Swappable Device Lever Mechanism for Hot-Plug Maintenance
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Solution Overview
Problem
Existing data processing systems face challenges with cumbersome screw-based operations for swappable devices, limited torque for connector insertion/removal, and lack of vertical swappability, leading to space inefficiency and maintenance difficulties, especially in systems with multiple hard drives or hot plug devices.
Innovation Solution
A swappable device design featuring a side cover with guide grooves, a lever mechanism, and a sliding plate that allows for horizontal and vertical movement, providing increased torque and ease of operation, reducing space occupation and facilitating frequent maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the swappable device to the motherboard, then the connection is secure and stable, but the operation becomes cumbersome and inconvenient
Solution Approach 1:
The patent replaces the screw-based mechanical fastening system with a lever-based latch mechanism. The lever engages with guide pillars and guide grooves to provide secure connection without requiring screws, thereby maintaining connection stability while dramatically improving ease of operation through simple lever movement.
Solution Approach 2:
The patent introduces guide pillars and guide grooves as intermediary elements between the swappable device and the carrier. These intermediaries enable the lever mechanism to effectively transmit force and achieve secure positioning without direct screw engagement, resolving the contradiction between secure connection and easy operation.
2Reliability
If the carrier is used to hold the hard disk, then the hard disk is securely positioned, but the carrier occupies space in the chassis
Solution Approach 1:
The patent extracts the positioning function from the carrier structure itself and transfers it to dedicated guide pillars and guide grooves. This allows the carrier to be simplified and minimized in size, reducing chassis space occupation while maintaining secure positioning through the extracted positioning mechanism.
Solution Approach 2:
The patent segments the carrier into functional components: the main carrier body for holding the hard disk, and separate guide pillars with guide grooves for positioning. This segmentation allows the positioning function to be concentrated in minimal-space elements while the carrier body remains compact.
3Ease of operation
If swappable members with limited torque are used, then the device is easy to operate, but the connectors cannot be properly inserted or removed from the motherboard
Solution Approach 1:
The patent employs a dynamic lever mechanism that can transition between different positions to generate varying torque levels. During insertion/removal operations, the lever provides high torque; during normal operation, the lever maintains a low-profile position for ease of operation. This dynamic behavior resolves the contradiction between operational simplicity and sufficient insertion force.
Solution Approach 2:
The patent adds a vertical dimension to the operation by having the lever move between a retracted position (for easy operation) and an extended position (for high torque insertion/removal). This dimensional change allows the system to provide high force when needed while maintaining operational simplicity during normal use.
4Ease of manufacture
If only horizontal swappable devices are used, then the implementation is simple, but the chassis space utilization is inefficient
Solution Approach 1:
The patent enables swappable devices to operate in the vertical dimension by introducing guide pillars that extend vertically and a lever mechanism that can engage at different vertical positions. This allows devices to be swapped vertically within the chassis, improving space utilization while maintaining implementation simplicity through the standardized guide pillar-groove interface.
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
The solution enables easy insertion/removal of connectors with higher torque, reduces chassis space usage, and supports frequent maintenance, particularly in data storage systems with hot plug devices.
Implementation Method 1
the interface card can be moved up and down by using torque, such that the connector of the interface card is inserted into or removed from the connector on the motherboard
Implementation Method 2
the swappable members of the prior art are not designed to avoid excessive operation
Data Source
AI summary
A swappable device includes a first side cover, a lever, a sliding plate, a functional module interface card and a second side cover. When the lever is rotated to move a guide pillar of the lever to a lower end point of an arc-shaped guide groove of the first side cover, a guide pillar of the sliding plate moves toward a rear end point of a linear guide groove of the lever and a lower end point of a linear guide groove of the first side cover. The sliding plate is actuated to drive the functional module interface card to move toward a lower edge of the first side cover relative to the first side cover until a plurality of connectors of the functional module interface card are at the farthest position relative to an upper edge of the first side cover.