JPH10201994A - Water supply device of electric washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply device which can supply a soft finish agent upon dissolving and diluting certainly and an execute the water supply to a bucket in a short time by turning on a main valve and sub-valve simultaneously. SOLUTION: When a sub-valve is solely turned on, a soft finish agent in a case 21 is dissolved and diluted by supplying the water discharged by a sub- nozzle hole 20 to the case 21, and is allowed to flow out to a water pouring frame, and at the same time, water is poured to a bucket from the pouring hole 16 of water pouring frame 15; when both the main valve and sub-valve are turned on, the water discharged by the main nozzle hole 18 is poured into the pouring frame 15 without causing the water discharged by the sub-nozzle hole 20 to reach the case 21, and water pouring to the bucket is made through the frame 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for an electric washing machine.

[0002]

2. Description of the Related Art As shown in Japanese Patent Application Laid-Open No. 3-173599, a conventional water supply device for an electric washing machine turns on (opens) only a main valve of a water supply valve to open a detergent container. By supplying water, the detergent is poured into the washing tub together with the water, and only the sub valve of the water supply valve is turned on in the rinsing process.
Then, by supplying water to the soft finish container, the soft finish is poured into the washing tub together with the water.

[0003]

However, in the water supply device of the above-mentioned conventional electric washing machine, the sub-valve of the water supply valve is used only for charging the soft finish into the washing tub.
Until the final rinsing, the sub-valve is not opened (ON) and the normal water supply is performed only by the main valve, so that the water supply time is long. Further, if normal water supply is performed without adding a soft finish, a triple water supply valve is required, which is disadvantageous in that the cost is increased.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and the water supply device for an electric washing machine according to the first aspect of the present invention can be used for water supply. A water supply valve composed of a main valve and a sub-valve that can be connected and independently turned on and off, a water supply frame provided at an upper portion of the main body and having a water supply port at a lower end thereof communicating with a water tank, and a water supply valve provided in the water supply frame, When water is supplied from the water inlet provided in the soft finish agent contained therein, the soft finish agent is dissolved and diluted with water, and the soft finish agent case flows out from the water outlet provided in the lower portion to the water injection frame and the main valve. A main nozzle that is connected to supply water supplied from the main valve to a water injection frame from a main nozzle port, and that is connected to the sub-valve, and that water supplied from the sub-valve is provided to face the water receiving port. Through the water inlet from the sub nozzle A sub-nozzle for supplying the soft finish case to the soft finish case by supplying water discharged from the sub-nozzle port to the soft finish case via the water receiving port when only the sub-valve is turned on. Dissolves and dilutes the soft finish in the tank and discharges it to the water injection frame. At the same time, water is injected from the water injection port of the water injection frame into the water tank, and the water discharged from the main nozzle port when both the main valve and the sub valve are turned ON. The water discharged from the sub-nozzle port is supplied to the water injection frame without reaching the water receiving port, and the water is injected into the water tank via the water injection frame.

According to the above arrangement, by turning on only the sub-valve, the water discharged from the sub-nozzle connected to the sub-valve is supplied to the soft finishing agent case and the soft finishing agent in the soft finishing agent case is discharged. By dissolving and diluting the water into the water tank, and by turning on both the main and sub valves, the water discharged from the sub nozzle with the water discharged from the main nozzle flows into the water injection frame without reaching the soft finish case. Becomes As a result, only the sub valve is ON
By dissolving and diluting the soft finish, water can be injected into the water tank, and both the main and sub valves can be simultaneously turned on to supply water, so that the time required for water supply can be extremely short.

A water supply device for an electric washing machine according to a second aspect of the present invention is the water supply device for an electric washing machine according to the first aspect. After a lapse of time, in addition to turning on the sub valve, the main valve is turned on, water is supplied to the water injection frame from both the main and sub nozzle ports, and the water is injected into the water tank.

According to the above arrangement, the main valve is turned on in addition to turning on the sub-valve after a predetermined time after the start of the injection of the dissolution and dilution water of the soft finish in which only the sub-valve is turned on into the water tank.
Water will be injected from both the main and sub nozzle ports. As a result, in the rinsing step, since both the sub-valve and the main valve are turned on and water is injected after the dissolution and dilution water of the soft finish is injected into the water tank, the dissolved and diluted water of the soft finish can be reliably injected into the water tank. A water supply device that can execute water injection in a short time can be provided.

According to a third aspect of the present invention, in the water supply device for an electric washing machine according to the first aspect, only the sub-valve is turned on during a rinsing step.
After a predetermined period of time corresponding to the water level in the water tank, the main valve was turned on in addition to turning on the sub valve, water was supplied to the water injection frame from both the main and sub nozzle ports, and the water was injected into the water tank. It is characterized by things.

[0009] According to the above arrangement, after the start of the injection of the dissolving and diluting water of the soft finish in which only the sub-valve is turned on into the water tank, a predetermined time corresponding to the water level corresponding to the capacity of the laundry in the water tank elapses. Turn on the main valve in addition to turning on the sub valve,
Water will be injected from both the main and sub nozzle ports. As a result, in the rinsing step, after starting the injection of the dissolution and dilution water of the soft finish into the water tank, after a lapse of a predetermined time corresponding to the water level according to the capacity of the laundry, both the sub-valve and the main valve are turned on to inject water. Therefore, it is possible to provide a water supply device capable of reliably injecting the diluted water of the soft finish into the water tank and executing the water injection in a short time.

According to a fourth aspect of the present invention, there is provided a water supply device for an electric washing machine according to the first aspect of the present invention, wherein only the sub-valve is turned on during a rinsing step. After a predetermined time, the main valve is turned on and off in addition to turning on the sub-valve for a certain period of time. When the main valve is turned on, water is supplied to the water injection frame from both the main and sub nozzle ports, and the water is injected into the water tank. It is characterized by doing.

[0011] According to the above configuration, after a predetermined time has elapsed after the start of the injection of the dissolving and diluting water of the soft finish in which only the sub-valve is turned on into the water tank, the main valve is turned on in addition to turning on the sub-valve.
N, OFF, water is injected from both the main and sub nozzle ports when the main valve is ON. As a result, in the rinsing step, after starting the injection of the dissolving and diluting water of the soft finish into the water tank, the main valve is turned on and off in addition to turning on the sub-valve after a predetermined time has elapsed. It is possible to provide a water supply device that can surely pour dissolved dilution water of a finishing agent and can execute water injection in a short time.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

[Configuration] FIG. 1 is a front sectional view of an electric washing machine provided with a water supply device according to the present invention, and FIG. 2 is a plan view of the electric washing machine with a front operation panel removed. In these figures, 1 is a main body, 2 is a water tub, and 3 is a washing and dewatering tub that is rotatably arranged in the water tub 2, and is rotatably supported by a drive shaft 5 together with a pulsator 4 that is disposed at the bottom. I have. Reference numeral 6 denotes a deceleration / clutch mechanism, which responds to the operation flow and performs a pulsator 4 during the washing step and the rinsing step.
Only during the dehydration step, the washing and dewatering tub 3 and the pulsator 4 are simultaneously rotated.

Reference numeral 7 denotes a drive motor fixed to the bottom surface of the water tank 2, and its rotational force is transmitted to the speed reduction / clutch mechanism 6 via pulleys 8 and 9 and a belt 10. Reference numeral 11 denotes a water level detection sensor for detecting the water level in the water tank 2, reference numeral 12 denotes an unbalance detection sensor for detecting imbalance during the dehydration step, reference numeral 13 denotes a double water supply valve including a main valve 13a and a sub valve 13b, Reference numeral denotes a water supply port for supplying water supplied from the water supply valve 13 to the water tank 2.

As shown in FIG. 3, the water supply port 14 is
A water inlet 16 is disposed on the outer surface of the upper end of the rear wall of the main body 1 and provided at the lower end.
A water injection frame 15 provided with a water supply valve 13 and one valve side of the water supply valve 13;
In other words, a main nozzle 17 that is connected to the main valve 13a and is provided on the bottom surface of the water supply frame 15 through a main nozzle port 18 provided on the bottom surface, and is provided on the other valve side of the water supply valve 13, that is, on the front surface connected to the sub-valve 13b. A sub-nozzle 19 for injecting water from the sub-nozzle port 20 to the upper side surface of the water injection frame 15;
The water supply frame 15 includes a soft finish agent case 21 fixed to an inner surface of a front wall of the water supply frame 15.

The case 21 accommodates a soft finish, has a water receiving port 22 facing the sub-nozzle port 19 on the upper rear wall surface, has a water outlet 23 on the bottom face, and further has a siphon function inside. It has a meandering passage 24 formed by two tubes 25, 26 leading to a water outlet 23 so as to exert. FIG. 6 shows a control circuit, which corresponds to an operation switch 28 on an operation panel (not shown), a top cover safety switch 29, the water level detection sensor 11, and a capacity of the laundry as an input system of the microcomputer 27. A capacity detection circuit 31 for automatically detecting the volume of water in the water tank is provided, and the drive motor control circuit 32, the solenoid drive circuit 33, and the water supply valve control circuit 34 are controlled in accordance with input signals from these input systems. Has become.

[Operation] The present invention is configured as described above, and its operation will be described below with reference to FIGS. 3 to 5 and FIGS. 7 to 11.

Water supply operation during washing;
When the laundry and the detergent are put into the inside and the power switch is turned on and the washing start switch is turned on, first, only the main valve 13a of the water supply valve 13 is turned on in accordance with a command of the microcomputer 27 (step S in FIG. 7).
1). When the main valve 13a is turned on, the main valve 13
The tap water supplied from a is discharged vertically downward into the water injection frame 15 from the main nozzle port 18 of the main nozzle 17 and supplied with water (FIG. 3), and water is injected into the water tank 2 from the water injection port 16 of the water injection frame 15. Is done.

When a predetermined time (several seconds) elapses after the main valve 13a is turned on (step S2), the sub valve 13b of the water supply valve 13 is turned on by a command from the microcomputer 27 (step S3). By turning on 13b, the tap water supplied from the sub-valve 13b is discharged horizontally from the sub-nozzle port 20 of the sub-nozzle 19 into the water-injection frame 15 and supplied with water. Water will be poured into the water tank 2 vigorously. This water supply time is performed up to the water level corresponding to the amount of the laundry put into the water tub 2, and the water supply valve 13 is turned off by the water level detection of the water level detection sensor 11.
It is stopped by F.

Upon completion of the water supply, the step proceeds to the next step, and shifts to the washing step. Needless to say, in this washing step, the rotational force of the drive motor 7 is transmitted only to the pulsator 4 by the operation of the deceleration and clutch mechanism 6, and the pulsator 4
Only rotate. At this time, the water supplied horizontally from the sub-nozzle port 20 of the sub-nozzle 19 to the water injection frame 15 is formed by the water supplied vertically downward from the main nozzle port 18 of the main nozzle 17 as a wall. The water enters the water injection frame 15 downward along with the water supply (FIG. 4). As a result, the water at the sub-nozzle port 20 does not enter the water receiving port 22 of the soft finish agent case 21 and the two valves 13a
The water supply time can be shortened because water is supplied from and 13b.

Water supply operation in final rinsing step: When the above-described washing operation is completed, the preliminary rinsing is completed, and the final rinsing step is started, the electric washing machine enters an operation flow shown in FIG. That is, when entering the final rinsing step, the microcomputer 27 turns on only the sub-valve 13b (step S4), and the tap water supplied from the sub-valve 13b is fed horizontally through the sub-nozzle port 20 of the sub-nozzle 19 into the water injection frame 15. Water.

The horizontally supplied water from the sub-nozzle port 20 enters the soft finish agent case 21 through the water receiving port 22 as shown in FIG. In a state in which the soft finish is dissolved and diluted, a water injection frame 1 is passed through the meandering passage 24 and the water outlet 23.
Runs out to 5. That is, the water at the sub-nozzle port 20 is subjected to the siphon effect in the soft finish case 21 to dissolve and dilute the soft finish, and is diluted into the soft finish as the diluting water of the soft finish, and is injected into the water tank 2 from the water injection frame 15.

Next, when a predetermined time elapses after the sub-valve 13b is turned on, the main valve 13a is turned on (steps S5 and S6), and water supplied from the main valve 13a is injected from the main nozzle port 18 of the main nozzle 17. Water is supplied vertically downward into the frame 15. As a result, the water that has been supplied horizontally into the water injection frame 15 from the sub-nozzle port 20 of the sub-nozzle becomes the main nozzle port 18 of the main nozzle.
Due to the wall of water supplied from the nozzle port 18, the water flows downward along with the water at the nozzle port 18, enters the water injection frame 15 without entering the water receiving port 22, and enters the water tank 2 through the water injection port 16.
It is poured into water.

When the water level in the water tank 2 reaches a specified level due to the water supply accompanying the ON of the two valves 13a and 13b,
The energization of the drive motor 7 is started, only the pulsator 4 is rotated by the operation of the deceleration and clutch mechanism 6, and the final rinsing step is executed.

The time from when the sub-valve 13b is turned on to when the main valve 13a is turned on depends on the level of water supplied to the water tank determined by the capacity of the laundry. One example is shown in FIG. That is, when the water level is “high”, 10
Seconds, 15 seconds for "medium", 18 seconds for "low", and 20 seconds for "small". Next, another embodiment of the final rinsing step will be described with reference to the operation flow of FIG.

In this embodiment, in the embodiment shown in FIG. 8, after a lapse of a predetermined time (step S5) after the sub-valve 13b is turned on, step S5-1 is performed.
Then, as shown in step S5-2, the main valve 13a is turned ON and OFF for a predetermined time according to the water level. This is because the water supply time is shortened by turning on the main valve 13a and the water is supplied to the soft finishing agent case 21 based on the turning on of the sub-valve 13b being continuously executed from step S4 when the main valve 13a is turned off, so that the soft finishing agent is supplied. Is completely poured into the water tank 2.

When a predetermined time has elapsed from the start of the ON / OFF operation of the main valve 13a, the main valve 13a is set to a continuous ON state. Thereafter, when the main valve 13a and the sub-valve 13b are simultaneously turned on, water is rapidly injected into the water tank 2. When a predetermined water level is reached, the drive motor 7 is energized, and the pulsator 4 is actuated by the operation of the deceleration and clutch mechanism 6. Is rotated and the final rinsing step is performed. Note that FIG. 11 shows a step S5--of the main valve 13a.
1 shows an example of a time corresponding to the water level of the ON / OFF operation in No. 1. For example, when the water level is “high”, the ON time is 20 seconds, and the OFF time is 10 seconds.

[0027]

According to the present invention, the water supply device for an electric washing machine according to the first aspect of the present invention has a main valve which is connected to a water supply and can be turned on and off independently. A water supply valve composed of a sub-valve, a water supply frame provided at the upper part of the main body and having a water supply port at the lower end communicating with the water tank, and water supplied from a water receiving port provided in the water supply frame and provided at the upper part. And a soft finish agent case that is dissolved and diluted with water to dissolve and dilute the soft finish agent contained therein and flows out from the water outlet provided in the lower portion to the water injection frame, and is connected to the main valve and supplied with water from the main valve. A main nozzle for supplying water to the water injection frame from the main nozzle port, and the water supplied from the sub-valve is connected to the sub-valve, and the water supplied from the sub-valve is provided from the sub-nozzle port provided opposite the water receiving port through the water receiving port. Sub nozzle to supply soft finish case When only the sub-valve is turned on, the water discharged from the sub-nozzle port is supplied to the soft finish agent case through the water receiving port to dissolve and dilute the soft finish agent in the soft finish agent case. The water discharged from the sub-nozzle port is the water discharged from the main nozzle port when the main tank and the sub-valve are turned on when the water is poured into the water tank through the water inlet of the water-supply frame and the water port is filled. The structure is such that the water is poured into the water injection frame without reaching the water receiving port, and water is injected into the water tank through the water injection frame.

According to the present invention, the soft finish can be dissolved and diluted by turning on only the sub-valve and injected into the water tank, and water can be supplied by turning on both the main and sub-valves at the same time. As a result, water can be reliably injected into the water tank, and water can be supplied to the water level required for the rinsing step in a very short time.

According to a second aspect of the present invention, there is provided a water supply apparatus for an electric washing machine according to the first aspect of the present invention, wherein only the sub-valve is turned on during a rinsing step. After a lapse of time, in addition to turning on the sub-valve, the main valve is turned on, water is supplied to the water injection frame from both the main and sub nozzles, and the water is injected into the water tank. According to the present invention, in the rinsing step, both the sub-valve and the main valve are turned on and water is injected after pouring the dissolving and diluting water of the soft finish into the water tank. It is possible to provide a water supply device that can surely inject water and execute the water injection in a short time.

According to a third aspect of the present invention, in the water supply device for an electric washing machine according to the first aspect, only the sub-valve is turned on during a rinsing step.
After a predetermined period of time corresponding to the water level in the water tank, the main valve was turned on in addition to turning on the sub valve, water was supplied to the water injection frame from both the main and sub nozzle ports, and the water was injected into the water tank. Configuration.

According to the present invention, in the rinsing step,
After the start of the injection of the dissolving and dilution water of the soft finish into the water tank, after the elapse of a predetermined time corresponding to the water level according to the amount of laundry, both the sub-valve and the main valve are turned on and water is injected. It is possible to provide a water supply device that can surely pour dissolved and diluted water into a water tank and can execute water injection to a water level required for a rinsing step in a short time.

According to a fourth aspect of the present invention, there is provided a water supply device for an electric washing machine according to the first aspect of the present invention, wherein only the sub valve is turned on during a rinsing step. After a predetermined time, the main valve is turned on and off in addition to turning on the sub-valve for a certain period of time. When the main valve is turned on, water is supplied to the water injection frame from both the main and sub nozzle ports, and the water is injected into the water tank. This is the configuration.

According to the present invention, in the rinsing step,
After starting the injection of the dissolution and dilution water of the soft finish into the water tank, the main valve is turned on in addition to turning on the sub-valve after a predetermined time has elapsed.
Since the water is turned off and injected, it is possible to provide a water supply device that can reliably inject the diluted water of the soft finish into the water tank and can execute the injection in a short time.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a main part of an electric washing machine provided with an embodiment of a water supply device according to the present invention.

FIG. 2 is a plan view showing a state where a rear operation panel of the electric washing machine is removed.

FIG. 3 is a side sectional view of a water supply port body showing a state in which water is supplied only from a main nozzle in the water supply apparatus according to the present invention.

FIG. 4 is a side sectional view of a water supply port body showing a state in which water is supplied from both a main nozzle and a sub nozzle in the water supply device according to the present invention.

FIG. 5 is a side sectional view of a water supply port body showing a state in which water is supplied only from a sub nozzle in the water supply apparatus according to the present invention.

FIG. 6 is a block electric circuit diagram showing a control circuit in the electric washing machine having the embodiment of the water supply device according to the present invention.

FIG. 7 is a diagram showing an operation flow for explaining a water supply operation during a washing process of the water supply device according to the present invention.

FIG. 8 is a diagram showing an operation flow for explaining a water supply operation in a rinsing step of the water supply device according to the present invention.

FIG. 9 is a diagram showing the relationship between the level of water supplied to the water tank and the time from when the sub-valve is turned on to when the main valve is turned on in the water-supplying operation during the rinsing step of the water-supplying device according to the present invention.

FIG. 10 is a diagram showing an operation flow provided for explaining a water supply operation of another embodiment of the rinsing step in the water supply device according to the present invention.

FIG. 11 is a view showing a relationship between a water level supplied to a water tank and an ON time and an OFF time of a main valve in a water supply operation of another embodiment of the rinsing step in the water supply apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Water tank 3 Washing and dewatering tank 4 Pulsator 7 Drive motor 13 Water supply valve 13a Main valve 13b Sub valve 14 Water supply port body 15 Water injection frame 17 Main nozzle 18 Main nozzle port 19 Sub nozzle 20 Sub nozzle port 21 Soft finishing agent case 22 Water receiving Mouth 23 water outlet

Claims (4)

[Claims] 1. ON and OFF independently connected to water supply
A water supply valve comprising a main valve and a sub-valve which can be provided; a water supply frame provided at an upper portion of the main body and having a water supply port at a lower end thereof communicating with a water tank; and a water supply port provided in the water supply frame and provided at an upper portion thereof. When the water is supplied, the soft finish agent contained inside is dissolved and diluted with water, and the soft finish agent case is connected to the main valve, which is connected to the main valve, and is supplied from the main valve through a water outlet provided at a lower portion and flowing out to the water injection frame. And a main nozzle for supplying water to the water injection frame from the main nozzle port, and water supplied from the sub-valve. The water supplied from the sub-valve is supplied from a sub-nozzle port provided opposite the water receiving port. And a sub-nozzle for supplying the soft finish agent case through the sub-nozzle. When only the sub-valve is turned on, the water discharged from the sub-nozzle port is supplied to the soft finish agent case through the water receiving port to thereby supply the soft finish agent case. Finish Dissolves and dilutes the soft finishing agent in the agent case and allows it to flow out into the water injection frame. At the same time, the water is injected into the water tank from the water injection port of the water injection frame, and is discharged from the main nozzle port when both the main valve and the sub valve are turned ON. Characterized in that water discharged from the sub-nozzle port is poured into the water injection frame without reaching the water receiving port, and water is injected into the water tank via the water injection frame. . 2. During the rinsing step, only the sub-valve is
After a predetermined time after N, in addition to turning on the sub valve, the main valve is turned on, water is supplied to the water injection frame from both the main and sub nozzle ports, and the water is injected into the water tank. 2. The water supply device for an electric washing machine according to 1. 3. During the rinsing step, only the sub-valve is
After N, after a predetermined time corresponding to the water level in the water tank, the main valve is turned on in addition to turning on the sub valve, water is supplied to the water injection frame from both the main and sub nozzle ports, and the water is injected into the water tank. The water supply device for an electric washing machine according to claim 1, wherein 4. During the rinsing step, only the sub-valve is
After a predetermined time after N, the main valve is turned on and off in addition to turning on the sub-valve for a certain period of time, and water is supplied to the water injection frame from both the main and sub nozzle ports when the main valve is turned on.
2. The water tank is filled with water.
A water supply device for an electric washing machine according to claim 1.