When developing the new generation of charging port covers, BYD encountered the following challenges: 

High safety requirements: It is necessary to have multiple safety protection functions such as overcurrent protection, overvoltage protection, and leakage protection to ensure the safety and reliability during use. 

Adaptability to complex environments: The charging port cover needs to be able to withstand extreme temperatures (-40℃ to 85℃), humidity, salt fog, vibration, and other harsh conditions to ensure long-term stable operation. 

Longevity requirement: As a frequently used body component, it needs to have a closing and opening life of more than 100,000 times to reduce maintenance costs and enhance the user experience.

Solution:

Zing Ear Group leveraged its technical expertise in microswitches to tailor the G10B series microswitches for BYD's new generation of charging port covers.

High precision and reliability: Advanced contact materials and structural design ensure precise and reliable switching actions, effectively preventing accidental activation and poor contact issues.

Multiple safety protections: Built-in safety mechanisms such as overcurrent protection and overvoltage protection can promptly cut off power in abnormal situations, ensuring charging safety.

Excellent environmental adaptability: Passed rigorous waterproof, dustproof, and high/low-temperature resistance tests, ensuring stable operation in various harsh environments.

Long-life design: Passed stringent tests including salt spray testing (500 hours), high/low-temperature cycling (-40°C to 85°C), and mechanical vibration testing.

Zing Ear Group's microswitch G10B has been successfully applied in the charging port cover systems of BYD models such as the Seal and Han EV, delivering the following benefits:

Enhanced safety: No reported cases of pinching or water ingress failures.

Improved user experience: Sensitive opening/closing feedback and support for remote status display via the app.

Reduced after-sales costs: Failure rate below 0.1%, significantly reducing warranty replacement requirements.

Looking ahead:

Zing Ear Group will continue to uphold its business philosophy of “customer-centric, quality-driven survival, and innovation-driven development,” continuously increasing R&D investment to enhance product technical standards and quality. The company aims to provide safer, more reliable, and high-performance microswitch products and solutions for new energy vehicle enterprises like BYD, jointly driving the development of the new energy vehicle industry.