Foldable Hinge Shielding Assembly to Prevent Side Cover Disengagement

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Solution Overview

Problem

In foldable devices, the shielding assembly is prone to disengagement from the side cover when transitioning between folded and unfolded states, affecting the appearance and potentially causing damage due to warping.

Innovation Solution

A foldable device design that includes a shielding member with a reserved interval between its sections and a limiting structure to prevent disengagement from the side cover, allowing movement without warping and maintaining the device's appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the shielding member is made to fit tightly against the side cover to prevent gaps, then the appearance is improved, but the shielding member is prone to disengagement when the device is folded

Engineering Contradiction:
ImproveappearanceVSAvoidengagement stability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The shielding member is divided into a first section covered by the side cover and a second section exposed at the end portion. This segmentation allows the first section to maintain tight contact with the side cover for appearance while the second section provides engagement stability through the limiting structure, resolving the contradiction between appearance and reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The limiting structure acts as an intermediary element between the shielding member and the side cover. It prevents the first section from disengaging by providing a mechanical stop, while still allowing the shielding member to maintain its position for appearance purposes, thus resolving the contradiction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the shielding member is allowed to move freely to accommodate folding motion, then the device can transition between states smoothly, but the shielding member may warp or disengage

Engineering Contradiction:
Improvetransition smoothnessVSAvoidshielding member position
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The shielding member is designed with dynamic characteristics, where the first section can move within limits while the second section maintains engagement. The limiting structure provides controlled movement, allowing smooth transition between folded and unfolded states while preventing warping or disengagement, thus resolving the contradiction between ease of operation and stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shielding member's position parameters are controlled through the limiting structure. The first section can move within a defined range during folding/ unfolding, but the limiting structure changes the parameter by preventing excessive movement that would cause warping or disengagement, thus resolving the contradiction.

Inventive Principle:
Principle #35Parameter changes

3Area of stationary object

If the first section is made larger to improve coverage, then the appearance is improved, but the risk of disengagement increases

Engineering Contradiction:
Improvecoverage areaVSAvoiddisengagement resistance
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The shielding member is segmented into a first section for coverage and a second section for engagement. By separating these functions into different sections, the first section can be made larger for improved appearance while the second section maintains reliability through the limiting structure, resolving the contradiction between coverage area and disengagement resistance.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250370507A1Foldable device
Publication Date: 2025.12.04 HONOR DEVICE CO LTD
  • US20250370507A1 patent drawing
  • US20250370507A1 patent drawing
  • US20250370507A1 patent drawing

AI summary

Embodiments of this application provide a foldable device. an edge of a structural member rotationally connected to a rotating shaft mechanism is provided with a side cover, and an end portion of the rotating shaft mechanism is provided with a shielding assembly. A shape of part of a shielding member of the shielding assembly covered by the side cover is improved, so that the part of the shielding member covered by the side cover is not prone to movement towards an inner side edge of the shielding member, or an interval for the shielding member to move is reserved between the part of the shielding member covered by the side cover and an inner side edge of the side cover.