BUSBAR MODULE AND POWER SUPPLY UNIT INCLUDING SAME BUSBAR MODULE

• US 20120164509A1
• Filed: 09/07/2010
• Published: 06/28/2012
• Est. Priority Date: 09/07/2009
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Ogasawara, Shigeyuki, Aoki, Keizo, Yanagihara, Shinichi
• Granted Patent: US 8,999,552 B2
• Time in Patent Office: Days
• US Class Current: 429/121
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/507 comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• CPC Class Codes: H01M 50/51 Connection only in series
• CPC Class Codes: H01M 50/517 by fixing means, e.g. screws, rivets or bolts
• CPC Class Codes: H01M 50/522 Inorganic material
• 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 11/281 for connections to batteries
• CPC Class Codes: H01R 9/226 comprising a plurality of conductive flat strips providing connection between wires or components H01R9/2425 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A busbar module for connecting a plurality of batteries of a battery unit in which the batteries are arranged so that electrodes of each of the batteries having different polarities are disposed adjacent to each other is provided. The busbar module includes busbars, terminals, wires and plates. The busbars connect the electrodes adjacent to each other. The terminals are connected to the busbars respectively to detect a voltage of the batteries. The wires are connected to the terminals respectively. The plates accommodate the busbar, the terminals and the wires, and provided above the battery unit. A connector connects the plates together.

Claims

1. A busbar module for connecting a plurality of batteries of a battery unit in which the batteries are arranged so that electrodes of each of the batteries having different polarities are disposed adjacent to each other, the busbar module comprising:

a plurality of busbars that connect the electrodes adjacent to each other;

a plurality of terminals connected to the busbars respectively to detect a voltage of the batteries;

a plurality of wires connected to the terminals respectively;

a plurality of plates accommodating the busbar, the terminals and the wires, and provided above the battery unit; and

a connector, configured to mechanically connect the plates together.

2. The busbar module as set forth in claim 1, wherein the connector includes:

a first connecting piece provided at one end portion of the plate and formed with a projection; and

a second connecting piece provided at another end portion of the plate and formed with a hole, wherein the first connecting piece of one of the plates is configured to be inserted into the second connecting piece of another one of the plates adjacent to the one of the plates.

3. The busbar module as set forth in claim 1, wherein

a plurality of connector like the connector are provided.

4. The busbar module as set forth in claim 2, wherein

a wall portion is provided on a part of the first connecting piece where is an edge portion in a width direction orthogonal to an arrangement direction of the batteries, and

an engaging projection for engaging the second connecting piece is projected from the wall portion.

5. The busbar module as set forth in claim 2, wherein the connector includes:

a fixing member, in a state that the wire is laid on the second connecting piece, inserted into the hole and wound around circumferences of the second connecting piece and the wire so as to fix the wire to the second connecting piece.

6. The busbar module as set forth in claim 5, wherein

the fixing member is a binding band.

7. A power supply unit, comprising:

a plurality of batteries of a battery unit in which the batteries are arranged so that electrodes of each of the batteries having different polarities are disposed adjacent to each other; and

the busbar module set forth in claim 1.