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公开(公告)号：EP4328072A2
公开(公告)日：2024-02-28
申请号：EP23214637.3
申请日：2020-10-29
Applicant: BYD Company Limited
Inventor： SUN, Huajun , LU, Zhipei , PENG, Qingbo , WAN, Long , ZHU, Yan
IPC: B60L50/64
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.
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公开(公告)号：EP4328071A2
公开(公告)日：2024-02-28
申请号：EP23214636.5
申请日：2020-10-29
Applicant: BYD Company Limited
Inventor： SUN, Huajun , LU, Zhipei , PENG, Qingbo , WAN, Long , ZHU, Yan
IPC: B60L50/64
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.
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公开(公告)号：EP4254628A1
公开(公告)日：2023-10-04
申请号：EP22779022.7
申请日：2022-03-30
Applicant: BYD Company Limited
Inventor： GAO, Jian , PENG, Qingbo , E, Congji , XIONG, Bojun , JIANG, Yongjun
IPC: H01M50/244 , H01M50/147
Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a box, a sealing cover, a battery string, a sampling structure, and a battery information collector configured to be connected with a battery management system. The battery string and the sampling structure are arranged inside the box. The battery string includes multiple electrically connected batteries. The sampling structure includes multiple sampling lines. First ends of the sampling lines are connected with the corresponding batteries. Second ends of the sampling lines are connected with the battery information collector. The box is provided with an opening. The battery information collector is arranged at the opening of the box. The sealing cover is located on an outer side of the battery information collector. The sealing cover is configured to seal the opening of the box. Since the battery information collector in the present disclosure is arranged at the opening of the box, the internal space of the box is not occupied. Through the sealing cover, both the sealing of the box and the sealing of the battery information collector can be realized. In this way, the production costs can be reduced.
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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.
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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
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.
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Patent Agency Ranking
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.
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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
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).
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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
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.
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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.
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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.
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