Battery cell holder, battery module, battery and electrical apparatus

Patent metadata

Field	Value
Publication number	US-2023131069-A1
Application number	US-202217975514-A
Country	US
Kind code	A1
Filing date	Oct 27, 2022
Priority date	Oct 22, 2021
Publication date	Apr 27, 2023
Grant date	—

Abstract

The present application discloses a battery cell holder, a battery module, a battery, and an electrical apparatus. The battery cell holder includes: a holder body and an insulating member. The holder body is provided with at least one first channel in a first direction, and the insulating member is arranged on an outer surface of the holder body. The insulating member covers part or all of the outer surface, and the surface of the insulating member facing away from the holder body is capable of fixing a battery cell. By providing the holder body with the first channel, and fixing the battery cell to the holder body on the peripheral side of the first channel, after the battery cell radiates heat, the heat flows out through the first channel, so that the temperatures of the battery cell itself and the environment surrounding the battery cell can be reduced, thereby alleviating the battery safety problem caused by the accumulation of heat during the use of the battery.

First claim

What is claimed is:

1 . A battery cell holder, comprising:
a holder body provided with at least one first channel in a first direction; and an insulating member arranged on an outer surface of the holder body, wherein the insulating member covers part or all of the outer surface, and the surface of the insulating member facing away from the holder body is capable of fixing a battery cell.

2 . The battery cell holder according to claim 1 , wherein
the outer surface of the holder body is provided with a connecting portion around the first direction, the surface of the connecting portion facing away from the holder body is a connecting surface recessed to form at least one accommodating recess, and an inner wall of the accommodating recess has a shape adapted to that of a partial surface of the battery cell; and the insulating member is arranged on the surface of the connecting portion facing away from the holder body.

3 . The battery cell holder according to claim 2 , wherein
the accommodating recess is in the shape of an elongated strip in the first direction, and the accommodating recess is in the shape of a recessed arc surface around the first direction; and/or the connecting portion is provided with a plurality of accommodating recesses evenly distributed on the connecting surface of the connecting portion.

4 . The battery cell holder according to claim 2 , wherein the connecting portion is a heat conducting member.

5 . The battery cell holder according to claim 2 , wherein
the connecting portion is integrally formed with the holder body.

6 . The battery cell holder according to claim 2 , wherein
a second channel extending in the first direction is provided between the connecting portion and the holder body.

7 . The battery cell holder according to claim 2 , wherein
the connecting portion has a first end face and a second end face opposite to each other in the first direction, the first end face is connected to the second end face via the connecting surface, and two ends of the connecting portion are respectively provided with a first snap-fit through hole and a second snap-fit through hole, wherein the first snap-fit through hole communicates the first end face with the connecting surface, and the second snap-fit through hole communicates the second end face with the connecting surface.

8 . The battery cell holder according to claim 2 , wherein
the insulating member comprises a first insulating strip and a second insulating strip, wherein the first insulating strip is arranged in a circle around the connecting surface on the peripheral side of the connecting portion, the second insulating strip is arranged in a circle around the connecting surface on the peripheral side of the connecting portion, and the second insulating strip and the first insulating strip are spaced apart from each other.

9 . The battery cell holder according to claim 8 , wherein
the surface of the first insulating strip facing away from the connecting portion is recessed to form a first fixing recess adapted in shape to a partial surface of the battery cell, and the surface of the second insulating strip facing away from the connecting portion is recessed to form a second fixing recess adapted in shape to a partial surface of the battery cell.

10 . The battery cell holder according to claim 8 , wherein
the two ends of the connecting portion in the first direction are respectively provided with a first snap-fit portion, the first insulating strip is provided with a second snap-fit portion, the second insulating strip is provided with a third snap-fit portion, and the second snap-fit portion and the third snap-fit portion are respectively snap-fitted with the first snap-fit portions at the two ends of the connecting portion.

11 . The battery cell holder according to claim 10 , wherein
the first snap-fit portions are snap-fit through holes; and the second snap-fit portion and the third snap-fit portion are both snap-fit posts, and a free end of each snap-fit post is provided with a hooking portion.

12 . The battery cell holder according to claim 11 , wherein
the free end of each snap-fit post is provided with a notch to form a first sub-end and a second sub-end opposite each other, a first sub-hooking portion and a second sub-hooking portion respectively protrude from the surfaces of the first sub-end and the second sub-end facing away from each other, and when the snap-fit post extends into a respective snap-fit through hole, the first sub-hooking portion and the second sub-hooking portion are exposed and respectively hooked to an outer edge of the snap-fit through hole.

13 . The battery cell holder according to claim 10 , wherein
a first snap-fit post of the second snap-fit portion extends into an opening of the first snap-fit through hole on the first end face side and out of an opening on the other side of the first snap-fit through hole, and a first hooking portion on the first snap-fit post of the second snap-fit portion extends out of the opening on the other side of the first snap-fit through hole and is snap-fitted with the edge at this opening, so as to snap-fit the second snap-fit portion with the first snap-fit through hole on the first end face side.

14 . The battery cell holder according to claim 10 , wherein
a second snap-fit post of the third snap-fit portion extends into an opening of the second snap-fit through hole on the second end face side and out of an opening on the other side of the second snap-fit through hole, and a second hooking portion on the second snap-fit post of the third snap-fit portion extends out of the opening on the other side of the second snap-fit through hole and is snap-fitted with the edge at this opening, so as to snap-fit the third snap-fit portion with the second snap-fit through hole on the second end face side.

15 . The battery cell holder according to claim 1 , wherein the holder body is a heat conducting member.

16 . The battery cell holder according to claim 1 , wherein
two ends of the holder body in the first direction are respectively provided with a first flange and a second flange, wherein the first flange is provided with a first connecting structure, and the second flange is provided with a second connecting structure.

17 . A battery module, comprising:
a battery cell and the battery cell holder of claim 1 , wherein the battery cell is connected to the surface of the insulating member of the battery cell holder facing away from the holder body.

18 . A battery, comprising:
the battery module of claim 17 .

19 . The battery according to claim 18 , wherein
the battery module is accommodated in a box body.

20 . An electrical apparatus, comprising:
the battery of claim 18 .

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Ke Qingpeng
• Pan Xin
• Huang Zhijie

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/572

  Means for preventing undesired use or discharge · CPC title

• H01M50/293

  characterised by the material · CPC title

• H01M50/24

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/291 Primary

  characterised by their shape · CPC title