Card Edge Connector Spacer Height Adjustment
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Solution Overview
Problem
Conventional card edge connectors have insufficient height between the daughter board and the mother board, limiting the accommodation of additional electrical elements.
Innovation Solution
A card edge connector design featuring an insulative housing with a central slot and terminals, supported by a spacer with a preselected height and stopper portion to prevent rearward movement, allowing for increased height adjustment and secure attachment to the mother board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional card edge connector with one-piece insulative housing is used, then the structure is simple, but the height between daughter board and mother board is insufficient
Solution Approach 1:
The insulative housing is divided into multiple segments: a base portion, a support portion extending forwardly, and a stopper portion protruding upwardly. This segmentation allows the support portion to provide increased height while the stopper portion prevents rearward movement, resolving the contradiction between height and structural simplicity.
2Adaptability or versatility
If the height between daughter board and mother board is increased, then additional electrical elements can be accommodated, but the device becomes more complex
Solution Approach 1:
By segmenting the insulative housing into functional portions (base, support, stopper), the design achieves increased height for accommodating additional electrical elements while maintaining manufacturing simplicity through integrated molding of the segmented structure.
3Length of moving object
If the insulative housing is supported on the support portion, then the height is adjusted, but the housing may move rearwardly without the stopper portion
Solution Approach 1:
The stopper portion, as a separate functional segment protruding upwardly from the base portion, specifically addresses rearward movement prevention while the support portion handles height adjustment, allowing both functions to be achieved independently within the segmented structure.
Solution Approach 2:
The stopper portion is designed in advance to prevent the harmful effect of rearward movement by providing a mechanical stop before such movement can occur, ensuring stable positioning while allowing the support portion to achieve the desired height adjustment.
Data Source
AI summary
A card edge connector for connecting a daughter board to a mother board, includes an insulative housing defining a front mating face, a top portion, a bottom portion opposite to the top portion, and a central slot recessed from the mating face between the top portion and the bottom portion to receive the daughter board, a plurality of terminals retained in the insulative housing, and a spacer disposed under the insulative housing. The spacer having a preselected height and a mounting surface toward the mother board. The spacer and the bottom portion of the insulative housing are assembled by snap-fastening.