Modular Electric Door Lock with Interchangeable Outer Devices
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Solution Overview
Problem
Manufacturers face increased costs and complexity in producing various types of electric door locks due to the need for multiple parts and different assembly procedures, as existing solutions require distinct designs for different locking mechanisms such as radio frequency, keypad, and biological feature-based systems.
Innovation Solution
A modularized electric door lock design featuring an inner and outer unit with a detachable electric driving device, latch mechanism, and interchangeable outer electric devices (wireless transmitter, keypad, or biological feature pickup) that can be easily swapped, allowing for rapid assembly and conversion between types without altering other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manufacturers produce various types of electric door locks with different designs, then product versatility is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The electric door lock is divided into separate functional modules: a reusable main body and interchangeable outer electric devices. Each outer electric device (radio frequency transmitter, keypad, touch screen, biological feature pickup) is designed as an independent module that can be detached and replaced. This segmentation allows manufacturers to produce standardized main bodies and separate specialized input modules, reducing overall system complexity while maintaining product versatility.
Solution Approach 2:
The main body of the electric door lock is designed with universal compatibility to work with multiple types of outer electric devices. The standardized interface and mounting structure enable a single main body unit to support various input methods (radio frequency, keypad, touch screen, biological recognition), allowing one product platform to serve multiple functions and application scenarios.
2Adaptability or versatility
If manufacturers prepare more parts for inventory to support various door lock types, then product versatility is improved, but inventory cost increases
Solution Approach 1:
The standardized main body design serves as a universal platform that can accommodate multiple types of outer electric devices. Instead of maintaining separate inventory for different complete door lock models, manufacturers only need to stock the common main body units and the interchangeable outer electric device modules. This universal platform approach significantly reduces inventory requirements while maintaining the ability to provide diverse door lock types.
Solution Approach 2:
By segmenting the door lock system into reusable main bodies and interchangeable outer electric devices, manufacturers can maintain inventory of standardized components rather than complete assembled units for each variant. The main body and basic components can be produced in large quantities once, and only the specific outer electric device modules need to be varied, reducing overall inventory complexity and cost.
3Adaptability or versatility
If manufacturers design different assembling procedures for various door lock types, then product versatility is improved, but manufacturing efficiency decreases
Solution Approach 1:
The door lock system is segmented into a standardized main body and interchangeable outer electric devices. The assembly process is simplified to involve attaching the selected outer electric device to the pre-assembled main body, rather than assembling complete different types of door locks from scratch. This modular assembly approach maintains product versatility while significantly improving manufacturing efficiency through standardized procedures.
Solution Approach 2:
A universal assembly procedure and standardized interface design allow the same main body to be assembled with different outer electric devices using identical mounting steps. This universal assembly approach eliminates the need for different assembly procedures for different door lock types, maintaining manufacturing efficiency while supporting product versatility.
Data Source
AI summary
A modularized electric door lock includes an operating device mounted to a door, an outer electric device mounted to an outer side of the door for receiving an unlocking signal, and an inner electric device mounted to an inner side of the door and controlling the outer electric device. The inner electric device includes an electric driving device mounted in the operating device for setting the operating device to a locked state or an unlocked state. The outer electric device and the corresponding inner electric device can be selected among various types, such that the door lock of a desired type can be rapidly assembled.