KR100897328B1 - Thermoelectronic element module and air conditioner for a vehicle using the same - Google Patents

Abstract

Thermoelectric module for heat transfer during cooling and heating, and vehicle air conditioner using the same are introduced. The thermoelectric module includes a plurality of thermoelectric elements 10, a heat conduction portion 30 having a flow path attached between the thermoelectric elements 10, and a connection pipe connecting the heat conduction portions to form a cooling and heating passage, The vehicle air conditioner includes a thermoelement module 300 for discharging cooling and heating water, a mixing valve 500 for discharging mixed water by mixing cooling and heating water, and a heat exchanger 900 for heat transfer of mixed water and air. It consists of. The thermoelectric module 300 separates cooling and heating, and the efficiency is increased by using a fluid as a heat transfer medium. The vehicle air conditioner using the same has fine control of temperature by using a mixture of cooling and heating, Cooling and heating are possible.

Thermoelectric element, air conditioner, air conditioner

Description

Thermoelectric element module and air conditioner for vehicle using same {Thermoelectronic Element Module And Air Conditioner For A Vehicle Using The Same}

The present invention relates to a thermoelectric module using a plurality of thermoelectric elements for cooling and heating, and a vehicle air conditioner using the thermoelectric module.

The thermoelectric element is composed of P-type and N-type semiconductor elements, and the conductive plates are attached to both ends based on the semiconductor elements. When a direct current flows through the thermoelectric element, a low temperature part and a high temperature part are formed at both ends, which is called a peltier effect. That is, in the thermoelectric element, one end of the conductive plate may serve as a cooling plate, and the other end of the thermoelectric plate may serve as a heating plate. By using the Peltier effect, thermoelectric elements are used in humidifiers, CPU cooling, cold water purifiers and refrigerators.

Conventional thermoelectric element is a form of the electrical conductive plate is exposed, convective heat transfer is not efficient heat transfer, there was a problem that temperature control is difficult.

A vehicle air conditioner has a main purpose of cooling and heating indoor vehicle air, and a conventional air conditioner has been mainly used for heating using a waste heat of an engine and a radiator, cooling using a compressor, a refrigerant, and the like. However, as vehicles using electricity or other alternative energy instead of engines appeared, there was a need for an air conditioner capable of driving without waste heat from the engine.

In addition, in the conventional vehicle cooling, the use of the freon gas used as a refrigerant is regulated, and when the heating efficiency increases, the engine waste heat, that is, a lack of a heat source, is generated. There was a need for air conditioning. Therefore, a vehicle air conditioner using a thermoelectric element has been developed, but the conventional thermoelectric element has a problem that its efficiency is not good using the air as a heat transfer medium.

The present invention has been proposed to solve this problem, and the purpose of the present invention is to improve the efficiency of a thermoelectric module and to implement cooling and heating in a vehicle interior without using an engine by using the thermoelectric module.

The thermoelectric element module according to the present invention for achieving the above object is provided with a cooling plate and a heating plate, the cooling plate is a plurality of thermoelectric elements disposed between the cooling plate and the heating plate to face the heating plate, the second is attached between the cooling plate 1 consists of a second heat conduction portion attached between the heat conduction portion and the heating plate, the flow path is formed therein, and the end of the flow path is connected to the inlet and outlet of the first heat conduction portion so that the inlet and outlet are formed with a heat conduction portion, and a series of cooling passages are formed. It consists of a first connecting pipe and a second connecting pipe for connecting the inlet and the outlet of the second heat conducting portion to form a series of heating flow path.

The first heat conducting unit and the second heat conducting unit are disposed to be perpendicular to each other, and the first connection pipe and the second connection pipe are preferably connected to each heat conducting unit such that the cooling passage and the heating passage are formed in a zigzag pattern.

The vehicle air conditioner includes a thermoelectric element provided with a cooling water supply unit, a cooling plate, and a heating plate for providing cooling water, and cooling water introduced from the cooling water supply unit is divided into a cooling channel and a heating channel, respectively, and cooled by heat conduction with the cooling plate and the heating plate. Thermoelectric module that discharges water and heating water, a mixing valve that selectively mixes cooling water and heating water flowing from the cooling flow path and heating flow path according to the required temperature, and adds a flow rate to the mixed water discharged from the mixing valve. A pump and a blower are provided to blow the wind, and a heat exchanger is provided for heat transfer between the blown wind and the mixed water flowing out of the pump, and a heat exchanger for sending the mixed water to the cooling water providing unit after heat exchange. The thermoelectric module includes a plurality of thermoelectric elements, a heat conduction portion attached between the thermoelectric elements, and the above-described thermoelectric element module including a connection pipe connecting the heat conduction portions to form a series of flow paths is applied.

The thermoelectric module is connected to the cooling water providing unit and the mixing valve so that the cooling water flows in the cooling flow path and the heating flow path in the opposite direction, and the heat exchanger is preferably a fin and pipe type.

According to the thermoelectric module having the structure as described above and the vehicle air conditioner using the same, the efficiency of the thermoelectric module is increased by separating the cooling and heating, the fluid as a heat transfer medium.

In addition, the air conditioner for a vehicle uses a mixture of cooling and heating water to finely control the temperature, and cooling and heating can be performed with one heat exchanger. Cooling and heating are possible even before engine preheating, and cooling and heating are possible even when the engine is not mounted.

Hereinafter, a thermoelectric device module and a vehicle air conditioner using the same according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

First, referring to FIGS. 1 and 2, the thermoelectric module is composed of a plurality of thermoelectric elements 10, a heat conducting portion 30, and a connecting tube, and the heat conducting portion 30 and the connecting tube are respectively cooled and cooled. The heating is divided into a first part and a second part.

The thermoelectric element 10 is provided with a cooling plate 12 and a heating plate 14, the cooling plate 12 is arranged to face each other, the heating plate 14 is a heating plate facing each other.

The heat conduction part 30 is a heat conductor, and a flow path is formed therein, and an inlet 36 and an outlet 38 are provided at the end of the flow path. The heat conductive portion 30 is divided into a first heat conductive portion 32 attached between the cooling plate 12, and a second heat conductive portion 34 attached between the heat generating plate 14, and the first heat conductive portion 32 and the first heat conductive portion 32. The second heat conductive part 34 is disposed between each of the thermoelectric elements 10 so as to be perpendicular to each other to form a basic flow path while minimizing thermal interference between cooling and heating mutually.

The connecting pipe includes a first connection pipe 50 connecting the inlet and the outlet of the first heat conducting part 32 to form a series of cooling passages 320, and a second heat conducting portion to form the series of heating passages 340. It is divided into a second connector (70) connecting the inlet and the outlet of the 34, the first connector 50 and the second connector 70 is a cooling channel 320 and the heating channel 340 is zigzag It is connected to each heat conduction part so as to be completed.

As can be seen in the conceptual diagram of FIG. 2, the cooling passage 320 passes through the cooling plate 12 in a zig-zag on the x-y plane, and the heating passage 340 passes through the heating plate 14 in a zig-zag on the x-z plane. Therefore, thermal interference between cooling and heating is minimized. Other fluids such as cooling water flow in the flow path, and heat transfer is performed using a heat conduction method, thereby minimizing heat loss than during convective heat transfer.

Looking at the configuration of the vehicle air conditioner with reference to Figure 3, the vehicle air conditioner is a cooling water providing unit 100, the thermoelectric module 300, the mixing valve 500, the pump 700, and the heat exchanger 900 It consists of.

The coolant providing unit 100 may supply coolant from an engine, or may be provided with its own coolant tank to provide coolant to an air conditioner. In addition, it is preferable to use a coolant replenishment valve when using its own tank.

The thermoelectric module 300 receives the cooling water of the cooling water providing unit 100 to generate heating water and cooling water, and the salping thermoelectric elements of FIGS. 1 and 2 are formed of a plurality of thermoelectric elements, a heat conducting unit 30, and a connection pipe. It is preferred that the module be applied. The inlet and the outlet of both ends of the thermoelectric module 300 are connected to the cooling water providing unit 100 and the mixing valve 500, respectively, and the cooling water of the cooling water providing unit 100 is divided into two parts and introduced into the heating flow path ( 340 and a cooling passage 320 are formed, and the generated heating water and cooling water enter the mixing valve 500 to generate mixed water. At this time, the flow of the cooling water flowing is preferably configured to be opposite to each other. In general, thermoelectric elements are less efficient as the temperature difference between the two heat conduction plates increases, so the temperature difference between the two heat conduction plates of the thermoelectric element is minimized by separating the outlet of the cooling water and the heating water.

The mixing valve 500 receives a mixing signal from a temperature control controller in a vehicle interior, and mixes and selects heating water and cooling water according to a required temperature to generate mixed water of a desired temperature. Mixing water is a heat transfer medium required for cooling and heating, it is possible to variously select the desired temperature through the mixing valve (500). The mixed water exiting the mixing valve 500 is increased by the pump 700 to flow through the flow path.

The heat exchanger 900 is provided with a blower 920 and a heat exchanger 940, the mixed water passing through the pump 700 flows through the heat exchanger 940, the blower 920 is the wind inside and outside the vehicle Collect and blow to the heat exchanger (940). The wind passing through the heat exchanger 940 is moved through the duct to each part of the vehicle interior to achieve cooling and heating. The heat exchanger 940 is preferably a fin and pipe type of high efficiency. The mixed water passing through the heat exchanger 900 is replenished with the cooling water provider 100.

1 is a perspective view of a thermoelectric module according to an embodiment of the present invention.

2 is a conceptual diagram of a thermoelectric module according to an embodiment of the present invention.

3 is a conceptual diagram of a vehicle air conditioner according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: thermoelectric element 12: cooling plate

14 heating plate 30 heat conduction unit

32: first heat conducting portion 34: second heat conducting portion

36: inlet 38: outlet

50: first connector 70: second connector

100: cooling water supply unit 300: thermoelectric module

320: cooling passage 340: heating passage

500: Mixing Valve 700: Pump

900 heat exchanger 920 blower

940: heat exchanger

Claims (8)

The cooling plate 12 and the heating plate 14 is provided, the cooling plate 12 is a plurality of thermoelectric elements 10 disposed to face each other, the heating plate 14 is the heating plate facing each other; The first heat conducting portion 32 is attached between the cooling plate 12, and the second heat conducting portion 34 attached between the heating plate 14, the flow path is formed therein and the inlet ( 36 and a heat conduction portion 30 formed with an outlet 38; A first connecting pipe 50 connecting the inlet and the outlet of the first heat conducting part 32 to form a series of cooling passages, and an inlet and the outlet of the second heat conducting part 34 to form a series of heating flow paths. It includes; a second connector 70 for connecting, The first connecting pipe (50) and the second connecting pipe (70) is a thermoelectric module connected to each heat conducting portion so that the cooling flow path and the heating flow path is formed in a zigzag form. The thermoelectric module of claim 1, wherein the first and second heat conducting parts are disposed perpendicular to each other. delete Cooling water providing unit 100 for providing the coolant; The thermoelectric element 10 provided with the cooling plate 12 and the heating plate 14 is provided, and the cooling water introduced from the cooling water providing unit 100 is divided into a cooling passage 320 and a heating passage 340, respectively, and a cooling plate. A thermal element module 300 which is thermally conductive with the heat generating plate 14 and the cooling water and the heating water; A mixing valve 500 for selectively mixing the cooling water and the heating water introduced from the cooling passage 320 and the heating passage 340 according to a required temperature to discharge the mixed water; A pump 700 for adding a flow rate to the mixed water discharged from the mixing valve 500; A blower 920 for blowing wind is provided, and a heat exchanger 940 for heat transfer between the blown wind and the mixed water flowing out of the pump 700 is provided, and the cooling water providing unit 100 exchanges the mixed water after heat exchange. It includes; heat exchanger 900 for sending to, The thermoelectric module 300 is, A plurality of thermoelectric elements 10 provided with a cooling plate 12 and a heating plate 14 such that the cooling plate 12 is disposed between the cooling plates and the heating plate 14 faces the heating plates; The first heat conducting portion 32 is attached between the cooling plate 12, and the second heat conducting portion 34 attached between the heating plate 14, the flow path is formed therein and the inlet ( 36 and a heat conduction portion 30 formed with an outlet 38; The first heat pipe (50) connecting the inlet and outlet of the first heat conducting portion 32 to form a series of cooling passages 320, and the second heat conducting portion (340) to form a series of heating passages (340) And a second connecting pipe 70 connecting the inlet and the outlet of the 34, wherein the first connecting pipe 50 and the second connecting pipe 70 each have a cooling flow path and a heating flow path in a zigzag fashion. Is connected to the unit, the inlet and the outlet of the both ends of the vehicle air conditioner connected to the cooling water providing unit 100 and the mixing valve 500, respectively. delete The vehicle air conditioner according to claim 4, wherein the first heat conducting part (32) and the second heat conducting part (34) of the thermoelectric element module (300) are disposed to be perpendicular to each other. 5. The vehicle of claim 4, wherein the thermoelectric module 300 is connected to the coolant providing unit 100 and the mixing valve 500 such that the cooling water flows in the cooling flow path 320 and the heating flow path 340 in opposite directions. Air conditioning system. 5. The air conditioner of claim 4, wherein the heat exchanger is a fin and pipe type.

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