PUSH-BUTTON SWITCH Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: push-button switch has hollow case 1 with central hole 2, closed permanent magnet 6 having the shape of a circular ring with and axial magnetization, rod 3 with a push-button accommodating core 7 having the shape of a ball or cylinder, central contact 4 in the shape of a washer connected to rod 3, side fixed contacts 5 installed in hollow case 1. When rod 3 with the button is pushed and the interacting forces of core 7 and magnet 6 are overcome, rod 3 together with central contact 4 moves to the lower position closing the electric circuit by means of side contacts 5. As soon as the rod with the button is released, rod 3 with central contact 4 moves upwards to the initial position. EFFECT: enhanced reliability. 1 dwg