Wind noise-proof structure of wireless Bluetooth headphones

Abstract

This invention discloses a wind noise prevention structure and method for wireless Bluetooth headphones. [Solution] The earphone includes an earphone body and a stick connected to the earphone body, and a through hole as a microphone hole is provided near the bottom end of the stick, which penetrates the stick and the opening direction of the through hole intersects with the axial direction of the stick, so that external sound enters through the through hole and is transmitted to the microphone arranged inside the stick. In this invention, the microphone hole is designed as a through hole, and the through hole direction is almost perpendicular to the axial direction of the stick, so that wind from the front is prevented from blowing directly into the microphone hole, and clipping distortion is prevented when the microphone picks up sound. In addition, the through hole has two ports, and the through structure minimizes the influence of turbulence.

Description

[Technical field]

[0001] The present invention relates to the field of earphones, and more particularly to a wind noise prevention structure for wireless Bluetooth headphones. [Background technology]

[0002] At present, more and more wireless Bluetooth headphone products are appearing in the earphone market, and many earphones are equipped with active noise canceling and microphone calling functions. As shown in Figure 1, this is a current wireless Bluetooth headphone, which includes an earphone body 41 and a stick 42, and the earphone body 41 is provided with an earplug 43 and is intended to be inserted into the human ear canal. The inside of the stick 42 is usually equipped with a battery and related circuits. The bottom end of the stick is provided with a microphone hole 40 (commonly known as a microphone hole) for receiving the voice of the user when making a call. The microphone hole 40 is a single-hole design and is provided at the bottom end of the stick because during use, the stick usually hangs down at an angle near the human auricle, and the microphone hole is opened at the bottom end of the stick, and the opening direction points to the user's mouth, making it easier to receive the voice emitted by the user. However, the biggest problem with this structure is that during actual use, especially when walking or cycling, the microphone hole points to the human mouth, so the wind is mostly blown from the front, making the microphone inside the stick susceptible to turbulence, causing wind noise problems such as large clipping distortion, and making it difficult for users to hear the content of the call. Currently, related algorithms for reducing wind noise through digital signal processing are available, but the effect of improving the wind noise problem with this structure is not clear. In view of this, the inventor proposes the following technical solution: Summary of the Invention [Problem to be solved by the invention]

[0003] The technical problem that the present invention aims to solve is to overcome the shortcomings of the prior art and provide a wind noise prevention structure for a wireless Bluetooth headset. [Means for solving the problem]

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: a wind noise-proof structure for wireless Bluetooth headphones, comprising an earphone body and a stick connected to the earphone body, a through hole serving as a microphone hole is provided near the lower end of the stick, the through hole penetrates the stick, and the opening direction of the through hole intersects with the axial direction of the stick, so that external sound enters through the through hole and is transmitted to the microphone arranged in the stick.

[0005] Furthermore, in the above technical solution, the through hole includes a left channel, a right channel, and a connecting cavity located between the left and right channels, and the left channel and the right channel communicate with each other through the connecting cavity.

[0006] Furthermore, in the above technical solution, the coupling cavity is provided with a cavity opening for communicating with a microphone.

[0007] Furthermore, in the above technical solution, a mounting platform is formed at the position of the cavity opening for mounting a microphone.

[0008] Furthermore, in the above technical solution, the angle between the opening direction of the through hole and the axial direction of the stick is 70° to 90°.

[0009] Furthermore, in the above technical solution, the through holes form left and right ports on the left and right surfaces of the stick, and the left and right surfaces of the stick are not parallel.

[0010] Furthermore, in the above technical solution, the surface of the stick has a curved surface, and the left port and the right port are located on the curved surface.

[0011] The stick includes a front stick and a rear stick which are interlocking with each other, the earphone body is fixedly connected to the front stick or is integrally molded with the front stick, and the through hole passes through the front stick. Effect of the Invention

[0012] Compared with the conventional technology, this invention has the following beneficial effects: This invention adopts a new microphone hole structural design, and the microphone hole is designed as a through hole, and the through direction is almost perpendicular to the axis direction of the stick, which avoids the wind from the front blowing directly into the microphone hole and prevents clipping distortion during microphone recording. In addition, the through hole has two ports, and the through structure minimizes the influence of turbulence. With this design, when the earphone is worn on a person's head and actually makes a call, the other party can clearly hear the user's voice in windy scenes, especially when cycling, walking fast, or in windy weather. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a front view of a conventional wireless Bluetooth headphone. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 6 is a three-dimensional view of FIG. 5 from another viewpoint. [Figure 7] FIG. 2 is a comparison diagram of wind noise test curves of earphones according to the present invention and different earphones. [Figure 8] FIG. 2 is a wind noise test curve diagram comparing the present invention with the same earphone. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The present invention will be further described below in conjunction with specific embodiments and drawings. As shown in Figures 1 to 6, this is a windproof noise structure for wireless Bluetooth headphones, which includes an earphone body 1 and a stick 2 connected to the earphone body 1. A speaker is provided inside the earphone body 1, and the earphone body 1 is placed in the user's ear canal during use. Depending on the actual production, ear tips 11 can be provided at the position of the sound outlet of the earphone body 1 as needed.

[0015] A through hole 3 serving as a microphone hole is provided near the bottom end of the stick 2. Since the through hole 3 penetrates the stick 2, a left port 301 and a right port 302 are formed on the surface on both the left and right sides of the stick 2. This design of the through hole is completely different from the single hole structure of existing products, and the opening position is also different.

[0016] In this embodiment, the surfaces on both the left and right sides of the stick 2 are not parallel, more specifically, the surface of the stick 2 has a curved surface 20, and the left port 301 and the right port 302 are located on this curved surface 20. As shown in Figures 3 and 4, due to the curved surface 20 on the stick 2, the left port 301 and the right port 302 form a certain inclination, and the inclination direction faces the front direction of the stick 2, so that the sound emitted from the user's mouth can be better transmitted to the left port 301 and the right port 302.

[0017] Further combining Figure 3, the opening direction X of the through hole 3 intersects with the axial direction Y of the stick 2, and the angle between the two is 70°~90°, almost vertical. At this time, the left port 301 and the right port 302 are not at the same height. In this way, it is possible to avoid the wind from the front blowing directly into the microphone hole, and prevent the situation where distortion occurs when the microphone picks up sound. At the same time, the through hole 3 has two ports, the left port 301 and the right port 302, and the through structure can minimize the influence of turbulence.

[0018] As shown in Figures 5 and 6, the stick 2 includes a front stick 21 and a rear stick 22 that are interlocked with each other, the earphone body 1 is fixedly connected to the front stick 21 or is integrally molded with the front stick 21, and the through hole 3 is provided in the front stick 21, that is, the through hole 3 penetrates the front stick 21. Specifically, the through hole 3 includes a left channel 31 extending from the left port 301 into the front stick 21, a right channel 32 extending from the right port 302 into the front stick 21, and a connecting cavity 33 located between the left and right channels 31 and 32, that is, the left channel 31 and the right channel 32 communicate with each other through the connecting cavity 33 to form a through hole.

[0019] The coupling cavity 33 is provided with a cavity opening 331 for communicating with a microphone, and a mounting platform 332 for mounting a microphone is formed at the position of the cavity opening 331. During assembly, the microphone is mounted on the mounting platform 332. External sounds are input from the left port 301 and the right port 302, respectively, and are collected in the coupling cavity 33 through the left channel 31 and the right channel 32, and are received by the microphone located in the coupling cavity 33.

[0020] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art: The present invention adopts a new microphone hole structural design, and designs the microphone hole as a through hole, with the through direction being almost perpendicular to the axial direction of the stick, to avoid the wind from the front blowing directly into the microphone hole, and to prevent clipping distortion from occurring when the microphone is picked up. In addition, the through hole has two ports, and the through structure minimizes the impact of turbulence. With this design, when the earphone is worn on a person's head and actually makes a call, the other party can clearly hear the user's voice in windy scenes, especially when cycling, walking fast, or in windy weather.

[0021] The above is a specific description of the present invention, which limits the scope of the claims. Any implementation or modification that does not deviate from the gist of the present invention and achieves the same effect is considered to be included in the scope of the claims of the present invention. [Explanation of symbols]

[0022] 1 Earphone body 11 Ear tips 2 Stick 20 curved surface 21 Front Stick 22 Rear Stick 3 Through holes 301 Left port 302 Right Port 31 Left Channel 32 Right Channel 33 Connective cavity 331 Cavity Opening 332 Platform 40 Microphone hole 41 Earphone body 42 Stick 43 Earplugs

Claims

1. An earphone body (2) and a stick (2) connected to the earphone body (1), A through hole (3) is provided near the bottom end of the stick (2) as a microphone hole, The through hole (3) penetrates the stick (2), The wind noise prevention structure for a wireless Bluetooth headphone is characterized in that the opening direction of the through hole (3) intersects with the axial direction of the stick (2), and external sound enters through the through hole (3) and is transmitted to a microphone arranged inside the stick (2).

2. The through hole (3) includes a left channel (31), a right channel (32), and a connecting cavity (33) located between the left and right channels (31, 32); 2. The wind noise prevention structure for a wireless Bluetooth headphone as claimed in claim 1, wherein the left channel (31) and the right channel (32) communicate with each other through a coupling cavity (33).

3. The wind noise-proof structure for a wireless Bluetooth headphone as claimed in claim 2, characterized in that the coupling cavity (33) is provided with a cavity opening (331) for communicating with a microphone.

4. 4. The wind noise prevention structure for a wireless Bluetooth headphone as claimed in claim 3, wherein a mounting platform (332) for mounting a microphone is formed at the position of the cavity opening (331).

5. 2. The wind noise prevention structure for a wireless Bluetooth headphone according to claim 1, wherein an angle between the opening direction of the through hole (3) and the axial direction of the stick (2) is 70° to 90°.

6. The through hole (3) forms a left port (301) and a right port (302) on both the left and right surfaces of the stick (2); The wind noise-proof structure for wireless Bluetooth headphones as claimed in claim 1, characterized in that the surfaces of both the left and right sides of the stick (2) are not parallel.

7. The surface of the stick (2) has a curved surface (20), The wind noise-proof structure for wireless Bluetooth headphones as claimed in claim 6, characterized in that the left port (301) and the right port (302) are located on the curved surface (20).

8. The stick (2) includes a front stick (21) and a rear stick (22) that interlock with each other; The earphone body (1) is fixedly connected to or integrally formed with the front stick (21); The wind noise prevention structure for wireless Bluetooth headphones according to any one of claims 1 to 7, characterized in that the through hole (3) passes through the front stick (21).

9. The wireless Bluetooth headphone includes an earphone body (1) and a stick (2) connected to the earphone body (1); A through hole (3) is provided near the lower end of the stick (2) as a microphone hole that passes through the stick (2); The through hole (3) has a left port (301) and a right port (302), This wind noise prevention method for a wireless Bluetooth headphone is characterized in that the left port (301) and the right port (302) are arranged at different heights, thereby avoiding a situation in which wind blows directly into the through hole (3) serving as a microphone hole from the front, causing distortion when the microphone picks up sound, and reducing the effects of turbulence.

10. The wind noise prevention method for wireless Bluetooth headphones as claimed in claim 9, characterized in that the left port (301) and the right port (302) are inclined toward the front of the stick (2).

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