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Noise reduction hose, noise reduction device, air-conditioner indoor unit and air-conditioner outdoor unit

A technology of noise reduction and hose, which is applied in the field of noise reduction, can solve the problems of high noise and affecting hearing comfort, etc., and achieve the effect of reducing noise, improving market competitiveness, and improving hearing comfort

Active Publication Date: 2015-02-18
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a noise-reducing hose, aiming to solve the problem that the equipment with axial flow fan or diagonal flow fan in the prior art has a large noise and affects the hearing comfort

Method used

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  • Noise reduction hose, noise reduction device, air-conditioner indoor unit and air-conditioner outdoor unit
  • Noise reduction hose, noise reduction device, air-conditioner indoor unit and air-conditioner outdoor unit
  • Noise reduction hose, noise reduction device, air-conditioner indoor unit and air-conditioner outdoor unit

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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] Please also see Figure 1 to Figure 5 The noise reduction device provided by the first embodiment of the present invention includes a front panel 10, an air outlet 11 opened on the front panel 10, and an air guide ring 20 correspondingly arranged at the air outlet 11, and the air flow passes through the air outlet. The wind guide ring 20 is discharged from the air outlet 11, and the edge of the windward side of the wind guide ring 20 is outwardly formed with a flange 21, and the flange 21 of the wind guide ring 20 is formed between the front panel 10. There is an annular groove 22 , and a n...

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Abstract

The invention provides a noise reduction hose. The noise reduction hose is arranged to surround an air guide ring; a notch is formed in the noise reduction hose and two free ends are formed at the notch; the noise reduction hose is provided with a surface fitted with the air guide ring; the noise reduction hose is closely fitted with the air guide ring by use of connecting pieces connected to the two free ends or fixed on the air guide ring by use of the surface glued with the air guide ring; the noise reduction hose is provided with a sound absorption periphery made of a sound absorption material. The sound absorption periphery of the noise reduction hose is used for absorbing airflow pressure escaping from the air guide ring and reducing the airflow velocity to weaken the airflow, and therefore, the reflux and the eddy formed at the air guide ring can be effectively reduced, the noise in the inner cavity of a device can be greatly reduced and the tone quality and the hearing comfort are improved. The invention also provides a noise reduction device comprising the noise reduction hose, an air-conditioner indoor unit and an air-conditioner outdoor unit.

Description

technical field [0001] The invention belongs to the technical field of noise reduction, and in particular relates to a noise reduction hose, a noise reduction device, and an air conditioner indoor unit and an air conditioner outdoor unit with the noise reduction device. Background technique [0002] At present, most of the wind guide rings on the equipment with axial flow fans or oblique flow fans adopt the structure of flanging outwards and then expanding into bell mouths. In this way, a circle of flanges is formed on the windward side of the wind guide ring. As a result, when the fan blades are working, part of the air flow breaks away from the wind guide ring and blows to the front panel to form a backflow, and a large spiral flow is generated at the root of the wind guide ring, resulting in a large noise. The spiral flow noise formed here will It is transmitted to the outside of the above-mentioned equipment. Therefore, the equipment with axial flow fans or diagonal flow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/24
CPCF24F13/24F24F2013/242
Inventor 覃强刘阳
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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