KR20150125396A - Purifier for thermoelectric module - Google Patents

Abstract

The present invention relates to a water purifier having a thermoelectric module applied thereto. The water purifier having a thermoelectric module applied thereto according to the present invention comprises a cool water unit for cooling water fed from a purification water storing tank. The cool water unit includes: a cool water tank for storing cool water; a heat transferring member for sealing an opened front surface of the cool water tank; a heat conduction member formed on a rear surface of the heat transferring member; a thermoelectric module for conducting coldness and heat through the heat transferring member and the heat conduction member, and cooling water stored in the cool water tank; a space block formed between a heat absorption surface of the thermoelectric module and the heat transferring member, and improving a heat transfer area; a heat sink formed on a heat surface of the thermoelectric module, and radiating heat of the thermoelectric module; a cooling fan formed on a surface of the heat sink and radiating heat of the heat sink; and a coupling member having a hanging projection supported on a lower end of the thermoelectric member, and having a spiral formed in the upper end to be coupled through a bolt by penetrating the heat transferring member, the space block, the thermoelectric module, and the heat sink, wherein the upper and lower ends are freely rotated. According to the present invention, water in a cool water tank is basically cooled by using a thermoelectric module, so miniaturization and lightening are possible and noise and vibration rarely occur. Even when a partial coupling degree of a coupling member is canceled, a heat conduction member and a thermoelectric module can be separated, so time can be reduced during maintenance of a structure.

Description

{PURIFIER FOR THERMOELECTRIC MODULE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water purifier to which a thermoelectric module is applied, and more particularly to a water purifier to which a thermoelectric module for applying heat to a water by applying power is applied.

Currently widely used water purifier filters raw water such as water or natural water by using a plurality of filters and then provides drinking water that can be immediately drank or stores purified drinking water in a water storage tank and then separately And has a basic function of providing cold or warm water. The water purifier is equipped with a number of filters to remove the harmful components to the human body, including smell in the raw water, and to sterilize bacteria that cause water-borne diseases.

That is, a typical water purifier includes a sediment filter that causes raw water to sequentially pass through to form an integer, a free carbon filter that performs filtration by adsorption by micropores of the carbon block, a plurality of micropores distributed on the membrane surface A UV hollow fiber membrane filter, a reverse osmosis membrane filter, a post carbon filter, and an ultraviolet sterilization filter, which are equipped with a UV hollow fiber membrane filter material, are selectively applied to remove contaminants.

Such a water purifier is generally divided into a low water type water purifier having a water tank therein and a direct water purifier having no water tank, and a counter top type, a desk top type, , Under-sink type, and the like.

In addition, various methods are used for the cooling device employed in the water purifier, but in consideration of miniaturization of volume, vibration and noise reduction, and design aspects, recently, a cooling device using a thermoelectric module has been introduced. Such a thermo electric module has the advantage of solving the problems of the conventional compressor method by applying the principle that one side is cooled and the other side is heated when power is supplied.

A technology related to a water purifier to which such a thermoelectric module is applied has been proposed in Patent Registration No. 0844529 and Patent Publication No. 2009-0019615.

Hereinafter, a method of preventing heat backflow of a water purifier including a thermal storage tank, a water purifier and a water purifier disclosed in Patent Registration No. 0844529 and Patent Publication No. 2009-0019615 will be briefly described below.

1 is a view schematically showing a water purifier in Patent Registration No. 0844529 (hereinafter referred to as "Prior Art 1"). As shown in FIG. 1, the water purifier of Prior Art 1 includes a filter assembly 130 for purifying water to be purified water. A purified water tank 120 through which a flow of purified water flows in the filter assembly 130; A storage tank (150) provided in surface contact with the purified water tank (120) to supply cool water stored therein to a purified water tank; And a cooling device (140) in surface contact with the thermal storage tank (150) to cool the thermal storage tank (140).

The cooling unit 140 includes a heat transfer unit 141, a heat sink 142 and a cooling fan 143 to cool the inside of the cooling case 110. The heat transfer part 141 discharges the heat in the cooling case 110 to the outside. As the heat transfer part 141, a peltier element can be used. When power is applied to the heat transfer portion 141 which is the Peltier element, one side of the heat transfer portion 141 is cooled by the movement of electrons on the P-type semiconductor and the N-type semiconductor constituting the heat transfer portion 141, Side is heated. When the surface to be cooled of the heat transfer part 141 is directed to the inside of the cooling case 110, the heat inside the cooling case 110 is discharged to the outside by the heat transfer part 141, ) Is cooled. The heat dissipation plate 142 is disposed on the heating surface of the heat transfer part 141 and emits heat generated in the Peltier element to the outside. By this heat sink 142, the cooling device 140 can be air-cooled.

However, in the water purifier according to the prior art 1, when the maintenance of the water purifier is required, the cooling device must be separated from the cold water case. Since most of them are fastened with the usual bolts, Improvement of the structure is required.

FIG. 2 is a schematic block diagram of a water purifier in Patent Publication No. 2009-0019615 (hereinafter referred to as "Prior Art 2"). As shown in FIG. 2, the water purifier of the prior art 2 includes a cold water tank 110 in which water is supplied to a water supply source and water to be cooled is stored; A thermoelectric element (120) installed to face the cold water tank (110) and cooling water stored in the cold water tank (110); A heat sink (130) installed to face the thermoelectric element (120) in a direction opposite to the direction facing the cold water tank (110) and dissipating heat generated from the thermoelectric element (120); And a heat dissipating unit 130 installed between the thermoelectric element 120 and the heat sink 130 to transmit heat generated from the thermoelectric element 120 to the heat sink 130 when the thermoelectric element 120 operates, (150) that operates to insulate the thermoelectric element (120) and the heat sink (130) when the heat sink (120) is not operated.

However, in the water purifier according to the prior art 2, when the maintenance of the water purifier is required, the cooling member, the thermoelectric element, and the heat sink must be separated from each other in the cold water tank. Most of them are fastened with a common bolt, It is required to improve the fastening structure.

KR 0844529 B1 KR 2013-0011562 A

An object of the present invention is to provide a cooling device for cooling a water in a cold water tank by cooling the water in a cold water tank by using a thermoelectric module to enable miniaturization and lightweight construction and substantially no noise and vibration, The present invention provides a water purifier including a thermoelectric module that can shorten the time required for maintenance of components.

In order to achieve the above object, the present invention provides a water purifier for purifying water, wherein the water purifier includes a cold water unit for cooling water flowing in a purified water storage tank, A cold water tank for storing the cold water; A heat transfer member sealing the opened front face of the cold water tank; A heat conduction member provided on a back surface of the heat transfer member; A thermoelectric module for cooling the water stored in the cold water tank while the cold heat is conducted through the heat transfer member and the heat conduction member; A space block provided between the heat absorbing surface of the thermoelectric module and the heat transfer member to improve a heat transfer area; A heat sink installed on a heat generating surface of the thermoelectric module to dissipate heat of the thermoelectric module; A cooling fan installed on a surface of the heat sink to dissipate heat of the heat sink; And an upper end is formed with a spiral so as to be bolted through the heat transfer member, the space block, the thermoelectric module, and the heat sink, and the upper and lower ends of the thermoelectric module are free And a thermoelectric module including a rotating fastening member is applied.

Further, in the present invention, the fastening member may be formed with a projection on the lower end peripheral surface so as to be in surface contact with the outer side wall of the heat conductive member.

Further, in the present invention, the fastening member is provided on the opposite outer wall surface of the thermally conductive member, and the fastening protrusion is formed at the lower end of the fastening member, so that the fastening protrusion can be connected by the connecting member.

In addition, the heat conduction member of the present invention may be provided with a support member that stands upright to support the water guide pipe located inside the cold water tank.

Further, in the present invention, the heat transfer member and the cold water tank may be provided to surround the heat insulating material.

According to the present invention, the water in the cold water tank is basically cooled by using the thermoelectric module, thereby making it possible to make the thermoelectric module and the thermoelectric module separate from each other even if the degree of tightening of the fastening member is partially released. It is possible to shorten the maintenance time of the components.

1 is a schematic view of a water purifier according to the prior art 1;
2 is a schematic configuration diagram of a water purifier according to the prior art 2. Fig.
3 is a side cross-sectional view illustrating a water purifier to which a thermoelectric module according to an embodiment of the present invention is applied.
FIG. 4 and FIG. 5 are schematic views showing a state in which a neighboring fastening member is bound to a connecting member or a heat conductive member in a water purifier to which a thermoelectric module according to an embodiment of the present invention is applied.
6 is a side cross-sectional view illustrating a water purifier to which a thermoelectric module according to another embodiment of the present invention is applied.
7 and 8 are schematic views showing a state in which a neighboring fastening member is fastened to a connecting member or a heat conductive member in a water purifier to which a thermoelectric module according to another embodiment of the present invention is applied.
9 is an exploded side cross-sectional view illustrating a water purifier to which a thermoelectric module according to another embodiment of the present invention is applied.
10 is a side cross-sectional view illustrating a water purifier to which a thermoelectric module according to another embodiment of the present invention is applied.

The terms or words used in the present specification and claims are intended to mean that the inventive concept of the present invention is in accordance with the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain its invention in the best way Should be interpreted as a concept.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, Is provided to fully inform the user.

3 is a sectional side view of a water purifier according to an embodiment of the present invention. In FIGS. 4 and 5, a water purifier to which a thermoelectric module according to an embodiment of the present invention is connected, Member or a heat conductive member is shown schematically.

According to these drawings, a water purifier to which a thermoelectric module according to an embodiment of the present invention is applied includes a cold water unit 100 provided inside a water purifier to cool water introduced from a purified water storage tank.

Here, the structure of the water purifier provided with the cold water unit is not shown in the figure, but includes a body having an internal space and forming an external shape of the water purifier, a plurality of water purifiers installed in the internal space of the body, A hot water tank in which water heated or cooled through the hot water unit and the cold water unit is stored by receiving purified water of the purified water storage tank and a cold water tank And a plurality of water intake corks connected to the hot water tank and the cold water tank, respectively, for discharging hot water or cold water to the outside.

The cold water unit 100 includes a cold water tank 110, a heat transfer member 120, a heat conduction member 130, a space block 140, a thermoelectric module 150, a first heat insulator 160, a second heat insulator 162 A heat sink 170, an outer case 172, a cooling fan 180, a fastening member 190, and a controller.

The cold water tank 110 is a space in which cold water produced by cooling the purified water supplied from the purified water storage tank by the thermoelectric module 150 described later is stored. Particularly, the cold water tank 110 is made of a material having excellent thermal conductivity such as aluminum, copper, and stainless steel in order to achieve smooth cooling up to a target temperature.

The cold water tank 110 is formed with a water outlet formed to supply water to the user through the water guide pipe (not shown in the drawings) and a water inlet through which the water is received by the water inlet pipe (not shown) .

The cold water tank 110 is equipped with a temperature sensor (not shown) for measuring the temperature of the water contained in the cold water tank 110, and the water contained in the cold water tank 110 is discharged to the outside A drain port is formed on the bottom surface of the cold water tank 110 to drain the water.

The heat transfer member 120 is formed in a plate shape so as to seal the opened front face of the cold water tank 110 and to increase the conductivity of the thermoelectric module 140 adhered to the space block 150, .

Further, a hermetic sealing member such as an O-ring (not shown in the figure) is interposed to seal the joint surface between the heat transfer member 120 and the cold water tank 110.

The heat conduction member 130 is provided on the back surface of the heat transfer member 120 to provide cooling water (cold heat) from the space block 150 that contacts the heat absorbing surface of the thermoelectric module 140 to water contained in the cold water tank 110 And may be formed of a metal material having high thermal conductivity.

At this time, the heat conduction member 130 is made of stainless steel which is strong against corrosion and does not pollute water. Further, the heat conduction member 130 is formed such that both ends of the plate-shaped member are bent twice inward to form a rectangular cross-sectional shape.

The heat conductive member 130 is provided with a support member 114 to stand upright to support the water guide pipe 112 located inside the cold water tank 110. That is, the support member 114 is formed in an upright plate shape and has an opening through which one end of the heat conductive member 130 is supported to support the outflow guide pipe 112. The other end of the support member 114 passes through the bottom cutout portion of the heat conductive member 130, And is supported on the ceiling scene of.

The space block 140 is provided between the heat absorbing surface of the thermoelectric module 140 and the surface of the heat transfer member 120 to improve the heat transfer area during heat absorption through the heat absorbing surface of the thermoelectric module 140. At this time, aluminum or the like is used as the space block 140, but copper, stainless steel, brass or the like can be used.

As a result, the space block 140 can increase the heat transfer area in use, thereby reducing the temperature gradient. In particular, the spacing between the heat sink 170 and the heat transfer member 120, which is attached to the heat generating surface of the thermoelectric module 150, By artificially freeing it, heat can be prevented from transferring from the relatively hot heat sink 170 to the cold heat transfer member 120.

The thermoelectric module 150 is provided on the surface of the space block 140 to cool the water stored in the cold water tank 110 while the cold heat is conducted through the heat transfer member 120 and the heat conduction member 130 when the power is applied.

The first thermal insulation material 160 has a through hole at its center so that the thermoelectric module 150 can be positioned therein and a second thermal insulation material 160 surrounding the cold water tank 110 in a state of being closely attached to the surface of the heat transfer member 120 200 for sealing the open front face.

That is, the first heat insulator 160 intervenes between the heat sink 170 and the heat transfer member 120, which is a cooling object, for the purpose of heat insulation.

Particularly, the first heat insulator 160 is made of plastic such as styrofoam, rubber foam insulation, urethane, etc. by plastic injection or the like, and its shape and material can be changed according to the purpose.

The second thermal insulation material 162 is provided to closely adhere to the first thermal insulation material 160 and to surround the outer surface of the cold water tank 110. Like the first thermal insulation material 160, the second thermal insulation material 162 is made of a material such as styrofoam, rubber foam insulation, urethane, Injection or the like.

The heat sink 170 is in close contact with the heat generating surface of the thermoelectric module 150 to dissipate the heat of the thermoelectric module 150. Usually, an extrusion heat sink is used in many cases. However, Heat pipe embedded type heat sink, pin bond type heat sink, etc. can be used.

The outer case 172 is formed of a material such as metal, synthetic resin or the like, which is formed by covering the second heat insulating material 162 and fixing the inner and outer ends of the first and second heat insulating materials 162 and 162.

The cooling fan 180 is installed on the surface of the heat sink 170 to dissipate the heat of the heat sink 170. In general, although axial fan is used in many cases, if it is possible to supply smooth air necessary for air cooling, It is not affected by the form and manner.

The fastening member 190 is configured to fasten the heat conduction member 130 to the heat transfer member 120, the space block 140, the thermoelectric module 150, and the heat sink 170 so that the heat conduction member 130, The lower end of the heat sink 120 is supported on the opposite corner of the heat transfer member 120 and the space block 140 and the thermoelectric module 150 and the heat sink 170 And a spiral portion 194 formed with a spiral to be fastened with a nut N. The spiral portion 192 and the spiral portion 194 are free to rotate.

The engagement protrusions 192 of the fastening member 190 may be formed in a square pillar shape such that the lower end thereof is in surface contact with the outer wall of the heat conduction member 130, This flat protrusion can be formed.

The coupling protrusions 192 are formed on the opposite outer wall surfaces of the heat conduction member 130. The coupling protrusions 192a are formed at the lower ends of the coupling protrusions 192 so that adjacent coupling protrusions 192a are formed at both ends It is possible to prevent the hooking jaw 192 from being widened through the process of connecting by the connecting member 192b having the holes. (See Fig. 4)

In another embodiment, the end of the fastening member 190 may be bent to be caught by the cut end of the heat conduction member 130, and may be formed in the shape of a latching protrusion 192c. (See Fig. 5)

The controller includes a switching mode power supply (SMPS), which is not shown in the figure but can supply power to the thermoelectric module 150, and can control the operation of the thermoelectric module 150.

Although not shown in the drawing, a water-cooling block connected to the pump may be interposed between the heat generating surface of the thermoelectric module 150 and the heat sink 170. [ When the water-cooled block is provided on the heat-generating surface of the thermoelectric module, the water is supplied to the water-cooled block to be discharged, so that the structure is simple by applying a cooling method by water cooling. And can be configured at a relatively low cost. In addition, when heat is radiated by water cooling, the heat radiating ability is much better than that of the air cooling method, so that the cooling ability of the thermoelectric module can be maximized and the cooling ability of the cold water unit can be greatly improved. Here, the water-cooled block is generally made of aluminum or the like, and when it is continuously used, it may be oxidized and the flow path may be clogged, so that surface treatment such as anodizing is performed. In some cases, stainless steel may be used, and brass and copper may be used. In addition, a thermistor, bimetal, etc. can be attached to the surface of the water-cooling block to control the thermoelectric module, and water can be flowed toward the water-cooling block by confirming the heat radiation state.

Therefore, the water purifier to which the thermoelectric module of the present invention is applied is characterized in that raw water supplied through a water supply pipe passes through a plurality of filters and is subjected to a process such as precipitation, filtration and sterilization to remove heavy metals and other harmful substances contained in the raw water, The water in the purified water storage tank is supplied to the hot water tank and the cold water tank 110, respectively, and is heated and cooled to a predetermined temperature through the hot water unit and the cold water unit 100.

The hot water tank is provided with a water heater for heating the water stored therein, and a cold water unit 100 for cooling the water stored in the cold water tank 110 is installed outside the cold water tank 110, A water intake cock is provided on the outer side of the front part of the water tank and the cold water tank 110 to discharge hot water and cold water, respectively.

At this time, the cold water unit 100 receives the purified water through the outflow guide pipe 112 and is supplied with power to the thermoelectric module 150, so that the heat transfer member 120, which is closely attached to the heat absorbing surface of the thermoelectric module 150, (130) cools the purified water in the cold water tank (110) while exchanging heat.

Particularly, when maintenance of the water purifier is required, when the nut N fastened to the spiral portion 194 of the fastening member 190 is partially separated from the heat sink 170, The heat conductive member 130 can be easily separated from the corner of the heat conductive member 130.

Or if the water purifier needs repairing of the thermoelectric module 150 or the like, the nut N fastened to the spiral portion 194 of the fastening member 190 is completely separated from the heat sink 170, 170), the thermoelectric module 150 can be separated.

6 and 7 are sectional side views of a water purifier according to another embodiment of the present invention. In FIGS. 7 and 8, a water purifier to which a thermoelectric module according to another embodiment of the present invention is connected, Member or a heat conductive member is shown schematically.

According to these drawings, the water purifier to which the thermoelectric module according to another embodiment of the present invention is applied includes a cold water unit 200 provided inside the water purifier for cooling the water introduced from the purified water storage tank.

At this time, the cold water unit 200 includes a cold water tank 210, a heat transfer member 220, a heat conduction member 230, a space block 240, a thermoelectric module 250, a first heat insulator 260, The heat sink 230 and the coupling member 290 are different from each other only in the shape of the heat conductive member 230 and the coupling member 290, The structure and function are the same as those of the above-described embodiment, and a detailed description thereof will be omitted.

The heat conduction member 230 has grooves 232 formed on both side walls so that the engagement protrusions 292 of the fastening member 290 to be described later can be caught.

The fastening member 290 is configured to fasten the heat conduction member 230 to the heat transfer member 220, the space block 240, the thermoelectric module 250, and the heat sink 270. The heat conduction member 230 The upper end of the heat transfer member 220, the space block 240, the thermoelectric module 250, and the heat sink 270 (not shown) are supported by grooves 232 formed on both side walls of the heat transfer member 220, And the spiral portion 292 and the spiral portion 294 are freely rotatable. The spiral portion 294 and the spiral portion 294 are connected to each other by a nut (not shown).

The engaging protrusions 292 are formed on the opposite outer wall surfaces of the heat conductive member 230. The engaging protrusions 292a are formed at the lower ends of the engaging protrusions 292, It is possible to prevent the latching jaw 292 from being opened by a process of connecting the linking member 292b with the hole. (See Fig. 7)

The coupling protrusion 292a may be formed at the lower end of the coupling protrusion 292 so that the coupling protrusion 292a may be connected to the coupling member 292a by a coupling member 292b having holes formed at both ends thereof, 292b are bent so that they can be caught by the cut end, thereby preventing the latching jaw 292 from being opened. (See Fig. 8)

9 is a side cross-sectional view of a water purifier to which a thermoelectric module according to another embodiment of the present invention is applied.

According to this drawing, the water purifier to which the thermoelectric module according to another embodiment of the present invention is applied includes a cold water unit 300 provided inside the water purifier for cooling the water introduced from the purified water storage tank.

At this time, the cold water unit 300 includes a cold water tank 310, a heat transfer member 320, a heat conduction member 330, a space block 340, a thermoelectric module 350, a first heat insulator 360, A heat sink 370, an outer case 372, a cooling fan 380, a fastening nut 390 and a controller, and only the shape of the heat conductive member 330 and the fastening nut 390 is different And the remaining components are the same in structure and function as those in the previous embodiment, so that a detailed description thereof will be omitted.

The heat conduction member 330 has a hole through which the bolt passes so that the bolt can pass through the space block 340 and be fastened to the contact surface with the heat transfer member 320. That is, a hole is formed in the surface of the heat conduction member 330 for each bolt fastening position in order to fasten the heat transfer member 320 to the nut of the fastening nut 390 disposed inside the heat conduction member 330 sequentially.

The fastening nut 390 is disposed inside the heat conductive member 330 and functions to tighten the heat conductive member 330 when the heat conductive member 330 is fixed to the back surface of the heat conductive member 320 through the space block 340, O-rings are provided along the outer peripheries of the spiral holes in order to maintain airtightness with respect to the fastening portions with the bolts. At this time, the coupling nut 390 is formed of a metal, a synthetic resin material, or a synthetic resin material that is formed of a metal only in a spiral portion and surrounds the metal portion.

On the other hand, the heat sink 370 and the thermoelectric module 350 are bolted to the spiral hole of the space block 340, respectively, and the space block 340 is passed through another bolt to pass through the heat conductive member 330 And then fastened with a fastening nut 390, respectively. As a result, the space block 340 is provided with a bolt, a screw hole to be fixed to the heat sink 370 and the thermoelectric module 350, and a screw hole to be fastened to the fastening nut 390 after passing through the heat conductive member 330. [ Many head insertion holes are formed.

FIG. 10 is a side sectional view of a water purifier to which a thermoelectric module according to another embodiment of the present invention is applied.

According to this drawing, the water purifier to which the thermoelectric module according to another embodiment of the present invention is applied includes a cold water unit 300 provided inside the water purifier for cooling the water introduced from the purified water storage tank.

At this time, the cold water unit 300 includes a cold water tank, a heat transfer member 320, a heat conduction member 330, a space block 340, a thermoelectric module 350, a first heat insulator 360, a second heat insulator, The heat sink 370, the thermoelectric module 350, the space block 340, the heat transfer module 350, the cooling fan 380, and the controller are connected to each other by a bolt, as in the previous embodiment. The member 320 and the thermally conductive member 330 are not fastened and fixed to the clamping nut 390 but a glue is formed around the contact surface between the surface of the heat conducting member 320 and the space block 340 And the periphery of the contact surface between the back surface of the heat transfer member 320 and the heat conductive member 330 is glued to each other. Thereafter, the thermoelectric module 350 may be fixed to the space block 340 by using a bolt inserted from the outside of the heat sink 370. Also, the heat sink 370 and the thermoelectric module 350 may be bonded to the space block 340 using glue.

In addition, although not shown in the drawings, the water purifier according to another embodiment of the present invention includes a cold water tank, a heat transfer member, a heat conduction member, a space The heat transfer member includes a block, a thermoelectric module, a first heat insulator, a second heat insulator, a heat sink, an outer case, a cooling fan, and a controller. The heat transfer member is bonded to the surface of the heat transfer member by welding or soldering And the periphery of the contact surface between the back surface of the heat conducting member and the heat conductive member is bonded to each other by welding or soldering. Thereafter, the thermoelectric module may be fixed to the space block using a bolt inserted from the outside of the heat sink. The heat sink and the thermoelectric module may also be bonded to each other by welding or soldering to the space block.

In another embodiment of the present invention, there is provided a bolt having a head fixed to a contact surface of a heat conduction member with a heat transfer member, wherein a spiral portion of the bolt penetrates a hole of a heat sink through a heat conduction member, a space block, .

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the equivalents of the appended claims, as well as the appended claims.

100, 300, 300: cold water unit
110, 210, 310: cold water tank
120, 220, 320: heat transfer member
130, 230, 330: heat conduction member
140, 240, 340: Space block
150, 250, 350: thermoelectric module
160, 260, 360: Primary insulation
162, 362: secondary insulation
170, 270, 370: Heat sink
172, 372: outer case
180, 280, 380: cooling fan
190, 290: fastening member
390: Clamping nut

Claims (5)

A water purifier for purifying water,
The water purifier includes a cold water unit for cooling the water introduced from the purified water storage tank,
The cold water unit includes:
A cold water tank in which cold water is stored;
A heat transfer member sealing the opened front face of the cold water tank;
A heat conduction member provided on a back surface of the heat transfer member;
A thermoelectric module for cooling the water stored in the cold water tank while the cold heat is conducted through the heat transfer member and the heat conduction member;
A space block provided between the heat absorbing surface of the thermoelectric module and the heat transfer member to improve a heat transfer area;
A heat sink installed on a heat generating surface of the thermoelectric module to dissipate heat of the thermoelectric module;
A cooling fan installed on a surface of the heat sink to dissipate heat of the heat sink; And
Wherein a lower end of the heat transfer member is supported by a lower end of the heat transfer member and a spiral is formed through the heat transfer member, the space block, the thermoelectric module, and the heat sink to be fastened by bolts, And a thermoelectric module including a fastening member.
The method according to claim 1,
Wherein the fastening member has a protrusion formed on a lower end outer circumferential surface so as to be in surface contact with an outer wall of the thermally conductive member.
The method according to claim 1,
Wherein the fastening member is provided on an opposing outer wall surface of the thermally conductive member, and a coupling protrusion is formed at a lower end of the coupling member to connect the coupling protrusion to the thermoelectric module.
The method according to claim 1,
Wherein the thermoelectric module is provided with a support member upstanding to support an outflow guide pipe located inside the cold water tank.
The method according to claim 1,
And a thermoelectric module provided to surround the heat transfer member and the cold water tank.

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