Motor Vehicle Lighting Assembly with Pre-positioned Optical Module
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Solution Overview
Problem
The assembly of light devices for motor vehicles, particularly those using electroluminescent diodes, is complex and time-consuming due to the need for precise positioning of electronic cards relative to optical modules, which is not efficiently addressed by existing technologies.
Innovation Solution
A light device design that includes pre-positioning means for the optical module, electrical organ, and thermal dissipator using complementary forms and interlocking mechanisms, allowing for easy assembly and precise positioning in X, Y, and Z directions, with a common support and thermal dissipator facilitating simultaneous assembly of multiple elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional assembly methods are used for light devices with electroluminescent diodes, then precise positioning of electronic cards relative to optical modules can be achieved, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-positioning the optical module on the support with play in X, Y and Z directions before final assembly. The electrical organ is pre-mounted on the thermal dissipator, and positioning elements are pre-installed on both the support and thermal dissipator. This preliminary arrangement of components with intentional play allows for easier final assembly while maintaining precise relative positioning between electronic cards and optical modules.
2Manufacturing precision
If traditional assembly methods are used for light devices with electroluminescent diodes, then precise positioning of electronic cards relative to optical modules can be achieved, but the assembly process becomes time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-positioning the optical module on the support with play in X, Y and Z directions before final assembly. The electrical organ is pre-mounted on the thermal dissipator, and positioning elements are pre-installed on both the support and thermal dissipator. This preliminary arrangement of components with intentional play allows for easier final assembly while maintaining precise relative positioning between electronic cards and optical modules.
Solution Approach 2:
The patent applies segmentation by dividing the light device into distinct modular components: a support carrying the optical module, a thermal dissipator carrying the electrical organ, and positioning elements distributed between them. This segmentation allows each component to be prepared independently with pre-installed positioning elements, enabling parallel preparation and faster final assembly while maintaining precise relative positioning.
3Manufacturing precision
If multiple components are assembled separately to ensure precise positioning, then positioning accuracy is maintained, but the number of assembly steps increases
Solution Approach 1:
The patent applies merging by combining the positioning functions into a unified system of positioning elements distributed between the support and thermal dissipator. The first positioning elements on the support and second positioning elements on the thermal dissipator work together as an integrated system to define relative positioning in X, Y and Z directions. This merging allows multiple positioning functions to be achieved through coordinated interaction of elements rather than separate assembly operations.
Solution Approach 2:
The patent applies preliminary action by pre-positioning the optical module on the support with play in X, Y and Z directions before final assembly. The electrical organ is pre-mounted on the thermal dissipator, and positioning elements are pre-installed on both the support and thermal dissipator. This preliminary arrangement of components with intentional play allows for easier final assembly while maintaining precise relative positioning between electronic cards and optical modules.
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 design simplifies the assembly process by enabling pre-positioning and precise alignment of optical and electrical components, reducing the number of assembly steps while maintaining the quality of lighting, and allowing for efficient heat dissipation.
Implementation Method 1
an electrical organ, in particular an electronic card bearing a light source, united with a thermal dissipator
Data Source
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AI summary
The invention relates to a lighting device (10) for a motor vehicle, comprising an electrical member (36, 38, 40; 30, 32, 34) which has for example a light source and is rigidly connected to a heat sink (42), and at least one optical module (16, 18, 20) associated with the electrical member (36, 38, 40; 30, 32, 34), the optical module (16, 18, 20) being supported by a support (22). The lighting device (10) comprises first means (50, 52, 54, 56) for positioning the optical module (16, 18, 20) on the support (22), said positioning being achieved with clearances, referred to as pre-positioning clearances, in first X, second Y and third Z directions, which are substantially perpendicular to each other, between the optical module (16, 18, 20) and the support (22), second means (58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80) for positioning the electrical member (36, 38, 40; 30, 32, 34) on the optical module in the X and Y directions, and third means (82, 84, 86, 88, 90, 92) for positioning the heat sink on the support (22) in the Z direction.