KR101362581B1 - Water purifier - Google Patents

Abstract

The present invention relates to a water purifier. The water purifier according to one aspect of the present invention includes: a filtration unit for filtering water; A storage part for storing the filtered water in the filtration part; Separating means for dividing the space of the storage unit into a plurality of spaces; And an outer heat insulating part surrounding the storage part to insulate the storage part from the outside, wherein a thickness of the outer heat insulating part surrounding the upper side of the storage part and an outer heat insulating part surrounding the lower side of the storage part are formed differently.

Description

Water purifier

The present specification relates to a water purifier.

Generally, water purifier refers to a device that filters impurities by physical / chemical methods to remove impurities, and removes impurities contained in raw water through a filter, and stores the purified water generated in the storage tank and supplies them to users. It is configured to.

To this end, the reservoir is supplied to the stored purified water (cold water) divided into cold water tank and hot water tank, the purified water supplied to the cold water tank and hot water tank is respectively cooled or heated to the water of the temperature selected by the user It is comprised so that it may be withdrawn through this take-out part.

On the other hand, in recent years, due to the advantages of material cost reduction and structure configuration, the water purifier of an integrated storage tank for dividing one storage space into a cold water tank and a purified water tank using a separating means has been developed and commercialized.

That is, the separating means blocks the heat transfer between the purified water and the cold water in the water storage tank, so that the cold water and the purified water are separately accommodated in one storage space.

On the other hand, the outside of the water storage tank configured as described above is configured to surround the entire outer surface of the water storage tank, or is provided with a heat insulating member configured to surround only the outer surface of the cold water tank to maintain the temperature of the cold water.

However, in the prior art as described above, when the heat insulating member is configured to cover all the outer surfaces of the water storage tank, the temperature difference between the cold water and the purified water does not become large so that when the hot water is supplied to the hot water tank to generate hot water. There is a problem that the energy consumption for the generation of much increases.

In addition, when the insulation member is formed so as to surround only the outer surface of the cold water tank, dew condensation occurs on the outer surface of the water purification tank having a relatively high temperature by the outside air, that is, dew droplets formed on the outer surface of the water purification tank. Falling down this side can cause problems with the operation of the compressor or other electrical components.

An object of the present invention is to provide a water purifier that can reduce the energy consumption for generating hot water by receiving purified water by reducing the heat transfer of purified water and cold water in the water purifier formed integrally with the water purification tank and the cold water tank.

It is another object of the present invention to provide a water purifier in which dew condensation is prevented on the outer surface of a water purification tank by a temperature difference between a cold water tank and a water purification tank.

Purifier according to one aspect, the filter for filtering water; A storage unit for storing the water filtered by the filtering unit; Separating means for dividing the storage into a purified water tank and a cold water tank; A cooler provided outside the cold water tank to cool the water stored in the cold water tank; And an outer heat insulating part surrounding the water purifying tank, the cold water tank, and the cooler to insulate the storage part from the outside, wherein the cold water tank is located under the water purifying tank, and the cold water tank and the water purifying tank are stepped, and the cooler is the purified water. The cold water bath is in contact with the bottom of the bath and a portion of the outer insulation is located between the bottom of the water tank and the cooler.
According to another aspect of the present invention, a water purifier may include: a filtration unit for filtering water; A storage unit for storing the water filtered by the filtering unit; Separating means for dividing the reservoir into a purified water tank and a cold water tank; A cooler provided outside the cold water tank to cool the water stored in the cold water tank; And an outer heat insulating part surrounding the water purification tank, a cold water tank, and the cooler to insulate the storage part from the outside, wherein the outer heat insulating part includes a cold water tank heat insulating part surrounding the cold water tank, and the cold water tank. And a water purification tank heat insulating part of a different material from the heat insulating part, and the size of the air passage hole of the water purification tank heat insulating part is larger than the size of the air passing hole of the cold water tank heat insulating part, or the number of air passing holes of the water purification tank heat insulating part is the cold water tank. It is larger than the number of air passage holes in the insulation part.
Water purifier according to another aspect, the filter for filtering water; A storage unit for storing the water filtered by the filtering unit; Separating means for dividing the space of the storage unit into a plurality of spaces; An outer heat insulating part surrounding the storage part to insulate the storage part from the outside; And a water level sensor for detecting a water level stored in the storage unit, wherein the water level sensor detects the water level by a change in capacitance caused by direct contact of water, and the water level sensor is configured to detect the water level. It includes a plurality of contact portions that are in contact with each other, and a support portion for supporting the plurality of contact portions.
Water purifier according to another aspect, the filter for filtering water; A storage unit for storing the water filtered by the filtering unit; Separating means for dividing the space of the storage unit into a plurality of spaces; And an external heat insulating part surrounding the storage part to insulate the storage part from the outside, wherein the storage part has a discharge part for discharging water and a filter part for filtering the discharged water when the water stored in the storage part is discharged. It includes more.

The present invention has the advantages of reducing the material cost and the structure configuration is formed integrally with the reservoir. In addition, the cold water tank and the water purification tank are wrapped with heat insulating parts of different materials based on the partition member, and the relatively high temperature water treatment tank is configured to wrap the highly breathable heat insulating parts, which has the advantage of reducing heat transfer between the purified water and cold water.

Therefore, when hot water is generated by supplying purified water, energy consumption consumed to generate hot water is reduced.

In addition, the dew condensation phenomenon is prevented on the outer surface of the water purification tank of a relatively high temperature by the heat insulating portion of the breathable material surrounding the water treatment tank. Therefore, the water droplets generated on the outer surface of the water purification tank fall to prevent the damage of the compressor and various electrical components.

1 is a perspective view of a water purifier according to an embodiment of the present invention.
2 is a view for showing the internal structure of the water purifier according to an embodiment of the present invention.
Figure 3 is a view for showing a reservoir insulating structure of the water purifier according to an embodiment of the present invention.
4 is a perspective view of a separating means according to another embodiment of the present invention.
5 is a plan view of the separating means according to another embodiment of the present invention.
6 is a cross-sectional view of the storage unit is covered with a cover according to another embodiment of the present invention.
7 is a cross-sectional view taken along the line AA of FIG. 6.
8 is a cross-sectional view taken along the line AA of FIG. 6 according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a perspective view of a water purifier according to an embodiment of the present invention, Figure 2 is a view for showing the internal structure of the water purifier according to an embodiment of the present invention.

1 and 2, the water purifier 1 according to an embodiment of the present invention may include a main body 10 having a predetermined space therein and a plurality of covers fastened to the main body 10. Can be.

The main body 10 may include a plurality of frames and plates, and by forming a skeleton of the water purifier 1, the main body 10 may provide a space in which a plurality of configurations provided in the cover or the inside may be installed.

In addition, the upper portion of the main body 10 is configured to allow the interior of the reservoir 100 (or the reservoir) in which the filtered water, which will be described below, to be stored to be exposed to be exposed, thereby cleaning the reservoir 100. . In addition, the upper portion of the main body 10 opened as described above may be shielded by the top cover 80 is fastened.

On the other hand, the front side of the main body 10 is withdrawal portion 40 is connected to the reservoir 100 so that the user can withdraw the water contained in the reservoir 100, water is taken out to the outlet 40 In order to operate the water intake lever 30 is provided.

The take-out part 40 includes a hot water take-out part 42 for taking out hot water and a cold water take-out part 44 for taking out cold water, respectively, by operating the hot water lever 32 and the cold water lever 34. Optionally water discharge can be made.

On the other hand, the withdrawal portion 40 and the water intake lever 30 having the above function may be partially shielded and partially exposed to the outside by the front cover 20 is fastened to the main body 10.

In addition, the front cover 20 is composed of a plurality of buttons so that the user can perform additional functions such as cold water temperature and hot water temperature, cold water or hot water of the water purifier 1 according to the present invention, as well as power saving operation. The operation unit 50 may be further provided.

Here, the operation unit 50 may be configured in a touch operation method.

On the other hand, the operation signal of the operation unit 50 is transmitted to the control unit 220 provided in the front cover 20.

The control unit 220 is composed of a PC and a plurality of electrical components to receive the operating signal of the operation unit 50, via the compressor 70, the condenser 60 and the evaporator 300 (see Fig. 3) By controlling the circulation state of the refrigerant to control the cold water temperature, or although not shown, by controlling the operation of the heater for heating the hot water tank 200 can be controlled to the hot water temperature.

In addition, although not shown, a filtration unit for filtering water may be provided inside the main body 10.

In addition, the control unit 220 is connected to a plurality of sensors to detect the contamination state of the filter constituting the filter unit to notify whether or not to replace the filter, or to detect the water level of the reservoir 100 to supply and block the raw water, etc. It is configured to control.

On the other hand, in the water purifier 1 according to the present invention, the water tank 100 is formed of an aluminum material, and is molded so that the volume of the upper and lower portions has a difference. In addition, the reservoir 100 formed as described above is further provided with a heat insulating part for maintaining the temperature.

Hereinafter, with reference to the drawings will be described in more detail the shape and heat insulation structure of the water purifier 1 according to the present invention.

3 is a view for showing the reservoir structure of the water purifier according to an embodiment of the present invention.

Referring to FIG. 3, the water reservoir 100 of the water purifier 1 according to the present invention is formed in a different size or shape of the lower part and the upper part so as to have the largest volume at the upper part of the main body 10.

In addition, the water storage tank 100 formed as described above is used as a water purification tank 120 (also referred to as a first water storage tank) in which a large amount of purified water is accommodated in the upper portion, and a relatively small amount of purified water is accommodated in the lower portion. It is cooled by the evaporator 300 and used as a cold water tank 140 (also referred to as a second water tank).

To this end, separation means 330 is provided inside the reservoir 100 to divide the inner space into upper and lower portions. One or more holes are formed in the separating means 330 so that the purified water of the water purification tank 120 moves to the cold water tank 140 through the holes.

In detail, the purified water introduced into the reservoir 100 fills the lower portion of the reservoir 100, that is, the cold water tank 140, through the hole formed in the separating means 330, and the cold water tank 140 is filled. After that, the water purification tank 120 is filled.

Therefore, the separating means 330 minimizes heat transfer between cold water and purified water by preventing cold water and purified water from contacting other than the hole.

In addition, an evaporator 300 for cooling the cold water tank 140 (consisting of a coolant tube through which a coolant flows) is provided below the separating means 330, and the outside of the cold water tank 140 and the water purification tank ( Outside of the 120 is provided with an external insulation.

In detail, the external heat insulating part includes a cold water tank heat insulating part 310 surrounding the outside of the cold water tank 140 and a water purification tank heat insulating part 320 surrounding the outside of the water purification tank 120.

The thickness of the water tank thermal insulation unit 320 surrounding the upper side of the water tank 100 is thinner than the thickness of the cold water tank thermal insulation unit 310 surrounding the lower side of the water tank 100. In another aspect, the outer heat insulating portion (for example, a water purification tank heat insulating portion) positioned above the separating means 330 based on the separating means 330 is located outside the separating means 330. It is thinner than the thickness of the insulation (eg cold water tank insulation).

The cold water tank insulation unit 310 is formed of foamed styrofoam having excellent thermal insulation performance to surround the cold water tank 140 and the evaporator 300. On the contrary, the water purification tank thermal insulation unit 320 surrounding the water purification tank 120 is formed of a material having excellent breathability.

This is to allow the purified water contained in the purified water tank 120 to be supplied to the hot water tank 200 while maintaining a higher temperature, thereby reducing the cold air from the cold water tank 140 being transferred to the purified water tank 120. In order to be able to contact the fresh water tank 120 with the outside air.

To this end, the water tank insulation unit 320 has a larger number of air passage holes than the number of air passage holes formed in the cold water tank insulation unit 310 or the air passages formed in the cold water tank insulation unit 310. The size of the air passage hole may be larger than that of the hole. Therefore, in the present embodiment, the cold water tank insulation unit 310 is formed of the above-described foamed styrofoam to surround the cold water tank 140, and the water purification tank insulation unit 320 is formed of polyurethane foam having excellent breathability. 120) wrap the sides.

Therefore, the outer surface of the cold water tank 140 is blocked by the outside air by the cold water tank heat insulating portion 310 can effectively maintain the temperature of the cold water, while the outer surface of the water purification tank 120 is a water purification tank of a breathable material By contacting the outside air by the heat insulating part 320, it is possible to store the purified water at a relatively high temperature.

In addition, the water purification unit heat insulating part 320 prevents dew condensation from occurring on the outer surface of the water purification tank 120, thereby preventing water droplets from falling into the compressor 70 or other electrical components.

In addition, the cold water tank insulation unit 310 is provided to surround all the evaporator 300 as well as the water purification tank 120 to block the cold air of the evaporator 300 is directly transmitted. That is, the cold water tank 140 is located below the water purification tank 120, and the cold water tank 140 and the water purification tank 120 are stepped. The evaporator 300 (or cooler) contacts the cold water tank 140 at a position spaced apart from the bottom 121 of the water purification tank 120, and the external heat insulating part (specifically, a cold water tank heat insulating part). A portion 312 is also located between the bottom 121 of the water treatment tank 120 and the evaporator 300.

Therefore, the cold air generated in the evaporator 300 is not directly transmitted to the water purification tank 120, so that heat transfer between purified water and cold water contained therein is further reduced.

On the other hand, the hot water tank 200 that receives the purified water from the purified water tank 120 to generate hot water due to the structure as described above receives a purified water of a relatively high temperature is reduced energy consumed for the generation of hot water. .

Figure 4 is a perspective view of the separating means according to another embodiment of the present invention, Figure 5 is a plan view of the separating means according to another embodiment of the present invention, Figure 6 is a storage unit according to another embodiment of the present invention covered with a cover It is a cross section of the condition.

This embodiment is the same as the previous embodiment in other parts, but characterized in that there is a difference in the separation means. Therefore, only the characteristic parts of the present embodiment will be described below. In addition, in FIG. 6, it is shown that the external heat insulating part described in FIG. 3 is removed, and the content of the external heat insulating part is equally applied to the present embodiment.

4 to 6, the separating means 500 according to the present embodiment may divide the internal space of the storage unit 150 (or the reservoir) into a plurality of spaces. That is, the separating means 500 serves to partition the purified water tank 152 and the cold water tank 154. An open upper side of the storage unit 150 may have a cover 156 seated thereon such that the cover 156 may cover the storage unit 150.

The separating means 500 may be formed of a stainless material or a metal material so as not to rise by buoyancy by its own load without a separate fixing means. Of course, the storage unit 150 may also be formed of a stainless steel material or a metal material to improve hygiene and ease of cleaning.

The separating means 500 is coupled to the first member 510 and the first member 510 in contact with the water of the purified water tank 152 (or the first reservoir tank), and the cold water tank 154 (or And a second member 520 in contact with the water of the second reservoir.

In the central portion of the first member 510 is formed a first hole 513 through which water in the water purification tank 152 passes. The upper surface 511 of the first member 510 is inclined downward from the outside toward the first hole 513. That is, when viewed as a whole of the separating means 500, the upper surface of the separating means 500 is inclined downward toward the first hole 513 from the outside. Accordingly, the water stored in the purified water tank 152 may easily flow into the cold water tank 154 through the first hole 513.

The side surface 521 of the second member 520 includes one or more contacts 522 for contacting the inner surface of the storage unit 150. The contact part 522 protrudes from the side surface 521 of the second member 520. In the present exemplary embodiment, a part of the side surface 521 of the second member 520 contacts the inner surface of the storage unit 150 by the contact portion 522, so that the side surface 521 may be referred to as a contact surface.

In FIG. 4, for example, a plurality of contact parts 522 are formed on the side surface 521 of the second member 520. When the plurality of contact portions 522 are formed in the second member 520, the plurality of contact portions 522 may be spaced apart along the circumference of the second member 520.

The contact part 522 may be in contact with a boundary between the water purification tank 152 and the cold water tank 154. The boundary portion of the water purification tank 152 and the cold water tank 154 may be rounded. A portion of the side surface 521 of the second member 520 other than a portion where the contact portion 522 is formed constitutes a non-contact portion 523 which is in non-contact with the storage 150.

As another example, the contact part 522 may be recessed in the side surface of the second member 520. In addition, a protrusion part inserted into the contact part 522 may be formed on an inner surface of the storage part 150. As such, even when the protrusion is inserted into the contact portion 522, the non-contact portion may exist in the second member 520 when the protrusion length of the protrusion is larger than the depth of depression of the contact portion 522.

In the present embodiment, the cold water tank 154 is the water of the water purification tank 152 between the non-contact portion 523 and the inner surface of the storage portion 150 by the non-contact portion 523 of the second member 520. A first flow path P1 that can flow in the) may be formed. At this time, the side of the second member 520 may be formed to be inclined so that the water of the purified water tank smoothly flows into the cold water tank. That is, the side of the second member 520 may be inclined toward the center toward the lower side.

A second hole 524 is formed in the central portion of the second member 520 to allow the water of the water purification tank 152 to pass therethrough. Accordingly, the water of the purified water tank 152 may flow to the cold water tank 154 through the first hole 513 and the second hole 524 of the separation means 500. Accordingly, the first hole 513 and the second hole 524 form a second flow path P2 through which the water of the purified water tank 152 may flow into the cold water tank 154.

The second member 520 may be provided with a depression 525 recessed upward in order to increase the storage capacity of the cold water tank.

An extension part 526 extending in the horizontal direction is provided at an end of the second member 520, and an extension part 526 at the end of the first member 510 for coupling with the second member 520. Coupling portion 512 surrounding the () may be provided. In addition, the first member 510 and the second member 520 are coupled to the first hole 513 of the first member 510 and the second hole 524 of the second member 520. A coupling member 540 may be further provided. The coupling member 540 may couple the first member 510 and the second member 520 in the form of a rivet. As another example, the coupling member does not exist in a separate configuration, and is formed in the first member 510 or the second member 520 to form the first member 510 and the second member 520. Can be combined. As another example, the first member 510 and the second member 520 may be combined by adhesive or welding. In this specification, it is noted that there is no limitation on the manner of coupling the first member and the second member.

In addition, the storage unit 150 has a plurality of spaces in the first member 510 in terms of the overall configuration of the separation means 500 in which the first member 510 and the second member 520 are completed. The partition may be referred to as a partition, and a portion of the second member 520 except the recess 525 may be referred to as an extension. As another example, the separating means 500 is not composed of a combination of a plurality of members, it is also possible that a single member is composed of a partition and an extension extending from the partition. Alternatively, the separating means 500 may include a partition portion extending in the horizontal direction and an extension portion coupled to the partition portion and formed in a ring shape to form a depression for increasing the storage capacity of the cold water tank.

At least one portion of the first member 510 and the second member 520 may be spaced apart from each other when the first member 510 and the second member 520 are coupled to each other. Therefore, the separating means 500 may include a heat insulating layer 530 for insulating between water at different temperatures. In the present embodiment, the heat insulating layer 530 may be an air layer as an example, but the heat insulating layer 530 may be formed by a separate heat insulating material.

Since the heat insulating layer provided in the separating means of the present embodiment allows the cold water tank and the water purification tank to be insulated, there is no problem in the thermal insulation performance even if the thickness of the water tank thermal insulation section is thinner than the thickness of the heat insulation section of the cold water tank.

According to the present embodiment, even if the separating means 500 is formed of a stainless material or a metal material, heat exchange between water at different temperatures is minimized by the heat insulating layer 530 inside the separating means 500.

Meanwhile, a cooler 600 for cooling the water stored in the cold water tank may be provided outside the storage unit 150. In the present embodiment, when the storage unit 150 is formed of a metal material or stainless steel, the thermal conductivity of the storage unit 150 itself increases, so that the cooler may be provided outside the storage unit 150. In this case, since a cooler does not have to be provided inside the storage unit, a decrease in capacity of the storage unit is prevented, and the storage unit is easily cleaned.

The cooler 600 includes, for example, a coolant tube 610 constituting a coolant cycle, and the coolant tube 610 is wound on an outer surface of the storage unit 150, specifically, on an outer surface of the cold water tank 154. Can be.

On the other hand, the bottom of the water purification tank 152 is provided with a first discharge portion 153 for discharging the purified water, the bottom of the cold water tank 154 is provided with a second discharge portion 155 for discharging cold water. do. In addition, each discharge unit 153 and 154 may be provided with a filter unit 550 for filtering the discharged water. 6 illustrates that the filter unit 550 is provided in the second discharge unit 155 as an example.

The filter part 550 includes an insertion part 552 inserted into the discharge parts 153 and 155, and an upper part of the insertion part 552, and one or more holes 556 for water flow. And a filter body 554 formed. Therefore, when the water of the purified water tank or the cold water tank is discharged, foreign matters are filtered out by the hole 556, and the water filtered by the foreign matters causes the filter body 554 and the inserting portion 552 to flow therein. do.

On the other hand, the storage unit 150 may be further provided with a water level sensor 420 for detecting the water level.

FIG. 7 is a cross-sectional view taken along the line A-A of FIG. 6.

Referring to FIG. 7, the water level sensor 420 of the present embodiment includes a plurality of contact parts 431, 432, and 433 contacting water stored in the storage unit 150 (for example, an integer) and the plurality of contact parts 431,. And a support 430 for supporting 432 and 433. The water level sensor 420 of the present embodiment detects the water level by the displacement of the capacitance due to the direct contact with the water.

In detail, the support part 430 may be formed of, for example, stainless steel or metal. In addition, the support part 430 may be coupled to the storage part 150 inside the storage part 150. Of course, a fixing part (not shown) for fixing the position of the support part 430 may be provided at an outer side of the storage part 150 to be coupled to the support part 430.

The plurality of contact parts 431, 432, and 433 are formed to have different lengths. At this time, the length is the vertical length in the storage unit 150. Therefore, the water level in the storage unit may be detected in a plurality of stages by the length difference of the plurality of contact units 431, 432, and 433.

8 is a cross-sectional view taken along the line A-A of FIG. 6 according to another embodiment of the present invention.

This embodiment is the same as the previous embodiment in the other parts, it is characterized in that there is a difference in the water level sensor. Therefore, only the characteristic parts of the embodiment will be described below.

Referring to FIG. 8, the water level sensor 440 according to the present embodiment includes a plurality of contact portions 441, 442, and 443 and a plurality of contact portions 441, which are in contact with water stored in the storage unit 150 (for example, an integer). And support 444 for supporting 442 and 443.

In detail, the plurality of contact portions 441, 442, and 443 are formed to have different lengths. For example, the support part 444 may be formed of a plastic material. Therefore, for hygiene, the support part 444 may be coupled to the storage part 150 from the outside of the storage part 150. The plurality of contact portions 441, 442, and 443 pass through the storage unit 150 and are positioned in the storage unit 150. In this case, a sealer 450 for sealing is provided at a portion through which the plurality of contact portions 441, 442, and 443 penetrate through the storage 150. That is, the plurality of contact portions 441, 442, and 443 pass through the sealers 450.

Although the present invention has been described with reference to the above embodiments, various modifications may be made to these embodiments, and these modifications are also included in the scope of the present invention.

100: water tank 120: water tank
140: cold water tank 330: separation means

Claims (18)

A filtration unit for filtering water;
A storage unit for storing the water filtered by the filtering unit;
Separating means for dividing the storage into a purified water tank and a cold water tank;
A cooler provided outside the cold water tank to cool the water stored in the cold water tank; And
An external heat insulating part surrounding the water purification tank, the cold water tank, and the cooler to insulate the storage part from the outside,
The cold water tank is located below the water purification tank, the cold water tank and the water purification tank is stepped,
The cooler contacts the cold water tank at a position spaced apart from the bottom of the water purification tank,
A portion of the external heat insulation is located between the bottom of the water tank and the cooler. The method of claim 1,
The separating means is a water purifier formed of stainless steel or metal. The method of claim 1,
The separating means is a water purifier including a heat insulating layer for insulating between water having different temperatures stored in each of the cold water and purified water compartment partitioned in the storage. The method of claim 1,
The water purifier is formed in the separating means is a hole for flowing the water of the purified water tank to the cold water tank. The method of claim 1,
The separating means includes a contact portion for contacting the inner surface of the reservoir, wherein the contact portion protrudes from the separating means or is recessed in the separating means. The method of claim 1,
The water purifier, characterized in that the thickness of the outer heat insulating portion located above the separating means based on the separating means is thinner than the thickness of the outer heat insulating portion located below the separating means. delete delete The method of claim 1,
The storage unit is formed of stainless steel or metal,
The cooler is a coolant tube through which a coolant flows, and the coolant tube is wound around the outer surface of the cold water tank. A filtration unit for filtering water;
A storage unit for storing the water filtered by the filtering unit;
Separating means for dividing the reservoir into a purified water tank and a cold water tank;
A cooler provided outside the cold water tank to cool the water stored in the cold water tank; And
An external heat insulating part surrounding the water purification tank, the cold water tank, and the cooler to insulate the storage part from the outside,
The external heat insulating part, a cold water tank heat insulating part surrounding the cold water tank, and the water purification tank, and includes a water tank heat insulating part of a different material from the cold water tank heat insulating part,
The size of the air passage hole of the water tank insulation portion is larger than the size of the air passage hole of the cold water tank insulation portion,
The number of air passage holes of the water purification tank insulation unit is greater than the number of air passage holes of the cold water tank insulation unit. 11. The method of claim 10,
The cold water tank heat insulating part is a foamed styrofoam, and the water purification tank heat insulating part is a breathable polyurethane foam. The method of claim 11,
The thickness of the cold water tank heat insulating portion is a water purifier thicker than the thickness of the water tank heat insulating portion. delete A filtration unit for filtering water;
A storage unit for storing the water filtered by the filtering unit;
Separating means for dividing the space of the storage unit into a plurality of spaces;
An outer heat insulating part surrounding the storage part to insulate the storage part from the outside; And
It includes a water level sensor for detecting the water level of the water stored in the storage unit,
The water level sensor detects the water level by the change in capacitance caused by the direct contact of water,
The water level sensor is in contact with water stored in the storage unit, a water purifier including a plurality of contact portions having different lengths, and a support for supporting the plurality of contact portions. 15. The method of claim 14,
The support unit is formed of a plastic material, coupled to the storage unit from the outside of the storage unit, the plurality of contact parts are located in the storage unit through the storage unit. 15. The method of claim 14,
The support unit is formed of a stainless steel material or a metal material, the water purifier coupled to the storage unit from the inside of the storage unit. A filtration unit for filtering water;
A storage unit for storing the water filtered by the filtering unit;
Separating means for dividing the space of the storage unit into a plurality of spaces; And
An outer heat insulating part surrounding the storage part to insulate the storage part from the outside,
The storage unit and the discharge unit for discharging water,
Water purifier further comprises a filter for filtering the discharged water when the water stored in the storage unit is discharged. The method of claim 17,
The filter unit includes a water purifier including an insertion unit inserted into the discharge unit and a filter body in which one or more holes for water flow are formed.

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