公开(公告)号：EP4246655A1

公开(公告)日：2023-09-20

申请号：EP22779023.5

申请日：2022-03-30

Applicant: BYD Company Limited

Inventor： GAO, Jian ,  PENG, Qingbo ,  E, Congji ,  XIONG, Bojun ,  JIANG, Yongjun

IPC: H01M10/42

Abstract: The present disclosure provides a sampling structure, a battery pack, and an electric vehicle. The 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. The collection lines and the battery information collector in the present disclosure are welded through the fuses. The fuses not only can provide connection, but also can provide overcurrent protection.

公开(公告)号：EP4228052A1

公开(公告)日：2023-08-16

申请号：EP21908440.7

申请日：2021-05-08

Applicant: BYD Company Limited

Inventor： LU, Peng ,  PENG, Qingbo ,  ZHENG, Weixin

IPC: H01M10/42 ,  H01M10/48 ,  G01M3/16

Abstract: A battery pack, a method for controlling a battery pack, and a vehicle. The battery pack includes a control module (101), a battery core (102), a liquid leakage detection module (103), and a pre-charge switch module (104). The liquid leakage detection module (103) is connected with the control module (101), and the liquid leakage detection module (103) is configured to send a liquid leakage signal to the control module (101) when detecting that liquid leakage occurs in the battery core (102). The control module (101) is configured to prohibit sending a pre-charge on signal to the pre-charge switch module (104) upon receiving the liquid leakage signal while receiving a start signal for starting the battery core (102). The pre-charge switch module (104) 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 (102) from outputting a pre-charge voltage through the power output end.

公开(公告)号：EP4156390A1

公开(公告)日：2023-03-29

申请号：EP20936324.1

申请日：2020-10-29

Applicant: BYD Company Limited

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

IPC: H01M50/204 ,  H01M50/105

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a housing and multiple electrode core strings electrically connected to each other and arranged in the housing. The housing includes a housing body. The housing body includes multiple sub-housings connected to each other. At least one sub-housing is provided internally with at least one reinforcing plate. Each of the sub-housings includes a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between the top plate and the bottom plate. The at least one reinforcing plate 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 is provided internally with at least one electrode core string. Each of the electrode core strings includes multiple electrode core assemblies sequentially arranged in a second direction and connected in series. The electrode core assemblies are packaged in a packaging film. A length of the electrode core string extends in the second direction. The housing is provided with a mounting component, and the mounting component is configured to be connected and fixed to an external load.

公开(公告)号：EP4109608A1

公开(公告)日：2022-12-28

申请号：EP21756333.7

申请日：2021-02-04

Applicant: BYD Company Limited

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

IPC: H01M10/00 ,  B60L50/60 ,  B60L50/64 ,  B60K1/04

Abstract: A battery pack (200) and a vehicle (300) are provided. The battery pack (200) is fixed to the vehicle (300) and is configured to provide electric energy for the vehicle (300). The battery pack (200) includes a cell array (21). The cell array (21) includes at least one cell (100). The cell (100) includes electrode terminals for leading out current. A first direction (A) is defined as a front-to-rear direction of the vehicle (300). The electrode terminals are oriented parallel to the first direction (A).

公开(公告)号：EP3905377A1

公开(公告)日：2021-11-03

申请号：EP19904418.1

申请日：2019-07-25

Applicant: BYD Company Limited

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

IPC: H01M2/12 ,  H01M2/10

Abstract: The present invention relates to a power battery pack (400) and a vehicle. The power battery pack (400) includes a battery tray (100) and several battery cells (200) disposed on the battery tray (100). Each of the battery cells (200) has a cell anti-explosion valve (201). The battery tray (100) includes a tray body. At least a part of the tray body is formed therein with an air passage. The tray body is provided with several inlet vents (31) and at least one exhaust vent. At least part of the inlet vents (31) and the cell anti-explosion valves (201) are disposed opposite to each other and correspond one-to-one to each other.

公开(公告)号：EP4549867A1

公开(公告)日：2025-05-07

申请号：EP23830368.9

申请日：2023-06-28

Applicant: BYD Company Limited

Inventor： CAI, Yaomin ,  ZHONG, Rijun ,  XIAO, Xiaolin ,  PENG, Qingbo ,  ZHOU, Renyi

IPC: F28F1/40

Abstract: A harmonica-shaped tube, a harmonica-shaped tube type heat exchanger and a vehicle. The harmonica-shaped tube comprises a plurality of flow channels arranged at intervals, wherein inner walls of at least some flow channels are provided with protrusions protruding in the direction approaching the centers of the flow channels and/or recesses recessed in the direction away from the centers of the flow channels. The protrusions and recesses can enable a liquid fluid (refrigerant) to nucleate rapidly, and can also burst large nucleuses which grow in a disorderly manner, thereby preventing the large nucleuses from forming boundary layers on the inner walls of the flow channels, such that nucleuses can be separated from wall surfaces rapidly. Therefore, the heat exchange performance of the harmonica-shaped tube is improved, and the heat exchange requirements of a traction battery are satisfied.

公开(公告)号：EP4517929A1

公开(公告)日：2025-03-05

申请号：EP23795650.3

申请日：2023-04-28

Applicant: BYD Company Limited

Inventor： XIAO, Xiaolin ,  ZHONG, Rijun ,  CAI, Yaomin ,  PENG, Qingbo

IPC: H01M10/613 ,  H01M10/6568 ,  H01M10/617 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6554

Abstract: A vehicle is provided with a battery pack. The battery pack comprises a heat radiator assembly. The heat radiator assembly comprises a first heat radiator, a second heat radiator, a third heat radiator, and at least one fourth heat radiator. The third heat radiator is connected between the first heat radiator and the second heat radiator. The third heat radiator is separately communicated with the first heat radiator and the second heat radiator; the at least one fourth heat radiator is connected between the first heat radiator and the second heat radiator, and the fourth heat radiator is separately communicated with the first heat radiator and the second heat radiator; the at least one fourth heat radiator and the third heat radiator are arranged side by side between the first heat radiator and the second heat radiator; the first heat radiator and the second heat radiator are both stamping plate type heat radiators; and the fourth heat radiator is a harmonica-shaped tube heat radiator.

公开(公告)号：EP4391255A1

公开(公告)日：2024-06-26

申请号：EP22909609.4

申请日：2022-11-18

Applicant: BYD Company Limited

Inventor： GAO, Jian ,  E, Congji ,  ZHAO, Xiaopeng ,  PENG, Qingbo ,  WU, Zhenhan ,  WANG, Chengzhi

IPC: H02B1/24 ,  H01M50/519

CPC classification number: Y02E60/10 ,  B60L3/00 ,  B60L50/64 ,  H01M10/42 ,  H01M10/48 ,  H01M50/249 ,  H01M50/519 ,  H02B1/24 ,  H02J7/00

Abstract: The present disclosure provide a power distribution apparatus, a battery pack, and a vehicle. The power distribution apparatus includes: a base, a high-voltage connection part and a low-voltage connection part being fixed on the base; a high-voltage loop, at least a portion of the high-voltage loop being arranged on the base, the high-voltage loop being electrically connected to the high-voltage connection part, the high-voltage loop having a module positive-electrode connection end and a module negative-electrode connection end, and the high-voltage loop including a main disconnecting switch core fixed on the base; a circuit board, the circuit board being arranged on the base; a low-voltage loop, the low-voltage loop being integrated into the circuit board and being electrically connected to the low-voltage connection part; and a plurality of high-and-low-voltage tabs, an end of each high-and-low-voltage tab being connected to the high-voltage loop for electrical connection, and another end of the high-and-low-voltage tab being plugged into the circuit board for electrical connection with the low-voltage loop. The power distribution apparatus in the embodiments of the present disclosure has advantages such as a simple and compact structure, high space utilization, a small volume, a light weight, and low costs.

公开(公告)号：EP4389495A1

公开(公告)日：2024-06-26

申请号：EP22909614.4

申请日：2022-11-18

Applicant: BYD Company Limited

Inventor： E, Congji ,  GAO, Jian ,  PENG, Qingbo ,  WU, Zhenhan ,  WANG, Chengzhi

IPC: B60L3/00 ,  H02J7/00

CPC classification number: Y02E60/10 ,  B60L3/00 ,  B60L50/64 ,  H01M10/42 ,  H01M10/48 ,  H01M50/249 ,  H01M50/519 ,  H02B1/24 ,  H02J7/00

Abstract: The present disclosure provides a power distribution apparatus, a battery pack, and a vehicle. The power distribution apparatus includes: a base, the base being configured with an interface area, a high-voltage connection part and a low-voltage connection part being fixed in the interface area; a high-voltage loop, at least a portion of the high-voltage loop being arranged on the base, the high-voltage loop overlapping with the high-voltage connection part for electrical connection, the high-voltage loop having a battery positive-electrode connection end and a battery negative-electrode connection end, components connected in the high-voltage loop being electrically connected through overlapping, the high-voltage loop including a main disconnecting switch core, and the main disconnecting switch core being fixed on the base and the main disconnecting switch core and the base jointly forming a first module; a circuit board, the circuit board being arranged on the base; and a low-voltage loop, the low-voltage loop being integrated into the circuit board and the low-voltage loop and the circuit board jointly forming a second module, and the high-voltage loop and the low-voltage connection part being respectively plugged into the circuit board and electrically connected to the low-voltage loop. The power distribution apparatus in the embodiments of the present disclosure has advantages such as a simple and compact structure space utilization, a small volume, a light weight, low costs, versatility and high production efficiency.

公开(公告)号：EP4328070A3

公开(公告)日：2024-05-01

申请号：EP23214634.0

申请日：2020-10-29

Applicant: BYD Company Limited

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

IPC: H01M50/112 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6557 ,  H01M50/10 ,  H01M50/204 ,  H01M50/207 ,  H01M50/209 ,  H01M50/211 ,  H01M50/224 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291 ,  H01M50/358 ,  H01M50/367 ,  B60L50/64

CPC classification number: Y02E60/10 ,  Y02T10/70 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M50/10 ,  H01M50/204 ,  H01M50/211 ,  H01M50/224 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291 ,  H01M50/358 ,  H01M10/6557 ,  H01M50/207 ,  H01M50/209 ,  H01M50/367

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a housing, at least one structural beam located in the housing, 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 at least one 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, the at least one structural beam 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. The multiple electrode core assemblies are encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction.