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Noise reduction device and cabinet

A noise reduction and cabinet technology, applied in the direction of sound-producing equipment, instruments, cooling/ventilation/heating renovation, etc., can solve the problems of limited space size, strict requirements on external structure size, and noise reduction structure that cannot meet the size requirements of cabinets, etc. Achieve the effect of strong applicability and meet size requirements

Active Publication Date: 2018-08-28
ZTE CORP
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Problems solved by technology

[0005] Among them, V is the volume of the cavity of the resonator, and λ is the wavelength of the sound wave. However, due to the complex internal structure of the high-end router cabinet, the limited space size, and stricter requirements on the external structure size, then, in the case of low-frequency noise, the existing The noise structure cannot meet the size requirements of the cabinet

Method used

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  • Noise reduction device and cabinet
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  • Noise reduction device and cabinet

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0028] An embodiment of the present invention provides a noise reduction device, figure 1 It is a schematic diagram of the structure of the noise reduction device in the embodiment of the present invention, such as figure 1 As shown, the noise reduction device is applied in a cabinet, including:

[0029] At least one noise reduction unit 10 with a cavity 101, the cavity 101 communicates with the air duct generated by the fan of the cabinet through the connection hole 103; each noise reduction unit 10 includes at least one partition 102 extending to the inside of the cavity 101 The structural dimensions of the connection hole 103 and the position information of the partition 102 in the cavity 101 are all determined by the frequency range of the noise generated by the fan.

[...

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Abstract

An embodiment of the invention discloses a noise reduction device, which is applied to a cabinet. The noise reduction device comprises at least one noise reduction unit having a cavity. The cavity iscommunicated with an air channel generated by a fan of the cabinet through a connection hole. Each noise reduction unit comprises at least one separator plate extending into the cavity. Structure sizeof the connection hole and position information of the separator plate in the cavity are determined by a noise band range generated by the fan. The embodiment also discloses the cabinet.

Description

technical field [0001] The invention relates to the field of noise reduction of cabinets, in particular to a noise reduction device and a cabinet. Background technique [0002] In order to reduce the noise interference of the cabinet, it is usually necessary to design a noise reduction structure for the cabinet. In the current noise reduction structure, such as the noise reduction structure based on the Helmholtz (Helmholtz) resonator, a larger volume is used to achieve a larger Sound capacity, and the larger the volume, the smaller the resonance frequency, so as to achieve noise reduction at low frequencies. [0003] The existing Helmholtz resonator based on the principle of resonance needs to satisfy the following formula: [0004] [0005] Among them, V is the volume of the cavity of the resonator, and λ is the wavelength of the sound wave. However, due to the complex internal structure of the high-end router cabinet, the limited space size, and stricter requirements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20G10K11/172G10K11/178
CPCG10K11/172G10K11/178H05K7/20572H05K7/20
Inventor 卢贤军王延松吴少勇杨京梁彬李丽娟张海龙程建春
Owner ZTE CORP
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