BATTERY MODULE HAVING HOLDER

• US 20150086834A1
• Filed: 08/21/2014
• Published: 03/26/2015
• Est. Priority Date: 09/23/2013
• Status: Active Grant

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: CHO, Man-Sik
• Granted Patent: US 9,917,290 B2
• Time in Patent Office: Days
• US Class Current: 429/121
• CPC Class Codes: H01M 50/505 comprising a single busbar
• CPC Class Codes: H01M 50/516 by welding, soldering or brazing
• CPC Class Codes: H01M 50/595 Tapes
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery module according to an exemplary embodiment of the present invention includes a plurality of rechargeable batteries having a terminal, a holder combined to end portions of the rechargeable batteries and having a first fastening portion, and a bus bar combined to the terminal, electrically connecting the rechargeable batteries, and having a second fastening portion to be fitted into the first fastening portion.

Claims

1. A battery module comprising:

a plurality of rechargeable batteries having a terminal and edge portions;

a holder connected to the edge portions of the rechargeable batteries and having a first fastening portion; and

a bus bar bonded to the terminal, electrically connecting the rechargeable batteries, and having a second fastening portion to be connected with the first fastening portion.

2. The battery module of claim 1, wherein the first fastening portion is fitted into the second fastening portion.

3. The battery module of claim 2, wherein the first fastening portion is formed with a supporting protrusion formed in the holder, and the second fastening portion is formed in the bus bar and provided with a supporting hole to be fitted into the supporting protrusion.

4. The battery module of claim 2, wherein the first fastening portion is provided with a supporting groove formed in the holder, and the second fastening portion is formed in the bus bar and provided with a supporting protrusion to be fitted into the supporting groove.

5. The battery module of claim 2, wherein a protecting member covering the bus bar is provided on the bus bar, and the bus bar is disposed between the protecting member and the holder.

6. The battery module of claim 5, wherein the protecting member is formed with a third fastening portion to be fitted into the first fastening portion.

7. The battery module of claim 5, wherein the protecting member is formed of tape attached to the bus bar.

8. The battery module of claim 2, wherein the first fastening portion is formed with a supporting rib protruding from the holder, and the second fastening portion is formed in the bus bar and provided with a cutout portion to be fitted into the supporting rib.

9. The battery module of claim 2, wherein the holder is formed with a first hole into which an end portion of one rechargeable battery is inserted, a second hole into which an end portion of another rechargeable battery neighboring the first one is inserted, and an upper plate partially covering the first and second hole.

10. The battery module of claim 9, wherein the first fastening portion is formed in the upper plate.

11. The battery module of claim 10, wherein the upper plate is provided with a mounting groove connected to the first and second holes.

12. The battery module of claim 11, wherein the bus bar includes first and second connection portions and a connecting portion disposed between the first and second connection portions, and the mounting groove is inserted with the first and second connection portions and the connecting portion.

13. The battery module of claim 12, wherein two first connection portions disposed apart from each other are formed to be connected at one end portion of the connecting portion, two second connection portions disposed apart from each other are formed to be connected to the opposite end of the connecting portion such that the two first connection portions are welded to one rechargeable battery, and the two second connection portions are welded to another rechargeable battery neighboring the first one.

14. The battery module of claim 12, wherein the bus bar includes first supporting portions protruding from the first connection portions, formed in a curved shape, and contacting the upper plate, and the first supporting portion is provided with the second fastening portion.

15. The battery module of claim 12, wherein the bus bar includes second supporting portions protruding from the second connection portions, formed in a curved shape, and contacting the upper plate, and the second supporting portion is provided with the second fastening portion.

16. The battery module of claim 12, wherein the first and second connection portions are formed with bonding protrusions protruding towards the rechargeable battery and being welded thereto.

17. A battery module comprising:

a plurality of rechargeable batteries having a first cross-sectional shape and having an end that includes a terminal;

a holder having an inner and outer surface wherein the holder defines a plurality of openings that respectively receive the end of the plurality of batteries, wherein the ends of the batteries are exposed through the opening and wherein the holder includes a first alignment component formed on the outer surface;

a bus bar that is bonded to the first end of the batteries through the opening in the holder, wherein the bus bar has a second alignment component that mates with the first alignment component so as to position the bus bar adjacent the terminals of the plurality of batteries.

18. The battery module of claim 17, wherein the first alignment terminal and second alignment terminals are complementary to each other and are either male or female.

19. The battery module of claim 17, further comprising a protecting member that is positioned on an outer side of the bus bar, wherein the protection member includes a third alignment component that mates with the first alignment component to retain the protection member on the bus bar.

20. The battery module of claim 19, wherein the protecting member comprises tape positioned on the bus bar.