Vibrating noise reducing B grade supporting fixed device of compressor

Abstract

The invention relates to the air conditioning technical field, specially relates to a second level support fixed device of a vibration noise decreasing compressor, solves the problem that the low frequency noise generated by the resonance of the vibration of the compressor and the shell of the air conditioner. The technical project to solve the problem comprises a compressor provided with three feet flakes separated in 120 degree and screwed connected on the air conditioner, the compressor screwed connected with the screw of the air conditioner and a rubber shock absorber cushion cross-under the screw and connected with the feet flakes of the compressor, wherein the three feet flakes provided with via holes are weld at the middle-lower part of the shell of the compressor, the bottom of the three feet flakes provided with via holes are connected with an utensil-shaped fixed frame that has the same three feet flakes that could contain the lower shell body of the compressor via rubber shock absorber cushion, the three feet flakes at the bottom of the fixed frame penetrates via the screw and connects with the chassis of the air conditioner via the rubber shock absorber cushion between the feet flakes and the chassis, to decrease the resonance noise generated by the vibration of the compressor and the shell of the air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a secondary support and fixing device for a compressor that reduces vibration and noise. Background technique [0002] Take the air conditioner as an example: In order to provide users with a comfortable temperature environment, as shown in Figure 6, the air conditioner uses A to compress the refrigerant in the low-temperature and low-pressure gas state into a high-temperature and high-pressure gaseous refrigerant; A condenser that converts the refrigerant into a medium-temperature and high-pressure liquid refrigerant and releases internal heat at the same time; C converts the medium-temperature and high-pressure liquid refrigerant in the condenser into a low-temperature and low-pressure liquid refrigerant; D converts the low-temperature and low-pressure liquid refrigerant into a low-temperature and low-pressure gaseous refrigerant and The refrigerant circulation pipelin...

AI Technical Summary

Problems solved by technology

[0007] However, as mentioned above, there are the following problems in the compressors installed on the chassis of various air conditioners through the damping rubber pads: as shown in Figure 1, the compressor is fixed on the chassis of the air conditioner with bolts through rubber damping rubber pads. Level support system, this kind of support fixes the low-frequency noise generated by the whole machine is still very large. The experiment found that when the noise of the compressor itself is not large, the humming sound generated by the resonance of the air conditioner casing and the compressor is 20-30 Decibels, as shown in Figure 2 for the primary support system, its vibration mechanics equation is: MX "+C(X'-U')+K(X-U)=Fsin(ωt), in the formula: the quality of M-compressor, X-vibration displacement of the compressor; C-damping coefficient of the damping pad; K-elastic coefficient of the damping pad; U-vibration displacement of the chassis; ω-vibration frequency of the compressor

According to the vibration caused by the rotation direction of the compressor is proportional to the displacement of the compressor, and inversely proportional to the square relationship between the inertia of the compressor and the rotation speed, the traditional way to reduce the vibration and noise of the compressor is to increase the balance of the internal rotating part, increase the The weight of the compressor is consistent, and the pipeline adopts anti-vibration materials and anti-vibration measures, but these will undoubtedly increase the cost of the product at the same time

Images