Cable Bracket Assembly for Vibration and PIM Suppression

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Solution Overview

Problem

Conventional cable management systems fail to securely support cables, leading to vibrations and signal interference or passive intermodulation (PIM), which worsen with advanced telecom technologies like 5G, resulting in poor signal quality.

Innovation Solution

A cable management system featuring a mounting bracket with a backing plate, face mounts, and extender brackets with rounded corners and gussets, along with fastening members that use bolts and inner threads to securely attach components made of galvanized steel, preventing vibrations and PIM by ensuring stable connections and avoiding dissimilar metal contacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If conventional beams or extender brackets are used to support cables, then cable support function is provided, but the brackets become loose relative to each other and vibrations occur

Engineering Contradiction:
Improvestability of bracket connectionVSAvoidsignal transmission quality
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent applies rounded corners to the bracket components instead of sharp edges. This curvature design serves dual purposes: it eliminates vibration sources that cause PIM (passive intermodulation) and improves signal transmission quality while maintaining structural integrity and stability of the bracket connection.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent incorporates preliminary anti-vibration measures by designing brackets with rounded corners and proper structural geometry before installation. This preliminary design prevents vibration and PIM issues from occurring in the first place, rather than attempting to mitigate them after installation.

Inventive Principle:
Principle #9Preliminary anti-action

2Ease of manufacture

If sharp-edged brackets are used for cable support, then installation is simple, but passive intermodulation (PIM) and signal interference occur

Engineering Contradiction:
Improveease of bracket manufacturingVSAvoidpassive intermodulation (PIM)
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent replaces sharp edges with rounded corners on bracket components. This design change eliminates the harmful PIM effect while maintaining ease of manufacture through standard fabrication processes. The rounded corners are integrated into the basic bracket geometry without requiring complex additional manufacturing steps.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Ease of manufacture

If dissimilar metals are used in bracket components, then manufacturing cost is reduced, but PIM and signal interference increase

Engineering Contradiction:
Improvemanufacturing costVSAvoidsignal interference
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent employs homogeneity by using uniform galvanized steel material throughout all bracket components. This eliminates dissimilar metal contact that causes PIM and signal interference, while the galvanized steel provides both corrosion resistance and electrical uniformity. The consistent material composition maintains manufacturing efficiency while resolving the PIM issue.

Inventive Principle:
Principle #33Homogeneity

4Adaptability or versatility

If flexible cable management configuration is provided, then adaptability to various setups is improved, but connection stability may be compromised

Engineering Contradiction:
Improvecable management flexibilityVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent divides the cable management system into modular bracket components that can be independently positioned and configured. Each bracket segment provides stable, vibration-free support through its rounded corner design, while the modular nature allows flexible arrangement to accommodate various cable management requirements without compromising overall connection stability.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11877380B2Cable management system
Publication Date: 2024.01.16 WANHO MANUFACTURING LLC
  • US11877380B2 patent drawing
  • US11877380B2 patent drawing
  • US11877380B2 patent drawing

AI summary

A cable management system includes a mounting bracket having a backing plate, two face mounts, and a panel, said face mounts each include an orifice and an aperture of different inner diameter, said panel includes a number of openings and a number of holes of different inner diameter, a extender bracket includes two walls and two end pieces secured together, said walls and said end pieces each include an eyelet and a piercing of different inner diameter, a fastening member includes a backing plate insert for engaging with said orifice of said face mounts and said eyelet of said walls and said end pieces of said extender brackets, a screw hole formed in said fastening member and formed through said backing plate insert, and an inner thread formed in said fastening member and spaced from said screw hole and said backing plate insert for engaging with bolts.