Assembly Sheet Layout With Asymmetrical Marks for Board Identification
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Solution Overview
Problem
Existing assembly sheets fail to reliably distinguish between first and second wiring circuit boards due to symmetrical marks, leading to confusion when rotated, which affects proper identification and assembly.
Innovation Solution
The assembly sheet design includes asymmetrical marks on the supporting portion to differentiate first and second wiring circuit boards, ensuring clear identification even when rotated, and incorporates protruding portions for compact arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If symmetrical marks are used on the supporting portion, then the assembly sheet can be rotated around the center point, but the first and second wiring circuit boards cannot be distinguished from each other when rotated
Solution Approach 1:
The patent applies asymmetry by making the second mark asymmetrical to the first mark with respect to the center point. Specifically, the first mark is positioned at a first location on the supporting portion, while the second mark is positioned at a second location that is not point-symmetrical to the first location. This asymmetrical arrangement ensures that when the assembly sheet is rotated, the relative positions of the marks change in a way that allows clear distinction between the first and second wiring circuit boards, thereby maintaining identification accuracy while preserving rotational capability.
2Productivity
If multiple wiring circuit boards are arranged on a single assembly sheet, then productivity increases, but the complexity of distinguishing between boards increases
Solution Approach 1:
The patent uses asymmetrical mark positioning to simplify identification complexity. By ensuring that the second mark is not point-symmetrical to the first mark, each wiring circuit board can be uniquely identified even when multiple boards are arranged on a single assembly sheet. This approach maintains low identification complexity while enabling higher productivity through increased board density.
Solution Approach 2:
The patent applies local quality by assigning distinct positional characteristics to marks associated with different wiring circuit boards. The first mark has a specific location relationship with the first wiring circuit board, while the second mark has a different location relationship with the second wiring circuit board. This localized differentiation enables clear identification of each board's function and position, facilitating easier assembly and inspection processes.
Data Source
AI summary
An assembly sheet includes a supporting portion, a plurality of wiring circuit boards, and a joint portion. The supporting portion supports the plurality of wiring circuit boards. The supporting portion surrounds the plurality of wiring circuit boards while being separated from the plurality of wiring circuit boards by an interval. The joint portion joins the plurality of wiring circuit boards to the supporting portion. The plurality of wiring circuit boards includes a first wiring circuit board and a second wiring circuit board. The second wiring circuit board is arranged next to the first wiring circuit board while being separated from the first wiring circuit board by an interval. The second wiring circuit board is symmetrical to the first wiring circuit board with respect to a point centered therebetween. The supporting portion includes a first and second mark. The second mark is asymmetrical to the first with respect to the point.