Stacked Circuit Board Housing Alignment With Collinear Positioning
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Solution Overview
Problem
Existing electronic devices face challenges in accurately positioning stacked circuit boards due to the use of support bodies, leading to misalignment and assembly difficulties.
Innovation Solution
The implementation of a positioning system with first and second housing members, each equipped with positioning parts that include board positioning portions and housing positioning portions, all arranged on the same straight line, to ensure precise alignment of circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a support body is used to stack circuit boards at a preset interval, then the circuit boards can be held at a predetermined distance, but the positioning accuracy between circuit boards deteriorates due to tolerance accumulation
Solution Approach 1:
The positioning function is segmented into multiple independent positioning parts (first positioning part with first board positioning portion and first housing positioning portion, second positioning part with second board positioning portion and second housing positioning portion). Each positioning part independently ensures positioning accuracy for its specific function, preventing tolerance accumulation from affecting the overall system.
Solution Approach 2:
The housing members act as intermediary components between the circuit boards. The positioning parts on the housing members serve as mediators that transfer and maintain positioning accuracy from one circuit board to another, ensuring precise alignment without direct contact between the circuit boards themselves.
2Manufacturing precision
If positioning parts are added to ensure accurate alignment, then positioning accuracy improves, but device complexity increases
Solution Approach 1:
The positioning parts are merged with the housing members as integral components. The first and second positioning parts are formed as part of the housing member structure, combining the housing function and positioning function into a single integrated component, thereby avoiding the need for separate positioning mechanisms.
Solution Approach 2:
The housing members serve multiple functions: they provide structural support, maintain spacing between circuit boards, and enable precise positioning through the integrated positioning parts. This multi-functionality reduces the need for additional dedicated positioning components, simplifying the overall device structure.
Data Source
AI summary
An electronic device includes a first circuit board, a second circuit board, a first housing member, and a second housing member. The first housing member includes a first positioning part having a first board positioning portion that positions the first housing member and the first circuit board, and a first housing positioning portion that positions the first housing member and the second housing member. The second housing member includes a second positioning part having a second board positioning portion that positions the second housing member and the second circuit board, and a second housing positioning portion that engages with the first housing positioning portion to position the first housing member and the second housing member. The first board positioning portion, the first housing positioning portion, the second board positioning portion, and the second housing positioning portion are arranged on a same straight line.