Reciprocating compressor

Patent metadata

Field	Value
Publication number	US-9850893-B2
Application number	US-201414582444-A
Country	US
Kind code	B2
Filing date	Dec 24, 2014
Priority date	Dec 27, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A reciprocating compressor is provided that may include a shell including a vibration absorbing member formed to be wound around an outer circumferential surface or an inner circumferential surface or stacked thereon, so that compressor vibration may be attenuated by frictional contact between the shell and the vibration absorbing member or between layers of the vibration absorbing member. Also a noise insulating layer may be formed between the shell and the vibration absorbing member or between the layers of the vibration absorbing member, so that a magnitude of noise may be reduced as vibration noise passes through the noise insulating layer, whereby vibration noise of the compressor, such as noise of a high frequency band, may be further attenuated by fine vibration.

First claim

What is claimed is:

1. A reciprocating compressor, comprising
a shell having an internal space;
a reciprocating motor installed in the internal space of the shell and having a mover that reciprocates;
a compression mechanism coupled to the mover of the reciprocating motor to reciprocate together to compress a refrigerant; and
at least one vibration absorbing member installed to cover an outer circumferential surface of the shell by two or more layers in order to form frictional contact between the shell and the at least one vibration absorbing member or between the two or more layers of the at least one vibration absorbing member to reduce noise by frictional damping,
wherein the shell and the at least one vibration absorbing member or layers of the at least one vibration absorbing member are spaced apart from one another by a predetermined gap to form a space therebetween,
wherein the at least one vibration absorbing member is formed as single plate wound around the shell such that the two or more layers of the at least one vibration absorbing member overlap with each other in a direction in which the vibration absorbing member is wound,
wherein the at least one vibration absorbing member is formed of a material having a stiffness greater than a stiffness of the shell, and wherein the vibration absorbing member is formed as a thin plate member which is equal to or thinner than a wall of the shell.

2. The reciprocating compressor of claim 1 , wherein the shell and the at least one vibration absorbing member or layers of the at least one vibration absorbing member are tightly attached.

3. The reciprocating compressor of claim 1 , wherein the shell and the at least one vibration absorbing member have cross-sections in different shapes to form the space.

4. The reciprocating compressor of claim 1 , wherein the at least one vibration absorbing member has an irregular cross-sectional shape to form the space.

5. The reciprocating compressor of claim 3 , wherein the at least one vibration absorbing member is embossed.

6. The reciprocating compressor of claim 1 , wherein an absorbing material is inserted in the space.

7. The reciprocating compressor of claim 1 , wherein the shell and the at least one vibration absorbing member are formed of different materials.

8. The reciprocating compressor of claim 7 , wherein the at least one vibration absorbing member is formed of a material lighter in weight than a material of the shell.

9. The reciprocating compressor of claim 1 , wherein the at least one vibration absorbing member is divided into two or more portions in a lengthwise direction of the shell.

Assignees

• Lg Electronics Inc

Inventors

• Ki Sunghyun
• Lee Sangmin
• Park Suho

Classifications

• F04B35/045 Primary

  using solenoids · CPC title

• F04B17/03

  driven by electric motors · CPC title

• F04C29/066

  with means to enclose the source of noise · CPC title

• F04D29/664

  by means of sound absorbing material · CPC title

• F04B39/121

  Casings · CPC title