| 摘要 |
PURPOSE:To prevent destruction of a socket for mounting due to heat by arranging so that any piece of electronic parts mounted in the socket is set off automatically when the temp. of the piece of parts exceeds a certain temp. CONSTITUTION:A socket 1 for electronic parts is equipped with the function that the piece of parts 6 mounted therein will slip off when its temp. exceeds a certain level. That is, a shape memory alloy is used to a spring 4, and the heat of an IC 6 will conduct to the spring 4 in contact with its lower part in the event of heat emission due to trouble occurrence in the IC 6. When the specified temp. is exceeded, this spring 4 elongates and pushes out the IC 6 from the socket 1. Supplying the power to the IC can thus be shut, and its heat emission will stop. This prevents damages of socket and printed circuit board due to heat and also burning of the base board and device due to firing. |
