Disclosed are an “8”-shaped elastic contact element and an electrical connector using the contact element. The “8”-shaped elastic contact element comprises two contact parts in conductive contact with two corresponding connectors respectively and a connecting part (12) located between the two contact parts, the elastic contact element is formed by ending a strip-shaped conductive material, a fracture is formed between the two ends of the conductive material, the contact parts and the connecting part are arranged in an “8” shape, and each contact part has at least one arc-shaped contact structure which is bulged towards the periphery. Each bent part of the “8” shape of the elastic contact element forms a bending deformation structure to disperse the deformation process, thereby prolonging the servide life of the elastic contact element, and the elastic contact element, which is only formed by simple arcs, does not have a special requirement for materials.

A spring-loaded connector (2) includes a waterproof elastic member (50). The waterproof elastic member (50) includes cylindrical parts (51) corresponding to respective contact units (10). When the cylindrical part (51) is sandwiched between a first pin (11) and an intermediate member (13) of the corresponding contact unit (10), the waterproof elastic member (50) seals between the first pin (11) and the intermediate member (13) in a watertight manner while allowing the contact unit (10) to penetrate. The waterproof elastic member (50) includes, between the cylindrical parts (51) that are adjacent to each other, a water-shielding structure (52) for preventing the first pins (11) of the contact units (10) corresponding to the adjacent cylindrical parts from being electrically connected due to presence of water between the first pins (11).

A probe element includes a conduction pin, a cylindrical barrel, and a bushing. The barrel accommodates the conduction pin inside thereof such that the tip portion of the conduction pin is exposed to the outside. The bushing holds the conduction pin inside the barrel in a state in which the tip portion is movable, and has predetermined permittivity. The conduction pin includes a tip portion, an intermediate portion partially accommodating the tip portion, and a cylindrical socket portion coupled to the intermediate portion. A distance between the socket portion and the inner wall surface of the barrel, and a distance between the intermediate portion and the inner wall surface of the barrel in a direction orthogonal to an extending direction of the barrel are different from each other.

A first optical connector, a second optical connector, a first lock member, and a second lock member are equipped. The first optical connector is attached to an electronic device, and corresponds to a receptacle. The second optical connector is attached to an end an optical cable, is fittable to the first optical connector, and corresponds to a plug. The first lock member is attached to the electronic device at a position corresponding to the first optical connector not to prevent fitting of the second optical connector to the first optical connector. The second lock member is attached to the optical cable at a position corresponding to the second optical connector not to prevent fitting of the second optical connector to the first optical connector. The second lock member is fittable to the first lock member in a state of fitting between the first optical connector and the first optical connector.

A connector assembly for a mobile device is provided that includes a back plate adapted to be operably coupled with a mobile device, a connector region operably couple with the back plate, and at least one alignment member operably coupled with the back plate and positioned adjacent to the connector region. The connector region is configurable in at least a first arrangement and a second arrangement. The at least one alignment member aligns with the connector region and frictionally receive an accessory device. In the first arrangement, the connector region includes at least one electrical connector, and in the second arrangement, the connector region includes no electrical connectors.

A contact pin, a spring contact including the same, and a socket device are proposed, in which the contact pin has a minimum length suitable for testing a semiconductor IC for a high speed signal and allows the spring contact to secure a maximum compression distance. The contact pin (100) includes: a plate-shaped body part (110) having a width and a thickness; a head part (120) configured to be integrated with an upper end of the body part (110); and a leg part (130) formed by extending from a lower end of the body part (110) to be integrated therewith, wherein the head part (120) is a plate-shaped strip (122) provided on the upper end of the body part (110).

An electrode connection structure includes a first electrode unit that includes first electrodes formed concentrically, and a second electrode unit that includes a second electrode formed into a needle shape axially movable forward and rearward and is electrically connectable to the first electrode unit, and in the electrode connection structure, the second electrode unit includes a plurality of the second electrodes that is arranged in a circumferential direction and arranged at different radial positions, and the plurality of the second electrodes is electrically connected to the first electrodes arranged at different radial positions, respectively.

An electronic device comprising a metal case having a metal pad attached thereto is disclosed. According to the present invention, the electronic device comprises: a metal case having a metal terminal part formed therein; a metal pad joined to the metal terminal part by laser welding; and a conductive first coating layer coated on one surface of the metal pad, wherein the light reflectivity of the first coating layer is lower than the light reflectivity of the metal pad.

The present invention relates to a plug and a socket, which are each designed to be capable of being connected to a coded thermal line protected against polarity reversal. To this end the plug and the socket each comprise a recess which is configured to receive, in a manner protection against polarity reversal, a thermal line with an asymmetrically designed cross section and a first and a second electrically conductive plug or socket element which each comprise a first and a second area. The first area of the plug and socket elements each comprise a spring contact, and the plug and socket elements are arranged in such a manner that the two spring contacts each contact substantially axially a core of a received thermal line.

A connector comprising a substantially cylindrical base and a plug connectable to the base in a detachable manner, in which connector a plurality of contacts are mounted in a contact block, wherein the contact block includes a flexible membrane through which the contacts extend, the compression of the membrane allowing the sealing at the interface between the membrane and the contacts to be ensured.