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Device for reducing noise of indoor unit of air conditioner and method thereof

An air conditioner indoor unit and noise technology, which is applied in the direction of noise suppression, airflow control components, etc., can solve problems such as abnormal dynamic balance, uneven wind pressure, and can not be solved, and achieves the purpose of avoiding noise, uniform wind pressure, and stable operation. Effect

Active Publication Date: 2010-05-05
四川长虹空调有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods can reduce the noise during the operation of the air conditioner to a certain extent, but they cannot solve the problem of uneven air flowing out through the heat exchanger of the indoor unit of the air conditioner or air passing through the indoor unit of the air conditioner during the operation of the air conditioner. After the heat exchanger of the air conditioner flows out, there is unevenness due to changes in environmental factors, resulting in uneven wind pressure on the outlet fan of the air conditioner, resulting in abnormal dynamic balance and noise problems

Method used

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  • Device for reducing noise of indoor unit of air conditioner and method thereof
  • Device for reducing noise of indoor unit of air conditioner and method thereof
  • Device for reducing noise of indoor unit of air conditioner and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] like figure 1 As shown, when the indoor unit of the air conditioner is running, due to the uneven air generated by the air entering the fan 2 due to the change of environmental factors, the air flows out through the heat exchanger 1 of the indoor unit of the air conditioner, resulting in the uneven wind pressure received by the fan 2 at the outlet of the air conditioner. The noise generated by the dynamic balance disorder.

[0029] like image 3 , Figure 7 As shown, a device 4 that can uniformize the air bundle is provided between the heat exchanger 1 and the fan 2, and the device is made into a curved surface structure composed of a plurality of through holes.

[0030] In particular, the area of ​​any through hole on the windward surface of the curved surface structure is S 0 , and 12.25πmm 2 ≥S 0 ≥πmm 2 .

[0031] Further, the ratio of the through hole area on the windward surface of the curved surface structure to the surface area of ​​the windward surface is...

Embodiment 2

[0036] like figure 2 As shown, when the indoor unit of the air conditioner is running, because the air entering the fan 2 flows out through the heat exchanger 1 of the indoor unit of the air conditioner, the air pressure at the outlet fan 2 of the air conditioner is not uniform due to the unevenness caused by the change of environmental factors. The noise generated by the dynamic balance disorder.

[0037] like Figure 4 , Image 6 As shown, a device 4 that can homogenize the air bundle is set between the electric heater 5 and the fan 2, and the device is made into a planar structure composed of a plurality of through holes.

[0038] In particular, the area of ​​any through hole on the windward surface of the planar structure is S 0 , and 12.25πmm 2 ≥S 0 ≥πmm 2 .

[0039] Further, the ratio of the area of ​​the through holes on the windward side of the planar structure to the surface area of ​​the windward side is the opening ratio, and the opening ratio is 65% to 95%....

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Abstract

The invention discloses a device for reducing the noise of an indoor unit of an air conditioner and a method thereof. The device can lead the air beam to be homogenized; and the method comprises: in the process that the air beam inside an air duct is discharged outside the air duct through an air outlet fan after being treated by heat exchanged by a heat exchanger, the air beam is treated by homogenization by using the device before the air beam flows into the air outlet fan. After being homogenized by the device, the homogenized air beam flows to the fan, so that uniform wind is applied to the fan; therefore, the fan is more stable in operation, the noise caused by shock and unbalance can be avoided, and the quality of the indoor unit of the air conditioner is improved.

Description

technical field [0001] The invention relates to a device and method for reducing noise, in particular to a device and method for reducing noise of an air conditioner indoor unit. Background technique [0002] With the improvement of social living standards, people's requirements for the environment are getting higher and higher, and there are more and higher requirements for air conditioners. One of the most important requirements is low noise. It is of great practical significance to take appropriate technical measures in the design of air-conditioning system to reduce the noise produced by the air-conditioner and maintain the comfort of the environment. [0003] At present, the noise of wall-mounted air conditioners is a complex acoustic system composed of various sound sources. The noise sources are mainly composed of the following: aerodynamic noise of cross-flow fans, mainly including rotating noise and eddy current noise; structural vibration noise; refrigerant noise....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/24F24F13/08
Inventor 吴长春何锦蓉
Owner 四川长虹空调有限公司
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