摘要:
An electrical connector (1) straddle-mounted on an edge (20) of a printed circuit board (2) includes an insulative housing (10) having an elongated groove (11) for mating. A plurality of receiving channels (13) each used to receive a support subassembly (3) is formed adjacently to and communicated with the mating groove (11). The support subassembly (3) includes a base (30) with signal contacts (5) and a ground member (4) attached thereon. Every contact (5) includes an engaging end (51) exposed to the mating groove (11) and a tail end (52) extending out of the receiving channel (13) in a suspended status. And the ground member (4) includes a plurality of contacting legs (42) extending from the ground member (4) and being arranged to stagger with the tail end (52) of every contact (5) along the lengthwise of the connector (1). Several holding elements (43) are formed in a hook shape on one edge side of the ground member (4) to hook and be partially inserted into the apertures (22) formed on the housing (10) to stop further insertion of the support subassembly (3), and the holding elements (43) of the neighboring ground member (4) are inserted in the same apertures (22) so that they can establish a common ground path to reduce their needed contacting legs (42) to the printed circuit board (2).
摘要:
An electrical connector assembly (1) includes a mother board (10), a card edge connector (20) mounted on the mother board, a daughter card (30), and a pair of board hold downs (40) mounted on the mother board. The card edge connector includes a housing (21) defining a slot (22), and a number of contacts (23) disposed on opposite sides of the slot and exposed into the slot. The daughter card includes a mating edge (31) inserted into the slot of the housing, a number of conductive pads (33) on the mating edge for electrically connecting with the contacts of the card edge connector. The board hold downs are separated from the card edge connector and hold the daughter card in the card edge connector.
摘要:
An electrical system (1) includes a number of PC boards (10, 12), a same number of electrical connectors (14, 16), and a half number of extenders (18, 20, 22) provided in sets. Each set includes two PC boards, two electrical connectors mounted onto respective PC boards and one extender located between and engaging with the two electrical connectors. There are extenders that have various heights so that extenders of different heights mating with the electrical connectors establish various distances between the PC boards mounting the electrical connectors.
摘要:
An electrical connector (1) straddle-mounted on an edge (20) of a printed circuit board (2) includes an insulative housing (10) having an elongated groove (11) for mating. A support subassembly (3) is inserted from the opposing side of the housing (10) to expose its portions in the groove (11). The support subassembly (3) includes two bases (30) with attached signal conductors (5) and a U-shaped ground member (4). Two parallel-arranged side portions (40) of the U-shaped ground member (4) are integrally connected via its central portion and each of them is located parallel to a row of signal conductors (5) as their ground reference. The united ground member (4) can be used to establish ground path to the printed circuit board (2) by fewer contacting legs (42) sheared therefrom and help all parts of the support subassembly (3) to be installed in the connector housing (10) at one time.
摘要:
An electrical connector (1) comprises an insulative housing (10) defining a receiving cavity (18), a plurality of terminals (20) retained in the housing, and at least one ground bus module (30) received in the receiving cavity. Each ground bus module includes an insulative body (32) having a depressed inner surface in which the ground buses are integrally molded, and an opposite outer surface on which the mating beams of the terminals are positioned to be as close to corresponding terminals as possible to provide effective ground reference.
摘要:
An electrical connector (1) includes an insulative housing (10) and a number of contacts (28) attached to the housing. The contacts each have a contact tail (36) downwardly extending beyond a mounting surface (32) of the insulative housing for inserting into throughholes (42) of a PCB (40). The contact tails are overlapped in pairs and each pair of contact tails is inserted into the same throughhole of the PCB. Some pairs of contact tails, called retention contact tails (68), have protrusions (52) deviating from each other for bearing against peripheral walls of the throughholes of the PCB thereby producing retention force. The other pairs of contact tails, called non-retention contact tails (70), do not have protrusions and do not interfere with peripheral walls of the other throughholes thereby reducing the insertion force. The retention contact tails can be modified to the non-retention contact tails by severing the protrusions therefrom.
摘要:
An electrical device 1 for interconnecting two printed circuit boards 2, 3 (PCBs) at a large distance includes a first connector 4 and a second connector 5 for being respectively mounted on the two PCBs, and an extender 6 located between and electrically connected with the first and second connectors. The extender includes a frame 7 for being fixed to one PCB, and two circuit boards 8, 9 attached to the frame and connecting with the first and second connectors at opposite ends thereof.
摘要:
An electrical connector (1) includes an insulative member (10) defining two rows of slanted cavities (30) along a longitudinal direction thereof, two rows of conductive contacts (12) obliquely received in corresponding slanted cavities and two grounding plates (32) with over-molded insulative inserts (34) attached to the insulative member. Each grounding plate electrically contacts some selected conductive contacts via ribs (39) thereof, which are therefore grounding contacts, and is isolated from the other conductive contacts, which are therefore signal contacts. Each grounding plate has a number of enlarged tails (38) for elastically engaging with corresponding plated holes (54) in a mother board (46) that the electrical connector is adapted to be mounted on. The conductive contacts slide along the mother board upon insertion of a daughter board (52) to the electrical connector.
摘要:
A cable connector includes an insulative housing (10), a pair of individual terminal modules (12) assembled to the housing, a cable end (14) connected to the terminal modules, an insulator (16) located between the terminal modules and a cover (18) over-molded to the housing and together with the housing enclosing the cable end and the terminal modules. The housing defines two slots (30). Each terminal module includes an insulative base (32), a number of terminals (34) and a grounding blade (38) attaching to the base. The cable end includes a number of conductive cores (60) and a corresponding number of metal webs (62) circling respective conductive cores. The conductive cores are electrically connected to corresponding terminals and the metal webs are electrically connected to corresponding grounding blades. The terminal modules are inserted into the corresponding slots after the terminals and the grounding blades are attached to the insulative base. The insulator located between the two rows of terminals and bearing against the cables to prevent the two rows of terminals drawn by the cables from tipping toward each other.
摘要:
A wheelchair including a seat body and at least one wheel module disposed at a bottom of the seat body is provided. The wheel module includes a motor, at least one wheel, and a transmission unit coupled between the motor and the wheel. The transmission unit has at least one one-way bearing. The motor outputs a first rotating moment and a second rotating moment with opposite directions to the transmission unit. The one-way bearing transmits one of the first rotating moment and the second rotating moment to the wheel to drive the wheel to roll, such that the seat body is in linear motion, or so the wheel module rotates relative to the seat body in the directions of the first or the second rotating moments. The shafts of the first and the second rotating moments are perpendicular to the rotating shaft of the wheel.