公开(公告)号：US20250015427A1

公开(公告)日：2025-01-09

申请号：US18887387

申请日：2024-09-17

Applicant: BYD COMPANY LIMITED

Inventor： Yan ZHU ,  Zenan SUN ,  Xufeng LIU ,  Xinyue WANG

IPC: H01M50/342 ,  F16K17/18

Abstract: An explosion-proof valve includes a valve body that includes a connection section at an edge of the valve body and a scored groove, and an opening region on a radial inner side of the connection section. A shape of an orthographic projection of the valve body and a shape of an orthographic projection of the opening region in a depth direction of the scored groove are non-circular. An outer edge of the orthographic projection of the opening region is an opening boundary. An area of the orthographic projection of the opening region is Sopen, an area of an orthographic projection of the connection section is g Sconnect, and an area of the orthographic projection of the valve body is Stotal, where Sopen, Sconnect, and Stotal meeting: 10%

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：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：US20250015428A1

公开(公告)日：2025-01-09

申请号：US18888205

申请日：2024-09-18

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Guangan CHEN ,  Xin GAO ,  Cuicui WANG ,  Zenan SUN

IPC: H01M50/342

Abstract: A explosion-proof valve body of a battery has an opening region, which is provided with an explosion-proof notched groove at the edge thereof. The explosion-proof notched groove comprises a first straight line section, two arc sections and at least one second straight line section. Two ends of the first straight line section are connected to the two arc sections, respectively; at least one of the ends of the second straight line section is connected to the arc section; and the first straight line section is arranged parallel to the second straight line section. In a depth direction of the explosion-proof notched groove, an orthographic projection of the opening region is in an oblong shape. An outer edge of the orthographic projection of the opening region is a predetermined opening boundary, and the area of the orthographic projection of the opening region is S, where S=a×b+π×b2/4, S≥80 mm2, and b≥6 mm.