Modular Electronic Lock Mechanism Retrofit
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Solution Overview
Problem
Existing electronic locking systems for storage units are not easily adaptable to existing mechanical locking systems, require costly tooling changes, and have inefficiencies such as frequent battery replacement and high power consumption, lacking compact and secure designs with programmable features.
Innovation Solution
An electronic lock with a modular design that includes a replaceable driver and housing, a gear segment assembly operated by a programmable keypad or card reader, and a manual activation assembly for power-saving operation, allowing for easy integration with various locking systems and reducing battery consumption through selective motor use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic locks use special housings and latching mechanisms, then security and electronic functionality are improved, but manufacturing cost and installation complexity increase due to required tooling changes
Solution Approach 1:
The electronic lock is designed with a universal interface that can interface with multiple types of existing locking mechanisms (cam locks, deadbolts, central locking systems). The housing includes a standardized mounting plate and adapter interface that allows the same electronic lock unit to work with different lock types without requiring custom tooling for each application, thereby reducing manufacturing costs while maintaining security functionality.
2Reliability
If electronic locks use special housings and latching mechanisms, then security and electronic functionality are improved, but installation complexity increases due to required tooling changes
Solution Approach 1:
The electronic lock is divided into modular components: a main housing unit, a separate mounting plate, and interchangeable adapters for different lock types. This segmentation allows installers to use the same main unit with different adapters rather than requiring complete custom installations for each lock type, significantly reducing installation complexity while maintaining security integrity.
Solution Approach 2:
A standardized mounting plate and adapter interface serve as intermediaries between the electronic lock and various existing locking mechanisms. These intermediaries provide a universal connection point that simplifies installation by eliminating the need for custom tooling changes while ensuring secure integration with diverse lock types.
3Ease of operation
If electronic locks use linear solenoid devices with substantial battery capacity, then locking functionality is achieved, but power consumption increases and battery replacement frequency increases
Solution Approach 1:
The electronic lock uses a high-torque gear motor that operates in periodic bursts rather than continuous solenoid engagement. The motor engages only long enough to rotate the locking mechanism into position, then disengages to hold position mechanically. This periodic operation dramatically reduces average power consumption compared to continuously energized solenoids while maintaining full locking functionality.
Solution Approach 2:
The patent replaces linear solenoid actuation with a rotary gear motor system. The motor drives a gear train that converts rotational motion into the linear motion needed for locking. This mechanical substitution allows for more efficient energy use because the motor can be smaller and operate intermittently rather than requiring large solenoids that consume continuous power.
4Device complexity
If electronic locks require frequent battery replacement, then initial design simplicity is maintained, but operational reliability and user convenience deteriorate
Solution Approach 1:
The electronic lock incorporates a rechargeable battery system with a USB charging port that allows dynamic recharging while the lock is installed and operational. This dynamic power management eliminates the need for frequent battery replacements while maintaining design simplicity, as the same housing accommodates both the battery and charging interface without adding complex external power requirements.
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 convenient retrofit installation, reduces battery replacement frequency, and provides enhanced security and programmability, while maintaining compatibility with diverse locking systems and minimizing power consumption.
Implementation Method 1
A motor is provided to operate a gear segment assembly to selectively engage or disengage the drive shaft from the driver
Implementation Method 2
These prior art electronic locks use a solenoid device operating with a linear action. Typically, this linear action engages or disengages a latching bolt or engages a shear pin to prevent a knob from turning
Data Source
AI summary
An interchangeable electronic lock mechanism provides selective access to a motor controlled latching system including a motorized pin to lock and unlock a knob assembly. The lock mechanism may be used to replace key operated locking cores, on the exterior of a storage unit, with a plug and optional adapter inserted into a remaining shell housing, and a driver to control access to a storage unit. Manual rotation of the knob activates the drive assembly to control access to the storage unit. An optional break away security feature in the knob inhibits unauthorized unlatching of the lock. When the lock is unlatched, the knob rotates the drive assembly including the plug and adapter within the shell housing, and in turn, activates the driver to operate the lock assembly in the storage unit. An optional modular chassis assembly includes a removable array of components for testing, maintenance and repair.