Angled Circuit Board Assembly With Bent Metal Fitting Alignment
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Solution Overview
Problem
Existing circuit board assemblies that rely on jumper wires or protrusions and insertion holes for connecting multiple circuit boards face challenges in maintaining precise angle and positional relationships, leading to inaccuracies and increased time and cost for adjustment.
Innovation Solution
A circuit board assembly that incorporates a metal fitting with a bent portion spanning both sides of adjacent circuit boards, allowing for precise adjustment and fixation of the angle and positional relationship between the boards without the need for extensive cutting or soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If jumper wire is used to connect circuit boards, then the structure is simple and easy to manufacture, but the angle and positional relationship between circuit boards are incorrect and cannot be strictly adjusted
Solution Approach 1:
The connection structure is divided into two functional parts: a support member that provides mechanical support and positional accuracy, and a jumper wire that provides electrical connection. This segmentation allows each component to specialize in its primary function without compromising the other.
Solution Approach 2:
The support member acts as an intermediary between the circuit boards, providing a rigid structural framework that maintains precise angular and positional relationships. The jumper wire then connects to this framework to provide electrical connectivity without needing to maintain structural precision itself.
2Manufacturing precision
If protrusion and insertion hole structure is used to connect circuit boards, then the angle and positional relationship are fixed and stable, but the circuit boards need to be cut out from large size circuit board and the adjustment takes time and cost
Solution Approach 1:
The connection system is segmented into a support member for structural precision and a jumper wire for electrical connection. This allows the support member to handle the complex positioning function while the jumper wire handles the simpler electrical connection function.
Solution Approach 2:
The support member serves multiple functions: it provides mechanical support, defines the angular relationship between circuit boards, and establishes the positional relationship. This multi-functionality consolidates what would otherwise require separate components into a single integrated element.
3Manufacturing precision
If protrusion and insertion hole structure is used to connect circuit boards, then the angle and positional relationship are fixed and stable, but the manufacturing time and cost increase due to cutting and adjustment
Solution Approach 1:
The support member is pre-formed with the required angular and positional characteristics before assembly. This preliminary preparation of the support structure eliminates the need for time-consuming adjustments during the assembly process, as the precision is built into the component itself.
Solution Approach 2:
By separating the structural support function from the electrical connection function, the assembly process can proceed more efficiently. The support member provides immediate positional and angular accuracy upon installation, while the jumper wire can be connected separately without requiring precise positioning adjustments.
Data Source
AI summary
A circuit board assembly includes a first circuit board, a second circuit board having a first side extending adjacent to a first side of the first circuit board, and a metal fitting including a portion bent at the angle and spanning both the first side of the first circuit board and the first side of the second circuit board. The second circuit board is in a posture having an angle other than 180° to the first circuit board. The metal fitting is fixed to both the first circuit board and the second circuit board.