Spring-Loaded Hard Drive Carrier for Reliable Server Connector Contact

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Solution Overview

Problem

Poor contact between hard disks and connectors in servers due to manufacturing errors or tolerances leads to hard disks becoming unreadable during transportation.

Innovation Solution

The carrier design includes a sliding bracket with a spring mechanism that ensures consistent connection of the hard drive to the connector, enhanced by a sliding bracket and spring system to maintain contact, and incorporates heat dissipation features to stabilize and secure the hard drive.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a hard disk is directly installed to a server, then the installation process is simple, but poor contact between the hard disk and connector occurs due to manufacturing errors or tolerances

Engineering Contradiction:
Improveinstallation simplicityVSAvoidcontact reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

A carrier is introduced as an intermediary component between the hard disk and the server. The carrier includes a sliding bracket with a spring mechanism that acts as a mediator to ensure reliable electrical contact. The spring-loaded design compensates for manufacturing tolerances and positioning errors, maintaining consistent contact pressure between the hard disk connector and the server connector, thus resolving the contradiction between simple installation and reliable contact.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a carrier with spring mechanism is used to ensure consistent connection, then contact reliability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidcarrier structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The carrier employs a dynamic spring mechanism instead of a static rigid structure. The sliding bracket can move along the insertion direction, and the spring automatically adjusts its compression to compensate for dimensional variations. This dynamic design allows the system to adapt to manufacturing tolerances without requiring complex adjustment mechanisms, achieving reliable connection while keeping the structure relatively simple.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring mechanism changes the physical parameter of contact force dynamically. As the hard disk is inserted, the spring compresses to provide consistent contact pressure regardless of minor positioning variations. This parameter change (force application) ensures reliable electrical contact without requiring precise mechanical alignment, thereby improving connection reliability without proportionally increasing complexity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If manufacturing tolerances are reduced to eliminate poor contact, then contact reliability improves, but manufacturing precision requirements and cost increase

Engineering Contradiction:
Improvecontact consistencyVSAvoiddimensional tolerance requirement
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The carrier serves as a tolerance-absorbing intermediary that decouples the dimensional requirements between the hard disk and the server. The spring mechanism within the carrier compensates for cumulative tolerances from both components, allowing each component to be manufactured within standard tolerances while still achieving reliable contact through the compliant carrier interface.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 ensures reliable connection of hard drives to connectors, preventing separation during transportation and improving stability and heat dissipation, thus maintaining drive functionality.

Implementation Method 1

a sliding bracket and spring system to maintain contact

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

incorporates heat dissipation features to stabilize and secure the hard drive

Methodology Applied
Scientific EffectHeat dissipation: Conduction (thermal)

Data Source

PatentUS12593421B2Carrier, cabinet, and server
Publication Date: 2026.03.31 FULIAN PRESION ELECTRONICS (TIANJIN) CO LTD
  • US12593421B2 patent drawing
  • US12593421B2 patent drawing
  • US12593421B2 patent drawing

AI summary

A carrier for carrying a hard drive comprises a shell, a sliding bracket, and a spring. The sliding bracket is placed in the shell and is slidable relative to the shell, and the sliding bracket is configured for holding the hard drive. The spring is connected to the shell and the sliding bracket, and the spring is configured for pushing the sliding bracket. When the carrier is inserted into a cabinet, the spring pushes the sliding bracket to a connector of the cabinet to connect the hard drive to the connector. A cabinet comprises a chassis, a shelf, and a plurality of the carriers. The chassis is used for accommodating a circuit board with connectors. The shelf is placed in the chassis. Each connector is used for connecting the hard drive held in each carrier. A server with the carrier is also disclosed.