Headphones

Abstract

The application discloses a headphone, which comprises a headphone head beam and an ear cover assembly mounted on the headphone head beam; the ear cover assembly comprises an upper shell connected with the headphone head beam, a middle shell connected with the upper shell, a lower shell connected with the middle shell, a loudspeaker located between the middle shell and the lower shell, and a flexible cover bonded to a side of the lower shell away from the middle shell; the lower shell is provided with a sound outlet hole corresponding to the loudspeaker; the lower shell is provided with a clamping groove, and the flexible cover is provided with a clamping protrusion clamped in the clamping groove. The flexible cover is clamped in the clamping groove of the lower shell through the clamping protrusion, is fixedly mounted on the lower shell, and the stability of the flexible cover in the mounting is ensured. Meanwhile, glue is applied between the flexible cover and the lower shell, the glue or a glue strip fills the gap between the flexible cover and the lower shell after the glue is applied, the ear, the flexible cover and the lower shell form a relatively closed space when the flexible cover contacts the ear, and the noise reduction effect of the headphone is improved.

Description

Technical Field

[0001] This application relates to the field of headphones, and more particularly to a type of over-ear headphone. Background Technology

[0002] Existing over-ear noise-canceling headphones use flexible earcups that come into contact with the user's ears, and these earcups are connected to the headphone shell using snap-fit ​​fasteners. While this snap-fit ​​connection allows the flexible earcups to be securely mounted to the shell, it doesn't provide a good seal, resulting in poor noise cancellation for the headphones. Summary of the Invention

[0003] The purpose of this application is to provide a headset that addresses the problem in the prior art where poor sealing between the flexible cover and the shell leads to poor noise reduction performance.

[0004] To achieve this objective, the embodiments of this application adopt the following technical solutions:

[0005] A pair of headphones includes a headband and an earcup assembly mounted on the headband. The earcup assembly includes an upper shell connected to the headband, a middle shell connected to the upper shell, a lower shell connected to the middle shell, a speaker located between the middle shell and the lower shell, and a flexible cover bonded to the lower shell on the side away from the middle shell. The lower shell has a sound outlet corresponding to the speaker. The lower shell has a snap-fit ​​groove, and the flexible cover has a snap-fit ​​protrusion that snaps into the snap-fit ​​groove.

[0006] In one embodiment, the earcup assembly further includes a battery component disposed between the upper shell and the middle shell; one side surface of the battery component abuts against the middle shell; the other side surface of the battery component abuts against the upper shell; the middle shell is provided with a plurality of first snap-fit ​​posts, and the upper shell is provided with second snap-fit ​​posts corresponding one-to-one with the first snap-fit ​​posts.

[0007] In one embodiment, the earcup assembly further includes a sealing cover located between the middle shell and the lower shell; the sealing cover and the lower shell enclose a tuning cavity; the speaker is located within the tuning cavity; the sealing cover has a top plate opposite to the speaker, and a connecting ring disposed along the edge of the top plate; the connecting ring surrounds the speaker; the connecting ring abuts against the lower shell; and a tuning hole is provided on the connecting ring.

[0008] In one embodiment, a limiting ring is provided on the lower shell, and the limiting ring is arranged around the connecting ring; there is a gap between the limiting ring and the connecting ring.

[0009] In one embodiment, the headband of the headphones includes a steel bar, two headband plastic parts respectively installed at opposite ends of the steel bar, a sliding frame slidably installed on the headband plastic parts and having a rotating cylinder, a rotating connecting block rotatably installed on the rotating cylinder, and a hanging bracket fixedly connected to the rotating connecting block; the upper shell is connected to the hanging bracket.

[0010] In one embodiment, the rotating connecting block has a first rotating through hole, the rotating cylinder passes through the first rotating through hole, a limiting groove is formed on the surface of the rotating cylinder, and a clamping member is installed in the limiting groove; the clamping member is located on the side of the first rotating through hole away from the sliding frame; the maximum width of the clamping member is greater than the maximum width of the first rotating through hole.

[0011] In one embodiment, the rotating connecting block has a first rotating platform and a second rotating platform that is opposite to and spaced apart from the first rotating platform; the first rotating through hole is formed on the first rotating platform; the clamping member is located between the first rotating platform and the second rotating platform; the clamping member is a clamping ring with an opening, and the clamping ring is sleeved on the rotating cylinder in the limiting groove; the clamping ring is provided with at least one positioning piece, and there is an included angle between the positioning piece and the clamping ring; the positioning piece abuts against the second rotating platform.

[0012] In one embodiment, a second rotating through hole is provided on the second rotating platform; the rotating connecting block has an abutment platform that is opposite to and spaced apart from the second rotating platform; the abutment platform is located on the side of the second rotating platform away from the first rotating platform; the rotating cylinder passes through the second rotating through hole and abuts against the abutment platform.

[0013] In one embodiment, one end of the headband plastic component is provided with a pressing structure, and the other end of the headband plastic component is provided with a fixing platform; the steel strip is inserted between the pressing structure and the headband plastic component, and the steel strip is fixedly connected to the fixing platform.

[0014] In one embodiment, the pressing structure includes two pressing plates that are opposite to each other and spaced apart, a pressing gap is formed between the pressing plates and the head beam plastic part, and the steel strip is inserted into the pressing gap.

[0015] In one embodiment, the edge of the steel bar is provided with a clearance notch adapted to the pressure plate; the head beam plastic part is also provided with a thrust ramp adapted to the clearance notch, the thrust ramp being located on the side of the pressure plate away from the fixed platform.

[0016] In one embodiment, a fixing threaded hole is provided on the fixing platform, a fixing through hole is provided on the steel bar, and a connecting screw is provided between the fixing platform and the steel bar. The connecting screw passes through the fixing through hole and is threadedly connected to the fixing threaded hole.

[0017] In one embodiment, the fixing platform has a contact slope, the fixing threaded hole is formed on the contact slope, the steel bar is provided with a fixing inclined plate adapted to the contact slope, and the fixing through hole is formed on the fixing inclined plate.

[0018] In one embodiment, the head beam plastic part is further provided with a limiting platform, and the pressing structure is located between the limiting platform and the fixing platform; the end of the steel bar abuts against the limiting platform.

[0019] In one embodiment, a sealing ring is fitted onto the rotating cylinder, and the sealing ring abuts against the inner wall of the first rotating through hole.

[0020] The beneficial effects of this embodiment are as follows: The flexible cover is secured to the lower shell by snapping into the snap-fit ​​groove via a snap-fit ​​protrusion, ensuring the stability of the flexible cover's installation. Simultaneously, adhesive is applied between the flexible cover and the lower shell; for example, the adhesive can be applied at the contact point between the snap-fit ​​protrusion and the snap-fit ​​groove, or at the edge of the contact point. This further enhances the stability of the connection between the flexible cover and the lower shell. After applying the adhesive, the glue or adhesive strip fills the gap between the flexible cover and the lower shell. When the flexible cover contacts the ear, the ear, the flexible cover, and the lower shell form a relatively enclosed space, making it difficult for external noise to enter, thus improving the noise cancellation effect of the headphones. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the headphones in the embodiments of this application;

[0023] Figure 2 This is an exploded view of the earcup assembly in an embodiment of this application;

[0024] Figure 3 This is a cross-sectional view of the earcup assembly in an embodiment of this application;

[0025] Figure 4 This is an exploded view of the internal structure of the earcup assembly in an embodiment of this application;

[0026] Figure 5 This is a bottom view of the upper shell in an embodiment of this application;

[0027] Figure 6 This is a cross-sectional view of the headband of the headphones in an embodiment of this application;

[0028] Figure 7 This is an exploded view of the headphone headband in an embodiment of this application;

[0029] Figure 8 This is a partial structural diagram of the headphone headband in an embodiment of this application;

[0030] Figure 9 This is an exploded view of a portion of the headphone headband structure in an embodiment of this application;

[0031] Figure 10 This is a cross-sectional view of a partial structure of the headphone headband in an embodiment of this application;

[0032] Figure 11 This is a schematic diagram of the rotating connecting block in an embodiment of this application;

[0033] Figure 12 This is a schematic diagram of the connection between the steel bar and the head beam plastic component in an embodiment of this application;

[0034] Figure 13 for Figure 12 An exploded view of the structural schematic diagram in the diagram;

[0035] In the picture:

[0036] 1. Headphone headband;

[0037] 11. Steel bar; 111. Clearance notch; 112. Fixing through hole; 113. Fixing inclined plate;

[0038] 12. Head beam plastic parts; 121. Pressing structure; 1211. Pressing plate; 122. Fixing platform; 1221. Fixing threaded hole; 1222. Contact slope; 123. Pressing gap; 124. Thrust ramp; 125. Limiting platform;

[0039] 13. Sliding frame; 131. Rotating cylinder; 1311. Limiting groove;

[0040] 14. Rotary connecting block; 141. First rotating platform; 1411. First rotating through hole; 142. Second rotating platform; 1421. Second rotating through hole; 1422. Positioning groove; 143. Abutment platform;

[0041] 15. Hanging rack;

[0042] 16. Clamping component; 161. Clamping ring; 162. Opening; 163. Positioning piece;

[0043] 17. Sealing ring;

[0044] 18. Sponge components;

[0045] 19. Leather case;

[0046] 2. Earcup assembly;

[0047] 21. Upper shell; 211. Second snap-fit ​​post;

[0048] 22. Middle shell; 221. First snap-fit ​​post;

[0049] 23. Lower shell; 231. Sound outlet; 232. Snap-fit ​​groove; 233. Limiting ring;

[0050] 24. Loudspeaker;

[0051] 25. Flexible cover; 251. Snap-fit ​​protrusion;

[0052] 26. Battery components;

[0053] 27. Sealing cap; 271. Top plate; 272. Connecting ring; 2721. Tuning hole;

[0054] 3. Tuning cavity. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0056] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0057] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] The implementation of this application will be described in detail below with reference to specific embodiments.

[0060] like Figures 1-3 As shown, this application embodiment proposes a headset, including a headband 1 and an earcup assembly 2 mounted on the headband 1; the earcup assembly 2 includes an upper shell 21 connected to the headband 1, a middle shell 22 connected to the upper shell 21, a lower shell 23 connected to the middle shell 22, a speaker 24 located between the middle shell 22 and the lower shell 23, and a flexible cover 25 bonded to the side of the lower shell 23 away from the middle shell 22; the lower shell 23 has a sound outlet 231 corresponding to the speaker 24; the lower shell 23 has a snap-fit ​​groove 232, and the flexible cover 25 has a snap-fit ​​protrusion 251 snap-fitted into the snap-fit ​​groove 232.

[0061] In the embodiments of this application, the flexible cover 25 is a component of the earphone used to cover the ear. It has a certain deformation capability, thereby achieving a close and soft fit with the ear, ensuring the comfort of wearing the earphone, and also preventing noise from passing through the gap between the ear and the flexible component, thus affecting the noise reduction effect of the earphone. The flexible cover 25 is snapped into the snap-fit ​​groove 232 of the lower shell 23 by snap-fit ​​protrusion 251, thereby achieving a fixed installation on the lower shell 23 and ensuring the stability of the installation of the flexible cover 25. At the same time, glue is applied between the flexible cover 25 and the lower shell 23. For example, the glue can be applied at the contact point between the snap-fit ​​protrusion 251 and the snap-fit ​​groove 232, or at the edge of the contact point. In order to further improve the stability of the connection between the flexible cover 25 and the lower shell 23, after the glue is applied, the glue or glue strip fills the gap between the flexible cover 25 and the lower shell 23. When the flexible cover 25 is in contact with the ear, the ear, the flexible cover 25, and the lower shell 23 form a relatively closed space, making it difficult for external noise to enter, thereby improving the noise reduction effect of the earphone.

[0062] Please see Figures 2-3 and Figure 5 As another specific embodiment of the over-ear headphones provided in this application, the earcup assembly 2 also includes a battery component 26 disposed between the upper shell 21 and the middle shell 22; one side surface of the battery component 26 abuts against the middle shell 22; the other side surface of the battery component 26 abuts against the upper shell 21; the middle shell 22 is provided with a plurality of first locking posts 221, and the upper shell 21 is provided with second locking posts 211 corresponding to the first locking posts 221 one by one.

[0063] The battery component 26 has a front side that abuts against the middle shell 22, a back side that abuts against the upper shell 21, and a side side that connects the front and the back side; the side side includes a first side side, a second side side, a third side side, and a fourth side side connected in sequence; the middle shell 22 is provided with a plurality of first locking posts 221; the plurality of first locking posts 221 abut against the second side side and the fourth side side respectively; the upper shell 21 is provided with a second locking post 211 that corresponds to and engages with the first locking posts 221.

[0064] The lower shell 23 and the middle shell 22 enclose a sound cavity, within which the speaker 24 is installed. The gap between the upper shell 21 and the middle shell 22 is used to install the battery component 26, thus placing the battery component 26 outside the sound cavity and minimizing its impact on the cavity's structure. This ensures a smooth internal structure, simplifying acoustic tuning and facilitating optimal sound quality. The headphones also include a noise-canceling microphone; the smooth internal structure of the sound cavity allows for more precise noise-canceling adjustments.

[0065] The battery component 26 is located between the middle shell 22 and the upper shell 21. Since the middle shell 22 and the upper shell 21 are engaged by the first snap-fit ​​post 221 and the second snap-fit ​​post 211, they can be easily disassembled and assembled, thus facilitating the replacement and maintenance of the battery component 26. At the same time, the first snap-fit ​​post 221, as a connector, can also work with the upper shell 21 and the middle shell 22 to limit the position of the battery component 26, so that the front, back, second side and fourth side of the battery component 26 have limiting structures, making it difficult to loosen during use.

[0066] Please see Figures 3-4 As another specific embodiment of the headphones provided in this application, the earcup assembly 2 further includes a sealing cover 27 located between the middle shell 22 and the lower shell 23; the sealing cover 27 and the lower shell 23 enclose a tuning cavity 3; the speaker 24 is located inside the tuning cavity 3; the sealing cover 27 has a top plate 271 opposite to the speaker 24, and a connecting ring 272 disposed along the edge of the top plate 271; the connecting ring 272 is disposed around the speaker 24; the connecting ring 272 abuts against the lower shell 23; a tuning hole 2721 is provided on the connecting ring 272.

[0067] The top plate 271 of the sealing cover 27 is positioned opposite to the speaker 24, and the connecting ring 272 of the sealing cover 27 surrounds the speaker 24, with a tuning hole 2721 provided on the connecting ring 272. Therefore, during tuning, the tuning hole 2721 is located on the side of the speaker 24. When the speaker 24 is working in the tuning state, the airflow will not directly enter and exit the tuning cavity 3 formed by the sealing cover 27 and the lower shell 23 through the position of the top plate 271, but will enter and exit the tuning cavity 3 through the tuning hole 2721 on the opposite side of the speaker 24. Therefore, the speed of airflow in and out is not easily too fast, and the air pressure in the tuning cavity 3 is not easily changed rapidly, which can reduce the difficulty of tuning.

[0068] The top plate 271 is a circular plate and the connecting ring 272 is a circular ring, so that the surface of the inner wall of the cavity enclosed between the sealing cover 27 and the lower shell 23 is arc-shaped, which facilitates tuning and can improve the sound effect provided by the speaker 24 when it is working.

[0069] The ratio of the length of the tuning hole 2721 to the circumference of the connecting ring 272 is between 0.15 and 0.3. Therefore, the air outlet area of ​​the tuning hole 2721 is large enough to allow airflow to pass through in a timely manner, preventing excessive gas in the sealing cover 27 from increasing the air pressure; it also prevents excessive air outlet area from causing gas to flow out of the sealing cover 27 instantaneously, resulting in excessive instantaneous changes in air pressure.

[0070] Please see Figures 3-4 As another specific embodiment of the headphones provided in this application, a limiting ring 233 is provided on the lower shell 23, and the limiting ring 233 is arranged around the connecting ring 272; there is a gap between the limiting ring 233 and the connecting ring 272. The gap between the limiting ring 233 and the connecting ring 272 can serve as a buffer space for airflow, further preventing excessive airflow velocity from affecting the sound tuning effect.

[0071] Please see Figures 6-7 As another specific embodiment of the headphones provided in this application, the headband 1 includes a steel bar 11, two headband plastic parts 12 respectively installed at opposite ends of the steel bar 11, a sliding frame 13 slidably installed on the headband plastic parts 12 and having a rotating cylinder 131, a rotating connecting block 14 rotatably installed on the rotating cylinder 131, and a hanging bracket 15 fixedly connected to the rotating connecting block 14; the upper shell 21 is connected to the hanging bracket 15. The sliding frame 13 can slide relative to the headband plastic parts 12, thereby adjusting the length of the headband 1. Elastic components such as bent steel sheets can be provided between the sliding frame 13 and the headband plastic parts 12 to achieve a relatively stable state relative to the headband plastic parts 12 when no external force is applied. The earcup assembly 2 is connected to the hanging bracket 15 through the upper shell 21, which can be a rotatable connection, and the earcup assembly 2 can rotate a certain angle relative to the hanging bracket 15. Meanwhile, the hanger 15 is rotatably mounted on the rotating cylinder 131 of the sliding frame 13 via the rotating connecting block 14. The hanger 15 can rotate relative to the sliding frame 13, so the earmuff assembly 2 can also rotate with the hanger 15.

[0072] Please see Figures 8-11As another specific embodiment of the over-ear headphones provided in this application, the rotating connecting block 14 has a first rotating through hole 1411, the rotating cylinder 131 passes through the first rotating through hole 1411, the surface of the rotating cylinder 131 has a limiting groove 1311, and a clamping member 16 is installed in the limiting groove 1311; the clamping member 16 is located on the side of the first rotating through hole 1411 away from the sliding frame 13; the maximum width of the clamping member 16 is greater than the maximum width of the first rotating through hole 1411 (for example, when it is a round hole, the width is the inner diameter; for other shapes of holes, it is the longest distance between two points perpendicular to the axis direction).

[0073] The rotating cylinder 131 on the sliding frame 13 is inserted into the first rotating through hole 1411 on the rotating connecting block 14, and the rotating cylinder 131 passes through the first rotating through hole 1411. A limiting groove 1311 is formed at the position where the rotating cylinder 131 protrudes from the first rotating through hole 1411, and the clamping member 16 is clamped and installed in the limiting groove 1311. Since the maximum width of the clamping member 16 is greater than the maximum width of the first rotating through hole 1411, the rotating cylinder 131 is not easy to move along the depth direction of the first rotating through hole 1411 (the clamping member 16 cannot enter and pass through the first rotating through hole 1411), which ensures that the rotating connecting block 14 can be rotated and installed relatively stably on the rotating cylinder 131. Since the bracket 15 is fixedly connected to the rotating connecting block 14, the bracket 15 indirectly achieves a relatively stable rotational installation on the rotating cylinder 131.

[0074] The rotating connecting block 14 can be a glass fiber reinforced nylon block with a high surface smoothness. When rotating, it exerts less friction on the rotating cylinder 131, making rotation easier and less prone to wear by the rotating cylinder 131.

[0075] Please see Figure 9 and Figure 11As another specific embodiment of the over-ear headphones provided in this application, the rotating connecting block 14 has a first rotating platform 141 and a second rotating platform 142 that is opposite to and spaced apart from the first rotating platform 141; a first rotating through hole 1411 is formed on the first rotating platform 141; a clamping member 16 is located between the first rotating platform 141 and the second rotating platform 142; that is, the first rotating platform 141 can cooperate with the second rotating platform 142 to position the clamping member 16 between the two, and the clamping member 16 is not easily detached from the rotating cylinder 131. The clamping member 16 is a clamping ring 161 with an opening 162, and the clamping ring 161 is sleeved on the rotating cylinder 131 in the limiting groove 1311; at least one positioning piece 163 is provided on the clamping ring 161, and there is an included angle between the positioning piece 163 and the clamping ring 161; the positioning piece 163 abuts against the second rotating platform 142. The clamping ring 161 is a stainless steel spring with a certain elasticity. The rotating cylinder 131 enters the clamping chamber through the opening 162. The clamping ring 161 is sleeved on the rotating cylinder 131 according to its own elastic force and clamps the rotating cylinder 131.

[0076] The clamping ring 161 is provided with at least one positioning piece 163, and there is an included angle between the positioning piece 163 and the clamping ring 161. The positioning piece 163 abuts against the second rotating table 142, so the second rotating table 142 can limit the positioning piece 163 and the clamping ring 161 in the radial direction of the rotating cylinder 131. When the rotating cylinder 131 rotates, it is not easy for the clamping ring 161 to loosen.

[0077] The second rotating platform 142 is provided with a positioning groove 1422; the positioning piece 163 is located in the positioning groove 1422; the positioning piece 163 and the clamping ring 161 are perpendicular to each other, which further ensures the stability of the installation of the positioning piece 163 and the clamping ring 161, and the clamping ring 161 is not easily loosened when the rotating cylinder 131 rotates.

[0078] There are two positioning pieces 163, which are arranged opposite to each other and spaced apart. The second rotating table 142 can position the clamping ring 161 through the two positioning pieces 163 that are arranged opposite to each other and spaced apart. The clamping ring 161 is subjected to symmetrical forces on both sides and is not easy to deflect.

[0079] Please see Figure 11 As another specific embodiment of the headphones provided in this application, the second rotating platform 142 is provided with a second rotating through hole 1421; the rotating connecting block 14 has an abutment platform 143 that is opposite to and spaced apart from the second rotating platform 142; the abutment platform 143 is located on the side of the second rotating platform 142 away from the first rotating platform 141; the rotating cylinder 131 passes through the second rotating through hole 1421 and abuts against the abutment platform 143.

[0080] The first rotating platform 141 and the second rotating platform 142 provide good support for the rotating cylinder 131, improving the stability of the rotating cylinder 131 mounted on the rotating connecting block 14, and further enhancing the strength of the rotating connection between the rotating connecting block 14 and the rotating cylinder 131. The rotating cylinder 131 passes through the second rotating through hole 1421 and abuts against the abutment platform 143, making the position of the end of the rotating cylinder 131 relatively fixed. Therefore, the position of the rotating cylinder 131 relative to the first rotating platform 141 and the second rotating platform 142 is also relatively fixed. For example, when a sealing ring 17 is fitted on the rotating cylinder 131, the sealing ring 17 can stably contact the inner wall of the first rotating through hole 1411.

[0081] The abutment platform 143 is provided with an abutment groove, and the rotating cylinder 131 abuts against the abutment platform 143 in the abutment groove. In addition to limiting the end face of the rotating cylinder 131, the side surface of the rotating cylinder 131 is also limited, so as to ensure that the position of the rotating cylinder 131 relative to the first rotating platform 141 and the second rotating platform 142 is relatively fixed.

[0082] A sealing ring 17 is fitted on the rotating cylinder 131, and the sealing ring 17 abuts against the inner wall of the first rotating through hole 1411.

[0083] Please see Figures 12-13 As another specific embodiment of the headphones provided in this application, one end of the headband plastic part 12 is provided with a pressing structure 121, and the other end of the headband plastic part 12 is provided with a fixing platform 122; a steel strip 11 is inserted between the pressing structure 121 and the headband plastic part 12, and the steel strip 11 is fixedly connected to the fixing platform 122.

[0084] The pressing structure 121 at one end of the head beam plastic component 12 presses and positions one part of the steel strip 11, while the fixing platform 122 at the other end of the head beam plastic component 12 is fixedly connected to the steel strip 11, fixing and positioning another part of the steel strip 11. Therefore, the pressing structure 121 and the fixing platform 122, which have gaps between them, cooperate to position the steel strip 11 at different locations. Furthermore, the pressing structure 121, in conjunction with the fixing platform 122, prevents the steel strip 11 from bending. Thus, the steel strip 11 can achieve a relatively stable connection with the head beam plastic component 12, and is not easily loosened during use.

[0085] Please see Figures 12-13As another specific embodiment of the headphones provided in this application, the holding structure 121 includes two opposing and spaced-apart holding plates 1211. A holding gap 123 is formed between the holding plates 1211 and the headband plastic part 12, and a steel strip 11 is inserted into the holding gap 123. During assembly, the end of the steel strip 11 is inserted into the gap between the holding plate 1211 and the headband plastic part 12, and the holding plate 1211 presses the steel strip 11 down. Therefore, the end of the steel strip 11 is not easy to bend. Combined with the fixed connection of the fixing platform 122, the stability of the connection between the steel strip 11 and the headband plastic part 12 can be guaranteed.

[0086] Please see Figures 12-13 As another specific embodiment of the headphones provided in this application, the edge of the steel strip 11 is provided with a clearance notch 111 adapted to the pressure plate 1211; the headband plastic part 12 is also provided with a thrust ramp 124 adapted to the clearance notch 111, and the thrust ramp 124 is located on the side of the pressure plate 1211 away from the fixed platform 122.

[0087] During assembly, the clearance notch 111 of the steel bar 11 is aligned with the pressure plate 1211, allowing the steel bar 11 to pass through the pressure plate 1211 in a direction perpendicular to the head beam plastic part 12 until the steel bar 11 reaches the pressure gap 123 formed between the pressure plate 1211 and the head beam plastic part 12. Then, the steel bar 11 moves in a direction parallel to the head beam plastic part 12 and inserts into the pressure gap 123, so that the steel bar 11 is pressed between the pressure plate 1211 and the head beam plastic part 12, ensuring the convenience of operation during assembly and the accuracy of the position of the steel bar 11 relative to the head beam plastic part 12.

[0088] The steel bar 11 reaches the clamping gap 123 formed between the clamping plate 1211 and the head beam plastic part 12. Then the steel bar 11 moves along a direction parallel to the head beam plastic part 12 and inserts into the clamping gap 123. After moving a certain distance, the steel bar 11 passes through the thrust ramp 124 along the inclined surface of the thrust ramp 124. Then the thrust ramp 124 is inserted into the clearance notch 111, which in turn works with the clamping plate 1211 and the fixing platform 122 to limit the steel bar 11, further improving the stability of the connection between the steel bar 11 and the head beam plastic part 12.

[0089] One of the pressure plates 1211 has a relief groove on its surface facing the other pressure plate 1211, that is, the end face of the pressure plate 1211 has a groove structure. The relief notch 111 of the steel strip 11 is aligned with the pressure plate 1211. When the steel strip 11 passes through the pressure plate 1211 in a direction perpendicular to the head beam plastic part 12, the end of the pressure plate 1211 is not easily affected by the manufacturing tolerance of the steel strip 11.

[0090] Please see Figures 12-13In another specific embodiment of the headset provided in this application, the fixing platform 122 has a fixing threaded hole 1221, and the steel strip 11 has a fixing through hole 112. A connecting screw is provided between the fixing platform 122 and the steel strip 11, and the connecting screw passes through the fixing through hole 112 and is threadedly connected to the fixing threaded hole 1221. The steel strip 11 is fixedly connected to the fixing platform 122 by the connecting screw, and the connection is ensured by the pressing structure 121 and the thrust ramp 124. In other embodiments, the fixing platform 122 and the steel strip 11 may also be connected by a snap-fit ​​or riveting structure.

[0091] Please see Figures 12-13 As another specific embodiment of the headphones provided in this application, the fixing platform 122 has a contact slope 1222, a fixing threaded hole 1221 is formed on the contact slope 1222, and a fixing inclined plate 113 adapted to the contact slope 1222 is provided on the steel strip 11, with a fixing through hole 112 formed on the fixing inclined plate 113. The fixing inclined plate 113 contacts the contact slope 1222 of the fixing platform 122, so the contact part is an inclined surface, which can adapt to the bending state of the steel strip 11 itself, and is not easily affected by the bending tendency of the steel strip 11 itself, thus ensuring the stability of the connection between the fixing inclined plate 113 and the fixing platform 122.

[0092] Please see Figures 12-13 As another specific embodiment of the headphones provided in this application, the headband plastic part 12 is also provided with a limiting platform 125, and the pressing structure 121 is located between the limiting platform 125 and the fixing platform 122; the end of the steel strip 11 abuts against the limiting platform 125, thereby limiting the end of the steel strip 11, fixing the position of the end of the steel strip 11, thereby indirectly ensuring that the part where the steel strip 11 is connected to the fixing platform 122 remains relatively stable.

[0093] Please see Figures 6-7 As another specific embodiment of the headphones provided in this application, the headband 1 also includes a sponge 18 that abuts against the two headband plastic parts 12, and a leather sleeve 19; the leather sleeve 19 is fitted over the headband plastic parts 12, the sponge 18 and the steel strip 11.

[0094] The headband is fitted over the plastic part 12, the foam part 18, and the steel strip 11 of the headband, so the thickness of the headband 1 at all points is the outer diameter of the headband. This solves the problem of inconsistent thickness at different points on the headband of headphones. The steel strip 11, as the main component of the headband 1, has a certain phase change capability; the deformation of the steel strip 11 is mainly located at the position corresponding to the foam part 18. When the steel strip 11 deforms, it causes the foam part 18 to deform as well. Since the cover 19 is fitted over the steel strip 11 and the foam part 18, it can prevent the deformation of the foam part 18 from changing the thickness of the headband 1, thus ensuring that the headband 1 maintains a relatively stable thickness at all points during use.

[0095] The headband 1 also includes a double-sided adhesive strip that is bonded between the steel strip 11 and the leather sleeve 19. The double-sided adhesive strip can bond the leather sleeve 19 to the steel strip 11, and the position of the leather sleeve 19 is not easy to rub. The sponge 18 and the double-sided adhesive strip are located on opposite sides of the steel strip 11.

[0096] It is understood that the solution in another specific implementation may be an achievable implementation scheme that is further improved based on other embodiments.

[0097] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. Headphones, characterized in that, The device includes an earphone headband and an earcup assembly mounted on the headband. The earcup assembly includes an upper shell connected to the headband, a middle shell connected to the upper shell, a lower shell connected to the middle shell, a speaker located between the middle shell and the lower shell, and a flexible cover bonded to the lower shell on the side away from the middle shell. The lower shell has a sound outlet corresponding to the speaker. The lower shell has a snap-fit ​​groove, and the flexible cover has a snap-fit ​​protrusion that snaps into the snap-fit ​​groove. The gap between the flexible cover and the lower shell is filled with adhesive. The headband of the headphones includes a steel bar, two headband plastic parts respectively installed at opposite ends of the steel bar, a sliding frame slidably installed on the headband plastic parts and having a rotating cylinder, a rotating connecting block rotatably installed on the rotating cylinder, and a hanging bracket fixedly connected to the rotating connecting block; the upper shell is connected to the hanging bracket. The rotating connecting block has a first rotating through hole, the rotating cylinder passes through the first rotating through hole, a limit groove is formed on the surface of the rotating cylinder, and a clamping member is installed in the limit groove; the clamping member is located on the side of the first rotating through hole away from the sliding frame; the maximum width of the clamping member is greater than the maximum width of the first rotating through hole. The rotating connecting block has a first rotating platform and a second rotating platform that is opposite to and spaced apart from the first rotating platform; the first rotating through hole is formed on the first rotating platform; the clamping member is located between the first rotating platform and the second rotating platform; the clamping member is a clamping ring with an opening, and the clamping ring is sleeved on the rotating cylinder within the limiting groove; the clamping ring is provided with at least one positioning piece, and there is an included angle between the positioning piece and the clamping ring; the positioning piece abuts against the second rotating platform, and the clamping ring is elastic; The second rotating platform has a second rotating through hole; the rotating connecting block has an abutment platform that is opposite to and spaced apart from the second rotating platform; the abutment platform is located on the side of the second rotating platform away from the first rotating platform; the rotating cylinder passes through the second rotating through hole and abuts against the abutment platform; One end of the headband plastic component is provided with a pressing structure, and the other end of the headband plastic component is provided with a fixing platform; the steel strip is inserted between the pressing structure and the headband plastic component, and the steel strip is fixedly connected to the fixing platform; the pressing structure includes two pressing plates that are opposite to each other and spaced apart, a pressing gap is formed between the pressing plates and the headband plastic component, the steel strip is inserted into the pressing gap, and the end face of the pressing plates has a groove structure; The edge of the steel bar is provided with a clearance notch adapted to the pressure plate, and the head beam plastic part is also provided with a thrust ramp adapted to the clearance notch. The thrust ramp is located on the side of the pressure plate away from the fixed platform. The fixing platform is provided with a fixing threaded hole, and the steel bar is provided with a fixing through hole. A connecting screw is provided between the fixing platform and the steel bar. The connecting screw passes through the fixing through hole and is threadedly connected to the fixing threaded hole. The fixing platform has a contact slope, the fixing threaded hole is provided on the contact slope, and the steel bar is provided with a fixing inclined plate adapted to the contact slope. The fixing through hole is provided on the fixing inclined plate. The ear cup assembly also includes a battery component disposed between the upper shell and the middle shell; one side surface of the battery component abuts against the middle shell; the other side surface of the battery component abuts against the upper shell; the middle shell is provided with a plurality of first snap-fit ​​posts, and the upper shell is provided with second snap-fit ​​posts corresponding one-to-one with the first snap-fit ​​posts.

2. The headphones according to claim 1, characterized in that, The earcup assembly further includes a sealing cover located between the middle shell and the lower shell; the sealing cover and the lower shell enclose a tuning cavity; the speaker is located inside the tuning cavity; the sealing cover has a top plate opposite to the speaker, and a connecting ring disposed along the edge of the top plate; the connecting ring is disposed around the speaker; the connecting ring abuts against the lower shell; and a tuning hole is provided on the connecting ring.

3. The headphones according to claim 2, characterized in that, The lower shell is provided with a limiting ring, which surrounds the connecting ring; there is a gap between the limiting ring and the connecting ring.

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