KR20210048470A - Cold or hot mattress apparatus using thermoelectric element - Google Patents

Abstract

Disclosed is a cold and warm mattress apparatus using a thermoelectric element capable of smoothly circulating cold or warm water without using a circulation pipe for cold and warm water even when used by a heavy user. The present invention comprises: a mattress unit (100) provided with a mattress body (110) having an inlet (112) and an outlet (114) on one side for injecting and discharging cold water or hot water, respectively, and circulating the cold water or the warm water along a circulation path (130) formed therein in advance; and a temperature control unit (200) connected to the inlet (112) and the outlet (114) of the mattress body (110) to heat or cool, in a preset temperature range, water to be supplied to the inlet (112) of the mattress body (110) according to an operation mode set by a user and supplying the heated or cooled water, wherein the circulation path (130) is formed such that a portion, in which a quilted portion (120) with a predetermined shape formed by fusing the mattress body (110) using ultrasonic waves is not formed, is formed to repeatedly connect S shapes.

Description

Cold or hot mattress apparatus using thermoelectric element

The present invention relates to a hot and cold mattress device using a thermoelectric element, and more particularly, to a hot and cold mattress device using a thermoelectric element capable of selectively supplying cold water or hot water to the interior of a mattress.

In general, mattresses are bedding used on the floor when sleeping or lying down, and at the same time as a cushioning material for a hard floor, they also act as an insulation material for the temperature of the floor surface. When such a mattress is used in summer or winter, a lot of efforts have been made to add a cooling or heating function to the mattress because it cannot satisfy a comfortable sleep or rest environment.

For example, in Utility Model Registration No. 20-0378388, a circulation pipe filled with a heat medium is installed inside the mattress, and a circulation pump is connected between the circulation pipe and the thermoelectric element. It is described. These mattresses compare the set temperature with the mattress temperature, and when the mattress temperature is higher than the set temperature, current is applied to the thermoelectric element in the cooling direction, and when the mattress temperature is lower than the set temperature, the current is applied to the thermoelectric element in the heating direction. By applying, it is possible to create a comfortable sleeping environment.

At this time, the thermoelectric element includes a reaction surface opposite to the working surface that heats or cools the heat medium, and the smaller the temperature difference between the working surface and the reaction surface (S3), the higher the heating or cooling efficiency, so the temperature change of the reaction surface is reduced. It must be prevented. Therefore, heat dissipation fins and heat dissipation fans were installed on the reaction surface to improve heat transfer to the atmosphere. However, when the mattress is heated with a thermoelectric element, cooling occurs on the reaction surface, and in this case, the heat dissipation fin and the heat dissipation fan have very little effect of raising the temperature of the reaction surface. Furthermore, when the heating action of the thermoelectric element continues, the reaction surface continues to cool, and eventually, there is a problem in that the heat dissipation fin is frosted, and the efficiency of the thermoelectric element is further lowered.

In order to solve this problem, Korean Patent Laid-Open Publication No. 10-2015-0137980 (2015.12.09) has a cooling/heating function that can automatically control the heat absorbing action of the reaction surface of the thermoelectric element in the optimal temperature condition in the heating mode. A mattress temperature control device is disclosed.

However, in the conventional technology mentioned above, a separate circulation pipe for hot and cold water is installed inside the mattress. When a user with a heavy weight lies down and uses it, the circulation of cold or hot water is prevented in the circulation pipe for hot and cold water located in the part where the load is concentrated. As it was not smooth, it eventually became a factor that lowered the overall cooling and heating effect.

Registered Patent Publication No. 10-1701931 (2017.02.03) Registered Patent Publication No. 10-0711250 (2007.04.25) Registered Patent Publication No. 10-1470422 (2014.12.08) Publication Patent No. 10-2017-0024900 (2017.03.08)

The present invention was conceived to overcome the disadvantages of the prior art described above, and an object of the present invention is to facilitate circulation of cold or hot water without using a circulation pipe for hot and cold water even when a user with a heavy weight is used. It is to provide a hot and cold mattress device using a thermoelectric element.

Another object of the present invention is to perform temperature deviation control in which heat is automatically applied to the reaction surface of the thermoelectric element when the external temperature and the temperature of the reaction surface of the thermoelectric element are out of a preset temperature range in the heating mode or the cooling mode. It is to provide a hot and cold mattress device using a thermoelectric element.

A cold and hot mattress device using a thermoelectric element according to the present invention for achieving such an object includes a mattress body 110 having an injection hole 112 and a discharge hole 114 for injecting or discharging cold water or hot water on one side thereof, respectively. And, the mattress unit 100 for circulating cold water or hot water along the circulation path 130 formed in advance; It is connected to the injection port 112 and the discharge port 114 of the mattress body 110, respectively, and the temperature of the supply water supplied to the injection port 112 of the mattress body 110 is preset according to the setting of the operation mode of the user. It consists of a temperature control unit 200 for heating or cooling in a temperature range and supplying; The circulation path 130 is characterized in that the portion of the mattress body 110 in which the quilted portion 120 of a predetermined shape is fused and formed using ultrasonic waves is formed to be repeatedly connected in an S-shape.

The hot and cold mattress device using the thermoelectric device according to the present invention as described above has the following effects.

First, it is possible to provide a mattress structure capable of smoothly circulating cold or hot water without using a circulation pipe for hot and cold water even when a user with a heavy weight uses it, thereby improving the transfer efficiency of heat transfer media such as cold water or hot water. Not only can it be used, it has the effect of extending the horizontality of the product.

In addition, in the heating mode or the cooling mode, if the temperature of the reaction surface of the thermoelectric element and the external temperature are out of the preset temperature range, temperature deviation control can be executed to automatically apply heat to the reaction surface of the thermoelectric element. It is possible to relatively improve the heat absorbing function of the reaction surface of the thermoelectric element compared to the conventional products used, and finally, the heating capacity of the working surface of the thermoelectric element can also be improved.

In addition, it prevents exposure to electromagnetic waves generated by the product when a user uses it for sleeping or rest, and has the effect of reducing vibration and noise when using it for sleeping or rest.

1 is a block diagram showing the configuration of a hot and cold mattress device using a thermoelectric device according to a first embodiment of the present invention;
2 and 3 are views showing a deformation of a mattress body of a hot and cold mattress device using a thermoelectric device according to a first embodiment of the present invention;
4 is a block diagram of a control unit of a hot and cold mattress device using a thermoelectric device according to a first embodiment of the present invention;
5 is a view for explaining an installation example of an electric heating element of a hot and cold mattress device using a thermoelectric element according to a first embodiment of the present invention,
6 is a view for explaining a state of use of a mattress part of a hot and cold mattress device using a thermoelectric device according to a first embodiment of the present invention;

1 is a block diagram showing the configuration of a hot and cold mattress device using a thermoelectric device according to a first embodiment of the present invention.

Referring to FIG. 1, the mattress body 110 using a thermoelectric element according to a preferred embodiment of the present invention includes an injection port 112 and a discharge port 114 for injecting or discharging cold water or hot water on one side. ) And is connected to the mattress unit 100 for circulating cold water or hot water along the circulation path 130 previously formed therein, and to the injection port 112 and the discharge port 114 of the mattress body 110, respectively, and the user It consists of a temperature control unit 200 that heats or cools the temperature of the feed water supplied to the inlet 112 of the mattress body 110 in a preset temperature range according to the setting of the operation mode of.

Here, the circulation path 130 is formed so that the portion where the quilted part 120 of a predetermined shape formed by fusion bonding the mattress body 110 using ultrasonic waves is repeatedly connected in an S-shape, and the circulation path 130 The width (W2) of the quilted part 120 is formed relatively smaller than the width (W1) of the quilted part 120, the length (h2) of the circulation path 130 is the height (h1) of the quilting part 120 is formed to be the same height. It is desirable.

In addition, it is preferable that heat transferable gas (air, gas), liquid (water, oil, gel) or powder (various stone powder) is sealed in the interior of the quilting unit 120 using a known technique. .

Such a circulation path 130, as shown in Figure 1, starting from the injection hole 112 formed on one side of the mattress body 110, in the transverse or longitudinal direction, the S-shaped to the opposite side of the injection hole 112 A first shape formed to be repeatedly connected to the other end of the mattress body 110 and connected to the discharge port 114 in a straight line from the other end of the mattress body 110, as shown in FIG. Likewise, starting from the injection hole 112 formed on one side of the mattress body 110, it is formed in a linear shape to the other end of the mattress body 110, and from the other end of the mattress body 110 in the transverse or longitudinal direction. A second shape that is repeatedly formed so that the S-shape is connected to the discharge port 114, starting from the injection hole 112 formed on one side of the mattress body 110, as shown in FIG. 1 S-shape is repeatedly formed to be connected to the other end of the mattress body 110 located on the opposite side of the injection hole 112, and a second S-shape from the other end of the mattress body 110 in the transverse or longitudinal direction It is preferable that it is any one shape selected from among the third shapes that are repeatedly formed so that the shape is connected to the discharge port 114.

In addition, in the third shape, a pair of S-shaped shapes were formed in a symmetrical structure in the vertical direction (or left and right) with each other, as shown in FIG. 3, but the pair of S-shaped shapes were the same, but the asymmetrical structures were staggered It will be possible to be formed in the shape of.

In addition, the temperature control unit 200, as shown in FIG. 1, a supply port 212 and a water collecting port 214 for supplying or collecting cold water or hot water on one side, and a housing body having an installation space therein. 210 and an operation unit 220 installed on one side of the housing body 210 and configured to select power on/off, cooling mode, and heating mode according to a user's manipulation, and to control cooling or heating temperature, A thermoelectric element that is installed inside the housing body 210 and performs heat-absorbing or heat-absorbing action on the working surface S1 according to the operation of the operation unit 220, and performing heat absorption or heat-generating operation on the reaction surface S3. It is installed to be interviewed on the working surface (S1) and the reaction surface (S3) of the thermoelectric element 230, respectively, to discharge heat and cold air generated by the heat generation or heat absorption operation of the thermoelectric element 230 to the outside. A heat dissipation element 240 having an acting-side heat sink 240a and a reaction-side heat sink 240b, and installed inside the housing body 210, the thermoelectric element 230 according to an operation command through the operation unit 220 A control unit 250 for selectively controlling an operation; Under the control of the controller 250, the electric heating element 260 for heating the reaction-side heat sink 240b of the heat radiation element 240, the supply port 212 of the housing main body 210, and the mattress main body 110 First and second supply hoses 272 and 274 are provided between the injection ports 112 and respectively connected to the water collecting port 214 of the housing main body 210 and the discharge port 114 of the mattress main body 110, and the thermoelectric element 230 ), a heat exchanger 270 that continuously performs heat exchange of the supplied water through the acting side heat sink 240a of the heat dissipation element 240 installed to be interviewed on the working surface of the heat exchanger 270, and is installed inside the heat exchanger 270, the mattress The submersible pump 280 forcibly sucking cold water or hot water discharged from the discharge pipe 114 of the main body 110 into the inside of the heat exchanger 270, and the thermoelectric element 230 under the control of the controller 250. The working side heat sink 240a of the power supply unit 290 for supplying DC power or for heating the electric heating element 260 and the heat dissipating element 240 installed to be interviewed on the working surface of the thermoelectric element 230 ) Installed in the first temperature sensing sensor 310, the second temperature sensing sensor 320 installed on the reaction side heat sink 240b of the heat dissipation element 240 installed to be interviewed on the reaction surface S3 of the thermoelectric element 230, It is composed of a temperature sensing unit 300 composed of a third temperature sensing sensor 330 installed on one side of the housing body 210.

Here, the thermoelectric element 230 is also expressed as a Peltier element, a thermoelectric conversion element, a semi-equal element, a Peltier element, a temperature module, and a TEC, and is a semiconductor element that freely controls cooling or heating temperature by direct current. By flowing a direct current, (1) a temperature difference occurs on both sides of the device, and (2) heat absorption occurs on the low-temperature side and heat is generated on the high-temperature side, pushing heat from the low-temperature side to the high-temperature side of the thermoelectric device. That is, it acts as a heat pump, and (3) changing the direction of the heat pumped by simply changing the polarity of the current and also changing the size of the current, it is possible to change the amount of heat to be pumped.

In addition, the control unit 250, as shown in Figure 4, A / D converter 251 for converting the temperature value sensed in the form of an analog signal by the first to third temperature sensors 310, 320, 330 into a digital signal. Wow, the forward/reverse conversion circuit 252 for converting the direction of the current applied to the thermoelectric element 230, and the temperature value detected by the first to third temperature sensors 310, 320, and 330 according to the temperature value set by the control unit 220 A microprocessor 253 that controls the direction of the output current of the forward/reverse conversion circuit 252, controls the power supply unit 290 to heat the electric heating element 260, or controls the operation of the submersible pump 280 according to ).

Here, the microprocessor 253 of the control unit 500 smoothly absorbs heat of the reaction surface S3 of the thermoelectric element 230 when the outside air temperature of the housing body 210 is an image, as shown in FIG. 3. In order to prevent condensation or water vapor condensation on the reaction surface (S3) of the thermoelectric element 230, it is controlled to be relatively 2~3℃ lower than the outside temperature of the housing body 210, and when the outside temperature is below zero, the outside temperature is ignored. It is preferable to control the temperature so that it does not occur, and a detailed description thereof will be described later in the operation of the invention.

In addition, the electric heating element 260 may be selected from an electric resistance heating wire, a PCT heating element, a coil heater, an input heater, a cartridge heater, a casting heater, a seed heater, a halogen heater, an infrared heater, a fin heater, a ceramic band heater, a flange heater, etc. It can be used, and all heating elements using electricity are applicable.

In the first preferred embodiment of the present invention, the electric heating element 260 is a reaction-side heat sink 240b of the heat dissipation element 240 installed to be interviewed on the reaction surface S3 of the thermoelectric element 230, as shown in FIG. 5. ), it may be installed to be in close contact with the side of the heat dissipation element 240, or to be inserted and fixed between the heat dissipating fins provided on the reaction side heat dissipating plate 240b of the heat dissipating element 240.

In addition, the power supply unit 290 selectively includes a battery (not shown) that can store electric energy to have a wireless function, so that the hair dryer can selectively have wireless, wired, and wired/wireless functions, thus implementing wireless functions. It has the advantage of improving energy efficiency and enhancing product competitiveness.

Hereinafter, an operation of a hot and cold mattress device using a thermoelectric device according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

(1) Initial state setting

In order for the user to use the cold and hot mattress device according to the present invention, in the case of a wired product, the electric cord drawn outward to the power supply unit 290 is connected to a power outlet, and in the case of a wireless product, the battery provided in the power supply unit 290 is connected. When the on/off switch of the control unit 220 is turned on while charging for a certain period of time and supplying sufficient water to the inside of the heat exchanger 270 connected to the mattress body 110, the control unit 250 It is determined whether there is any abnormality in the initial state of and, if it is determined as a normal state, the normal state is indicated by using a status indicator mounted on the outer surface of the housing main body 210.

(2) Operation mode setting

When the current state is determined to be a normal state, the user manipulates the operation unit 220 to select a desired operation mode from a cooling mode supplying cold water in a preset range and a heating mode supplying hot water (S11).

At this time, the microprocessor 253 of the control unit 250 determines whether the current operation mode selected by the user is a cooling mode or a heating mode (S12).

(3) Heating mode operation

At this time, when the result of the operation mode determination step (S12) is determined to be a heating mode, the microprocessor 253 of the controller 250 controls the forward/reverse switching circuit 530 to heat exchange the direction of the current entering the thermoelectric element 310. A current in a direction in which the working surface S1 of the thermoelectric element 310 installed so as to be in surface contact with the working-side heat sink 240a installed inside the unit 270 is applied to the thermoelectric element 310 (S13).

Accordingly, the working surface S1 of the thermoelectric element 230 emits heat while the reaction surface S3 of the thermoelectric element 230 can absorb heat. Only the heat dissipation plate 240a on the working side of the heat dissipation element 240 installed to be in contact with the surface is installed inside the heat exchanger 270, so that only the function of dissipating heat is used to execute the heating mode (S14).

At the same time, the microprocessor 253 of the controller 250 operates the submersible pump 280 to supply the supply water heated inside the heat exchanger 270 by connecting the supply port 212 and the injection port 112 The hose 272 -> circulation path 130 -> the supply hose 274 connected between the discharge port 114 and the water collecting port 214 -> heat exchanger 270 is repeatedly circulated (S15).

At this time, hot water of 50 to 60° C. heated by using the heat sink 240a on the working side of the heat radiating element 240 installed on the working surface S1 of the thermoelectric element 230 is formed in the inside of the mattress body 110 ( While circulating through 130), the mattress body 110 is heated to perform a heating operation (S16).

On the other hand, when the current operation mode is determined as the heating mode, the microprocessor 253 of the control unit 250 includes a temperature sensing value of the second temperature sensing sensor 320 installed on the reaction-side heat sink 240b and the housing body 210 The difference between the two temperature values converted into a digital signal through the A/D converter 251 from the temperature sensing value of the third temperature sensing sensor 330 installed at one side of the is a preset temperature range (from -2 to 3 at the current outside temperature). ℃ ~ +2 ~ 3 ℃ range), the heat absorption function of the reaction side heat sink 240b of the heat dissipation element 240 is judged to be abnormal due to reasons such as frost or condensation of water vapor, and the electric heating element 260 Is operated for a preset time (S17).

For example, when the user sets the heating mode as the current operation mode, the temperature value detected by the second temperature sensor 320 installed on the reaction-side heat sink 240b is 5°C, and is installed in the housing body 210. When the temperature detection value of the third temperature sensor 330 is 15°C, the microprocessor 253 of the control unit 250 is a second temperature sensor 320 installed on the reaction-side heat sink 240b of the heat dissipation element 230. Controls the operation of the power supply unit 290 to operate the electric heating element 260 until the temperature value sensed by) reaches 8 to 9°C.

That is, the microprocessor 253 of the control unit 250 has a reaction side heat sink 240b of the heat dissipation element 240 installed to interview the reaction surface S3 of the thermoelectric element 230 when the outside air temperature is an image. Heat dissipation installed so as to interview the reaction surface (S3) of the thermoelectric element 230, ignoring the outside temperature when the outside temperature is below zero and controlling the temperature to be relatively 2~3℃ lower than the outside temperature of the housing body 210 so that it is smooth. It is preferable to perform temperature deviation control so that condensation or condensation of water vapor does not occur in the reaction-side heat sink 240b of the element 240.

The reason for performing the temperature deviation control in this way is that when heat is applied to the reaction-side heat sink 240b of the heat dissipation element 240 installed to interview the reaction surface S3 of the thermoelectric element 230, the thermoelectric element 310 This is because the heat-absorbing heat is smoothly performed in the heat-radiating plate 240a on the working side of the heat-radiating element 240 installed to be interviewed on the working surface S1, and as a result, the heating efficiency can be maximized.

(4) Cooling mode

On the other hand, if the result of the current operation mode determination step (S12) is determined to be a cooling mode, the microprocessor 253 of the controller 250 controls the forward and reverse switching circuit 530 to determine the direction of the current entering the thermoelectric element 310. A current in the direction in which the working surface S1 of the thermoelectric element 310 installed so as to make surface contact with the working side heat sink 240a installed inside the heat exchanger 270 is absorbed is applied to the thermoelectric element 310 (S21). ).

Accordingly, the working surface S1 of the thermoelectric element 230 can absorb heat and the reaction surface S3 of the thermoelectric element 230 can dissipate heat. Since only the heat dissipation plate 240a on the working side of the heat dissipation element 240 in contact with the surface is installed inside the heat exchanger 270, only the function of absorbing heat is used to execute the cooling mode (S22).

At the same time, the microprocessor 253 of the controller 250 operates the submersible pump 280 to supply the water cooled in the heat exchanger 270 to the supply hose 212 and the inlet 112 (272) -> circulation path 130 -> the supply hose 274 connected between the discharge port 114 and the water collecting port 214 -> heat exchanger 270 is repeatedly circulated (S23).

At this time, the cold water of 10 to 19° C. cooled using the heat sink 240a on the working side of the heat radiating element 240 installed to be interviewed on the working surface S1 of the thermoelectric element 230 is formed inside the mattress body 110 While circulating through the path 130, the mattress body 110 is heated to perform a heating operation (S24).

Accordingly, even when a user with a heavy weight uses it, as shown in FIG. 6, the width W2 of the circulation path 130 is formed relatively smaller than the width W1 of the quilting part 120, and the circulation path Since the length (h2) of 130 is formed at the same height as the height (h1) of the quilting part 120, most of the load of the user is handled by the pressed part 120, and the circulation path 130 is It can have a free structure against the load of, it is possible to provide a mattress structure in which cold water or hot water can be smoothly circulated.

The embodiments of the present invention disclosed in the specification and drawings described above are merely specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is obvious to those of ordinary skill in the art that other modifications based on the technical idea of the present invention may be implemented.

100: mattress unit 110: mattress body
112: injection port 114: discharge port
120: pressed part 130: circulation path
200: temperature control unit 212: supply port
214: suction port 210: housing main body
220: control unit 230: thermoelectric element
240: radiating element 240a: working side heat sink
240b: reaction side heat sink 250: control unit
251: A/D converter 252: forward and reverse conversion circuit
253: microprocessor 260: electric heating element
270: heat exchanger 272, 274: supply hose
280: submersible pump 290: power supply
300: temperature sensing unit 310,320,330: temperature sensing sensor

Claims (6)

A mattress having an injection port 112 for injecting or discharging cold water or hot water on one side and a mattress body 110 each having a discharge port 114 formed therein, and circulating cold water or hot water along the circulation path 130 previously formed therein. Unit 100;
It is connected to the injection port 112 and the discharge port 114 of the mattress body 110, respectively, and the temperature of the feed water supplied to the injection port 112 of the mattress body 110 is preset according to the setting of the operation mode of the user. It consists of a temperature control unit 200 for heating or cooling in a temperature range and supplying;
The circulation path 130 is formed so that the portion of the mattress body 110 where the quilted portion 120 of a predetermined shape is not formed by fusion bonding the mattress body 110 is repeatedly connected in an S shape,
Starting from the injection hole 112 formed on one side of the mattress body 110, a first S-shaped shape in the transverse or longitudinal direction to the other end of the mattress body 110 located opposite the injection hole 112 It is repeatedly formed to be connected, and is provided in a shape that is repeatedly formed so that a second S-shape is connected to the discharge port 114 in the transverse or longitudinal direction from the other end of the mattress body 110,
A cold and hot mattress device using a thermoelectric element including a battery capable of storing electrical energy to have a wireless function. The method of claim 1,
A cold and hot mattress device using a thermoelectric element, characterized in that a gas, liquid, or powder capable of heat transfer is inserted into the inside of the quilting unit 120 so as to be sealed. The method of claim 1,
A cold/hot mattress device using a thermoelectric element, characterized in that the width W1 of the circulation path 130 is formed relatively smaller than the width of the quilted part 120. The method of claim 1,
The temperature control unit 200,
A housing body 210 having a supply port and a suction port for supplying or collecting cold water or hot water on one side, and having an installation space therein;
An operation unit 220 installed on one side of the housing body 210 and configured to select power on/off, a cooling mode, and a heating mode according to a user's manipulation, and to adjust a cooling or heating temperature;
A thermoelectric element 230 installed inside the housing body 210 to perform heat generation or heat absorption operation on the working surface according to the operation of the operation unit 220, and heat absorption or heat generation operation on the reaction surface, and ;
Action side heat sink installed to be interviewed on the working surface (S1) and the reaction surface (S3) of the thermoelectric element 230, respectively, to discharge heat and cold air generated by the heat generation or heat absorption operation of the thermoelectric element 230 to the outside A heat dissipation element 240 including a heat dissipation plate 240a and a reaction side heat dissipation plate 240b;
A control unit 250 installed inside the housing body 210 and selectively controlling an operation of the thermoelectric element 230 according to an operation command through the operation unit 220;
An electric heating element 260 for heating the reaction side heat dissipation plate 240b of the heat dissipation element 240 under the control of the control unit 250;
Between the supply port 212 of the housing main body 210 and the injection port 112 of the mattress main body 110, the water collecting port 214 of the housing main body 210 and the discharge port 114 of the mattress main body 110 Heat exchange of the supply water through the heat sink 240a on the working side of the heat sink 240 provided to have first and second supply hoses 272 and 274 respectively connected to the thermoelectric element 230 to be interviewed on the working surface of the thermoelectric element 230 A heat exchanger 270 that continuously executes;
A water pump 280 installed inside the heat exchanger 270 to forcibly suck cold water or hot water discharged from the discharge pipe 114 of the mattress body 110 into the heat exchanger 270 ;
A power supply unit 290 for supplying DC power to the thermoelectric element 230 or for heating the electric heating element 260 under the control of the control unit 250;
The first temperature sensor 310 installed on the working side heat sink 240a of the heat dissipating element 240 installed so as to be interviewed on the working surface of the thermoelectric element 230, Temperature sensing consisting of a second temperature sensing sensor 320 installed on the reaction side heat sink 240b of the heat dissipation element 240 installed to be interviewed, and a third temperature sensing sensor 330 installed on one side of the housing body 210 Cold and hot mattress device using a thermoelectric element, characterized in that configured to include the unit (300). The method of claim 4,
The control unit 250,
An A/D converter 251 for converting a temperature value sensed in the form of an analog signal by the first to third temperature sensors 310, 320, and 330 into a digital signal;
A forward and reverse conversion circuit 252 for converting a direction of a current applied to the thermoelectric element 230;
Controls the direction of the output current of the forward/reverse switching circuit 252 according to the temperature values detected by the first to third temperature sensors 310, 320, 330 according to the temperature value set by the control unit 220, or the electric heating element ( A hot and cold mattress device using a thermoelectric element, comprising: a microprocessor (253) controlling the power supply unit 290 to heat the 260 or controlling the operation of the submersible pump 280. The method of claim 5,
The microprocessor 253 of the control unit 250,
When the outside air temperature of the housing body 210 is an image, the temperature of the reaction surface of the thermoelectric element 230 is controlled to be relatively 2 to 3° C. lower than the outside temperature of the housing body 210 so that heat absorption is smooth. And, when the outside temperature is below zero, the outside temperature is ignored and the temperature is controlled so that condensation or condensation of water vapor does not occur on the reaction surface of the thermoelectric element 230.

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