Sounding Device Air Circulation for Mobile Heat Dissipation

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Solution Overview

Problem

Mobile phone components generate excessive heat due to increased internal components, affecting functionality and stability, and existing heat dissipation methods are inadequate.

Innovation Solution

A sounding device with a housing body, speaker unit, one-way inlet valve, and one-way outlet valve that creates air circulation by introducing and discharging air through the back cavity, utilizing diaphragms and air channels to facilitate heat dissipation without additional cooling devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional components are added to mobile phones to increase functionality, then the diversity of functions is improved, but the internal heat generation increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidinternal heat
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The sounding device's diaphragm vibration mechanism is made to serve dual purposes: its primary function of producing sound and a secondary function of driving air circulation for heat dissipation. This multi-functionality approach allows the same component to address both sound production and thermal management needs.

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

Solution Approach 2:

The air circulation system is merged with the existing sounding device structure by integrating inlet and outlet valves into the housing body and utilizing the back cavity as part of both the acoustic and thermal management systems. This combines previously separate functions into a unified structure.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple components are added to mobile phones, then the functionality is improved, but the stability deteriorates due to overtemperature

Engineering Contradiction:
ImprovefunctionalityVSAvoidstability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The harmful heat generated by multiple components is converted into a beneficial driving force for air circulation. The heat creates temperature differences that drive natural convection currents, which in turn enhance cooling and improve system stability.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Device complexity

If traditional heat dissipation methods are used, then the structure is simple, but the heat dissipation performance is insufficient

Engineering Contradiction:
ImprovestructureVSAvoidheat dissipation performance
Core Design Contradiction:
Device complexityVSTemperature

Solution Approach 1:

The diaphragm's mechanical vibration, originally intended solely for sound production, is utilized to drive air movement within the housing. This vibration-induced air circulation enhances heat dissipation without requiring additional active cooling components.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The system uses its own operational characteristics (diaphragm vibration during sound production) to automatically drive the heat dissipation process. No external power source or additional control mechanism is needed - the sounding operation itself provides the driving force for cooling.

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 air circulation mechanism effectively dissipates heat generated by mobile phone components, improving the device's performance and stability by utilizing the vibration of the diaphragm to draw in and expel air, thus enhancing cooling without requiring external heat dissipation devices.

Implementation Method 1

the speaker unit comprises a diaphragm for partitioning the accommodating space into a front cavity and a back cavity; the one-way inlet valve communicates the outside and the back cavity for introducing air into the back cavity when the volume of the back cavity is increased through vibration of the diaphragm

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

when the volume of the back cavity is increased through vibration of the diaphragm; the one-way outlet valve communicates the back cavity and the outside for discharging the air in the back cavity outside when the volume of the back cavity is reduced through the vibration of the diaphragm

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 3

a one-way inlet valve and a one-way outlet valve fixed on the housing body; the one-way inlet valve communicates the outside and the back cavity for introducing air into the back cavity; the one-way outlet valve communicates the back cavity and the outside for discharging the air in the back cavity outside

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS11540417B2Sounding device and mobile terminal
Publication Date: 2022.12.27 AAC TECHNOLOGIES PTE LTD
  • US11540417B2 patent drawing
  • US11540417B2 patent drawing
  • US11540417B2 patent drawing

AI summary

The invention provides a sounding device. The sounding device comprises a housing body with an accommodating space, a one-way inlet valve and a one-way outlet valve. A speaker unit partitions the accommodating space into a front cavity and a back cavity. The one-way inlet valve communicates the outside and the back cavity and is used for introducing air into the back cavity. The one-way outlet valve communicates the back cavity and the outside and is used for discharging the air in the back cavity outside. A first through hole communicating the outside and the back cavity is formed in the housing body. The invention also provides a mobile terminal. Compared with the related art, the sounding device and the mobile terminal of the invention have better reliability and better performance.