KR100657681B1 - Peltier element assembly structure of a storage chamber - Google Patents

Abstract

The present invention relates to a thermoelectric element assembly structure of a reservoir, wherein a first heat transfer block 150 is disposed between an inner case 110 in which a cold sink 130 is disposed and an outer case 120 in which a heat sink 140 is disposed. The second heating block 160 including the overheating element 170 therein is connected and installed to seal and protect the thermoelectric element 170, and the thermoelectric element 170 is separated by the separation of the second heating block 160. It is characterized in that the maintenance of the. Therefore, the installation of the heat transfer block including and sealing the thermoelectric element has the effect of improving the assembly and durability of the thermoelectric element as well as maintaining and repairing the thermoelectric element even after foaming of the insulating wall.

Description

Thermoelectric assembly structure of the storage room {PELTIER ELEMENT ASSEMBLY STRUCTURE OF A STORAGE CHAMBER}

1 is a cross-sectional view showing a reservoir using a thermoelectric device according to the prior art,

2 is a cross-sectional view of a thermoelectric device assembly structure of a storage room according to the present invention;

3 is an exploded perspective view of the heating block according to FIG. 2.

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

100: cabinet 102: storage room

110: inner case 120: outer case

130: cold sink 140: heat sink

150: first heat transfer block 152, 162: flange portion

154: coupling portion 156: coupling groove

160: second heat transfer block 164: coupling projection

170: thermoelectric element 172: insulating grease

180: screw 190: insulation wall

The present invention relates to a cold and warm storage cell using a thermoelectric element, and more particularly, to a thermoelectric element assembly structure of a storage cell that can be easily installed and maintained and repaired.

In general, a thermoelectric device is a solid cooling that controls temperature by using a suction and heat generation phenomenon, which occurs at both ends of a device by a peltier effect when a DC current is applied to a module composed of semiconductor devices having different N and P types. That's the way.

Unlike the refrigerant circulation cooling method, this thermoelectric cooling method is a cooling method that does not cause an environmental problem that does not require a mechanical operation part. When a direct current is applied to other N and P types of the thermoelectric element, it is negatively charged. At the junction between the metal and the semiconductor, electrons absorbing thermal energy from the surroundings move into the thermoelectric element and endothermic occurs, and at the positively charged contact, heat is generated by the release of the electron's thermal energy, which is called the Peltier effect.

The thermoelectric element using the Peltier effect can control the amount and direction of endotherm and heat generation by the magnitude and direction of the current, and because there is no mechanical part, the installation position or direction does not affect the operation. It is widely used to make heating devices.

Therefore, Kimchi refrigerators, small refrigerators, vehicle cold, hot refrigerators, thermo-hygrostats, dehumidifiers, grain storage, cosmetics storage, medical thermostats, etc. are used for the storage using thermoelectric elements.

On the other hand, in these products, various types of cooling and heat dissipation devices are known to absorb heat generated from the thermoelectric element or quickly discharge them to the outside, and heat sinks and cold sinks are commonly used. Mainly used as a device having a heat dissipation structure using a heat sink and a cold sink, an example of a refrigerator will be described in FIG. 1 as follows.

The cabinet 1 of the refrigerator includes an inner case 10 for forming the storage compartment 2 and an outer case 20 coupled to surround the inner case 10 and an inner case for insulating the storage compartment 2 from the outside. 10) and an insulating wall 30 provided between the outer case 20.

The heat transfer space 40 is formed in the heat insulation wall 30, and the thermoelectric element 50 is installed in the heat transfer space 40. And a cold sink 60 is disposed on one surface of the heat transfer space 40, that is, the storage compartment 2 side to absorb and cool heat from the surroundings, and heat from the surroundings to the outer case 20 side of the heat transfer space 40. A heat sink 70 for emitting the heat is installed.

Meanwhile, in order to assemble the heat sink 70 to the thermoelectric element 50, an aluminum plate 52 having a thin thickness is disposed between the thermoelectric element 50 and the heat sink 70, which is the aluminum plate 52. Both sides of the are attached to the thermoelectric element 50 and the heat sink 70 by the heat transfer grease 54, respectively.

In addition, an electrothermal grease 54 is attached between the thermoelectric element 50 and the heat transfer space 40 and between the heat transfer space 40 and the cold sink 60.

The cold sink 60 is screwed to the heat transfer space 40, and the heat sink 70 is screwed to the heat insulation wall 30. Moreover, the cooling fan 80 for improving the absorption of heat is provided in the front side of the cold sink 60. As shown in FIG.

In the refrigerator, when a current is applied to the thermoelectric element 50, the cold sink 60 attached to the front surface of the thermoelectric element 50 that absorbs and absorbs heat absorbs heat.

That is, as the surface of the cold sink 60 attached to the cold side of the thermoelectric element 50 cools, the storage compartment 2 is cooled. At this time, heat loss is prevented by the heat insulation wall 30.

The heat emitted from the other surface of the thermoelectric element 50 is absorbed by the heat sink 70 and simultaneously emitted to the outside.

By the way, the storage using the conventional thermoelectric element 50 configured as described above is the thermoelectric element 50 and the heat transfer space 40, and the heat transfer grease 54 is applied between the cold sink 60 and the heat sink 70 There is a problem that the assembly process takes a lot of time due to the heat treatment process several times when using, and the assembly process made by hand takes a lot of time.

In addition, if the thermal insulation wall 30 is foamed after installation of the thermoelectric element 50, there is a problem that the repair of the thermoelectric element 50 is impossible.

The present invention has been made to solve the above-described drawbacks, and by installing the heat transfer block containing and sealing the thermoelectric element, as well as improving the assembly and durability of the thermoelectric element, as well as the maintenance of the thermoelectric element after foaming of the insulating wall and It is an object of the present invention to provide a thermoelectric assembly structure of a storage reservoir that can be repaired.

In the present invention for achieving the above object, in the thermoelectric element assembly structure of the cold sink is disposed inside the inner case, and the heat sink is disposed outside the outer case facing the cold sink, the cold sink is arranged inside A first heating block and a second heating block including a thermoelectric element are connected and installed between the case and the outer case in which the heat sink is disposed, and the urethane material is disposed between the inner and outer cases with the first and second heating blocks. Insulating wall is provided to provide a thermoelectric element assembly structure of the reservoir that can maintain the thermoelectric element as a second heat transfer block that can be removed even after the foaming of the insulating wall.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a cross-sectional view of the thermoelectric element assembly structure of the reservoir according to the present invention, Figure 3 is an exploded perspective view of the heat transfer block according to FIG.

As shown in FIG. 2, the storage compartment includes a cabinet 100, an inner case 110 for forming a storage compartment 102 into the cabinet 100, and an outer case coupled to surround the inner case 110. It is composed of 120 large.

Here, a cold sink 130 for absorbing and cooling heat from the surroundings is disposed on the inner side of the inner case 110, that is, the storage compartment 102, and the outer case 120 facing the cold sink 130 from the surroundings. A heat sink 140 for dissipating heat is disposed.

And the first heat transfer block 150 is installed to the outside of the inner case 110 in which the cold sink 130 is disposed in accordance with the features of the present invention, and the inside of the outer case 120 in which the heat sink 140 is disposed. The second heating block 160 is installed.

The first heat transfer block 150 shown in FIG. 3 has a polygonal or circular shape that forms a space therein, and a flange portion 152 that is in close contact with the inner case 110 is formed at one end thereof, and is formed on an outer circumferential surface thereof. Coupling portion 154 is formed to protrude, the coupling portion 154 is formed with a plurality of coupling grooves 156.

In addition, the second heat transfer block 160 has a polygonal or circular shape having an inner space that may include the first heat transfer block 150, and closely adheres to the outer case 120 like the first heat transfer block 150. A flange portion 162 may be formed, and the other end of the flange portion 162 is formed in a hook shape to be inserted into a corresponding coupling groove 156. In addition, a thermoelectric element 170 that is coated and attached to the insulating grease 172 is installed in the inner space of the second heat transfer block 160.

Therefore, the coupling of the first heat transfer block 150 and the second heat transfer block 160 is made by fitting the hook-shaped coupling protrusion 164 into the defect groove 156, the plan of the first heat transfer block 150 Branch 152 is integrally coupled to the cold sink 130 as a fastening means through the inner case 110. In addition, the flange 162 of the second heat transfer block 160 is integrally coupled to the heat sink 140 via the outer case 120 as a fastening means.

In this case, the fastening means may be a screw 180 or the like, and the first and second heat transfer blocks 150 and 160 are preferably made of a synthetic resin material.

On the other hand, after the installation of the unitary first heat transfer block 150 and the second heat transfer block 160, leaving the first heat transfer block 150 and the second heat transfer block 160, the inner and outer case 110 The heat insulation wall 190 is foamed between the 120. The heat insulation wall 190 is made of a urethane material.

Referring to the operation of the thermoelectric element assembly structure of the reservoir according to the present invention configured as described above are as follows.

Referring back to Figure 2, first, the flange portion 152 of the first heat transfer block 150 abuts on the outer surface of the inner case 110, the cold sink disposed on the storage compartment 102 side of the inner case 110 ( 130 is coupled to the first heat transfer block 150 by the screw 180.

The second heat transfer block 160 including the thermoelectric element 170 attached to the heat transfer grease 172 therein is coupled to the first heat transfer block 150. The coupling is achieved by fitting the coupling protrusion 164 of the second heating block 160, including a portion of the first heating block 150, into the coupling groove 156 of the first heating block 150.

In addition, the heat sink 140 is fastened to the flange 162 of the second heat transfer block 160 via the outer case 120.

In the state in which the first and second heat transfer blocks 150 and 160 are coupled as follows, the insulation wall 190 made of urethane is foamed in the space of the inner and outer cases 110 and 120.

As described above, the thermoelectric element assembly structure of the storage unit includes a thermoelectric element 170 by combining the second heat transfer block 160 to which the thermoelectric element 170 is attached in advance, and the first heat transfer block 150 to the second heat transfer block 160. Installation of the 170 is simple, and the thermoelectric element 170 is sealed to improve durability.

In addition, the urethane is prevented from penetrating the inside of the urethane foam of the heat insulation wall 190 by the first and second heat transfer blocks 150 and 160, and even after the heat insulation wall 190 is foamed, the heat sink 140. By separating the, and by removing the coupling protrusion 164 of the second heating block 160 from the coupling groove 156 and separating the thermoelectric element 170, there is an advantage that can be easily repaired.

In the above description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

As described above, in the present invention, the thermoelectric element assembly structure of the reservoir includes a thermoelectric element that includes and seals the thermoelectric element, thereby improving the assembling and durability of the thermoelectric element as well as maintaining the thermoelectric element even after foaming of the insulation wall. And repairable effect.

Claims (10)

delete delete delete delete delete In the thermoelectric element assembly structure of the cold sink disposed inside the inner case, and the heat sink is disposed outside the outer case facing the cold sink, Between the inner case where the cold sink is disposed and the outer case where the heat sink is disposed, a second heating block including a first heating block and the thermoelectric element therein is connected and installed. A urethane insulating wall is installed between the inner and outer cases with the first and second heat transfer blocks, A thermoelectric element assembly structure of a storage room in which the thermoelectric element can be maintained as the second heat transfer block that is detachable even after foaming of the insulating wall. The method of claim 6, A coupling groove is formed on an outer circumferential surface of the first heat transfer block, and a coupling protrusion is formed on the second heat transfer block so that the coupling groove can be fitted into the coupling groove. The thermoelectric element assembly structure of the reservoir, characterized in that the first heating block and the second heating block is coupled. The method of claim 6, In the flange portion formed on the first heat transfer block, the thermoelectric element assembly structure of the storage compartment, characterized in that for coupling the first heat transfer block and the cold sink through the inner case via a fastening means. The method of claim 6, The flange portion formed on the second heat transfer block, the thermoelectric element assembly structure of the storage compartment, characterized in that for coupling the second heat transfer block and the heat sink by a fastening means via the outer case. The method of claim 6, The thermoelectric element assembly structure of the storage cell, characterized in that the thermoelectric element which is located inside the second heat transfer block is applied by applying an insulating grease.

Images