Damped mobile compressor

Patent metadata

Field	Value
Publication number	US-11933285-B2
Application number	US-201917049731-A
Country	US
Kind code	B2
Filing date	Apr 19, 2019
Priority date	Apr 23, 2018
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

A damped compressor used in mobile appliances. The appliances may comprise a compressor which is disposed within a housing and is in fluid communication with a refrigerant system. Within the housing there is an improved damping or stabilizer system which limits movement of electric or mechanical portions, or both, of the compressor within the housing. At startup and shutdown, when oscillations of the components within the housing are generally maximized, the components are limited from contacting the housing internal structure so as to inhibit damage to the compressor and reduce the noise associated with such contact. The components are also damped from movement associated with the mobile application of the compressor.

First claim

What is claimed is:

1. A mobile refrigerant compressor, comprising:
a housing enclosing at least a motor and a compressor body;
a damper mount extending from one of said motor or said compressor body;
a first damper connected to said damper mount having an aperture to receive said damper mount;
a second damper connected to said damper mount having a second aperture to receive said damper mount;
a retainer disposed above said first damper and said second damper, and a bracket disposed below said first damper and said second damper, wherein said first and second dampers are captured between said retainer and said bracket, said retainer having a leg disposed at each lateral end of the retainer and each said leg capable of engagement with said first and second dampers to limit lateral movement;
a third damper engaging said housing and one of said motor or said compressor body, and,
wherein said retainer limits upward vertical movement and lateral movement, and said bracket limits downward vertical movement, by engagement with said first and second dampers.

2. The mobile refrigerant compressor of claim 1 , wherein said third damper is a spring.

3. The mobile refrigerant compressor of claim 2 , wherein said spring is one of a leaf spring, a coil spring or a conical spring.

4. The mobile refrigerant compressor of claim 1 , said first damper and said second damper limiting lateral movement of said motor and compressor body.

5. The mobile refrigerant compressor of claim 1 , said third damper being preloaded when said mobile refrigerant compressor is assembled.

6. The mobile refrigerant compressor of claim 1 , said second damper limiting motion in a direction opposite to said first damper.

7. The mobile refrigerant compressor of claim 1 , said first and second dampers being a rubber-like elastomer.

8. A mobile refrigerant compressor, comprising:
a housing having a first portion and a second portion;
a motor and a compressor defining compressor mechanicals disposed within said housing;
a damper mount defined on said one of said compressor mechanicals;
a lateral damper positioned on said damper mount, said damper mount engaging one of said compressor mechanicals or said housing, said lateral damper limiting lateral movement of at least one of said compressor mechanicals relative to said housing, said lateral damper having an aperture which receives said damper mount;
a vertical retainer positioned above said lateral damper which limits vertical movement of said compressor mechanicals, said vertical retainer having legs disposed at ends and positioned laterally outward of said lateral damper;
a bracket vertical portion depending from said vertical retainer and a lower portion wherein said lateral damper is located between said vertical retainer and said lower portion.

9. The mobile refrigerant compressor of claim 8 , said lateral damper being a first damper on a first side and a second damper on a second side of two sides of said housing.

10. The mobile refrigerant compressor of claim 9 , said first damper being two dampers and said second damper being two dampers.

11. The mobile refrigerant compressor of claim 9 further comprising a bracket disposed on said housing.

12. The mobile refrigerant compressor of claim 11 , said vertical retainer engaging said bracket.

13. The mobile refrigerant compressor of claim 12 , said vertical retainer fastened to said bracket.

14. The mobile refrigerant compressor of claim 12 , said vertical retainer engaging two dampers of said lateral damper on a first side of said two sides of said compressor.

15. The mobile refrigerant compressor of claim 14 , further comprising a second vertical retainer engaging two dampers of said second damper on a second side of said two sides of said compressor.

16. The mobile refrigerant compressor of claim 8 further comprising a lug formed in said housing beneath said lateral damper.

17. A mobile refrigerant compressor, comprising:
a housing having a compressor and motor therein, said housing configured to receive a fluid refrigerant for compression by said compressor;
a first damper disposed on a damper mount, said first damper having an aperture which receives said damper mount, said damper mount connected to one of said motor or said compressor;
a retainer engaging said first damper and providing an upper bound for said first damper said first damper limiting vertical motion, and said retainer having a leg depending from each lateral end of said retainer which engages said first damper to limit lateral motion.

18. The mobile refrigerant compressor of claim 17 , said retainer being substantially U-shaped.

19. The mobile refrigerant compressor of claim 18 , said retainer also limiting movement of said motor and compressor in a horizontal direction.

20. The mobile refrigerant compressor of claim 17 further comprising a boss disposed in said housing beneath said first damper.

21. The mobile refrigerant compressor of claim 17 , said first damper being two dampers spaced apart.

22. The mobile refrigerant compressor of claim 17 , said motor and compressor seated on one of springs or dampers.

Assignees

• Dometic Sweden Ab

Inventors

• Allard James E
• Smith Mark L
• Wang Peng

Classifications

• F04B39/12 Primary

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

• F04B39/0044

  with vibration damping supports · CPC title

• F25B31/023

  with compressor of reciprocating-piston type · CPC title

• F25B2500/13

  Vibrations · CPC title

• F25B31/02 Primary

  of motor-compressor units · CPC title