Adjustable Downlight Assembly with Heatsink and Rotation Ring
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Solution Overview
Problem
Downlight fixtures face challenges in heat management and adjustment within confined spaces, where tilting the light source requires multiple tools and is limited by space constraints, and existing solutions do not allow for easy, tool-free adjustment of the light beam direction.
Innovation Solution
An adjustable assembly featuring a heatsink with cooling fins, connected to a mounting bracket and rotation ring, which allows for tilting and rotating of the light source up to 45 degrees and 360 degrees respectively, using a tension spring mechanism for incremental angle adjustments without the need for tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the light source is tilted to project light at an angle, then the lighting direction is adjusted, but the adjustment requires multiple tools and is limited by space constraints
Solution Approach 1:
The patent implements a dynamic adjustment mechanism where the light source can be tilted and rotated through a series of connected components (mounting bracket, rotation ring, tilt ring) that enable smooth movement without requiring tools. The tension spring provides continuous adjustable tension to maintain the light source at any desired angle, transforming a static fixed-position system into a dynamic adjustable one.
Solution Approach 2:
The adjustment mechanism is divided into separate functional segments: the mounting bracket for basic attachment, the rotation ring for 360-degree rotation, and the tilt ring for angular adjustment. Each segment handles a specific degree of freedom, allowing independent adjustment of rotation and tilt without interfering with other components or requiring additional tools.
2Reliability
If a heatsink is used to manage heat, then the light source lifespan is extended, but the space required for heat dissipation increases
Solution Approach 1:
The heatsink is integrated within the mounting bracket structure, with the light source positioned inside the heatsink cavity. The mounting bracket serves dual purposes: structural support and heat dissipation housing. This nested arrangement allows the heatsink to be contained within the existing fixture volume without requiring additional external space.
Solution Approach 2:
The patent combines the mounting bracket and heatsink into a unified structure where the bracket's body forms part of the heat dissipation system. The bracket includes integrated features such as the rotation ring and tilt ring that work together with the heatsink, merging multiple functions (mounting, rotation, tilting, and heat dissipation) into a single compact assembly.
3Adaptability or versatility
If the light source is tilted in confined spaces, then the lighting angle is adjusted, but the adjustment range is limited
Solution Approach 1:
The patent implements a two-stage dynamic adjustment system: the rotation ring enables 360-degree horizontal rotation, and the tilt ring provides vertical angular adjustment. The tension spring allows continuous adjustment within the tilt range, enabling the light source to adapt to various lighting angles without requiring additional space, as the adjustment mechanisms are integrated within the fixture's existing volume.
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
Enables easy and tool-free adjustment of the light beam direction within confined spaces, effectively managing heat through the heatsink's cooling fins and ensuring the light source operates optimally, extending its lifespan.
Implementation Method 1
a heatsink configured to receive a light source, where the heatsink comprises a plurality of cooling fins
Implementation Method 2
the heatsink comprises a plurality of cooling fins
Implementation Method 3
a tension spring having a first end attached to the front wall and a second end engaged with a plurality of locking steps
Implementation Method 4
the tension spring applies a tension force to the plurality of locking steps to keep the heatsink in a fixed position
Data Source
AI summary
An adjustable assembly for an adjustable downlight fixture assembly with a heatsink comprising a plurality of cooling fins that is connected to a mounting bracket where the heatsink is tiltably engaged with the mounting bracket. The heatsink is configured to receive a light source and may tilt within a confined space of the downlight fixture assembly up to 45 degrees from a vertical plane. The mounting bracket comprises a first side wall and a second side wall with a front wall connected between them where the first side wall and second side wall are connected to a rotation ring that is rotatably engaged with the frame of the downlight fixture.