Eccentric-Shaft Drive for Low-Friction Electronic Lock Bolts
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Solution Overview
Problem
Existing electronic locks suffer from high friction, power loss, noise generation, and instability due to complex clutch control mechanisms using gear reducer micro-motors, leading to battery depletion and mechanical wear.
Innovation Solution
A driving device for electronic locks featuring an eccentric shaft connected to a motor output, a slide block with a drive groove, and a kidney slot for reliable sliding, along with a torsional spring and limited rod to minimize friction and ensure stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a gear reducer micro-motor driving device is used to push a clutch pin for mechanism separation or closure, then the electronic lock can achieve opening and closing control, but the structure becomes complex and friction increases
Solution Approach 1:
The patent extracts and eliminates the gear reducer mechanism from the traditional clutch control system. Instead of using a gear reducer micro-motor driving device with multiple gears, the invention directly connects the motor to the clutch pin through a simplified transmission mechanism, removing unnecessary intermediate gear components while maintaining the opening and closing control function.
Solution Approach 2:
The patent inverts the traditional clutch control approach by using a slide block that moves linearly to directly actuate the clutch pin, rather than using rotational gear mechanisms. This inversion of the transmission path from rotational to linear motion simplifies the overall structure and reduces friction.
2Ease of operation
If gear sets are used for mechanism separation or closure, then the electronic lock can control locking and unlocking, but friction and energy consumption increase
Solution Approach 1:
The patent replaces the traditional gear-based mechanical transmission system with a direct linear actuation mechanism. The motor directly drives a slide block that moves along a guide rail to actuate the clutch pin, eliminating the gear sets and their associated friction losses while maintaining effective locking and unlocking control.
Solution Approach 2:
The patent segments the transmission function into distinct modular components: the motor, the slide block, the guide rail, and the clutch pin. This segmentation allows each component to perform its specific function efficiently without the friction penalties of gear engagement, while maintaining the overall control capability.
3Ease of operation
If traditional clutch control mechanisms with gear reducers are used, then the electronic lock can achieve control function, but noise generation increases
Solution Approach 1:
The patent extracts and removes the gear reducer mechanism that is the primary source of noise in traditional clutch control systems. By eliminating the meshing gears and their associated vibrations, the invention significantly reduces noise generation while preserving the control function through a quieter direct linear actuation mechanism.
4Ease of operation
If gear reducer micro-motor driving devices are used, then the electronic lock can control mechanism motion, but wear and tear on the micro-motor gear set increases
Solution Approach 1:
The patent extracts and eliminates the gear sets from the transmission system, removing the primary source of mechanical wear. The direct linear actuation mechanism uses sliding contacts instead of meshing gears, significantly reducing wear and tear on the micro-motor components and improving overall system reliability.
Solution Approach 2:
The patent substitutes the gear-based mechanical transmission system with a direct linear actuation system using slide blocks and guide rails. This substitution eliminates the wear-prone gear meshing while maintaining effective mechanism motion control, thereby improving reliability and reducing maintenance needs.
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 device reduces power consumption and noise while enhancing stability by minimizing friction and ensuring reliable operation through a simplified structure.
Implementation Method 1
the fixed shaft is sleeved with a torsional spring for driving a rotation of the bolt
Implementation Method 2
an output end of the motor is fixedly provided with an eccentric shaft for driving the slide block to slide
Data Source
AI summary
A driving device for electronic locks is disclosed, including an upper base, a bolt arranged in the upper base, and a slide block slidably disposed in the upper base. The upper base is fixedly provided with a fixed shaft, the bolt is rotationally connected to the fixed shaft, and the fixed shaft is sleeved with a torsional spring for driving a rotation of the bolt. One end of the slide block is fixedly provided with a baffle for restricting the rotation of the bolt, the lower base inside is fixedly provided with a motor, and an output end of the motor is fixedly provided with an eccentric shaft for driving the slide block to slide. The driving device has a simple structure, and its driving effect is reliable and the friction is small, which can reduce the consumption of electric power and less noise, thereby improving stability when in use.