CN214205811U - Structure for reducing wind dryness of earphone - Google Patents

Abstract

The utility model belongs to the technical field of earphones, in particular to a structure for weakening the wind dryness of earphones, which comprises an earphone shell and a microphone; the earphone shell is internally provided with a sound guide channel which is at least provided with a turn; a first mounting groove and a second mounting groove are respectively arranged at two ends of the sound guide channel in the earphone shell, the first mounting groove and the second mounting groove are respectively provided with an air noise reduction layer in a matched manner, and the microphone is mounted beside the second mounting groove; the outer wall of the earphone shell is provided with a microphone hole which is communicated with the first mounting groove; external sound gets into from the microphone hole position, the wind noise passes through first mounting groove in proper order, lead tone passageway and second mounting groove, the layer of weakening wind noise in the first mounting groove can absorb and reduce most wind noise, the turning in the sound channel of leading can weaken partial wind noise once more, the layer of weakening wind noise in the second mounting groove can absorb and reduce remaining wind noise once more, it has been eliminated by a wide margin to get into the miaow head position wind noise at last, wind noise is eliminated basically, the effect of reducing wind noise is good, promote the tone quality that the earphone listened the song.

Description

Structure for reducing wind dryness of earphone

Technical Field

The utility model belongs to the technical field of the earphone, especially, relate to a weaken dry structure of earphone wind.

Background

Earphones (ears; heads-sets; ears) are a pair of conversion units that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers near the ears.

The microphone is one of the components which cannot be lost in the existing earphone products. The existing TWS earphones are smaller and smaller, the TWS earphones on the market generally have the active noise reduction function, and the active noise reduction is mainly realized in a software mode to reduce the wind noise of the earphones and improve the tone quality of the earphones.

The active noise reduction is realized by collecting noise through a microphone, calculating and designing a series of software and hardware algorithms through acoustic engineers, generating reverse sound waves with opposite noise by a circuit, transmitting the reverse sound waves through a loudspeaker, and finally mutually offsetting the noise and the reverse sound waves. However, since the active noise reduction earphone sound production unit can additionally produce sound waves for canceling noise, the sound details can be lost, the sound quality can be compromised, and especially for the wind noise in the environment, the wind noise is mainly generated by blowing the microphone of the earphone when walking, exercising or running, and buzzing noise can be generated, so that the sound quality of the user listening to songs is seriously disturbed. At present, the active noise reduction mode of the earphone can not achieve the purpose of greatly reducing wind noise temporarily, the effect of reducing the wind noise is general, and the tone quality of the earphone can not be further optimized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a weaken dry structure of earphone wind, the initiative that aims at solving among the prior art earphone falls the mode of making an uproar and temporarily can't realize reducing wind noise by a wide margin, and the effect that reduces wind noise is general, can't optimize the technical problem of earphone tone quality further.

In order to achieve the above object, an embodiment of the present invention provides a structure for reducing earphone wind dryness, which includes an earphone shell and a microphone; the earphone shell is internally provided with a sound guide channel, and the sound guide channel is at least provided with a turn; a first mounting groove and a second mounting groove are respectively formed in the earphone shell at two ends of the sound guide channel, and the first mounting groove and the second mounting groove are uniformly communicated with the sound guide channel; the first mounting groove and the second mounting groove are respectively provided with a wind noise reduction layer in a matched mode, and the microphone is mounted beside the second mounting groove; earphone shell outer wall is equipped with the wheat hole, the wheat hole with first mounting groove intercommunication.

Optionally, at least one wind blocking block is arranged in the sound guide channel, and a gap is formed between the wind blocking block and the sound guide channel.

Optionally, the sound guide channel is provided with a bend, the bend divides the sound guide channel into two sections of channels which are connected in sequence, and the two channels are respectively communicated with the first mounting groove and the second mounting groove; at least one wind-blocking block is arranged in each section of channel.

Optionally, the sound guiding channel is provided with four corners, the four corners divide the sound guiding channel into five sections of channels which are connected in sequence, and a head end channel and a tail end channel of the five channels are respectively communicated with the first mounting groove and the second mounting groove; at least one wind-blocking block is arranged in each section of channel.

Optionally, two adjacent wind shielding blocks in the sound guide channel are respectively arranged on two opposite side walls of the sound guide channel.

Optionally, the first mounting groove, the sound guide channel, and the second mounting groove are dug in the inner wall of the earphone shell, so that openings are formed on the upper sides of the first mounting groove, the sound guide channel, and the second mounting groove; and a cover plate covers the opening to enable the first mounting groove, the sound guide channel and the second mounting groove to form a sealed cavity.

Optionally, the cover plate is a circuit board, and the microphone is mounted on and electrically connected with the circuit board; the microphone is communicated with the second mounting groove.

Optionally, the first mounting groove, the sound guide channel and the second mounting groove are obliquely arranged on the inner wall of the earphone shell, so that the inner wall of the earphone shell at the peripheral position of the opening forms an oblique inner wall, and the circuit board is mounted on the oblique inner wall.

Optionally, a plurality of positioning columns are arranged on the inner wall of the earphone shell around the sound guide channel, a plurality of positioning holes are formed in the circuit board in a penetrating mode, and each positioning column is inserted into one positioning hole in a matching mode.

Optionally, the wind noise reduction layer is a sponge layer, a foam layer or a mesh fabric layer.

Compared with the prior art, the embodiment of the utility model provides a weaken dry structure of earphone wind has one of following technological effect:

when the earphone is used, external sound enters from the microphone hole, wind noise enters the first mounting groove, and the wind noise weakening layer in the first mounting groove can absorb and reduce most of the wind noise; then the wind noise enters the position of the sound guide channel, and the corner in the sound guide channel can reduce part of the wind noise again; then, wind noise enters the second mounting groove, the weakening wind noise layer in the second mounting groove can absorb and reduce residual wind noise again, finally the wind noise entering the microphone position is greatly eliminated, the wind noise is basically eliminated, the wind noise reducing effect is good, humming noise cannot be generated even if wind blows a microphone of the earphone during walking, sports or running, and the sound quality of the earphone for listening to songs is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a structure for weakening wind dryness of an earphone according to a first embodiment of the present invention.

Fig. 2 is a schematic view of a partial structure of a structure for weakening wind dryness of an earphone according to a first embodiment of the present invention.

Fig. 3 is a partial exploded view of a structure for reducing wind dryness of an earphone according to a first embodiment of the present invention.

Fig. 4 is a front view of an earphone shell according to a first embodiment of the present invention.

Fig. 5 is a front view of an earphone shell according to a second embodiment of the present invention.

Fig. 6 is a cross-sectional view of fig. 2 according to the present invention.

Wherein, in the figures, the respective reference numerals:

an earphone 10, an earphone shell 100, a containing cavity 101, a microphone hole 102, an inclined inner wall 103, a positioning column 104,

a sound guide channel 110, a bend 111, a wind shielding block 112, a gap 113, a channel 115, a first mounting groove 120,

the microphone comprises an opening 123, a second mounting groove 130, a wind noise reduction layer 140, a microphone 200, a cover plate 300 and a positioning hole 310.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1 and 2, a structure for reducing the wind dryness of earphones is provided, which includes an earphone case 100 and a microphone 200. The earphone case 100 has a receiving cavity 101 therein.

Referring to fig. 2 and 3, a sound guide channel 110 is disposed in the earphone housing 100, and the sound guide channel 110 is at least provided with a turn 111. The earphone shell 100 is provided with a first mounting groove 120 and a second mounting groove 130 at two ends of the sound guide channel 110, and the first mounting groove 120 and the second mounting groove 130 are uniformly communicated with the sound guide channel 110.

Referring to fig. 2 and 3, a wind noise reduction layer 140 is respectively installed in the first installation groove 120 and the second installation groove 130 in a fitting manner, the microphone 200 is installed beside the second installation groove 130, and the microphone 200 is communicated with the second installation groove 130.

Referring to fig. 2 and 3, the earphone housing 100 is provided at an outer wall thereof with a microphone hole 102, and the microphone hole 102 is communicated with the first mounting groove 120, so that wind noise may flow into the microphone hole 102 when walking, exercising or running.

Reference is made to fig. 3, 4 and 5, wherein the arrows in fig. 4 and 5 are directed in the direction of wind noise flow. When the earphone is used, external sound enters from the position of the microphone hole 102, wind noise enters from the position of the first installation groove 120, and the wind noise reduction layer 140 in the first installation groove 120 can absorb and reduce most of the wind noise. The wind noise then enters the position of the sound-guiding channel 110 and the corners 111 in the sound-guiding channel 110 can again attenuate part of the wind noise. Then, the wind noise enters the second mounting groove 130, the wind noise weakening layer 140 in the second mounting groove 130 can absorb and reduce the residual wind noise again, and finally the wind noise entering the microphone 200 is greatly eliminated, so that the wind noise is basically eliminated, the wind noise reducing effect is good, the buzzing noise cannot be generated even if the wind blows the microphone 200 of the earphone 10 during walking, sports or running, and the sound quality of the earphone 10 listening to songs is improved.

In another embodiment of the present invention, referring to fig. 3, 4 and 5, at least one wind blocking block 112 is disposed in the sound guiding channel 110 of the wind-proof earphone structure, and a gap 113 is formed between the wind blocking block 112 and the sound guiding channel 100, wherein the gap 113 is used for allowing sound to flow through. The wind blocking block 112 has a wind blocking effect, the flow direction of wind noise is changed by blocking, the wind noise changes in direction and bypasses the wind blocking block 112 from the gap 113, the flow speed of the wind noise is reduced, the wind noise flowing through the sound guide channel 110 is slowed down, the effect of reducing the wind noise is achieved, and the wind noise is reduced by combining the corner 111, so that the effect of reducing the wind noise is good.

Specifically, the wind blocking piece 112 is rectangular, the rectangular shape has a better effect of reducing the wind noise flow rate than the circular shape or the arc shape, and the thickness of the wind blocking piece 112 is the same as the depth of the sound guide channel 110.

In another embodiment of the present invention, referring to fig. 5, the sound guiding channel 110 of the earphone wind-drying structure is provided with a turn 111, the turn 111 divides the sound guiding channel 110 into two sections of channels 115 connected in sequence, and the two channels 115 are respectively communicated with the first mounting groove 120 and the second mounting groove 130. At least one wind-blocking block 112 is arranged in each section of the channel 115. The wind blocking block 112 and the corner 111 can both play a role in slowing down the wind noise flow speed, and are good in wind noise reduction effect and simple in structure.

In another embodiment of the present invention, referring to fig. 3 and 4, the sound guiding channel 110 for weakening the wind drying structure of the earphone is provided with four turns 111, four turns 111 divide the sound guiding channel 110 into five sections of channels 115 connected in sequence, and five head end channels and tail end channels of the channels 115 are respectively communicated with the first mounting groove 120 and the second mounting groove 130. At least one wind-blocking block 112 is arranged in each section of the channel 115.

Referring to fig. 3 and 4, the four corners 111 can reduce the wind noise flowing through the sound guide channel 110 four times, and the wind blocking blocks 112 in the five-section channel 115 can reduce the wind noise flowing through the sound guide channel 110 at least five times, so that the wind noise flowing through the sound guide channel 110 is greatly eliminated, and after entering the position of the microphone 200, the wind noise is basically and completely eliminated, the effect of reducing the wind noise is better, and the sound quality of listening to songs by the earphone is better.

Specifically, eight wind blocking blocks 112 are disposed in the sound guide channel 110.

Further, referring to fig. 3 and 4, the adjacent channels 115 are disposed parallel or perpendicular to each other, and the sound guide channel 110 is easily processed.

In another embodiment of the present invention, referring to fig. 3 and 4, two adjacent wind-blocking blocks 112 in the sound-guiding channel 110 for weakening the wind-drying structure of the earphone are respectively disposed on two opposite sidewalls of the sound-guiding channel 110, so that a plurality of wind-blocking blocks 112 are distributed in the sound-guiding channel 110 in a shutter structure (staggered distribution). The wind noise that flows into sound guide channel 110 passes through in proper order windshield 112 is because a plurality of windshield 112 is the shutter structure and distributes (staggered distribution) for the wind noise need walk around in proper order windshield 112, and every windshield 112 and every 111 homoenergetic that turns round can change the flow direction of wind noise, thereby every velocity of flow that can slow down a wind noise through a windshield 112 or a 111 homoenergetic that turns round reaches the effect of wind noise that reduces step by step, realizes reducing by a wide margin or eliminating wind noise, provides high-quality sound quality of listening to songs for the user.

It is understood that the more the number of the wind-shielding blocks 112 and the corners 111 is set, the more the wind noise reduction effect is. Because the space of the earphone 10 is limited and the processing complexity is considered, the number of the turns 111 is set to be 3-6 optimal, and the number of the wind blocking blocks 112 is set to be 6-10 optimal, so that the effect of reducing wind noise can be achieved well, and the structure is not too complex.

Therefore, the shape of the sound guiding channel 110, and the number of the wind blocking pieces 112 and the bends 111 are determined according to the actual production requirement and the customer requirement, and the invention is not limited herein.

In another embodiment of the present invention, referring to fig. 3 and 4, the first mounting groove 120, the sound guide channel 110 and the second mounting groove 130 of the earphone wind-drying structure are dug in the inner wall of the earphone housing 100, so that the openings 123 are formed at the upper sides of the first mounting groove 120, the sound guide channel 110 and the second mounting groove 130.

Referring to fig. 3 and 4, a cover plate 300 covers the opening 123, so that the first mounting groove 120, the sound guide channel 110 and the second mounting groove 130 form a sealed cavity, and wind noise or sound entering from the microphone hole 102 flows along the first mounting groove 120, the sound guide channel 110 and the second mounting groove 130 in sequence, and leaks, thereby causing other noises.

In addition, in the conventional method, a part of the sound guide channel 110 is usually processed separately, and then the sound guide channel 110 is installed in the earphone shell 100, which has the disadvantages of increasing the assembly difficulty and the processing difficulty and increasing the cost. And the utility model discloses directly dig the mode of establishing sound channel 110 at earphone shell 100 inner walls, simplify the processing degree of difficulty of leading sound channel 110, reduce the assembly degree of difficulty, reduce the processing cost by a wide margin.

Further, referring to fig. 3 and 4, the cover plate 300 is a circuit board, and the microphone 200 is mounted on and electrically connected to the circuit board. The microphone 200 is communicated with the second mounting groove 130, and the opening 123 is covered by the circuit board, so that the first mounting groove 120, the sound guide channel 110 and the second mounting groove 130 form a sealed cavity, and a mounting space does not need to be specially vacated for the circuit board, thereby reasonably utilizing the space in the earphone shell 100 and achieving high space utilization rate.

Among them, the circuit board is a mature prior art.

In another embodiment of the present invention, referring to fig. 3, 4 and 6, the first mounting groove 120, the sound guide channel 110 and the second mounting groove 130 of the earphone wind-drying structure are obliquely arranged on the inner wall of the earphone housing 100, so that the inner wall of the earphone housing 100 at the position around the opening 123 forms an oblique inner wall 103, and the circuit board is mounted on the oblique inner wall 103. The inclined inner wall 103 is mainly used for saving the inner space of the earphone shell 100, and is used for installing the microphone 200 on the circuit board to leave an installation space, so that the microphone 200 which is convexly arranged is prevented from propping the inner wall of the earphone shell 100, the space in the earphone shell 100 is reasonably utilized, the space utilization rate is high, and the structure is compact.

Preferably, the first mounting groove 120 and the second mounting groove 130 are rectangular, but not limited thereto.

In another embodiment of the present invention, referring to fig. 3 and 4, a plurality of positioning pillars 104 are disposed around the sound guide channel 110 (i.e. on the inclined inner wall 103) on the inner wall of the earphone casing 100 for weakening the wind-dry structure of the earphone, the circuit board is provided with a plurality of positioning holes 310, and each positioning pillar 104 is adapted to be inserted into one of the positioning holes 310. The positioning column 104 and the positioning hole 310 cooperate to position and mount the circuit board, so that the circuit board is convenient to mount.

In some embodiments, the circuit board can be fixed to the inclined inner wall 103 by clamping, and the installation is convenient.

In other embodiments, the circuit board may be fixedly mounted on the inclined inner wall 103 by means of glue bonding, and the mounting is firm.

In another embodiment of the present invention, referring to fig. 3 and 4, the wind noise reducing layer 140 for reducing the wind-dry structure of the earphone is a sponge layer, a foam layer or a mesh layer. The sponge layer, the foam cotton layer or the mesh fabric layer can prevent dust from entering the sound guide channel 110 from the position of the wheat hole 102, and meanwhile, the sponge layer, the foam cotton layer or the mesh fabric layer also has the functions of absorbing and reducing noise, so that the dustproof and noise-reducing effects are achieved.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims (10)

1. A structure for reducing the wind dryness of earphones is characterized by comprising an earphone shell and a microphone; the earphone shell is internally provided with a sound guide channel, and the sound guide channel is at least provided with a turn; a first mounting groove and a second mounting groove are respectively formed in the earphone shell at two ends of the sound guide channel, and the first mounting groove and the second mounting groove are uniformly communicated with the sound guide channel; the first mounting groove and the second mounting groove are respectively provided with a wind noise reduction layer in a matched mode, and the microphone is mounted beside the second mounting groove; earphone shell outer wall is equipped with the wheat hole, the wheat hole with first mounting groove intercommunication.

2. A headphone wind reduction structure as defined in claim 1, wherein: at least one wind blocking block is arranged in the sound guide channel, and a gap is formed between the wind blocking block and the sound guide channel.

3. A headphone wind reduction structure as defined in claim 2, wherein: the sound guide channel is provided with a bend, the bend divides the sound guide channel into two sections of channels which are connected in sequence, and the two channels are respectively communicated with the first mounting groove and the second mounting groove; at least one wind-blocking block is arranged in each section of channel.

4. A headphone wind reduction structure as defined in claim 2, wherein: the sound guide channel is provided with four corners, the four corners divide the sound guide channel into five sections of channels which are connected in sequence, and a head end channel and a tail end channel of the five channels are respectively communicated with the first mounting groove and the second mounting groove; at least one wind-blocking block is arranged in each section of channel.

5. A structure for reducing wind-dryness of earphones according to claim 3 or 4, wherein: two adjacent wind shielding blocks in the sound guide channel are respectively arranged on two opposite side walls of the sound guide channel.

6. A reduced earphone wind-dryness structure as set forth in any one of claims 1 to 4, wherein: the first mounting groove, the sound guide channel and the second mounting groove are dug in the inner wall of the earphone shell, so that openings are formed in the upper sides of the first mounting groove, the sound guide channel and the second mounting groove; and a cover plate covers the opening to enable the first mounting groove, the sound guide channel and the second mounting groove to form a sealed cavity.

7. The earphone wind-reducing structure of claim 6, wherein: the cover plate is a circuit board, and the microphone is mounted on the circuit board and electrically connected with the circuit board; the microphone is communicated with the second mounting groove.

8. The earphone wind-reducing structure of claim 7, wherein: the first mounting groove, lead the sound passageway with the slope of second mounting groove is located the inner wall of earphone shell makes opening peripheral position department earphone shell inner wall forms the slope inner wall, the circuit board install in slope inner wall.

9. The earphone wind-reducing structure of claim 7, wherein: the inner wall of the earphone shell is provided with a plurality of positioning columns around the sound guide channel, the circuit board is provided with a plurality of positioning holes in a penetrating mode, and each positioning column is inserted into one positioning hole in a matching mode.

10. A reduced earphone wind-dryness structure as set forth in any one of claims 1 to 4, wherein: the wind noise reduction layer is a sponge layer, a foam layer or a mesh fabric layer.

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