B23B45/02

Brushless DC motor configuration for a power tool

A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB.

Brushless DC motor configuration for a power tool

A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB.

MACHINE TOOL, IN PARTICULAR CORDLESS DRILL OR CORDLESS SCREWDRIVER
20220048119 · 2022-02-17 · ·

Handheld power tool having a housing with a machining axis along which a tool is or can be arranged, and having a lighting device that has at least one activatable lamp, the lighting device generating work light within a beam angle with an increased or maximum light intensity in a main emission direction in order to illuminate a work region, and having at least one light sensor for measuring the light intensity, characterized in that the light sensor detects the light intensity of the work light reflected on the work region during operation and generates control signals representing the light intensity, in that an adjustment unit is provided for setting and/or adjusting the work light generated by the lighting device, and in that a control unit is provided which controls the adjustment unit on the basis of the sensor signals during operation.

MACHINE TOOL, IN PARTICULAR CORDLESS DRILL OR CORDLESS SCREWDRIVER
20220048119 · 2022-02-17 · ·

Handheld power tool having a housing with a machining axis along which a tool is or can be arranged, and having a lighting device that has at least one activatable lamp, the lighting device generating work light within a beam angle with an increased or maximum light intensity in a main emission direction in order to illuminate a work region, and having at least one light sensor for measuring the light intensity, characterized in that the light sensor detects the light intensity of the work light reflected on the work region during operation and generates control signals representing the light intensity, in that an adjustment unit is provided for setting and/or adjusting the work light generated by the lighting device, and in that a control unit is provided which controls the adjustment unit on the basis of the sensor signals during operation.

Power tool operation recording and playback

A power tool and method for recording and playing back a motor parameter. The power tool includes housing, a motor, a trigger, a mode selector switch, and a controller. The trigger outputs an activation signal based on a user input. The mode selector switch is configured to receive a user mode selection indicating a recording mode, a normal operating mode, or a playback mode. The controller receives a mode selection signal from the mode selector switch indicating the selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter while the power tool is in the recording mode to generate a recorded motor parameter. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal from the trigger.

Power tool operation recording and playback

A power tool and method for recording and playing back a motor parameter. The power tool includes housing, a motor, a trigger, a mode selector switch, and a controller. The trigger outputs an activation signal based on a user input. The mode selector switch is configured to receive a user mode selection indicating a recording mode, a normal operating mode, or a playback mode. The controller receives a mode selection signal from the mode selector switch indicating the selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter while the power tool is in the recording mode to generate a recorded motor parameter. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal from the trigger.

Handheld machining device, particularly for drilling
09770763 · 2017-09-26 · ·

A handheld machining device (1), particularly for drilling, having a mechanism includes: a first mounting (20), on which a tool holder (2), and a motor (3, 4) arranged to rotate the tool holder (2), are mounted; a second mounting (30); and an element (40) for translatably guiding, between the first mounting (20) and the second mounting (30), a linear actuator (5) enabling the first mounting (20) to be spaced apart from the second mounting (30), and the first mounting (20) to be brought toward the second mounting (30). The motor (3, 4) is electric, and the rotor (4) of the first motor (3, 4) is directly mounted onto the tool holder (2) and is rigidly connected thereto.

Handheld machining device, particularly for drilling
09770763 · 2017-09-26 · ·

A handheld machining device (1), particularly for drilling, having a mechanism includes: a first mounting (20), on which a tool holder (2), and a motor (3, 4) arranged to rotate the tool holder (2), are mounted; a second mounting (30); and an element (40) for translatably guiding, between the first mounting (20) and the second mounting (30), a linear actuator (5) enabling the first mounting (20) to be spaced apart from the second mounting (30), and the first mounting (20) to be brought toward the second mounting (30). The motor (3, 4) is electric, and the rotor (4) of the first motor (3, 4) is directly mounted onto the tool holder (2) and is rigidly connected thereto.

Power tool operation recording and playback

A power tool and method for recording and playing back a motor parameter. The power tool includes a housing, a motor, a trigger, and a controller. The trigger outputs an activation signal based on a user input. The controller receives a user mode selection signal indicating a selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter to generate a recorded motor parameter. The recorded motor parameter covers a first time period in which motor is operating in response to depression of the trigger, a second time period in which motor is inactive in response to release of the trigger, and a third time period in which motor is operating in response to another depression of the trigger. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal.

Power tool operation recording and playback

A power tool and method for recording and playing back a motor parameter. The power tool includes a housing, a motor, a trigger, and a controller. The trigger outputs an activation signal based on a user input. The controller receives a user mode selection signal indicating a selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter to generate a recorded motor parameter. The recorded motor parameter covers a first time period in which motor is operating in response to depression of the trigger, a second time period in which motor is inactive in response to release of the trigger, and a third time period in which motor is operating in response to another depression of the trigger. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal.