WO2001015811A1

WO2001015811A1 - Air cleaner

Info

Publication number: WO2001015811A1
Application number: PCT/JP2000/005697
Authority: WO
Inventors: Tetsuro Ozawa
Original assignee: Toshiba Carrier Corporation
Priority date: 1999-08-30
Filing date: 2000-08-24
Publication date: 2001-03-08
Also published as: KR20020021414A; AU6728600A; JP4294807B2; JP2001062340A; CN1217742C; KR100472570B1; CN1371306A

Abstract

An air cleaner comprises a grounding electrode (51) of sheet metal on the charger side and a grounding electrode (49) on the dust-collecting side, which consists of a conductive resin mold formed separately from the grounding electrode (51). The grounding electrode on the charger side is opposed to a high-voltage electrode on the charger side, while the grounding electrode on the dust-collecting side is opposed to a high-voltage electrode (41) on the dust-collecting side. Since there is no need to metalize a resin mold to form grounding electrodes, the cost of manufacture can be reduced.

Description

Description Air Purifier Technical Field

The present invention relates to an air purifier having an improved configuration of ground components on a dust collecting side and a charging side. Background art

Conventionally, for example, components on the ground side of an air purifier mounted on an air conditioner are configured as shown in FIG. 5 and FIG. That is, the air purifier 1 has a lower frame 11, and the grounding component 13 is mounted on the lower frame 11. In the grounding part 13, the charging side grounding part 15 and the dust collecting side grounding part 17 are integrally formed as a resin molded product, and a metal plating is applied to the surface. A charging-side high-voltage electrode 19 is disposed between the plurality of charging-side grounding parts 15 arranged in parallel with each other. The charging-side high-voltage electrode 19 and the charging-side grounding part 15 are connected to each other in the air. A charge-side electrode 21 for applying a charge to the dust is formed. A dust-collecting high-voltage electrode 23 is disposed between the dust-collecting source components 17 arranged in parallel with each other, and the dust-collecting high-voltage electrode 23 and the dust-collecting grounding component are arranged. 17 constitutes the dust collection side electrode 25. Then, a charge is given to the dust in the air by the charging-side electrode 21, and then the charged dust is attracted by the dust-collecting electrode 25 to remove the dust.

However, although such a ground-side part 13 of the conventional air purifier can be formed integrally, there has been a problem that a metal plating must be performed on a molded resin part, which increases the cost.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an air purifier that can reduce costs while maintaining the same performance. Disclosure of the invention

The invention according to claim 1 includes a charging-side grounding part made of sheet metal, And a dust collecting side grounding part formed of a conductive resin molded product and formed separately from the side grounding part.

The invention according to claim 2 is characterized in that fixing means for fixing the charging-side grounding component and the dust-collecting-side grounding component are provided.

The invention according to claim 3 is characterized in that the fixing means fixes the position of the charging-side grounding part and the dust collecting-side grounding part in the direction of the air flow path, and the direction perpendicular to the air flow path of the charging-side grounding part. The fixing of the direction is performed by a fixing means between the frame and the frame.

The invention according to claim 4 is characterized in that the charging-side grounding component includes a sheet metal main body, an electrode portion cut and raised from the sheet metal main body, and an air passage opening cut and raised from the sheet metal main body to form an opening. It is characterized by having.

The invention according to claim 5 is characterized in that the charging-side grounding part is formed integrally with the left and right sides, and the dust-collecting side grounding part is formed separately on the left and right sides.

The invention according to claim 6 is characterized in that the charging-side high-voltage electrode disposed facing the electrode portion of the charging-side grounding component, and the dust-collecting-side high-voltage disposed facing the dust-collecting-side grounding component. And an electrode.

In the invention according to claim 7, the charging-side grounding component includes two superposed sheet metal parts, and the sheet metal parts include a sheet metal main body, an electrode portion cut and raised from the sheet metal main body, and a sheet metal main body. And an air passage opening that is cut and raised to form an opening. One of the sheet metal parts is connected to the other sheet metal part, and the other sheet metal part is connected to the other sheet metal part from the air passage opening of the one sheet metal part. It is characterized by being overlapped so that the electrode portions protrude. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing an assembly of an air purifier mounted on an air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where parts of the air purifier shown in FIG. 1 are partially assembled.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing a state before the charging-side ground electrode shown in FIG. 3 is assembled. FIG. 5 is a cross-sectional view showing a structure of an air purifier mounted on a conventional air conditioner. FIG. 6 is a perspective view showing the structure of a conventional air purifier. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows the assembly of an air purifier 31 mounted on an air conditioner. This air purifier 31 has a lower frame 33. The lower frame 33 is formed in a substantially rectangular shape, and two fitting windows 35 are provided at left and right. Out of the side walls of these fitting windows 35, the side walls extending in the width direction of the lower frame 33 are provided with first locking claws 37, 37 at two places per one side wall. ing.

On the fitting window 35, left and right divided dust collecting side high voltage electrodes 41, 41 are fitted and mounted respectively. The collection-side high-voltage electrode 41 is made of a conductive resin molded product, and a number of plate-like electrode plates 43 are arranged in parallel with the width direction of the lower frame 33. Then, of the electrode plates, the electrode plate 45 located on the outside in the longitudinal direction is engaged with the first locking claw 37, and the dust collecting side high voltage electrode 41 is fixed to the lower frame 33. It is.

A ground electrode 47 is mounted on the two dust-collecting-side high-voltage electrodes 41, 41. The ground electrode 47 has left and right divided dust-collecting ground electrodes 49 and 49 and a charging-side ground electrode 51 integrally formed on the left and right sides.

The collection-side earth electrode 49 is made of a conductive resin molded product, and is arranged in the width direction in which a large number of plate-shaped electrode plates 53 extend. The dust-collecting side ground electrode 49 has two second locking claws 55, 55 on each side wall parallel to the width direction. The second locking claw 55 is for fixing a charging-side ground electrode 51 described later.

The charging-side grounding electrodes 51 are mounted on the two dust-collecting-side grounding electrodes 49, 49 provided on the left and right. The charging-side ground electrode 51 is formed integrally with the left and right sides. The charging-side ground electrode 51 has a sheet metal main body 56, and a large number of plate-like electrode plates 57 are arranged in the longitudinal direction by cutting and raising the sheet metal. In addition, the cut and raised part becomes openings 59, ... to allow air to be conditioned or purified. It is like that. The charging-side ground electrode 51 has an engagement notch 61 at the center of the side wall extending in the width direction. On the other hand, the lower frame 33 is provided with a T-shaped engagement projection 63 fitted in the engagement notch 61 and having a T-shape in plan view. Further, the charging-side ground electrode 51 has a ground terminal 65 at one end of a side wall extending in the width direction, while the lower frame 33 has a ground terminal for connecting the ground terminal 65. Contacts 67 are provided.

Such a charging-side ground electrode 51 is vertically fixed by locking the edge of the opening 59 to the second locking claw 55 of the dust collecting-side ground electrode 49. The charging-side ground electrode 51 can be positioned horizontally with respect to the lower frame 33 by engaging the engagement notch 61 with the T-shaped projection 63 of the lower frame 33. Has become. As described above, the vertical fixing of the charging-side ground electrode and the dust-collecting-side ground electrode is performed by locking the second locking claw 55 to the edge of the opening 59. Can realize a strong connection to ensure electrical connection. Further, the fixing between the second locking claw 55 and the edge of the opening 59 is not restricted to the positional relationship in the horizontal direction. On the other hand, the charging-side ground electrode 51 engages the engagement notch 61 with the T-shaped projection 63 of the lower frame 33. Therefore, the position in the horizontal direction with respect to the lower frame 33 can be accurately determined, and the mounting accuracy can be improved.

In a fixed state, the ground terminal 65 of the charging-side ground electrode 51 is pressed by the ground contact 67 on the lower frame 33 side to be electrically connected.

An upper frame 69 is mounted on the charging-side ground terminal 51. This upper frame

6 9 is a charging-side high-voltage electrode consisting of a conducting wire stretched in the longitudinal direction of the frame on the back side

70. When the upper frame 69 is mounted on the lower frame 33, the charging-side high-voltage electrode 70 is provided with a plurality of electrode plates 5 7 of the charging-side ground electrode 5 1 at the position shown by the two-dot chain line in FIG. ,… Is located between. The charging-side high-voltage electrode 70, together with the charging-side ground electrode 51, forms a charging-side electrode.

In such an air purifier 31, first, the dust-collecting-side high-voltage electrode 41 is fixed to the lower frame 33, the dust-collecting-side ground electrode 49 is fixed to the charging-side ground electrode 51, and then the ground electrode 4 is fixed. 7 and the upper frame 69 are fixed to the lower frame 33 to be assembled. In this way, this air purifier 31 divides the ground electrode into the charging-side ground electrode and the dust-collecting-side ground electrode, the charging-side ground electrode is made of sheet metal, and the dust-collecting-side ground electrode is made of a conductive resin molded product. With this configuration, there is no need to apply metal plating to the resin, and cost can be reduced. In addition, the second locking claw 55 is fixed to the edge of the opening 59 of the charging-side ground electrode 51 so that the charging-side ground electrode 51 and the dust-collecting-side ground electrode 49 are fixed vertically. Therefore, the electrical contact area is increased, and the electrical connection can be ensured. Furthermore, the charging-side ground electrode and the dust-collecting-side ground electrode are fixed only in the thickness direction, and the horizontal fixing means is provided between the frame and the body.This prevents the accumulation of dimensional errors and accurately integrates each part. Can be. In addition, the dust electrode on the dust collection side is divided into two parts on the left and right, and the ground electrode on the charging side is integrated into the left and right parts, so cost reduction can be achieved without lowering the precision on the dust collection side, which requires precision. it can. 3 and 4 are diagrams showing another embodiment of the charging-side ground electrode.

The charging-side ground electrode 71 shown in Fig. 3 is obtained by superposing two electrodes made of sheet metal, and Fig. 4 shows the lower electrode 73 and the upper electrode 75 separately. FIG. The lower electrode 73 has a sheet metal body 76 in the same manner as the charging-side ground electrode 51, and a large number of plate-like electrode plates 77 are arranged in parallel with the longitudinal direction by cutting and raising the sheet metal. Have been. The cut and raised portions become openings 79,... To allow air to be air-conditioned or purified. The distance between the electrode plates 77 of the lower electrode 73 is set to be about twice the distance between the electrode plates 57 of the charging-side ground electrode 51. On the other hand, the upper electrode 75 is basically formed in a target shape with the lower electrode 73. That is, the electrode plate 81 and the opening 83 are formed by cutting and raising the sheet metal main body 80.

The upper electrode 75 is fixed to the lower electrode such that the electrode plate 81 is located between the electrode plates 77 of the lower electrode 73 as shown in FIG. 7 Make up 1.

By doing so, the distance between the electrode plates in the upper electrode or the lower electrode can be doubled, and therefore, the rising height of the cut and raised electrode plate can be doubled. Therefore, the length of the electrode plate in the air flow direction can be increased, and the charging efficiency for dust can be improved. According to the present invention, since a charging-side grounding part made of a sheet metal and a dust-collecting-side grounding part formed of a conductive resin molded article formed separately from the charging-side grounding part are provided, the molded resin is formed. There is no need to perform metal plating on the parts, and costs can be reduced.

Claims

WO 01 ノ 15811 PCT / JPOO / 05697 7 Claims

1. An air purifier comprising: a charging-side grounding part made of sheet metal; and a dust-collecting-side grounding part formed separately from the charging-side grounding part and formed of a conductive resin molded product.

2. The air cleaner according to claim 1, further comprising fixing means for fixing the charging-side grounding component and the dust-collecting-side grounding component.

3. The fixing means fixes the position of the charging-side grounding component and the dust collection-side grounding component in the direction of the air flow path, and the position of the charging-side grounding component in the direction perpendicular to the air flow path is fixed to a frame. 3. The air purifier according to claim 2, wherein the air purifier is performed by a fixing means between the body and the body.

4. The charging-side grounding component includes a sheet metal main body, an electrode portion cut and raised from the sheet metal main body, and an air passage opening cut and raised from the sheet metal main body to form an opening. The air purifier according to claim 1, characterized in that:

5. The air cleaner according to claim 1, wherein the charging-side grounding part is formed integrally with the left and right sides, and the dust-collecting side grounding part is formed separately on the left and right sides.

6. It further comprises a high-voltage electrode on the charging side disposed opposite to the electrode portion of the grounding component on the charging side, and a high-voltage electrode on the collecting side disposed opposite to the grounding component on the dust collecting side. 5. The air purifier according to claim 4, wherein:

7. The charging-side grounding component includes two superposed sheet metal parts, and the sheet metal parts are a sheet metal main body, an electrode portion cut and raised from the sheet metal main body, and a cut and raised part of the sheet metal main body. And an air passage opening which is an WO 01/15811 PCT / JPO0 / OS697

The one of the eight parts is superimposed on the other sheet metal part so that the electrode part of the other sheet metal part protrudes from the air passage opening of the one sheet metal part. An air purifier according to paragraph 1 above.