Fusible link and battery fuse unit containing the fusible link

• US 7,292,130 B2
• Filed: 10/27/2004
• Issued: 11/06/2007
• Est. Priority Date: 12/02/2003
• Status: Expired due to Fees

• Current Assignee: Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Original Assignee: Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Inventors: Nakamura, Masayoshi, Taga, Shunji
• Primary Examiner(s): Vortman; Anatoly
• Application Number:
  US10/973,339
• Publication Number:
  US 20050116805A1
• Time in Patent Office: 1,105 Days
• Field of Search: 337/159, 337/186, 337/187
• US Class Current: 337/159
• 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 85/044 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

Abstract

A fusible link adapted to be connected to a battery terminal and a compact and thin battery fuse unit that contains the fusible link and battery terminal. The link, formed by punching out an electrically conductive metallic plate, includes an input side connecting-section, an output side connecting-section, a fusible section having a narrow width and provided between the input and output side connecting-sections, and a resin section enclosing the fusible section. Coupling portions between the fusible section and the input and output side connecting-sections are molded in the resin section. The input and output side connecting-sections are arranged on the angled positions with respect to the fusible section. The fusible link and a battery terminal connected to the input side connecting-section of the fusible link are contained in a casing so that arc portions of the battery terminal are exposed from the casing. The arc portions engage a battery post.

Claims

1. A fusible link formed by punching out an electrically conductive metallic plate, comprising:

an input side connecting-section provided on an end with an inclined projection, the inclined projection is provided with a first bolt hole for joining a mating member, a battery terminal is provided on an end with a pair of fastening pieces for fastening a battery post, each of the fastening pieces is provided with a second bolt hole, and the first and second bolt holes are aligned axially and fastened to each other by bolt and nut means;

an output side connecting-section;

a fusible section having a narrow width and disposed between the input and output side connecting-sections; and

a resin section enclosing the fusible section;

coupling portions located between the fusible section and the input and output side connecting-sections, the coupling portions are molded in the resin section, the input and output side connecting-sections being disposed at respective angles relative to and in proximity to the fusible section.

2. The fusible link according to claim 1, further comprising:

a third bolt hole is provided in the output side connecting-section, and

a fourth bolt hole is provided in a male terminal connected to an end of an electrical cable, wherein the third and fourth bolt holes are aligned axially and fastened to each other by bolt and nut means.

3. The fusible link according to claim 1, wherein an electrical cable crimping barrel portion is provided on the output side connecting-section.

4. A battery fuse unit including the fusible link according to claim 1 and further comprising:

a battery terminal connected to the input side connecting-section of the fusible link, the unit containing the fusible link and battery terminal in a casing so that arc portions of the battery terminal enclose a battery post and are exposed from the casing, and the arc portions being adapted to engage the battery post.

5. A battery fuse unit including the fusible link according to claim 2 and further comprising:

a battery terminal connected to the input side connecting-section of the fusible link, the unit containing the fusible link and battery terminal in a casing so that arc portions of the battery terminal enclose a battery post and are exposed from the casing, and the arc portions being adapted to engage the battery post.

6. A battery fuse unit including the fusible link according to claim 3 and further comprising:

a battery terminal connected to the input side connecting-section of the fusible link, the unit containing the fusible link and battery terminal in a casing so that arc portions of the battery terminal enclose a battery post and are exposed from the casing, and the arc portions being adapted to engage the battery post.

7. The battery fuse unit according to claim 4, wherein the fusible link is formed into an L-shape in plan view and disposed on an end of the casing having a quadrangular shape in a front and rear direction, the battery terminal is disposed on a side of the casing in a right and left direction, the battery terminal is connected to the input side connecting-section of the fusible link, the output side connecting-section of the fusible link is disposed on the other side of the casing in the right and left direction and connected to an electrical cable connecting terminal or crimped on an electrical cable.

8. The battery fuse unit according to claim 5, wherein the fusible link is formed into an L-shape in plan view and disposed on an end of the casing having a quadrangular shape in a front and rear direction, the battery terminal is disposed on a side of the casing in a right and left direction, the battery terminal is connected to the input side connecting-section of the fusible link, the output side connecting-section of the fusible link is disposed on the other side of the casing in the right and left direction and connected to an electrical cable connecting terminal or crimped on an electrical cable.

9. The battery fuse unit according to claim 6, wherein the fusible link is formed into an L-shape in plan view and disposed on an end of the casing having a quadrangular shape in a front and rear direction, the battery terminal is disposed on a side of the casing in a right and left direction, the battery terminal is connected to the input side connecting-section of the fusible link, the output side connecting-section of the fusible link is disposed on the other side of the casing in the right and left direction and connected to an electrical cable connecting terminal or crimped on an electrical cable.