LED Light Source with Removable Cartridge for Easy Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED light sources face challenges in providing uniform illumination and efficient light distribution, particularly in designs that require directional lighting and easy maintenance, such as in LED light bulbs and backlight frames for art displays.
Innovation Solution
The LED light source incorporates a longitudinally extending light guide with a removable cartridge containing LEDs, a housing with a recess system for easy cartridge insertion and biasing mechanisms, and optional features like heat sinks and reflectors for improved thermal management and light control, allowing for directional lighting and even illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LEDs are fixed permanently in the light source, then reliability is improved, but ease of repair deteriorates
Solution Approach 1:
The LED assembly is segmented into a removable cartridge that can be separated from the light guide and housing. This allows the LED cartridge to be replaced independently without replacing the entire light source, resolving the contradiction between reliability and ease of repair.
Solution Approach 2:
The LED cartridge is extracted as a separate removable component from the light guide assembly. The cartridge can be removed and replaced through an opening in the housing, enabling easy maintenance while maintaining reliable LED operation during use.
2Productivity
If the light guide is directly coupled to the LED, then light distribution efficiency is improved, but ease of repair deteriorates
Solution Approach 1:
The LED cartridge is extracted as a separate removable component from the light guide assembly. During operation, the cartridge is positioned to directly couple with the light guide for efficient light distribution. For maintenance, the cartridge can be removed independently, resolving the contradiction between efficiency and ease of repair.
Solution Approach 2:
The LED cartridge transitions from a fixed position during operation to a removable position during maintenance. The dynamic design allows the cartridge to be inserted and secured for optimal light coupling, then easily removed for replacement, resolving the static contradiction between efficiency and repairability.
3Reliability
If the housing is sealed tightly, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The housing is segmented with a dedicated opening that allows the LED cartridge to be inserted and removed while maintaining the sealed integrity of the rest of the housing. This resolves the contradiction between seal reliability and operational ease.
Solution Approach 2:
An opening is extracted from the housing structure specifically for cartridge access. This opening allows easy insertion and removal of the LED cartridge while the remainder of the housing maintains its sealed configuration for reliability.
4Illumination intensity
If multiple LEDs are arranged in a linear array, then illumination uniformity is improved, but device complexity increases
Solution Approach 1:
Multiple LEDs are merged into a single integrated cartridge assembly that functions as one unit. This simplifies the device by allowing the entire LED array to be replaced as a single component rather than individually, reducing operational complexity while maintaining uniform illumination through the linear array arrangement.
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
This configuration enables efficient light distribution with adjustable illumination patterns, enhances maintenance by allowing easy replacement of cartridges, and improves thermal management, resulting in a more reliable and efficient LED lighting solution.
Implementation Method 1
a first light guide having a longitudinally extending light emitting face
Implementation Method 2
a biasing member biasing the cartridge to the inserted position
Implementation Method 3
The cartridge further includes a heat sink
Implementation Method 4
The cartridge further includes a heat sink
Data Source
AI summary
A LED light source includes a longitudinally extending light guide having a longitudinally extending light emitting face having a length, a first end face and a longitudinally spaced apart second end face. A LED light source is provided at least at the first end face. The light emitting face has a plurality of light emitting locations provided thereon. The density of the light emitting locations increases from the first end face towards the second end face.