Abstract: An electrical connector comprises a dielectric housing (2), a number of contacts (4) in the housing, and a shield (3) enclosing the housing. Each contact comprises a contacting portion (40) for electrically contacting a corresponding terminal of a mating connector, an engaging portion (41) for securely latching within a corresponding channel, and a joining portion (42) for electrically connecting with a circuit board. The engaging portion of each contact defines a hollow area (410) symmetrical about a center line for providing the engaging portion with appropriate resilience and for allowing the engaging portion to inwardly deform. A bent portion (43) is further formed between the engaging portion and the joining portion of each contact, and has a smaller width than other portions of the contact for facilitating a bending operation by a tool and for preventing deflection of the joining portion.

Abstract: A switch device comprises a base forming a plurality of spacing walls thereon. A plurality of receiving holes is formed on longitudinal edges of the base for receiving corresponding fixed contacts and movable contacts therein. A plurality of sliding members is mounted on the base and a cover is received over the base. A pair of locking blocks is formed at lateral sides of the base for engaging with a pair of locking slots formed at lateral sides of the cover. To aid mass production, each fixed contact comprises a contacting portion, a pair of shoulders formed on lateral edges of the contacting portion for connecting with a carrier plate and an insertion leg extending from the contacting portion. Each movable contact comprises a contacting arm, a pair of connecting shoulders connected with a carrier plate and an insertion portion extending to the opposite to the contacting arm. Each fixed contact and movable contact forms a V-cut for facilitating the process of removing the carrier from the contact plate.

Abstract: A tact switch comprises an insulative base having contacts partially retained therein and partially exposing to exterior, wherein the exposed portions of the contacts face upward. Two separated steps are formed in the insulative base and located beyond the exposed portions of the contacts. A conductor plate has a frame positioned on the separated steps, an integral contacting portion surrounded by the frame and connected to the frame via two spring arms. Normally, the contacting portion registers with and separates from the exposed portion of the contacts. An elastic device is positioned on the conductor plate and it is deformable by depression thereon to thus deform the spring arms of the conductor plate and move the contacting portion of the conductor plate downward to electrically connect the exposed portions of the separated contacts simultaneously.

Abstract: A terminator board holder includes a beam and two support arms extending from opposite ends of the beam to form a U-shaped configuration defining an interior space for receiving a circuit board therein. Retaining members are formed on the beam and support arms in the interior space for retaining the circuit board. Each support arm has a reduced thickness for enhancing the resiliency thereof. A manipulating arm extends from each support arm, and is substantially parallel thereto and spaced therefrom. A barb is formed on each manipulating arm for engaging with an opening defined in a card edge connector thereby securing the terminator board holder in the connector. The barb has an arcuate engaging surface for accommodating a gap defined between the barb and the opening resulting from manufacturing tolerances.

Abstract: An electrical connector adapted to be mounted to a mother board, includes a casing defining a slot therein for receiving a daughter board and a plurality of pin pairs arranged in the slot for electrically engaging with the daughter board. The casing has a fixed member fixed in the slot and a switch key selectively fit into the slot at two locations corresponding to a 3.3V PCI connector and a 5V PCI connector. Thus, the connector may be selectively configured to be either a 3.3V PCI connector or a 5V PCI connector by setting the position of the switch key. The insertion of the switch key into the slot changes the spatial relationship between a pair of pins thereby transmitting a signal to the mother board for selecting the electrical voltage supplied to the connector corresponding to the configuration of the connector.

Abstract: An electrical connector comprises a dielectric body defining a number of passageways for receiving a number of contacts therein, a conductive shield cover enclosing the body, a dielectric housing enclosing the shield cover, and a conductive grounding member disposed between the shield cover and the dielectric housing for providing a grounding path therebetween and electrically contacting a conductive housing of an electrical instrument to which the electrical connector is fixed. A conductive resilient member is mounted on the body and forms latching mechanism for engaging with a mating connector thereby preventing the mating connector from disengagement and for providing a grounding path therethrough.

Abstract: A connector defining a plurality of apertures detachably receives a plurality of withdrawable contacts therein. Each contact includes a contacting portion, an intermediate portion which is formed with at least one curved concave portion for slidably receiving a protrusion projecting from at least one of two opposite inner walls which bound each aperture, and a soldering portion extending downward from the intermediate portion.

Abstract: A card edge connector for receiving and retaining a card edge of a complementary card includes an upper housing and a lower housing each of which defines a central slot therein and the two central slots are in alignment with each other for receiving the card edge of the complementary card. A plurality of contacts each of which includes an upper portion and a lower portion are received in the upper and lower housings so that the upper portion of each contact is slidably received in the upper housing and the lower portion of each contact is fixed in the lower housing.

Abstract: A horizontal tact switch comprises an insulative base having contacts partially retained therein and partially exposing to exterior. A metal cover is fixed to the insulative base and has a plan plate from an edge of which a lever curvedly extends. The lever has an upper contacting portion and a lower pressing portion and the upper contacting portion is proximate to a bottom surface of the plan plate. A pusher is movably received between the insulative base and the metal cover and has a ramp for driving the lever downward when the pusher is depress horizontally. An elastic device is positioned under the pusher and aligned with the lower pressing portion of the lever. A conductor plate comprises a plurality of spring arms each respectively aligned with corresponding one of the partially exposed contacts.

Abstract: A connector assembly (10, 10') for receiving electrical cards seated on a rigid mother board (12, 12'), includes the plural electrical card connectors (20, 20'), a flexible printed circuit (50, 50') and a connecting means (30, 30') wherein the plural connectors (20, 20') further includes an insulative housing (26, 26') means receiving a plurality of contacts (24, 24') and a shell means (40, 40') integrally forming a plurality of terminal (44, 44') therewith. The flexible printed circuit board (50, 50') includes a plurality of holes (521, 521') formed adjacent to an end thereof and solderably connected with the terminals (44, 44') and the contacts (24, 24') of the connectors (20, 20'), and a plurality of printed pads (581, 581') formed adjacent to the other end thereof and electrically connected with a plurality of circuit pads (18, 18') formed on the rigid mother board (12, 12') by means of the connecting means (30, 30').

Abstract: A retainer (10) for use with a card (200), comprises an elongated housing (12) defining a pair of towers (16) at two opposite ends. A rotatable member (22) positioned on the top portion (15) of the tower (16), includes a horizontal locking section (24) which can be horizontally engaged within a notch (202) of the card for latching the card (200) in position, and a vertical pivotal section (26) which can be rotated within the top portion (15) of the tower (16) and retain the rotatable member (22) in position with regard to the housing (12).

Abstract: An electrical connector for reliably and electrically connecting a daughter board and a mother board, includes a first insulative housing, a second insulative housing for electrically receiving the daughter board, and a pair of board locking devices. Each board locking device includes a first operative portion for providing a user with a manually locking operation, a protrusion for locking a corresponding notch of the inserted daughter board, and a moveable pin having a second operative portion for providing the user with a manually releasing operation. The moveable pin of the board locking device can be restricted within and linearly slide along a pair of L-shaped slots of the first housing whereby the user can selectively lock or release the daughter board. An elastic supporting portion is adapted to maintain a locking/releasing position of the board locking device with respect to the inserted daughter board under a stable and reliable situation.

Abstract: An interface device (24) includes a plurality of passageways (30) extending therethrough for receiving therein a corresponding number of conductors (100) wherein all of the tails (102) of the conductors (100) extend outward to be exposed to an open exterior for easy access for examination or rework. The passageways of the interface device (24) are adapted to receive the contact tails (16) of both of the stacked memory card connectors (12, 14). The conductors (100) of device (24) are arranged to have two-row conductors (100) become one-row tail (102) extending outward on one side of the housing (26) of the device (24) whereby through the interface device (24), the stacked memory card connectors (10) can be electrically engaged therewith for electrically connecting to the mother board (200).

Abstract: A memory card connector includes a pair of guide frames and a connector head. The ejection mechanism of the memory card connector comprises a top cover plate that has a pair of arms each extending from one end thereof for engaging one corresponding pair of guide frames. The top cover plate has a pair of guide rings each located at one end thereof and a guide sliding space formed between the guide rings. A rocker lever has a pivotal hole approximately at the center, and a guide containing opening is formed at one end. A push-out plate has a pair of sliding recessions and a pair of card pushing edges, wherein each pushing edge is located adjacent one end thereof and a guide rod formed between the sliding recession. A push rod has a rocker lever engaging slot at one end thereof. The pivotal hole of the rocker lever receives one of the guide ring shaft formed by the guide rings. The guide containing opening receives the guide rod of the push-out plate.

Abstract: A grounding strip for a memory card connector is disclosed to provide the electrical grounding of the memory card inserted. The memory card connector comprises a guide frame having a pair of guiding slots. Each of the guiding slots has formed therein a pair of notches and a receiving slot. The grounding strip comprises a substantially elongated body. A curved contact portion is formed approximate one end of the elongated body that arises generally above the surface of the elongated body. An end portion is formed at the remote end beyond the contact portion of the elongated body. A first pair of bent portions are respectively located at the opposing sides of the elongated body and extending away from the surface of the elongated body, and each of the first bent portions has formed thereon a latching means. When the grounding strip is assembled to the designated location on the guide frame of the memory card connector, the end portion would be received in the receiving slot of the guiding slot.