Noise deadener and air conditioning system

A technology of air conditioning system and muffler, applied in air conditioning system, space heating and ventilation, household heating and other directions, can solve the problem of inability to effectively reduce low-frequency noise, and achieve the effect of reducing compressor noise and improving low-frequency noise reduction.

Inactive Publication Date: 2017-05-31
MIDEA GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a muffler, which aims to solve the problem that the low-frequency noise cannot be effectively reduced in the prior art

Method used

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  • Noise deadener and air conditioning system
  • Noise deadener and air conditioning system
  • Noise deadener and air conditioning system

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in t...

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Abstract

The invention discloses a noise deadener and an air conditioning system. The noise deadener comprises a shell, an input pipe, an output pipe and multiple resonance units, wherein the input pipe and the output pipe are arranged outside the shell; and the multiple resonance units are arranged inside the shell and are tubular. The input pipe and the output pipe are connected to opposite side walls of the shell correspondingly. The resonance units are distributed in a periodic manner and extend in the transverse direction of the input pipe. Openings are formed in the pipe walls of the resonance units. According to the noise deadener and the air conditioning system, the multiple tubular resonance units are arranged in the shell, and wideband response double negative parameters can be achieved. By means of the noise deadener, the low-frequency noise deadening amount can be increased; and by adjusting the conduction rate of the resonance units, a phononic band gap can be made to move toward the low frequency, and thus a good effect can be obtained in the aspects such as reduction of low-frequency noise such as noise of a compressor.

Description

technical field [0001] The invention relates to the technical field of noise reduction, in particular to a noise reduction device and an air conditioning system. Background technique [0002] With the development of modern industry, environmental pollution is also produced. Noise pollution is a kind of environmental pollution, which has become a great harm to human beings. In the noise control technology, the noise of the outdoor unit of the air conditioner has always been an urgent problem to be solved. Among them, the medium and high frequency noise of the outdoor unit of the air conditioner can be reduced by means of resistive sound absorption, for example, by wrapping the pipe with sound insulation cotton, etc., while the low frequency noise can only be solved by inserting a muffler in the pipeline. The commonly used mufflers are mainly expansion mufflers, but due to their high cut-off frequency and large flow resistance, they cannot effectively reduce the low-frequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/40
CPCF24F1/40
Inventor 李珊
Owner MIDEA GRP CO LTD
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