Locking device for an electrical or electronic connector

A locking device for an electrical or electronic connector comprising first and second connection members that are complementary and can be inserted into each other, the locking device comprising:

• a frame intended to receive the first connection member,
• a locking member intended to cooperate with the second connection member in order to prevent a disconnection between the first and second connection members,
• wherein the locking member is mounted on the frame in such a way as to be movable between a locking position, in which it cooperates with the second connection member to prevent a disconnection between the first and second connection members, and an unlocking position in which it enables a disconnection between the first and second connection members,
• wherein the locking member comprises manoeuvring means intended to be placed in contact with a finger of a user in order to move the locking member between the locking and unlocking positions, and
• wherein an indentation is formed in the frame and has an opening the first connection member being arranged in the frame, facing the opening.