Power tool

A power tool comprising:

• a working component configured to rotate around a working axis;
• a motor arranged on the working axis on a rear side of the working component and configured to drive an output shaft to rotate;
• a transmission arranged on the working axis between the motor and the working component, configured to connect the output shaft of the motor with the working component;
• a main housing configured to at least partially enclose the motor and the transmission, the main housing having a long axis parallel to the working axis, wherein the working component is at least partially enclosed at a front end of the main housing;
• and
• a speed switch at least partially enclosed within the main housing and configured to slide between a first position corresponding to a first speed mode and a second position corresponding to a second speed mode;
• wherein the speed switch comprises:
• an internal structure having at least one permanent magnet mounted thereon;
• a slider arranged to extend from the internal structure to protrude from the main housing for actuation by a user;
• and
• a control board arranged adjacent to the internal structure and comprising a Hall sensor mounted thereon in a position which is aligned with the permanent magnet,
• wherein when the speed switch is in the first position, the permanent magnet is urged adjacent to the Hall sensor with a sensor signal generated, and when the speed switch is in the second position, the permanent magnet is urged away from the Hall sensor with no sensor signal generated.

A power tool comprising:

• a working component configured to rotate around a working axis and configured to operate in a drill mode or a hammer mode;
• a motor arranged on the working axis on a rear side of the working component and configured to drive an output shaft to rotate;
• a transmission arranged on the working axis between the motor and the working component, configured to connect the output shaft of the motor with the working component;
• a main housing configured to at least partially enclose the motor and the transmission, the main housing having a long axis parallel to the working axis, wherein the working component is at least partially enclosed at a front end of the main housing;
• a handle housing extending from the main housing in a direction away from the working axis, the handle housing comprises a terminal housing arranged at an end of the handle housing distal from the main housing, the terminal housing configured to at least partially enclose a control board and a battery terminal;
• a trigger control arranged to protrude from a front side of the handle housing, the trigger control configured to send a signal for controlling the motor;
• and
• a user interface panel arranged to mount on the terminal housing adjacent to the control board, the user interface panel configured to provide user interface for selection of at least two operation modes, the at least two operation modes include a drill mode and a hammer mode.

A power tool comprising:

• a working component configured to rotate around a working axis;
• a motor arranged on the working axis on a rear side of the working component and configured to drive an output shaft to rotate;
• a transmission arranged on the working axis between the motor and the working component, configured to connect the output shaft of the motor with the working component;
• a main housing configured to at least partially enclose the motor and the transmission, the main housing having a long axis parallel to the working axis, wherein the working component is at least partially enclosed at a front end of the main housing;
• a handle housing extending from the main housing in a direction away from the working axis;
• a trigger control arranged to protrude from a front side of the handle housing, the trigger control configured to generate at least a first signal corresponding to a linear position of the trigger control;
• and
• a controller configured to:
• determine whether the trigger control is in a rest position or an actuated position;
• and
• transmit a PWM control signal to activate the motor in response to determining that the trigger control is in an actuated position;
• wherein the PWM control signal includes a duty ratio which corresponds to the linear position of the trigger control.