FUSE UNIT

• US 20120176216A1
• Filed: 10/01/2010
• Published: 07/12/2012
• Est. Priority Date: 10/02/2009
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Aoki, Tatsuya, Kibushi, Hidenori
• Granted Patent: US 9,190,236 B2
• Time in Patent Office: Days
• US Class Current: 337/415
• 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 85/20 Bases for supporting the fuse; Separate parts thereof
• CPC Class Codes: H01H 85/2045 Mounting means or insulating parts of the base, e.g. covers, casings
• CPC Class Codes: H01R 13/6273 comprising two latching arms

Abstract

A fuse unit including a fuse element therein includes a first resin body and a second resin body. The second resin body is connected to the first resin body by a hinge portion and configured to be bended around the hinge portion with respect to the first resin body. A pair of first side walls and a pair of second side walls are provided on the first resin body and the second resin body respectively and extend in a direction intersecting an axis of the bending of the second resin body. A pair of engaging parts are provided at the lock arms provided at the first side walls respectively respectively, and each of which has a first inclined face. A pair of engaged parts are provided at the second side walls respectively, and corresponds to the engaging parts respectively, and each of which has a second inclined face configured to contact the first inclined face in surface contact in a state that the second resin body is bended. The first inclined face and the second inclined face are formed along a direction intersecting a direction of a reaction force by springback of the fuse element caused by the bending of the second resin body.

Claims

1. A fuse unit including a fuse element therein, the fuse unit comprising:

a first resin body;

a second resin body connected to the first resin body by a hinge portion and configured to be bended around the hinge portion with respect to the first resin body;

a first opposing wall provided on the first resin body;

a second opposing wall provided on the second resin body and opposing the first opposing wall, so that the hinge portion is disposed between the first opposing wall and the second opposing wall;

a pair of first side walls provided on the first resin body and extending in a direction intersecting an axis of the bending of the second resin body;

a pair of second side walls provided on the second resin body and extending in a direction intersecting the axis of the bending of the second resin body;

a pair of lock arms provided at the first side walls respectively;

a pair of engaging parts, provided at the lock arms respectively, and each of which having a first inclined face; and

a pair of engaged parts, provided at the second side walls respectively, and corresponding to the engaging parts respectively, and each of which having a second inclined face configured to contact the first inclined face in surface contact in a state that the second resin body is bended,

wherein the first inclined face and the second inclined face are formed along a direction intersecting a direction of a reaction force by springback of the fuse element caused by the bending of the second resin body.

2. The fuse unit as set forth in claim 1, wherein:

each of the engaging parts is a lock projection;

each of the engaged parts is a protrusion; and

the lock projection and the protrusion are configured to contact to each other and to slide according to the bending of the second resin body.

3. The fuse unit as set forth in claim 1, wherein:

the lock arms have flexibility; and

the lock arms are configured to be deformed outward of the first side walls according to the bending of the second resin body.

4. The fuse unit as set forth in claim 1, wherein:

a straight line parallel to the first inclined face and extended from the first inclined face in a state the first inclined face and the second inclined face contact in surface contact intersects the axis of the bending of the second resin body.