Linear LED Lighting Apparatus Vibration Fixing
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Solution Overview
Problem
The challenge lies in securing precise light distribution and fixing the filament type LED in vehicle lighting systems, particularly in reducing the size of the optical system while maintaining both low and high beam functionality, and addressing the vulnerability of filament type LEDs to vibration.
Innovation Solution
A lighting apparatus with a linear light source is designed, featuring a spacer with mounting parts for terminal parts, a reflective bracket for fixing and heat dissipation, and a housing for secure installation, ensuring stable power supply and efficient light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a filament type LED is applied to implement a linear light source, then the optical system size is reduced, but the light source becomes vulnerable to vibration and difficult to fix precisely
Solution Approach 1:
The mounting structure is divided into multiple functional components: a holder that receives the linear light source, mounting parts formed on the holder, and a reflective bracket with fixing parts. This segmentation allows each component to perform its specific function optimally while working together to secure the light source against vibration.
Solution Approach 2:
The holder acts as an intermediary component between the linear light source and the reflective bracket. It provides mounting parts that interface with the terminal parts of the light source, while the reflective bracket provides fixing parts that secure the holder in place, thereby mediating the connection and securing mechanism.
2Volume of moving object
If a filament type LED is applied to implement a linear light source, then the optical system size is reduced, but the light distribution precision deteriorates
Solution Approach 1:
The holder is designed with mounting parts that are preliminarily formed to precisely receive and position the terminal parts of the linear light source. This preliminary positioning action ensures that the light source is correctly oriented and positioned before the reflective bracket is installed, thereby securing precise light distribution.
Solution Approach 2:
The conventional mechanical fixing method is replaced with a integrated mounting structure where the holder and reflective bracket work together. The mounting parts on the holder and fixing parts on the reflective bracket create a secure mechanical connection that maintains precise positioning without requiring additional external fixing mechanisms.
3Ease of manufacture
If conventional fixing method is used, then the installation is simple, but the light source position cannot be firmly fixed and heating performance is insufficient
Solution Approach 1:
The holder and reflective bracket are merged into an integrated assembly where the mounting parts on the holder and fixing parts on the reflective bracket work together as a unified securing mechanism. This merging provides both firm fixing stability and adequate heat dissipation while maintaining relatively simple installation through the coordinated design of the integrated components.
Solution Approach 2:
The reflective bracket serves multiple functions: it provides fixing parts to secure the holder in place, it reflects light from the linear light source to achieve the desired illumination pattern, and it provides a mounting structure that facilitates installation. This multi-functionality reduces the need for separate components while maintaining fixing stability.
4Volume of moving object
If the optical system size is reduced, then the overall vehicle lighting compactness is improved, but the heat dissipation capability deteriorates
Solution Approach 1:
The reflective bracket is designed to perform multiple functions within the compact optical system: light reflection to achieve proper illumination distribution, structural support for the holder, and heat dissipation through its extended surface area. This multi-functionality allows effective heat management without increasing the overall system volume.
Solution Approach 2:
The reflective bracket utilizes the three-dimensional space within the compact optical system by extending surfaces in multiple directions. This dimensional utilization maximizes the heat dissipation surface area within the constrained volume, allowing effective thermal management without increasing the overall optical system size.
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 provides a stable and efficient light distribution with secure fixing of the LED, improved heat dissipation, and enhanced durability against vibrations, maintaining precise light patterns and distribution.
Implementation Method 1
a reflective bracket mounted on a rear end of the spacer to cover the internal space, and having fixing parts that match the mounting parts to fix the terminal parts when the reflective bracket is mounted on the spacer, with an inner surface of the reflective bracket being made to reflect light emitted from the light source
Implementation Method 2
Each of the first reflective bracket and the second reflective bracket may be made of a material allowing heat conduction and electrical conduction
Data Source
AI summary
A lighting apparatus with a linear light source is provided. The lighting apparatus includes a light source extending in a longitudinal direction and having terminal parts on both ends of the light source to be connected to a power supply; a spacer having an internal space that is opened in a front-rear direction and accommodates the light source, wherein mounting parts formed on both ends of the internal space to provide the terminal parts; and a reflective bracket mounted on a rear end of the spacer to cover the internal space, and having fixing parts that match the mounting parts to fix the terminal parts when the reflective bracket is mounted on the spacer, wherein an inner surface of the reflective bracket is configured to reflect light emitted from the light source.