How do I troubleshoot electrical performance when a connector fails?

At present, the application of electronic connectors in life has become more and more widely used, due to the small size of such devices, the design is more sophisticated, in use, but also often appear in all kinds of situations, for some common failures, we also need to do a good job of analyzing the corresponding analysis, when the failure occurs, what should we do.

Connector failure one: poor contact. From the structure above, the connector inside the metal conductor is the core parts of the overall equipment, is used to connect the external wire or cable electric pressure or current, data signals are equal to its interplay, and transfer to the connector contact parts with each other above, so the connector design must be required above the automotive connector to do the structure of the structure of the fine, to have a very reliable stability and good Conductive properties, because this situation often occurs, there are many reasons, may be due to the connector contact parts are not designed reasonably, the material selection above the problem, or the processing of the size is not in line with the design requirements, rough or installation method is not right, etc., will cause the connector and equipment with the connection between the bad, so in the event of an electronic device failure when the first problem to be considered is the contact problem! So the first problem to consider when the electronic device failure is the contact problem, be sure to check all the connectors, the connection is tight and then consider other problems, if not the internal connection of the problem, through a simple dialing and inserting operation can be repaired to the automotive connector is very good. In addition, pay attention to the use of the process of protection of the connector, this is also very important, sometimes poor contact is because we usually do not protect the improper, resulting in localized damage to the connector or corrosion, this situation caused by poor contact is generally difficult to repair, the need to replace the connector to deal with, not only is the trouble, or a waste of resources and economic loss. Connector failure two: poor insulation. This is also mainly said to be the impact of the external environment, generally this situation will be unstable performance, the phenomenon of leakage is even more terrible, will cause the use of insecurity, more intuitively can be observed, new energy automotive connectors but encountered such a problem must stop the connector's work, and direct replacement of the new. Electrical properties of the connector. The main electrical properties include contact resistance, insulation resistance and electrical strength. (1) contact resistance: high-quality electrical connectors should have a low and stable contact resistance, the contact resistance of the connector from a few milliohms to tens of milliohms. (2) insulation resistance: a measure of the electrical connector between the contact parts and contact parts and the shell of the insulation between the indicators, the order of magnitude of hundreds of megohms to thousands of megohms. (3) resistance (voltage): characterize the connector between the contacts or contacts and shells between the ability to withstand the rated test voltage.

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