Knowledge of connectors (1)
First, what is the connector:
Generally refers to an electrical connector, that is, an original that connects two active devices to transmit current or signals.
Why use a connector?
Imagine what would happen if there were no connectors? At this time, the circuits are permanently connected together by continuous conductors. For example, the electronic device is to be connected to the power supply, and both ends of the connecting wires must be fixedly fastened to the electronic device and the power source by some method (for example, soldering). In this way, both production and use bring a lot of inconvenience.
Take the car battery as an example. Assuming that the battery cable is fixedly soldered to the battery, the car manufacturer adds workload to the battery installation, increasing production time and cost. When the battery is damaged and needs to be replaced, the car must be sent to the repair station, the old one is removed from the weld, and the new one is welded. This requires more labor. With the connector, you can get rid of a lot of trouble, buy a new battery from the store, disconnect the connector, remove the old battery, install a new battery, and reconnect the connector. This simple example illustrates the benefits of a connector. It makes design and production processes easier and more flexible, reducing production and maintenance costs.
The cost of the connector varies depending on the price of the material, the ease of processing, and the efficiency of the production.
The connector material mainly contains insulator material (plastic material), and the conductor material (phosphorus copper, brass) commonly used insulator materials are as follows:
1. Nylon 66: good toughness, high moisture absorption rate, poor dimensional stability, easy to warp shape, can not withstand high temperature. Commonly used in DIP type connector manufacturing, divided into UL 94V-0 (milky white) and divided into UL 94V-2 ( Translucent color) 2 grades, which can be added to glass fiber to improve mechanical properties and shape warpage.
2. PBT: High strength, abrasion resistance, low moisture absorption rate, high temperature resistance. Commonly used in DIP type connector manufacturing. Fiberglass can be added to improve mechanical properties.
3. Nylon 46: Good toughness, good molding fluidity, second only to LCP, high moisture absorption rate, poor dimensional stability, high temperature resistance. Can be used in SMT type connectors. It is easy to foam after IR absorption.
4. Nylon 6T: high temperature resistance, high strength, low water absorption, good dimensional stability. Suitable for SMT type connectors.
5. Nylon 9T: High temperature resistance, high strength, water absorption lower than Nylon 6T, good dimensional stability and poor toughness, suitable for SMT type connectors.
Conductor material
1. Brass: Copper-zinc alloy, high conductivity (26%), but the elasticity is poor, the appearance is yellow. According to the different copper content, it is divided into different grades, such as C2600, C2680 (JIS model). Each model is also divided into different hardness grades, such as 1/2H, H, EH, SH. Commonly used for PIN pins, grounding strips, etc.
2. Phosphor bronze: copper-tin alloy, low conductivity (13%), but the elasticity is better, the appearance is red. According to the different copper content, it is divided into different grades, such as C5195, C5210 (JIS model). Each model is also divided into different hardness grades, such as 1/2H, H, EH, SH. Commonly used for terminals with shrapnel, such as various wire terminals.
Generally refers to an electrical connector, that is, an original that connects two active devices to transmit current or signals.
Why use a connector?
Imagine what would happen if there were no connectors? At this time, the circuits are permanently connected together by continuous conductors. For example, the electronic device is to be connected to the power supply, and both ends of the connecting wires must be fixedly fastened to the electronic device and the power source by some method (for example, soldering). In this way, both production and use bring a lot of inconvenience.
Second, the material of the connector
The choice of materials is based on the comprehensive consideration of processing formability, product applicability and strength properties.The cost of the connector varies depending on the price of the material, the ease of processing, and the efficiency of the production.
The connector material mainly contains insulator material (plastic material), and the conductor material (phosphorus copper, brass) commonly used insulator materials are as follows:
1. Nylon 66: good toughness, high moisture absorption rate, poor dimensional stability, easy to warp shape, can not withstand high temperature. Commonly used in DIP type connector manufacturing, divided into UL 94V-0 (milky white) and divided into UL 94V-2 ( Translucent color) 2 grades, which can be added to glass fiber to improve mechanical properties and shape warpage.
2. PBT: High strength, abrasion resistance, low moisture absorption rate, high temperature resistance. Commonly used in DIP type connector manufacturing. Fiberglass can be added to improve mechanical properties.
3. Nylon 46: Good toughness, good molding fluidity, second only to LCP, high moisture absorption rate, poor dimensional stability, high temperature resistance. Can be used in SMT type connectors. It is easy to foam after IR absorption.
4. Nylon 6T: high temperature resistance, high strength, low water absorption, good dimensional stability. Suitable for SMT type connectors.
5. Nylon 9T: High temperature resistance, high strength, water absorption lower than Nylon 6T, good dimensional stability and poor toughness, suitable for SMT type connectors.
6. LCP: High temperature resistance, high strength, high fluidity, good dimensional stability, and poor bonding strength. Suitable for long, thin and small SMT connectors.
1. Brass: Copper-zinc alloy, high conductivity (26%), but the elasticity is poor, the appearance is yellow. According to the different copper content, it is divided into different grades, such as C2600, C2680 (JIS model). Each model is also divided into different hardness grades, such as 1/2H, H, EH, SH. Commonly used for PIN pins, grounding strips, etc.
2. Phosphor bronze: copper-tin alloy, low conductivity (13%), but the elasticity is better, the appearance is red. According to the different copper content, it is divided into different grades, such as C5195, C5210 (JIS model). Each model is also divided into different hardness grades, such as 1/2H, H, EH, SH. Commonly used for terminals with shrapnel, such as various wire terminals.
3. Beryllium copper: It has the advantages of the above two kinds of alloy copper, high conductivity (40%), good elasticity, but expensive, less used in the connector.
The above is a superficial view of Konnra Electronics. You are welcome to participate in the additional discussion. Subsequent will continue to update the knowledge of the connectors, thank you for your review.
评论
发表评论