Charging terminal and charging base

A charging terminal, comprising a connecting base and an insertion portion, wherein the charging terminal is arranged inside a charging base, the connecting base is configured to connect to a cable of the charging base, the insertion portion comprises a plurality of elastic pieces arranged at intervals along a circumferential direction of the charging terminal, and an insertion hole configured to allow insertion of a pin terminal of a charging gun is formed on inner sides of the plurality of elastic pieces;

• each of the elastic pieces comprises a main elastic piece and an elastic transition piece, the elastic transition piece is connected between the main elastic piece and the connecting base, and a concave surface recessed toward an axis of the insertion hole is arranged on an outer peripheral surface of the elastic transition piece;
• and
• when the pin terminal of the charging gun is inserted into the insertion hole, the plurality of elastic pieces expands outward, and the elastic transition piece is configured to retract the main elastic piece, to cause a plurality of main elastic pieces to tend to converge toward a central shaft of the insertion hole, to cause the plurality of main elastic pieces to be tightly attached to an outer peripheral surface of the pin terminal of the charging gun.