Earphone Case Magnetic Cover Alignment Mechanism

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Solution Overview

Problem

Conventional earphone cases with flip cover mechanisms are costly to manufacture due to the use of metal rotating shafts and require manual operation, making them inconvenient to use.

Innovation Solution

An earphone case design featuring a body, storage member, cover, and reset member with magnetic parts that automatically open and align, eliminating the need for manual adjustment by using magnetic attraction to position and rotate the cover.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a metal rotating shaft is used to connect the cover and the box, then the cover can be pivotally connected to the box, but the manufacturing cost increases and the manufacturing process becomes complicated

Engineering Contradiction:
Improvecover connection reliabilityVSAvoidmanufacturing cost and process complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces the traditional metal rotating shaft mechanical connection system with a magnetic field-based connection system. The first magnetic part is disposed on the cover and the second magnetic part is disposed on the box, creating magnetic attraction that replaces the mechanical shaft connection. This substitution eliminates the need for complex mechanical assembly while maintaining the pivotal connection function, thereby reducing manufacturing cost and simplifying the manufacturing process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic parts as an intermediary mechanism between the cover and the box. Instead of direct mechanical contact through a rotating shaft, the magnetic parts act as intermediaries that transmit the connection force through magnetic attraction. This intermediary approach allows for a simpler structural design while achieving the same functional outcome of secure yet movable connection.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If an additional jig is required to assist installation when the cover and the box are being assembled, then the assembly can be completed, but the manufacturing process becomes complicated and cost increases

Engineering Contradiction:
Improveassembly completionVSAvoidmanufacturing process complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The magnetic connection system eliminates the need for additional assembly jigs by replacing complex mechanical alignment requirements with simpler magnetic alignment. The magnetic attraction between the first magnetic part on the cover and the second magnetic part on the box automatically guides and secures the connection, removing the need for external assistance tools and simplifying the overall manufacturing process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If the conventional flip cover method is used, then the cover can be opened and closed, but the operation requires entirely manual operation which is inconvenient to use

Engineering Contradiction:
Improvecover opening and closingVSAvoidmanual operation requirement
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The patent implements a self-service mechanism where the magnetic parts automatically attract and align the cover with the box when brought into proximity. The first magnetic part on the cover and the second magnetic part on the box create an automatic alignment effect that reduces the manual effort required for opening and closing operations. The system serves itself by using magnetic attraction to guide the movement and positioning, making the operation more convenient and intuitive.

Inventive Principle:
Principle #25Self-service

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 automatic opening mechanism reduces manufacturing costs and enhances user convenience by eliminating the need for manual operation, while maintaining secure closure and easy access to stored earphones.

Implementation Method 1

the plurality of first magnetic parts and the plurality of second magnetic parts are magnetically attracted to each other

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS11405710B2Earphone case
Publication Date: 2022.08.02 MERRY ELECTRONICS (SHENZHEN) CO LTD
  • US11405710B2 patent drawing
  • US11405710B2 patent drawing
  • US11405710B2 patent drawing

AI summary

An earphone case includes a body, a storage member, a cover, and a reset member. The body has a chamber and a fixing base. The base is securely disposed in the chamber. The storage member is disposed in the chamber, located above the fixing base, contacted with the body, and has multiple first magnetic parts. The cover is pivotally connected to the storage member and the fixing base, and the cover has multiple second magnetic parts. The reset member is disposed above the fixing base and connected to the body and the storage member respectively. In close mode, the cover completely covers the storage member. The multiple first magnetic parts and second magnetic parts are magnetically attracted to each other. In open mode, the cover is relatively separated from the storage member and rotated at an angle, such that the cover partially overlaps with the storage member.