LED Headlight Bayonet Mounting for Precise Alignment
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Solution Overview
Problem
Existing vehicle headlight illumination devices face challenges in reliable mounting and alignment with respect to headlight optics, lacking a simple and secure method to achieve a defined physical position and adjustment.
Innovation Solution
The illumination device incorporates a bayonet-type lock mechanism with latching tabs on a heat sink, allowing for stable fixation and adjustable alignment, including five-axis or six-axis adjustment, and an electrical connection that ensures secure power supply without additional intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional mounting method is used for LED illumination devices in vehicle headlights, then the device can be installed, but reliable mounting and precise alignment with headlight optics cannot be ensured
Solution Approach 1:
The mounting mechanism is segmented into distinct functional components: latching tabs for securing the device, adjustment mechanisms for positioning, and electrical connection elements. This segmentation allows each component to perform its specific function reliably while maintaining overall system manageability.
Solution Approach 2:
The illumination device is pre-configured with integrated mounting features and alignment references during manufacturing. The latching tabs and adjustment mechanisms are prepared in advance, enabling reliable installation without requiring complex field assembly or additional alignment procedures.
2Manufacturing precision
If additional adjustment mechanisms are added to achieve defined installation position and alignment, then alignment precision is improved, but device complexity increases
Solution Approach 1:
Multiple adjustment functions are merged into a single integrated adjustment mechanism. The mechanism combines rotational adjustment for angular positioning with axial adjustment for depth positioning, allowing precise alignment to be achieved through a unified structure rather than multiple separate adjustment components.
Solution Approach 2:
The adjustment mechanism is designed to perform multiple functions simultaneously: it provides angular adjustment, depth adjustment, and serves as a mounting interface. This multi-functionality reduces the need for separate adjustment components, thereby improving alignment precision without proportionally increasing device complexity.
3Reliability
If a secure locking mechanism is implemented to ensure stable fixation, then mounting reliability is improved, but ease of installation deteriorates
Solution Approach 1:
The locking mechanism transitions from a locked state to an unlocked state through a simple rotational motion. The latching tabs are designed to engage securely in the locked position through plugging and rotary movement, but can be easily released by reversing the motion, providing both stable fixation and ease of installation.
Solution Approach 2:
Instead of requiring complex fastening operations to secure the device, the mechanism uses a release-oriented design where the default state is unlocked and easy to install, and security is achieved through a simple locking motion. This inversion of the traditional approach simplifies installation while maintaining reliable fixation.
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 solution enables reliable and adjustable mounting of light-emitting diodes and optics within vehicle headlights, facilitating various lighting applications with secure electrical connections, ensuring precise alignment and easy installation.
Implementation Method 1
a heat sink for the purpose of cooling the at least one light-emitting diode
Implementation Method 2
a heat sink for the purpose of cooling the at least one light-emitting diode
Data Source
AI summary
A lighting device includes at least one light-emitting diode (3) and a cooling aggregate (1) for cooling the at least one light-emitting diode (3), wherein the cooling aggregate (1) is provided with locking elements (17, 18, 19) adapted to form a bayonet catch with a fixing device (30) holding the lighting device. Preferably, at least one of the lighting devices is mounted as the light source in a vehicle headlight.