A self-locking car grille actuator

CN224323833UActive Publication Date: 2026-06-05NINGBO HENGFU AUTO PARTS DEV

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: NINGBO HENGFU AUTO PARTS DEV
Filing Date: 2025-05-22
Publication Date: 2026-06-05

AI Technical Summary

Technical Problem

Existing automotive grille actuators are complex in structure, occupy a large space, and their reliability decreases in humid and high-temperature environments, making them difficult to meet the needs of lightweight and compact vehicles.

Method used

The design employs a helical gear structure for the worm wheel and worm, forming a reverse transmission locking structure through the frictional self-locking engagement of the helical gear and worm. This eliminates the need for an additional braking device and utilizes the frictional torque between the worm wheel and worm to achieve the self-locking function, thus optimizing the spatial layout of the components.

Benefits of technology

It achieves a self-locking function with high reliability and low maintenance requirements, reduces structural complexity and space occupation, and improves stability and safety in harsh environments.

✦ Generated by Eureka AI based on patent content.

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Figure CN224323833U_ABST

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Abstract

The application discloses a self-locking automobile grille actuator, which comprises a shell, a driving assembly, an output assembly, a speed reduction mechanism and a control unit, wherein the shell is internally provided with a mounting space; the driving assembly, the output assembly, the speed reduction mechanism and the control unit are all arranged in the mounting space; the control unit is electrically connected with the driving assembly; the driving assembly comprises a worm; the speed reduction mechanism comprises a worm wheel; the worm wheel is arranged on the side close to the worm; the other side of the speed reduction mechanism is used for being in transmission connection with the output assembly; wherein the worm wheel is provided with a helical tooth structure; the driving assembly is connected with the speed reduction mechanism through the helical tooth structure and is in mesh with the worm; the worm drives the worm wheel to rotate; the helical tooth structure and the worm are in friction self-locking cooperation to form a reverse transmission locking structure.

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