# US 7,612,647 B2 · Fusible link

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- Number: US 7,612,647 B2
- Document ID: US7612647B2
- Status: Granted
- Kind: B2
- Application number: 11/521,340
- Filed: 2006-09-15
- Published: 2007-03-22
- Granted: 2009-11-03
- Earliest claimed: 2005-09-21
- Assignees: Yazaki Corporation
- Inventors: Shinya Onoda; Toshiharu Kudo; Yoshihiko Nakahama; Takanori Kawai
- Web page: https://patentgrep.com/patent/US7612647B2

## CPC

- H01H 85/2045: {Mounting means or insulating parts of the base, e.g. covers, casings}
- H01H 85/47: Means for cooling
- H01H 2085/0555: {Input terminal connected to a plurality of output terminals, e.g. multielectrode}
- H01H 2085/208: {specially adapted for vehicles}
- H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)

## Abstract

A plurality of fuse circuits are layered with a space therebetween in a housing. A fusible portion of one of the layered fuse circuits is offset from a fusible portion of an adjacent one of the layered fuse circuits perpendicularly to a direction in which the fuse circuits are layered. A connection plate of one of the layered fuse circuits is offset from a connection plate of an adjacent one of the layered fuse circuits perpendicularly to a direction in which the fuse circuits are layered. The connection plate has a U-shaped extended portion.

## Claims

### Claim 1

A fusible link (1) comprising:
a connection plate (2),
a fusible portion (3) continuous with one side of the connection plate (2),
a terminal (4) continuous with the fusible portion (3),
at least one ruse element (5) having the fusible portion (3) and the terminal (4),
a fuse circuit (6) having the connection plate (2) continuous with the fuse element (5), and
a housing (7) accommodating the fuse circuit (6),
wherein a plurality of the fuse circuits (6), including upper fuse circuits (61) and lower fuse circuits (62), are layered with a space therebetween in the housing (7), the fusible portion (3) of one of the layered fuse circuits (6) being offset from the fusible portion (3) of an other of the plurality of the fuse circuits (6) which is disposed adjacent the one of the layered fuse circuits (6), said offset being perpendicular to a direction in which the fuse circuits (6) are layered and along a direction directed outwardly from the one side of the connection plate from which the fusible portion (3) is continuous, the fusible portion (3) including upper fusible portions (31) of the upper fuse circuit (61) and lower fusible portions (32) of the lower fuse circuit (62), and
wherein both the fusible portions (31) of upper fuse circuits (61) and the fusible portions (32) of lower fuse circuits (62) received in the housing (7) are covered with a transparent cover (8) so as to permit detection of the upper fusible portions (31) and the lower fusible portions (32) from the outside of the housing (7), respectively, and wherein the upper fuse circuit (61) has the connection plate (21) formed with a U-shaped portion (21b) positioned horizontally and the lower fuse circuit (6) has the connection plate (22) formed with a U-shaped portion (22b) bent from the lower fuse circuit (62) to rise vertically.

### Claim 2 (depends on 1)

The fusible link according to claim 1 wherein the connection plate (2) of one of the layered fuse circuits (6) is offset from the connection plate (2) of an adjacent one of the layered fuse circuits (6) perpendicularly to a direction in which the fuse circuits (6) are layered.

### Claim 3

A fusible link (1) comprising;
a connection plate (2),
a fusible portion (3) continuous with one side of the connection piece (2),
a terminal (4) continuous with the fusible portion (3),
at least one fuse element (5) having the fusible portion (3) and the terminal (4),
a fuse circuit (6) having the connection plate (2) continuous with the fuse element (5), and
a housing (7) accommodating the fuse circuit (6),
wherein a plurality of the fuse circuits (6) are layered with a space therebetween in the housing (7), the fuseible portion (3) of one of the layered fuse circuits (6) being offset from the fusible portion (3) of another of the plurality of the fuse circuits (6) which is disposed adjacent the one of the layered fuse circuits (6), said offset being perpendicular to a direction in which the fuse circuits (6) are layered and along a direction directed outwardly from the one side of the connection plate from which the fusible portion (3) is continuous, and
wherein the connection plate (2) is elongated and has a U-shaped cross-section perpendicular to a longitudinal direction of the connection plate (2).