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Indoor unit of air-conditioner

A technology for air-conditioning indoor units and inner chambers, applied in air-conditioning systems, space heating and ventilation, household heating, etc., can solve problems such as airflow disturbance, noise, and poor sound quality, and achieve the effect of improving sound quality

Inactive Publication Date: 2012-08-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, cross-flow fan blades are usually made of multi-section blades through ultrasonic welding, so that there are multiple middle-section shaft covers in the middle of the cross-flow fan blades. When air enters the cross-flow fan blades from the air inlet of the ventilation system, the airflow is captured Diverting, resulting in a sudden disturbance of the airflow, resulting in noise and poor sound quality

Method used

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  • Indoor unit of air-conditioner
  • Indoor unit of air-conditioner
  • Indoor unit of air-conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In order to solve the problems of the prior art, this embodiment proposes an air conditioner indoor unit 1, such as figure 1 , 2 As shown, it includes organic casing 3, fan blade, heat exchanger and volute device 4, and the fan blade, heat exchanger and volute device 4 are all arranged in the inner cavity of casing 3; The air flow blade 2, the cross-flow air blade 2 is arranged inside the volute device 4, and the volute device 4 is provided with a front volute tongue 42 and a rear volute tongue 43, wherein the air conditioner indoor unit 1 also includes a rectifying device 40 , the rectifying device 40 is arranged on the rear volute tongue 43 .

[0019] Further, the straightening device 40 includes a plurality of straightening blades 401 , and the straightening blades 401 are integrally formed with the rear volute tongue 43 of the volute device 4 .

[0020] Alternatively, the straightening device 40 includes a plurality of straightening blades 401 , and the straighten...

Embodiment 2

[0034] Such as Figure 5 , the difference between this embodiment and the first embodiment is that in some cases, the direction of the wind is restricted or the cross-flow blades of the oblique flow blades are used, namely:

[0035] The straightening blade 401 is a kind of oblique flow blade; alternatively, the cross-flow fan adopts an oblique flow blade.

[0036] The centerline of the section of the rectifying blade 401 intersects with the center plane of the middle shaft cover 21 of the cross-flow fan blade to form an included angle θ.

[0037] Further, the included angle θ between the centerline of the section of the rectifying blade 401 and the center plane of the middle shaft cover 21 of the cross-flow fan is: -20°≤θ≤20°.

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Abstract

The invention provides an indoor unit of an air-conditioner, which comprises a casing, blades, a heat exchanger, a volute device and a reflecting device. The blades, the heat exchanger and the volute device are all arranged in an inner chamber of the casing, the blades are cross-flow blades arranged inside the volute device, the volute device is provided with a front tongue and a back tongue, the reflecting device is disposed on the back tongue. The indoor unit of the air-conditioner solves the problem of disturbance noise generated when airflow entering the cross-flow blades abruptly is divided by an intermediate shaft cap and accordingly tone quality of the indoor unit of the air-conditioner is improved.

Description

technical field [0001] The invention relates to the structural technical field of air-conditioning equipment, in particular to an air-conditioning indoor unit adopting cross-flow fan blades. Background technique [0002] The air conditioner indoor unit includes an organic casing, fan blades, a heat exchanger and an air duct device; usually, the air duct device adopts a volute device, and a cross-flow fan blade and the volute device are used to cooperate to form a ventilation system. The overall cross-flow fan blade is a cylindrical structural part. In order to match the size of the air conditioner indoor unit in the length direction, the cross-flow fan blade is in the shape of a slender cylinder as a whole. Therefore, cross-flow fan blades are usually made of multi-section blades through ultrasonic welding, so that there are multiple middle-section shaft covers in the middle of the cross-flow fan blades. Diverting the flow, resulting in a sudden disturbance of the airflow, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00F24F13/24
Inventor 杜辉苏运宇李宁王成
Owner GREE ELECTRIC APPLIANCES INC