Rotatable master control module of brushless synchronous motor

Abstract

The invention relates to a rotatable master control module of a brushless synchronous motor. The rotatable master control module comprises an AC (alternating current) exciter, an SCR (silicon controlled rectifier), an armature magnet exciting coil, a starting resistor and a control logic circuit, wherein the control logic circuit is arranged in a closed metal casing which is filled with epoxy; the starting resistor is connected in series with a diode and then connected with the armature magnet exciting coil in parallel; the cathode of the diode is connected with the anode output of the SCR, asilicon controlled which is opposite to the diode in polarity is connected with the diode in parallel, and the connection of the diode and the silicon controlled forms a motor asynchronous start loop. The rotatable master control module has simple structure and is easy to maintain. The control logic circuit solidified in the metal casing by epoxy can better prevent discrete components from being damaged by centrifugal force produced in the rotating process of a motor. By adopting the silicon controlled starting electrical switch, the problem of high maintenance rate of a mechanical centrifugal switch can be solved. The invention can improve the operational reliability of a brushless synchronous motor and reduce the operating cost.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for better performance and durability compared with existing designs that use solidified epoxies or other materials inside them. It also includes an improved design where there're no moving parts like bearings between different elements within it. Overall, this new method simplifies construction while still providing precise timing controls over rotating motors without requiring frequent replacements due to damage caused during operation.

Problems solved by technology

This technical problem addressed by this patented technology relates to improving the performance and reliability of conventional brush-type motors used for various applications such as electric power tools or vehicles. Traditional methods require expensive equipment that can lead to failure during startup transients due to changes made overtime caused by external forces like gravity on the machine's structure.

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