Weldless battery pack with wiping contacts

• US 5,326,651 A
• Filed: 11/03/1992
• Issued: 07/05/1994
• Est. Priority Date: 11/03/1992
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Mehta, Alay M., Bresin, Mark S.
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US07/970,884
• Time in Patent Office: 609 Days
• Field of Search: 429/96-100, 429/121-123, 307/150, 439/500, 206/333
• US Class Current: 429/96
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/271 Lids or covers for the racks or secondary casings
• CPC Class Codes: H01M 50/291 characterised by their shape
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery pack (10), comprises at least one cell (16) having a positive (15) and a negative terminal (17), and a header (18) for mounting the cell. The header has at least one wiping contact (20) for connection to either the positive or negative terminal of the cell or cells. The battery pack further comprises a first housing member (30) for receiving the header and the cell or cells, a second housing member (12) mounted above the header and coupled to the first housing member, and a scheme for wiping the wiping contact while the cell (or cells) is enclosed within the first and second housing members.

Claims

1. A battery pack, comprising:

at least one cell having a positive and a negative terminal;

a header for mounting said at least one cell, the header having at least one wiping contact for connection to either the positive or negative terminal of the cell or cells;

a first housing member for receiving the header and the cell or cells;

a second housing member mounted above the header and coupled to the first housing member;

means for wiping the wiping contact while the at least one cell is enclosed within the first and second housing members.

2. The battery pack of claim 1, wherein the header snaps into the first housing member.

3. The battery pack of claim 1, wherein the first housing member includes a post for alignment with an opening in the header and an opening in the second housing member.

4. The battery pack of claim 1, wherein the second housing member is a laminar label.

5. The battery pack of claim 1, wherein the means for wiping wipes the wiping contact when the battery pack is attached to a portable product.

6. The battery pack of claim 1, wherein the means for wiping comprises a structure allowing the relative motion between the cell terminals and the wiping contacts.

7. A weldless battery pack, comprising:

a plurality of cells mechanically coupled to each other, each cell having a positive and a negative terminal;

a header for mounting the plurality of cells, the header having at least one integrally formed wiping contact for connection to either the positive or negative terminal of the cell or cells;

a first housing member for receiving the header and the plurality of cells;

a second housing member mounted above the header and coupled to the first housing member;

means for wiping the integrally formed wiping contact.

8. The battery pack of claim 7, wherein the header snaps into the first housing member.

9. The battery pack of claim 7, wherein the first housing member includes a post for alignment with an opening in the header and an opening in the second housing member.

10. The battery pack of claim 7, wherein the second housing member is a laminar label.

11. The battery pack of claim 7, wherein the cells are prismatic cells.

12. The battery pack of claim 7, wherein the means for wiping comprises a structure allowing the relative motion between the cell terminals and the wiping contacts.

13. A weldless battery pack, comprising:

a plurality of prismatic cells mechanically coupled to each other, each cell having a positive and a negative terminal;

a header for mounting the plurality of cells, the header having at least one integrally formed wiping contact for connection to either the positive or negative terminal of the cell or cells;

a first housing member for receiving the header and the plurality of cells;

a second housing member mounted above the header and coupled to the first housing member;

means for wiping the integrally formed wiping contact by applying pressure to either the first housing member or second housing member.

14. The battery pack of claim 13, wherein the header snaps into the first housing member.

15. The battery pack of claim 13, wherein the first housing member includes a post for alignment with an opening in the header and an opening in the second housing member.

16. The battery pack of claim 13, wherein the second housing member is a laminar label.

17. The battery pack of claim 13, wherein the cells are prismatic cells.

18. The battery pack of claim 13, wherein the means for wiping comprises a structure allowing the relative motion between the cell terminals and the wiping contacts.