Transformers/Inductances Noise Damping TRIZ Cases
- Grain-Oriented Steel Sheet Stress Control for Low Iron Loss and Noise
Laser heating creates a steep through-thickness temperature gradient to refine magnetic domains while limiting stress that raises noise.
- Laminated Wound Core Joint Layout for Transformer Noise Reduction
Joint portions placed in flat regions of a laminated wound core help suppress transformer noise while reducing strain.
- Transformer Core Clamping Structure for Vibration Load Resistance
An elongate clamping structure stiffens the transformer core column, raising resonance frequency to reduce vibration stress and deformation.
- Wound Core Bent-Section Stacking for Lower Noise and Iron Loss
Higher stacking factor at key bent portions and compression of steel sheets cut magnetostriction noise and iron loss in wound cores.
- Wound Core Lamination With Dense Bent Portions for Low Noise
Selective compression raises stacking factor at wound-core bends, cutting magnetostriction noise and iron loss while stabilizing the magnetic field.
- Grain-Oriented Electrical Steel Domain Refinement for Low Iron Loss and Noise
Selective magnetic domain refinement lines cut iron loss in grain-oriented electrical steel while limiting magnetostriction change and noise.
- Asymmetric Traction Reactor Core for Lower Train Noise
Asymmetric air gaps and core joints shift a traction reactor from a high-noise monopole mode to a quieter dipole mode in trains.
- Adhesive Insulation Coating for Electrical Steel Lamination Accuracy
Controlled coating damping improves punching, lamination accuracy, adhesive strength, and noise behavior in laminated motor cores.
- Transformer Iron Core Step-Lap Joints for Low No-Load Noise
Inclined step-lap joints and localized insulating adhesive smooth magnetic flux at transformer core couplings, cutting no-load loss and noise.
- Transformer Winding Stiffness Asymmetry for Noise Reduction
Varying winding stiffness shifts transformer vibration modes from symmetric to asymmetric, lowering acoustic power at the main frequency.
- Grain-Oriented Steel Coating for Low-Noise Transformer Cores
A crystalline phosphate insulating film maintains 10 MPa+ tension at 100-200°C to suppress magnetostriction and transformer noise.
- Transformer Core Clamping Structure for Vibration Stress Reduction
An elongate clamping member inside the core column raises resonance frequency and lowers vibration stress to reduce fatigue and cracking.
- Gapless Core Reactor Flux Management via Counter-Series Windings
Counter-series windings on a gapless magnetic core generate equal and opposing fluxes to prevent saturation without air gaps.
- Transformer Noise Suppression Using Adaptive BP Neural Network
A transformer noise suppression method uses a BP neural network to generate secondary noise signals that cancel initial acoustic interference.
- Segmented Acoustic Panels for Transformer Noise Reduction
Segmented mineral wool panels dampen transformer tank vibrations, reducing noise by up to 70% while preserving inspection access.
- Liquid-Cooled Transformer Noise Reduction via Hermetic Sandwich Panels
Hermetically sealed sandwich panels with high-density polymer filler attach to transformer tanks.
- Noise Current Absorber Holder With Elastic Resin Springs
Resin springs replace metal components in the holder, preventing radiation noise antennas while maintaining stable capacitive coupling.
- Transformer Iron Core Pressing Bar Noise Reduction
Segmented pressing bars concentrate fastening forces in the stacking direction to reduce air gaps and vibrations in transformer iron cores.