Products Description
The electric vehicle charging port sealing ring is a key component used to protect the charging port. Its core function is to prevent external contaminants such as moisture, dust, and corrosive substances from entering the charging port, thereby ensuring the safety and reliability of the charging process.
Features and Benefits
Waterproof and dustproof level up to IP67/IP68:
The electric vehicle charging port sealing ring adopts precision molding technology to ensure that the sealing ring fits tightly with the charging port, effectively isolates foreign objects from intrusion, and avoids the risk of short circuits and leakage caused by moisture or pollution.
Anti-aging formula:
Adding anti-ultraviolet, antioxidant, and other ingredients, it can withstand long-term sun exposure and ozone erosion, and the service life can reach more than 10 years, reducing the trouble and cost of frequent replacement.
Anti-compression permanent deformation design:
Under the mechanical pressure of repeated plugging and unplugging of the charging gun, the sealing ring can still rebound quickly to avoid sealing failure caused by deformation.
Food-grade Silicone/fluororubber material:
Passed RoHS, REACH, and other certifications, no heavy metals, no irritating volatiles, to ensure user health and environmental protection needs.
| Silicone | Property | Unit | Test Method | Test Parameter | Value |
| hardness | Shore A | ASTM D 2240 | 75±5 | ||
| tensile strength | kgf/cm2 | ASTM D 412 | 111 | ||
| ultimate elongation | % | ASTM D 412 | 410 | ||
| compression set | % | ASTM D 395 B | 24h / 175°C | 46.7 | |
| compression set | % | ASTM D 395 B | 24h / 23°C | 4.8 | |
| tear resistance | kgf/cm | ASTM D 624 B | 18 |
Practical application cases
Electric vehicle charging port sealing ring is not only used for vehicle charging port but also for charging pile interface:
1. "Antifreeze expert" in high-cold areas
A car company in Northern Europe uses wide-temperature Silicone sealing rings in -40℃ extreme cold models, and the charging interface maintains elasticity in low-temperature tests to avoid brittle cracking.
2. "All-weather guard" of public fast-charging piles
A charging station in a coastal city uses FKM sealing rings, which have been used continuously for 3 years without failure in a salt spray corrosion environment, and the failure rate has been reduced by 60%.
3. "Silent housekeeper" of home charging piles
A certain brand of home wall-mounted charging piles are equipped with silicone sealing rings. Users report that plugging and unplugging are smooth, and noiseless, and there is no water seepage in the rainy season.
Reasons for selection
Safety Certification Endorsement: Passed ISO 9001 quality management system, UL 94 V-0 flame retardant certification, some models meet the automotive-grade IATF 16949 standard.
Customized Service: Supports personalized adjustment of color, hardness, and size to meet the design requirements of special models.
Cost-effectiveness Advantage: The cost of a single piece is less than 5% of the total cost of the charging gun, but it can avoid more than 80% of the repair costs of interface failures.
Our Certificate
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