Electronic Device Locking Structure Prevents Screen Rotation
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Solution Overview
Problem
Users often inadvertently rotate display screens on electronic devices like notebook computers, leading to accidental collisions and potential damage due to the lack of effective locking mechanisms that prevent unintended rotation.
Innovation Solution
A locking structure is implemented between the first and second bodies of an electronic device, which includes a pivot structure and a locking mechanism that allows rotation only when the device is unfolded to a specific open position, using a combination of magnetic attraction and elastic forces to prevent unwanted movement when folded or unfolded to other positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display screen is made rotatable relative to the host, then the display surface can face different directions, but users may inadvertently rotate the display screen and cause it to dash against or press on the host, leading to damages
Solution Approach 1:
The locking structure dynamically changes state based on the unfolding angle of the second body. When the second body is unfolded to a predetermined angle (e.g., 180 degrees), the locking structure transitions from a locked state to an unlocked state, allowing rotation. At other angles, it remains locked, preventing accidental rotation while maintaining adaptability when needed.
Solution Approach 2:
The system uses the unfolding angle as a control parameter to determine the locking state. By detecting when the second body reaches a specific unfolding angle, the locking mechanism changes its state accordingly, enabling rotation only under controlled conditions while preventing accidental damage at other angles.
2Reliability
If a locking mechanism is added to prevent accidental rotation, then device safety is improved, but the structure becomes more complex
Solution Approach 1:
The locking structure is integrated into the existing pivot connection between the first and second bodies. The locking components (locking member, stopper, limiting member) are combined with the pivot structure itself, sharing common elements like the base and pivot axes, thereby reducing overall system complexity while providing the needed safety function.
Solution Approach 2:
The locking mechanism operates automatically based on the unfolding angle without requiring user intervention. The stopper and locking member interact through the movement of the first and second components to autonomously engage or disengage the locking state, simplifying operation while maintaining reliability.
Data Source
AI summary
An electronic device includes a first body, a second body, a first pivot structure, a second pivot structure, and a locking structure not in contact with the second pivot structure. The second pivot structure is pivoted to the first body along a first axis through the first pivot structure. The second body is pivoted to the first pivot structure along a second axis through the second pivot structure. When the second body is unfolded to an open position along the first axis, the first pivot structure drives the locking structure to go to an unlocked state, and the second body is adapted to rotate along the second axis. When the second body is folded or unfolded to other positions along the first axis, the first pivot structure drives the locking structure to go to a locked state, and the locking structure stops the second body rotating along the second axis.