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Silencing device, silencing system and cleaning equipment

A technology for noise reduction devices and cleaning equipment, which is applied to mechanical equipment, parts of pumping devices for elastic fluids, non-variable pumps, etc., and can solve problems such as poor elimination effect

Active Publication Date: 2019-03-01
ENNO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing mufflers are mainly aimed at high-frequency noise, but the effect of eliminating the low- and medium-frequency noise generated by cleaning equipment is not good.

Method used

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  • Silencing device, silencing system and cleaning equipment
  • Silencing device, silencing system and cleaning equipment
  • Silencing device, silencing system and cleaning equipment

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Embodiment Construction

[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0063] Such as figure 1 As shown, the embodiment of the present invention provides a noise reduction device, which may include: a noise reduction cavity 101, at least two air inlets 102, an air duct 103, and at least two perforations 104 disposed on the air duct, in,

[0064] Each of the air inlets 102 is disposed on the first end surface of the muffl...

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Abstract

The invention provides a silencing device, a silencing system and cleaning equipment. The silencing device comprises a silencing cavity, at least two air inlets, an air channel, and at least two through holes formed in the air channel, wherein the air inlets are arranged in the first end surface of the silencing cavity; the at least two air inlets correspond to the at least two through holes one by one, and the corresponding air inlets are matched with the through holes; the side wall of each air inlet and the side wall of the corresponding through hole matched with the air inlet are integrally formed; the air channel is used for guiding sound waves generated by an external fan so that the sound waves can penetrate through the through holes and the air inlets to enter the silencing cavity;and the sound waves and air in the silencing cavity interact and do reciprocating motion in the silencing cavity, so that sound energy of the sound waves is converted into heat energy. Through the scheme provided by the invention, low-medium-frequency noise can be effectively eliminated.

Description

technical field [0001] The invention relates to the technical field of noise reduction equipment, in particular to a noise reduction device, a noise reduction system and cleaning equipment. Background technique [0002] With the popularization of cleaning equipment such as vacuum cleaners and sweeping robots, the noise generated when cleaning equipment is working often affects people's life and work. Moreover, the noise generated when cleaning equipment is working has become one of the problems affecting the development of cleaning equipment. Therefore, eliminating the working noise of cleaning equipment has become one of the problems to be solved urgently. [0003] The muffler is a device that allows airflow to pass through, but can prevent or weaken the propagation of sound waves, and is one of the main measures to reduce noise. The existing mufflers are mainly aimed at high-frequency noises, but the elimination effect is not good for the low- and medium-frequency noises...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66
CPCF04D29/664F04D29/665
Inventor 杨东袁源潘米样张根源刘天文
Owner ENNO TECH CO LTD
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