Battery terminals

• US 5,382,480 A
• Filed: 02/05/1993
• Issued: 01/17/1995
• Est. Priority Date: 08/07/1990
• Status: Expired due to Fees

• Current Assignee: Silent Power GmbH Fur Energiespeichertechnik
• Original Assignee: Silent Power GmbH Fur Energiespeichertechnik
• Inventors: Molyneux, John
• Primary Examiner(s): KALAFUT, STEPHEN J
• Application Number:
  US07/971,757
• Time in Patent Office: 711 Days
• Field of Search: 429/120, 429/179, 429/183
• US Class Current: 429/120
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/643 Cylindrical cells
• CPC Class Codes: H01M 10/653 characterised by electrically insulating or thermally conductive materials
• CPC Class Codes: H01M 10/654 located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
• CPC Class Codes: H01M 10/6551 Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• CPC Class Codes: H01M 10/6553 Terminals or leads
• CPC Class Codes: H01M 50/296 characterised by terminals of battery packs terminals of batteries H01M50/543
• 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 terminal comprises a thermally and electrically conductive bar. Means are provided to connect one end of the bar to an electrical cable and the other end of the bar to cells of the battery. The bar leads out through a battery casing and heat dissipating means fastened to the battery casing. The heat dissipating means are in good thermal contact with and electrically insulated from the lead out bar.

Claims

1. A battery terminal comprising a thermally and electrically conductive bar having means to connect it at one end to an electrical cable and at its other end to cells of the battery, said bar leading out through a battery casing, and means for dissipating heat fastened to said battery casing in thermal contact with and electrically insulated from said lead out bar, said heat dissipating means including a first collar in thermal contact with said lead out bar and a layer of electrically insulating material located therebetween.

2. A battery terminal as claimed in claim 1 further comprising a second collar located on said lead out bar and fastened to the battery casing so as to retain said first collar in position on the lead out bar.

3. A battery terminal as claimed in claim 1 in which said first collar has a plurality of heat dissipating fins on an external surface thereof.

4. A battery terminal as claimed in claim 1 in which the heat dissipating means further comprises a cap positioned over one of the ends of the lead out bar.

5. A battery terminal as claimed in claim 4 in which the cap is fastened to said first collar.

6. A battery terminal as claimed in claim 3 in which the heat dissipating means further comprises a cap positioned over one of the ends of the lead out bar.

7. A battery terminal as claimed in any one of claims 1, 2-5 and 6 in which said lead out bar is stainless steel.

8. A battery terminal as claimed in any one of claims 2-5 and 6 in which the first collar is of aluminum.

9. A battery terminal as claimed in any one of claims 2-5 and 6 in which the second collar is of copper.

10. A battery terminal as claimed in any one of claims 2-5 and 6 in which the electrically insulating layer is of mica.

11. A battery terminal as claimed in any of claims 4-5 and 6 in which the cap is of aluminum.