WO2011087194A1 - Solar light collecting device - Google Patents

Abstract

According to the present invention, a solar light collecting device condenses incident solar light and emits parallel condensed light. The solar light collecting device comprises: a transparent solid light collector wherein a plurality of collimation and collection modules provided with an integrated collimator is formed at a constant interval in a one-dimensional array; a horizontal reflector which corresponds to the collimation and collection modules one to one and performs total horizontal reflection of solar light delivered from the collimation and collection modules right and left; and a vertical reflector which performs total vertical reflection of solar light delivered from the horizontal reflector upward and downward. The solar light collecting device is composed of prism sheets of the upper and lower ends which are installed with the light collector to gradually collect incident solar light by two or four pairs of unit collimation and collection modules. According to the present invention, the solar light collecting device condenses solar light effectively for maximizing the condensing efficiency of solar energy and simultaneously reducing production costs, and consequently, boosts economic effect compared with investment.

Description

Solar concentrator

The present invention relates to a solar concentrator, and more particularly, to collect sunlight, which is incident on the front surface of a flat plate and a large area, by using a collimation condenser module having a plurality of condenser lenses and a collimator integrated with at least one total reflection guide means. The present invention relates to a solar light collector that can maximize the light collection efficiency of solar energy and at the same time significantly reduce the manufacturing cost.

In general, the method of using solar energy absorbs solar heat by using solar power generation, solar heat collecting pipe or heat collecting plate which produces electricity by using solar cell, and solar heat collecting, lighting or plant growth that uses it for hot water production or heating. Alternatively, there is a solar natural light, such as natural light using a solar natural light module or a reflector for use in the photocatalyst.

As is well known, in order to make full use of solar energy, it is necessary to efficiently collect solar light and various solar light concentrating devices are used for this purpose. The light intensity of the light concentrating device is used for photovoltaic power generation, solar heat collection, solar natural light, etc. Whatever the method, it is directly related to solar energy efficiency.

Photovoltaic concentrators include point-focus dish types, point-focus Fresnel lens types, linear-focus Fresnel lens types, and Helios. Tet type (heliostat type), Gregorian / Casegrain condensing system, condensing using holographic prism sheet, etc. There are a myriad of various methods are known, and the condensing lens and the optical system using a condensing mirror are used for condensing.

Conventional photovoltaic concentrators described above typically inevitably increase the size of the photovoltaic concentrator structure in order to increase the amount of power generation / solar heat collection / photovoltaic natural light of the photovoltaic power generation facility. Because of the many constraints in the market, it was very difficult to expect economic feasibility.

For example, in order to overcome such a problem, a technical alternative to increase solar energy efficiency and, above all, to secure an important investment economy is required.

As a first conventional technology for condensing such solar light, there is one such as Japanese Patent Laid-Open No. 2009-277817.

Referring to FIG. 18, the sealed box-shaped outer box 2 covers the circumference of the plurality of solar panels 6, and the reflective mirror 5 is formed inside the outer box 2. On the outer box 2, a lens array 8 composed of a plurality of lenses 8a is provided.

In addition, holes 12 are drilled on the outer box 2, and the light condensed by the respective convex lenses 8a is incident on the outer box 2, respectively, so that the plurality of convex lenses 8a are in the radial direction. And to form a right angle or an acute angle to the surface direction of each solar cell panel (6).

Therefore, since the radial direction of the plurality of convex lenses 8a forms a right angle or an acute angle with each of the surface directions of the plurality of solar panels 6, the light is collected by the convex lens 8a and passes through the hole 12. The optical axis of is parallel or acute with each plane direction of the plurality of solar cell panels 6, and the light axis of the solar cell panel per the same projection area of the sunlight as compared to the case where the optical axis of light is incident perpendicularly to the solar cell panel 6 The area can be made high.

Moreover, the outer box 2 covers the circumference | surroundings of the some solar cell panel 6, is condensed by the convex lens 8a, and the light which passed through the hole 12 is the inner surface of the outer box 2, or partition member. Repeating multiple reflections between the reflective surface 5a of the reflective mirror 5 formed on the surface of (3) and the solar cell panel 6, and contributing to photoelectric conversion to the solar cell panel 6 efficiently. Therefore, the photoelectric conversion efficiency per same projection area of sunlight can be improved.

However, the first conventional technique described above is a structure in which one solar cell panel is corresponded by one condenser lens (or a group of lens groups), and since the solar cell panel requires expensive solar cells, two or more solar cells are required. The necessity of further increasing the density of sunlight by condensing lenses (or a group of lenses) in a manner that corresponds to one solar panel has emerged.

On the other hand, as a second conventional technique for condensing sunlight collected by two or more condensing lenses to a point, there is a device such as US Patent Publication No. 2010 /-24805.

As shown in FIG. 19, the solar light 506 is primarily focused on the condenser lens 510, and the light on the condensed light receiving element 530 is transmitted to the light sheet 542, the intermediate sheet 55, and the main light transmission sheet. (It is a device for condensing through total reflection through 560.

However, the above-described second prior art focuses light collected from two or more condensing lenses to a single point, but must use complex devices such as multiple light transmission sheets, in particular, using total reflection within several sheets. As a result, a large amount of light is lost, and since total reflection must occur on the entire surface of the sheet, a complicated and expensive design for the critical angle is required. There is a lot. Furthermore, since the collected light is not parallel light, the cross-sectional area collected at one point becomes wider and the condensing degree is limited.

Finally, Korean Patent No. 932213 as the third prior art is to further solve the problems of the first and second prior art.

Referring to FIG. 20, a plurality of unit condensing lens units 110 having convex round cross-sections are formed on an upper surface thereof, and a unit groove 120 is disposed at a predetermined position corresponding to the unit condensing lens unit 110 on a lower surface thereof. Each of the condensing lens 100 is formed on the lower surface, one surface 121 is formed in a direction so that refracted sunlight is not incident, the other surface 122 is a unit groove formed in a conical curve shape 120 is formed. In addition, a plurality of unit grooves 120 are formed in such a manner that an optical focus F1 having a conical curve is placed on the lens axis of the unit condensing lens unit 110, and thus the optical focal line and the cone of the unit condensing lens unit 110 are positioned. Curved optical focal lines are matched in space. Accordingly, the solar light 111 incident on the unit condensing lens unit 110 is gathered at the focal point F1 formed by the unit condensing lens unit 110, and has a surface 122 formed in the shape of a conical curve of the unit groove 120. After being reflected by the light, the light is collected onto the surface of the solar cell 130.

However, although the third prior art is also focused by the condenser lens, there are problems in the second prior art because the focused light is not parallel light, and furthermore, the conical curved surface 122 of the unit groove is specified. Manufacturing cost is expensive because it must be designed and manufactured on-demand precisely to meet the design, and when the design is changed or can not be used for other devices, the compatibility is low, there is also a problem in economics.

As an alternative to the improvement of this problem, the present applicant manufactures the above-mentioned unit photovoltaic light collecting device in a small size, but uses a plurality of arrays and simultaneously drives the azimuth and altitude angles of the sun to parallel the incident sunlight and solar light. Blinds with Dual Axis Solar Tracing Function (Korean Patent Application No. 10-2009-0129310) and Two Axis Solar Tracing Vertical Euro Blinds (Korean Patent Application No. 10-2009-0129310) And a patent application for "side solar collector (Korean Patent Application No. 10-2010-0004153)" and "prism hybrid solar collector (Korean Patent Application No. 10-2010-6250)", the contents of these specifications Is also referred to herein.

The first and second applications are a two-axis solar tumbler that allows sunlight to be incident in parallel as an improvement on the basis to increase the light collecting efficiency of the solar light collecting device, and the third application is based on the use of the two-axis solar tumbler, Condensing part is provided in the arrangement of a plurality of lenses and mirror condensing module, and the reflecting part is provided in multiple stages to collect parallel solar light incident on the front surface, and the condensing part is first with one side member on the lower surface or the upper surface of the condenser. It is an improved alternative to increase the condensing efficiency of the solar light collecting device by reflecting the focused primary focused solar light to the side through the reflecting part, and the fourth application is provided with a plurality of reflecting parts on the upper and lower sides of the light collecting part. The upper and lower prism sheets can be used to reduce the thickness of the solar light collecting device and to gradually collect the side as well as the light.

The present invention was created in view of the above-described problems in the prior art, and is provided with a collimator (collimator) integrally to the light collecting unit so as to focus the solar light effectively to maximize the light condensing efficiency of the solar energy. The aim is to provide a solar concentrator that can further reduce manufacturing costs and increase the economics of investment.

The objective is to provide a plurality of one-dimensional arrays of transparent solid unit collimator-type condensing modules (hereinafter referred to as "collimating condensing modules") in which collimators are integrally formed so as to focus incident sunlight and emit parallel condensed light. Condensing unit formed with; and a horizontal reflector for one-to-one correspondence with the collimating condensing module and horizontally reflects the sunlight received from the collimating condensing module horizontally from side to side, and vertically reflecting the vertically vertically reflected sunlight from the horizontal reflecting unit. Each having a reflector; An aspect of the present invention is characterized by comprising a pair of upper and lower prism sheets arranged above and below the light collecting part, and configured to collect incident light by two or four pairs of unit collimating modules or gradually. Achieved by a light condenser.

In addition, the light collecting part focuses sunlight transmitted from the vertical reflecting portion of the lower prism sheet to reduce the width of the sunlight transmitted to the horizontal reflecting portion of the upper prism sheet and emits parallel solar light. A child collimation condenser module may be further formed, and the horizontal reflecting portion or the vertical reflecting portion is formed by a right isosceles triangle or a '∧'-shaped groove, and a hypotenuse and an angle of a right isosceles triangle forming an interface with air. 'The inclination surface angle of the shape groove is characterized in that 45 degrees.

And the collimating module or child collimating module constituting the light collecting unit is a collimator (collimator); and,

Linear convex condensing lens (hereinafter referred to as “convex condensing lens”) or convex condensing lens with convex shape on top, concave convex concave, concave to the bottom, linear concave with no mirror reflecting layer on the back Mirror condenser (hereinafter referred to as "concave mirror condenser") or linear array of confocal concave mirror condenser, linear fresnel condenser (hereinafter referred to as "fresnel condenser") or point of focus fresnel condenser Linear Casegrain Condensing Lens (hereinafter referred to as “Casegrain Condensing Lens”), which can focus the sunlight through secondary reflection through the Casegrain main reflecting mirror and the Casegrain sub-reflecting mirror with the reflective layer formed on both sides except the center surface. Linear array of focal casecase grain collecting lens, Gregorian main reflecting mirror with reflecting layer formed on both sides except center plane and its The collimator may be one selected from a linear Gregorian condenser lens (hereinafter referred to as a "Gregorian condenser lens") or a linear array of focus-focused Gregorian condenser lenses capable of focusing sunlight through an annular secondary reflection mirror. ) And an optical axis are integrally formed, and the collimator may include a linear convex lens; Linear aspherical convex lens; Linear green lens; Linear Fresnel lens; Multiple green lens linear arrays; Linear arrays of multiple focal convex lenses; Linear arrays of multiple focal aspherical convex lenses; It is characterized in that any one selected from the linear arrangement of a plurality of focusing Fresnel lens.

In addition, the upper and lower prism sheet or the light collecting part is a transparent material having a light refractive index greater than that of air, and is one selected from a plastic having an ultraviolet blocking layer, a plastic made of an ultraviolet blocking monomer, tempered glass, pyrex, and quartz glass. The lower prism sheet may further include a prism sheet provided in a stepped manner to reflect the focused light horizontally again, and to focus the reflected light from the side to the multi-stage, and the vertical reflection formed on the upper prism sheet. The part is formed to correspond to the boundary of the collimating module and totally reflected the incident light downward, or formed to correspond to the first photovoltaic incidence site that the focused light is focused again by the collimating module with the first sunlight. It has a high total reflectance on the outer surface of the horizontal reflector and the vertical reflector. The reflection layer to be formed, the reflection layer include aluminum, silver, gold, nickel, characterized in that the coating is formed by any one selected from stainless steel.

According to the present invention, it is possible to maximize the solar energy utilization efficiency by effectively condensing the sunlight incident on a large area, and is simple in structure and easy to manufacture and install, and is flat and thin, not bulky, and the manufacturing cost is further increased. Inexpensive effect can be obtained.

1 is an exemplary view for explaining the basic concept of a solar collector according to the present invention.

2 is a cross-sectional view showing the structure of the solar light collector according to the first embodiment of the present invention, in which a linear collimator (collimator) comprises a light collecting part using an collimating light collecting module integrally formed in a convex condenser lens, and an upper and lower prism sheet.

3 is a cross-sectional view of a solar light collector according to the first embodiment of the present invention for condensing the wider width by the vertical reflector again.

4 is a cross-sectional view of a solar collector according to a first embodiment of the present invention for gradually collecting light;

5 is a cross-sectional view showing the structure of a solar light collector according to the second embodiment of the present invention in which a linear collimator (collimator) comprises a light collecting part using an collimating light collecting module integrally formed in a concave mirror light collecting lens and an upper and lower prism sheet.

6 is a cross-sectional view showing the structure of a solar light collector according to the third embodiment of the present invention in which a linear collimator (collimator) comprises a light collecting part using an collimating light collecting module integrally formed in a Fresnel light collecting lens and an upper and lower prism sheet.

7 is a cross-sectional view showing the structure of a solar light collector according to the fourth embodiment of the present invention, in which a linear collimator (collimator) comprises a light collecting part using an collimating light collecting module integrally formed in a casee grain light collecting lens, and an upper and lower prism sheet.

Fig. 8 is a cross-sectional view showing the structure of a solar light collector according to a fifth embodiment of the present invention in which a linear collimator (collimator) comprises a light collecting part using an collimating light collecting module integrally formed in a Gregorian light collecting lens and an upper and lower prism sheet.

9 is a cross-sectional view of a solar collector according to a sixth embodiment of the present invention.

10 is a cross-sectional view of a solar collector according to a seventh embodiment of the present invention.

11 is a cross-sectional view of a solar collector according to a modification of the seventh embodiment of the present invention.

12 is a cross-sectional view of a solar collector according to still another modification of the seventh embodiment of the present invention.

13 is a cross-sectional view of a solar collector according to a modification of the collimator of the present invention.

14 is a cross-sectional view of a solar collector according to another modification of the collimator of the present invention.

15 is a cross-sectional view of a solar collector according to another modification of the collimator of the present invention.

16 is a cross-sectional view of a solar collector according to another modification of the collimator of the present invention.

17 is a plan view of a solar light collector according to a modification of the light collecting lens of the present invention.

18 is a solar concentrator for the first prior art.

19 shows a solar collector for the second prior art.

20 shows a solar collector for the third prior art.

Hereinafter, a solar collector according to the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, and the scope of the present invention is not limited to the scope of the accompanying drawings, as long as those skilled in the art. You will know.

1 is an exemplary view for explaining the basic concept of a solar collector according to the present invention.

As shown in FIG. 1, the solar light collector 1 according to the present invention focuses unfocused sunlight 11a (hereinafter referred to as “first sunlight”) incident on the front surface and emits parallel focused light. A collimator 20 having a solid solid collimator formed integrally with a collimator 211 so as to correspond to the collimator 20 formed in a plurality of one-dimensional arrays and each collimator concentrator 21, A horizontal reflector (refer to FIG. 2 for more detailed structure) and a horizontal reflector (refer to FIG. 2 for horizontally reflected) which receive the primary focused sunlight 11b from 21 again and horizontally reflect it again (more detailed structure) 2 is formed, the upper prism sheet 30a and the lower prism sheet 30b which are located on the upper and lower surfaces with the condenser 20 interposed therebetween and receive light from the condenser.

Hereinafter, in various embodiments according to the present invention described below, the solar light collector 1 is configured to automatically adjust the azimuth and elevation angles of the sun according to the position change of the sun by a sun tracker (not shown). This may be easily implemented by those skilled in the art through the rotation driving means, the inclination angle adjusting means, etc. disclosed in the related art before the present invention, and the description thereof will be omitted since it is described in detail in the first and second applications.

In addition, in various embodiments according to the present invention described below, it is assumed that sunlight incident on the upper surface of the solar light collector 1 is direct sunlight in the form of parallel light, and the collimating light collecting module 21 is continuously arranged in one dimension. In addition, a light collecting means (not shown) may be installed on the front side of the collimating light collecting module 21 to be configured to be incident by refracting incident sunlight at a predetermined angle. In addition, it is assumed that the refractive indexes of the materials used for the light-converging unit 20 and the upper and lower prism sheets 30a and 30b, respectively, are constant with respect to incident sunlight.

(First embodiment)

2 is a cross-sectional view showing the structure of the solar light collector according to the first embodiment of the present invention, in which a linear collimator (collimator) includes a light collecting part using an collimating light collecting module integrally formed in a convex condenser lens, and an upper and lower prism sheet. 3 is a cross-sectional view of a solar light collector according to the first embodiment of the present invention for condensing the wider width by the vertical reflector, and FIG. 4 is a cross-sectional view of the solar light collector according to the first embodiment of the present invention to gradually collect .

As shown in FIG. 2, the solar light collector 1a according to the first embodiment of the present invention is located at the light concentrator 20a and the upper and lower ends of the light concentrator 20a, respectively, from the light concentrator 20a. It consists of upper and lower prism sheets 30a and 30b made of a transparent material which receives light and collects light.

In this case, the condenser condenser lens 210a having a convex round cross section is formed on an upper surface of the condenser 20a, and a collimating convex lens 211 ′ formed integrally with the convex condenser lens 210a on a lower surface thereof. It consists of a plurality of array of collimation light collecting module (21a) made.

At this time, as shown in FIG. 2B, the collimating convex lens 211 ′ coincides with the convex condenser lens 210a and the collimating convex lens 211 ′ and the convex condensing lens 210a. The first sunlight 11a incident to the convex condenser lens 210a is integrally formed so that the optical focal point F is positioned, and one elongated linear focal point in the longitudinal direction is provided between the collimating convex lenses 211 'formed in the longitudinal direction. The primary focused solar light 11b, which forms a line and is first focused, and has passed through a linear focal line, proceeds to the collimating convex lens 211 'and is refracted in parallel light form by the collimating convex lens 211'. It exits to the bottom.

Therefore, the first sunlight 11a incident to the light collecting part 20a having a large area is divided and collected by each collimating light collecting module 21a, and the collimating convex lens 211 'is formed to correspond to each convex light collecting lens 210a. Since the focused light is focused to the primary focused light in the form of parallel light and proceeds to the lower end, as a result, the parallel light in which the sunlight incident on the large area is primarily focused by the light concentrator 20a in the form of a plurality of linear bands. The light is focused on the light 11b.

At the same time, the horizontal reflecting portion 41h formed on the lower prism sheet 30b is formed to correspond one-to-one with the collimating convex lens 211 ', and totally reflects the incident primary focused sunlight 11b to the left and right sides. Its shape is formed by a right isosceles triangle.

In addition, the horizontal reflecting portion 41h 'formed on the upper prism sheet 30a is reflected from the lower prism sheet 30b toward the upper prism sheet 30a by the vertical reflecting portion 41v formed on the lower prism sheet 30b. That is, formed at a position corresponding to the boundary 23a of the collimating light concentrating module 21a, the shape is a right-angle isosceles triangle, and reflects the incident primary focusing sunlight 11b to the left and right sides.

The lower prism sheet 30b is formed with a vertical reflecting portion 41v having a '∧' shape at a position corresponding to the boundary 23a of the adjacent collimating light collecting module 21a, and both ends thereof are formed by a '∧' shaped groove. In addition to forming a right isosceles triangle, two right isosceles triangular hypotenuses which define a boundary between a dense medium (lower prism sheet) and a small medium (air) are formed as inclined surfaces, respectively, from both horizontal reflecting portions 41h. The transmitted primary focused solar light is diverted 90 ° to the top by the total reflection principle on each inclined plane of each rectangular isosceles triangle shape, and the primary focused solar light 11b that is turned 90 ° to the top is the width thereof. (t) is twice the height (t) of the horizontal reflecting portion 41h formed in the lower prism sheet 30b, and passes through the boundary 23a portion of the collimating light collecting module 21a to allow the upper prism sheet 30a to be formed. Horizontal reflectors (4) 1h ') is totally reflected (see the bottom of FIG. 2 (c)).

At this time, horizontal reflecting portions 41h are formed on the lower prism sheet 30b so that adjacent primary collimating light concentrating modules 21a are reflected by the reflected primary focused solar light 11b horizontally from side to side, and are collected at the boundary 23a. Is formed oblique in roughly trapezoidal form.

On the other hand, the horizontal reflector 41h 'positioned on the upper prism sheet 30a has a vertical reflector 41v adjacent to the right side of the transmitted primary focused sunlight 11b, as shown in FIG. '), And another pair of collimating light collecting modules 21a adjacent to the right side of the vertical reflecting portion 41v' are also focused firstly to the horizontal reflecting portion 41h 'of the upper prism sheet 30a. The total reflected solar light 11b is transmitted and transmitted, but the horizontal reflecting portion 41h 'of the upper prism sheet 30a is totally reflected toward the left, that is, the vertical reflecting portion 41v' of the upper prism sheet 30a. As a result, all of the primary light 11b focused at four adjacent collimating light collecting modules 21a are collected at the vertical reflecting portion 41v ', and are turned 90 ° to be totally vertically reflected toward the lower prism sheet 30b. .

Accordingly, as shown in Fig. 2C, the vertical reflecting portion 41v formed in the lower prism sheet 30b is formed by the '∧'-shaped grooves, resulting in 90 ° total reflection prism as a result. Since the incident light is arranged side by side in order to totally reflect to minimize refraction or diffuse reflection loss, the sum of the widths reflected from two orthogonal isosceles triangular slopes is collimated convex lens formed at the bottom of each convex condenser lens 210a. It is twice (2t) of the primary focusing sunlight width t passing through the 211 ', and the height of the horizontal reflecting portion 41h' of the upper prism sheet 30a is two collimating light collecting modules 21a. Since the primary focusing sunlight 11b incident from the left and right sides is simultaneously received and converted to 90 degrees horizontally without loss, the thickness is twice as thick as the height of the horizontal reflecting portion 41h 'of the lower prism sheet 30b. It is desirable to have All.

In the same principle, the width of the primary focusing sunlight totally reflected vertically toward the lower prism sheet 30b by the vertical reflecting portion 41v 'of the upper prism sheet 30a is the collimating convex lens 211 of the convex condenser lens 210a. 4 times the width of the primary focused solar light 11b passing through ').

Then, the aggregated primary focused solar light passes through the lower prism sheet 30b and aggregates (lights) to a solar cell (not shown) or a solar energy utilizing device (not shown) that is placed at the bottom.

Inclined surfaces constituting the horizontal reflecting portions 41h, 41h 'and vertical reflecting portions 41v, 41v' are formed at an angle so that total reflection occurs at an interface when light passes from a dense medium to a small medium. In the first embodiment of the present invention, a 45 ° angle is formed.

Herein, total reflection refers to a phenomenon in which light is reflected, rather than refracted, when light enters a dense medium from a dense medium. In particular, when the angle of refraction is 90 °, the angle of incidence is a critical angle θ. When the incident angle is larger than the critical angle, total reflection occurs, and when compared with the refractive index n, n = 1 / sinθ has a relationship.

As described above, the plurality of collimating light collecting modules 21a constituting the light collecting unit 20a are simultaneously formed in units of two pairs or four pairs, and the first sunlight 11a that is incident is collected at a specific position as shown in FIG. And concentrated solar light 11c.

Although not shown, another upper and lower prism sheet 30a (preferably a staircase type) is added to the upper and lower ends of the upper and lower prism sheets 30a and 30b, or the upper and lower prism sheets 30a of the same medium. (30b) can be made high so that the light collected at a specific position can be condensed on the side in multiple stages, and when the cascade is formed, the refractive index between the upper and lower prism sheets 30a and 30b is higher and higher. It can be configured so that solar light which has propagated through the upper and lower prism sheets 30a and 30b is totally reflected by providing a medium layer smaller than the lower prism sheets 30a and 30b.

3A, the vertical reflecting portion 41v 'formed in the upper prism sheet 30a has a condensing position of the convex condenser lens 210a instead of the boundary 23a position (for example, as shown in FIG. 3A). , The apex of the convex condenser lens, the primary focused solar light 11b can be focused again by the collimating condenser module 21a, so that the vertical reflecting portion 41v 'of the upper prism sheet 30a is formed. The width of the focused condensed light of the collimating condensing module (21a) can be reduced to the original width (t) by converging with the first sunlight.

As another modified example, as illustrated in FIG. 3B, the child collimating light collecting module 22a is further provided at the boundary 23a of the adjacent collimating light collecting module 21a, and the upper prism sheet 30a is provided. ) Can be reduced to the horizontal reflecting portion (41h '), and as described above, the collimation condensing module 21a is primarily focused on the first light 11b focused on the sunlight 11b. By focusing, the width of the sunlight which is increased by the vertical reflecting portions 41v and 41v 'can be reduced to focus altitude.

Meanwhile, as another modified example, as illustrated in FIG. 4A, one child collimation condenser module 22a is further provided for two adjacent collimation condensing modules 21a, and these are continuously set as one set. In one set, the primary collimated light converging module 11 is collected by collecting the primary focused solar light 11b incident from a pair of adjacent collimating light concentrating modules 21a which are incident from the lower prism sheet 30b to the left and right. 22a) to reduce and widen the width, and transmit light to the adjacent sets, while the other sets of adjacent vertical reflecting portions 41v ', as described above, instead of the position of the boundary 23a If the process of highly condensing again at the apex of the convex condensing lens is performed for each successive set, it can gradually collect the light while driving the sunlight to the side to gradually increase the light density with little light loss. It is possible to have a large light collecting effect, which is also one of the features of the present invention.

In this case, as shown in FIG. 4B, even when the child collimation condensing module 22a is formed between two adjacent collimating condensing modules 21a, the child collimation condensing module 21a is compared with the collimation condensing module 21a. The module 22a is arranged upside down, and the primary solar focus in each collimating light collecting module 21a is focused on the collimating convex lens 211 'formed at the bottom so that light does not substantially pass from side to side. Since a medium space is formed, the width of the wide child convex condenser lens 220a having a predetermined curvature provided at the lower end of the condenser 20a is largely formed using this area, so that it is appropriately disposed on the upper surface. The width of the boundary surface 23a on which the child collimating convex lens 211 ″ is formed can be formed in close contact with the width of the child collimating convex lens 211 ″, and the child collimating convex lens 211 ″ is wide. Can be formed very small Therefore, the entire collimation light collecting module 21a and the child collimation light collecting module 22a can be compactly formed, thereby minimizing the loss of the sunlight 11a first incident on the child collimating convex lens 211 ″. .

Thus, according to the present invention, the first sunlight 11a in the form of parallel light incident on the front of the light collecting portion 20a having a large area is each collimating light collecting module 21a or collimating light collecting module 21a and the child collimating light collecting module. (22a) and the upper and lower prism sheets (30a, 30b) are driven to collect a very small linear area of final height and condensed, so that the sun required when installing a solar cell (not shown) at the condensing position The battery area can be significantly reduced, and even when installing a solar natural light module (not shown) that finally injects sunlight into the optical cable, a linear condensing optical system can be used to reduce the manufacturing cost and to provide a flat natural light module. Because it can be manufactured, the operating space can be significantly reduced.

This structure is very inexpensive compared to the conventional technique in which the collimator for forming the parallel sunlight required for efficiently concentrating the primary focused sunlight 11b is formed on the upper and lower prism sheets 30a and 30b. Since the alignment of the optical axis with the collimator is precisely aligned in the mold manufacturing step, the condenser 20a and the upper and lower prism sheets 30a and 30b can be easily assembled, and the manufacturing cost can be greatly reduced. In the case of manufacturing the upper and lower prism sheets 30a and 30b, only the vertical reflecting portions 41v and 41v 'and the horizontal reflecting portions 41h and 41h' are required, and the upper and lower prism sheets are very simple in structure. The prism sheets 30a and 30b can also be manufactured inexpensively, so that further cost reduction effects are expected. The reason for this is that those skilled in the art can receive the parallel light from the collimating light concentrating module 21a or the child collimating light concentrating module 22a whose optical axis is aligned with the vertical reflecting portions 41v and 41v 'of the upper and lower prism sheets 30a and 30b. And the thicknesses of the lower prism sheets 30a and 30b when they are assembled in accordance with the horizontal reflecting portions 41h and 41h ', and the vertical reflecting portions 41v and 41v' and the horizontal reflecting portions 41h and 41h 'are different. The height and size of the) can be easily expanded because there is room to enlarge a little, and further description will be omitted.

On the other hand, the material of the upper and lower prism sheets 30a and 30b, the method of forming the vertical reflecting portions 41v and 41v ', and the horizontal reflecting portions 41h and 41h', and the vertical reflecting portions 41v and 41v '. ) And the reflective layer, which may be further formed in the horizontal reflecting portions 41h and 41h ', may be omitted by referring to the first and third application sources 3 and 4, and the refractive index of the light collecting part 20a may be omitted. Optically transparent materials such as plastic, tempered glass, pyrex, and quartz glass are preferable than air, and in the case where the light collecting purpose of the solar light collector 1a of the first embodiment is UV sunlight, even if a UV blocking layer is formed Since plastic deteriorates when exposed to UV for a long time, it is preferable to select tempered glass, pyrex, or quartz glass material.As a plastic material having a UV blocking layer is formed for the production of visible sunlight, natural light, or sunlight Hawk on the side It is preferred.

In general, since plastic yellowing occurs within 5 years by solar UV, in order to solve the yellowing problem caused by solar UV, the UV liquid may be coated or UV-blocking monomer to ensure weather resistance. In the first embodiment, the UV-400 acrylic sheet using the monomer for the UV-blocking plastic lens is used, and the matter regarding the improvement of weather resistance by the solar UV is easily implemented by those skilled in the art, and thus the description thereof will be omitted.

In general, acrylic plastics used in optical glass or plastic optical cables have a light attenuation rate of less than 2 to 5% per meter, so almost all light is transmitted and collected. Therefore, maximizing the light collecting efficiency is obvious.

On the other hand, the collimating condenser module 21a has a small convex condenser lens (not shown) for concentrating sunlight incident on a small circular plane or a square plane at a focal point when viewed from an image side where sunlight is vertically incident. And a gap may be formed between the “point focus” convex condenser lenses (not shown) arranged in a straight line, and the linear collimator may also have a one-to-one correspondence with the “point focus” convex condenser lens. Point focus ”collimator can be formed as a linear array, the corresponding horizontal reflector 41h of the lower prism sheet 30b can also be formed as a point instead of a linear, and instead of the child convex condenser lens 220a A linear array of child convex condensing lenses (not shown) can be formed, and the linear collimator corresponding to the child convex condensing lens 220a is also confronted with the "point focus" convex condensing lens. Corresponding to "focus point" may be formed with a linear arrangement of the collimator.

In addition, although not shown, the convex condenser lens 210a and the collimating convex lens 211 ′ of the collimating condenser module 21a may be formed in a concave groove shape, and the child convex condensing lens of the child collimating condenser module 22a ( The same applies to the 220a) and the child collimating convex lens 211 ′, and the collimating convex lens 211 ′ and the child collimating convex lens 211 ″ may be formed to have a microscopic size.

In the first embodiment, a collimating convex lens 211 'and a child collimating convex lens 211 "are used as collimators (collimators), but in addition, linear aspherical convex lenses and linear green lenses; A linear Fresnel lens, a plurality of green lens linear arrays, a plurality of linear focus convex lenses, a linear array of multiple focus-focused aspherical convex lenses, a linear array of a plurality of focus-focused Fresnel lenses are selected This is generally related to lenses, microlens formation or microcollimators (collimators) known in optical communications, optics or micro-optics, and detailed descriptions thereof will be omitted. The method may be easily implemented by those skilled in the art through a wide variety of optical means in addition to the method described above.

In addition, according to the present invention, the lower prism is primarily used to reflect the sunlight horizontally in the form of parallel light in the vertical reflecting portions 41v, 41v 'and horizontal reflecting portions 41h, 41h' without loss of efficiency. The primary focused sunlight 11b reaching the horizontal reflecting portion 41h of the sheet 30b should be parallel light as much as possible, and the narrower the width, the more effective it is. Secondly, the sunlight is the upper prism sheet 30a. In the process of passing through the vertical reflecting portion 41v (41v ') and the horizontal reflecting portion (41h) (41h') of the parallel light as much as possible, the narrower the width of the narrower no loss of light and the thickness It will be readily understood by those skilled in the art that the reduction will be possible. Therefore, through the role of a linear collimator (collimator), the primary focused solar light is incident in parallel, and at the same time, the width of contact with the horizontal reflectors 41h and 41h 'is reduced, so that the upper and lower prism sheets 30a are reduced. The thickness of 30b can be reduced, and as the contact width decreases, the upper and lower prism sheets 30a and 30b having the same thickness can be formed in multiple stages, so that the number of arrays of collimating light concentrating modules 21a can be increased. In addition, this will reduce the radius of curvature of the collimating light concentrating module 21a, and as a result, the focal length can be reduced, and the overall thickness of the solar light collector 1a can be easily understood.

(Second embodiment)

5 is a cross-sectional view showing the structure of a solar light collector according to the second embodiment of the present invention in which a linear collimator (collimator) is composed of a light collecting part using an collimating light collecting module integrally formed in a concave mirror light collecting lens and an upper and lower prism sheet. .

As shown in FIG. 5, the solar light collector 1b according to the second exemplary embodiment of the present invention includes a light collecting part 20b in which a plurality of collimating light collecting modules 21b are arranged in a straight line, and the collimating light collecting module 21b. Consists of the upper and lower prism sheets 30a, 30b made of a transparent material for condensing the primary focused sunlight by the light, the collimator module 21b is a concave formed integrally with a linear collimator (collimator) And a mirror condenser lens 210b.

In this case, sunlight is first reflected through a lower prism sheet 30a formed of a transparent material, reflected by a mirror reflecting layer formed on the condensing concave mirror 210b, and sunlight is collimated with a collimating convex lens 211 ′ positioned upside down on the upper surface. Focusing on, and the process of condensing sunlight again is the same as the first embodiment of the present invention.

On the other hand, although the collimation concentrating module 21b is not shown, a plurality of small "point focus" concave mirrors may be formed by linearly arranging a condenser lens (not shown) in a longitudinal direction, and a small "point focus" concave mirror arranged in a straight line. A gap may be formed between the condenser lenses (not shown), and the collimator may also be formed as a linear arrangement of the “point focus” collimator so as to correspond one-to-one to the “point focus” concave mirror condenser lens.

In addition, the mirror reflective layer formed on the concave mirror condenser lens 210b means a metal material having a reflectance of 90% or more, and aluminum, silver, gold, nickel, stainless steel, or the like may be used. In the present invention, aluminum having a reflectance of 90% or more and having a low cost is used as a reflective material.

In this case, the primary focusing sunlight 11b reflected from the upper prism sheet 30a may be freely transmitted when the mirror reflective layer is not formed at the boundary 23b between the collimating light collecting modules 21b.

(Third embodiment)

6 is a cross-sectional view showing the structure of a solar light collector according to the third embodiment of the present invention, in which a linear collimator (collimator) comprises a light collecting part using an collimating light collecting module integrally formed in a Fresnel light collecting lens and an upper and lower prism sheet. .

As shown in FIG. 6, the solar light collector 1c according to the third exemplary embodiment of the present invention enters the light collecting part 20c and the light collecting part 20c in which a plurality of collimating light collecting modules 21c are arranged in a straight line. It consists of the upper and lower prism sheets 30a and 30b made of a transparent material that receives and collects the first sunlight 11a that is primarily focused on the collimation condensing module 21c.

In addition, the collimating condenser module 21c includes a Fresnel condensing lens 210c and a collimating convex lens 211 '.

(Modification of Third Embodiment)

As shown in FIG. 11, a plurality of “point focus” small Fresnel condenser lenses 21 ″ are arranged in a row, focusing incident sunlight such as one collimation condenser module 21c, and then a lower prism sheet. Can be configured to forward to 30b,

On the other hand, although not shown, the collimating condensing module 21c may be formed by linearly arranging a plurality of small "point focus" Fresnel condenser lenses (21 'of FIG. 11) in the longitudinal direction, and the small "point focus" arranged in a straight line. A gap may be formed between the Fresnel condenser lenses 21 ', and the collimator may also be formed in a linear arrangement of the “point focal” collimator so as to have a one-to-one correspondence with the “point focus” Fresnel condenser lens.

The linear arrangement of the Fresnel condenser lens 210c and the plurality of small "point focus" Fresnel condenser lenses is already known to those skilled in the art, and instead of the convex condenser lens 210a of the first embodiment of the present invention, the Fresnel condenser lens 210c Alternatively, except that a linear arrangement of a plurality of small “point focus” Fresnel condenser lenses (not shown) is used, the operating relationship is the same as that of the solar concentrator 1a. Detailed description will be omitted below.

(Example 4)

FIG. 7 is a cross-sectional view illustrating a structure of a solar light collector according to a fourth embodiment of the present invention in which a linear collimator (collimator) includes a light collecting part using an collimating light collecting module integrally formed in a casee grain light collecting lens and an upper and lower prism sheet.

As shown in FIG. 7, the solar light collector 1d according to the fourth exemplary embodiment of the present invention has a collimator 20d having a plurality of collimating light collecting modules 21d arranged in a straight line, and a collimating light collecting module 21d. It consists of upper and lower prism sheets 30a, 30b made of a transparent material for condensing and receiving the primary focused solar light, and the collimating condenser module 21d is a collimator collimator 211 as a linear collimator (collimator). ') Is composed of a casee grain condensing lens integrally formed.

The casein condensing lens is composed of a linear casee grain main reflecting mirror 210d2 and a linear casee grain minor reflecting mirror 210d1, and a reflective layer is formed on the outer circumferential surface of the linear casee grain main reflecting mirror 210d2 except for the collimating convex lens 211 ′. Sunlight incident in parallel to the linear casee grain reflection mirror 210d2 is focused and reflected by the linear casee grain reflection mirror 210d1 provided at the focal front end of the linear casee grain reflection mirror 210d2, and the linear casee grain reflection mirror 210d1 is reflected. ) Is reflected back to the collimating convex lens 211 'formed at the center surface of the linear casee grain main reflecting mirror 210d2, and is emitted as parallel light by the collimating convex lens 211'.

Subsequently, the first focused solar light passing through the collimating convex lens 211 ′ is totally reflected through the lower prism sheet 30b and the upper prism sheet 30a to be concentrated (conceived) to a specific position.

On the other hand, although the casee condensing lens is not shown, the “point focus” small casee grain condensing lens (not shown) may be formed by being arranged in a straight line in the longitudinal direction, and the “point focus” small casee grain condensing lens (not shown) is arranged in a straight line. A gap may be formed between them, and a linear collimator may also be formed as a linear array of “point focus” collimators so as to have a one-to-one correspondence with a “point focus” casee grain condenser.

As such, the casein condensing lens and the "point focus" compact caseingrain condensing lens (not shown) are already known to those skilled in the art in the field of telescopes or radio transmitters, and the casein condensing lens 210a instead of the convex condensing lens 210a of the first embodiment of the present invention. Or the operation relationship is the same as the solar light collector (1a) except for using a linear arrangement of the "point focus" small casee grain condenser lens (not shown), so a detailed description thereof will be omitted.

(Example 5)

FIG. 8 is a fifth aspect of the present invention, in which a linear collimator (collimator) comprises a light collecting part and an upper and lower prism sheet using a collimating condenser module integrally formed in a linear Gregorian condenser lens (hereinafter referred to as "Gregorian condenser lens"). It is sectional drawing which shows the structure of the solar collector according to an embodiment.

As shown in FIG. 8, the solar light collector 1e according to the fifth exemplary embodiment of the present invention is provided by a light collecting part 20e in which a plurality of collimating light collecting modules 21e are arranged in a straight line, and a collimating light collecting module 21e. It consists of upper and lower prism sheets 30a and 30b made of a transparent material for condensing and receiving primary focused sunlight, and the collimating condenser module 21e is a collimator collimator with collimating lens 211 '. ) Consists of a Gregorian condensing lens integrally formed.

The Gregorian condensing lens is composed of a linear Gregorian main reflective mirror 210e2 and a linear Gregorian sub-reflective mirror 210e1 and a reflective layer on the outer circumferential surface of the linear Gregorian main reflective mirror 210d2 except for the collimating convex lens 211 '. Is formed. Sunlight incident in parallel to the linear Gregorian primary reflection mirror 210e2 is focused and reflected by the linear Gregorian secondary reflection mirror 210e1 provided at the rear end of the focal point of the linear Gregorian primary reflection mirror 210e2. The reflecting mirror 210e1 reflects back to the collimating convex lens 211 'formed at the center bottom of the linear Gregorian main reflecting mirror 210e2, and the collimating convex lens 211' is parallel to the lower prism sheet 30b. Let go. Since the progress and focus of the solar light is the same as the fourth embodiment described above.

On the other hand, the Gregorian condenser lens is not shown, but the "point focus" small Gregorian condenser lens (not shown) may be formed in a straight line in the longitudinal direction, and the "point focus" compact Gregorian condenser lens (not shown) Not shown) may be formed between the linear collimator and the linear collimator may be formed as a linear array of the "point focus" collimator so as to correspond one-to-one with the "point focus" Gregorian condenser lens.

Such Gregorian condensing lenses and small "point focus" Gregorian condensing lenses (not shown) are already known to those skilled in the art in the field of telescopes or radio transmitters, and the Gregory instead of the convex condensing lens 210a of the first embodiment of the present invention. Since the operational relationship is the same as that of the solar condenser 1a except for using a linear array of an eye condenser lens or a small “point focus” Gregorian condenser lens (not shown), this detailed description will be omitted.

(Example 6)

Now, a solar light collecting device according to a sixth embodiment of the present invention will be described with reference to FIG. 9.

9 is an embodiment corresponding to FIG. 2, wherein the light collecting lens 21a and the collimating device are the same, but a reflecting mirror is used instead of a prism as a guide device for collimating focused light.

In addition, the present invention has been described as using the reflection mirror only, but in the second to fifth embodiments, the use of the reflection mirrors 41x and 41y instead of the prism as the guide device may be beyond the scope of the present invention. It doesn't make the content obscure.

In addition, in the present exemplary embodiment, two condensing lenses are paired, and parallel light focused at each condensing lens is collected as one and incident to a solar device such as a solar cell. However, as in the first embodiment of FIG. Reflective mirrors are not used to prohibit pairing of four condensing lenses.

(Example 7)

Next, the solar light collecting apparatus of the seventh embodiment of the present invention will be described with reference to FIG.

Unlike the first to sixth embodiments, the present embodiment guides the light guide device to focus only one side of the light.

That is, the sunlight focused by the plurality of condenser lenses 21 is aligned in parallel light by the collimator 211, which is directed to the side condensing member 30 ′ as a guide device positioned below the condenser 20a. This causes the light to be condensed to the right in the drawing.

The side light collecting member 30 ′ has a plurality of focused solar light incident from each of the unit light collecting modules 21 to the side, and a reflector 31 for condensing the light is formed in a stepwise manner, that is, the collimator. The focused parallel light released at 211 is guided to the right by the reflecting portion 31 of the side light collecting member 30 ', and the guided parallel light is collected at the right end of the side light collecting member 30'. It is then incident on a photovoltaic device such as a solar cell.

On the other hand, Figure 11 is a modification of the embodiment of Figure 7 replaced with a concave mirror (20b) instead of a convex lens as a condensing means for focusing sunlight primarily. Naturally, the side light collecting member 30 'should be located above the light collecting portion, and also the sunlight 11 is reflected by the mirror reflection layer 21b of the concave mirror, and collimated by a collimator 211 such as a convex lens. Parallel light is reflected by the reflecting surface 211 and collected by the solar device (not shown) on the right side.

12 shows another modified example of the seventh embodiment, the side light collecting member 30 'in the present embodiment is made of an opaque material, in which case sunlight does not pass through the opaque material. Therefore, the reflective part 31 formed in a stepped manner may be turned upside down to face the linear back light guide part 22 on the bottom surface of the light converging part 20a.

(Modification of collimator)

Now, modifications of various collimators other than the convex lens will be described with reference to FIGS. 13 to 16.

First, instead of the convex lens surface 211 ′ of FIG. 2B, a collimation method using a concave lens surface 211 ″ is shown in FIG. 13. In the collimation method using a concave lens surface, the concave lens surface is focused. It should be readily understood by one skilled in the art that the distance to be within a reasonable distance should be within the skill of the art.

Subsequently, a method using a Fresnel lens as a collimator is shown in FIG. 14. The configuration in which the Fresnel lens replaces the convex lens is also described in the third embodiment of FIG. 6, and thus further description thereof is omitted. do.

Also shown in FIG. 15 is another collimator, a collimation groove 30b0 is formed under the primary condenser lens, and a linear convex lens 30b1 formed in a hemispherical shape with a linear collimator (collimator) is formed at an inner bottom thereof. In general, it is well known that light passing through a convex lens and passing through a focal line forms parallel light by another convex lens.

Such a linear collimator (collimator) includes a linear aspherical convex lens and a linear green lens in addition to the linear convex lens 30b1 formed in the hemispherical shape; Any of linear linear fresnel lens, multiple green lens linear array, multiple focused focal convex lens linear array, multiple focused focal aspherical convex lens linear array, multiple focused focal Fresnel lens linear array, optical guide The optical guide may include a rod lens, a one-dimensional array of optical fibers, a one-dimensional linear honeycomb inserted with optical fibers in a line, a fiber optical taper compressing an optical fiber or a linear honeycomb inserted with optical fibers, and a plurality of balls. It can be produced in a lens linear array.

Furthermore, if the linear rod lens 30b2 is further included on the top of the linear convex lens 30b1, the focal length can be further reduced, and the linear rod lens 30b2 includes a rod lens (not shown) and a one-dimensional array of optical fibers (not shown). 1) linear honeycomb (not shown) with optical fibers inserted in a line, fiber optical taper (not shown) with optical fiber or linear honeycomb inserted with optical fibers, and a plurality of ball lens linear arrays (not shown). It may be manufactured as one, and this is generally related to a collimator (collimator) known in optical communication and micro-optics, and a detailed description thereof will be omitted.

Finally, another modified example of FIG. 16 is further described with the convex condenser lens 21a, the concave concave mirror 21b, the Fresnel lens 21c, and the casein / gregregian condensing module 21d and 21e. The second light collecting assembly 24 may further include a one-to-one correspondence.

In this case, as illustrated in FIG. 16A, the second light collecting assembly 24 receives linear light from the linear second light collecting lens 241 and the linear second light collecting lens 241 to emit parallel light. It consists of a collimator 242 and a housing 240 supporting them, and the linear collimator 242 of the ninth embodiment is a linear convex lens 242a. It is generally known that light passing through a convex lens and passing through a focal line forms parallel light by another convex lens.

In addition, as illustrated in FIG. 16B, when the linear collimator 242 is configured by further including a linear rod lens 242b at the top of the linear convex lens 242a, the focal length may be further reduced. The linear rod lens 242b may select any one of silica-based elongated optical fibers (not shown) and cylindrical rod lenses (not shown).

In addition, as shown in FIG. 16C, instead of the linear convex lens 242a, a linear aspherical convex lens (not shown), a linear Fresnel lens (not shown), a linear green lens (not shown), and a plurality of greens. Lens linear array (not shown), linear array of multiple focusing convex lenses (not shown), linear array of multiple focusing aspherical convex lenses (not shown), linear array of multiple focusing fresnel lenses (not shown) ), Any one of the linear light guide 242c can be used.

The linear light guide 242c includes a rod lens (not shown), a one-dimensional array of optical fibers (not shown), a one-dimensional linear honeycomb (not shown) with optical fibers inserted in a line, an optical fiber or a linear honeycomb with an optical fiber inserted therein. Compressed fiber optical taper (not shown), a plurality of ball lens linear array (not shown) can be made of any, which is generally related to collimators (collimators) known in optical communication and micro-optics Detailed description will be omitted.

(Modification example of condenser lens)

Finally, the condenser lens 21 is most commonly used with a long rod-shaped convex lens having a parabolic mirror surface on one side as shown in FIG. 1, but as shown in FIG. 17, the hemispherical convex lenses are arranged in a row. It is also possible to use.

In this case, since the focused light 11b emitted toward the unit linear collimator corresponding to the unit light collecting member has a dot shape, condensing the light to the side surface simply by forming a light exiting portion 31 'having a spot size at the corresponding position. In this case, as shown in FIG. 17, the light condensed to the side is not condensed linear linear light, but the condensed light 11b having a predetermined distance apart is condensed to the side in a linear arrangement. do.

Accordingly, as shown in FIG. 17, another second prism light guide 1 ′ is disposed at a corresponding position on the side surface, and the light entering and exiting portion 31 ′ is disposed at a predetermined position of each of the point-shaped focused light 11 b collected at the side surface. ) And bend vertically so as to be incident from the end of the first prism light guide 1 to the light entering part 31 'of the second prism light guide 1', the front end of the second prism light guide 1 '. Without the unit linear light collecting member and the unit linear collimator, the light is finally collected in the point form 11c. In this structure, light condensing is highly performed and manufacturing cost can be drastically reduced and will be easily understood by those skilled in the art.

Accordingly, when such a structure is used for solar condensation, which is a kind of light, it is not necessary to install a solar cell so as to correspond to one unit convex lens (or Fresnel lens) that focuses the sunlight incident to the front, without having to install a solar cell. Installing a high-efficiency solar cell at a highly concentrated photovoltaic (11c) location can greatly increase its power generation efficiency, and dramatically reduce the number and required area of solar cells. It can be used at the same time, and if it includes an electric rotating mirror at the end, it can use natural light and high efficiency solar cell selectively, and it is very convenient and applicable. It is an innovative structure that can be used at the same time, which will be easily understood by those skilled in the art.

Particularly, in the embodiment of FIG. 17, when the condenser lens is a solar light lens, sunlight is condensed regardless of the azimuth or altitude of the sun. There is an additional advantage that efficient mining is possible without using a separate chase.

As such, one embodiment of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

According to the present invention, it is possible to maximize the solar energy utilization efficiency by effectively condensing the sunlight incident on a large area, and is simple in structure and easy to manufacture and install, and is flat and thin, not bulky, and the manufacturing cost is further increased. Inexpensive effect can be obtained.

Claims (20)

1. A solar collector configured to focus incident sunlight;

   Two or more light concentrators that focus incident sunlight;

   Two or more collimators which emit focused light condensed at each condenser of the two or more condensers as parallel light; And

   A guide unit for guiding focused parallel light emitted from the two or more collimators;

   Including;

   And the guide part meets an end portion of the guide part for guiding the focused parallel light emitted from the two or more collimators, and condenses the primary focused parallel light from the two or more light collecting parts in a secondary manner.
2. The method of claim 1,

   The guide unit is a solar light collector, characterized in that consisting of a total reflection prism for guiding the primary focused parallel light transmitted from the collimator horizontally to the left and right to emit in the vertical direction.
3. The method of claim 2,

   The guide unit may further include a vertical guide unit configured to vertically transmit vertically the sunlight transmitted from the horizontal guide unit, to collect the primary focused parallel light from four or more condensing units in a secondary manner. Light condenser.
4. The method of claim 1,

   And a corresponding solid concentrator collimating condensing module in which the condenser and the collimator are integrally formed, respectively.
5. The method of claim 3, wherein

   The light collecting unit further comprises a child collimation condensing module for condensing sunlight transmitted from the vertical guide portion to reduce the width of the sunlight transmitted to the horizontal guide portion of the upper prism sheet and emitting parallel sunlight. Light condenser.
6. The method of claim 1,

   The condenser is formed of a concave mirror, and the collimator is located near the focal point of the concave mirror, the solar concentrator, characterized in that to output the first focused light as parallel light.
7. The method of claim 1,

   The guide part is a solar light collector, characterized in that formed by two or more reflective mirrors.
8. The method of claim 1,

   The reflector of the guide unit is a solar light collector, characterized in that formed in the groove of a right isosceles triangle or inverted V-shape.
9. The method of claim 1,

   The guide part is a solar light collector, characterized in that consisting of a side light collecting member having a step of two or more reflecting portions for horizontally reflecting the horizontally focused first and second parallel light received from the collimator.
10. The method of claim 1,

    The collimator is a linear array of a convex condenser lens or a focal convex condenser lens having a convex shape on the upper side, concave to the bottom and a mirror reflective layer is formed on the back side, but no concave mirror condenser lens or a focus concave mirror condenser on the back Linear array of lens, Fresnel condenser lens or focal focus Fresnel condenser lens, and the case of primary case mirror and casee side mirror with reflection layer formed on both sides except the center surface. Linear array of casein condensing lens or focal focus lens, or Gregorian condensing lens or focusing Gregorian condensing which can focus the sun through Gregorian main mirror and Gregorian sub-reflecting mirror with reflective layers on both sides except center Words selected from the group consisting of linear arrays of lenses Solar light collector, characterized in that one.
11. The method of claim 1,

    The collimator may include a linear convex lens; Linear aspherical convex lens; Linear green lens; Linear Fresnel lens; Multiple green lens linear arrays; Linear arrays of multiple focal convex lenses; Linear arrays of multiple focal aspherical convex lenses; A solar light collector, characterized in that any one selected from the group consisting of a linear array of a plurality of focus-focus Fresnel lens.
12. The method of claim 1,

    The prism or the light collecting portion as the guide member is any one selected from the group consisting of a plastic material having an ultraviolet blocking layer, a plastic made of an ultraviolet blocking monomer, tempered glass, pyrex, and quartz glass as a transparent material having a greater refractive index than air. Solar collector.
13. The method of claim 3, wherein

    The vertical guide portion is formed to correspond to the interface of the collimator to totally reflect the incident light downward, or formed to correspond to the initial photovoltaic incidence site, the focused solar light is focused again by the collimator together with the original sunlight. Solar collector.
14. The method of claim 1,

    Reflecting layer is formed on the reflecting surface of the horizontal guide portion and the vertical guide portion to increase the total reflectance, the reflecting layer is a solar light collector characterized in that the coating is formed of any one selected from aluminum, silver, gold, nickel, stainless steel
15. The method of claim 1,

    The collimator is a solar light collector, characterized in that the collimation groove (30b0) is formed in the lower portion of the light collecting portion, and the linear convex lens (30b1) formed in a hemispherical shape as a linear collimator at the lower end thereof.
16. The method of claim 15,

    Solar condenser further comprises a linear rod lens (30b2) on the top of the linear convex lens (30b1).
17. The method of claim 1,

    And a second condensing assembly for further condensing and collimating secondary condensed light.
18. The method of claim 1,

    And said light collecting portion is arranged by arranging hemispherical convex lenses in a row.
19. The method of claim 18,

    The solar concentrator of the hemispherical convex lens is made of a solar light lens, so that the light can be collected without a chase device even if the azimuth and altitude of the sun are changed.
20. The method of claim 1,

    The solar light collector of claim 2, wherein the linear parallel light focused from the guide unit to focus again to focus on a third point as a point light source.

Images