LED Wiring Layout for Switchable Series-Parallel Connections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light-emitting devices require separate wiring patterns for series and parallel connections, limiting flexibility and increasing manufacturing costs and complexity.
Innovation Solution
A light-emitting device with a common wiring pattern that allows switching between series and parallel connections using a mounting board with a predetermined wiring pattern, where wires connect light-emitting elements in series or parallel, and an extending portion outside the rows of elements reduces wire usage and absorption, while a reflective member enhances light extraction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate wiring patterns are used for series and parallel connections, then connection flexibility is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent implements a universal wiring pattern that can serve multiple connection functions. The same wiring pattern is used for both series and parallel connections of light-emitting elements, eliminating the need for separate wiring patterns. This is achieved by strategically placing wire connection regions that can be connected in different configurations to achieve series or parallel connections, thereby reducing device complexity while maintaining connection flexibility.
2Adaptability or versatility
If wires are used to connect wiring pattern parts, then connection flexibility is improved, but wire absorption and manufacturing costs increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring the wiring pattern with multiple wire connection regions during the manufacturing process. These connection regions are spaced at predetermined distances and designed to accommodate wires for switching between series and parallel connections. This preliminary preparation reduces the need for additional wire modifications and minimizes wire absorption during assembly, while maintaining connection flexibility.
3Manufacturing precision
If individual design of wiring pattern is performed, then connection specifications are improved, but manufacturing complexity and costs increase
Solution Approach 1:
The patent implements a universal wiring pattern design that can accommodate multiple connection specifications without requiring individual design variations. The wiring pattern includes wire connection regions that can be configured in different ways to achieve series or parallel connections, allowing a single standardized design to meet multiple connection requirements. This significantly reduces manufacturing complexity while maintaining the ability to achieve precise connection specifications.
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 flexible switching between series and parallel connections using a common wiring pattern, reduces wire absorption, and improves light extraction efficiency, achieving a lighting pattern similar to a point source with reduced manufacturing complexity and costs.
Implementation Method 1
a first reflective member partially covering the upper surface of the mounting board except for the wiring pattern
Data Source
AI summary
A light-emitting device includes light-emitting elements connected through a wiring pattern, at least one wire electrically connecting a portion of the wiring pattern to another portion of the wiring pattern, and a reflective member covering a region of the mounting board except for the wiring pattern. The wiring pattern includes wire connection regions at such a distance from each other as to allow the wire to connect the connection regions to each other. The connection regions being used to connect the light-emitting elements in series and/or in parallel by the wire in any one pattern of a plurality of connection patterns with different numbers of series and parallel connections. A plurality of rows of light-emitting elements each constituted of part of the light-emitting elements are disposed on the wiring pattern. The wiring pattern includes an extending portion provided outside of the rows and not provided between the rows.