# US 8,999,552 B2 · Busbar module and power supply unit including same busbar module

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- Number: US 8,999,552 B2
- Document ID: US8999552B2
- Status: Granted
- Kind: B2
- Application number: 13/394,436
- Filed: 2010-09-07
- Published: 2012-06-28
- Granted: 2015-04-07
- Earliest claimed: 2009-09-07
- Assignees: Yazaki Corporation
- Applicants: Shigeyuki Ogasawara; Keizo Aoki; Shinichi Yanagihara
- Inventors: Shigeyuki Ogasawara; Keizo Aoki; Shinichi Yanagihara
- Web page: https://patentgrep.com/patent/US8999552B2

## CPC

- H01R 11/281: {for connections to batteries}
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
- H01M 50/51: Connection only in series
- H01M 50/517: by fixing means, e.g. screws, rivets or bolts
- H01M 50/522: Inorganic material
- 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)
- H01R 9/226: {comprising a plurality of conductive flat strips providing connection between wires or components (H01R9/2425 takes precedence)}
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## 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

### Claim 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 busbars, the terminals and the wires, and provided above the battery unit; and
a connector, configured to mechanically connect the plurality of plates together,
wherein each of the plurality of plates is independent with respect to each other, and
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.

### Claim 2 (depends on 1)

The busbar module as set forth in claim 1, wherein
a plurality of connectors, like the connector, are provided.

### Claim 3 (depends on 1)

The busbar module as set forth in claim 1, 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.

### Claim 4 (depends on 1)

The busbar module as set forth in claim 1, 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.

### Claim 5 (depends on 4)

The busbar module as set forth in claim 4, wherein
the fixing member is a binding band.

### Claim 6 (depends on 1)

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.

### Claim 7 (depends on 1)

The busbar module of claim 1, wherein each of the plurality of plates are separate from each other.