Systemic solutions
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Automobile Industry
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Low Noise Solution For Intake And Exhaust Systems
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Interior Product Performance Optimization And Cost Reduction Solutions
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Low Noise Solution For Hydrogen Fuel Cell System
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Low Noise Solution For Vehicle Electric Drive System
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Low Noise Solution For Vehicle Air Conditioning System
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Vehicle Damping Layout Optimization And Lightweight Solutions
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Aviation Industry
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Material Industry
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Other Industry
Low noise solution for vehicle air conditioning system
1. Background introduction
1.1 Introduction to vibration and noise problems in electric vehicle air conditioning systems
· Existing problems:
· Excessive noise in the cabin (high overall noise, high-frequency howling, etc.)
· Excessive low-frequency vibrations such as the steering wheel;
· Main noise and vibration sources:
· Electric air conditioning compressor radiation noise and vibration excitation;
· Centrifugal Fan radiated noise and aerodynamic noise generated by the piping system.
Electric compressor air conditioning system
electric compressor
Air conditioning box (including centrifugal fan)
Air supply duct
2. BOACH acoustic electric drive system low noise solution
2.1 BOACH acoustic source side noise suppression solution:
· Electric compressor noise optimization:
· Modal analysis/testing, vibration and noise analysis/testing, vibration and noise reduction plan formulation and verification ·
Fan noise optimization and performance matching:
· CFD pulsation analysis/testing, aerodynamic noise analysis/testing, reduction Noise plan formulation and verification
· Aerodynamic noise design and optimization of air distribution ducts:
· Air duct CFD pulsation analysis/testing, vehicle integration performance analysis/testing, noise reduction plan formulation and verification.
Electric compressor noise optimization
Impeller and volute noise optimization
Optimization of aerodynamic noise in gas distribution pipelines
2.2 BOACH acoustic transmission path side noise suppression solution:
· Vibration reduction design:
· Vibration isolation treatment of electric compressor;
· Air sound design:
· Design and development of electric compressor acoustic package;
· Pipeline noise suppression:
· Design, development and integration verification of Porous pipes for air conditioning gas distribution pipelines.
Compressor pipeline silencer and vibration isolation design
Acoustic package design and development
Gas distribution pipeline noise reduction design and development
2.3 BOACH acoustic air conditioning compressor and pipeline aerodynamic noise test bench solution:
· Provide customers with benches and laboratories needed for forward design and development of air-conditioning compressors:
· Laboratory: anechoic chamber construction;
· Testing system: cylinder pressure test, vibration and noise test, etc.;
· Provide aerodynamic noise test bench construction for low-pressure gas distribution pipelines.
Compressor vibration and noise testing system and semi-anechoic chamber
Compressor vibration and noise testing system and semi-anechoic chamber
Gas distribution pipeline aerodynamic noise test bench
3. Application cases of BOACH acoustic air conditioning system low noise solution:
· Vehicle air conditioning system vibration and noise service:
· BOACH Acoustics assisted electric compressor manufacturers in solving vibration and noise problems of many new energy electric vehicles;
An electric vehicle air conditioning compressor low-noise technical service case
· Laboratory and test system construction:
· Build an entire system test bench and laboratory for electric compressor manufacturers;
· The background noise of the semi-anechoic chamber is <15dBA, and it is measured by CNAS.
Compressor vibration and noise testing system and semi-anechoic chamber
Contact us
Phone：
Email：
Address：
Room 901, Building 1, Phase 2, Yungu Phase 2, Fengxi New Town, Xixian New District, Xixian New District, Xi'an City, Shaanxi Province
Room 307, Building 1, Harbin Institute of Technology Robot Industrial Park, No. 488 Qianjin East Road, Economic Development Zone, Kunshan City, Jiangsu Province
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