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Bottom shell structure of indoor unit, indoor unit and method for improving noise of indoor unit

A technology of indoor unit and shell structure, applied in heating mode, noise suppression, household heating and other directions, can solve the problem of fitting tolerance of parts and so on, and achieve the effect of reducing resonance

Active Publication Date: 2018-09-07
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of noise is related to the speed of the fan of the indoor unit, but it is not completely caused by the change of the speed of the fan. Due to the tolerance problem of parts and components in the actual assembly process
This kind of noise is very random, it may occur in batch models, or it may occur in individual models

Method used

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  • Bottom shell structure of indoor unit, indoor unit and method for improving noise of indoor unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The present invention provides a method for improving the noise of the indoor unit, by coating the bottom case 1 of the indoor unit with a damping rubber layer 2 to increase the quality of the air duct 4 formed between the bottom case 1 and the evaporator 6 , reduce the resonance between the fan 3 located in the air duct 4 and the air duct 4, and further reduce the noise generated near the air duct 4 through the damping and noise reduction effect of the damping rubber layer 2 itself. The air duct 4 is a channel formed between the bottom case 1 and the evaporator 6 above the bottom case 1 for the discharge of cold air, and the outer port of the air duct 4 is connected with an upper air deflector 10 and a lower air deflector 11 A volute tongue 8 is also provided on the air duct 4 , and the volute tongue 8 is located on one side of the fan 3 and is close to the outer port of the air duct 4 .

[0026] The mass of the bottom shell 1 coated with the damping rubber layer 2 is ...

Embodiment 2

[0037] The difference from Example 1 is that the damping rubber layer is coated on the inside of the bottom shell. When the damping rubber layer is coated on the inside of the bottom shell, it is closer to the air duct and directly absorbs the air generated in the air duct. The ability to make noise is stronger.

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Abstract

The invention relates to the field of air conditioning equipment, in particular to a bottom case structure of an indoor unit, the indoor unit, and a method of reducing the noise of the indoor unit. According to the method, the bottom case of the indoor unit is coated with a damping rubber layer, so that the weight of the bottom case is increased, and the resonance of the bottom case and a fan is reduced; due to the own shock absorbing and damping function of the damping rubber layer, noise generated near an air flue is further reduced. The bottom case structure of the indoor unit comprises the bottom case; the bottom case is arranged on the rear side of the indoor unit; at least part of the bottom case surrounds the air flue under the fan; the bottom case at least surrounding the lower part of the air flue is coated with the damping rubber layer. The indoor unit comprises the bottom case structure of the indoor unit. Being coated with the damping rubber layer, the bottom case is heavier, and the original vibration frequency is changed, so that the resonance of the air flue and the fan is reduced, and the purpose of noise reduction is achieved. Moreover, the damping rubber layer has the shock absorbing and damping function per se.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a bottom shell structure of an indoor unit, an indoor unit and a method for improving the noise of the indoor unit. Background technique [0002] Household split internal unit, since the indoor unit housing part is all made of injection molded parts, and the parts are relatively small in thickness, so in the actual use of the finished product, the indoor unit is likely to produce noise similar to whine when the customer actually needs super high-speed operation. . This kind of noise is related to the speed of the fan of the indoor unit, but it is not completely caused by the change of the speed of the fan. It is due to the tolerance problem of parts and components in the actual assembly process. This kind of noise is very random, and it may occur in batch models, or it may occur in individual models. [0003] Usually, because the indoor unit is mostly fixed on the indo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/00F24F13/20F24F13/24
CPCF24F1/0007F24F13/20F24F13/24F24F2013/247
Inventor 杨伟王喜成崔松林韦兴春李晓群张文天张婧宜
Owner GREE ELECTRIC APPLIANCES INC
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