公开(公告)号：EP4545897A1

公开(公告)日：2025-04-30

申请号：EP23830372.1

申请日：2023-06-28

Applicant: BYD Company Limited

Inventor： CAI, Yaomin ,  ZHAI, Jian ,  ZHONG, Rijun ,  ZHU, Ruiyuan ,  CHEN, Lu

IPC: F28F3/00

Abstract: A direct cooling plate, a heat exchanger, a power battery pack and a vehicle. The direct cooling plate includes a plurality of heat exchange channels, which are arranged inside the direct cooling plate. Each heat exchange channel includes an inlet for a refrigerant to enter therein and an outlet for the refrigerant to flow out therefrom, wherein the at least one heat exchange channel is circumferentially arranged around the other heat exchange channels; and each heat exchange channel forms a heat exchange unit at the direct cooling plate, and the heat exchange unit is used for performing heat exchange in different temperature regions of a battery. The direct cooling plate can control the temperature of the refrigerant at the inlet of each heat exchange channel aimed at different temperature regions of the battery, such that the overall temperature difference of the battery is improved, and thereby prolonging the service life of the battery.

公开(公告)号：EP4550523A1

公开(公告)日：2025-05-07

申请号：EP23830369.7

申请日：2023-06-28

Applicant: BYD Company Limited

Inventor： ZHONG, Rijun ,  CAI, Yaomin ,  XIAO, Xiaolin ,  ZHU, Ruiyuan ,  GU, Zhengrong

IPC: H01M10/613 ,  H01M10/6556 ,  H01M10/6568

Abstract: A power battery heat exchanger, a power battery system and an electric vehicle. The power battery heat exchanger comprises a connector, a first header assembly and a second header assembly which are arranged separately in a first direction, and a plurality of harmonica tubes arranged between the first header assembly and the second header assembly and separately arranged in a second direction. The first header assembly comprises a first header and a second header, an inlet of the connector is separately in communication with first ends of part of the harmonica tubes by means of the first header, and an outlet of the connector is separately in communication with first ends of the other harmonica tubes by means of the second header. Second ends of the plurality of harmonica tubes are in communication with each other by means of the second header assembly.