In response to the needs of new round of high-speed railway construction, domestic manufacturers should avoid the connector to avoid patent protection, unified understanding of foreign technical standards. Overall, the locomotive connector should the following performance, research and development.

 

First,mechanical performance, vibration, shock, impact and degree of protection requirements more restrictive.

Second, electrical properties, there are high-voltage, high-current, module of integrated power and control system compatibility and so on.

Third, environmental resistance, high temperature, alternating hot and humid, low air pressure and other environmental (such as pollution) is more demanding.

 

Areas of current high-speed rail locomotive connector needs different specifications, various demand specifications are quite different. Introduction from the connector sources distinguish mainly Japan and Europe (mainly Germany and France), connectors, circular and rectangular shape structure consists mainly from technical standards for connecting to the main JIS and IEC standards

 

At present, the high-speed growing speed of the railways, locomotive connectors are increasingly demanding, high reliability connector became locomotive must be requested. Trains run during vibration is persistent, long-term vibration fatigue in this case, the locomotive connector must not occur any communication failures, never allow any transient fault, otherwise the consequences will be very serious.

 

Vibrations under such adverse conditions, locomotive connectors should satisfy the needs of day-to-day cloud put, without any mechanical failure. It will need to consider the various aspects of structural design and choice of materials.

 

In structural design, automobile connector contact elements to focus on locking structure design and structural design. On the structure design of locking, you have enough strength and toughness, have good structural design, it is necessary to ensure spin timely locomotive connector easily connect, to ensure there was enough loose screw together. The connectors on older locomotives, in order to prevent loosening, fuse, and the reliability is very high, but use and maintenance is not easy, is not feasible in a modern locomotive. Now the connector loosening-proof design, the structure must have a separate control on loose bodies, and locking the structure has sufficient protection to prevent damage, the choice of material, locking shrapnel generally opt for beryllium-bronze material, so as to guarantee the good fatigue resistance effect. Contact, first to ensure sufficient strength, contact form, be sure to use high contact reliability of structural form, in order to receive the effect of fatigue resistance and long service life. In terms of contact position, make sure you have good accuracy, prevent contact on the plug.