What is a high voltage connector?

High voltage Connectors refer to connectors with AC voltage above 1000V or DC voltage above 1500V. They are mainly used in complete vehicles, charging facilities, industrial equipment, medical equipment, etc.
Electric vehicles have very strict requirements on connector performance. High plugging and unplugging times, current carrying capacity, CTI value, flame retardant performance and vibration resistance are key factors that enterprises need to consider in product development. The power demand of electric drive units of new energy vehicles continues to increase. Higher requirements are put forward for operating current and voltage. The traditional connection voltage is around 14V, while the voltage of electric vehicle high voltage connectors reaches 400-600V.
The sealing performance of high voltage connectors generally requires at least IP67, and even IP6K9K is required when selecting models for some special occasions in automobiles to ensure that the use requirements can be met even during high pressure flushing.
Since new energy vehicles use a large amount of power electronic equipment, the electromagnetic field generated by high voltage and large current will cause electromagnetic interference to other communication equipment. The entire vehicle and its components must have anti interference and anti radiation capabilities.
When designing a high voltage electrical connection system, it is required that the connector has a 360° shielding layer and is effectively connected to the cable shielding layer, covering the entire length of the connector to ensure adequate shielding function and minimize the resistance between the shielding interfaces . The shield connection contact resistance is less than 10mΩ during its lifetime.
High voltage connectors for new energy vehicles require the use of new materials that are resistant to high temperatures and high pressures. They are also higher than traditional automotive connectors in terms of sealing, shielding and waterproofing, and have higher requirements for flame retardancy and CTI value, so the cost is higher than that of general Industrial connectors. Most of the high voltage connectors on the market currently use high performance PBT, PA, etc.
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