KR960009786Y1 - Water supply control apparatus of a washing machine - Google Patents

Abstract

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Description

Water supply controller of washing machine

1 is a table showing the steps of a general rinsing stroke of a washing machine.

2 is a control circuit diagram of a general drainage motor.

3 is a view for explaining the operation and non-operation state of the drain valve drive unit according to the present invention (a) and (b).

* Explanation of symbols for main parts of the drawings

10: drain motor 14: drain valve

16: electromagnet 18: triac

The present invention relates to a water supply control device for a washing machine aiming to shorten the washing time, and more particularly, to a water supply control device for a washing machine to shorten the washing time by performing water supply during an inertia rotation period of a dehydration tank included in a rinsing stroke. will be.

In general, the overall administration of the washing machine is largely composed of a washing stroke, a rinsing stroke, and a dehydration stroke. The total time required varies depending on the amount of the laundry and the kind of the laundry.

1 is a table showing the general rinsing cycles of a washing machine.

As shown in FIG. 1, the general rinsing operation of the washing machine includes the steps of draining the washed water, performing intermediate dehydration while supplying water by driving a water supply valve, dehydrating without water supply, and rest. And a water supply step and a rinsing step. In the intermediate dehydration and dehydration step, the washing / dehydration tank is rotated at high speed by the washing / dehydration motor, and dehydration is carried out. The rinsing stroke is performed.

On the other hand, the drainage motor for opening and closing the drain valve by using the rotational power is energized from the draining step to the end of the rest phase to open the drain valve so that the water in the washing tank is discharged out of the washing machine. The rest phase is a step to prevent damage to the gear mechanism which may be caused by sudden braking of the washing / dehydrating motor that is rotating at high speed at the same time as the dehydration step is finished. It is a step for.

2 is a control circuit diagram of a general drainage motor. As shown in FIG. 2, the control circuit of a general drainage motor includes a drainage motor M for opening and closing a drainage valve by its rotational force, and a drainage valve state switch SW1 for designating the drainage valve in an open state or a closed state. And triacs TR1 and TR2 for controlling the energization of the drain motor M.

However, in the conventional rinsing stroke control method consisting of the above steps and configuration, the time required for the rinsing stroke is not achieved until the water supply is performed only after the completion of the rest stage until the washing / dehydrating tank is stopped by the frictional force after the completion of dehydration. There was a problem extending unnecessarily.

The present invention has been made to solve the above problems, and provides a water supply control device of the washing machine to shorten the overall washing time by performing the water supply during the braking time by the frictional force of the washing / dehydration tank included in the rinsing stroke. Its purpose is to.

Water supply control device of the washing machine of the present invention having the above object is largely a microprocessor for controlling the operation of the entire washing machine, the drainage motor and water supply controlled to open the drain valve during the draining step, dehydration step and rest phase of the rinsing stroke A control apparatus of a washing machine having a water supply driver for driving a valve, the control device comprising: a distribution valve driver controlled to close the drain valve during the rest phase.

The distribution valve driving unit is installed in the drainage pipe of the washing machine and is installed in the drain valve made of permanent magnets, an electromagnet composed of a core and a coil for applying repulsion to the drain valve, and a triad for controlling the energization of the coil of the electromagnet. It is made of evil.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the water supply control device of the washing machine according to the present invention.

3 (a) and (b) is a view for explaining the operation and non-operational state of the drain valve drive unit according to the present invention.

As shown in Figure 3, the water supply control device of the washing machine according to the present invention is installed in place of the drain pipe (1) and the drain valve 14 made of a permanent magnet and the drain valve 14 made of the permanent magnet Electromagnet 16 consisting of a core 16A for generating repulsive force and a coil 16A wound around the core 16B, and a triac 18 for controlling the energization of the electromagnet coil 16B. It consists of drain valve driving part. The anode and cathode terminals of the triac 18 are respectively connected to the DC power supply (Vcc) and the ground terminal via a coil 16B wound around the core 16A of the electromagnet 16, the gate terminal of which is connected to the microprocessor. Connected. In the figure, reference numeral 10 denotes a drain motor for driving the drain valve 14 in the conventional washing machine.

Although not shown in the drawings, in order to apply the water supply control apparatus according to the present invention, a microprocessor for controlling the overall operation of the washing machine, and a water supply driving unit for supplying the wash water in the washing tank as a whole. Furthermore, a water supply detecting unit for detecting a water level in the washing tank is also required.

Under the above configuration, when the washing stroke is finished, the rinsing stroke is performed. In the microprocessor, the drained motor 10 is first energized to open the drain valve 14 to drain dirty water after washing.

Next, while driving the water supply drive to perform a water supply in the washing tank and at the same time to rotate the washing motor to the right to perform dewatering dewatering. In the next step, dehydration is performed by rotating the washing motor to the right at high speed while the water supply is stopped and the water supply is stopped. The triac 18 is turned off until the end of this dehydration step so that the drain pipe 1 remains open as shown in FIG.

The next step is to turn off the washing motor so that the washing tank is braked slowly. The microprocessor blocks the power to the washing motor and outputs a high level signal to the gate terminal of the triac 18. Turn on the triac 18. When the triac 18 is turned on, current flows in the coil 16B to excite the core 16A, thereby causing repulsion to push the drain valve 14 made of permanent magnet.

By the above operation, the drain pipe 1 is blocked and at the same time, the microprocessor drives the water supply driving unit to supply the washing water to the required water level. In this state, the microprocessor senses the water level of the washing water through the water level detection unit, and stops the water supply when the washing water reaches the required water level, and simultaneously rotates the washing motor left and right to rinse the laundry.

As described above, according to the water supply control apparatus of the washing machine of the present invention, it is possible to shorten the overall washing time by allowing water to be performed during the rest phase included in the rinsing cycle.

Claims (1)

In the control device of the washing machine having a microprocessor for controlling the operation of the entire washing machine, and a water supply unit for driving the water supply valve and a drain motor driven to open the drain valve during the draining step, the dehydration step and the rest phase during the rinsing stroke. In the rest of the drain pipe provided in place within the drain pipe provided with a permanent magnet, a core for applying a repulsive force to the drain valve, an electromagnet consisting of a core, and a triac for controlling the energization of the electromagnet coil A water supply control device for a washing machine, comprising: a drain valve driver for controlling the drain valve to be closed.