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Fan assembly provided with noise-reduction volute tongue and air conditioner

A component and fan technology, which is applied in the field of fan components and air conditioners, and can solve the problems of high noise in the operation of centrifugal fans

Pending Publication Date: 2019-04-26
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 fan assembly and an air conditioner with noise-reducing volute tongues are provided to solve the problem in the prior art that evenly spaced volute tongues tend to generate peak noise, resulting in high operating noise of the centrifugal fan

Method used

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  • Fan assembly provided with noise-reduction volute tongue and air conditioner
  • Fan assembly provided with noise-reduction volute tongue and air conditioner
  • Fan assembly provided with noise-reduction volute tongue and air conditioner

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Embodiment Construction

[0025] 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.

[0026] like Figure 3 to Figure 5 As shown, the fan assembly with a noise-reducing volute according to Embodiment 1 includes a volute 10 , a volute 20 and a wind wheel 30 disposed in the volute 10 . The value of the distance A between the volute tongue 20 and the outer edge of the wind wheel 30 passes through at least a predetermined variation trend along the axial direction of the wind wheel 30 . Wherein, the predetermined change trend is: the value of the distance A increases gradually, decreases gradually, and then increases gradually.

[0027] Applying the fan assembly of this embodiment, the value of the distance A between the volute tongue 20 and the outer edge of the wind wheel 30 passes through at least the aforementioned predetermined variation trend along the axial direction...

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Abstract

The invention discloses a fan assembly provided with a noise-reduction volute tongue and air conditioner. The fan assembly comprises a volute housing, a volute tongue, and a wind wheel which is arranged in the volute housing, wherein the distance A from the volute tongue to the outer edge of the wind wheel is subjected to at least preset variation trend in the axial direction of the wind wheel; the preset variation trend is that the distance A gradually increases, gradually decreases and gradually increases again; or the distance A gradually decreases, gradually increases and gradually decreases again. According to the technical scheme, the fan assembly effectively solves the problem that uniformly-spaced volute tongues in the prior art easily cause peak noise, resulting in loud running noise of a centrifugal fan.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a fan assembly with a noise-reducing volute tongue and an air conditioner. Background technique [0002] like figure 1 and figure 2 As shown, in the prior art, an air conditioner centrifugal fan includes a volute 1 , a volute tongue 2 arranged on the volute 1 , and a centrifugal fan 3 arranged in the volute 1 . Wherein, the volute tongue 2 is a flat structure, the tongue tip 4 is straight, and the extension direction of the tongue tip 4 is parallel to the rotation axis of the centrifugal fan 3 . Therefore, in the axial direction of the centrifugal rotor 3 , the distance between the tongue tip 4 of the volute tongue 2 and the outer edge of the centrifugal rotor 3 is substantially constant. When the centrifugal fan 3 rotates, the above-mentioned equidistant volute tongues 2 are likely to generate peak noise, resulting in high operating noise of the centrifugal fan, which seriously...

Claims

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Application Information

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IPC IPC(8): F04D17/16F04D29/42F04D29/66
CPCF04D17/16F04D29/4226F04D29/4233F04D29/667
Inventor 李军华卢起彪郑小建黄晓清高嵩王泽钦
Owner GREE ELECTRIC APPLIANCES INC
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