Vehicle power supply device

A vehicle power supply device, comprising:

• a fixed base;
• a scissor-fork lifting mechanism, wherein the scissor-fork lifting mechanism is configured to be driven by a drive device to ascend or descend;
• and the scissor-fork lifting mechanism comprises at least one scissor-fork swing rod set, the scissor-fork swing rod set comprises at least one pair of swing rods, each pair of swing rods comprises two swing rods that are cross-arranged and are hinged with each other, and two swing rods in a pair of swing rods that is closest to the fixed base are separately mounted on the fixed base;
• and
• a power supply head, wherein the power supply head is mounted on two swing rods in a pair of swing rods that is farthest from the fixed base, and the power supply head is driven by the scissor-fork lifting mechanism to ascend or descend,
• wherein the drive device comprises a drive unit and a transmission unit configured to convert rotational movement into linear movement, the drive unit and the transmission unit are stacked along a lifting direction of the scissor-fork lifting mechanism, and the drive unit is connected with the scissor-fork lifting mechanism by the transmission unit to drive the scissor-fork lifting mechanism to ascend or descend;
• and
• the drive device is mounted on the fixed base, and the transmission unit is arranged between the fixed base and the drive unit.