JP3876851B2 - Water heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a built-in type hot water supply apparatus for supplying hot water for drinking and cooking used in general households.
[0002]
[Prior art]
An open-type hot water storage container type hot water supply device built in a conventional sink cabinet is composed of two pipes, one connected to the main body of the apparatus and the other connected to the outlet of the faucet and the other connected to the steam escape port (air port). It has a configuration that requires a main pipe (only a pipe related to hot water and not a pipe related to purified water) (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-195652
[Problems to be solved by the invention]
However, the conventional configuration requires two pipes (only pipes related to hot water), a pipe communicating from the main body to the tap outlet of the faucet part and a pipe communicating to the steam escape port. Is complicated, costly, and complicated to install.
[0005]
The present invention solves the above-described conventional problems, and an object thereof is to provide a built-in type hot water supply device that simplifies piping as a whole, reduces costs, and simplifies installation work.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a hot water supply apparatus of the present invention includes a main body of a device built in a sink cabinet, a container for hot water storage that is built in the main body and is equipped with a heating device to boil before boiling, and a container A water supply path having an opening and closing device, one end communicating with the container and the other end communicating with the tap outlet, and one end communicating with the upper air layer in the container and the other end outside the main body. communicates with the open the open mouth, the the open port near the air liquid can pass are those having an air path coordinated air input and apparatus having an air permeable membrane which does not transmit.
[0007]
As a result, the piping related to the hot water communicating from the main body to the water faucet is made one, the piping having the opening is processed only on the main body side, the piping as a whole is simplified, the cost can be reduced, and the installation work can be simplified. A built-in type hot water supply apparatus can be provided.
[0008]
Further, dust and the like can be prevented from entering the air path.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention of claim 1 includes a main body of the device incorporated in the sink cabinet, built in said body, a container for the hot water storage to boiler before the heating device is attached to boiling and the water supply to the container, A water supply path having an opening / closing device, a hot water supply path whose one end communicates with the container and the other end communicates with a hot water outlet of the faucet, and one end communicates with an upper air layer in the container, and the other end is opened outside the main body communicates with the the mouth opening, by although the air release opening near may pass to the water heater having an air path coordinated air input and apparatus having an air permeable membrane that liquid does not pass, the faucet from the body One pipe is connected to the hot water to be communicated, and a pipe having an open port is processed only on the main body side, thereby simplifying the piping as a whole, reducing costs, and simplifying the installation work.
[0010]
Further, dust or the like can be prevented from entering the air path by the air inlet / outlet device.
[0011]
According to a second aspect of the invention, the body of the a device built in the sink cabinet, the incorporated within the body, a container for the hot water storage to boiler before the heating device is attached to boiling and the water supply to the container A water supply path having an opening and closing device, a water discharge path having one end communicating with the container and the other end communicating with a tap outlet of the faucet, and one end communicating with an upper air layer in the container. communicates with the the open mouth opening, said opening opening neighborhood by although air may pass to the water heater having an air path coordinated air input and apparatus having an air permeable membrane that liquid does not pass through, faucet from the body One pipe for hot water communicating with the pipe is processed, and a pipe having an open port is processed only on the main body side, thereby simplifying the piping as a whole, reducing costs, and simplifying the installation work. At the same time, since the opening is opened in the main body, it is possible to reduce dust and the like from entering the air path.
[0012]
Further, dust or the like can be prevented from entering the air path by the air inlet / outlet device.
[0013]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0014]
( Reference Example 1)
FIG. 1 shows a hot water supply apparatus in Reference Example 1 of the present invention.
[0015]
In the figure, 1 is a general water pipe, 2 is a sink cabinet, 3 is a main body of a device built in the sink cabinet 3, 4 is a water supply path for branching from the water pipe 1 and supplying water to the main body 3, and 5 is a water supply path 4 An open / close device 6 that can be opened and closed and is capable of opening and closing the water channel, is a substantially sealed hot water storage container built in the main body 3, and is supplied with water from the water supply path 3.
[0016]
7 is a heating device that heats the liquid in the container 6 to a predetermined temperature and keeps the liquid at a constant temperature, 8 is a hot water discharge path for discharging the liquid in the container 6 to the outside, one end communicating with the container 6 and the other end being a faucet Communicate with the hot spring outlet (described later).
[0017]
9 is a hot water discharge device such as an impeller-type pump disposed in the middle of the hot water discharge path 8, 10 is a faucet installed facing the sink on the upper surface of the sink cabinet 2, and 11 is connected to the upper part of the container 6 of the water supply path 4. A water supply port 12 is a water tray located above the full water level in the container 6 and located below the water supply port 11, and 13 is a water supply that temporarily stores water supplied to the water tray 12 and gradually guides it to the vicinity of the heating device 7. A pipe 14 is a water intake that is one end of the hot water discharge path 8, and is provided at a position slightly higher than the bottom surface of the container 6.
[0018]
15 is a hot water outlet provided in the faucet 10 at the other end of the hot water supply path 8, and 16 is purified water for purifying tap water disposed between the opening / closing device 5 of the water supply path 4 and the water supply port 11 with activated carbon or a hollow fiber membrane filter. The cartridge, 17 is a switching valve disposed between the water purification cartridge 16 and the water supply port 11, 18 is a water purification port, 19 is a water purification path communicating the switching valve 17 and the water purification port 18, and 20 is a water temperature for detecting the water temperature in the container 6. A sensor, 21 is an open port that is open to the outside of the main body 3, 22 is an air path in which one end communicates with the air layer in the upper part of the container 6, and the other end communicates with the open port 21, and 24 detects the water level in the container 6. A water level sensor 25 is a display operation unit disposed on the faucet 10, and 26 is an opening / closing device 5, a heating device 7, a hot water supply device 9, and a switching valve 17 based on information from the water temperature sensor 20, water level sensor 23, display operation unit 25, etc. Control equipment to control etc. It is.
[0019]
About the hot water supply apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, tap water is purified by the water purification cartridge 16 by opening and closing the opening / closing device 5 and supplied in small amounts of about 100 to 200 ml. At this time, the supplied water is once received by the water receiving tray 12 and slowly passes through the water supply pipe 13 and is gently supplied near the bottom lower than the water intake 14 of the container 6 due to the difference in specific gravity due to the temperature of the water. When a certain amount of water is supplied, it is detected that the water has been supplied by the water temperature sensor 20, heating is started by the heating device 7, heated to a predetermined temperature by the water temperature sensor 20, and heated to boiling before boiling. By repeating this water supply and heating, the water level sensor 24 continues heating to a predetermined amount of hot water (full water level). After the heating is completed, the process proceeds to heat insulation and the hot water temperature is maintained at a constant temperature. As the hot water temperature in the container 6 rises due to heating, the air layer in the upper part of the container 6 expands, but is released from the air path 22 to the atmosphere through the opening 21.
[0020]
The hot water in the container 6 can be arbitrarily discharged from the hot water outlet 15 through the hot water outlet path 8 from the water inlet 14 in the container 6 by the hot water outlet device 9 by an external operation to the display operation unit 25. At this time, as the hot water in the container 6 decreases, air can be taken in from the opening 21 and smooth hot water can be discharged. Further, since the container 6 is opened to the atmosphere through the opening 21, the hot water in the hot water discharge path 8 quickly returns to the same level as the water level in the container 6 after the hot water is stopped.
[0021]
When the amount of hot water in the container 6 decreases after pouring, the control device 26 automatically opens and closes the opening / closing device 5 based on information from the water level sensor 24, and the above-mentioned small water amount heating (a single water supply is about 100 to 200 ml). Water supply / heating is repeated until a predetermined amount of water (full water level) is maintained, and the predetermined amount of water is always maintained. Even during the water supply into the container 6, the water intake 14 is located at a position slightly higher than the bottom surface of the container 6, so that the water slowly supplied due to the difference in specific gravity due to the temperature of the water is gently supplied to the bottom of the container 6. For this reason, only the hot water in the original container 6 can be taken out. Using this hot water for drinking and cooking, you can drink and cook efficiently.
[0022]
In addition, since the air path 22 communicates with the atmosphere through the opening 21 of the main body 3 part, the space between the main body 3 and the faucet 10 can be realized by a single pipe, simplifying the pipe, reducing costs, Piping work can be simplified.
[0023]
( Reference Example 2)
FIG. 2 shows a hot water supply apparatus in Reference Example 2 of the present invention. The difference from the reference example 1 is that the opening 21 of the air path 22 is opened inside the main body 3. Others are the same.
[0024]
Thus, in this reference example, since the opening 21 of the air passage 22 is opened inside the main body 3, the space between the main body 3 and the faucet 10 can be realized by a single pipe, simplifying the pipe and reducing the cost. In addition to simplification of piping work, the opening 21 is opened in the main body 3, so that dust and the like can be reduced from entering the air path 22.
[0025]
(Example 1 )
FIG. 3 shows the main part of the hot water supply apparatus in Embodiment 1 of the present invention. The difference from Reference Examples 1 and 2 is that an air inlet / outlet device 28 having an air permeable film 27 that allows air to pass but does not allow liquid such as water to pass therethrough is provided in the vicinity of the opening 21 of the air path 22. In the figure, (a) shows the configuration in which the opening 21 is opened to the surface outside the main body 3, and (b) shows the configuration in which the opening 21 is opened in the main body 3. Others are the same as Reference Examples 1 and 2.
[0026]
In the present embodiment, an air inlet / outlet device 28 having an air permeable film 27 that allows air to pass but does not allow liquid such as water to pass therethrough is provided near the opening 21 of the air passage 22 so that the faucet is removed from the main body 3. The number of pipes communicating with the 10 outlets 15 is reduced to one, simplifying the piping, reducing costs, and further simplifying the installation work. In addition, the air inlet / outlet device 28 allows dust and the like to pass through the air path 22. It can prevent entering.
[0027]
( Reference Example 3 )
FIG. 4 shows the main part of the hot water supply apparatus in Reference Example 3 of the present invention. The difference from the reference examples 1 and 2 is that a second opening / closing device 29 is arranged in the vicinity of the opening 21 of the air path 22. The opening / closing device 29 is normally closed, and is opened only when supplying water, boiling water, tapping water, etc., and the pressure change in the container 6 is released to atmospheric pressure. Also, the subtle pressure change during heat insulation is predetermined. By repeating opening and closing at the same timing, the pressure in the container 6 is released to the atmospheric pressure and the atmospheric pressure is maintained. In the figure, (a) shows the configuration in which the opening 21 is opened to the surface outside the main body 3, and (b) shows the configuration in which the opening 21 is opened in the main body 3. Others are the same as Reference Examples 1 and 2.
[0028]
In this reference example, since the second opening / closing device 29 is disposed in the vicinity of the opening 21 of the air passage 22, the piping that communicates from the main body 3 to the hot water outlet 15 of the faucet 10 is made one, and the piping is simplified. Thus, the cost can be reduced, the installation work can be simplified, and dust and the like can be reduced from entering the air path 22.
[0029]
【The invention's effect】
As described above, according to the hot water supply apparatus of the present invention, one pipe for hot water communicating from the main body to the faucet is processed, the pipe having an open port is processed only on the main body side, and the piping as a whole is simplified. It is possible to provide a built-in type hot water supply apparatus that can reduce costs and simplify installation work.
[0030]
Further, dust or the like can be prevented from entering the air path by the air inlet / outlet device.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the overall configuration of a hot water supply apparatus in Reference Example 1 of the present invention. FIG. 2 is a cross-sectional view showing the overall configuration of a hot water supply apparatus in Reference Example 2 of the present invention. Sectional drawing which shows the structure which open | released the open port outside the main body in the hot-water supply apparatus in Example 1 of this (b) is sectional drawing which shows the structure which open | released the open port in the main body. Sectional drawing which shows the structure which open | released the open port outside the main body in the hot-water supply apparatus in Reference Example 3 (b) is a cross-sectional view which shows the structure which opened the open port in the main body.
DESCRIPTION OF SYMBOLS 3 Main body 4 Water supply path 5, 29 Opening / closing device 6 Container 7 Heating device 8 Hot water discharge path 9 Hot water discharge device 10 Faucet 15 Hot water outlet 21 Opening port 22 Air path 28 Air in / out device

Claims (2)

A body of the device which is incorporated in the sink cabinet, built in said body, a container for the hot water storage to boiler before the heating device is attached to boiling and the water supply to the container, and a water supply path having a switchgear, one end There a pouring path and the other end communicates with said container which communicates with the outflow position of the faucet, with the other end communicates with the upper portion of the air layer of one end of said container in communication with the mouth opening which opens outside the body, wherein Although the opening port near the air can pass through the water heater having an air path coordinated air input and apparatus having an air permeable membrane that liquid does not pass through. A body of the device which is incorporated in the sink cabinet, built in said body, a container for the hot water storage to boiler before the heating device is attached to boiling and the water supply to the container, and a water supply path having a switchgear, one end and There pouring path and the other end communicates with said container which communicates with the outflow position of the faucet, with the other end communicates with the upper portion of the air layer in one end the vessel is communicated with the mouth opening which opens into the main body, wherein Although the opening port near the air can pass through the water heater having an air path coordinated air input and apparatus having an air permeable membrane that liquid does not pass through.

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