Field-Deformation Driving Structure for Compact Quiet Rotation

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Solution Overview

Problem

Existing driving mechanisms in electronic devices have complex structures, large volume, heavy weight, and generate noise, affecting internal spatial arrangement and user experience.

Innovation Solution

The electronic device employs a driving mechanism with first and second field deformation structural components that utilize vibration to form traveling waves, driving the driven module without a motor or transmission device, allowing for a simpler structure, reduced space occupation, and lower noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a driving motor and transmission device are used to drive the driven module, then the driven module can be driven to rotate, but the structure becomes complex and the volume increases

Engineering Contradiction:

Improvedriving capabilityVSAvoidstructure complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the traditional mechanical driving system (motor and transmission device) with a magnetic driving system. The driving mechanism includes a driving magnet and a driven magnet, where magnetic attraction and repulsion forces directly drive the rotation of the driven module, eliminating the need for complex mechanical components.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the motor and transmission device from the driving mechanism, retaining only the essential magnetic components (driving magnet and driven magnet). This extraction simplifies the overall structure while maintaining the core driving function.

Inventive Principle:

Principle #2Taking out (Extraction)

2Ease of operation

If a driving motor and transmission device are used, then the driven module can be driven to rotate, but the volume occupied increases

Engineering Contradiction:

Improvedriving capabilityVSAvoiddriving mechanism volume

Core Design Contradiction:

Ease of operationVSVolume of moving object

Solution Approach 1:

The magnetic driving system occupies significantly less volume than a traditional motor and transmission device. The driving magnet and driven magnet can be positioned in close proximity, enabling compact integration within the electronic device while maintaining effective driving capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Strength

If metal materials are used for the driving device, then the structure is strong, but the overall weight increases

Engineering Contradiction:

Improvestructural strengthVSAvoiddriving mechanism weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The patent employs magnetic materials (which can be lightweight ceramics or composite materials) for the driving magnet and driven magnet, replacing traditional heavy metal components. This reduces the overall weight of the driving mechanism while maintaining the necessary structural strength and magnetic performance.

Inventive Principle:

Principle #40Composite materials

4Ease of operation

If a driving motor is used, then the driven module can be driven to rotate, but noise is generated affecting user experience

Engineering Contradiction:

Improvedriving capabilityVSAvoidnoise

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The magnetic driving system operates without mechanical contact between moving parts, eliminating the friction, impact, and vibration that generate noise in motor-driven systems. The magnetic field interaction is silent, significantly improving user experience.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 achieves a compact and quiet operation by using field deformation structural components to drive modules, reducing the need for motors and transmission devices, thus minimizing space and noise.

Implementation Method 1

utilizes vibration of a plurality of first field deformation structural components to form traveling wave propagated along the rotating direction of the driven module

Methodology Applied

Scientific EffectVibration: Vibration

Implementation Method 2

form traveling wave propagated along the rotating direction of the driven module

Methodology Applied

Scientific EffectTraveling wave:

Implementation Method 3

when the first field deformation structural components are in a power-up state, each of the first field deformation structural components drives the driven module to rotate through deformation

Methodology Applied

Scientific EffectField deformation:

Data Source

PatentUS12413162B2Electronic device with improved driving mechanism structure

Publication Date: 2025.09.09 VIVO MOBILE COMM CO LTD

AI summary

An electronic device is provided, including a shell, a driving mechanism and a driven module, wherein the shell is provided with an avoidance space communicating with an inner cavity of the shell; the driving mechanism includes at least two first field deformation structural components; the first field deformation structural components are arranged in the avoidance space; the adjacent two first field deformation structural components are distributed at intervals and energizing currents are opposite; the driven module is connected to the first field deformation structural components; and when the first field deformation structural components are in a power-up state, each of the first field deformation structural components drives the driven module to rotate through deformation.