Patent attributes
An electrical connection device (1). The electrical connection device comprises a vehicle side electrical connector (3) comprising a first mounting seat (31), a first high-voltage assembly (32) and a first low-voltage assembly (33); and a battery side electrical connector (5) comprising a second mounting seat (50), a second high-voltage assembly (51) and a second low-voltage assembly (52). The first high-voltage assembly and the second high-voltage assembly are in a separable floating electrical connection. By means of the electrical connection device, the first high-voltage assembly and the second high-voltage assembly can be prevented from hard damage, the stability of the electrical contact between the first high-voltage assembly and the second high-voltage assembly can be ensured, thereby ensuring the reliability of the electrical connections of the two parties, and improving the waterproof performance of the vehicle side electrical connector and the battery side electrical connector.