Control method of water pump

A control method and technology of water suction pumps, which are applied to the control devices of washing machines, textiles and papermaking, household appliances, etc., can solve the problems of low tap water pressure, no tap water, and discontinuous supply, so as to prolong the service life, avoid time detection, The effect of reducing the frequency of startup

Active Publication Date: 2018-11-06
QINGDAO HAIER WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the status quo in most rural areas is: 1) There is no running water, and river water, well water, or water tanks and reservoirs are used for laundry; 2) There is running water, but the water pressure is low or the supply is not continuous, and it is necessary to Water storage, therefore, for washing machines, relying on tap water pressure to fill water will not meet the needs
In response to this situation, a washing machine equipped with a water suction pump has been launched on the market. The water suction pump is integrated inside the washing machine, and a computer board is used to control the work of the water suction pump. This type of washing machine with a special water suction pump has the disadvantage of complex structure, and the product has certain limitations

Method used

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  • Control method of water pump
  • Control method of water pump

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 2 As shown, this embodiment introduces a control method of a water suction pump. The water suction pump is started and started to work. After detecting that the water outlet pipe of the water suction pump is out of water, start timing t1, and when the timing time t1 reaches the set time T1, determine The pump motor of the water suction pump works overtime, and the water suction pump is controlled to stop working.

[0031] In the present invention, by controlling the pump motor to stop working after the work exceeds a certain value, the damage caused by the overtime work of the pump motor is avoided, and the service life of the pump motor is prolonged. However, the present invention places the detection of the working time of the pump motor in the outlet pipeline of the water suction pump After the water comes out, instead of after the pump motor works, the reason is that the pump motor works during the working process of the pump motor of the present inv...

Embodiment 2

[0041] The difference between this embodiment and Embodiment 1 is that after t1 reaches T1 and the pump motor stops working, start counting, and judge whether the counted time t2 reaches the time required for the temperature to drop from the temperature when the pump motor stops working to the temperature when it can work again T2, if yes, start the pump motor, if not, do not start the pump motor until t2 reaches T2.

[0042] The above setting enables the stopped pump motor to start up and start working without user operation after meeting the condition of being able to work again, which simplifies the control of the water suction pump.

[0043] Accordingly, the working steps of the suction pump include:

[0044] Step 1. Start the suction pump and start working, and then perform step 2;

[0045] Step 2. Determine whether the water outlet pipe of the suction pump is out of water. If yes, start timing and execute step 3. If not, execute step 4;

[0046] Step 3, judging whether t...

Embodiment 3

[0054] The difference between this embodiment and Embodiments 1 and 2 is that before starting the pump motor, it is first judged whether the user triggers the pump motor start command, if yes, the pump motor is started, and if not, the pump motor is not started.

[0055] The above setting makes the pump motor start and work only under the operation of the user, which improves the reliability of the control of the water suction pump.

[0056] Accordingly, the working steps of the suction pump include:

[0057] Step 1. Start the suction pump and start working, and then perform step 2;

[0058] Step 2. Determine whether the water outlet pipe of the suction pump is out of water. If yes, start timing and execute step 3. If not, execute step 4;

[0059] Step 3, judging whether the counted time t1 reaches the set time T1, if yes, then execute step 5, if not, then execute step 6;

[0060] Step 4, make the pump motor stop working;

[0061] Step 5. Make the pump motor stop working, s...

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Abstract

The invention relates to the control method of a water pump. The method comprises the steps that the water pump is switched on and starts operating, after it is detected that water comes out from a water outlet pipeline of the water pump, timing t1 is started, after the timing t1 reaches a preset time T1, it is judged that a pump motor of the water pump operates overtime, and the water pump is controlled to stop operating. According to the method, the detection on the operation time of the pump motor is performed after the water comes out from the water outlet pipeline of the water pump but not after the pump motor operates, the reason is that the situation that the pump motor operates but the water does not come out from the water outlet pipeline in the operation process of the pump motorexists, under the situation, the pump motor stops operating soon, and the problem of operating overtime does not exist; by performing detection on the operation time of the pump motor after the watercomes out from the water outlet pipeline, meaningless time detection is prevented, the starting frequency of a time detection module is reduced, the starting frequencies of related modules are reduced, and therefore the service life of the water pump is prolonged.

Description

technical field [0001] The invention relates to a control method of a water suction pump. Background technique [0002] Along with the swift and violent development of science and technology, washing machine has come into huge numbers of households as a kind of necessary household appliance. The water injection methods of fully automatic washing machines on the market mostly rely on the pressure of tap water to inject water into the washing machine. However, most of the current situation in rural areas is: 1) There is no tap water, and river water, well water, or water tanks and reservoirs are used for laundry; 2) There is tap water, but the water pressure is low or the supply is not continuous, and it is necessary to Water storage uses, therefore, for washing machine, rely on the mode of tap water pressure to fill water and can't satisfy needs. In response to this situation, a washing machine equipped with a water suction pump has been introduced on the market. The water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02
CPCD06F33/00Y02A20/00
Inventor 陈瑜薛凯方大丰
Owner QINGDAO HAIER WASHING MASCH CO LTD
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