Electronic Door Lock Clutch Mechanism Stability
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Solution Overview
Problem
Existing electronic door locks for recreational vehicles have complex clutch devices with low stability, necessitating a simpler and more stable clutch mechanism.
Innovation Solution
A novel electronic door lock featuring a shell with an outer handle, an elastic sliding tongue, and a first clutch device comprising a motor and transmission assembly that limits the outer handle's pushing action through a limiting member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clutch device is used to control extension and retraction of the lock tongue, then the door lock can achieve locking and unlocking functions, but the structure becomes complex and stability decreases
Solution Approach 1:
The patent extracts the clutch device entirely from the traditional door lock mechanism. Instead of using a clutch device to control the lock tongue, the invention uses a motor directly coupled with a reducing mechanism to drive the lock tongue through a connecting rod. This extraction of the clutch device simplifies the overall structure while maintaining the locking and unlocking functions, directly resolving the contradiction between reliability and structural complexity.
Solution Approach 2:
The patent replaces the mechanical clutch device with an electromechanical system consisting of a motor, reducing mechanism, and control circuit. The motor drives the lock tongue through a reducing mechanism that converts rotational motion into linear motion via a connecting rod. This substitution eliminates the need for a clutch device while achieving the same functional outcome, thereby simplifying the structure and improving stability.
2Ease of manufacture
If a clutch device with complex structure is used, then the door lock can control the lock tongue, but the manufacturing cost increases and production efficiency decreases
Solution Approach 1:
By removing the clutch device from the mechanism, the patent reduces the number of components that need to be manufactured and assembled. The simplified structure with motor, reducing mechanism, and connecting rod requires fewer machining operations and assembly steps, directly improving production efficiency and reducing manufacturing costs.
Solution Approach 2:
The patent merges the functions of the clutch device into the motor and reducing mechanism system. The motor provides both the driving force and the speed control, while the reducing mechanism handles the motion conversion. This consolidation of functions into fewer components simplifies the manufacturing process and reduces the overall complexity of the door lock system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves high mechanical stability, simplifies the lock's structure, enhances user experience, and reduces production costs while improving efficiency and yield.
Implementation Method 1
the elastic sliding tongue includes an elastic member and a sliding tongue; one end of the elastic member is abutted to the other end of the first mounting slot; and the other end of the elastic member is abutted to the sliding tongue to push the sliding tongue to be threaded out of the first opening
Implementation Method 2
the first clutch device includes a first motor and a first transmission assembly connected to the first motor in a transmission manner
Implementation Method 3
the first transmission assembly includes a first transmission shaft, a first transmission gear, and a second transmission gear; the first worm is in meshing connection to the first transmission gear; and the limiting member is in meshing connection to the second transmission gear
Implementation Method 4
a first worm is arranged at a driving end of the first motor; the first transmission assembly includes a first transmission shaft, a first transmission gear, and a second transmission gear; the first worm is in meshing connection to the first transmission gear
Data Source
AI summary
A novel electronic door lock includes a shell, an outer handle and an elastic sliding tongue arranged in the shell. The elastic sliding tongue is threaded out from a first opening of the shell. The outer handle acts on the elastic sliding tongue to push the elastic sliding tongue back to the shell from the first opening. The shell includes a first clutch device and a limiting member. The first clutch device includes a first motor and a first transmission assembly connected to the first motor in a transmission manner. The first transmission assembly is connected to the limiting member. The first transmission assembly drives the limiting member to move to limit the pushing performed by the outer handle on the elastic sliding tongue.