earphones

Abstract

The present application provides an earphone (100), which includes a main module (1) and an ear hook (2). The ear hook (2) is curved and has a first end (201) connected to the main module (1) and a second end (202) spaced apart from the first end (201). The ear hook (2) is placed on a user's ear. The ear hook (2) includes an elastic frame (21) extending along the extension direction of the ear hook (2), and a covering member (22) covering the elastic frame (21) and having a buffer cavity (220) installed therein.

Description

[Technical Field]

[0001] The present application relates to the technical field of electronic devices, and more particularly to earphones. [Background technology]

[0002] As electronic devices continue to become more widespread, they have become indispensable social and entertainment tools in people's daily lives, and people's demands for electronic devices are also increasing. Electronic devices such as earphones and smart glasses are widely applied in people's daily lives, and when used in combination with terminal devices such as mobile phones and computers, users can enjoy a feast of hearing.

[0003] However, conventional earphones with ear hooks have difficulty achieving both stability and comfort, and therefore cannot meet the needs. Summary of the Invention

[0004] The present application provides earphones including a main module and an ear hook. The ear hook is curved and has a first end connected to the main module and a second end spaced from the first end, and is placed on a user's ear. The ear hook includes an elastic frame extending along the extension direction of the ear hook, and a covering member covering the elastic frame and having a buffer cavity.

[0005] According to the above embodiment, by providing an ear hook including an elastic frame and a covering member, each of which has a certain elastic limit and is elastically deformable within its respective elastic limits, the ear hook can elastically deform to fit closely to the ear when the user wears the earphone, effectively improving wearing comfort and stability. By providing a buffer cavity in the covering member, the covering member can more easily elastically deform and adapt to different ear widths when the user wears the earphone, thereby better fitting to the user's ear and achieving a self-adaptive function. Furthermore, the presence of the buffer cavity increases the contact area between the covering member and the user's ear when the covering member is in contact with the ear, reducing the pressure applied by the covering member to the ear, thereby improving wearing comfort for the user.

[0006] In some embodiments, the buffer cavity is closer to the second end of the first and second ends.

[0007] In some embodiments, the covering member has a rear covering portion located behind the ear portion in the worn state, the second end is located in the rear covering portion, and the buffer cavity is formed in the rear covering portion.

[0008] In some embodiments, the main body module includes a connection end connected to the first end of the earhook and a free end remote from the connection end, at least a portion of the rear covering portion is located opposite the free end, and at least a portion of the buffer cavity is located in the portion of the rear covering portion located opposite the free end.

[0009] In some embodiments, the free end is positioned so as to enter the concha cavity of the ear part when worn, the free end and the rear covering part are positioned so as to jointly hold the ear region from both the front and rear sides of the ear region corresponding to the concha cavity when worn, and the buffer cavity is located in the part of the rear covering part that holds the ear region.

[0010] In some embodiments, the main body module has a length direction, a width direction, and a thickness direction that are perpendicular to each other, and when the main body module is installed, it is stacked on the ear portion along the thickness direction, and the orthogonal projection of the buffer cavity onto a reference plane perpendicular to the length direction partially overlaps with the orthogonal projection of the free end onto the reference plane.

[0011] In some embodiments, the main module has length, width, and thickness directions that are perpendicular to each other, the main module is stacked on the ear portion along the thickness direction when worn, the main module has an inner surface that faces the ear portion along the thickness direction when worn, an outer surface that is away from the ear portion, and upper and lower surfaces that connect the inner and outer surfaces, the upper surface faces the ear hook, and the upper and lower surfaces are installed with a gap in the width direction, the covering member is divided into a front covering portion and a rear covering portion by the extension plane of the upper surface, a first end is located in the front covering portion and a second end is located in the rear covering portion, and a buffer cavity is formed in the rear covering portion.

[0012] In some embodiments, the buffer cavity has a width dimension greater than the width dimension of the body module.

[0013] In some embodiments, the covering member includes a front covering portion and a rear covering portion, the front covering portion covers the elastic frame, the front covering portion and the rear covering portion are connected in order in the extension direction, the rear covering portion does not cover the elastic frame, and the buffer cavity is formed in the rear covering portion.

[0014] In some embodiments, the ear hook includes a fixing block, the fixing block being fixed to one end of the elastic frame adjacent to the second end, the front covering part covering the fixing block, and the extension length of the rear covering part along the extension direction is greater than the extension length of the fixing block along the extension direction.

[0015] In some embodiments, the ratio of the extension length along the extension direction of the rear covering part to the extension length along the extension direction of the front covering part is not less than 1 / 5 and not more than 1 / 2.

[0016] In some embodiments, the extension length of the front covering-part along the extension direction is 50 mm to 70 mm, and the extension length of the rear covering-part is 10 mm to 30 mm.

[0017] In some embodiments, the ear hook further includes an insert member, the insert member being fixed to one end of the elastic frame adjacent to the first end, and the insert member being inserted into and fixed to the main module.

[0018] In some embodiments, the ear hook includes a fixing block, the fixing block is installed at one end proximate to the second end of the elastic frame, the covering member covers the fixing block, and the fixing block is located on a side of the buffer cavity away from the main body module.

[0019] In some embodiments, the fixing block is located between both ends of the cushioning cavity along the extension direction of the ear hook, and is closer to the end that is closer to the second end of the cushioning cavity.

[0020] In some embodiments, the buffer cavity is hermetically located and formed inside the covering member, or the buffer cavity is located in the form of a hole or a groove.

[0021] In some embodiments, the main body module has a length direction, a width direction, and a thickness direction that are perpendicular to each other, and the main body module is stacked on the ear portion along the thickness direction when installed, and the buffer cavity is installed in the form of a hole and penetrates the covering member along the thickness direction.

[0022] In some embodiments, the buffer cavity is configured as an elongated curved through-hole, and the direction of curvature of the buffer cavity coincides with the direction of curvature of the portion of the covering member in which the buffer cavity is formed.

[0023] In some embodiments, the number of the buffer cavities is at least two, and the at least two buffer cavities are spaced apart along the extension direction; and / or the ear hook further includes a filling member, the hardness of which is less than the hardness of the covering member, and the filling member is located within the buffer cavity; and / or the covering member has an inner surface facing the main module and an outer surface away from the inner surface, and the inner surface is located closer to the buffer cavity than the outer surface.

[0024] In some embodiments, the elastic frame has a predetermined radial direction perpendicular to the extension direction of the elastic frame and passing through the buffer cavity, and the buffer cavity is spaced apart from the elastic frame in the predetermined radial direction.

[0025] In some embodiments, the buffer cavity is closer to the body module in a predetermined radial direction than the elastic frame so as to be closer to the ear portion in the mounted state.

[0026] In some embodiments, the covering member includes a first covering portion and a second covering portion located on either side of the buffer cavity along a predetermined radial direction, the first covering portion and the second covering portion being spaced apart to form the buffer cavity, the first covering portion being closer to the main module than the second covering portion and contacting the ear portion, and the elastic frame being perforated in the second covering portion.

[0027] In some embodiments, the resilient frame extends from the first end to the second end.

[0028] In some embodiments, the ear hook includes a fixed block fixed to one end of the elastic frame adjacent to the second end, the fixed block being bent and extending from the elastic frame toward the buffer cavity, and being bent and extending above the buffer cavity in the direction of extension from the first end to the second end of the ear hook.

[0029] In some embodiments, one end of the elastic frame adjacent to the second end is inserted into the fixed block, and the circumferential dimension of the one end of the fixed block away from the elastic frame is larger than the circumferential dimension of the one end of the fixed block inserted into the elastic frame.

[0030] Preferably, a first positioning hole is formed in the ear hook, a second positioning hole is formed in the fixed block, the second positioning hole is located at one end of the fixed block away from the elastic frame, and the first positioning hole and the second positioning hole are arranged opposite to each other.

[0031] In some embodiments, the ear hook includes an insert member, and one end of the elastic frame adjacent to the first end is inserted into the insert member, and the extension direction of the one end of the elastic frame adjacent to the first end intersects with the extension direction of the insert member.

[0032] In some embodiments, the main module has length, width and thickness directions that are perpendicular to each other, and the main module is stacked on the ear portion along the thickness direction when worn, and the extension direction and length direction of one end adjacent to the first end of the elastic frame form a first angle facing the ear hook, and the extension direction and length direction of the insert member form a second angle facing the ear hook, and the first angle is smaller than the second angle.

[0033] In some embodiments, the first angle is between 70° and 110°, and the second angle is between 90° and 130°.

[0034] In order to more clearly describe the technical means in the embodiments of the present application, the following briefly introduces the drawings necessary for describing the embodiments. Obviously, the drawings in the following description are only a part of the embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without any creative efforts. [Brief explanation of the drawings]

[0035] [Figure 1] 1 is a schematic diagram of the front profile of a user's ear; [Figure 2]1 is a schematic diagram of the overall structure of an embodiment of the earphone of the present application; [Figure 3] 1 is a schematic diagram of the internal structure of an embodiment of the earphone of the present application. [Figure 4] 1 is a schematic diagram illustrating the configuration of a first housing of an earphone according to an embodiment of the present invention. [Figure 5] FIG. 3 is a schematic cross-sectional view taken along the AA section in FIG. 2. [Figure 6] 1 is a schematic configuration diagram of an embodiment of an earphone according to the present invention from one viewpoint. [Figure 7] FIG. 1 is a schematic diagram illustrating the configuration of a charging case used in combination with an embodiment of the earphone of the present application. [Figure 8] 1 is a schematic diagram of the three-dimensional structure of an embodiment of the earphone of the present application. [Figure 9] FIG. 9 is a schematic side view of the earphone shown in FIG. 8. [Figure 10] FIG. 9 is a schematic bottom view of the earphone shown in FIG. 8. [Figure 11a] FIG. 9 is a schematic diagram of the ear hook shown in FIG. 8. [Figure 11b] 9 is another schematic diagram of the ear hook shown in FIG. 8. FIG. [Figure 12] FIG. 9 is a schematic diagram of the elastic frame shown in FIG. 8. [Figure 13] FIG. 2 is a schematic diagram of another three-dimensional structure of an embodiment of the earphone of the present application. [Figure 14] FIG. 2 is a schematic diagram of another three-dimensional structure of an embodiment of the earphone of the present application. [Figure 15a] 11 is a schematic cross-sectional view taken along the VV cutting line of the earphone shown in FIG. 10. FIG. [Figure 15b] 11 is another schematic cross-sectional view taken along the VV cutting line of the earphone shown in FIG. 10. FIG. [Figure 16] 1 is a schematic diagram of the three-dimensional structure of an embodiment of the earphone of the present application. [Figure 17] 17 is a schematic cross-sectional view taken along the cross section PP of the earphone shown in FIG. 16. [Figure 18] FIG. 2 is a schematic diagram of another three-dimensional structure of an embodiment of the earphone of the present application. [Figure 19] FIG. 19 is a schematic side view of the earphone shown in FIG. 18. [Figure 20] FIG. 2 is a schematic diagram of another three-dimensional structure of an embodiment of the earphone of the present application. [Figure 21] 1 is a schematic diagram of the three-dimensional structure of an embodiment of an earphone according to the present application; [Figure 22] FIG. 22 is a schematic top view of the earphone shown in FIG. 21. [Figure 23] FIG. 22 is a schematic side view of the ear hook shown in FIG. 21. [Figure 24] 1 is a schematic diagram of an embodiment of the earphone according to the present invention, in which an elastic frame, a fixing block, and an inserting member are assembled. [Figure 25] FIG. 22 is a schematic diagram of the three-dimensional structure of the ear hook shown in FIG. 21. [Figure 26] FIG. 1 is a schematic top view of another embodiment of an earphone according to the present application. [Figure 27] 1 is a schematic diagram of a circuit structure of an embodiment of an electronic device of the present application. [Figure 28] 1 is a schematic diagram of the circuit structure of an embodiment of the interface circuit of the present application; [Figure 29] FIG. 2 is another schematic diagram of an embodiment of the interface circuit of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0036] The present application will be described in more detail below with reference to the drawings and examples. Note that the following examples are merely for the purpose of illustrating the present application and are not intended to limit the scope of the present application. Similarly, the following examples are merely a portion of the embodiments of the present application, and are not intended to be all of the embodiments. All other embodiments that can be obtained by a person skilled in the art without any creative effort are included in the scope of protection of the present application.

[0037] A reference to an "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Those skilled in the art can explicitly or implicitly understand that the embodiment described in this application can be combined with other embodiments.

[0038] As shown in FIG. 1 , a user's ear 500 may include physiological parts such as an external auditory canal 501, a cavity of the concha 502, a concha navicularis 503, a triangular fossa 504, an antihelix 505, a scapha 506, a helix 507, and a tragus 508. The external auditory canal 501 has a certain depth and extends to the eardrum of the ear. However, for ease of explanation, as shown in FIG. 1 , in this application, unless otherwise specified, the external auditory canal 501 specifically refers to the entrance away from the eardrum (i.e., the ear canal), as shown in FIG. 1 . Furthermore, physiological parts such as the cavity of the concha 502, the concha navicularis 503, and the triangular fossa 504 have certain volumes and depths, and the cavity of the concha 502 is in direct communication with the external auditory canal 501; that is, the aforementioned ear canal can be simply considered to be located at the bottom of the cavity of the concha 502.

[0039] Furthermore, because different users may have individual differences, the ear sections may have different dimensions, such as shapes and sizes. To facilitate explanation and reduce (eventually eliminate) individual differences between different users, a simulator including a head and its (left and right) ear sections, such as GRAS 45BC KEMAR, may be manufactured based on the ANSI: S3.36, S3.25, and IEC: 60318-7 standards. Therefore, in this application, descriptions such as "a user is wearing earphones 100," "the earphones 100 are in a wearing state," and "in a wearing state" may refer to the earphones 100 described in this application being worn in the ear sections of the simulator. Naturally, because different users have individual differences, there may be certain differences between the situation in which the earphones 100 are worn by different users and the situation in which the earphones 100 are worn in the ear sections of the simulator, and such differences should be tolerated.

[0040] As shown in FIGS. 2 to 5 , the earphone 100 may include a main module 1 and an ear hook 2, and the main module 1 may include a housing assembly 10 and a speaker 13. The main module 1 may include a battery 14. The ear hook 2 may be hook-shaped, and the earphone 100 may be attached to a user's ear via the ear hook 2. The ear hook 2 may be connected to the housing assembly 10. When worn, the housing assembly 10 is located in front of the ear, and at least a portion of the ear hook 2 is located behind the user's ear, allowing the earphone 100 to be hung on the ear. The housing assembly 10 may also form an accommodating space 101. The speaker 13 may be located in the accommodating space 101 to provide air-conducted sound to the ear canal of the user's ear. The battery 14 may be located in the accommodating space 101.

[0041] To facilitate the description of the shape of the housing assembly 10, the present application defines the housing assembly 10 as having a first direction X and a second direction Y, which may be perpendicular to each other (see FIG. 5). The first direction X may refer to the length direction of the housing assembly 10, and the second direction Y may refer to the thickness direction of the housing assembly 10.

[0042] The housing assembly 10 is stacked in front of the user's ear along the second direction Y. The housing assembly 10 further has a first end 102 and a second end 103 located on opposite sides along the first direction X. The first end 102 may refer to a portion that faces the user's concha 502 when worn, and the second end 103 may refer to a portion that is farther from the user's concha 502 than the first end 102. The second end 103 may be connected to the ear hook 2 and may be referred to as the connected end 103 below, and the first end 102 may be referred to as the free end 102 below.

[0043] At least a portion of first end 102 of housing assembly 10 enters concha cavity 502 of the user's ear, leaving the ear canal of the user's ear open. Having the user's ear canal open means that housing assembly 10 does not completely block the ear canal. Because there are individual differences among different users, when earphone 100 is worn by different users, housing assembly 10 may partially block the ear canal, but the ear canal will still not be completely blocked.

[0044] As described above, when a user wears the earphone 100, the ear hook 2 is hooked on the user's ear with a portion located behind the user's ear, the housing assembly 10 is located in front of the user's ear, and the second end 103 of the housing assembly 10 can enter the user's concha cavity 502. The ear hook 2 may also be connected to the second end 103 of the housing assembly 10 or a portion adjacent to the second end 103, and depending on the shape of the ear, the shape of the ear hook 2, and limitations on the attachment position of the first end 102 of the housing assembly 10, the second end 103 of the housing assembly 10 is usually located in front of, above, or above and in front of the first end 102 when worn.

[0045] Preferably, the battery 14 may provide power to the speaker 13. Preferably, when worn, the first end 102 is closer to the concha 502 of the user's ear than the second end 103, and the speaker 13 is located closer to the first end 102 and the battery 14 is located closer to the second end 103. In this case, it is more advantageous for the speaker 13 to generate air-conducted sound in the user's ear canal.

[0046] Preferably, the speaker 13 and the battery 14 are installed in the accommodation space 101 at an interval along the first direction X. In this case, both the speaker 13 and the battery 14 can be assembled into the housing assembly 10, improving assembly efficiency and reducing the use of lead wires.

[0047] Preferably, the housing assembly 10 may have a partition wall 104 to separate the speaker 13 and the battery 14. In this case, the partition wall 104 separates the battery 14 from the speaker 13, and can reduce the possibility that water vapor in the speaker 13 will contaminate the battery 14.

[0048] Preferably, as shown in FIG. 5, the speaker 13 has a first axis ZX1. The battery 14 has a second axis ZX2. The first axis ZX1 and the second axis ZX2 each have a positive direction that faces the user's ear when worn. The speaker 13 is installed so that the positive direction of the first axis ZX1 intersects with the projection of the second axis ZX2 onto the reference plane defined by the first direction X and the second direction Y. The first axis ZX1 is parallel to the vibration direction of the diaphragm of the speaker 13 and may be an axis passing through the center of gravity of the speaker 13 or the geometric center or centroid of one of its end faces (e.g., a circular end face or a racetrack-shaped end face). The second axis ZX2 may refer to the axis of symmetry of the battery 14 or an axis passing through the geometric center or centroid of its two end faces.

[0049] In this case, the speaker 13 and the battery 14 are installed at a relative incline, which is advantageous in reducing the length of the housing assembly 10 in the first direction X compared to when the speaker 13 and the battery 14 are arranged side by side, and furthermore, the housing assembly 10 can not only be stably supported when worn, but can also be inserted into the cavity of the concha 502.

[0050] Preferably, the intersection angle θ between the positive direction of the first axis ZX1 and the positive direction of the second axis ZX2 projected onto the reference plane is an acute angle. Preferably, the intersection angle θ between the positive direction of the first axis ZX1 and the positive direction of the second axis ZX2 projected onto the reference plane is located on the side of the housing assembly 10 facing the user's ears. Preferably, the intersection angle θ between the positive direction of the first axis ZX1 and the positive direction of the second axis ZX2 may be 10° to 14°, or 11° to 14°.

[0051] In this case, the inclination of the speaker 13 relative to the battery 14 increases, and the projection length of the speaker 13 in the first direction X gradually decreases, which is advantageous for reducing the length of the housing assembly 10 in the first direction X.

[0052] Preferably, on the reference plane, the radial dimension of the speaker 13 is larger than the radial dimension of the battery 14, the second direction Y has a positive direction facing the user's ear, and the intersection angle θ between the projection of the first axis ZX1 onto the reference plane in the positive direction and the positive direction of the second direction Y is larger than the intersection angle θ between the projection of the second axis ZX2 onto the reference plane in the positive direction and the positive direction of the second direction Y. Preferably, the second axis ZX2 is installed parallel to the second direction Y. The radial dimension of the speaker 13 may refer to the length in a direction perpendicular to the first axis ZX1 in a cross section on the reference plane. The radial dimension of the battery 14 may refer to the length in a direction perpendicular to the second axis ZX2 in a cross section on the reference plane.

[0053] In this case, since the radial dimension of the speaker 13 is larger than the radial dimension of the battery 14, when the speaker 13 is arranged at an angle with respect to the second direction Y, the degree of change in the projected length of the battery 14 in the first direction X is greater than when the battery 14 is arranged at an angle with respect to the second direction Y, which is advantageous for reducing the length of the housing assembly 10 in the first direction X. Furthermore, by slanting the speaker 13 with respect to the battery 14, the second end 103 of the speaker 13 (where the battery 14 is installed) can be brought into close contact with the skin in front of the user's tragus 508, and the diaphragm of the speaker 13 can be directed approximately toward the user's ear canal, which is advantageous for the sound of the speaker 13 to be transmitted to the user's ear canal.

[0054] Preferably, the earphone 100 further includes a circuit board 15 installed in the housing space 101. When power is supplied from the battery 14, the circuit board 15 controls the speaker 13 to vibrate and generate sound. The circuit board 15 may also include a radio frequency module for communication with a mobile terminal.

[0055] Preferably, the circuit board 15 is installed in the housing assembly 10 and is located on the side of the speaker 13 and the battery 14 that is farther from the user's ear, and its projection along the second direction Y overlaps with the speaker 13 and the battery 14. The projection of the circuit board 15 may partially or completely overlap with the speaker 13 and the battery 14. In this case, the speaker 13 can be installed on the side closest to the user's ear, which is advantageous for transmitting sound to the user's ear.

[0056] Specifically, the housing assembly 10 includes a first housing 111 and a second housing 112 that engage with each other along the second direction Y. The first housing 111 is located on the side of the second housing 112 that is farther from the user's ear. The speaker 13 and the battery 14 may be fixed to the first housing 111, which is closer to the user's ear than the second housing 112 when worn, and the circuit board 15 is fixed to the second housing 112. In this case, this can facilitate assembly and disassembly and repair of the earphones 100. Preferably, the circuit board 15 is fixed to the second housing 112 of the housing assembly 10 by hot melt.

[0057] 6, the earphone 100 preferably further includes a charging port 16 installed in the first housing 111 and a magnetic attraction element 17 installed along the second axis ZX2 between the battery 14 and the first housing 111. In this case, the earphone 100 can be used in combination with a charging case that has a magnetic attraction charging function. The charging port 16 may penetrate the outer wall surface LS2 of the first housing 111 and be exposed from the outer wall surface LS2 for contact charging.

[0058] 7, charging case 900 may include a lower housing assembly 910 and an upper housing assembly 920. The lower housing assembly 910 may be provided with two profiling grooves 911 for accommodating earphones 100. The upper housing assembly 920 may be fitted over the lower housing assembly 910 to seal the profiling grooves 911.

[0059] Furthermore, the charging case 900 may include a main control circuit board installed in the lower housing assembly 910 and electrode terminals 912 installed on the main control circuit board. Multiple sets of electrode terminals 912, for example, two sets, may be installed according to needs. Accordingly, when any earphone 100 is placed in the charging case 900, the charging port 16 of the earphone 100 contacts the electrode terminals 912 of the charging case 900 in a one-to-one correspondence, thereby satisfying functional needs such as charging and detection. Accordingly, the electrode terminals 912 may include a positive power supply terminal and a negative power supply terminal, and may further include a detection terminal. The lines connecting these two terminals may form a triangle, for example, an equilateral triangle, or may be arranged along a straight line with a gap between them, for example, may be collinear with a gap between them.

[0060] Preferably, the electrode terminal 912 may be exposed from the contoured groove 911. When the earphone 100 is accommodated in the contoured groove 911, the charging port 16 is electrically connected to the electrode terminal 912.

[0061] The charging case 900 may also include a magnetic attraction structure (not shown) installed in the lower housing assembly 910. Multiple pairs of magnetic attraction structures, for example, two pairs, may be installed according to needs. When one of the earphones 100 is placed in the profiling groove 911, the magnetic attraction structure and the magnetic attraction element 17 of the earphone 100 form a magnetic attraction pairing so that the charging port 16 and the electrode terminal 912 are in one-to-one contact with each other.

[0062] Below, several exemplary structures of the ear hook 2 of the earphone 100 are shown, and different exemplary structures can be combined with each other to obtain other exemplary structures that belong to this embodiment and are not described in detail.

[0063] To improve the wearing comfort of the ear hook 2, reference is made to the following first exemplary structure of the exemplary ear hook 2.

[0064] 8, the earphone 100 may include a main module 1 and an ear hook 2. The ear hook 2 is curved and has a first end 201 and a second end 202 spaced apart from the first end 201, with the first end 201 connected to the main module 1. The ear hook 2 is placed around a user's ear, and includes an elastic frame 21 extending along the extension direction of the ear hook 2, and a covering member 22 that covers the elastic frame 21 and has a buffer cavity 220 installed therein.

[0065] By providing the ear hook 2, which includes the elastic frame 21 and the covering member 22, each of which has a certain elastic limit and is capable of elastic deformation within its respective elastic limits, the ear hook 2 can elastically deform and fit snugly to the ear when the user wears the earphone 100, effectively improving wearing comfort and stability. By providing the buffer cavity 220 in the covering member 22, the covering member 22 can more easily elastically deform and adapt to different ear widths when the user wears the earphone 100, thereby better fitting the user's ear and achieving a self-adaptive function. Furthermore, the presence of the buffer cavity 220 increases the contact area between the covering member 22 and the user's ear when the covering member 22 is in contact with the ear, reducing the pressure applied by the covering member 22 to the ear, improving wearing comfort for the user.

[0066] Furthermore, as shown in FIG. 8, the buffer cavity 220 is closer to the second end 202 of the first end 201 and the second end 202.

[0067] By positioning the second end 202 farther from the main module 1 than the first end 201 and positioning the buffer cavity 220 closer to the second end 202, when the user wears it, the portion close to the second end 202 is more easily elastically deformed than the portion close to the first end 201, ensuring the stability of the connection between the main module 1 and the ear hook 2 and improving the adaptability of the ear hook 2, effectively improving the user's wearing comfort.

[0068] Furthermore, as shown in FIG. 9, the covering member 22 has a rear covering portion 222 that is located behind the ear portion when worn, the second end 202 is located in the rear covering portion 222, and the buffer cavity 220 is formed in the rear covering portion 222.

[0069] When the earphone 100 is in a worn state, the ear hook 2 is hung around the outer periphery of the ear part of the user, and the rear covering part 222 is located at the rear of the ear part. By forming a buffer cavity 220 in the rear covering part 222, the deformable range of the rear covering part 222 can be expanded, thereby better adapting to the use of users with different ear widths, effectively reducing the pressure applied by the ear hook 2 to the rear of the user's ear part, and providing the user with a better wearing experience.

[0070] Preferably, as shown in FIG. 9 , the main module 1 includes a connection end 103 connected to the first end 201 of the ear hook 2 and a free end 102 spaced from the connection end 103, at least a portion of the rear covering portion 222 being positioned opposite the free end 102, and at least a portion of the buffer cavity 220 being located in the portion of the rear covering portion 222 positioned opposite the free end 102.

[0071] At least a portion of the rear covering part 222 is positioned opposite the free end 102, and at least a portion of the buffer cavity 220 is located at the part of the rear covering part 222 that is positioned opposite the free end 102. This allows the rear covering part 222 and the free end 102 to be positioned on either side of the ear part when the user is wearing the earphone 100, and the rear covering part 222 located on the rear side of the ear part can adaptively elastically deform, effectively reducing the pressure applied to the user's ear part when wearing the earphone, improving the user's wearing comfort.

[0072] Furthermore, as shown in Figures 8 and 9, the free end 102 is positioned so that it enters the concha cavity 502 of the ear when worn, and the free end 102 and the rear covering part 222 are positioned so that they jointly hold the ear region corresponding to the concha cavity 502 from both the front and rear sides when worn, and the buffer cavity 220 is located in the part of the rear covering part 222 that holds the ear region.

[0073] When the earphone 100 is worn, the free end 102 enters the cavity of the concha 502, so that when a user is wearing the earphone 100, the rear covering part 222 and the free end 102 can clamp the front and rear sides of the user's ear, improving wearing stability and reducing the possibility of the earphone 100 coming off. The part of the rear covering part 222 that clamps the ear region applies a large amount of pressure to the user's ear, and by installing the buffer cavity 220 in this part, the pressure applied by the rear covering part 222 to the ear canal can be reduced, improving the user's wearing experience.

[0074] 8 and 9, the main body module 1 preferably has a length direction X, a width direction Z, and a thickness direction Y that are perpendicular to one another, and the main body modules 1 are stacked on the ear portions along the thickness direction Y in the mounted state. The orthogonal projection of the buffer cavity 220 onto a reference plane perpendicular to the length direction X partially overlaps with the orthogonal projection of the free end 102 onto the reference plane.

[0075] The orthogonal projection of the buffer cavity 220 onto a reference plane perpendicular to the longitudinal direction X and the orthogonal projection of the free end 102 onto the reference plane partially overlap, i.e., the free end 102 and at least a part of the rear covering part 222 where the buffer cavity 220 is located are arranged to sandwich the ear part facing each other on both sides, thereby ensuring a tight fit and improving comfort without applying excessive pressure when sandwiching the user's ear part.

[0076] 9 and 10 , the main module 1 preferably has an inner surface IS facing the ear portion along the thickness direction Y when worn, an outer surface OS away from the ear portion, and an upper surface US and a lower surface LS2 connecting the inner surface IS and the outer surface OS, the upper surface US facing the ear hook 2, and the upper surface US and the lower surface LS2 being spaced apart in the width direction Z. The covering member 22 is divided into a front covering portion 221 and a rear covering portion 222 by the extending plane of the upper surface US, the first end 201 being located in the front covering portion 221, the second end 202 being located in the rear covering portion 222, and the buffer cavity 220 being formed in the rear covering portion 222.

[0077] The ear hook 2 surrounds the main module 1 in an arc shape to position and fix the position of the main module 1 relative to the user's ear when worn by the user. However, the size and width of the ear varies from person to person, and since a buffer cavity 220 is formed in the rear covering part 222 installed opposite the free end 102, it has a wider range of deformation, so that it fits better to the user's ear when clamping it, and the contact area between the rear covering part 222 and the ear can be increased, so that excessive pressure is not applied, causing discomfort to the user, and the user's comfort is effectively improved.

[0078] Furthermore, as shown in FIG. 9, the dimension T5 of the buffer cavity 220 in the width direction Z is greater than the dimension T2 of the main body module 1 in the width direction Z.

[0079] By setting the dimension T5 of the buffer cavity 220 in the width direction Z larger than the dimension T2 of the main module 1 in the width direction Z, the buffer cavity 220 has sufficient deformation space, making it easy for the rear covering part 222 to deform. As a result, when the rear covering part 222 clamps the user's ear, it can fit more closely to the structure of the ear, making it easier for the user to adjust the fit.

[0080] Preferably, as shown in FIG. 9 , the covering member 22 includes a front covering portion 221 and a rear covering portion 222, the front covering portion 221 covering the elastic frame 21, the front covering portion 221 and the rear covering portion 222 being connected in sequence in the extending direction, the rear covering portion 222 not covering the elastic frame 21, and the buffer cavity 220 being formed in the rear covering portion 222.

[0081] The rigidity of the elastic frame 21 may be greater than the rigidity of the covering member 22, so that the elastic frame 21 can provide support and maintain the relative shape of the ear hook 2. By covering the elastic frame 21 with the front covering part 221 so that the user's ear does not directly contact the elastic frame 21, the relative shape of the ear hook 2 is maintained, the user's ear is protected, and the user's comfort is improved. In addition, the rear covering part 222, which holds the ear together with the free end 102, does not cover the elastic frame 21, i.e., the rear covering part 222 can be located downstream of the elastic support member in the extension direction from the first end 201 to the second end 202, so that the rear covering part 222 can elastically deform more easily than the front covering part 221 and further improve comfort when it fits closely to the user's ear. Based on this, a buffer cavity 220 is formed in the rear covering part 222, which allows the rear covering part 222 to have a wider elastic range and achieve greater elastic deformation to adapt to different ear widths, thereby improving the application range and comfort of the earphone 100. Preferably, the material of the covering member 22 may include an elastic non-metallic material such as silicone rubber or rubber, and the material of the elastic frame 21 may include a metallic material or a non-metallic material, such as titanium wire, steel wire, or elastic plastic material, but is not limited thereto.

[0082] Preferably, as shown in FIG. 9, the ear hook 2 includes a fixed block 23, which is fixed to one end of the elastic frame 21 close to the second end 202, the front covering portion 221 covers the fixed block 23, and the extending length D2 of the rear covering portion 222 along the extending direction is greater than the extending length D4 of the fixed block 23 along the extending direction.

[0083] The fixing block 23 is fixed to one end of the elastic frame 21, close to the second end 202, and the front covering part 221 covers the fixing block 23, thereby improving the fixing stability between the front covering part 221 and the elastic frame 21. The extension length D2 of the rear covering part 222 along its extension direction is greater than the extension length D4 of the fixing block 23 along its extension direction, so that the rear covering part 222 has a long extension length and provides a sufficient contact area when worn by a user, ensuring a comfortable fit. Because the rear covering part 222 and the front covering part 221 may bend in response to elastic deformation of the earhook 2, the installation of the fixing block 23 effectively reduces the possibility of the elastic frame 21 breaking through the rear covering part 222, thereby extending the service life of the earphone 100.

[0084] Preferably, the ratio of the extension length D2 along the extension direction of the rear covering part 222 to the extension length D1 along the extension direction of the front covering part 221 is greater than or equal to 1 / 5 and less than or equal to 1 / 2, so that when the earphone 100 is worn, the rear covering part 222 has a sufficient contact area with the user's ear, and the elastic frame 21 covered by the front covering part 221 provides sufficient support strength to maintain the relative shape of the ear hook 2, thereby improving the appearance and service life of the earphone 100.

[0085] Preferably, the extension length D1 along the extension direction of the front covering part 221 is 50 mm to 70 mm. If this value is too small, the pressure on the user's ear when wearing the earphone increases, resulting in a poor wearing comfort. If this value is too large, the ear hook 2 will not be able to properly hold the ear when the user is wearing the earphone 100, resulting in an unstable fit.

[0086] Preferably, the extension length D2 of the rear covering-part 222 is 10 mm to 30 mm. Within this length range, the ear hook 2 is both comfortable and aesthetically pleasing, thereby improving the user's comfort. If this value is too large, it will extend beyond the user's ear area when worn, adversely affecting usability and aesthetics. If this value is too small, the area and length that hold the user's ear when worn will be too small, making it difficult to hold the ear properly and causing an unstable fit.

[0087] 11a and 12, the ear hook 2 preferably further includes an insert member 24, which is fixed to one end of the elastic frame 21 adjacent to the first end 201, and which is inserted into and fixed to the main module 1. The ear hook 2 is inserted into and fixed to the main module 1 via the insert member 24, which effectively improves the connection stability between the ear hook 2 and the main module 1 and facilitates assembly and disassembly.

[0088] 13, the buffer cavity 220 is preferably hermetically installed and formed inside the covering member 22. The hermetically sealed buffer cavity 220 can effectively prevent impurities such as dust, oil, and the like from entering the buffer cavity 220 and damaging the buffer cavity 220, and can effectively extend the service life of the covering member 22.

[0089] 8, the buffer cavity 220 is preferably formed in the shape of a hole or a groove, which can better accommodate the elastic deformation of the covering member 22 and improve the wearing comfort of the user. In some embodiments, the buffer cavity 220 is formed in the shape of a hole and penetrates the covering member 22 along the thickness direction Y. In other embodiments, the buffer cavity 220 is formed in the shape of an elongated curved through-hole, and the curvature direction of the buffer cavity 220 coincides with the curvature direction of the portion of the covering member 22 where the buffer cavity 220 is formed.

[0090] Preferably, as shown in FIG. 14 , the number of the buffer cavities 220 is at least two, and the at least two buffer cavities 220 are spaced apart along the extension direction of the ear hook 2, so that the covering member 22 has a sufficient elastic range, improves the wearing comfort of the user, and effectively reduces the possibility of damage caused by the user's ear part being too wide, and extends the service life of the ear hook 2.

[0091] Preferably, as shown in FIG. 11a, the ear hook 2 further includes a filling member 25, the hardness of which is less than that of the covering member 22, and the filling member 25 is installed in the buffer cavity 220, so as not to affect the elastic deformation of the covering member 22 and to provide a certain support for the covering member 22, thereby extending the service life of the covering member 22 and thus the service life of the ear hook 2.

[0092] Preferably, the covering member 22 has an inner surface facing the main module 1 and an outer surface away from the inner surface, and the inner surface is located closer to the buffer cavity 220 than the outer surface. The inner surface of the covering member 22 is the surface that comes into contact with the user's ear, and by placing the buffer cavity 220 closer to the inner surface, the covering member 22 can have better adhesion and flexibility when worn by the user, improving user comfort.

[0093] In the examples shown in Figures 9 and 13, the elastic frame 21 and the buffer cavity 220 are installed adjacent to or spaced apart in the extension direction of the ear hook 2. In the examples shown in Figures 15a and 15b, the elastic frame 21 and the buffer cavity 220 are installed spaced apart in the radial direction of the elastic frame 21. Specifically, the elastic frame 21 has a predetermined radial direction that is perpendicular to the extension direction of the elastic frame 21 and passes through the buffer cavity 220, and the buffer cavity 220 is installed spaced apart from the elastic frame 21 in the predetermined radial direction. By installing it in this manner, the buffer cavity 220 can provide wearing comfort, and the elastic frame 21 can provide better support strength at the position of the buffer cavity 220, thereby providing even higher wearing stability.

[0094] Specifically, the buffer cavity 220 is closer to the main module 1 in a predetermined radial direction than the elastic frame 21, and is therefore closer to the ear when worn. With this arrangement, the buffer cavity 220 can provide elastic buffering when it fits snugly against the user's ear, providing better fit and flexibility, and improving wearing comfort.

[0095] Specifically, the covering member 22 includes a first covering portion 2201 and a second covering portion 2202 located on either side of the buffer cavity 220 along a predetermined radial direction, the first covering portion 2201 and the second covering portion 2202 being spaced apart to form the buffer cavity 220, and the first covering portion 2201 being closer to the main module 1 and contacting the ear portion than the second covering portion 2202. In this way, the first covering portion 2201 is farther away from the elastic frame 21, and the buffer cavity 220 provides a large space for the first covering portion 2201 to deform, thereby allowing the first covering portion 2201 to fit more effectively and closely to the ear portion, providing a softer fit and effectively improving wearing comfort.

[0096] In the example shown in FIG. 15a, the elastic frame 21 may be perforated in the second covering portion 2202. Preferably, the elastic frame 21 extends from the first end 201 of the ear hook 2 to the second end 202 of the ear hook 2. In this way, the ear hook 2 can be provided with more complete and high support, and the wearing stability can be effectively improved. In addition, since the elastic frame 21 extends from the first end 201 of the ear hook 2 to the second end 202 of the ear hook 2, it is less likely to puncture the covering portion 22 when the covering portion 22 is bent, thereby extending the service life. Preferably, the buffer cavity 220 is closer to the second end 202 of the ear hook 2 out of the first end 201 and the second end 202 of the ear hook 2.

[0097] In some embodiments, the elastic frame 21 further extends above the cushioning cavity 220 (i.e., above a portion of the cushioning cavity 220 that is adjacent to the second end 202 of the earhook 2) in the direction of extension from the first end 201 to the second end 202 of the earhook 2. That is, the elastic frame 21 may extend between the cushioning cavity 220 and the distal end of the second end 202. This arrangement can provide better support. In other embodiments, the fixing block 23 may be connected to one end of the elastic frame 21 that extends toward the second end 202 of the earhook 2, and the fixing block 23 is bent and extends from the elastic frame 21 toward the cushioning cavity 220, and then bent and extends above the cushioning cavity 220 (i.e., above a portion of the cushioning cavity 220 that is adjacent to the second end 202 of the earhook 2) in the direction of extension from the first end 201 to the second end 202 of the earhook 2. That is, the fixing block 23 may extend between the buffer cavity 220 and the distal end of the second end 202. This arrangement not only provides better support but also makes it less likely that the elastic frame 21 will break through the covering member 22.

[0098] In some embodiments, an end of the elastic frame 21 adjacent to the second end 202 is inserted into the fixed block 23, and the circumferential dimension of the end of the fixed block 23 remote from the elastic frame 21 is larger than the circumferential dimension of the end of the fixed block 23 inserted into the elastic frame 21. Connecting the elastic frame 21 and the fixed block 23 by inserting the elastic frame 21 into the fixed block 23 is advantageous to improving the connection stability between them and not affecting the support provided by the elastic frame 21 for the earhook 2. Furthermore, because the circumferential dimension of the end of the fixed block 23 remote from the elastic frame 21 is larger than the circumferential dimension of the end of the fixed block 23 inserted into the elastic frame 21, this allows the fixed block 23 to bend and extend, which helps reduce the difficulty of the production process of the fixed block 23 and is advantageous to improving the strength and service life of the fixed block 23. It also increases the contact area between the fixed block 23 and the covering member 22, which is advantageous to reducing the difficulty of processing the earhook 2 and extending the service life of the earhook 2.

[0099] 11b and 15a, a first positioning hole 223 is formed in the ear hook 2, and a second positioning hole 231 is formed in the fixed block 23. The second positioning hole 231 is located at one end of the fixed block 23 away from the elastic frame 21, and the first positioning hole 223 and the second positioning hole 231 are arranged opposite each other. The first positioning hole 223 and the second positioning hole 231 arranged opposite each other allow an external positioning device to position the fixed block 23 through the first positioning hole 223, which makes the shape and position dimensions of each component of the ear hook 2 more accurate and contributes to improving the yield of the ear hooks 2. In addition, the circumferential dimension of the end of the fixed block 23 away from the elastic frame 21 is larger than the circumferential dimension of the inserted end, and the diameter of the second positioning hole 231 can be made relatively larger, which makes it easier to operate and align the external positioning device.

[0100] In some embodiments, as shown in FIG. 15a, one end of the elastic frame 21 adjacent to the first end 201 is inserted into the insert member 24, and the extension direction of the one end of the elastic frame 21 adjacent to the first end 201 intersects with the extension direction of the insert member 24. By installing in this manner, a stable connection between the insert member 24 and the main module 1 and a stable connection between the elastic frame 21 and the insert member 24 can be achieved, which is advantageous in improving the connection stability between the elastic frame 21 and the insert member 24, and also in improving the connection stability between the ear hook 2 and the main module 1.

[0101] Preferably, as shown in Figures 14 and 15a, the main module 1 has a length direction X, a width direction Z, and a thickness direction Y which are perpendicular to each other, and the main module 1 is stacked on the ear portion along the thickness direction Y when worn, and the extension direction of one end of the elastic frame 21 adjacent to the first end 201 and the length direction X form a first angle Q1 facing the ear hook 2, and the extension direction of the inserting member 24 and the length direction X form a second angle Q2 facing the ear hook 2, and the first angle Q1 is smaller than the second angle Q2. Setting the first angle Q1 and the second angle Q2 to different magnitudes allows the elastic frame 21 and the insert member 24 to intersect with each other, and appropriately setting the magnitudes of the first angle Q1 and the second angle Q2 ensures a stable connection between the insert member 24 and the main module 1 and brings the end of the elastic frame 21 connected to the insert member 24 closer to the center of the cross section of the earhook 2, which advantageously allows the elastic frame 21 to provide excellent support to the earhook 2, thereby improving the comfort and service life of the earphone 100. Preferably, the first angle Q1 is between 70° and 110°, and may be, for example, 80°, 85°, 90°, 95°, 100°, etc., and the second angle Q2 is between 90° and 130°, and may be, for example, 100°, 105°, 110°, 115°, 120°, etc.

[0102] 15b, the elastic frame 21 may extend to the second covering portion 2202. Preferably, the ear hook 2 includes a fixing block 23, which is located at one end of the elastic frame 21 adjacent to the second end 202, and the covering member 22 covers the fixing block 23. The fixing block 23 may be located on the side of the buffer cavity 220 away from the main module 1, i.e., the fixing block 23 may be located on the second covering portion 2202. By locating the fixing block 23 in this manner, the side of the buffer cavity 220 adjacent to the main module 1 deforms during wearing to increase the contact area with the user's ear, reducing pressure on the ear and providing a more comfortable fit to the user's ear, improving wearing comfort. At the same time, this deformation and cushioning allows for an elastic fit to the human ear, further improving wearing stability. Furthermore, by positioning the fixing block 23 and the elastic frame 21 on the side of the buffer cavity 220 away from the main module 1, the support strength for the ear hook 2 can be improved without affecting the deformation of the buffer cavity 220, allowing the buffer cavity 220 to deform more stably, thereby ensuring a comfortable fit with the user's ear and stable wearing. Furthermore, the fixing block 23 reduces the possibility that the elastic frame 21 will break through the second covering part 2202, thereby improving the stability and reliability of the covering member 22.

[0103] Preferably, the fixing block 23 is located between both ends of the buffering cavity 220 in the extension direction of the ear hook 2, and is closer to the end of the buffering cavity 220 that is closer to the second end 102. In this way, it is possible to surround more of the buffering cavity 220 in the extension direction of the ear hook 2, and it is possible to effectively provide better support by allowing the buffering cavity 220 to deform more and fit more closely to the ear, and it is also possible to provide better support to the entire ear hook 2 and ensure the support performance of the entire ear hook 2.

[0104] To improve the wearing comfort of the ear hook 2, reference is made to the following second exemplary structure of the exemplary ear hook 2.

[0105] As shown in FIG. 16 , the earphone 100 may include a main module 1 and an ear hook 2. The ear hook 2 is connected to the main module 1. The ear hook 2 includes a connection body 20 connected to the main module 1 and an elastic buffer part 26 connected to the connection body 20. The connection body 20 forms a first outer surface part of the ear hook 2, and the elastic buffer part 26 forms a second outer surface part of the ear hook 2, with at least a portion of the second outer surface part facing the main module 1. The hardness of the elastic buffer part 26 is less than the hardness of the connection body 20.

[0106] By installing the ear hook 2 including the connection body 20 and the elastic buffer part 26, which has a certain elastic limit and is elastically deformable within the elastic limit, the ear hook 2 can elastically deform and fit closely to the ear when the user wears the earphone 100, effectively improving wearing comfort and stability. The hardness of the elastic buffer part 26 is less than that of the connection body 20, and at least a part of the second outer surface part of the elastic buffer part 26 facing the main module 1 can directly contact the ear when the user wears the earphone 100, and the connection body 20, which has high hardness, plays a supporting role, ensuring the appearance of the ear hook 2 and effectively improving wearing comfort for the user.

[0107] Preferably, the elastic buffer part 26 is detachably connected to the connecting body 20. By arranging the elastic buffer part 26 and the connecting body 20 so that they are detachably connected, production and assembly are facilitated, and if any component is damaged, the component can be replaced individually, improving user convenience and extending the service life of the earphone 100.

[0108] Preferably, the elastic buffer part 26 and the connecting body 20 are slidably connected, which makes it easy to attach and detach the elastic buffer part 26 and the connecting body 20, thereby improving the efficiency of assembling and detaching the ear hook 2 and facilitating subsequent individual replacement of the elastic buffer part 26 or the connecting body 20.

[0109] In some embodiments, as shown in FIG. 17 , a sliding edge 261 is provided on the elastic buffer part 26, a sliding groove 203 is formed on the connecting body 20, and the sliding edge 261 is slidably fitted into the sliding groove 203, which effectively fixes the elastic buffer part 26 and the connecting body 20 and facilitates installation and removal.

[0110] In some embodiments, the elastic buffer part 26 is glued or magnetically connected to the connection body 20. The glued structure and the magnetically connected structure are simple and easy to install and remove, and the connection between the elastic buffer part 26 and the connection body 20 can be achieved without installing any additional structure, which effectively saves production costs and reduces subsequent maintenance costs.

[0111] Preferably, as shown in FIG. 16, the main module 1 includes a connection end 103 connected to one end of the ear hook 2 and a free end 102 spaced from the connection end 103, and the main module 1 is stacked on the user's ear when worn, with at least a portion of the second outer surface portion positioned opposite the free end 102.

[0112] The main module 1 has a connection end 103 connected to the ear hook 2 and a free end 102 positioned opposite at least a part of the second outer surface of the elastic buffer part 26, so that when a user wears the earphone 100, the free end 102 and at least a part of the second outer surface are clamped on both sides of the ear, and the elastic buffer part 26 can adaptively elastically deform to make it easier for users with different ear sizes to wear it, ensuring the wearing stability of the earphone 100 and effectively improving the adaptability of the earphone 100.

[0113] Preferably, as shown in Figures 18 and 19, the extension length D3 of the elastic buffer part 26 along the extension direction of the ear hook 2 is at least 1 / 3 of the extension length D0 along the extension direction of the ear hook 2, so that the contact length of the elastic buffer part 26 with the user's ear when the ear hook 2 is worn by the user is sufficient, thereby increasing the contact area between the elastic buffer part 26 and the ear, providing better adhesion to the ear, and improving the wearing comfort of the user.

[0114] Preferably, as shown in FIG. 17, in some segments along the extension direction of the ear hook 2, both the elastic buffer part 26 and the connecting body 20 may be installed in the same cross section perpendicular to the extension direction of the ear hook 2, and the ratio of the circumferential dimension R1 of the outer edge of the elastic buffer part 26 to the circumferential dimension R2 of the outer edge of the connecting body 20 is greater than or equal to 0.2 and less than 1, so that the connecting body 20 provides sufficient support to the ear hook 2 to ensure the relative shape of the ear hook 2, and the elastic buffer part 26 with low hardness can reduce the discomfort caused by the pressure from the ear hook 2 when the user is wearing it, improving the wearing comfort of the user.

[0115] 16 and 18, the main body module 1 preferably has a length direction X, a width direction Z, and a thickness direction Y that are perpendicular to one another, and the main body module 1 is stacked on the user's ear along the thickness direction Y when worn. The orthogonal projection of the elastic buffering portion 26 onto a reference plane perpendicular to the length direction X partially overlaps with the orthogonal projection of the free end 102 onto the reference plane; that is, the orthogonal projection of the elastic buffering portion 26 onto a reference plane parallel to the width direction Z and thickness direction Y partially overlaps with the orthogonal projection of the free end 102 onto the reference plane.

[0116] The orthogonal projection of the elastic buffer portion 26 onto a reference plane perpendicular to the longitudinal direction X and the orthogonal projection of the free end 102 onto the reference plane partially overlap, i.e., the free end 102 and at least a part of the elastic buffer portion 26 are arranged to clamp opposite each other on both sides of the ear portion, thereby ensuring a tight fit and improving comfort without applying excessive pressure when clamping the user's ear portion while ensuring stability.

[0117] 16 and 18, the elastic buffer portion 26 is closer to the main module 1 than the connection body 20, which increases the contact area between the elastic buffer portion 26, which has low hardness, and the user's ear, allowing it to fit more closely to the structure of the ear when clamping the user's ear, resulting in greater comfort. In some embodiments, the elastic buffer portion 26 is closer to the main module 1 in the radial direction of the ear hook 2 than the connection body 20, for example, and the radial direction of the ear hook 2 is perpendicular to the extension direction of the ear hook 2.

[0118] 16, 18, and 19, by joining the elastic buffer part 26 and the connecting body 20, when the ear hook 2 is placed over the user's ear, the contact area between the low-hardness elastic buffer part 26 and the user's ear is increased and the contact area between the high-hardness connecting body 20 and the user's ear is reduced, thereby improving user comfort. In some embodiments, the elastic buffer part 26 and the connecting body 20 may be joined to each other in the normal direction F of the outer contour of the ear hook 2 and the extension direction of the ear hook 2, for example, where the normal direction F of the outer contour of the ear hook 2 is a direction perpendicular to the outer contour of the ear hook 2. Joining the elastic buffer part 26 and the connecting body 20 in the normal direction F of the outer contour of the ear hook 2 facilitates positioning and attachment, effectively reducing the difficulty of assembly.

[0119] 16, 18, and 19, the ear hook 2 preferably has a first end 201 and a second end 202 located on opposite sides, the first end 201 being connected to the main module 1, and the second end 202 being located at the elastic buffer part 26, which is closed in the circumferential direction at the second end 202. The part of the elastic buffer part 26 forming the second end 202 is located below the connecting body 20 in the direction from the first end 201 to the second end 202 of the ear hook 2, and the other part of the elastic buffer part 26 is located on the side of the connecting body 20 facing the main module 1. Joining the elastic buffer part 26 to the connecting body 20 can reduce the difficulty of assembly and improve the stability and reliability of the connection. By arranging a portion of the elastic buffer part 26 so that it is positioned on the side of the connecting body 20 facing the main module 1, the elastic buffer part 26 comes into contact with the user's ear more than the connecting body 20, thereby improving the user's wearing comfort. The portion forming the second end 202 of the elastic buffer part 26 is positioned below the connecting body 20 in the direction from the first end 201 to the second end 202 of the ear hook 2, which is advantageous to increasing the contact area between the elastic buffer part 26 and the ear, ensuring wearing comfort and improving wearing stability. The elastic buffer part 26 is closed in the circumferential direction at the second end 202, which reduces external impurities from entering the elastic buffer part 26 and avoids damaging the inside of the elastic buffer part 26, thereby extending the service life of the elastic buffer part 26.

[0120] 16 to 19, the first end 201 is connected to the main module 1, and the circumferential dimension R1 of the elastic buffering part 26 gradually or stepwise increases from the first end 201 to the second end 202. Because the first end 201 is connected to the main module 1, the first end 201 needs to have a higher hardness to ensure the connection stability and reliability of the earhook 2, and needs to provide sufficient support to maintain the relative position between the earhook 2 and the main module 1 and ensure that the user can properly wear and use the earphone 100. Therefore, the circumferential dimension R1 of the elastic buffering part 26, which has a low hardness, is small at a position close to the first end 201, and the circumferential dimension R1 of the elastic buffering part 26 gradually or stepwise increases from the first end 201 to the second end 202, which can effectively improve the user's comfort.

[0121] Preferably, as shown in FIGS. 16 to 19 , the connection body 20 and the elastic buffer portion 26 are connected in sequence along the extension direction of the ear hook 2, with the second end 202 located at the elastic buffer portion 26. The elastic buffer portion 26 and the connection body 20 can smoothly transition from their connected ends in the extension direction of the ear hook 2, thereby ensuring comfortable wearing and improving the appearance and connection stability of the ear hook 2. In some embodiments, the circumferential dimension R2 of the connection body 20 gradually decreases from the end connected to the elastic buffer portion 26 toward the first end 201. In some embodiments, the circumferential dimension R2 of the connection body 20 gradually decreases and then gradually increases from the end connected to the elastic buffer portion 26 toward the first end 201. In other embodiments, the circumferential dimension R2 of the connection body 20 at the end connected to the elastic buffer portion 26 is the maximum circumferential dimension of the connection body 20.

[0122] 20, the connecting body 20 preferably includes an elastic frame 21 and a covering member 22, the covering member 22 covering at least a portion of the elastic frame 21, and an elastic buffering member 26 connected to the covering member 22, the hardness of the elastic buffering member 26 being less than that of the covering member 22, which in turn is less than that of the elastic frame 21. The elastic frame 21 provides the main support to maintain the relative shape of the ear hook 2 and prevent the ear hook 2 from being deformed, which can cause the user to be unable to use the ear hook normally. By arranging the covering member 22 and the elastic buffering member 26 with decreasing hardness, the elastic frame 21, which has a high hardness, is prevented from directly contacting the user's ear, improving the user's wearing comfort. Preferably, the ear hook 2 has a buffer cavity 220 formed therein, for example, it may be formed in the covering member 22, in the elastic buffer portion 26, or in both the covering member 22 and the elastic buffer portion 26, thereby improving its flexibility and deformable range and improving the user's comfort in use; for specific details, please refer to the description of the above embodiment.

[0123] In some embodiments, the covering member 22 covers a part of the elastic frame 21, and the elastic buffer part 26 covers another part of the elastic frame 21, making the elastic frame 21 a bracket and connecting bridge for the ear hook 2, thereby improving the stability and reliability of the connection of the ear hook 2.

[0124] In some embodiments, the covering member 22 and the elastic buffer part 26 are connected in sequence along the extension direction, and the elastic buffer part 26 does not cover the elastic frame 21 but is located downstream of the elastic frame 21 in the extension direction of the earhook 2, thereby not affecting the flexibility and deformable range of the elastic buffer part 26 and maximizing the user's comfort in use and the application range of the earphone 100.

[0125] To improve the wearing comfort of the ear hook 2, reference is made to the following third exemplary structure of the exemplary ear hook 2.

[0126] As shown in FIGS. 21 to 24 , the ear hook 2 has a first end 201 and a second end 202 located on opposite sides, and the first end 201 is connected to the main body module 1. The ear hook 2 is hung on a user's ear 500. The ear hook 2 includes an elastic frame 21, a covering member 22, and a fixed block 23. The elastic frame 21 extends in an extension direction from the first end 201 to the second end 202. The covering member 22 includes a front covering portion 221 and a rear covering portion 222. The front covering portion 221 and the rear covering portion 222 are connected to each other in the extension direction. The fixed block 23 is located at one end of the elastic frame 21, away from the first end 201, and the front covering portion 221 covers the elastic frame 21 and the fixed block 23. The rear covering portion 222 does not cover the elastic frame 21 or the fixed block 23, and is located downstream of the fixed block 23 in the extension direction. The extension length D2 of the rear covering part 222 along the extension direction is equal to or greater than the extension length D4 of the fixed block 23 along the extension direction. By installing the rear covering part 222 in this manner, it is possible to prevent the elastic frame 21 from breaking through the covering member 22, which makes it easier to process and mold the covering member 22 and effectively improves the processing accuracy.

[0127] The main module 1 reproduces sound. The ear hook 2 can be connected to the main module 1 via a first end 201 so that the main module 1 can be in close contact with or in close contact with the user's ear part 500. The elastic frame 21 can support the covering member 22 within the ear hook 2. The elastic frame 21 is deformable to a certain extent. The covering member 22 can cover the elastic frame 21 and can deform in response to deformation of the elastic frame 21. In this way, the user can adjust the shape of the ear hook 2 by adjusting the shape of the elastic frame 21, which allows the ear hook 2 to better adapt to the shape of the user's ear part 500, improving the user's wearing comfort and making the earphone 100 more stable.

[0128] By installing the rear covering part 222 after installing the front covering part 221 and setting the extension length D2 of the rear covering part 222 in the extension direction to be equal to or greater than the extension length D4 of the fixing block 23, it is possible to ensure that the length of the rear covering part 222 in the extension direction is sufficient, increase the length of the ear hook 2 in the extension direction, and improve the comfort and stability of wearing the earphone 100. By installing the rear covering part 222 so as not to cover the elastic frame 21 and the fixing block 23, the rear covering part 222 is not supported by the elastic frame 21 and the fixing block 23, reducing the force acting from the rear covering part 222 on the human ear and improving wearing comfort for the user. Furthermore, because the elastic frame 21 is not installed within the rear covering part 222, the amount of material used for the elastic frame 21 can be reduced, thereby reducing costs.

[0129] If the fixing block 23 is not provided, there is a risk that the titanium wire of the elastic frame 21 will puncture the covering member 22 (e.g., the rear covering portion 222) when the rear covering portion 222 is elastically bent relative to the front covering portion 221. Here, by providing the fixing block 23 at one end of the elastic frame 21 remote from the first end 201, it is possible to reduce direct contact of the one end of the elastic frame 21 remote from the first end 201 with the rear covering portion 222 when the rear covering portion 222 is bent relative to the front covering portion 221, thereby reducing the risk that the one end of the elastic frame 21 remote from the first end 201 will puncture the covering member 22 (e.g., the rear covering portion 222) and alleviating discomfort when worn caused by the one end of the elastic frame 21 remote from the first end 201.

[0130] Furthermore, the radial dimension of the fixed block 23 perpendicular to the extension direction may be larger than the radial dimension of one end of the elastic frame 21 remote from the first end 201. In other words, the circumferential dimension of the fixed block 23 may be larger than the circumferential dimension of the elastic frame 21.

[0131] Preferably, the material of the covering member 22 is silicone rubber, plastic, or rubber.

[0132] As shown in FIG. 22, in some embodiments, the extension length D2 of the rear covering-part 222 along the extension direction is 10 mm to 25 mm.

[0133] Based on large-scale model data of the human auricle, the front covering part 221 is closer to the ear hook part (the part where the earhook 2 is hooked) behind the eartip. Therefore, the further the earhook 2 extends toward the second end 202, the greater the deviation between the earhook 2 and the contour of the human ear. Therefore, the further rearward the earhook 2 is, the greater the required deformability is. By setting the extension length D2 of the rear covering part 222 along its extension direction to 10 mm or more, it is possible to ensure that the length of the rear covering part 222 along its extension direction is sufficient, thereby achieving both shape stability (fatigue resistance) and comfort (suitable for a wider range of people). Furthermore, by positioning the rear covering part 222 in this manner, it is possible to ensure that the fixing block 23 does not break through the covering member 22 of the rear covering part 222.

[0134] Setting the extension length D2 of the rear covering part 222 along its extension direction to 25 mm or less can simplify the external structure of the earphone 100. Furthermore, the extension length D2 of the rear covering part 222 along its extension direction is 12 mm to 25 mm. For example, the extension length D2 of the rear covering part 222 along its extension direction is 12 mm, 15 mm, 18 mm, 20 mm, or 22 mm.

[0135] Preferably, the extension length D1 along the extension direction of the front covering part 221 is 35 mm to 80 mm.

[0136] Setting the extension length D1 along the extension direction of front covering part 221 to 35 mm or more ensures that the length along the extension direction of front covering part 221 is sufficient, improving the wearing stability of earphone 100. Setting the extension length D1 along the extension direction of front covering part 221 to 70 mm or less reduces the force acting from front covering part 221 on the human ear, improving the user's wearing comfort, and reducing the material used for elastic frame 21 and reducing costs. For example, the extension length D1 along the extension direction of front covering part 221 is 40 mm, 45 mm, 48 mm, 50 mm, 55 mm, 60 mm, 65 mm, or 68 mm.

[0137] Preferably, the extension length D4 of the fixing block 23 along the extension direction is 6 mm to 15 mm. For example, the extension length D4 of the fixing block 23 along the extension direction of the ear hook 2 may be 8 mm, 10 mm, or 12 mm. By arranging the fixing block 23 in this manner, the fixing block 23 has a sufficient and reasonable length to cover the end of the elastic frame 21, making it difficult for the elastic frame 21 to break through the covering member 22. This effectively reduces the probability that the end of the elastic frame 21 will break through the covering member 22, and improves the fixing effect between the elastic frame 21 and the fixing block 23. Meanwhile, by setting the above dimensions, the fixing effect between the covering member 22 and the fixing block 23 is high, allowing the covering member 22 to better cover the fixing block 23, and further improving the fixing effect between the fixing block 23 and the elastic frame 21.

[0138] As shown in FIG. 22, in some embodiments, the ratio of the extension length D1 along the extension direction of the front covering-part 221 to the extension length D2 along the extension direction of the rear covering-part 222 is 2 or more and 4.5 or less.

[0139] Based on large-scale model data of the human auricle, since front covering part 221 is closer to the hooking part behind the eartip (part where earhook 2 is hooked), the more it extends towards second end 202 of earhook 2, the greater the deviation between earhook 2 and the contour of the human ear may become, and therefore the further back earhook 2 is, the greater the required deformability is. By combining the dimensions of front covering part 221 and rear covering part 222, front covering part 221 can act as a deformation moment arm for rear covering part 222, increasing the deformability of rear covering part 222, and successfully achieving both shape stability (fatigue resistance) and comfort (to accommodate more people) of earhook 2.

[0140] For example, the range of the ratio of the extension length D1 along the extension direction of the front covering part 221 to the extension length D2 along the extension direction of the rear covering part 222 is 2.2 to 2.5, 2.6 to 2.8, or 3.0 to 3.5. Furthermore, the range of the ratio of the extension length D1 along the extension direction of the front covering part 221 to the extension length D2 along the extension direction of the rear covering part 222 is 3.3 to 3.4.

[0141] If the ratio of the extension length D1 along the extension direction of the front covering part 221 to the extension length D2 along the extension direction of the rear covering part 222 is less than 2, the ear hook 2 is not stable when worn. If the ratio of the extension length D1 along the extension direction of the front covering part 221 to the extension length D2 along the extension direction of the rear covering part 222 is greater than 4, the ear hook 2 is not comfortable when worn. By setting the ratio of the extension length D1 along the extension direction of the front covering part 221 to the extension length D2 along the extension direction of the rear covering part 222 to be equal to or greater than 2 and equal to or less than 4.5, the ear hook 2 can have both excellent stability and comfort when worn.

[0142] As shown in FIG. 23, in some embodiments, one end of the elastic frame 21 remote from the first end 201 is inserted into a fixed block 23 .

[0143] By installing the end of the elastic frame 21 away from the first end 201 so that it is inserted into the fixed block 23, the fixed block 23 can play a role in covering the end of the elastic frame 21 away from the first end 201, which is advantageous in that the fixed block 23 is stably fixed to the end of the elastic frame 21 away from the first end 201, thereby reducing damage to the covering member 22 caused by the end of the elastic frame 21 away from the first end 201 and alleviating discomfort when worn caused by the end of the elastic frame 21 away from the first end 201.

[0144] 23, in some embodiments, the connection portion between the end face of the fixing block 23 facing the rear covering portion 222 and the peripheral side surface of the fixing block 23 is chamfered or curved. For example, the connection portion between the end face of the fixing block 23 facing the rear covering portion 222 and the peripheral side surface of the fixing block 23 transitions along a curved surface.

[0145] The front covering part 221 provides strong support to the user's ears 500, while the rear covering part 222 provides weak support to the user's ears 500. By chamfering or providing a curved surface at the connection point between the end face of the fixing block 23 facing the rear covering part 222 and the peripheral side surface of the fixing block 23, the support action to the user's ears 500 at the boundary between the rear covering part 222 and the front covering part 221 can be more smoothly transferred, improving the user's wearing comfort.

[0146] As shown in Figures 23 and 25, in some embodiments, a first positioning hole 223 is formed in the front covering part 221 and / or the rear covering part 222, and the fixing block 23 can be exposed from the first positioning hole 223.

[0147] During the production process of the ear hook 2, the first positioning hole 223 can avoid the external positioning device, thereby allowing the external positioning device to position the fixing block 23 through the first positioning hole 223, which further reduces the deformation of the elastic frame 21 during the production process of the ear hook 2, makes the shape and position dimensions of each component of the ear hook 2 more accurate, and improves the yield of the ear hook 2.

[0148] The first positioning holes 223 formed in the front covering portion 221 can allow the external positioning device to act on the peripheral side surface of the fixed block 23 or on the end face of the fixed block 23 that is away from the rear covering portion 222. The first positioning holes 223 formed in the rear covering portion 222 can allow the external positioning device to act on the end face of the fixed block 23 that faces the rear covering portion 222. For example, first positioning holes 223 can be formed in both the front covering portion 221 and the rear covering portion 222, thereby allowing the external positioning device to act on different positions of the fixed block 23, which is advantageous for improving the positioning effect on the fixed block.

[0149] Furthermore, the first positioning holes 223 are formed in pairs in the front covering part 221 and / or the rear covering part 222. The two paired first positioning holes 223 are installed opposite each other so that both opposing sides of the fixing block 23 are exposed from the first positioning holes 223. By installing them in this manner, it is easy to position the fixing block 23, and the fixing effect of the fixing block 23 is improved.

[0150] As shown in Figures 23 and 25, in some embodiments, the first positioning hole 223 is formed on the circumferential side of the front covering portion 221 and / or the rear covering portion 222, and a groove 224 is further formed on the circumferential side of the front covering portion 221 and / or the rear covering portion 222, and the first positioning hole 223 is formed at the bottom of the groove 224.

[0151] On the one hand, the grooves 224 reduce the dimensions of the front covering part 221 and / or the rear covering part 222 and provide a deformation space for the front covering part 221 and / or the rear covering part 222 to deform, thereby allowing the front covering part 221 and / or the rear covering part 222 to deform more easily when subjected to force, making it easier for the user to wear and improving wearing comfort. On the other hand, the grooves 224 make it easier for the user to recognize the earphone 100 by touch, which is advantageous for the user to sense the posture and position of the earphone 100 in space by touch, allowing the user to wear and use the earphone 100 accurately without using their eyes.

[0152] As shown in FIGS. 23 and 25, in some embodiments, the first positioning hole 223 is located at one end of the groove 224, and the other end of the groove 224 extends in a direction adjacent to the second end 202.

[0153] This arrangement is advantageous for the user to simultaneously sense the second end 202 and the groove 224 by touch, making it easier for the user to sense the spatial orientation and position of the earphone 100 by touch. At the same time, the groove 224 is located more closely to the rear covering part 222, which is advantageous for deformation of the rear covering part 222.

[0154] 21, 23 and 1, in some embodiments, the main body module 1 has a length direction X, a width direction Z and a thickness direction Y which are perpendicular to one another, and the main body module 1 is stacked on the ear portion 500 along the thickness direction Y in an attached state. The first positioning holes 223 extend in the thickness direction Y.

[0155] The covering member 22 can cover the elastic frame 21 by injection molding, and the first positioning holes 223 are formed in the covering member 22 by injection molding. By arranging the first positioning holes 223 so that they extend along the thickness direction Y, the mold opening direction and the direction in which the mold moves away from the first positioning holes 223 during the injection molding process coincide with each other, thereby making it easier for the covering member 22 to be released from the mold.

[0156] Furthermore, the first positioning hole 223 is formed on the side of the ear hook 2 facing the main module 1 when the earphone is worn. By arranging it in this manner, it is advantageous for the ear part 500 to conceal the first positioning hole 223 when the earphone is worn, and the appearance of the earphone 100 is improved.

[0157] As shown in FIG. 23, preferably, a second positioning hole 231 is formed in the fixed block 23, and the first positioning hole 223 and the second positioning hole 231 are disposed opposite to each other and communicate with each other.

[0158] The provision of the second positioning holes 231 facilitates the positioning of the fixed block 23 by an external positioning device, which is advantageous in improving the fixing effect. For example, an external positioning device can be inserted into the second positioning holes 231 to position the fixed block 23.

[0159] Furthermore, since the second positioning hole 231 is a blind hole, it is easy to demold during injection molding, while the second positioning hole 231 can be prevented from penetrating the fixed block 23, thereby allowing the fixed block 23 to maintain high strength.

[0160] Furthermore, the second positioning holes 231 are formed in pairs. The two second positioning holes 231 in a pair are installed opposite each other, so that both opposing sides of the fixed block 23 can be fixed via the second positioning holes 231. By installing them in this manner, it is easy to position the fixed block 23, and the fixing effect of the fixed block 23 is improved.

[0161] 22 , in some embodiments, the earphone 100 further includes a functional member 26a, which is detachably connected to the first positioning hole 223. This arrangement can improve the appearance and functionality of the earphone 100. For example, a user may wear two earphones 100 on their left and right ears. The functional member 26a may be arranged to detachably connect the two earphones 100 (for example, by clasping, adhesive, screwing, magnetic attraction, or connection using an additional fixing member), thereby reducing the risk of losing the earphones 100.

[0162] 22, the functional member 26a is a strap that connects two earphones 100. Of course, the functional member 26a may also be an arc-shaped metal member, and two functional members 26a may be joined to form a larger arc-shaped structure.

[0163] In some embodiments, the hardness of the fixing block 23 is greater than the hardness of the covering member 22. By setting the hardness of the fixing block 23 to be greater, the protective effect of the fixing block 23 on the covering member 22 can be improved. By setting the hardness of the covering member 22 to be smaller, the wearing comfort for the user can be improved.

[0164] Preferably, the material of the covering member 22 is soft plastic, silicone rubber or rubber, and the material of the fixed block 23 is hard plastic or metal.

[0165] 22 and 23, the front covering part 221 and the rear covering part 222 are preferably integrally molded, and the front covering part 221 is integrally molded to cover the outer peripheries of the elastic frame 21 and the fixed block 23. For example, the front covering part 221 and the rear covering part 222 are integrally molded by injection molding.

[0166] By installing it in this manner, the covering member 22 has a good and uniform covering effect, and the front covering portion 221 and the rear covering portion 222 are stably connected.

[0167] 22 , in some embodiments, the main module 1 includes a connection end 103 connected to the first end 201 of the ear hook 2 and a free end 102 spaced apart from the connection end 103, and at least a portion of the rear covering part 222 is disposed opposite the free end 102. By disposing the earphone 100 in this manner, when the earphone 100 is worn, at least a portion of the rear covering part 222 and the free end 102 can be positioned on either side of the same position on the ear part 500, and further, at least a portion of the rear covering part 222 and the free end 102 act so that the moment arms are the same on either side of the same position on the ear part 500, improving wearing comfort.

[0168] 22 , in some embodiments, the main module 1 includes a connection end 103 connected to the first end 201 of the ear hook 2 and a free end 102 spaced apart from the connection end 103, and the fixing member is installed opposite the free end 102. By installing the earphone 100 in this manner, the fixing member and the free end 102 can be located on either side of the same position on the ear part 500 when the earphone 100 is being worn, and furthermore, the main module 1 and the front covering part 221 act so that the moment arms are the same on both sides of the ear part 500, improving wearing stability.

[0169] 22 and 1, in some embodiments, the main body module 1 has a length direction X, a width direction Z, and a thickness direction Y that are perpendicular to one another, and the main body module 1 is stacked on the ear portion 500 along the thickness direction Y in the attached state. A dimension T1 of the rear covering portion 222 along the width direction Z is larger than a dimension T2 of the main body module 1 in the width direction Z.

[0170] By placing the earphone 100 in this manner, the rear covering portion 222 has a sufficient length along the width direction Z, which improves the comfort and stability of the earphone 100 when worn.

[0171] 21 and 22 , in some embodiments, the main body module 1 has, in an attached state, an inner side surface IS facing the ear portion 500 along the thickness direction Y, an outer side surface OS away from the ear portion 500, and an upper side surface US and a lower side surface LS2 connecting the inner side surface IS and the outer side surface OS, the upper side surface US and the lower side surface LS2 being spaced apart in the width direction Z. The second end 202 is located in the rear covering portion 222, which extends in the width direction Z beyond the lower side surface LS2.

[0172] By installing it in this manner, the length of the rear covering part 222 along the width direction Z is sufficient, which improves the wearing comfort of the earphone 100, and the length of the ear hook 2 along the width direction Z is sufficient, which is advantageous for improving the wearing stability of the earphone 100.

[0173] 22 , in some embodiments, at least a portion of the fixing block 23 is located between the extension plane of the upper side surface US and the extension plane of the lower side surface LS2, and the extension length D4 of the fixing block 23 along the extension direction of the earhook 2 is 6 mm to 15 mm. For example, a portion of the fixing block 23 is located between the extension plane of the upper side surface US and the extension plane of the lower side surface LS2, and another portion of the fixing block 23 is located on the side of the extension plane of the upper side surface US that is closer to the first end 201, and the extension length D4 of the fixing block 23 along the extension direction of the earhook 2 may be 8 mm, 10 mm, or 12 mm.

[0174] By installing the earphone 100 in this manner, when the earphone 100 is worn, at least a portion of the fixing block 23 and the main module 1 can be positioned on both sides of the same position on the ear part 500, and further, at least a portion of the fixing block 23 and the main module 1 act so that the moment arms are the same on both sides of the same position on the ear part 500, improving the stability and support of the earphone when worn, and when combined with the rear covering part 222, it can effectively improve the comfort of the earphone when worn. Furthermore, the fixed block 23 at one end of the elastic frame 21 extends between the extension plane of the upper surface US and the extension plane of the lower surface LS2 and is set to the above dimensions, so that the moment arm of the elastic frame 21 and the fixed block 23 as a whole relative to the first end 201 of the ear hook 2 is large and can be easily deformed when worn, that is, the same clamping effect is maintained while reducing the pressure applied to the user's ear, improving wearing comfort, while providing better support and allowing the rear covering part 222 to fit more firmly against the user's ear, and furthermore, the cushioning ability provides better wearing comfort.

[0175] As shown in FIG. 26, in some embodiments, a buffer cavity 220 is formed in the rear covering portion 222, and at least a portion of the buffer cavity 220 is located in a portion of the rear covering portion 222 that is located opposite the free end 102.

[0176] When the earphone 100 is in a worn state, at least a portion of the buffer cavity 220 and the free end 102 are respectively located on both sides of the same position on the ear portion 500, and further, at least a portion of the rear covering portion 222 and the free end 102 act so that the moment arms are the same on both sides of the same position on the ear portion 500. The buffer cavity 220 reduces the size of the rear covering portion 222 and provides a deformation space for the rear covering portion 222 to deform, thereby allowing the rear covering portion 222 to more easily deform to fit the shape of the ear portion 500 when subjected to force, reducing the force applied to the ear portion 500 between the free end 102 and the rear covering portion 222, making it easier for users to wear the earphone 100 and improving wearing comfort.

[0177] As shown in Figures 1 and 26, in some embodiments, the free end 102 is positioned so that it enters the concha cavity 502 of the ear portion 500 when worn, the free end 102 and the rear covering portion 222 are positioned so that they jointly hold the ear portion 500 region corresponding to the concha cavity 502 from both the front and rear sides when worn, and the buffer cavity 220 is located in the part of the rear covering portion 222 that holds the ear portion 500 region.

[0178] By positioning the free end 102 so that it enters the cavity of the concha 502 of the ear part 500 when worn, the ear can easily receive sound generated from the earphone 100. When the earphone 100 is worn, at least a part of the buffering cavity 220 and the free end 102 are respectively located on both the front and rear sides of the area of ​​the ear part 500 corresponding to the cavity of the concha 502, and further, the part of the rear covering part 222 that clamps the area of ​​the ear part 500 and the free end 102 act so that the moment arms are the same on both the front and rear sides of the area of ​​the ear part 500 corresponding to the cavity of the concha 502. The cushioning cavity 220 reduces the dimensions of the rear covering part 222 and provides a deformation space for the rear covering part 222 to deform, so that the rear covering part 222 can more easily deform to fit the shape of the ear part 500 when subjected to force, and the force that the area of ​​the ear part 500 corresponding to the concha cavity 502 receives between the free end 102 and the rear covering part 222 is reduced, making it easier for the user to wear and improving wearing comfort.

[0179] 22 , in some embodiments, the buffer cavity 220 is configured as an elongated through-hole or groove, and the ratio of the extension length T3 of the buffer cavity 220 along the extension direction to the extension length D2 of the rear covering portion 222 along the extension direction is 1 / 2 or more and 4 / 5 or less. For example, the range of the value of the ratio of the extension length T3 of the buffer cavity 220 along the extension direction to the extension length D2 of the rear covering portion 222 along the extension direction is 0.6 to 0.7. For example, the ratio of the extension length T3 of the buffer cavity 220 along the extension direction to the extension length D2 of the rear covering portion 222 along the extension direction is 1 / 3.

[0180] By installing it in this manner, the buffer cavity 220 can provide sufficient deformation space for the rear covering part 222, and also maintain good support performance for the rear covering part 222. By installing the buffer cavity 220, it is easy to realize tactile recognition by the buffer cavity 220 when putting on or taking off the bag.

[0181] 24 and 25 , in some embodiments, the ear hook 2 further includes an insert member 24, which is fixed to one end of the elastic frame 21 adjacent to the first end 201, and which is inserted into and fixed to the main module 1. An extension length T4 of the insert member 24 along the extension direction is greater than an extension length D4 of the fixed block 23 along the extension direction.

[0182] The installation of the insert member 24 facilitates assembly of the ear hook 2 and the main module 1. For example, the ear hook 2 and the main module 1 can be locked together by the insert member 24. Setting the extension length T4 of the insert member 24 along its extension direction to be greater than the extension length D4 of the fixing block 23 along its extension direction is advantageous in improving the connection stability between the ear hook 2 and the main module 1. Furthermore, this installation improves the precision of the outer shape of the insert member 24 at one end adjacent to the main module 1 when the ear hook 2 is injection molded, thereby improving the product uniformity of the entire ear hook 2.

[0183] 22, 24, and 25, in some embodiments, the elastic frame 21 is inserted into an insert member 24, and third positioning holes 241 are formed on the periphery of the insert member 24. The main body module 1 has a length direction X, a width direction Z, and a thickness direction Y that are perpendicular to one another, and the main body module 1 is stacked on the ear portion 500 along the thickness direction Y in an attached state. The third positioning holes 241 extend along the thickness direction Y.

[0184] By installing the third positioning hole 241, it is easier for the external positioning device to position the inserting member 24 during the production process of the ear hook 2, and further, it reduces the deformation of the elastic frame 21 during the production process of the ear hook 2, makes the shape and position dimensions of each component of the ear hook 2 more accurate, and improves the yield of the ear hook 2.

[0185] The insert 24 can be formed by injection molding, and the third positioning hole 241 is formed in the insert 24 by injection molding. By arranging the third positioning hole 241 to extend along the thickness direction Y, the mold opening direction and the mold moving away from the third positioning hole 241 coincide during the injection molding process, which makes it easier for the insert 24 to be released from the mold.

[0186] Furthermore, since the third positioning hole 241 is a blind hole, it is easy to demold during injection molding, while the third positioning hole 241 can be prevented from penetrating the fixed block 23, thereby allowing the fixed block 23 to maintain high strength.

[0187] In some embodiments, as shown in Figures 14 and 15a, the main module 1 has a length direction X, a width direction Z, and a thickness direction Y that are perpendicular to each other, and the main module 1 is stacked on the ear portion along the thickness direction Y when worn, and the extension direction of one end of the elastic frame 21 adjacent to the first end 201 and the length direction X form a first angle Q1 facing the ear hook 2, and the extension direction of the insert 24 and the length direction X form a second angle Q2 facing the ear hook 2, and the first angle Q1 is smaller than the second angle Q2.

[0188] The earphone 100 and other electronic devices 300, such as computers, mobile phones, and tablet computers, may be provided with a charging port, a data transmission interface, or both. The following provides an exemplary description of the interface of the electronic device 300.

[0189] 27, the electronic device 300 may include a battery 14 and an interface circuit 310. The interface circuit 310 is coupled to the battery 14, allowing an external charging device to charge the battery 14 via the interface circuit 310. The electronic device 300 may be a mobile phone, a computer, an earphone device, or other device. The external charging device may be a mobile battery, a charging pile, or other device that can output electrical energy to the electronic device 300 via the interface circuit 310.

[0190] In some embodiments, as shown in FIGS. 7 , 8 , and 27 , the electronic device 300 may include a charging case 900 and the earphones 100. The charging case 900 accommodates and charges the earphones 100. The interface circuit 310 may be installed in the charging case 900 so that an external charging device can charge the charging case 900 through the interface circuit 310. This allows the charging case 900 to obtain electrical energy from the external charging device and charge the earphones 100 when they are accommodated in the charging case 900.

[0191] 28 , the interface circuit 310 may include a power receiving port 311 and a predetermined thermistor 312. The power receiving port 311 may include an identification pin A5 (B5). When the interface circuit 310 is coupled to an external charging device, the identification pin A5 (B5) allows the external charging device to detect the coupling status between the interface circuit 310 and the external charging device and continuously transmit the coupling status to the external charging device. This allows the external charging device to grasp the coupling status between the interface circuit 310 and the external charging device in real time and respond in a timely manner according to the detected coupling status to minimize safety accidents. In some embodiments, the external charging device may be configured to discontinuously detect the coupling status between the interface circuit 310 and the external charging device. For example, the external charging device may detect the coupling status every 5 seconds or every 10 seconds, thereby reducing energy consumption of the external charging device and the electronic device 300.

[0192] The predetermined thermistor 312 may be configured to change the coupling state of the interface circuit 310 detected by the external charging device in response to a temperature change in the power receiving port 311. As shown in Fig. 28, the predetermined thermistor 312 may be coupled to the identification pin A5 (B5). After detecting a temperature change in the power receiving port 311, the predetermined thermistor 312 further changes the coupling state between the interface circuit 310 and the external charging device based on the temperature of the power receiving port 311, and the coupling state is transmitted to the external charging device via the identification pin A5 (B5). By installing a specific thermistor 312 in the interface circuit 310 and an identification pin A5 (B5) connected to the specific thermistor 312, when the electronic device 300 is connected to an external charging device via the interface circuit 310 and charged, the external charging device can timely monitor the temperature of the power receiving port 311, grasp the coupling state between the interface circuit 310 and the external charging device in real time, and take prompt action according to the detected coupling state, thereby protecting the electronic device 300 in a timely manner and avoiding safety accidents as much as possible.

[0193] In some embodiments, the power receiving port 311 may be a Type-C port, and the identification pin A5 (B5) may be a CC (Configuration Channel) pin. Specifically, a Type-C port is a USB port with an external appearance standard that is smaller in volume than both Type-A and Type-B ports and is applicable to both PCs (master devices) and external devices (slave devices, e.g., mobile phones, earphones 100, or charging cases 900). The CC pin is primarily used to identify and communicate the type of device inserted into the power receiving port 311 and to confirm the data transmission direction and the insertion direction (forward or reverse). In some embodiments, the CC pin is connected to a predetermined thermistor 312, allowing the external charging device to directly receive data information related to the coupling state via the CC pin. This improves the efficiency with which the external charging device determines the coupling state between the interface circuit 310 and the external charging device, reduces the internal assembly and space of the interface circuit 310, and further improves the space utilization of the interface circuit 310.

[0194] Of course, in other embodiments, the power receiving port 311 may be another port such as Type-A or Type-B, and the identification pin A5 (B5) may be another pin such as a VBUS pin.

[0195] In some embodiments, the resistance value of the predetermined thermistor 312 can change according to a temperature change of the power receiving port 311, so that the external charging device detects the coupling state based on the resistance value of the predetermined thermistor 312 via the identification pin A5 (B5). The predetermined thermistor 312 may specifically be a sensor resistor, whose typical feature is that its resistance value can change according to a temperature change, i.e., its resistance value is different at different temperatures, so that the resistance value of the predetermined thermistor 312 can directly reflect the temperature change of the power receiving port 311. By configuring the external charging device to directly detect the coupling state between the external charging device and the interface circuit 310 based on the resistance value of the predetermined thermistor 312, the coupling state obtained by the external charging device can be more accurate.

[0196] In some embodiments, the identification pin A5 (B5) may be grounded via a predetermined thermistor 312. Specifically, the predetermined thermistor 312 is disposed between the identification pin A5 (B5) and the ground line. When an external charging device is connected to the power receiving port 311, if the temperature of the predetermined thermistor 312 becomes too high and its resistance becomes too high, the predetermined thermistor 312 may block the connection between the identification pin A5 (B5) and the ground line. The resistance of the predetermined thermistor may approach infinity, causing the external charging device to be disconnected from the ground line. This allows the external charging device to determine its coupling status with the interface circuit 310 by connecting to the ground line. By directly connecting the predetermined thermistor 312 to the identification pin A5 (B5), the predetermined thermistor 312 can directly detect and reflect temperature changes at the power receiving port 311, be less susceptible to the influence of other circuit assemblies, and more accurately transmit information about the coupling status between the interface circuit 310 and the external charging device to the external charging device.

[0197] In some embodiments, the predetermined thermistor 312 may be installed so that when its resistance value is within a predetermined resistance range, the coupling state detected by the external charging equipment is normal, and when its resistance value is not within the predetermined resistance range, the coupling state detected by the external charging equipment is abnormal.

[0198] The predetermined resistance range can be set with reference to the temperature threshold that the receiving port 311 can withstand when operating normally, so that it can indicate that the operating temperature of the receiving port 311 is normal when coupled to an external charging device.

[0199] When the resistance value of a certain thermistor 312 is within a certain resistance range, it indicates that the temperature of the power receiving port 311 is normal, and at this normal temperature, the power receiving port 311 can maintain normal functions such as power supply and communication with the external charging device, and further indicates that the connection status between the power receiving port 311 and the external charging device detected by the external charging device is normal.

[0200] If the resistance value of the specified thermistor 312 is not within the specified resistance range, it indicates that the temperature of the power receiving port 311 detected by the specified thermistor 312 is too high. This excessively high temperature will affect the power receiving port 311's functions such as normal communication with the external charging device or power supply, so at this time, the coupling state detected by the external charging device is abnormal.

[0201] For example, the predetermined resistance range may be 4.9 kΩ to 5.3 kΩ. When the resistance value of the predetermined thermistor 312 is between 4.9 kΩ and 5.2 kΩ, the coupling state detected by the external charging device is normal. When the resistance value of the predetermined thermistor 312 is less than 4.9 kΩ or greater than 5.2 kΩ, the coupling state detected by the external charging device is abnormal. Of course, in other embodiments, the predetermined resistance range may be other values. For example, when a different type of thermistor is used, the predetermined resistance range may be other resistance ranges corresponding to the thermistor, such as 4.7 kΩ to 5.4 kΩ, 5 kΩ to 5.5 kΩ, etc., and these ranges are not specifically listed herein.

[0202] By setting a predetermined resistance range for the predetermined thermistor 312 and detecting whether the real-time resistance value of the predetermined thermistor 312 is within the predetermined resistance range to reflect the coupling state between the power receiving port 311 and the external charging device, the external charging device can obtain more accurate detection results and further improve the safety of the interface circuit 310.

[0203] In some embodiments, the nominal resistance of the predetermined thermistor 312 may be 4.8 KΩ to 5.4 KΩ. This configuration allows the predetermined thermistor 312 to detect a wider range of operating temperatures, improves the sensitivity of the predetermined thermistor 312, and enables the external charging device to more accurately detect the power receiving port 311. In other embodiments, depending on the type of thermistor, the nominal resistance of the predetermined thermistor 312 may be a different resistance corresponding to the thermistor. For example, the nominal resistance of the predetermined thermistor 312 may be 4.5 KΩ to 5.5 KΩ, 4.9 KΩ to 5.3 KΩ, or other values, and is not specifically limited herein.

[0204] In some embodiments, the predetermined thermistor 312 may be configured so that its resistance value is within a predetermined resistance range when the temperature of the power receiving port 311 is within a predetermined temperature range, and is not within the predetermined resistance range when the temperature of the power receiving port 311 is not within the predetermined temperature range.

[0205] Specifically, the predetermined temperature range may refer to the normal temperature of the power receiving port 311 when coupled to an external charging device to enable normal power supply, communication, and other operations, and the predetermined resistance range is configured to correspond to the predetermined temperature range. Therefore, when the temperature of the power receiving port 311 is within the predetermined temperature range, the resistance value of the predetermined thermistor 312 is within the predetermined resistance range, and the coupling state detected by the external charging device is normal. When the temperature of the power receiving port 311 is not within the predetermined temperature range, the resistance value of the predetermined thermistor 312 is not within the predetermined resistance range, and the coupling state detected by the external charging device is abnormal.

[0206] In some embodiments, when the operating temperature of the power receiving port 311 is between 0°C and 45°C, the power receiving port 311 can normally supply power, communicate, and perform other functions with the external charging device. Therefore, the predetermined temperature range can be set to 0°C to 45°C, and the predetermined resistance range corresponding to the predetermined temperature range can be set to 4.9 KΩ to 5.3 KΩ. When the coupling state detected by the external charging device is normal, the temperature of the power receiving port 311 is within the predetermined temperature range of 0°C to 45°C, and the resistance value of the predetermined thermistor 312 is between 4.9 KΩ and 5.3 KΩ, indicating that the power receiving port 311 is in a normal operating state. When the temperature of the power receiving port 311 is higher than 45°C, the power receiving port 311 is not suitable for receiving power or communication from the external charging device. Accordingly, the resistance value of the predetermined thermistor 312 exceeds the predetermined resistance range, for example, is lower than 4.9 KΩ or higher than 5.3 KΩ, and the coupling state detected by the external charging device is abnormal. In some embodiments, if the maximum temperature that the power receiving port 311 can withstand is 80°C, the predetermined temperature range may be set to 0°C to 75°C. In this case, when the temperature of the power receiving port 311 exceeds the predetermined temperature range, the resistance value of the predetermined thermistor 312 approaches zero or infinity, and the coupling state detected by the external charging device is abnormal.

[0207] Of course, in other embodiments, the predetermined temperature ranges may be other values, and the predetermined resistance ranges corresponding to the predetermined temperature ranges may also be other values, and this application does not specifically list them one by one.

[0208] In the above embodiment, a predetermined resistance range is set based on the normal operating temperature range of the power receiving port 311, and the coupling status between the power receiving port 311 and the external charging device is obtained based on this resistance range. This allows the external charging device to timely monitor the temperature of the power receiving port 311, timely grasp abnormal conditions of the power receiving port 311, and timely respond, thereby improving the operational safety of the interface circuit 310.

[0209] 29, the power receiving port 311 may include a power supply pin A4 (B4), which can receive a charging voltage output from an external charging device when the interface circuit 310 is coupled to the external charging device. When the external charging device detects that the coupling state is abnormal, it stops outputting the charging voltage to the power supply pin A4 (B4).

[0210] In some embodiments, the power supply pin A4 (B4) may be a VBUS pin and can be connected to a pin that outputs a voltage from an external charging device so that when an external charging device is coupled to the power receiving port 311, the power supply pin A4 (B4) can receive the charging voltage output from the external charging device, thereby enabling the external charging device to charge the electronic device 300 via the power supply pin A4 (B4).

[0211] Specifically, when the external charging device detects that the connection state is abnormal, the temperature of the power receiving port 311 exceeds the predetermined temperature range, indicating that the temperature of the power receiving port 311 is too high or too low, at this time the external charging device stops outputting the charging voltage to the power supply pin A4 (B4), thereby protecting the power receiving port 311 and avoiding safety accidents as much as possible.

[0212] In some embodiments, as shown in FIG. 29, the number of identification pins A5 (B5) may be two, and the number of predetermined thermistors 312 may be two, with the two identification pins A5 (B5) and the two predetermined thermistors 312 having a one-to-one correspondence.

[0213] By installing two identification pins A5 (B5), the power supply and communication functions between the power receiving port 311 and the external charging device can be enhanced, and by installing two specified thermistors 312, the temperature of the power receiving port 311 can be double-detected, thereby making the temperature detection of the power receiving port 311 by the external charging device more accurate.

[0214] In some embodiments, as shown in FIG. 29, the number of the power supply pins A4 (B4) may be two, which are the first power supply pin A4 (B4) and the second power supply pin A4 (B4).

[0215] In some embodiments, as shown in FIG. 29, the power receiving port 311 may further include a ground pin, a receive pin, a transmit pin, a double-sided insert pin, and an auxiliary pin.

[0216] The ground pin is connected to a ground line. For example, the ground pin may be a GND pin. Preferably, the number of ground pins may be four, and the four ground pins are a first ground pin A1, a second ground pin A12, a third ground pin B1, and a fourth ground pin B12, respectively.

[0217] The transmitting pins may include a positive transmitting pin and a negative transmitting pin. The number of positive transmitting pins and the number of negative transmitting pins may both be set to two, and the positive transmitting pins include a first positive transmitting pin A2 and a second positive transmitting pin B2, and the negative transmitting pins include a first negative transmitting pin A3 and a second negative transmitting pin B3. The transmitting pins transmit data at high speed. After an external device is inserted and coupled to the power receiving port 311, the transmitting pins transmit the transmitted data to the external device at high speed.

[0218] The receiving pins may include a positive receiving pin and a negative receiving pin. The number of positive receiving pins and the number of negative receiving pins may both be set to two, and the positive receiving pins include a first positive receiving pin A10 and a second positive receiving pin B10, and the negative receiving pins include a first negative receiving pin A11 and a second negative receiving pin B11. After an external device is inserted and coupled to the power receiving port 311, the receiving pins receive data transmitted from the external device at high speed.

[0219] The double-sided insertion pins may include a double-sided positive pin and a double-sided negative pin. For example, the double-sided positive pin is a D+ pin, and the double-sided negative pin is a D- pin. There may be two double-sided positive pins and two double-sided negative pins. The double-sided positive pins include a first double-sided positive pin A6 and a second double-sided positive pin B6, and the double-sided negative pins include a first double-sided negative pin A7 and a second double-sided negative pin B7. The double-sided insertion pins transmit two sets of USB 2.0 signals. The double-sided positive pin and the double-sided negative pin are connected crosswise, so data can be transmitted regardless of the orientation of the external device.

[0220] The auxiliary pin can assist the power receiving port 311 and the external charging device in transmitting auxiliary signals in some special modes. The auxiliary pin can be an SBU pin. There can be two auxiliary pins, a first auxiliary pin A8 and a second auxiliary pin B8.

[0221] The above description is merely a part of the embodiments of the present application and is not intended to limit the scope of protection of the present application. Any conversion of an equivalent device or equivalent process based on the contents of the specification and drawings of the present application, or direct or indirect application to other related technical fields, is also included in the patent protection scope of the present application. [Explanation of symbols]

[0222] 100 earphones 1 Main module 10 Housing Assembly 13 speakers 2 ear hooks 102, 201 1st end 103, 202 2nd end 223 First positioning hole 231 Second positioning hole 21 Elastic Frame 22 Covering material 2201 First Covering Section 2202 Second Covering Section 220 Buffer Cavity 221 Front cover 222 Rear covering part 23 Fixed Block 24 Insertion member 25 Filler material

Claims

1. A main body module; an earhook that is curved and has a first end connected to the main module and a second end spaced from the first end, the earhook being placed around a user's ear, the earhook including an elastic frame extending along the extension direction of the earhook, and a covering member that covers the elastic frame and has a buffer cavity installed therein.

2. The earphone according to claim 1 , wherein the buffer cavity is closer to the second end of the first end and the second end.

3. 3. The earphone according to claim 2, wherein the covering member has a rear covering portion located behind the ear portion when worn, the second end is located in the rear covering portion, and the buffer cavity is formed in the rear covering portion.

4. 4. The earphone according to claim 3, wherein the main module includes a connection end connected to the first end of the earhook and a free end spaced from the connection end, at least a portion of the rear covering portion is positioned opposite the free end, and at least a portion of the buffer cavity is located in the portion of the rear covering portion positioned opposite the free end.

5. 5. The earphone according to claim 4, wherein the free end is arranged to enter the cavity of the concha of the ear when worn, the free end and the rear covering part are arranged to jointly hold the ear area corresponding to the cavity of the concha from both the front and rear sides when worn, and the buffer cavity is located in the part of the rear covering part that holds the ear area.

6. The earphone according to claim 5, wherein the main module has a length direction, a width direction, and a thickness direction that are perpendicular to one another, the main module is stacked on the ear part along the thickness direction when worn, and an orthogonal projection of the buffer cavity onto a reference plane perpendicular to the length direction partially overlaps with an orthogonal projection of the free end onto the reference plane.

7. 3. The earphone according to claim 2, wherein the main module has length, width, and thickness directions that are perpendicular to one another, the main module is stacked on the ear portion along the thickness direction when worn, the main module has an inner side that faces the ear portion along the thickness direction when worn, an outer side that is away from the ear portion, and upper and lower sides that connect the inner and outer sides, the upper side faces the ear hook, and the upper and lower sides are installed with a gap in the width direction, the covering member is divided into a front covering portion and a rear covering portion with the extension plane of the upper side as a boundary, the first end is located in the front covering portion, the second end is located in the rear covering portion, and the buffer cavity is formed in the rear covering portion.

8. The earphone according to claim 6 or 7, wherein the buffer cavity has a dimension in the width direction that is larger than the dimension in the width direction of the main body module.

9. 2. The earphone according to claim 1, wherein the covering member includes a front covering part and a rear covering part, the front covering part covers the elastic frame, the front covering part and the rear covering part are connected in order in the extending direction, the rear covering part does not cover the elastic frame, and the buffer cavity is formed in the rear covering part.

10. 10. The earphone according to claim 9, wherein the earhook includes a fixing block, the fixing block being fixed to one end of the elastic frame close to the second end, the front covering part covering the fixing block, and an extension length of the rear covering part along the extension direction is greater than an extension length of the fixing block along the extension direction.

11. 11. The earphone according to claim 10, wherein a ratio of an extension length of the rear covering portion along the extension direction to an extension length of the front covering portion along the extension direction is equal to or greater than 1 / 5 and equal to or less than 1 / 2.

12. The earphone according to claim 11, wherein the extension length of the front covering portion along the extension direction is 50 mm to 70 mm, and the extension length of the rear covering portion is 10 mm to 30 mm.

13. The earphone according to claim 10, wherein the ear hook further includes an insert member, the insert member being fixed to one end of the elastic frame adjacent to the first end, and the insert member being inserted into and fixed to the main module.

14. 2. The earphone according to claim 1, wherein the earhook includes a fixing block, the fixing block being installed at one end of the elastic frame close to the second end, the covering member covering the fixing block, and the fixing block being located on a side of the buffer cavity away from the main body module.

15. The earphone according to claim 14, wherein the fixing block is located between both ends of the buffer cavity along the extension direction of the earhook, and is closer to one end of the buffer cavity that is closer to the second end.

16. The buffer cavity is hermetically installed and formed inside the covering member, or The earphone according to claim 1, wherein the buffer cavity is configured as a hole or a groove.

17. The earphone according to claim 1, characterized in that the main module has a length direction, a width direction, and a thickness direction that are perpendicular to each other, the main module is stacked on the ear part along the thickness direction when worn, and the buffer cavity is installed in the form of a hole and penetrates the covering member along the thickness direction.

18. The earphone according to claim 17, characterized in that the buffer cavity is arranged in the shape of an elongated curved through-hole, and the curvature direction of the buffer cavity coincides with the curvature direction of the portion of the covering member in which the buffer cavity is formed.

19. The number of the buffer cavities is at least two, and the at least two buffer cavities are spaced apart along the extension direction; and / or The ear hook further includes a filler member, the hardness of the filler member being less than the hardness of the covering member, the filler member being disposed within the cushioning cavity; and / or 2. The earphone according to claim 1, wherein the covering member has an inner surface facing the main module and an outer surface away from the inner surface, and the inner surface is located closer to the buffer cavity than the outer surface.

20. The elastic frame has a predetermined radial direction perpendicular to an extension direction of the elastic frame and passing through the buffer cavity; The earphone according to claim 1 , wherein the buffer cavity is spaced apart from the elastic frame in the predetermined radial direction.

21. The earphone according to claim 20, wherein the buffer cavity is closer to the main body module in the predetermined radial direction than the elastic frame so as to be closer to the ear portion when the earphone is worn.

22. The earphone according to claim 21, characterized in that the covering member includes a first covering portion and a second covering portion located on both sides of the buffer cavity along the predetermined radial direction, the first covering portion and the second covering portion being spaced apart to form the buffer cavity, the first covering portion being closer to the main body module than the second covering portion and contacting the ear portion, and the elastic frame being perforated in the second covering portion.

23. 21. The earphone of claim 20, wherein the elastic frame extends from the first end to the second end.

24. 24. The earphone according to claim 23, wherein the earhook includes a fixing block, the fixing block being fixed to one end of the elastic frame adjacent to the second end, the fixing block being bent and extending from the elastic frame toward the buffer cavity, and the fixing block being bent and extending above the buffer cavity in the extending direction from the first end to the second end of the earhook.

25. 25. The earphone of claim 24, wherein one end of the elastic frame adjacent to the second end is inserted into the fixing block, and the circumferential dimension of the one end of the fixing block away from the elastic frame is greater than the circumferential dimension of the one end of the fixing block inserted into the elastic frame.

26. The earphone of claim 25, wherein a first positioning hole is formed in the ear hook, a second positioning hole is formed in the fixing block, the second positioning hole is located at one end of the fixing block away from the elastic frame, and the first positioning hole and the second positioning hole are installed opposite each other.

27. 2. The earphone according to claim 1, wherein the ear hook includes an insert member, one end of the elastic frame adjacent to the first end is inserted into the insert member, and the extension direction of the one end of the elastic frame adjacent to the first end intersects with the extension direction of the insert member.

28. 28. The earphone of claim 27, wherein the main module has length, width, and thickness directions that are perpendicular to each other, the main module is stacked on the ear portion along the thickness direction when worn, the extension direction of one end of the elastic frame closest to the first end and the length direction form a first angle facing the ear hook, the extension direction of the insert member and the length direction form a second angle facing the ear hook, and the first angle is smaller than the second angle.

29. 29. The earphone according to claim 28, wherein the first angle is between 70° and 110°, and the second angle is between 90° and 130°.

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