Jamb-Mounted Electronic Door Lock With Stepper Actuation
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Solution Overview
Problem
Existing electronic door locks require complex installation processes involving multiple tools, making them cumbersome and inefficient.
Innovation Solution
A jamb-mounted electronic door lock assembly that fits behind a strike plate, utilizing a stepper motor and microprocessor to actuate a striker and move a latch assembly bolt out of the door jamb, allowing for easy installation and remote operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing electronic door locks are installed using traditional methods, then the locking function is reliable, but the installation process is complex and requires multiple tools
Solution Approach 1:
The electronic door lock is divided into separate modular components: an outer housing that mounts to the door, an inner housing containing the actuator mechanism, a plunger assembly, and a striker. This segmentation allows each component to be independently manufactured and assembled, simplifying the overall installation process while maintaining reliable locking function.
Solution Approach 2:
The inner housing containing the actuator and plunger mechanisms is nested within the outer housing structure. The plunger is nested within the inner housing, and the striker is positioned to engage with the door jamb. This nested arrangement consolidates multiple functional elements into a compact unified assembly that installs as a single unit, reducing installation complexity.
2Ease of operation
If a traditional electronic door lock is used, then the locking mechanism is secure, but the operation requires manual intervention at the door
Solution Approach 1:
A remote control device serves as an intermediary between the user and the door lock system. The remote transmits wireless signals to the electronic actuator in the door lock, which then activates the plunger mechanism to move the striker. This intermediary enables automatic remote operation while maintaining the secure mechanical locking function through the actuator-plunger-striker mechanism.
3Productivity
If existing door locks require multiple installation tools, then the locking function is reliable, but the installation time and effort increase
Solution Approach 1:
The door lock assembly is designed with universal mounting features that can accommodate various door types and configurations. The outer housing includes integrated mounting elements that work with standard door preparations, and the modular design allows the same basic assembly to be installed in different locations without requiring specialized tools or custom fabrication, thereby improving installation efficiency and reducing time loss.
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
Enables easy installation and remote unlocking of doors with minimal tooling, enhancing convenience and efficiency.
Implementation Method 1
The module is a stepper motor that communicates with a microprocessor
Implementation Method 2
one or more springs, a plunger
Data Source
AI summary
An electronic door lock assembly installed in a door jamb is designed to electronically move a latch assembly of a door latch or latch bolt out of the door jamb. The lock includes an exterior housing that houses an interior interlock housing, a strike actuator, at least two springs, a microprocessor, a plunger system, and a motor. When a signal is sent to the microprocessor and power is applied to the motor, the plunger translates within the interior interlock housing causing the strike actuator to extend such that the head member of the strike actuator pushes the latch out of the door jamb. Alternatively, when power is removed from the stepper motor, the electronic door assembly retracts the strike actuator, which allows the latch to rest within the door jamb.