Electromagnetic Flowmeter Cable Guide Mounting Clip

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Solution Overview

Problem

Magneto-inductive flow measuring devices face issues with cable damage and jamming due to metal edges in the pole shoe and coil core areas, especially during operation and assembly, leading to potential short circuits and increased rejection rates.

Innovation Solution

Incorporating a cable guide device, such as a mounting clip, to securely route and protect the cable through the pole shoe and coil core, preventing damage and ensuring precise positioning and retention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are routed around the pole shoe and coil core without guidance, then assembly is simpler, but the cable is at risk of being pinched or damaged by metal edges

Engineering Contradiction:
Improvecable protectionVSAvoidcable routing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A cable guide device is introduced as an intermediary component between the cable and the metal edges of the pole shoe and coil core. This mediator prevents direct contact between the cable and sharp edges, eliminating the pinching risk while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cable guide device is pre-installed on the pole shoe before final assembly. This preliminary action ensures that the cable routing path is already prepared and protected, preventing damage during subsequent assembly operations without requiring complex retrofitted solutions.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If cables are routed without a guiding structure, then assembly time is reduced, but cable damage and short circuits occur during vibrations and operation

Engineering Contradiction:
Improvecable retentionVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The cable guide device serves as a mediator that secures the cable in its routing path, preventing displacement during vibrations and operation. The guide structure provides continuous retention without requiring complex locking mechanisms or extended assembly procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Power

If metal edges are present in the pole shoe and coil core areas, then the magnetic field generation is effective, but cable pinching and damage occur

Engineering Contradiction:
Improvemagnetic field strengthVSAvoidcable damage risk
Core Design Contradiction:
PowerVSObject-affected harmful factors

Solution Approach 1:

The cable guide device is positioned between the metal edges (which are necessary for magnetic field generation) and the cable. This intermediary allows the metal edges to maintain their functional role in generating the magnetic field while simultaneously preventing them from causing harm to the cable.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cable guide device is strategically placed only in the specific areas where cable damage risk exists (near pole shoe and coil core edges), rather than modifying the entire structure. This localized approach preserves the magnetic field generation effectiveness while providing protection only where needed.

Inventive Principle:
Principle #3Local quality

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 cable guide device effectively prevents cable damage and jamming, reduces assembly time, and ensures reliable operation by securely guiding the cable through the device, even during vibrations, thus enhancing the overall functionality and reducing non-functional units due to cable issues.

Implementation Method 1

a magnetic system that generates a magnetic field passing through the measuring tube and extending substantially transversely to the measuring tube axis

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

They comprise measuring electrodes that determine a measuring voltage. This voltage is induced by generating a magnetic field perpendicular to the moving charge carriers of a medium flowing through the measuring tube

Methodology Applied
Scientific EffectElectrodynamic induction: Electromagnetic Induction

Data Source

PatentEP2923181B1Electromagnetic flowmeter
Publication Date: 2021.07.14 ENDRESS HAUSER FLOWTEC AG
  • EP2923181B1 patent drawingFigure 1~2
  • EP2923181B1 patent drawingFigure 3~5
  • EP2923181B1 patent drawingFigure 6~8

AI summary

A pole shoe (16, 17), particularly a pole shoe (16, 17) for use with a device (1) for magnetic-inductive flow measurement, is provided with at least one cable guide device (4) for the guided passage of a cable (3) through the pole shoe (16, 17). The mounting clip (4) for cable routing in a pole shoe (16, 17) has at least one routing opening (40) of the mounting clip (4), through which at least one cable (3) is passed and at least one fastening region (41) for fastening the mounting clip (4) on the pole shoe (16, 17). At least one of the pole shoes (16, 17) on a magnetic-inductive flow measuring device (1) comprising at least two pole shoes (16, 17) and at least one coil core (14, 15) is provided with at least one cable guide device (4) for the guided passage of a cable (3) through the pole shoe (16, 17).