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US 12,355,334 B2Granted
Switch module for a power tool
AssigneeBlack & Decker Inc.
InventorMatthew J. Velderman
Life of this patent
Estimating the term…
Abstract
An electronic switch module for a power tool is provided including a module body, a trigger moveable relative to the module body, a magnet being moveable relative to the module body with the trigger along a movement axis, and a linear Hall sensor fixed relative to the module body and intersecting the movement axis of the magnet. The linear Hall sensor magnetically detects a linear position of the magnet along the movement axis and outputs a voltage signal based on the detected linear position.
Claims12
A power tool comprising:
- a main body supporting a motor rotatably driving a rotor shaft;
- a handle portion;
- and
- an electronic switch module supported by the handle, the electronic switch module comprising:
- a module body;
- a trigger moveable relative to the module body;
- a magnet being moveable relative to the module body along a movement axis;
- a spring disposed between the trigger and the magnet to bias the magnet along the movement axis with the movement of the trigger;
- and
- a linear Hall sensor fixed relative to the module body and intersecting the movement axis of the magnet, the linear Hall sensor magnetically detecting a linear position of the magnet along the movement axis and outputting a voltage signal based on the detected linear position.
7 more elements
A power tool comprising:
- a main body supporting a motor rotatably driving a rotor shaft;
- a handle portion;
- and
- an electronic switch module supported by the handle, the electronic switch module comprising:
- a module body;
- a trigger moveable relative to the module body;
- a first magnet being moveable relative to the module body with the trigger along a first movement axis;
- a second magnet being moveable relative to the module body with the trigger along a second movement axis parallel to the first movement axis;
- a spring disposed between the trigger and the first magnet to bias the magnet along the first movement axis with the movement of the trigger;
- a first Hall sensor fixed relative to the module body and intersecting the first movement axis of the magnet to detect a linear position of the first magnet along the first movement axis, the linear Hall sensor outputting a voltage signal based on the linear position of the first magnet;
- and
- a second Hall sensor fixed relative to the module body to detect a movement of the second magnet between a first position, in which the trigger is in in a released position, and a second position, in which the trigger is in a pressed position, and output a signal associated with an ON/OFF state accordingly.
9 more elements
A power tool comprising:
- a main body supporting a motor rotatably driving a rotor shaft;
- a handle portion;
- and
- an electronic switch module supported by the handle, the electronic switch module comprising:
- a module body;
- a trigger moveable relative to the module body;
- a magnet oriented along a first axis when the trigger is in a released position, but is rotated so as to be oriented along a second axis substantially perpendicular to the first axis when the trigger is a pressed state;
- and
- a Hall sensor fixed relative to the module body, wherein the Hall sensor does not magnetically sense the magnet when the magnet is oriented along the first axis, but magnetically senses the magnet when the magnet is oriented along the second axis and outputs a signal associated with an ON/OFF state accordingly.
6 more elements
Dependencies are inferred from the claim text.