Earphone Air Release Valve for Diaphragm Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing headphones with moving coil type vibrating diaphragms are prone to deformation or permanent damage due to pressure shock waves generated during wear and transportation, which affects sound quality.
Innovation Solution
Incorporating an air release valve system with a hemispherical silicone diaphragm and air release tube to automatically discharge pressure waves, reducing airflow interference and protecting the vibrating diaphragm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vibrating diaphragm is made thinner to improve sound quality, then the hearing sense is improved, but the diaphragm becomes more fragile and susceptible to damage from pressure shock waves
Solution Approach 1:
The patent introduces an air release valve as an intermediary component between the sound chamber cavity and the external environment. This valve mediates the pressure shock waves by providing a controlled release path, protecting the thin vibrating diaphragm from direct impact while maintaining the thin diaphragm design for high sound quality.
Solution Approach 2:
The air release valve is positioned and configured to activate before pressure shock waves can reach the vibrating diaphragm. The valve provides advance protection by releasing pressure buildup in the sound chamber cavity before it can transmit damaging forces to the fragile thin diaphragm.
2Measurement precision
If the ear pad is designed to form a closed space for better sound isolation, then sound quality is improved, but pressure shock waves are trapped and can damage the vibrating diaphragm
Solution Approach 1:
The patent extracts the harmful pressure shock waves from the closed sound chamber cavity by providing an air release valve. This allows the ear pad to maintain its closed-space design for sound isolation while the valve selectively removes harmful pressure waves that would otherwise damage the diaphragm.
Solution Approach 2:
The air release valve converts the harmful trapped pressure shock waves into a beneficial controlled release mechanism. The valve transforms the potential damage from closed-space pressure buildup into a protective feature that actively manages pressure while maintaining the closed-space acoustic benefits.
3Reliability
If the air release hole is opened to release pressure waves, then diaphragm protection is improved, but sound purity may be compromised due to airflow interference
Solution Approach 1:
The air release valve is designed to be dynamic rather than permanently open. It automatically opens only when pressure shock waves are present and closes during normal operation. This dynamic behavior allows the system to protect the diaphragm when needed while maintaining sound purity during normal listening by preventing continuous airflow interference.
Solution Approach 2:
The air release valve is designed to automatically sense and respond to pressure changes without external control. The valve self-activates when pressure shock waves are detected and self-closes when pressure normalizes, providing automatic protection while minimizing interference with sound quality during normal operation.
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 release valve system enhances sound purity and reduces the risk of diaphragm damage, providing a better hearing experience by mitigating pressure shock waves during wear and transportation.
Implementation Method 1
the sealing mechanism is a hemispherical-shaped silicone diaphragm which is opened at one end and closed at the other end and has the elastic resilience
Implementation Method 2
the sealing mechanism is a seal ball that can free move in the vertical section... when the user wears the earphone, the vertical section is vertical, and the seal ball falls into the outlet and seals the outlet under the gravity
Data Source
AI summary
The utility model relates to an earphone with air release valve, comprising a shell, the shell is provided with an earphone rear cavity for accommodating a sounding unit, the sounding unit is placed in the earphone rear cavity and fixedly connected with the shell, the side of the shell facing the human ear is connected with an ear pad, the earphone is provided with an air release hole on the earphone shell between the earphone rear cavity and the earphone sound chamber cavity, and the air release hole is provided with an air release valve which automatically opens due to the increase of pressure. Therefore, when the people wear the earphone or transmit the earphone, the instantaneous pressure wave produced in the sound chamber cavity can be discharged from the air release valve. As for the earphone of the utility model, the vibrating diaphragm is less affected by the airflow interference such that the earphone is characterized by higher sound purity and better hearing experience compared with those earphones only having the air release hole rather than the valve.