CN220325799U - Sounding module and earphone - Google Patents

Abstract

The utility model belongs to the technical field of earphones, and particularly relates to a sound generating module and an earphone, which are applied to the earphone; comprises a loudspeaker shell and a sounding component; the loudspeaker shell is used for being connected with the front end of the earphone shell of the earphone and used as a sound outlet shell of the earphone shell; the loudspeaker comprises a loudspeaker shell, a sound generating assembly and a sound output pipe, wherein a cavity is arranged in the loudspeaker shell, the sound generating assembly is arranged in the cavity, and the front end of the loudspeaker shell is also provided with the sound output pipe communicated with the cavity; the sounding component is arranged in the cavity of the loudspeaker shell to form a sounding module, the sounding module is arranged at the front end of the earphone shell, and the loudspeaker shell is used as the sounding shell of the earphone shell, so that the structure is simple. The sounding module can be applied to earphone shells with different shapes, and has high applicability. The loudspeaker shell can effectively reduce electromagnetic interference generated between the sounding component and the control circuit board and the battery, and improves the tone quality of the sounding component. The sound that sound production subassembly vibrations produced is concentrated in the cavity and is spread along play sound pipe, and tone quality is better and more be convenient for assemble production.

Description

Sounding module and earphone

Technical Field

The utility model belongs to the technical field of headphones, and particularly relates to a sounding module.

Background

The headphones are a pair of conversion units that receive electrical signals from the media player or receiver and convert them into audible sound waves using a speaker proximate the ear. The earphone can be separated from the media player, and can independently listen to the sound without affecting other people; can also isolate the sound of the surrounding environment, and is helpful for people in the noisy environment, such as recording studio, bar, trip, sports, etc.

Bluetooth headsets typically include a headset housing, a sound unit, a control circuit board, and a battery; the sounding unit, the control circuit board and the battery are all arranged in the earphone shell, so that the inner space of the earphone shell is occupied greatly, and the earphone shell is crowded in structure. Because the space in the earphone shell is effective, the sound generating unit is close to the control circuit board and the battery, and electromagnetic interference is easy to generate between the sound generating unit and the control circuit board and between the sound generating unit and the battery during operation, and the tone quality of the sound generating unit is influenced. In addition, for the earphone with multiple sound units, the multiple sound units are respectively and independently arranged at all positions inside the shell, so that the earphone is complex to assemble and is not beneficial to production and processing.

Disclosure of Invention

The utility model aims to provide a sounding module and aims to solve one of the technical problems in the prior art.

In order to achieve the above object, the embodiment of the present utility model provides a sound module, which is applied to an earphone; comprises a loudspeaker shell and a sounding component; the loudspeaker shell is used for being connected with the front end of the earphone shell of the earphone and used as a sound outlet shell of the earphone shell; the loudspeaker is characterized in that a cavity is arranged in the loudspeaker shell, the sounding component is arranged in the cavity, and the front end of the loudspeaker shell is also provided with a sound outlet pipe communicated with the cavity.

Optionally, the cavity extends to the rear end of the loudspeaker shell to form a mounting opening, and the mounting opening is matched with the cover and is matched with a fixed cover.

Optionally, the cavity and the inner cavity of the earphone shell are separately arranged.

Optionally, a speaker mounting seat is disposed in the cavity, and the sounding component is disposed on the speaker mounting seat.

Optionally, the sound generating assembly includes a first sound generating unit; the first sound generating unit is arranged on the loudspeaker mounting seat and extends into the sound outlet channel of the sound outlet pipe, and the sound outlet end of the first sound generating unit is close to and faces the sound outlet of the sound outlet pipe.

Optionally, the speaker mounting seat is provided with at least one connecting channel in a penetrating manner, and the connecting channel is communicated with the sound outlet channel of the sound outlet pipe to form a sound transmission channel; the sound generating assembly comprises a second sound generating unit; the second sound generating unit is installed in the loudspeaker mounting seat, and the sound outlet side of the second sound generating unit is communicated with the communication channel.

Optionally, the speaker mounting seat is provided with at least one connecting channel in a penetrating manner, and the connecting channel is communicated with the sound outlet channel of the sound outlet pipe to form a sound transmission channel; the sound generating assembly comprises a third sound generating unit; the third sound generating unit is arranged on the loudspeaker mounting seat, and the sound outlet side of the third sound generating unit is communicated with the communication channel.

Optionally, a front cavity noise reduction microphone is further arranged in the cavity.

Optionally, the loudspeaker shell wears to be equipped with and connects electric installation, connect electric installation's one end with sounding subassembly electricity is connected, connect electric installation's the other end to be the electric end that connects.

An earphone with the sounding module comprises an earphone shell; the front end of the earphone shell is provided with a mounting hole, and the rear end of the loudspeaker shell is fixedly arranged in the mounting hole.

Compared with the prior art, the one or more technical schemes in the sounding module provided by the embodiment of the utility model have at least one of the following technical effects:

1. the sounding component is arranged in the cavity of the loudspeaker shell to form a sounding module, the sounding module is arranged at the front end of the earphone shell, the loudspeaker shell is used as the sounding shell of the earphone shell, and the loudspeaker shell is simple in structure and convenient to assemble and produce.

2. The loudspeaker shell is positioned at the front end of the earphone shell, the sounding component is arranged in the cavity of the loudspeaker shell, the inner cavity space of the earphone shell cannot be occupied, and the structure is compact.

3. Separate sound production subassembly and the control circuit board and the battery in the earphone shell through loudspeaker shell, loudspeaker shell can effectively reduce the electromagnetic interference who produces between sound production subassembly and control circuit board and the battery, has improved sound quality of sound production subassembly.

4. The cavity is independent chamber, and sound that sound production subassembly vibrations produced concentrates in the cavity and along play sound pipe outgoing, reduces sound loss, and tone quality is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a sound module according to the present utility model.

Fig. 2 is a cut-away view of a sound emitting module of the present utility model.

Fig. 3 is an exploded view of the sound module of the present utility model.

Fig. 4 is a schematic structural diagram of the sounding module applied to the earphone.

Fig. 5 is a cut-away view of a first embodiment of a sound module applied to a headset.

Fig. 6 is a cut-away view of a second embodiment of a sound module applied to a headset.

Wherein, each reference sign in the figure:

10. an earphone; 100. a earphone shell; 101. a mounting hole; 102. an inner cavity; 110. a control circuit board; 120. a battery;

20. a sound producing module; 200. a horn housing; 210. a cavity; 211. a mounting port; 212. a fixed cover; 213. a connecting ring; 220. a sound outlet pipe; 221. a sound outlet; 222. a sound outlet channel; 230. a speaker mounting base; 231. a first mounting groove; 232. a second mounting groove; 233. a connecting channel; 234. a sound transmission channel; 235. a receiving groove; 240. an electrical connection device; 241. an electric terminal; 250. a sound emitting assembly; 260. a moving iron horn; 261. a sound outlet end; 270. a moving coil horn; 271. a mounting frame; 280. an MEMS horn; 290. front cavity noise reduction microphone.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, referring to fig. 1-6, a sound module 20 is provided for use in an earphone 10.

Referring to fig. 1 and 2, the sound emitting module 20 includes a speaker housing 200 and a sound emitting assembly 250. Referring to fig. 4 and 5, the speaker housing 200 is used to be connected to the front end of the earphone housing 100 of the earphone 10 and to serve as an outlet housing of the earphone housing 100.

Referring to fig. 1 and 2, a cavity 210 is provided in the speaker housing 200, the sound generating assembly 250 is provided in the cavity 210, and a sound outlet pipe 220 communicating with the cavity 210 is further provided at the front end of the speaker housing 200. In use, sound generated by vibration of the sound emitting assembly 250 is transmitted from the sound tube 220 into the user's ear.

Referring to fig. 2 and 5, the sounding assembly 250 is assembled to the cavity 210 of the speaker housing 200 to form a sounding module 20, and then the sounding module 20 is mounted to the front end of the earphone housing 100, and the speaker housing 200 serves as a sounding housing of the earphone housing 100, so that the structure is simple and the assembly production is convenient.

Referring to fig. 2 and 5, the speaker housing 200 is located at the front end of the earphone housing 100, and the sounding assembly 250 is mounted in the cavity 210 of the speaker housing 200, so that the space of the inner cavity 102 of the earphone housing 100 is not occupied, and space is made for mounting the control circuit board 110 and/or the battery 120 in the inner cavity 102 of the earphone housing 100, so that the structure is compact.

Referring to fig. 2 and 5, the speaker housing 200 is positioned at the front end of the earphone housing 100, and the sounding assembly 250 is positioned in the speaker housing 200, so that the distance between the sounding assembly 250 and the control circuit board 110 is increased, electromagnetic interference generated between the sounding assembly 250 and the control circuit board 110 is reduced, and the sound quality of the sounding assembly 250 is improved.

In another embodiment of the present utility model, referring to fig. 5, the cavity 210 is separately disposed from the inner cavity 102 of the earphone shell 100, and the sound generating assembly 250 is separated from the control circuit board 110 and the battery 120 in the earphone shell 100 by the speaker housing 200, so that the speaker housing 200 can effectively reduce electromagnetic interference generated between the sound generating assembly 250 and the control circuit board 110 and/or the battery 120, and further improve the sound quality of the sound generating assembly 250.

Preferably, referring to fig. 3 and 5, the speaker housing 200 is a shielding case, and the shielding case can effectively shield the control circuit board 110 and/or the battery 120 from electromagnetic interference. The material of the shield case may be aluminum, steel, copper, or the like, and is not limited herein.

In some embodiments, the speaker housing 200 may also be a plastic shell or other material.

Also, referring to fig. 2, the cavity 210 is an independent cavity, and sound generated by vibration of the sound generating component 250 is concentrated in the cavity 210 and is transmitted along the sound output tube 220, so that the sound is reduced from being transmitted into the inner cavity 102 of the earphone shell 100, the sound loss is reduced, and the sound quality is better.

In another embodiment of the present utility model, referring to fig. 2 and 3, the cavity 210 extends to the rear end of the speaker housing 200 to form a mounting opening 211, and the sound generating assembly 250 is conveniently mounted in the cavity 210 from the mounting opening 211 by providing the mounting opening 211.

Further, referring to fig. 3 and 5, the mounting opening 211 is adapted to be covered with a fixing cover 212, so that the cavity 210 forms an independent cavity, and the cavity 210 is separated from the inner cavity 102 of the earphone shell 100.

Further, referring to fig. 2 and 3, a connecting ring 213 extends from one end surface of the fixed cover 212, and the connecting ring 213 is fixedly inserted into the mounting hole 211, so that the fixed cover 212 is fixedly connected to the mounting hole 211 of the speaker housing 200, thereby facilitating assembly.

In another embodiment of the present utility model, referring to fig. 2 and 3, a speaker mounting seat 230 is disposed in the cavity 210, the speaker mounting seat 230 is configured to be matched with the cavity 210, and the speaker mounting seat 230 may be fastened in the cavity 210 by a fastening, bonding, or screwing method. The sound generating assembly 250 is disposed on the speaker mounting base 230, and the sound generating assembly 250 is fixed in the cavity 210 through the speaker mounting base 230.

In another embodiment, referring to fig. 2 and 3, the sound generating assembly 250 includes at least a first sound generating unit 260. The sound generating unit 260 is disposed at the front end of the speaker mounting seat 230 and extends into the sound outlet channel 222 of the sound outlet tube 220, and the sound outlet end 261 of the sound generating unit 260 is close to and faces the sound outlet 221 of the sound outlet tube 220. In use, the sound emitted by the sound emitting unit 260 is directly transmitted into the ears of the user from the sound outlet 221 of the sound outlet pipe 220, so that the sound distortion is small and the sound quality is good.

The first sound generating unit 260 is one of a moving-iron speaker, a moving-coil speaker, a MEMS speaker, or other types of speakers, and the selection of the speakers may be determined according to the actual production requirement or the user requirement, which is not limited herein.

In a specific embodiment, the first sound generating unit 260 is a moving iron speaker, the moving iron speaker is relatively small, and the moving iron speaker is installed in the sound outlet pipe 220, so that the space in the sound outlet pipe 220 is reasonably utilized without increasing the volume of the sound outlet pipe 220, and the structure is compact.

Further, referring to fig. 2 and 3, the front end of the speaker mounting base 230 is provided with a first mounting groove 231, and the rear end of the first sound generating unit 260 is fixedly inserted into the first mounting groove 231, thereby fixedly mounting the first sound generating unit 260 on the speaker mounting base 230. The first sound generating unit 260 may be fixed to the speaker mounting base 230 by means of fastening, bonding, or screwing.

In another embodiment, referring to fig. 2 and 3, the speaker mounting base 230 is provided with at least one communication channel 233 therethrough, and the communication channel 233 communicates with the sound outlet channel 222 of the sound outlet tube 220 to form a sound transmission channel 234. The sound generating assembly 250 includes at least one second sound generating unit 270. The second sound generating unit 270 is mounted at the rear end of the speaker mounting base 230, and the sound emitting side of the second sound generating unit 270 is communicated with the communication channel 233. Sound emitted from the second sound emitting unit 270 is transmitted from the sound outlet 221 into the user's ear along the sound transmission channel 234. The second sound generating unit 270 may be fixed to the speaker mounting base 230 by means of fastening, bonding, or screwing.

The second sound generating unit 270 is one of a moving-iron speaker, a moving-coil speaker, a MEMS speaker, or other types of speakers, and the selection of the speakers may be determined according to the actual production requirement or the user requirement, which is not limited herein.

In a specific embodiment, the second sound generating unit 270 is a moving coil speaker, the moving coil speaker is relatively large, and the moving coil speaker is mounted at the rear end of the speaker mounting seat 230, so that the space of the speaker housing 200 is reasonably utilized, and the design is reasonable.

Further, referring to fig. 2 and 3, a second mounting groove 232 is provided at the rear end of the speaker mounting seat 230, the second mounting groove 232 is in communication with the communication channel 233, and the sound output side of the second sound generating unit 270 is located in the second mounting groove 232, so that the sound generated by the second sound generating unit 270 is transmitted from the sound output port 221 into the ear of the user along the sound transmission channel 234.

In another embodiment, referring to fig. 3, the sound emitting assembly 250 includes a first sound emitting unit 260 and a second sound emitting unit 270. The sound that the first sound generating unit 260 sent directly passes into the user's ear from the sound outlet 221 of sound outlet 220 along transmission direction b, and the sound that the second sound generating unit 270 sent passes into the user's ear from sound outlet 221 along transmission direction a of sound transmission channel 234, and the design like this, the sound wave of first sound generating unit 260 is difficult to interfere the sound wave that the second sound generating unit 270 conducted along sound transmission channel 234, has promoted the tone quality of second sound generating unit 270.

In another embodiment, referring to fig. 2 and 3, the sound generating assembly 250 includes at least one third sound generating unit 280. The third sound generating unit 280 is mounted on the speaker mounting base 230, and the sound outlet side of the third sound generating unit 280 is communicated with the communication channel 233. Sound emitted from the third sound emitting unit 280 is transmitted from the sound outlet 221 into the user's ear along the sound transmission channel 234. The third sound generating unit 280 may be fixed to the speaker mounting base 230 by means of fastening, bonding, or screwing.

The third sound generating unit 280 is one of a moving iron speaker, a moving coil speaker, a MEMS speaker, or other types of speakers, and the selection of the speakers may be determined according to the actual production requirement or the user requirement, which is not limited herein.

In a specific embodiment, the third sound generating unit 280 is a MEMS horn, and the MEMS horn is disposed in the second mounting groove 232, so that the MEMS horn has a smaller volume and a smaller occupied space.

Still further, referring to fig. 2 and 3, the sound emitting side of the second sound emitting unit 270 is provided with a mounting frame 271, and the third sound emitting unit 280 is fixed on the mounting frame 271, so that the second sound emitting unit 270 and the third sound emitting unit are combined into a whole, thereby making reasonable use of space and having a compact structure. The sound outlet side of the third sound unit 280 is close to the communication channel 233, so that the sound emitted by the third sound unit 280 is advantageously transmitted into the user's ear from the sound outlet 221 along the sound transmission channel 234.

In another embodiment, referring to fig. 2 and 3, the sound generating assembly 250 includes a first sound generating unit 260, a second sound generating unit 270, and a third sound generating unit 280. The first sound generating unit 260, the second sound generating unit 270 and the third sound generating unit 280 are respectively a moving iron horn, a moving coil horn and an MEMS horn, and the sound effect of the sound generating module 20 is further improved by forming a plurality of sound generating units by the moving iron horn, the moving coil horn and the MEMS horn.

Referring to fig. 2, 3 and 5, the first sound generating unit 260, the second sound generating unit 270 and the third sound generating unit 280 are assembled together through the speaker mounting seat 230 and then assembled into the sound generating module 20 in the cavity 210 of the speaker housing 200, so that the assembly is convenient and the assembly is not easy to make mistakes compared with the prior art in which a plurality of sound generating units are respectively mounted at various positions inside the earphone housing 100.

In one embodiment of the present utility model, referring to fig. 2 and 3, a front cavity noise reduction microphone 290 is further disposed in the cavity 210, and the front cavity noise reduction microphone 290 is used for picking up external sounds. Further, the speaker mounting base 230 is further provided with a receiving groove 235, and the front cavity noise reduction microphone 290 is disposed in the receiving groove 235.

In one embodiment of the present utility model, referring to fig. 1 and 4, the size of the speaker housing 200 is reduced from the middle to the front end thereof to form a speaker-shaped sound tube 220 with a small front and a large rear, so that the sound tube 220 is beneficial to extend into the ear when the speaker-shaped sound tube is worn.

Further, an earplug (not shown) is detachably sleeved at the front end of the sound outlet tube 220, and the earplug is used for being plugged into the ear.

In one embodiment of the present utility model, referring to fig. 1 and 5, the speaker housing 200 is provided with a power connection device 240, one end of the power connection device 240 is electrically connected to the sound emitting assembly 250 and the front cavity noise reduction microphone 290, and the other end of the power connection device 240 is a power connection end 241, and the power connection end 241 is electrically connected to the control circuit board 110. Specifically, the electrical terminal 241 may be an FPC connector (FPC female connector or FPC male connector), which is convenient for docking with a matched connector on the control circuit board 110, and for connection. For example: when the electrical terminal 241 is an FPC female connector, the connector on the control circuit board 110 is an FPC male connector, and vice versa.

In one embodiment of the present utility model, referring to fig. 5, there is also provided an earphone 10 having the sound emitting module 20 described above. The earphone 10 includes an earphone housing 100. The front end of the earphone shell 100 is provided with a mounting hole 101, and the rear end of the speaker housing 200 is fixedly mounted in the mounting hole 101. The horn housing 200 may be fastened to the mounting hole 101 by means of fastening, bonding, or screwing. For different shapes of earphone cases 100, the sound emitting module 20 can be mounted on different shapes of earphone cases 100 by providing the mounting hole 101 at the front end of the earphone case 100.

Therefore, referring to fig. 1 and 4, the speaker housing 200 is designed as the sound emitting housing of the earphone housing 100, so that the sound emitting module 20 can be applied to earphone housings 100 having different shapes, and has high applicability and extremely high practicality.

Further, referring to fig. 5, when the earphone 10 is a bluetooth earphone, the earphone 10 further includes a control circuit board 110 and a battery 120 disposed in the inner cavity 102 of the earphone housing 100. The power receiving end 241 of the power receiving device 240 and the battery 120 are electrically connected with the control circuit board 110, and the battery 120 supplies power to the control circuit board 110, the sounding assembly 250 and the front cavity noise reduction microphone 290. When the earphone 10 is a wired earphone, the earphone 10 may not be provided with the battery 120, and is connected to an electronic device through an earphone wire, and supplies power to the control circuit board 110, the sound emitting assembly 250, and the front cavity noise reduction microphone 290 through the electronic device.

Fig. 5 is a schematic structural view of the mounting opening 211 of the speaker housing 200 provided with the fixing cover 212, and fig. 6 is a schematic structural view of the mounting opening 211 of the speaker housing 200 not provided with the fixing cover 212.

The rest of the present embodiment is the same as the first embodiment, and the unexplained features in the present embodiment are all explained by the first embodiment, and are not described here again.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. For those skilled in the art, the architecture of the utility model can be flexible and changeable without departing from the concept of the utility model, and serial products can be derived. But a few simple derivatives or substitutions should be construed as falling within the scope of the utility model as defined by the appended claims.

Claims (10)

1. A sound generating module is applied to a headset (10); characterized by comprising a loudspeaker shell (200) and a sound generating component (250); the loudspeaker shell (200) is used for being connected with the front end of the earphone shell (100) of the earphone (10) and used as a sound outlet shell of the earphone shell (100); the loudspeaker is characterized in that a cavity (210) is arranged in the loudspeaker shell (200), the sounding component (250) is arranged in the cavity (210), and the front end of the loudspeaker shell (200) is also provided with a sounding pipe (220) communicated with the cavity (210).

2. The sound emitting module of claim 1, wherein: the cavity (210) extends to the rear end of the loudspeaker shell (200) to form a mounting opening (211), and a fixed cover (212) is matched and covered on the mounting opening (211).

3. The sound emitting module of claim 1, wherein: the cavity (210) and the inner cavity (102) of the earphone shell (100) are arranged in a separated mode.

4. The sound emitting module of claim 1, wherein: a loudspeaker mounting seat (230) is arranged in the cavity (210), and the sounding component (250) is arranged on the loudspeaker mounting seat (230).

5. The sound emitting module of claim 4, wherein: the sound emitting assembly (250) comprises a first sound emitting unit (260); the first sound generating unit (260) is arranged on the loudspeaker mounting seat (230) and stretches into the sound outlet channel (222) of the sound outlet pipe (220), and the sound outlet end (261) of the first sound generating unit (260) is close to and faces the sound outlet (221) of the sound outlet pipe (220).

6. The sound emitting module of claim 4, wherein: the loudspeaker mounting seat (230) is provided with at least one connecting channel (233) in a penetrating manner, and the connecting channel (233) is communicated with the sound outlet channel (222) of the sound outlet pipe (220) to form a sound transmission channel (234); the sound emitting assembly (250) comprises a second sound emitting unit (270); the second sound generating unit (270) is mounted on the loudspeaker mounting seat (230), and the sound outlet side of the second sound generating unit (270) is communicated with the communication channel (233).

7. The sound emitting module of claim 4, wherein: the loudspeaker mounting seat (230) is provided with at least one connecting channel (233) in a penetrating manner, and the connecting channel (233) is communicated with the sound outlet channel (222) of the sound outlet pipe (220) to form a sound transmission channel (234); the sound emitting assembly (250) comprises a third sound emitting unit (280); the third sound generating unit (280) is mounted on the loudspeaker mounting seat (230), and the sound outlet side of the third sound generating unit (280) is communicated with the communication channel (233).

8. The sound emitting module of any one of claims 1-7, wherein: a front cavity noise reduction microphone (290) is also arranged in the cavity (210).

9. The sound emitting module of any one of claims 1-7, wherein: the loudspeaker shell (200) is provided with a power connection device (240) in a penetrating mode, one end of the power connection device (240) is electrically connected with the sounding component (250), and the other end of the power connection device (240) is a power connection end (241).

10. A headset characterized by having a sound emitting module according to any of claims 1-9, comprising a headset housing (100); the front end of the earphone shell (100) is provided with a mounting hole (101), and the rear end of the loudspeaker shell (200) is fixedly mounted in the mounting hole (101).