无轨电动伸缩门的原理。
Principle of trackless electric telescopic door.
无轨电动伸缩门的工作原理是基于电磁感应定律。整个电路欧姆定律。基于电磁力定律。当磁极沿顺时针旋转时，磁极的磁线切割转子导线，导线中感应到电势。电势的方向由右手定律确定。因为运动是相对的，如果磁极不移动，转子导线保定平面设计培训  防撞墙模具 防撞墙模具 防撞护栏模具 大棚遮阳网 遮阴沿逆时针旋转，电势也可以在导线中感应到。在电势的作用下，在封闭的导线中产生电流。电流与旋转磁极的磁场相互作用，使转子导线受到电磁力（安培力）的影响，电磁力的方向可以通过左手定律来确定。电磁力产生电磁转矩，转子旋转。在设计中，电机用于驱动电动伸缩门的开关，完成电动伸缩门的控制。
The working principle of trackless electric telescopic door is based on the law of electromagnetic induction. Ohm's law of the whole circuit. Based on the law of electromagnetic force. When the magnetic pole rotates clockwise, the magnetic line of the magnetic pole cuts the rotor wire, and the potential is induced in the wire. The direction of the potential is determined by the right-hand law. Because the motion is relative, if the magnetic pole does not move, the rotor wire rotates counterclockwise, and the potential can also be induced in the wire. Under the action of electric potential, an electric current is generated in a closed conductor. The interaction between the current and the magnetic field of the rotating magnetic pole makes the rotor wire affected by the electromagnetic force (ampere force). The direction of the electromagnetic force can be determined by the left-hand law. Electromagnetic force generates electromagnetic torque and the rotor rotates. In the design, the motor is used to drive the switch of the electric telescopic door to complete the control of the electric telescopic door.