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Centrifugal blade, centrifugal fan and air conditioner

A technology of centrifugal fan blades and fan blades, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of eddy current noise, ineffective drainage, and affecting the aerodynamic performance of centrifugal fan blades, so as to avoid eddy current noise, Eliminates the effect of vortex

Inactive Publication Date: 2015-07-29
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 and figure 2 As shown, the centrifugal fan blades in the prior art all include a fan blade body 10', a baffle 20', a sleeve receiving portion 30' and a rib 50' arranged on the baffle 20', and the above-mentioned baffle 20' They are all directly connected to the sleeve housing part 30', so that a right angle is formed between the sleeve housing part 30' and the partition plate 20', so that when the air flow changes from the axial direction to the radial direction, the partition board 20' cannot Effective drainage, affecting the aerodynamic performance of the centrifugal blades, resulting in eddy current noise

Method used

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  • Centrifugal blade, centrifugal fan and air conditioner
  • Centrifugal blade, centrifugal fan and air conditioner
  • Centrifugal blade, centrifugal fan and air conditioner

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Embodiment Construction

[0028] 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.

[0029] like Figure 3 to Figure 8 As shown, the embodiment of the present invention provides a centrifugal blade, including a blade body 10 and a partition 20 . The baffle 20 is arranged inside the blade body 10 and includes an arc-shaped transition portion 21, a baffle body 22 and a bushing accommodation portion 23. The baffle body 22 is arranged perpendicular to the axial direction of the blade body 10, and the bushing accommodating portion 23 extends along the axial direction of the blade body 10 and penetrates from the first side of the partition body 22 to the second side of the partition body 22 . The arc-shaped transition portion 21 is disposed at the connection between the above-menti...

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Abstract

The invention provides a centrifugal blade, a centrifugal fan and an air conditioner. The centrifugal blade comprises a blade body, and a separating plate which is arranged in the blade body, wherein the separating plate comprises a separating body and a shaft sleeve storing part; the separating plate body is arranged in the direction vertical to an axis of the blade body; the shaft sleeve storing part extends in the axis direction of the blade body and passes through the second side of the separating plate body from the first side; the separating plate further comprises an arc-shaped transition part which is arranged at the part in which the shaft sleeve storing part is connected with the separating plate body. According to the centrifugal blade, the arc-shaped transition section is arranged at the part in which the shaft sleeve storing part is connected with the separating plate body, and air can flow in the separating plate direction through the arc-shaped transition part, so that the vortex generated by the air during turning can be removed, and as a result, the purpose of reducing or avoiding vortex noise can be achieved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a centrifugal blade, a centrifugal fan and an air conditioner. Background technique [0002] At present, there are two types of centrifugal fan blades commonly used in air conditioners: double-side suction type and single-side suction type. Inhalation and radial ejection have the characteristics of large air volume, but there has always been the problem of high noise, which has plagued the entire air-conditioning manufacturer. After a lot of research, it is found that the eddy current noise inside the centrifugal fan blade is the main aspect of the noise. like figure 1 and figure 2 As shown, the centrifugal fan blades in the prior art all include a fan blade body 10', a baffle 20', a sleeve receiving portion 30' and a rib 50' arranged on the baffle 20', and the above-mentioned baffle 20' They are all directly connected to the sleeve housing part 30', so that a right angle is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/66
CPCF04D29/30F04D29/663F04D29/667
Inventor 张浩刘伯春李冰凝王磊刘志孝曹勇何国军
Owner GREE ELECTRIC APPLIANCES INC
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