A relay socket is a small tool used to control the on and off of a circuit, which allows the relay to be easily installed and replaced. The relay socket ensures that the relay can work properly by providing a stable electrical connection.
The working principle of the relay is based on the phenomenon of electromagnetic induction. When the coil of the relay is energized, a magnetic field is generated, which attracts the iron core and causes the contacts to move. The movement of the contacts then controls the on and off of the circuit to achieve the purpose of electrical control. The core components of the relay include the coil, the iron core and the contacts. The coil is the source of the magnetic field, the iron core is the medium for transmitting magnetic force, and the contacts are the key to executing the on and off of the circuit.
Relay sockets are usually designed with jacks or slots that match the relay pins, so that the relay can be easily inserted or removed. When installing, just align the pins of the relay with the jacks of the socket and gently press or insert it. The socket will provide a stable electrical connection inside to ensure a reliable connection between the relay and the circuit.
When you need to control a circuit, you only need to energize or de-energize the coil of the relay. When the coil is energized, the magnetic field generated will attract the iron core, causing the contacts to close, thereby connecting the circuit; when the coil is de-energized, the magnetic field disappears, the iron core resets under the action of the spring, the contacts are disconnected, and the circuit is disconnected. The relay socket is responsible for providing a stable power connection and signal transmission channel for the relay.
The relay socket can also provide certain protection and isolation functions. For example, it can prevent problems such as short circuits or poor contact between relay pins. At the same time, the relay socket can also isolate the relay from other parts of the circuit, reducing the impact of electromagnetic interference and noise on the operation of the relay.
Taking the control of an AC load as an example, cut the live wire of the equipment, expose two wire ends, and connect them to the normally open and common ends of the relay socket respectively. When the coil of the relay is energized, the common end is closed with the normally open contact, current flows through the controlled electrical appliance, and the electrical appliance starts to work; when the coil is de-energized, the common end is disconnected from the normally open contact, current stops flowing through the controlled electrical appliance, and the electrical appliance stops working.