Patent attributes
The present invention provides a cooling system for a battery pack, comprising: a housing, an air passage, a fan and at least two air holes; the housing comprises an upper cover and a box, the upper cover is connected with the box; the air passage is arranged on the box and comprises an airflow cavity, an air channel and an air hole; the airflow cavity is arranged at a bottom of the box; the air channel is arranged on a side wall of the box, and the bottom of the air channel is communicated with the airflow cavity; all the air holes are arranged on the housing and communicated with the air passage, wherein at least one air hole is arranged on the upper cover and corresponds to a top end of the air channel; and the fan is arranged inside the air passage.