CN214960065U - Mechanical wind noise prevention structure of active noise reduction earphone and earphone - Google Patents

Abstract

The utility model relates to a mechanical type of the earphone of making an uproar structure of preventing wind of initiatively falling, its setting is in the feedforward pickup zone of earphone, include from inside to outside set gradually at feedforward microphone, pickup plate, dust screen, the piece of penetrating sound in feedforward pickup zone, the feedforward microphone is fixed in pickup plate one side, is provided with the sound hole of picking up leading to feedforward microphone on picking up the soundboard, and the piece surface of penetrating sound forms a smooth-going surface with the earphone shell surface that lies in same one side. The utility model eliminates the mechanical vibration generated on the surface of the earphone shell by the air flow through the full-frequency high-efficiency penetrating sound-transmitting block, and filters the noise source with certain bandwidth and depth; through will pass through sound piece surface and earphone shell surface design into a smooth and smooth-going surface, avoid taking place mechanical vibration with the air current, build mechanical type and prevent wind the structure of making an uproar, can effectual reduction wind make an uproar, make ANC earphone no longer receive the influence of wind noise in the great use scene of air flow.

Description

Mechanical wind noise prevention structure of active noise reduction earphone and earphone

Technical Field

The utility model relates to a noise reduction earphone technical field, in particular to noise reduction earphone's mechanical type structure of preventing wind and using this earphone of preventing wind and making an uproar structure of initiatively making an uproar falls.

Background

ANC (Active Noise Cancellation english abbreviation), which is Active Noise reduction, is a Noise reduction technology, and is one of the methods applied to Noise reduction of earphones. The ANC noise reduction technology is that after the sound wave of noise is analyzed, reverse sound waves are sent to be superposed and neutralized, so that the effect of noise elimination is achieved, the use feeling of an earphone user is improved, and meanwhile, a certain protection effect is also achieved on the hearing of the user. The earphone during operation needs feedforward pickup area to receive external ambient noise, therefore feedforward pickup area needs pickup passage intercommunication earphone shell outside, this pickup passage extends to earphone shell surface, by bike, run, when sitting great use scene of air flow such as subway, the air current can produce the wind noise in pickup passage department, this wind noise can be collected and enlargied to the feedforward microphone of earphone, thereby seriously influence the sense of hearing of earphone, the current well-known brand earphone on the market can eliminate the wind noise that feedforward microphone pickup department produced through software filtering, but because the pollution of sound source, only can little improvement.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, the utility model provides an earphone of making an uproar structure and applied this structure of making an uproar of preventing wind is prevented to mechanical type of the earphone of making an uproar of falling initiatively, based on the wind that present ANC earphone product produced makes an uproar and leads to the listening to feel uncomfortable, and the wind that reduces the product through mechanical structure design fundamentally makes an uproar, makes ANC earphone product still can have noiselessness to experience in the great environment the inside of air flow.

In order to achieve the above purpose, the utility model provides a technical scheme does: a mechanical wind and noise prevention structure of an active noise reduction earphone is arranged in a feedforward sound collecting area of the earphone and comprises a feedforward microphone, a sound collecting plate, a dust screen and a sound transmission block, wherein the feedforward microphone, the sound collecting plate, the dust screen and the sound transmission block are sequentially arranged in the feedforward sound collecting area from inside to outside, the feedforward microphone is fixed on one side of the sound collecting plate, a sound collecting hole leading to the feedforward microphone is formed in the sound collecting plate, and the outer surface of the sound transmission block and the outer surface of an earphone shell located on the same side form a smooth surface.

In the above technical scheme, the outer surface of the sound-transmitting block and the outer surface of the earphone shell on the same side are smooth surfaces, and the intersection between the outer surface of the sound-transmitting block and the outer surface of the earphone shell on the side is in smooth transition.

In the above technical scheme, the sound-transmitting block is fixed in a shaped hole of the earphone shell.

In the above technical scheme, the inner wall of the shaped hole is provided with a step for positioning the sound transmission block.

In the above technical solution, the sound permeable block is a sound permeable block that can be penetrated by full frequency efficiently.

The sound transmission block is made of a foaming material or a copper-based sintering material.

In the technical scheme, the dustproof net is arranged between the sound pickup plate and the sound transmission block through an installation plate, an installation hole is formed in the installation plate, and the dustproof net is located in the installation hole.

In the above technical scheme, the mounting hole is a long round hole.

In the above technical scheme, the inner shell of the earphone is provided with an installation groove, the feedforward microphone and the pickup plate are arranged in the installation groove, and the installation plate is arranged at the notch of the installation groove.

In order to achieve the above object, the utility model also provides an earphone, including the above-mentioned structure of making an uproar of preventing wind.

The utility model has the advantages that the structure is reasonable, the design is novel, the practicability is strong, the mechanical vibration generated on the surface of the earphone shell by the air flow is eliminated by the sound-transmitting block which can be penetrated through in full frequency and high efficiency, and the noise source with certain frequency width and depth is filtered; through will pass through sound piece surface and earphone shell surface design into a smooth and smooth-going surface, avoid taking place mechanical vibration with the air current, build mechanical type and prevent wind the structure of making an uproar, can effectual reduction wind make an uproar, make ANC earphone no longer receive the influence of wind noise in the great use scene of air current, restore the listening effect of a clean high definition, the effect of the noise of can not hearing wind is infinitely close even.

Drawings

Fig. 1 is a schematic perspective view of a single earphone.

Fig. 2 is a schematic diagram of an exploded structure of the feed-forward sound-collecting area of the present invention.

Fig. 3 is a schematic sectional structure of a single earphone.

Fig. 4 is a partially enlarged structural view of a portion a in fig. 3.

In the figure: 11. an earphone shell; 12. an inner shell; 13. a horn; 14. a hole is formed; 15. a step; 16. mounting grooves; 21. a feed-forward sound pickup area; 22. a feedback sound pickup zone; 3. a feedforward microphone; 4. a sound collecting plate; 41. a sound pickup hole; 5. a dust screen; 51. mounting a plate; 52. mounting holes; 6. a sound transmission block; 61. at the junction.

Detailed Description

The embodiments of the present invention will be described with reference to fig. 1 to 4.

As shown in fig. 1-4, a mechanical wind noise prevention structure of an active noise reduction earphone is arranged in a feedforward sound collecting area 21 of the earphone, and comprises a feedforward microphone 3, a sound collecting plate 4, a dust screen 5 and a sound transmitting block 6 which are sequentially arranged in the feedforward sound collecting area 21 from inside to outside, wherein the feedforward microphone 3 is fixed on one side of the sound collecting plate 4, the sound collecting plate 4 is provided with a sound collecting hole 41 leading to the feedforward microphone 3, and the outer surface of the sound transmitting block 6 and the outer surface of an earphone shell 11 on the same side form a smooth surface.

The outer surface of the sound-transmitting block 6 and the outer surface of the earphone shell 11 on the same side are smooth surfaces, and the junction 61 between the outer surface of the sound-transmitting block 6 and the outer surface of the earphone shell 11 on the side is in smooth transition.

The sound-transmitting block 6 is fixed in a shaped hole 14 of the earphone shell 11. The inner wall of the shaped hole 14 is provided with a step 15 for positioning the sound-transmitting block 6. The sound transmission block 6 is a sound transmission block 6 which can be efficiently transmitted in all frequencies, wherein the all frequencies include low, middle and high frequencies. Wherein, the sound-transmitting block 6 is made of foaming material which can be penetrated through with full frequency and high efficiency or made of copper-based sintering material which can be penetrated through with full frequency and high efficiency; the foaming materials include tuning cotton, pu foaming material and rubber foaming material, and the tuning cotton is widely applied to earphones; in the present embodiment, it is preferable to use tuning cotton as the sound-transmitting block 6, but any other foam material or copper-based sintered material may be used as the sound-transmitting block 6 as long as it can achieve high-efficiency full-frequency penetration. Copper powder sintering and copper bead sintering are carried out on copper-based sintering materials, and copper powder sintering filter elements and copper bead sintering filter elements which are made of the existing copper-based sintering materials have air filtering and noise reduction effects and are widely applied to air filters and pneumatic element air source processors.

The dust screen 5 is arranged between the sound pickup plate 4 and the sound transmission block 6 through a mounting plate 51, a mounting hole 52 is formed in the mounting plate 51, and the dust screen 5 is located in the mounting hole 52. The mounting hole 52 is an oblong hole.

The inner casing 12 of the earphone is provided with a mounting groove 16, the feedforward microphone 3 and the sound-pickup plate 4 are disposed in the mounting groove 16, and the mounting plate 51 is disposed at the notch of the mounting groove 16.

As shown in fig. 1 and 4, the earphone comprises the above-mentioned wind noise prevention structure, a feed-forward sound collecting area 21, a feed-back sound collecting area 22 and a loudspeaker 13, wherein the wind noise prevention structure is arranged in the feed-forward sound collecting area 21, the feed-forward sound collecting area 21 collects noise information outside the earphone, and the feed-back sound collecting area 22 is arranged in front of the loudspeaker 13 to collect information of sound of the earphone entering the ear.

The utility model has the advantages of reasonable structure, novel design, therefore, the clothes hanger is strong in practicability, through the sound-transmitting block 6 made of the full-frequency high-efficiency penetrable foaming material, not only can eliminate the mechanical vibration generated on the surface of the earphone shell 11 by the air flow, but also can filter the noise source with certain frequency width and depth, thereby realizing no noise transmission, the outer surface of the sound-transmitting block 6 is smooth, the junction 61 between the outer surface of the sound-transmitting block 6 and the surface of the earphone shell 11 is smooth, the junction 61 is expanded to the edge of the earphone shell 11 to form a smooth surface, the mechanical vibration with the air flow is avoided, namely, when the air flow is in a larger use scene, the noise generation caused by the mechanical vibration generated by the abrupt surface of the feedforward sound-picking area 21 and the peripheral earphone shell 11 is avoided; let ANC earphone on the subway or airport, the high service environment that the high-grade wind noise of bus produced the source, no longer receives the influence of wind noise, restores the listening effect of a clean high definition, and the sound block 6 of leading to that makes through the full high-efficient penetrating expanded material of can full frequency and build the mechanical type and prevent wind the structure of making an uproar, can effectual reduction wind make an uproar, the effect of the noise of can't hearing wind that is unlimited even close.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the present invention.

Claims (10)

1. The mechanical wind noise prevention structure of the active noise reduction earphone is arranged in a feedforward sound collecting area of the earphone and is characterized by comprising a feedforward microphone, a sound collecting plate, a dust screen and a sound transmission block which are sequentially arranged in the feedforward sound collecting area from inside to outside, wherein the feedforward microphone is fixed on one side of the sound collecting plate, sound collecting holes leading to the feedforward microphone are formed in the sound collecting plate, and the outer surface of the sound transmission block and the outer surface of an earphone shell positioned on the same side form a smooth surface.

2. The mechanical wind noise prevention structure of an active noise reduction earphone according to claim 1, wherein the outer surface of the sound transmission block and the outer surface of the earphone shell on the same side are smooth surfaces, and the junction between the outer surface of the sound transmission block and the outer surface of the earphone shell on the side is smooth.

3. The mechanical wind noise prevention structure of the active noise reduction earphone according to claim 2, wherein the sound transmission block is fixed in a hole of the earphone shell.

4. The mechanical wind noise prevention structure of an active noise reduction earphone according to claim 3, wherein the inner wall of the shaped hole is provided with a step for positioning the sound transmission block.

5. The mechanical wind noise prevention structure of an active noise reduction earphone according to claim 4, wherein the sound transmission block is a sound transmission block that can be efficiently penetrated by full frequency.

6. The mechanical wind noise prevention structure of the active noise reduction earphone according to claim 5, wherein the sound transmission block is made of a foam material or a copper-based sintered material.

7. The mechanical wind noise prevention structure of an active noise reduction earphone according to claim 1, wherein the dust screen is disposed between the sound pickup board and the sound transmission block through a mounting plate, the mounting plate is formed with a mounting hole, and the dust screen is located in the mounting hole.

8. The mechanical wind noise prevention structure of the active noise reduction earphone according to claim 7, wherein the mounting hole is a long round hole.

9. The mechanical wind noise prevention structure of the active noise reduction earphone according to claim 7, wherein the inner housing of the earphone is provided with a mounting groove, the feedforward microphone and the pickup plate are disposed in the mounting groove, and the mounting plate is disposed at the notch of the mounting groove.

10. An earphone, characterized in that it comprises a wind noise prevention structure as claimed in any one of claims 1 to 9.

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