The interface air gap means that there is an air gap at the insertion interface of the plug and socket, the connection part of the connector contact and the wire is not completely fitted. Air gaps in these components can easily lead to connector breakdown, affecting the high voltage performance of industrial connectors.
In order to eliminate the existence of interface air gaps, manufacturers generally take the following measures when designing high-voltage connectors:
(1) Soft insulating material is used at the insertion interface to ensure that the air gap is filled while the insertion is in place.
(2) The insulation outside the jack contacts is in the form of molding, filling the gaps outside the contacts.
(3) The mating surface of the plug and socket adopts a tapered structure.
(4) After the connector is connected to the wire, part of the wire insulation extends into the connector housing insulation.
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