Battery pack structure for electric vehicles

摘要

An object of the present invention is to secure both of vehicle body floor upper space and battery mounting space, in setting of a mounting position of a high-power cut-off switch to a battery pack case. Battery pack case 1 having battery modules 2 and SD switch 4 that cuts off battery high-power circuit by manual operation is arranged in a lower position of vehicle body floor 100. In this battery pack structure for electric vehicle, an inside space of the battery pack case 1 is divided into two areas in a vehicle front-and-rear direction, and one of the two areas is defined as a battery module mounting area 7. SD switch 4 is provided in an upper surface position of the case that covers an electrical component mounting area 8, which is the other area, located on a vehicle front side with respect to battery module mounting area 7.

主权项

1. A battery pack structure for an electric vehicle that mounts, at an underside of a vehicle body floor, a battery pack case having a battery module and a high-power cut-off switch that cuts off a battery high-power circuit by a manual operation, the battery pack structure comprising:
two vehicle areas formed by dividing an inside space of the battery pack case into two areas such that one area is in front of another area in a vehicle front-and-rear direction, the two areas comprising a first area and a second area, wherein the first area comprises a battery module mounting area where the battery module is mounted, wherein the second area is between the first area and at least one connector terminal, wherein the high-power cut-off switch is provided on an upper portion of the battery pack case and in the second area which is located on a vehicle front side or a vehicle rear side with respect to the battery module mounting area, wherein a distance between the underside of the vehicle body floor and a portion of the upper portion of the battery pack case where the high-power cut-off switch is provided is greater than a distance between a portion of an upper surface of the battery pack case and the underside of the vehicle body floor in the first area, and wherein a portion of the high-power cut-off switch is embedded in the battery pack case at a recess including a concave portion sloping downward along the upper portion of the battery pack case.