KR100812613B1 - Method for removing air of valve - Google Patents

Abstract

A method for removing air from a valve is provided to reduce water pressure by repeatedly turning on and off a water supply valve and a drain valve after starting a washing process. A method for removing air from a valve comprises the steps: turning on a water supply valve and a drain valve simultaneously after starting a washing process and maintaining the state for 1 second(S20); turning off the water supply valve and the drain valve and maintaining the state for 1 second(S40); and repeatedly turning on and off the water supply valve and the drain valve for 5 times.

Description

Method for removing air of valve}

1 is a block diagram of a valve air removing device according to an embodiment of the present invention.

2 is a flow chart of a valve air removal method according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: water supply valve

20: drain valve

30: Micom

The present invention relates to a washing machine, and more particularly to a valve air removing method for removing the air in the water supply valve and the drain valve of the washing machine.

The washing machine consists of a washing tank containing laundry, a motor that rotates the washing tank, a microcomputer controlling the washing process of the washing machine and controlling the general matters of the washing machine, and a water supply / drain valve that is turned on / off in response to the control signal of the microcomputer. To perform the washing process of the laundry contained in the washing tank.

In order to smoothly perform the washing process, the conventional washing machine further includes a quantity sensor for detecting the amount of laundry contained in the washing tank, and a water level sensor for measuring the level of the washing tank.

Therefore, the conventional washing machine operates to properly wash the laundry according to the amount of the laundry by adjusting the number of times and time of washing, rinsing, dehydration according to the quantity detected by the quantity sensor.

In addition, according to the level detected by the water level sensor, the microcomputer controls the water supply / drain valve to ensure a smooth supply / drainage.

Here, as described above, the water supply valve and the drain valve allow water supply and drainage to the washing tank, but when the washing machine is initially operated, there is air in the water supply valve and the drain valve, and a water supply valve failure occurs due to the water supply pressure during water supply. There was a case.

SUMMARY OF THE INVENTION The present invention has been made to improve the above-mentioned problem, and when the washing stroke is started, it is to provide a valve air removing method of removing water supply pressure by repeating a process of turning on / off a water supply valve and a drain valve.

The present invention devised to achieve the above object is as follows. Valve air removal method of the present invention is a valve air removal method for removing the air in the water supply valve for supplying the wash water in the washing tank and the drain valve for draining the washing water in the washing tank, when the washing stroke is started, A first step of simultaneously turning on the water supply valve and the drain valve to maintain the opening time and a second step of turning off the water supply valve and the drain valve at the same time when the opening time has elapsed, The first step and the second step is characterized in that it is performed repeatedly in sequence.

The water supply valve and the drain valve may be turned on for one second and turned off for one second.

The water supply valve and the drain valve may be repeatedly turned on or off five times.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a valve air removing device according to an embodiment of the present invention.

Valve air removing apparatus according to an embodiment of the present invention, as shown in Figure 1, in response to the control signal of the microcomputer 30, the water supply valve 10, the microcomputer 30 that is turned on / off to supply the washing water to the washing tank And a drain valve 20 which is turned on / off to drain the wash water supplied to the washing tank in response to a control signal of the), and the microcomputer 30 which generally controls the valve air removing device of the present embodiment.

In particular, after commencement of the washing stroke, the microcomputer 30 controls the above water supply valve 10 and the drain valve 20 to simultaneously turn on / off to remove the air in the water supply valve 10 and the drain valve 20. do.

The control process of the microcomputer 30 will be described in detail through the valve air removing method according to the exemplary embodiment of the present invention with reference to FIG. 2.

2 is a flow chart of a valve air removal method according to an embodiment of the present invention.

Valve air removal method according to an embodiment of the present invention when the first user to start the washing stroke through the key panel is usually installed in the front of the washing machine (S10), the microcomputer 30 is the water supply valve 10 and the drain valve 20 At the same time by controlling the (S20) to allow the air to be distributed to the outside through the washing tank.

In this way, when the water supply valve 10 and the drain valve 20 are turned on, a time is counted, and it is determined whether the preset opening time preferably 1 second has elapsed (S30).

At this time, when the counted time passes the opening time, the water supply valve 10 and the drain valve 20 are turned off (S40), and the time is counted.

In addition, it is determined whether the counted time is a preset closing time, preferably 1 second (S50), and counts once when the counting time passes the closing time (S60).

After counting once, it is determined whether the counted number of times is a predetermined set number, preferably 5 times, and if it has not reached 5 times, the water supply valve 10 and the drain valve 20 are turned on for the above-described process, that is, 1 second. After the water supply valve 10 and the drain valve 20 are turned off for 1 second, the process of confirming the counted times after counting once is repeated (S20 to S70) to supply the water supply valve 10 and the drain valve ( Remove the air pressure in 20).

Here, the above process is repeated up to five times.

The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

According to the present invention configured as described above, when the washing stroke is started, the process of turning on / off the water supply valve and the drain valve can be repeated to remove the air inside the valve.

Claims (4)

In the valve air removal method for removing the air in the water supply valve for supplying the wash water in the washing tank and the drain valve for draining the washing water in the washing tank, A first step of maintaining the opening time by turning on the water supply valve and the drain valve at the same time when the washing stroke is started; And When the opening time has elapsed, a second step of maintaining the closing time by turning off the water supply valve and the drain valve at the same time, The first step and the second step is a valve air removing method, characterized in that to perform sequentially repeatedly. The method of claim 1, wherein the water supply valve and the drain valve are turned on for one second. The method of claim 1, wherein the water supply valve and the drain valve are turned off for one second. The method of claim 1, wherein the water supply valve and the drain valve are repeatedly turned on or off five times.

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