Bottom case structure of indoor unit, indoor unit, and method of reducing noise of indoor unit

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...

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

Images