| 摘要 |
An electrical coupling unit (19) comprising an electrical connector (20) for push-fit electrical connection in an axial direction of the coupling unit to a mating electrical connector (20') of a receiving unit (12). The electrical connector (20) and the mating electrical connector (20') have respective keying elements (22, 22'). The electrical coupling unit (19) further comprises a backshell (21) fixed on the electrical connector (20) and extending on the rear therefrom to house electrical leads extending from the electrical connector (20). The electrical coupling unit (19) further has a coaxial actuation sleeve (23) surrounding the backshell (21). The actuation sleeve (23) is axially movable to effect the push-fit connection. The backshell (21) and the actuation sleeve (23) are operatively connected by a cam (29) and a cam surface (31a, 31b, 31c) such that movement of the actuation sleeve (23) in a forward axial direction towards the receiving unit (12) is resisted by contact between both connectors (20, 20'') to produce rotation of the backshell (21), thereby rotationally aligning both keying elements (22, 22') and allowing mating of both connectors (20, 20'). |
