BATTERY PACK

摘要

In a battery pack, unit cells, an internal cooling fan and a drive motor are arranged in an inside space of a housing. The drive motor drives the internal cooling fan to supply cooling air. The cooling air circulates in the inside space of the housing to cool the unit cells. Radiation fins are formed on at least one specific exterior surface of the housing. The specific exterior surface has a superior radiation capability which is higher than that of each of the other exterior surfaces of the housing. The cooling air is supplied in turn surfaces of the unit cells and interior surface of the housing corresponding to the exterior surface on which the radiation fins are formed.

主权项

1. A battery pack comprising:
a plurality of unit cells; a housing having surfaces in which the unit cells are stored in an inside space of the housing; a drive motor arranged in the inside space of the housing; an internal cooling fan arranged in the inside space of the housing and configured to supply a cooling air to the inside space of the housing when driven by the drive motor; and a radiation section is formed on at least one specific exterior surface selected from the exterior surfaces of the housing, the specific exterior surface having a radiation capability which is higher than a radiation capability of each of the other exterior radiation surfaces of the housing, wherein the internal cooling fan is arranged in the inside space of the housing so that the cooling air passes along surfaces of the unit cells and interior surfaces of the housing which corresponds to the exterior surfaces including the specific exterior surface of the housing.