Based on in-depth understanding of Porous waterproof membrane and acoustical science, as well as our accumulated years of acoustical experience, SST-Porous®AV-00 series & products suitable for immersion applications not only provide reliable protection against particulate , liquid, dirt and water, but also have excellent acoustical properties.
Today’s portable electronic devices (such as mobile phones, wearable devices, headphones, smartwatches, Bluetooth speakers, smart speakers, walkie-talkies), these portable products are often used in some harsh environments, such as rainy days, swimming pools, underwater sports, skiing, mountaineering, running and other harsh environments.
The use of these portable products in such harsh environments presents challenges to the structure of the microphone (where the acoustics are received) and the speaker (where the sound is produced) : splashing of dust, pollutants and particles, erosion by sweat, and immersion of fresh and sea water.
These challenges often result in water flooding and blockage of the microphone or speaker, and the increasing number and weight of the microphone will prevent the speaker from producing high pressure level sound, degrading the acoustic quality. Although the IP6X protection level can effectively protect the particulate matter, but the protection of haze, smoke, tobacco smoke and dust size less than 10μm, especially the particles between 1-10μm (the common particle size range in the application environment of mobile electronic equipment), it is difficult to effectively protect;
Smart wearable devices for underwater sports are often required to be waterproof performance up to 3ATM (30 meters waterproof), 5ATM (50 meters waterproof) or even 10ATM (100 meters waterproof).
In order to realize the waterproof, breathable and dustproof tuyere of smart phones and smart wearable devices and the clear & high-quality acoustic quality of microphone, more stringent requirements are put forward for the protection level and waterproof requirements of speakers and microphones.
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Technical requirement |
Smart phone waterproof acoustic permeable (breathable) membrane |
① IP rate:IPX7,IPX8(Waterproof depth ≤2.5 m)② Microphone protection (sound penetration) : maintain excellent sound penetration effect, and have excellent waterproof effect③ Air vent (breathable) : meet the protection level of IPX7,IPX8, while maintaining excellent breathable effect |
Smart watch waterproof acoustic permeable (breathable) membrane |
① IP rate:IPX7,IPX8(Waterproof depth≤50m,5ATM)② Microphone protection (sound penetration) : The acoustic hole needs to be maintained due to high water resistance, while not allowing significant changes to the acoustic quality③ Air vent (breathable) : The air vent should ensure high water pressure resistance, while having a certain breathable effect |
—SST声学透气产品采用了膨体聚四氟乙烯 (ePTFE),在有效阻隔水、其它液体和颗粒物的同时,可实现出色的空气流动和声音传输。
—SST所提供的卓越的透气解决方案,能够平衡不同挑战之间的利弊。
—SST产品尺寸精密,颜色多样,能够满足您各种规格需求。
—SST防水透气产品的安装流程简单、可靠,可通过手动或自动方式进行,大大节约了开发时间。
SST-Porous ® acoustic Vents适用于浸没的防水透声透气产品 |
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智能手机声学部位
(Mic,Spk) |
智能手机通风口 | 智能手表声学部位
(Mic,Spk) |
智能手表通风口 |
防水等级 |
IPX7,IPX8*1 |
IPX7,IPX8*2 |
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声音损耗@1kHz |
≤2dB*2 | – | ≤3dB*2 |
– |
透气量, ml/cm2/min@70mbar |
– | 10000 | – |
150 |
耐水压 KPa, 50s |
30 | – | 500 |
– |
透声膜厚度,μm |
10 | 100 | 10 | 250 |
透声(透气)膜类别 | e-PTFE(无基材) | e-PTFE/Nonwoven | e-PTFE(无基材) |
e-PTFE/Nonwoven |
透声膜表面特性 |
疏油 | |||
颜色 |
白色 |
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环保 |
符合Rosh, Reach, Free PFOA |
E-mail:weitaiyan@spider-amoy.com
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