US20110061403A1 - Heating and cooling system for vehicle seat - Google Patents
Heating and cooling system for vehicle seat Download PDFInfo
- Publication number
- US20110061403A1 US20110061403A1 US12/879,897 US87989710A US2011061403A1 US 20110061403 A1 US20110061403 A1 US 20110061403A1 US 87989710 A US87989710 A US 87989710A US 2011061403 A1 US2011061403 A1 US 2011061403A1
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- United States
- Prior art keywords
- seat
- heating
- heat exchanger
- element assembly
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 97
- 238000001816 cooling Methods 0.000 title claims abstract description 88
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 210000001217 buttock Anatomy 0.000 description 2
- 240000008574 Capsicum frutescens Species 0.000 description 1
- 206010027627 Miliaria Diseases 0.000 description 1
- 230000005679 Peltier effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
- B60N2/5692—Refrigerating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
Definitions
- the present invention relates to a heating and cooling system for a vehicle seat, and more particularly, to one which can enhance power efficiency by efficiently cooling and heating the vehicle seat.
- a vehicle is equipped with an air-conditioning system including a cooler and a heater.
- the air-conditioning system serves to control the temperature inside the vehicle.
- the air-conditioning system does not have a function of controlling the temperature of a vehicle seat. In the summer, even if an occupant sitting on a vehicle seat lowers the temperature inside the vehicle by operating the cooler, the seat is relatively slowly cooled down. In addition, the seat is continuously warmed by the body heat of the occupant. Then, the occupant may sweat at the buttocks and the back, which would otherwise develop into heat rashes.
- a seat-dedicated heating and cooling system which is designed to control the temperature of the seat.
- a thermoelectric element based on Peltier effect as a heat source.
- the vehicle seat In a conventional heating and cooling system for a vehicle seat using a thermoelectric element as a heat source, the vehicle seat has a porous structure or air passages through which air can freely flow.
- the heating and cooling system controls the temperature of the seat by blowing air, heated or cooled by the thermoelectric element, to the seat.
- the heating and cooling system is configured to heat or cool air using only the thermoelectric element.
- the problem of the thermoelectric element is that the efficiency of a heating part is about 50% of that of a cooling part under the same power supply conditions.
- thermoelectric element The problem is not significant in the case of cooling the seat using the thermoelectric element.
- the low efficiency of the heating part of the thermoelectric element increases power consumption, thereby lowering the efficiency of the heating and cooling system.
- Various aspects of the present invention are directed to provide a heating and cooling system for a vehicle seat, in which can ensure improvement in power efficiency and heating performance in the case of heating the vehicle seat.
- the heating and cooling system for a vehicle seat may include a heat exchanger cooling or heating air before the air is introduced into the seat, and a blower blowing air toward the heat exchanger, wherein the heat exchanger includes a positive temperature coefficient element assembly provided inside a housing of the heat exchanger to heat the air supplied from the blower, and wherein the positive temperature coefficient element assembly operates in a case of heating the seat but does not operate in a case of cooling the seat.
- the heat exchanger and the blower may be connected to each other by a duct, and the heat exchanger is detachably attached to the duct.
- the housing may be an integral housing enclosing the blower and the heat exchanger therein, wherein the heat exchanger is disposed in an output port of the integral housing and the positive temperature coefficient element assembly and the Peltier element assembly of the heat exchanger are aligned in series along a longitudinal direction of the output port, and wherein one or more of the integral housings are provided in one or more of a sitting part and a back of the seat.
- the heating and cooling system may include two of the heat exchangers coupled to both ends of the blower, wherein one or more of the heat exchangers are provided in one or more of a sitting part and a back of the seat.
- the heating and cooling system for a vehicle seat may include a heat exchanger cooling or heating air before the air is introduced into the seat, and a blower blowing air toward the heat exchanger, wherein the heat exchanger includes: a positive temperature coefficient element assembly provided inside a housing of the heat exchanger to heat the air supplied from the blower, and a Peltier element assembly provided adjacent to the positive temperature coefficient element assembly to cool or heat air supplied from the blower, wherein the positive temperature coefficient element assembly operates in a case of heating the seat, and the Peltier element assembly operates in a case of cooling or heating the seat.
- the housing of the heat exchanger may have a seat inlet passage, through which cooled or heated air in the housing is introduced toward the seat, and an outlet passage, through which air in the housing is exhausted from the seat, wherein the housing further has a partition forming a boundary between the seat inlet passage and the outlet passage, and the Peltier element assembly is arranged to extend from the partition toward an entrance of the housing to guide air into the seat inlet passage and the outlet passage respectively.
- the housing may further have an entrance-side partition provided in an entrance area of the housing and extending from the Peltier element assembly toward the entrance to prevent air heat-controlled by the Peltier element assembly and air heat-controlled by the Peltier element assembly from being mixed with each other, and the positive temperature coefficient element assembly is arranged along one lateral side of the entrance-side partition and is located in a passage leading to the seat inlet passage.
- the positive temperature coefficient element assembly may be located more adjacent to the blower than the Peltier element assembly is, and the positive temperature coefficient element assembly selectively operates to evaporate condensed water, which is produced due to the Peltier element assembly, in case of cooling the seat.
- the positive temperature coefficient element assembly may be arranged in series from the Peltier element assembly toward the entrance of the housing and the heating and cooling system may further include heat sink fins attached to one lateral side of the Peltier element assembly, which faces the seat inlet passage.
- the heating and cooling system may further include heat sink fins attached to both sides of the Peltier element assembly and the positive temperature coefficient element assembly.
- the eat exchanger and the blower may be connected to each other by a duct, and the heat exchanger is detachably attached to the duct.
- the housing may be an integral housing enclosing the blower and the heat exchanger therein, wherein the heat exchanger is disposed in an output port of the integral housing and the positive temperature coefficient element assembly and the Peltier element assembly of the heat exchanger are aligned in series along a longitudinal direction of the output port, and wherein one or more of the integral housings are provided in one or more of a sitting part and a back of the seat.
- the heating and cooling system may include two of the heat exchangers coupled to both ends of the blower, wherein one or more of the heat exchangers are provided in one or more of a sitting part and a back of the seat.
- the heating and cooling system for a vehicle seat has the following effects:
- the efficiency of the heater can be raised when compared to the conventional heating using the Peltier element. Accordingly, the heating of the vehicle seat and the power efficiency can be improved.
- FIG. 1 is a schematic configuration view showing an exemplary heating and cooling system for a vehicle seat of the present invention.
- FIG. 2 is a perspective view showing important parts of the exemplary heating and cooling system for a vehicle seat shown in FIG. 1 .
- FIG. 3 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention.
- FIG. 4 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention.
- FIG. 5 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention.
- FIG. 6 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention.
- FIG. 7 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention.
- FIG. 8 is a side cross-sectional view showing a sixth exemplary embodiment of the heating and cooling system for a vehicle seat of the invention.
- FIG. 9 is a perspective view showing important parts of the heating and cooling system for the vehicle seat shown in FIG. 8 .
- FIG. 1 is a schematic configuration view showing a heating and cooling system for a vehicle seat of the present invention
- FIG. 2 is a perspective view showing important parts of the heating and cooling system for a vehicle seat shown in FIG. 1
- FIG. 3 is a side cross-sectional view showing a heat exchanger in accordance with a first exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention.
- the heating and cooling system 1 for a vehicle seat of the present exemplary embodiment is provided in the rear side of a vehicle seat S, and supplies air into the seat S by heating or cooling it.
- the seat S includes a sitting part S 1 and a back S 2 .
- the sitting part S 1 and the back S 2 has a number of pores such that air, supplied from the heating and seating system 1 , can uniformly spread across the seat S.
- the heating and cooling system 1 for a vehicle seat includes two heat exchangers 10 and 20 , a blower 30 , and ducts 41 and 42 .
- the heat exchanger 10 is provided inside the rear side of the back S 2 of the seat S
- the heat exchanger 20 is provided inside the rear side of the sitting part S 1 of the seat S.
- the heat exchangers 10 and 20 heat or cool air, which is directed toward the pores of the seat S.
- the blower 30 blows air toward the heat exchangers 10 and 20 .
- the ducts 41 and 42 connect the blower 30 with the heat exchangers 10 and 20 , respectively.
- the heat exchanger 10 and 20 perform heat exchange in order to convert air, supplied from the blower 30 , is into cold or warm air.
- the heat exchangers 10 and 20 include the first heat exchanger 10 , which is provided in the rear side of the back S 2 to supply cold or warm air to the back S 2 , and the second heat exchanger 20 , which is provided in the rear side of the sitting part S 1 to supply cold or warm air to the sitting part S 1 .
- the heat exchangers 10 and 20 are connected to the blower 30 by the first duct 41 and the second duct 42 , respectively.
- the ducts 41 and 42 serve as passages that deliver air, blown by the blower 30 , to the heat exchangers 10 and 20 , respectively.
- the ducts 41 and 42 and the heat exchangers 10 and 20 can be provided so as to be attachable to and detachable from each other.
- the blower 30 supplies wind to the heat exchangers 10 and 20 through the ducts 41 and 42 by taking in air from outside.
- a fan which operates when electric power is supplied, is provided inside the blower 30 to generate a flow of air.
- an air intake port from which air is introduced from outside, can be formed in one side of the blower 30 , and an air blowing port communicating with the respective ducts 41 and 42 can be formed in the other side of the blower 30 .
- the first heat exchanger 10 is connected with the first duct 41 to supply wind, blown from the blower 30 , to the back S 2 by heating or cooling it.
- a heater and a cooler are provided inside the first heat exchanger 10 in order to heat and cool air, which is supplied from the blower 30 .
- the first heat exchanger 10 includes a housing 11 defining the outline of the first heat exchanger 10 , a seat inlet passage A through which air heat-exchanged inside the housing 11 is introduced into the back S 2 of the seat S, and an outlet passage B through which air is exhausted from the seat S.
- the seat inlet passage A forms one passage inside the housing 11 , and the distal end of the passage defines a seat inlet port 11 a , through which air is supplied into the pores of the seat S.
- the outlet passage B is located adjacent to the seat inlet passage A, forming a passage through which air is exhausted.
- the distal end of the outlet passage B defines an outlet port 11 b .
- Another connector such as a duct can be connected to the outlet port 11 b such that air exhausted through the outlet port 11 b does not flow back into the seat S.
- the second heat exchanger 20 is for introducing air, which is heated or cooled down, into the sitting part S 1 of the seat S. Except for this feature, the second heat exchanger 20 has substantially the same function and structure as the first heat exchanger 10 .
- the most important feature of the present invention is that the heater and the cooler are provided in the first heat exchanger 10 and in the second heat exchanger 20 , respectively, in order to heat and cool air to be supplied into the seat S.
- a Peltier element 13 is used as a main cooler, and a Positive Temperature Coefficient (PTC) element 16 is used as a heater.
- PTC Positive Temperature Coefficient
- one side of the Peltier element 13 which is heated, and one group of heat sink fins 14 adjacent thereto serve as a heater.
- the other side of the Peltier element 13 which is cooled, and the other group of the heat sink fins 14 adjacent thereto serve as a cooler.
- the PTC element is a semiconductor element that experiences a rapid increase in electrical resistance at a temperature equal to or more than Curie temperature.
- the PTC element has a self-temperature control function that maintains a constant heating temperature regardless of surrounding temperature when a voltage is applied.
- the heat sink fins 14 are attached to both sides of the Peltier element 13 in a heat conductive structure, thereby constructing a Peltier element assembly 12 .
- the heat sink fins 14 are constructed to maximize the contact area between heat or cold air created by the Peltier element 13 and air flowing inside the heat exchanger 10 .
- heat sink fins 17 are also attached to both sides of the PTC element 16 , thereby producing a PTC element assembly 15 .
- the heat sink fins 17 raise the heat exchange efficiency between heat generated by the PCT element 16 and air flowing inside the heat exchanger 10 .
- heat sink fins 14 and 17 are shaped as corrugated plates, they can be modified into fin shapes.
- the heat sink fins 14 and 17 can have any shape that allows air to come into contact with the heat sink fins 14 and 17 while flowing inside the heat exchanger 10 .
- the housing 11 also has a partition 11 d defining the boundary between the seat inlet passage A and the outlet passage B, and the Peltier element 13 extends in the longitudinal direction of the partition 11 d .
- the Peltier element 13 is oriented such that one side faces the seat inlet passage A and the other side faces the outlet passage B. Accordingly, the opposite sides of the Peltier element 13 form the boundary of the seat inlet passage A and the boundary of the outlet passage B.
- An entrance-side partition 11 d which extends from the Peltier element 13 , is also provided adjacent to an entrance 11 c of the housing 11 .
- the entrance-side partition 11 d further separates the seat inlet passage A from the outlet passage B so that air heated by the Peltier element 13 and air cooled by the Peltier element 13 are not mixed with each other inside the housing 11 .
- the PTC element assembly 15 is arranged along one side of the entrance-side partition 11 d and is located inside the seat inlet passage A.
- the seat inlet passage A extends from the area of the entrance 11 c of the housing 11 to the seat inlet port 11 a or 21 a.
- the PTC element assembly 15 generates only heat unlike the Peltier element assembly 12 . Thus, it is not necessary to exhaust air, heated by the PTC element assembly 15 , through the outlet port 11 b or 21 b while the seat S is being heated.
- a controller of the vehicle controls the heating and cooling system 1 so that the Peltier element 13 operates but the PTC element 16 does not operate.
- the Peltier element 13 When a current is applied to the Peltier element 13 , one side of the Peltier element 13 adjacent to the seat inlet port 11 a is cooled down and the other side of the Peltier element 13 adjacent to the outlet port 11 b is heated. At the same time, the heat sink fins 14 in contact with the Peltier element 13 are cooled or heated according to their position and perform heat exchange with air, which flows inside the heat exchanger 10 .
- Air performs heat exchange with the cooler of the Peltier element assembly 12 while it is flowing along the passage A, which extends from the entrance 11 c of the heat exchanger 10 to the seat inlet port 11 a .
- cooled air is supplied to the seat S.
- air performs heat exchange with the heater of the Peltier element assembly 12 while it is flowing along the passage B, which extends from the entrance 11 c of the heat exchanger 10 to the outlet port 11 b .
- heated air is exhausted from the seat S through outlet port 11 b.
- the controller of the vehicle controls the heating and cooling system 1 so that the PTC element 16 operates but the Peltier element 13 does not operate.
- the PTC element 16 When a current is applied to the PTC element 16 , the PTC element 16 is heated and the heat sink fins 17 in contact with the PTC element 16 are heated along with the PTC element 16 so as to perform heat exchange with air introduced into the heat exchanger 10 . Since the PTC element assembly 15 is located in the passage A, which extends from the entrance of the heat exchanger 10 to the seat inlet port 11 a , the PTC element assembly 15 heats only a portion of air, which is exhausted to the seat inlet port 11 a , when the air is introduced into the heat exchanger 10 . In contrast, the remaining portion of the air simply passes through the heat exchanger 10 without heat exchange, and is then exhausted to the outlet port 11 b.
- the Peltier element 13 cools air in the case of attempting to supply cold air to the seat S, and the PTC element 16 having excellent power efficiency heats air in the case of attempting to supply warm air to the seat S. This, as a result, makes it possible to improve heating and cooling efficiency as well as to raise power efficiency.
- FIG. 4 is a side cross-sectional view showing a heat exchanger in accordance with a second exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention.
- the present exemplary embodiment will be described mainly with reference to the parts different from those of the foregoing embodiment.
- a heat exchanger 10 a of the present exemplary embodiment does not include the entrance-side partition 11 d (see FIG. 3 ), but a PTC element 16 a further extends in the longitudinal direction of a Peltier element 13 .
- PTC element 16 a is located more adjacent to an entrance 11 c , that is, the blower 30 .
- heat sink fins 14 and 17 a are attached to both sides of the Peltier element 13 and the PTC element 16 a , thereby constructing a Peltier element assembly 12 and a PTC element assembly 15 a .
- the PTC element 16 a also forms the boundary between the seat inlet passage A and the outlet passage B. Accordingly, the PTC element 16 a also acts as the entrance-side partition 11 c of the foregoing embodiment.
- the heating and cooling system 1 of the present exemplary embodiment is controlled by a controller of the vehicle so as to operate the Peltier element 13 a without operating the PTC element 16 a.
- the controller of the vehicle controls the heating and cooling system 1 so that the PTC element 16 a operates but the Peltier element 13 a does not operate.
- FIG. 5 is a side cross-sectional view showing a heat exchanger in accordance with a third exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention.
- the present exemplary embodiment will be described mainly with reference to the parts different from those of the foregoing second embodiment.
- heat sink fins 14 a are attached to one side of a Peltier element 13 a , which faces a seat inlet passage A.
- heat sink fins are not attached to the other side of the Peltier element 13 a , which faces an outlet passage B.
- a controller of the vehicle controls the heating and cooling system so that the PTC element 16 a operates but the Peltier element 13 a does not operate. This, as a result, can prevent heat loss, i.e., heat generated by the PTC element 16 a is transmitted to the Peltier element 13 a , from which the heat is exhausted through the outlet passage.
- the heat exchangers 10 , 10 a , and 10 b of the first to third exemplary embodiments can be controlled so that only the Peltier element 13 , 13 a operates in the case of cooling the seat S but both the Peltier element 13 and the PTC element 16 a operate in the case of heating the seat S.
- the heat exchanger can be controlled so that also the PTC element 16 operates to evaporate the condensed water.
- FIG. 6 is a side cross-sectional view showing a heat exchanger in accordance with a fourth exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention.
- the present exemplary embodiment will be described mainly with reference to the parts different from those of the foregoing embodiments.
- a seat inlet port 11 a is formed in a housing 11 but an outlet port is not formed.
- a PTC element assembly 15 a including a PTC element 16 a and heat sink fins 17 a is arranged inside the housing 11 , a Peltier element is not provided.
- the heating and cooling system of the present exemplary embodiment is operated differently from those of the foregoing embodiments, i.e., the PTC element 16 is operated in the case of heating the seat S, but cooling is performed by operating only the blower 30 without operating the PTC element 16 in the case of cooling the seat S.
- FIG. 7 is a side cross-sectional view showing a heat exchanger in accordance with a fifth exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention.
- an integral housing H which encloses a heat exchanger and a blower therein.
- the integral housing H may include an entrance 22 at one side thereof and the positive temperature coefficient element 15 and the Peltier element 12 may be disposed in an output port 24 aligned in series along a longitudinal direction of the output port 24 .
- the foregoing embodiments are realized inside one housing by arranging a blower 30 in the center of the housing and heat exchanging components, including a Peltier element assembly 12 and a PTC element assembly 15 , on both sides of the blower.
- the heating and cooling system of the present exemplary embodiment one simple device can replace complicated components. Accordingly, the heating and cooling system can be easily installed in and separated from the seat, and the maintenance of the heating and cooling system is made easier. It should be understood that the configuration shown in FIG. 7 is only a schematic illustration and the configurations of the foregoing embodiments can be adopted for the heat exchanger unit of the present exemplary embodiment.
- FIG. 8 is a side cross-sectional view showing a sixth exemplary embodiment of the heating and cooling system for a vehicle seat of the invention
- FIG. 9 is a perspective view showing important parts of the heating and cooling system for the vehicle seat shown in FIG. 8 .
- a heat exchanger 10 includes a duct 27 a
- a heat exchanger 20 includes a duct 27 b .
- the ducts 27 a and 27 b introduce air, which is heated or cooled, to the seat.
- a PTC element assembly 15 a which heats air, is mounted on each of the heat exchangers 10 and 20 .
- a housing 110 has an air inlet port 11 a , but an air outlet port is not provided.
- a PTC element assembly 15 a which includes a PTC element 16 a and heat sink fins 17 a , is disposed inside the housing 11 .
- a Peltier element is not provided inside the housing 11 .
- a blower 30 includes an integral housing H communicating with the ducts 27 a and 27 b , a blower fan 31 mounted inside the central portion of the integral housing H, and Peltier element assemblies 12 mounted inside the integral housing H.
- the Peltier element assemblies 12 are provided in the portions of the integral housing H that are connected to the ducts 27 a and 27 b.
- each of the Peltier element assemblies 12 can include a Peltier element (not shown) and heat sink fins (not shown) attached to one or both sides of the Peltier element.
- the PTC element 16 a operates when the seat S is heated (or warmed), whereas the Peltier element operates when the seat S is cooled. Accordingly, in this exemplary embodiment, it is possible to immediately provide warm air to the seat S using the PTC elements 16 a , located on the distal ends of the ducts 27 a and 27 b , during the heating. These characteristics of this exemplary embodiment can advantageously prevent hot air, which is supplied from the PTC element inside the integral housing H, from making the duct flexible. Otherwise, in the structure of the foregoing embodiment shown in FIG. 7 , the hot air might make the duct flexible when it flows through the duct.
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Abstract
Description
- The present application claims priority to Korean Patent Applications Number 10-2009-0088222 filed on Sep. 17, 2009 and 10-2010-0050013 filed on May 28, 2010 the entire contents of which applications are incorporated herein for all purposes by this reference.
- 1. Field of the Invention
- The present invention relates to a heating and cooling system for a vehicle seat, and more particularly, to one which can enhance power efficiency by efficiently cooling and heating the vehicle seat.
- 2. Description of Related Art
- In general, a vehicle is equipped with an air-conditioning system including a cooler and a heater. The air-conditioning system serves to control the temperature inside the vehicle. However, the air-conditioning system does not have a function of controlling the temperature of a vehicle seat. In the summer, even if an occupant sitting on a vehicle seat lowers the temperature inside the vehicle by operating the cooler, the seat is relatively slowly cooled down. In addition, the seat is continuously warmed by the body heat of the occupant. Then, the occupant may sweat at the buttocks and the back, which would otherwise develop into heat rashes.
- In the winter, even if the occupant sitting on the vehicle seat raises the temperature inside the vehicle by operating the heater, the occupant may feel chilly or cold at the buttocks or back since the seat has stayed cold for a long time before the heater is operated.
- Accordingly, these days, a seat-dedicated heating and cooling system is additionally provided, which is designed to control the temperature of the seat. In particular, among such systems, which control both heating and cooling, most prominent is the technology that employs a thermoelectric element based on Peltier effect as a heat source.
- In a conventional heating and cooling system for a vehicle seat using a thermoelectric element as a heat source, the vehicle seat has a porous structure or air passages through which air can freely flow. The heating and cooling system controls the temperature of the seat by blowing air, heated or cooled by the thermoelectric element, to the seat.
- The heating and cooling system is configured to heat or cool air using only the thermoelectric element. However, the problem of the thermoelectric element is that the efficiency of a heating part is about 50% of that of a cooling part under the same power supply conditions.
- The problem is not significant in the case of cooling the seat using the thermoelectric element. However, in the case of heating the seat, the low efficiency of the heating part of the thermoelectric element increases power consumption, thereby lowering the efficiency of the heating and cooling system.
- The information disclosed in this Background of the Invention section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
- Various aspects of the present invention are directed to provide a heating and cooling system for a vehicle seat, in which can ensure improvement in power efficiency and heating performance in the case of heating the vehicle seat.
- In an aspect of the present invention, the heating and cooling system for a vehicle seat, may include a heat exchanger cooling or heating air before the air is introduced into the seat, and a blower blowing air toward the heat exchanger, wherein the heat exchanger includes a positive temperature coefficient element assembly provided inside a housing of the heat exchanger to heat the air supplied from the blower, and wherein the positive temperature coefficient element assembly operates in a case of heating the seat but does not operate in a case of cooling the seat.
- The heat exchanger and the blower may be connected to each other by a duct, and the heat exchanger is detachably attached to the duct.
- The housing may be an integral housing enclosing the blower and the heat exchanger therein, wherein the heat exchanger is disposed in an output port of the integral housing and the positive temperature coefficient element assembly and the Peltier element assembly of the heat exchanger are aligned in series along a longitudinal direction of the output port, and wherein one or more of the integral housings are provided in one or more of a sitting part and a back of the seat.
- The heating and cooling system may include two of the heat exchangers coupled to both ends of the blower, wherein one or more of the heat exchangers are provided in one or more of a sitting part and a back of the seat.
- In another aspect of the present invention, the heating and cooling system for a vehicle seat, may include a heat exchanger cooling or heating air before the air is introduced into the seat, and a blower blowing air toward the heat exchanger, wherein the heat exchanger includes: a positive temperature coefficient element assembly provided inside a housing of the heat exchanger to heat the air supplied from the blower, and a Peltier element assembly provided adjacent to the positive temperature coefficient element assembly to cool or heat air supplied from the blower, wherein the positive temperature coefficient element assembly operates in a case of heating the seat, and the Peltier element assembly operates in a case of cooling or heating the seat.
- The housing of the heat exchanger may have a seat inlet passage, through which cooled or heated air in the housing is introduced toward the seat, and an outlet passage, through which air in the housing is exhausted from the seat, wherein the housing further has a partition forming a boundary between the seat inlet passage and the outlet passage, and the Peltier element assembly is arranged to extend from the partition toward an entrance of the housing to guide air into the seat inlet passage and the outlet passage respectively.
- The housing may further have an entrance-side partition provided in an entrance area of the housing and extending from the Peltier element assembly toward the entrance to prevent air heat-controlled by the Peltier element assembly and air heat-controlled by the Peltier element assembly from being mixed with each other, and the positive temperature coefficient element assembly is arranged along one lateral side of the entrance-side partition and is located in a passage leading to the seat inlet passage.
- The positive temperature coefficient element assembly may be located more adjacent to the blower than the Peltier element assembly is, and the positive temperature coefficient element assembly selectively operates to evaporate condensed water, which is produced due to the Peltier element assembly, in case of cooling the seat.
- The positive temperature coefficient element assembly may be arranged in series from the Peltier element assembly toward the entrance of the housing and the heating and cooling system may further include heat sink fins attached to one lateral side of the Peltier element assembly, which faces the seat inlet passage.
- The heating and cooling system may further include heat sink fins attached to both sides of the Peltier element assembly and the positive temperature coefficient element assembly.
- The eat exchanger and the blower may be connected to each other by a duct, and the heat exchanger is detachably attached to the duct.
- The housing may be an integral housing enclosing the blower and the heat exchanger therein, wherein the heat exchanger is disposed in an output port of the integral housing and the positive temperature coefficient element assembly and the Peltier element assembly of the heat exchanger are aligned in series along a longitudinal direction of the output port, and wherein one or more of the integral housings are provided in one or more of a sitting part and a back of the seat.
- The heating and cooling system may include two of the heat exchangers coupled to both ends of the blower, wherein one or more of the heat exchangers are provided in one or more of a sitting part and a back of the seat.
- According to various aspects of the present invention as set forth above, the heating and cooling system for a vehicle seat has the following effects:
- First, since the seat is heated using the PTC element having excellent heating performance, the efficiency of the heater can be raised when compared to the conventional heating using the Peltier element. Accordingly, the heating of the vehicle seat and the power efficiency can be improved.
- Second, since the heating is performed using the PTC element, it is not necessary to convert the direction of a current supplied to the Peltier element unlike the related art. As a result, the circuit configuration is simplified.
- The methods and apparatuses of the present invention have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated herein, and the following Detailed Description of the Invention, which together serve to explain certain principles of the present invention.
-
FIG. 1 is a schematic configuration view showing an exemplary heating and cooling system for a vehicle seat of the present invention. -
FIG. 2 is a perspective view showing important parts of the exemplary heating and cooling system for a vehicle seat shown inFIG. 1 . -
FIG. 3 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention. -
FIG. 4 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention. -
FIG. 5 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention. -
FIG. 6 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention. -
FIG. 7 is a side cross-sectional view showing a heat exchanger in accordance with an exemplary heating and cooling system for a vehicle seat of the present invention. -
FIG. 8 is a side cross-sectional view showing a sixth exemplary embodiment of the heating and cooling system for a vehicle seat of the invention; and -
FIG. 9 is a perspective view showing important parts of the heating and cooling system for the vehicle seat shown inFIG. 8 . - It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment.
- In the figures, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing.
- Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is/are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims. Above all, reference should be made to the drawings, in which the same reference numerals and signs are used throughout the different drawings to designate the same or similar components. In the following description of the present invention, a detailed description of known functions and components incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
-
FIG. 1 is a schematic configuration view showing a heating and cooling system for a vehicle seat of the present invention,FIG. 2 is a perspective view showing important parts of the heating and cooling system for a vehicle seat shown inFIG. 1 , andFIG. 3 is a side cross-sectional view showing a heat exchanger in accordance with a first exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention. - Referring to
FIG. 1 , the heating andcooling system 1 for a vehicle seat of the present exemplary embodiment is provided in the rear side of a vehicle seat S, and supplies air into the seat S by heating or cooling it. The seat S includes a sitting part S1 and a back S2. The sitting part S1 and the back S2 has a number of pores such that air, supplied from the heating andseating system 1, can uniformly spread across the seat S. - The heating and
cooling system 1 for a vehicle seat includes twoheat exchangers blower 30, andducts heat exchanger 10 is provided inside the rear side of the back S2 of the seat S, and theheat exchanger 20 is provided inside the rear side of the sitting part S1 of the seat S. Theheat exchangers blower 30 blows air toward theheat exchangers ducts blower 30 with theheat exchangers - The
heat exchanger blower 30, is into cold or warm air. - More in detail, the
heat exchangers first heat exchanger 10, which is provided in the rear side of the back S2 to supply cold or warm air to the back S2, and thesecond heat exchanger 20, which is provided in the rear side of the sitting part S1 to supply cold or warm air to the sitting part S1. - The
heat exchangers blower 30 by thefirst duct 41 and thesecond duct 42, respectively. Theducts blower 30, to theheat exchangers ducts heat exchangers - The
blower 30 supplies wind to theheat exchangers ducts blower 30 to generate a flow of air. For this, an air intake port, from which air is introduced from outside, can be formed in one side of theblower 30, and an air blowing port communicating with therespective ducts blower 30. - The
first heat exchanger 10 is connected with thefirst duct 41 to supply wind, blown from theblower 30, to the back S2 by heating or cooling it. For this, a heater and a cooler are provided inside thefirst heat exchanger 10 in order to heat and cool air, which is supplied from theblower 30. - As shown in
FIG. 3 , thefirst heat exchanger 10 includes ahousing 11 defining the outline of thefirst heat exchanger 10, a seat inlet passage A through which air heat-exchanged inside thehousing 11 is introduced into the back S2 of the seat S, and an outlet passage B through which air is exhausted from the seat S. - The seat inlet passage A forms one passage inside the
housing 11, and the distal end of the passage defines aseat inlet port 11 a, through which air is supplied into the pores of the seat S. - The outlet passage B is located adjacent to the seat inlet passage A, forming a passage through which air is exhausted. The distal end of the outlet passage B defines an
outlet port 11 b. Another connector such as a duct can be connected to theoutlet port 11 b such that air exhausted through theoutlet port 11 b does not flow back into the seat S. - The
second heat exchanger 20 is for introducing air, which is heated or cooled down, into the sitting part S1 of the seat S. Except for this feature, thesecond heat exchanger 20 has substantially the same function and structure as thefirst heat exchanger 10. - The most important feature of the present invention is that the heater and the cooler are provided in the
first heat exchanger 10 and in thesecond heat exchanger 20, respectively, in order to heat and cool air to be supplied into the seat S.A Peltier element 13 is used as a main cooler, and a Positive Temperature Coefficient (PTC)element 16 is used as a heater. - As is well known in the art, when a current is passed around the Peltier element, one side is heated and the other side is cooled. The side to be heated is changed according to the direction of the current applied.
- Accordingly, when the current is supplied to the
Peltier element 13 of the present exemplary embodiment, one side of thePeltier element 13, which is heated, and one group ofheat sink fins 14 adjacent thereto serve as a heater. At the same time, the other side of thePeltier element 13, which is cooled, and the other group of theheat sink fins 14 adjacent thereto serve as a cooler. - The PTC element is a semiconductor element that experiences a rapid increase in electrical resistance at a temperature equal to or more than Curie temperature. The PTC element has a self-temperature control function that maintains a constant heating temperature regardless of surrounding temperature when a voltage is applied.
- The
heat sink fins 14 are attached to both sides of thePeltier element 13 in a heat conductive structure, thereby constructing aPeltier element assembly 12. Theheat sink fins 14 are constructed to maximize the contact area between heat or cold air created by thePeltier element 13 and air flowing inside theheat exchanger 10. - In addition,
heat sink fins 17 are also attached to both sides of thePTC element 16, thereby producing aPTC element assembly 15. Theheat sink fins 17 raise the heat exchange efficiency between heat generated by thePCT element 16 and air flowing inside theheat exchanger 10. - Although the
heat sink fins heat sink fins heat sink fins heat exchanger 10. - The
housing 11 also has apartition 11 d defining the boundary between the seat inlet passage A and the outlet passage B, and thePeltier element 13 extends in the longitudinal direction of thepartition 11 d. Specifically, thePeltier element 13 is oriented such that one side faces the seat inlet passage A and the other side faces the outlet passage B. Accordingly, the opposite sides of thePeltier element 13 form the boundary of the seat inlet passage A and the boundary of the outlet passage B. - An entrance-
side partition 11 d, which extends from thePeltier element 13, is also provided adjacent to anentrance 11 c of thehousing 11. The entrance-side partition 11 d further separates the seat inlet passage A from the outlet passage B so that air heated by thePeltier element 13 and air cooled by thePeltier element 13 are not mixed with each other inside thehousing 11. - The
PTC element assembly 15 is arranged along one side of the entrance-side partition 11 d and is located inside the seat inlet passage A. Among the two passages A and B in theheat exchanger 10, the seat inlet passage A extends from the area of theentrance 11 c of thehousing 11 to theseat inlet port - This is because the
PTC element assembly 15 generates only heat unlike thePeltier element assembly 12. Thus, it is not necessary to exhaust air, heated by thePTC element assembly 15, through theoutlet port - When the
PTC element assembly 15 is located in the passage A extending from theentrance 11 c of thehousing 11 to theseat inlet port 11 a as described above, it is possible to exclusively supply air, heated by thePTC element assembly 15, to the seat S through theseat inlet port 11 a. This, as a result, can raise heating efficiency and power efficiency by reducing heat loss. - Below, a description will be given of the operation of the heating and cooling system for a vehicle seat in accordance with the first exemplary embodiment of the present invention with reference to the above-described components.
- First, in the case of attempting to supply cold air to the seat S in the summer, a controller of the vehicle controls the heating and
cooling system 1 so that thePeltier element 13 operates but thePTC element 16 does not operate. - When a current is applied to the
Peltier element 13, one side of thePeltier element 13 adjacent to theseat inlet port 11 a is cooled down and the other side of thePeltier element 13 adjacent to theoutlet port 11 b is heated. At the same time, theheat sink fins 14 in contact with thePeltier element 13 are cooled or heated according to their position and perform heat exchange with air, which flows inside theheat exchanger 10. - Air performs heat exchange with the cooler of the
Peltier element assembly 12 while it is flowing along the passage A, which extends from theentrance 11 c of theheat exchanger 10 to theseat inlet port 11 a. As a result, cooled air is supplied to the seat S. In contrast, air performs heat exchange with the heater of thePeltier element assembly 12 while it is flowing along the passage B, which extends from theentrance 11 c of theheat exchanger 10 to theoutlet port 11 b. As a result, heated air is exhausted from the seat S throughoutlet port 11 b. - Next, in the case of attempting to supply warm air to the seat S in the winter, the controller of the vehicle controls the heating and
cooling system 1 so that thePTC element 16 operates but thePeltier element 13 does not operate. - When a current is applied to the
PTC element 16, thePTC element 16 is heated and theheat sink fins 17 in contact with thePTC element 16 are heated along with thePTC element 16 so as to perform heat exchange with air introduced into theheat exchanger 10. Since thePTC element assembly 15 is located in the passage A, which extends from the entrance of theheat exchanger 10 to theseat inlet port 11 a, thePTC element assembly 15 heats only a portion of air, which is exhausted to theseat inlet port 11 a, when the air is introduced into theheat exchanger 10. In contrast, the remaining portion of the air simply passes through theheat exchanger 10 without heat exchange, and is then exhausted to theoutlet port 11 b. - As such, the
Peltier element 13 cools air in the case of attempting to supply cold air to the seat S, and thePTC element 16 having excellent power efficiency heats air in the case of attempting to supply warm air to the seat S. This, as a result, makes it possible to improve heating and cooling efficiency as well as to raise power efficiency. -
FIG. 4 is a side cross-sectional view showing a heat exchanger in accordance with a second exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention. The present exemplary embodiment will be described mainly with reference to the parts different from those of the foregoing embodiment. - Unlike the foregoing embodiment, a
heat exchanger 10 a of the present exemplary embodiment does not include the entrance-side partition 11 d (seeFIG. 3 ), but aPTC element 16 a further extends in the longitudinal direction of aPeltier element 13. Thus,PTC element 16 a is located more adjacent to anentrance 11 c, that is, theblower 30. - Like the foregoing embodiment,
heat sink fins Peltier element 13 and thePTC element 16 a, thereby constructing aPeltier element assembly 12 and aPTC element assembly 15 a. However, in the present exemplary embodiment, thePTC element 16 a also forms the boundary between the seat inlet passage A and the outlet passage B. Accordingly, thePTC element 16 a also acts as the entrance-side partition 11 c of the foregoing embodiment. - Like the foregoing embodiment, in the case of attempting to supply cold air to the seat S in the summer, the heating and
cooling system 1 of the present exemplary embodiment is controlled by a controller of the vehicle so as to operate thePeltier element 13 a without operating thePTC element 16 a. - In addition, in the case of attempting to supply warm air to the seat S, the controller of the vehicle controls the heating and
cooling system 1 so that thePTC element 16 a operates but thePeltier element 13 a does not operate. -
FIG. 5 is a side cross-sectional view showing a heat exchanger in accordance with a third exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention. The present exemplary embodiment will be described mainly with reference to the parts different from those of the foregoing second embodiment. - Unlike the foregoing embodiment, in a
heat exchanger 10 b of the present exemplary embodiment,heat sink fins 14 a are attached to one side of aPeltier element 13 a, which faces a seat inlet passage A. However, heat sink fins are not attached to the other side of thePeltier element 13 a, which faces an outlet passage B. - According to this configuration, in the case of attempting to supply warm air to the seat S, a controller of the vehicle controls the heating and cooling system so that the
PTC element 16 a operates but thePeltier element 13 a does not operate. This, as a result, can prevent heat loss, i.e., heat generated by thePTC element 16 a is transmitted to thePeltier element 13 a, from which the heat is exhausted through the outlet passage. - Meanwhile, the
heat exchangers Peltier element Peltier element 13 and thePTC element 16 a operate in the case of heating the seat S. - In addition, if condensed water is produced due to the
Peltier element 13 in the case of cooling the seat S, the heat exchanger can be controlled so that also thePTC element 16 operates to evaporate the condensed water. -
FIG. 6 is a side cross-sectional view showing a heat exchanger in accordance with a fourth exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention. The present exemplary embodiment will be described mainly with reference to the parts different from those of the foregoing embodiments. - Unlike the foregoing embodiments, in a
heat exchanger 10 c of the present exemplary embodiment, only aseat inlet port 11 a is formed in ahousing 11 but an outlet port is not formed. In addition, although aPTC element assembly 15 a including aPTC element 16 a andheat sink fins 17 a is arranged inside thehousing 11, a Peltier element is not provided. - Accordingly, the heating and cooling system of the present exemplary embodiment is operated differently from those of the foregoing embodiments, i.e., the
PTC element 16 is operated in the case of heating the seat S, but cooling is performed by operating only theblower 30 without operating thePTC element 16 in the case of cooling the seat S. -
FIG. 7 is a side cross-sectional view showing a heat exchanger in accordance with a fifth exemplary embodiment of the heating and cooling system for a vehicle seat of the present invention. - Unlike the foregoing embodiments, according to the feature of the present exemplary embodiment, an integral housing H, which encloses a heat exchanger and a blower therein, is provided. The integral housing H may include an
entrance 22 at one side thereof and the positivetemperature coefficient element 15 and thePeltier element 12 may be disposed in anoutput port 24 aligned in series along a longitudinal direction of theoutput port 24. - As a result, the configuration of the heating and cooling system for a vehicle seat is simplified.
- In other words, the foregoing embodiments are realized inside one housing by arranging a
blower 30 in the center of the housing and heat exchanging components, including aPeltier element assembly 12 and aPTC element assembly 15, on both sides of the blower. - As such, according to the heating and cooling system of the present exemplary embodiment, one simple device can replace complicated components. Accordingly, the heating and cooling system can be easily installed in and separated from the seat, and the maintenance of the heating and cooling system is made easier. It should be understood that the configuration shown in
FIG. 7 is only a schematic illustration and the configurations of the foregoing embodiments can be adopted for the heat exchanger unit of the present exemplary embodiment. -
FIG. 8 is a side cross-sectional view showing a sixth exemplary embodiment of the heating and cooling system for a vehicle seat of the invention, andFIG. 9 is a perspective view showing important parts of the heating and cooling system for the vehicle seat shown inFIG. 8 . - In this embodiment, a
heat exchanger 10 includes aduct 27 a, and aheat exchanger 20 includes aduct 27 b. Theducts PTC element assembly 15 a, which heats air, is mounted on each of theheat exchangers - As shown in
FIG. 9 , referring to thefirst heat exchanger 10 by way of example, a housing 110 has anair inlet port 11 a, but an air outlet port is not provided. - In addition, a
PTC element assembly 15 a, which includes aPTC element 16 a andheat sink fins 17 a, is disposed inside thehousing 11. However, a Peltier element is not provided inside thehousing 11. - In addition, a
blower 30 includes an integral housing H communicating with theducts blower fan 31 mounted inside the central portion of the integral housing H, andPeltier element assemblies 12 mounted inside the integral housing H. ThePeltier element assemblies 12 are provided in the portions of the integral housing H that are connected to theducts - Here, as in the foregoing exemplary embodiments, each of the
Peltier element assemblies 12 can include a Peltier element (not shown) and heat sink fins (not shown) attached to one or both sides of the Peltier element. - In this exemplary embodiment, the
PTC element 16 a operates when the seat S is heated (or warmed), whereas the Peltier element operates when the seat S is cooled. Accordingly, in this exemplary embodiment, it is possible to immediately provide warm air to the seat S using thePTC elements 16 a, located on the distal ends of theducts FIG. 7 , the hot air might make the duct flexible when it flows through the duct. - The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present invention, as well as various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents.
Claims (17)
Applications Claiming Priority (4)
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KR10-2009-0088222 | 2009-09-17 | ||
KR20090088222 | 2009-09-17 | ||
KR10-2010-0050013 | 2010-05-28 | ||
KR1020100050013A KR101232451B1 (en) | 2009-09-17 | 2010-05-28 | Heating and air conditioning system for vehicle seat |
Publications (1)
Publication Number | Publication Date |
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US20110061403A1 true US20110061403A1 (en) | 2011-03-17 |
Family
ID=43662717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/879,897 Abandoned US20110061403A1 (en) | 2009-09-17 | 2010-09-10 | Heating and cooling system for vehicle seat |
Country Status (3)
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US (1) | US20110061403A1 (en) |
CN (1) | CN102019867B (en) |
DE (1) | DE102010037449B4 (en) |
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CN110439831A (en) * | 2018-05-02 | 2019-11-12 | 现代自动车株式会社 | Flow performance Optimization-type bidirectional blower |
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Also Published As
Publication number | Publication date |
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CN102019867B (en) | 2017-08-08 |
CN102019867A (en) | 2011-04-20 |
DE102010037449B4 (en) | 2015-03-26 |
DE102010037449A1 (en) | 2011-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KIA MOTORS CORPORATION, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JUN, DUCK CHAE;JEONG, WOOK;OH, MAN JU;AND OTHERS;REEL/FRAME:024971/0809 Effective date: 20100901 Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JUN, DUCK CHAE;JEONG, WOOK;OH, MAN JU;AND OTHERS;REEL/FRAME:024971/0809 Effective date: 20100901 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |