Abstract:
A key retention system for electrical connectors which includes a connector (12) including a lower backshell (42) having at least one generally T-shaped slot (51) extending therein from a side face (52) thereof for receiving a generally T-shaped key (61). Slot (51) and key (61) are configured to permit key (61) to be easily inserted into slot (51) in the correct orientation and to prevent key (61) from rotating or from moving laterally or longitudinally within slot (51) to any appreciable extent. Locking means comprising a projection (81) extending inwardly from the cover (43) for the lower backshell (42) is positioned to extend into the slot when cover (43) is mounted to lower backshell (42) to lock key (61) in position within slot (51).
Abstract:
A flexible power distribution system comprises a modular electrical connector assembly (10) has complete plug-in connections between a power supply and a ''mother'' board (12) or backplane which carries a plurality of ''daughter'' PC boards (13). The system includes a male contact member (30) in a receptacle (15) adapted to be received within a female contact member (45) in a plug (14), when the plug (14) is slidably inserted into the receptacle (15). Respective guard means are provided to prevent one's finger from being inserted into either the plug (14) or receptacle (15), respectively, to contact the female and male contact members (45, 30) therein; and the respective guard means mesh therebetween when plug (14) is inserted into receptacle (15). Male contact member (30) includes a plurality of relative long and narrow compliant beam contact elements (35), each of which is provided with a coined spherical tip (36) engaging the female contact member, thereby compensating for any torsional stresses on the contact elements. Means are provided for interlocking adjacent modules together in a side-by-side stacked array on a respective PC board.
Abstract:
A cable terminating cover retention system having two terminating covers (68, 70), each having leg means (72, 74) proximate the endwalls (90, 92) thereof, cooperate with an aperture (45) in a terminal support block (44) of connector housing (28). As conductors (56) are terminated on insulation displacement contacts (20) by moving the terminating covers (68, 70) toward the terminal support block (44), the leg means (72, 74) complement each other to substantially fill the aperture (45) and engage the sidewalls (102) of the apertures (45) in a first interference fit. As termination of the conductors (56) is completed, each leg means (72, 74) enters a recess or aperture (124, 126) in the other cable terminating cover (70, 68) and engages a protrusion (128, 130) therein in a second interference fit. The second interference fit is between the protrusion (128, 130) and an area (116) of the leg means (72, 74) not previously deformed by the first interference fit and retains the cable terminating covers (68, 70) in the terminated position.
Abstract:
An electrical coupler (10a, 10b) for interconnecting two modular telephone plugs (150) includes a housing (12, 12') having two mating faces (14, 14') with openings (16, 16') for receiving the two modular telephone plugs (150). The terminals (80) within the coupler comprise wire (78) which is formed to include two resilient portions (90, 100) disposed adjacent to the modular plug openings (16, 16'). A terminal subassembly is disclosed wherein a plurality of solid conductors (78) are aligned side-by-side and a web (70) is molded over the span of wires (78) such that when the wires (78) are cut to the desired length, the integrally molded web (70) forms a terminal subassembly for ease of installation of the terminals within the housing (12, 12').
Abstract:
A connector assembly (10) having an all plastic retention system has a housing (16, 18) in which tines (40) extend from a surface (36) thereof axially along contact receiving passages (38, 58). Each split frusticonical tine (40) has two tine members (42, 44). A transverse rib (54) extends along a surface (36) of the housing between adjacent tine members (42, 44) of adjacent tines (40). Each tine member (42, 44) has a pair of vertical ribs (50) extending along the exterior surface thereof upward from the surface (36) of the housing and sharing a portion of its volume with the transverse rib (54). The vertical ribs (50) and transverse rib (54) promote flow of plastic into all regions of the mould during moulding and support a contact (52) upon insertion thereof. A contact (52) inserted from the rear face (34) causes tine members (42, 44) to move radially outward until a retention bead (72) passes through an orifice (48) thence tine members (42, 44) return to an unbiased position and contact (52) is secured in the connector assembly (10) as retention bead (68) is positioned between an annular shoulder (74) and the ends (46) of tine members (42, 44).
Abstract:
An electrical connector assembly (10) of a plug (14) and receptacle (12) also includes resilient shunts (52, 150, 250) between selected pairs of adjacent terminals (42) within one of the connectors (14). The shunts (52, 150, 250) are deflectable out of commoning engagement upon full mating of the connectors by cam posts (90) of the mating connector (12), and resume commoning if the mating connector begins to become disengaged. Shunts (52, 150, 250) are secured along a surface (104, 214b) of a dielectric member (40, 140, 240) to form a locking and shunting assembly insertable into housing aperture (36) between rows of terminals (42) and can also lock the terminal latching arms (34) in place retaining the terminals in the housing (26). Each shunt has a fixed end (54, 152, 252) either staked to the dielectric member (40, 140, 240) at recessed joint (120) or latched in place against stop surfaces in all directions resulting from a simple sliding assembly maneuver. A free end (56, 158, 258) is held against the surface (104, 214b) but movable therealong so that an outwardly bowed spring section (58) between the fixed and free ends includes a bridging member (62, 162) engaging and commoning a pair of terminals (42) until deflected by a cam post (90) and compressed towards surface (104, 214b). Methods of securing the shunts to the dielectric member are disclosed.
Abstract:
A socket (2) for a flatpack semiconductor package (300) includes an insulative housing (4) with a plurality of terminal receiving channels (12) which open onto an upper surface (8). The channels (12) are in communication with apertures (18, 20) which are profiled for receiving tail portions (104) of terminals (98) therethrough for interconnection of the tail portions (104) to a printed circuit board. The electrical terminals (98) are disposed within the channels (12) with a contact portion (122) situated above the upper face (8) for contact with the flatpack semiconductor package leads (304). The terminals (98) are designed with a lengthened beam section which forms the contact portion (122) which defines the force deflection characteristics of the terminals (98) to be somewhat insensitive to the insertion depth of the carrier (250). The housing (4) includes latches (150) on the ends of the housing (4) which are rotatable to accept the carrier (250) and which latch the carrier (250) and package (300) within the housing (4) with the leads (304) of the package (300) loaded against the contact portions (122) of the terminals (98) with predetermined contact force.
Abstract:
A bell crank type strip feeding apparatus is disclosed in which one arm (36) of the bell crank (32) is coupled to an actuator (58) and the other arm (38) has a feed pawl (44) thereon for feeding the strip (2). The actuator (58) is a crank pin (58) which is moved along a circular path about a fixed center. The intermediate pivot of the bell crank (32) is mounted for movement along an arcuate path in response to the circular motion of the crank pin (58). The intermediate pivotal axis of the bell crank (58) is yieldingly supported so that it can move laterally of the arcuate axis path when the feed pawl (44) engages a fixed stop (45). A shearing mechanism (26) is also disclosed for shearing the strip material (2) at the conclusion of the feeding stroke.
Abstract:
A filtered electrical device (10) for being secured externally to an electrical article such as an electrical connector and electrically engageable to circuit paths thereof comprises a plurality of contact members (12), a housing member (40) having a plurality of filter receiving apertures (48) therein, a plurality of filter members (54) disposed in the apertures (48) and electrically connected to the contact members (12) and a ground means. The contact members (12) have first and second contact portions (14, 24), the first contact portions (14) being secured in the housing (40) and engageable with corresponding contact sections of the electrical article to which the filtering device (10) is secured. The second contact portions (24) are exposed along a bottom surface (50) of respective apertures (48) and are paired with and spaced from third contact portions (30) which are also exposed along a bottom aperture surface (50). Ground means include a bus means (34) secured in the housing (40) and extending outwardly from third contact sections (30). Filter members (54) are electrically engaged to respective pairs of second and third contact portions (14, 24). The device (10) can be manufactured in a continuous form by stamping a series of contact means in a strip (58) of metal, insert molding housing member (40) the desired length around a plurality of the contact means (70) to form a series of severable lead frames (60), placing filter members (54) in the filter receiving apertures (48), and severing individual devices (10). Alternatively, the strip of devices (10) can be stored in reel form until they are to be used.
Abstract:
A connector housing (10) included multiple rows of contacts (12, 14) with the housing (10) molded to provide an orientation to receive printed circuit board modules (D) inserted therein at an angle of substantially less than 90 degrees relative to a common printed circuit board module mounting board (M). The rows (12, 14) of the housings (10) have at each end board guide and support slots (44) containing latches (48) integrally therewith and a central structural web (60) connecting said rows (12, 14) and guide ends (44), the such web (60) providing structural support of said rows (12, 14) and at the same time, serving as a path of flow during the connector molding process.