JP3395685B2 - Laundry pouring unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laundry pouring unit for supplying residual hot water in a bath, hot water from a water heater, water or the like to a fully automatic washing machine by using a bath circulation heating / hot water supply device.

[0002]

2. Description of the Related Art Conventionally, the remaining hot water in a bath or hot water from a water heater is supplied to a fully automatic washing machine, and the operating state of the fully automatic washing machine is determined from the state of water flow in a water supply path. It is known to supply residual hot water from a bath or hot water or water from a water heater according to its operating state. For example, Japanese Patent Laid-Open No. 5-115
What is described in Japanese Patent No. 679 is a time when a running water sensor is provided in a water supply path to an opening / closing valve controlled by a fully automatic washing machine, and after the operation in the washing mode is started, the running water sensor does not continuously detect running water. This mode is maintained until the time exceeds the set time, and both the heating selection means for selecting heating / non-heating and the water supply selection means for selecting either tap water supply means or bath water supply means are operable. At the same time, when the set time is exceeded, the mode shifts to the rinse mode, and the water supply selection unit is forced to select the tap water supply unit so that only the heating selection unit can be operated.

[0003]

However, in the above-mentioned conventional pouring and pouring apparatus for a washing machine, after setting the washing mode and the rinsing mode, the start switch (standby switch in the above publication) is set. Although it is to put in and start the operation of the fully automatic washing machine, recent fully automatic washing machines have a reserved operation function, and when this reserved operation is set, the fully automatic washing machine will be operated until the set time. The machine does not operate, and the solenoid valve in the water supply path remains closed, so it enters the standby state. At this time, if the residual hot water wash is selected, the pump provided in the bath water heater of the bath water supply means remains in operation, and there were problems such as noise, durability of the pump, and waste of electric power. . Also, for hot water pouring and pouring equipment for washing machines that do not have a hot and cold water mixing valve, when the hot water washing mode is selected, and when the fully automatic washing machine is in reserved operation, when the hot water washing mode is selected and the start switch is turned on. , It is necessary to set the hot water supply set temperature of the water heater to the set temperature for pouring hot water in the washing machine (for example, 40 ° C) and prohibit the change of the hot water supply set temperature until the washing mode ends (clothes will be damaged if heated to a high temperature) Therefore, there is a problem that the desired temperature cannot be set when using other hot water supply until the fully automatic washing machine starts operating.

An object of the present invention is to provide a method for controlling a washing and pouring unit which prevents the pump from continuously operating for a long time and does not restrict the hot water supply set temperature when washing in the hot water washing mode. .

[0005]

[Means for Solving the Problems] To achieve the above object
Washing pouring unit of the present invention of claim 1, wherein, bath循
Bath equipped with ring heat exchanger, hot water supply heat exchanger and circulation pump
A water heater and means for supplying tap water to the washing machine with or without heating, and means for supplying residual hot water in the bathtub to the washing machine with or without heating. in laundry pouring circuit with bets, water injection solenoid valve and a three-way valve and Notes
It has a hot water pipe and a filter chamber, and is equipped with a filter at the pouring side outlet of the three-way valve.
The filter chamber is connected to the filter chamber, and the pouring pipe is connected to the filter chamber.
The pouring pipe is in communication with the washing machine, and the pouring solenoid valve is the water supply pipe.
And between the filter chamber and the washing machine by a pipe
It is connected to the pouring pipe with, and the water pouring solenoid valve is opened to put water into the washing machine.
Can be supplied and a pressure relief valve in the filter chamber
Installed, the three-way valve has a switching state of a, b, c
The switching state a of the three-way valve must drive the circulation pump.
Allows the hot and cold water in the bathtub to circulate through the bath circulation heat exchanger.
The three-way valve switching state b
By driving, the remaining hot water in the bathtub is washed from the pouring pipe.
Is supplied to the machine and is further contained in the pipeline.
Circulating pressure by rotating the three-way valve to the switching state c
Can be released to the circuit side, and after opening the water injection solenoid valve
The water injection solenoid valve is closed and the three-way valve is once switched.
Laundry pouring characterized by performing pressure relief operation by rotating to
It is a hot water unit. The laundry of the present invention according to claim 2
The pouring unit consists of a bath circulation heat exchanger, hot water supply heat exchanger, and
Connected to the washing machine and bath water heater with circulation pump
Supplied to the washing machine with or without heating tap water
To heat the remaining hot water in the bathtub or without heating
Smell in the wash pouring circuit with means to supply to the washing machine
Equipped with a solenoid valve for pouring water, a three-way valve, a pouring pipe and a filter chamber.
The three-way valve's water inlet is connected to the bath inflow circuit of the bath circulation circuit.
The bath outlet of the bath circulation circuit at the bath side outlet of the three-way valve
Is connected, and the filter chamber communicates with the pouring side outlet of the three-way valve.
The pouring pipe is connected to the filter chamber and the pouring pipe is washed.
The water injection solenoid valve, which is connected to the machine, supplies the tap water.
Pouring in the downstream of the filter chamber by a pipe
Connected to the pipe, open the water injection solenoid valve to supply water to the washing machine
Pressure relief valve can be installed in the filter chamber
The three-way valve has a switching state of a, b, c
The switching state a of the valve can be changed by driving the circulation pump.
What circulates the hot and cold water in the bathtub through the bath circulation heat exchanger
And the switching state b of the three-way valve drives the circulation pump.
This allows the remaining hot water in the bathtub to be supplied to the washing machine from the pouring pipe.
And the pressure contained in the pipeline.
By rotating the three-way valve to the switching state c to the bath circulation circuit side
Can be released to the above, after opening the water injection solenoid valve
Close the water injection solenoid valve and temporarily turn the three-way valve to the switching state c.
Washing pouring uni characterized by performing pressure relief operation
It is. Furthermore, the washing pouring of the present invention according to claim 3
The unit has a bath inflow pipe and a communication pipe, and the remaining hot water in the bathtub
From the bath entrance pipe through the filter chamber to the pouring pipe through the washing machine
And the pressure relief valve is connected to the bath inflow pipe by the communication pipe.
According to claim 1 or claim 2, characterized in that
This is the laundry pouring unit.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. Referring to FIG. 11, a schematic configuration of a water heater and hot water supply apparatus including a laundry pouring unit to which the present invention is applied will be described.
The bath water heater 1 includes a bath circulation heat exchanger 2 and a hot water heat exchanger 3 and is heated by a heat source (not shown). A bath inflow pipe 5 and a bath return pipe 6 are connected to the bath circulation heat exchanger 2, a circulation pump 7 is provided in the bath return pipe 6 having the other end communicating with the bathtub 4, and the bath inflow pipe 5 is washed. It is introduced into the pouring unit 8 and is connected to the water inlet 91 of the three-way valve 9, the bath outlet pipe 51 is connected to the bath side outlet 92 of the three-way valve 9, and the other end of the bath outlet pipe 51 is at the bathtub 4 Is in communication with.
Further, a hot water supply pipe 31 for supplying cold water (tap water) to the hot water supply heat exchanger 3 and a hot water supply pipe 32 for sending heated hot water to a predetermined hot water supply place are connected to the hot water supply heat exchanger 3.

In the washing pouring unit 8, a filter chamber 1 having a filter 101 at the pouring side outlet 93 of the three-way valve 9.
0 is communicated, and the water flow switch 12 is connected to the filter chamber 10.
Is connected, the communication pipe 13 is connected to the bath inflow pipe 5 via the pressure relief valve 14, and the drain pipe 15 having the water drain plug 151 is connected. The pouring pipe 11 is connected to the washing machine 27 via the faucet 26, one end of the hot water supply pipe 16 is connected between the filter chamber 10 and the water flow switch 12, and the other end of the hot water supply pipe 16 is connected in series. Is connected to the pouring solenoid valve 19 and the pouring solenoid valve 20 via the check valves 17 and 18 arranged in the hot water supply pipe, and the pouring solenoid valve 19 has a hot water supply branched from the hot water supply pipe 32 of the hot water supply heat exchanger 3. The branch pipe 23 is connected via the backflow resistance valve 21,
A water supply branch pipe 24, which is branched from a water supply pipe 31 and has a filter 25, is connected to the water injection solenoid valve 20 via a water governor 22.

Referring to FIG. 12, the switching state of the three-way valve 9 will be described. The rotation position of the valve body 90 rotated by the motor 9A is detected by a limiter switch (not shown).
(A) is a circulation position (for example, a rotation angle of 0 degree), and the water inlet 9
1 and the bath side outlet 92, that is, the bath entrance pipe 5 and the bath exit pipe 5
1 is communicated with each other and the circulating pump 7 is driven to heat the hot water in the bathtub 4 from the bath return pipe 6 through the bath circulation heat exchanger 2 to the bath entrance pipe 5, the three-way valve 9, and the bath exit pipe. 5
Circulate from 1 and heat. (B) is a residual hot water pouring position (for example, a turning angle of 180 degrees), and the pouring pipe 11 is communicated with the pouring water inlet 91 and the pouring side outlet 93, that is, the bath inflow pipe 5 and the filter chamber 10. By driving the circulation pump 7, the residual hot water in the bathtub 4 is passed through the bath return pipe 6, the bath circulation heat exchanger 2, the bath inflow pipe 5, the three-way valve 9, and the pouring pipe 11 through the faucet 26. Water is poured into the washing machine 27. At this time, it is heated by a heat source (not shown) if necessary. (C)
At the backwash position (for example, a rotation angle of 90 degrees),
And the bath side outlet 92 and the pouring side outlet 93, that is, the bath going-in pipe 5 and the bath going-out pipe 51 and the pouring pipe 11 are communicated with each other, and the bath feeding pipe 24, the pouring pipe 11 and the filter chamber 10 are used for bathing. By supplying water to the inlet pipe 5 and the bath outlet pipe 51, the filter 101 in the filter chamber 10 is washed.

Referring to FIG. 13, an example of the remote controller of the laundry pouring unit 8 will be described. The remote controller 33 includes the operation switch 34 and the operation switch lamp 341, the start switch 35 and the start switch lamp 351, and the inside of the bathtub 4. A selection switch 36 for selecting one of the remaining hot water washing courses using the remaining hot water, the hot water washing course using the hot water from the hot water heat exchanger 3 and the cold water washing course, and the selected pouring course. A display unit 37 having a pouring course lamp 371 for displaying a hot water course and a water rinsing course is provided.

The operation will be described below.
When you turn on 4, the power is turned on and the operation switch / lamp 3
41 lights up. When the pouring course is selected by pressing the selection switch 36, the pouring course lamp 371 corresponding to the selected pouring course is lit, and when the start switch 35 is pressed thereafter, washing is performed in the selected pouring course, and then It moves to water rinsing. When the residual hot water washing course is selected in the selection of the pouring course, the three-way valve 9 is rotated to the residual pouring position (see FIG. 12b), the circulation pump 7 is operated, and the pouring solenoid valve 19 and the pouring solenoid are operated. Valve 20
Keeps the closed state, so that the residual hot water in the bathtub 4 is poured from the bath entrance pipe 5 through the filter chamber 10
Supply to the washing machine 27.

If the washing machine 27 is set to the reserved operation when the residual hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses, and water is not injected. 12 is off. When the water flow switch 12 remains off for a predetermined time, that is, when there is no water flow in the pouring pipe 11 for a predetermined time, the three-way valve 9 is rotated to the circulation position (FIG. 12a) to stop the circulation pump 7 and inject water. Open the solenoid valve 20 and connect the water supply branch pipe 24 to the pouring pipe 1
Stand by in the state of the water washing course to communicate with 1. With this configuration, unnecessary continuous operation of the circulation pump 7 can be prevented.

When the reserved time has passed and a water flow is generated in the pouring pipe 11 and the water flow switch 12 is turned on, the previously selected residual hot water washing operation is restored, and the three-way valve 9 sets the residual hot water pouring position. (See FIG. 12b), the circulation pump 7 is restarted, and the water injection solenoid valve 20 is closed. At this time, since the water governor 22 is provided to limit the water flow rate, the water supply branch pipe 24 reduces the water hammer generated when the water injection solenoid valve 20 is closed from the water flow state.

When the residual hot water wash is completed, the circulation pump 7 is stopped and the three-way valve 9 is rotated to the backwash position (FIG. 12c).
The water pouring electromagnetic valve 20 is opened, cold water is supplied from the pouring pipe 11 to the filter chamber 10, and the filter 101 is washed (filter backwash) to finish the residual hot water washing process, and then the three-way valve 9 is circulated to the circulating position (Fig. 12a) and shifts to the water rinsing stroke.

When the hot water washing course is selected, the hot water supply set temperature T _S of the hot water supply heat exchanger 3 of the bath water heater 1 is changed to the wash pouring set temperature T _SW (for example, when T _S > 40 ° C.). Is T _SW = 40 ° C., and when T _S ≦ 40 ° C., T _SW =
T _S ), the pouring electromagnetic valve 19 is opened while the three-way valve 9 is held at the circulation position (FIG. 12 a), and the pouring pipe 11 pulls the washing machine 2
Supply hot water to 7. After the completion of washing with hot water, the pouring electromagnetic valve 19 is closed and the process goes to the water rinsing course.

If the washing machine 27 is set to the reserved operation when the hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses and water is not injected, so the water flow switch 12 Is off. When the water flow switch 12 remains off for a predetermined time, that is, when there is no water flow in the pouring pipe 11 for a predetermined time, the pouring solenoid valve 19
Is closed, the water injection solenoid valve 20 is opened, the hot water supply set temperature T _S of the hot water supply heat exchanger 3 is returned to the original value, and then the water supply branch pipe 24 is brought into communication with the hot water supply pipe 11 to stand by in the washing process.

With this configuration, a hot water washing course is selected,
When the washing machine 27 is set to the reserved operation, the hot water supply set temperature T _S can be arbitrarily set until the reserved time elapses. When the water flow is generated in the pouring pipe 11 and the water flow switch 12 is turned on after the reserved time has elapsed, the hot water supply set temperature T _S is changed to the wash pouring set temperature T _SW and the water pouring solenoid valve 20 is closed. Open the pouring solenoid valve 19 to open the pouring pipe 11
Then, hot water is supplied to the washing machine 27 to start washing with hot water.

When the water washing course is selected, the water injection solenoid valve 2
0 is opened, the water flow switch 12 is turned on, that is, it is confirmed that there is a water flow in the pouring pipe 11, and water is injected from the water supply branch pipe 24 into the washing machine 27. When water is injected, a predetermined time ( For example, if the water flow switch 12 is kept off for 3 minutes, the water rinsing process is determined to have been completed and the water rinsing process is started. A predetermined time (for example, 2 hours) after the water flow switch 12 has been turned on for a predetermined time (for example, 18 hours) or after the water flow switch 12 has not been turned on for a predetermined time (3 minutes). When the time has elapsed, the water rinsing process is omitted and the water injection solenoid valve 20 is closed to end the water injection operation.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the control operation of the present invention is shown in FIGS.
This will be described with reference to the flowchart in FIG. In FIG.
When the operation switch 34 is turned on, the operation lamp 341 is turned on and the pouring course lamp 371 is turned on. The pouring course lamp 371 to be turned on is predetermined, and in this embodiment, the indicator lamp of the remaining hot water course is turned on first. Select the remaining hot water washing course and start switch 3
When the switch 5 is turned on, the start switch lamp 351 is turned on, an initial state check is performed, the process shifts to the residual hot water washing process, and the residual hot water in the bathtub 4 is supplied to the washing machine 27. After the remaining hot water washing process, the filter backwashing process is performed, and the filter 10
1. After washing the filter 101 by passing water from the reverse direction to 1, the water rinsing process is performed to perform the water rinsing, and after the completion, the water injection solenoid valve 20 is closed and the three-way valve 9 is once in the backwash position (FIG. 12).
After turning to (c), turning to the circulation position (Fig. 12a) to stop, and after waiting time t (for example, 1 hour) elapses, the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off. Then the washing is finished.

When the hot water washing course is selected and the start switch 35 is turned on, the start switch lamp 351 is turned on, the initial state is checked, and then the hot water washing process is started. Hot water from the hot water supply device 1 is supplied to the washing machine 27. After the washing with hot water, the process proceeds to the water rinsing step, as in the case of finishing the residual hot water washing course, and the washing is finished after the rinsing with water. When the water washing course is selected and the start switch 35 is turned on, the start switch lamp 351 is turned on, the initial state check is performed, and then the water washing process is started, the water injection solenoid valve 20 is opened, and water from the water supply branch pipe 24 is opened. Is supplied to the washing machine 27. After washing with water,
As in the case of finishing the residual hot water washing course, the process moves to the water rinsing step, and after the water rinsing, the washing is finished.

Referring to FIG. 2, the initial state check will be described. The water flow switch 12 is off, that is, the pouring pipe 1
After confirming that there is no water flow in 1, the three-way valve 9 is confirmed to be in the circulation position (Fig. 12a) by the limiter switch of the three-way valve 9, and the initial state check is completed. Now, the water flow switch 12 is on, that is, the pouring pipe 11
If there is a signal that water is flowing through, the first initial time t
Water flow switch 12 after _F1 (for example, 25 seconds)
When is turned on, the operation lamp 341 blinks one point (lighting and extinguishing are alternately repeated once at a constant rhythm) and an alarm is issued. Further, when the signal indicating that the three-way valve 9 is not in the circulation position (Fig. 12a) is output, the three-way valve 9 is in the circulation position (Fig. 12a) even after the second initial time t _F2 (for example, 25 seconds) has elapsed. If it is not confirmed, the operation lamp 341 blinks at two points (lighting is repeated twice every two times with one long extinction) and an alarm is issued. After confirming the alarm that the operation lamp 341 blinks one point or two points, the operation switch 34 is turned off, and the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off, and then the above-mentioned state is caused. After removing the cause, restart.

The remaining hot water washing process will be described with reference to FIG.
After driving the circulation pump 7 and turning the three-way valve 9 to the residual hot water pouring position (Fig. 12b), it is confirmed that the three-way valve 9 is at the residual hot water pouring position (Fig. 12b).
2 is turned on, that is, after confirming that there is water flowing through the pouring pipe 11, the pouring electromagnetic valve 19 and the pouring electromagnetic valve 20 are kept closed and the remaining hot water in the bathtub 4 is bathed. Washing machine 2 from inflow pipe 5 through filter chamber 10 to pouring pipe 11
Supply to 7. The water flow switch 12 has a predetermined time (for example,
The residual hot water is continuously supplied until it is continuously turned off for 3 minutes), and when the water flow switch 12 is continuously turned off for a predetermined time (3 minutes), it is assumed that the residual hot water washing process is finished, which will be described later. Move to filter backwash process.

However, the third initial time t _F3 (for example,
Even after 25 seconds have elapsed, the three-way valve 9 is set at the residual hot water pouring position (Fig.
If it is not in 2b), the circulation pump 7 is turned off, the alarm that the operation lamp 341 blinks at two points is confirmed, the operation switch 34 is turned off, and the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned on. After turning off the light, remove the cause that caused the above condition, and then restart.

When the washing machine 27 is set to the reserved operation when the residual hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses, water is not injected, and the water flow switch is set. Since 12 is off, even if the three-way valve 9 is in the residual hot water pouring position (FIG. 12b), the first waiting time t _W1 (for example,
Water flow switch 12 does not turn on after 5 minutes),
That is, when the water flow in the pouring pipe 11 is not detected, the three-way valve 9 is rotated to the circulation position (Fig. 12a), the circulation pump 7 is stopped, the pouring electromagnetic valve 20 is opened, and the water is washed. stand by. After waiting in the state of washing with water, the third waiting time t
_{When the} water flow switch 12 is turned on by the time _W3 (for example, 18 hours) elapses, that is, when the water flow in the pouring pipe 11 is detected, the reserved time of the washing machine 27 elapses and washing is started. It is determined that the water has poured, the water injection solenoid valve 20 is closed, the circulation pump 7 is started, and the three-way valve 9 is set to the residual hot water injection position (Fig. 12b).
Then, the residual hot water in the bathtub 4 is supplied from the bath entrance pipe 5 through the filter chamber 10 to the washing machine 27 through the pouring pipe 11.

On the other hand, when the water flow switch 12 does not turn on even after the lapse of the third waiting time t _W3 (18 hours), that is, when water flow in the pouring pipe 11 is not detected, the pouring solenoid valve 2
0 is closed, the three-way valve 9 is once rotated to the backwash position (FIG. 12c) to perform the pressure relief operation, and then the circulation position (FIG. 12a).
After the waiting time t (1 hour) has elapsed, the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off and the washing is completed. By this pressure release operation, when the washing machine 27 finishes the water rinsing operation and closes the water injection solenoid valve 20, the solenoid valve (not shown) in the washing machine 27 is connected between the check valve 18 and the three-way valve 9. The pressure (greater than the water supply pressure due to the water hammer by closing the solenoid valve in the washing machine 27) contained in the pipeline is once turned by rotating the three-way valve 9 to the backwash position (Fig. 12c). Therefore, the packing around the valve body 90 of the three-way valve 9 can be prevented from being deformed or deteriorated, and the durability of the three-way valve 9 can be enhanced. The filter chamber 10
In addition, the communication pipe 13 is connected to the bath access pipe 5 via the pressure relief valve 14.
By reducing the pressure contained in the three-way valve 9 is reduced to a certain level or less, it is possible to prevent the load of the drive motor of the three-way valve 9 from becoming excessive due to the contained pressure being too high. The packing around the valve body 90 can be prevented from being damaged.

Further, while the water flow switch 12 is on,
When the second waiting time t _W2 (for example, 30 minutes) has elapsed, the three-way valve 9 is turned to the circulation position (FIG. 12a) to stop the circulation pump 7, and then the three-way valve 9 is once moved to the backwash position. After turning to (FIG. 12c) and turning to the circulation position (FIG. 12a) to stop, after the waiting time t (1 hour) elapses, the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off. Then the washing is finished.

Referring to the filter backwashing process in FIG. 4, the three-way valve 9 is rotated to the circulation position (FIG. 12a), and after confirming that it is in the circulation position (FIG. 12a), the circulation pump 7 is stopped. , The water injection solenoid valve 20 is opened, and the three-way valve 9 is rotated to the backwash position (FIG. 12c) to inject the water injection solenoid valve 20.
Is opened, cold water is supplied from the pouring pipe 11 to the filter chamber 10 to wash the filter 101 (filter backwash), and then the three-way valve 9 is rotated to the circulation position (FIG. 12a) to shift to the water rinsing stroke. To do.

When the filter backwashing process is started, when the three-way valve 9 is first rotated to the circulation position (FIG. 12a), the fourth
If it cannot be confirmed that the circulation position (FIG. 12a) is reached even after the waiting time t _W4 (for example, 25 seconds) has elapsed, the circulation pump 7 is stopped and the operation lamp 341 is operated.
Is confirmed by blinking two points, the operation switch 34 is turned off, and the start switch lamp 351 and the operation lamp 3
After turning off 41 and the pouring course lamp 371, the cause that caused the above state is removed, and then restart is performed.

When the three-way valve 9 is rotated to the backwash position (FIG. 12c), the three-way valve 9 remains in the backwash position (FIG. 12c) even if the fifth waiting time t _W5 (for example, 25 seconds) elapses. ) Cannot be confirmed, the circulation pump 7 is stopped and the alarm in which the operation lamp 341 blinks at two points is confirmed, the operation switch 34 is turned off, and the start switch lamp 35
1. After turning off the operation lamp 341 and the pouring course lamp 371, the cause that caused the above state is removed, and then restart is performed.

The hot water washing process will be described with reference to FIG.
After checking the initial state, the hot water supply heat exchanger 3 of the bath water heater 1
Set the hot water supply set temperature T _S of the hot water supply to the wash pouring set temperature T _SW
(When T _S > 40 ° C., T _SW = 40 ° C., T _S ≦
When the temperature is 40 ° C., T _SW = T _S ), the priority lamp of the bathroom remote controller (not shown, hereinafter referred to as bathroom remote controller) is blinked to indicate that the hot water washing process has been started, and the three-way valve 9 is at the circulation position (Fig. Solenoid valve 1 for pouring while holding it at 12a)
9 is opened, and hot water is supplied from the hot water supply branch pipe 23 and the pouring pipe 11 to the washing machine 27.

Hot water supply is continued until the water flow switch 12 is continuously turned off for a predetermined time (3 minutes), and when the water flow switch 12 is continuously turned off for a predetermined time (3 minutes), the bath water heater The hot water discharge operation of No. 1 is stopped, the priority lamp of the bathroom remote control is returned to simple lighting, the hot water supply set temperature T _S is returned to the set value set by the bathroom remote control, and then the pouring electromagnetic valve 19 is closed and the pouring electromagnetic valve is closed. The valve 20 is opened to shift to the water rinsing stroke.

If the washing machine 27 is set to the reserved operation when the hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses, water is not injected, and the water flow switch 12 Since the water flow switch 12 remains off for the first waiting time t _W1 (5 minutes), that is, when there is no water flow in the pouring pipe 11 for the first waiting time t _W1 (5 minutes), The pouring electromagnetic valve 19 is closed and the pouring electromagnetic valve 20 is opened to confirm that the hot water supply of the bath water heater 1 is stopped, and the priority lamp of the bathroom remote controller is returned to a simple lighting so that it is not a normal washing step. It is indicated that hot water can be discharged, the hot water supply set temperature T _S is returned to the set value set by the bathroom remote controller, and the water supply branch pipe 24 is brought into communication with the hot water supply pipe 11 to stand by in the washing process.

When the water flow switch 12 is turned on before the third waiting time t _W3 (18 hours) elapses, that is, when water in the pouring pipe 11 is detected, the hot water supply set temperature T _S is set to the washing pouring temperature. Change temperature to T _SW (when T _S > 40 ° C, T _SW =
40 ℃, _T SW _{= T} S when the _{T S} ≦ 40 ° C.), bathroom remote controller (not shown, hereinafter referred bathroom remote control)
Blinking the priority lamp to indicate that the hot water washing process has been started, the pouring electromagnetic valve 20 is closed and the pouring electromagnetic valve 19 is opened, and the hot water branch pipe 23 and the hot water pouring pipe 11 are fed to the washing machine 27. Is supplied to wash the hot water, and the hot water is continuously supplied until the water flow switch 12 is continuously turned off for a predetermined time (3 minutes).

Further, when the water flow switch 12 does not turn on even after the lapse of the third waiting time t _W3 (18 hours), that is, when the water flow in the pouring pipe 11 is not detected, the pouring solenoid valve 2
0, the three-way valve 9 is once rotated to the backwash position (FIG. 12c) and then to the circulation position (FIG. 12a) to stop, and after the waiting time t (1 hour) elapses, the start switch lamp 3
51, the operation lamp 341, and the pouring course lamp 371 are turned off, and the washing is completed.

Further, the fourth waiting time t _W4 (for example, 1
When the water flow switch 12 does not turn off continuously for a predetermined time (3 minutes) even after 8 hours, the pouring electromagnetic valve 19 is closed and the three-way valve 9 is once set to the backwash position (FIG. 12c). After the rotation, the start switch lamp 3 is rotated to the circulation position (FIG. 12a) and stopped, and after the waiting time t (1 hour) elapses.
51, the operation lamp 341, and the pouring course lamp 371 are turned off, and the washing is completed.

The water washing process will be described with reference to FIG. 6. After the initial state check, the water injection solenoid valve 20 is opened, and water flow is continued until the water flow switch 12 is continuously turned off for a predetermined time (3 minutes). When it is confirmed that the switch 12 is continuously turned off for a predetermined time (3 minutes), the water rinsing process is started. After the initial state check, even if the water injection solenoid valve 20 is opened, when the water flow switch 12 remains off and the third waiting time t _W3 (18 hours) elapses, the water injection solenoid valve 20 is closed and the three-way valve 9 is temporarily reversed. After turning to the washing position (Fig. 12c), turning to the circulation position (Fig. 12a) and stopping it, after the waiting time t (1 hour) elapses, the start switch lamp 3
51, the operation lamp 341, and the pouring course lamp 371 are turned off, and the washing is completed. Further, if the water flow switch 12 does not turn off continuously for a predetermined time (3 minutes) even after the sixth standby time t _W6 (for example, 2 hours) continues after the water flow switch 12 is turned on, the water injection solenoid valve 20 is turned on. After closing, the three-way valve 9 is once rotated to the backwash position (Fig. 12c) and then to the circulation position (Fig. 12a) to stop, and after the waiting time t (1 hour) elapses, the start switch lamp 351. The operation lamp 341 and the pouring course lamp 371 are turned off, and the washing is completed.

The water rinsing process will be described with reference to FIG.
The filter backwashing process, the hot water washing process, or the water washing process in the residual hot water washing course is completed, and since the water injection solenoid valve 20 is opened, the washing machine 27 starts flowing water, and the water flow. When the switch 12 is turned on and the water flow is confirmed, the water flow switch 12 sets the time t ₀ (for example,
For 15 minutes) continuously off, that is, when there is no continuous flow of water in the pouring pipe 11 for a set time t ₀ (15 minutes), it is determined that the water rinsing process has ended, the pouring solenoid valve 20 is closed, and the three-way valve is closed. 9 is once rotated to the backwash position (FIG. 12c) to perform the pressure relief operation, and then is rotated to the circulation position (FIG. 12a) to be stopped, and after the waiting time t (1 hour) has elapsed, the start switch The lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off to complete the washing.

Immediately after shifting to the water rinsing process, the first set time t ₁ (for example, 18 hours) elapses without turning on the water flow switch 12, or the water flow switch 1
When the second set time t ₂ (for example, 2 hours) elapses while 2 is not continuously turned off for the set time t ₀ (15 minutes),
The water injection solenoid valve 20 is closed, the three-way valve 9 is once rotated to the backwash position (FIG. 12c) to perform the pressure relief operation, and then is rotated to the circulation position (FIG. 12a) to stop the standby time t. After (1 hour), the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off, and the washing is completed.

As described above, in the above embodiment, when the water rinsing stroke is completed, the water injection solenoid valve 20 is closed, and then the three-way valve 9 is once rotated to the backwash position (FIG. 12c) to perform the pressure relief operation. However, when the bath water heater 1 side is monitoring the water level of the bathtub 4 with the pressure sensor and performing the automatic operation, if the washing pouring unit 8 is installed at a position higher than the water level in the bathtub 4, When the three-way valve 9 is switched to the backwash position (FIG. 12c), the water in the washing pouring unit 8 flows out due to the difference in the head pressure, and the check valve 18 opens to suck air. Bath circulation circuit (bath circulation heat exchanger 2,
Since air is mixed in the bath inflow pipe 5, the bath return pipe 6 and the like), the pressure sensor that detects the pressure based on the bath water level via the bath circulation circuit may misidentify the water level in the bath 4. Therefore, the pressure relief operation is not executed during the operation of the bath water heater 1 using such a bath circulation circuit.

FIG. 8 shows the operation when the remaining hot water washing course is stopped midway. When the operation switch 34 is turned off, the start switch lamp 351, the pouring course lamp 371, and the operation lamp 341 are turned off, and the three-way operation is performed. The valve 9 is rotated to the circulation position (FIG. 12a) and stopped, and the circulation pump 7 is stopped and terminated.

FIG. 9 shows the operation when the hot water washing course is stopped midway. When the operation switch 34 is turned off, the start switch lamp 351, the pouring course lamp 371, and the operation lamp 341 are turned off, and the bathroom remote controller is turned on. It is shown that normal hot water can be discharged instead of the hot water washing process by returning the priority lamp of No. 3 to the simple lighting, and the hot water supply set temperature T _S
After returning to the set value set by the bathroom remote controller, the pouring solenoid valve 19 is closed and the three-way valve 9 is once in the backwash position (Fig. 12c).
Then, it is rotated to the circulation position (FIG. 12a) and stopped to end.

FIG. 10 shows the operation when the water washing course is stopped halfway. When the operation switch 34 is turned off, the start switch lamp 351, the pouring course lamp 371 and the operation lamp 341 are turned off, and the water injection solenoid valve. 20
Is closed, the three-way valve 9 is once rotated to the backwash position (FIG. 12c) and then to the circulation position (FIG. 12a) to stop and end.

[0042]

Since the present invention is constructed as described above, it has the following effects. When the remaining hot water washing course or the hot water washing course is selected and there is no water flow to the washing machine until the first waiting time elapses, the remaining hot water washing step for supplying the residual hot water or the hot water washing for supplying the hot water Interrupt the process,
When the remaining hot water washing course or hot water washing course is selected by opening the water injection solenoid valve and waiting for the water washing process to supply the washing machine without heating the tap water, and the washing machine is set for reserved operation In addition, unnecessary continuous operation of the circulation pump can be prevented until the reserved time elapses, and the hot water supply set temperature can be arbitrarily set. In addition, if you select the remaining hot water washing course or the hot water washing course and wait for the washing process, and water is flowing into the washing machine, the original remaining hot water washing process or By returning to the hot water washing process, when the washing machine is set for the reserved operation, the residual hot water washing course or the hot water washing course can be reliably started when the reserved time has elapsed.

[Brief description of drawings]

FIG. 1 is a flowchart showing the operation of a laundry pouring unit according to the present invention.

FIG. 2 is a flowchart showing an operation of initial state check.

FIG. 3 is a flowchart showing an operation of a residual hot water washing process.

FIG. 4 is a flowchart showing the operation of a filter backwash process.

FIG. 5 is a flowchart showing an operation of a hot water washing process.

FIG. 6 is a flowchart showing an operation of a water washing process.

FIG. 7 is a flowchart showing an operation of a water rinsing process.

FIG. 8 is a flowchart showing an operation at the end of the residual hot water washing course.

FIG. 9 is a flowchart showing an operation at the end of the hot water washing course.

FIG. 10 is a flowchart showing an operation at the end of the water washing course.

FIG. 11 is a schematic configuration diagram of a laundry pouring unit of the present invention.

FIG. 12 is an explanatory diagram of switching of the three-way valve of the laundry pouring unit.

FIG. 13 is a plan view of an operation surface of the remote controller.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-7-127908 (JP, A) JP-A-7-124383 (JP, A) JP-A-11-262598 (JP, A) JP-A-2000-24383 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06F 39/08 301 A47K 3/00 D06F 39/10 F24D 17/00 F24H 1/00 602

Claims (3)

(57) [Claims] 1. A bath circulation heat exchanger, hot water supply heat exchanger and circulation
Connected to a bath water heater with a ring pump and a washing machine,
In a washing pouring circuit provided with means for supplying tap water to the washing machine with or without heating, and means for supplying residual hot water in the bathtub to the washing machine without heating, note
It has a water solenoid valve, a three-way valve, a pouring pipe and a filter chamber.
The filter chamber is connected to the pouring side outlet of the valve,
The pouring pipe is connected, the pouring pipe is connected to the washing machine,
The water solenoid valve is in communication with the water supply pipe and is fitted with a pipe.
Is connected to the pouring pipe between the room and the washing machine,
Can be opened to supply water to the washing machine and also filter
A pressure relief valve is attached to the chamber, and the three-way valve is a, b,
The switching state a of the three-way valve is provided in the circulation pump.
The hot water in the bathtub is circulated in the bath by driving
It is circulated through a converter, and the switching state of the three-way valve b
Drives the circulation pump to remove the residual hot water in the bathtub.
Is supplied from the pouring pipe to the washing machine.
The pressure contained in the passage is switched to the state where the three-way valve is switched.
It can be released to the bath circulation circuit side by turning to
After opening the water solenoid valve, close the water injection solenoid valve and
A washing and pouring unit, wherein the valve is once rotated to a switching state c to perform a pressure relief operation . 2. Bath circulation heat exchanger and hot water supply heat exchanger and circulation
Connected to a bath water heater with a ring pump and a washing machine,
Supply tap water to the washing machine with or without heating
Means and the remaining hot water in the bath with or without heating
In the washing pouring circuit equipped with means for supplying to the machine,
It has a water solenoid valve, a three-way valve, a pouring pipe and a filter chamber.
The bath inlet / outlet pipe of the bath circulation circuit is connected to the inlet of the valve, and
The bath outlet pipe of the bath circulation circuit is connected to the bath-side outlet of the one-way valve.
The filter chamber is connected to the pouring side outlet of the three-way valve.
A pouring pipe is connected to the room, and the pouring pipe communicates with the washing machine.
The water injection solenoid valve communicates with the water supply pipe that supplies tap water.
And connected to the pouring pipe downstream of the filter chamber by a pipe
The water injection solenoid valve can be opened to supply water to the washing machine.
And a pressure relief valve is installed in the filter chamber,
The three-way valve has switching states of a, b, and c, and switches the three-way valve.
In the state a, by driving the circulation pump,
Hot water is circulated through a bath circulation heat exchanger,
The switching state b of the three-way valve is set by driving the circulation pump.
Wash the remaining hot water in the bathtub from the pouring pipe Supply to the machine
In addition, the pressure contained in the pipeline is
Rotate the one-way valve to the switching state c and let it escape to the bath circulation circuit side.
And the water injection solenoid valve after opening the water injection solenoid valve
Closed and the three-way valve once turned to the switching state c to release the pressure.
Laundry pouring unit characterized by performing opening and closing movements. 3. A bath entrance pipe and a communication pipe, which are provided in the bathtub.
Wash the hot water from the bath entrance pipe through the filter chamber and the pouring pipe.
Supplied to the machine, and the pressure relief valve is connected to the bath inflow pipe through the communication pipe.
It is made to pass, It is characterized by the above-mentioned.
Laundry pouring unit described.