JP2834852B2 - Washing machine washing method - Google Patents

Description

The present invention relates to a method for cleaning a domestic washing machine.

(B) Conventional technology As a conventional example, Japanese Patent Application Laid-Open No. 64-56096 discloses a washing machine which performs water supply control by performing water supply control corresponding to a rinsing time in order to improve a rinsing effect. I have.

(C) Problems to be solved by the invention In the conventional example, the confusingness of setting a washing course,
Alternatively, rinsing suitable for the load and the fabric could not be performed due to the inaccuracy of the manually set values.

The present invention has been made in view of the above problems, and has as its object to improve rinsing performance.

(D) Means for Solving the Problems A washing method for a washing machine according to the present invention comprises: a washing tub having a rotating wing disposed therein; a water level sensor for detecting a water level in the washing tub; A load amount detecting means for detecting a load amount, and control means for executing each process operation such as washing and rinsing based on data from the water level sensor and the load amount detecting means, wherein the control Under the control of the means, in the rinsing step, when the load amount detected by the load amount detecting means is equal to or more than a predetermined amount, after the water is supplied to the washing tub to a predetermined water level, the water supply is stopped, and stirring with the rotary blade is performed. After that, restart the water supply without intervening drainage,
Injection rinsing in which stirring is performed by the rotating blades while supplying water is performed.

(E) Action That is, when the detected load amount is equal to or more than a predetermined amount, after the water is supplied to the washing tub to a predetermined water level, the water supply is stopped and stirring is performed by the rotating blades, so that the detergent can be sufficiently rinsed. Then, water supply is started without drainage, water injection is rinsed, and the detergent is replaced with clean water.

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a body of a washing machine, and 2 denotes a body of the washing machine.
An outer tub suspended and supported in the tub, 3 is a washing tub provided in the outer tub, 4 is a power switch, 5 is an operation unit, and 6 starts a sensor course for automatically performing rinsing control according to a load amount. A sensor button, 7 is a start button for starting an arbitrarily set washing course, 8 is a rotating blade disposed at the bottom of the washing tub 3, 9 is a driving motor, 10 is a reduction bearing device, and 11 is a blade driving pulley. The permanent magnet 12 is fixed.
A reed switch 13 is mounted at a position corresponding to the permanent magnet 12 and detects the number of revolutions of the rotary wing 8.

FIG. 2 shows a control mechanism of the washing machine, in which washing, rinsing, and dehydrating steps are sequentially executed according to a program under the control of a microcomputer 14 (hereinafter, a microcomputer).

That is, the microcomputer 14 includes a CPU 15, a RAM 16, a ROM 17, a timer 18, a system bus 19, and input / output ports 20 to 26. The CPU 15 includes a control unit 27 and a calculation unit 28.The control unit 27 fetches and executes an instruction, and the calculation unit 28 receives an input according to a control signal from the control unit 27 and the like at a stage of executing the instruction. Binary addition to data given from equipment and memory. Logical operation. Increase or decrease. Performs arithmetic processing such as comparison. The RAM 16 is for storing data relating to the washing machine.The ROM 17 is provided with means for operating the washing machine in advance, setting conditions for determination, rules for processing various information, and the like. It is to be read.

The input ports 20, 21, 22, and 23 have a load detector 2
9, an input key circuit 30 including the various operation keys,
Signals from the water level detector 31 and the top cover safety switch 32 are input, and based on these information, the output ports 24, 25, and 26 provide an LED drive circuit 33 composed of the LED group, a process end notification or abnormality. A control signal is sent to a notification buzzer circuit 34, a load drive circuit 35 including a bi-directional thyristor, and the like. The load drive circuit 35, according to the control signal from the microcomputer 14, the left and right rotation circuit 36 of the rotor driving motor,
37. Control the operation of the water supply electromagnetic valve drive circuit 38 and the drainage electromagnetic valve circuit 39. Reference numeral 40 denotes a power supply circuit for supplying a voltage to the microcomputer 14, and reference numeral 41 denotes a reset signal generation circuit.

The water level detector 31 detects a water level change in the washing tub as a pressure change. The magnetic body is moved within the coil according to the pressure, and as a result, a change in water level is detected as a change in inductance of the coil. The microcomputer 14 detects the water level in the tank continuously and over a wide range based on the inductance change.

The load amount detector 29 is connected to the magnet 12 and the reed switch.
When the pulley 11 makes one rotation, the reed switch 13 opens and closes once. The microcomputer 14 counts this open / close signal to detect the number of rotations of the rotary wing 8 and load the load. It is the quantity data. That is, if the load is large,
Since the rotating blade 8 is hard to rotate, the value of the load amount data is small.

 The operation based on such a configuration will be described with reference to FIG.

When the sensor button 6 for starting the sensor course is operated, first, water is supplied to a predetermined small water level in order to determine the load amount, the rotating blade 8 is rotated, and the number of rotations is detected by the reed switch 13 (S -1). Then, the detection data is input from the load amount detector 29 to the input port 20, and the microcomputer 14 sets the load amount to large, medium,
The washing operation is performed for a predetermined period of time at a predetermined water level (S-3) and a water flow corresponding to each load amount, while dividing into four stages of small and minimal amount (S-2) (S-4). After washing operation, drain water. The intermediate dewatering step (S-6) is performed, and the process proceeds to the next rinsing step.

In the rinsing step, water is supplied up to the water level corresponding to each load (S-7, 8, 10, 11). At the time of minimal load (S-8)
After water is supplied to the extremely low water level corresponding to the load, the rinsing and rinsing are repeated for 1.5 minutes, and the draining step (S-9) and the final dehydrating step are performed. The washing process ends.

At the time of a small load, water is supplied to a low water level corresponding to the load (S-10), and the rinsing and the rinsing are repeated once for two minutes with the rinsing and draining steps interposed therebetween. 9) and the final dehydration step, and the washing step is completed.

At the time of medium load, water is supplied to the middle water level corresponding to the load (S-11), rinsed for 45 seconds to diffuse the detergent component in the clothes into the rinse water, and then the water supply is resumed and continued. Further, a water-injection rinse (S-12) for 1.5 minutes is performed to disperse the detergent and replace with clean water. The drain rinse is repeated, and the drain rinse is repeated (S-9). And the washing step of performing the final dehydration step is ended.

At the time of a large load, water is supplied to a high water level corresponding to the load (S-13), and then rinsed for one minute (S-14), and the detergent in the clothes is sufficiently diffused into the rinse water to flow out. Then, water supply is resumed, and a further 1.5 minute water rinsing (S-12) is performed to enhance the diffusion and replacement effects.

When this rinsing method is performed twice (S-15), the drainage step and the intermediate dehydration step (S-6) are performed, and the rinsing method is repeated once more.
By adding an additional rinse (S-16) for one minute, the undissolved granular soap is floated from the cloth to prevent a decrease in the rinse rate, and the drainage step (S-9) and final finishing The dehydration step is performed, and the washing step is completed.

As described above, in the present embodiment, at the time of a large load amount or a medium load amount, the rinsing is automatically switched to the water rinsing method after the rinsing for a predetermined time.

In particular, at the time of a large load, since a further rinse is added after the water rinse, for example, a detergent having poor solubility may remain in the laundry and not dissolve. Since the rinsing method is added to the rinsing method combined with the rinsing method, the remaining detergent can be driven out of the laundry.

For example, when the laundry subjected to the rinsing method is dried in a household clothes dryer, the filter portion of the dryer is not clogged with the granular detergent, and the frequency of cleaning the filter is reduced.

(G) Effect of the Invention According to the washing method for a washing machine of the present invention, in the rinsing step, when the load amount is equal to or more than a predetermined amount, after the water is supplied to the washing tub to a predetermined water level, the water supply is stopped, and Stir,
After that, by rinsing while supplying water again without draining water, the undissolved detergent or detergent impregnated in the laundry is dissolved and dissolved in the rinsing water, and then the water is rinsed. Is good.

[Brief description of the drawings]

FIG. 1 (a) is a front view of a washing machine embodying the present invention, FIG. 1 (b) is a front view of the same operation unit, FIG. 2 is a block circuit diagram of a control mechanism, and FIG. It is a flowchart of a cleaning operation. 11… wing drive pulley, 14… microcomputer control means, 28… load detector (load detector), 30…
Water level detector (water level sensor).

Claims (1)

(57) [Claims] A washing tub having rotating blades disposed therein; a water level sensor for detecting a water level in the washing tub; a load amount detecting means for detecting a load amount in the washing tub; Based on the data from the load amount detection means,
Control means for executing each step operation such as rinsing, and under the control of the control means, in the rinsing step, when the load amount detected by the load amount detection means is equal to or more than a predetermined amount. After the water is supplied to the washing tub to a predetermined water level, the water supply is stopped and the stirring is performed by the rotating blades. Thereafter, the water supply is resumed without interposing the drainage, and the water injection rinse is performed by stirring with the rotating blades while supplying the water. A washing method for a washing machine, comprising: