Definition of interlocking, what does interlocking mean?

Interlock is an electrical control or mechanical operating mechanism term. For example, the two jog buttons of "on" and "off" of the same motor in electrical control should realize interlock control, that is, when one of the buttons is pressed, the other button must automatically disconnect the circuit, which can effectively prevent the two buttons from being energized at the same time and causing mechanical failure or personal injury accidents.

Similar interlock control mechanisms are used in certain situations in the machinery industry. The application of interlock in the motor is contactor interlock forward and reverse circuit, double interlock forward and reverse circuit, button interlock forward and reverse circuit.

Interlocking is the use of the auxiliary contact of a certain circuit between several circuits to control the coil circuit of the other party to maintain the state or limit the function. The general object is the control of other circuits.

After the contactor coil is energized, the normally open auxiliary contact of the contactor is used to keep the loop on, and the general purpose is to control the loop of the contactor.

If the normally open auxiliary contact is connected in parallel with the start button, when the start button is pressed, the contactor will act, the auxiliary contact will close, and the state will remain unchanged. If you release the start button again at this time, the contactor will not power off and open.

In addition to the parallel connection of the start button and the auxiliary contacts, a button should be connected in series to stop the operation. The micro switch selects the normally open contact to start and the normally closed contact to stop.

Interlocking refers to the use of the auxiliary contacts of a certain circuit between several circuits to control the coil circuits of the other party to maintain the state or limit the function. The general object is the control of other circuits.

Self-locking meaning: The phenomenon that the AC contactor always keeps the coil in an energized state through its own normally open auxiliary contact is called self-locking. This normally open auxiliary contact is called a self-locking contact.

After the contactor coil is energized, its own normally open auxiliary contact is used to keep the loop on, and the general object is to control its own circuit.

Interlock means that when two or more contactors cannot work at the same time, their normally closed contacts are connected in series to each other's circuits.

Electrician Knowledge: What Does Interlock Mean? The old electrician will teach you step by step, practical electrician technology!

The interlock in electrical control is mainly set to ensure the safe operation of electrical appliances. It is mainly interlocked by two electrical devices controlling each other.

Essence of electrical interlock: the normally closed electric shock of these two relays is connected to the coil control loop of the other relay. In this way, when one relay is energized, it is impossible to form a closed loop on the other relay coil. However, this can also be achieved with a mechanical linkage.

If the normally open auxiliary contact is connected in parallel with the start button, so that when the start button is pressed, the contactor acts, the auxiliary contact is closed, and the state is maintained, and then the start button is released, and the contactor will not be disconnected due to power loss.

The interlocking structure is as follows:

Then the first commonly used structure that I will introduce to you is called an interlocking structure.

Many children can easily fall over when they use blocks to build a wall. That's why the structure isn't strong. This interlocking structure is specifically designed for blocks and thin boards.

What is an interlocking structure, simply put, it is to use a building block to close the seams between two building blocks, then the structure will be strong, which is the function of the interlocking structure. Both blocks and sheets can be used in the building process, and the principle is the same.

02 Gear transmission.

As for the second common structure, it is related to gears. Many parents buy building blocks for their children**, and some of them may contain gears and other accessories.

Gears are a good thing! How to say, if something made from ordinary building blocks is stationary, then with gears, we can make something that can move.

How does it work?

First of all, we need to understand what gearing is.

To put it simply, gear transmission is two gear teeth biting their teeth, and when one gear moves, the other gear will also move. This is called gearing.

And they bite their teeth with their teeth, which is called gear meshing.

Different gears work together and they rotate at different speeds.

The rotation of the large gear with the small gear is called gear acceleration.

Conversely, if it is a pinion with a large gear turning, it is called gear reduction.

Interlocking, as the name suggests, is interlocking with each other. For example, for example, the forward and reverse circuit of the motor, the main circuit uses two contactors to realize the commutation of the motor, and the main circuit of the two contactors has an inverting wiring mode. If there is no interlock, if there is no interlock at this time, in the case of misoperation, the reverse button may be pressed, and at this time, the reverse contactor will be engaged, which will cause a short circuit accident.

To prevent this from happening, it is necessary to add a button interlock to the control loop or to interlock with the auxiliary contacts of the contactor.

There are two ways to interlock:

Method 1: The normally closed point of the reversal button is connected in series in the forward and rotating control loop to achieve interlocking. In this way, when the forward rotation is pressed, the control power supply of the forward rotation circuit will be disconnected first, and the forward rotation contactor will be released when the power loss is lost, and then the forward rotation contactor will be engaged, and the motor will be reversed.

In this case, there will be no short-circuit accidents.

Method 2: The normal closure point of the reverse contactor is connected in series in the forward and rotating control loop to achieve interlocking. In this way, when the forward rotation is pressed, the reverse button is pressed, the contactor will not act, and the stop button of the forward rotation circuit needs to be pressed first, and the forward rotation contactor is released when the power is lost, and then the reverse button is pressed, the reverse contactor is engaged, and the motor is reversed.

In this case, there will be no short-circuit accidents.

To sum up, the role of interlock is to prevent accidents caused by misoperation of personnel, and it is a control method to ensure the safe and stable operation of equipment.

What is the concept of interlock release: Interlock release refers to the phenomenon that the AC contactor always keeps the coil in an energized state through its own normally open auxiliary contact, which is called self-locking. This normally open auxiliary contact is called the shirt limb self-locking contact.

After the contactor coil is energized, the contact of its own normally open auxiliary air modification is used to keep the loop on, and the general object is the control of its own circuit. If the auxiliary contact is connected in parallel with the start button, when the start button is pressed, the contactor acts, the auxiliary contact is closed, and the state is maintained, and then the start button is released, and the contactor will not be disconnected due to power loss.

Summary. Hello, for your question What is interlocking and how to achieve interlocking Answer: Interlock generally appears in the forward and reverse control circuit, it is used to prevent short circuit When one contactor works, then the other contactor is in the link of protection, it can not work.

Some interlocks can be achieved by locking two contactors to each other by a mechanical lever, or by adding their own contacts to the coil of another contactor. Interlocks require at least two and they can affect each other. It can avoid a short circuit in the main circuit when two triggers are working at the same time.

Hello, for your question What is the answer to the question of how to achieve the interlock: The interlock generally appears in the forward and reverse control circuit, it is used to prevent short circuits When a contactor works, then the other contactor is in the protection link, and it can not work. Some interlocks can be achieved by mechanical levers that allow two contactors to be respectfully locked with each other, or by adding their own contacts to the coil of another contactor.

Interlocks require at least two and they can affect each other. It can avoid a short circuit in the main circuit when two triggers are working at the same time.

The conductive circuit consisting of metal wires and round parts of the electrical and electronic parts is called a circuit. Add a power supply to the input cavity of the circuit to generate a potential and attitude difference at the input end, and it can work when the circuit is connected.

The circuit can realize the transmission, distribution and conversion of electric energy, and can also realize the transmission and processing of signals.

Interlocking refers to the use of auxiliary contacts of a certain circuit between several circuits, and Sun Sanyuan to control the other party's coil circuit, and the state of the state is maintained or the function is limited. Realize the mutual constraints between different moving parts of production machinery or automatic production lines.