Battery, driving apparatus, and vehicle

Patent metadata

Field	Value
Publication number	US-12157359-B2
Application number	US-202117516510-A
Country	US
Kind code	B2
Filing date	Nov 1, 2021
Priority date	Sep 17, 2019
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

This application relates to a vehicle, a battery, and a driving apparatus, where the battery includes: a first box body; a second box body connected to the first box body; a plurality of battery units accommodated inside an enclosure defined by the first box body and the second box body; and a sealing gasket located between the first box body and the second box body whereby the first box body and the second box body are hermetically connected. The first box body and/or the second box body is provided with a first protruding portion, a side wall of the sealing gasket is provided with a notch portion, and the notch portion runs through the sealing gasket along a thickness direction of the sealing gasket, and the first protruding portion extends into the notch portion so that the first protruding portion fits with the notch portion.

First claim

What is claimed is:

1. A battery, comprising:
a first box body;
a second box body connected to the first box body;
a plurality of battery units accommodated inside an enclosure defined by the first box body and the second box body; and
a sealing gasket located between the first box body and the second box body whereby the first box body and the second box body are hermetically connected; and,
wherein
the first box body and/or the second box body is provided with a first protruding portion, a side wall of the sealing gasket is provided with a notch portion, and the notch portion runs through the sealing gasket along a thickness direction of the sealing gasket, and the first protruding portion extends into the notch portion whereby the first protruding portion fits with the notch portion;
the second box body is located below the first box body;
the first box body comprises a first body portion and a first connecting portion, and the first connecting portion is connected to a periphery of the first body portion;
the second box body comprises a second body portion and a second connecting portion, and the second connecting portion is connected to a periphery of the second body portion;
the first protruding portion is arranged on the second connecting portion;
the sealing gasket is arranged between the first connecting portion and the second connecting portion, and the sealing gasket is connected to the first connecting portion and the second connecting portion;
the first connecting portion comprises a second protruding portion and a recessed portion, and the second protruding portion and the recessed portion are joined and arranged alternately;
the second protruding portion protrudes away from the first protruding portion, and the recessed portion is recessed towards the first protruding portion; and
the second protruding portion is arranged opposite the first protruding portion.

2. The battery according to claim 1 , wherein the sealing gasket, after being compressed, has a second thickness that is equal to a protrusion height of the first protruding portion.

3. The battery according to claim 1 , wherein the first protruding portion is a cylindrical structure; and
the notch portion comprises a first side wall, wherein the first side wall is arc-shaped, and a side wall of the first protruding portion abuts against the first side wall.

4. The battery according to claim 1 , wherein in a length direction of the battery, two ends of the second box body are both provided with first protruding portions, and two ends of the sealing gasket are both provided with notch portions; and/or
in a width direction of the battery, two ends of the second box body are both provided with first protruding portions, and two ends of the sealing gasket are both provided with notch portions.

5. The battery according to claim 1 , wherein the battery further comprises a connecting piece;
the first protruding portion is provided with a first mounting hole, the first box body is provided with a second mounting hole, and the second box body is provided with a third mounting hole; and
the connecting piece runs through the second mounting hole, the first mounting hole, and the third mounting hole to fasten the first box body to the second box body.

6. The battery according to claim 1 , wherein the sealing gasket comprises multiple sealing strips, and the sealing strips are connected to form an annular structure;
the sealing strip comprises an inner wall and a first outer wall that are disposed opposite each other, and the inner wall is located at a side of the first outer wall closer to the plurality of battery units; and
the notch portion is arranged in the first outer wall.

7. The battery according to claim 6 , wherein a distance between the first outer wall and the inner wall is greater than 7 mm.

8. The battery according to claim 1 , wherein the recessed portion comprises a second side wall; and
the second side wall is located at a side of the first outer wall away from the plurality of battery units.

9. A driving apparatus, comprising the battery according to claim 1 .

10. A vehicle, comprising the battery according to claim 1 .

Assignees

• Contemporary Amperex Technology Hong Kong Ltd

Inventors

• You Kaijie
• Chen Xingdi
• Wang Yongguang
• Lu Zequan
• Tang Yu
• Wang Zhichao

Classifications

• B60K2001/0438

  Arrangement under the floor · CPC title

• H01M2220/20

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

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title

• H01M50/264

  for cells or batteries, e.g. straps, tie rods or peripheral frames · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title