CN217133995U - Wind noise reduction module and electronic product - Google Patents

Abstract

The application provides a module and electronic product of making an uproar fall wind, fall the wind subassembly of making an uproar and be applied to electronic product in, electronic product is including falling wind module and the microphone of making an uproar, the microphone has the sound receiving hole, this fall wind the module of making an uproar includes the shell and installs the anti-wind subassembly of making an uproar in the shell, the shell has been seted up and has been picked up the sound hole, the anti-wind subassembly of making an uproar is seted up windy pipe passageway, the both ends of wind pipe passageway communicate respectively and pick up the outside of sound hole and anti-wind subassembly of making an uproar, the wind pipe passageway is filled there is porous granule. This application falls wind module of making an uproar has anti wind subassembly of making an uproar, anti wind subassembly of making an uproar has designed the tuber pipe passageway to fill porous granule in the tuber pipe passageway, wind is propagated in porous granule after entering the tuber pipe passageway from the pickup hole, porous granule has prolonged the propagation path of wind, the wind pressure has been reduced, and wind is by multidirectional dispersion in the structure of porous granule, thereby reach the purpose that reduces or eliminate wind and make an uproar, and do not influence the pickup effect of microphone moreover.

Description

Wind noise reduction module and electronic product

Technical Field

The application belongs to the technical field of electronic product accessories, and more specifically relates to a wind noise reduction module and an electronic product.

Background

Mobile electronic devices such as smart phones, telephone operators, conventional earphones, bluetooth earphones, TWS earphones and the like all have an outdoor call function, and to realize the call function, a microphone needs to be arranged in a shell, and usually, a sound hole of a microphone body is communicated with a sound pickup hole of the shell. When wind passes through the sound pick-up holes, eddy noise is generated on the surface of the sound pick-up holes, and enters the microphone diaphragm from the sound pick-up holes of the shell to the sound holes of the microphone, so that the microphone diaphragm is disturbed by wind pressure to form wind noise, and the opposite party cannot hear clearly in conversation.

SUMMERY OF THE UTILITY MODEL

The application aim at provides a fall wind and make an uproar module to wind that exists among the solution prior art blows and produces wind and make an uproar and influence the technical problem of listening effect.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a module of making an uproar falls, is applied to electronic product, and electronic product is including falling the wind module of making an uproar and microphone, and the microphone has the sound receiving hole, falls the wind module of making an uproar and includes the shell and install the anti-wind subassembly of making an uproar in the shell, and the sound collecting hole has been seted up to the shell, and wind pipe passageway is seted up to the anti-wind subassembly of making an uproar, and the both ends of wind pipe passageway communicate respectively and pick up the sound receiving hole of sound hole and microphone, and wind pipe passageway packing has porous granule.

Optionally, the porous particles have a particle size of 80 μm to 1500 μm; and/or the pore diameter of the porous particles is 0.3 nm-2.0 nm.

Optionally, the porous particles comprise one or more of zeolite particles, activated carbon particles, asbestos particles, sepiolite particles.

Optionally, the air duct channel has at least one curved surface for reflecting or refracting the wind.

Optionally, the cross-sectional area of the air duct channel perpendicular to the air flow direction is 0.6mm ² -1.2mm ² 。

Optionally, the total length of the air duct channel is less than or equal to 7 mm.

Optionally, the wind noise resisting assembly comprises a first tuning net and a middle piece, the first tuning net is clamped between the shell and the middle piece, and meshes are distributed on the first tuning net; the tuber pipe passageway is formed at the middleware, and the both ends of tuber pipe passageway are equipped with passageway import and passageway export respectively, and the mesh and the pickup hole intercommunication of first tuning net are passed through to the passageway import, and the acoustic hole of passageway export intercommunication microphone.

Optionally, the mesh diameter of the first tuning net is 35 μm to 50 μm.

Optionally, the wind noise resistant assembly further comprises a second tuning net, the second tuning net clip being connected to the intermediate member and covering the channel outlet.

Optionally, the mesh diameter of the second tuning net is 35 μm to 50 μm.

The application also provides an electronic product, which comprises the microphone and any wind noise reduction module.

1. The wind noise reduction module is provided with the wind noise resistant assembly, the wind noise resistant assembly is provided with a wind pipe channel, porous particles are filled in the wind pipe channel, and wind enters the wind pipe channel from a pickup hole and then is spread in the porous particles, so that the spread path of the wind is prolonged by the porous particles, the wind pressure is reduced, and the wind is dispersed in the structure of the porous particles in multiple directions, and the purpose of reducing or eliminating wind noise is achieved;

2. the application provides an electronic product has the module of making an uproar of falling the wind, and the module cooperation microphone of making an uproar of falling the wind uses, can reduce or eliminate the wind and make an uproar, improves the pickup effect of microphone.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of a connection structure between a wind noise reduction module and a microphone according to an embodiment of the present disclosure;

FIG. 2 is a right side view of the wind noise reduction module and microphone of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;

fig. 4 is an enlarged schematic view of a portion B in fig. 3;

FIG. 5 is a schematic structural view of the duct channel of FIG. 4;

FIG. 6 is a schematic cross-sectional view of the duct channel of FIG. 5;

fig. 7 is a schematic view of the wind noise reduction module of fig. 1 applied to a bluetooth headset.

Wherein, in the figures, the respective reference numerals:

10. a wind noise reduction module;

20. a housing; 21. a sound pickup hole;

30. a wind noise resistant component; 31. an air duct channel; 311. a channel inlet; 312. a channel outlet; 32. porous particles; 33. a first tuning net; 34. a middleware; 35. a second tuning net;

500. a microphone; 501. a sound receiving hole;

600. a circuit board; 601. a sound transmission hole.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to fig. 6, a wind noise reduction module 10 according to an embodiment of the present application will be described. The wind noise reduction module 10 is applied to an electronic product, the electronic product comprises the wind noise reduction module 10 and a microphone 500, and the microphone 500 is provided with a sound receiving hole 501. This wind noise reduction module 10 includes shell 20 and installs the anti-wind noise subassembly 30 in shell 20, and shell 20 has seted up and has picked up sound hole 21, and wind noise subassembly 30 is seted up wind pipe passageway 31, and wind pipe passageway 31's both ends communicate respectively and pick up sound hole 21 and microphone 500's sound receiving hole 501, and wind pipe passageway 31 fills has porous granule 32.

The utility model provides a fall wind module of making an uproar 10, the wind noise-resistant subassembly 30 has, wind pipe channel 31 has been designed to wind noise-resistant subassembly 30, and fill porous granule 32 in wind pipe channel 31, wind gets into wind pipe channel 31 back from pickup hole 21, propagate in porous granule 32, porous granule 32 has prolonged the propagation path of wind, the wind pressure has been reduced, and wind is by multidirectional dispersion in porous granule 32's structure, thereby reach the purpose that reduces or eliminate wind noise, and, porous granule 32 has sound permeability, do not influence the pickup effect.

Compared with the prior art, this application falls wind and makes an uproar module 10, can effectively reduce wind and make an uproar, does not influence the pickup effect of microphone, and porous granule 32 only need exist among the tuber pipe passageway 31, fill tuber pipe passageway 31 can, do not need the die sinking to customize.

In one embodiment of the present application, the duct channel 31 has at least one curved surface for reflecting or refracting the wind, for example, the duct channel 31 has an L-shape, a Z-shape or other structure with at least one curve, such as the duct channel 31 shown in fig. 3 and 4 has a zigzag shape. After the wind flows into the wind pipe channel 31, the wind encounters the bending surface of the wind pipe channel 31, is reflected and refracted by the bending surface and is dispersed to a plurality of directions, and then flows to the porous particles 32 again, so that the flow of the wind is further weakened, and the bending surface of the wind pipe channel 31 plays a role in buffering.

Optionally, the cross-sectional area of the flue duct channel 31 is 0.6mm ² -1.2mm ² For example, the cross-sectional area of the duct channel 31 is 0.6mm ² 、0.7mm ² 、0.8mm ² 、0.9mm ² 、1.0mm ² 、1.1mm ² Or 1.2mm ² Or other 0.6mm ² -1.2mm ² Any value in between. The cross-section of the air duct channel 31 is shown in fig. 5, and the cross-sectional area of the air duct channel 31 is mainly considered for the effect of sound pickup, if the cross-sectional area of the air duct channel 31 is too large, such as larger than 1.2mm ² When the microphone is used, high-frequency sound received by the microphone hole is weakened, and the sound effect is reduced; if the cross-sectional area of the duct channel 31 is too small, e.g. less than 0.6mm ² In time, the collected sound is small, namely the sound pickup effect is poor. So in practice the cross-sectional area of the air duct channel 31 can be chosen to be 0.6mm ² -1.2mm ² 。

Optionally, the total length of the air duct channel 31 is less than or equal to 7mm, such as 7mm, 6.5mm, 6mm, 5.5mm, 5mm, or 4mm for the total length of the air duct channel 31. The total length of the duct channel 31 is the sum of the lengths from the channel inlet 311 to the channel outlet 312 along the central axis of each segment of the channel, and as shown in fig. 5, the total length L of the duct channel 31 is L1+ L2+ L3. The overall length of the duct channel 31 is primarily concerned with sound attenuation, and it will be appreciated that the longer the overall length of the duct channel 31, the longer the path of sound from the sound pick-up aperture 21 to the microphone aperture, and the more sound will be attenuated. If the total length of the air duct channel 31 is greater than 7mm, the sound will be attenuated obviously, and the sound quality of the microphone will be affected.

Optionally, as shown in fig. 3 and 4, the wind noise resistant assembly 30 includes a first tuning net 33 and an intermediate piece 34, the first tuning net 33 is sandwiched between the outer shell 20 and the intermediate piece 34, and meshes are distributed on the first tuning net 33; the air duct channel 31 is formed in the intermediate piece 34, a channel inlet 311 and a channel outlet 312 are respectively arranged at two ends of the air duct channel 31, and the channel inlet 311 is communicated with the sound pickup hole 21 through the meshes of the first tuning net 33; the passage outlet 312 communicates with the acoustic opening 501 of the microphone 500. Wind enters from the sound pickup hole 21, passes through the first tuning net 33, and then enters the porous particles 32 of the air duct channel 31, and the first tuning net 33 has mesh holes and sound transmission properties, so that sound can penetrate through the first tuning net 33 and enter the air duct channel 31. The first tuning net 33 acts as a barrier to wind, reduces the kinetic energy of wind, and has multiple wind noise reducing effects in cooperation with the bent surfaces of the duct channels 31 and the porous particles 32. In addition, the first tuning net 33 also has a limiting effect on the porous particles 32, so as to prevent the porous particles 32 from flowing out from the channel inlets 311 of the air duct channels 31, and thus the normal use of the wind noise reduction module 10 is affected.

Alternatively, the diameter of the mesh of the first tuning net 33 is 35 μm to 50 μm, mainly considering the sound-collecting effect and the filling condition of the porous particles 32, it can be understood that the larger the diameter of the mesh of the first tuning net 33 is, the less the obstruction to sound is, the better the sound permeability is, but if the diameter of the mesh of the first tuning net 33 is too large, such as more than 50 μm, the smaller the particle size of the porous particles 32 is, the less the porous particles 32 are, which is not favorable for confining the porous particles 32 in the duct channel 31; if the mesh diameter of the first tone net 33 is too small, for example, less than 35 μm, the first tone net 33 may obstruct sound greatly, which may affect the sound pickup effect.

Optionally, the first tuning net 33 is attached to the housing 20 and the middle part 34 by an adhesive layer, and the first tuning net 33 is connected by the adhesive layer conveniently and firmly, so that the assembly efficiency can be improved.

Optionally, the wind noise resistive assembly 30 further comprises a second tuning net 35, the second tuning net 35 is connected to the intermediate member 34, and the second tuning net 35 covers the passage outlet 312. The second tuning net 35 also has a limiting effect on the porous particles 32, so as to prevent the porous particles 32 from flowing out of the channel outlet 312 of the air duct channel 31, which may affect the normal use of the wind noise reduction module 10, and may even damage components such as the circuit board 600 and the microphone 500; and the second tuning net 35 has multiple noise reduction effects in cooperation with the first tuning net 33, the bent surfaces of the air duct channels 31 and the porous particles 32.

Alternatively, the mesh diameter of the second tuning net 35 is 35 μm to 50 μm. The mesh diameter of the second tuning net 35 and the mesh diameter of the first tuning net 33 may be the same or slightly different.

In the present embodiment, the pore size of the porous particle 32 refers to the diameter of a sphere having a certain diameter as the equivalent particle size of the porous particle 32 when the physical property or behavior of the porous particle 32 is most similar to that of the sphere having the certain diameter.

In one embodiment of the present application, the porous particles 32 have a particle size of 80 μm to 1500 μm, for example, the particle size of the porous particles 32 may be any value between 80 μm, 90 μm, 100 μm, 150 μm, 180 μm, 200 μm, 300 μm, 400 μm, 500 μm, or 600 μm, or 80 μm to 1500 μm. It can be understood that the porous particles filled in the air duct channel can be porous particles with uniform particle size, and can also be porous particles with various particle sizes within the range of 80-1500 μm. The particle size of the porous particles 32 in the embodiment of the present application is selected to be 80 μm to 1500 μm, on one hand, the first tuning net 33 and the second tuning net 35 may deform to a certain extent during use, and the meshes are expanded, so the particle size of the porous particles 32 is generally selected to be larger than the diameters of the meshes of the first tuning net 33 and the second tuning net 35 during implementation. On the other hand, porous particles 32 in this size range are suitable for filling the ductwork channels 31 and have a suitable number of pores.

In the present embodiment, the pore size of the porous particle 32 refers to the shape and size of the pore channel in the porous particle. Alternatively, the pore size of the porous particles 32 is 0.3nm to 2.0nm, for example, the pore size of the porous particles 32 may be any value between 0.3nm, 0.4nm, 0.5nm, 0.6nm, 0.7nm, 0.8nm, 1.0nm, 1.2nm, 1.4nm, 1.6nm, 1.8nm, or 2.0nm, or 0.3nm to 2.0 nm. This aperture range of porous granule 32 has balanced sound penetrability and the effect of falling wind and making an uproar, when having guaranteed the pickup effect, has the effect of falling wind and making an uproar concurrently.

Optionally, the porous particles 32 include one or more of zeolite particles, activated carbon particles, asbestos particles, sepiolite particles, and the porous particles 32 each have a large specific surface area and have a volumetric plasticity and fillability.

During assembly, a vibration packaging process is adopted:

firstly, attaching the second tuning net 35 to the channel outlet 312 of the air duct channel 31, and then fixing the assembly of the second tuning net 35 and the intermediate piece 34 on the vibration table; the vibrating table is provided with a funnel device, the outlet of the funnel is aligned with the channel inlet 311 of the air pipe channel 31, the porous particles 32 are added into the funnel device, the vibrating table is started to vibrate, and the porous particles 32 enter the air pipe channel 31 from the outlet of the funnel due to the vibration of the vibrating table; and then attaching the first tuning net 33 to the channel inlet 311 of the air duct channel 31 to complete the assembly of the wind noise resistant assembly 30.

If batch production is needed, the porous particles 32 are firstly filled into the air duct channel 31 until the porous particles 32 are flush with the channel inlet 311, then the porous particles 32 are poured out of the air duct channel 31, the weight of the porous particles 32 is weighed and recorded, and then each wind noise resisting component 30 fills the porous particles 32 into the air duct channel 31 according to the weight.

The application also provides an electronic product, which comprises a microphone 500, a circuit board 600 and any one of the wind noise reduction modules 10, wherein the microphone 500 and the wind noise reduction module 10 are respectively connected to two sides of the circuit board 600; the circuit board 600 is provided with a sound transmission hole 601. As shown in fig. 1 and fig. 3, a partial structure of an electronic product having a microphone 500 is shown, the electronic product includes a casing, the casing includes a casing 20 of a wind noise reduction module 10, that is, the casing 20 is a part of the casing, an accommodating cavity is opened in the casing, a wind noise resisting component 30 and the microphone 500 are installed in the accommodating cavity, the microphone 500 is connected to the wind noise resisting component 30, a second tuning net 35 is interposed between the microphone 500 and a circuit board 600, a sound receiving hole 501 of the microphone 500 corresponds to a channel outlet 312 of a duct channel 31, and the channel outlet 312 of the duct channel 31 is communicated with the sound receiving hole 501 of the microphone 500 through a sound transmitting hole 601 of the circuit board 600.

The electronic product with the microphone that this application embodiment provided has and falls wind module 10 of making an uproar, and wind gets into anti wind subassembly 30 of making an uproar from pickup hole 21, and the flow of the multiple hindrance wind of the plane of buckling and the porous granule 32 cooperation of tuber pipe passageway 31 to reduce or eliminate wind and make an uproar, make the pickup effect of microphone better.

It can be understood that the electronic product with the microphone may be, for example, a bluetooth headset, a mobile phone, a conventional headset, a telephone operator, a tablet computer, and the like, and the structure of the bluetooth headset is, for example, as shown in fig. 7, when the wind noise reduction module 10 provided in the embodiment of the present application is installed, wind noise can be effectively reduced, and the sound pickup quality of the microphone can be improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a fall wind module of making an uproar which characterized in that: be applied to in the electronic product, the electronic product is including falling wind module and the microphone of making an uproar, the microphone has the sound receiving hole, fall wind module of making an uproar include the shell and install in the anti-wind subassembly of making an uproar in the shell, the sound picking-up hole has been seted up to the shell, the wind pipe passageway has been seted up to the anti-wind subassembly of making an uproar, the both ends of wind pipe passageway communicate respectively the sound receiving hole of sound picking-up hole and microphone, the wind pipe passageway is filled with porous granule.

2. The wind noise reduction module of claim 1, wherein: the particle size of the porous particles is 80-1500 mu m; and/or the pore diameter of the porous particles is 0.3 nm-2.0 nm.

3. The wind noise reduction module of claim 1, wherein: the porous particles comprise one or more of zeolite particles, activated carbon particles, asbestos particles, sepiolite particles.

4. The wind noise reduction module of claim 1, wherein: the air duct channel has at least one bent surface for reflecting or refracting the wind.

5. The wind noise reduction module of claim 1, wherein: the cross section area of the air pipe channel perpendicular to the air flowing direction is 0.6mm ² -1.2mm ² 。

6. The wind noise reduction module of claim 1, wherein: the air pipe channel is L-shaped or Z-shaped, and the total length of the air pipe channel is less than or equal to 7 mm.

7. The wind noise reduction module of claim 1, wherein: the wind noise resisting assembly comprises a first tuning net and a middle piece; the first tuning net is arranged between the shell and the intermediate piece, and meshes are distributed on the first tuning net; the air pipe channel is formed in the intermediate piece, a channel inlet and a channel outlet are respectively arranged at two ends of the air pipe channel, the channel inlet is communicated with the pickup hole through the mesh of the first tuning net, and the channel outlet is communicated with the sound receiving hole of the microphone.

8. The wind noise reduction module of claim 7, wherein: the diameter of the mesh of the first tuning net is 35-50 μm.

9. The wind noise reduction module of claim 7, wherein: the wind noise resistant assembly further comprises a second tuning net connected to the intermediate member and covering the passage outlet.

10. An electronic product, characterized in that: the wind noise reduction module set of any one of claims 1 to 9 and the microphone.

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