Self-sealing air pressure adjusting balance lamp structure

By setting a protective shell and an oilcloth layer on the headlight body, and utilizing the thermal expansion and contraction properties of the oilcloth layer to regulate the air pressure difference, the problem of sealing and air pressure difference of the headlight in high humidity and high corrosion environments is solved, achieving a fully sealed air pressure balance and avoiding damage to the headlight and shortening of the lifespan of components.

CN224080036UActive Publication Date: 2026-04-03WUHU ANRUI OPTOELECTRONICS CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing vehicle lights pose a risk of gaseous water and acid/alkali gases flowing into the lamp in non-self-sealed conditions under high humidity and high corrosion environments. Furthermore, in self-sealed conditions, the pressure difference can lead to lamp damage or shortened component lifespan.

Method used

An installation port is set on the headlight body, a protective housing is installed, and an oilcloth layer is placed inside. The thermal expansion and contraction properties of the oilcloth layer are used to regulate the air pressure difference and achieve a fully sealed air pressure balance.

Benefits of technology

The system achieves full sealing of the headlights, avoiding damage to the lights caused by gas corrosion and pressure differences, extending the service life of components, and reducing the risk of damage to the oilcloth layer due to thermal expansion and contraction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile lamps, and relates to a self-sealing air pressure adjusting balance lamp structure. A mounting opening (203) is formed in the lamp body (2), a protective shell (3) is arranged at the position of the mounting opening (203), an oilcloth layer (4) is arranged in the protective shell (3), and the oilcloth layer (4) shields the inner ring of the protective shell (3). An opening end (305) is arranged on the inner side of the protective shell (3), a closed end (306) is arranged on the outer side of the protective shell (3), and the opening end (305) is aligned with a cavity (204) in the lamp body (2). The self-sealing air pressure adjusting balance lamp structure is simple in structure, the air pressure difference in the cavity of the balance lamp body is effectively adjusted, and the risk that the sealing performance or components of a lamp are damaged due to the air pressure difference in the lamp is eliminated.
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Citation Information

Patent Citations

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