公开(公告)号：US20230099141A1

公开(公告)日：2023-03-30

申请号：US17801024

申请日：2021-02-07

Applicant: BYD COMPANY LIMITED

Inventor： Wansong YUAN ,  Xiangda ZOU ,  Dongjun DENG ,  Wenhui CHEN ,  Yan ZHU

IPC: H01M50/618 ,  H01M50/103 ,  H01M50/133 ,  H01M10/658

Abstract: A battery case is provided, including a plurality of side plates. A first side plate has the largest area among the plurality of side plates, and at least one first side plate includes a first portion and a second portion. The first portion is a curved surface concave toward inside of the battery case. A three-dimensional coordinate system is established in a first direction, a second direction, and a third direction, and the second direction is perpendicular to the first side plate. A curvature of the first portion is less than a curvature of an ellipsoid, the curvature of the ellipsoid is obtained from an ellipsoid function, and the ellipsoid function is: ((x−a)/i)2+((y−b)/j)2+((z−c)/k)2=1, where, a, b, c, i, j, and k are determined according to coordinates of at least four points that are different from each other, and x, y, and z are coordinates of the three directions of the ellipsoid function.

公开(公告)号：US20230067415A1

公开(公告)日：2023-03-02

申请号：US17984044

申请日：2022-11-09

Applicant: BYD COMPANY LIMITED

Inventor： Na SONG ,  Liangwen TAN ,  Jing TAN ,  Wenhui CHEN

IPC: B60K1/04 ,  B60L50/64 ,  B60R16/02 ,  H01M50/209 ,  H01M50/249 ,  H01M50/271 ,  H01M50/262 ,  H01M50/298

Abstract: A battery pack housing includes a tray, a middle beam, a cover plate and a mounting member. The tray includes a bottom plate and a plurality of side beams and forms a receiving space for accommodating a battery unit. The receiving space is open at one side. The cover plate is configured to close the open side of the receiving space. The plurality of side beams include two first side beams opposite to each other. The middle beam is in the receiving space and two ends of the middle beam along a length direction are respectively spaced by a predetermined distance from or in contact with the two first side beams.

公开(公告)号：US20230261305A1

公开(公告)日：2023-08-17

申请号：US18141012

申请日：2023-04-28

Applicant: BYD COMPANY LIMITED

Inventor： Liangwen TAN ,  Na SONG ,  Jing TAN ,  Wenhui CHEN

IPC: H01M50/262 ,  H01M50/209 ,  H01M10/6556 ,  B60K1/04

CPC classification number: H01M50/262 ,  H01M50/209 ,  H01M10/6556 ,  B60K1/04 ,  H01M2220/20

Abstract: A battery pack includes: a battery core; a bottom plate, where the bottom plate is disposed under the battery core to support the battery core; a top plate, where the top plate is disposed above the battery core; a mounting beam, where the mounting beam includes a main beam portion and a bottom beam portion, the main beam portion is located between the bottom plate and the top plate, and the bottom beam portion is connected to a lower surface of the main beam portion and disposed under the bottom plate; and a connection assembly, where the connection assembly is configured for mounting the battery pack to a mounting point, and the connection assembly couples with the mounting beam to provide the mounting beam an upward acting force when the battery pack is mounted to the mounting point.

公开(公告)号：US20230112735A1

公开(公告)日：2023-04-13

申请号：US18079335

申请日：2022-12-12

Applicant: BYD COMPANY LIMITED

Inventor： Liangwen TAN ,  Peng LU ,  Na SONG ,  Jing TAN ,  Wenhui CHEN

IPC: B60K1/04 ,  H01M50/204 ,  H01M50/244 ,  H01M10/613 ,  H01M10/6554 ,  H01M10/42

Abstract: A battery pack includes a tray, multiple batteries, a distribution box, and a sealing plate. The tray includes an accommodating space, and the batteries and the distribution box are disposed in the accommodating space. The batteries are electrically connected to the distribution box. The tray includes a bottom plate, an access port in communication with the accommodating space is provided on the bottom plate, and the access port is disposed opposite to the distribution box. The sealing plate covers the access port, and the sealing plate is detachably connected to the bottom plate.

公开(公告)号：US20230198102A1

公开(公告)日：2023-06-22

申请号：US17923419

申请日：2021-03-26

Applicant: BYD COMPANY LIMITED

Inventor： Liangwen TAN ,  Jing TAN ,  Wenhui CHEN

IPC: H01M50/507 ,  H01M50/271 ,  H01M10/6561 ,  H01M10/6556 ,  H01M10/613 ,  H01M50/209 ,  B60L58/26 ,  B60L50/64

CPC classification number: H01M50/507 ,  B60L50/64 ,  B60L58/26 ,  H01M10/613 ,  H01M10/6556 ,  H01M10/6561 ,  H01M50/209 ,  H01M50/271

Abstract: A battery pack (100) is provided, which includes a tray (10), the tray(10) being provided with an accommodating groove(11), and at least one through hole (12) is provided on a side wall of the accommodating groove (11); at least one battery array (20), the at least one battery array (20) being arranged in the accommodating groove (11), each of the at least one battery array (20) including multiple batteries (21) arranged in sequence, and each of the batteries (21) includes an electrode terminal (22) at the side facing the through hole (12); and at least one electrical connector (30), the at least one electrical connector (30) being arranged in the accommodating groove (11) and connected to the electrode terminals (22) of at least two batteries, where the through hole (21) allows the electrode terminals (22) and the electrical connector (30) to be exposed.

公开(公告)号：US20230231223A1

公开(公告)日：2023-07-20

申请号：US18009129

申请日：2021-03-30

Applicant: BYD COMPANY LIMITED

Inventor： Liangwen TAN ,  Jing TAN ,  Wenhui CHEN

IPC: H01M10/6552 ,  H01M50/264 ,  H01M10/6556 ,  H01M10/625

CPC classification number: H01M10/6552 ,  H01M10/625 ,  H01M10/6556 ,  H01M50/264 ,  H01M2220/20

Abstract: A battery pack includes a tray and a vapor chamber. The tray includes two first edge beams, and the two first edge beams are respectively disposed on two opposite sides of a receiving space having a top opening. The vapor chamber is disposed at the top opening of the tray and comprises two opposite first edge portions, and the two first edge portions are respectively mounted on the two first edge beams. One of a first edge beam and a corresponding first edge portion mounted thereon comprises an inner surface that faces the receiving space and includes a clamping slot, and the other one of the first edge beam and the corresponding first edge portion is inserted into the clamping slot.

公开(公告)号：US20230163395A1

公开(公告)日：2023-05-25

申请号：US18078508

申请日：2022-12-09

Applicant: BYD COMPANY LIMITED

Inventor： Liangwen TAN ,  Jing TAN ,  Wenhui CHEN

IPC: H01M50/249 ,  B60L58/26 ,  B60L58/27 ,  H01M10/6555 ,  H01M10/6551

CPC classification number: H01M50/249 ,  B60L58/26 ,  B60L58/27 ,  H01M10/6555 ,  H01M10/6551

Abstract: A battery pack includes a tray and a plate. The tray has an accommodating space. The accommodating space has a top opening. The plate is disposed at the top opening of the accommodating space. The plate includes an inner surface facing the accommodating space and an outer surface opposite to the inner surface. A plurality of cooling pipes sequentially arranged are disposed on the outer surface of the plate. A heating member is disposed between two adjacent cooling pipes.