Speaker Module Hinge Integration for Slim Portable Terminals
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Solution Overview
Problem
Portable terminals with slim constructions face challenges in securing sufficient resonance space for high-quality sound output, especially in the low frequency range, due to size constraints, making it difficult to install speaker units and maintain sound volume and uniformity across the audio frequency range.
Innovation Solution
A speaker module with a slim construction that integrates a magnetic body, voice coil, vibration plate, and vibration motor within a module housing, forming resonance spaces between these components to enhance sound output and include a camera unit, allowing for improved sound pressure and volume while maintaining a compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a speaker unit is installed in a portable terminal with a slim construction, then the terminal maintains a compact and portable form factor, but sufficient resonance space cannot be secured, resulting in poor sound quality and insufficient sound volume
Solution Approach 1:
The speaker unit is nested within the hinge assembly structure, utilizing the space between the first and second housings when the terminal is folded. The resonance case is integrated into the hinge assembly, with the speaker unit positioned inside it, effectively nesting components within available space to create sufficient resonance volume without increasing terminal thickness.
Solution Approach 2:
The invention transitions from a two-dimensional planar layout to a three-dimensional spatial utilization by employing the hinge assembly's depth and the folded state's internal volume. The resonance case extends into the space created by the hinge mechanism, utilizing the third dimension (depth/thickness) efficiently to accommodate resonance space without increasing the terminal's external dimensions.
2Volume of moving object
If a separate resonance case is installed to secure sufficient resonance space, then sound quality improves, but the space required for installation increases, making it difficult to fit in slim terminals
Solution Approach 1:
The resonance case is merged with the hinge assembly structure, eliminating the need for a separate, standalone resonance case. The speaker unit, resonance case, and hinge assembly are combined into an integrated unit that utilizes the hinge's internal space, thereby reducing the total installation area required while maintaining sufficient resonance volume for high-quality sound output.
3Length of moving object
If the terminal is designed with a slim construction, then portability and compactness are improved, but it becomes difficult to secure both speaker unit installation space and resonance space
Solution Approach 1:
The speaker module is designed to be dynamically positioned within the hinge assembly, utilizing the movable nature of the hinge to create and utilize resonance space. The resonance case is positioned to take advantage of the hinge's movement range, allowing the system to maintain a slim profile when closed while providing sufficient resonance volume when the hinge is in its operational position.
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 speaker module achieves improved sound quality by distributing sound pressure more smoothly across the audio frequency range, enhancing low-frequency sound output and overall sound quality in portable terminals, while also allowing for the integration of additional components like a vibration motor and camera unit within a small form factor.
Implementation Method 1
a voice coil (133a)
Implementation Method 2
a vibration plate (135)... Vibrate Solid
Implementation Method 3
resonance space has to be secured within the speaker apparatus in order to obtain sufficient sound volume and uniform output of sound
Data Source
AI summary
A speaker module for a portable terminal is provided. The speaker module includes an upper case constituting a part of a module housing, a speaker unit, including a magnetic body, a voice coil and a vibration plate, formed in the upper case and a vibration motor, which is installed in the upper case and on one side of the speaker unit. The speaker module as structured above can secure a sufficient sound pressure and a sound volume in a portable terminal having a slim construction, makes it easier to secure space for installation within a portable terminal having a small size and slim construction in such a manner that a vibration motor, etc. are received and integrated in a module housing, and can improve the quality of sound in a portable terminal by achieving improved smoothness of output sound pressure in an audio frequency range.