Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit

A cross-flow wind wheel and cross-flow fan technology, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of increasing the rotation noise of the cross-flow wind wheel, and achieve the effect of reducing rotation noise and resonance

Inactive Publication Date: 2016-10-12
WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the blade passes through the volute tongue or the frequency of pressure and velocity pulses is the same as or has a common denominator with the vibration frequency of the surrounding environment, the vibrations of the two will superimpose at certain moments, resulting in resonance and increasing the cross-flow wind. wheel spinning noise

Method used

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  • Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit
  • Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit
  • Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a cross-flow wind wheel, a cross-flow fan and an air-conditioning indoor unit, wherein the cross-flow wind wheel includes a rotating shaft and an impeller mounted on the rotating shaft, and the impeller includes two end plates arranged in parallel, and a A plurality of blades correspondingly fixed to the two end plates, at least one of the end plates is fixed to the rotating shaft, the plurality of blades are distributed at intervals on a ring area around the axis of the rotating shaft, and the The number of leaves is a prime number. The technical scheme of the invention can reduce the rotation noise of the cross-flow wind wheel.

Description

technical field [0001] The invention relates to the field of home appliances, in particular to a cross-flow wind wheel, a cross-flow fan and an air-conditioning indoor unit. Background technique [0002] Due to its simple structure, small size, stable air flow, high dynamic pressure coefficient, and long reaching distance, the cross-flow wind wheel is widely used in ventilation equipment such as air conditioners. [0003] The cross-flow wind wheel is mainly used in the structure of indoor wall-mounted units in the field of air conditioning, so the requirements for its noise control are relatively high. During the working process of the cross-flow wind rotor, the fan blades move relative to the air flow, and the pressure on the windward side and the leeward side is different. At the outlet of the blade channel of the rotating impeller, the aerodynamic pressure and air velocity in the circumferential direction vary greatly. When the rotating blade channel passes over the narr...

Claims

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Application Information

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IPC IPC(8): F04D29/26F04D29/66F24F13/24
CPCF04D29/263F04D29/663F24F13/24F24F2013/245
Inventor 任志洁游斌
Owner WUHAN REFRIGERATION EQUIP OF MIDEA GROUP
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