CN112911451B

CN112911451B - Earphone and electronic equipment

Info

Publication number: CN112911451B
Application number: CN202110282742.8A
Authority: CN
Inventors: 陈远强
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2023-06-16
Anticipated expiration: 2041-03-16
Also published as: CN112911451A

Abstract

The application discloses earphone and electronic equipment, earphone includes head, regulating part, extrusion part and elastic part; the elastic piece is sleeved on the head; the extrusion piece is arranged on the head part and is provided with an extrusion surface, and the extrusion surface is contacted with the elastic piece; the adjusting piece is connected with the extrusion piece and can be used for driving the extrusion piece to move so as to extrude or release the elastic piece, and then the volume of the elastic piece protruding out of the surface of the head is adjusted. The earphone disclosed by the application can ensure that the head size is matched with the ear size of a user, ensure the wearing comfort of the user, and simultaneously promote the applicability of the earphone, and perfectly meet the requirements of different users.

Description

Earphone and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to an earphone and electronic equipment.

Background

As shown in fig. 1, the earphone 200' is fixed in size, and the ears of the user are small, so that the earphone 200' cannot be compatible with the needs of different users, which makes the earphone 200' not compatible with the needs of different users.

Disclosure of Invention

The application aims at providing an earphone and electronic equipment, and at least solves the technical problem that the existing earphone is fixed in size and cannot be compatible with different users.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, embodiments of the present application provide an earphone including a head, an adjustment member, an extrusion, and an elastic member; the elastic piece is sleeved on the head; the extrusion piece is arranged on the head part and is provided with an extrusion surface, and the extrusion surface is contacted with the elastic piece; the adjusting piece is connected with the extrusion piece and can be used for driving the extrusion piece to move so as to extrude or release the elastic piece, and then the volume of the elastic piece protruding out of the surface of the head is adjusted.

In a second aspect, an embodiment of the present application proposes an electronic device, including: headphones as in the above embodiments.

In the embodiment of the application, the elastic piece is sleeved on the head, the extrusion part is arranged on the head, and the extrusion surface of the extrusion part is ensured to be contacted with the elastic piece; the adjusting piece is connected with the extrusion piece and can drive the extrusion piece to move; the pressing movement may force the pressing surface to press or release the elastic member. When the extrusion part extrudes the elastic part, the elastic part is pressed and deformed so as to protrude out of the surface of the peripheral side of the head; when the extrusion releases the elastic piece, the elastic piece restores its original shape under the self-elasticity action and retracts into the head; and in the process of extruding the elastic piece, the extrusion degree of the elastic piece can be adjusted according to actual conditions, so that the volume of the elastic piece protruding out of the surface of the head is adjusted, the requirements of different customers are met, and the adaptability of the earphone is improved.

In particular, the user typically inserts his head into the interior of his ear during use of the headset. The ear sizes of different users are different, and when the head size is not matched with the ear size of the user, the user can often wear the ear to generate discomfort, and even the ear cannot be used. According to the embodiment of the application, the volume of the elastic piece protruding out of the surface of the head can be adjusted through the cooperation of the adjusting piece and the extrusion piece. Thus, when the user feels that the head is undersized, the volume of the elastic piece protruding out of the surface of the head can be increased through the cooperation of the adjusting piece and the pressing piece; when the user feels that the head size is too big, the cooperation of accessible regulating part and extruded piece reduces the volume of elastic component protrusion in head surface, and then makes an earphone can be applicable to different users, guarantees head size and user's ear size assorted, guarantees the comfort level that the user was worn, promotes the suitability of earphone simultaneously, perfect compatibility different user's demand.

Additional aspects and advantages of the 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 application.

Drawings

The foregoing 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, wherein:

fig. 1 is a schematic diagram of a headset in the related art.

Reference numerals in fig. 1:

200' earphone.

FIG. 2 is one of the schematic diagrams of an earphone according to one embodiment of the present application;

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

fig. 4 is a cross-sectional view of the headset of fig. 2;

FIG. 5 is an enlarged schematic view of a portion of the headset of FIG. 4;

fig. 6 is a cross-sectional view of the headset of fig. 3;

FIG. 7 is an enlarged partial schematic view of the headset of FIG. 6;

FIG. 8 is one of the schematic diagrams of an extrusion in a headset according to one embodiment of the present application;

FIG. 9 is a second schematic view of an extrusion in a headset according to one embodiment of the present application;

FIG. 10 is a third schematic illustration of an extrusion in a headset according to one embodiment of the present application;

FIG. 11 is one of the schematic views of the knob in the headset according to one embodiment of the present application;

FIG. 12 is a second schematic view of a knob in a headset according to one embodiment of the present application;

FIG. 13 is one of the schematic views of the elastic member in the headset according to one embodiment of the present application;

fig. 14 is a second schematic view of the elastic member in the earphone according to one embodiment of the present application.

Reference numerals in fig. 2 to 14:

102 head, 104 adjusting piece, 106 extrusion piece, 108 elastic piece, 110 extrusion face, 112 body, 114 interval, 116 first guide screw thread, 118 second guide screw thread, 120 knob, 122 first tooth structure, 124 second tooth structure, 126 rotating shaft, 128 cambered surface, 130 sinking platform.

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 or similar reference numerals refer to the like or similar elements throughout or elements having the same or similar functions. The embodiments described below by referring 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 made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms in the description and claims of this application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, the term "and/or" in the description and claims means at least one of the connected objects.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being 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 application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Headphones and electronic devices according to embodiments of the present application are described below in connection with fig. 2 to 14. Wherein, in fig. 2, the elastic member 108 is in a compressed state, and in fig. 3, the elastic member 108 is in a natural state.

As shown in fig. 2 and fig. 3, an embodiment of the present application proposes an earphone, including: a head 102, an adjustment member 104, a squeeze member 106 and an elastic member 108. Wherein the elastic member 108 is sleeved on the head 102, the pressing member 106 is arranged on the head 102, and the pressing surface 110 of the pressing member 106 is ensured to be contacted with the elastic member 108; the adjusting piece 104 is connected with the extrusion piece 106 and can drive the extrusion piece 106 to move; movement of the expression member 106 may force the expression surface 110 to compress or release the elastic member 108. As shown in fig. 2, when the pressing member 106 presses the elastic member 108, the elastic member 108 is pressed to deform so as to protrude from the surface of the head 102 on the peripheral side; as shown in FIG. 3, when the extrusion 106 releases the elastic member 108, the elastic member 108 returns to its original shape by its own elasticity and retracts into the interior of the head 102; in addition, in the process of extruding the elastic member 108, the extrusion degree of the elastic member 108 can be adjusted according to the actual situation, so as to adjust the volume of the elastic member 108 protruding out of the surface of the head 102, thereby adapting to the requirements of different customers and improving the adaptability of the earphone.

Specifically, the user typically plugs the head 102 into the interior of the ear during use of the headset. The ear sizes of different users are different, and when the head 102 is not matched with the ear size of the user, the user may wear the ear, which is uncomfortable or even unusable. In the embodiment of the present application, the volume of the elastic member 108 protruding from the surface of the head 102 can be adjusted by the cooperation of the adjusting member 104 and the pressing member 106. Thus, as shown in FIGS. 2, 4 and 5, when the user feels that the head 102 is undersized, the volume of the elastic member 108 protruding from the surface of the head 102 can be increased by the engagement of the adjustment member 104 and the pressing member 106; as shown in fig. 3, 6 and 7, when the user feels that the size of the head 102 is too large, the volume of the elastic piece 108 protruding out of the surface of the head 102 is reduced by the cooperation of the adjusting piece 104 and the pressing piece 106, so that one earphone can be suitable for different users, the size of the head 102 is ensured to be matched with the size of the ear of the user, the wearing comfort of the user is ensured, meanwhile, the applicability of the earphone is improved, and the earphone is perfectly compatible with the requirements of different users.

In addition, because the volume of the earphone adjustable elastic piece 108 protruding out of the surface of the head 102 is provided in the embodiment of the application, one earphone can be suitable for different users, universality of the earphone is realized, the use requirements of all family members can be met by configuring one earphone in one family, and the use cost of the earphone is effectively reduced.

As a possible implementation, as shown in fig. 4 and 6, the headset further includes a body 112. Wherein the body 112 is connected to the head 102, a space 114 is formed between the body 112 and the head 102, and the elastic member 108 is located in the space 114. As shown in fig. 6 and 7, when the pressing member 106 does not press the elastic member 108, the elastic member 108 is received inside the space 114 and does not protrude from the surface of the head 102; as shown in fig. 4 and 5, when the pressing member 106 presses the elastic member 108, the elastic member 108 is deformed by being pressed and may protrude from the space 114 to the surface of the head 102. In this way, through the arrangement of the space 114 between the body 112 and the head 102, on one hand, the accommodating place is provided for the elastic element 108, and on the other hand, the elastic element 108 is ensured to be protruded out of the surface of the head 102, so that the adjustability of the earphone is realized, and the earphone is perfectly suitable for different users.

As one possible embodiment, as shown in fig. 8, 9 and 10, the head 102 is provided with a sink 130 toward one end of the body 112, and the above-mentioned space 114 is formed by a gap between a sidewall of the sink 130 and the body 112. In addition, the elastic piece 108 is directly sleeved on the bottom wall of the sinking platform 130, and a certain distance is reserved between the elastic piece 108 and the bottom wall of the sinking platform 130; the portion of the pressing member 106 where the pressing surface 110 is provided is projected between the elastic member 108 and the bottom wall of the sinking table 130 so that the pressing surface 110 is in contact with the inside of the elastic member 108. Thus, when the adjusting member 104 drives the pressing member 106 to move, the elastic member 108 is pressed or released, so as to adjust the volume of the elastic member 108 protruding from the surface of the head 102.

As a possible embodiment, as shown in fig. 8, 9 and 10, the pressing surface 110 is a slope, and the pressing surface 110 gradually slopes toward the inside of the regulating member 104 in a direction from the body 112 to the head 102; in addition, the expression member 106 is reciprocally movable by the drive of the adjustment member 104. Thus, as shown in FIG. 5, when the pressing member 106 is driven by the adjusting member 104 to move in the first direction, the pressing force applied to the elastic member 108 by the pressing surface 110 is gradually increased, so that the deformation of the elastic member 108 is gradually increased, and the volume of the elastic member 108 protruding from the surface of the head 102 is gradually increased; as shown in fig. 7, when the pressing member 106 is driven by the adjusting member 104 to move in the second direction, the pressing force applied to the elastic member 108 by the pressing surface 110 gradually decreases, so that the deformation of the elastic member 108 gradually decreases, and the volume of the elastic member 108 protruding from the surface of the head 102 gradually decreases, and may even retract into the space 114.

Specifically, the first direction is a direction approaching to the sidewall of the sinking platform 130, and the second direction is a direction separating from the sidewall of the sinking platform 130. That is, when the pressing member 106 moves toward the side wall of the sinking table 130 under the driving of the adjusting member 104, the pressing force applied to the elastic member 108 by the pressing surface 110 gradually increases, so that the deformation of the elastic member 108 gradually increases; when the pressing member 106 moves away from the side wall of the sinking table 130 under the driving of the regulating member 104, the pressing force applied to the elastic member 108 by the pressing surface 110 gradually decreases, and the volume of the elastic member 108 protruding from the surface of the head 102 gradually decreases, and even can retract into the space 114.

Therefore, the extrusion surface 110 is designed as an inclined surface, so that gradual adjustment and stepless adjustment of the elastic element 108 can be realized, no gear limit exists in the adjustment process, the volume of the elastic element 108 protruding out of the surface of the head 102 can be adjusted at will, and the applicability of the earphone is further improved.

In a specific embodiment, the first direction is the direction from the body 112 to the head 102, and the second direction is the direction from the head 102 to the body 112. That is, as the pressing member 106 moves toward the head 102 side, the volume of the elastic member 108 protruding from the surface of the head 102 can be gradually increased; as the expression member 106 moves toward the side of the body 112, the volume of the spring member 108 protruding from the surface of the head 102 may be gradually reduced.

As one possible embodiment, as shown in fig. 5, 7, 8 and 9, the pressing member 106 is provided with a first guide screw 116, the head 102 is provided with a second guide screw 118, and the extending directions of the first guide screw 116 and the second guide screw 118 are based on the above-described first direction (second direction). During use of the headset, the first guide screw 116 and the second guide screw 118 are engaged; thus, when the pressing member 106 is driven by the adjusting member 104 to move in the first direction, the pressing member 106 is continuously rotated under the guiding action of the first guiding thread 116 and the second guiding thread 118, and the elastic member 108 is forced to be elastically deformed gradually while rotating, so that the volume of the elastic member 108 protruding from the surface of the head 102 is gradually increased; when the pressing member 106 is operated in the second direction by the driving of the regulating member 104, the pressing member 106 is continuously rotated reversely by the guiding action of the first guiding screw 116 and the second guiding screw 118, and the elastic member 108 is forced to release the elastic member 108 while being rotated reversely, so that the volume of the elastic member 108 protruding from the surface of the head 102 is gradually reduced.

Moreover, the first guide thread 116 and the second guide thread 118 are matched without strict gear limitation, so that a user can randomly adjust the volume of the elastic piece 108 protruding out of the surface of the head 102 according to actual situations, and the applicability of the earphone is further improved.

In a particular embodiment, the first guide threads 116 are internal guide threads provided on the expression member 106 and the second guide threads 118 are external guide threads provided on the head 102.

As a possible embodiment, as shown in fig. 5, 7, 8 and 9, the first guide thread 116 and the second guide thread 118 are self-locking threads that are adapted. Thus, when the user arbitrarily adjusts the volume of the elastic member 108 protruding from the surface of the head 102, the first guide thread 116 and the second guide thread 118 perform self-locking, so that the first guide thread 116 and the second guide thread 118 are ensured to be in a relatively stable state, and a limit exists. Thus, in the process of wearing the earphone by the user, the elastic piece 108 does not move due to contact with the ears of the user, so that the stability of the earphone is ensured.

As one possible implementation, as shown in fig. 11 and 12, extrusion 106 includes knob 120. Wherein, as shown in fig. 5 and 7, a first tooth structure 122 is provided on the knob 120, a second tooth structure 124 is provided on the pressing member 106, and the second tooth structure 124 and the first tooth structure 122 are fitted to each other. During use of the headset, the second tooth structure 124 engages the first tooth structure 122 and transfers force between the knob 120 and the expression member 106. Thus, the user can rotate the pressing member 106 by rotating the knob 120, so that the rotating pressing member 106 moves under the guiding action of the first guiding thread 116 and the second guiding thread 118, so as to adjust the volume of the elastic member 108 protruding out of the surface of the head 102.

In addition, a second tooth structure 124 is located at an end of the extrusion 106 proximate to the knob 120, and the second guide thread 118 is located at an end of the extrusion 106 facing away from the knob 120. That is, the distribution of the second tooth structure 124 and the second guide screw 118 on the extrusion 106 is appropriately set, ensuring the driving and guiding of the extrusion 106.

As one possible implementation, as shown in fig. 5 and 7, extrusion 106 also includes a shaft 126. The two ends of the rotation shaft 126 are respectively connected to the body 112 and the head 102, and the knob 120 is disposed on the rotation shaft 126, thereby realizing rotatable connection of the knob 120.

As a possible embodiment, as shown in fig. 5 and 7, the knob 120 protrudes from the surface of the body 112, so as to protect the user from touching the knob 120, and the volume of the elastic member 108 protruding from the surface of the head 102 is adjusted by twisting the knob 120.

As one possible embodiment, as shown in fig. 13 and 14, the surface of the elastic member 108 is configured as a cambered surface 128. Thus, when the surface of the elastic member 108 is flush with the surface of the body 112 and the surface of the head 102, the arc surface 128 can be ensured to be connected with the surface of the body 112 and the surface of the head 102 and smoothly transited, so that the structural mutation at the joint of the body 112 and the head 102 is avoided, the integral structural coordination of the earphone is ensured, and the discomfort of a user when using the earphone is further ensured.

As one possible embodiment, as shown in fig. 13 and 14, the elastic member 108 may be an elastic sealing ring, and the elastic sealing ring is sleeved on the head 102. The elastic sealing ring has good elasticity, can be elastically deformed under the extrusion of the extrusion piece 106, and can recover the original shape when the extrusion piece 106 releases the elastic sealing ring. In addition, the elastic sealing ring can be used for sealing the interval 114 between the head 102 and the body 112, so that external dust and the like are prevented from entering the inside of the earphone, the cleanliness of the inside of the earphone is guaranteed, and the service life of the earphone is guaranteed. In an embodiment, as shown in fig. 13 and 14, the elastic member 108 may be a silicone ring.

As one possible embodiment, as shown in fig. 8, 9 and 10, the extrusion 106 may employ a metal ring, and the first guide screw 116 and the second tooth structure 124 are both provided on an inner wall of the metal ring. The metal ring has good strength and rigidity, is convenient for processing and preparing the first guide thread 116 and the second tooth structure 124, can ensure the extrusion strength of the elastic piece 108, and ensures the service life of the earphone. Specifically, extrusion 106 may employ a steel ring.

As a possible implementation manner, the earphone proposed in the embodiment of the present application may be a wired earphone or a wireless earphone, and may also be a TWS (True Wireless Stereo true wireless stereo) earphone.

The embodiment of the application provides electronic equipment, which comprises the earphone of the embodiment. Therefore, the above-mentioned earphone has all the beneficial effects, which are not discussed here.

Specifically, the electronic device may be a mobile phone, a tablet computer, or the like.

In a specific embodiment, consumers and markets have become increasingly more conscious of TWS headphones, on one hand, the TWS headphones benefit from being not only an accessory of electronic equipment such as a mobile phone, but also an independent intelligent terminal in the future, and the TWS headphones are more imaginative and have more development space than the electronic equipment such as the mobile phone. On the other hand, because the WS earphone is wireless, the WS earphone is smaller, tone quality is better than ordinary bluetooth earphone. However, the TWS earphone is of a fixed size, and the ears of the user are large and small, so that the earphone cannot be compatible with the requirements of different users. Thus, the present implementation proposes a solution that enables the size of the head 102 in the headset to be adjusted to fit different sized ears.

As shown in fig. 2 and fig. 3, the earphone provided in the embodiment of the present application includes: the body 112, the head 102, the elastic member 108, the adjustment member 104, the expression member 106, etc. As shown in fig. 3, 6 and 7, the elastic member 108 is retracted inside the earphone in its original state, flush with the exterior surface of the earphone. As shown in fig. 2, 4 and 5, when the user needs to adjust the size of the earphone outline to fit the ear, the user only needs to rotate the knob 120 of the adjusting member 104 to perform fine adjustment, so as to adjust the elastic member 108 to a shape protruding out of the surface of the head 102 until the elastic member 108 just can clamp the ear.

Specifically, as shown in fig. 5 and 7, when the knob 120 is rotated clockwise, since the first tooth structure 122 of the knob 120 is engaged with the second tooth structure 124 of the pressing member 106, the pressing member 106 rotates together with the knob 120, and the first guide screw 116 on the pressing member 106 moves leftward along the second guide screw 118 of the head 102 when rotating, so that the pressing member 106 can press the elastic member 108, and the elastic member 108 protrudes toward the surface of the head 102. The extrusion 106 has a bevel surface as the extrusion surface 110, which can control the extrusion degree of the elastic member 108, and the larger the extrusion volume of the elastic member 108 is, the more the elastic member 108 protrudes out of the surface of the head 102, thereby realizing the stepless adjustment function. Similarly, when the elastic member 108 is required to be adjusted to be smaller, the knob 120 is only rotated counterclockwise, so that the pressing member 106 moves to the right, the pressed volume of the elastic member 108 is reduced, and the elastic member 108 is retracted.

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

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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: many changes, modifications, substitutions and variations may 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, which is characterized in that,

the earphone comprises a head part, an adjusting piece, an extrusion piece, an elastic piece and a body;

the elastic piece is sleeved on the head;

the extrusion piece is arranged on the head part and is provided with an extrusion surface, and the extrusion surface is contacted with the elastic piece;

the body is connected with the head, and a space is reserved between the body and the head;

the adjusting piece is connected with the extrusion piece and can be used for driving the extrusion piece to move so as to extrude the elastic piece to protrude out of the surface of the head from the interval or release the elastic piece, so that the volume of the elastic piece protruding out of the surface of the head is adjusted.

2. The earphone of claim 1, wherein the earphone comprises a pair of earphone arms,

the head is provided with a sinking table, and the interval is formed between the side wall of the sinking table and the body;

the elastic piece is sleeved on the bottom wall of the sinking platform;

the extrusion part is provided with a part of the extrusion surface and stretches into the space between the elastic piece and the bottom wall of the sinking platform.

3. The earphone of claim 2, wherein the earphone comprises a pair of earphone arms,

the extrusion surface is an inclined surface, and the extrusion piece can move under the drive of the adjusting piece;

the extrusion piece is moved towards the side wall of the sinking platform, the extrusion piece extrudes the elastic piece, the extrusion piece is moved away from the side wall of the sinking platform, and the extrusion piece releases the elastic piece.

4. The earphone of claim 2, wherein the earphone comprises a pair of earphone arms,

the extrusion piece is provided with a first guide thread, the head part is provided with a second guide thread, and the first guide thread is meshed with the second guide thread;

the adjusting piece can drive the extrusion piece to rotate, so that the extrusion piece is close to or far away from the side wall of the sinking platform under the guiding action of the first guiding thread and the second guiding thread.

5. The earphone of claim 4, wherein the earphone comprises a pair of earphone body parts,

the first guide thread and the second guide thread are self-locking threads which are matched.

6. The earphone of claim 4, wherein the earphone comprises a pair of earphone body parts,

the extrusion piece comprises a knob, a first tooth structure is arranged on the knob, a second tooth structure is arranged on the extrusion piece, and the second tooth structure is meshed with the first tooth structure;

the second tooth structure is positioned at one end of the extrusion close to the knob, and the second guide thread is positioned at one end of the extrusion away from the knob;

7. The earphone of claim 6, wherein the earphone comprises a pair of earphone arms,

the extrusion further includes a shaft connected to the body and the head;

the knob is connected with the rotating shaft and protrudes out of the surface of the body.

8. The earphone according to any of claims 1 to 7, wherein,

the surface of the elastic piece is configured into an arc surface;

the elastic piece is positioned in the interval, and the cambered surface can be connected with the body and the head.

9. An electronic device, comprising:

the earphone of any one of claims 1 to 8.