公开(公告)号：EP3123554A4

公开(公告)日：2017-05-31

申请号：EP15815138

申请日：2015-05-12

Applicant: BYD CO LTD

Inventor： SHEN XI ,  JIANG WENFENG ,  LIU JIN ,  JIA XIAOHUI

IPC: H01M10/60 ,  B60H1/00 ,  B60K1/00 ,  B60L11/18 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H01M10/615 ,  H01M10/625 ,  H01M10/6571

CPC classification number: H01M10/615 ,  B60H1/00278 ,  B60K2001/005 ,  B60K2001/006 ,  B60L11/1874 ,  B60L11/1875 ,  H01M10/4207 ,  H01M10/443 ,  H01M10/486 ,  H01M10/625 ,  H01M10/6571 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20

Abstract: Embodiments of the present disclosure provide a battery heating system, a battery assembly and an electric vehicle. The battery heating system includes: a battery group having a positive terminal and a negative terminal; a switch having a first end connected with the positive terminal; a large-current discharge module, and a controller connected to the switch and configured to control the switch according to a temperature of the battery group. A first end of the large-current discharge module is connected to a second end of the switch, and a second end of the large-current discharge module is connected to the negative terminal. When the switch is turned on, the battery group discharges via the large-current discharge module and the battery group is heated due to an internal resistance thereof.

Abstract translation: 本公开的实施例提供了一种电池加热系统，电池组件和电动车辆。 该电池加热系统包括：具有正极端子和负极端子的电池组; 开关，具有与正极连接的第一端; 大电流放电模块以及连接到所述开关并被配置为根据所述电池组的温度来控制所述开关的控制器。 大电流放电模块的第一端连接到开关的第二端，大电流放电模块的第二端连接到负端子。 当开关打开时，电池组通过大电流放电模块放电，并且电池组由于其内部电阻而被加热。