Rotatable Link Plate Circuit Board Packaging Mechanism

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Solution Overview

Problem

Existing circuit board packaging structures, such as those for PCI cards, require cumbersome operations to insert and extract cards from information processing equipment, often resulting in friction issues and the need for external guides, which can lead to catching or scraping problems due to misaligned lever and slide guide positions.

Innovation Solution

A circuit board packaging structure featuring a lever that converts operator force into a direction different from the card's insertion or extraction direction, utilizing a link plate and joint plate mechanism to move the card parallel to the connector, eliminating the need for external guides and reducing friction by allowing vertical motion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a slide guide is provided to forcibly move the PCI card parallel in the interior of the carrier, then the PCI card can be moved parallel to the direction of inserting and extracting the connector, but the lever is caught in the middle of sliding or the slide is scraped off by friction

Engineering Contradiction:
Improvealignment precisionVSAvoidoperation smoothness
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent applies the dynamics principle by making the link plate rotatable rather than fixed, allowing it to dynamically adjust its orientation during the insertion/extraction process. This rotation capability enables the mechanism to absorb misalignment and friction issues that would occur with a rigid slide guide, while still maintaining the necessary parallel movement of the PCI card relative to the connector direction.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of the link plate from a fixed rigid structure to a rotatable structure with variable orientation. This parameter change allows the system to transition between different angular positions during operation, enabling smooth movement without the friction and catching problems that would occur with a fixed slide guide at a specific angle.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the lever is disposed on the external interface side surface where the carrier is projected, then the operating point of the lever is outside the carrier, but the lever is caught in the middle of sliding

Engineering Contradiction:
ImproveaccessibilityVSAvoidoperation reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces the link plate as an intermediary component between the lever and the PCI card. The link plate receives force from the lever and transmits it to move the PCI card, while its rotatable nature allows it to mediate the force transmission smoothly without causing the lever to get caught, thus maintaining both accessibility and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Volume of moving object

If space for pressing the upside of the PCI card by hand cannot be provided, then the equipment size is reduced, but a lever should be disposed on the external interface side surface

Engineering Contradiction:
Improveequipment volumeVSAvoidinsertion ease
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent moves the operation from a vertical pressing motion (requiring space above the PCI card) to a rotational motion of the lever applied at the side surface. This dimensional change in the operation vector allows the mechanism to function in a compact space while maintaining ease of operation through the side-mounted lever.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Enables smooth insertion and extraction of circuit board cards without causing damage to connectors and reduces operational complexity by allowing card movement parallel to the connector surface, eliminating frictional resistance and the need for external guides.

Implementation Method 1

a lever (111) for applying the operating force by an operator; a link plate (121) for converting the force applied to the lever (111) to the vertical motion of a PCI card (201)

Methodology Applied
Scientific EffectLever mechanism: Lever

Data Source

PatentUS8665608B2Circuit board packaging structure
Publication Date: 2014.03.04 HITACHI VANTARA LTD
  • US8665608B2 patent drawing
  • US8665608B2 patent drawing
  • US8665608B2 patent drawing

AI summary

The circuit board packaging structure capable of inserting and extracting an interface part of a circuit board into and from a connector part of the processing equipment in a direction different from a direction of attaching and detaching the circuit board to and from the processing equipment includes: an operating part which turns on receiving force; a plate part which is fixed to the circuit board to be rotatable in a direction reverse to a turning direction of the operating part, and converts the force received by the operating part to force in a direction different from the attaching and detaching direction to move the circuit board in that direction; a link part which connects the operating part with the plate part to transmit the force received by the operating part to the plate part; and a fastener which fastens the circuit board and the operating part with play.