Press-in Contact Guide Area Segmentation for PCB Positioning
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Solution Overview
Problem
Existing methods for connecting electronic components to printed circuit boards often result in improper positioning and deformation due to limited precision and space constraints, leading to inefficient assembly processes with complex and large tools.
Innovation Solution
A press-in contact with a guide area of maximum guide length multiple times its width, featuring two shoulder elements for precise positioning and flexibility, combined with a press-in tool that accommodates this design for accurate alignment and force transmission, allowing for high positioning accuracy even in limited space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a press-in contact with a long guide area (multiple times its width) is used, then positioning accuracy and rigidity in the press-in direction are improved, but the device complexity and installation space requirements increase
Solution Approach 1:
The guide area is divided into multiple guide sections (first guide section, second guide section, third guide section) with different functions. The first guide section provides positioning, the second guide section provides guidance during pressing, and the third guide section provides stopping position. This segmentation allows each section to be optimized for its specific function, achieving high positioning accuracy without excessive overall complexity.
Solution Approach 2:
Different sections of the guide area have different cross-sectional properties. The guide area has reduced cross-sectional area in certain regions to provide flexibility where needed, while maintaining sufficient rigidity in the press-in direction. This local variation in quality allows the guide area to be both precise and adaptable.
2Strength
If the guide area has high rigidity in the press-in direction, then press-in force transmission is improved, but flexibility in other directions is reduced
Solution Approach 1:
The guide area has non-uniform cross-sectional area along its length, with reduced cross-section in specific regions. This creates local flexibility in the x/y directions while maintaining sufficient rigidity in the z-direction (press-in direction) where the guide contours provide structural support. The varying cross-section allows the guide area to bend slightly in lateral directions for adaptability while remaining rigid enough for force transmission.
3Manufacturing precision
If assembly combs with complex positioning mechanisms are used, then positioning precision is improved, but installation space requirements increase
Solution Approach 1:
The positioning function is segmented into multiple simple guide sections rather than using a single complex positioning mechanism. Each guide section (first, second, third guide sections) performs a specific positioning or guidance function, and their combination achieves high positioning precision without requiring a large, complex assembly comb structure.
Solution Approach 2:
The guide area itself provides the positioning and guidance functions through its geometric features (guide contours, stops, reduced cross-section regions) rather than requiring external positioning mechanisms. The press-in contact's own structure serves the positioning function, eliminating the need for additional space-consuming positioning devices.
Data Source
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AI summary
The invention relates to a press-in contact and to a press-in tool for connecting an electronic component to a printed circuit board, the press-in contact of the electronic component being pressed into a contact opening of the printed circuit board by means of the press-in tool. The invention also relates to a method for producing a press-in contact. The press-in contact according to the invention comprises at least one guide region which can be received in a guide contour of the press-in tool in a position-fixing manner. The maximum length of the guide region is a multiple of the maximum width or is substantially equal to or only slightly shorter than the maximum width and/or the guide region is highly rigid in the press-in direction (z direction) and flexible in the other directions (x/y directions). The method according to the invention is characterized in that contiguous (interlinked) contours of the press-in contacts, which contours are produced as a tape, are supplied to a division station and are subdivided into individual press-in contacts in predetermined points of separation.