Patent ID: 11936248
Assignee: BLACK & DECKER, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
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;
a brushless motor disposed in the tool housing, the brushless motor including
an output shaft operably coupled to drive a tool element,
a stator having an outer diameter of approximately 60 mm to approximately 86 mm, and
a rotor, rotatable with respect to the stator and including a rotor shaft and a plurality of magnets,
wherein a total weight of the motor is in the range of approximately 750 to 1800 grams,

a controller disposed in the tool housing operably connected to the set of tool terminals and to the brushless motor to control power delivery to the brushless motor; and

a battery pack, the battery pack including
a battery pack housing operably connectable to the battery pack receptacle on the tool housing,
a set of battery cells disposed in the battery pack housing, the set of battery cells including at least 15 battery cells each having a nominal voltage of approximately 3.6V and an impedance of approximately ≤13 mΩ, and
a set of battery pack terminals electrically connectable to the set of tool terminals,

wherein the battery pack has a nominal voltage of at least approximately 54V, and the brushless motor is operable under load to output a power of between approximately 3000 W and approximately 5000 W,
wherein the battery pack defines a volume of the battery pack of up to about 1.0×106 mm3.