Ear-hanging earphone

Abstract

This disclosure provides an ear-hook type earphone, belonging to the field of earphone technology, comprising: an earphone shell having a receiving cavity for accommodating electronic components; an ear hook including a first mating member and an ear hook portion connected to each other, the ear hook being slidably disposed on the earphone shell via the first mating member, and the first mating member being slidably disposed on the periphery of the earphone shell, with the ear hook portion at least partially exposed outside the earphone shell; a second mating member disposed between the earphone shell and the ear hook; wherein, during the sliding process of the ear hook, the second mating member and the first mating member are engaged in multi-position adjustable engagement; the distance between the engagement point of the second mating member and the first mating member and the side wall of the earphone shell is less than the distance between the engagement point and the center point of the earphone shell; the engagement direction of the second mating member and the first mating member intersects with the side wall of the earphone shell. The ear-hook type earphone provided by this disclosure has a thin and light structure and allows for adjustment of the ear hook angle.

Description

Technical Field

[0001] This disclosure relates to the field of headphone technology, and more particularly to an ear-hook type headphone. Background Technology

[0002] Existing ear-hook headphones have some design limitations, mainly in the adjustment function of the ear hook. Traditional ear-hook headphones mostly adopt a fixed design, and the ear hook angle cannot be adjusted. This results in varying comfort and stability when wearing them, failing to meet the personalized needs of different users.

[0003] In related technologies, some products offer adjustable ear hook structures, but these structures usually occupy a lot of space, resulting in bulky headphone structures that affect the product's market competitiveness and user experience.

[0004] For example, Chinese utility model patent CN218772366U discloses an ear-hook type of earphone, including an ear hook, an earphone shell, and a positioning structure. The earphone shell is rotatably connected to the ear hook via an internal rotating shaft, and the positioning between the ear hook and the earphone shell is achieved through a spring contact and a gear-shaped positioning structure. In this design, the connection structure between the ear hook and the earphone shell occupies a large space, resulting in a relatively thick and heavy earphone. The thickness and weight of the earphone increase the wearing burden, and prolonged wear can easily lead to ear and head discomfort, pain, or fatigue, reducing the willingness to wear it. Secondly, during exercise or activity, the earphone is prone to loosening or falling off, affecting stability, and may also be damaged or lost. Furthermore, the heavy earphone's appearance is not lightweight or stylish, its portability is poor, it occupies more carrying space, and affects the product's market appeal and user experience. Utility Model Content

[0005] To overcome the problems existing in related technologies, this specification provides an ear-hook type of earphone with a thin and light structure that allows for adjustment of the ear-hook angle.

[0006] According to a first aspect of this disclosure, an ear-hook headphone is provided, comprising:

[0007] The earphone shell has a cavity for accommodating electronic components;

[0008] An ear hook includes a first mating member and an ear hook portion that are connected to each other. The ear hook is slidably disposed on the earphone shell via the first mating member, and the first mating member is slidably disposed on the periphery of the earphone shell. The ear hook portion is at least partially exposed outside the earphone shell.

[0009] The second mating component is disposed between the earphone shell and the ear hook;

[0010] During the sliding process of the ear hook, the second mating component and the first mating component are adjusted to multiple positions.

[0011] The distance between the mating point of the second mating component and the first mating component and the side wall of the earphone shell is less than the distance between them and the center point of the earphone shell;

[0012] The mating direction of the second mating component and the first mating component intersects with the side wall of the earphone shell.

[0013] The ear-hook headphones disclosed herein feature a multi-position combination of the first and second mating parts, allowing users to flexibly adjust the angle of the ear hooks according to their own usage habits. This design meets the personalized needs of different users and improves wearing comfort and stability.

[0014] Secondly, by slidably mounting the first mating component of the ear hook on the periphery of the earphone shell, this design cleverly utilizes the periphery of the shell, allowing a large portion of the interior to be used for other components, such as electronic devices. This space utilization significantly improves the efficiency of the internal space, enabling the earphone to accommodate more functional components without increasing its overall thickness, thus achieving a slimmer design. Furthermore, because the distance between the mating points of the first and second mating components and the sidewalls of the earphone shell is less than the distance to the center point of the shell, and the mating direction intersects with the sidewalls, this design further optimizes the internal spatial layout, allowing for a more compact and slimmer appearance while maintaining functionality. This slim design not only improves wearing comfort but also enhances the earphone's portability and stylish appearance.

[0015] In addition, the first mating component can not only adjust the ear hook angle, but also connect the ear hook to the earphone shell. One structure integrates multiple functions, with a high degree of integration, which can reduce the number of parts and reduce assembly difficulty.

[0016] In some exemplary embodiments of this disclosure, the earphone shell further includes an arcuate cavity located at the side wall of the earphone shell;

[0017] The first mating component is an insert, which is at least partially located within the arcuate cavity. The insert is at least partially attached to the sidewall of the arcuate cavity. The insert can slide along a first trajectory within the arcuate cavity. The first trajectory is arcuate, and the insert is an arcuate piece with the same curvature as the first trajectory. The insert is set at an angle to the bottom wall of the earphone shell.

[0018] In this type of embodiment, the way the insert engages with the arc-shaped cavity increases the contact area between the ear hook and the earphone shell, making the connection between them more stable. This design effectively reduces the risk of loosening during long-term use, improving product reliability and lifespan. Furthermore, the sliding motion of the insert along the arc-shaped groove, compared to the circumferential rotation of the pivot, increases the contact area between the ear hook and the earphone shell, significantly enhancing the smoothness and positioning stability of the adjustment process. Moreover, the bending stress generated during the insert's sliding is evenly distributed across the entire length of the arc-shaped cavity, compared to the stress concentration at the journal in a pivot structure, extending fatigue life and completely solving the problem of shaft breakage common in traditional structures.

[0019] Furthermore, the combination of the insert and the arc-shaped cavity not only allows for the adjustment of the ear hook angle but also enables the connection between the ear hook and the earphone shell. This single structure integrates multiple functions, resulting in a high degree of integration, which reduces the number of parts and simplifies assembly.

[0020] In some exemplary embodiments of this disclosure, the second mating member is an elastic member that elastically abuts against the earphone shell and the insert, and the elastic member is provided with a second mating portion;

[0021] The earphone shell or the insert is provided with a first mating part, the first mating part is adapted to the second mating part, and the number of at least one of the second mating part and the first mating part is multiple;

[0022] When the insert slides along the first trajectory within the arc-shaped cavity, the second mating part engages with the first mating part to achieve multi-position adjustment of the ear hook.

[0023] In this type of embodiment, the elastic contact between the elastic element and the insert, as well as the cooperation between the second mating part and the first mating part, makes the multi-position adjustment of the ear hook more stable and reliable. The design of the elastic element provides a good operating feel, and users can feel a clear shift in position when adjusting the ear hook angle, ensuring the stability of the ear hook after it is adjusted to the required angle.

[0024] In some exemplary embodiments of this disclosure, the elastic member includes a fixed plate and a spring sheet connected to each other, and the second mating part is disposed on the spring sheet;

[0025] The fixing plate is connected to one of the earphone shell and the insert, and the spring is used to abut against the other of the earphone shell and the insert;

[0026] The first mating part is provided on the side wall of the arc-shaped cavity, the bottom wall of the earphone shell, or the insert.

[0027] In this type of embodiment, the elastic element consists of a fixed plate and a spring plate. The fixed plate provides a stable connection, while the spring plate provides the elasticity to ensure the multi-position adjustment function of the ear hook. The design of the spring plate ensures stable elastic support during the multi-position adjustment of the ear hook. The abutting design between the spring plate and the earphone shell or insert makes the adjustment of the ear hook smoother and provides a clear sense of the positions, enhancing the user's operating experience.

[0028] In some exemplary embodiments of this disclosure, the insert is provided with a plurality of first mating portions spaced apart along the first trajectory, the fixing plate is connected to the earphone shell, and the spring is used to abut against the insert.

[0029] In this type of embodiment, the design is further clarified in that the first mating part is disposed on the insert, the fixing plate is connected to the earphone shell, and the spring contact abuts against the insert. By placing the first mating part on the insert, the need to modify the earphone shell structure is eliminated, significantly improving the compatibility of conventional earphone shell molds.

[0030] Meanwhile, the first mating part is designed on the insert, allowing users to clearly feel a tactile feedback when adjusting the ear hook angle. Furthermore, multiple first mating parts are spaced apart on the ear hook, resulting in less wear over long-term use compared to gear-like positioning structures in related technologies. Because the first mating parts are located on the insert, the contact area between the insert and the second mating parts is relatively large, effectively distributing stress during use and reducing wear caused by frequent adjustments, thereby extending the product's lifespan and improving its reliability and durability.

[0031] In some exemplary embodiments of this disclosure, the sidewall of the arc-shaped cavity is provided with a plurality of first mating parts distributed at intervals along the first trajectory, the fixing plate is connected to the insert, and the spring piece is used to abut against the cavity wall of the arc-shaped cavity.

[0032] In this type of embodiment, another implementation method is provided, in which the first mating part is disposed on the side wall of the arc-shaped cavity, the fixing plate is connected to the insert, and the spring abuts against the cavity wall of the arc-shaped cavity. This design can effectively reduce the structural complexity of the insert, resulting in a larger contact area between the insert and the arc-shaped cavity and a higher degree of fit.

[0033] In some exemplary embodiments of this disclosure, the bottom wall of the earphone shell is provided with a plurality of first mating parts distributed at intervals along the first trajectory, the fixing plate is connected to the insert, and the spring abuts against the bottom wall of the earphone shell.

[0034] In some exemplary embodiments of this disclosure, there are multiple first mating parts, and the multiple first mating parts are arranged at intervals along the first trajectory, and there is one second mating part;

[0035] When the insert slides along the first trajectory within the arc-shaped cavity, the second mating part switches between different first mating parts;

[0036] The first trajectory is an arc shape, and multiple first mating parts are distributed at equal central angles along the first trajectory.

[0037] In this type of embodiment, the first trajectory is arc-shaped, and multiple first mating parts are distributed at equal central angles along the arc. This design makes the rotation of the ear hook more uniform and stable, ensuring that the angle of rotation is consistent each time the user adjusts the ear hook angle, making it easier for the user to quickly find the most suitable wearing angle. The distribution of equal central angles not only improves the design precision of the product but also provides users with a more intuitive and convenient operating experience, enhancing the overall performance and market competitiveness of the product.

[0038] In some exemplary embodiments of this disclosure, the central angle between two adjacent first mating portions is 10°-20°.

[0039] In this type of embodiment, the central angle between two adjacent first mating parts is defined as 10°-20°. This angle range ensures that the ear hook can be flexibly adjusted within a certain range while avoiding overly dense stops that would make operation difficult. Users can make fine adjustments within a small angle range according to their needs, better adapting to the differences in ear shapes of different users, improving wearing comfort and personalization. At the same time, this angle range design also provides clear parameters for product manufacturing, helping to improve production efficiency and product quality.

[0040] In some exemplary embodiments of this disclosure, the number of the first mating parts is three, namely a left first mating part, a middle first mating part, and a right first mating part arranged sequentially along the first trajectory. The central angle between the left first mating part and the middle first mating part is 20°, and the central angle between the middle first mating part and the right first mating part is 20°.

[0041] In this type of embodiment, by setting three first mating parts, arranged sequentially along the first trajectory as the left first mating part, the middle first mating part, and the right first mating part, and with the central angle between adjacent first mating parts all being 20°, this design not only meets the wearing needs of most users in daily use but also simplifies the product design and manufacturing process. The three-position design provides users with a standard adjustment range, allowing the ear hook to switch between three fixed angles of -20°, 0°, and 20° (with the middle second position as the original position), covering the wearing needs of most users in different scenarios and improving the product's versatility and practicality.

[0042] Furthermore, the first mating part, with its 20° central angle layout, ensures that the ear hook's rotation angle matches the shape of the human ear, meeting the fitting needs of 95% of users' ear shapes. This design fully considers ergonomic principles, ensuring a close fit between the ear hook and the ear, improving wearing comfort and stability. Through this precise angle layout, users can quickly and accurately adjust the ear hook to the most comfortable angle according to their ear shape and usage habits, further enhancing the user experience.

[0043] In some exemplary embodiments of this disclosure, one of the second mating portion and the first mating portion is a protrusion, and the other is a groove adapted to the protrusion. When the protrusion is positioned in the groove, there is a gap between the protrusion and the bottom of the groove.

[0044] In this type of embodiment, by designing one of the second mating part and the first mating part as a protrusion and the other as a groove adapted to the protrusion, and specifying a gap between the protrusion and the bottom of the groove, adequate space for movement can be provided while ensuring stable positioning of the ear hook. This design avoids jamming caused by manufacturing errors or wear and tear, improving product reliability and service life. At the same time, the reasonable spacing ensures smooth adjustment of the ear hook, providing users with a good operating feel.

[0045] In some exemplary embodiments of this disclosure, one of the second mating portion and the first mating portion is a protrusion, and the other is a groove adapted to the protrusion. When the protrusion is positioned in the groove, there is a first distance between the protrusion and the bottom of the groove. The ratio of the first distance to the depth of the groove is less than or equal to 0.3, and the depth direction of the groove is perpendicular to the insert.

[0046] In this type of embodiment, the mating relationship between the protrusion and the groove in the second mating part and the first mating part is defined, specifying that the ratio of the first distance between the protrusion and the bottom of the groove to the groove depth is less than or equal to 0.3, and that the depth direction of the groove is perpendicular to the insert. This design helps optimize the positioning accuracy and operating feel of the ear hook, while ensuring the stability of the spring during compression and release.

[0047] In some exemplary embodiments of this disclosure, one of the second mating portion and the first mating portion is a protrusion, and the other is a groove adapted to the protrusion. When the protrusion is positioned in the groove, there is a first distance of 0.1 mm between the protrusion and the bottom of the groove, the depth of the groove is 0.4 mm, and the depth direction of the groove is perpendicular to the insert.

[0048] In some exemplary embodiments of this disclosure, the groove opening edge is configured as a first arc-shaped transition surface, and the radius of curvature r1 of the first arc-shaped transition surface satisfies 0.25mm≤r1≤0.35mm;

[0049] The surface of the protrusion is curved; or

[0050] The edge of the protrusion is set as a second arc-shaped transition surface, and the radius of curvature r2 of the second arc-shaped transition surface satisfies 0.25mm≤r2≤0.35mm.

[0051] In this type of embodiment, by setting a first arc-shaped transition surface at the edge of the groove opening, and specifying its radius of curvature r1 to be between 0.25mm and 0.35mm, and by setting the surface of the protrusion as an arc surface or setting the edge of the protrusion as a second arc-shaped transition surface with a radius of curvature r2 between 0.25mm and 0.35mm, the friction between the second mating part and the first mating part can be effectively reduced, improving the smoothness of rotation. The arc-shaped transition surface eliminates the stress concentration phenomenon of traditional right-angle structures through continuous curvature design, reducing the maximum stress value of the contact surface to below the material fatigue limit, theoretically possessing an infinite cycle life. The curved surface fit between the protrusion and the groove forms a hydrodynamic lubrication effect during sliding, with the coefficient of friction approaching the level of a ball bearing.

[0052] In some exemplary embodiments of this disclosure, the fixing plate is connected to the bottom wall of the earphone shell;

[0053] When the second mating part slides out of the first mating part and abuts against the insert, the spring is in a compressed state, and the spring and the fixing plate form a first included angle α, which satisfies 70°≤α≤80°.

[0054] The design of the spring in this embodiment ensures that it maintains appropriate elasticity under different conditions, thus providing stable support for the rotation and positioning of the ear hook. Simultaneously, the reasonable angle setting helps optimize the elasticity distribution of the spring, further reducing fatigue damage and providing users with a more stable and reliable wearing experience.

[0055] In some exemplary embodiments of this disclosure, the fixing plate is detachably connected to the earphone shell.

[0056] In this type of embodiment, the design facilitates the replacement or repair of the elastic element as needed, improving the maintainability and scalability of the product.

[0057] In some exemplary embodiments of this disclosure, the earphone shell has a bottom wall and a side wall connected to the bottom wall, the bottom wall and the side wall of the earphone shell forming the receiving cavity, and the arcuate cavity is located within the receiving cavity;

[0058] The receiving cavity further includes a fixed cavity, and a partition plate is provided between the arc-shaped cavity and the fixed cavity, with an abutment channel extending through the partition plate;

[0059] The fixing plate is at least partially located within the fixing cavity, and the fixing plate passes through the abutting channel to abut the spring against the insert.

[0060] In this type of embodiment, a fixed cavity and a partition plate are provided within the receiving cavity, and an abutment channel is provided on the partition plate, allowing the spring piece to abut against the insert piece. This structural design further optimizes the installation position and method of the elastic component, improving the assembly efficiency and stability of the product. Simultaneously, the abutment channel design on the partition plate provides better guidance for the movement of the spring piece, further enhancing the product's performance and reliability, and ensuring more precise and stable rotation and positioning of the ear hook.

[0061] In some exemplary embodiments of this disclosure, the fixing cavity is provided with a mounting groove, the shape and size of which are adapted to the shape and size of the fixing plate, and the fixing plate is located in the mounting groove.

[0062] In this type of embodiment, a mounting groove adapted to the shape and size of the fixing plate is provided within the fixing cavity, ensuring accurate positioning and stable fixation of the fixing plate during installation. This design further improves the assembly precision and reliability of the product, while also facilitating automated operations in the production and manufacturing process, thereby improving production efficiency and product quality. This precise mounting groove design effectively reduces potential errors during assembly, ensuring product performance and stability.

[0063] In some exemplary embodiments of this disclosure, the thickness of the spring is 0.15mm-0.3mm.

[0064] In this type of embodiment, the thickness of the spring is limited to 0.15mm to 0.3mm. This thickness range ensures sufficient elasticity and strength while minimizing the thickness of the spring, thereby reducing the overall weight and size of the product and improving wearing comfort. Simultaneously, an appropriate thickness also helps improve the durability and lifespan of the spring, further enhancing the product's performance and reliability. This precise thickness design ensures that the spring maintains good elasticity during long-term use, providing users with a stable and reliable wearing experience.

[0065] In some exemplary embodiments of this disclosure, the insert is perpendicular to the bottom wall of the earphone shell.

[0066] In this type of embodiment, the vertical insert design allows for a more rational internal spatial layout of the earphone, optimizing its overall structure. This design not only improves the integration of the earphone but also provides more space for the installation and layout of other components, contributing to a slimmer and lighter design.

[0067] In some exemplary embodiments of this disclosure, the earphone shell has a bottom wall and a side wall connected to the bottom wall, the bottom wall and the side wall of the earphone shell forming the receiving cavity;

[0068] The arc-shaped cavity is located inside the receiving cavity, or the arc-shaped cavity is located outside the side wall of the earphone shell.

[0069] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0070] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0071] Figure 1 This is a schematic diagram of the ear-hook headphone structure in an exemplary embodiment of this disclosure.

[0072] Figure 2 This is a schematic diagram of the headphone shell structure in an exemplary embodiment of this disclosure.

[0073] Figure 3 This is a schematic diagram of the elastic member structure in an exemplary embodiment of this disclosure.

[0074] Figure 4 This is a schematic diagram of the ear hook structure in an exemplary embodiment of this disclosure.

[0075] Figure 5 This is an angle view of the elastic element in an exemplary embodiment of this disclosure.

[0076] Figure 6 This is a schematic diagram of a structure in which the first mating part is a groove in an exemplary embodiment of this disclosure.

[0077] Figure 7 This is a schematic diagram of the structure in which the second mating part is positioned within the first mating part in an exemplary embodiment of this disclosure.

[0078] Figure 8 This is a top view schematic diagram of an ear-hook headphone in an exemplary embodiment of this disclosure.

[0079] Explanation of reference numerals in the attached figures

[0080] 100 - Earphone shell; 101 - Bottom wall of earphone shell; 102 - Side wall of earphone shell; 110 - Receiving cavity; 111 - Arc-shaped cavity; 112 - Fixing cavity; 113 - Mounting groove; 1131 - Boss; 1132 - Second mounting hole; 120 - Partition plate; 121 - Contact channel; 200 - Ear hook; 210 - First mating part; 211 - First mating portion; 2111 - Left first mating portion; 2112 - Middle first mating portion; 2113 - Right first mating portion; 220 - Ear hook; 300 - Second mating part; 310 - Fixing plate; 311 - Horizontal plate; 3111 - First mounting hole; 312 - Side plate; 320 - Spring piece; 321 - Second mating portion. Detailed Implementation

[0081] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0082] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0083] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0084] In this disclosure, terms such as "perpendicular" and "equal" refer to perpendicularity and equality within the range of process error, not absolute perpendicularity and equality. Process error can be within ±10% or ±5%. For example, if the first direction and the second direction are perpendicular, it can be understood that the angle between the first direction and the second direction can be 90° ± 5°.

[0085] Ear-hook headphones are a type of headphone designed to be worn over the ear. Their main feature is the use of an ear hook structure to secure the headphones in place, allowing them to hang stably on the ear without needing to be inserted into the ear canal or rely on earplugs. This design typically offers better wearing comfort and stability, making it especially suitable for use during exercise or in situations requiring prolonged wear.

[0086] like Figures 1 to 4 As shown, this embodiment of the present disclosure provides an ear-hook type earphone, including an earphone shell 100, an ear hook 200, and a second mating part 300. The earphone can achieve the rotatable function of the ear hook 200 through the cooperation between the earphone shell 100, the ear hook 200, and the second mating part 300, so as to meet the needs of different users.

[0087] The earphone shell 100 has a receiving cavity 110 for accommodating electronic components. The ear hook 200 includes a first mating member 210 and an ear hook portion 220 interconnected. The ear hook 200 is slidably disposed on the earphone shell 100 via the first mating member 210, and the first mating member 210 is slidably disposed on the periphery of the earphone shell 100. The ear hook portion 220 is at least partially exposed outside the earphone shell 100. A second mating member 300 is disposed between the earphone shell 100 and the ear hook 200.

[0088] During the sliding of the ear hook 200, the second mating part 300 and the first mating part 210 engage in multi-position adjustment. The distance L1 between the mating points of the second mating part 300 and the first mating part 210 and the side wall 102 of the earphone shell 100 is less than the distance L2 between them and the center point of the earphone shell 100. The mating direction of the second mating part 300 and the first mating part 210 intersects with the side wall 102 of the earphone shell 100.

[0089] This disclosure cleverly utilizes the peripheral space of the earphone shell 100 by slidably arranging the first mating member 210 of the ear hook 200 on the periphery of the earphone shell 100. This allows a large portion of the interior area of ​​the earphone shell 100 to be used for mounting other components, such as electronic components. This space utilization significantly improves the utilization rate of the internal space of the earphone, enabling the earphone to accommodate more functional components without increasing the overall thickness, thereby achieving a thinner and lighter design. Moreover, since the distance L1 between the mating point of the first mating member 210 and the second mating member 300 and the side wall 102 of the earphone shell 100 is less than the distance L2 between them and the center point of the earphone shell 100, (…). Figure 8 Furthermore, the design aligns with the sidewall 102 of the earphone shell 100, further optimizing the internal space layout of the earphones. This allows the earphones to maintain functionality while achieving a more compact and lightweight design. The slim design not only improves wearing comfort but also enhances the earphones' portability and stylish appearance.

[0090] The structure of each part of the ear-hook earphone provided in the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings:

[0091] like Figures 1 to 4 , Figure 8 As shown, the earphone shell 100 has a receiving cavity 110 for accommodating electronic components. Optionally, the earphone shell 100 has a bottom wall 101 and a side wall 102 connected to the bottom wall 101, the bottom wall 101 and the side wall 102 of the earphone shell 100 forming the receiving cavity 110. The shape of the earphone shell 100 can be various, such as a cylindrical shell or a racetrack-shaped shell, but is not limited to these. The bottom wall 101 and the side wall 102 of the earphone shell 100 are generally perpendicular.

[0092] The ear hook 200 includes a first mating member 210 and an ear hook portion 220 that are connected to each other. The ear hook 200 is slidably disposed on the earphone shell 100 via the first mating member 210, and the first mating member 210 is slidably disposed on the periphery of the earphone shell 100. The ear hook portion 220 is at least partially exposed outside the earphone shell 100.

[0093] The first mating member 210 can be disposed on the outside and inside of the earphone shell 100. Specifically, the first mating member 210 can be disposed on the outside of the side wall 102 of the earphone shell 100, or inside the side wall 102 of the earphone shell 100. The second mating member 300 is disposed between the earphone shell 100 and the ear hook 200. Optionally, the second mating member 300 can be connected to the earphone shell 100 or the ear hook 200. For example, in one embodiment, the second mating member 300 is connected to the earphone shell 100; in another embodiment, the second mating member 300 is connected to the ear hook 200, specifically, it can be connected to the first mating member 210.

[0094] During the sliding process of the ear hook 200, the second mating part 300 and the first mating part 210 engage in multi-position adjustment to achieve multi-angle adjustment of the ear hook 200. Each position corresponds to one angle. The distance L1 between the mating point of the second mating part 300 and the first mating part 210 and the side wall 102 of the earphone shell 100 is less than the distance L2 between the mating point and the center point of the earphone shell 100. Figure 8 ).

[0095] In this disclosure, the second mating component 300 and the first mating component 210 can be configured in various ways. For example, one of the first mating component 210 and the second mating component 300 can be a slide rail with multiple locking positions, and the other can be a structural component with a slider. When the slider slides on the slide rail, it can switch between multiple locking positions on the slide rail, and each locking position corresponds to an adjustment angle of the ear hook 200. Of course, the slide rail may also not have locking positions, and the angle adjustment of the ear hook 200 can be achieved by the slider sliding directly on the slide rail. Another example is that the first mating component 210 can be a rack and pinion, and the second mating component 300 can be a gear. When the gear rotates on the rack, it can achieve multi-angle adjustment of the ear hook 200. Yet another example is that the first mating component 210 can be an insert with multiple grooves, and the second mating component 300 can be a structural component with a protrusion. When the protrusion slides on the insert, it can switch between multiple grooves on the multiple inserts, and each groove corresponds to an adjustment angle of the ear hook 200.

[0096] The mating point of the first mating part 210 and the second mating part 300 can be the mating position of the slider and the slot on the slide rail, or the position where the teeth of the rack and gear mesh, or the mating position of the groove and protrusion on the insert.

[0097] The mating direction of the second mating part 300 and the first mating part 210 intersects with the side wall 102 of the earphone shell 100. Optionally, the mating direction of the second mating part 300 and the first mating part 210 is approximately perpendicular to the side wall 102 of the earphone shell 100. The mating direction of the second mating part 300 and the first mating part 210 can be perpendicular to the slide rail, or it can be the direction of gear and rack meshing, or it can be the depth direction of the groove on the insert.

[0098] The earphone shell 100 also includes an arcuate cavity 111. The arcuate cavity 111 is located at the side wall 102 of the earphone shell 100. Optionally, the arcuate cavity 111 may be located outside the side wall 102 of the earphone shell 100 or inside the side wall 102 of the earphone shell 100. When the arcuate cavity 111 is located inside the side wall 102 of the earphone shell 100, it may be part of the receiving cavity 110.

[0099] The first mating part 210 is an insert, which is at least partially located within the arc-shaped cavity 111. The insert is at least partially attached to the side wall of the arc-shaped cavity 111 and can slide along a first trajectory within the arc-shaped cavity 111. The first trajectory is arc-shaped, and the insert is an arc-shaped piece with the same curvature as the first trajectory. The insert is set at an angle to the bottom wall 101 of the earphone shell 100. The insert can be a plastic part, integrally injection molded with the ear hook part 220; or it can be a separate structure from the ear hook part 220, and its material can be a plastic part or a flexible, easily deformable metal part.

[0100] The second mating component 300 is an elastic component that elastically abuts against the earphone shell 100 and the insert. The elastic component has a second mating part 321. The earphone shell 100 or the insert has a first mating part 211, which is adapted to the second mating part 321. At least one of the second mating parts 321 and the first mating parts 211 is multiple. When the insert slides along the first trajectory in the arc-shaped cavity 111, the second mating part 321 engages with the first mating part 211 to realize the multi-position adjustment of the ear hook 200.

[0101] The second mating component 300 includes a fixing plate 310 and a spring piece 320 that are connected to each other, and the spring piece 320 is provided with a second mating part 321.

[0102] The fixing plate 310 is connected to one of the earphone shell 100 and the insert, and the spring 320 abuts against the other of the earphone shell 100 and the insert. Multiple first mating portions 211 are provided on the side wall of the arc-shaped cavity 111, the bottom wall 101 of the earphone shell 100, or the insert, spaced apart along a first trajectory. The first mating portions 211 are adapted to the second mating portions 321 so that when the insert slides along the first trajectory within the arc-shaped cavity 111, the second mating portions 321 can switch between different first mating portions 211.

[0103] This embodiment achieves the rotation function of the ear hook 200 through the cooperation of the arc-shaped cavity 111, the insert, and the second mating part 300, eliminating the need for an additional rotating shaft and complex connecting components. This design greatly simplifies the internal structure of the headphones, reduces the number of parts, and lowers production costs. Moreover, since no additional rotating shaft and fixing components are required, the overall thickness of the headphones can be reduced, making them thinner and lighter, more comfortable to wear, and especially suitable for long-term use.

[0104] Secondly, the way the insert engages with the arc-shaped cavity 111 increases the contact area between the ear hook 200 and the earphone shell 100, making the connection between them more stable. This design effectively reduces the risk of loosening during long-term use, improving product reliability and lifespan. Furthermore, the sliding motion of the insert along the arc-shaped groove, compared to the circumferential rotation of the pivot, increases the contact area between the ear hook 200 and the earphone shell 100, significantly enhancing the smoothness of the adjustment process and positioning stability. Moreover, the bending stress generated during the insert's sliding is evenly distributed within the arc-shaped cavity 111, compared to the stress concentration at the journal in a pivot structure, extending fatigue life and completely solving the problem of shaft breakage common in traditional structures.

[0105] Furthermore, through the cooperation of the insert and the arc cavity 111, not only is the angle of the ear hook 200 adjusted, but the connection between the ear hook 200 and the earphone shell 100 is also realized. One structure integrates multiple functions, with a high degree of integration, which can reduce the number of parts and reduce the assembly difficulty.

[0106] The earphone shell 100 may include a lower shell and an upper shell, which are detachably connected by means of snap-fit ​​or other methods. The lower shell may be generally cylindrical or elliptical cylindrical, and the upper shell may also be cylindrical or elliptical cylindrical, or it may be a cover structure. The shape of the receiving cavity 110 may be determined by the shape of the earphone shell 100. The receiving cavity 110 may be used to accommodate at least a portion of the structure of the ear hook 200.

[0107] In some embodiments, the receiving cavity 110 is a split-cavity design, which may include an arc-shaped cavity 111 and other cavities. The arc-shaped cavity 111 is used for inserting components from the ear hook 200, but is not limited thereto. The arc-shaped cavity 111 is a curved cavity, which can be a circular arc cavity. The arc length or the corresponding central angle of this circular arc cavity can be set according to the user's rotation requirements for the ear hook 200. In this disclosure, the central angle corresponding to the arc-shaped cavity 111 can be 90°-270°. Specifically, it can be 90°, 105°, 120°, 135°, 150°, 165°, 180°, 195°, 210°, 225°, 240°, 255°, or 270°, but is not limited thereto. In other embodiments, the arc-shaped cavity 111 is located outside the receiving cavity 110 (not shown).

[0108] The bottom wall 101 and side wall 102 of the earphone shell 100 form a receiving cavity 110. The bottom wall 101 of the earphone shell 100 can be the bottom wall of the lower shell, and the side wall can be the side wall of the lower shell, or it can be a combination of the side walls of the lower shell and the upper shell. Preferably, the side wall 102 of the earphone shell 100 is the side wall of the lower shell, and the upper shell is a cover plate. This way, the insert is simply inserted into the lower shell, and the cover plate is used to close it, resulting in a simple structure and easy assembly.

[0109] The ear hook 220 is at least partially exposed outside the earphone shell 100. The ear hook 220 can be suspended on the user's ear during use. The shape of the ear hook 220 is not limited in this disclosure and can be designed according to the ear shape of most users.

[0110] The insert is angled to the bottom wall 101 of the earphone shell 100, meaning it is not parallel to the bottom wall 101. Optionally, the insert is perpendicular to the bottom wall 101 of the earphone shell 100. The insert is located within the arc-shaped cavity 111 and can slide along a first trajectory within the arc-shaped cavity 111. The first trajectory is arc-shaped, and the insert is an arc-shaped piece with the same curvature as the first trajectory. The length of the insert along the first trajectory is less than the length of the arc-shaped cavity 111. In this disclosure, the trajectory of the insert sliding within the arc-shaped cavity 111, i.e., the first trajectory, is an arc. Correspondingly, the insert can also be an arc-shaped insert. The central angle corresponding to the insert can be 30°-90°, specifically 30°, 40°, 50°, 60°, 70°, 80°, or 90°, but is not limited to these.

[0111] like Figure 3 As shown, the second mating component 300 includes a fixing plate 310 and a spring piece 320 connected to each other, and the spring piece 320 is provided with a second mating part 321. The fixing plate 310 is connected to one of the earphone shell 100 and the insert, and the spring piece 320 is used to abut against the other of the earphone shell 100 and the insert.

[0112] In this disclosure, the fixing position of the fixing plate 310 can be various, and correspondingly, the abutment position of the spring piece 320 can also be various. The arrangement of the fixing plate 310 and the spring piece 320 will be described in detail below with reference to specific embodiments.

[0113] In some embodiments of this disclosure, such as Figure 3 and Figure 4 As shown, the insert has multiple first mating portions 211 spaced apart along a first trajectory. The first mating portions 211 are adapted to the second mating portions 321. The fixing plate 310 is connected to the earphone shell 100. The spring piece 320 abuts against the insert so that when the insert slides along the first trajectory within the arc-shaped cavity 111, the second mating portions 321 can switch between different first mating portions 211. When the user rotates the ear hook 200, the second mating portions 321 switch between different first mating portions 211. At this time, the angle of the ear hook 200 relative to the earphone shell 100 changes, thus satisfying the user's need to adjust the angle of the ear hook 200.

[0114] The first trajectory is arc-shaped, and multiple first mating parts 211 are distributed at equal central angle intervals along the first trajectory. The central angle between two adjacent first mating parts 211 is equal, that is, the arc length between two adjacent first mating parts 211 is equal. The number of first mating parts 211 can be multiple, such as 3 to 5, specifically 3 or 4, but not limited to this.

[0115] The central angle between two adjacent first mating parts 211 is 10°-20°. For example, the central angle between two adjacent first mating parts 211 is 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19° or 20°, but is not limited to these.

[0116] Preferably, such as Figure 4 As shown, there are three first mating parts 211, namely, a left first mating part 2111, a middle first mating part 2112, and a right first mating part 2113 arranged sequentially along the first trajectory. The central angle between the left first mating part 2111 and the middle first mating part 2112 is 20°, and the central angle between the middle first mating part 2112 and the right first mating part 2113 is 20°. The specific positions of the left first mating part 2111, the middle first mating part 2112, and the right first mating part 2113 on the insert can be set according to the position of the ear hook part 220. For example, the middle first mating part 2112 can be set at the connection position between the ear hook part 220 and the insert, and the left first mating part 2111 and the right first mating part 2113 are located on both sides of the middle first mating part 2112. Optionally, the middle first mating part 2112 can be used as the original position, with the left first mating part 2111 corresponding to -20° and the right first mating part 2113 corresponding to +20°. Of course, the angle corresponding to the left first mating part 2111 can also be set to 0°, the angle corresponding to the middle first mating part 2112 to 20°, and the angle corresponding to the right first mating part 2113 to 40°. This disclosure does not limit this. This solution covers the wearing needs of most users in different scenarios, improving the versatility and practicality of the product.

[0117] Optionally, one of the second mating portion 321 and the first mating portion 211 is a protrusion, and the other is a groove adapted to the protrusion. Preferably, the first mating portion 211 is designed as a groove, while the second mating portion 321 is correspondingly designed as a protrusion. With this design, the second mating portion 321 is provided on the spring piece 320 in the form of a protrusion. This arrangement does not significantly affect the thickness of the spring piece 320, thus avoiding an increase in the overall thickness of the spring piece 320 due to the protrusion. At the same time, since the first mating portion 211 is designed as a groove, it is not limited by the thickness of the spring piece 320. Therefore, a groove with an appropriate depth can be provided according to actual needs to ensure a good fit with the protruding portion of the second mating portion 321. The shape of the groove can be various; the groove can be a hemispherical groove or a polygonal prism groove, but is not limited to these.

[0118] The thickness of the spring clip 320 is 0.15mm-0.3mm. Specifically, it can be 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, or 0.30mm, but is not limited to these.

[0119] like Figure 7 As shown, when the protrusion is positioned within the groove, there is a first distance X between the protrusion and the bottom of the groove. The ratio of the first distance X to the depth of the groove is less than or equal to 0.3, and the depth direction of the groove is perpendicular to the insert. The first distance X ensures stable positioning of the ear hook 200 while providing adequate room for movement. This design avoids jamming caused by manufacturing errors or wear during use, improving product reliability and lifespan. It should be noted that, for clarity, Figure 7 The first spacing X is set to be relatively large, but in practice, the first spacing X is smaller than that shown in the figure.

[0120] Optionally, the first spacing X satisfies 0.05mm ≤ X ≤ 0.15mm. Optionally, the first spacing X can be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, or 0.15mm, but is not limited thereto. Preferably, the first spacing is 0.1mm, and the depth of the groove is 0.4mm.

[0121] like Figure 6 As shown, the groove opening edge is set as a first arc-shaped transition surface, and the radius of curvature r1 of the first arc-shaped transition surface satisfies 0.25mm≤r1≤0.35mm. Specifically, the radius of curvature r1 can be 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm or 0.35mm, but is not limited to these.

[0122] Accordingly, such as Figure 5 As shown, the surface of the protrusion is curved; or the edge of the protrusion is set as a second curved transition surface, and the radius of curvature r2 of the second curved transition surface satisfies 0.25mm ≤ r2 ≤ 0.35mm. Specifically, the radius of curvature r2 can be 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, or 0.35mm, but is not limited to these values. The protrusion can be approximately columnar or block-shaped, but is not limited to these forms.

[0123] By setting a first arc-shaped transition surface at the edge of the groove, and setting the surface of the protrusion as an arc or the edge of the protrusion as a second arc-shaped transition surface, the friction between the second mating part 321 and the first mating part 211 can be effectively reduced, improving the smoothness of rotation. The arc-shaped transition surface eliminates the stress concentration phenomenon of traditional right-angle structures through continuous curvature design, reducing the maximum stress value of the contact surface to below the material fatigue limit, theoretically possessing an infinite cycle life. The curved surface fit between the protrusion and the groove forms a hydrodynamic lubrication effect during sliding, with the coefficient of friction approaching that of a ball bearing.

[0124] like Figure 1 and Figure 3 As shown, the fixing plate 310 is connected to the bottom wall 101 of the earphone shell 100. When the second mating part 321 is positioned at the first mating part 211, the spring piece 320 and the fixing plate 310 can be approximately perpendicular. When the second mating part 321 slides out of the first mating part 211 and abuts against the insert, the spring piece 320 is in a compressed state, and the spring piece 320 and the fixing plate 310 form a first included angle α, which satisfies 70°≤α≤80°. Specifically, the first included angle α can be 70°, 71°, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79° or 80°, but is not limited to these.

[0125] The reasonable angle setting helps to optimize the elasticity distribution of the spring 320, further reducing fatigue damage to the spring 320 and providing users with a more stable and reliable wearing experience.

[0126] like Figures 1 to 3 As shown, the fixing plate 310 is detachably connected to the earphone shell 100. The fixing plate 310 can be connected to the earphone shell 100 via a threaded fitting. Specifically, the fixing plate 310 is provided with a first mounting hole 3111, and the bottom wall 101 of the earphone shell 100 is provided with a second mounting hole 1132. The threaded fitting can pass through the first mounting hole 3111 and the second mounting hole 1132 to connect the fixing plate 310 to the earphone shell 100.

[0127] In one embodiment, the arc-shaped cavity 111 is located within the receiving cavity 110. The receiving cavity 110 further includes a fixing cavity 112, and a partition plate 120 is provided between the arc-shaped cavity 111 and the fixing cavity 112. An abutment channel 121 is provided through the partition plate 120. The fixing plate 310 is at least partially located within the fixing cavity 112, and the fixing plate 310 passes through the abutment channel 121 so that the spring piece 320 abuts against the insert piece.

[0128] The partition plate 120 is generally arc-shaped, and its shape can be adapted to the shape of the insert. The partition plate 120 and part of the sidewall of the earphone shell 100 form an arc-shaped cavity 111. The radial dimension of the arc-shaped cavity 111 can be adapted to the thickness of the insert to stably confine the insert within the arc-shaped cavity 111 and allow it to slide stably along the arc-shaped cavity 111. The abutment channel 121 can be provided in the middle region of the partition plate 120. The shape of the abutment channel 121 can be designed according to the shape of the spring 320 and the connection between the spring 320 and the fixing plate 310.

[0129] The fixing cavity 112 is provided with a mounting groove 113, the shape and size of which are adapted to the shape and size of the fixing plate 310, and the fixing plate 310 is located within the mounting groove 113. A boss 1131 is provided within the mounting groove 113, and a second mounting hole 1132 is provided on the boss 1131. The fixing plate 310 is placed on the boss 1131 and connected to it via a threaded component. The boss 1131 can be a cylindrical platform, but is not limited to this.

[0130] The fixing plate 310 includes a horizontal plate 311 and two side plates 312 connected to both sides of the horizontal plate 311 in a first direction. The horizontal plate 311 is mounted on the boss 1131, and the side plates 312 extend toward the bottom wall of the earphone shell 100 and fit against the groove wall of the mounting groove 113. The groove wall of the mounting groove 113 may be perpendicular to the bottom wall 101 of the earphone shell 100. A spring piece 320 is connected to one side of the horizontal plate 311 in a second direction, which may be perpendicular to the first direction. A first mounting hole 3111 is provided on the horizontal plate 311.

[0131] In another embodiment, the arcuate cavity 111 is located outside the receiving cavity 110 (not shown). The radial dimension of the arcuate cavity 111 can be adapted to the thickness of the insert to stably confine the insert within the arcuate cavity 111 and allow it to slide stably along the arcuate cavity 111. The side wall 102 of the earphone shell 100 may be provided with an abutment channel, and the fixing plate 310 can be fixed to the bottom wall of the earphone shell 100, with the fixing plate 310 passing through the abutment channel so that the spring 320 abuts against the insert.

[0132] In other embodiments of this disclosure, the sidewall of the arc-shaped cavity 111 is provided with a plurality of first mating parts (not shown) distributed at intervals along a first trajectory. The first mating parts are adapted to the second mating parts. The fixing plate 310 is connected to the insert. The spring piece 320 is used to abut against the cavity wall of the arc-shaped cavity 111 so that when the insert slides along the first trajectory in the arc-shaped cavity 111, the second mating parts can switch between different first mating parts.

[0133] The thickness of the spring clip 320 is 0.15mm-0.3mm. Specifically, it can be 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, or 0.30mm, but is not limited to these.

[0134] Preferably, there are three first mating parts, namely a left first mating part, a middle first mating part, and a right first mating part arranged sequentially along the first trajectory. The central angle between the left and middle first mating parts is 20°, and the central angle between the middle and right first mating parts is 20°. The specific positions of the left, middle, and right first mating parts on the side wall of the arc-shaped cavity 111 can be set according to the position of the ear hook 220. For example, the middle first mating part can correspond to the connection position between the ear hook 220 and the insert, and the left and right first mating parts are located on both sides of the middle first mating part. Optionally, the middle first mating part can be used as the original position, with the left first mating part corresponding to -20° and the right first mating part corresponding to +20°. Of course, the angle corresponding to the left first mating part can also be set to 0°, the angle corresponding to the middle first mating part to 20°, and the angle corresponding to the right first mating part to 40°. This solution covers the wearing needs of most users in different scenarios, improving the versatility and practicality of the product.

[0135] Optionally, one of the second mating part and the first mating part is a protrusion, and the other is a groove adapted to the protrusion. Preferably, the first mating part is designed as a groove, while the second mating part is correspondingly designed as a protrusion.

[0136] When the protrusion is positioned within the groove, there is a second gap between the protrusion and the bottom of the groove. The ratio of this second gap to the depth of the groove is less than or equal to 0.3, and the depth direction of the groove is perpendicular to the sidewall of the arc-shaped cavity 111. This second gap ensures stable positioning of the ear hook 200 while providing adequate space for movement. This design avoids jamming caused by manufacturing errors or wear during use, improving product reliability and lifespan.

[0137] Optionally, the second spacing Y satisfies 0.05mm ≤ Y ≤ 0.15mm. Optionally, the second spacing Y can be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, or 0.15mm, but is not limited thereto. Preferably, the second spacing is 0.1mm, and the depth of the groove is 0.4mm.

[0138] The groove opening edge is set as an arc-shaped transition surface, and the radius of curvature of the arc-shaped transition surface is 0.25mm-0.35mm. Specifically, it can be 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm or 0.35mm, but is not limited to these.

[0139] Accordingly, the raised surface is an arc surface; or the raised edge is set as an arc transition surface, and the radius of curvature of the arc transition surface is 0.25mm-0.35mm. Specifically, it can be 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm or 0.35mm, but is not limited to these.

[0140] By setting an arc-shaped transition surface at the edge of the groove, and by making the surface of the protrusion arc-shaped or setting the edge of the protrusion as an arc-shaped transition surface, the friction between the second mating part and the first mating part can be effectively reduced, improving the smoothness of rotation. The arc-shaped transition surface eliminates the stress concentration phenomenon of traditional right-angle structures through continuous curvature design, reducing the maximum stress value of the contact surface to below the material fatigue limit, theoretically possessing an infinite cycle life. The curved surface fit between the protrusion and the groove creates a hydrodynamic lubrication effect during sliding, with the coefficient of friction approaching that of a ball bearing.

[0141] When the second mating part is positioned at the first mating part, the spring piece 320 and the fixing plate 310 can be approximately perpendicular. When the second mating part slides out of the first mating part and abuts against the cavity wall of the arc-shaped cavity 111, the spring piece 320 is in a compressed state, and the spring piece 320 and the fixing plate 310 form a second included angle β, which satisfies 70°≤β≤80°. Specifically, the second included angle β can be 70°, 71°, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79° or 80°, but is not limited to these.

[0142] The reasonable angle setting helps to optimize the elasticity distribution of the spring 320, further reducing fatigue damage to the spring 320 and providing users with a more stable and reliable wearing experience.

[0143] The fixing plate 310 is detachably connected to the insert. The fixing plate 310 can be connected to the insert via a threaded connection, but is not limited to this.

[0144] In some embodiments of this disclosure, the bottom wall 101 of the earphone shell 100 is provided with a plurality of first mating portions (not shown) distributed at intervals along a first trajectory. The first mating portions are adapted to the second mating portions. The fixing plate 310 is connected to the insert. The spring piece 320 is used to abut against the bottom wall 101 of the earphone shell 100 so that when the insert slides along the first trajectory in the arc-shaped cavity 111, the second mating portion can switch between different first mating portions.

[0145] The thickness of the spring clip 320 is 0.15mm-0.3mm. Specifically, it can be 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, or 0.30mm, but is not limited to these.

[0146] Preferably, there are three first mating parts, namely a left first mating part, a middle first mating part, and a right first mating part arranged sequentially along the first trajectory. The central angle between the left and middle first mating parts is 20°, and the central angle between the middle and right first mating parts is 20°. The specific positions of the left, middle, and right first mating parts on the bottom wall of the earphone shell 100 can be set according to the position of the ear hook 220. For example, the middle first mating part can correspond to the connection position between the ear hook 220 and the insert, and the left and right first mating parts are located on both sides of the middle first mating part. Optionally, the middle first mating part can be used as the original position, with the left first mating part corresponding to -20° and the right first mating part corresponding to +20°. Of course, the angle corresponding to the left first mating part can also be set to 0°, the angle corresponding to the middle first mating part to 20°, and the angle corresponding to the right first mating part to 40°. This solution covers the wearing needs of most users in different scenarios, improving the versatility and practicality of the product.

[0147] Optionally, one of the second mating part and the first mating part is a protrusion, and the other is a groove adapted to the protrusion. Preferably, the first mating part is designed as a groove, while the second mating part is correspondingly designed as a protrusion.

[0148] When the protrusion is positioned within the groove, there is a third gap between the protrusion and the bottom of the groove. The ratio of this third gap to the depth of the groove is less than or equal to 0.3, and the depth direction of the groove is perpendicular to the bottom wall of the earphone shell 100. This third gap ensures stable positioning of the ear hook 200 while providing adequate room for movement. This design avoids jamming caused by manufacturing errors or wear and tear, improving product reliability and lifespan.

[0149] Optionally, the third spacing Z satisfies 0.05mm ≤ Z ≤ 0.15mm. Optionally, the third spacing Z can be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, or 0.15mm, but is not limited thereto. Preferably, the third spacing is 0.1mm, and the depth of the groove is 0.4mm.

[0150] The groove opening edge is set as an arc-shaped transition surface with a radius of curvature of 0.25mm-0.35mm. Specifically, it can be 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, or 0.35mm, but is not limited to these.

[0151] Accordingly, the raised surface is an arc surface; or the raised edge is set as an arc-shaped transition surface, the radius of curvature of which is 0.25mm-0.35mm. Specifically, it can be 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm or 0.35mm, but is not limited to these.

[0152] By setting an arc-shaped transition surface at the edge of the groove, and by making the surface of the protrusion arc-shaped or setting the edge of the protrusion as an arc-shaped transition surface, the friction between the second mating part and the first mating part can be effectively reduced, improving the smoothness of rotation. The arc-shaped transition surface eliminates the stress concentration phenomenon of traditional right-angle structures through continuous curvature design, reducing the maximum stress value of the contact surface to below the material fatigue limit, theoretically possessing an infinite cycle life. The curved surface fit between the protrusion and the groove creates a hydrodynamic lubrication effect during sliding, with the coefficient of friction approaching that of a ball bearing.

[0153] When the second mating part is positioned at the first mating part, the spring piece 320 is in a free state. That is, the spring piece 320 is neither compressed nor stretched. Optionally, in this state, the spring piece 320 and the fixing plate 310 can be approximately perpendicular. When the second mating part slides out of the first mating part and abuts against the bottom wall 101 of the earphone shell 100, the spring piece 320 is in a compressed state, and the spring piece 320 and the fixing plate 310 form a third included angle γ, which satisfies 70°≤γ≤80°. Specifically, the third included angle γ can be 70°, 71°, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79° or 80°, but is not limited to these.

[0154] The fixing plate 310 is detachably connected to the insert. The fixing plate 310 can be connected to the insert via a threaded connection, but is not limited to this.

[0155] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. An ear-hanging earphone, characterized by, include: The earphone shell has a cavity for accommodating electronic components; An ear hook includes a first mating member and an ear hook portion that are connected to each other. The ear hook is slidably disposed on the earphone shell via the first mating member, and the first mating member is slidably disposed on the periphery of the earphone shell. The ear hook portion is at least partially exposed outside the earphone shell. The second mating component is disposed between the earphone shell and the ear hook; During the sliding process of the ear hook, the second mating component and the first mating component are adjusted to multiple positions. The distance between the mating point of the second mating component and the first mating component and the side wall of the earphone shell is less than the distance between them and the center point of the earphone shell; The mating direction of the second mating component and the first mating component intersects with the side wall of the earphone shell.

2. The ear-hanging earphone according to claim 1, characterized in that, The earphone shell also includes an arc-shaped cavity, which is located on the side wall of the earphone shell; The first mating component is an insert, which is at least partially located within the arcuate cavity. The insert is at least partially attached to the sidewall of the arcuate cavity. The insert can slide along a first trajectory within the arcuate cavity. The first trajectory is arcuate, and the insert is an arcuate piece with the same curvature as the first trajectory. The insert is set at an angle to the bottom wall of the earphone shell.

3. The ear-hanging earphone of claim 2, wherein, The second mating component is an elastic component, which elastically abuts against the earphone shell and the insert, and the elastic component is provided with a second mating part; The earphone shell or the insert is provided with a first mating part, the first mating part is adapted to the second mating part, and the number of at least one of the second mating part and the first mating part is multiple; When the insert slides along the first trajectory within the arc-shaped cavity, the second mating part engages with the first mating part to achieve multi-position adjustment of the ear hook.

4. The ear-hook earphone according to claim 3, characterized in that, The elastic element includes a fixed plate and a spring piece that are connected to each other, and the second mating part is provided on the spring piece; The fixing plate is connected to one of the earphone shell and the insert, and the spring is used to abut against the other of the earphone shell and the insert; The first mating part is provided on the side wall of the arc-shaped cavity, the bottom wall of the earphone shell, or the insert.

5. The ear-hanging earphone of claim 4, wherein The insert has multiple first mating parts spaced apart along the first trajectory, the fixing plate is connected to the earphone shell, and the spring is used to abut against the insert.

6. The ear-hanging earphone of claim 4, wherein, The sidewall of the arc-shaped cavity is provided with a plurality of first mating parts distributed at intervals along the first trajectory. The fixing plate is connected to the insert, and the spring piece is used to abut against the cavity wall of the arc-shaped cavity.

7. The ear-hanging earphone of claim 4, wherein The bottom wall of the earphone shell is provided with a plurality of first mating parts distributed at intervals along the first trajectory. The fixing plate is connected to the insert, and the spring is used to abut against the bottom wall of the earphone shell.

8. The ear-hanging earphone of claim 3, wherein, The number of the first mating parts is multiple, and the multiple first mating parts are arranged at intervals along the first trajectory; the number of the second mating parts is one. When the insert slides along the first trajectory within the arc-shaped cavity, the second mating part switches between different first mating parts; The first trajectory is an arc shape, and multiple first mating parts are distributed at equal central angles along the first trajectory.

9. The ear-hanging earphone of claim 3, wherein, In the second mating part and the first mating part, one is a protrusion and the other is a groove adapted to the protrusion. When the protrusion is positioned in the groove, there is a gap between the protrusion and the bottom of the groove.

10. The ear-hanging earphone of claim 9, wherein, The groove opening edge is set as a first arc-shaped transition surface, and the radius of curvature r1 of the first arc-shaped transition surface satisfies 0.25mm≤r1≤0.35mm; The surface of the protrusion is curved; or The protruding edge is configured as a second arc-shaped transition surface, and the radius of curvature r2 of the second arc-shaped transition surface satisfies 0.25mm≤r2≤0.35mm.

11. The ear-hanging earphone of claim 4, wherein, The fixing plate is connected to the bottom wall of the earphone shell; When the second mating part slides out of the first mating part and abuts against the insert, the spring is in a compressed state, and the spring and the fixing plate form a first included angle α, which satisfies 70°≤α≤80°.

12. The ear-hanging earphone of claim 5, wherein, The earphone shell has a bottom wall and a side wall connected to the bottom wall. The bottom wall and the side wall of the earphone shell form the receiving cavity, and the arc-shaped cavity is located within the receiving cavity. The receiving cavity further includes a fixed cavity, and a partition plate is provided between the arc-shaped cavity and the fixed cavity, with an abutment channel extending through the partition plate; The fixing plate is at least partially located within the fixing cavity, and the fixing plate passes through the abutting channel to abut the spring against the insert.

13. The ear-hanging earphone of claim 12, wherein, The fixing cavity is provided with a mounting groove, the shape and size of which are adapted to the shape and size of the fixing plate, and the fixing plate is located in the mounting groove.

14. The ear-hanging earphone of claim 2, wherein, The earphone shell has a bottom wall and a side wall connected to the bottom wall, and the bottom wall and the side wall of the earphone shell form the receiving cavity; The arc-shaped cavity is located inside the receiving cavity, or the arc-shaped cavity is located outside the side wall of the earphone shell.

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