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Application characteristics of high voltage connector products for electric vehicles

Application characteristics of high voltage connector products for electric vehicles

(Summary description)Pure electric vehicles and plug-in hybrid vehicles generally adopt a high voltage of more than 300V and a large current of hundreds of amps. The high-voltage circuit is the key component of the high-voltage electrical system of the whole vehicle. As the connection of each functional module of the whole vehicle and an important part of the high-voltage circuit, the accurate design, analysis and selection of high-voltage connector products are of great significance for electric vehicles.

Application characteristics of high voltage connector products for electric vehicles

(Summary description)Pure electric vehicles and plug-in hybrid vehicles generally adopt a high voltage of more than 300V and a large current of hundreds of amps. The high-voltage circuit is the key component of the high-voltage electrical system of the whole vehicle. As the connection of each functional module of the whole vehicle and an important part of the high-voltage circuit, the accurate design, analysis and selection of high-voltage connector products are of great significance for electric vehicles.

Information

Pure electric vehicles and plug-in hybrid vehicles generally adopt a high voltage of more than 300V and a large current of hundreds of amps. The high-voltage circuit is the key component of the high-voltage electrical system of the whole vehicle. As the connection of each functional module of the whole vehicle and an important part of the high-voltage circuit, the accurate design, analysis and selection of high-voltage connector products are of great significance for electric vehicles.

High voltage connector product is a functional element that connects and disconnects the circuit with the help of electrical signal or mechanical force. It is composed of fixed end electrical connector (hereinafter referred to as socket) and free end electrical connector (hereinafter referred to as plug).

The service performance of high-voltage connector products is quite different from that of low-voltage connectors. High voltage connector products have high requirements on electrical performance, mechanical performance and environmental performance. It mainly includes the following aspects:

Electrical performance includes working voltage, rated current, contact resistance of inner conductor and outer conductor, characteristic impedance, voltage standing wave ratio, shielding performance and anti-interference performance. The rated voltage of the connector must be greater than the peak voltage of the equipment,

Mechanical energy mainly includes vibration and shock, mechanical life, single hole separation and total separation force. Generally, it will evaluate the service times of the product, whether the connection and locking mode are reliable, etc. As an infrequently disassembled part, the high-voltage connector in the vehicle can be plugged and unplugged more than 50 times to judge whether the mechanical life of the connector meets the requirements.

The high-voltage connector product is a plastic shell high-voltage connector specially developed for the internal high-voltage connection system of electric vehicles and hybrid electric vehicles. The product has excellent shielding performance and IP protection. This series of connectors includes three arrangements of 1 + 2 / 2 + 2 / 3 + 2, with two plug connection modes of straight head and elbow.

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