Transformer Noise Inhibiting Sound Absorbing Device
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Solution Overview
Problem
Conventional power transmission transformers generate significant resonant noise due to their complex structure and reinforcing frames, which complicates the effective integration of sound-absorbing devices, leading to noise disturbance in the environment and among workers.
Innovation Solution
The transformer design incorporates sound-absorbing devices between the housing and heat dissipators, featuring fixing frames, outer wallboards, sound-absorbing materials, and waterproof films, mounted between upper and lower pipings and heat dissipators to reduce resonant noise effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcing frames are welded to the housing to increase structural strength, then the structural strength of the housing is improved, but the device complexity increases and noise is generated
Solution Approach 1:
The housing is divided into modular sections with standardized reinforcement structures. The reinforcing frames are segmented into reusable components that can be systematically arranged, reducing overall complexity while maintaining strength requirements.
Solution Approach 2:
The reinforcing frames are merged with the sound-absorbing device mounting structures. The same structural elements that provide reinforcement also serve as mounting platforms for noise control components, reducing the total number of parts and simplifying the overall structure.
2Strength
If reinforcing frames and related members are added to the housing structure, then the structural strength is improved, but the ease of manufacture deteriorates due to complicated structure
Solution Approach 1:
The reinforcing frames are designed as universal components that serve multiple functions: structural reinforcement, mounting support for sound-absorbing devices, and thermal management integration. This multi-functionality reduces the total component count and simplifies manufacturing processes.
Solution Approach 2:
The reinforcing frames are pre-assembled with mounting brackets and connection elements before being installed on the housing. This preliminary preparation simplifies the final assembly process and reduces manufacturing complexity on the production line.
3Object-affected harmful factors
If sound absorbing devices are added to reduce noise, then the noise level is reduced, but the device complexity increases
Solution Approach 1:
The sound-absorbing devices are merged with the existing reinforcing frame structures. The mounting brackets and support elements are integrated into the reinforcement design, so the noise control components utilize the same structural framework already present in the housing, avoiding additional complexity.
Solution Approach 2:
The sound-absorbing devices are designed as universal modules that can be installed on different housing sections using standardized mounting interfaces. This modularity allows for easy installation and maintenance while keeping the overall system complexity manageable.
4Object-affected harmful factors
If sound absorbing devices are mounted on the housing to reduce noise, then the noise level is reduced, but the ease of manufacture deteriorates
Solution Approach 1:
The sound-absorbing devices are pre-assembled with mounting brackets and fastening elements in a separate preparation stage. This preliminary assembly simplifies the final installation process on the housing, making the overall manufacturing process more efficient and easier to execute.
Solution Approach 2:
The sound-absorbing devices are segmented into modular units that can be independently manufactured and then assembled on the housing. This segmentation allows for specialized production of noise control components without disrupting the main housing manufacturing process, improving overall manufacturing ease.
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
This configuration significantly reduces noise disturbances, simplifies manufacturing and assembly, and lowers costs by providing a single-side or double-side sound-absorbing effect, minimizing environmental and worker disruptions.
Implementation Method 1
a sound absorbing material (64) mounted to the second side of each fixing frame and configured to inhibit and reduce resonant noise from the housing of the transformer body
Data Source
AI summary
A power transmission transformer (1) includes a transformer body (11). Each of two upper pipings (3) is connected between the transformer body (11) and one of two heat dissipators (2, 21) outside of the transformer body (11). Each of two lower pipings (4) is connected between the transformer body (11) and one of the heat dissipators (2, 21). A sound absorbing device (6, 61) is mounted between and spaced from one of two sidewalls of the transformer body (11) and one of the heat dissipators (2, 21). The sound absorbing device (6, 61) is fixed to one of the upper pipings (3) and one of the lower pipings (4). An outer wallboard (63) and a sound absorbing material (64) are respectively mounted to two sides of at least one fixing frame (62) of the sound absorbing device (6, 61).