A wind-noise-proof microphone receiving structure for exposed communication headsets

Abstract

The present invention discloses a wind-noise-proof microphone sound-receiving structure for an exposed communication headset, comprising a headset housing, a microphone, and a noise-reducing sponge. The headset housing is provided with a chamber, a sidewall end of the headset housing is provided with a rectangular groove, a microphone connection hole connected to the chamber is provided on the rectangular groove, the extended length of the microphone is less than the depth of the rectangular groove, the rectangular groove is covered with a noise-reducing sponge, and a side end of the noise-reducing sponge near the microphone is provided with an avoidance hole. When a motorcycle or bicycle is traveling at high speed, headwinds hitting the headset housing will generate wind noise. The chamber inside the headset housing will form a resonance box effect, amplifying the wind noise. The faster the driving speed, the greater the wind noise. The present invention provides a rectangular groove at the sidewall end of the headset housing and installs the microphone outside the headset housing, thereby preventing or reducing the wind noise from the headset housing and the inner chamber from being transmitted to the microphone. The noise-reducing sponge can prevent or reduce the wind noise generated by the headwind directly hitting the microphone sound-receiving port.

Description

Technical Field

[0001] The invention relates to the field of communication earphones for helmets, and in particular to a wind-noise-proof microphone sound-receiving structure applied to exposed communication earphones. Background Art

[0002] Headphones, also known as audio players for the head or ears, are essentially a pair of conversion units that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers placed close to the ears. There are two methods of noise reduction in headphones: active noise reduction and passive noise reduction.

[0003] Active noise cancellation (ANC) achieves this effect by generating a reverse sound wave equal to the external noise through the noise cancellation system. Specifically, the sound receiving unit inside the earphones detects the ambient noise within the ear's hearing range. This noise signal is then transmitted to the noise cancellation circuit, which calculates the phase of the reverse sound wave in real time. The reverse sound wave has the same spectrum as the noise to be eliminated, but with a phase difference of 180°. The reverse sound wave is then emitted by the speaker unit to cancel the noise, effectively making it inaudible.

[0004] In the existing technology, many people currently use Bluetooth headsets for calls. However, when the wind is strong or when walking against the wind, the strong wind will directly blow onto the Bluetooth headset MIC to pick up the sound. The microphone cavity inside the Bluetooth headset will be affected by the airflow, forming air stagnation. The microphone will collect a lot of noise, producing harsh noise, causing interference with the call. Such wind noise is not only difficult to eliminate using the above-mentioned active noise reduction function, but may be raised, thereby affecting the noise reduction effect of the Bluetooth headset.

[0005] Therefore, the existing technology has defects and needs to be improved. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a wind-noise-proof microphone sound-receiving structure for an exposed communication headset, which can significantly reduce riding wind noise.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: a wind noise-proof microphone sound-receiving structure for an exposed communication headset, comprising a headset housing, a microphone, and a noise-reduction sponge, wherein a chamber is provided in the headset housing, a rectangular groove is provided at a side wall end of the headset housing, and a microphone connection hole is provided in the rectangular groove and communicates with the chamber;

[0008] One end of the microphone is clamped at the inner end of the microphone connection hole, and the other end of the microphone extends out of the rectangular slot;

[0009] The extended length of the microphone is less than the depth of the rectangular groove, the rectangular groove is covered with a noise reduction sponge, and an avoidance hole is provided at the side end of the noise reduction sponge close to the microphone.

[0010] By adopting the above technical solution, in the wind noise protection microphone sound receiving structure applied to the exposed communication headset, the distance between the microphone and the side wall of the rectangular groove is greater than 2 mm.

[0011] By adopting the above-mentioned technical solutions, in the wind-noise-proof microphone receiving structure applied to the exposed communication headset, the headset shell includes an upper cover body and a bottom shell, the top side edge of the bottom shell is provided with a sealing ring groove, and the bottom side edge of the upper cover body is provided with an annular boss adapted to be connected to the sealing ring groove.

[0012] By adopting the above-mentioned technical solutions, the wind-noise-proof microphone receiving structure applied to the exposed communication headset also includes a circuit board and a side button assembly. The circuit board is arranged in a cavity inside the sealing ring groove, and a side ring groove is provided at the other side wall end of the rectangular groove. The side button assembly is arranged in the side ring groove, and the side button assembly is electrically connected to the circuit board.

[0013] By adopting the above-mentioned technical solutions, the wind-noise-proof microphone receiving structure applied to the exposed communication headset also includes a pressing plate and two function buttons. The top edge of the upper cover body is provided with a step, and the pressing plate is arranged on the step. The left and right sides of the upper cover body are respectively provided with key slots, and a positioning hole is provided between the two key slots. The bottom of the pressing plate is provided with a positioning column adapted to be connected to the positioning hole, and the function button is provided in the key slot below the pressing plate, and the pressing plate is connected to the circuit board through the function buttons on the left and right sides of the bottom.

[0014] By adopting the above-mentioned technical solutions, in the wind-noise-proof microphone receiving structure applied to the exposed communication headset, slots are respectively provided around the key slot, and trapezoidal plugs are respectively provided at the bottom of the function keys for positioning and mounting with the slots.

[0015] By adopting the above-mentioned technical solutions, in the wind-noise-proof microphone receiving structure applied to the exposed communication headset, the upper and lower sides of the bottom shell are respectively provided with a bayonet structure clamped and connected to the helmet strap, and the bayonet structure includes two limit blocks and a plurality of anti-slip protrusions. The limit blocks are L-shaped structures, and the two limit blocks are symmetrically spaced apart. An opening is provided between the two limit blocks to facilitate the insertion of the helmet strap, and a gap is provided between the limit blocks and the side wall of the bottom shell, and the anti-slip protrusions are provided on the side wall of the bottom shell.

[0016] By adopting the above-mentioned technical solutions, the wind noise-proof microphone receiving structure applied to the exposed communication headset also includes a speaker module, a positioning groove is provided in the cavity, a speaker module is provided on the positioning groove, and the speaker module is electrically connected to the circuit board.

[0017] By adopting the above-mentioned technical solutions, in the wind-noise-proof microphone sound-receiving structure applied to the exposed communication headset, a rubber pad is provided at the bottom of the circuit board.

[0018] By adopting the above-mentioned technical solutions, in the wind-noise-proof microphone sound-receiving structure applied to the exposed communication headset, a lead-out headset cable is provided at the bottom of the headset shell.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] When a motorcycle or bicycle is traveling at high speed, wind noise will be generated when the headwind hits the earphone shell, and the cavity inside the earphone shell will form a resonance box effect, which amplifies the wind noise. The faster the driving speed, the greater the wind noise. The present invention provides a rectangular groove at the side wall end of the earphone shell and installs the microphone outside the earphone shell, which can avoid or reduce the wind noise from the earphone shell and the inner cavity being transmitted to the microphone. The noise reduction sponge can avoid or reduce the wind noise generated by the headwind directly hitting the microphone receiving port. While reducing the wind noise, it also reduces the impact of wind noise on the active noise reduction function of the earphone, and the anti-wind noise effect is significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the microphone assembly structure of the present invention;

[0023] Figure 3 Schematic diagram of the noise reduction sponge structure of the present invention;

[0024] Figure 4 Schematic diagram of the internal structure of the bottom shell of the present invention;

[0025] Figure 5 This is a schematic diagram of the bottom structure of the upper cover body of the present invention;

[0026] Figure 6 This is a schematic diagram of the assembly structure of the pressing plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the exploded structure of the earphone housing of the present invention;

[0028] Figure 8 It is a schematic diagram of the bottom shell bayonet structure of the present invention. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] like Figures 1 to 3 As shown, this embodiment provides a wind-noise-proof microphone receiving structure for an exposed communication headset, including an earphone shell 1, a microphone 2 and a noise-reduction sponge 3. A cavity is provided in the earphone shell 1, and a rectangular groove 10 is provided at the side wall end of the earphone shell 1. A microphone connection hole 11 connected to the cavity is provided on the rectangular groove 10.

[0032] One end of the microphone 2 is clamped at the inner end of the microphone connection hole 11 , and the other end of the microphone 2 extends out of the rectangular slot 10 .

[0033] The extended length of the microphone 2 is smaller than the depth of the rectangular groove 10 . The rectangular groove 1 is covered with a noise reduction sponge 3 . An avoidance hole 30 is provided at the side end of the noise reduction sponge 3 close to the microphone 2 .

[0034] In this embodiment, when a motorcycle or bicycle is traveling at high speed, headwinds hitting the earphone housing 1 generate wind noise. The cavity within the earphone housing 1 creates a resonance box effect, amplifying the wind noise. The faster the vehicle travels, the greater the wind noise. By providing a rectangular slot 10 in the sidewall of the earphone housing 1 and mounting the microphone 2 outside the earphone housing 1, wind noise from the inner cavity of the earphone housing 1 is prevented or reduced from being transmitted to the microphone 2. The noise-reducing sponge 3 also prevents or reduces wind noise generated by headwinds directly hitting the sound receiving port of the microphone 2. This not only reduces wind noise, but also minimizes its impact on the active noise reduction function of the earphones, resulting in a significant wind noise reduction effect.

[0035] Furthermore, the spacing L between the microphone 2 and the sidewalls of the rectangular groove 10 is greater than 2 mm. In this embodiment, the spacing L between the microphone 2 and the sidewalls of the rectangular groove 10 is 6.65 mm. It should be noted that the depth D of the rectangular groove 10 can be 2 to 20 mm. In this embodiment, the depth D of the rectangular groove 10 is 6.5 mm. Of course, the user can also set the depth D of the rectangular groove 10 to other parameters according to actual conditions, and this embodiment does not impose any excessive restrictions.

[0036] like Figure 4 and Figure 5 As shown, the earphone housing 1 further includes an upper cover 12 and a bottom housing 13. A sealing ring groove 130 is defined on the top side edge of the bottom housing 13, and an annular boss 120 is provided on the bottom side edge of the upper cover 12 to be adapted to connect with the sealing ring groove 130. In this embodiment, the provision of the sealing ring groove 130 and the annular boss 120 can improve the waterproof sealing performance of the earphone housing 1, preventing rainwater from entering through the gap between the upper cover 12 and the bottom housing 13 during riding in rainy weather and affecting the service life of the internal electronic components.

[0037] like Figure 7 As shown, the semi-exposed communication headset further includes a circuit board 4 and a side button assembly 5. The circuit board 5 is disposed in a chamber within the sealing ring groove 130. A side ring groove 14 is provided on the other sidewall of the rectangular slot 10. The side button assembly 5 is disposed within the side ring groove 14 and is electrically connected to the circuit board 4. In this embodiment, the provision of the side button assembly 5 facilitates user volume adjustment from the side.

[0038] like Figure 6 and Figure 7 As shown, the semi-exposed communication headset further includes a pressing plate 61 and two function buttons 62. The top edge of the upper cover 12 is provided with a step 121, and the pressing plate 61 is arranged on the step 121. The left and right sides of the upper cover 12 are respectively provided with a key slot 122, and a positioning hole 123 is provided between the two key slots 122. The bottom of the pressing plate 61 is provided with a positioning post 611 adapted to connect with the positioning hole 123. The function buttons 62 are arranged in the key slot 122 below the pressing plate 61. The pressing plate 61 is connected to the circuit board 4 through the function buttons 62 on the left and right sides of the bottom. In this embodiment, the user can touch the function button 62 through the pressing plate 61, which facilitates the user to adjust the function mode of the headset.

[0039] like Figure 7 As shown, further, slots 1220 are respectively provided around the button slot 122, and trapezoidal inserts 621 are respectively provided at the bottom of the function button 62 to be positioned and installed with the slots 1220. In this embodiment, the provision of the slots 1220 and the trapezoidal inserts 621 can improve the assembly stability of the function button 62.

[0040] like Figure 8As shown, further, the upper and lower sides of the bottom shell 13 are respectively provided with a bayonet structure that is clamped and connected to the helmet strap, and the bayonet structure includes two limit blocks 131 and a plurality of anti-slip protrusions 132. The limit blocks 131 are L-shaped structures, and the two limit blocks 131 are symmetrically spaced apart. An opening 133 is provided between the two limit blocks 131 to facilitate the insertion of the helmet strap, and a gap 134 is provided between the limit blocks 131 and the side wall of the bottom shell 13, and the anti-slip protrusions 132 are provided on the side wall of the bottom shell 13. In this embodiment, the limit block 131 on the bayonet structure can be snap-connected with the strap on the helmet, which makes it convenient for the driver to fix the communication headset in the helmet. The clamping method is simple and convenient. It only needs to pass the helmet strap through the opening 133 and wrap it around the gap 134 of the bottom shell 13; the anti-slip protrusion 132 can improve the clamping stability of the headset shell 1, increase the friction between the headset shell 1 and the helmet strap, and prevent the headset shell 1 from slipping off the helmet strap.

[0041] like Figure 7 As shown, further, the exposed communication headset also includes a speaker module 7. A positioning groove 15 is provided in the cavity, and the speaker module 7 is provided on the positioning groove 15. The speaker module 7 is electrically connected to the circuit board 4.

[0042] like Figure 5 As shown, further, a rubber pad 8 is provided at the bottom of the circuit board 4. In this embodiment, the provision of the rubber pad 8 can prevent the electronic components at the bottom of the circuit board 4 from abutting against the top of the bottom shell 13 during assembly and causing pressure damage.

[0043] like Figure 7 As shown, further, the bottom of the earphone housing 1 is provided with an earphone cable 9. In this embodiment, the exposed communication earphone is a wired earphone, and the earphone cable 9 can enter the cavity and connect to the circuit board 4 for audio signal transmission.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] When a motorcycle or bicycle is traveling at high speed, wind noise will be generated when the headwind hits the earphone shell. The cavity inside the earphone shell will form a resonance box effect, which amplifies the wind noise. The faster the driving speed, the greater the wind noise. The present invention provides a rectangular groove at the side wall end of the earphone shell and installs the microphone outside the earphone shell, which can avoid or reduce the wind noise from the earphone shell and the inner cavity being transmitted to the microphone. The noise reduction sponge can avoid or reduce the wind noise generated by the headwind directly hitting the microphone receiving port. While reducing the wind noise, it also reduces the impact of wind noise on the active noise reduction function of the earphone, and the anti-wind noise effect is significant.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind-noise-proof microphone receiving structure for an exposed communication headset, characterized by: The earphone housing comprises an earphone shell, a microphone and a noise reduction sponge. The earphone shell has a chamber therein, a rectangular groove is provided on the side wall of the earphone shell, and a microphone connection hole is provided on the rectangular groove to communicate with the chamber. One end of the microphone is clamped at the inner end of the microphone connection hole, and the other end of the microphone extends out of the rectangular slot; The extended length of the microphone is less than the depth of the rectangular groove, and the distance between the microphone and the side wall of the rectangular groove is greater than 2 mm, so as to avoid or reduce the wind noise in the inner cavity of the earphone shell from being transmitted to the microphone. The rectangular groove is covered with a noise reduction sponge, and the side end of the noise reduction sponge near the microphone is provided with an avoidance hole. The noise reduction sponge is used to avoid or reduce the wind noise generated by the headwind directly hitting the microphone receiving port.

2. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 1, characterized in that: The earphone housing includes an upper cover and a bottom shell. A sealing ring groove is provided on the top side edge of the bottom shell, and an annular boss is provided on the bottom side edge of the upper cover to be adapted and connected to the sealing ring groove.

3. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 2, characterized in that: It also includes a circuit board and a lateral key assembly. The circuit board is arranged in a cavity inside the sealing ring groove. A lateral ring groove is provided at the other side wall end of the rectangular groove. The lateral key assembly is arranged in the lateral ring groove, and the lateral key assembly is electrically connected to the circuit board.

4. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 3, characterized in that: It also includes a pressing plate and two function buttons. The top edge of the upper cover body is provided with a step, and the pressing plate is arranged on the step. The left and right sides of the upper cover body are respectively provided with key slots, and a positioning hole is provided between the two key slots. The bottom of the pressing plate is provided with a positioning column adapted to be connected to the positioning hole. The function button is arranged in the key slot below the pressing plate, and the pressing plate is connected to the circuit board through the function buttons on the left and right sides of the bottom.

5. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 4, characterized in that: Slots are respectively arranged around the key slots, and trapezoidal inserts are respectively arranged at the bottoms of the function keys for positioning and mounting with the slots.

6. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 2, characterized in that: The upper and lower sides of the bottom shell are respectively provided with a bayonet structure that is clamped and connected to the helmet strap. The bayonet structure includes two limit blocks and a plurality of anti-slip protrusions. The limit blocks are L-shaped structures. The two limit blocks are symmetrically spaced apart. An opening is provided between the two limit blocks to facilitate the insertion of the helmet strap, and a gap is provided between the limit blocks and the side wall of the bottom shell. The anti-slip protrusions are provided on the side wall of the bottom shell.

7. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 2, characterized in that: A speaker module is also included. A positioning groove is provided in the cavity, and the speaker module is provided on the positioning groove. The speaker module is electrically connected to the circuit board.

8. The wind noise-proof microphone receiving structure for an exposed communication headset according to claim 3, characterized in that: A rubber pad is provided at the bottom of the circuit board.

9. The wind noise-proof microphone receiving structure for an exposed communication headset according to any one of claims 1 to 8, characterized in that: An earphone cable is provided at the bottom of the earphone housing.

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