ELECTRICAL SWITCHING APPARATUS AND MOUNTING ASSEMBLY THEREFOR

• US 20110176287A1
• Filed: 01/18/2010
• Published: 07/21/2011
• Est. Priority Date: 01/18/2010
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: COOMER, JARROD LYLE, Metcalf, David Aaron
• Granted Patent: US 8,179,696 B2
• Time in Patent Office: Days
• US Class Current: 361/819
• CPC Class Codes: H01H 2071/565 using a add on unit, e.g. a separate rotary actuator unit, mounted on lever actuated circuit breakers
• CPC Class Codes: H01H 71/56 actuated by rotatable knob or wheel

Abstract

A mounting assembly is provided for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing having an exterior and an interior, separable contacts disposed in the interior, and an operating mechanism structured to open and closed the separable contacts. The exterior of the housing includes a recess. The mounting assembly includes a bracket assembly having at least one bracket, an expansion member coupled to a corresponding one of the at least one bracket and being disposed within the recess on the exterior of the housing, and an actuator movably coupled to the expansion member. The actuator is movable between an actuated position corresponding to the expansion member expanding outwardly within the recess to secure the mounting assembly to the circuit breaker, and an unactuated position corresponding to the expansion member not being expanded and the mounting assembly being removable from the circuit breaker.

Claims

1. A mounting assembly for an electrical switching apparatus, said electrical switching apparatus comprising a housing having an exterior and an interior, separable contacts disposed in the interior, and an operating mechanism structured to open and closed said separable contacts, the exterior of said housing comprising a recess, said mounting assembly comprising:

a bracket assembly including at least one bracket;

an expansion member coupled to a corresponding one of said at least one bracket and being structured to be disposed within said recess on the exterior of said housing; and

an actuator movably coupled to said expansion member, said actuator being movable between an actuated position corresponding to said expansion member being structured to expand outwardly within said recess to secure said mounting assembly to said electrical switching apparatus, and an unactuated position corresponding to said expansion member not being expanded and said mounting assembly being removable from said electrical switching apparatus.

2. The mounting assembly of claim 1 wherein said corresponding one of said at least one bracket comprises a retaining plate;

wherein said retaining plate includes a first side structured to face the exterior of the housing, and a second side disposed opposite the first side;

wherein said expansion member comprises a resilient element; and

wherein said actuator comprises a lever assembly, a number of generally planar members, and a number of fasteners fastening said resilient element and said generally planar members to said lever assembly.

3. The mounting assembly of claim 2 wherein said lever assembly is substantially disposed on the second side of said retaining plate;

and wherein said resilient element is disposed between a corresponding one of said generally planar members and the first side of said retaining plate.

4. The mounting assembly of claim 3 wherein said lever assembly includes a handle;

wherein said handle is movable between a first position corresponding to said actuator being disposed in said unactuated position, and a second position corresponding to said actuator being disposed in said actuated position; and

wherein, when said handle is moved from said first position toward said second position, said corresponding one of said generally planar members moves toward the first side of said retaining plate, thereby compressing said resilient element therebetween and causing said resilient element to expand outwardly.

5. The mounting assembly of claim 2 wherein said resilient element is a rubber block;

wherein said rubber block includes a first side, a second side disposed opposite and distal from the first side of said rubber block, and a number apertures;

wherein said number of generally planar members is a first plate member disposed on the first side of said rubber block and a second plate member disposed on the second side of said rubber block; and

wherein each of said number of fasteners extends through said first plate member, through a corresponding one of said apertures of said rubber block, through said second plate member, and through said retaining plate of said bracket assembly to fasten said first plate member, said rubber block, and said second plate member to said lever assembly.

6. The mounting assembly of claim 2 wherein the exterior of said housing further comprises a first edge, a second edge disposed opposite and distal from the first edge, and a cover extending between the first edge and the second edge;

wherein said recess is disposed on said cover;

wherein said retaining plate further comprises a first bracing portion extending perpendicularly outwardly from the first side of said retaining plate and a second bracing portion extending perpendicularly outwardly from the first side of said retaining plate opposite and distal from said first bracing portion; and

wherein, when said mounting assembly is secured to said electrical switching apparatus, said first bracing portion is structured to overlap the first edge of the exterior of said housing and said second bracing portion is structured to overlap the second edge of the exterior of said housing, thereby bracing said mounting assembly in a predetermined position with respect to said electrical switching apparatus.

7. The mounting assembly of claim 2 wherein said retaining plate further comprises a maneuvering handle;

and wherein said maneuvering handle is disposed on the second side of said retaining plate.

8. The mounting assembly of claim 1 wherein said at least one bracket of said bracket assembly comprises a retaining plate and a mount;

wherein said retaining plate includes a first side structured to face the exterior of said housing, and a second side disposed opposite the first side;

wherein said actuator comprises an actuating handle;

wherein said actuating handle is disposed on the second side of said retaining plate; and

wherein said mount is coupled to the second side of said retaining plate at or about said actuating handle.

9. The mounting assembly of claim 8 wherein said mount comprises a first wall and a second wall;

wherein said first wall extends perpendicularly outwardly from the second side of said retaining plate;

wherein said second wall extends perpendicularly outwardly from the second side of said retaining plate opposite and distal from said first wall; and

wherein said actuating handle is disposed between said first wall and said second wall.

10. The mounting assembly of claim 8 wherein said mount further comprises a planar portion;

wherein said planar portion extends between said first wall and said second wall;

wherein said bracket assembly further comprises an accessory housing;

wherein said accessory housing is coupled to the planar portion of said mount; and

wherein said accessory housing is structured to mount an accessory in a predetermined position with respect to said electrical switching apparatus.

11. The mounting assembly of claim 10 wherein said housing of said electrical switching apparatus further comprises a cover;

wherein said electrical switching apparatus further comprises a remote operating apparatus;

wherein said accessory is a number of components for said remote operating apparatus; and

wherein said accessory housing mounts said components in a predetermined position with respect to said electrical switching apparatus to enable said remote operating apparatus to operate said electrical switching apparatus remotely, without requiring said cover of said electrical switching apparatus to be opened.

12. An electrical switching apparatus comprising:

a housing having an exterior and an interior, the exterior of said housing comprising a recess;

separable contacts disposed in the interior;

an operating mechanism structured to open and closed said separable contacts; and

a mounting assembly comprising;

a bracket assembly including at least one bracket,

an expansion member coupled to a corresponding one of said at least one bracket, the expansion member being disposed within said recess on the exterior of said housing, and

an actuator movably coupled to said expansion member, said actuator being movable between an actuated position corresponding to said expansion member being expanded outwardly within said recess to secure said mounting assembly to said electrical switching apparatus, and an unactuated position corresponding to said expansion member not being expanded and said mounting assembly being removable from said electrical switching apparatus.

13. The electrical switching apparatus of claim 12 wherein said corresponding one of said at least one bracket of said mounting assembly comprises a retaining plate;

wherein said retaining plate includes a first side facing the exterior of the housing, and a second side disposed opposite the first side;

wherein said expansion member of said mounting assembly comprises a resilient element; and

wherein said actuator of said mounting assembly comprises a lever assembly, a number of generally planar members, and a number of fasteners fastening said resilient element and said generally planar members to said lever assembly.

14. The electrical switching apparatus of claim 13 wherein said lever assembly is substantially disposed on the second side of said retaining plate;

wherein said resilient element is disposed between a corresponding one of said generally planar members and the first side of said retaining plate;

wherein said lever assembly includes a handle;

wherein said handle is movable between a first position corresponding to said actuator being disposed in said unactuated position, and a second position corresponding to said actuator being disposed in said actuated position; and

wherein, when said handle is moved from said first position toward said second position, said corresponding one of said generally planar members moves toward the first side of said retaining plate, thereby compressing said resilient element therebetween and causing said resilient element to expand outwardly.

15. The electrical switching apparatus of claim 13 wherein the exterior of said housing further comprises a first edge, a second edge disposed opposite and distal from the first edge, and a cover extending between the first edge and the second edge;

wherein said recess is disposed on said cover;

wherein said retaining plate further comprises a first bracing portion extending perpendicularly outwardly from the first side of said retaining plate and a second bracing portion extending perpendicularly outwardly from the first side of said retaining plate opposite and distal from said first bracing portion; and

wherein, when said mounting assembly is secured to said electrical switching apparatus, said first bracing portion overlaps the first edge of the exterior of said housing and said second bracing portion overlaps the second edge of the exterior of said housing, thereby bracing said mounting assembly in a predetermined position with respect to said electrical switching apparatus.

16. The electrical switching apparatus of claim 12 wherein said at least one bracket of said bracket assembly comprises a retaining plate and a mount;

wherein said retaining plate includes a first side structured to face the exterior of said housing, and a second side disposed opposite the first side;

wherein said actuator comprises an actuating handle;

wherein said actuating handle is disposed on the second side of said retaining plate; and

wherein said mount is coupled to the second side of said retaining plate at or about said actuating handle.

17. The electrical switching apparatus of claim 16 wherein said mount comprises a first wall and a second wall;

wherein said first wall extends perpendicularly outwardly from the second side of said retaining plate;

wherein said second wall extends perpendicularly outwardly from the second side of said retaining plate opposite and distal from said first wall; and

wherein said actuating handle is disposed between said first wall and said second wall.

18. The electrical switching apparatus of claim 17 wherein said mount further comprises a planar portion;

wherein said planar portion extends between said first wall and said second wall;

wherein said bracket assembly further comprises an accessory housing;

wherein said accessory housing is coupled to the planar portion of said mount; and

wherein said accessory housing mounts an accessory in a predetermined position with respect to said electrical switching apparatus.

19. The electrical switching apparatus of claim 18 wherein said electrical switching apparatus further comprises a remote operating apparatus;

wherein said accessory is a number of components for said remote operating apparatus; and

wherein said accessory housing mounts said components in a predetermined position with respect to said electrical switching apparatus.

20. The electrical switching apparatus of claim 19 wherein said electrical switching apparatus is a circuit breaker;

wherein said circuit breaker further comprises an operating coupling;

wherein the exterior of said housing of said circuit breaker further comprises a cover;

wherein said operating coupling is disposed on said cover;

wherein said number of components comprises a drive mechanism and an interface shaft;

wherein said interface shaft includes a first end structured to be coupled to said operating coupling, and a second end being operatively coupled to said drive mechanism; and

wherein said accessory housing mounts said drive mechanism and said interface shaft in a predetermine position with respect to said circuit breaker, thereby enabling said remote operating apparatus to operate said circuit breaker remotely, without requiring said cover of said circuit breaker to be opened.