CN218352679U - Head earphone - Google Patents

Abstract

The application belongs to the technical field of earphones, and particularly relates to a headset which comprises a head band and two headset heads, wherein each headset head comprises a body, a mounting piece and a microphone; the two bodies are respectively connected to two ends of the headband; one end of the mounting piece is fixedly mounted on the body, and the other end of the mounting piece protrudes out of the body and is positioned on the side of the body back to the headband; the microphone is mounted at an end of the mounting member facing away from the body. This headphone's microphone is direct to be passed through installed part and body fixed connection, and the position of microphone is fixed for the body, and the position of microphone is unable to be adjusted promptly, can remove the loaded down with trivial details operation of microphone position control so from, simultaneously, adopts the microphone to adopt the installation form of installed part, its simple structure, also convenient processing preparation.

Description

Head earphone

Technical Field

The application belongs to the technical field of earphones, and particularly relates to a headset.

Background

The headset is an indispensable supporting product of entertainment audio and video equipment by virtue of high-quality sound effect, the current headset comprises a head band and two headset heads, the two headset heads are respectively connected with two ends of the head band, when the headset is worn, the two headset heads are respectively covered on the ears of a user, and meanwhile, a sound production unit is arranged in the headset heads so as to realize the listening function of the headset; however, in order to meet different requirements, a microphone is usually configured on the headset head to implement a call function; however, in the existing headset, the microphone for communication is connected with the headset head through a telescopic structure or a rotating shaft structure, when the communication is needed, the microphone is rotated or pulled to the mouth accessory of a user, and the microphone is reset after the communication is finished, so that a lot of inconvenience exists in the using process.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a headphone, aim at solving the poor technical problem of convenience in the headphone use among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a headset comprising;

a headband;

two headset heads, each of the two headset heads comprising a body, a mounting member and a microphone; the two bodies are respectively connected to two ends of the headband;

one end of the mounting piece is fixedly mounted on the body, and the other end of the mounting piece protrudes out of the body and is positioned on the side of the body back to the headband; the microphone is mounted at an end of the mounting member facing away from the body.

Optionally, the installed part includes segmental arc and straightway that are connected, the segmental arc laminate in the installation of the periphery wall of body, the straightway is followed segmental arc with the tangent line of straightway junction and dorsad the segmental arc extends, the microphone install in the straightway is dorsad the tip of segmental arc.

Optionally, the earphone head further includes an end cover, the end cover is covered on an end portion of the straight line segment, the end portion faces away from the arc-shaped segment, an installation cavity is formed by an inner wall surface of the end cover and an inner wall surface of the straight line segment in a surrounding mode, the microphone is installed in the installation cavity, and the end cover is provided with a sound receiving hole corresponding to the position of the microphone.

Optionally, a sealing sleeve is sleeved outside the microphone, a first annular protrusion is arranged in the end cover, the first annular protrusion is annularly arranged around the acoustic hole, and the sealing sleeve is fixedly embedded in the first annular protrusion.

Optionally, the end cover is provided with a second annular bulge, the second annular bulge is annularly arranged outside the first annular bulge, a first step surface is formed at a joint of the end cover and the second annular bulge, the second annular bulge is fixedly embedded in the linear section, and an end surface of the linear section, which faces away from the arc-shaped section, abuts against the first step surface.

Optionally, the acoustic hole includes a first through hole and a plurality of second through holes, and the second through holes are arranged in an annular array around a circle center of the first through hole.

Optionally, the body includes a housing, and a speaker, a sound-proof enclosure, a circuit board and a sound-emitting grid plate disposed in the housing, an outer edge of the sound-emitting grid plate is connected to an inner wall of the housing, the speaker is mounted on a side surface of the sound-emitting grid plate facing the housing, and the sound-proof enclosure is disposed outside the speaker and connected to the sound-emitting grid plate; the inner wall of the shell, the outer wall of the sound-proof shield and the side surface of the sound-out grid plate facing the shell are surrounded to form a sound-proof cavity; the segmental arc laminate in the periphery wall installation of casing, just the installation cavity with the chamber intercommunication gives sound insulation, the circuit board is located give sound insulation the intracavity and simultaneously with the speaker with microphone electric connection.

Optionally, the casing is provided with a communication hole communicated with the sound insulation cavity, a communication channel communicated with the installation cavity is formed in the arc-shaped section, and the communication hole is communicated with the communication channel.

Optionally, the housing comprises a first sleeve portion, a ring plate portion and a second sleeve portion, wherein the outer peripheral wall of the first sleeve portion is connected with the outer peripheral edge of the ring plate portion, the outer peripheral wall of the second sleeve portion is connected with the inner peripheral edge of the ring plate portion, and the first sleeve portion and the second sleeve portion are respectively located on two opposite sides of the ring plate portion; the communication hole is provided in the annular plate portion; the arc-shaped section is provided with a first connecting column, the first connecting column is located in the communicating channel, a second connecting column is arranged on the annular plate portion, an inserting hole is formed in the end portion of the second connecting column, the end portion of the first connecting column is inserted into the inserting hole, and the first connecting column is connected with the second connecting column through a fastener.

Optionally, the body further comprises a soft ear cover, and the soft ear cover is mounted on the side of the sound outlet grid plate back to the shell.

One or more technical solutions in the headset provided by the present application have at least one of the following technical effects: according to the headset, one end of the mounting piece is fixedly mounted on the body, and the other end of the mounting piece protrudes out of the body and is positioned on the side of the body back to the headband; the microphone is installed in the tip of installation department dorsad casing, so wear the back that targets in place at this headphone, the microphone closes on user's mouth and sets up, open the back at the microphone like this, the sound that the user sent can directly be gathered by the microphone, so just realize headphone's conversation function, compare in with adopting pull structure and rotating-structure to compare, headphone's microphone of this application embodiment directly passes through installed part and body fixed connection, the position of microphone is fixed for the body, the unable adjustment in position of microphone promptly, the loaded down with trivial details operation of microphone position control has so been removed from, simultaneously, adopt the microphone to adopt the installation form of installed part, a structure is simple, also convenient processing preparation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a headphone according to an embodiment of the present application.

Fig. 2 is a schematic view of the structure of the earphone head shown in fig. 1.

Fig. 3 is an exploded view of the earphone head shown in fig. 2.

Fig. 4 is a sectional view of the earphone head shown in fig. 2.

Fig. 5 is a schematic structural view of the housing shown in fig. 3.

Fig. 6 is a schematic view of the mount shown in fig. 3.

Fig. 7 is a schematic structural view of the end cap shown in fig. 3.

Wherein, in the figures, the various reference numbers:

10-headband 20-earphone head 21-mounting piece

22-body 23-microphone 24-end cap

25-sealing sleeve 26-arc connecting piece 27-head belt connecting piece

211-arc section 212-straight section 221-shell

222-speaker 223-sound insulation cover 224-circuit board

225-sound-emitting grid plate 226-sound-insulating cavity 227-soft ear cap

228-sealing ring 241-sound-absorbing hole 242-first annular bulge

243-second annular projection 244-first step surface 2111-communication passage

2112-first connecting post 2113-second step 2211-first sleeve portion

2212-ring plate 2213-second sleeve 2214-second connecting pole

2215, plug-in hole 2216, communication hole 2411 and first through hole

2412-second through hole 2251-third annular projection 2252-fourth annular projection.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in fig. 1-7, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 7, in one embodiment of the present application, a headset is provided, which comprises a headband 10 and two headset heads 20, it can be understood that the headband 10 has a certain elasticity and is designed in a U-shaped structure, the headband 10 is mounted on the head of a user, and can provide a certain elastic force to the two headset heads 20 so as to be clamped at two ends of the head of the user; both headset heads 20 comprise a body 22, a mounting 21 and a microphone 23; the two bodies 22 are respectively connected to two ends of the headband 10; one end of the installation piece 21 is fixedly installed on the body 22, and the other end of the installation piece 21 protrudes out of the body 22 and is positioned on the side of the body 22 back to the headband 10; the microphone 23 is mounted on the end of the mounting piece 21 opposite to the body 22; it will be appreciated that when the headset is in place, the end of the mounting member 21 facing away from the body 22 extends towards the user's mouth to project out of the body 22 to close the user's mouth, improving call quality.

In the headset of the embodiment of the application, one end of the mounting member 21 is fixedly mounted on the body 22, and the other end of the mounting member 21 protrudes out of the body 22 and is located on the side of the body 22 opposite to the headband 10; the microphone 23 is mounted at the end of the mounting part, which is opposite to the casing 221, so that after the headset is worn in place, the microphone 23 is arranged close to the mouth of the user, and thus after the microphone 23 is turned on, the sound emitted by the user can be directly collected by the microphone 23, so that the conversation function of the headset is realized. The distance that the mounting member 21 protrudes out of the body 22 can be selected according to actual needs, and is not limited herein, and preferably, the distance that the mounting member 21 protrudes out of the body 22 is shorter, so that damage to external components is reduced, the overall dimension of the whole headset can be reduced, and the headset is more convenient for a user to wear.

In another embodiment of the present application, as shown in fig. 1 and 2, the headset mounting member 21 includes an arc section 211 and a straight section 212 connected, the arc section 211 is mounted to fit against the outer peripheral wall of the body 22, the straight section 212 extends along a tangent line of the connection between the arc section 211 and the straight section 212 and faces away from the arc section 211, and the microphone 23 is mounted at an end of the straight section 212 facing away from the arc section 211. Specifically, the arc-shaped section 211 is attached to the outer circumferential wall of the body 22, so that the connection reliability of the mounting part 21 and the body 22 is better, the mounting and fixing effect of the microphone 23 is better, and the use reliability is good; in addition, the structural form of the arc-shaped section 211 and the straight-line section 212 is adopted, the mounting part 21 is regular in structure, and manufacturing and processing are facilitated.

In another embodiment of the present application, as shown in fig. 3, 6 and 7, the earphone head 20 of the provided headphone further includes an end cap 24, the end cap 24 is disposed on an end portion of the straight line segment 212 facing away from the arc-shaped segment 211, an inner wall surface of the end cap 24 and an inner wall surface of the straight line segment 212 enclose to form a mounting cavity, the microphone 23 is mounted in the mounting cavity, and the end cap 24 is provided with a sound receiving hole 241 corresponding to a position of the microphone 23. After the headset of the embodiment of the application is worn in place, the end cover 24 is arranged close to the user, so that after the microphone 23 is turned on, the sound emitted by the user can be transmitted into the microphone 23 through the sound receiving hole 241, and the communication function of the headset is further realized; the end cover 24 and the straight line segment 212 enclose a mounting cavity, the mounting cavity provides a mounting space for the microphone 23, the microphone 23 can be protected, the microphone 23 can be safely and stably operated, and the service life of the headset is prolonged.

In a specific embodiment, the sound receiving hole 241 is disposed on the end surface of the end cap 24 opposite to the mounting member 21, so that when the headset is worn in place, the sound receiving hole 241 is closer to the mouth of the user, the sound receiving effect of the microphone 23 is better, and the communication quality can be ensured.

In another embodiment of the present application, as shown in fig. 3, 6 and 7, a first annular protrusion 242 is provided in the end cap 24 of the headset, and the first annular protrusion 242 is disposed around the sound receiving hole 241; the microphone 23 is sleeved with a sealing sleeve 25, and the sealing sleeve 25 is embedded and fixed in the first annular protrusion 242. Specifically, after the body shadow of the user enters the cavity surrounded by the first annular protrusion 242 through the sound collecting hole 241, because the sealing sleeve 25 sleeved outside the microphone 23 is embedded in the first annular protrusion 242, and the sealing sleeve 25 is filled in the space between the microphone 23 and the first annular protrusion 242, the sound leakage is reduced, the sound collecting effect of the microphone 23 is improved, and the headset has a better communication effect; the shape of the first annular protrusion 242 may be a closed annular structure of a circle, an ellipse, a polygon or other shapes, which is not limited herein, so that the shape of the first annular protrusion 242, the shape of the sealing sleeve 25 and the shape of the microphone 23 are adapted, and it is only required to ensure that the sealing sleeve 25 has a good sealing effect.

In another embodiment of the present application, as shown in fig. 3, 6 and 7, the end cap 24 of the headphone is provided with a second annular protrusion 243, the second annular protrusion 243 is annularly arranged outside the first annular protrusion 242, a first step surface 244 is formed at a connection position of the end cap 24 and the second annular protrusion 243, the second annular protrusion 243 is embedded in the straight section 212, and an end surface of the straight section 212, which faces away from the arc-shaped section 211, abuts against the first step surface 244. During assembly, the second annular protrusion 243 is inserted into the straight section 212, and when the end surface of the straight section 212 abuts against the first step surface 244, it can indicate that the end cap 24 and the microphone 23 are installed in place, so that the end cap 24 and the mounting member 21 are stably and reliably assembled, and the assembly operation speed is increased. The shape of the first annular protrusion 242 may be circular, oval, polygonal, or other shapes, further, the shape of the first annular protrusion 242 is the same as the cross-sectional shape of the straight line segment 212 to ensure that the end cap 24 can be stably and reliably fixed in the straight line segment 212, further, the shape of the first annular protrusion 242 is irregular, such as polygonal, so that the end cap 24 cannot rotate after being inserted into the straight line segment 212 to achieve radial positioning, and preferably, the first annular protrusion 242 is triangular.

In another embodiment, the inner wall surface of the straight-line section 212 is also formed with a second step surface 2113, and after the second annular bulge 243 is inserted into the straight-line section 212, the end surface of the second annular bulge 243 abuts against the second step surface 2113, so that the connection between the end cap 24 and the straight-line section 212 is more stable and reliable.

In another embodiment of the present application, as shown in fig. 3, 6 and 7, the sound receiving hole 241 of the headphone includes a first through hole 2411 and a plurality of second through holes 2412, and the second through holes 2412 are arranged in a circular array around a center of the first through hole 2411. Specifically, the sound receiving hole 241 is formed by enclosing the first through hole 2411 and the second through hole 2412, so that the microphone 23 has a better sound receiving effect and higher communication quality.

In another embodiment of the present application, as shown in fig. 3, 4 and 5, the body 22 of the headphone is provided, which includes a casing 221, and a speaker 222, a sound-proof cover 223, a circuit board 224 and a sound-emitting baffle 225 disposed in the casing 221, wherein an outer edge of the sound-emitting baffle 225 is connected to an inner wall of the casing 221, the speaker 222 is mounted on a side of the sound-emitting baffle 225 facing the casing 221, and the sound-proof cover 223 is disposed outside the speaker 222 and connected to the sound-emitting baffle 225; the inner wall of the shell 221, the outer wall of the sound-proof cover 223 and the side surface of the sound-proof grid plate 225 facing the shell 221 are surrounded to form a sound-proof cavity 226; the arc-shaped section 211 is attached to the outer peripheral wall of the casing 221, the mounting cavity is communicated with the sound insulation cavity 226, and the circuit board 224 is located in the sound insulation cavity 226 and is electrically connected with the speaker 222 and the microphone 23. Specifically, when the headset is worn in place, the sound-emitting grating 225 faces the ear of the user, and the sound emitted by the speaker 222 can enter the ear of the user through the hollow-out area on the sound-emitting grating 225, so that the function of listening to the sound by the headset is realized, and meanwhile, the sound emitted by the speaker 222 cannot be transmitted into the mounting cavity from the sound-insulating cavity 226 due to the blocking of the sound-insulating cover 223, so that the communication quality of the microphone 23 can be further improved; it should be noted that the circuit board 224 is a commercially available earphone control circuit board 224, and the principle and structure of circuit connection between the speaker 222 and the microphone 23 and the circuit board 224 are also commercially available technologies, and the principle and structure of connection between the speaker 222 and the microphone 23 and the circuit board 224 are not described herein again.

In a specific embodiment, as shown in fig. 3, 4 and 5, the side of the sound-emitting grill 225 facing the casing 221 is provided with a third annular protrusion 2251 and a fourth annular protrusion 2252, the third annular protrusion 2251 surrounds the hollow area of the grill, the fourth annular protrusion 2252 surrounds the third annular protrusion 2251, the speaker 222 is mounted in the third annular protrusion 2251, and the outer peripheral wall of the shield is connected to the end of the fourth annular protrusion 2252 by a seam allowance structure to increase the sound insulation effect.

In another embodiment of the present application, as shown in fig. 3, 4 and 5, the housing 221 of the headphone is provided with a communication hole 2216 communicating with the sound insulation chamber 226, a communication channel 2111 communicating with the installation chamber is formed in the arc-shaped section 211, and the communication hole 2216 communicates with the communication channel 2111. On one hand, the communication hole 2216 and the communication passage 2111 can communicate the isolation chamber with the mounting chamber; on the other hand, the communication hole 2216 and the communication passage 2111 allow a line between the circuit board 224 and the microphone 23 to be pierced for easy wiring, so that the line can be prevented from being exposed to the outside.

In another embodiment of the present application, as shown in fig. 3, 4 and 5, the housing 221 of the headset is provided to include a first sleeve portion 2211, a ring plate portion 2212 and a second sleeve portion 2213, the outer circumferential wall of the first sleeve portion 2211 is connected to the outer circumferential edge of the ring plate portion 2212, the outer circumferential wall of the second sleeve portion 2213 is connected to the inner circumferential edge of the ring plate portion 2212, and the first sleeve portion 2211 and the second sleeve portion 2213 are respectively located at two opposite sides of the ring plate portion 2212; the communication hole 2216 is provided in the annular plate portion 2212; the arc-shaped section 211 is provided with a first connecting post 2112, the first connecting post 2112 is located in the communicating channel 2111, a second connecting post 2214 is arranged on the ring plate portion 2212, the end portion of the second connecting post 2214 is provided with a plug-in hole 2215, the end portion of the first connecting post 2112 is plugged in the plug-in hole 2215, and the first connecting post 2112 is connected with the second connecting post 2214 through a fastener. Specifically, during assembly, after the end of the first connection post 2112 on the arc-shaped segment 211 is inserted into the insertion hole 2215 on the second connection post 2214, the arc-shaped segment 211 and the shell 221 can be preliminarily positioned, so that the subsequent fastener can accurately and reliably lock and fix the first connection post 2112 and the second connection post 2214, and the assembly operation of the headset is simple and rapid. In addition, after the arc-shaped section 211 is installed on the ring plate 2212, the inner wall of the arc-shaped section 211 is attached to the second sleeve portion 2213, so that in practical application, the size of the arc-shaped section 211 can be reasonably designed, the size difference between the outer diameter of the first sleeve portion 2211 and the outer diameter of the second sleeve portion 2213 is fully utilized, and the arc-shaped section 211 does not protrude out of the first sleeve portion 2211, so that the appearance of the whole headset is more attractive, and the use is more comfortable. Wherein, the fastener can be a screw, a screw or a bolt.

In a specific embodiment, the sound outlet grid 225 is connected to the ring plate portion 2212 through a fastener, and a sealing ring 228 is clamped and fixed between the outer periphery of the sound outlet grid 225 and the end of the first sleeve portion 2211 opposite to the ring plate portion 2212, so as to improve the sealing performance of the sound insulating cavity 226 and improve the sound insulating effect; the circuit board 224 is located between the sound outlet grid plate 225 and the ring plate 2212, fixed on the ring plate 2212 through a fastener and extends along the circumferential direction of the fourth annular protrusion 2252, so that the internal space of the shell 221 is fully utilized, and the structure is compact; wherein, the fastener can be a screw, a screw or a bolt.

In another embodiment, as shown in fig. 3, 4 and 5, the body 22 of the headset further includes a soft ear cap 227, and the soft ear cap 227 is mounted on the side of the sound grid 225 facing away from the shell 221. Specifically, after the headphone is worn in place, the soft ear cap 227 covers the ear of the user, and meanwhile, the ear of the user is separated from the sound outlet grid plate 225 by the soft ear cap 227, so that the wearing comfort of the headphone is improved. The soft ear cap 227 may be an ear cap filled with soft materials such as cotton and sponge, or an ear cap made of soft materials such as silica gel.

In a specific embodiment, as shown in fig. 1 and fig. 2, the headset further includes an arc-shaped connecting element 26 and a headband connecting element 27 connected to an end of the headband 10, wherein one end of the arc-shaped connecting element 26 is pivotally connected to the second sleeve body 2213, so that the headset head 20 can be vertically turned over relative to the headband 10, so as to ensure that the soft earmuffs 227 can be closely attached to ears of users when the users wear the headset on different users, and further ensure that the headset has good sound effect and good wearing comfort; in addition, the other end of the arc-shaped connecting piece 26 is pivotally connected to the headband connecting piece 27, so that the headset head 20 can be horizontally turned over relative to the headband 10, thereby facilitating the storage of the headset.

The present application is intended to cover various modifications, equivalent arrangements, and adaptations of the present application without departing from the spirit and scope of the present application.

Claims (10)

1. A headset, characterized in that: comprises the following steps of;

a headband;

two headset heads, each of the two headset heads comprising a body, a mounting member and a microphone; the two bodies are respectively connected to two ends of the headband;

one end of the mounting piece is fixedly mounted on the body, and the other end of the mounting piece protrudes out of the body and is positioned on the side of the body back to the headband; the microphone is mounted at an end of the mounting member facing away from the body.

2. The headphone of claim 1, wherein: the installed part is including segmental arc and the straightway that is connected, the segmental arc laminate in the periphery wall installation of body, the straightway is followed the segmental arc with the tangent line of straightway junction and dorsad the segmental arc extends, the microphone install in the straightway dorsad the tip of segmental arc.

3. The headset of claim 2, wherein: the earphone head further comprises an end cover, the end cover is arranged at the end portion, back to the arc-shaped section, of the straight-line section, an installation cavity is formed by the inner wall surface of the end cover and the inner wall surface of the straight-line section in a surrounding mode, the microphone is installed in the installation cavity, and the end cover is provided with a sound receiving hole corresponding to the position of the microphone.

4. A headphone as claimed in claim 3, wherein: the microphone is sleeved with a sealing sleeve, a first annular protrusion is arranged in the end cover, the first annular protrusion is annularly arranged around the sound receiving hole, and the sealing sleeve is fixedly embedded in the first annular protrusion.

5. The headphone of claim 4, wherein: the end cover is provided with a second annular bulge which is annularly arranged outside the first annular bulge, a first step surface is formed at the joint of the end cover and the second annular bulge, the second annular bulge is embedded and fixed in the straight-line section, and the end surface of the straight-line section, which is back to the arc-shaped section, abuts against the first step surface.

6. A headphone according to claim 3, wherein: the sound receiving hole comprises a first through hole and a plurality of second through holes, and the second through holes are arranged in an annular array by taking the circle center of the first through hole as the center.

7. A headphone as claimed in claim 3, wherein: the body comprises a shell, a loudspeaker, a sound-proof shield, a circuit board and a sound-emitting grid plate, wherein the loudspeaker, the sound-proof shield, the circuit board and the sound-emitting grid plate are arranged in the shell; the inner wall of the shell, the outer wall of the sound-proof shield and the side surface of the sound-out grid plate facing the shell are surrounded to form a sound-proof cavity; the segmental arc laminate in the periphery wall installation of casing, just the installation cavity with the chamber intercommunication gives sound insulation, the circuit board is located give sound insulation the intracavity and simultaneously with the speaker with microphone electric connection.

8. The headset of claim 7, wherein: the shell is provided with a communicating hole communicated with the sound insulation cavity, a communicating channel communicated with the installation cavity is formed in the arc-shaped section, and the communicating hole is communicated with the communicating channel.

9. The headset of claim 8, wherein: the shell comprises a first sleeve body part, a ring plate part and a second sleeve body part, wherein the outer peripheral wall of the first sleeve body part is connected with the outer peripheral edge of the ring plate part, the outer peripheral wall of the second sleeve body part is connected with the inner peripheral edge of the ring plate part, and the first sleeve body part and the second sleeve body part are respectively positioned at two opposite sides of the ring plate part; the communication hole is provided in the annular plate portion; the arc-shaped section is provided with a first connecting column, the first connecting column is located in the communicating channel, a second connecting column is arranged on the annular plate portion, an inserting hole is formed in the end portion of the second connecting column, the end portion of the first connecting column is inserted into the inserting hole, and the first connecting column is connected with the second connecting column through a fastener.

10. The headset of claim 7, wherein: the body still includes soft earmuff, soft earmuff install in go out sound grid tray back of the body the side of casing.

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