KR20240051566A - Thermoelectric module unit - Google Patents

Abstract

The present invention relates to a thermoelectric element unit, and the present invention further applies a fixed position fixing frame provided as a 'ㄷ' shaped frame with binding hooks formed on both lower surfaces, thereby fastening the fixed position fixing frame to the cold conductive plate. By fixing the thermoelectric element in the correct position in the inner area of the fixed position frame, it is possible to easily attach it to the correct position with respect to the position where the thermoelectric element is attached to the cold conductive plate. Through this, the defect rate of the product is minimized and the product quality is improved. Productivity can be significantly increased, while more permanent fastening bolts are applied, and at the same time, a fixing structure for fixing the permanent fastening bolts is applied separately from the fixing part for fixing the heat sink, thereby facilitating the epoxy adhesion process of the thermoelectric element housing and the heat conduction plate. Even after completion, a separate permanent fastening bolt and a fixing structure for fixing the permanent fastening bolts are applied along with epoxy, and the close assembly of the thermoelectric element and the thermoelectric element housing can be maintained more stably by this fixing structure and permanent fastening bolts. .

Description

Thermoelectric module unit}

The present invention relates to a thermoelectric element unit, and more specifically, by applying a fixed position fixing frame provided as a 'ㄷ' shaped frame with binding hooks formed on both lower surfaces, the fixed position fixing frame is fixed with a cold conductive plate. By fixing the thermoelectric element in the correct position in the inner area of the fixed position frame, it is possible to easily attach it to the correct position with respect to the position where the thermoelectric element is attached to the cold conductive plate. Through this, the defect rate of the product is minimized and the product is maintained at the same time. Productivity can be significantly increased, while more permanent fastening bolts are applied, and at the same time, a fastening structure to fasten the permanent fastening bolts separately from the fastening part for fastening the heat sink is applied, thereby improving the epoxy adhesion process of the thermoelectric element housing and the heat conduction plate. Even after this is completed, a separate permanent fastening bolt and a fixing structure are applied along with epoxy to secure the permanent fastening bolts, so that the close assembly of the thermoelectric element and the thermoelectric element housing can be maintained more stably by this fixing structure and permanent fastening bolts. It concerns a thermoelectric element unit.

In general, thermoelectric elements are an environmentally friendly cooling method that breaks away from the existing cooling method of operating a compressor to circulate refrigerant. Although small, both sides of the thin-plate thermoelectric element made of ceramic material provide cooling and heat dissipation simply by switching electrodes. As a part that performs simultaneously, it forms a unit with the blocks attached to it and is currently widely used in the heat exchange industry.

As already explained, the thermoelectric element as described above has the characteristic of cooling one side when power is supplied and dissipating heat on the other side so that this cooling state can be maintained.

Therefore, the more efficiently the heat dissipation on the other side progresses, the lower the temperature of the cooling surface becomes.

Therefore, the cooling efficiency of the thermoelectric element unit is determined by the fact that the heat dissipation surface of the thermoelectric element is smoothly dissipated, lowering the temperature, and in addition, the low temperature of the cooling surface is transmitted to the object to be cooled without heat loss.

Figure 1 is a separated plan perspective view showing a thermoelectric element unit according to the prior art, and Figure 2 is an assembled perspective view showing a thermoelectric element unit according to the prior art.

Referring to Figures 1 and 2, the thermoelectric element unit 500 according to the prior art includes a thermoelectric element housing 510, a cold conductive plate 520, a thermoelectric element 530, and a heat conduction plate 540.

At this time, the thermoelectric element housing 510 is provided in a rectangular frame shape, and an inward restraining rib 511 protrudes at a certain length at the rear end of the internal space.

In addition, the cold conductive plate 520 is inserted and seated from the front, which is the other side of the thermoelectric element housing 510, and the locking steps 521 protruding outward on both sides in the width direction of the front restrain the thermoelectric element housing 510. The rib 510 and the elastic spring 510a are interposed and come into close contact.

In particular, the back of the cold conductive plate 520 as described above is exposed to the outside from the thermoelectric element housing 510 and is placed in close contact with the object to be cooled.

The thermoelectric element 530 is inserted and installed inside the thermoelectric element housing 510, and the rear side, which is on the heat absorbing side, is in close contact with the front of the cold conductive plate 520, so that cold air is transmitted to the object to be cooled.

In addition, the back of the heat conduction plate 540 is in close contact with the front, which is the heating side of the thermoelectric element 530, and conducts heat generated from the thermoelectric element 530 through a heat sink (not shown) connected and installed in contact with the front. .

At this time, the heat sink (not shown), although not specifically shown in the drawings, is provided in a plate structure with a plurality of heat sink fins.

In addition, the heat conduction plate 540 inserts the cold conduction plate 520 and the thermoelectric element 530 into the thermoelectric element housing 510, and epoxy as an adhesive is applied to the filling groove 515 formed on the circumference of one side of the thermoelectric element housing 510. After charging, the thermoelectric element 530 side of the thermoelectric element housing 510 is covered to form a single assembly with the thermoelectric element housing 510, the cold conductive plate 520, and the thermoelectric element 530.

The thermoelectric element unit 500, in which the thermoelectric element housing 510, the cold conductive plate 520, the thermoelectric element 530, and the heat conductive plate 540 as described above are assembled to form one assembly, has an epoxy filling groove ( After fixing the thermoelectric element housing 510 and the heat conduction plate 540 with fixing bolts (B1) in a charged state (515), the thermoelectric element housing 510 and the heat conduction plate 540 are bonded to each other with epoxy. An epoxy adhesion process. After this is completed, the fixing bolt (B1) is removed to complete the manufacturing of the thermoelectric unit 500.

As described above, the fixing bolt (B1) is fastened to the portion from which the fixing bolt (B1) has been removed after manufacturing is completed when the thermoelectric unit 500 is fixed to the object to be cooled and the heat sink for heat dissipation is fixed.

In particular, in the conventional thermoelectric element unit 500 as described above, thermal conductive grease is applied to one surface of the cold conductive plate 520 inserted and seated inside the thermoelectric element housing 510 and the opposing surface of the thermoelectric element 530 during the assembly process. Thermal conductive grease is applied to one side of the thermoelectric element 530 to bond it to each other, and heat conductive grease is applied to the other side of the thermoelectric element 530 and the opposing side of the heat conduction plate 540 to bond them to each other.

However, in the conventional thermoelectric element unit as described above, it is difficult to adhere the adhesive position to the correct position relative to the configuration of the thermoelectric element during the process of bonding with thermal conductive grease, and as a result, the adhesive position is not adhered to the correct position, resulting in product defects. There was a problem that caused it.

In addition, in the process of bonding with heat-conducting grease, there was a problem that the productivity of the product was significantly reduced due to the difficult manufacturing process, such as difficulty in adhering the adhesive position to the correct position for the composition of the thermoelectric element.

Moreover, as the fixing bolts are removed after the epoxy adhesion process is completed, the close assembly of the thermoelectric element and the thermoelectric element housing must be maintained using only epoxy, so there is a problem that maintaining the assembled state of the thermoelectric element and the thermoelectric element housing is not stable. there was.

Therefore, it is possible to easily adhere to the correct position on the cold conductive plate of the thermoelectric element. Through this, the defect rate of the product can be minimized and the productivity of the product can be significantly increased, while the epoxy bonding process has been completed. Thereafter, research and development are required for a thermoelectric element unit that can stably maintain the close assembly of the thermoelectric element and the thermoelectric element housing by applying a separate, permanently fastened fixing structure with epoxy.

Korean Patent No. 10-0780734 2007.11.23. registration. Korean Patent No. 10-1372420 2014.03.04. registration. Korean Patent Publication No. 10-2022-0104346 2022.07.26. open.

In order to solve the above problems, the present invention further applies a fixed position fixing frame provided as a 'ㄷ' shaped frame with binding hooks formed on both lower surfaces, thereby fixing the fixed position fixing frame to the cold conductive plate. By fixing the thermoelectric element in the correct position in the internal area of the positioning frame, it is possible to easily attach it to the correct position on the cold conductive plate of the thermoelectric element. Through this, the defect rate of the product is minimized and the productivity of the product is increased. The purpose is to provide a thermoelectric element unit that can significantly increase.

Another purpose of the technology according to the present invention is to apply permanent fastening bolts and at the same time apply a fixing structure for fixing the permanent fastening bolts separately from the fixing part for fixing the heat sink, so that the epoxy adhesion process of the thermoelectric element housing and the heat conduction plate is completed. Afterwards, a separate permanent fastening bolt and a fixing structure for fixing the permanent fastening bolts were applied along with epoxy, so that the close assembly of the thermoelectric element and the thermoelectric element housing can be maintained more stably by this fixing structure and permanent fastening bolts. .

The present invention for achieving the above-mentioned object is as follows. That is, the thermoelectric element unit according to the present invention is provided in a rectangular frame shape, with inward restraining ribs protruding at a certain length on both sides of the bottom of the internal space, fixing protrusions projecting upward in a cylindrical shape are formed on all sides around the upper surface, and a front peripheral portion. A thermoelectric element housing in which a filling groove in which the adhesive means is filled is recessed along the housing; It is inserted and seated from the top of the thermoelectric element housing, and the lower surface of the locking end, which protrudes outwardly on both sides in the width direction of the upper part, is in close contact with the restraining rib of the thermoelectric element housing with an elastic spring interposed between them, and the lower surface is external from the thermoelectric element housing. A cold conductive plate exposed and placed in close contact with the object to be cooled; A thermoelectric element that is inserted and installed inside the thermoelectric element housing, and whose lower surface, which is on the heat absorbing side, is in close contact with the upper surface of the cold conductive plate, so that cold air is transmitted to the object to be cooled; Heat sink fixing holes into which the fixing protrusions of the thermoelectric element housing are inserted and fixed are formed through the four corners, so that the lower surface is in close contact with the upper surface, which is the heating side of the thermoelectric element, and the heat generated from the thermoelectric element is dissipated through a heat sink connected and installed in contact with the upper surface. Conduct the heat to the outside, insert the cold conductive plate and the thermoelectric element into the thermoelectric element housing, fill the charging groove of the thermoelectric element housing with the adhesive means, and then cover the thermoelectric element side of the thermoelectric element housing to connect the thermoelectric element housing and the thermoelectric element housing by the adhesive means. Heat conduction plates bonded together; And it is provided as a 'ㄷ' shaped frame with an internal space corresponding to the area of the thermoelectric element, and includes a fixed position fixing frame that is seated and fixed on the upper part of the cold conductive plate and is closely adhered to the correct position on the upper cold conductive plate of the thermoelectric element. It consists of:

At this time, the fixed position fixing frame is seated on the upper part of the cold conductive plate, and tie hooks are formed on both lower surfaces of the open and closed parts so that it can be fixed without floating, and a pair of tie hooks are provided on each side. It is preferable that it is fastened to both ends of the longitudinal direction of the stopping end of the cold conductive plate.

Moreover, the fixed position fixing frame is designed to prevent the thermoelectric element from escaping toward the opening,

It is preferable that the inward restraining protrusions are formed to protrude further from both sides of the opening.

In addition, the thermoelectric element unit inserts and seats a cold conductive plate on which a fixed position fixing frame is secured to the upper surface of the thermoelectric element housing, applies thermal grease to the upper surface of the cold conductive plate corresponding to the inner area of the fixed position fixing frame, and then attaches the thermoelectric element. After seating the cold conductive plate in the area corresponding to the inner area of the fixed position frame on the top of the cold conductive plate, applying heat conductive grease to the upper surface of the thermoelectric element, filling the filling groove of the thermoelectric element housing with adhesive means, and covering the heat conduction plate with the heat conduction plate. It is preferable to assemble to form one assembly by assembling them so that they are mutually fixed with permanent fastening means on all four sides.

At this time, it is preferable that thermal conductive grease is further applied to the lower surface of the thermoelectric element, and to a certain area of the lower surface corresponding to the area where the upper surface of the thermoelectric element of the heat conductive plate is in close contact.

In addition, the permanent fastening fixing means allows the thermoelectric element housing and the heat conduction plate to be fixed through a permanent fastening member separate from the fixing bolt fixed through the heat sink fixing hole of the thermoelectric element unit. With a fastening hole formed through the side, a fastening groove recessed on one side of the fixing protrusion of the thermoelectric element housing, and the heat conduction plate in close contact with the upper part of the thermoelectric element housing, the lower side is fastened and fixed to the fastening groove through the fastening hole with a screw connection structure. It is desirable that it be composed of permanent fastening bolts.

In addition, when fastening and fixing the permanent fastening bolt, the head of the permanent fastening bolt is buried in the fastening hole of the heat conduction plate and is not exposed to the outside, so that the fastening hole has a diameter corresponding to the head diameter of the permanent fastening bolt and is tilted downward. After being sunk to a certain depth, it is good for the end to be formed downwardly through the center with a diameter corresponding to the body diameter of the permanent fastening bolt.

The effects of the thermoelectric unit according to the present invention will be described as follows.

First, the fixed position fixing frame is provided as a 'ㄷ' shaped frame with fastening hooks formed on both lower surfaces, and the fixed position fixing frame is fixed to the cold conductive plate to install a thermoelectric element in the inner area of the fixed position fixing frame. By fixing it in the right position, it can be easily adhered to the position where it is glued on the cold conductive plate of the thermoelectric element. Through this, the defect rate of the product can be minimized and the productivity of the product can be significantly increased.

Second, more permanent fastening bolts are applied, and at the same time, a fixing structure for fixing the permanent fastening bolts is applied separately from the fixing part for fixing the heat sink, so that even after the epoxy adhesion process of the thermoelectric element housing and the heat conduction plate is completed, a separate permanent fastening along with the epoxy is maintained. A fixing structure for fixing the fastening bolts and permanent fastening bolts is applied, and the close assembly state of the thermoelectric element and the thermoelectric element housing can be maintained more stably by this fixing structure and permanent fastening bolts.

Figure 1 is an isolated plan perspective configuration diagram showing a thermoelectric element unit according to the prior art.
Figure 2 is an assembled perspective view showing a thermoelectric element unit according to the prior art.
Figure 3 is an isolated plan perspective view showing the thermoelectric element unit according to the present invention.
Figure 4 is an isolated bottom perspective configuration diagram showing a thermoelectric element unit according to the present invention.
Figure 5 is an assembled perspective view showing the thermoelectric element unit according to the present invention.
Figure 6 is an example combined cross-sectional view showing the assembled internal structure of the thermoelectric element unit according to the present invention.
Figure 7 is an example of an assembled state showing the connection structure of the cold conductive plate to the fixed position fixing frame, which is the main part of the thermoelectric element unit according to the present invention.

Hereinafter, a preferred embodiment of the thermoelectric unit according to the present invention will be described in detail with reference to the attached drawings.

Figure 3 is a separate plan perspective view showing the thermoelectric element unit according to the present invention, and Figure 4 is a separate bottom perspective view showing the thermoelectric element unit according to the present invention.

Figure 5 is an assembled perspective view showing the thermoelectric element unit according to the present invention, and Figure 6 is a combined cross-sectional example showing the assembled internal structure of the thermoelectric element unit according to the present invention.

Figure 7 is an example of an assembled state showing the connection structure of the cold conductive plate to the fixed position fixing frame, which is the main part of the thermoelectric element unit according to the present invention.

As shown in Figures 3 to 7, the thermoelectric element unit 100 according to a preferred embodiment of the present invention is a thermoelectric element unit that can be easily glued in position with respect to the position where it is glued on the cold conductive plate of the thermoelectric element, Broadly classified, it includes a thermoelectric element housing 110, a cold conductive plate 120, a thermoelectric element 130, a heat conductive plate 140, and a fixed position fixing frame 150.

Specifically, the thermoelectric element housing 110 is provided in a rectangular frame shape, with inward restraining ribs 111 protruding at a certain length on both sides of the bottom of the internal space, and fixing protrusions 113 protruding upward in a cylindrical shape on all sides around the upper surface. ) is formed.

In addition, the thermoelectric element housing 110 as described above has a filling groove 115 filled with adhesive means recessed along the front peripheral portion.

Moreover, the thermoelectric element housing 110 is provided with an insert nut (N) inside the fixing protrusion 113 through insert injection molding.

At this time, the insert nut (N) is provided inside the fixing protrusion 113 of the thermoelectric element housing 110 through insert injection molding, and the lower surface is preferably exposed to the outside from the thermoelectric element housing 110.

In other words, the insert nut (N) as described above is in close contact with the heat conduction plate 140 with respect to the heat sink (not shown) with the heat sink (not shown) in close contact with the side of the thermoelectric element housing 110 where the heat conduction plate 140 is in close contact. It is used to secure the fixing bolt (not shown) by screwing it into place.

Meanwhile, the cold conductive plate 120 is inserted and seated from the upper part of the thermoelectric element housing 110, and the lower surface of the locking end 121 protruding outwardly on both sides in the width direction of the upper portion is a restraining rib of the thermoelectric element housing 110. An elastic spring (110a) is interposed between (111) and is in close contact.

The lower surface of the cold conductive plate 120 is exposed to the outside from the thermoelectric element housing 110 and is placed in close contact with an object to be cooled (not shown).

At this time, the cooling object (not shown) is an object for cooling by fixing and installing the cold conductive plate 120 in close contact when the thermoelectric element unit 100 is fixedly installed. For example, it can be applied as a water tank cover of a cold water tank, etc. .

In addition, the thermoelectric element 130 is inserted and installed inside the thermoelectric element housing 110, and the lower surface on the heat absorbing side is in close contact with the upper surface of the cold conductive plate 120 to transmit cold air to the object to be cooled.

This thermoelectric element 130 is connected to two wires like a normal thermoelectric element, and these wires are connected to the wire installation groove (not shown) of the thermoelectric element housing 110 with the element body portion inserted and installed in the thermoelectric element housing 110. It is desirable to maintain the externally retrieved state through the code).

In addition, the heat conduction plate 140 has heat sink fixing holes 141 through which the fixing protrusion 113 of the thermoelectric element housing 110 is inserted and fixed, formed through penetrating edges on all four sides, and the lower surface is the upper surface of the thermoelectric element 130 on the heat-generating side. adheres closely to

This heat conduction plate 140 conducts heat generated from the thermoelectric element 130 through a heat sink (not shown) installed in contact with the upper surface to dissipate heat to the outside, and a cold conductive plate 120 within the thermoelectric element housing 110. ) and the thermoelectric element 130 are inserted and the adhesive means is filled into the filling groove 115 of the thermoelectric element housing 110, and then the thermoelectric element 130 side of the thermoelectric element housing 110 is covered and the thermoelectric element is attached by the adhesive means. It is bonded to the housing 110.

At this time, the adhesive means is preferably epoxy, and this epoxy is heated under the conditions of a certain temperature and a certain time to bond the thermoelectric element housing 110 and the heat conduction plate 140 to each other.

Meanwhile, the fixed position fixing frame 150 is provided as a 'ㄷ' shaped frame with an internal space corresponding to the area of the thermoelectric element 130, and is seated and fixed on the upper part of the cold conductive plate 120 to secure the thermoelectric element ( This is to ensure that it is in close contact with the upper part of the cold conductive plate 120 of 130).

In particular, it is important that the fixed position fixing frame 150 can be fixed without floating while seated on the upper part of the cold conductive plate 120.

For this purpose, the fixed position fixing frame 150 has fastening hooks 151 formed on both lower surfaces of the open portion (not marked) and the closed portion (not marked), and a pair of fastening hooks 151 on each side. It is preferable that the cold conductive plate 120 is fixed to both longitudinal ends of the locking end 121 through .

It is also important that the fixed position fixing frame 150 as described above prevents the thermoelectric element 130 from leaving the open portion.

Accordingly, it is more desirable for the fixed position fixing frame 150 to have more inward restraining protrusions 153 protruding from both sides of the open portion (not indicated).

The open portion (unmarked) in the fixed positioning frame 150 as described above refers to the open portion of the 'ㄷ' shaped frame, and the restraining protrusion 153 has a 'ㄷ' shaped frame. It is desirable for the frame to have a width and thickness equal to the width of the frame and to protrude in a small length from both ends of the opening.

Meanwhile, the thermoelectric element unit 100 according to the present invention, which is configured as described above, inserts and seats the cold conductive plate 120 on which the fixed position fixing frame 150 is seated and fixed on the upper surface of the thermoelectric element housing 110, After applying thermal grease to the upper surface of the cold conductive plate 120 corresponding to the inner area of the fixed position fixing frame 150, the thermoelectric element 130 is placed in correspondence with the inner area of the fixed position fixing frame 150 on the top of the cold conductive plate 120. After seating the thermoelectric element 130 in the upper surface of the thermoelectric element 130, heat conductive grease is applied to the filling groove 115 of the thermoelectric element housing 110 and the heat conductive plate 140 is covered with the adhesive means. 140) are manufactured to form one assembly by assembling them on all four sides to be mutually fixed with permanent fastening means.

During the manufacturing process of the thermoelectric element unit 100 manufactured with the above assembly, thermal conductive grease is further applied to the lower surface of the thermoelectric element 130, and the upper surface of the thermoelectric element 130 of the thermal conductive plate 140 is in close contact with the thermoelectric element 100. It is more desirable for more heat conductive grease to be applied to a certain area corresponding to the zero area.

In addition, in the thermoelectric element unit 100 according to the present invention configured as described above, the permanent fastening means is separate from the fixing bolt fixed through the heat sink fixing hole 141 of the thermoelectric element unit 100. The thermoelectric element housing 110 and the heat conduction plate 140 can be fixed through a permanent fastening member, and is composed of a fastening hole 143, a fastening groove 117, and a permanent fastening bolt (B).

In detail, the fastening hole 143 is formed through one side of the heat sink fixing hole 141 of the heat conduction plate 140.

And the fastening groove 117 is recessed on one side of the fixing protrusion 113 of the thermoelectric element housing 110.

In addition, the permanent fastening bolt (B) is fastened with a screw structure on the lower side to the fastening groove 117 through the fastening hole 143 with the heat conduction plate 140 in close contact with the upper part of the thermoelectric element housing 110. will be.

In particular, when fastening and fixing the permanent fastening bolt (B) as described above, it is important to ensure that the head of the permanent fastening bolt (B) is embedded in the fastening hole 143 of the heat conduction plate 140 and is not exposed to the outside. .

Therefore, the fastening hole 143 has a diameter corresponding to the head diameter of the permanent fastening bolt (B), is depressed downward to a certain depth, and then has a diameter corresponding to the body diameter of the permanent fastening bolt (B) at the center. It is more preferable to have a downward penetrating formation.

According to the thermoelectric element unit according to the present invention configured as described above, a fixed position fixing frame provided as a 'ㄷ' shaped frame with binding hooks formed on both lower surfaces is further applied, thereby forming a fixed position fixing frame with a cold conductive plate. By bonding and fixing the thermoelectric element in the inner area of the fixed position frame, it is possible to easily attach it to the correct position with respect to the position where the thermoelectric element is attached to the cold conductive plate, thereby minimizing the defect rate of the product. At the same time, product productivity can be significantly increased.

Moreover, more permanent fastening bolts are applied, and at the same time, a fastening structure to fasten the permanent fastening bolts separately from the fastening part for fastening the heat sink is applied, so that even after the epoxy adhesion process of the thermoelectric element housing and the heat conduction plate is completed, a separate permanent fastening along with the epoxy is maintained. A fixing structure for fixing the fastening bolts and the permanent fastening bolts is applied, and the close assembly state of the thermoelectric element and the thermoelectric element housing can be maintained more stably by this fixing structure and the permanent fastening bolts.

Although specific embodiments of the present invention have been described in detail above, the present invention is not limited thereto, and the present invention can be implemented in various modifications by those skilled in the art in the technical field to which the present invention pertains. is included in the scope of the present invention.

100: Thermoelectric element unit
110: thermoelectric element housing 111: restraint rib
113: fixing protrusion 115: charging groove
117: Fastening groove 110a: Elastic spring
120: Cold conductive plate 121: Locking end
130: thermoelectric element 140: heat conduction plate
141: heat sink fixing hole 143: fastening hole
150: Fixed position fixing frame 151: Binding hook
153: Restraint protrusion
B: Permanent fastening bolt
N: Insert nut

Claims (7)

It is provided in a rectangular frame shape, with inward restraining ribs 111 protruding at a certain length on both sides of the bottom of the internal space, and fixing protrusions 113 protruding upward in a cylindrical shape are formed on all sides around the upper surface, and are bonded along the front circumference. A thermoelectric element housing (110) in which a charging groove (115) in which the means is charged is recessed;
It is inserted and seated from the top of the thermoelectric element housing 110, and the lower surface of the locking end 121 protruding outwardly on both sides in the width direction of the upper portion is provided with an elastic spring ( 110a) is interposed and in close contact with the cold conductive plate 120, the lower surface of which is exposed to the outside from the thermoelectric element housing 110 and placed in close contact with the object to be cooled;
A thermoelectric element 130 that is inserted and installed inside the thermoelectric element housing 110, and whose lower surface, which is on the heat absorbing side, is in close contact with the upper surface of the cold conductive plate 120, so that cold air is transmitted to the object to be cooled;
The heat sink fixing hole 141, into which the fixing protrusion 113 of the thermoelectric element housing 110 is inserted and fixed, is formed through the four corners, so that the lower surface is in close contact with the upper surface, which is the heating side of the thermoelectric element 130, and is in contact with the upper surface. The heat generated from the thermoelectric element 130 is conducted through the connected heat sink to be dissipated to the outside. The cold conductive plate 120 and the thermoelectric element 130 are inserted into the thermoelectric element housing 110, and the adhesive means is applied to the thermoelectric element. A heat conduction plate 140 that covers the thermoelectric element 130 side of the thermoelectric element housing 110 and is bonded to the thermoelectric element housing 110 by an adhesive means after filling the charging groove 115 of the housing 110; and
It is provided as a 'ㄷ' shaped frame with an internal space corresponding to the area of the thermoelectric element 130, and is seated and fixed on the upper part of the cold conductive plate 120 to secure the upper part of the cold conductive plate 120 of the thermoelectric element 130. A thermoelectric element unit including a fixed position fixing frame (150) that is closely adhered to the position.
According to paragraph 1,
The fixed position fixing frame 150 is seated on the upper part of the cold conductive plate 120 so that it can be fixed without floating,
Binding hooks 151 are formed on both lower surfaces of the open and closed parts, and are fastened to both ends in the longitudinal direction of the locking end 121 of the cold conductive plate 120 through a pair of binding hooks 151 on each side. A thermoelectric element unit characterized in that.
According to paragraph 2,
The fixed position fixing frame 150 is designed to prevent the thermoelectric element 130 from escaping toward the opening,
A thermoelectric element unit characterized in that inward restraining protrusions (153) are further protruded from both sides of the opening portion.
According to paragraph 1,
The thermoelectric element unit 100 inserts and seats a cold conductive plate 120 on which a fixed position fixing frame 150 is seated and fixed on the upper surface of the thermoelectric element housing 110,
After applying heat conductive grease to the upper surface of the cold conductive plate (120) corresponding to the inner area of the fixed position fixing frame (150),
The thermoelectric element 130 is seated in the area corresponding to the inner area of the fixed position fixing frame 150 on the upper part of the cold conductive plate 120, and thermal conductive grease is applied to the upper surface of the thermoelectric element 130. Then, the thermoelectric element housing 110 is installed. It is characterized in that it is manufactured to form one assembly by covering the heat conduction plate 140 with the filling groove 115 filled with the adhesive means and assembling them to be mutually fixed with permanent fastening means on all sides of the heat conduction plate 140. A thermoelectric element unit.
According to paragraph 4,
Heat conductive grease is further applied to the lower surface of the thermoelectric element 130,
A thermoelectric element unit, characterized in that thermal conductive grease is further applied to a certain area of the lower surface corresponding to the area where the upper surface of the thermoelectric element 130 of the heat conductive plate 140 is in close contact.
According to paragraph 4,
The permanent fastening means is,
The thermoelectric element housing 110 and the heat conduction plate 140 can be fixed through a permanent fastening member separate from the fixing bolt fixed through the heat sink fixing hole 141 of the thermoelectric element unit 100,
A fastening hole 143 formed through one side of the heat sink fixing hole 141 of the heat conduction plate 140,
A fastening groove 117 recessed on one side of the fixing protrusion 113 of the thermoelectric element housing 110,
It consists of a permanent fastening bolt (B) whose lower side is fastened with a screw structure to the fastening groove 117 through the fastening hole 143 with the heat conduction plate 140 in close contact with the upper part of the thermoelectric element housing 110. Characteristic thermoelectric element unit.
According to clause 6,
When fastening the permanent fastening bolt (B), the head of the permanent fastening bolt (B) is embedded in the fastening hole 143 of the heat conduction plate 140 so that it is not exposed to the outside.
The fastening hole 143 has a diameter corresponding to the head diameter of the permanent fastening bolt (B), is depressed downward to a certain depth, and has a diameter corresponding to the body diameter of the permanent fastening bolt (B) at the center. A thermoelectric element unit characterized in that it is formed through downward penetration.

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