A silencer

By designing a double-layer inlet adjustable structure in the muffler, the existing muffler is unable to compatible with pipeline systems of different sizes and the noise silence effect is reduced after the inlet diameter is increased, and the sound silence effect is achieved that adapts to the versatility of pipelines of different sizes and has a small impact on the noise silence.

CN112832984BActive Publication Date: 2025-03-25ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Patent Information

Application Number
CN202011424102.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-12-08
Publication Date
2025-03-25
Estimated Expiration
2040-12-08

AI Technical Summary

Technical Problem

The existing mufflers are not compatible with pipeline systems of different sizes, resulting in poor versatility, and the expansion ratio decreases after the inlet diameter increases, which reduces the sound silence effect.

Method used

A silencer is designed, adopting a double-layer inlet adjustable structure, including a first inlet tube, a second inlet tube, a silencer cylinder, a silencer outlet and a positioning strip. Through the coordination of the axial through hole and the boss, the inlet tube of different diameters can be matched, and the influence of the inlet diameter increase on the noise reduction volume is reduced through the design of the second inlet tube.

Benefits of technology

It is realized that the same silencer can match different inlet diameters. The increase in inlet diameter has little impact on the silencer's silence, and can silence more than the silencer of the expansion chamber with the same size inlet pipe diameter.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

A silencer relates to the technical field of silent air conditioners. A double-layer inlet adjustable structure is provided on the silencer, and the double-layer inlet adjustable structure includes a first inlet pipe, a second inlet pipe, a muffler barrel, a muffler outlet and a positioning strip; an axial through hole is provided on the first inlet pipe, a boss is provided on the outside of the second inlet pipe, and the second inlet pipe is provided inside the first inlet pipe, and the boss can cooperate with the upper and lower surfaces of the through hole, and the positioning strip cooperates with the boss to seal the through hole, and when the boss cooperates with the lower surface of the through hole, the positioning strip cooperates with the upper surface of the boss to achieve cooperation mode 1; when the boss cooperates with the upper surface of the through hole, the positioning strip cooperates with the lower surface of the boss to achieve cooperation mode 2. The present invention realizes the function of coordinating inlet pipes of different diameters by providing a double-layer inlet adjustable structure, and the increase in the inlet diameter has little effect on the sound reduction of the muffler.
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