Earphone based on airflow guiding noise reduction

Abstract

The utility model relates to the technical field of earphone noise reduction, in particular to an earphone based on airflow guide noise reduction, which comprises a wireless earphone and a noise reduction module, the noise reduction mechanism is used for blocking dust in the noise airflow and is arranged on the surface of the wireless earphone; wherein the noise reduction mechanism comprises an air inlet hole formed in the inner wall of the wireless earphone; according to the device, the trumpet-shaped filtering holes and the fixing plate are utilized, small-particle dust is effectively prevented from directly entering the air inlet holes through the filtering holes, noise dispersion is achieved, cleanliness in the air inlet holes, the noise reduction holes and the air outlet holes is guaranteed, the noise reduction effect of the air inlet holes, the noise reduction holes and the air outlet holes on noise is further guaranteed, and the noise reduction effect of the air inlet holes, the noise reduction holes and the air outlet holes is improved through the air inlet holes, the noise reduction holes and the air outlet holes. According to the utility model, effective dispersion of air flow is realized, uniform flow of the air flow in the plurality of noise reduction holes is further realized, turbulence or vortex of the air flow in the flowing process is avoided, and interference of noise on the earphone is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone noise reduction, in particular to an earphone based on airflow guidance noise reduction. Background Art

[0002] Headphones based on airflow guidance noise reduction are a type of headphone product that uses advanced noise reduction technology. This technology effectively reduces the interference of external noise on the listening experience through a carefully designed airflow guidance structure, bringing users a purer and clearer sound quality enjoyment.

[0003] The Chinese patent "Headphone noise reduction structure and headphone" authorization announcement number "CN217283331U" uses the first through hole, the sound guide channel and the second through hole to allow the external noise airflow or environmental sound interference signal to form convection, and no vortex wind noise is directly generated in the connecting hole, thereby reducing noise.

[0004] When the above-mentioned air and noise enter the sound guiding channel for noise reduction, dust will follow the air into the sound guiding channel, causing impurities to appear in the sound guiding channel, thereby reducing the airflow guiding noise reduction effect of the earphone.

[0005] Therefore, an earphone based on airflow guidance noise reduction is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the present invention is to provide headphones with airflow-guided noise reduction in order to solve the above-mentioned problems, thereby improving the problem that dust will follow the air into the sound guide channel, thereby reducing the airflow-guided noise reduction effect of the headphones.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme. A headset based on airflow-guided noise reduction comprises: a wireless headset; a noise reduction mechanism, wherein the noise reduction mechanism is arranged on the surface of the wireless headset for blocking dust in the noise airflow; wherein the noise reduction mechanism comprises an air inlet hole opened on the inner wall of the wireless headset, the inner wall of the wireless headset is provided with noise reduction holes and air outlet holes distributed in equal rows, the noise reduction holes are respectively connected with the air inlet hole and the air outlet hole, the inner wall of the air inlet hole is fixedly connected with a fixing plate, the surface of the fixing plate is provided with filter holes distributed in an annular manner, the filter holes are shaped like a horn, and a noise reduction component is arranged on the surface of the wireless headset. By utilizing the trumpet-shaped filter holes and the fixing plate, the filter holes can effectively block smaller dust particles from directly entering the air inlet and disperse the noise, thereby ensuring the cleanliness of the air inlet, noise reduction holes and air outlet, and further ensuring the noise reduction effect of the air inlet, noise reduction holes and air outlet. By utilizing the air inlet, noise reduction holes and air outlet, the airflow can be effectively dispersed, thereby achieving uniform flow of airflow in multiple noise reduction holes, avoiding the generation of turbulence or eddy currents in the airflow, thereby alleviating the interference of noise on the headphones.

[0008] Preferably, the noise reduction component includes a first sound-absorbing cotton fixedly connected to the inner wall of the noise reduction hole, the inner wall of the air outlet is fixedly connected to a second sound-absorbing cotton, and the inner wall of the second sound-absorbing cotton is fixedly connected to a filter. The first sound-absorbing cotton and the second sound-absorbing cotton are used to absorb the noise in the noise reduction hole and the air outlet, reduce the propagation and reflection of the noise in the noise reduction hole and the air outlet, and thus improve the noise reduction effect of the earphone. The filter is used to block smaller particles, ensure the cleanliness of the air outlet and the noise reduction hole, and thus ensure the noise reduction effect of the air outlet and the noise reduction hole.

[0009] Preferably, the air inlet is fan-shaped. The fan-shaped air inlet can be used to more evenly distribute the airflow to each noise reduction hole, reduce airflow turbulence and speed differences, and thus reduce noise interference with the earphone.

[0010] Preferably, the noise reduction hole is in the shape of a trumpet, and the first sound-absorbing cotton is in the shape of a trumpet. The trumpet-shaped noise reduction hole can reduce the turbulence and speed of the airflow in the noise reduction hole, thereby helping to reduce noise. The trumpet-shaped first sound-absorbing cotton can expand the contact area between the noise and the sound-absorbing cotton, thereby increasing its absorption and dissipation of noise.

[0011] Preferably, the surface of the air outlet is curved in an arc shape. The curved air outlet reduces the air flow resistance, thereby ensuring that the air flow is discharged evenly in the air outlet, thereby reducing the noise generated when the air flow flows.

[0012] Preferably, the surface of the second sound-absorbing cotton is curved in an arc shape. By using the curved second sound-absorbing cotton, noises from different angles and directions are absorbed, thereby expanding the contact area between the noise and the second sound-absorbing cotton, thereby increasing its absorption and dissipation of noise.

[0013] The beneficial effects of the utility model are:

[0014] 1. The trumpet-shaped filter holes and the fixing plate are used to effectively block small dust particles from entering the air inlet directly and disperse the noise, ensuring the cleanliness of the air inlet, noise reduction holes and air outlet holes, thereby ensuring the noise reduction effect of the air inlet, noise reduction holes and air outlet holes. The air inlet, noise reduction holes and air outlet holes are used to effectively disperse the airflow, thereby achieving uniform flow of the airflow in multiple noise reduction holes, avoiding turbulence or eddy currents in the airflow, thereby alleviating the interference of noise on the headphones;

[0015] 2. The first sound-absorbing cotton and the second sound-absorbing cotton are used to absorb the noise in the noise reduction hole and the air outlet, reduce the propagation and reflection of the noise in the noise reduction hole and the air outlet, and thus improve the noise reduction effect of the headphones. The filter is used to block smaller particles, ensure the cleanliness of the air outlet and the noise reduction hole, and thus ensure the noise reduction effect of the air outlet and the noise reduction hole;

[0016] 3. The fan-shaped air inlet holes can be used to distribute the airflow more evenly to each noise reduction hole, reducing airflow turbulence and speed differences, thereby reducing noise interference with the headphones. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the wireless headset of the present utility model;

[0019] Figure 3 for Figure 2 A magnified view of middle;

[0020] Figure 4 for Figure 2 Enlarged view of B.

[0021] In the figure: 1. wireless headphones; 2. noise reduction mechanism; 21. air inlet; 22. fixing plate; 23. filter hole; 24. noise reduction hole; 25. air outlet; 26. noise reduction component; 261. first sound-absorbing cotton; 262. second sound-absorbing cotton; 263. filter. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in 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 in 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.

[0023] When implementing: Figure 1-4As shown, an earphone based on airflow-guided noise reduction comprises: a wireless earphone 1; a noise reduction mechanism 2, wherein the noise reduction mechanism 2 for blocking dust in the noise airflow is arranged on the surface of the wireless earphone 1; wherein the noise reduction mechanism 2 comprises an air inlet 21 opened on the inner wall of the wireless earphone 1, and the inner wall of the wireless earphone 1 is provided with noise reduction holes 24 and air outlet holes 25 distributed in equal rows, and the noise reduction holes 24 are respectively connected with the air inlet 21 and the air outlet 25, and the inner wall of the air inlet 21 is fixedly connected with a fixing plate 22, and the surface of the fixing plate 22 is provided with filter holes 23 distributed in an annular manner, and the shape of the filter holes 23 is a horn, and the surface of the wireless earphone 1 is provided with a noise reduction component 26, and the shape of the air inlet 21 is a fan-shaped, and the surface of the air outlet 25 is curved in an arc shape.

[0024] When using the earphone, pick up the wireless earphone 1 in the earphone box and wear it on the ear, connect the wireless earphone 1 to the mobile phone through Bluetooth, and then start using it. At this time, the external noise and air enter the trumpet-shaped filter hole 23. Due to the characteristic of its gradually expanding opening, smaller particles of dust are intercepted and dispersed and the noise generated by the airflow is weakened. The filtered air and the weakened noise enter the fan-shaped air inlet 21, and the airflow is evenly dispersed into each noise reduction hole 24, ensuring that each noise reduction hole 24 can get enough airflow supply, so that the airflow in the noise reduction hole 24 flows evenly into the air outlet 25, avoiding turbulence or eddy currents in the noise reduction hole 24 and the air outlet 25, thereby reducing the interference of external noise on the earphone.

[0025] like Figure 2 and Figure 4 As shown, the noise reduction component 26 includes a first sound-absorbing cotton 261 fixedly connected to the inner wall of the noise reduction hole 24, a second sound-absorbing cotton 262 is fixedly connected to the inner wall of the air outlet hole 25, a filter 263 is fixedly connected to the inner wall of the second sound-absorbing cotton 262, the shape of the noise reduction hole 24 is trumpet-shaped, the shape of the first sound-absorbing cotton 261 is trumpet-shaped, and the surface of the second sound-absorbing cotton 262 is curved in an arc shape.

[0026] It should be noted that the wireless headset 1, the first sound-absorbing cotton 261, the second sound-absorbing cotton 262, etc. in the above description are all devices with relatively mature applications in existing technologies. The specific models can be selected according to actual needs. At the same time, the wireless headset 1 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0027] The trumpet-shaped first sound-absorbing cotton 261 absorbs the airflow noise flowing evenly in the noise reduction hole 24, the arc-shaped second sound-absorbing cotton 262 absorbs the airflow noise flowing evenly in the air outlet 25, and the filter 263 blocks smaller particles of dust from entering the air outlet 25, ensuring the cleanliness of the air outlet 25.

[0028] When the utility model is in use, the wireless earphone 1 in the earphone box is picked up and worn on the ear, and the wireless earphone 1 is connected to the mobile phone through Bluetooth, and then the use is started. At this time, the external noise and air enter the trumpet-shaped filter hole 23. Due to the characteristic of the gradually expanding opening, the smaller particles of dust are intercepted and dispersed and the noise generated by the airflow is weakened. The filtered air and the weakened noise enter the fan-shaped air inlet 21, and the airflow is evenly dispersed into each trumpet-shaped noise reduction hole 24, ensuring that each noise reduction hole 24 can get enough airflow supply. The trumpet-shaped first sound-absorbing cotton 261 absorbs the uniformly flowing airflow noise, so that the airflow in the noise reduction hole 24 flows evenly into the curved arc-shaped air outlet 25, and the curved arc-shaped second sound-absorbing cotton 262 absorbs the uniformly flowing airflow noise, thereby reducing the interference of external noise to the earphone.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A headset based on airflow guidance noise reduction, characterized in that: include: Wireless headphones (1); A noise reduction mechanism (2) for blocking dust in the noise airflow, the noise reduction mechanism (2) being arranged on the surface of the wireless headset (1); The noise reduction mechanism (2) comprises an air inlet (21) provided on the inner wall of the wireless headset (1); the inner wall of the wireless headset (1) is provided with noise reduction holes (24) and air outlet holes (25) distributed in equal rows; the noise reduction holes (24) are respectively connected to the air inlet (21) and the air outlet holes (25); the inner wall of the air inlet (21) is fixedly connected with a fixing plate (22); the surface of the fixing plate (22) is provided with filter holes (23) distributed in an annular pattern; the filter holes (23) are in the shape of a horn; and the surface of the wireless headset (1) is provided with a noise reduction component (26).

2. The earphone based on airflow guidance noise reduction according to claim 1, characterized in that: The noise reduction component (26) comprises a first sound-absorbing cotton (261) fixedly connected to the inner wall of the noise reduction hole (24), the inner wall of the air outlet hole (25) is fixedly connected to a second sound-absorbing cotton (262), and the inner wall of the second sound-absorbing cotton (262) is fixedly connected to a filter (263).

3. The earphone based on airflow guidance noise reduction according to claim 1, characterized in that: The air inlet (21) is in a fan shape.

4. The earphone based on airflow guidance noise reduction according to claim 2, characterized in that: The noise reduction hole (24) is shaped like a trumpet, and the first sound-absorbing cotton (261) is shaped like a trumpet.

5. The earphone based on airflow guidance noise reduction according to claim 1, characterized in that: The surface of the air outlet hole (25) is curved in an arc shape.

6. The earphone based on airflow guidance noise reduction according to claim 2, characterized in that: The surface of the second sound-absorbing cotton (262) is curved in an arc shape.

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