Battery module protection structure

Abstract

A battery module protection structure is provided that prevents the occurrence of a short circuit when an external force is applied. A battery module protection structure (1) comprises: a plurality of battery modules (3) including a battery stack (3b) in which a plurality of battery cells (3a) are stacked; a first conductive connection member (4) having an inclined portion (4c) inclined in a first direction intersecting a horizontal direction for electrically connecting between the battery modules (3); and a second conductive connection member (5) that is farther away from the battery modules (3) than the first conductive connection member (4), at least partially overlapping the inclined portion (4c) when projected in the horizontal direction, and that is electrically connected to a positive all-terminal or a negative all-terminal of the battery module (3).

Claims

[1] Battery module protection structure (1), with: a plurality of battery modules (3) comprising a battery stack (3b) in which a plurality of battery cells (3a) are stacked; a first conductive connecting element (4) having an inclined portion (4c) inclined in a first direction intersecting a horizontal direction for electrical connection between the battery modules (3); and a second conductive connecting element (5) which is spaced further from the battery modules (3) than the first conductive connecting element (4), at least partially overlaps with the inclined section (4c) when projected in the horizontal direction, and is electrically connected to a positive overall terminal or a negative overall terminal of the battery module (3). [2] The battery module protection structure (1) according to claim 1, wherein the second conductive connecting member (5) overlaps the inclined portion (4c) when projecting in the horizontal direction, and a surface (5c) inclined in the first direction is formed on the second conductive connecting member (5). [3] Battery module protection structure (1) according to claim 1, further comprising: a voltage detection line (6) for detecting a voltage of the battery modules (3); and a stacking holder (7) for fastening the battery modules (3) to a battery housing (2). [4] The battery module protection structure (1) according to claim 3, wherein the stack holder (7) has an overhanging portion (7a) projecting from one side of the battery modules to one side of the second conductive connecting member (5). [5] Battery module protection structure (1) according to claim 3, further comprising: a reinforcement (8) attached to the stack holder (7) with a screw for fastening the stack holder (7) to the battery housing (2), wherein the stack holder (7) has a convex part (7b) which projects upwards above a height of the screw.

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