Battery pack and cap lamp system

• US 9,362,762 B2
• Filed: 09/09/2014
• Issued: 06/07/2016
• Est. Priority Date: 01/12/2007
• Status: Active Grant

• Current Assignee: Koehler Bright Star LLC (Berkshire Hathaway Incorporated)
• Original Assignee: Koehler Bright Star LLC (Berkshire Hathaway Incorporated)
• Inventors: Bobbin, Joseph, Dirsa, Mark
• Primary Examiner(s): Muralidar, Richard V
• Application Number:
  US14/481,579
• Publication Number:
  US 20150054463A1
• Time in Patent Office: 637 Days
• Field of Search: 320/107, 320/112, 320/128, 320134-136, 362/105, 362/106, 362/194, 362/195
• US Class Current: 1/1
• CPC Class Codes: F21V 21/084 Head fittings
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H02J 7/0029 with safety or protection devices or circuits
• CPC Class Codes: H02J 7/00304 Overcurrent protection
• CPC Class Codes: H02J 7/00306 Overdischarge protection
• CPC Class Codes: H02J 7/00308 Overvoltage protection
• CPC Class Codes: H02J 7/0031 using battery or load disconnect circuits H02J9/002 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A cap lamp system includes a battery pack featuring a housing with a battery cell and a protection circuit positioned within the battery pack housing. A pair of terminals are attached to the battery cell and are adapted to provide power to a cap lamp and/or other device(s). Circuitry is electrically attached to the battery cell and the cap lamp for controlling discharging of the battery cell when powering the cap lamp and/or other device(s) and charging of the battery cell when the battery pack is connected to a charger.

Claims

1. A cap lamp system comprising:

a. a battery pack housing;

b. a battery cell having a lithium-based chemistry positioned in the battery pack housing;

c. a load attached to the battery cell, said load including a cap lamp;

d. a cap lamp housing, said load positioned within the cap lamp housing;

e. an electronic control module integrated into the load and electrically attached to the cap lamp;

f. a protection circuit electrically attached between said battery cell and the electronic control module and positioned in the battery pack housing; and

g. said electronic control module controlling discharging of the battery cell when powering the cap lamp and charging of the battery cell when the battery pack is connected to a charger.

2. The cap lamp system of claim 1 wherein said cap lamp housing is directly connected to the battery pack housing.

3. The cap lamp system of claim 1 further comprising a cord attached to the battery cell and the load to provide power from the battery cell to the load.

4. The cap lamp system of claim 1 wherein the battery cell is a Lithium-ion cell.

5. The cap lamp system of claim 1 wherein the electronic control module includes a transistor that is used to control discharging of the battery cell.

6. A cap lamp system comprising:

a. a battery pack housing;

b. a battery cell having a lithium-based chemistry positioned within said battery pack housing and having a pair of terminals;

c. an electronic control module;

d. a protection circuit electrically attached between the pair of terminals of said battery cell and the electronic control module and positioned within the battery pack housing;

e. a cap lamp attached to electronic control module; and

f. said electronic control module controlling discharging of the battery cell when powering the cap lamp and charging of the battery cell when the battery pack is connected to a charger.

7. The cap lamp system of claim 6 wherein said cap lamp is directly connected to the battery pack housing.

8. The cap lamp system of claim 6 further comprising a cord attached to the battery cell and the cap lamp to provide power from the battery cell to the cap lamp.

9. The cap lamp system of claim 6 wherein the battery cell is a Lithium-ion cell.

10. The cap lamp system of claim 6 wherein the electronic control module includes a transistor that is used to control discharging of the battery cell.

11. The cap lamp system of claim 6 wherein the electronic control module is incorporated into the cap lamp.

12. The cap lamp system of claim 6 wherein the electronic control module is positioned within the battery pack housing.