Dust collection system for power tool

A dust collection system for a power tool, the system comprising:

• a power tool including
• a switch,
• a tool-body direct current motor,
• a tool-body controller configured to control the tool-body direct current motor in response to an operation on the switch, and
• a tool-body battery;
• and
• a dust collection attachment attachable to the power tool to collect dust produced by the power tool in use, the dust collection attachment including
• a suction portion,
• a dust collector configured to capture dust sucked through the suction portion,
• a fan configured to generate a suction force in the suction portion,
• a dust-collector direct current motor configured to rotate the fan,
• a dust-collector controller configured to control the dust-collector direct current motor, and
• a dust-collector battery,
• wherein when the dust collection attachment is attached to the power tool, the tool-body controller and the dust-collector controller are electrically connected to each other, and
• the tool-body controller or the dust-collector controller uses the tool-body battery singly to supply power to the tool-body direct current motor and the dust-collector direct current motor or uses the dust-collector battery singly to supply power to the tool-body direct current motor and the dust-collector direct current motor,
• wherein the tool-body controller or the dust-collector controller monitors a voltage of the tool-body battery and a voltage of the dust-collector battery, and when one of the tool-body battery or the dust-collector battery singly used to supply power to the tool-body direct current motor and the dust-collector direct current motor has a voltage value being less than or equal to a predetermined value and being a voltage at which the tool-body direct current motor and the dust-collector direct current motor are undrivable, the other of the tool-body battery or the dust-collector battery is singly used to supply power to the tool-body direct current motor and the dust-collector direct current motor.

A dust collection system for a power tool, the system comprising:

• a power tool including
• a switch,
• a tool-body direct current motor,
• a tool-body controller configured to control the tool-body direct current motor in response to an operation on the switch, and
• a tool-body battery;
• and
• a dust collection attachment attachable to the power tool to collect dust produced by the power tool in use, the dust collection attachment including
• a suction portion,
• a dust collector configured to capture dust sucked through the suction portion,
• a fan configured to generate a suction force in the suction portion,
• a dust-collector direct current motor configured to rotate the fan,
• a dust-collector controller configured to control the dust-collector direct current motor, and
• a dust-collector battery,
• wherein when the dust collection attachment is attached to the power tool, the tool-body controller and the dust-collector controller are electrically connected to each other, and
• the tool-body controller or the dust-collector controller uses the tool-body battery singly to supply power to the tool-body direct current motor and the dust-collector direct current motor or uses the dust-collector battery singly to supply power to the tool-body direct current motor and the dust-collector direct current motor, wherein
• the power tool includes a tool-body battery mount to which the tool-body battery is detachably attachable,
• the dust collection attachment includes a dust-collector battery mount to which the dust-collector battery is detachably attachable,
• a structure in which the tool-body battery is attached to and detached from the tool-body battery is the same as a structure in which the dust-collector battery is attached to and detached from the dust-collector battery mount,
• when one of the tool-body battery or the dust-collector battery is unattached to the tool-body battery mount or the dust-collector battery mount, the tool-body controller or the dust-collector controller uses the other of the tool-body battery or the dust-collector battery singly to supply power to the tool-body direct current motor and the dust-collector direct current motor.