LED Lighting Socket Rib for Heat Sink Safety
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Solution Overview
Problem
Conventional lighting devices with LED light sources do not have a structure to prevent hands from approaching the heat sink during optical-axis adjustment, posing a safety concern.
Innovation Solution
A lighting device design featuring a socket with a rib protruding rearward of the heat sink, positioned between the hand and the heat sink, to deter hand contact with the heat sink during adjustment, along with radiator fins that are less likely to be touched, enhancing safety and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the knob is placed adjacent to the heat sink for direct manual operation, then the ease of operation is improved, but the safety is worsened due to risk of hand contact with the heat sink
Solution Approach 1:
The patent introduces a rib structure as an intermediary element between the hand and the heat sink. The rib protrudes from the socket and serves as a protective barrier that prevents direct contact between the operator's hand and the heat sink during knob operation, thereby resolving the safety issue while maintaining ease of operation.
Solution Approach 2:
The socket is segmented into functional zones: the rib portion that provides safety protection, the portion that engages with the heat sink, and the portion that supports the adjustment mechanism. This segmentation allows the socket to simultaneously provide safety protection, structural support, and operational functionality.
2Object-affected harmful factors
If additional protective structures are added near the heat sink, then the safety is improved, but the device complexity increases
Solution Approach 1:
The protective rib structure is merged with the socket itself, combining the safety protection function with the existing support structure. This integration avoids adding separate protective components, thereby improving safety without significantly increasing device complexity.
Solution Approach 2:
The socket is designed to perform multiple functions: supporting the heat sink, enabling aiming adjustment through the adjustment mechanism, and providing safety protection through the rib structure. This multi-functionality reduces the need for additional components, maintaining simplicity while enhancing safety.
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 design effectively prevents hand contact with the heat sink, improving safety and reducing the need for additional space during aiming adjustments, while maintaining material efficiency and aesthetic appeal.
Implementation Method 1
a heat sink configured to absorb and radiate heat produced by the LED light source
Implementation Method 2
a heat sink configured to absorb and radiate heat produced by the LED light source
Implementation Method 3
a socket formed by an elastic member and configured to allow the heat sink to be fitted and supported in the rear opening portion
Data Source
AI summary
A lighting device includes a housing including a front opening portion and a rear opening portion; a light source unit including LED light sources and a heat sink configured to absorb and radiate heat produced by the LED light source; a socket formed by an elastic member and configured to allow the heat sink to be fitted and supported in the rear opening portion such that part of the heat sink is exposed rearward through the rear opening portion and that aiming adjustment is enabled by changing a position of the light source unit relative to the housing. A knob used for manually turning an adjustment screw is attached to a rear end portion of the adjustment screw, and the socket is provided with a rib extending along a circumferential direction of the socket and protruding rearward of the heat sink.