A kind of suction muffler and compressor capable of improving muffler volume

Abstract

The invention discloses an inhale silencer capable of improving the silencing quantity and a compressor. The technical scheme is that the inhale silencer comprises a first shell and a second shell which is combined with the first shell to form a closed structure; the first shell is provided with a W-shaped structure for being matched with a motor stator; the closed structure is internally separated into a first expansion cavity, a third expansion cavity and a second expansion cavity, which are distributed according to a set length proportion; the first shell is internally provided with a firstdiversion pipe and a second diversion pipe, which are horizontally arranged according to a set length proportion; and air flows can enter from the first expansion cavity to the second expansion cavity through the first diversion pipe, and then enter the third expansion cavity through the second diversion pipe. The inhale silencer is capable of effectively avoiding the vibration and noise generated by internal shaking; the W-shaped structure is capable of improving the capacity of the silencer, improving the silencing quantity and preventing an oil discharge hole from oil absorption; a three-expansion cavity cascaded structure is adopted, and the lengths of the expansion cavities and the diversion pipes are distributed according to proportions, so that the silencing frequency band is widened and the silencing quantity is improved.

Description

technical field [0001] The invention relates to the field of refrigerator compressors, in particular to a suction muffler and a compressor capable of improving the muffler volume. Background technique [0002] The suction noise of the refrigerator compressor is an important source of the noise of the whole machine. The inventors found that most of the existing suction mufflers used by various compressor manufacturers adopt the four-part scheme of the upper and lower shells and the inner insertion tube, which has a complex structure, loose fit, easy loosening, and complicated and time-consuming assembly. Moreover, there is a guide pipe inside the suction muffler of the existing compressor, and the guide pipe is easy to generate vibration noise; the design of the oil drain hole is unreasonable, and the oil absorption capacity of the oil drain hole is large during operation, resulting in a large oil discharge of the compressor. Contents of the invention [0003] In order to ...

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Problems solved by technology

The inventor found that most of the suction mufflers used by various compressor manufacturers currently use a four-part scheme consisting of upper and lower shells and inner tubes. The structure is complex, the fit is not tight, it is easy to loosen, and the assembly is complicated and time-consuming

Moreover, there is a diversion pipe inside the suction muffler of the existing compressor, and the diversion pipe is easy to generate vibration noise; the design of the oil drain hole is unreasonable, and the oil absorption of the oil drain hole is large during operation, resulting in a large oil discharge of the compressor

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