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：US20230198068A1

公开(公告)日：2023-06-22

申请号：US17972120

申请日：2022-10-24

Applicant: BYD COMPANY LIMITED

Inventor： Huajun SUN ,  Zhipei LU ,  Qingbo PENG ,  Long WAN ,  Yan ZHU

IPC: H01M50/24 ,  H01M50/30 ,  H01M50/505 ,  H01M50/211 ,  H01M50/509 ,  H01M50/569 ,  H01M50/291 ,  H01M50/249 ,  B60K1/04

CPC classification number: H01M50/24 ,  H01M50/394 ,  H01M50/505 ,  H01M50/211 ,  H01M50/509 ,  H01M50/569 ,  H01M50/291 ,  H01M50/249 ,  B60K1/04 ,  H01M2220/20

Abstract: A battery pack includes a sealed housing, and at least one housing structural beam and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body, including a top plate and a bottom plate arranged opposite to each other in a first direction. The structural beam is located between the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, and is connected to the top plate and the bottom plate, and at least one electrode core string is provided in at least one accommodating cavity. An atmospheric pressure in the accommodating cavity is lower than an atmospheric pressure outside the housing. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load.

公开(公告)号：US20250015414A1

公开(公告)日：2025-01-09

申请号：US18891522

申请日：2024-09-20

Applicant: BYD COMPANY LIMITED

Inventor： Long WAN ,  Zhipei LU ,  Qingbo PENG ,  Zhijia TAN ,  Jianqiang LI

IPC: H01M50/242 ,  B32B5/12 ,  B32B15/14 ,  B32B15/18 ,  B60L50/64 ,  H01M50/224 ,  H01M50/227 ,  H01M50/229 ,  H01M50/231 ,  H01M50/249

Abstract: A battery protection bottom plate, a composite protection structure for a battery pack, and a vehicle. The battery protection bottom plate comprises an upper fiber reinforced resin layer, a metal plate, a fiber reinforced resin frame, and a lower fiber reinforced resin layer; the metal plate and the fiber reinforced resin frame are located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer; the metal plate is located inside the fiber reinforced resin frame; the top surface of the fiber reinforced resin frame is integrally connected to the upper fiber reinforced resin layer; the bottom surface of the fiber reinforced resin frame is integrally connected to the lower fiber reinforced resin layer.

公开(公告)号：US20250007066A1

公开(公告)日：2025-01-02

申请号：US18886350

申请日：2024-09-16

Applicant: BYD COMPANY LIMITED

Inventor： Long WAN ,  Zhipei LU ,  Qingbo PENG ,  Yan ZHU ,  Zhijia TAN

IPC: H01M50/242 ,  B60L50/64 ,  H01M50/224 ,  H01M50/229 ,  H01M50/231

Abstract: The battery pack composite includes a battery pack and a battery protection bottom plate. The battery protection bottom plate includes a metal plate and is disposed below the battery pack. A buffer zone is disposed between the battery pack and the battery protection bottom plate, and the buffer zone and the metal plate satisfying: 0.018 ≤ ( d - 0.4 ) ⁢ h σ * ε ≤ 0 . 0 ⁢ 8 ⁢ 5 , where d is a thickness in mm of the metal plate, σ is a tensile strength in MPa of the metal plate, ε is an elongation at break of the metal plate, and h is a height in mm of the buffer zone.

公开(公告)号：US20250007065A1

公开(公告)日：2025-01-02

申请号：US18886098

申请日：2024-09-16

Applicant: BYD COMPANY LIMITED

Inventor： Long WAN ,  Zhipei LU ,  Qingbo PENG ,  Yan ZHU ,  Zhijia TAN

IPC: H01M50/242 ,  B60L50/64 ,  H01M50/224 ,  H01M50/229 ,  H01M50/231 ,  H01M50/291

Abstract: A battery protective bottom plate, a battery pack composite protective structure and a vehicle. The battery protective bottom plate comprises an upper fiber reinforced resin layer, a metal plate and a lower fiber reinforced resin layer, wherein the metal plate is located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer, and the following condition is satisfied: (I) 1 ≤ ρ 2 * ( d 1 + d 2 + d 3 ) / d 2 ρ 2 + ( ρ 1 * d 1 + ρ 3 * d 3 ) / ( d 1 + d 3 ) * ( σ 1 * d 1 + σ 3 * d 3 ) / ( d 1 + d 3 ) σ 2 ≤ 2 .

公开(公告)号：US20240372198A1

公开(公告)日：2024-11-07

申请号：US18777729

申请日：2024-07-19

Applicant: BYD COMPANY LIMITED

Inventor： Long WAN ,  Zhipei LU ,  Qingbo PENG ,  Zhijia TAN ,  Zenan SUN

IPC: H01M50/242 ,  B60R16/033 ,  H01M50/224 ,  H01M50/227 ,  H01M50/229 ,  H01M50/231 ,  H01M50/249

Abstract: The present disclosure discloses a protective plate for a battery pack, a battery pack and a vehicle. The protective plate includes a first fiber-resin composite layer, a metal layer and a buffering layer laminated in sequence.

公开(公告)号：US20230084361A1

公开(公告)日：2023-03-16

申请号：US17801751

申请日：2021-01-28

Applicant: BYD COMPANY LIMITED

Inventor： Yi WANG ,  Qingbo PENG ,  Danfeng CHEN ,  Naishu TAO ,  Yan ZHU

IPC: H01M50/244 ,  H01M50/119 ,  H01M50/209 ,  H01M50/249 ,  B60L50/64 ,  B60L50/60

Abstract: A battery pack (100) and a vehicle including the battery pack (100) are provided. The battery pack (100) includes a housing, a battery core group (20), and a distribution box (30) detachably mounted on the housing. The housing is provided with a receiving space (101). Both the battery core group (20) and the distribution box (30) are received in the receiving space (101). The battery core group (20) is electrically connected to the distribution box (30). The housing includes a bottom plate (11) and an access cover (12). The bottom plate (11) is provided with an access port (110). The access port (110) communicates with the receiving space (101). The distribution box (30) faces the access port (110). The access cover (12) is detachably mounted on the bottom plate (11) and covers the access port (110).

公开(公告)号：US20220393248A1

公开(公告)日：2022-12-08

申请号：US17889346

申请日：2022-08-16

Applicant: BYD COMPANY LIMITED

Inventor： Shichao HU ,  Qingbo PENG ,  Yan ZHU

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M50/51 ,  H01M50/121

Abstract: A cell includes a housing and at least one electrode core assembly array encapsulated inside the housing. The electrode core assembly array includes N rows and M columns of electrode core assemblies, and the electrode core assembly includes an encapsulation film and at least one electrode core encapsulated inside the encapsulation film. The electrode core assemblies are arranged in rows, and each row includes M electrode core assemblies. The electrode core assemblies are arranged in columns, and each column includes N electrode core assemblies. The N electrode core assemblies in each column are connected in series to form an electrode core assembly string. The M electrode core assembly strings are connected in series. An air pressure between the metal housing and the encapsulation film is lower than an air pressure outside the metal housing.