To understand the Tongmao voice coil motor, we first introduced the origin of the same motor and the structure of our voice coil motor.
A voice coil motor is a special form of direct drive motor that converts electrical energy directly into linear motion mechanical energy without the need for any intermediate conversion mechanism transmission. The principle is: a cylindrical winding is placed in a uniform air gap magnetic field, the winding is energized to generate electromagnetic force to drive the load to make a linear reciprocating motion, and the magnitude and direction of the electromagnetic force can be changed by changing the strength and polarity of the current. Therefore, the voice coil motor can be in the form of a straight line or a rotation. The utility model has the advantages of high response, high speed, high acceleration, simple structure, small volume, good force characteristics and convenient control.
The traditional structure of the voice coil motor is not elaborated today. We have introduced it to you before. We have a short voice coil structure and a poor voice coil structure. Today we mainly look at the concentrated flux structure of the voice coil motor.
Under what circumstances do we need to use centralized flux technology? In general motion control, sometimes the required force is larger than that provided by a conventional moving voice coil motor. The voice coil motor in the conventional structure cannot meet the requirements. In order to solve this problem, it is necessary to improve the working efficiency of the voice coil motor. For this reason, the structure of the voice coil motor should be rationally designed so as to minimize magnetic leakage of the magnetic circuit. When designing a voice coil motor, it is always desirable that the magnetic flux lines of the magnets pass through the air gap as much as possible to increase the air gap magnetism so as to generate the maximum possible magnetic force.
At this time, we use concentrated magnetic flux technology, which can make the air gap of the manufactured motor magnetic flux equal to or even greater than the remaining amount in the magnet. The motor structure allows the magnet surface to be larger than the air gap surface. This design does not cause a leak, and all lines of magnetic force emitted from the surface of the magnet pass through the air gap.
Kunshan Tongmao voice coil motor has excellent quality products and is widely used in wind power generation, solar energy equipment, new energy equipment, high-speed rail equipment, electronic equipment, medical equipment, CNC machine tools, woodworking machinery, handling, conveying machinery, precision measuring instruments, and industrial automation. Industrial machinery, electronic semiconductor equipment, robots, robotic arms, injection molding machines, packaging machinery, etc., all require precision drive control and positioning.
This article originated from Kunshan Tongmao Electronics Co., Ltd. (
www.tmmotion.com) company original, reproduced please indicate the source.
Linear motor