Wireless Power Smart Door Lock Self-Charging Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smart door locks rely on battery power, requiring frequent replacements and leading to environmental pollution, with external power supply methods being inconvenient and unsafe due to the need for electrical contact.
Innovation Solution
A wireless power supply smart door lock system comprising a wireless power emitting control device on the door frame and a receiving device on the door body, enabling contactless charging through electromagnetic interaction, with real-time state detection and energy storage management to ensure continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery power supply is used in smart door lock, then the lock can operate independently, but the battery needs frequent replacement causing environmental pollution and inconvenience
Solution Approach 1:
The door lock system automatically charges itself through wireless power transfer when the door is closed. The emitting device on the door frame and receiving device in the lock body establish electromagnetic coupling to transfer energy, eliminating the need for manual battery replacement and achieving self-maintenance of power supply.
Solution Approach 2:
The system performs periodic charging cycles based on door closure events. Each time the door closes, the wireless power transfer activates to charge the energy storage unit, creating a regular charging pattern that ensures continuous operation without user intervention.
2Use of energy by moving object
If external power supply is used to charge the lock, then the battery can be recharged, but electrical contact is required making charging inconvenient and unsafe
Solution Approach 1:
The patent replaces the mechanical electrical contact charging system with a wireless electromagnetic power transfer system. The emitting coil and receiving coil establish electromagnetic coupling to transfer energy without physical contact, eliminating safety hazards associated with exposed electrical contacts and manual plug insertion.
Solution Approach 2:
The wireless power transfer system uses electromagnetic fields as an intermediary to transfer energy between the door frame and lock body. This intermediary mechanism allows energy transfer without direct electrical contact, improving safety and convenience during charging operations.
3Ease of operation
If battery is discarded after exhaustion, then power supply issue is resolved, but environmental pollution increases
Solution Approach 1:
The system recovers energy continuously through wireless power transfer during door closure periods, eliminating the need to discard batteries. The energy storage unit is repeatedly charged and discharged, extending the service life of the power system and preventing battery waste that would contribute to environmental pollution.
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 system ensures the energy storage unit is always fully charged, enhancing convenience and safety by eliminating the need for electrical contact, thus reducing battery waste and environmental impact while maintaining normal lock operation.
Implementation Method 1
The wireless power emitting coil and the wireless power receiving coil can be matched to perform electromagnetic interaction
Data Source
AI summary
Disclosed is a wireless power supply smart door lock, comprising: a wireless power transmission control device mounted on a door frame; the wireless power transmission control device comprises a first main control unit and a wireless power transmission coil, a first wireless power conversion unit, a first communication unit and a door body state detecting unit electrically connected to the first main control unit; the wireless power receiving control device comprises a second main control unit and a wireless power receiving coil, a second wireless power conversion unit, an energy storage unit and a second communication unit electrically connected to the second main control unit; the first main control unit detects the acquired door opening or closing state information and the energy storage unit electric quantity information obtained by the communication interaction in real time according to the door body state detecting unit, and determines whether to trigger the wireless power transmission coil to transmit electric energy to the wireless power receiving coil to charge the energy storage unit. The energy storage unit in the lock body can be charged when the door body is closed, and the energy storage unit is always fully charged to ensure the normal operation of the lock body, which greatly improves the operation convenience of the smart lock.