Patent ID: 11942775
Assignee: SUNGROW POWER SUPPLY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 8:
9. A switch box of a high voltage battery cluster, comprising: a positive branch, a negative branch and an overcurrent protection circuit, wherein
the overcurrent protection circuit comprises:
a first fusing module arranged in the positive branch of the switch box of the high voltage battery cluster; and
a second fusing module arranged in the negative branch of the switch box of the high voltage battery cluster, wherein
a withstand current-time curve of the first fusing module is different from a withstand current-time curve of the second fusing module,
the positive branch is arranged with a first direct current switch, and the negative branch is arranged with a second direct current switch,
an input terminal of the positive branch serves as a positive input terminal of the switch box, and an output terminal of the positive branch serves as a positive output terminal of the switch box, and
an input terminal of the negative branch serves as a negative input terminal of the switch box, and an output terminal of the negative branch serves as a negative output terminal of the switch box,
wherein under a same withstanding current, fusing duration of the first fusing module is less than fusing duration of the first direct current switch, and fusing duration of the second fusing module is less than fusing duration of the second direct current switch in the switch box of the high voltage battery cluster.