Automobile trunk lid

By using PP composite material and PU structural adhesive combined with a sealant design, the problems of heavy weight and difficulty in controlling the thickness of structural adhesive in traditional luggage compartment lids are solved, achieving high connection strength and sealing performance of the luggage compartment lid, and ensuring product quality and reliability.

CN224090291UActive Publication Date: 2026-04-07YANFENG PLASTIC OMNIUM SHANGHAI AUTOMOTIVE EXTERIOR SYST CO
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Patent Information

Application Number
CN202520752945.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-04-07
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

In existing technologies, traditional sheet metal luggage compartment covers or tailgates are heavy, have complex molding processes, and are difficult to control the thickness of structural adhesive, resulting in poor connection strength and sealing performance, and are prone to problems such as bubbles, shrinkage, uneven stress distribution, and discontinuous sealing.

Method used

The inner and outer panels of the luggage compartment lid are made of PP composite material, combined with PU structural adhesive and PP+LGF adhesive-blocking ribs. By precisely controlling the thickness and position of the structural adhesive and setting the adhesive-blocking ribs, support is provided during the bonding process to ensure connection strength and sealing.

Benefits of technology

Precise control of the structural adhesive thickness was achieved, which improved the connection strength and sealing of the luggage lid, avoided problems such as air bubbles and uneven stress distribution, and ensured the integrity and protective effect of the product.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to an automobile trunk lid which comprises a trunk lid outer plate. The trunk lid inner plate is fixed on the inner side of the trunk lid outer plate; the hinge reinforcing plates are arranged on the two sides of the trunk lid inner plate; the lock catch reinforcing plate is arranged at the bottom of the trunk lid inner plate; the structural adhesive is arranged between the trunk lid outer plate and the trunk lid inner plate and used for connecting the trunk lid outer plate and the trunk lid inner plate; the glue blocking ribs are arranged on the two sides of the structural glue. Compared with the prior art, the utility model has the advantages of effectively controlling the thickness of the structural adhesive, ensuring the connection strength and the sealing property of the product and the like.
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