Connectors also known as plugs and sockets in the market, usually refer to electrical connectors,which connect two active devices and transmit current or signals.
After the matching male contacts and the female contacts, the pair connector can transmit information or current, now it has become an indispensable part of electronic equipment. According to different usage scenarios and different applications, connectors are also divided into various types. So, what kinds of common connectors are there, and what are the specific classifications? Let's take a look together.
In fact, there is no fixed classification of connectors, but in actual use, people usually classify them according to their use, shape, structure and performance for better classification and management.
1. Divide according to shape
If divided according to shape, connectors are divided into five types: circular connectors, rectangular connectors, strip connectors, curved connectors and D-type connectors, among which circular connectors and rectangular connectors are the most common!
2. According to the use of environmental conditions
According to the use of environmental conditions, it is mainly divided into sealed connectors, radiation-resistant connectors, high-temperature connectors, low-temperature connectors, automatic shedding and separation electrical connectors, etc.
3. According to the electrical requirements
According to its electrical requirements, it can be divided into ordinary connectors, high-power connectors, high-voltage connectors, pulse connectors, low-noise connectors, noise filter connectors, low-frequency connectors, high-frequency connectors, phase modulation connectors and precision connectors. coaxial connectors, etc.
4. According to the structure division
Divided according to different structures, connectors are divided into threaded connectors, straight-in connectors, plug connectors, push-pull connectors and bayonet connectors.
5. According to the terminal connection form of the contact piece
According to the termination form of the contact, it can be divided into crimp connectors, solder connectors, wrapping connectors, surface mount connectors, etc. Note that this classification method is only applicable to electrical connectors.
6. According to the special structure division
According to the special structure division, connectors can be divided into meta-plug-force connectors, rubber connectors, rotary connectors, bifurcated connectors and fiber optic connectors.
7. According to the level of interconnection
According to the function of internal and external connections of electronic equipment, the electrical interconnection can be divided into five levels which are the internal connection of the chip package, the connection between IC package contact and PCB, connection between printed circuit and wires or PCB, connection between backplane to backplane, and device-to-device connections.
8. According to the type of connector
In the connector industry, there are two ways to confirm product model naming.
One is to add numbers to the letter code, trying to reflect the main structural features of the product in part number. The advantage of this method is that it is easy to identify, but number is too long and too complicated. With the miniaturization of connectors, it brings many difficulties to printing. At present, this method is still popular in China.
In foreign countries, it is more like to use the combination of Arabic numerals. The advantage of this method is that it is simple and convenient for computer management and logo printing of small products. This method is currently adopted by major international connector manufacturers.
9. According to the purpose of use
If divided according to the purpose of use, connectors are divided into mobile phone connectors, power connectors, high-voltage connectors, automotive connectors, aviation connectors, high-speed signal connectors, optical fiber connectors, etc.
The above are the common types of connectors at present. In fact, there are many types of connectors, and there is no fixed classification. The above classifications are mainly easy to identify and manage, and there are basically no major differences in terms of functions and properties.
