New Energy Vehicle Seat Test Anechoic Chamber
Technical Challenges
Seat adjustment motors, heating and ventilation systems, and other components must undergo acoustic testing in ultra-low background noise environments with a background noise level ≤ 25dB(A).
Solutions
Build a high-specification silent test chamber with multi-layer composite soundproofing, floating floor design, and ultra-quiet ventilation system.
Implementation Results
Background noise reduced to 23dB(A), meeting precise seat NVH testing requirements and significantly enhancing product acoustic quality.
Project Background
This new energy vehicle manufacturer prioritizes in-cabin comfort and requires precise testing of all acoustic performance metrics for its seat systems. Components such as seat adjustment motors, massage functions, and heating/ventilation systems generate subtle noise during operation that traditional test environments cannot accurately measure.
Technical Details
- Acoustic booth dimensions: 6m × 5m × 3.5m (internal clear dimensions)
- Wall structure: 3-layer 2mm steel plate + 150mm rock wool + acoustic wedge
- Sound Insulation Rating: ≥50 dB (A-weighted)
- Background noise: ≤23dB(A) (compliant with GB/T 6881 standard)
- Ventilation System: Ultra-low noise fan + multi-stage silencer, air changes ≥ 6 per hour
- Viewing Window: Four-layer hollow sound-insulating glass with light transmission ≥ 75%
- Floor Treatment: Suspended elastic flooring to isolate external vibrations.
Project Images
Customer Reviews
"The acoustic performance of this test soundproof booth exceeded our expectations, with background noise control reaching international advanced levels. We can now precisely measure the noise characteristics of individual seat components, providing reliable data support for product optimization."
—— Engineer Zhang - Head of Seat Engineering
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