Earphone

Abstract

An earphone comprises a housing, a loudspeaker, a noise reduction microphone, a dustproof net and an appearance net, the housing is provided with an internal space, a communication surface and a sound reception channel, the communication surface is used for communicating the internal space with an external environment, the communication surface is provided with a sound outlet hole, the sound outlet hole is communicated with the internal space, the loudspeaker is arranged in the internal space, and the sound reception channel is provided with a sound reception port on the communication surface. The sound receiving channel is provided with a sound receiving hole at the other position of the shell, the noise reduction microphone is arranged on the shell and covers the sound receiving hole, the dustproof net is arranged on the communication surface, and the appearance net is arranged on the shell and covers the communication surface. According to the earphone, the sound outlet hole is designed in the communication surface, the sound receiving port is designed in the communication surface through the sound receiving channel, and the dustproof net and the appearance net are additionally arranged, so that the noise reduction microphone receives noise towards the ear canal through the sound receiving port, the received noise can be close to the noise in the ear canal as much as possible, the noise reduction debugging condition is optimized, and the noise reduction debugging efficiency is improved. The better noise reduction effect is achieved, and meanwhile the dustproof effect is good.

Description

Technical Field

[0001] The present application relates to the field of earphones, and in particular to an earphone. Background Art

[0002] Headphones currently on the market usually use active noise reduction to offset the noise heard by the human ear, thereby optimizing the sound effect and sound quality of the headphones. There are currently three main methods of active noise reduction: feedforward active noise reduction, feedback active noise reduction, and hybrid active noise reduction. Feedforward active noise reduction picks up noise from the external environment and offsets the environment. It has a poor noise reduction effect on wind noise and may even amplify wind noise; feedback active noise reduction picks up noise in the ear canal. For head-mounted or in-ear headphones, since the passive noise reduction effect of earmuffs and ear bags is good, they are less affected by wind noise. Therefore, the noise reduction effect of the noise reduction microphone installed therein is better; hybrid active noise reduction combines the above two noise reduction methods. For semi-in-ear headphones, since there are no passive noise reduction structures such as earmuffs or ear bags, the microphone of the feedback noise reduction will be disturbed by the external environment, which will make the noise reduction effect worse. Summary of the invention

[0003] In view of this, it is necessary to provide a headset to improve the noise reduction effect.

[0004] According to a first aspect of an embodiment of the present application, there is provided an earphone, comprising a shell, a speaker, a noise reduction microphone, a dustproof net and an appearance net, the shell being provided with an internal space, a connecting surface and a sound receiving channel, the connecting surface being used to connect the internal space with the external environment, a sound outlet hole being provided on the connecting surface, the sound outlet hole being connected to the internal space, the speaker being provided in the internal space, the sound receiving channel being provided with a sound receiving port on the connecting surface, the sound receiving channel being further provided with a sound receiving hole at another position of the shell, the noise reduction microphone being provided on the shell and covering the sound receiving hole, the dustproof net being provided on the connecting surface, and the appearance net being provided on the shell and covering the connecting surface.

[0005] The earphone is designed with a sound hole on the connecting surface, and a sound receiving port on the connecting surface through a sound receiving channel, and a dustproof net and an appearance net are added, so that the noise reduction microphone receives noise toward the ear canal through the sound receiving port, so that the received noise can be as close to the noise in the ear canal as possible, thereby optimizing the conditions for noise reduction debugging and achieving a better noise reduction effect.

[0006] In a possible design of the first aspect, the dustproof net covers the sound outlet and the sound receiving port. Covering the sound outlet and the sound receiving port can achieve a better dustproof effect.

[0007] In a possible design of the first aspect, the acoustic impedance of the area where the dustproof net covers the sound receiving port is lower than the acoustic impedance of the area covering the sound outlet. The lower acoustic impedance 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.

[0008] In a possible design of the first aspect, the acoustic resistance of the dustproof net at the sound receiving port is less than or equal to 10 MKS Rayls.

[0009] In a possible design of the first aspect, the dustproof net covers the sound outlet but does not cover the sound receiving port. Not covering the sound receiving port enables the noise reduction microphone to receive noise in the ear canal to the greatest extent.

[0010] In a possible design of the first aspect, the shell includes an outer shell and a bracket, the outer shell is provided with a connecting hole and the internal space, the connecting hole is connected to the external environment, the bracket is arranged in the internal space and is arranged close to the connecting hole, the bracket is provided with the connecting surface facing the connecting hole, the sound outlet hole connects the internal space and the connecting hole, the sound receiving channel is arranged on the bracket, the noise reduction microphone is arranged on the bracket, the sound receiving port connects the sound receiving channel and the connecting hole, and the appearance net is located between the outer shell and the bracket and covers the connecting hole. The design of the bracket is conducive to the reasonable design of the sound receiving channel and the sound outlet hole position.

[0011] In a possible design of the first aspect, the housing includes a front housing and a rear housing, the front housing is arranged on the rear housing, and the front housing and the rear housing together surround and form the internal space, the bracket and the speaker are arranged on the front housing, the speaker and the bracket divide the internal space into a front cavity and a rear cavity, the front cavity is located between the speaker and the bracket, the rear cavity is located between the speaker and the rear housing, the noise reduction microphone is located in the front cavity, the connecting hole is arranged on the front housing, the connecting hole connects the front cavity with the external environment, and the dustproof net and the appearance net are arranged between the front housing and the bracket. The design of the front and rear housings is conducive to the installation of the bracket, the speaker, etc., and is convenient for production and processing.

[0012] In a possible design of the first aspect, the bracket is provided with a mounting surface near the sound outlet, the sound receiving hole is formed on the mounting surface and is close to the connecting surface, the noise reduction microphone is provided on the mounting surface via a connecting member, and the sound receiving hole is connected to the sound receiving end of the noise reduction microphone. The design of the mounting surface close to the sound outlet is conducive to achieving the maximum proximity of the noise reduction microphone to the connecting surface, which is more conducive to receiving noise in the ear canal.

[0013] In a possible design of the first aspect, the earphone further comprises a sealing member, the sealing member being used to seal the shell and the bracket at the communicating hole and the communicating surface. The design of the sealing member is conducive to dust prevention and preventing sound waves from propagating through the gap.

[0014] A possible design of the first aspect is that the seal includes a first seal, a second seal and a third seal, the first seal is arranged between the dustproof net and the connecting surface to seal the dustproof net on the connecting surface, the second seal is arranged between the outer shell and the appearance net to arrange the appearance net on the outer shell and seal the connecting hole, and the third seal is arranged between the dustproof net and the appearance net to seal the dustproof net and the appearance net.

[0015] In a possible design of the first aspect, the first sealing member and the third sealing member are both provided with openings at positions relative to the sound outlet and the sound receiving port, so that the sound outlet and the sound receiving port at the communicating hole are separated between the housing and the bracket, so that the sound emitted from the speaker through the sound outlet has the least effect on the noise reduction microphone in the sound receiving port, so that the noise reduction microphone can receive as much noise in the ear canal as possible.

[0016] In a possible design of the first aspect, the first sealing member, the second sealing member and the third sealing member are double-sided tape or glue, thereby saving costs and improving installation efficiency.

[0017] In a possible design of the first aspect, the sound receiving port and the sound outlet are isolated from each other, and the sound receiving channel and the front cavity are isolated from each other by the bracket, so as to minimize the influence of the speaker on the sound pickup of the noise reduction microphone.

[0018] In a possible design of the first aspect, the rear shell includes an earphone front end and an earphone rear end, the earphone front end is used to install the speaker and set the front shell, and the earphone rear end is used for handholding. The earphone rear end is convenient for the user to hold the earphone so as to wear the earphone on the user's ear.

[0019] In a possible design of the first aspect, the rear cavity is provided with a circuit board, a battery module, a power input unit, a communication unit or a call microphone.

[0020] In a possible design of the first aspect, the exterior mesh is a metal mesh, which increases the fashion sense and mechanical reliability of the earphone and prevents the inner dust screen, speaker, noise reduction microphone, etc. from being damaged by external forces.

[0021] In a possible design of the first aspect, the acoustic resistance of the exterior mesh is less than or equal to 10 Rayls MKS.

[0022] In a possible design of the first aspect, the sound receiving port is located on a side of the connecting surface away from the speaker, so as to reduce the influence of the speaker on the sound pickup of the noise reduction microphone.

[0023] In a possible design of the first aspect, the earphone is further provided with an active noise reduction microphone, which can further improve the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an earphone provided in the first embodiment of the present application.

[0025] Figure 2 yes Figure 1 A partially exploded perspective view of the headphones shown.

[0026] Figure 3 yes Figure 2 A three-dimensional schematic diagram of a bracket for the earphones shown.

[0027] Figure 4 yes Figure 1 A cross-sectional view of the earphone shown.

[0028] Figure 5 It is a cross-sectional view of an earphone provided in the second embodiment of the present application.

[0029] Figure 6 It is a cross-sectional view of an earphone provided in the third embodiment of the present application.

[0030] Figure 7 This is a cross-sectional view of an earphone provided in the fourth embodiment of the present application.

[0031] Main component symbols

[0032] Headphones 100, 200, 300

[0033] Housing 10

[0034] Housing 11

[0035] Front shell 111

[0036] Back shell 112

[0037] Headphone front end 1121

[0038] Headphone rear end 1122

[0039] Bracket 12

[0040] Connecting surface 121

[0041] Sound hole 122

[0042] Radio channel 123

[0043] Sound port 124

[0044] Sound receiving hole 125

[0045] Mounting surface 126

[0046] Internal Space 13

[0047] Front cavity 131

[0048] Back cavity 132

[0049] Communication hole 14

[0050] Speaker 20

[0051] Noise-canceling microphone 30

[0052] Connector 31

[0053] Dust screen 40

[0054] Appearance Network 50

[0055] Seal 60

[0056] First sealing member 61

[0057] Second sealing member 62

[0058] The third seal 63

[0059] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0061] Hereinafter, if used, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more. Positional terms such as "upper", "lower", "left", and "right" are defined relative to the orientation of the components schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts. They are used for description and clarification relative to the components, and may change accordingly according to changes in the orientation of the components placed in the accompanying drawings.

[0062] In this application, if used, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0063] When the following embodiments are described in detail in conjunction with schematic diagrams, for ease of explanation, the diagrams showing the local structures of the devices will not be partially enlarged according to the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of this application.

[0064] Embodiment 1

[0065] like Figure 1 and Figure 2 As shown, an earphone 100 provided in the first embodiment of the present application is shown. The earphone 100 can perform active noise reduction to cancel out the noise in the ear canal, thereby improving the sound effect and sound quality of the earphone 100. The earphone 100 can be an in-ear earphone, a semi-in-ear earphone, a headphone, etc., and particularly relates to a semi-in-ear earphone.

[0066] The earphone 100 includes a housing 10, a speaker 20, a noise reduction microphone 30, a dust screen 40, and an exterior screen 50. The housing 10 is provided with an internal space 13 communicating with the outside. The speaker 20 and the noise reduction microphone 30 are provided in the internal space 13 of the housing 10 (see FIG. Figure 4 The dustproof net 40 and the appearance net 50 are disposed on the housing 10 and are located where the internal space 13 is connected to the outside, so that the internal space 13 is connected to the outside through the dustproof net 40 and the appearance net 50.

[0067] The housing 10 includes an outer shell 11 and a bracket 12. The outer shell 11 is provided with the inner space 13 and a connecting hole 14. The connecting hole 14 is used to connect the inner space 13 with the external environment, and when the earphone 100 is worn on a human ear, the connecting hole 14 points to the ear canal of the human body. The bracket 12 is arranged in the inner space 13 of the outer shell 11 and is arranged close to the connecting hole 14. The noise reduction microphone 30 is arranged on the bracket 12. The dustproof net 40 and the appearance net 50 are located between the outer shell 11 and the bracket 12, and cover the connecting hole 14.

[0068] Specifically, the housing 11 includes a front housing 111 and a rear housing 112. The front housing 111 is disposed on the rear housing 112, and the front housing 111 and the rear housing 112 together surround and form the internal space 13. The bracket 12 is disposed on the front housing 111. The speaker 20 is disposed on the front housing 111. The speaker 20 and the bracket 12 separate the internal 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 housing 112. The noise reduction microphone 30 is located in the front cavity 131. The communication hole 14 is disposed on the front housing 111. The communication hole 14 connects the front cavity 131 with the external environment. The dustproof net 40 and the appearance net 50 are disposed between the front housing 111 and the bracket 12, and cover the communication hole 14.

[0069] Please also see Figure 3 and Figure 4 , the bracket 12 is roughly matched with the inner wall of the front shell 111. The bracket 12 is provided with a connecting surface 121 facing the connecting hole 14. A sound outlet hole 122 is provided on the connecting surface 121. The sound outlet hole 122 connects the front cavity 131 and the connecting hole 14. The bracket 12 is also provided with a sound receiving channel 123. The sound receiving channel 123 is formed with a sound receiving port 124 on the connecting surface 121, and the sound receiving channel 123 is also formed with a sound receiving hole 125 at another position of the bracket 12. The noise reduction microphone 30 is arranged on the bracket 12 and covers the sound receiving hole 125. On the connecting surface 121, the sound receiving port 124 and the sound outlet hole 122 are isolated from each other, and the sound receiving channel 123 and the front cavity 131 are isolated from each other (not connected) by the bracket 12, so as to minimize the influence of the speaker 20 on the sound pickup of the noise reduction microphone 30.

[0070] In this embodiment, the sound receiving port 124 is located on the side of the connecting surface 121 away from the speaker 20. There are two sound outlet holes 122, which are symmetrically arranged on the connecting surface 121, and the sound receiving port 124 is located between the two sound outlet holes 122. However, it is not limited thereto, and in other embodiments, there may be one or more sound outlet holes 122.

[0071] The speaker 20 is used to emit sound into the front cavity 131 so as to be transmitted to the ear canal through the sound outlet hole 122 and the communication hole 14 .

[0072] The noise reduction microphone 30 is a feedback microphone (Feedback Mic, FB Mic or Error Mic), which is used to receive and pick up the residual noise in the ear canal between the earphone and the human ear after wearing. Through an algorithm (built-in noise reduction microphone 30 or other units in the earphone 100 or an external processing unit), the speaker 20 of the earphone releases reverse sound waves to cancel the noise.

[0073] The inner wall of the bracket 12 is provided with a mounting surface 126 near the sound outlet hole 122. The sound receiving hole 125 is formed on the mounting surface 126 and is close to the connecting surface 121. The noise reduction microphone 30 is provided on the mounting surface 126 through a connecting member 31, and the sound receiving hole 125 is connected with the sound receiving end of the noise reduction microphone 30, so that the noise in the ear canal is transmitted to the noise reduction microphone 30 through the connecting hole 14 and the sound receiving channel 123.

[0074] The connecting member 31 can be an adhesive such as double-sided tape or glue.

[0075] Please also see Figure 4 The dustproof net 40 is disposed on the communication surface 121 and covers the sound outlet 122 and the sound receiving port 124. The exterior net 50 is disposed on the front shell 111 and completely covers the communication hole 14.

[0076] The earphone 100 further includes a sealing member 60 . The sealing member 60 is used to seal the housing 11 and the bracket 12 at the communicating hole 14 and the communicating surface 121 .

[0077] 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 that of the connecting surface 121. The first sealing member 61 is disposed between the dustproof net 40 and the connecting surface 121 to seal the dustproof net 40 on the connecting surface 121. The second sealing member 62 is disposed between the front shell 111 and the appearance net 50 to dispose the appearance net 50 on the front shell 111 and seal the connecting hole 14. The third sealing member 63 is disposed between the dustproof net 40 and the appearance net 50 to seal the dustproof net 40 and the appearance net 50.

[0078] The first sealing member 61 and the third sealing member 63 are both provided with openings at positions corresponding to the sound outlet 122 and the sound receiving port 124, so that the sound outlet 122 and the sound receiving port 124 at the communication hole 14 are separated between the housing 11 and the bracket 12, so that the sound emitted from the speaker 20 from the sound outlet 122 has the least effect 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 generally annular, so that the appearance net 50 is arranged on the wall surface around the communication hole 14 of the front housing 111.

[0079] The first sealing member 61 , the second sealing member 62 and the third sealing member 63 can all be made of adhesives such as double-sided tape and glue.

[0080] 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.

[0081] The exterior mesh 50 is preferably a metal mesh to increase the fashion sense and mechanical reliability of the earphones and prevent the inner dustproof mesh 40, the speaker 20 and the noise reduction microphone 30 from being damaged by external forces, such as preventing sharp objects from piercing.

[0082] The damping of the appearance net 50 should be as small as possible. Preferably, the acoustic impedance of the appearance net 50 is below 10 Rayls MKS (Rayleigh, in the MKS system, 1 Rayleigh is 1 Pascal-second per meter, 1 Rayls = 1 Pa*s / m), so as to ensure that the appearance net 50 has little effect on the sound reception of the noise reduction microphone 30.

[0083] The rear shell 112 includes an earphone front end 1121 and an earphone rear end 1122. The earphone front end 1121 is used to install the speaker 20 and set the front shell 111. The earphone rear end 1122 is convenient for the user to hold the earphone 100 so as to wear the earphone 100 on the user's ear.

[0084] When in use, the user holds the rear end 1122 of the earphone and wears the front end 1121 of the earphone with the front shell 111 on the ear, with the side with the connecting hole 14 facing the ear canal. The noise in the ear canal is received by the noise reduction microphone 30, and the speaker 20 emits a sound with a reverse sound wave, thereby eliminating the noise in the ear canal from the sound heard by the human ear, thereby improving the sound effect and sound quality of the earphone.

[0085] The rear 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 electric energy or a power input unit for connecting to an external power supply unit, a communication unit for transmitting signals with the outside world, a call microphone for receiving sound from the user, etc.

[0086] Furthermore, the earphone 100 may also be provided with an active noise reduction microphone (Feedforward Mic or Ref Mic), a pressure relief hole and other elements and designs used in common earphones to improve the sound quality and wearing comfort.

[0087] The earphone 100 provided in the present application makes the connecting surface 121 face the ear canal, and sets an independent sound receiving channel 123 on the bracket 12, so that the sound receiving port 124 is as close to the ear canal as possible, and the sound receiving port 124 of the sound receiving channel 123 on the connecting surface 121 is separated from the sound outlet 122. At the same time, a dustproof net 40 is added, and the sound receiving port 124 and the sound outlet 122 between the connecting hole 14 and the connecting surface 121 are separated by a sealing member 60, so that the noise reduction microphone 30 receives noise toward the ear canal through the sound receiving port 124, so that the received noise can be as close to the noise in the ear canal as possible, optimize the conditions for noise reduction debugging, achieve a better noise reduction effect, and have a better dustproof effect.

[0088] Embodiment 2

[0089] like Figure 5 As shown, an earphone 200 is provided in the second embodiment of the present application.

[0090] The earphone 200 has the same structure as the earphone 100, including a housing 10, a speaker 20, a noise reduction microphone 30, a dustproof net 40 and an exterior net 50. Figure 1 The main difference of the earphone 100 in the first embodiment is that the structures of the dustproof net 40, the appearance net 50 and the sealing member 60 are different.

[0091] Specifically, the dustproof net 40 only covers the sound outlet 122, but not the sound receiving port 124. The appearance net 50 is convex outward. The third sealing member 63 in the sealing member 60 is generally annular to seal the appearance net 50 with the outer periphery of the dustproof net 40.

[0092] The earphone 200 provided in the present application makes the connecting surface 121 face the ear canal, sets an independent sound receiving channel 123 on the bracket 12, and separates the sound receiving port 124 of the sound receiving channel 123 on the connecting surface 121 from the sound outlet 122, so that the noise reduction microphone 30 receives noise toward the ear canal through the sound receiving port 124, makes the received noise as close as possible to the noise in the ear canal, optimizes the conditions of noise reduction debugging, and achieves a better noise reduction effect.

[0093] Embodiment 3

[0094] like Figure 6 As shown, an earphone 300 is provided in the third embodiment of the present application.

[0095] The earphone 300 has the same structure as the earphone 200, including a housing 10, a speaker 20, a noise reduction microphone 30, a dustproof net 40 and an exterior net 50. Figure 5 The main difference between the earphone 200 in the second embodiment shown is that the structure of the dustproof net 40 is different.

[0096] Specifically, the aperture density of the area of ​​the dustproof net 40 covering the sound outlet 122 is different from the aperture density of the area covering the sound receiving port 124, so that the aperture of the dustproof net 40 at the sound receiving port 124 is larger, thereby making the acoustic resistance of the dustproof net 40 at the sound receiving port 124 lower (less than or equal to 10 MKS Rayls).

[0097] The earphone 300 provided in the present application makes the connecting surface 121 face the ear canal, and 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 connecting surface 121 is separated from the sound outlet 122. At the same time, a dustproof net 40 is added, and the damping of the dustproof net 40 at the sound receiving port 124 is reduced by adjustment, so that the noise reduction microphone 30 receives noise toward the ear canal through the sound receiving port 124, so that the received noise can be as close to the noise in the ear canal as possible, thereby optimizing the conditions for noise reduction debugging and achieving a better noise reduction effect.

[0098] Embodiment 4

[0099] like Figure 7 As shown, an earphone 400 is provided in the fourth embodiment of the present application.

[0100] The earphone 400 has the same structure as the earphone 100, including a housing 10, a speaker 20, a noise reduction microphone 30 and a dustproof net 40. Figure 1 The main difference of the earphone 100 in the second embodiment is that the appearance net 50 is not provided.

[0101] Specifically, the dustproof net 40 can be made of a material with high mechanical strength, so as to play the role of the dustproof net 40 and the appearance net 50 in the earphone 100 at the same time. The sealing member 60 only includes a first sealing member 61 and a second sealing member 62. The first sealing member 61 is arranged between the dustproof net 40 and the connecting surface 121 to seal the dustproof net 40 on the connecting surface 121. The second sealing member 62 is arranged between the front shell 111 and the dustproof net 40 to arrange the dustproof net 40 on the front shell 111 and seal the connecting hole 14.

[0102] The pore density on the dustproof net 40 can also be similar to the earphone 300 described in the third embodiment, and is designed so that the pore size covering the sound outlet 122 is larger than the pore size covering the sound receiving port 124, so that the sound resistance of the dustproof net 40 at the sound receiving port 124 is lower.

[0103] Of course, in other embodiments, there may be multiple dustproof nets 40, which respectively cover the sound outlet 122 and the sound receiving port 124 (which may be arranged on the hole wall or on the surface of the connecting surface 121), and the seal 60 only includes a second seal 62, which is arranged between the front shell 111 and the connecting surface 121 to seal the connecting hole 14 on the front shell 111 through the connecting surface 121.

[0104] The earphone 400 provided in the present application makes the connecting surface 121 face the ear canal, and 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 connecting surface 121 is separated from the sound outlet 122. At the same time, a dustproof net 40 is added, and the damping of the dustproof net 40 at the sound receiving port 124 is reduced by adjustment, so that the noise reduction microphone 30 receives noise toward the ear canal through the sound receiving port 124, so that the received noise can be as close to the noise in the ear canal as possible, thereby optimizing the conditions for noise reduction debugging and achieving a better noise reduction effect.

[0105] The present application also provides a terminal device, which is provided with the earphone 100, 200 or 300.

[0106] The terminal device may be glasses, an AR device, a VR device or other products with audio effects.

[0107] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the disclosure scope of the present application.

Claims

1. A headset, characterized in that: Including housing, speaker, noise reduction microphone, dust screen, appearance screen and seal; The housing comprises an internal space, a connecting surface for connecting the internal space with the external environment, and a sound receiving channel; The noise reduction microphone is connected to the connecting surface through the sound receiving channel; The speaker is disposed in the internal space, the internal space includes a front cavity, and the speaker is connected to the communication surface through the front cavity; The dustproof net is arranged on the connecting surface, and the dustproof net covers the sound outlet and the sound receiving port; The appearance net covers the connecting surface and the dustproof net, the appearance net is a metal net, the acoustic resistance of the appearance net is less than or equal to 10 Rayls MKS, and the shape of the appearance net is an outward convex shape; The sealing member is used to seal the shell and the bracket at the communicating hole and the communicating surface, and the sealing member includes a first sealing member, a second sealing member and a third sealing member, the first sealing member is arranged between the dustproof net and the communicating surface to seal the dustproof net on the communicating surface, the second sealing member is arranged between the shell and the appearance net to arrange the appearance net on the shell and seal the communicating hole, and the third sealing member is arranged between the dustproof net and the appearance net to seal the dustproof net and the appearance net; The first sealing member and the third sealing member are both provided with openings at positions corresponding to the sound outlet and the sound receiving port, so that the sound outlet and the sound receiving port at the connecting hole are separated between the housing and the bracket. Wherein, the shell comprises an outer shell and a bracket, the outer shell is provided with the inner space and the communicating hole, and the bracket is provided with a communicating surface facing the communicating hole; The connecting surface includes a sound outlet and a sound receiving port, the sound outlet and the sound receiving port are isolated from each other, and the sound outlet is connected to the front cavity; The sound receiving channel is arranged on the bracket, the sound receiving port is formed on the connecting surface, the sound receiving channel is formed with a sound receiving hole at a position of the bracket, the sound receiving hole is connected with the sound receiving end of the noise reduction microphone, the sound receiving end of the noise reduction microphone is arranged at a certain angle to the surface where the connecting surface is located, the sound receiving hole is at a certain angle to the sound receiving channel, and a position of the bracket is different from the position of the connecting surface; The sound receiving channel and the front cavity are isolated from each other by the bracket.

2. The headset according to claim 1, characterized in that The noise reduction microphone is arranged on the bracket.

3. The earphone according to claim 1, characterized in that The housing comprises a front housing and a rear housing, and the front housing and the rear housing together surround and form the internal space; The bracket is arranged on the front shell; and / or, The speaker is arranged on the front shell.

4. The earphone according to claim 3, characterized in that The rear shell includes an earphone front end and an earphone rear end, the earphone front end is used to install the speaker and set the front shell, and the earphone rear end is used for handholding.

5. The earphone according to claim 1, characterized in that The internal space includes the front cavity and the rear cavity; The front cavity is located between the speaker and the bracket; The rear cavity is located between the speaker and the rear shell.

6. The earphone according to claim 5, characterized in that The noise reduction microphone is located in the front cavity.

7. The earphone according to claim 5, characterized in that The rear cavity is provided with a circuit board, a battery module, a power input unit, a communication unit or a call microphone.

8. The earphone according to claim 1, wherein: The bracket is arranged in the inner space of the shell and close to the connecting surface.

9. The earphone according to claim 1, wherein: The sound receiving port is located on the connecting surface, and the sound receiving port is located on a side of the sound outlet away from the speaker.

10. The earphone according to claim 12, characterized in that The earphone further comprises a sealing member, which is used for sealing the shell and the bracket at the communicating hole and the communicating surface.

11. The earphone according to claim 1, wherein: The first sealing member, the second sealing member and the third sealing member are double-sided tape or glue.

12. The headset according to any one of claims 1 to 18, characterized in that: The bracket is provided with a mounting surface close to the sound outlet, the sound receiving hole is formed on the mounting surface and close to the connecting surface, and the noise reduction microphone is arranged on the mounting surface through a connecting piece.

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