公开(公告)号：US20220077539A1

公开(公告)日：2022-03-10

申请号：US17419443

申请日：2019-07-30

Applicant: BYD COMPANY LIMITED

Inventor： Zhenghua REN ,  Zhipei LU ,  Kun GUO ,  Qingbo PENG ,  Yan ZHU

IPC: H01M50/383 ,  H01M50/249 ,  H01M50/209 ,  H01M50/30 ,  H01M50/317 ,  H01M10/48 ,  A62C3/07 ,  A62C3/16

Abstract: The present disclosure relates to a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate and a side beam, and the side beam is disposed around the base plate and defines, together with the base plate, an accommodating space for battery cells. The base plate is formed therein with an air passage, and the base plate is provided with several inlet vents and at least one exhaust vent. The inlet vent is configured to introduce a flame, smoke or gas discharged from the battery cell into the air passage, and the exhaust vent is configured to discharge the flame, smoke or gas inside the air passage.

公开(公告)号：US20220059901A1

公开(公告)日：2022-02-24

申请号：US17419433

申请日：2019-07-24

Applicant: BYD COMPANY LIMITED

Inventor： Zhenghua REN ,  Zhipei LU ,  Kun GUO ,  Qingbo PENG ,  Yan ZHU

IPC: H01M50/358 ,  H01M10/48 ,  H01M50/249 ,  A62C3/16 ,  A62C3/08

Abstract: Provided are a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate, a side beam, and several partition plates, the side beam is disposed around the base plate and defines, together with the base plate, an accommodating space for battery cells. The partition plates are disposed on the base plate and divide the base plate into several regions for placing the battery cells. The partition plates and the side beam are each formed therein with an air passage and are in communication with each other. The partition plates are provided with several inlet vents, and the side beam is provided with at least one exhaust vent. The inlet vent is configured to introduce a flame, smoke or gas discharged from the battery cell into the air passage.

公开(公告)号：US20200373542A1

公开(公告)日：2020-11-26

申请号：US16968700

申请日：2019-01-29

Applicant: BYD COMPANY LIMITED

Inventor： Mingming ZHANG ,  Qingbo PENG ,  Jia LIU ,  Muqing HUANG ,  Yan ZHU ,  Jianhua ZHU

IPC: H01M2/20 ,  H01M2/10 ,  H01M2/26 ,  B60K1/04

Abstract: An integrated structure for exporting battery power (100), a battery pack (200), and a vehicle (300) are disclosed herein. The integrated structure for exporting battery power (100) includes an end plate (21) as a part of a battery pack housing and a copper bar for leading out two electrodes of a battery (10) to outside of the battery pack housing, where the end plate (21) is made of an insulating material, and the copper bar is encapsulated in the end plate (21) by injection molding, electrical connection portions of the copper bar being exposed.

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：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：US20240030534A1

公开(公告)日：2024-01-25

申请号：US18475550

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Jiajia CHEN ,  Jianglong TANG ,  Qingbo PENG

IPC: H01M50/231 ,  H01M50/211 ,  H01M50/224 ,  H01M50/227 ,  H01M50/588 ,  H01M50/59 ,  B60R16/033 ,  C09D175/04

CPC classification number: H01M50/231 ,  H01M50/211 ,  H01M50/224 ,  H01M50/227 ,  H01M50/588 ,  H01M50/59 ,  B60R16/033 ,  C09D175/04 ,  H01M2220/20

Abstract: The present disclosure provides a battery box, a battery pack with the battery box, and a vehicle. The battery box includes a metal frame. Multiple accommodating cavities for accommodating cells are formed in the metal frame. An inner surface of the accommodating cavity is provided with an insulation coating. A thickness D of the insulation coating meets:




D
=



V
×
A


p
×
I


.





I represents a test current, V represents a test voltage, and p represents a volume resistivity of the insulation coating; D represents a spraying thickness of the insulation coating; and A represents a total spraying area of the insulation coating.

公开(公告)号：US20240030530A1

公开(公告)日：2024-01-25

申请号：US18373850

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Cheng FANG ,  Congji E ,  Qingbo PENG

IPC: H01M50/204 ,  H01M50/249 ,  H01M50/224 ,  H01M10/617

CPC classification number: H01M50/204 ,  H01M50/249 ,  H01M50/224 ,  H01M10/617

Abstract: A battery pack, includes: an enclosure; a cell disposed in the enclosure; and a distribution box disposed in the enclosure. The enclosure includes a housing and a cover body, a side of the housing including a picking and placing opening, the cover body disposed on the side of the housing to cover the picking and placing opening, the distribution box located in the housing close to the picking and placing opening, and the housing, the cover body, and a metal plate of the distribution box surrounding the cell.

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.

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：US20230082924A1

公开(公告)日：2023-03-16

申请号：US17989608

申请日：2022-11-17

Applicant: BYD COMPANY LIMITED

Inventor： Xiaopeng WANG ,  Qingbo PENG ,  Zhipei LU ,  Jianhua ZHU ,  Yan ZHU

IPC: H01M50/112 ,  H01M50/242 ,  H01M50/383 ,  H01M10/6551 ,  B60L50/64 ,  H01M50/249

Abstract: A battery pack housing includes a housing body, the housing body includes multiple connected sub-housings, and at least one reinforcing plate is disposed in at least one of the sub-housings. Each of the sub-housings includes a top plate and a bottom plate arranged opposite to each other in a first direction, the first direction is a height direction of the housing, the at least one reinforcing plate is located between a top plate and a bottom plate, the at least one reinforcing plate is connected to the top plate and the bottom plate, and the at least one reinforcing plate divides an interior of the at least one of the sub-housings into multiple accommodating cavities. A mounting portion is provided on the housing and is configured to be connected and fixed to an external load.