Power Tool Light Array for Mode and Status Feedback
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Solution Overview
Problem
Existing power tools lack effective means to indicate operational status and mode changes to the operator, which can lead to inefficiencies and potential errors in tool operations.
Innovation Solution
A power tool system that includes a housing, a motor, a trigger assembly, a light array with multiple color LEDs, and an electronic controller. The controller detects trigger actuation and de-actuation, controlling the motor and light array to indicate tool modes and operation success with different color lights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If no light array is provided, then the device complexity is reduced, but the operator cannot effectively detect operational status and mode changes
Solution Approach 1:
The patent applies color changes by using a light array with multiple LEDs that emit different colors (e.g., green, yellow, red) to indicate various operational statuses and mode changes. This provides clear visual feedback to the operator without requiring complex display interfaces or additional sensors, thus resolving the contradiction between information delivery and device complexity.
2Difficulty of detecting and measuring
If a light array with multiple colors is added, then operational status detection is improved, but the device complexity increases
Solution Approach 1:
The light array serves as an intermediary element that translates complex operational data from the motor and controller into simple, intuitive color signals visible to the operator. This mediator approach enables effective status detection without requiring the operator to interpret complex technical parameters, while keeping the overall system architecture relatively simple.
3Productivity
If visual feedback is provided through light array, then tool operation efficiency is improved, but energy consumption increases
Solution Approach 1:
The light array operates periodically or event-driven rather than continuously, activating only when operational status changes occur or when needed for feedback. This periodic operation mode provides necessary visual feedback to improve operator efficiency while minimizing energy consumption compared to continuous illumination.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides clear visual feedback to the operator through the light array, enhancing tool operation efficiency and reducing errors by indicating tool modes and operation outcomes effectively.
Implementation Method 1
a light array supported by the housing and including a plurality of illuminating elements configured to output light in a plurality of colors
Data Source
AI summary
A power tool including a housing, a motor, a trigger assembly including a trigger, a light array, and an electronic controller. The electronic controller is configured to detect actuation of the trigger; in response to detecting actuation of the trigger, control the motor to perform a tool operation according to a first mode of a plurality of tool modes of the power tool and control the light array to output a first color light indicative of the first mode for a duration of the tool operation; detect de-actuation of the trigger; and in response to detecting de-actuation of the trigger, control the light array to output a second color light that is different from the first color light and indicative of whether the tool operation was successful.