Head-mounted earphone shell structure and earphone adopting same

Abstract

The utility model discloses a headphone shell structure and a headphone using the same, the headphone shell structure comprises a shell and a horn disc, the shell and the horn disc form a rear sound cavity of the headphone, a groove for accommodating a horn is arranged in the horn disc, a plurality of concave-convex structures are uniformly arranged on the inner side of the shell, and the concave-convex structures are arranged on the outer side of the shell. The concave-convex structures with different undulations are arranged between the shell and the loudspeaker disc to process sound waves from the back of the earphone loudspeaker, and the reflection direction of the sound waves can be optimally controlled, so that resonance, sound dyeing and distortion are reduced, the sense of space is enhanced, and the sound quality performance is improved. The headphone shell structure and the headphone adopting the structure provided by the utility model have a closed sound insulation function and also have the effect of high tone quality of an open type headphone.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to a head-mounted earphone shell structure and an earphone adopting the structure. Background Art

[0002] Existing headphones are divided into open-type headphones and closed-type headphones. Among them, the back of the headphone shell of the open-type headphones is provided with a large number of openings, so that the sound waves reflected by the headphone speaker can be projected out, reducing distortion and improving sound quality. However, open-type headphones are not soundproof and have serious sound leakage, so they are suitable for use in quiet private environments, which greatly limits their scope of use.

[0003] The earphone shell of closed-type earphones is a closed design, with a very small opening for tuning the bass. Closed-type earphones can better isolate environmental noise and have less leakage, which can avoid being disturbed by the environment and will not disturb others, so closed-type earphones have a wider range of uses. However, due to the closed earphone back cavity design, the sound waves reflected backwards by the earphone speaker will be reflected uncontrollably multiple times in the earphone shell, generating unnecessary acoustic resonance, causing distortion and reducing sound quality. Utility Model Content

[0004] In view of the above problems, a headphone shell structure and a headphone using the structure are provided to solve the problems existing in the prior art.

[0005] The specific technical solutions are as follows:

[0006] A headphone shell structure comprises an outer shell and a speaker plate, wherein the outer shell and the speaker plate constitute a rear sound cavity of the headphone, a groove for accommodating a speaker is provided in the speaker plate, and a plurality of concave-convex structures are evenly arranged on the inner side of the outer shell.

[0007] The above-mentioned headphone shell structure also has the following characteristics: the concave-convex structure is a modular component and is fixedly connected to the shell; or, the concave-convex structure is integrated on the shell, and the two together form an integrated structure.

[0008] The beneficial effects of the above scheme are as follows: the concave-convex structure arranged inside the earphone shell can effectively process the sound waves from the back of the speaker, and can optimize the control of its reflection direction, thereby reducing resonance, reducing sound coloration, reducing distortion, enhancing the sense of space, and improving sound quality performance.

[0009] The above-mentioned headphone shell structure also has the characteristic that the undulations of the concave-convex structure are of different degrees.

[0010] The beneficial effect of the above scheme is that the size dimension of the concave-convex structure is optimized by finite element simulation, and setting it to unequal undulations can expand its effective bandwidth.

[0011] The above-mentioned headphone shell structure also has the characteristic that the height difference between the highest point and the lowest point of the concave-convex structure is greater than 5 mm.

[0012] The beneficial effects of the above solution are as follows: the maximum depth difference is higher than 5mm, which can expand its effective bandwidth and improve the frequency range for sound optimization.

[0013] The above-mentioned headphone shell structure also has the characteristic that air holes are provided on the shell.

[0014] The beneficial effect of the above solution is that the air holes are provided to tune the bass effect.

[0015] The above-mentioned headphone shell structure and the headphones using the structure also have the following characteristics: the cavity between the shell and the speaker plate is a rear sound cavity, and sound-absorbing cotton is arranged in the rear sound cavity.

[0016] The beneficial effect of the above scheme is that the sound-absorbing cotton can absorb the sound waves on the back of the speaker to prevent reflection interference.

[0017] A headset adopts the headset shell structure of the above structure.

[0018] In summary, the beneficial effects of this scheme are:

[0019] The headphone shell structure and the headphone using the structure provided by the utility model can optimize the reflection direction of the sound waves from the back of the headphone speaker by setting a concave-convex structure with different undulations between the shell and the speaker plate, thereby reducing resonance, reducing sound coloration, reducing distortion, enhancing the sense of space, and improving sound quality. The headphone shell structure and the headphone using the structure provided by the utility model have the closed sound insulation function and the high sound quality of open headphones. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the stereoscopic structure of the headphone shell structure and the headphone using the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of a partially disassembled stereoscopic structure of a headphone shell structure and a headphone using the structure of the present invention;

[0022] Figure 3 It is a schematic diagram of a three-dimensional structure in which the concave-convex structure and the housing are integrally connected;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the concave-convex structure as a modular component of the utility model.

[0024] Description of the drawings: 1. Shell; 2. Concavo-convex structure; 21. Base plate; 22. Concavo-convex body; 3. Speaker; 4. Speaker plate; 5. Earmuff. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solution of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] The present invention will be further described below in conjunction with specific embodiments, but this is not intended to limit the present invention.

[0028] Figure 1 The figure is a schematic diagram of the three-dimensional structure of the headset shell structure and the headset using the structure of the present invention. Figure 2 The figure is a schematic diagram of a partially disassembled stereoscopic structure of a headset shell structure and a headset using the structure according to the present invention. Figure 3 This is a schematic diagram of a three-dimensional structure in which the concave-convex structure and the housing are integrally connected. Figure 4 Schematic diagram of the three-dimensional structure of the concave-convex structure as a modular component of the utility model, such as Figure 1-Figure 4 As shown, the headphone shell structure provided in this embodiment includes an outer shell 1 and a speaker plate 4, the outer shell 1 and the speaker plate 4 constitute the rear sound cavity of the headphone, a groove for accommodating the speaker 3 is opened in the speaker plate 4, and a plurality of concave-convex structures 2 are evenly arranged on the inner side of the outer shell 1.

[0029] In the above embodiment, the concave-convex structure 2 is a modular component and is fixedly connected to the housing 1; alternatively, the concave-convex structure 2 is integrated on the housing 1, and the two together form an integrated structure.

[0030] In the above embodiment, the unevenness of the concavo-convex structure 2 is different.

[0031] In the above embodiment, the height difference between the highest point and the lowest point of the concave-convex structure 2 is greater than 5 mm.

[0032] It should be noted that, in the modular structure, the concave-convex structure 2 includes a substrate 21 and a concave-convex body 22 . The concave-convex body 22 is disposed on the substrate 21 , and the substrate 21 is connected to the inner cavity side wall of the housing 1 .

[0033] In the above embodiment, the housing 1 is provided with air holes.

[0034] It should be noted that openings are provided on the top of the housing 1 and the top of the speaker disc 4 for the wires to pass through, and the housing 1 is connected to the head beam through the openings.

[0035] In the above embodiment, the cavity between the housing 1 and the speaker plate 4 is the rear sound cavity, and sound-absorbing cotton is arranged in the rear sound cavity.

[0036] A headphone comprises a shell 1, a concave-convex structure 2, a speaker 3, a speaker plate 4, and an earmuff 5, which are stacked in sequence and together constitute a headphone body.

[0037] Working principle: when the speaker 3 makes a sound, the sound in front of the speaker 3 is output to the outside, and the sound waves at the back of the speaker 3 enter the concave-convex body 22. The concave-convex body 22 can optimize and control the sound waves entering therein, thereby reducing resonance, reducing sound coloration, reducing distortion, enhancing the sense of space, and improving sound quality performance. In addition, since sound-absorbing cotton is also provided in the rear sound cavity, it can further absorb excess sound waves to avoid affecting the sound quality.

[0038] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the present invention specification should be included in the protection scope of the present invention.

Claims

1. A headphone shell structure, comprising a shell (1) and a speaker plate (4), characterized in that: The shell (1) and the speaker plate (4) form a rear sound cavity of the headphone; a groove for accommodating the speaker (3) is provided in the speaker plate (4); and a plurality of concave-convex structures (2) are evenly arranged on the inner side of the shell (1).

2. A headphone shell structure according to claim 1, characterized in that: The concave-convex structure (2) is a modular component and is fixedly connected to the housing (1); or, the concave-convex structure (2) is integrated on the housing (1), and the two together form an integrated structure.

3. A headphone shell structure according to claim 2, characterized in that: The concave-convex structure (2) has different degrees of undulation.

4. The headphone shell structure according to claim 3, characterized in that: The height difference between the highest point and the lowest point of the concave-convex structure (2) is greater than 5 mm.

5. The headphone shell structure according to claim 4, characterized in that: The shell (1) is provided with air holes.

6. The headphone shell structure according to claim 5, characterized in that: The cavity between the housing (1) and the speaker plate (4) is a rear sound cavity, and sound-absorbing cotton is arranged in the rear sound cavity.

7. A headset, characterized in that: The earphone shell structure according to any one of claims 1 to 6 is adopted.

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