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：US20240106034A1

公开(公告)日：2024-03-28

申请号：US18529925

申请日：2023-12-05

Applicant: BYD COMPANY LIMITED

Inventor： Shu GUO

IPC: H01M10/66 ,  B60L53/302 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6568

CPC classification number: H01M10/66 ,  B60L53/302 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6568

Abstract: A battery pack charging system includes a charging base disposed at a charging station and electrically connected to a battery pack to charge the battery pack when the battery pack is placed on the charging base; and a cooling structure disposed on the charging base and configured to cool the battery pack.

公开(公告)号：US20240030513A1

公开(公告)日：2024-01-25

申请号：US18475602

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Shu GUO ,  Qingbo PENG

IPC: H01M10/6554 ,  H01M10/6568 ,  H01M10/613

CPC classification number: H01M10/6554 ,  H01M10/6568 ,  H01M10/613

Abstract: A battery cold plate includes two external interfaces, two convergence pipelines, and multiple branches. The two external interfaces are respectively in communication with the middle positions of the two convergence pipelines, so that the flow path of cooling liquid in the convergence pipeline is enabled to be half of the length of the convergence pipeline. The multiple branches are arranged side by side, and both ends of each of the branches are respectively in communication with the two convergence pipelines through multiple throttling ports. The total cross-sectional area of multiple throttling ports in a branch close to the external interface is less than the total cross-sectional area of multiple throttling ports in a branch away from the external interface, the cross-sectional areas of various sub-branches are the same.

公开(公告)号：US20240123860A1

公开(公告)日：2024-04-18

申请号：US18398647

申请日：2023-12-28

Applicant: BYD COMPANY LIMITED

Inventor： Shu GUO

IPC: B60L53/80

CPC classification number: B60L53/80

Abstract: A charging and swapping system for a detachable battery pack includes a battery pack and a support plate. The battery pack includes a housing and a battery cell disposed in the housing. The support plate is connected with the battery pack through a detachable connection. The support plate is disconnected from the battery pack when the battery pack is to be replaced on a vehicle or when charging of the battery pack at a charging station is completed.