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Washing machine and water inlet control method thereof

A technology for water inlet control and washing machine, applied in the control device of washing machine, other washing machines, washing devices, etc., can solve the problems of washing machine rust, pollution shock absorber, foam overflowing into the interior of the washing machine, etc., to improve the control effect and guarantee longevity and improved accuracy

Active Publication Date: 2019-02-26
HEFEI HAIER DRUM WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this patent, the detection of foam is only carried out during the washing process of the washing machine. However, in essence, most of the foam is caused by the excessive amount of detergent put in the detergent delivery box. A large amount of foam is produced under the impact of incoming water. At this time, the foam easily rises and overflows from the overflow in the detergent box to the inside of the washing machine, thereby polluting the shock absorber or other components and causing the inside of the washing machine to rust, which seriously affects the use of the washing machine. performance and normal service life
Therefore, in this patent, the foam detection is only carried out during the washing stage without taking into account the foam generated in the detergent delivery box during the water inlet stage of the washing machine. Therefore, it cannot be guaranteed that the inside of the washing machine will not enter the foam.

Method used

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  • Washing machine and water inlet control method thereof
  • Washing machine and water inlet control method thereof
  • Washing machine and water inlet control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see figure 1 As shown, this embodiment provides a washing machine, including a water inlet device, the water inlet device includes a water inlet and a water outlet, and the washing machine also includes a foam detection device 5, and the foam detection device 5 passes The measuring signal is transmitted into the water inlet device and the foam height in the water inlet device is determined according to the time of receiving the echo signal. The control device of the washing machine controls the water inlet flow rate of the water inlet device according to the foam height detected by the foam detection device.

[0048] The water inlet device includes a water inlet pipeline and a water storage tank 1 communicated with the water inlet pipeline, and the foam detection device 5 is arranged on the water storage tank 1 and includes a measurement signal transmitting end for transmitting a measurement signal into the water storage tank 1 , the measurement signal transmitting end ...

Embodiment 2

[0055] Embodiment 2 provides a washing machine, including a water inlet device, the water inlet device includes a water inlet and a water outlet, the water inlet is connected to a water source, and the water outlet is connected to the washing chamber of the washing machine, and the washing machine also includes a foam detection device, the foam detection device transmits a measurement signal into the water inlet device and determines the foam height in the water inlet device according to the time of receiving the echo signal, and the control device of the washing machine controls the water inlet according to the foam height detected by the foam detection device water flow to the device.

[0056] The water inlet device includes a water inlet pipeline and a water storage tank 1 communicated with the water inlet pipeline. The water storage tank 1 is used to accommodate the detergent delivery box, and a water inlet valve 4 is arranged on the water inlet pipeline of the washing mach...

Embodiment 3

[0065] Embodiment 3 provides a water inlet control method applied to the washing machine in the above embodiment, including: during the water inlet process of the washing machine, the control device controls the water inlet flow rate of the water inlet device according to the foam height detected by the foam detection device 5 , prevent the foam in the water storage tank 1 from overflowing from the overflow port 2.

[0066] Preferably, the foam detection device 5 detects the foam height in real time, and the control device controls the water inlet flow of the water inlet device in real time according to the foam height in the water storage tank 1 detected by the foam detection device 5;

[0067] In the above scheme, because the present invention uses a radar level gauge or an ultrasonic level gauge, it can detect the height of the foam in real time, and can detect foam at any height, so the radar level gauge or the ultrasonic level gauge is used as the foam detection device 5....

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Abstract

The invention discloses a washing machine. The washing machine comprises a water inlet device, the water inlet device comprises a water inlet and a water outlet, the washing machine further comprisesa foam detecting device, the foam detecting device emits a measurement signal to the water inlet device, the height of foams in the water inlet device is determined according to the receiving time ofan echo signal, and a control device of the washing machine controls the water inlet flow of the water inlet device according to the height of foams detected by the foam detecting device. In the washing machine, the foam detecting device is additionally arranged in the water inlet device, in this way, the foams are effectively prevented from overflowing from the water inlet device, contaminating ashock absorber or other components and rusting the interior of the washing machine, and then the normal service life of the washing machine is guaranteed.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a washing machine and a water inlet control method thereof. Background technique [0002] At present, the washing machines with washing powder drop boxes on the market lack the washing powder foam detection device of the drop box, and the fixed water inlet method is used for washing. When the user adds too much detergent or uses high-foaming detergent, the foam will flow out from the overflow port. . [0003] The invention patent with application number 201610071275.3 discloses a drum washing machine and its foam detection method. The foam detection method of the drum washing machine includes: step S1: enter the washing program; step S2: turn on the electric heater (1) for heating, and detect the water level frequency; step S3: compare the detected water level frequency with the washing reference frequency , and judge whether the foam is excessive according to the comparison...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02D06F39/08D06F39/06
CPCD06F2202/02D06F2204/086D06F39/06D06F39/088D06F33/00
Inventor 李文伟吴军潘光辉王海波王光锋王育宝
Owner HEFEI HAIER DRUM WASHING MASCH CO LTD
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