Rotatable Earphone Assembly for Smart Glasses Charging

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Wireless earphones have insufficient battery life and require charging in a separate earphone box, preventing users from using them during the charging process.

Innovation Solution

A wearable device assembly featuring a rotatable wireless earphone body that connects to smart glasses for charging and data transfer, allowing the earphone to be used during charging by switching between positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If wireless earphones are placed in an earphone box for charging, then battery capacity and endurance are improved, but users cannot wear and use the wireless earphones during charging

Engineering Contradiction:

ImproveenduranceVSAvoidusability during charging

Core Design Contradiction:

Duration of action of moving objectVSEase of operation

Solution Approach 1:

The system is divided into three independent components: wireless earphones, charging case, and smart glasses. The charging function is segmented from the earphone box and relocated to the smart glasses, allowing the earphones to be used independently while charging occurs through a different device.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The smart glasses act as an intermediary charging device between the power source and the wireless earphones. Instead of charging the earphones directly in a box, the smart glasses serve as a mobile charging station that can simultaneously charge the earphones while the user wears them.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If functions are integrated on wireless earphones, then functionality is improved, but power consumption increases

Engineering Contradiction:

ImprovefunctionalityVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The charging function is extracted from the traditional earphone box concept and relocated to the smart glasses. This allows the wireless earphones to maintain their integrated functions while the charging capability is provided by an external device (smart glasses) that the user already wears.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The smart glasses are designed to serve multiple functions: they act as a charging device for the wireless earphones, provide data transfer capability, and function as a wearable accessory. This multi-functionality reduces the need for additional dedicated charging equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Volume of moving object

If batteries on wireless earphones are made smaller to reduce size, then compactness is improved, but battery capacity and endurance are reduced

Engineering Contradiction:

ImprovesizeVSAvoidendurance

Core Design Contradiction:

Volume of moving objectVSDuration of action of moving object

Solution Approach 1:

The charging capability is moved from the horizontal dimension (earphone box) to the vertical dimension (smart glasses worn on the user). This spatial reorganization allows the earphones to remain small while providing charging capability through a different spatial arrangement - the smart glasses serve as a portable charging station.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The smart glasses are equipped with a battery in advance, preparing a charging source before needed. When the wireless earphones need charging, the user simply brings them close to the smart glasses, and charging begins automatically without requiring a separate charging box or cable.

Inventive Principle:

Principle #10Preliminary action

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

Enables continuous use of wireless earphones during charging, improving user experience by integrating a larger battery capacity in the smart glasses for extended endurance and stable electrical connections.

Implementation Method 1

the first electrical connection part and the second electrical connection part are electrically connected

Methodology Applied

Scientific EffectElectrical connection: Conduction (electrical)

Implementation Method 2

The earphone body is rotatably connected to the speaker part, so as to change a position of the first electrical connection part

Methodology Applied

Scientific EffectRotational motion:

Data Source

PatentEP4171059B1Wearable device assembly

Publication Date: 2025.08.06 VIVO MOBILE COMM CO LTD

Figure 1
Figure 2~3
Figure 4

AI summary

Disclosed in this application is a wearable device assembly. The disclosed wearable device assembly includes a wireless earphone and smart glasses. The wireless earphone includes an earphone body and a speaker part. The earphone body is rotatably connected to the speaker part. The earphone body is rotatably switched between a first position and a second position relative to the speaker part. The earphone body is provided with a first electrical connection part. The smart glasses include glasses legs and a battery module. One of the glasses legs is provided with a second electrical connection part, and the second electrical connection part is electrically connected to the battery module. In a case that the earphone body is located at the first position, the earphone body is separated from a glasses leg. In a case that the earphone body is located at the second position, the earphone body is connected to the glasses leg, and the first electrical connection part is electrically connected to the second electrical connection part.