Adjustable Lighting Device with Twist Lock and Heat Sink
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Solution Overview
Problem
Modern lighting devices with LED components face challenges in maintaining optimal temperature and adjusting light direction, especially in thermally contained or poorly ventilated environments, where heat transfer is inhibited and directional adjustments are complicated.
Innovation Solution
A lighting device assembly featuring a rotatable support structure with annular ring members and a releasable connection mechanism, allowing for adjustable light direction while maintaining effective heat dissipation through a heat sink member, enabling both thermal management and directional adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the LED component is mounted on a moveable structure to adjust light beam direction, then the direction of light emission can be adjusted, but heat transfer from the LED component becomes inefficient and temperature control becomes difficult
Solution Approach 1:
The lighting device is divided into separate functional modules: a heat sink assembly that remains stationary and thermally coupled to the LED, and a movable lens or reflector assembly that can be independently rotated to adjust beam direction. This segmentation allows the LED to remain in a fixed, thermally managed position while still providing directional adjustability through the movable optical components.
2Ease of manufacture
If the lighting device is mounted in an enclosed environment, then the lighting device can be installed in housing or ceiling recesses, but heat transfer away from the LED is inhibited
Solution Approach 1:
A heat sink assembly serves as an intermediary thermal management component between the LED and the enclosed mounting environment. The heat sink is thermally coupled to the LED through direct contact or thermal interface material, providing a dedicated heat transfer pathway that extends beyond the enclosed space, allowing efficient heat dissipation even when the LED itself is confined within a housing or ceiling recess.
3Reliability
If a releasable connection mechanism is added to lock the light engine assembly, then the light engine can be securely locked and released, but the device complexity increases
Solution Approach 1:
The releasable connection mechanism utilizes a simple cam-based locking system where a cam member rotates to engage or disengage locking surfaces on the light engine assembly. This mechanical substitution replaces complex multi-component fastening systems with a single rotational motion that simultaneously provides both locking and release functions, minimizing the number of parts while maximizing reliability.
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 allows for efficient heat dissipation and adjustable light direction, ensuring the LED components operate within a desired temperature range and providing flexible lighting configurations.
Implementation Method 1
the brightness of an LED light source is at least partially related to the speed in which heat can be transferred away from the LED component
Data Source
AI summary
A lighting device assembly includes a light engine assembly and a mounting housing. A rotatable support structure supports the light engine assembly on the mounting housing for rotation relative to the mounting housing about a first axis. A releasable connection mechanism locks the light engine assembly to the rotatable support structure and is selectively releasable to release the light engine assembly from the rotary support structure.