Offset electrical terminal box with angled studs

• US 9,051,835 B2
• Filed: 10/03/2014
• Issued: 06/09/2015
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: Bitzer Kuhlmaschinenbau GmbH (Bitzer Se)
• Original Assignee: Bitzer Kuhlmaschinenbau GmbH (Bitzer Se)
• Inventors: Rogalski, Thomas
• Primary Examiner(s): BERTHEAUD, PETER JOHN
• Application Number:
  US14/505,663
• Publication Number:
  US 20150023820A1
• Time in Patent Office: 249 Days
• Field of Search: 417/410.1, 417/410.5, 417/422, 417/902, 361/22, 361/23, 361/117, 361/119, 361/600
• US Class Current: 1/1
• CPC Class Codes: F01C 21/10 Outer members for co-operation with rotary pistons; Casings casings for rotary engines or machines in general F16M
• CPC Class Codes: F04C 18/0207 both members having co-operating elements in spiral form
• CPC Class Codes: F04C 18/0215 where only one member is moving
• CPC Class Codes: F04C 2240/30 Casings or housings
• CPC Class Codes: F04C 2240/803 Electric connectors or cables; Fittings therefor
• CPC Class Codes: F04C 2240/805 Fastening means, e.g. bolts
• CPC Class Codes: F04C 2240/808 Electronic circuits (e.g. inverters) installed inside the machine
• CPC Class Codes: F04C 23/008 Hermetic pumps

Abstract

A compressor assembly includes a housing that is annular and surrounds a longitudinal central axis. The compressor also has a compressor housed in the housing, a terminal box, and a first stud coupling the terminal box with the housing. The first stud defines a first central axis. A second stud also couples the terminal box with the housing. The second stud defines a second central axis. Both the first and second central axes extend through the housing on the same side of the longitudinal central axis of the housing.

Claims

1. A compressor assembly comprising:

a housing that is annular and surrounds a longitudinal central axis;

a compressor housed in the housing;

a terminal box; and

a first stud coupling the terminal box directly to the housing, the first stud defining a first central axis; and

a second stud coupling the terminal box directly to the housing, the second stud defining a second central axis;

wherein both the first and second central axes do not intersect with the longitudinal central axis of the housing and extend through the housing on the same side of the longitudinal central axis of the housing.

2. The compressor assembly of claim 1, wherein the first central axis is substantially parallel to the second central axis.

3. The compressor assembly of claim 1, wherein second central axis of the second stud does not intersect the longitudinal central axis of the housing.

4. The compressor assembly of claim 1, wherein the first stud and the second stud are offset horizontally and vertically relative to one another.

5. The compressor assembly of claim 1, further comprising an external block and a protection module positioned within the terminal box;

wherein the first stud is arranged in a first plane that extends between the external block and the protection module; and

wherein the second stud is located in a second plane parallel and non-coextensive with the first plane, the first and second planes being vertical and including the first central axis and the second central axis respectively.

6. The compressor assembly of claim 1, wherein the terminal box includes first and second sidewalls;

wherein the first stud is a distance D from the second sidewall;

wherein the first stud is a distance D′

from the first sidewall; and

wherein D′

is greater than D.

7. The compressor assembly of claim 6, wherein the second stud is the distance D from the first sidewall;

wherein the second stud is the distance D′

from the second sidewall; and

wherein the first stud and the second stud are offset by the distance D′

−

D.

8. The compressor assembly of claim 1, wherein the volume defined by the portion of the terminal box between a plane in which the first stud is positioned and the second sidewall is greater than the volume defined by the portion of the terminal box between the second stud and the first sidewall.

9. The compressor assembly of claim 1, further comprising:

a block and a protection module disposed in the terminal box, wherein first and second sidewalls, a top wall, a bottom wall, and a back wall define the terminal box, and wherein the second stud is located closer to the first sidewall than the first stud.

10. The compressor assembly of claim 9, wherein a radius from the longitudinal central axis of the housing and the first central axis of the first stud define a non-zero angle.

11. The compressor assembly of claim 10, wherein a radius from the longitudinal central axis of the housing the second central axis of the second stud define a non-zero angle.

12. The compressor assembly of claim 11, wherein the first and second central axes are generally parallel with the first and second sidewalls;

wherein the block is proximate the first sidewall and the top wall;

wherein the protection module is proximate the second sidewall and the top wall; and

wherein at least one of the first and second studs are located between the block and the protection module.

13. The compressor of claim 10, wherein the second sidewall is longer in a direction generally parallel with the first central axis of the first stud than the first sidewall.

14. The compressor assembly of claim 9, wherein the back wall extends between the first and second sidewalls and includes a first portion coupled with and generally orthogonal to the first sidewall and a second portion coupled with and generally orthogonal to the second side wall;

and

wherein the second portion is longer than the first portion.

15. The compressor assembly of claim 14, wherein the housing includes a generally cylindrical portion;

wherein the back wall also includes a third portion coupling the first and second portions and

wherein the third portion of the back wall generally abuts and has a radius of curvature generally matched to the portion of the generally cylindrical portion of the housing with which it abuts.