公开(公告)号：EP3678276A1

公开(公告)日：2020-07-08

申请号：EP18851100.0

申请日：2018-08-31

Applicant: BYD Company Limited

Inventor： LUO, Hongbin ,  WANG, Chao ,  SHEN, Xiaofeng ,  WANG, Chengzhi ,  ZENG, Qiuyong

IPC: H02J7/00 ,  B60L50/50 ,  H01M10/42

Abstract: The present application discloses a battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system includes: a collection circuit; an equalization circuit; a controller; a charging branch circuit, connected to a charging device and a battery pack; and a first power supply branch circuit, connected to the charging device and the battery equalization system, and configured to supply power to the battery equalization system. When a state-of-charge of the battery pack is full and a cell in the battery pack needs enabling of equalization, the controller controls the charging branch circuit to disconnect, and controls the first power supply branch circuit to keep connected, so that an equalization module performs equalization processing on the cell that needs enabling of equalization. By improving the electrical connection structure of the battery equalization system, the present application extends the battery equalization time, improves the battery equalization effect, and resolves the technical problem of low equalization efficiency of the battery equalization system in the related art.

公开(公告)号：EP4391255A1

公开(公告)日：2024-06-26

申请号：EP22909609.4

申请日：2022-11-18

Applicant: BYD Company Limited

Inventor： GAO, Jian ,  E, Congji ,  ZHAO, Xiaopeng ,  PENG, Qingbo ,  WU, Zhenhan ,  WANG, Chengzhi

IPC: H02B1/24 ,  H01M50/519

CPC classification number: Y02E60/10 ,  B60L3/00 ,  B60L50/64 ,  H01M10/42 ,  H01M10/48 ,  H01M50/249 ,  H01M50/519 ,  H02B1/24 ,  H02J7/00

Abstract: The present disclosure provide a power distribution apparatus, a battery pack, and a vehicle. The power distribution apparatus includes: a base, a high-voltage connection part and a low-voltage connection part being fixed on the base; a high-voltage loop, at least a portion of the high-voltage loop being arranged on the base, the high-voltage loop being electrically connected to the high-voltage connection part, the high-voltage loop having a module positive-electrode connection end and a module negative-electrode connection end, and the high-voltage loop including a main disconnecting switch core fixed on the base; a circuit board, the circuit board being arranged on the base; a low-voltage loop, the low-voltage loop being integrated into the circuit board and being electrically connected to the low-voltage connection part; and a plurality of high-and-low-voltage tabs, an end of each high-and-low-voltage tab being connected to the high-voltage loop for electrical connection, and another end of the high-and-low-voltage tab being plugged into the circuit board for electrical connection with the low-voltage loop. The power distribution apparatus in the embodiments of the present disclosure has advantages such as a simple and compact structure, high space utilization, a small volume, a light weight, and low costs.

公开(公告)号：EP4389495A1

公开(公告)日：2024-06-26

申请号：EP22909614.4

申请日：2022-11-18

Applicant: BYD Company Limited

Inventor： E, Congji ,  GAO, Jian ,  PENG, Qingbo ,  WU, Zhenhan ,  WANG, Chengzhi

IPC: B60L3/00 ,  H02J7/00

CPC classification number: Y02E60/10 ,  B60L3/00 ,  B60L50/64 ,  H01M10/42 ,  H01M10/48 ,  H01M50/249 ,  H01M50/519 ,  H02B1/24 ,  H02J7/00

Abstract: The present disclosure provides a power distribution apparatus, a battery pack, and a vehicle. The power distribution apparatus includes: a base, the base being configured with an interface area, a high-voltage connection part and a low-voltage connection part being fixed in the interface area; a high-voltage loop, at least a portion of the high-voltage loop being arranged on the base, the high-voltage loop overlapping with the high-voltage connection part for electrical connection, the high-voltage loop having a battery positive-electrode connection end and a battery negative-electrode connection end, components connected in the high-voltage loop being electrically connected through overlapping, the high-voltage loop including a main disconnecting switch core, and the main disconnecting switch core being fixed on the base and the main disconnecting switch core and the base jointly forming a first module; a circuit board, the circuit board being arranged on the base; and a low-voltage loop, the low-voltage loop being integrated into the circuit board and the low-voltage loop and the circuit board jointly forming a second module, and the high-voltage loop and the low-voltage connection part being respectively plugged into the circuit board and electrically connected to the low-voltage loop. The power distribution apparatus in the embodiments of the present disclosure has advantages such as a simple and compact structure space utilization, a small volume, a light weight, low costs, versatility and high production efficiency.

公开(公告)号：EP4404418A1

公开(公告)日：2024-07-24

申请号：EP22885637.3

申请日：2022-10-10

Applicant: BYD Company Limited

Inventor： LU, Zhipei ,  DENG, Linwang ,  WANG, Chengzhi ,  TANG, Zeru ,  LIU, Yantao ,  XIONG, Bojun ,  WU, Xianyong ,  E, Congji

IPC: H02J7/00

CPC classification number: B60L50/60 ,  H01M10/42 ,  H01M10/48 ,  H01M50/519 ,  H01M50/569 ,  H02J7/00

Abstract: The present disclosure relates to the technical field of batteries, and provides a sampling device, a battery management system, and a vehicle. The sampling device includes multiple core function regions, an auxiliary function region, and a terminal connector. The multiple core function regions are configured to process information of a battery. The auxiliary function region has wiring arranged therein, and is configured to transmit a signal corresponding to the information. The multiple core function regions are cascaded through the wiring.