earphones

Abstract

The present application provides an earphone (100), which includes: a housing assembly (10) forming an accommodating space (101), the housing assembly having a first direction and a second direction orthogonal to the first direction, and further having a first end (102) and a second end (103) disposed on opposite sides along the first direction; an earhook (2) connected to the housing assembly (10), at least a portion of which is located behind a user's ear when worn, the housing assembly (10) being stacked on the front of the user's ear along the second direction, and at least a portion of the first end (102) of the housing assembly (10) entering a cavity of the concha (502) of the user's ear; and a speaker (13) disposed within the accommodating space (101) to provide sound to the user's ear, wherein, when worn, an outer wall surface of the housing assembly (10) facing the user's ear in the first direction is disposed in an arched shape away from the user's ear.

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 an essential social and entertainment tool 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, some current earphones are unable to fit snugly to the shape of the user's ear when worn, which can cause problems such as pressing down on the user's ear or making the ears uncomfortable to wear. Summary of the Invention

[0004] The earphones of the present application include a housing assembly that forms an accommodating space, the housing assembly having a first direction and a second direction that is set perpendicular to the first direction, and further having a first end and a second end that are set on opposite sides along the first direction; an ear hook that is connected to the housing assembly and has at least a portion that is located behind the user's ear when worn, the housing assembly being stacked in front of the user's ear along the second direction, and at least a portion of the first end of the housing assembly entering the concha cavity of the user's ear; and a speaker that is set in the accommodating space and provides sound to the user's ear, and in the first direction, the outer wall surface of the housing assembly that faces the user's ear when worn is set in an arched shape away from the user's ear.

[0005] According to the above embodiment, the pressure on the tragus from the outer wall surface facing the user's ear can be reduced, and it is also advantageous for the first end of the housing assembly to enter the user's concha cavity, further improving the stability of the fit.

[0006] In some embodiments, the first end has a first reference point that is farthest from the second end in the first direction, and the distance of the dome of the outer wall surface to the first reference point in the first direction is 14 mm to 20 mm.

[0007] In some embodiments, in the second direction, the outer wall surface has a second reference point that is adjacent to the second end and closest to the user's ear when worn, and the distance of the second reference point to the first reference point in the first direction is 20 mm to 31 mm.

[0008] In some embodiments, the second reference point is positioned so that it abuts the skin of the face in front of the tragus of the user's ear when worn.

[0009] In some embodiments, the distance of the outer wall surface to the second reference point in the second direction of the dome is 1.3 mm to 2.2 mm.

[0010] In some embodiments, in the second direction, the outer wall surface has a third reference point that is adjacent to the first end and closest to the user's ear when worn, and the distance of the third reference point to the first reference point in the first direction is 3 mm to 5 mm.

[0011] In some embodiments, the distance of the dome of the outer wall surface to the third reference point in the second direction is 2 mm to 3 mm.

[0012] In some embodiments, the earphone further includes a battery, and the speaker and the battery are spaced apart in the accommodation space along the first direction.

[0013] In some embodiments, a partition wall is provided on the inner wall surface of the housing assembly facing the user's ear, adjacent to the dome on the outer wall surface, and the speaker is located on the side facing the first end of the partition wall and the battery is located on the side facing the second end of the partition wall.

[0014] In some embodiments, the speaker has a first axis, the battery has a second axis, the first axis and the second axis each have a positive direction facing the user's ear, and within a reference plane defined by the first direction and the second direction, the projection of the first axis and the projection of the second axis are installed to intersect, and the intersection angle of the positive directions of the two is 11° to 14°.

[0015] 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]

[0016] [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] 6 is a schematic diagram showing the positions of the upper reference points of the first and second housing portions in FIG. 5. FIG. [Figure 7] 6 is a schematic diagram showing the positions of other reference points of the first housing and the second housing portion in FIG. 5. FIG. [Figure 8] 1 is a schematic diagram of an embodiment of an earphone according to the present invention at one viewing angle. [Figure 9]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 10] FIG. 10 is a schematic diagram illustrating the configuration of an embodiment of the earphone of the present application at a different viewing angle. [Figure 11] 1 is a schematic diagram illustrating the configuration of an earphone according to an embodiment of the present invention. [Figure 12] FIG. 2 is another schematic diagram of the earphone according to the embodiment of the present invention. [Figure 13] FIG. 10 is a schematic diagram illustrating another embodiment of the earphone according to the present invention. [Figure 14] FIG. 10 is a schematic diagram illustrating yet another embodiment of the earphone according to the present invention. [Figure 15] FIG. 1 is a schematic structural diagram of a part of an assembly of an embodiment of an earphone according to the present application. [Figure 16] FIG. 10 is a schematic structural diagram of another part of the assembly of the earphone according to the embodiment of the present invention. [Figure 17] FIG. 3 is a schematic front view of the earphone shown in FIG. 2. [Figure 18] 18 is a schematic cross-sectional view of the earphone shown in FIG. 17 taken along the MM cutting line. [Figure 19] 18 is a schematic enlarged view of a local area C of the earphone shown in FIG. 17. FIG. [Figure 20] 18 is a schematic enlarged view of a local area B of the earphone shown in FIG. 17. FIG. [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 cross-sectional view of the earphone shown in FIG. 21. [Figure 23] FIG. 22 is a schematic exploded view of the main module of the earphone shown in FIG. 21. [Figure 24] FIG. 24 is a schematic diagram of the frame shown in FIG. 23 assembled in the first accommodating cavity. [Figure 25] FIG. 25 is a schematic diagram of an enlarged structure of region A shown in FIG. 24. [Figure 26] FIG. 25 is a schematic diagram of an enlarged structure of region A shown in FIG. 24. [Figure 27] FIG. 24 is a schematic diagram of the three-dimensional structure of the speaker shown in FIG. 23. [Figure 28]FIG. 24 is a schematic diagram of the assembly of the speaker and bracket shown in FIG. 23. [Figure 29] FIG. 24 is a schematic diagram of the three-dimensional structure of the bracket shown in FIG. 23. DETAILED DESCRIPTION OF THE INVENTION

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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 ear hook 2 may be hook-shaped, and the earphone 100 may be worn near the ear canal of a user's ear via the ear hook 2 in a position that does not block the ear canal. 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. Furthermore, the housing assembly 10 may form an accommodation space 101. The speaker 13 may be installed in the accommodation space 101, and the housing assembly 10 is formed with a sound emission hole for transmitting air-conducted sound provided by the speaker 13 to the ear canal of the user's ear.

[0022] 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, and the first direction X and the second direction Y 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.

[0023] In a worn state, the housing assembly 10 is stacked on the front side 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. In some embodiments, the first end 102 may refer to a portion toward the user's concha 502 during the wearing process, and the second end 103 may refer to a portion farther from the user's concha 502 than the first end 102. In some embodiments, the first end 102 may refer to a portion closer to the back of the user's ear during the wearing process, and the second end 103 may refer to a portion farther from the back of the user's ear than the first end 102. A portion of the second end 103 may be connected to the ear hook 2 and may be referred to as the connected end 103 hereinafter, and the first end 102 may be referred to as the free end 102 hereinafter.

[0024] In some embodiments, at least a portion of first end 102 of housing assembly 10 extends into concha cavity 502 of the user's ear, leaving the ear canal of the user's ear open. An open ear canal of the user refers to the housing assembly 10 not completely blocking the ear canal, or the housing assembly 10 not blocking the ear canal, allowing the ear canal to communicate with the outside environment. Furthermore, due to individual differences among different users, when different users wear earphone 100, housing assembly 10 may partially block the ear canal, but the ear canal may not be completely blocked, allowing communication with the outside environment.

[0025] 5, 6, and 7, in the second direction Y, the housing assembly 10 of the main body module 1 is disposed in an arched shape such that the outer wall surface LS2 facing the user's ear when worn is away from the user's ear. This configuration allows the housing assembly 10 to be designed to fit snugly against the shape of the user's ear, reducing pressure on the user's ear, particularly the tragus 508, and removing restrictions on the extension direction of the plane, which is advantageous for the first end 102 of the housing assembly 10 to fit more smoothly into the user's concha cavity 502, further improving wearing comfort and stability.

[0026] The structural design of the outer wall surface LS2 of the housing assembly 10, which faces the user's ear when worn, affects the overall structure of the housing assembly 10 and further affects the user's wearing comfort. For example, if the structure of the outer wall surface LS2 affects the position of the first end 102 of the housing assembly 10 and the installation of the outer wall surface LS2 causes the housing assembly 10 to extend too short, it may be difficult for the first end 102 of the housing assembly 10 to enter the user's concha 502, or when the first end 102 of the housing assembly 10 enters the user's concha 502, the outer wall surface LS2 may not be able to effectively avoid the user's tragus 508 and may press excessively against the user's tragus 508. Similarly, if the housing assembly 10 is extended longer due to the installation of the outer wall surface LS2, the pressure on the antihelix 505 and the concha cavity 502 by the first end 102 may increase, or the outer wall surface LS2 may not be able to effectively avoid the user's tragus 508 and may press excessively against the user's tragus 508.

[0027] As shown in FIG. 6 , the first end 102 preferably has a first reference point C1 that is farthest from the second end 103 in the first direction X. In some embodiments, the first reference point C1 may be the point on the first end 102 that is farthest from the second end 103 along the first direction X. In some embodiments, the first reference point C1 may be the point on the first end 102 that is farthest from the second end 103 along a tangential direction of the dome of the outer wall surface LS2. Due to the arched configuration of the outer wall surface LS2, a portion of the housing assembly 10 closer to the first end 102 may be too short or too long, which could prevent the first end 102 from better engaging with the concha cavity 502 and reduce wearing comfort for the user. To avoid this, the distance L10 from the dome G1 of the outer wall surface LS2 to the first reference point C1 in the first direction X is between 14 mm and 20 mm. The dome G1 of the outer wall surface LS2 may refer to the deepest recessed point in the arched region or the point in the arched region farthest from the user's ears. The distance from the dome G1 to the first reference point C1 in the first direction X may refer to the projected length in the first direction X of the line connecting the dome G1 and the first reference point C1.

[0028] Furthermore, the distance L10 from the dome G1 of the outer wall surface LS2 to the first reference point C1 in the first direction X can be more appropriately designed to allow the earphone 100 to conform to the shape of the user's ear. In some embodiments, the distance L10 from the dome G1 of the outer wall surface LS2 to the first reference point C1 in the first direction X can be 14 mm to 16 mm to prevent a portion of the housing assembly 10 closest to the first end 102 from being too long and pressing against the cavity of concha 502 of the user's ear when the user's ear is small. In some embodiments, the distance L10 from the dome G1 of the outer wall surface LS2 to the first reference point C1 in the first direction X can be 18 mm to 20 mm to prevent a portion of the housing assembly 10 closest to the first end 102 from being too short and not properly abutting the cavity of concha 502 when the user's ear is large. Specifically, the distance L10 in the first direction X from the dome G1 of the outer wall surface LS2 to the first reference point C1 may be 14.1 mm, 15.2 mm, 16.5 mm, 17.7 mm, 18.6 mm, or 19.9 mm.

[0029] Preferably, the outer wall surface LS2 of the housing assembly 10 facing the user's ear in the second direction Y is adjacent to the second end 103 and has a second reference point C2 that is closest to the user's ear when the device is worn. In some embodiments, the second reference point C2 may be a portion of the outer wall surface LS2 that is closest to the second end 103 and is the point farthest from the dome G1 or a decorative cover (described later) in the second direction Y. To avoid a decrease in wearing stability due to the second end 102 not being securely supported by the user's facial area when the first end 102 enters the concha cavity 502, the distance L12 from the second reference point C2 to the first reference point C1 in the first direction X is 20 mm to 31 mm. Furthermore, the second reference point C2 may be the lowest point on the arched outer wall surface LS2 of the housing assembly 10 facing the user's ear. Preferably, the second reference point C2 is positioned so as to abut against the facial skin in front of the tragus 508 of the user's ear when the device is worn.

[0030] Furthermore, the distance L1 from the second reference point C2 to the first reference point C1 in the first direction X can be more appropriately designed so that the earphone 100 can fit the shape of the user's ear. In some embodiments, if the user's ear is small, the distance L12 from the second reference point C2 to the first reference point C1 in the first direction X can be 20 mm to 24 mm to prevent the first end 102 from not properly abutting the concha 502 when the second reference point C2 is supported by the antitragus. In some embodiments, if the user's ear is large, the distance L12 from the second reference point C2 to the first reference point C1 in the first direction X can be 26 mm to 31 mm to prevent the area where the second reference point C2 is located from being supported by the antitragus and excessively pressing on the user's antitragus. Specifically, the distance L12 from the second reference point C2 to the first reference point C1 in the first direction X may be 21.9 mm, 23.4 mm, 25 mm, 26.4 mm, or 28.02 mm.

[0031] In this case, the earphone 100 can be stably supported on the facial skin area in front of the user's tragus 508 via the second reference point C2, and even when the earphone 100 is supported on the facial skin area in front of the user's tragus 508 via the second reference point C2, the first end 102 can enter the cavity of the concha 502 and is less likely to press excessively on the antihelix 505.

[0032] Preferably, the distance H20 from the dome G1 of the outer wall surface LS2 to the second reference point C2 in the second direction Y is 1.3 mm to 2.2 mm. Furthermore, the distance H20 from the dome G1 of the outer wall surface LS2 to the second reference point C2 in the second direction Y can be more appropriately set so that the earphone 100 can fit the shape of the user's ear. Specifically, the distance H20 from the dome G1 of the outer wall surface LS2 to the second reference point C2 in the second direction Y may be 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, or 2.1 mm. In this case, even when the earphone 100 is supported on the facial skin area in front of the user's tragus 508 via the second reference point C2, the outer wall surface LS2 is unlikely to press excessively against the user's tragus 508.

[0033] Generally, the volume of the cavity of the concha 502 is limited, and if the volume of the first end 102 is too large or too thick, it may be difficult to enter the cavity of the concha 502. If the volume of the first end 102 is too small, it is not easy to utilize the internal space.

[0034] Preferably, the outer wall surface LS2 of the housing assembly 10 facing the user's ear in the second direction Y is adjacent to the first end 102 and has a third reference point C3 that is closest to the user's ear when the housing assembly 10 is worn. In some embodiments, the third reference point C3 may be a portion of the outer wall surface LS2 that is close to the first end 102 and is the point that is farthest from the dome G1 in the second direction Y. In some embodiments, the third reference point C3 may be another lowest point on the arched outer wall surface LS2 of the housing assembly 10 facing the user's ear.

[0035] Preferably, the distance L13 from the third reference point C3 to the first reference point C1 in the first direction X is 3 mm to 5 mm. Furthermore, to enable the earphone 100 to fit the shape of the user's ear and to increase the internal space of the housing assembly 10, the distance L13 from the third reference point C3 to the first reference point C1 in the first direction X needs to be as small as possible without excessively pressing on the cavity of the concha 502. For example, the distance L13 from the third reference point C3 to the first reference point C1 in the first direction X may be 3 mm to 3.5 mm, 3.51 mm to 4 mm, 4.01 mm to 4.5 mm, or 4.51 mm to 5 mm. For example, the distance L13 from the third reference point C3 to the first reference point C1 in the first direction X may be 3.45 mm, 3.8 mm, 4.29 mm, or 4.53 mm. In this case, the first end 102 of the housing assembly 10 can easily fit into the cavity of the concha 502, making it easier to utilize the internal space (for example, making it easier to assemble the speaker 13).

[0036] If the dome G1 of the outer wall surface LS2 is recessed too little into the housing assembly 10, the outer wall surface LS2 may press excessively against the tragus 508 when worn, and if the dome G1 of the outer wall surface LS2 is recessed too much into the housing assembly 10, the curvature of the outer wall surface LS2 and the corresponding inner wall surface LS1 (described later) of the housing assembly 10 may become too large, which may be detrimental to the layout of various components inside the housing assembly 10. Taking these factors into consideration, Preferably, the distance H30 from the dome G1 of the outer wall surface LS2 to the third reference point C3 in the second direction Y is 2 mm to 3 mm. For example, the distance H30 from the dome G1 of the outer wall surface LS2 to the third reference point C3 in the second direction Y may be 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, or 2.9 mm. In this case, the outer wall surface LS2 is less likely to press excessively against the tragus 508 during the wearing process, and the outer wall surface LS2 of the housing assembly 10 is not excessively curved.

[0037] In conventional earphones 100, the battery 14 and the speaker 13 are usually located in two separate housings, which requires a long lead wire to connect the battery 14 and the speaker 13. During the assembly process of the earphones 100 and during user use, the lead wire is often broken by external force, which prevents the earphones 100 from being used normally. Furthermore, separating the battery 14 and the speaker 13 into two housings increases the size of the earphones 100, which also reduces the user's wearing experience.

[0038] In some embodiments, the earphone 100 further includes a battery 14 capable of supplying power to the speaker 13. Because the first end 102 of the housing assembly 10 is closer to the ear canal of the user's ear than the second end 103 when the earphone 100 is worn, the speaker 13 may be located closer to the first end 102 within the housing assembly 10, and the battery 14 may be located closer to the second end 103 within the housing assembly 10. In this case, it is advantageous for the air-conducted sound generated by the speaker 13 to be transmitted to the user's ear canal, ensuring a good listening experience for the user.

[0039] In some embodiments, the speaker 13 and the battery 14 may be spaced apart in the accommodation space 101 formed by the housing assembly 10 along the first direction X. In this case, the speaker 13 and the battery 14 can be assembled into the housing assembly 10 at the same time, which further improves assembly efficiency and reduces the length of the connecting wires, making the connecting wires less susceptible to damage when installed inside the housing assembly 10.

[0040] Furthermore, as shown in FIG. 6 , a partition wall 104 may be installed within the accommodation space 101 of the housing assembly 10. The partition wall 104 can separate the speaker 13 and the battery 14 to prevent damage to the speaker 13 due to leakage from the battery 14, etc. In some embodiments, the partition wall 104 may be integrally molded with the housing assembly 10, thereby improving the uniformity of the housing assembly 10. In some embodiments, the partition wall 104 may be separately molded and attached within the housing assembly 10 by fastening, a sealant, or the like, thereby reducing the difficulty of manufacturing the housing assembly 10. As shown in FIGS. 4 and 5 , for example, the partition wall 104 is installed on the inner wall surface LS1 of the housing assembly 10 facing the user's ear, adjacent to the dome G1 of the outer wall surface LS2. The speaker 13 is located within the accommodation space defined by the partition wall 104 and the first end 102, and the battery 14 is located within the accommodation space defined by the partition wall 104 and the second end 103.

[0041] In some embodiments, the speaker 13 has a first axis ZX1, and 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 and the battery 14 are installed at a relative inclination within a reference plane defined by the first direction X and the second direction Y, so that the positive direction of the first axis ZX1 intersects with the projection of the second axis ZX2 onto the reference plane. This installation improves the space utilization rate of the housing assembly 10 along the first direction X, ensures that the various electronic components can be accommodated without increasing the volume of the housing assembly 10, and prevents the housing assembly 10 of the earphone 100 from being too large and affecting the user's wearing experience. The first axis ZX1 may be parallel to the vibration direction of the diaphragm of the speaker 13 and pass through the axis of the center of gravity of the speaker 13, the geometric center, or centroid of its end face (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, the axis passing through the geometric center or centroid of its two end faces.

[0042] 5, the intersection angle θ between the projections of the positive direction of the first axis ZX1 and the positive direction of the second axis ZX2 onto the reference plane is an acute angle. To reduce the dimension of the housing assembly 10 along the first direction X while avoiding an increase in the dimension of the housing assembly 10 in the second direction Y due to an excessively large tilt angle between the battery 14 and the speaker 13, the intersection angle θ between the projections of the positive direction of the first axis ZX1 and the positive direction of the second axis ZX2 onto the reference plane may be 10° to 14° or 11° to 14°. For example, the intersection angle θ may be 10°, 10.5°, 11°, 11.5°, 12°, 12.5°, 13°, 13.5°, or 14°. In some embodiments, the first axis ZX1 and the second axis ZX2 may be parallel to a reference plane, in which case the angle between the positive direction of the first axis ZX1 and the positive direction of the second axis ZX2 may be equal to the intersection angle θ.

[0043] In some embodiments, in a reference plane defined by a first direction X and a second direction Y, the radial dimension of the speaker 13 is larger than the radial dimension of the battery 14, the second direction Y having a positive direction facing the user's ear, and the intersection angle θ1 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 θ2 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. In some embodiments, the second axis ZX2 may be disposed parallel to the second direction Y, thereby reducing the difficulty of assembling the battery 14. The radial dimension of the speaker 13 may refer to the length 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 perpendicular to the second axis ZX2 in a cross section on the reference plane.

[0044] In this case, because the radial dimension of the speaker 13 is larger than the radial dimension of the battery 14, when the speaker 13 and the battery 14 are arranged side by side in the first direction X, the space occupied by the speaker 13 along the first direction X is larger. Therefore, when the speaker 13 is arranged at an angle with respect to the second direction Y, the influence on the degree of change in the projected length of the housing assembly 10 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 shortening the length of the housing assembly 10 in the first direction X.

[0045] The earphone 100 further includes a circuit board 15. The circuit board 15 is disposed within the receiving space 101 formed by the housing assembly 10 and is positioned away from the user's ear with respect to the speaker 13 and the battery 14. In some embodiments, the number of circuit boards 15 may be one, and the conductors of the battery 14 and the speaker 13 are connected to and controlled by the circuit board 15. The projection of the circuit board 15 along the second direction Y at least partially overlaps the speaker 13 and the battery 14. As shown in FIG. 5 , the circuit board 15 may be disposed along the first direction X. This arrangement improves space utilization and reduces production costs while ensuring the performance of the speaker 13 and the battery 14. In some embodiments, the number of circuit boards 15 may be two, and the circuit boards 15 are electrically connected to the battery 14 and the speaker 13, respectively. The axes of the two circuit boards 15 are parallel to the first axis ZX1 of the speaker 13 and the second axis ZX2 of the battery 14, respectively. This arrangement further reduces the volume of the housing assembly 10.

[0046] In some embodiments, 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 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. This can facilitate assembly and disassembly and repair of the earphones 100. The circuit board 15 may be fixed to the second housing 112 of the housing assembly 10 with hot melt. Specifically, several hot melt posts may be provided in the second housing 112, and several corresponding through holes may be provided in the circuit board 15. During assembly, the through holes of the circuit board 15 may be aligned with the hot melt posts of the second housing 112, and the circuit board 15 may be fixed to the second housing with hot melt.

[0047] 5 and 8, the earphone 100 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. By installing the magnetic attraction element 17 between the battery 14 and the first housing 111, the accommodation space 101 can be fully utilized, improving space utilization. In this case, the earphone 100 can be used in combination with a charging case 900 that has a magnetic attraction charging function.

[0048] 9, 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.

[0049] 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. The electrode terminals 912 may be exposed in the contoured grooves 911. 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, they may be collinear with a gap between them.

[0050] 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.

[0051] When the earphone 100 is being worn, the first end 102 of the housing assembly 10 may need to enter the user's cavity of concha 502. Therefore, if the shape of the outer wall surface LS2 of the first end 102 of the housing assembly 10 on the side away from the user's ear does not fit well with the cavity of concha 502, the user may feel an increased sense of foreign body sensation during the process of wearing the earphone 100, which may degrade the experience.

[0052] In some embodiments, the first direction X has a positive direction pointing from the second end 103 to the first end 102, and the outer wall surface LS3 of the housing assembly 10 on the side away from the user's ear may include a first arcuate transition region 105. In a reference plane defined by the first direction X and the second direction Y, the first arcuate transition region 105 gradually approaches the user's ear along the positive direction of the first direction X and forms a first portion of the first end 102. This configuration allows the outer surface of the housing assembly 10 to gradually curve toward the side where the user's ear is located, further enabling it to better adapt to the shape of the concha 502 and reduce a foreign body sensation when worn by the user.

[0053] 7, the radius of curvature of first arcuate transition region 105 gradually decreases along the positive side of first direction X. In this case, the radius of curvature of first arcuate transition region 105 increases on the side away from the user's ear, which is advantageous for arranging components inside housing assembly 10.

[0054] When the speaker 13 and the battery 14 are arranged at an angle, if the extension length of the first arc-shaped transition region 105 in the first direction X is too small, the dimension in the thickness direction of some areas of the housing assembly 10 may become large, which may reduce the space utilization rate inside the housing assembly 10. In consideration of this, in some embodiments, the extension amount L105 of the first arc-shaped transition region 105 in the first direction X is 16 mm or more. In this case, the thickness of each part of the housing assembly 10 can be kept within a reasonable range, and the space utilization rate inside the housing assembly 10 can also be improved.

[0055] As described above, the first end 102 has a first reference point C1 that is farthest from the second end 103 in the first direction X. Since the first reference point C1 has been described above, a detailed description of the first reference point C1 will be omitted here. At the first reference point C1, the angle α1 between the tangent to the first arcuate transition region 105 and the second direction Y may be 5° to 8°. For example, the angle α1 between the first arcuate transition region 105 and the second direction Y at the first reference point C1 is 5°, 5.5°, 6°, 6.5°, 7°, 7.5°, or 8°. In some embodiments, as shown in FIGS. 7 and 10 , the first arcuate transition region 105 further has a first intermediate reference point C4 that is 1.8 mm to 3 mm away from the first reference point C1 along the first direction X. At the first intermediate reference point C4, an angle α2 between a tangent to the first arcuate transition region 105 and the second direction Y is between 35° and 53°. In some embodiments, the first arcuate transition region 105 has a second intermediate reference point C5 that is at a distance L15 of 6 mm to 9 mm from the first reference point C1 along the first direction X. An angle α3 between a tangent to the first arcuate transition region 105 and the second direction Y is between 60° and 80°.

[0056] As described above, by sequentially restricting the shape of the first arc-shaped transition region 105 at the first reference point C1, the first intermediate reference point C4, and the second intermediate reference point C5, the first arc-shaped transition region 105 can be effectively adapted to the shape of the user's concha cavity 502.

[0057] In some specific embodiments, the distance L14 between the first intermediate reference point C4 and the first reference point C1 in the first direction X is 2.35 mm. At the first intermediate reference point C4, the angle α2 between the tangent to the first arcuate transition region 105 and the second direction Y is 43.91°. The distance L14 between the second intermediate reference point C5 and the first reference point C1 in the first direction X is 7.43 mm, and the angle α3 between the tangent to the first arcuate transition region 105 and the second direction Y at the second intermediate reference point C5 is 70.8°.

[0058] In some embodiments, in the second direction Y, the side of the housing assembly 10 facing the user's ear is adjacent to the first end 102 and has a third reference point C3 that is closest to the user's ear. An outer wall surface LS2 of the housing assembly 10 facing the user's ear includes a second arcuate transition region 106 located between the first reference point C1 and the third reference point C3. The first direction X is a negative direction from the first end 102 to the second end 103. The second arcuate transition region 106 gradually approaches the user's ear along the negative direction of the first direction X, forming a second portion of the first end 102. Preferably, the radius of curvature of the second arcuate transition region 106 gradually increases along the negative direction of the first direction X, gradually approaching the user's ear and forming the second portion of the first end 102.

[0059] According to the above embodiment, by fitting the shape of the first end 102 more closely to the shape of the interior of the cavity of the concha, the foreign body sensation when the first end 102 enters the cavity of the concha 502 can be reduced, improving the wearing experience for the user.

[0060] In some embodiments, the distance L13 from the third reference point C3 to the first reference point C1 in the first direction X is between 3 mm and 6 mm. Preferably, the angle α4 between the tangent to the second arcuate transition region 106 at the third reference point C3 and the second direction Y is between 75° and 95°.

[0061] In some specific embodiments, the distance L13 from the third reference point C3 to the first reference point C1 in the first direction X is 4.29 mm, and the angle α4 between the tangent to the second arcuate transition region 106 and the second direction Y at the third reference point C3 is 84.9°.

[0062] According to the above embodiment, by limiting the projected lengths of the third reference point C3 and the first reference point C1 in the first direction X, the projected lengths in the second direction Y, and the inclination of the second arc-shaped transition region 106 between them, the second arc-shaped transition region 106 can be made to fit well inside the user's cavity of concha 502, thereby reducing the foreign body sensation.

[0063] Furthermore, the outer wall surface LS2 of the housing assembly 10 facing the user's ear further includes a third arcuate transition region 107 located on the side of the third reference point C3 away from the first reference point C1, the third arcuate transition region 107 being disposed in an arched shape away from the user's ear. In the first direction X, the dome G1 of the third arcuate transition region 107 has a distance L10 to the first reference point C1 in the first direction X of 15 mm to 18 mm, and a distance H10 to the first reference point C1 in the second direction Y of 1 mm to 3 mm.

[0064] In some specific embodiments, the dome G1 of the third arc-shaped transition region 107 has a distance L10 of 17.7 mm to the first reference point C1 in the first direction X, and a distance H10 of 1.91 mm to the first reference point C1 in the second direction Y. In this case, when wearing the earphone 100, the dome G1 of the third arc-shaped transition region 107 is positioned almost outside the user's tragus 508, reducing the possibility of pressing on the tragus 508.

[0065] 11, as described above, the main body module 1 may include the housing assembly 10. The main body module 1 may further include the speaker 13 and the battery 14 described above.

[0066] 11 , the housing assembly 10 may include an outer housing 11 and a decorative cover 12. The outer housing 11 has an outer surface OS1 that is away from the user's ear when worn, and the decorative cover 12 is installed on the outer surface OS1 of the outer housing 11 and forms a touch positioning area 120 where the user can perform touch positioning. The main body module 1 may further include a touch module 18. The touch module 18 may be installed on the outer housing 11 and have a touch detection area 182 that at least partially overlaps with the touch positioning area 120. When the user touches a corresponding area on the decorative cover 12, the touch detection area 182 can detect the touch.

[0067] The touch positioning area 120 can be used to position the touch detection area 182. When the user senses the touch positioning area 120, the user can roughly know that he or she has reached or approached a touchable area. The touch detection area 182 can detect a user's touch operation. The touch module 18 can realize touch sensing by detecting the user's touch operation through the touch detection area 182, thereby realizing human-computer interaction functions between the earphone 100 and the user. For example, functions such as volume adjustment, on / off control, song switching, play and pause, etc. can be realized, as well as operations such as connecting or disconnecting Bluetooth® and switching between Bluetooth®-connected devices.

[0068] Furthermore, a positioning protrusion 121 may be provided on the external housing 11 and / or the decorative cover 12. The positioning protrusion 121 is located within the touch positioning area 120 and protrudes from the outer surface OS1 of the decorative cover 12 that faces away from the external housing 11. In addition to the touch positioning area 120 providing primary touch positioning, providing the positioning protrusion 121 to protrude from the outer surface OS1 of the decorative cover 12 facing away from the external housing 11 makes it easier for the user to touch the positioning protrusion 121 when touching the external housing 11. This allows the positioning protrusion 121 to serve as a secondary touch positioning function in addition to the decorative cover 12, allowing the user to more accurately determine the position of the touch detection area 182 through the positioning protrusion 121, improving the convenience of touch operations. Furthermore, the decorative cover 12 can provide a unique decorative visual effect to the earphone 100. In addition to the unique visual effect, by overlapping (at least partially overlapping) the touch detection area 182, an additional detection area does not need to be installed, thereby reducing the volume of the earphone 100. The decorative visual effect of the decorative cover 12 allows the user to easily know the location of the touch detection area 182, thereby reducing the user's learning cost and improving the convenience of the user's touch operation.

[0069] 11 , the outer surface OS1 of the external housing 11 and the outer surface OS2 of the decorative cover 12 may together form the outer surface OS of the main module 1. The outer surface OS of the main module 1 is arranged in an arched shape that protrudes outward. In other words, the outer surface OS1 of the external housing 11 and the outer surface OS2 of the decorative cover 12 are both arranged in an arched shape that protrudes outward, which can improve the lateral space utilization of the earphone 100 and make it easier to install other assemblies of the earphone 100 inside the housing assembly 10. Furthermore, the outward arched shape can visually reduce the size of the outer surface OS of the main module 1.

[0070] 11 , the first direction X and the second direction Y of the housing assembly 10 are also the first direction X and the second direction Y of the outer housing 11. The outer housing 11 has a length direction X, a width direction Z, and a thickness direction Y that can be perpendicular to one another, and is stacked on the user's ear along the thickness direction Y when worn. Specifically, the length direction X of the outer housing 11 is indicated by arrow X in FIG. 11 , the thickness direction Y of the outer housing 11 is indicated by arrow Y in FIG. 11 , and the width direction Z of the outer housing 11 is indicated by arrow Z in FIG. 11 , and the directions X, Y, and Z are perpendicular to one another.

[0071] In some embodiments, as shown in FIG. 12 , the dimensional ratio between the decorative cover 12 and the external housing 11 in the length direction X may be 0.5 or more and 0.8 or less. The dimension of the decorative cover 12 in the length direction X can be indicated by length D in FIG. 12 , and the dimension of the external housing 11 in the length direction X can be indicated by length E in FIG. 12 , where 0.5≦D / E≦0.8. For example, the dimensional ratio between the decorative cover 12 and the external housing 11 in the length direction X may be 0.6, 0.7, etc. Preferably, the dimensional ratio between the decorative cover 12 and the external housing 11 in the length direction X is 0.6 or more and 0.7 or less.

[0072] Preferably, the dimensional ratio in the width direction Z between the decorative cover 12 and the external housing 11 may be 0.6 or more and 0.95 or less. The dimension of the decorative cover 12 in the width direction Z can be indicated by length F in FIG. 12, and the dimension of the external housing 11 in the width direction Z can be indicated by length G in FIG. 12, where 0.6≦F / G≦0.95. For example, the dimensional ratio in the width direction Z between the decorative cover 12 and the external housing 11 may be 0.65, 0.75, etc. Preferably, the dimensional ratio in the width direction Z between the decorative cover 12 and the external housing 11 is 0.7 or more and 0.87 or less.

[0073] By installing it in this manner, the dimensional ratio between the decorative cover 12 and the external housing 11 can be set so that the decorative cover 12 occupies a larger portion of the outer surface OS1 of the external housing 11, thereby making it easier for the user to touch the decorative cover 12 when touching the outer surface OS1 of the external housing 11.

[0074] Naturally, in other embodiments, the dimensional ratio between the decorative cover 12 and the external housing 11 may be other dimensional ratios, for example, the dimensional ratio between the decorative cover 12 and the external housing 11 in the length direction X may be 0.3 or more and 0.8 or less, and the dimensional ratio between the decorative cover 12 and the external housing 11 in the width direction Z may be 0.4 or more and 0.9 or less, which are not specifically listed in this embodiment.

[0075] 12, the positioning protrusions 121 may be arranged in a strip shape, with the extending direction H of the positioning protrusions 121 intersecting both the length direction X and the width direction Z. The extending direction H of the positioning protrusions 121 can be indicated by the arrow H in FIG. 12. By arranging them in this manner, when a user touches them with his or her hand, the positioning protrusions 121 intersecting the length direction X and the width direction Z can provide the user with a clear tactile sensation, making it easier for the user to perform touch positioning, and providing the user with a more obvious secondary touch positioning.

[0076] Preferably, the extension direction H of the positioning protrusion 121 is not parallel to either the length direction X or the width direction Z of the outer housing 11, but may be disposed so as to intersect with the length direction X of the outer housing 11 at an acute angle. The angle α between the extension direction H of the positioning protrusion 121 and the length direction X of the outer housing 11 is shown at the corner of FIG.

[0077] Preferably, the angle between the extending direction H of the positioning protrusion 121 and the length direction X of the outer housing 11 may be 30° to 70°, and for example, the angle between the extending direction H of the positioning protrusion 121 and the length direction X of the outer housing 11 may be 40°, 50°, 60°, etc. By installing the positioning protrusion 121 in this manner, the user can easily identify the positioning protrusion 121 by touch.

[0078] 12 and 14 , the external housing 11 may have, in the length direction X, a connection end 103 (also referred to as the second end 103 in some descriptions herein) connected to the ear hook 2, and a free end 102 (also referred to as the first end 102 in some descriptions) spaced apart from the connection end 103. The external housing 11 may be installed by being folded in the thickness direction Y in a direction in which the outer surface OS1 of the external housing 11 faces, so that the free end 102 is closer to the ear canal of the user's ear than the connection end 103, and the decorative cover 12 is closer to the connection end 103. When the earphone 100 is worn on the ear, the free end 102 is closer to the ear and the connection end 103 connected to the ear hook 2 is farther away from the ear. Therefore, by installing the decorative cover 12 so that it is closer to the connection end 103, the user can easily touch the decorative cover 12.

[0079] 13 and 14 , the external housing 11 may be folded in the thickness direction Y in a direction in which the outer surface OS1 of the external housing 11 faces, so that the free end 102 is closer to the ear canal of the user's ear than the connecting end 103. By arranging it in this manner, when the earphone 100 is worn, the decorative cover 12 can be positioned as much as possible in an area parallel to the sagittal plane of the human body, and the folded surface area of ​​the decorative cover 12 that extends into the ear canal can be reduced, which makes it easier for the user to blindly operate it and quickly position the positioning protrusion 121.

[0080] 13, the free end 102 may have a first reference position K1 that is farthest from the connecting end 103 in the longitudinal direction X, and the decorative cover 12 may have a second reference position K2 that is closest to the first reference position K1 in the longitudinal direction X. At least a portion of the free end 102 can enter the cavity of the concha 502 when worn.

[0081] The outer housing 11 has an arc-shaped transition region 114 between the first reference position K1 and the second reference position K2. The arc-shaped transition region 114 gradually approaches the user's ear in the thickness direction Y from the second reference position K2 to the first reference position K1 when the earphone 100 is worn. Therefore, when the earphone 100 is worn, the portion of the earphone 100 corresponding to the arc-shaped transition region 114 gradually approaches the user's ear in the thickness direction Y and can fit snugly against the user's ear, making it easier for the free end 102 to enter the cavity of the concha 502 and improving the comfort and stability of wearing the earphone 100. In addition, the arc-shaped transition region 114 starts from the second reference point position K2 of the decorative cover 12 and gradually slopes in an arc shape toward the first reference position K1, making the second reference position K2 a turning point. This allows the user to more effectively determine the position of the decorative cover 12 and further determine the position of the touch positioning region 120, improving touch convenience. In addition, since the edge of the decorative cover 12 is close to the boundary point where the outer housing 11 curves, it is easy for the user to identify and position the decorative cover 12 when operating the blinds.

[0082] In some embodiments, the roughness of the outer surface OS2 of the decorative cover 12 may be greater than the roughness of the outer surface OS1 of the external housing 11. This creates a difference in tactile sensation when the user touches the decorative cover 12 and the outer surface OS1 of the external housing 11 due to the difference in roughness, allowing the user to easily distinguish between the decorative cover 12 and the external housing 11 and further allowing the user to know the location of the touch detection area 182 and touch it, improving the convenience of touching.

[0083] In some embodiments, the color of the outer surface OS2 of the decorative cover 12 is different from the color of the outer surface OS1 of the external housing 11. For example, the color of the outer surface OS2 of the decorative cover 12 may be red, blue, or the like, and the color of the outer surface OS1 of the external housing 11 may be white, black, or the like, thereby allowing the user to visually distinguish between the decorative cover 12 and the external housing 11. By setting the color of the outer surface OS2 of the decorative cover 12 to be different from the color of the outer surface OS1 of the external housing 11, a color difference can be created on the outer surface OS of the main module 1, which can visually reduce the overall dimensions of the main module 1, improve the visual effect of the earphone 100, and visually reduce its size. Furthermore, the different color of the decorative cover 12 allows the location of the touch detection area 182 to be more clearly identified, allowing the user to easily locate the touch detection area 182, reducing learning costs and improving touch efficiency.

[0084] In some embodiments, the material of the decorative cover 12 may be different from the material of the external housing 11. For example, the material of the decorative cover 12 may be a transparent acrylic plate, and the material of the external housing 11 may be a metal material. Alternatively, the material of the decorative cover 12 may be a metal material, and the material of the external housing 11 may be made of a material such as plastic or resin. By setting the material of the decorative cover 12 to be different from the material of the external housing 11, the user can more easily distinguish between the decorative cover 12 and the external housing 11, and the difference in material can more easily improve the decorative effect of the decorative cover 12. The difference in material can also provide the user with different touch textures, making touch operation easier for the user and improving touch convenience.

[0085] 14 , at least a portion of the edge of the decorative cover 12 may be exposed on the outer surface OS1 of the outer housing 11 to surround the touch positioning area 120. The touch positioning area 120 may be surrounded by at least a portion of the edge of the decorative cover 12 exposed on the outer surface OS1 of the outer housing 11. When a user touches the outer surface OS1 of the outer housing 11, the user can touch the at least a portion of the edge of the decorative cover 12, and the presence of the edge can provide the user with a tactile sensation, allowing the user to clearly know that they have touched the corresponding area, thereby effectively fulfilling the role of positioning.

[0086] Preferably, the edge of the decorative cover 12 is annularly arranged to surround the touch positioning area 120 and may be entirely exposed to the outer surface OS1 of the outer housing 11. The edge of the decorative cover 12 surrounds the positioning protrusion 121. In other words, the entire edge of the decorative cover 12 is exposed to the outer surface OS1 of the outer housing 11, allowing the user to touch the entire edge of the decorative cover 12, improving the positioning effect and further improving the user's touch efficiency. In addition, because the positioning protrusion 121 is arranged in the center of the decorative cover 12 and not close to the edge of the decorative cover 12, the position of the positioning protrusion 121 is more stable and is less likely to come out of the touch positioning area 120 surrounded by the decorative cover 12.

[0087] In some embodiments, as shown in FIG. 14, a positioning groove 113 may be formed on the outer surface of the outer housing 11, and the decorative cover 12 may be received in the positioning groove 113 via a notch in the positioning groove 113.

[0088] Preferably, the shape and size of the positioning groove 113 and the decorative cover 12 may be consistent, which makes it easier to assemble the decorative cover 12 into the positioning groove 113 of the outer housing 11, makes the joint between the two more uniform, and provides a smoother and softer feel.

[0089] Preferably, the seam between the edge of the decorative cover 12 and the notch edge of the positioning groove 113 is exposed on the outer surface and surrounds the positioning protrusion 121. The formation of the seam between the edge of the decorative cover 12 and the edge of the positioning groove 113 can provide a tactile sensation that is clearly different from other positions, allowing the user to quickly and effectively know that they have touched the corresponding area when they touch the seam, thereby improving the user's touching efficiency.

[0090] In some embodiments, the positioning protrusion 121 may be protruded from the outer surface OS1 of the outer housing 11, and the decorative cover 12 may have a positioning hole 122 formed therein, and the positioning protrusion 121 may be drilled into the positioning hole 122. The positioning hole 122 and the positioning protrusion 121 allow the decorative cover 12 and the outer surface OS1 of the outer housing 11 to be accurately assembled, and the positioning with respect to the touch detection area 182 may be more accurate. Furthermore, the engagement between the positioning groove 113 and the positioning protrusion 121 may further improve the assembly accuracy between the decorative cover 12 and the outer housing 11, and the touch positioning area 120 may allow the touch detection area 182 to be more accurately positioned, further improving the accuracy and convenience of touching.

[0091] Preferably, the positioning protrusion 121 is protrudingly installed on the outer surface OS2 of the decorative cover 12 and may be integrally molded with the decorative cover 12, so that the positioning protrusion 121 is more stable and less likely to come off the decorative cover 12, and the position between the positioning protrusion 121 and the touch positioning area 120 is relatively fixed, thereby providing the user with accurate primary touch positioning and secondary touch positioning.

[0092] Preferably, at least two sound pickup holes 115 may be formed on the outer surface OS of the main body module 1. The two sound pickup holes 115 may be located on two opposing slopes of the outer surface OS of the main body module 1. By arranging the two sound pickup holes 115 on two opposing slopes in this way, the two sound pickup holes 115 face in different directions, which expands the sound pickup range of the earphone 100, and by facing in different directions, mutual interference between the two sound pickup holes 115 can be reduced.

[0093] In some embodiments, the positioning protrusion 121 may be arranged in a strip shape, with the two sound pickup holes 115 located on either side of the positioning protrusion 121. By arranging the two sound pickup holes 115 on either side of the positioning protrusion 121 in this way, mutual interference between the two sound pickup holes 115 can be reduced.

[0094] The positional relationship between the touch detection area 182 and the positioning protrusion 121 can be variously configured.

[0095] Form 1: Preferably, the touch detection area 182 may surround the positioning protrusion 121, so that the user can touch the positioning protrusion 121 to accurately position and confirm the position of the touch detection area 182, so that when the user uses the earphone 100, the position of the touch detection area 182 can be quickly and accurately positioned, and the user's usage experience can be optimized.

[0096] Form 2: The touch detection area 182 may be closer to the connecting end 103 than the positioning protrusion 121, making it easier for the user to sense and trigger the touch detection area 182. Or, the touch detection area 182 may surround the positioning protrusion 121, allowing the user to accurately position the touch detection area 182 by the positioning protrusion 121 to trigger the touch module 18.

[0097] In some embodiments, as shown in Figures 15 and 16, the touch module 18 may include a touch metal pattern 181 and a circuit board 15, the circuit board 15 may be installed inside the external housing 11, the touch metal pattern 181 may be installed inside the external housing 11 or may be interposed between the decorative cover 12 and the external housing 11, the touch metal pattern 181 is electrically connected to the circuit board 15, and the touch metal pattern 181 forms a touch detection area 182.

[0098] When a user touches and / or presses the touch positioning area 120 or the positioning protrusion 121, it can trigger the touch metal pattern 181 forming the touch detection area 182, and the touch metal pattern 181 generates a corresponding signal and sends the corresponding signal to the circuit board 15, which can further trigger the response of other functions.

[0099] In some embodiments, the touch metal pattern 181 may be configured as a radio frequency antenna of the earphone 100. The earphone 100 can transmit and receive RF (Radio Frequency) signals through the touch metal pattern 181, thereby expanding the functionality of the earphone 100 and facilitating information exchange between the earphone 100 and other devices.

[0100] Naturally, the number of sound pickup holes 115 may be at least one. The sound pickup hole 115 penetrates at least the external housing 11, and communicates the external environment with the accommodation space 101. Accordingly, the main body module 1 may further include one microphone 19. The microphone 19 is installed in the accommodation space 101 corresponding to the sound pickup hole 115 so as to pick up sounds from the external environment via the sound pickup hole 115.

[0101] Preferably, as shown in FIGS. 17 to 20 , the main body module 1 may be formed with at least two sound pickup holes 115 that communicate between the accommodation space 101 and the external environment. The main body module 1 may further include at least two microphones 19, which are installed at an interval within the accommodation space 101 and in one-to-one correspondence with the at least two sound pickup holes 115. For example, in the case of two microphones 19, one sound pickup hole 115 may penetrate the external housing 11 and be located on the outer periphery of the decorative cover 12. The other sound pickup hole 115 may penetrate both the external housing 11 and the decorative cover 12, i.e., the sound pickup hole 115 may be located within an area surrounded by the edge of the decorative cover 12. Accordingly, two microphones 19 may be installed in the accommodation space 101 in one-to-one correspondence with the two sound pickup holes 115.

[0102] The sound pickup range can be expanded and the sound pickup quality can be improved by providing at least two sound pickup holes 115. Furthermore, by providing one sound pickup hole 115 on the outside of the decorative cover 12 and the other sound pickup hole 115 on the edge of the decorative cover 12, the probability that both holes will be blocked when the decorative cover 12 is touched can be reduced, thereby reducing the impact on the sound pickup effect.

[0103] Preferably, taking two sound pickup holes 115 as an example, the distance between the two sound pickup holes 115 is equal to or greater than the dimension of the decorative cover 12 along the arrangement direction of the two microphones 19. By locating one sound pickup hole 115 outside the decorative cover 12, the other sound pickup hole 115 can be positioned as close to the edge of the decorative cover 12 as possible, thereby increasing the distance between the two sound pickup holes 115. This makes it less likely that the sound pickup hole 115 located outside the decorative cover 12 will be blocked when touching the touch positioning area 120 of the decorative cover 12, and also makes it less likely that the sound pickup hole 115 close to the edge of the decorative cover 12 will be blocked. This further reduces the probability of blocking both sound pickup holes 115 simultaneously when touching the decorative cover 12, thereby reducing the impact on the sound pickup effect.

[0104] 17, the touch positioning area 120 is preferably located between the two sound pickup holes 115. By installing it in this manner, the two sound pickup holes 115 are less likely to be blocked when the touch positioning area 120 is touched, reducing the impact on the sound pickup effect.

[0105] Preferably, the arrangement direction of the two sound pickup holes 115 intersects with the length direction X and width direction Z of the outer housing 11. The sound pickup holes 115 penetrating the decorative cover 12 (i.e., the sound pickup holes 115 within the area surrounded by the edge of the decorative cover 12) are closer to the connecting end 103 and closer to the edge of the decorative cover 12 farther from the ear hooks 2 in the width direction Z than the sound pickup holes 115 located on the outer periphery of the decorative cover 12. By locating the sound pickup hole 115 at the "bottom left," the sound pickup hole 115 penetrating the decorative cover 12 is closer to the user's mouth and the speaker 13, allowing it to clearly pick up the user's voice and the voice of the speaker 13, facilitating noise reduction processing and improving sound pickup quality in relation to the external environment. Meanwhile, the sound pickup hole 115 is closer to the edge of the decorative cover 12 farther from the ear hooks 2 in the width direction Z, reducing the likelihood of blocking the sound pickup hole 115 when touching the decorative cover 12.

[0106] Preferably, as shown in Figures 18 to 20, the main body module 1 may further include a sealing assembly 190, at least a portion of which is installed between the external housing 11 and the microphone 19, and which isolates the sound collection passage from the accommodation space 101 so that the sound collection passage is sealed from a portion of the space located outside the sound collection passage in the accommodation space 101, thereby reducing the impact on other electrical components in the accommodation space 101 of dust, water vapor, etc. that enter the sound collection passage through the sound collection hole 115.

[0107] Preferably, the main body module 1 may further include a fixing plate to which the microphone 19 is fixed. Preferably, the fixing plate may be the circuit board 15. Alternatively, in other embodiments, the fixing plate may be a plate-like structure other than the circuit board 15 or a part of the housing assembly 10, and may fix the microphone 19 and may also fix other components thereto.

[0108] 18 to 20, the fixing plate is accommodated in the accommodation space 101 and has a through hole 151 formed therein, and the microphone 19 is fixed to one side of the fixing plate and covers the through hole 151. At least a portion of the sealing assembly 190 is installed in the accommodation space 101 and abuts between the outer housing 11 and the side of the fixing plate away from the microphone 19, thereby communicating the through hole 151 with the sound pickup hole 115. By installing it in this manner, the mounting stability and sealing performance of the sealing assembly 190 can be improved.

[0109] The engagement structure between the sealing assembly 190 and the outer housing 11 or the like may vary to accommodate different mounting structures or microphones 19 in different positions.

[0110] In some embodiments, the sound pickup hole 115 that penetrates the outer housing 11 and is located on the outer periphery of the decorative cover 12, the structure of the sealing assembly 190, and related description examples are as follows.

[0111] 18 and 19, the microphone 19 may penetrate the outer housing 11 and be located on the outer periphery of the decorative cover 12. The sealing assembly 190 may include a sealing rubber ring 191a and a mesh assembly 192a, which are stacked together and are both installed in the accommodation space 101 and positioned between the fixing plate and the outer housing 11. The microphone 19 is positioned on the outer periphery of the decorative cover 12 and penetrates the outer housing 11. In this case, since the outer housing 11 has good integrity and unity, the sealing rubber ring 191a and the mesh assembly 192a are stacked and positioned between the fixed plate and the outer housing 11, thereby achieving a better sealing effect with the outer housing 11 having good unity. Meanwhile, stacking the sealing rubber ring 191a and the mesh assembly 192a makes the sealing assembly 190 thicker, thereby achieving a stronger seal between the outer housing 11 and the fixed plate. The mesh assembly 192a further reduces the intrusion of dust, impurities, etc. into the accommodation space 101, thereby further improving the sealing effect.

[0112] Preferably, the sealing rubber ring 191a is laminated on the fixed plate and is closer to the through-hole 151 than the mesh assembly 192a. The mesh assembly 192a is located between the sealing rubber ring 191a and the outer housing 11 and is closer to the sound pickup hole 115 than the sealing rubber ring 191a. By placing the mesh assembly 192a in front of the sealing rubber ring 191a (i.e., closer to the sound pickup hole 115) in this way, it is possible to reduce the intrusion and accumulation of dust, impurities, etc. into the sealing rubber ring 191a and further to prevent the intrusion of dust, impurities, water vapor, etc. into the accommodation space 101 at an early stage.

[0113] In some other embodiments, for the sound pickup hole 115 penetrating the outer housing 11 and the decorative cover 12, the structure of the sealing assembly 190 and related illustrative examples are as follows.

[0114] As shown in FIG. 20 , the microphone 19 may penetrate the outer housing 11 and the decorative cover 12, and the sealing assembly 190 may include a sealing rubber ring 191b and at least one mesh assembly 192b. The sealing rubber ring 191b is installed in the receiving space 101, between the outer housing 11 and the fixed plate, and directly abuts against the outer housing 11 and the fixed plate. The at least one mesh assembly 192b is installed between the outer housing 11 and the decorative cover 12. Because large errors are likely to occur in the engagement between the decorative cover 12 and the outer housing 11 and the engagement between the sealing assembly 190 and the fixed plate, connecting the sealing rubber ring 191b, which has a higher deformability, to the fixed plate can reduce the engagement errors between the decorative cover 12 and the outer housing 11 and the engagement between the sealing assembly 190 and the fixed plate, thereby ensuring the sealing effect of the circuit accessory.

[0115] Preferably, the number of at least one mesh assembly 192b may be two, one mesh assembly 192b is installed between the outer housing 11 and the decorative cover 12, and the other mesh assembly 192b is stacked in the accommodating space 101 with the sealing rubber ring 191b and is located between the outer housing 11 and the fixed plate.

[0116] By installing the mesh assembly 192b between the outer housing 11 and the decorative cover 12, it is possible to quickly reduce the intrusion of dust, impurities, water vapor, etc. into the accommodation space 101. Meanwhile, the mesh assembly 192b can seal the sound pickup hole 115 between the outer housing 11 and the decorative cover 12, reducing the risk of water vapor infiltrating from the sound pickup hole between the outer housing 11 and the decorative cover 12 and affecting the stability of the connection between them. By installing the sealing rubber ring 191b in the accommodation space 101 and sealing between the outer housing 11 and the fixing plate, the sealing effect is further improved, reducing the risk of water vapor, etc. infiltrating from the sound pickup hole 115, leaking into the accommodation space 101 and adversely affecting other electrical components inside.

[0117] The structure of the mesh assemblies 192a and 192b will now be described by way of example.

[0118] As shown in FIGS. 19 and 20 , the mesh assemblies 192a and 192b include annular double-sided tape 1921 and a mesh 1922. The annular double-sided tape 1921 is laminated on the mesh 1922, and the mesh 1922 is adhered thereto. Specifically, the mesh 1922 may be adhered to one side of the annular double-sided tape 1921, and the adjacent external housing 11 or decorative cover 12 may be connected to the other side. For example, the mesh 1922 may be adhered to one side of the annular double-sided tape 1921 with respect to the sound pickup hole 115 that penetrates the external housing 11 and the decorative cover 12, and the external housing 11 may be adhered to the other side. The mesh 1922 may be adhered to one side of the annular double-sided tape 1921 with respect to the sound pickup hole 115 that penetrates the external housing 11 and is located on the outer periphery of the decorative cover 12, and the external housing 11 may be adhered to the other side. The mesh 1922 may be placed opposite the sound pickup hole 115 and the through-hole 151 in order to effectively reduce the intrusion of impurities, dust, and the like into the accommodation space 101. Specifically, the annular double-sided tape 1921 surrounds the outer periphery of the sound pickup hole 115, and a portion of the mesh 1922 located in the middle of the annular double-sided tape 1921 is placed opposite the sound pickup hole 115.

[0119] Preferably, there are two layers of annular double-sided tape 1921 and one layer of mesh 1922, with mesh 1922 laminated and bonded between the two layers of annular double-sided tape 1921. By providing two layers of annular double-sided tape 1921, the adhesive strength of mesh 1922 can be increased, and mesh 1922 can be better fixed. In addition, the thickness can be increased to provide a stronger seal between outer housing 11 and decorative cover 12, or between outer housing 11 and sealing rubber rings 191a, 191b, improving the sealing effect.

[0120] Preferably, there are two layers of annular double-sided tape 1921 and two layers of mesh 1922, the two layers of annular double-sided tape 1921 are spaced apart, one layer of mesh 1922 is laminated and adhered between the two layers of annular double-sided tape 1921, and one layer of annular double-sided tape 1921 is laminated between the two layers of mesh 1922. By providing two layers of mesh 1922, the filtering and blocking effect can be further improved, and the two layers of mesh 1922 can be effectively fixed together. Furthermore, by increasing the thickness, a stronger seal can be formed between the outer housing 11 and the decorative cover 12, or between the outer housing 11 and the sealing rubber rings 191a, 191b, improving the sealing effect.

[0121] As shown in FIGS. 21 to 23 , as described above, the earphone 100 may include a housing assembly 10 and a speaker 13. Preferably, the earphone 100 may further include a sealant (not shown). The housing assembly 10 forms a first accommodating cavity 1011. The speaker 13 includes a frame 131 and a metal pad 132. As shown in FIGS. 24 and 25 , the frame 131 is installed within the first accommodating cavity 1011, and the metal pad 132 is installed on the side of the frame 131 facing the battery 14 to ensure electrical connection between the speaker 13 and other elements. The sealant seals the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011.

[0122] By sealing the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011 with a sealant, the speaker 13 can be sealed from the housing, thereby improving the sealing performance of the housing assembly 10 and reducing the risk of damage to electronic components due to water ingress.

[0123] During the sealant application process, the sealant needs to be applied around the frame 131 so as to continuously fill the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first receiving cavity 1011, thereby achieving a stable and reliable sealing effect between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first receiving cavity 1011. In the prior art, the metal pad 132 is often installed to extend from the frame 131 to the outside of the inner peripheral wall of the first receiving cavity 1011 in order to connect to a power source located outside the first receiving cavity 1011. When applying the sealant, the pad largely blocks the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first receiving cavity 1011, making it difficult to apply the sealant near the pad, which increases the risk of the sealant being interrupted by the pad and reduces sealing reliability.

[0124] The metal pad 132 is installed so as to be positioned on the side of the inner wall of the first accommodating cavity 1011 facing the battery 14, and the metal pad 132 is installed so as to maintain a certain distance from the inner wall of the first accommodating cavity 1011.This allows the gap between the outer wall of the frame 131 and the inner wall of the first accommodating cavity 1011 to be exposed to the outside during the sealant application process, making it easier to apply the sealant with the pad and advantageous for continuously filling the sealant between the outer wall of the frame 131 and the inner wall of the first accommodating cavity 1011, thereby achieving a stable and reliable sealing effect.

[0125] Furthermore, the conductive wire 133 may extend from the metal pad 132 to the inner wall of the first accommodating cavity 1011, and the diameter dimension of the conductive wire 133 is much smaller than that of the metal pad 132, so that the conductive wire 133 covers less of the gap between the outer wall of the frame 131 and the inner wall of the first accommodating cavity 1011, which is advantageous for applying the sealant and for achieving a stable and reliable sealing effect.

[0126] As shown in FIGS. 23 to 25, in some embodiments, the metal pads 132 are installed so as not to extend beyond the outer peripheral wall of the frame 131.

[0127] By installing it in this manner, the metal pad 132 does not block the gap between the outer wall of the frame 131 and the inner wall of the first receiving cavity 1011 during the sealant application process, which makes it easier to apply the sealant and is advantageous in achieving a stable and reliable sealing effect.

[0128] As shown in Figures 23, 24 and 26, in some embodiments, the metal pad 132 is installed so as to extend beyond the outer peripheral wall of the frame 131, and the protruding distance S1 of the metal pad 132 from the outer peripheral wall of the frame 131 is less than or equal to 1 / 2 of the gap dimension S2 between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011.

[0129] By installing the metal pad 132 in this manner, during the process of applying the sealant, the metal pad 132 does not completely block the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011, and the sealant can be applied using the metal pad 132. By setting the protrusion distance S1 of the metal pad 132 from the outer peripheral wall of the frame 131 to be equal to or less than half the gap dimension S2 between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011, the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011 can be partially exposed to the outside by the pad during the process of applying the sealant, and because the sealant has a certain fluidity during application, the fluidity of the sealant can be utilized to sufficiently fill the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011, thereby achieving a stable and reliable sealing effect. For example, the protruding distance S1 of the metal pad 132 from the outer peripheral wall of the frame 131 may be set to 0.2 to 0.3 times, or 0.4 to 0.5 times the gap dimension S2 between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011.

[0130] In some embodiments, as shown in FIGS. 23, 27 and 28, the first housing cavity 1011 has an open end 1014, the frame 131 is disposed in the first housing cavity 1011 from the open end 1014, the metal pad 132 is located on the side of the frame 131 facing the open end 1014, and the earphone 100 further includes a conductive wire 133, which is welded to the side of the metal pad 132 facing the open end 1014.

[0131] During the assembly process of the frame 131, the peripheral side of the frame 131 and the side away from the opening end 1014 of the frame 131 contact the inner wall of the first accommodating cavity 1011, the metal pad 132 is installed on the side facing the opening end 1014 of the frame 131, and the conductive wire 133 is welded to the side facing the opening end 1014 of the metal pad 132, thereby reducing interference between the metal pad 132 and the conductive wire 133 during the assembly process and improving assembly efficiency.

[0132] As shown in FIGS. 23 to 25, in some embodiments, the sealant is applied to the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011 from the open end 1014 side.

[0133] During the sealant application process, the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011 can be exposed to the outside from the open end 1014, making it easy to apply the sealant to the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011 from the outside through the open end 1014, and thereby the sealant enters the gap between the outer peripheral wall of the frame 131 and the inner peripheral wall of the first accommodating cavity 1011 from the open end 1014 side. This arrangement makes it easy to apply the sealant and improves assembly efficiency.

[0134] As shown in FIGS. 27 to 29, in some embodiments, the earphone 100 further includes a bracket 134, and the frame 131 has an annular surface 1311 and an assembly surface 1312 facing the open end 1014, the annular surface 1311 is arranged along the circumferential direction of the frame 131, and a first notch 1313 is arranged thereon, the assembly surface 1312 corresponds to the position of the first notch 1313 along the circumferential direction of the frame 131, the metal pad 132 is arranged on the assembly surface 1312, and the bracket 134 is supported by the annular surface 1311.

[0135] The assembly surface 1312 may be recessed at the first notch 1313 relative to the annular surface 1311 in a direction away from the open end 1314. The metal pad 132 usually has a certain protruding height. By positioning the annular surface 1311 so that the first notch 1313 is present, the metal pad 132 and the conductive wire 133 can be avoided when the bracket 134 is supported on the annular surface 1311, making it easier to assemble the bracket 134 and the frame 131 and improving assembly efficiency.

[0136] In some embodiments, as shown in Figures 28 and 29, a second notch 1341 is provided at one end of the bracket 134 facing the frame 131, and the second notch 1341 corresponds to the position of the assembly surface 1312 along the circumferential direction of the frame 131.

[0137] By providing the second notch 1341, it becomes easier to avoid the metal pad 132 and the conductive wire 133 when the bracket 134 is supported on the annular surface 1311, making it easier to assemble the bracket 134 and the frame 131 and improving assembly efficiency.

[0138] In some embodiments, as shown in FIGS. 22 to 24 , the housing assembly 10 further forms a second housing cavity 1012, the housing assembly 10 includes a partition wall 104 separating the first housing cavity 1011 and the second housing cavity 1012, the earphone 100 further includes a battery 14 installed in the second housing cavity 1012, and the metal pad 132 is located on the side of the frame 131 facing the partition wall 104.

[0139] A portion of the inner peripheral wall of the first accommodating cavity 1011 may be formed by the partition wall 104, and a portion of the sealant may seal the gap between the outer peripheral wall of the frame 131 and the partition wall 104. By providing the partition wall 104, the risk of water flowing into the second accommodating cavity 1012 from the side close to the sound emission hole 1013 of the speaker 13 can be reduced.

[0140] The battery 14 serves as a power source and can supply power to the speaker 13. Arranging the first accommodating cavity 1011 and the second accommodating cavity 1012 adjacent to each other is advantageous in simplifying the connection circuit between the battery 14 and the speaker 13. Arranging the metal pad 132 on the side of the frame 131 facing the partition wall 104 can shorten the distance between the battery 14 and the metal pad 132, which is advantageous in further simplifying the connection circuit between the battery 14 and the speaker 13. Furthermore, the metal pad 132 may be connected to the battery 14 via a conductor 133 so that the battery 14 supplies power to the speaker 13.

[0141] The above description is merely a partial example 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 any direct or indirect application to other related technical fields, is also included in the patent protection scope of the present application. [Explanation of symbols]

[0142] 100 earphones 10 Housing Assembly 101 Containment Space 102 1st end 103 2nd end 2 ear hooks 13 speakers 14 Batteries 104 Partition Wall

Claims

1. a housing assembly that defines an accommodating space, the housing assembly having a first direction and a second direction that is orthogonal to the first direction, and further having a first end and a second end that are oppositely disposed along the first direction; an ear hook connected to the housing assembly and positioned at least partially behind the user's ear when worn, the housing assembly being stacked on the front side of the user's ear along the second direction, and at least a portion of a first end of the housing assembly being inserted into the concha cavity of the user's ear; a speaker installed in the storage space and configured to provide sound to the user's ear; The earphone, characterized in that, when worn, in the first direction, an outer wall surface of the housing assembly facing the user's ear is installed in an arched shape away from the user's ear.

2. The earphone according to claim 1, characterized in that, in the first direction, the first end has a first reference point that is farthest from the second end, and the distance of the dome of the outer wall surface to the first reference point in the first direction is 14 mm to 20 mm.

3. The earphone according to claim 2, characterized in that in the second direction, the outer wall surface is adjacent to the second end and has a second reference point that is closest to the user's ear when the earphone is worn, and the distance from the second reference point to the first reference point in the first direction is 20 mm to 31 mm.

4. The earphone according to claim 3 , wherein the second reference point is set so as to abut against the skin of the face in front of the tragus of the user's ear when the earphone is worn.

5. The earphone according to claim 3 or 4, wherein the distance from the dome of the outer wall surface to the second reference point in the second direction is 1.3 mm to 2.2 mm.

6. The earphone according to claim 2, characterized in that in the second direction, the outer wall surface is adjacent to the first end and has a third reference point that is closest to the user's ear when the earphone is worn, and the distance from the third reference point to the first reference point in the first direction is 3 mm to 5 mm.

7. The earphone according to claim 6, wherein the distance of the dome of the outer wall surface to the third reference point in the second direction is 2 mm to 3 mm.

8. The earphone according to claim 1 , further comprising a battery, the speaker and the battery being spaced apart from each other in the first direction within the receiving space.

9. 9. The earphone according to claim 8, wherein a partition wall adjacent to the dome of the outer wall surface is provided on an inner wall surface of the housing assembly facing the user's ear, the speaker is located on the side of the partition wall facing the first end, and the battery is located on the side of the partition wall facing the second end.

10. The earphone according to claim 9, wherein the speaker has a first axis, the battery has a second axis, the first axis and the second axis each have a positive direction facing the user's ear, a projection of the first axis and a projection of the second axis are installed to intersect with each other within a reference plane defined by the first direction and the second direction, and an intersection angle between the positive directions of both is 11° to 14°.

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