Battery pack
AssigneeSanyo Electric Co., Ltd.
InventorTakashi Namura
Life of this patent
Estimating the term…
Abstract
The battery pack holds a first block adjacent to a second block in a case. The first and second blocks are a plurality of circular cylindrical batteries arranged in the same horizontal plane. The first and second blocks are each made up of N batteries lined up side-by-side in parallel fashion to form a lateral battery array, and M perpendicular batteries in close proximity to an electrode end of the lateral battery array and oriented at right angles to the batteries of the lateral battery array. The circular cylindrical batteries of the first and second blocks are arranged with point-by-point symmetry about the center of the rectangular case. Further, the electrode ends of perpendicular batteries protrude beyond a side of the lateral battery array towards the neighboring block to provide center region space between the first and second blocks.
Claims18
A battery pack comprising:
- (a) a case;
- (b) a first block which is held in the case, and has a plurality of circular cylindrical batteries arranged in the same horizontal plane;
- (c) a second block which has the same shape as the first block with a plurality of circular cylindrical batteries arranged in the same horizontal plane, and which is held in the case adjacent to, and lined up in the same horizontal plane as the first block;
- (d) both the first block and the second block are provided with N+M circular cylindrical batteries;
- (e) the N+M circular cylindrical batteries are made up of a lateral battery array of N batteries lined up side-by-side in parallel fashion, and M perpendicular batteries disposed in close proximity to an electrode end of the lateral battery array and oriented at right angles to the batteries of the lateral battery array;
- and
- (f) the first block and second block circular cylindrical batteries are arranged with point-by-point symmetry about the center of the rectangular case, the electrode ends of perpendicular batteries protrude beyond a side of the lateral battery array towards the neighboring block, and circular cylindrical batteries are held in the case with center region space provided between the first block and second block.
Dependencies are inferred from the claim text.