Electric Lock Clutch Mechanism with Cam-Driven Rod
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electric locks with clutch mechanisms and gear transmission sets have complex and large structures, making them inefficient for space-saving designs.
Innovation Solution
The electric lock incorporates a concise clutch mechanism with a motor-driven driving member that rotates relative to a cover, using cam surfaces to move a clutch rod close to or away from a handle, allowing direct force transmission to a latch for locking and unlocking, and is disposed between bases for space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gear transmission set and clutch mechanism are used in conventional electric locks, then the locking function is achieved, but the structure becomes complex and occupies large space
Solution Approach 1:
The patent extracts and eliminates the gear transmission set from the conventional electric lock structure, retaining only the essential clutch mechanism. This removal of unnecessary components directly reduces structural complexity while preserving the core locking function through the simplified clutch rod and cam surface mechanism.
Solution Approach 2:
The clutch mechanism is segmented into distinct functional components: the clutch rod with engaging structure, the driving member with cam surface, and the latch assembly. This segmentation allows each component to perform its specific function efficiently, reducing overall structural complexity while maintaining reliability.
2Reliability
If a gear transmission set and clutch mechanism are used in conventional electric locks, then the locking function is achieved, but the volume increases reducing space saving capability
Solution Approach 1:
The gear transmission set, which occupies significant volume, is completely removed from the mechanism. The clutch mechanism volume is reduced by eliminating this bulky component while maintaining the locking function through the direct cam surface-driven clutch rod movement.
Solution Approach 2:
The driving member is integrated directly with the motor output, eliminating the need for separate gear transmission components. The cam surface on the driving member directly actuates the clutch rod, merging the functions of power transmission and clutch actuation into a single compact component.
3Volume of moving object
If the clutch mechanism is simplified to save space, then volume is reduced, but force transmission reliability may be compromised
Solution Approach 1:
The cam surface on the driving member uses a curved geometric profile to convert rotational motion into linear movement of the clutch rod. This curved surface design ensures smooth, reliable force transmission throughout the engagement and disengagement cycles, maintaining reliability while keeping the mechanism compact.
Solution Approach 2:
The cam surface is designed to progressively engage the clutch rod before full locking is required, ensuring smooth force transmission. The engaging structure on the clutch rod is pre-positioned to receive force from the cam surface, preventing sudden loads and maintaining transmission reliability in the simplified mechanism.
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
This design enhances the reliability of the electric lock by direct force transmission and allows for effective space-saving by simplifying the clutch mechanism, enabling it to be integrated within a door.
Implementation Method 1
The clutch mechanism of the electric lock of the present invention utilizes the motor for driving the driving member to rotate relative to the cover, so as to make a cam surface of the driving member ascend or descend relative to a cam surface of the cover, and further move the clutch rod close to or away from the first handle.
Data Source
AI summary
An electric lock includes a cover, a clutch rod, a driving module, a clutch member and a handle. The clutch rod is movably connected to a latch. The driving module is disposed on the cover. The driving module includes a driving member abutting against and rotatable relative to the cover, and a motor configured to drive the driving member to rotate. The handle is connected to the clutch member. Wherein, when the motor drives the driving member to rotate relative to the cover along a first rotating direction, the driving member drives the clutch rod to move toward the handle to be engaged with the clutch member for allowing the handle to drive the latch to move through the clutch rod when the handle is rotated.