Transformer Vibration Reducing Unit With Rib-Filled Sound Absorption
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Solution Overview
Problem
Existing vibration reduction systems for transformers are limited in their ability to adapt to transformers of varying sizes and weights, often requiring redesign and are not easily installable, especially when the transformer is not mounted on the ground, and they struggle to effectively reduce noise radiated in different directions.
Innovation Solution
A vibration reducing unit comprising a sound absorbing member housed in a filling space between reinforcing ribs, covered by a cover member, which includes a main cover and a sub-cover, allowing for easy installation and modification, and capable of reducing noise through the use of materials like urethane foam that hardens over time, with communication holes for filling and closure members to seal the space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suspension apparatus is designed to support a transformer of predetermined size and weight, then vibration reduction is achieved for that specific transformer, but the apparatus cannot be applied to transformers of different sizes and weights without redesign
Solution Approach 1:
The vibration reducing unit is designed as a universal component that can be applied to transformers of various sizes and weights. The unit includes a housing with internal space for vibration reduction materials, and can be installed on different transformer models without requiring custom design for each specific transformer size or weight category.
Solution Approach 2:
The vibration reduction system is divided into modular vibration reducing units that can be independently installed on different parts of the transformer. Each unit contains its own housing and vibration reduction material, allowing flexible configuration and adaptation to different transformer sizes by selecting appropriate numbers and positions of units.
2Reliability
If a suspension apparatus supports the transformer from the bottom side, then vibration absorption is achieved, but the height of the transformer and apparatus is increased making it difficult to accommodate in existing substations
Solution Approach 1:
Instead of extending the vibration reduction solution vertically from the bottom of the transformer, the housing-mounted vibration reducing units utilize the horizontal surface area of the transformer. The units are installed on the outer surface of the transformer housing, effectively using the horizontal dimension rather than increasing vertical height.
Solution Approach 2:
The vibration reducing unit employs a housing structure that can be mounted as a thin layer on the transformer surface. The housing contains vibration reduction materials in a compact form factor that does not significantly increase the overall dimensions of the transformer assembly.
3Reliability
If a suspension apparatus is buried in the ground under the transformer, then vibration absorption is achieved, but the apparatus cannot be applied when the transformer is disposed spaced apart from the ground
Solution Approach 1:
The vibration reducing unit is designed to be mounted on the external surface of the transformer housing, making it applicable regardless of whether the transformer is grounded or elevated. The unit attaches to the transformer body itself, providing universal applicability across different installation environments and locations.
4Reliability
If a suspension apparatus is configured to support the transformer from below, then vibration generated during operation is absorbed, but vibration radiated in different directions cannot be effectively reduced
Solution Approach 1:
Multiple vibration reducing units are strategically positioned at different locations on the transformer housing surface. Each unit addresses vibration and noise radiation from its specific location, and the distributed arrangement ensures comprehensive coverage of vibration sources throughout the transformer structure.
Solution Approach 2:
The housing contains vibration reduction materials such as sound-absorbing foam or rubber compounds that provide multi-directional damping. These materials are configured within the housing structure to absorb and dissipate vibration energy radiating in various directions from the transformer components.
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 solution effectively reduces vibration and noise radiated from transformers, is easily installable without altering the internal structure, and can be adapted to various transformer configurations and noise directions, improving design freedom and noise reduction efficiency.
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
Implementation Method 2
the use of materials like urethane foam that hardens over time
Data Source
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AI summary
A vibration reducing unit and a transformer comprising same are disclosed. A vibration reducing unit according to one aspect of the present invention 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.