公开(公告)号：US20230307794A1

公开(公告)日：2023-09-28

申请号：US18319888

申请日：2023-05-18

Applicant: BYD COMPANY LIMITED

Inventor： Zhe ZHAO ,  Naishu TAO ,  Qingbo PENG

IPC: H01M50/503 ,  H01M50/583 ,  H01M50/51 ,  H01M50/581 ,  H01M10/42

CPC classification number: H01M50/503 ,  H01M10/425 ,  H01M50/51 ,  H01M50/581 ,  H01M50/583 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A smart connection sheet includes a conductive connection member and a cut-off apparatus. An end of the conductive connection member is adapted to connect to a terminal of a battery core of a battery pack, and another end of the conductive connection member is adapted to connect to a terminal of an adj acent battery core of the battery pack, to implement a series connection between the two adjacent battery cores in the battery pack. When receiving a cut-off signal, the cut-off apparatus cuts off the conductive connection member, to disconnect the two battery cores connected to the conductive connection member.

公开(公告)号：US20230268560A1

公开(公告)日：2023-08-24

申请号：US18310782

申请日：2023-05-02

Applicant: BYD COMPANY LIMITED

Inventor： Peng LU ,  Qingbo PENG ,  Weixin ZHENG

IPC: H01M10/42 ,  H01M10/44 ,  H01M10/46

CPC classification number: H01M10/4228 ,  H01M10/44 ,  H01M10/46

Abstract: A battery pack includes a controller, a battery core, a liquid leakage detector, and a pre-charge switch. The liquid leakage detector is connected with the controller, and the liquid leakage detector is configured to send a liquid leakage signal to the controller when detecting that liquid leakage occurs in the battery core. The controller is configured to prohibit sending a pre-charge on signal to the pre-charge switch upon receiving the liquid leakage signal while receiving a start signal for starting the battery core. The pre-charge switch is configured to prohibit connection of the pre-charge voltage end and the power output end when not receiving the pre-charge on signal, to prohibit the battery core from outputting a pre-charge voltage through the power output end.

公开(公告)号：US20230080969A1

公开(公告)日：2023-03-16

申请号：US17989585

申请日：2022-11-17

Applicant: BYD COMPANY LIMITED

Inventor： Huajun SUN ,  Xiaopeng WANG ,  Qingbo PENG ,  Zhipeng LU ,  Yan ZHU

IPC: H01M50/207 ,  H01M50/112 ,  H01M50/291 ,  H01M50/244 ,  H01M50/531 ,  H01M50/588 ,  H01M50/591 ,  H01M50/174 ,  H01M50/548 ,  H01M50/51 ,  H01M50/512 ,  H01M50/474 ,  H01M50/477 ,  H01M50/342 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6567 ,  H01M50/249 ,  B60L50/64

Abstract: A battery pack includes a housing and multiple electrode core strings electrically connected to each other and disposed in the housing. The housing includes a housing body which includes sub-housings connected to each other. A sub-housing includes at least one reinforcing plate and a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between and is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity includes at least one electrode core string which includes electrode core assemblies connected and arranged in a second direction. The electrode core assemblies are disposed in an encapsulation film. A length of the electrode core string extends in the second direction. The housing includes a mounting component that is configured to be connected and fixed to an external load.

公开(公告)号：US20230055300A1

公开(公告)日：2023-02-23

申请号：US17797370

申请日：2021-02-04

Applicant: BYD COMPANY LIMITED

Inventor： Huajun SUN ,  Qingbo PENG ,  Shichao HU ,  Yan ZHU ,  Xin GAO

IPC: B60L50/64 ,  B60L50/60 ,  H01M50/119 ,  H01M50/548 ,  H01M50/209 ,  H01M50/249

Abstract: A battery pack and a vehicle are provided. The battery pack is fixed to the vehicle and is configured to provide electric energy for the vehicle. The battery pack includes a cell array. The cell array includes at least one cell. The cell includes electrode terminals for leading out current. A first direction is defined as a front-to-rear direction of the vehicle. The electrode terminals are oriented parallel to the first direction.

公开(公告)号：US20230042566A1

公开(公告)日：2023-02-09

申请号：US17972099

申请日：2022-10-24

Applicant: BYD COMPANY LIMITED

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

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

Abstract: The present disclosure provides a battery pack housing, a battery pack, and an electric vehicle. The battery pack housing includes a housing body and at least one structural beam disposed in the housing body. The at least one structural beam divides the internal space of the housing body into a number of accommodation cavities. The housing body 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 battery pack housing, and the structural beam is located between and attached to the top plate and the bottom plate. The battery pack housing comprises a mounting part for connecting mounting portion for a fixed connection with an external load. The battery pack housing disclosed in the present disclosure has relatively high strength and stiffness as well as high space utilization.

公开(公告)号：US20230041540A1

公开(公告)日：2023-02-09

申请号：US17971901

申请日：2022-10-24

Applicant: BYD COMPANY LIMITED

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

IPC: H01M50/291 ,  H01M50/211 ,  H01M50/271 ,  H01M50/509 ,  H01M50/242 ,  H01M50/224 ,  H01M50/178 ,  H01M50/548 ,  H01M50/503 ,  B60L50/64

Abstract: A battery pack includes a 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 is connected to the top plate and the bottom plate, and divides the interior of the housing into multiple accommodating cavities, and at least one electrode core string is provided in at least one accommodating cavity. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series.

公开(公告)号：US20240030513A1

公开(公告)日：2024-01-25

申请号：US18475602

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Shu GUO ,  Qingbo PENG

IPC: H01M10/6554 ,  H01M10/6568 ,  H01M10/613

CPC classification number: H01M10/6554 ,  H01M10/6568 ,  H01M10/613

Abstract: A battery cold plate includes two external interfaces, two convergence pipelines, and multiple branches. The two external interfaces are respectively in communication with the middle positions of the two convergence pipelines, so that the flow path of cooling liquid in the convergence pipeline is enabled to be half of the length of the convergence pipeline. The multiple branches are arranged side by side, and both ends of each of the branches are respectively in communication with the two convergence pipelines through multiple throttling ports. The total cross-sectional area of multiple throttling ports in a branch close to the external interface is less than the total cross-sectional area of multiple throttling ports in a branch away from the external interface, the cross-sectional areas of various sub-branches are the same.

公开(公告)号：US20240021912A1

公开(公告)日：2024-01-18

申请号：US18373794

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Bojun XIONG ,  Qingbo PENG ,  Ning YI

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6568 ,  H01M50/271 ,  H01M50/242 ,  H01M10/615 ,  H01M10/657 ,  H01M50/249

CPC classification number: H01M10/6556 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6568 ,  H01M50/271 ,  H01M50/242 ,  H01M10/615 ,  H01M10/657 ,  H01M50/249 ,  H01M2220/20 ,  B60R16/033

Abstract: A battery pack includes: a battery box having a distribution cavity; a distribution box disposed in the distribution cavity; the distribution box including a panel; the panel having a first flow channel and a refrigerant inlet/outlet joint in communication with the first flow channel; and a thermoregulation member connected with the battery box; the thermoregulation member having a second flow channel in communication with the first flow channel.

公开(公告)号：US20240021861A1

公开(公告)日：2024-01-18

申请号：US18475769

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Peng LU ,  Qingbo PENG ,  Zhipei LU

IPC: H01M10/04 ,  H01M50/233 ,  H01M50/211

CPC classification number: H01M10/049 ,  H01M50/233 ,  H01M50/211 ,  H01M2220/20

Abstract: Provided are a battery pack using a method for assembling a battery pack and a vehicle. The battery pack includes a box and battery modules. The box is provided with cavities inside. The battery module includes foam and multiple cells. The foam is arranged between adjacent cells. The method for assembling a battery pack includes the following steps: the battery module is loaded into an insulating bag; the insulating bag is vacuumized so that the foam is compressed to reduce the volume of the battery module; and after the battery module of the reduced volume is inserted into the cavity, a vacuum state is released and positive and negative electrodes of the battery module are exposed.

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.