Electronic device

An electronic device, adapted to be connected to a mating electronic device having a male terminal structure, the male terminal structure having a first terminal member and a free terminal member, wherein the electronic device comprises:

• a device body;
• and
• a female terminal structure connected to the device body, the female terminal structure
• a female terminal body respectively connected to the device body and the mating electronic device;
• an extension portion protruding from a middle portion of the female terminal body;
• a tunnel recessed from a middle portion of the extension portion;
• a second terminal member disposed at an end portion of the female terminal body and received in the tunnel, wherein the second terminal member has a terminal inserting portion capable of receiving the first terminal member;
• and
• a secured terminal member disposed at the end portion of the female terminal body, spaced from the second terminal member, and disposed on an outer periphery of the extension portion, wherein the secured terminal member is capable of being in contact with the free terminal member;
• wherein an end portion of the extension portion is substantially flushed with an end portion of the secured terminal member;
• the second terminal member is separated from the secured terminal member by the extension portion;
• an end portion of the second terminal member is not flushed with the end portion of the extension portion;
• the second terminal member is enclosed by the extension portion;
• one end of the tunnel is closed;
• wherein the female terminal structure further comprises a waterproof elastomer disposed in the tunnel of the extension portion, so that the second terminal member is normally shielded by the waterproof elastomer, wherein the waterproof elastomer has a channel, wherein the terminal inserting portion is capable of receiving the first terminal member through the channel of the waterproof elastomer, and an inner wall of the channel of the waterproof elastomer is capable of enclosing an outer wall of the first terminal member.