In-depth analysis of the structure and advantages of electronic connectors
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An electrical connector, also known as a circuit connector, is a conductor device that bridges two conductors on a circuit so that current or signals can flow from one conductor to the other. An electronic connector is a motor system that provides a separable interface to connect two sub-electronic systems. Simply put, the components used to complete the electrical connection between circuits or electronic machines are called connectors, or the bridge between the two.
An electronic connector is also often called a circuit connector, electrical connector, a conductor device that bridges two conductors on a circuit so that current or signals can flow from one conductor to the other. It is used in a wide variety of electrical circuits and serves to connect or disconnect currents or signals. This connection may be temporary and easy to plug at any time, or may be a permanent junction between electrical equipment or wires.
Electronic connectors are devices that transmit electronic signals (analog signals or digital signals), can provide a separate interface to connect two sub-electronic systems, is used to complete the electrical connection between circuits or electronic machines and other components of the electrical connection. Such as: power plugs / sockets, IC feet, telephone line plugs, etc. are. Widely used in the electronics industry.
Electronic connector is a motor system, which can provide a separable interface to connect two sub-electronic systems, simply put, the components used to complete the electrical connection between the circuit or electronic equipment, etc. are called connectors, that is, the bridge between the two.
Barrier type electronic connectors
Electronic can be used as the electrical/electronic transmission connection between circuits, components, and systems, so that power, signal, and current can flow stably and reliably, and facilitate product assembly, maintenance, and replacement.
Mainly contains three major aspects.
1. mechanical testing;
2. Environmental testing;
3. Electrical testing.
1, according to the soldering method is divided into: DIP class (eg: PCI 120P), SMT class (eg: MINI PCI EXPRESS)
2, according to the appearance can be divided into: external type and internal type
(1) External type are
I/O: D-subminiature connector (also known as D-SUB connector), USB, 1394, DDR, VGA, SCSI, etc.
CARD: SD, SIM, NEW CARD, etc.
JACK: RJ11, RJ45, etc. RF
Power supply
Others: SCSI, DVI, etc.
(2)Internal type are
Board-to-board
Wire to board
Wire-to-wire
Flexible Printed Circuit Board (FPC): ZIF
HDD:BOX,PIN-Header&Socket
Edge Card:AGP,PCI
CPC Socket:478,SLOT-1,SLOT-2
Memory:DIM,SO-DIM
Electronic Connectors
Others:MINI PCI
The choice of materials is based on processing formability, product applicability and strength properties of a comprehensive consideration; electronic connector cost by the price of materials, processing difficulties and production efficiency and differences; electronic connector materials mainly contain insulator materials (plastic materials), conductor materials (phosphor bronze, brass); electronic connectors commonly used engineering plastic materials are: LCP, NYLON, PBT.
LCP
Has a small coefficient of linear expansion, injection molding shrinkage rate is low and very outstanding strength and modulus of elasticity and excellent heat resistance, with high load deflection temperature, some can be as high as 340 degrees above, LCP also has chemical resistance and excellent airtightness, so the general connector especially the need for SMT are preferred LCP material, eg: MINI PCI EXPRESS; DDR.
NYLON
Lower cost, high tensile strength, outstanding wear resistance and self-slip, good fluidity, conducive to thin-walled molding, but shrinkage is serious, easy to produce hairy, molding before baking strictly to prevent hydrolysis, general connectors, especially DIP most of the NYLON material, eg: PCI 120P; PCI EXPRESS.
PBT
Plug-in electronic connectors
Low cost, high strength, friction resistance, but poor molding, shrinkage is serious, due to the melting temperature is low, over the wave soldering will produce plastic melting phenomenon.
Development trend
1. Miniaturization
Small volume, light weight, small Pitch, reduced height, high density/high Pin number.
2.High frequency signal/transmission
Low contact group resistance, low effect, good signal masking effect, signal delay, Crosstalk .... etc.
3.Automated operation
Reduced workstation process, Auto Pick & Place, Type, product accuracy improvement, maintenance method.
4.User-friendly interface
User-friendly operation, anti-dumbing design.
5.Low cost of use
Standardization of products, flexible product and process design, compressed delivery time.
Related news
Mechanical parameters of electrical connectors
Contact pressure in the connector is an important indicator, which directly affects the size of the contact resistance and the amount of wear on the contact pair. In most structures, direct measurement of contact pressure is quite difficult.
Requirements for electrical parameters of electrical connectors
The connector is an electromechanical component that connects electrical circuits. Therefore, the electrical parameters of the connector itself is the first thing to consider when choosing a connector.
In-depth analysis of the structure and advantages of electronic connectors
An electrical connector, also known as a circuit connector, is a conductor device that bridges two conductors on a circuit so that current or signals can flow from one conductor to the other. An electronic connector is a motor system that provides a separable interface to connect two sub-electronic systems. Simply put
Connector is a part of our electronic engineers and technicians often contact. Its role is very simple: in the circuit is blocked or isolated between the circuit, bridging the communication, so that the current flow, so that the circuit to achieve the intended function.
Introduction of connector standards
A standard is a unified provision made for repetitive things and concepts. It is based on the comprehensive results of science, technology and practical experience, approved by consensus of the parties concerned and published in a specific form by the competent authority as a guideline and basis for common compliance.
Classification of connectors and naming
As connectors become increasingly diverse and new structures and applications emerge, attempts to solve the classification and naming problem with a fixed model have become difficult to accommodate. Nevertheless, some basic classifications are still valid.
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