Noise reduction system and method of washing machine and washing machine

A technology of noise reduction system and washing machine, which is applied to other washing machines, washing devices, sounding equipment, etc., can solve the problems of inconvenient maintenance, complex structure, poor adaptability, etc., and achieves convenient operation and maintenance, simple overall structure, and obvious noise reduction effect. Effect

Pending Publication Date: 2017-07-28
QINGDAO HAIER WASHING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure is relatively complex, and the requirements for the product are also very high. The dimensional accuracy of the Helmholtz through hole is high, which is difficult to achieve and is easily blocked by debris to affect the effect of sound absorption and noise reduction. Maintenance is also very inconvenient. At the same time, the noise frequencies produced by different washing machines are not the same, and the corresponding Helmholtz resonance sound-absorbing structures are also different, and the adaptability is poor.
[0005] At present, there is no simple and effective noise reduction device for the noise when the washing machine is running, especially the noise during dehydration

Method used

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  • Noise reduction system and method of washing machine and washing machine
  • Noise reduction system and method of washing machine and washing machine

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Such as Figure 1-2 As shown, in this embodiment, a noise reduction system for a washing machine 1 is provided, including

[0066] Noise collection module 2;

[0067] Noise processing module: processing the collected noise signal to obtain at least one frequency of main noise contribution;

[0068] Noise elimination module 3: including at least one long pipe 31 with adjustable length, to eliminate the noise contributed by the main noise;

[0069] And control module 4: adjust the length of the long pipe 31.

[0070] The noise elimination module 3 includes five long pipes 31, and the long pipes 31 are used to eliminate the noise mainly contributed by the noise.

[0071] The long tube 31 is a tubular structure with one end closed and the other end open and connected to the noise processing module; the long tube 31 can change in length along its length direction.

[0072] The control module 4 adjusts the length of the long pipe 31 to be 1 / 4 of the wavelength of a main n...

Embodiment 2

[0083] Such as Figure 1-2 As shown, in this embodiment, a noise reduction system for a washing machine 1 is provided, including

[0084] Noise collection module 2;

[0085] Noise processing module: processing the collected noise signal to obtain at least one frequency of main noise contribution;

[0086] Noise elimination module 3: including at least one long pipe 31 with adjustable length, to eliminate the noise contributed by the main noise;

[0087] And control module 4: adjust the length of the long pipe 31.

[0088] The long tube 31 is a tubular structure with one end closed and the other end open and connected to the noise processing module; the long tube 31 can change in length along its length direction.

[0089] The control module 4 adjusts the length of the long pipe 31 to be 1 / 4 of the wavelength of a main noise sound wave. internal offset.

[0090] The long tube 31 includes at least two sets of tubes with different sizes but matching shapes, the small size tu...

Embodiment 3

[0100] Such as Figure 1-2 As shown, in this embodiment, a noise reduction system for a washing machine 1 is provided, including

[0101] Noise collection module 2;

[0102] Noise processing module: processing the collected noise signal to obtain at least one frequency of main noise contribution;

[0103] Noise elimination module 3: including at least one long pipe 31 with adjustable length, to eliminate the noise contributed by the main noise;

[0104] And control module 4: adjust the length of the long pipe 31.

[0105] The difference from the second embodiment is that at least two groups of noise elimination modules 3 are arranged in different positions inside the washing machine cabinet 11 , and each group of noise elimination modules 3 includes at least one long pipe 31 . Each group of noise elimination modules 3 is connected with a group of control modules 4, and its own control module 4 controls its noise elimination.

[0106] The long pipe 31 is a quarter corrugated ...

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Abstract

The invention discloses a noise reduction system and method of a washing machine and the washing machine. The noise reduction system of the washing machine includes a noise collecting module, a noise processing module, a noise elimination module and a control module, wherein the noise processing module processes collected noise signals to obtain the frequency of at least one main noise, the noise elimination module includes at least one length-adjustable long pipe and eliminates the noise caused by the main noise, and the control module adjusts the length of the long pipe. The noise reduction system accurately eliminates the main noise different in frequency, especially in the dewatering stage of the washing machine, and the noise reduction effect is obvious; the noise is reduced without changing existing operation of the washing machine, the noise reduction system is not easily blocked so as to achieve the effect of noise reduction, and the noise reduction effect is obvious; the whole structure is simple, the reliability is high, and operation and maintenance are convenient.

Description

technical field [0001] The invention relates to a noise reduction system, a noise reduction method and a washing machine, in particular to a noise reduction system, a noise reduction method and a washing machine with the system for eliminating the noise during the operation of the washing machine. Background technique [0002] The bottom of most washing machines is open. During the dehydration operation of the washing machine, the noise generated inside the washing machine will be transmitted to the outside, and these noises are composed of different frequency noises. After reducing the noise contribution of these frequencies, the noise in the dehydration stage of the washing machine can be effectively reduced, and the product quality and user experience can be effectively improved. [0003] The Chinese patent application number 201410395520.7 discloses a pulsator washing machine with a noise sensor and its noise monitoring method. By comparing the monitored value with the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F39/00G10K11/16
CPCD06F39/00G10K11/16
Inventor 梁泉姬生园许梁
Owner QINGDAO HAIER WASHING MASCH CO LTD
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