JPS6234596A - Dehydration control of dehydration washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a dehydration-combined laundry in which, when an imbalance is detected during the dehydration process, an unbalance correction process consisting of water supply, stirring, and drainage is performed, and dehydration is performed again. Concerning a dewatering control method for a machine.

[Technical Background of the Invention] Conventionally, in a washing machine that is equipped with a rotating tank for both washing and dehydration and an agitator inside the rotating tank to perform washing and dehydration, abnormal vibrations of the rotating tank during the spin-drying process have been reported. That is, an unbalance is detected, and when an unbalance is detected, an unbalance correction process consisting of water supply, stirring, and drainage is performed, and the dehydration is repeated again.

CV! Problems with iI technology] However, in the above case, the unbalance correction process in the dewatering process is performed with a constant water supply amount and with stirring U! Since it is performed in a uniform correction mode with a constant f interval, the unbalanced mouth (
@If the bias of the dehydrated material in the transfer tank ω) is large and the unbalance correction effect in the first unbalance correction process is low, the unbalance correction effect will not be much improved in the next unbalance correction process, and in the end, The number of repetitions of the unbalance correction process increases, and there is a possibility that the time required for the dehydration process becomes excessively long.

In this case, it is thought that such a problem can be prevented by setting the water supply foot in the above correction mode to human and the stirring time to a long time. When the water supply m is small, the amount of water supplied is excessive and the stirring time is also excessive, causing the problem that the amount of water, time, and electricity are wasted.

[Objective of the Invention] The present invention has been made in view of the above circumstances, and its purpose is to provide a dehydration system for both dehydration and washing, which can reliably eliminate the imbalance of dehydrated materials in a rotary tank with a correction mode that does not have excess or deficiency. To provide a control method.

[Summary of the Invention] The present invention includes an unbalance detection device that detects an unbalance group when an unbalance is detected, and a correction mode for unbalance correction processing according to an unbalance amount detection value by the unbalance amount detection device. to change the nakedness,
Thus, the unbalance can be resolved using an appropriate correction mode according to the unbalance.

Explain with reference to. First, in FIG. 2, reference numeral J3 denotes an outer box, inside which a water receptacle elastically supports a tank 2 via a suspension mechanism 3. Reference numeral 4 denotes a rotating tfI for washing and dewatering, which is disposed in the water receptacle 2, and is rotated at high speed by a drive unit 6 equipped with a motor 5 during dewatering. Reference numeral 7 denotes a container-shaped agitator disposed within the rotating tank 4, which is normally rotated forward and backward by the drive unit 6 during washing and rinsing. In addition, 8 is a water receptacle and a drain pipe connected to the bottom of the tank 2, and 9 is a drain valve.

Now, reference numeral 10 denotes an operation control device consisting of a microcomputer, and this is provided on the back surface of the front panel 1b of the upper cover 18 of the outer box 1. On the other hand, numeral 11 is an unbalance amount detection device provided on the upper cover 1a, which also serves as an unbalance detection switch for detecting the presence or absence of unbalance. The unbalance city detection device 11 is composed of a switch mechanism 12, a detection lever 13, and a detection signal output circuit 14 (see FIG. 4). is movable contact 1
5a, and a plurality of (in this case three) movable contact plates 15.
A fixed contact base 1 having fixed contacts 16a to 16c of
6, and the detection lever 13 has a movable contact plate 15.
The water receiver is positioned so as to span the outer surface of the upper end of the tank 2 from the lower part thereof, and is rotatably supported. The detection lever 13 detects the abnormal vibration caused by the unbalance of the rotary tank 4 during dewatering through the tank 2, and detects the unbalance. The movable contact plate 15 is rotated in the direction of the arrow, and the movable contact plate 15 is displaced upward. Therefore, the movable contact 15a changes from the fixed contacts 16a to 16 depending on the amount of rotation of the detection lever 13.
Based on the conduction, that is, the ON signals Swt to Sw3 (see FIG. 4), the detection signal output circuit 14 outputs imbalance detection signals Spl to S in different output modes (for example, different numbers of output pulses). .

3 (see FIG. 4) are outputted as different unbalance amount detection values and given to the dehydration control circuit 10. In FIG. 4, 17 is a water supply valve, 18 is a drive circuit for driving the water supply valve 17, 19 is a drive circuit for driving the motor 5, and 20 is a drive circuit for driving the drain valve 9. The above-mentioned operation control device 10 controls the washing process and the dehydration process, and in particular, in the dehydration process, whenever an imbalance is detected, an unbalance correction process is performed. 17 is opened to supply water into the rotary tank 4, then the stirring body 7 is rotated intermittently to stir the material to be dehydrated, and after Q, the drain valve 9 is opened to drain water.

Now, to explain in detail the control related to dehydration, when the dehydration process is started, as shown in FIG. will be done.゛After this, in step b, a drive signal Sd3 (see Fig. 4) is output to the drain valve 9 to open the drain valve 9, and at the same time, in step C, a drive signal Sd2 is output to the motor 5. As a result, the rotating tank 4 is driven to rotate at high speed. In this case, the detection device 11 is open to the sweetfish/balance, and the unbalance detection device 11 sequentially sends an unbalance detection signal 5li1.
The presence or absence of S1 to S1]3 is provided to the operation control device 10.

Therefore, in step d, it is determined whether or not there is an input of imbalance detection slope RS pl to Sp3 from the detection device 11, and it is determined whether or not imbalance is detected. If the unbalance detection gradient g3pl to 5l)3 is not output from the device 11, as can be seen from step e and step ``, the dewatering execution time is set to run 1, and the dehydration execution time is changed to the dehydration setting time amount. After passing, the process moves to step g according to rYESJ of step [, and in this step Q, the output of the drive signal Sd2 is stopped and the rotation of the rotating tank 4 is stopped.
Next, in step h, the output of the drive signal Sd3 is stopped after a predetermined period of time, and the drain valve 9 is closed, thereby completing the dewatering process. By the way, during this dehydration process, when an imbalance is detected in step d, the process moves to step i according to rYEsJ in step d, and in step i, the output of the drive signal Sd2 is stopped and the rotation of the rotating tank 4 is stopped. be done.

Next, in step J, it is determined whether the unbalance detection signal is Spl or Spz, and as can be seen in step J, if the unbalance detection signal is S01, the first correction mode of the unbalance correction process is selected. The correction mode M1 is set, and the unbalance detection signal is 5t12.
, the second modification mode M is used as the modification mode.
2, and when the unbalance detection signal is 31)3, the third correction mode M3 is set as the correction mode. Here, to describe the mode contents of these first to third correction modes M1 to M3, the first correction mode Mt sets the water supply suspension setting value W to Wt and the stirring time setting to 11.
K is Kt, and the intermittent driving time value R is R1, and the second correction mode M2 is the first correction [-do M! The multi-value W of
1. W2, ni2, and R2, which are larger than Kl and R1, respectively
In addition, the third correction mode M3 sets the multi-values to W3, which are respectively larger than the multi-values of the second correction mode M2.
, R3. After this step, the imbalance correction process Q is executed. In this unbalance correction process Q, first, in step 1, the drive signal Sd3
is output, the drain valve 9 is closed, and step m
A drive signal Sdl is outputted to the water supply valve 17, and water is supplied until the water supply m reaches the water supply setting ff1W. In this case, if the first correction mode Ml is set in the step, the content value of the water supply a setting value W is Wl,
Further, if the second correction mode M2 is set, the content value is W2, and if the third correction mode M3 is set, the content value is W3. After this step m, the process moves to step n, and in this step n, the drive signal 5d2- is intermittently outputted to the motor 5, and the stirring body 7 is driven at the intermittent driving time setting value R and the stirring time setting value K.
Stirring is driven by . The content values of each set value R and inputted in this step n become the corresponding content values of the correction modes M1 to M3 selected and set in step n. This step n
After that, the process moves to step 0, where the drain valve 9 is opened, and then returns to step C, where dewatering is performed again.

According to this embodiment, the imbalance amount detection device 1
1, the unbalance is detected, the unbalance amount is detected, and the unbalance correction process is set in the correction mode according to the unbalance detection value (unbalance detection signal St) to 5p3) when the water supply time W is Wl. , stirring time K
a first correction mode M1 in which the intermittent driving time setting value R'/fiR1 is 1, a second correction mode M2 in which each setting value is larger than this first correction mode M1, and further each setting value is larger than the first correction mode M1; The third correction mode M3, which is larger than the second correction mode M2, is selected and set to skip the correction mode, so if the unbalance amount is large, the water supply amount and stirring By increasing the time and the amount of intermittent driving time, the unbalance correcting action is strengthened, thereby making it possible to perform unbalance correcting processing according to the amount of unbalance. As a result, unbalance correction processing can be performed reliably (
In other words, it is possible to reliably eliminate the imbalance of the dehydrated material, reduce the number of unbalance correction processes, and when the unbalance amount is relatively small, the water supply, stirring time, and intermittent Since the correction mode is changed to reduce the driving time, not only can the unbalance correction process be performed reliably, but also excess water supply amount and stirring time can be eliminated, which saves water, time, and power. You can eliminate waste such as

FIG. 5 shows a second embodiment of the invention.
In this embodiment, the configuration of the unbalance amount detection device 21 is different from that of the first embodiment.

That is, this detection device 21 includes a fixed 'ifi electrode plate 22,
In this case, this and the dielectric material are placed opposite each other through the air.
The facing distance of the flexible FIJ electrode plate 23 with respect to the fixed electrode plate 22 is changed according to the rotation of the detection lever 13, and the electrostatic charge between both electrodes &22.23 is changed. It is designed to detect the presence or absence of imbalance and the presence or absence of imbalance. According to the second embodiment, in addition to producing the same effects as the first embodiment, it is possible to obtain the unbalance detection value in a more finely divided manner.

In each of the above embodiments, when changing the correction mode, the water supply is configured to change the stirring time and the intermittent time. A plurality of bb< may be changed. or,
In each of the above embodiments, the presence or absence of unbalance and the amount of unbalance are each detected by one detection device, but the detection of the presence or absence of unbalance and the detection of the amount of unbalance are performed by separate devices. You may do it as you like.

In addition, the present invention is not limited to the above-described embodiments, and can be implemented with various modifications without departing from the scope of the invention.

[Effects of the Invention] As is clear from the above description, the present invention includes a rotating tank for both washing and dehydration, and an agitator inside the rotating tank to perform washing and dewatering, and to prevent unwinding during the dehydration process. An unbalance/excess detection device for detecting the unbalance level when detecting the unbalance, in a washing machine that performs an unbalance correcting process consisting of water supply, stirring, and draining when the balance is detected, and then performs dewatering again. Equipped with this unbalance detection device
This is a spin control method for a washing machine with a spin dry function, which is characterized by changing the correction mode of the unbalance correction process according to the detected value, and thereby corrects the imbalance of the material to be dehydrated in the rotating tub. It can be reliably resolved in the correct correction mode,
As a result, the number of unbalance correction processes can be reduced, the dewatering time can be shortened, and the amount of water supply, time, and power consumption can be eliminated, which is an excellent effect.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention.
The figure is a flowchart, Figure 2 is a vertical side view of the washing machine, Figure 3 is an enlarged vertical side view of the unbalance detection device,
FIG. 4 is a block diagram, and FIG. 5 is a perspective view of the unbalance detection device portion showing a second embodiment of the present invention. In the figure, 4 is a rotating tank, 7 is an agitator, 10 is an operation control device,
11 is an unbalance amount detection device, 12 is a switch mechanism,
13 is a detection lever, and 21 is an unbalance amount detection device. Applicant: Toshiba Tori Co., Ltd. 2 Figure 11 Unbalance amount tester shown in Figure 3

Claims (1)

[Claims] 1. A rotating tank for washing and dewatering is provided, and an agitator is provided inside this rotating tank to perform washing and dehydration, and when an imbalance is detected during the dehydration process, an unbalance correction process consisting of water supply, stirring, and drainage is performed. The washing machine is equipped with an unbalance amount detection device that detects the unbalance amount when the unbalance is detected, and the unbalance amount detection value by the unbalance amount detection device is A spin drying control method for a washing machine which also serves as a spin drying machine, characterized in that a correction mode of an imbalance correction process is changed accordingly.