JP3385779B2 - Electric water heater - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply mechanism for an electric water heater having a water purifier and a heating container inside.

[0002]

2. Description of the Related Art Conventionally, in an electric water heater having a water purifier and a heating water heater in the same main body, it is necessary to supply water to the water purifier and to the heating container of the heating water heater in separate water supply paths. It was

If water is supplied to the water purifier and the heating container through the same route, the water purifier cannot be used while water is being supplied to the heating container, or the tap of the water supply is stopped to stop the water supply to the water supplier. This is because when it is closed, the supply to the heating container is also stopped, and it was difficult to automatically supply water to the heating and boiling unit side.

FIG. 6 shows a conventional specific structure. Reference numeral 1 is a main body of an electric water heater, and 2 is a heating container of a heating water heater. 3 is a water purifier composed of activated carbon filter,
Reference numeral 4 is a purified water outlet, and 5 is a hot water outlet. 6 is a heater. A water faucet 7 supplies water to the water purifier 3 and is connected to the water supply port of the water purifier 3. On the other hand, water was supplied to the heating container 2 through the branch faucet 8 through another route without passing through the water faucet 7, and water was supplied to the heating container 2 by opening and closing the water supply valve 9.

In such a conventional system, it is necessary to connect two water supply pipes 10a to the water purifier 3 and two water supply pipes 10b to supply water to the heating container 2, which makes it difficult to construct a pipe for water supply and the heating container. As for the water supplied to 2, the raw water of the tap water flows in as it is, and there is a problem that the purified water cannot be boiled even though the water purifier 3 is provided in the main body.

Therefore, in order to solve the above-mentioned problems, the water supply faucet work is simplified by unifying the water supply path, and the water purified by the water purifier is supplied into the heating container to heat the water purifier and the boiling water. There is a demand for a configuration that allows simultaneous use of parts.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has a first object of supplying water from a water faucet to a water purifier and a heating container with a single water supply pipe, as well as a water purifier and a heating kettle. It provides an electric water heater with a water purifier that can be used independently, and that can supply delicious water and hot water purified by a water purifier to the heating water heater.

In addition to the above object, the invention according to claim 2 is such that the amount of water to be supplied to the water purifier is adjusted by a manual operation similar to that of a faucet of a water supply. It is intended to allow large amounts of water to be widely used.

Further, in addition to the above-mentioned object, the object of the invention of claim 3 is to switch the water supply to the heating container and supply the water to the water purifier even when the water purifier is used during the water supply to the heating kettle. The water purifier can be used independently even when supplying water to the heating water heater.

Further, in addition to the above-mentioned object, the object of the invention of claim 4 is to use it so that the water supply timing to the heating water boiling portion can be detected by automatically detecting the amount of water in the heating container and automatically supplying water to the heating container. It is intended to improve.

[0011]

In order to achieve the above-mentioned object, the present invention has a single water supply port connected to a water supply pipe directly connected to a water supply, and this water supply port is branched in two directions. Of the water supply valve and the second water supply valve on the other side, the output sides of the first water supply valve and the second water supply valve are both connected to the input side of the water purifier, and a water flow is output to the output side of the water purifier. A first switching valve for switching in two directions is provided, one output side outlet of the first switching valve is connected to the purified water discharge port, and the other one is connected to the heating container water injection port of the heating and boiling unit, The output of the switching valve No. 1 is normally opened to the purified water discharge port side, and the output of the first switching valve is switched to the in-container water injection port side of the heating water heating portion only when the second water supply valve is opened. It is a thing.

According to a second aspect of the present invention, in the first aspect of the invention, the first water supply valve has an opening / closing handle that is manually opened, and the water channel is determined by the rotation angle of the opening / closing handle or the moving distance. A flow rate control valve section capable of adjusting the opening area of is provided so as to adjust the amount of water flowing into the water purifier.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the first water supply valve is provided with an opening / closing handle that is manually opened, and the opening / closing handle is provided with a second water supply. The valve is closed and an interlocking switch for switching the first switching valve to the purified water discharge side is provided.

Further, the invention according to claim 4 is the same as claim 1.
In the invention described in any one of 1 to 3, the second water supply valve opens when the water amount detecting means for detecting the water amount in the heating container detects that the water amount is less than or equal to the first set value, and the water amount detecting means is the second It is configured to close when it is detected that the value is equal to or more than the set value of.

[0015]

In the structure of the invention described in claim 1, water is supplied to the water purifier and the heating water heater through the water supply pipe directly connected to the water faucet, but since the water is supplied by the independent water supply valves, the water purifier and the heating device are heated. The water heater can be used independently. Then, since the water supply to the heating water heating portion is supplied from the second water supply valve through the water purifier, the water supplied from the heating water heating portion can also be purified water.

Further, according to the invention of claim 2, the amount of water to be supplied to the water purifier is adjusted by a manual operation similar to that of a faucet, so that the water from the purified water discharge port is cooked from a small amount of water into a cup or the like. It is intended to be able to widely use a large amount of water for use. Further, since it is a manual operation, the water supply path on the side of the water purifier can be used even in the event of a power failure, etc., so that there is an effect that water can be supplied to the user in the same manner as in normal times.

When the water purifier is used during the water supply to the heating water heater according to the configuration of the third aspect of the invention, the water supply to the heating container is switched and the water purifier is independently used during the water supply to the heating water heater. It enables you to do it. Also,
By closing the second water supply valve, the water flows only in the first water supply valve path, so that the amount of water can be adjusted in the same manner as in a normal water purifier.

Further, when the amount of water in the heating container becomes less than or equal to the first set value, the second
The water supply valve is opened to supply water into the heating container, and when the amount of water in the container increases and exceeds the second set value, the second water supply valve is closed to complete the water supply. Therefore, since the water supply to the heating container is automatically supplied by the internal water amount, there is no trouble such as cooking, and the trouble of supplying water to the container is eliminated.
Usability is improved.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric water heater according to an embodiment of the present invention will be described with reference to FIGS.

In the figure, 11 is a main body of an electric water heater. Reference numeral 12 is a water purifier equipped with a filter containing activated carbon, a hollow fiber membrane or the like for removing impurities in the raw water of the tap water. Reference numeral 13 is a purified water discharge port. Reference numeral 14 is a heating and boiling unit, which is composed of a heating container 15, a heater 15a, and an electric pump 17 which sends hot water in the heating container 15 to a discharge port 16. Reference numeral 18 is a heating container water inlet for introducing purified water into the heating container.

Reference numeral 19 is a tap for supplying water from a tap water supply pipe 21 such as a pressure hose connected to a water supply port 20 of the body of the electric water heater. The main body water supply port 20 constitutes a flow path that branches the water flow therein into two directions. One output side outlet 20a is provided with a first water supply valve 22 and the other output side outlet 20b is provided. A second water supply valve 23 is provided in the.

The outlets 22b and 23b of the first water supply valve 22 and the second water supply valve 23 are both connected to the input side inlet 12a of the water purifier 12. On the other hand, a first switching valve 24 having an electromagnetic valve or the like is provided at the output side outlet 12b of the water purifier, and switching can be performed in two directions by switching the valve 24a formed therein. Here, one output side outlet (hereinafter referred to as a normally open outlet) 24b that is normally opened is connected to the purified water discharge port 13, and the other one is always closed and an output side outlet (hereinafter referred to as a normally closed outlet) that is opened only when energized. 24c is connected to the heating container water injection port 18. In addition, the first water supply valve 22 and the second water supply valve 23
Is a water supply valve that is opened as required, and is a manual or electromagnetic valve. However, the second water supply valve 23
Is opened, at the same time, the first switching valve 24 is interlocked to switch the output of the switching valve to the water injection side of the heating container. Reference numeral 25 is a drive circuit that drives the second water supply valve 23 and the first switching valve 24 in conjunction with each other, and 26 is a water purification operating unit that opens the first water supply valve by electrical or mechanical means. Reference numeral 27 denotes a water supply operation unit for the heating and boiling unit, which opens the second water supply valve by electrical or mechanical means.

The operation and operation of this embodiment having the above structure will be described. When the tap 19 of the water supply is opened and water is supplied from the water supply pipe 21 to the water supply inlet 20 of the main body, it becomes ready for use. However, since the first and second water supply valves 22 and 23 are provided at the output side outlets 20a and 20b of the main body water supply port, respectively, the inflow of tap water is blocked by these two water supply valves. Even if the faucet 19 is left open, it does not flow into the purified water discharge port 13 or the heating container 15 side.

Therefore, when using purified water, the purified water operating portion 26 is operated to open the first water supply valve 22, and the raw water of the tap water flows into the purifier and is purified by the filter 28 composed of activated carbon or the like. After that, the water is discharged from the purified water discharge port 13 to the outside via the normally open outlet 24b of the first switching valve 24.

When pouring water into the heating container 15,
At the same time when the second water supply valve 23 is opened, the valve 24a of the first switching valve 24 operates so that the normally closed outlet 24c side is "open", and the purified water output from the water purifier 12 is the heating container injection port 1
Water is poured into the container from 8.

As described above, in this embodiment, the tap water supplied from the single water supply port is purified by the single water purifier 12 through the first and second water supply valves 22 and 23 and then the purified water is discharged. Exit 1
3 or hot water boiling portion 14 can be used for water discharge and hot water discharge. In addition, as described above, the water supply valves 2 are independent of each other.
Since the water is supplied by 2, 23, the water purifier 12 and the heated water boiling portion 14 can be used independently.

Another embodiment of the present invention will be described with reference to FIGS. FIG. 3 shows a specific configuration of the water purifying operation unit 26, in which the first water supply valve 22 is incorporated into a water channel body 30, and an opening / closing handle 29 which can be manually operated directly from the outside of the electric water heater body 11 is provided. It is a thing.
Since the flow rate adjusting valve unit 31 for adjusting the opening area of the water channel is configured by the rotation angle of the opening / closing handle 29, the moving distance, or the like, the amount of water flowing into the water purifier 12 can be adjusted.

The operation of this embodiment having the above structure will be described. Since the amount of water to be supplied to the water purifier 12 is adjusted by manually operating the opening / closing handle as in the case of the faucet of the water supply, the amount of purified water discharged from the purified water discharge port 13 can be widened from a small amount of water into a cup to a large amount of water for cooking. . Further, since it is a manual operation, the water supply path on the water purifier side can be used even in the event of a power failure, etc., and water can be supplied to the user in the same manner as in normal times.

Further, an interlocking switch 32 composed of a micro switch is arranged on the opening / closing handle 29, and when the opening / closing handle 29 is opened by pressing the switch button 32a, the switch button 32 is interlocked.
a is designed to work. On the other hand, 25 is a drive circuit for driving the second water supply valve 23 and the first switching valve 24,
The energization is stopped according to the output of the interlock switch 32. Therefore, when the output signal is sent from the interlocking switch 32 while the second water supply valve 23 and the first switching valve 24 are energized, the second water supply valve 23 closes and the first switching valve 24 returns to the original state. It will return to the state.

The operation and effect of this embodiment having the above-mentioned structure will be described. When the water purifier 12 is used for supplying water to the heating water boiling portion 14, when the opening / closing handle 29 of the first water supply valve 22 is operated, the second water supply valve 23 is closed by the interlock switch 32, and The switching valve 24 of No. 1 can be switched to the purified water discharge port 13 side. Therefore, the water purifier 12 can be used independently even when water is supplied to the heating container 15. The second water supply valve 23
Since the water supplied through only the path of the first water supply valve 22 flows by closing, the flow rate can be adjusted in the first water supply valve 22 to adjust the amount of water in the same manner as a normal water purifier.

Further, another embodiment of the present invention will be described with reference to FIG. In the figure, a water level pipe 33 is attached to the side surface of the heating container 15, and water level sensors 33a and 33b for detecting the water level are provided at predetermined positions in the lower and upper portions. These are collectively referred to as water amount detection means 34. Here, when the amount of water falls below the set position (first set value) of the lower water level sensor 33a, the signal is sent to the drive circuit 25 of the second water supply valve 23 and the second water supply valve 23 Is energized to open the second water supply valve 23. Further, when the amount of water rises from the position where the upper water level sensor 33b is set (the second set value), the signal is sent to the drive circuit 25 of the second water supply valve to energize the second water supply valve 23. Stop and second
Close the water supply valve.

The operation and effect of this embodiment having the above-mentioned structure will be described. The amount of water in the heating container 15 that constitutes the heating / boiling unit 14 is the sensor position at the bottom (first set value).
When it becomes 33a or less, the second water supply valve 23 is opened to supply water into the heating container 15, and when the amount of water in the container increases and exceeds the upper water level sensor position (second set value) 33b, The second water supply valve 23 is closed to complete the water supply. Therefore, the water supplied to the heating container 15 is automatically supplied according to the amount of the internal water, so that problems such as cooking are spread and the trouble of supplying water to the container is eliminated.

[0033]

As can be seen from the above description, the present invention supplies water from the tap to the water purifier and the heating water heater with a single water supply pipe, facilitating water supply work and using independent water supply valves. Since it is supplied with water, the water purifier and the heated water heater can be used independently. Moreover, since the water supplied to the heating water boiling portion is supplied from the second water supply valve through the water purifier, the hot water from the heating water boiling portion can also be purified water.

Further, since the amount of water to be supplied to the water purifier is adjusted by a manual operation similar to that of a faucet of the tap water by means of the opening / closing handle, the amount of water discharged from the water purification outlet can be changed from a small amount of water into a cup to a large amount of water for cooking. It can be widely used. Furthermore, since it is a manual operation, the water supply path on the side of the water purifier can be used even in the event of a power outage, so that it is possible to obtain the effect that water can be supplied to the user in the same manner as in normal times.

Further, when the water purifier is used during the water supply to the heating water boiling portion, the water supply to the heating container is switched so that the water purifier can be independently used even during the water supplying to the heating water boiling portion. Further, by closing the second water supply valve, the water that has been supplied only through the first water supply valve path flows, so that the amount of water can be adjusted as in a normal water purifier.

Further, when the amount of water in the heating container becomes equal to or less than the first set value, the second water supply valve is opened to supply water into the heating container to increase the amount of water in the container, and the second set value is set. When it exceeds, the second water supply valve is closed to complete the water supply. Therefore, since water is automatically supplied to the heating container according to the amount of the internal water, there is no problem such as cooking, and there is no need to supply water to the container, which improves usability.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an essential part of an electric water heater according to an embodiment of the present invention.

2 is an external perspective view of the embodiment shown in FIG.

FIG. 3 is a detailed cross-sectional view of main parts showing the water supply structure of the embodiment.

FIG. 4 is an explanatory view of a main part of the water supply control mechanism of the embodiment.

FIG. 5 is a cross-sectional view of an essential part of the means for detecting the amount of water in the heating container of the embodiment

FIG. 6 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

11 Electric water heater body 12 Water purifier 13 Clean water outlet 14 heating kettle 15 heating container 18 Heating container water inlet 20 Main body water supply port 21 Water supply pipe 22 First water supply valve 23 Second water supply valve 24 First switching valve 24b Output outlet of the first switching valve (normally open outlet) 24c Output side outlet of first switching valve (normally closed outlet) 29 Open / close handle 31 Flow control valve 32 interlocking switch 34 Water volume detection means

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Maekawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-5-56848 (JP, A) JP-A-5- 331888 (JP, A) JP-A-62-254888 (JP, A) JP-A-59-63443 (JP, A) Actual Kaihei 2-38041 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47J 27/21 101 C02F 1/28

Claims (4)

(57) [Claims] 1. A single water supply port connected to a water supply pipe directly connected to a water supply, and the water supply port are branched in two directions, and a first water supply port is provided on one side.
Of the water supply valve and the second water supply valve on the other side, the output side of the first water supply valve and the output side of the second water supply valve are both connected to the input side of the water purifier, and the output side of the water purifier has a water flow. A first switching valve for switching between two directions, the one output side outlet of the first switching valve is connected to the purified water discharge port, and the other one is connected to the heating container water injection port of the heating water boiling unit, First
The output of the switching valve is normally opened to the purified water outlet side, and the output of the first switching valve is switched to the injection port side in the heating container only when the second water supply valve is opened. Electric water heater with. 2. The first water supply valve has an opening / closing handle that is manually opened, and the amount of water flowing into the water purifier is adjusted by changing the opening area of the water channel according to the rotation angle of the opening / closing handle or the moving distance. The electric water heater according to claim 1, wherein a flow rate control valve section that enables the electric water heater is provided. 3. The first water supply valve has an opening / closing handle that opens manually, and the opening / closing handle is provided with an interlocking switch for closing the second water supply valve and switching the first switching valve to the purified water discharge side. The electric water heater according to claim 1, which is provided. 4. The second water supply valve opens when the water amount detecting means for detecting the water amount in the heating container of the electric water heater detects that the water amount is less than or equal to the first set value, and the water amount detecting means operates as the second water amount detecting means.
The electric water heater according to any one of claims 1 to 3, wherein the electric water heater is closed when it is detected that the value is equal to or more than the set value.