Simple magnetic-rotation driving device

Abstract

The invention relates to the technical field of electromagnetic driving, in particular to a simple magnetic-rotation driving device comprising a motor skeleton, a skeleton support cover, a rotating shaft, a rotating rod, a first permanent magnet and a coil winding. The motor skeleton and the skeleton support cover are fixed connected. A bottom feature hole is formed in the bottom of the motor skeleton; a top feature hole is formed in the skeleton support cover; and the bottom feature hole and the top feature hole are arranged at the same axis. The rotating shaft passes through the bottom feature hole and the top feature hole and is connected with the rotating rod that can rotate around the axis of the rotating shaft. The first permanent magnet is fixedly connected to the rotating rod; thecoil winding is arranged outside the first permanent magnet in a non-contact manner; and the coil winding and the motor skeleton are fixedly connected. A second permanent magnet is fixedly installed at the motor skeleton. The motor structure is simple and the driving mode is simple; the flexibility of motor rotation is improved; and the usage cost of the motor is lowered.

Description

technical field [0001] The invention relates to the technical field of electromagnetic driving, in particular to a magnetic rotation driving device with a simple structure. Background technique [0002] The motor is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. It generally includes a stator, a rotor and a casing, which can generate driving torque and serve as a power source for various equipment. The traditional motor structure is relatively complicated. Take the aperture motor used to adjust the aperture size in the camera as an example. The camera adjusts the amount of light entering the aperture by controlling the aperture size, thereby changing the imaging quality of the camera. In order to control the aperture size of the camera, the aperture motor is generally used as a power source to drive the aperture blades to realize the control of the aperture size. [0003] Most came...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a magnetic rotary drive device with a simple structure for the problem that the current aperture motor is not flexible enough and the structure is relatively complicated, which leads to high cost of camera aperture control.

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