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Volute and fan including the volute

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

Active Publication Date: 2017-09-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
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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 including the volute
  • Volute and fan including the volute
  • Volute and fan including the volute

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments, but it is not intended to limit the present invention.

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

[0025] By providing sound-absorbing holes 4 on the inner wall 2 of the volute, and forming a 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 internal...

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Abstract

The invention discloses a volute and a fan comprising the volute. The volute includes: the outer wall of the volute (1); the inner wall of the volute (2), which is sleeved in the outer wall of the volute (1), and forms a sound-absorbing cavity (3) with the outer wall of the volute (1), and the volute The inner wall (2) is provided with a sound-absorbing hole (4), and the sound-absorbing hole (4) communicates with the sound-absorbing cavity (3) and the volute inner cavity (6). According to the volute of the present invention, the problem of relatively large outflow noise of the fan in the prior art can be solved.

Description

Technical field [0001] The invention relates to the technical field of fan noise control, and in particular to a volute and a fan containing the volute. Background technique [0002] At present, due to various reasons such as structure and working conditions of most fans, it is difficult to guarantee the uniformity of flow in the flow cavity. The problems of separation flow, inter-blade vortex and backflow caused by uneven flow are all included in this list. Flow noise has a greater impact and will cause greater noise pollution. Summary of the invention [0003] The embodiment of the present invention provides a volute and a fan including the volute, so as to solve the problem of large fan noise in the prior art. [0004] In order to solve the above technical problems, an embodiment of the present invention provides a volute, which includes: an outer wall of the volute; an inner wall of the volute sleeved in the outer wall of the volute and forms a sound-absorbing cavity with the o...

Claims

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Application Information

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Patent Type & Authority Patents(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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