Earphone Cap-and-Wing Noise Reduction Cavity for Ear Canal Isolation
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Solution Overview
Problem
In-ear earphones have limited sound isolating effects, allowing external noise to penetrate the ear canal despite the use of earplugs.
Innovation Solution
The earphone design incorporates a cap with a first noise reduction part and a wing with a second noise reduction part, forming a noise reduction cavity that blocks environmental noise, allowing for customizable fitting and improved comfort through detachable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an earplug is inserted into the ear canal to isolate noise, then some noise blocking is achieved, but external noise still easily penetrates the earplug and enters the ear canal
Solution Approach 1:
The earphone system is divided into multiple independent components: a body, a cap with a first noise reduction part, and a wing with a second noise reduction part. This segmentation allows each component to contribute to noise blocking independently, with the first and second noise reduction parts working together to form a more effective barrier against external noise, resolving the insufficient sealing efficacy of a single earplug design.
Solution Approach 2:
The invention adds a spatial dimension to noise blocking by extending the sealing structure from a simple linear earplug insertion to a three-dimensional configuration involving the cap surrounding the sound outlet pipe and the wing surrounding the main housing. This multi-dimensional approach creates a more comprehensive noise barrier that effectively blocks external noise from entering the ear canal.
2Ease of manufacture
If a fixed-size earplug is used, then manufacturing is simple, but it cannot adapt to different user ear canal sizes, reducing wearing comfort
Solution Approach 1:
The earphone system is divided into a body, cap, and wing that can be independently manufactured and then assembled. This segmentation enables standardized mass production of each component while allowing users to select different sizes of caps and wings to match their ear canal dimensions, thus maintaining manufacturing simplicity while achieving adaptability.
Solution Approach 2:
The body, cap, and wing are designed as universal components that can be combined in different size configurations to accommodate various ear canal dimensions. The cap and wing serve multiple functions: noise reduction, sealing, and size adaptation, allowing a single modular system to serve diverse user needs without requiring completely different designs for each size.
Data Source
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AI summary
Disclosed is an earphone including: a body including a main housing and a sound outlet pipe connected with the main housing, in which the sound outlet pipe has a sound outlet hole, and an end of the sound outlet pipe is provided with a sound outlet hole communicating with the sound channel; a cap including a fixing part and a first noise reduction part which are connected with each other, in which the fixing part is sleeved on the sound outlet pipe, and the first noise reduction part is provided around a peripheral side of the fixing part; and a wing including a mounting part and a second noise reduction part which are connected with each other, in which the mounting part is connected with the main housing and the second noise reduction part is provided around a peripheral side of the main housing; in which a noise reduction cavity is constructed between the first noise reduction part and the second noise reduction part, and is configured to block environmental noise entering a user's earhole. The technical scheme of the disclosure can effectively reduce external noise entering an ear canal during wearing of the earphone. (Fig. 1)