Battery device

Patent metadata

Field	Value
Publication number	US-12542318-B2
Application number	US-202217974543-A
Country	US
Kind code	B2
Filing date	Oct 27, 2022
Priority date	Jul 26, 2022
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A battery device includes batteries arranged in a first direction. Each battery includes a top surface, a bottom surface, two first side surfaces, and two second side surfaces. The first side surfaces are perpendicular to and spaced apart in the first direction. The second side surfaces are parallel to the first direction and spaced apart in a second direction perpendicular to the first direction. Each battery has a flange structure arranged along at least one of the top surface, the bottom surface, and the second side surfaces. The battery device further includes brackets in contact with at least one of the top surface, the bottom surface, and the second side surfaces. The height of each bracket is greater than or equal to the height of the flange structure. At least a part of each bracket is located between at least a part of the flange structures of adjacent batteries.

First claim

What is claimed is:

1 . A battery device, comprising a plurality of batteries arranged in a first direction, wherein a surface of a casing of each battery includes a top surface, a bottom surface, two first side surfaces, and two second side surfaces, the two first side surfaces are perpendicular to the first direction and are spaced apart in the first direction, the two second side surfaces are parallel to the first direction and are spaced apart in a second direction, the second direction is perpendicular to the first direction, each battery has a flange structure arranged along at least one of the top surface, the bottom surface, and the two second side surfaces, and the flange structure extends from the casing and along a plane parallel to the two first side surfaces;
the battery device further comprising brackets, each bracket is in contact with at least one of the top surface, the bottom surface, and the two second side surfaces of a respective one of the batteries, a height of each bracket is greater than or equal to a height of the flange structure, and at least a part of each bracket is located between at least a part of the flange structures of two adjacent batteries of the plurality of batteries, wherein each bracket is provided with a hollow structure for exposing a part of the surface of a respective one of the batteries, wherein the hollow structure is disposed on a part of each bracket in contact with the top surface of a respective one of the batteries to expose a part of the top surface of the respective one of the batteries, wherein:
the battery device further comprises an upper cover plate, the upper cover plate is located on a top part of the brackets, and the upper cover plate is adhesively bonded to the batteries; or
the battery device further comprises a reinforcing plate, the reinforcing plate is located on the top part of the brackets, and the reinforcing plate is adhesively bonded to the batteries; or
the battery device further comprises an upper cover plate and a reinforcing plate that are integrally formed, the upper cover plate and the reinforcing plate are located on the top part of the brackets, and the upper cover plate and the reinforcing plate are adhesively bonded to the batteries,
wherein each bracket is provided with an accommodating structure, and the accommodating structure is configured to accommodate the flange structure, wherein an area of each first side surface is greater than an area of each second side surface, wherein each bracket is in contact with the surface of one or more of the batteries, each bracket comprises at least two parts, and the at least two parts are spliced and connected, wherein the at least two parts of each bracket comprises two first parts and two second parts, the two first parts are respectively in contact with the top surface and the bottom surface of the battery, and the two second parts are respectively in contact with the two second side surfaces of the battery, wherein each second part comprises a first sub-part and two second sub-parts that are integrally formed, the first sub-part is in contact with one of the second side surfaces of the battery, the two second sub-parts are respectively in contact with the top surface and the bottom surface of the battery, and are respectively spliced and connected to the two first parts, and wherein a junction of each of the second sub-parts and a respective one of the first parts has a staggered lap structure.

2 . The battery device according to claim 1 , wherein each bracket is in contact with the surface of a respective one of the batteries, and the bracket is an integral structure.

3 . The battery device according to claim 1 , wherein each first part comprises a plurality of third sub-parts, and the third sub-parts are sequentially arranged in the second direction and are sequentially spliced and connected.

4 . The battery device according to claim 1 , wherein the at least two parts of each bracket comprise a third part and a fourth part, the third part is in contact with at least one of the top surface, the bottom surface, and the two second side surfaces of the battery, and the fourth part is in contact with remaining parts of the top surface, the bottom surface, and the two second side surfaces of the battery.

5 . The battery device according to claim 4 , wherein the third part has a C-shaped structure, and the fourth part has a C-shaped structure.

6 . The battery device according to claim 5 , wherein a shape of the third part and a shape of the fourth part are symmetrical.

7 . The battery device according to claim 5 , wherein the third part and the fourth part are oppositely arranged up and down.

8 . The battery device according to claim 7 , wherein:
the battery device further comprising an upper cover plate, the upper cover plate is located above the batteries, and the upper cover plate and the third part are an integral structure; and/or the battery device further comprising a liquid cooling plate, the liquid cooling plate is located below the batteries, and the liquid cooling plate and the fourth part are an integral structure.

9 . The battery device according to claim 1 , wherein junctions of different parts of each bracket have a staggered lap structure.

10 . The battery device according to claim 9 , wherein staggered lap portions of the different parts of each bracket have an engaging structure comprising a buckle and a slot.

11 . The battery device according to claim 1 , wherein each bracket comprises a fifth part and a sixth part, the fifth part is in contact with three of the top surface, the bottom surface, and the two second side surfaces of the battery, the sixth part is in contact with a remaining one of the top surface, the bottom surface, and the two second side surfaces of the battery, and the fifth part is pivotally connected to the sixth part, such that the sixth part forms a portal structure.

12 . The battery device according to claim 11 , wherein the sixth part is in plurality, the fifth part is in contact with the surfaces of the plurality of batteries, and the sixth parts are respectively in contact with the surface of at least one of the batteries.

13 . The battery device according to claim 1 , comprising a plurality of the brackets, wherein each of the brackets is in contact with the surface of at least one of the batteries, and the brackets are arranged in the first direction and are detachably connected in sequence.

14 . The battery device according to claim 1 , wherein the hollow structure is disposed on a part of each bracket in contact with the bottom surface of a respective one of the batteries to expose a part of the bottom surface of a respective one of the batteries, wherein:
the battery device further comprising a bottom plate, the bottom plate is located on a bottom part of the brackets, and the bottom plate is adhesively bonded to the batteries; or the battery device further comprising a liquid cooling plate, the liquid cooling plate is located on a bottom part of the brackets, and the liquid cooling plate is adhesively bonded to the batteries.

15 . The battery device according to claim 1 , wherein:
a surface on one side of each bracket facing a respective one of the batteries is provided with a through groove, and the through groove communicates with the hollow structure and an outside; and/or a surface on one side of each bracket away from a respective one of the batteries is provided with a through groove, and the through groove communicates with the hollow structure and the outside.

16 . The bat

Assignees

• Calb Co Ltd

Inventors

• Guan Junshan
• Zhang Yongjie
• Gu Liangjie
• Xu Jiuling

Classifications

• H01M10/653

  characterised by electrically insulating or thermally conductive materials · CPC title

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M10/6554

  Rods or plates · CPC title

• H01M50/14 Primary

  for protecting against damage caused by external factors · CPC title