KR20150025961A - Air conditioner for vehicle with thermoelement module - Google Patents

Abstract

Disclosed in the present invention is a vehicle air conditioner with a thermoelement module, which can improve thermal efficiency by increasing the number of thermoelement modules while decreasing flow resistivity of air, and can efficiently perform heat radiation without increasing the width of a duct. The vehicle air conditioner with a thermoelement module comprises: a front seat air conditioner which includes a heating means and a cooling means in order to selectively blow cold air or warn air to the inside of a vehicle; a duct which is extended from the front seat air conditioner in order to guide the air from the air conditioner to the back seat of the vehicle; a thermoelement whose one side surface is cooled and whose the other side surface is heated by power supply; and a heat radiating pin which is in contact with one side surface of the thermoelement in order to exchange heat with the air flowing the inside of the duct. In addition, the thermoelement and the heat radiating pin are arranged in order to form multiple rows in a vertical direction to the air flowing direction inside the duct. Therefore, the vehicle air conditioner with a thermoelement module can improve thermal efficiency by increasing the number of thermoelement modules while decreasing flow resistivity of air, and can efficiently perform heat radiation without increasing static pressure of a blower and increasing the width of the duct.

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle air conditioner having a thermoelectric module,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle air conditioner, and more particularly, to a vehicular air conditioner equipped with a thermoelectric module, which is mounted on a vehicle and maintains conditions such as temperature, humidity, airflow, .

An air conditioner for a vehicle includes an evaporator for cooling the inside of the air conditioner case, an evaporator for cooling the inside of the air conditioner case, an evaporator for cooling the inside of the air conditioner case, A heater core for the heating action, and air blown or heated by the evaporator or the heater core are selectively blown to respective portions of the vehicle interior using a blowing mode switching door.

Generally, such a vehicle air conditioner is installed in front of a driver's seat of a vehicle to discharge air-conditioned air, and a duct is extended to the back of a vehicle such as a console to supply air-conditioning air throughout the vehicle interior. In recent years, a small cold / warm storage room for storing beverages and food in a vehicle interior is installed in an inner space such as a glove box or a console box armrest, and a cold room of the cold / hot storage is provided through a duct extending from an air- It is also performed by the supplied air.

Korean Patent Laid-Open Publication No. 2010-0061172 (Jun. 2010), filed on Jun. 7, 2010, discloses a method for driving a vehicle. 1 is a cross-sectional view showing a conventional coolbox for a vehicle rearview.

1, a conventional cooling box for a vehicle retractable type is mounted on an armrest 20 and includes a storage box 100 having a space therein and a lid 120, And a duct 200 through which air flows to discharge the heat generated from the thermoelectric element 110. The heat generated by the thermoelectric element 110 is supplied to the thermoelectric element 110, The armrest 20 is configured to be rotatable toward the seat cushion 12 and the seatback 14, and a part of the duct 200 is constituted by the soft tube 210. Inside the duct 220, a heat sink 220 having a fin shape is provided for cooling the thermoelectric element 110, and a blower motor 300 for flowing air to one side is provided. The reference numeral 30 is a trunk.

In addition, in Korean Patent Laid-Open Publication No. 2012-0084486 (Jul. 30, 2012), which has been filed, a cold storage device for a vehicle using a thermoelectric module has been disclosed. 2 is a cross-sectional view showing a cold storage jig for a vehicle using a conventional thermoelectric module.

2, a conventional cold storage apparatus 100 using a thermoelectric module includes a main body 110 having a storage chamber 111, a heat absorbing unit 110 mounted on one side of the main body 110, Or a thermoelectric module that dissipates heat. The thermoelectric module includes a thermoelectric module 120 for cooling / warming operation and a thermoelectric module 130 for operation switching. An inlet 151 through which the room air flows so that the air flows along the outer surface of the main body 110 and a discharging unit 152 through which the introduced room air is discharged are formed on the outer surface of the main body 110, A duct 150 for exchanging the introduced indoor air with the thermoelectric module, and an exhaust fan 160. The control unit 140 controls the operation of the thermoelectric module.

However, the structure of the thermoelectric module, which is heat-exchanged by the heat-radiating fins in the conventional duct, has a problem that the air flowing in the duct acts as a resistor by the heat-radiating fins or the thermoelectric module, That is, in order to improve the efficiency of the thermoelectric module, it is necessary to increase the heat exchange area between the air and the radiating fins in the duct. The increase of the heat exchanging area increases the total length of the radiating fins to increase the flow resistance, There is a problem that the static pressure of the blower rises. Further, if the radiating fin is formed to be long in the direction perpendicular to the air flow direction to increase the heat exchange area, the width of the duct increases and the package size can not be satisfied.

Patent Document 1: Korean Published Patent Application No. 2010-0061172 (2010.06.07) Patent Document 2: Korean Published Patent Application No. 2012-0084486 (July 30, 2012)

In order to solve the above problems, the present invention provides an improved structure for improving the thermal efficiency by increasing the number of the thermoelectric module modules while reducing the flow resistance of the air, and efficiently radiating heat without increasing the width of the duct And a thermoelectric module of the vehicle.

A vehicle air conditioner having a thermoelectric module according to the present invention comprises a front seat side air conditioning device which has a heating means and a cooling means inside to selectively blow cold or warm air into the vehicle interior, A heat conduction element that is cooled by one side of the conduit and is heated by the other side of the conduit, and a heat dissipation fin which is in contact with one side of the conduction element and exchanges heat with air flowing in the conduit, And the thermoelectric elements and the heat radiating fins are arranged in a plurality of rows in parallel in a direction perpendicular to the air flow direction inside the duct.

The air conditioner for a vehicle provided with the thermoelectric module according to the present invention can improve the thermal efficiency by increasing the number of the thermoelectric module modules while reducing the flow resistance of the air, without increasing the static pressure of the blower, So that the heat dissipation can be performed.

Fig. 1 is a cross-sectional view showing a conventional cooling jacket for a vehicle,
2 is a cross-sectional view showing a cold storage jig for a vehicle using a conventional thermoelectric module,
3 is a schematic view illustrating a vehicle air conditioner having a thermoelectric module according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a mounting structure of a thermoelectric module according to an embodiment of the present invention,
5 is a schematic view illustrating a water-cooling system of a thermoelectric module according to an embodiment of the present invention,
6 is a cross-sectional view illustrating a mounting structure of a thermoelectric module according to a modification of FIG.

Hereinafter, a technical configuration of a vehicle air conditioner having a thermoelectric module will be described in detail with reference to the accompanying drawings.

FIG. 3 is a schematic view illustrating a vehicle air conditioner having a thermoelectric module according to an embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating a mounting structure of a thermoelectric module according to an embodiment of the present invention. And FIG. 5 is a schematic view illustrating a water-cooling system of a thermoelectric module according to an embodiment of the present invention.

3 to 5, a vehicle air conditioner having a thermoelectric module 600 according to an embodiment of the present invention includes an air conditioning unit 510, a duct 530, a console vent 520, a thermoelectric element, a heat dissipation fin, a blower 521, and a heat exchanger.

The air conditioning case 510 is provided with a heating means and a cooling means therein to selectively blow cool air or warm air into the passenger compartment. The air conditioning case has an air inlet formed at an inlet side thereof and an air outlet formed at an outlet side thereof. An evaporator and a heater core disposed inside the air conditioning case; a heater disposed between the evaporator and the heater core to selectively open and close the air flow toward the heater core; Lt; / RTI > The detailed configuration of the front passenger side air conditioner is well known, and a detailed description thereof will be omitted.

The duct 530 extends from the front seat side air conditioning apparatus 510 and serves to guide the air conditioning air discharged from the front seat side air conditioning apparatus 510 to the rear side of the vehicle. In this case, the rear side of the vehicle may include a glove box, a console box, an armrest, and the like. In this embodiment, the duct 530 connects the front air conditioning unit 510 and the console vent 520 to each other I will explain.

The thermoelectric element is a device in which one side is cooled and the other side is heated according to the application of power, and serves as means for performing main cooling and heating of the vehicle interior or auxiliary cooling and heating. The heat dissipation fins come in contact with one side of the thermoelectric element and exchange heat with the air flowing inside the duct 530. The blower 521 functions to raise the air static pressure so that the air flowing inside the duct 530 can overcome the pressure lost by the heat radiation fins. The blower 521 may be freely installed upstream or downstream of the thermoelectric element in the air flow direction.

In particular, the thermoelectric elements and the heat dissipation fins are arranged in a plurality of rows in parallel in a direction perpendicular to the air flow direction inside the duct 530. When the thermoelectric elements and the heat radiating fins are arranged in n rows, the length of the heat radiating fins in the flow direction of the air is reduced to 1 / n times as compared with the structure in which the same number of thermoelectric elements are arranged in one row, . In addition, the air flow rate per each heat sink is reduced by 1 / n times, and the flow resistance is reduced due to the flow rate deceleration.

A plurality of heat exchangers may be provided, and in this embodiment, a structure including a single first heat exchanger 650 will be described. The first heat exchanger 650 is in contact with the opposite side of the heat dissipation fin on both sides of the thermoelectric element so that when the heat dissipation fin is cooled, the first heat exchanger 650 dissipates heat and the heat dissipation fin is heated, 650) absorb heat.

In this embodiment, the thermoelectric element is composed of the first thermoelectric element 630 and the second thermoelectric element 640, and the heat radiating fin is composed of the first heat radiating fin 610 and the second heat radiating fin 620. A first thermoelectric element 630 and a second thermoelectric element 640 are provided on both sides of the first heat exchanger 650. The first thermoelectric element 630 is in contact with the first heat radiating fin 610 and the second thermoelectric element 640 is in contact with the second heat radiating fin 620. As described above, a plurality of thermoelectric elements and heat dissipation fins are intensively installed in the width of the limited duct 530, so that efficient heat exchange can be performed without increasing the air resistance.

The inner flow path of the duct 530 is configured to branch at the upstream side of the heat radiation fins in the air flow direction and to merge at the downstream side of the heat radiation fins. That is, a plurality of flow paths are formed in parallel within the duct 530 in a direction perpendicular to the flow direction of air to form a first flow path 531 and a second flow path 532 as shown in FIG. do. In this case, the plurality of heat dissipation fins are respectively disposed in the partitioned flow path. More specifically, the first heat radiation fins 610 are disposed in the first flow path 531, and the second heat radiation fins 620 are disposed in the second flow path 532.

The air that is discharged from the front passenger side air conditioner 510 and supplied through the duct 530 is branched at the front end of the thermoelectric module 600 and flows through the first heat radiation fins 610 and the second heat radiation fins 620 And then joined to the duct 530 at the rear end of the thermoelectric module and discharged to the console vent 520 side.

The duct 530 is provided with a space 535 between the divided flow passages 531 and 532. The thermoelectric elements 630 and 640 and the first heat exchanger 650 are spaced apart from each other, (535). With this configuration, only the heat dissipation fins 610 and 620 are disposed on the internal air flow path of the duct 530, and the thermoelectric elements 630 and 640 and the first heat exchanger 650 are disposed inside the duct 530 So that heat exchange efficiency can be further improved. Due to such a coordinated configuration of the space portion 535, the partitioning flow paths 531 and 532 and the parallel arrangement structure of the thermoelectric module, the air resistance is not increased, and at the same time, Can be performed.

Referring to FIG. 5, the first heat exchanger 650 is a water-cooled heat exchanger type, and the first heat exchanger 650 is installed on a circulation circuit of the cooling pipe 651. In addition, a pump 652 for circulating cooling water on the cooling pipe 651 and a heat exchanger 653 for dissipating the heat absorbed by the heat exchanger to the outside are provided. Accordingly, the heat generated inside the duct 530 can be efficiently dissipated or absorbed, thereby improving the air conditioning performance.

6 is a cross-sectional view illustrating a mounting structure of a thermoelectric module according to a modified example of FIG. The embodiment shown in FIG. 6 has three thermoelectric element modules in comparison with the above-described embodiment, and a detailed description thereof is omitted for the redundant configuration, and a plurality of pairs of thermoelectric element modules are arranged in n rows As shown in FIG.

6, a third thermoelectric transducer 670, a second heat exchanger 690, a fourth thermoelectric transducer 680, and a third thermoelectric transducer 670 are disposed on the opposite sides of the second thermoelectric element 640 on both sides of the second heat radiating fin 620, And the third radiating fins 660 are sequentially arranged in contact with each other. In this case, the internal flow path of the duct 530 is divided into a first flow path 531, a second flow path 532, and a third flow path 533, and a space portion 535 is formed between the flow paths. The third flow path fin 660 is disposed in the third flow path 533. With this configuration, even if the thermoelectric module is composed of a plurality of thermoelectric modules, the thermoelectric module can be efficiently arranged without increasing the width of the duct 530.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand the point. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

510: Front air side air conditioning system 520: Console vent
521: Blower 530: Duct
600: thermoelectric module 610: first heat radiating pin
620: second radiating fin 660: third radiating fin
630: first thermoelectric element 640: second thermoelectric element
670: third thermoelectric element 680: fourth thermoelectric element
650: first heat exchanger 690: second heat exchanger
531: first flow path 532: second flow path
533: third flow path 535:
651: cooling pipe 652: pump
653: heat exchanger for heat dissipation

Claims (6)

(510) which is provided with a heating means and a cooling means therein to selectively blow cool air or warm air into the passenger compartment, a duct extending from the passenger compartment air conditioner (510) and guiding the air- And a heat dissipation fin 530 which is in contact with one side of the thermoelectric element and is heat-exchanged with air flowing in the duct 530, 1. A vehicle air conditioner having a thermoelectric module,
Wherein the thermoelectric elements and the heat dissipation fins are arranged in a plurality of rows in parallel in a direction perpendicular to an air flow direction inside the ducts (530). The method according to claim 1,
And a first heat exchanger (650) contacting the opposite side of the heat dissipation fin on both sides of the thermoelectric element. The first thermoelectric element (630) and the second thermoelectric element (640) are provided on both surfaces of the first heat exchanger (650) Wherein a first radiating fin 610 is in contact with the first thermoelectric element 630 and a second radiating fin 620 is in contact with the second thermoelectric element 640. [ The air conditioner comprising: 3. The method of claim 2,
A third heat transfer element 670, a second heat exchanger 690, a fourth thermoelectric element 680, and a third heat dissipation fin 640 are provided on opposite sides of the second thermoelectric element 640 on both sides of the second heat radiating fin 620 660) are sequentially arranged in contact with each other. The method according to claim 1,
The inner flow path of the duct 530 is branched at the upstream side of the heat radiating fin in the air flow direction and merged at the downstream side of the heat radiating fin and flows into the duct 530 in a direction perpendicular to the air flowing direction, Wherein the plurality of heat dissipation fins are disposed in the divided flow paths, respectively, and the plurality of heat dissipation fins are disposed in the divided flow paths. 5. The method of claim 4,
The duct 530 is provided with a space portion 535 between each of the divided flow paths and a heat exchanger is provided between the plurality of thermoelectric elements. The thermoelectric element and the heat exchanger are connected to the space portion 535 Wherein the thermoelectric module is mounted on the vehicle. The method according to claim 1,
A pump 652 installed on the circulation circuit of the cooling pipe 651 for circulating the cooling water on the cooling pipe 651, and a pump 652 for circulating the cooling water on the cooling pipe 651, and a heat exchanger And a heat dissipating heat exchanger (653) for dissipating the heat absorbed by the heat exchanger to the outside.

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