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, Ningbo Jialin Electronics Co.,
Ltd.has been widely used in the above fields. Although the switch is small, it
plays an irreplaceable role.
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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