CN114501215A

CN114501215A - Head earphone

Info

Publication number: CN114501215A
Application number: CN202210003219.1A
Authority: CN
Inventors: 周伟
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-05-13

Abstract

The application discloses headphone includes: the earmuff comprises a head band, a connecting piece, a driving piece and two earmuff bodies; the headband is characterized in that an accommodating space is formed in the headband, openings communicated with the accommodating space are respectively formed in two ends of the headband, a first bulge and a second bulge are respectively arranged on the inner walls of the accommodating space close to the two openings, and a gap is formed between the first bulge and the second bulge; the driving piece is connected with the connecting piece, the connecting piece is arranged in the accommodating space, two ends of the connecting piece respectively penetrate through the gap and extend out of the two openings, and two ends of the connecting piece are correspondingly connected with the two earmuff bodies one by one; the connecting piece can move relative to the first bulge or the second bulge under the driving of the driving piece so as to adjust the distance between the two earmuff bodies.

Description

Head earphone

Technical Field

The application belongs to the technical field of electron, concretely relates to headphone.

Background

With the continuous progress of science and technology, electronic products are not developed towards the trend of light and miniaturization, people can use miniaturized electronic products anytime and anywhere, and earphones are necessary accessories of electronic products for users to listen to sound information provided by electronic products without interfering other people. In addition, the earphone also provides better sound transmission for the listener, so that the listener can clearly hear and understand the sound content, unlike the situation that the sound transmission in the air causes unclear condition, and especially, the sound transmission in the user moving period, such as in sports, driving, violent activity or noisy environment, is not affected.

Among various earphones, the headphone is an earphone type preferred by users because of comfortable wearing feeling and excellent sound quality. The existing headset can not be adjusted according to actual requirements when in use, so that the problem of over-tightness or over-tightness of wearing exists in different degrees.

Disclosure of Invention

The application aims to provide a headset, which can solve the problem that the existing headset cannot be adjusted as required, so that the existing headset is worn too loosely or too tightly.

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

the embodiment of the application provides a headset, include: the earmuff comprises a head band, a connecting piece, a driving piece and two earmuff bodies;

the headband is characterized in that an accommodating space is formed in the headband, openings communicated with the accommodating space are respectively formed in two ends of the headband, a first bulge and a second bulge are respectively arranged on the inner walls of the accommodating space close to the two openings, and a gap is formed between the first bulge and the second bulge;

the driving part is connected with the connecting part, the connecting part is arranged in the accommodating space, two ends of the connecting part respectively penetrate through the gap and extend out of the two openings, and two ends of the connecting part are correspondingly connected with the two earmuff bodies one by one;

the connecting piece can move relative to the first bulge or the second bulge under the driving of the driving piece so as to adjust the distance between the two earmuff bodies.

According to the headset provided by the embodiment of the application, the driving piece is arranged in the accommodating space, and the connecting piece can be abutted against the first bulge and move by taking the first bulge as a fulcrum, or the connecting piece can be abutted against the second bulge and move by taking the second bulge as a fulcrum;

wherein, under the condition that the connecting piece is abutted with the first bulge and moves by taking the first bulge as a fulcrum, the distance between the two earmuff bodies is increased; under the condition that the connecting piece is abutted to the second bulge and moves by taking the second bulge as a fulcrum, the distance between the two earmuff bodies is reduced.

According to the headset provided by the embodiment of the application, the number of the driving parts is two, the two driving parts are respectively arranged on the two ear shield bodies, and the connecting part can be abutted against the first bulge and move by taking the first bulge as a supporting point, or the connecting part can be abutted against the second bulge and move by taking the second bulge as a supporting point;

wherein, under the condition that the connecting piece is abutted with the first bulge and moves by taking the first bulge as a supporting point, the distance between the two earmuff bodies is reduced; under the condition that the connecting piece is abutted to the second bulge and moves by taking the second bulge as a supporting point, the distance between the two earmuff bodies is increased.

According to the headset provided by the embodiment of the application, the headset further comprises a transmission piece, the driving piece is in power coupling connection with the transmission piece, and the transmission piece is in threaded connection with the connecting piece;

the driving piece is driven by the driving piece to rotate relative to the connecting piece, so that the connecting piece moves relative to the driving piece.

According to a headphone that this application embodiment provided, the driving medium includes threaded rod and thread bush, the driving piece with threaded rod power coupling connects, thread bush threaded connection in the threaded rod, the connecting piece with the thread bush is connected.

According to a headphone that this application embodiment provided, the driving piece includes motor and positive reverse rotation button, positive reverse rotation button is located the bandeau, positive reverse rotation button with motor electric connection, the motor with driving medium power coupling connects.

According to the headset provided by the embodiment of the application, the driving piece comprises a shape memory alloy piece and a heating component;

the shape memory alloy spare with the connecting piece is connected, heating element is used for generating heat, heating element with the shape memory alloy spare is connected, the shape memory alloy spare drives through the thermal deformation of self the connecting piece takes place to remove.

According to the headset provided by the embodiment of the application, the headset further comprises a power supply, the heating assembly comprises a lead, and the power supply is connected with the shape memory alloy piece through the lead.

According to a headphone that this application embodiment provided, the driving piece includes the electricity deformation piece, electricity deformation piece with the connecting piece is connected, electricity deformation piece can be out of shape under the on state, and the drive the connecting piece takes place to remove.

According to the headset provided by the embodiment of the application, the headset further comprises a pressure sensor and a controller, the pressure sensor is arranged on the earmuff body, and the pressure sensor is used for sensing the pressure value between the earmuff body and a wearing object;

and the controller controls the driving piece to execute corresponding actions according to the pressure value of the pressure sensor and the target pressure value.

In the embodiment of this application, the inner wall that the accommodation space is being close to the opening part is provided with first arch and second arch, first arch and second arch can be as fulcrum or strong point, under the drive of driving piece, the first arch of connecting piece relatively or the protruding motion of second, the connecting piece can take place crooked in the interact process with first arch or second arch, thereby make the distance between two earmuff bodies can increase or reduce, that is to say, can adjust two earmuff bodies and wear the elasticity degree between the object according to actual demand.

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 one of cross-sectional views of a headset according to an embodiment of the application;

fig. 2 is a schematic structural diagram of a headset according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a headset according to an embodiment of the present application;

fig. 4 is a second cross-sectional view of a headset according to an embodiment of the present application;

reference numerals:

1: a headband; 2: a transmission member;

21: a threaded rod; 22: a threaded sleeve;

3: an earmuff body; 4: a drive member;

41: a motor; 42: a forward and reverse rotation button;

5: a connecting member; 6: a second protrusion;

7: a first protrusion; 8: a pressure sensor;

9: and a containing space.

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.

In the description of the present application, it is to be understood that the features of the terms "first", "second", and the like may explicitly or implicitly include one or more of the features.

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.

Currently, the types of headphones generally include an open back cavity and a closed back cavity, wherein the low frequency effect of the open back cavity is often affected by the degree of tightness of the wearing of the headphones. The interval between two ear muff bodies of present headphone can't be adjusted, and actually because of user head size is different, consequently there is the earphone to wear the problem of pine or tension not to the same extent, has greatly influenced the comfort level that the user wore the earphone.

In order to solve the above problem, a headphone of an embodiment of the present application is described below with reference to fig. 1 to 4.

As shown in fig. 1, a headphone according to an embodiment of the present application includes: headband 1, connecting piece 5, driving piece 4 and two ear muff bodies 3.

The headband 1 can be a plastic or silica gel structural member, the shape of the headband 1 is matched with the head of a user, and the material and the shape of the headband 1 can be selected according to actual requirements and are not particularly limited.

The inside of the headband 1 has an accommodating space 9, and two ends of the headband 1 are respectively provided with an opening communicated with the accommodating space 9, that is, the accommodating space 9 is communicated with the outside through two openings at two opposite ends.

The inner walls of the accommodating space 9 close to the two openings are provided with a first protrusion 7 and a second protrusion 6. That is, the inner wall of the accommodating space 9 near the first opening is provided with the first protrusion 7 and the second protrusion 6, and the inner wall of the accommodating space 9 near the second opening is also provided with the first protrusion 7 and the second protrusion 6.

The driving piece 4 is connected with the connecting piece 5, the connecting piece 5 is arranged in the accommodating space 9, two ends of the connecting piece 5 penetrate through the gap respectively and extend out of the two openings, and two ends of the connecting piece 5 are connected with the two ear muff bodies 3 in a one-to-one correspondence mode respectively. That is, one end of the connecting member 5 is connected to the first ear cup body 3, and the other end of the connecting member 5 is connected to the second ear cup body 3.

In the case that the headband 1 is flat, the receiving space 9 has a top wall and a top wall, the second protrusion 6 is located on the top wall, the first protrusion 7 is located on the bottom wall, the first protrusion 7 and the second protrusion 6 are oppositely arranged, and a gap is formed between the first protrusion 7 and the second protrusion 6, and the gap is matched with the connecting piece 5. Also, to facilitate assembly of the connector 5, the headband 1 may include a first portion and a second portion that are removably connected.

It should be noted that the connecting member 5 has a certain flexibility, for example, the connecting member 5 may be a steel sheet.

Wherein, under the driving of the driving member 4, the connecting member 5 can move relative to the first protrusion 7 or the second protrusion 6 to adjust the distance between the two earmuff bodies 3.

In this application embodiment, the inner wall of accommodation space 9 near the opening is provided with first arch 7 and second arch 6, first arch 7 and second arch 6 can be as fulcrum or strong point, under the drive of driving piece 4, connecting piece 5 can be first arch 7 or the motion of second arch 6 relatively, connecting piece 5 can take place the bending in the interact process with first arch 7 or second arch 6, thereby make the distance between two earmuff bodies 3 can increase or reduce, that is to say, can adjust the elasticity degree between two earmuff bodies 3 and the wearing object according to actual demand.

In an alternative embodiment, the driving element 4 is disposed in the accommodating space 9, and the connecting element 5 can abut against the first protrusion 7 and move with the first protrusion 7 as a fulcrum, or the connecting element 5 can abut against the second protrusion 6 and move with the second protrusion 6 as a fulcrum.

Wherein, under the condition that the connecting piece 5 is abutted against the first bulge 7 and moves by taking the first bulge 7 as a fulcrum, the distance between the two earmuff bodies 3 is increased; when the connecting member 5 abuts against the second projection 6 and moves with the second projection 6 as a fulcrum, the distance between the two ear cup bodies 3 decreases.

As shown in fig. 3, in the initial state, the link 5 is at the position S1, where the link 5 is located between the first projection 7 and the second projection 6. Under the drive of the driving member 4, the connecting member 5 can move toward the second protrusion 6 until abutting against the second protrusion 6 and moving with the second protrusion 6 as a fulcrum, that is, the connecting member 5 can move toward the top wall of the accommodating space 9, the connecting member 5 at this time is at the position of S2, the connecting member 5 abuts against the second protrusion 6, and the end of the connecting member 5 connected with the earmuff body 3 at this time can bend toward the inner side, so that the distance between the two earmuff bodies 3 is reduced. The term "curve toward the inside" refers to curve toward the side on which the wearing subject is located.

Or, under the driving of the driving element 4, the connecting element 5 can move towards the first protrusion 7 until abutting against the first protrusion 7 and moving with the first protrusion 7 as a fulcrum, that is, the connecting element 5 can move towards the bottom wall of the accommodating space 9, the connecting element 5 at this time is located at the position of S3, the connecting element 5 abuts against the first protrusion 7, and the end of the connecting element 5 connected with the earmuff body 3 at this time can be bent towards the outside, so that the distance between the two earmuff bodies 3 is increased. With outwardly bent is meant a bending away from the side where the wearing object is located.

In an alternative embodiment, as shown in fig. 4, there are two driving members 4, the two driving members 4 are respectively disposed on the two earmuff bodies 3, and the connecting member 5 can abut against the first protrusion 7 and move with the first protrusion 7 as a supporting point, or the connecting member 5 can abut against the second protrusion and move with the second protrusion as a supporting point;

wherein, under the condition that the connecting piece 5 is abutted with the first bulge 7 and moves by taking the first bulge 7 as a supporting point, the distance between the two earmuff bodies 3 is reduced; when the connecting member 5 abuts against the second projection 6 and moves with the second projection 6 as a supporting point, the distance between the two ear cup bodies 3 increases.

It should be noted that the driving member 4 is disposed on the earmuff body 3, and the driving member 4 is connected to the connecting member 5 extending into the earmuff body 3.

In the initial state, the connecting member 5 is positioned between the first projection 7 and the second projection 6, one side of the connecting member 5 abuts against the first projection 7, and the other side of the connecting member 5 abuts against the second projection 6.

Under the drive of driving piece 4, connecting piece 5 and first arch 7 butt and use first arch 7 to move as the strong point, and connecting piece 5 at this moment is connected with the one end of ear muff body 3 and can be towards inboard crooked to make the distance reduce between two ear muff bodies 3.

Or, under the drive of driving piece 4, connecting piece 5 and the protruding 6 butt of second and use second arch 6 to remove as the strong point, and connecting piece 5 this moment be connected with the one end of earmuff body 3 and can be towards outside bending to make the increase of distance between two earmuff bodies 3.

In an alternative embodiment, the headset further comprises a transmission member 2, the driving member 4 is in power coupling connection with the transmission member 2, and the transmission member 2 is in threaded connection with the connecting member 5.

Wherein, under the drive of the driving part 4, the driving part 2 rotates relative to the connecting part 5, so that the connecting part 5 moves relative to the driving part 2.

For example, driving piece 4 locates bandeau 1, and driving piece 4 is connected with the one end of driving medium 2 through the shaft coupling, and connecting piece 5 is equipped with the screw hole, and the screw hole is worn to locate by driving medium 2, and driving medium 2 and connecting piece 5 threaded connection, this moment, the part of driving medium 2 is located accommodation space 9, because accommodation space 9 is to the restraint of connecting piece 5 for connecting piece 5 only can move between the roof of accommodation space 9 and diapire.

Under the drive of driving piece 4, driving medium 2 rotates along clockwise relative connecting piece 5, and connecting piece 5 can move towards the roof of accommodation space 9, and connecting piece 5 this moment is in S2 position department, and connecting piece 5 and the protruding 6 butt of second to use the protruding 6 of second to move as the fulcrum, and connecting piece 5 this moment is connected with the one end that the ear muff body 3 can be towards inboard crooked, thereby makes the distance reduce between two ear muff bodies 3. Or, under the drive of driving piece 4, driving medium 2 rotates along anticlockwise relative to connecting piece 5, and connecting piece 5 can move towards the diapire of accommodation space 9, and connecting piece 5 this moment is in S3 position department, and connecting piece 5 and first arch 7 butt to use first arch 7 to move as the fulcrum, and connecting piece 5 this moment is connected with the one end that the ear muff body 3 can be towards outside bending, thereby makes the distance increase between two ear muff bodies 3.

It should be noted that, in the case that one end of the transmission member 2 extends to the outside of the headband 1, a knob is provided at a portion of the transmission member 2 located outside the headband 1, and the knob is manually pushed so that the transmission member 2 rotates relative to the headband 1, so as to move the connecting member 5 relative to the transmission member 2.

In an alternative embodiment, the transmission element 2 further comprises a threaded rod 21 and a threaded sleeve 22, the drive element 4 being in power-coupled connection with the threaded rod 21, the threaded sleeve 22 being in threaded connection with the threaded rod 21, and the connecting element 5 being in connection with the threaded sleeve 22.

Note that, in order to ensure smooth movement of the link 5 with respect to the threaded rod 21, the link 5 is screwed to the threaded rod 21 via a threaded sleeve 22. The connecting piece 5 can now be divided into two parts, one on each side of the threaded sleeve 22.

In an alternative embodiment, as shown in fig. 2, the driving member includes a motor 41 and a forward/reverse button 42, the forward/reverse button 42 is disposed on the headband 1, the forward/reverse button 42 is electrically connected to the motor 41, and the motor 41 is in power coupling connection with the threaded rod 21.

It should be noted that the forward and reverse rotation button 42 can control the motor 41 to rotate forward or backward, so as to adjust the distance between the two ear muff bodies 3 according to actual requirements.

For example, in the case of normal rotation of the motor 41, the threaded rod 21 rotates clockwise relative to the connecting member 5, the connecting member 5 can move toward the top wall of the accommodating space 9, the connecting member 5 is at the position of S2, the connecting member 5 abuts against the second protrusion 6 and moves with the second protrusion 6 as a fulcrum, and the end of the connecting member 5 connected with the earmuff body 3 at this time can bend toward the inside, so that the distance between the two earmuff bodies 3 is reduced.

Under the condition of motor 41 reversal, threaded rod 21 rotates along anticlockwise relative to connecting piece 5, and connecting piece 5 can move towards the diapire of accommodation space 9, and connecting piece 5 this moment is in S3 position department, and connecting piece 5 and first arch 7 butt to use first arch 7 to move as the fulcrum, the one end that connecting piece 5 this moment is connected with ear muff body 3 can be towards outside bending, thereby makes the distance increase between two ear muff bodies 3.

In an alternative embodiment, the driving member 4 comprises a member of shape memory alloy and a heat generating component. The shape memory alloy part is connected with the connecting part 5, the heating component is used for heating, the heating component is connected with the shape memory alloy part, and the shape memory alloy part drives the connecting part 5 to move through self thermal deformation.

The shape memory alloy piece is made of shape memory alloy, the shape memory alloy is a known material, and the shape of the shape memory alloy can be changed when the temperature of the shape memory alloy changes, namely, the shape memory alloy is subjected to thermal deformation.

The heating component is connected with the shape memory alloy piece and used for heating, so that the purpose of controlling the deformation of the shape memory alloy piece is achieved.

For example, in the case that the driving member 4 is provided on the earmuff body 3, one end of the shape memory alloy member is connected to the portion of the connecting member 5 extending into the earmuff body 3, and in the case that the shape memory alloy member contracts, the connecting member 5 abuts against the first protrusion 7 and moves with the first protrusion 7 as a supporting point, and the end of the connecting member 5 connected to the earmuff body 3 at this time can be bent toward the inside, so that the distance between the two earmuff bodies 3 is reduced.

Or, under the condition that the shape memory alloy part extends, the connecting piece 5 abuts against the second protrusion 6 and moves by taking the second protrusion 6 as a supporting point, and the end, connected with the earmuff body 3, of the connecting piece 5 at the moment can be bent towards the outer side, so that the distance between the two earmuff bodies 3 is increased.

In an alternative embodiment, the headset further comprises a power source, and the heat generating component comprises a wire, and the power source is connected to the shape memory alloy member through the wire. That is, the power source, the wire, and the shape memory alloy member form a heat generating electrical circuit.

Wherein, the heating element can be through generating heat, and then change the temperature of shape memory alloy spare, and the structure of heating element can have a variety, for example the heating element is the heat source, changes the temperature of shape memory alloy spare through the mode of heat transfer, and of course, the heating element can make shape memory alloy spare self generate heat.

When the heating circuit is in a power-on state, the shape memory alloy member serves as a conductor, and when the heating circuit is conductive, the shape memory alloy member can generate heat and further can deform because the shape memory alloy member has resistance.

It can be understood that the heating component is simple in structure, only one heating electric loop needs to be formed, and meanwhile, the shape memory alloy piece can be used as a component for forming the heating electric loop, so that the dual-purpose effect of one object is achieved, and the structure of the heating component is simplified.

In an alternative embodiment, the driving member 4 comprises an electro-deformable member, which is connected to the connecting member 5, and which is capable of deforming when energized, thereby driving the connecting member 5 to move.

The material of the electrostrictive element can be an ionic polymer metal composite material. Of course, the material of the electrostrictive element may also be other materials, such as piezoelectric ceramics, and is not limited in this respect.

For example, one end of the electro-deformable member is connected to the top wall of the accommodating space 9, and the other end of the electro-deformable member is connected to the connecting member 5.

Under the condition that the electro-deformation piece takes place to shorten, connecting piece 5 can move towards the roof of accommodation space 9, and connecting piece 5 this moment is in S2 position department, and connecting piece 5 and the protruding 6 butt of second to use the protruding 6 of second to move as the fulcrum, connecting piece 5 this moment be connected with the one end of ear muff body 3 and can be towards inboard crooked, thereby make the distance reduce between two ear muff bodies 3.

Under the condition that the extension takes place at the electricity deformation piece, connecting piece 5 can move towards the diapire of accommodation space 9, and connecting piece 5 this moment is in S3 position department, connecting piece 5 and first arch 7 butt to use first arch 7 to move as the fulcrum, connecting piece 5 this moment be connected with the one end of ear muff body 3 can be towards outside bending, thereby make the increase of distance between two ear muff bodies 3.

In an alternative embodiment, the headset further comprises a pressure sensor 8 and a controller, the pressure sensor being provided at the earmuff body 3, the pressure sensor being configured to sense a pressure value between the earmuff body 3 and a wearing subject. For example, one ear cup body 3 is correspondingly provided with one pressure sensor 8.

Wherein, the controller controls the driving member 4 to execute corresponding actions according to the pressure value of the pressure sensor 8 and the target pressure value.

For example, in the case that the pressure value of the pressure sensor 8 is greater than the target pressure value, under the driving of the motor 41, the threaded rod 21 rotates in the counterclockwise direction relative to the connecting member 5, the connecting member 5 can move toward the bottom wall of the accommodating space 9, at this time, the connecting member 5 is located at the position of S3, the connecting member 5 abuts against the first protrusion 7 and moves with the first protrusion 7 as a fulcrum, at this time, one end of the connecting member 5, to which the earmuff body 3 is connected, can bend toward the outside, so that the distance between the two earmuff bodies 3 increases until the pressure value of the pressure sensor 8 is equal to the target pressure value.

Under the condition that pressure sensor 8 'S the pressure value is less than the target pressure value, under the drive of motor 41, threaded rod 21 rotates along clockwise relative connecting piece 5, connecting piece 5 can move towards the roof of accommodation space 9, connecting piece 5 at this moment is in S2 position department, connecting piece 5 and the protruding 6 butt of second, and use the protruding 6 of second to move as the fulcrum, the one end that connecting piece 5 was connected with ear muff body 3 at this moment can be towards inboard bending, thereby make the distance reduce between two ear muff bodies 3, until pressure sensor 8' S the pressure value equals the target pressure value.

It should be noted that, different target pressure values may also be stored in the controller, that is, a user may select different target pressure values according to different scene requirements.

In the description herein, references to the description of the term "alternative implementations" or the like mean 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. A headset, comprising: the earmuff comprises a head band, a connecting piece, a driving piece and two earmuff bodies;

the driving piece is connected with the connecting piece, the connecting piece is arranged in the accommodating space, two ends of the connecting piece respectively penetrate through the gap and extend out of the two openings, and two ends of the connecting piece are correspondingly connected with the two earmuff bodies one by one;

2. The headphone as claimed in claim 1, wherein the driving member is disposed in the accommodating space, and the connecting member is capable of abutting against the first protrusion and moving with the first protrusion as a fulcrum, or the connecting member is capable of abutting against the second protrusion and moving with the second protrusion as a fulcrum;

wherein, under the condition that the connecting piece is abutted with the first bulge and moves by taking the first bulge as a fulcrum, the distance between the two earmuff bodies is increased; under the condition that the connecting piece is abutted against the second bulge and moves by taking the second bulge as a fulcrum, the distance between the two earmuff bodies is reduced.

3. The headphone as claimed in claim 1, wherein the number of the driving members is two, the two driving members are respectively disposed on the two ear muff bodies, and the connecting member is capable of abutting against the first protrusion and moving with the first protrusion as a supporting point, or the connecting member is capable of abutting against the second protrusion and moving with the second protrusion as a supporting point;

4. The headset of any one of claims 1 to 3, further comprising a transmission member, wherein the driving member is in power coupling connection with the transmission member, and wherein the transmission member is in threaded connection with the connecting member;

5. The headset of claim 4, wherein the transmission member includes a threaded rod and a threaded sleeve, the driving member being in powered coupling with the threaded rod, the threaded sleeve being threadedly connected to the threaded rod, and the connecting member being connected to the threaded sleeve.

6. The headset of claim 4, wherein the driving member comprises a motor and a forward/reverse button, the forward/reverse button is disposed on the headband, the forward/reverse button is electrically connected to the motor, and the motor is in power coupling connection with the transmission member.

7. The headphone of any of claims 1 to 3, wherein the driving member comprises a shape memory alloy member and a heat generating component;

the shape memory alloy part is connected with the connecting part, the heating component is used for heating, the heating component is connected with the shape memory alloy part, and the shape memory alloy part drives the connecting part to move through self thermal deformation.

8. The headset of claim 7, further comprising a power source, wherein the heat generating component comprises a wire, and wherein the power source is coupled to the shape memory alloy element via the wire.

9. A headphone as claimed in any one of claims 1 to 3 wherein the driving member comprises an electro-deformable element, the electro-deformable element being connected to the connecting member, the electro-deformable element being capable of deforming when energized to drive the connecting member to move.

10. The headset of claim 1, further comprising a pressure sensor and a controller, the pressure sensor being disposed at the earmuff body, the pressure sensor being configured to sense a pressure value between the earmuff body and a wearing subject;