Electric limit stop with unlocking for side door

CN224363778UActive Publication Date: 2026-06-16SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)
Filing Date: 2025-07-15
Publication Date: 2026-06-16

AI Technical Summary

Technical Problem

Existing vehicle side door electric limit switches cannot open and close properly when the motor is damaged, and their complex structure and poor compatibility affect the reliability of door control and production costs.

Method used

An electric limit switch with unlocking is designed, comprising a motor assembly, a transmission assembly, and an unlocking assembly. The gear connection is disconnected in case of motor failure through a collapsible groove structure, switching to manual switch mode. Adaptability and efficiency are improved through universal drive ball joint and rolling bearing.

Benefits of technology

Ensuring that the doors can still open and close normally in the event of a motor failure improves safety and reliability, reduces production costs, and enhances adaptability to different vehicle models.

✦ Generated by Eureka AI based on patent content.

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Figure CN224363778U_ABST

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Abstract

The utility model discloses a side door with electric positioner of unlocking, including motor assembly, transmission assembly and unlocking assembly, and motor assembly is through the encapsulation motor of upper and lower casing, and transmission assembly utilizes the meshing transmission of input gear and output gear, and through universal transmission ball head, power is transmitted to screw rod to drive the opening and closing of the door, and unlocking assembly cooperates with the collapse groove structure on the transmission system casing through the inhaul cable, and when the motor is damaged, pulls the casing to make the collapse groove fracture, realizes the separation of input gear and output gear, thereby switches to the manual switch door mode. The utility model discloses through the bimodal drive design, solved the problem that the door cannot be operated when the motor fails, and simultaneously utilizes the angle adjusting function of universal transmission ball head and the low friction characteristic of rolling bearing, realizes the high compatibility and long -term stable operation to different vehicle models door, has the technical advantage of simple structure, low cost, high reliability.

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