| 摘要 |
A contact element is provided, of the type having a domed middle portion that can be manually deflected against a terminal to close an electrical circuit, which avoids damage to the circuit and which can be easily held in place. The contact element has a domed middle portion with a convex front face, a peripheral portion, and a bend between the middle and peripheral portions. The contact element is laid against a printed circuit board, with the bend contacting a first terminal on the board and the middle portion being deflectable to contact a second terminal on the board. An insulative actuator has a button portion that can be pressed against the middle of the contact element, an outer capture portion which captures the outer edge of the contact element, and a hinge connecting the button and capture portions. The outer edge of the contact element lies away from the circuit board so burrs thereon cannot damage the circuit board, and so that the periphery of the contact element can be easily captured.
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