US Patent 7207819 Electrical connector with a detective switch

An electrical connector (100) for electrically connecting with a mating connector, includes an insulative housing (1) defining a cavity (16), a number of contacts (2) extending into the cavity, and a detective switch (3) accommodated in the housing (1). The detective switch includes a stationary switch (31) and a movable switch (32). The stationary switch and the movable switch respectively include a first and a second engaging portion (313, 323) for connecting/disconnecting with each other. The movable switch (32) includes a spoon-shaped projecting portion (324) positioned in a free end of the second engaging portion (323) and extending into the cavity (16) for engaging with the mating connector.