From：CTECHI GROUP Limited Release time：2019-01-15
Overview：There are many incidents about electric vehicle charging and fire. Every year, thousands of people suffer from personal and property losses due to electric vehicle fire accidents. Many people who don't know the truth blame the poor quality of batteries, but as the state revises the new charger standards, the situation will improve.
There are many incidents about electric vehicle charging and fire. Every year, thousands of people suffer from personal and property losses due to electric vehicle fire accidents. Many people who don't know the truth blame the poor quality of batteries, but as the state revises the new charger standards, the situation will improve.
On September 13, the Ministry of Industry and Information Technology issued a public announcement, publicly soliciting opinions on the conclusion of the centralized review of 740 recommended industry standards. Among them, QB/T 2947.1-2008 "Batteries and Chargers for Electric Bicycles Part 1: Sealed Lead-acid Batteries and Chargers" was included in the revision plan.
The newly revised standard requirements for electric vehicle chargers will include automatic power cut and temperature control compensation technology, so that the problem of charging fire will be eliminated in the future, which is a great good thing for the whole car factory or dealer.
Ma Guilong, an external professor of the National Light Electric Vehicle Center, has devoted ten years to the research of "charger temperature compensation" technology, which can effectively eliminate the electric vehicle charging fire accident. As we all know, the maximum charging voltage of the battery is different at different temperatures. If the charging voltage set by the charger exceeds this value, it means that the battery will be overcharged, resulting in water loss of the battery. If the charging voltage set by the charger is lower than this value, the battery is not full, long-term charging is unsatisfactory, and the battery is vulcanizable. At present, the maximum charging voltage set by the charger is a fixed value. Overcharging in high temperature season and undercharging in low temperature season shorten battery life.
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