| 摘要 |
An electrical connector unit affording a protective enclosure for a leadless circuit device (usually an integrated circuit) mounted on a flat substrate; the connector comprises a unitary one-piece base defining a receptacle for the device and a plurality of resilient metal contacts, mounted in the base, engaging the substrate of the device and biasing it outwardly of the base receptacle in an upward direction. A unitary one-piece insulator cover is mounted on the base and holds the device in the base receptacle, against the outward bias of the contacts; the cover has key projections at opposite ends that fits into keyways formed in the upper parts of two opposed end walls of the base. The keys and keyways are formed with mating upwardly inclined positioning and retaining surfaces that orient the cover on the base and lock it in place. One key is of resilient construction, releaseable to allow opening of the cover; release is effected by a tool inserted in small cavities in the cover that will not admit a finger or an ordinary screwdriver. |
