Locking electrical connector, locking method and device

A locking method for locking an electrical connector, for locking electrical connection between a locking electrical connector and an outlet connector, wherein the outlet connector comprises a first housing, the method comprising providing a second housing and an actuating assembly, at least one electrical connection point being electrically connectable to the outlet connector is received in the second housing;

• the method further comprising:
• providing a locking member, wherein the locking member is rotatably fixed to the second housing and is driven by the actuating assembly, so as to rotate relative to the second housing, such that the locking member is frictionally locked with the side surface of the first housing, to realize lock of the electrical connection between the locking electrical connector and the outlet connector;
• wherein at least a portion of an inner side wall of the second housing gradually protrudes towards a center of an inner cavity of the second housing to form a first slope;
• during a locking process, at least a portion of the locking member and/or the actuating assembly is capable of acting with the first slope to make a rotation of the locking member more smoothly;
• operating the actuating assembly to rotate the locking member until the locking electrical connector is engageable with the outlet connector and to achieve an electrical connection;
• operating the actuating assembly to rotate the locking member until the locking member is frictionally locked with the side surface of the first housing.