What is the waterproof rating standard for new energy vehicles?
1 Answers
New energy vehicles typically adhere to the IP67 waterproof rating standard for normal operation. Below are the detailed explanations: 1. Waterproofing: In China, key components such as the motor, battery, and electronic control system use waterproof and breathable products like Puwei waterproof breathable valves and membranes to address waterproofing, explosion-proofing, and related issues. Puwei waterproof breathable products offer the following benefits: waterproofing, dustproofing, and a protection level up to IP68; resistance to chemicals, high and low temperatures, and aging, enhancing reliability in harsh environments; prevention of condensation and fogging, extending product lifespan; micro heat dissipation and pressure balance, improving product integrity. 2. Rating: The main components of electric vehicles consist of the motor, battery, and electronic control system. Consumers often worry about potential leakage or short circuits in high-voltage components like the battery and motor when submerged in water. Automotive engineers address this concern by ensuring many electric vehicles meet the IP67 protection level. This rating indicates protection safety levels, where the first digit after 'IP' represents solid particle protection, and the second digit represents liquid ingress protection. An IP67 rating means the components can withstand immersion in one meter of water for 30 minutes without issues. Note that this one-meter depth refers to the water level over the electronic devices, simulating a scenario where the vehicle is entirely submerged. Since electronic devices lack moving parts, achieving waterproof protection is significantly easier compared to mechanical equipment.
