Types of micro switches. Micro switch classification. Micro switch series. Micro switch introduction. Micro switch recommended. Micro switch preferred. Micro switch channel
First, the micro switch is a kind of quick change switch for pressure actuation. Because the contact distance of the switch is relatively small, the name micro switch is also called sensitive switch.
Second, the type of micro switch:
a. There are many types of micro-switches, there are hundreds of internal structures, which are divided into ordinary type, small size and ultra-small according to volume; according to protective performance, there are waterproof type, dustproof type and explosion-proof type; There are single type, double type, and multiple type. At present, there is also a strong disconnect micro switch; according to the breaking capacity, there are common type, DC type, micro current type, large current type. According to the use environment, there are common type, high temperature resistant type (250 ° C), super high temperature resistant ceramic type (400 ° C)
b. The micro switch is generally based on the non-assisted press attachment, and derives a small stroke type and a large stroke type. Different auxiliary pressing accessories can be added as needed. According to different pressing accessories, the button can be divided into button type, reed roller type, lever roller type, short moving arm type and long moving arm type.
c. Micro-switches are used for automatic control and safety protection in equipment that requires frequent circuit switching. They are widely used in electronic equipment, instrumentation, mining, power systems, household appliances, electrical equipment, as well as aerospace, aviation, ships, In the military field such as missiles and tanks, Wuxi Innovation Switching Electric Appliance Co., Ltd. has been widely used in the above fields. Although the switch is small, it plays an irreplaceable role.
d. At present, the micro-switches on the domestic market vary from 3W to 1000W depending on the requirements of use. Generally, there are 10W, 20W, 50W, 100W, 300W, 500W, and 800W times. Generally, beryllium bronze, tin bronze, and stainless steel wire are used as reeds. The foreign ALPS can be achieved up to 1000W times, and their reeds are made of rare metal titanium.
Third, the working principle of the micro switch is:
The external mechanical force acts on the action reed by the transmission element. When the action reed is displaced to the critical point, an instantaneous action is generated, so that the movable contact at the end of the action reed and the fixed contact are quickly turned on or off.
· When the force on the transmission element is removed, the action reed generates a reverse action force, and when the reverse stroke of the transmission element reaches the critical point of action of the reed, the reverse action is instantaneously completed. The micro switch has a small contact pitch, a short stroke, a small power, and a fast switching. The speed of the moving contact is independent of the speed of the transmission element.
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