Absolute encoder of tubular motor

Abstract

The invention relates to an absolute encoder of a tubular motor, and solves the shortcoming of bad use performance of the tubular caused by the reason that the specific positions of a rolling door and a window cannot be sensed by measuring the operational state of the tubular motor in the operation of the tubular motor in the prior art. According to the absolute encoder of the tubular motor provided by the invention, an input shaft drives a power shaft to rotate through a speed variator; code discs are arranged on the power shaft; the code discs are equipped with sensing parts; a sensor which is matched with the sensing parts for collecting signals is arranged on a substrate; when a part which is driven by the tubular motor moves from one limiting position to another limiting position, the power shaft rotates for one circle; the code discs positioned on the power shaft and the power shaft rotate synchronously; and the travel of the part which is driven by the tubular motor is divided into multiple nodes by the code discs, so that the specific position of the part which is driven by the tubular motor can be sensed conveniently through the code discs in the operation of the tubular motor, and the use performance of the tubular motor is optimized.

Description

technical field [0001] The invention relates to an accessory of a tubular motor, in particular to an absolute encoder of the tubular motor. Background technique [0002] Tubular motors are widely used in the driving machines of rolling shutter doors and windows to realize the automatic closing / releasing of rolling shutter doors and windows. [0003] The tubular motor in the prior art has a simple structure, and the closing / releasing of doors and windows is controlled by travel switches. Stop, this control method is very inconvenient in use, such as a sudden power failure when the doors and windows are not fully opened or fully closed. When the power is turned on, the tubular motor malfunctions. [0004] Therefore, the tubular motor in the prior art cannot sense the specific positions of doors and windows by measuring the running state of the tubular machine during operation, thereby affecting the performance of the tubular motor. Contents of the invention [0005] The i...

AI Technical Summary

Problems solved by technology

[0005] The absolute encoder of a tubular motor provided by the present invention aims to overcome the disadvantages of the prior art that the tubular motor cannot sense the specific position of the rolling door and window by measuring the operating state of the tubular motor when the tubular motor is running, resulting in poor performance of the tubular motor.

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