KR200168479Y1 - Water purifier using peltier device of metal substrate - Google Patents

Abstract

The present invention relates to a water purifier using a thermoelectric cold / hot element of a metal substrate, and a water purifier using a thermoelectric cold / hot element that minimizes noise and minimizes an additional cooling system by cooling water that has passed through the filter through a cooling plate. To obtain

A first thermoelectric element for conducting latent heat of drinking water absorbed by the internal heat pipe, a first conductive part for absorbing the latent heat of drinking water conducted by the first thermoelectric element, and a latent heat of drinking water absorbed by the first conductive part Second and third thermoelectric elements that conduct the external heat pipes through the second conductive part surrounding the lower portion of the heat pipe, and the second and third thermoelectric elements according to cooling and heat dissipation side temperatures of the second and third thermoelectric elements. In the control circuit unit for converting the direction of the thermal conductivity of the thermoelectric element in the reverse direction, the thermoelectric cold and warm element is an insulating material using a copolymer of a resin of flexibility, high insulation and high thermal conductivity resin to cope with thermal expansion is first coated with an electrical insulating film After heat-treating the metal plate in the firing furnace, the secondary insulating film of the paste is coated, and the necessary pattern on the copper foil surface is obtained by using the adhesive force of the insulating film. Etching maximizes the cooling efficiency and the thickness of the metal substrate by attaching a N-type semiconductor chip and a P-type semiconductor chip in a sandwich arrangement between the metal substrate and the two metal plates. Since it increases the robustness and conductivity is very excellent.

Description

Water purifier using peltier device of metal substrate

The present invention relates to a water purifier using a thermoelectric cold / hot element of a metal substrate, and more particularly, a thermoelectric cold / hot element which reduces noise and minimizes an additional cooling system by cooling water that has passed through a filter through a cold plate of a thermoelectric element of a metal substrate. It relates to a water purifier using.

In the conventional cold water apparatus of Korean Patent Publication No. 98-10272, the cold water machine includes a built-in heat pipe that absorbs latent heat of drinking water and an external heat pipe that discharges the latent heat of drinking water conducted by the built-in heat pipe to the outside. The outer heat pipe includes a first thermoelectric element that conducts latent heat of drinking water absorbed by the heat pipe, a first conductive part that absorbs latent heat of drinking water conducted by the first thermoelectric element, and a latent heat of drinking water absorbed by the first conductive part. Second and third thermoelectric elements which conduct the external heat pipes through the second conductive part surrounding the lower portion of the second and third thermoelectric elements, and the second and third thermoelectric elements according to cooling and heat dissipation side temperatures of the second and third thermoelectric elements. The control circuit section for switching the direction of heat conduction to the reverse direction was used.

However, the thermoelectric element used in the conventional cold water as described above determines the element whose cooling capacity is determined according to the ability of suppressing the heat generation temperature of the heat dissipation surface of the thermoelectric element. There was a problem that a heat transfer conductor was not used in a module.

Another problem is that a chip is used between two sheets on a ceramic plate so that heat generated from the chip cannot be instantaneously radiated, thereby reducing the efficiency of the refrigerator.

More importantly, since the assembly is made of a thin ceramic plate, the mechanical strength, which is very weak against impact, drops, and the conventional thermoelectric device has a problem in that the substrate is cracked due to the flexibility of the substrate and a slight pressure difference in the substrate of the device. .

In order to determine the factor that determines the cooling capacity according to the ability of suppressing the heat generation temperature of the heart surface of the thermoelectric element, the heat transfer module is not used because of the problem of the chip itself, not the temperature of the conventional ceramic plate. There was a problem.

Therefore, the present invention was devised to solve the above problems. The water purifier maximized the thermal efficiency of the water purifier, and the thermoelectric element used for the heat generating part and the cooling part is mounted by using the thermoelectric cold / heat element of the metal substrate to maximize the cooling efficiency. To provide.

In order to achieve the above object, the present invention absorbs a first thermoelectric element that conducts latent heat of drinking water absorbed by a plurality of high performance filter units and a built-in heat pipe, and absorbs the latent heat of drinking water conducted by the first thermoelectric element. Second and third thermoelectric elements for conducting the first heat conduction portion and latent heat of drinking water absorbed by the first conduction portion to the external heat pipe through the second electric conduction portion surrounding the lower portion of the external heat pipe; In the control circuit unit for switching the heat conduction direction of the second and third thermoelectric elements in the reverse direction according to the temperature of the cooling and heat dissipation side of the third thermoelectric element, the thermoelectric element has high flexibility and high insulation and high thermal conductivity to cope with thermal expansion. After heat-treating the metal plate primary coated with an electrical insulating film with an insulating material using a copolymer of resin in a calcination furnace, and then the secondary insulating film of the paste Etching the necessary pattern on the copper foil surface by using the adhesive force of the insulating film to arrange a N-type semiconductor chip and a P-type semiconductor chip between the metal substrate and the two metal plates in a sandwich form. It is equipped with a thermoelectric cold / heat element of one structure.

1 is a cross-sectional view showing a water purifier using a thermoelectric cold element of a metal substrate of a preferred embodiment of the present invention,

FIG. 2 is an exploded state diagram showing the thermoelectric cold element of FIG. 1;

3 is a block diagram showing a control circuit unit for controlling a thermoelectric cold / hot element of the present invention.

Explanation of symbols on the main parts of the drawings

A ': thermoelectric cold element A-1: first thermoelectric element

A-2: 2nd thermoelectric cold element A-3: 3rd thermoelectric cold element

A1: Cooling part A2: Radiating part

A3: N-type semiconductor chip A6: wire part

A4: P-type semiconductor chip A5: heat transfer film

10: heat insulation case 20: ceramic coating layer

30: import port 40: export port

50: built-in heat pipe 60: heat radiation fin

80: external heat pipe 90, 100: conduction unit

110: first thermoelectric cold element 120: second thermoelectric cold element

130: third thermoelectric cold element 140: temperature detector

150: first rectifier 160: second rectifier

170: control unit

Hereinafter, with reference to the accompanying drawings, a water purifier using a thermoelectric cold element of a preferred embodiment of the present invention will be described in detail.

1 is a cross-sectional view showing a cold water purifier using a thermoelectric cold element of the metal substrate of a preferred embodiment of the present invention, Figure 2 is an exploded state diagram showing the thermoelectric cold element of Figure 1, Figure 3 is a thermoelectric cold element of the present invention Is a block diagram showing a control circuit unit for controlling the control circuit.

The water purifier using the thermoelectric cold / heat element of the metal substrate of the present invention shown in Figs. 1 to 3 includes a plurality of high-performance filter units, a first thermoelectric element conducting latent heat of drinking water absorbed by the internal heat pipe 50, and The external heat pipe through the first conductive part absorbing the latent heat of the drinking water conducted by the first thermal element 110 and the second conductive part surrounding the lower portion of the external heat pipe for the latent heat of the drinking water absorbed by the first conductive part. The second and third thermoelectric elements to be conducted in the reverse direction, and the heat conduction direction of the second and third thermoelectric elements (120, 130) to reverse the direction according to the cooling and heat dissipation side temperature of the second and third thermoelectric elements (120, 130) In the control circuit unit 170, the thermoelectric cold / heating element (A) is an insulating material using a copolymer of a resin that is flexible and has high insulation and high thermal conductivity to cope with thermal expansion. After the heat treatment in the furnace, the secondary insulating film of the paste (Paste), and the necessary pattern on the surface of the copper foil using the adhesive strength of the insulating film to etch the metal substrate (A-1, A-2) ) And a thermoelectric cold / heat element (A) having a structure in which an N-type semiconductor chip (A-3) and a P-type semiconductor chip (A-4) are sandwiched between the two metal plates. .

Since the high performance filter unit is a filter of a water purifier used in the related art, the filter has been shown from the supply of purified water passed through the filter.

First, a plurality of thermoelectric cold / heat elements A are coupled and cascaded between the internal heat pipe 50 and the external heat pipe 80 mounted on the inner and outer sides of the heat insulating case 10 of the cold water machine. The first thermoelectric cold / heat element A-1, which is used as a cooling unit, is mounted between the built-in heat pipe 50 and the first conductive unit 90, and the second and third thermoelectric cold / temperature elements used as a heat dissipation unit. A-2 and A-3 are mounted between the first conductive portion 90 and the second conductive portion 100 surrounding the lower portion of the outer heat pipe 80.

On the other hand, the first to third thermoelectric cold elements (A-1, A-2, A-3) is coupled to a control circuit unit for controlling the operation of the thermoelectric elements, as well as supplying power to the thermoelectric elements. As shown in FIG. 3, the control circuit unit rectifies commercial power and supplies the rectifier circuits 150 and 160 to the thermoelectric elements A-1, A-2, and A-3, and the rectifier circuits 150, The temperature detector 140 detects the cooling and heat dissipation side temperatures of the thermoelectric cold elements A-1, A-2, and A-3 driven by the power supplied from the 160 and the output of the temperature detector 140. The controller 170 is configured to switch the polarity of the power applied to the second and third thermoelectric cold / hot elements A-2 and A-3 according to the signal to reverse the heat conduction direction.

According to the present invention configured as described above, when drinking water is supplied into the heat insulation case 10 through the import port 30, the internal heat pipe 50 absorbs the latent heat of the drinking water through the cooling fins. Accordingly, the latent heat of drinking water absorbed by the built-in heat pipe 50 by the first thermal element A-1 used as the cooling unit is conducted to the first conductive unit 90.

Meanwhile, the second and third thermoelectric cooler elements A-2 and A-3 conduct latent heat of drinking water conducted to the first conductive portion 90 to the external heat pipe 80 through the second conductive portion 100. . Accordingly, the external heat pipe 80 cools the drinking water by discharging the latent heat of the conductive drinking water to the outside through the heat dissipation fin 60.

When the heat radiation side temperature of the second and third thermoelectric cold elements 120 and 130 detected by the temperature detector 140 during operation as described above rises to a reference temperature, for example, 25 ° C. or more, As the heat exchange is not performed smoothly, the controller 170 transmits a control signal for switching the polarity of the power applied to the second and third thermoelectric cold elements A-2 and A-3 to the rectifier circuit unit 160. Will be authorized.

Accordingly, as the rectifier circuit 160 applies power having reversed polarity to the second and third thermoelectric cold / heat elements 120 and 130, the thermal conduction of the second and third thermoelectric cold / heat elements A-2 and A-3. The direction is reversed. That is, the second and third thermoelectric cold / heat elements A-2 and A-3 used as the heat dissipation part absorbing heat from the first conductive part 90 and conducting the conductive heat pipe 80 to the external heat pipe 80 are the external heat pipe 80. The function is switched to a cooling unit that absorbs heat and conducts it to the first conductive unit 90.

As described above, when the second and third thermoelectric cold / heat elements are switched to the cooling unit, the temperature is lowered by absorbing heat from the external heat pipe 80 and conducting the heat to the first conductive unit 90.

On the other hand, as described above, when the temperature of the external heat pipe 80 is lowered and the temperature of the external heat pipe 80 drops to 25 ° C. or less, the controller 170 controls the second and third thermoelectric cold / heat elements A-2, A control signal for switching the polarity of the power applied to A-3) is output to the rectifier circuit unit 160.

Accordingly, the rectifying circuit 160 applies the reversed power to the second and third thermoelectric elements 120 and 130 so that the second and third thermoelectric elements A-2 and A-3 are in thermal conduction directions. In this reverse direction, the heat of the first conductive portion 90 is discharged to the outside through the external heat pipe 80.

As described above, the present invention can increase the thickness of the metal plate of the cooling part, so that the temperature of the built-in heat pipe can be drastically lowered, so that the thermoelectric cold / war element used as the heat dissipation part as a cooling part is used as a cooling part between the external heat pipes. In addition to maximizing the cooling efficiency of the water cooler as well as switching, there is no damage to the device due to the temperature conversion function has the effect that does not degrade is a very useful design in the water purifier industry.

Claims (1)

In the cold water having a plurality of high-performance filter unit, the built-in heat pipe 50 for absorbing the latent heat of drinking water, and the external heat pipe 80 for discharging the latent heat of drinking water conducted from the built-in heat pipe 50 to the outside The first thermoelectric element 110 conducts latent heat of drinking water absorbed by the internal heat pipe 50, and the first conductive part 90 absorbs latent heat of drinking water conducted by the first thermoelectric element 110. ) And second and third conducting latent heat of drinking water absorbed by the first conductive part 90 to the external heat pipe 80 through the second conductive part 100 surrounding the lower portion of the external heat pipe 80. In the control circuit unit for switching the thermal conduction direction of the second and third thermoelectric elements in the reverse direction in accordance with the temperature of the thermoelectric elements (120, 130) and the cooling and heat dissipation side of the second and third thermal elements (120, 130) The thermoelectric element has flexibility and high insulation to cope with thermal expansion and After heat-treating the metal plate first coated with an electrical insulating film with an insulating material using a copolymer of a high conductivity resin in a calcination furnace, secondary coating of a paste-like insulating film is carried out. ) The required pattern on the foil surface is etched to cool and heat dissipate the metal substrates (A-1, A-2), the N-type semiconductor chip (A3) and the P-type semiconductor between the two metal plates. A water cooler using a thermoelectric cold / hot element, characterized in that it comprises a thermoelectric cold / hot element (A ′) having a structure in which chips A4 are arranged in a sandwich form.