Cordless power tool system compatible with multiple battery packs

Patent metadata

Field	Value
Publication number	US-12062806-B2
Application number	US-202217646815-A
Country	US
Kind code	B2
Filing date	Jan 3, 2022
Priority date	Mar 10, 2020
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A power tool system includes a power tool having a tool housing and a load disposed in the tool housing. The tool housing includes a battery pack receptacle having a set of tool terminals. The power tool system includes a set of battery packs. Each battery pack includes a battery pack housing operably connectable to the battery pack receptacle through a battery pack interface disposed on the battery pack housing, a set of battery cells disposed in the battery pack housing, and a set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the set of battery cells. Each battery pack in the set of battery packs has a same nominal voltage and defines a common interface and at least a portion of the set of battery packs defines a total volume in a range of approximately 150 cm 3 to 1300 cm 3 .

First claim

What is claimed is:

1. A power tool system, comprising:
a power tool, the power tool including
a tool housing, the tool housing including a battery pack receptacle, the battery pack receptacle including a set of tool terminals, and
a load disposed in the tool housing; and

a first battery pack, the first battery pack including
a first battery pack housing operably connectable to the battery pack receptacle on the tool housing through a first battery pack interface disposed on the first battery pack housing,
a first set of battery cells disposed in the first battery pack housing, and
a first set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the first set of battery cells, wherein
the first battery pack defines a peak power density greater than 9.5 W/cm 3 , and
the first set of battery cells define a pouch form factor.

2. The power tool system of claim 1 , wherein the first battery pack defines a total volume in a range of approximately 150 cm 3 to approximately 860 cm 3 .

3. The power tool system of claim 1 , wherein the first battery pack defines a nominal voltage of approximately 18 V.

4. The power tool system of claim 1 , further comprising a second battery pack, the second battery pack including
a second battery pack housing operably connectable to the battery pack receptacle on the tool housing through a second battery pack interface disposed on the second battery pack housing,
a second set of battery cells disposed in the second battery pack housing, and
a second set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the second set of battery cells, wherein
the second battery pack defines a peak power density in a range of 6.0 W/cm 3 to 7.9 W/cm 3 , and
the second set of battery cells define a cylindrical form factor.

5. The power tool system of claim 4 , wherein the second battery pack defines a total volume greater than approximately 980 cm 3 .

6. The power tool system of claim 4 , wherein the second battery pack defines a nominal voltage of approximately 18 V.

7. The power tool system of claim 4 , wherein the first battery pack and the second battery pack have a same nominal voltage.

8. The power tool system of claim 4 , wherein the second battery pack is a multi-voltage battery pack.

9. The power tool system of claim 4 , wherein the first battery pack interface and the second battery pack interface define a common interface.

10. The power tool system of claim 9 , wherein the tool housing includes an interface to mate with the common interface.

11. The power tool system of claim 9 , further comprising a battery charger, the battery charger including a charger housing, the charger housing including (a) a battery pack receptacle, the battery pack receptacle including a set of charger terminals, and (b) an interface configured to mate with the common interface, the battery charger configured to charge the first battery pack and the second battery pack.

12. A power tool system, comprising:
a power tool, the power tool including
a tool housing, the tool housing including a battery pack receptacle, the battery pack receptacle including a set of tool terminals, and
a load disposed in the tool housing; and

a first battery pack, the first battery pack including
a first battery pack housing operably connectable to the battery pack receptacle on the tool housing through a first battery pack interface disposed on the first battery pack housing,
a first set of battery cells disposed in the first battery pack housing, and
a first set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the first set of battery cells, wherein
the first battery pack defines a peak power density greater than 9.5 W/cm 3 ,
the first battery pack defines a total volume in a range of approximately 150 cm 3 to approximately 860 cm 3 ,
the first battery pack defines a nominal voltage of approximately 18 V, and
the first set of battery cells define a pouch form factor.

13. The power tool system of claim 12 , further comprising a second battery pack, the second battery pack including
a second battery pack housing operably connectable to the battery pack receptacle on the tool housing through a second battery pack interface disposed on the second battery pack housing,
a second set of battery cells disposed in the second battery pack housing, and
a second set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the second set of battery cells, wherein
the second battery pack defines a peak power density in a range of 6.0 W/cm 3 to 7.9 W/cm 3 , and
the second set of battery cells define a cylindrical form factor.

14. The power tool system of claim 13 , wherein the second battery pack defines a total volume greater than approximately 980 cm 3 .

15. The power tool system of claim 13 , wherein the second battery pack defines a nominal voltage of approximately 18 V.

16. The power tool system of claim 13 , wherein the second battery pack is a multi-voltage battery pack.

17. The power tool system of claim 13 , wherein the first battery pack interface and the second battery pack interface define a common interface.

18. The power tool system of claim 17 , wherein the tool housing includes an interface to mate with the common interface.

19. The power tool system of claim 17 , further comprising a battery charger, the battery charger including a charger housing, the charger housing including (a) a battery pack receptacle, the battery pack receptacle including a set of charger terminals, and (b) an interface configured to mate with the common interface, the battery charger configured to charge the first battery pack and the second battery pack.

20. A set of battery packs, comprising:
a first battery pack, the first battery pack including
a first battery pack housing operably connectable to a battery pack receptacle on a tool housing through a first battery pack interface disposed on the first battery pack housing,
a first set of battery cells disposed in the first battery pack housing, and
a first set of battery pack terminals electrically connectable to a set of tool terminals and electrically connected to the first set of battery cells, wherein
the first battery pack defines a peak power density greater than 9.5 W/cm 3 , and
the first set of battery cells define a pouch form factor.

21. The set of battery packs of claim 20 , wherein the first battery pack defines a total volume in a range of approximately 150 cm 3 to approximately 860 cm 3 .

22. The set of battery packs of claim 20 , wherein the first battery pack defines a nominal voltage of approximately 18 V.

23. The set of battery packs of claim 20 , further comprising a second battery pack, the second battery pack including
a second battery pack housing operably connectable to the battery pack receptacle on the tool housing through a second battery pack interface disposed on the second battery pack housing,
a second set of battery cells disposed in the second battery pack housing, and
a second set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the second set of battery cells, wherein
the second battery pack defines a peak power density in a range of 6.0 W/cm 3 to 7.9 W/cm 3 , and
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Assignees

• Black & Decker Inc

Inventors

• Varipatis Michael
• Hennesy Timothy J
• Armacost Craig Aaron

Classifications

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• B25F5/00 Primary

  Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• H01M50/247

  specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers · CPC title