Fixing structure, battery box, and battery pack

Patent metadata

Field	Value
Publication number	US-11749864-B2
Application number	US-202117918781-A
Country	US
Kind code	B2
Filing date	Jul 23, 2021
Priority date	Jul 24, 2020
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A fixing structure (300) for a battery pack is provided. The battery pack includes a box body (100). The fixing structure (300) is disposed on an outer surface of the box body (100) and includes a first connecting body (301), a second connecting body (302), and a transition body (303). The first connecting body (301) has one end connected with the box body (100). The second connecting body (302) has one end connected with the box body (100). The second connecting body (302) is spaced apart from the first connecting body (301). The transition body (303) has two ends connected with one end of the first connecting body (301) away from the box body (100) and one end of the second connecting body (302) away from the box body (100) respectively.

First claim

What is claimed is:

1. A fixing structure for a battery pack, the battery pack comprising a box body, the fixing structure being disposed on an outer surface of the box body and comprising:
a first connecting body connected with the box body;
a second connecting body connected with the box body, and the second connecting body being spaced apart from the first connecting body; and
a transition body, the transition body has two ends connected with one end of the first connecting body away from the box body and one end of the second connecting body away from the box body respectively;
wherein the second connecting body defines a plurality of connecting holes;
the transition body defines a through hole;
part of the through hole faces the second connecting body in a direction from the first connecting body to the second connecting body; and
the through hole has a first hole segment and a second hole segment connected in sequence, the first hole segment is located at one side of the second hole segment close to the first connecting body, and a width of the second hole segment is greater than a width of the first hole segment;
the transition body has a first connecting part, a bending part, and a second connecting part connected in sequence;
one end of the first connecting part away from the bending part is connected with the one end of the first connecting body away from the box body;
one end of the second connecting part away from the bending part is connected with the one end of the second connecting body away from the box body;
the first connecting part and the second connecting part define an angle therebetween;
the first connecting part faces the second connecting body;
the through hole extends from the first connecting part to the second connecting part through the bending part; and
the angle between the first connecting part and the second connecting part is an obtuse angle.

2. The fixing structure of claim 1 , wherein the fixing structure is integrally formed.

3. The fixing structure of claim 1 , wherein
at least one of the plurality of connecting holes is a threaded hole.

4. The fixing structure of claim 1 , wherein the plurality of connecting holes comprise an unthreaded hole, and the through hole faces the unthreaded hole.

5. The fixing structure of claim 1 , wherein the bending part is in an arc shape.

6. The fixing structure of claim 1 , wherein the second connecting body is perpendicular to the second connecting part.

7. A battery box, comprising:
a box body having an internal cavity; and
a fixing structure fixed on the outer surface of the box body, the battery pack comprising a box body, the fixing structure being for a battery pack and disposed on an outer surface of the box body and comprising:
a first connecting body connected with the box body;
a second connecting body connected with the box body, and the second connecting body being spaced apart from the first connecting body; and
a transition body, the transition body has two ends connected with one end of the first connecting body away from the box body and one end of the second connecting body away from the box body respectively;
wherein the second connecting body defines a plurality of connecting holes;
the transition body defines a through hole;
part of the through hole faces the second connecting body in a direction from the first connecting body to the second connecting body; and
the through hole has a first hole segment and a second hole segment connected in sequence, the first hole segment is located at one side of the second hole segment close to the first connecting body, and a width of the second hole segment is greater than a width of the first hole segment;

the transition body has a first connecting part, a bending part, and a second connecting part connected in sequence;
one end of the first connecting part away from the bending part is connected with the one end of the first connecting body away from the box body;
one end of the second connecting part away from the bending part is connected with the one end of the second connecting body away from the box body;
the first connecting part and the second connecting part define an angle therebetween;
the first connecting part faces the second connecting body;
the through hole extends from the first connecting part to the second connecting part through the bending part; and
the angle between the first connecting part and the second connecting part is an obtuse angle.

8. The battery box of claim 7 , wherein the box body and the fixing structure are integrally formed.

9. The battery box of claim 7 , wherein the fixing structure is integrally formed.

10. The battery box of claim 7 , wherein
at least one of the plurality of connecting holes is a threaded hole.

11. The battery box of claim 7 , wherein the plurality of connecting holes comprise an unthreaded hole, and the through hole faces the unthreaded hole.

12. The battery box of claim 7 , wherein
the transition body has a first connecting part, a bending part, and a second connecting part connected in sequence;
one end of the first connecting part away from the bending part is connected with the one end of the first connecting body away from the box body;
one end of the second connecting part away from the bending part is connected with the one end of the second connecting body away from the box body;
the first connecting part and the second connecting part define an angle therebetween;
the first connecting part faces the second connecting body; and
the through hole extends from the first connecting part to the second connecting part.

13. The battery box of claim 12 , wherein the bending part is in an arc shape.

14. The battery box of claim 12 , wherein the second connecting body is perpendicular to the second connecting part.

15. A battery pack, comprising a battery box, wherein the battery box comprises:
a box body having an internal cavity; and
a fixing structure fixed on the outer surface of the box body, the battery pack comprising a box body, the fixing structure being for a battery pack and disposed on an outer surface of the box body and comprising:
a first connecting body connected with the box body;
a second connecting body connected with the box body, and the second connecting body being spaced apart from the first connecting body; and
a transition body, the transition body has two ends connected with one end of the first connecting body away from the box body and one end of the second connecting body away from the box body respectively;
wherein the second connecting body defines a plurality of connecting holes;
the transition body defines a through hole;
part of the through hole faces the second connecting body in a direction from the first connecting body to the second connecting body; and
the through hole has a first hole segment and a second hole segment connected in sequence, the first hole segment is located at one side of the second hole segment close to the first connecting body, and a width of the second hole segment is greater than a width of the first hole segment;

the transition body has a first connecting part, a bending part, and a second connecting part connected in sequence;
one end of the first connecting part away from the bending part is connected with the one end of the first connecting body away from the box body;
one end of the second connecting part away from the bending part is connected with the one end of the second connecting body away from the box body;
the first connecting part and the second connecting part define an angle there

Assignees

• Shenzhen Hairun New Energy Tech Co Ltd
• Xiamen Hithium Energy Storage Tech Co Ltd

Inventors

• Zhang Wancai
• Feng Junmin

Classifications

• H01M50/262 Primary

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

• H01M50/249

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• H01M2220/20

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

• H01M50/244 Primary

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

• Y02E60/10

  Energy storage using batteries · CPC title