Performance indicators of hv connectors for new energy vehicles

The new energy vehicle high-voltage connector is a mechatronics product, which is mainly composed of four parts: contacts, insulators, shells and accessories. Among them: the contact piece is the core component of the connector to complete the optical and electrical signal connection, and the connection of the optical and electrical signals required by the vehicle in driving is completed through the insertion of the contact piece; the insulator and the shell mainly play the role of fixing, insulation and mechanical protection. . The manufacturing process integrates multiple technologies such as electrical performance design, CNC machining, stamping technology, plastic pressing technology, precision die-casting technology, and strict testing methods.

After more than ten years of live application of vehicle loading, Saichuan Electronics has accumulated rich experience in customized supporting of automotive electrical connection systems. In terms of new energy vehicles, our products have undergone strict laboratory and road running tests for complete vehicles. Maintains stable, reliable and durable performance during operation;

Since the quality and accuracy of high-voltage connector products directly affect the electrical, mechanical, environmental and other performance of the connector, and thus affect the driving safety of electric vehicles, the quality requirements and manufacturing accuracy of high-voltage connectors are relatively high, which belongs to the additional field of connectors. High-value mid-to-high-end products.

The performance indicators of high-voltage connector for new energy vehicles are as follows:

1. Mechanical properties: The main performance factors are the plug-in force and mechanical life; the plug-in force and mechanical life of the connector and the contact structure (positive pressure), the direct current (sliding friction coefficient) of the contact part coating and the dimensional accuracy of the contact arrangement ( alignment) related to

2. Electrical performance: The main performance factors are contact resistance, insulation resistance, and electrical strength; high-quality electrical connectors with contact resistance should have low and stable contact resistance, and the contact resistance of the connector ranges from a few milliohms to tens of milliohms. Insulation resistance is an indicator of the insulation performance between the contacts of the electrical connector and between the contacts and the shell, and its order of magnitude ranges from hundreds of megohms to several gigaohms; the electrical strength is a characteristic of the connector contacts. The ability to withstand the rated test voltage from time to time or between the contact and the enclosure.

3. Environmental performance: The main performance factors are humidity resistance, temperature resistance, smoke resistance, vibration resistance and shock resistance; the temperature range is -65~200℃. Moisture and smoke resistance can protect its metal to ensure physical and electrical properties; resistance to vibration and shock is particularly important in special application environments such as aviation and aerospace, railway and road transportation; other environmental properties are based on usage requirements. Other environmental properties include sealing, liquid immersion, low air pressure, etc.

Saichuan Electronics provides supporting solutions for the following 6 types of vehicle industries:

üNew energy vehicle high voltage connection system

üHigh-end commercial bus electrical connection system

üTruck electrical connection system

üRV electrical connection system

üElectrical connection system for construction machinery and vehicles

üElectrical connection system for sanitation and other special vehicles Energy storage field