KR20150039949A - Apparatus for suppling Water - Google Patents

Abstract

The present invention relates to a water supply apparatus for providing drinking water and a method of controlling the same automatically. According to an embodiment of the present invention, the apparatus comprises: a hot-water tank and a cold-water tank, which are supplied water from a reservoir water tank; and a carbonic acid mixer tube for generating carbonated water from water and carbonic acid gas, wherein a discharge pipe having the carbonated water discharged from the carbonic mixer tube is connected to a mixing unit having a diffusion space which increases flowing areas of the carbonated water, and the mixing unit includes: a case forming a space unit having the carbonated water flew in; a mounting unit which is combined with the case to be able to move and of which a part is inserted into the space unit to form a diffusion space between the mounting unit and the inner surface of the case; and a control unit which varies a cross section of the diffusion space by moving the mounting unit for the case.

Description

{Apparatus for suppling Water}

The present invention relates to a water supply device for supplying drinking water and an operation system for operating the same, and includes water treatment for generating carbonated water.

As the environmental pollution became serious with industrial development, pollution of water resources directly connected to diet has been increased. In recent years, consumer interest in healthy drinking water is increasing. In accordance with the trend of the water market, there is an increasing number of companies manufacturing bottled water with clean groundwater. Since the supply of natural water is limited and it is expensive compared to tap water, the water purifier industry that cleans tap water is also being developed.

One of the development aspects of the water supply system is the water treatment according to the consumer's preference. Consumers want to drink cold or warm water, especially as the season changes. Thereby providing a cold water heater for adjusting the temperature of the water. Currently, the cold and hot water dispenser is provided as an additional function to the dispenser device provided by the bottled water supplier, and it is a general tendency to be provided as an additional function in a water purifier that provides purified water for tap water.

One of the development directions of the water supply device for consumers' taste is the function of generating and supplying carbonated water. The production of carbonated water is produced by dissolving carbon dioxide in water, which is almost the same as the method of producing carbonated beverages such as cola cider and draft beer. The quality of the carbonated water depends on the amount of carbon dioxide dissolved in the water, that is, the degree of detonation depending on the carbon dioxide gas pressure.

The conditions for increasing carbon dioxide pressure are known to be low temperature and high pressure. However, it is difficult to equip low-temperature and high-pressure equipment only next to large-scale beverage manufacturing plants. In addition, it is not easy to increase the carbonic acid gas pressure of the carbonated water coming out because the inexpensive production cost and the whole size of the apparatus are small and the favorable domestic carbonated water supply device must deal with the carbon dioxide within the safe pressure range.

Korean Patent Publication No. 10-2005-0017917 (Feb. 23, 2005) Korean Patent Registration No. 10-0735911 (June 28, 2007) Korean Patent Registration No. 10-0735913 (June 28, 2007) Korean Patent Registration No. 10-0735914 (June 28, 2007) Korean Patent Registration No. 10-0871616 (November 26, 2008) Korean Patent Publication No. 10-2010-0055991 (2010.05.27) Korean Patent Publication No. 10-2012-0016682 (Feb. 27, 2012) Korean Patent Publication No. 10-2012-0015952 (Feb. 22, 2012) Korean Patent Publication No. 10-2012-0015951 (Feb. 22, 2012) Korean Patent Registration No. 101-177499 (Aug. 21, 2012) Korean Patent Publication No. 10-2013-0044988 (2013.05.03) Korean Utility Model Registration No. 20-0314754 (May 15, 2003)

The present invention has been made with the intention of providing a water supply device and accessories therefrom after processing the supplied water in accordance with various tastes of consumers. Particularly water treatment means for efficiently producing carbonated water.

Thereby increasing the efficiency in the water treatment process required to be finally provided to consumers, making it possible to miniaturize the water supply device, and enabling smooth operation.

Other objects and advantages of the present invention will become apparent to those skilled in the art from the following detailed description.

In order to solve the above problems, the present invention provides, as an embodiment, a water supply device including a hot water passing water chiller for receiving water from a low water cistern, and a carbonic acid mixer cistern for generating carbonated water from water and carbonic acid gas, A mixing unit having a diffusion space for gradually increasing a flow area of the carbonated water is connected to a carbonated water discharge pipe through which carbonated water is discharged from the mixer case, the mixing unit includes a case forming a space portion into which carbonated water flows, A mounting part which is coupled to the case so as to be movable in position with respect to the case and which is inserted into the space part to form the diffusion space between the case and the inner surface of the case, And a control unit for varying the temperature of the water.

Here, the adjusting portion can vary the sectional area of the diffusion space as it is rotated by the lever.

A technique for reducing mixing with water that has been stored in a cold water tank or a carbonic acid mixer can be suggested. Specifically, a plurality of branch pipes for dispersing water to be injected may be connected to an end of a cold water tank or a supply pipe through which water is injected into the carbonic acid mixer tank.

And a cooling means for cooling the carbonic acid mixer tube passing through the cold water, wherein the cooling means is branched from a main supply pipe through which the coolant is discharged, the carbonic acid mixer tube And a coolant flow control valve for controlling the flow of the coolant supplied through the cold water pipe conduit, the carbonated pipe conduit pipe, the cold water pipe conduit, and the carbonated pipe conduit, respectively, so that energy efficiency can be increased.

The user can be informed of the replacement time of the carbonic acid gas container, thereby increasing convenience. In the present invention, the carbonic acid gas is supplied from a replaceable carbonic acid gas cylinder. When the measured pressure of the carbonic acid gas in the carbonic acid gas cylinder falls below a preset reference pressure value, a detection sensor unit for sending a replacement signal to the user is presented .

The drain mixer is provided with a drain pipe for discharging water inside and a drain valve for opening and closing the drain pipe. The opening operation of the drain valve is performed when a pair of operation buttons having different functions are simultaneously operated .

And a water dispenser for discharging the carbonated water passing through the carbonic acid mixer and the cold / hot water, the water / carbonic acid gas producing water and the carbonic acid gas from the carbonic acid gas, The hot water tank is filled with water, and hot water stored by water injected by a fluid pump is pushed out and discharged through the dispenser. The hot water tank is filled with water, The dispenser is installed at a relatively lower height than the dispenser, and the hot water is filled in the hot water tank by injecting the water of the lower water tank in a state where the hot water opening and closing valve for opening and closing the hot water discharge pipe, When the water level sensor in the reservoir detects a certain water level in the low water cistern, the hot water on / off valve is locked The hot water tank to ensure the water level of the group, we can build a hot water bottle or water bottle so that the system automatically in the appendix.

The low-water tub includes an air supply unit for sucking outside air into the reservoir, the air supply unit forms a flow path through which the gas flows, and an air piping unit in which a hollow part communicating with the flow path is formed, A buoyant ball which is able to flow upward and downward within the reservoir and which is raised by the buoyant force in accordance with the rise of the water level in the reservoir to close the flow path and a spring member for elastically supporting the lower end of the buoyancy ball to complement the lifting force of the buoyancy ball Thereby improving operational reliability.

According to the embodiment of the present invention, operational efficiency is improved during the process of generating hot water, cold water, carbonated water, and the like in the water supply device, and the taste of the carbonated water to be provided is improved to improve the satisfaction of the consumer.

The present invention also contemplates a water supply device that is intended to be manufactured in the smallest possible size, such as a water purifier for tackifiers, which can reduce the volume occupied by the components to improve space utilization, .

It is possible to smoothly operate the various driving elements provided in the water supply device, thereby facilitating the design of the water supply device and reducing the failure rate as the automatic load is reduced during operation and improving the operational reliability.

The effects of the present invention will be clearly understood and understood by those skilled in the art, either through the specific details described below, or during the course of practicing the present invention.

1 is a schematic perspective view of a water supply apparatus according to an embodiment of the present invention;
Fig. 2 is a schematic view showing a main configuration of the embodiment shown in Fig. 1. Fig.
3 is a schematic view showing a main configuration for supplying hot water;
4 is a schematic view showing a main configuration for supplying cold water;
5 is a schematic view showing a main configuration for supplying carbonated water;
6 is a schematic view showing a main configuration for supplying carbonated water according to another embodiment;
FIG. 7 is a perspective view showing a separate mixing unit employed in the embodiment of the present invention; FIG.
8 is a sectional view showing a mixing unit;
9 is a schematic view showing the use state of the mixing unit shown in Fig.
10 is a sectional view showing a structure of a carbonic acid mixer container.
11 is a perspective view showing a lever for adjusting a mixing unit;
12 is a perspective view showing the backflow prevention valve employed in the embodiment of the present invention.
13 is a sectional view showing the use state of the check valve shown in Fig.
14 is a perspective view of a regulator employed in an embodiment of the present invention;
Fig. 15 is an enlarged cross-sectional view of the bumper shown in Fig. 14; Fig.
16 is a cross-sectional view of an air supply portion connected to the reservoir.

Hereinafter, the configuration, functions, and functions of the cold water tank and the water supply device including the water tank according to the present invention will be described with reference to the accompanying drawings. However, the names of the same or similar components throughout the embodiments shall be used in unison.

In the present description, 'liquid', 'cold water', 'hot water', 'raw water' and 'carbonated water' all mean water. Therefore, 'cold water', 'hot water', 'enemy water' and 'carbonated water' can be called 'water' or 'liquid'. 'Cold water' and 'hot water' are used to distinguish by temperature, 'carbonated water' is to drink water by containing carbon dioxide gas, 'raw water' is treated to increase or decrease the temperature or to increase the solubility of carbon dioxide Means water before being subjected to various treatments, water as an object to be injected into any container, or water before any treatment step is performed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not to be construed as limiting the technical spirit of the invention. It is to be understood that the invention is not to be limited by any of the details of the description to those skilled in the art from the standpoint of a person skilled in the art that any or all of the drawings shown in the drawings are not necessarily the shape,

1 and 2 relate to a water supply apparatus according to an embodiment of the present invention.

In FIG. 1, the water supply device 100 has a body that forms an outer appearance, and purifies the water supplied from outside to use it as raw water. Here, the water supplied from outside may be tap water or provided in a separate container.

The body 1 is provided on its front surface with an operation portion 2 to be operated by a user. The operation section 2 includes a plurality of operation buttons 21. [ The number of operation buttons 21 varies depending on the type of service provided by the water supply device. In the case of supplying cold water, hot water and carbonated water, the operation portion is provided with at least three operation buttons in accordance with the number of water to be provided. Further, an additional operation button is provided to turn on / off operation of the power supply and other operation commands.

The operation section 2 has a display window 22. The display window 22 allows the user to confirm the operation command selected when the user presses the operation button, and can be used for visualizing the various warning messages, the state of the water supply device, etc. . In another embodiment not shown, the display window may be omitted. In another embodiment, the operation unit may include a speaker for outputting sound or a microphone for recognizing a voice command. In this way, the operation unit can be provided with a human interface means that has been already known.

A cock 711 of the structure of the dispenser 70 is exposed on the front surface of the body 1. In the drawing, one of the faucets ejects one of hot water, cold water, carbonated water, and the like selected by the user through the operation button. Alternatively, a plurality of nipples may be provided depending on the kind of water that the water supply device can service.

Inside the body, various parts for replacing raw water generated by purifying tap water or the like with hot water, cold water or carbonated water are mounted.

FIG. 2 schematically illustrates various components mounted inside the body.

The water supply device 100 includes a low water bottle 30, a hot water bottle 40, a cold water bottle 50, a carbonic acid mixer bottle 60 and a dispenser 70. A cooling means 90 for cooling the cold water tank to an appropriate temperature, and a heating means for heating water in the hot water tank. And a carbonic acid supply member 400 for generating a carbonic acid mixer canister. Also, a pump (not shown) for operating and monitoring various sensors and pumps for transferring water between various cylinder members provided in the water supply device is provided.

In addition, water purification means 200 is provided to purify tap water and the like. The water purification means 20 may comprise filters 210. The filters 210 are reverse osmosis filters or hollow fiber membrane filters as is known. These filters function to remove various harmful components contained in the supplied water. Since the kind and role of the filter are the same as those already known, a detailed description thereof will be omitted.

The illustrated water supply device 100 includes all of the above-mentioned configurations for providing cold water, hot water and carbonated water. However, the water supply device of another embodiment may not have some configuration such as a hot water tank, a low water tank, or a carbonic acid mixer tank. As a result, the service range is reduced by reducing the number of kinds of water to be provided to the consumer, but in this case, it is easy to manufacture the water supply device in a small size enough to use the water supply device on a table, and the design of the control module becomes easy.

2 and the like provides a space for temporarily storing the raw water supplied from the outside. In particular, the reservoir 30 can hold a given level of water provided through the filter means 200, as shown in FIG. That canteen connects to a canton, a canton? Opening and closing means for opening and closing the pipe supplied through the filter means is provided so that the water level of the low water cistern can be maintained at a certain level. Or the water storage tank 30 can receive a certain amount of water by receiving water from a water tank or the like. In the embodiment of the present invention, the reservoir (30) is located at an upper position inside the body (1).

The reservoir can be constructed to have a closed space except for the inlet and outlet. As the water is discharged, air is needed to fill the empty space of the canister so that the raw water stored through the outflow port can be discharged smoothly before the fresh water is introduced. To this end, the reservoir 30 is provided with an air supply unit 300 for sucking outside air into the reservoir. 16, the air supply unit is specifically shown.

The air supply unit 300 includes an air piping unit 310 forming a flow path 311 through which the air moves, a floating ball 320 placed on the hollow unit 320 formed in the air piping unit 310 and vertically movable, And a spring member 330 for elastically supporting the lower end of the buoyancy ball.

A flow path 311 is formed in the air piping 310 in a vertical direction. The diameter of the hollow portion 320 formed in the air piping 310 is larger than the diameter of the flow path 311. In order to insert a buoyancy ball 320 having a larger diameter than the flow path 311 into the hollow part 320, the air piping part is an assembly of several parts. The upper end of the hollow portion is provided with a gasket 340 that contacts the raised buoyancy ball. The air pipe 310 is provided with a filter 350 so as to filter foreign substances in the air to be sucked.

The buoyant ball 320 floats in the hollow portion 320 of the water flowing backward from the lower water tube 320 and contacts the gasket 340 to close the oil passage 311 to prevent water from leaking backward.

The spring member 330 elastically supports the bottom of the hollow portion 320 and the lower end of the buoyancy ball 320 to help the buoyancy ball 320 rise. The spring member 330 is in a compressed state during normal operation in which no backflow occurs due to the weight of the buoyancy ball. Therefore, the outside air flows along the flow path and flows into the low water cistern. The buoyant force of the buoyancy ball 320 and the elastic restoring force of the spring member 330 are combined to raise the buoyancy ball 320 toward the gasket 340. [

In general, since the range in which the weight of the buoyancy ball can be arbitrarily adjusted is narrow, in the conventional technology, in the valve structure in which the buoyancy ball rises as the water level rises and the flow path is closed by making contact with the gasket, the adhesion between the light buoyancy ball and the gasket Not good. Leakage has therefore often occurred between the buoyancy ball and the gasket.

According to the present invention, the spring member 330 compensates the lifting force of the buoyancy ball 320, thereby increasing the contact force between the buoyancy ball 320 and the gasket 340 as compared with the conventional art. As a result, the buoyancy of the buoyancy ball and the elastic restoring force of the spring member due to the rise of the water level in the hollow portion are added, so that the oil passage can be quickly and stably closed. Closure of the stable flow path prevents the filter from wetting in contact with water, so that the operation of the filter can be reliably performed.

Meanwhile, the hot water tank 40, the cold water tank 50, and the carbonic acid mixer tank 60, which are applied to the embodiment of the present invention, are basically provided as an airtight container. The action of discharging the treated cold water, hot water or carbonated water to the outside of the airtight container is such that as the new raw water is injected into the airtight container, the water stored by the pressure gradient inside the airtight container is discharged to the outside.

For example, referring to FIG. 3, when water in the water reservoir 30 is injected into the water reservoir 40 by the fluid pump 80 in a state where the hot water is filled in the water reservoir 40, The hot water in the hot water tank 40 is pushed out to the hot water discharge pipe 412 connected to the dispenser 70 in proportion to the injected amount.

In this way, the water is discharged even when the fluid pump is omitted by using the potential energy of the water. That is, the dispenser is disposed lower than the water tank and the hot water tank is disposed lower than the dispenser. When the hot water opening / closing valve is opened in the dispenser, the water in the lower water tank flows naturally into the hot water tank, and hot water is discharged from the dispenser.

In the illustrated embodiment, the fluid pump 80 is provided in the pipe connecting the water reservoir 30 and the hot water tank 40, thereby increasing the flow rate of the hot water discharged and discharging the hot water regardless of the height of the dispenser . Thus, the dispenser 70 can be disposed at a high position of the body, thereby eliminating the inconvenience that the user has to bend the waist to receive water.

The cold water tank 50 and the carbonic acid mixer tank 60 shown in FIGS. 4 and 5 are also made of airtight containers 511 and 611, and cold or carbonated water stored in the airtight container by the newly introduced raw water is supplied to the dispenser 70 And is discharged. The supply pipe (-) through which the raw water is injected into the airtight container in the cold water tank 50 and the carbonic acid mixer tank 60 is connected to the upper portion of the airtight container in a short length, while the cold water discharge pipe 513 or The carbonated water discharge pipe 614 through which the carbonated water escapes is formed long so as to be close to the bottom of the airtight container. This is because the stored cold water leaks out the treated water staying on the bottom of the airtight container when the carbonated water is discharged to the outside. It raises the temperature of the cold water mixed with cold water or carbonated water stored in the airtight container Or to significantly reduce the carbonic acid gas pressure of the discharged carbonated water.

3, a hot water discharge pipe 412 protrudes into the inside of the hot water tank 40 on the premise that hot water is filled in the hot water tank 40, 413 are formed so as to be close to the bottom of the hot water tank 40. Therefore, hot water can be discharged to the hot water discharge pipe before the freshly injected raw water is completely mixed with the stored water.

The carbonic acid mixer tank 60 holds the carbonic acid gas and water supplied from the carbonic acid supply member 400 together to generate carbonated water.

2 and 5, the carbonic acid supply member includes a carbonic acid gas pipe for providing carbon dioxide gas, a regulator for lowering the high pressure of the carbonic acid gas pipe to a low pressure within the use range, a pressure sensor for measuring the gas pressure, and some check valves for preventing backflow. Here, the carbonated gas cylinder can be replaced with a consumable product. Normally, a part of the body can be opened to replace the carbonic acid gas tank installed inside the body.

The operation of the carbonic acid supply member 400 is monitored by the control module. The pressure of the carbonic acid gas flowing into the carbonic acid mixer cylinder 60 through the carbonic acid gas cylinder 410 is transmitted to the control module as an electric signal through the pressure sensor 420. In the control module, when the residual gas pressure of the carbonic acid gas pipe 410 measured through the pressure sensor 420 is lowered to a predetermined reference pressure value or less, a signal for requesting the user to replace the carbonic acid gas pipe 410 And a sensor unit (not shown). The detection sensor unit notifies the user of the replacement request of the carbonic acid gas container through various expression means such as a visual indication of the replacement warning through the display window or a replacement request sound every predetermined period through the speaker.

Further, the detection sensor unit may continuously display the measured pressure of the pressure sensor in a numerical value or a graph on the display window while the water supply device is in use.

Returning to the carbonic acid mixer cylinder 60, a certain amount of water and carbonic acid gas coexist in the normally operated carbonic acid mixer cylinder 60 at a high pressure. As time elapses, carbon dioxide is dissolved in water, so that the water in the carbonic acid mixer vessel 60 can become carbonated water of high concentration. As described above, fresh water is supplied to the carbonic acid mixer canister to discharge the carbonated water, and the atmospheric pressure and the pressure inside the carbonic acid mixer canister 60 And the carbonated water is naturally discharged by the difference.

1, the line indicated by the dashed line indicates the movement path of the refrigerant supplied to the cold water tank 50 and the carbonic acid mixer cylinder 60. [

Cooling means are required to generate cold water in the cold water tank. In addition, the cooling means 90 is also required to generate carbonated water having a carbonic acid gas pressure of a high pressure in the carbonic acid mixer cylinder 60. In the drawings and the following description, it is assumed that the cooling operation by the cooling means 90 is applied to both of the cold water passing carbonic acid mixer tanks. In other embodiments, however, the cooling means may be connected only to the cold water reservoir.

The cooling means 90 is connected to the cold water tank 50 and the carbonic acid mixer tank 60 so that water (cold water, carbonated water) contained in the cold water tank 50 and the carbonic acid mixer tank 60 is appropriately cooled. The cold water tank 50 can exhibit its original function of providing cold water to the consumer by the cooling means 90. In the carbonic acid mixer tank 60, the solubility of carbon dioxide is increased to increase the carbonic acid concentration, The concentration can be maintained.

The cooling means (90) includes a coolant supply portion (911) for supplying cool coolant, and piping through which the coolant flows.

Here, the refrigerant supply unit 911 uses a refrigeration cycle as is known. Accordingly, the water supply device includes devices of a refrigeration cycle including an evaporator, a compressor, a condenser, and an inflator. Since these configurations are the same as those already known, a detailed description thereof will be omitted.

The coolant cooled in the coolant supply unit 911 is transferred to the cold water tank 50 and the carbonic acid mixer cylinder 60. The cold water passing carbonic acid mixer case is cooled through the cold water case 50 and the duct surrounding the outer periphery of the carbonic acid mixer case 60. Although not shown, a thermal insulating material may surround the conduit to preserve the cooled temperature.

In another embodiment, the cooling means 90 may be a soft magnetic element module using the Peltier effect. In this case, the heat absorbing side may be directly brought into contact with the cold water tank or the airtight container described later without a refrigerant, or a bracket or the like in contact with the heat absorbing side may be in contact with the cold water tank or the like.

The coolant supply unit 911 designed to cool the combined capacity of the cold water passing carbonic acid mixer tanks consumes a larger amount of power than the coolant supply unit designed only for the cold water tank. If the coolant supply unit having a lower capacity than the coolant supply unit considering the total capacity of the cold water tank 50 and the carbonic acid mixer tank 60 is operated to efficiently operate all the cold water passing carbonic acid mixer tanks, the consumed electric power can be reduced, do.

For this purpose, the cold water pipe 913 and the carbonic acid pipe 914 are branched from the main pipe 912 through which refrigerant cooled in the coolant supply unit 911 is discharged. At the branch point of the main pipe 912, A flow control valve 915 is installed. The refrigerant flow control valve 915 is controlled in operation by the control module.

The flow rate of the refrigerant flowing through the cold water pipe 913 and the carbonate pipe 914 is controlled by the refrigerant flow control valve 915. For example, the refrigerant flow control valve 915 may supply the entire flow rate supplied from the main supply pipe 912 to either the cold water pipe conduit 913 or the carbonate pipe conduit 914. Further, the coolant flow control valve 915 can control the flow rate of the coolant flowing through the cold water pipe 913 and the carbonate pipe 914 at a specific ratio. For example, one of the simple refrigerant flow control valves is a three-way valve.

The control module activates the refrigerant flow control valve 915 so that a larger amount of refrigerant flows through the cold water tank or the carbonic acid mixer tube from which the stored water is discharged. The control module may recognize that the water stored in the cold water tank or the carbonic acid mixer tank escapes by sensing the temperature rise inside the cold water passing carbonic acid mixer case or by pressing the operation button for discharging the cold water or the carbonated water The water level sensor is provided inside the cold-water passing carbonic acid mixer tank to recognize whether the water level is lowered.

The way to operate the refrigerant flow control valve 915 to further supply refrigerant to either the cold water tank or the carbonic acid mixer, measured at a temperature higher than the required setpoint based on temperature, It is most consistent with the efficient operation of energy. In addition, the refrigerant can be operated with high reliability by further supplying refrigerant to either the cold water tank or the carbonic acid mixer.

On the other hand, a method of recognizing that cold water or carbonated water is used from the operation button, or a method of directly sensing the water level and controlling the flow rate of the refrigerant by recognizing that cold water or carbonated water having been stored is discharged, It is advantageous to reduce the rise in the internal temperature of the cold water tank or the like. As a result, the temperature is rapidly converged to the target temperature, and stable operation of the cooling means can be easily achieved.

The control module can cool the cold water passing carbonic acid mixer case at a ratio close to the uniform ratio or even in the normal case where no water is drawn out in both the cold water tank 50 and the carbonic acid mixer tank 60 at normal times.

When the user draws cold water or carbonated water and the water stored in any one of the cold water tank or the carbonic acid mixer tank is drained, the flow rate of the refrigerant is greatly increased by being concentrated in the cold water tank or the carbonic acid mixer tank.

A leak detection sensor (not shown) for detecting carbon dioxide gas is installed in an inner bottom portion of the water supply device 100 for supplying carbonated water. The body is partially open for replacement of the carbonic acid gas cylinder and for the installation and maintenance of internal components. The interior of the assembled body in normal use may not be a completely airtight container. Unlike the intention of the user, the carbonic acid gas may leak from the carbonic acid gas pipe due to the connection of the wrong carbonic acid gas pipe or the like. When the water supply is used for household use, carbon dioxide, which is heavier than air, is likely to emerge from the floor of the room, which can be a very serious hazard in households with floor life.

A leakage detection sensor is installed in the vicinity of the bottom of the body to detect such a problem, and the control module receives an electric signal transmitted from a leakage sensor that detects carbon dioxide of a predetermined concentration or more, And a gas warning unit (not shown) for warning the user.

It is preferable that the gas warning unit warns the user through various means such as a visual sound through the display window 22 and a beep sound.

Further, the power source for the operation of the leak detection sensor and the gas warning unit can be configured to be continuously charged by the main power source and operated continuously even when the main power source is cut off, such as a power failure, by using a rechargeable battery.

In addition, the leakage sensor may be exposed in the space inside the body where the carbonic acid gas container is stored so that the normal operation can be checked through the carbon dioxide leaking slightly during the process of replacing the carbonic acid gas container 410. That is, a leakage sensor is installed near the bottom of the mounting space provided inside the body for storing the carbonic acid gas container. Accordingly, when the user replaces the carbonic acid gas container, the carbonic acid gas is injected to the leakage monitoring sensor a little so that the normal operation of the gas warning unit can be checked.

The leakage detection sensor and the gas warning unit enhance the safety of the water supply apparatus using the carbon dioxide gas tank. Thereby improving the safety reliability of the water supply device.

Figure 3 also relates to the control of the operation of the hot water tank.

A service for providing hot water includes a water reservoir 30, a fluid pump 80, a hot water tank 40, a heater 414, and a dispenser 70. The control object is provided in the dispenser 70 and includes a hot water on-off valve 712 for opening or closing the hot water discharge pipe 412 through which the hot water passes, water in the hot water tank 40 And a heater 414 which is installed inside the water tank 40 and heats the water in the hot water tank 40. [ Although not shown, the hot water tank is provided with a temperature sensor for measuring the temperature of the water being stored. The temperature and level measured by these temperature sensors are converted into electrical signals and transmitted to the control module.

The hot water tank 40 is installed at a lower level than the water storage tank 30 on the basis of the water storage tank 30. [ Further, the dispenser 70 is installed at a height equal to or slightly higher than the reservoir 30. It is necessary to pressurize the water in the reservoir 30 by the fluid pump 80 and inject it into the water reservoir 40 in order to discharge the hot water from the hot water reservoir 40 because the dispenser 70 is positioned high. The hot water in the hot water tank 40 is pushed out and discharged to the outside through the dispenser 70 positioned at a high position.

When the user instructs to discharge the hot water through the operation button, the control module opens the hot water on-off valve 712 and operates the fluid pump 80. When the hot water discharge command is terminated by an operation such as releasing the operation button, the control module closes the hot water opening / closing valve 712 to stop the supply of hot water through the hot water discharge pipe 412 and stops the operation of the fluid pump 80 .

The control module senses that the temperature of the hot water is lowered by the raw water newly injected into the hot water tank through the temperature sensor. Thereafter, the control module operates the heater 414 until the predetermined set temperature is reached, thereby generating water in the hot water tank 40 as hot water.

The operation control method of the hot water tank 40 is based on the assumption that hot water already exists in the hot water tank. On the other hand, if the water supply device is installed for the first time or if the hot water tank is cleaned or replaced, the hot water tank 40 must be completely filled with water.

In the conventional technique in which the airtight container is used as a hot water bottle and water is pumped out in a conventional manner, even if the fluid pump is pumped, the pressure inside the hot water tank is maintained because the hot water opening / closing valve is closed. Therefore, according to the conventional art, when the user separately injects the hot water into the hot water tank while the hot water discharge pipe is opened, it is found that the water is filled inside the hot water tank when the water overflows from the dispenser.

In the present invention, the control module automatically inserts the hot water tank 40.

First, the control module opens the hot water on-off valve 712 to allow the water of the low water cistern to flow smoothly into the hot water cistern 40. The water of the low water storage tank 30 is rapidly introduced into the hot water storage tank 40 at a low position and the water level of the low water storage tank 30 is lowered. When the water flows into the hot water tank 40, the flow rate of the water into the hot water tank is reduced, so that the water level of the water tank 30 rises. At the same time, the hot water discharge pipe 412 connected to the dispenser 70 is also filled with water at the same level as the water level in the lower water cistern 30.

At this time, since the height of the dispenser 70 is equal to or higher than the height of the reservoir 30, the water is not discharged to the outside through the hot water discharge pipe 412 although the hot water opening / closing valve 712 is opened.

Water level sensors are mounted in the water storage tank 30. [ When the water level is detected in the specific water level sensor 360 in the low water cistern, the control module closes the hot water on / off valve 712. As a result, the water can be completely filled in the hot water tank 40 and no further water is injected into the hot water tank 40 as the hot water discharge pipe 412 is closed.

Thereafter, the control module operates the heater 414 to cool the water in the hot water tank 40, and the hot water is supplied to the user according to the operation button as described above.

This automatic appendage function eliminates a cumbersome series of steps for filling the hot water tank with water, thereby providing ease of maintenance such as disinfection, washing, and replacement of the hot water tank.

In this way, the operation of the control module for the automatic filling of the hot water tank can be equally applied to the cold water tank.

Figures 2 and 4 relate to cold water passing according to an embodiment of the present invention.

The illustrated cold water tank 50 is provided in the water supply device, and generates cold water in the airtight container by the cooling means and maintains the temperature of the cold water.

The cold water tank 50 includes a temperature sensor (not shown), a supply pipe 413 into which raw water is injected, and a pair of cold water discharge pipes 513 through which cold water is discharged.

The airtight container 511 is preferably made of a metal material such as stainless steel which is excellent in thermal conductivity and does not rust. The airtight container 511 is similar to the cup in a shape in which the cross-sectional area decreases as it goes downward.

The cold water pipe 913 through which the coolant flows is wound around the outer peripheral surface of a separate seating case 518. The seating case 518 has a shape in close contact with the lower end of the airtight container 511 and the side surface. As shown in the figure, the airtight container 511 can be easily separated from the seating case 518 by lifting the airtight container 511. When the airtight container 511 is inserted into the seating case 518, the cold air in the cold water pipe 913 is transmitted to the water in the airtight container through the seating case 518 and the airtight container 511. The seating case 518 may be made of a metal material having excellent thermal conductivity such as aluminum.

The combination of the airtight container 511 and the seating case 518 significantly improves the convenience of maintenance for cleaning or replacing the cold water container 50. [ If the cold water pipe 913 is directly wound on the outer peripheral surface of the airtight container 511, it is practically impossible to separate the cold water tank 50 from the water supply device. Therefore, it is not possible to clean various foreign substances or the like which are caught in the airtight container due to long-term use or to replace with a new cold water bottle.

On the other hand, according to the present invention, since the seating case can be separated from the airtight container, the cold water pipe can be managed without damaging the cooling pipe conduit.

On the other hand, the cold water pipe 913 may be replaced with a cooling jacket through which the refrigerant passes.

On the other hand, the supply pipe 514 is a channel through which water supplied from the low-water bottle is injected into the airtight container. One of the cold water discharge pipes 513 is connected to a cold water opening / closing valve 713 provided in the dispenser 70 to supply cold water to the customer, and the other is a pressurizing pump 90. If the water supply device is not provided with a carbonic acid mixer, that is, in the case of a water supply device not provided with a carbonated water supply function, only a cold water discharge pipe connected to the dispenser is provided.

When the user presses the operation button for discharging the cold water, the control module opens the cold water on-off valve 713 and operates the fluid pump (see 80 in FIG. 1) .

The cold water discharge pipes 513 are elongated such that the lower end thereof is close to the bottom of the airtight container 511. As the inlet 513a of the cold water discharge pipe 513 is formed near the bottom of the airtight container 511, the pressure of the inside of the cold water container 50 is increased by the injected water, And then starts to be discharged from the vicinity of the discharge port 513a.

When the user releases the operation button, the control module closes the cold water on-off valve 713 to stop the discharge of the cold water, and stops the operation of the fluid pump 80. During this process, the other cold water discharge pipe 513 is blocked by the pressurizing pump 90, so that the cold water does not move into the carbonic acid mixer cylinder 60 during the cold water discharge process.

The edge of the inlet 513a of the cold water discharge pipe 513 is sloped to form a slope. This inclination improves the flowability of the cold water around the inlet port 513a when the cold water flows out through the inlet port 513a by making the inlet port 513a obliquely cut.

If the inlet is cut in a straight line parallel to the bottom of the cold water bottle and formed into a circular cross section, a horizontal symmetrical pressure gradient is formed at the bottom of the airtight container as cold water is sucked through the inlet, And it is highly likely that the cold water flow around the inlet port is easily transferred to the vortex.

On the other hand, the asymmetrically formed inlet port 513a is an exposed portion of the side portion, and has the effect of making it difficult to form the vortex described above by acting to cause more cold water to flow in a biased manner.

One of the structures facilitating the discharge of the cold water is a curved shape of the lower end edge 512 of the airtight container 511. The lower end edge 512 of the airtight container formed in a curved shape has a shape similar to the flow direction in which the cold water moves toward the inlet 513a of the cold water discharge pipe 513 and the cold water moving toward the inlet 513a is bent at the lower end corner (512). This reduces the possibility of vapors at the lower end of the airtight container.

The asymmetrical shape of the cold water discharge pipe inlet 513a and the curved corner 512 shape of the lower end of the airtight container increase the efficiency of the cold water discharge as well as the technical characteristics of the supply pipe 514 described later.

Meanwhile, the supply pipe 514 is a pipe member that forms the flow path through which the raw water supplied from the low water cistern flows into the inside of the cold water tank 50. In the embodiment of the present invention, the supply pipe 514 disperses raw water into a plurality of branches So that it flows into the inside of the cold water tank (50).

It is necessary that the discharge port 517 of the supply pipe 514 is positioned as far as possible from the inlet of the cold water discharge pipe 513 to prevent the inflow of raw water immediately into the cold water discharge pipe 513. [ If not, the cold water is injected directly into the cold water tank even if the cold water is adequately filled in the cold water tank, and the unfiltered raw water is sprayed while being mixed with the cold water to provide the user with lukewarm water. Therefore, although the cold water is discharged through the cold water discharge pipe 513 by the pressure gradient due to the inflow of the raw water, it is necessary to prevent the premature mixing of fresh warm water and cold water stored.

The inlet port 513a of the cold water discharge pipe 513 is located at the bottom of the cold water container 50 so that the discharge port 517 for receiving the raw water is installed at the upper end of the inside of the cold water pipe. Moreover, the supply pipe 514 is located at the upper end of the inner surface of the cover member, that is, the ceiling portion of the cold water container 50, even when various pipes are considered to be coupled to the cover member constituting the upper end portion of the airtight container 511.

The cold water level in the airtight container varies with the operation of the cold water tank 50, but the raw water introduced from the supply pipe 514 falls on the cold water stored in the cold water tank and is mixed. The enemy water falling from the cold water is poured on the cold water, and it mixes quickly, which is the factor that raises the temperature of the cold water. Such a problem is a serious problem when the water supply device is designed to be small in size, such as a tabletop, so that the volume of the cold water container is designed to be small.

In this embodiment, the water introduced into the supply pipe 514 is dispersed by at least two water streams, so that the potential energy of the water for each dispersing branch falling at the discharge port 517 is reduced. In other words, since the flow rate of the raw water flowing through one water stream is reduced by having a plurality of branches dispersed, it is mixed mainly with the stored cold water and the surface portion so as to have low potential energy. To be preserved.

The asymmetrical structure of the cold water discharge pipe inlet 513a described above and the effect of reducing the eddy current formation caused by the curved lower edge corner 512 of the cold water container 50 can be achieved by the effect of reducing the amount of cold water stored in the airtight container By preventing the up-and-down mixing as much as possible, the mixture of raw water and cold water is made to be slower.

This allows the user to receive cold water at a low temperature as low as possible even if the small-capacity cold water tank is operated.

A main pipe 515 extending to the inside of the cold water tank 50 and a plurality of branch pipes 516 communicating with the main pipe 515 in the airtight container 511 are coupled to the supply pipe 514. The main pipe 515 and the branch pipe 516 can be manufactured by assembling a plurality of piping materials or integrating them by injection molding or the like.

In the illustrated embodiment, the branch pipes 516 are arranged on a substantially horizontal plane while being connected at the lower end of the main pipe 515. Accordingly, the flow direction of the raw water is changed to the horizontal direction while moving the branch pipe 516, so that the raw water exiting the branch pipe 516 does not mix with the stored cold water more rapidly due to the discharge speed. Further, the branch pipes 516 are formed in different directions in the discharge direction on the horizontal plane. As a result, the raw water dispersed and discharged from each branch pipe 516 is not brought into contact with each other during the discharge process.

At least two branch pipes 516 are provided, and the number of the branch pipes 516 may be varied if necessary. The two branch pipes 516 provided in the supply pipe shown in Fig. 4 are arranged to face each other on the horizontal plane. Further, the diameter of the branch pipe 516 may be equal to or smaller than the diameter of the main pipe 515. Particularly when the diameter of the branch pipe 516 is designed to be smaller than the diameter of the main pipe 515, even if the cold water container 50 is installed at a slight inclination, all the raw water does not flow to any one branch pipe 516, There is an effect that the dispersion of the raw water can be forced.

Also, the discharge port 517 of the branch pipe 516 can be positioned adjacent to the internal structure of the cold water tank 50. Here, the structure is various parts that are at least partially immersed in cold water, such as the inner wall surface 511a of the airtight container 511, the cold water discharge pipe 513, and the like. The lengths of the branch pipes 516 may be different from each other so that the discharge port of the branch pipe 516 is adjacent to the structure. Or the diameter of the discharge port 517 of the branch pipe 516 is made small so that even if the length from the discharge port to the structure is a little longer, the raw water can be strongly discharged from the discharge port to reach the structure.

In this case, since the raw water flows down through the structure, it can be mixed with the cold water more slowly than when it falls directly into the cold water at the discharge port 517. In addition, the raw water flowing down the inner wall of the inclined cold water tank obtained by the shape characteristic of the airtight container formed to have a narrow cross-sectional area toward the bottom can further lower the descending speed. Therefore, the effect of preventing direct mixing of the supplied raw water with the stored cold water is further increased. The supply pipe having the dispersed branch in this way can be applied to a carbonic acid mixer can.

In Fig. 5, a carbonic acid-mixer-passed carbonic acid supplying member is shown.

In FIG. 5, the carbonic acid mixer cylinder 60 receives cold water from the cold water cylinder 50 as raw water. Alternatively, the raw water provided in the carbonic acid mixer can be supplied directly from the low water cistern. In order to generate carbonated water more quickly, it is preferable to supply cold water of a low-temperature cold water tank to the carbonic acid mixer tank 60 to suppress the temperature rise in the carbonic acid mixer tank 60 as much as possible.

Further, the carbonic acid mixer case 60 is supplied with carbonic acid gas from the carbonic acid supply member 400. High-pressure carbon dioxide gas and cold water coexist in the inside of the carbonic acid mixer cylinder 60, and carbon dioxide is dissolved in the cold water over a certain period of time to produce carbonated water.

The water in the carbonic acid mixer cylinder (60) is cooled by the carbonic acid pipe conduit (914). The airtight container 611 constituting the outer shape of the carbonic acid mixer cylinder 60 is detachably coupled to the seating case 619 so that the airtight vessel 611 and the seating case 619 are in surface contact with each other. Further, a carbonation tube conduit 914 is wound around the outer peripheral surface of the seating case 619 a plurality of times. Thereby, the carbonic acid mixer can be easily separated from the seating case.

By cooling the carbonic acid mixer cylinder 60, the internal temperature is lowered to an appropriate level. That is, since water and carbon dioxide gas coexist while maintaining the state of low temperature and high pressure, carbon dioxide gas is largely dissolved in water, and carbonated water is produced at a high carbon dioxide gas pressure.

5, the pipes connected to the carbonic acid mixer 60 are a supply pipe 615 through which raw water flows, a gas pipe 620 through which carbon dioxide is injected, and a carbonated water discharge pipe 614 through which carbonated water is discharged.

Here, the supply pipe 615 has a plurality of branch pipes 616 for dispersing the water to be injected. The discharge port 617 of the branch piping 616 is installed adjacent to various structures (sensors, mixing units, and the like) provided inside the carbonic acid mixer container so that the water flowing out of the discharge port 617 flows down the structure . The specific configuration and operation of the supply pipe 615 having a plurality of branch pipes 616 is similar to the supply pipe of the cold water bottle 50 described above.

In particular, branch pipes 616 provided in the carbonic acid mixer tank 60 serve to maintain the carbonic acid gas pressure of the carbonated water provided to the consumer at a certain level. The raw water flowing into the carbonic acid mixer tank 60 is already generated and the carbonic acid gas pressure of the stored carbonic acid water mixed with the stored carbonic acid water is lowered. If the raw water is quickly mixed with the carbonated water, the carbonic acid gas pressure of the carbonated water supplied through the dispenser is drastically lowered, which is not preferable.

The branch piping 616 allows the newly supplied raw water to be mixed with the existing carbonated water as slowly as possible so that the user can be provided with the carbonated water having a high carbon dioxide pressure and little influence of the newly added raw water.

Although not shown, the carbonic acid mixer includes a water level sensor for sensing the level of water stored therein and a temperature sensor for sensing the temperature. Further, a pressure sensor for measuring the pressure inside the carbonic acid mixer can be further provided.

The carbonic acid mixer tank 60 is equipped with a drain pipe 612 for discharging water therein and a drain valve 613 for opening and closing the drain pipe 612. When the carbonic acid gas is exhausted from the carbonic acid gas cylinder, the pressure of the carbonic acid mixer cylinder is lowered, and carbonated water may not be generated properly. For this reason, when discharging all the carbonic acid water in the carbonic acid mixer case to the outside to empty the carbonic acid mixer case 60, the drain valve 613 may be opened to release the carbonated water through the drain pipe 612.

The drain valve 613 is controlled to operate by the control module. The user uses the operation button 21 of the operation unit to issue an operation command to open the drain valve 613 to the control module. A specific button for emptying the carbonic acid mixer can be installed or a specific operation menu can be installed. However, it is possible to configure a pair of operation buttons 21 having different functions at the same time in a more convenient way.

For example, the control module senses that the operation button for hot water discharge and the operation button for cold water discharge are simultaneously operated, so that the drain valve can be opened. The type of the operation button that is pressed at the same time can be variously changed according to the setting.

6 shows a carbonic acid mixer according to another embodiment of the present invention.

The carbonic acid mixer tank according to the embodiment shown in FIG. 6 includes the technical characteristics of the carbonic acid mixer tank shown in FIG. 5 as long as it does not conflict with the contents described below.

In the illustrated embodiment, the feed pipe 615 extending into the interior of the carbonic acid mixer bar has a branch pipe 616. The branch pipes 616 are formed to be inclined downwardly away from the center of the supply pipe. The speed of the raw water passing through the sloping branch piping 616 is increased and it is quickly discharged from the discharge port 617 to reach a structure that is somewhat distant. The raw water then flows along the structure and is mixed with carbonated water near the surface of the carbonated water.

In the embodiment shown in Fig. 6, one cross pipe 618 is used as the supply pipe. One of the branch branches of the cross pipe (618) is in communication with the interior of the airtight container. One of the remaining branch branches is used as piping to which carbon dioxide gas is injected, and another branch branch is used as piping to which raw water is introduced. The remaining branches are connected to a safety valve (SAFETY VALVE, S.V.). The raw water and the carbon dioxide gas injected into the carbonic acid mixer cylinder 60 can be mixed in the cross pipe 618 before entering the inside of the carbonic acid mixer cylinder 60.

The carbonic acid gas is mixed with the raw water and then injected into the carbonic acid mixer tank 60. The carbonic acid water generation rate can be improved as compared with the embodiment of FIG. 5 in which raw water and carbonic acid gas are injected through separate pipes.

Specifically, how fast the carbonated water having a certain level of carbon dioxide gas pressure can be generated is mainly related to the contact area between the raw water and the carbon dioxide gas. Conventional techniques for producing carbonated water by bringing water and carbon dioxide gas into contact with each other in a high-pressure gas-tight container are such that water and carbon dioxide gas are injected into different vessels through different pipes, so that the production rate of carbonated water is limited only to the surface area of water Is determined accordingly.

In the present invention, since the carbonic acid gas and the raw water are mixed in advance and then injected into the carbonic acid mixer cylinder 60, the contact area between the carbonic acid gas and the raw water can be increased at the initial stage of injection. The carbonic acid gas is quickly dissolved in the raw water so that carbonated water having an appropriate carbonic acid gas pressure can be produced within a short time.

The branched branch of the installed cross pipe 618 communicating with the inside of the airtight vessel 611 is provided with a crushing member 622 for finely dividing the carbonic acid gas droplets mixed with raw water and injected into the pressure vessel in the crucible pipe 618, May be provided.

For example, the crushing member 622 may be a mesh that splits the large gas bubbles into small droplets as they pass through. The mesh can be made of corrosion resistant metal such as stainless steel. As another example, the crushing member may be a plurality of collision protrusions protruding from a channel through which raw water mixed with carbon dioxide gas passes.

The crushing member 622 is provided on the flow passage through which the raw carbonic acid mixed raw water passes, so that the large carbonic acid gas droplets are finely divided. Accordingly, the contact area between the raw water and the carbonic acid gas injected into the gas tight chamber 611 is greatly increased, and the carbonic acid gas dissolves more quickly in the raw water.

The service for providing carbonated water includes a carbonic acid mixer tank 60, a pressurizing pump 90 for introducing cold water into the carbonic acid mixer tank 60, a carbonic acid supply member 400 for supplying carbonic acid gas, a dispenser (70) and a cooling means (90) are involved. The control target includes a pressurizing pump 90 for transferring cold water to a high pressure, a carbonated water opening / closing valve 713 connected to the dispenser 70 for opening or closing a carbonated water discharge pipe through which carbonated water flows, a coolant supply unit 911, Is a control valve 915.

The generated carbonated water can be discharged only by opening the carbonic acid water opening / closing valve 713. The inside of the carbonic acid mixer cylinder 60 normally operated is operated at a relatively high pressure relative to the outside air (atmospheric pressure). Therefore, when the user delivers the carbonated water to the control module through the operation button, when the control module opens the carbonic acid water opening / closing valve 713, the carbonated water is pushed out by the pressure in the carbonic acid mixer.

Thereafter, the control module senses that the water level in the carbonic acid mixer cylinder 60 is lowered through the water level sensor 621 in the carbonic acid mixer cylinder, and operates the pressurizing pump 90 connected to the cold water cylinder or the low water cylinder to receive fresh water . The carbonic acid gas supplied from the carbonic acid supply member 400 is maintained at a constant high pressure in the carbonic acid mixer cylinder 60 due to the lowering of the carbonic acid gas pressure in the carbonic acid mixer cylinder 60.

Further, when there is an instruction to discharge the generated carbonated water, the control module can operate the pressurizing pump 90 while opening the carbonated water opening / closing valve 713. In this case, the carbonated water is pushed out by the water pushed into the inside of the carbonic acid mixer as well as the pressure difference between the inside of the carbonic acid mixer and atmospheric pressure.

The carbonated water discharge pipe (614) is equipped with a mixing unit (500). The mixing unit 500 improves the quality of the carbonated water discharged from the carbonic acid mixer cylinder 60. Specifically, the mixing unit 500 increases the carbonic acid gas pressure of the carbonic acid water supplied through the carbonic acid water discharge pipe 614, thereby enhancing the shooting taste of the carbonated water according to the high carbonic acid gas pressure. Also, the mixing unit 500 enables smooth operation of the water supply device. The mixing unit 500 can operate the carbonic acid mixer cylinder 60 under a high pressure condition to widen the selection of the operating pressure of the carbonic acid mixer cylinder 60. [ That is, the operation pressure of the carbonic acid mixer can be set to a high pressure and operated according to the user's intention.

5 and 6, the mixing unit 500 is connected to a carbonated water discharge pipe 614 extending into the inside of the carbonic acid mixer cylinder 60, so that the mixing unit 500 is connected to the carbonic acid water mixer 60 It is suggested to be mounted inside. The mixing unit 500 is mounted in the inside of the carbonic acid mixer cylinder 60 so that the carbonic acid water passing through the mixing unit and the mixing unit is subjected to the cooling effect of the carbonic acid mixer cylinder. That is, the mixing unit itself is kept cool.

Since the mixing unit 500 is connected to the carbonated water discharge pipe 614 in the carbonic acid mixer cylinder 60, the flow of the carbonated water passing through the mixing unit 500 has the same gravity as the direction in which the carbonated water is discharged along the carbonated water discharge pipe It becomes the direction going backward. The inlet and outlet of the mixing unit are also in a straight line. The rectilinear arrangement of the inlet and the outlet reduces the flow resistance caused by the flow direction of the carbonated water.

In another embodiment, the mixing unit may be provided outside the carbonic acid mixer barrel, not on the inside of the carbonic acid mixer barrel, or on the dispenser, under the condition that the mixing unit is installed on a channel through which carbonated water flows. For example, in the middle of a carbonated water discharge pipe connected to the dispenser. Alternatively, the mixing unit may be mounted as an accessory within the dispenser. Thus, the mixing unit is installed in a channel through which carbonated water passes, and its position is not limited to the inside of the carbonic acid mixer can. Even in this case, since the direction of the carbonated water injected into the mixing unit and the flow direction of the carbonated water discharged after passing through the mixing unit are not changed, it is easy to install the pipe in the water supply device.

7 to 9 show in detail a mixing unit according to an embodiment.

The mixing unit 500 has therein a diffusion space S1 communicating with the channel through which the carbonated water generated in the airtight vessel 611 is discharged, that is, the carbonated water discharge pipe 614.

Here, the diffusion space S1 gradually increases the flow area of the carbonated water. The flow rate of the carbonated water passing through the diffusion section is lowered, and the pressure of the carbonated water passing through the corresponding section is increased. As is known, the higher the pressure of the carbonated water, the more the carbonic acid gas pressure increases because the solubility of the carbonic acid gas to the water increases.

That is, the carbonic acid gas pressure of the carbonated water increases as compared with the case where the mixing unit does not pass through the mixing unit 500, thereby providing the user with carbonated water having a high carbon dioxide gas pressure.

The mixing unit 500 also functions as a pressure damper between the carbonic acid mixer cylinder 60 operated at a high pressure and the cock of the dispenser 70 atmospheric pressure. If the internal pressure of the carbonic acid mixer tank is increased without providing a mixing unit, the high pressure of the carbonic acid mixer tank is directly transferred to the dispenser, and the carbonic acid water is discharged at a high pressure from the dispenser. High-pressure sparkling water is spilled from the cup that is brought to the tap of the dispenser 70, which causes a great inconvenience to the user.

The conventional carbonic acid water supply devices have not been able to increase the internal pressure of the carbonic acid mixer because of such a problem, and thus the carbonic acid gas pressure can not be increased.

On the other hand, the mixing unit 500 according to the present invention functions as a regulator, so that carbonated water flows completely. Therefore, the pressure of the carbonic acid mixer can be operated much larger than that of the conventional art, and the operating pressure of the carbonic acid mixer can be set variously when designing the water supply device.

A converging space S2 is formed after the diffusion space S1 formed inside the mixing unit 500. [ The converging space S2 serves to collect the carbonated water passing through the diffusion space S1 and to flow the carbonated water to the carbonated water discharge pipe 614 again.

The water supply device can be made as a small household appliance, for use as a household or a desk. It is advantageous in that the mixing unit provided in such a water supply device is also made as small as possible in order to secure a design margin. With the mixing unit functioning properly, the minimum size of the diffusion space can be defined to be as compact as possible. This will be described in detail later.

Referring to FIG. 7, the mixing unit 500 includes a case 3 and a mounting portion 4. The mounting portion 4 is divided into two parts and is composed of a front body 41 and a rear body 42. The mounting portion 4, which is divided into the front body 41 and the rear body 42, is advantageous in that it can be easily manufactured using a synthetic resin. In another embodiment, the mounting portion 4 can be made of one integral part.

The case 3 is formed with a space portion 31 for accommodating a part of the mounting portion 4. The space portion 31 communicates with the inlet port 32 formed in the case 3. The case 3 is a member for forming the outer shape of the mixing unit. A screw or a flange for coupling with the airtight container of the carbonic acid mixer case of the water supply device is formed outside the case 3.

An inlet (32) through which carbonated water enters the mixing unit is formed at the front end of the case (3). The space portion 31 formed at the rear end of the case 3 is opened toward the rear. A screw thread engaging with the mounting portion 4 is formed around the inner circumferential surface of the space portion 31. The space portion 31 has a conical shape in which the cross-sectional area is gradually increased from the front leading from the inlet 32 to the rear end where the thread is formed.

The mounting portion 4 is engaged with the case 3 so that one end thereof is inserted into the space portion of the case 3. A part of the mounting portion 4 inserted into the case 3 forms a diffusion space S1 between the inner surfaces of the case 3 in the space portion 31 in a conical shape. The conical portion of the front body 41 is formed to be smaller than the space 31 formed in the case 3 so that a gap is formed between the inner surface of the case 3 and the outer peripheral surface of the front body 41, Space is formed.

The front body 41 is made to have a constant thickness and its interior is empty. The open rear end of the front body 41 is engaged with the front end of the rear body 42.

The rear body 42 is screwed to the case 3 while fixing the front body 41 to fix the position of the front body 41 inside the case 3. [ A hollow hole is formed through the rear body 42 to provide a converging space S2 in which carbonated water passing through the diffusion space S1 is collected and discharged. The converging space S2 communicates with the outlet 43 at the rear of the rear body.

On the other hand, the outer peripheral surface of the rear body 42 is formed with a flow groove 44 which is recessed along the circumference to communicate with the rear end of the diffusion space S1. The recessed depth of the flow grooves 44 is formed deeper than the width between the front body 41 and the case 3 or the thickness of the diffusion space S1 so that the volume of the space formed by the flow grooves 44 is Is formed larger than the rear end of the diffusion space S1.

On the concave depression surface of the flow groove 44, a through hole 45 is formed which leads to an outlet 43. A plurality of through holes are formed radially at the center of the rear body (42). In the illustrated embodiment, the pair of through holes 45 are formed to face each other.

Figure 8 shows a cross section of the assembled mixing unit. A cavity 41a extending in a direction opposite to the flow path can be formed in the mounting portion 4 while communicating with a flow path for flowing carbonated water. In the illustrated embodiment, the cavity 41a is an empty space formed in the inside of the front body 41. Considering the vertical direction in the drawing, the carbonated water that has passed through the diffusion space S1 escapes to the upper portion of the mounting portion 4 where the outlet 43 is formed. The cavity 41a is formed as an empty space in the direction opposite to the main flow direction of the carbonated water.

The main flow of the carbonated water immediately rising while passing through the through hole 45 and gathering toward the center of the mounting portion 4 is influenced by the cavity 41a formed in the direction opposite to the main flow direction of the carbonated water.

9 that schematically illustrates the carbonated water flow passing through the mixing unit 500. The carbonated water that has passed through the diffusion space S1 and enters the interior of the converging space S2 flows into the main flow . As the cavity 41a is formed in the mounting portion 4, a turbulent flow of the carbonated water flows in the cavity 41a. This turbulent flow mixes the carbonated water evenly, so that the carbonic acid gas pressure of the discharged carbonated water is made even.

Also, in the initial stage of the discharge of the carbonated water, the cavity 41a functions as a bumper even when the initial flow rate of the carbonic acid water supplied to the mixing unit is not constant by the gas or the liquid staying in the carbonated water discharge line such as the carbonated water discharge pipe, To be discharged continuously and uniformly.

These cavities 41a are formed in the direction opposite to the main flow of the carbonated water and generate turbulence. In the converging space S2, the main flow passes through the through hole 45, moves horizontally and then collects upward to escape from the mixing unit 500. However, the cavity 41a is located at a position lower than both the through holes 45, Namely, it is located outside the main flow direction of the carbonated water and easily generates a turbulent flow which opposes the main flow of the fast flowing carbonated water.

In addition, the installation direction of the mixing unit 500 for gravity affects the function of the cavity 41a. As shown in FIGS. 5 to 9, when the discharge of the carbonated water stops, the carbonated water that has not passed through the mixing unit 500 is accumulated in the cavity 41a. The carbonated water remaining in the cavity 41a is mixed with the carbonated water newly discharged through the mixing unit 500 to help generate turbulence.

The mounting portion 4 is configured to be movable relative to the case 3. This makes it possible to vary the cross-sectional area of the diffusion space S1.

Since the mounting portion 4 is screwed to the case 3, the degree of insertion of the mounting portion 4 is changed according to the rotation of the mounting portion 4. [ That is, the cross-sectional area of the diffusion space S1 can be adjusted by moving the front body 41 to the inside of the case or vice versa as the rear body 42 rotates.

The flow rate of the carbonated water flowing in the diffusion space S1 can be adjusted by changing the cross-sectional area of the diffusion space S1. In particular, it is possible to adjust the area of the inlet of the diffusion space to the flow rate. This makes it possible to control the flow rate of the carbonated water discharged from the dispenser. Also, the operating pressure of the carbonic acid mixer container is determined by the pressure of the carbonic acid gas supplied to the carbonic acid mixer container. In accordance with the operating pressure of the carbonic acid mixer container, the cross-sectional area of the expansion space is appropriately adjusted so as not to discharge the carbonated water from the dispenser to an excessively high pressure Can be adjusted. Also, the cross-sectional area of the inlet and the cross-sectional area of the inlet of the diffusion space can be matched in order to eliminate the stagnation of carbonated water entering the diffusion space at the inlet of the mixing unit.

10 and 11 relate to an adjuster for rotating the mounting portion.

The carbonic acid mixer cylinder (60) is fixed to the seat (619) fixed to the body (1) without slip. So that the case 3 of the mixing unit 500, which is coupled to the carbonic acid mixer cylinder, is also fixed. The mounting portion 4 is fastened to the upper end of the case 3 so that the mounting portion 4 can be rotated without detaching the mixing unit 500 from the carbonic acid mixer case 60. [

The peripheral portion of the outlet of the mixing unit can be rotated by using a tool such as a pliers to rotate the mounting portion with respect to the case. However, this approach is very troublesome due to the opening of the body of the water supply device and interference of other components.

And an adjusting portion 5 for easily rotating the mounting portion 4 is provided. The adjusting portion 5 shown in the drawing is a lever 51 whose one end is connected to the hexagonal portion 46 at the rear end of the mounting portion. A slit 11 through which the lever 51 passes is formed on one side of the body 1 so that a part of the lever 51 protrudes to the outside. The user can hold the lever 51 exposed to the outside of the body and rotate the mounting portion 4 in the forward or reverse direction by rotating the lever 51 on the horizontal plane.

In another embodiment, the regulating portion may be constructed using a rotary motor, a speed reducer, or the like. The rotation motor controls the operation of the control module according to the user's pushing of the operation button. The rotational force supplied from the rotary motor is transmitted to the mounting portion through a power transmitting means such as a speed reducer to rotate the mounting portion in the forward direction or the reverse direction. Such a regulating portion is relatively complicated in construction compared to the lever described above, but has an advantage in that the appearance of the water supplying device is not damaged.

The effect of increasing the carbon dioxide pressure by the mixing unit 500 depends on the shape of the diffusion space S1.

In the mixing unit 500 according to the embodiment shown in FIGS. 7 to 8, an experiment was conducted on a size for increasing the carbonic acid gas pressure of the finally discharged carbonated water.

For the experiment, various experimental examples having different sizes of the space portion 31 and the front body 41 of the case 3 were produced. The shapes of the experimental examples are the shapes shown in FIGS. 7 to 8, and the flaring angles A of the diffusion spaces S1 are set to be different for each experimental example. The firing angle (A) of the experimental examples was set so as to increase by 2 degrees starting from 24 degrees. At this time, in all the experimental examples, the length L of the diffusion space S1 was made equal to 25 millimeters.

In each experimental example, the carbonated water supplied from the same carbonic acid mixer tank (60) was allowed to pass through. In each experimental example, the carbonated water discharged was put into the carbonic acid gas pressure gauge within a few seconds to measure the gas pressure. Here, the carbonic acid mixer was installed in the water supply device described above, the temperature was set at 4 degrees Celsius, and the pressure of the carbonic acid gas was set to 4 kgf / cm < ² > The temperature of the discharged carbonated water is 5 ° C to 7 ° C.

According to the experimental results, it was confirmed that the carbon dioxide pressure of the final discharged carbonated water stays at 1 kg / cm ² in the experimental examples in which the spreading angle A of the diffusion space is less than 28 °. The flaring angle (A) is an acid gas pressure measured before and after 28 ° of the spread area sheds significantly difference (flaring acid gas pressure is observed when the angle is 26 ° is measured in 1.9 kg / cm ^2, when the flaring angle is 28 ° The carbonic acid gas pressure was measured at 3.1 kg / cm ² ), and in the experimental examples in which the firing angle exceeded 28 °, the carbonic acid gas pressure gradually increased with increasing firing angle, and then decreased.

Considering that the carbonic acid gas pressure of the carbonated water finally discharged when the mixing unit 500 is not provided is 1.5 kg / cm ² , when the spreading angle A of the diffusion space S 1 is at least 28 ° or more, It can be said that the increase effect is exerted. Therefore, the spreading angle A of the diffusion space S1 is preferably 28 degrees or more.

On the other hand, when the spreading angle A of the diffusion space S1 exceeds 45 degrees, the carbonated water flows over the diffusion space while being excessively widespread, so that there is a problem that the flow of the carbonated water is weakly formed in the converging space where the carbonated water is collected.

According to the above experimental results, the carbonic acid gas pressure of the finally discharged carbonated water becomes maximum in the experiment example in which the angle of opening is 34 °, and then starts to decrease gradually. Considering the increase of the carbonic acid gas pressure and the flowability of the carbonated water, the flaring angle A of the diffusion space S1 is set to 28 to 45 degrees.

Alternatively, in order to increase the carbonic acid gas pressure of the discharged carbonic acid water, the spreading angle A of the diffusion space S1 can be set to 28 to 36 degrees.

Furthermore, the mixing unit can be made as small as possible according to the size of the water supply device, which is made small, such as a tabletop. The mixing unit, which is manufactured in a small size, can be mounted inside a carbonic acid mixer container, or can be mounted on a dispenser of a small size, so that the mixing unit can be used for general purposes. In the case where the mixing unit 500 is manufactured as small as possible, the spreading angle A of the diffusion space S1 can be set to 28 to 34 degrees. This makes it possible to increase the carbon dioxide pressure while reducing the circumference of the mixing unit 500.

In other experiments, it was found that the length L of the diffusion space S1 should be at least 21 millimeters or more to exert an effect of increasing the carbon dioxide gas pressure. In the performance test for a plurality of experimental examples in which the length L of the diffusion space S1 is different while the spreading angle of the diffusion space is 28 degrees, when the length L of the diffusion space S1 is 20 millimeters or less, The carbonic acid gas pressure of the carbonated water stayed at 1 kg / cm < ² >

On the other hand, the diffusion space (S1) the length (L) is 21 mm or more experimental example carbonic acid gas pressure of 3 kg / cm ² hubandae as starting to 3 kg / cm ² single acid gas pressure is measured, and the increase in the length of the diffusion space Was measured.

As a result, it can be understood that the length L of the diffusion space S1 for achieving the effect of increasing the carbon dioxide pressure according to the intended length is 21 millimeters or more. If the length of the diffusion space is less than 21 millimeters, it is presumed that the carbonated water quickly passes through the diffusion space and does not have the effect of increasing the solubility of carbon dioxide gas due to the increased pressure.

On the other hand, when the mixing unit 500 is manufactured in a small size, the length L of the diffusion space S1 may be 21 to 33 millimeters. By designing the length of the diffusion space to 33 or less, it is easy to mount the mixing unit inside the carbonic acid mixer can.

The mixing unit is not necessarily made compact. The size of the water supply device for supplying carbonated water can be made large, and in this case, the size of the mixing unit increases as the flow rate increases.

Figs. 12 to 13 relate to a check valve connected to piping between hot water passing low water pipes.

The backflow prevention valve 800 prevents the backflow of the sphere 830, which is raised by the flow of water flowing backward, by blocking the passage of the water.

The illustrated backflow prevention valve 800 forms a passage 811 through which water passes and includes an upper housing 810 and a lower housing 810 which communicate with the passage 811 and form a hollow portion 821 having a large diameter, 820), and a sphere 830 that rises inside the hollow portion 821 in accordance with the flow of backward flow and contacts the upper end portion of the hollow portion 821. A sealing 840 is interposed in the coupling portion of the upper housing 810 and the lower housing 820.

The backflow prevention valve 800 prevents the hot water from being pushed up by the steam generated in the hot water tank 40 and flowing back to the low water tank 30.

The water supply device may adopt a configuration in which a cold water tank is immediately installed immediately below the lower water tank according to the embodiment. In this case, a barrier is provided in the middle of one cylindrical member, and the upper part is used as a low water cistern, and the lower part is used as a cold water bottle. The structure in which the low-water tub and the cold water tub are integrated as such is a well-known structure adopted to improve the space utilization in the water supply device, which is made compact like a table water purifier, and thus a detailed description thereof will be omitted. The hot water flowing backward in the hot water tank is undesirable because it raises the temperature of the cold water in the cold water tank. Therefore, the backflow prevention valve is mainly used. It is not preferable that the hot water of the hot water tank flows into the low water tank even in the water supplying apparatus in which water is supplied from the low water tank to the hot water tank as in the above water supply apparatus.

The diameter of the sphere 830 is formed to be smaller than the diameter of the hollow portion 821 but larger than the diameter of the passage 811 that is continuous with the hollow portion 821. The spherical body 830 is movable upward and downward in the hollow portion 821 and rises when the hot water flows backward to contact the passage 811 formed at the upper end of the hollow portion 821 so that the hot water can not escape greatly into the passage. A plurality of recesses 831 are evenly distributed on the outer circumferential surface of the sphere 830.

The sphere 830 is separated from the ceiling surface 822 of the hollow portion 821 and the water is introduced into the hot water tank through the passage formed on the side surface of the lower housing 820. [ At this time, the center of the passage formed on the side surface of the lower housing 820 is formed lower than the center of the spherical body when the ball 830 is positioned at the bottom of the hollow portion 821, so that the ball does not block the passage. In other words, the sphere having a diameter larger than the diameter of the passage formed at the lower side of the lower housing contacts the bottom of the hollow portion, so that the passage can not be blocked, so that water can smoothly flow from the low water bottle to the hot water bottle.

On the other hand, when the hot water flows from the hot water tank to the low water tank, the sphere 830 rises due to the flow of water, and comes into contact with the circumference 812 of the passage 811 formed in the ceiling of the hollow portion 821 . The circumference 812 of the passage 811 starting from the ceiling surface of the hollow portion 821 is chamfered in conformity with the outer peripheral surface of the sphere 830. [

At this time, the sphere 830 does not completely close the perimeter 812 of the passage due to the plurality of depression grooves 831 formed on the surface of the sphere 830. So that a small amount of hot water can flow out through the gap 832 formed between the perimeter 812 of the chamfered passage and the recessed groove 831. The gas such as steam in the hot water tank can be passed through the check valve 800 and escaped to the water reservoir 30 through the clearance 832.

It is preferable to remove the steam often generated as the water is heated in the hot water tank, in order to discharge the hot water from the hot water tank smoothly. In the conventional technology, the water is discharged through the dispenser. However, when the steam is largely left in the hot water discharge pipe, there is a danger that water drops in the dispenser may spill onto the user's hand or the like.

In the present invention, the steam generated in the hot water tank is discharged to the reservoir (30) through the check valve (800) so that hot water can be completely discharged from the dispenser (70). Accordingly, the inside of the hot water tank is prevented from being excessively overpressed, and safety in use is increased. In addition, it eliminates the need to install a separate steam discharge valve, which adds to the ease of design and manufacture of the hot water tank. Such a check valve can be applied not only to a hot water tank but also to a cold water tank where bubbles are likely to occur. In addition, in a water supply apparatus having two or more low-water cans, it can be used for prevention of backflow between low-water cans and for air release.

5 and 14 to 15 relate to the carbonic acid supplying member 400 according to the embodiment of the present invention.

The regulator 6 in the configuration of the carbonic acid supply member 400 lowers the pressure of the carbonic acid gas appropriately to the operating pressure of the carbonic acid mixer cylinder from the carbonic acid gas cylinder 410 for storing the carbonic acid gas at a high pressure.

In the illustrated embodiment, the regulator 6 includes a regulator body 62 and a bumper 63.

The regulator body 62 converts the pressure of the carbonic acid gas flowing from the carbonic acid gas pipe 410 to a predetermined pressure and discharges it. It may also include various components including valves to perform these functions. On the other hand, a generally used regulator 6 may be employed. The regulator body 62 is connected to the carbonic acid mixer cylinder 60 via a connecting member 646. [

One end of the bumper 63 is connected to the carbonic acid gas pipe 410 via a connecting member 646 and the other end thereof is connected to the regulator body 62 as one body. The connection of the bumper 63 to the regulator body 62 means that the bumper 63 is connected to the regulator body 62 directly or by a coupling member or the like so that the bumper 63 is connected to the regulator body 62, (Not shown). The bumper 63 allows the carbon dioxide gas discharged from the carbonic acid gas pipe 410 to stay, and then discharges the carbon dioxide gas to the regulator body 62.

The bumper 63 acts to temporarily lower the pressure of the carbon dioxide gas discharged from the carbonic acid gas passage 410 when the carbonic acid gas flows through the regulator 6. Even if the regulator according to the related art operates well, the discharged gas pressure may be unstable. There is a cost and space limitation to adopt a precision regulator 6 or to provide a device for stabilization separately.

A bumper (63) directly coupled to the regulator body (62) allows the regulator (6) to be configured compactly. The bumper 63 functions as a buffer even when a sudden pressure change in the regulator body 62 occurs when high-pressure carbon dioxide gas flows into the regulator body 62. Accordingly, the discharge pressure discharged from the regulator body 62 can be made constant at a predetermined low pressure.

The operation of the regulator body 62 is performed according to the operation of the opening / closing member 641 that opens or closes the narrowly formed discharge hole 647. The partition member 643 rises to press the opening / closing member 641 in accordance with the pressure decrease in the pressure regulating space 642, which is maintained substantially equal to the pressure inside the carbonic acid mixer cylinder, The member 641 is lifted and the discharge hole 647 is opened so that high pressure carbon dioxide gas flows into the carbonic acid mixer cylinder 60 through the pressure adjusting space 642. [

As the gas pressure in the pressure regulating space 642 is sufficiently raised, the partition wall portion 643 is pressed by the pressure and restored to the original position, and the opening and closing member 641 is lowered to return to the original position to close the discharge hole 647 . When the gas pressure in the pressure regulating space 642 is lowered, the opening / closing member 641 is lifted as described above, and the discharge hole 647 is opened to fill the pressure regulating space 642 with carbon dioxide gas.

The valve control member 644 and the valve pressurizing member 645 composed of a spring that is further compressed or less compressed toward the septum in accordance with the rotation of the valve regulating member press the partition wall portion 643 with a certain force. Since the elastic force of the valve pressing member 645 is increased or decreased as the valve adjusting member 644 is rotated, the required pressure value of the pressure adjusting space 642 for lowering the partition wall 643 can be set differently.

In a use example, the pressure of the carbon dioxide gas inputted into the bumper is 60 to 70 kgf / cm ² , and the carbonic acid gas pressure to be injected into the carbonic acid mixer can be approximately 3.5 to 4.5 kgf / cm ² . In order to stabilize the carbonic acid gas pressure passing through the regulator 6, it is necessary to make the pressure drop to some extent when the carbonic acid gas passes through the bumper 63.

The bumper of various shapes and sizes was used to test how fast the carbon dioxide gas pressure passing through the regulator converges to which specific pressure value. According to the experimental results, it was confirmed that the size of the inlet hole 631 of the bumper 63 does not exhibit a sufficient pressure drop effect when the pressure exceeds a certain level in relation to the effect of pressure intensification. Further, it has been confirmed that the bumper 63 needs to have a proper volume so that the pressure of the carbon dioxide gas discharged from the regulator 6 can be quickly and stably outputted. That is, it is necessary that a proper amount of carbon dioxide gas stays in the storage space S3 in the bumper 63 in a state where the opening and closing member 641 closes the discharge hole 647. [

The volume of the storage space in the bumper 63 may be in the range of 170 to 275 에서 under the conditions of the pressure of the carbonic acid gas cylinder and the required pressure of the carbonic acid mixer cylinder. As a result of the experiment, when the volume of the storage space S3 is less than 170 ㎣, the pressure drop in the storage space S3 is too low, so that the pressure of the carbon dioxide gas outputted from the regulator 6 may be unstable, If the pressure exceeds 275 kPa, the pressure drop is too large, so that the pressure of the carbon dioxide gas output from the regulator 6 may take a long time to reach the specified pressure.

The regulator having the bumper according to the embodiment is easy to manufacture in a small size, so that it is useful in a water supply apparatus in which components are arranged intensively. In addition, the carbonic acid gas can be supplied to the carbonic acid mixer 60 at an appropriate pressure within a short period of time, thereby improving the quality of carbonated water.

100: Water supply device
1: Body 11: Slit 2: Control panel 21: Operation button 22: Display window
200: filter means 210: filter
30: That canteen
300: air supply part 310: air piping part 311: flow path 312: hollow part
320: buoyancy ball 330: spring member 340: gasket 350: filter
360: Water level sensor
40: Hot water tank
411: airtight container 412: hot water discharge pipe 413: supply pipe 414: heater
50: cold water tank
511: airtight container 511a: inner wall surface 512: corner 513: cold water outlet pipe
513a: Inlet port 514: Feed pipe 515: Main pipe 516: Branch pipe
517: discharge port 518: seat case
60: Carbonate mixer bucket
611: air tight chamber 612: drain pipe 613: drain valve
614: carbonated water discharge pipe 615: supply pipe 616: branch pipe 617: discharge port
618: Cross pipe 619: Mounting case 620: Gas piping
621: Level sensor 622: Crushing member
500: mixing unit
S1: diffusion space S2: convergence space A: expansion angle L: length
3: Case 31: Space part 32: Inlet port
4: mounting portion 41: front body 41a: cavity 42: rear body
43: outlet 44: flow groove 45: through hole 46: hexagonal section
5: regulating portion 51: lever
70: Dispenser
711: Faucet 712: Hot water opening and closing valve 713: Cold water opening and closing valve
714: Sparkling water valve
80: Fluid pump 90: Pressure pump
90: cooling means
911: refrigerant supply unit 912: main supply pipe 913: cold water pipe conduit
914: Carbonate conduit 915: Refrigerant flow control valve
400: Carbonic acid supply member
410: Carbon dioxide cylinder 6: Regulator 62: Regulator body 63: Bumper
631: inlet hole S3: storage space 641: opening / closing member 642: pressure adjusting space
643: partition wall portion 644: valve regulating member 645: valve pressing member
646: connecting member 647: exhaust hole
420: pressure sensor 430: check valve
800: Backflow prevention valve
810: Upper housing 811: Passage 812: Perimeter 820: Lower housing
821: hollow part 822: cloth scene 830: sphere 831: recessed groove
832: Clearance 840: Sealing

Claims (11)

In a water supply device including a hot water passing-through cold water pipe supplied with water from a low water cistern and a carbonic acid mixer cistern that generates carbonated water from water and carbon dioxide gas,
A mixing unit having a diffusion space for gradually increasing a flow area of the carbonic acid water is connected to a carbonic acid water discharge pipe through which the carbonic acid water is discharged from the carbonic acid mixer container,

The mixing unit
A case for forming a space portion into which carbonated water flows into the inside,
A mounting portion coupled to the case so as to be positionally movable with respect to the case and partially inserted into the space to form the diffusion space between the case and the inner surface of the case;
And a regulating portion for moving the mounting portion with respect to the case to vary a cross-sectional area of the diffusion space. The method of claim 1,
The case and the mounting portion are screwed to each other, and the cross-sectional area of the diffusion space is changed according to the rotation of the mounting portion,
Wherein the regulating portion is a lever connected to the mounting portion. The method of claim 1,
In the end portion of the supply pipe through which the water is injected into the cold water tank or the carbonic acid mixer tank
Wherein a plurality of branch pipes for distributing the water to be injected are connected. 4. The method of claim 3,
Wherein the discharge port of the branch pipe is located adjacent to the inner wall surface of the cold water tank or the carbonic acid mixer tank or water discharged from the discharge port is formed in the structure or the inner wall surface A water supply device that allows water to flow and flow. The method of claim 1,
And cooling means for cooling the carbonic acid mixer cylinder to pass the cold water,
The cooling means
A coolant supply unit for generating and supplying cold coolant,
A cold water pipe conduit and a carbonic acid pipe conduit branched from the main supply pipe through which the coolant is discharged and connected to the carbonic acid mixer pipe,
And a coolant flow control valve for controlling the flow of the coolant supplied through the cold water pipe conduit and the carbonic acid pipe conduit. The method of claim 5,
The refrigerant flow control valve
Wherein the controller controls the flow rate of the refrigerant to be supplied in a concentrated manner to any one of the cold water tank or the carbonic acid mixer tank where the stored water is detected to be discharged. The method of claim 1,
The carbon dioxide gas is supplied from a replaceable carbon dioxide gas tank,
Wherein the detection sensor unit is provided to transmit a replacement signal to the user when the measured pressure of the carbonic acid gas in the carbonic acid gas tank drops below a predetermined reference pressure value. The method of claim 1,
Wherein the carbonic acid mixer tank is equipped with a drain pipe for discharging water therein and a drain valve for opening and closing the drain pipe,
Wherein the opening operation of the drain valve is performed when a pair of operation buttons having different functions are simultaneously operated. And a dispenser for discharging the carbonated water passing through the carbonic acid mixer or the cold / hot water, the water / carbonic acid gas producing water and the carbonic acid gas from the carbonic acid gas,
Wherein the hot water tank is a hermetically sealed container in which warm water stored by the water injected by the fluid pump is pushed out from the water storage tank and discharged through the dispenser,
The water tank is filled with water,
Wherein the hot water tank is installed at a relatively low height as compared with the water reservoir and the dispenser provided at an equal height,
The hot water tank is filled with water by injecting the water of the low water tank in a state where the hot water opening and closing valve that opens and closes the hot water discharge pipe discharged by the hot water is discharged to the dispenser, And when the predetermined water level is detected, the water supply valve is locked to secure the water level of the hot water tank. The method of claim 9,
The low-
An air supply unit for sucking outside air is provided in the reservoir,
The air supply unit
An air piping portion having a hollow portion communicating with the flow path,
A buoyant ball which is vertically movable in the hollow portion and which is raised by the buoyant force in accordance with the rise of the water level in the reservoir,
And a spring member for elastically supporting a lower end of the buoyancy ball to complement a lifting force of the buoyancy ball. 11. The method of claim 10,
A leakage detection sensor for detecting carbon dioxide gas is provided in an inner bottom portion of the water supply device,
And a gas warning unit for warning a user of leakage of carbon dioxide gas by the leakage sensor.

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