H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 2/10 (2006.01) H01M 10/48 (2006.01) H02J 7/02 (2006.01)
Patent
CA 2539217
In a cordless power tool system, a battery pack which may removably attachable to a cordless power tool and to a charger may include at least one battery cell and a power limiting device. The power limiting device may be arranged in series with the at least one battery cell for limiting power output of the battery pack based on the component that is connected to the pack. Current and hence power out of the battery pack may be controlled as a function of total internal impedance in the battery pack, which may be adjusted depending on the component that is connected to the pack.
L'invention concerne un système d'outil électrique sans fil comprenant un bloc-pile fixé de manière amovible à un outil électrique sans fil et à un chargeur, au moins un élément de batterie et un dispositif de limitation de puissance pouvant être incorporés dans le bloc-pile. Le dispositif de limitation de puissance peut être monté en série avec l'élément de batterie pour limiter la puissance de sortie du bloc-pile en fonction de l'élément relié au bloc-pile. Le courant donc la puissance sortant du bloc-pile peuvent être contrôlés en tant que fonction d'impédance interne totale dans le bloc-pile, laquelle peut être réglée relativement à l'élément relié au bloc-pile.
Bailey R. Roby
Brotto Daniele C.
Carrier David A.
Gorti Bhanuprasad V.
Seman Andrew E. JR.
Black & Decker Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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