A semi-in-ear headphone with a dual-mode ear wing structure

Abstract

This utility model discloses a semi-in-ear headphone with a dual-mode ear wing structure, including an earphone body. The earphone body has a dual-mode ear wing structure that contacts the user's ear canal. The dual-mode ear wing structure includes an inner rigid shell and an outer flexible sealing sleeve. The outer flexible sealing sleeve covers the outside of the inner rigid shell, and the outer flexible sealing sleeve extends with sealing wings. This utility model solves the contradiction between support and comfort in traditional single-material ear wings, effectively filling the ear canal gap, optimizing sound leakage, widening the passive noise cancellation bandwidth, and improving wearing stability. It is suitable for various in-ear audio devices.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and in particular to a semi-in-ear headphone with a dual-mode ear wing structure. Background Technology

[0002] Semi-in-ear headphones are widely used in everyday audio playback scenarios due to their portability and sound quality. However, current semi-in-ear headphones often use a single material (such as silicone or hard plastic) for their ear wings or ear tips, which has the following drawbacks:

[0003] If a single flexible material (such as silicone) is used, although it can improve wearing comfort to a certain extent, it lacks sufficient rigid support, has poor wearing stability, is easy to shift during exercise or swinging, and is difficult to form a stable acoustic seal, resulting in prominent sound leakage problems.

[0004] If a single rigid material (such as ABS) is used, although it can provide better structural support, it has poor fit with the auricle, which can easily create a void in the ear canal, leading to sound leakage problems such as low-frequency diffraction and mid-frequency resonance. At the same time, it is not comfortable to wear and can easily cause pressure on the auricle after long-term use.

[0005] Single-material structures cannot achieve impedance gradient transition, have limited ability to reflect and absorb environmental noise, have poor passive noise reduction effect, and have a narrow noise reduction bandwidth. Utility Model Content

[0006] To address the problems of poor wearing stability, severe sound leakage, poor passive noise cancellation, and insufficient comfort caused by the single material of the ear wings / earplugs in existing semi-in-ear headphones, this utility model provides a semi-in-ear headphone with a dual-mode ear wing structure, which solves the above-mentioned technical problems through the dual effect of "rigid positioning + flexible filling".

[0007] The above-mentioned objective of this utility model is achieved through the following technical solution: a semi-in-ear headphone with a dual-mode ear wing structure, comprising a headphone body, wherein the headphone body is provided with a dual-mode ear wing structure that contacts the user's ear cavity; the dual-mode ear wing structure comprises an inner rigid shell and an outer flexible sealing sleeve, the outer flexible sealing sleeve covering the outside of the inner rigid shell, and the outer flexible sealing sleeve extending with sealing wings.

[0008] Furthermore, the inner rigid shell is made of hard ABS material and has an arc-shaped skeleton structure. Its shape is adapted to the groove between the user's helix and antitragus, and is used to form a positioning contact with the auricular cartilage (specifically, three-point contact with the lower crus of the antitragus, the tragus, and the helix), providing structural support. The outer flexible sealing sleeve is made of skin-friendly silicone material, and its sealing wings extend into the user's concha cavity, which is used to generate radial expansion deformation to fill the ear cavity gap when squeezed. The inner rigid shell and the outer flexible sealing sleeve are integrally molded by a two-color injection molding process.

[0009] Furthermore, the positioning contact between the inner rigid shell and the auricular cartilage is a three-point contact, specifically including contact with the lower crus of the antihelix, the tragus, and the crus of the helix.

[0010] Furthermore, the outer flexible sealing sleeve and the inner rigid shell form a labyrinth-type sealing structure, which is used to block low-frequency sound wave diffraction and absorb mid-frequency sound wave resonance.

[0011] Furthermore, the labyrinth-type sealing structure is formed by a stepped connection between an outer flexible sealing sleeve and an inner rigid shell, with a step height of 0.8-1.5mm.

[0012] Furthermore, the hardness difference between the inner rigid shell and the outer flexible sealing sleeve is 60-80 Shore A, forming a dual-material impedance gradient transition structure.

[0013] Furthermore, the outer flexible sealing sleeve has a thickness of 0.5-2mm and can produce radial expansion deformation of 0.3-1mm when compressed.

[0014] Furthermore, the radius of the arc-shaped skeleton of the inner rigid shell is 5-8mm, which is adapted to the curvature of the groove between the helix foot and the antitragus.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Filling the gap in the ear canal: The outer flexible sealing sleeve expands radially under pressure, which can adaptively fill the gap between the concha and the triangular fossa, significantly increasing the contact area compared to traditional earplugs and improving the fit.

[0017] 2. Optimize sound leakage: The inner rigid shell creates an acoustic reflection surface, and the outer flexible sealing sleeve forms a labyrinth seal with the rigid shell, which can block low-frequency diffraction and absorb mid-frequency resonance, significantly improving the slope of the sound leakage attenuation curve;

[0018] 3. Passive noise reduction: The dual materials (ABS + silicone) form an impedance gradient transition. The rigid layer reduces the reflection of environmental noise, while the flexible layer consumes sound energy, effectively broadening the noise reduction bandwidth.

[0019] 4. Wearing stability: The inner rigid shell forms a three-point contact with the auricular cartilage (lower crus of the antihelix, tragus, and crus of the helix). After a shaking test, the displacement is reduced by more than 30% compared with traditional single-material ear wings.

[0020] 5. Comfort and Aesthetics: The two-color injection molding process achieves the one-piece molding of silicone and ABS, taking into account the skin-friendly nature of the flexible material and the structural stability of the rigid material, while improving the product's appearance and texture. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of one side of the structure of this utility model in its disassembled state.

[0023] Figure 3 This is a schematic diagram of the other side of the structure in the disassembled state of this utility model.

[0024] Figure 4 This is a comparison diagram of the present invention and traditional headphones / earplugs. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, a semi-in-ear headphone with a dual-mode ear wing structure includes a headphone body 100, wherein the front cavity of the headphone body 100 is provided with a dual-mode ear wing structure 200 that contacts the user's ear cavity.

[0027] The dual-mode ear wing structure 200 includes an inner rigid shell 210 and an outer flexible sealing sleeve 220. The outer flexible sealing sleeve 220 is integrally wrapped around the outside of the inner rigid shell 210 by a two-color injection molding process, and extends out to form a sealing wing 221. This sealing wing 221 can adaptively fill the gap between the cymbidium and the triangular fossa (e.g., Figure 4 (middle right image), compared to traditional earbuds (such as...) Figure 4 (Left image) The contact area is significantly increased.

[0028] The inner rigid shell 210 is made of hard ABS material with a hardness of 90 Shore D and has an arc-shaped skeleton structure. Its outline matches the groove between the helix and antitragus of the human ear. The radius of the arc-shaped skeleton is 6.5mm. When worn, it can form a stable three-point contact support structure with the lower foot of the antitragus, the tragus, and the helix.

[0029] The outer flexible sealing sleeve 220 is made of skin-friendly silicone material with a hardness of 35 Shore A. Its sealing wings 221 extend into the concha cavity by about 2.5 mm. The main body of the sealing sleeve is 1.2 mm thick. Under the wearing and compression state, it can generate a radial expansion deformation of 0.6 mm, effectively filling the gap between the concha and the triangular fossa.

[0030] The outer flexible sealing sleeve 220 and the inner rigid shell 210 form a labyrinth seal through a stepped connection structure with a step height of 1.2mm. This structure can effectively block the diffraction path of low-frequency sound waves and absorb the resonance of mid-frequency sound waves.

[0031] The hardness difference between the inner rigid shell 210 and the outer flexible sealing sleeve 220 is 55 Shore A, forming a dual-material impedance gradient transition structure, achieving an average passive noise reduction effect of 15dB in the frequency range of 200-8000Hz.

[0032] According to tests conducted by a third-party testing agency, the semi-in-ear headphones using the dual-mode ear wing structure of this embodiment outperform traditional single silicone earbud designs in the following ways:

[0033] 1. Wearing stability is improved by 35%, with displacement reduced to 0.7mm in simulated running tests;

[0034] 2. The slope of the sound leakage attenuation curve is improved by 28%, especially in the 1-3kHz mid-frequency region where sound leakage is reduced by 12dB;

[0035] 3. Passive noise reduction bandwidth is widened by 40%, and the high-frequency cutoff frequency is increased from 5kHz to 8kHz;

[0036] 4. Wearing comfort score improved by 42%, and the pressure sensation after wearing for more than 2 hours continuously was significantly reduced.

[0037] This dual-mode ear wing structure achieves integrated molding through a two-color injection molding process, which increases production efficiency by 50% compared to the traditional multi-part assembly method and reduces the defect rate to below 2%, showing good prospects for industrial production.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A semi-ear canal hearing device having a dual mode ear wing structure, comprising a hearing device body, characterized in that: The earphone body is provided with a dual-mode ear wing structure that contacts the user's ear canal; the dual-mode ear wing structure includes an inner rigid shell and an outer flexible sealing sleeve, the outer flexible sealing sleeve covers the outside of the inner rigid shell, and the outer flexible sealing sleeve extends with sealing wings.

2. The semi-ear earphone with dual-mode ear wing structure according to claim 1, characterized in that: The inner rigid shell is made of hard ABS material and has an arc-shaped skeleton structure. Its shape is adapted to the groove between the user's helix and antitragus to form a positioning contact with the auricular cartilage. The outer flexible sealing sleeve is made of skin-friendly silicone material, and its sealing wings extend into the user's concha cavity to generate radial expansion deformation to fill the ear cavity gap when compressed. The inner rigid shell and the outer flexible sealing sleeve are integrally molded by a two-color injection molding process.

3. A semi-in-ear headphone with a dual-mode ear wing structure according to claim 1, characterized in that: The inner rigid shell makes three-point contact with the auricular cartilage, specifically including contact with the lower crus of the antihelix, the tragus, and the crus of the helix.

4. The semi-ear earphone with dual-mode ear wing structure according to claim 1, characterized in that: The outer flexible sealing sleeve and the inner rigid shell form a labyrinth-like sealing structure, which is used to block low-frequency sound wave diffraction and absorb mid-frequency sound wave resonance.

5. A semi-ear earphone with a dual-mode ear wing structure according to claim 4, characterized in that: The labyrinth-type sealing structure is formed by a stepped connection between an outer flexible sealing sleeve and an inner rigid shell, with a step height of 0.8-1.5mm.

6. The semi-ear earphone with dual-mode ear wing structure according to claim 1, characterized in that: The hardness difference between the inner rigid shell and the outer flexible sealing sleeve is 60-80 Shore A, forming a dual-material impedance gradient transition structure.

7. The semi-ear earphone with dual-mode ear wing structure according to claim 1, characterized in that: The outer flexible sealing sleeve has a thickness of 0.5-2mm and can produce radial expansion deformation of 0.3-1mm when compressed.

8. The semi-ear earphone with dual-mode ear wing structure according to claim 1, characterized in that: The radius of the arc-shaped skeleton of the inner rigid shell is 5-8mm, which is adapted to the curvature of the groove between the helix foot and the antitragus.

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