Light Source Module Elastic Conductive Terminals
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Solution Overview
Problem
Existing light source modules for vehicles lack flexibility in accommodating variations in the number and arrangement of power terminals, limiting their design adaptability.
Innovation Solution
A light source module with a light-emitting device, conductive regions, and a mounting substrate featuring conductive patterns and members that can be elastically connected, allowing for flexible configuration of power terminal connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed integral structure is used for power feeding terminals, then manufacturing is simplified, but adaptability to different terminal configurations is reduced
Solution Approach 1:
The power feeding terminal structure is divided into separate components: a socket portion and a terminal portion that can be assembled together. This segmentation allows the terminal configuration to be adjusted by repositioning or reconfiguring the terminal portion while keeping the socket portion fixed on the circuit board, thereby maintaining manufacturing simplicity while improving adaptability to different terminal configurations.
Solution Approach 2:
The terminal portion is designed to be reconfigurable or adjustable after assembly, allowing the light source module to adapt to different terminal arrangements. This dynamic capability enables the same base structure to support multiple terminal configurations without requiring complete redesign or remanufacturing.
2Reliability
If rigid fixed connections are used for conductive members, then electrical connection stability is improved, but stress concentration increases under environmental loads
Solution Approach 1:
The conductive members are designed with elastic properties, changing the connection parameter from rigid to flexible. This elastic design allows the conductive members to deform under stress, distributing mechanical loads and reducing stress concentration while maintaining stable electrical connections through continuous contact.
Solution Approach 2:
The conductive members utilize flexible elastic bodies that can deform to accommodate thermal expansion, vibration, and other environmental stresses. This flexibility ensures that electrical connections remain stable without creating stress concentration points that would lead to failure under repeated loading.
3Stress or pressure
If elastic contact is used for conductive members, then stress distribution is improved, but manufacturing precision requirements increase
Solution Approach 1:
The elastic conductive members are pre-designed with built-in compliance and tolerance for misalignment. The elastic deformation capability acts as a cushion that compensates for manufacturing variations, reducing the stringency of precision requirements during assembly while ensuring reliable stress distribution and electrical contact.
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 adaptable design and reduced stress concentration, improving the module's ability to accommodate manufacturing tolerances and environmental stresses while maintaining reliable electrical connections.
Implementation Method 1
a second end opposite to the first end, the second end being in contact with a respective one of the conductive region by elasticity
Data Source
AI summary
A light source module includes a light-emitting device having an upper surface and a lower surface and including: at least one light-emitting element and a plurality of conductive regions on the upper surface of the light-emitting device; a mounting substrate having an upper surface on which a lower surface side of the light-emitting device is located, the mounting substrate including conductive patterns on the upper surface of the mounting substrate, each conductive pattern including a device-side connecting portion and an external side connecting portion; and a plurality of conductive members each having a first end bonded to a respective one of the device-side connecting portion and a second end opposite to the first end, the second end being in contact with a respective one of the conductive region by elasticity to electrically connect the respective one of the conductive regions and a respective one of the conductive patterns.