A breathable device, drying device and vehicle light

By incorporating a duckbill valve and a dustproof and waterproof device into the headlights, the problem of moisture entering the ventilation system was solved, extending the life of the desiccant and improving the lighting effect and stability of the headlights.

CN224352833UActive Publication Date: 2026-06-12LYNWAY VISION TECH (NB) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LYNWAY VISION TECH (NB) CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In the process of venting moisture and balancing pressure, existing ventilation devices can easily allow moisture in the air to enter the headlights, which reduces the lifespan of the desiccant and affects the headlight's lighting performance.

⚗Method used

Design a ventilation device that uses a duckbill valve and a dustproof and waterproof device. The duckbill valve opens when the headlights are on to release high-temperature and high-humidity gas, and closes when the headlights are on to prevent external gas from entering. The dustproof and waterproof device absorbs dust and moisture. Elastic silicone material and sponge material are used to improve sealing and ventilation efficiency.

🎯Benefits of technology

It extends the lifespan of the desiccant, reduces fogging, improves the lighting effect of the headlights, enhances the stability and durability of the ventilation device, and reduces the impact of airflow on the internal components of the headlights.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of ventilation device, drying device and car light, ventilation device is located on car light main body, ventilation device includes: duckbill valve, duckbill valve is equipped with containing space, duckbill valve is equipped with opening;Dustproof waterproof device, dustproof waterproof device is located in containing space;Among them, when the air pressure of the first end of ventilation device is less than or equal to the air pressure of the second end opposite to the first end, opening is closed;When the air pressure of the second end is less than the air pressure of the first end, opening is opened.The technical problem solved by the utility model is that the current ventilation device is usually provided with a flow channel to discharge water vapor and balance pressure, and water vapor in the air is easy to enter the interior of the car light from the flow channel, thereby reducing the service life of the drying agent and affecting the lighting effect of the car light.
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