Safety Earphone Device Radiation Isolation
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Solution Overview
Problem
Conventional earphones fail to adequately protect users from harmful electromagnetic radiation and thermal energy emitted by mobile devices, leading to health issues such as headaches and dizziness, while also lacking in sound quality due to inadequate sound wave transmission channels and frequency response.
Innovation Solution
The design separates loudspeakers from earphones, incorporating sound wave transmission channels and sound cavities to efficiently collect and transmit sound waves, with a sealing mechanism to reduce radiation exposure and improve frequency response, and a switch to allow phone use at a distance, ensuring reduced radiation intensity and enhanced stereo effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If common earphones with directly mounted speakers are used, then ease of operation is improved, but harmful radiation exposure increases
Solution Approach 1:
The earphone device is divided into separate functional modules: a main body containing the speaker and a separate earphone head connected via an insulating sound transmission wire. This segmentation isolates the radiation source (speaker) from the user's ear, reducing electromagnetic radiation exposure while maintaining ease of use.
Solution Approach 2:
An insulating material wire is introduced as an intermediary between the speaker and the earphone head. This intermediary component transmits sound waves while blocking electromagnetic radiation and thermal energy, thus reducing harmful radiation exposure to the user.
2Object-affected harmful factors
If existing radiation-proof earphones with short sound wave channels are used, then electromagnetic radiation is reduced, but frequency response deteriorates
Solution Approach 1:
The sound wave transmission channel length is optimized to specific ranges (10-50cm or 50-100cm) and the sound cavity volume is set to 100-500cm³ or 500-1000cm³. These parameter changes improve frequency response quality while maintaining the radiation-proof characteristics achieved through the insulating wire.
3Manufacturing precision
If sound collecting cavity is added to improve frequency response, then sound quality is improved, but device complexity increases
Solution Approach 1:
The sound collecting cavity is integrated into the earphone head structure, merging the sound collection function with the existing housing. This combining approach improves frequency response by efficiently collecting sound waves from the insulating wire while minimizing additional structural complexity.
4Device complexity
If speaker and microphone are placed in the same main body, then device complexity is reduced, but sound wave interference increases
Solution Approach 1:
The microphone is extracted from the main body and relocated to the earphone head, separating it from the speaker. This extraction eliminates sound wave interference between the speaker and microphone while maintaining relatively simple device structure through the modular design.
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 effectively reduces electromagnetic radiation intensity to 2mG or less, improves sound quality by minimizing power loss and distortion, and provides a safer, more effective stereo experience by isolating the microphone from speaker interference.
Implementation Method 1
the sound produced by the micro loudspeaker are transmitted into people's ears via the sound wave transmission channels and sound cavity body
Implementation Method 2
reduce the harm caused by many kinds of radiation rays such as super high frequency magnetic field, and electric wave and thermal energy
Data Source
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AI summary
A safe earplug for radiation protection, comprises earplug heads (1A, 1B), sound cavities (2A, 2B), sound wave transmission channels (3A, 3B), a main body (4), a conductor (8) and a plug 9, wherein the channels (3A, 3B) are set between the sound cavities (2A, 2B) and loudspeakers (5A, 5B). the sound collecting cavities (10A, 10B) are between the loudspeakers (5A, 5B) and the sound wave transmission channels (3A, 3B), assembly of the loudspeakers (5A, 5B), the sound collecting cavities 10A, 10B and the sound wave transmission channels (3A, 3B) are sealed to form a sealed small boxes (11A, 11B) in the main body (4). the shape of sound collecting cavities (10A, 10B) is of taper shape. The sound wave is transmitted to the two sound wave channels (3A, 3B) via the sound collecting cavities (10A, 10B) and then is provided to the ears plugged with two earplugs for listening. The safe earplug is used for high frequency magnetic field and intense radiation communication device such as a mobile phone.