CN219107610U

CN219107610U - In-ear earphone

Info

Publication number: CN219107610U
Application number: CN202223014488.2U
Authority: CN
Inventors: 潘伟恒; 邓森; 马晓明
Original assignee: Shenzhen 3Nod Digital Technology Co Ltd
Current assignee: Shenzhen 3Nod Digital Technology Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-05-30
Anticipated expiration: 2032-11-11

Abstract

The embodiment of the application belongs to the technical field of acoustic products and relates to an in-ear earphone which comprises a shell, a loudspeaker, a noise-reducing microphone and an ear sleeve, wherein a sound outlet part of the shell is outwards provided with a sound outlet hole and a sound pickup tube in a protruding mode, and the sound pickup tube is positioned in the sound outlet hole and a sound pickup end of the sound pickup tube extends out of the sound outlet hole along the sound outlet direction of the sound outlet hole; the earmuff is sleeved on the sound outlet hole, and the sound outlet hole and the pickup tube are positioned in the earmuff; the loudspeaker is arranged in the shell, and the sound emitting part of the loudspeaker corresponds to the sound emitting hole position; the noise reduction microphone is arranged in the shell, and the noise reduction microphone is connected with the sound outlet end of the sound pickup tube. The technical scheme that this application provided can reduce the interference to the feedback pickup after the sound reflection reverberation in the cavity.

Description

In-ear earphone

Technical Field

The present application relates to the technical field of acoustic products, and more particularly, to an in-ear earphone.

Background

With the development of the technology level, the living standard of people gradually improves, and the earphone becomes an indispensable external audio device in modern electronic products, and due to the increase of environmental noise in urban development and the appearance of earplugs, the development of the earphone has revolutionary breakthrough, and in-ear earphone has appeared, and the smaller volume of the in-ear earphone makes outdoor use very convenient, and simultaneously due to the design of the in-ear earphone, a user can fully reduce environmental noise in outdoor use.

The pick-up hole design of the current in-ear earphone's back feed microphone often just to or opposite loudspeaker, and the back feed microphone naked is put in the front sound cavity, and when environment change or external sound come in, the sound can form reflection reverberation easily in the cavity, influences the pick-up of making an uproar miaow falls, makes earphone tone quality poor. In addition, the front sound cavity of the existing in-ear earphone is provided with a front leakage hole, and the front leakage hole can influence the sound signal picked up by the feedback microphone, so that the output signal leakage quantity of the earphone after the earphone is worn is influenced, and the sound quality effect of the earphone is poor.

Disclosure of Invention

The technical problem that this application embodiment to solve is that the setting of the back feed microphone of current in-ear earphone forms reflection reverberation easily, and the pickup of interference noise reduction miaow influences the acoustic signal that the back feed microphone picked up, and the tone quality effect of earphone is poor.

In order to solve the above technical problems, the embodiments of the present application provide an in-ear earphone, which adopts the following technical scheme:

an in-ear earphone comprises a shell, a loudspeaker, a noise-reducing microphone and an ear cover;

the sound outlet part of the shell is outwards and convexly provided with a sound outlet hole and a sound pickup tube, the sound pickup tube is positioned in the sound outlet hole, and the sound pickup end of the sound pickup tube extends out of the sound outlet hole along the sound outlet direction of the sound outlet hole;

the earmuff is sleeved on the sound outlet hole, and the sound outlet hole and the pickup tube are positioned in the earmuff;

the loudspeaker is arranged in the shell, and the sound emitting part of the loudspeaker corresponds to the sound emitting hole position;

the noise reduction microphone is arranged in the shell, and the noise reduction microphone is connected with the sound outlet end of the sound pickup tube.

Further, a mounting groove is formed in the inner cavity of the shell, corresponding to the pick-up tube, and the noise reduction microphone is mounted in the mounting groove.

Further, the noise reduction microphone is fixed with the mounting groove in an interference fit mode.

Further, the in-ear earphone further comprises a microphone cloth, and the microphone cloth is arranged between the noise reduction microphone and the pickup tube.

Further, the noise reduction microphone is a feedback microphone.

Further, a positioning convex shoulder is arranged on the outer side of the sound outlet hole in a protruding mode, and a matched positioning groove is arranged on the inner side of the earmuff corresponding to the positioning convex shoulder.

Further, the in-ear earphone further comprises a sound outlet mesh cloth, and the sound outlet mesh cloth is arranged at the sound outlet end of the sound outlet.

Further, the pick-up end of the pick-up tube extends out of the sound outlet hole and is located between the sound outlet end of the earmuff and the mesh cloth of the sound outlet hole.

Further, the in-ear earphone further comprises a controller, and the controller is connected with the noise reduction microphone in a control mode.

Further, the earmuffs are made of soft rubber.

Compared with the prior art, the embodiment of the application has the following main beneficial effects:

according to the sound pickup tube, the sound pickup hole of the noise-reducing microphone is modified into the sound pickup tube with the end part extending out of the sound outlet hole, and the end part of the sound pickup tube is located in the earmuff, so that the sound pickup of the noise-reducing microphone can be closer to the auditory meatus, the sound reflection reverberation in the cavity can be reduced, and the interference to the sound pickup of the noise-reducing microphone is reduced.

The tip of pickup pipe extends out the sound hole and is located the design of earmuff, can make the pickup end of pickup pipe go into in the ear canal deeply, reduces or avoids preceding bleeder to the influence of noise reduction miaow pickup sound signal to the guarantee earphone can reach better tone quality effect.

Drawings

For a clearer description of the solution of the present application, a brief introduction will be given to the drawings needed in the description of the embodiments, which are some embodiments of the present application, and from which other drawings can be obtained for a person skilled in the art without the inventive effort.

FIG. 1 is a schematic diagram of an in-ear earphone of the present utility model;

FIG. 2 is a schematic cross-sectional view of an in-ear earphone of the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 2A;

fig. 4 is an exploded view of the in-ear earphone of the present utility model.

Reference numerals:

1. a housing; 2. feeding back a microphone; 3. ear muffs; 4. a sound outlet hole; 41. positioning the shoulder; 5. a sound pickup tube; 6. a microphone mesh; 7. and (5) a sound outlet mesh cloth.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Embodiments of in-ear headphones of the present application

Referring to fig. 1 to 4, the in-ear earphone device of the present application includes: comprises a shell 1, a loudspeaker (not shown in the figure), a noise reduction microphone 2 and an earmuff 3.

The sound-emitting part of the shell 1 is outwards provided with a sound-emitting hole 4 and a sound pickup tube 5 in a protruding mode, and the sound pickup tube 5 is located in the sound-emitting hole 4, and the sound pickup end of the sound pickup tube 5 extends out of the sound-emitting hole 4 along the sound-emitting direction of the sound-emitting hole 4.

The earmuff 3 suit in go out on the sound hole 4, go out the sound hole 4 with pickup tube 5 all is located in the earmuff 3, in this embodiment, the pickup end of pickup tube 5 is located go out the sound end of sound hole 4 with go out between the sound end of earmuff 5.

The loudspeaker is arranged in the sound cavity of the shell 1, and the sound emitting part of the loudspeaker corresponds to the sound receiving end position of the sound emitting hole 4.

The noise reduction microphone 2 is arranged in the sound cavity of the shell 1, and a sound pickup part of the noise reduction microphone 2 is connected with a sound outlet end of the sound pickup tube 5.

In the embodiment of the application, the sound outlet hole and the sound pickup tube are respectively arranged on the shell, so that the sound outlet of the loudspeaker and the sound pickup of the noise-reducing microphone are separated, the sound is prevented from forming reflection reverberation in the sound cavity, the sound pickup of the noise-reducing microphone is influenced, and the sound quality effect of the earphone is improved; the sound pickup end of sound pickup pipe is connected with the sound pickup portion of the noise reduction miaow to extend out the sound hole through the sound pickup end of sound pickup pipe, and be located the setting between the sound pickup end of sound outlet hole and the sound outlet end of earmuff, make sound pickup pipe and earphone play sound Kong Chu sound direction syntropy and the sound pickup pipe length stretch into in the earmuff, make the sound pickup of the position that the noise reduction miaow can follow near the ear canal, with the interference to the sound pickup of the noise reduction miaow after reducing the sound reflection reverberation in the sound cavity, can detect the earphone more accurately and wear the back acoustic signal of picking up of ear canal.

Referring to fig. 2 and 3, in this embodiment, a mounting groove is disposed in the acoustic cavity of the housing 1 corresponding to the pickup tube 4, the noise-reducing microphone 2 is mounted in the mounting groove, and a pickup portion of the noise-reducing microphone 2 is connected to an audio output end of the pickup tube 5, for receiving pickup of the pickup tube 5 into the ear canal; in this embodiment, the noise reduction miaow 2 with interference fit is fixed between the mounting groove to this ensures the sealed waterproof between noise reduction miaow 2 and the mounting groove, can also prevent simultaneously that sound after the sound cavity internal reflection reverberation from getting into noise reduction miaow 2 from the mounting groove, avoids interfering the pickup.

In this embodiment, the in-ear earphone further includes a microphone mesh 6, the microphone mesh 6 is disposed between the pickup portion of the noise-reducing microphone 2 and the sound outlet end of the sound pickup tube 5, for realizing dust prevention and water prevention of the noise-reducing microphone 2.

In this embodiment, the noise reduction microphone 2 is a feedback microphone (i.e. FB microphone), and noise information collected by the feedback microphone is closer to that heard by the human ear, so that noise that is not filtered by the feedforward microphone is further filtered.

In this application embodiment, the interference fit fixed mounting of miaow of making an uproar and mounting groove ensures sealed assembly in the acoustic cavity of shell, through setting up miaow screen cloth, realizes making an uproar miaow and the dustproof and waterproof between the pickup tube of making an uproar to the life of extension earphone.

Referring to fig. 2 and 4, a positioning shoulder 41 is protruding on the outside of the sound outlet 4, a matched positioning groove is provided on the inside of the earmuff 3 corresponding to the positioning shoulder 41, and the earmuff 3 is sleeved on the sound outlet 4 through the cooperation of the positioning shoulder 41 and the positioning groove, in this embodiment, the earmuff 3 is made of soft rubber, preferably silica gel, and the earmuff 3 is made of soft material and has elasticity, so that the earmuff 3 is sleeved on the sound outlet 4 after being elastically deformed, the earmuff 3 can be effectively prevented from falling from the shell 1, and meanwhile, the earmuff 3 is made of soft material, so that the earmuff 3 can be fully filled with the space of the earmuff, and the earmuff is convenient for providing better sound effect.

Referring to fig. 1 and 4, the in-ear earphone further includes a sound outlet mesh 7, where the sound outlet mesh 7 is disposed at a sound outlet end of the sound outlet 4, and is used for realizing waterproof and dustproof effects of the earphone; in this embodiment, the pick-up end of the pick-up tube 5 extends along the sound outlet direction of the sound outlet 4, passes through the sound outlet mesh 7, and the pick-up end of the pick-up tube 5 is between the sound outlet mesh 7 and the sound outlet end of the earmuff 3.

In this application embodiment, through setting up the pickup tube, make the pickup end of making an uproar miaow can stretch into in the earmuff and not surpass outside the earmuff, when can pick up the acoustic signal that is closer to the ear canal, still avoid the pickup tube overlength to lead to causing the damage in the ear canal. When external sound or environment changes change after the earphone is worn, the noise reduction microphone picks up sound signals which are closer to the auditory canal through the pickup tube, so that interference of sound reflection reverberation in the sound cavity to the noise reduction microphone can be reduced, and interference of leakage holes in the sound cavity to output signal leakage detection is avoided.

In this embodiment, the in-ear earphone still includes the controller, the controller with the miaow 2 that makes an uproar control is connected for handle the acoustic signal that makes an uproar 2 pick up, judge the output signal leakage after the earphone wears, the controller is again to output signal leakage adjustment parameter, finally ensures that the earphone reaches better tone quality effect, in this embodiment, the controller is the chip of making an uproar falls in PCB, and the miaow 2 that makes an uproar falls through pickup tube 5 and passes through the acoustic signal transmission that the pickup tube is located the ear canal to the chip of making an uproar falls in PCB, and the chip of making an uproar falls behind handling the acoustic signal, adjusts the acoustic signal of output, finally ensures that the earphone reaches better tone quality effect, reaches the function of initiatively making an uproar falls.

The embodiment of the application provides an in-ear earphone adopts the pickup end to extend the pickup pipe in play sound hole, and the pickup end of pickup pipe is located the earmuff for the pickup of the miaow of making an uproar can be more close the ear canal, can reduce the interior sound reflection reverberation of cavity, reduces the interference to the miaow pickup of making an uproar. The pick-up end of pick-up pipe extends out the sound hole and is located the design of earmuff, can make the pick-up end of pick-up pipe go into in the ear canal deeply, reduce or avoid preceding bleeder to the influence of noise reduction miaow pick-up sound signal, pick up the sound signal through the pick-up pipe after, transmit to the feedback to the controller behind the noise reduction miaow, the output signal leakage volume after the earphone was worn is judged to the controller, the controller is again to output signal leakage volume adjustment parameter to the guarantee earphone can reach better tone quality effect.

It is apparent that the embodiments described above are only some embodiments of the present application, but not all embodiments, the preferred embodiments of the present application are given in the drawings, but not limiting the patent scope of the present application. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing, or equivalents may be substituted for elements thereof. All equivalent structures made by the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the protection scope of the application.

Claims

1. An in-ear earphone is characterized by comprising a shell, a loudspeaker, a noise-reducing microphone and an earmuff;

2. The in-ear earphone according to claim 1, wherein an installation groove is formed in a position of the inner cavity of the housing corresponding to the pickup tube, and the noise reduction microphone is installed in the installation groove.

3. The in-ear headphone of claim 2, wherein the noise-reducing microphone is secured to the mounting groove by an interference fit.

4. An in-ear headphone according to claim 3, further comprising a microphone mesh disposed between the noise reducing microphone and the pickup tube.

5. The in-ear headphone of claim 1, wherein the noise reduction microphone is a feed-back microphone.

6. The in-ear earphone according to claim 1, wherein a positioning shoulder is convexly arranged on the outer side of the sound outlet hole, and a matched positioning groove is arranged on the inner side of the earmuff corresponding to the positioning shoulder.

7. The in-ear headphones of claim 1 further comprising a sound outlet mesh cloth, the sound outlet mesh cloth defining a sound outlet end of the sound outlet.

8. The in-ear headphone of claim 7, wherein the pickup end of the pickup tube extends out of the sound outlet and is positioned between the sound outlet end of the earmuff and the mesh of the sound outlet.

9. The in-ear headphone of claim 1, further comprising a controller, the controller being coupled to the noise reduction microphone.

10. The in-ear headphone of claim 1, wherein the ear muff is a soft gel.