Electronic Device Cover With Rotatable Magnetic Strap Fixation

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Solution Overview

Problem

Existing electronic device covers that provide protection and angle fixation increase the thickness and weight by requiring separate injection-molded materials, and may cause the device to be dropped during carrying.

Innovation Solution

A strap is attached to the electronic device cover, allowing for angle fixation without additional components, using a rotatable design and magnetic coupling for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a separate injection-molded material is attached to the cover to enable angle fixation, then the stand function is available, but the thickness and weight of the cover increase

Engineering Contradiction:
Improvestand functionVSAvoidthickness of cover
Core Design Contradiction:
Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The patent combines the stand function with the existing cover structure by integrating a rotatable strap into the cover assembly. The strap is attached to the cover and can be rotated to different positions, allowing the cover to function as a stand without requiring separate injection-molded materials. This merging of functions resolves the contradiction by achieving adaptability while avoiding increased thickness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover assembly is designed to perform multiple functions: protection, angle fixation, and carrying. The rotatable strap serves as a multi-functional element that enables both the stand function and secure carrying. By making the cover universal in its capabilities without adding separate components, the patent resolves the contradiction between versatility and thickness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a separate injection-molded material is attached to the cover to enable angle fixation, then the stand function is available, but the weight of the cover increases

Engineering Contradiction:
Improvestand functionVSAvoidweight of cover
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent merges the stand function with the existing cover structure using a rotatable strap that is integrated into the cover assembly. This eliminates the need for separate injection-molded materials, thereby achieving the stand function without increasing the weight of the cover.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a flexible strap structure that can be rotated and positioned to provide stand functionality. This flexible element replaces rigid injection-molded materials, reducing the overall weight while maintaining the required adaptability for angle fixation.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If the cover is designed for secure carrying, then the user may carry the device safely, but the user may drop the device while carrying it

Engineering Contradiction:
Improveprotection during carryingVSAvoidconvenience during carrying
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a rotatable strap that can dynamically adjust to different positions and orientations. This dynamic element allows the user to easily adjust the carrying position and angle, improving ease of operation while maintaining secure attachment through the rotatable connection mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotatable strap enables changes in the carrying parameters (angle, position, orientation) without compromising the secure attachment. The user can adjust the strap to different angles and positions based on carrying preferences, improving convenience while the magnetic coupling maintains reliable attachment throughout the range of motion.

Inventive Principle:
Principle #35Parameter changes

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 solution provides secure angle fixation and prevents dropping, reducing the cover's thickness without additional weight, enhancing user convenience and safety.

Implementation Method 1

a magnetic coupling between a first magnetic body and a second magnetic body

Methodology Applied
Scientific EffectMagnetic coupling: Magnetism

Data Source

PatentEP4378348B1Cover of electronic device
Publication Date: 2025.10.01 SAMSUNG ELECTRONICS CO LTD
  • EP4378348B1 patent drawingFigure 1
  • EP4378348B1 patent drawingFigure 2
  • EP4378348B1 patent drawingFigure 3

AI summary

An electronic device, according to various embodiments of the present disclosure, may comprise: a first cover fixing the electronic device; a second cover rotatably connected to the first cover; and a strap having one end connected to the first cover, wherein the strap includes: a first region including a first end rotatably connected to the first cover; a second region including a first magnetic body and including a second end portion which is at least partially bendable; and a third region connecting the first region and the second region, wherein the second cover may include a second magnetic body positioned at an end portion of the second cover and configured to be magnetically coupled to the first magnetic body.