Card Edge Connector Positioning Apparatus Tolerance Compensation
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Solution Overview
Problem
Conventional memory slot positioning systems face issues with manufacturing tolerance, deformation under external forces, and difficulty in aligning the positioning apparatus with the circuit board pins, leading to errors and increased defects during memory insertion.
Innovation Solution
A card edge connector positioning apparatus with an anchor member and support member, featuring a pivoted extended portion that adjusts the distance between the fixing end and the anchor member, allowing for secure anchoring and alignment without swaying, and incorporating a support structure to compensate for manufacturing tolerances and external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the positioning means is made rigid to prevent deformation, then anchoring strength is improved, but manufacturing precision becomes harder to control due to tolerance accumulation
Solution Approach 1:
The patent applies the dynamics principle by introducing a pivoted extended portion that allows the positioning apparatus to rotate and adjust its position. This dynamic mechanism enables the rigid positioning means to compensate for manufacturing tolerances through rotational adjustment, rather than relying solely on precise initial positioning. The pivot point acts as a degree of freedom that absorbs positioning errors while maintaining anchoring strength.
2Ease of operation
If the positioning apparatus is made flexible to accommodate tolerance, then ease of installation is improved, but structural stability deteriorates causing swaying and deformation
Solution Approach 1:
The patent applies segmentation by dividing the positioning apparatus into distinct functional segments: a rigid support portion for stability, a pivoted extended portion for adjustment, and a positioning means for anchoring. This segmentation allows each part to perform its specific function optimally - the rigid support provides stability, the pivot provides adjustment capability, and the positioning means provides secure anchoring, resolving the contradiction between flexibility and stability.
3Manufacturing precision
If a spared space is allocated to allow movement for tolerance compensation, then manufacturing precision is improved, but positioning stability worsens causing left-right swaying
Solution Approach 1:
The patent applies the dimensionality change principle by introducing rotational movement (angular dimension) to compensate for linear positioning tolerances. Instead of allowing linear swaying in multiple directions, the pivot enables adjustment in a specific rotational dimension, converting linear positioning errors into angular adjustments. This resolves the contradiction by providing tolerance compensation without introducing lateral instability.
4Manufacturing precision
If the positioning means is constrained to prevent swaying, then positioning precision is improved, but ease of installation deteriorates due to alignment difficulty
Solution Approach 1:
The patent applies preliminary action by pre-positioning the pivot point at a specific location and pre-configuring the extended portion's rotation axis. This preliminary setup allows the positioning apparatus to automatically self-align during installation through rotational adjustment, eliminating the need for precise manual alignment. The pre-configured pivot enables the system to accommodate misalignment automatically, resolving the contradiction between precision and ease of installation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances anchoring and reduces deformation, improves precision and ease of memory insertion, and increases the structural strength and durability of the positioning apparatus, thereby reducing errors and defects.
Implementation Method 1
the extended portion is pivoted with the distal end of the anchor member. Rotating the anchor member can change the distance between the fixing end and the anchor member
Data Source
AI summary
A card edge connector positioning apparatus has a first retaining trough, a second retaining trough and a support member. The first retaining trough is closer to a distal end of the positioning apparatus than the second retaining trough. The support member has a first edge and a second edge at two opposite sides. The first edge is wedged in the first retaining trough to form a movement fulcrum. The second edge is held in the second retaining trough to form a gap greater than that of the first edge in the first retaining trough. Thus the second edge has a greater displacement in the second retaining trough than that of the first edge in the first retaining trough. Thereby a displacement space for installation tolerance is formed for the support member.