Mechanical lock and charging connector with improved locking features

A charging connector, comprising:

• a housing, a hook and a mechanical lock;
• wherein the hook comprises an engaging portion and an operating portion;
• the engaging portion is engaged or disengaged with a mating connector when the operating portion is moved by an external force;
• the mechanical lock is configured to lock or unlock the operating portion, so that the operating portion is in a movable state or an immovable state;
• the mechanical lock comprises:
• a push rod, a swing lever and a first elastic member;
• the first elastic member is configured to be able to provide the push rod with a force opposite to a direction of the external force which is applied to the push rod;
• the push rod is slidably arranged on the housing along a first direction;
• the push rod has a heart-shaped cam and a heart-shaped groove;
• the heart-shaped groove surrounds a peripheral of the heart-shaped cam;
• one end of the swing lever is fixed to the housing, and another end of the swing lever is located in the heart-shaped groove;
• the heart-shaped groove has an unlocking position and a locking position;
• when the another end of the swing lever is located at the locking position, the operating portion is locked by the push rod, and the operating portion cannot move;
• and
• when the another end of the swing lever is located at the unlocking position, the push rod unlocks the operating portion, and the operating portion is movable.