Brushless motor: dilemma, inspiration and breakthrough
In the vast expanse of technology, brushless motors are like a brilliant new star, shining with the brilliance of human intelligence and innovation. Its birth and development are accompanied by gripping stories intertwined with difficulties, inspirations, and breakthroughs.
Going back to 1993, Kunming city was shaken by a legendary story. Li Hongtao, a man deeply imprisoned and sentenced to death by the Kunming Intermediate People's Court for fraud and escape, stands on the cliff of fate. However, in the desperate situation, the light of technology quietly shone into his life. Li Hongtao, carrying the idea of a brushless motor, earnestly spoke to the warden and luckily received support. The road that was first attempted to invent was full of thorns, and the lack of equipment was like a giant rock, resulting in the failure of the first attempt. But he did not give up. With only a week left before the execution of the death penalty, Li Hongtao, with his unwavering perseverance and extraordinary intelligence, overcame numerous difficulties and successfully developed a brushless motor. Upon seeing the situation, the warden quickly applied to his superiors for a reprieve of the death penalty. Subsequently, his sentence was changed from death penalty to death with a reprieve, and then to a 17 year imprisonment. Finally, he regained his freedom in 2009. During his time in prison, he continued to cultivate and won three invention patents and three utility model patents. His invention, the "brushless electric excitation motor," won the gold medal at the 5th China Patent and Invention Expo and the first prize for excellent invention and creation in Yunnan Province in 1995, becoming a shocking comeback legend in the history of science and technology.
The gaze shifted to a quiet town, which was the birthplace of young inventor Jack's dream. Jack has been obsessed with the field of motors for a long time, immersed in the laboratory all day long, accompanied by various motor parts, and determined to improve traditional brushed motors. One day, an accident quietly occurred when a small component accidentally fell into the motor and got stuck between the brush and commutator, causing the motor to stop running instantly. Jack was extremely anxious and tried to extract the parts, only to find that it was almost an impossible task to complete. Just as he was about to reluctantly give up and dismantle the motor, inspiration flashed through his mind like lightning: if he directly discarded the brushes and commutator, could the motor still work normally? This bold idea ignited the flame of his innovation, thus embarking on an arduous journey of exploration. After countless experiments, adjustments, and optimizations, the world's first brushless motor was born in his hands. As soon as this new brushless motor was introduced, it amazed everyone. It runs smoothly like a quiet lake, with minimal to almost silent noise, and its efficiency far exceeds that of traditional brushed motors, opening up a new avenue for the motor industry.
Turning our attention back to the bustling technology exhibition, this is the stage where engineer Emily shines brightly. Emily brought her carefully crafted masterpiece - a bicycle equipped with a brushless motor. At first, among the dazzling array of exhibits, it did not attract much attention, and others only thought it was an ordinary electric bicycle. However, when Emily lightly pressed the start button, a miracle bloomed instantly. The bicycle seems to have been infused with infinite power, with surging and powerful power, climbing slopes like walking on flat ground, and almost no noise can be heard during high-speed driving. Originally, Emily cleverly installed a small and efficient brushless motor on her bicycle, integrating cutting-edge battery technology and intelligent control system to achieve a perfect balance between power and quietness. At the exhibition, Emily warmly invited the audience to test drive the bike in person, and all the participants praised it after riding. This not only recognizes the performance of the bike, but also affirms the practical value of the brushless motor, allowing people to truly see the infinite possibilities of integrating brushless motors into daily life.
From the invention and rescue on the brink of life and death, to the sudden inspiration in the laboratory, and to the wonderful applications in daily life, brushless motors have condensed the efforts and wisdom of countless pioneers along the way. These stories inspire those who come later to pursue technological progress. No matter what difficulties they encounter, as long as they have the passion for innovation, they will be able to break through the darkness and open up a new future.