公开(公告)号：US20240092286A1

公开(公告)日：2024-03-21

申请号：US18526299

申请日：2023-12-01

Applicant: BYD COMPANY LIMITED

Inventor： Caifang GUO ,  Axi QI ,  Jian LIU ,  Jian GAO ,  Lele LI

IPC: B60R16/023 ,  B60R16/033

CPC classification number: B60R16/0231 ,  B60R16/0239 ,  B60R16/033

Abstract: A low-voltage power supply system includes: a storage battery; an electric control circuit board, the electric control circuit board being connected with the storage battery, a battery management controller (BMC) and a motor controller being integrated on the electric control circuit board, and the motor controller being configured to control a power module; a control circuit being connected with the BMC and being configured to receive a control command of the BMC; a metal-oxide-semiconductor field-effect transistor (MOSFET) connected with the control circuit; and a battery management system. A contactor is arranged in the battery management system. The MOSFET is connected with the contactor and mounted to the electric control circuit board or the battery management system. The BMC is configured to control on/off of the MOSFET through the control circuit, to implement connection/disconnection between the storage battery and the contactor.

公开(公告)号：US20230402720A1

公开(公告)日：2023-12-14

申请号：US18457100

申请日：2023-08-28

Applicant: BYD COMPANY LIMITED

Inventor： Cheng FANG ,  Qingbo PENG ,  Bojun XIONG ,  Congji E ,  Jian GAO

IPC: H01M50/505 ,  H01M50/249 ,  H01M50/204 ,  H01M50/503 ,  H01M50/517

CPC classification number: H01M50/505 ,  H01M50/249 ,  H01M50/204 ,  H01M50/503 ,  H01M50/517 ,  H01M2220/20

Abstract: The present disclosure relates to a battery pack power connection system and a vehicle. The battery pack power connection system comprises a battery pack, a tray, a distribution box, a first drive connector, and a power connector. The battery pack comprises a plurality of battery cores. The tray is configured to support the battery pack. The distribution box is configured to distribute input or output information of the battery pack. One end of the first drive connector is connected with a first power system. The power connector is arranged in a cavity inner space of the tray, and the power connector is located between the plurality of battery cores. One end of the power connector is connected with the distribution box, and another end of the power connector is connected with another end of the first drive connector.

公开(公告)号：US20240239282A1

公开(公告)日：2024-07-18

申请号：US18621823

申请日：2024-03-29

Applicant: BYD COMPANY LIMITED

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

IPC: B60R16/033 ,  H02B1/015

CPC classification number: B60R16/033 ,  H02B1/015

Abstract: A 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, a circuit board disposed on the base, a low-voltage loop integrated into the circuit board and electrically connected to the low-voltage connection part, and tabs. At least a portion of the high-voltage loop is disposed on the base. The high-voltage loop is electrically connected to the high-voltage connection part, has a positive-electrode connection end and a negative-electrode connection end, and includes a disconnecting switch core fixed on the base. A first end of each of the tabs is electrically connected to the high-voltage loop, and a second end of each of the tabs is plugged into the circuit board for electrical connection with the low-voltage loop.

公开(公告)号：US20240239211A1

公开(公告)日：2024-07-18

申请号：US18621616

申请日：2024-03-29

Applicant: BYD COMPANY LIMITED

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

IPC: B60L50/60 ,  H01M10/42 ,  H01M10/44 ,  H01M50/249 ,  H01M50/284

CPC classification number: B60L50/60 ,  H01M10/425 ,  H01M10/44 ,  H01M50/249 ,  H01M50/284 ,  H01M2220/20

Abstract: A power distribution apparatus includes a base including an interface area, a high-voltage connection part and a low-voltage connection part fixed in the interface area. The power distribution apparatus further includes a high-voltage loop at least partially disposed on the base, being electrically connected with the high-voltage connection part, and having a battery positive-electrode connection end and a battery negative-electrode connection end. The components connected in the high-voltage loop is electrically connected to each other. The high-voltage loop includes a disconnecting switch core fixed on the base. A circuit board is disposed on the base, and a low-voltage loop is integrated into the circuit board. The high-voltage loop and the low-voltage connection part are plugged into the circuit board and electrically connected to the low-voltage loop.

公开(公告)号：US20230335813A1

公开(公告)日：2023-10-19

申请号：US18343041

申请日：2023-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Jian GAO ,  Qingbo PENG ,  Congji E ,  Bojun XIONG ,  Yongjun JIANG

IPC: H01M10/48 ,  H01M10/42 ,  H01M50/211 ,  H01M50/271 ,  H01M50/289 ,  H01M50/583 ,  H01M50/298 ,  B60K1/04

CPC classification number: H01M10/482 ,  H01M10/425 ,  H01M50/211 ,  H01M50/271 ,  H01M50/289 ,  H01M50/583 ,  H01M50/298 ,  B60K1/04 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20

Abstract: A battery pack includes a box, a sealing cover, a battery string, a sampling structure, and a battery information collector configured to be connected with a battery management system. The battery string and the sampling structure are arranged inside the box. The battery string includes multiple electrically connected batteries. The sampling structure includes multiple sampling lines. First ends of the sampling lines are connected with the corresponding batteries. Second ends of the sampling lines are connected with the battery information collector. The box is provided with an opening. The battery information collector is arranged at the opening of the box. The sealing cover is located on an outer side of the battery information collector. The sealing cover is configured to seal the opening of the box.

公开(公告)号：US20240092201A1

公开(公告)日：2024-03-21

申请号：US18524205

申请日：2023-11-30

Applicant: BYD COMPANY LIMITED

Inventor： Caifang GUO ,  Axi QI ,  Jian LIU ,  Jian GAO ,  Lele LI

IPC: B60L53/22

CPC classification number: B60L53/22 ,  B60L2210/10

Abstract: An integrated controller includes: a box; a controller and a charging/discharging converter disposed in the box; and a high-voltage interface assembly including a high-voltage interface disposed on the box and a high-voltage connector disposed in the box. The high-voltage connector is connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal.

公开(公告)号：US20230349976A1

公开(公告)日：2023-11-02

申请号：US18345249

申请日：2023-06-30

Applicant: BYD COMPANY LIMITED

Inventor： Jian GAO ,  Qingbo PENG ,  Congji E ,  Bojun XIONG ,  Yongjun JIANG

IPC: H01M50/211 ,  B60K1/04 ,  G01R31/364 ,  H01M10/48 ,  H01M50/583 ,  H01M10/42 ,  H01M50/507

CPC classification number: G01R31/364 ,  B60K1/04 ,  H01M10/4257 ,  H01M10/482 ,  H01M50/211 ,  H01M50/507 ,  H01M50/583 ,  B60K2001/0438 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A sampling structure includes a battery information collector, a plurality of fuses, and a plurality of collection lines. First ends of the collection lines are configured to be connected with corresponding batteries. Connection terminals are arranged on second ends of the collection lines. A plurality of pads are arranged on the battery information collector. First ends of the fuses are welded to the corresponding connection terminals. Second ends of the fuses are welded to the corresponding pads.