Position Adjustable Printed Circuit Board Assembly
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Solution Overview
Problem
The existing circuit board assemblies require multiple electrical connectors and additional mechanical structures to support daughter boards relative to mother boards, increasing material and assembly costs.
Innovation Solution
A daughter board is formed within the mother board with interspersed openings and support legs that are removed after component installation, allowing semi-rigid leads to maintain the daughter board's position and provide electrical connectivity, eliminating the need for multiple connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical connectors and mechanical support structures are used to connect daughter board to mother board, then reliable electrical connection and physical support are achieved, but material costs and assembly complexity increase
Solution Approach 1:
The patent merges the electrical connection function and mechanical support function into a single integrated structure. The support legs are formed integrally with the circuit board, eliminating the need for separate connectors and mechanical support structures. This integration directly reduces assembly complexity while maintaining reliable electrical connections through the built-in support legs and conductive pathways.
Solution Approach 2:
The support legs serve multiple functions simultaneously: they provide mechanical support to hold the daughter board at the correct position, provide electrical connection pathways between mother and daughter boards, and serve as alignment features during assembly. This multi-functionality eliminates the need for separate dedicated connectors and support structures, reducing both material costs and assembly complexity.
2Reliability
If multiple connectors are used to connect mother board and daughter board, then electrical connectivity is ensured, but material costs increase
Solution Approach 1:
The patent combines multiple electrical connection functions into a single integrated support leg structure. Instead of using multiple separate connectors to achieve electrical connectivity, the support legs are formed as integral parts of the circuit board with built-in conductive pathways, eliminating the need for additional connectors and reducing material costs.
Solution Approach 2:
The support legs are designed to perform multiple functions: mechanical support, electrical connection, and alignment. This multi-functionality reduces the total number of components needed, as the same structure that provides physical support also establishes electrical connectivity, thereby reducing material costs while ensuring reliable electrical connections.
3Stability of the object's composition
If additional mechanical structure is added to support daughter board, then physical positioning is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges the mechanical support function into the circuit board itself through integrally formed support legs. Instead of adding separate mechanical support structures, the support legs are molded or formed as part of the circuit board manufacturing process, eliminating the need for additional manufacturing steps and reducing production costs while maintaining stable relative positioning.
Solution Approach 2:
The support legs serve as multi-functional elements that provide mechanical support for positioning the daughter board, maintain stable relative positions during operation, and facilitate assembly alignment. This integration into the circuit board structure avoids additional manufacturing costs associated with separate mechanical components while ensuring positional stability.
Data Source
AI summary
A circuit board assembly includes a mother board and a daughter board. The daughter board is defined by a plurality of frangible connections to the mother board and is disposed on a common plane with the mother board. After all the electronic devices are installed to the mother board and the daughter board on a common plane the frangible connections are broken to allow the daughter board to be moved to a desired position relative to the mother board. The electrical conductors that connect the daughter board to the mother board are semi-rigid to provide movement while maintaining a desired position of the daughter board relative to the mother board.