Electromagnetic actuating device with driving and holding tapped coil

An electromagnetic actuating device with a driving and holding tapped coil is through a driving coil having a driving tap and a common connector to appear lower impedance being electrically actuated to produce a larger electromagnetic actuating force on the electromagnetic actuating device, then the driving coil is operatively controlled by the switching device to be switched to have a holding tap and a common connector to appear relatively higher impedance thereby holding electrification for excitation thus reducing total current passing through the driving coil, while required operating characteristics of the electrified electromagnetic actuating device can still be satisfied thereby saving electric power and reducing heat loss in the driving coil of the electromagnetic actuating device;

• it mainly comprises:
• A power source device (100):
• it is constituted by electrical machineries, electronic components, or power source supply devices containing microprocessor and relevant software with relevant power supply functions as well as voltage and current control functions to receive DC or AC power supply and to be operatively controlled by the switching device (101) to provide AC power output or DC power output of lower voltage, or DC power output of semi-wave or full waved or chopped wave, etc;
• A switching device (101):
• it is constituted by an electromechanical switch, an electric relay, an electromagnetic switch or a solid state switching device, etc. operable by the manual, mechanical, fluid or electrical power being operated by the manual, mechanical, fluid or electrical power is through supplying AC or DC power to the driving coil (102′) of the electromagnetic actuating device (102) having a driving tap (T1), a holding tap (T2) and a common connector (T0) to provide a switching function for electrification and power cut-off, or it is through the switchover operation by the switching device (101) to allow the driving coil (102′) having a driving tap (T1) and a common connector (T0) to appear relatively lower impedance to be electrified by passing through excited current (Ia) for excitation, wherein the driving coil (102′) being actuated for excitation by AC power input is operatively controlled by the switching device (101) to be switched to have a holding tap (T2) and a common connector (T0) to hold electrification by passing excited current (Ia) for excitation, total current on the driving coil is reduced, while operating characteristics of the electrified electromagnetic actuating device is still ensured by the electromagnetic effective force;
• The electromagnetic actuating devices (102):
• it is the device installed with a AC or DC powered driving coil (102′) having a driving tap (T1), a holding tap (T2) and a common connector (T0) for electromagnetic driving effects, or operating type electromagnetic actuating devices which can be driven by the driving coil or operated by numerous manual or mechanical power methods;
• wherein the driving coil (102′) having a driving tap (T1) and a common tap (T0) that appearing lower impedance is operatively controlled by the switching device (101) to be electrically actuated for excitation and after actuation further being manipulated by the switching device (101) to be switched to have a holding tap (T2) and a common connector (T0) to appear relatively higher impedance thus holding electrification for excitation thereby saving electric power and reducing heat generation, while required operating characteristics of the electromagnetic actuating device in electrification status can still be satisfied by the electromagnetic effective force.