There are many types of button switches, including ordinary button type, mushroom head type, self-locking type, self resetting type, rotary handle type, indicator type, symbol type with light and key type. There are single button, double button, I button and different combination forms. Generally, it adopts ponding structure, which is composed of button cap, return spring, static contact, moving contact and shell. It is usually made into composite type, with a pair of normally closed contacts and normally open contacts. Some products can increase the number of contacts through the series connection of multiple elements. There is also aself-contained button, which can automatically maintain the closed position after being pressed, and can only be opened after power failure.
When the button switch is not pressed, the moving contact is connected with the fixed contact above, which is called normally closed contact. At this time, the moving contact is disconnected from the static contact below. This pair of contacts is called normally open contact: press the button, the normally closed contact is disconnected and the normally open contact is closed; Release the button to restore the original working state under the action of the return spring.
(1) Protective button(push button switch): a button with protective shell, which can prevent the internal button parts from mechanical damage or people from touching the live part. Its code is h. (2) Dynamic off button(push button switch): under normal conditions, the switch contact is a button for on. (3) Dynamic closing button(push button switch): under normal […]
Push button light switches are usually safe under normal use conditions. The following analyzes their safety from multiple angles and provides relevant suggestions: 1. Safety analysis Design and structure: Mechanical structure: Push button switches usually use springs or lever mechanisms to open and close, and the design avoids the risk of electric shock. Its shell is mostly made […]
Working Principle of Proximity Switch Sensors Proximity switch sensors, as efficient non-contact detection devices, operate based on sensing specific properties of objects. These sensors can be broadly categorized into several types: inductive, capacitive, and magnetic, each designed for different environments and object properties. 1.Inductive Proximity Switch Sensors 2.Capacitive Proximity Switch Sensors The unique working mechanisms […]
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