Electromagnetic relay, as a key electrical control device, realizes the automatic control of the circuit through the electromagnetic effect, and its principle and function are deeply valued and applied in the field of industrial and household electronics.
Relay Information Network will introduce the working principle, components and wide application scenarios of electromagnetic relays.
Electromagnetic relays consist of a control system (input loop) and a controlled system (output loop).
When the control system is energized, an electromagnetic field is generated inside the coil to attract the iron core and control the closing and disclosing of the contacts, so as to realize the on-off switching of the circuit. The contacts are divided into two states, normally open and normally closed, and switch between power-on and power-off, respectively.
Electromagnets: The part of the coil that is responsible for generating the magnetic field.
Armature: Connected to a circuit when the contact is closed by an electromagnetic force.
Springs: Used to control the opening and closing action of the contacts.
Contacts: The circuit is connected in the closed state, the normally open contacts are closed when the power is off, and the normally closed contacts are closed when the power is on.
Safety and securityElectromagnetic relays can control high-voltage and high-current circuits with low voltage and weak current, effectively preventing the danger caused by personnel contacting high-voltage circuits.
Remote control and automation: Users can realize remote control of the working circuit through electromagnetic relays, and realize automatic control with the help of current changes, so as to improve production efficiency.
Alarm device applicationAutomatic temperature alarm, water level display, automatic boiler pressure alarm, etc., the use of electromagnetic relay to achieve monitoring and alarm of environmental parameters to ensure the safety of production and life.
Burglar alarm system: Through the opening and closing state of the pedal contact, the control of the burglar alarm is realized to ensure safety and property.
Electromagnetic relays are widely used in many industries such as aviation, aerospace, ships, and home appliances, and undertake key tasks such as signal transmission, execution control, and system power distribution.
The functions of automatic control and remote control of electromagnetic relays provide important support for the automated production and intelligent life of modern society.
Hotspot Engine Program With its reliable working principle and flexible application, electromagnetic relays play an irreplaceable role in the field of electrical control.
It plays a vital role in maintaining safety, improving production efficiency, and enabling remote control, and is an indispensable and important part of modern electronic systems.
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