Scissor Mechanism Rack for Server Cooling and Access

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Solution Overview

Problem

Existing rack designs for electronic devices occupy valuable space with telescopic slid-out rails, which impede airflow and heat dissipation, as they are necessary for accessing and servicing the devices.

Innovation Solution

The use of a scissor mechanism with a mounting interface and support rails allows for efficient mounting and easy access to electronic devices without occupying much space, enabling better airflow and supporting high-weight devices with minimal lateral space usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If telescopic slid-out rails are used for mounting electronic devices, then devices can be accessed and serviced outside the rack, but significant space is occupied along the sides of the rack, impeding cooling air flow

Engineering Contradiction:
Improveaccessibility of electronic devicesVSAvoidspace occupied by mounting mechanism
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The scissor mechanism transforms the mounting system from a lateral extension model (telescopic rails) to a vertical expansion model. The scissor legs expand vertically to provide the necessary extension distance, freeing up lateral space for cooling air flow while maintaining device accessibility. This dimensional transformation resolves the contradiction by occupying minimal lateral area (6) while preserving ease of operation (33).

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

Solution Approach 2:

The scissor mechanism employs a dynamic, expandable structure that transitions between a compact folded state (when devices are in operating position) and an extended state (when devices need servicing). This dynamic capability allows the system to occupy minimal space during normal operation while providing full accessibility when needed, resolving the space versus accessibility contradiction.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If telescopic slid-out rails are used, then devices can be displaced to service position, but the rails occupy significant lateral space needed for cooling air flow

Engineering Contradiction:
Improvedisplacement of electronic devicesVSAvoidimpediment to cooling air flow
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The scissor mechanism redirects the displacement path from lateral movement (along the rack sides) to vertical expansion. This allows devices to be accessed and serviced with minimal lateral space occupation, eliminating the harmful effect of impeded cooling air flow while preserving the useful effect of device displacement and accessibility.

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

3Area of stationary object

If scissor mechanism is used instead of telescopic rails, then lateral space is freed for cooling air flow, but support for high-weight devices must be ensured

Engineering Contradiction:
Improvelateral space availabilityVSAvoidsupport capacity for electronic devices
Core Design Contradiction:
Area of stationary objectVSStrength

Solution Approach 1:

The scissor mechanism integrates multiple functions into a single structure: the scissor legs provide both the mechanical support necessary for high-weight devices and the expansion capability for device accessibility. The support rails and guide structures are merged with the scissor mechanism itself, creating a unified system that simultaneously ensures strength (14) and maximizes lateral space availability (6).

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The scissor mechanism employs robust structural materials and composite construction methods to ensure adequate support capacity for high-weight electronic devices. The design incorporates reinforced connection points, durable scissor leg materials, and integrated support structures that maintain strength while minimizing lateral space occupation.

Inventive Principle:
Principle #40Composite materials

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 scissor mechanism provides stable and space-efficient mounting and access to electronic devices, enhancing airflow and reducing mechanical stress, while maintaining device stability and preventing unintentional movement.

Implementation Method 1

The scissor mechanism may have at least one support wheel adapted for rolling on the support rail so that the electronic device can be displaced with low friction between the operating position and the service position outside the rack.

Methodology Applied
Scientific EffectRolling: Roller

Implementation Method 2

a damper can be provided for damping a movement of the scissor mechanism when approaching an extended end position, thereby preventing strong mechanical shocks

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentUS12075590B2Rack for receiving electronic devices, in particular measuring devices or servers
Publication Date: 2024.08.27 ROHDE & SCHWARZ GMBH & CO KG
  • US12075590B2 patent drawing
  • US12075590B2 patent drawing
  • US12075590B2 patent drawing

AI summary

A rack for receiving electronic devices has a plurality of receiving slots. At least one of the receiving slots has a scissor mechanism, the scissor mechanism having a first end connected to the rack and a second end provided with a mounting interface. The mounting interface is adapted for being mechanically connected to an electronic device.