KR20060086926A - Cooler for central computer terminal - Google Patents

Abstract

The present invention relates to a control panel cooler using a porous tube panel and a thermoelectric element,

An air inlet and an air outlet are formed at one side of the upper heat exchange chamber, and an air inlet and an air outlet are formed at one side of the lower heat exchange chamber at the lower side. An outside air suction fan suctioned into the chamber, an air suction fan installed inside the air intake opening of the case and sucking the hot air inside the control panel into the lower heat exchange chamber, and a plurality of heat exchange functions installed in the case to exchange heat in the upper and lower heat exchange chambers. In the control panel cooler comprising a heat exchanger having a plurality of porous tube panels are arranged at regular intervals and the aluminum louver fin is formed between each of the porous tube panels,

The heat exchanger is formed in a state in which the upper heat exchanger is installed in the state exposed in the upper heat exchange chamber and the lower heat exchanger is installed in the state exposed in the lower heat exchange chamber,

The upper heat exchanger has a lower end of each of the porous tube panels at the lower end of the upper heat exchanger in order to allow a heat exchange operation by repeated action of evaporating and condensing the refrigerant through the plurality of porous holes formed in each of the porous tube panels. The refrigerant header is inserted into the refrigerant storage chamber is stored is formed,

The lower heat exchanger is a heat transfer medium capable of filling a heat transfer medium into a plurality of porous holes formed in each of the porous tube panels at one end selected from the top or bottom of the porous tube panels in order to increase the heat transfer volume of each of the porous tube panels. The header is formed,

Between the lower end of the upper heat exchanger and the upper end of the lower heat exchanger is interposed a thermoelectric element is connected to the N-type semiconductor and P-type semiconductor in series, the endothermic heater sink of the thermoelectric element is the surface contact the top of the lower heat exchanger The invention is characterized in that the brazing welding in the state, the heat generating heat sink of the thermoelectric element is brazed welding in the surface contact state of the lower end of the upper heat exchanger and the refrigerant header connected thereto.

Control panel cooler, heat exchanger, porous tube panel, thermoelectric element, endothermic sink header, exothermic heater sink, heat transfer medium header, refrigerant header

Description

Control panel cooler using porous tube panel and thermoelectric element {Cooler for central computer terminal}

1 and 2 are a front view and a rear view of the control panel cooler of the present invention.

3 is a side cross-sectional view of a control panel cooler for explaining the present invention.

Figure 4 is an embodiment of a heat exchanger of the present invention control panel cooler.

5 is a cross-sectional view taken along the line A-A of FIG.

FIG. 6 is a cross-sectional view taken along the line BB of FIG. 5. FIG.

Figure 7 is a cross-sectional view of a thermoelectric element applied to the heat exchanger of the present invention.

8 is a perspective view of a porous tube panel applied to the heat exchanger of the present invention.

9 is another embodiment of a heat exchanger of the present invention control panel cooler.

10 is a cross-sectional view taken along the line C-C in FIG.

※ Explanation of code for main part of drawing

1: control panel cooler 1a: upper heat exchange chamber

1b: lower heat exchange chamber 10: case

11: outside air intake 12: outside air outlet

13: bet outlet 14: bet outlet

17: upper air induction plate 18: lower air induction plate

2a: air suction fan 2b: air suction fan

3: heat exchanger 3a, 3b: upper and lower heat exchanger

4a, 4b: porous tube panel 41: porous hole

42: aluminum louver fin 5: thermoelectric element

5a: endothermic heater sink 5b: exothermic heater sink

51: heat absorbing portion 52: heat generating portion

6: refrigerant header 61: refrigerant storage chamber

7a, 7b: heat transfer header 71: heat transfer chamber

The present invention relates to a control panel cooler for cooling the inside of a control panel in which electrical and electronic circuit devices are installed. More specifically, the inside of the control panel cooler is divided into upper and lower heat exchange chambers, and then each of the upper and lower heat exchange chambers is porous. Means for installing the upper and lower heat exchangers each consisting of a tube panel to heat exchange separately, interposing a thermoelectric element between the heat generating heat sink mounted on the lower part of the upper heat exchanger and the heat absorbing heat sink mounted on the lower heat exchanger. The control panel cooler using a porous tube panel and the thermoelectric element to improve the cooling efficiency of the control panel cooler by improving the heat exchange function of each of the upper and lower heat exchangers.

In general, the existing control panel cooler product that cools the inside of the control panel in which electric parts and electronic circuit devices are installed is configured to cool the inside of the control panel by forcibly cooling the air by circulating a refrigerant through a compressor and then supplying the cooled cold inside the control panel. Since the conventional control panel cooler is expensive and its own weight is heavy, the mounting panel for attaching the control panel cooler should be used as a thick steel plate, which makes manufacturing of the control panel cooler expensive. The disadvantage is that the cooling performance is lower than the expensive price.

In order to solve the above problems, the present inventor has proposed the design of the heat exchanger of the control panel cooler using the porous tube panel of Utility Model Registration No. 357333 (hereinafter referred to as 'prior art').

The above-mentioned prior art divides the inside of the control panel cooler into an outside heat exchange chamber for exchanging heat with the outside air based on the middle bracket installed at an intermediate position, and the bottom side is divided into an inside heat exchange chamber for exchanging heat with the air inside the control panel, and then the outside air. And a heat exchanger made of a porous tube panel so as to be exposed to each of the bet heat exchange chambers, wherein the heat exchanger is heated in which the refrigerant stored in the header pipe is introduced into the control panel in the evaporator exposed to the bet heat exchange chamber. The heat from the evaporation unit is cooled by heat exchange to remove the heat from the evaporator, allowing the cooled air to be supplied to the inside of the control panel, while in the condensation unit exposed to the external heat exchange chamber, the evaporation is exposed to the internal heat exchange chamber. The refrigerant gas evaporated from the heat The liquid refrigerant condensed by the exchange action is configured to cool the inside of the control panel while repeating the action of moving to the evaporator.

However, the prior art as described above has the advantage that the product price is cheaper and lighter than the control panel cooler forcibly circulating the refrigerant through the compressor as in the conventional product, but the heat exchanger itself is controlled at a high speed by the evaporation and condensation of the refrigerant. It is pointed out as a problem that the limit to cool the temperature inside the control panel cannot be lowered to the outside air temperature by transferring the internal high heat and cooling it as the external air. Due to this phenomenon, it is expected that the heat exchange efficiency of the control panel cooler will be improved. It was difficult.

The present invention has been proposed in view of the problems shown in the prior art as described above, the upper and lower heat exchanger to separate the inside of the control panel cooler into upper and lower heat exchange chambers and to heat exchange to each of the upper and lower heat exchange chambers individually. Separately installed, the upper and lower heat exchanger to increase the heat exchange effect by the endothermic and exothermic action of the thermoelectric element to improve the cooling efficiency of the control panel cooler, and also to contact the endothermic portion of the thermoelectric element The heat transfer medium header of the lower heat exchanger welded to the endothermic heater sink and the porous tube panel fill the heat transfer medium having a low freezing point to increase the heat transfer volume to improve the heat transfer efficiency of the endothermic heater sink. On the refrigerant header of the upper heat exchanger welded to the heating heater sink in contact with the heating unit Injects the refrigerant to quickly discharge the heat transferred from the heat generating portion of the thermoelectric element by the evaporation and condensation of the refrigerant, and each of the porous tube panel is installed at a predetermined interval in each of the upper and lower heat exchangers The aluminum ruby fin is interposed between the components to improve the heat exchange efficiency of the control panel cooler, and to form the porous tube panels of the upper and lower heat exchangers in the same structure. The heat exchanger was invented for the purpose of reducing the manufacturing cost of the heat exchanger by enabling mass production by using the U-shaped porous tube panel.

The present invention as a means for achieving the above object,

An air inlet and an air outlet are formed at one side of the upper heat exchange chamber, and an air inlet and an air outlet are formed at one side of the lower heat exchange chamber at the lower side. An outside air suction fan suctioned into the chamber, an air suction fan installed inside the air intake opening of the case and sucking the hot air inside the control panel into the lower heat exchange chamber, and a plurality of heat exchange functions installed in the case to exchange heat in the upper and lower heat exchange chambers. In the control panel cooler comprising a heat exchanger having a plurality of porous tube panels are arranged at regular intervals and the aluminum louver fin is formed between each of the porous tube panels,

The heat exchanger is formed in a state in which the upper heat exchanger is installed in the state exposed in the upper heat exchange chamber and the lower heat exchanger is installed in the state exposed in the lower heat exchange chamber,

The upper heat exchanger has a lower end of each of the porous tube panels at the lower end of the upper heat exchanger in order to allow a heat exchange operation by repeated action of evaporating and condensing the refrigerant through the plurality of porous holes formed in each of the porous tube panels. The refrigerant header is inserted into the refrigerant storage chamber is stored is formed,

The lower heat exchanger is a heat transfer medium header capable of filling a heat transfer medium into a plurality of porous holes formed in each of the porous tube panels at one end selected from the top or bottom of the porous tube panels to increase the heat transfer volume of each of the porous tube panels. Is formed,

Between the lower end of the upper heat exchanger and the upper end of the lower heat exchanger is interposed a thermoelectric element is connected to the N-type semiconductor and P-type semiconductor in series, the endothermic heater sink of the thermoelectric element is the surface contact the top of the lower heat exchanger The brazing is welded in a state, and the heat generating heat sink of the thermoelectric element is brazed in a state in which the lower end of the upper heat exchanger and the refrigerant header connected thereto are in surface contact.

In addition, a plurality of porous tube panels formed at predetermined intervals on each of the upper and lower heat exchangers of the heat exchanger may be formed to be bent in a U shape, and the upper heat exchanger may have upper ends of the porous holes. The bottom heat exchanger is installed in a U-shape so that the bottom is opened, and the opened bottom is connected to the refrigerant storage chamber of the refrigerant header. The lower heat exchanger is a state in which each of the porous tube panels has a lower end of the porous holes. Is formed in a U-shape so as to be opened, and the opened upper end thereof is connected to the heat transfer medium charging chamber of the heat transfer medium header, and the upper end of the lower heat exchanger and the heat transfer medium header connected thereto are endothermic heaters of the heat transfer element. It is characterized in that the brazing welding in surface contact with the sink.

In addition, each of the plurality of porous tube panels formed at a predetermined interval of the heat exchanger of the heat exchanger is brazed and welded in surface contact with the endothermic heater sink of the thermoelectric element while the upper ends of the porous holes are connected. The lower end of the porous hole is characterized in that the heat transfer medium header is formed so as to be connected to the heat transfer medium charging chamber in a U-shaped state to be opened.

In addition, the plurality of porous tube panels formed at predetermined intervals in the lower heat exchanger of the lower heat exchanger and the heat transfer medium filled in the heat transfer medium header connected to the upper or lower end thereof are fluids selected from distilled water or water having a low freezing point. do.

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

1 and 2 are a front view and a rear view of the control panel cooler of the present invention, Figure 3 is a side cross-sectional view of the control panel cooler for explaining the present invention, Figure 4 is an embodiment of a heat exchanger of the control panel cooler of the present invention, 5 is a cross-sectional view taken along the line AA of Figure 4, Figure 6 is a cross-sectional view taken along the line BB of Figure 5, Figure 7 is a cross-sectional configuration of the thermoelectric element applied to the heat exchanger of the present invention, Figure 8 is applied to the heat exchanger of the present invention 9 is a perspective view of the porous tube panel, and FIG. 9 is another embodiment of the heat exchanger of the control panel cooler of the present invention, and FIG. 10 is a sectional view taken along the line CC of FIG.

Reference numeral 1 denotes a control panel cooler. The control panel cooler 1 is divided into upper and lower heat exchange chambers 1a and 1b inside the case 10, and the case of the upper heat exchange chamber 1a. 10, the outside air inlet 11 and the outside air outlet 12 are formed in the upper front side, the outside air is sucked in and discharged, and each of the outside air inlet 11 and the outside air outlet 12 is the intake and discharge of wind The fan cover is formed with a through hole for guiding the direction.

In the lower part of the rear surface of the lower heat exchange chamber 1b, an air inlet 13 and an air outlet 14 are formed in communication with an inside of a control panel (not shown) to draw and discharge air. Each of the inlet 13 and the air outlet 14 has a fan cover for inducing the direction of intake and discharge of the wind.

In the upper heat exchange chamber 1a, an outside air suction fan 2a for sucking outside air is mounted inside the outside air suction opening 11, and the lower heat exchange chamber 1b is used for sucking air inside the control panel. The intake air suction fan 2b is mounted inside the intake air inlet 13.

In addition, a front surface of the case 10 of the control panel cooler 1 is attached with a sensor for detecting temperature and humidity inside the power switch 15 and the lower heat exchange chamber and a temperature and humidity display and a setter 16 for displaying temperature and humidity. An upper middle heat exchange chamber is disposed at an inner middle portion of the control panel cooler 1 while blocking external air sucked into the upper heat exchange chamber 1a by the external air suction fan 2a from flowing into the lower heat exchange chamber 1b. 1a) Blocking the upper outside air induction plate 17 which guides to flow inside and control panel internal air sucked into the lower heat exchange chamber 1b by the above-described air suction fan 2b from flowing to the upper heat exchange chamber 1a. At the same time, a lower inner air guide plate 18 is formed to guide the inner side of the lower heat exchange chamber 1b.

Inside the control panel cooler 1, a heat exchanger 3 for cooling the inside of the control panel is mounted. The heat exchanger 3 includes an upper heat exchanger 3a and a lower heat exchanger chamber installed in the upper heat exchange chamber 1a. And a thermoelectric element 5 interposed between the lower heat exchange chamber 3b installed at (1b) and the lower end of the upper heat exchanger 3a and the upper end of the lower heat exchanger 3b. The element 5 is in surface contact with the upper end of the lower heat exchanger 3b to absorb heat from the lower heat exchanger, and the endothermic heater sink 5a is in surface contact with the lower end of the upper heat exchanger 3a. The exothermic heat sink 5b for dissipating heat to the upper heat exchanger is provided.

Each of the upper and lower heat exchangers 3a and 3b of the heat exchanger 3 is provided with a plurality of porous tube panels 4a and 4b installed at regular intervals, and aluminum louvers installed between the porous tube panels. It consists of a pin 42, the porous tube panel (4a) (4b) as shown in Figure 8 is a tube panel extruded from aluminum cut to a predetermined length so that a plurality of holes (41) are formed in a row Next, the U-shaped bent shape is used, and the aluminum louver pin 42 has a structure that can increase the coefficient of friction of air while breaking the boundary layer of the air flow, and bent in a zigzag shape.

In addition, the upper heat exchanger (3a) is a range in which the upper portion of the upper heat exchanger (3a) does not significantly deviate from the outside air suction fan (2a) so that the heat exchange action with the external cold air sucked from the outside air suction fan (2a) can be actively performed It is provided in close proximity to the outside air suction fan 2a, and is inclined so as to facilitate the movement of the refrigerant.

In addition, in the case of the lower heat exchanger 3b, the lower portion of the lower heat exchanger 3b does not significantly deviate from the intake suction fan 2b in order to facilitate a heat exchange effect with hot air sucked from the intake suction fan 2b. The inside of the intake suction fan 2b is provided in close proximity, and the lower heat exchanger 3b is also inclined at the same inclination angle as the upper heat exchanger 3a.

On the other hand, the bottom side of the case 10 is formed with a condensate discharge pipe 19 for discharging the condensed water is condensed in the lower heat exchange chamber (1b).

Each of the plurality of porous tube panels 4a constituting the upper heat exchanger 3a of the heat exchanger 3 is formed in a U-shape with a curved upper end, and each of the plurality of porous tube panels 4a The lower portion is inserted into and connected to the refrigerant header 6 so as to be connected to the refrigerant storage chamber 61 in which the refrigerant is stored. The upper heat exchanger 3a thus formed is connected to the lower portions of each of the plurality of porous tube panels 4a. Each of the refrigerant headers 6 is brazed and welded in surface contact with the heat generating heat sink 5b of the thermoelectric element 5. The coolant header 6 is provided with a coolant inlet 62 for injecting coolant (see FIGS. 5 and 10).

The plurality of porous tube panels 4b constituting the lower heat exchanger 3b of the heat exchanger 3 have an example in which a lower portion is bent in a U-shape as shown in FIG. 4, and an upper portion as shown in FIG. 9. The portion is divided into the embodiment bent in a U-shape, as shown in Figure 4 in the case of the embodiment where the lower portion of the porous tube panel (4b) is bent in a U-shape, the upper portion of each porous tube panel (4b) is heat transfer The upper portion of each porous tube panel 4b, the upper portion of the aluminum louver fins 42, and the heat transfer medium in a state of being inserted into the media header 7a and connected to the heat transfer medium charging chamber 71 formed therein. The header 7a is brazed and welded in surface contact with the endothermic heater sink 5a of the thermoelectric element 5 as shown in FIGS. 4 and 5.

In the exemplary embodiment in which the upper end portion is bent in a U-shape as shown in FIG. 9, the lower end portion of each of the porous tube panels 4b is inserted to be connected to the heat transfer medium charging chamber 71 of the heat transfer medium header 7b. The lower heat exchanger 3b having the heat transfer medium header 7b connected to the lower ends of the respective porous tube panels 4b is bent in each of the porous tube panels 4b as shown in FIGS. 9 and 10. The upper end portion and the upper end portion of the aluminum louver fins 42 are brazed and welded in surface contact with the endothermic heater sink 5a of the thermoelectric element 5.

The upper heat exchanger 3a of the heat exchanger 3 makes the inside of each of the refrigerant header 6 and the plurality of porous tube panels 4a connected thereto in a vacuum state, and then the refrigerant storage chamber 61 of the refrigerant header 6. A certain amount of refrigerant is injected into the chamber, and the amount of refrigerant is injected in the range of about 20 to 40% based on the cross-sectional area of the refrigerant storage chamber 61. In the case of the lower heat exchanger 3b, a plurality of porous tube panels ( Each of the porous holes 41 and the heat transfer medium charging chamber 71 of the heat transfer medium headers 7a and 7b formed in 4b) is injected with a heat transfer medium filled therein, and the heat transfer medium has a freezing point. Low distilled water is preferred, and water may be charged if distilled water is not ready.

As described above, the heat transfer medium filled in the lower heat exchanger 3b increases the heat transfer volume of the lower heat exchanger 3b so that the endothermic heater sink 5a of the thermoelectric element 5 takes heat away from the lower heat exchanger 3b. Improve endothermic action.

A heat transfer medium inlet 72 for filling the heat transfer medium is formed in each of the heat transfer medium headers 7a and 7b formed at the upper end or the lower end of the lower heat exchanger 3b.

Meanwhile, as described above, the thermoelectric elements 5 installed in the state interposed between the lower end and the upper end of each of the upper and lower heat exchangers 3a and 3b are in contact with the endothermic heater sink 5a as shown in FIG. 7. The N-type semiconductor and the P-type semiconductor are alternately connected in series by the electrode plate 53 between the heat absorbing portion 51 and the invention portion 52 in contact with the heat generating heat sink 5b. In addition, each of the N, P-type semiconductor, the heat absorbing portion 51 and the heat generating portion 52 is formed with an insulating layer 54 coated with an electrically conductive ceramic to prevent a short circuit. In addition, the thermoelectric element 5 is formed with a heat insulating material 55 to surround the outer periphery.

When the voltage is applied to the thermoelectric element 5, the heat absorbing part 51 absorbs heat from the heat absorbing heat sink 5a and discharges it to the heat generating part 52, thereby cooling the lower heat exchanger 3b. The heat generating heat sink head 5b is heated by the heat discharged to the heat generating part 52 to evaporate the coolant stored in the coolant storage chamber 61 of the coolant header 6. 5) is already applied to you, so the specific action on the thermoelectric element will be omitted.

On the other hand, the heat absorbing heat sink 5a and the heat generating heat sink 5b which are assembled in contact with the thermoelectric element 5, its heat absorbing portion 51 and the heat generating portion 52 are provided with a plurality of fixing bolts 8. It is assembled and assembled by (see FIGS. 4, 5, 9 and 10).

The fixing bolt (8) in the above is used as an insulating bolt that is not heat transfer, or instead of the fixing bolt (8) it turns out that a coupling member of a structure such as a clip of insulating material may be used.

The operation of the present invention configured as described above will be described.

In order to cool the inside of the control panel in which the electric and electronic circuit devices are installed, the power switch 15 installed on the front side of the control panel cooler 1 is turned on to inhale the thermoelectric element 5 and the outside air suction of the heat exchanger 3. When power is applied to the fan 2a and the air suction fan 2b according to the temperature and humidity display and the setting conditions of the setter 16, the heat exchanger 3 performs a heat exchange operation.

First, the embodiment shown in FIG. 4 is formed in the lower portion of the plurality of porous tube panels 4b forming the lower heat exchanger 3b of the heat exchanger 3 in a U-shape, and each porous tube panel 4b. The heat transfer medium header 7a is formed to be connected to the upper end of the porous hole 41 formed in the field. When the heat exchange action of this embodiment is described, the thermoelectric elements 5 to which power is applied are connected in series. As the heat absorbing portion 51 absorbs heat by the N and P type semiconductors, the heat absorbing heat sink 5a is cooled, and thus the heat absorbing heat sink 5a is in surface contact with one surface thereof. The upper end of the heat transfer medium header 7a of the lower heat exchanger 3b and the plurality of porous tube panels 4b connected thereto and the upper end of the aluminum louver fin 42 are also cooled, and the heat transfer medium header ( 7a) and a plurality of pores formed in each of the plurality of porous tube panels 4b. A heat transfer medium having a low freezing point such as distilled water or water packed in (41) increases the heat transfer volume of the lower heat exchanger 3b, and at the same time, the heat of the lower heat exchanger 3b is rapidly transferred to the endothermic heater sink 5a. The lower heat exchanger 3b cools rapidly as the action to be absorbed appears.

Therefore, the air inside the control panel is introduced through the air intake port 13 by the air intake fan 2b to be in contact with each of the porous tube panels 4b of the lower heat exchanger 3b and at the same time between the respective air tube panels 4b. While passing through the aluminum louver pin 42 formed in the cool by the heat exchange action is supplied to the inside of the control panel through the air outlet 14 to cool the inside of the control panel.

In addition, the heat discharged from the heat generating unit 52 of the thermoelectric element 5 heats the heat generating heat sink 5b. One surface of the heat generating heat sink 5b has a lower end portion of the upper heat exchanger 3a. Since the refrigerant header 6 to which the lower end of each of the porous tube panels 4a is connected is welded in surface contact, heat emitted from the heat generating heat sink 5b is porous with the refrigerant header 6 described above. Since the lower end of the tube panel 4a and the lower end of the aluminum louver fins 42 are heated, the vaporization of the refrigerant stored in the refrigerant storage chamber 51 of the refrigerant header 6 proceeds rapidly, and the vaporized evaporation gas ( Refrigerant) absorbs heat around each of the porous tube panels 4a and moves up along the plurality of porous holes 41 formed in each of the porous tube panels 4a to condense into a liquid phase. Outside cold ball flowing into the upper heat exchange chamber (1a) by In the process of passing through the upper portion of the upper heat exchanger (4a) and the heat exchange action between the respective porous tube panel (4a) and the aluminum louver fins 42 installed between them is active, accordingly The boil-off gas that rises above the porous holes 41 of each of the porous tube panels 4a is condensed into the liquid phase by cold air absorbed from the outside air, and the liquid refrigerant condensed above the porous holes 41 is a porous hole. Along with the lowering (41) to fall down and stored in the refrigerant storage chamber 51, and then repeated evaporation and condensation of the action of the heat-dissipating action of the heat generating heat sink (5b) is smoothly progressed, and thus endothermic The heater sink 5a is also capable of smoothly cooling the heat from the lower heat exchanger (3b). Meanwhile, the cold outside air sucked by the outside air suction fan 2a is discharged through the outside air outlet 12 while the heat exchange action is heated while passing through the upper heat exchanger 4a.

Next, the embodiment shown in FIGS. 9 and 10 has a plurality of porous tube panels 4b forming the lower heat exchanger 3b of the heat exchanger 3 and bent in a U-shape at an upper end thereof, and each porous tube panel is formed. The heat transfer medium header 7b is formed by connecting the heat transfer medium header 7b to the lower end of the porous hole 41 formed in the 4b. In this embodiment, when the voltage is applied to the thermoelectric element 5, the endothermic heater sink 5a Heat is absorbed from the upper end of the lower heat exchanger 3b, that is, the upper end of each of the porous tube panels 4b formed in a U-shape and the upper end of the aluminum louver fins 42, and each of the porous tube panels 4b. ) As the cooling action of the lower heat exchanger 3b proceeds rapidly by the heat transfer medium having a low freezing point filled in the heat transfer medium filling chamber 71 of the porous hole 41 and the heat transfer medium header 7b of the heat transfer medium header 7b, Air heated inside the control panel by (2b) is the lower heat exchange chamber (1b). It is cooled by heat exchange with the lower heat exchanger 3b which is introduced and cooled while passing through the lower heat exchanger 3b, and is supplied into the control panel through the air outlet 14 so that the inside of the control panel can be cooled to an appropriate temperature. On the other hand, the heat generating heat sink 5b in this embodiment has the same effect as the above-described embodiment.

In the present invention as described above, the heat exchanger is separated into upper and lower heat exchangers, and then the lower end of the upper heat exchanger is coupled to the heating heater sink in contact with the heat generating portion of the thermoelectric element, while the lower heat exchanger is connected to the heat absorbing portion of the thermoelectric element. The heat exchanger is constructed by coupling to the endothermic heater sink in contact with the bottom heat exchanger, which fills the heat transfer medium having a low freezing point such as distilled water or water to increase the heat transfer volume of the bottom heat exchanger, and at the same time, the heat is rapidly transferred to the endothermic heater sink. Since it promotes heat transfer, it provides an effect of rapidly cooling the lower heat exchanger. Also, the upper heat exchanger is configured to exchange heat with external air using a refrigerant so that the heat absorbed from the endothermic heater sink is exothermic heater. It is used to evaporate the refrigerant in the upper heat exchanger through the sink It provides the effect that the heat exchange action of the upper heat exchanger proceeds quickly, thereby allowing the inside of the control panel to be cooled quickly to an appropriate temperature. Also, the temperature inside the control panel is set through the temperature and humidity indicator formed on the front side of the control panel cooler. It can be confirmed that the cooling to the humidity to efficiently operate the control panel cooler to provide an advantage such as to reduce the operating time of the control panel cooler. The upper and lower heat exchangers can be manufactured with a U-shaped bent tube panel, aluminum louver fin, and a pipe-shaped header until the refrigerant and heat transfer medium are injected or filled, thereby allowing mass production of upper and lower heat exchangers. It also provides the effect of reducing manufacturing costs.

Claims (4)

An air inlet and an air outlet are formed at one side of the upper heat exchange chamber, and an air inlet and an air outlet are formed at one side of the lower heat exchange chamber at the lower side. An outside air suction fan suctioned into the chamber, an air suction fan installed inside the air intake opening of the case and sucking the hot air inside the control panel into the lower heat exchange chamber, and a plurality of heat exchange functions installed in the case to exchange heat in the upper and lower heat exchange chambers. In the control panel cooler comprising a heat exchanger having a plurality of porous tube panels are arranged at regular intervals and the aluminum louver fin is formed between each of the porous tube panels, The heat exchanger is formed in a state in which the upper heat exchanger is installed in the state exposed in the upper heat exchange chamber and the lower heat exchanger is installed in the state exposed in the lower heat exchange chamber, The upper heat exchanger has a lower end of each of the porous tube panels at the lower end of the upper heat exchanger in order to allow a heat exchange operation by repeated action of evaporating and condensing the refrigerant through the plurality of porous holes formed in each of the porous tube panels. The refrigerant header is inserted into the refrigerant storage chamber is stored is formed, The lower heat exchanger is a heat transfer medium header capable of filling a heat transfer medium into a plurality of porous holes formed in each of the porous tube panels at one end selected from the top or bottom of the porous tube panels to increase the heat transfer volume of each of the porous tube panels. Is formed, Between the lower end of the upper heat exchanger and the upper end of the lower heat exchanger is interposed a thermoelectric element is connected to the N-type semiconductor and P-type semiconductor in series, the endothermic heater sink of the thermoelectric element is the surface contact the top of the lower heat exchanger The brazing welding in the state, the control panel cooler using a porous tube panel and the thermoelectric element, characterized in that the brazed welding in the state of the surface heat contacting the lower heat exchanger and the refrigerant header connected thereto in the heat generating heat sink of the thermoelectric element. The method of claim 1, The plurality of porous tube panels formed at predetermined intervals in each of the upper and lower heat exchangers of the heat exchanger are curved in a U shape, and the upper heat exchanger is in a state in which each of the porous tube panels has an upper end of the porous holes. The lower end is installed in a U-shape so as to be opened, and the opened lower end is formed in a state of being connected to the refrigerant storage chamber of the refrigerant header. The lower heat exchanger is a state in which each of the porous tube panels has a lower end of the porous holes and an upper end is an opening. The upper end of the heat exchange medium header is connected to the heat transfer medium charging chamber of the heat transfer medium header, and the heat transfer medium header connected to the upper end of the lower heat exchanger is connected to the endothermic heater sink of the thermoelectric element. The porous tube panel and thermoelectric, characterized in that the brazing welding in the surface contact state Using control panel cooler characters. The method of claim 1, The lower heat exchanger of the heat exchanger is brazed and welded to the endothermic heater sink of the thermoelectric element in the state in which the plurality of porous tube panels formed at a predetermined interval are connected to the upper end of the porous holes. Control panel cooler using a porous tube panel and a thermoelectric element, characterized in that the heat transfer medium header is formed so as to be connected to the heat transfer medium charging chamber in the state of being installed in a U-shape so that the bottom of the porous hole is opened. The method according to any one of claims 1 to 3, The plurality of porous tube panels formed at predetermined intervals in the lower heat exchanger of the lower heat exchanger and the heat transfer medium filled in the heat transfer medium header connected to the top or bottom thereof are porous fluids selected from distilled water or water having a low freezing point. Control panel cooler using tube panel and thermoelectric element.

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