| 摘要 |
PURPOSE: An electric connection unit is provided to smoothly change the transfer rotary force corresponding to the change in a specific range of excitation currents as well as to extend the control range of the transfer rotary force at the maximum. CONSTITUTION: An electric connection unit is constituted of: an annular magnetic driving substance(3) fixed to supporting plates(8,12) on an input axis(4) to be integrated with the axis; a magnetic driven substance(10) having its outer circumference arranged against the inner circumference of the driving substance with a fine space; a magnetic particle(15) filling the fine space; an electromagnet unit(1) having an excitation coil(7), connected with brackets(6,19) to be supported to the input axis and an output axis(18) through bearings(13,19); the driven substance integrated with the output axis through a connecting member(5); and the bracket(6) and the connecting member(5) formed as a non-magnetic substance. The magnetic particle is magnetized if the magnetic force is communicated to the excitation coil as the driving substance is revolved by the axis. The driven substance is connected to the driving substance through the magnetic particle to transfer the rotary force of the driving substance and the currents flowing in the excitation coil controls the transfer rotary force.
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