JPH0449993A - Washing method of washing machine - Google Patents

Abstract

PURPOSE:To highten the effect of diffusion of detergent elements and replacement with clean water by changing over to a rinsing while feeding water method after rinsing in fed water for a given time when a load rate detected by a load rate detector is exceeding a fixed rate. CONSTITUTION:A washing cycle for a middle load rate of washing is that: feed water to a middle water level, 45 sec. rinsing in fed water to diffuse detergent elements penetrated into clothes, re-feed water, 1.5 minute rinsing while feeding water to diffuse detergent elements and replace with clean water, draining, feed water, rinsing, draining, and final dehydrating. For a heavy load rate of washing, feed water to a high water level, 1 minute rinsing in fed water, draining, re-feed water, and 1.5 minute rinsing while feeding water to highten the effect of diffusion and replacement with clean water.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a method for cleaning a domestic washing machine.

(B) Conventional technology As a conventional example, Japanese Patent Laid-Open No. 64-56096 discloses a washing machine that performs water injection rinsing by controlling water supply according to the rinsing time in order to improve the rinsing effect. .

(c) Problems to be Solved by the Invention In the conventional example, due to confusion in washing course settings or inaccuracy in manually set values, rinsing that is appropriate for the load amount and fabric quality has been difficult. I couldn't do it.

In view of these problems, the present invention aims to improve the rinsing performance.

(d) Means for Solving the Problems The washing machine washing method of the present invention uses a water level sensor that outputs a signal corresponding to changes in the water level in the washing tub, and a load amount that is detected by detecting the rotation speed of the blade drive pulley. a detection means for detecting;
and a control means for executing each process operation such as washing and rinsing based on the data from the water level sensor and the load amount detection means, and the rinsing step is carried out under the control of the control means. In this method, when the load amount detected by the load amount detection means is equal to or greater than a predetermined amount, the rinsing method is executed for a predetermined time and then the water injection rinsing method is switched to.

The above-mentioned rinsing method is a method in which rinsing water at a predetermined level is supplied to the washing tub, then the water supply is stopped and the water is stirred with a blade.
The water injection rinsing method is a method in which water is supplied to a predetermined water level and then stirred with a blade without stopping the water supply.

(E) Action: When the detected load amount is more than a predetermined amount, first rinse for a predetermined period of time to thoroughly rinse the detergent and dissolve it in the water, then start water injection. Switch to the rinse method.

(f) Example Embodiments of the present invention will be described below based on the drawings.

In FIG. 1, 1 is the main body of the washing machine, 2 is an outer tank suspended and supported within the main body 1, 3 is a washing tank provided in the outer tank, 4 is a power switch, 5 is an operating section, 6 is a sensor button that starts a sensor course that automatically performs rinsing control according to the load amount; 7 is a start button that starts an arbitrarily set washing course; 8 is a rotary blade disposed at the bottom of the washing tub 3; 9 is a drive motor, 10 is a reduction bearing device, and 11 is a blade drive pulley to which a permanent magnet 12 is fixed. Reference numeral 13 denotes a reed switch, which is mounted at a position corresponding to the permanent magnet 12 and is used to detect the rotation speed of the rotary blade 8.

FIG. 2 shows the control mechanism of the washing machine, and under the control of a microcomputer 14 (hereinafter referred to as microcomputer), washing, rinsing, and spin-drying steps are sequentially executed according to a program.

That is, the microcomputer 14 includes a CPU 15, a RAM 16,
It consists of a ROMI 7, a timer 18, a system bus 19, and input/output ports 20-26. Said CPU15
is composed of a control section 27 and an arithmetic section 28, the control section 27 takes out and executes instructions, and the arithmetic section 28
In the instruction execution stage, the control section 27 performs arithmetic processing such as binary addition, logical operation, increase/decrease, and comparison on data provided from input devices and memory in response to control signals from the control section 27 and the like. The RAM 16 is for storing data regarding the washing machine, and the ROM 17 stores information such as means for operating the washing machine, setting conditions for judgment, rules for processing various information, etc. It should be loaded.

The input boat 20.21.22.23 receives signals from the load amount detector 29, the input key circuit 30 consisting of the various operation keys, the water level detector 31 + the top cover safety switch 32, and these information Based on, from the output port 24, 25, 26, L consisting of the LED group
A control signal is sent to an ED drive circuit 33, a process end notification or abnormality notification buzzer circuit 34, a load drive circuit 35 comprised of a bidirectional cyrisk, and the like. The load drive circuit 3
5 controls the operations of the left and right rotation circuits 36 and 37 of the rotor blade drive motor, the water supply solenoid valve drive circuit 38, and the drainage solenoid valve drive circuit 39 in accordance with the control signal from the microcomputer 14. 40 is a power supply circuit that supplies voltage to the microcomputer 14, and 41 is a reset signal generation circuit.

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

The load amount detector 29 is composed of the magnet 12 and the reed switch 13, and when the pulley 11 rotates once,
Since the reed switch 13 opens and closes once, the microcomputer 14 counts this opening and closing signal to control the rotation N8.
The rotation speed is detected and used as load amount data. That is, when the load amount is large, it is difficult for the rotary blade 8 to rotate, so the value of this load amount data is small.

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

When you operate sensor button 6 to start the sensor course,
First, in order to determine the amount of load, water is supplied to a predetermined small amount of water level, the rotary blade 8 is rotated, and the number of rotations is detected by the reed switch 13 (S-1). Then, detection data is input from the load amount detector 29 to the input port 20,
Based on this data, the microcomputer 14 increases the load amount.
The washing operation is divided into four stages: medium, small, and extremely small (S-2), and a washing operation is performed for a predetermined time at a predetermined water level (S-3) and water flow corresponding to each load (S-4). After the washing operation is completed,
Drainage and intermediate dehydration steps (S-6) are performed, and the process moves to the next rinsing step.

In the rinsing process, each load amount (S-7, 8, 10, 11)
Water is supplied to the corresponding water level. When the load is extremely small (S-8
) After supplying water to an extremely low water level corresponding to the load amount, 1.
After repeating rinsing and draining steps for 5 minutes, rinsing is repeated one more time, and then a draining step (S-9) and a final dehydration step are performed to complete the washing step.

When the load amount is small, water is supplied to a low water level corresponding to the load amount (S-10), and after rinsing and draining steps are repeated for 2 minutes, rinsing is repeated one more time, and then the draining step (S-10) is performed. 9) and a final dehydration process to complete the washing process.

When the amount of insole is loaded, water is supplied to the medium water level corresponding to the load (S-11), and after rinsing for 45 seconds to diffuse the detergent components in the clothes into the rinse water, water supply is resumed. Continue to rinse with water for 1.5 minutes (S-12)
After dispersing the detergent and replacing it with clean water, repeated rinsing with a drainage process in between,
A drainage process (S-9) and a final dehydration process are performed to complete the washing process.

When the load is large, water is supplied to a high water level corresponding to the load (S-13), and then rinsed for 1 minute (S-14)
After thoroughly rinsing and dispersing the detergent in the clothes into the water, the water supply is restarted and a further 1.5 minute rinse is performed (S-12) to increase the diffusion and replacement effect. .

When this rinsing method is performed twice (S-15), a drainage process and an intermediate dehydration process (S-6) are performed, and then once again 2 times.
By rinsing (S-16) for an additional minute, undissolved granular soap particles are suspended from the cloth to prevent a decrease in the rinsing rate, and the draining step (S-9) and final finishing step are performed. The washing process is completed by performing a dehydration process.

As described above, in this embodiment, when the load amount is large or the amount of insole material is loaded, following rinsing for a predetermined period of time, the water injection rinsing method is automatically switched to perform rinsing.

Particularly when the load is large, a pre-rinse is added after the water injection rinse, so for example, detergent with poor solubility may remain in the laundry and not dissolve. Since the rinsing method combines the rinsing method with an additional rinsing, residual detergent can be expelled from the laundry.

For example, when laundry that has been rinsed using this rinsing method is dried in a household clothes dryer, the granular detergent will not clog the filter of the dryer, and the filter will need to be cleaned less frequently.

(G) Effects of the Invention According to the washing machine washing method of the present invention, in the rinsing process, when the load amount is greater than a predetermined amount, after rinsing is performed for a predetermined time, water is continuously supplied and rinsed with water. As a result, the rinsing efficiency is improved because the water injection rinsing is performed after the undissolved detergent and the detergent impregnated in the laundry are dissolved in the rinsing water.

[Brief explanation of drawings]

Figure 1 (A) is a front view of a washing machine embodying the present invention, Figure (B) is a front view of the operating section, Figure 2 is a block circuit diagram of the control mechanism, and Figure 3 is a washing machine. It is a flowchart of operation. DESCRIPTION OF SYMBOLS 11...Blade drive pulley, 14...Microcomputer control means, 28...Load amount detector (load amount detection means), 30...Water level detector (water level sensor).

Claims (1)

[Claims] (1) A water level sensor that outputs a signal corresponding to changes in the water level in the washing tub, a detection means that detects the rotation speed of the blade drive pulley to detect the load amount, and data from the water level sensor and the load amount detection means. and a control means for executing each process operation such as washing and rinsing based on the
Under the control of the control means, in the rinsing process, when the load amount detected by the load amount detection means is equal to or greater than a predetermined amount, after executing the rinsing method for a predetermined time, switching to the water injection rinsing method is performed. Featured washing machine cleaning method