Electronic Control Door Lock with Threaded Spring Actuation
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Solution Overview
Problem
Existing door locks with complex mechanical structures are prone to damage and increase manufacturing costs due to their intricate design.
Innovation Solution
The electronic control door lock features a simplified lock driving device with a latch device, inner and outer operational devices, an activation member, a rotating shaft with a driving thread, and a driving spring, which reduces complexity and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complex mechanical structure is used in the lock driving device to control locking and unlocking, then the operational control is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces complex mechanical control mechanisms with an electronic control system. The electronic control unit receives signals from sensors (such as door position sensors, handle sensors, or key fob sensors) and electronically actuates the lock mechanism, eliminating the need for complex mechanical linkages and switches while maintaining reliable operational control.
Solution Approach 2:
The lock driving device is designed with multi-functionality to reduce overall system complexity. The electronic control unit integrates multiple functions including locking, unlocking, anti-peeping protection, and communication with external systems (such as vehicle computers or mobile devices) into a single integrated component, reducing the number of separate mechanical devices needed.
2Ease of operation
If a complicated mechanical structure is used in the lock driving device, then the locking and unlocking control is enhanced, but the manufacturing cost increases
Solution Approach 1:
By substituting complex mechanical components with electronic components, the patent reduces manufacturing costs. Electronic components are generally more cost-effective to produce at scale compared to precision mechanical parts, and the electronic control unit can be manufactured using standardized electronic assembly processes rather than complex mechanical machining and assembly operations.
Solution Approach 2:
The patent merges multiple functional components into integrated modules. The electronic control unit combines the lock actuator, sensor interfaces, control logic, and communication functions into a single integrated component, reducing the total number of parts that need to be manufactured and assembled, thereby lowering overall manufacturing costs.
3Adaptability or versatility
If a complicated mechanical structure is used in the lock driving device, then the operational functionality is improved, but the reliability decreases due to increased damage risk
Solution Approach 1:
The patent replaces mechanical linkages, switches, and moving parts with electronic components that have fewer failure points. Electronic components such as sensors, microcontrollers, and actuators are more resistant to mechanical wear, corrosion, and accidental damage compared to traditional mechanical components, thereby improving reliability while maintaining operational functionality.
Solution Approach 2:
The electronic control system includes self-diagnostic and self-protecting features. The system can detect sensor failures, communication errors, and operational anomalies, and automatically adjust its behavior or alert the user, maintaining operational functionality while reducing the impact of potential failures on overall system reliability.
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 solution effectively reduces manufacturing difficulties and costs by simplifying the lock driving device while maintaining operational efficiency in locking and unlocking the door.
Implementation Method 1
a driving spring in threading connection with the driving thread, wherein when the rotating shaft rotates in the reverse direction, the driving spring actuates the activation member to move to the first position along a longitudinal axis
Implementation Method 2
when the rotating shaft rotates in the forward direction, the driving spring actuates the activation member to move to the second position along the longitudinal axis
Data Source
AI summary
An electric control door lock includes an inner operational device, an outer operational device, and a latch bolt operably connected to the inner and outer operational devices. A rotating shaft is rotatably supported in an activation member and includes a driving threaded in threading connection with a driving spring. When the rotating shaft is driven by a motor to rotate, the driving spring moves along a longitudinal axis to actuate the activation member. Movement of the activation member is used to control operation of the outer operational device, thereby permitting or not permitting movement of the latch bolt to the unlatching position.