阅读说明：本技术 变压器、变压装置及变压方法 (Transformer, transformation device and transformation method ) 是由 刘佩甲 赵德琦 吴壬华 于 2020-04-13 设计创作，主要内容包括：一种变压器、变压装置及变压方法,该变压器(100)放置在金属外壳(104)制成的凹槽内,该金属外壳(104)接地；该变压器(100)包括变压电路(101),该变压电路(101)包括变压器磁芯；该变压电路(101)的输入端连接电源(102),该变压电路(101)的输出端连接低压电池(103)；该变压器磁芯连接金属导体,该金属外壳(104)连接该金属导体,该金属导体用于将该变压器磁芯产生的耦合电压传导到该金属外壳(104)。该技术方案解决了变压器的磁芯与金属外壳之间拉弧放电的问题,优化了车载充电机的性能。(A transformer, a transformation device and a transformation method, wherein the transformer (100) is placed in a groove made of a metal shell (104), and the metal shell (104) is grounded; the transformer (100) comprises a transformation circuit (101), the transformation circuit (101) comprising a transformer core; the input end of the transformation circuit (101) is connected with a power supply (102), and the output end of the transformation circuit (101) is connected with a low-voltage battery (103); the transformer core is connected to a metal conductor, and the metal shell (104) is connected to the metal conductor, and the metal conductor is used for conducting the coupling voltage generated by the transformer core to the metal shell (104). The technical scheme solves the problem of arc discharge between the magnetic core of the transformer and the metal shell, and optimizes the performance of the vehicle-mounted charger.)