Transformer Vibration Reducing Unit With Ribbed Sound-Absorbing Housing

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Solution Overview

Problem

Existing vibration reducing units for transformers are limited in their ability to support transformers of varying sizes and weights, require redesign when dimensions change, and are difficult to install in existing substations, especially when transformers are not positioned at ground level, and they struggle to reduce vibrations in multiple directions.

Innovation Solution

A vibration reducing unit comprising a sound absorbing member accommodated in a filling space within a housing, covered by a cover member, which includes reinforcing ribs, allowing for easy installation and adaptation to different transformer configurations, and effectively reduces vibrations and noise by absorbing them before they are radiated externally.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing suspension apparatus is designed for predetermined size and weight, then it can support that specific transformer, but it cannot support transformers of different sizes and weights

Engineering Contradiction:
Improveadaptability to different transformer sizes and weightsVSAvoidredesign requirement when dimensions change
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The vibration reducing unit is designed with a universal structure that can accommodate transformers of various sizes and weights. The housing and sound absorbing member are configured to provide effective vibration reduction across different transformer configurations without requiring complete redesign, thereby achieving multi-functionality and adaptability.

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

Solution Approach 2:

The vibration reducing unit utilizes adjustable parameters such as the configuration of reinforcing ribs, the material properties of the sound absorbing member, and the dimensional adjustments of the housing to adapt to different transformer sizes and weights. By changing these parameters rather than the overall structure, the unit maintains effectiveness across various applications.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If suspension apparatus is buried in the ground, then it can absorb transformer vibration, but it is difficult to apply when transformer is spaced apart from the ground

Engineering Contradiction:
Improveapplicability to different installation positionsVSAvoidinstallation difficulty in existing substation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The vibration reducing unit serves as an intermediary device that can be installed between the transformer and the mounting surface. It includes mounting structures that facilitate installation in various positions, including elevated positions away from the ground, thereby acting as a flexible mediator that adapts to different installation environments without requiring ground burial.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If vibration reducing unit is added to existing transformer, then vibration and noise are reduced, but the height of transformer and unit is increased

Engineering Contradiction:
Improvevibration and noise radiationVSAvoidheight of transformer and suspension apparatus
Core Design Contradiction:
Object-affected harmful factorsVSLength of stationary object

Solution Approach 1:

The sound absorbing member is nested within the housing structure, and the vibration reducing unit is designed to integrate with the existing transformer assembly. This nested configuration allows the vibration reduction functionality to be incorporated without significantly increasing the overall height, as the components are arranged in a space-efficient, nested manner.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

Instead of increasing height in the vertical dimension, the vibration reducing unit utilizes horizontal or radial dimensions for its structure. The sound absorbing member and housing are configured to extend in directions other than vertically, thereby reducing vibration and noise without significantly increasing the transformer's overall height.

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

4Reliability

If support structure is designed for specific weight, then it provides stable support, but it cannot adapt to increased weight or size

Engineering Contradiction:
Improvestable support for transformerVSAvoidsupport capability for varying weight and size
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The vibration reducing unit incorporates dynamic characteristics through its sound absorbing member and housing structure that allow it to adapt to varying weights and sizes. The structure can flexibly respond to different load conditions while maintaining stable support, transitioning from a static fixed-design approach to a more dynamic adaptive system.

Inventive Principle:
Principle #15Dynamics

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 unit efficiently reduces vibrations and noise radiated from transformers, supports transformers of varying sizes and weights, and can be installed without altering the housing structure, providing versatile noise reduction across multiple directions.

Implementation Method 1

a sound absorbing member accommodated in a filling space formed in a housing and configured to absorb vibration or noise generated inside the housing

Methodology Applied
Scientific EffectVibration absorption: Damping

Data Source

PatentUS20250246364A1Vibration reducing unit and transformer comprising same
Publication Date: 2025.07.31 LS ELECTRIC CO LTD
  • US20250246364A1 patent drawing
  • US20250246364A1 patent drawing
  • US20250246364A1 patent drawing

AI summary

A vibration reducing unit and a transformer comprising same are disclosed. A vibration reducing unit according to one aspect of the present disclosure comprises: a sound absorbing member accommodated in a filling space formed in a housing and configured to absorb vibration or noise generated inside the housing; and a cover member coupled to the housing, wherein the filling space is formed between a plurality of reinforcing ribs provided in the housing and extending in one direction, and the cover member is coupled to the reinforcing ribs, the filling space, and the sound absorbing member accommodated in the filling space while covering same from the outside.