CN109419362B

CN109419362B - Drinking water supply device

Info

Publication number: CN109419362B
Application number: CN201710764475.1A
Authority: CN
Inventors: 郑辉东; 任成彬; 闵基洪
Original assignee: Chungho Nais Co Ltd
Current assignee: Chungho Nais Co Ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2021-08-17
Anticipated expiration: 2037-08-30
Also published as: CN109419362A

Abstract

The present invention relates to a drinking water supply device, such as a water purifier having a cooling circulation system, and the drinking water supply device of the present invention includes: the lower part of the cold water tank is used for storing cold water and limiting an ice making chamber, and the ice making chamber is a space which is integrally communicated; an ice making part provided at one side of an upper portion of the ice making chamber and used to make ice; an ice bank provided at a position above and below the cold water storage space of the ice making chamber and storing ice prepared by the ice making part; a carbonated water tank disposed at the other side of the upper part of the ice making chamber, which avoids the side where the ice making part is disposed, and used for storing carbonated water; and a heat insulating material surrounding an outside of the ice making compartment. According to the drinking water supply device of the present invention, not only carbonated water but also cold water or ice can be supplied, so that the size of the device can be reduced, the manufacturing cost can be reduced, and the cooling efficiency can be improved.

Description

Drinking water supply device

Technical Field

The present invention relates to a drinking water supply device, and more particularly, to a drinking water supply device provided with a cooling circulation system to supply at least cold water and carbonated water.

Background

Examples of the drinking water supply device include a water purifier that purifies raw water such as tap water with a filter and supplies the purified raw water to a user, and a hot/cold water heater that supplies drinking water such as mineral water to a user.

As such a drinking water supply device, there are known: a drinking water supply device which prepares ice, cold water and/or hot water by being provided with a cooling circulation system and/or a heater and supplies the ice, the cold water and/or the hot water; or a drinking water supply device having a function of supplying carbonated water in which a carbonic acid gas is dissolved in water.

Since the solubility of the carbonic acid gas increases with a decrease in temperature or an increase in pressure, it is necessary to cool the carbonic acid water tank by a cooling cycle system, and for example, patent document 1 (japanese laid-open patent publication No. 10-2015 0039949) or patent document 2 (japanese laid-open patent publication No. 10-0487816) discloses cooling the cold water tank and the carbonic acid water tank by surrounding the outer peripheral surfaces of the cold water tank and the carbonic acid water tank with a refrigerant conduit (refrigerant flow pipe), i.e., an evaporator, and supplying a refrigerant through the refrigerant conduit.

Further, although not specifically mentioned in the comparative document 1 or 2, the cold water tank and the carbonated water tank, which are cooled by the cooling circulation system, need to be surrounded by a heat insulating material to prevent the outflow of cold air and the occurrence of dew condensation on the surfaces. In the manufacturing process of the drinking water supply device, the heat insulation treatment is not only complicated in operation but also the heat insulating material is a factor of hindering the reduction in size of the device. In particular, in patent document 1, the cold water tank and the carbonated water tank are provided separately from each other, and therefore, additional refrigerant conduits (evaporators) for cooling the cold water tank and the carbonated water tank, respectively, are required, and they are also required to be separately heat-insulated, thereby inevitably increasing the manufacturing cost and increasing the size of the apparatus.

In patent document 2, since the cold water tank and the carbonated water tank are connected to each other and are actually configured as one evaporator, the cold water tank and the carbonated water tank can be entirely insulated at a time, which is slightly advantageous in terms of manufacturing cost and reduction in size of the apparatus as compared with reference 1.

However, in the comparison document 2 in which the cold water tank and the carbonated water tank are sequentially cooled by one evaporator, since the difference in cooling performance is caused by the sequential cooling in this cooling method, when one of the cold water and the carbonated water is intensively consumed, it is difficult to preferentially cool the intensively consumed one. Such a difference in cooling performance becomes more significant in the case where the capacity of the cold water tank or the carbonated water tank becomes large.

More importantly, the water supply devices of both reference 1 and reference 2 do not have the ice making function. If the water supply devices of reference 1 and reference 2 are provided with an ice making function to supply carbonated water, cold water, or ice, additional heat insulation treatment for the ice making unit and the ice bank is required, and therefore it is more difficult to reduce the size of the device and the manufacturing cost.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 10-2015-0039949

Patent document 2: granted patent No. 10-0487816

Disclosure of Invention

The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a drinking water supply device capable of supplying not only carbonated water but also cold water or ice, and also capable of achieving a reduction in size of the device, a reduction in manufacturing cost, and an improvement in cooling efficiency.

In order to solve the technical problem, the invention arranges the carbonic acid water tank in the ice making chamber, and carries out heat insulation treatment on the ice making part, the ice storage warehouse, the cold water tank and the carbonic acid water tank at one time.

That is, the drinking water supply apparatus according to the present invention includes: the lower part of the cold water tank is used for storing cold water and limiting an ice making chamber, and the ice making chamber is a space which is integrally communicated; an ice making part provided at one side of an upper portion of the ice making chamber and used to make ice; an ice bank provided at a position above and below the cold water storage space of the ice making chamber and storing ice prepared by the ice making part; a carbonated water tank disposed at the other side of the upper part of the ice making chamber, which avoids the side where the ice making part is disposed, and used for storing carbonated water; and a heat insulating material surrounding an outside of the ice making compartment.

Preferably, the carbonated water tank takes in cold water stored in a lower portion of the ice making chamber and carbonated gas from a carbonated gas bucket, thereby producing carbonated water, and stores the carbonated water.

Further, the drinking water supply device according to the present invention further includes a circulation pump that supplies cold water stored in a lower portion of the ice making chamber to the ice making unit; the ice making part obtains cold water by the circulation pump to make ice.

Further, the drinking water supply apparatus according to the present invention may also have the following structure. Namely, comprising: an evaporator formed in a plurality of fingers and having a refrigerant flowing therein; and a plurality of spray nozzles disposed around the evaporator and spraying cold water supplied by the circulation pump toward the evaporator.

In this case, the drinking water supply apparatus of the present invention may further include a guide mesh obliquely disposed at a lower portion of the ice making part, the guide mesh guiding the ice separated from the ice making part into the ice bank and guiding cold water flowing without being made into ice by the ice making part to a lower portion of the cold water tank.

In addition, a hole is formed in the bottom surface of the ice bank so that water formed by melting ice drops to the cold water tank.

Further, the carbonated water tank is provided therein with a cold water circulation flow path that takes in cold water stored in a lower portion of the ice making chamber and circulates the cold water.

The drinking water supply device may be a water purifier having a filter unit for filtering the obtained raw water so as to supply purified water purified by the filter unit, or a cold/hot water supply device for cooling and/or heating mineral water or raw water to supply ice, cold water, and/or hot water.

According to the drinking water supply device of the present invention, the carbonated water tank is provided in the cold water tank forming the ice making chamber together with the ice making unit and the ice bank, and the ice making unit, the carbonated water tank, the ice bank and the cold water tank are all surrounded by the heat insulating material at a time, so that it is not necessary to additionally perform heat insulating treatment on the carbonated water tank, and not only the manufacturing cost can be reduced, but also the device size can be reduced.

In particular, in the drinking water supply apparatus according to the present invention, since the space in which the carbonated water tank is installed is originally the empty space (dead space), the empty space can be utilized as the installation space of the carbonated water tank, thereby making it possible to utilize the space to the maximum extent.

In addition, since the ice making part is provided inside the ice making chamber, the low temperature can be maintained as a whole, so that the carbonated water tank can still be maintained at the temperature inside the ice making chamber, thereby reducing unnecessary energy consumption and also maximizing cooling efficiency.

Drawings

Fig. 1 is a block diagram showing main components and a flow path connection structure of a drinking water supply device according to an embodiment of the present invention.

Fig. 2 is a perspective view showing the drinking water supply apparatus of fig. 1 with its main components exploded.

Fig. 3 is a perspective view illustrating a state where caps of a clean water tank and a cold water tank are removed from a tank assembly, which is a main component of the drinking water supply apparatus of fig. 1.

Fig. 4 is a sectional view showing a section taken along line a-a of fig. 3 centering on the can assembly in fig. 3.

Fig. 5 is a perspective view showing a main structure of the ice making unit of the can assembly in fig. 3 and 4, as viewed from below.

Fig. 6 is a perspective view showing a guide mesh provided inside the tank assembly of fig. 3 and 4.

Description of the reference numerals

A box body: 100 front cover: 110

And (4) covering: 120 side cover: 130

A rear cover: 140 chassis: 150

A filtering part: 200, pretreatment of the filter: 210

A main treatment filter: 220 post-treatment filter: 230

A carbonic acid gas barrel: 250 can assembly: 300

A water purification tank: 310 cold water tank: 320

An ice storage warehouse: 330 screw rod: 331

A motor: 332 carbonated water tank: 340

A cold water circulation flow path: 342 hot water tank: 350

Guiding the grid: a 360 circulating pump: 370

Ice-making water supply flow path: 371 cooling water supply flow path: 372

Heat insulation material: 380 ice making unit: 400

An evaporator: 410 evaporator fingers: 411

Electric heater (deicing apparatus): 420 water spray nozzle part: 430

A water spray nozzle: 431 compressor: 510

A condenser: 520 capillary tube: 530

A liquid separator: 540 refrigerant lines: 551. 552 of glass fiber

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the terms or words used in the present specification and claims cannot be interpreted as general meanings or dictionary meanings, and should be interpreted as meanings and concepts conforming to the technical idea of the present invention in view of the principle that the inventor can properly define the concept of the terms to describe the invention using the most preferable method. Therefore, the embodiment described in the present specification and the structure shown in the drawings are only one preferred embodiment of the present invention and do not represent the entire technical idea of the present invention, and therefore it should be understood that various equivalents and modifications capable of replacing these may be provided at the time of applying the present invention.

In the drawings, the dimensions of each component or a specific portion formed by the component are enlarged, omitted, or schematically illustrated for convenience and clarity of description. Therefore, the sizes of the respective components do not reflect the actual sizes. In a case where it is considered that a detailed description of related well-known functions or constructions will inevitably obscure the gist of the present invention, such description will be omitted.

In the following embodiments, although the drinking water supply apparatus is illustrated and described as a water purifier having a filter unit for filtering the obtained raw water, the water purifier can supply water purified by the filter unit.

Fig. 1 is a block diagram showing a main part and a flow path connection structure of a drinking water supply device according to an embodiment of the present invention, fig. 2 is a perspective view showing the drinking water supply device in fig. 1 after the main part is disassembled, fig. 3 is a perspective view showing a state where caps of a clean water tank and a cold water tank are removed from a tank assembly which is the main part of the drinking water supply device in fig. 1, fig. 4 is a sectional view showing a section taken along a line a-a of fig. 3 with the tank assembly in fig. 3 as a center, fig. 5 is a perspective view showing a main structure of an ice making part of the tank assembly in fig. 3 and 4 as viewed from below, and fig. 6 is a perspective view showing a guide mesh provided inside the tank assembly in fig. 3 and 4.

Referring to fig. 1 and 2, the water purifier (drinking water supply apparatus) according to the present embodiment includes a housing 100, a filter unit 200 mounted inside the housing 100, a tank assembly 300, a carbonated gas tank 250 for preparing carbonated water, a cooling cycle system, and the like. As will be described in detail later, the tank assembly 300 includes a pure water tank 310 for storing pure water (normal temperature water), a cold water tank 320 for storing cooled pure water, an ice making unit 400 for making ice, an ice bank 330 for storing ice, a carbonated water tank 340 for preparing carbonated water in which carbonated gas is dissolved, and storing the carbonated water, and the like.

First, the function and operation of the water purifier of the present embodiment having the above-described structure will be described with reference to fig. 1.

Raw water such as tap water flowing in through the raw water inlet 11 passes through the leakage prevention water valve 12, and then passes through the pre-treatment filter 210, the main treatment filter 220, and the post-treatment filter 230 in order to remove impurities, foreign substances, bacteria, and the like, thereby forming clean purified water, and the purified water is stored in the water purification tank 310, wherein the leakage prevention water valve 12 is provided on the bottom surface of the bottom frame 150 constituting a part of the case 100, and cuts off the inflow of raw water when a predetermined amount or more of water is accumulated on the bottom surface of the bottom frame 150.

Here, the pre-treatment filter 210 may be composed of a precipitation filter (segment filter), a pre-carbon filter (pre-carbon filter), or a combination thereof, the main treatment filter 220 may be composed of a reverse osmosis filter (reverse osmosis filter) or a UF hollow fiber filter, and the post-treatment filter 230 may be composed of a post-carbon filter. When the main treatment filter 220 is formed of a reverse osmosis filter, water concentrated with impurities is discharged to the outside of the water purifier through the waste water discharge path 13 and the water discharge port 14 during the filtration process. The filter unit 200 may further include a sterilization filter as a part of the post-treatment filter 230, or may further include a sterilization module such as an ultraviolet sterilization lamp provided independently of the post-treatment filter.

The purified water stored in the purified water tank 310 may be supplied to the user through the intake port 113 as purified water at normal temperature.

Further, the purified water can be prepared as cold water, ice, and carbonated water when supplied to the cold water tank 320, and can be prepared as hot water when supplied to the hot water tank 350.

Specifically, first, the purified water supplied to the cold water tank 320 is supplied to the ice making unit 400 as ice making water. The ice making part 400 has an evaporator 410 constituting a cooling cycle system to prepare ice from the ice making water supplied from the cold water tank 320. The ice thus prepared is transferred to the ice bank 330 for storage, and may be supplied to the user through the ice outlet 115.

Further, the ice prepared by the ice making part 400 is supplied to the cold water tank 320 and is melted into the water stored in the cold water tank 320, thereby making the water inside the cold water tank 320 into cold water, or the water flowing without being made into ice by the ice making part 400 is circulated to the cold water tank 320 and is stored inside the cold water tank 320 as cold water. The above will be described in detail later.

The cold water stored in the cold water tank 320 may be supplied to a user through the intake port 113 and may also be supplied to the carbonated water tank 340 for preparing carbonated water. That is, the carbonated water tank 340 prepares carbonated water by dissolving carbonated gas taken from the carbonated gas bucket 250 in cold water taken from the cold water tank 320 and stores it. The carbonated water stored in the carbonated water tank 340 can be supplied to a user through the carbonated water intake port 114.

Here, since the solubility of the carbonic acid gas to water increases with a decrease in temperature or an increase in pressure, it is preferable that the carbonic acid water tank is cooled as much as possible to reach a low temperature and compressed as much as possible to reach a high pressure. For this reason, in the present embodiment, cold water stored in the cold water tank 320 is used as carbonated water preparation water, and a cold water circulation flow path 342 is provided for circulating the cold water stored in the cold water tank 320 to the inside of the carbonated water tank 340 as a cold source. Further, since the carbonated gas is taken from the high-pressure carbonated gas barrel 250, the inside of the carbonated water tank 340 can naturally maintain a high pressure compared to other tanks, and therefore, when cold water is supplied from the cold water tank 320 to the carbonated water tank as carbonated water preparation water, the pump 15 may be used.

The clean water (normal temperature water) supplied from the clean water tank 310 to the hot water tank 350 may be heated by a heater (not shown) provided inside or outside the hot water tank 350, and may be supplied to the user through the intake port 113.

The respective tanks may be provided with a drain flow path as necessary. That is, when the

tanks

310, 320, 340, 350 are cleaned or sterilized or when the water purifier is not used for a long period of time, it is necessary to discharge the water inside the

tanks

310, 320, 340, 350, and to this end, the

drain flow paths

16, 17, 18 are connected to the bottom surfaces of the cold water tank 320, the carbonated water tank 340, and the hot water tank 350. The drain passages 16 and 17 of the cold water tank 320 and the carbonated water tank 340 are connected to the drain port 14 together with the waste water drain passage 13, and the drain passage 18 of the hot water tank 350 is connected to the hot water drain port 19, so that water in the respective tanks can be discharged to the outside of the water purifier. In fig. 1, the clean water tank 310 is not additionally provided with a drain flow path because water of the clean water tank 310 is always drained via the cold water tank 320. However, it is needless to say that the water purification tank 310 may be provided with a separate drainage passage.

Further, among the above-described tanks, particularly, the carbonated water tank 340 and the hot water tank 350 which are relatively at high pressure or high temperature or are easily filled with gas may be provided with air flow paths. If the internal pressure rises above a desired pressure due to the filling of the gas (air) in the carbonated water tank 340 or the hot water pipe 350, a sudden spray may burn a user or splash around the water purifier when water is taken through the

water intake ports

113, 114, and therefore, the gas (air) filled in the upper portion of these tanks is preferably appropriately discharged. For this, the

air flow paths

21 and 22 are provided at the upper portions of the

respective tanks

340 and 350 and connected to the upper portion of the purified water tank 310 so that the gas (air) discharged through the

air flow paths

21 and 22 can be discharged through the upper space of the purified water tank 310.

The

tanks

310, 320, 340, 350 and the ice bank 330 may further include a water level sensor or an ice sensor for detecting the amount of stored water or ice so that the tanks can perform or stop necessary operations (water purification operation, ice making operation, carbonated water preparation operation, water supply from any tank to another tank, and the like). Further, the carbonic acid gas cylinder 250 or the carbonic acid gas flow path 23 may further include a gas pressure sensor 24 for confirming the amount of the carbonic acid gas inside the carbonic acid gas cylinder 250, thereby facilitating replacement of the carbonic acid gas cylinder 250.

Meanwhile, various valves or pumps may be provided in the flow path as required. In particular, it is preferable to provide the

flow paths

23, 25, and 26 for supplying the carbonic acid gas or water to the relatively high-pressure carbonic acid water tank 340 or the hot water tank 350 with the backflow prevention valves.

Next, the structure and each structure of the water purifier of the present embodiment, and the arrangement relationship between the components will be described in detail with reference to fig. 2 to 6.

Referring to fig. 2, the case 100 includes a front cover 110, an upper cover 120, side covers 130, a rear cover 140, and a bottom frame 150, and the covers and the bottom frame may be formed separately from each other or may be integrally formed by being connected to each other wholly or partially.

The front cover 110 is provided with operation buttons and an LED lamp or a display for displaying the state of the water purifier, and is formed with a purified water (normal temperature water)/cold water/hot water intake, a carbonated water intake, and an ice intake. The rear cover 140 is provided with a condenser 520 constituting a cooling cycle system, and various components of a water purifier such as a compressor 510, a filter unit 200, and a carbonic acid gas tank 250 constituting the cooling cycle system are mounted on the base frame 150. In addition, a mesh for circulating air may be formed at the side cover 130 and the rear cover 140 to easily dissipate heat generated from the condenser 520.

The carbonic acid gas bucket 250, the inside of which is filled with carbonic acid gas, may be a standard product having a prescribed standard and capable of being replaced. In addition, a door (not shown) may be provided at the side cover 130 to facilitate flexible replacement of the carbonic acid gas bucket 250.

As described above, the tank assembly 300 includes the purified water tank 310, the cold water tank 320, the ice making part 400, the ice bank 330, the carbonated water tank 340, and the like. As shown in fig. 3 and 4, in the tank assembly 300, the ice making unit 400, the ice bank 330, and the carbonated water tank 340 are disposed inside the cold water tank 320, and the liquid separator 450, the capillary tube 530, and parts of the

refrigerant lines

551 and 552 constituting the cooling cycle are disposed outside the cold water tank 320. As described above, the outside of the cold water tank 320 including the ice making unit 400, the ice bank 330, and the carbonated water tank 340 is surrounded by the heat insulating material 380, and the heat insulating material 380 is made of foam molding resin, together with the liquid separator 540, the capillary tube 530, and a part of the

refrigerant lines

551 and 552 other than the clean water tank 310.

As described above, since the carbonated water tank 340 is installed in the cold water tank 320 together with the ice making unit 400 and the ice bank 330 and the ice making unit 400, the carbonated water tank 340, the ice bank 330 and the cold water tank 320 are all surrounded by the heat insulating material 380 at a time, an additional heat insulating process for the carbonated water tank 340 is not required, and thus, not only the manufacturing cost but also the apparatus size can be reduced. In addition, since the cold water tank 320 has the ice making part 400 therein, a low temperature, for example, 10 ℃ or less, can be maintained as a whole, and thus the carbonated water tank 340 can still maintain a low temperature depending on the internal temperature of the cold water tank 320, thereby reducing unnecessary energy consumption.

Cold water 10 is stored in the lower portion of cold water tank 320, and ice making unit 400, ice bank 330, guide grid 360, carbonated water tank 340, and circulation pump 370 are disposed in cold water tank 320. The cold water tank 320 occupies the largest volume in the tank assembly 300. The space defined by the cold water tank 320 forms an integrally communicated ice making compartment.

As shown in fig. 2 and 3, the cooling cycle system of the present embodiment includes: a compressor 510 compressing refrigerant gas to high temperature and high pressure; a condenser 520 for liquefying the refrigerant gas compressed by the compressor; a capillary tube 530 serving as a pipe for supplying the evaporator 410 with the liquid refrigerant liquefied by the condenser 520; an evaporator 410 for cooling surrounding water or making ice by evaporating liquid refrigerant to absorb surrounding heat; the liquid separator 540 separates liquid-phase refrigerant contained in the refrigerant gas evaporated in the evaporator so as to prevent the liquid-phase refrigerant from entering the compressor.

In such a cooling cycle, the evaporator 410 is provided inside the cold water tank 320, which is an ice making chamber, to constitute the ice making unit 400. The ice making part 400 is provided at an upper side of the ice making compartment, and takes cold water 10 from the cold water tank 320 to be used as water for making ice to prepare ice 20. For this, the ice making unit 400 includes an ice making water supply flow path 371 for obtaining cold water 10 from a circulation pump 370, wherein the circulation pump 370 is disposed adjacent to a lower bottom surface of the cold water tank 320.

Further, the evaporator 410 is formed in a U-shaped tube in plan view, and a refrigerant flows therein. The evaporator 410 having a U-shaped tube has one end connected to the capillary tube 530 and the other end connected to the liquid separator 540 through a refrigerant line 551. Further, as shown in fig. 5, the lower side of the evaporator 410 is formed with a plurality of evaporator fingers 411 that protrude downward and generate ice or cool water centering thereon.

Further, an electric heater 420 is disposed adjacent to the U-shaped tube evaporator 410 through an electric wire 421, and the electric heater 420 is an ice removing device for separating the finished ice. Therefore, when the electric heater 420 is heated, heat of high temperature is transferred to the evaporator fingers 411 to separate the made ice 20, thereby accomplishing deicing.

Further, as shown in fig. 5, a water spray nozzle portion 430 is provided at a lower side of the evaporator 410 of the ice making portion 400 of the present embodiment, the water spray nozzle portion 430 spraying water for making ice or cold water to the evaporator fingers 411. As shown in fig. 5, the water spray nozzle portion 430 has a flow path formed therein through which water (cold water 10) supplied by a circulation pump 370 through an ice making water supply flow path 371 passes, and the end of the flow path is connected to a water spray nozzle 431. Therefore, as shown in fig. 5, when water is sprayed to the evaporator finger portions 411 through the water spray nozzles 431, ice 20 is generated around the evaporator finger portions 411 or water hitting the evaporator finger portions 411 is cooled and dropped to the lower cold water tank 320, thereby producing cold water 10.

Further, a guide grid 360 inclined toward the ice bank 330 is provided below the evaporator 410 and the water spray nozzle portion 430. As shown in fig. 6, a slit 361 for blocking the ice 20 from passing is formed in the guide mesh 360, so that the separated ice 20 can be guided to the ice bank 330, and water that has not become ice but has dropped can be guided to the cold water tank 320 through the slit 361.

Here, the guide grid 360 may include an upper plate 362, a lower plate 364, an intermediate plate 363, a side plate 365, and the like. Wherein the lower plate 364 is provided at the lower portion of the upper plate 362 in a multi-layered structure, and the side panel 365 is used to close the side of the guide grid 360.

As described above, the upper plate 362 is inclined toward the ice bank 330, and the separated ice 20 is guided to the ice bank 330 due to the formation of the slit 361, and the water is guided to the lower plate 364 and the intermediate plate 363 through the slit 361.

The lower plate 364 is provided at a lower end of the upper plate 362 and is inclined in an opposite direction to the upper plate 362 for guiding the water passing through the slit 361 to the cold water tank 320. The intermediate plate 363 is disposed between the upper and lower ends of the upper plate 362 for guiding water passing through the slit 361 to the cold water tank 320 independently of the lower plate 364.

In this way, when the guide mesh is formed of a multi-layer plate structure, water passing through the slits 361 can be uniformly dispersed in the lower plate 364 and the intermediate plate 363, as compared with the case of forming a single-layer plate. As a result, noise generated by water droplets passing through the slit 361 falling to water that has accumulated on the plate can be reduced.

The ice bank 330 is disposed above the cold water storage space of the ice making chamber and below the ice making unit (the evaporator 410, the electric heater 420, and the water spray nozzle unit 430), and a bottom surface of the ice bank 330 is spaced apart from a bottom surface of the cold water tank 320 and stores the ice 20 guided by the guide grids 360. The ice bank 330 is provided with a screw 331, the screw 331 conveys the stored ice to the ice taking port 115 side, and a motor 332 that rotates the screw 331 is further provided. The wing part 333 at the front end of the screw 331 is a member for preventing the ice 20 stored in the ice bank 330 to be taken out from being adhered to each other and properly adjusting the discharge amount. In addition, the ice bank 330 is formed at the bottom surface thereof with holes 334 so that the water formed by the freezing can be discharged, and thus the water formed by the freezing naturally drops into the lower cold water tank 320.

The carbonated water tank 340 is disposed at the other side of the upper portion of the ice making compartment, which is away from the side where the ice making part 400 is disposed, for preparing and storing carbonated water. In the ice water purifier having the structure of this embodiment, which cools cold water while making ice using the ice making unit 400, the other side (the left upper space in fig. 4) of the carbonated water tank 340, which is located above the ice making chamber, is originally a vacated space. Since the ice bank 330 is disposed at a position below the ice making part 400 anyway, an upper space of the ice bank 330 in the ice making chamber (left upper space of the ice making chamber) is vacant. Therefore, in the present embodiment, the empty space is used as the installation space of the carbonated water tank 340, and thus the space can be used to the maximum extent and the size of the apparatus can be reduced.

Cold water 10 is supplied from the cold water tank 320 to the carbonated water tank 340 as carbonated water preparation water by a separate pump 15 (see fig. 1) to prepare carbonated water. Further, the carbonic acid gas taken from the carbonic acid gas barrel 250 through the carbonic acid gas flow path 23 is dissolved into the cold water supplied to the inside of the carbonic acid water tank 340 to prepare carbonated water. The carbonated water stored in the carbonated water tank 340 is taken out through the carbonated water flow path 26 and discharged through the water intake port 114, and is supplied to the user.

Further, a cold water circulation flow path 342 is provided inside the carbonated water tank 340, and the cold water circulation flow path 342 takes cold water from the cold water tank 320 as cooling water and circulates the cold water so as to cool carbonated water or carbonated water preparation water stored in the carbonated water tank 340 to improve the carbonated water preparation efficiency. The cold water circulation flow path 342 may be provided inside the carbonated water tank 340 in a coiled manner, for example, to prevent the cooling water from being mixed with the carbonated water (or carbonated water preparation water). One end of the cold water circulation flow path 342 is connected to a cooling water supply flow path 372, and the cooling water supply flow path 372 supplies the cold water 10 pumped by the circulation pump 370. The other end of the cold water circulation flow path 342 is connected to a recovery flow path 373 so that the cold water circulating through the cold water circulation flow path 342 flows down along the side wall of the cold water tank 320 and is recovered in the cold water tank 320.

In the present embodiment, the number of components is reduced by providing the flow divider 375 in the cooling water supply flow path 372 so that the cooling water supply flow path 372 and the ice-making water supply flow path 371 share the same circulation pump 370, but it is needless to say that pumps may be used separately in the ice-making water supply flow path 371 and the cooling water supply flow path 372.

As described above, by supplying the cold water 10 in the cold water tank 320 to the ice making unit 400 to make ice 20 and cooling the carbonated water tank 340 with the cooled cold water 10, ice can be made in one cooling cycle (evaporator) and cold water or carbonated water can be flexibly made. In particular, as long as the ice making unit 400 makes ice, the cold water in the cold water tank 320 is continuously cooled, and the carbonated water tank 340 can be simultaneously cooled by the continuously cooled cold water 10, so that the cold water and the carbonated water can be simultaneously cooled. Therefore, the disadvantage of the prior art in which cooling is performed sequentially, that is, the problem that one of cold water and carbonated water cannot be sufficiently cooled or the cooling performance is different can be solved.

As described above, although the present invention has been described with respect to the limited embodiments and the accompanying drawings, the present invention is not limited thereto, and it is apparent to those skilled in the art that various modifications and variations can be made in the technical spirit of the present invention and the scope of the following claims.

For example, the above embodiment has been described taking a water purifier having a filter unit as an example, but the present invention can also be applied to a drinking water supply apparatus that directly cools mineral water and raw water without a filter unit to supply ice and/or cold water. When the drinking water supply apparatus is used by installing a mineral water tank, the above-described purified water tank 310 may be replaced with the mineral water tank. When raw water such as tap water is used, the raw water may be supplied directly to the cold water tank 320 without the water purification tank 310.

Further, in the above-described embodiment, the cooling of the carbonated water tank 340 is performed using the cold water in the cold water tank 320, but a separate cooling cycle or evaporator may be used to cool the carbonated water tank.

In the above embodiment, the evaporator 410 is described as a U-shaped tube having the evaporator finger portions 411 formed thereon, but the evaporator may be provided on the back of the ice making tray (tray) serving as an ice generating frame. In the above-described embodiment, the water spray nozzles 430 spray water to the evaporator finger portions 411 to prepare ice and cold water, but the present invention may be modified to spray water into the ice making tray or the ice making water receiving tank, or modified to allow water to flow into the ice making tray or the ice making water receiving tank to fill the tray or the water receiving tank with water. In the case where the ice making tray is filled with water to make ice, cold water can be prepared by supplying ice prepared by the ice making tray to a cold water tank instead of the ice bank.

Further, although the electric heater 420 is used as the deicing means in the above embodiment, deicing may be performed by supplying hot gas having a high temperature into the evaporator.

Although the ice bank 330 is spaced apart from the bottom surface of the cold water tank 320 in the above-described embodiment, the ice bank may be spaced apart from the cold water tank by a partition wall and disposed adjacent to one side (left side in fig. 4) of the cold water tank. Further, the circulation pump 370 is described as being disposed inside the cold water tank 320 in the above-described embodiment, but may be disposed outside the cold water tank.

In addition, the drinking water supply device may not have a hot water supply function such as a hot water pipe, and may have an additional function of supplying a beverage such as coffee.

Claims

1. A potable water supply apparatus, comprising:

the lower part of the cold water tank is used for storing cold water and limiting an ice making chamber, and the ice making chamber is a space which is integrally communicated;

an ice making part provided at one side of an upper portion of the ice making chamber and used to make ice;

an ice bank provided at a position above and below the cold water storage space of the ice making chamber and storing ice prepared by the ice making part;

a carbonated water tank disposed at the other side of the upper part of the ice making chamber, which avoids the side where the ice making part is disposed, and used for storing carbonated water; and

a heat insulating material surrounding an outside of the ice making compartment,

a cold water circulation flow path is provided inside the carbonated water tank, the cold water circulation flow path acquires cold water stored in a lower portion of the ice making chamber and circulates the cold water,

the cold water circulation flow path is configured to prevent cold water as cooling water from being mixed with carbonated water or carbonated water preparation water,

the drinking water supply device further includes a circulation pump supplying cold water stored in a lower portion of the ice making chamber to the ice making part,

the ice making part takes cold water by the circulation pump to make ice,

the circulation pump supplies cold water to the ice making unit and also supplies cold water to the cold water circulation flow path.

2. The drinking water supply apparatus according to claim 1,

the carbonated water tank takes in cold water stored in a lower portion of the ice making chamber and carbonated gas from a carbonated gas bucket, thereby producing carbonated water, and stores the carbonated water.

3. The drinking water supply apparatus according to claim 1, wherein the ice making part comprises:

an evaporator formed in a plurality of fingers and having a refrigerant flowing therein; and

and a plurality of spray nozzles disposed around the evaporator and spraying cold water supplied by the circulation pump toward the evaporator.

4. Drinking water supply device according to claim 3,

and a guide grid obliquely arranged at a lower portion of the ice making part, the guide grid guiding the ice separated from the ice making part into the ice bank and guiding cold water flowing without being made into ice by the ice making part to a lower portion of the cold water tank.

5. The drinking water supply apparatus according to claim 1,

and a hole is formed in the bottom surface of the ice storage bin, so that water formed by melting ice drops to the cold water tank.

6. Drinking water supply device according to one of claims 1 to 5,

the drinking water supply device is a water purifier having a filter unit for filtering the obtained raw water, and capable of supplying purified water purified by the filter unit.