Master fuse module

• US 7,990,738 B2
• Filed: 04/02/2008
• Issued: 08/02/2011
• Est. Priority Date: 04/02/2008
• Status: Active Grant

• Current Assignee: Littlefuse Incorporated
• Original Assignee: Littelfuse Incorporated
• Inventors: Froehlke, Heiko, Stumpo, Greg, Bold, Gary M., Urrea, Julio
• Primary Examiner(s): Levi; Dameon E
• Application Number:
  US12/061,321
• Publication Number:
  US 20090251200A1
• Time in Patent Office: 1,217 Days
• Field of Search: 361/833, 361/835, 361/837, 439/620.26, 439/620.27, 439/620.29
• US Class Current: 361/833
• CPC Class Codes: H01H 2001/5877 with provisions for direct mounting on a battery pole
• CPC Class Codes: H01H 2085/025 Structural association with a binding post of a storage battery
• CPC Class Codes: H01H 85/12 Two or more separate fusible members in parallel
• CPC Class Codes: Y10T 29/49107 Fuse making

Abstract

A master fuse module includes a base housing configured to be disposed on a battery, a fuse assembly connected to the base housing, and a cover disposed on the base housing. The fuse assembly includes a first generally planar portion including a first terminal, a second generally planar portion disposed generally perpendicular to the first generally planar portion, a plurality of second terminals, and a plurality of fuses. Each fuse includes a first portion in electrical communication with the first terminal and a second portion in electrical communication with one of the plurality of second terminals. A fuse element is in electrical communication between the first and second portions and provides overcurrent protection by melting when subjected to a predetermined current. A plurality of connectors connects the fuse assembly to the base housing.

Claims

1. A master fuse module comprising:

a base housing configured to be disposed on a battery;

a fuse assembly connected to the base housing, comprising;

a first generally planar portion comprising a first terminal;

a second generally planar portion disposed generally perpendicular to the first generally planar portion;

a plurality of second terminals;

a plurality of fuses, each fuse comprising;

a first portion in electrical communication with the first terminal;

a second portion in electrical communication with one of the plurality of second terminals; and

a fuse element in electrical communication between the first and second portions and providing overcurrent protection by melting when subjected to a predetermined current;

a plurality of connectors connecting the fuse assembly to the base housing, wherein at least some of the plurality of connectors are disposed on the first portion and the second portion adjacent the fuse element of the at least one fuse; and

a cover disposed on the base housing such that the fuse assembly is disposed between the cover and the base housing.

2. The master fuse module of claim 1 wherein the cover is transparent.

3. The master fuse module of claim 1 wherein the cover is not in substantial physical contact with the fuse assembly.

4. The master fuse module of claim 1 wherein the cover provides a snap-fit connection with the base housing.

5. The master fuse module of claim 1 wherein the fuses are integrally formed with the fuse assembly.

6. The master fuse module of claim 1 wherein the plurality of connectors comprises a plurality of rivets, wherein the rivets are disposed through holes in the base housing and the fuse assembly.

7. The master fuse module of claim 1 wherein the first generally planar portion comprises an opening configured for connection to the terminal post of a battery.

8. The master fuse module of claim 1 wherein the fuse assembly is composed of a metal selected from copper, tin plated copper, silver plated copper, copper alloys, zinc, and mixtures thereof.

9. The master fuse module of claim 1 further comprising at least one connector for providing mechanical and electrical connection from at least one of the plurality of second terminals.

10. The master fuse module of claim 1 wherein the plurality of fuses comprises at least three fuses.

11. The master fuse module of claim 10 wherein at least one of the fuses is configured for electrical connection to a high current circuit of an automobile.

12. The master fuse module of claim 1 wherein at least one of the plurality of fuses is disposed on the second generally planar portion.

13. A master fuse module comprising:

a base housing configured to be disposed on an automobile battery;

a fuse assembly connected to the base housing, comprising;

a first generally planar portion comprising a first terminal, the first generally planar portion configured to be disposed on a top portion of the automobile battery;

a second generally planar portion disposed generally perpendicular to the first generally planar portion, the second generally planar portion configured to be disposed adjacent a side portion of the automobile battery;

a second terminal;

a fuse comprising;

a first portion in electrical communication with the first terminal;

a second portion in electrical communication with the second terminal; and

a fuse element in electrical communication between the first and second portions and providing overcurrent protection by melting when subjected to a predetermined current;

a plurality of connectors connecting the fuse assembly to the base housing, wherein at least some of the plurality of connectors are disposed on the first portion and the second portion adjacent the fuse element of the fuses; and

a cover disposed on the base housing such that the fuse assembly is disposed between the cover and the base housing, wherein the cover is not in substantial physical contact with the fuse assembly.

14. The master fuse module of claim 13 wherein the fuse is integrally formed with the fuse assembly.

15. The master fuse module of claim 13 wherein the fuse is disposed on the second generally planar portion.

16. A method of making a master fuse module, comprising:

providing a base housing configured to be disposed on a battery;

providing a metal sheet;

forming the metal sheet into a pattern including a plurality of fuses;

bending the metal sheet to provide a first generally planar portion comprising a first terminal and a second generally planar portion disposed generally perpendicular to the first generally planar portion to provide a fuse assembly comprising;

a plurality of second terminals;

the plurality of fuses, each fuse comprising;

a first portion in electrical communication with the first terminal;

a second portion in electrical communication with one of the plurality of second terminals; and

a fuse element in electrical communication between the first and second portions;

connecting the fuse assembly to the base housing with a plurality of connectors, wherein at least some of the plurality of connectors are disposed on the first portion and the second portion adjacent the fuse element of the at least one fuse; and

attaching a cover to the base housing such that the fuse assembly is disposed between the cover and the base housing.

17. The method of claim 16 wherein connecting the fuse assembly to the base housing with a plurality of connectors comprises riveting the fuse assembly to the base housing.

18. The method of claim 16 wherein the pattern of the metal sheet includes a plurality of rails extending between the fuses, farther comprising removing the rails before attaching the cover to the base housing.