Yes.

In 1995, the "brushless electric excitation motor" invented by Li Hongtao won the gold medal of the 5th China Patent and Invention Expo and the first prize of Yunnan Province Outstanding Invention and Creation.

Li Hongtao escaped from prison three times. Because he was too smart, the police uncle could not catch him. After escaping from prison, he drove around in a police car and showed off. He was already sentenced to death, but he invented a patent in prison through his knowledge of mathematics, physics and chemistry and won the invention expo. The gold medal, so successfully saved a life from the death penalty line, turned into a fixed-term prison sentence. Extended information

Brushless motor, also known as commutatorless motor and commutatorless DC motor. It uses a semiconductor inverter to replace the mechanical commutator in a general DC motor to form a DC motor without a commutator. Composed of a motor body and a driver, it is a typical electromechanical integration product.