Speaker Module Enclosure Layout for Thin Device Venting
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Solution Overview
Problem
The increasing complexity and slimness of electronic devices have made it difficult to accommodate components efficiently, particularly due to the need for space optimization and protection of vibration motors and speakers.
Innovation Solution
The electronic device incorporates a housing with a speaker hole, a vibration motor structure, an enclosure, a sound absorbing structure, and a protection structure, where the protection structure is spaced apart from the side surface by a gap smaller than the sound absorbing structure, and is made of materials like sponge, mesh, rubber, or plastic, to prevent ventilation blockage and enhance resonance space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the electronic device is made thinner to satisfy consumer needs, then the device becomes slimmer, but the space for accommodating electronic components is insufficient
Solution Approach 1:
The vibration motor structure is nested within the enclosure that also houses the speaker, with the motor positioned adjacent to the speaker and integrated into the same spatial volume. This nested arrangement allows both components to share the limited internal space efficiently, enabling the device to remain thin while accommodating multiple components.
Solution Approach 2:
The motor ventilation hole is formed through the side surface of the vibration motor structure, utilizing the lateral dimension for ventilation rather than requiring additional internal space. This dimensional approach allows the ventilation function to be integrated without compromising the thin profile or reducing the available component space.
2Adaptability or versatility
If the number of components is increased to provide complex functionality, then the device provides more functions, but the accommodation space for components becomes insufficient
Solution Approach 1:
The vibration motor structure and speaker are merged into a single integrated assembly within the same enclosure, sharing common structural elements and spatial volume. This merging reduces the total space required compared to having separate housings for each component, allowing the device to accommodate more functionality within the same form factor.
Solution Approach 2:
The enclosure serves multiple functions: it houses both the speaker and vibration motor structure, provides structural support, and integrates the motor ventilation system. This multi-functionality reduces the need for additional separate components, effectively increasing the device's functional capacity without requiring proportional increases in accommodation space.
3Volume of moving object
If the protection structure is placed close to the vibration motor structure, then space is optimized, but the sound absorbing structure may block the motor ventilation hole
Solution Approach 1:
The protection structure acts as an intermediary element positioned between the sound absorbing structure and the motor ventilation hole. It is spaced apart from the vibration motor structure by a gap smaller than the sound absorbing structure, creating a protective barrier that prevents the sound absorbing material from blocking the ventilation hole while still optimizing space utilization.
Solution Approach 2:
The protection structure is pre-positioned to overlap the motor ventilation hole before the sound absorbing structure is installed. This preliminary placement ensures that the ventilation path is protected in advance, preventing potential blockage by the sound absorbing material while maintaining compact spacing.
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 configuration optimizes accommodation space, reduces manufacturing costs, improves speaker performance, and prevents defects and deterioration of low-band performance by protecting the vibration motor module.
Implementation Method 1
a sound absorbing structure provided in the enclosure
Implementation Method 2
a vibration motor structure provided adjacent the speaker
Data Source
AI summary
An electronic device is provided. The electronic device includes: a housing at least partially surrounding a space between a front surface and a rear surface of the electronic device, and including a side structure through which a speaker hole is formed; a speaker configured to emit a sound signal through the speaker hole; a vibration motor structure provided adjacent the speaker, and including a plurality of side surfaces, wherein a motor ventilation hole is formed through a first side surface of the plurality of side surfaces; an enclosure provided in the housing, and surrounding at least a portion of the speaker and at least a portion of the vibration motor structure; a sound absorbing structure provided in the enclosure; and a protection structure provided in the enclosure, and overlapping at least a portion of the motor ventilation hole.