公开(公告)号：US20240021916A1

公开(公告)日：2024-01-18

申请号：US18475519

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Jianglong TANG ,  Shu GUO ,  Peng LU ,  Xin LI

IPC: H01M10/6568 ,  H01M10/6556 ,  H01M10/651

CPC classification number: H01M10/6568 ,  H01M10/6556 ,  H01M10/651 ,  H01M10/613

Abstract: A power battery has a box. The box includes a tray, a liquid cooling plate, and a cold expansion portion. An accommodating space for accommodating cells is provided in the tray. The liquid cooling plate is connected to the tray at an outer surface of at least one of the top and bottom of the tray. A flow channel through which a cooling liquid flows is defined jointly by the liquid cooling plate and the outer surface of the tray. The cold expansion portion is arranged in the flow channel, and is connected to at least one of the tray and the liquid cooling plate. A liquid-passing cross-sectional area of the flow channel corresponding to an expansion region is reduced when the cold expansion portion expands.

公开(公告)号：US20240018894A1

公开(公告)日：2024-01-18

申请号：US18373233

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Futang ZHU ,  Chunsheng WANG ,  Qiuping HUANG

IPC: F01P7/16 ,  F01P5/10 ,  F01P5/02

CPC classification number: F01P7/165 ,  F01P5/10 ,  F01P5/02 ,  F01P2025/64 ,  F01P2025/13

Abstract: A thermal management and control method includes: determining a total target amount of to-be-dissipated heat of an engine based on a minimum engine fuel consumption lookup table when a current temperature of the engine is greater than or equal to a temperature threshold and an opening degree of the thermostat is greater than or equal to an opening degree threshold; querying a minimum thermal management system power consumption lookup table based on the total target amount of to-be-dissipated heat, an air inlet speed of an air-cooling radiator, and a current ambient temperature, and determining a target rotation speed of a water pump and a target rotation speed of the air-cooling radiator; and controlling a rotation speed of the water pump to be the target rotation speed of the water pump, and controlling a rotation speed of the air-cooling radiator to be the target rotation speed of the air-cooling radiator.

公开(公告)号：US20240018644A1

公开(公告)日：2024-01-18

申请号：US18373842

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Yuebin YU ,  Jinbao XU ,  Xiangwei WANG

IPC: C23C14/34 ,  C23C14/04 ,  C23C14/16 ,  C23C14/58 ,  C23C14/00

CPC classification number: C23C14/34 ,  C23C14/04 ,  C23C14/16 ,  C23C14/5833 ,  C23C14/0015

Abstract: An apparatus includes a substrate, an anodic oxidation layer, and a base layer. The anodic oxidation layer is disposed on a surface of the substrate, and the base layer is disposed on a surface of the anodic oxidation layer. The base layer includes a first base layer and a second base layer stacked on the anodic oxidation layer, and each of the first base layer and the second base layer includes a deposition layer of a first metal. An average grain size of the first base layer is less than an average grain size of the second base layer. The anodic oxidation layer includes a nanopore structure, and gains of the first base layer is at least partially embedded in the nanopore structure of the anodic oxidation layer.

公开(公告)号：US20240017587A1

公开(公告)日：2024-01-18

申请号：US18373959

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Wei JIN ,  Min XU ,  Shibai LI ,  Meijiao YE

IPC: B60H1/00

CPC classification number: B60H1/00485 ,  B60H1/00921 ,  B60H1/00278 ,  B60H2001/00307 ,  B60H2001/00928

Abstract: An integrated valve module includes a base and a valve set disposed on the base and including a first switch valve, a second switch valve, and a first expansion valve. An indoor condenser outlet interface configured to connect with an outlet of an indoor condenser and communicate with an inlet of the first switch valve, an outdoor heat exchanger outlet interface configured to connect with an outlet of an outdoor heat exchanger and communicate with an inlet of a second switch valve, and a battery pack heat exchanger inlet interface configured to connected with a refrigerant inlet of a battery pack heat exchanger and communicate with an outlet of the first expansion valve, are disposed on the base. An outlet of the first switch valve, an inlet of the first expansion valve, and an outlet of the second switch valve communicate with a first flow channel disposed on the base.

公开(公告)号：US11874786B2

公开(公告)日：2024-01-16

申请号：US17428146

申请日：2020-02-14

Applicant: BYD COMPANY LIMITED

Inventor： Jianguo Li

IPC: G06F11/20 ,  G06F13/40 ,  G06F11/22 ,  G06F11/263

CPC classification number: G06F13/4022 ,  G06F11/2033 ,  G06F11/221 ,  G06F11/263

Abstract: This application discloses an automatic switching system and method for a front end processor (FEP). The system includes: at least one external device and a FEP assembly. The FEP assembly is connected to the at least one external device. The FEP assembly provides services upward by using a primary memory, a primary TO manager, a secondary memory, and a secondary TO manager, and is connected downward to the at least one external device by using at least one primary driver and at least one secondary driver. The FEP assembly is configured to use the at least one secondary driver as a new primary driver when there is a fault in a communication link between the at least one primary driver and the at least one external device, to transmit a control instruction to the at least one external device and acquire data from the at least one external device.

公开(公告)号：US11843304B2

公开(公告)日：2023-12-12

申请号：US18110254

申请日：2023-02-15

Applicant: BYD COMPANY LIMITED

Inventor： Guangquan Chen ,  Daqi Chen ,  Longfei Wei ,  Xin Wen

IPC: H02K5/16 ,  H02K7/00 ,  H02K9/19

CPC classification number: H02K5/16 ,  H02K7/003 ,  H02K7/006 ,  H02K9/19

Abstract: An electric assembly includes: a box assembly, a motor, and a transmission. A mounting plate is disposed in the box assembly and divides a space within the box assembly into a motor holding cavity and a transmission holding cavity arranged along an axial direction of a motor shaft. The mounting plate has a shaft via-hole making the motor holding cavity and the transmission holding cavity be in communication. The motor is disposed in the motor holding cavity. The transmission is disposed in the transmission holding cavity. The motor is power-coupled to the transmission. At least one of a surface of the mounting plate facing the motor and a surface of the mounting plate facing the transmission is provided with ribs including strip-shaped ribs extending along a radial direction of the motor. Heights of the strip-shaped ribs decrease from a center portion of the mounting plate to a periphery portion of the mounting plate.

公开(公告)号：US20230395797A1

公开(公告)日：2023-12-07

申请号：US18452239

申请日：2023-08-18

Applicant: BYD COMPANY LIMITED

Inventor： Junfei YOU ,  Jinghua CHEN ,  Chaqing XU ,  Wenyu CAO

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/36 ,  H01M4/505 ,  H01M10/0525

CPC classification number: H01M4/525 ,  C01G53/40 ,  C01G53/50 ,  H01M4/366 ,  H01M4/505 ,  H01M10/0525 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021

Abstract: The disclosure discloses a nickel cobalt lithium manganate cathode material, a preparation method thereof and a lithium ion battery. The nickel cobalt lithium manganate includes a core and an outer layer covering the outside of the core, the core comprises flaky particles, a D50 particle diameter of the flaky particles in the core is 5-10 μm, and a D50 particle diameter of particles in the outer layer is 0.1-4.5 μm.

公开(公告)号：US11824213B2

公开(公告)日：2023-11-21

申请号：US17425914

申请日：2020-01-21

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue Wang ,  Han Cheng ,  Yan Zhu

IPC: H01M50/176 ,  H01M50/15 ,  H01M50/531 ,  H01M50/50

CPC classification number: H01M50/176 ,  H01M50/15 ,  H01M50/50 ,  H01M50/531 ,  H01M2220/20

Abstract: The present application provides a battery unit, a battery module, and a vehicle. The battery unit includes a housing, a cover plate, a first battery post, a second battery post, and an electrode core. The housing is provided with an opening. The cover plate covers the opening. The electrode core is disposed inside the housing. The cover plate includes a cover plate body and a concave cavity portion that is concave inward relative to an outer surface of the cover plate body. The first battery post is accommodated in the concave cavity portion. A first electrode tab of the electrode core is electrically connected to the first battery post. The second battery post is electrically connected to the cover plate body. A second electrode tab of the electrode core is electrically connected to the cover plate body.

公开(公告)号：US11807068B2

公开(公告)日：2023-11-07

申请号：US17416726

申请日：2019-12-18

Applicant: BYD COMPANY LIMITED

Inventor： Wei Huang ,  Yong Xiong ,  Gan Song ,  Yili Luo ,  Penghui Song

IPC: B60H1/32 ,  B60H1/00 ,  B60L58/26 ,  B60W10/08 ,  B60W10/30

CPC classification number: B60H1/00278 ,  B60L58/26 ,  B60W10/08 ,  B60W10/30 ,  B60H2001/00307 ,  B60W2510/087

Abstract: A vehicle and a temperature control device thereof are disclosed. The temperature control device includes a motor control circuit and a heat exchange medium circulation loop. The motor control circuit includes a switch module, a three-phase inverter, a three-phase alternating current motor, and a control module. The heat exchange medium circulation loop includes a first valve electrically connected to the control module. At least one of the three-phase inverter and the three-phase alternating current motor and the first valve form an electrically driven cooling loop through a heat exchange medium pipeline. The first valve and a component to be heated form a cooling loop through a heat exchange medium pipeline.

公开(公告)号：US20230352767A1

公开(公告)日：2023-11-02

申请号：US18347753

申请日：2023-07-06

Applicant: BYD COMPANY LIMITED

Inventor： Jiamao FENG ,  Zhipei LU ,  Huabing XU ,  Huabiao LI

IPC: H01M10/6554 ,  H01M10/6556 ,  H01M10/6568 ,  H01M10/653 ,  H01M10/613 ,  H01M10/625 ,  H01M50/204

CPC classification number: H01M10/6554 ,  H01M10/6556 ,  H01M10/6568 ,  H01M10/653 ,  H01M10/613 ,  H01M10/625 ,  H01M50/204 ,  H01M2220/20

Abstract: A battery pack includes a liquid cooling plate and a battery stack. the battery stack comprises at least one battery module; and the liquid cooling plate comprises a liquid cooling plate body, a liquid inlet, and a liquid outlet. The liquid cooling plate body defines a liquid cooling circuit, the liquid cooling circuit comprises a peripheral liquid inflow channel, an effluent liquid collecting channel, and an intermediate channel communicating between the peripheral liquid inflow channel and the effluent liquid collecting channel. The liquid inlet is connected onto the liquid cooling plate body and communicates with the peripheral liquid inflow channel; and the liquid outlet is connected onto the liquid cooling plate body and communicates with the effluent liquid collecting channel. The peripheral liquid inflow channel encircles an edge of the liquid cooling plate body, and the intermediate channel is at an inner side of the peripheral liquid inflow channel.