An electrical connector includes an insulating body having a bottom plate with receiving slots and multiple terminals received in the receiving slots. Each receiving slot has two opposite first side walls, and a second and third side walls connecting the first side walls. A protruding block protrudes from the second side wall toward the third side wall. Each terminal has a plate portion, an elastic arm and a material connecting portion extending upward from the plate portion, a contact portion at a top end of the elastic arm to urge a chip module, and two clamping portions bending and extending from two opposite sides of the plate portion horizontally. The plate portion and the material connecting portion are limited between the protruding block and the third side wall. Tin balls are fixed between the clamping portions, and soldered to a circuit board. The tin balls are below the protruding block.

A cable connection board includes a signal layer disposed inside a board, a first layer and a second layer disposed inside the board with the signal layer being interposed therebetween, a cable coupled to the board so as to extend to a first surface of the board, a first solder joint portion that joins an outer conductor included in the cable and the first layer to each other, and a second solder joint portion that joins a front end of an inner conductor included in the cable and the signal layer to each other in the board.

Provided is an electrical connection cassette with which it is possible to freely expand a device and add functions in accordance with the size of free space. An electrical connection cassette is provided with: a circuit board; and first connection terminals and second connection terminals mounted on the circuit board and having terminal shapes that can be engaged with each other. In a state with a terminal connection direction oriented in a predetermined direction with respect to the circuit board, the first connection terminals are disposed on the side of one main surface of the circuit board, and in a state with a terminal connection direction oriented in a direction parallel to the predetermined direction, the second connection terminals are disposed near the other main surface of the circuit board.

A mounting frame system is disclosed that facilitates the mounting of optical connector modules to printed circuit boards. The mounting frame system can include a mounting frame that is configured to attach to a printed circuit board, and is adapted to attach to a connector module. Thus, the mounting frame system can further allow releasable mounting of optical connector modules to the printed circuit board, such that the mounting is achieved in a safe and reliable manner.

A socket for an electric component includes a socket body in which a contact pin is provided in a housing part and a cover member provided so as to be rotatable with respect to the socket body. The cover member has a cover member body and a heat slug in contact with an electric component. The heat slug is configured so as to move downward and press the electric component by being pressed from above by a cooling head in a state in which the cover member is closed. In a state in which the electric component is housed in the housing part, a restricting mechanism allows the downward movement of the heat slug, whereas in a state in which the electric component is not housed in the housing part, the restricting mechanism prevents the downward movement of the heat slug.

A board connector includes terminal fittings (60) including board connecting portions (62), and a housing (10) made of synthetic resin containing a fibrous filler (80), disposed on a circuit board (90) and including a wall (18) rising in a vertical direction intersecting a surface of the circuit board (90). The wall (18) has a terminal mounting region (21) in which the terminal fittings (60) are mounted. The wall (18) includes elongated recesses (31) with a longitudinal direction aligned with the vertical direction and arranged side by side in a width direction in a distant region (22) located on a side of the terminal mounting region (21) distant from the circuit board (90).

Connectors providing solderless contact between conductors and a plurality of contact pads disposed on a substrate are disclosed. Connectors accommodating cables including pairs of insulated conductors are disclosed. Connector assemblies including frames for reversibly mounting the connectors with substrates having a plurality of contact pads are also disclosed.

A rail vehicle control relay board includes a main frame, a mother board and a daughter board assembly which are arranged in the main frame, the main frame includes a board face mounting frame and a daughter board mounting frame which protrudes from the board face mounting frame, the mother board is arranged in the board face mounting frame, and multiple daughter board assemblies perpendicular to the mother board are arranged side by side in the daughter board mounting frame, the daughter board assemblies are electrically connected to the mother board, and multiple first connectors configured to perform output outwards are arranged on the mother board. The rail vehicle control relay board has a high strength, and may reduce the daughter board loosening faults, extend a wiring space and increase the number of relays arranged.

According to one embodiment, a holder includes a recessed portion and including an opening, and includes a contact exposed from part of a bottom surface of the recessed portion. A lid covers the holder from the recessed portion side, makes a space in the recessed portion airtight in an engaged state in which the opening of the recessed portion is closed, and includes an elastic member pushing down a contained object contained in the recessed portion. And a lock mechanism forms the engaged state between the lid and the holder.

The present disclosure provides a USB interface and a mobile terminal. The USB interface includes a USB interface main body, an inserting tongue of a power line configured for coupling to an external power line via inserting portions and an inserting tongue of a ground line configured for coupling to an external ground line via inserting portions, in which a bottom of the inserting tongue of the power line and a bottom edge of the inserting tongue of the ground line are coupled to the USB interface main body; the inserting tongue of the power line has P inserting portions extending therefrom, where P is greater than or equal to 2; and the inserting tongue of the ground line has Q inserting portions extending therefrom, where Q is greater than or equal to 2.