Earbud Charging Case With Rotatable Mobile-Terminal Support

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Solution Overview

Problem

Charging cases for wireless earbuds primarily function for storage and charging, lacking the ability to support mobile terminals.

Innovation Solution

Incorporating a rotatable support member in the charging case that can transition between a storage and support position, allowing the case to support a mobile terminal when opened and be stored within the case when closed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a charging case is designed only for storing and charging earbuds, then the structure remains simple and compact, but the functionality is limited and cannot support mobile terminals

Engineering Contradiction:
ImprovefunctionalityVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The charging case is designed to perform multiple functions: it serves as a storage case for earbuds, a charging device for earbuds, and a support stand for mobile terminals. The support member enables the case to function as a mobile terminal support when extended, transforming a single-function device into a multi-functional one without requiring a separate stand product

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

Solution Approach 2:

The support member is designed to be rotatable relative to the body, allowing it to dynamically change between a retracted state (when not in use) and an extended state (when supporting a mobile terminal). This dynamic structure enables the charging case to adapt its configuration based on whether it needs to store earbuds or support a mobile terminal

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a support member is added to enable mobile terminal support, then the versatility of the charging case is improved, but the device complexity increases

Engineering Contradiction:
Improvemulti-functionalityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support function is merged into the existing charging case structure by integrating the support member directly onto the body. Rather than adding a completely separate support device, the support functionality is combined with the storage and charging functions in a single integrated unit

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support member is designed to be nestable within the body when not in use. The support member can be rotated and stored inside the charging case body, allowing the structure to maintain a compact form factor when the support function is not needed, similar to a nested doll configuration

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP4626023A1Charging case for earbuds, and earbud system
Publication Date: 2025.10.01 ANKER INNOVATIONS TECH CO LTD
  • EP4626023A1 patent drawingFigure 1~2
  • EP4626023A1 patent drawingFigure 3~4
  • EP4626023A1 patent drawingFigure 5~6

AI summary

Disclosed are a charging case for earbuds and an earbud system. The charging case includes a body configured to accommodate the earbuds; a lid rotatably connected to the body and having an open position in which the charging case is opened and a closed position in which the charging case is closed; and a support member rotatably provided on the body and rotatable relative to the body between a storage position and a support position. The support member at least partially protrudes from the body at the support position and is stored in the body at the storage position. The support member forms a first pivot point at the support position, the lid forms a second pivot point at the open position, and the first pivot point and the second pivot point jointly support a mobile terminal. By the above means, the charging case for earbuds of the present disclosure case can be used for supporting the mobile terminal when opened. (Fig. 1)