With the vigorous development of the new energy industry, energy storage connectors, charging gun connectors and related connectors for electric vehicles have become hot spots in the electrical connector industry. Now let's introduce the UL certification standards and testing items for new energy connectors.

1. Energy storage connector

Energy storage connectors are mainly used for connecting energy storage batteries and batteries, batteries and battery packs, to ensure the safe transmission and storage of electric energy.

2. UL certification standards

-UL4128

3. UL test items

-Hardness test: Evaluate the hardness of the connector material to ensure its durability.

-Injection stress release test: Detect whether the stress generated during the injection molding process is within an acceptable range.

-Conductor firmness test: Ensure the firmness of the conductor in the connector to avoid loosening during use.

-Rubber tensile strength test: Evaluate the tensile strength of rubber parts to ensure its stability during use.

-Accelerated aging test: Simulate long-term use environment to detect the aging resistance of the connector.

-Low temperature test: Detect the performance stability of the connector in a low temperature environment.

-Temperature rise test: Evaluate the temperature rise of the connector during operation to ensure safety.

-Current cycle test: Evaluate the durability of the connector through repeated current cycle tests.

-Withstand voltage test: Detect the tolerance of the connector in a high-voltage environment.

- Pulse high voltage test: Through pulse high voltage test, the insulation performance and anti-interference ability of the connector are evaluated.

2. Charging gun connector

The charging gun connector is mainly used for electric vehicles in indoor or outdoor non-hazardous places as plugs, sockets, vehicle jacks and connectors of conductive connection systems.

2. UL certification standards

- UL2251

3. UL test items

- Pull-out force test: Detect the force required to pull out the connector to ensure its convenience and safety.

- Short circuit test: Evaluate the safety of the connector under short circuit conditions.

- Overload test: Through overload test, detect the tolerance of the connector under overload conditions.

- Temperature rise test: Evaluate the temperature rise of the connector during operation to ensure safety.

- Anti-arc test: Detect the anti-interference ability of the connector in an arc environment.

- Thermal cycle test: Evaluate the durability of the connector through repeated thermal cycle tests.

- Misalignment test: Evaluate the safety and stability of the connector under misalignment.

- Life test: Evaluate the service life of the connector by simulating a long-term use environment.

- Ground current test: Detect the ground current of the connector to ensure its safety.

- Car tire squeeze test: Evaluate the durability of the connector by simulating car tire squeeze.