Antenna-Speaker Assembly Sound Absorption
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Solution Overview
Problem
Existing antenna-speaker assemblies in mobile communication devices face challenges in achieving clear sound quality due to gaps between the antenna and speaker units, high production costs, and inefficient coupling methods like ultrasonic fusion and bond adhesion, which affect sound clarity and increase manufacturing time.
Innovation Solution
An antenna-speaker assembly is designed with a sound-absorbing part made of thermoplastic elastomer (TPE) interposed between the antenna and speaker units, using projections and fastening rings for coupling, and integrally formed through dual injection molding to prevent sound leakage and improve assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If ultrasonic fusion is used to couple the antenna unit and speaker unit, then the coupling strength is improved, but the speaker is damaged due to ultrasonic influence and production cost increases
Solution Approach 1:
A sound-absorbing part made of TPE material is introduced as an intermediary component between the antenna unit and speaker unit. This intermediary part achieves reliable coupling without requiring ultrasonic fusion, thereby preventing speaker damage while maintaining strong adhesion through its elastic properties and bonding capabilities.
2Strength
If bond adhesion is used to couple the antenna unit and speaker unit, then the coupling is achieved, but production time is excessively long and uniform bond coating is difficult
Solution Approach 1:
The sound-absorbing part combines multiple functions into a single component: it provides coupling adhesion, absorbs sound waves, and eliminates the need for separate bonding processes. This merging of functions reduces production steps and improves manufacturing efficiency while maintaining reliable coupling.
3Device complexity
If the antenna unit and speaker unit are coupled without a sound-absorbing part, then the assembly is simple, but sound leaks through gaps causing poor sound quality
Solution Approach 1:
The sound-absorbing part is strategically placed at the coupling interface between the antenna unit and speaker unit, where sound leakage occurs. This localized placement targets the specific problem area without requiring complex modifications elsewhere in the assembly, maintaining simplicity while improving sound quality.
4Stability of the object's composition
If the radiation patch is attached to the bottom of the speaker bottom, then the antenna and speaker are integrally formed, but the shape of the radiation patch is limited and resonant frequency adjustment is difficult
Solution Approach 1:
The antenna system is segmented into a separate antenna unit with its own radiator and dielectric material, independent of the speaker unit. This segmentation allows the antenna unit to be designed and tuned for specific resonant frequencies without being constrained by the speaker bottom shape, while still achieving integral formation through coupling.
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 provides clear sound transmission, reduces manufacturing costs and time, and enhances sound quality by eliminating gaps and simplifying the assembly process, while allowing for flexible antenna design and miniaturization of mobile devices.
Implementation Method 1
a sound-absorbing part formed to conform to a circumference of a coupling surface of the antenna unit and the speaker unit, the sound-absorbing part being interposed between the antenna unit and the speaker unit
Implementation Method 2
The sound-absorbing material is preferably integrally formed with the antenna unit or the speaker unit by means of dual injection molding
Data Source
AI summary
Disclosed is an antenna-speaker assembly, including an antenna unit including a radiator, a speaker unit including a speaker and coupled to the antenna unit, and a sound-absorbing part formed to conform to a circumference of a coupling surface of the antenna unit and the speaker unit, the sound-absorbing part being interposed between the antenna unit and the speaker unit. According to the present invention, the antenna-speaker assembly equipped with the structure of generating clear sound is provided. Furthermore, in a wireless communication device including an antenna-speaker assembly, the antenna-speaker assembly include an antenna unit including a radiator, a speaker unit including a speaker and coupled to the antenna unit, and a sound-absorbing material formed on a circumference of a face where the antenna unit and the speaker unit are coupled in such a manner as to be interposed between the antenna unit and the speaker unit.