公开(公告)号：EP2413454A1

公开(公告)日：2012-02-01

申请号：EP11166882.8

申请日：2011-05-20

Applicant: Byd Company Limited

Inventor： Xu, Wenhui ,  Han, Yaochuan ,  Feng, Wei ,  Yang, Qinyao ,  Xia, Wenjin ,  Ma, Shibin

IPC: H02J7/00 ,  H01H9/54 ,  H01M10/50 ,  H02M5/00

CPC classification number: H01M10/5006 ,  H01M10/615 ,  H01M10/625 ,  H01M10/657 ,  H01M10/6571 ,  H02J7/0057 ,  Y02E60/12

Abstract: The present invention provides a battery heating circuit, wherein, the battery comprises a first battery and a second battery; the heating circuit comprises a first switch unit, a second switch unit, a damping element R1, a damping element R2, a current storage element L3, a current storage element L4, a switching control module and an energy storage element V1; the first battery, damping element R1, current storage element L3, energy storage element V1 and first switch unit are connected in series to constitute a first charging/discharging circuit; the second battery, damping element R2, current storage element L4, energy storage element V1 and second switch unit are connected in series to constitute a second charging/discharging circuit; when the energy storage element V1 is charged or discharges, the direction of charging/discharging current in the second charging/discharging circuit is reverse to the direction of charging/discharging current in the first charging/discharging circuit; the switching control module is electrically connected with the first switch unit and second switch unit, and is configured to control the first switch unit and second switch unit to switch on in alternate, so as to control the electric energy to flow among the first battery, energy storage element V1 and second battery. The battery heating circuit of the present invention can achieve high heating efficiency.

Abstract translation: 本发明提供一种电池加热电路，其中，电池包括第一电池和第二电池; 加热电路包括第一开关单元，第二开关单元，阻尼元件R1，阻尼元件R2，电流存储元件L3，电流存储元件L4，开关控制模块和储能元件V1; 第一电池，阻尼元件R1，电流存储元件L3，储能元件V1和第一开关单元串联连接构成第一充放电电路， 第二电池，阻尼元件R2，蓄电元件L4，储能元件V1和第二开关单元串联连接构成第二充放电电路， 当能量存储元件V1充电或放电时，第二充电/放电电路中的充电/放电电流的方向与第一充电/放电电路中的充电/放电电流的方向相反; 所述开关控制模块与所述第一开关单元和第二开关单元电连接，用于控制所述第一开关单元和所述第二开关单元交替接通，以控制所述第一电池之间的电能流通， 能量存储元件V1和第二电池。 本发明的电池加热电路可以实现高加热效率。