Electric power tool
AssigneeBasso Industry Corp.
InventorsCheng-En TSAI, Chong-Kun HONG
Life of this patent
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Abstract
An electric power tool includes a power supply supplying electricity, a driving unit driving operation of the electric power tool, an operation unit to be operated by a user, main and redundant sensing units detecting the power supply, the driving unit and the operation unit, and a control unit including primary and secondary controllers that respectively make first and second determinations according to the detection made by the main and redundant sensing units. The control unit controls the driving unit to operate in a normal mode when both of the first and second determinations indicate that at least one of the power supply, the driving unit and the operation unit operates normally.
Claims16
An electric power tool, comprising:
- a housing;
- a power supply accommodated in said housing, and configured to supply electricity;
- a driving unit accommodated in said housing, electrically connected to said power supply, and configured to drive operation of said electric power tool based on the electricity from said power supply;
- an operation unit disposed on said housing, and configured to be operated by a user for using said electric power tool;
- a main sensing unit accommodated in said housing, and configured to detect said power supply, said driving unit and said operation unit;
- a redundant sensing unit accommodated in said housing, and configured to detect at least one of said power supply, said driving unit and said operation unit;
- and
- a control unit electrically connected to said power supply, said driving unit and said operation unit, and including
- a primary controller in communication with said main sensing unit, and configured to make a first determination related to condition of said power supply, said driving unit and said operation unit according to the detection made by said main sensing unit, and
- a secondary controller in communication with said redundant sensing unit, and configured to make a second determination related to condition of at least one of said power supply, said driving unit and said operation unit according to the detection made by said redundant sensing unit,
- wherein said control unit is configured to control said driving unit to operate in a normal mode where said driving unit enables said electric power tool to function normally when both of the first determination and the second determination indicate that said at least one of said power supply, said driving unit and said operation unit operates normally.
Dependencies are inferred from the claim text.