The respirator combines the waterproof and breathable membrane with other materials such as plastic, metal, and silica gel through injection molding, ultrasonic welding, etc. to form a sealable mounting member. There are mainly threaded, snap-on and other Pu micro respirators. The main performance indicators of the respirator are two indicators of air permeability and protection level!
Respirators, also known as Pu micro waterproof breathable valves, waterproof screws, etc., are combined with other materials such as plastic, metal, silica gel, etc. by injection molding, ultrasonic welding, etc. This product is firm and convenient to install. Jacket high temperature silicone O-ring. The membrane and the outer shell are combined by a special process, and have the characteristics of stable performance, simple installation, long use time, high dustproof, waterproof and breathable performance. As shown below:
Function: 1, waterproof, dustproof, anti-oil, protection level reaches IP6K9K. 2. Prevent condensation and fogging and improve product life. 3, heat dissipation and balance pressure difference. Improve product integrity. 4, chemical resistance, high temperature resistance, anti-aging, etc., to improve the reliability of the product in harsh environments. Principle: The waterproof and breathable membrane inside the Pu micro-respirator is very small in the state of water vapor. According to the principle of capillary movement, it can smoothly penetrate into the capillary to the other side, so that vapor permeability occurs. When the water vapor condenses into water droplets, the particles become larger. Due to the surface tension of the water droplets (water molecules collide with each other), the water molecules cannot smoothly escape from the water droplets and penetrate into the other side, that is, prevent them. The penetration of water occurs, making the vapor permeable membrane waterproof. So that the respirator achieves waterproof and breathable effect! As shown below
Application industry: Pu micro respirator for sensors, LED outdoor lighting and control boxes, road lights, high pole lights, garden lights, landscape lights, LED tree lights, lawn lights, wall lights, wall lights, underground lights, spotlights ( Spotlights ). Underwater lights, outdoor electronics, battery packs, solar equipment, home electronics, portable electronics, telecommunications equipment and tools, disk drive filters, pharmaceuticals, automotive electronics and other industries. As shown below:
The Piezoelectric Ceramic sound-generating element, especially a lead-free piezoelectric ceramic sound-generating element, is mainly composed of metal flakes and piezoelectric ceramic flakes. The sound pressure generated by this new structure piezoelectric sounder is proportional to the number of piezoelectric ceramic sheets. By increasing the number of piezoelectric ceramic sheets, the required large sound pressure is easily achieved.
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Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com