Ultra-thin encoder of permanent magnet servo high-speed motor

Abstract

The invention relates to an encoder, also named speed and displacement sensor, in particular to an ultra-thin encoder of a permanent magnet servo high-speed motor. The ultra-thin encoder comprises a shell, a rubber-formed wire protecting bushing, a circuit board provided with electric elements, a movable raster, a fixed raster, a movable raster base, a first bearing, a light emitting diode, a main support, a second bearing, a hollow shaft and a blade spring. The ultra-thin encoder of the permanent magnet servo high-speed motor is characterized in that the ultra-thin encoder further comprises a light emitting diode sleeve, the light emitting diode is sleeved with the light emitting diode sleeve, and the light emitting diode sleeve is arranged on the main support. Due to the fact that the light emitting diode of the encoder is installed in an embedded mode, space is saved, production positioning accuracy is improved, and the problem that in the prior art, a light emitting diode is fixed by means of a circuit board, and fixation is unstable and unreliable is solved. The ultra-thin encoder of the permanent magnet servo high-speed motor is compact, small in occupied space, simple, reasonable, and convenient and fast to assembly and adjust. Compared with existing encoders, the ultra-thin encoder of the permanent magnet servo high-speed motor is lighter, thinner and lower in cost. The installation space is small, and requirements of the modern industry for smaller size and more powerful function are met.

Description

technical field [0001] The invention relates to an encoder, also known as a speed and displacement sensor, in particular to an ultra-thin encoder for a permanent magnet servo high-speed motor. Background technique [0002] The servo motor encoder is a sensor installed on the servo motor to measure the position of the magnetic pole and the rotation angle and speed of the servo motor. The basic function of the servo encoder is the same as that of the ordinary encoder. The rotary incremental encoder outputs when rotating Pulse, the position is calculated by the counting device. When the encoder does not move or the power is cut off, it relies on the internal memory of the counting device to remember the position. In addition, the servo encoder is different from the ordinary encoder, that is Most of the servo motors are synchronous motors. When the synchronous motor is started, the magnetic pole position of the rotor needs to be known, so that the servo motor can be started with...

AI Technical Summary

Problems solved by technology

[0004] Due to the unreasonable structure of the traditional encoder, that is, the installation of the luminous tube is fixed by the circuit board, there are many shortcomings and deficiencies, which are specifically manifested in: ①. The luminous tube is not fixed firmly and unstable; ②. The overall structure of the encoder Not compact, the installation space is large, the installation and adjustment are not convenient and fast enough, ③, the weight is large, the thickness is large, the cost is high, and it does not meet the needs of modern industry requirements for small size and more powerful functions, and cannot replace high-end foreign similar products

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