I remember that almost every student in the dormitory had a universal charger, which gave off colorful light every night.
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However, with the popularity of smart phones, many mobile phones have been replaced by non-removable batteries, and universal chargers have gradually disappeared from the public's sight. However, it is undeniable that the universal punch has really brought us great convenience and saved us a lot of trouble. Since the universal charger works so well, does anyone know who invented it?
In fact, the inventor of Wannengchong is a boy of 18 years old. His name is Chen Tianhan, born in 1985, Zhengzhou, Henan. He has been naughty since he was a child, and his favorite thing to do is to open things. As long as everything that can be torn down at home is torn down by him, which makes his parents very angry.
But Chen Tianhan is different from other Xiong Haizi. Although he likes to disassemble things, he will carefully study the disassembled parts and try to put them back. Needless to say, he also repaired several appliances at home. So over time, parents became accustomed to his disorderly unpacking behavior, and they still felt unaccustomed to it as long as they didn't unpack it for a day.
One day, Chen Tianhan stayed in his room to open things and study parts, when grandpa called him to eat. Hearing this, he couldn't wait to get on the bus and go out. Because grandpa's house has a lot of used electrical appliances, Chen especially likes to go to grandpa's house to open things.
When he came to grandpa's house, grandpa took out an old radio and told him that it was broken to see if he could repair it. So Chen took the radio without saying anything and began to disassemble the parts. As a result, it took only one afternoon to fix the radio, which made grandpa very happy.
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Chen Tianhan has a flexible mind and strong hands-on ability, and is curious about everything. He will take the initiative to ask the teacher questions he doesn't understand, so his academic performance is also very good. Later, it was successfully sent to a local key middle school.
After entering junior high school, Chen Tianhan became fascinated with physics for the first time. He listens to every physics class carefully, especially when he has to do experiments. So every time he can finish the task assigned by the teacher quickly and well, and his physics performance is also excellent. Not only the teacher likes him, but also his classmates are vying to be with him.
In the Spring Festival of 2002, Chen Tianhan's uncle and his family went to his house for dinner, and a large group of relatives sat together and chatted happily, which was very lively. At this time, my uncle went to Chen Tianhan and said that his mobile phone was dead and he didn't have a charger, so Chen Tianhan lent him his father's charger.
Hearing this, Chen brought his father's charger, but because of the wrong model, his uncle's mobile phone could not be charged at all. Later, Chen had to borrow a charger from his neighbor's house to solve this problem.
This incident triggered Chen Tianhan's thinking. Can he invent a charger that can charge all mobile phones? This can solve the problem of mismatch between charger and mobile phone.
After school started, Chen Tianhan told his tutor his ideas. After listening to this, the teacher agreed with his idea, but it is not easy to think about it and practice it. Moreover, there was no such charger on the market at that time, and the teacher advised him to give up the idea.
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However, Chen Tianhan was not defeated by the immediate difficulties, and then he began to study chargers. Every weekend, he will go to various mobile phone stores to check different models of mobile phone batteries and consult a lot of relevant information.
Finally, he found that most mobile phone batteries are similar, and the only difference is the distance between the battery contact points. So he thought that as long as different contacts are configured on the charger, all batteries can use one charger.
In this way, under the painstaking research of Chen Tianhan, the universal punch was born. Then he applied for a patent. At this time, Chen Tianhan was only 18 years old, but he won the first prize of the National Youth Science and Technology Innovation Competition with this patent, which is really awesome for young people.
Chen Tianhan became so famous for this invention that even Tsinghua University noticed him and offered him an olive branch. Finally successfully walked to Tsinghua. The universal charger has been welcomed by the masses since its listing, because it is very practical and cheap, and almost every family has a universal charger.