Fuse holder assembly

• US 6,794,979 B2
• Filed: 04/26/2002
• Issued: 09/21/2004
• Est. Priority Date: 04/26/2002
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Sudan, Madhu, Martin, Javier Gomez, Pandit, Anilkumar Dinker, Vallejo, Jorge
• Primary Examiner(s): Vortman, Anatoly
• Application Number:
  US10/063,474
• Publication Number:
  US 20030201866A1
• Time in Patent Office: 879 Days
• Field of Search: 337/186-189, 337/208-211, 337/283, 337/284, 296/23
• US Class Current: 337/211
• CPC Class Codes: H01H 2085/2065 with base contacts adapted or adaptable to fuses of different lenghts; bases with self-aligning contacts; intermediate adaptation pieces
• CPC Class Codes: H01H 2085/207 Bases adapted to fuses with different end contacts or to other components, e.g. circuit breakers; intermediate adaptation pieces
• CPC Class Codes: H01H 85/0091 providing disconnection of the neutral line
• CPC Class Codes: H01H 85/545 with pivoting fuse carrier tumbler switch with built-in fuse H01H23/10

Abstract

A fuse holder and method of building the same, the fuse holder comprising: a fuse having a pair of fuse terminals; a housing configured to accept any fuse carrier selected from a plurality of fuse carriers, the housing defining an enclosed region adapted to accept the fuse; a pair of contacts within the housing at opposite ends of the enclosed region and configured to engage the fuse terminals; and a fuse carrier selected from the plurality of fuse carriers, the fuse carrier configured to support the fuse and position the fuse terminals in the enclosed region in electrical engagement with the pair of contacts.

Claims

1. A fuse holder comprising:

a fuse having a pair of fuse terminals;

a housing configured to accept any fuse carrier selected from a plurality of fuse carriers, said housing defining an enclosed region adapted to accept said fuse;

a pair of contacts within said housing at opposite ends of said enclosed region and configured to engage said fuse terminals; and

a fuse carrier selected from said plurality of fuse carriers, each fuse carrier of said plurality of fuse carriers configured to support a different fuse size including at least one terminal, said fuse carrier configured to support said fuse and position said fuse terminals in said enclosed region in electrical engagement with said pair of contacts.

2. The fuse holder of claim 1 wherein said fuse carrier is pivotally mounted on said housing, said fuse carrier is movable between a closed position, in which said pair of contacts electrically engage said fuse terminals, and an open position, in which said fuse can be inserted into said fuse carrier.

3. The fuse holder of claim 1 wherein said housing comprises:

a base; and

a cover secured to said base.

4. The fuse holder of claim 1 wherein said fuse carrier includes:

a fuse insertion region, said fuse insertion region is generally cylindrical having a diameter matched to said fuse terminals, said fuse insertion region having openings at either end configured to allow electrical communication between said pair of contacts and said fuse terminals.

5. The fuse holder of claim 4 wherein said fuse insertion region further includes:

an end stop formed on said fuse carrier and extending within said fuse insertion region to prevent further insertion of said fuse in said insertion region.

6. The fuse holder of claim 1 wherein said pair of contacts are configured as U-shaped clips having an interior surface defined by said U-shaped clip, said interior surface engages a diameter defined by said fuse terminals.

7. The fuse holder of claim 6 wherein said pair of contacts include entry chamfers formed on an edge of said contacts facing said fuse terminals.

8. The fuse holder of claim 7 wherein each contact of said pair of contacts includes a fuse contact spring biasing said interior surface against said diameter of said fuse terminals, said each contact is configured for electrical communication with a wire entering said housing.

9. The fuse holder of claim 1 wherein said pair of contacts comprise:

a U-shaped clip having an interior surface, said interior surface engages a diameter defined by said fuse terminals; and

a C-shaped clip having an exterior surface, said exterior surface engages an end of said fuse terminals.

11. The fuse system of claim 1 wherein said fuse carrier is pivotally mounted on said housing, said fuse carrier is movable between a closed position, in which said pair of contacts electrically engage said fuse terminals, and an open position, in which said fuse can be inserted into said fuse carrier.

12. The fuse system of claim 11 wherein said housing comprises:

a base; and

a cover.

13. The fuse system of claim 11 wherein said fuse carrier includes:

a fuse insertion region, said fuse insertion region is generally cylindrical having a diameter matched to said fuse terminals, said fuse insertion region having openings at either end configured to allow electrical communication between said pair of contacts and said fuse terminals.

14. The fuse system of claim 13 wherein said fuse insertion region further includes:

an end stop formed on said fuse carrier and extending within said fuse insertion region to prevent further insertion of said fuse in said insertion region.

15. The fuse system of claim 11 wherein said pair of contacts are configured as U-shaped clips having an interior portion defined by said U-shaped clip, said interior surface engages a diameter defined by said fuse terminals.

16. The fuse system of claim 15 wherein said pair of contacts include entry chamfers formed on an edge of said contacts facing said fuse terminals.

17. The fuse system of claim 16 wherein each contact of said pair of contacts include a fuse contact spring biasing said interior surface against said diameter of said fuse terminals, said each contact is configured for electrical communication with a wire entering said housing.

18. The fuse system of claim 11 wherein said pair of contacts comprise:

a U-shaped clip having an interior surface, said interior surface engages a diameter defined by said fuse terminals; and

a C-shaped clip having an exterior surface, said exterior surface engages an end of said fuse terminals.

10. A fuse system for fuse protection to a distribution circuit;

said fuse system comprising;

an electrical enclosure;

a circuit entering said electrical enclosure;

a fuse holder connected to said circuit, said fuse holder including

a fuse having a pair of fuse terminals;

a housing configured to accept any fuse carrier selected from a plurality of fuse carriers, said housing defining an enclosed region adapted to accept said fuse;

a pair of contacts within said housing at opposite ends of said enclosed region and configured to engage said fuse terminals; and

a fuse carrier selected from said plurality of fuse carriers, each fuse carrier of said plurality of fuse carriers configured to support a different fuse size including at least one of a different overall length of said fuse and a different maximum diameter of said fuse terminals, said fuse carrier configured to support said fuse and position said fuse terminals in said enclosed region in electrical engagement with said pair of contacts.

19. A method of assembling a fuse holder comprising a housing having a cavity therein for supporting a fuse carrier, said method comprising:

selecting a fuse carrier from a plurality of fuse carriers, each fuse carrier of said plurality of fuse carriers configured to support a different fuse size including at least one of a different overall length of a fuse and a different maximum diameter of a pair of fuse terminals, said selecting being based on a desired current rating for a fuse to be fitted within said housing;

configuring said fuse carrier to accept and position said fuse for engagement with contacts disposed within said housing;

configuring said cavity to accept said plurality of fuse carriers; and

installing said selected fuse carrier in said housing.