Battery having an extended terminal

• US 7,323,846 B2
• Filed: 08/02/2005
• Issued: 01/29/2008
• Est. Priority Date: 07/25/2002
• Status: Expired due to Term

• Current Assignee: Milwaukee Electric Tool Corporation (Techtronic Industries Company Limited)
• Original Assignee: Milwaukee Electric Tool Corporation (Techtronic Industries Company Limited)
• Inventors: Santana, George L. Jr.
• Primary Examiner(s): Tso; Edward H
• Application Number:
  US11/195,482
• Publication Number:
  US 20050264259A1
• Time in Patent Office: 910 Days
• Field of Search: 320/107, 320/110, 320/112, 320/114, 320/150, 320/111, 439/101, 439/504, 439/94
• US Class Current: 320/107
• CPC Class Codes: B25F 5/02 Construction of casings, bodies or handles B25F5/006, B25F5/008 take precedence
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/247 specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
• CPC Class Codes: H01M 50/296 characterised by terminals of battery packs terminals of batteries H01M50/543
• CPC Class Codes: H01M 50/581 in response to temperature
• CPC Class Codes: H01M 50/59 characterised by the protection means
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery, a battery charger, an electrical system, and a method of charging a battery. In one aspect, the battery includes a housing, a battery cell supported by the housing, a first terminal electrically connected to the battery cell and having a first terminal end, and a second terminal electrically connected to the battery cell and having a second terminal end, the second terminal end extending forwardly of the first terminal end. In another aspect, the battery charger includes a charger housing, a charging circuit supported by the charger housing and connectable to a power source, a first charger terminal connected to the charging circuit and having a first charger terminal end, the first charger terminal being connectable to the first battery terminal, and a second charger terminal connected to the charging circuit and having a second charger terminal end, the second charger terminal being connectable to the second battery terminal, the second charger terminal end extending forwardly of the first charger terminal end.

Claims

1. A battery comprising:

a housing;

a battery cell supported by the housing, the battery cell having a positive terminal and a ground terminal;

a first terminal electrically connected to the positive terminal and having a first terminal end; and

a second terminal electrically connected to the ground terminal and having a second terminal end configured to connect to a corresponding terminal of a battery charger before the first terminal end connects to a corresponding terminal of the battery charger.

2. The battery as set forth in claim 1, further comprising a third terminal electrically connected to the battery cell and having a third terminal end.

3. The battery as set forth in claim 2, wherein the second terminal end extends forwardly of the third terminal end.

4. The battery as set forth in claim 3, wherein the second terminal end extends forwardly of the first terminal end.

5. The battery as set forth in claim 2, further comprising a temperature monitoring device electrically connected to the third terminal.

6. The battery as set forth in claim 5, wherein the temperature monitoring device is a thermistor.

7. The battery as set forth in claim 1, wherein the battery cell is a NiMH battery cell.

8. The battery as set forth in claim 1, wherein the battery cell is a NiCd battery cell.

9. The battery as set forth in claim 1, wherein the battery cell is a Li-ion battery cell.

10. A battery comprising:

a housing;

a battery cell supported by the housing, the battery cell having a positive terminal and a ground terminal;

a first battery terminal electrically connected to the positive terminal and extending along a first axis, the first battery terminal including a first terminal end in a first plane perpendicular to the first axis; and

a second battery terminal electrically connected to the ground terminal and extending along a second axis, the second battery terminal including a second terminal end in a second plane perpendicular to the second axis, a gap being defined between the first plane and the second plane, the gap ensuring the second terminal end connects to a battery charger before the first terminal end connects to the battery charger.

11. The battery as set forth in claim 10, further comprising a third battery terminal electrically connected to the battery cell and having a third terminal end.

12. The battery as set forth in claim 11, wherein the third battery terminal extends along a third axis, the third terminal end in a third plane perpendicular to the third axis, a gap being defined between the third plane and one of the first plane and the second plane.

13. The battery as set forth in claim 11, further comprising a temperature monitoring device electrically connected to the third battery terminal.

14. A battery comprising:

a housing;

a battery cell supported by the housing, the battery cell having a positive terminal and a ground terminal;

a first terminal electrically connected to the positive terminal and having a first terminal end; and

a second terminal electrically connected to the ground terminal and having a second terminal end, the second terminal end extending a distance beyond the first terminal end to couple the second terminal end to a battery charger before the first terminal end is coupled to the battery charger.

15. The battery as set forth in claim 14, further comprising a third terminal electrically connected to the battery cell and having a third terminal end.

16. The battery as set forth in claim 15, wherein the second terminal end extends a distance forwardly of the third terminal end.

17. The battery as set forth in claim 15, further comprising a temperature monitoring device electrically connected to the third terminal.