KR20230157913A - water dispensing apparatus - Google Patents

Abstract

A water dispensing device is provided. A water dispensing device according to an embodiment is disposed inside a sink, and includes a main body portion that supplies drinking water that a user can drink, a water outlet portion extending from the upper surface of the sink, and a drinking water pipe extending from the main body portion to the outlet portion and through which drinking water flows. , a first outlet valve connected to the drinking water pipe to guide the direction of drinking water, and a first drain pipe branched from the first outlet valve and configured to discharge the drinking water to the outside, wherein the drinking water pipe includes the main body portion and the first drain pipe. 1 It includes a first drinking water piping part connecting the water outlet valve, and a second drinking water piping part connecting the first water outlet valve and the water outlet part, and according to the operation of the first water outlet valve, the drinking water supplied from the first drinking water piping part is 2 It is configured to move to the drinking water piping section or the first drain piping.

Description

water dispensing apparatus {water dispensing apparatus}

The present invention relates to a water dispensing device.

In general, a water dispensing device is a device that supplies water and allows dispensing a desired amount of water according to a user's operation.

Such water dispensing devices typically allow stored water to be dispensed through a nozzle when a user operates a lever or button. In detail, the water dispensing device is configured so that the valve of the nozzle is opened so that water can be dispensed while the user operates the lever or button, and the user operates the lever or button while checking the amount of water filled in the cup or container. ends.

Such water dispensing devices can be applied to various fields, but are typically applied to refrigerators and water purifiers. In particular, water dispensing devices provided in refrigerators and water purifiers are configured to have a function to automatically supply a set amount of water according to user manipulation. Recently, water dispensing devices have been developed that can supply not only purified water but also cold water and hot water.

First, in Korean Patent No. 1884736 (hereinafter referred to as Prior Document 1), an 'under-sink type drinking water supply device' is disclosed.

In the prior art document 1, the characteristics of a discharging means including a main body installed below the sink and a nozzle unit installed outside the sink through which water is discharged are disclosed.

In addition, the operating panel for selecting functions is provided in a separate form on the upper side of the nozzle unit, the feature of additionally forming a container support folded or rotatably connected to the discharge means, and the feature of automatic draining of residual water in the pipe. It begins.

In the case of Prior Document 1 as described above, purified water, cold water, and hot water can be supplied through the nozzle portion exposed to the outside of the sink, but there is a disadvantage in that it is impossible to supply sterilizing water with cleaning power. Additionally, the specific coupling structure of the discharge means and the body portion is not disclosed.

Meanwhile, Korea Patent Publication No. 10-2014-0033772 (hereinafter referred to as Prior Document 2) discloses a purified and sterilized water supply device.

In the preceding document 2, a feature including a purified water generating means and a supply means for supplying the purified water and sterilizing water generated by the sterilizing water generating means to the outside is disclosed.

In addition, the supply means is disclosed to include a supply cock for supplying purified or sterilized water to a sink sink, and an operating unit installed on the supply cock.

In the case of Prior Document 2 as described above, as sterilizing water and purified water are discharged through one cock, a problem may occur in which the sterilizing water remaining in the pipe and the cock is mixed with the purified water and discharged when purified water is discharged. For reference, in the case of sterilizing water, there is a problem that it is not suitable as drinking water because it contains hypochlorous acid (HClO).

Therefore, it is necessary to discharge purified water and sterilized water through separate cokes.

In addition, in the conventional case, as the electrodes are all flat, the volume of the sterilizing water generating device that generates sterilizing water increases, so it takes up a lot of installation space, and the sterilizing water generating device can be easily installed inside a conventional water purifier or water treatment device. There were also problems that were difficult to add.

Additionally, when sterilizing water remains in the pipes, valves, and cocks, there was a problem of precipitation occurring in the pipes, valves, and cockles, and erosion of the pipes, valves, and cockles.

In order to solve the above problems, the present invention can save installation space by reducing the volume of the sterilizing water module that generates sterilizing water, and the sterilizing water module can be easily installed inside an existing water purifier or water treatment device. Provides a water dispensing device.

In addition, a water dispensing device is provided that allows easy assembly or disassembly of a sterilizing water module that generates sterilizing water.

Additionally, a water dispensing device is provided in which the performance of an electrode that generates sterilizing water can be maintained at a constant level.

In addition, a water dispensing device is provided that can maintain the production capacity of sterilizing water while reducing the volume of the electrode.

In addition, a water dispensing device is provided in which drinking water and/or sterilizing water selected from purified water, cold water, and hot water is discharged from a water outlet installed outside the sink.

In addition, a water dispensing device is provided in which drinking water and sterilizing water are discharged through separate cocks and separate pipes.

Additionally, a water dispensing device is provided that can automatically drain remaining sterilizing water in pipes and valves after sterilizing water is discharged.

In addition, a water dispensing device is provided that supplies purified water to the outlet nozzle after discharging sterilized water, thereby enabling cleaning of the pipe connecting the valve and the cork and the cork.

In addition, after the sterilizing water is discharged, purified water is supplied to the outlet nozzle, so that the first washing of fruits and vegetables with sterilizing water, and the secondary washing of rinsing the sterilizing water with purified water discharged after the sterilizing water, can be carried out continuously in one place. Provides a water dispensing device.

In addition, a water dispensing device is provided that can automatically drain sterilizing water remaining in pipes and valves even if a command to stop discharging water is input from a user during the process of discharging sterilizing water or washing water.

In addition, when a command for discharging sterilizing water is input from a user, a water dispensing device is provided that can automatically drain remaining sterilizing water in pipes and valves before discharging sterilizing water, and then supply sterilizing water to a water dispensing nozzle.

A water dispensing device according to an embodiment for solving the above problem includes a main body disposed inside a sink and supplying potable water for a user to drink; a water outlet extending from the upper surface of the sink; a drinking water pipe extending from the main body to the water outlet, through which the drinking water flows; A first water outlet valve connected to the drinking water pipe to guide the direction of movement of the drinking water; and a first drain pipe branched from the first water discharge valve and configured to discharge the drinking water to the outside, wherein the drinking water pipe includes: a first drinking water pipe connecting the main body and the first water discharge valve; and a second drinking water piping unit connecting the first water outlet valve and the water outlet unit, and according to the operation of the first water outlet valve, the drinking water supplied from the first drinking water piping unit is supplied from the second drinking water piping unit or the water outlet unit. It is configured to move to the first drain pipe.

The first water outlet valve includes a first inlet through which the drinking water flows in from the first drinking water piping, a first outlet through which the drinking water is discharged to the second drinking water piping, and a first outlet through which the drinking water is drained into the first drain pipe. 1 A drain, and a first plunger configured to move to one side and the other by an electric signal, wherein when the first plunger moves to one side, a drinking water discharge passage connecting the first inlet and the first outlet is formed. When the first plunger moves to the other side, a drinking water drain passage connecting the first inlet and the first drain can be formed.

The first water outlet valve is formed at the lower end of the first plunger and further includes a first sealing part for preventing leakage of the drinking water, wherein the drinking water discharge passage is located on the other side of the first sealing part, and the drinking water is drained. The flow path may be located on one side of the first sealing part.

The main body further supplies sterilizing water for sterilization, a sterilizing water pipe extending from the main body to the water outlet, through which the sterilizing water flows; a second water outlet valve connected to the sterilizing water pipe and guiding the direction of movement of the sterilizing water; and a second drain pipe branched from the second water outlet valve and configured to discharge the sterilizing water to the outside, wherein the sterilizing water pipe includes a first sterilizing water pipe connecting the main body and the second water outlet valve. It includes a piping part, and a second sterilizing water piping part connecting the second water outlet valve and the water outlet part, and according to the operation of the second water outlet valve, the sterilizing water supplied from the first sterilizing water piping part is supplied to the first sterilizing water piping part. 2 It may be configured to move to the sterilizing water pipe or the second drain pipe.

The second water outlet valve includes a second inlet through which the sterilizing water flows in from the first sterilizing water piping, a second outlet through which the sterilizing water is discharged into the second sterilizing water piping, and a discharge of the sterilizing water into the second drain pipe. a second drain, and a second plunger configured to move to one side and the other by an electric signal, wherein when the second plunger moves to one side, the sterilizing water is discharged connecting the second inlet and the second outlet. A flow path is formed, and when the second plunger moves to the other side, a sterilizing water drain flow path connecting the second inlet and the second drain can be formed.

The second water outlet valve is formed at the lower end of the second plunger and further includes a second sealing part that prevents leakage of the sterilizing water, wherein the sterilizing water discharge passage is located on the other side of the second sealing part, The sterilizing water drain passage may be located on one side of the second sealing part.

The water outlet unit includes a body extending upward from the upper surface of the sink, and a water outlet nozzle rotatably coupled to the body, wherein the water outlet nozzle includes a first water outlet nozzle into which the drinking water pipe extends, and It is located below the first water outlet nozzle and may include a second water outlet nozzle inside which the sterilizing water pipe is extended.

The water outlet may further include an inner member disposed inside the body, fixed to the sink, and formed in the shape of a hollow tube with open upper and lower ends.

The body includes a first body portion located below the second water discharge nozzle, and a second body portion located between the first water discharge nozzle and the second water discharge nozzle, wherein the first water discharge nozzle is located on the lower side. It includes a first insertion part that extends downward and is inserted into the second body, and the second water outlet nozzle includes a second insertion part that extends downward and is inserted into the first body, and the inner member includes: It may be inserted and positioned inside the first insertion part and the second insertion part.

The first water outlet nozzle and the second water outlet nozzle may be coupled to be able to rotate independently with respect to the inner member.

The water outlet further includes a penetrating member that penetrates the sink, and the penetrating member is coupled to a lower end of the inner member to secure the inner member to the sink.

The first water outlet nozzle and the second water outlet nozzle may be arranged to be vertically spaced apart.

The first water outlet nozzle is formed on the bottom of the end and includes a drinking water outlet through which the drinking water is discharged, and the second water outlet nozzle is formed on the bottom of the end and includes a sterilizing water outlet through which the sterilizing water is discharged, The sterilizing water outlet may be located closer to the body than the drinking water outlet.

According to the water dispensing device according to an embodiment of the present invention, the following effects can be expected.

First, drinking water and/or sterilizing water selected from purified water, cold water, and hot water can be discharged from the water outlet installed outside the sink, which has the advantage of increasing user convenience.

In addition, the drinking water and the sterilizing water are discharged through separate cocks and separate pipes, so there is an advantage in that the user is not provided with drinking water mixed with part of the sterilizing water, but only drinking water.

In addition, from one water outlet installed on the outside of the sink, drinking water selected from purified water, cold water, and hot water and sterilizing water with cleaning power are discharged, which has the advantage of allowing the user to perform washing and rinsing operations in one place. .

In addition, by reducing the volume of the sterilizing water module that generates sterilizing water, installation space can be saved, and there is an advantage in that the sterilizing water module can be easily installed inside an existing water purifier or water treatment device.

In addition, there is an advantage that the assembly or disassembly of the sterilizing water module that generates sterilizing water can be easily performed.

Additionally, there is an advantage that the performance of the electrode that generates sterilizing water can be maintained constant.

In addition, there is an advantage in that the volume of the electrode can be reduced while maintaining the production capacity of sterilizing water.

In addition, after the sterilizing water is discharged, the remaining sterilizing water in the pipes and valves is automatically drained, which has the advantage of reducing precipitation and corrosion in the pipes and valves.

In addition, after the sterilizing water is discharged, purified water is supplied to the discharge nozzle, so that the pipe connecting the valve and the cock and the cock can be cleaned, which has the advantage of reducing precipitation and corrosion in the pipe and cock.

In addition, after the sterilizing water is discharged, purified water is supplied to the outlet nozzle, so that the first washing of fruits and vegetables with sterilizing water, and the secondary washing of rinsing the sterilizing water with purified water discharged after the sterilizing water, can be carried out continuously in one place. There is an advantage.

In addition, in the process of discharging sterilizing water or washing water, even if a command to stop discharging water is input from the user, the sterilizing water remaining in the pipes and valves can be drained automatically, reducing the occurrence of precipitation and corrosion in pipes and valves. There are benefits to this.

In addition, when a command for discharging sterilizing water is input from the user, there is an advantage in that the sterilizing water remaining in the pipe and valve is automatically drained before discharging the sterilizing water, and then the sterilizing water can be supplied to the discharging nozzle.

Figure 1 is a diagram showing a state in which a water dispensing device according to an embodiment of the present invention is mounted on a sink.
Figure 2 is a water piping diagram of a water dispensing device according to an embodiment of the present invention.
Figure 3 is a perspective view of the water outlet, which is a main component of the present invention.
Figure 4 is an exploded perspective view of the water outlet part, which is a main component of the present invention.
Figure 5a is a side view of the water outlet, which is a main component of the present invention.
Figure 5b is an enlarged view of a portion of Figure 5a.
Figure 6 is a cross-sectional view showing the joint portion of the water outlet and the sink.
Figure 7a is a front view showing an example of a combined structure of a water outlet and a sink.
Figure 7b is a front view showing another example of the joint portion of the water outlet and the sink.
Figure 7c is a diagram showing an example of operation of the first water outlet valve and the second water outlet valve.
Figure 8 is a view viewed from below in a state in which the nut member and the screw are fastened.
Figure 9 is a side view of the state in which the nut member and the screw are fastened.
Figure 10 is a cross-sectional view of the first water discharge nozzle, which is a component of the present invention.
FIG. 11 is an enlarged view of a portion of FIG. 10.
Figure 12a is a view from above showing the display and input means separated from the first water outlet nozzle.
Figure 12b is an enlarged view of a portion of Figure 12a.
Figure 13 is a diagram showing a state in which the first connection member, the second connection member, and the coupling member, which are some components of the present invention, are combined.
Figure 14 is a cross-sectional view of the second water discharge nozzle, which is a component of the present invention.
Figure 15 is a view from above of the second water outlet nozzle with the upper frame removed.
Figure 16 is a view of the second water outlet nozzle viewed from below.
Figure 17 is a cross-sectional view showing a state in which the sterilizing water pipe is fixed between the upper frame and the lower frame.
FIG. 18 is an enlarged view of a portion of FIG. 17.
Figure 19 is a view of the display and input means viewed from the bottom.
Figure 20 is a view of the first water outlet nozzle viewed from below.
Figure 21 is a side cross-sectional view of the first water outlet nozzle.
Figure 22 is a front cross-sectional view of the first water outlet nozzle.
FIG. 23 is an enlarged view of a portion of FIG. 22.
Figure 24 is a perspective view of a sterilizing water module, which is a component of the present invention.
Figure 25 is an exploded perspective view of a sterilizing water module, which is a component of the present invention.
Figure 26 is a cross-sectional view of the electrode part included in the sterilizing water generation module, which is a component of the present invention.
Figure 27 is a front view showing the sterilizing water module and control unit coupled to the filter bracket.
Figure 28 is a front view showing part of the filter bracket.
Figure 29 is a block diagram showing the configuration for explaining the sterilizing water discharge process in the water dispensing device according to the present invention.
Figure 30 is a flowchart showing a control method for discharging sterilizing water from a water dispensing device according to an embodiment of the present invention.
Figure 31 is a flowchart showing a control method for discharging sterilizing water from a water dispensing device according to another embodiment of the present invention.
Figure 32 is a timing diagram showing the operation status of the sterilizing water module and each valve when a fixed amount of sterilizing water is discharged.
Figure 33 is a timing diagram showing the operation status of the sterilizing water module and each valve before a fixed amount of sterilizing water is discharged and during forced shutdown.
Figure 34 is a timing diagram showing the operation status of the sterilizing water module and each valve before dispensing a fixed amount of sterilizing water and when dispensing cold/hot/purified water.
Figure 35 is a flowchart showing a control method for hot water discharge from a water dispensing device according to an embodiment of the present invention.
Figure 36 is a flowchart showing a control method for hot water discharge from a water dispensing device according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

Additionally, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. When a component is described as being "connected," "coupled," or "connected" to another component, that component may be directly connected or connected to that other component, but there is no need for another component between each component. It should be understood that may be “connected,” “combined,” or “connected.”

<Under sink water purifier>

Figure 1 is a diagram showing a state in which a water dispensing device according to an embodiment of the present invention is mounted on a sink. And, Figure 2 is a water piping diagram of a water dispensing device according to an embodiment of the present invention.

The water dispensing device according to the present invention may include various water treatment devices and purification devices that introduce water from the outside, such as a water purifier or refrigerator, purify the introduced water, and then discharge it.

As an example, the water dispensing device according to the present invention may be equipped with at least a portion of an under sink type water purifier disposed in the lower space of the sink 10.

Referring to Figures 1 and 2, the water dispensing device according to the present invention includes a main body portion 100 installed inside the sink 10, and a water outlet installed so that at least a portion is exposed to the outside of the sink 10. Includes part 200.

First, the main body 100 includes a housing 110 that forms the exterior. The housing 110 includes a top cover 111 in a planar shape forming an upper surface. Additionally, the front and back sides of the housing 110 may be formed to be convex forward and backward, respectively. In addition, both sides and the bottom surface connecting the front and back sides may form a flat surface.

The housing 110 may be provided in a box shape and may be placed in the storage space 11 provided below the sink 10.

The housing 110 may be provided in a slim form with narrow left and right widths and long front and rear lengths. Therefore, it can be placed inside the sink in a left-right direction or in a front-to-back direction, and can be placed at the inner corner of the space inside the sink, thereby improving space utilization.

Additionally, the front of the housing 110 can be separated. When the front of the housing 110 is separated, the filter is exposed, and the user can easily replace the filter exposed to the outside.

In addition, the water dispensing device according to the present invention includes a raw water pipe 20 that guides raw water supplied from the outside of the housing 110 to the inside of the housing 110, and a raw water pipe 20 that supplies raw water along the raw water pipe 20. It includes a filter 120 that purifies purified water into purified water, and a water outlet pipe 30 that flows purified water that has passed through the filter 120 toward the water outlet 200.

Meanwhile, the raw water pipe 20 penetrates the housing 110 and connects the external water supply source to the filter 120 inside the housing 110. Through the raw water pipe 200, raw water supplied from a water supply source outside the housing 110 can be supplied to the filter 120.

As described above, the water (raw water) supplied to the filter 120 is purified into purified water as it passes through the filter 120. At least one filter 120 may be provided. As an example, three or more filters 120 may be provided. Accordingly, the water passing through the raw water pipe 200 can be purified into cleaner water while passing through the plurality of filters 120.

In addition, purified water that has passed through the filter 120 may flow toward the water outlet 200 exposed to the outside of the sink 10 through the water outlet pipe 30.

For this purpose, one end of the water outlet pipe 30 is connected to the filter 120 side, and the other end penetrates the housing 110 and is exposed to the outside of the housing 110, and then the water outlet portion ( 200) is connected to the side. At this time, the water outlet pipe 30 may pass through the rear end (right side with respect to FIG. 1) of the housing 110. Additionally, the water outlet pipe 30 may include a sterilizing water pipe 34, common pipes 38 and 39, and a hot water pipe 33, which will be described later. As described above, when the water outlet pipe 30 penetrates the rear end of the housing 110, the water outlet pipe 30 does not penetrate the top cover 111 forming the upper surface of the housing 110, so the top cover 111 Assembly and separation can be carried out easily.

Meanwhile, in order for the water discharge pipe 30 to penetrate the rear end of the housing 110 as described above, a recess concave downward is formed in the upper center of the rear cover 112 forming the rear of the housing 110 (not shown). poetry) can be formed.

And, through the recess (not shown), at least one of the water outlet pipe 30, that is, the sterilizing water pipe 34, the common pipe 38 and 39, and the hot water pipe 33, which will be described later, is connected to the housing. (110) It can escape from the inside to the outside. Meanwhile, the open upper side of the recess (not shown) may be covered by the top cover 111. Therefore, when the top cover 111 is separated from the housing 110, the upper side of the recess (not shown) is opened, and when the top cover 111 is mounted on the housing 110, the upper side of the recess (not shown) is opened. As this is covered, the recess (not shown) forms a closed space. In addition, the water discharge pipe 30 passing through the recess (not shown) can be fixed by the recess (not shown) and the top cover 111.

In addition, the other end of the water outlet pipe 30 exposed to the outside of the housing 110 may be directly connected to the water outlet unit 200, and may be connected to the water outlet unit (200) through a separate connection pipe (not shown) or connection part. 200).

In the latter case, one end of the connecting pipe (not shown) or connecting part may be connected to the water outlet pipe 30, and the other end may be connected to the water outlet unit 200. At this time, water discharged to the outside of the housing 110 through the water outlet pipe 30 may be supplied to the water outlet unit 200 through a connection pipe (not shown).

Meanwhile, as described above, the water outlet pipe 30 may include at least one of a purified water pipe 31, a cold water pipe 32, a hot water pipe 33, and a sterilizing water pipe 34.

That is, in the following description, the purified water pipe 31, the cold water pipe 32, the hot water pipe 33, and the sterilizing water pipe 34 may be understood as being included in the water outlet pipe 30. In addition, the common pipes 38 and 39, which will be described later, can also be understood as being included in the water outlet pipe 30.

In the following description, the water outlet pipe 30 is understood to include all of the purified water pipe 31, the cold water pipe 32, the hot water pipe 33, the sterilizing water pipe 34, and the common pipes 38 and 39. It can be.

One end of the water outlet pipe 30 is connected to the filter 120, and water passing through the filter 120 flows toward the water outlet unit 200 through the water outlet pipe 30.

In addition, the other end of the water outlet pipe 30 may branch into a purified water pipe 31, a cold water pipe 32, a hot water pipe 33, and a sterilizing water pipe 34 inside the housing 110. .

The water branched from the water outlet pipe 30 to the water purification pipe 31 is supplied directly to the water outlet 200 in a purified state.

On the other hand, the water branched from the water outlet pipe 30 to the cold water pipe 32 is cooled while passing through the cold water tank 140 provided on the cold water pipe 32, and then enters the water outlet 200 in the state of cold water. supplied to the side.

In addition, the water branched into the hot water pipe 33 is heated through the hot water tank 130 provided on the hot water pipe 33 and then supplied to the water outlet 200 in the form of hot water.

In addition, the water branched into the sterilizing water pipe 34 may be supplied to the water outlet 200 in the state of sterilizing water while passing through the sterilizing water module 150 provided on the sterilizing water pipe 34.

Meanwhile, a pressure reducing valve 21 that adjusts the flow rate of water supplied to the filter 120 may be installed in the raw water pipe 20.

In addition, the raw water pipe 20 or the water outlet pipe 30 includes a flow sensor 36 that detects the flow rate of water, or an inlet valve 35 that controls the flow rate of water or controls the flow of water, or detects the flow rate of water. At least one of the flow rate sensors (not shown) may be installed.

In addition, the purified water pipe 31 branched from the water outlet pipe 30, the cold water pipe 32, the hot water pipe 33, and the sterilizing water pipe 34 are provided with open/close valves that control the flow of water in each pipe. can be installed separately.

In detail, a water purification valve 41 may be installed in the water purification pipe 31 to control the flow of water in the water purification pipe 31. Additionally, a cold water valve 42 that controls the flow of water in the cold water pipe 32 may be installed in the cold water pipe 32. Additionally, a hot water valve 43 that regulates the flow of water in the hot water pipe 33 may be installed in the hot water pipe 33. Additionally, a sterilizing water valve 44 that regulates the flow of water in the sterilizing water pipe 34 may be installed.

Additionally, a flow control valve 37 may be installed in the hot water pipe 33 to control the amount of water flowing into the hot water tank 130. Additionally, a safety valve 51 for steam discharge may be installed in the hot water tank 130.

On the other hand, when the flow sensor 36 is provided as described above, the amount of water supplied to the cold water tank 140 and the hot water tank 130 can be detected, and the flow rate information is used to detect the cold water tank 140 and the hot water. The output supplied to the tank 130 can be adjusted.

In addition, if the flow control valve 37 is provided, the amount of water supplied to the hot water tank 130 can be adjusted, and hot water at the user's desired temperature can be instantly generated.

In addition, the purification pipe 31, the cold water pipe 32, the hot water pipe 33, and the sterilizing water pipe 34 are each equipped with a purification valve 41, a cold water valve 42, a hot water valve 43, and a sterilization water pipe 34. When the water valve 44 is provided, the flow of water supplied to the cold water tank 140, the hot water tank 130, and the sterilizing water module 150 can be controlled. In addition, the cold water valve 42, hot water valve 43, and sterilizing water valve 44 are opened only when it is necessary to produce cold water, hot water, or sterilizing water, and the cold water tank 140, hot water tank 130, and sterilizing water module ( 150), water can be supplied. In addition, in the case of the purified water valve 41, it is opened only when purified water is required to be discharged, so that purified water can be supplied to the water discharge unit 200.

The water outlet unit 200 is a condenser that supplies purified water, cold water, hot water, and sterilized water supplied from the purified water pipe 31, cold water pipe 32, hot water pipe 33, and sterilized water pipe 34 to the user. Includes water outlet nozzles (210,220). The plurality of water outlet nozzles 210 and 220 may extend horizontally from the body 230 extending vertically and exposed to the upper side of the sink 10.

The water outlet nozzles 210 and 220 may include a first water outlet nozzle 210 through which purified water, cold water, and hot water are discharged, and a second water outlet nozzle 220 through which sterilizing water is discharged.

For example, the first water outlet nozzle 210 and the second water outlet nozzle 220 may be arranged to be spaced apart in the vertical direction. At this time, the first water outlet nozzle 210 may be disposed at the upper side, and the second water outlet nozzle 220 may be disposed at the lower side.

Therefore, as the sterilizing water discharged from the second water outlet nozzle 220 falls on the first water outlet nozzle 210, which discharges purified water, cold water, and hot water, the first water outlet nozzle 210 is contaminated by the sterilizing water. can be prevented. In addition, the first water outlet nozzle 210, through which relatively frequently used cold, hot, and purified water is dispensed, is disposed on the upper side, making it easy for the user to access, operate, and dispense water. In addition, the second water outlet nozzle 220, which is relatively rarely used, is located below the first water outlet nozzle 210, can be hidden, and is more difficult to access than the first water outlet nozzle 210, so it accidentally discharges sterilizing water. This can prevent drinking accidents.

As another example, the first water outlet nozzle 210 and the second water outlet nozzle 220 may be arranged to be spaced apart in the horizontal direction.

The first water outlet nozzle 210 and the second water outlet nozzle 220 may be rotatably mounted with respect to the body 230. The first water outlet nozzle 210 and the second water outlet nozzle 220 can rotate independently.

Meanwhile, the purified water and cold water flowing along the purified water pipe 31 and the cold water pipe 32 are merged in one first common pipe 38 and are directed to the water outlet 200 through the first common pipe 38. can be supplied. Accordingly, purified water, cold water, and hot water flowing through the first common pipe 38 and the hot water pipe 33 are supplied to the user through the first water outlet nozzle 210.

Additionally, the hot water pipe 33 may also join the first common pipe 38. In addition, the second common pipe 39 can connect the water outlet 200 from the point where the hot water pipe 33 and the first common pipe 38 join. In this case, purified water, cold water, and hot water flowing through the second common pipe 39 may be supplied to the user through the first water outlet nozzle 210.

Additionally, the sterilizing water generated in the sterilizing water module 150 may flow through the sterilizing water pipe 34 and then be supplied to users outside the sink 10 through the second water outlet nozzle 220.

A second water outlet valve 62 may be installed on the sterilizing water pipe 34. The second water outlet valve 62 may be installed between the sterilizing water pipe 34 and the water outlet unit 200.

The second water outlet valve 62 can supply sterilizing water flowing toward the water outlet 200 through the sterilizing water pipe 34 to the water outlet 200 or discharge it to a separate drain pipe 50. .

Additionally, a first water outlet valve 61 may be installed on the second common pipe 39. The first water outlet valve 61 may be installed between the second common pipe 39 and the water outlet unit 200.

The first water outlet valve 61 supplies purified water, cold water, and hot water flowing toward the water outlet 200 through the second common pipe 39 to the water outlet 200, or uses a separate drain pipe 50. It can be discharged as

For example, the first water outlet valve 61 and the second water outlet valve 62 each have one inlet, a first outlet and a second outlet that are selectively opened, and the two outlets are selectively opened and closed. It may be provided as a three-way valve including an actuator. At this time, the first outlet may be connected to the water outlet nozzle (210, 220), and the second outlet may be connected to the drain pipe (50).

In detail, the inlet of the first water discharge valve 61 is connected to the second common pipe 39, the first outlet is connected to the first water discharge nozzle 210, and the second outlet is connected to the drain pipe 50. do.

In addition, the inlet of the second water outlet valve 62 is connected to the sterilizing water pipe 34, the first outlet is connected to the second water outlet nozzle 220, and the second outlet is connected to the drain pipe 50. .

For reference, the drain pipe connected to the first water outlet valve 61 and the drain pipe connected to the second water outlet valve 62 may be provided separately, and one drain pipe may be commonly used.

Meanwhile, the water outlet 200 may be mounted on the sink 10 so that at least part of it is exposed to the upper part of the sink 10, as shown in FIG. 1. Accordingly, the body 230 and the first water outlet nozzle 210 and the second water outlet nozzle 220 extending to one side of the body 230 may be exposed to the outside while being located at the upper part of the sink 10.

In the prior art, as in the present invention, a device configured to allow purified water, hot water, purified water, and sterilized water to be discharged through a water discharge nozzle exposed to the outside of the sink was not presented.

However, in the present invention, the water outlet nozzle is configured so that cold, hot, purified water, and sterilized water can each be dispensed from one water outlet.

Even if the water outlet is configured to allow purified water, cold water, hot water, and sterilized water to flow out of the sink, if the water outlet nozzle is arranged so that purified water, cold water, hot water, and sterilized water do not flow out from the same point, the user cannot use vegetables, fruits, etc. When washing, first wash bacteria and dirt on the surface of vegetables and fruits under the sterilizing water outlet nozzle, then move the vegetables and fruits washed with sterilizing water below the outlet nozzle where purified water is discharged. There is no choice but to discharge the purified water and remove the sterilizing water on the vegetables and fruits through secondary washing. Therefore, as the primary cleaning and secondary cleaning are performed in different locations, the cleaning process is bound to be very cumbersome.

However, in the case of the present invention, the object to be cleaned is placed in one location, and sterilizing water is discharged through the second water discharge nozzle 220, and after primary cleaning, the first water discharge disposed above the second water discharge nozzle 220 is Purified water can be discharged through the nozzle 210 to complete purified water cleaning. Therefore, as the primary and secondary cleaning are performed in one place, the cleaning process can be greatly simplified.

Additionally, the water that users mainly use is purified water, hot water, and cold water. Sterilizing water can only be discharged under special circumstances. Therefore, in the present invention, the first water outlet nozzle 210 is disposed above the second water outlet nozzle 220 so that the user, in an unconscious state, selects the purified water outlet rather than the sterilizing water outlet.

Generally, when discharging sterilizing water and drinking it, hypochlorous acid is contained in the sterilizing water and is not beneficial to the user's health.

For this reason, in the present invention, a first water outlet nozzle 210 capable of dispensing cold, hot, and purified water is disposed on the upper side of the cylindrical body portion 230, and a second water outlet nozzle 220 through which sterilizing water is discharged is disposed at the lower part. did.

In addition, as shown in the drawing, the width and extended length of the first water outlet nozzle 210, through which purified water, hot water, and cold water are discharged, are wider and longer than the second water outlet nozzle 220, through which sterilizing water is discharged. . Accordingly, the second water outlet nozzle 220 through which sterilizing water is discharged can be concealed by the first water outlet nozzle 210.

In addition, in the prior art, an individual rotation structure of water outlet nozzles arranged up and down has been disclosed.

In the present invention, the upper water outlet nozzle and the lower water outlet nozzle have a structure that can be rotated separately. If the upper and lower water outlet nozzles do not rotate independently, but have a structure in which they rotate simultaneously, when dispensing hot, hot, and cold water from the upper water outlet nozzle, the lower water outlet nozzle may interfere with the water receiving container. there is. Accordingly, the two water outlet nozzles are arranged inside the cylindrical body portion 230 forming the outer shape, and each has a structure capable of rotating at a certain angle with respect to the cylindrical inner member 260 fixed to the sink. The first water outlet nozzle 210 and the second water outlet nozzle 220 may be designed to be rotatable by about 180 degrees.

In addition, in the case of the present invention, in order to prevent the two independently rotating water outlet nozzles 210 and 220 from randomly moving due to external interference, that is, to prevent undesired rotation by the user from occurring, a space is provided between the fixed body and the rotating body. A plurality of O-rings and each ring were placed.

For reference, the 'rotating body' may refer to the first water outlet nozzle 210 and the second water outlet nozzle 220. In addition, the 'fixer' may refer to the body portion 230, the inner member 260 described later, the first and second connecting members 214 and 215, and the coupling member 216 described later.

Each of the O-rings and each ring is made of an elastic material. And, by the action of the O-ring and the angle ring, the first water outlet nozzle 210 and the second water outlet nozzle 220 can be fixed to the position set by the user.

In particular, in the case of the O-ring, friction is formed in the circumferential direction, and in the case of each ring, friction is formed in the vertical direction by forming a predetermined height. Therefore, in the case of the first water outlet nozzle 210 and the second water outlet nozzle 220, shaking in the circumferential direction and the vertical direction (axial direction) can be prevented by the O-ring and the angle ring. Additionally, the O-ring and each ring can maintain the gap between each component. As friction is generated by the O-ring and the angle ring, the rotation of the first water discharge nozzle 210 and the second water discharge nozzle 220 proceeds smoothly, and the feeling of operation can be improved, and the first water discharge nozzle 210 and the second water discharge nozzle 220 The nozzle 220 may be fixed in a rotated position.

Additionally, the water outlet 200 may be provided with display and input means 240.

For example, the display and input means 240 may be provided as a touch screen. The display and input means 240 may include a water extraction button 244, an input unit for inputting various commands and settings, and a display unit for externally displaying various states.

As an example, the display and input means 240 may be provided on the upper surface of the first water outlet nozzle 210. Accordingly, the display and input means 240 may be located on the uppermost side of the water outlet 200.

In addition, the display and input means 240 provides hot water, purified water, cold water, and sterilizing water selection functions, a water discharge command function, a cold water and hot water temperature setting and display function, a drain selection function, a filter replacement cycle notification function, and a capacity of discharged water. Setting functions, discharge time setting functions for discharged water, etc. can be performed.

In addition, the sterilizing water selection button and the sterilizing water dispensing button are also provided on the upper side of the first water dispensing nozzle 210, so that the user can always recognize the water being dispensed.

The water outlet button 244 may be placed vertically above the first cock 219, which will be described later. That is, the water outlet button 244 may be formed at a position that overlaps the first cock 219 in the vertical direction.

Hereinafter, with reference to FIGS. 1 and 2, the process of dispensing purified water, cold water, hot water, and sterilizing water from the water dispensing device according to the present invention will be described.

The main body 100 receives raw water through a raw water pipe 20 connected to a water supply source such as a water pipe, a water tank, or an underground water pipe. A pressure reducing valve 21 is installed on the raw water pipe 20, and raw water passes through the pressure reducing valve 21 and is reduced to a set pressure.

Then, the reduced pressure raw water flows to the filter 120 through a pipe connecting the pressure reducing valve 21 and the filter 120. The raw water that passes through the filter 120 has foreign substances removed and becomes purified water. Then, by opening the inlet valve 35, the purified water that has passed through the filter 120 flows through the water outlet pipe 30 and passes through the flow sensor 36.

At this time, the flow rate detected by the flow sensor 36 can be used as data necessary for output control of the hot water tank 130 or the cold water tank 140.

Meanwhile, purified water that has passed through the flow sensor 36 flows along the water outlet pipe 30. And, it can be branched into a sterilized water side, a cold water-purified water side, and a hot water side.

First, the purified water branched into the cold water-still water side is again branched into the cold water side and the still water side and flows into the purified water pipe 31 and the cold water pipe 32, respectively. A purification valve 41 and a cold water valve 42 that control the flow of water are installed in the purification pipe 31 and the cold water pipe 32, respectively. The purified water valve 41 and the cold water valve 42 can be selected by the user's operation of selecting purified water or cold water, and the selected valve is opened by the user's operation of the water outlet button, so that purified water or cold water flows through the first water outlet nozzle 210. ) can be supplied to the user.

In detail, when the user requests cold water to be dispensed, the cold water valve 42 is opened. When the cold water valve 42 is opened as described above, purified water in the water outlet pipe 30 passes through the cold water pipe 32 and the cold water valve 42, and the water in the cold water pipe 32 is inside the cold water tank 140. passes through the cooling coil. The water flowing along the cooling coil exchanges heat with the cooling water inside the cold water tank 140 and is cooled into cold water. To this end, the coolant is continuously cooled to maintain the set temperature.

The cold water that has passed through the cold water tank 140 flows toward the water outlet 200 through the first common flow path 38 and the second common flow path 39 connected to the cold water pipe 32, and opens the first water outlet valve 61. ), it can be supplied to the first water outlet nozzle 210.

For reference, a compressor may be driven to cool the coolant. The operation of the compressor may be determined by a cold water temperature sensor provided inside the cold water tank 140. Accordingly, the cooling water can always maintain the set temperature, and the operation of the compressor can be adjusted for this purpose. The compressor is an inverter compressor, and the frequency can be adjusted in response to the required load, and the cooling capacity can be adjusted. That is, the compressor can be driven by inverter control and cool the cooling water with optimal efficiency.

Meanwhile, when the user requests purified water to be discharged, the purified water valve 41 is opened. When the purified water valve 41 is opened as described above, the purified water in the water outlet pipe 30 passes through the purified water pipe 31 and the purified water valve 41, and the first common passage 38 connected to the purified water pipe 31. And through the second common passage 39, it flows toward the water outlet 200. Then, it can be supplied to the first water outlet nozzle 210 through the first water outlet valve 61.

Meanwhile, when the user requests hot water to be dispensed, the hot water valve 43 is opened. When the hot water valve 43 is opened as described above, purified water in the water outlet pipe 30 passes through the hot water pipe 33 and the hot water valve 43. Additionally, the flow rate of water passing through the hot water pipe 33 can be adjusted by the flow control valve 37. While passing through the flow control valve 37 as described above, the purified water whose flow rate is adjusted passes through the hot water tank 130. And, in the process of passing through the hot water tank 130, it can be heated to a set temperature. The hot water tank 130 can be heated by induction heating, and for this, the output of the working coil included in the hot water tank 130 can be adjusted.

Purified water passing through the hot water tank 130 may be heated to a set temperature.

The hot water heated while passing through the hot water tank 130 flows toward the water outlet 200 through the second common passage 39 connected to the hot water pipe 33. Then, it can be supplied to the first water outlet nozzle 210 through the first water outlet valve 61.

Additionally, the hot water tank 130 may be further connected to the drain pipe 50. The drain pipe 50 allows steam generated when the water inside the hot water tank 130 to boil to be discharged to the outside. In addition, the drain pipe 50 is provided with a safety valve 51, and when a pressure exceeding a set pressure is generated, the safety valve 51 opens to discharge steam to the outside.

In detail, the safety valve 51 is used to discharge steam generated when hot water is heated in the hot water tank, and prevents the pressure inside the hot water tank from being excessively increased by steam. The safety valve 51 is configured to open at a set pressure, and may have various structures to enable smooth discharge of steam inside the hot water tank.

In the case of the drain pipe for discharging the steam, it may be formed separately from the drain pipe connected to the first water outlet valve 61 and the second water outlet valve 62. Additionally, in the case of the drain pipe for discharging the steam, it may be joined with the drain pipe connected to the first water outlet valve 61 and the second water outlet valve 62.

For reference, the hot water tank 130 can generate instantaneous hot water using an induction heating method. Also, if the water flow rate flowing into the hot water tank 130 is small due to the characteristics of instantaneous hot water, boiling may occur within the hot water tank 130.

In the case of the present invention, in order to prevent this, a temperature sensor is mounted on the heat sink of an element (eg, IGBT) included in the control module that supplies output to the hot water tank. And, when the temperature of the heat sink exceeds the set temperature (for example, 70°C), output supply to the hot water tank 130 is stopped.

As an example, the hot water tank 130 may include an induction heating assembly for making hot water and a control unit for controlling the operation of the induction heating assembly and the valve. The induction heating assembly and the control unit may be coupled to each other as a single module, and may be mounted inside the housing 110 in a combined state.

The induction heating assembly is designed to receive purified water supplied to the hot water tank 130 and heat it into hot water, and is configured to heat by an induction heating (IH) method. The induction heating assembly may include a working coil (not shown) for heating water passing through the hot water tank 130.

In the case of the water dispensing device according to the present invention as described above, cold water, purified water, and hot water can be discharged to the outside through one first water discharge nozzle 210.

For reference, the first water discharge valve 61 is equipped with a temperature sensor 68 (see FIG. 7b) that measures the temperature of cold water and hot water supplied through the second common pipe 39, and the temperature sensor is connected to the second common pipe 39. It detects the temperature of cold and hot water supplied from the pipe (39). And, when the temperature detected by the temperature sensor falls within the preset satisfactory range, the first water outlet valve 61 supplies cold water and hot water to the first water outlet nozzle 210, and the detected temperature falls within the preset satisfactory range. If not included, purified water, cold water, and hot water can be discharged to the drain pipe 50.

The temperature sensor 68 (see FIG. 7B) may be installed on the flow path of the first water outlet valve 61. In detail, the temperature sensor 68 (see FIG. 7b) may be installed to be exposed on the inlet side where cold/hot water flows.

Additionally, when dispensing hot or cold water, if the user presses the water dispensing button, the water in the pipe is unconditionally drained regardless of whether the temperature is satisfied, and then the discharging of hot and cold water can proceed.

In detail, when the user requests cold water discharge, the water (remaining water) filled between the cold water tank 140 and the first water discharge valve 61 is automatically drained through the drain pipe 50, and the discharge of the remaining water proceeds. Afterwards, the water in the cold water tank 140 may be supplied to the first water outlet nozzle 210 through the first water outlet valve 61. Therefore, only cold cold water can be supplied to the user.

In addition, when the user requests hot water discharge, the water (remaining water) filled between the hot water tank 130 and the first water discharge valve 61 is automatically drained through the drain pipe 50, and the discharge of the remaining water proceeds. Afterwards, the water in the hot water tank 130 may be supplied to the first water outlet nozzle 210 through the first water outlet valve 61. Therefore, only hot water can be supplied to the user.

On the other hand, in the case of purified water, the extraction of purified water can proceed immediately without draining the remaining water.

Meanwhile, when the user requests the discharge of sterilizing water, the sterilizing water valve 44 opens. When the sterilizing water valve 44 is opened as described above, the purified water in the water outlet pipe 30 passes through the sterilizing water pipe 34 and the sterilizing water valve 44, and the water in the sterilizing water pipe 34 is sterilizing water. It passes through module 150. Then, the sterilizing water generated in the sterilizing water module 150 flows toward the water outlet 200 along the sterilizing water pipe 34, passes through the second water outlet valve 62, and then through the second water outlet nozzle 220. Can be supplied externally.

Due to the nature of the under-sink water purifier, the distance between the main body unit 100 installed inside the sink and the water outlet unit 200 installed outside the sink is long, so the flow path connecting them is long. In addition, since the residual water remaining in the flow path affects the discharge temperature, the valves 61 and 62 are installed as close as possible to the water outlet 200 to selectively drain the residual water remaining in the flow path and then discharge the water. By achieving this, the temperature performance can be satisfied.

That is, according to the present invention, after water discharge, the residual water remaining in the long passage connecting the main body 100 and the water outlet 200 is drained from the valve 61 installed immediately below the water outlet 200, and then drained. The target water discharge temperature can be satisfied by discharging only the produced direct water (hot water or purified water) through the water discharge nozzle 210.

<Water outlet>

Figure 3 is a perspective view of the water outlet, which is a main component of the present invention. Figure 4 is an exploded perspective view of the water outlet part, which is a main component of the present invention. And, Figure 5a is a side view of the water outlet unit, which is a main component of the present invention. And, Figure 5b is an enlarged view of a portion of Figure 5a.

Referring to FIGS. 3 to 5B, the water outlet 200 of the present invention includes a cylindrical body 230 that extends in the vertical direction and has an outer shape in the axial direction, and an inner body disposed on the inside of the body 230. It is rotatably coupled to the member 260 and includes a first water discharge nozzle 210 and a second water discharge nozzle 220 disposed on the upper side of the body 230 to be spaced apart in the vertical direction.

In addition, the body 230 includes a first body 231 located below the second water discharge nozzle 220, and a second body 231 located between the first water discharge nozzle 210 and the second water discharge nozzle 220. It may include two bodies (232).

As an example, the first body 231 and the second body 232 may be provided in a hollow cylindrical shape with the upper and lower sides open, respectively. Additionally, the first body 231 and the second body 232 may have an outer diameter of the same size and an inner diameter of the same size. Additionally, the length of the first body 231 may be longer than that of the second body 232. In the case of the first body 231, a screw thread 231a may be formed on the lower inner peripheral surface for coupling with the penetrating member 250, which will be described later.

A display and input means 240 may be provided on the upper surface of the first water outlet nozzle 210 or the second water outlet nozzle 220. In addition, water outlet openings 211 and 221 open downward may be formed in the first water outlet nozzle 210 or the second water outlet nozzle 220, respectively.

In addition, the display and input means 240 include a plate 241 disposed at the uppermost side and exposed to the outside, a frame 242 disposed below the plate 241, and below the frame 242. It may include a PCB 243 that is disposed or accommodated inside the frame 242.

The plate 241 may be made of a transparent or translucent material. The PCB 243 may be equipped with various display means, including LED.

Additionally, the PCB 243 may be further equipped with switches, touch sensors, buttons, etc. Various devices may be installed in the PCB 243.

The frame 242 serves to protect various devices mounted on the PCB 243. A plurality of open holes may be formed in the frame 242 to expose the display means, switches, touch sensors, etc. to the plate 241.

As shown in FIG. 3, the display and input means 240 includes a hot water selection button, a capacity selection button, a purified water selection button, a sterilizing water selection button, a cold water selection button, a continuous water discharge selection button, and a water discharge selection button. You can.

The hot water selection button, capacity selection button, purified water selection button, sterilizing water selection button, cold water selection button, and continuous water selection button can be selected and activated only when the user presses and holds the button for more than 3 seconds.

Additionally, a temperature display unit may be formed above the hot water selection button. For example, the temperature display unit may display 40°C, 75°C, and 85°C. Accordingly, the user can select the temperature of the hot water being dispensed by pressing the hot water selection button and visually check the temperature of the selected hot water.

Additionally, a capacity display unit may be formed above the capacity selection button. For example, the capacity display unit may display 120ml, 500ml, and 1000ml. Therefore, the user can select the volume of water to be dispensed by pressing the volume selection button and visually check the selected water volume.

Hereinafter, a description will be given of how the user operates the dispensing of hot water, cold water, purified water, and sterilizing water using the display and input means 240 configured as described above.

First, when dispensing purified water, the user presses the purified water selection button and then presses the water dispensing button 244. Then, purified water is discharged.

Next, when dispensing cold water, the user presses the cold water selection button and presses the water dispensing button 244. Then, cold water comes out.

Next, when dispensing hot water, the user presses the hot water selection button and presses the water dispensing button 244. And, hot water comes out.

At this time, the user can select the temperature of hot water according to the number of times the hot water selection button is pressed. And, you can check the temperature of the selected hot water.

Next, when dispensing sterilizing water, the user presses the sterilizing water selection button and presses the dispensing button 244. Then, the sterilizing water is discharged.

When the hot water, cold water, purified water, and sterilizing water are dispensed, the user can select the capacity of the hot water, cold water, purified water, and sterilizing water to be dispensed through the capacity selection button.

For example, when the user presses the purified water button, hot water button, cold water button, or sterilized water button and then presses the water outlet button, purified water, hot water, cold water, or sterilized water of the default capacity is dispensed.

As another example, when the user presses the purified water button, hot water button, cold water button, or sterilized water button, selects the capacity by pressing the capacity button, and then presses the water discharge button, purified water, hot water, cold water, or sterilized water of the capacity selected by the user is dispensed.

As another example, in a situation where purified water, hot water, cold water, or sterilized water is dispensed, if the user presses the water dispenser button one more time, the dispenser may end.

The first water outlet nozzle 210 may have an open upper side and an inner space 210a that is concave from the upper side to the lower side. In addition, the frame 242 and the PCB 243 are stored in the inner space 210a formed in the first water discharge nozzle 210, and the plate 241 is located on the open upper side of the first water discharge nozzle 210. covers.

At this time, the plate 241 may be formed to be larger than the open upper area of the first water outlet nozzle 210. Accordingly, at least a portion of the boundary portion 241a of the plate 241 protrudes to the outside of the first water outlet nozzle 210, thereby preventing water or foreign substances from flowing between the plate 241 and the first water outlet nozzle 210. The phenomenon can be prevented. In other words, waterproof performance can be improved.

Additionally, the plate 241 may be formed to be larger than the upper surface of the frame 241. Accordingly, at least a portion of the boundary portion 241a of the plate 241 protrudes to the outside of the frame 241, and accordingly, even if water or foreign matter flows between the plate 241 and the first water outlet nozzle 210, the frame ( Water or foreign substances pass between the side walls (242g, see FIG. 22) of the frame 241, and as a result, water or foreign substances are prevented from flowing into the PCB disposed inside the side wall (242g, see FIG. 22) of the frame 241. You can. In other words, waterproof performance can be improved.

Additionally, a step 213a may be formed on the inside along the circumference of the open upper part of the first water outlet nozzle 210. And, the boundary portion 241a of the plate 241 may be seated on the step 213a. The depth of the step 213a may be equal to the thickness of the plate 241. In this case, the open top of the first water outlet nozzle 210 and the plate 241 may form a plane.

The first water outlet nozzle 210 forms a first insertion portion 212 extending downward to be inserted into the inside from the top of the second body 232 at a lower end of one side. The first insertion portion 212 may have a hollow cylindrical shape. The outer diameter of the first insertion portion 212 may be smaller than or equal to the inner diameter of the second body 232. The first insertion portion 212 may be formed opposite the water outlet 211. The outer diameter of the first insertion portion 212 may be smaller than the width of the first water outlet nozzle 210 (the length in the direction crossing the extension direction of the water outlet nozzle). Accordingly, a step 212a may be formed between the upper end of the first insertion part 212 and the lower end of the first water outlet nozzle 210. In addition, the outer surface of the rear end (right side in FIG. 4) of the first water discharge nozzle 210 and the outer surface of the second body 232 can be smoothly connected.

Additionally, the first insertion portion 212 may have an outer diameter that gradually decreases from the top to the bottom. Additionally, the second body 232 into which the first insertion portion 212 is inserted may have an inner diameter that gradually decreases from the top to the bottom. Accordingly, the operation of inserting the first insertion portion 212 into the second body 232 can be easily performed.

Meanwhile, a first cock 219 having a water outlet 211 is disposed at the tip of the first water outlet nozzle 210. The first cock 219 is connected to the first water discharge valve 61 and the second common pipe 39. Accordingly, cold water, hot water, and purified water that have passed through the first water discharge valve 61 can be supplied to the first cock 219 through the second common pipe 39. The second common pipe 39 serves to guide cold water, hot water, and purified water to the first water outlet valve 61, and at the same time directs the cold water, hot water, and purified water that passed through the first water outlet valve 61 to the first cock. You may also be directed to (219). In this case, the first water outlet valve 61 can be understood as being installed on the second common pipe 39.

Additionally, a first cock installation hole into which the first cock 219 is installed may be formed at the tip of the first water outlet nozzle 210. The first cock 219 may penetrate the first cock installation hole from the top to the bottom, and at least a portion may be exposed to the lower side of the first water outlet nozzle 210.

Meanwhile, the second water outlet nozzle 220 forms a second insertion portion 222 extending downward to be inserted inward from the top of the first body 231 at one lower end. The second insertion portion 222 may have a hollow cylindrical shape. The outer diameter of the second insertion portion 222 may be smaller than or equal to the inner diameter of the first body 231. The second insertion portion 222 may be formed opposite the water outlet 221. The outer diameter of the second insertion portion 222 may be smaller than the width of the second water outlet nozzle 220 (the length in the direction crossing the extension direction of the water outlet nozzle). Accordingly, a step 222a may be formed between the upper end of the second insertion portion 222 and the lower end of the second water outlet nozzle 220. In addition, the outer surface of the rear end (right side in FIG. 4) of the second water discharge nozzle 220 and the outer surface of the first body 231 can be smoothly connected.

Meanwhile, a second cock 229 having a water outlet 221 is disposed at the tip of the second water outlet nozzle 220. The second cock 229 is connected to the second water outlet valve 62 and the sterilizing water pipe 34. Accordingly, the sterilizing water that has passed through the second water outlet valve 62 can be supplied to the first cock 219 through the sterilizing water pipe 34. The sterilizing water pipe 34 serves to guide sterilizing water to the second water outlet valve 62, and can also guide the sterilizing water that has passed through the second water outlet valve 62 to the second cock 229. there is. In this case, the second water outlet valve 62 can be understood as being installed on the sterilizing water pipe 34.

In addition, a passage hole 220d open so that the second cock 229 is exposed downward may be formed in the lower frame 220a of the second water discharge nozzle 220, which will be described later.

The second cock 229 may pass through the through hole 220d from top to bottom, and at least a portion may be exposed to the lower side of the lower frame 220a.

The lower frame 220a may form an extension wall extending upward along the circumference. The extension wall is received inside the second water outlet nozzle 220.

Additionally, the width of the first water outlet nozzle 210 (length in the left and right directions based on FIG. 4) may be formed to be larger than the width of the second water outlet nozzle 220. In addition, the length of the first water outlet nozzle 210 (length in the extension direction of the water outlet nozzle) may be formed to be longer than the length of the second water outlet nozzle 220.

In detail, the water outlet 211 formed at the tip of the first water outlet nozzle 210 may be formed in a position that protrudes more than the tip of the second water outlet nozzle 220. Accordingly, water discharged from the first water outlet nozzle 210 can be supplied to the user without contacting the second water outlet nozzle 220.

That is, in a state where the first water outlet nozzle 210 and the second water outlet nozzle 220 are positioned side by side facing the same direction, the water outlet 211 of the first water outlet nozzle 210 is connected to the second water outlet nozzle ( 220) and may be formed in a position that does not overlap in the vertical direction.

In addition, as described above, since the second water outlet nozzle 220 is shorter in length and lower in height than the first water outlet nozzle 210, water can flow smoothly only inside the sink bowl 12 of the sink 10. . That is, because the space below the second water outlet nozzle 220 is narrow, sterilizing water can be easily discharged only when the second water outlet nozzle 220 is positioned toward the sink bowl 12 of the sink 10. Therefore, as much as possible, sterilizing water can be induced to flow only from inside the sink bowl 12. Furthermore, the rotation range of the second water discharge nozzle 220 may be limited to only be possible inside the sink bowl 12.

On the other hand, since the first water outlet nozzle 210 is longer and higher than the second water outlet nozzle 220, water can be freely dispensed even from outside the sink 10. In other words, the space below the first water outlet nozzle 210 is secured relatively wide, so that cold water, hot water, and purified water can be dispensed smoothly while a container such as a cup is placed below the first water outlet nozzle 210. there is.

In addition, the first water discharge nozzle 210 is larger in size and located higher than the second water discharge nozzle 220, so the user can more easily recognize the first water discharge nozzle 210 than the second water discharge nozzle 220. It is possible to dispense cold/hot/purified water while operating it more easily.

If you want to receive cold water, hot water, or purified water in a container such as a pot that is taller than the first water outlet nozzle 210, place a large container such as a pot into the sink bowl 12 and turn on the first water outlet nozzle 210. In a state where it is rotated so that it is located on the upper side of a large container such as a pot, water can be dispensed and cold water, hot water, and purified water can be received in a large container such as a pot.

The first water outlet nozzle 210 may be provided with curved portions 213 that are convex forward and backward at both ends, respectively. The second water outlet nozzle 220 may have a rounded tip at which the water outlet 221 is formed. Additionally, a cylindrical connection portion 223 may be formed at the rear end. The second insertion portion 222 is formed at the lower end of the connecting portion 223. The outer diameter of the connecting portion 223 may be formed to be larger than the width of the second water outlet nozzle 220.

The radius of curvature of the outer surface of the curved portion 213, the outer diameter of the connecting portion 223, and the outer diameters of the first body 231 and the second body 232 may be formed to be the same.

In addition, the first water outlet nozzle 210 and the second water outlet nozzle 220 can rotate freely while coupled to the sink 10. As an example, the first water outlet nozzle 210 and the second water outlet nozzle 220 may rotate in a range of 180 degrees. As another example, the first water discharge nozzle 210 can rotate in a range of about 180 degrees, and the second water discharge nozzle 220 can also rotate in a range of about 180 degrees.

The first water outlet nozzle 210, the second water outlet nozzle 220, and the body portion 230 are exposed to the outside of the sink. Therefore, it has no choice but to come into contact with water and rust. Accordingly, the first water outlet nozzle 210, the second water outlet nozzle 220, and the body portion 230 may be formed of a plastic material to prevent rust.

<Combined structure of outlet and sink>

Figure 6 is a cross-sectional view showing the joint portion of the water outlet and the sink. And, Figure 7a is a front view showing an example of a coupling structure between a water outlet and a sink. Figure 7b is a front view showing another example of the joint portion of the water outlet and the sink. Figure 7c is a diagram showing an example of operation of the first water outlet valve and the second water outlet valve.

Hereinafter, with reference to the drawings, the combined structure of the water outlet 200 and the sink 10, which are the main components of the present invention, will be described.

Referring to FIGS. 4 to 7C , the water outlet 200 according to the present invention may further include a penetrating member 250 that penetrates the sink 10.

The upper side of the penetrating member 250 is located at the upper part of the sink 10, and the lower side is located at the lower part of the sink 10. A screw 251 having a thread formed on an outer peripheral surface may be formed on the lower side of the penetrating member 250. The outer diameter of the penetrating member 250 may be expanded at the center to form a flange 252. The flange 252 may have a screw thread 252a formed on its outer peripheral surface, which is fastened to a screw thread 231a formed on the lower inner peripheral surface of the first body 231. The flange 252 of the penetrating member 250 is inserted into the inner bottom of the first body 231. And, by fastening the screw threads 231a and 252a, the penetrating member 250 and the first body 231 can be coupled.

Meanwhile, an extension portion 253 that has a smaller diameter than the flange 252 and extends upward may be formed on the upper side of the flange 252. Additionally, the penetrating member 250 may form a hollow portion 254 in the vertical direction. The hollow portion 254 penetrates the extension portion 253, flange 252, and screw 251.

Through the hollow part 254, the sterilizing water pipe 34 and the second common pipe 39 can pass, and the sterilizing water pipe 34 passing through the hollow part 254 is connected to the second water outlet nozzle 220. ) is inserted inside, and the second common pipe 39 passing through the hollow part 254 is inserted into the second water outlet nozzle 210.

Additionally, the extension portion 253 is accommodated inside the inner member 260, which will be described later. And, the inner member 260 is accommodated inside the first body 231. Therefore, when the pipes 34 and 39 are inserted inside the sink through the hollow portion 254 of the penetrating member 250, the pipes 34 pass through the hollow portion 254 without being caught by a step. 39) can be smoothly inserted into the first body 231 and the inner member 260.

Meanwhile, the inner member 260 has a hollow tube shape with the upper and lower ends open. And, the upper end of the inner member 260 is accommodated inside the second body 232 and the insertion portion 212. And, the lower end of the inner member 260 is accommodated inside the first body 231. And, the extension portion 253 of the penetrating member 250 is inserted into the lower end of the inner member 260.

The inner member 260 may be cylindrical. The inner member 260 is fixed to the sink, has a cylindrical shape, and serves as a rotation axis of the first water outlet nozzle 210 and the second water outlet nozzle 220. That is, the inner member 260 maintains a fixed state when the first water discharge nozzle 210 and the second water discharge nozzle 220 rotate. The inner member 260 may be formed of a rigid material. The inner member 260 may be made of a metal material. The inner member 260 may be made of aluminum.

A hole of the same size or larger than the screw 251 of the penetrating member 250 is formed in the sink 10. And, the screw 251 of the penetrating member 250 penetrates the sink 10 through the hole. Accordingly, the screw 251 of the penetrating member 250 is exposed at the bottom of the sink 10. Then, the screw 251 of the penetrating member 250 exposed to the lower side of the sink 10 is fastened with the nut member 270. Accordingly, the penetrating member 250 can be fixed to the sink 10.

The extension 253 forms a plurality of grooves 255 (see FIG. 4) on the outer peripheral surface, and a groove 268 (see FIG. 4) on the inner peripheral surface at the lower side of the inner member 260 into which the extension 253 is inserted. can be formed.

Additionally, a coupling piece 298 may be inserted between the grooves 255 and 268. The coupling piece 298 may be formed of an elastic material.

The grooves 255 and 268 and the coupling pieces 298 may each be provided as a pair and may be formed in opposing positions. That is, the grooves 255 and 268 and the coupling piece 298 may be formed at positions symmetrical with respect to the central axes of the penetrating member 250 and the inner member 260.

With the configuration of the grooves 255 and 268 and the coupling piece 298 as described above, the gap between the extension part 253 and the inner member 260 is secured, and the coupling force between the extension part 253 and the inner member 260 is secured. It can be.

Additionally, a sealing O-ring 299 may be inserted between the flange 252 of the penetrating member 250 and the upper surface of the sink 10. To this end, a groove into which the sealing member 299 is inserted may be formed concave upward at the outer lower end of the flange 252 of the penetrating member 250.

With the configuration of the sealing O-ring 299, the gap between the flange 252 of the penetrating member 250 and the sink 10 is maintained, and the bonding force between the flange 252 of the penetrating member 250 and the sink 10 is increased. It can be improved. And, as friction occurs between the penetrating member 250, the inner member 260, the first body 231, and the sink 10, the penetrating member 250, the inner member 260, and the first body 231 can be more securely fixed to the sink 10.

Figure 8 is a view from below showing a state in which the nut member and the screw are fastened. Figure 9 is a side view of the state in which the nut member and the screw are fastened.

Referring to Figures 8 and 9, threads are formed on the inner peripheral surface of the nut member 270 to be fastened to the screw 251.

Additionally, the nut member 270 may have a body 274 in the shape of a prismatic column. As an example, the body 274 may be formed in the shape of a hexagonal pillar.

Additionally, the nut member 270 may form a fastening hole 271 with a thread formed on its inner peripheral surface. Additionally, the nut member 270 may form an extension 273 that extends into a disk shape at the top adjacent to the sink 10. A plurality of segments in the form of protrusions may be formed on the upper surface of the expansion portion 273 to improve fixing force.

Additionally, the nut member 270 may form a pair of locking portions 275 extending along the radial direction of the extension portion 273 on both opposing sides of the body 274. The catching portion 275 may extend from the outer surface of the body 274 to the boundary of the extension portion 273.

As described above, if the body of the nut member 270 is provided in the shape of a square pillar, including a hexagonal pillar, it is easy to rotate the nut member 270 from the side using a tool such as a spanner or pliers. In addition, when the locking portion 275 is formed on the nut member 270 as described above, hand slippage is prevented and it is easy for the user to hold the body 274 with his hand and rotate the nut member 270. In addition, when the expansion portion 273 is formed as described above, the contact area with the sink 10 increases, and the nut member 270 can be more stably coupled to the sink 10. Additionally, the coupling force between the water outlet 200 and the sink 10 can also be improved.

Additionally, the fastening force can be strengthened if the user rotates the nut member 270 by hand and rotates the nut member 270 by one or two turns using a tightening means.

For reference, a structure for fixing a faucet to a sink has been disclosed in Registered Utility Model No. 0276610 (hereinafter referred to as prior literature).

In detail, in the prior literature, a fastening pipe with threads formed on the outer peripheral surface is formed at the bottom of the faucet to which the cold and hot water pipes are connected, and after the fastening pipe penetrates the fastening hole of the sink, a fastening nut is attached to the fastening pipe at the bottom of the sink. A technology for fixing a faucet to a sink has been disclosed.

At this time, the lower space of the sink is narrow, so assembly of the fastening nut may be difficult. In addition, in the case of a structure in which the water outlet nozzles 210 and 220 rotate, as in the present invention, the nut member 270 may be loosened due to repeated rotation of the water outlet nozzles 210 and 220, so the nut member ( 270) needs to be concluded.

In the present invention, in order to solve this problem, the shape of the nut member 270 is formed by integrally forming a disk-shaped expansion portion 273 and a hexagonal pillar-shaped body 274. In addition, straight locking portions 275 were formed symmetrically on both sides of the hexagonal column-shaped body 274.

In addition, the locking portion 275 overlaps the virtual extension lines EL1 and EL2 of the inclined surfaces 275b and 274c formed on both sides adjacent to one surface 274a of the body 274 to which the locking portion 275 is connected. , It is formed so as not to protrude beyond the virtual extension lines EL1 and EL2.

Accordingly, when rotating the body portion 274 using tools for fastening the nut member 270, such as spanners or pliers, interference with the locking portion 275 can be prevented.

Additionally, the locking portion 275 may be formed only on two sides of the body 274. The reason is that the nut member 270 can be turned by inserting a wrench, etc., through the remaining four sides on which the locking portion 275 is not formed.

When explaining the fastening process of the penetrating member 250 and the nut member 270, first, the user inserts the penetrating member 250 into the hole 13 formed in the sink 10 (see FIG. 7A) from the upper side of the sink 10. Insert and fasten the nut member 270 to the screw 251 exposed on the lower side of the sink 10. At this time, even if the user's view is blocked, the user can hold the locking portion 275 with his hand and easily initially fasten the nut member 270 to the screw 251. At this time, since the locking portion 275 is formed to intersect the rotation direction of the nut member 270, the user can easily rotate the nut member 270 by holding the locking portion 275 with his hand.

In addition, when the primary fastening is completed as described above, a separate tool can be inserted into the body 274 and the nut member 270 can be secondarily fastened to the screw 251 by turning the tool. Accordingly, the nut member 270 can be more easily and firmly fastened to the screw 251.

In addition, in order to improve the fastening force of the penetrating member 250, the nut member 270, and the sink 10, a rubber washer 276 is installed between the bottom of the sink 10 and the extended portion 273 of the nut member 270. , see FIG. 7A) may be inserted.

Meanwhile, the hole 13 (see FIG. 7A) formed in the sink 10 is formed smaller than the diameter of the flange 252.

Additionally, the diameter of the flange 252 is smaller than the inner diameter of the first body 231 and the inner diameter of the inner member 260. Accordingly, the flange 252 can be accommodated inside the first body 231 and the inner member 260.

Meanwhile, the first water outlet valve 61 and the second water outlet valve 62 may be installed inside the water outlet unit 200. In detail, the first water outlet valve 61 and the second water outlet valve 62 may be installed inside the first body 231 or the second body 232.

As another example, the first water outlet valve 61 and the second water outlet valve 62 may be installed outside the water outlet unit 200. In detail, the first water outlet valve 61 and the second water outlet valve 62 may be installed on the outside of the first body 231 or the second body 232.

In this case, the first water outlet valve 61 and the second water outlet valve 62 may be installed at the lower part of the sink 10.

The water outlet unit 200 may further include a bracket 280 on which the first water outlet valve 61 and the second water outlet valve 62 are installed. The bracket 280 includes a horizontal portion 281 inserted between the lower surface of the sink 10 and the nut member 270, and a vertical portion 282 extending in the vertical direction from one side of the horizontal portion 281. may include. A hole through which the screw 251 of the penetrating member 250 penetrates may be formed in the horizontal portion 281. The screw 251 sequentially penetrates the hole 13 of the sink 10 (see FIG. 7A) and the hole of the horizontal part 281, and then is inserted into the nut member 270 and the nut member 270 at the lower side of the horizontal part 281. It can be concluded.

A reinforcing rib 283 may be formed on the inner surface of the corner defined by the horizontal portion 281 and the vertical portion 282.

Additionally, a first water outlet valve 61 and a second water outlet valve 62 may be coupled to the vertical portion 282.

In addition, the vertical portion 282 will be provided with a plurality of pipe fixing hooks 285 for fixing various pipes 34 and 39 in a gripping manner and valve fixing hooks 286 for fixing the valves 61 and 62. You can.

Additionally, the vertical portion 282 may form an extension wall in a direction perpendicular to the vertical portion 282 on one or both sides. In addition, a pipe passage hole or pipe passage groove 288 through which the various pipes 34 and 39 pass may be formed in the extension wall 287.

Meanwhile, the first water outlet valve 61 and the second water outlet valve 62 may be arranged in the vertical portion 282 in the vertical direction. As another example, the first water outlet valve 61 and the second water outlet valve 62 may be disposed in the vertical portion 282 in the horizontal direction. As another example, the first water outlet valve 61 and the second water outlet valve 62 may be arranged to be offset from each other in the vertical portion 282. That is, the first water outlet valve 61 and the second water outlet valve 62 may be disposed at the upper end of one side and the lower end of the other side of the vertical portion 282, respectively.

Referring to FIG. 7A, the first water outlet valve 61 and the second water outlet valve 62 may be arranged to allow cold, hot, purified water, and sterilizing water to flow in from the bottom to the top. In addition, cold, hot, purified water, and sterilizing water are discharged from the bottom to the top toward the water outlet nozzles (210, 220), and the drain may proceed from the top to the bottom.

Referring to FIG. 7B, the first water outlet valve 61 and the second water outlet valve 62 may be arranged to allow cold, hot, purified water, and sterilizing water to flow in from right to left. In addition, cold, hot, purified water, and sterilizing water are discharged from the bottom to the top toward the water outlet nozzles (210, 220), and the drain may be arranged to proceed from left to right.

Hereinafter, with reference to FIG. 7C, the opening and closing operations of the first water outlet valve 61 and the second water outlet valve 62 will be described.

The first water outlet valve 61 and the second water outlet valve 62 can be opened and closed by a plunger 66 that moves up and down by an electric signal.

First, as shown in (a) of FIG. 7C, when the plunger 66 rises, the flow path connecting the inlet 63 through which water flows in and the outlet 64 through which water discharges is opened.

At this time, the inlet 63 and the outlet 64 are formed at opposite positions. That is, it is formed on both sides based on the plunger 66. Accordingly, the water flowing into the inlet 63 flows out through the outlet 64, and the water flowing out through the outlet 64 is supplied to the water outlet nozzles 210 and 220.

At this time, as the plunger 66 rises, the flow path connecting the drain 65 and the inlet 63 is shielded.

The drain 65 may be arranged in a vertical direction (based on FIG. 7C) relative to the inlet 63.

A sealing portion 67 may be formed on the lower side of the plunger 66 to prevent water leakage.

Meanwhile, the temperature sensor 68 may be installed to be exposed on the inlet 63 side.

The temperature sensor 68 may be installed to be exposed between the inlet 63 and the branch point 69 opened and closed by the plunger 66, based on the flow of water.

On the other hand, as shown in (b) of FIG. 7C, when the plunger 66 descends, the flow path connecting the inlet 63 through which water flows in and the outlet 64 through which water is discharged is blocked.

Additionally, as the plunger 66 descends, the flow path connecting the drain 65 and the inlet 63 is opened.

Accordingly, water flowing into the inlet 63 flows out to the drain hole 65, and water flowing out of the drain hole 65 is drained.

For reference, the temperature sensor described above and the temperature sensor described later may be installed on the inlet 63 side. Additionally, based on the temperature sensor described above and the direction in which water flows, which will be described later, a temperature sensor may be installed between the inlet 63 and the plunge 66.

Due to the nature of the under-sink water purifier, a water outlet nozzle that comes out of the sink is required.

In the case of the present invention, the water outlet nozzle for dispensing drinking water (cold, hot, purified water) and the water outlet nozzle for dispensing sterilizing water are distinguished, but each water outlet nozzle is implemented as a single body and can be rotated independently.

In addition, in the case of the first water outlet nozzle, touch input and display output were implemented.

As each water outlet nozzle rotates left and right as described above, user convenience can be maximized.

<Structure to limit the rotation angle of the water outlet nozzle>

Figure 10 is a cross-sectional view of the first water discharge nozzle, which is a component of the present invention. And, FIG. 11 is an enlarged view of a portion of FIG. 10. And, Figure 12a is a view from above showing the display and input means separated from the first water outlet nozzle. And, Figure 12b is an enlarged view of a portion of Figure 12a. Figure 13 is a diagram showing a state in which the first connection member, the second connection member, and the coupling member, which are some components of the present invention, are combined.

Referring to Figures 10 to 13, the rotation angle of the first water outlet nozzle 210 may be limited. For example, the first water outlet nozzle 210 may rotate in a range of 90 degrees to 270 degrees. For this purpose, a rotation limiting structure that limits the rotation angle of the first water discharge nozzle 210 is required.

In the case of the first water discharge nozzle 210, a first stopper 2111 protruding into the inner hollow of the insertion portion 212 may be formed at the rear end of the lower frame 2110 forming the bottom surface. The first stopper 2111 protrudes to the right with respect to FIG. 10 .

And, inside the insertion portion 212, there is a first connection member 214 in the shape of a ring that does not rotate together and maintains a fixed state when the first water discharge nozzle 210 rotates. can be formed. Rotation limiting protrusions 214a protruding upward may be formed on both sides of the first connection member 214 to limit rotation of the first stopper 2111.

The pair of rotation limiting protrusions 214a may form a straight line (refer to the dotted line in FIG. 13) on the surface facing the first water discharge nozzle 210, forming an angle of 180 degrees. Accordingly, the rotation angle of the first stopper 2111 is limited to 180 degrees by the pair of rotation limiting protrusions 214a, and as a result, the rotation angle of the first water discharge nozzle 210 may be limited to 180 degrees. As described above, when the first water discharge nozzle 210 rotates, the first stopper 2111 is caught on the pair of rotation limiting protrusions 214a so that the rotation range of the first water discharge nozzle 210 is limited. , The first stopper 2111 may be formed so that at least a portion of the first stopper 2111 overlaps a pair of rotation limiting protrusions 214a in the horizontal direction.

Additionally, the first connecting member 214 is fixed to the upper side of the inner member 260. Accordingly, the first connection member 214 can remain fixed together with the inner member 260. That is, when the first water outlet nozzle 210 and the second water outlet nozzle 220 rotate, the inner member 260 and the first connection member 214 do not rotate and remain fixed. In detail, the inner member 260 does not rotate together with the rotation of the first water outlet nozzle 210 and the second water outlet nozzle 220, but maintains a fixed state. And, the first connecting member 214 fixed to the inner member 260 remains fixed to the inner member 260.

The first connecting member 214 forms a flange-shaped pressing portion 214b extending outward at the top. The upper end of the pressing portion 214b is located below the first stopper 2111. In addition, the rotation limiting protrusion 214a is formed to protrude upward from the pressing portion 214b, and the first stopper 2111 is attached to the rotation limiting protrusion 214a when the first water discharge nozzle 210 rotates. As it gets stuck, the rotation angle may be limited. The first stopper 241 may rotate while being supported in contact with the upper surface of the pressing portion 214b.

In addition, between the first connecting member 214 and the insertion portion 212 of the first water discharge nozzle 210, there is a second O-ring ( 292) can be inserted. The second O-ring 292 can be inserted and fixed between the pressing portion 214b of the first connecting member 214 and the support protrusion 212b protruding inward on the inner surface of the insertion portion 212. there is. And, as the support protrusion 212b is fixed to the lower side of the pressing part 214b, the first water discharge nozzle 210 can be fixed without being separated upward.

Additionally, the gap between the first connection member 214 and the insertion portion 212 of the first water discharge nozzle 210 can be maintained by the second O-ring 292. Additionally, shaking of the first water outlet nozzle 210 can be prevented by the second O-ring 292. Additionally, the gap between the first connection member 214 and the insertion portion 212 of the first water outlet nozzle 210 can be maintained by the second O-ring 292. In addition, as friction is generated by the second O-ring 292, the rotation of the first water discharge nozzle 210 proceeds smoothly, and the feeling of operation can be improved, and the first water discharge nozzle 210 can be fixed in the rotated position. You can.

Meanwhile, the first connecting member 214 may be coupled to the inner member 260 through a second connecting member 215 of a ring shape.

The lower end of the second connecting member 215 may be inserted into the upper end of the inner member 260. Additionally, a plurality of fixing hooks 215a may be arranged to be spaced apart in the circumferential direction on the outer surface of the second connecting member 215. Additionally, a plurality of fixing holes 264 into which the fixing hook 215a is inserted may be formed in the inner member 260 to be spaced apart in the circumferential direction. The second connecting member 214 may be formed at the top with a seating portion 215b extending outward to be seated on the upper end of the inner member 260.

Additionally, a plurality of slits 215c that are concavely cut from the bottom to the top may be formed in the second connecting member 215, spaced apart along the circumferential direction.

The slits 215c may be formed in multiple numbers. Additionally, a deformation portion 215f that is deformed in the radial direction so as to shrink toward the center may be formed between the slits 215c. Additionally, a fixing hook 215a is formed on the outer surface of the deformable portion 215f. Additionally, the fixing hook 215a may be formed so that the height protruding from the bottom to the top gradually increases. Accordingly, the outer surface of the fixing hook 215a is formed to be inclined. As described above, the fixing hook 215a is inserted into the fixing hole 264 formed on the upper side of the inner member 260, and accordingly, the second connecting member 215 and the inner member 260 are coupled.

Meanwhile, a cut hole 265 (see FIG. 4) may be formed in the inner member 260 to communicate with the upper end of the inner member 260 and the fixing hole 264 and open it. The diameter of the fixing hole 264 may be larger than the width of the cutting hole 265. Additionally, the second connecting member 215 may form a hole insertion protrusion 215g to be inserted into the cutting hole 265 on the upper side of the fixing hook 215a. Accordingly, as the hole insertion protrusion 215g is inserted into the cut hole 265, the coupling force between the second connection member 215 and the inner member 260 can be further improved.

Additionally, a guide groove 215e may be formed in the seating portion 215b of the second connecting member 215 at a position corresponding to the fixing hook 215a and the hole insertion protrusion 215g. Therefore, when assembling the second connecting member 215 to the inner member 260, with the guide groove 215e and the fixing hole 264 aligned from the outside, the second connecting member 215 is connected to the inner member ( By pressing toward the inside of 260, the second connection member 215 and the inner member 260 can be coupled.

The first connection member 214 and the second connection member 215 may be formed integrally, if necessary.

Additionally, the first connection member 214 and the second connection member 215 may be provided as separate components and then combined in various ways.

The first connection member 214 and the second connection member 215 may be coupled through a separate coupling member 216.

For example, the coupling member 216 includes a fastening boss 214c protruding from the inner surface of the first connection part 214, a fastening boss 215d protruding from the inner surface of the second connection part 215, and a bolt, A fastener 216a fastened with a screw or the like may be formed. When viewed from the top, the coupling member 216 may have a 'ㄷ' shape, including fastening bars that are parallel to each other and a connecting bar connecting one side of the fastening bar. In addition, when viewed from the side, the coupling member 216 extends vertically downward from a horizontal portion located above the first connecting member 214 and one side of the horizontal portion to define the hollow of the inner member 260. It may have an 'ㄱ' shape, including a vertical wall 216c dividing it into a plurality of spaces.

Two or more fastening bosses 214c and 215d are formed to protrude at mutually symmetrical positions on the inner surfaces of the first and second connecting members 214 and 215, respectively, and the fastener 216a Can be formed one by one on each fastening bar of the coupling member 216, corresponding to the fastening bosses 214c and 215d.

The coupling member 216 may include a horizontal portion on which the fastener 216a is formed, and a vertical wall 216c extending vertically downward from one side of the horizontal portion.

Additionally, a reinforcing rib 216f protruding outward may be formed on one side of the vertical wall 216c along the longitudinal direction (up and down direction based on FIG. 13). The reinforcing ribs 216f may be disposed on both sides. At least two reinforcing ribs 216f may be provided. Additionally, the reinforcing rib 216f may be formed in the space S1 on one side partitioned by the vertical wall 216c. Through the space S1, wires connected to the display and input means 240 may pass. This space (S1) may also be called the first hollow.

Meanwhile, guiding ribs 216e protruding from each other on the other side of the vertical wall 126c may be formed along the longitudinal direction (up and down direction based on FIG. 13).

The guide ribs 216e are formed, and a space is formed between the guide ribs 216e. In addition, the second common pipe 39 is guided into the space between the guide ribs 216e and can be arranged in the vertical direction and then connected to the first water outlet nozzle 210.

As another example, the coupling member 216 has a protruding fastening groove 214d formed concavely inward on the inner surface of the first connecting member 214 or a protruding fastening groove 214d formed concave inward on the inner surface of the second connecting member 215. Fastening protrusions 216b protruding outward to be inserted into fastening grooves (not shown) may be formed on both sides.

The fastening grooves 214d may be formed on both sides of the inner surface of the first connecting member 214 to face each other. The center line of the fastening groove 214d may be 180 degrees parallel to the direction in which the fastening protrusion 216b is inserted.

Additionally, the fastening protrusions 216b may be formed on both sides of the coupling member 216, and the center line parallel to the direction in which they are inserted into the fastening groove 214d may form 180 degrees.

The vertical wall 216c of the coupling member 216 is formed to cross the hollow of the first connecting member 214, dividing the hollow of the first connecting member 214 into two spaces S1 and S2. It can be divided. In addition, as the spaces S1 and S2 are divided, the space S2 located relatively close to the water outlet 211 can be used as a space dedicated to the second common pipe 39. Additionally, the remaining space S1 can be used as a dedicated space through which wires connected to the display and input means 240 pass. Accordingly, problems such as wire twisting and entanglement can be prevented.

The lower end 216d of the vertical wall 216c extends to the second water outlet nozzle 220, divides the sterilizing water pipe 34 from the electric wire, and is bent to be connected to the second water outlet nozzle 220. It may also function to press the bent part of the sterilizing water pipe (34).

The first connection member 214 and the second connection member 215 may be stacked in the vertical direction.

In addition, the first connection member 214 and the second connection member 215 may be coupled into one body through a coupling member 216 and a screw. That is, the first connection member 214 and the second connection member 215 are combined with the coupling member 216 into one module.

Thereafter, the first connecting member 214, the second connecting member 215, and the connecting member 216 combined into one module are inserted and coupled to the upper side of the inner member 260.

In addition, the lower frame 2110 forming the bottom surface of the first water outlet nozzle 210 has a hook projection 217 for fixing the second common pipe 39 disposed inside the first water outlet nozzle 210. can be formed.

One side of the hook protrusion 217 is fixed to the lower frame 2110, the other side is spaced apart from the lower frame 2110, and is bent into a hook shape. The saik hut process (217) has a convex shape toward the upper side. The hook protrusion 217 may be formed at a plurality of positions on the lower frame 2110. Additionally, the height of the hook protrusion 217 may be formed in various ways. Additionally, the hook protrusions 217 may be disposed in positions that are offset from each other on the lower frame 2110. When a plurality of hook projections 217 are provided, one hook projection 217a may be formed to be open on one side, and the other hook projection 217b may be formed to be open on the other side.

In addition, a first cock 219 through which cold/hot/purified water is discharged is connected to the end of the second common pipe 39. The first cock 219 can be fixed to the lower frame 2110 by separate fixing brackets 219a coupled to the lower frame 2110 on both sides. The fixing bracket 219a has an overall 'V' or 'U' shape. And, both ends are fixed to the lower frame 2110 by screwing or the like. When replacing the caulk and pipe, the screw of the fixing bracket 219a may be unscrewed.

The first cock 219 extends in the horizontal direction and has an inlet 219b connected to the second common pipe 39, and an outlet 219c that communicates with the inlet 219b and extends in the vertical direction. can be formed. The second common pipe 39 and the inlet 219b have a separate fixing cap 218 that pressurizes the second common pipe 39 with the second common pipe 39 inserted on the outside of the inlet 219b. It can be fixed by .

Additionally, the second common pipe 39 and the inlet 219b may be joined by heat fusion. In this case, when replacing the second common pipe (39), the entire first cock (219) may be replaced.

For example, the first cock 219 and the second common pipe 39 can be installed and separated from the first water outlet nozzle while being integrally coupled.

When installing, the display and input means 240 forming the upper surface of the first water outlet nozzle 210 are separated. Then, the upper side of the first water outlet nozzle 210 is opened. Then, the first cock 219 and the second common pipe 39 are inserted from the upper side to the lower side of the first water outlet nozzle 210, and the second common pipe 39 is inserted into the inner member 260. Then, the display and input means 240 is coupled to the first water outlet nozzle 210.

Conversely, when separating, the display and input means 240 forming the upper surface of the first water outlet nozzle 210 are separated. Then, the upper side of the first water outlet nozzle 210 is opened. Then, the first cock 219 and the second common pipe 39 are pulled out from the lower side of the first water outlet nozzle 210 to the upper side. Then, the second common pipe (39) is pulled upward. At this time, the second common pipe 39 is separated from the first water outlet valve.

Thereafter, after installing the new first cock 219 and the second common pipe 39, the display and input means 240 are coupled to the first water outlet nozzle 210.

The display and input means 240 can be coupled to and separated from the first water discharge nozzle 210 while being coupled into a single module by screwing, gluing, etc.

In the present invention, hot water, cold water, and purified water can be dispensed by the user's selection through the first water outlet nozzle disposed at the top.

For this purpose, a display and input means 240 for selecting the type of water is formed in the first water outlet nozzle.

In addition, in order to control the display and input means 240, a board (PCB) must be mounted inside, and a plurality of power lines or signals must be connected to the water purifier body located below the sink along the pipe.

In this structure, when the first water outlet nozzle at the top and the second water outlet nozzle at the bottom are each rotated, twisting and entanglement of the wires may occur due to the rotation of the two nozzles, resulting in a short-circuit phenomenon in the power line and resulting malfunctions. . To solve this problem, a coupling member 216 is formed between the first water outlet nozzle at the top and the second water outlet nozzle at the bottom. The coupling member 216 divides the inner space of the inner member 260 into two. In addition, one space is used as a space for passing power lines and various electric wires. This can also be called the first hollow. And, the remaining space can be used as a space for passing the water outlet pipe. This can also be called the second hollow.

In addition, between the outer surface of the inner member 260 and the insertion part 212 of the first water discharge nozzle 210, a first O-ring 291 is provided to prevent water leakage, prevent shaking, generate rotation resistance, and improve operating sensitivity. This can be inserted. A first insertion groove 261 that is concave inward to allow the first O-ring 291 to be inserted may be formed in the inner member 260 along the circumferential direction.

Additionally, the distance between the inner member 260 and the insertion portion 212 of the first water discharge nozzle 210 can be maintained by the first O-ring 291. Additionally, shaking of the first water outlet nozzle 210 can be prevented by the first O-ring 291. Additionally, the gap between the inner member 260 and the insertion portion 212 of the first water discharge nozzle 210 can be maintained by the first O-ring 291. In addition, as friction is generated by the first O-ring 291, the rotation of the first water discharge nozzle 210 proceeds smoothly, and the feeling of operation can be improved, and the first water discharge nozzle 210 can be fixed in the rotated position. You can.

In addition, a first angle ring is formed between the outer surface of the inner member 260 and the inner surface of the insertion part 212, and/or between the outer surface of the insertion part 212 and the inner surface of the second body 232. (295) may also be inserted. The first angle ring 295 may be disposed lower than the first O-ring 291 inserted into the first insertion groove 261.

By the first O-ring 291, the gap between the inner member 260, which is a fixed body, and the insertion part 212, which is a rotating chain, is maintained, and when the insertion part 212 rotates, the inner member 260 and the insertion part 212 ), rotational resistance may occur. Additionally, friction occurs in the axial direction, so that the first water discharge nozzle 210 can be pulled out so that it does not shake in the axial direction.

Additionally, the distance between the second body 232 and the insertion portion 212 can be maintained constant by the first angle ring 295. For reference, the first angle ring 295 may have a ring shape and its cross-section may be square.

Figure 14 is a cross-sectional view of the second water discharge nozzle, which is a component of the present invention. And, Figure 15 is a view of the second water outlet nozzle with the upper frame removed, viewed from above. And Figure 16 is a view of the second water outlet nozzle viewed from below. Figure 17 is a cross-sectional view showing a state in which the sterilizing water pipe is fixed between the upper frame and the lower frame. FIG. 18 is an enlarged view of a portion of FIG. 17.

Referring to FIGS. 14 to 18 , like the first water outlet nozzle 220, the rotation angle of the second water outlet nozzle 220 may be limited.

For example, the second water outlet nozzle 220 may rotate in a range of 90 degrees to 270 degrees.

For this purpose, a rotation limiting structure that limits the rotation angle of the second water discharge nozzle 212 is required.

In the case of the second water outlet nozzle 220, the second stopper 224 may be formed at the rear end (right side in FIG. 14) of the lower frame 220a forming the bottom surface of the second water outlet nozzle 220.

Additionally, a rotation limiting hole 262 into which the second stopper 224 is inserted is formed in the inner member 260. The rotation limiting hole 262 is open along the circumferential direction of the inner member 260 and may be open by 120-180 degrees. Accordingly, the second stopper 224 inserted into the rotation limiting hole 262 can be rotated only in the range of 120-180 degrees, and as a result, the rotation angle of the second water discharge nozzle 220 may be limited to 120-180 degrees. As described above, when the second water discharge nozzle 220 rotates, the inner member 260 remains fixed.

In addition, a fourth O-ring 294 can be inserted between the rear end of the upper frame 220b (right side in FIG. 14) and the outer surface of the bottom of the second body 232 to prevent water leakage and generate rotation resistance. there is. In addition, a side wall 220c is formed at the rear end of the upper frame 220b to support the fourth O-ring 294 in the horizontal direction, and an extension surface extending in the horizontal direction is formed at the bottom of the side wall 220c. can do. Additionally, a side groove 232a may be formed at the bottom of the second body 232 to be concave inward to accommodate the fourth O-ring 294. A corner groove may be formed on the upper side of the side groove 232a to accommodate a portion of an edge of the upper frame 220b.

In addition, the lower frame 220a forming the bottom surface of the second water discharge nozzle 220 and the upper frame 220b forming the upper surface of the second water discharge nozzle 220 each have a second water discharge nozzle 220. ) Supporting protrusions (225,226) are formed protruding inside. The support protrusion 226 of the lower frame 220a protrudes upward, and the support protrusion 225 of the upper frame 220b protrudes downward. Each of the support protrusions 225 and 226 is formed at a position facing each other, and the ends of each support protrusion 225 and 226 may be close to or in contact with each other.

Referring to Figure 17, the support protrusions 225 and 226 may be formed on both sides. In addition, the sterilizing water pipe 34 disposed inside the second water outlet nozzle 220 may pass between the support protrusions 226 and be fixed between the support protrusions 226.

Meanwhile, referring to FIG. 18, fastening holes 225a and 226a are formed in each of the support protrusions 225 and 226, and each hole 225a and 226a can be fastened with bolts, screws, etc. At this time, the upper frame 220b and the lower frame 220a can be fastened by fastening screws, etc. from below to the upper side of the second water discharge nozzle 220.

The upper frame 220b may form a side wall extending downward along the circumference of the upper surface, and the lower frame 220a may form a side wall extending upward along the circumference of the lower surface. The upper frame 220b may form a concave space upward, and the lower frame 220a may form a concave space downward. The side wall of the lower frame 220a is received inside the side wall of the upper frame 220b.

Accordingly, the lower frame 220a forming the bottom surface of the second water outlet nozzle 220 and the upper frame 220b forming the upper surface of the second water outlet nozzle 220 can be integrally fixed. The fastening hole 226a may be formed to penetrate the lower frame 220a. Therefore, the user inserts bolts, screws, etc. into the fastening holes 226a on the lower side of the lower frame 220a and fastens the fastening holes 225a and 226a of each support protrusion 225 and 226, thereby forming the lower frame 220a. ) and the upper frame (220b) can be fastened.

In addition, a third O-ring 293 will be inserted between the outer surface of the inner member 260 and the inner surface of the second insertion part 222 to prevent shaking, prevent water leakage, generate rotation resistance, and improve the feeling of rotation. You can. Additionally, an O-ring insertion groove 263 into which the third O-ring 293 is inserted may be formed along the circumferential direction on the outer surface of the inner member 260.

Additionally, the distance between the inner member 260 and the second insertion portion 222 of the second water discharge nozzle 220 can be maintained by the third O-ring 293. Additionally, shaking of the second water outlet nozzle 220 can be prevented by the third O-ring 293. Additionally, the gap between the inner member 260 and the second insertion portion 222 of the second water discharge nozzle 220 can be maintained by the third O-ring 293. In addition, as friction is generated by the third O-ring 293, the rotation of the second water discharge nozzle 220 proceeds smoothly, and the feeling of operation can be improved, and the second water discharge nozzle 220 can be fixed in the rotated position. You can.

In addition, a second angle ring 296 may be inserted between the outer surface of the inner member 260 and the inner surface of the first body 231 to prevent shaking, prevent water leakage, generate rotation resistance, and improve the feeling of rotation. there is. The second angle ring 296 generates friction in the axial direction, thereby preventing the second water discharge nozzle 220 from shaking in the axial direction.

At this time, the lower end of the second insertion portion 222 may be supported in contact with the upper side of the second angle ring 296. Additionally, an angle ring insertion groove 267 may be formed along the circumferential direction on the outer surface of the inner member 260.

For example, the second angle ring 296 may be inserted into the angle ring insertion groove 267.

As another example, the angle ring support member 297 may be inserted into the angle ring insertion groove 267.

The angle ring support member 297 includes an insertion portion 297c inserted into the angle ring insertion groove 267. In addition, the angle ring support member 297 includes an angle ring support portion 297a extending horizontally outward from the bottom of the insertion portion 297c so that the second angle ring 296 is seated.

Additionally, the angle ring support member 297 may form a vertical extension portion 297d extending vertically downward from the outside of the angle ring support member 297a. The vertical extension portion 297d is sandwiched between the outer surface of the inner member 260 and the inner surface of the first body 231. The vertical extension portion 297d may form an inclined surface 297b at the bottom of the inner surface facing the inner member 260. Due to the inclined surface 297b, the thickness of the lower end of the vertical extension portion 297d can be formed to be narrow. Therefore, it is easy to insert the angle ring support member 297 between the inner member 260 and the first body 231.

By the second angle ring 296, the distance between the inner member 260 and the first body 231 can be maintained constant. For reference, the second angle ring 296 may have a ring shape and its cross-section may be square.

In addition, the lower end of the second insertion portion 222 is supported by the angle ring support member 297 and the second angle ring 296, so that the second water discharge nozzle 220 is fixed more stably and can rotate. there is.

In addition, the second cock 229 extends in the horizontal direction, has an inlet 229a connected to the sterilizing water pipe 34, and an outlet 229b that communicates with the inlet 229a and extends in the vertical direction. can be formed. The sterilizing water pipe 34 and the inlet 229a are fixed by a separate fixing cap 218 that pressurizes the sterilizing water pipe 34 with the sterilizing water pipe 34 inserted outside the inlet 229a. It can be.

Additionally, the sterilizing water pipe 34 and the inlet 229a may be joined by heat fusion. In this case, when replacing the sterilizing water pipe (34), the entire second cock (229) may be replaced.

As an example, the second cock 229 and the sterilizing water pipe 34 can be installed and separated from the second water outlet nozzle while being integrally coupled.

When installing, the lower frame 220a forming the bottom surface of the second water outlet nozzle 220 is separated. Then, the second cock 229 and the sterilizing water pipe 34 are inserted from the open lower side to the upper side of the second water outlet nozzle 220, and the sterilizing water pipe 34 is inserted into the rotation limiting hole 262 to provide sterilizing water. The pipe 34 is inserted into the inner member 260. Then, the lower frame 220a is coupled to the second water outlet nozzle 220.

Conversely, when separating, the lower frame 220a forming the bottom surface of the second water outlet nozzle 220 is separated. Then, the second cock 229 and the sterilizing water pipe 34 are pulled out from the upper side of the second water outlet nozzle 220 to the lower side. Then, the sterilizing water pipe (34) is pulled through the rotation limiting hole (262). At this time, the sterilizing water pipe 34 is separated from the second water outlet valve.

Thereafter, after installing the new second cock 229 and the sterilizing water pipe 34, the lower frame 220a is coupled to the second water outlet nozzle 220.

<Combined structure of display and input means and first water outlet nozzle>

Figure 19 is a view of the display and input means viewed from the bottom. Figure 20 is a view of the first water outlet nozzle viewed from below. Figure 21 is a side cross-sectional view of the first water outlet nozzle. Figure 22 is a front cross-sectional view of the first water outlet nozzle. FIG. 23 is an enlarged view of a portion of FIG. 22.

19 to 23, the display and input means 240 may be disposed above the first water outlet nozzle 210. Additionally, the display and input means 240 may be disposed above the second water outlet nozzle 220.

The display and input means 240 include a plate 241 disposed at the uppermost side and exposed to the outside, a frame 242 disposed below the plate 241, and disposed below the frame 242. It may include PCB (243).

Additionally, the plate 241 may be formed of a transparent or translucent material. The PCB 243 may be equipped with various display means, including LED. Additionally, the PCB 243 may be further equipped with a switch, a touch sensor, etc. Various connection terminals 243a and 243b may be formed on the PCB 243. The connection terminals 243a and 243b may be disposed in a position that overlaps the first insertion portion 212 of the first water outlet nozzle 210 in the vertical direction. Accordingly, the power line and various wirings passing through the first insertion portion 212 can be easily coupled to the connection terminals 243a and 243b, and when the first water outlet nozzle 210 rotates, the power line and various wirings Twisting and tangling can be prevented. In addition, a plurality of holes may be formed in the frame 242 so that the display means, switches, touch sensors, etc. are exposed to the plate 241.

An adhesive layer is formed on the bottom of the plate 241, and the plate 241 can be adhered to the upper surface of the frame 242 by the structure of the adhesive layer. The frame 242 may have at least a portion of its upper surface formed in surface contact with the plate 241 as a flat surface.

Additionally, the first water outlet nozzle 210 may have an open upper side and an inner space 210a that is concave from the upper side to the lower side. In addition, the frame 242 and the PCB 243 are stored in the inner space 210a formed in the first water discharge nozzle 210, and the plate 241 is located on the open upper side of the first water discharge nozzle 210. can cover.

At this time, the plate 241 may be formed to be larger than the upper area of the first water discharge nozzle 210. Accordingly, the boundary portion 241a of the plate 241 protrudes to the outside of the second water outlet nozzle 210, and thus the phenomenon of water or foreign substances flowing between the plate 241 and the second water outlet nozzle 210 is improved. It can be. In other words, waterproof performance can be improved. The plate 241 may be fixed to the top of the first water outlet nozzle 210 by adhesive or other methods.

Additionally, the frame 242 may include a flat portion 242h and a side wall 242g extending downward from a lower circumference of the flat portion 242h. And, as the PCB 243 is accommodated inside the side wall 242g, the waterproofness of the PCB 243 can be secured.

Additionally, a plurality of hook portions 242d protruding inward may be formed on the inner surface of the side wall 242g. The PCB 243 can be fixed to the frame 242 by the hook portion 242d.

The hook portion 242d is formed at the front end (left side in FIG. 19) and rear end (right side in FIG. 19) of the lower side of one side (reference to FIG. 19) of the side wall 242g, and is formed at the rear end of the other side of the side wall 242g. It can be. The hook portion 242d is not formed at the front end (left side in FIG. 19) of the other side (upper side in FIG. 19) of the side wall 242g. Then, when separating the PCB 243 from the frame 242, the PCB 243 is pulled at the front end (left side in FIG. 19) of the other side (upper side in FIG. 19) where the hook portion 242d is not formed, and the PCB ( 243) can be separated from the frame 242. In addition, the fastening holes 243c and 2112, which will be described later, may be formed at the front end (left side in FIG. 19) of the other side (upper side in FIG. 19) where the hook portion 242d is not formed.

The PCB 243 may be assembled from the lower side to the upper side (based on FIG. 22) of the frame 242. Additionally, the hook portion 242d may be formed to be inclined upward as its protruding thickness gradually increases from the bottom to the top. Therefore, when the PCB 243 is inserted from the lower side to the upper side, both sides of the PCB 243 move along the inclined surface 242e of the hook portion 242d, and then both sides of the PCB 243 are positioned at the top of the hook portion 242d. When inserted, the PCB 243 can be fixed to the frame 242.

Additionally, the frame 242 may be formed with a flat portion 242h connecting the upper ends of the two side walls 242g. In addition, a plurality of open grooves 242f open in the vertical direction may be formed in the flat portion 242h. The lower end of the flat portion 242h may be supported in contact with the upper side of the PCB 243.

Accordingly, the lower side of the PCB 243 is supported by the hook portion 242d, the upper side is supported by the lower end of the open groove 242f, and the PCB 243 is securely fixed to the frame 242. It can be.

In addition, fastening holes 243c, 2112 are formed in the lower frame 2110 of the PCB 243 and the first water outlet nozzle 210 at positions corresponding to each other, and the fastening holes 243c, 2112 are bolted. , can be fastened with screws, etc.

In this case, the lower frame 2110 and the PCB 243 can be coupled to each other by fastening screws, etc., on the lower side of the first water outlet nozzle 210.

In addition, the frame 242 may be provided with a fastening groove that is concave from the bottom to the top so that screws that pass through the fastening holes 243c and 2112 can be fastened. In this case, the lower frame 2110, PCB 243, and frame can be combined more reliably.

A cock hole 2113 in which the first cock 219 is installed is formed in the lower frame 2110 of the first water outlet nozzle 210, and a hollow 2114 in which the second common pipe 39 is disposed is formed. You can. The hollow 2117 may mean the hollow of the insertion part 212.

In addition, protrusions 211a protruding inward are formed on the inner surfaces of the first water discharge nozzles 210 facing each other.

In addition, a first protrusion 242c is formed on the frame 242, which is seated on the upper end of the protrusion 211a. The first protrusion 242c may form an inclined surface at the outer lower edge.

Additionally, on the inner surfaces of the first water discharge nozzles 210 facing each other, grooves 2115 that are concave inward may be formed on the lower side of the protrusions 219. The groove 2115 may have an inclined surface 2116 sloping upward outward at the bottom.

Additionally, a pair of second protrusions 242a may be formed on both sides of the frame 242 to be inserted into the groove 2115 and protrude outward.

The second protrusion 242a has a shape whose thickness gradually decreases from the top to the bottom. Accordingly, an inclined surface 242b is formed on the outer surface of the second protrusion 242a.

Accordingly, when the frame 242 is assembled while pressing from the upper side of the first water discharge nozzle 210 to the lower side, the inclined surface 242b descends while contacting the protruding portion 211a, and then the inclined surface 242b is moved to the protruding portion 211a. ), the second protrusion 242a is accommodated in the groove 2115, and the frame 242 may be caught and restrained by the first water discharge nozzle 210.

In the present invention, the display and input means 240 are disposed on the upper surface of the first water outlet nozzle 210 that is accessible to the user. Therefore, water may flow into the display and input means 240 due to water splashing caused by the use of water, which may cause malfunction.

To prevent this, in the present invention, the top of the first water outlet nozzle 210 is formed to be open, and the open top is covered with the plate 241. An internal space is formed between the plate 241 and the first water discharge nozzle 210, and a touch sensor for input, an LED for display, etc. are disposed in the internal space.

In addition, the outer side of the plate 241 was formed to protrude more than the first water outlet nozzle 210, thereby ensuring waterproofness.

In addition, the first water outlet nozzle 210 has a plurality of hose fixing hooks arranged on the inside and a hole formed therein. Therefore, when the display and input means 240 are separated from the first water outlet nozzle 210, the caulk and piping are exposed to the upper side, and the visiting manager or user can easily separate the piping and caulk and install new piping and caulk. there is.

The display and input means 240 may be coupled to the upper side of the first water discharge nozzle 210 or separated as a single module through screw fastening, adhesive, hook fastening, etc.

The display and input means 240 is completely separated from the first water outlet nozzle 210 by unscrewing the screw from the lower side of the first water outlet nozzle 210. Then, the upper side of the first water outlet nozzle 210 is opened.

<Sterilizing water module>

Figure 24 is a perspective view of a sterilizing water module, which is a component of the present invention. Figure 25 is an exploded perspective view of a sterilizing water module, which is a component of the present invention. Figure 26 is a cross-sectional view of the electrode part included in the sterilizing water generation module, which is a component of the present invention.

Referring to the drawings, the sterilizing water module 150 according to the present invention includes a casing 1510, an electrode portion 1520, a spacer 1530, and a cap 1540.

First, the casing 1510 forms the external body of the sterilizing water module 150.

A space in which the electrode unit 1520 and the spacer 1530 are accommodated is formed inside the casing 1510. Then, one side of the casing 1510 is opened to form an opening 1511, and a discharge pipe 1512 through which sterilizing water is discharged is formed on the other side. The casing 1510 may have a box shape with at least a portion of it being flat. At least a portion of the casing 1510 may have a long box shape.

The thickness or width of the internal space defined by the casing 1510 can be maintained at a constant size along the longitudinal direction so that a constant water pressure is maintained when water is taken in and out.

The opening 1511 of the casing 1510 may be shielded by a cap 1540. For example, a cylindrical inlet 1513 may be formed at one end of the casing 1513 where the opening 1511 is formed, and the cap 1540 may also be formed in a cylindrical shape. The cap 1540 surrounds the inlet 1513 of the casing 1510 where the opening 1511 is formed, and may be coupled to the casing 1510. The inlet 1513 may have a step shape, with its outer diameter gradually increasing from the top to the bottom. At the end of the inlet portion 1513, a plurality of groove portions 1513b may be formed on the outer surface.

Meanwhile, the cap 1540 may be composed of an upper cap 1541 and a lower cap 1542.

The upper cap 1541 may have a hollow shape so that at least a portion of the casing 1510 can penetrate.

The upper cap 1541 may be fitted from the upper side (based on FIG. 25) of the casing 1510 where the discharge pipe 1512 is formed to the lower side. In addition, the upper cap 1541 may be seated on the upper side of the inlet 1513 in a form that surrounds the inlet 1513 from the upper side.

Additionally, the lower cap 1542 is fastened to the upper cap 1541 while shielding the opening 1511 at the lower side of the casing 1510. For example, a screw thread 1543 may be formed on the outer peripheral surface of the lower side of the upper cap 1541. In addition, a screw thread (not shown) to which the screw thread 1543 of the upper cap 1541 is fastened may be formed on the inner peripheral surface of the upper end of the lower cap 1542.

When the upper cap 1541 and the lower cap 1542 are fastened as described above, the opening 1511 of the casing 1510 may be shielded by the cap 2540.

Additionally, an O-ring 1550 for sealing may be inserted between the upper cap 1541 and the lower cap 1542 or between the casing 1510 and the cap 1540.

An inlet pipe 1544 through which purified water supplied from the sterilizing water pipe 34 flows may be formed in the lower cap 1542. The inlet pipe 1544 may be connected to the sterilizing water pipe on the filter side, and the discharge pipe 1512 may be connected to the sterilizing water pipe on the water outlet 200 side.

Additionally, anti-slip irregularities 1545 and 1546 may be formed on the outer surface of the upper cap 1541 and the lower cap 1542, respectively, to prevent the user's hands from slipping. Grooves and protrusions may be formed alternately along the circumferential direction on the outer surface of the upper cap 1541 and the outer surface of the lower cap 1542 to form the anti-slip irregularities 1545 and 1546.

Additionally, the casing 1510 may be provided with a plurality of reinforcing ribs 1514 integrally formed on the outer surface.

The casing 1510 may have a flat surface. The plurality of reinforcing ribs 1514 provided on the outer surface of the planar casing 1510 may be composed of a plurality of transverse reinforcing ribs and a plurality of longitudinal reinforcing ribs. The plurality of longitudinal reinforcing ribs and the plurality of transverse reinforcing ribs may intersect to form a grid pattern.

With the configuration of the plurality of reinforcing ribs 1514 as described above, the pressure resistance performance of the casing 1510 can be further improved.

Meanwhile, as described above, the exterior of the sterilizing water module 150 is formed by the casing 1510 and the cap 1540.

The sterilizing water module 150 may be arranged so that the inlet pipe 1544 faces downward and the discharge pipe 1512 faces upward. Accordingly, water received through the inlet pipe 1544 may flow upward from the inner lower portion of the casing 1510. The discharge pipe 1512 is located on the upper side of the casing 1510, so that sterilizing water can be discharged to the outside of the casing 1510 through the discharge pipe 1512.

The inlet pipe 1544 and discharge pipe 1512 are each connected to the sterilizing water pipe 34. Therefore, purified water flowing into the sterilizing water pipe 34 flows into the sterilizing water module 150 through the inlet pipe 1544, and the sterilizing water generated in the sterilizing water module 150 is sterilized through the discharge pipe 1512. After exiting the water module 150, it can be supplied to the water outlet 200 through the sterilizing water pipe 34.

As described above, when the inlet pipe 1544 through which purified water flows in is disposed, and the discharge pipe 1512 through which sterilizing water is discharged is provided at the upper side, water flows slowly from the lower side to the upper side, and in the process of generating sterilizing water, After the generated bubbles are collected at the top, they can escape through the discharge pipe 1512.

If the inlet pipe 1544 is located on the upper side of the casing 1510, the water received through the inlet pipe 1544 flows rapidly downward due to gravity, and the purified water does not sufficiently react with the electrode unit 1520. There is a possibility that it may be discharged without being discharged. As a result, it is difficult to secure the desired sterilizing water concentration.

In addition, if the inlet pipe 1544 and the discharge pipe 1512 are arranged in a horizontal direction, the air bubbles generated during the sterilizing water generation process are not discharged smoothly, resulting in a problem that the sterilizing water generation efficiency is lowered.

In order to prevent this problem, the inlet pipe 1544 and the discharge pipe 1512 are arranged in the vertical direction, but the inlet pipe 1544 is placed at the bottom and the discharge pipe 1512 is placed at the top, so that the sterilizing water module Install (150).

According to this, as the water level gradually rises from the bottom to the top, the contact area between the water and the electrode unit 1520 expands, thereby increasing the efficiency of generating sterilizing water due to a chemical reaction between the electrode unit 1520 and water.

Inside the casing 1510, a flow path through which water can flow along the longitudinal direction of the casing 1510 is formed.

Inside the casing 1510 as described above, two electrode units 1520 may be arranged to overlap each other. Additionally, a spacer 1530 may be provided inside the casing 1510 to maintain the gap between the two electrode units 1520.

The electrode unit 1520 includes a first electrode 1521 and a second electrode 1522. The casing 1510 may be provided with one or more holders (not shown) on its inner surface to securely hold at least a portion of the first electrode 1521 and the second electrode 1522.

For example, the first electrode 1521 and the second electrode 1522 may be provided in a plate shape.

As another example, the first electrode 1521 may be provided in a plate shape, and the second electrode 1522 may be provided in a folded shape with one side facing the other. The second electrode 1522 may have a 'U' shaped cross section.

The second electrode 1522 may include a pair of electrode plates 1522a and 1522b facing each other, and a bent portion 1522c connecting one side of the electrode plates 1522a and 1522b.

At least one slit 1522d having a cut shape may be formed in the bent portion 1522a.

The first electrode 1521 may be disposed between the electrode plates 1522a and 1522b.

The electrode plates 1522a and 1522b and the first electrode 1521 are arranged parallel to each other and remain spaced apart from each other. That is, a gap G is formed between the electrode plates 1522a and 1522b and the first electrode 1521.

In addition, in order to maintain the gap G formed between the electrode plates 1522a and 1522b and the first electrode 1521 as described above, between the electrode plates 1522a and 1522b and the first electrode 1521, or A space 1530 is inserted between the electrode plates 1522a and 1522b.

The spacers 1530 may be provided in plurality. The spacer 1530 may be inserted into the slit 1522d. For example, two slits 1522d may be provided, spaced apart in the longitudinal direction, and two spacers 1530 may also be provided, corresponding to the slits 1522d.

The spacer 1530 includes a central portion 1531 formed parallel to the longitudinal direction of the electrode 1520, and a plurality of protrusions ( 1532).

For example, the protrusion 1532 may be inserted between the electrode plates 1522a and 1522b to maintain a gap between the electrode plates 1522a and 1522b.

As another example, the protrusion 1532 may be inserted between the electrode plates 1522a and 1522b and the first electrode 1521 to maintain a gap between the electrode plates 1522a and 1522b and the first electrode 1521.

As described above, when the spacer 1530 is formed of the central portion 1531 and the protruding portion 1532, the gap between the electrodes 1521 and 1522 is maintained, and water can flow between the protruding portions 1532. , the flow resistance of water may be reduced.

Additionally, terminal portions 1523 and 1524 may be formed on the first electrode 1521 and the second electrode 1522, respectively. A gripping portion 1521a that protrudes and has a curved surface may be formed on the first electrode 1521 to surround at least a portion of the terminal portion 1523.

The terminal portions 1523 and 1524 may penetrate the lower cap 1542 and be exposed to the outside. The terminal portions 1523 and 1524 may be formed parallel to each other.

A fitting portion 1513a to which the terminal portions 1523 and 1524 are fixed may be formed on the inner surface of the inlet portion 1513 of the casing 1513. Additionally, a through hole 1547 through which the terminal portions 1523 and 1524 pass may be formed in the lower cap 1542. Additionally, O-rings 1561 and 1562 may be inserted between the through hole 1547 and the terminal portions 1523 and 1524 to prevent water leakage.

Meanwhile, through the terminal portions 1523 and 1524 exposed to the outside of the lower cap 1542, the first electrode 1521 and the second electrode 1522 are supplied with power from the outside and supplied with water (purified water) in which chlorine ions are dissolved. By electrolyzing, hypochlorous acid water with sterilizing power can be produced. Due to its nature, hypochlorous acid water contains a large amount of bubbles and comes out cloudy. Therefore, the user can visually check the sterilizing water containing many bubbles and distinguish between purified water and sterilizing water. At this time, the concentration of the sterilizing water can be set in a range that does not cause problems when the user drinks it.

In addition, the first electrode 1521 and the second electrode 1522 are arranged to face each other on both sides of the solid polymer electrolyte membrane, and induce an electrolysis reaction in water to generate high concentration of ozone, which has strong sterilizing power. This mixed sterilizing water can also be produced.

As described above, terminal portions 1523 and 1524 are provided on each of the two electrodes 1521 and 1522, so that external power (current) can be applied to the electrodes 1521 and 1522 through the terminal portions 1523 and 1524. . The terminal portions 1523 and 1524 each protrude in the same direction from one side of each electrode 1521 and 1522, and may extend through the lower cap 1542 to protrude outward. Additionally, the terminal portions 1523 and 1524 may be arranged to be spaced apart from each other in the transverse direction (width direction) of the electrodes 1521 and 1522.

As described above, when the electrode unit 1520 is provided with a flat first electrode 1521 and a folded second electrode 1522,

The size of the electrode unit 1520 may become smaller, and as a result, the size of the sterilizing water module 150 may become smaller.

On the other hand, because the second electrode 1522 has a folded shape and the first electrode 1521 is disposed between the electrode plates 1522a and 1522b of the second electrode 1522, water and electrodes 1521 and 1522 The contact area can be improved, and furthermore, the chemical reaction between the electrodes 1521 and 1522 and water can be efficiently increased.

For reference, the first electrode 1521 and the second electrode 1522 may be coated on opposing surfaces to form a coating layer. For example, the first electrode 1521 and the second electrode 1522 may be formed of titanium (Ti). Additionally, the coating layer may be formed of a mixture of iridium (Ir) and platinum (Pt). The first electrode 1521 and the second electrode 1522 may have a thickness of 0.5 mm, and the coating layer may have a thickness of 1.6 μm. The coating layer may be formed on both sides of the first electrode 1521. Additionally, the coating layer may be formed on inner surfaces of the second electrodes 1522 facing each other.

In the sterilizing water module 150 as described above, the generated sterilizing water is provided to the sink through the second water outlet nozzle 210, and the user can use the sterilizing water to wash dishes, wash fruit, etc.

*442

*Hereinafter, the arrangement and connection structure within the housing of the control unit that controls the sterilizing water module and valve will be described.

Figure 27 is a front view showing the sterilizing water module and control unit coupled to the filter bracket. Figure 28 is a front view showing part of the filter bracket.

Referring to FIGS. 27 and 28, a filter 120 for purifying water and a filter bracket 170 on which various valves are mounted are provided inside the housing 110.

The filter bracket 170 may be disposed inside the housing 110 adjacent to the front cover 113 (see FIG. 1) forming the front surface of the housing 110.

A filter 120 may be coupled to the lower side of the filter bracket 170, and a control unit 160 for controlling the sterilizing water module 150 may be coupled to the upper side.

The control unit 160 may be detachably coupled to the filter bracket 170. The control unit 160 may include a box-shaped case.

For example, the filter bracket 170 and the control unit 160 may have screw fastening holes 174 formed at positions facing each other, and the filter bracket 170 and the control unit may be coupled by a screw fastening method. At this time, a protrusion protruding outward may be formed on one or both sides of the control unit 160, and a fastening hole may be formed in the protrusion.

As another example, the filter bracket 170 includes a first extension portion 171 extending horizontally from the inner surface of the filter bracket 170, and a second extension portion extending vertically upward from an end of the first extension portion 171. A first extension protrusion 173 including a second extension portion 172 may be formed.

The second extension part 172 may support one side of the control unit 160 while contacting the lower side of one side of the control unit 160 .

In addition, the filter bracket 170 includes a third extension 176, which extends in the horizontal direction from the inner surface of the filter bracket 170 and is located above the first extension 171. A second extension protrusion 178 including a fourth extension 177 extending vertically downward may be formed at the end of the portion 176.

The fourth extension 172 may support one side of the control unit 160 while contacting the upper side of one side of the control unit 160.

The first extension protrusion 173 and the second extension protrusion 178 may be formed on both sides of the filter bracket 170 to be symmetrical to each other.

In addition, a support jaw 179 extending forward and equipped with a front cover 113 (see FIG. 1) may be formed on the filter bracket 170 to support the lower side of the control unit 160.

Accordingly, the control unit 160 can be placed and coupled to the upper side of the filter bracket 170.

That is, the filter 120 is mounted on the lower side of the filter bracket 170, and the control unit (PCB Assembly, 160) that provides electrical signals to the bacterial water module 150 and the sterilizing water module 150 is installed on the upper side of the filter bracket 170. ) is installed.

While adding a sterilizing water discharge function to an existing water purifier, there is no choice but to place a sterilizing water module 150 that functions to generate sterilizing water and a control unit (PCB Assembly, 160) that provides an electrical signal inside the housing 110.

In the existing water purifier, in order to add the sterilizing water module 150 and the control unit (PCB Assembly, 160) without major structural changes, the volume of the sterilizing water module 150 was minimized and a sterilizing water outlet flow path was added.

In addition, as the purified water that has passed through the filter 120 passes through the sterilizing water module 150, which is formed by coating platinum and iridium on a titanium electrode inside the sterilizing water module 150, hypochlorous acid is generated and sterilizing water is generated. It can be.

In the case of the present invention, in order to mount the sterilizing water module 150 and the control unit (PCB assembly, 160) that provides an electrical signal to the sterilizing water module 150 in the housing 110, the filter bracket 170 used in the existing water purifier is used. ) By modifying only the mold, the structure for seating and combining the sterilizing water module (150) and the control unit (PCB Assembly, 160) was easily implemented. Additionally, the length of the flow path connecting the filter 120 and the sterilizing water module 150 may be set to a minimum.

<Sterilizing water discharge control>

Figure 29 is a block diagram showing the configuration for explaining the sterilizing water discharge process in the water dispensing device according to the present invention. And, Figure 30 is a flowchart showing a control method for discharging sterilizing water from a water dispensing device according to an embodiment of the present invention. And, Figure 31 is a flowchart showing a control method for discharging sterilizing water from a water dispensing device according to another embodiment of the present invention.

First, referring to FIG. 29, raw water passes through the filter 120, and the purified purified water passes through the inflow valve 35 and the flow sensor 36 and then flows into the sterilizing water module 44.

Purified water passing through the sterilizing water module 44 is changed into sterilizing water, and the sterilizing water discharged from the sterilizing water module 44 flows into the second water outlet valve 62.

Thereafter, depending on the opening position of the second water outlet valve 62, the sterilizing water flowing into the second water outlet valve 62 flows into the water outlet unit 200 and is supplied to the user through the second water outlet nozzle 220. , can be discarded into the drain through the drain pipe 50.

The second water discharge valve 62 is opened and closed by the control unit 160. In detail, when the control unit 160 instructs the opening of the first outlet connected to the second water outlet nozzle 220, the second water outlet valve 62 opens the first outlet connected to the second water outlet nozzle 220, The inflow sterilizing water is supplied to the second water outlet nozzle (220).

On the other hand, in detail, when the control unit 160 instructs the opening of the second outlet connected to the drain pipe 50, the second water outlet valve 62 opens the second outlet connected to the drain pipe 50 to allow inflow. The sterilizing water is delivered to the drain pipe (50).

Meanwhile, as described above, when sterilizing water is generated by electrolyzing purified water through the sterilizing water module 150, hypochlorous acid water remains inside the casing 1510 or the electrode portion 1520 after the sterilizing water is discharged. And, as a result, electrolysis performance may deteriorate. Additionally, problems such as discoloration and corrosion may occur in the sterilizing water module 150, the sterilizing water pipe 34, the second water outlet valve 62, and the second water outlet nozzle 220.

In detail, as shown in Chemical Formula 1 below, a problem occurs in which manganese ions (Mn2+) contained in water quickly precipitate in the form of manganese oxide.

[Formula 1]

HOCl + Mn ²⁺ + H ₂ O → 2MnO _2(s) + Cl ^- + 3H ⁺

Therefore, after discharging the sterilizing water, it is necessary to clean and drain the sterilizing water module 150, the sterilizing water pipe 34, and the second water discharging nozzle 220.

Figure 30 shows a control method for cleaning the sterilizing water module 150.

Referring to Figure 30, first, when the user requests sterilizing water to be dispensed, sterilizing water can be dispensed (S110).

At this time, the amount of sterilizing water discharged once can be automatically set to the standard value.

At this time, the water intake valve 35 and the sterilizing water valve 44 are open, the second water outlet valve 62 shields the second outlet connected to the drain pipe 50, and the second outlet connected to the second water outlet nozzle 220 is opened. Exit 1 is open. Then, power is supplied to the sterilizing water module 150.

Accordingly, the purified water that has passed through the filter 120 passes through the sterilizing water module 150, is converted into sterilizing water, and is supplied to the second water outlet nozzle 220, and the user can receive sterilizing water.

Afterwards, it is determined whether a forced stop command is issued from the user (S120).

If a forced stop occurs in step S120, a draining step (S190) described later is performed.

On the other hand, in step S120, if a forced stop does not occur, the amount of washing water discharged from the second water outlet nozzle 220 (accumulated pulse value) is compared with a preset reference value (washing pulse value). (S130)

In step S130, if the amount of discharged washing water (accumulated pulse value) exceeds the preset reference value (washing pulse value), the generation of sterilizing water is stopped, and the purified water flowing into the sterilizing water module 150 is in the form of purified water. supplied to the user. (S140)

At this time, the water intake valve 35 and the sterilizing water valve 44 are open, the second water outlet valve 62 shields the second outlet connected to the drain pipe 50, and the second outlet connected to the second water outlet nozzle 220 is opened. Exit 1 is open. Then, the power supply to the sterilizing water module 150 is cut off.

Afterwards, it is re-determined whether a forced stop command is issued from the user (S150).

If a forced stop occurs in step S150, a draining step (S190) described later is performed.

On the other hand, in step S150, if a forced stop does not occur, the amount (accumulated value) of purified water discharged through the second water discharge nozzle 220 is compared with a preset target value. (S160)

In step S160, if the amount (accumulated pulse value) of the discharged purified water exceeds the preset target value (target pulse value), the discharge of purified water to the second water discharge nozzle 220 is stopped and draining is performed. ( S170)

At this time, the water intake valve 35 and the sterilizing water valve 44 are opened, the second water outlet valve 62 opens the second outlet connected to the drain pipe 50, and the second outlet connected to the second water outlet nozzle 220 is opened. Exit 1 is shielded. Then, the power supply to the sterilizing water module 150 is cut off.

Then, it is determined whether the drain has progressed for the preset reference time (S180).

For example, the standard time may be set to about 10 seconds.

Afterwards, if it is determined that the drain has proceeded for the standard time, the drain is stopped (S190).

At this time, the water intake valve 35 and the sterilizing water valve 44 are also shielded, the second outlet valve 62 is also shielded, and the second outlet connected to the drain pipe 50 is also shielded, and the second outlet connected to the second water outlet nozzle 220 is also shielded. Exit 1 is also shielded. Then, the power supply to the sterilizing water module 150 remains cut off.

According to the above, after the discharge of the sterilizing water is completed, purified water is supplied to the second water discharge nozzle 220, and the pipe connecting the sterilizing water module 150 and the second water discharge nozzle 220 is cleaned. , the second water outlet nozzle 220 may also be cleaned. Therefore, discoloration of the channel due to MnO2 can be prevented. Additionally, as draining progresses, residual water from the sterilizing water module 150 and the sterilizing water pipe 44 may be discharged into the drain through the drain pipe 50.

For example, the one-time discharge amount of the washing water may be set to 120ml, 500ml, or 1000ml.

And, when the amount of washing water discharged at one time is 120ml, the reference value (pulse value) can be set to 205 and the target value (pulse value) can be set to 248.

Additionally, when the amount of washing water discharged at one time is 500 ml, the reference value (pulse value) can be set to 849, and the target value (pulse value) can be set to 999.

In addition, when the amount of washing water discharged at one time is 1000 ml, the reference value (pulse value) can be set to 1848, and the target value (pulse value) can be set to 1998.

Although not shown, the sterilizing water module 150 flows the purified water that has passed through the filter from the sterilizing water module 150 to the drain pipe 50 and directs the current to each electrode (1521 and 1522) after draining. Conversely, the reliability of the electrodes 1521 and 1522 may be secured by additionally performing an applied reversal step. Additionally, after the above reversal step is performed, additional draining may optionally be performed.

Additionally, with the current direction reversed, sterilizing water may be generated for a certain period of time.

Figure 31 shows a control method for drain.

Referring to FIG. 31, first, drain is performed (S210).

Draining as described above may be performed by manipulation by the user, or may be performed automatically.

In the latter case, the amount (accumulated value) of washing water and purified water discharged through the second water discharge nozzle 220 exceeds the preset target value. In this case, the discharge of washing water or purified water into the second water discharge nozzle 220 stops, and draining proceeds automatically.

In step S210, the water intake valve 35 and the sterilizing water valve 44 are opened, the second water discharge valve 62 opens the second outlet connected to the drain pipe 50, and the second water discharge nozzle 220 and The connected first outlet is shielded. Then, the power supply to the sterilizing water module 150 is cut off.

In the process of draining as described above, the control unit determines whether there is a request for dispensing cold water, hot water, or purified water from the user. (S220)

If, in step S220, it is determined that a command to dispense cold water, hot water, or purified water has been issued from the user, draining is stopped (S250).

Then, cold water, hot water, or purified water is dispensed according to the user's request (S260).

*510

*On the other hand, in step S220, if the command to dispense cold water, hot water, or purified water by the user does not occur, it is determined whether draining has progressed for the preset reference time (S230).

As an example, the reference time may be set to about 10 seconds.

Afterwards, if it is determined that the drain has proceeded for the standard time, the drain is stopped (S240).

At this time, the water intake valve 35 and the sterilizing water valve 44 are also shielded, the second outlet valve 62 is also shielded, and the second outlet connected to the drain pipe 50 is also shielded, and the second outlet connected to the second water outlet nozzle 220 is also shielded. Exit 1 is also shielded. Then, the power supply to the sterilizing water module 150 remains cut off.

According to the above, in the process of draining, if a request for cold/hot/pure water discharge occurs from the user, the drain is stopped so that the cold/hot/pure water discharge according to the user's request proceeds immediately. Therefore, the user Regardless of whether it is drained or not, purified water at the desired temperature can be immediately provided, thereby increasing the satisfaction felt by the user.

Figure 32 is a timing diagram showing the operation status of the sterilizing water module and each valve when a fixed amount of sterilizing water is discharged. Figure 33 is a timing diagram showing the operation status of the sterilizing water module and each valve before a fixed amount of sterilizing water is discharged and during forced shutdown. Figure 34 is a timing diagram showing the operation status of the sterilizing water module and each valve before dispensing a fixed amount of sterilizing water and when dispensing cold/hot/pure water.

First, referring to FIG. 32, when dispensing a fixed amount of sterilizing water, it can be seen that when sterilizing water is completed, purified water is discharged and piping cleaning is in progress.

In detail, when a user requests the discharge of sterilizing water, power is supplied (on) to the sterilizing water module 150, and the inflow valve 35 and the sterilizing water valve 44 are opened (on). And, the first outlet of the second water outlet valve 62 connected to the second water outlet nozzle 220 is opened (on).

Then, when the sterilizing water is dispensed in a fixed quantity, the sterilizing water dispensing ends, purified water is discharged through the second water discharging nozzle 220, and cleaning of the pipe between the sterilizing water module 150 and the second water discharging nozzle 220 proceeds. In this process, the second water outlet nozzle 220 is also cleaned. At this time, the power to the sterilizing water module 150 is turned off, and the inflow valve 35 and the sterilizing water valve 44 remain open (on). And, the second water outlet valve 62 maintains the first outlet connected to the second water outlet nozzle 220 in an open state. For example, as described above, the time for purified water to be discharged through the second water discharge nozzle 220 may be set to 5 seconds.

As described above, after sterilizing water is discharged through the second water outlet nozzle 220, when purified water is discharged, the user uses the sterilizing water to wash fruits, vegetables, dishes, etc., and then uses the purified water to wash the fruits, vegetables, and dishes. You can easily rinse off the sterilizing water on your back.

As described above, when the outlet of purified water through the second water outlet nozzle 220 is completed, draining begins. In this process, residual water from the sterilizing water module 150 and the sterilizing water pipe 34 may be discharged through the drain passage 50. At this time, the sterilizing water module 150 remains turned off, and the inlet valve 35 and the sterilizing water valve 44 remain open (on). Then, the second water discharge valve 62 closes the first outlet connected to the second water discharge nozzle 220 and opens (on) the second outlet connected to the drain pipe 50. For example, as described above, the time for purified water to be discharged from the drain pipe 50 may be set to 10 seconds.

And, when drain is completed, it enters standby mode. In standby mode, the sterilizing water module 150 remains turned off, and the inflow valve 35 and the sterilizing water valve 44 are closed.

In FIG. 32, when the first outlet of the second water outlet valve 62 is open, it means that the second outlet is blocked. Conversely, when the second outlet of the second water outlet valve 62 is open, the first outlet is blocked. This may mean being blocked.

That is, when water is supplied from the second water discharge valve 62 to the second water discharge nozzle 220, discharge of water to the drain pipe 50 is blocked, and from the second water discharge valve 62, the drain pipe 50 is blocked. When water is supplied to the side, it can be understood that discharge of water to the second water outlet nozzle 220 is blocked.

Meanwhile, referring to FIG. 33, it can be seen that if a forced shutdown is requested by the user before the discharge of a fixed amount of sterilizing water is completed, draining proceeds immediately.

In detail, when a user requests the discharge of sterilizing water, power is supplied (on) to the sterilizing water module 150, and the inflow valve 35 and the sterilizing water valve 44 are opened (on). And, the first outlet of the second water outlet valve 62 connected to the second water outlet nozzle 220 is opened (on).

And, before the sterilizing water is discharged in the correct quantity, a request for forced termination of the sterilizing water occurs. As above, when forced termination is input, the sterilizing water outlet is terminated and draining begins immediately.

In this process, residual water from the sterilizing water module 150 and the sterilizing water pipe 34 may be discharged through the drain passage 50. At this time, the sterilizing water module 150 is turned off, and the inlet valve 35 and the sterilizing water valve 44 remain open (on). Then, the second water discharge valve 62 closes the first outlet connected to the second water discharge nozzle 220 and opens (on) the second outlet connected to the drain pipe 50. For example, as described above, the time for purified water to be discharged from the drain pipe 50 may be set to 10 seconds.

And, when drain is completed, it enters standby mode. In standby mode, the sterilizing water module 150 remains turned off, and the inflow valve 35 and the sterilizing water valve 44 are closed.

In FIG. 33, when the first outlet of the second water outlet valve 62 is opened, the second outlet is blocked, and conversely, when the second outlet of the second water outlet valve 62 is opened, the first outlet is blocked. It can be understood.

That is, when water is supplied from the second water discharge valve 62 to the second water discharge nozzle 220, discharge of water to the drain pipe 50 is blocked, and from the second water discharge valve 62, the drain pipe 50 is blocked. When water is supplied to the side, it can be understood that discharge of water to the second water outlet nozzle 220 is blocked.

According to the above, if the sterilizing water is not discharged in a fixed amount, draining is performed immediately, and only when the sterilizing water is discharged in a fixed amount, the first washing is performed while supplying purified water to the second water discharge nozzle 220, and the first washing is performed. Once cleaning is complete, you can proceed with draining.

If the drain does not proceed for the set time and is forcibly terminated by a request for dispensing cold/hot/pure water, the drain is restarted after the dispensing of cold/hot/pure water, which has the advantage that piping cleaning can be carried out reliably.

Meanwhile, referring to FIG. 34, it can be seen that when a request is made for discharging cold/hot/pure water while draining is in progress, draining is stopped, and after discharging cold/hot/pure water proceeds, draining is resumed.

In detail, when a user requests the discharge of sterilizing water, power is supplied (on) to the sterilizing water module 150, and the inflow valve 35 and the sterilizing water valve 44 are opened (on). And, the first outlet of the second water outlet valve 62 connected to the second water outlet nozzle 220 is opened (on).

And, before the sterilizing water is discharged in the correct quantity, a request for forced termination of the sterilizing water occurs. As above, when forced termination is input, the sterilizing water outlet is terminated and draining begins immediately.

In this process, residual water from the sterilizing water module 150 and the sterilizing water pipe 34 may be discharged through the drain passage 50. At this time, the sterilizing water module 150 is turned off, and the inlet valve 35 and the sterilizing water valve 44 remain open (on). Then, the second water discharge valve 62 closes the first outlet connected to the second water discharge nozzle 220 and opens (on) the second outlet connected to the drain pipe 50. For example, as described above, the time for purified water to be discharged from the drain pipe 50 may be set to 10 seconds.

In the process of draining as described above, cold/hot/purified water is requested from the user before draining is completed.

When cold/hot/pure water discharge is input as described above, draining is completed and cold/hot/pure water discharge proceeds immediately. During the cold/hot/pure water dispensing process, the first water outlet valve 61 opens the first outlet connected to the first water outlet nozzle 210.

Then, the sterilizing water valve 44 is closed, and the inlet valve 35 remains open.

And, when the correct amount of cold/hot/pure water is dispensed, the cold/hot/pure water dispensing ends. To terminate the cold/hot/pure water discharge as described above, the first water discharge valve 61 blocks the first outlet connected to the first water discharge nozzle 21 0 and opens the second outlet connected to the drain pipe 50. can do.

Then, the drain is restarted.

At this time, the sterilizing water module 150 is turned off, and the inlet valve 35 and the sterilizing water valve 44 remain open (on). And, the second water discharge valve 62 closes the first outlet connected to the second water discharge nozzle 220 and maintains the second outlet connected to the drain pipe 50 in an open state. For example, as described above, the time for purified water to be discharged from the drain pipe 50 may be set to 10 seconds.

And, when drain is completed, it enters standby mode. In standby mode, the sterilizing water module 150 remains turned off, and the inflow valve 35 and the sterilizing water valve 44 are closed.

In FIG. 34, when the first outlet of the first water outlet valve 61 is opened, the second outlet is blocked, and conversely, when the second outlet of the first water outlet valve 61 is opened, the first outlet is blocked. It can be understood.

That is, when water is supplied from the first water outlet valve 61 to the first water outlet nozzle 210, discharge of water to the drain pipe 50 is blocked, and from the first water outlet valve 61, the drain pipe 50 is blocked. When water is supplied to the side, it can be understood that discharge of water to the first water outlet nozzle 210 is blocked.

In addition, when the first outlet of the second water outlet valve 62 is opened, the second outlet is blocked, and conversely, when the second outlet of the second water outlet valve 62 is opened, the first outlet is understood to be blocked. You can.

That is, when water is supplied from the second water discharge valve 62 to the second water discharge nozzle 220, discharge of water to the drain pipe 50 is blocked, and from the second water discharge valve 62, the drain pipe 50 is blocked. When water is supplied to the side, it can be understood that discharge of water to the second water outlet nozzle 220 is blocked.

According to the above, if the drain does not proceed for the set time and is forcibly terminated by a request for discharging cold/hot/pure water, the drain is restarted after discharging cold/hot/pure water, and the advantage is that piping can be cleaned clearly. there is.

<Water discharge control>

Figure 35 is a flowchart showing a control method for hot water discharge from a water dispensing device according to an embodiment of the present invention. And, Figure 36 is a flowchart showing a control method for hot water discharge from a water dispensing device according to another embodiment of the present invention.

Referring to FIG. 35, the hot water dispensing process when the hot water dispensed is the 'first cup' will be described.

The standards for first and repeat drinks can be set in various ways.

As an example, the first cup and the repeat cup may be determined based on whether the waiting time has elapsed after the 'n-1th' hot water dispenser when the 'nth' hot water dispensing command is input. If the waiting time has passed about 3 minutes, it can be judged as the first drink.

As another example, the first drink and the repeat drink may be determined based on the temperature of the hot water in the hot water tank or the temperature of the remaining water detected by the first water outlet valve 61.

As another example, the first half and the repeat half may be determined by the temperature difference between the temperature of the purified water flowing into the hot water tank and the remaining water detected by the first water outlet valve 61.

As another example, the first half and the repeat half may be determined by the temperature difference between the temperature of the hot water detected in the hot water tank and the remaining water sensed by the first water outlet valve 61.

First, when the user presses the water outlet button 240, a command to dispense hot water is input (S301).

Then, it is determined whether it is the first drink or a repeat drink, and if it is the first drink, preheating begins immediately (S302).

In the preheating state, the first outlet valve 61, the inlet valve 35, and the hot water valve 43 remain closed. (S303, S304, S305)

However, the first water discharge valve 61 may have its outlet connected to the first water discharge nozzle 210 closed and the outlet connected to the drain side open.

Then, after preheating is completed, the preset fixed output is supplied to the hot water tank 130, and real-time temperature control is performed (S306).

For example, in step S306, the output of the working coil (not shown) that heats the hot water tank 130 can be kept constant.

As another example, in step S306, the output of a working coil (not shown) that heats the hot water tank 130 can be adjusted in real time. In detail, factors such as the temperature of the hot water tank 130, the temperature of hot water heated in the hot water tank 130, the temperature of purified water flowing into the hot water tank 130, or the flow rate of purified water flowing into the hot water tank 130 are measured in real time. , and the output of the working coil (not shown) that heats the hot water tank 130 can be adjusted according to each factor.

The above preheating process may be carried out in the range of about 4.2 seconds to 5.0 seconds.

Afterwards, the inflow valve 35 and the hot water valve 43 are sequentially opened. (S307, S308)

Then, draining of the remaining water and/or hot water in the pipe begins. (S309)

When draining hot water, the drain side outlet of the first water outlet valve 61 is opened.

The drain time can be set in various ways. As an example, drain may proceed for approximately 3.6 seconds.

When draining is completed, hot water is discharged through the first water discharge nozzle 210.

For hot water discharge, the drain side of the first water discharge valve 61 is closed, and the outlet connected to the first water discharge nozzle 210 is opened (S310).

And, once the set amount of hot water is discharged, the hot water discharge is terminated. (S311)

Afterwards, the first water outlet valve 61 is closed. (S312)

And the hot water valve 43 and the inlet valve 35 are closed sequentially (S313, S314).

However, the first water discharge valve 61 may have its outlet connected to the first water discharge nozzle 210 closed and the outlet connected to the drain side open.

Hereinafter, with reference to FIG. 36, the hot water dispensing process when the dispensed hot water is a 'repeated cup' will be described.

The standards for first and repeat drinks can be set in various ways.

As an example, the first cup and the repeat cup may be determined based on whether the waiting time has elapsed after the 'n-1th' hot water dispenser when the 'nth' hot water dispensing command is input. If the waiting time has passed about 3 minutes, it can be judged as the first drink.

As another example, the first drink and the repeat drink may be determined based on the temperature of the hot water in the hot water tank or the temperature of the remaining water detected by the first water outlet valve 61.

As another example, the first half and the repeat half may be determined by the temperature difference between the temperature of the purified water flowing into the hot water tank and the remaining water detected by the first water outlet valve 61.

As another example, the first half and the repeat half may be determined by the temperature difference between the temperature of the hot water detected in the hot water tank and the remaining water sensed by the first water outlet valve 61.

First, when the user presses the water dispensing button 240, a hot water dispensing command is input. (S401)

And, preheating begins immediately (S402).

Afterwards, in the preheating state, the outlet temperature is compared with the reference temperature (S403).

Here, 'outlet water temperature' refers to the temperature of hot water detected by the temperature sensor mounted on the first water outlet valve 61.

As an example, the reference temperature may be set to 75°C.

If the outlet temperature is below the standard temperature (75℃), preheating is performed.

And, in order to predict the temperature of the hot water tank 130, after water discharge, it is determined whether the waiting time has passed longer than the standard time (S411).

In other words, the meaning of 'waiting time after dispensing' means the waiting time after dispensing 'n-1' hot water during the 'nth' hot water dispensing process.

If the waiting time does not exceed the standard time (about 3 minutes) after water discharge, the first water discharge valve 61, the inlet valve 35, and the hot water valve 43 remain closed.

In detail, the first water discharge valve 61 is controlled to close. (S412)

However, the first water discharge valve 61 may have its outlet connected to the first water discharge nozzle 210 closed and the outlet connected to the drain side open.

Then, the hot water valve 43 is controlled to close. (S413)

Then, the inlet valve 35 is controlled to close. (S414)

The hot water valve 43 is installed ahead of the hot water tank 130 based on the flow of water.

And, even if the hot water valve 43 is closed, when the water boils inside the hot water tank 43, the pressure of the hot water tank 43 increases, and some of the heated water may exit the hot water tank 130. You can. Then, the discharged hot water is drained through the first water discharge valve (61). Additionally, the temperature of the drained hot water is detected in real time by a temperature sensor installed on the inlet side of the first water outlet valve (61).

In addition, even if the waiting time has elapsed longer than the standard time (about 3 minutes), the first water outlet valve 61, the inlet valve 35, and the hot water valve 43 remain closed.

In detail, the first water discharge valve 61 is controlled to close. (S412)

However, the first water discharge valve 61 may have its outlet connected to the first water discharge nozzle 210 closed and the outlet connected to the drain side open.

Then, the hot water valve 43 is controlled to close. (S413)

Then, the inlet valve 35 is controlled to close. (S414)

Likewise, the hot water valve 43 is installed ahead of the hot water tank 130 based on the water flow.

And, even if the hot water valve 43 is closed, when the water boils inside the hot water tank 43, the pressure of the hot water tank 43 increases, and some of the heated water may exit the hot water tank 130. You can. Then, the discharged hot water is drained through the first water discharge valve (61). Additionally, the temperature of the drained hot water is detected in real time by a temperature sensor installed on the inlet side of the first water outlet valve (61).

Meanwhile, in step S403, if the water outlet temperature exceeds the reference temperature (75°C), preheating drain (primary drain) is performed.

For this purpose, the hot water valve 43 is controlled to open. (S421)

The hot water valve 43 is installed ahead of the hot water tank 130 based on the flow of water.

Then, the inlet valve 35 is controlled to open. (S422)

At this time, the outlet connected to the first water outlet nozzle 210 of the first water discharge valve 61 is closed, and the outlet connected to the drain side remains open.

Accordingly, the preheating drain proceeds, and when the set time elapses, the preheating drain ends (S423).

And, during the preheating drain process, the hot water exiting the hot water tank 130 is drained through the first water discharge valve 61. Additionally, the temperature of the drained hot water is detected in real time by a temperature sensor installed on the inlet side of the first water outlet valve (61).

As an example, the preheating drain may be performed for about 0.8 seconds to 1 second.

That is, in step S403, when the outlet water temperature exceeds the reference temperature (75°C), the hot water valve 43 and the inlet valve 35 are opened, and preheating and draining are performed for about 1 second, and in step S403, If the outlet water temperature is below the standard temperature (75°C), only preheating is performed with the hot water valve 43 and the inlet valve 35 closed.

The ‘preheating time’ as described above may last for about 1.0 to 5.2 seconds.

Afterwards, the preset fixed output is supplied to the hot water tank 130, and real-time temperature control is performed (S430).

That is, after step S414 or step S423, a preset fixed output is supplied to the hot water tank 130, and real-time temperature control is performed (S430).

Then, determine whether the water is discharged intermittently (S431).

Whether or not the water is discharged intermittently can be determined according to the judgment in step S411.

For example, in step S411, if the waiting time is longer than the standard time after water extraction, it is determined as intermittent water extraction in step S431.

As another example, in step S411, if the waiting time is less than the standard time after water extraction, it is determined in step S431 that it is not intermittent water extraction and is a repeated cup.

In step S431, if it is determined that there is intermittent water discharge, the water discharge temperature detected by the temperature sensor in real time is compared with the second reference temperature (about 88°C). (S432)

On the other hand, in step S431, if it is not determined to be an intermittent water extraction, step S432 is omitted, and step S441, which will be described later, is performed.

Meanwhile, in step S432, if the real-time water discharge temperature exceeds the second reference temperature (about 88°C), hot water discharge proceeds.

For this purpose, first, the hot water valve 43 is opened (S441).

Then, the inflow valve 35 is opened (S442).

Afterwards, hot water is discharged. (S443)

And, for hot water discharge, the drain side of the first water discharge valve 61 is closed, and the outlet connected to the first water discharge nozzle 210 is opened (S444).

And, once the set amount of hot water is discharged, the hot water discharge is terminated. (S461)

Afterwards, the first water outlet valve 61 is closed (S462).

And the hot water valve 43 and the inlet valve 35 are closed sequentially (S463, S464).

However, the first water discharge valve 61 may have its outlet connected to the first water discharge nozzle 210 closed and the outlet connected to the drain side open.

Meanwhile, in step S432, if the outlet temperature is below the second reference temperature (about 88°C), additional draining is performed before hot water is dispensed.

For this purpose, the hot water valve 43 is controlled to open. (S451)

Then, the inlet valve 35 is controlled to open. (S452)

At this time, the outlet connected to the first water outlet nozzle 210 of the first water discharge valve 61 is closed, and the outlet connected to the drain side remains open.

Therefore, additional draining proceeds, and when the set time elapses, additional draining ends (S453).

When the additional drain is completed as described above, the drain side of the first water discharge valve 61 is closed and the outlet connected to the first water discharge nozzle 210 is opened to discharge hot water (S444).

And, once the set amount of hot water is discharged, the hot water discharge is terminated. (S461)

Afterwards, the first water outlet valve 61 is closed (S462).

And the hot water valve 43 and the inlet valve 35 are closed sequentially (S463, S464).

In summary, if the outlet temperature exceeds 75°C, preheating drain (primary drain) may occur during the preheating process.

This is to prevent boiling in the hot water tank.

On the other hand, when the outlet temperature is 75°C or lower, the possibility of boiling occurring in the hot water tank is low, so the preheating drain (primary drain) is omitted and only preheating can be performed. However, even at this time, a small amount of hot water is drained due to boiling in the hot water tank.

Additionally, after preheating, if the temperature of the hot water detected by the first water outlet valve 61, that is, the 'outlet temperature', is 88°C or lower, additional draining (secondary draining) may proceed.

On the other hand, after preheating, if the temperature of the hot water detected by the first water outlet valve 61, that is, the 'discharge temperature', exceeds 88°C, additional drain (secondary drain) is omitted and hot water discharge can proceed immediately. .

Here, the time of the additional drain (secondary drain) may vary depending on the water temperature.

The higher the temperature of the water flowing into the hot water tank, the shorter the additional drain time may be.

For example, if the temperature of the water flowing into the hot water tank is less than 30°C, the additional drain time may be 9.5 seconds minus the preheating time.

As another example, if the temperature of the water flowing into the hot water tank is above 30°C but below 45°C, the additional drain time may be 9.0 seconds minus the preheating time.

As another example, if the temperature of the water flowing into the hot water tank is above 45°C but below 60°C, the additional drain time may be 5.0 seconds minus the preheating time.

As another example, if the temperature of the water flowing into the hot water tank is 60°C or higher, the additional drain time may be omitted.

Although not shown, when a hot water dispensing command is input at the nth outlet and cold water is dispensed at the n-1th outlet, draining is unconditionally performed. Here, draining may be performed within a range where all remaining water in the flow path between the hot water tank and the first water discharge valve 61 can be discharged.

In addition, even when a hot water dispensing command is input at the nth outlet and purified water is dispensed at the n-1th outlet, draining continues unconditionally. Here, draining may be performed within a range where all remaining water in the flow path between the hot water tank and the first water outlet valve 61 can be discharged.

On the other hand, only when a hot water dispensing command is input at the nth outlet and hot water is discharged at the n-1th outlet, drain is performed depending on the temperature of the remaining water detected by the first water outlet valve 61 or immediately without draining. Exiting can proceed.

Additionally, at the nth water outlet, draining may proceed unconditionally even when a cold water outlet command is input. Here, draining may be performed within a range where all remaining water in the flow path between the cold water tank and the first water discharge valve 61 can be discharged.

Hereinafter, another example of the process in which hot water is discharged from the water dispensing device according to the present invention will be described.

First, hot water is requested from the user.

Afterwards, it is determined whether the standard time has elapsed after the previous water extraction.

As an example, the standard time may be set to 3 minutes.

If hot water is requested from the nth outlet, and the time elapsed after hot water is discharged from the n-1th outlet is longer than the reference time, only preheating is performed without draining.

In other words, if hot water is discharged in succession, and the time between consecutive hot water discharges is longer than the standard time, it is judged to be the first cup, and only preheating is performed without draining. The reason why only preheating is performed without draining is because boiling due to overheating of the hot water tank does not occur.

As an example, preheating may proceed for about 1.8 seconds to 3.9 seconds. The preheating time may vary depending on the target hot water temperature, the temperature of the water flowing into the hot water tank, the water flow rate, and the output supplied to the hot water tank.

Afterwards, when preheating is completed, the outlet water temperature is compared with the reference temperature.

As an example, the 'outlet water temperature' may mean the temperature of the remaining water detected by the first water outlet valve 61.

As another example, the 'outlet water temperature' may mean the temperature of hot water discharged from the hot water tank.

Here, the reference temperature may be set to about 88°C.

If the water discharge temperature is higher than the reference temperature, hot water is discharged immediately from the first water discharge nozzle 210.

Then, when the set time elapses or hot water is dispensed at the target flow rate, hot water dispensing ends.

On the other hand, when the water discharge temperature is lower than the reference temperature, after selective draining, hot water is discharged from the first water discharge nozzle 210.

At this time, the drain time may vary depending on the temperature of the water flowing into the hot water tank or the temperature of the hot water tank itself.

The higher the intake temperature of the water flowing into the hot water tank or the temperature of the hot water tank itself, the shorter the drain time may be.

For example, if the intake temperature of the water flowing into the hot water tank or the temperature of the hot water tank itself is less than 30°C, the drain time may be 8.5 seconds minus the preheating time.

As another example, if the temperature of the water flowing into the hot water tank or the temperature of the hot water tank itself is above 30°C and below 45°C, the drain time may be 8.0 seconds minus the preheating time.

As another example, if the temperature of the water flowing into the hot water tank or the temperature of the hot water tank itself is above 45°C and below 60°C, the drain time may be 4.0 seconds minus the preheating time.

As another example, if the intake temperature of the water flowing into the hot water tank or the temperature of the hot water tank itself is 60°C or higher, the drain time may be omitted. And, hot water is discharged immediately from the first water discharge nozzle 210.

Hereinafter, another example of the process in which hot water is discharged from the water dispensing device according to the present invention will be described.

First, hot water is requested from the user.

Afterwards, it is determined whether the standard time has elapsed after the previous water extraction.

As an example, the standard time may be set to 3 minutes.

If hot water is requested from the nth outlet, and the time elapsed after hot water is discharged from the n-1th outlet is less than the reference time, draining is performed simultaneously with preheating.

That is, if hot water is discharged in succession and the time between consecutive hot water discharges is less than the standard time, it is judged to be a repeat cup, and draining is performed simultaneously with preheating. The reason why draining occurs simultaneously with preheating is to prevent boiling due to overheating in the hot water tank.

The drain time may be within 0.6 seconds to 1.8 seconds.

And, when draining and preheating are completed, hot water is discharged immediately from the first water discharge nozzle 210.

Then, when the set time elapses or hot water is dispensed at the target flow rate, hot water dispensing ends.

In the case of the present invention as described above, a temperature sensor is mounted on the first water outlet valve 61 disposed adjacent to the first water outlet nozzle 210. Accordingly, the temperature satisfaction of the cold water and hot water discharged through the first water outlet nozzle 210 can be improved.

If the temperature sensor is placed on the side of the water purifier body installed inside the sink, even if the temperature of the hot or cold water in the water purifier body is satisfied, the long pipe connecting the water purifier body inside the sink and the water outlet outside the sink is used to There may be a change in temperature, which may result in the user not being supplied with hot or cold water at a satisfactory temperature.

On the other hand, in the case of the present invention, a temperature sensor is mounted on the first water outlet valve 61 disposed near the water outlet nozzle through which water is supplied to the user, so the user can receive hot or cold water at a desired temperature.

As in the present invention, when a temperature sensor is mounted on the first water discharge valve 61, the temperature of hot or cold water is detected by the temperature sensor, and if the detected temperature of hot or cold water is not satisfactory, hot or cold water from the pipe Instead of supplying it to the water outlet nozzle, it is drained, and hot or cold water is supplied to the water outlet nozzle only when the temperature of the hot or cold water detected by the temperature sensor is satisfactory. In addition, the distance between the water outlet nozzle and the first water outlet valve 61 is formed to be short, and there is almost no change in the temperature of the water while hot or cold water flows from the first water outlet valve 61 to the water outlet nozzle. Even in the case where the water purifier main body is placed inside the sink and the water outlet nozzle is placed outside the sink, the water outlet nozzle and the water outlet valve 61 are disposed adjacent to each other, and the temperature sensor is mounted on the first water outlet valve 61. Due to the structure, the user can receive hot and cold water at the desired temperature.

Additionally, the drain time may be set differently depending on the temperature of the purified water flowing into the hot water tank.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications, changes, and substitutions can be made by those skilled in the art without departing from the essential characteristics of the present invention. will be.

In addition, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments and the attached drawings. .

The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

Claims (13)

a main body disposed inside the sink and supplying drinking water for the user to drink;
a water outlet extending from the upper surface of the sink;
a drinking water pipe extending from the main body to the water outlet, through which the drinking water flows;
A first water outlet valve connected to the drinking water pipe and guiding the direction of movement of the drinking water; and
A first drain pipe branched from the first water outlet valve and configured to discharge the drinking water to the outside,
The drinking water pipe is,
A first drinking water pipe connecting the main body and the first water outlet valve, and
It includes a second drinking water piping unit connecting the first water outlet valve and the water outlet unit,
A water dispensing device configured to move the drinking water supplied from the first drinking water piping unit to the second drinking water piping unit or the first drain piping according to the operation of the first water outlet valve. According to claim 1,
The first water outlet valve,
A first inlet through which the drinking water flows from the first drinking water piping unit,
A first outlet through which the drinking water is discharged to the second drinking water piping unit,
A first drain through which the drinking water is drained into the first drain pipe, and
It includes a first plunger configured to move to one side and the other side by an electric signal,
When the first plunger moves to one side, a drinking water discharge passage connecting the first inlet and the first outlet is formed,
A water dispensing device in which a drinking water drain passage connecting the first inlet and the first drain is formed when the first plunger moves to the other side. According to clause 2,
The first water discharge valve is formed at the lower end of the first plunger and further includes a first sealing portion that prevents leakage of the drinking water,
The drinking water discharge path is located on the other side of the first sealing part,
The water dispensing device wherein the drinking water drainage passage is located on one side of the first sealing part. According to claim 1,
The main body further supplies sterilizing water for sterilization,
a sterilizing water pipe extending from the main body to the water outlet, through which the sterilizing water flows;
a second water outlet valve connected to the sterilizing water pipe and guiding the direction of movement of the sterilizing water; and
A second drain pipe branched from the second outlet valve and configured to discharge the sterilizing water to the outside,
The sterilizing water pipe is,
A first sterilizing water pipe connecting the main body and the second water outlet valve, and
It includes a second sterilizing water piping unit connecting the second water outlet valve and the water outlet unit,
A water dispensing device configured to move the sterilizing water supplied from the first sterilizing water piping unit to the second sterilizing water piping unit or the second drain piping according to the operation of the second water outlet valve. According to clause 4,
The second outlet valve is,
a second inlet through which the sterilizing water flows from the first sterilizing water piping unit;
A second outlet through which the sterilizing water is discharged to the second sterilizing water piping unit,
a second drain through which the sterilizing water is drained into the second drain pipe, and
It includes a second plunger configured to move to one side and the other side by an electric signal,
When the second plunger moves to one side, a sterilizing water discharge passage connecting the second inlet and the second outlet is formed,
A water dispensing device in which a sterilizing water drain passage connecting the second inlet and the second drain is formed when the second plunger moves to the other side. According to clause 5,
The second water outlet valve is formed at the lower end of the second plunger and further includes a second sealing part that prevents leakage of the sterilizing water,
The sterilizing water discharge passage is located on the other side of the second sealing part,
The water dispensing device wherein the sterilizing water drain path is located on one side of the second sealing part. According to clause 4,
The outlet section,
a body extending upward from the upper surface of the sink, and
It includes a water outlet nozzle rotatably coupled to the body,
The outlet nozzle is,
A first water outlet nozzle with the drinking water pipe extended therein,
A water dispensing device that is located below the first water outlet nozzle and includes a second water outlet nozzle inside which the sterilizing water pipe extends. According to clause 7,
The outlet section,
The water dispensing device further includes an inner member disposed inside the body, fixed to the sink, and formed in the shape of a hollow tube with open upper and lower ends. According to clause 8,
The body is,
A first body located below the second water outlet nozzle, and
It includes a second body portion located between the first water outlet nozzle and the second water outlet nozzle,
The first water outlet nozzle includes a first insertion portion that extends downward and is inserted into the second body,
The second water outlet nozzle includes a second insertion portion that extends downward and is inserted into the first body,
The inner member is a water dispensing device that is inserted and positioned inside the first insertion part and the second insertion part. According to clause 8,
A water dispensing device wherein the first water outlet nozzle and the second water outlet nozzle are coupled to be able to rotate independently with respect to the inner member. According to clause 8,
The water outlet further includes a penetrating member that penetrates the sink,
The penetrating member is coupled to a lower end of the inner member to secure the inner member to the sink. According to clause 7,
A water dispensing device in which the first water outlet nozzle and the second water outlet nozzle are arranged to be vertically spaced apart. According to clause 7,
The first water outlet nozzle is formed on the bottom of the end and includes a drinking water outlet through which the drinking water is dispensed,
The second water outlet nozzle is formed on the bottom of the end and includes a sterilizing water outlet through which the sterilizing water is discharged,
A water dispensing device in which the sterilizing water outlet is located closer to the body than the drinking water outlet.

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