Imagine what would happen if there was no connector. In this case, a continuous conductor is connected permanently between the circuits. For example, the electronic device is connected to the power supply, and the ends of the connecting wires must be fixed to the electronic device and power through a certain method (such as welding).
In this way, both production and use have brought a lot of inconvenience. Take car batteries for example. Assuming that the battery cable is fixed and welded to the battery, the automobile factory increases the workload for installing batteries, and increases the production time and cost. When battery damage needs to be replaced, it is also necessary to send the car to the repair station, dismantle and remove the old ones, and then weld the new ones. With a connector, you can save a lot of trouble, buy a new battery from the store, disconnect the connector, dismantle the old battery, install the new battery, and reconnect the connector.
This simple example illustrates the benefits of connectors. It makes the design and production process more convenient and flexible, and reduces the cost of production and maintenance.