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Centrifugal fan and air conditioner with same

A centrifugal fan and end point technology, applied in the direction of machine/engine, mechanical equipment, non-variable-capacity pump, etc., can solve the problem of high noise of centrifugal fan

Active Publication Date: 2014-11-19
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a centrifugal fan and an air conditioner with it, so as to solve the problem of high noise of the centrifugal fan in the prior art

Method used

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  • Centrifugal fan and air conditioner with same
  • Centrifugal fan and air conditioner with same
  • Centrifugal fan and air conditioner with same

Examples

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] Such as figure 2 and image 3 As shown, the centrifugal fan of this embodiment includes a hub 10, a chassis 20 and blades 30, the chassis 20 is sleeved on the hub 10, and there are a plurality of blades 30, and the plurality of blades 30 are arranged on the chassis 20 and arranged on the circumferential direction. On the outer side of the hub 10, the blade 30 includes an edge segment away from the hub 10 and protruding from the chassis 20, the edge segment includes a first surface 31 and a second surface 32 opposite to the first surface 31, the first surface 31 forms a back pressure surface, The second surface 32 forms a pressure surface, wherein the first surface 31 has a first conca...

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Abstract

The invention provides a centrifugal fan and an air conditioner with the centrifugal fan. The centrifugal fan comprises a hub (10), a base plate (20) and multiple vanes (30), wherein the base plate (20) is arranged on the hub (10) in a sleeved mode, and the multiple vanes (30) are arranged on the base plate (20) and are located on the outer side of the hub (10) in the circumferential direction. Each vane (30) comprises an edge section which is far away from the hub (10) and extends out of the base plate (20), wherein the edge section comprises a first surface (31) and a second surface (32) which is opposite to the first surface (31), a backpressure surface is formed by the first surface (31), a pressure surface is formed by the second surface (32), and the first surface (31) is provided with a first concave-convex structure used for weakening an eddy. By the adoption of the centrifugal fan, the problem that in the prior art, a centrifugal fan is high in noise is solved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a centrifugal fan and an air conditioner with the same. Background technique [0002] In recent years, with people's pursuit of quality of life, users have higher requirements on the noise of air-conditioning systems, especially in the field of indoor air-conditioning and ventilation. The fan is the only ventilation device in the air conditioning and ventilation equipment, and the fan is accompanied by the generation of aerodynamic noise while realizing energy conversion. The main source of noise in fan systems is aerodynamic noise. The centrifugal fan is a kind of fan. The working principle of the centrifugal fan is: the airflow is sucked in from the axial direction of the centrifugal fan, and under the action of centrifugal force, the airflow flows out from the radial direction of the centrifugal fan. In the existing technology, such as figure 1 As shown, the centri...

Claims

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Application Information

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IPC IPC(8): F04D29/30F04D29/68
Inventor 刘池张伟捷尚彬熊军
Owner GREE ELECTRIC APPLIANCES INC
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