ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WITH THE SAME
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Accused Products
Abstract
When a battery pack having an output voltage of 14.4 V that is connectable to an electric tool in a sliding manner is used as a power supply source for the electric tool that is connectable to a battery pack in an insertion manner and has a rated voltage of 12 V, the electric tool and the battery pack are connected to each other with an adaptor interposed therebetween. The adaptor has an FET that is switched at a predetermined duty of a predetermined frequency. The battery pack and the electric tool are connected or disconnected to or from each other by the switching operation, thereby dropping the output voltage of the battery pack. When the detected voltage is out of a predetermined value range, it is judged that the overcurrent or overdischarge has occurred. Then, the FET is turned off to stop the electric tool.
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Citations
49 Claims
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1-37. -37. (canceled)
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38. A power unit for an electric tool, the power unit comprising:
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a battery pack; and an adaptor that connects the electric tool and the battery pack, the adaptor including a setting unit configured to set an output voltage to be applied to the electric tool. - View Dependent Claims (39, 40, 41, 42, 43)
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44. A power unit for an electric tool, the power unit comprising:
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a battery unit including a plurality of battery cells; a voltage raising unit configured to raise voltage of the battery unit; and an output terminal from which the raised voltage raised by the voltage raising unit is output. - View Dependent Claims (45, 46)
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47. A power operating machine comprising:
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a battery; a motor configured to be driven by the battery; and a voltage raising unit provided between the battery and the motor and is configured to raise voltage of the battery. - View Dependent Claims (48, 49)
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Specification