Integrated Light Bar for Side-Emitting Downlight Circuit Continuity
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Solution Overview
Problem
Existing LED downlights require separate flexible light bars and diffusion covers for inner and outer lighting, leading to increased structural complexity, design costs, and installation challenges, including bonding wire difficulties and higher labor costs.
Innovation Solution
A side-emitting downlight with an integrated light bar, featuring an annular projection and light-emitting cavities for inner and outer light emission, along with a diffusion plate, light guide plate, and reflective paper, which maintains circuit integrity and allows for simultaneous inner and outer light emission with reduced bonding wire complexity and lower labor costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate flexible light bars and diffusion covers are used for inner and outer lighting, then lighting function is achieved, but structural complexity increases and design costs rise
Solution Approach 1:
The patent merges the inner light bar and outer light bar into a single integrated light bar structure. The integrated light bar contains both inner light emitting portions and outer light emitting portions, eliminating the need for separate flexible light bars and reducing structural complexity while maintaining both lighting functions.
Solution Approach 2:
The integrated light bar serves multiple functions simultaneously - it provides both inner lighting and outer lighting, acts as a structural support element, and maintains circuit continuity. This multi-functionality reduces the overall number of components needed in the downlight assembly.
2Adaptability or versatility
If separate flexible light bars are used for inner and outer lighting, then lighting function is achieved, but bonding wire complexity and labor costs increase
Solution Approach 1:
By combining inner and outer light bars into one integrated structure, the number of bonding wire connections is reduced. The integrated light bar has a unified circuit path that passes through the annular projection, simplifying wire bonding operations compared to connecting two separate light bars.
3Adaptability or versatility
If two flexible light boards are used, then lighting function is achieved, but installation thickness increases
Solution Approach 1:
The integrated light bar design consolidates what would require two separate light boards into a single compact structure. The light bar is positioned within the annular projection space, optimizing the use of available volume and reducing the overall installation thickness.
4Adaptability or versatility
If separate light bars are used, then lighting function is achieved, but circuit continuity is disrupted
Solution Approach 1:
The integrated light bar serves as a continuous circuit carrier that maintains electrical connectivity throughout the downlight assembly. The circuit path flows continuously through the integrated structure, eliminating discontinuities that would occur with separate light bars requiring multiple connections.
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 uninterrupted inner and outer light emission with reduced bonding wire complexity and lower labor costs, maintaining circuit continuity and allowing for various color temperature configurations.
Implementation Method 1
A LED downlight is a kind of downward lighting fixture embedded in a ceiling
Implementation Method 2
cooperates with a diffusion cover for atomization to achieve effect of outer-race lighting
Implementation Method 3
Different light sources, light guide plates and diffusion plates can be used to achieve different light effects
Implementation Method 4
a reflective paper is provided in the first light-emitting cavity
Data Source
AI summary
A side-emitting downlight with an integrated light bar is provided in this disclosure, which includes a face frame and a back plate. An annular projection is provided between the face frame and the back plate. The annular projection is provided with a notch, a first light bar is attacked to the inner peripheral wall of the annular projection, a second light bar is attacked to the outer peripheral wall of the annular projection and the first light bar and the second light bar are integrated and pass through the notch. In the side-emitting downlight with the integrated light bar according to the disclosure, with an uninterrupted integrated light bar, a function of inner-side and outer-side light emitting in two opposite directions can be realized, continuity and integrity of a circuit can be maintained, collocation of various color temperatures and simultaneous inner-side and outer-side light emitting can be realized.