Waterproof micro switch selection considerations

The waterproof micro switch can be controlled with very little force, and the micro switch has a small shape, which allows the electrical appliances to work freely. Micro switches are often used in home appliances and electronic equipment. The life of micro switches is tens of thousands of times, or millions of times. Micro switches are widely used. Micro switches on small appliances can improve the ease of use of home appliances. Then, let's learn about the precautions for choosing waterproof micro switches!

Matters needing attention in selection of waterproof micro switch

1. Take off the outer frame of the switch and socket, and pinch it with your hands, it means that it is a good computer material if you don't need it. Such materials have good insulation and aging resistance. Intuitively, I think this kind of material will not turn yellow in the future.

2. To fix the switch socket on the wall, it needs to be fastened to its base with screws. The firmness of this base also affects the use of the switch panel. Now some brands use cold-rolled steel plates to make this base. Such things are more durable.

3. The quality of the switch socket module is very important. It is difficult to distinguish with the naked eye, but it can actually be judged from the details. First of all, generally the heavier the better the quality. In addition, there are screws behind the switch socket to fix the wire ends. The good ones should be pure copper, relatively large, but there are copper-plated and small screws in the switch socket. This indicates poor quality.

4. The socket should be purchased with safety protection. There is a limiter in the socket. Insert the two holes together before inserting. Please find the iron sheet. As long as it is inserted into a hole, it should not go in.

Working principle of waterproof micro switch

1. The external mechanical force exerts force on the working reed through the transmission elements (press pins, buttons, pull rods, rollers, etc.). The contacts make or break quickly.

2. After the force on the actuator is eliminated, the action reed generates a reverse action force. After the reverse stroke of the actuator reaches the critical point of the action of the reed, the reverse action is completed instantaneously.

3. The distance between the contacts of the waterproof micro switch is small, the action stroke is short, the pressing force is small, and the on-off is fast. The action speed of its movable contact has nothing to do with the action speed of the transmission element.

4. There are many types of waterproof micro switches, with hundreds of internal structures. According to different volumes, there are ordinary, small, and ultra-small; according to different protection performances, there are waterproof, dustproof, and explosion-proof types; according to different division forms , There are single type, double type and multi-type.

5. Another micro switch for strong shut-off (when the switch reed fails, the switch can also be shut off by external force); the breaking capacity is divided into conventional type, DC type, small current type, and large current type.

6. Waterproof micro switches are generally based on the basic type without auxiliary pressing accessories, and are derived from small-stroke type and large-stroke type. Auxiliary pressing auxiliary tools can be added according to needs, and according to the added pressing auxiliary tool switches, it can be divided into various forms such as button type, guide roller type, rod roller type, short boom type, and long boom type. I believe that after reading today's article, you will have a comprehensive understanding of micro switches. Micro switches are widely used in the electronics industry and are very good switching devices.