Battery-Free Access Lock Using Push-Button Power Generation
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Solution Overview
Problem
Current non-wired mechatronic access control systems require batteries for their electronics and lock actuators, leading to costs, environmental impact, and recycling challenges.
Innovation Solution
An access control system that generates power through mechanical energy transformation using a power-generating motor and clutch mechanism, eliminating the need for batteries by converting user-applied mechanical movement into electrical power to operate the control circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If batteries are used to power the control circuit and lock actuator, then the system can operate reliably, but the system incurs ongoing costs, environmental harm, and maintenance requirements
Solution Approach 1:
The system generates its own power through the clutch mechanism that converts mechanical energy from door operation into electrical energy, eliminating the need for external battery power sources and the associated environmental and maintenance issues
Solution Approach 2:
The system changes the energy source parameter from chemical energy (batteries) to mechanical energy conversion, using the clutch mechanism to transform the mechanical energy of door opening/closing operations into electrical energy to power the control circuit
2Ease of operation
If batteries are installed in the access control system, then the electronics and actuators can function, but the batteries require periodic replacement and recycling
Solution Approach 1:
The clutch mechanism automatically generates power during normal door operations, eliminating the need for periodic battery replacement and the time loss associated with maintenance activities
3Object-generated harmful factors
If a power-generating system with clutch mechanism is implemented, then battery dependency is eliminated, but the device complexity increases
Solution Approach 1:
The clutch mechanism serves multiple functions: it engages the power-generating motor during door operations to generate electricity, and can also serve as part of the locking mechanism, thereby adding power generation capability without proportionally increasing overall system complexity
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
Eliminates battery dependency, reducing costs and environmental impact while ensuring fast operation and low power consumption, with additional features like event logging and emergency manual opening.
Implementation Method 1
a power-generating motor, so that the rotating element is connected to the power-generating motor through the clutch mechanism
Data Source
AI summary
An access control system includes a control circuit (7), a push button (4) that can be moved from a distal position to a proximal position, aided by an elastic element (4.d) to keep it in the distal open position, a tab (3), configured to be moved by means of the push button (4), and establish the closure of the access, a locking device (5) for locking the closed position of the tab (3), an access identification element that communicates with the control circuit (7) that locks the closed position of the tab (3) when the control circuit (7) identifies the access element, characterized by comprising a rotating element that rotates when the push button (4) is actuated, a clutch mechanism (6.c) that transmits the rotating movement of the rotating element to a power-generating motor (6.a) to power the control circuit (7) when the push button (4) is actuated, avoiding the use of battery.