Cell module
AssigneeHitachi Automotive Systems, Ltd.
InventorYasuyuki Aizawa
Life of this patent
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Abstract
Provided is a battery module having a structure with which dimensional errors of assembly components can be absorbed for reliable locking and assembling. A battery module 1 according to the present invention is configured so that a plurality of battery cells 2 are arranged, and a bus bar 16 conductively connects adjacent external terminals 13A and 13B, and the battery module 1 includes a cell holder 21 interposed between the plurality of battery cells 2 to hold the battery cells 2, and a bus bar holder 6 mounted to the cell holder 21 to hold the bus bar 16. Then, a bus bar holder locking portion 26 provided at the cell holder 21 and having a hook shape, and a cell holder locking portion 32 provided at the bus bar holder 6 and having a hook shape are locked to each other.
Claims9
A battery module including a plurality of battery cells, the battery cells each having a rectangular battery container and external terminals provided on one surface of the respective battery container, and a bus bar for conductively connecting adjacent ones of the external terminals, the battery module comprising:
- a cell holder interposed between the battery cells configured to hold the plurality of battery cells;
- a bus bar holder mounted to the cell holder configured to hold the bus bar;
- a gas exhaust duct arranged opposite to a gas exhaust valve provided on one surface of one of the battery cells,
- wherein the cell holder is provided with a first claw-shaped locking portion, the bus bar holder is provided with a second claw-shaped locking portion, and the first and second claw-shaped locking portions are locked to each other,
- the cell holder is further provided with a third claw-shaped locking portion integrally formed with the first claw-shaped locking portion, and
- the gas exhaust duct is provided with a fourth claw-shaped locking portion locked to the third claw-shaped locking portion.
A battery module including a plurality of battery cells, the battery cells each having a rectangular battery container and external terminals provided on one surface of the respective battery container, and a bus bar for conductively connecting adjacent ones of the external terminals, the battery module comprising:
- a cell holder interposed between the battery cells configured to hold the plurality of battery cells;
- and
- a bus bar holder mounted to the cell holder configured to hold the bus bar,
- wherein the cell holder is provided with a first claw-shaped locking portion, the bus bar holder is provided with a second claw-shaped locking portion, and the first and second claw-shaped locking portions are locked to each other, and
- the bus bar holder is formed of a material larger in elastic modulus than that of the cell holder.
Dependencies are inferred from the claim text.