Compressor protection module

• US 10,485,128 B2
• Filed: 07/16/2018
• Issued: 11/19/2019
• Est. Priority Date: 07/27/2012
• Status: Active Grant

• Current Assignee: Copeland Corporation LLC (Emerson Electric Company)
• Original Assignee: Emerson Climate Technologies Incorporated (Emerson Electric Company)
• Inventors: Trudeau, Jr., Edward J., Barnett, Kenneth R., Shelgaonkar, Yogesh, Khairnar, Manoj Pralhad
• Primary Examiner(s): Edwards, Anthony Q
• Application Number:
  US16/036,275
• Publication Number:
  US 20180332727A1
• Time in Patent Office: 491 Days
• Field of Search: 174 8, 174 1705, 174 50, 174520
• CPC Class Codes: F04B 49/06 Control using electricity regulating by means of floats actuating electric switches F04B49/04
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 49/10 Other safety measures
• CPC Class Codes: F04B 51/00 Testing machines, pumps, or pumping installations
• CPC Class Codes: F04C 28/28 Safety arrangements; Monitoring
• CPC Class Codes: F04D 27/008 Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
• CPC Class Codes: H02K 5/225 Terminal boxes or connection arrangements specially adapted for submersible motors H02K5/132
• CPC Class Codes: H05K 7/02 Arrangements of circuit components or wiring on supporting structure
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

A compressor may include a shell, a terminal assembly, an electronics module, and a molded plug. The terminal assembly may engage the shell and may include an outwardly extending conductor and a terminal fence at least partially surrounding said conductor. The electronics module may include a back plate having an opening through which said terminal fence is received. The back plate may include flexible tabs and a spring element. The flexible tabs may removably engage the terminal fence. The spring element may contact the shell and bias the back plate away from the shell. The molded plug may engage the terminal fence and may engage the conductor for electrical communication between the conductor and the molded plug.

Claims

1. A compressor comprising:

a shell;

a terminal assembly engaging said shell and including an outwardly extending conductor and a terminal fence at least partially surrounding said conductor;

an electronics module including a back plate having an opening through which said terminal fence is received, said back plate including flexible tabs and a spring element, said flexible tabs removably engaging said terminal fence, said spring element contacting said shell and biasing said back plate away from said shell; and

a molded plug engaging said terminal fence and engaging said conductor for electrical communication between said conductor and said molded plug.

2. The compressor of claim 1, wherein said spring element includes a resiliently compressible annular gasket.

3. The compressor of claim 2, wherein said annular gasket seals against said shell and said back plate.

4. The compressor of claim 3, wherein said back plate includes an annular recess at least partially surrounding said opening, and wherein said annular gasket is at least partially received in said annular recess.

5. The compressor of claim 1, wherein said terminal fence includes a plurality of apertures, and said flexible tabs include barbs engaging said apertures.

6. The compressor of claim 5, wherein said spring element biases said barbs into engagement with edges of said apertures.

7. The compressor of claim 5, wherein said terminal fence is received between said flexible tabs.

8. The compressor of claim 7, wherein said molded plug is received within said terminal fence.

9. The compressor of claim 1, wherein said electronics module includes a cover removably attached to said back plate, and wherein said back plate and said cover cooperate to form an enclosure in which a plurality of electronic components are disposed.

10. The compressor of claim 9, wherein said electronics module includes one or more indicator lights extending through one or more apertures formed in said cover.

11. The compressor of claim 9, wherein said cover includes a plurality of sleeves through which wires connected to said molded plug extend.

12. The compressor of claim 11, wherein said sleeves and said wires extend through current transformers disposed between said cover and said back plate.

13. The compressor of claim 9, wherein said cover includes a recess in which said molded plug is disposed, and wherein said molded plug is disposed outside of said enclosure formed by said back plate and said cover.

14. An electronics module comprising a back plate and an electronic component mounted to said back plate, said back plate including an opening receiving a terminal fence extending outward from a shell of a compressor, said back plate including flexible tabs and a spring element, said flexible tabs removably engaging said terminal fence, said spring element contacting said shell and biasing said back plate away from said shell.

15. The electronics module of claim 14, wherein said spring element includes a resiliently compressible annular gasket that seals against said shell and said back plate.

16. The electronics module of claim 15, wherein said back plate includes an annular recess at least partially surrounding said opening, and wherein said annular gasket is at least partially received in said annular recess.

17. The electronics module of claim 14, wherein said terminal fence includes a plurality of apertures, and said flexible tabs include barbs engaging said apertures, and wherein said spring element biases said barbs into engagement with edges of said apertures.

18. The electronics module of claim 17, wherein said terminal fence is received between said flexible tabs, and wherein a molded plug is received within said terminal fence, said molded plug in electrical communication with a conductor surrounded by said terminal fence.

19. The electronics module of claim 18, wherein said electronics module includes a cover removably attached to said back plate, and wherein said back plate and said cover cooperate to form an enclosure in which said electronic component is disposed.

20. The electronics module of claim 19, wherein said cover includes a recess in which said molded plug is disposed, and wherein said molded plug is disposed outside of said enclosure formed by said back plate and said cover.