Wireless Door Lock with Internal Solenoid Actuation
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Solution Overview
Problem
Existing electronic door lock systems lack advanced security features and convenience, particularly in terms of wireless communication and integration with various door types, and often require visible and accessible locks that can be vulnerable to unauthorized access.
Innovation Solution
A wireless-enabled door-lock system that includes a latch lock with a latch-retainer assembly and a control system allowing for secure, contactless locking and unlocking via a network-connected device, with an integrated design that minimizes visibility and accessibility, using a solenoid assembly and status sensor to manage the lock's configuration and provide remote access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a visible and accessible lock is used, then the locking function is provided, but security is reduced due to vulnerability to unauthorized access
Solution Approach 1:
The locking mechanism is extracted from the visible exterior and relocated to the interior of the door assembly. The latch lock is positioned within the door cavity, inaccessible from the outside, while still providing the necessary locking function through internal engagement with the door latch.
Solution Approach 2:
A wireless communication system serves as an intermediary between the remote control and the locking mechanism. The control system receives wireless signals and translates them into mechanical locking actions, eliminating the need for visible physical keys or locks on the exterior.
2Ease of operation
If a wireless-enabled control system is integrated, then convenience and remote access are improved, but device complexity increases
Solution Approach 1:
The control system is designed to perform multiple functions through a single integrated unit: receiving wireless communication signals, processing authorization codes, controlling the solenoid assembly, and monitoring lock status via the status sensor. This multi-functionality reduces the need for separate components.
Solution Approach 2:
The traditional mechanical key-lock system is replaced with a wireless electronic control system. The solenoid assembly provides electromagnetic actuation instead of mechanical key turning, and the status sensor provides electronic status indication instead of physical position checking.
3Reliability
If the lock is made integrated and invisible, then security is enhanced by minimizing visibility, but manufacturing precision requirements increase
Solution Approach 1:
The locking system is divided into distinct functional modules: the latch lock assembly, the solenoid assembly, the status sensor, and the wireless control unit. Each module can be manufactured and tested separately before final integration, reducing the overall precision requirements compared to a monolithic design.
Solution Approach 2:
The latch lock is nested within the door assembly, with the solenoid assembly and status sensor integrated into the same internal cavity. This nested arrangement allows each component to be positioned within established manufacturing tolerances of the door assembly rather than requiring independent high-precision positioning.
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 provides enhanced security by ensuring only authorized users can access the door, with contactless operation and remote control capabilities, reducing the need for visible locks and enhancing security through an integrated, invisible lock design.
Implementation Method 1
A solenoid assembly and status sensor are integrated into the latch lock
Data Source
AI summary
A door-lock system includes a door latch adapted to be coupled to one of a door or to a structure defining the passageway through which the door restricts passage. The door-lock system may further include a latch lock adapted to be coupled to the other of the door or to the structure defining the passageway to selectively mate with the door latch to block the door from opening.