公开(公告)号：US20240347837A1

公开(公告)日：2024-10-17

申请号：US18756967

申请日：2024-06-27

Applicant: BYD COMPANY LIMITED

Inventor： Jianglong TANG ,  Jianqiang LI ,  Zhengyuan LIAO ,  Long WAN ,  Wei HE

IPC: H01M50/244 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291

CPC classification number: H01M50/244 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291

Abstract: The present disclosure discloses an edge beam for a battery tray, a battery tray, a battery pack and a vehicle. The edge beam includes: an edge beam body. The edge beam body defines a cavity, and the edge beam body has a partition portion. The partition portion is located in the cavity, and the partition portion is connected between a top wall and a bottom wall of the cavity to divide the cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity and the second sub-cavity are arranged in a first direction of the edge beam in sequence. The first sub-cavity has a cross-sectional area of S1, the second sub-cavity has a cross-sectional area of S2, and S1 and S2 meet the relation formula: 0.8

公开(公告)号：US20250030102A1

公开(公告)日：2025-01-23

申请号：US18896850

申请日：2024-09-25

Applicant: BYD COMPANY LIMITED

Inventor： Zhijia TAN ,  Long WAN ,  Qingbo PENG ,  Ran WANG ,  Zenan SUN

IPC: H01M50/242 ,  B60L50/64 ,  H01M50/231 ,  H01M50/262

Abstract: A battery protection bottom plate includes a protective layer, a metal plate, and a fiber-reinforced resin layer. The metal plate is located between the protective layer and the fiber-reinforced resin layer, and the metal plate and the fiber-reinforced resin layer satisfies: 0 . 4 ≤ d 1 d 2 * e - ε 0 * σ 2 σ 0 * ε 2 + 0.5 ≤ 2. where d1 is a thickness of the fiber-reinforced resin layer in mm, d2 is a thickness of the metal plate in mm, ε2 is an elongation at break of the metal plate, σ2 is a tensile strength of the metal plate in MPa, ε0 is an elongation at break of the fiber-reinforced resin layer, and σ0 is a tensile strength of the fiber-reinforced resin layer in MPa.

公开(公告)号：US20240363943A1

公开(公告)日：2024-10-31

申请号：US18763601

申请日：2024-07-03

Applicant: BYD COMPANY LIMITED

Inventor： Jianglong TANG ,  Jianqiang LI ,  Zhengyuan LIAO ,  Long WAN ,  Wei HE

IPC: H01M50/242 ,  H01M50/249 ,  H01M50/289

CPC classification number: H01M50/242 ,  H01M50/249 ,  H01M50/289

Abstract: An edge beam for a battery tray, a battery tray, a battery pack, and a vehicle are provided. The edge beam includes an edge beam body. The edge beam body defines a cavity. The edge beam body has a partition portion. The partition portion is located in the cavity. The partition portion is connected between a top wall and a bottom wall of the cavity to partition the cavity into multiple sub-cavities. The multiple sub-cavities are arranged in sequence in a width direction of the edge beam. In a direction from an upper end to a lower end of the edge beam, the partition portion inclines away from the placement groove.

公开(公告)号：US20240356145A1

公开(公告)日：2024-10-24

申请号：US18759921

申请日：2024-06-30

Applicant: BYD COMPANY LIMITED

Inventor： Jianglong TANG ,  Jianqiang LI ,  Zhengyuan LIAO ,  Long WAN ,  Wei HE

IPC: H01M50/264 ,  H01M50/249

CPC classification number: H01M50/264 ,  H01M50/249

Abstract: The present disclosure discloses a battery pack and a vehicle. The battery pack includes: a battery core; a tray bottom plate, where the tray bottom plate has a pressed area, and the pressed area has an electrode core pressing area; and a side beam, having a side beam body with a supporting portion. In a first direction of the side beam, an orthographic projection of the supporting portion and an orthographic projection of the electrode core pressing area have an overlapping area. In a second direction of the side beam, the orthographic projection of the supporting portion and the orthographic projection of the electrode core pressing area have an overlapping length of M1, and M1 meets the relation formula: 9 mm≤M1.

公开(公告)号：US20240347838A1

公开(公告)日：2024-10-17

申请号：US18757816

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Weijia CHEN ,  Peng LU ,  Long WAN ,  Qingbo PENG ,  Liequn ZHU

IPC: H01M50/244 ,  H01M50/284 ,  H01M50/519

CPC classification number: H01M50/244 ,  H01M50/284 ,  H01M50/519 ,  H01M2220/20

Abstract: A battery cell assembly, a battery pack, and a vehicle are provided. The battery cell assembly includes at least two battery cells, a battery cell bracket, a flexible circuit board, and a connecting sheet. The at least two battery cells are disposed in a butt joint mode along the length direction of the battery cells. The battery cell bracket is connected at a junction position between adjacent battery cells. The flexible circuit board is disposed on the top surface of the battery cell. The connecting sheet is fixed on the battery cell bracket, the connecting sheet is connected to tabs of the battery cells and the flexible circuit board, the connecting sheet has a sampling section, and the sampling section is located on the top surfaces of the battery cells and is configured to be connected to an external sampling device to sample the battery cells.

公开(公告)号：US20230271504A1

公开(公告)日：2023-08-31

申请号：US18310667

申请日：2023-05-02

Applicant: BYD COMPANY LIMITED

Inventor： Long WAN ,  Zhipei LU ,  Qingbo PENG ,  Lei WU

IPC: B60L3/00 ,  H01M50/249 ,  H01M50/242

CPC classification number: B60L3/0046 ,  H01M50/249 ,  H01M50/242 ,  H01M2220/20

Abstract: A battery pack protection system and a vehicle are provided. The battery pack protection system includes a battery pack and a protective plate. The battery pack includes a tray. The tray includes a frame and a bottom plate. Battery modules are arranged on the bottom plate. The protective plate is arranged parallel to the bottom plate, and the protective plate is close to a side of the bottom plate. At least one sensor is arranged on the protective plate. The protective plate is detachably connected to the frame.

公开(公告)号：US20220416346A1

公开(公告)日：2022-12-29

申请号：US17777819

申请日：2020-10-19

Applicant: BYD COMPANY LIMITED

Inventor： Long HE ,  Huajun SUN ,  Yan ZHU ,  Liangwen TAN ,  Long WAN

IPC: H01M50/242 ,  H01M50/209 ,  H01M50/264

Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a casing and a battery assembly arranged inside the casing. The battery assembly includes a battery unit and a reinforcing member. The battery unit includes N cells. At least some of the cells in the battery unit are connected by M reinforcing members. An outer surface of each of the cells includes a bottom surface, a top surface, and lateral surfaces. The bottom surface of the cell faces a bottom surface of the casing. The lateral surfaces include a first lateral surface and two opposite second lateral surfaces. The first lateral surface has a largest area among the lateral surfaces. An area of the first lateral surface is greater than an area of the bottom surface and the area of the first lateral surface is greater than an area of the top surface. The N cells are arranged in sequence. The second lateral surfaces of two adjacent cells are arranged opposite to each other. The reinforcing member is fixedly bonded to the first lateral surface of each cell in Q adjacent cells. N>Q≥2.