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Volute and fan comprising volute

A volute, fan technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problem of loud fan outflow noise, and achieve the effect of improving noise quality, improving fan performance, and reducing noise

Active Publication Date: 2015-01-28
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the embodiment of the present invention, a volute and a fan including the volute are provided to solve the problem of relatively large outflow noise of the fan in the prior art

Method used

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  • Volute and fan comprising volute
  • Volute and fan comprising volute
  • Volute and fan comprising volute

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0024] see Figures 1 to 4 As shown, according to the embodiment of the present invention, the volute includes a volute outer wall 1 and a volute inner wall 2, the volute inner wall 2 is sleeved in the volute outer wall 1, and forms a sound absorption cavity 3 with the volute outer wall 1, The inner wall 2 of the volute is provided with a sound-absorbing hole 4 , and the sound-absorbing hole 4 communicates with the sound-absorbing cavity 3 and the inner cavity 6 of the volute.

[0025] By setting the sound-absorbing hole 4 on the inner wall of the volute and forming the sound-absorbing cavity 3 between the inner wall 2 of the volute and the outer wall 1 of the volute, a micro-perforated sound-absorbing structure can be formed, which can effectively absorb the noise generated by the int...

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PUM

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Abstract

The invention discloses a volute and a fan comprising the volute. The volute comprises a volute outer wall (1), and a volute inner wall (2) which is arranged on the volute outer wall (1) in a sleeve way and forms a sound-absorbing cavity (3) together with the volute outer wall (1), wherein sound-absorbing holes (4) are formed in the volute inner wall (2), and communicate the sound-absorbing cavity (3) with a volute inner cavity (6). According to the volute, the problem of high fan effluent noise in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of fan noise control, in particular to a volute and a fan including the volute. Background technique [0002] At present, due to various reasons such as the structure and working conditions of most fans, it is difficult to ensure the uniformity of the flow in the flow cavity. Flow noise has a greater impact and will cause greater noise pollution. Contents of the invention [0003] Embodiments of the present invention provide a volute and a fan including the volute, so as to solve the problem in the prior art that the outflow noise of the fan is relatively high. [0004] In order to solve the above technical problems, the embodiment of the present invention provides a volute, including: the outer wall of the volute; A sound absorption hole is provided, and the sound absorption hole communicates with the sound absorption cavity and the inner cavity of the volute. [0005] Preferably, a filter screen is pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/66
CPCF04D29/4206F04D29/663F04D29/422
Inventor 廖俊杰熊军彭勃刘池
Owner GREE ELECTRIC APPLIANCES INC
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