1results about How to "Flat distribution" patented technology

This invention relates to the field of voice coil motor technology, specifically to a compact multi-air-gap uniform magnetic field high-thrust planar voice coil motor, comprising a motor outer frame, a first stator, a second stator, and a third stator. The first stator is located in the middle of the motor outer frame. Two sets of second stators are respectively installed on both sides of the first stator, forming an inner air gap between the two sets of second stators. Two sets of third stators are respectively located at the upper and lower ends of the motor outer frame, forming an outer air gap between the second stator and the third stator. A set of first inner movers is disposed in the inner air gap, and several sets of second inner movers are disposed in the outer air gap. In this invention, the magnetic flux starts from the permanent magnet, passes through the yoke, crosses the working air gap, and returns to the main channel of the yoke, reducing magnetic flux leakage into the outer space, thereby improving magnetic field utilization and reducing magnetic leakage. The parallel operation of multiple air gaps increases the total thrust and thrust density without significantly increasing the overall size.