A compliant terminal comprises a pair of legs facing each other. Each of the legs is provided with an outwardly expanded portion in the intermediate portion. The expanded portions form an elastic contact portion for compressed fitting with a through hole. The leg portion is also provided with a pair of inward projections in the boundary region between the intermediate and free end portions. The inward projections of the two legs are substantially in contact. Therefore when the legs are inserted to the hole, the ends of legs outwardly swing about the contact point of the inward projections, and the compliant terminal is prevented from being withdrawn from the hole.
An onboard connector is mounted on a circuit board. The onboard connector includes a plurality of terminals, each of which having a first electrical contact portion formed at one end portion thereof so as to be electrically connected to a mating connector and a second electrical contact portion formed at the other end portion thereof so as to be press-fitted into the corresponding through-hole land to electrically contact an inner peripheral surface of the through-hole land, the second electrical contact portion being plated, and a connector housing including a plurality of terminal receiving chambers which are open to a lower face of the connector housing. The terminals are received in the connector housing so that the second electrical contact portions project from the lower surface of the connector housing through openings of the respective terminal receiving chambers. An opening peripheral surface of each terminal receiving chamber which defines the opening forms a plating shaving-receiving portion for receiving plating shavings which are shaved from the plating on the second electrical contact portion by the through-hole land when the second electrical contact portion is press-fitted into the through-hole land.
An I/O connector includes a housing, an insulating body and a plurality of terminals. The housing has a recess for receiving the insulating body. The insulating body defines fixing cavities on a bottom surface thereof and fixing grooves on a back surface thereof for receiving the terminals. The terminal has a fixing portion. One end of the fixing portion bends to form a soldering portion and the other end of the fixing portion bends sideward to form a bent portion. The end of the bent portion extends downward and separates into two elastic arms. Free ends of the two elastic arms bend toward two reverse directions respectively and then bend reversely to approach each other again to form two contact portions, whereby an opposite elasticity is generated to provide a firm engagement with a printed circuit board and to prevent transmission from cutting off while being shocked.
A metal terminal is inserted into a contact hole of an electrical circuit substrate and makes electrical contact at the contact hole. The terminal has a stop member that abuts the substrate at a rearward end of the contact hole thereby preventing further insertion of the terminal, and a removal prevention portion that abuts the substrate at a forward end of the contact hole to resist accidental withdrawal of the terminal. The removal prevention portion is resiliently deformable to allow it to pass through the contact hole during insertion of the terminal. Contact elements between the stop member and the removal prevention portion make electrical contact with the contact hole.
Contact pin has a compliant portion having two spaced-apart openings therein at locations adjacent to the ends of the compliant portion. The compliant portion is sheared along a shear line extending axially between the openings. The shear line divides the compliant portion into two side-by-side beams. The beams are displaced in opposite first directions away from the axis of the pins. The openings and the shear line define ears on each beam which extend towards the other beam. When the compliant portion is inserted into a circuit board hole, the ears are moved into overlapping relationship and the compliant portions are flexed in second opposite directions which are normal to the first opposite directions. The ears of each beam function as an intermediate support for the other beam. A high degree of adaptability as regards stock thickness and dimensions of the pin is achieved by virtue of the fact that the beams are flexed parallel to their major surfaces and are supported intermediate their ends by the ears.
An electrical connector (100) for electrically connecting a substrate (4) to a printed circuit board (5) comprises an insulative housing (2) and a plurality of contacts (3) arranged in matrix. The insulative housing defines a receiving slot (21) extending along a front-to-back direction from front surface thereof, a plurality of rows of through passages (23) arranged along a lateral direction of the insulative housing and each through passage extending substantially along an angular axis of both the front-to-back direction and lateral direction to communicate with the receiving slot. Through passages of the same row are spaced arranged along the front-to-back direction. The matrix of contacts is respectively arranged in said through passages of the insulative housing in an interference capacity with said receiving slot. Each contact comprises an upper compliant connecting portion (32) protruding into the receiving slot adapted for being compressed by said substrate to form electrical connection, a middle supporting portion (30, 33) received in the through passage to retain the contact in the insulative housing and a lower elastic connecting portion (31) exposed beyond corresponding through passage adapted for electrically connecting to said printed circuit board.
