JP2002035470A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a detergent not remain when a break occurs during a detergent feeding operation, by controlling responding to a step of the operation at break. SOLUTION: When the break occurs in the middle of a detergent feeding operation (case 3), a detergent feeding motor, a cover closing motor for operating a cover closing a detergent outlet and a water supply valve are sequentially stopped having time differences, waiting an indication for resumption. At this time, stopping the detergent feeding operation and closing the detergent outlet with a delayed time prevent detergent from being caught between the detergent outlet and the cover. After closing the detergent outlet, with a delayed time from that, stopping a water supplying operation allows the detergent introduced into a detergent introducing part to be wholly washed out and prevented from remaining in the detergent introducing part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having a function of automatically putting a detergent stored in a detergent storage section into a washing tub.

[0002]

Heretofore, some washing machines have been provided with a detergent feeding device for automatically feeding a detergent into a washing tub. The detergent dosing device includes a detergent storage unit capable of storing a plurality of detergents, a lid for opening and closing a detergent outlet connected to the detergent storage unit, and a lid opening and closing motor for opening and closing the lid. An opening / closing mechanism and a detergent feed motor that sends the detergent in the detergent reservoir to the lower part of the detergent through the detergent outlet are provided.
It is controlled by a control device including a microcomputer provided in the washing machine.

[0003] As for the detergent input operation, for example, after the lid is opened by the lid opening and closing mechanism to open the detergent outlet,
The water supply valve is operated to supply water, and thereafter, the detergent feed motor is operated to feed the set amount of detergent to the lower part of the detergent. The detergent sent to the lower portion of the detergent is dissolved by water passing through the lower portion of the detergent, and supplied to the washing tub together with the water. When the detergent feed time is over, the detergent feed motor is stopped, and the lid is closed to close the detergent outlet. Then, when the set water level is reached, the water supply operation by the water supply valve is stopped.

In the meantime, in the case where there is an interruption due to a temporary stop operation in the course of such a detergent injection operation, conventionally, the operating device is immediately stopped and restarted from the beginning with a restart operation. For this reason, for example, if there is an interruption during the detergent feeding operation, the detergent may remain in the lower part of the detergent, and if not restarted, the detergent may remain in the lower part of the detergent. There was a thing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to perform control according to the stage of the detergent input operation at the time of interruption when the detergent input operation is interrupted. It is another object of the present invention to provide a washing machine capable of preventing a detergent from remaining.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, an invention according to claim 1 includes a washing tub, a detergent storage capable of storing a plurality of times of detergent, and a detergent storage for storing the detergent. A lid that opens and closes a series of detergent outlets, a lid opening and closing unit that opens and closes the lid, a detergent sending unit that sends the detergent in the detergent reservoir through the detergent outlet to a detergent throw-down unit, and water washing through the detergent throw-down unit. Water supply means for supplying to the tub, and a control means for supplying the detergent to the washing tub together with water by controlling the operation of the lid opening / closing means, the detergent feeding means and the water supply means in a detergent input operation in a predetermined order, The control means, when there is an interruption in the middle of the detergent input operation, changes a control mode according to a stage of the detergent input operation at the time of the interruption.

[0007] According to this, if there is an interruption in the middle of the detergent input operation, control can be performed according to the stage of the detergent input operation at the time of the interruption, so that the detergent remaining does not occur. Becomes possible.

According to a second aspect of the present invention, in the detergent input operation by the control means, the lid is opened by the lid opening / closing means to open the detergent outlet, the water supply means is supplied with water, and then the detergent supply means is supplied. The set amount of detergent is sent out to the detergent dropping portion, and then the lid is opened and closed by the lid opening / closing means to close the detergent outlet, and thereafter, the water supply operation by the water supply means is stopped, and the control means is: If there is an interruption during the detergent feeding operation by the detergent feeding means, the detergent feeding operation by the detergent feeding means is stopped, and then the lid is opened and closed by the lid opening / closing means to close the detergent outlet, and then water supply is performed. The water supply operation by the means is stopped.

According to this, if there is an interruption during the detergent feeding operation by the detergent feeding means, the detergent feeding operation is stopped,
Since the detergent outlet is closed later, it is possible to prevent the detergent from being caught between the detergent outlet and the lid. In addition, after the detergent outlet is closed, the water supply operation is stopped after a delay, so that all the detergent dropped in the detergent drop can be flushed with water, preventing the detergent from remaining in the detergent drop. it can.

According to a third aspect of the present invention, when the control means interrupts after the detergent feeding operation by the detergent feeding means is completed,
After the detergent outlet is closed by the lid, the water supply operation by the water supply means is stopped, and the detergent injection operation is terminated. In this case, it is an interruption after the introduction of the detergent, and after performing the operation for terminating the detergent introduction operation, by terminating the detergent introduction operation, it is possible to prevent a wasteful operation such as re-starting the detergent introduction operation when resuming. .

The invention according to a fourth aspect is characterized in that the control means closes the detergent outlet with the lid and stops the water supply operation by the water supply means when there is an interruption before the detergent supply operation by the detergent supply means. And In this case, it is an interruption before the detergent is supplied.
There is no problem even if the water supply operation is stopped, and the power supply can be prevented from being wasted.

According to a fifth aspect of the present invention, in the detergent input operation by the control means, the lid is opened by the lid opening / closing means to open the detergent outlet, the water supply means is supplied with water, and then the detergent feed means is fed. Then, a predetermined amount of detergent is sent out to the lower part of the detergent, then the lid is opened and closed by the lid opening / closing means to close the detergent outlet, and thereafter, the water supply operation by the water supply means is stopped. ,
If there is an interruption due to a temporary stop operation during the detergent feeding operation by the detergent feeding means, the detergent feeding operation by the detergent feeding means is stopped, and then the water supply operation by the water supply means is stopped, and the detergent outlet is opened. It is characterized by being maintained as it is.

According to this, if there is an interruption during the detergent feeding operation by the detergent feeding means, after the detergent feeding operation is stopped, the water supply operation is stopped after that, so that the detergent feeding operation is stopped. All of the used detergent can be flushed with water, and the detergent can be prevented from remaining in the lower part of the detergent.
The interruption in this case is an interruption due to a temporary stop operation by the user, and is usually resumed immediately.Therefore, the operation of opening the lid again at the time of resumption by keeping the lid of the detergent outlet open. Is no longer required, and the operation can be resumed in a short time.

According to a sixth aspect of the present invention, when the detergent input operation is resumed after the interruption, if the detergent has been fed halfway before the interruption, the control means performs the detergent feed for the remaining input. Features. According to this, the set amount of detergent is supplied before and after the interruption, so that the detergent can be prevented from being used excessively.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 2 shows the appearance of a washing machine with a detergent introduction device.
In FIG. 2, a top cover 2 is attached to an upper portion of an outer box 1 of the washing machine. A water tub (not shown) is provided inside the outer box 1, and a washing tub 3 for storing laundry is provided inside the water tub. The washing tub 3 also serves as a dehydration tub, and a stirrer (not shown) is provided at an inner bottom thereof. A washing machine motor is disposed on the outer bottom of the water tub, and the washing machine motor rotates the stirrer forward and reverse to wash the laundry, and rotates the stirrer and the washing tub 3 at a high speed. Dehydration is performed.

At a substantially central portion of the top cover 2, there is formed a laundry entrance / exit 4 facing the washing tub 3, and a two-fold type laundry lid 5 for opening and closing the laundry entrance / exit 4 is provided. Have been. An operation panel 6 for performing operations related to the operation of the washing machine is provided at a front portion of the top cover 2, and a back cover 7 is provided at a rear portion. The operation panel 6 is provided with various key switches 8 including a start switch 8a and a display unit 9.

Further, a detergent feeding device 10 is provided on the back cover 7. This detergent injection device 10
In detail, as shown in FIG. 3, a case 11 has a hopper 12 which constitutes a detergent storage part having a capacity for accommodating a plurality of powdered detergents. A detergent agitating body 13 having a projection is provided so as to be rotatable about a horizontal axis.
A detergent delivery body 14 is provided at the lowermost part of the inside 2.

The detergent-dispensing body 14 is composed of a coil, in particular, a coil whose diameter gradually increases from the base end on the left side in the figure to the middle part, and is straight from the middle part to the tip end on the right side in the figure. One of the projections of the detergent agitator 13 is engaged with an intermediate part of the projection. Therefore, when the detergent delivery body 14 is rotated, the detergent agitator 13 is also rotated accordingly.
The projections that are engaged with are rotated sequentially.

A detergent outlet 15 connected to the hopper 12 is formed at the lower right end of the hopper 12.
The tip portion of the detergent delivery body 14 is located inside this. The detergent outlet 15 is normally closed by a lid 16 that opens and closes the detergent outlet. As shown in FIG. 4, a disk-shaped protection plate 17 is provided inside the hopper 12 along with the detergent agitator 13. This protection plate 17 is
When a hand or the like is inserted into the inside, the hand or the like is prevented from touching the rotating detergent delivery body 14, and is rotated integrally with the detergent stirring body 13.

A bearing 18 is provided at the lower left end of the hopper 12, and a shaft 19 integrated with the base end of the detergent delivery body 14 is located inside the bearing 18. A driven gear 20 is mounted on the left side of the shaft 19 opposite to the detergent delivery body 14 side. As shown in FIG. 4, the driven gear 20 is meshed with a drive gear 22 rotated by a detergent feed motor 21 composed of a geared motor. Therefore, the driving gear 2 is driven by the detergent feed motor 21.
2 is rotated, the rotation is driven by the driven gear 20 and the shaft 19.
Is transmitted to the detergent delivery body 14 through the hopper 12 and rotates. With the rotation of the detergent delivery body 14, the detergent in the hopper 12 is sent from the detergent outlet 15 to the detergent throwing portion 23 below the detergent outlet 15. . In this case, the detergent feed motor 21 and the detergent feeder 14 constitute a detergent feed means.

The lid 16 is, as shown in FIG.
And is urged in a direction to close the detergent outlet 15 by a spring (not shown). A lid opening / closing motor 25 for opening the lid 16 is a geared motor, and is disposed on the top cover 2 at a position behind the hopper 12. The lid opening / closing motor 25 winds the wire 26 with energization and
7 is rotated, and the lid 16 is opened by the rotating body 27. An electromagnetic solenoid for keeping the lid 16 open is provided inside the lid opening / closing motor 25. When the lid opening / closing motor 25 and the electromagnetic solenoid are turned off, the lid 16 is rotated in a direction to close the detergent outlet 15 by a spring (not shown). In this case, the cover opening / closing motor 25 constitutes a cover opening / closing unit.

Under the back cover 7, a washing tub 3 is provided.
Water supply pump 3 as water supply means for supplying water to the inside
0, a water supply valve 31, and a water injection case 32 are provided. The water supply pump 30 is provided with a motor 34 and an impeller 35 that is rotated and driven by the motor 34 inside a pump case 33. A water intake 36 that absorbs water by the rotation of the impeller 35, A water outlet 37 for discharging the absorbed water, and the water inlet 36 of the water outlet 37 is exposed upward from the back cover 7.

The water supply valve 31 has one water inlet 38 at an upper part and two first and second water outlets 39 and 40 at a front part thereof. 39, and from the water inlet 38 to the second water outlet 40.
A three-way valve that switches the opening of the flow path to the drive port by the driving force of a drive source such as a solenoid or a motor is provided.
Is exposed upward from the back cover 7.

The water injection case 32 is for injecting the water supplied by the water supply pump 30 and the water supply valve 31 into the washing tub 3, and only a part thereof is shown in FIG. A water channel through which the water outlet 37 communicates, and the water supply valve 31
Of the first water outlet 39 and the second water outlet 4
0 has a water passage, and the water flowing through the water passage through the first water outlet 39 of the water supply valve 31 is indicated by an arrow A in FIG.

The bottom of the concave portion 41 of the back cover 7 and the water injection case 32 are provided with detergent passages 42 and 43 located below the detergent outlet 15 of the detergent introduction device 10. Is the above-mentioned detergent casting lower part 23 in the water injection case 32. The water flowing through the water passage through which the first water outlet 39 of the water supply valve 31 communicates flows into the detergent dropping portion 23.

In addition, in addition to the water channel through the water outlet 37 of the water supply pump 30 and the water channel through the second water outlet 40 of the water supply valve 31, the first water outlet 39 of the water supply valve 31 has an outlet. It is the same as the open channel, and faces the washing tub 3. Also,
A drawer 44 is attached to the common outlet of the waterways so that the drawer 44 can be moved in and out.
In particular, for the water channel through which the second water outlet 40 of the water supply valve 31 communicates, the storage device has a storage section for storing a laundry aid, for example, a soft finish, and the stored soft finish is subjected to, for example, water flowing through the water channel. It is being poured out by the siphon method. Then, the hopper 12
Is provided with a detergent lid 45 for opening and closing the opening on the upper surface of the container.

On the other hand, FIG. 5 shows an electrical configuration of a portion related to the gist of the present invention. In FIG.
The control device 50 constituting the control means controls the overall operation of the washing machine, includes a microcomputer, and is arranged behind the operation panel 6. The control device 50 converts the commercial AC power
The DC power supply of the C power supply circuit 52 is used as a power supply.

The control device 50 includes a water level sensor 53 for detecting the water level in the washing tub 3, a temperature sensor 54 for detecting the temperature of the water in the washing tub 3, various key switches 8 on the operation panel 6, Each signal is input from a position sensor 56 that detects a rotation position of a washing machine motor 55 for rotating the agitator and the washing tub therein. In addition, the control device 50 controls the washing machine motor 55 via the inverter circuit 57 according to the signals and a program stored in advance, and controls the lid opening / closing motor 25,
Detergent feed motor 21, water supply valve 31, water supply pump 30, drain valve motor 58, and display unit 9 on operation panel 6.
Is controlled.

In this case, the control device 50 controls the operation panel 6
When the start switch 8a is pressed once, the washing operation starts, and during the operation, the start switch 8a
When the button is pressed, the operation is suspended as a temporary stop operation, and when pressed again, the operation is resumed as a restart operation. The AC clock circuit 59 is configured to input a rectangular wave signal synchronized with the frequency of the AC power supply 51 to the control device 50. When the control device 50 confirms that there is no change in the signal for a predetermined time, a power failure occurs. Is determined.

Next, regarding the operation of the above configuration, a flowchart showing the control contents of the control device 50 shown in FIGS. 7 and 8 will be described.
The description will be made with reference to the time charts of FIGS.

First, before using the washing machine, the water supply valve 31 is used.
The water inlet 38 is connected to a water tap (not shown) by a water supply hose (also not shown). When washing with remaining hot water (bath water) in the bath, one end of a water absorbing hose (not shown) is connected to the water inlet 36 of the water supply pump 30, and the other end of the water absorbing hose is connected to a bathtub (not shown). Immerse in water. Further, detergent (powder) for a plurality of times of washing is put into the hopper 12 of the detergent introduction device 10, and the detergent lid 45 is closed.

In this state, laundry (not shown) is put in the washing tub 3, the washing lid 5 is closed, and the operation of the washing machine is started. In this case, it is assumed that a standard course in which tap water is supplied to the washing tub 3 through the water supply valve 31 is selected. The control device 50 first rotates the stirrer in the washing tub 3, and detects the rotation speed of the stirrer drive motor (washing machine motor 55) based on a signal from the position sensor 56 at this time. To measure the amount of laundry (step S1), and based on the measurement result, the amount of detergent to be introduced and the required water level are set (step S2). Thereafter, a detergent input operation is performed.

The basic operation of the detergent injection operation is shown in the time chart of FIG. As the first stage of the detergent input operation, first, the lid opening / closing motor 25 is driven to open the lid 16 and the detergent outlet 14 is opened (Step S).
3). Thereafter, while determining whether or not there is an instruction to interrupt the operation, the process waits for a predetermined time, in this case, 4 seconds, to elapse (steps S4 and S5). When 4 seconds elapse without an operation interruption instruction, as a second stage, the water supply valve 31 is turned on (step S6), and the water inlet 38 and the first water outlet 39 are turned on.
To open the flow path. Thus, the water supply operation is started in which the water from the first water outlet 39 is supplied into the washing tub 3 through the water passage (see the arrow A in FIG. 3) passing through the detergent casting part 23 of the water injection case 32. You.

During this water supply operation, it waits for a predetermined time, in this case, 5 seconds, while determining whether or not there is an instruction to suspend the operation (steps S7 and S8). After 5 seconds have passed without an operation interruption instruction, the detergent feed motor 21 is turned on as a third step (step S9). Then, the detergent feed motor 21 is driven, and the drive gear 22 and the driven gear 2
The detergent delivery body 14 is rotated via the shaft 0 and the shaft 19, and with the rotation of the detergent delivery body 14, the detergent in the hopper 12
It is automatically sent out from the detergent outlet 15 in the open state as shown by an arrow B in FIG.

The discharged detergent falls into the detergent dropping portion 23 of the water injection case 32 located below the detergent outlet 15, and is dissolved in the flowing water through the detergent dropping portion 23 as described above. The water is supplied from the outlet of the case 32 into the washing tub 3. At this time, in the hopper 12, the detergent agitating body 13 is rotated in accordance with the rotation of the detergent delivery body 14, so that the detergent in the hopper 12 is loosened. During the detergent feeding operation, it is determined whether or not there is an instruction to suspend the operation.
The detergent feeding operation is continued until the time corresponding to the detergent amount set in the step elapses (steps S10 and S11).

Then, when the setting time has elapsed, the fourth
As a step, the detergent feed motor 21 is turned off (step S12), and the detergent feed operation is stopped. Thereafter, while determining whether or not there is an instruction to suspend the operation, the process waits for a predetermined time, in this case, 2 seconds (steps S13 and S13).
14). After 2 seconds, as a fifth step, the lid opening / closing motor 25 is turned off (step S15), the lid 16 is closed, and the detergent outlet 15 is closed.

Thereafter, the water supply operation is continued until the water in the washing tub 3 reaches the set water level, while judging whether or not there is an instruction to suspend the operation (steps S16 and S17). The set water level at this time is set based on the measurement result of the laundry amount, and the water level is detected by the water level sensor 53. When the water level in the washing tub 3 reaches the set water level, the water supply valve 31 is closed, and water supply to the washing tub 3 is stopped (step S18).
As a result, the amount of water and the amount of detergent corresponding to the amount of laundry are supplied, and the detergent input operation ends. After this, a washing step, a rinsing step, a dehydration step, and the like are performed.

Next, the operation in the case where there is an instruction to suspend by the temporary stop operation during the above-described detergent introduction operation will be described.
This will be described with reference to FIGS. Case 1: If there is an instruction for interruption in the first stage (before the detergent feeding operation) after opening the detergent outlet 15 in step S3, step S4 is followed by "YES".
The process proceeds to step S19, where the detergent outlet 15 is closed, and thereafter, the apparatus stands by until a restart instruction is issued (step S20). And
If there is an instruction to restart, step S3 is performed according to "YES".
Return to and start over.

Case 2: If an interruption instruction is given in the second stage (before the detergent feeding operation) after turning on the water supply valve 31 in step S6, the process proceeds to step S21 according to "YES" in step S7. Then, the water supply valve 31 is turned off to stop the water supply operation, and the detergent outlet 15 is closed (step S1).
9) After that, it waits until there is a restart instruction (step S20). If there is an instruction to resume, "YES"
Returns to step S3 and repeats.

Case 3: If an instruction for interruption is given in the third stage (during the detergent feeding operation) after the detergent feeding motor 21 is turned on in step S9, "YE" is set in step S10.
In step S22, the detergent feed motor 21 is turned off to stop the detergent feed operation. At this time, the time when the detergent feeding operation is performed is stored. Thereafter, the process waits for a predetermined time, in this case, 2 seconds (step S23).
Is operated to close the detergent outlet 15 (step S
24). Thereafter, the process waits until a predetermined time, in this case, one second has elapsed (step S25).
Is turned off to stop the water supply operation (step S26),
Thereafter, the process returns to step S20, and waits for a restart instruction.

If there is a restart instruction, the flow returns to step S3 according to "YES", and the operation of adding the detergent is performed again.
In this case, the detergent supply setting time in step S11 is such that the detergent feed is executed for the remaining time of the time executed before the interruption (for the remaining input).

Case 4: If there is an instruction to interrupt in the fourth step (after the end of the detergent feeding operation) after the detergent feeding motor 21 is turned off in step S12, the process proceeds to step S27 according to "YES" in step S13. Then, for a predetermined period of time, in this case, two seconds after the detergent feed motor 21 is turned off.
After waiting for a lapse of seconds, the detergent outlet 15 is closed (step S28). Thereafter, after a lapse of a predetermined time, in this case, one second, the water supply valve 31 is turned off to stop the water supply operation (steps S29 and S30), and waits for a restart instruction (step S31). Then, when there is a restart instruction, the water supply valve 31 is turned on to restart the water supply operation (step S3).
2) Thereafter, the flow returns to step S17, and the water supply operation is continued until the set water level is reached.

Case 5: Detergent outlet 1 in step S15
If there is an instruction to interrupt at the fifth stage (after the end of the detergent feeding operation) after the closing of No. 5, "YE" is determined at step S16.
In step S29, the water supply valve 31 is turned off after a lapse of a predetermined time, in this case, one second after the lid 16 of the detergent outlet 15 is closed (step S30), and waits for a restart instruction (step S30). Step S31). Then, when a restart instruction is given, the water supply valve 31 is turned on to restart the water supply operation (step S32), and thereafter, the flow returns to step S17, and the water supply operation is continued until the set water level is reached.

According to the first embodiment, the following effects can be obtained. During detergent feeding operation (3rd stage)
In the case where there is an interruption, first, the detergent feed motor 21 is turned off to stop the detergent feed operation, and then the detergent feed operation is delayed to close the detergent outlet 15, so that the detergent is fed between the detergent outlet 15 and the lid 16. Pinching can be prevented. In addition, after the detergent outlet 15 is closed, the water supply operation is stopped with a delay from that time, so that all the detergent dropped into the detergent dropping portion 23 can be flushed with water, and the detergent remains in the detergent dropping portion 23. Can be prevented.

In the case of restarting in this case, if the detergent has been fed halfway before the interruption, the detergent is fed only for the remaining feeding time. As a result, a set amount of detergent can be introduced, so that the detergent is not used excessively.

If there is an interruption after the end of the detergent feeding operation (fourth and fifth stages), the detergent outlet 15 is closed by the lid 16.
After closing the water supply valve 31 to stop the water supply operation,
Since the detergent input operation is terminated, useless operations such as restarting the detergent input operation at the time of resuming can be prevented.

If there is an interruption before the detergent feeding operation (first and second stages), the detergent outlet 15 is immediately closed, and there is no problem even if the water supply operation is stopped. Can be.

In the first embodiment described above, the order of the first and second steps before the detergent feeding operation can be reversed. That is, the water supply operation may be started in the first stage, and the detergent outlet may be opened in the second stage.

FIG. 9 shows a second embodiment of the present invention. The second embodiment differs from the first embodiment in the following points. That is, the detergent outlet 1 in step S3
If there is an instruction to interrupt at the first stage (before the detergent feeding operation) after the release of No. 5, the process proceeds to step S33 according to "YES" in step S4, and waits until there is an instruction to restart. Therefore, in this case, the lid 16 of the detergent outlet 15 is not kept closed but is kept open. When there is an instruction to restart, the process returns to step S5 according to "YES".

If there is an instruction to interrupt at the second stage (before the detergent feeding operation) after the water supply valve 31 is turned on in step S6, the process proceeds to step S7 according to "YES" and step S7 is performed.
34, the water supply valve 31 is turned off to stop the water supply operation, and waits for a restart instruction (step S3).
5). Therefore, also in this case, the lid 16 of the detergent outlet 15 is not closed and is kept open. Then, when there is an instruction to restart, the water supply valve 31 is turned on, and then step S
Return to 8.

If an instruction for interruption is given in the third stage (during the detergent feeding operation) after the detergent feed motor 21 is turned on in step S9, the process proceeds to step S37 according to "YES" in step S10, and the detergent is transferred. The feed motor 21 is turned off to stop the detergent feeding operation. Also at this time, the time when the detergent feeding operation is executed is stored. Thereafter, the process waits for a predetermined time, in this case, 2 seconds (step S3).
8) When 2 seconds have elapsed, the water supply valve 31 is turned off to stop the water supply operation (step S39), and thereafter, the flow waits until a restart instruction is issued (step S40). Therefore, also in this case, the lid 16 of the detergent outlet 15 is not closed and is kept open. When there is an instruction to resume, "Y
Move to step S6 according to “ES”. Again,
The detergent feeding time after the restart is such that the detergent feed is executed for the remaining time of the time executed before the interruption.

In the second embodiment as well, if there is an interruption during the detergent feeding operation, the detergent feeding motor 21 is turned off to stop the detergent feeding operation, and thereafter the water feeding operation is stopped after a delay. Therefore, all of the detergent dropped into the detergent dropping portion 23 can be flushed with water, and the detergent can be prevented from remaining in the detergent dropping portion 23. In this case, by leaving the lid 16 of the detergent outlet 15 in the open state, it is not necessary to perform an operation of opening the lid 16 again at the time of resuming, and the resuming can be performed in a short time.

Further, even if there is an interruption before the detergent feeding operation, the lid 16 of the detergent outlet 15 is kept open so that it is not necessary to perform the operation of opening the lid 16 again at the time of restart. It will be possible to resume in that short time.

The present invention is not limited to the above embodiments, but can be modified or expanded as follows. In each of the above-described embodiments, the interruption of the detergent input operation is performed by a user's temporary stop operation. In this case, a non-volatile memory is provided in the control device 50, and if there is an interruption due to a power failure during the detergent input operation, the non-volatile memory includes:
The stage at which the power failure occurred is stored. And
After the recovery from the power failure, the same control as that at the time of the interruption is performed, and a restart instruction is waited.

As the washing machine, a drum-type washing machine having a horizontal or oblique axis drum may be used instead of the vertical tub 3.

[0056]

As is apparent from the above description, according to the present invention, if there is an interruption in the middle of the detergent charging operation, control according to the stage of the detergent charging operation at the time of the interruption can be performed. Therefore, it is possible to prevent the detergent from remaining.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention and is a diagram for explaining a basic operation of a detergent injection operation and an operation in a case where there is an interruption.

FIG. 2 is an overall perspective view.

FIG. 3 is a longitudinal sectional front view of a main part.

FIG. 4 is a plan view of a main part with a back cover removed.

FIG. 5 is a block diagram showing an electrical configuration.

FIG. 6 is a time chart showing a basic operation of a detergent input operation.

FIG. 7 is a flowchart showing the control contents of the control device;

FIG. 8 is a flowchart showing control contents of a control device, part 2

FIG. 9 is a view corresponding to FIG. 7, showing a second embodiment of the present invention.

[Explanation of symbols]

In the drawing, 3 is a washing tub, 10 is a detergent feeding device, 12 is a hopper (detergent storage unit), 14 is a detergent sending body (detergent sending means), 15 is a detergent outlet, 16 is a lid, and 21 is a detergent feeding motor (detergent). Feeding means), 23 is a lower part of the detergent, 25 is a lid opening / closing motor (lid opening / closing means), 31 is a water supply valve (water supply means), 3
2 denotes a water injection case (water supply means), and 50 denotes a control device (control means).

Claims (6)

[Claims] 1. A washing tub, a detergent reservoir capable of storing a plurality of detergents, a lid for opening and closing a detergent outlet connected to the detergent reservoir, a lid opening / closing means for opening and closing the lid, Detergent feeding means for sending the detergent in the detergent reservoir through the detergent outlet to the detergent fountain; water supply means for supplying water to the washing tub through the detergent fountain; and the lid opening / closing means and detergent feeding means during a detergent input operation. And control means for controlling the operation of the water supply means in a predetermined order and supplying the detergent to the washing tub together with the water. The control means, when there is an interruption during the detergent input operation, the interruption A washing machine characterized in that the control mode is changed according to the stage of the detergent input operation at the time. 2. The detergent feeding operation by the control means is set by opening the lid by the lid opening / closing means to open the detergent outlet, causing the water supply means to perform a water supply operation, and then causing the detergent feed means to perform a feed operation. A quantity of detergent is sent to the lower part of the detergent, and then the lid is opened and closed by the lid opening / closing means to close the detergent outlet, and thereafter the water supply operation by the water supply means is stopped. If there is an interruption during the detergent feeding operation, the detergent feeding operation by the detergent feeding means is stopped, and then the lid is opened and closed by the lid opening / closing means to close the detergent outlet, and then the water supply operation by the water supply means is performed. The washing machine according to claim 1, wherein the washing machine is stopped. 3. When the detergent feeding operation is interrupted by the detergent feeding device, the control device closes the detergent outlet with a lid, stops the water feeding operation by the water feeding device, and ends the detergent feeding operation. The washing machine according to claim 2, characterized in that: 4. The control means according to claim 2, wherein when there is an interruption before the detergent feeding operation by the detergent feeding means, the detergent outlet is closed by the lid and the water supply operation by the water supply means is stopped. The washing machine as described. 5. The detergent feeding operation by the control means is preset by opening the lid by the lid opening / closing means to open the detergent outlet, causing the water supply means to perform a water supply operation, and then causing the detergent feed means to perform a feed operation. Of the detergent to the lower part of the detergent, then closing the lid by the lid opening / closing means to close the detergent outlet, and then stopping the water supply operation by the water supply means. If there is an interruption due to a pause operation during the detergent feeding operation, the detergent feeding operation by the detergent feeding means is stopped, and thereafter, the water supply operation by the water supply means is stopped, and the detergent outlet is kept open. The washing machine according to claim 1, wherein: 6. The control device according to claim 1, wherein, when the detergent input operation is resumed after the interruption, if the detergent has been fed halfway before the interruption, the control means performs the detergent feeding for the remaining input. The washing machine according to 1.