Card Edge Connector Mounting Structure for Anti-Shake PCB Fixing
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Solution Overview
Problem
Existing card edge connectors mounted on circuit boards tend to shake due to inadequate stabilization mechanisms.
Innovation Solution
A card edge connector design featuring an insulating housing with fixed nuts and bolts that secure it to the circuit board, utilizing through holes and passageways for stable attachment, and a metal shell for additional support and stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking member is used to lock and release the mating member, then the card edge connector can securely hold the mating member, but the card edge connector will shake inevitably
Solution Approach 1:
The patent extracts the locking function from the main connector body by using a separate locking member that can engage and disengage independently. This allows the connector to maintain stability when locked while enabling easy release when needed, resolving the contradiction between secure holding and shaking during operation.
Solution Approach 2:
The locking member is designed to transition between locked and unlocked states dynamically. When locked, it provides stable connection; when unlocked, it allows the connector to be removed. This dynamic capability resolves the contradiction by providing stability only when needed while maintaining operational flexibility.
2Device complexity
If traditional mounting methods are used without additional fastening components, then the device structure remains simple, but the card edge connector cannot be mounted stably on the circuit board
Solution Approach 1:
The mounting structure is segmented into separate components: the card edge connector body, nuts integrated into the insulating housing, and bolts for external fastening. This segmentation allows for stable mounting through the bolt-nut connection while keeping each component relatively simple in design.
Solution Approach 2:
The nuts are merged with the insulating housing as an integrated component, eliminating the need for separate nut mounting steps. This merging simplifies the overall assembly process while maintaining mounting stability through the bolt-nut connection to the circuit board.
Data Source
AI summary
A card edge connector mounted on a circuit board includes an insulating housing having two side walls extending along a longitudinal direction, plural terminals retained in the insulating housing, at least one nut fixed in the insulating housing adjacent to the side walls, and a bolt matching the nut to bolt the card edge connector to the circuit board.