Connectors have a wide range of functions, and most electronic devices require connectors to work properly. It can be seen that the role and significance of the connector are so great. In order to improve everyone's understanding of electronic connectors, this article will explain the structure of electronic connectors.
I. Introduction
Connector, namely CONNECTOR. Also known as connectors, plugs and sockets in China. Generally refers to electrical connectors. That is, a device that connects two active devices, carrying current or a signal.
Connector is a part that our electronic engineering technicians often touch. Its function is very simple: it sets up a bridge of communication between the blocked or isolated circuits in the circuit, so that the current flows and the circuit achieves the predetermined function. Connectors are an indispensable part of electronic equipment, and you will always find one or more connectors along the path of current flow. The form and structure of connectors are ever-changing, and there are various forms of connectors with different application objects, frequencies, power, and application environments.
For example, the connector used to light a light on a golf course is very different from the connector of a hard drive, and the connector used to light a rocket. But no matter what kind of connector, it is necessary to ensure that the current flows smoothly, continuously and reliably. In general terms, what the connector connects is not limited to current. With the rapid development of optoelectronic technology today, in the optical fiber system, the carrier of the signal is light, glass and plastic replace the wires in the ordinary circuit, but the optical signal Connectors are also used in pathways, and they serve the same purpose as circuit connectors.
Second, the structure principle of B2512SCN2.5 connector
Automotive connectors are a component that our electronic engineering technicians often come into contact with. Its function is to set up a bridge of communication between the blocked or isolated circuits in the circuit, so that the current can flow and the circuit can realize the predetermined function. The form and structure of automotive connectors are ever-changing. They are mainly composed of four basic structural components, namely: contacts, shells (depending on the variety), insulators, and accessories.
A. The contact piece is the core part of the automobile connector to complete the electrical connection function. Generally, a contact pair is composed of a male contact piece and a female contact piece, and the electrical connection is completed by the insertion of the female contact piece and the male contact piece.
The male contact is a rigid part, and its shape is cylindrical (round pin), square column (square pin) or flat (insert). The male contacts are generally made of brass and phosphor bronze.
The female contact is the jack, which is the key part of the contact pair. It relies on the elastic structure to elastically deform when it is inserted into the pin to generate elastic force to form close contact with the male contact to complete the connection. There are many types of jack structures, including cylindrical type (splitting, shrinking), tuning fork type, cantilever beam type (longitudinal slotting), folding type (longitudinal slotting, figure 9), box type (square jack) And hyperboloid wire spring jacks, etc.;
B. The shell is the outer cover of the automobile connector, which provides mechanical protection for the built-in insulating mounting plate and pins, and provides the alignment of the plug and socket when they are inserted, thereby fixing the connector to the device;
C. The insulator is also often referred to as the base or insert of the automobile connector. Its function is to arrange the contacts according to the required position and spacing, and to ensure the contact between the contacts and the contact and the shell. insulating properties between. Good insulation, with combined screw at both ends.
3. Several factors affecting the stability of automotive connectors
1. Connector insertion force: below 20.5kg. The connector holding force is more than 2.5kg. Heat resistance 40~120℃.
2. The material of the connector contacts is stable and reliable. Positive force is stable.
3. The voltage and current of the circuit are stable. The temperature is required to be within the specified range, including the surrounding temperature and its own temperature rise.
4. Better robustness. Must be the same as the connectors used in high-speed long-distance communication computers, automotive connectors must be able to work reliably under harsh conditions.
