JP3275565B2 - Fully automatic washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic washing machine for performing rinsing while supplying water to a laundry with a shower.

[0002]

2. Description of the Related Art Conventionally, this type of fully automatic washing machine has been disclosed in FIG.
And FIG. Hereinafter, the configuration will be described.

[0003] As shown in FIG.
It is rotatably provided in the water receiving tank 2 and is driven by the motor 3. The water supply valve 4 includes the first water supply valve 4a and the second water supply valve 4a.
The first water supply valve 4a supplies water to the washing and dewatering tub 1 via an internal hose 5a, and the second water supply valve (water supply means) 4b supplies a shower via an internal hose 5b. The shower nozzle 6 communicates with the nozzle 6 to supply the laundry in the washing and dewatering tub 1 with a shower.

[0004] A drain valve 7 is provided at the bottom of the water receiving tank 2, and the washing water in the water receiving tank 2 is discharged via a drain hose 8. The washing tub lid 9 has a folding structure having a hinge at the center, and covers the upper surface of the washing and dewatering tub 1. The lid open detecting means 10 includes a reed switch 12 fixed to the outer frame 11.
And a magnet 13 fixed to the washing tub lid 9 so as to face the reed switch 12.

[0005] The control device 14 is configured as shown in FIG. 12, and the control means 15 controls each step of washing, rinsing, and dehydration sequentially, and performs at least one of before and after dehydration in the rinsing step. A shower rinsing step is provided in which water is supplied in a shower shape while rotating the washing / dewatering tub 1. The power switching means 16 receives the signal from the control means 15 and controls the motor 3, the water supply valve 4, and the drain valve 7. The operation display means 17 is for setting and displaying the contents of the washing operation. The rotation speed detecting means 18 detects the rotation speed of the washing and spin-drying tub 1 by detecting the rotation speed of the motor 3. 19 is an AC power supply, 20 is a phase advance capacitor of the motor 3, and 21 is a power switch.

The operation of the above configuration will be described with reference to FIG. 13. After the washing step 70 in step 70 and the draining step in step 71, a shower rinsing step is started. Here, first, the presence or absence of shower water supply is determined in step 72, and if necessary, the second water supply valve 4b is operated in step 73 to supply shower water from the shower nozzle 6.

[0007] Thereafter, the motor 3 is turned on in step 74, and is maintained for the on time in step 75. afterwards,
At step 76, the motor 3 is turned off, and at step 77, the motor 3 is maintained for the off time. In step 78, the end of the shower rinsing process is determined. If the end cannot be completed yet, the process returns to step 72 to repeat shower water supply, turning on / off the motor 3, and rotating the washing / dewatering tub 1 as shown in FIG. Perform a shower rinse while gradually raising the pressure.

[0008]

In such a conventional fully automatic washing machine, when the lid opening is detected by the lid opening detecting means 10, the washing and spin-drying tub 1 is braked and the rotation is stopped. At this time, there is a problem that even if the shower rinsing process is continued again after detecting the lid closing, the operation is performed at a rotational speed far from a predetermined rotational speed. That is, when the lid is detected at the point A in FIG. 14 and the rotation of the washing and spin-drying tub 1 is stopped, as shown in FIG.
00 rpm), which is very low.
In this case, there is a problem that the rinsing performance by performing shower water supply cannot be secured.

[0009] Similarly, when a temporary stop input is given by the operation display means, the washing and dewatering tub 1 is braked to stop the rotation. At this time, there is also a problem that, even if the pause state is released and the shower rinsing process is continued again, the operation is performed at a rotation speed far from a predetermined rotation speed.

[0010] Further, when the rotation speed detecting means for detecting the rotation speed of the washing and dewatering tub breaks down, the rotation speed cannot be accurately detected, and there is a problem that the rotation speed is continually increased. .

Further, when solving the above problems, there is a problem that the processing becomes too complicated. Also,
Even if the washing and spin-drying tub 1 is temporarily stopped, there is a section in which the rinsing performance is not affected even if the rinsing performance is not returned to a predetermined rotation speed. There is also a problem that the washing time is unnecessarily increased by performing the process of returning to the predetermined number of revolutions even in the section.

The present invention has been made to solve the above-mentioned problem, and secures the rinsing performance by returning to a predetermined number of rotations even if the washing and dewatering tub is temporarily stopped by detecting the opening of the lid during shower rinsing. The first purpose is to do so.

[0013] Further, even if an input of a pause is given by the operation display means during the shower rinsing and the washing and dewatering tub is paused, the rinsing performance is ensured by returning to a predetermined rotation speed. The purpose is.

It is a third object of the present invention to continue the shower rinsing process forcibly interrupted when the predetermined rotation speed cannot be detected within the predetermined time so that the rotation speed is not continuously increased. I have.

Further, when the washing and dewatering tub is temporarily stopped during the shower rinsing, the section for returning to a predetermined number of revolutions is limited, so that the processing is simplified while the rinsing performance is secured, and the washing time is unnecessarily reduced. A fourth object is to prevent the increase.

[0016]

According to the present invention, in order to achieve the first object, a water supply means communicating with a shower nozzle for supplying water to the washing and dewatering tub in a shower shape, and driving the washing and dewatering tub. A motor, a rotation speed detecting means for detecting the rotation speed of the washing and dewatering tub, a lid open detecting means for detecting the opening and closing of the lid, and a control means for sequentially controlling each process of washing, rinsing, and dehydrating, The control means is provided with a shower rinsing step for supplying water in a shower shape while rotating the washing and dewatering tub at least one of before and after dehydration of the rinsing step, and the shower rinsing step is interrupted by the lid open detecting means. In this case, the first problem solving means is that the shower rinsing process is continued after the rotation speed of the washing and dewatering tub is increased to a predetermined rotation speed before returning to the operation.

Further, in order to achieve the second object, water supply means communicating with a shower nozzle for supplying water to the washing and dewatering tub in a shower shape, a motor for driving the washing and dewatering tub, Rotation speed detection means for detecting the rotation speed of, and setting the operation content, display operation display means, comprising a control means for sequentially controlling each step of washing, rinsing, dehydration,
The control means is provided with a shower rinsing step of supplying water in a shower shape while rotating the washing and dewatering tub on at least one of before and after dehydration of the rinsing step, and the shower rinsing step is performed by input to the operation display means. The second problem-solving means is that when the operation is interrupted, the number of revolutions of the washing and dewatering tub is increased to a predetermined number of revolutions before returning to the operation, and then the shower rinsing process is continued.

Further, in order to achieve the third object, the control means of the first or second means for solving the above problems may be arranged so that the number of revolutions of the washing and dewatering tub after the interruption of the shower rinsing step is reduced to a predetermined number of revolutions. The third problem-solving means is that when the predetermined rotation speed cannot be detected within the predetermined time when the temperature is raised to the predetermined value, the shower rinsing process that has been forcibly interrupted is continued.

Further, in order to achieve the fourth object, the control means of the first to third means for solving the problems may be arranged so that the number of revolutions of the washing and dewatering tub after the interruption of the shower rinsing step is set immediately before the shower water supply. The fourth problem-solving means is to increase the rotation speed to a predetermined value.

[0020]

According to the first aspect of the present invention, there is provided:
Even if the lid is opened at an unexpected timing by the user and the rotation speed of the washing and dewatering tub is reduced, after starting up to the predetermined rotation speed, it is possible to return to the process before opening the lid, The rotation speed, rotation time and shower water supply time can be obtained. As a result, even if the lid is unexpectedly opened, the improvement of the rinsing performance by the shower rinsing can be maintained.

Further, according to the second means for solving the problem, it is possible to obtain a predetermined number of rotations, a rotation time, and a shower water supply time even when an unexpected stop input is made by the user. As a result, the improvement of the rinsing performance by the shower rinsing can be maintained even in the case of an unexpected pause input.

Further, according to the third means for solving the problem, the shower rinsing process proceeds without any trouble even if a failure of the rotation speed detecting means or an imbalance of the laundry occurs and the rotation speed does not rise sufficiently. be able to. Therefore, the phenomenon that the shower rinsing process does not proceed can be avoided.

Further, according to the fourth means for solving the problem, it is possible to simplify the processing while securing the rinsing performance,
It is possible to prevent the washing time from being unnecessarily increased.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG. The components having the same configuration as the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the figure, the control means 22 comprises:
Rinsing and dehydration steps are sequentially controlled, and at least one of before and after the dehydrating step of the rinsing step is provided with a shower rinsing step for supplying water in a shower while rotating the washing and dewatering tub 1. If the shower rinsing process is interrupted, the washing and dewatering tub 1
After the number of revolutions has been increased to a predetermined number of revolutions, the shower rinsing process is continued.

The operation of the above configuration will be described with reference to FIGS. 2 and 3. First, the operation is sequentially performed from step 70 according to the flowchart of FIG. 13, and during the shower rinsing process from step 72 to step 78, When the lid opening is detected based on the information from the lid opening detecting means 10 at the point A of 3, the processing moves to the flowchart of FIG.

In the flowchart of FIG.
At step 31, the motor 3 is turned off. At step 31, it is determined whether the lid is open.
Repeat 31. In FIG. 3, the rotation speed is 0 rpm in this state. After the lid open detecting means 10 detects that the washing tub lid 9 is closed, the motor 3 is turned on in step 32, and in step 33, step 32 is repeated for the ON time. Next, at step 34, the motor 3
Is turned off, and step 34 is repeated by step 35 for the off time.

At this stage, it is determined whether or not a predetermined rotation speed has been reached by the input from the rotation speed detecting means 18 (step 3).
A check is made at 6 and if the predetermined number of revolutions has been reached, the process returns to the shower rinsing stroke interrupted by opening the lid. In FIG. 3, point B indicates this state.

As described above, according to the present embodiment, when the shower rinsing process is interrupted by the lid open detecting means 10,
Before returning to the operation, the number of revolutions of the washing and dewatering tub 1 is increased to a predetermined number of revolutions, and then the shower rinsing process is continued. Therefore, even when the lid is detected by the information from the lid open detecting means 10, The second shower water supply can be performed at a predetermined rotation speed, and the improvement of the rinsing performance by the shower rinsing can be maintained.

Next, a second embodiment of the present invention will be described. The control means 22 in FIG.
When the shower rinsing process is interrupted by the input to 7, the rotation speed of the washing and dewatering tub 1 is increased to a predetermined rotation speed before returning to the operation, and then the shower rinsing process is continued. Other configurations are the same as those of the first embodiment.

The operation of the above configuration will be described with reference to FIG. 4. In the same manner as in the first embodiment, the operation is sequentially performed from step 70 according to the flowchart of FIG. 13, and the shower rinsing from step 72 to step 78 is performed. When a pause is instructed by an input from the operation display means 17 during the process, the process moves to the flowchart of FIG.

In the flowchart of FIG.
It is determined whether or not the restart of the operation is instructed (the start switch is pressed) in step 3 until the instruction is issued.
Repeat steps 0 and 37. After the restart of the operation is instructed, the motor 3 is turned on in step 32, and step 32 is repeated in step 33 for the ON time. Next,
At step 34, the motor 3 is turned off, and at step 35, step 34 is repeated for the off time.

At this stage, it is determined whether or not a predetermined rotation speed has been reached by the input from the rotation speed detecting means 18 (step 3).
Checked by 6, if it has reached the predetermined number of revolutions, return to the shower rinsing stroke interrupted by opening the lid.

As described above, according to the present embodiment, when the shower rinsing process is interrupted by the input to the operation display means 17, after the rotation speed of the washing and dewatering tub 1 is increased to a predetermined rotation speed before returning to operation. Since the shower rinsing process is continued, the second shower water supply can be performed at a predetermined rotation speed even when a pause is instructed by an input from the operation display unit 17, and the rinsing performance by the shower rinsing is improved. Can be maintained.

Next, a third embodiment of the present invention will be described. The control means 22 in FIG. 1 forcibly increases the rotation speed of the washing and dewatering tub 1 to a predetermined rotation speed after the shower rinsing process is interrupted, and cannot detect the predetermined rotation speed within a predetermined time. The suspended shower rinsing process is continued. Other configurations are the same as those of the first embodiment.

The operation of the above configuration will be described with reference to FIG. 5. In the same manner as in the first embodiment, the operation is performed in order from step 70 according to the flowchart of FIG. When the lid is detected based on information from the lid open detecting means 13 during the rinsing process, the processing moves to the flowchart of FIG.

In the flowchart of FIG.
It is determined whether the lid is being opened and steps 30 and 31 are repeated until the washing tub lid 9 is closed. Lid open detection means 1
After detecting that the washing tub lid 9 is closed by 0, the on / off repetition counter is cleared to 0 in step 38, the motor 3 is turned on in step 32, and in step 33, the on time is turned on in step 32. repeat. Next,
In step 34, the motor 3 is turned off, and in step 35, step 34 is repeated for the off time.

Next, when the off time of the motor 3 has elapsed in step 35, the process proceeds to step 39, in which the on / off repetition counter is incremented by one, and in step 40, the number of on / off repetitions is checked. If the number of repetitions is less than the predetermined number (for example, eight), step 36
Then, it is checked whether or not the input from the rotation speed detecting means 18 has reached a predetermined rotation speed. If the rotation speed has reached the predetermined rotation speed, the process returns to the shower rinsing process interrupted by opening the lid. However, the number of repetitions is a predetermined number (8
If not, step 36 is not performed and the process returns to the shower rinsing process interrupted by forcibly opening the lid.

As described above, according to this embodiment, when the rotation speed of the washing and dewatering tub 1 after the interruption of the shower rinsing process is increased to the predetermined rotation speed, the predetermined rotation speed cannot be detected within the predetermined time. In such a case, the shower rinsing process, which was forcibly interrupted, is continued.
It is possible to avoid problems such as a failure to return to the shower rinsing process for a long time, such as when the 8 has failed.

In the above-described embodiment, the case where the lid opening is detected based on the information from the lid opening detecting means 13 during the shower rinsing step has been described. However, the shower rinsing step is interrupted by the input to the operation display means 17. It goes without saying that the same applies to the case.

Next, a fourth embodiment of the present invention will be described. The control means 22 in FIG. 1 is configured to increase the rotation speed of the washing and dewatering tub 1 to a predetermined rotation speed immediately before the shower water supply after the interruption of the shower rinsing process. Other configurations are the same as those of the first embodiment.

The operation will be described with reference to FIGS. 6 to 8 in the above configuration. After the washing step in step 41 and the draining step in step 42, a shower rinsing step is started. During this shower rinsing stroke, the lid opening detecting means 10
If the lid opening is detected based on the information from, the process moves to the flowchart of FIG.

In the flowchart of FIG.
, The motor 3 is turned off, and it is determined in step 61 whether the lid is being opened. Steps 60 and 61 are repeated until the washing tub lid 9 is closed. Immediately after detecting that the lid is closed, the operation returns to the shower rinsing process interrupted by opening the lid.

In the shower rinsing process of the flowchart of FIG. 6, the presence or absence of shower water supply is determined in step 43. If shower water needs to be supplied, it is determined in step 44 whether the rotation speed of the washing / dewatering tub 1 has reached a predetermined rotation speed. If the number of revolutions has not reached the predetermined number of revolutions, the process proceeds to step 45, where the number of revolutions is increased, and as shown in steps 52 to 59 of FIG. Let it. This is almost the same as that of the first embodiment where the predetermined number of revolutions is detected, and therefore the description is omitted.

When the rotation speed of the washing and dewatering tub 1 has increased to a predetermined rotation speed in step 45 of FIG. 6, the second water supply valve 4b is turned on in step 46 to supply shower water. Then, in step 47, the motor 3 is turned on, and in step 4
At 8, the ON time is maintained. Thereafter, the motor 3 is turned off in step 49, and is maintained for only the off time in step 50. In step 51, the end of the shower rinsing process is determined. If the end cannot be completed yet, the process returns to step 43 to repeat shower water supply and turning on / off the motor 3.

The above operation is shown in FIGS. 9 and 10 in terms of the number of rotations of the washing and dewatering tub. FIG. 9 is a characteristic diagram when the lid opening is detected at the point B, and FIG. 10 is a characteristic diagram when the lid opening is detected at the point C. 9 and 10
In FIG. 9, shower water is supplied after reaching the predetermined rotation speed in FIG. 9 because the rising portion corresponds to a portion that detects whether the rotation speed has reached the predetermined rotation speed. , The operation is continued from a low rotation speed. However, since the shower water is supplied at a predetermined rotation speed, there is no adverse effect on the rinsing performance.

As described above, according to the present embodiment, the rotation speed of the washing and dewatering tub 1 after the interruption of the shower rinsing process is increased to a predetermined rotation speed immediately before the shower water supply. The processing can be simplified while securing, and the washing time can not be unnecessarily increased.

[0048]

As described above, the present invention provides a water supply means communicating with a shower nozzle for supplying water to the washing and dewatering tub in a shower form, a motor for driving the washing and dewatering tub, and a rotation of the washing and dewatering tub. Number of rotations detecting means for detecting the number, lid open detecting means for detecting the opening and closing of the lid, and control means for sequentially controlling each step of washing, rinsing, dehydration, the control means, before the dehydration of the rinsing step A shower rinsing step of supplying water in a shower while rotating the washing and dewatering tub is provided on at least one of the washing and dewatering tubs, and when the shower rinsing step is interrupted by the lid open detecting means, the washing and dewatering is performed before the operation returns. Since the shower rinsing process is continued after the rotation speed of the water tank has been increased to a predetermined rotation speed, the lid can be opened at an unexpected timing by the user, and the washing and dewatering can be performed. Even when the rotational speed is reduced, it is possible to obtain a rotation time and the shower water supply time and a predetermined rotational speed can be maintained to improve the rinsing performance by rinsing shower.

Further, a water supply means communicating with a shower nozzle for supplying water to the washing and dewatering tub in a shower form, a motor for driving the washing and dewatering tub, and a rotation speed detecting means for detecting the rotation speed of the washing and dewatering tub Setting operation contents, display operation display means, and control means for sequentially controlling each step of washing, rinsing, and dehydration, wherein the control means performs the washing at least one of before and after dehydration in the rinsing step. When a shower rinsing step for supplying water in a shower while rotating the spin-drying tub is provided, and the shower rinsing step is interrupted by an input to the operation display means, the rotation speed of the washing-and- spin-drying tub is set to a predetermined value before returning to operation. Since the shower rinsing process is continued after rising to the rotation speed, an unexpected pause input by the user occurs, and even if the rotation speed of the washing and dewatering tub decreases, It can be obtained rotation time and the shower water supply time and the rotational speed of the constant-street can be maintained to improve rinsing performance by rinsing shower.

Further, the control means forcibly increases the rotation speed of the washing and dewatering tub after the interruption of the shower rinsing process to the predetermined rotation speed, and if the predetermined rotation speed cannot be detected within the predetermined time, the control means is forcibly applied. Since the suspended shower rinsing process is continued, the shower rinsing process can proceed without any trouble even if the rotation speed detecting means fails or the laundry is unbalanced, and the shower rinsing process does not proceed. The phenomenon can be avoided.

Further, the control means increases the rotation speed of the washing and dewatering tub after the shower rinsing process is interrupted to a predetermined rotation speed immediately before the shower water supply, so that the processing can be performed while ensuring the rinsing performance. It can be simplified and the washing time can not be unnecessarily increased.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram of a fully automatic washing machine according to a first embodiment of the present invention.

FIG. 2 is an operation flowchart of a main part of the fully automatic washing machine.

FIG. 3 is a characteristic diagram showing the number of revolutions of a washing and dewatering tub during shower rinsing of the fully automatic washing machine.

FIG. 4 is an operation flowchart of a main part of a fully automatic washing machine according to a second embodiment of the present invention.

FIG. 5 is an operation flowchart of a main part of a fully automatic washing machine according to a third embodiment of the present invention.

FIG. 6 is an operation flowchart of a main part of a fully automatic washing machine according to a fourth embodiment of the present invention.

FIG. 7 is an operation flowchart of a rotation speed increasing process of the fully automatic washing machine.

FIG. 8 is an operation flowchart of the fully automatic washing machine when a lid is detected.

FIG. 9 is a characteristic diagram showing an example of the number of revolutions of a washing and dewatering tub during shower rinsing of the fully automatic washing machine.

FIG. 10 is a characteristic diagram showing another example of the rotation speed of the washing and dewatering tub during shower rinsing of the fully automatic washing machine.

FIG. 11 is a longitudinal sectional view of a conventional fully automatic washing machine.

FIG. 12 is a block circuit diagram of the fully automatic washing machine.

FIG. 13 is an operation flowchart of a main part of the fully automatic washing machine.

FIG. 14 is a characteristic diagram showing an example of the number of revolutions of a washing and dewatering tub during shower rinsing of the fully automatic washing machine.

FIG. 15 is a characteristic diagram showing another example of the rotation speed of the washing and dewatering tub during shower rinsing of the fully automatic washing machine.

[Explanation of symbols]

 Reference Signs List 3 Motor 4b Second water supply valve (water supply means) 10 Lid open detection means 18 Revolution detection means 22 Control means

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kawa ▲ saki ▼ 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-58-159793 (JP, A) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) D06F 33/02

Claims (4)

(57) [Claims] 1. A water supply means communicating with a shower nozzle for supplying water to a washing and dewatering tub in a shower shape, a motor for driving the washing and dewatering tub, and a rotation speed detecting means for detecting a rotation speed of the washing and dehydration tub Lid open detecting means for detecting the opening and closing of the lid, washing, rinsing, comprising a control means for sequentially controlling each step of dehydration, the control means, at least one of before and after dehydration of the rinsing step, When a shower rinsing step of supplying water in a shower while rotating the washing and dewatering tub is provided, and the shower rinsing step is interrupted by the lid open detecting means, the rotation speed of the washing and dewatering tub is set to a predetermined number of rotations before returning to operation. A fully automatic washing machine in which the shower rinsing process is continued after the number has risen to a certain number. 2. A water supply means communicating with a shower nozzle for supplying water to the washing and dewatering tub in a shower shape, a motor for driving the washing and dewatering tub, and a rotation speed detecting means for detecting a rotation speed of the washing and dewatering tub Setting operation contents, display operation display means, and control means for sequentially controlling each step of washing, rinsing, and dehydration, wherein the control means performs the washing at least one of before and after dehydration in the rinsing step. When a shower rinsing step for supplying water in a shower while rotating the spin-drying tub is provided, and the shower rinsing step is interrupted by an input to the operation display means, the rotation speed of the washing-and- spin-drying tub is set to a predetermined value before returning to operation. A fully automatic washing machine in which the shower rinsing process is continued after the rotation speed has been increased. 3. The control means forcibly increases the rotation speed of the washing and dewatering tub after the interruption of the shower rinsing process to the predetermined rotation speed, if the predetermined rotation speed cannot be detected within a predetermined time. The fully automatic washing machine according to claim 1 or 2, wherein the suspended shower rinsing process is continued. 4. The apparatus according to claim 1, wherein the control means increases the rotation speed of the washing and dewatering tub after the shower rinsing process is interrupted to a predetermined rotation speed immediately before the shower water supply. Fully automatic washing machine as described.