开关触摸振动噪声测试与控制研究

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中图分类号：U463.69 文献标识码：A 文章编号：1003-8639（2026）01-0093-03

Research on Testingand Control ofVibration Noise of Switch Touch o Weiwei， Zhang Daijin， Zhu Weihao，Zheng Zhongwen，LiFan，You Dandan，Zhang Shunting （Zhejiang Changjiang Automotive Electronics Co.，Ltd.，Wenzhou 325O25， China）

【Abstract】To explore the noise characteristics and noise source patterns of touch panels under diffrent working conditions，amulti-channel noise testplatform basedonananechoic chamber was established.Byadjusting the vibration excitationparametersandcolecting theacousticsignalsofthetouch panels，the noisecharacteristicanalysisof thepanels wascompleted.Theresultsshow thatwhenthevoltageof the exciter rises，theamplitudeof thecoresponding vibration soundintensityincreasessynchronously.Afterthepanelis installdonthebench，thesystemnoiselevel issignificantly amplified，showing a distinct nonlinear trend，and the peak noise frequency migrates to the low-frequencyband.By dynamicallyadjusting thefrequencyof the exciter toavoid the structural resonancefrequency，the noiseoutput after installation can be effectively suppressed.

【Key words 】touch vibration; noise testing;modal frequency; sound pressure; experimental analysi：

0 引言

随着车载技术的不断发展，越来越多的机械开关被智能内饰件取代。（剩余2462字）