JP2001162090A - Control method of washing water charging unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable operation of washing in a washing machine 6 without operation on the side of a washing water charging unit. SOLUTION: A water solenoid valve 41 provided in a water supply path 4 is held in an open valve state before operation of a washing water charging unit, and then the unit is operated. When a washing mode with remaining hot water in e.g. a bath tub or a hot water washing mode is implemented, the valve is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a washing water injection unit for injecting tap water, remaining hot water from a bath or hot water into a washing machine, and particularly to a water opening / closing unit provided in a tap water introducing passage for introducing tap water. It concerns valve control.

[0002]

2. Description of the Related Art The above-mentioned washing water injection unit is an apparatus for injecting hot water from a bath or hot water from a water heater in addition to tap water into a washing machine. The structure thereof is, for example, as shown in FIG.
The washing machine 6 includes a water flow pipe 1 serving as a means for injecting water into the washing machine 6, and an operation unit 9 for setting a remaining hot water washing mode, a hot water washing mode, or a water washing mode as a washing mode of the washing machine 6.
The water supply pipe 1 includes a remaining hot water introduction path 2 derived from a bath circulation path 5 between a bathtub 7 and a water heater 8, a hot water introduction path 3 derived from a hot water supply path 30 of the water heater 8, and a hot water supply 8. Tap water introduction channel 4 derived from the water supply channel 40 that supplies tap water
Are joined together.

[0003] The basic operation of the washing and watering unit follows the flowchart of FIG. 4 as disclosed in, for example, Japanese Patent Application Laid-Open No. 9-94378. That is, when the power switch is turned on and the remaining hot water washing mode is set by the operation unit 9 (S400, S401), the bath circulation path 5
Is driven to rotate the three-way valve 51 to the remaining hot water pouring position to inject the remaining hot water from the bath into the washing machine 6 (S4).
02 to S404). As a result, the remaining hot water is washed in the washing machine 6. When the OFF state of the water flow switch S of the water flow conduit 1 continues for a predetermined time (S405), it is considered that the washing process of the washing machine 6 has been completed, and the pump P is stopped to return the three-way valve 51 to the original circulation position. (S406, S40
7). Next, the water solenoid valve 41 of the tap water introduction passage 40 is opened (S408), and tap water is injected into the washing machine 6 (S40).
9) As a result, the rinsing step is performed in the washing machine 6. Thereafter, if the OFF state of the water flow switch S continues for a predetermined time (S410), it is considered that the rinsing step of the washing machine 6 has been completed, and the water solenoid valve 41 is held in the closed state (S411), and the washing water injection is performed. The operation of the unit ends.

When the hot water washing mode is set by the operation unit 9 (S500), the hot water supply temperature of the water heater 8 is set to a washing temperature (for example, 40 ° C.) and the hot water solenoid valve of the hot water introduction path 3 is set. 31 is opened and warm water is injected into the washing machine 6 (S5).
01 to S503). Thereby, the washing machine 6 performs hot water washing. When the OFF state of the water flow switch S continues for a predetermined time, the setting of the hot water supply temperature is released and the hot water solenoid valve 3 is released.
1 is closed (S504 to S506). Thereafter, the operations from step S408 to step S411 are performed, and the water solenoid valve 41 is finally held in the closed state. Further, when the water washing mode is set by the operation unit 9,
The water solenoid valve 41 of the tap water introduction passage 4 is opened and the washing machine 6 is opened.
Tap water is supplied to the washing machine 6 (S600, S601), whereby the washing machine 6 performs washing. When the OFF state of the water flow switch S continues for a predetermined time (S602),
Thereafter, the operations of steps S409 to S411 are performed, and the water solenoid valve 41 is finally held in the closed state.

[0005]

As described above, in the conventional washing and water injection unit, the introduction paths 2, 3, and 4 are all closed before the operation thereof, so that when the water is injected into the washing machine 6, The control is such that predetermined introduction paths 2, 3, and 4 are opened according to the washing mode set by the operation unit 9. Therefore, even when performing the most frequently performed water washing in the washing machine 6, in addition to the operation of the washing machine 6, it is necessary to operate the power switch and the mode setting switch on the washing water injection unit side. This switch operation is troublesome and inconvenient. The present invention provides a water supply pipe connected to a washing machine, a remaining hot water introduction path derived from a bath circulation path between a bathtub and a water heater, and a hot water introduction path derived from a water supply path of a water heater. And a tap water introduction path derived from a water supply path for supplying tap water to the water heater, and the remaining hot water, hot water, and tap water of the bath are separately poured into the washing machine from the outlet side of the water flow pipe. It is an object of the present invention to provide a method of controlling a washing and watering unit, in which a washing machine is not required to perform any operation on the washing and watering unit when washing with water.

[0006]

The technical means taken by the present invention to solve the above-mentioned problems are as follows. `` When the water on-off valve provided in the tap water introduction path is kept open when the washing water injection unit is not operated, and when the washing water injection unit is operated to perform the remaining hot water washing mode or the hot water washing mode, The water on-off valve is closed. 』

[0007] The technical means has the following operation. Before the operation of the washing machine, the water injection valve provided at the water inlet of the washing machine is closed. And, when the washing water injection unit is not operated, the water opening / closing valve is kept in the open state, and at this time, the tap water is filled in the water flow conduit, and the tap water valve of the washing machine always has direct tap water direct pressure. Working. In this state, when the washing machine is operated and its water injection valve is opened, tap water is injected into the washing machine, so that washing can be performed at any time without operating the washing water injection unit.
On the other hand, when the remaining water washing mode or the hot water washing mode is performed by operating the washing water injection unit and closing the water open / close valve, the water injection valve of the washing machine is opened to perform the washing process in the set mode. Tap water is not injected into the washing machine.

In the above technical means, it is preferable that "when the remaining hot water washing mode is performed in the washing water injection unit, a switching valve provided at a branch point of the remaining hot water introduction path in the bath circulation path is switched to a remaining hot water injection side, When the hot water washing mode is performed, the hot water opening / closing valve provided in the hot water introduction path is opened. ”According to this, when the water injection valve is opened by the washing machine and the remaining hot water is washed, the bath circulation path is used. The remaining hot water in the bath is reliably poured into the washing machine through the remaining hot water introduction path, and when performing the hot water washing, the hot water is reliably injected into the washing machine from the hot water supply path through the hot water introduction path. .

[0009]

As described above, according to the present invention, the tap water is always injected into the washing machine without operating the washing unit. No need at all. On the other hand, when the remaining hot water or hot water is washed in the washing machine by operating the washing water injection unit, the water on / off valve is closed to prevent the tap water from being injected. Washing or hot water can be performed reliably.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the configuration of the washing water injection unit includes a remaining hot water introduction path 2 for introducing the remaining hot water of the bath, a hot water introduction path 3 for introducing the hot water from the water heater 8, and a tap water introduction for introducing the tap water. The water supply pipe 1 is provided to join the three introduction paths of the path 4. Further, the washing and water supply unit includes an operation unit 9 for setting the remaining hot water washing mode or the hot water washing mode, and does not have the operation button of the above-described conventional water washing mode.

The remaining hot water introduction path 2 includes a bathtub 7 and a water heater 8.
Is branched from the bath circulation path 5 for circulating hot water in the bathtub 7 and connected to the water pipe 1. The bath circulation path 5 is inserted into a bath heat exchanger 81 in the water heater 8, and a pump P for circulating hot water in the bath circulation path 5 is provided on the way. This pump P is driven to circulate and heat the hot water between the bathtub 7 and the water heater 8 so that the bathtub 7 is heated.
They keep the hot water inside. In addition, the remaining hot water introduction path 2
Is equipped with a filter F, and purifies the remaining hot water in the bath by passing the filter F through.
A three-way valve 51 is attached to a branch point of the bath circulation path 5 where the remaining hot water introduction path 2 branches. Referring to FIG. 3 showing the switching state of the three-way valve 51, FIG.
Is a hot water circulation position, in which the remaining hot water introduction path 2 is closed and hot water is circulated between the bathtub 7 and the water heater 8. FIG. 6B shows a position where the remaining hot water is injected from the bath, in which the remaining hot water is prevented from returning to the bathtub 7 and is introduced into the remaining hot water introduction path 2. FIG. 3C shows a backwashing position, in which the remaining hot water introduction path 2 communicates with the bath circulation path 5, and tap water is introduced from the tap water introduction path 4 into the remaining hot water introduction path 2, and the filter F Is in a filter cleaning state in which water is supplied to the filter F to clean the filter F. Then, in a state where the washing water injection unit is not used, the three-way valve 51 is at the circulation position shown in FIG.

The hot water introduction passage 3 is connected to the hot water supply passage 3 of the water heater 8.
0 and is connected to the water flow pipe 1. A hot water solenoid valve 31 is provided in the middle of the hot water introduction path 3. The hot water solenoid valve 31 is closed when the washing water injection unit is not used, that is, in a non-energized state (normally closed solenoid valve). When washing with hot water, the valve is opened and
Is passed through the water pipe 1. The hot water path 3
Numeral 0 denotes hot water, which is integrally connected to a water supply passage 40 for supplying tap water to the water heater 8. The water supply passage 40 is inserted into a hot water supply heat exchanger 82 of the hot water supply 8, and the tap water is heated by the hot water supply heat exchanger 82 and converted into hot water.

The tap water introduction passage 4 is branched from a water supply passage 40 for supplying tap water to the water heater 8, and is connected to the water passage 1. The water solenoid valve 41
Unlike the hot water electromagnetic valve 31, the water electromagnetic valve 41 is opened in a state where the washing water injection unit is not used, that is, in a non-energized state (normally open electromagnetic valve). Therefore,
In a state before the operation of the washing water injection unit, the tap water is filled with the tap water from the water supply path 40 through the tap water introduction path 4, and the washing machine 6 is always in a state where tap water direct pressure is applied. is there.

The water pipe 1 has a faucet 62 attached to the tip thereof, and the water inlet of the washing machine 6 is fitted into the faucet 62. Therefore, when the faucet 62 is closed, water injection from the water passage 1 is prevented, and when the faucet 62 is opened, water injection from the water passage 1 becomes possible. The water flow pipe 1 is provided with a water flow switch S. When a water flow is generated in the water flow pipe 1, the water flow switch S is turned on. That is, when the faucet 62 is opened, the water injection solenoid valve 6 of the washing machine 6 is opened.
When the valve 1 is closed, the washing machine 6
The water flow switch S is in the OFF state since the water injection solenoid valve 61 is in a pressurized state in which the tap water pressure acts on the water injection electromagnetic valve 61, and no water flow occurs in the water flow conduit 1. On the other hand, when the water injection electromagnetic valve 61 of the washing machine 6 is opened from the pressurized state, water is injected into the washing machine 6 from the water flow conduit 1 and a water flow is generated, so that the water flow switch S is turned on. Therefore, the water injection solenoid valve 61 of the washing machine 6 is changed according to the ON / OFF state of the water flow switch S.
Can be determined whether the valve is open.

The operation unit 9 is provided with a power switch 92 and operation buttons 91 for determining one of a remaining hot water washing mode and a hot water washing mode, and has a control unit (not shown) therein. Since the water solenoid valve 41 provided in the tap water introduction passage 4 is a normally-open solenoid valve, it is kept open when the washing water injection unit is not operated (when not energized), and the washing water injection unit is operated. When the remaining hot water washing mode or the hot water washing mode is performed, the control unit controls the water solenoid valve 41 to close. That is, the control unit controls the state of water passage to the water passage 1 according to the setting mode determined by the operation button 91. The control of the water flow state will be described below.

When the remaining hot water or hot water is to be washed in the washing machine 6, the power switch 92 of the operation unit 9 is turned on. The electromagnetic valve 41 is closed, the three-way valve 51 provided in the bath circulation path 5 is switched to the remaining hot water injection side, and when washing with hot water, the water electromagnetic valve 41 is closed similarly, and the hot water introduction path 3 is closed. The provided hot water electromagnetic valve 31 is opened. That is, when the remaining hot water washing mode is performed, the water solenoid valve 41 is closed, and the three-way valve 51 is turned to the water injection position (FIG. 3B) to drive the pump P to pass the remaining hot water from the bath. Water is passed through the water pipe 1. When the hot water washing mode is performed, the water electromagnetic valve 41 is closed, the hot water temperature of the water heater 8 is set to a washing temperature (for example, 30 ° C.), the hot water electromagnetic valve 31 is opened, and the hot water is supplied to the water passage pipe. Pass water through 1.

When the OFF state of the water flow switch S continues for a predetermined time (for example, three minutes), the water injection solenoid valve 61 of the washing machine 6 is opened, and it is considered that the water injection in the washing process is completed. Only the valve is opened, and the water pipe 1 is set in a state of flowing tap water to prepare for the rinsing step of the washing machine 6. Thereafter, after detecting the ON state of the water flow switch S, the OF switch is turned off.
If the F state continues for a long time (for example, 30 minutes), it is considered that the rinsing step of the washing machine 6 has been completed, and the power of the washing water injection unit is turned off. At this time, the water solenoid valve 41 is kept open. On the other hand, when washing with the washing machine 6, the water solenoid valve 41 is kept open when the power of the operation unit 9 is turned off (when the washing water injection unit is not operated). Tap water is injected by activating 6. Therefore, no operation is performed on the washing water injection unit side.

Next, the operation of the washing water injection unit will be described. As shown in FIG. 1, the power switch 92 of the operation unit 9 is turned on, and the remaining hot water washing mode or the hot water washing mode is set by the operation button 91 (S10).
0). Then, when the remaining hot water washing mode is set here (S101), the water flow switch S is turned on (S10).
2), when it is determined that the washing machine 6 has been activated and the water injection electromagnetic valve 61 has been opened, the water electromagnetic valve 41 that has been opened is closed (S103). Then, the three-way valve 51 is rotated to the remaining hot water pouring position (FIG. 3B) (S104), and the pump P is driven (S105). Thereby, the remaining hot water of the bath in the bathtub 7 is injected from the bath circulation path 5 through the remaining hot water introduction path 2 to the washing machine 6 through the water passage pipe 1 (S10).
6) As a result, the remaining hot water is washed in the washing machine 6.

Then, after the remaining hot water is washed, it is detected that the water flow switch S is OFF, and if this OFF state continues for a predetermined time (for example, 3 minutes), it is considered that the water injection in the washing process of the washing machine 6 has been completed. Can be That is, when the washing process of the washing machine 6 is completed, the water injection electromagnetic valve 61 is closed, and the water flow in the water passage 1 is stopped. Therefore, when the OFF state of the water flow switch S continues for a predetermined time (for example, 3 minutes), the pump P is stopped (S108), and the three-way valve 51 is rotated to the circulation position (FIG. 3A) (S109). The state of passing the remaining hot water from the bath to the remaining hot water introduction path 2 is released.

Next, the water solenoid valve 41 is opened (S1).
10) The water pipe 1 is set in a state of flowing tap water to prepare for the rinsing step of the washing machine 6. Then, when the washing machine 6 shifts from the washing step to the rinsing step, tap water is injected from the water passage pipe 1 to the washing machine 6, and the rinsing step is executed (S111). At this time, the water flow switch S is turned on.
The state is detected. If the OFF state of the water flow switch S continues for a certain period of time, it is considered that the rinsing step of the washing machine 6 has been completed. Therefore, after detecting the injection of the tap water (detecting the ON of the water flow switch S), the OFF state of the water flow switch S is maintained for a predetermined time (for example, 30 seconds).
(Minutes) (S112), the power of the washing water injection unit is turned off and the operation is terminated. At this time, the water solenoid valve 41 of the tap water introduction path 4 is kept in the open state. With this, the operation of the washing water injection unit when the remaining hot water is washed is ended.

Next, when the hot water washing mode is set in the operation unit 9, the steps S101 to S20 are performed.
0 and the detection of ON of the water flow switch S (S2
00) When it is determined that the water injection electromagnetic valve 61 of the washing machine 6 is opened, the water electromagnetic valve 41 is closed (S201), the hot water temperature of the water heater 8 is set to the washing temperature (for example, 30 ° C.), and the hot water electromagnetic valve is set. The valve 31 is opened (S202, S203). As a result, warm water is injected into the washing machine 6 through the water passage 1 (S204), and hot water washing is performed. When the hot water injection is performed, the ON state of the water flow switch S is detected. After that, if the OFF state of the water flow switch S continues for a predetermined time (for example, 3 minutes) (S205), the water heater 8
The setting of the washing temperature of the hot water supply temperature is released at (S206).
The hot water electromagnetic valve is closed (S207). Thereafter, the operations from step S110 to step S112 are performed, and while the water solenoid valve 41 is kept in the open state, the power of the washing water injection unit is turned off and the operation is ended.

On the other hand, when washing with the washing machine 6, there is no need to perform any operation on the side of the washing water injection unit. That is, when the operation switch of the washing machine 6 is turned on, thereafter, tap water is injected from the water passage 1 according to the operation of the washing machine 6 (S300, S301). This is because the water solenoid valve 41 provided in the tap water introduction passage 4 is always in the open state in which the washing water injection unit is not operated and is opened, so that the water electromagnetic valve 61 of the washing machine 6 is opened and closed. This is because it is possible to control whether or not tap water is to be injected from the water pipe 1. As described above, since the tap water is ready to be poured into the washing machine 6 without operating the washing unit, no operation on the washing and pouring unit is required at the most frequent washing. On the other hand, when performing the remaining hot water washing or hot water washing by operating the washing water injection unit, the water solenoid valve 41 is closed to control so that tap water is not injected. The remaining hot water or hot water can be surely performed accordingly.

In the above embodiment, an electromagnetic valve (water electromagnetic valve 41) is used as the water opening / closing valve, but a motor-driven valve may be used. Similarly, the hot water electromagnetic valve 31 may be a motor-driven valve. Step S10
In 1, the determination of the setting mode in the operation unit 9 is the remaining hot water washing mode, but may be the hot water washing mode. In this case, if it is determined that the mode is the hot water washing mode, the process proceeds to step S200; otherwise, the process proceeds to step S102. Further, the valve closing operation of the water solenoid valve 41 is performed immediately after the water flow switch S is turned on after the washing mode is set (S103,
S201) It may be performed at any time after the power switch of the washing water injection unit is turned on and before the valve opening operation (S104, S203) after the mode determination is started.

After completion of the remaining hot water washing step, the three-way valve 51 is rotated to the circulation position to open the water solenoid valve 41 (S109, S110). The three-way valve 51 is turned to the backwash position (FIG. 3C),
The filter F may be washed by opening the water solenoid valve 41 and supplying tap water from the remaining hot water introduction path 2 to the filter F. Thereafter, the three-way valve 51 is moved to the circulation position (FIG. 3).
(A), the water solenoid valve 41 is kept open and ready for the rinsing step of the washing machine 6.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a method for controlling a laundry water supply unit according to an embodiment.

FIG. 2 is a schematic diagram showing a schematic configuration of a washing water supply unit.

FIG. 3 is a schematic diagram showing a switching state of a three-way valve of the washing water supply unit.

FIG. 4 is a flowchart illustrating a conventional method for controlling a laundry water injection unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 water flow pipe 2 remaining hot water introduction path 3 hot water introduction path 4 tap water introduction path 5 bath circulation path 6 washing machine 7 bathtub 8 water heater 9 operation unit 30 tapping water path 31 hot water electromagnetic valve 40 water supply path 41 water electromagnetic valve 51 three-way valve 61 water injection solenoid valve 62 faucet 81 bath heat exchanger 82 hot water supply heat exchanger 91 operation button 92 power switch P pump S water flow switch

Claims (2)

[Claims] 1. A water supply pipe connected to a washing machine includes a remaining hot water introduction path derived from a bath circulation path between a bathtub and a water heater, and a hot water introduction path derived from a hot water supply path of a water heater. And a tap water introduction path derived from a water supply path for supplying tap water to the water heater, and the remaining hot water, hot water, and tap water of the bath are separately poured into the washing machine from the outlet side of the water flow pipe. A method for controlling a laundry water injection unit, comprising: holding a water opening / closing valve provided in the tap water introduction path when the laundry water injection unit is not in operation; opening the laundry water injection unit to activate the remaining hot water washing mode. Alternatively, when the hot water washing mode is performed, the water on-off valve is closed. 2. The control method according to claim 1, wherein when the remaining hot water washing mode is performed in the washing water injection unit, a switch provided at a branch point of the remaining hot water introduction path in the bath circulation path. A method for controlling a washing water injection unit, characterized in that a valve is switched to a remaining hot water injection side, and a hot water opening / closing valve provided in the hot water introduction path is opened when a hot water washing mode is performed.