| 摘要 |
A board-to-board connector assembly consists of a plug and receptacle connector. The receptacle connector has a first dielectric housing having a front wall defining a recess with a flared inlet and a number of first contacts. Each first contact has a contact portion having an arced configuration, a free end resting against a front end of the front wall by a preload to make the contact portion have a tendency moving toward the recess, and a terminal portion extending through a locating block integrally formed at a rear side of the housing. The plug connector has a second dielectric housing defining a projection and a number of second contacts. Each second contact has a contact portion, a free end, a protrusion between the contact portion and the free end and a terminal portion extending through a locating block integrally formed at a rear side of the second housing. When the receptacle and plug connectors are connected, and a vibration is exerted thereto to cause a separation thereof, the protrusions will be blocked by the contact portions of the first contacts to prevent such separation. Furthermore, the contact force between the engaging contacts of the two connected connectors is a sum of the preload and a pushing force of the second contacts acting on the contact portions of the first contacts.
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