Rotary Hammer Ring Light Layout for Shadowless Illumination
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Solution Overview
Problem
Handheld power tools with shadowless lighting face challenges in managing the wiring for multiple LEDs due to limited space, which affects visibility and operational efficiency.
Innovation Solution
A rotary hammer design with a light holder featuring a ring portion and extending arm that houses multiple LEDs around the output device, with power wires routed within the channel formed by protrusions, efficiently managing wiring and ensuring even lighting without shadows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple LEDs are positioned radially around the output device to create shadowless lighting, then illumination quality is improved, but device complexity increases due to additional wiring requirements
Solution Approach 1:
Multiple LEDs are positioned radially around the output device and electrically connected in parallel to share common power and control signals, merging the wiring into a simplified configuration that provides shadowless lighting without requiring separate wiring for each LED
Solution Approach 2:
The lighting assembly is designed to provide both illumination and shadow elimination through multiple radially positioned LEDs that share common electrical connections, allowing a single wiring structure to serve multiple functional purposes
2Illumination intensity
If multiple LEDs are mounted on the front surface to provide shadowless lighting, then visibility is improved, but space requirements increase due to wiring and component placement
Solution Approach 1:
Multiple LEDs are positioned radially around the output device and electrically connected in parallel to share common power and control signals, merging the wiring into a simplified configuration that provides shadowless lighting without requiring separate wiring for each LED
Solution Approach 2:
The LEDs are arranged in a radial pattern around the output device, utilizing the circumferential dimension to distribute light sources evenly without requiring additional axial or radial depth, thus providing comprehensive illumination within limited space
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 solution provides effective shadowless illumination by evenly distributing light around the output device, enhancing visibility and reducing wiring complexity within the handheld power tool.
Implementation Method 1
a plurality of light sources distributed around an output axis of the rotary hammer
Data Source
AI summary
A rotary hammer includes a housing including a motor housing and a secondary housing. The rotary hammer includes an output device configured to provide a rotational output, an axial hammering output, or both the rotational output and the axial hammering output. The rotary hammer also includes a transmission mechanism situated within the secondary housing. The rotary hammer also includes a light holder with a plurality of light sources distributed around an output axis of the rotary hammer. The light holder includes a ring portion mounted to a front surface of the secondary housing. The light holder also includes an extending arm that extends downward and away from the ring portion in a channel of the secondary housing. The rotary hammer includes lighting power wires that are located within the channel and that are covered by the extending arm.