Rotating Mechanism for Foldable Screen Compactness
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Solution Overview
Problem
Existing foldable electronic devices with outward folding screens are prone to scratches and have a bulky design due to the wide base of the rotating mechanism, which increases the thickness and reduces the compactness of the device in the folded state.
Innovation Solution
A rotating mechanism with a base connected via a first door panel, a main swing arm, and a control assembly that allows for a smaller rotation angle of the swing arm relative to the base, reducing the width of the base and ensuring connection strength through the hinge part, enabling a compact design by allowing the foldable screen to fold into a water drop shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the base of the rotating mechanism is made wide to ensure connection strength, then the structural strength is improved, but the thickness and width of the electronic device in the folded state increase
Solution Approach 1:
The rotating mechanism is divided into multiple components: a base, a door panel, a connector, and a main swing arm. The main swing arm is further segmented into a first section and a second section connected by a hinge shaft. This segmentation allows each component to be optimized independently, enabling the base to be narrower while maintaining overall structural strength through the distributed hinge system.
Solution Approach 2:
The patent introduces a new dimensional arrangement by positioning the hinge shaft in the thickness direction of the base rather than in the width direction. The first section and second section of the main swing arm are arranged in different thickness directions, allowing the mechanism to achieve sufficient structural strength with a narrower base width by utilizing the thickness dimension for structural support.
2Stability of the object's composition
If the base of the rotating mechanism is made wide to ensure connection stability, then the connection stability is improved, but the structure becomes less compact
Solution Approach 1:
The connection system is segmented into multiple hinge joints: one between the door panel and base, another between the connector and door panel, and a third between the two sections of the main swing arm. This segmentation distributes the connection functions across multiple stable joints, allowing each joint to be compact while collectively providing robust connection stability.
Solution Approach 2:
By arranging hinge shafts and swing arm sections in the thickness direction rather than extending in the width direction, the patent achieves connection stability through vertical stacking of functional elements. This dimensional reorganization maintains structural stability while significantly reducing the horizontal footprint and improving overall compactness.
3Length of stationary object
If the rotation angle of the main swing arm is made smaller to reduce base width, then the width of the base is reduced, but the connection strength must be maintained through alternative means
Solution Approach 1:
The main swing arm is segmented into two sections connected by a hinge shaft, creating a folded configuration. This segmentation allows the overall width to be reduced while the connection strength is maintained through the distributed hinge joints that provide multiple load-bearing points across the mechanism.
Solution Approach 2:
The patent utilizes the thickness direction to arrange the hinge shaft and swing arm sections, allowing the mechanism to achieve sufficient connection strength through vertical arrangement rather than horizontal extension. This enables a smaller rotation angle and narrower base width while maintaining structural integrity through the three-dimensional hinge configuration.
Data Source
AI summary
This disclosure relates to the technical field of electronic devices and provides a rotating mechanism, a support apparatus, and an electronic device. The rotating mechanism includes a base, a first door panel, a first connector, and a first main swing arm. The first door panel is hinged to the base, the first connector is hinged to the first door panel, and the first connector is configured to connect a first housing. One end of the first main swing arm is hinged to the base, and the other end of the first swing arm is hinged to the first connector. When the rotating mechanism rotates between an unfolded state and a folded state, a rotation angle of the first main swing arm relative to the base is smaller than a rotation angle of the first door panel relative to the base.