Door Latch Electrical Contacts for Power and Signal Transfer
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Solution Overview
Problem
Conventional doors with electronic devices face installation and maintenance complexities due to the need for external power sources and signal processing devices, which can be costly and require regular replacement, and there is a need for a less intrusive and easier method to provide power and signal processing during power outages.
Innovation Solution
A door latch system with integrated electrical leads in the latch bolt and strike plate that establish an electrical connection when engaged, allowing power and signal transfer between them, using complementary leads that form a closed circuit when in contact, and incorporating features to ensure safe and reliable contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external power sources and controllers are used to operate electronic devices on doors, then the electronic devices can function properly, but the installation and maintenance complexity increases and costs increase
Solution Approach 1:
The patent combines the power source and control functions directly into the door latch mechanism itself. The latch bolt includes integrated electrical contacts that automatically connect with the strike plate when the door is closed, eliminating the need for separate external power sources and controllers. This merging of functions reduces installation and maintenance complexity while ensuring reliable operation of electronic devices.
Solution Approach 2:
The door latch is designed to serve multiple functions: mechanical latching, electrical power transmission, and signal processing. The electrical contacts within the latch mechanism can provide power to various electronic devices (cameras, sensors, locks, indicators) and facilitate two-way communication, making the latch a universal interface for both power and data needs.
2Duration of action of stationary object
If external power sources are used for electronic devices on doors, then the devices can operate continuously, but regular replacement and maintenance are required
Solution Approach 1:
The door frame incorporates a power source that automatically provides electrical power to electronic devices through the latch mechanism. This self-service system eliminates the need for manual battery replacement or external power connections, as the power is continuously available through the electrical contacts in the latch and strike plate.
3Device complexity
If conventional door latch mechanisms are used, then the structure is simple, but power and signal transfer between door and frame is not possible
Solution Approach 1:
The patent merges electrical conductor elements directly into the mechanical latch bolt and strike plate structure. The electrical contacts are positioned within the latch mechanism itself, combining mechanical latching and electrical connection functions into a single integrated system that maintains structural simplicity while enabling power and signal transfer.
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
Facilitates power and signal transfer through a door latch system with reduced installation and maintenance complexity, enabling continuous operation during power outages and supporting various types of door locks and electronic devices.
Implementation Method 1
At least one latch bolt electrical lead is disposed on the latch bolt and positioned such that the at least one latch bolt electrical lead establishes an electrical connection with at least one complementary strike plate electrical lead disposed on the strike plate when the latch bolt is in the closed position.
Data Source
AI summary
A door latch includes a latch bolt and strike plate capable of transferring electricity therebetween. The latch bolt and strike plate may each include one or more complementary electrical leads such that electrical power and/or electrical signals may flow between the complementary electrical leads, when the electrical leads are in contact with one another.