Lower cover structure of closed type compressor

Abstract

The invention discloses a lower cover structure of a closed type compressor. The closed type compressor comprises a shell, wherein the shell comprises a cylinder body, an upper cover, a lower cover and the like; a motor and a compressor component are arranged in the shell; the motor comprises a stator, a rotor, a crank shaft and the like; the compressor component comprises a cylinder, an upper bearing, a lower bearing and the like; and an exhaust pipe is arranged on the upper cover. A plurality of continuous convex rings and concave rings are formed on the lower cover, and sound deadening cavities are formed between the convex rings and the concave rings. By the lower cover structure of the closed type compressor, the noise reflection area of the inner wall of the lower cover is effectively increased, the noise reflection path is prolonged, the noise scattering is increased, and the noise of the compressor is reduced by about 1 to 2 dB, so the environment is quieter and more comfortable, and simultaneously the rigidity and the strength of the lower cover are improved.

Description

technical field [0001] The invention belongs to a compressor, in particular to a method in which a plurality of continuous convex rings and concave rings are formed on the lower cover of a hermetic compressor, and a muffler cavity is formed between the convex rings and the concave rings so as to reduce the noise of the compressor. The lower cover structure of the hermetic compressor. Background technique [0002] Such as Figure 1~3 As shown, the compressor in the prior art includes a motor assembly 20 installed on the inner upper side of the housing 1 , and a compressor assembly 30 installed at a certain distance on the lower side of the motor assembly 20 . The casing 1 is composed of a hollow cylindrical body 11 , an upper cover 12 and a lower cover 13 , and the lower cover 13 is installed on a base 14 . The motor assembly 20 is press-fitted and fixed on the inner peripheral surface of the cylinder 11, and it is composed of a stator 21, a rotor 22, and a rotating cranksha...

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Problems solved by technology

[0005] However, in the hermetic compressors of the prior art, the lower cover of the compressor is smooth and arc-shaped, which has no effect on improving the noise generated by the compressor. If the noise is reduced, the thickness of the lower cover or the cylinder can only be increased, which is bound to Cause waste of raw materials and increase product cost

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