Fixing structure of conductor unit

• US 10,158,204 B2
• Filed: 10/25/2017
• Issued: 12/18/2018
• Est. Priority Date: 12/09/2016
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Okazaki, Yutaro
• Primary Examiner(s): Nguyen, Chau N
• Application Number:
  US15/793,946
• Publication Number:
  US 20180166840A1
• Time in Patent Office: 419 Days
• Field of Search: 174 84 C, 439 762, 439754, 439762, 320105
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/0084 relating to control modules
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: H01H 2085/025 Structural association with a binding post of a storage battery
• CPC Class Codes: H01H 85/20 Bases for supporting the fuse; Separate parts thereof
• CPC Class Codes: H01H 85/205 Electric connections to contacts on the base
• CPC Class Codes: H01H 85/50 the fuse having contacts at opposite ends for co-operation with the base
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/204 Racks, modules or packs for multiple batteries or multiple cells
• CPC Class Codes: H01M 50/296 characterised by terminals of battery packs terminals of batteries H01M50/543
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: H01M 50/569 Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals battery terminal connectors with integrated measuring arrangements G01R31/364
• CPC Class Codes: H01R 11/28 End pieces consisting of a ferrule or sleeve
• CPC Class Codes: H01R 11/281 for connections to batteries
• CPC Class Codes: H01R 13/405 Securing in non-demountable manner, e.g. moulding, riveting
• CPC Class Codes: H01R 13/68 with built-in fuse
• CPC Class Codes: H01R 25/162 : Electrical connections between or with rails or bus-bars rails having primarily a non electrical function H01R4/64
• CPC Class Codes: H01R 4/185 : combined with a U-shaped insulation-receiving portion
• CPC Class Codes: H02H 3/08 : responsive to excess current responsive to abnormal temperature caused by excess current H02H5/04
• CPC Class Codes: H02H 7/18 : for batteries; for accumulators
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/00 : Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00304 : Overcurrent protection
• CPC Class Codes: H02J 7/0031 : using battery or load disconnect circuits H02J9/002 takes precedence
• CPC Class Codes: H02J 7/0042 : characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries

Abstract

A conductor unit includes a connection conductor directly or indirectly connected with at least one electrode terminal in an electrode terminal group of a plurality of battery cells arranged in the same direction, a linear conductor connected with a battery monitoring unit that monitors the battery conditions of the battery cells, a fusible body that is connected between the connection conductor and the linear conductor and fuses when an overcurrent flows between the connection conductor and the linear conductor, and an insulative resin-molded member that contains the fusible body therein. The connection conductor includes holding portions that are disposed inside the resin-molded member, and hold the resin-molded member. The holding portions are formed in at least two places spaced apart from each other.

Claims

1. A fixing structure of a conductor unit comprising:

a connection conductor that is connected directly or indirectly with at least one electrode terminal in an electrode terminal group of a plurality of battery cells arranged in a same direction;

a linear conductor connected with a battery monitoring unit configured to monitor the battery conditions of the battery cells;

a fusible body that is connected between the connection conductor and the linear conductor, the fusible body being configured to fuse when an overcurrent flows between the connection conductor and the linear conductor; and

an insulative resin-molded member that contains the fusible body inside the insulative resin-molded member, wherein

the connection conductor includes holding portions that are disposed inside the resin-molded member and hold the resin-molded member,

the holding portions are formed in at least two places spaced apart from each other,

the holding portion is formed in a plate-like shape, and provided with at least one through hole, and

a part of the resin-molded member is disposed inside the through hole.

2. The fixing structure of the conductor unit according to claim 1, wherein

each of the holding portions projects in a direction orthogonal to the arrangement direction of the battery cells, and at least one of the holding portions serves as a connection portion configured to electrically connect the fusible body and the connection conductor with each other.

3. The fixing structure of the conductor unit according to claim 1, wherein

the resin-molded member is formed in such a manner that an outside bottom surface of the resin-molded member facing the battery cells is located coplanar with a side face of the battery cells or located on a side opposite to the battery cells with respect to the side face of the battery cells, in a state where the connection conductor is connected with the electrode terminal.

4. The fixing structure of the conductor unit according to claim 2, wherein

the resin-molded member is formed in such a manner that an outside bottom surface of the resin-molded member facing the battery cells is located coplanar with a side face of the battery cells or located on a side opposite to the battery cells with respect to the side face of the battery cells, in a state where the connection conductor is connected with the electrode terminal.