A headset

Abstract

The present application mainly relates to an earphone, comprising a movement module and a hook-shaped structure. The movement module is located on the front side of the ear when worn, and its free end not connected to the hook-shaped structure extends into the concha of the ear. At least part of the hook-shaped structure is located on the back side of the ear when worn. The orthographic projections of the hook-shaped structure and the movement module on a first reference plane do not overlap. A first reference line segment with the shortest length is present between the orthographic projection of the hook-shaped structure and the orthographic projection of the movement module. After the movement module is fixed, the hook-shaped structure has a tensile force between 0.6N and 8N after being pulled away from the movement module by a distance of 5mm to 10mm in a direction parallel to the first reference line segment and away from the movement module at a measurement fixed position. This allows the hook-shaped structure to have a deformation capacity of appropriate size, allowing the movement module and the hook-shaped structure to jointly clamp the ear from the front and back sides of the concha with an appropriate clamping force, which is beneficial for taking into account both the stability and comfort of the earphone in wearing.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to a headset. Background Art

[0002] With the increasing popularity of electronic devices, they have become indispensable social and entertainment tools in people's daily lives, and people's expectations of electronic devices are becoming increasingly higher. Electronic devices such as headphones and smart glasses have also been widely used in people's daily lives. They can be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast. However, headphones often have the problem of balancing stability and comfort when worn. Summary of the Invention

[0003] The present application provides an earphone, which includes a movement module and a hook-shaped structure connected to the movement module. The movement module is located on the front side of the ear when worn, and the free end of the movement module not connected to the hook-shaped structure extends into the concha of the ear when worn. At least a portion of the hook-shaped structure is located on the back side of the ear when worn. The orthographic projections of the hook-shaped structure and the movement module on a first reference plane perpendicular to the thickness direction do not overlap. The thickness direction is defined as the direction in which the movement module approaches or moves away from the ear when worn. There is a first reference line segment with the shortest length between the orthographic projection of the hook-shaped structure and the orthographic projection of the movement module. After the movement module is fixed, the hook-shaped structure has a tensile force between 0.6N and 8N after being pulled away from the movement module by a distance of 5mm to 10mm in a direction parallel to the first reference line segment and away from the movement module at a measurement fixing position. The measurement fixing position is defined as 16mm to 27mm away from the free end of the hook structure not connected to the movement module in the length direction of the hook structure.

[0004] In some embodiments, after the movement module is fixed, the hook structure has a tensile force between 0.8N and 5N after being pulled 5mm to 10mm relative to the movement module in a direction parallel to the first reference line segment and away from the movement module at the measurement fixed position.

[0005] In some embodiments, the length of the first reference line segment is between 2 mm and 3 mm.

[0006] In some embodiments, after the movement module is fixed, the hook structure has a tensile force between 0.1N and 1.96N after being pulled 1mm to 5mm relative to the movement module in a direction parallel to the first reference line segment and away from the movement module at the measurement fixed position.

[0007] In some embodiments, the distance between the measurement fixed position and the first reference line segment is less than or equal to 1 mm.

[0008] In some embodiments, the movement module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other, the length of the movement module in the length direction is greater than the width of the movement module in the width direction, the orthographic projection of the free end of the movement module on a second reference plane perpendicular to the length direction has a geometric center, and the distance between the measured fixed position and the extension line passing through the geometric center and parallel to the first reference line segment is less than or equal to 1 mm.

[0009] In some embodiments, the movement module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other, the length of the movement module in the length direction is greater than the width of the movement module in the width direction, and there is a second reference line segment parallel to the width direction and the longest length between the orthographic projection of the hook structure and the orthographic projection of the movement module, and the length of the second reference line segment is between 13 mm and 20 mm.

[0010] In some embodiments, the point where the second reference line segment intersects the orthographic projection of the movement module is used as the starting point of the second reference line segment, and the point where the second reference line segment intersects the orthographic projection of the hook structure is used as the end point of the second reference line segment. A third reference line segment passing through 1 / 4 of the second reference line segment and parallel to the length direction intersects with the hook structure at a first intersection and a second intersection. The first intersection is closer to the movement module than the second intersection in the length direction of the hook structure. The distance between the first intersection and the starting point of the second reference line segment is between 9 mm and 15 mm, and the distance between the second intersection and the starting point of the second reference line segment is between 12 mm and 19 mm.

[0011] In some embodiments, the hook-shaped structure includes an elastic metal wire connected to the movement module and a battery shell connected to one end of the elastic metal wire away from the movement module. A battery coupled to the movement module is arranged in the battery shell, and the extension line of the first reference line segment passes through the battery shell.

[0012] In some embodiments, the battery housing includes a cover shell connected to the elastic metal wire and a battery compartment connected to the cover shell, the battery compartment and the cover shell cooperate to form a cavity structure for accommodating the battery, the hook-shaped structure includes a flexible covering that at least covers the elastic metal wire and the cover shell, and the extension line of the first reference line segment passes through the section where the flexible covering overlaps with the cover shell.

[0013] In some embodiments, one end of the battery compartment in the length direction of the hook-shaped structure is open, the cover shell is partially embedded in the open end of the battery compartment, the flexible covering does not cover the battery compartment, and the outer surface of the flexible covering smoothly transitions to the outer surface of the battery compartment.

[0014] In some embodiments, the measurement fixation location is located at the interface between the flexible cover and the battery compartment.

[0015] In some embodiments, the diameter of the elastic wire is between 0.6 mm and 0.8 mm.

[0016] In some embodiments, the movement module includes a movement shell connected to the hook-shaped structure and a speaker arranged in the movement shell. The movement shell is provided with a sound outlet on the side facing the ear when worn, and the sound waves generated by the speaker are transmitted through the sound outlet. When worn, the movement module cooperates with the concha cavity to form an auxiliary cavity connected to the external auditory canal of the ear, and the sound outlet is at least partially located in the auxiliary cavity.

[0017] In some embodiments, the auxiliary cavity is semi-open.

[0018] The beneficial effect of the present application is that in the earphones provided by the present application, the movement module and at least part of the hook-shaped structure are respectively located on the front and back sides of the ear in the wearing state, so as to allow the earphones to be worn on the ear. After the movement module is fixed, the hook-shaped structure has a tensile force between 0.6N and 5N after being pulled 5mm to 10mm relative to the movement module in a direction parallel to the first reference line segment and away from the movement module at the measurement fixed position, so that the hook-shaped structure has a deformation ability of appropriate size, so as to allow the movement module and the hook-shaped structure to jointly clamp the ear area from the front and back sides of the ear area corresponding to the concha cavity with a clamping force of appropriate size, which is conducive to improving the stability and comfort of the earphones in wearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 is a schematic diagram of the front profile of the ear of the user described in the present application;

[0021] Figure 2 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0022] Figure 3 is a schematic diagram of an embodiment of the earphone provided by the present application in a worn state;

[0023] Figure 4 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0024] Figure 5 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0025] Figure 6This is a comparison chart of frequency response curves measured at the same listening position when the movement module is located at different positions on the ear in an embodiment of the earphone provided by this application;

[0026] Figure 7 yes Figure 2 A schematic cross-sectional view of the structure of a middle earphone according to an embodiment of the present invention, taken along the A1-A1 section;

[0027] Figure 8 yes Figure 2 A schematic cross-sectional view of the structure of a middle earphone according to an embodiment of the present invention, taken along the A2-A2 section;

[0028] Figure 9 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0029] Figure 10 This is a structural diagram of an embodiment of a movement housing provided by the present application;

[0030] Figure 11 This is a structural diagram of an embodiment of a movement housing provided by the present application;

[0031] Figure 12 This is a schematic structural diagram of an embodiment of a bracket provided by the present application;

[0032] Figure 13 yes Figure 8 A schematic diagram of the enlarged structure of the middle earphone embodiment in the B1 area;

[0033] Figure 14 yes Figure 8 A schematic diagram of the enlarged structure of the middle earphone embodiment in the B2 area;

[0034] Figure 15 This is a structural diagram of an embodiment of a hook-shaped structure provided by the present application;

[0035] Figure 16 yes Figure 15 A schematic cross-sectional view of an embodiment of a middle hook-shaped structure along the A3-A3 cutting direction;

[0036] Figure 17 yes Figure 15 A schematic cross-sectional view of an embodiment of the middle hook-shaped structure along another cutting direction perpendicular to the A3-A3 cutting direction;

[0037] Figure 18 yes Figure 15 A schematic diagram of the exploded structure of an embodiment of the middle hook-shaped structure;

[0038] Figure 19 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0039] Figure 20This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0040] Figure 21 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0041] Figure 22 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0042] Figure 23 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0043] Figure 24 This is a structural diagram of an embodiment of a hook-shaped structure provided by the present application;

[0044] Figure 25 This is a structural diagram of an embodiment of the relative positions of the first coil and the second coil provided by the present application;

[0045] Figure 26 This is a structural diagram of an embodiment of a main control circuit board provided by this application. DETAILED DESCRIPTION

[0046] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application and do not limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0047] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0048] Combine Figure 1 The user's ear 100 may include physiological parts such as the external auditory canal 101, the cavum conchae 102, the cymba conchae 103, the triangular fossa 104, the antihelix 105, the scaphoid 106, the helix 107 and the antitragus 108. Among them, although the external auditory canal 101 has a certain depth and extends to the eardrum, for the sake of convenience of description, and in combination with Figure 1 Unless otherwise specified, the external auditory canal 101 herein refers specifically to its entrance away from the tympanic membrane (i.e., the ear opening). Furthermore, physiological locations such as the cavum conchae 102, the hymenoconchae 103, and the triangular fossa 104 have a certain volume and depth. The cavum conchae 102 is directly connected to the external auditory canal 101, meaning that the ear opening can be simply considered to be located at the bottom of the cavum conchae 102.

[0049] Furthermore, different users may have individual differences, resulting in different ear shapes, sizes, and other dimensional differences. For ease of description, and to reduce (or even eliminate) individual differences between different users, a simulator containing a head and its (left and right) ears can be made based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, such as GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series, or B&K 5128 series, to present the scenario of most users wearing headphones 10. Taking GRAS KEMAR as an example, the ear simulator can be any one of GRAS 45AC, GRAS 45BC, GRAS 45CC, or GRAS 43AG; taking HEAD Acoustics as an example, the ear simulator can be any one of HMS II.3, HMS II.3LN, or HMS II.3LN HEC. Therefore, in this application, descriptions such as "a user wears headphones," "the headphones are in a wearing state," and "in the wearing state" may refer to the headphones described in this application being worn on the ears of the aforementioned simulator. Of course, due to individual differences between different users, the headphones may differ slightly from how they appear when worn by different users and when worn on the ears of the aforementioned simulator, but such differences should be tolerated.

[0050] It should be noted that in fields such as medicine and anatomy, the human body can be defined as three basic planes: the sagittal plane, the coronal plane, and the horizontal plane, as well as three basic axes: the sagittal axis, the coronal axis, and the vertical axis. The sagittal plane refers to a plane perpendicular to the ground, along the anterior-posterior direction of the body, dividing the body into left and right halves. The coronal plane refers to a plane perpendicular to the ground, along the lateral direction of the body, dividing the body into anterior-posterior halves. The horizontal plane refers to a plane parallel to the ground, along the lateral direction of the body, dividing the body into upper and lower halves. Accordingly, the sagittal axis refers to the axis along the lateral direction of the body and perpendicular to the coronal plane; the coronal axis refers to the axis along the lateral direction of the body and perpendicular to the sagittal plane; and the vertical axis refers to the axis along the lateral direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear" mentioned in this application is a concept relative to the "back side of the ear". The former refers to the side of the ear away from the head, and the latter refers to the side of the ear facing the head. They are both for the user's ear. Among them, when observing the ear of the above simulator along the direction of the human coronal axis, it can be obtained that Figure 1 Schematic diagram of the front profile of the ear shown.

[0051] As an example, combining Figures 2 to 5 The earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11. The movement module 11 is located on the front side of the ear when worn, and at least part of the hook-shaped structure 12 is located on the back side of the ear when worn, so that the earphone 10 is hung on the ear when worn. The movement module 11 may have a connecting end CE connected to the hook-shaped structure 12 and a free end FE not connected to the hook-shaped structure 12. Furthermore, the movement module 11 may be configured not to block the external auditory canal when worn, so that the earphone 10 acts as an "open earphone". Due to individual differences among different users, when the earphone 10 is worn by different users, the movement module 11 may partially block the external auditory canal, but the external auditory canal is still not blocked.

[0052] In order to improve the stability of the earphone 10 when worn, the earphone 10 can adopt any one of the following methods or a combination thereof. First, at least a portion of the hook-like structure 12 is configured as a contoured structure that fits at least one of the back of the ear and the head, so as to increase the contact area between the hook-like structure 12 and the ear and / or the head, thereby increasing the resistance of the earphone 10 to falling off the ear. Second, at least a portion of the hook-like structure 12 is configured as an elastic structure so that it has a certain amount of deformation when worn, so as to increase the positive pressure of the hook-like structure 12 on the ear and / or the head, thereby increasing the resistance of the earphone 10 to falling off the ear. Third, at least a portion of the hook-like structure 12 is configured to rest against the head when worn, so as to form a reaction force that presses the ear, so that the movement module 11 is pressed against the front side of the ear, thereby increasing the resistance of the earphone 10 to falling off the ear. Fourth, the movement module 11 and hook-shaped structure 12 are configured to clamp physiological areas such as the antihelix and cavum concha from both sides of the ear when worn, thereby increasing resistance to the earphone 10 falling off the ear. Fifth, the movement module 11 or the auxiliary structure connected thereto is configured to at least partially extend into physiological areas such as the cavum concha, cymba concha, fossa triangularis, and scaphoid, thereby increasing resistance to the earphone 10 falling off the ear.

[0053] As an example, combining Figure 3 When worn, the free end FE of the movement module 11 can extend into the cavum concha. The movement module 11 and the hook-shaped structure 12 can be configured to clamp the cavum concha from both the front and rear sides of the ear region, thereby increasing resistance to the earphone 10 falling off the ear and improving the stability of the earphone 10 when worn. For example, the free end FE can be pressed against the cavum concha in the thickness direction X; in another example, the free end FE can abut against the cavum concha in the length direction Y and the width direction Z.

[0054] It should be noted that when worn, the free end FE of the movement module 11 not only extends into the concha, but can also project orthographically onto the antihelix, or onto the left and right sides of the head, in front of the ear on the sagittal axis. In other words, the hook-shaped structure 12 can support the movement module 11 when worn in various locations, such as the concha, the antihelix, or the front of the ear.

[0055] As an example, combining Figure 3 and Figure 4 , the movement module 11 may have an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X in the wearing state, and a connecting surface connecting the inner side surface IS and the outer side surface OS. The thickness direction X can be defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state. Furthermore, at least part of the aforementioned connecting surface is located in the concha cavity in the wearing state, and forms a first contact area with the front side of the above-mentioned ear area, and the hook-shaped structure 12 forms a second contact area with the back side of the above-mentioned ear area in the wearing state, and the aforementioned second contact area and the aforementioned first contact area at least partially overlap in the ear thickness direction of the above-mentioned ear area. In this way, not only can the movement module 11 and the hook-shaped structure 12 jointly clamp the ear from the front and back sides of the ear, but the clamping force formed is mainly manifested as compressive stress, which is beneficial to improving the stability and comfort of the earphone 10 in the wearing state.

[0056] It should be noted that when worn and viewed along the coronal axis, the movement module 11 can be configured in a circular, elliptical, rounded square, rounded rectangular, or other shape. Specifically, when the movement module 11 is configured in a circular, elliptical, or other shape, the aforementioned connection surface can refer to the curved side surface of the movement module 11; and when the movement module 11 is configured in a rounded square, rounded rectangular, or other shape, the aforementioned connection surface can include the lower side surface LS, upper side surface US, and rear side surface RS mentioned below. Furthermore, the movement module 11 can have a length direction Y and a width direction Z that are perpendicular to the thickness direction X and orthogonal to each other. Specifically, the length direction Y can be defined as the direction in which the movement module 11 approaches or moves away from the back of the user's head when worn, and the width direction Z can be defined as the direction in which the movement module 11 approaches or moves away from the top of the user's head when worn. Therefore, for ease of description, this embodiment uses the example of the movement module 11 being configured in a rounded rectangular shape as an example for illustrative purposes. The length of the core module 11 in the longitudinal direction Y may be greater than the width of the core module 11 in the width direction Z.

[0057] As an example, combining Figure 2 、 Figure 3 and Figure 5, when worn and observed along the direction of the human coronal axis, the connecting end CE is closer to the top of the head than the free end FE, so that the free end FE can extend into the concha cavity. Based on this, the angle between the length direction Y and the direction of the human sagittal axis can be between 15° and 60°. Among them, if the aforementioned angle is too small, it is easy to cause the free end FE to be unable to extend into the concha cavity, and the sound outlet 111a on the movement module 11 is too far away from the external auditory canal; if the aforementioned angle is too large, it is also easy to cause the free end FE to be unable to extend into the concha cavity, and the external auditory canal is blocked by the movement module 11. In other words, such a setting allows the free end FE to extend into the concha cavity, and at the same time, the sound outlet 111a on the movement module 11 has a suitable distance from the external auditory canal, so that the user can hear more sound waves generated by the movement module 11 when the external auditory canal is not blocked.

[0058] As an example, combining Figure 4 The hook structure 12 is located on a reference plane perpendicular to the length direction Y (e.g. Figure 4 The orthographic projection of the hook-shaped structure 12 on the reference plane (XZ plane) partially overlaps with the orthographic projection of the free end FE on the same reference plane. The overlapping area formed by the orthographic projection of the hook-shaped structure 12 on the aforementioned reference plane and the orthographic projection of the free end FE on the same reference plane is located between the inner side surface IS and the outer side surface OS in the thickness direction X. In this way, not only can the movement module 11 and the hook-shaped structure 12 jointly clamp the ear from the front and back sides of the ear, but the clamping force formed is mainly manifested as compressive stress, which is conducive to improving the stability and comfort of the earphone 10 when worn.

[0059] Further, combined with Figure 2 、 Figure 4 、 Figure 5 and Figure 9 The hook-shaped structure 12 may include an elastic metal wire 121 connected to the movement module 11 and a battery housing 123 connected to an end of the elastic metal wire 121 away from the movement module 11. A battery 14 coupled to the movement module 11 is arranged in the battery housing 123. The orthographic projection of the battery housing 123 on the above-mentioned reference plane partially overlaps with the orthographic projection of the free end FE on the same reference plane. In this way, when the free end FE rests against the concha cavity, the battery housing 123 can support the ear from the back side of the ear, which is conducive to improving the stability of the earphone 10 when worn. The battery housing 123 may include a cover shell 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the cover shell 1231. The battery compartment 1232 and the cover shell 1231 cooperate to form a cavity structure for accommodating the battery 14.

[0060] As an example, combining Figure 5The core module 11 may have an upper side surface US facing away from the external auditory canal along the width direction Z and a lower side surface LS facing the external auditory canal in the wearing state, and a rear side surface RS connecting the upper side surface US and the lower side surface LS. The rear side surface RS is located at the end facing the back of the head in the length direction Y in the wearing state and is at least partially located in the concha cavity. The hook-shaped structure 12 is perpendicular to the reference plane in the thickness direction X (for example Figure 5 The edge of the orthographic projection on the YZ plane (on the center) facing the movement module 11 can be divided into a first segment S1 and a second segment S2, each forming a continuous arc-shaped transition. The dividing point DP between the first segment S1 and the second segment S2 is the point where the aforementioned edge is furthest from the upper side surface US along the width direction Z. Furthermore, the overall curvature of the hook-like structure 12 in the first segment S1 is greater than that in the second segment S2. This allows the free end FE to extend into the concha cavity while enabling the hook-like structure 12 to cooperate with the movement module 11 to provide appropriate clamping force.

[0061] It should be noted that the overall curvature described above can be used to qualitatively describe the degree of curvature of different segments of the hook-shaped structure 12, where the radius of curvature of each segment can be constant or continuously variable. Therefore, at least one point within the first segment S1 has a smaller curvature radius than any point within the second segment S2. Furthermore, the overall curvature described above can also be quantitatively characterized by an average curvature radius, that is, by first calculating the curvature radius of N points within each segment and then taking the average.

[0062] Furthermore, in the extension direction of the hook structure 12, the length of the second section S2 can be greater than the length of the first section S1, so that the hook structure 12 and the movement module 11 can clamp the ear together, and increase the area of ​​contact between the hook structure 12 and the user's skin, which is conducive to improving the stability of the earphone 10 when worn.

[0063] In some embodiments, the earphone 10 has a first reference line segment RL1 parallel to the width direction Z. The starting point of the first reference line segment RL1 is the point where the first reference line segment RL1 intersects the upper side surface US, and the end point of the first reference line segment RL1 is the demarcation point DP. The second reference line segment RL2, the third reference line segment RL3, and the fourth reference line segment RL4 mentioned below are successively farther and farther 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 extend into the cavum concha, and the sound outlet 111a on the movement module 11 may be too far from the external auditory canal. If the length of the first reference line segment RL1 is too long, the free end FE may also be unable to extend into the cavum concha, and the external auditory canal may be blocked by the movement module 11. In other words, this arrangement allows the free end FE to extend into the concha cavity, while ensuring that the sound outlet 111a on the movement module 11 is at a suitable distance from the external auditory canal, so that the user can hear more sound waves generated by the movement module 11 without blocking the external auditory canal.

[0064] Furthermore, a second reference line segment RL2 passing through 1 / 4 of the first reference line segment RL1 and parallel to the length direction Y intersects the first segment S1 and the second segment S2 at a first intersection point P1 and a second intersection point P2, respectively. The distance between the first intersection point P1 and the starting point of the first reference line segment RL1 may 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 may be between 12 mm and 19 mm. A third reference line segment RL3 passing through 1 / 2 of the first reference line segment RL1 and parallel to the length direction Y intersects the first segment S1 and the second segment S2 at a third intersection point P3 and a fourth intersection point P4, respectively. The third intersection point P1 may 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 may be between 12 mm and 19 mm. The distance between 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. The fourth reference line segment RL4, which passes through ¾ of the first reference line segment RL1 and is parallel to the length direction Y, intersects the first segment S1 and the second segment S2 at a fifth intersection point P5 and a sixth intersection point P6, respectively. The distance between the fifth intersection point P5 and the starting point of the first reference line segment RL1 can be 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 can be between 12 mm and 19 mm. In this way, when the free end FE extends into the concha cavity and the sound outlet 111a on the movement module 11 is at an appropriate distance from the external auditory canal, the hook-shaped structure 12 can better fit the ear.

[0065] In some embodiments, a fifth reference line segment RL5 is defined between the second segment S2 and the rear side surface RS, with the shortest distance along the length direction Y. The length of the fifth reference line segment RL5 can be between 2 mm and 3 mm. If the length of the fifth reference line segment RL5 is too short, the clamping force of the movement module 11 and the hook-shaped structure 12 on the ear can be too strong, causing discomfort when wearing. If the length of the fifth reference line segment RL5 is too long, the clamping force of the movement module 11 and the hook-shaped structure 12 on the ear can be too weak, causing instability when wearing. In other words, this configuration ensures both stability and comfort when wearing the earphone 10.

[0066] Furthermore, the fifth reference line segment RL5 is defined as follows: the point where the fifth reference line segment RL5 intersects the rear side surface RS serves as the starting point of the fifth reference line segment RL5, and the point where the fifth reference line segment RL5 intersects the second segment S2 serves as the endpoint of the fifth reference line segment RL5. The orthographic projection of the intersection of the first reference line segment RL1 and the upper side surface US along the length direction Y intersects the second segment S2 at a seventh intersection point P7. The orthographic projection of the intersection of the extended line of the first reference line segment RL1 and the lower side surface LS along the length direction Y intersects the second segment 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, and 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. In this way, the hook structure 12 can better fit the ear while maintaining both stability and comfort when the earphone 10 is worn.

[0067] As an example, combining Figure 7 、 Figure 8 and Figure 5 The movement module 11 may include a movement shell 111 connected to the hook structure 12 and a speaker 112 arranged in the movement shell 111. Among them, the movement shell 111 is provided with a sound outlet 111a on the inner side surface facing the ear (such as the inner side surface IS mentioned above) in the wearing state, and the sound waves generated by the speaker 112 are transmitted through the sound outlet 111a to be transmitted into the external auditory canal. It is worth noting that the sound outlet 111a can also be provided on the side of the movement shell 111 corresponding to the lower side surface LS, and can also be provided at the corner between the aforementioned inner side surface and the lower side surface LS. Furthermore, the speaker 112 may include a magnetic circuit system, a voice coil extending into the magnetic circuit system, and a diaphragm connected to the voice coil. The magnetic field generated after the voice coil is energized interacts with the magnetic field formed by the magnetic circuit system, thereby driving the diaphragm to generate mechanical vibrations, and then generating sound through the propagation of media such as air.

[0068] Further, combined with Figures 7 to 9The earphone 10 may include a main control circuit board 13 disposed within the movement housing 111 and a battery 14 disposed at an end of the hook-shaped structure 12 away from the movement module 11. The battery 14 and the speaker 112 are respectively coupled to the main control circuit board 13, so that the battery 14 can power the speaker 112 under the control of the main circuit board 13. Of course, the battery 14 and the speaker 112 can also be disposed within the movement housing 111, with the battery 14 being closer to the connection end CE and the speaker 112 being closer to the free end FE.

[0069] As an example, combining Figure 3 and Figure 1 Since the concha cavity has a certain volume and depth, after the free end FE extends into the concha cavity, there can be a certain distance between the inner side IS of the movement housing 111 and the concha cavity. In other words, the movement module 11 can cooperate with the concha cavity to form an auxiliary cavity that communicates with the external auditory canal when worn, and the sound outlet 111a is at least partially located in the aforementioned auxiliary cavity. In this way, in the worn state, the sound waves generated by the speaker 112 and propagated through the sound outlet 111a will be restricted by the aforementioned auxiliary cavity, that is, the aforementioned auxiliary cavity can gather the sound waves so that more sound waves can be propagated into the external auditory canal, thereby increasing the volume and sound quality of the sound heard by the user in the near field, which is conducive to improving the acoustic effect of the earphone 10. Furthermore, since the movement module 11 can be configured not to block the external auditory canal when worn, the aforementioned auxiliary cavity can be semi-open. In this way, the sound waves generated by the speaker 112 and propagated through the sound outlet 111a, in addition to most of them being propagated to the external auditory canal, a small part is propagated to the outside of the earphone 10 and the ear through the gap between the movement module 11 and the ear (for example, the part of the concha cavity not covered by the movement module 11), thereby forming a first sound leakage in the far field; at the same time, the movement module 11 generally has an acoustic hole (for example, the pressure relief hole 111c mentioned later), and the sound waves propagated through the aforementioned acoustic hole generally form a second sound leakage in the far field, and the phase of the aforementioned first sound leakage and the phase of the aforementioned second sound leakage are (close to) opposite to each other, so that the two can cancel each other out of phase in the far field, which is beneficial to reduce the sound leakage of the earphone 10 in the far field.

[0070] Furthermore, the earphone 10 may include an adjustment mechanism connecting the movement module 11 and the hook structure 12. Different users can use the adjustment mechanism to adjust the relative position of the movement module 11 on the ear to ensure that the movement module 11 is located in a suitable position, thereby forming the auxiliary cavity described above with the movement module 11 and the cavum concha. Furthermore, the presence of the adjustment mechanism allows users to adjust the earphone 10 to a more stable and comfortable wearing position.

[0071] As an example, combining Figure 6First, the earphones 10 are worn on the simulator, and then the position of the movement module 11 on the ear of the simulator is adjusted. Then, a detector (e.g., a microphone) disposed in the external auditory canal of the simulator (e.g., where the eardrum is located, i.e., the listening position) measures the frequency response curve of the earphones 10, thereby simulating the listening experience of a user wearing the earphones 10. The frequency response curve can be used to characterize the relationship between vibration magnitude and frequency; the abscissa of the frequency response curve can represent frequency in Hz; and the ordinate of the frequency response curve can represent vibration magnitude in dB. Figure 6 In the figure, curve 6_1 can represent the frequency response curve when the core module 11 does not form the auxiliary cavity with the concha cavity in the wearing state, and curve 6_2 can represent the frequency response curve when the core module 11 cooperates with the concha cavity to form the auxiliary cavity in the wearing state. Figure 6 The comparison of the frequency response curves shown directly and unambiguously shows that curve 6_2 is generally located above curve 6_1, that is, compared with the case where the movement module 11 does not form the above-mentioned auxiliary cavity with the cavum concha when worn, the case where the movement module 11 forms the above-mentioned auxiliary cavity with the cavum concha when worn is more conducive to improving the acoustic effect of the earphone 10.

[0072] As an example, combining Figure 7 、 Figure 9 and Figure 11 The movement module 11 may include a flexible insert 1131 disposed outside the movement housing 111. The hardness of the flexible insert 1131 is less than that of the movement housing 111. The movement housing 111 may be made of plastic; the flexible insert 1131 may be made of silicone, rubber, or the like, and may be formed by injection molding in a predetermined area of ​​the movement housing 111. Furthermore, the flexible insert 1131 may at least partially cover the area of ​​the movement housing 111 corresponding to the free end FE, so that the movement module 11 is at least partially abutted against the cavum concha via the flexible insert 1131. In other words, the portion of the movement housing 111 that extends into and contacts the cavum concha may be covered by the flexible insert 1131. In this way, when the movement module 11 is against the concha cavity, for example, when the movement module 11 and the hook structure 12 are arranged to jointly clamp the aforementioned ear area from the front and back sides of the ear area corresponding to the concha cavity of the ear, the flexible insert 1131 acts as a buffer between the movement housing 111 and the ear (for example, the aforementioned ear area) to relieve the pressure of the earphone 10 on the ear, which is conducive to improving the comfort of the earphone 10 when worn.

[0073] By way of example, the flexible insert 1131 can continuously cover at least a portion of the area corresponding to the rear side RS, upper side US, and lower side LS of the core housing 111. For example, the area corresponding to the rear side RS of the core housing 111 is covered by the flexible insert 1131 by more than 90%, and the areas corresponding to the upper side US and lower side LS of the core housing 111 are each covered by the flexible insert 1131 by approximately 30%. This balances the comfort of the earphone 10 when worn and the need to accommodate structural components such as the speaker 112 within the core housing 111.

[0074] In some embodiments, when viewed along the thickness direction X, the flexible insert 1131 may be arranged in a U-shape.

[0075] In some embodiments, the portion of the flexible insert 1131 corresponding to the lower side LS can rest against the antitragus. The thickness of the portion of the flexible insert 1131 corresponding to the rear side RS can be thinner than the thickness of the portions of the flexible insert 1131 corresponding to the upper side US and lower side LS, respectively, to ensure good comfort when the movement module 11 rests against an uneven position within the concha cavity.

[0076] As an example, combining Figure 7 and Figure 8 The movement housing 111 may include a movement inner shell 1111 and a movement outer shell 1112 that are fastened to each other along the thickness direction X. The movement inner shell 1111 is closer to the ear than the movement outer shell 1112 when worn. The parting surface 111b between the movement outer shell 1112 and the movement inner shell 1111 is inclined toward the side of the movement inner shell 1111 in the direction close to the free end FE, so that the flexible insert 1131 can be set as much as possible in the area of ​​the movement outer shell 111 corresponding to the free end FE. For example: Figure 11 The flexible inserts 1131 are all arranged in the area of ​​the movement housing 111 corresponding to the free end FE to simplify the structure of the movement module 11 and reduce the processing cost.

[0077] As an example, combining Figure 7 、 Figure 8 and Figure 11The movement module 11 may include a flexible coating 1132, the hardness of which is less than that of the movement housing 111. The movement housing 111 may be made of plastic; the flexible coating 1132 may be made of silicone, rubber, or the like, and may be formed on a preset area of ​​the movement housing 111 by injection molding, gluing, or the like. Furthermore, the flexible coating 1132 may integrally cover at least a portion of the outer surface of the flexible insert 1131 and at least a portion of the outer surface of the movement outer shell 1112 that is not covered by the flexible insert 1131, which helps to enhance the consistency of the appearance of the movement module 11. Of course, the flexible coating 1132 may further cover the outer surface of the movement inner shell 1111. The hardness of the flexible insert 1131 is less than that of the flexible coating 1132, so as to allow the flexible insert 1131 to be sufficiently soft. In addition, the flexible cover 1132 can also improve the comfort of the earphone 10 when worn, and has a certain structural strength to protect the flexible insert 1131. Furthermore, the area of ​​the outer surface of the flexible insert 1131 can be between 126mm 2 and 189mm 2 If the aforementioned area is too small, the movement module 11 may be less comfortable to wear. If the aforementioned area is too large, the movement module 11 may be too large, and the area where the flexible insert 1131 does not contact the cavum concha is too large, thus defeating the purpose of providing the flexible insert 1131. Furthermore, the thickness of the flexible covering 1132 is less than the thickness of the movement housing 1112.

[0078] As an example, combining Figure 11 and Figure 9The movement module 11 may include metal functional patterns such as an antenna pattern 1141 and / or a touch pattern 1142, which are arranged between the movement housing 1112 and the flexible cover 1132. Among them, the antenna pattern 1141 can be formed on the outside of the movement housing 1112 by means of laser direct structuring (LDS); the touch pattern 1142 can be formed on the outside of the movement housing 1112 by means of laser direct structuring technology, or it can be a flexible touch circuit board attached to the outside of the movement housing 1112. Furthermore, the movement housing 1112 is provided with metallized holes connected to the antenna pattern 1141 and the touch pattern 1142 respectively. At this time, since the main control circuit board 13 is disposed within the movement housing 111, for example, the main control circuit board 13 is connected to the movement housing 1112, the main circuit board 13 can contact the inner wall of the corresponding metallized hole through elastic metal parts such as pogo pins, metal springs, etc. For example, the antenna pattern 1141 and the touch pattern 1142 are respectively connected to the pogo pin 131 and pogo pin 132 soldered to the main circuit board 13. Accordingly, the speaker 112 is located on the side of the main circuit board 13 facing away from the movement housing 1112. In this way, compared with the antenna pattern 1141 and the touch pattern 1142 being respectively arranged on the inner side of the movement housing 1112 facing the speaker 112, the antenna pattern 1141 being arranged on the outer side of the movement housing 1112 can increase the distance between it and the main control circuit board 13, that is, increase the antenna clearance area, thereby increasing the anti-interference ability of the antenna pattern 1141; the touch pattern 1142 being arranged on the outer side of the movement housing 1112 can shorten the distance between it and the external signal trigger source (such as the user's finger), that is, reduce the touch distance, thereby increasing the sensitivity of the touch pattern 1142 being triggered by the user.

[0079] In some embodiments, the antenna pattern 1141 may surround the periphery of the touch pattern 1142 to fully utilize the space outside the core housing 1112. The antenna pattern 1141 may be U-shaped, and the touch pattern 1142 may be square.

[0080] Furthermore, the core module 11 may include a microphone 133 welded to the main control circuit board 13. The microphone 133 may pick up user voice and ambient sound through a sound pickup hole provided on the core housing 1112. When the main control circuit board 13 is connected to the core housing 1112, the microphone 133 may be further pressed against the core housing 1112.

[0081] As an example, combining Figure 10 and Figure 11The inner shell 1111 of the movement may include a bottom wall 1113 and a first side wall 1114 connected to the bottom wall 1113, and the outer shell 1112 of the movement may include a top wall 1115 and a second side wall 1116 connected to the top wall 1115. The second side wall 1116 and the first side wall 1114 are buckled with each other along the parting surface 111b, and the two can support each other. Figure 10 and Figure 11 In the opposite direction of the arrow Y in the middle), the portion of the first side wall 1114 near the free end FE gradually approaches the bottom wall 1113 in the thickness direction X, and the portion of the second side wall 1116 near the free end FE gradually moves away from the top wall 1115 in the thickness direction X, so that the split mold surface 111b is inclined toward the side where the movement inner shell 1111 is located in the direction close to the free end FE. At this time, the flexible insert 1131 is at least partially arranged on the outside of the second side wall 1116. For example: Figure 11 and Figure 9 In addition to being disposed on the outside of the second side wall 1116, the flexible insert 1131 is also partially disposed on the outside of the top wall 1115. Accordingly, the sound outlet 111a can be disposed on the bottom wall 1113. Of course, the sound outlet 111a can also be disposed on the side of the first side wall 1114 corresponding to the lower side surface LS, or at the corner between the first side wall 1114 and the bottom wall 1113. Furthermore, the antenna pattern 1141 and the touch control pattern 1142, as well as their respective metallized holes, can be disposed on the top wall 1115, and the pickup through-hole of the microphone 133 can also be disposed on the top wall 1115.

[0082] As an example, combining Figure 7 and Figure 11 The core housing 1112 may be provided with an embedding groove at least partially located on the second side wall 1116, and the flexible insert 1131 is embedded in the aforementioned embedding groove, so that the outer surface of the region of the core housing 1112 not covered by the flexible insert 1131 is in continuous transition with the outer surface of the flexible insert 1131. Figure 7 The area where the flexible insert 1131 is located can be simply regarded as the aforementioned embedding groove. This not only helps the flexible insert 1131 to be accumulated on the movement housing 1112 during the injection molding process, preventing the flexible insert 1131 from overflowing, but also helps to improve the appearance quality of the movement module 11 and avoid the surface of the movement module 11 from being bumpy.

[0083] Furthermore, the second side wall 1116 may include a first sub-side wall segment 1117 and a second sub-side wall segment 1118 connected to the first sub-side wall segment 1117, wherein the first sub-side wall segment 1117 is closer to the top wall 1115 than the second sub-side wall segment 1118 in the thickness direction X, and the second sub-side wall segment 1118 protrudes toward the outside of the movement housing 111 compared to the first sub-side wall segment 1117. In short, the second side wall 1116 may have a stepped structure. In this way, it is not only beneficial for the flexible insert 1131 to be accumulated on the movement housing 1112 during the injection molding process, thereby preventing the flexible insert 1131 from overflowing, but also beneficial for the movement module 11 to better abut against the concha cavity through the flexible insert 1131, thereby improving the comfort of the earphone 10 when worn.

[0084] Furthermore, the main control circuit board 13 can be connected to the core housing 1112, for example, fixed to a heat-seal post connected to the top wall 1115, and can partially overlap with the first sub-side wall segment 1117 in the thickness direction X. The speaker 112 can partially overlap with the second sub-side wall segment 1118 in the thickness direction X. This facilitates the installation of a sufficiently large speaker 112 in the core housing 111, thereby enhancing the sound volume produced by the earphone 10.

[0085] As an example, combining Figure 10 and Figure 8 , the movement housing 111 may be provided with a pressure relief hole 111c, which enables the space on the side of the speaker 112 facing the main control circuit board 13 to be connected to the external environment, that is, the air can freely enter and exit the aforementioned space. In this way, it is helpful to reduce the resistance of the diaphragm of the speaker 112 during the vibration process. Among them, the pressure relief hole 111c can be facing the top of the head when worn, which is helpful to avoid the sound waves propagating through the pressure relief hole 111c from leaking sound (that is, the above-mentioned second leakage sound) and being heard. Based on the Helmholtz resonance cavity, the aperture of the pressure relief hole 111c can be as large as possible, so that the resonant frequency of the second leakage sound is shifted to a higher frequency band (for example, a frequency range greater than 4kHz) as much as possible, which is helpful to further avoid the second leakage sound from being heard.

[0086] Furthermore, the movement housing 111 may be provided with a sound-tuning hole 111d, which allows the resonant frequency of the second sound leakage to shift as much as possible to a higher frequency band (e.g., a frequency range greater than 4kHz), which helps to further prevent the second sound leakage from being heard. The area of ​​the sound-tuning hole 111d may be smaller than the area of ​​the pressure relief hole 111c, so that the space on the side of the speaker 112 facing the main control circuit board 13 is more connected to the external environment through the pressure relief hole 111c. Furthermore, the spacing between the sound outlet hole 111a and the pressure relief hole 111c in the width direction Z is greater than the spacing between the sound outlet hole 111a and the sound-tuning hole 111d in the width direction Z, so as to avoid the sound waves propagating through the sound outlet hole 111a and the pressure relief hole 111c respectively from canceling each other out in the near field, which helps to increase the volume of the sound propagated through the sound outlet hole 111a heard by the user. Accordingly, the sound tuning hole 111d is closer to the connection end CE than the sound outlet hole 111a, so as to increase the distance between the two in the length direction Y, thereby avoiding the sound waves propagating through the sound outlet hole 111a and the sound tuning hole 111d respectively from canceling each other out of phase in the near field, which is beneficial to increasing the volume of the sound propagated through the sound outlet hole 111a heard by the user.

[0087] As an example, combining Figure 10 , the sound outlet hole 111a, the pressure relief hole 111c and the sound adjustment hole 111d can be arranged on the movement inner shell 1111, for example, the sound outlet hole 111a is arranged on the bottom wall 1113 and the pressure relief hole 111c and the sound adjustment hole 111d are respectively arranged on the first side wall 1114. Among them, the pressure relief hole 111c and the sound adjustment hole 111d can be respectively arranged on the opposite sides of the first side wall 1114 along the width direction Z. In this way, since the sound outlet hole 111a, the pressure relief hole 111c and the sound adjustment hole 111d are all arranged on the movement inner shell 1111, the structure of the movement outer shell 1112 is simpler, which is conducive to reducing processing costs. In addition, since the pressure relief hole 111c and the sound adjustment hole 111d are respectively arranged on the opposite sides of the first side wall 1114 along the width direction Z, the above-mentioned parting surface 111b can be symmetrically arranged about a reference plane perpendicular to the width direction Z, which is conducive to improving the appearance quality of the movement module 11.

[0088] As an example, combining Figure 7 and Figure 8The movement module 11 may include a bracket 115 disposed in the movement housing 111. The bracket 115 and the speaker 112 may be arranged to form an acoustic cavity 116, so that the acoustic cavity 116 is separated from other structures in the movement housing 111 (such as the main control circuit board 13, etc.), which is conducive to improving the acoustic performance of the movement module 11. Among them, the movement housing 111 is provided with an acoustic hole, for example, the acoustic hole is at least one of the pressure relief hole 111c and the sound adjustment hole 111d, and the bracket 115 is provided with an acoustic channel 1151 connecting the acoustic hole and the acoustic cavity 116, so that the acoustic cavity 116 is connected to the external environment, that is, air can freely enter and exit the acoustic cavity 116, which is conducive to reducing the resistance of the diaphragm of the speaker 112 during the vibration process.

[0089] Furthermore, the bracket 115 cooperates with the movement housing 111 to form a first glue-containing groove 1171 surrounding at least a portion of the acoustic hole. The first glue-containing groove 1171 contains a first glue for sealing the assembly gap between the bracket 115 and the movement housing 111. That is, the first glue is used to provide a waterproof seal, which helps prevent external droplets such as sweat and rain from invading the space within the movement housing 111 where the main control circuit board 13 is located. Thus, based on the Helmholtz resonance cavity, compared to the related art method of pressing a silicone sleeve against the movement housing 111 through the bracket 115 for waterproof sealing, the present technical solution uses the first glue to provide a waterproof seal, which can omit the aforementioned silicone sleeve in the related art. This helps shorten the length of the portion of the acoustic cavity 116 that communicates with the external environment (including the acoustic channel 1151 and the acoustic hole), so that the resonant frequency of the leaked sound (i.e., the second leaked sound) generated by propagating through the pressure relief hole 111c is shifted as much as possible to a higher frequency band (e.g., a frequency range greater than 4 kHz), thereby further preventing the second leaked sound from being heard.

[0090] It should be noted that: when the acoustic hole is the pressure relief hole 111c, the first adhesive groove 1171 surrounds at least a portion of the pressure relief hole 111c; when the acoustic hole is the sound tuning hole 111d, the first adhesive groove 1171 surrounds at least a portion of the sound tuning hole 111d; when the acoustic holes are the pressure relief hole 111c and the sound tuning hole 111d, the first adhesive groove 1171 surrounds at least a portion of the pressure relief hole 111c and the sound tuning hole 111d respectively. Figure 8 、 Figure 10 and Figure 12In this application, the acoustic holes are taken as pressure relief holes 111c and sound-tuning holes 111d, and the first adhesive groove 1171 surrounds at least a portion of the pressure relief holes 111c and the sound-tuning holes 111d, respectively, for illustrative explanation. Furthermore, if the gap between the bracket 115 and the movement housing 111 (e.g., its bottom wall 1113) is large enough, or the bottom wall 1113 and the first side wall 1114 of the movement housing 111 are not integrally formed structural parts (i.e., two separate structural parts), then the first adhesive groove 1171 can surround the entire acoustic hole, i.e., the first adhesive groove 1171 is a complete annular structure.

[0091] As an example, combining Figure 12 and Figure 10 The bracket 115 may include an annular main body 1152 and a docking portion 1153 connected to the annular main body 1152. The annular main body 1152 is sleeved on the periphery of the speaker 112 to form an acoustic cavity 116, and the acoustic channel 1151 passes through the docking portion 1153 and the annular main body 1152. Furthermore, the docking portion 1153 is located between the annular main body 1152 and the core shell 111 and surrounds at least a portion of the above-mentioned acoustic hole. The docking portion 1153 cooperates with the core shell 111 to form a first glue-containing groove 1171. Since the above-mentioned acoustic hole can be a pressure relief hole 111c and a sound adjustment hole 111d, two docking portions 1153 are correspondingly provided, and two first glue-containing grooves 1171 are also correspondingly provided. Accordingly, the docking portion 1153 cooperates with the first side wall 1114 to form the first glue-containing groove 1171. In this way, since the bracket 115 is arranged in a ring shape, the speaker 112 is exposed toward the side of the main control circuit board 13, which is conducive to reducing the thickness of the movement module 11 in the thickness direction X.

[0092] As an example, combining Figure 10 and Figure 8, a recessed area 1119 may be provided on the inner side of the movement housing 111, the acoustic hole may be provided at the bottom of the recessed area 1119, the movement module 11 may include an acoustic resistance net 118 provided in the recessed area 1119, and the docking portion 1153 presses the acoustic resistance net 118 on the bottom of the recessed area 1119. In this way, it is not only beneficial to prevent the bracket 115 from scraping the acoustic resistance net 118 during the assembly process, but also beneficial to reduce the assembly gap between the bracket 115, the acoustic resistance net 118 and the movement inner shell 1111, and to prevent the acoustic resistance net 118 from shaking. Among them, the acoustic resistance net 118 can be pre-fixed to the bottom of the recessed area 1119 by double-sided tape or glue; the acoustic resistance net 118 can also be pre-fixed on a protective steel net, and the aforementioned protective steel net is then pre-fixed to the bottom of the recessed area 1119 by double-sided tape or glue. Correspondingly, since the above-mentioned acoustic holes can be the pressure relief hole 111c and the sound adjustment hole 111d, two recessed areas 1119 are correspondingly provided, and two acoustic resistance nets 118 are also correspondingly provided.

[0093] Furthermore, the above-mentioned first glue can be further used to seal the assembly gap between the bracket 115 and the acoustic resistance net 118 and / or the assembly gap between the acoustic resistance net 118 and the movement shell 111 (such as the side wall of the recessed area 1119), which is conducive to further waterproof sealing.

[0094] As an example, combining Figure 8 、 Figure 10 and Figure 12 , the docking portion 1153 can be used to form the bottom wall and one side wall of the first glue containing groove 1171, and the movement housing 111 can be used to form the other side wall of the first glue containing groove 1171. Among them, the groove wall on the movement housing 111 and the groove wall on the docking portion 1153 are arranged opposite to each other, so that the first glue containing groove 1171 has a certain width and depth. Of course, the docking portion 1153 can be used to form one side wall of the first glue containing groove 1171, and the movement housing 111 can be used to form the bottom wall and the other side wall of the first glue containing groove 1171; or, the docking portion 1153 can be used to form one side wall and a part of the bottom wall of the first glue containing groove 1171, and the movement housing 111 can be used to form the other side wall and another part of the bottom wall of the first glue containing groove 1171.

[0095] As an example, combining Figures 12 to 14The speaker 112 may include a body 1121 and an annular support 1122 disposed along the circumference of the body 1121. The lower end of the bracket 115 may be supported on the annular support 1122. The acoustic channel 1151 may be open on the side facing the annular support 1122, and the annular support 1122 further blocks the open portion of the acoustic channel 1151. In this case, the first glue groove 1171 may be simply considered to surround a portion of the acoustic hole, so that glue can be subsequently filled into the first glue groove 1171 using methods such as a dispensing process.

[0096] In some embodiments, the annular platform 1122 may include a first annular table 1123 and a second annular table 1124 arranged in a stepped manner, and the second annular table 1124 is arranged around the periphery of the first annular table 1123; a portion of the lower end of the bracket 115 can be supported on the first annular table 1123, and another portion of the lower end of the bracket 115 can form a spacing area with the second annular table 1124, so that the bracket 115, the annular platform 1122 and the movement shell 111 cooperate to form a second glue groove 1172, and the second glue groove 1172 contains a second glue for sealing the assembly gap between any two of the bracket 115, the annular platform 1122 and the movement shell 111 to perform corresponding waterproof sealing.

[0097] In some embodiments, the upper end of the bracket 115 can be placed on the main body 1121 and cooperate with the main body 1121 to form a third glue groove 1173. The third glue groove 1173 contains a third glue for sealing the assembly gap between the bracket 115 and the main body 1121 to perform corresponding waterproof sealing.

[0098] It should be noted that: in the specific assembly process of the movement module 11, the following process steps can be included, and the order of all process steps can be adjusted as needed: 1) pre-fix the sound resistance net 118 to the bottom of the recessed area 1119 by double-sided tape; 2) fix the speaker 112 on the bottom wall 1113, and glue the assembly gap between the two, and the corresponding glue portion is accumulated on the second annular table 1124 of the speaker 112; 3) before the glue in step 2) is cured, fix the bracket 115 on the speaker 112, wherein the lower end of the bracket 115 supports On the first annular table 1123 of the speaker 112, the space between the lower end of the bracket 115 and the second annular table 1124 is also filled with glue, and the docking portion 1153 of the bracket 115 presses the acoustic resistance net 118 and cooperates with the first side wall 1114 to form a first glue groove 1171. The upper end of the bracket 115 is placed on the main body 1121 and cooperates with the main body 1121 to form a third glue groove 1173; 4) Glue is dispensed on the first glue groove 1171, the third glue groove 1173 and the assembly gap between the lower end of the bracket 115 and the speaker 112 and the inner shell 1111 of the movement. Among them, since the assembly gap between the lower end of the bracket 115 and the speaker 112 and the inner shell 1111 of the movement is very close to the first glue groove 1171, the assembly gap between the lower end of the bracket 115 and the speaker 112 and the inner shell 1111 of the movement can be simply regarded as a continuation of the first glue groove 1171, that is, the first glue groove 1171 and the second glue groove 1172 can be connected.

[0099] As an example, combining Figures 15 to 18 and Figure 7 The hook-shaped structure 12 may include an adapter shell 122 connected to the movement module 11, and the adapter shell 122 may be pre-formed with a receiving cavity 124. The earphone 10 may include an electronic component 15 that is subsequently installed in the receiving cavity 124. The connection method between the adapter shell 122 and the movement module 11 may be one or a combination of assembly methods such as snap connection, welding, glue connection, threaded connection and screw connection. In this way, compared with the related art in which the electronic component 15 is set in the movement module 11, the present technical solution, by installing the electronic component 15 in the preset receiving cavity 124 of the hook-shaped structure 12, is not only conducive to saving space in the movement module 11, making it more compact and small in structure, but also conducive to simplifying the structure of the movement module 11, making it more efficient in assembly, and also conducive to rationally arranging the relative positions of various structural components in the earphone 10, so that both the movement module 11 and the hook-shaped structure 12 can be fully utilized.

[0100] It should be noted that: the adapter shell 122 is pre-formed with a accommodating cavity 124, which may mean that the accommodating cavity 124 is formed at the same time when the adapter shell 122 is molded, rather than being formed by processing after the adapter shell 122 is molded. For example: the adapter shell 122 is a plastic shell, and the corresponding accommodating cavity 124 can be obtained after the plastic shell is injection molded by setting a corresponding core. Correspondingly, the subsequent installation of the electronic component 15 in the accommodating cavity 124 may mean that the electronic component 15 and the adapter shell 122 are not integrally molded structural parts. For example: the adapter shell 122 is a plastic shell, and the electronic component 15 is not integrally injection molded in the plastic shell by means of an insert. Based on this, the description of the adapter shell 122 pre-formed with a through hole 1251, a blind hole 1252 and a through hole 1253 mentioned later is the same or similar to this, and will not be repeated here. Of course, the accommodating cavity 124 can also be obtained by means of a drilling process after the adapter shell 122 is formed. The through hole 1251 , the blind hole 1252 and the through hole 1253 can also be obtained by means of a drilling process after the adapter shell 122 is formed.

[0101] As an example, combining Figure 7 The electronic component 15 can be coupled to the main control circuit board 13 to achieve electrical connection between the hook structure 12 and the movement module 11. The adapter housing 122 can be plugged and fixed with the movement housing 111 to achieve structural connection between the hook structure 12 and the movement module 11, which is simple and reliable. Among them, the aforementioned plug-in fixation can refer to one of the adapter housing 122 and the movement housing 111 partially extending into the other along the assembly direction and then plugged and fixed with the help of other limiting structures such as pins, and the assembly direction of the aforementioned limiting structure is not parallel to the aforementioned assembly direction; the aforementioned plug-in fixation can also refer to one of the adapter housing 122 and the movement housing 111 partially extending into the other, so that they can be plugged and fixed without the help of the aforementioned limiting structure.

[0102] As an example, combining Figure 7 、 Figure 10 and Figure 16 The adapter housing 122 can be provided with a first snap-fit ​​structure 1221, and the core housing 111 can be provided with a second snap-fit ​​structure 1222. The first snap-fit ​​structure 1221 extends into the core housing 111 and engages with the second snap-fit ​​structure 1222, thereby securing the adapter housing 122 to the core housing 111. The direct connection and fixation between the two without the need for other retaining structures is simple and reliable. The first snap-fit ​​structure 1221 can be integrally provided on the adapter housing 122, and two can be spaced apart relative to each other in the thickness direction X. The second snap-fit ​​structure 1222 can be integrally provided on the core inner shell 1111, and be provided in a one-to-one correspondence with the first snap-fit ​​structure 1221.

[0103] As an example, combining Figure 7The earphone 10 may include a flexible circuit board 16. The flexible circuit board 16 may be at least partially disposed within the accommodating cavity 124 to connect with the electronic component 15 and extend into the movement housing 111, thereby connecting the electronic component 15 to the main control circuit board 13 via the flexible circuit board 16. For example, the electronic component 15 is soldered to one end of the flexible circuit board 16 using surface mount technology (SMT), and the other end of the flexible circuit board 16 is fastened to the main control circuit board 13 using a BTB connector. The speaker 112 may be configured to connect to the flexible circuit board 16 along the extension path of the flexible circuit board 16. For example, the leads of the speaker 112 are soldered to the corresponding area of ​​the flexible circuit board 16, thereby connecting the speaker 112 to the main control circuit board 13 via the flexible circuit board 16. This eliminates the need for the leads of the speaker 112 to extend to connect to the main circuit board 13. This helps simplify the wiring structure of the earphone 10 and reduces production costs.

[0104] As an example, combining Figure 16 and Figure 15 The adapter shell 122 may be pre-formed with a through hole 1251 that communicates with the accommodating cavity 124. The electronic component 15 may include an electrode terminal 151 that is at least partially disposed in the through hole 1251. The electrode terminal 151 may be a retractable elastic component such as a pogo-PIN, or a non-retractable rigid component such as a metal column. The aperture of the through hole 1251 may be larger than the outer diameter of the electrode terminal 151 to facilitate the subsequent installation of the electrode terminal 151. Of course, the electrode terminal 151 may also be integrally formed with the adapter shell 122 in the form of an insert. Furthermore, the electrode terminal 151 may be oriented toward the ear in the worn state, so that it is invisible in the worn state, which is conducive to improving the appearance quality of the earphone 10 in the worn state.

[0105] It should be noted that: when the electrode terminal 151 is set as a retractable elastic component such as a pogo-PIN, the extension direction of the electrode terminal 151 can be its retractable direction; and when the electrode terminal 151 is set as a non-retractable rigid component such as a metal column, the extension direction of the electrode terminal 151 can be the direction of its axis.

[0106] Furthermore, multiple electrode terminals 151 can be provided according to actual usage requirements, such as for charging, detection, etc.

[0107] In some embodiments, the electrode terminal 151 may include a positive charging terminal 1511 and a negative charging terminal 1512 spaced apart from each other. The positive charging terminal 1511 and the negative charging terminal 1512 may be disposed within their respective through-holes 1251, respectively, to facilitate charging of the earphone 10 via the electrode terminal 151. Alternatively, only one of the positive charging terminal 1511 and the negative charging terminal 1512 may be disposed on the adapter housing 122, while the other may be disposed on another housing in the hook-shaped structure 12, such as the battery housing 123, or on the core inner housing 1111.

[0108] In some embodiments, the electrode terminal 151 may include a detection terminal 1513 spaced apart from the positive charging terminal 1511 and the negative charging terminal 1512. The detection terminal 1513 may be used to perform charging detection, detect whether the earphone 10 is placed in or removed from the charging box, and other detection functions. Of course, the detection terminal 1513 may also be replaced by an electronic component such as a Hall sensor.

[0109] In some embodiments, when viewed along the extension direction of the electrode terminal 151 , the connecting lines between the positive charging terminal 1511 , the negative charging terminal 1512 , and the detection terminal 1513 may form a triangle, such as an equilateral triangle.

[0110] In some embodiments, when viewed along the extension direction of the electrode terminal 151, the positive charging terminal 1511, the negative charging terminal 1512, and the detection terminal 1513 can be arranged in a line segment, for example, arranged in a straight line segment, spaced apart from each other. The spacing between the positive charging terminal 1511 and the negative charging terminal 1512 can be greater than the spacing between the negative charging terminal 1512 and the detection terminal 1513. For example, the negative charging terminal 1512 can be located between the positive charging terminal 1511 and the detection terminal 1513, and the spacing between the positive charging terminal 1511 and the negative charging terminal 1512 can be greater than the spacing between the negative charging terminal 1512 and the detection terminal 1513. Another example is when the detection terminal 1513 is located between the positive charging terminal 1511 and the negative charging terminal 1512. In this way, when there is limited space for the electrode terminal 151 on the adapter housing 122, the spacing between the positive charging terminal 1511 and the negative charging terminal 1512 can be maximized, which helps prevent short circuits between the two terminals.

[0111] As an example, combining Figure 15The outer side of the adapter housing 122 may be provided with a boss 126, and a through hole 1251 further penetrates the boss 126, so that multiple electrode terminals 151 are exposed at the bosses 126. In this way, the bosses 126 smooth out the uneven areas of the adapter housing 122 due to a certain curvature, facilitating the installation of the electrode terminals 151. The positive charging terminal 1511, the negative charging terminal 1512, and the detection terminal 1513 may be sequentially spaced along the length of the boss 126.

[0112] As an example, combining Figures 15 to 17 The hook-shaped structure 12 may include a magnet 127. The magnet 127 and the electrode terminal 151 may be exposed on the same side of the adapter housing 122, that is, both may be visible on the same side surface of the adapter housing 122. This allows the magnet 127 to be closer to the outside world, which is the direction of the exposed end of the electrode terminal 151. This shortens the distance between the magnet 127 and the magnetic attraction structure in a charging device such as a charging case, or the distance between the Hall effect sensor and the magnet 127. This helps improve the reliability of functions such as charging and detection. The magnet 127 and the electrode terminal 151 may be arranged adjacent to each other, allowing the magnet 127 to mate with the magnetic attraction structure in a charging device such as a charging case, so that the electrode terminal 151 mates with the electrode terminal in the charging device to facilitate charging. Accordingly, the boss 126 may protrude from the adapter housing 122 surrounding the magnet 127, that is, the magnet 127 may be lower than the boss 126, so that the electrode terminal 151 can contact the electrode terminal in a charging device such as a charging case. Of course, in an embodiment in which the magnet 127 is used in conjunction with a Hall sensor in a charging device such as a charging box for detection, the magnet 127 is arranged adjacent to the electrode terminal 151, and the electrode terminal in the charging device such as the charging box for cooperating with the electrode terminal 151 can also be arranged adjacent to the aforementioned Hall sensor. This is conducive to reducing the area in the charging device such as the charging box for carrying the aforementioned electrode terminal and the aforementioned Hall sensor.

[0113] Furthermore, the hook-shaped structure 12 may include a flexible covering 128, the hardness of which is less than that of the adapter housing 122. The adapter housing 122 may be made of plastic; the flexible covering 128 may be made of silicone, rubber, or other materials and may be formed on the adapter housing 122 through injection molding, gluing, or other methods. Furthermore, the flexible covering 128 may cover the adapter housing 122 and the magnet 127, preventing the magnet 127 from being exposed while the electrode terminal 151 is exposed. This means that the magnet 127 is invisible while the electrode terminal 151 is visible. This ensures the proper use of the electrode terminal 151 while shielding the magnet 127 from wear and tear, preventing it from being exposed and affecting its appearance. Furthermore, the flexible covering 128 improves the comfort of the earphone 10 when worn. The thickness of the flexible covering 128 is less than that of the adapter housing 122.

[0114] As an example, combining Figure 16 The adapter housing 122 can be pre-formed with a blind hole 1252 that is not connected to the accommodating chamber 124 to enhance the waterproof and dustproof performance of the accommodating chamber 124. The magnet 127 can be disposed at least within the blind hole 1252 and exposed through the open end of the blind hole 1252. This not only helps reduce the thickness of the adapter housing 122 in the area where the magnet 127 is located, but also helps improve the appearance of the earphone 10 in the area where the magnet 127 is located. Of course, the blind hole 1252 can also be configured as a through hole.

[0115] As an example, combining Figure 15 Observed along the extension direction of the electrode terminals 151, the multiple electrode terminals 151 can be arranged spaced apart to form a line segment, such as a straight line segment or a broken line segment. The magnet 127 can be located on either side of the line segment, or the magnet 127 can intersect the line segment and be at least partially located between any two adjacent electrode terminals 151. For example, there can be one magnet 127, with the magnet 127 being located entirely on one side of the line segment, or intersecting the line segment and being located entirely between any two adjacent electrode terminals 151. Another example can be two magnets 127, with one magnet 127 being located entirely on one side of the line segment and the other magnet 127 being located entirely on the other side of the line segment. Another example can be one magnet 127, with a portion of the magnet 127 intersecting the line segment and being located between any two adjacent electrode terminals 151, while the remaining portion is located below the electrode terminal 151 along the extension direction.

[0116] As an example, combining Figure 15, the multiple electrode terminals 151 may include a charging positive terminal 1511, a charging negative terminal 1512 and a detection terminal 1513 arranged in a straight line segment. Among them, the magnet 127 can be located on one side of the aforementioned straight line segment. Further, observed along the extension direction of the electrode terminal 151, the center of the magnet 127 has a first distance, a second distance and a third distance from the center of the charging positive terminal 1511, the charging negative terminal 1512 and the detection terminal 1513, respectively, and the third distance is greater than the first distance and the second distance, respectively, to prioritize the reliability of charging. It is worth noting that: in the embodiment where the hook-shaped structure 12 is provided with a flexible covering 128, in order to facilitate the determination of the relative positional relationship between the magnet 127, the charging positive terminal 1511, the charging negative terminal 1512 and the detection terminal 1513, the flexible covering 128 can be removed first.

[0117] As an example, combining Figures 16 to 18 The electronic component 15 may include an electrode terminal 151 and a microphone 152, and the adapter shell 122 may be pre-formed with a through hole 1251 and a through hole 1253 that are connected to the accommodating cavity 124 and respectively communicate with the accommodating cavity 124. Since the electrode terminal 151 and the microphone 152 have different functions, the through hole 1251 and the through hole 1253 may be located on different side walls of the adapter shell 122. Based on this, the electrode terminal 151 may be at least partially disposed in the through hole 1251, and the microphone 152 may be disposed in the accommodating cavity 124, and pick up sounds outside the earphone 10 (such as user voice, ambient sound) via the through hole 1253. In this way, by reasonably arranging the relative positions of the electrode terminal 151 and the microphone 152, the space of the accommodating cavity 124 can be fully utilized, and the structure of the earphone 10 is therefore more compact and compact. Furthermore, the earphone 10 may include a support assembly 17 at least partially disposed within the accommodating cavity 124. The support assembly 17 can respectively support and secure the electrode terminals 151 and the microphone 152 to the sidewalls corresponding to the through-holes 1251 and 1253. This not only helps prevent the electrode terminals 151 and the microphone 152 from separating from the adapter housing 122, but also helps improve the waterproof and dustproof performance of the electronic component 15, while also maintaining a simple and reliable structure.

[0118] As an example, combining Figure 18The flexible circuit board 16 may include a first circuit board portion 161, a second circuit board portion 162, and a third circuit board portion 163, all in an integrated structure. The electrode terminal 151 is soldered to the first circuit board portion 161, and the second circuit board portion 162 is bent relative to the first circuit board portion 161. The microphone 152 is soldered to the third circuit board portion 163 and also bent relative to the second circuit board portion 162. In other words, after the flexible circuit board 16 is bent twice, the first circuit board portion 161, the second circuit board portion 162, and the third circuit board portion 163 correspond to three adjacent sides of the hexagonal structure. The end of the second circuit board portion 162 away from the third circuit board portion 163 is connected to the first circuit board portion 161, while the rest of the second circuit board portion 162 is not connected to the first circuit board portion 161. In this way, after the flexible circuit board 16 and the electrode terminals 151 and microphone 152 thereon are assembled in the adapter shell 122, the operator is allowed to first press the end of the second circuit board portion 162 connected to the first circuit board portion 161 so that it is as flush as possible with the first circuit board portion 161 to avoid the support component 17 that is assembled subsequently.

[0119] In some embodiments, the adapter housing 122 may include two housings whose parting surfaces are perpendicular to the extension direction of the electrode terminal 151, and the two housings are buckled together to form the accommodating cavity 124. The support assembly 17 may be integrally formed with one of the housings to respectively support (or press) the electrode terminal 151 and the microphone 152 when the two are buckled together. Alternatively, at least one of the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 may be independent of the adapter housing 122 to respectively support (or press) the electrode terminal 151 and the microphone 152 when the two housings are buckled together, or the support assembly 17 may be assembled after the two housings are buckled together to respectively support (or press) the electrode terminal 151 and the microphone 152.

[0120] In some embodiments, at least the portion of the adapter housing 122 corresponding to the accommodating cavity 124 is a complete housing structure. Of the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17, at least the first support member can be independent of the adapter housing 122 to facilitate assembly of the electrode terminal 151.

[0121] As an example, combining Figure 18 , the support assembly 17 can be independent of the adapter housing 122 and inserted into the accommodating cavity 124. In this way, since the support assembly 17, electrode terminals 151 and microphone 152 can be independent of the adapter housing 122, they can be assembled in a certain order, which helps to avoid unnecessary structural interference and improve assembly efficiency.

[0122] In some embodiments, the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 can be independent of the adapter housing 122. That is, the first support member and the second support member are independent of each other to respectively support (or press) the electrode terminal 151 and the microphone 152. This allows the first support member and the second support member in the support assembly 17 to be designed differently according to actual needs.

[0123] In some embodiments, the support assembly 17 can be an integrally formed structural member, that is, the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 are connected to each other, which is not only conducive to simplifying the structure of the support assembly 17, but also helps to avoid the first support member and the second support member being difficult to assemble due to being too small. Among them, the support assembly 17 can be tightly fixed with the cavity wall of the accommodating cavity 124 after being inserted into place, that is, there is a certain damping during the insertion or removal of the support assembly 17, and the structure is simple and reliable. Accordingly, the cavity wall of the accommodating cavity 124 can be provided with guide grooves and limit grooves that cooperate with the support assembly 17. Of course, the support assembly 17 can also be further bonded to the cavity wall of the accommodating cavity 124 by means of a glue dispensing process.

[0124] As an example, combining Figure 17 and Figure 18 , at least part of the support assembly 17 and the accommodating cavity 124 are perpendicular to the insertion direction of the support assembly 17 relative to the accommodating cavity 124 (for example Figure 17 and Figure 18 The dimensions of at least one reference direction (in the direction indicated by the arrow in the figure) can be configured to gradually decrease along the aforementioned insertion direction, so as to facilitate the extension of the support assembly 17 into the space between the electrode terminal 151 and the microphone 152. In other words, the dimensions of at least a portion of the support assembly 17 in at least one reference direction perpendicular to the aforementioned insertion direction can be configured to gradually decrease along the aforementioned insertion direction, and the dimensions of at least a portion of the accommodating cavity 124 in the same reference direction can be configured to gradually decrease along the aforementioned insertion direction, with the two changing trends being the same or similar. This facilitates a tight fit and fixation of the support assembly 17 with the wall of the accommodating cavity 124 after insertion.

[0125] As an example, combining Figures 16 to 18The cavity wall of the accommodating cavity 124 may include a first cavity wall 1241 and a second cavity wall 1242 arranged side by side and spaced apart from each other, and a third cavity wall 1243 connecting the first cavity wall 1241 and the second cavity wall 1242. The through hole 1251 may be provided on the first cavity wall 1241, and the through hole 1253 may be provided on the third cavity wall 1243. Accordingly, the support assembly 17 may include a bottom plate 171 and a first side plate 172 connected to the bottom plate 171, for example, in an L-shaped structure. One main surface of the bottom plate 171 may be disposed opposite the first cavity wall 1241 and support the electrode terminal 151; one main surface of the first side plate 172 may be disposed opposite the third cavity wall 1243 and support the microphone 152. In this way, after the electrode terminal 151 and the microphone 152 are assembled in place, the support assembly 17 is inserted into the accommodating cavity 124 along the above-mentioned insertion direction and after being inserted into place, the electrode terminal 151 and the microphone 152 can be supported respectively by the bottom plate 171 and the first side plate 172.

[0126] Furthermore, the orthographic projection of the microphone 152 on the first cavity wall 1241 can cover at least a portion of the electrode terminal 151 , for example, the microphone 152 covers a portion of the positive charging terminal 1511 , which helps to make the structures of each part more compact.

[0127] In some embodiments, the dimensions of at least a portion of the bottom plate 171 and the accommodating cavity 124 in a first reference direction RD1, which is perpendicular to the insertion direction and parallel to one main surface of the bottom plate 171, can be configured to gradually decrease along the insertion direction. That is, one of the front and rear ends of the bottom plate 171 in the insertion direction, or a portion between the front and rear ends, can be configured to maintain the dimensions in the first reference direction RD1 unchanged along the insertion direction. The dimensions of the first side plate 172 and the accommodating cavity 124 in a second reference direction RD2, which is perpendicular to the insertion direction and parallel to one main surface of the first side plate 172, can be configured to remain unchanged along the insertion direction.

[0128] In some embodiments, the dimensions of at least a portion of the first side plate 172 and the accommodating cavity 124 in a second reference direction RD2, which is perpendicular to the insertion direction and parallel to one main surface of the first side plate 172, can be configured to gradually decrease along the insertion direction. That is, one of the front end and rear end of the first side plate 172 in the insertion direction, or a portion between the front end and rear end, can be configured to maintain a constant dimension in the second reference direction RD2 along the insertion direction. The dimensions of the bottom plate 171 and the accommodating cavity 124 in the first reference direction RD1, which is perpendicular to the insertion direction and parallel to one main surface of the bottom plate 171, can be configured to remain constant along the insertion direction.

[0129] In some embodiments, the dimensions of at least a portion of the first side plate 172 and the accommodating cavity 124 in the second reference direction RD2 perpendicular to the above-mentioned insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to gradually decrease along the above-mentioned insertion direction, and the dimensions of at least a portion of the first side plate 172 and the accommodating cavity 124 in the second reference direction RD2 perpendicular to the above-mentioned insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to gradually decrease along the above-mentioned insertion direction.

[0130] It should be noted that for the support assembly 17 , the size of the bottom plate 171 in the first reference direction RD1 can be simply regarded as the width of the bottom plate 171 , and the size of the first side plate 172 in the second reference direction RD2 can be simply regarded as the height of the first side plate 172 .

[0131] As an example, combining Figures 16 to 18 The support assembly 17 may include a second side plate 173 connected to the bottom plate 171. The second side plate 173 and the first side plate 172 are arranged side by side and spaced apart on the same side of the bottom plate 171. The second side plate 173 abuts the second cavity wall 1242 to provide support force for the bottom plate 171 toward the electrode terminal 151, which helps improve the support effect of the support assembly 17 on the electrode terminal 151. In an embodiment where the electrode terminal 151 includes a positive charging terminal 1511 and a negative charging terminal 1512 spaced apart from each other in a direction perpendicular to the insertion direction, the second side plate 173 may be located between the positive charging terminal 1511 and the negative charging terminal 1512 to ensure uniform force on various parts of the electrode terminal 151, which helps further improve the support effect of the support assembly 17 on the electrode terminal 151.

[0132] As an example, combining Figures 16 to 18 The cavity wall of the accommodating cavity 124 may include a fourth cavity wall 1244 connecting the first cavity wall 1241 and the second cavity wall 1242 and opposite to the third cavity wall 1243. The first cavity wall 1241 and the second cavity wall 1242 may be generally configured as a planar structure parallel to each other, and the third cavity wall 1243 and the fourth cavity wall 1244 may be generally configured as an arcuate structure that expands outward from each other, so as to maximize the volume of the accommodating cavity 124 when the volume of the adapter housing 122 is limited. Accordingly, the support assembly 17 may include a third side plate 174 connected to the bottom plate 171. The first side plate 172 and the third side plate 174 are respectively located at the two side edges of the bottom plate 171 in a direction perpendicular to the above-mentioned insertion direction, 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 abuts against the fourth cavity wall 1244 to provide a supporting force for the first side plate 172 toward the microphone 152 , which is beneficial to improving the supporting effect of the supporting assembly 17 on the microphone 152 .

[0133] Furthermore, relative to the bottom 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, respectively. This facilitates contact between the second side plate 173 and the second cavity wall 1242, and between the third side plate 174 and the fourth cavity wall 1244. Since the second and third side plates 173 and 174 do not directly contact either the electrode terminal 151 or the microphone 152, they can also serve as guides during insertion of the support assembly 17 into the accommodating cavity 124. Accordingly, since the second side plate 173 is relatively tall, the support assembly 17 can include reinforcing ribs 175 connecting the second side plate 173 and the bottom plate 171. The reinforcing ribs 175 can be disposed on opposite sides of the second side plate 173 facing the first and third side plates 172 and 174.

[0134] As an example, combining Figures 15 to 17 and Figure 9 The hook-shaped structure 12 may include an elastic wire 121, an adapter housing 122, a battery housing 123, and a wire 129. The ends of the elastic wire 121 and the wire 129 may be connected to the adapter housing 122 and the battery housing 123, respectively, so that the wire 129 extends along the elastic wire 121 and is threaded through the adapter housing 122 and the battery housing 123. Of course, the wire 129 may also be threaded through the preset threading channel after the elastic wire 121 is connected to the adapter housing 122 and the battery housing 123. The battery 14 may be disposed within the battery housing 123 and connected to the flexible circuit board 16 via the wire 129. This further simplifies the wiring structure of the earphone 10 and reduces production costs. In other words, components of the hook-shaped structure 12, such as the electrode terminals 151, the microphone 152, and the battery 14, may all be connected to the main control circuit board 13 via the flexible circuit board 16.

[0135] Furthermore, the flexible covering 128 can further cover at least the exposed parts of the elastic metal wire 121 and the wire 129 , as well as at least a part of the battery 123 , so that the wire 129 is exposed, which is beneficial to improving the appearance quality of the earphone 10 .

[0136] It should be noted that the adapter shell 122 can also be used as a part of the structure of the movement shell 111, for example, the adapter shell 122 is integrally formed with the movement inner shell 1111, and another example is that a part of the adapter shell 122 is integrally formed with the movement inner shell 1111 and the remaining part is integrally formed with the movement outer shell 1112. Among them, other parts of the hook-shaped structure 12 except the adapter shell 122, such as the end of the elastic metal wire 121 away from the battery shell 123, and another example is the battery shell 123, are fixedly connected to the movement module 11 with the adapter shell 122 at the adapter shell 122, such as plug-in fixation. Correspondingly, structural components such as the electrode terminal 151, the microphone 152 and the magnet 127 are also adjusted in position accordingly, which will not be repeated here.

[0137] Based on the above-mentioned related description, the present application provides a shell assembly, which may include a plastic shell, a metal functional pattern and a silicone coating. The metal functional pattern is arranged on the outside of the plastic shell, and the silicone coating can be covered on the side of the metal functional pattern facing away from the plastic shell and on the plastic shell not covered by the metal functional pattern by integral injection molding, glue connection, etc. In this way, compared with the metal functional pattern being arranged on the inner side of the plastic shell facing away from the silicone coating, the metal functional pattern is arranged on the outer side of the plastic shell facing the silicone coating, so that it is further away from the interference of other electronic components in the shell assembly, or closer to the signal trigger source outside the shell assembly, thereby increasing the anti-interference and sensitivity of the metal functional pattern. Among them, the structure of the plastic shell can be the same or similar to that of the movement shell 111 or its movement shell 1112, and the structure of the silicone coating can be the same or similar to that of the flexible coating 1132, which will not be repeated here.

[0138] In some embodiments, the metal functional pattern can be configured as an antenna pattern 1141 or a touch pattern 1142. The antenna pattern 1141 is configured on the outside of the plastic housing to increase the distance between it and other electronic components within the plastic housing, thereby increasing the antenna clearance area and improving the anti-interference performance of the antenna pattern 1141. The touch pattern 1142 is configured on the outside of the plastic housing to shorten the distance between it and an external signal trigger source (e.g., a user's finger), thereby reducing the touch distance and increasing the sensitivity of the touch pattern 1142 to being triggered by the user.

[0139] In some embodiments, the metal functional pattern may include an antenna pattern 1141 and a touch pattern 1142. The antenna pattern 1141 may surround the touch pattern 1142 to fully utilize the space outside the plastic housing. The antenna pattern 1141 may be U-shaped, and the touch pattern 1142 may be square.

[0140] In some embodiments, the thickness of the silicone coating can be thinner than that of the plastic housing, so that the silicone coating shields and protects the metal functional pattern while further increasing the anti-interference and sensitivity of the metal functional pattern and reducing the volume of the housing assembly.

[0141] As an example, the housing assembly can serve as a core housing for accommodating the speaker 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, and will not be repeated here.

[0142] Furthermore, in addition to being applied to headphones 10, the shell assembly can also be applied to other electronic devices such as smart glasses. Among them, the electronic device may include a movement module provided with a speaker 112, and may also include a main control circuit board 13, and a speaker 112 and a battery 14 respectively coupled to the main control circuit board 13; the shell assembly can be used to accommodate at least one of the electronic components such as the speaker 112, the main control circuit board 13 and the battery 14, and can also be used to support the speaker 112 in the electronic device to be located in the corresponding wearing position. It is worth noting that for electronic devices such as headphones and smart glasses based on the bone conduction principle, the speaker 112 can be adaptively adjusted to a bone conduction speaker. The basic structure of the bone conduction speaker is well known to those skilled in the art and will not be repeated here.

[0143] The present application provides a housing assembly that may include a first housing, an electrode terminal 151, a magnet 127, and a flexible covering 128. The electrode terminal 151 and the magnet 127 are exposed on the same side of the first housing. The flexible covering 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 while the electrode terminal 151 is exposed. Thus, compared to a case where the magnet 127 is disposed within the first housing, the present technical solution places the magnet 127 closer to the outside world, toward which the exposed end of the electrode terminal 151 faces. This shortens the distance between the magnet 127 and the magnetic attraction structure in a charging device such as a charging case, or the distance between the magnet 127 and the Hall effect sensor in a charging device such as a charging case. This helps improve the reliability of functions such as charging and detection. Therefore, the housing assembly can be applied to both power-receiving devices such as earphones 10 and smart glasses, and charging devices such as charging cases. In other words, the electronic device can be either a power-receiving device or a charging device. For ease of description, the first housing may be an adapter housing 122.

[0144] In some embodiments, the first housing may be provided with a through hole 1251 and a blind hole 1252. The electrode terminal 151 may be at least partially disposed within the through hole 1251, and the magnet 127 may be at least partially disposed within the blind hole 1252, exposed through the open end of the blind hole 1252. This not only helps reduce the thickness of the first housing in the area where the magnet 127 is located, but also helps improve the appearance of the first housing in the area where the magnet 127 is located. Of course, the blind hole 1252 may also be provided as a through hole.

[0145] In some embodiments, a boss 126 may be provided on the outside of the first housing. The boss 126 is positioned adjacent to the magnet 127 and protrudes from the first housing surrounding the magnet 127. A through hole 1251 further extends through the boss 126, exposing the plurality of electrode terminals 151 at the bosses 126. This smoothes out any uneven curvature of the first housing, facilitating the placement of the electrode terminals 151. The boss 126 may be configured in an elongated strip shape, resulting in a simple and reliable structure.

[0146] In some embodiments, the housing assembly may include a flexible circuit board 16, and the electrode terminals 151 are connected to the flexible circuit board 16 to simplify the routing of the electrode terminals 151. The first housing may be formed with a receiving cavity 124, and at least a portion of the flexible circuit board 16 may be disposed within the receiving cavity 124. The through holes 1251 communicate with the receiving cavity 124, while the blind holes 1252 do not communicate with the receiving cavity 124, thereby improving the waterproof and dustproof performance of the first housing.

[0147] In some embodiments, the housing assembly may include a second housing, an elastic wire 121, and a wire 129. The ends of the elastic wire 121 and the wire 129 may be connected to the first housing and the second housing, respectively, so that the wire 129 extends along the elastic wire 121 and is inserted into the first housing and the second housing. For ease of description, the second housing may be a battery housing 123. Furthermore, a battery 14 is disposed in the second housing, and the battery 14 is connected to the flexible circuit board 16 via the wire 129, that is, the battery 14 and the electrode terminal 151 are both connected to the flexible circuit board 16 to simplify wiring. Accordingly, the flexible covering 128 further covers at least the elastic wire 121 and the wire 129 so that the wire 129 is exposed.

[0148] In some embodiments, the housing assembly can be used for earphones 10 and can include a third housing for accommodating a speaker 112 , the third housing being plugged and fixed to the first housing. For ease of description, the third housing can be the core housing 111 .

[0149] The present application provides a housing assembly, which may include a first housing, an electrode terminal 151, a microphone 152, and a support assembly 17. The first housing may be provided with a receiving cavity 124, and through-holes 1251 and 1253, respectively communicating with the receiving cavity 124. Through-holes 1251 and 1253 are located on different sidewalls of the first housing. The electrode terminal 151 may be at least partially disposed within through-hole 1251, and the microphone 152 may be disposed within the receiving cavity 124 and pick up sound outside the housing assembly via through-hole 1253. Furthermore, the support assembly 17 may be disposed within the receiving cavity 124 and may support and secure the electrode terminal 151 and microphone 152 to the sidewalls corresponding to through-holes 1251 and 1253, respectively. This arrangement not only helps prevent the electrode terminal 151 and microphone 152 from separating from the first housing, but also enhances the waterproof and dustproof properties of the electrode terminal 151 and microphone 152, while maintaining a simple and reliable structure. For the convenience of description, the first shell can be the adapter shell 122 , the core shell 111 , or a shell structure in which the core shell 111 and the adapter shell 122 are integrally formed.

[0150] In some embodiments, the support assembly 17 can be independent of the first shell and inserted into the accommodating cavity 124 .

[0151] In some embodiments, the support assembly 17 may be an integrally formed structural member.

[0152] In some embodiments, the housing assembly can be used for the earphone 10 and can include a third housing for accommodating the speaker 112 , the third housing being plugged and fixed to the first housing. The first housing can be the adapter housing 122 , and the third housing can be the core housing 111 .

[0153] Furthermore, in addition to being applied to headphones 10, the shell assembly can also be applied to other electronic devices such as smart glasses. Among them, the electronic device may include a main control circuit board 13, and a speaker 112 and a battery 14 respectively coupled to the main control circuit board 13; the shell assembly can be used to accommodate at least one of the electronic components such as the speaker 112, the main control circuit board 13 and the battery 14, and can also be used to support the speaker 112 in the electronic device to be located in the corresponding wearing position. It is worth noting that for electronic devices such as headphones and smart glasses based on the bone conduction principle, the speaker 112 can be adaptively adjusted to a bone conduction speaker. The basic structure of the bone conduction speaker is well known to those skilled in the art and will not be repeated here.

[0154] As an example, combining Figure 19 、 Figure 4 and Figure 3The earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11. The movement module 11 may be located on the front side of the ear in the worn state, and at least part of the hook-shaped structure 12 may be located on the back side of the ear in the worn state. The movement module 11 may have an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X in the worn state. The thickness direction X is defined as the direction in which the movement module 11 approaches or moves away from the ear in the worn state. Furthermore, in the non-worn state, and in the thickness direction X, the hook-shaped structure 12 first extends toward the side of the inner side surface IS away from the outer side surface OS, and then extends to the other side of the inner side surface IS toward the outer side surface OS. With this arrangement, since the hook-like structure 12 first extends in the thickness direction X toward the side of the inner side IS facing away from the outer side OS, a portion of the hook-like structure 12 can be offset from the projection of the core module 11 in a direction perpendicular to the thickness direction X. This allows the upper earlobe of the ear to provide less support to the earphone 10 when worn, which helps improve the wearing comfort of the earphone 10. The hook-like structure 12 then extends in the thickness direction X to the other side of the inner side IS facing the outer side OS, allowing another portion of the hook-like structure 12 to overlap with the projection of the core module 11 in a direction perpendicular to the thickness direction X. This allows other physiological parts of the ear, except the upper earlobe, to provide more support to the earphone 10 when worn, which helps improve the wearing stability of the earphone 10. The aforementioned support force can include the clamping force of the earphone 10 on the ear and the friction between the earphone 10 and the ear (and the surrounding head). In addition, for implementations such as when the free end of the movement module 11 extends into the concha cavity of the ear when worn, such a configuration is also beneficial for the free end of the movement module 11 to extend into the concha cavity when worn.

[0155] In some embodiments, the inner side surface IS may be configured as a plane, wherein in the non-wearing state, the plane where the inner side surface IS is located may intersect with the hook-shaped structure 12 .

[0156] In some embodiments, in the wearing state, the clamping force applied by the hook structure 12 and the movement module 11 on the ear in the thickness direction X, for example, the earphone 10 clamps the ear from the left and right directions of the head, can be used as part of the clamping force of the earphone 10 on the ear. The aforementioned clamping force can be measured with the aid of a dynamometer. For example: wear the earphone 10 on the above-mentioned simulator or the ear of the user, that is, in the wearing state; then fix the dynamometer (for example: Wedo WDF-10 digital push-pull dynamometer, which will not be repeated later) on the side of the movement module 11 away from the ear, then pull the dynamometer and observe; when the side of the movement module 11 facing the ear of the user is just separated from the skin of the ear, read the tension displayed on the dynamometer, and the tension can be simply regarded as the clamping force.

[0157] As an example, combining Figure 19 and Figure 9 , the hook-shaped structure 12 may include an elastic metal wire 121 connected to the movement module 11, at least part of the elastic metal wire 121 may be located on the back side of the ear in the wearing state, and the plane where the elastic metal wire 121 is located may intersect with the inner side surface IS in the non-wearing state. Among them, the elastic metal wire 121 may undergo a certain elastic deformation relative to the movement module 11 in the thickness direction X, so that it can provide a corresponding clamping force. In this way, a part of the hook-shaped structure 12 is allowed to overlap with the projection of the movement module 11 in the direction perpendicular to the thickness direction X, and then in the wearing state, the elastic metal wire 121 clamps the ear and adheres to the ear together with the movement module 11 due to the elastic deformation. It is worth noting that: when the hook-shaped structure 12 includes a coating such as a flexible coating 128, Figure 9 The elastic metal wire 121, the adapter shell 122 and the cover shell 1231 shown in FIG. Figure 19 Of course, in some embodiments, the hook-shaped structure 12 may not include the elastic metal wire 121. For example, a hard plastic part may be used instead of the elastic metal wire 121, and the deformation ability of the hook-shaped structure 12 in various directions may be designed by the material, length, cross-sectional dimensions, etc. of the hard plastic part. This will not be described in detail below.

[0158] In some embodiments, in the non-wearing state, there may be an angle between the plane where the elastic metal wire 121 is located and the inner side surface IS, for example Figure 19 The angle θ formed by the median dividing line ML and the inner side surface IS can be between 15° and 30°. If the angle is too small, the earphone 10 may be unstable due to insufficient clamping force on the ear. If the angle is too large, the earphone 10 may be uncomfortable due to excessive clamping force on the ear. Furthermore, the median dividing line can refer to the axis of the elastic metal wire 121.

[0159] In some embodiments, the diameter of the elastic wire 121 may be between 0.6 mm and 0.8 mm. If the diameter is too small, the elastic wire 121 may not provide sufficient clamping force and may lack structural strength. If the diameter is too large, the elastic wire 121 may not be able to deform elastically and may provide excessive clamping force.

[0160] As an example, combining Figure 19 、 Figure 9 and Figure 7The hook-shaped structure 12 may include a transition shell 122 connecting the elastic metal wire 121 and the movement module 11. At least a portion of the transition shell 122 may be located on the front side of the ear in the worn state. The transition shell 122 extends toward the inner side IS away from the outer side OS in the thickness direction X. This arrangement allows a portion of the hook-shaped structure 12 to be offset from the projection of the movement module 11 in a direction perpendicular to the thickness direction X, so that in the worn state, the upper ear root of the ear can provide less support for the earphone 10. It is worth noting that when the hook-shaped structure 12 includes a coating such as a flexible coating 128, Figure 9 The adapter housing 122 shown in FIG. Figure 19 Not visible in.

[0161] As an example, combining Figure 19 and Figure 9 The hook-shaped structure 12 may include a battery housing 123 connected to the end of the elastic metal wire 121 away from the movement module 11. The battery housing 123 contains a battery 14 coupled to the movement module 11. When not worn, at least a portion of the battery housing 123 may be located between the inner side surface IS and the outer side surface OS in the thickness direction X. When worn, the battery housing 123 may contact the back of the ear and / or the head.

[0162] As an example, combining Figure 19 and Figure 2 , the movement module 11 may have a length direction Y and a width direction Z that are perpendicular to the thickness direction X and orthogonal to each other, and the length of the movement module 11 in the length direction Y may be greater than the width of the movement module 11 in the width direction Z. Among them, the movement module 11 may have an upper side surface US facing away from the external auditory canal of the ear along the width direction Z in the wearing state and a lower side surface LS facing the external auditory canal, and a rear side surface RS connecting the upper side surface US and the lower side surface LS, and the rear side surface RS is located at one end of the length direction Y facing the back of the head in the wearing state. Further, the hook-shaped structure 12 is on a reference plane perpendicular to the width direction Z (for example Figure 19 The median line ML of the orthographic projection on the XY plane) and the orthographic projection of the inner side surface IS on the same reference plane can form a first intersection O1, and the median line ML and the orthographic projection of the rear side surface RS on the same reference plane can form a second intersection O2. The median line ML can pass through the geometric center of the cross section of any point on the hook-shaped structure 12, for example, the median line ML is the axis of the elastic metal wire 121. It is arranged in this way, so that when the orthographic projection of the movement module 11 on the reference plane perpendicular to the thickness direction X is a non-circular structure such as a rounded rectangle, the orthographic projection of the hook-shaped structure 12 along the width direction Z falls on the upper side surface US. It is worth noting that: since the movement module 11 and the hook-shaped structure 12 partially overlap in the width direction, Figure 19The middle dashed line indicates the portion of the medial side IS and the rear side RS that is blocked by the hook-shaped structure 12 .

[0163] In some embodiments, the first intersection O1 and the second intersection O2 are connected to form a first reference line segment O1O2, and the first reference line segment O1O2 can have a first component and a second component in the length direction Y and the thickness direction Z, respectively. The ratio of the first component to the length of the movement module 11 in the length direction Y can be between 0.12 and 0.19, and the ratio of the second component to the thickness of the movement module 11 in the thickness direction X can be between 0.1 and 0.16. This configuration allows the hook structure 12 to have a suitable angle with the inner side surface IS, such as an angle θ between 15° and 30°, thereby allowing the earphone 10 to apply a suitable clamping force to the ear.

[0164] In some embodiments, the farthest point O3 of the midline ML, which is farthest from the inner side surface IS in the thickness direction X, and the first intersection point O1 are connected to form a second reference line segment O1O3. The second reference line segment O1O3 may have a third component and a fourth component in the length direction Y and the thickness direction X, respectively. The ratio of the third component to the length of the movement module 11 in the length direction Y may be between 0.43 and 0.66, and the ratio of the fourth component to the thickness of the movement module 11 in the thickness direction X may be between 0.26 and 0.4. This configuration allows the hook structure 12 to have a suitable angle with the inner side surface IS, such as an angle θ between 15° and 30°, thereby allowing the earphone 10 to apply a suitable clamping force to the ear.

[0165] As an example, combining Figure 3 The earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11. The movement module 11 may be located in front of the ear when worn, and the free end FE of the movement module 11 that is not connected to the hook-shaped structure 12 may extend into the concha cavity of the ear when worn, and at least part of the hook-shaped structure 12 may be located in the back of the ear when worn. The movement module 11 and the hook-shaped structure 12 may jointly clamp the ear region corresponding to the concha cavity with a certain clamping force from the front and back sides of the ear region with which the concha cavity corresponds. If the clamping force is too small, the earphone 10 may be unstable when worn; and if the clamping force is too large, the earphone 10 may be uncomfortable to wear.

[0166] In some embodiments, in the wearing state, the clamping force applied to the ear by the hook structure 12 and the movement module 11 in a direction perpendicular to the thickness direction X, for example, the earphone 10 clamps the ear from the front-to-back direction of the head, can be used as part of the clamping force of the earphone 10 on the ear. The aforementioned clamping force can be measured with the aid of a dynamometer. For example: wear the earphone 10 on the above-mentioned simulator or the user's ear, that is, in the wearing state; then fix the dynamometer to the end of the hook structure 12 away from the movement module 11, then pull the dynamometer and observe; when the side of the hook structure 12 facing the user's ear is just separated from the skin of the ear, read the tension displayed on the dynamometer, and the tension can be simply regarded as the clamping force.

[0167] In some embodiments, when not being worn, corresponding measurement methods can reflect the deformation ability of the hook structure 12 relative to the core module 11, thereby characterizing the clamping force that the earphone 10 can exert on the ear. The aforementioned measurement methods are exemplarily described below.

[0168] As an example, combining Figure 20 and Figure 4 The hook structure 12 and the core module 11 are arranged on a first reference plane perpendicular to the thickness direction X (eg Figure 20 The orthographic projections on the YZ plane in the thickness direction X may not overlap, and the thickness direction X is defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state, so as to allow the earphone 10 to clamp the ear from the front and back directions of the above-mentioned ear area. Among them, there may be a first reference line segment RL1 with the shortest length between the orthographic projection of the hook-shaped structure 12 and the orthographic projection of the movement module 11. It is worth noting that: the orthographic projection of the movement module 11 on the reference plane perpendicular to the thickness direction X may be a rounded rectangle or an ellipse, or a circle or a rounded square. Furthermore, after the movement module 11 is fixed, the hook-shaped structure 12 is at the measurement fixed position P1 along a direction parallel to the first reference line segment RL1 and away from the movement module 11 (for example Figure 20 The measuring fixed position P1 can be defined as the position in the length direction of the hook structure 12 (e.g. Figure 9 The free end of the hook structure 12 not connected to the movement module 11 (for example, Figure 20 Preferably, after the movement module 11 is fixed, the hook structure 12 can have a tensile force between 0.8 N and 5 N after being pulled 5 mm to 10 mm away from the movement module 11 at the measurement fixing position P1 in a direction parallel to the first reference line segment RL1 and away from the movement module 11.

[0169] Furthermore, after the movement module 11 is fixed, the hook structure 12 can have a pulling force between 0.1N and 1.96N after being pulled away from the movement module 11 by a distance of 1mm to 5mm in a direction parallel to the first reference line segment RL1 and away from the movement module 11 at the measurement fixed position P1.

[0170] In some embodiments, when not being worn, the earphone 10 can be fixed on a measuring platform, for example, the movement module 11 can be fixed on a fixture of the measuring platform. In this case, the first reference line segment RL1 can be parallel to the horizontal plane, and the hook structure 12 can be in a suspended state. Based on this, the dynamometer 20 can be fixed on the hook structure 12, for example, the hook of the dynamometer 20 can be hooked or sleeved on the measurement fixed position P1, and the measurement fixed position P1 is thus Figure 20 It is represented as a straight line segment in the figure. Subsequently, the measurement personnel can manually and slowly pull the dynamometer 20, for example, so that the displacement of the dynamometer 20 is d, and the hook structure 12 is correspondingly deformed from the initial position L1 to the measurement position L2, and the tension F under this displacement is recorded. Based on this, at the same measurement fixed position P1, through multiple measurements, the dynamometer 20 has different displacements, and the tension F under the corresponding displacements is recorded, thereby reflecting the deformation ability of the hook structure 12 relative to the movement module 11, and then characterizing the clamping force that the earphone 10 can apply to the ear. Of course, the dynamometer 20 can also be used as part of the measurement platform. After the earphone 10 is fixed, the measurement platform moves the hook structure 12 away from the movement module 11, that is, automatic measurement.

[0171] In some embodiments, when not being worn, the movement module 11 can be pressed against the edge of a tabletop, with the hook structure 12 kept suspended as much as possible. Similarly, the hook of the dynamometer 20 can be hooked or placed on the fixed measurement position P1, and measurements can be performed as described above, which will not be repeated here.

[0172] The following table illustrates the relationship between the tension F and the pull-off distance d at different measurement fixed positions P1. The unit of tension F is N, and the unit of pull-off distance d is mm. Furthermore, in the table below, #1, #2, and #3 represent measurement fixed positions P1 that are 16 mm, 21.5 mm, and 27 mm, respectively, from the free end of the hook structure 12, not connected to the movement module 11, along the length direction of the hook structure 12. It is worth noting that to reduce measurement errors, each tension F can be averaged over multiple measurements, for example, three measurements.

[0173]

[0174] In some embodiments, the length of the first reference line segment RL1 may be between 2 mm and 3 mm. If the length of the first reference line segment RL1 is too short, the earphone 10 may be uncomfortable to wear; if the length of the first reference line segment RL1 is too long, the earphone 10 may be unstable to wear.

[0175] In some embodiments, the distance between the measurement fixing position P1 and the first reference line segment RL1 is less than or equal to 1 mm, so as to allow the measurement fixing position P1 to be as close as possible to the position on the hook structure 12 that is preset to contact the ear.

[0176] In some embodiments, the core module 11 may have a length direction Y and a width direction Z that are perpendicular to the thickness direction X and orthogonal to each other, and the length of the core module 11 in the length direction Y may be greater than the width of the core module 11 in the width direction Z. Figure 21 and Figure 20 The free end FE of the movement module 11 is on a second reference plane perpendicular to the length direction Y (eg Figure 21 The orthographic projection on the XZ plane has a geometric center GC, for example, the geometric center is the center of the circumscribed circle of the aforementioned orthographic projection, and the distance between the measurement fixed position P1 and the 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 arrangement allows the measurement fixed position P1 to be as close as possible to the preset position on the hook structure 12 that contacts the ear. For example: the movement module 11 has an inner side surface IS facing the ear along the thickness direction X and an outer side surface OS away from the ear in the wearing state, as well as an upper side surface US facing the external auditory canal away from the ear along the width direction Z and a lower side surface LS facing the external auditory canal, and the inner side surface IS, the outer side surface OS, the upper side surface US and the lower side surface LS form a geometric figure on the second reference plane, and the geometric center GC is defined as the center of the circumscribed circle of the aforementioned geometric figure.

[0177] As an example, combining Figure 20, the movement module 11 may have a length direction Y and a width direction Z that are perpendicular to the thickness direction X and orthogonal to each other, and the length of the movement module 11 in the length direction Y may be greater than the width of the movement module 11 in the width direction Z. In particular, the movement module 11 may have an upper side surface US facing away from the external auditory canal of the ear along the width direction Z in the wearing state, and a lower side surface LS facing the external auditory canal. Furthermore, a second reference line segment RL2 parallel to the width direction Z and having the longest length may be provided between the orthographic projection of the hook-shaped structure 12 and the orthographic projection of the movement module 11, and the length of the second reference line segment RL2 may 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 movement module 11 may not be able to extend into the concha cavity, and the sound outlet 111a on the movement module 11 may be too far away from the external auditory canal. If the length of the second reference line segment RL2 is too long, the free end FE may not be able to extend into the concha cavity, and the external auditory canal may be excessively blocked by the movement module 11. In other words, this configuration allows the free end FE of the movement module 11 to extend into the concha cavity while ensuring that the sound outlet 111a on the movement module 11 is at an appropriate distance from the external auditory canal. This allows the user to hear more of the sound waves generated by the movement module 11 without blocking the external auditory canal.

[0178] Furthermore, the direction of the first reference line segment RL1 may be parallel to the length direction Y. In other words, when the orthographic projection of the movement module 11 on the reference plane perpendicular to the thickness direction X is set to a rounded rectangle, the distance between the orthographic projection of the hook-shaped structure 12 and the orthographic projection of the movement module 11 in the length direction Y is minimized.

[0179] In some embodiments, the point P3 where the second reference line segment RL2 intersects the orthographic projection of the movement module 11 serves as the starting point of the second reference line segment RL2, and the point P4 where the second reference line segment RL2 intersects the orthographic projection of the hook-shaped structure 12 serves as the end point of the second reference line segment RL2. A third reference line segment RL3, which passes through 1 / 4 of the second reference line segment RL2 and is parallel to the length direction Y, intersects the hook-shaped structure 12 at a first intersection point P5 and a second intersection point P6. The first intersection point P5 is closer to the movement module 11 than the second intersection point P6 in the length direction of the hook-shaped structure 12. Furthermore, 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 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. Such arrangement enables the hook structure 12 and the movement module 11 to exert appropriate clamping force on the ear when the free end FE of the movement module 11 extends into the concha cavity and the sound outlet 111a on the movement module 11 is at an appropriate distance from the external auditory canal.

[0180] As an example, combining Figure 20 and Figure 9 , the hook-shaped structure 12 may include an elastic metal wire 121 connected to the movement module 11 and a battery shell 123 connected to the end of the elastic metal wire 121 away from the movement module 11, and a battery 14 coupled to the movement module 11 is arranged in the battery shell 123. Among them, the extension line of the first reference line segment RL1 can pass through the battery shell 123. In this way, since the part of the hook-shaped structure 12 corresponding to the battery shell 123 is thicker than the part of the hook-shaped structure 12 corresponding to the elastic metal wire 121, the hook-shaped structure 12 can clamp the ear together with the movement module 11 through the battery shell 123, which is conducive to improving the wearing comfort of the earphone 10. Among them, the elastic metal wire 121 can undergo a certain elastic deformation relative to the movement module 11 in a direction perpendicular to the thickness direction X, so that it can provide corresponding clamping force. It is worth noting that: when the hook-shaped structure 12 includes a coating such as a flexible coating 128, Figure 9 The elastic metal wire 121, the adapter shell 122 and the cover shell 1231 shown in FIG. Figure 20 Not visible in.

[0181] In some embodiments, the battery housing 123 may include a cover shell 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the cover shell 1231, and the battery compartment 1232 and the cover shell 1231 cooperate to form a cavity structure for accommodating the battery 14. Among them, the hook-shaped structure 12 may include a flexible coating 128 that at least covers the elastic metal wire 121 and the cover shell 1231, and the hardness of the flexible coating 128 may be less than the hardness of the cover shell 1231. Furthermore, the extension line of the first reference line segment RL1 may pass through the section where the flexible coating 128 overlaps with the cover shell 1231. With such a configuration, the hook-shaped structure 12 further clamps the ear together with the movement module 11 through the flexible coating 128 on the cover shell 1231, which helps to further improve the wearing comfort of the earphone 10.

[0182] In some embodiments, the battery compartment 1232 may be open at one end along the length of the hook-shaped structure 12, with the cover 1231 partially embedded within the open end of the battery compartment 1232. The outer surface area of ​​the cover 1231, measured along a reference cross-section perpendicular to the length of the hook-shaped structure 12, may be smaller than the outer surface area of ​​the battery compartment 1232, i.e., the outer diameter of the cover 1231 may be smaller than the outer diameter of the battery compartment 1232. Furthermore, the flexible cover 128 may not cover the battery compartment 1232, with the outer surface of the flexible cover 128 and the outer surface of the battery compartment 1232 forming a smooth transition to improve the appearance of the earphones 10 when not being worn. In this case, the measurement fixed position P1 may be located at the junction between the flexible cover 128 and the battery compartment 1232. This configuration allows the measurement fixed position P1 to be as close as possible to the predetermined ear contact position on the hook-shaped structure 12.

[0183] As an example, combining Figure 3 and Figure 9 The earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11. The hook-shaped structure 12 may include a battery housing 123, within which a battery 14 coupled to the movement module 11 is located. The movement module 11 can be positioned in front of the ear when worn, and the free end FE of the movement module 11 not connected to the hook-shaped structure 12 can extend into the concha cavity of the ear when worn. At least a portion of the hook-shaped structure 12 can be positioned behind the ear when worn. Furthermore, the movement module 11 and the battery housing 123 can jointly clamp the ear region corresponding to the concha cavity from both the front and back sides of the ear region, allowing the earphone 10 to be worn stably and comfortably. The battery housing 123 can also contact the skin of the head surrounding the ear, increasing the contact area between the battery housing 123 and the user's skin. This allows the user to be aware of the earphone 10 when wearing it stably and comfortably, providing a sense of stability and enhancing the wearing experience. In addition, since the contact area between the earphone 10 and the user's skin is increased, it is also helpful to reduce the risk of the earphone 10 slipping off the ear when the user lowers, raises, or shakes his head.

[0184] In some embodiments, the maximum area of ​​the outer surface of the battery housing 123 on a reference cross section perpendicular to the length direction of the hook structure 12 may be between 60 mm and 100 mm. 2 With 100mm 2If the maximum area is too small, the battery housing 123 may have difficulty contacting the skin of the head outside the ear, and the capacity of the battery 14 may be insufficient to meet the battery life requirements of the earphone 10. If the maximum area is too large, the battery housing 123 may be too visible from the front of the ear, thereby affecting the appearance quality of the earphone 10 when worn.

[0185] As an example, combining Figure 9 The battery housing 123 may include a cover shell 1231 and a battery compartment 1232 connected to the cover shell 1231. One end of the battery compartment 1232 in the length direction of the hook-shaped structure 12 may be open, and the cover shell 1231 may be partially embedded in the open end of the battery compartment 1232 to form a cavity structure for accommodating the battery 14. The area of ​​the outer surface of the cover shell 1231 on a reference cross-section perpendicular to the length direction of the hook-shaped structure 12 gradually increases along the length direction of the hook-shaped structure 12 and in the positive direction close to the battery compartment 1232. In other words, the hook-shaped structure 12 may be configured as a tapered structure at the cover shell 1231. This helps to alleviate the difference in outer diameter between the battery compartment 1232 and other parts of the hook-shaped structure 12 (such as the elastic metal wire 121), making the overall appearance of the hook-shaped structure 12 smoother and more symmetrical. Furthermore, the cover 1231 can contact the ear region to clamp the ear with the movement module 11, and the battery compartment 1232 can contact the head skin outside 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 contact the skin at different physiological locations.

[0186] In some embodiments, the contact area between the cover 1231 and the skin around the ear can be smaller than the contact area between the battery compartment 1232 and the skin around the ear. This allows the cover 1231 to avoid excessive contact between the battery housing 123 and the skin around the ear when the cover 1231 and the movement module 11 are clamped around the ear. In other words, different parts of the battery housing 123 can have different design intentions. Therefore, the cover 1231 does not need to make contact with the skin around the ear.

[0187] In some embodiments, the hook-shaped structure 12 may include an elastic metal wire 121 connecting the movement module 11 and the cover 1231, and a flexible covering 128 that covers at least the elastic metal wire 121 and the cover 1231. The cover 1231 may contact the ear region through the flexible covering 128 to improve the wearing comfort of the earphone 10. The flexible covering 128 may not cover the battery compartment 1232. This helps reduce the risk of the hook-shaped structure 12 being too thick at the battery compartment 1232 and thus being exposed too much from the front of the ear, thereby improving the appearance of the earphone 10 when being worn. Furthermore, the outer surface of the flexible covering 128 may smoothly transition with the outer surface of the battery compartment 1232 to improve the appearance of the earphone 10 when not being worn.

[0188] In some embodiments, the movement module 11 may have an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X in the wearing state, and the thickness direction X is defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state. In the non-wearing state, at least part of the battery housing 123 is located between the inner side surface IS and the outer side surface OS in the thickness direction X, so that the clamping force of the earphone 10 on the ear is mainly manifested as positive pressure, which is conducive to improving the wearing comfort of the earphone 10. Furthermore, the movement module 11 may have a length direction Y and a width direction Z that are perpendicular to the thickness direction X and orthogonal to each other, and the length of the movement module 11 in the length direction Y may be greater than the width of the movement module 11 in the width direction Z. Among them, the orthographic projection of the cover shell 1231 along the length direction Y and the orthographic projection of the movement module 11 along the length direction Y can at least partially overlap, and the orthographic projection of the battery compartment 1232 along the length direction Y and the orthographic projection of the movement module 11 along the length direction Y can at least partially not overlap, so as to allow the hook structure 12 to mainly clamp the ear together with the movement module 11 at the cover shell 1231.

[0189] As an example, combining Figure 22 、 Figure 9 and Figure 3 The earphone 10 may include a core module 11 and a hook structure 12 connected to the core module 11. The core module 11 may be located in front of the ear when worn, and at least part of the hook structure 12 may be located in the back of the ear when worn. The hook structure 12 and the core module 11 are located on a reference plane perpendicular to the thickness direction X (e.g. Figure 22The orthographic projections on the YZ plane (in the middle YZ plane) may not overlap, and the thickness direction X is defined as the direction in which the movement module 11 moves closer to or further away from the ear when worn. Furthermore, the hook-shaped structure 12 may include a battery housing 123 and a flexible covering 128. The battery housing 123 houses a battery 14 coupled to the movement module 11 and may include a cover 1231 and a battery compartment 1232 connected to the cover 1231. The flexible covering 128 may cover the cover 1231. A first reference line segment RL1 having the shortest length may be defined between the orthographic projection of the hook-shaped structure 12 and the orthographic projection of the movement module 11. The point where the first reference line segment RL1 intersects the orthographic projection of the hook-shaped structure 12 may be located in the section where the flexible covering 128 overlaps the cover 1231. In other words, the hook-shaped structure 12 can contact the back of the ear through the cover 1231 and the flexible covering 128 thereon, thereby clamping the ear together with the movement module 11, thereby improving the wearing comfort of the earphone 10. It is worth noting that the orthographic projection of the movement module 11 on the reference plane perpendicular to the thickness direction X can be a rounded rectangle or an ellipse, or a circle or a rounded square.

[0190] In some embodiments, when worn, the clamping force applied by the hook structure 12 and the movement module 11 on the ear in the thickness direction X, for example, the earphone 10 clamps the ear from the left and right directions of the head, can serve as part of the clamping force of the earphone 10 on the ear.

[0191] In some embodiments, when worn, the hook structure 12 and the movement module 11 apply a clamping force to the ear in a direction perpendicular to the thickness direction X, for example, the earphone 10 clamps the ear from the front-to-back direction of the head, which can serve as part of the clamping force of the earphone 10 on the ear.

[0192] In some embodiments, when not in use, the earphone 10 is positioned on a reference plane perpendicular to the thickness direction X (e.g. Figure 22 A second reference line RL2 parallel to the first reference line segment RL1 may be provided on the YZ plane. The second reference line RL2 intersects the orthographic projection of the battery housing 123 and is farthest from the first reference line segment RL1. Based on this, the edge of the orthographic projection of the hook-shaped structure 12 facing the movement module 11 may have a maximum distance from the second reference line RL2, for example Figure 22The maximum distance can be between 34 mm and 52 mm. If the maximum distance is too short, the battery 14 may have insufficient capacity, making it difficult to meet the required battery life of the headset 10. If the maximum distance is too long, the hook structure 12 may be too visible from the front of the ear due to the length of the battery housing 123, affecting the appearance of the headset 10 when worn. The hook structure 12 may also interfere with the earlobe or nearby earrings, particularly for female users, thus affecting user experience.

[0193] In some embodiments, when worn, the distance between the free end of the hook structure 12 not connected to the movement module 11 and the upper ear root of the ear on the vertical axis of the human body (for example Figure 3 The distance (shown as V1 in the figure) can be between 37mm and 56mm. If the aforementioned distance is too small, the battery 14 capacity may be insufficient, making it difficult to meet the required battery life of the earphone 10. If the aforementioned distance is too large, not only will the hook structure 12 be easily visible from the front of the ear due to the excessive length of the battery housing 123, thereby affecting the appearance quality of the earphone 10 when worn, but it may also easily cause the hook structure 12 to interfere with the user's earlobe or earrings nearby, especially for female users, thus affecting the user's experience.

[0194] In some embodiments, in the wearing state, the distance between the free end of the hook structure 12 not connected to the movement module 11 and the edge of the earlobe on the vertical axis of the human body (for example Figure 3 If the distance is too large, the capacity of the battery 14 may be insufficient and the battery life of the headset 10 may not be met.

[0195] In some embodiments, the length of the battery compartment 1232 in the length direction of the hook structure 12 can be between 10 mm and 20 mm. This configuration can take into account both the battery life of the headset 10 and its appearance quality when worn.

[0196] In some embodiments, the battery compartment 1232 may be provided in a hollow cylindrical shape, and the area of ​​the outer surface of the battery compartment 1232 on a reference cross section perpendicular to the length direction of the hook structure 12 may be between 60 mm and 100 mm. 2 With 100mm 2 If the aforementioned area is too small, the capacity of the battery 14 may be insufficient and the earphone 10 may not be able to meet its battery life requirements. If the aforementioned area is too large, the battery housing 123 may be too visible from the front of the ear, thereby affecting the appearance quality of the earphone 10 when worn.

[0197] As an example, combining Figure 3 and Figure 1 , the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, the movement module 11 may be located on the front side of the ear in the wearing state, and the free end FE of the movement module 11 that is not connected to the hook-shaped structure 12 may extend into the concha cavity of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located on the back side of the ear in the wearing state. The movement module 11 may have a thickness direction X, a length direction Y, and a width direction Z that are orthogonal to each other, the thickness direction X being defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state, and the length of the movement module 11 in the length direction Y may be greater than the width of the movement module 11 in the width direction Z. Furthermore, the length of the movement module 11 in the length direction Y (for example Figure 3 The length L shown in FIG1 may be between 22 mm and 35 mm. If the length of the movement module 11 is too small, it may be difficult for the free end FE of the movement module 11 to extend into the concha cavity, and it may be difficult to further clamp the ear together with the hook-shaped structure 12. If the length of the movement module 11 is too large, it may also be difficult for the free end FE of the movement module 11 to extend into the concha cavity, and may even affect the wearing of the earphone 10. Furthermore, the hook-shaped structure 12 may have a transition portion 12a connected to the movement module 11. The transition portion 12a may be located on the front side of the ear in the wearing state, and the area of ​​the outer surface of the transition portion 12a on a reference cross section perpendicular to the length direction of the hook-shaped structure 12 may gradually decrease in the positive direction along the length direction of the hook-shaped structure 12 and away from the movement module 11, that is, the transition portion 12a may be configured as a tapered structure to make the overall appearance of the earphone 10 smoother and more symmetrical. Based on this, in the wearing state, and observed along the direction of the human coronal axis, compared with the free end FE of the movement module 11 not connected to the hook structure 12, the connection end CE of the movement module 11 connected to the hook structure 12 is closer to the top of the user's head, and the angle between the length direction Y and the direction of the human sagittal axis (for example Figure 3 The angle θ (shown in FIG) can be between 15° and 60°, so that the transition portion 12a passes over the recessed area 109 between the helix and the tragus of the ear as much as possible. This helps to reduce the risk of the transition portion 12a excessively interfering with the user's skin, thereby improving the wearing comfort of the earphone 10.

[0198] In some embodiments, for example Figure 7 , the hook structure 12 and the core module 11 can be plugged and fixed in a direction perpendicular to the width direction Z. Based on this, the length of the core module 11 in the length direction Y can be measured after the core module 11 and the hook structure 12 are disassembled.

[0199] In some embodiments, the width of the core module 11 in the width direction Z (eg Figure 3 If the width of the core module 11 is too small, the contact area between the core module 11 and the ear is too small, causing discomfort when wearing the earpiece. If the width of the core module 11 is too large, the core module 11 may block the external auditory canal too much.

[0200] As an example, combining Figure 23 The hook-shaped structure 12 is located on a reference plane perpendicular to the thickness direction X (e.g. Figure 23 There is a first reference line segment RL1 parallel to the width direction Z and with the longest length between the edge of the orthographic projection on the YZ plane (in the middle) facing the side of the movement module 11 and the orthographic projection of the movement module 11 on the same reference plane. Among them, the point P1 where the first reference line segment RL1 intersects with the orthographic projection of the movement module 11 is used as the starting point of the first reference line segment RL1, and the point P2 where the first reference line segment RL1 intersects with the orthographic projection of the hook-shaped structure 12 is used as the end point of the first reference line segment RL1. Furthermore, the orthographic projection of the transition portion 12a can have an inner edge IE and an outer edge OE, each of which is a continuous arc-shaped transition, and the outer edge OE is farther away from the first reference line segment RL1 than the inner edge IE in the length direction Y. Among them, the overall curvature of the inner edge IE can be greater than the overall curvature of the outer edge OE, so that the transition portion 12a is smoother and more symmetrical in overall appearance.

[0201] In some embodiments, the orthographic projection of the transition portion 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 that are parallel to the length direction Y and spaced in sequence. 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 located increasingly farther away from the orthographic projection of the movement module 11 in the width direction Z. Furthermore, the starting point and endpoint 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 fall on the inner edge IE and the outer edge OE, respectively. Among them, the length of the second reference line segment RL2 can be between 5mm and 8mm, and the extension line of the second reference line segment RL2 passes through 1 / 8 of the first reference line segment RL1; the length of the third reference line segment RL3 can be between 4mm and 6.3mm, and the extension line of the third reference line segment RL3 passes through 1 / 4 of the first reference line segment RL1; the length of the fourth reference line segment RL4 can be between 3.5mm and 5.4mm, and the extension line of the fourth reference line segment RL4 passes through 3 / 8 of the first reference line segment RL1; the length of the fifth reference line segment RL5 can be between 3mm and 5mm, and the extension line of the fifth reference line segment RL5 passes through 1 / 2 of the first reference line segment RL1.

[0202] 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 movement module 11 may not be able to extend into the concha cavity, and the sound outlet 111a on the movement module 11 may be too far away from the external auditory canal. If the length of the first reference line segment RL1 is too long, the free end FE may not be able to extend into the concha cavity, and the external auditory canal may be excessively blocked by the movement module 11. In other words, this configuration allows the free end FE of the movement module 11 to extend into the concha cavity, while ensuring that the sound outlet 111a on the movement module 11 is at an appropriate distance from the external auditory canal, so that the user can hear more of the sound waves generated by the movement module 11 without blocking the external auditory canal.

[0203] In some embodiments, the hook-shaped structure 12 may include a transition shell 122 connected to the movement module 11 and an elastic metal wire 121 connected to the transition shell 122. At least a portion of the transition shell 122 may be located on the front side of the ear in the worn state, and at least a portion of the elastic metal wire 121 may be located on the back side of the ear in the worn state. In other words, the portion of the transition shell 122 located on the front side of the ear in the worn state may serve as a portion of the transition portion 12a or the entire transition portion 12a. In particular, the movement module 11 may have an inner side surface IS facing the ear along the thickness direction X and an outer side surface OS away from the ear in the worn state. The area of ​​the outer surface of the transition shell 122 on a reference cross-section perpendicular to the length direction of the hook-shaped structure 12 may gradually decrease in the positive direction along the length direction of the hook-shaped structure 12 and away from the movement module 11, so as to allow the transition portion 12a to be set as a tapered structure. Furthermore, the adapter shell 122 can extend toward the side of the inner side surface IS away from the outer side surface OS in the thickness direction X, so as to allow a portion of the hook-shaped structure 12 to be staggered from the projection of the movement module 11 in the direction perpendicular to the thickness direction X, and thus in the worn state, the upper ear root of the ear can provide less support force to the earphone 10; the plane where the elastic metal wire 121 is located and the inner side surface IS can intersect in the non-worn state, so as to allow a portion of the hook-shaped structure 12 to overlap with the projection of the movement module 11 in the direction perpendicular to the thickness direction X, and thus in the worn state, the elastic metal wire 121 undergoes elastic deformation and clamps the ear and adheres to the ear together with the movement module 11.

[0204] As an example, combining Figure 7 and Figure 3The earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11. The movement module 11 may be located in front of the ear when worn, and the free end FE of the movement module 11 not connected to the hook-shaped structure 12 may extend into the concha cavity of the ear when worn. At least a portion of the hook-shaped structure 12 may be located in the back of the ear when worn. The movement module 11 may have a first inner side surface IS1 facing the ear along the thickness direction X when worn, and an outer side surface OS facing away from the ear. The thickness direction X is defined as the direction in which the movement module 11 approaches or moves away from the ear when worn. The hook-shaped structure 12 may have a transition portion 12a connected to the movement module 11. The transition portion 12a may be located in front of the ear when worn, and may have a second inner side surface IS2 facing the ear along the thickness direction X when worn. Furthermore, the first inner side surface IS1 can cover at least a portion of the tragus of the ear when worn, and the second inner side surface IS2 can be bent relative to the first inner side surface IS1 in the thickness direction X, away from the outer side surface OS. For example, the portion of the hook-shaped structure 12 located in front of the ear when worn is bent relative to the core module 11. With this arrangement, even if the earphone 10 has to pass over the tragus, a space is formed between the hook-shaped structure 12 and the core module 11 to accommodate the tragus. In other words, the earphone 10 can avoid the tragus, which helps reduce the risk of the earphone 10 pressing on the tragus and improves the comfort of the earphone 10 when worn.

[0205] In some embodiments, the angle between the second inner side surface IS2 and the first inner side surface IS1 can be between 119° and 170°. If the angle is too small, it may violate the original intention of the earphone 10 to avoid the tragus. If the angle is too large, it may reduce the fit of the earphone 10 against the user's skin when worn.

[0206] In some embodiments, the distance between the end of the second inner side surface IS2 away from the core module 11 and the first inner side surface IS1 in the thickness direction X can be between 1.6 mm and 2.4 mm. If this distance is too small, the original intention of the earphone 10 to avoid the tragus can be violated; if this distance is too large, the earphone 10 can easily lose its fit against the user's skin when worn.

[0207] As an example, the transition portion 12a may include an adapter shell 122 connected to the movement module 11, and at least a portion of the adapter shell 122 may be located on the front side of the ear in the worn state. In other words, the portion of the adapter shell 122 located on the front side of the ear in the worn state may serve as a portion of the transition portion 12a or the entire transition portion 12a. The adapter shell 122 may be configured as a tapered structure, for example, the area of ​​the outer surface of the adapter shell 122 on a reference cross section perpendicular to the length direction of the hook-shaped structure 12 may gradually decrease in the positive direction along the length direction of the hook-shaped structure 12 and away from the movement module 11. In this manner, the transition portion 12a may also be configured as a tapered structure to make the overall appearance of the earphone 10 smoother and more symmetrical.

[0208] Furthermore, the adapter shell 122 can extend toward the side of the first inner side surface IS1 away from the outer side surface OS in the thickness direction X, so as to allow the earphone 10 to avoid the tragus when worn, and allow a portion of the hook-shaped structure 12 to be staggered from the projection of the movement module 11 in a direction perpendicular to the thickness direction X, so that when worn, the upper ear root of the ear can provide less support force to the earphone 10.

[0209] In some embodiments, in the non-worn state, the elastic metal wire 121 can pass through the plane where the first inner side surface IS1 is located to allow a portion of the hook-shaped structure 12 to overlap with the projection of the movement module 11 in a direction perpendicular to the thickness direction X, and then in the worn state, the elastic metal wire 121 clamps the ear and adheres to the ear together with the movement module 11 due to elastic deformation.

[0210] In some embodiments, when not being worn, the plane of the elastic wire 121 and the first inner side surface IS1 may intersect, allowing a portion of the hook-shaped structure 12 to overlap with the projection of the movement module 11 in a direction perpendicular to the thickness direction X. Consequently, when being worn, the elastic wire 121 and the movement module 11, due to elastic deformation, clamp the ear and adhere to the ear. In the non-wearing state, the angle between the elastic wire 121 and the first inner side surface IS1 may be between 15° and 30°.

[0211] In some embodiments, the movement housing 111 may include a movement inner housing 1111 and a movement outer housing 1112 connected to the movement inner housing 1111, for example, the two are buckled in the thickness direction X. The movement inner housing 1111 may be closer to the ear than the movement outer housing 1112 when worn, and the sound outlet 111a may be provided on the movement inner housing 1111. Furthermore, at least one of the movement inner housing 1111 and the movement outer housing 1112 may be plugged and fixed to the adapter housing 122, for example Figure 7 The movement inner shell 1111 shown in FIG is plugged and fixed with the adapter shell 122 .

[0212] In some embodiments, the movement housing 111 may include a movement inner shell 1111 and a movement outer shell 1112 connected to the movement inner shell 1111, for example, the two are buckled in the thickness direction X. The movement inner shell 1111 may be closer to the ear than the movement outer shell 1112 when worn, and the sound outlet 111a may be provided on the movement inner shell 1111. Furthermore, one of the movement inner shell 1111 and the movement outer shell 1112 may be provided as an integrally molded structure with the adapter shell 122, and the other may be fixedly connected to the aforementioned integrally molded structure. Based on this, for the aforementioned integrally molded structure, the area corresponding to the speaker 112 may be simply regarded as the movement inner shell 1111, and the area provided in a tapered structure or the area corresponding to the electronic component 15 may be simply regarded as the adapter shell 122.

[0213] As an example, combining Figure 7 and Figure 3 The earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11. The movement module 11 may be located in front of the ear when worn, and at least part of the hook-shaped structure 12 may be located in the back of the ear when worn. The movement module 11 may include a movement housing 111 and a speaker 112 disposed in the movement housing 111. The hook-shaped structure 12 may include an adapter housing 122 connected to the movement housing 111. At least part of the adapter housing 122 may be located in front of the ear when worn. Figure 24 、 Figure 15 and Figure 16 , the adapter shell 122 can be formed with a accommodating cavity 124 and a through hole 1251 connected to the accommodating cavity 124, and the earphone 10 may include an electrode terminal 151 at least partially arranged in the through hole 1251. Since the accommodating cavity 124 is formed in the adapter shell 122, some components can be accommodated in the accommodating cavity 124, which is beneficial to saving space in the movement module 11 to allow the volume of the speaker 112 to be as large as possible. In addition, the electrode terminal 151 can be arranged on the adapter shell 122, which is beneficial to shortening the distance between the electrode terminal 151 and the speaker 112 in the length direction of the hook structure 12, so that the magnetic attraction between the magnetic circuit system of the speaker 112 (which includes a magnet) and the magnetic attraction structure in the charging box can be fully utilized, so that the electrode terminal 151 can more reliably contact the electrode terminal in the charging box.

[0214] In some embodiments, the electrode terminal 151 can be oriented toward the front of the ear when worn, so that the electrode terminal 151 can be closer to the speaker 112, which is beneficial for further shortening the distance between the electrode terminal 151 and the speaker 112 in the length direction of the hook-shaped structure 12.

[0215] In some embodiments, the electrode terminal 151 may include a charging positive terminal 1514 and a charging negative terminal 1515 that are spaced apart from each other. The charging positive terminal 1514 and the charging negative terminal 1515 may be respectively correspondingly arranged in their respective through holes 1251 to facilitate charging of the earphone 10 through the electrode terminal 151.

[0216] In some embodiments, the electrode terminal 151 may include a communication terminal 1516 spaced apart from the positive charging terminal 1514 and the negative charging terminal 1515. The communication terminal 1516 may be correspondingly arranged in the corresponding through hole 1251 to facilitate communication connection between the earphone 10 and a charging device such as a charging box.

[0217] As an example, combining Figure 24 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 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 that of the communication terminal 1516, and the communication terminal 1516 is generally more susceptible to damage from high voltage. To minimize or avoid the possibility of damage to the communication terminal 1516 due to conduction between the positive charging terminal 1514 and the communication terminal 1516 within a limited space, 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 probability of damage to the earphone 10 caused by 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 may be larger 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 larger than the distance between the positive charging terminal 1514 and the communication terminal 1516. This allows the electrode terminals 151 to be arranged as centrally as possible to reduce the space occupied by the electrode terminals 151, while also minimizing the risk of short circuits between the electrode terminals 151 and minimizing damage to the earphone 10.

[0218] In some embodiments, when viewed along the extension direction of the electrode terminal 151 , the connecting lines between the positive charging terminal 1514 , the negative charging terminal 1515 , and the communication terminal 1516 may form a scalene triangle.

[0219] In some embodiments, when viewed along the extension direction of the electrode terminal 151, the positive charging terminal 1514, the communication terminal 1516, and the negative charging terminal 1515 can be spaced apart from each other to form a line segment, for example, arranged in sequence to form a straight line segment. Wherein, when viewed along the extension direction of the electrode terminal 151, the magnet 127 and the movement module 11 can be located on both sides of the aforementioned straight line segment, respectively. In this arrangement, when the earphone 10 is placed in the charging box, the magnetic circuit system of the speaker 112 forms a first magnetic pair with the permanent magnet or soft magnet in the charging box, and the magnet 127 forms a second magnetic pair with another permanent magnet or soft magnet in the charging box. Therefore, the electrode terminal 151 is located between the first magnetic pair and the second magnetic pair and can more reliably contact the electrode terminal in the charging box. Furthermore, the area of ​​the outer surface of the adapter housing 122 on a reference cross-section perpendicular to the length of the hook-shaped structure 12 can gradually decrease in the positive direction along the length of the hook-shaped structure 12 and away from the movement module 11. That is, the adapter housing 122 can be configured as a tapered structure to allow the transition portion 12a of the hook-shaped structure 12 to be configured as a tapered structure, making the overall appearance of the earphone 10 smoother and more symmetrical. Specifically, the center of the magnet 127 has a first distance, a second distance, and a third distance from the center of the positive charging terminal 1514, the communication terminal 1516, and the negative charging terminal 1515, respectively. The third distance can be greater than the first distance and the second distance, respectively. This helps reduce the risk of the adapter housing 122 having too little wall thickness due to the magnet 127 being too close to the negative charging terminal 1515, thereby increasing the structural strength of the adapter housing 122.

[0220] As an example, combining Figure 7 and Figure 24 , the movement shell 111 may have a first inner side surface IS1 facing the ear along the thickness direction X and an outer side surface OS away from the ear in the wearing state, the thickness direction X is defined as the direction in which the movement module 11 is close to or away from the ear in the wearing state, and the adapter shell 122 may have a second inner side surface facing the ear along the thickness direction X in the wearing state (for example, the second inner side surface IS2 of the transition portion 12a). The second inner side surface IS2 may be bent in the thickness direction X relative to the first inner side surface IS1 in the direction away from the outer side surface OS, for example, the adapter shell 122 is bent relative to the movement module 11. Furthermore, the electrode terminal 151 is exposed on the second inner side surface IS2 to facilitate contact with the electrode terminal in the charging box, and the extension direction of the electrode terminal 151 may be consistent with the winding direction of the coil of the speaker 112 (that is, the voice coil mentioned above) (for example Figure 25 This arrangement allows the suction direction of the first magnetic pair to intersect with the suction direction of the second magnetic pair, which helps reduce the risk of the earphone 10 shaking in the charging box and allows the electrode terminal 151 to more reliably contact the electrode terminal in the charging box.

[0221] Furthermore, the movement module 11 may include a main control circuit board 13 disposed in the movement housing 111 and coupled to the speaker 112. The main control circuit board 13 and the speaker 112 are stacked in the thickness direction X and are located on the side of the speaker 112 facing the outer side surface OS. Such an arrangement is beneficial to increasing the area of ​​the speaker 112 when the size of the movement housing 111 on the reference section perpendicular to the thickness direction X is limited, and to making the speaker 112 closer to the permanent magnet or soft magnet in the charging box, thereby increasing the suction force of the first magnetic pair, so that the electrode terminal 151 can more reliably contact the electrode terminal in the charging box.

[0222] Based on the above description, the earphone 10 may include a positive charging terminal 1514, a negative charging terminal 1515, and a communication terminal 1516 that are spaced apart from each other. The positive charging terminal 1514, the negative charging terminal 1515, and the communication terminal 1516 may be located on the same side of the ear when worn, for example, all three are located on the front side of the ear. The spacing between the positive charging terminal 1514 and the negative charging terminal 1515 may be greater than the spacing between the positive charging terminal 1514 and the communication terminal 1516, and the spacing between the positive charging terminal 1514 and the communication terminal 1516 may be greater than the spacing 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, and the communication terminal 1516 is generally more susceptible to damage from high voltage. To minimize or avoid the possibility of damage to the communication terminal 1516 due to conduction between the positive charging terminal 1514 and the communication terminal 1516 within a limited space, the distance between the positive charging terminal 1514 and the communication terminal 1516 is larger than the distance between the communication terminal 1516 and the negative charging terminal 1515. Furthermore, to minimize the possibility 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 may also be larger 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, so that the electrode terminals 151 are arranged as concentrated as possible to reduce the space occupied by the electrode terminals 151, while minimizing the risk of short circuit between the electrode terminals 151 and minimizing the damage to the earphones 10.

[0223] In some embodiments, at least one of the positive charging terminal 1514 , the negative charging terminal 1515 and the communication terminal 1516 is disposed at the adapter housing 122 , for example, all three are disposed at the adapter housing 122 , and for another example, all three are disposed at the battery housing 123 .

[0224] In some embodiments, at least one of the positive charging terminal 1514 , the negative charging terminal 1515 and the communication terminal 1516 is disposed at the core housing 111 , for example, any one is disposed at the core housing 111 and the remaining two are disposed at the adapter housing 122 .

[0225] As an example, combining Figure 25 and Figure 7 , the movement module 11 includes a movement housing 111, and a speaker 112 and a main control circuit board 13 arranged in the movement housing 111, and the speaker 112 is electrically connected to the main control circuit board 13. The main control circuit board 13 is used to process signals and transmit the processed electrical signals to the speaker 112, and the speaker 112 is used to convert the received electrical signals into mechanical vibrations. Among them, the speaker 112 may include a first coil 1125 (that is, the voice coil mentioned above) coupled to the main control circuit board 13, and the first coil 1125 can be extended into the magnetic circuit system of the speaker 112, and a second coil 134 can be provided on the main control circuit board 13. Furthermore, the winding axis of the second coil 134 (for example Figure 25 ) and the winding axis of the first coil 1125 (eg Figure 25 (as shown in C1 in the figure) can be cross-set. Such a setting is conducive to weakening the mutual inductive coupling between the second coil 134 and the first coil 1125, thereby reducing the mutual influence between the two coils, for example, reducing the risk of the current change of the second coil 134 causing the speaker 112 to produce noises such as "rustling" and "squeaking" through mutual inductance. In addition, since the mutual inductive coupling between the first coil 1125 and the second coil 134 is reduced, the main control circuit board 13 can be allowed to be closer to the speaker 112, which is conducive to making the movement module 11 more compact in structure.

[0226] In some embodiments, the main control circuit board 13 and the speaker 112 can be stacked along the winding axis of the first coil 1125. This arrangement facilitates the installation of a larger speaker 112 within the movement housing 111 when the volume of the movement housing 111 is constant, thereby increasing the sensitivity and maximum volume of the earphone 10. The winding axis of the second coil 134 and the winding axis of the first coil 1125 can be arranged orthogonally. For example, the winding axis of the second coil 134 and the winding axis of the first coil 1125 are parallel to the length direction Y and the thickness direction X, respectively, to further weaken the mutual inductive coupling between the second coil 134 and the first coil 1125. Furthermore, due to the weakened mutual inductive coupling between the second coil 134 and the first coil 1125, the distance between the main control circuit board 13 and the speaker 112 along the winding axis of the first coil 1125 can be further reduced, thereby facilitating a more compact arrangement of the movement module 11 in the thickness direction X and reducing the volume of the movement module 11. In some embodiments, the distance between the main control circuit board 13 and the speaker 112 in the winding axis direction of the first coil 1125 can be less than or equal to 3 mm. The second coil 134 can be arranged on the side of the main circuit board 13 away from the speaker 112 or on the other side facing the speaker 112. For example: the second coil 134 is arranged on the side of the main circuit board 13 away from the speaker 112, and the distance between the main circuit board 13 and the speaker 112 in the winding axis direction of the first coil 1125 is less than or equal to 1 mm. For another example: the second coil 134 is arranged on the other side of the main circuit board 13 facing the speaker 112, and the distance between the main circuit board 13 and the speaker 112 in the winding axis direction of the first coil 1125 is less than or equal to 2 mm.

[0227] In the present application, the movement module 11 may include components such as an inductor or a transceiver coil, and the inductor or transceiver coil component may include a second coil 134. In some embodiments, the movement module 11 may include a switching power supply, which may be used to achieve voltage conversion. The switching power supply may be provided on the main control circuit board 13 and electrically connected to the main control circuit board 13; the inductor of the switching power supply may be the second coil 134, which is used to achieve energy storage, filtering, etc. In some embodiments, the movement module 11 may include a communication device, which may be used to enable the headset 10 to be used in conjunction with terminal devices such as mobile phones and computers. The communication device is provided on the main control circuit board 13 and electrically connected to the main circuit board 13; the communication device may include a transceiver coil to achieve signal transmission and reception, and the transceiver coil of the communication device may be the second coil 134.

[0228] As an example, combining Figure 26 and Figure 7The main control circuit board 13 may include a substrate 135, a metal trace 136 formed on the substrate 135, and a load 137 disposed on the substrate 135. The substrate 135 may be electrically insulating. The metal trace 136 may be printed on the substrate 135 using techniques such as copper etching. The load 137 may be soldered to the substrate 135 using techniques such as surface mounting and connected to the metal trace 136. The main control circuit board 13 may be a single-sided board, a double-sided board, or a multi-layer board as needed. The metal trace 136 may include a power trace 1361 and a loop trace 1362 for connecting the load 137 to an external power source (e.g., a battery 14). The power trace 1361 and the loop trace 1362 are disposed side by side. The current direction of the power trace 1361 is opposite to the current direction of the loop trace 1362, so as to allow a circuit loop to be formed between the load 137 and the external power source. Furthermore, the ratio of the absolute value of the difference between the width of either power trace 1361 or loop trace 1362 and its average width to the average width can be less than or equal to 20%. Preferably, this ratio can be less than or equal to 15%, and more preferably, less than or equal to 10%. The average width is defined as the average of the widths of power trace 1361 and loop trace 1362. In short, this ratio can be used to measure the degree to which the width of either power trace 1361 or loop trace 1362 deviates from the average of their respective widths. Therefore, the smaller the ratio, the closer the width of power trace 1361 and loop trace 1362 are to each other. With such a configuration, since the current direction of the power trace 1361 is opposite to the current direction of the loop trace 1362, the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 can cancel each other out when their vectors are superimposed in three-dimensional space. Since the difference between the width of the power trace 1361 and the width of the loop trace 1362 is small, the total magnetic field intensity of the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 after their vector superposition in three-dimensional space is small, which is beneficial for reducing the electromagnetic interference of the metal trace 136 on the main control circuit board 13 to other electronic components, for example, reducing the risk of the speaker 112 producing noises such as "rustling" and "squeaking" due to the magnetic field generated by the metal trace 136 on the main control circuit board 13.

[0229] In some embodiments, the extension direction of the power trace 1361 and the extension direction of the loop trace 1362 can be arranged in parallel, which is conducive to the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 offsetting each other. Specifically, the thickness of the power trace 1361 and the thickness of the loop trace 1362 can be equal, which is conducive to simplifying the molding process of the metal trace 136. The width of the power trace 1361 and the width of the loop trace 1362 can be equal, which is conducive to the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 offsetting each other. Furthermore, the length of the power trace 1361 and the length of the loop trace 1362 can be equal, which is conducive to the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 offsetting each other. It is worth noting that the thickness of the loop trace 1362 can refer to its dimension in the thickness direction of the main control circuit board 13 (for example, parallel to the thickness direction X).

[0230] In some embodiments, the power trace 1361 and the loop trace 1362 may be disposed on the same layer on the substrate 135 .

[0231] In some embodiments, the power trace 1361 and the loop trace 1362 may be arranged on different layers on the substrate 135 , and their orthographic projections in the thickness direction of the main control circuit board 13 may at least partially overlap.

[0232] In some implementations, the load 137 may be a component such as a main control chip or a communication chip.

[0233] In some embodiments, the main control circuit board 13 may include a connector 138, which can be mounted on the substrate 135 using surface mount technology or other techniques. The power supply trace 1361 and the return trace 1362 each connect at one end to the connector 138 and at the other end to the load 137, facilitating connection of the load 137 to an external power source. For example, a battery 14, serving as an external power source, is connected to one end of the flexible circuit board 16 via a wire 129. The other end of the flexible circuit board 16 engages with the connector 138, thereby connecting the battery 14 to the main control circuit board 13.

[0234] The specific embodiments described in this application are merely exemplary, and one or more technical features in the specific embodiments are optional or additional, and do not constitute necessary technical features of the inventive concept of this application. In other words, the scope of protection of this application covers and is far greater than the specific embodiments. Moreover, the specific embodiments described in this application are merely exemplary, and do not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are similarly included in the scope of patent protection of this application.

Claims

1. A headset, characterized in that: The earphones include a movement module and a hook-shaped structure connected to the movement module, and a main control circuit board. The movement module is located in front of the ear when worn, and the free end of the movement module not connected to the hook-shaped structure extends into the concha cavity of the ear when worn. At least part of the hook-shaped structure is located behind the ear when worn. The orthographic projections of the hook-shaped structure and the movement module on a first reference plane perpendicular to the thickness direction do not overlap. The thickness direction is defined as the direction in which the movement module approaches or moves away from the ear when worn. The orthographic projection of the hook structure and the movement module are aligned with each other. There is a first reference line segment with the shortest length between the orthographic projections. After the movement module is fixed, the hook structure has a tensile force between 0.6N and 8N after being pulled 5mm to 10mm relative to the movement module in a direction parallel to the first reference line segment and away from the movement module at the measurement fixed position; wherein, the measurement fixed position is defined as being 16mm to 27mm away from the free end of the hook structure that is not connected to the movement module in the length direction of the hook structure, the movement module includes a movement shell connected to the hook structure, and the main control circuit board is arranged in the movement shell.

2. The earphone according to claim 1, wherein After the movement module is fixed, the hook structure has a pulling force between 0.8N and 5N after being pulled 5mm to 10mm relative to the movement module in a direction parallel to the first reference line segment and away from the movement module at the measurement fixed position.

3. The earphone according to claim 1, wherein The length of the first reference line segment is between 2 mm and 3 mm.

4. The earphone according to claim 1, wherein After the movement module is fixed, the hook structure has a pulling force between 0.1N and 1.96N after being pulled away from the movement module by a distance of 1mm to 5mm in a direction parallel to the first reference line segment and away from the movement module at the measurement fixed position.

5. The earphone according to claim 1, wherein The distance between the measurement fixed position and the first reference line segment is less than or equal to 1 mm.

6. The earphone according to claim 1, wherein The movement module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other. The length of the movement module in the length direction is greater than the width of the movement module in the width direction. The orthographic projection of the free end of the movement module on a second reference plane perpendicular to the length direction has a geometric center, and the distance between the measurement fixed position and the extension line passing through the geometric center and parallel to the first reference line segment is less than or equal to 1 mm.

7. The earphone according to claim 1, wherein The movement module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other. The length of the movement module in the length direction is greater than the width of the movement module in the width direction. There is a second reference line segment parallel to the width direction and the longest length between the orthographic projection of the hook structure and the orthographic projection of the movement module. The length of the second reference line segment is between 13 mm and 20 mm.

8. The earphone according to claim 7, wherein: The point where the second reference line segment intersects the orthographic projection of the movement module is used as the starting point of the second reference line segment, and the point where the second reference line segment intersects the orthographic projection of the hook-shaped structure is used as the end point of the second reference line segment. A third reference line segment passing through 1 / 4 of the second reference line segment and parallel to the length direction intersects with the hook-shaped structure at a first intersection and a second intersection. The first intersection is closer to the movement module than the second intersection in the length direction of the hook-shaped structure. The distance between the first intersection and the starting point of the second reference line segment is between 9 mm and 15 mm, and the distance between the second intersection and the starting point of the second reference line segment is between 12 mm and 19 mm.

9. The earphone according to claim 1, wherein The hook-shaped structure includes an elastic metal wire connected to the movement module and a battery shell connected to one end of the elastic metal wire away from the movement module. A battery coupled to the movement module is arranged in the battery shell, and the extension line of the first reference line segment passes through the battery shell.

10. The earphone according to claim 9, characterized in that The battery housing includes a cover shell connected to the elastic metal wire and a battery compartment connected to the cover shell. The battery compartment and the cover shell cooperate to form a cavity structure for accommodating the battery. The hook-shaped structure includes a flexible covering that at least covers the elastic metal wire and the cover shell. The extension line of the first reference line segment passes through the section where the flexible covering overlaps with the cover shell.

11. The earphone according to claim 10, characterized in that The battery compartment is open at one end in the length direction of the hook-shaped structure, the cover shell is partially embedded in the open end of the battery compartment, the flexible covering does not cover the battery compartment, and the outer surface of the flexible covering smoothly transitions to the outer surface of the battery compartment.

12. The earphone according to claim 11, wherein The measurement fixing position is located at the junction between the flexible covering and the battery compartment.

13. The earphone according to claim 9, wherein The diameter of the elastic metal wire is between 0.6 mm and 0.8 mm.

14. The earphone according to claim 1, wherein The movement module includes a speaker arranged in the movement housing. The movement housing is provided with a sound outlet on the side facing the ear when worn. The sound waves generated by the speaker are transmitted through the sound outlet. The movement module cooperates with the cavum concha when worn to form an auxiliary cavity connected to the external auditory canal of the ear. The sound outlet is at least partially located in the auxiliary cavity.

15. The earphone according to claim 14, characterized in that The auxiliary cavity is semi-open.

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