| 摘要 |
PROBLEM TO BE SOLVED: To secure output and current responsiveness of an actuator without increasing the size of an active vibration-proofing support device. SOLUTION: In the active vibration-proofing support device for controlling an inner pressure of a liquid chamber of which capacity changes depending on load input from outside by using an actuator 31 for reciprocatingly vibrating a movable core 53 by supplying current to a coil 39 wound around an outer circumference of a fixed core 33, as the coil 39 consists of first to third coils 39A, 39B, 39C electrically connected in parallel, self-inductance can be reduced relative to a case using a single coil and current responsiveness can be improved without increasing the size of the coil 39. As the first to third coils 39A, 39B, 39C are electrically connected in parallel, resistance can be reduced relative to the case using the single coil. Thus, diameter of conducting wires used for the coil 39 is reduced and the number of winding is increased to increase magnetomotive force and space factor of the coil 39 is increased to increase magnetomotive force. COPYRIGHT: (C)2007,JPO&INPIT |
