CN113115163A

CN113115163A - Earphone set

Info

Publication number: CN113115163A
Application number: CN202110455599.8A
Authority: CN
Inventors: 刘明建
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-13

Abstract

The application discloses earphone belongs to electronic equipment technical field, and the earphone includes: the first shell is provided with a first accommodating cavity and a sound generating cavity; the sounding component is arranged in the sounding cavity; one end of the sound guide piece is communicated with the sounding cavity, and a fluid channel is arranged in the sound guide piece; the second shell is sleeved on the sound guide piece and is a flexible shell, an adjustable second accommodating cavity is formed between the second shell and the sound guide piece, and the second shell is used for being worn in the ear of a user; one end of the fluid channel is communicated with the first accommodating cavity, and the other end of the fluid channel is communicated with the second accommodating cavity; the fluid is arranged in the first accommodating cavity, the second accommodating cavity and the fluid channel; and part of the adjusting assembly movably extends into the first accommodating cavity, and the adjusting assembly is used for moving in the first accommodating cavity and driving the fluid to flow so as to adjust the outer contour of the second shell.

Description

Earphone set

Technical Field

The application belongs to the technical field of electronic equipment, concretely relates to earphone.

Background

In the related art, the in-ear headphone has two very critical technical indicators, one is a low frequency response effect, and the other is comfort. In the same case of the earphone, the closer the earphone is to the ear hole, the better the low frequency effect the user subjectively feels, but the closer the earphone is to the ear hole, the worse the comfort of the user becomes. If the matching is looser, the earphone is easy to fall off besides air leakage and poor low-frequency effect. Because the ear structure sizes of different users are different, the subjective feelings of wearing comfort levels are different, and therefore the earphone is designed by using the same set of structure parameters, and the low-frequency response and the comfort levels obtained by different users are inevitably different.

Disclosure of Invention

The application aims at providing the earphone, and the problem that the acoustic effect and the human comfort degree of the earphone are contradictory is at least solved.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides an earphone, include: the first shell is provided with a first accommodating cavity and a sound generating cavity; the sounding component is arranged in the sounding cavity; one end of the sound guide piece is communicated with the sounding cavity, and a fluid channel is arranged in the sound guide piece; the second shell is sleeved on the sound guide piece and is a flexible shell, an adjustable second accommodating cavity is formed between the second shell and the sound guide piece, and the second shell is used for being worn in the ear of a user; one end of the fluid channel is communicated with the first accommodating cavity, and the other end of the fluid channel is communicated with the second accommodating cavity; the fluid is arranged in the first accommodating cavity, the second accommodating cavity and the fluid channel; and part of the adjusting assembly movably extends into the first accommodating cavity, and the adjusting assembly is used for moving in the first accommodating cavity and driving fluid to flow so as to adjust the outer contour of the second shell.

In an embodiment of the present application, a headset includes a first housing, a second housing, a sound emitting assembly, a sound guide, and an adjustment assembly. The sound guide piece is arranged in the second shell, an adjustable second accommodating cavity is formed between the sound guide piece and the second shell, and the second accommodating cavity is filled with fluid. It is understood that the fluid is provided in the second accommodation chamber between the sound guide and the second housing, and also in the first accommodation chamber and the fluid passage, so that the fluid can flow between the first accommodation chamber and the second accommodation chamber through the fluid passage. When the earphone is matched with the ear of a person, the second shell is a flexible shell, and according to the flowable characteristic of fluid, the fluid can be adjusted in the second shell according to the shape and the size of the ear hole and the flow in the first accommodating cavity and the second accommodating cavity, so that the outer contour of the second shell is adjusted, the second shell is attached to the ear hole, the gap between the second shell and the ear hole is reduced, and the phenomenon that the low-frequency effect is poor due to air leakage is correspondingly reduced. Simultaneously, the fluid does not have the hardness, and the second casing is also flexible, consequently can not appear hard material and push up and lead to uncomfortable feelings such as pain on the earhole, has promoted the travelling comfort that uses the earphone to use. In addition, when the ear of the user is larger, namely the ear hole is larger, the fluid can flow from the first accommodating cavity to the second accommodating cavity through the adjustment of the adjusting component, so that the outer contour of the second shell is increased, and the earphone is prevented from being adjusted out of the ear hole. When the ear hole is larger, the fluid can flow from the second accommodating cavity to the first accommodating cavity through the adjustment of the adjusting assembly, so that the outer contour of the second shell is reduced. Thus, even if the same structural parameters are adopted to design the earphone, different users can still obtain the same low-frequency corresponding effect and the same comfort level.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view of a collapsed state of an earphone according to an embodiment of the present application;

fig. 2 is a schematic cross-sectional view of an expanded state of the earphone according to an embodiment of the present application.

Reference numerals: 10: an earphone; 110: a first housing; 112: a first accommodating chamber; 114: a piston; 116: adjusting a rod; 118: a seal member; 120: a second housing; 122: a second accommodating chamber; 130: a sound guide member; 132: a fluid channel; 134: a flow guide pipe; 136: a sound guide hole; 140: a connecting nut; 142: a first connecting pipe fitting; 144: a second connecting pipe fitting; 160: a sound-emitting cavity; 162: a sound producing assembly; 172: the battery comprises a battery body, a first step 200, a second step 202, a third step 210, a fourth step 212, a first limiting part 220 and a second limiting part 222.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

An earphone according to an embodiment of the present application is described below with reference to fig. 1 and 2.

As shown in fig. 1 and 2, an earphone 10 according to some embodiments of the present application includes a first housing 110, a sound emitting assembly 162, a second housing 120, a sound guide 130, a regulating assembly, and a fluid.

As shown in fig. 1, in particular, the first housing 110 has a first accommodation chamber 112 and a sounding chamber 160. The first housing 110 is connected to one end of the second housing 120. The sounding cavity 160 is internally provided with a sounding component 162, and the sounding component 162 is used for vibrating and sounding. The sound guide 130 is hollow and has a fluid passage 132 and a sound guide hole 136. The sound guide 130 has a sound guide hole 136, one end of the sound guide hole 136 is connected to the sound emitting chamber 160, and the other end is connected to the external environment. The second housing 120 is sleeved on the sound guide 130. The second housing 120 is a flexible housing and forms an adjustable second receiving chamber 122 with the sound guide 130. The second housing 120 is adapted to be worn in the ear of the user, i.e. the second housing 120 is adapted to be inserted into the ear. Wherein one end of the fluid passage 132 communicates with the first receiving chamber 112, and the other end communicates with the second receiving chamber 122. Fluid is disposed within first receiving chamber 112, second receiving chamber 122, and fluid passageway 132. The adjusting assembly is used for moving in the first accommodating cavity 112, part of the adjusting assembly movably extends into the first accommodating cavity 112, and the driving fluid flows between the first accommodating cavity 112 and the second accommodating cavity 122 through the fluid passage 132 so as to adjust the outer contour of the second housing 120.

According to the earphone 10 of the embodiment of the present application, the fluid is filled in the adjustable second receiving cavity 122 between the sound guide 130 and the second housing 120, and according to the characteristic that the fluid can flow, when the earphone 10 is fitted to the ear hole of the human ear, the fluid can flow in the second housing 120 according to the shape of the ear hole, so that the second housing 120 is fitted to the ear hole, the gap between the second housing 120 and the ear hole is reduced, and the phenomenon that the low frequency effect is deteriorated due to air leakage is reduced. Meanwhile, the fluid has no hardness, and the second shell 120 is also flexible, so that uncomfortable feelings such as pain caused by the fact that hard materials prop against the earhole cannot occur, and the comfort of using the earphone is improved. In addition, when the ear of the user is large, that is, the ear hole is large, the fluid can flow from the first accommodating chamber 112 to the second accommodating chamber 122 through the adjustment of the adjustment assembly, so as to increase the outer contour of the second housing 120 and prevent the earphone 10 from falling out of the ear hole. When the ear hole is larger, the fluid can flow from the second accommodating chamber 122 to the first accommodating chamber 112 through the adjustment of the adjusting assembly, and the outer contour of the second housing 120 is reduced. Thus, even if the same structural parameters are adopted to design the earphone, different users can still obtain the same low-frequency corresponding effect and the same comfort level.

The fluid can be made of materials which meet the environmental protection requirement and do not generate chemical action with other structural materials. The second housing 120 comprises a material such as silicone, rubber, etc., or a combination thereof.

The first housing 110 is configured to receive other components of the headset 10 and to secure an end of the flexible second housing 120 in a relatively fixed position. The sounding assembly 162 is disposed in the sounding chamber 160 for vibrating sounding. The hollow structure of the sound guide 130 is communicated with the sound emitting cavity 160, so that the sound emitted from the sound emitting component 162 inside the earphone 10 can be guided to the external space through the sound guide hole 136. The sound guide 130 is further provided with a fluid passage 132. Both ends of the fluid passage 132 communicate with the second accommodation chamber 122 and the first accommodation chamber 112, respectively. The fluid channel 132 is disposed on the sound guide 130, and may not occupy other space in the second housing 120, which has an advantage of compact structure.

The first receiving chamber 112 and the second receiving chamber 122 are communicated such that fluid can flow between the first receiving chamber 112 and the second receiving chamber 122. Thus, when the ear hole is small, the earphone is placed in the ear hole, and fluid can flow into the first accommodating cavity 112 under the extrusion of the ear hole, so that the volume of the earphone is reduced; when the ear hole is large, a gap is formed between the earphone and the ear hole, at this time, the fluid can flow into the second accommodating cavity 122 from the first accommodating cavity 112 under the driving of the adjusting assembly, so that the outer contour of the second housing 120 is expanded, and meanwhile, because the fluid and the second housing 120 are flexible, the second housing 120 is expanded under the limitation of the contour of the ear hole, and the gap at each position in the ear hole is gradually filled, so that the earphone is tightly attached to the ear hole. In summary, the flow of the fluid between the first accommodating cavity 112 and the second accommodating cavity 122 enables the earphone to adapt to the shape of the ear hole and also adapt to the ear holes with different sizes, so that the second housing 120 of the earphone can be perfectly attached to the ear hole, and is comfortable and not easy to fall down. And because earphone and earhole can laminate completely, reduce or even eliminated the space between earphone 10 and the earhole, have better leakproofness, reduced gas leakage to can promote the audio of low frequency sound. Of course, if the earphone 10 is tightly fitted to the ear hole and the comfort is not good enough, the volume of the fluid in the second accommodating cavity 122 can be reduced by the adjusting component, so that the in-ear portion of the earphone 10, i.e. the second housing 120, can be retracted to be smaller, and finally the best balance between the tight fit and the comfort can be achieved. Therefore, the embodiment of the application can obtain the same acoustic effect and the user comfort level of different user groups by using the size of one set of earphone 10, the appearance of the earphone 10 is continuously variable, and the tone quality and the wearing comfort level of the earphone 10 are greatly improved.

Further, the adjustment assembly includes a piston 114 and an adjustment rod 116. A piston 114 is movably disposed within the first receiving chamber 112. One end of the adjustment rod 116 is connected to the piston 114, and the other end extends out of the first receiving chamber 112, so that the user can conveniently grip the adjustment rod 116.

It can be understood that, by the piston 114 moving in the first accommodating cavity 112, when the earphone 10 is loosely fitted to the human ear, the piston 114 compresses the fluid in the first accommodating cavity 112 into the second accommodating cavity 122 in the second housing 120, so that the ear-entering portion of the earphone 10 becomes larger, or the outer contour of the second housing 120 becomes larger, and thus the ear-entering portion of the earphone 10 is tightly fitted to the ear hole, which can improve the low-frequency sound effect and reduce the falling of the earphone 10 out of the ear hole. When the earphone 10 is fitted too tightly to the ear canal, the piston 114 moves in the opposite direction, so that the fluid is returned from the second receiving chamber 122 in the second housing 120 to the first receiving chamber 112, thereby achieving the best balance of tight fit and comfort. Wherein, the piston 114 can be manually adjusted to move by the adjusting rod 116 with one end connected with the piston 114 and the other end extending out of the first accommodating cavity 112, thereby improving the convenience of size adjustment of the earphone 10.

Further, the adjustment rod 116 is screw-coupled to the wall of the first accommodation chamber 112. The adjustment rod 116 converts the rotational motion into a linear motion by means of a screw thread to drive the piston 114 to move in the first accommodation chamber 112. Or, an external thread is arranged on the adjusting rod 116, a screw hole is arranged on the first accommodating cavity 112, and the external thread and the screw hole are matched to realize the threaded connection between the adjusting rod 116 and the first accommodating cavity 112. Through the threaded connection of the adjusting rod 116 and the first accommodating cavity 112, the movement of the piston 114 arranged in the first accommodating cavity 112 can be adjusted, and meanwhile, the adjusting rod 116 can be fixed and limited in the axial direction, so that the position of the adjusting rod 116 is kept stable, and the size of the ear insertion part of the earphone 10 can be kept unchanged after the adjustment is completed. In addition, the threaded connection also tends to seal the adjustment stem 116 from the first receiving chamber 112. It should be particularly noted that the adjusting rod 116 connected by the screw thread converts the screw motion into the linear motion of the piston 114, the adjusting range in the axial direction of the adjusting rod 116 is small and stable, which is convenient for fine adjustment of the size of the ear insertion portion of the earphone 10, so that the convenience of adjustment of the ear insertion portion of the earphone 10 can be improved, the comfort of the adjusting process can be improved, and the phenomenon of discomfort or too loose ear insertion portion caused by too large adjusting range can be avoided.

In the above embodiment, the earphone 10 further comprises a seal 118. A sealing member 118 is fitted over the piston 114 for sealing a gap between the piston 114 and the first receiving chamber 112. The seal 118 seals the gap between the piston 114 and the first receiving chamber 112 and prevents fluid from leaking between the engaging surfaces of the piston 114 and the first receiving chamber 112. Wherein the sealing member 118 may be a sealing ring.

In any of the above embodiments, the sound emitting cavity 160 is disposed between the first accommodating cavity 112 and the sound guide 130, or the first accommodating cavity 112 is disposed on a side of the sound emitting cavity 160 away from the sound guide 130. The adjustment lever 116 is located on a side of the first receiving chamber 112 away from the sound-emitting chamber 160. First chamber 112 that holds sets up in one side that leading sound spare 130 was kept away from in vocal chamber 160, and the chamber 160 and leading sound spare 130 of being convenient for directly communicate avoids first chamber 112 that holds to set up between vocal chamber 160 and leading sound spare 130, influences sound production subassembly 162 and spreads out sound from leading sound hole 136 to influence tone quality. The adjusting rod 116 is located at a side of the first accommodating cavity 112 away from the sound-emitting cavity 160, so as to avoid affecting wearing of the earphone 10, and also to make the adjusting rod 116 easy to adjust.

Further, the earphone 10 also includes a duct 134. The delivery tube 134 is disposed within the first housing 110. Both ends of the guide tube 134 communicate with the first receiving chamber 112 and the fluid passage 132, respectively. Fluid can flow between the second receiving chamber 122 and the first receiving chamber 112 through the fluid passage 132 and the fluid guide tube 134 to change the volume of fluid in the second receiving chamber 122, thereby adjusting the fit of the earphone 10 to the human ear. It is understood that the fluid delivery tube 134 may be a flexible material or a rigid material. By connecting the fluid passage 132 and the first accommodating chamber 112 through the fluid guide tube 134, the distance between the fluid passage 132 and the first accommodating chamber 112 can be extended, so that the position of the first accommodating chamber 112 can be flexibly set, so as to ensure the flexibility of designing the positions of other components in the earphone.

In some embodiments, the delivery tube 134 is disposed between the sound emitting assembly 162 and the first housing 110. Therefore, the fluid flows in the first housing 110, which is beneficial to protecting the draft tube 134 through the first housing 110, and reduces the risk of liquid leakage caused by rubbing and colliding of the draft tube 134. In addition, the duct 134 has a small volume and a slender shape, and is disposed between the sound generating assembly 162 and the first housing 110, so as to facilitate full utilization of the idle space in the first housing 110. The duct 134 has a bend for avoiding the sound emitting assembly 162. Because honeycomb duct 134 locates between sound production subassembly 162 and the first casing 110, the space shape between sound production subassembly 162 and the first casing 110 is irregular, sets up the kink through honeycomb duct 134 on to make honeycomb duct 134 can dodge sound production subassembly 162, avoid taking place to interfere between the two. The space provided between the sounding module 162 and the first housing 110 communicates the first receiving chamber 112 and the fluid passage 132. Flexibility in the positional design of the sound emitting assembly 162 and other components within the first housing 110 is also ensured.

In other embodiments, the headset 10 further includes a first connecting tube member 142. The first connection pipe 142 is provided at one end of the fluid passage 132 for communicating the fluid passage 132 and the delivery pipe 134. The first connecting pipe fitting 142 is used for communicating the fluid passage 132 with the guide pipe 134, so that the fluid passage 132 and the guide pipe 134 are firmly and stably connected and are easy to mount and dismount, meanwhile, the sealing between the guide pipe 134 and the fluid passage 132 can be better realized, and the risk of liquid leakage is reduced.

In other embodiments, the headset further comprises a second connecting tube 144. The second connecting pipe 144 is disposed on the wall of the first accommodating chamber 112 for communicating the first accommodating chamber 112 with the flow guide pipe 134. Through the first chamber 112 and the honeycomb duct 134 that holds of second connecting tube 144 intercommunication, can make first chamber 112 and the honeycomb duct 134 firm in connection that holds, stable, easily installation and dismantlement can also realize sealed between honeycomb duct 134 and the first chamber 112 that holds better simultaneously, reduce the risk of weeping. It is understood that the wall of the first receiving chamber 112 is provided with a through hole to facilitate the installation of the second connecting pipe 144.

In any of the above embodiments, the sound guide 130 has a second step 202 at one end. The first housing 110 is provided with a first step 200. The first housing 110, the sound guide 130, the first step 200 and the second step 202 form a first limiting groove. One end of the second shell is provided with a first limiting part 220, and the first limiting part 220 is arranged in the first limiting groove. The first limiting part 220 and the first limiting groove are matched for limiting, so that one end of the second shell 120 can be connected to the first shell 110 and the sound guide piece 130, the positions of the first shell and the sound guide piece are relatively fixed, the first shell and the sound guide piece are not easy to separate, sealing is convenient to realize, and liquid leakage is avoided.

In any of the above embodiments, the earphone further includes a coupling nut 140, and the coupling nut 140 crimps the other end of the second housing 120 to the sound guide 130. The coupling nut 140 is coupled to the sound guide 130 and the second housing 120, so that the flexible second housing 120 can be easily fixed to the sound guide 130. Through coupling nut 140 and leading sound piece 130 threaded connection, not only connect conveniently, be convenient for still seal the fluid in second holds the chamber 122, avoid producing the weeping.

Further, the other end of the sound guide 130 is provided with a fourth step 212. The coupling nut 140 is provided with a third step 210. The sound guide 130, the coupling nut 140, the third step 210 and the fourth step 212 form a second limiting groove. The other end of the second housing 120 is provided with a second limiting portion 222, and the second limiting portion 222 is disposed in the second limiting groove. The second limiting portion 222 and the second limiting groove are matched for limiting, so that the other end of the second casing 120 can be connected to the first casing 110 and the sound guide 130, and the other end of the second casing 120 is prevented from being separated from the connecting nut 140 and the sound guide 130. In this way, both ends of the second housing 120 are fixed so as to seal the fluid in the second receiving chamber 122.

In some embodiments, the headset 10 further includes at least one or a combination of: circuit board, battery 172, and the like.

It is to be appreciated that the circuit board and battery 172 are typically disposed in the wireless headset 10, wherein the circuit board is disposed in the sound-generating chamber, is connected to the sound-generating assembly 162, and is used to control the sound-generating assembly 162 to generate sound. The battery 172 is disposed in the sound-generating chamber, connected to the sound-generating assembly 162, and supplies power to the sound-generating assembly 162.

As shown in fig. 1 and 2, according to the earphone 10 of one embodiment of the present application, the earphone 10 includes a first housing 110, a second housing 120, a sound-guiding member 130, a duct 134, a coupling nut, and a fluid. The sound guide 130, the first housing 110, and the coupling nut 140 fix the second housing 120 together, so that the fluid in the second housing 120 does not flow out. The sound-guiding member 130 is provided with a fluid passage 132 connected to the rear of the earphone 10 together with a duct 134. A first accommodating chamber 112 is provided in the first housing 110, a piston 114 is provided in the first accommodating chamber 112, and a sealing member 118 is provided between the piston 114 and the first housing. An adjusting rod 116 is connected to the piston 114, and the adjusting rod 116 extends out of the first accommodating cavity 112 to adjust the position of the piston 114.

As shown in fig. 2, when the earphone 10 is loosely fitted to the ear of a person, the adjusting rod 116 is rotated to move the piston 114 leftward, so as to compress the fluid in the first accommodating chamber 112 to enter the second accommodating chamber 122 through the duct 134 and the fluid channel 132, so that the volume of the second accommodating chamber 122 of the earphone 10 is increased, the ear-entering portion of the earphone 10 is tightly fitted to the ear hole, the earphone 10 fits the ear hole more, thereby improving the low-frequency sound effect and preventing the earphone 10 from falling off. When the earphone 10 is fitted too tightly to the ear hole and comfort is not good, the adjustment rod 116 is adjusted to move the piston 114 to the right, fluid flows back into the first receiving chamber 112, and the pressure of the ear hole presses the fluid back into the first receiving chamber 112 through the fluid passage 132 and the duct 134, so that a new balance is obtained, as shown in fig. 1. Through adjustment, the optimal balance state of elastic fit and comfort can be finally achieved. The beneficial effects can be summarized as follows:

1. this embodiment can obtain the same acoustic effect and the user comfort level of different user groups with one set of earphone design processing size, realizes continuously variably, and tone quality and comfort level promote by a wide margin.

2. The low-frequency response performance requirement on the earphone single body is reduced, and the design difficulty of the earphone single body is reduced.

It can be understood that the present application is not limited to in-ear headphones, and in other places where the requirement for tight fit is high in engineering, the present application can also be adopted for adjustment.

Other configurations of headphones according to embodiments of the present application, such as sound emitting devices and the like, and operation are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An earphone, comprising:

a first housing having a first accommodation chamber and a sound generation chamber;

the sounding component is arranged in the sounding cavity;

one end of the sound guide piece is communicated with the sounding cavity, and a fluid channel is arranged in the sound guide piece;

the second shell is sleeved on the sound guide piece and is a flexible shell, an adjustable second accommodating cavity is formed between the second shell and the sound guide piece, and the second shell is used for being worn in the ear of a user;

one end of the fluid channel is communicated with the first accommodating cavity, and the other end of the fluid channel is communicated with the second accommodating cavity;

the fluid is arranged in the first accommodating cavity, the second accommodating cavity and the fluid channel;

and part of the adjusting assembly movably extends into the first accommodating cavity, and the adjusting assembly is used for moving in the first accommodating cavity and driving the fluid to flow so as to adjust the outer contour of the second shell.

2. The headset of claim 1, wherein the adjustment assembly comprises:

the piston is movably arranged in the first accommodating cavity;

one end of the adjusting rod is connected with the piston, and the other end of the adjusting rod extends out of the first accommodating cavity.

3. The earphone according to claim 2, wherein the adjusting rod is in threaded connection with the wall of the first receiving cavity, and the adjusting rod converts the rotary motion into the linear motion through the threads so as to drive the piston to move in the first receiving cavity.

4. The earphone according to any one of claims 1 to 3, wherein the first receiving cavity is provided on a side of the sound generating cavity away from the sound guide, and the adjusting assembly is located on a side of the first receiving cavity away from the sound generating cavity.

5. The headset of claim 4, further comprising:

the honeycomb duct, the honeycomb duct is located in the first casing, the one end of honeycomb duct with first chamber intercommunication that holds, the other end of honeycomb duct with fluid passage intercommunication.

6. The headset of claim 5,

the flow guide pipe is arranged between the sound production assembly and the first shell;

the honeycomb duct has the kink, the kink is used for dodging the sound production subassembly.

7. The headset of any one of claims 1 to 3,

a first step is arranged on the first shell;

one end of the sound guide piece is provided with a second step;

the first shell, the first step, the sound guide piece and the second step form a first limiting groove;

one end of the second shell is provided with a first limiting portion, and the first limiting portion is arranged in the first limiting groove.

8. The headset of any one of claims 1-3, further comprising:

and the other end of the second shell is crimped on the sound guide piece by the connecting nut.

9. The headset of claim 8,

a third step is arranged on the connecting nut;

the other end of the sound guide piece is provided with a fourth step;

a second limiting groove is formed by the connecting nut, the sound guide piece, the third step and the fourth step;

the other end of the second shell is provided with a second limiting portion, and the second limiting portion is arranged in the second limiting groove.

10. The headset of any one of claims 1-3, further comprising:

the battery is arranged in the sounding cavity, is connected with the sounding assembly and supplies power to the sounding assembly; and/or

The circuit board is arranged in the sounding cavity, connected with the sounding assembly and used for controlling the sounding assembly to sound.