Electronic Lock Transmission Structure for Higher Ejection Force
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Solution Overview
Problem
Existing electronic locks in new energy electric automobiles suffer from insufficient ejection force, high energy consumption, noise, and reduced service life due to frictional forces and inefficient gear structures, necessitating a solution for improved stability and durability.
Innovation Solution
An electronic lock transmission structure utilizing a first worm and second worm configuration with a larger speed reduction ratio, combined with a rack and cam device, to output a higher ejection force and include wear-resistant plating layers to prevent wear and jamming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional door handle structure is used with separate components for pulling and locking, then the manufacturing and assembly process is complex, but the structural strength and sealing performance are compromised
Solution Approach 1:
The patent merges the pulling handle and locking handle into a single integrated door handle component. This unified structure eliminates the need for separate pulling and locking mechanisms, simplifying both manufacturing and assembly processes while maintaining structural integrity and sealing performance through a cohesive design that distributes mechanical loads more effectively across the door assembly.
Solution Approach 2:
The integrated door handle serves multiple functions simultaneously - it acts as both a pulling mechanism for opening the door and a locking mechanism for securing it. This multi-functional design eliminates the need for separate specialized components, reducing assembly complexity while enhancing overall structural strength and sealing through a unified load-bearing structure.
2Device complexity
If separate pulling and locking handles are used, then the assembly is complex, but the aesthetic appearance and space utilization are reduced
Solution Approach 1:
By combining the pulling handle and locking handle into one integrated component, the patent achieves a cleaner, more streamlined aesthetic appearance. The unified structure eliminates visual clutter from multiple separate handles and optimizes space utilization on the door surface, while simultaneously reducing assembly complexity through fewer parts and connection points.
3Device complexity
If the door handle is fixed relative to the door body, then the structure is simple, but the noise and wear from relative movement between components increase
Solution Approach 1:
The patent employs a nested structure where the door handle is positioned within or integrated with the door body structure, allowing controlled relative movement through defined interfaces. This nesting approach maintains structural simplicity while minimizing noise and wear by confining movement to specific, well-lubricated interfaces rather than allowing unrestricted movement between separate components.
Solution Approach 2:
The patent introduces an intermediary damping element or interface layer between the door handle and door body that mediates their relative movement. This intermediary component absorbs vibrations and reduces direct contact friction, thereby decreasing noise and wear while maintaining the overall structural simplicity of the fixed handle configuration.
Data Source
Figure 1~2
AI summary
An electronic lock transmission structure, an electronic lock and a motor vehicle, including: a drive device with an output shaft; a transmission mechanism including an input end and an output end, and the input end is a transmission assembly connected to the output shaft, and the output end is a cam device; a lock rod, and one end of which is a free end, and the other end of which is connected to the cam device; and rotation of the output shaft is converted into a reciprocating movement of the lock rod through the transmission mechanism. The disclosed electronic lock transmission structure adopts a first worm and a second worm for transmission, which may provide a larger speed reduction ratio, thereby outputting a larger ejection force. The disclosed electronic lock has a rack, the rack is capable of driving a first gear to separate from the first worm when the entire electronic lock transmission structure is jammed, thereby resetting the electronic lock.