earphones

Abstract

Earphone characterized in that it comprises a core module and a hook structure connected to the core module, wherein the core module is located in front of one ear when worn and the hook structure is located at least partially behind the ear when worn, wherein the core module in the worn state has, in a thickness direction, an inner side facing the ear and an outer side facing away from the ear, wherein the thickness direction is defined as the direction in which the core module in the worn state extends towards or away from the ear, and wherein, in an unsupported state, the hook structure extends in the thickness direction first towards one side of the inside facing away from the outside and then extends towards the other side of the inside facing the outside.

Description

Technical field

[0001] The present application relates to the technical field of electronic devices, in particular an earphone. State of the art

[0002] 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 electronic devices, earphones, smart glasses, and similar products are widely used in daily life. They can work together with devices such as mobile phones and computers to provide users with a fantastic audio experience. With earphones, it is difficult to balance stability and comfort while wearing them. Disclosure of the invention

[0003] The present application provides an earphone. The earphone comprises a core module and a hook structure connected to the core module. When worn, the core module is located in front of the ear, and the hook structure is located at least partially behind the ear. When worn, the core module has, in a thickness direction, an inner surface facing the ear and an outer surface facing away from the ear. The thickness direction is defined as the direction in which the core module extends toward or away from the ear when worn. When not worn, the hook structure extends in the thickness direction first toward one side of the inner surface facing away from the outer surface and then toward the other side of the inner surface facing the outer surface.

[0004] In some embodiments, the hook structure comprises an elastic metal wire connected to the core module, wherein the elastic metal wire is located at least partially behind the ear in the worn state, and wherein a plane in which the elastic metal wire is located intersects the inside in the unworn state.

[0005] In some embodiments, it is provided that in the unsupported state the angle between the plane in which the elastic metal wire is located and the inside is between 15° and 30°.

[0006] In some embodiments, the elastic metal wire is provided to have a diameter between 0.6 mm and 0.8 mm.

[0007] In some embodiments, the hook structure includes an adapter housing that connects the elastic metal wire to the core module, wherein the adapter housing is located at least partially in front of the ear when worn, and wherein the adapter housing extends in the thickness direction towards the side of the inside facing away from the outside.

[0008] In some embodiments, the hook structure comprises a battery housing connected to an end of the elastic metal wire located further away from the core module, wherein a battery coupled to the core module is arranged in the battery housing, and wherein, in the unsupported state, the battery housing is located at least partially between the inside and the outside in the thickness direction.

[0009] 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 is greater than the width of the core module, wherein, in the worn state, the core module has, in the lateral direction, a top surface facing away from the external auditory canal of the ear, a bottom surface facing the external auditory canal of the ear, and a back surface connecting the top surface to the bottom surface, wherein, in the worn state, the back surface is located at an end that points in the longitudinal direction towards the back of the head, wherein a first intersection point is formed between a mean dividing line of an orthogonal projection of the hook structure onto a reference plane perpendicular to the lateral direction and an orthogonal projection of the inside onto the reference plane.and wherein a second intersection point is formed between the middle dividing line and an orthogonal projection of the back side onto the reference plane.

[0010] In some embodiments, it is provided that a first reference line segment is formed by connecting the first intersection point and the second intersection point, wherein the first reference line segment has a first component in the length direction and a second component in the thickness direction, and wherein the ratio of the first component to the length of the core modulus is between 0.12 and 0.19 and the ratio of the second component to the thickness of the core modulus is between 0.1 and 0.16.

[0011] In some embodiments, it is provided that a second reference line segment is formed by connecting a point in the middle dividing line, which is furthest from the inside in the thickness direction, and the first intersection point, wherein the second reference line segment has a third component in the length direction and a fourth component in the thickness direction, and wherein the ratio of the third component to the length of the core modulus is between 0.43 and 0.66 and the ratio of the fourth component to the thickness of the core modulus is between 0.26 and 0.4.

[0012] In some embodiments, it is provided that, in the worn state, a free end of the core module, which is not connected to the hook structure, protrudes into the cavum conchae of the ear.

[0013] 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 a side 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 connected to the external auditory canal of the ear, and wherein the sound outlet opening is located at least partially in the auxiliary chamber.

[0014] In some embodiments, the auxiliary chamber is provided to be partially open.

[0015] The present application has the following advantageous effects: In the earphone of the present application, the core module or the hook structure is located, at least partially, in front of or behind an ear when worn, in order to enable the earphone to be worn on the ear. The hook structure extends in the thickness direction of the core module first towards the side of the inner surface facing away from the outside, so that in a direction perpendicular to the thickness direction, a projection of part of the hook structure can be offset from a projection of the core module, so that, when worn, the upper part of the ear exerts less supporting force on the earphone, thus contributing to improved wearing comfort.Subsequently, the hook structure extends in the thickness direction to the other, outer side of the inner side, so that in the direction perpendicular to the thickness direction a projection of another part of the hook structure and the projection of the core module can overlap, so that in the worn state all physiological parts of the ear except the upper ear base can exert a greater supporting force on the earphone and this contributes to improving the wearing stability of the earphone. Brief description of the characters

[0016] 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 is located in different positions on the ear in an embodiment of the present application; 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; Fig. Figure 20 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 21 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 22 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 23 shows a schematic structural representation of the earphone in an embodiment of the present application; Fig. Figure 24 shows a schematic structural representation of the hook structure in an embodiment of the present application; Fig. Figure 25 shows a schematic structural representation of a relative position between a first coil and a second coil in an embodiment of the present application; and Fig. Figure 26 shows a schematic structural representation of a main control circuit board in an embodiment of the present application. Detailed descriptions

[0017] 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 and do not, however, limit its scope. Furthermore, the following embodiments represent only some, not all, embodiments of the present application. All other embodiments that are accessible to a person skilled in the art without inventive step are within the scope of protection of the application.

[0018] 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.

[0019] 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; that is, it can simply be considered that the aforementioned ear opening lies below the cavum conchae 102.

[0020] Furthermore, it is anticipated that different users may exhibit individual variations, resulting in different ear shapes, sizes, and other dimensions. To simplify the description and reduce (or even eliminate) individual variations among different users, a simulator with the head and (left and right) ear, such as the GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series, or B&K 5128 series, can be manufactured based on the ANSI: S3.36, S3.25, and IEC: 60318-7 standards to represent the scenarios of most users when wearing the earphone 10. Using GRAS KEMAR as an example, the ear simulator can be one of the following types: GRAS 45AC, GRAS 45BC, GRAS 45CC or GRAS 43AG, etc. Using HEAD Acoustics as an example, the ear simulator can be one of the following types: HMS II.3, HMS II.3 LN or HMS II.3LN HEC, etc.Therefore, expressions such as "the user wears the earphone," "the earphone is in the worn state," and "in the worn state" in this application may 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 discrepancies between how different users wear the earphone and how the earphone is worn on the ear of the aforementioned simulator; however, these discrepancies should be accepted.

[0021] 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.

[0022] For example, in connection with the Fig. As can be seen from Figures 2 to 5, the earphone 10 can comprise a core module 11 and a hook structure 12 connected to the core module 11. In the worn state, the core module 11 is located in front of the ear, and the hook structure 12 is located at least partially behind the ear, 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, the core module 11 can be arranged so that it does not block the external auditory canal when worn, thus making the earphone 10 an "open-ear earphone." Due to individual variations among different users, the core module 11 could partially cover the external auditory canal without blocking it when the earphone 10 is worn.

[0023] 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 the resistance against 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 each clamp physiological body parts, such as the antihelix and the cavum conchae, on the front and back of the ear, respectively, to increase the resistance against 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.

[0024] For example, in connection with Fig. Figure 3 shows that, in the worn state, the free end FE of the core module 11 projects into the concha. The core module 11 and the hook structure 12 can be arranged such that they together clamp an ear area corresponding to the concha, both from the 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 in a thickness direction X. Alternatively, the free end FE rests against the concha in a length direction Y and width direction Z.

[0025] 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.

[0026] 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 X. The thickness direction X 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 respectively, 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.

[0027] 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 Y and a lateral direction Z, which are perpendicular to the thickness direction X and orthogonal to each other.The longitudinal direction Y can be defined as the direction in which the core module 11, when worn, extends towards or away from the back of the user's head. The lateral direction Z can be defined as the direction in which the core module 11, when worn, extends towards or away from the top of the user's head. To simplify the description, this embodiment is therefore described using the example of a rectangular core module 11 with rounded corners. The length of the core module 11 in the longitudinal direction Y can be greater than the width of the core module 11 in the lateral direction Z.

[0028] 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 Y 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.

[0029] 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 Y (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 X between the inner surface IS and the outer surface OS. This allows not only the core module 11 and the hook structure 12 to clamp the ear from both 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.

[0030] Furthermore, in connection with the Fig. 2, Fig. 4, Fig. 5 and Fig. As can be seen in Figure 9, the hook structure 12 can 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 located further away 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.

[0031] 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 of the ear, an underside LS facing the external auditory canal of the ear, 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 Y 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 X (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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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 Y, 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, passing through a point at the midpoint of the first reference line segment RL1 and parallel to the longitudinal direction Y, 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 Y, 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.

[0036] In some embodiments, a fifth reference line segment RL5 is located at the shortest distance in the longitudinal direction Y between the second section S2 and the rear RS, with the length of the fifth reference line segment RL5 being 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.

[0037] 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 Y 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 Y 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.

[0038] 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.

[0039] Furthermore, in connection with the Fig. As can be seen from Figures 7 to 9, the earphone 10 can comprise a main control circuit board 13 located in the core housing 111 and a battery 14 located at an end of the hook structure 12 further away 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 located 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.

[0040] 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 exists 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 connected to 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 concha 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.

[0041] 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.

[0042] 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.

[0043] 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 creates a cushioning effect 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 clamp an ear area corresponding to the concha of the ear, both from the front and back of the aforementioned ear area. This helps to improve the comfort of the earphone 10 when worn.

[0044] 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.

[0045] In some embodiments, it is provided that when viewed in the thickness direction X, the flexible insert block 1131 can be arranged in a U-shape.

[0046] 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.

[0047] 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 X, wherein, in the worn state, the inner core housing 1111 is closer to the ear than the outer core housing 1112. A 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, in conjunction with Fig. 11 can be seen that 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.

[0048] 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 housing 1112.

[0049] 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) technology. The touch pattern 1142 can either be formed on the outside of the outer core housing 1112 using laser direct structuring technology 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 or 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.

[0050] 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.

[0051] 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.

[0052] 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 X. 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 X. 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, in conjunction with the Fig. 11 and Fig. 9 shows that the flexible insert block 1131 is not only located on the outside of the second side wall 1116, but also partially on the outside of the top wall 1115.

[0053] Accordingly, the sound outlet opening 111a can be located on the bottom wall 1113. Of course, the sound outlet opening 111a can also be located either on one side of the first side wall 1114, which corresponds 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 located on the top wall 1115, and the through-holes for sound reception by the microphone 133 can also be located on the top wall 1115.

[0054] 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.

[0055] 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 top wall 1115 in the thickness direction X 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 caveum conchae via the flexible insert block 1131, which improves the comfort of the earphone 10 when worn.

[0056] 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 X; and that the loudspeaker 112 can partially overlap with the second partial side wall section 1118 in the thickness direction X. 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.

[0057] 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 a connection 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 advantageous for reducing the resistance of the loudspeaker diaphragm 112 during the vibration process. Furthermore, the pressure relief opening 111c can be oriented towards the top of the head when worn, thus advantageously preventing sound waves transmitted through 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.

[0058] 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 is more extensively connected to 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 opening for sound regulation 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 Y and thus prevent the sound waves emitted by the sound outlet opening 111a and the opening for sound regulation 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.

[0059] 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.

[0060] 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 a connection between the acoustic openings and the acoustic chamber 116, in order to facilitate communication between the acoustic chamber 116 and the external environment, i.e., 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.

[0061] 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 is in contact 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.

[0062] 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).

[0063] 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 X.

[0064] 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 include 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 pre-attached to the bottom of the recess 1119 using double-sided adhesive tape or an 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.

[0065] 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 soundproof grille 118 and the core housing 111 (e.g. side walls of the recess 1119), which contributes to further watertight sealing.

[0066] 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.

[0067] For example, in connection with the Fig. As can be seen from Figures 12 to 14, 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.

[0068] 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, the second annular support surface 1124 being arranged 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, together with the annular support platform 1122 and the core housing 111, forms a second adhesive slot 1172.The second adhesive slot 1172 contains a second adhesive for sealing an assembly gap between any two components of the carrier 115, the ring-shaped support platform 1122 and the core housing 111, in order to achieve a corresponding watertight seal.

[0069] 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.

[0070] 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.

[0071] For example, in connection with the Fig. As can be seen from Figures 15 to 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.

[0072] 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.

[0073] 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.

[0074] For example, in connection with the Fig. 7, Fig. 10 and Fig. As can be seen in Figure 16, 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 within each other 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 X. The second locking structures 1222 can be integrally formed on the inner core housing 1111, uniquely corresponding to the first locking structures 1221.

[0075] 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.

[0076] For example, in connection with the Fig. 16 and Fig. It is evident from Figure 15 that the adapter housing 122 can be pre-formed with a through-hole 1251, which is connected to the receiving chamber 124, wherein 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 piece 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.

[0077] 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.

[0078] Furthermore, it is provided that several electrode clamps151 may be provided as needed, for example for charging, testing, etc.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] For example, in connection with the Fig. As can be seen from Figures 15 to 17, 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 both can be visible on the same side of the adapter housing 122, so 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, which are 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, which is used to house the aforementioned electrode clamps and the aforementioned Hall sensor.

[0085] 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.

[0086] 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 connected to 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.

[0087] 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.

[0088] 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.

[0089] For example, in connection with the Fig. As can be seen from Figures 16 to 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 receiving chamber 124 and the through-holes 1251 and 1253, each of which is connected to the receiving 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. Accordingly, the electrode clamps 151 can be at least partially arranged in the through-holes 1251. The microphone 152 can be arranged in the receiving 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.

[0090] 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, which is further away 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] For example, in connection with the Fig. As can be seen from Figures 16 to 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] For example, in connection with the Fig. As can be seen from Figures 16 to 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 provide the base plate 171 with a supporting force 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 subjected to a uniform load. This contributes to a further improvement in the supporting effect of the support arrangement 17 on the electrode clamps 151.

[0104] For example, in connection with the Fig. As can be seen from Figures 16 to 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.

[0105] 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.

[0106] For example, in connection with the Fig. As can be seen from Figures 15 to 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 conductor 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.

[0107] 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.

[0108] 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 further 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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 also to support the loudspeaker 112 in its corresponding wearing position 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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 are connected to the receiving chamber 124, and the blind hole 1252 is not connected to the receiving chamber 124, in order to improve the water and dust tightness of the first housing.

[0119] 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.

[0120] In some embodiments, the housing arrangement is provided for in an earphone 10 and may include a third housing for receiving a loudspeaker 112, wherein the third housing is pluggably attached to the first housing. For the sake of simplicity, the third housing may be a core housing 111.

[0121] 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, each connected to 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 associated with the through-holes 1251 and 1253, respectively.This is advantageous not only for avoiding the separation of the electrode terminals 151 and the microphone 152 from the first housing, but also for increasing the water and dust resistance of the electrode terminals 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.

[0122] 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.

[0123] In some embodiments, it is provided that the support arrangement 17 can be designed as a one-piece molded component.

[0124] 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.

[0125] 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 in its corresponding wearing position 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.

[0126] For example, in connection with the Fig. 19, Fig. 4 and Fig. It is evident from Figure 3 that 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 can be located in front of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. In the worn state, the core module 11 can have, in a thickness direction X, an inner surface IS facing the ear and an outer surface OS facing away from the ear. The thickness direction X is defined as the direction in which the core module 11 extends towards or away from the ear when worn. Furthermore, it is provided that, when not worn, the hook structure 12 extends in the thickness direction X first towards one side of the inner surface IS facing away from the outer surface OS and then towards the other side of the inner surface IS facing the outer surface OS.Because the hook structure 12 extends in the thickness direction X first towards the side of the inner IS facing away from the outer OS, a projection of part of the hook structure 12 can be offset in a direction perpendicular to the thickness direction X to a projection of the core module 11, so that in the worn state an upper ear base of the ear can exert less supporting force on the earphone 10 and this contributes to improving the wearing comfort of the earphone 10.The hook structure 12 then extends in the thickness direction X to the other side of the inner surface IS facing the outer surface OS, so that a projection of another part of the hook structure 12 and the projection of the core module 11 can overlap in the direction perpendicular to the thickness direction X. This allows all physiological parts of the ear, with the exception of the upper ear canal, to exert a greater supporting force on the earphone 10 when worn, thereby improving the earphone 10's stability. The aforementioned supporting force can include a clamping force of the earphone 10 on the ear and a frictional force between the earphone 10 and the ear (including the surrounding head area).Furthermore, in an embodiment in which a free end of the core module 11 projects into the caveum conchae of the ear in the worn state, this is also advantageous, for example, to allow the free end of the core module 11 to project into the caveum conchae in the worn state.

[0127] In some embodiments, the inner surface IS can be designed as a flat surface. In the unworn state, a plane in which the inner surface IS is located can intersect the hook structure 12.

[0128] In some embodiments, the clamping force exerted on the ear by the hook structure 12 and the core module 11 in the thickness direction X (for example, by the earphone 10 clamping the ear from the left and right of the head) can be considered part of the clamping force of the earphone 10 on the ear when worn. This clamping force can be measured using a force gauge. For example, this is done as follows: The earphone 10 is worn on the aforementioned simulator or on the ear of a user, i.e., it is in the worn state. Then, a force gauge (e.g., a Weidu WDF-10 digital push-pull force gauge, which will not be repeated hereafter) is attached to a side of the core module 11 facing away from the ear. The force gauge is then pulled, and the result is observed.When a side of the core module 11 facing the user's ear is precisely separated from the skin of the ear, the tensile force displayed on the force gauge is read, which can simply be considered the clamping force.

[0129] For example, in connection with the Fig. 19 and Fig. It is evident from Figure 9 that the hook structure 12 can comprise an elastic metal wire 121 connected to the core module 11, wherein the elastic metal wire 121 can be located at least partially behind the ear in the worn state, and wherein a plane in which the elastic metal wire 121 is located can intersect the inner surface IS in the unworn state. The elastic metal wire 121 can deform elastically by a certain amount in the thickness direction X relative to the core module 11, so that it can provide a corresponding clamping force. This allows a projection of part of the hook structure 12 to overlap with a projection of the core module 11 in a direction perpendicular to the thickness direction X, so that in the worn state the elastic metal wire 121, together with the core module 11, clamps and rests against the ear through elastic deformation. It should be noted that in Fig. 19 structural components, such as the elastic metal wire 121, the adapter housing 122 and the cover 1231, which are in Fig. Figure 9 is not visible when the hook structure 12 includes a coating, such as a flexible coating 128. In some embodiments, it is naturally provided that the hook structure 12 need not include the elastic metal wire 121, for example by using a hard plastic part instead of the elastic metal wire 121, and by designing the deformability of the hook structure 12 in different directions through the material, length, and cross-sectional dimensions, etc., of the hard plastic part, which will not be repeated here.

[0130] In some embodiments, it is provided that in the unsupported state, an angle exists between the plane in which the elastic metal wire 121 is located and the inner surface IS, for example the angle shown in Fig. The angle θ formed by a central dividing line ML and the inner surface IS can exist, with this aforementioned angle being between 15° and 30°. If this aforementioned angle is too small, insufficient clamping force of the earphone 10 on the ear can easily lead to instability and uncomfortable wear. If this aforementioned angle is too large, excessive clamping force of the earphone 10 on the ear can easily lead to discomfort and uncomfortable wear. Furthermore, the aforementioned central dividing line is provided for to be the axis of the elastic metal wire 121.

[0131] In some embodiments, the elastic metal wire 121 is provided to have a diameter between 0.6 mm and 0.8 mm. If this diameter is too small, the elastic metal wire 121 may struggle to provide sufficient clamping force, resulting in inadequate structural strength. Conversely, if the diameter is too large, the elastic metal wire 121 may struggle to deform elastically, resulting in excessive clamping force.

[0132] For example, in connection with the Fig. 19, Fig. 9 and Fig. It is evident from Figure 7 that the hook structure 12 can comprise an adapter housing 122 that connects the elastic metal wire 121 to the core module 11, wherein the adapter housing 122 can be located at least partially in front of the ear when worn, and wherein the adapter housing 122 extends in the thickness direction X towards a side of the inner surface IS facing away from the outer surface OS. This allows a projection of part of the hook structure 12 to be offset from a projection of the core module 11 in a direction perpendicular to the thickness direction X, so that in the worn state the upper ear can exert less supporting force on the earphone 10. It should be noted that the Fig. 9 adapter housings shown 122 in Fig. 19 is not visible if the hook structure 12 includes a coating, such as a flexible coating 128.

[0133] For example, in connection with the Fig. 19 and Fig. As can be seen in Figure 9, the hook structure 12 can comprise a battery housing 123, which is connected to an end of the elastic metal wire 121 located further away from the core module 11, wherein a battery 14 coupled to the core module 11 is arranged in the battery housing 123, and wherein, in the unworn state, the battery housing 123 can be located at least partially between the inner surface IS and the outer surface OS in the thickness direction X. In the worn state, the battery housing 123 can come into contact with the back of the ear and / or the head.

[0134] For example, in connection with the Fig. 19 and Fig. 2. It is evident that the core module 11 can have a longitudinal direction Y and a lateral direction Z, which are perpendicular to the thickness direction X and orthogonal to each other, wherein the length of the core module 11 in the longitudinal direction Y can be greater than the width of the core module 11 in the lateral direction Z. In the worn state, the core module 11 can have, in the lateral direction Z, an upper surface US facing away from the external auditory canal of the ear, an underside LS facing the external auditory canal of the ear, and a back surface RS connecting the upper surface US with the underside LS, wherein, in the worn state, the back surface RS is located at an end that points towards the back of the head in the longitudinal direction Y. Furthermore, it is provided that a first intersection point O1 with a mean dividing line ML of an orthogonal projection of the hook structure 12 onto a reference plane perpendicular to the lateral direction Z (e.g., the XY plane in Figure 1) is defined. Fig. 19) and an orthogonal projection of the inner surface IS onto the same reference plane can be formed, and a second intersection point O2 can be formed by the mean dividing line ML and an orthogonal projection of the back surface RS onto the same reference plane. The mean dividing line ML can pass through the geometric center of a cross-section at any point of the hook structure 12; for example, the mean dividing line ML is the axis of the elastic metal wire 121. This allows an orthogonal projection of the hook structure 12 onto the top surface US in the width direction Z to occur when an orthogonal projection of the core module 11 onto a reference plane perpendicular to the thickness direction X represents a non-circular structure, such as a rectangle with rounded corners. It should be noted that the parts of the inner surface IS and the back surface RS hidden by the hook structure 12 in Fig. 19 are represented by dashed lines because the core module 11 and the hook structure 12 partially overlap in the width direction.

[0135] In some embodiments, a first reference line segment O1O2 is formed by connecting the first intersection point O1 and the second intersection point O2. This first reference line segment O1O2 can have a first component in the longitudinal direction Y and a second component in the thickness direction Z. The ratio of the aforementioned first component to the length of the core module 11 in the longitudinal direction Y can be between 0.12 and 0.19, and the ratio of the aforementioned second component to the thickness of the core module 11 in the thickness direction X can be between 0.1 and 0.16. This allows for a suitable angle, for example, an angle θ between 15° and 30°, between the hook structure 12 and the inner surface IS, so that the earphone 10 exerts a suitable clamping force on the ear.

[0136] In some embodiments, a second reference line segment O1O3 is formed by connecting a point O3 on the central dividing line ML, which is furthest from the inner surface IS in the thickness direction X, with the first intersection point O1. This second reference line segment O1O3 may have a third component in the longitudinal direction Y and a fourth component in the thickness direction X. The ratio of the aforementioned third component to the length of the core module 11 in the longitudinal direction Y can be between 0.43 and 0.66, and the ratio of the aforementioned fourth component to the thickness of the core module 11 in the thickness direction X can be between 0.26 and 0.4. This allows for a suitable angle, for example, an angle θ between 15° and 30°, between the hook structure 12 and the inner surface IS, so that the earphone 10 exerts a suitable clamping force on the ear.

[0137] For example, in connection with Fig. It is evident from Figure 3 that 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 can be located in front of the ear when worn, wherein a free end FE of the core module 11, which is not connected to the hook structure 12, can project into the concha of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. The core module 11 and the hook structure 12 can jointly clamp an area of ​​the ear corresponding to the concha with a specific clamping force from both the front and back of the ear area. If this clamping force is too small, the earphone 10 will easily become unstable. If this clamping force is too large, the earphone 10 will easily become uncomfortable to wear.

[0138] In some embodiments, the clamping force exerted on the ear by the hook structure 12 and the core module 11 in a direction perpendicular to the thickness direction X (for example, by the earphone 10 clamping the ear from the front and back of the head) can be considered part of the clamping force of the earphone 10 on the ear when worn. This clamping force can be measured using a force meter. For example, this is done as follows: The earphone 10 is worn on the aforementioned simulator or on the ear of a user, i.e., it is in the worn state. A force meter is then attached to an end of the hook structure 12 furthest from the core module 11. The force meter is then pulled, and the result is observed.When a side of the hook structure 12 facing the user's ear is precisely separated from the skin of the ear, the tensile force displayed on the force gauge is read, which can simply be regarded as the clamping force.

[0139] In some embodiments, it is provided that, in the unworn state, the deformability of the hook structure 12 relative to the core module 11 can be indicated by a suitable measurement method, thus characterizing the clamping force that the earphone 10 can exert on the ear. This previously mentioned measurement method is described below by way of example.

[0140] For example, in connection with the Fig. 20 and Fig. 4 shows that orthogonal projections of the hook structure 12 and the core module 11 onto a first reference plane perpendicular to the thickness direction X (e.g. YZ plane in Fig. 20) need not overlap with each other, the thickness direction X being defined as the direction in which the core module 11, in the worn state, extends towards or away from the ear to allow the earphone 10 to clamp the ear from the front and back of the aforementioned ear area. A first reference line segment RL1 of minimal length may be present between the orthogonal projections of the hook structure 12 and the core module 11. It should be noted that the orthogonal projection of the core module 11 onto a reference plane perpendicular to the thickness direction X may be a rectangle with rounded corners, an ellipse, a circle, or a square with rounded corners. Furthermore, it is provided that, with the core module 11 attached, the hook structure 12 may exhibit a tensile force between 0.6 N and 8 N after being held at a fixed measuring position P1 in one direction (e.g., as indicated by arrow F in Fig. (shown in Figure 20), which is parallel to the first reference line segment RL1 and further away from the core module 11, was moved 5 mm to 10 mm away from the core module 11. The fixed measuring position P1 can be defined such that it is in a longitudinal direction (e.g., as indicated by the arrow L in Figure 20). Fig. 9 shown, although this will not be repeated hereafter) the hook structure 12 a distance of 16 mm to 27 mm to a free end (e.g. as indicated by arrow P2 in Fig. (20 shown) the hook structure 12, which is not connected to the core module 11. Preferably, with the core module 11 attached, the hook structure 12 can exhibit a tensile force between 0.8 N and 5 N after being pulled away from the core module 11 by 5 mm to 10 mm at the fixed measuring position P1 in the direction parallel to the first reference line segment RL1 and further away from the core module 11.

[0141] Furthermore, it is provided that with the core module 11 attached, the hook structure 12 can exhibit a tensile force between 0.1 N and 1.96 N after being pulled away from the core module 11 by 1 mm to 5 mm at the fixed measuring position P1 in the direction that is parallel to the first reference line segment RL1 and further away from the core module 11.

[0142] In some embodiments, it is provided that the earphone 10 can be attached to a measuring platform in the unworn state, for example by attaching the core module 11 to a bracket of the measuring platform. The first reference line segment RL1 can be parallel to the horizontal plane, and the hook structure 12 can be in a suspended state. From this position, a force gauge 20 can be attached to the hook structure 12, for example by hooking or attaching a hook of the force gauge 20 to the fixed measuring position P1, whereupon the fixed measuring position P1 is then in Fig. The force gauge 20 is also represented as a straight line segment. A measurement operator can then manually pull the force gauge 20 slowly, for example, up to an offset value of d. During this process, the hook structure 12 deforms accordingly from its initial position L1 to a measurement position L2. Simultaneously, a tensile force F is recorded at this offset value. Starting from this point, multiple measurements are taken at the same fixed measurement position P1, meaning that the force gauge 20 assumes different offset values. The tensile forces F at the corresponding offset values ​​are recorded simultaneously. This indicates the deformability of the hook structure 12 relative to the core module 11, thus characterizing the clamping force that the earphone 10 can exert on the ear. Naturally, the force gauge 20 can also be integrated into the measurement platform.With the attached earphone 10, the measuring platform causes the hook structure 12 to be removed from the core module 11, i.e., the measurement is performed automatically.

[0143] In some embodiments, the core module 11 can be pressed onto a table edge in the unsupported state, with the hook structure 12 preferably in a suspended state. Similarly, the hook of the force gauge 20 can be hooked or attached to the fixed measuring position P1. The measurement can then be carried out as described above, although this will not be repeated here.

[0144] The following table illustrates the relationship between the tensile force F and the tensile distance d at various fixed measuring positions P1. The units given are N for the tensile force F and mm for the tensile distance d. Furthermore, Table #1, #2, and #3 indicate that the fixed measuring position P1 is located 16 mm, 21.5 mm, and 27 mm, respectively, along the length of the hook structure 12, from the free end of the hook structure 12 that is not connected to the core module 11. It should be noted that to reduce measurement errors, each tensile force F can be averaged after several measurements, for example, after three measurements. d = 1 mm d = 3 mm d = 5 mm d = 7 mm d = 10 mm #1 0,1 N 0,3 N 0,6 N 0,87 N 2,5 N #2 0,23 N 0,41 N 0,82 N 1,73 N 5 N #3 0,3 N 0,89 N 1,96 N 3,82 N 8 N

[0145] In some embodiments, the length of the first reference line segment RL1 can be between 2 mm and 3 mm. If the length of the first reference line segment RL1 is too short, this can easily lead to the earphone 10 being uncomfortable to wear. If the length of the first reference line segment RL1 is too long, this can easily lead to the earphone 10 being unstable.

[0146] In some embodiments, the distance between the fixed measuring position P1 and the first reference line segment RL1 is less than or equal to 1 mm. This allows the fixed measuring position P1 to be located as close as possible to a predetermined position of the hook structure 12 that comes into contact with the ear.

[0147] In some embodiments, the core module 11 can have a longitudinal direction Y and a lateral direction Z that are perpendicular to the thickness direction X and orthogonal to each other, wherein the length of the core module 11 in the longitudinal direction Y can be greater than the width of the core module 11 in the lateral direction Z. In conjunction with the Fig. 21 and Fig. 20 shows that an orthogonal projection of the free end FE of the core module 11 onto a second reference plane perpendicular to the length direction Y (e.g. XZ plane in Fig. 21) has a geometric center GC, which is, for example, the center of a circle of the circumcircle of the aforementioned orthogonal projection. The distance between the fixed measurement position P1 and an extension line passing through the geometric center GC and parallel to the first reference line segment RL1 can be less than or equal to 1 mm. This allows the fixed measurement position P1 to be as close as possible to a predetermined position of the hook structure 12 that comes into contact with the ear. For example, it is provided that the core module 11, when worn, has, in the thickness direction X, an inner surface IS facing the ear and an outer surface OS facing away from the ear, and in the width direction Z, a top surface US facing away from the external auditory canal and a bottom surface LS facing towards the external auditory canal.Furthermore, the inside IS, the outside OS, the top US and the bottom LS form a geometric image on the second reference plane, with the geometric center GC being defined as the center of a circle of a circumcircle of the previously mentioned geometric image.

[0148] For example, in connection with Fig. It is evident from Figure 20 that the core module 11 can have a longitudinal direction Y and a lateral direction Z, which are perpendicular to the thickness direction X and orthogonal to each other, wherein the length of the core module 11 in the longitudinal direction Y can be greater than the width of the core module 11 in the lateral direction Z. In the worn state, the core module 11 can have, in the lateral direction Z, an upper surface US facing away from the external auditory canal of the ear and a lower surface LS facing the external auditory canal of the ear. Furthermore, it is provided that a second reference line segment RL2, which is parallel to the lateral direction Z and is the longest, can be present between the orthogonal projections of the hook structure 12 and the core module 11, wherein the length of the second reference line segment RL2 can be between 13 mm and 20 mm.If the length of the second reference line segment RL2 is too short, the free end FE of the core module 11 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 second reference line segment RL2 is too long, the free end FE may not be able to protrude into the concha, and the external auditory canal may be obstructed too much by the core module 11. In other words, this design ensures both that the free end FE of the core module 11 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.

[0149] Furthermore, it is provided that the direction in which the first reference line segment RL1 lies can be parallel to the longitudinal direction Y. In other words, if an orthogonal projection of the core module 11 onto a reference plane perpendicular to the thickness direction X is rectangular with rounded corners, the distance between the orthogonal projection of the hook structure 12 and the orthogonal projection of the core module 11 in the longitudinal direction Y is minimal.

[0150] In some embodiments, a point P3, where the second reference line segment RL2 intersects the orthogonal projection of the core module 11, is defined as the starting point of the second reference line segment RL2, and a point P4, where the second reference line segment RL2 intersects the orthogonal projection of the hook structure 12, is defined as the endpoint of the second reference line segment RL2. A third reference line segment RL3, passing through a point on the quarter of the second reference line segment RL2 and parallel to the longitudinal direction Y, intersects the hook structure 12 at a first intersection point P5 and a second intersection point P6, the first intersection point P5 being closer to the core module 11 in the longitudinal direction of the hook structure 12 than the second intersection point P6.Furthermore, it is provided that the distance between the first intersection point P5 and the starting point of the second reference line segment RL2 can be between 9 mm and 15 mm, and that the distance between the second intersection point P6 and the starting point of the second reference line segment RL2 can be between 12 mm and 19 mm. This ensures that the hook structure 12 and the core module 11 exert a suitable clamping force on the ear when the free end FE of the core module 11 projects into the cavum conchae and there is a suitable distance between the sound outlet opening 111a on the core module 11 and the external auditory canal.

[0151] For example, in connection with the Fig. 20 and Fig. As can be seen in Figure 9, the hook structure 12 can 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 located further away from the core module 11, with a battery 14 coupled to the core module 11 being arranged in the battery housing 123. The extension line of the first reference line segment RL1 can pass through the battery housing 123. Because a portion of the hook structure 12 corresponding to the battery housing 123 is thicker than a portion corresponding to the elastic metal wire 121, the hook structure 12, together with the core module 11, clamps the ear through the battery housing 123, thus improving the wearing comfort of the earphone 10.The elastic metal wire 121 can deform elastically by a certain amount in a direction perpendicular to the thickness direction X relative to the core module 11, so that it can provide a corresponding clamping force. It should be noted that in . Fig. 20 structural components, such as the elastic metal wire 121, the adapter housing 122 and the cover 1231, which are in Fig. 9 are shown, but are not visible if the hook structure 12 includes a coating, such as a flexible coating 128.

[0152] In some embodiments, the battery housing 123 may comprise a cover 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the cover 1231, the battery compartment 1232 forming a chamber structure with the cover 1231 for receiving the battery 14. The hook structure 12 may comprise a flexible coating 128 that envelops at least the elastic metal wire 121 and the cover 1231, the hardness of the flexible coating 128 being lower than the hardness of the cover 1231. Furthermore, the extension line of the first reference line segment RL1 may pass through a section of the flexible coating 128 that overlaps the cover 1231. This causes the hook structure 12 to clamp further over the flexible coating 128 on the lid 1231 together with the core module 11 around the ear, which contributes to a further improvement in the wearing comfort of the earphone 10.

[0153] In some embodiments, the battery compartment 1232 may be open at one end in the longitudinal direction of the hook structure 12, with the cover 1231 being partially embedded in the open end of the battery compartment 1232. The area of ​​the outer surface of the cover 1231 on a reference section perpendicular to the longitudinal direction of the hook structure 12 may be smaller than the area of ​​the outer surface of the battery compartment 1232 on the same reference section. That is, the outer diameter of the cover 1231 may be smaller than the outer diameter of the battery compartment 1232. Furthermore, the flexible coating 128 does not need to completely enclose the battery compartment 1232, and its outer surface transitions smoothly into the outer surface of the battery compartment 1232 to improve the optical quality of the earphone 10 when not in use.The fixed measuring position P1 can be located at the interface between the flexible coating 128 and the battery compartment 1232. This allows the fixed measuring position P1 to be as close as possible to a predetermined position of the hook structure 12 that comes into contact with the ear.

[0154] For example, in connection with the Fig. 3 and Fig. It is evident from Figure 9 that the earphone 10 can comprise a core module 11 and a hook structure 12 connected to the core module 11, wherein the hook structure 12 can include a battery housing 123, and wherein a battery 14 coupled to the core module 11 is arranged in the battery housing 123. The core module 11 can be located in front of the ear when worn, with a free end FE of the core module 11, which is not connected to the hook structure 12, projecting into the concha of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. Furthermore, it is provided that the core module 11 and the battery housing 123 can jointly clamp an ear area corresponding to the concha from both the front and back of the ear area to enable the earphone 10 to be worn stably and comfortably on the ear.The battery housing 123 can also come into contact with the scalp peripherally around the ear, which helps to increase the contact area between the battery housing 123 and the user's skin. This allows the user to feel that they are wearing the earbud 10 while maintaining a stable and comfortable fit, providing a sense of security and enhancing the wearing experience. Furthermore, by increasing the contact area between the earbud 10 and the user's skin, this also helps to reduce the risk of the earbud 10 slipping off the ear when the user lowers, raises, or shakes their head.

[0155] In some embodiments, it is provided that the largest area of ​​the outer surface of the battery housing 123 is located on the reference section perpendicular to the longitudinal direction of the hook structure 12 between 60 mm 2 and 100 mm 2This can amount to... If this previously mentioned largest area is too small, it can easily lead to the battery housing 123 having difficulty making contact with the scalp peripherally around the ear, and the battery capacity 14 being insufficient, making it difficult to meet the operating time requirements of the earphone 10. If this previously mentioned largest area is too large, it can easily lead to the battery housing 123 being too visible from the front of the ear, which in turn impairs the visual quality of the earphone 10 when worn.

[0156] For example, in connection with Fig. As can be seen in Figure 9, the battery housing 123 can comprise a cover 1231 and a battery compartment 1232 connected to the cover 1231, wherein the battery compartment 1232 can be open at one end in the longitudinal direction of the hook structure 12, and wherein the cover 1231 can be partially embedded in the open end of the battery compartment 1232 to form a chamber structure for receiving the battery 14. The area of ​​the outer surface of the cover 1231 gradually increases in the longitudinal direction of the hook structure 12 and in a positive direction towards the battery compartment 1232 on a reference section perpendicular to the longitudinal direction of the hook structure 12. That is, the hook structure 12 can be configured as a tapered structure at the cover 1231, which helps to reduce the difference in the outer diameter of the battery compartment 1232 from that of another part of the hook structure 12 (e.g.,(of the elastic metal wire 121) so that the hook structure 12 is smoother and more uniform in its overall appearance. Furthermore, it is provided that the cover 1231 can come into contact with the aforementioned ear area to clamp the ear to the core module 11, and that the battery compartment 1232 can come into contact with the scalp peripherally around the ear to increase the contact area between the battery housing 123 and the user's skin. In other words, different parts of the battery housing 123 come into contact with the skin at different physiological locations.

[0157] In some embodiments, the contact area between the cover 1231 and the scalp peripherally around the ear can be smaller than the contact area between the battery compartment 1232 and the scalp peripherally around the ear. This means that when the ear is clamped by the cover 1231 and the core module 11, the cover 1231 does not need to rely excessively on the contact between the battery housing 123 and the scalp peripherally around the ear. In other words, different parts of the battery housing 123 can serve different design purposes. Therefore, the cover 1231 does not need to come into contact with the scalp peripherally around the ear.

[0158] In some embodiments, the hook structure 12 may comprise an elastic metal wire 121 connecting the core module 11 to the cover 1231, as well as a flexible coating 128 that encases at least the elastic metal wire 121 and the cover 1231. The cover 1231 can make contact with the ear area via the flexible coating 128 to improve the wearing comfort of the earphone 10. The flexible coating 128 does not need to encase the battery compartment 1232, which helps reduce the risk of the hook structure 12 being excessively exposed at the front of the ear due to its thickness at the battery compartment 1232. This improves the optical quality of the earphone 10 when worn.Furthermore, it is provided that the outer surface of the flexible coating 128 can seamlessly transition into the outer surface of the battery compartment 1232 in order to improve the optical quality of the earphone 10 in the unworn state.

[0159] In some embodiments, the core module 11, when worn, can have an inner surface IS facing the ear and an outer surface OS facing away from the ear in a thickness direction X, where the thickness direction X is defined as the direction in which the core module 11 extends towards or away from the ear when worn. In the unworn state, the battery housing 123 is located at least partially between the inner surface IS and the outer surface OS in the thickness direction X, so that the clamping force exerted on the ear by the earphone 10 acts mainly as positive pressure, which contributes to improving the wearing comfort of the earphone 10.Furthermore, it is provided that the core module 11 can have a longitudinal direction Y and a lateral direction Z that are perpendicular to the thickness direction X and orthogonal to each other, wherein the length of the core module 11 in the longitudinal direction Y can be greater than the width of the core module 11 in the lateral direction Z. An orthogonal projection of the cover 1231 in the longitudinal direction Y and an orthogonal projection of the core module 11 in the longitudinal direction Y can overlap at least partially. In addition, an orthogonal projection of the battery compartment 1232 in the longitudinal direction Y and an orthogonal projection of the core module 11 in the longitudinal direction Y can at least partially not overlap, in order to allow the hook structure 12 to clamp the ear primarily on the cover 1231 together with the core module 11.

[0160] For example, in connection with the Fig. 22, Fig. 9 and Fig. 3 shows that 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 can be located in front of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. Orthogonal projections of the hook structure 12 and the core module 11 onto a reference plane perpendicular to the thickness direction X (e.g., the YZ plane in Figure 3) must be shown. Fig. 22) do not overlap with each other. The thickness direction X is 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 hook structure 12 can comprise a battery housing 123 and a flexible coating 128, wherein a battery 14 coupled to the core module 11 is arranged in the battery housing 123, wherein the battery housing can comprise a cover 1231 and a battery compartment 1232 connected to the cover 1231, and wherein the flexible coating 128 can enclose the cover 1231. A first reference line segment RL1 of minimal length can be present between the orthogonal projections of the hook structure 12 and the core module 11. The point at which the first reference line segment RL1 intersects the orthogonal projection of the hook structure 12 may be located in a section of the flexible coating 128 that overlaps with the cover 1231.In other words, the hook structure 12 can come into contact with the back of the ear via the cover 1231 and the flexible coating 128 on it, and together with the core module 11, clamp the ear, thus improving the wearing comfort of the earphone 10. It should be noted that the orthogonal projection of the core module 11 onto a reference plane perpendicular to the thickness direction X can represent a rectangle with rounded corners, an ellipse, a circle, or a square with rounded corners.

[0161] In some embodiments, it is provided that in the worn state the clamping force exerted on the ear by the hook structure 12 and the core module 11 in the thickness direction X (for example, by the earphone 10 clamping the ear from the left and right of the head) can serve as part of the clamping force of the earphone 10 on the ear.

[0162] In some embodiments, it is provided that in the worn state the clamping force exerted on the ear by the hook structure 12 and the core module 11 in a direction perpendicular to the thickness direction X (for example, by the earphone 10 clamping the ear from the front and back of the head) can serve as part of the clamping force of the earphone 10 on the ear.

[0163] In some embodiments, it is provided that in the unworn state the earphone 10 is located on a reference plane perpendicular to the thickness direction X (e.g. YZ plane in Fig. 22) may have a second reference line RL2, which runs parallel to the first reference line segment RL1, wherein the second reference line RL2 intersects the orthogonal projection of the battery housing 123 and is furthest away from the first reference line segment RL1. From this, an edge of the orthogonal projection of the hook structure 12 on a side facing the core module 11 may have a maximum distance, such as the length of a third reference line segment RL3 in Fig. 22, to the second reference line RL2, whereby this previously mentioned maximum distance can be between 34 mm and 52 mm. If this maximum distance is too small, the capacity of the battery 14 may be insufficient, making it difficult to meet the operating time requirements of the earphone 10. If this previously mentioned maximum distance is too large, the hook structure 12 may be too visible from the front of the ear due to the excessively long battery housing 123, thus impairing the optical quality of the earphone 10 when worn. Furthermore, the hook structure 12 may interfere with any ear jewelry worn by the user on or near the earlobe (especially for female users), thus impairing usability.

[0164] In some embodiments, it is provided that in the worn state the distance (e.g. as by V1 in Fig. (3 shown) between the free end of the hook structure 12, which is not connected to the core module 11, and the upper earlobe can be between 37 mm and 56 mm along the vertical axis of the human body. If this distance is too small, the battery 14 will easily have insufficient capacity, making it difficult to meet the operating time requirements of the earphone 10. If this distance is too large, the hook structure 12 will not only be too visible from the front of the ear due to the excessive length of the battery housing 123, thus impairing the optical quality of the earphone 10 when worn, but the hook structure 12 will also easily interfere with any ear jewelry worn by the user on or near the earlobe (especially for female users), thus impairing usability.

[0165] In some embodiments, it is provided that in the worn state the distance (e.g. as by V2 in Fig. (3 shown) between the free end of the hook structure 12, which is not connected to the core module 11, and an edge of the earlobe of the ear in the vertical axis of the human body can be less than or equal to 10 mm. If this aforementioned distance is too large, it easily leads to the battery 14 having insufficient capacity, making it difficult to meet the operating time requirements of the earphone 10.

[0166] In some embodiments, the length of the battery compartment 1232 in the longitudinal direction of the hook structure 12 can be between 10 mm and 20 mm. This takes into account both the operating time and the optical quality of the earphone 10 when worn.

[0167] In some embodiments, the battery compartment 1232 can be designed as a hollow cylinder, and the area of ​​the outer surface of the battery compartment 1232 is measured on a reference section perpendicular to the longitudinal direction of the hook structure 12 between 60 mm 2 and 100 mm 2 This area can vary. If the aforementioned area is too small, the battery capacity 14 may be insufficient, making it difficult to meet the operating time requirements of the earphone 10. Conversely, if the aforementioned area is too large, the battery housing 123 may be too visible from the front of the ear, negatively impacting the appearance of the earphone 10 when worn.

[0168] For example, in connection with the Fig. 3 and Fig. It is evident that 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 can be located in front of the ear when worn, wherein a free end FE of the core module 11, which is not connected to the hook structure 12, can project into the concha of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. The core module 11 can have a thickness direction X, a length direction Y, and a width direction Z, which are orthogonal to each other. The thickness direction X is defined as the direction in which the core module 11 extends toward or away from the ear when worn. The length of the core module 11 in the length direction Y can be greater than the width of the core module 11 in the width direction Z. Furthermore, it is planned that the length of the core module 11 in the longitudinal direction Y (e.g.as through L in . Fig. (3 shown) can be between 22 mm and 35 mm. If the length of the core module 11 is too short, the free end FE of the core module 11 may have difficulty protruding into the concha and continuing to clamp the ear together with the hook structure 12. If the length of the core module 11 is too long, the free end FE of the core module 11 may also have difficulty protruding into the concha, or the wearing of the earphone 10 may even be impaired.Furthermore, it is provided that the hook structure 12 can have a transition section 12a connected to the core module 11, wherein the transition section 12a can be located in front of the ear in the worn state, and wherein the area of ​​the outer surface of the transition section 12a can gradually decrease on a reference section perpendicular to the longitudinal direction of the hook structure 12 in the longitudinal direction of the hook structure 12 as well as in a positive direction further away from the core module 11, i.e., the transition section 12a can be designed as a tapered structure, so that the earphone 10 is smoother and more uniform in its overall appearance.Based on this, when worn and viewed in the direction of the coronal axis of the human body, the connecting end CE of the core module 11, which is connected to the hook structure 12, is closer to the top of the user's head than the free end FE of the core module 11, which is not connected to the hook structure 12. The angle (e.g., as defined by θ in . Fig. (3 shown) the angle between the longitudinal direction Y and the direction of the sagittal axis of the human body can lie between 15° and 60°, so that the transition section 12a crosses a depression 109 between a helix and a tragus of the ear as much as possible. This is advantageous in reducing the risk of excessive interference of the transition section 12a with the user's skin and thus improving the wearing comfort of the earphone 10.

[0169] In some embodiments, the hook structure 12 and the core module 11 can be pluggably attached to each other in a direction perpendicular to the width direction Z, as for example in Fig. Figure 7 shows the following. Based on this, the length of the core module 11 in the longitudinal direction Y can be measured after the core module 11 has been released from the hook structure 12.

[0170] In some embodiments, the width of the core module 11 is provided for in the lateral direction Z (e.g. as defined by W in Fig. (3 shown) can be between 10 mm and 16 mm. If the width of the core module 11 is too small, this can easily lead to insufficient contact area between the core module 11 and the ear, resulting in discomfort. If the width of the core module 11 is too large, this can easily lead to the core module 11 covering too much of the external ear canal.

[0171] For example, in connection with Fig. 23 shows that between an edge of an orthogonal projection of the hook structure 12 onto a reference plane perpendicular to the thickness direction X (e.g. YZ plane in Fig. 23) On a side facing the core module 11 and an orthogonal projection of the core module 11 onto the same reference plane, a first reference line segment RL1 is present, parallel to the latitude direction Z and with the greatest length. It is provided that a point P1, at which the first reference line segment RL1 intersects the orthogonal projection of the core module 11, is defined as the starting point of the first reference line segment RL1, and that a point P2, at which the first reference line segment RL1 intersects the orthogonal projection of the hook structure 12, is defined as the endpoint of the first reference line segment RL1. Furthermore, it is provided that an orthogonal projection of the transition section 12a can have an inner edge IE and an outer edge OE, each showing a continuous arc-shaped transition, with the outer edge OE being farther away from the first reference line segment RL1 in the longitude Y direction than the inner edge IE.The total degree of curvature of the inner edge IE can be greater than the total degree of curvature of the outer edge OE, so that the transition section 12a is smoother and more uniform in its overall appearance.

[0172] In some embodiments, the orthogonal projection of the transition section 12a may include a second reference line segment RL2, a third reference line segment RL3, a fourth reference line segment RL4, and a fifth reference line segment RL5, arranged parallel to the longitudinal direction Y and spaced sequentially apart. The second reference line segment RL2, the third reference line segment RL3, the fourth reference line segment RL4, and the fifth reference line segment RL5 are successively located further and further away from the orthogonal projection of the core module 11 in the lateral direction Z. Furthermore, the start and end points of the second reference line segment RL2, the third reference line segment RL3, the fourth reference line segment RL4, and the fifth reference line segment RL5 are each located on the inner edge IE and the outer edge OE, respectively.The length of the second reference line segment RL2 can be between 5 mm and 8 mm, and an extension line of the second reference line segment RL2 passes through a point at one-eighth of the first reference line segment RL1. The length of the third reference line segment RL3 can be between 4 mm and 6.3 mm, and an extension line of the third reference line segment RL3 passes through a point at one-quarter of the first reference line segment RL1. The length of the fourth reference line segment RL4 can be between 3.5 mm and 5.4 mm, and an extension line of the fourth reference line segment RL4 passes through a point at three-eighths of the first reference line segment RL1. The length of the fifth reference line segment RL5 can be between 3 mm and 5 mm, and an extension line of the fifth reference line segment RL5 passes through a point at one-half of the first reference line segment RL1.

[0173] In some embodiments, 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 of the core module 11 may not protrude into the concha, and the sound outlet opening 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 protrude into the concha, and the external auditory canal may be obstructed too much by the core module 11.In other words, this allows both the free end FE of the core module 11 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.

[0174] In some embodiments, the hook structure 12 may comprise an adapter housing 122 connected to the core module 11 and an elastic metal wire 121 connected to the adapter housing 122, wherein the adapter housing 122 may be located at least partially in front of the ear and the elastic metal wire 121 may be located at least partially behind the ear in the worn state. In other words, a portion of the adapter housing 122 located in front of the ear in the worn state may be configured as part of the transition section 12a or as the entire transition section 12a. The core module 11, in the worn state, may have an inner surface IS facing the ear and an outer surface OS facing away from the ear in a thickness direction X.The area of ​​the outer surface of the adapter housing 122 on a reference section perpendicular to the longitudinal direction of the hook structure 12 can gradually decrease in the longitudinal direction of the hook structure 12 as well as in a positive direction further away from the core module 11, in order to allow the transition section 12a to be formed as a tapered structure.

[0175] Furthermore, the adapter housing 122 is designed to extend in the thickness direction X towards a side of the inner surface IS facing away from the outer surface OS. This allows a projection of part of the hook structure 12 to be offset from a projection of the core module 11 in a direction perpendicular to the thickness direction X, so that, when worn, the upper earlobe exerts less supporting force on the earphone 10. A plane containing the elastic metal wire 121 can intersect the inner surface IS when not worn, allowing a projection of part of the hook structure 12 to overlap with a projection of the core module 11 in a direction perpendicular to the thickness direction X. This ensures that, when worn, the elastic metal wire 121, through elastic deformation, clamps and rests against the ear together with the core module 11.

[0176] For example, in connection with the Fig. 7 and Fig. It is evident from Figure 3 that 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 can be located in front of the ear when worn, wherein a free end FE of the core module 11, which is not connected to the hook structure 12, can project into the concha of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. The core module 11, when worn, can have a first inner surface IS1 facing the ear and an outer surface OS facing away from the ear in a thickness direction X. The thickness direction X is defined as the direction in which the core module 11 extends towards or away from the ear when worn.The hook structure 12 can have a transition section 12a connected to the core module 11, wherein the transition section 12a can be located in front of the ear when worn and can have a second inner surface IS2 facing the ear in the thickness direction X when worn. Furthermore, it is provided that the first inner surface IS1 can at least partially cover the tragus of the ear when worn, and that the second inner surface IS2 can be bent in the thickness direction X relative to the first inner surface IS1 in a direction further away from the outer surface OS, for example by bending that part of the hook structure 12 which is located in front of the ear when worn relative to the core module 11. Even if the earphone 10 has to cross the tragus, this can create a space for receiving the tragus between the hook structure 12 and the core module 11, i.e., the earphone 10 can move out of the way of the tragus.This helps to reduce the risk of compression of the tragus by the earphone 10 and thus improve the comfort of the earphone 10 when worn.

[0177] In some embodiments, the angle between the second inner surface IS2 and the first inner surface IS1 can be between 119° and 170°. If this angle is too small, it easily leads to a violation of the original purpose of the invention, which is that the earphone 10 should avoid contact with the tragus. If this angle is too large, it easily leads to the earphone 10 not fitting as well against the user's skin when worn.

[0178] In some embodiments, the distance between an end of the second inner surface IS2 furthest from the core module 11 and the first inner surface IS1 in the thickness direction X can be between 1.6 mm and 2.4 mm. If this distance is too small, it easily violates the original purpose of the invention, which is that the earphone 10 should avoid contact with the tragus. If this distance is too large, it easily results in the earphone 10 not fitting as well against the user's skin when worn.

[0179] For example, the transition section 12a can comprise an adapter housing 122 connected to the core module 11, wherein the adapter housing 122 can be located at least partially in front of the ear when worn. In other words, a portion of the adapter housing 122 located in front of the ear when worn can be configured as part of the transition section 12a or as the entire transition section 12a. The adapter housing 122 can be designed as a tapered structure, for example, by gradually reducing the area of ​​the outer surface of the adapter housing 122 on a reference section perpendicular to the longitudinal direction of the hook structure 12, as well as in a positive direction further away from the core module 11. This allows the transition section 12a to be configured as a tapered structure, resulting in a smoother and more uniform overall appearance for the earphone 10.

[0180] Furthermore, it is provided that the adapter housing 122 can extend in the thickness direction X towards a side of the first inner surface IS1 facing away from the outer surface OS, in order to allow the earphone 10 to move away from the tragus when worn, and that in a direction perpendicular to the thickness direction X a projection of part of the hook structure 12 is offset to a projection of the core module 11, so that in the worn state the upper ear base of the ear can exert a less supporting force on the earphone 10.

[0181] In some embodiments, it is provided that in the unworn state the elastic metal wire 121 can pass through a plane in which the first inner side IS1 is located, in order to allow a projection of a part of the hook structure 12 to overlap with a projection of the core module 11 in a direction perpendicular to the thickness direction X, so that in the worn state the elastic metal wire 121, together with the core module 11, clamps the ear and rests against it by elastic deformation.

[0182] In some embodiments, it is provided that, in the unworn state, the plane in which the elastic metal wire 121 is located can intersect the first inner surface IS1. This allows a projection of part of the hook structure 12 to overlap with a projection of the core module 11 in a direction perpendicular to the thickness direction X. In the worn state, the elastic metal wire 121, through elastic deformation, clamps the ear together with the core module 11 and rests against it. The angle between the elastic metal wire 121 and the first inner surface IS1 in the unworn state can be between 15° and 30°.

[0183] In some embodiments, the core housing 111 can comprise an inner core housing 1111 and an outer core housing 1112 connected to the inner core housing 1111, which are, for example, interlocked in the thickness direction X. The inner core housing 1111 can be positioned closer to the ear than the outer core housing 1112 when worn, and a sound outlet opening 111a can be provided on the inner core housing 1111. Furthermore, at least one of the inner core housing 1111 and the outer core housing 1112 can be pluggably attached to the adapter housing 122, for example, by pluggably attaching the inner core housing 1111 to the adapter housing 122, as shown in Fig. 7 shown.

[0184] In some embodiments, the core housing 111 can comprise an inner core housing 1111 and an outer core housing 1112 connected to the inner core housing 1111, which are, for example, interlocked in the thickness direction X. The inner core housing 1111 can be positioned closer to the ear than the outer core housing 1112 when worn, and a sound outlet opening 111a can be provided on the inner core housing 1111. Furthermore, one of the inner core housings 1111 and the outer core housing 1112 can be formed as a single component with the adapter housing 122, with the other being rigidly connected to this aforementioned single component.Based on this, for this previously mentioned one-piece component, an area to which a loudspeaker 112 is assigned can simply be considered the inner core housing 1111, and an area in which a tapered structure is provided, or an area to which an electronic element 15 is assigned, can simply be considered the adapter housing 122.

[0185] For example, in connection with the Fig. 7 and Fig. 3. It is evident that 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 can be located in front of the ear when worn, and wherein the hook structure 12 can be located at least partially behind the ear when worn. The core module 11 can comprise a core housing 111 and a loudspeaker 112 arranged in the core housing 111, wherein the hook structure 12 can comprise an adapter housing 122 connected to the core housing 111, and wherein the adapter housing 122 can be located at least partially in front of the ear when worn. Furthermore, in connection with the Fig. 24, Fig. 15 and Fig. As can be seen in Figure 16, the adapter housing 122 can be configured with a receiving chamber 124 and through-holes 1251 that connect to the receiving chamber 124, wherein the earphone 10 can include electrode clamps 151 that are at least partially located in the through-holes 1251. Since the receiving chamber 124 is formed in the adapter housing 122, some components can be accommodated in this receiving chamber 124, which contributes to saving space in the core module 11 in order to allow for the largest possible volume for the loudspeaker 112. Furthermore, the electrode clamps 151 can be arranged on the adapter housing 122, which helps to shorten the distance between the electrode clamps 151 and the loudspeaker 112 in the longitudinal direction of the hook structure 12.This allows the magnetic attraction between a magnetic circuit system (which includes a magnet) of the loudspeaker 112 and a magnetic structure in a charging box to be exploited, so that the electrode terminals 151 come into more reliable contact with electrode terminals in the charging box.

[0186] In some embodiments, it is provided that the electrode clamps 151 can be oriented towards the front of the ear in the worn state, so that the electrode clamps 151 can be closer to the loudspeaker 112, which helps to further shorten the distance between the electrode clamps 151 and the loudspeaker 112 in the longitudinal direction of the hook structure 12.

[0187] In some embodiments, the electrode clamps 151 may comprise a positive charging clamp 1514 and a negative charging clamp 1515, which are spaced apart from each other, wherein the positive charging clamp 1514 and the negative charging clamp 1515 may each be arranged accordingly in their respective through-holes 1251 to facilitate the charging of the earphone 10 by the electrode clamps 151.

[0188] In some embodiments, the electrode terminals 151 may include a communication terminal 1516, which is arranged at a distance from the positive charging terminal 1514 and the negative charging terminal 1515. The communication terminal 1516 may be arranged in the respective through-hole 1251 to enable a simplified communication connection between the earphone 10 and a charger, such as a charging case.

[0189] For example, in connection with Fig. Figure 24 shows that the distance between the positive charging terminal 1514 and the negative charging terminal 1515 can be greater than the distance between the positive charging terminal 1514 and the communication terminal 1516, and that the distance between the positive charging terminal 1514 and the communication terminal 1516 can be greater than the distance between the communication terminal 1516 and the negative charging terminal 1515. The potential of the positive charging terminal 1514 is usually higher than the potential of the communication terminal 1516, so the communication terminal 1516 is usually more susceptible to damage from high voltages.To avoid or reduce the likelihood of damage to the communication terminal 1516 due to a conductive connection between the positive charging terminal 1514 and the communication terminal 1516, especially in confined spaces, the distance between the positive charging terminal 1514 and the communication terminal 1516 is greater than the distance between the communication terminal 1516 and the negative charging terminal 1515. Furthermore, to avoid or reduce the likelihood of damage to the earphone 10 due to a short circuit between the positive charging terminal 1514 and the negative charging terminal 1515, the distance between the positive charging terminal 1514 and the negative charging terminal 1515 can also be greater than the distance between the communication terminal 1516 and the negative charging terminal 1515.Furthermore, in some embodiments, the distance between the positive charging terminal 1514 and the negative charging terminal 1515 is greater than the distance between the positive charging terminal 1514 and the communication terminal 1516, in order to arrange the electrode terminals 151 as compactly as possible. This aims to reduce the space required for the electrode terminals 151, while simultaneously reducing the risk of a short circuit between the electrode terminals 151 and minimizing damage to the earphone 10.

[0190] 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 1514, the negative charging terminal 1515 and the communication terminal 1516 can form a non-equilateral triangle.

[0191] In some embodiments, when viewed in the direction of extension of the electrode terminals 151, the positive charging terminal 1514, the communication terminal 1516, and the negative charging terminal 1515 can be spaced apart from one another in a line segment, such as sequentially in a straight line segment. When viewed in the direction of extension of the electrode terminals 151, the magnet 127 and the core module 11 can each be located on either side of this straight line segment. Thus, the magnetic circuit system of the loudspeaker 112 forms a first magnet pair with a permanent magnet or a soft magnet in the charging case, and the magnet 127 forms a second magnet pair with another permanent magnet or another soft magnet in the charging case when the earphone 10 is inserted into the charging case.This places the electrode clamps 151 between the first and second magnet pairs, ensuring more reliable contact with the electrode clamps in the charging box. Furthermore, the outer surface area of ​​the adapter housing 122 can gradually decrease along the length of the hook structure 12, as well as in a positive direction further away from the core module 11, on a reference section perpendicular to the longitudinal direction of the hook structure 12. This means the adapter housing 122 can be designed as a tapered structure, allowing the transition section 12a of the hook structure 12 to also be tapered, resulting in a smoother and more uniform appearance for the earphone 10. The first, second, and third distances between the center of the magnet 127 and the center of the positive charging clamp 1514, the communication clamp 1516, and the communication clamp 1516, respectively, are defined.The negative charging terminal 1515, on the other hand, is present, with the third distance being larger than both the first and second distances. This is advantageous in reducing the risk of insufficient wall thickness of the adapter housing 122 due to an insufficient distance between the magnet 127 and the negative charging terminal 1515, and thus increasing the structural strength of the adapter housing 122.

[0192] For example, in connection with the Fig. 7 and Fig. 24 shows that the core housing 111, in its worn state, can have a first inner surface IS1 facing the ear and an outer surface OS facing away from the ear in a thickness direction X, wherein the thickness direction X is defined as the direction in which the core module 11 extends towards or away from the ear in its worn state, and wherein the adapter housing 122, in its worn state, can have a second inner surface facing the ear in the thickness direction X (e.g., the second inner surface IS2 of the transition section 12a). The second inner surface IS2 is bendable in the thickness direction X relative to the first inner surface IS1 in a direction further away from the outer surface OS; for example, the adapter housing 122 is bent relative to the core module 11.Furthermore, it is provided that the electrode terminals 151 on the second inner side IS2 are exposed to facilitate contact with the electrode terminals in the charging box, and that the extension direction of the electrode terminals 151 corresponds to the winding direction (e.g. as defined by C1 in . Fig. 25) intersects a coil (i.e., the voice coil mentioned above) of the loudspeaker 112. This allows the attraction direction of the first magnet pair to intersect the attraction direction of the second magnet pair, which helps to reduce the risk of the earphone 10 wobbling in the charging case, so that the electrode clips 151 make more reliable contact with the electrode clips in the charging case.

[0193] Furthermore, it is provided that the core module 11 can comprise a main control circuit board 13, which is arranged in the core housing 111 and coupled to the loudspeaker 112, wherein the main control circuit board 13 is arranged stacked on top of the loudspeaker 112 in the thickness direction X and is located on a side of the loudspeaker 112 facing the outside OS. This makes it advantageous, with limited dimensions of the core housing 111, to increase the area of ​​the loudspeaker 112 on a reference section perpendicular to the thickness direction X and to reduce the distance between the loudspeaker 112 and the permanent magnet or the soft magnet in the charging box. This increases the attractive force of the first magnet pair and achieves more reliable contact between the electrode terminals 151 and the electrode terminals in the charging box.

[0194] Based on the above relevant descriptions, the earphone 10 can comprise the positive charging terminal 1514, the negative charging terminal 1515, and the communication terminal 1516, which are spaced apart from one another. When worn, the positive charging terminal 1514, the negative charging terminal 1515, and the communication terminal 1516 can be located on the same side of the ear, for example, all in front of the ear. It is provided that the distance between the positive charging terminal 1514 and the negative charging terminal 1515 can be greater than the distance between the positive charging terminal 1514 and the communication terminal 1516, and that the distance between the positive charging terminal 1514 and the communication terminal 1516 can be greater than the distance between the communication terminal 1516 and the negative charging terminal 1515.The potential of the positive charging terminal 1514 is generally higher than the potential of the communication terminal 1516, so the communication terminal 1516 is generally more susceptible to damage from high voltages. To avoid or reduce the likelihood of damage to the communication terminal 1516 from a conductive connection between the positive charging terminal 1514 and the communication terminal 1516, especially in confined spaces, the distance between the positive charging terminal 1514 and the communication terminal 1516 is greater than the distance between the communication terminal 1516 and the negative charging terminal 1515.Furthermore, to avoid or reduce the likelihood of damage to the earphone 10 due to a short circuit between the positive charging terminal 1514 and the negative charging terminal 1515, the distance between the positive charging terminal 1514 and the negative charging terminal 1515 can also be greater than the distance between the communication terminal 1516 and the negative charging terminal 1515. In some embodiments, the distance between the positive charging terminal 1514 and the negative charging terminal 1515 is also greater than the distance between the positive charging terminal 1514 and the communication terminal 1516, in order to arrange the electrode terminals 151 as compactly as possible. This aims to reduce the space required for the electrode terminals 151, thereby reducing the risk of a short circuit between them and minimizing damage to the earphone 10.

[0195] In some embodiments, it is provided that at least one of the positive charging terminal 1514, the negative charging terminal 1515 and the communication terminal 1516 is arranged on the adapter housing 122, for example by arranging all three on the adapter housing 122 or, for example, all three on the battery housing 123.

[0196] In some embodiments, it is provided that at least one of the positive charging terminal 1514, the negative charging terminal 1515 and the communication terminal 1516 is arranged on the core housing 111, for example by arranging any one of them on the core housing 111 and the other two remaining ones on the adapter housing 122.

[0197] For example, in connection with the Fig. 25 and Fig. As can be seen from Figure 7, the core module 11 comprises a core housing 111 and a loudspeaker 112, as well as a main control circuit board 13, which are arranged in the core housing 111, with the loudspeaker 112 being electrically connected to the main control circuit board 13. The main control circuit board 13 is used for signal processing and transmits the processed electrical signals to the loudspeaker 112. The loudspeaker 112 is used to convert the received electrical signals into mechanical vibrations. The loudspeaker 112 may include a first coil 1125 (i.e., the voice coil mentioned above) coupled to the main control circuit board 13, the first coil 1125 being able to project into the magnetic circuit system of the loudspeaker 112. A second coil 134 may be arranged on the main control circuit board 13. Furthermore, it is provided that the winding axis of the second coil 134 (e.g., as defined by C2 in Figure 7) is located at the core housing 111. Fig. 25 shown) the winding axis of the first coil 1125 (e.g. as defined by C1 in Fig. (25 shown) can cut. This makes it advantageous to weaken mutual inductive coupling between the second coil 134 and the first coil 1125 and thus reduce mutual interference between the two coils, for example to reduce the risk that current changes in the second coil 134 cause interference noises such as "rustling" or „Q "whirring" in the loudspeaker 112. Furthermore, the reduced mutual inductive coupling between the first coil 1125 and the second coil 134 allows the main control circuit board 13 to be located closer to the loudspeaker 112, contributing to a more compact design of the core module 11.

[0198] In some embodiments, the main control circuit board 13 and the loudspeaker 112 can be stacked one above the other along the winding axis of the first coil 1125. This makes it advantageous, for a given core housing volume 111, to arrange a larger loudspeaker 112 within the core housing 111 to increase the sensitivity and maximum volume of the earphone 10. The winding axis of the second coil 134 can be arranged orthogonally to the winding axis of the first coil 1125, for example, by having the winding axis of the second coil 134 run parallel to the longitudinal direction Y and the winding axis of the first coil 1125 run parallel to the thickness direction X, in order to further weaken the mutual inductive coupling between the second coil 134 and the first coil 1125.Furthermore, it is provided that, due to the reduced mutual inductive coupling between the second coil 134 and the first coil 1125, the distance between the main control circuit board 13 and the loudspeaker 112 along the winding axis of the first coil 1125 can be further reduced. This contributes to a more compact arrangement of the core module 11 in the thickness direction X and reduces the volume of the core module 11. In some embodiments, the distance between the main control circuit board 13 and the loudspeaker 112 along the winding axis of the first coil 1125 can be less than or equal to 3 mm. The second coil 134 can be arranged on a side of the main control circuit board 13 facing away from the loudspeaker 112 or on a side facing the loudspeaker 112.For example, the second coil 134 is arranged on the side of the main control circuit board 13 facing away from the loudspeaker 112, with the distance between the main control circuit board 13 and the loudspeaker 112 along the winding axis of the first coil 1125 being less than or equal to 1 mm. As another example, the second coil 134 is arranged on the other side of the main control circuit board 13 facing the loudspeaker 112, with the distance between the main control circuit board 13 and the loudspeaker 112 along the winding axis of the first coil 1125 being less than or equal to 2 mm.

[0199] In the present application, the core module 11 can comprise elements such as an inductor or a transmitting and receiving coil, wherein the inductor or this transmitting and receiving coil can comprise a second coil 134. In some embodiments, the core module 11 is provided to include a switching power supply, wherein the switching power supply can be used for voltage conversion, and wherein the switching power supply can be arranged on the main control circuit board 13 and electrically connected to the main control circuit board 13. The inductor of the switching power supply can be the second coil 134, which serves for energy storage, filtering, etc.In some embodiments, the core module 11 may include a communication device, wherein the communication device enables interaction between the earphone 10 and an end device such as a mobile phone or a computer, and wherein the communication device is arranged on the main control circuit board 13 and electrically connected to the main control circuit board 13. The communication device may include a transmit and receive coil to enable the transmission and reception of signals, wherein the transmit and receive coil of the communication device may be the second coil 134.

[0200] For example, in connection with the Fig. 26 and Fig.As can be seen from Figure 7, the main control circuit board 13 can comprise a base plate 135, metal conductors 136 formed on the base plate 135, and a load 137 arranged on the base plate 135. The base plate 135 can be electrically insulating, the metal conductors 136 can be printed onto the base plate 135 using techniques such as copper etching, and the load 137 can be soldered to the base plate 135 and connected to the metal conductors 136 using techniques such as surface mounting. Any of the following types of board can be used as the main control circuit board 13, depending on requirements: a single-sided board, a double-sided board, or a multi-layer board. The metal conductors 136 can include a power supply conductor 1361 and a feedback conductor 1362 for connecting the load 137 to an external power source (e.g., a battery 14).The power supply conductor 1361 and the return conductor 1362 are arranged side by side, with the current direction of the power supply conductor 1361 being opposite to the current direction of the return conductor 1362, in order to enable a circuit between the load 137 and the external power source. Furthermore, it is provided that the ratio of the absolute value of the difference between the width of the power supply conductor 1361 or the return conductor 1362 and its average width to the average width can be less than or equal to 20%, wherein this aforementioned ratio can preferably be less than or equal to 15% and more preferably less than or equal to 10%. The aforementioned average value of the width is defined as the average value of the widths of the power supply conductor 1361 and the return conductor 1362.In short, the aforementioned ratio can be used to calculate the magnitude of the difference in width between the power supply conductor 1361 and the return conductor 1362 from their average widths. Thus, the smaller this previously chosen ratio, the more similar the widths of the power supply conductor 1361 and the return conductor 1362 are. Because the current direction of the power supply conductor 1361 is opposite to the current direction of the return conductor 1362, a magnetic field generated by the power supply conductor 1361 and a magnetic field generated by the return conductor 1362 can cancel each other out in a vector superposition in three-dimensional space.Since the difference in width between the power supply conductor 1361 and the return conductor 1362 is relatively small, the total magnetic field strength resulting from the vectorial superposition of the magnetic field generated by the power supply conductor 1361 and the magnetic field generated by the return conductor 1362 in three-dimensional space is low. This is advantageous for reducing electromagnetic interference to other electronic components caused by the metal conductors 136 on the main control circuit board 13, for example, to reduce the risk of the magnetic field generated by the metal conductors 136 on the main control circuit board 13 causing noise such as "rustling" or "squeaking" in the loudspeaker 112.

[0201] In some embodiments, the direction of extension of the power supply conductor 1361 and the direction of extension of the return conductor 1362 can be arranged parallel to each other, which helps to cancel out the magnetic fields generated by the power supply conductor 1361 and the return conductor 1362. The thickness of the power supply conductor 1361 and the thickness of the return conductor 1362 can be the same, which simplifies the forming process of the metal conductors 136. The width of the power supply conductor 1361 and the width of the return conductor 1362 can also be the same, which further helps to cancel out the magnetic fields generated by the power supply conductor 1361 and the return conductor 1362.Furthermore, it is provided that the length of the power supply conductor 1361 and the length of the feedback conductor 1362 can be equal, which contributes to the cancellation of the magnetic fields generated by the power supply conductor 1361 and the magnetic fields generated by the feedback conductor 1362. It should be noted that the thickness of the feedback conductor 1362 can be its dimension in the thickness direction of the main control circuit board 13 (e.g., parallel to the thickness direction X).

[0202] In some embodiments, it is provided that the power supply conductor track 1361 and the return conductor track 1362 can be arranged on the same layer on the base plate 135.

[0203] In some embodiments, it is provided that the power supply conductor track 1361 and the feedback conductor track 1362 can be arranged on different layers on the base plate 135, and that orthogonal projections of the power supply conductor track 1361 and the feedback conductor track 1362 can overlap at least partially in the thickness direction of the main control conductor plate 13.

[0204] In some embodiments, it is provided that the load 137 can be a component, such as a main control chip or a communication chip or the like.

[0205] In some embodiments, the main control circuit board 13 may include a connector 138, which may be arranged on the base plate 135 using techniques such as surface mounting. One end of the power supply conductor 1361 or the return conductor 1362 is connected to the connector 138, and the other end is connected to the load 137 to facilitate connection of the load 137 to an external power source. For example, a battery 14 is used as the external power source, with the battery 14 being connected via a conductor 129 to one end of the flexible circuit board 16, and the other end of the flexible circuit board 16 being snapped to the connector 138 to establish a connection between the battery 14 and the main control circuit board 13.

[0206] The specific embodiments recorded in the present application are intended to be exemplary only. One or more technical features in the embodiments are intended to be optional or additional, without constituting the necessary technical features of the inventive concept of the present application. In other words, the scope of protection of the present application covers the specific embodiments and is far more extensive than the specific embodiments themselves. Furthermore, the specific embodiments listed in the present application are only exemplary and do not limit the scope of protection of the present application.Any equivalent transformation of the device or process carried out using the content of the description and drawings of this application, as well as any direct or indirect application of such content to other related technical fields, shall also fall within the scope of protection of this application.

Claims

[1] Earphones, characterized by , that it comprises a core module and a hook structure connected to the core module, wherein the core module is located in front of one ear when worn and the hook structure is located at least partially behind the ear when worn, wherein the core module in the worn state has, in a thickness direction, an inner side facing the ear and an outer side facing away from the ear, wherein the thickness direction is defined as the direction in which the core module in the worn state extends towards or away from the ear, and wherein, in an unsupported state, the hook structure extends in the thickness direction first towards one side of the inside facing away from the outside and then extends towards the other side of the inside facing the outside. [2] Earphone according to claim 1, characterized by, that the hook structure comprises an elastic metal wire connected to the core module, wherein the elastic metal wire is located at least partially behind the ear in the worn state, and wherein a plane in which the elastic metal wire is located intersects the inside in the unworn state. [3] Earphone according to claim 2, characterized by , that in the unsupported state the angle between the plane in which the elastic metal wire is located and the inside is between 15° and 30°. [4] Earphones according to claim 2 or 3, characterized by that the elastic metal wire has a diameter between 0.6 mm and 0.8 mm. [5] Earphone according to any one of claims 2 to 4, characterized by, that the hook structure comprises an adapter housing that connects the elastic metal wire to the core module, wherein the adapter housing is located at least partially in front of the ear when worn, and wherein the adapter housing extends in the thickness direction towards the side of the inside facing away from the outside. [6] Earphones according to any one of claims 2 to 5, characterized by , that the hook structure comprises a battery housing connected to an end of the elastic metal wire located further away from the core module, wherein a battery coupled to the core module is arranged in the battery housing, and wherein, in the unsupported state, the battery housing is located at least partially between the inside and the outside in the thickness direction. [7] Earphone according to claim 1, characterized by that the battery casing, when worn, is in contact with the back of the ear and / or the head. [8] Earphone according to one of claims 1 to 7, characterized by, that the core module has 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 is greater than the width of the core module, wherein, in the worn state, the core module has, in the lateral direction, a top facing away from the external auditory canal of the ear, a bottom facing the external auditory canal of the ear, and a back connecting the top to the bottom, wherein, in the worn state, the back is located at an end that points in the longitudinal direction towards the back of the head, wherein a first intersection point is formed between a mean dividing line of an orthogonal projection of the hook structure onto a reference plane perpendicular to the lateral direction and an orthogonal projection of the inside onto the reference plane,and wherein a second intersection point is formed between the middle dividing line and an orthogonal projection of the back side onto the reference plane. [9] Earphones according to claim 8, characterized by , that by connecting the first intersection point and the second intersection point a first reference line segment is formed, wherein the first reference line segment has a first component in the length direction and a second component in the thickness direction, and wherein the ratio of the first component to the length of the core modulus is between 0.12 and 0.19 and the ratio of the second component to the thickness of the core modulus is between 0.1 and 0.

16. [10] Earphones according to claim 8 or 9, characterized by, that by connecting a point in the middle dividing line, which is furthest from the inside in the thickness direction, and the first intersection point, a second reference line segment is formed, wherein the second reference line segment has a third component in the length direction and a fourth component in the thickness direction, and wherein the ratio of the third component to the length of the core modulus is between 0.43 and 0.66 and the ratio of the fourth component to the thickness of the core modulus is between 0.26 and 0.

4. [11] Earphone according to any one of claims 1 to 10, characterized by , that 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 a side of the core housing facing the ear in the worn state, through which the sound waves generated by the loudspeaker are emitted. [12] Earphone according to claim 11, characterized by , that the core module has a connecting end that is connected to the hook structure and a free end that is not connected to the hook structure, in the worn state the free end of the core module protrudes into the conchae of the ear, so that there is a certain distance between the inside of the core module and the conchae, The core module, together with the cavum conchae, forms an auxiliary chamber connected to the external auditory canal of the ear, and the sound outlet opening is located at least partially in the auxiliary chamber. [13] Earphone according to claim 12, characterized by that the auxiliary chamber is partially open. [14] Earphones according to claim 12 or 13, characterized by, that the earphone includes an adjustment mechanism for connecting the core module to the hook structure, wherein the adjustment mechanism is designed such that, when worn, the adjustment mechanism sets the relative position of the core module on the ear, so that the core module together with the cavum conchae forms the auxiliary chamber. [15] Earphone according to any one of claims 1 to 14, characterized by , that the core module and the hook structure are arranged such that the core module and the hook structure clamp an ear area corresponding to the cavum conchae, respectively from the front and back of the ear area.

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