Granted Patent B2

US 12,199,297 · App. 17/502,452 · Granted Jan 14, 2025

Inventors: Renwei Zheng (Ningde, CN); Mu Qian (Ningde, CN); Shaozhen Chen (Ningde, CN); Jihua Yao (Ningde, CN)

Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

H01M50/242H01M50/204H01M50/224H01M50/244H01M50/249H01M50/262H01M50/296H01M2220/20

Abstract

Claims (34)

1. A battery module, comprising:

a unit battery;

an end plate located at an end of the battery module along a length direction, the end plate comprising a matching wall;

an output pole base comprising a mounting part and a matching part which are fixedly connected, wherein the matching part is made of metal material and is fixedly connected to the end plate to limit a freedom degree of movement of the output pole base relative to the end plate along a height direction, a width direction, and the length direction, the matching part comprises a plurality of claws at least partially penetrating into the matching wall, two sides of the matching wall are provided with the plurality of claws along the width direction of the battery module, the matching part further comprises a first connecting plate, two ends of the first connecting plate along the width direction are connected to the plurality of claws located on the two sides of the matching wall, and a hardness of the matching part is different from a hardness of the end plate, to cause the matching part to penetrate into the end plate or a portion of the end plate to penetrate into the matching part.

2. The battery module according to claim 1 , wherein the matching part and the end plate have an interference fit.

3. The battery module according to claim 1 , wherein the matching wall is made of metal material; and the plurality of claws are made of metal material.

4. The battery module according to claim 3 , wherein, along the height direction of the battery module, the plurality of claws are inclined with respect to the matching wall, and an inclination direction is upward.

5. The battery module according to claim 3 , wherein an end of one of the plurality of claws has one or more tips.

6. The battery module according to claim 1 , wherein the mounting part is provided with a mounting groove, the matching part is located in the mounting groove, a side wall of the mounting groove has a clamping groove, a bottom wall of the mounting groove has a first limiting portion, and the clamping groove and the first limiting portion are distributed along the height direction;

along the height direction, an end of the matching part is clamped in the clamping groove, and the other end abuts against the first limiting portion.

7. The battery module according to claim 6 , wherein the side wall of the mounting groove further has a second limiting portion, and the matching part is clamped to the second limiting portion to limit the freedom degree of movement of the matching part along the length direction.

8. The battery module according to claim 6 , wherein the end plate has first matching cavities that are located on both sides of the matching wall along the width direction;

the side wall of the mounting groove is located in the first matching cavity and matches with the first matching cavity.

9. The battery module according to claim 1 , wherein the mounting part further comprises a guide portion, the end plate has a second matching cavity, and the guide portion matches with the second matching cavity.

10. The battery module according to claim 9 , wherein an inner wall of the second matching cavity along the length direction is provided with an end plate boss.

11. The battery module according to claim 9 , wherein along the width direction, the guide portion has a first end and a second end, and size of the second end along the length direction is smaller than that of the first end along the length direction.

12. The battery module according to claim 1 , wherein the mounting part has one or more convex ribs that extend along the height direction; and

a cross section of the convex rib is one or more of a triangle, a diamond and a cone.

13. The battery module according to claim 12 , wherein the mounting part further comprises a bump that is located above the convex rib.

14. A vehicle, comprising a battery module according to claim 1 .

15. A battery module, comprising:

a unit battery;

an end plate located at an end of the battery module along a length direction;

an output pole base comprising a mounting part and a matching part which are fixedly connected, wherein the matching part is made of metal material and is fixedly connected to the end plate to limit a freedom degree of movement of the output pole base relative to the end plate along a height direction, a width direction, and the length direction;

wherein:

the mounting part is provided with a mounting groove, the matching part is located in the mounting groove, a side wall of the mounting groove has a clamping groove, a bottom wall of the mounting groove has a first limiting portion, and the clamping groove and the first limiting portion are distributed along the height direction; and

along the height direction, an end of the matching part is clamped in the clamping groove, and the other end abuts against the first limiting portion.

16. A battery module, comprising:

a unit battery;

an end plate located at an end of the battery module along a length direction;

an output pole base comprising a mounting part and a matching part which are fixedly connected, wherein the matching part is made of metal material and is fixedly connected to the end plate to limit a freedom degree of movement of the output pole base relative to the end plate along a height direction, a width direction, and the length direction;

wherein:

the mounting part has one or more convex ribs that extend along the height direction; and

a cross section of the convex rib is at least one of a triangle, a diamond, or a cone.

Assignments (2)

Priority Claims (1)

Continuity (2)

References Cited (34)