| 摘要 |
A rotary electromagnetic actuator and the car lamp low beam and high beam light switching device reforeof, refer to a lighting device or function characteristics or spare parts of its system. The rotary electromagnetic actuator, comprising a shell, a rotor, a stator, a rotating shaft and an end cover; a stator winding is arranged on the stator, and the stator is fixedly installed at the inner part of the shell to form a pair of arc-shaped stator magnetic poles on which electric excitation can be applied; the rotor, as an arc-shaped permanent magnet, is fixed on the rotating shaft and is located in a magnetic field space of the arc-shaped magnetic poles of the stator; and the rotor is matched with the arc-shaped stator magnetic poles to form an air gap closing magnetic path; an swing bar extending along radial direction of the rotating shaft is connected to two ends of the rotating shaft respectively; the light screen of the car lamp low beam and high beam light switching device is fixedly connected on the swing bars at two ends of the rotating shaft; and a swing angle of the light screen is identical with a rotating angle of the rotor. The invention realizes the low beam and high beam light switching by adopting the rotary electromagnetic actuator to drive the light screen, thereby avoiding the collision noise caused by the actuation and release of the electromagnet and providing more comfortable driving environment for users. |
