Die Grinder Front Lighting Layout for Cross-Axis Workpiece Visibility
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Solution Overview
Problem
Existing die grinders lack adequate visibility of a workpiece placed in a direction crossing the drive axis, which hinders effective operation.
Innovation Solution
Incorporation of at least two light emitting parts arranged on the die grinder's circuit substrate in specific quadrants relative to the drive axis, with optional additional light emitting parts below the axis, to enhance illumination and visibility of the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the die grinder operates without additional lighting components, then the device structure remains simple and compact, but the visibility of the workpiece placed in a direction crossing the drive axis is insufficient
Solution Approach 1:
The lighting system is segmented into multiple independent light emitting parts (at least two) positioned at different locations on the circuit substrate. This segmentation allows each light to illuminate specific areas, improving overall workpiece visibility while keeping individual components simple and manageable.
Solution Approach 2:
Light emitting parts are added in a new spatial dimension (on the circuit substrate facing the workpiece area) to solve the illumination problem. This dimensional addition allows lighting functionality to be integrated without significantly increasing the mechanical complexity of the die grinder's core structure.
2Illumination intensity
If light emitting parts are added to improve workpiece visibility, then illumination intensity increases, but user discomfort from excessive light may occur
Solution Approach 1:
Different light emitting parts are positioned at specific locations on the circuit substrate to provide localized illumination to different areas of the workpiece. This local quality approach ensures adequate lighting where needed while avoiding excessive light in other areas that would cause user discomfort.
Solution Approach 2:
The light emitting parts are arranged asymmetrically relative to the drive axis, with specific positioning in upper quadrants and potentially below the axis. This asymmetric arrangement optimizes light distribution to illuminate the workpiece effectively while avoiding direct glare to the user's eyes.
3Illumination intensity
If multiple light emitting parts are arranged in specific quadrants, then light distribution is optimized for workpiece visibility, but the device complexity increases
Solution Approach 1:
The circuit substrate serves multiple functions: it provides electrical connections for the motor and control circuits, and simultaneously serves as the mounting platform for the light emitting parts. This multi-functionality reduces overall device complexity by eliminating the need for separate mounting structures.
Solution Approach 2:
The lighting function is merged with the existing circuit substrate assembly. The light emitting parts are integrated into the circuit substrate structure, combining illumination functionality with the existing electrical component housing, thereby reducing the number of separate parts and simplifying assembly.
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
Improves workpiece visibility by providing enhanced illumination, reducing user discomfort from excessive light, and optimizing light distribution for better operational visibility.
Implementation Method 1
at least two light emitting parts that are assembled on a front surface of the circuit substrate
Data Source
AI summary
A die grinder includes: a motor; a spindle that is rotationally driven around a drive axis that defines a front-rear direction of the die grinder; a housing; and at least two light emitting parts that are assembled on a front surface of a circuit substrate. In directions orthogonal to the drive axis, a direction toward the drive axis from a cross-sectional center of a grip part is defined as a downward direction. When the front surface is divided into four quadrants by a line passing the drive axis in an up-down direction and a line passing the drive axis in a left-right direction orthogonal to the up-down direction, the at least two light emitting parts include at least first and second light emitting parts that are respectively arranged in the upper right quadrant and the upper left quadrant of the four quadrants relative to the drive axis.