Power Pack Vibration Counterweight for Haptic Feedback

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Solution Overview

Problem

Existing portable electronic devices face challenges in providing effective haptic feedback and vibration functionality, particularly in ensuring the display screen is securely mounted to prevent contamination and maintain integrity during drops, while also needing a counterweight for vibration.

Innovation Solution

A portable electronic device design where the power pack serves as a vibration counterweight, utilizing actuators such as piezoelectric or electromagnets to move the power pack relative to the housing, allowing for effective vibration without compromising the display's secure mounting and sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display screen is mounted loosely to allow vibration, then haptic feedback capability is improved, but device reliability and contamination resistance deteriorate

Engineering Contradiction:

Improvehaptic feedback capabilityVSAvoiddevice reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The device is divided into two separate vibration systems: a first counterweight (display screen) that can vibrate loosely for haptic feedback, and a second counterweight (power pack) that is securely mounted for reliable vibration. This segmentation allows each component to have different mounting characteristics optimized for their specific functions, resolving the contradiction between loose mounting for haptics and secure mounting for reliability.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the display screen is mounted loosely to vibrate, then vibration functionality is improved, but contamination risk increases

Engineering Contradiction:

Improvevibration functionalityVSAvoidcontamination risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

By separating the vibration function into two counterweights with different mounting characteristics, the display screen can vibrate freely for haptic feedback while the securely mounted power pack provides stable vibration without exposure to contaminants, thus achieving vibration functionality while reducing contamination risk.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The power pack acts as an intermediary vibration source that is securely mounted and protected from contaminants, while still contributing to the overall vibration functionality of the device through its secure mounting and actuator system.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If a separate counterweight is added for vibration, then vibration effectiveness is improved, but device weight and volume increase

Engineering Contradiction:

Improvevibration effectivenessVSAvoiddevice weight

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The power pack is designed to serve dual functions: providing power to the device and acting as a vibration counterweight. By integrating these two functions into a single component, the need for a separate dedicated counterweight is eliminated, thus improving vibration effectiveness without adding extra weight or volume.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The power pack and counterweight functions are merged into a single integrated component. This combination allows the power pack to fulfill both its power supply role and its vibration counterweight role, achieving effective vibration without the penalty of additional weight and volume that would result from a separate counterweight.

Inventive Principle:

Principle #5Merging (Combining)

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

This design enhances the device's reliability in drop tests by securely mounting the display, reduces contamination risk, and efficiently uses the power pack as a counterweight, providing noticeable vibrations without adding unnecessary weight or space, while maintaining strong functionality and integrity.

Implementation Method 1

piezoelectric actuators are mounted on an underside of a display screen to vibrate the display screen

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

utilizing actuators such as piezoelectric or electromagnets to move the power pack relative to the housing

Methodology Applied

Scientific EffectElectromagnetic effect: Electromagnetic Induction

Data Source

PatentUS8279623B2Apparatus for vibrating a portable electronic device

Publication Date: 2012.10.02 MALIKIE INNOVATIONS LTD

AI summary

A portable electronic device includes: a housing, a power pack received in the housing, and an actuator disposed between the power pack and a component of the portable electronic device, the component being in a fixed position relative to the housing, wherein the actuator imparts a force on the power pack to move the power pack relative to the housing.