Combined fuse holder and current monitor

• US 6,774,759 B2
• Filed: 05/18/2001
• Issued: 08/10/2004
• Est. Priority Date: 05/18/2001
• Status: Expired due to Term

• Current Assignee: Vertiv Corporation (Vertiv Holdings Co.)
• Original Assignee: Marconi Intellectual Property (Ringfence), Inc. (Marconi Holdings Company Limited)
• Inventors: Lewis, Scott C, Kolody, Timothy, Fattman, Kurt P., Trifiletti, Richard E.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US09/861,204
• Publication Number:
  US 20020170737A1
• Time in Patent Office: 1,180 Days
• Field of Search: 439/621, 439/487, 439/698, 439/857, 337/221, 340/638, 340/639, 324/117.R, 324/117.H, 324/126
• US Class Current: 337/221
• CPC Class Codes: H01H 2085/0266 Structural association with a measurement device, e.g. a shunt
• CPC Class Codes: H01H 85/0241 Structural association of a fuse and another component or apparatus switches with built-in fuses H01H9/10, spark-gap arresters H01H85/44, transformers and inductances H01F27/402, capacitors H01G2/14, lamps H01K1/66, semiconductors H01L23/5256 or H01L23/62
• CPC Class Codes: H01H 85/30 Means for indicating condition of fuse structurally associated with the fuse

Abstract

A combined fuse holder and shunt has a shunt integrated into a one-piece assembly between a fuse holder and a circuit connector. The housing for the connectors is made in two halves that are heat staked together after the connectors are inserted therein. Slots and ribs in the housing retain the connectors therein without requiring supplemental fasteners.

Claims

1. A combined fuse holder and current monitor comprising:

a two part housing, each housing part having opposite end walls, a bottom, one sidewall and an open side opposite from said one sidewall;

each end wall having a slot therein extending from said open side toward said one sidewall parallel to said bottom;

each sidewall having a plurality of vertical ribs thereon spaced-apart in a direction between said end walls;

said ribs having rib bottom ends spaced above said bottom;

said housing parts being secured together with said open sides thereof butted together;

a first connector having a first circuit connector terminal extending through said slot in one of said end walls and having a first fuse connector terminal within said housing, opposite side portions of said first fuse connector terminal being received between certain of said rib bottom ends and said housing bottom, said first fuse connector terminal having a first fuse connector extending upwardly therefrom between said sidewalls;

a second connector having a second circuit connector terminal extending through said slot in the other of said housing end walls and having a second fuse connector terminal within said housing, opposite side portions of said second fuse connector being received between certain other of said rib bottom ends and said housing bottom, said second fuse connector terminal having a second fuse connector extending upwardly therefrom between said sidewalls; and

a current monitoring device connected between said second circuit connector terminal and said second fuse connector terminal within said housing.

2. The combined fuse holder and shunt of claim 1 wherein said current monitoring device comprises a shunt.

3. The combined fuse holder and current monitor of claim 2 wherein said shunt is soldered between said second circuit connector terminal and said second fuse connector terminal.

4. The combined fuse holder and current monitor of claim 1 including a depression in said housing bottom, said second fuse connector terminal having a heat sink depending therefrom and extending into said depression.

5. The combined fuse holder and current monitor of claim 1 wherein each housing part has a partial top wall intersecting said sidewall and said ribs are integral with said top wall.

6. The combined fuse holder and current monitor of claim 1 wherein said current monitoring device comprises a shunt.

7. The combined fuse holder and current monitor of claim 1 wherein said current monitoring device comprises a shunt having a plurality of vertically-spaced parallel plates of manganin that extend parallel to said housing bottom.

8. A combined fuse holder and current monitor having a pair of circuit connectors, a pair of fuse connectors connected between said pair of circuit connectors, a current monitoring device connected between one of said fuse connectors and one of said circuit connectors, a two piece housing in which said fuse holder and current monitor are received, and each piece of said two piece housing having opposite end walls with slots therein through which said circuit connectors project.

9. A combined fuse holder and current monitor having a pair of circuit connectors, a pair of fuse connectors connected between said pair of circuit connectors, a current monitoring device connected between one of said fuse connectors and one of said circuit connectors, a two piece housing in which said fuse holder and current monitor are received, said housing including a bottom wall having a depression therein, said one of said fuse connectors to which said current monitor is connected having a heat sink thereon, and said heat sink being received in said depression.

10. The fuse holder of claim 9 wherein said depression has a slotted bottom wall.

11. A combined fuse holder and current monitor having a pair of circuit connectors, a pair of fuse connectors connected between said pair of circuit connectors, a current monitoring device connected between one of said fuse connectors and one of said circuit connectors, a two piece housing in which said fuse holder and current monitor are received, said housing including opposite sidewalls and a bottom wall, a plurality of spaced apart ribs on said sidewalls, said ribs having rib ends spaced above said bottom wall, and portions of said combined fuse holder and current monitor being received between said rib ends and said bottom wall.

12. The fuse holder and current monitor of claim 11 wherein said housing includes opposite end walls having end wall slots therein and said circuit connectors project through said end wall slots.

13. A combined circuit and fuse connector comprising:

a circuit connector terminal and a fuse connector terminal extending outwardly in opposite directions from opposite ends of a vertical portion generally perpendicular thereto, said fuse connector terminal having a slot opening outwardly generally perpendicular thereto for receiving a fuse terminal, a current monitoring device interposed between said circuit connector terminal and said fuse connector terminal and forming the sole connection therebetween, and said current monitoring device being interposed between said fuse connector terminal and said vertical portion.