There are many types of micro switches, and there are hundreds of internal structures. According to the volume, there are ordinary, small, and ultra-small; according to the protection performance, there are waterproof, dust-proof, and explosion-proof types; according to the breaking form, there are Single type, double type, multi-link type. There is also a strong disconnect micro switch (when the reed of the switch does not work, the external force can also make the switch disconnect); according to the breaking capacity, there are ordinary type, DC type, micro-current type, and high-current type. According to the use environment, there are ordinary type, high temperature resistant type (250 ℃), super high temperature resistant ceramic type (400 ℃). Today, Ou Gao Electronics will introduce to you several commonly used micro switch products, including model parameters and pictures.
Introduction of various models of micro switches
1, Subminiature Micro Switch
Use temperature: -25℃~85℃
Mechanical life: 100,000 times
Use temperature: -25℃~85℃
Mechanical life: 100,000 times
Contact Resistance: 100 mΩ MAX.
Insulation resistance: 100 MΩ MIN.
Electrical life: 100,000 times
Insulation resistance: 100 MΩ MIN.
Electrical life: 100,000 times
2, Washing Machine Waterproof Micro Switch< /strong>
Electrical life: 100,000 times
Contact resistance: 100 mΩ MAX.
Insulation resistance: 100 MΩ MIN.
Waterproof grade: IP67
Contact resistance: 100 mΩ MAX.
Insulation resistance: 100 MΩ MIN.
Waterproof grade: IP67
<span style="font-siz Dongguan Ou Gao Electronics Co., Ltd. is a professional company dedicated to high-quality electronic electrical switches and sockets. The company has accumulated many years of rich marketing experience and Has many mature high-quality products. Switch products include: small micro switches, micro detection switches, waterproof micro switches, large micro switches, etc. Micro switches are used for automatic control and safety protection in equipment that requires frequent switching of circuits.
Micro switch is small, but it plays an irreplaceable role in our daily life, and realizes automatic control and safety protection in equipment that requires frequent circuit switching. At present, it has been widely used in electronic equipment, instrumentation, mining, power systems, household appliances, as well as aerospace, aviation, missiles, tanks and other military fields. In addition, they can also be used in computer mice, car mice, automotive electronic products, communication equipment, military products, as well as test instruments, gas water heaters, gas stoves, small household appliances, microwave ovens, rice cookers, floating ball equipment, building automation, Power tools and general electrical and radio equipment.
Introduction of various models of micro switches
1, high current bent foot microswitch
Mechanical life : 1 million times
Electrical life : 10000 times
Specifications: L19.8*W6.4*H10.7
Features: High-precision shrapnel structure to achieve fast switching, long life, and excellent touch.
Uses: Suitable for mouse, security, computer, communication products, household appliances, intelligent transportation, etc.
Electrical life : 100,000 times
Specification: L14.7*W5.4*H22.7
Features: High-precision shrapnel structure to achieve fast switching, long life, and excellent touch.
Usage: Applicable to automobiles, instruments, household appliances, intelligent transportation and other fields.
< /span>5, water heater microswitch strong>
Electrical life: 10000 times
Operating temperature: -25℃~85℃
Mechanical life: 1 million times
Specification: L19.8*W6.4*H10.7Operating temperature: -25℃~85℃
Mechanical life: 1 million times
Features: Configure various shapes of drive handles and various operating forces for product structure design.
purpose: Applicable to mouse, security, computer, communication products, household appliances, intelligent transportation, etc.
Features
1. Ultra-small, lightweight and high-precision.
2. M2mm type with general purpose screws can be used.
3. Using the structure of forming the terminal and the base distance at the same time, the solder, the auxiliaryIt is difficult for flux to penetrate inside the switch.
4. A low-power circuit type (Au clad contact) suitable for small voltage and current loads is also available.
5. Self-standing type terminal, easy to install on the printed board. The switch body is independent with respect to the printed board of 1.2~1.6mm.
6. There are also a series of right-angled and left-angled printed board terminals.
7. Compliant with RoHS directive.
Micro switch daily use problems
1. What is the reason for the poor contact of the micro switch? How to deal with it?
The first possibility is that dust adheres to metal sheets, switch contacts, etc. It is recommended to use sealed electric switches. The second is to suffer from the harm of malignant gases in the environment, resulting in the formation of an insulating covering film on the surface of the contacts. It is recommended to use a good adaptability to the environment. contact material (gold, alloy, etc.) of the switch.
2. What's the matter if the load does not turn on even if the micro switch is pressed?
There are several reasons for this problem. The first may be due to poor contact, the second may be that the contacts are melted, the third may be that the internal spring is damaged, the fourth may be that the operating speed is different, and the fifth may be the actual operation. The frequency is not the same, and the sixth is likely to adhere to waste and dust. The specific reason needs to be investigated.
3. What is the reason for the aging and burning of the insulation of the micro switch? How to prevent it?
1. The reason for the aging and burning of the micro switch is mainly because the capacity of the load is too large, which causes the electric isolation and the contact to fly around. This situation can be avoided by using relays and contactors to switch loads. Second, the high humidity causes a strong change in the surrounding temperature, resulting in the infiltration of water droplets. lead to carbonization of the insulation. In this case, minimize the long-term exposure of the micro switch in a humid environment, or choose a sealed switch.
