Segmented Sensor Mounting Device for Motor Vibration Damping

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Solution Overview

Problem

Existing sensor mounting solutions for machinery, such as motors, face challenges due to vibrations and resonance issues, particularly when sensors are mounted on cooling ribs with varying dimensions and spacings, leading to inaccurate measurements and displacement.

Innovation Solution

A mounting device with a base element featuring multiple clamp elements that securely attach to machinery bodies, including motors, using form-fitting or force-fitting connections to minimize resonance and ensure accurate vibration measurement transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a sensor is mounted directly on cooling ribs of a motor, then the sensor can be positioned close to the machinery body for monitoring, but the sensor may be displaced due to strong vibrations and resonances may occur

Engineering Contradiction:
Improvesensor measurement accuracyVSAvoidsensor position stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The mounting device is segmented into a base element and multiple clamp elements (at least three) that can independently engage with different ribs. This segmentation allows the mounting device to distribute attachment points across multiple ribs, reducing the impact of vibrations on any single connection point and preventing sensor displacement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mounting device is pre-configured with multiple clamp elements positioned to engage with multiple ribs before the sensor is installed. This preliminary arrangement ensures that the sensor is securely anchored to the machinery body through multiple attachment points, preventing displacement during operation and reducing resonance effects.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If a mounting solution is designed for specific motor types with fixed rib dimensions, then the mounting can be simple, but the solution lacks universal applicability to different motor types

Engineering Contradiction:
Improvemounting device simplicityVSAvoidmounting device universality
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The mounting device is designed as a universal solution that can be applied to different motor types with varying rib configurations. The base element incorporates multiple clamp elements that can engage with ribs of different dimensions and spacings, allowing the same mounting device to be used across various motor types without requiring custom designs for each application.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The clamp elements are designed to be adjustable or flexible in their positioning, allowing them to adapt to different rib configurations dynamically. This enables the mounting device to maintain secure attachment across various motor types while keeping the overall design simple and manufacturable.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If a sensor is mounted with a loose connection to the motor, then installation is easy, but resonances may occur and measurements become inaccurate

Engineering Contradiction:
Improveinstallation easeVSAvoidvibration measurement accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The mounting device segments the connection between sensor and motor body into multiple discrete clamp elements distributed across at least three ribs. This segmentation provides secure attachment that eliminates loose connections and resonances, while the modular design keeps installation straightforward through simple attachment mechanisms at each clamp point.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4421455A1Mounting device, sensor assembly, motor assembly and use of a mounting device
Publication Date: 2024.08.28 ABB (SCHWEIZ) AG
  • EP4421455A1 patent drawingFigure 1~2
  • EP4421455A1 patent drawingFigure 3~4
  • EP4421455A1 patent drawing

AI summary

Mounting device configured to mount a sensor device to a machinery body, comprising: - a base element (11); wherein - the base element (11) comprises a first connection area (12) and a second connection area (13), wherein - the first connection area (12) and the second connection area (13) are arranged on opposing surfaces of the base element (11), and wherein - the first connection area (12) comprises at least three clamping elements (14) configured to be connected to a machinery body and the second connection area (13) comprises a connection element (15) configured to be connected to a sensor device.