JPS5923239B2 - Water supply control method for automatic washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to reduce the amount of cloth in the washing tank in order to prevent staining of the clothes to be washed due to the amount of cloth being too large relative to the amount of water in the washing tank.

This relates to a water supply control method for automatic washing machines that automatically controls the amount of water supplied so that the optimum amount of water can be supplied according to the washing process. The purpose is to detect the condition of the cloth by detecting changes in this rotational movement, and if the amount of water is too small for the cloth, it will automatically supply water to ensure that the cloth is always washed with the optimal amount of water. This is what I did.

In conventional washing machines, the water volume setting when washing is
Users make judgments based on their own experience and set the settings to several levels or no levels, and as a result, there are cases where the amount of water used is too small for the amount of items to be washed, resulting in severe damage to the items to be washed. Another disadvantage is that too much water results in wasteful use of water, detergent, and the like.

Furthermore, the user has to manually set the amount of water, making the washing machine complicated to operate.

The present invention solves the above-mentioned conventional drawbacks, and an example of its implementation will be described below with reference to the drawings.

In the figure, 1 is a washing tank, 2 is a rotary blade that stirs the laundry and water put into the washing tank 1, and 3 is a motor that rotates the rotary blade 2.

Reference numeral 4 denotes a rotational motion detection device for detecting a change in the rotational motion of the rotary blade 2, and 5 a comparator that compares and judges the signal obtained from this detection device 4 with a preset reference value.

6 is a controller that processes the signal from the comparator 5 and controls the operation of the washing machine; 7 is a drain valve; and 8 is a water supply valve.

In the above configuration, when the washing machine operates, the washing tank 1
The items to be washed and the water inside are agitated by the rotational force of the rotary blades 2, and at the same time, the agitation state of the amount of items to be washed and the amount of water acts in a direction that impedes the rotational movement of the rotary blades 2. This change is detected by the rotational movement detection device 4.

Here, if the amount of water is too small relative to the amount of items to be washed, the change in the rotational movement of the rotor blades will be larger than in the normal case, so the signal obtained by the detection device 4 is transmitted to the comparator 5. It is determined that it is larger than the reference value, and the signal is sent to the controller 6.

As a result, a water supply signal is sent from the controller 6 to the water supply valve 8, and water is additionally supplied to the washing tank 1.

By the above-described operation, the amount of water for the items to be washed in the washing tank 1 is always at an appropriate amount, and an optimum washing operation with less soiling of the cloth can be performed.

According to the present invention as described above.

The amount of water when washing is always automatically controlled to the optimum amount, so there is no damage to the fabric due to too little water, and there is no need to set the amount of water each time you use a washing machine. , operation can be extremely simplified.

Furthermore, if there is not enough water, water will be supplied automatically, so if you set the initial water amount for washing to the minimum necessary amount,
This is extremely useful as it can eliminate waste such as using too much water.

[Brief explanation of drawings]

The drawing is a block diagram showing a water supply control system of an automatic washing machine in one embodiment of the present invention. 1...-washing tank, 2...-rotor blade, 3...
...Motor, 4-...Rotation motion detection device, 5
...-Comparator, 6...Controller, 8
・・・−・・Water supply valve.

Claims (1)

[Claims] 1. In a washing machine that automatically performs a series of washing, rinsing, and dehydrating operations, there is a rotational motion detection device that detects the number of rotations or rotational speed of the rotor blade during washing, and a signal from this detection device is compared with a reference value. a controller that processes the signal from the comparator to control the operation of the washing machine, and a water supply valve that operates according to instructions from the controller, and that responds to the cloth condition detected by the rotational motion detection device. A water supply control method for an automatic washing machine that supplies an appropriate amount of washing water.