Headset

Abstract

The utility model discloses a headphone, relates to the headphone technical field, the headphone comprises two earmuffs, a head beam and an elastic member connected between the two earmuffs, two earmuffs and a head beam connected between the two earmuffs, each earmuff comprises a housing, one end of the housing close to the head beam is provided with a connecting hole, and the other end of the housing close to the head beam is provided with an elastic member. The head beam is provided with a mounting end part which penetrates through the connecting hole and extends into the cover shell, a movable gap is formed between the mounting end part and the bottom wall of the cover shell, the elastic piece is arranged in the movable gap and comprises an inserting section and an abutting section which are connected, the cover shell is provided with an inserting groove for inserting the inserting section, and the abutting section abuts against the side, away from the head part, of the mounting end part; in the process that the lower end of one cover shell swings in the direction away from the other cover shell, the elastic potential energy of the elastic piece is increased. According to the technical scheme provided by the utility model, the earmuffs can be tightly attached to the head of a user, and the wearing comfort of the headphone is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, and particularly relates to a headphone. Background Art

[0002] The sound generating part of the headphone does not enter the ear, and has the advantages of good sound field, high comfort, and avoiding abrasion of the ear canal. In recent years, it has been loved by more and more people. At present, the two ear cups of the headphone on the market can swing freely closer or farther away on the head beam, and since the connecting part between the head beam and the ear cup is arranged close to the upper end of the ear cup, the lower end of the ear cup cannot fit well with the contour of the human head during use, and the use feeling is poor. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a headphone, aiming to enable the ear cup to fit closely to the user's head and improve the comfort of wearing the headphone.

[0004] To achieve the above purpose, the headphone provided by the utility model includes:

[0005] Two ear cups and a head beam connected between the two ear cups. The ear cup includes a housing, and the housing is provided with a connection hole at one end close to the head beam. The head beam has a mounting end passing through the connection hole and extending into the housing, and there is a movable gap between the mounting end and the bottom wall of the housing; and

[0006] An elastic member is arranged in the movable gap, and includes a plugging section and an abutting section connected to each other. The housing is provided with a slot for the plugging section to be plugged in, and the abutting section abuts against the side of the mounting end away from the head; during the swinging process of the lower end of one housing in the direction away from the other housing, the elastic potential energy of the elastic member increases.

[0007] In one embodiment, the plugging section extends in the thickness direction of the housing, and the abutting section extends in the up and down direction.

[0008] In one embodiment, the elastic member includes a spring piece, and the spring piece is bent to form the abutting section and the plugging section.

[0009] In one embodiment, the bottom wall of the housing is provided with a slot rib and a slot end plate arranged at intervals. The adjacent side walls of the slot rib and the slot end plate enclose the slot, and there is an avoidance gap between the top surface of the slot rib and the abutting section.

[0010] In one embodiment, the top end of the slot rib includes an avoidance inclined surface which is arranged on the side close to the connection hole and extends in the direction close to the connection hole while being inclined towards the bottom wall of the cover housing. The avoidance gap is formed between the avoidance inclined surface and the abutting plate.

[0011] In one embodiment, the head-mounted earphone further includes an abutting housing which is installed on the cover housing and covers a part of the structure of the installation end portion. During the swinging process of the lower end edge of the cover housing in the direction away from the other cover housing, the abutting housing abuts against the installation end portion, and the elastic potential energy of the elastic member increases.

[0012] In one embodiment, the installation end portion includes a connecting arm and a rotating ball. The rotating ball is arranged on the end face of the connecting arm. The connecting arm passes through the connection hole. A rotating seat and the abutting housing connected to the rotating seat are arranged in the cover housing. A rotating cavity is arranged between the rotating seat and the abutting housing. The rotating ball is clamped in the rotating cavity so that the cover housing can rotate around the axis of the connecting arm.

[0013] In one embodiment, a rotating concave surface is arranged on the side surface of the rotating seat close to the rotating ball. The rotating concave surface abuts against the rotating ball. The abutting housing includes a spherical cover portion which covers the rotating ball. The rotating concave surface and the spherical cover portion enclose the rotating cavity.

[0014] In one embodiment, the abutting section is arranged on the rotating seat and has a first arc surface section which abuts against the rotating ball. The axial direction of the first arc surface section extends along the front-back direction of the head. The arc surface of the first arc surface section is a part of the structure of the rotating concave surface.

[0015] In one embodiment, the abutting section includes a second arc surface section which abuts against the connecting arm. The axis of the second arc surface section is configured to be the same axis as the axis of the connecting arm.

[0016] In one embodiment, a limiting protrusion is arranged on the rotating ball. The abutting housing is provided with a limiting hole corresponding to the limiting protrusion. The limiting hole extends around the axis of the connecting arm. The limiting protrusion moves in the limiting hole and has a first position and a second position. At the first position, the limiting protrusion abuts against one end wall of the limiting hole. At the second position, the limiting protrusion abuts against the other end wall of the limiting hole.

[0017] After the user wears the headphone in the technical solution of the present utility model, the housing of the earcup is abutted by the head, so that the lower end of the housing has a tendency to swing away from the other housing. At this time, the clearance between the mounting end and the housing becomes narrower, and the elastic member is squeezed by the housing and the mounting end and has elastic potential energy. The elastic force of the elastic member causes the housing to have a tendency to swing towards the other housing, that is, the elastic force of the elastic member causes the housing to have a tendency to swing closer to the head, so that the lower end of the housing can closely adhere to the head, reduce the risk of sound leakage of the headphone, and improve the comfort of the user's wearing at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0019] Figure 1 Structural schematic diagram of an embodiment of the headphone provided by the present utility model;

[0020] Figure 2 is Figure 1 exploded view of the shown embodiment;

[0021] Figure 3 is Figure 1 partial cross-sectional view of the connection between the middle housing and the mounting end;

[0022] Figure 4 is Figure 1 partial schematic diagram of the middle housing.

[0023] Explanation of the reference numerals in the drawings:

[0024] 100, earcup; 11, housing; 12, connection hole; 13, slot; 131, slot rib; 132, slot end plate; 133, avoidance clearance; 134, avoidance inclined surface; 14, movement clearance; 15, rotating seat; 151, rotating cavity; 152, rotating concave surface; 153, seat housing;

[0025] 200, head beam; 21, mounting end; 211, connecting arm; 212, abutting groove; 213, rotating ball; 214, limiting protrusion; 22, wire passing channel;

[0026] 300, elastic member; 31, insertion section; 32, abutting section; 321, first arc section; 322, second arc section;

[0027] 400. Contact housing; 41. Ball cover part; 42. Limit hole.

[0028] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] The present utility model proposes a pair of head-mounted headphones.

[0033] Please refer to Figures 1 to 4 , in an embodiment of the present utility model, the head-mounted headphones include:

[0034] Two earcups 100 and a head beam 200 connected between the two earcups 100. The earcup 100 includes a housing 11. The housing 11 is provided with a connection hole 12 at one end close to the head beam 200. The head beam 200 has a mounting end 21 passing through the connection hole 12 and extending into the housing 11, and there is a movable gap 14 between the mounting end 21 and the bottom wall of the housing 11; and

[0035] The elastic member 300 is disposed in the movable gap 14 and includes a plugging section 31 and an abutting section 32 that are connected to each other. The housing 11 is provided with a slot 13 for plugging the plugging section 31, and the abutting section 32 abuts against the side of the mounting end 21 away from the head; during the swinging process of the lower end of one housing 11 in a direction away from the other housing 11, the elastic potential energy of the elastic member 300 increases.

[0036] After the headphone is worn by the user, the housing 11 of the headphone is abutted by the head, so that the lower end of the housing 11 has a tendency to swing in a direction away from the other housing 11. At this time, the movable gap 14 between the mounting end 21 and the housing 11 becomes narrower, and the elastic member 300 is squeezed by the housing 11 and the mounting end 21 and has elastic potential energy. The elastic force of the elastic member 300 causes the housing 11 to have a tendency to swing in a direction close to the other housing 11. That is, the elastic force of the elastic member 300 causes the housing 11 to have a tendency to swing close to the head, so that the lower end of the housing 11 can be closely attached to the head, reducing the risk of sound leakage of the headphone and improving the comfort of the user wearing the headphone at the same time.

[0037] Taking the orientation of the headphone after being worn on the head as a reference, the up-down direction of the headphone is the longitudinal direction of the human body, and the direction close to or facing the human face is the left-right direction. Assume Figure 3 If the single earcup shown is worn on the left ear, the lower end of the housing 11 of the earcup 100 swings around the mounting end 21 in a direction away from the human face, that is, the lower end of the housing 11 swings around the mounting end 21 to the left. The width direction of the elastic member 300 is the front-back direction of the head, so that the elastic member 300 can have elastic deformation in the left-right direction of the head and apply a pressure to the housing 11 and the mounting end 21 to cause the housing 11 to have a tendency to swing in a direction close to the other housing 11.

[0038] In one embodiment, the plugging section 31 extends in the thickness direction of the housing 11, and the abutting section 32 extends in the up-down direction. That is, the extending direction of the plugging section 31 intersects with the extending direction of the abutting section 32. When the movable gap 14 becomes narrower, the angle between the abutting section 32 and the plugging section 31 changes, so that the abutting section 32 and the plugging section 31 respectively apply pressure to the housing 11 and the mounting end 21. In other embodiments, it may also be that both the plugging section 31 and the abutting section 32 extend in the up-down direction and are inclined from the bottom wall of the housing 11 to the mounting end 21. When the movable gap 14 becomes narrower, the abutting section 32 and the plugging section 31 are bent to respectively apply pressure to the housing 11 and the mounting end 21.

[0039] In one embodiment, the elastic member 300 includes a spring piece, and the spring piece is bent to form an abutting section 32 and a plugging section 31. The processing and forming process of the spring piece is simple, which is convenient for production and has a low price. Moreover, configuring the elastic member 300 as a spring piece helps to increase the contact area between the elastic member 300 and the cover housing 11 and the mounting end portion 21, which helps to enhance the tendency of the cover housing 11 to swing towards the head, so as to improve the comfort of the user when wearing the head-mounted earphone. In other embodiments, the elastic member 300 may also include a torsion spring, and the abutting section 32 and the plugging section 31 are respectively formed at both ends of the torsion spring.

[0040] In one embodiment, the bottom wall of the cover housing 11 is provided with a slot rib 131 and a slot end plate 132 which are arranged at intervals. The adjacent side walls of the slot rib 131 and the slot end plate 132 enclose a slot 13. There is a clearance gap 133 between the top surface of the slot rib 131 and the abutting section 32. The slot rib 131 and the slot end plate 132 jointly clamp the plugging portion. Further, there are at least two slot ribs 131, and they are arranged at intervals in the front-back direction of the head, so as to stably clamp the plugging portion. And the slot rib 131 and the plugging plate protruding from the bottom wall of the cover housing 11 help to increase the contact area between the slot 13 and the plugging portion, and prevent the plugging portion from detaching from the cover housing 11 without increasing the thickness of the cover housing 11. The clearance gap 133 can avoid the movement track of the abutting section 32 when it undergoes elastic deformation. Further, the top of the slot rib 131 includes a clearance slope 134. The clearance slope 134 is arranged on the side close to the connection hole 12, and while extending towards the connection hole 12, it is inclined towards the bottom wall of the cover housing 11. The clearance gap 133 is formed between the clearance slope 134 and the abutting plate. It can be understood that the movement gap 14 is formed between the clearance slope 134 and the mounting end portion 21. When the movement gap 14 becomes narrower, the spring piece undergoes elastic deformation, and the abutting section 32 moves towards the top of the slot rib 131. The setting of the clearance slope 134 enables the abutting section 32 to have sufficient movement space, so that the spring piece has sufficient pressure on the mounting end portion 21 and the cover housing 11, so that the cover housing 11 fits the head. In other embodiments, the slot 13 may also be formed on the bottom wall of the cover housing 11, the clearance slope 134 is formed on the bottom wall of the cover housing 11 and is arranged on the side of the slot 13 close to the connection hole 12; or there is no clearance slope 134, and a clearance step surface is provided at the top of the slot rib 131, and the clearance gap 133 is formed between the clearance step surface and the abutting section 32.

[0041] In one embodiment, the headset further includes an abutting housing 400. The abutting housing 400 is installed on the cover housing 11 and covers a partial structure of the installation end portion 21. During the swinging process of the lower end of the cover housing 11 in a direction away from the other cover housing 11, the abutting housing 400 abuts against the installation end portion 21, and the elastic potential energy of the elastic member 300 increases. The abutting housing 400 can connect the installation end portion 21 and the cover housing 11. When the lower end of the cover housing 11 moves in a direction away from the other cover housing 11, the cover housing 11 has a tendency to rotate away from the other cover housing 11 relative to the installation end portion 21. During this process, the abutting housing 400 abuts against the installation end portion 21, and further causes the installation end portion 21 to abut against the elastic member 300. The cover housing 11 and the installation end portion 21 jointly squeeze the elastic member 300, so that the elastic member 300 undergoes elastic deformation, and the cover housing 11 has a tendency to move in a direction close to the other cover housing 11. In other embodiments, it may also be that the abutting housing 400 and the cover housing 11 are integrally formed and enclose an abutting through hole. The installation end portion 21 includes a separately provided rod segment and a disassembly and assembly sleeve. After the rod segment passes through the abutting through hole, the disassembly and assembly sleeve is installed on the end of the rod segment away from the connection hole 12, so as to connect the installation end portion 21 and the cover housing 11, and the elastic member 300 abuts against the rod portion.

[0042] In one embodiment, the installation end portion 21 includes a connecting arm 211 and a rotating ball 213. The rotating ball 213 is provided on the end face of the connecting arm 211. The connecting arm 211 passes through the connecting hole 12. A rotating seat 15 and an abutting housing 400 connected to the rotating seat 15 are provided in the cover housing 11. A rotating cavity 151 is provided between the rotating seat 15 and the abutting housing 400. The rotating ball 213 is clamped in the rotating cavity 151, so that the cover housing 11 can rotate around the axis of the connecting arm 211. The rotating seat 15 and the abutting housing 400 can preferably wrap the rotating ball 213 and cooperate with the connecting hole 12 to limit the position of the rotating ball 213 and the connecting arm 211 on the cover housing 11, so that during the process of the connecting arm 211 rotating around its own axis, the elastic member 300 can have a stable abutting relationship with the installation end portion 21. That is, the cover housing 11 can not only swing in a direction close to or away from the other cover housing 11, but also rotate around the axis of the connecting arm 211, so as to further strengthen the fitting of the earcup 100 to the head and enhance the comfort of the user wearing. Further, the abutting housing 400 covers the rotating seat 15 and the connecting arm 211 extending into the connecting hole 12, and is fixed to the inner wall of the cover housing 11 by screwing. In other embodiments, it may also be that there is no steering ball, that is, the cover housing 11 cannot rotate around the axis of the connecting arm 211.

[0043] In one embodiment, a rotation concave surface 152 is provided on the side of the rotation base 15 close to the rotation ball 213. The rotation concave surface 152 abuts against the rotation ball 213. The abutting housing 400 includes a spherical cover portion 41 which covers the rotation ball 213, and the rotation concave surface 152 and the spherical cover portion 41 enclose a rotation cavity 151. Since the arc surface structure of the rotation concave surface 152 and the arc surface structure of the inner wall of the spherical cover portion 41 are adapted to the rotation ball 213, the rotation ball 213 can smoothly rotate in the rotation cavity 151, preventing the rotation ball 213 from jumping relative to the cover housing 11 due to the collision of the sharp corners in the rotation cavity 151 when the cover housing 11 rotates around the axis of the connecting arm 211, and thus preventing the situation where the rotation of the cover housing 11 is unstable. In other embodiments, the rotation concave surface 152 and the spherical cover portion 41 may not be provided.

[0044] Further, the slot 13 is provided on the rotating seat 15. The rotating seat 15 includes a seat housing 153 composed of four side plates connected end to end. The slot end plate 132 is formed on a side plate of the rotating seat 15 away from the connection hole 12. The slot rib 131 is provided in the space enclosed by the four sides. Therefore, the abutting section 32 extends in the up and down direction on the rotating seat 15 and abuts against the connecting arm 211 and the rotating ball 213 respectively. Specifically, the abutting section 32 has a first arc surface section 321, the first arc surface section 321 abuts against the rotating ball 213, and the axis direction of the first arc surface section 321 extends along the front and back direction of the head. The arc surface of the first arc surface section 321 is part of the structure of the rotating concave surface 152. The abutting section 32 includes a second arc surface section 322 that abuts against the connecting arm 211. The axis of the second arc surface section 322 and the axis of the connecting arm 211 are arranged on the same axis. Further, the connecting arm 211 is provided with an abutting groove 212 corresponding to the second arc surface section 322. The second arc surface section 322 abuts against the bottom wall of the abutting groove 212. The abutting groove 212 is arranged around the circumference of the connecting arm 211. Since when the cover housing 11 swings in the direction of approaching or moving away from another cover housing 11, the cover housing 11 rotates relative to the rotating ball 213 about the first axis, and the first axis extends along the front and back direction of the head. It can be understood that the first axis and the axis of the first arc surface section 321 are arranged as axes extending in the same direction. Therefore, the setting of the first arc surface section 321 helps to improve the smoothness of the rotation of the cover housing 11. And when the second arc surface section 322 is squeezed by the connecting arm 211, the first arc surface section 321 is easy to move in the direction of approaching the avoiding inclined surface 134. At this time, the radian of the first arc surface section 321 decreases and the elastic potential energy increases. The second arc surface section 322 has a pressure on the connecting arm 211 and the inserting section 31 has a pressure on the cover housing 11, so that the cover housing 11 has a tendency to swing in the direction of approaching another cover housing 11. At the same time, the first arc surface section 321 can elastically abut against the rotating ball 213 to press the rotating ball 213 towards the ball cover part 41, so that when the cover housing 11 rotates relative to the rotating ball 213, the position of the rotating ball 213 in the rotating cavity 151 can be relatively fixed to improve the stability of the rotation of the cover housing 11. The setting of the second arc surface section 322 can increase the contact area between the elastic piece and the connecting arm 211, which helps to enhance the stability of the abutment between the elastic piece and the connecting arm 211. And when the cover housing 11 rotates about the axis of the connecting arm 211, that is, when the connecting arm 211 rotates along its own axis in the cover housing 11, the second arc surface section 322 can still maintain a stable abutting relationship with the connecting wall. The abutting groove 212 can indicate the abutting position of the second arc surface section 322 and the connecting arm 211. In other embodiments, it may also be that the abutting section 32 does not have the first arc surface section 321 and the second arc surface section 322, that is, the abutting section 32 is a straight plate section and extends obliquely towards the side close to the connection hole 12 in the up and down direction to abut against the rotating ball 213 and the connecting arm 211 respectively.

[0045] In one embodiment, a limiting protrusion 214 is provided on the rotating ball 213. A limiting hole 42 corresponding to the limiting protrusion 214 is provided on the abutting housing 400. The limiting hole 42 extends around the axis of the connecting arm 211. The limiting protrusion 214 moves within the limiting hole 42 and has a first position and a second position. In the first position, the limiting protrusion 214 abuts against one end wall of the limiting hole 42. In the second position, the limiting protrusion 214 abuts against the other end wall of the limiting hole 42 to limit the rotation angle when the cover body rotates around the axis of the connecting arm 211. Since in a head-mounted earphone, two earphones are electrically connected by a wire, the head beam 200 is provided with a wire passing channel 22. The wire passing channel 22 penetrates through both ends of the head beam 200. The wire passes through the wire passing channel 22 to electrically connect the electrical functional components in the two cover housings 11. The arrangement of the limiting hole 42 and the limiting protrusion 214 can prevent the cover housing 11 from rotating excessively around the axis of the connecting arm 211, avoiding the wire in the wire passing channel 22 from being disconnected from the electrical functional components in the cover housing 11 or being twisted off due to excessive rotation, so as to play a role in protecting the wire. In other embodiments, it may also be that separate power interfaces and matching wireless communication modules are provided in the two ear cups 100 of the head-mounted earphone. In this case, the limiting protrusion 214 and the limiting hole 42 may not be provided.

[0046] The above description is only an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A head-mounted earphone, characterized in that, Comprising: Two earcups and a headband connected between the two earcups. The earcup includes a housing shell. The housing shell is provided with a connection hole at one end close to the headband. The headband has a mounting end passing through the connection hole and extending into the housing shell, and there is a movable gap between the mounting end and the bottom wall of the housing shell; and An elastic member is arranged in the movable gap and includes a plugging section and an abutting section connected to each other. The housing shell is provided with a slot for the plugging section to be plugged into. The abutting section abuts against the side of the mounting end away from the head; during the swinging process of the lower end of one housing shell in the direction away from the other housing shell, the elastic potential energy of the elastic member increases; The bottom wall of the housing shell is provided with spaced slot ribs and slot end plates. The slot ribs and the adjacent side walls of the slot end plates enclose the slot. There is a clearance gap between the top surface of the slot rib and the abutting section.

2. The headphone according to claim 1, characterized in that, The plugging section extends in the thickness direction of the housing shell, and the abutting section extends in the up-and-down direction.

3. The headphone according to claim 2, wherein, The elastic member includes a spring piece, and the spring piece is bent to form the abutting section and the plugging section.

4. The head-mounted earphone according to claim 1, wherein, The top end of the slot rib includes an avoidance inclined surface. The avoidance inclined surface is arranged on the side close to the connection hole and extends in the direction close to the connection hole while being inclined in the direction close to the bottom wall of the housing shell. The clearance gap is formed between the avoidance inclined surface and the abutting section.

5. The headset according to claim 2, characterized in that, The headphone further includes an abutting housing. The abutting housing is installed on the housing shell and covers a part of the structure of the mounting end. During the swinging process of the lower end of the housing shell in the direction away from the other housing shell, the abutting housing abuts against the mounting end, and the elastic potential energy of the elastic member increases.

6. The headphone according to claim 5, characterized in that, The mounting end includes a connecting arm and a rotating ball. The rotating ball is arranged on the end face of the connecting arm. The connecting arm passes through the connection hole. A rotating seat and the abutting housing connected to the rotating seat are arranged in the housing shell. A rotating cavity is arranged between the rotating seat and the abutting housing. The rotating ball is clamped in the rotating cavity so that the housing shell can rotate around the axis of the connecting arm.

7. The head-mounted earphone according to claim 6, characterized in that, The side surface of the rotating seat close to the rotating ball is provided with a rotating concave surface. The rotating concave surface abuts against the rotating ball. The abutting housing includes a spherical cover part. The spherical cover part covers the rotating ball. The rotating concave surface and the spherical cover part enclose the rotating cavity.

8. The headphone according to claim 7, wherein The abutting section is arranged on the rotating seat and has a first arc section. The first arc section abuts against the rotating ball, and the axis direction of the first arc section extends along the front-back direction of the head. The arc surface of the first arc section is a part of the structure of the rotating concave surface; And / or, the abutting section includes a second arc section abutting against the connecting arm, and the axis of the second arc section is configured to be the same axis as the axis of the connecting arm.

9. The head-mounted earphone according to claim 6, wherein, The rotating ball is provided with a limiting protrusion, and the abutting housing is provided with a limiting hole corresponding to the limiting protrusion. The limiting hole extends around the axis of the connecting arm. The limiting protrusion moves within the limiting hole and has a first position and a second position. At the first position, the limiting protrusion abuts against one end wall of the limiting hole, and at the second position, the limiting protrusion abuts against the other end wall of the limiting hole.

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