earphones

Abstract

Earphone characterized in that the earphone comprises a core module and a hook structure connected to the core module, wherein the core module comprises a connecting end connected to the hook structure and a free end not connected to the hook structure, wherein the core module is in a worn state in front of an ear, with the free end of the core module projecting into the cavum conchae of the ear, where the hook structure, when worn, is at least partially located behind the ear, wherein the core module and the hook structure clamp an ear area corresponding to the cavum conchae from a front and back of the ear area, wherein the core module in the worn state has, in one thickness direction, an inner side facing the ear and an outer side facing away from the ear, as well as a connecting surface that connects the inner side with the outer side, wherein the connecting surface is at least partially located in the caveum conchae when worn and forms a first contact zone with the front of the ear area, where the hook structure, when worn, forms a second contact zone with the back of the ear area, wherein the second contact zone overlaps at least partially with the first contact zone in the thickness direction of the ear area, and where the thickness direction is defined as the direction in which the core module extends towards or away from the ear when worn.

Description

[0001] The present application claims priority over the international application filed on 31 August 2022 with application number PCT / CN 2022 / 116220 and entitled ‘Earphone’, the relevant content of which is incorporated by reference in the present application. Technical field

[0002] The present application relates to the technical field of electronic devices, in particular an earphone. State of the art

[0003] With the increasing popularity of electronic devices, they have become indispensable communication and entertainment tools in everyday life. People's demands on electronic devices have also steadily risen. As an example of electronic devices, earphones and similar products are widely used in daily life. They can be used in conjunction with devices such as mobile phones and computers to provide the user with a fantastic audio experience. Depending on their operating principle, earphones can generally be divided into air conduction earphones and bone conduction earphones. Depending on how the user wears the earphones, they can also be generally divided into the following categories: headset earphones, earhook earphones, and in-ear earphones. Based on the interaction between the earphones and the electronic devices, earphones can also be generally divided into wired and wireless earphones. Disclosure of the invention

[0004] An embodiment of the present application provides an earphone comprising a core module and a hook structure connected to the core module. The core module comprises a connecting end connected to the hook structure and a free end not connected to the hook structure. In the worn state, the core module is positioned in front of the ear. The free end projects into the concha of the ear. In the worn state, the hook structure is located at least partially behind the ear. The core module and the hook structure together clamp an ear region corresponding to the concha from both the front and back of the ear region.

[0005] In some embodiments, the core module, when worn, has an inner surface facing the ear and an outer surface facing away from the ear in a thickness direction, as well as a connecting surface that connects the inner surface to the outer surface, wherein the connecting surface is at least partially located in the cavum conchae when worn and forms a first contact zone with the front of the ear area, wherein the hook structure, when worn, forms a second contact zone with the back of the ear area, wherein the second contact zone overlaps at least partially with the first contact zone in the thickness direction of the ear area, and wherein the thickness direction is defined as the direction in which the core module, when worn, extends towards or away from the ear.

[0006] In some embodiments, the core module is provided to have a longitudinal direction and a lateral direction that are perpendicular to the thickness direction and orthogonal to each other, wherein the length of the core module in the longitudinal direction is greater than the width of the core module in the lateral direction, and wherein an orthogonal projection of the hook structure onto a reference plane perpendicular to the longitudinal direction partially overlaps with an orthogonal projection of the free end onto the reference plane.

[0007] In some embodiments, an overlap area, formed by the orthogonal projection of the hook structure onto the reference plane and the orthogonal projection of the free end onto the reference plane, is located in the thickness direction between the inside and the outside.

[0008] In some embodiments, the hook structure comprises an elastic metal wire connected to the core module and a battery housing connected to an end of the elastic metal wire remote from the core module, wherein a battery coupled to the core module is arranged in the battery housing, and wherein an orthogonal projection of the battery housing onto the reference plane partially overlaps with the orthogonal projection of the free end onto the reference plane.

[0009] In some embodiments, the core module is provided to have a thickness direction, a length direction, and a width direction that are orthogonal to each other, wherein the thickness direction is defined as the direction in which the core module extends towards or away from the ear in the worn state, wherein the length of the core module in the length direction is greater than the width of the core module in the width direction, wherein the core module in the worn state has, in the width direction, a top side facing away from the external auditory canal of the ear and a bottom side facing the external auditory canal, wherein an edge of an orthogonal projection of the hook structure onto a reference plane perpendicular to the thickness direction is divided on a side facing the core module into a first section and a second section, which form a continuous arc-shaped transition.wherein a dividing point between the first section and the second section is the point where the edge is furthest from the top surface in the lateral direction, and wherein the total degree of curvature of the hook structure in the first section is greater than the total degree of curvature of the hook structure in the second section.

[0010] In some embodiments, it is provided that in one extension direction of the hook structure, the length of the second section is greater than the length of the first section.

[0011] In some embodiments, the earphone is provided to have a first reference line segment parallel to the width direction, wherein the starting point of the first reference line segment is the point at which the first reference line segment intersects the top surface, and the endpoint of the first reference line segment is the dividing point, and wherein the length of the first reference line segment is between 13 mm and 20 mm.

[0012] In some embodiments, a second reference line segment, passing through a point at the quarter of the first reference line segment and parallel to the longitudinal direction, intersects the first section at a first intersection point and the second section at a second intersection point, wherein the distance between the first intersection point and the starting point of the first reference line segment is between 9 mm and 15 mm and the distance between the second intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm; that a third reference line segment, passing through a point on one half of the first reference line segment and parallel to the longitudinal direction, intersects the first section at a third intersection point and the second section at a fourth intersection point, wherein the distance between the third intersection point and the starting point of the first reference line segment is between 11 mm and 18 mm and the distance between the fourth intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm; and that a fourth reference line segment, passing through a point at three-quarters of the length of the first reference line segment and parallel to the longitudinal direction, intersects the first section at a fifth intersection point and the second section at a sixth intersection point, wherein the distance between the fifth intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm and the distance between the sixth intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm.

[0013] In some embodiments, the core module is provided to have a back side connecting the top side to the bottom side, wherein the back side in the worn state is located at an end pointing towards the back of the head in the longitudinal direction and at least partially in the cavum conchae, wherein a fifth reference line segment is present with the shortest distance between the second section and the back side in the longitudinal direction, and wherein the length of the fifth reference line segment is between 2 mm and 3 mm.

[0014] In some embodiments, it is provided that the starting point of the fifth reference line segment is the point at which the fifth reference line segment intersects the back side, and the endpoint of the fifth reference line segment is the point at which the fifth reference line segment intersects the second section, wherein The earphone has a first reference line segment parallel to the width direction, wherein the starting point of the first reference line segment is the point where the first reference line segment intersects the top surface, and the endpoint of the first reference line segment is the dividing point, wherein an orthogonal projection of the starting point of the first reference line segment in the length direction intersects the second section at a seventh intersection point, wherein an orthogonal projection of an intersection point of an opposite extension line of the first reference line segment with the underside in the length direction intersects the second section at an eighth intersection point, wherein the distance between the seventh intersection point and the starting point of the fifth reference line segment is between 5 mm and 9 mm, and wherein the distance between the eighth intersection point and the starting point of the fifth reference line segment is between 5 mm and 9 mm.

[0015] In some embodiments, the core module is provided to have a thickness direction, a length direction and a width direction that are orthogonal to each other, wherein the thickness direction is defined as the direction in which the core module extends towards or away from the ear in the worn state, wherein the length of the core module in the length direction is greater than the width of the core module in the width direction, wherein, in the worn state and when viewed in the direction of the coronal axis of the human body, the connecting end is closer to the top of the head than the free end, and wherein the angle between the length direction and the direction of the sagittal axis of the human body is between 15° and 60°.

[0016] In some embodiments, the core module comprises a core housing connected to the hook structure and a loudspeaker arranged in the core housing, wherein a sound outlet opening is provided on an inner surface of the core housing facing the ear in the worn state, through which the sound waves generated by the loudspeaker are emitted, wherein the core module, in the worn state, together with the cavum conchae, forms an auxiliary chamber communicating with the external auditory canal of the ear, and wherein the sound outlet opening is located at least partially in the auxiliary chamber.

[0017] In some embodiments, the auxiliary chamber is provided to be partially open.

[0018] In some embodiments, the core module includes a flexible insert block arranged outside the core housing, wherein the hardness of the flexible insert block is less than the hardness of the core housing, wherein the flexible insert block covers a local area of ​​the core housing corresponding to the free end, and wherein the flexible insert block acts as a buffer when the core module collides with the ear area.

[0019] In some embodiments, the core module is provided to have a thickness direction, a length direction, and a width direction that are orthogonal to each other, wherein the thickness direction is defined as the direction in which the core module extends towards or away from the ear when worn, wherein the length of the core module in the length direction is greater than the width of the core module in the width direction, wherein, when worn, the core module has, in the width direction, a top facing away from the external auditory canal and a bottom facing towards the external auditory canal, as well as a back side connecting the top side to the bottom side, wherein, when worn, the back side faces the back of the head in the length direction and is located in the cavum conchae; and wherein the flexible insert block continuously covers at least partially areas of the core housing corresponding to the back side, the top side, and the bottom side.

[0020] In some embodiments, the flexible insert block is arranged in a U-shape when viewed in the thickness direction.

[0021] In some embodiments, it is provided that a part of the flexible insert block, corresponding to the underside, abuts against the antitragus of the ear.

[0022] The present application has the following advantageous effects: Compared to the prior art, the free end of the core module in the earphone of the present application can project into the concha when worn. Furthermore, the core module and the hook structure can be arranged to jointly clamp an ear area corresponding to the concha from the front and back of the aforementioned ear area, thereby increasing the resistance to the earphone falling out of the ear and thus improving the stability of the earphone when worn. Brief description of the characters

[0023] To clarify the technical solutions in the embodiments of the application, the drawings required for describing these embodiments are briefly presented below. Obviously, the drawings in the following description represent only some embodiments of the application. A person skilled in the art can derive further drawings from these drawings without inventive step. Fig. Figure 1 shows a schematic representation of a user's anterior ear contour according to the present application; Fig. Figure 2 shows a schematic structural representation of an earphone in an embodiment of the present application; Fig. Figure 3 shows a schematic representation of the earphone in an embodiment of the present application in a worn state; Fig. Figure 4 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 5 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 6 shows a comparison diagram of frequency response curves determined in the same listening position when a core module of the earphone in an embodiment of the present application is located in different positions on the ear; Fig. Figure 7 shows a cutaway schematic structural representation of the earphone. Fig. 2 along the cutting direction A1-A1 in an exemplary embodiment; Fig. Figure 8 shows a cutaway schematic structural representation of the earphone made of Fig. 2 along the cutting direction A2-A2 in an exemplary embodiment; Fig. Figure 9 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 10 shows a schematic structural representation of a core housing in an embodiment of the present application; Fig. Figure 11 shows a schematic structural representation of the core housing in an embodiment of the present application; Fig. Figure 12 shows a schematic structural representation of a support in an embodiment of the present application; Fig. Figure 13 shows an enlarged schematic structural representation of the earphone. Fig. 8 in area B1 in an exemplary embodiment; Fig. Figure 14 shows an enlarged schematic structural representation of the earphone. Fig. 8 in area B2 in an exemplary embodiment; Fig. Figure 15 shows a schematic structural representation of a hook structure in an embodiment of the present application; Fig. Figure 16 shows a cutaway schematic structural representation of the hook structure. Fig. 15 along the cutting direction A3-A3 in an exemplary embodiment; Fig. Figure 17 shows a cutaway schematic structural representation of the hook structure. Fig. 15 along another cutting direction perpendicular to the cutting direction A3-A3 in an embodiment; Fig. Figure 18 shows an exploded schematic structural representation of the hook structure from Fig. 15 in one embodiment; Fig. Figure 19 shows a schematic structural representation of the earphone in an embodiment of the present application in a main view; Fig. Figure 20 shows a schematic structural representation of the earphone. Fig. 19 in a view from the left; Fig. Figure 21 shows a schematic representation of the earphone made of Fig. 19 in the worn state, viewed from a front angle in the coronal axis of the human body; Fig. Figure 22 shows a schematic representation of the earphone made of Fig. 19 in the worn state, viewed from a rear perspective in the sagittal axis of the human body; Fig. Figure 23 shows a schematic structural representation of the earphone in an embodiment of the present application in a main view; Fig. Figure 24 shows a schematic structural representation of a side of a retaining part facing the ear. Fig. 23; Fig. Figure 25 shows a schematic representation of the earphone made of Fig. 23 in the worn state, viewed from the front in the coronal axis of the human body; Fig. Figure 26 shows a schematic structural representation of the earphone in an embodiment of the present application in a main view; Fig. Figure 27 shows a schematic structural representation of a side of a retaining part facing the ear. Fig. 26; and Fig. Figure 28 shows a schematic representation of the earphone made of Fig. 26 in the worn state, viewed from the front in the coronal axis of the human body. Detailed descriptions

[0024] The present application is described in further detail in connection with the drawings and the embodiments. It should be noted in particular that the following embodiments are intended only to illustrate the present application, without limiting its scope. Furthermore, the following embodiments represent only some, not all, embodiments of the present application.

[0025] All other embodiments that are accessible to a person skilled in the art without inventive activity fall within the scope of protection of the application.

[0026] The mention of "exemplarities" in this application means that the specific features, structures, or properties described in connection with these exemplary embodiments may be included in at least one exemplary embodiment of this application. What the person skilled in the art understands explicitly and implicitly is that the exemplary embodiments described in this application can be combined with further exemplary embodiments.

[0027] Combined with Fig. It is evident from Figure 1 that a user's ear 100 may comprise an external auditory canal 101, a cavum conchae 102, a cymba conchae 103, a fossa triangularis 104, an antihelix 105, a scapha 106, a helix 107, an antitragus 108, and other physiological body parts. Although the external auditory canal 101 has a certain depth and extends to the eardrum, for the sake of simplicity of description and in conjunction with Fig. 1. Unless otherwise specified in the present application, the external auditory canal 101 is specifically designated as the entrance furthest from the tympanic membrane (i.e., the ear opening). Furthermore, it is provided that the physiological body parts such as the cavum conchae 102, the cymba conchae 103, and the fossa triangularis 104 have a certain volume and depth, and that the cavum conchae 102 and the external auditory canal 101 are in direct communication, i.e., it can simply be considered that the aforementioned ear opening lies below the cavum conchae 102.

[0028] Furthermore, it is provided that a tragus 109 is also present peripherally at the external auditory canal of the ear 100, which has a specific depth and volume in three-dimensional space with respect to sections such as the cavum conchae 102, the cymba conchae 103, and the fossa triangularis 104, and the like. That is to say, these sections are each recessed in a direction towards the user's head and the posterior side of the ear, while the tragus 109 projects in a direction away from the user's head and towards the anterior side of the ear. The expression "in front of the ear" as described in this application refers to the expression "behind the ear," the former being a side of the ear facing away from the head (for example, in the Fig. 1) and the latter refers to the side of the ear facing the head. Both refer to the user's ear.

[0029] Furthermore, it is anticipated that different users may exhibit individual variations, leading to different shapes, sizes, and other dimensions of the ears. To simplify the description and reduce (or even eliminate) individual variations between different users, a simulator with the head and (left and right) ear, such as the GRAS 45BC KEMAR, can be manufactured based on the standards ANSI: S3.36, S3.25 and IEC: 60318-7. Therefore, expressions such as "the user wears the earphone," "the earphone is in the worn state," and "in the worn state" in this application can refer to the earphone described in this application being worn on the ear of the aforementioned simulator.Naturally, due to individual variations among different users, there may be some differences between how different users wear the earphone and how the earphone is worn on the ear of the aforementioned simulator; however, these differences should be accepted.

[0030] It should be noted that in medicine and anatomy, three fundamental planes of section can be defined for the human body: the sagittal plane, the coronal plane, and the horizontal plane. Three fundamental axes can also be defined: the sagittal axis, the coronal axis, and the vertical axis. The sagittal plane is a plane of section perpendicular to the ground, running in the front-to-back direction of the body, dividing the human body into a left and a right part. The coronal plane is a plane of section perpendicular to the ground, running in the left-to-right direction of the body, dividing the human body into an anterior and a posterior part.The horizontal plane refers to a cross-sectional plane parallel to the ground along the top-bottom direction of the body, dividing the human body into an upper and a lower part. Accordingly, the sagittal axis refers to an axis running in the front-back direction of the body and perpendicular to the coronal plane, the coronal axis to an axis running in the left-right direction of the body and perpendicular to the sagittal plane, and the vertical axis to an axis running in the top-bottom direction of the body and perpendicular to the horizontal plane. Furthermore, the expression "in front of the ear" as described in this application refers to the expression "behind the ear," the former referring to a side of the ear facing away from the head and the latter to a side of the ear facing the head. Both refer to the user's ear.When viewing the ear of the aforementioned simulator in the direction of the coronal axis of the human body, the following results: Fig. 1. Schematic representation of the anterior ear contour. Based on this and in conjunction with Fig. Three directions, namely X, Y, and Z, can each be considered simply as the coronal axis of the human body, the sagittal axis of the human body, and the vertical axis of the human body. Three planes, namely XY, XZ, and YZ, can each be considered simply as the horizontal plane of the human body, the coronal axis of the human body, and the sagittal plane of the human body.

[0031] For example, in connection with the Fig. 2, Fig. 3, Fig. 4 to Fig. As can be seen in Figure 5, the earphone 10 can comprise a core module 11 and a hook structure 12 connected to the core module 11, wherein the core module 11 is located in front of the ear when worn and the hook structure 12 is located at least partially behind the ear when worn, so that the earphone 10 hangs from the ear when worn. The core module 11 can have a connecting end CE that is connected to the hook structure 12 and a free end FE that is not connected to the hook structure 12. Furthermore, it is provided that the core module 11 can be arranged such that it does not block the external auditory canal when worn, so that the earphone 10 is designed as an "open-ear earphone". Due to individual variations among different users when wearing the earphone 10, the core module 11 could partially cover the external auditory canal without blocking it.

[0032] To improve the stability of the earphone 10 when worn, one of the following options, or a combination thereof, can be used for the earphone 10. First: The hook structure 12 is designed, at least partially, as a profiled structure that adapts to at least one of the backs of the ear and the head in order to increase the contact area of ​​the hook structure 12 with the ear and / or the head, thereby increasing the resistance to the earphone 10 falling out of the ear. Second: The hook structure 12 is designed, at least partially, as an elastic structure so that it exhibits a certain degree of deformability when worn, in order to increase the positive pressure exerted by the hook structure 12 on the ear and / or the head, thereby increasing the resistance to the earphone 10 falling out of the ear.Third: The hook structure 12 is at least partially arranged so that, when worn, it presses against the head, thereby generating a counterforce that presses the ear. This presses the core module 11 against the front of the ear to increase resistance to the earphone 10 falling out of the ear. Fourth: The core module 11 and the hook structure 12 are arranged so that, when worn, they clamp physiological body parts such as the antihelix and the conchae on the front and back of the ear to increase resistance to the earphone 10 falling out of the ear. Fifth: The core module 11 or an associated auxiliary structure is arranged such that it / they protrude at least partially into physiological body parts such as the cavum conchae, the cymba conchae, the fossa triangularis or the scapha in order to increase the resistance against the earphone 10 falling out of the ear.

[0033] For example, in connection with Fig. Figure 3 shows that, when worn, the free end FE of the core module 11 can protrude into the concha. The core module 11 and the hook structure 12 can be arranged to jointly clamp an ear area corresponding to the concha, both front and back of the aforementioned ear area, in order to increase the resistance against the earphone 10 falling out of the ear and thus improve the stability of the earphone 10 when worn. For example, the free end FE is pressed into the concha along a thickness direction X1. Alternatively, the free end FE rests against the concha along a length direction Y1 and a width direction Z.

[0034] It should be noted that, in the worn state, in addition to the free end FE of the core module 11 projecting into the concha, it is also possible for an orthogonal projection of the free end to fall onto the antihelix, or for this orthogonal projection to fall onto the left or right side of the head and lie on the sagittal axis of the human body in front of the ear. In other words, the hook structure 12 can support the core module 11 so that it can be worn at a location such as the concha, the antihelix, or the front of the ear.

[0035] For example, in connection with the Fig. 3 and Fig. As can be seen in Figure 4, the core module 11, when worn, can have an inner surface IS facing the ear, an outer surface OS facing away from the ear, and a connecting surface linking the inner surface IS to the outer surface OS in the thickness direction X1. The thickness direction X1 can be defined as the direction in which the core module 11 extends towards or away from the ear when worn. Furthermore, it is provided that the aforementioned connecting surface is located at least partially within the conchal cavity when worn and forms a first contact zone with the front of the aforementioned ear area. The hook structure 12 forms a second contact zone with the back of the ear area when worn, and the second contact zone overlaps at least partially with the first contact zone in the thickness direction of the ear area.This allows not only the core module 11 and the hook structure 12 to clamp the ear from the front and back of the ear, but the clamping force formed acts mainly as a pressure force, which contributes to improving the stability and comfort of the earphone 10 when worn.

[0036] It should be noted that, when worn and viewed along the coronal axis, the core module 11 can be circular, elliptical, square with rounded corners, rectangular with rounded corners, etc. If the core module 11 is circular, elliptical, or otherwise shaped, the connecting surface described above can refer to a curved side of the core module 11. If, however, the core module 11 is square with rounded corners, rectangular with rounded corners, or otherwise shaped, the connecting surface described above can include a bottom surface LS, a top surface US, and a back surface RS, as described below. Furthermore, the core module 11 can have a longitudinal direction Y1 and a vertical direction Z1, which are perpendicular to the thickness direction X1 and orthogonal to each other.The longitudinal direction Y1 can be defined as the direction in which the core module 11 extends towards or away from the back of the user's head when worn. The vertical direction Z1 can be defined as the direction in which the core module 11 extends towards or away from the top of the user's head when worn. For the sake of simplicity, this embodiment is described using the example of a rectangular core module 11 with rounded corners. The length of the core module 11 in the longitudinal direction Y1 can be greater than the width of the core module 11 in the lateral direction Z.

[0037] For example, in connection with the Fig. 2, Fig. 3 and Fig. As can be seen in Figure 5, when worn and viewed along the coronal axis of the human body, the connecting end CE is closer to the top of the head than the free end FE, in order to facilitate the insertion of the free end FE into the conchal cavity. Therefore, the angle between the longitudinal direction Y1 and the direction of the sagittal axis of the human body can be between 15° and 60°. If the aforementioned angle is too small, the free end FE may not be able to insert into the conchal cavity, and the sound outlet 111a on the core module 11 will be too far from the external auditory canal. Conversely, if the aforementioned angle is too large, the free end FE may not be able to insert into the conchal cavity, and the external auditory canal will be blocked by the core module 11.In other words, this allows both the free end FE to protrude into the cavum conchae and an adequate distance between the sound outlet opening 111a on the core module 11 and the external auditory canal, so that the user can hear more of the sound waves generated by the core module 11 without blocking the external auditory canal.

[0038] For example, in connection with Fig. 4 shows that an orthogonal projection of the hook structure 12 onto a reference plane perpendicular to the length direction Y1 (e.g., the XZ plane in Fig. 4) with an orthogonal projection of the free end FE onto the same reference plane, partially overlapping. An overlap area, formed by the orthogonal projection of the hook structure 12 onto the aforementioned reference plane and the orthogonal projection of the free end FE onto the same reference plane, lies in the thickness direction X1 between the inner surface IS and the outer surface OS. This allows not only the core module 11 and the hook structure 12 to jointly clamp the ear from the front and back, but also ensures that the resulting clamping force acts primarily as a compressive force, thus improving the stability and comfort of the earphone 10 when worn.

[0039] Furthermore, it is planned that in connection with the Fig. 2, Fig. 4, Fig. 5 and Fig. 9 The hook structure 12 may comprise an elastic metal wire 121 connected to the core module 11 and a battery housing 123 connected to an end of the elastic metal wire 121 remote from the core module 11, wherein a battery 14 coupled to the core module 11 is arranged in the battery housing 123, and wherein an orthogonal projection of the battery housing 123 onto the aforementioned reference plane partially overlaps with the orthogonal projection of the free end FE onto the same reference plane. This allows the battery housing 123 to support the ear from the back of the ear when the free end FE abuts the cavum conchae, thus improving the stability of the earphone 10 when worn.The battery housing 123 can comprise a lid 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the lid 1231, the battery compartment 1232 together with the lid 1231 forming a chamber structure for receiving the battery 14.

[0040] For example, in connection with Fig. As can be seen in Figure 5, the core module 11, when worn, can have, in the width direction Z, an upper surface US facing away from the external auditory canal, an underside LS facing the external auditory canal, and a back surface RS connecting the upper surface US with the underside LS, wherein the back surface RS, when worn, is located at one end pointing towards the back of the head in the length direction Y1 and is at least partially within the conchae. An edge of an orthogonal projection of the hook structure 12 onto a reference plane perpendicular to the thickness direction X1 (e.g., the YZ plane in Figure 5) can be defined. Fig. 5) on a side facing the core module 11, the surface is divided into a first section S1 and a second section S2, which have a continuous arc-shaped transition. A dividing point DP between the first section S1 and the second section S2 is the point on the aforementioned edge that is furthest from the top surface US in the lateral direction Z. Furthermore, the total degree of curvature of the hook structure 12 in the first section S1 is greater than the total degree of curvature of the hook structure 12 in the second section S2. This allows both the free end FE to project into the cavum conchae and the hook structure 12 to interact with the core module 11 to provide an adequate clamping force.

[0041] It should be noted that the aforementioned total degree of curvature can be used to qualitatively describe the degrees of curvature of different sections of the hook structure 12, where the radius of curvature of each section can be constant or continuously variable. Therefore, the radius of curvature of at least one point in the first section S1 is smaller than the radius of curvature of any point in the second section S2. Furthermore, it is provided that the aforementioned total degree of curvature can also be characterized quantitatively using an average radius of curvature; that is, first, the radius of curvature of N points in each section is determined, and then an average value is calculated.

[0042] Furthermore, it is provided that, in the extension direction of the hook structure 12, the second section S2 can be longer than the first section S1 in order to facilitate the clamping of the ear by the hook structure 12 together with the core module 11 and to increase the contact area between the hook structure 12 and the user's skin. This contributes to improving the stability of the earphone 10 when worn.

[0043] In some embodiments, the earphone 10 has a first reference line segment RL1 parallel to the width direction Z, wherein the starting point of the first reference line segment RL1 is the point where the first reference line segment RL1 intersects the top surface US, and wherein the endpoint of the first reference line segment RL1 is the separation point DP. A second reference line segment RL2, a third reference line segment RL3, and a fourth reference line segment RL4, which are mentioned below, are successively located further and further away from the starting point of the first reference line segment RL1 in the width direction Z. Furthermore, the length of the first reference line segment RL1 can be between 13 mm and 20 mm.If the length of the first reference line segment RL1 is too short, the free end FE may not be able to protrude into the concha, and the sound outlet 111a on the core module 11 may be too far from the external auditory canal. Conversely, if the length of the first reference line segment RL1 is too long, the free end FE may not be able to protrude into the concha, and the external auditory canal may be blocked by the core module 11. In other words, this design ensures both that the free end FE can protrude into the concha and that there is an adequate distance between the sound outlet 111a on the core module 11 and the external auditory canal, allowing the user to hear more of the sound waves generated by the core module 11 without obstructing the external auditory canal.

[0044] Furthermore, it is provided that the second reference line segment RL2, which passes through a point at the quarter of the first reference line segment RL1 and parallel to the longitudinal direction Y1, intersects the first section S1 at a first intersection point P1 and the second section S2 at a second intersection point P2, wherein the distance between the first intersection point P1 and the starting point of the first reference line segment RL1 can be between 9 mm and 15 mm and the distance between the second intersection point P2 and the starting point of the first reference line segment RL1 can be between 12 mm and 19 mm;that the third reference line segment RL3, which passes through a point on one half of the first reference line segment RL1 and parallel to the longitudinal direction Y1, intersects the first section S1 at a third intersection point P3 and the second section S2 at a fourth intersection point P4, wherein the distance between the third intersection point P3 and the starting point of the first reference line segment RL1 can be between 11 mm and 18 mm and the distance between the fourth intersection point P4 and the starting point of the first reference line segment RL1 can be between 12 mm and 19 mm;and that the fourth reference line segment RL4, passing through a point at three-quarters of the first reference line segment RL1 and parallel to the longitudinal direction Y1, intersects the first section S1 at a fifth intersection point P5 and the second section S2 at a sixth intersection point P6, the distance between the fifth intersection point P5 and the starting point of the first reference line segment RL1 being between 12 mm and 19 mm, and the distance between the sixth intersection point P6 and the starting point of the first reference line segment RL1 being between 12 mm and 19 mm. Thus, the hook structure 12 adapts better to the ear when the free end FE projects into the cavum conchae and there is an adequate distance between the sound outlet opening 111a on the core module 11 and the external auditory canal.

[0045] In some embodiments, a fifth reference line segment RL5 is provided, located at the shortest distance between the second section S2 and the rear surface RS in the longitudinal direction Y1. The length of the fifth reference line segment RL5 can be between 2 mm and 3 mm. If the length of the fifth reference line segment RL5 is too short, the core module 11, together with the hook structure 12, may exert excessive clamping force on the ear, resulting in discomfort. Conversely, if the length of the fifth reference line segment RL5 is too long, the core module 11, together with the hook structure 12, may exert insufficient clamping force on the ear, resulting in instability. In other words, this design ensures both the stability and comfort of the earphone 10 when worn.

[0046] Furthermore, the fifth reference line segment RL5 is defined as follows: The starting point of the fifth reference line segment RL5 is defined as the point where it intersects the back surface RS, and the endpoint of the fifth reference line segment RL5 is defined as the point where it intersects the second section S2. An orthogonal projection of an intersection point of the first reference line segment RL1 with the top surface US in the longitudinal direction Y1 intersects the second section S2 at a seventh intersection point P7. An orthogonal projection of an intersection point of an extension line of the first reference line segment RL1 with the bottom surface LS in the longitudinal direction Y1 intersects the second section S2 at an eighth intersection point P8. The distance between the seventh intersection point P7 and the starting point of the fifth reference line segment RL5 can be between 5 mm and 9 mm.The distance between the eighth intersection point P8 and the starting point of the fifth reference line segment RL5 can be between 5 mm and 9 mm. Thus, the hook structure 12 adapts better to the ear when both the stability and comfort of the earphone 10 are taken into account when worn.

[0047] For example, in connection with the Fig. 7, Fig. 8 and Fig. As can be seen in Figure 5, the core module 11 can comprise a core housing 111 connected to the hook structure 12 and a loudspeaker 112 arranged within the core housing 111. The sound outlet 111a is located on an inner surface of the core housing 111 that faces the ear when worn (e.g., the aforementioned inner surface IS). The sound waves generated by the loudspeaker 112 are emitted through the sound outlet 111a to facilitate transmission into the external auditory canal. It should be noted that the sound outlet 111a can also be located either on a side of the core housing 111 corresponding to the bottom surface LS or at a corner between the aforementioned inner surface and the bottom surface LS.Furthermore, it is provided that the loudspeaker 112 can comprise a magnetic circuit system, a voice coil projecting into the magnetic circuit system and a diaphragm connected to the voice coil, wherein a magnetic field generated by the energized voice coil interacts with a magnetic field formed by the magnetic circuit system, causing the diaphragm to vibrate mechanically, which propagates through a medium such as air and generates a sound.

[0048] Furthermore, it is planned that in connection with the Fig. 7, Fig. 8 to Fig. The earphone 10 can comprise a main control circuit board 13 arranged in the core housing 111 and a battery 14 arranged at an end of the hook structure 12 furthest from the core module 11. The battery 14 and the loudspeaker 112 are each coupled to the main control circuit board 13 to allow the battery 14 to power the loudspeaker 112 under the control of the main control circuit board 13. Of course, both the battery 14 and the loudspeaker 112 can be arranged in the core housing 111. Furthermore, the battery 14 can be located closer to the connection end CE and the loudspeaker 112 closer to the free end FE.

[0049] For example, in connection with the Fig. 3 and Fig. It is evident that, due to the certain volume and depth of the concha, a certain distance can exist between the inner surface IS of the core housing 111 and the concha after the free end FE projects into the concha. In other words, when worn, the core module 11, together with the concha, can form an auxiliary chamber communicating with the external auditory canal, with the sound outlet 111a being located at least partially within this auxiliary chamber. Thus, when worn, the sound waves generated by the loudspeaker 112 and emitted through the sound outlet 111a are limited by this auxiliary chamber; that is, the auxiliary chamber can focus the sound waves.This allows more sound waves to be transmitted into the external auditory canal, thus improving the volume and sound quality of the sound heard by the user in the near field, which contributes to improving the acoustic performance of the earphone 10. Furthermore, the aforementioned auxiliary chamber is designed to be partially open, as the core module 11 can be positioned so that it does not block the external auditory canal when worn. This allows a large portion of the sound waves generated by the loudspeaker 112 and emitted through the sound outlet 111a to be transmitted into the external auditory canal, while a small portion of the sound waves is transmitted through a gap between the core module 11 and the ear (e.g., a portion of the cavum conchae not covered by the core module 11) to the earphone 10 and the outside of the ear, resulting in an initial loss of sound in the far field.Furthermore, the core module 11 is usually provided with an acoustic opening (e.g., a pressure relief opening 111c mentioned later), wherein the sound waves emitted through this acoustic opening usually form a second sound loss in the far field, and wherein the phases of the aforementioned first sound loss and the aforementioned second sound loss are (almost) out of phase, so that the two can cancel each other out of phase in the far field, which contributes to reducing the sound loss of the earphone 10 in the far field.

[0050] Furthermore, the earphone 10 is provided to include an adjustment mechanism for connecting the core module 11 to the hook structure 12, whereby different users can adjust the relative position of the core module 11 on the ear by means of the adjustment mechanism while wearing the earphone, in order to position the core module 11 appropriately so that the core module 11, together with the cavum conchae, forms the aforementioned auxiliary chamber. Moreover, thanks to the presence of the adjustment mechanism, the user can also adjust the earphone 10 so that it is worn in a more stable and comfortable position.

[0051] For example, in connection with Fig. As can be seen in Figure 6, the earphone 10 is first worn on the aforementioned simulator, then the position of the core module 11 is adjusted on the ear of the aforementioned simulator, and subsequently a frequency response curve of the earphone 10 is determined using a detector (e.g., a microphone) in the outer ear canal (e.g., at the position of the eardrum, i.e., the hearing position) of the simulator, in order to simulate the effect of hearing after the user has worn the earphone 10. The aforementioned frequency response curve can be used to characterize a relationship between the amplitude of the oscillation and the frequency. The abscissa of the aforementioned frequency response curve can represent the frequency in Hz. The ordinate of the aforementioned frequency response curve can represent the amplitude of the oscillation in dB. Fig. 6. A curve 6_1 can represent the frequency response curve of the core module 11 in the supported state without the formation of the aforementioned auxiliary chamber with the caveum conchae, and a curve 6_2 can represent the frequency response curve of the core module 11 in the supported state with the formation of the aforementioned auxiliary chamber with the caveum conchae. Based on this, the comparison diagram of the frequency response curves in Fig. 6 directly and unambiguously yields the following: Curve 6_2 lies overall above curve 6_1, i.e., it is more advantageous for improving the acoustic effect of the earphone 10 if the core module 11, when worn, forms the aforementioned auxiliary chamber with the caveum conchae than if the core module 11, when worn, does not form the aforementioned auxiliary chamber with the caveum conchae.

[0052] For example, in connection with the Fig. 7, Fig. 9 and Fig. It is evident from Figure 11 that the core module 11 can comprise a flexible insert block 1131 arranged outside the core housing 111, wherein the hardness of the flexible insert block 1131 is less than the hardness of the core housing 111. The core housing 111 can be a plastic part. The flexible insert block 1131 can be made of silicone, rubber, or other materials and can be formed by injection molding at a predetermined area of ​​the core housing 111. Furthermore, it is provided that the flexible insert block 1131 can at least partially cover an area of ​​the core housing 111 corresponding to the free end FE, so that the core module 11 abuts the cavity at least partially through the flexible insert block 1131. In other words, a part of the core housing 111 that projects into and is in contact with the cavity can be covered by the flexible insert block 1131.The flexible insert block 1131 thus acts as a buffer between the core housing 111 and the ear (for example, the aforementioned ear area) to reduce the pressure of the earphone 10 on the ear when the core module 11 presses against the concha, for example, when the core module 11 and the hook structure 12 are arranged to jointly clamp an ear area corresponding to the concha of the ear from the front and back of the aforementioned ear area. This helps to improve the comfort of the earphone 10 when worn.

[0053] For example, the flexible insert block 1131 can continuously cover at least partially areas of the core housing 111 corresponding to the rear RS, the top US, and the bottom LS. For instance, the area of ​​the core housing 111 corresponding to the rear RS is covered by the flexible insert block 1131 to more than 90%, and the areas of the core housing 111 corresponding to the top US and the bottom LS are each covered by the flexible insert block 1131 to approximately 30%. This takes into account both the comfort of the earphone 10 when worn and the requirements for the arrangement of components such as the loudspeaker 112 within the core housing 111.

[0054] In some embodiments, it is provided that when viewed in the thickness direction X1, the flexible insert block 1131 can be arranged in a U-shape.

[0055] In some embodiments, a portion of the flexible insert block 1131 corresponding to the underside LS can abut against the antitragus. The thickness of that portion of the flexible insert block 1131 corresponding to the backside RS can be less than the thicknesses of those portions of the flexible insert block 1131 corresponding to the topside US and the underside LS, respectively, in order to ensure good comfort even if the core module 11 is impacted against an uneven area in the concha.

[0056] For example, in connection with the Fig. 7 and Fig. Figure 8 shows that the core housing 111 can comprise an inner core housing 1111 and an outer core housing 1112, which are interlocked in the thickness direction X1, wherein, in the worn state, the inner core housing 1111 is closer to the ear than the outer core housing 1112. A mold parting surface 111b between the outer core housing 1112 and the inner core housing 1111 is inclined towards the free end FE on the side on which the inner core housing 1111 is located, so that the flexible insert block 1131 can be arranged as far as possible in the region of the outer core housing 1111 that corresponds to the free end FE. For example, it is provided that in conjunction with Fig. 11 the entire flexible insert block 1131 is arranged in the area of ​​the outer core housing 111 corresponding to the free end FE in order to simplify the structure of the core module 11 and reduce machining costs.

[0057] For example, in connection with the Fig. 7, Fig. 8 and Fig. It is evident from Figure 11 that the core module 11 can comprise a flexible coating 1132, wherein the hardness of the flexible coating 1132 is less than the hardness of the core housing 111. The core housing 111 can be a plastic part. The flexible coating 1132 can consist of silicone, rubber, or other materials and can be formed on a predetermined area of ​​the core housing 111 by injection molding, bonding with an adhesive, or otherwise. Furthermore, it is provided that the flexible coating 1132 can integrally cover at least part of the outer surface of the flexible insert block 1131 and at least part of the outer surface of the outer core housing 1112 not covered by the flexible insert block 1131, which contributes to improving the optical uniformity of the core module 11. Naturally, the flexible coating 1132 can also cover the outer surface of the inner core housing 1111.The hardness of the flexible insert block 1131 is lower than that of the flexible coating 1132 to ensure sufficient flexibility of the flexible insert block 1131. Furthermore, the flexible coating 1132 improves the comfort of the earphone 10 when worn and provides a degree of structural rigidity to protect the flexible insert block 1131. The outer surface area of ​​the flexible insert block 1131 is also specified to be between 126 mm. 2 and 189 mm 2The aforementioned area can vary. If the area mentioned above is too small, this can easily lead to a deterioration in the comfort of the core module 11 when worn. If the area mentioned above is too large, this can easily lead to the core module 11 having an excessively large volume, and to the area in which the flexible insert block 1131 does not abut the cavum conchae being too large, which contradicts the original purpose of the arrangement of the flexible insert block 1131. Furthermore, it is intended that the thickness of the flexible coating 1132 is less than the thickness of the outer core casing 1112.

[0058] For example, in connection with the Fig. 11 and Fig. As can be seen from Figure 9, the core module 11 can comprise metallic functional patterns such as an antenna pattern 1141 and / or a touch pattern 1142, which are arranged between the outer core housing 1112 and the flexible coating 1132. The antenna pattern 1141 can be formed on the outside of the outer core housing 1112 using laser direct structuring (LDS). The touch pattern 1142 can either be formed on the outside of the outer core housing 1112 using laser direct structuring or be bonded to the outside of the outer core housing 1112 as a flexible touch circuit board. Furthermore, the outer core housing 1112 is provided with metallized holes, each connected to the antenna pattern 1141 and the touch pattern 1142, respectively.Since the main control board 13 is located in the core housing 111, for example by connecting the main control board 13 to the outer core housing 1112, the main control board 13 can come into contact with the inner walls of the respective metallized holes via elastic metal parts such as pogo pins or metal snap discs. For example, the antenna pattern 1141 is connected to pogo pin 131 and the touch pattern 1142 to pogo pin 132, which are soldered onto the main control board 13. Accordingly, the loudspeaker 112 is located on a side of the main control board 13 facing away from the outer core housing 1112.Compared to the arrangement of the antenna pattern 1141 and the touch pattern 1142, each on the inner side of the outer core housing 1112 facing the loudspeaker 112, the distance between the antenna pattern and the main control circuit board 13 can be increased by arranging the antenna pattern 1141 on the outer side of the outer core housing 1112. This increases the antenna's clear area, thus improving the interference immunity of the antenna pattern 1141. Conversely, arranging the touch pattern 1142 on the outer side of the outer core housing 1112 reduces the distance between the touch pattern and an external signal-triggering source (e.g., a user's finger). This reduces the touch distance, thus increasing the sensitivity of the touch pattern 1142 to user touches.

[0059] In some embodiments, the antenna pattern 1141 can peripherally surround the touch pattern 1142 in order to utilize the space on the outside of the outer core housing 1112. The antenna pattern 1141 can be U-shaped and the touch pattern 1142 square.

[0060] Furthermore, it is provided that the core module 11 can include a microphone 133 soldered to the main control circuit board 13, wherein the microphone 133 can record the user's voice and ambient sounds via through-holes formed on the outer core housing 1112. The microphone 133 can be pressed further against the outer core housing 1112 when the main control circuit board 13 is connected to the outer core housing 1112.

[0061] For example, in connection with the Fig. 10 and Fig. It can be seen from Figure 11 that the inner core housing 1111 can comprise a bottom wall 1113 and a first side wall 1114 connected to the bottom wall 1113, and that the outer core housing 1112 can comprise a top wall 1115 and a second side wall 1116 connected to the top wall 1115, wherein the second side wall 1116 and the first side wall 1114 are interlocked along the mold parting line 111b and can support each other. This is evident when viewed in the width direction Z and in a reference direction pointing from the connection end CE to the free end FE (e.g., in the opposite direction of the arrow Y in the Fig. 10 and Fig. 11) A portion of the first side wall 1114 located near the free end FE gradually approaches the bottom wall 1113 in the thickness direction X1. Similarly, a portion of the second side wall 1116 located near the free end FE gradually moves further away from the top wall 1115 in the thickness direction X1. As a result, the mold parting surface 111b is inclined towards the free end FE on the side where the inner core housing 1111 is located. The flexible insert block 1131 is at least partially located on the outside of the second side wall 1116. For example, it is provided that in conjunction with the Fig. 11 and Fig. 9 The flexible insert block 1131 is arranged not only on the outside of the second side wall 1116, but also partially on the outside of the top wall 1115. Accordingly, the sound outlet opening 111a can be arranged on the bottom wall 1113. Of course, the sound outlet opening 111a can also be arranged either on a side of the first side wall 1114, corresponding to the underside LS, or at a corner between the first side wall 1114 and the bottom wall 1113. Furthermore, it is provided that the antenna pattern 1141 and the touch pattern 1142, as well as their respective metallized holes, can be arranged on the top wall 1115, and the through-holes for sound reception by the microphone 133 can also be arranged on the top wall 1115.

[0062] For example, in connection with the Fig. 7 and Fig. 11 It is evident that the outer core housing 1112 can be provided with an insert slot located at least partially on the second side wall 1116, in which the flexible insert block 1131 is inserted, so that the outer surface of an area of ​​the outer core housing 1112 that is not covered by the flexible insert block 1131 transitions continuously into the outer surface of the flexible insert block 1131. The Fig. The area shown in Figure 7, in which the flexible insert block 1131 is located, can simply be considered the previously mentioned insert slot. This is not only advantageous for the accumulation of the flexible insert block 1131 on the outer core housing 1112 during the injection molding process, thus preventing overflow of the flexible insert block 1131. Furthermore, it is advantageous for improving the optical quality of the core module 11 and avoiding irregularities on the surface of the core module 11.

[0063] Furthermore, it is provided that the second side wall 1116 can comprise a first partial side wall section 1117 and a second partial side wall section 1118 connected to the first partial side wall section 1117, wherein the first partial side wall section 1117 is located closer to the upper wall 1115 in the thickness direction X1 than the second partial side wall section 1118, and wherein the second partial side wall section 1118 projects towards the outside of the core housing 111 relative to the first partial side wall section 1117. In short, the second side wall 1116 can be stepped. This is not only advantageous for the accumulation of the flexible insert block 1131 on the outer core housing 1112 during the injection molding process, thus preventing overflow of the flexible insert block 1131.Furthermore, it is also advantageous for a better thrust of the core module 11 into the cavum conchae via the flexible insert block 1131, which improves the comfort of the earphone 10 when worn.

[0064] Furthermore, it is provided that the main control circuit board 13 is connectable to the outer core housing 1112, for example, attached to a heat-melt pin connected to the top wall 1115, and can partially overlap with the first partial side wall section 1117 in the thickness direction X1; and that the loudspeaker 112 can partially overlap with the second partial side wall section 1118 in the thickness direction X1. This is thus advantageous for arranging a sufficiently large loudspeaker 112 in the core housing 111, so that the volume of the sound produced by the earphone 10 is increased.

[0065] For example, in connection with the Fig. 10 and Fig. As can be seen in Figure 8, the core housing 111 can be provided with a pressure relief opening 111c, wherein the pressure relief opening 111c establishes communication between a space on the side of the loudspeaker 112 facing the main control circuit board 13 and the external environment, i.e., air can freely flow in and out of this aforementioned space. This is thus advantageous for reducing the resistance of the diaphragm of the loudspeaker 112 during the vibration process. Furthermore, the pressure relief opening 111c can be oriented towards the top of the head when worn, to advantageously prevent sound waves transmitted via the pressure relief opening 111c from being audible as sound loss (i.e., the second sound loss mentioned above).Based on the Helmholtz resonator, the opening diameter of the pressure relief opening 111c can be as large as possible, so that the resonance frequency of the second sound loss is shifted as far as possible into a higher frequency band (e.g. a frequency range greater than 4 kHz), which helps to further avoid hearing the second sound loss.

[0066] Furthermore, it is provided that the core housing 111 can be equipped with an opening for sound regulation 111d, wherein the opening for sound regulation 111d causes the resonance frequency of the second sound loss to be shifted as far as possible into a higher frequency band (e.g., a frequency range greater than 4 kHz), which further contributes to preventing the second sound loss from being heard. The area of ​​the opening for sound regulation 111d can be smaller than the area of ​​the pressure relief opening 111c, so that the space on the side of the loudspeaker 112 facing the main control circuit board 13 communicates more extensively with the outside environment via the pressure relief opening 111c.Furthermore, the distance between the sound outlet opening 111a and the pressure relief opening 111c in the lateral direction Z is greater than the distance between the sound outlet opening 111a and the sound regulation opening 111d in the lateral direction Z, in order to prevent the sound waves emitted by the sound outlet opening 111a and the pressure relief opening 111c from canceling each other out of phase in the near field. This helps to increase the volume of the sound emitted by the sound outlet opening 111a that the user hears. Accordingly, the sound regulation opening 111d is located closer to the connection end CE than the sound outlet opening 111a, in order to increase the distance between the two in the longitudinal direction Y1 and thus prevent the sound waves emitted by the sound outlet opening 111a and the sound regulation opening 111d from canceling each other out of phase in the near field.This helps to increase the volume of the sound emitted through the sound outlet 111a, which the user hears.

[0067] For example, in connection with Fig. As can be seen in Figure 10, the sound outlet opening 111a, the pressure relief opening 111c, and the sound regulation opening 111d can be arranged on the inner core housing 1111, for example, the sound outlet opening 111a on the bottom wall 1113 and the pressure relief opening 111c and the sound regulation opening 111d each on the first side wall 1114. The pressure relief opening 111c and the sound regulation opening 111d can each be arranged on opposite sides of the first side wall 1114 in the width direction Z. Because the sound outlet opening 111a, the pressure relief opening 111c, and the sound regulation opening 111d are all arranged on the inner core housing 1111, the outer core housing 1112 has a simpler structure, which contributes to reducing machining costs.By arranging the pressure relief opening 111c and the sound regulation opening 111d on the two opposite sides of the first side wall 1114 in the width direction Z, the above-mentioned mold parting surface 111b can also be arranged symmetrically with respect to a reference plane perpendicular to the width direction Z, which contributes to improving the optical quality of the core module 11.

[0068] For example, in connection with the Fig. 7 and Fig. As can be seen in Figure 8, the core module 11 can comprise a support 115 arranged in the core housing 111, wherein the support 115 and the loudspeaker 112 can enclose an acoustic chamber 116, so that the acoustic chamber 116 is separated from other structures in the core housing 111 (e.g., the main control circuit board 13, etc.), which contributes to improving the acoustic performance of the core module 11. The core housing 111 is provided with acoustic openings, for example, at least one pressure relief opening 111c and one sound regulation opening 111d. The support 115 is provided with an acoustic channel 1151, which establishes communication between the acoustic openings and the acoustic chamber 116, in order to facilitate communication between the acoustic chamber 116 and the external environment; that is, air can freely flow in and out of the acoustic chamber 116.This is advantageous in reducing the resistance of the diaphragm of the loudspeaker 112 during the vibration process.

[0069] Furthermore, it is provided that the carrier 115, together with the core housing 111, forms a first adhesive slot 1171, which at least partially surrounds the aforementioned acoustic openings, wherein a first adhesive for sealing a mounting gap between the carrier 115 and the core housing 111 is contained in the first adhesive slot 1171. That is, the first adhesive achieves a watertight seal, thereby advantageously preventing sweat, rainwater, and other liquid droplets from penetrating from the outside into a space in which the main control circuit board 13 is located in the core housing 111.Based on the Helmholtz resonator, in contrast to the prior art where a silicone sleeve is pressed against the core housing 111 by the carrier 115 to achieve a watertight seal, the present technical solution eliminates the need for the silicone sleeve in the prior art by providing a watertight seal with the first adhesive. This is advantageous for shortening the length of a portion (including the acoustic channel 1151 and the acoustic opening) of the acoustic chamber 116 that communicates with the external environment. This shifts the resonance frequency of the sound loss emitted and generated through the pressure relief opening 111c (i.e., the aforementioned second sound loss) as far as possible into a higher frequency band (e.g., a frequency range greater than 4 kHz) to further prevent the second sound loss from being heard.

[0070] It should be noted that the first adhesive slot 1171 at least partially surrounds the pressure relief opening 111c if the acoustic opening mentioned above is the pressure relief opening 111c; that the first adhesive slot 1171 at least partially surrounds the sound regulation opening 111d if the acoustic opening mentioned above is the sound regulation opening 111d; and that the first adhesive slot 1171 at least partially surrounds the pressure relief opening 111c or the sound regulation opening 111d if the acoustic openings mentioned above are the pressure relief opening 111c or the sound regulation opening 111d. For the sake of simplicity, and in conjunction with the Fig. 8, Fig. 10 and Fig. Paragraph 12 provides that the present application is explained by way of example, in which the acoustic openings are the pressure relief opening 111c and the sound regulation opening 111d, respectively, and the first adhesive slot 1171 at least partially surrounds the pressure relief opening 111c and the sound regulation opening 111d, respectively. It is further provided that the first adhesive slot 1171 can completely surround the acoustic openings, i.e., the first adhesive slot 1171 forms a complete annular structure, if the distance between the support 115 and the core housing 111 (e.g., its bottom wall 1113) is sufficiently large, or if the bottom wall 1113 and the first side wall 1114 of the core housing 111 are formed as components not formed in one piece (i.e., as two separate components).

[0071] For example, in connection with the Fig. 12 and Fig. As can be seen in Figure 10, the carrier 115 can comprise an annular body 1152 and a docking part 1153 connected to the annular body 1152. The annular body 1152 is mounted peripherally on the loudspeaker 112 to form the acoustic chamber 116. The acoustic channel 1151 runs through the docking part 1153 and the annular body 1152. Furthermore, the docking part 1153 is located between the annular body 1152 and the core housing 111 and at least partially surrounds the aforementioned acoustic openings, with the docking part 1153 together with the core housing 111 forming the first adhesive slot 1171. Since the acoustic openings can be the pressure relief opening 111c and the sound regulation opening 111d, two docking parts 1153 and two first adhesive slots 1171 are provided accordingly. Accordingly, the docking part 1153 together with the first side wall 1114 forms the first adhesive slot 1171.By arranging the carrier 115 in a ring shape, one side of the loudspeaker 112 facing the main control circuit board 13 is exposed, which contributes to reducing the thickness of the core module 11 in the thickness direction X1.

[0072] For example, in connection with the Fig. 10 and Fig. As can be seen in Figure 8, a recess 1119 can be formed on the inside of the core housing 111, wherein the aforementioned acoustic openings can be provided at the bottom of the recess 1119, wherein the core module 11 can comprise a sound-absorbing mesh 118 arranged in the recess 1119, and wherein the docking part 1153 presses the sound-absorbing mesh 118 against the bottom of the recess 1119. This is advantageous not only for preventing the sound-absorbing mesh 118 from being scratched by the support 115 during assembly, but also for reducing the assembly gap between the support 115, the sound-absorbing mesh 118, and the inner core housing 1111, and for preventing the sound-absorbing mesh 118 from wobbling. The sound-absorbing mesh 118 can be attached to the bottom of the depression 1119 beforehand using double-sided adhesive tape or adhesive.The sound-absorbing mesh 118 can also be pre-attached to a steel protective mesh. The aforementioned steel protective mesh is then attached to the bottom of the recess 1119 using double-sided adhesive tape or adhesive. Since the acoustic openings mentioned above can be the pressure relief opening 111c and the sound regulation opening 111d, two recesses 1119 and two sound-absorbing meshes 118 are provided accordingly.

[0073] Furthermore, it is provided that the aforementioned first adhesive can also be used to seal the mounting gap between the support 115 and the sound-absorbing mesh 118 and / or the mounting gap between the sound-absorbing mesh 118 and the core housing 111 (e.g. side walls of the recess 1119), which contributes to further watertight sealing.

[0074] For example, in connection with the Fig. 8, Fig. 10 and Fig. Figure 12 shows that the docking part 1153 can be used to form a bottom wall and a side slotted wall of the first adhesive slot 1171, and the core housing 111 can be used to form another side slotted wall of the first adhesive slot 1171. The slotted wall on the core housing 111 and the slotted wall on the docking part 1153 are arranged opposite each other, so that the first adhesive slot 1171 has a certain width and depth. Naturally, the docking part 1153 can be used to form one side slotted wall of the first adhesive slot 1171, and the core housing 111 can be used to form the bottom wall and another side slotted wall of the first adhesive slot 1171.Alternatively, the docking part 1153 can be used to form a lateral slotted wall and part of the bottom wall of the first adhesive slot 1171, and the core housing 111 can be used to form another lateral slotted wall and the other part of the bottom wall of the first adhesive slot 1171.

[0075] For example, in connection with the Fig. 12, Fig. 13 to Fig. It is evident from Figure 14 that the loudspeaker 112 can comprise a body 1121 and an annular support platform 1122 arranged around the circumference of the body 1121, wherein a lower end of the support 115 can be supported on the annular support platform 1122, wherein the acoustic channel 1151 can be open on its side facing the annular support platform 1122, and wherein the annular support platform 1122 further closes the open part of the acoustic channel 1151. It can simply be assumed that the first adhesive slot 1171 partially surrounds the aforementioned acoustic openings in order to subsequently facilitate the filling of the first adhesive slot 1171 with adhesive, for example by a dispensing process, etc.

[0076] In some embodiments, the annular support platform 1122 may comprise a first annular support surface 1123 and a second annular support surface 1124, which are arranged in a stepped fashion, with the second annular support surface 1124 peripherally surrounding the first annular support surface 1123. A portion of the lower end of the carrier 115 may be supported on the first annular support surface 1123, with a gap being formed between the other portion of the lower end of the carrier 115 and the second annular support surface 1124, so that the carrier 115, the annular support platform 1122, and the core housing 111 interact to form a second adhesive slot 1172.The second adhesive slot 1172 contains a second adhesive for sealing an assembly gap between any two of the supports 115, the annular support platform 1122 and the core housing 111 in order to achieve a corresponding watertight seal.

[0077] In some embodiments, it is provided that an upper end of the support 115 can be attached to the body 1121 and together with the body 1121 forms a third adhesive slot 1173, wherein a third adhesive is received in the third adhesive slot 1173 for sealing a mounting gap between the support 115 and the body 1121 in order to achieve a corresponding watertight seal.

[0078] It should be noted that a specific assembly process of the core module 11 may comprise the following process steps, whereby the sequence of all process steps can be adapted as required: 1) Attaching the sound-absorbing mesh 118 to the bottom of the recess 1119 with double-sided adhesive tape beforehand; 2) Attaching the loudspeaker 112 to the bottom wall 1113 and dispensing the adhesive into the mounting gap between the two, so that the corresponding adhesive accumulates on the second annular contact surface 1124 of the loudspeaker 112;3) Attaching the carrier 115 to the loudspeaker 112 before the adhesive has cured in step 2), wherein the lower end of the carrier 115 is supported on the first annular support surface 1123 of the loudspeaker 112, so that the area between the lower end of the carrier 115 and the second annular support surface 1124 is also filled with adhesive, wherein the docking part 1153 of the carrier 115 presses against the sound-absorbing mesh 118 and together with the first side wall 1114 forms a first adhesive slot 1171, and wherein the upper end of the carrier 115 is attached to the body 1121 and together with the body 1121 forms the third adhesive slot 1173;and 4) Dispensing the adhesive in the assembly gaps between the first adhesive slot 1171, the third adhesive slot 1173, and the lower end of the carrier 115 on the one hand, and the loudspeaker 112 or the inner core housing 1111 on the other. Since the assembly gaps between the lower end of the carrier 115 and the loudspeaker 112 or the inner core housing 1111 are very close to the first adhesive slot 1171, the assembly gaps between the lower end of the carrier 115 and the loudspeaker 112 or the inner core housing 1111 can simply be considered a continuation of the first adhesive slot 1171. That is, the first adhesive slot 1171 and the second adhesive slot 1172 can communicate with each other.

[0079] For example, in connection with the Fig. 15, Fig. 16, Fig. 17 to Fig. As can be seen from Figures 18 and 7, the hook structure 12 can comprise an adapter housing 122 connected to the core module 11, wherein the adapter housing 122 can be pre-formed with a receiving chamber 124, and wherein the earphone 10 can comprise an electronic element 15 that is subsequently installed in the receiving chamber 124. In particular, the connection between the adapter housing 122 and the core module 11 can be established by one of the following assembly types or a combination thereof: snap-fit ​​connection, welded connection, adhesive connection, threaded connection, screw connection, etc.In contrast to the prior art, in which the electronic element 15 is arranged in the core module 11, the present technical solution offers the advantage of retrofitting the electronic element 15 in the specified receiving chamber 124 of the hook structure 12, not only to save space in the core module 11 and thus make its structure more compact and smaller, to simplify the structure of the core module 11 and thus improve its assembly efficiency, but also to arrange the relative positions of the individual structural components in the earphone 10 appropriately, so that both the core module 11 and the hook structure 12 can be utilized.

[0080] It should be noted that the expression "the adapter housing 122 is pre-formed with the receiving chamber 124" is to be understood as meaning that the receiving chamber 124 is formed simultaneously with the molding of the adapter housing 122 and is not machined after the molding of the adapter housing 122. For example, the adapter housing 122 is intended to be a plastic housing, whereby the corresponding receiving chamber 124 can be obtained by the arrangement of a suitable mold core after the injection molding of the plastic housing. Accordingly, the expression "the electronic element 15 is subsequently installed in the receiving chamber 124" is to be understood as meaning that the electronic element 15 and the adapter housing 122 are not formed as one-piece components.For example, the adapter housing 122 is provided to be a plastic housing, whereby the electronic element 15 is not injection-molded into the plastic housing as a single piece. Based on this, the description mentioned later, that the adapter housing 122 is pre-formed with a through hole 1251, a blind hole 1252, and a through hole 1253, etc., is identical or similar and will not be repeated here. Of course, the receiving chamber 124 can also be obtained by a drilling process after the adapter housing 122 has been formed, whereby the through hole 1251, the blind hole 1252, and the through hole 1253, etc., can likewise be obtained by a drilling process after the adapter housing 122 has been formed.

[0081] For example, in connection with Fig. Figure 7 shows that the electronic element 15 can be coupled to the main control circuit board 13 to establish an electrical connection between the hook structure 12 and the core module 11, and that the adapter housing 122 can be pluggably attached to the core housing 111 to establish a simple and reliable structural connection between the hook structure 12 and the core module 11. This pluggable attachment is understood to mean that, initially, one of the adapter housing 122 and the core housing 111 partially projects into the other in one assembly direction and is then pluggably attached to it by means of another limiting structure, such as a plug-in pin, the assembly direction of which is not parallel to the assembly direction mentioned above.This previously mentioned pluggable fastening can also be understood to mean that such a pluggable fastening can be produced when one of the adapter housing 122 and the core housing 111 partially protrudes into the other without the previously mentioned limiting structure being required.

[0082] For example, in connection with the Fig. 7, Fig. 10 and Fig. It is evident from Figure 16 that the adapter housing 122 can be provided with first locking structures 1221 and the core housing 111 with second locking structures 1222, wherein the first locking structures 1221 project into the core housing 111 and engage with the second locking structures 1222 in a snap-fit ​​configuration, so that the adapter housing 122 is snapped and secured to the core housing 111, with the two being directly inserted and secured without the need for any further limiting structure, which is simple and reliable. The first locking structures 1221 can be integrally formed on the adapter housing 122, with two of them spaced relatively apart from each other in the thickness direction X1. The second locking structures 1222 can be integrally formed on the inner core housing 1111, uniquely corresponding to the first locking structures 1221.

[0083] For example, in connection with Fig. As can be seen in Figure 7, the earphone 10 can comprise a flexible printed circuit board 16, wherein the flexible printed circuit board 16 can be arranged at least partially in the receiving chamber 124 to be connected to the electronic element 15, and extends into the core housing 111, so that the electronic element 15 is connected to the main control circuit board 13 via the flexible printed circuit board 16. For example, it is provided that the electronic element 15 is soldered to one end of the flexible printed circuit board 16 by means of surface-mount technology (SMT), wherein the other end of the circuit board of the flexible printed circuit board 16 and the main control circuit board 13 are snapped together via a BTB connector.The loudspeaker 112 can be arranged such that it is connected to the flexible circuit board 16 along one of its extension paths, for example by soldering a connecting wire of the loudspeaker 112 to a corresponding area of ​​the flexible circuit board 16. This also connects the loudspeaker 112 to the main control circuit board 13 via the flexible circuit board 16, so that the connecting wire of the loudspeaker 112 does not need to be extended to connect to the main control circuit board 13. This simplifies the wiring structure of the earphone 10 and reduces production costs.

[0084] For example, in connection with the Fig. 16 and Fig. As can be seen in Figure 15, the adapter housing 122 can be pre-formed with a through-hole 1251, which communicates with the receiving chamber 124, and the electronic element 15 can comprise an electrode clamp 151, which is at least partially arranged in the through-hole 1251. The electrode clamp 151 can be either an extendable elastic component, such as a pogo pin, or a non-extendable rigid component, such as a metal pin. The diameter of the through-hole 1251 can be larger than the outer diameter of the electrode clamp 151 to facilitate subsequent retrofitting of the electrode clamp 151. Of course, the electrode clamp 151 can also be formed as a single unit with the adapter housing 122.Furthermore, it is provided that the electrode clamp 151 can be oriented towards the ear when worn, so that it is not visible when worn, which contributes to improving the optical quality of the earphone 10 when worn.

[0085] It should be noted that if the electrode clamp 151 is designed as such a retractable elastic component, such as a pogo-PIN, the extension direction of the electrode clamp 151 can be its extension and retraction direction; and if the electrode clamp 151 is designed as such a non-retractable rigid component, such as a metal pin, the extension direction of the electrode clamp 151 can be a direction in which its axis is located.

[0086] Furthermore, it is provided that several electrode clamps 151 may be provided as needed, for example for charging, testing, etc.

[0087] In some embodiments, the electrode clamps 151 may comprise a positive charging clamp 1511 and a negative charging clamp 1512, spaced apart from each other, with the positive charging clamp 1511 and the negative charging clamp 1512 each being arranged in their respective through-holes 1251 to facilitate charging the earphone 10 by the electrode clamps 151. Alternatively, only one of the positive charging clamp 1511 and the negative charging clamp 1512 may be arranged on the adapter housing 122, and the other may be arranged on another housing for the hook structure 12, for example, the battery housing 123 or the inner core housing 1111.

[0088] In some embodiments, the electrode terminals 151 may include a test terminal 1513, which is arranged at a distance from the positive charging terminal 1511 and the negative charging terminal 1512. The test terminal 1513 can be used for testing functions such as a charging test or to verify whether the earphone 10 has been inserted into or removed from a charging case. Of course, the test terminal 1513 can also be replaced by electronic elements such as Hall sensors.

[0089] In some embodiments, it is provided that, when viewed in the extension direction of the electrode terminals 151, the connecting lines between each of the positive charging terminal 1511, the negative charging terminal 1512 and the test terminal 1513 can form a triangle, such as an equilateral triangle.

[0090] In some embodiments, when viewed in the direction of extension of the electrode terminals 151, the positive charging terminal 1511, the negative charging terminal 1512, and the test terminal 1513 can be spaced apart from one another in a line segment, such as a straight line segment. The distance between the positive charging terminal 1511 and the negative charging terminal 1512 can be greater than the distance between the negative charging terminal 1512 and the test terminal 1513. For example, the negative charging terminal 1512 is located between the positive charging terminal 1511 and the test terminal 1513, and the distance between the positive charging terminal 1511 and the negative charging terminal 1512 is greater than the distance between the negative charging terminal 1512 and the test terminal 1513. As another example, the test terminal 1513 is located between the positive charging terminal 1511 and the negative charging terminal 1512.This maximizes the distance between the positive charging terminal 1511 and the negative charging terminal 1512 when space is limited for arranging the electrode terminals 151 on the adapter housing 122, thus helping to avoid a short circuit between the two.

[0091] For example, in connection with Fig. As can be seen in Figure 15, the adapter housing 122 can be provided with a shoulder 126 on its outer surface, with the through holes 1251 extending further through the shoulder 126, so that the multiple electrode clamps 151 are exposed at the shoulder 126. This flattens any uneven areas of the adapter housing 122 caused by a certain curvature, thus facilitating the arrangement of the electrode clamps 151. The positive charging clamp 1511, the negative charging clamp 1512, and the test clamp 1513 can be arranged successively at intervals along the length of the shoulder 126.

[0092] For example, in connection with the Fig. 15, Fig. 16 to Fig. It can be seen that the hook structure 12 can encompass a magnet 127, with the magnet 127 and the electrode clamps 151 being exposed on the same side of the adapter housing 122. This means that the magnet 127 is closer to the external environment, towards which the exposed ends of the electrode clamps 151 point. This reduces the distance between the magnet 127 and a magnetic structure for a charger, such as the charging box, for interaction with the magnet 127, or the distance between the magnet and a Hall sensor used for interaction with the magnet 127. This contributes to improving the reliability of functions such as charging and testing.The magnet 127 and the electrode clamps 151 can be arranged adjacent to each other to allow the magnet 127 to interact with the magnetic structure of the charger, such as the charging box, so that the electrode clamps 151 interact with the electrode clamps of the charger to facilitate charging. Accordingly, the shoulder 126 can project beyond the adapter housing 122 around the magnet 127; that is, the magnet 127 can be lower than the shoulder 126 to facilitate contact between the electrode clamps 151 and the electrode clamps of the charger, such as the charging box. Naturally, in the embodiment where the magnet 127 interacts with the Hall sensor of the charger, such as the charging box, for testing purposes, the magnet 127 and the electrode clamps 151 are arranged adjacent to each other.It is also possible that the electrode clamps for the charger, such as the charging box used to interact with the electrode clamps 151, and the Hall sensor are arranged adjacent to each other, which helps to reduce the area required for the charger, such as the charging box used to house the aforementioned electrode clamps and the aforementioned Hall sensor.

[0093] Furthermore, the hook structure 12 is provided to include a flexible coating 128, the hardness of which is lower than that of the adapter housing 122. The adapter housing 122 may be a plastic part. The flexible coating 128 may be made of silicone, rubber, or other materials and may be formed on the adapter housing 122 by injection molding, bonding with an adhesive, or other means. The flexible coating 128 is also provided to cover the adapter housing 122 and the magnet 127, so that the magnet 127 is not exposed, but the electrode clamps 151 are.This makes it possible not only to meet the application requirements of the electrode clamps 151, but also to conceal the magnet 127, preventing it from being exposed and worn or impairing its optical quality. Furthermore, the flexible coating 128 also contributes to improving the comfort of the earphone 10 when worn. The thickness of the flexible coating 128 is less than the thickness of the adapter housing 122.

[0094] For example, in connection with Fig. As can be seen in Figure 16, the adapter housing 122 can be pre-formed with a blind hole 1252, which is not in communication with the receiving chamber 124, in order to increase the water and dust resistance of the receiving chamber 124. The magnet 127 can be arranged at least within the blind hole 1252 and exposed through an open end of the blind hole 1252. This is advantageous not only for reducing the thickness of the adapter housing 122 in the area of ​​the magnet 127, but also for improving the optical quality of the earphone 10 in the area of ​​the magnet 127. Of course, the blind hole 1252 can also be configured as a through hole.

[0095] For example, in connection with Fig. As can be seen from Figure 15, when viewed in the direction of extension of the electrode clamps 151, the multiple electrode clamps 151 can be spaced apart from one another in a line segment, such as a straight or curved line segment. The magnet 127 can be located on any side of this line segment, or the magnet 127 can intersect this line segment and lie at least partially between any two adjacent electrode clamps 151. For example, it is provided that a magnet 127 is located entirely on one side of this line segment, or that the magnet intersects this line segment and lies entirely between any two adjacent electrode clamps 151.As a further example, it is provided that two magnets 127 are provided, one of these magnets 127 being located entirely on one side of the aforementioned line segment and the other magnet 127 being located entirely on the other side of the aforementioned line segment. Furthermore, it is provided, for example, that one magnet 127 is provided, wherein a part of the magnet 127 intersects the aforementioned line segment and lies between any two adjacent electrode clamps 151, and the other part of the magnet is located below the electrode clamps 151 in the aforementioned direction of extension.

[0096] For example, in connection with Fig. As can be seen in Figure 15, the multiple electrode clamps 151 can comprise the positive charging clamp 1511, the negative charging clamp 1512, and the test clamp 1513, which are arranged in a straight line segment. The magnet 127 can be located on one side of this straight line segment. Furthermore, it is provided that, when viewed in the direction of extension of the electrode clamps 151, there are a first distance, a second distance, and a third distance between the center of the magnet 127 on the one hand and the center of the positive charging clamp 1511, the negative charging clamp 1512, and the test clamp 1513, respectively, the third distance being larger than the first and second distances in order to ensure the reliability of the charging process.It should be noted that in the embodiment in which the hook structure 12 is provided with the flexible coating 128, the flexible coating 128 can first be removed in order to easily determine the relative positional relationship between the magnet 127 on the one hand and the positive charging terminal 1511, the negative charging terminal 1512 and the test terminal 1513 on the other.

[0097] For example, in connection with the Fig. 16, Fig. 17 to Fig. As can be seen in Figure 18, the electronic element 15 can comprise the electrode clamps 151 and a microphone 152, wherein the adapter housing 122 can be pre-configured with the recording chamber 124 and the through-holes 1251 and 1253, each of which communicates with the recording chamber 124. Due to the different functions of the electrode clamps 151 and the microphone 152, the through-holes 1251 and 1253 can be located on different side walls of the adapter housing 122. The electrode clamps 151 can be at least partially arranged in the through-holes 1251. The microphone 152 can be located in the recording chamber 124 and pick up sound (e.g., the user's voice or ambient sounds) outside the earphone 10 through the through-hole 1253.This optimized arrangement of the relative positions between the electrode clamps 151 and the microphone 152 allows for efficient use of the space in the receiving chamber 124, resulting in a more compact and smaller earphone 10 structure. Furthermore, the earphone 10 is designed to include a support assembly 17, which is at least partially located within the receiving chamber 124. This support assembly 17 can support and secure the electrode clamps 151 and the microphone 152 to the side walls corresponding to the through-holes 1251 and 1253, respectively. This is advantageous not only for preventing the electrode clamps 151 and the microphone 152 from detaching from the adapter housing 122, but also for increasing the water and dust resistance of the electronic element 15. Moreover, this design results in a simple and reliable structure.

[0098] For example, in connection with Fig. It can be seen in Figure 18 that the flexible printed circuit board 16 can comprise a first printed circuit board section 161, a second printed circuit board section 162, and a third printed circuit board section 163, which are formed in one piece, wherein the electrode clamps 151 are soldered to the first printed circuit board section 161, wherein the second printed circuit board section 162 is bent relative to the first printed circuit board section 161, and wherein the microphone 152 is soldered to the third printed circuit board section 163 and bent relative to the second printed circuit board section 162. In other words, after bending the flexible printed circuit board 16 twice, the first printed circuit board section 161, the second printed circuit board section 162, and the third printed circuit board section 163 can correspond to three sides of a six-sided structure, arranged in pairs.In this arrangement, one end of the second circuit board section 162, furthest from the third circuit board section 163, is connected to the first circuit board section 161, and the remaining part of the second circuit board section 162 is not connected to the first circuit board section 161. This allows, after the flexible circuit board 16, the electrode clamps 151, and the microphone 152 are assembled on it in the adapter housing 122, for an operator to first press the end of the second circuit board section 162, which is connected to the first circuit board section 161, so that it is as flush as possible with the first circuit board section 161, in order to avoid interference with the support arrangement 17 to be assembled subsequently.

[0099] In some embodiments, the adapter housing 122 can comprise two housings whose parting line is perpendicular to the direction of extension of the electrode clamps 151, with the two housings being interlocked and forming the receiving chamber 124. The support arrangement 17 can be formed integrally with one of the housings to support (or press against) the electrode clamps 151 and the microphone 152 when the two housings are interlocked. Alternatively, at least one of a first support element for supporting the electrode clamps 151 and a second support element for supporting the microphone 152 for the support arrangement 17 can be designed independently of the adapter housing 122 to support (or press against) the electrode clamps 151 and the microphone 152 when the two housings are interlocked.Alternatively, it is also possible to assemble the support arrangement 17 after the two housings have been locked together, in order to support (or press against) the electrode clamps 151 and the microphone 152 respectively.

[0100] In some embodiments, a portion of the adapter housing 122, corresponding at least to the receiving chamber 124, forms a complete housing structure. In this case, at least the first support element, consisting of the first support element for supporting the electrode clamps 151 and the second support element for supporting the microphone 152 for the support arrangement 17, can be designed independently of the adapter housing 122, at least to facilitate the assembly of the electrode clamps 151.

[0101] For example, in connection with Fig. As can be seen in Figure 18, the support arrangement 17 can be designed independently of the adapter housing 122 and is inserted into the receiving chamber 124. Because the support arrangement 17, the electrode clamps 151, and the microphone 152 can each be designed independently of the adapter housing 122, they can be assembled in a specific sequence. This helps to avoid unnecessary structural interference and improve assembly efficiency.

[0102] In some embodiments, both the first support element for supporting the electrode clamps 151 and the second support element for supporting the microphone 152 for the support arrangement 17 can each be designed independently of the adapter housing 122; that is, the first support element and the second support element are independent of each other in order to support (or press against) the electrode clamps 151 and the microphone 152, respectively. This allows the first support element and the second support element for the support arrangement 17 to be designed differently depending on the actual requirements.

[0103] In some embodiments, the support arrangement 17 can be formed as a single, integrally molded component, meaning that the first support element for supporting the electrode clamps 151 and the second support element for supporting the microphone 152 are connected to each other for the support arrangement 17. This is advantageous not only for simplifying the structure of the support arrangement 17, but also for avoiding the need to assemble the first and second support elements due to their small size. Furthermore, once in position, the support arrangement 17 can be firmly attached to a chamber wall of the receiving chamber 124. This results in a certain degree of damping when inserting or removing the support arrangement 17, leading to a simple and reliable structure.Accordingly, a guide groove and a limiting groove can be provided on the chamber wall of the receiving chamber 124, which interact with the support arrangement 17. Naturally, the support arrangement 17 can also be further bonded to the chamber wall of the receiving chamber 124 by a dispensing process.

[0104] For example, in connection with the Fig. 17 and Fig. 18 shows that the support arrangement 17 and the receiving chamber 124 are at least partially oriented in at least one reference direction perpendicular to the direction of use of the support arrangement 17 relative to the receiving chamber 124 (e.g., to the direction indicated by the arrows in Fig. 17 and Fig. The support arrangement 17 (in the direction specified in section 18) can be dimensioned such that it gradually decreases in size in the aforementioned direction of use, in order to facilitate its insertion into a space between the electrode clamps 151 and the microphone 152. In other words, the support arrangement 17 can be dimensioned, at least partially, in at least one reference direction perpendicular to the aforementioned direction of use, such that it gradually decreases in size in the direction of use. Likewise, the recording chamber 124 can be dimensioned, at least partially, in the same reference direction, such that it gradually decreases in size in the aforementioned direction of use, with the change tendencies of the two being the same or similar. This helps to ensure that the support arrangement 17 is firmly attached to the chamber wall of the recording chamber 124 after insertion.

[0105] For example, in connection with the Fig. 16, Fig. 17 to Fig. As can be seen from Figure 18, the chamber wall of the receiving chamber 124 can comprise a first chamber wall 1241 and a second chamber wall 1242, which are arranged side by side and spaced apart from each other, as well as a third chamber wall 1243, which connects the first chamber wall 1241 to the second chamber wall 1242. The through-hole 1251 can be provided on the first chamber wall 1241 and the through-hole 1253 on the third chamber wall 1243. Accordingly, the support arrangement 17 can, for example, be in the form of an L-shaped structure comprising a base plate 171 and a first side plate 172 connected to the base plate 171. A main surface can be arranged on one side of the base plate 171 opposite the first chamber wall 1241 and support the electrode clamps 151. A main surface on one side of the first side plate 172 can be arranged opposite the third chamber wall 1243 and support the microphone 152.This allows the base plate 171 to support the electrode clamps 151 and the first side plate 172 to support the microphone 152, after the electrode clamps 151 and the microphone 152 have been assembled in position and the support arrangement 17 has been inserted or positioned in the recording chamber 124 in the direction of use mentioned above.

[0106] Furthermore, it is provided that an orthogonal projection of the microphone 152 onto the first chamber wall 1241 can at least partially cover the electrode terminals 151, for example by having the microphone 152 cover part of the positive charging terminal 1511, which contributes to a more compact design of the individual substructures.

[0107] In some embodiments, the base plate 171 and the receiving chamber 124 can be dimensioned, at least partially, in a first reference direction RD1, which is perpendicular to the aforementioned direction of use and parallel to the main surface on the side of the base plate 171, such that they gradually decrease in size in the aforementioned direction of use. This means that the base plate 171 can be dimensioned at a front end or a rear end in the aforementioned direction of use, or in a section between the front end and the rear end, such that its dimensions remain unchanged with respect to the first reference direction RD1 in the aforementioned direction of use.The first side plate 172 and the receiving chamber 124 can be dimensioned in a second reference direction RD2, which runs perpendicular to the above-mentioned direction of use and parallel to the main surface on the side of the first side plate 172, such that their dimensions remain unchanged in the direction of use.

[0108] In some embodiments, the first side plate 172 and the receiving chamber 124 can be dimensioned, at least partially, in the second reference direction RD2, which runs perpendicular to the aforementioned direction of use and parallel to the main surface on the side of the first side plate 172, such that they gradually decrease in size in the aforementioned direction of use. This means that the first side plate 172 can be dimensioned at a front end or a rear end in the aforementioned direction of use, or at a section between the front end and the rear end, such that its dimensions remain unchanged with respect to the second reference direction RD2 in the aforementioned direction of use.The base plate 171 and the receiving chamber 124 can be dimensioned in the first reference direction RD1, which runs perpendicular to the above-mentioned direction of use and parallel to the main surface on the side of the base plate 171, such that their dimensions remain unchanged in the above-mentioned direction of use.

[0109] In some embodiments, the first side plate 172 and the receiving chamber 124 can be dimensioned, at least partially, in the second reference direction RD2, which runs perpendicular to the aforementioned direction of use and parallel to the main surface on the side of the first side plate 172, such that they gradually become smaller in the aforementioned direction of use.

[0110] It should be noted that with regard to the support arrangement 17, the dimension of the base plate 171 in the first reference direction RD1 can simply be considered as the width of the base plate 171, and the dimension of the first side plate 172 in the second reference direction RD2 can simply be considered as the height of the first side plate 172.

[0111] For example, in connection with the Fig. 16, Fig. 17 to Fig. As can be seen from Figure 18, the support arrangement 17 can comprise a second side plate 173 connected to the base plate 171, wherein the second side plate 173 and the first side plate 172 are arranged side by side and spaced apart from each other on the same side of the base plate 171, and wherein the second side plate 173 rests against the second chamber wall 1242 to impart a supporting force to the base plate 171 in the direction of the electrode clamps 151, which contributes to improving the supporting effect of the support arrangement 17 on the electrode clamps 151. In the embodiment in which the electrode clamps 151 comprise the positive charging clamp 1511 and the negative charging clamp 1512, which are spaced apart from each other in a direction perpendicular to the aforementioned direction of use, the second side plate 173 can be located between the positive charging clamp 1511 and the negative charging clamp 1512, so that the individual parts of the electrode clamps 151 are uniformly loaded.This contributes to a further improvement in the supporting effect of the support arrangement 17 on the electrode clamps 151.

[0112] For example, in connection with the Fig. 16, Fig. 17 to Fig. As can be seen in Figure 18, the chamber wall of the receiving chamber 124 can include a fourth chamber wall 1244, which connects the first chamber wall 1241 to the second chamber wall 1242 and is opposite the third chamber wall 1243. The first chamber wall 1241 and the second chamber wall 1242 can essentially be designed as parallel, flat structures, and the third chamber wall 1243 and the fourth chamber wall 1244 can essentially be designed as arc-shaped structures extending away from each other, in order to maximize the volume of the receiving chamber 124 while keeping the volume of the adapter housing 122 limited. Accordingly, the support arrangement 17 can include a third side plate 174 connected to the base plate 171.The first side plate 172 and the third side plate 174 are located in a direction perpendicular to the aforementioned direction of use, each at both lateral edges of the base plate 171, and the second side plate 173 is located between the first side plate 172 and the third side plate 174. The third side plate 174 rests against the fourth chamber wall 1244 to provide the first side plate 172 with a supporting force towards the microphone 152, which contributes to improving the supporting effect of the support arrangement 17 on the microphone 152.

[0113] Furthermore, it is provided that, with regard to the base plate 171, the height of the second side plate 173 can be greater than the height of the first side plate 172 and the height of the third side plate 174, in order to facilitate the attachment of the second side plate 173 to the second chamber wall 1242 and the attachment of the third side plate 174 to the fourth chamber wall 1244. Since the second side plate 173 and the third side plate 174 are not in direct contact with the electrode clamps 151 and the microphone 152, they can also perform a guiding function during the insertion of the support arrangement 17 into the recording chamber 124. Due to the comparatively greater height of the second side plate 173, the support arrangement 17 can accordingly include reinforcing ribs 175 that connect the second side plate 173 to the base plate 171.The reinforcing ribs 175 can be arranged on two opposite sides of the second side plate 173, which face the first side plate 172 and the third side plate 174 respectively.

[0114] For example, in connection with the Fig. 15, Fig. 16 to Fig. As can be seen from Figures 17 and 9, the hook structure 12 can comprise an elastic metal wire 121, an adapter housing 122, a battery housing 123, and a conductor 129, wherein the two ends of the elastic metal wire 121 and the conductor 129 can each be connected to the adapter housing 122 and the battery housing 123, respectively, so that the conductor 129 extends along the elastic metal wire 121 and is inserted into the adapter housing 122 and the battery housing 123. Naturally, the conductor 129 can also be inserted into a predefined cable guide channel only after the elastic metal wire 121 has been connected to the adapter housing 122 and the battery housing 123.The battery 14 can be arranged in the battery housing 123 and connected to the flexible circuit board 16 via the line 129, so that the battery 14 is also connected to the main control circuit board 13 via the flexible circuit board 16, which simplifies the wiring structure of the earphone 10 and reduces production costs. In other words, components such as the electrode clamps 151, the microphone 152, and the battery 14 for the hook structure 12 can be connected to the main control circuit board 13 via the flexible circuit board 16.

[0115] Furthermore, it is provided that the flexible coating 128 can also encase at least exposed parts of the elastic metal wire 121 and the conductor 129, as well as at least part of the battery 123, to facilitate the exposure of the conductor 129, which contributes to improving the optical quality of the earphone 10.

[0116] It should be noted that the adapter housing 122 can also be designed as a substructure of the core housing 111, for example, by forming the adapter housing 122 integrally with the inner core housing 1111, or by forming, for example, a part of the adapter housing 122 integrally with the inner core housing 1111 and the remaining part integrally with the outer core housing 1112. With the exception of the adapter housing 122, all other parts of the hook structure 12, such as an end of the elastic metal wire 121 located away from the battery housing 123, or, for example, the battery housing 123 itself, are firmly connected to the core module 11, including the adapter housing 122, for example, by a pluggable connection.Accordingly, the positions of structural components such as the electrode clamps 151, the microphone 152 and the magnet 127 are also adjusted, although this will not be repeated here.

[0117] Based on the above relevant descriptions, the present application provides for a housing arrangement that may comprise a plastic housing, metallic functional elements, and a silicone coating. The metallic functional elements are arranged on the outside of the plastic housing. The silicone coating may be applied by injection molding, bonding with adhesive, or otherwise to a side of the metallic functional elements facing away from the plastic housing, as well as to a part of the plastic housing not covered by the metallic functional elements.By arranging the metallic functional patterns on the outer surface of the plastic housing (facing the silicone coating), as opposed to arranging them on the inner surface opposite the silicone coating, they are located further away from interference caused by other electronic elements within the housing assembly or closer to a signal-triggering source outside the housing assembly. This increases the interference immunity and sensitivity of the metallic functional patterns. The structure of the plastic housing can be identical or similar to that of the core housing 111 or its outer core housing 1112, and the structure of the silicone coating can be identical or similar to that of the flexible coating 1132, though this will not be repeated here.

[0118] In some embodiments, the metallic functional patterns can be configured as antenna patterns 1141 or touch patterns 1142. The antenna pattern 1141 is arranged on the outside of the plastic housing to increase the distance between the antenna pattern and other electronic elements inside the housing, thus increasing the antenna's clear area and thereby improving its immunity to interference. By arranging the touch pattern 1142 on the outside of the plastic housing, the distance between the touch pattern and an external signal-triggering source (e.g., a user's finger) can be reduced; that is, the touch distance is decreased, thus increasing the sensitivity of the touch pattern 1142 to user touch.

[0119] In some embodiments, the metallic functional patterns may comprise an antenna pattern 1141 and a touch pattern 1142, wherein the antenna pattern 1141 may peripherally surround the touch pattern 1142 in order to utilize the space on the outside of the plastic housing. The antenna pattern 1141 may be U-shaped and the touch pattern 1142 square.

[0120] In some embodiments, the thickness of the silicone coating can be thinner than the thickness of the plastic housing in order to further increase the interference resistance and sensitivity of the metallic functional patterns while simultaneously covering and protecting them with the silicone coating, and to reduce the volume of the housing arrangement.

[0121] The housing arrangement can serve as an example of a core housing for the loudspeaker 112. The relative positional relationship between the plastic housing and the plastic coating can be the same or similar to that between the core housing 111 and the flexible coating 1132, although this will not be repeated here.

[0122] Furthermore, it is intended that the housing arrangement can be used not only in an earphone 10 but also in other electronic devices, such as smart glasses. The electronic device can comprise either a core module with a loudspeaker 112 or a main control circuit board 13, as well as a loudspeaker 112 and a battery 14, each coupled to the main control circuit board 13. The housing arrangement can serve to accommodate at least one of the electronic elements, such as the loudspeaker 112, the main control circuit board 13, or the battery 14, but can also support the loudspeaker 112 at its corresponding mounting point within the electronic device.It should be noted that with regard to electronic devices such as earphones and data glasses that are based on the principle of bone conduction, the loudspeaker 112 can be adaptively adjusted to a bone conduction loudspeaker, the basic structure of which is known to those skilled in the art and is not repeated here.

[0123] The present application provides a housing arrangement that may include a first housing, electrode clamps 151, a magnet 127, and a flexible coating 128. The electrode clamps 151 and the magnet 127 are exposed on the same side of the first housing. The flexible coating 128 has a lower hardness than the first housing and covers the first housing and the magnet 127, so that the magnet 127 is not exposed, but the electrode clamps 151 are. Thus, compared to the arrangement of the magnet 127 within the first housing, in the present technical solution the magnet 127 is located closer to the external environment, towards which the exposed ends of the electrode clamps 151 point.This reduces the distance between the magnet 127 and a magnetic structure for a charger, such as a charging box, for interaction with the magnet 127, or the distance between the magnet and a Hall sensor used for interaction with the magnet 127. This contributes to improving the reliability of functions such as charging and testing. Therefore, the housing arrangement can be used both in electrical devices, such as earphones 10 or smart glasses, and in chargers, such as the charging box. In other words, the electronic device can be either an electrical device or a charger. For the sake of simplicity, the first housing can be an adapter housing 122.

[0124] In some embodiments, the first housing may have through holes 1251 and a blind hole 1252, wherein the electrode clamps 151 may be arranged at least partially in the through holes 1251, and wherein the magnet 127 may be arranged at least partially in the blind hole 1252 and is exposed through an open end of the blind hole 1252. This is advantageous not only for reducing the thickness of the first housing in the area of ​​the magnet 127, but also for improving the optical quality of the first housing in the area of ​​the magnet 127. Of course, the blind hole 1252 can also be configured as a through hole.

[0125] In some embodiments, the first housing may be provided with a shoulder 126 on its outer surface, wherein the shoulder 126 is arranged adjacent to the magnet 127 and projects beyond the first housing around the magnet 127, and wherein the through-holes 1251 extend further through the shoulder 126, so that the multiple electrode clamps 151 are exposed at each shoulder 126. This flattens any uneven areas of the first housing caused by a certain curvature, thus facilitating the arrangement of the electrode clamps 151. The shoulder 126 may be elongated, resulting in a simple and reliable structure.

[0126] In some embodiments, the housing arrangement may include a flexible printed circuit board 16, wherein the electrode terminals 151 are connected to the flexible printed circuit board 16 to simplify the wiring of the electrode terminals 151. The first housing may be configured with a receiving chamber 124, wherein the flexible printed circuit board 16 may be arranged at least partially within the receiving chamber 124. The through holes 1251 communicate with the receiving chamber 124, and the blind hole 1252 does not communicate with the receiving chamber 124, in order to improve the water and dust tightness of the first housing.

[0127] In some embodiments, the housing arrangement may comprise a second housing, an elastic metal wire 121, and a conductor 129, wherein the two ends of the elastic metal wire 121 and the conductor 129, respectively, are connectable to the first housing and the second housing, such that the conductor 129 extends along the elastic metal wire 121 and is inserted into the first housing and the second housing. For the sake of simplicity, the second housing may be a battery housing 123. Furthermore, a battery 14 is arranged in the second housing, the battery 14 being connected to the flexible circuit board 16 via the conductor 129; that is, both the battery 14 and the electrode terminals 151 are connected to the flexible circuit board 16 to simplify the wiring.Accordingly, the flexible coating 128 further envelops the elastic metal wire 121 and the conductor 129 to facilitate the exposure of the conductor 129.

[0128] In some embodiments, the housing arrangement is used in an earphone 10 and may include a third housing for receiving a loudspeaker 112, which is pluggably attached to the first housing. For the sake of simplicity, the third housing may be a core housing 111.

[0129] The present application provides a housing arrangement that may comprise a first housing, electrode clamps 151, a microphone 152, and a support arrangement 17. The first housing may be provided with a receiving chamber 124 and through-holes 1251 and 1253, which communicate with the receiving chamber 124. The through-holes 1251 and 1253 are located on different side walls of the first housing. The electrode clamps 151 may be arranged at least partially in the through-holes 1251. The microphone 152 may be arranged in the receiving chamber 124 and receive sound outside the housing arrangement via the through-hole 1253. Furthermore, the support arrangement 17 is provided to be located in the receiving chamber 124 and to support and fasten the electrode clamps 151 and the microphone 152 to the side walls corresponding to the through-holes 1251 and 1253, respectively.This is advantageous not only for avoiding the separation of the electrode clamps 151 and the microphone 152 from the first housing, but also for increasing the water and dust resistance of the electrode clamps 151 and the microphone 152. Furthermore, it results in a simple and reliable structure. For the sake of simplicity, the first housing can be either the adapter housing 122, the core housing 111, or a housing structure formed in one piece from the core housing 111 and the adapter housing 122.

[0130] In some embodiments, it is provided that the support arrangement 17 can be designed independently of the first housing and is inserted into the receiving chamber 124.

[0131] In some embodiments, it is provided that the support arrangement 17 can be designed as a one-piece molded component.

[0132] In some embodiments, the housing arrangement is used in an earphone 10 and may include a third housing for receiving a loudspeaker 112, which is pluggably attached to the first housing. The first housing may be the adapter housing 122 and the third housing the core housing 111.

[0133] Furthermore, it is intended that the housing arrangement can be used not only in an earphone 10 but also in other electronic devices, such as smart glasses. The electronic device can comprise a main control circuit board 13, a loudspeaker 112, and a battery 14, each coupled to the main control circuit board 13. The housing arrangement can serve to accommodate at least one of the electronic elements, such as the loudspeaker 112, the main control circuit board 13, or the battery 14, but can also support the loudspeaker 112 at its corresponding mounting point within the electronic device.It should be noted that with regard to electronic devices such as earphones and data glasses that are based on the principle of bone conduction, the loudspeaker 112 can be adaptively adjusted to a bone conduction loudspeaker, the basic structure of which is known to those skilled in the art and is not repeated here.

[0134] The following refers to one of the in Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 described embodiments or a combination thereof relate to relevant content of the priority text. This includes the structures, relative positions or interrelationships between technical features, the functions of the technical features, and the like for at least some technical features in one of the examples described in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17 to Fig. 18 described embodiments or a combination thereof, identical or similar to the structures, relative positions or connection relationships between technical features, the functions of the technical features and the like for at least some technical features in one of the Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 described embodiments or a combination thereof. For example, it is provided that the structures of the “earphone 10”, the “core module 11”, the “hook structure 12”, the “speaker 112”, the “main control circuit board 13”, the “battery 14” and the like are in one of the embodiments described in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17 to Fig. 18 described embodiments or a combination thereof are in each case identical or similar to the structures of an “earphone 20”, a “holding part 23”, a “hook part 21”, a “core 24”, a “main circuit board 25”, a “battery 26” and the like in one of the Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 described embodiments or a combination thereof. Furthermore, the relative positions or connection relationships between them are also the same or similar. As a further example, it is provided that the relative position between the “free end FE” and the “connection end CE” in one of the embodiments described in Figure 28 is the same. Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17 to Fig. 18 described embodiments or a combination thereof is the same or similar to the relative position between a “free end 231” and a “connection end 232” in one of the embodiments described in Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 described embodiments or a combination thereof; and that the relative position between the “adapter housing 122” and the “battery housing 123” in one of the embodiments described in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17 to Fig. 18 described embodiments or a combination thereof is the same or similar to the relative position between a “connecting segment 211” and a “free segment 212” in one of the embodiments described in Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 described embodiments or a combination thereof. Furthermore, it is provided, for example, that “the relative position or connection relationship between the flexible insert block 1131 or the flexible coating 1132 and the core housing 111 and their function” in one of the embodiments described in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17 to Fig. 18 described embodiments or a combination thereof are the same or similar to “for a composite structure of sponge and silicone, the sponge is located primarily at the free end 231 of the retaining part 23 in order to bring the retaining part 23 into contact with the ear via the sponge and the silicone thereon, i.e., one area of ​​the retaining part 23 with the sponge is softer than another area” in one of the Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 described embodiments or a combination thereof. It should be noted that, due to the numerous technical features and the complex relative positions and interrelationships between them, a complete list is not possible. However, the person skilled in the art should generally be able to recognize the respective relationships between the technical features, their relative positions and interrelationships, and the functions of the technical features, and the like, which are not listed.

[0135] In connection with the Fig. 19 and Fig. The earphone 20 can comprise a hook part 21 and a retaining part 23 connected to the hook part 21, wherein the hook part 21 serves, at least partially, to hang between the back of the ear and the user's head, and the retaining part 23 serves to make contact with the front of the ear, enabling the hook part 21 and the retaining part 23 to clamp the ear. In other words, in three-dimensional space, the hook part 21 and the retaining part 23 cannot be coplanar. The retaining part 23 can have a thickness direction, a length direction, and a width direction that are orthogonal to each other. The thickness direction is defined as the direction in which the retaining part 23 extends toward or away from the ear when worn. The length of the retaining part 23 in the length direction is greater than or equal to the width of the retaining part 23 in the width direction.Based on this, the hook part 21 can comprise a connecting segment 211 connected to the holding part 23 and a free segment 212 connected to the connecting segment 211, wherein the connecting segment 211 and the free segment 212 are each located on two opposite sides of the holding part 23 in the aforementioned width direction. Furthermore, it is provided that in a reference plane perpendicular to the aforementioned thickness direction (for example, in the drawing plane), the maximum distance (as defined, for example, by T1 in . Fig. (19) between the connecting segment 211 and the retaining part 23 in the aforementioned lateral direction can be between 10 mm and 17 mm. Preferably, the aforementioned maximum distance can be between 11 mm and 14 mm. This not only promotes an increase in the distance between the center of gravity of the retaining part 23 and the upper ear canal, i.e., a lowering of the center of gravity of the retaining part 23 when worn, but also an increase in the distance between the center of mass of the retaining part 23 and the antihelix of the ear, i.e., an increase in the moment of inertia of the earphone 20 with respect to the antihelix or the upper ear canal during user movements such as head shaking left and right, head lowering or raising, and jumping up and down, thus improving the wearing stability of the earphone 20.

[0136] It should be noted that, based on the standards ANSI: S3.36, S3.25 and IEC: 60318-7, a simulator with a head and (left and right) ear, such as the GRAS 45BC KEMAR, can be manufactured. Therefore, expressions such as "the user is wearing the earphone" or "the earphone is in the worn state" or the like in the present application may refer to the earphone being worn on the ear of the aforementioned simulator. Based on this, the "worn state" described in the present application may refer to a proper worn state after the earphone has been worn on the ear of the aforementioned simulator. To facilitate the description, the aforementioned proper worn state may be further illustrated schematically from perspectives such as the front or back of the ear, as, for example, the proper worn state in Fig. 21 or 22. Naturally, due to individual variations, there could be some deviation between the actual worn state of the earphone 20 and the aforementioned proper worn state. Furthermore, it is intended that the center of gravity described in the present application refers to a point of action of the resultant of the gravitational forces that the Earth exerts on every minute part of an object. The center of mass described in the present application refers to an imaginary point on a material system where the mass is considered to be concentrated. As a rule, we can simply assume that the gravitational field of our surroundings is uniform, so that the center of mass and the center of gravity can simply be considered to be coincident. Based on this, the center of gravity of an object (for example, the holding part 23) can be determined using a plumb line.To facilitate the determination of the center of gravity of the retaining part 23, the retaining part 23 can first be measured along a path in . Fig. The reference line RL shown in Figure 19 is to be separated from the earphone 20. Therefore, the reference line RL can be a dividing line between the hook part 21 and the retaining part 23. For example, it is provided that the retaining part 23 can be removed from the earphone 20 by disconnecting the plug connection between the hook part and the retaining part if an elastic metal wire is arranged in the hook part 21 and the retaining part 23 is made of plastic and the two are plugged together.As a further example, it is provided that the retaining part 23 can also be removed from the earphone 20 by separating the connection between the hook part and the retaining part, if the hook part 21 and the retaining part 23 are each made of plastic and the two are connected to each other by at least one of an adhesive connection, a snap connection and a plug connection.

[0137] Furthermore, the earphone 20 is provided to include a core 24, a main circuit board 25, and a battery 26. The core 24 primarily serves to convert an electrical signal into a corresponding mechanical vibration (i.e., "sound generation") and can be electrically connected to the main circuit board 25 or the battery 26 via a conductor. The main circuit board 25 primarily serves to control the core 24 for sound generation. The battery 26 primarily serves to supply power to the sound generation of the core 24. Naturally, the earphone 20 described in the present application can also include sound transmitters such as a microphone, a sound pickup, or the like, as well as communication devices such as Bluetooth or the like, which are connected to the main circuit board 25 or the battery 26 via conductors to perform their respective functions.Furthermore, it is provided that in the worn state of the earphone 20, the retaining part 23 is located primarily in front of the user's ear (as in . Fig. (21 shown), whereby the retaining part 23 can be provided with several functional buttons in addition to the core 24 to facilitate user interaction with the earphone 20. Based on this, the main circuit board 25 can also be arranged on the retaining part 23 to reduce the wiring distance between the core 24 or other functional buttons and the main circuit board 25.

[0138] For example, in connection with the Fig. 21 and Fig. 19 shows that, in the worn state and when viewed in the direction of the sagittal axis of the human body, the angle (as shown, for example, by θ) between the longitudinal direction of the retaining part 23 and the direction of the coronal axis of the human body can be between 15° and 60°. Preferably, the aforementioned angle can be between 25° and 45°. In conjunction with the Fig. 21 and Fig. 19. It is evident that the retaining element 23 is generally designed as a regular structure, for example, the retaining element 23 is rectangular with rounded corners in its outer shape, so that the retaining element 23 is arranged symmetrically, at least with respect to its outer shape, with respect to an axis of symmetry parallel to the longitudinal direction of the retaining element 23 (as shown, for example, by the dotted line SA). That is, the angle θ can be an angle between the axis of symmetry SA and the sagittal axis Y of the human body.

[0139] For example, in Fig. As shown in Figure 19, in some embodiments the retaining part 23 has a free end 231 not connected to the hook part 21 and a connecting end 232 connected to the hook part 21. The free end 231 of the retaining part 23 can be located further away from an end of the free segment 212 of the hook part 21 that is further away from the connecting segment 211 than the connecting end 232 of the retaining part 23. As shown in Fig. As shown in Figure 21, when worn and viewed in the direction of the coronal axis of the human body, it is evident that the free end 231 of the retaining part 23, which is not connected to the hook part 21, is closer to the top of the user's head than the connecting end 232 of the retaining part 23, which is connected to the hook part 21. Thus, the retaining part 23 is arranged at an angle with respect to the sagittal axis of the human body, so that, when worn, the retaining part 23 is inclined towards the external auditory canal of the ear in order to increase the distance between the center of gravity of the retaining part 23 and the upper base of the ear, thereby lowering the center of gravity of the retaining part 23 in the worn state, which contributes to improving the wearing stability of the earphone 20.

[0140] For example, in connection with Fig. It is evident from Figure 21 that, in the worn state, the free end 231 of the retaining part 23 is in contact with the antihelix of the ear, so that the retaining part 23 presses the ear against the antihelix. The orthogonal projection of the retaining part 23 onto the ear in the direction of the coronal axis of the human body partially overlaps the concha of the ear. That is, the concha is at least partially covered by the retaining part 23. Preferably, in the worn state, the orthogonal projection of the retaining part 23 onto the ear in the direction of the coronal axis is offset at least partially towards the external auditory canal. That is, the external auditory canal is not covered by the retaining part 23, in order to facilitate the opening of the external auditory canal.In contrast to the prior art, where the cymba conchae of the ear is at least partially covered by the retaining part 23, in the present embodiment the cavum conchae of the ear is at least partially covered by the retaining part 23, i.e., the retaining part 23 is inclined towards the external auditory canal of the ear in the worn state, so that the distance between the center of mass of the retaining part 23 and the antihelix of the ear is increased, i.e., the moment of inertia of the earphone 20 with respect to the antihelix or the upper ear base of the ear is increased during the user's movements such as shaking the head left and right, lowering or raising the head, and jumping up and down, which contributes to improving the wearing stability of the earphone 20.

[0141] For example, in connection with Fig. 21 It is evident that in a reference plane (for example, the YZ plane) in which the sagittal plane of the human body is located, the ratio of the distance (as shown, for example, by T2) between the center of gravity (as shown, for example, by G) of the retaining part 23 and the free end 231 of the retaining part 23 to the length (as shown, for example, by L) of the retaining part 23 can be between 0.5 and 0.75. Under other specific conditions, such as the inclined arrangement of the retaining part 23, the center of gravity of the retaining part 23 is thereby located further away from the free end 231 of the retaining part 23, so that the distance between the center of mass of the retaining part 23 and the antihelix of the ear is increased, i.e., the moment of inertia of the earphone 20 with respect to the antihelix or the upper ear base of the ear during the user's movements such as head shaking left and right, head lowering, etc.Head lifting and jumping up and down are increased, which contributes to improving the wearing stability of the earphone 20. The reference plane in which the sagittal plane of the human body is located can also be defined as a reference plane perpendicular to the thickness direction of the holding part 23.

[0142] Furthermore, it is provided that the length of the retaining part 23 (e.g. as defined by L in Fig. (21 shown) can be between 22 mm and 35 mm. Preferably, the aforementioned length can be between 25 mm and 32 mm. If the length of the retaining part 23 is too short, i.e., if it is too short to contact the antihelix of the ear, this is disadvantageous because the retaining part 23 and the hook part 21 clamp the user's ear together. Conversely, if the length of the retaining part 23 is too long, i.e., if it is so long that it extends beyond the helix of the ear, this makes the earphone 20 prone to being touched by the user or a third party, which is detrimental to the wearing reliability of the earphone 20.

[0143] Furthermore, it is provided that, in the longitudinal direction of the retaining part 23 and in a positive direction in which the free end 231 of the retaining part 23 points towards the connecting end 232 of the retaining part 23, the ratio of the width of the retaining part 23 at three-quarters of its length to the width of the retaining part 23 at one-quarter of its length can be between 1 and 2. Preferably, the aforementioned ratio can be between 1 and 1.3. This is advantageous because the center of gravity (i.e., the center of mass) of the retaining part 23 is shifted towards its connecting end 232, which contributes to increasing the distance between the center of gravity of the retaining part 23 and the upper ear base, as well as the distance between the center of mass of the retaining part 23 and the antihelix of the ear.

[0144] Based on the description above, the core 24 can be arranged on the retaining part 23. In the worn state, the retaining part 23 can also be inclined towards the outer ear canal, so that the core 24 can be located at the connecting end 232 of the retaining part 23. This reduces the distance between the core 24 (in particular, a sound outlet opening in the retaining part 23) and the outer ear canal, thereby increasing the intensity of the sound emitted by the core 24 and heard by the user. Furthermore, the connecting end 232 of the retaining part 23 allows the volume of the core 24 to be larger if the connecting end 232 of the retaining part 23 is wider than its free end 231. This also increases the intensity of the sound emitted by the core 24.

[0145] For example, the battery 26 can be arranged in the hook part 21 (not shown in the figures). In particular, the battery 26 can be arranged close to the free segment 212 of the hook part 21. This contributes to increasing the capacity of the battery 26 and to balancing the weight distribution of the earphone 20.

[0146] For example, in Fig. 19 and Fig. It is evident from Figure 20 that the core 24, the main circuit board 25, and the battery 26 can be arranged in the retaining part 23. Thus, the hook part 21 can be profiled as a structure that better conforms to the back of the ear (and the head) without interference from the battery 26, which contributes to improved wearing stability of the earphone 20. The core 24 can be located at the connecting end 232 of the retaining part 23, and the battery 26 at the free end 231 of the retaining part 23. The position of the center of gravity of the retaining part 23 can be adjusted by changing parameters such as the volume of the core 24, the capacity of the battery 26, etc. For example, it is provided that the battery 26 is located closer to the free end 231 than the core 24, and that the dimension of the core 24 in the lateral direction of the retaining part 23 is larger than the dimension of the battery 26 in the aforementioned lateral direction.

[0147] For example, in Fig. 23 or Fig. As shown in Figure 26, in some embodiments the free end 231 of the retaining part 23 can be located closer to the end of the free segment 212 of the hook part 21 that is further away from the connecting segment 211 than the connecting end 232 of the retaining part 23. As shown in Fig. 25 or Fig. As shown in Figure 28, when worn and viewed in the direction of the coronal axis of the human body, it is evident that the free end 231 of the retaining part 23, which is not connected to the hook part 21, is further away from the top of the user's head than the connecting end 232 of the retaining part 23, which is connected to the hook part 21. Thus, the retaining part 23 is also inclined with respect to the sagittal axis of the human body in order to increase the distance between the center of gravity of the retaining part 23 and the upper base of the ear, thereby lowering the center of gravity of the retaining part 23 when worn, which contributes to improving the wearing stability of the earphone 20.

[0148] For example, the free end 231 of the retaining part 23, which is not connected to the hook part 21, can project into the concha of the ear when worn, thus enabling the retaining part 23 to be inclined relative to the sagittal axis of the human body. Similar to the embodiment described above, the core 24, the main circuit board 25, and the battery 26 are also arranged within the retaining part 23, so that the profiled structure of the hook part 21 does not interfere with the battery 26. The main difference from the embodiment described above is that the core 24 can be located closer to the free end 231 than the battery 26, thereby reducing the distance between the core 24 (particularly a sound outlet opening in the retaining part 23) and the external auditory canal of the ear, which contributes to increasing the intensity of the sound emitted by the core 24 that the user hears.It should be noted that in the present embodiment, although the free end 231 of the retaining part 23 projects into the concha of the ear, the retaining part 23 does not project into the external auditory canal to facilitate its opening. Considering the variations among individuals, the retaining part 23, when worn, could at least partially obstruct the external auditory canal. This scenario should not be confused with a scenario in which the retaining part 23 projects directly into the external auditory canal; that is, the two are distinct.

[0149] Furthermore, it is provided that the free end 231 of the retaining part 23 can be placed or pressed into the concha of the ear. For example, the retaining part 23 is placed in the concha of the ear along its length. Nor, for example, is the retaining part 23 pressed into the concha of the ear along its thickness. In addition to the fact that the hook part 21 exerts a clamping force on the back of the ear and generates forces such as friction, the retaining part 23 can thus also generate a contact force or a clamping force in the concha of the ear, as well as forces such as friction, thereby improving the wearing stability of the earphone 20.

[0150] Furthermore, it is provided that the inventor of the present application, in his long-term research and development work, has determined that if the free end 231 of the retaining part 23 projects into the conchal cavity of the ear, the retaining part 23 can at least partially cover the tragus of the ear. In fact, the tragus of the ear usually protrudes towards the front of the ear in a direction away from the user's head, so that it is easily pressed against it by the retaining part 23, which leads to discomfort when wearing the earphone 20 for extended periods. Therefore, the retaining part 23 is designed to move away from the tragus of the ear when worn, thus preventing pressure against it and improving the wearing comfort of the earphone 20.

[0151] For example, in connection with the Fig. 23 and Fig. As can be seen in Figure 24, on the inner surface of the retaining part 23 facing the ear, the connecting end 232 of the retaining part 23 projects partially further than the free end 231, so that the inner surface of the retaining part 23 facing the ear is not planar as a whole. In the worn state, the connecting end 232 of the retaining part 23 is in contact with the surrounding skin of the tragus, allowing the other areas of the retaining part 23 to move away from the tragus of the ear. Furthermore, the dimensions of the battery 26 are increased in the thickness direction of the retaining part 23 because the connecting end 232 of the retaining part 23 projects partially beyond the free end 231, and the battery 26 can be positioned at the connecting end 232 of the retaining part 23. This increases the capacity of the battery 26, thus extending the standby / usage time of the earphone 20.

[0152] For example, in connection with the Fig. 26 and Fig. Figure 27 shows that the connecting end 232 of the retaining part 23 is bent relative to the free end 231, so that the retaining part 23 as a whole is not planar. In the worn state, the connecting end 232 of the retaining part 23 is in contact with the surrounding skin of the tragus, so that the other areas of the retaining part 23 can move away from the tragus of the ear. Furthermore, it is provided that a bending point between the connecting end 232 and the free end 231 of the retaining part 23 can correspond exactly to a point between the core 24 and the battery 26, provided that the connecting end 232 of the retaining part 23 is bent relative to the free end 231, and that the core 24 is located at the free end 231 of the retaining part 23 and the battery 26 is located at the connecting end 232.

[0153] It should be noted that the main difference between the two is in Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 shown embodiments in a location where the connecting end 232 of the retaining part 23 is in contact with the user's skin in the worn state, wherein the location where the connecting end 232 of the retaining part 23 is in contact with the user's skin in the worn state is closer to the upper base of the ear, i.e., closer to the top of the user's head, in which in Fig. 26, Fig. 27 to Fig. The embodiment shown in 28 is located in the Fig. 23, Fig. 24 to Fig. 25 shown embodiment.

[0154] In addition to optimizing the retaining part 23 and its relevant structures, optimizing the weight distribution of the earphone 20 and the clamping force provided by the earphone 20 also contributes to improving the wearing stability of the earphone 20.

[0155] For example, the ratio of the mass of the hook part 21 to the mass of the retaining part 23 can be between 1 / 9 and 1 / 2. Preferably, the aforementioned ratio can be between 1 / 6.5 and 1 / 3.5. In other situations, such as a specific distance between the center of mass of the retaining part 23 and the upper base of the ear, as well as a specific distance between the center of mass of the retaining part 23 and the antihelix of the ear, the wearing stability of the earphone 20 can be increased by adjusting parameters such as the mass of the hook part 21, the mass of the retaining part 23, or the like. After the earphone 20 has been moved along the Fig. Where the reference line RL shown in Figure 19 has been cut, one part can be considered the holding part 23 and the other part the hook part 21, in order to facilitate the measurement of the mass of the hook part 21 and the holding part 23.

[0156] In some embodiments, the hook part 21 comprises an elastic metal wire connected to the retaining part 23 and an elastic cover encasing the elastic metal wire. The elastic metal wire primarily serves to adapt the hook part 21 to the retaining part 23 in order to provide the appropriate clamping force. The elastic cover primarily serves to improve the wearing comfort of the hook part 21 and its adaptation to the back of the ear (and the head). The thickness of the elastic cover can be between 1 mm and 3.5 mm. Preferably, the aforementioned thickness can be between 1.5 mm and 2.5 mm. Furthermore, the Shore hardness of the elastic cover can be between 0 and 40 A. Preferably, the aforementioned Shore hardness can be between 0 and 10 A.Accordingly, the material of the elastic cover can be silicone, foamed sponge, thermoplastic polyurethane elastomer, thermoplastic elastomer, etc., or a combination thereof. Considering that the elastic cover must come into contact with the user's skin, the material of the elastic cover can preferably be silicone alone, thermoplastic polyurethane elastomer alone, or a composite structure of sponge and silicone, in which, for example, the sponge encases the elastic metal wire and the silicone, in turn, encases the sponge.

[0157] In some embodiments, the retaining part 23 may comprise a housing and an elastic coating enclosing the housing. The housing primarily serves to accommodate components such as the core 24, the main circuit board 25, the battery 26, etc., and to adapt to the hook part 21 in order to provide the appropriate clamping force. The elastic coating primarily serves to improve the wearing comfort of the retaining part 23 and its adaptation to the front of the ear. Similarly, the thickness of the elastic coating can be between 1 mm and 3.5 mm. Preferably, the aforementioned thickness can be between 1.5 mm and 2.5 mm. Furthermore, the Shore hardness of the elastic coating can be between 0 and 40 A. Preferably, the aforementioned Shore hardness can be between 0 and 10 A.Accordingly, the material of the elastic coating can be silicone, foamed sponge, thermoplastic polyurethane elastomer, thermoplastic elastomer, etc., or a combination thereof. Considering that the elastic coating must come into contact with the user's skin, the material of the elastic coating can preferably be silicone alone, thermoplastic polyurethane elastomer alone, or a composite structure of sponge and silicone, in which, for example, the sponge encases the housing and the silicone in turn encases the sponge. Furthermore, it is provided that, in a composite structure of sponge and silicone, the sponge can be located primarily at the free end 231 of the retaining part 23 in order to bring the retaining part 23 into contact with the ear via the sponge and the silicone on it; that is, one area of ​​the retaining part 23 with the sponge is softer than another area.The area of ​​the retaining part 23 with the sponge can be larger than 2 x 2 mm². Preferably, the aforementioned area can be larger than 5 x 5 mm².

[0158] For example, the clamping force of the retaining part 23 and the hook part 21 on the user's ear in the worn state can be between 0.1 N and 0.5 N. Preferably, the aforementioned clamping force can be between 0.15 N and 0.3 N. If the clamping force is too high, this is detrimental to the wearing comfort of the earphone 20. Conversely, if the clamping force is too low, this is detrimental to the wearing stability of the earphone 20.

[0159] It should be noted that the clamping force described in the present application can be measured using a force gauge. For example, the earphone 20 is intended to be worn on the aforementioned simulator or on the user's ear, i.e., in its worn state. The force gauge is then attached to the side of the retaining part 23 facing away from the ear. Subsequently, the force gauge is pulled and the result observed. When the side of the retaining part 23 facing the user's ear is precisely separated from the user's skin, the tensile force displayed on the force gauge is read, which can simply be considered the clamping force.

[0160] Furthermore, it is provided that the orthogonal projection of the hook part 21 onto the retaining part 23 can partially overlap with the retaining part 23 in the thickness direction of the retaining part 23. This allows not only the hook part 21 and the retaining part 23 to be pressed against the ear in two directions, i.e., from the front and back of the ear, when worn, but also ensures that the aforementioned clamping force acts primarily as a pressure force, thus increasing the wearing stability and comfort of the earphone.

[0161] The above-mentioned examples are only some of the embodiments of the present application and do not limit the scope of protection of the present application. Any equivalent transformation with respect to the device or process carried out using the content of the description and drawings of the present application, as well as any direct or indirect application of such content to other related technical fields, also falls within the scope of patent protection of the present application. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 2022 / 116220

[0001]

Claims

[1] Earphones, characterized by , that the earphone comprises a core module and a hook structure connected to the core module, wherein the core module comprises a connecting end connected to the hook structure and a free end not connected to the hook structure, wherein the core module is in a worn state in front of an ear, with the free end of the core module projecting into the cavum conchae of the ear, where the hook structure, when worn, is at least partially located behind the ear, wherein the core module and the hook structure clamp an ear area corresponding to the cavum conchae from a front and back of the ear area, wherein the core module in the worn state has, in one thickness direction, an inner side facing the ear and an outer side facing away from the ear, as well as a connecting surface that connects the inner side with the outer side, wherein the connecting surface is at least partially located in the caveum conchae when worn and forms a first contact zone with the front of the ear area, where the hook structure, when worn, forms a second contact zone with the back of the ear area, wherein the second contact zone overlaps at least partially with the first contact zone in the thickness direction of the ear area, and where the thickness direction is defined as the direction in which the core module extends towards or away from the ear when worn. [2] Earphone according to claim 1, wherein the core module has a longitudinal direction and a lateral direction which are perpendicular to the thickness direction and orthogonal to each other, where the length of the core module in the longitudinal direction is greater than the width of the core module in the transverse direction, and where an orthogonal projection of the hook structure onto a reference plane perpendicular to the length direction partially overlaps with an orthogonal projection of the free end onto the reference plane. [3] Earphone according to claim 2, wherein an overlap area formed by the orthogonal projection of the hook structure onto the reference plane and the orthogonal projection of the free end onto the reference plane is located in the thickness direction between the inside and the outside of the core module. [4] Earphone according to claim 2 or 3, wherein the hook structure comprises an elastic metal wire connected to the core module and a battery housing connected to an end of the elastic metal wire remote from the core module, wherein a battery coupled to the core module is arranged in the battery housing, and where an orthogonal projection of the battery casing onto the reference plane partially overlaps with the orthogonal projection of the free end onto the reference plane. [5] Earphone according to any one of claims 1 to 4, wherein the core module has a thickness direction, a length direction and a width direction which are orthogonal to each other, where the thickness direction is defined as the direction in which the core module extends towards or away from the ear in the worn state, where the length of the core module in the longitudinal direction is greater than the width of the core module in the transverse direction, wherein the core module, in the worn state, has in the width direction a top side facing away from the external auditory canal of the ear and a bottom side facing the external auditory canal, wherein an edge of an orthogonal projection of the hook structure onto a reference plane perpendicular to the thickness direction on a side facing the core module is divided into a first section and a second section, where the first section and the second section form a continuous arc-shaped transition, where a dividing point between the first section and the second section is the point where the edge is furthest from the top in the latitudinal direction, and where the total degree of curvature of the hook structure in the first section is greater than the total degree of curvature of the hook structure in the second section. [6] Earphone according to claim 5, wherein in one extension direction of the hook structure the length of the second section is greater than the length of the first section. [7] Earphone according to claim 5 or 6, wherein the earphone has a first reference line segment parallel to the width direction, where the starting point of the first reference line segment is the point where the first reference line segment intersects the top, and the endpoint of the first reference line segment is the separation point, and where the length of the first reference line segment is between 13 mm and 20 mm. [8] Earphone according to claim 7, wherein a second reference line segment passing through a point at the quarter of the first reference line segment and parallel to the length direction intersects the first section at a first intersection point and the second section at a second intersection point, where the distance between the first intersection point and the starting point of the first reference line segment is between 9 mm and 15 mm, and the distance between the second intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm; wherein a third reference line segment, passing through a point on one half of the first reference line segment and parallel to the direction of length, intersects the first section at a third intersection point and the second section at a fourth intersection point, where the distance between the third intersection point and the starting point of the first reference line segment is between 11 mm and 18 mm, and the distance between the fourth intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm; wherein a fourth reference line segment, passing through a point at three-quarters of the way along the first reference line segment and parallel to the direction of length, intersects the first section at a fifth intersection point and the second section at a sixth intersection point, where the distance between the fifth intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm, and The distance between the sixth intersection point and the starting point of the first reference line segment is between 12 mm and 19 mm. [9] Earphone according to any one of claims 1 to 8, the core module comprising a core housing connected to the hook structure and a loudspeaker arranged in the core housing, wherein a sound outlet opening is provided on an inner side of the core housing facing the ear when worn, through which the sound waves generated by the loudspeaker are emitted, wherein, in the worn state, the free end of the core module protrudes into the cavum conchae, so that a certain distance exists between the inside of the core module and the cavum conchae, so that the core module together with the cavum conchae forms an auxiliary chamber communicating with the external auditory canal, the sound outlet opening is located at least partially in the auxiliary chamber. [10] Earphone according to claim 9, wherein the auxiliary chamber is partially open.

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