| 摘要 |
<p>PURPOSE:To open and close automatically a power source by turning on the power source by the use of a switch interlocking with a vane moving by the force of wind produced from the rotation and stop of a fan and turning off the power source according to the indication of a microprogram. CONSTITUTION:When a power source is closed, a cooling fan 1 is rotated, a vane 2 disposed at an air inlet is lifted and the contact output of a switch 3 go to an open circuit. A microprogram 6 is activated by a logical circuit, a self- diagnosis function of logic is operated and an indication for operating an automatic power source opening mechanism 7 is issued to the completing portion of the self-diagnosis function by the microprogram 6, and thereby a power supply circuit 8 of a computer processor 9 is operated and disconnected. Whereby, the rotation of the cooling fan 1 is stopped, lifting force of the vane 2 is weakened, the switch 3 constitutes the closed circuit again, the power source of the computer processor 9 is closed again and by repeating these operation, the power supply can be automatically closed and opened.</p> |
