Installation steps for microswitches in detail
Step 1: Understand how the switch's external dimensions affect other characteristics
Size matters when choosing a microswitch. Switch size is directly related to its characteristics, including current range, travel and operating force. For example, one of the smallest microswitches on the market today measures 0.50 in. x 0.236 in. x 0.197 in. (LxWxH). While this tiny switch is suitable for use in compact circuit breakers to detect circuit status, it is typically capable of breaking only 0.1 to 3 amps (A) of current and has a short stroke.
Step 2: Consider Environmental Conditions
Environmental requirements can have a significant impact on the selection of a microswitch, especially in applications such as industrial controls, medical devices, and other applications that require high reliability and criticality. Understanding the environmental conditions of the application includes contaminants in the air that may enter the switch, the fluids the switch is exposed to, and the operating temperature requirements.
Step 3: Define Operating Life Requirements
Reliability of the switch is critical. You need to specify exactly how many electrical and mechanical operating lives are required for an application? Different switches have different contact materials, housings and terminals to meet the electrical and mechanical life requirements of different applications.
Step 4: Define the quality of operation required
A highly reliable microswitch can be operated 10 to 20 million times before mechanical failure, and 50,000 to 100,000 times under maximum load before electrical failure. As for the subtle price differences between different quality switches, you need to consider the total cost of use. Because you're not just paying for the switch, you're also paying for the assurance that the switch will operate trouble-free for a long time. In many cases, the extra cost of using a more reliable switch is offset by the lower cost of its warranty over the course of its use.
Introduction of microswitches
1, a wide range of microswitches, the internal structure of hundreds of kinds, according to the volume of ordinary, small, ultra-small; according to the performance of the protection of points, waterproof, dust-proof, explosion-proof; according to the form of breakage points, there is a single-connection type, double-connection type, more than one even type. There is also a strong disconnecting micro switch (when the switch reed does not work, the external force can also make the switch disconnect); according to the breaking capacity, there are ordinary, DC type, micro-current type, high-current type. According to the use of environmental points, there are ordinary type, high temperature type (250 ℃), ultra-high temperature ceramic type (400 ℃)
2, microswitches are generally unassisted pressing accessories for the basic type, and derived from a small stroke type, large stroke type. According to the need to join different auxiliary pressing accessories, according to join different pressing accessories switch can be divided into button type, reed roller type, lever roller type, short moving arm type, long moving arm type and other forms.
3, microswitch in the need for frequent switching circuit equipment for automatic control and safety protection, etc., widely used in electronic equipment, instruments, mines, electric power systems, household appliances, electrical equipment, as well as aerospace, aviation, ships, missiles, tanks, and other military fields, has been widely used in the above areas, the switch, although small, but plays an irreplaceable role.
Micro switch involved in the field has been too wide, it can be seen that it is a very high-tech products. The above is what I share with you about some of its knowledge, I hope you utilize it while thinking more. I am very happy to help you.