News

    Recently, the February 23 fire accident in Nanjing shocked the entire society, causing the unfortunate death of 15 people. It brought us painful lessons and profound warnings. After preliminary investigation, the cause of the fire was caused by the electric vehicle parking area. Statistics show that about 80% of electric bicycle fires occur during the charging process.

    Behind this tragedy, power NTC thermistors and temperature measurement NTC thermistors are often ignored by electric bicycle manufacturers, and they are important guarantees and effective measures to prevent similar incidents from happening. The power type NTC thermistor can effectively suppress the surge current; while the temperature measurement type NTC thermistor can monitor the abnormal temperature rise during the charging process, promptly detect and block the abnormal charging process, thereby preventing thermal runaway. Two NTC thermistors can minimize the risk of electric bicycle safety accidents. Therefore, NTC thermistor is an indispensable key component in the charging process of electric bicycles.

    Currently, NTC thermistors used in electric bicycle chargers have problems of uneven quality and the proliferation of three-no products, which has brought great safety risks to consumers. Many electric bicycle manufacturers purchased these NTC thermistors with substandard quality and then used them in their electric bicycle chargers. Not only did they not play the preventive and protective role they should have, but their own safety became a problem, which further increased the The safety risks of charging have been eliminated, resulting in frequent fire tragedies.

    In 2023, Nanjing Shiheng Electronic Technology Co., Ltd. took the lead in drafting the industry group standard for power NTC thermistors, which has been approved for implementation. The NTC thermistors it produces have CQC certification, UL, CUL certification, and TUV certification, and have passed AEC-Q200 testing. Behind these certifications is Shiheng's extremely strict control of product quality, product reliability and safety, as well as its deep understanding of customer safety needs. Shiheng Company has a complete and complete quality assurance system in the industry and is committed to providing customers with first-class products that are safe, reliable and trustworthy.

    Nanjing Shiheng Electronic Technology Co., Ltd., as a national high-tech enterprise and a national-level specialized and new small giant enterprise, aims to help customers improve the safety and reliability of electric bicycle chargers by providing high-quality NTC thermistors. We are well aware of the catastrophic consequences of safety incidents, so we will continue to work hard to provide customers with advanced and reliable products and solutions to ensure that their electric bicycle charging process is safe and reliable.

    In view of the safety status of electric bicycle chargers, the country has issued a mandatory national standard for electric bicycle chargers - GB 42296-2022. This standard proposes safety requirements for all electronic components used, including NTC thermistors. Higher requirements and the implementation of the new version of mandatory national standards will greatly improve the safety of electric bicycle chargers.