WO2022143234A1 - 耳机 - Google Patents

耳机 Download PDF

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Publication number
WO2022143234A1
WO2022143234A1 PCT/CN2021/139404 CN2021139404W WO2022143234A1 WO 2022143234 A1 WO2022143234 A1 WO 2022143234A1 CN 2021139404 W CN2021139404 W CN 2021139404W WO 2022143234 A1 WO2022143234 A1 WO 2022143234A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
earphone
communication
bracket
net
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/139404
Other languages
English (en)
French (fr)
Inventor
张铁男
单海波
李岩
莫大胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP21913975.5A priority Critical patent/EP4247001A4/en
Priority to US18/270,270 priority patent/US12407973B2/en
Publication of WO2022143234A1 publication Critical patent/WO2022143234A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H04R1/086—Protective screens, e.g. all weather or wind screens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01—Hearing devices using active noise cancellation

Definitions

  • the present application relates to the field of earphones, and in particular, to an earphone.
  • Feedforward active noise reduction picks up the noise of the external environment and cancels the environment, which has poor noise reduction effect on wind noise, and even amplifies wind noise; feedback active noise reduction Headphones or in-ear headphones, because the passive noise reduction effect of earmuffs and earbags is good, and they are less affected by wind noise. Therefore, the noise reduction microphone set in them has a better noise reduction effect; hybrid active noise reduction Combine the above two noise reduction methods. For semi-in-ear headphones, since there is no passive noise reduction structure such as earmuffs or earbags, the feedback noise reduction microphone will be disturbed by the external environment, thereby making the noise reduction effect worse.
  • an earphone including a casing, a speaker, a noise reduction microphone, a dustproof net and an appearance net. It is used to connect the internal space and the external environment, the communication surface is provided with a sound outlet, the sound outlet communicates with the internal space, the speaker is arranged in the internal space, and the sound collection channel is located in the internal space.
  • a sound-receiving port is formed on the communication surface, the sound-receiving channel is also formed with a sound-receiving hole at another position of the casing, the noise reduction microphone is arranged on the casing and covers the sound-receiving hole, and the dust-proof The net is arranged on the communication surface, and the appearance net is arranged on the casing and covers the communication surface.
  • the earphone is designed with a sound hole on the connecting surface, and a sound-receiving port is designed on the connecting surface through the sound-receiving channel.
  • the resulting noise can be as close as possible to the noise in the ear canal, optimizing the conditions for noise reduction and debugging, and achieving better noise reduction effects.
  • the dustproof net covers the sound outlet hole and the sound receiving port. Covering the sound hole and the sound receiving port can achieve better dustproof effect.
  • the acoustic resistance of the area covering the sound-receiving port by the dust-proof net is lower than the acoustic resistance of the area covering the sound outlet hole.
  • the low acoustic resistance of the sound-receiving port is conducive to the noise reduction microphone receiving noise through the sound-receiving port, so that the received noise can be as close as possible to the noise in the ear canal.
  • the acoustic resistance of the dust filter at the sound-receiving port is less than or equal to 10 MKS Rayls.
  • the dustproof net covers the sound outlet hole, and does not cover the sound collection port. Not covering the radio port allows the noise-cancelling microphone to receive the noise in the ear canal to the greatest extent possible.
  • the casing includes an outer shell and a bracket
  • the outer shell is provided with a communication hole and the inner space
  • the communication hole communicates with the external environment
  • the bracket is provided in the inner space and It is arranged close to the communication hole
  • the bracket is provided with the communication surface facing the communication hole
  • the sound outlet hole communicates with the inner space and the communication hole
  • the sound collecting channel is arranged on the bracket, so
  • the noise reduction microphone is arranged on the bracket, the sound-receiving port communicates with the sound-receiving channel and the communication hole, and the appearance net is located between the casing and the bracket, and covers the communication hole.
  • the design of the bracket is conducive to the rational design of the radio channel and the position of the sound outlet.
  • the outer casing includes a front casing and a rear casing, the front casing is arranged on the rear casing, and the front casing and the rear casing jointly surround the inner space, so the inner space is formed.
  • the bracket and the speaker are arranged on the front shell, the speaker and the bracket divide the inner space into a front cavity and a rear cavity, and the front cavity is located between the speaker and the bracket, so The rear cavity is located between the speaker and the rear shell, the noise reduction microphone is located in the front cavity, the communication hole is provided on the front shell, and the communication hole communicates the front cavity and the outside environment, the dustproof net and the appearance net are arranged between the front shell and the bracket.
  • the design of the front and rear shells is conducive to the installation of brackets, speakers, etc., and is convenient for production and processing.
  • the bracket is provided with a mounting surface close to the sound outlet hole, the sound receiving hole is formed on the mounting surface, and is close to the communication surface, and the noise reduction microphone passes through a connector It is arranged on the installation surface, and the sound-receiving hole is communicated with the sound-receiving end of the noise reduction microphone.
  • the design of the installation surface close to the sound outlet is conducive to achieving the maximum proximity of the noise reduction microphone to the connecting surface, and is more conducive to receiving noise in the ear canal.
  • the earphone further includes a sealing member, and the sealing member is used to seal the communication hole and the casing at the communication surface and the bracket.
  • the seals are designed to prevent dust and sound waves from propagating through the gap.
  • the sealing member includes a first sealing member, a second sealing member and a third sealing member, the first sealing member is provided between the dustproof net and the communication surface, To seal the dustproof net on the communication surface, the second seal is set between the shell and the appearance net, so as to set the appearance net on the shell, and seal The communication hole is sealed, and the third seal is arranged between the dustproof net and the appearance net to seal the dustproof net and the appearance net.
  • openings are provided on the first sealing member and the third sealing member at positions relative to the sound outlet hole and the sound receiving port, so that all parts of the communication hole are provided with openings.
  • the sound hole and the sound receiving port are separated between the housing and the bracket. The sound emitted by the speaker from the sound outlet has the least influence on the noise reduction microphone in the sound receiving port, so that the noise reduction microphone can receive the noise in the ear canal as much as possible.
  • the first sealing member, the second sealing member and the third sealing member are double-sided tape or glue. Save costs and improve installation efficiency.
  • the sound collecting port and the sound outlet hole are isolated from each other, and the sound collecting channel and the front cavity are isolated from each other by the bracket. Minimizes the speaker's impact on the noise-cancelling microphone's pickup.
  • the rear shell includes a front end of an earphone and a rear end of the earphone, the front end of the earphone is used for installing the speaker and the front shell is arranged, and the rear end of the earphone is used for hand-holding.
  • the rear end of the earphone is convenient for the user to hold, so that the earphone can be worn on the user's ear.
  • the back cavity is provided with a circuit board, a battery module, a power input unit, a communication unit or a call microphone.
  • the appearance mesh is a metal mesh. Increase the fashion sense and mechanical reliability of the headset, and avoid damage to the inner dust filter, speakers and noise-cancelling microphones by external forces.
  • the acoustic resistance of the appearance mesh is less than or equal to 10Rayls MKS.
  • the sound collecting port is located on a side of the communication surface away from the speaker. It is convenient to reduce the impact of the speaker on the sound pickup of the noise-cancelling microphone.
  • the headset is further provided with an active noise reduction microphone.
  • the sound quality can be further improved.
  • FIG. 1 is a schematic structural diagram of an earphone according to a first embodiment of the present application.
  • FIG. 2 is a partially exploded perspective view of the earphone shown in FIG. 1 .
  • FIG. 3 is a schematic perspective view of the bracket of the earphone shown in FIG. 2 .
  • FIG. 4 is a cross-sectional view of the earphone shown in FIG. 1 .
  • FIG. 5 is a cross-sectional view of an earphone according to a second embodiment of the present application.
  • FIG. 6 is a cross-sectional view of an earphone provided by a third embodiment of the present application.
  • FIG. 7 is a cross-sectional view of an earphone according to a fourth embodiment of the present application.
  • first”, second, etc. are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first”, “second”, etc., may expressly or implicitly include one or more of that feature.
  • plural means two or more. Orientation terms such as “upper”, “lower”, “left” and “right” are defined relative to the orientation in which the components in the drawings are schematically placed. It should be understood that these directional terms are relative concepts, and they are used with Relative to the description and clarification, it may vary accordingly depending on the orientation in which the components are placed in the figures.
  • connection should be understood in a broad sense.
  • connection may be a fixed connection, a detachable connection, or an integral body; it may be Directly connected or indirectly connected through an intermediary.
  • connection includes any and all combinations of one or more of the associated listed items.
  • an earphone 100 is provided according to the first embodiment of the present application.
  • the earphone 100 can perform active noise reduction to cancel the noise in the ear canal, thereby improving the sound effect and sound quality of the earphone 100 .
  • the earphone 100 may be an in-ear earphone, a semi-in-ear earphone, a headphone, etc., and in particular, a semi-in-ear earphone.
  • the earphone 100 includes a casing 10 , a speaker 20 , a noise reduction microphone 30 , a dust filter 40 and an appearance mesh 50 .
  • the housing 10 is provided with an inner space 13 which communicates with the outside.
  • the speaker 20 and the noise reduction microphone 30 are disposed in the inner space 13 (refer to FIG. 4 ) of the casing 10 .
  • the dustproof net 40 and the appearance net 50 are arranged on the casing 10 and are located at the place where the inner space 13 communicates with the outside, so that the inner space 13 communicates with the outside through the dustproof net 40 and the appearance net 50 .
  • the casing 10 includes a casing 11 and a bracket 12 .
  • the housing 11 is provided with the inner space 13 and the communication hole 14 .
  • the communication hole 14 is used to communicate the inner space 13 with the external environment, and when the earphone 100 is worn on the human ear, the communication hole 14 is directed into the ear canal of the human body.
  • the bracket 12 is disposed in the inner space 13 of the housing 11 and is disposed close to the communication hole 14 .
  • the noise reduction microphone 30 is installed on the bracket 12 .
  • the dustproof net 40 and the appearance net 50 are located between the casing 11 and the bracket 12 and cover the communication hole 14 .
  • the housing 11 includes a front case 111 and a rear case 112 .
  • the front case 111 is disposed on the rear case 112 , and the front case 111 and the rear case 112 together form the inner space 13 .
  • the bracket 12 is arranged on the front case 111 .
  • the speaker 20 is installed on the front case 111 .
  • the speaker 20 and the bracket 12 divide the inner space 13 into a front cavity 131 and a rear cavity 132 .
  • the front cavity 131 is located between the speaker 20 and the bracket 12 .
  • the rear cavity 132 is located between the speaker 20 and the rear case 112 .
  • the noise reduction microphone 30 is located in the front cavity 131.
  • the communication hole 14 is provided on the front case 111 .
  • the communication hole 14 communicates the front cavity 131 with the external environment.
  • the dustproof net 40 and the appearance net 50 are disposed between the front case 111 and the bracket 12 and cover the communication hole 14 .
  • the bracket 12 is substantially matched with the inner wall of the front case 111 .
  • the bracket 12 is provided with a communication surface 121 toward the communication hole 14 .
  • the communication surface 121 is provided with a sound outlet hole 122 .
  • the sound outlet hole 122 communicates with the front cavity 131 and the communication hole 14 .
  • the support 12 is also provided with a radio channel 123 .
  • the sound collecting channel 123 is formed with a sound collecting port 124 on the communication surface 121 , and the sound collecting channel 123 is further formed with a sound collecting hole 125 at another position of the bracket 12 .
  • the noise reduction microphone 30 is disposed on the bracket 12 and covers the sound receiving hole 125 .
  • the sound collecting port 124 and the sound outlet hole 122 are isolated from each other, and the sound collecting channel 123 and the front cavity 131 are isolated (disconnected) from each other by the bracket 12 , so that the speaker The effect of 20 on the pickup of the noise reduction microphone 30 is minimized.
  • the sound receiving port 124 is located on the side of the communication surface 121 away from the speaker 20 .
  • the number of the sound outlet holes 122 may also be one or more.
  • the loudspeaker 20 is used to emit sound into the front cavity 131 to be transmitted to the ear canal through the sound outlet hole 122 and the communication hole 14 .
  • the noise reduction microphone 30 is a feedback microphone (Feedback Mic, FB Mic or Error Mic), which is used to receive, pick up and detect the residual noise in the ear canal between the earphone and the human ear after wearing, through an algorithm (the noise reduction microphone 30 is built-in or Other units in the earphone 100 or an external processing unit) make the speaker 20 of the earphone release reverse sound waves to cancel the noise.
  • FB Mic FB Mic or Error Mic
  • a mounting surface 126 is provided on the inner wall of the bracket 12 near the sound outlet hole 122 .
  • the sound-receiving hole 125 is formed on the mounting surface 126 and is close to the communication surface 121 .
  • the noise reduction microphone 30 is disposed on the mounting surface 126 through a connecting member 31 , and the sound receiving hole 125 communicates with the sound receiving end of the noise reduction microphone 30 , so as to pass through the communication hole 14 and the sound receiving channel.
  • 123 transmits the noise in the ear canal to the noise reduction microphone 30 .
  • the connecting member 31 may be an adhesive such as double-sided tape, glue, or the like.
  • the dustproof net 40 is disposed on the communication surface 121 and covers the sound outlet hole 122 and the sound receiving port 124 .
  • the appearance net 50 is disposed on the front case 111 and completely covers the communication hole 14 .
  • the headset 100 also includes a seal 60 .
  • the sealing member 60 is used to seal the communication hole 14 and the casing 11 and the bracket 12 at the communication surface 121 .
  • the sealing member 60 includes a first sealing member 61 , a second sealing member 62 and a third sealing member 63 .
  • the dustproof net 40 and the appearance net 50 are both plane nets with a shape similar to the communication surface 121 .
  • the first sealing member 61 is disposed between the dustproof net 40 and the communication surface 121 to seal the dustproof net 40 on the communication surface 121 .
  • the second sealing member 62 is disposed between the front case 111 and the appearance net 50 , so as to set the appearance net 50 on the front case 111 and seal the communication hole 14 .
  • the third sealing member 63 is disposed between the dustproof net 40 and the appearance net 50 to seal between the dustproof net 40 and the appearance net 50 .
  • the first sealing member 61 and the third sealing member 63 are provided with openings at positions opposite to the sound outlet hole 122 and the sound receiving port 124 , so that the sound outlet hole 122 and the sound receiving port 124 at the communication hole 14 are in the housing 11 . It is separated from the bracket 12 , so that the sound emitted by the speaker 20 from the sound outlet 122 has the least impact on the noise reduction microphone 30 in the sound receiving port 124 , so that the noise reduction microphone 30 can receive the noise in the ear canal as much as possible.
  • the second sealing member 62 is substantially annular, so as to set the appearance net 50 on the wall surface around the communication hole 14 of the front case 111 .
  • the first sealing member 61 , the second sealing member 62 and the third sealing member 63 may all be selected from adhesives such as double-sided adhesive tape and glue.
  • the dustproof net 40 is used to prevent external dust from entering the earphone and affecting the sound effect and sound quality of the earphone.
  • the appearance mesh 50 is preferably a metal mesh, so as to increase the fashion sense and mechanical reliability of the earphone, and prevent the inner dustproof mesh 40, the loudspeaker 20 and the noise reduction microphone 30 from being damaged by external forces, such as preventing the thorns of external sharp objects. enter.
  • the damping of the appearance net 50 should be as small as possible.
  • the rear shell 112 includes a front end 1121 of the earphone and a rear end 1122 of the earphone.
  • the front end 1121 of the earphone is used to install the speaker 20 and set the front shell 111 .
  • the rear end 1122 of the earphone is convenient for the user to hold, so that the earphone 100 can be worn on the ear of the user.
  • the user When in use, the user wears the front end 1121 of the earphone provided with the front shell 111 on the ear by holding the rear end 1122 of the earphone, so that the side provided with the communication hole 14 faces the ear canal, and receives the noise in the ear canal through the noise reduction microphone 30, And the speaker 20 emits a sound with reverse sound waves, so that the noise in the ear canal is eliminated from the sound heard by the human ear, and the sound effect and sound quality of the earphone are improved.
  • the back cavity 132 is used to set other components of the earphone, such as a circuit board for controlling the earphone, a battery module for storing electrical energy or a power input unit for communicating with an external power supply unit, and for signal transmission with the outside world.
  • the earphone 100 may also be provided with active noise reduction microphones (Feedforward Mic or Ref Mic), pressure relief holes and other common earphone components and designs for improving sound quality and wearing comfort.
  • active noise reduction microphones Freedforward Mic or Ref Mic
  • pressure relief holes and other common earphone components and designs for improving sound quality and wearing comfort.
  • an independent sound-receiving channel 123 is arranged on the bracket 12, so that the sound-receiving port 124 is as close as possible to the position of the ear canal, and the sound-receiving port of the sound-receiving channel 123 on the communication surface 121 is connected 124 is separated from the sound outlet hole 122, and at the same time, a dustproof net 40 is added, and the sound collecting port 124 between the communication hole 14 and the communication surface 121 is separated from the sound outlet hole 122 by the sealing member 60, so that the noise reduction microphone 30 can pass the sound collection.
  • the port 124 receives noise toward the ear canal, so that the received noise can be as close as possible to the noise in the ear canal, optimizes the conditions for noise reduction and adjustment, and achieves better noise reduction effect and better dustproof effect.
  • an earphone 200 is provided according to the second embodiment of the present application.
  • the earphone 200 has the same structure as the earphone 100 , including a casing 10 , a speaker 20 , a noise reduction microphone 30 , a dustproof net 40 and an appearance net 50 .
  • the main difference from the earphone 100 in the first embodiment shown in FIG. 1 is that the structures of the dustproof net 40 , the appearance net 50 and the sealing member 60 are different.
  • the dustproof net 40 only covers the sound outlet hole 122 and does not cover the sound receiving port 124 .
  • the appearance net 50 is in the shape of outward bulge.
  • the third sealing member 63 of the sealing members 60 is substantially annular, so as to connect the appearance net 50 and the outer periphery of the dustproof net 40 in a sealing manner.
  • the noise microphone 30 receives noise toward the ear canal through the sound receiving port 124, so that the received noise can be as close as possible to the noise in the ear canal, optimize the conditions for noise reduction debugging, and achieve a better noise reduction effect.
  • an earphone 300 is provided in the third embodiment of the present application.
  • the earphone 300 has the same structure as the earphone 200 , including a casing 10 , a speaker 20 , a noise reduction microphone 30 , a dustproof net 40 and an appearance net 50 .
  • the main difference from the earphone 200 in the second embodiment shown in FIG. 5 is that the structure of the dustproof net 40 is different.
  • the aperture density of the area covering the sound outlet hole 122 of the dust filter 40 is not the same as the aperture density of the area covering the sound collecting port 124, so that the dustproof mesh 40 at the sound collecting port 124 has a different aperture density.
  • the aperture is larger, so that the acoustic resistance of the dust filter 40 at the sound-receiving port 124 is lower (less than or equal to 10 MKS Rayls).
  • the earphone 300 by orienting the communication surface 121 toward the ear canal, an independent sound-receiving channel 123 is provided on the bracket 12, and the sound-receiving port 124 of the sound-receiving channel 123 on the communication surface 121 is separated from the sound outlet hole 122.
  • the dustproof net 40 is adjusted to reduce the damping of the dustproof net 40 at the sound-receiving port 124, so that the noise reduction microphone 30 can receive the noise through the sound-receiving mouth 124 toward the ear canal, so that the received noise can be as close as possible to the noise in the ear canal, Optimize the conditions for noise reduction debugging to achieve better noise reduction effects.
  • an earphone 400 is provided according to the fourth embodiment of the present application.
  • the earphone 400 has the same structure as the earphone 100 , and includes a casing 10 , a speaker 20 , a noise reduction microphone 30 and a dust filter 40 .
  • the main difference from the earphone 100 in the second embodiment shown in FIG. 1 is that the appearance mesh 50 is not provided.
  • the dustproof net 40 can be made of a material with relatively high mechanical strength, so as to simultaneously play the roles of the dustproof net 40 and the appearance net 50 in the earphone 100 .
  • the sealing member 60 only includes the first sealing member 61 and the second sealing member 62 .
  • the first sealing member 61 is disposed between the dustproof net 40 and the communication surface 121 to seal the dustproof net 40 on the communication surface 121 .
  • the second sealing member 62 is disposed between the front case 111 and the dustproof net 40 , so as to set the dustproof net 40 on the front case 111 and seal the communication hole 14 .
  • the density of the apertures on the dust filter 40 can also be similar to that of the earphone 300 in the third embodiment. 40 has a lower acoustic resistance at the sound-receiving port 124.
  • the dustproof nets 40 may be more than one, and cover the sound outlet holes 122 and the sound receiving ports 124 respectively (can be provided on the hole wall or on the communication surface 121 ). surface), the sealing member 60 only includes the second sealing member 62, and is disposed between the front case 111 and the communication surface 121, so as to seal the sealing member on the front case 111 through the communication surface 121.
  • the communication hole 14 is sealed.
  • the earphone 400 provided by the present application, by orienting the communication surface 121 toward the ear canal, an independent sound collection channel 123 is provided on the bracket 12, and the sound collection port 124 of the sound collection channel 123 on the communication surface 121 is separated from the sound outlet hole 122.
  • the dustproof net 40 is adjusted to reduce the damping of the dustproof net 40 at the sound-receiving port 124, so that the noise reduction microphone 30 can receive the noise through the sound-receiving mouth 124 toward the ear canal, so that the received noise can be as close as possible to the noise in the ear canal, Optimize the conditions for noise reduction debugging to achieve better noise reduction effects.
  • the present application also proposes a terminal device, the terminal device is provided with the above-mentioned earphones 100 , 200 or 300 .
  • the terminal device may be glasses, AR device, VR device or other products with audio effects.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

一种耳机，包括壳体、扬声器、降噪麦克风、防尘网及外观网，壳体设有内部空间、连通面及收音通道，连通面用于连通内部空间与外部环境，连通面上设有出音孔，出音孔连通内部空间，扬声器设于内部空间，收音通道于连通面上形成有收音口，收音通道于壳体的另一位置还形成有收音孔，降噪麦克风设于壳体上且覆盖收音孔，防尘网设于连通面上，外观网设于壳体上且将连通面覆盖。耳机通过在连通面上设计出音孔，并通过收音通道在连通面上设计收音口，同时增加防尘网及外观网，从而使降噪麦克风通过收音口朝向耳道接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声，优化降噪调试的条件，实现更优的降噪效果，同时防尘效果较好。

Description

耳机
相关申请的交叉引用
本申请要求在2020年12月30日提交中国专利局、申请号为202011612556.8、申请名称为“耳机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及耳机领域，尤其涉及一种耳机。
背景技术
目前市场上的耳机通常采用主动降噪的方式，对人耳听到的噪声进行抵消，从而优化耳机的音效及音质。目前主动降噪主要有三种方式：前馈式主动降噪、反馈式主动降噪及混合主动降噪。前馈式主动降噪为拾取外部环境的噪声，并对环境进行抵消，对风噪的降噪效果较差，甚至会放大风噪；反馈式主动降噪通过对耳道中的噪声进行拾取，对于头戴式或入耳式的耳机，由于耳套及耳包的被动降噪效果好，受风噪的影响较小，因此，设于其中的降噪麦克风的降噪效果较好；混合主动降噪结合上述两种降噪方式。对于半入耳式耳机，由于没有耳套或耳包等被动降噪结构，反馈式降噪的麦克风会受到外界环境的干扰，从而使降噪效果变差。
发明内容
有鉴于此，有必要提供一种耳机，便于提高降噪效果。
本申请实施例的第一方面，提供一种耳机，包括壳体、扬声器、降噪麦克风、防尘网及外观网，所述壳体设有内部空间、连通面及收音通道，所述连通面用于连通所述内部空间与外部环境，所述连通面上设有出音孔，所述出音孔连通所述内部空间，所述扬声器设于所述内部空间，所述收音通道于所述连通面上形成有收音口，所述收音通道于所述壳体的另一位置还形成有收音孔，所述降噪麦克风设于所述壳体上且覆盖所述收音孔，所述防尘网设于所述连通面上，所述外观网设于所述壳体上且将所述连通面覆盖。
所述耳机通过在连通面上设计出音孔，并通过收音通道在连通面上设计收音口，同时增加防尘网及外观网，从而使降噪麦克风通过收音口朝向耳道接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声，优化降噪调试的条件，实现更优的降噪效果。
第一方面的一种可能设计，所述防尘网覆盖所述出音孔及所述收音口。覆盖出音孔及收音口可实现更好的防尘效果。
第一方面的一种可能设计，所述防尘网覆盖所述收音口的区域的声阻低于覆盖所述出音孔的区域的声阻。收音口的声阻较低有利于降噪麦克风通过收音口接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声。
第一方面的一种可能设计，所述防尘网在所述收音口处的声阻小于或等于10MKS Rayls。
第一方面的一种可能设计，所述防尘网覆盖所述出音孔，且不覆盖所述收音口。不 覆盖收音口可实现降噪麦克风最大程度上的接收耳道中的噪声。
第一方面的一种可能设计，所述壳体包括外壳及支架，所述外壳设有连通孔及所述内部空间，所述连通孔连通外部环境，所述支架设于所述内部空间中且靠近所述连通孔设置，所述支架朝向所述连通孔设有所述连通面，所述出音孔连通所述内部空间与所述连通孔，所述收音通道设于所述支架上，所述降噪麦克风设于所述支架上，所述收音口连通所述收音通道与所述连通孔，所述外观网位于所述外壳与所述支架之间，且将所述连通孔覆盖。支架的设计，有利于收音通道及出音孔位置的合理设计。
第一方面的一种可能设计，所述外壳包括前壳及后壳，所述前壳设于所述后壳上，且所述前壳与所述后壳共同围绕形成所述内部空间，所述支架及所述扬声器设于所述前壳上，所述扬声器与所述支架将所述内部空间分隔成前腔及后腔，所述前腔位于所述扬声器与所述支架之间，所述后腔位于所述扬声器与所述后壳之间，所述降噪麦克风位于所述前腔中，所述连通孔设于所述前壳上，所述连通孔连通所述前腔与外部环境，所述防尘网及所述外观网设于所述前壳与所述支架之间。前后壳的设计，有利于支架、扬声器等的安装，便于生产加工。
第一方面的一种可能设计，所述支架靠近所述出音孔设有安装面，所述收音孔形成于所述安装面上，且靠近所述连通面，所述降噪麦克风通过连接件设于所述安装面上，且所述收音孔与所述降噪麦克风的收音端连通。靠近出音孔的安装面的设计，有利于实现降噪麦克风最大程度的接近连通面，更有利于接收耳道中的噪声。
第一方面的一种可能设计，所述耳机还包括密封件，所述密封件用于将所述连通孔与所述连通面处的所述外壳与所述支架密封。密封件的设计有利于防尘、防止声波从缝隙传播。
第一方面的一种可能设计，所述密封件包括第一密封件、第二密封件及第三密封件，所述第一密封件设于所述防尘网与所述连通面之间，以将所述防尘网密封设于所述连通面上，所述第二密封件设于所述外壳与所述外观网之间，以将所述外观网设于所述外壳上，且将所述连通孔密封，所述第三密封件设于所述防尘网与所述外观网之间，以将所述防尘网与所述外观网之间密封。
第一方面的一种可能设计，所述第一密封件及所述第三密封件上相对所述出音孔及所述收音口的位置均设有开口，以使所述连通孔处的所述出音孔与所述收音口在所述外壳与所述支架之间被分隔。使得扬声器从出音孔中发出的声音对收音口内的降噪麦克风影响最小，使得降噪麦克风能够尽可能接收耳道中的噪声。
第一方面的一种可能设计，所述第一密封件、所述第二密封件及所述第三密封件为双面胶或胶水。节约成本，提高安装效率。
第一方面的一种可能设计，所述收音口与所述出音孔相互隔离，且所述收音通道与所述前腔通过所述支架相互隔离。使扬声器对降噪麦克风的拾音的影响降到最低。
第一方面的一种可能设计，所述后壳包括耳机前端及耳机后端，所述耳机前端用于安装所述扬声器并设置所述前壳，所述耳机后端用于手持。耳机后端便于使用者手持，以将所述耳机佩戴于使用者耳部。
第一方面的一种可能设计，所述后腔设置有电路板、电池模块、电量输入单元、通讯单元或通话麦克风。
第一方面的一种可能设计，所述外观网为金属网。增加耳机的时尚感及机械可靠性， 避免内侧防尘网、扬声器及降噪麦克风等受到外力而遭到破坏。
第一方面的一种可能设计，所述外观网的声阻小于或等于10Rayls MKS。
第一方面的一种可能设计，所述收音口位于所述连通面远离所述扬声器的一侧。便于减小扬声器对降噪麦克风拾音的影响。
第一方面的一种可能设计，所述耳机还设置有主动降噪麦克风。可进一步改善音质。
附图说明
图1是本申请第一实施例提供的一种耳机的结构示意图。
图2是图1所示耳机的部分分解立体示意图。
图3是图2所示耳机的支架的立体示意图。
图4是图1所示耳机的剖视图。
图5是本申请第二实施例提供的一种耳机的剖视图。
图6是本申请第三实施例提供的一种耳机的剖视图。
图7是本申请第四实施例提供的一种耳机的剖视图。
主要元件符号说明
耳机                         100、200、300
壳体                         10
外壳                         11
前壳                         111
后壳                         112
耳机前端                     1121
耳机后端                     1122
支架                         12
连通面                       121
出音孔                       122
收音通道                     123
收音口                       124
收音孔                       125
安装面                       126
内部空间                     13
前腔                         131
后腔                         132
连通孔                       14
扬声器                       20
降噪麦克风                   30
连接件                       31
防尘网                       40
外观网                       50
密封件                       60
第一密封件                   61
第二密封件                   62
第三密封件                   63
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
以下，如果有用到，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。“上”、“下”、“左”、“右”等方位术语是相对于附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。
在本申请中，如果有用到，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在下述实施例结合示意图进行详细描述时，为便于说明，表示器件局部结构的图会不依一般比例作局部放大，而且所述示意图只是示例，其在此不应限制本申请保护的范围。
实施例一
如图1及图2所示，为本申请第一种实施例提供的一种耳机100。所述耳机100能够进行主动降噪，将耳道中的噪声抵消，从而提高耳机100的音效及音质。所述耳机100可为入耳式耳机、半入耳式耳机、头戴式耳机等，特别涉及半入耳式耳机。
所述耳机100包括壳体10、扬声器20、降噪麦克风30、防尘网40及外观网50。所述壳体10设有与外部连通的内部空间13。所述扬声器20及所述降噪麦克风30设于所述壳体10的内部空间13(参阅图4)中。所述防尘网40及外观网50设于所述壳体10上且位于所述内部空间13与外部连通之处，以使所述内部空间13通过防尘网40及外观网50与外部连通。
所述壳体10包括外壳11及支架12。所述外壳11设有所述内部空间13及连通孔14。所述连通孔14用于连通内部空间13与外部环境，且在所述耳机100佩戴于人耳上时，所述连通孔14指向人体的耳道中。所述支架12设于外壳11的内部空间13中且靠近所述连通孔14设置。所述降噪麦克风30设于所述支架12上。所述防尘网40及外观网50位于所述外壳11与支架12之间，且将所述连通孔14覆盖。
具体地，所述外壳11包括前壳111及后壳112。所述前壳111设于所述后壳112上，且所述前壳111与所述后壳112共同围绕形成所述内部空间13。所述支架12设于所述前壳111上。所述扬声器20设于所述前壳111上。所述扬声器20与所述支架12将所述内部空间13分隔成前腔131及后腔132。前腔131位于所述扬声器20与所述支架12之间。后腔132位于所述扬声器20与所述后壳112之间。所述降噪麦克风30位于所述前 腔131中。所述连通孔14设于所述前壳111上。所述连通孔14连通所述前腔131与外部环境。所述防尘网40及外观网50设于所述前壳111与支架12之间，且将所述连通孔14覆盖。
请同时参阅图3及图4，支架12与所述前壳111的内壁大致相匹配。所述支架12朝向所述连通孔14设有连通面121。所述连通面121上设有出音孔122。所述出音孔122连通所述前腔131与所述连通孔14。所述支架12上还设有收音通道123。所述收音通道123于所述连通面121上形成有收音口124，所述收音通道123于所述支架12的另一位置还形成有收音孔125。所述降噪麦克风30设于所述支架12上且覆盖所述收音孔125。在所述连通面121上，所述收音口124与所述出音孔122相互隔离，且所述收音通道123与所述前腔131通过所述支架12相互隔离(不连通)，以使扬声器20对降噪麦克风30的拾音的影响降到最低。
本实施例中，所述收音口124位于所述连通面121远离所述扬声器20的一侧。所述出音孔122为两个，且对称设于所述连通面121上，所述收音口124位于两个出音孔122之间。但不限于此，在其他实施例中，所述出音孔122还可为一个或多个。
所述扬声器20用于向所述前腔131中发声以通过所述出音孔122及连通孔14传至耳道中。
所述降噪麦克风30为反馈麦克风(Feedback Mic，FB Mic或Error Mic)，用于接收、拾取检测佩戴后，耳机与人耳之间耳道中残留的噪声，通过算法(降噪麦克风30内置或耳机100中的其他单元或外接的处理单元)让耳机的扬声器20释放反向声波去抵消噪声。
所述支架12内壁靠近所述出音孔122设有安装面126。所述收音孔125形成于所述安装面126上，且靠近所述连通面121。所述降噪麦克风30通过一连接件31设于所述安装面126上，且所述收音孔125与所述降噪麦克风30的收音端连通，从而通过所述连通孔14及所述收音通道123将耳道中的噪声传至所述降噪麦克风30。
所述连接件31可为双面胶、胶水等粘接剂。
请同时参阅图4，所述防尘网40设于所述连通面121上，且将所述出音孔122及收音口124覆盖。所述外观网50设于所述前壳111上，且完全覆盖所述连通孔14。
所述耳机100还包括密封件60。所述密封件60用于将所述连通孔14与所述连通面121处的所述外壳11与所述支架12密封。
所述密封件60包括第一密封件61、第二密封件62及第三密封件63。所述防尘网40与所述外观网50均为与所述连通面121形状相似的平面网。所述第一密封件61设于所述防尘网40与所述连通面121之间，以将所述防尘网40密封设于所述连通面121上。所述第二密封件62设于所述前壳111与所述外观网50之间，以将所述外观网50设于所述前壳111上，且将所述连通孔14密封。所述第三密封件63设于所述防尘网40与所述外观网50之间，以将所述防尘网40与所述外观网50之间密封。
所述第一密封件61及第三密封件63上相对所述出音孔122及收音口124的位置均设有开口，以使连通孔14处的出音孔122与收音口124在外壳11与支架12之间被分隔，从而使得扬声器20从出音孔122中发出的声音对收音口124内的降噪麦克风30影响最小，使得降噪麦克风30能够尽可能接收耳道中的噪声。所述第二密封件62大致呈环形，以将所述外观网50设于所述前壳111的连通孔14的周围的壁面上。
所述第一密封件61、第二密封件62及第三密封件63可均选择双面胶、胶水等粘接剂。
所述防尘网40用于防止外部灰尘进入耳机而对耳机的音效及音质造成影响。
所述外观网50优选为金属网，以增加耳机的时尚感及机械可靠性，避免内侧防尘网40、扬声器20及降噪麦克风30等受到外力而遭到破坏，如防止外界尖锐物体的刺入。
所述外观网50的阻尼应尽可能的小。优选的，所述外观网50的声阻在10Rayls MKS(瑞利，在MKS制下，1瑞利为1帕斯卡-秒每米，1Rayls＝1Pa*s/m)以下，从而保证所述外观网50对降噪麦克风30收音的影响较小。
所述后壳112包括耳机前端1121及耳机后端1122。所述耳机前端1121用于安装所述扬声器20并设置所述前壳111。所述耳机后端1122便于使用者手持，以将所述耳机100佩戴于使用者耳部。
使用时，用户通过手持耳机后端1122，将设有前壳111的耳机前端1121佩戴于耳部，使设有连通孔14的一侧朝向耳道，通过降噪麦克风30接收耳道中的噪声，并使扬声器20发出带有反向声波的声音，从而使人耳听到的声音中消除了耳道中的噪声，提高了耳机的音效及音质。
所述后腔132用于设置耳机的其他元器件，如用于控制耳机的电路板、用于储存电能的电池模块或用于与外部供电单元连通的电量输入单元、用于与外界进行信号传递的通讯单元、用于接收使用者发出声音的通话麦克风等。
进一步地，所述耳机100还可设置主动降噪麦克风(Feedforward Mic或Ref Mic)、泄压孔等常见耳机中改善音质和佩戴舒适度的元件及设计。
本申请提供的耳机100，通过使连通面121朝向耳道中，在支架12上设独立的收音通道123，使收音口124尽可能接近耳道位置，并将连通面121上收音通道123的收音口124与出音孔122分隔，同时，增加防尘网40，并通过密封件60将连通孔14与连通面121之间的收音口124与出音孔122分隔，从而使降噪麦克风30通过收音口124朝向耳道接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声，优化降噪调试的条件，实现更优的降噪效果，同时防尘效果较好。
实施例二
如图5所示，为本申请第二种实施例提供的一种耳机200。
所述耳机200与耳机100结构相同，包括壳体10、扬声器20、降噪麦克风30、防尘网40及外观网50。与图1所示第一种实施例中的耳机100的主要区别在于：防尘网40、外观网50及密封件60的结构不同。
具体地，所述防尘网40仅覆盖所述出音孔122，并不覆盖所述收音口124。所述外观网50为向外凸起的形状。所述密封件60中的第三密封件63大致呈环形，以将所述外观网50与所述防尘网40的外周密封连接。
本申请提供的耳机200，通过使连通面121朝向耳道中，在支架12上设独立的收音通道123，并将连通面121上收音通道123的收音口124与出音孔122分隔，从而使降噪麦克风30通过收音口124朝向耳道接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声，优化降噪调试的条件，实现更优的降噪效果。
实施例三
如图6所示，为本申请第三种实施例提供的一种耳机300。
所述耳机300与耳机200结构相同，包括壳体10、扬声器20、降噪麦克风30、防尘网40及外观网50。与图5所示第二种实施例中的耳机200的主要区别在于：防尘网40的结构不同。
具体地，所述防尘网40覆盖所述出音孔122的区域的孔径密度与覆盖所述收音口124的区域的孔径密度并不相同，使所述收音口124处的防尘网40的孔径较大，从而使防尘网40在收音口124处的声阻较低(小于或等于10MKS Rayls)。
本申请提供的耳机300，通过使连通面121朝向耳道中，在支架12上设独立的收音通道123，并将连通面121上收音通道123的收音口124与出音孔122分隔，同时，增加防尘网40，并通过调节降低收音口124处防尘网40的阻尼，从而使降噪麦克风30通过收音口124朝向耳道接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声，优化降噪调试的条件，实现更优的降噪效果。
实施例四
如图7所示，为本申请第四种实施例提供的一种耳机400。
所述耳机400与耳机100结构相同，包括壳体10、扬声器20、降噪麦克风30及防尘网40。与图1所示第二种实施例中的耳机100的主要区别在于：并不设置外观网50。
具体地，所述防尘网40可采用机械强度较大的材料制得，以同时起到耳机100中防尘网40与外观网50的的作用。所述密封件60只包括第一密封件61和第二密封件62。所述第一密封件61设于所述防尘网40与所述连通面121之间，以将所述防尘网40密封设于所述连通面121上。所述第二密封件62设于所述前壳111与所述防尘网40之间，以将所述防尘网40设于所述前壳111上，且将所述连通孔14密封。
所述防尘网40上孔径密度还可通实施例三中所述耳机300类似，设计成覆盖所述出音孔122处的孔径大于覆盖所述收音口124处的孔径，从而使防尘网40在收音口124处的声阻较低。
当然，在其他实施例中，所述防尘网40还可为多个，且分别覆盖于所述出音孔122和所述收音口124处(可设于孔壁上或设于连通面121表面)，所述密封件60只包括第二密封件62，且设于所述前壳111与所述连通面121之间，以通过所述连通面121将所述前壳111上的所述连通孔14密封。
本申请提供的耳机400，通过使连通面121朝向耳道中，在支架12上设独立的收音通道123，并将连通面121上收音通道123的收音口124与出音孔122分隔，同时，增加防尘网40，并通过调节降低收音口124处防尘网40的阻尼，从而使降噪麦克风30通过收音口124朝向耳道接收噪声，使接收到的噪声能够尽可能接近耳道中的噪声，优化降噪调试的条件，实现更优的降噪效果。
本申请还提出一种终端装置，所述终端装置带有上述耳机100、200或300。
所述终端装置可为眼镜、AR装置、VR装置或其他带有音频效果的产品。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的公开范围之内。

Claims (19)

  1. 一种耳机，其特征在于，包括壳体、扬声器、降噪麦克风、防尘网及外观网，所述壳体设有内部空间、连通面及收音通道，所述连通面用于连通所述内部空间与外部环境，所述连通面上设有出音孔，所述出音孔连通所述内部空间，所述扬声器设于所述内部空间，所述收音通道于所述连通面上形成有收音口，所述收音通道于所述壳体的另一位置还形成有收音孔，所述降噪麦克风设于所述壳体上且覆盖所述收音孔，所述防尘网设于所述连通面上，所述外观网设于所述壳体上且将所述连通面覆盖。
  2. 如权利要求1所述的耳机，其特征在于，所述防尘网覆盖所述出音孔及所述收音口。
  3. 如权利要求2所述的耳机，其特征在于，所述防尘网覆盖所述收音口的区域的声阻低于覆盖所述出音孔的区域的声阻。
  4. 如权利要求3所述的耳机，其特征在于，所述防尘网在所述收音口处的声阻小于或等于10MKS Rayls。
  5. 如权利要求1所述的耳机，其特征在于，所述防尘网覆盖所述出音孔，且不覆盖所述收音口。
  6. 如权利要求1所述的耳机，其特征在于，所述壳体包括外壳及支架，所述外壳设有连通孔及所述内部空间，所述连通孔连通外部环境，所述支架设于所述内部空间中且靠近所述连通孔设置，所述支架朝向所述连通孔设有所述连通面，所述出音孔连通所述内部空间与所述连通孔，所述收音通道设于所述支架上，所述降噪麦克风设于所述支架上，所述收音口连通所述收音通道与所述连通孔，所述外观网位于所述外壳与所述支架之间，且将所述连通孔覆盖。
  7. 如权利要求6所述的耳机，其特征在于，所述外壳包括前壳及后壳，所述前壳设于所述后壳上，且所述前壳与所述后壳共同围绕形成所述内部空间，所述支架及所述扬声器设于所述前壳上，所述扬声器与所述支架将所述内部空间分隔成前腔及后腔，所述前腔位于所述扬声器与所述支架之间，所述后腔位于所述扬声器与所述后壳之间，所述降噪麦克风位于所述前腔中，所述连通孔设于所述前壳上，所述连通孔连通所述前腔与外部环境，所述防尘网及所述外观网设于所述前壳与所述支架之间。
  8. 如权利要求6所述的耳机，其特征在于，所述支架靠近所述出音孔设有安装面，所述收音孔形成于所述安装面上，且靠近所述连通面，所述降噪麦克风通过连接件设于所述安装面上，且所述收音孔与所述降噪麦克风的收音端连通。
  9. 如权利要求6所述的耳机，其特征在于，所述耳机还包括密封件，所述密封件用于将所述连通孔与所述连通面处的所述外壳与所述支架密封。
  10. 如权利要求9所述的耳机，其特征在于，所述密封件包括第一密封件、第二密封件及第三密封件，所述第一密封件设于所述防尘网与所述连通面之间，以将所述防尘网密封设于所述连通面上，所述第二密封件设于所述外壳与所述外观网之间，以将所述外观网设于所述外壳上，且将所述连通孔密封，所述第三密封件设于所述防尘网与所述外观网之间，以将所述防尘网与所述外观网之间密封。
  11. 如权利要求10所述的耳机，其特征在于，所述第一密封件及所述第三密封件上相对所述出音孔及所述收音口的位置均设有开口，以使所述连通孔处的所述出音孔与所述收音口在所述外壳与所述支架之间被分隔。
  12. 如权利要求10所述的耳机，其特征在于，所述第一密封件、所述第二密封件及所述第三密封件为双面胶或胶水。
  13. 如权利要求7所述的耳机，其特征在于，所述收音口与所述出音孔相互隔离，且所述收音通道与所述前腔通过所述支架相互隔离。
  14. 如权利要求7所述的耳机，其特征在于，所述后壳包括耳机前端及耳机后端，所述耳机前端用于安装所述扬声器并设置所述前壳，所述耳机后端用于手持。
  15. 如权利要求7所述的耳机，其特征在于，所述后腔设置有电路板、电池模块、电量输入单元、通讯单元或通话麦克风。
  16. 如权利要求1所述的耳机，其特征在于，所述外观网为金属网。
  17. 如权利要求1所述的耳机，其特征在于，所述外观网的声阻小于或等于10Rayls MKS。
  18. 如权利要求1所述的耳机，其特征在于，所述收音口位于所述连通面远离所述扬声器的一侧。
  19. 如权利要求1所述的耳机，其特征在于，所述耳机还设置有主动降噪麦克风。
PCT/CN2021/139404 2020-12-30 2021-12-18 耳机 Ceased WO2022143234A1 (zh)

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