Board-to-Board Connector Size Reduction via Hole Merging
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Solution Overview
Problem
Existing board-to-board connectors are large in size, limiting their potential for integration in compact electronic devices.
Innovation Solution
A board-to-board connector design featuring a rectangular flat-plate housing with strategically positioned positioning holes and contact rows, allowing for a compact form factor by optimizing the placement of positioning holes and contact rows, and using reinforcing members to maintain positioning accuracy and prevent deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning holes are distributed across both side surfaces of the housing, then positioning accuracy is improved, but the overall size of the connector increases
Solution Approach 1:
The patent combines both positioning holes (first and second positioning holes) on the same side surface of the housing instead of distributing them across opposite side surfaces. This merging approach reduces the overall width of the connector while maintaining the dual-hole positioning function, thereby achieving size reduction without sacrificing positioning accuracy.
Solution Approach 2:
The patent repositions the positioning holes from a distributed arrangement across both side surfaces to a concentrated arrangement on a single side surface. This dimensional reorganization allows the positioning function to be achieved within a smaller footprint, effectively reducing the connector's width while preserving positioning precision.
2Volume of moving object
If the connector size is reduced, then integration in compact devices is improved, but positioning accuracy may deteriorate
Solution Approach 1:
The patent merges both positioning holes on the same side surface of the housing, allowing the connector to achieve accurate positioning of the second board relative to the first board within a reduced volume. This configuration maintains the necessary positioning precision while enabling compact device integration.
3Area of stationary object
If positioning holes are placed close to contact rows, then the connector width is reduced, but positioning accuracy may be compromised
Solution Approach 1:
The patent strategically positions the first and second positioning holes on the same side surface at locations that are close to the contact rows but still maintain adequate spacing. This local optimization allows the connector width to be minimized while preserving positioning accuracy by carefully selecting the specific locations where positioning holes are formed relative to the contact row positions.
Data Source
AI summary
A connector includes a rectangular flat-plate housing including a first positioning hole and a second positioning hole, and a contact row and a contact row held on the housing. The housing includes a first pitch side surface and a second pitch side surface on an opposite side of the first pitch side surface. The contact row and the contact row extend from the first pitch side surface to the second pitch side surface. The first positioning hole is disposed between the first pitch side surface and the contact row, and the second positioning hole is disposed between the first pitch side surface and the contact row.