公开(公告)号：US20230238591A1

公开(公告)日：2023-07-27

申请号：US17928560

申请日：2020-11-19

Applicant: BYD COMPANY LIMITED

Inventor： Junlong WANG ,  Liming LAO ,  Liang WANG ,  Penghui XUE ,  Mingwen CHEN

IPC: H01M10/44 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02J7/00

CPC classification number: H01M10/44 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H02J7/007 ,  H02J7/0024 ,  H01M2220/20

Abstract: A battery energy processing device includes: first and second inductors, first and second phase bridge arms, an energy storage element, and a controller. First ends of the first and second inductors are connected with a positive electrode of a battery. A midpoint of the first phase bridge arm is connected with a second end of the first inductor; A midpoint of the second phase bridge arm is connected with a second end of the second inductor. A first end of the energy storage element is connected with a first confluent end; a second end of the energy storage element is connected with a second confluent end. The controller is configured to control the first and second phase bridge arms to charge and discharge the battery through the first and second inductors to heat the battery. The first and second inductors are in different operating states.

公开(公告)号：US20240239219A1

公开(公告)日：2024-07-18

申请号：US18620963

申请日：2024-03-28

Applicant: BYD COMPANY LIMITED

Inventor： Penghui XUE ,  Junlong WANG ,  Leping ZHENG ,  Liang WANG ,  Mingwen CHEN

IPC: B60L53/22 ,  B60L53/53 ,  B60L53/62 ,  B60L53/66

CPC classification number: B60L53/22 ,  B60L53/53 ,  B60L53/62 ,  B60L53/66 ,  B60L2210/12 ,  B60L2210/14

Abstract: An energy conversion apparatus includes: a first inductor, a first end of the first inductor being connected to a first output end of a battery module; a second inductor, a first end of the second inductor being connected to the first end of the first inductor; a second switch, connected between the first end of the second inductor and a first end of a charging and discharging port; a first two-way H-bridge, one end of the first two-way H-bridge being connected to a second output end of the battery module and a second end of the charging and discharging port, the first two-way H-bridge including a first bridge arm and a second bridge arm that are connected in parallel; and a third switch, connected between the first end of the first inductor and the first end of the charging and discharging port.

公开(公告)号：US20240092197A1

公开(公告)日：2024-03-21

申请号：US18521133

申请日：2023-11-28

Applicant: BYD COMPANY LIMITED

Inventor： Tuodi HUANG ,  Penghui XUE ,  Zunjie LI ,  Fen LIU ,  Chao LIU

IPC: B60L53/16 ,  H02J7/00

CPC classification number: B60L53/16 ,  H02J7/0042

Abstract: A distributor includes: an outer housing; a direct current charging interface, an electronic control terminal interface, and a battery terminal interface disposed in the outer housing. A first contactor and a second contactor are connected between the electronic control terminal interface and the battery terminal interface. A third contactor and a pre-charge resistor form a pre-charge branch. A fourth contactor is connected between the direct current charging interface and the battery terminal interface; a fifth contactor is connected between a negative terminal of the direct current charging interface and a negative terminal of the battery terminal interface; and the five contactors and a pre-charge resistor are disposed in the outer housing.