Fuse assembly

• US 10,283,916 B2
• Filed: 01/16/2014
• Issued: 05/07/2019
• Est. Priority Date: 05/18/2010
• Status: Active Grant

• Current Assignee: Littelfuse Incorporated
• Original Assignee: Littelfuse Incorporated
• Inventors: Urrea, Julio, Bold, Gary M.
• Primary Examiner(s): Crum, Jacob R
• Application Number:
  US14/157,188
• Publication Number:
  US 20140134881A1
• Time in Patent Office: 1,937 Days
• Field of Search: 337188-189, 337191, 337227, 337256, 43962027
• CPC Class Codes: H01H 2085/025 Structural association with a binding post of a storage battery
• CPC Class Codes: H01H 2085/0555 Input terminal connected to a plurality of output terminals, e.g. multielectrode
• CPC Class Codes: H01H 85/044 General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified H01H85/046 - H01H85/048 take precedence
• CPC Class Codes: H01H 85/12 Two or more separate fusible members in parallel
• CPC Class Codes: H01H 85/205 Electric connections to contacts on the base
• CPC Class Codes: H01R 13/68 with built-in fuse

Abstract

A circuit protection assembly includes a mounting block, a unitary fuse assembly, a post assembly and a plug connector. The unitary fuse assembly is disposed the mounting block and includes a plurality of fuses each of which is defined by a portion of a bus plate disposed on the lower surface of the mounting block to form a first terminal of the fuse, a second terminal disposed at least partially on the upper surface of the mounting block and a fuse element connecting the first terminal and the second terminal. The post assembly is disposed at least partially within the mounting block and a post extending from the block. The plug connector extends from a portion of the first terminal of at least one of the plurality of fuses.

Claims

1. A circuit protection assembly comprising:

a mounting block having a wall disposed substantially orthogonal to upper and lower surfaces, a recess cavity in said upper surface;

a plug connector extending from a portion of said upper surface in a direction parallel to said upper surface to form a first terminal;

a unitary fuse assembly disposed at least partially around said mounting block, said unitary fuse assembly having a bus plate disposed under said lower surface to form a second terminal and a fuse element disposed adjacent to said wall and substantially orthogonal to and connecting said first terminal to said second terminal;

a connection segment extending from the bus plate in a direction transverse to the upper surface for facilitating connection to a source of power;

a cover disposed over said fuse element and removably coupled to said wall;

a fourth fuse terminal disposed adjacent said upper surface and a third fuse element disposed substantially orthogonal to said fourth fuse terminal and adjacent to said wall, said fourth fuse terminal having a centrally disposed aperture aligned with said recess cavity; and

a post partially disposed within said recess cavity and extending through said centrally disposed aperture.

2. The circuit protection assembly of claim 1, wherein said mounting block has a recess in said wall and said unitary fuse assembly comprises a terminal portion disposed in said recess to electrically connect said terminal portion to said first terminal.

3. The circuit protection assembly of claim 2, wherein said plug connector is a first plug connector, said portion of said upper surface is a first portion, and said fuse element is a first fuse element, said circuit protection assembly further comprising a second plug connector extending from a second portion of said upper surface to form a third terminal, said unitary fuse assembly having a second fuse element disposed adjacent to said wall and substantially orthogonal to and connecting said third terminal and said second terminal.

4. The circuit protection assembly of claim 3, wherein said recess is a first recess, said terminal portion is a first terminal portion, said mounting block has a second recess in said wall, and said unitary fuse assembly comprises a second terminal portion disposed in said second recess to electrically connect said second terminal portion to said third terminal.

5. The circuit protection assembly of claim 4, wherein said first fuse element is disposed a distance away from said wall to accommodate heat dissipation from said first fuse element.