Synchronous Rotation Mechanism With Helical Slots for Compact Foldables
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Solution Overview
Problem
Conventional foldable screen mobile phones face challenges in miniaturization due to large rotating shaft mechanisms, which hinder the development of compact designs and user experience.
Innovation Solution
A synchronous rotation mechanism utilizing sliding members with helical slots and torque swing arms, connected by shaft sleeves and cylinder shafts, allows for compact design and synchronous rotation of foldable screens, reducing the overall size of the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional rotating shaft mechanisms are used in foldable screen mobile phones, then the rotation function of the foldable screen can be achieved, but the device size becomes large and miniaturization is hindered
Solution Approach 1:
The patent divides the rotation mechanism into multiple independent components: a first rotating component for the first screen, a second rotating component for the second screen, and a connecting component that couples them. This segmentation allows each component to be miniaturized while maintaining the overall rotation function and synchronous operation capability.
Solution Approach 2:
The connecting component is designed to be integrated with the rotating components in a nested manner, where the connecting component couples the first and second rotating components together. This nesting approach reduces the overall volume of the rotation mechanism by eliminating separate mounting structures and reducing the space required for each individual component.
2Volume of moving object
If the rotating shaft mechanism size is reduced for miniaturization, then device compactness is improved, but ensuring synchronous rotation of left and right screens becomes difficult
Solution Approach 1:
The patent merges the rotation control of the first and second screens by coupling their respective rotating components through a connecting component. This merging ensures that when one screen rotates, the other screen rotates synchronously, maintaining ease of operation despite the reduced size of individual components.
Solution Approach 2:
The connecting component acts as an intermediary between the first and second rotating components. It transmits rotational motion and ensures synchronous operation while allowing the individual rotating components to be miniaturized. The intermediary component maintains the functional relationship between the two screens without requiring large individual rotating mechanisms.
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 mechanism effectively reduces the space occupied by the rotation mechanism, enabling miniaturization of foldable electronic devices while ensuring synchronous rotation, thus enhancing user experience and hardware performance.
Implementation Method 1
a first helical slot and a second helical slot are respectively provided on two sides of the sliding member; and a first torque swing arm and a second torque swing arm, respectively located at the two sides of the sliding member. The first torque swing arm is provided with a first slider, and the first slider is accommodated in the first helical slot, so that the first slider slides along the first helical slot when the first torque swing arm rotates
Implementation Method 2
The second torque swing arm is provided with a second slider, and the second slider is accommodated in the second helical slot, so that the second slider slides along the second helical slot when the second torque swing arm rotates
Data Source
AI summary
This application discloses a synchronous rotation mechanism and a foldable electronic device, and relates to the field of electronic device technologies. The synchronous rotation mechanism is used in a foldable electronic device. The synchronous rotation mechanism includes torque swing arms and a sliding member. The torque swing arms on two sides of the sliding member are connected by the sliding member. The torque swing arms are rotatably connected to the sliding member by sliders and helical slots, so that when the torque swing arm on one side rotates, the slider and the helical slot synchronously drive the sliding member to slide in a direction perpendicular to rotation of the torque swing arm, and then to drive the torque swing arm on another side to rotate synchronously.