KR101461057B1 - Apparatus for cooling and heating with one circulating loop using thermoelectric element - Google Patents

Abstract

The present invention relates to a heat pump using a thermoelectric element, and more specifically, to a heating/cooling apparatus with a single circulation loop which uses a thermoelectric element to change the phase of a heat medium by using a heat absorbing surface and heat emitting surface to replace a conventional mechanical configuration. The present invention can change the phase of a fluid through a cooling unit and a heating unit respectively arranged on the heat absorbing surface and heat emitting surface of the thermoelectric element to reduce the energy consumption and the volume compared to the mechanical configuration and eliminates the limitations regarding the installation space to enable the heat pump to be applied in various fields.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a single loop loop cooling and heating apparatus using a thermoelectric element,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling and heating apparatus using a thermoelectric element, and more particularly, to a cooling and heating apparatus using a thermoelectric element that can replace a conventional mechanical structure by phase- Loop cooling and heating apparatus.

Generally, a cooling device used in an air conditioner, a refrigerator, or the like is composed of a compressor, a condenser, an expansion valve, and an evaporator to provide a cool air while phase-changing the refrigerant.

Specifically, the cooling device compresses the low-pressure gas refrigerant to a high pressure and supplies the low-pressure gas refrigerant to the condenser. The high-temperature and high-pressure gas refrigerant is cooled through the condenser to be liquefied in a liquid state and supplied to the expansion valve. Is supplied to the evaporator, and the liquid refrigerant at a low temperature and a low pressure is evaporated through the evaporator to provide cold air by heat absorption by liquid evaporation.

For example, in an air conditioner, an evaporator constitutes an indoor unit and a condenser constitutes an outdoor unit.

However, the above-mentioned mechanical cooling device has a disadvantage that much energy is consumed for compressing and condensing the refrigerant, and there is a problem that the indoor and outdoor units are bulky and have a space limitation.

On the other hand, in recent years, many devices for providing cold air or heat using thermoelectric elements have been developed.

The thermoelectric element is an element using endothermic effect or heat generated by the Peltier effect as is known.

Since these thermoelectric elements absorb heat or heat on both sides according to the flow direction of the electric current, cold / warm air or air conditioner using the cooling or heating of the thermoelectric element is being developed.

However, prior arts using thermoelectric elements merely constitute a cooling line through a loop using only a heat absorbing surface of a thermoelectric element or a heating line using only a heat generating surface of a thermoelectric element through a loop independent of a cooling line, There are limitations that the field is limited.

For example, in an air conditioner disclosed in Korean Patent Laid-open No. 10-2002-0013409 or a thermoelectric-element using air conditioner disclosed in Korean Patent No. 10-1020543, a cooling line is formed through one loop on a heat absorbing surface of a thermoelectric element , And another heating line is formed on the heating surface of the thermoelectric element through another loop.

Korean Patent Publication No. 10-2002-0013409 Korean Patent No. 10-1020543

SUMMARY OF THE INVENTION The present invention has been made in order to overcome the problems of the prior art as described above, and it is an object of the present invention to provide a thermoelectric conversion device that can replace a conventional mechanical structure such as a condenser or a compressor with an electronic structure of a thermoelectric element, And to provide a single circulating loop cooling and heating device using a thermoelectric element capable of providing cooling or heating while phase-changing a fluid.

In addition, a single circulating loop cooling and heating device using a thermoelectric element that can provide the heat or the cold air of the thermoelectric element to the fluid in a state that the heat loss is minimized, and the configuration of the expansion valve can be omitted by varying the diameter of the fluid It is another purpose to provide.

In order to provide a single circulating loop cooling and heating device using a thermoelectric element which can additionally include an expansion valve and smoothly perform a cooling mode and bypass the fluid in a branched state in the heating mode It is another purpose.

According to an aspect of the present invention, there is provided a single circulating loop cooling and heating apparatus using a thermoelectric element, the apparatus including at least one thermoelectric conversion element for providing a cooling mode or a heating mode, device; A cooling unit for cooling the fluid to heat the gaseous fluid in thermal contact with the thermoelectric element heat absorbing surface during the cooling mode; An evaporator for evaporating the fluid liquefied by the cooling unit and providing cool air to cool the air or other fluid; A circulation pump for circulating the fluid while pumping the fluid discharged from the evaporator; A heating unit that thermally contacts the heating surface of the thermoelectric element with the fluid pumped by the circulation pump while heating the fluid to a high temperature state and provides the fluid to the cooling unit; And a circulation line connecting the cooling unit, the evaporator, the circulation pump, and the heating unit to form a circulation loop, wherein the heating direction is reversed by applying a current to the thermoelectric device, The fluid is heated through the cooling unit while cooling the fluid through the heating unit, and the air or other fluid is heated by providing the heat through the evaporator.

For example, the cooling unit and the heating unit may include a heat exchange housing provided on the heat absorbing surface and the heat generating surface of the thermoelectric element in close contact with each other to provide cool air or heat. And a heat exchange pipe built in the heat exchange housing and connected to the circulation line for passing the fluid through the heat exchange pipe.

For example, the heat exchange housing may include a portion of the heat exchange pipe in close contact with the heat absorbing surface and the heat generating surface of the thermoelectric element, and may be made of a material having a high thermal conductivity to provide cool air or heat of the thermoelectric element to the heat exchange pipe A heat transfer member to heat the substrate; And a heat insulating member coupled to the heat transfer member to receive the remaining portion of the heat exchange pipe and to be insulated from the heat exchange pipe.

In addition, the cooling section may be configured such that the diameter of the heat exchange pipe is gradually narrowed toward the evaporator side.

In the cooling mode of the thermoelectric element, the low-temperature fluid supplied from the cooling unit is depressurized through a throttling action, and the refrigerant is supplied to the evaporator And an expansion valve for supplying the refrigerant to the expansion valve.

In the heating mode of the thermoelectric module, the high-temperature fluid supplied from the cooling unit is diverted from the expansion valve while being diverted to the expansion valve, And a bypass line for supplying the refrigerant to the evaporator.

According to another aspect of the present invention, there is provided a method for controlling a heating mode of a thermoelectric module, the method comprising the steps of: providing a circulation line connecting the heating unit and the cooling unit in an extended state, And an extension loop for supplying heat to the cooling unit after heat exchange with the cooling unit.

For example, the extended loop may include an additional evaporator that provides heat or cool air to the air or other fluid through the fluid heated or cooled in the heating section and supplies the fluid to the cooling section; An additional expansion valve that reduces the pressure of the low-temperature fluid supplied from the heating unit during the heating mode of the thermoelectric element through the throttling action and supplies the reduced fluid to the additional evaporator in a low-pressure state; And an additional bypass line for bypassing the high-temperature fluid supplied from the heating unit in the cooling mode of the thermoelement to the additional evaporator while being diverted to the additional expansion valve.

For example, the evaporator may include: an oval coil having an elliptical cross section while flowing the fluid; And a plurality of heat dissipating fins which are stacked in a state of being penetrated by the oblique coil and radiate the cold air of the oval coil.

The single loop loop cooling and heating apparatus using the thermoelectric device according to the present invention can change the phase of the fluid through the cooling unit and the heating unit provided on the heat absorbing surface and the heat generating surface of the thermoelectric device, And the volume can be significantly reduced. Therefore, the restriction of the installation space can be reduced, so that it can be applied to various fields such as a convection cooling / heating system as well as a radiation cooling / heating system.

Since the heat transfer member constituting the heat exchange housing is made of a material having a high thermal conductivity, the heat transfer of the thermoelectric element can be smoothly performed in the heat exchange pipe. Since the heat insulating member is coupled to the heat transfer member and accommodates the remaining portion of the heat exchange pipe, Heat loss can be minimized.

In addition, since the diameter of the heat exchange pipe constituting the cooling section gradually narrows, the pressure of the fluid moving toward the evaporator side can be reduced, so that the mechanical configuration of the expansion valve can be omitted.

In addition, when a separate expansion valve is constructed, the fluid can be depressurized smoothly in the cooling mode, and fluid can be supplied to the evaporator in the heating mode bypassing the expansion valve as the bypass line is constructed.

In addition, when the extension loop is provided, it is possible to utilize the heat that is extinguished in the cooling mode or the cool air that disappears in the heating mode.

1 is a block diagram of a single loop loop cooling and heating apparatus using a thermoelectric device according to the present invention;
Fig. 2 is a longitudinal sectional view showing the cooling unit and the heating unit shown in Fig. 1. Fig.
3 is a perspective view showing the cooling unit and the heating unit shown in Fig.
4 is a configuration diagram showing another embodiment of the present invention.
5 is a configuration diagram showing still another embodiment of the present invention.
6 is a perspective view showing an evaporator of the present invention.
7 is an enlarged cross-sectional view showing the evaporator shown in Fig.
8 is an enlarged cross-sectional view showing another embodiment of the evaporator;

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted.

1, a single circulating loop cooling and heating apparatus using a thermoelectric device according to the present invention includes a thermoelectric element 100, a cooling unit 200, an evaporator 300, a circulation pump 400, a heating unit 500 And a circulation line 600. [0050]

As known in the art, the thermoelectric element 100 is a member which provides a cooling mode or a heating mode while one side absorbs heat or generates heat according to a current application direction and the other side generates heat or absorbs heat in a state opposite to the other side. It may be composed of a single number or a plurality.

The cooling unit 200 is a component that cools the fluid in the gaseous state by liquefying fluid flowing through the circulation line 600 in the cooling mode while making the fluid in heat contact with the heat absorbing surface 110 of the thermoelectric element 100.

That is, the cooling unit 200 performs the function of a normal condenser by exchanging heat with the gaseous fluid to the heat absorbing surface 110 while removing the condensation heat and liquefying it.

Here, the fluid may be composed of a refrigerant used in a conventional refrigerator, or may be composed of water.

When the thermoelectric element 100 is switched to the heating mode while the current application direction is reversely applied to the thermoelectric element 100, the cooling unit 200 heats the fluid as the heat absorbing surface 110 generates heat and supplies the heated fluid to the evaporator 300 Supply.

The cooling unit 200 may include a heat exchange housing 210 and a heat exchange pipe 220 as shown in FIGS. 2 and 3, for example.

The heat exchange housing 210 is installed in close contact with the heat absorbing surface 110 of the thermoelectric element 100 as shown in FIGS. 2 and 3 to provide cool air or heat of the thermoelectric element 100 to the heat exchange tube 220 do.

As shown in FIG. 3, the heat exchange pipe 220 is connected to the heat exchange housing 210 to exchange heat with the cool air or heat of the thermoelectric element 100 while flowing the fluid.

Here, as shown in FIG. 2, the heat exchange pipe 220 constituting the cooling unit 200 may be configured so that the diameter of the heat exchange pipe 220 becomes narrower toward the moving direction of the fluid, that is, toward the evaporator.

In other words, the fluid can be depressurized as the diameter of the fluid becomes narrower as it flows through the heat exchange pipe 220 in the cooling mode. Accordingly, even if the evaporator 300 And can be smoothly evaporated.

In addition, the heat exchange duct 220 can be piped to the heat exchange housing 210 in a zigzag shape as shown in a perspective view of FIG. 3. Alternatively, as shown in plan view in FIG. 3, 210, respectively.

The heat exchange housing 210 may include a heat transfer member 211 and a heat insulating member 212 as shown in FIGS.

The heat transfer member 211 is a member for smoothly transferring the cool air of the thermoelectric element 100 to the heat exchange pipe 220. The heat transfer member 211 is installed in close contact with the thermoelectric element 100, ). ≪ / RTI >

The heat transfer member 211 is preferably made of a material having a high thermal conductivity such as aluminum or copper.

The heat insulating member 212 is a member for preventing heat loss of the heat exchange conduit 220. The heat insulating member 212 is coupled to the heat transfer member 211 as shown in FIG. 2 and receives the remaining portion of the heat exchange conduit 220, The outer surface of the heat exchange pipe 220 is insulated to minimize the heat loss of the fluid.

The evaporator 300 evaporates the phase-changed fluid in the cooling unit 200 in the cooling mode, evaporates the phase-changed fluid while cooling the air and other fluids through the evaporation heat to cool the thermoelectric device 100 in the heating mode, And the air or other fluid is heated while the fluid heated at the high temperature in the unit 200 is perfused.

For example, the evaporator 300 may form a convection cooling / heating system by cooling or heating the air while exchanging heat with the air supplied from the blowing fan 300a as shown in FIG. 1, or alternatively cooling or heating another fluid Thereby constituting a copying cooling and heating system.

The circulation pump 400 pumps the vaporized or condensed fluid in the evaporator 300 to a high pressure while providing a circulating pressure of the fluid.

The circulation pump 400 may be constructed in a manner known in the art to which the present invention belongs, so that detailed description thereof will be omitted.

Here, it is preferable that the circulation pump 400 be adapted to pumping both the gas state and the liquid state fluid at a high pressure.

The heating unit 500 changes the fluid into a gas state at a high temperature and a high pressure while bringing the fluid pumped by the circulation pump 400 into thermal contact with the heating surface 120 of the thermoelectric element 100 in the cooling mode of the thermoelectric element 100 To the cooling unit 200 described above.

The heating unit 500 may cool the fluid pumped by the circulation pump 400 in the heating mode of the thermoelectric element 100 in a thermal contact with the heat generating surface 120 of the thermoelectric element 100 to cool the fluid to a low temperature state (200).

2 and 3, the heating unit 500 may include a heat exchange housing 210 and a heat exchange pipe 220 in the same manner as the cooling unit 200 described above.

The circulation line 600 constitutes one circulation loop while connecting the cooling unit 200, the evaporator 300, the circulation pump 400, and the heating unit 500, as shown in FIG.

The fluid is supplied from the heating unit 500 to the cooling unit 200 in a state of high temperature and high pressure in the heating unit 500 when the thermoelectric element 100 is in the cooling mode, And is supplied to the evaporator 300. The refrigerant is vaporized in the evaporator 300 and is supplied with cooling air through the evaporation heat. The refrigerant is then pumped at a high pressure by the circulation pump 400 and then heated to a high temperature in the heating unit 500 again.

At this time, the high-temperature and high-pressure fluid passing through the cooling unit 200 is cooled and liquefied while passing through the heat exchange pipe 220. As the diameter of the heat exchange pipe 220 becomes narrower, the pressure of the fluid is reduced to a low pressure and supplied to the evaporator 300 .

When the thermoelectric element 100 is in the heating mode, the fluid is supplied to the cooling unit 200 in a low temperature state in the heating unit 500, heated to a high temperature state in the cooling unit 200, And is then pumped by the circulation pump 400 and cooled again in the heating unit 500. [

Meanwhile, the present invention may be configured to further include an expansion valve 700 as shown in FIG.

The expansion valve 700 is a conventional member for reducing the pressure of the fluid through the throttling action in the cooling mode and is installed in the circulation line 600 between the cooling unit 200 and the evaporator 300 as shown in FIG. The pressure of the fluid supplied from the cooling unit 200 is reduced and supplied to the evaporator 300.

That is, since the fluid is supplied to the evaporator 300 in a state of being reduced in pressure through the expansion valve 700 after being liquefied at the cooling part 200 in the cooling mode of the thermoelectric element 100 at a low temperature, ≪ / RTI >

The present invention may further include a bypass line 800 as shown in FIG.

The bypass line 800 is a component for bypassing the fluid in the heating mode of the thermoelectric element 100 to the evaporator 300 in a branched state with the expansion valve 700.

4, the bypass line 800 is installed in a circulation line 600 connecting the cooling unit 200 and the evaporator 300, and is installed to bypass the expansion valve 700, The valve 810 is provided to bypass the fluid supplied from the cooling unit 200 in the heating mode and supply the fluid to the evaporator 300 or to supply the fluid supplied from the cooling unit 200 in the cooling mode to the expansion valve 700 Supply.

In addition, the present invention may be configured to further include an extended loop 900 as shown in FIG.

The extension loop 900 is provided in the circulation line 600 connecting the heating unit 500 and the cooling unit 200 as shown in the drawing and is connected to the heating unit during the cooling mode or the heating mode of the thermoelectric device 100 500, and then supplies the heat to the cooling unit 200 after exchanging heat with other fluids.

Such an extension loop 900 may comprise an additional evaporator 300 ', an additional expansion valve 700' and an additional bypass line 800 'as shown in FIG. 5, for example.

The additional evaporator 300 'has the same structure as that of the evaporator 300 as shown in the figure and is communicatively installed between the heating unit 500 and the cooling unit 200. The additional evaporator 300' Heat exchanges air or other fluid through the cooled fluid.

That is, the additional evaporator 300 'provides heat through the fluid heated in the heating unit 500 in the cooling mode of the thermoelectric element 100, and the heating unit 500 in the heating mode of the thermoelectric element 100, Lt; / RTI > provides cooling air through the fluid that is cooled in the < RTI ID =

The additional expansion valve 700 'is a component that performs the same function as the above-described expansion pallet 700 in the heating mode of the thermoelectric element 100.

That is, the additional expansion valve 700 'reduces the low-temperature fluid supplied from the heating unit 500 by the heating mode of the thermoelectric element 100 through the throttling action, and supplies the reduced fluid to the additional evaporator 300'.

The additional bypass line 800 'is a component that performs the same function as the above-described bypass line 800 in the cooling mode of the thermoelectric element 100.

That is, the additional bypass line 800 'connects the high-temperature fluid supplied from the heating unit 500 in the cooling mode of the thermoelectric element 100 to the additional evaporator 300' in a branched state with the additional expansion valve 700 ' . ≪ / RTI >

As shown in FIG. 5, the additional bypass line 800 'is provided to bypass the additional expansion valve 700'. The additional bypass line 800 'is provided in the heating portion 500 during the cooling mode, To the additional evaporator 300 '.

Meanwhile, the evaporator 300 and the additional evaporator 300 'may include the oval coil 310 and the heat dissipation fin 320, as shown in FIG.

The airflow coils 310 heat exchange with the air by the air blowing fan 300a while allowing the fluid to pass therethrough to cool the air.

As shown in FIG. 7, such an oval coil 310 may have an elliptical cross section having a long axis in the moving direction of the air to enlarge the thermal contact area. This prevents the air stream at the rear end of the coil from being vortexed, thereby preventing scattering of the condensed water.

For example, the coil having a circular section has a narrow thermal contact area with the moving air, and in particular, since the outer peripheral surface of the rear end where the air escapes hardly comes into contact with air, water is formed in the shape of water droplets, And is scattered by the vortex phenomenon of the air.

On the other hand, since the thermal contact area of the elliptical type of the oblique coil 310 with the moving air extends to the rear end, moisture formed on the outer circumferential surface is minimized to form a water droplet. Even if water droplets are formed, do.

Accordingly, the air discharge coil 310 of the present invention can prevent air from being scattered while smoothly cooling air or other fluid by the blowing fan 300a.

When the evaporator 300 or the additional evaporator 300 'is constituted by an oval coil 310 having an elliptical cross section having a long axis in the moving direction of the air, the scattering of the condensed water is prevented, It is possible to employ a blowing fan 300a having a higher wind speed than that of the air blowing fan 300a, thereby realizing a high-efficiency and large-capacity apparatus.

As shown in FIG. 6, the heat dissipation fins 320 are stacked in a spaced state while being penetrated by an oval coil 310 to dissipate the cold air of the oval coil 320.

The heat dissipation fins 320 may be stacked while being separated from each other through the configuration of the spacer as shown in FIG.

For example, the spacer may be configured as a protruding tube 330 as shown in FIG.

As shown in FIG. 6, the protruding pipe 330 protrudes in a tubular shape at the penetrating portion of the oval coil 310, and is caught by another heat-radiating fin 320 as the same body as the radiating fin 320.

That is, the radiating fins 320 are inserted into the oval coil 310 in the laminated state through the protruding pipes 330, and are spaced apart from the protruding pipes 330 by the length of the protruding pipes 330, And the air is cooled while the air is passed through the space.

In addition, the evaporator 300 or the additional evaporator 300 'of the present invention may further include a moisture scattering prevention guide 340 as shown in FIG.

The moisture scattering prevention guide 340 is a component for preventing water from scattering while interfering with water on the surface of the air blast coil 310 moving together with the air due to an excessive wind speed of the air blast fan 300a.

8, the moisture scattering prevention guide 340 may include a pair of shield plates 341 installed in the heat radiating fin 310 in a state adjacent to the oval coil 310 and the protruding tube 330 .

As shown in FIG. 8, the pair of shield plates 341 are symmetrically disposed about the long axis of the oblique coil 310 having an elliptical cross section, Thereby forming an inclined surface.

That is, the shield plate 341 forms an inclined surface at the rear end side of the oval coil 310, thereby interfering with the air contacted with the outer circumferential surface of the oval coil 310 and preventing the moisture from being scattered by the excessive wind speed.

As shown in FIG. 8, the shield plate 341 includes an inflow portion 341a having a shape in which the mutual intervals of the inclined surfaces are narrowed, and a discharge portion 341b having a wide interval between the inclined surfaces. The flow rate of the air is varied to smoothly discharge the air.

That is, the air passing through the oval coil 310 flows into the inflow portion 341a along with the moisture. As the distance between the inclined surfaces is narrowed, the flow velocity increases, and the discharge portion 341b, So that the cross-sectional area is smoothly discharged in an expanded state.

As described above, according to the single circulating loop cooling and heating apparatus using the thermoelectric element of the present invention, the cooling unit 200 and the heating unit 500, which are respectively installed on the heat absorbing surface 110 and the heat generating surface 120 of the thermoelectric element 100, The energy consumption can be significantly reduced compared to the conventional mechanical structure and the volume can be significantly reduced, so that the restriction of the installation space can be reduced and applied to various fields.

Since the heat transfer member 211 constituting the heat exchange housing 210 is made of a material having a high thermal conductivity, the heat transfer of the thermoelectric element 100 can be smoothly performed on the heat exchange pipe 220, The heat transfer member 211 is coupled to the heat exchange pipe 220 and accommodates the remaining portion of the heat exchange pipe 220, so that the heat loss of the fluid can be minimized.

In addition, since the diameter of the heat exchange pipe 220 constituting the cooling unit 200 is gradually narrowed, the pressure of the fluid moving toward the evaporator 300 can be reduced, so that the mechanical configuration of the expansion valve 700 can be omitted have.

Further, when the separate expansion valve 700 is constructed, the fluid can be smoothly depressurized in the cooling mode, and as the bypass line 800 is constructed, the fluid bypasses the expansion valve 700 in the heating mode, (Not shown).

In addition, when the extension loop is provided, it is possible to utilize the heat that is extinguished in the cooling mode or the cool air that disappears in the heating mode.

In addition, since the evaporator 300 and the additional evaporator 300 'are composed of the oval coil 310 having the long axis in the moving direction of the air, the condensation of the condensed water can be minimized by expanding the heat exchange area, The air flow characteristic of the coil 310 minimizes the swirling phenomenon on the rear surface of the coil, thereby preventing condensation from being scattered. Accordingly, it is possible to employ a blowing fan having a higher wind speed than the conventional blowing fan, Can be realized.

In addition, since the protruding pipe 330 constituting the spacer is formed in the radiating fin 320, the radiating fin 320 is caught by another radiating fin 320, so that the radiating fin 320 can be separated and fixed firmly.

In addition, the pair of shield plates 341 constituting the moisture scattering prevention guide 340 are configured in the shape of a slope forming a slope, and the moisture interferes with the water through the inflow portion 341a, The air can be discharged in a state where the scattering of moisture is blocked by the excess wind speed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

100: thermoelectric element 110: heat absorbing surface
120: heat generating surface 200: cooling part
210: heat exchange housing 211: heat transfer member
212: heat insulating member 220: heat exchange pipe
300: Evaporator 310: Oud coil
320: radiating fin 330: protruding pipe
340: Water scattering prevention guide 341: Shield plate
341a: Inflow portion 341b:
400: circulation pump 500: heating part
600: circulation line 700: expansion valve
800: Bypass line 810: Switching valve
900: Extended loop

Claims (9)

At least one thermoelectric element for providing a cooling mode or a heating mode with both sides absorbing heat and generating heat according to a current application direction;
A cooling unit for cooling the fluid to heat the gaseous fluid in thermal contact with the thermoelectric element heat absorbing surface during the cooling mode;
An evaporator for evaporating the fluid liquefied by the cooling unit and providing cool air to cool the air or other fluid;
A circulation pump for circulating the fluid while pumping the fluid discharged from the evaporator;
A heating unit that thermally contacts the heating surface of the thermoelectric element with the fluid pumped by the circulation pump while heating the fluid to a high temperature state and provides the fluid to the cooling unit; And
And a circulation line connecting the cooling unit, the evaporator, the circulation pump, and the heating unit to form a single circulation loop,
The heating direction of the thermoelectric element is opposite to the application direction of the current, the fluid is heated through the cooling unit while the fluid is cooled through the heating unit, and the air or other fluid is heated In addition,
The cooling unit and the heating unit may include:
A heat exchange housing provided in close contact with the heat absorbing surface and the heat generating surface of the thermoelectric element to provide cool air or heat; And
And a heat exchange pipe built in the heat exchange housing and connected to the circulation line for passing the fluid through the heat exchange pipe,
Wherein the heat exchange housing comprises:
A heat transfer member for accommodating a part of the heat exchange pipe in a state of being in close contact with a heat absorbing surface and a heat generating surface of the thermoelectric element and providing a cool air or heat of the thermoelectric element to the heat exchange pipe, And
And a heat insulating member coupled to the heat transfer member to receive the remaining portion of the heat exchange pipe and to be insulated from the heat exchange pipe,
The heat exchange pipe includes:
Wherein the heat exchange housing is disposed in a zigzag fashion or is piped to the heat exchange housing in a multi-
Wherein the evaporator comprises:
An oval coil having an elliptical cross section while allowing the fluid to flow therethrough; And
And a plurality of heat dissipating fins which are stacked in a spaced relationship with each other while being penetrated by the oval coil and radiate cold air of the oval coil,
And a spacer for stacking the radiating fins in a spaced apart state,
The spacer
And a protruding tube protruding in a penetrating portion of the obliqueness coil and protruding in a tubular shape along the longitudinal direction of the obliquely coil to be caught by another radiating fin,
Wherein the evaporator comprises:
And a moisture scattering prevention guide installed on the radiating fin in a state of being adjacent to the protruding tube through which the oval coil penetrates to block moisture moving together with the air,
In the moisture scattering prevention guide,
And a pair of shield plates symmetrical about a long axis of the oval coil and interfering with movement of water while forming an inclined surface having a narrowed gap toward the discharge port side. Heating device.
delete delete The method according to claim 1,
The cooling unit includes:
And a diameter of the heat exchange pipe is gradually narrowed toward the evaporator side.
The method according to claim 1,
An expansion valve installed in the circulation line connecting the cooling unit and the evaporator and reducing the pressure of the low-temperature fluid supplied from the cooling unit in the cooling mode of the thermoelectric element through a throttling action and supplying the reduced fluid to the evaporator in a low- Further comprising a thermocouple coupled to the heating coil.
The method of claim 5,
A bypass provided in the circulation line that connects the cooling unit and the evaporator and supplies the high temperature fluid supplied from the cooling unit to the evaporator while bypassing the high temperature fluid supplied from the cooling unit in a branched state in the heating mode of the thermoelectric element, Line; and a single loop loop cooling and heating device using a thermoelectric device.
The method according to claim 1,
And a cooling unit connected to the heating unit and the cooling unit. The cooling unit is configured to heat-exchange the fluid heated or cooled by the heating unit in the cooling mode of the thermoelectric element or the heating unit with air or another fluid, Further comprising an elongated loop for supplying the cooling fluid to the heating chamber.
The method of claim 7,
The extension loop
An additional evaporator that supplies heat or cool air to the air or other fluid through the fluid heated or cooled by the heating unit and supplies the fluid to the cooling unit;
An additional expansion valve that reduces the pressure of the low-temperature fluid supplied from the heating unit during the heating mode of the thermoelectric element through the throttling action and supplies the reduced fluid to the additional evaporator in a low-pressure state; And
And an additional bypass line for bypassing the high-temperature fluid supplied from the heating unit in the cooling mode of the thermoelectric element to the additional evaporator while being diverted to the additional expansion valve. Single loop loop cooling and heating device.
delete

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