KR101622777B1 - Cooler and warmer massage pack using thermoelectric element - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cold / hot switch massage pack using a thermoelectric element, and more particularly, to a massage switch pack which uses a thermoelectric element capable of heating as well as cooling with one element, In the case of heating, stable heating can be achieved, vibration and noise can be drastically reduced, the user can easily change the heat and cold by the operation, and the temperature suitable for skin beauty can be effectively maintained. Lt; / RTI >
A cold switch switch massage pack using a thermoelectric device according to the present invention is formed to cover a face of a user and includes an inner skin and an outer skin which are joined to each other so as to form an inner space in which a heat transfer fluid can be filled, A mask having a fluid inlet and a fluid outlet communicating with the inner space; A coolant supply unit for heating or cooling the heat transfer fluid to supply the heat transfer fluid to the fluid inlet, and recovering and circulating the heat transfer fluid discharged to the fluid outlet; The cooling / heating unit may include a water tank for storing and collecting the heat transfer fluid, a pump for pumping the heat transfer fluid stored in the water tank toward the fluid inlet, a cooling surface by a Peltier effect depending on the direction of the supplied electric current, A thermoelectric element for heating the heat transfer fluid stored in the water tank by the cooling surface, the thermoelectric element for cooling the thermoelectric fluid stored in the water tank by the cooling surface, and a DC supply portion for supplying DC power to the thermoelectric element, The direction of the current supplied to the thermoelectric element is switched so that the thermoelectric fluid heated or cooled by the user's operation can be switched and supplied to the fluid inlet or the thermoelectric element is controlled to be turned on or off A switch control section; And further comprising:

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cold-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cold / hot switch massage pack using a thermoelectric element, and more particularly, to a massage switch pack which uses a thermoelectric element capable of heating as well as cooling with one element, In the case of heating, stable heating can be achieved, vibration and noise can be drastically reduced, the user can easily change the heat and cold by the operation, and the temperature suitable for skin beauty can be effectively maintained. Lt; / RTI >

In hot summer months, where there is usually a lot of outdoor activity, women's faces are exposed to hot sun and high temperatures, causing heat to the face, skin roughness, sunburn, tiredness, It has a lot of clean cleansing and massages to supply nutrition and make skin elastic.

In recent years, a mask pack has been developed to easily massage the face of the body, particularly the face, so that the entire face of the woman is covered and the massage is temporarily blocked by blocking the outside air.

On the other hand, the mask pack is filled with cool, on-colloidal gel between the outer skin of the natural rubber or silicone and the inner skin so that the cold and warm heat can be maintained for a long time. In order to maintain the temperature of the gel, the pack is placed in a microwave oven for a predetermined time to adjust the temperature of the gel.

However, since the conventional facial mask pack is gradually heated to a room temperature or lowered after a certain period of time, there is an inconvenience that the pack must be inserted into the refrigerator or the microwave oven at regular intervals.

In order to solve the problems of the related art as described above, "hot and warm facial massage pack" has been proposed in Patent Registration No. 10-1062026 (published on September 5, 2011).

In the above-described conventional technique, cold water or hot water is supplied to the mask pack from the outside to maintain the temperature of the mask pack.

However, in the case of the above-mentioned prior art, there is no specific description on the source of the cold water or the hot water, and the conventional cooling apparatus for supplying the cold water usually uses a refrigerant as a compressor type cooling apparatus using the existing refrigerant, There is a problem that the conventional heating device for supplying hot water is a heat generating heater, which is unstable in use.

On the other hand, the thermoelectric element is used not only as a cooling means in place of Freon gas which is one of the causative substances of air pollution as well known, but also as a device which is widely used as a small generator by the Seebeck effect to be.

The thermoelectric power generation due to the Jecke effect in the thermoelectric device is a result of magnetically polarizing the conductor due to the temperature difference, which occurs because a voltage due to the temperature difference, that is, a thermoelectric power, is generated and a current flows in the closed circuit.

More specifically, in the case of using an n-type thermoelectric semiconductor as a thermoelectric element, the cooling surface is charged to - and the heat surface is charged to +, whereby a potential difference is generated between the cooling surface and the heat surface, .

When a current flows through a loop formed by mutually grounded metals via a semiconductor, a potential difference occurs due to a difference in Fermi energy, and cooling (endothermic) occurs because electrons take necessary energy to move from one metal surface to the other On the other hand, the other metal surface generates heat as much as the energy brought by the electrons, so heat (heat dissipation) occurs. This is called the Peltier effect and is the principle of operation of the cooling device by the thermoelectric element.

At this time, the position of the endothermic and heat radiation is determined according to the kind of the semiconductor and the direction in which the current flows, and the effect also varies depending on the material.

FIG. 1 is a structure diagram of an NP type semiconductor provided in a thermoelectric element. Referring to FIG. 1, an operation state of a thermoelectric element will be described. An N type semiconductor N and a P type semiconductor P are connected in series via a conductor M When a direct current (DC) is applied to the circuit, electrons absorbing heat energy from the surroundings are moved to the inside of the semiconductor in the metal / semiconductor contacts 1 and 2 charged with (-) and endothermic occurs, At the contact point, the heat dissipation (3, 4) occurs due to the release of the heat energy of the electron. Also, if the direction of the current is reversed, the endothermic and heat-radiating regions are also reversed.

On the other hand, the thermoelectric efficiency differs depending on the material of the semiconductor (N, P). Thermoelectric materials that are widely utilized because of their excellent thermoelectric indexes include BiTe-based materials and PbTe-based materials.

However, even when optimized by utilizing the thermoelectric material, the amount of heat absorption and / or heat release per a supply power of a thermocouple in which an N-type semiconductor and a P-type semiconductor are paired is very small. For this reason, when semiconductors (N, P) are actually utilized in a cooling device or the like, a plurality of thermocouples are connected to increase the amount of endothermic and / or heat radiation quantitatively, and these devices are widely applied to cooling devices as thermoelectric elements.

'E.F' and 'H.F' denote directions of electron flow and hole flow occurring in the N-type semiconductor and the P-type semiconductor, respectively.

2 is a partially cutaway perspective view of a general thermoelectric element. As shown in the drawing, a plurality of thermocouples are disposed on a flat plate to connect the conductors to form a series circuit, and DC currents (+, -) are applied so that heat radiation and endothermic reaction are generated centering on the thermocouples .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a thermoelectric element that can be used not only for cooling but also for heating, It is eco-friendly, it can be heated stably, stable vibration can be reduced, vibration and noise can be drastically reduced, cold and hot can be easily switched by user's operation, and cold temperature using a thermoelectric element Switch massage pack.

In order to accomplish the above object, the present invention provides a massage switch pack for use in a cold / hot switch using a thermoelectric device, comprising: an inner skin formed to cover a face of a user and having an edge portion joined to each other to form an inner space, A mask having an outer shell and having a fluid inlet and a fluid outlet communicating with the inner space at one side; A coolant supply unit for heating or cooling the heat transfer fluid to supply the heat transfer fluid to the fluid inlet, and recovering and circulating the heat transfer fluid discharged to the fluid outlet; The cold / hot supply unit may include a water tank for storing and collecting the heat transfer fluid, a pump for pumping the heat transfer fluid stored in the water tank toward the fluid inlet, a cooling surface by a Peltier effect depending on the direction of the supplied electric current, A thermoelectric element for heating the heat transfer fluid stored in the water tank by the cooling surface, the thermoelectric element for cooling the thermoelectric fluid stored in the water tank by the cooling surface, and a DC supply portion for supplying DC power to the thermoelectric element, The direction of the current supplied to the thermoelectric element is switched so that the thermoelectric fluid heated or cooled by the user's operation can be switched and supplied to the fluid inlet or the thermoelectric element is controlled to be turned on or off A switch control section; And further comprising:

Also, in the massage switch pack for a cold switch using the thermoelectric device according to the present invention, the mask may be formed such that the heat transfer fluid flowing into the fluid inlet totally passes through the inner space and is discharged to the fluid outlet. And a flow path forming diaphragm that divides the space into a plurality of spaces communicated in series.

The thermoelectric module may include a heat radiating plate disposed on the other surface of the thermoelectric module so as to be heat exchangeable with the heat transfer fluid stored in the water tank, And a blower fan for guiding a flow of air to the vicinity of the heat sink, wherein the switch controller is configured to switch the flow direction of the heat transfer fluid stored in the water tank when the heat transfer fluid heated by the fluid inlet is supplied, Wherein a direction of a current supplied to the thermoelectric element is changed so that a surface of the thermoelectric element is opened when one surface of the thermoelectric element is cooled and a surface of the thermoelectric element which is subjected to heat exchange with the heat transfer fluid stored in the water tank is cooled And the direct current supplying part is connected to the thermoelectric element so as to switch the direction of the current supplied to the thermoelectric element. And a control unit.

In the massage switch pack, the hot water tank and the cold water tank are independent of each other. The thermoelectric element has a heating surface attached to one side of the hot water tank, And a first thermoelectric element attached to one side of the cold water tank, wherein the cold / hot supply unit is provided with a flow path switching valve for switching between the hot water tank or the cold water tank and communicating with the fluid inlet and the fluid outlet of the mask Wherein the switch control unit controls the flow path switching valve by a user's operation.

The thermoelectric module may further include a second thermoelectric element having a heating surface attached to the other side surface of the hot water tank and a second thermoelectric element having a cooling surface on the other side of the cold water tank, 3 thermoelectric elements.

The cold / hot switch massage pack using the thermoelectric device according to the present invention includes a sensor unit including a hot water temperature sensor capable of measuring the temperature of the hot water tank and a cold water temperature sensor capable of measuring the temperature of the cold water tank; Wherein the switch control unit operates the first thermoelectric element and supplies the heat transfer fluid to the fluid inlet from the hot water tank when the temperature of the cold water target sensor is lower than a target cold water temperature set in the cold water temperature sensor, The control unit stops the operation of the first thermoelectric element and activates the second thermoelectric element and detects the temperature value of the hot water target temperature set in the hot water temperature sensor in the state of supplying the heat transfer fluid from the cold water tank to the fluid inlet The control unit stops the operation of the first thermoelectric element and controls the direct current supplying unit to operate the third thermoelectric element.

With the above-described structure, the hot / cold switch massage pack using the thermoelectric device according to the present invention improves the problems of the conventional cooling device, and does not use the refrigerant, It can be applied to the skin beauty field because it can improve the use temperature deviation compared to the existing refrigerant method when it is applied to the skin beauty and it is possible to switch the cold heat and the warm heat easily by the user's operation, It is advantageous to effectively maintain the temperature suitable for cosmetics.

Fig. 1 shows the structure of an NP-type semiconductor provided in a thermoelectric element
Fig. 2 is a partially cutaway perspective view of a general thermoelectric element
3 is an exploded perspective view of a cold switch switch massage pack using a thermoelectric device according to an embodiment of the present invention.
4 is a perspective view of a cold switch switch massage pack using a thermoelectric device according to an embodiment of the present invention.
5 is a perspective view of a main portion of a cold / hot switch massage pack using a thermoelectric device according to an embodiment of the present invention.
6 is a schematic view of a mask according to an embodiment of the present invention.
7 is a conceptual diagram of a cold switch switch massage pack using a thermoelectric device according to another embodiment of the present invention

Hereinafter, a cold switch switch massage pack using a thermoelectric device according to the present invention will be described in detail with reference to the embodiments shown in the drawings.

FIG. 3 is an exploded perspective view of a cold switch switch massage pack using a thermoelectric device according to an embodiment of the present invention, FIG. 4 is a perspective view of a cold switch switch massage pack using a thermoelectric device according to an embodiment of the present invention, 5 is a perspective view of a main part of a cold switch switch massage pack using a thermoelectric device according to an embodiment of the present invention, and FIG. 6 is a structural view of a mask according to an embodiment of the present invention.

3 to 6, a cold / hot switch massage pack using a thermoelectric device according to an embodiment of the present invention includes a mask 10, a cold / hot supply unit 20, and a switch control unit 40.

The mask 10 includes an inner skin 11 and an outer skin 12 which are joined to each other so as to form an inner space in which the heat transfer fluid can be filled.

A fluid inlet 13 communicating with the inner space is connected to the fluid inlet line L1 and a fluid outlet 14 is connected to the fluid outlet line L2 at one side of the mask 10.

6, the inner space of the mask 10 may be divided into a plurality of spaces such that the heat transfer fluid flowing into the fluid inlet 13 passes through the inner space as a whole and may be discharged to the fluid outlet 14, And a flow path forming diaphragm 15 that divides the space into a plurality of spaces communicated in series.

The cold / hot supply unit 20 heats or cools the heat transfer fluid to supply the heat transfer fluid to the fluid inlet 13, and the heat transfer fluid discharged to the fluid outlet 14 is recovered and circulated. And includes a case 21, a water tank 22, a pump 23, a thermoelectric element 24, a DC supply portion 25, a heat sink 26, and a blowing fan 27.

The case 21 is composed of a lower case 211 and an upper case 212 and accommodates the other components 22, 23, 24, 25, 26, 27 constituting the cold / .

A heat transfer fluid is stored in the water tank 22 and a heat transfer fluid discharged to the fluid outlet 14 is recovered through a fluid outflow line L2 and a heat transfer supply line L3 is connected to the thermoelectric element 24, And a heat transfer fluid line L4 is connected to the pump 23 to transfer the heat transfer fluid to the fluid inlet 13 through the fluid inlet line L1, .

The pump 23 pumps the heat transfer fluid stored in the water tank 22 toward the fluid inlet 13. In the embodiment of the present invention, the pump 23 is connected to the water tank 22, And a heat transfer discharge line (L4) passing through one side of the heat transfer member (24) is connected to pump the heat transfer fluid toward the fluid inlet (13).

The thermoelectric element 24 is configured to have a cooling surface and a heating surface due to the Peltier effect according to the direction of the supplied current as described above in the background art. In one embodiment of the present invention, the thermoelectric element 24 is stored in the water tank The heat transfer fluid is cooled and the heat transfer fluid stored in the water tank is heated by the heat surface.

In an embodiment of the present invention, one surface of the thermoelectric element 24 is disposed in contact with the heat transfer inflow line L3 and the heat transfer outflow line L4 so that heat exchange with the heat transfer fluid stored in the water tank 22 can be performed.

By using the thermoelectric element 24 as means for heating and cooling the heat transfer fluid as in the present invention, it is environmentally friendly because it does not use a refrigerant that destroys the environment in the case of cooling, and stable heating is possible in case of heating, It is possible to switch the cold heat and the warm heat easily by the operation of the user and effectively maintain the temperature suitable for the beauty of the skin.

The DC power supply unit 25 is controlled by the switch control unit 40 and supplies the DC power to the thermoelectric element 24. In the embodiment of the present invention, the AC power supply (AC 220V) And the supply of the constant current and the stability of the direct current supplying device (SMPS) reduces the temperature deviation of the thermoelectric element 24 and improves the performance and the life.

The heat dissipation plate 26 is provided on the other surface of the thermoelectric transducer 24 to increase the efficiency of the thermoelectric transducer 24 by effectively performing heat exchange with the surrounding.

The air blowing fan 27 is configured to induce a flow of air around the heat sink 26 so as to increase the efficiency of the thermoelectric device 24 by allowing the heat sink 26 to heat- to be.

The switch control unit 40 switches the direction of the current supplied to the thermoelectric element 24 so that the thermoelectric element 24 can switch and supply the heat transfer fluid heated or cooled by the fluid inlet 13 by the user's operation, And controls the DC supply part 25 so that the element 24 is turned on and off.

The switch control unit 40 may be provided on one surface of the thermoelectric element 24 that is heat-exchanged with the heat transfer fluid stored in the water tank 22 when the heat transfer fluid heated by the fluid inlet 13 is supplied, And the heat transfer fluid is heat exchanged with the heat transfer fluid stored in the water tank (22) when the heat transfer fluid is supplied to the fluid inlet (13) And to change the direction of the current supplied to the thermoelectric element so that one surface of the element 24 becomes a cooling surface.

Hereinafter, a cold switch switch massage pack using a thermoelectric device according to an embodiment of the present invention has been described. Hereinafter, a hot switch switch massage pack using a thermoelectric device according to another embodiment of the present invention will be described in detail.

7 is a conceptual diagram of a cold switch switch massage pack using a thermoelectric device according to another embodiment of the present invention.

7, a cold / hot switch massage pack using a thermoelectric device according to another embodiment of the present invention includes a mask 10, a cold / hot supply unit 20, a sensor unit 30, and a switch control unit 40 .

Since the mask 10 is the same as the embodiment of the present invention, the detailed description will be omitted.

The cold / hot supply unit 20 may heat or cool the heat transfer fluid and supply the heat transfer fluid to the fluid inlet 13, as in the embodiment of the present invention, and the heat transfer fluid discharged from the fluid outlet 14 A pump 23, a thermoelectric element 24, a direct current supply unit 25, a heat sink (not shown), and a heat exchanger 26, a blowing fan 27, and a flow path switching valve 28. [

The configuration of the case 21, the pump 23, and the DC supply unit 25 is the same as that of the embodiment of the present invention, and thus the detailed description thereof will be omitted.

Wherein the heat transfer fluid stored in the fluid inlet (13) is supplied through a fluid inlet line (L1), and the heat transfer fluid discharged to the fluid outlet (14) flows through a fluid outlet In another embodiment of the present invention, the hot water tank 221 and the cold water tank 222 are independently constructed so that the heated heat transfer fluid is stored in the hot water tank 221, In the cold water tank 222, the cooled heat transfer fluid is stored.

The thermoelectric element 24 includes a first thermoelectric element 241, a second thermoelectric element 242 and a third thermoelectric element 243 in another embodiment of the present invention.

The first thermoelectric element 241 has a heat surface attached to one side of the hot water tank 221 and a cooling surface is attached to one side surface of the cold water tank 222.

The second thermoelectric element 242 is attached to the other side of the hot water tank 221 and the third thermoelectric element 243 is attached to the other side of the cold water tank 222 with a cooling surface.

That is, the first thermoelectric element 241 performs both the heating of the hot water tank 221 and the cooling of the cold water tank 222, and the second thermoelectric element 242 heats the hot water tank 221 And the third thermoelectric element 243 only takes charge of cooling the cold water tank 222.

The heat dissipation plate 26 may include a first heat dissipation plate 261 provided on a cooling surface of the second thermoelectric conversion element 242 and a second heat dissipation plate 263 provided on a heat surface of the third thermoelectric conversion element 243, And a heat sink 262.

The air blowing fan 27 includes a first blowing fan 271 for guiding the flow of air to the vicinity of the first heat radiating plate 261 and a second blowing fan 271 for guiding the flow of air around the second heat radiating plate 262, And a second blowing fan 272 for guiding the blowing air.

The flow path switching valve 28 is provided on the fluid inflow line L1 and the fluid inflow line L2 to switch the hot water tank 221 or the cold water tank 222, And can communicate with the inlet 13 and the fluid outlet 14.

The sensor unit 30 includes a hot water temperature sensor 31 capable of measuring the temperature of the hot water tank 221 and a cold water temperature sensor 32 capable of measuring the temperature of the cold water tank 222 .

The switch control unit 40 is configured to control the flow path switching valve 28 by the user's operation in another embodiment of the present invention.

The switch control unit 40 in the other embodiment of the present invention operates the first thermoelectric element 241 to supply the heat transfer fluid from the hot water tank 221 to the fluid inlet 13 When the temperature of the first thermoelectric element 241 is lower than the target temperature of the cold water (for example, 15 ° C) set in the cold water temperature sensor 32, the operation of the first thermoelement 241 is stopped, .

That is, if it is assumed that the initial temperature of the heat transfer fluid stored in the hot water tank 221 and the cold water tank 222 in the initial state is 25 ° C and the cooling and heating efficiencies of the thermoelectric elements 24 are equal to each other, If the temperature of the heat transfer fluid stored in the hot water tank 221 rises to 40 ° C by operating the first thermoelectric element 241, the temperature of the heat transfer fluid stored in the cold water tank 222 is lowered to 10 ° C.

However, as the temperature difference between the heating surface of the first thermoelectric element 241 and the cooling surface becomes larger, the efficiency of the first thermoelectric element 241 will be lowered, and the temperature of the heat transfer fluid stored in the water tank 222 will be lowered The operation of the first thermoelectric element 241 is stopped in order to prevent the cooling water tank 222 from overcooling and the continuous operation of the hot water tank 221 is stopped, And controls the DC supply part 25 to operate the second thermoelectric element 242 for heating.

Conversely, the switch control unit 40 operates the first thermoelectric element 241 and supplies the heat transfer fluid to the fluid inlet 14 from the cold water tank 222, The operation of the first thermoelectric element 241 is stopped to prevent the overheating of the hot water tank 221 when the temperature of the hot water tank 221 is higher than the target temperature of the hot water (for example, 36 ° C) 222 to control the DC supply 25 to operate the third thermoelectric element 243 for continuous cooling.

With the above-described configuration, the efficiency of the thermoelectric element 24 can be increased, and the user can easily change the cold and hot temperatures and effectively maintain the temperature suitable for skin care.

The cold switch switch massage pack using the thermoelectric element described above and shown in the drawings is only one embodiment for carrying out the present invention and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters set forth in the following claims, and the embodiments improved and changed without departing from the gist of the present invention are obvious to those having ordinary skill in the art to which the present invention belongs It will be understood that the invention is not limited thereto.

10 Mask
11 endothelium
12 envelope
13 fluid inlet
14 fluid outlet
Segregation of 15 euros
20 cold / hot supply
21 cases
22 water tank
221 Heated water tank
222 Cold water tank
23 Pump
24 Thermoelectric element
241 First thermoelectric element
242 Second thermoelectric element
243 Third thermoelectric element
25 direct current supply
26 heat sink
27 blowing fan
271 First blowing fan
272 Second blowing fan
28 Euro switching valve
30 sensor unit
31 Hot water temperature sensor
32 cold water temperature sensor
40 switch control section

Claims (6)

A mask having a fluid inlet and a fluid outlet communicating with the inner space on one side and formed with an inner skin and an outer skin bonded to each other so as to form an inner space in which the heat transfer fluid can be filled, Wow;
A coolant supply unit for heating or cooling the heat transfer fluid to supply the heat transfer fluid to the fluid inlet, and recovering and circulating the heat transfer fluid discharged to the fluid outlet; Including,
The cold / hot supply unit may include a water tank in which the heat transfer fluid is stored and recovered, a pump for pumping the heat transfer fluid stored in the water tank toward the fluid inlet, and a cooling surface and a heat surface by a Peltier effect, A thermoelectric element for cooling the thermally conductive fluid stored in the water tank by the cooling surface and heating the heat transfer fluid stored in the water tank by the heating surface, and a direct current supplying unit for supplying a direct current power to the thermoelectric element,
A switch controller for switching a direction of a current supplied to the thermoelectric element so as to switch and supply the heat transfer fluid heated or cooled by the operation of the user or for controlling the DC supply part so that the thermoelectric element is turned on and off, ; Further,
In the water tank, the hot water tank and the cold water tank are constructed independently from each other,
Wherein the thermoelectric element includes a first thermoelectric element having a heat surface attached to one side of the hot water tank and a cooling surface attached to one side of the cold water tank,
The cold / hot supply unit may further include a flow path switching valve for switching the hot water tank or the cold water tank to communicate with the fluid inlet and the fluid outlet of the mask,
The switch control unit controls the flow path switching valve by a user's operation,
Wherein the thermoelectric element further comprises a second thermoelectric element having a heating surface on the other side of the hot water tank and a third thermoelectric element having a cooling surface on the other side of the cold water tank,
A sensor unit including a hot water temperature sensor capable of measuring the temperature of the hot water tank and a cold water temperature sensor capable of measuring the temperature of the cold water tank; Further included,
Wherein the switch control unit operates the first thermoelectric element and supplies the heat transfer fluid to the fluid inlet from the hot water tank when the cold water temperature sensor detects a cold water target temperature or lower, The control unit stops the operation of the first thermoelectric element and activates the second thermoelectric element and when the temperature value of the hot water target temperature set in the hot water temperature sensor is sensed in a state of supplying the heat transfer fluid from the cold water tank to the fluid inlet, Wherein the control unit controls the DC supply unit to stop the operation of the thermoelectric element and operate the third thermoelectric element. The method according to claim 1,
The mask may include a flow path forming diaphragm that divides the inner space into a plurality of spaces communicating in series so that the heat transfer fluid flowing into the fluid inlet may entirely pass through the inner space and be discharged to the fluid outlet Hot switch switch massage pack featuring thermoelectric device. 3. The method according to claim 1 or 2,
Wherein the thermoelectric element is arranged so that one side thereof can exchange heat with the heat transfer fluid stored in the water tank and a heat sink is provided on the other side,
The cold / hot supply unit may further include a blowing fan for directing a flow of air around the heat sink,
Wherein the switch control unit switches the direction of the current supplied to the thermoelectric element such that one surface of the thermoelectric element, which is heat-exchanged with the heat transfer fluid stored in the water tank, is heated when the heat transfer fluid heated by the fluid inlet is supplied, When the heat transfer fluid cooled by the fluid inlet is supplied, the DC supply part is controlled to switch the direction of the current supplied to the thermoelectric element so that one surface of the thermoelectric element, which is heat-exchanged with the heat transfer fluid stored in the water tank, Wherein the thermoelectric device is a cold switch switch massage pack. delete delete delete

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