Removable Inner Circuit Board Access Window Electric Door Lock
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Solution Overview
Problem
Conventional electric door locks have a high failure rate and complex repair processes due to the integration of multiple electronic components on a single inner circuit board, requiring disassembly of the handle mechanism and inner cover seat for maintenance and battery replacement.
Innovation Solution
The electric door lock design features a removable inner circuit board and battery box, allowing for easy access and replacement through a window in the inner cover seat, with a middle circuit board providing stable functionality and reducing the need for extensive disassembly during repairs or battery replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all electronic members are integrated onto the inner circuit board, then the control functionality is complete, but the failure rate increases and repair complexity increases
Solution Approach 1:
The circuit board is divided into an outer circuit board and an inner circuit board that can be separately replaced. The outer circuit board contains control electronics while the inner circuit board handles power management, allowing independent replacement of failed components without replacing the entire circuit board assembly.
Solution Approach 2:
The inner circuit board is made removable from the inner cover seat through a window opening. When the inner circuit board fails, users can extract it through the window without disassembling the handle mechanism or inner cover seat, significantly simplifying the repair process.
2Stability of the object's composition
If the inner circuit board is fixedly received in the inner cover seat, then the structural stability is good, but the repair process becomes complicated requiring disassembly of handle mechanism and inner cover seat
Solution Approach 1:
A window is provided in the inner cover seat that allows the inner circuit board to be removed directly through the window opening. This extraction mechanism maintains the fixed reception of the circuit board during normal operation while enabling easy removal for repair without disassembling the handle mechanism or inner cover seat.
Solution Approach 2:
The window acts as an intermediary access point between the user and the inner circuit board. It provides a direct access path that bypasses the need to disassemble the surrounding structural components, thereby maintaining structural integrity while facilitating easy repair.
3Use of energy by moving object
If batteries are received inside the inner cover seat, then the power supply is integrated, but the battery replacement process becomes complicated requiring disassembly of handle mechanism and inner cover seat
Solution Approach 1:
The battery box is made removable through the window in the inner cover seat. Users can extract the battery box through the window without disassembling the handle mechanism or inner cover seat, maintaining power supply integration while enabling convenient battery replacement.
4Adaptability or versatility
If the inner circuit board is equipped with multiple electronic members, then the control functionality is comprehensive, but the manufacturing cost and complexity increase
Solution Approach 1:
The circuit board functionality is segmented into two separate boards: the outer circuit board handles control electronics and the inner circuit board handles power management. This segmentation reduces the complexity of each individual board while maintaining comprehensive control functionality through their coordinated operation.
Data Source
AI summary
An electric door lock includes a lock device and an electric control device. The lock device includes a latch bolt, an inner cover seat, and a handle mechanism driving movement of the latch bolt. The inner cover seat has an inner cover having an inner receiving room, and a window that is communicated with the inner receiving room. The electric control device electrically controls the lock device, and includes a middle circuit board fixedly received in the inner receiving room, and an inner circuit board removably received in the inner receiving room, removably connected to the middle circuit board, corresponding to the window in position, and removable from the inner receiving room through the window.