What Are The Requirements For The Material Of The Micro Gear Motor?

In daily life, the micro gear motor is a relatively common drive device. The characteristic of the micro gear motor is that the lower the output speed, the greater the torque, and it is often used in applications with low speed and high torque. What kind of requirements are there for materials? Let me give you a brief introduction

1. The magnetic density of the iron core of the miniature gear motor

According to the characteristics of high and low working magnetic densities of the micro gear motor, the working magnetic densities of the iron cores of the micro motors can be divided into two categories: high and low. Low-silicon, silicon-free cold-rolled steel sheets are more suitable for low-power drive motors.

2. Magnetic Field Properties of Micromotors

The magnetic field of the miniature geared motor is divided into two types: constant magnetic field and alternating magnetic field. The iron core is the main part of the motor to carry the magnetic flux and fix the rotor winding. Magnetic poles, yokes or synchronous motor rotor poles, etc.) can be selected from electrical pure iron or 10-gauge steel.

3. The loss of the iron core of the miniature gear motor

First, the choice of the thickness of the silicon steel sheet, the thin silicon steel sheet is laminated with more insulation between the iron sheets, and the iron loss is small, but with the increase of the number of laminations, the punching and lamination workload will also increase. When thick silicon steel sheets are used, the insulation between the stacked iron sheets is less, and the iron loss increases, but the number of stacked sheets is reduced, and the processing volume is also reduced accordingly;

The second is the weight of the iron core of the miniature geared motor. For those with a large iron core of the geared motor, soft magnetic materials such as silicon steel sheets with a small iron loss value are used. For low-power motors with small iron core weight, the iron loss value of the iron core material can be appropriately relaxed.

4. Consider the directionality and uniformity of cold rolling

Considering the directionality and uniformity of the magnetic permeability of various gear reducer motors, cold-rolled and hot-rolled silicon steel sheets have two types: oriented (anisotropic) and non-oriented (isotropic), and small and medium-sized motor punching iron The core is generally made of non-oriented silicon steel sheet to meet the isotropic requirements of the motor core for the magnetic field distribution.

The above are the requirements for the application of materials for miniature geared motors. For more related inquiries, please continue to pay attention to us.