Overview of waterproof touch switch

 

Waterproof light touch switch is an electronic switch. When in use, the switch can be turned on by gently pressing the switch button. When the hand is released, the switch will be disconnected. The internal structure of the switch is realized by the spring of metal spring under force. Waterproof light touch switch: as the name suggests, it is a light touch switch that can be waterproof, but it has requirements for waterproof. It does not mean that once in the water, it does not affect its performance. The real waterproof effect is to achieve the waterproof effect of IP67 industrial grade, which can be called waterproof touch switch. IP67 now refers specifically to the mobile phone industry's protection security level IP abbreviation, which defines the protection capability of an interface against liquid and solid particles. IP is followed by two digits. The first is the protection level of solid state with the range of 0-6, which respectively represents the protection from large particles of foreign matters to dust; the second is the protection level of liquid, with the range of 0-8, which respectively represents the protection from vertical water drops to the bottom pressure. The larger the number, the stronger the representation. The interpretation of IP67 is to prevent dust inhalation (overall prevention of contact and dust penetration), and protection of short-term immersion (anti immersion).

 

At present, the highest level of IP67 is achieved in the cabling industry. In addition, the industrial connector also has temperature, vibration and other adverse environmental considerations. LED lighting, also known as semiconductor lighting or solid-state lighting, is made of light-emitting diode as the light source. Waterproof light touch switch LED driving power supply is used to drive LED lighting normal lighting power device. The core of light touch switch is led driver chip, and leaf switch is also called LED driving IC. Most of the early LED driving power supply adopts constant voltage mode, which has many problems. Main technical parameters: waterproof grade high contact internal a contact circular multipoint contact water resistance: temperature 60 ℃ time 24h maximum rating: 12V DC 50mA. Minimum rating: 1V DC 10uA. Contact resistance: 30m Ω max. insulation resistance: 100M Ω min. voltage proof: 250V AC (50-60Hz) for The material material pin can be copper silver plated or gold plated, and the shrapnel can be 100000 or one million times.

 

1、 For example, 2.5gb/s and 5.0gb/s wireless product connector, optical fiber connector, broadband connector and fine pitch connector (spacing of 1.27mm, 1.0mm, 0.8mm, 0.5mm, 0.4mm, 0.3mm) appeared in the market.

 

2、 In cylindrical slotted jack, elastic stranded wire pin and hyperboloid linear spring jack connector, the press fit contact technology is widely used, which greatly improves the reliability of the connector and ensures the high fidelity of signal transmission.

 

3、 Semiconductor chip technology is becoming the driving force of connector development in all levels of interconnection. For example, with the rapid development of chip packaging with 0.5mm spacing to 0.25mm spacing, the number of device pins in class I interconnection (internal IC device) and level II Interconnection (device board interconnection) has increased from hundreds to thousands.

 

4、 Blind distribution technology makes the connector a new connection product, namely push in connector, which is mainly used for system level interconnection. It has the advantages of no cable, simple installation and disassembly, convenient field replacement, fast insertion and closing speed, smooth and stable separation, and good high frequency characteristics, which is suitable for spacecraft.

 

5、 Assembly technology develops from plug-in installation technology (THT) to surface mount (SMT), and then to micro assembly (MPT). Active use of MEMS is the power source to improve connector technology and cost performance.

 

In terms of switches, switches will develop towards miniaturization, thinness, chip, composite, multi-function, high precision and long service life, and they need to continuously improve the comprehensive performance of heat resistance, cleaning, sealing and environmental resistance. They can be used in many other fields, such as CNC / potentiometer, etc. In addition, the development of new material technology is one of the important conditions to promote the technical level of electrical plug-in components. At present, there are the following key common technical problems in the key development products of China's electrical plug-in element industry: first, the application technology and research of new metal / non-metallic materials such as high elastic contact material, wire spring material, nano material, memory function material, environmental resistant engineering plastic, etc. can not keep up with the actual needs of production and manufacturing; second, new professional technology and micro processing And manufacturing technology, automatic comprehensive testing technology, reinforcement technology and experimental technology under special environmental conditions, structural optimization design technology, reliability design technology, hybrid structure design technology need to meet the requirements of electrical plug-in components with more and more complex structure, more powerful function and smaller volume.

 

Waterproof touch switch low-voltage rectifier filter circuit, after the high-frequency transformer step-down, the pulsating voltage should also use diodes and capacitors for rectification and filtering, and the capacitors used in the rectification part should not have too large AC impedance, otherwise, the high-frequency AC components cannot be filtered out. Therefore, the selected capacitance should not only have large capacity, but also have low AC resistance In addition, 1 or 2 large inductance coils with magnetic core can be seen, which can filter out high frequency AC components together with filter capacitor to ensure pure DC output.

 

1. P grade up to IP66, with Australian standard certification, anti-corrosion and waterproof switch socket is suitable for industrial environment.

 

2. Combinatorial free simplification