JPH08247308A - Hot water tap unit - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a water filling faucet unit capable of constructing an automatic water filling system which is easy to install and works and easy to use. [Structure] A connecting portion 41 of a hot water stopper unit 52 is connected to a hot water supply pipe 3 which is provided from a hot water supply pipe 2 side of a water heater 1 to a bathtub 4 side. The hot water plug unit 52 includes a hot water discharge passage 53, a hot water discharge tap 5 provided in the hot water discharge passage 53, a bypass passage 17 that connects the upstream side and the downstream side of the hot water discharge tap 5, and the bypass passage 17
And a drop solenoid valve (18) interposed therebetween are integrated and configured. When performing automatic filling of water in the bathtub 4, the drop solenoid valve 18 is opened and the hot water produced by the water heater 1 is dropped from the hot water supply pipe 3 into the bathtub 4 through the bypass passage 17.
When the amount of pouring water or the pouring time reaches a preset value, the pouring electromagnetic valve 18 is closed and the pouring operation is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water filling plug unit for dropping hot water from a water heater into a bathtub to fill the water.

[0002]

2. Description of the Related Art For example, FIGS. 7 and 8 show an automatic water filling system apparatus which operates an automatic water filling function of a water heater to automatically fill a bathtub. In the device shown in FIG. 7, the hot water supply pipe 2 of the hot water supply device 1 is branched from the hot water supply pipe 3, and the tip end side of the hot water supply pipe 3 is arranged above the bathtub 4.
A hot water tap 5 is provided on the tip side of the hot water supply pipe, and an automatic stop valve 7 such as an electromagnetic valve is provided in the hot water supply pipe 2 in the equipment case 6.
A control device (not shown) for controlling the combustion operation of the water heater 1 and the automatic water filling operation is provided in the equipment case 6, and the control device is provided with a switch for instructing the automatic water filling. Remote control 8 is connected.

When performing automatic filling of the bathtub 4 with this apparatus, the tap 5 is opened and the remote control 8 turns on the automatic filling operation switch. Then, the water heater 1 opens the automatic stop valve 7 to perform the combustion operation of the water heater 1, receives the signal from the flow sensor (flow rate sensor) installed in the appliance, and drops it into the bathtub 4 through the hot water pipe 3. The amount of hot water to be accumulated is integrated, and when the accumulated amount of dropped water reaches a predetermined value, the automatic stop valve 7 is closed and the automatic filling operation is finished.

The apparatus shown in FIG. 8 has a hot water supply pipe 3 which is branched from the hot water supply pipe 2 of the water heater 1 and is provided above the bathtub 4, as well as hot water dedicated to the filling of water which is branched from the hot water supply pipe 2. The upholstered pipe 10 is connected to the wall surface of the bathtub 4, and an automatic hot water filling valve 11 such as a solenoid valve, a vacuum breaker 12 and a check valve 13 are connected in series to the hot water filling pipe 10 in the device.

When filling water with this system unit, operating the remote control 8 to push the automatic filling switch will open the automatic filling valve 11 and start the combustion operation of the water heater 1.
The hot water produced by the water heater 1 is passed through the water filling pipe 10 to the bathtub 4
Be dropped into. The control device in the water heater 1 receives the flow rate detection signal of the flow sensor installed in the appliance to obtain the cumulative amount of water dropped, and closes the automatic water filling valve 11 when a preset value is reached. And finish the hot water filling operation.

[0006]

However, in the system apparatus shown in FIG. 7, when the hot water sent from the hot water supply pipe 2 is used in the automatic water filling, for example, in a kitchen or the like, the automatic water filling is performed. After that, the automatic stop valve 7 is closed, so that there is an inconvenience that the hot water used in the kitchen also stops.

Further, when the sequence program of the control device is reset using the remote controller 8 when the automatic filling is completed, it is necessary to confirm that the person has purposely went to the bathroom and closed the hot water tap 5. There is an inconvenience that it must be done afterwards, and further, when the tap 5 is a mixed tap, it seems that the hot water on the water heater side and the water on the water pipe side were mixed and dropped into the bathtub 4. In this case, when the automatic stop valve 7 is closed at the end of the filling of water, there is a problem that only water is left out of the mixing faucet and poured into the bathtub 4, resulting in poor usability.

Since the system apparatus shown in FIG. 8 is provided with the water filling pipe 10 dedicated to the water filling and the water filling pipe 10 is provided with the automatic water filling valve 11, the problem of the device shown in FIG. 7 does not occur. Normally, this water filling pipe 10 must be piped from the water heater 1 outside the bathroom to the bathtub 4 through the wall hole in the bathroom, and there is a problem that the installation piping work is large and the construction cost increases.

[0009] In a general household, the proportion of the system apparatus having the automatic water filling function is still low, and normally, a single-function water heater without the water filling function is often used. When replacing the hot water supply single-function device without the water filling function with the water heater having the automatic water filling function, the device shown in FIG. 7 has the inconvenience as described above. In order to newly install the water filling pipe 10, it is necessary to make a wall hole in the bathroom wall surface or to carry out a difficult work of drawing the piping around the bathroom floor, etc. In some cases, construction was almost impossible, and it was extremely difficult to replace it with a device that was easy to use.

By the way, in the system apparatus as shown in FIG. 7, a faucet unit may be attached instead of the hot water tap 5 of the hot water supply pipe 3, and as this kind of faucet unit, the one shown in FIG. 9 is known. Has been. The unit shown in (a) of FIG. 9 has a pipe 46 on the water supply side and a pipe 47 on the hot water side, which are connected to water supply or the like.
And merging via the single faucets 48a and 48b, respectively, and branching from the merging pipe through the switching cock 39 into a pipe on the shower 44 side and a pipe for dropping drip into the bathtub 4,
The hot water pipe 47 is connected to the hot water supply pipe 3. The faucet unit shown in FIG. 9 (b) is a unit of a wax thermo type temperature controlled mixing faucet, and the amount of water entering the pipe 46 on the water supply side and the amount of hot water are controlled by the wax thermo 49 adjusted to the temperature of the filling water. Side tube 47
The amount of hot water coming in through is controlled to create hot water at the set temperature. The hot water passes through the water stop valve with water quantity counter 50, and through the switching cock 39 to the pipe on the shower 44 side and the bathtub 4. It is designed to be guided to a desired tube with the tube on the drop-in side. The water stop valve with water quantity counter 50, by manually setting the water quantity, the amount of hot water passing through this water stop valve 50 is counted, and the valve automatically closes when the count integrated value reaches the set value, The filling of water is stopped.

In the water faucet unit shown in FIG. 9 (c), the shower 44 and the switching cock 39 in FIG. 9 (b) are omitted,
The hot water discharged from the water stop valve 50 with a water counter is dropped directly into the bathtub 4. In each of the faucet units of FIGS. 9A, 9B, and 9C, the hot water side pipe 47 is connected to the hot water supply pipe 3 to perform hot water filling. When filling water using the faucet unit, it is necessary to manually operate the single faucets 48a and 48b to adjust the amount of water and the amount of hot water, and at the end of filling water. The inconvenience is that the sequence program on the water heater side cannot be reset unless the user goes to the bathroom and closes the single faucets 48a and 48b.

Further, when water filling is performed using the water faucet unit shown in FIG. 9B, the water stop valve with water counter 50 is automatically closed when the water filling is completed. Although it is possible to immediately reset the water filling control sequence program using, there is the trouble that the next time the water is filled, the user has to bother to go to the bathroom and reset the water counter.

Further, even when the faucet unit shown in FIG. 7C is used, as in the case of FIG. 7B, every time water is filled, the user goes to the bathroom to set the water quantity counter. There is the inconvenience of having to do it again.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to construct a new water heater with a hot water filling function or to perform a hot water filling function from an existing single hot water supply device. The purpose is to provide a hot water faucet unit that can be easily installed and installed by replacing it with the attached hot water supply equipment.

[0015]

In order to achieve the above object, the present invention is constructed as follows. That is, the first invention is a water filling plug unit connected to a hot water supply pipe for guiding hot water from a water heater, dropping it into a bathtub, and dropping it.
The water filling tap unit includes a connection portion connected to the hot water supply pipe, a hot water discharge passage extended and formed with the connection portion as a proximal end side, a water tap provided in the hot water discharge passage, and the water tap. Of the bypass passage communicating between the upstream side and the downstream side of the above, and the drop-in control valve which is provided in the bypass passage and is controlled to open / close by the signal of the hot water filling side of the water heater side are integrated. Is configured.

A second aspect of the present invention is a hot water plug unit connected to a hot water pipe for guiding hot water from a hot water supply device, dropping the hot water into a bath, and dropping the hot water into the bathtub. A connecting portion connected to the pipe, a dropping passage formed by branching and extending with respect to the hot water supply pipe with the connecting portion as a base end side, and a water filling controller on the water heater side provided in the dropping passage. It is characterized by being integrated with a drop-in control valve which is controlled to open and close by a signal.

[0017]

In the present invention having the above structure, an automatic filling system is formed by connecting the connection portion of the filling plug unit to the hot water supply pipe of the water heater. When performing automatic filling of the bathtub, open the drop control valve and drop the hot water produced by the combustion operation of the water heater from the hot water supply pipe into the bathtub through the bypass passage or the drop passage so that the amount of hot water (or water level) in the bathtub changes. When the predetermined value is reached, the drop control valve is closed and the automatic filling operation of the bathtub is completed.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first filling device unit according to the present invention.
Is shown with an automatic filling system. In the figure, the water heater 1 has an automatic hot water filling function similar to, for example, the device shown in FIG. 8 of the conventional example, and the flow sensor 14 for detecting the amount of water flowing through the equipment, the temperature of the incoming water or the outgoing hot water. A temperature sensor for detecting the temperature and other sensors, devices, and parts necessary for combustion operation are built in.

A controller 15 is arranged in the water heater 1, and a remote controller 8 is connected to the controller 15, and the controller 15 and the remote controller 8 constitute a water filling controller. A hot water supply pipe 3 is connected to the hot water supply pipe 2 of the water heater 1, and the characteristic water filling plug unit 52 of the present embodiment is connected to the tip end side of the hot water supply pipe 3. This hot water plug unit
52 has a connecting portion 41, from which the hot water passage
53 and the bypass passage 17 are branched and formed, and the hot water passage 53 is provided with a single faucet 5 as a faucet.

The tip end side of the bypass passage 17 is connected to the tap water passage 53 at the downstream side of the single faucet 5, and a drop solenoid valve 18 functioning as a drop control valve is provided in the bypass passage 17. Cage, this drop solenoid valve 18
The valve opening / closing drive is performed by a signal from the hot water filling control section of the controller 15 on the side of the water heater 1.

The hot water plug unit 52 is connected to the hot water supply pipe 3 at a connecting portion 41.
And the tip end side of the hot water passage 53 is arranged toward the inside of the bathtub 4.

FIG. 3 shows an example of a panel surface configuration of the remote controller 8. On the panel surface, if necessary, a hot water supply temperature setting unit 21, a hot water temperature setting unit 22 to drop into the bathtub 4, and a hot water amount to drop. A setting unit 23, a drop time setting unit 24, a timer setting unit 25 that sets the start of automatic filling by time or elapsed time, a water level setting unit 26 that sets the water level of the bath filling, and commands hot water supply operation. A hot water supply operation switch 27 for turning on and a hot water operation switch 28 for instructing the operation of automatic hot water filling are provided.

Each of the setting sections 21 to 25 has a button 30 for setting a numerical value and a display section 31 for displaying the set numerical value, and the water level setting section 26 is set as a button 32 for setting the water level. And a display unit 33 for displaying the water level by a picture or the like. The drop time set by the timer setting unit 25 means the time for setting how many hours after the setting operation by the timer setting unit 25 the start of the filling operation is started. The setting information set by the remote controller and the switch information of the switches 27 and 28 are added to the control device 15.

The control device 15 is constructed according to various specifications of the automatic filling operation, and a typical example of the configuration is shown in FIG. (A) of the figure is an example of a configuration for controlling the filling operation based on the amount of dropped hot water, and has a dropped hot water amount measuring unit 34, a dropping time measuring unit 35, and a safe dropping operation unit 36. Drop water amount measurement unit 34
Receives the water amount detection signal from the flow sensor 14 and integrates the amount of dropped water, and the dropped water amount setting unit 23 of the remote controller 8
Compared with the value set in, when the cumulative amount of hot water reaches the set amount of hot water, a closing drive signal is output to the drop solenoid valve 18 to shut off the drop solenoid valve 18.

The drop time measuring unit 35 receives the clock signal of the clock 19 provided inside the control device, measures the time from the start of the drop, and compares it with a predetermined reference time value for overflow prevention. The operation signal is dropped and added to the safe operation unit 36 when the measurement time reaches the reference time value. The drop safe operation unit 36 applies a closing drive signal to the drop solenoid valve 18 when the operation signal is applied, and shuts off the drop solenoid valve 18. The drop-in safety operation unit 36 has a function of preventing automatic hot filling from being continued while the hot water overflows from the bathtub 4.

The automatic filling operation using the circuit shown in FIG. 9A is performed as follows. The water filling operation switch 28 of the remote controller 8 is turned on, or the timer setting unit 25
At the time or time set in step 3, the drop solenoid valve 18 is opened, the water supplied to the water heater 1 is turned into hot water by the combustion heat of the burner, and the drop water temperature setting unit 22
The hot water of the temperature set in is hot water supply pipe 3 and bypass passage 17
It is dropped into the bathtub 4 through. During the filling of the hot water, the dropped hot water amount measuring unit 34 receives the hot water amount detection signal of the flow sensor 14 and integrates the dropped hot water amount. Then, when the integrated value reaches the set value set by the drop hot water amount setting unit 23 of the remote controller 8, a closing drive signal is applied to the drop solenoid valve 18 to close the drop solenoid valve 18 to end the filling operation.

If the closing drive signal is not output to the dropping solenoid valve 18 even if the integrated value of the amount of dropping hot water reaches the set value for some reason, the filling operation continues, but at this time, the dropping time is measured. The section 35 receives the clock signal from the clock 19 and measures the time from the start of the automatic water filling. When the predetermined time has elapsed, the drop safe operation section 36 drops the solenoid valve.
Since the closing drive signal is applied to 18 and the solenoid valve 18 is closed, the problem that hot water is left overflowing from the bathtub 4 can be prevented.

FIG. 2B shows a structure in which the water filling operation is controlled by time. After the water filling operation is started, the drop time measuring unit 35 receives a clock signal from the clock 19 to adjust the water filling time. It is determined that when the time set by the drop time setting unit 24 of the remote controller 8 is reached, the amount of hot water required for filling is dropped, and a drop drive signal is output to the drop solenoid valve 18 to drop the water. The solenoid valve 18 is closed and the filling operation is finished. On the other hand, the pouring hot water amount measuring unit 34 integrates the pouring hot water amount in response to the signal from the flow sensor 14, and drops the operation signal when the integrated value reaches a predetermined reference value for preventing overflow, and the safe operation unit 36. In addition, the drop solenoid valve 18 is driven to be closed by the closing drive signal of the drop safe operation unit 36 to prevent the hot water from being left overflowing from the bathtub 4.

FIG. 2C shows the water level setting section of the remote controller 8.
26 shows an example of a configuration in which the water filling operation is performed by setting the water level in 26. After the water filling operation is started, the time / hot water amount measuring unit 38 receives a signal from the flow sensor 14 to integrate the dropped hot water amount and the clock 19 of the clock 19. It receives the clock signal and measures the time from the start of filling. On the other hand, the calculation unit 37
Is a water level set by the remote controller 8 and calculates the amount of hot water required for filling and the required time based on information such as the size of the bathtub given in advance. The data of the measured value of the amount of dropped hot water measured by the amount of hot water dropped is measured, and the calculated values of the amount of dropped hot water corresponding to the water level setting and the required time are automatically corrected.

The time / hot water amount measuring unit 38 compares the amount of dropped hot water corresponding to the water level setting corrected by the calculation unit 37 with the integrated value of the measured amount of dropped hot water, and the pouring amount corrected by the operation unit 37 is calculated. Of the pouring hot water amount and the measured pouring hot water amount and time are corrected for the pouring hot water amount by the correction calculation and the value for the water level setting of the dropping time When the calculated value is reached, a closing drive signal is dropped from the time / hot water amount measuring unit 38 and added to the solenoid valve 18, the solenoid valve 18 is closed, and the water filling operation is completed. The drop safe operation unit 36
When one or both of the values measured by the hot water amount measuring unit 38 reaches a predetermined reference value for overflow prevention, a drop drive signal is output to the drop solenoid valve 18 to close the solenoid valve 18, and the bathtub 4 is closed. Prevent the hot water from being left over.

As described above, the controller 15 employs a circuit having a water filling function according to the specification mode. The panel structure of the remote controller 8 shown in FIG. 3 is as shown in FIG.
Although it is shown as a configuration that can be applied to both the control modes of (b) and (c), when the filling operation is performed based on the amount of pouring hot water as shown in FIG. The part 24 can be omitted,
Further, as shown in FIG. 2B, in the case of a configuration in which the water filling operation is controlled based on the pouring time, the pouring hot water amount setting unit 23 can be omitted, and an unnecessary component depending on the control mode. Can be omitted.

According to the present embodiment, the automatic water filling system can be constructed by the piping work only by connecting the water filling plug unit 52 to the front end side of the hot water supply pipe 3.
Since it is not necessary to provide the water filling pipe 10 for exclusive use of water filling as shown in (1), the installation work is very easy.

Further, the solenoid valve for dropping the bypass passage 17
Since the water filling operation is controlled by opening and closing 18, when the hot water of the water heater 1 is used in the kitchen during the water filling operation, the drop solenoid valve 18 is closed and the hot water is closed. Even if the tensioning operation is stopped, the hot water of the water heater 1 can be used as it is in the kitchen without stopping, which is very convenient in terms of usability.

Furthermore, without using the tap (single tap) 5,
That is, since the water filling operation can be performed with the hot water tap 5 closed, the sequence program of the water filling operation after confirming that the hot water tap 5 is closed, as in the conventional apparatus shown in FIG. Need not be reset, and the sequence program can be reset using the remote controller 8 without having to go to the bathroom to check that the tap 5 is closed. Also, at the start of the filling operation, the solenoid valve is turned on by a signal from the filling controller of the water heater 1.
18 is opened, and the hot water can be dropped into the bathtub 4 immediately. When using a conventional water shutoff valve with a control counter, there is the trouble of having to go to the bathroom and set the water counter again when filling water. By using it, such troublesomeness can be eliminated.

Further, when it is desired to replace the water heater having a hot water filling function with a hot water supply device having a hot water filling device which does not have a water filling function, the pipe connected from the hot water supplying pot to the bathtub must be replaced. It can be used as it is as the hot water supply pipe 3,
An automatic water filling system will be formed by simply attaching the water filling plug unit 52 to the existing piping and connecting the electric wiring from the drop solenoid valve 18 to the control device 15, and will make a hole in the bathroom wall or the bathroom floor. It becomes possible to easily construct a water heater with a hot water filling function and its system of this embodiment in an apartment house or the like that does not require difficult work of drawing pipes on the surface,
The cost is also very cheap.

FIG. 4 shows a second embodiment of the water filling plug unit according to the present invention together with an automatic water filling system. The water filling plug unit 52 of this embodiment is branched and connected to the hot water supply pipe 3 in which the hot water discharge tap (single water faucet) 5 is disposed on the tip side. Part 41,
One in which the drop passage 40 branched from the hot water supply pipe 3 with the connecting portion 41 side as the base end side and the drop solenoid valve 18 as the drop control valve provided in the drop passage 40 are integrated and integrated. The tip end side of the drop passage 40 is arranged toward the inside of the bathtub 4. The drop solenoid valve 18 and the controller 15 of the water heater 1 are connected by an electric wiring material.

Also in this embodiment, since the automatic hot water filling system for the water heater can be constructed by simply connecting the hot water supply pipe 3 to the hot water filling plug unit 52, the installation of the hot water pipe becomes extremely easy. It is possible to obtain the same effect as that of the above embodiment.

5 and 6 show another embodiment of the present invention. Hot-water stopper unit 52 shown in FIG.
Corresponds to the water filling plug unit shown in FIG. 1 of the first embodiment, and this water filling plug unit 52 is capable of closing the single faucet 5 of the first embodiment. It is constructed by the same mixing faucet 43 as in a), and the shower 44 is attached to the passage on one side of the mixing faucet 43, and the other configurations are the same as those in the first embodiment.

The embodiment shown in FIG. 6 is a mixed faucet capable of closing the single faucet 5 shown in FIG. 4 of the second embodiment.
43, and a shower 44 is provided in the passage on one side of the mixing faucet 43, and the other structure is the same as that of the second embodiment.

The apparatus of the embodiments shown in FIGS. 5 and 6 also has a very simple piping configuration, and has the same effects as those of the first and second embodiments.

The present invention is not limited to the above-mentioned embodiments, and various embodiments can be adopted. For example, in the embodiment of FIGS. 4 and 6, the single faucet (drain tap) 5 and the mixed faucet 43 are excluded from the water filling stopper unit 52.
The portion surrounded by the number 54 including the single faucet 5 shown in FIG. 6 may be configured as a water filling plug unit, and the portion surrounded by the number 55 including the mixed water faucet 43 shown in FIG. May be configured as.

Although the automatic filling system of each embodiment is provided with the drop-in safety operation unit 36 as shown in FIG. 2, the drop-in safety operation unit 36 may be omitted. In this case, in the case of FIG.
The dropping time measuring unit 35 can also be omitted, and the dropping hot water amount measuring unit 34 can be omitted in the configuration of FIG. Further, the circuit of the water filling function is not limited to that of the present embodiment, and the water filling operation is performed by opening and closing the bypass solenoid valve 18 branched from the hot water tap 3 or the drop solenoid valve 18 provided in the drop passage 40. Any other circuit having a water filling function may be used as long as it performs the above.

Further, in each of the above embodiments, the drop control valve is constituted by a solenoid valve, but any other control valve may be used as long as it can control the opening and closing of the valve. Further, not only the opening and closing of the valve but also the opening and closing amount of the valve. It may be a valve capable of controlling

Further, in each of the above-described embodiments, the electric wiring material of the drop solenoid valve 18 is connected to the control device 15 side of the water heater 1 by wiring, but it may be connected to the remote controller 8 side.

[0045]

The hot-water tap unit of the present invention has a connecting portion for connecting the hot water of the water heater to the hot water supply pipe which is dropped and dropped into the bathtub. In the first invention, from this connecting portion In the second invention, a tap passage having a faucet is stretched, and a bypass passage communicating between the upstream side and the downstream side of the tap of the tap passage is provided. In the second invention, the drop passage is stretched from the connecting portion. Since the drop control valve is provided in the bypass passage or the drop passage, automatic filling can be performed by controlling the opening / closing of the drop control valve according to a signal from the hot water filling controller on the water heater side. Moreover, since the automatic water filling operation is performed by opening and closing the drop control valve of this water filling plug unit, when the hot water of the water heater is used in the kitchen during the automatic water filling operation,
Even when the dropping control valve is closed and the automatic filling is finished, the hot water used in the kitchen or the like can be continuously used without being shut off.

In addition, after resetting the automatic filling operation, when the sequence program of the automatic filling controller is reset by a remote controller or the like, it is necessary to confirm that the tap is closed as in the conventional example. It is not necessary to go to the bathroom, and the reset operation can be performed immediately by operating the remote control, which is very convenient. In addition, if you connect a faucet unit equipped with a water stop valve with a water counter of the conventional example to the tip of the hot water supply pipe, go to the bathroom one by one and set the water counter at the start of the next filling of water. Although there is the inconvenience of having to fix it, the water filling stopper unit of the present invention does not have such an inconvenience, and automatic water filling is possible by simply operating the water filling start switch of the remote controller.

In addition, when an automatic water filling system is installed and constructed using the water filling plug unit of the present invention, the conventional FIG.
There is no need to separately provide a dedicated water filling pipe as shown in
Further, even when replacing the existing hot water supply single-function device without a water filling function with the device having a water filling function of the present invention, the pipe line that is piped from the existing water heater to the bathtub is used as it is as a hot water supply pipe, Since it is only necessary to connect the water filling plug unit of the present invention to the pipe line, it is possible to easily build an automatic water filling system even in households where it is extremely difficult to add piping such as apartment houses, and the installation work can be done. It is possible to exert an excellent effect that it is very cheap.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of a water filling plug unit of the present invention together with an automatic water filling system.

FIG. 2 is various block diagrams showing a main part configuration of a control part of the water heater according to the present embodiment.

FIG. 3 is an explanatory diagram showing a configuration example of a panel surface of a remote controller used in the device of this embodiment.

FIG. 4 is a configuration diagram showing a second embodiment of the water filling plug unit of the present invention together with an automatic water filling system.

FIG. 5 is a configuration diagram showing a water filling plug unit of another embodiment of the present invention together with an automatic water filling system.

FIG. 6 is a system configuration diagram of still another embodiment of the present invention.

FIG. 7 is an explanatory diagram of a conventional automatic water filling system device.

FIG. 8 is an explanatory view of another conventional automatic water filling system device.

FIG. 9 is various explanatory views of a conventional faucet unit.

[Explanation of symbols]

 1 Hot water supply device 3 Hot water supply pipe 5 Hot water tap 8 Remote control 15 Control device 17 Bypass passage 18 Drop solenoid valve 40 Drop passage 52 Hot water plug unit

Claims (2)

[Claims] 1. A water filling plug unit connected to a hot water pipe for guiding hot water from a water heater to drop it into a bathtub, the hot water plug unit being connected to the hot water pipe. Section, a hot water outlet passage extended and formed with the connecting portion as a base end side, a faucet provided in the hot water outlet passage, a bypass passage communicating between the upstream side and the downstream side of the water tap, and the bypass passage. A water filling stopper unit, which is integrated with a drop-in control valve which is interposed in the water heater and which is controlled to open and close by a signal from a water filling side water filling control unit. 2. A hot water plug unit connected to a hot water pipe for guiding hot water from a hot water supply device and dropping the hot water into a bathtub, the hot water plug unit being connected to the hot water pipe. Section, a drop-in passage formed by branching with respect to the hot water supply pipe with this connecting portion as a base end side, and an opening / closing control according to a signal from a hot-water supply side water-filling control section provided in the drop-in passage. A water filling plug unit characterized by being integrated with a drop control valve.