OFFSET ELECTRICAL TERMINAL BOX WITH ANGLED STUDS

• US 20130251549A1
• Filed: 03/23/2012
• Published: 09/26/2013
• 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
• Granted Patent: US 8,876,496 B2
• Time in Patent Office: Days
• US Class Current: 417/313
• 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 18/0215 where only one member is moving
• CPC Class Codes: F04C 2240/803 Electric connectors or cables; Fittings therefor
• 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 including a housing and a terminal box is provided. The terminal box is offset relative to the housing and coupled with the housing with angled studs.

Claims

1. A compressor assembly comprising:

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

a compressor housed in the housing;

a terminal box; and

a first stud coupling the terminal box with the housing, the first stud defining a first central axis;

wherein the central axis of the stud does not intersect the longitudinal central axis of the housing.

2. The compressor assembly of claim 1, further comprising a second stud coupling the terminal box with the housing, the second stud defining a second central axis;

wherein central axis of the second stud does not intersect the longitudinal central axis of the housing, and wherein the first and second studs are vertically aligned.

3. The compressor assembly of claim 2, wherein the first central axis and the second central axis are parallel.

4. The compressor assembly of claim 2, wherein the first stud and the second stud are offset horizontally and vertically relative to one another.

5. The compressor assembly of claim 2, 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 2, wherein the housing includes a generally cylindrical portion;

wherein the first stud and the second stud extend parallel to each other; and

wherein the first stud contacts the housing at a radially different location of the cylindrical portion than the second stud relative to the central axis.

7. The compressor assembly of claim 2, 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.

8. The compressor assembly of claim 7, 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.

9. The compressor assembly of claim 2, 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.

10. A compressor assembly comprising:

a housing;

a compressor housed in the housing;

first and second sidewalls, a top wall, a bottom wall, and a back wall defining a terminal box;

a block and a protection module disposed in the terminal box;

a first stud and a second stud, the studs coupling the terminal box to the housing;

wherein the second stud is located closer to the first sidewall than the first stud.

11. The compressor assembly of claim 10, wherein the housing includes a generally cylindrical shell portion defining a longitudinal central axis;

wherein the first stud defines a first central axis; and

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.

12. The compressor assembly of claim 11, wherein the second stud defines a second central axis;

and

wherein a radius from the longitudinal central axis of the housing the second central axis of the second stud define a non-zero angle.

13. The compressor assembly of claim 12, wherein the first and second central axes are parallel;

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.

14. The compressor of claim 11, wherein the second sidewall is longer in a direction generally parallel with the first central axis of the first stud than the first sidewall.

15. The compressor assembly of claim 10, wherein the housing includes a shell having a generally cylindrical portion;

and

wherein the open face of the terminal box lies in a plane that is non-parallel to a reference plane which is tangential to the generally cylindrical portion of the shell at at least one of the points of contact of the first stud and the second stud with the housing.

16. The compressor assembly of claim 10, 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.

17. The compressor assembly of claim 16, 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.

18. A compressor assembly, comprising:

a housing that is generally cylindrical about a vertical axis;

a compressor housed in the housing;

a terminal box having first and second sidewalls, a top wall, and a bottom wall, a back of the terminal box including an arcuate shape to conform to an outer surface of the housing;

the first and second sidewalls extending transversely between the top and bottom walls in spaced relation and the top and bottom walls extending transversely between the first and second sidewalls in spaced relation to define a box interior, the sidewalls extending from an open front side to the back;

a protection module disposed in the terminal box;

wherein the terminal box is non-symmetrically arranged on the housing with the first sidewall being shorter than the second sidewall so that the terminal box is deeper from front to back proximate the second sidewall as compared to the first sidewall.

19. The compressor assembly of claim 18, comprising an external block disposed in the terminal box, wherein the external block is arranged proximate the second sidewall in a deeper region of the terminal box and the protection module is arranged in a shallower region proximate the first sidewall.

20. The compressor of the claim 19, further comprising mounting studs securing the terminal box to the housing, the mounting studs being vertically and horizontally offset and arranged generally horizontally between the external block and a protection module.

21. The compressor of the claim 19, further comprising mounting studs securing the terminal box to the housing, the mounting studs being vertically and horizontally offset and arranged generally vertically between the external block and a protection module.