Compressor

Patent metadata

Field	Value
Publication number	US-11619216-B2
Application number	US-202117183920-A
Country	US
Kind code	B2
Filing date	Feb 24, 2021
Priority date	Mar 6, 2020
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

Disclosed is a compressor including a vibration attenuating member that fixes a driving assembly to be spaced apart from an inner circumferential face of a shell and reduces vibration or noise generated in the driving assembly.

First claim

What is claimed is:

1. A compressor comprising: a shell that defines an exterior appearance of the compressor; a driving assembly disposed inside the shell and spaced apart from an inner circumferential surface of the shell, the driving assembly being configured to compress refrigerant and comprising a discharge cover configured to discharge the refrigerant; and a vibration attenuating member that connects the driving assembly and the shell with each other and is configured to attenuate vibration of the driving assembly, wherein the vibration attenuating member comprises: a support portion that is in contact with the discharge cover and configured to receive the vibration of the driving assembly, the support portion having a first end and a second end and extending from the first end to the second end, and an attenuating portion that extends from the support portion and is coupled to the shell, the attenuating portion being configured to apply a force for pulling the support portion toward the shell and to attenuate the vibration transmitted from the driving assembly to the shell, wherein the attenuating portion comprises (i) a first attenuating portion that extends from the first end of the support portion and (ii) a second attenuating portion that extends from the second end of the support portion, wherein each of the first attenuating portion and the second attenuating portion comprises: an extension that extends from the support portion, a coupling portion that is in contact with the shell and coupled to the shell, and a coil that is disposed between the extension and the coupling portion and connects the extension to the coupling portion, and wherein the support portion protrudes away from the first attenuating portion and the second attenuating portion and surrounds an opposite side of the discharge cover that is disposed away from the first attenuating portion and the second attenuating portion with respect to the discharge cover.

2. The compressor of claim 1 , wherein the attenuating portion is configured to, based on deformation of the coil, vary a position of the extension with respect to the driving assembly.

3. The compressor of claim 1 , wherein the coil is spaced apart from the shell.

4. The compressor of claim 1 , wherein the coil is spaced apart from the driving assembly.

5. The compressor of claim 1 , wherein the driving assembly comprises:
a compression assembly including a cylinder and a piston, the piston being configured to compress the refrigerant in the cylinder, and
wherein the discharge cover is configured to discharge the refrigerant compressed in the cylinder.

6. The compressor of claim 1 , wherein the discharge cover comprises:
a contact portion that is in contact with the support portion; and
a non-contact portion that is not in contact with the support portion, and
wherein a circumferential length of the contact portion is greater than a circumferential length of the non-contact portion.

7. The compressor of claim 6 , wherein the discharge cover comprises a protruding portion that is supported by the support portion, the protruding portion defining a circumferential surface including the contact portion and the non-contact portion.

8. The compressor of claim 1 , wherein the coil comprises a plurality of turns arranged along an extending direction of the attenuating portion and configured to apply an elastic force to the shell and the driving assembly.

9. The compressor of claim 8 , wherein the shell defines a catching hole, and
wherein the coupling portion is inserted into the catching hole and in contact with an outer circumferential surface of the shell.

10. The compressor of claim 9 , wherein the coil has a first length in the extending direction, the first length being defined before the coil is inserted into the catching hole, and
wherein the coil is configured to, based on the coil being inserted into the catching hole, have a second length that is different from the first length in the extending direction.

11. The compressor of claim 10 , wherein the first length is less than the second length.

12. The compressor of claim 11 , further comprising a bracket that is disposed between the driving assembly and the inner circumferential surface of the shell and that supports the shell and the driving assembly spaced apart from the inner circumferential surface of the shell.

13. The compressor of claim 9 , wherein the vibration attenuating member further comprises an attenuating member disposed between the coupling portion and the catching hole and configured to attenuate vibration transmitted to the coupling portion.

14. The compressor of claim 13 , wherein the attenuating member is made of a sponge, a synthetic fiber, rubber, a wood fiber, a urethane material, or a plastic material.

15. The compressor of claim 1 , wherein the extension, the coupling portion, and the coil are integrally formed.

16. The compressor of claim 1 , wherein the driving assembly comprises:
a cylinder configured to receive the refrigerant;
a piston configured to compress the refrigerant in the cylinder; and
the discharge cover, the discharge cover being coupled to the cylinder and configured to discharge the refrigerant compressed in the cylinder.

17. The compressor of claim 16 , wherein the support portion has a curved shape extending along the discharge cover.

18. The compressor of claim 1 , wherein the first attenuating portion and the second attenuating portion are disposed at a first side with respect to a center of the discharge cover, and
wherein the opposite side of the discharge cover surrounded by the support portion is disposed at a second side opposite to the first side with respect to the center of the discharge cover.

19. The compressor of claim 18 , wherein the extension, the coil, and the coupling portion are disposed at the first side with respect to the center of the discharge cover.

Assignees

• Lg Electronics Inc

Inventors

• Lee Jongwoo
• Cho Hangjun

Classifications

• F05B2260/964

  by damping means · CPC title

• F16F15/085

  Use of both rubber and metal springs · CPC title

• F16F15/046

  using combinations of springs of different kinds (F16F15/085 takes precedence) · CPC title

• F04B39/0044 Primary

  with vibration damping supports · CPC title

• F04B53/16

  Casings; Cylinders; Cylinder liners or heads; Fluid connections · CPC title