How to choose industrial connectors? How to distinguish connectors?

Industrial connector is an indispensable and important accessory for modern industry, which is also known as aviation plug and aviation plug because of its wide application in aerospace field. Because of its high versatility, diverse model specifications and mature technology, the connector has been successfully applied in various fields such as intelligent manufacturing, aerospace, high-speed rail, automation technology, rail transportation, 5G communication and so on. Industrial connectors can be categorized into circular connectors, miniature connectors, small connectors according to their shape, and power connectors, data transmission connectors, connectors for medical equipment, automation technology connectors, etc. according to their industrial use.

-I. How to choose industrial connectors? The structural dimensions of the connector: the external dimensions are very important, the connection in the product have certain space limitations, especially the connector on the single board, can not interfere with other parts. Should be based on the use of space, installation parts to choose the appropriate installation. Connector shielding performance: With the development of communication products, EMC is increasingly being attached importance to the choice of connectors need to have a metal shell, while the cable needs to have a shielding layer, the shielding layer should be connected to the metal shell of the connector to achieve the shielding effect, but also can be used injection molding method, the plug part with copper skin package, the shielding layer of the cable and the copper skin welded together. Connector anti-wrong plug design: anti-wrong plug has two aspects: on the one hand, the connector itself, the connector itself rotates 180 degrees resulting in signal misconnection, at this time it is necessary to pay attention to as far as possible to choose the anti-wrong plug connector, or by adjusting the relative position of the connector relationship so that the assembly; on the other hand, in order to reduce the type of material considerations, several signals are using the same connector, at this time there may be a plug into the A plug to the B plug! On the other hand, in order to reduce the variety of materials, several signals use the same connector, then there may be plug A to plug B, then you need to pay attention to this situation will cause serious consequences. Connector impedance: Some signals have impedance requirements, especially RF signals, the impedance matching requirements are more stringent, impedance mismatch will cause signal reflection, thus affecting signal transmission. General signal transmission on the impedance of the connector has no special requirements; connector connector reliability: the connector is used to connect the signal, so the connection part should be reliable. Use of connector environment: outdoor, indoor, high temperature, high humidity, salt spray, mold, cold and other environments when using the connector, the connector has special requirements. Connector versatility: in the process of selecting the connector should be as far as possible to choose a common object, especially between the same series of products, the choice of connectors has a strong generality, so that you can reduce the types of materials, reduce costs, while reducing the risk of supply; connectors have a locking function: in order to prevent the connector to match the problem of falling off, the need for connectors with a locking function in order to protect the good contact. Connector is available in harsh environments: now there are many harsh environments, connector design is more common in harsh environments special connector types are also many, this we can choose according to the actual needs of, among them, high temperature, high humidity, corrosion-resistant, salt-resistant environments have finished products to choose from. Connector brand: the main quality of the connector are reflected in the internal structure and design of the product, especially the line, which can not be seen with the naked eye, so when acquiring must remember to look at the brand and the appearance of a good request for warranty.

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