Small and fine voice coil motor. Let's get to know the small and precise voice coil motor. How did it surprise me?

     The 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.
     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 greater 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 the 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 that 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.
     The voice coil motor, as a whole, is not bulky and bulky. It is a small, sophisticated image that is manufactured using integrated circuits. The motor structure is simple, high precision, high efficiency, high response, maintenance-free, no cogging effect, no need of reversing, Kunshan Tongmao independent research and development of the voice coil linear motor repetitive positioning accuracy can reach 0.1mm, especially suitable for short stroke , fast response, high precision closed-loop servo control.
     Kunshan Tongmao voice coil motor manufacturers continue to attract high-end talents and improve industrial chain clusters. At the same time, it attaches great importance to the combination of production, teaching and research with universities and research institutes, as well as the cooperation of powerful companies at home and abroad, combined with the company’s products' comprehensive technical strength and innovative technologies. Advantages, the pursuit of precision, efficient, complete sets, intelligent product direction, to provide quality products and services for the world.

This article originated from Kunshan Tongmao Electronics Co., Ltd. (www.tmmotion.com) company original, reproduced please indicate the source.