Fuse holder assembly having improved fuse clips for mounting on a printed circuit board

• US 5,519,586 A
• Filed: 10/11/1994
• Issued: 05/21/1996
• Est. Priority Date: 10/11/1994
• Status: Expired due to Term

• Current Assignee: Schneider Automation Incorporated (Schneider Electric SE)
• Original Assignee: Modicon, Inc. (Schneider Electric SE)
• Inventors: Byrd, Timothy J.
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): WHANG, YOUNG
• Application Number:
  US08/320,513
• Time in Patent Office: 588 Days
• Field of Search: 361/752, 361/796, 361/801, 361/833, 361/630, 361/835, 361/837, 174/50, 439/621, 439/622, 439/259-270, 439/830-833, 439/78, 439/845, 439/849, 337/188, 337/201, 337/212, 337/213, 337/214, 337/209, 337/210
• US Class Current: 361/833
• CPC Class Codes: H01H 2085/2085 Holders for mounting a fuse on a printed circuit
• CPC Class Codes: H01H 85/202 for fuses with ferrule type end contacts
• CPC Class Codes: H01H 85/2045 Mounting means or insulating parts of the base, e.g. covers, casings
• CPC Class Codes: H05K 3/301 by means of a mounting structure H05K3/325 takes precedence

Abstract

A fuse holder assembly (100) has a pair of fuse clips (23) which provide electrical connection between a fuse (22) and a circuit in a printed circuit board (15). The fuse holder assembly (100) securely holds a fuse (22) adjacent to an edge of the printed circuit board and in spaced relation to the printed circuit board (15) for easy access to the fuse and for maximizing the area on the printed circuit board available for circuit components or edge connector contacts. Each fuse clip (23) has a mounting base (25) for mounting to the printed circuit board and for providing electrical connection with the circuit on the printed circuit board, and a retention clip (33) attached to the mounting base. A support (55,58) supports the retention clip and provides access (53,70) to the retention clip for installation and removal of a fuse within the retention clip. The support (55,58) limits the movement of the retention clip with respect to the printed circuit board, while allowing resilient deformation of the clip for receiving and releasing a fuse.

Claims

1. A fuse holder assembly for electrical connection of a fuse to a circuit on a printed circuit board, comprising:

a pair of fuse clips, each fuse clip having a mounting base for mounting to the printed circuit board and for providing electrical connection with the circuit on the printed circuit board, and having retention means attached to said mounting base, said retention means having a resiliently deformable clip means formed therein for holding an end of a fuse, said mounting base and said retention means cooperating to hold an end of a fuse adjacent to an edge of the printed circuit board and in spaced relation to the printed circuit board; and

support means for supporting said retention means and for providing access for the resilient deformation of said clip means for installation and removal of a fuse within said clip means.

2. A fuse holder assembly according to claim 1, further comprising a support arm for mounting said retention means to said mounting base.

3. A fuse holder assembly according to claim 2, wherein said support arm comprises a first portion which extends perpendicular to a surface of the printed circuit board and a second portion which extends parallel to the surface of the printed circuit board, said support arm being mounted by said first portion to said mounting base, and said retention means being mounted to said support arm second portion.

4. A fuse holder assembly according to claim 3, wherein said support means comprises a first support surface for preventing movement of said support arm second portion towards the printed circuit board and a second support surface for preventing movement of said support arm second portion away from the printed circuit board.

5. A fuse holder assembly according to claim 3, wherein said support means is an enclosure having a first support surface for preventing movement of said support arm second portion towards the printed circuit board and a second support surface for preventing movement of said support arm second portion away from the printed circuit board.

6. A fuse holder assembly according to claim 5, wherein said enclosure further comprises alignment surfaces for aligning the ends of a fuse with said retention means.

7. A fuse holder assembly according to claim 5, further comprising means for maintaining the printed circuit board and said enclosure in fixed relation to one another.

8. A fuse holder assembly according to claim 1, wherein said clip means is a pair of opposed retention clip arms forming a channel for retaining a fuse.

9. A fuse holder assembly according to claim 1, further comprising means for maintaining the printed circuit board and said support means in fixed relation to one another.

10. A fuse holder assembly according to claim 1, wherein said support means is a housing.

11. A fuse holder assembly according to claim 1, further comprising an inspection port formed in said support means for inspection of a fused mounted in said retention means.

12. A fuse clip for use in a fuse holder assembly for electrical connection of a fuse to a circuit on a printed circuit board, comprising:

a mounting base for mounting to the printed circuit board and for providing electrical connection with the circuit on the printed circuit board;

a support arm having a first end and a second end, said support arm being attach at said first end to said mounting base; and

retention means attached to said support arm second end, said retention means having a resiliently deformable clip means formed therein for holding an end of a fuse, said mounting base, said support arm and said retention means cooperating to hold an end of a fuse in spaced relation to the printed circuit board.

13. A fuse clip according to claim 12, wherein said support arm comprises a first portion which extends perpendicular to a surface of the printed circuit board and a second portion which extends parallel to the surface of the printed circuit board, said support arm being mounted by said first portion to said mounting base, and said retention means being mounted to said support arm second portion.

14. A fuse clip according to claim 13, wherein the fuse holder assembly has a first support surface and a second support surface parallel to the first support surface, the first support surface preventing movement of said support arm second portion towards the printed circuit board and the second support surface preventing movement of said support arm second portion away from the printed circuit board.

15. A fuse clip according to claim 14, further comprising means for maintaining said retention means in fixed relation to the first and second support surfaces.

16. A fuse clip according to claim 13, wherein said clip means is a pair of opposed retention clip arms forming a channel for retaining a fuse.