Charging box of earphone

Abstract

The invention mainly relates to a charging box of an earphone, the earphone comprises a movement module and a hook-shaped structure connected with the movement module, the hook-shaped structure comprises a battery shell and an elastic part connected with the battery shell and the movement module, and the charging box comprises a lower shell assembly; the lower shell assembly is provided with a profiling groove used for accommodating an earphone. The profiling groove comprises a first profiling groove area corresponding to the movement module and a second profiling groove area corresponding to the hook-shaped structure. The second profiling groove area further comprises a first part corresponding to the battery shell and a second part corresponding to the elastic part, the lower shell assembly is provided with a limiting structure, the machine core module is kept in the first profiling groove area through the limiting structure, and the depth of the first part of the second profiling groove area is larger than that of the first profiling groove. Through the above mode, the charging box provided by the invention can enable the earphone to be placed more stably, and improves the operability when a user stores the earphone.

Description

Technical Field

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

[0002] With the continuous popularization of electronic devices, electronic devices have become an indispensable social and entertainment tool in people's daily lives, and people's requirements for electronic devices are getting higher and higher. Electronic devices such as headphones 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. Among them, according to the working principle of headphones, they can generally be divided into air conduction headphones and bone conduction headphones; according to the way users wear headphones, they can generally be divided into headphones, ear-hook headphones and in-ear headphones; according to the way headphones interact with electronic devices, they can generally be divided into wired headphones and wireless headphones. Furthermore, the headphones can be placed in a corresponding charging box in scenarios such as low power or not in use, so as to facilitate charging and storage. In the related art, the charging box of the headphones has the technical problem of being large in size and inconvenient to carry. Summary of the invention

[0003] The present application provides a charging box for earphones, the earphones comprising a movement module and a hook-shaped structure connected to the movement module, the hook-shaped portion comprising a battery housing and an elastic portion connecting the battery housing and the movement module, the charging box comprising a lower shell assembly; the lower shell assembly is provided with a contoured groove for accommodating the earphones, the contoured groove comprising a first contoured groove area corresponding to the movement module and a second contoured groove area corresponding to the hook-shaped structure; the second contoured groove area also comprises a first part corresponding to the battery housing and a second part corresponding to the elastic portion, the lower shell assembly is provided with a limiting structure, the movement module is retained in the first contoured groove area by the limiting structure, the depth of the first part of the second contoured groove area is greater than the depth of the first contoured groove.

[0004] In some embodiments, the limiting structure includes a first magnetic structure, which is disposed on the lower shell assembly and under the first contoured groove area. The first magnetic structure is used to form a magnetic pairing with a magnetic component on the movement module.

[0005] In some embodiments, the magnetic attraction component is a magnetic circuit system of a speaker of the movement module.

[0006] In some embodiments, the hook structure also includes a hard part connecting the movement module and the elastic part, the inner side surface of the movement module and the inner side surface of the hard part are inclined to each other, and the depth of the first contoured groove area gradually increases in the direction away from the area of ​​the second contoured groove area accommodating the hard part.

[0007] In some embodiments, the charging box further includes an upper shell assembly, and the upper shell assembly and the lower shell assembly are rotated to open or close the charging box; the upper shell assembly is provided with a limiting member, and the limiting member abuts against the battery housing when the charging box is closed.

[0008] In some embodiments, the upper shell assembly is provided with a receiving groove for accommodating the earphone when the charging box is closed, and the limiting member is protruded from the bottom wall of the receiving groove.

[0009] In some embodiments, the limiting member includes an abutment portion and a telescopic portion, the telescopic portion connecting the abutment portion and the upper shell assembly, the abutment portion being used to abut against the battery housing, and the telescopic portion being used to provide elastic force when the abutment portion abuts against the battery housing.

[0010] In some embodiments, the lower shell assembly includes two contoured grooves, which respectively accommodate two earphones worn on the left and right ears of the user, and the second contoured groove areas of the two contoured grooves are arranged to intersect with each other so that when the two contoured grooves respectively accommodate earphones, the elastic portions of the two earphones overlap with each other and form two overlapping points.

[0011] In some embodiments, the charging box also includes an upper shell assembly, and the upper shell assembly and the lower shell assembly are opened or closed by rotating around a rotation axis; when observed along the thickness direction of the charging box, the projection of the overlapping point of the two overlapping points on the side away from the rotation axis along the second reference direction overlaps with the area of ​​the free end of the movement module accommodating the first contoured groove area, and the first reference direction is perpendicular to the rotation axis of relative rotation between the upper shell assembly and the lower shell assembly; the projection of the overlapping point of the two overlapping points on the side close to the rotation axis along the second reference direction overlaps with the hard part, wherein the second reference direction is perpendicular to the first reference direction.

[0012] In some embodiments, the areas where two second contoured groove regions are surrounded by the hook-shaped structure and located between the two overlapping points are merged into one, or the areas where two second contoured groove regions are surrounded by the hook-shaped structure and located between the two overlapping points form an isolated island.

[0013] In some embodiments, the movable gap between the battery housing and the side wall of the second contoured groove area is greater than the movable gap between the movement module and the side wall of the first contoured groove area.

[0014] The beneficial effect of the present application is that the core module and the hook structure can be accommodated by providing the first profiling groove area and the second profiling groove area. The depth of the first part of the second profiling groove area is set to be greater than the depth of the first profiling groove. When the earphone is placed, the part of the earphone core module can have a higher height relative to the hook structure, which is convenient for the user to grab the core module to take the earphone, and improves the user's sense of operability when storing the earphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 paying any creative work.

[0016] Figure 1 is a schematic diagram of the front profile of the ear of the user described in the present application;

[0017] Figure 2 is a structural schematic diagram of an embodiment of a headset provided by the present application;

[0018] Figure 3 is a schematic diagram of an embodiment of the earphone provided by the present application in a wearing state;

[0019] Figure 4 is a structural schematic diagram of an embodiment of a headset provided by the present application;

[0020] Figure 5 is a structural schematic diagram of an embodiment of a headset provided by the present application;

[0021] Figure 6 It is a comparison diagram 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 the present application;

[0022] Figure 7 yes Figure 2 A schematic cross-sectional structure diagram of a middle earphone embodiment along the A1-A1 section direction;

[0023] Figure 8 yes Figure 2 A schematic cross-sectional structure diagram of a middle earphone embodiment along the A2-A2 section direction;

[0024] Fig. 9 is a structural schematic diagram of an embodiment of a headset provided by the present application;

[0025] Fig.10 It is a structural schematic diagram of an embodiment of a movement housing provided by the present application;

[0026] Fig.11 It is a structural schematic diagram of an embodiment of a movement housing provided by the present application;

[0027] Fig.12 It is a structural schematic diagram of an embodiment of a bracket provided by the present application;

[0028] Fig.13 yes Figure 8 A schematic diagram of the enlarged structure of the middle earphone in the B1 area of ​​an embodiment;

[0029] Fig.14 yes Figure 8 A schematic diagram of the enlarged structure of the middle earphone in the B2 area of ​​an embodiment;

[0030] Fig.15 It is a structural schematic diagram of an embodiment of a hook-shaped structure provided by the present application;

[0031] Fig.16 yes Fig.15 A schematic diagram of the cross-sectional structure of an embodiment of the middle hook-shaped structure along the A3-A3 cutting direction;

[0032] Fig.17 yes Fig.15 A schematic diagram of the cross-sectional structure of an embodiment of the middle hook-shaped structure along another cutting direction perpendicular to the A3-A3 cutting direction;

[0033] Fig.18 yes Fig.15 A schematic diagram of the exploded structure of an embodiment of a middle hook-shaped structure;

[0034] Fig.19 It is a structural schematic diagram of an embodiment of a charging box provided by the present application;

[0035] Fig. 20 yes Fig.19 A schematic diagram of the structure of an embodiment of a charging box with earphones placed in it;

[0036] Fig.21 It is a structural schematic diagram of an embodiment of a charging box provided by the present application;

[0037] Fig. 22 yes Fig.21 A schematic diagram of the cross-sectional structure of an embodiment of a middle charging box after the cover is closed along the A4-A4 section direction;

[0038] Fig.23 yes Fig. 22 A schematic diagram of the structure of an embodiment of a charging box;

[0039] Fig.24 yes Fig.19 A schematic diagram of the cross-sectional structure of an embodiment of a middle charging box along the A5-A5 section direction;

[0040] Fig.25 It is a structural schematic diagram of the upper shell assembly of the charging box provided by the present application being provided with a limiting member;

[0041] Fig.26 yes Fig.25 A schematic structural diagram showing another perspective of the upper shell assembly being provided with a limiting member;

[0042] Fig. 27 It is a schematic cross-sectional structure diagram of an embodiment of a charging box of the present application in an open state;

[0043] Fig.28 It is a schematic diagram of the structural decomposition of an embodiment of a limiting mechanism in a charging box of the present application;

[0044] Fig.29 yes Fig.28 A schematic diagram of the unexploded partial structure of an embodiment of the middle limit mechanism;

[0045] Fig.30 It is a schematic diagram of the structural decomposition of another embodiment of the limiting mechanism in the charging box of the present application;

[0046] Fig.31 yes Fig.30 A schematic diagram of the unexploded partial structure of an embodiment of the middle limit mechanism;

[0047] Fig.32 yes Fig.31 Schematic diagram of the cross-sectional structure of the middle limit structure along the A6-A6 cutting direction;

[0048] Fig.33 is a schematic cross-sectional structure diagram of the charging box embodiment of the present application in a closed state;

[0049] Fig.34 This is a schematic diagram of the magnetic field simulation results at the Hall sensor of the charging box embodiment of the present application. DETAILED DESCRIPTION

[0050] The present application is 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, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0051] Reference to "embodiment" in this application means that a specific feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0052] Combination Figure 1 The user's ear 100 may include an external auditory canal 101, a cavum conchae 102, a cymba conchae 103, a triangular fossa 104, an antihelix 105, a scaphoid 106, an auricle 107, and an antitragus 108. 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 1In the present application, unless otherwise specified, the external auditory canal 101 specifically refers to its entrance away from the tympanic membrane (i.e., the ear hole). Furthermore, the concha cavity 102, the hymena conchae 103, the triangular fossa 104 and other physiological parts have a certain volume and depth; and the concha cavity 102 is directly connected to the external auditory canal 101, which can be simply regarded as the aforementioned ear hole being located at the bottom of the concha cavity 102.

[0053] Furthermore, different users may have individual differences, resulting in different shapes, sizes and other dimensional differences in the ears. For the convenience 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. Therefore, in this application, descriptions such as "the user wears the earphones", "the earphones are in a wearing state" and "in a wearing state" may refer to the earphones of this application being worn on the ears of the aforementioned simulator. Of course, precisely because different users have individual differences, there may be certain differences between the earphones worn by different users and the earphones worn on the ears of the aforementioned simulator, but such differences should be tolerated.

[0054] It should be noted that in the fields of medicine and anatomy, three basic planes of the human body can be defined: 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. Among them, the sagittal plane refers to a plane perpendicular to the ground along the front-back direction of the body, which divides the human body into left and right parts; the coronal plane refers to a plane perpendicular to the ground along the left-right direction of the body, which divides the human body into front and back parts; the horizontal plane refers to a plane parallel to the ground along the up-down direction of the body, which divides the human body into upper and lower parts. Correspondingly, the sagittal axis refers to an axis along the front-back direction of the body and perpendicular to the coronal plane, the coronal axis refers to an axis along the left-right direction of the body and perpendicular to the sagittal plane, and the vertical axis refers to an axis along the up-down direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear" 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, by observing the ear of the above simulator along the direction of the human coronal axis, it can be obtained Figure 1 Schematic diagram of the front profile of the ear shown.

[0055] As an example, in combination Figures 2 to 5The earphone 10 may include a movement module 11 and a hook structure 12 connected to the movement module 11, the movement module 11 is located on the front side of the ear in the worn state, and at least part of the hook structure 12 is located on the back side of the ear in the worn state, so that the earphone 10 is hung on the ear in the worn state. The movement module 11 may have a connecting end CE connected to the hook structure 12 and a free end FE not connected to the hook structure 12. Further, the movement module 11 may be configured not to block the external auditory canal in the worn state, 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.

[0056] In order to improve the stability of the earphone 10 when being worn, the earphone 10 may adopt any one of the following methods or a combination thereof. First, at least a portion of the hook-shaped structure 12 is configured as a contoured structure that fits at least one of the back side of the ear and the head, so as to increase the contact area between the hook-shaped structure 12 and the ear and / or the head, thereby increasing the resistance of the earphone 10 to falling off from the ear. Second, at least a portion of the hook-shaped structure 12 is configured as an elastic structure so that it has a certain amount of deformation when being worn, so as to increase the positive pressure of the hook-shaped structure 12 on the ear and / or the head, thereby increasing the resistance of the earphone 10 to falling off from the ear. Third, at least a portion of the hook-shaped structure 12 is configured to abut against the head when being 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 from the ear. Fourthly, the movement module 11 and the hook structure 12 are configured to clamp the physiological parts such as the area where the antihelix is ​​located and the area where the cavum concha is located from the front and back sides of the ear when worn, thereby increasing the resistance of the earphone 10 to fall off the ear. Fifthly, the movement module 11 or the auxiliary structure connected thereto is configured to at least partially extend into the cavum concha, cymba concha, triangular fossa and scaphoid, thereby increasing the resistance of the earphone 10 to fall off the ear.

[0057] As an example, in combination Figure 3 In the wearing state, the free end FE of the movement module 11 can extend into the concha cavity. The movement module 11 and the hook structure 12 can be configured to clamp the ear region corresponding to the concha cavity from the front and back sides of the ear region, thereby increasing the resistance of the earphone 10 to fall off the ear, thereby improving the stability of the earphone 10 in the wearing state. For example, the free end FE is pressed in the concha cavity in the thickness direction X; for another example, the free end FE abuts against the concha cavity in the length direction Y and the width direction Z.

[0058] It should be noted that: in the wearing state, the free end FE of the movement module 11 can not only extend into the concha cavity, but also be projected onto the antihelix, or onto the left and right sides of the head and located in front of the ear on the sagittal axis of the human body. In other words, the hook-shaped structure 12 can support the movement module 11 to be worn in the concha cavity, the antihelix, the front of the ear, and other wearing positions.

[0059] As an example, in combination 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 rear 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 clamp the ear together 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.

[0060] It should be noted that: in the wearing state, and observed along the direction of the coronal axis, the movement module 11 can be set to a circular, elliptical, rounded square, rounded rectangle, etc. shape. Among them, when the movement module 11 is set to a circular, elliptical, etc. shape, the above-mentioned connection surface can refer to the arc side of the movement module 11; and when the movement module 11 is set to a rounded square, rounded rectangle, etc. shape, the above-mentioned connection surface can include the lower side LS, upper side US and rear side RS mentioned later. Further, 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. Among them, 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 in the wearing state, 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 in the wearing state. Therefore, for the convenience of description, this embodiment takes the movement module 11 as a rounded rectangle as an example for exemplary description. 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.

[0061] As an example, in combination 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 hole 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 the sound outlet hole 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.

[0062] As an example, in combination Figure 4 The hook-shaped structure 12 is on a reference plane perpendicular to the length direction Y (eg 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 clamp the ear from the front and back sides of the ear together, 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.

[0063] Furthermore, combined with Figure 2 , Figure 4 , Figure 5 and Fig. 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, and a battery 14 coupled to the movement module 11 is arranged in the battery housing 123, and 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 is 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 in the wearing state. Among them, 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.

[0064] As an example, in combination 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, and the rear side surface RS is located at one 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. Among them, 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 (in the middle) toward the movement module 11 can be divided into a first section S1 and a second section S2 with a continuous arc transition, and the dividing point DP between the first section S1 and the second section S2 is the position where the aforementioned edge is farthest from the upper side US along the width direction Z. Furthermore, the overall bending degree of the hook-shaped structure 12 in the first section S1 is greater than the overall bending degree of the hook-shaped structure 12 in the second section S2. In this way, the free end FE is allowed to extend into the concha cavity, and the hook-shaped structure 12 can cooperate with the movement module 11 to provide a suitable clamping force.

[0065] It should be noted that the above overall curvature can be used to qualitatively describe the curvature of different sections of the hook-shaped structure 12, wherein the curvature radius of each section can be a constant value or continuously variable. Therefore, there is at least one point in the first section S1 whose curvature radius is smaller than the curvature radius of any point in the second section S2. Furthermore, the above overall curvature can also be quantitatively characterized by an average curvature radius, that is, first find the curvature radius of N points on each section and then take the average value.

[0066] 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 contact area between the hook structure 12 and the user's skin, which is conducive to improving the stability of the earphone 10 when worn.

[0067] 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 with the upper side US, and the end point of the first reference line segment RL1 is the dividing point DP. The second reference line segment RL2, the third reference line segment RL3, and the fourth reference line segment RL4 mentioned later are successively farther and farther away from the starting point of the first reference line segment RL1 in the width direction Z. Further, 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 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 length of the first reference line segment RL1 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 configuration allows the free end FE to extend into the concha cavity, while ensuring that the sound outlet hole 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.

[0068] 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 11mm and 18mm, and the distance between the fourth intersection P4 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm; the fourth reference line segment RL4 passing through 3 / 4 of the first reference line segment RL1 and parallel to the length direction Y intersects with the first segment S1 and the second segment S2 at the fifth intersection P5 and the sixth intersection P6 respectively, the distance between the fifth intersection P5 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm, and the distance between the sixth intersection P6 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm. In this way, when the free end FE extends into the concha cavity and the sound outlet 111a on the movement module 11 has a suitable distance from the external auditory canal, the hook structure 12 can better fit the ear.

[0069] In some embodiments, there is a fifth reference line segment RL5 with the shortest spacing along the length direction Y between the second segment S2 and the rear side surface RS, and 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, it is easy to cause the clamping force of the movement module 11 and the hook structure 12 on the ear to be too large, causing discomfort when wearing; if the length of the fifth reference line segment RL5 is too long, it is easy to cause the clamping force of the movement module 11 and the hook structure 12 on the ear to be too small, causing unstable wearing. In other words, such a setting is to take into account the stability and comfort of the earphone 10 when worn.

[0070] Further, the fifth reference line segment RL5 is defined as follows: the point where the fifth reference line segment RL5 intersects with the rear side surface RS is used as the starting point of the fifth reference line segment RL5, and the point where the fifth reference line segment RL5 intersects with the second segment S2 is used as the end point 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 with the second segment S2 at the seventh intersection point P7, the orthographic projection of the intersection of the extension line of the first reference line segment RL1 and the lower side surface LS along the length direction Y intersects with the second segment S2 at the 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 5mm and 9mm, and the distance between the eighth intersection point P8 and the starting point of the fifth reference line segment RL5 can be between 5mm and 9mm. In this way, the hook structure 12 can better fit the ear while taking into account the stability and comfort of the earphone 10 in the wearing state.

[0071] As an example, in combination Figure 7 , Figure 8 and Figure 5 The movement module 11 may include a movement housing 111 connected to the hook structure 12 and a speaker 112 disposed in the movement housing 111. Among them, the movement housing 111 is provided with a sound outlet 111a on the inner side (such as the inner side IS mentioned above) facing the ear in the wearing state, and the sound waves generated by the speaker 112 are propagated 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 housing 111 corresponding to the lower side LS, and can also be provided at the corner between the aforementioned inner side and the lower side 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 produce mechanical vibrations, and then generating sound through the propagation of a medium such as air.

[0072] Furthermore, combined with Figures 7 to 9The earphone 10 may include a main control circuit board 13 disposed in the movement housing 111 and a battery 14 disposed at one end of the hook structure 12 away from the movement module 11, and the battery 14 and the speaker 112 are respectively coupled to the main control circuit board 13 to allow the battery 14 to power the speaker 112 under the control of the main control circuit board 13. Of course, the battery 14 and the speaker 112 may also be both disposed in the movement housing 111, and the battery 14 may be closer to the connection end CE and the speaker 112 may be closer to the free end FE.

[0073] As an example, in combination 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 connected to the external auditory canal in the worn state, 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 the sound waves can be propagated more 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 in the worn state, the aforementioned auxiliary cavity can be configured in a semi-open state. 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 earphone 10 and the outside of 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 in anti-phase in the far field, which is beneficial to reduce the sound leakage of the earphone 10 in the far field.

[0074] Furthermore, the earphone 10 may include an adjustment mechanism connecting the movement module 11 and the hook structure 12. Different users can adjust the relative position of the movement module 11 on the ear through the adjustment mechanism when wearing the earphone, so that the movement module 11 is located at a suitable position, so that the movement module 11 and the concha cavity form the auxiliary cavity. In addition, due to the existence of the adjustment mechanism, the user can also adjust the earphone 10 to a more stable and comfortable position.

[0075] As an example, in combination Figure 6, first wear the earphone 10 on the simulator, then adjust the position of the movement module 11 on the ear of the simulator, and then measure the frequency response curve of the earphone 10 through a detector (such as a microphone) set in the external auditory canal of the simulator (such as the position of the eardrum, that is, the listening position), so as to simulate the listening effect of the user wearing the earphone 10. Among them, the aforementioned frequency response curve can be used to characterize the changing relationship between the vibration magnitude and the frequency; the abscissa of the aforementioned frequency response curve can represent the frequency, in Hz; the ordinate of the aforementioned frequency response curve can represent the vibration magnitude, in dB. Figure 6 In the figure, curve 6_1 can represent the frequency response curve when the movement 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 movement module 11 cooperates with the concha cavity to form the auxiliary cavity in the wearing state. Figure 6 The comparison diagram of the frequency response curves shown can directly and undoubtedly conclude 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 concha cavity when worn, the movement module 11 forms the above-mentioned auxiliary cavity with the concha cavity when worn, which is more conducive to improving the acoustic effect of the earphone 10.

[0076] As an example, in combination Figure 7 , Fig. 9 and Fig.11 , the movement module 11 may include a flexible insert 1131 disposed outside the movement housing 111, and the hardness of the flexible insert 1131 is less than the hardness of the movement housing 111. The movement housing 111 may be a plastic part; the material of the flexible insert 1131 may be silicone, rubber, etc., and may be formed on a preset area of ​​the movement housing 111 by injection molding. Further, 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 at least partially abuts against the cavum concha through the flexible insert 1131. In other words, the portion of the movement housing 111 that extends into the cavum concha 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.

[0077] As an example, the flexible insert 1131 can continuously cover at least part of the area of ​​the core shell 111 corresponding to the rear side RS, the upper side US and the lower side LS. For example, the area of ​​the core shell 111 corresponding to the rear side RS is covered by the flexible insert 1131 by more than 90%, and the area of ​​the core shell 111 corresponding to the upper side US and the lower side LS is covered by the flexible insert 1131 by about 30%. In this way, the comfort of the earphone 10 in the wearing state and the need to set structural parts such as the speaker 112 in the core shell 111 are taken into account.

[0078] In some embodiments, when viewed along the thickness direction X, the flexible insert 1131 may be arranged in a U-shape.

[0079] In some embodiments, the portion of the flexible insert 1131 corresponding to the lower side LS can be against the antitragus. The thickness of the portion of the flexible insert 1131 corresponding to the rear side RS can be respectively smaller than the thickness of the portion of the flexible insert 1131 corresponding to the upper side US and the lower side LS, so that good comfort can be obtained when the movement module 11 is against an uneven position in the concha cavity.

[0080] As an example, in combination Figure 7 and Figure 8 The movement housing 111 may include a movement inner housing 1111 and a movement outer housing 1112 that are buckled together along the thickness direction X. The movement inner housing 1111 is closer to the ear than the movement outer housing 1112 when worn. The parting surface 111b between the movement outer housing 1112 and the movement inner housing 1111 is inclined toward the side where the movement inner housing 1111 is located in the direction close to the free end FE, so that the flexible insert 1131 can be arranged as much as possible in the area of ​​the movement outer housing 111 corresponding to the free end FE. For example: Fig.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.

[0081] As an example, in combination Figure 7 , Figure 8 and Fig.11, the 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 a plastic part; the material of the flexible coating 1132 may be silicone, rubber, etc., and may be formed on a preset area of ​​the movement housing 111 by injection molding, glue connection, etc. Further, the flexible coating 1132 may be integrally covered on at least part of the outer surface of the flexible insert 1131 and at least part of the outer surface of the movement housing 1112 not covered by the flexible insert 1131, which is conducive to enhancing the consistency of the appearance of the movement module 11. Of course, the flexible coating 1132 may be further covered on 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 126 mm 2 With 189mm 2 If the aforementioned area is too small, the comfort of the movement module 11 in the wearing state may be deteriorated; if the aforementioned area is too large, the volume of the movement module 11 may be too large, and the area where the flexible insert 1131 does not abut against the concha cavity may be too large, which is contrary to the original intention of providing the flexible insert 1131. Furthermore, the thickness of the flexible coating 1132 is less than the thickness of the movement housing 1112.

[0082] As an example, in combination Fig.11 and Fig. 9, the movement module 11 may include metal functional patterns such as an antenna pattern 1141 and / or a touch pattern 1142 disposed 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 pasted on 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 arranged in the core housing 111, for example, the main control circuit board 13 is connected to the core housing 1112, the main control circuit board 13 can contact the inner wall of the corresponding metallized hole through elastic metal parts such as pogo-PIN, metal spring, etc., for example, the antenna pattern 1141 and the touch pattern 1142 are respectively connected to the pogo-PIN 131 and pogo-PIN 132 welded on the main control circuit board 13. Accordingly, the speaker 112 is located on the side of the main control circuit board 13 away from the core 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.

[0083] 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 arranged in a U-shape, and the touch pattern 1142 may be arranged in a square shape.

[0084] Furthermore, the core module 11 may include a microphone 133 welded on the main control circuit board 13, and the microphone 133 may pick up user voice and ambient sound through a sound pickup through 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.

[0085] As an example, in combination Fig.10 and Fig.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, and 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. Wherein, when viewed along the width direction Z, and in the reference direction from the connection end CE to the free end FE (for example Fig.10 and Fig.11 In the opposite direction of the arrow Y in the middle), the portion of the first side wall 1114 close to the free end FE gradually approaches the bottom wall 1113 in the thickness direction X, and the portion of the second side wall 1116 close to 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: Fig.11 and Fig. 9 In addition to being arranged on the outside of the second side wall 1116, the flexible insert 1131 is also partially arranged on the outside of the top wall 1115. Accordingly, the sound outlet hole 111a can be arranged on the bottom wall 1113. Of course, the sound outlet hole 111a can also be arranged on the side of the first side wall 1114 corresponding to the lower side surface LS, and can also be arranged at the corner between the first side wall 1114 and the bottom wall 1113. Further, the antenna pattern 1141 and the touch pattern 1142 and their respective metallized holes can be arranged on the top wall 1115, and the pickup through hole of the microphone 133 can also be arranged on the top wall 1115.

[0086] As an example, in combination Figure 7 and Fig.11 The movement 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 movement housing 1112 not covered by the flexible insert 1131 is continuously transitioned to the outer surface of the flexible insert 1131. Figure 7 The area where the middle flexible insert 1131 is located can be simply regarded as the aforementioned embedding groove. 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 to prevent the flexible insert 1131 from overflowing, but also beneficial for improving the appearance quality of the movement module 11 and preventing the surface of the movement module 11 from being bumpy.

[0087] Further, 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, 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 to avoid overflowing of the flexible insert 1131, 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.

[0088] Furthermore, the main control circuit board 13 can be connected to the core housing 1112, for example, fixed on a hot melt column connected to the top wall 1115, and can partially overlap with the first sub-side wall section 1117 in the thickness direction X; the speaker 112 can partially overlap with the second sub-side wall section 1118 in the thickness direction X. In this way, it is beneficial to set a sufficiently large speaker 112 in the core housing 111, thereby enhancing the sound volume produced by the earphone 10.

[0089] As an example, in combination Fig.10 and Figure 8 , the movement housing 111 may be provided with a pressure relief hole 111c, and the pressure relief hole 111c 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) 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 being heard.

[0090] Furthermore, the movement housing 111 may be provided with a tuning hole 111d, and the tuning hole 111d makes the resonance frequency of the second sound leakage shift to a higher frequency band (for example, a frequency range greater than 4kHz) as much as possible, which is conducive to further avoiding the second sound leakage from being heard. Among them, the area of ​​the 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 tuning hole 111d in the width direction Z, so as to avoid the sound waves propagated through the sound outlet hole 111a and the pressure relief hole 111c respectively from canceling each other out in the near field, which is conducive to increasing 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 to increase the distance between the two in the length direction Y, thereby avoiding the anti-phase cancellation of the sound waves propagated through the sound outlet hole 111a and the sound tuning hole 111d in the near field, which is beneficial to increase the volume of the sound propagated through the sound outlet hole 111a heard by the user.

[0091] As an example, in combination Fig.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 the processing cost. 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.

[0092] As an example, in combination 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, the 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.

[0093] Furthermore, the bracket 115 cooperates with the movement housing 111 to form a first glue groove 1171 surrounding at least a portion of the acoustic hole. The first glue groove 1171 contains a first glue for sealing the assembly gap between the bracket 115 and the movement housing 111, that is, waterproof sealing is performed by the first glue, which is conducive to preventing external sweat, rainwater and other droplets from invading the space where the main control circuit board 13 is located in the movement housing 111. In this way, based on the Helmholtz resonance cavity, compared with the related art that a silicone sleeve is pressed on the movement housing 111 by the bracket 115 for waterproof sealing, the present technical solution uses the first glue for waterproof sealing, which can save the aforementioned silicone sleeve in the related art, and is conducive to shortening the length of the part of the acoustic cavity 116 that is connected to the external environment (including the acoustic channel 1151 and the acoustic hole), so that the resonance frequency of the leakage sound (that is, the second leakage sound) formed by propagating through the pressure relief hole 111c is shifted to a higher frequency band (for example, a frequency range greater than 4kHz) as much as possible, thereby further preventing the second leakage sound from being heard.

[0094] It should be noted that: when the acoustic hole is a 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 a 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 a pressure relief hole 111c and a 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 , Fig.10 and Fig.12, the present application takes the acoustic holes as the pressure relief hole 111c and the sound adjustment hole 111d, and the first glue containing groove 1171 surrounds at least a part of the pressure relief hole 111c and the sound adjustment hole 111d respectively as an example for exemplary description. Further, if the gap between the bracket 115 and the movement housing 111 (for example, its bottom wall 1113) is large enough, or the bottom wall 1113 and the first side wall 1114 in the movement housing 111 are not an integrally formed structural part (that is, two separate structural parts), then the first glue containing groove 1171 can surround all of the acoustic holes, that is, the first glue containing groove 1171 is a complete annular structure.

[0095] As an example, in combination Fig.12 and Fig.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 runs through the docking portion 1153 and the annular main body 1152. Further, the docking portion 1153 is located between the annular main body 1152 and the movement shell 111, and surrounds at least a portion of the above-mentioned acoustic hole, and the docking portion 1153 cooperates with the movement 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. Correspondingly, 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.

[0096] As an example, in combination Fig.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 may be pre-fixed at the bottom of the recessed area 1119 by double-sided tape or glue; the acoustic resistance net 118 may also be pre-fixed on the protective steel net first, and the aforementioned protective steel net is then pre-fixed at 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.

[0097] Furthermore, the 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 housing 111 (such as the side wall of the recessed area 1119), which is conducive to further waterproof sealing.

[0098] As an example, in combination Figure 8 , Fig.10 and Fig.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 shell 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 shell 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 shell 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 of the first glue containing groove 1171 and a part of the bottom wall, and the movement shell 111 can be used to form the other side wall of the first glue containing groove 1171 and another part of the bottom wall.

[0099] As an example, in combination Figure 12 to Figure 14The speaker 112 may include a body 1121 and an annular support 1122 arranged 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-type on the side facing the annular support 1122. The annular support 1122 further blocks the open part of the acoustic channel 1151. At this time, the first glue groove 1171 may be simply regarded as a part surrounding the acoustic hole, so as to facilitate the subsequent use of glue filling in the first glue groove 1171 by methods such as glue dispensing process.

[0100] In some embodiments, the annular platform 1122 may include a first annular table 1123 and a second annular table 1124 arranged in a stepped shape, 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.

[0101] In some embodiments, the upper end of the bracket 115 can be placed on the body 1121 and cooperate with the body 1121 to form a third glue groove 1173, which contains a third glue for sealing the assembly gap between the bracket 115 and the body 1121 to perform corresponding waterproof sealing.

[0102] It should be noted that: in the specific assembly process of the movement module 11, the following process steps may be included, and the order of all process steps may be adjusted as needed: 1) pre-fix the acoustic resistance net 118 at the bottom of the recessed area 1119 by double-sided adhesive; 2) fix the speaker 112 on the bottom wall 1113, and dispense glue to 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, 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 applied to 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 movement inner shell 1111. Among them, since the assembly gap between the lower end of the bracket 115 and the speaker 112 and the movement inner shell 1111 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 movement inner shell 1111 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.

[0103] As an example, in combination Figures 15 to 18 and Figure 7 , the hook-shaped structure 12 may include a transfer housing 122 connected to the movement module 11, the transfer housing 122 may be pre-formed with a receiving cavity 124, and the earphone 10 may include an electronic component 15 subsequently installed in the receiving cavity 124. Among them, the connection method between the transfer housing 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 electronic component 15 being arranged in the movement module 11 in the related art, the present technical solution not only helps to save the space of the movement module 11 and make it more compact and small in structure, but also helps to simplify the structure of the movement module 11 and make it more efficient to assemble, and also helps to reasonably arrange 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.

[0104] 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 refer to the electronic component 15 and the adapter shell 122 being non-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 in the following text 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, and 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.

[0105] As an example, in combination Figure 7 , the electronic component 15 can be coupled with the main control circuit board 13 to realize the electrical connection between the hook structure 12 and the movement module 11, and the adapter housing 122 can be plugged and fixed with the movement housing 111 to realize the 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 that one of the adapter housing 122 and the movement housing 111 first partially extends into the other along the assembly direction and then is plugged and fixed with the help of other limiting structures such as latches, 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 that when one of the adapter housing 122 and the movement housing 111 partially extends into the other, it can be plugged and fixed without the help of the aforementioned limiting structure.

[0106] As an example, in combination Figure 7 , Fig.10 and Fig.16 , the transfer housing 122 may be provided with a first snap-fit ​​structure 1221, and the core housing 111 may be provided with a second snap-fit ​​structure 1222, the first snap-fit ​​structure 1221 extends into the core housing 111, and is snap-fitted with the second snap-fit ​​structure 1222, so that the transfer housing 122 and the core housing 111 are snap-fitted and fixed, and the two are directly plugged and fixed without the aid of other limiting structures, which is simple and reliable. Among them, the first snap-fit ​​structure 1221 may be integrally provided on the transfer housing 122, and two may be relatively spaced apart in the thickness direction X; the second snap-fit ​​structure 1222 may be integrally provided on the core inner shell 1111, and is provided one-to-one with the first snap-fit ​​structure 1221.

[0107] As an example, in combination Figure 7, the earphone 10 may include a flexible circuit board 16, which may be at least partially disposed in the accommodating cavity 124 to connect with the electronic component 15 and extend into the movement housing 111, so that the electronic component 15 is connected to the main control circuit board 13 through the flexible circuit board 16. For example, the electronic component 15 is welded to one end of the flexible circuit board 16 by means of surface mount technology (SMT), and the other end of the circuit board of the flexible circuit board 16 and the main control circuit board 13 are buckled by means of a BTB connector. Among them, the speaker 112 may be arranged to be connected to the flexible circuit board 16 on the extension path of the flexible circuit board 16, for example, the lead of the speaker 112 is welded on the corresponding area of ​​the flexible circuit board 16, so that the speaker 112 is also connected to the main control circuit board 13 through the flexible circuit board 16, so that the lead of the speaker 112 does not need to be extended to connect with the main control circuit board 13, which is conducive to simplifying the wiring structure of the earphone 10 and reducing the production cost.

[0108] As an example, in combination Fig.16 and Fig.15 , the adapter shell 122 may be pre-formed with a through hole 1251 that is connected to the accommodating cavity 124, and 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. Among them, 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 headset 10 in the worn state.

[0109] 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.

[0110] Furthermore, a plurality of electrode terminals 151 may be provided according to actual usage requirements, for example, for charging, detection, etc.

[0111] In some embodiments, the electrode terminal 151 may include a positive charging terminal 1511 and a negative charging terminal 1512 that are spaced apart from each other, and the positive charging terminal 1511 and the negative charging terminal 1512 may be respectively disposed in respective through holes 1251, so that the earphone 10 can be charged through the electrode terminal 151. Of course, only one of the positive charging terminal 1511 and the negative charging terminal 1512 may be disposed on the adapter housing 122, and the other may be disposed on other housings in the hook structure 12, such as the battery housing 123, or on the movement inner housing 1111.

[0112] 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, and the detection terminal 1513 may be used to perform detection functions such as charging detection, detection of the earphone 10 being placed in or taken out of the charging box, etc. Of course, the detection terminal 1513 may also be replaced by an electronic component such as a Hall sensor.

[0113] 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.

[0114] 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 spaced apart from each other, for example, in a straight line segment. Among them, the distance between the positive charging terminal 1511 and the negative charging terminal 1512 can be greater than the distance between the negative charging terminal 1512 and the detection terminal 1513. For example, the negative charging terminal 1512 is located between the positive charging terminal 1511 and the detection terminal 1513, and the distance between the positive charging terminal 1511 and the negative charging terminal 1512 is greater than the distance between the negative charging terminal 1512 and the detection terminal 1513; for another example, the detection terminal 1513 is located between the positive charging terminal 1511 and the negative charging terminal 1512. In this way, when the space for setting the electrode terminal 151 on the adapter housing 122 is limited, the distance between the positive charging terminal 1511 and the negative charging terminal 1512 is increased as much as possible, which is conducive to avoiding a short circuit between the two.

[0115] As an example, in combination Fig.15, a boss 126 may be provided on the outside of the transfer housing 122, and a through hole 1251 further penetrates the boss 126, so that a plurality of electrode terminals 151 are exposed at the boss 126. In this way, the boss 126 makes the uneven part of the transfer housing 122 due to a certain curvature become flat, so as to facilitate the arrangement of the electrode terminal 151. Among them, the positive charging terminal 1511, the negative charging terminal 1512 and the detection terminal 1513 may be arranged in sequence along the length direction of the boss 126.

[0116] As an example, in combination Figures 15 to 17 , the hook structure 12 may include a magnet 127, and the magnet 127 and the electrode terminal 151 may be exposed on the same side of the transfer housing 122, that is, both may be visible on the same side surface of the transfer housing 122, so that the magnet 127 is closer to the outside world to which the exposed end of the electrode terminal 151 faces, thereby shortening the distance between the magnet 127 and the magnetic attraction structure used to cooperate with the magnet 127 in a charging device such as a charging box, or the distance between the Hall sensor used to cooperate with the magnet 127, which is conducive to improving the reliability of functions such as charging and detection. Among them, the magnet 127 and the electrode terminal 151 may be arranged adjacent to each other to allow the magnet 127 to cooperate with the magnetic attraction structure in a charging device such as a charging box, so that the electrode terminal 151 cooperates with the electrode terminal in the charging device to facilitate charging. Accordingly, the boss 126 may protrude from the transfer housing 122 around 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 box. Of course, in an implementation where 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 disposed adjacent to the electrode terminal 151, and the electrode terminal in a charging device such as a charging box that is used to cooperate with the electrode terminal 151 can also be disposed adjacent to the aforementioned Hall sensor. This is beneficial in reducing the area in a charging device such as a charging box that is used to carry the aforementioned electrode terminal and the aforementioned Hall sensor.

[0117] Further, the hook structure 12 may include a flexible coating 128, and the hardness of the flexible coating 128 is less than the hardness of the adapter shell 122. Among them, the adapter shell 122 may be a plastic part; the material of the flexible coating 128 may be silicone, rubber, etc., and may be formed on the adapter shell 122 by injection molding, glue connection, etc. Further, the flexible coating 128 may cover the adapter shell 122 and the magnet 127, so that the magnet 127 is not exposed and the electrode terminal 151 is exposed, that is, the magnet 127 is invisible and the electrode terminal 151 is visible. In this way, the use requirements of the electrode terminal 151 can be met, and the magnet 127 can be shielded to prevent it from being exposed and worn or affecting the appearance quality. In addition, the flexible coating 128 is also conducive to improving the comfort of the earphone 10 when wearing. Among them, the thickness of the flexible coating 128 is less than the thickness of the adapter shell 122.

[0118] As an example, in combination Fig.16 The adapter housing 122 may be pre-formed with a blind hole 1252 that is not connected to the accommodating chamber 124, so as to increase the waterproof and dustproof performance of the accommodating chamber 124. The magnet 127 may be at least arranged in the blind hole 1252 and exposed through the open end of the blind hole 1252. In this way, it is not only helpful to reduce the thickness of the adapter housing 122 in the area where the magnet 127 is located, but also helpful to improve the appearance quality of the earphone 10 in the area where the magnet 127 is located. Of course, the blind hole 1252 may also be set as a through hole.

[0119] As an example, in combination Fig.15 , along the extension direction of the electrode terminal 151, the plurality of electrode terminals 151 may be arranged at intervals to form a line segment, such as a straight line segment or a broken line segment. Among them, the magnet 127 may be located on any side of the aforementioned line segment, or the magnet 127 intersects with the aforementioned line segment and is at least partially located between any two adjacent electrode terminals 151. For example: the number of magnets 127 is one, and the magnet 127 is located on one side of the aforementioned line segment as a whole, or intersects with the aforementioned line segment and is located between any two adjacent electrode terminals 151 as a whole. For another example: the number of magnets 127 is two, one magnet 127 is located on one side of the aforementioned line segment as a whole, and the other magnet 127 is located on the other side of the aforementioned line segment as a whole. For another example: the number of magnets 127 is one, a part of the magnet 127 intersects with the aforementioned line segment and is located between any two adjacent electrode terminals 151, and the other part is located below the electrode terminal 151 in the aforementioned extension direction.

[0120] As an example, in combination Fig.15, the plurality of 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 may be located on one side of the aforementioned straight line segment. Further, 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 in which the hook-shaped structure 12 is provided with a flexible coating 128, in order to facilitate the determination of the relative position relationship between the magnet 127, the charging positive terminal 1511, the charging negative terminal 1512 and the detection terminal 1513, the flexible coating 128 can be removed first.

[0121] As an example, in combination 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 are respectively connected to the accommodating cavity 124. Among them, due to the different functions of the electrode terminal 151 and the microphone 152, 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 the sound outside the earphone 10 (such as user voice, environmental sound) through 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 small. Furthermore, the earphone 10 may include a support assembly 17 at least partially disposed in the accommodating cavity 124, and the support assembly 17 may respectively support and fix the electrode terminal 151 and the microphone 152 on the side walls corresponding to the through hole 1251 and the through hole 1253. In this way, it is not only helpful to prevent the electrode terminal 151 and the microphone 152 from being separated from the adapter housing 122, but also helpful to increase the waterproof and dustproof performance of the electronic component 15, and the structure is simple and reliable.

[0122] As an example, in combination Fig.18, the 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 of an integrated structure, the electrode terminal 151 is welded to the first circuit board portion 161, the second circuit board portion 162 is bent relative to the first circuit board portion 161, and the microphone 152 is welded to the third circuit board portion 163 and 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 may correspond to three adjacent sides of the hexagonal structure. Among them, one 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, and the other parts are not connected to the first circuit board portion 161. In this way, after the flexible circuit board 16 and the electrode terminals 151 and the 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 to make it as flush as possible with the first circuit board portion 161 to avoid the support component 17 that is assembled subsequently.

[0123] In some embodiments, the transfer 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 a receiving 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 housings 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 transfer 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.

[0124] In some embodiments, at least the portion of the adapter housing 122 corresponding to the accommodating cavity 124 is a complete housing structure. Among them, at least the first support member of the support assembly 17 for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 can be independent of the adapter housing 122 to at least facilitate the assembly of the electrode terminal 151.

[0125] As an example, in combination Fig.18 , the support assembly 17 can be independent of the transfer housing 122 and inserted into the accommodating cavity 124. In this way, since the support assembly 17, the electrode terminal 151 and the microphone 152 can be independent of the transfer housing 122, they can be assembled in a certain sequence, which is conducive to avoiding unnecessary interference in the structure and making the assembly efficiency higher.

[0126] 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. In this way, the first support member and the second support member in the support assembly 17 can be designed differently according to actual needs.

[0127] 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 conducive to avoiding the first support member and the second support member being too small to be difficult to assemble. 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, the support assembly 17 has a certain damping during the insertion or removal process, and the structure is simple and reliable. Correspondingly, 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 be further glued to the cavity wall of the accommodating cavity 124 by means of a glue dispensing process.

[0128] As an example, in combination Fig.17 and Fig.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 Fig.17 and Fig.18 The dimension in at least one reference direction (the direction indicated by the arrow in the middle) can be set to gradually decrease along the aforementioned insertion direction, so that the support component 17 can be extended into the spacing area between the electrode terminal 151 and the microphone 152. In other words, the dimension of at least part of the support component 17 in at least one reference direction perpendicular to the aforementioned insertion direction can be set to gradually decrease along the aforementioned insertion direction, and the dimension of at least part of the accommodating cavity 124 in the same reference direction can be set to gradually decrease along the aforementioned insertion direction, and the change trends of the two are the same or similar, which is conducive to the support component 17 being tightly matched and fixed with the cavity wall of the accommodating cavity 124 after being inserted into place.

[0129] As an example, in combination Figures 16 to 18, the 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. Among them, the through hole 1251 may be arranged on the first cavity wall 1241, and the through hole 1253 may be arranged on the third cavity wall 1243. Correspondingly, the supporting 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. Among them, one side main surface of the bottom plate 171 may be arranged opposite to the first cavity wall 1241, and support the electrode terminal 151; one side main surface of the first side plate 172 may be arranged opposite to 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.

[0130] 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 is conducive to a more compact structure of each part.

[0131] In some embodiments, the size of at least part of the bottom plate 171 and the accommodating cavity 124 in the first reference direction RD1 perpendicular to the insertion direction and parallel to the main surface of one side of the bottom plate 171 can be set to gradually decrease along the insertion direction, that is, one of the front end and the rear end of the bottom plate 171 in the insertion direction or the part between the front end and the rear end can be set to keep the size in the first reference direction RD1 unchanged along the insertion direction. Among them, the size of the first side plate 172 and the accommodating cavity 124 in the second reference direction RD2 perpendicular to the insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to remain unchanged along the insertion direction.

[0132] In some embodiments, the size of at least part of the first side plate 172 and the accommodating cavity 124 in the second reference direction RD2 perpendicular to the 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 insertion direction, that is, one of the front end and the rear end of the first side plate 172 in the insertion direction or the part between the front end and the rear end can be set to keep the size in the second reference direction RD2 unchanged along the insertion direction. Among them, the size of the bottom plate 171 and the accommodating cavity 124 in the first reference direction RD1 perpendicular to the insertion direction and parallel to the main surface of one side of the bottom plate 171 can be set to remain unchanged along the insertion direction.

[0133] 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 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 a 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.

[0134] 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 .

[0135] As an example, in combination 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 at intervals on the same side of the bottom plate 171, and the second side plate 173 abuts against the second cavity wall 1242 to provide the bottom plate 171 with a supporting force toward the electrode terminal 151, which is conducive to improving the supporting effect of the support assembly 17 on the electrode terminal 151. In the embodiment where the electrode terminal 151 includes a charging positive terminal 1511 and a charging negative terminal 1512 arranged at intervals along a direction perpendicular to the above-mentioned insertion direction, the second side plate 173 may be located between the charging positive terminal 1511 and the charging negative terminal 1512, so that each part of the electrode terminal 151 is subjected to uniform force, which is conducive to further improving the supporting effect of the support assembly 17 on the electrode terminal 151.

[0136] As an example, in combination 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 arc surface structure expanding outward from each other, so as to maximize the volume of the accommodating cavity 124 when the volume of the transfer housing 122 is limited. Correspondingly, 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 improve the supporting effect of the supporting assembly 17 on the microphone 152 .

[0137] Further, relative to the bottom plate 171, the height of the second side plate 173 may be greater than the height of the first side plate 172 and the height of the third side plate 174, so that the second side plate 173 abuts against the second cavity wall 1242, and the third side plate 174 abuts against the fourth cavity wall 1244. Since the second side plate 173 and the third side plate 174 do not directly contact any of the electrode terminal 151 and the microphone 152, they can also be guided during the insertion of the support assembly 17 into the accommodating cavity 124. Accordingly, since the height of the second side plate 173 is relatively the highest, the support assembly 17 may include a reinforcing rib 175 connecting the second side plate 173 and the bottom plate 171. The reinforcing rib 175 may be provided on opposite sides of the second side plate 173 facing the first side plate 172 and the third side plate 174.

[0138] As an example, in combination Figures 15 to 17 and Fig. 9 The hook structure 12 may include an elastic wire 121, a transfer housing 122, a battery housing 123 and a wire 129. The two ends of the elastic wire 121 and the wire 129 may be connected to the transfer housing 122 and the battery housing 123, respectively, so that the wire 129 extends along the elastic wire 121 and is inserted into the transfer housing 122 and the battery housing 123. Of course, the wire 129 may also be inserted into the preset threading channel after the elastic wire 121 is connected to the transfer housing 122 and the battery housing 123. Among them, the battery 14 may be arranged in the battery housing 123, and may be connected to the flexible circuit board 16 through the wire 129, so that the battery 14 is also connected to the main control circuit board 13 through the flexible circuit board 16, which is conducive to simplifying the wiring structure of the earphone 10 and reducing the production cost. In other words, components such as the electrode terminal 151, the microphone 152 and the battery 14 in the hook structure 12 can be connected to the main control circuit board 13 through the flexible circuit board 16.

[0139] Furthermore, the flexible covering layer 128 may further cover at least the exposed parts of the elastic metal wire 121 and the wire 129 , and 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 .

[0140] 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.

[0141] Based on the above-mentioned related description, the present application provides a shell component, which may include a plastic shell, a metal functional pattern and a silicone coating, wherein the metal functional pattern is arranged on the outside of the plastic shell, and the silicone coating may be covered on the side of the metal functional pattern away from the plastic shell and on the plastic shell not covered by the metal functional pattern by means of integral injection molding, glue connection, etc. Thus, compared with the metal functional pattern being arranged on the inner side of the plastic shell away from the silicone coating, the metal functional pattern is arranged on the outer side of the plastic shell toward the silicone coating, so that it is further away from the interference of other electronic components in the shell component, or closer to the signal trigger source outside the shell component, thereby increasing the anti-interference and sensitivity of the metal functional pattern. Among them, the structure of the plastic shell may be the same or similar to that of the movement shell 111 or its movement shell 1112, and the structure of the silicone coating may be the same or similar to that of the flexible coating 1132, which will not be described in detail here.

[0142] 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, which can increase the distance between the antenna pattern 1141 and other electronic components in the plastic housing, that is, increase the antenna clearance area, thereby increasing the anti-interference performance of the antenna pattern 1141; the touch pattern 1142 is configured on the outside of the plastic housing, which can shorten the distance between the touch pattern 1142 and an external signal trigger source (such as a user's finger), that is, shorten the touch distance, thereby increasing the sensitivity of the touch pattern 1142 to be triggered by the user.

[0143] 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.

[0144] In some embodiments, the thickness of the silicone coating may be less than the thickness 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.

[0145] As an example, the housing assembly can be used 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 described in detail.

[0146] Furthermore, in addition to being applied to the earphones 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 earphones 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.

[0147] The present application provides a shell assembly, which may include a first shell, an electrode terminal 151, a magnet 127 and a flexible coating 128, wherein the electrode terminal 151 and the magnet 127 are exposed on the same side of the first shell, and the hardness of the flexible coating 128 is less than that of the first shell, and covers the first shell and the magnet 127, so that the magnet 127 is not exposed and the electrode terminal 151 is exposed. In this way, compared with the magnet 127 being arranged in the first shell, the technical solution makes the magnet 127 closer to the outside world to which the exposed end of the electrode terminal 151 faces, thereby shortening the distance between the magnet 127 and the magnetic attraction structure used to cooperate with the magnet 127 in the charging device such as the charging box or the distance between the Hall sensor used to cooperate with the magnet 127, which is conducive to improving the reliability of functions such as charging and detection. Therefore, the shell assembly can be applied to both power receiving devices such as headphones 10 and smart glasses, and charging devices such as charging boxes. In other words, the electronic device can be either a power receiving device or a charging device. Among them, for the convenience of description, the first shell can be a transfer shell 122.

[0148] In some embodiments, the first shell may be provided with a through hole 1251 and a blind hole 1252, the electrode terminal 151 may be at least partially disposed in the through hole 1251, and the magnet 127 may be at least partially disposed in the blind hole 1252 and exposed through the open end of the blind hole 1252. In this way, it is not only helpful to reduce the thickness of the first shell in the area where the magnet 127 is located, but also helpful to improve the appearance quality of the first shell in the area where the magnet 127 is located. Of course, the blind hole 1252 may also be provided as a through hole.

[0149] In some embodiments, a boss 126 may be provided on the outside of the first shell, the boss 126 is provided adjacent to the magnet 127 and protrudes from the first shell around the magnet 127, and the through hole 1251 further penetrates the boss 126, so that the plurality of electrode terminals 151 are exposed at the boss 126. In this way, the boss 126 makes the uneven part of the first shell due to a certain curvature become flat, so as to facilitate the arrangement of the electrode terminal 151. Among them, the boss 126 can be provided in a long strip shape, which is simple and reliable in structure.

[0150] In some embodiments, the housing assembly may include a flexible circuit board 16, and the electrode terminal 151 is connected to the flexible circuit board 16 to simplify the routing of the electrode terminal 151. The first housing may be formed with a receiving cavity 124, and at least part of the flexible circuit board 16 may be disposed in the receiving cavity 124. The through hole 1251 is connected to the receiving cavity 124, and the blind hole 1252 is not connected to the receiving cavity 124, so as to improve the waterproof and dustproof performance of the first housing.

[0151] In some embodiments, the housing assembly may include a second housing, an elastic wire 121, and a wire 129, and the two 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. Further, a battery 14 is disposed in the second housing, and the battery 14 is connected to the flexible circuit board 16 through the wire 129, that is, the battery 14 and the electrode terminal 151 are both connected to the flexible circuit board 16 to simplify the wiring. Accordingly, the flexible coating 128 at least further covers the elastic wire 121 and the wire 129, so that the wire 129 is exposed.

[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. For ease of description, the third housing can be the core housing 111 .

[0153] 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 housing cavity 124, and through holes 1251 and 1253 respectively connected to the housing cavity 124, the through holes 1251 and 1253 are located on different side walls of the first housing, the electrode terminal 151 may be at least partially disposed in the through hole 1251, the microphone 152 may be disposed in the housing cavity 124, and pick up the sound outside the housing assembly through the through hole 1253. Further, the support assembly 17 may be disposed in the housing cavity 124, and may support and fix the electrode terminal 151 and the microphone 152 on the side walls corresponding to the through hole 1251 and the through hole 1253, respectively. In this way, it is not only beneficial to prevent the electrode terminal 151 and the microphone 152 from being separated from the first housing, but also beneficial to increase the waterproof and dustproof performance at the electrode terminal 151 and the microphone 152, and the structure is simple and reliable. For the convenience of description, the first shell may 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.

[0154] In some embodiments, the support assembly 17 may be independent of the first shell and inserted into the accommodating cavity 124 .

[0155] In some embodiments, the support assembly 17 may be an integrally formed structure.

[0156] In some embodiments, the housing assembly can be used for the earphone 10 and can include a third housing for accommodating the speaker 112 , and the third housing is 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 .

[0157] Furthermore, in addition to being applied to the earphones 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 earphones 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 technicians in this field and will not be repeated here.

[0158] As an example, in combination Fig.19 and Fig. 20, 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 be a structure bent or folded into a hook shape, or a rod-shaped structure that is not parallel to the extension direction of the movement module 11. The rod-shaped structure can cooperate with the movement module 11 to play a "hook-shaped" role, that is, the earphone can be worn on the human ear. Correspondingly, the charging box 20 may include a lower shell component 21, and the lower shell component 21 may be provided with two contoured grooves 211 for accommodating the earphone 10 respectively, each contoured groove 211 may include a first contoured groove area 2111 corresponding to the movement module 11 and a second contoured groove area 2112 corresponding to the hook-shaped structure 12, and the second contoured groove areas 2112 of the two contoured grooves 211 are arranged to intersect with each other. In this way, when the two contoured grooves 211 respectively accommodate the earphones 10, the hook structures 12 of the two earphones 10 can overlap each other, for example, stacked up and down, which is conducive to reducing the volume of the charging box 20, making it more compact and convenient for users to carry. It should be noted that overlapping each other means that there is at least an overlapping area between each other, including partial overlap and complete overlap.

[0159] In some embodiments, in combination Fig.19 , the projections of the first profiling groove area 2111 and the second profiling groove area 2112 in the first reference direction overlap. And, the projections of the first profiling groove area 2111 and the second profiling groove area 2112 in the second reference direction overlap. Wherein, the first reference direction and the second reference direction are perpendicular. In this way, when the earphone 10 is placed in the profiling groove 211, the projection length of the charging box 20 occupied by the second profiling groove area 2112 in the first reference direction can overlap with the projection length of the charging box 20 occupied by the first profiling groove area 2111 in the first reference direction, and the projection length of the charging box 20 occupied by the second profiling groove area 2112 in the second reference direction can overlap with the projection length of the charging box 20 occupied by the first profiling groove area 2111 in the second reference direction, so that the volume of the charging box 20 is reduced accordingly, so as to facilitate the user to carry. The reduction in the volume of the charging box 20 is related to the overlap degree of the above-mentioned projection length in the first reference direction and the projection in the second reference direction. In other words, when the earphone 10 is placed in the contoured groove 211, the projection of the movement module 11 of the earphone 10 overlaps with the projection of the hook structure 12 in the first reference direction, and the projection of the movement module 11 overlaps with the projection of the hook structure 12 in the second reference direction. It should be noted that the above-mentioned first reference direction and the second reference direction are two directions perpendicular to the thickness direction of the charging box 20 and orthogonal to each other. The first reference direction in the present application has a variety of different implementations, and the following is an exemplary description of different implementations of the first reference direction. The following implementation of the first reference direction is at least one of the following implementations, which will not be repeated.

[0160] 1) In some embodiments, when two profiling grooves 211 are arranged at intervals in the lower shell component 21, the first reference direction can be the arrangement direction of the two profiling grooves 211 (i.e., the line connecting the geometric centers of the two profiling grooves 211) or a direction perpendicular to the arrangement direction.

[0161] 2) In some embodiments, when the upper shell assembly 24 opens or closes the charging box 20 by rotating relative to the lower shell assembly 21, the first reference direction may refer to a direction perpendicular to or parallel to the rotation axis of the upper shell assembly 24 relative to the lower shell assembly 21.

[0162] 3) In some embodiments, when the two profiling grooves 211 are arranged axially symmetrically, the first reference direction may be a direction perpendicular or parallel to the symmetry axes of the two profiling grooves 211 .

[0163] Optionally, the first reference direction may also be the direction of a line connecting the same characteristic points of the two contoured grooves 211 or a direction perpendicular to the direction of the line.

[0164] It should be noted that the charging box 20 has a thickness direction and the profiling groove 211 has a depth direction. Fig.24 , the thickness direction of the charging box 20 and the depth direction of the profiling groove 211 of the present application may refer to the direction perpendicular to the contact plane between the charging box 20 and the horizontal surface after the charging box 20 is placed stably on the horizontal surface. The thickness direction of the charging box 20 and the depth direction of the profiling groove 211 in the following embodiments are the same and will not be repeated. It should be noted that in the actual production process, due to process reasons, there are errors in verticality. In other words, in actual products, the two objects of the present application are perpendicular to each other, which means that the verticality of the two objects is within the allowable tolerance range. The verticality is a position tolerance. The specific tolerance range can be determined by referring to the relevant national standards. The same is true for symmetry, which will not be repeated. On the other hand, the projection overlap of the present application includes two situations: complete projection overlap and partial projection overlap.

[0165] In some embodiments, in combination Fig.19, the first contoured groove area 2111 and the first part 2112a of the second contoured groove area 2112 overlap in projection in the first reference direction. In this way, when the earphone 10 is placed in the contoured groove 211, the size of the charging box 20 occupied by the first part 2112a of the second contoured groove area 2112 can overlap with the size of the charging box 20 occupied by the first contoured groove area 2111. In other words, the charging box 20 can simultaneously accommodate the first part 2112a of the second contoured groove area 2112 and the first contoured groove area 2111 in the second reference direction with the first size, and the aforementioned first size is smaller than the sum of the size of the first part 2112a of the second contoured groove area 2112 in the second reference direction and the size of the first contoured groove area 2111 in the second reference direction, so that the size of the charging box 20 in the second reference direction can be reduced while ensuring that the earphone 10 is accommodated, so as to facilitate the user to carry.

[0166] In some embodiments, in a second reference direction perpendicular to the first reference direction, the projections of the second portion 2112b of the second contoured groove area 2112 and the first contoured groove area 2111 overlap. In this way, when the earphone 10 is placed in the contoured groove 211, the size of the charging box 20 occupied by the second portion 2112b of the second contoured groove area 2112 can overlap with the size of the charging box 20 occupied by the first contoured groove area 2111. In other words, the charging box 20 can accommodate the second portion 2112b of the second contoured groove area 2112 and the first contoured groove area 2111 at the same time in the first reference direction with the second size, and the aforementioned second size is smaller than the sum of the size of the second portion 2112b of the second contoured groove area 2112 in the first reference direction and the size of the first contoured groove area 2111 in the first reference direction, so that the size of the charging box 20 in the first reference direction can be reduced while ensuring that the earphone 10 is accommodated, so as to facilitate the user to carry.

[0167] In some embodiments, the first part 2112a of the first profiling groove area 2111 and the second part 2112b of the first profiling groove area 2112 overlap in the first reference direction. In addition, the second part 2112b of the first profiling groove area 2111 and the second profiling groove area 2112 overlap in the second reference direction. In this way, the charging box 20 can make the size occupied by the charging box 20 in the first reference direction and the second reference direction more reasonable by adjusting the proportion of the projection overlap of the first profiling groove area 2111 and the second profiling groove area 2112 in the first reference direction and the second reference direction, so that the shape of the charging box 20 can be more square, which is not only more beautiful, but also makes it easier for the user to store the charging box 20 in a pocket or backpack.

[0168] Specifically, in some cases, the first portion 2112a of the second profiling groove area 2112 corresponds to the battery housing 123 in the hook structure 12, and the second portion 2112b of the second profiling groove area 2112 corresponds to the elastic portion of the hook structure 12. The first profiling groove area 2111 and the first portion 2112a of the second profiling groove area 2112 overlap in projection in the first reference direction, that is, when the earphone 10 is placed in the profiling groove 211, the battery housing 123 and the movement module 11 overlap in projection in the first reference direction. The second portion 2112b of the second profiling groove area 2112 overlaps in projection with the first profiling groove area 2111, that is, when the earphone 10 is placed in the profiling groove 211, the elastic portion and the movement module 11 overlap in projection in the second reference direction.

[0169] Further, in the second reference direction, the second portion 2112b of the second profiling groove area 2112 is located on the side of the first profiling groove area 2111 away from the edge of the lower shell component 21 adjacent to the first profiling groove area 2111. In other words, the second profiling groove areas 2112 of the two profiling groove areas 211 are arranged close to each other. In this way, when the two earphones 10 are accommodated, the parts of the hook-shaped structures 12 in the two earphones 10 with a smaller thickness than the core module 11 can be arranged close to each other. In addition, the second profiling groove areas 2112 of the two profiling grooves 211 are arranged to intersect with each other, so that when the two profiling grooves 211 accommodate the earphones 10 respectively, the hook-shaped structures 12 of the two earphones 10 overlap with each other. And because the hook-shaped structure 12 of the earphone 10 is thinner than the core module 11, the two hook-shaped structures 12 can further improve the utilization rate of the space of the charging box 20 after being close to and overlapping each other, which is conducive to reducing the volume of the charging box 20.

[0170] In some embodiments, in combination Fig. 20 The hook structure 12 includes a battery housing 123, and an elastic part connecting the battery housing 123 and the movement module 11. The two second profiling groove areas 2112 are arranged so that when accommodating two earphones 10, the elastic parts of the earphones 10 overlap each other. The elastic part is thinner than the battery housing 123. By overlapping the elastic parts of the two earphones 10, the space occupied by the hook structure 12 in the thickness direction of the charging box 20 can be reduced, which is conducive to the reduction of the volume of the charging box 20. Among them, the two elastic parts have a variety of overlapping modes, for example, the edge parts of the two elastic parts close to each other overlap to form an overlapping area. Alternatively, the elastic part is arranged in an arc shape, and the two elastic parts overlap each other. Since the two elastic parts have a certain volume, two non-connected overlapping areas will be formed, and the geometric centers of the two overlapping areas form two overlapping points. Optionally, the two profiling grooves 211 are mirror-symmetrical with the line connecting the two overlapping points as the symmetry axis; the direction of the line connecting the two overlapping points is parallel to the first reference direction or the second reference direction.

[0171] In other embodiments, the second contoured groove areas 2112 of the two contoured grooves 211 are independently arranged. In this way, the two earphones 10 can be relatively independently accommodated in the charging box 20, and the use of the two earphones 10 will not be affected by each other, which can facilitate the user to use them separately.

[0172] Furthermore, the charging box 20 may include a main control circuit board 221 disposed in the lower shell assembly 21 and electrode terminals 222 disposed on the main control circuit board 221. Among them, the electrode terminals 222 may be provided in multiple groups, for example, two groups, as required. Accordingly, when any earphone 10 is placed in the charging box 20, the electrode terminals 151 in the earphone 10 may contact the electrode terminals 222 in the charging box 20 one by one to meet the requirements of charging, detection and other functions. Accordingly, the electrode terminals 222 may include a positive power supply terminal and a negative power supply terminal, and may further include a detection terminal; the lines connecting the two of them may form a triangle, such as an equilateral triangle, or may be spaced apart along a straight line, for example, spaced apart from each other and collinear.

[0173] In one embodiment, in combination Figure 7 and Fig.24 The electrode terminal in the charging box 20 is the first electrode terminal (i.e., the electrode terminal 222), and the electrode terminal in the earphone 10 is the second electrode terminal (i.e., the electrode terminal 151). The first electrode terminal is exposed in the contoured groove 211, and when the earphone 10 is accommodated in the contoured groove 211, the second electrode terminal is connected to the first electrode terminal.

[0174] Specifically, in some embodiments, the first electrode terminal can be arranged in the first contoured groove area 2111, and the second electrode terminal can be arranged on the movement module 11. Since the movement module 11 is a hard structure compared to the hook structure 12 and has relatively large rigidity, such a configuration can provide a relatively smooth and stable contact surface for the connection between the first electrode terminal and the second electrode terminal, thereby improving the connection stability between the first electrode terminal and the second electrode terminal. In some embodiments, there may be a magnetic part in the movement module 11 (such as the first magnetic part in the above embodiment), and there may be a magnetic structure in the charging box 20 that cooperates with the magnetic part in the movement module 11. The connection between the first electrode terminal and the second electrode terminal can be more stable under the magnetic cooperation between the magnetic part of the movement module 11 and the magnetic structure in the charging box 20.

[0175] In some embodiments, the hook structure 12 may include an elastic portion and a hard portion connecting the movement module 11 and the elastic portion. The elastic portion may be at least composed of the aforementioned elastic wire 121, and the elastic portion may produce elastic deformation. The hard portion may be the adapter housing 122 and the electrode terminal 151 and the magnet 127 therein. The first electrode terminal is exposed in the second contoured groove area 2112, and the second electrode terminal is arranged on the inner side of the hard portion (when the earphone 10 is accommodated in the contoured groove 211, the hard portion faces the side of the contoured groove 211, see Figure 7 In this way, the second electrode terminal and its related mechanical structure and circuit structure are all arranged in the hook structure 12, simplifying the structure of the movement module 11. The hard part has greater rigidity than the elastic part, and the second electrode terminal is arranged in the hard part to increase the success rate and stability of the connection between the second electrode terminal and the first electrode terminal when the earphone 10 is accommodated in the charging box 20.

[0176] Furthermore, the inner side of the movement module 11 (see Figure 7 IS in the middle) and the medial side of the hard part (see Figure 7MS) are inclined to each other, and by setting the inner side of the movement module 11 and the inner side of the hard part to be inclined to each other, the earphone 10 can be easily adapted to the human ear. Specifically, such a setting enables the movement module 11 to extend into the concha cavity while the hard part can bypass the tragus and connect with the elastic part located on the back side of the ear, thereby reducing the interference between the earphone 10 and the ear and increasing the wearing comfort of the earphone 10. In some embodiments, the contoured groove 211 of the charging box 20 can be configured so that the first contoured groove area 2111 and the second contoured groove area 2112 that accommodate the movement module 11 are inclined to each other to increase the adaptability with the earphone 10. Observing along the thickness direction of the charging box 20, compared with the case where the first profiling groove area 2111 and the second profiling groove area 2112 for accommodating the core module 11 are parallel to each other, by setting the profiling groove 211 to accommodate the first profiling groove area 2111 and the second profiling groove area 2112 for accommodating the core module 11, the area of ​​the hard part is inclined to each other, so that the size of the projection of the charging box 20 in the thickness direction can be reduced, which is convenient for carrying. Compared with the case where the first profiling groove area 2111 and the second profiling groove area 2112 for accommodating the core module 11 are perpendicular to each other, by setting the profiling groove 211 to accommodate the first profiling groove area 2111 and the second profiling groove area 2112 for accommodating the core module 11, the area required in the thickness direction of the charging box 20 when the earphone 10 is stored in the charging box 20 is reduced, and the user's sense of operability when storing the earphone 10 is improved. In summary, by setting the profiling groove 211 so that the first profiling groove area 2111 for accommodating the core module 11 and the second profiling groove area 2112 for accommodating the hard part are inclined to each other, the charging box 20 can be more adapted to the earphone 10. Furthermore, the thickness, length and width of the charging box 20 are optimized, so that the charging box 20 can be convenient for users to carry and meet the ergonomic requirements of the charging box 20.

[0177] In some embodiments, as an example, see Fig.24 The extension direction of the first electrode terminal is inclined relative to the thickness direction of the charging box 20 (refer to Fig.24 β angle in). With such a configuration, on the one hand, the space occupied by the first electrode terminal in the thickness direction of the charging box 20 can be reduced, which is beneficial to reducing the volume of the charging box 20. On the other hand, when the earphone 10 is accommodated in the contoured groove 211, the extension direction of the first electrode terminal can match the extension direction of the second electrode terminal, thereby increasing the success rate of the connection between the first electrode terminal and the second electrode terminal. Optionally, the above-mentioned β angle is between 10 degrees and 45 degrees, for example, between 30 degrees and 40 degrees, and for example, between 15 degrees and 25 degrees, and preferably 20 degrees.

[0178] In some embodiments, the normal direction of the inner side surface IS of the core module 11 and the extension direction of the second electrode terminal are arranged to be inclined with respect to each other, which can facilitate the connection between the first electrode terminal and the second electrode terminal and improve the connection success rate.

[0179] Specifically, when the earphone 10 is placed in the contoured groove 211, the extension direction of the first electrode terminal is inclined relative to the thickness direction of the charging box 20, so that the contact area between the first electrode terminal and the second electrode terminal gradually increases as the earphone 10 is placed, so that the change in the contact area between the first electrode terminal and the second electrode terminal is not an instantaneous change. This is conducive to improving the success rate of the connection between the first electrode terminal and the second electrode terminal and improving the stability of the first electrode terminal and the second electrode terminal after connection.

[0180] In some embodiments, the depth of the first contoured groove area 2111 gradually increases in the direction away from the first electrode terminal. When the earphone 10 is placed in the contoured groove 211, the movement module 11 can cooperate with the depth change area of ​​the first contoured groove area 2111, thereby guiding and positioning the movement module 11, making it easier for the movement module 11 to be placed in the first contoured groove area 2111.

[0181] In some embodiments, the first electrode terminal is exposed at one end of the second profiling groove area 2112 close to the first profiling groove area 2111, and the depth of the area of ​​the second profiling groove area 2112 accommodating the hard part gradually increases in the direction away from the first profiling groove area 2111. In this way, the areas of the first profiling groove area 2111 and the second profiling groove area 2112 accommodating the hard part can form a conical structure with a certain angle in the thickness direction of the charging box 20 that matches the hard part of the earphone 10 and the movement module 11, thereby playing a guiding role, facilitating the earphone 10 to cooperate with the profiling groove 211 when placed in the charging box 20. When the earphone 10 is accommodated in the profiling groove 211, the conical structure can also limit the movement of the earphone 10 relative to the profiling groove 211, thereby improving the stability of the earphone 10 when it is accommodated in the charging box 20.

[0182] In some embodiments, a first supporting platform 2113 is disposed at the bottom of the second contoured groove area 2112, the first electrode terminal is disposed on the first supporting platform 2113, the earphone 10 is disposed with a second supporting platform 176, and the second electrode terminal is disposed on the second supporting platform 176. As an example, Figure 7As shown, the second support platform 176 can be arranged on the hard part of the earphone 10. The second support platform 176 can also be arranged at other positions of the movement module 11 or the hook structure 12, without specific limitation. When the earphone 10 is accommodated in the profiling groove 211, the second support platform 176 abuts against the first support platform 2113. The provision of the first support platform 2113 and the second support platform 176 can increase the structural strength of the earphone 10 at the second electrode terminal and the profiling groove 211 at the first electrode terminal, so as to increase the stability of the connection between the first electrode terminal and the second electrode terminal. At the same time, when the first electrode terminal and the second electrode terminal are connected, the first support platform 2113 and the second support platform 176 can bear more wear, so that during the repeated use of the earphone 10, the wear of the first electrode terminal, the second electrode terminal and other parts is reduced, which is conducive to improving the service life of the earphone 10 and the charging box 20.

[0183] Optionally, the contact surface of the first support platform 2113 and the second support platform 176 is a plane. In some embodiments, the normal direction of the contact surface can be set obliquely relative to the thickness direction of the charging box 20. In this way, after the first support platform 2113 and the second support platform 176 are abutted and matched, the first electrode terminal and the second electrode terminal can also be connected relatively smoothly. And such a setting can gradually increase the contact area between the first support platform 2113 and the second support platform 176 as the earphone 10 is put in, so that the change in the contact area between the first support platform 2113 and the second support platform 176 is not an instantaneous change, which is conducive to improving the stability of the abutment and matching of the first support platform 2113 and the second support platform 176 and improving the success rate of the connection between the first electrode terminal and the second electrode terminal. Optionally, the contact surface of the first support platform 2113 and the second support platform 176 can be inclined to each other with the bottom wall of the second contoured groove area 2112, and the first support platform 2113 and the second support platform 176 can form a step structure, thereby facilitating the abutment and matching of the first support platform 2113 and the second support platform 176.

[0184] In other embodiments, the normal direction of the contact surface of the first supporting platform 2113 and the second supporting platform 176 is parallel to the extension direction of the first electrode terminal. In this way, the contact surface of the first electrode terminal and the second electrode terminal can be parallel to the contact surface of the first supporting platform 2113 and the second supporting platform 176, and the connection between the first electrode terminal and the second electrode terminal is smoother during the process of gradually placing the earphone 10 into the contoured groove 211, reducing the damping feeling during the matching process of the two supporting platforms.

[0185] In other embodiments, the normal direction of the contact surface of the first support platform 2113 and the second support platform 176 is inclined relative to the extension direction of the first electrode terminal. In this way, the contact surface of the first electrode terminal and the second electrode terminal can form a step-like structure relative to the contact surface of the first support platform 2113 and the second support platform 176, thereby playing a role in positioning and limiting during the matching process of the first electrode terminal and the second electrode terminal, which is conducive to improving the stability of the connection between the first electrode terminal and the second electrode terminal.

[0186] As an example, in combination Fig. 20 and Fig. 9 The hook structure 12 may include an elastic part, the elastic part connects the movement module 11 and the battery housing 123, and the elastic part may be the part of the elastic metal wire 121 exposed from the adapter housing 122 and the battery housing 123. The two second contoured groove areas 2112 may be arranged so that the elastic parts of the two earphones 10 overlap each other. In this way, after one of the two earphones 10 is placed in the contoured groove 211 first, the other earphone 10 may also be placed in the contoured groove 211, and the earphone 10 placed first may be deformed to a certain extent, so that the earphone 10 placed later can be better placed in the lower shell assembly 21.

[0187] Further, when observing from directly above the charging box 20, for example, placing the charging box 20 on a table and then looking down, the elastic portion of the hook structure 12 can be arranged in an arc shape, and when the elastic portions of the two earphones 10 overlap each other, two overlapping points are formed (for example Fig. 20 As shown in OP1 and OP2 in the figure, the two profiling grooves 211 can be mirror-symmetrical with the line connecting the two overlapping points (i.e., line segment OP1OP2) as the axis of symmetry, so that the distribution of the two profiling grooves 211 is more reasonable, which is beneficial to improving the appearance quality of the charging box 20.

[0188] In some embodiments, the area between the two overlapping points of the two second contoured groove areas 2112 can retain a portion of the lower shell component 21, that is, the two second contoured groove areas 2112 form an island at their confluence, which is conducive to limiting the freedom of any earphone 10 after being placed in the contoured groove 211. In other words, the two second contoured groove areas 2112 are surrounded by the hook-shaped structure 12 and the area between the two overlapping points forms the above-mentioned island.

[0189] In one embodiment, the two earphones 10 are respectively worn on the left and right ears of the user, and the movement modules 11 of the two earphones 10 are respectively located on both sides of the first reference direction. Arranged in the above manner, when viewed from the first reference direction, that is, the direction when the user opens the charging box 20 from the front, the earphone 10 for wearing on the left ear can be accommodated on the left side relative to the user, and the earphone 10 for wearing on the right ear can be accommodated on the right side relative to the user, so as to facilitate the user to take and store the earphone 10 in the charging box 20. Optionally, the two contoured grooves 211 are mirror-symmetrical with the line connecting the two overlapping points as the symmetry axis. The direction of the line connecting the two overlapping points is parallel to the first reference direction.

[0190] In some embodiments, the two second contoured groove areas 2112 are surrounded by the hook-shaped structure 12 and the area between the two overlapping points is merged into one, that is, the above-mentioned island does not exist, so that the two second contoured groove areas 2112 are integrated at their confluence, which is conducive to the convenient placement of the earphone 10 into the corresponding contoured groove 211.

[0191] As an example, in combination Fig. 20 and Fig. 9 , the hook-shaped structure 12 may include a hard part located between the elastic part and the core module 11, the hard part connects the core module 11 and the elastic part, and the hard part may be the adapter shell 122 and the electrode terminal 151 and the magnet 127 therein. Correspondingly, the lower shell assembly 21 may include a limiting structure 212, and the limiting structure 212 may be arranged in the profiling groove 211 or arranged adjacent to the profiling groove 211. Among them, after any earphone 10 is placed in the profiling groove 211, the limiting structure 212 may form a pressing force on the hard part of the earphone 10 toward the bottom of the profiling groove 211, so as to maintain the relative position between the earphone 10 and the lower shell assembly 21; at least part of the elastic part of the same earphone 10 forms a cantilever structure compared to the point of action of the limiting structure 212 on the hard part, that is, at least part of the elastic part of any earphone 10 may not contact the bottom of the profiling groove 211 (especially the second profiling groove area 2112). In this way, after one of the two earphones 10 is placed into the contoured groove 211 first, the elastic portion of the earphone 10 placed first can be more easily deformed to a certain extent when the other earphone 10 is placed into the contoured groove 211, so that the earphone 10 placed later can be better placed in the lower shell assembly 21.

[0192] In some embodiments, the limiting structure 212 may be a protrusion that interferes with the hard part of the earphone 10 during the process of placing the earphone 10 into or taking it out of the profiling groove 211. The protrusion may be disposed adjacent to the profiling groove 211.

[0193] As an example, the number of the above-mentioned protrusions can be two, and the two protrusions are located on opposite sides of the contoured groove 211. When any earphone 10 is placed in the contoured groove 211, the hard part of the earphone 10 is stuck between the two protrusions under the pressing pressure applied by the user.

[0194] Further, the charging box 20 may include a first magnetic attraction structure 231 and a second magnetic attraction structure 232 disposed in the lower shell assembly 21, and the electrode terminal 222 may be located between the first magnetic attraction structure 231 and the second magnetic attraction structure 232. After any earphone 10 is placed in the contoured groove 211, the first magnetic attraction structure 231 and the first magnetic attraction member in the earphone 10 may form a first magnetic attraction matching pair, and the second magnetic attraction structure 232 and the second magnetic attraction member in the earphone 10 may form a second magnetic attraction matching pair, and the aforementioned first magnetic attraction matching pair and the aforementioned second magnetic attraction matching pair make the electrode terminal 222 contact the electrode terminal 151 one-to-one. In this way, since the electrode terminal 222 and the electrode terminal 151 are located between the first magnetic attraction matching pair and the second magnetic attraction matching pair after pairing, the contact between the earphone 10 and the charging box 20 is better. It is worth noting that: under the action of the limiting structure 212, the contact between the earphone 10 and the charging box 20 can be further guaranteed.

[0195] In some embodiments, the limiting structure 212 may be a limiting groove connected to the contour groove 211, and the hook structure 12 further moves into the limiting groove after any earphone 10 is placed in the contour groove 211, that is, the earphone 10 as a whole has a displacement. The aforementioned limiting groove may be arranged in the contour groove 211.

[0196] As an example, the charging box 20 may include a first magnetic attraction structure 231 disposed in the lower shell component 21. After any earphone 10 is placed in the contoured groove 211, the first magnetic attraction structure 231 forms a first magnetic attraction matching pair with the first magnetic attraction member in the earphone 10, such as two magnets attracting each other with opposite polarities, so as to guide the hook structure of the earphone 10 to move further into the above-mentioned limiting groove. Among them, the bottom of the contoured groove 211 may be provided with a guide surface for guiding the hook structure of the earphone 10 to the above-mentioned limiting groove. For example: the depth of the section of the second contoured groove area 2112 close to the first contoured groove area 2111 is greater than the depth of the first contoured groove area 2111, that is, there is a height difference between the two, and the contoured groove 211 is arranged in a slope transition in the area with the height difference to form the aforementioned guide surface. Correspondingly, the above-mentioned limiting groove may also be located in the section of the second contoured groove area 2112 close to the first contoured groove area 2111.

[0197] Further, the charging box 20 may include a second magnetic attraction structure 232 disposed in the lower shell assembly 21, and the electrode terminal 222 may be located between the first magnetic attraction structure 231 and the second magnetic attraction structure 232. Among them, after any earphone 10 is placed in the contoured groove 211, the second magnetic attraction structure 232 and the second magnetic attraction member in the earphone 10 can form a second magnetic attraction matching pair, for example, two magnets are attracted to each other with opposite sexes, so as to guide the hook structure of the earphone 10 to move further into the above-mentioned limit groove together with the above-mentioned first magnetic attraction matching pair, so that any earphone 10 is placed in the contoured groove 211 and further moves into the above-mentioned limit groove with more power. Similarly, the above-mentioned first magnetic attraction matching pair and the above-mentioned second magnetic attraction matching pair make the electrode terminal 222 contact with the electrode terminal 151 one by one. In this way, since the electrode terminal 222 and the electrode terminal 151 are located between the first magnetic attraction matching pair and the second magnetic attraction matching pair after pairing, the contact between the earphone 10 and the charging box 20 is better. It is worth noting that: under the action of the limiting structure 212, the contact between the earphone 10 and the charging box 20 can be further guaranteed.

[0198] It should be noted that: the first magnetic component may be the speaker 112 in the movement module 11 , specifically, the magnetic circuit system of the speaker 112 ; the second magnetic component may be a magnet 127 arranged on the hard part of the earphone 10 .

[0199] Generally, when the earphone 10 is placed in the charging box 20, if the hook structure 12 is deformed, the success rate of the earphone 10 being placed in the box will be reduced, or the placement stability of the earphone 10 will be affected. For example, the movement module 11 of the earphone 10 can be accommodated in the first profiling groove area 2111, and the hook structure 12 can be accommodated in the second profiling groove area 2112. However, since the hook structure 12 is elastic, during the process of placing the hook structure 12 in the second profiling groove area 2112, the hook structure 12 will be deformed due to the previous use deformation or the action deformation caused by the inertial force, resulting in the hook structure 12 not being able to correspond well to the shape of the second profiling groove area 2112, and the hook structure 12 is not easy to be placed in the profiling groove area 211, and the placement relationship between the movement module 11 and the first profiling groove area 2111 will also be unstable. In order to improve the above technical problems, the following embodiments can be provided.

[0200] In some embodiments, in combination Fig. 20By setting a certain movable gap between the movement module 11 and the side wall of the first contoured groove area 2111, and setting a certain movable gap between the hook structure 12 and the side wall of the second contoured groove area 2112, when the earphone 10 is placed in the contoured groove 211, the contoured groove 211 can provide enough space to allow the hook structure 12 to exist or undergo a certain degree of deformation, so as to ensure that the movement module 11 and the hook structure 12 can be smoothly placed in the first contoured groove area 2111 and the second contoured groove area 2112 respectively with less intervention from the user, thereby improving the success rate of the earphone being put into the box and the placement stability. Furthermore, since one end of the hook structure 12 is connected to the movement module 11 and the other end is cantilevered, the part of the hook structure 12 away from the movement module 11 can be regarded as the far end of the cantilever beam. Considering that in the process of placing the earphone 10 into the contoured groove 211, the part of the hook structure 12 away from the movement module 11 will produce a larger deformation amount than other parts. At the same time, the movement module 11 only requires a smaller active gap than the hook structure 12, so that the movement module 11 can be placed in the first contoured groove area 2111. If the active gap is too large, it will be not conducive to the size optimization of the charging box 20, and will cause the movement module 11 to be unstable in the charging box, which is prone to shaking and abnormal noise.

[0201] In some embodiments, when the earphone 10 is placed in the contoured groove 211, the hook structure 12 is arranged in the extension direction thereof, so that the portion of the hook structure 12 away from the core module 11 and the side wall of the second contoured groove area 2112 are aligned with each other (see FIG. Fig. 20 The movable gap between the side walls 2111c) in the second profiling groove area 2112 is greater than the movable gap between the movement module 11 and the side walls of the first profiling groove area 2111, so that the first profiling groove area 2111 can allow the movement module 11 to be smoothly placed, while the second profiling groove area 2112 can provide a larger movable space for the hook structure 12, further improving the success rate of the earphone 10 into the box and the placement stability, while facilitating the optimization of the size of the charging box 20. Among them, when the hook structure 12 is accommodated in the second profiling groove area 2112, it will still be deformed due to shaking or stress, and the size of the movable gap between the hook structure 12 and the side wall of the second profiling groove area 2112 will change, but this change will not cause the disappearance of the movable gap. Optionally, the size range of the movable gap between the part of the hook structure 12 away from the movement module 11 and the side wall of the second profiling groove area 2112 is 0.5-1.5mm, for example, the size of the movable gap can be 1-1.3mm, specifically 1.2mm. Setting the size of the movable gap in this way can increase the success rate of placing the hook structure 12 into the second contoured groove area 2112 and has a smaller impact on the size of the charging box 20.

[0202] Optionally, the size of the movable gap between the core module 11 and the side wall of the first contoured groove area 2111 is in the range of 0.05-0.2 mm, for example, the size of the movable gap can be 0.07-0.15 mm, specifically 0.1 mm. The movable gap set in this way can enable the core module 11 to be stably accommodated in the first contoured groove area 2111, can position and limit the accommodation of the earphone 10 in the contoured groove 211, and is conducive to improving the stability of the contact of the electrode terminal.

[0203] In some embodiments, the portion of the hook structure 12 away from the movement module 11 includes a battery housing 123 for accommodating a battery. The battery housing 123 is disposed at the portion of the hook structure 12 away from the movement module 11. The hook structure 12 may further include an elastic portion connecting the movement module 11 and the battery housing 123. The battery housing 123 has a larger size than the elastic portion, so that the elastic portion can surround the user's ear to hang the earphone 10, and 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 in the wearing state. Among them, the active gap between the battery housing 123 and the side wall of the second profiling groove area 2112 is greater than the active gap between the movement module 11 and the side wall of the first profiling groove area 2111. In this way, the success rate of placing the battery housing 123 into the second profiling groove area 2112 can be increased, which is convenient for the storage of the earphone 10. Furthermore, when the earphone 10 is accommodated in the contoured groove 211, the movable gap between the elastic part and the side wall of the second contoured groove area 2112 is larger than the movable gap between the movement module 11 and the side wall of the first contoured groove area 2111. This arrangement can increase the success rate of the elastic part being placed in the second contoured groove area 2112, and can facilitate the accommodation of the earphone 10.

[0204] In some embodiments, the hook structure 12 also includes a hard part connecting the elastic part and the movement module 11. Since the hard part can be used to set the electrode terminal 151 or the second magnetic attraction member, it needs to have higher rigidity than the elastic part, and has higher requirements for stability. When the earphone 10 is accommodated in the contoured groove 211, the movable gap between the elastic part and the side wall of the second contoured groove area 2112 can be set to be larger than the movable gap between the hard part and the side wall of the second contoured groove area 2112. In this way, it is convenient to put the elastic part into the second contoured groove area 2112, and the hard part can be more stably accommodated in the second contoured groove area 2112, so that the hard part can cooperate with the movement module 11, increase the stability of the earphone 10 in the contoured groove 211, and help to improve the stability and reliability of the electrode terminal contact or the second magnetic attraction member.

[0205] In some embodiments, the charging box 20 includes at least an electrode terminal for charging, and the electrode terminal may not be arranged on the battery housing 123. It is understandable that the battery housing 123 is at the end of the hook-shaped structure 12, and the deformation degree produced by it is relatively large. The arrangement of the electrode terminal on the battery housing 123 is not conducive to its matching with the electrode terminal in the lower shell assembly 21. Specifically, the electrode terminal may not be arranged on the battery housing 123, but on a structure on the earphone 10 that produces a smaller degree of deformation, such as the movement module 11 or the hard part, which can facilitate the matching between the electrode terminals.

[0206] In some embodiments, in combination Fig.19 , the lower shell component 21 can be provided with a limiting structure, and in the process of placing the earphone 10 into the contoured groove 211, the movement module 11 can be accommodated in the first contoured groove area 2111 through the limiting structure. For example, the limiting structure can be a snap-fit ​​structure, and the movement module 11 can be placed in the first contoured groove area 2111 by snap-fitting with the limiting structure. For another example, the limiting structure can be a magnetic structure, and the movement module 11 can be placed in the first contoured groove area 2111 by magnetically matching with the limiting structure. Specifically, the first contoured groove area 2111 can also be provided with a first magnetic structure 231, and the movement module 11 is provided with a first magnetic member. When the movement module is placed in the first contoured groove area 2111, the first magnetic member and the first magnetic structure 231 are magnetically matched. The situation in which the movement module 11 is placed in the first contoured groove area 2111 by magnetic attraction can be specifically referred to the description of the above embodiment, and will not be repeated here. The movement module 11 can be stably accommodated in the first contoured groove area 2111 in the above manner, which can limit the movement of the earphone 10 in the charging box 20 and improve the matching stability between the electrode terminals.

[0207] As an example, in combination Fig.25 and Fig.26 The charging box 20 also includes an upper shell assembly 24, which cooperates with the lower shell assembly 21 when the charging box 20 is in the closed state. The upper shell assembly 24 is provided with a limiting member 245, which abuts against the hook structure 12 when the charging box 20 is in the closed state. In this way, when the charging box 20 is closed, the limiting member 245 can apply pressure to the hook structure 12, thereby limiting the movement of the hook structure 12 in the thickness direction of the charging box 20. Furthermore, friction will be generated between the limiting member 245 and the hook structure 12, thereby limiting the movement of the hook structure 12 in other directions, so as to reduce the abnormal noise caused by the movement of the hook structure 12, and at the same time reduce the wear of the earphone 10 and the charging box 20.

[0208] The number of the limiting member 245 may be one, or two or more. In some embodiments, the number of the limiting member 245 is one, and the limiting member 245 abuts against the hook structures 12 of the two earphones 10 at the same time when the charging box 20 is closed. In this way, the movement of the two hook structures 12 can be limited by one limiting member 245 at the same time. In some embodiments, the number of the limiting member 245 may be two, and when the charging box 20 is closed, the two limiting members 245 can respectively limit the movement of the hook structures 12 of the two earphones 10.

[0209] In some embodiments, the hook structure 12 includes a battery housing 123 for accommodating a battery, and the limiting member 245 abuts against the battery housing 123 when the charging box 20 is closed. Among them, the battery housing 123 is the larger part of the hook structure 12, and the limiting member 245 can improve the stability of the hook structure 12 when it is accommodated in the charging box 20 by limiting the movement of the battery housing 123. Further, the movement module 11 can be accommodated in the first contoured groove area 2111 by means of snapping or magnetic attraction to limit the freedom of the movement module 11. In this way, when the earphone 10 is accommodated in the contoured groove 211, the freedom of the movement module 11 and the hook structure 12 of the earphone 10 can be limited, thereby greatly limiting the freedom of movement of the earphone 10, preventing the earphone 10 from shaking in the charging box 20, and further avoiding wear of the charging box 20 and the earphone 10, thereby improving the service life.

[0210] In other embodiments, the movable gap between the battery housing 123 and the side wall of the second profiling groove area 2112 is larger than the movable gap between the movement module 11 and the side wall of the first profiling groove area 2111. The beneficial effects produced by such a setting can be found in the description of the aforementioned embodiment and will not be repeated here. The movable gap between the battery housing 123 and the side wall of the second profiling groove area 2112 is larger, and the success rate of placing the earphone 10 into the charging box 20 becomes higher, but it will cause the hook structure 12 to shake more easily. On this basis, further, by setting the limiting member 245 to abut against the battery housing 123 when the charging box 20 is closed, it is possible to reduce the shaking of the hook structure 12 while ensuring that the success rate of placing the earphone 10 is improved.

[0211] Optionally, when the earphone 10 is accommodated in the contoured groove 211 of the charging box 20, the first magnetic attraction member of the core module 11 cooperates with the first magnetic attraction structure of the lower shell assembly 21. In this way, the degree of freedom of the core module 11 can be limited, thereby reducing the shaking of the core module 11. Further, by setting the limiting member 245 to abut the hook structure 12, the shaking of the hook structure 12 can be reduced, thereby reducing the shaking of the earphone 10 as a whole.

[0212] Optionally, the lower shell assembly 21 may include a limiting structure 212, which may be disposed in the profiling groove 211 or adjacent to the profiling groove 211. After any earphone 10 is placed in the profiling groove 211, the limiting structure 212 may form a pressing force on the hard part or the movement module 11 of the earphone 10 toward the bottom of the profiling groove 211, so as to maintain the relative position between the earphone 10 and the lower shell assembly 21, so as to limit the degree of freedom of the earphone 10, so as to reduce the shaking of the earphone 10 in the charging box 20. Further, by the limiting member 245 abutting against the hook structure 12, the shaking of the hook structure 12 can be reduced, thereby further reducing the shaking of the earphone 10.

[0213] In some embodiments, the limiting member 245 may be a flexible structure, for example, the material of the limiting member 245 may be silicone or rubber. The Shore hardness of the limiting member 245 may be in the range of 20-50. With such a configuration, the limiting member 245 can be deformed when abutting against the hook structure 12, which can reduce the wear of the limiting member 245 on the hook structure 12 on the one hand, and make the force applied by the limiting member 245 on the hook structure 12 more uniform on the other hand, so that the limiting member 245 can better fit the shape of the hook structure 12, thereby further limiting the movement of the hook structure 12 in multiple directions, reducing the shaking of the earphone 10 in the contoured groove 211, and reducing abnormal noise caused by movement.

[0214] In other embodiments, the limiting member 245 may include an abutting portion and a telescopic portion, the telescopic portion connecting the abutting portion and the upper shell assembly 24, and when the charging box 20 is closed, the telescopic portion elastically telescopes to make the abutting portion abut against the hook structure 12. In other words, the telescopic portion can provide elastic force when the abutting portion abuts against the hook structure 12, so that the abutting portion can apply pressure to the hook structure 12 to limit the shaking of the hook structure 12. The telescopic portion can specifically be a spring, a torsion spring, or other structures.

[0215] Optionally, the thickness of the limiting member 245 may range from 1.2 to 2 mm. For example, it may be 1.2 mm, 1.5 mm or 2 mm. If the thickness of the limiting member 245 is less than 1.2 mm, the limiting member 245 may not fully interfere with the hook structure 12, and may not generate sufficient pressure to limit the movement of the hook structure 12. If the thickness of the limiting member 245 is greater than 2 mm, the limiting member 245 may generate excessive pressure on the hook structure 12, causing the hook structure 12 to continue to deform when accommodated, thereby causing the hook structure 12 to lose its original shape, affecting the user's wearing experience.

[0216] In some embodiments, the first portion 2112a of the second profiling groove area 2112 is used to accommodate a portion of the hook structure 12 (e.g., the battery housing 123), and when the charging box 20 is closed, the projection of the first portion 2112a of the two second profiling groove areas 2112 in the thickness direction of the charging box 20 at least partially covers the projection of the limiting member 245 in the thickness direction of the charging box 20. Such a configuration enables the limiting member 245 to at least partially abut the hook structure, and the limiting area of ​​the limiting member 245 does not exceed the area where the first portion 2112a of the second profiling groove area 2112 is located, thereby reducing the redundancy that may be generated by the limiting member 245 and reducing costs.

[0217] Furthermore, combined with Fig.26 In some embodiments, the limiting member 245 may be a single arc-shaped structure that abuts against two hook-shaped structures 12 at the same time. The length of the projection of the limiting member 245 in the first reference direction perpendicular to the axis of the rotating shaft mechanism 25 (see Fig.26 The range of L) is 20-24 mm, for example, 21-23 mm or 22-22.5 mm. If the projection length of the limiting member 245 in the first reference direction is less than 20 mm, the contact area between the limiting member 245 and each hook structure 12 will be reduced, and the limiting member 245 may even be unable to abut two hook structures 12 at the same time, causing the limiting member 245 to lose the ability to limit the two hook structures 12 at the same time. If the projection length of the limiting member 245 in the first reference direction is greater than 24 mm, the limiting member 245 will still have redundant length except for the portion abutting against the hook structure 12, and the redundant length will increase the production cost.

[0218] In some embodiments, the length of the projection of the limiting member 245 in a second reference direction perpendicular to the first reference direction (see Fig.26 The range of H) is 3-7 mm. For example, it can be 3-6 mm or 5-6 mm. If the length of the projection of the limiting member 245 in the second reference direction is less than 3 mm, the area where the limiting member 245 contacts the hook structure 12 will be reduced, which will weaken the ability of the limiting member 245 to restrict the movement of the hook structure 12. If the length of the projection of the limiting member 245 in the second reference direction is greater than 7 mm, the area where the limiting member 245 contacts the hook structure 12 is larger, which will excessively increase the pressure applied by the limiting member 245 to the hook structure 12, causing the hook structure 12 to deform unexpectedly.

[0219] In some embodiments, the upper shell component 24 is provided with a receiving groove 244 for receiving the earphone 10 when the charging box 20 is closed. The receiving groove 244 can receive the portion of the earphone 10 that is not received by the contoured groove 211 when the upper shell component 24 is closed to the lower shell component 21, so that the upper shell component 24 and the lower shell component 21 are tightly closed. In addition, when the charging box 20 is in a closed state, the side wall of the receiving groove 244 can also further limit the earphone 10 to limit the movement of the earphone 10 in the charging box 20. Further, the above-mentioned limiting member 245 is provided in the receiving groove 244, and the limiting member 245 cooperates with the receiving groove 244, so that when the earphone 10 is received in the contoured groove 211 and the receiving groove 244 at the same time, the limiting member 245 can apply pressure to the hook structure 12 to limit the movement of the hook structure 12 and reduce the shaking of the hook structure 12 and the generation of abnormal noise.

[0220] Furthermore, combined with Fig. 20 , the second profiling groove areas 2112 of the two profiling grooves 211 are arranged to intersect with each other, so that when the two profiling grooves 211 respectively accommodate the earphones 10, the hook structures 12 of the two earphones 10 overlap with each other, and form a first overlapping point OP1 close to the hinge mechanism 25 and a second overlapping point OP2 away from the hinge mechanism 25. In this way, the hook structures 12 of the two earphones 10 can be placed overlapping, which is conducive to reducing the volume of the charging box 20. Among them, in the direction of the line connecting the first overlapping point OP1 and the second overlapping point OP2, the area where the limiting member 245 abuts against the hook structure 12 is located in the direction where the second overlapping point OP2 deviates from the first overlapping point OP1. The hook structures 12 overlap with each other when accommodated in the profiling grooves 211, and the overlapping part can limit the freedom of movement of part of the hook structure 12. By setting the area where the limiting member 245 abuts against the hook structure 12 on the side of the second overlapping point OP2 away from the first overlapping point OP1, the degree of freedom of the hook structure 12 can be further effectively reduced, thereby further limiting the movement of the hook structure 12. Optionally, when the charging box 20 is closed, the limiting member 245 abuts against the portion corresponding to the second overlapping point OP2 of the hook structure 12. In this way, since the hook structures 12 overlap each other at the second overlapping point OP2, the thicknesses of the two hook structures 12 are superimposed, and the portion corresponding to the second overlapping point OP2 abutted by the limiting member 245 can have a smaller thickness while limiting the degree of freedom of the hook structure 12, thereby reducing production costs.

[0221] Optionally, when the charging box 20 is in the closed state, the distance between the limiting member 245 and the side wall of the upper shell assembly 24 near the second overlapping point OP2 ranges from 15 to 20 mm. In this way, the limiting member 245 can abut against the portion of the hook structure 12 near the second overlapping point OP2. The areas of the two hook structures 12 near the second overlapping point OP2 have overlapping parts, so that this area has a higher height in the thickness direction of the charging box 20, so that the thickness of the limiting member 245 can be reduced. If the distance between the limiting member 245 and the edge of the lower shell assembly 21 near the second overlapping point OP2 is less than 15 mm, the limiting member 245 is far away from the second overlapping point OP2, and the thickness of the limiting member 245 needs to be increased to abut against the hook structure 12. If the distance between the limiting member 245 and the edge of the lower shell assembly 21 near the second overlapping point OP2 is greater than 20 mm, the area of ​​the limiting member 245 abutting against the hook structure 12 will be reduced, resulting in a weakened limiting effect.

[0222] As an example, in combination Fig.21 and Fig. 22 The charging box 20 may include an upper shell assembly 24, and a hinge mechanism 25 connecting the upper shell assembly 24 and the lower shell assembly 21, so that the charging box 20 can be opened or closed. The hinge mechanism 25 may include a lower fixing seat 251 integrally formed with the lower shell assembly 21, an upper fixing seat 252 integrally formed with the upper shell assembly 24, and a rotating shaft 253; the lower fixing seat 251 may extend into the upper shell assembly 24, and then be pivotally connected to the upper fixing seat 252 through the rotating shaft 253. Further, the rotating shaft mechanism 25 may include a reinforcement member 254 connected to the lower fixing seat 251, and the structural strength of the reinforcement member 254 is greater than the structural strength of the lower fixing seat 251; the rotating shaft 253 is further penetrated through the reinforcement member 254 to structurally reinforce the rotating shaft mechanism 25. Among them, the reinforcement 254 and the lower fixing seat 251 can be an integrally formed structural part, for example, integrally formed by a metal insert injection molding process; or they can be two separate structural parts and connected together by one or a combination of methods such as gluing, screwing, and clamping.

[0223] Furthermore, the rotating shaft mechanism 25 may include an elastic member 255, one end of which is connected to the lower shell assembly 21, for example, connected to the lower fixing seat 251, and the other end of the elastic member 255 is connected to the upper shell assembly 24, so as to maintain the opening state or the closing state of the charging box 20. In the process of opening or closing the charging box 20, the elastic member 255 is elastically deformed to provide a certain damping feeling, and of course, this damping feeling can also be partially derived from the friction resistance when the rotating shaft 253 and the structure connected thereto rotate.

[0224] As an example, in combination Fig.21, the elastic member 255 can be configured as a Z-shaped torsion spring, the basic structure of which is well known to those skilled in the art and will not be described in detail here. Among them, one of the lower fixing seat 251 and the upper shell assembly 24 can be provided with a mounting hole 2411, and the other can be provided with a mounting groove 2511. For example: the mounting hole 2411 is provided on the upper shell body 241, and is located between the two upper fixing seats 252 in the extension direction of the rotating shaft 253; the mounting groove 2511 is provided on the lower fixing seat 251, and is located between the two sleeve portions 2542 in the extension direction of the rotating shaft 253. In this way, during the installation of the elastic member 255, one end of the elastic member 255 first extends into the mounting hole 2411 along the axial direction of the mounting hole 2411, and the other end of the elastic member 255 is then embedded in the mounting groove 2511 along a direction perpendicular to the axial direction of the mounting groove 2511, so as to reduce the deformation of the elastic member 255 during the installation process, which is conducive to maintaining the reliability of the elastic member 255. Furthermore, the mounting hole 2411 and the mounting groove 2511 may be respectively arranged as through-hole structures along their respective axial directions.

[0225] As an example, in combination Fig.21 , two upper fixing seats 252 can be arranged at intervals along the extension direction of the rotating shaft 253, and the lower fixing seat 251 can be located between the two upper fixing seats 252 and respectively arranged at intervals from the two upper fixing seats 252 in the extension direction of the rotating shaft 253, which is conducive to supporting the rotating shaft 253. Among them, the reinforcing member 254 can include a connecting portion 2541 connected to the lower fixing seat 251 and two sleeve portions 2542 arranged at intervals along the extension direction of the rotating shaft 253, and the two sleeve portions 2542 can be respectively located in the interval area between the lower fixing seat 251 and the two upper fixing seats 252. Accordingly, the rotating shaft 253 is inserted into the lower fixing seat 251, the two sleeve portions 2542 and the two upper fixing seats 252.

[0226] As an example, in combination Fig. 22 The lower shell assembly 21 may include a lower shell body 213 and a lower shell lining 214 disposed on the inner side of the lower shell body 213. The lower fixing seat 251 and the lower shell body 213 may be integrally formed plastic parts; the reinforcement 254 may be a metal part. Among them, the connecting portion 2541 may be located between the lower shell body 213 and the lower shell lining 214, so that the reinforcement 254 is not exposed at least when the charging box 20 is in a closed state. Correspondingly, the contoured groove 211 and the limiting structure 212 may be disposed on the lower shell lining 214, and the main control circuit board 221 and the electrode terminals 222 thereon, the first magnetic attraction structure 231 and the second magnetic attraction structure 232 may be disposed between the lower shell body 213 and the lower shell lining 214. Furthermore, the upper shell assembly 24 may include an upper shell body 241 and an upper shell liner 242 disposed inside the upper shell body 241 , and the upper fixing seat 252 and the upper shell body 241 may be integrally formed plastic parts.

[0227] Through the above method, compared with the related technology in which the upper shell component 24 is connected to the lower shell component 21 through a metal connector, that is, the upper shell component 24 and the lower shell component 21 cannot be connected together after the metal connector is removed, and the metal connector must be exposed, in the present technical solution, the upper shell component 24 and the lower shell component 21 are still connected together after the reinforcement component 254 is removed, and the reinforcement component 254 may not be exposed, which is beneficial to reduce the cost of the charging box 20 and the consistency of appearance.

[0228] As an example, in combination Figure 28-Figure 31 The charging box 20 may include an upper shell assembly 24, and a hinge mechanism 25 connecting the upper shell assembly 24 and the lower shell assembly 21, so that the charging box 20 can be opened or closed. The charging box 20 further includes a limiting mechanism, which is used to limit the angle at which the upper shell assembly 24 rotates relative to the lower shell assembly 21 when the charging box 20 is in the open state. In other words, the limiting mechanism can limit the further relative rotation of the two when the upper shell assembly 24 rotates to a preset angle relative to the lower shell assembly 21. It should be noted that the angle at which the upper shell assembly 24 is opened relative to the lower shell assembly 21 can be the angle between the lower surface of the lower shell assembly 21 and the upper surface of the upper shell assembly 24 (see Fig. 27 By setting a limiting mechanism, the angle at which the upper shell assembly 24 is opened relative to the lower shell assembly 21 can be limited, thereby reducing the risk of damage to the shell structure of the charging box 20 due to excessive rotation of the upper shell assembly 24 and the wear of the surface of the charging box 20 due to the abutment of the shells.

[0229] In some embodiments, the limiting mechanism is connected to the upper shell assembly 24 and the lower shell assembly 21, respectively, so as to limit the angle at which the upper shell assembly 24 opens relative to the lower shell assembly 21. For example, the limiting mechanism may include two connecting rods, which are hinged to each other and are hinged to the upper shell assembly 24 and the lower shell assembly 21, respectively. When the upper shell assembly 24 rotates to a preset angle relative to the lower shell assembly 21, the two connecting rods are in a straight line, thereby limiting the further rotation of the upper shell assembly 24 relative to the lower shell assembly 21. When the charging box 20 changes from an open state to a closed state, the two connecting rods rotate relative to each other, and the part connected to the upper shell assembly 24 and the part connected to the lower shell assembly 21 are close to each other. In other words, the two connecting rods will limit the rotation of the upper shell assembly 24 relative to the lower shell assembly 21 to the open state, but will not limit the rotation of the two to the closed state.

[0230] In some embodiments, the limiting mechanism includes a first limiting member 271 and a second limiting member 272, wherein the second limiting member 272 is connected to the upper shell assembly 24 and can move with the upper shell assembly 24. The first limiting member 271 is connected to the lower shell assembly 21 and can move with the lower shell assembly 21. The first limiting member 271 and the second limiting member 272 abut against each other when the upper shell assembly 24 rotates to a preset angle relative to the lower shell assembly 21, thereby limiting the further rotation of the upper shell assembly 24 relative to the lower shell assembly 21. Optionally, the preset angle ranges from 90 degrees to 110 degrees. If the preset angle is less than 90 degrees, that is, the angle between the upper shell assembly 24 and the lower shell assembly 21 is an acute angle, the upper shell assembly 24 will have a tendency to reclose under the action of gravity or the elastic member of the rotating shaft mechanism 25, which is not conducive to the user to take and store the earphone 10. In addition, if the preset angle is less than 90 degrees, the user will interfere with the upper shell assembly 24 when taking and storing the earphone 10, affecting the user's use experience. If the preset angle is greater than 110 degrees, the angle at which the upper shell assembly 24 is opened relative to the lower shell assembly 21 is too large, which will increase the strength requirements for the shaft mechanism 25 and the limit mechanism. In addition, if the upper shell assembly 24 is opened at a too large angle relative to the lower shell assembly 21, the length of the charging box 20 when opened will be longer. The length of the charging box 20 when opened refers to the distance between the farthest end of the upper shell assembly 24 from the shaft mechanism and the farthest end of the lower shell assembly 21 from the shaft mechanism. For example, in the extreme condition where the charging box 20 falls or is squeezed, the longer length of the charging box 20 when opened will cause a larger torque on the upper shell assembly 24 and the lower shell assembly 21, and the risk of damage to the charging box 20 will increase.

[0231] In some embodiments, a slot 247 is provided on the edge of the upper shell component 24 close to the lower shell component 21, and the shaft mechanism 25 includes a shaft 253 bridging the two ends of the slot 247, and the upper shell component 24 rotates relative to the lower shell component 21 around the shaft 253. In some embodiments, the above-mentioned preset angle is less than the angle at which the upper shell component 24 is opened relative to the lower shell component 21 when the groove edge of the slot 247 abuts against the outer wall of the lower shell component 21. It can be understood that the slot 247 can facilitate the rotation of the upper shell component 24 relative to the lower shell component 21. When the groove edge of the slot 247 abuts against the outer wall of the lower shell component 21, the rotation of the upper shell component 24 relative to the lower shell component 21 can also be limited. However, due to the material and structure of the upper shell component 24 and the lower shell component 21, the groove edge abutment limiting method has high requirements on the structural strength of the shell of the charging box 20, which increases the cost of process and materials. By adding a limiting mechanism and limiting the opening angle of the upper shell assembly 24 relative to the lower shell assembly 21, the limiting strength can be increased, while the requirements for the structural strength of the charging box can be reduced, thereby reducing costs.

[0232] Furthermore, when the groove edge of the slot 247 abuts against the outer wall of the lower shell component 21, pressure will be applied to the outer wall of the lower shell component 21, causing the outer wall of the lower shell component 21 to be easily indented, affecting the appearance. Moreover, the abutting area where the indentation is generated on the outer wall of the lower shell component 21 will experience stress concentration when subjected to force, and the strength of the lower shell component 21 will be greatly affected. In order to avoid the stress concentration phenomenon in the abutting area, a preset angle can be set that is smaller than the angle at which the upper shell component 24 is opened relative to the lower shell component 21 when the groove edge of the slot 247 abuts against the outer wall of the lower shell component 21, so that when the upper shell component 24 is opened relative to the lower shell component 21 to the preset angle, further rotation will be limited by the limiting mechanism, thereby avoiding the abutment of the groove edge of the slot 247 with the outer wall of the lower shell component 21. For example, when the edge of the groove 247 abuts against the outer wall of the lower shell assembly 21, the upper shell assembly 24 and the lower shell assembly 21 can be opened to an angle of 120 degrees, and the preset angle is 110 degrees. When the upper shell assembly 24 is opened to 110 degrees relative to the lower shell assembly 21, the limiting mechanism limits the further rotation of the upper shell assembly 24, thereby avoiding the abutment of the edge of the groove 247 against the outer wall of the lower shell assembly 21.

[0233] In some embodiments, the rotating shaft mechanism 25 includes a first fixing seat 256 installed on the lower shell assembly 21 and a second fixing seat 257 installed on the upper shell assembly 24, and the rotating shaft 253 is inserted through the first fixing seat 256 and the second fixing seat 257. The provision of the first fixing seat 256 and the second fixing seat 257 can increase the strength of the rotating shaft mechanism 25. The limiting mechanism includes a first limiting member 271 connected to the first fixing seat 256, and a second limiting member 272 connected to the second fixing seat 257. When the upper shell assembly 24 rotates to a preset angle relative to the lower shell assembly 21, the first limiting member 271 and the second limiting member 272 abut against each other, thereby limiting the further rotation of the upper shell assembly 24 relative to the lower shell assembly 21.

[0234] Optionally, combined Fig.28 and Fig.29 , the extension direction of the first limiter 271 and the extension direction of the second limiter 272 are perpendicular to each other. Such an arrangement can increase the success rate of the abutment between the first limiter 271 and the second limiter 272. In some embodiments, the extension direction of one of the first limiter 271 and the second limiter 272 is set along the axial direction of the rotating shaft 253, and the extension direction of the other is set along the radial direction of the rotating shaft 253. In this way, the relative rotation of the first limiter 271 and the second limiter 272 can match the rotation of the upper shell assembly 24 and the lower shell assembly 21 relative to the rotating shaft 253, so that the first limiter 271 and the second limiter 272 can limit the rotation of the upper shell assembly 24 and the lower shell assembly 21 relative to the rotating shaft 253.

[0235] In some embodiments, the first limiter 271 and the first fixing seat 256 are integrally formed metal parts. Or the second limiter 272 and the second fixing seat 257 are integrally formed metal parts. Or the first limiter 271 and the first fixing seat 256 are integrally formed metal parts, and the second limiter 272 and the second fixing seat 257 are integrally formed metal parts. The first fixing seat 256 and the second fixing seat 257 are configured as metal parts so that both have a smaller volume under the premise of having sufficient strength, thereby reducing the space occupied by the charging box 20, which is conducive to reducing the volume of the charging box 20. The first limiter 271 and the first fixing seat 256 are integrally formed or the second limiter 272 and the second fixing seat 257 are integrally formed so that when the first limiter 271 and the second limiter 272 resist the force, their torque is transmitted to the charging box 20 through the first fixing seat 256 or the second fixing seat 257, and the connection structure between the first fixing seat 256 and the second fixing seat 257 and the charging box 20 has a high connection strength. Therefore, the integral formation of the first limiting member 271 and the first fixing seat 256 or the integral formation of the second limiting member 272 and the second fixing seat 257 can increase the stability of the first limiting member 271 and the second limiting member 272 when they are in contact with each other.

[0236] As an example, in combination Figure 30-Figure 32 , one of the first limiting member 271 and the second limiting member 272 is provided with a limiting groove 2721, and the other of the first limiting member 271 and the second limiting member 272 cooperates with the limiting groove 2721 when the charging box 20 is opened to limit the rotation of the upper shell component 24 relative to the lower shell component 21. In some embodiments, the second limiting member 272 can be provided with a limiting groove 2721, and the first limiting member 271 extends into the limiting groove 2721 after the upper shell component 24 is opened to a first angle relative to the lower shell component 21, and the first angle is less than a preset angle. When the upper shell component 24 rotates to a preset angle relative to the lower shell component 21, the first limiting member 271 abuts against the groove wall of the limiting groove 2721. The abutment and cooperation between the first limiting member 271 and the limiting groove 2721 can enable the groove wall of the limiting groove 2721 to limit the first limiting member 271 when the limiting mechanism is subjected to forces in other directions, thereby increasing the strength and reliability of the limiting mechanism. When the charging box 20 rotates from the open state to the closed state, the first limit member 271 can be disengaged from the limit groove 2721, thereby reducing the influence of the limit mechanism on the charging box 20 when it is closed. In other embodiments, the first limit member 271 can be provided with a limit groove 2721, and the second limit member 272 extends into the limit groove 2721 after the upper shell assembly 24 is opened to the first angle relative to the lower shell assembly 21.

[0237] Furthermore, when the charging box 20 is in the open state, the angle between the extension direction of the first limit member 271 and the extension direction of the second limit member 272 is an obtuse angle. Such a configuration enables the second limit member 272 or the first limit member 271 to smoothly extend into and out of the limit slot 2721 even when the length is shorter. If the extension direction of the first limit member 271 and the extension direction of the second limit member 272 are a right angle or an acute angle, the limit slot 2721 needs to be longer in length to ensure that the first limit member 271 or the second limit member 272 can be smoothly disengaged, which increases the overall volume of the hinge mechanism 25 and occupies more space in the charging box 20.

[0238] In some embodiments, the connection and cooperation between the lower shell component 21, the limiting mechanism and the rotating shaft mechanism 25 can refer to the following exemplary description: the lower shell component 21 is provided with two first support parts 215 spaced axially along the rotating shaft 253 and a first reinforcing part 216 located between the two first support parts 215. The first reinforcing part 216 can refer to a reinforcing rib structure or a structure with a thickness thicker than other side walls of the charging box 20. The first reinforcing part 216 can enhance the structural strength of the charging box 20, so that the charging box 20 can stably carry the rotating shaft mechanism 25 and the limiting mechanism. The two first support parts 215 are respectively provided with first embedding grooves 2151, and the first fixing seat 256 includes a first plate-shaped body 2561. The first plate-shaped body 2561 is inserted into the first embedding grooves 2151 of the two first support parts 215 toward the lower edge of the lower shell component 21, and the first plate-shaped body 2561 abuts against the first reinforcing part 216. On the one hand, the first reinforcing portion 216 can improve the structural strength of the lower shell assembly 21 itself, and on the other hand, the first fixing seat 256 can cooperate with the first reinforcing portion 216 to increase the strength of the cooperation between the rotating shaft mechanism 25 and the lower shell assembly 21, so that the rotating shaft mechanism 25 can be easily assembled with the lower shell assembly 21. Optionally, the lower shell assembly 21 includes a lower shell body 213 and a lower shell lining 214, and the first supporting portion 215, the first reinforcing portion 216 and the first fixing seat 256 are arranged between the lower shell body 213 and the lower shell lining 214.

[0239] In some embodiments, the first fixing seat 256 also includes two first extensions 2562, which extend from the first plate-shaped body 2561 toward the first reinforcement portion 216, and the first reinforcement portion 216 is located between the two first extensions 2562. The first extension 2562 protrudes from the upper edge of the first plate-shaped body 2561 and is provided with a first shaft hole for the shaft 253 to pass through. The first stopper 271 is located at one end of the first extension 2562 away from the first plate-shaped body 2561. Such a configuration can increase the stability of the cooperation between the first fixing seat 256 and the first reinforcement portion 216, and make the first stopper 271 and the first fixing seat 256 have sufficient structural strength to increase the stability of the charging box 20 when it is in the open state.

[0240] In some embodiments, the connection and cooperation of the upper shell component 24, the limiting mechanism and the rotating shaft mechanism 25 can refer to the following exemplary description. The interior of the upper shell component 24 is provided with two second support parts 243 spaced along the axial direction of the rotating shaft 253, and the two second support parts 243 are provided with second embedded grooves 2431. The second fixing seat 257 includes a second plate-shaped body 2571 and two second extension parts 2572. The second plate-shaped body 2571 is inserted into the second embedded grooves 2431 of the two second support parts 243 toward the upper edge of the upper shell component. The second extension part 2572 is connected to the second plate-shaped body 2571 and extends in the direction of the slot 247. The second extension part 2572 is provided with a second rotating shaft hole for the rotating shaft 253 to pass through, and the first limiting member 271 is provided on the second extension part 2572. Such a configuration can increase the strength of the rotating shaft mechanism 25 and the upper shell component 24, and the rotating shaft mechanism 25 can be easily assembled with the upper shell component 24.

[0241] Further, the upper shell component 24 is provided with second reinforcing portions 246 at both ends of the slot 247, and the second extension portion 2572 includes a first sub-extension portion 2572a located between the two second reinforcing portions 246 and a second sub-extension portion 2572b connected to the first sub-extension portion 2572a and extending along the axial direction of the rotating shaft 253, and the second sub-extension portion 2572b is further connected to the second reinforcing portion 246. For example, the second sub-extension portion 2572b can be matched with the second reinforcing portion 246 by means of fixing members such as screws or rivets, thereby increasing the strength and stability of the first fixing seat 256 and the upper shell component 24.

[0242] As an example, in combination Fig. 22, the charging box 20 may include a magnetic conductive member 261 disposed in the lower shell component 21, and a permanent magnet 262 disposed in the upper shell component 24. For example: the magnetic conductive member 261 is fixed to the inner side of the lower shell lining 214 away from the upper shell component 24, and the permanent magnet 262 is fixed to the inner side of the upper shell lining 242 away from the lower shell component 21, which is conducive to reducing the distance between the magnetic conductive member 261 and the permanent magnet 262 after the charging box 20 is closed. Among them, a Hall sensor 223 is provided on the main control circuit board 221, that is, the Hall sensor 223 is directly fixed on the main control circuit board 221, and the Hall sensor 223 is arranged adjacent to the magnetic conductive member 261. In this way, when the charging box 20 switches between the open state and the closed state, the permanent magnet 262 magnetizes the magnetic conductive member 261 to different degrees, and the Hall sensor 223 senses the magnetic field of the magnetic conductive member 261 to detect the aforementioned open state or the aforementioned closed state. In other words, in the aforementioned covered state, the magnetic conductive member 261 allows the magnetic field generated by the permanent magnet 262 to converge more toward the Hall sensor 223 , which is beneficial to increase the reliability of the detection of the Hall sensor 223 and reduce the volume of the permanent magnet 262 .

[0243] Through the above method, compared with the related technology in which the Hall sensor 223 is fixed on the inner side of the lower shell lining 214 and connected to the main control circuit board 221 through a wire, this technical solution directly fixes the Hall sensor 223 on the main control circuit board 221, which is beneficial to simplify the routing of the charging box 20.

[0244] As an example, in combination Fig. 22 and Fig.23 , the orthographic projections of each profiling groove 211 and the magnetic conductive member 261 on the main control circuit board 221 can be staggered to allow the magnetic conductive member 261 to be as close to the permanent magnet 262 as possible after the charging box 20 is closed. For example: when viewed from directly above the charging box 20, the magnetic conductive member 261 is located at the first position (e.g. Fig.23 The second position (eg Fig.23 The dashed box P2) and the third position (eg Fig.23 Any one of the ones shown in the dotted box P3).

[0245] As an example, in combination Fig.23 , viewed from directly above the charging box 20, the two contoured grooves 211 can be symmetrical about an axis (e.g. Fig.23The two earphones 10 are mirror-symmetrical (as shown by the midpoint line SA) to allow the two earphones 10 to be neatly placed in the charging box 20. Among them, the magnetic conductive member 261 can be located on the axis of symmetry SA and away from the hinge mechanism 25. In this way, it is beneficial to increase the difference in the magnetic field sensed by the Hall sensor 223 to the magnetic conductive member 261 in the above-mentioned open state and the above-mentioned closed state, thereby increasing the reliability of the detection of the Hall sensor 223. It is worth noting that the axis of symmetry SA can be parallel to the line segment OP1OP2, and the axis of symmetry SA can also coincide with the line segment OP1OP2.

[0246] As an example, in combination Fig. 22 , the positive projections of the magnetic conductive part 261 and the Hall sensor 223 on the main control circuit board 221 can at least partially overlap, which is beneficial to reducing the magnetic gap between the magnetic conductive part 261 and the Hall sensor 223, so that the magnetic field generated by the permanent magnet 262 is more concentrated on the Hall sensor 223, especially in the above-mentioned covered state. Among them, the Hall sensor 223 can be arranged on the side of the main control circuit board 221 facing the magnetic conductive part 261 to reduce the magnetic gap between the magnetic conductive part 261 and the Hall sensor 223; the Hall sensor 223 and the magnetic conductive part 261 can be spaced apart in the normal direction of the main control circuit board 221 to reduce the risk of collision between the magnetic conductive part 261 and the Hall sensor 223, especially under extreme conditions such as the charging box 20 falling.

[0247] As an example, in combination Fig. 22 In the above-mentioned covered state, the positive projections of the permanent magnet 262 and the magnetic conductive part 261 on the main control circuit board 221 can at least partially overlap, which is beneficial to reducing the magnetic gap between the permanent magnet 262 and the magnetic conductive part 261, so that the magnetic field generated by the permanent magnet 262 is more concentrated on the Hall sensor 223, especially in the above-mentioned covered state.

[0248] As an example, in combination Fig.33 ( Fig.332 is a schematic diagram of the cross-sectional structure of the charging box 20 when it is closed. The charging box 20 may include a lower shell component 21, an upper shell component 24, a main control circuit board 221 and a magnetic attraction structure arranged in the lower shell component 21, and an upper shell magnet arranged in the upper shell component 24. The upper shell magnet may be the above-mentioned permanent magnet 262, and a Hall sensor 223 may be arranged in the lower shell component 21, and the Hall sensor 223 may be electrically connected to the main control circuit board 221. The magnetic attraction structure is used to maintain the placement state of the earphone 10 in the charging box 20 in a magnetic attraction manner. On this basis, during the closing process of the upper shell component 24, the Hall sensor 223 can further detect the closing of the upper shell component 24 by detecting the approach of the upper shell magnet, so as to realize the closing detection of the charging box 20. Among them, the type of the Hall sensor 223 can be a unipolar Hall switch triggered by the S pole, or a unipolar Hall switch triggered by the N pole, which is not specifically limited here. The following text application is explained by taking the Hall sensor 223 as an S pole triggered type as an example. When the type of the Hall sensor 223 is an N-pole triggered type, the principle is the same and will not be described in detail. It is understandable that those skilled in the art can adjust the relevant magnetic pole characteristics according to the relevant principles when the Hall sensor 223 is an S-pole triggered type described later, so as to achieve the same or similar technical effects when the type of the Hall sensor 223 is an N-pole triggered type, so the technical solution when the type of the Hall sensor 223 is an N-pole triggered type is also included in the protection scope of this application.

[0249] It should be noted that the Hall sensor 223 has two output states, which can output high level and low level respectively. The Hall sensor 223 has a sensing surface, and the magnetic field is perpendicular to the sensing surface of the Hall sensor 223 at the Hall sensor 223, and the component in the positive direction of the sensing surface will act on the carriers of the Hall sensor 223, causing the carriers to deflect, thereby changing the output state of the Hall sensor 223. The specific principle can at least refer to the prior art and will not be repeated. Taking the Hall sensor 223 as an example of the type of S-pole trigger, in the process of the S-pole of the magnet gradually approaching the Hall sensor 223, the magnetic field generated by the magnet at the Hall sensor 223 perpendicular to the positive direction of the sensing surface of the Hall sensor 223 gradually increases. When it increases to exceed a certain threshold (for example, when the magnetic field strength is 2mT or 3mT), the Hall sensor 223 changes from a high level to a low level.

[0250] In the related art, the charging box 20 also includes an auxiliary magnet that cooperates with the earphone 10 in the magnetic attraction structure or assists in closing the charging box 20. In addition to the magnetic field when the upper shell magnet approaches, the magnetic field of the magnetic attraction structure and auxiliary magnets in the charging box 20 will also have a certain impact on the Hall sensor. Exemplarily, the magnetic attraction structure set in the lower shell component 21 will affect the Hall sensor, but due to its relatively small volume, the impact on the Hall sensor 223 can be ignored. In other words, the magnetic field strength of the magnetic attraction structure acting on the Hall sensor 223 cannot reach the threshold for changing the output state of the Hall sensor 223 (that is, the presence or absence of the magnetic attraction structure will not change the output state of the Hall sensor 223). In this way, the reason for the change in the state of the Hall sensor 223 is mainly due to the proximity of the upper shell magnet. Taking the Hall sensor 223 as an example of the S-pole triggered type, when the volume of the magnetic attraction structure is small, the output state of the Hall sensor 223 will not be changed by the magnetic field of the magnetic attraction structure. When the upper shell assembly 24 is closed, the S pole of the upper shell magnet is close to the Hall sensor 223. The Hall sensor 223 is affected by the magnetic field of the upper shell magnet. The magnetic field strength reaches the threshold value for changing the output state, and its output state changes. For example, the output state of the Hall sensor 223 can be changed from a high level to a low level. The circuit in the main control circuit board can be designed to detect that the charging box 20 is closed when the Hall sensor 223 outputs a low level.

[0251] In some embodiments, since the smaller magnetic structure has a weaker suction force on the earphone 10, it is not conducive to the placement of the earphone 10 in the charging box 20. It is necessary to increase the volume of the magnetic structure to enhance the suction force on the earphone 10, thereby improving the stability of the placement of the earphone 10. For example, the first magnetic structure can use a magnet with a diameter of 8-15mm and a thickness of 2-4mm. However, after the volume of the magnetic structure increases, the effect of the magnetic field generated by the magnetic structure on the Hall sensor 223 cannot be ignored, that is, the magnetic field strength of the magnetic structure at the Hall sensor 223 has reached the threshold value for the Hall sensor 223 to change the output state, resulting in the magnetic field of the magnetic structure being able to change the output state of the Hall sensor 223 when the charging box 20 is not closed. For example, when the upper shell magnet is set with the S pole facing downward, if the magnetic field of the magnetic attraction structure is perpendicular to the sensing surface of the Hall sensor 223 and the component thereof is oriented in the positive direction of the sensing surface and exceeds the threshold of the Hall sensor 223 for changing the output state, when the upper shell magnet approaches the Hall sensor 223, since the components of the upper shell magnet and the magnetic attraction structure at the Hall sensor 223 that are perpendicular to the sensing surface are in the same direction, the magnetic field at the Hall sensor 223 will be enhanced, but the output state of the Hall sensor 223 cannot be changed, resulting in failure of the opening and closing box detection. In order to improve the above technical problems, the present application may provide the following embodiments.

[0252] In some embodiments, the matching relationship among the magnetic attraction structure, the upper shell magnet and the Hall sensor 223 can be set so that when the upper shell component 24 is in an open state relative to the lower shell component 21, the Hall sensor 223 is in a first state under the magnetic field of the magnetic attraction structure, and when the upper shell component 24 is in a closed state relative to the lower shell component 21, the upper shell magnet offsets the magnetic field effect of the magnetic attraction structure on the Hall sensor 223, so that the Hall sensor 223 switches to a second state different from the first state. Among them, the first state refers to one of the states in which the Hall sensor 223 outputs a high level or the Hall sensor 223 outputs a low level, and the second state refers to another state in which the Hall sensor 223 outputs a high level or the Hall sensor 223 outputs a low level that is different from the first state. In other words, by setting the matching relationship among the magnetic attraction structure, the upper shell magnet and the Hall sensor 223, when the charging box 20 is closed, the Hall sensor 223 can change its output state under the action of the upper shell magnet.

[0253] Similarly, the above embodiment is exemplified by taking the unipolar Hall switch triggered by the S pole as an example. The magnetic field of the magnetic attraction structure at the Hall sensor 223 reaches the threshold value of the Hall sensor 223 changing the output state (compared to the state when the Hall sensor 223 is completely unaffected by the magnetic field, that is, the presence or absence of the magnetic attraction structure will affect the output state of the Hall sensor 223). For example, when the magnetic field is greater than 3mT, the Hall sensor 223 is in the first state and outputs a low level. In this case, in order to ensure the effectiveness of the closure detection, when the upper shell component 24 is closed, the upper shell magnet is close to the Hall sensor 223, and the magnetic field at the Hall sensor 223 needs to be changed so that the Hall sensor 223 is in the second state, that is, the output is a high level. In this way, by setting the circuit in the main control circuit board to judge that the charging box 20 is closed when the Hall sensor 223 outputs a high level, effective closure detection can be achieved. Specifically, when the upper shell component 24 is in a closed state relative to the lower shell component 21, the magnetic pole of the magnetic attraction structure facing the upper shell component 24 is opposite to the polarity of the magnetic pole of the upper shell magnet facing the lower shell component 21. For example, the S pole of the magnetic attraction structure faces the upper shell component 24, and the angle between the connection line between the magnetic attraction structure and the Hall sensor 223 and the sensing surface of the Hall sensor 223 is less than 45 degrees. Then, the component of the magnetic attraction structure perpendicular to the sensing surface of the Hall sensor 223 at the Hall sensor 223 faces the positive direction of the sensing surface, which can trigger the Hall sensor 223 to the first state, that is, the low level. The N pole of the upper shell magnet is set toward the lower shell component 21 when the charging box 20 is closed. In this way, when the charging box 20 is closed, the component of the upper shell magnet perpendicular to the sensing surface at the Hall sensor 223 is in the negative direction of the sensing surface. In other words, when the charging box 20 is closed, the magnetic fields of the upper shell magnet and the magnetic attraction structure at the Hall sensor 223 will cancel each other, so that the component of the composite magnetic field of the magnetic attraction structure and the upper shell magnet at the Hall sensor 223 perpendicular to the sensing surface is less than the triggering threshold of the Hall sensor 223, and even the component of the composite magnetic field perpendicular to the sensing surface faces the negative direction of the sensing surface, thereby triggering the Hall sensor 223 to the second state, that is, the high level state. The main control circuit board 221 can detect whether the charging box 20 is closed by detecting the output state of the Hall sensor 223. Through the above method, even if the Hall sensor 223 is interfered by the magnetic attraction structure, the charging box 20 can also successfully realize the closed box detection.

[0254] In some embodiments, the magnetic field distribution of the upper shell magnet at the Hall sensor 223 can be adjusted to match the magnetic field distribution of the magnetic attraction structure at the Hall sensor 223, so that when the upper shell magnet approaches the Hall sensor 223, the direction of the total magnetic field acting on the Hall sensor 223 can be changed. The difference in the magnetic field distribution of the upper shell magnet at the Hall sensor 223 can be reflected by the different physical parameters of the upper shell magnet.

[0255] In some embodiments, the diameter of the upper shell magnet may range from 4 to 6 mm, and the thickness of the upper shell magnet may range from 1 to 8 mm. Fig.34 ( Fig.34 is a schematic diagram of the simulation results of the magnetic field of the Hall sensor 223 at the top cover magnets with different thicknesses). Fig.34 (a) is a schematic diagram of the simulation results of the magnetic field at the Hall sensor 223 when the charging box 20 is in an open state and a closed state respectively when the earphone 10 is not placed. Fig.34 (b) is a schematic diagram of the simulation results of the magnetic field at the Hall sensor 223 when the charging box 20 is in an open state and a closed state when the earphone 10 is placed. Fig.34 The positive and negative values ​​in the middle represent the positive and negative directions of the total magnetic field near the Hall sensor relative to the sensing surface. For example, when the magnetic structure uses a permanent magnet with a diameter of 10mm and a thickness of 2.5mm, and the earphone 10 is not placed in the charging box 20, the magnetic structure will generate a magnetic field with a direction toward the positive direction of the sensing surface of the Hall sensor 223 and a magnetic field strength of 6.5mT at the Hall sensor 223. At this time, the Hall sensor 223 is affected by the magnetic field of the magnetic structure and is in a low-level state. After the upper shell assembly 24 is closed, the upper shell magnet will offset the magnetic field generated by the magnetic structure at the Hall sensor 223, and flip the magnetic field here, so that the direction of the magnetic field at the Hall sensor 223 is toward the negative direction of the sensing surface, and the magnetic field strength becomes 5.1mT. At this time, the Hall sensor 223 is in a high-level state. When the size of the upper cover magnet is different, its influence on the Hall sensor 223 is also different. For example, when the diameter of the upper shell magnet is 5mm, as the thickness of the upper shell magnet increases, the magnetic field strength at the Hall sensor 223 after flipping also gradually increases.

[0256] In some embodiments, the earphone 10 is further provided with a first magnetic member that cooperates with the magnetic structure. The first magnetic member is configured so that when the earphone 10 is accommodated in the charging box 20 and the upper shell component 24 is in an open state, the Hall sensor 223 is in a first state. The first magnetic member is configured so that when the earphone 10 is accommodated in the charging box 20 and the upper shell component 24 is in a closed state, the Hall sensor 223 is in a second state. When the earphone 10 is placed in the charging box 20, the first magnetic member provided in the earphone 10 will also produce an effect on the magnetic field at the Hall sensor 223 that is different from the magnetic structure. The component of the first magnetic member perpendicular to the sensing surface at the Hall sensor 223 may be oriented in the positive direction of the sensing surface or in the negative direction of the sensing surface. However, the first magnetic member is configured to only affect the size of the magnetic field perpendicular to the sensing surface at the Hall sensor 223, and will not affect the direction of the total magnetic field there. In other words, the placement of the earphone 10 will not affect the output state of the Hall sensor 223. For example Fig.34(b) is a schematic diagram of the simulation results when the charging box 20 has the earphone 10. The schematic diagram is made when the magnetic attraction structure adopts a permanent magnet with a diameter of 10 mm and a thickness of 2.5 mm, and the upper shell magnet adopts a permanent magnet with a diameter of 5 mm and a thickness of 2 mm. When there is an earphone 10 in the charging box 20, the magnetic field at the Hall sensor 223 is a magnetic field with a magnetic field direction toward the positive direction of the sensing surface and a magnetic field strength of 7.1 mT. At this time, the Hall sensor 223 outputs a low level. After the upper shell assembly 24 is closed, the upper shell magnet flips the magnetic field at the Hall sensor 223 to a magnetic field with a magnetic field direction toward the negative direction of the sensing surface and a magnetic field strength of 4.5 mT. At this time, the Hall sensor 223 outputs a high level.

[0257] In some embodiments, the earphone 10 further includes a second magnetic member independent of the first magnetic member, and the magnetic structure includes a second magnetic structure that is magnetically matched with the second magnetic member. The first magnetic structure 231 and the first magnetic member in the earphone 10 can form a first magnetic matching pair, and the second magnetic structure 232 and the second magnetic member in the earphone 10 can form a second magnetic matching pair. The aforementioned first magnetic matching pair and the aforementioned second magnetic matching pair make the electrode terminal 222 contact the electrode terminal 151 one-to-one. In this way, since the electrode terminal 222 and the electrode terminal 151 are located between the first magnetic matching pair and the second magnetic matching pair after pairing, the contact between the earphone 10 and the charging box 20 is better. The volume of the second magnetic member and the second magnetic structure is smaller than that of the first magnetic member and the first magnetic structure 231, and the distance from the Hall sensor 223 to the first magnetic structure 231 is smaller than the distance from the Hall sensor 223 to the second magnetic structure. In this way, the influence of the second magnetic structure on the magnetic field at the Hall sensor 223 can be reduced, and the interference with the output state of the Hall sensor 223 can be reduced.

[0258] In some embodiments, a magnetic conductive member 261 is further provided in the lower shell assembly 21, and the magnetic conductive member 261 can change the magnetic field distribution of the upper shell magnet, so as to collect the magnetic field of the upper shell magnet to increase the influence of the upper shell magnet on the Hall sensor 223. When the upper shell assembly 24 is closed, as the upper shell magnet gradually approaches the magnetic conductive member 261, the magnetic field of the upper shell magnet will magnetize the magnetic conductive member 261, and the magnetic conductive member 261 can affect the magnetic field distribution at the Hall sensor 223. The magnetic field generated by the magnetic conductive member 261 is further used to offset the magnetic field effect of the magnetic attraction structure on the Hall sensor 223, so that the Hall sensor 223 is switched to a second state different from the first state. In the process of switching between the open state and the closed state of the charging box 20, the upper shell magnet will magnetize the magnetic conductive member 261 to different degrees, and the Hall sensor 223 senses the magnetic field of the magnetic conductive member 261 to detect the aforementioned open state or the aforementioned closed state. In other words, in the aforementioned closed state, the magnetic conductive member 261 makes the magnetic field generated by the upper shell magnet converge more toward the Hall sensor 223, which is conducive to increasing the reliability of the Hall sensor 223 detection and reducing the volume of the upper shell magnet. In the above manner, compared with the related art in which the Hall sensor 223 is fixed on the inner side of the lower shell lining 214 and connected to the main control circuit board 221 through a wire, this technical solution can directly fix the Hall sensor 223 on the main control circuit board 221, which is conducive to simplifying the routing of the charging box 20.

[0259] In some embodiments, the distance from the Hall sensor 223 to the magnetic conductive member 261 can be set to be smaller than the distance from the Hall sensor 223 to the magnetic attraction structure, so that the magnetic field collected by the magnetic conductive member 261 can be closer to the Hall sensor 223. At the same time, the magnetic conductive member 261 can collect a limited magnetic field of the magnetic attraction structure to enhance the effect of the magnetic field collected by the magnetic conductive member 261 on the Hall sensor 223, while reducing the influence of the magnetic field of the magnetic attraction structure, which is beneficial to the reversal of the magnetic field at the Hall sensor 223.

[0260] In some embodiments, in the thickness direction of the charging box 20, when the upper shell assembly 24 is in a closed state, the orthographic projections of the upper shell magnet and the magnetic conductive member 261 in the thickness direction can be set to at least partially overlap, so that the distance between the upper shell magnet and the magnetic conductive member 261 in the first reference direction or the second reference direction can be adjusted. By shortening the distance between the upper shell magnet and the magnetic conductive member 261 in the first reference direction or the second reference direction, it is beneficial to reduce the magnetic gap between the upper shell magnet and the magnetic conductive member 261, so that the magnetic field generated by the permanent magnet 262 is more concentrated toward the Hall sensor 223, especially in the above-mentioned closed state, so that the upper shell magnet can generate a magnetic field of sufficient strength at the Hall sensor 223 even with a small volume. Optionally, when the upper shell assembly 24 is in a closed state, the centroids of the orthographic projections of the upper shell magnet and the magnetic conductive member 261 in the thickness direction can be set to coincide.

[0261] In some embodiments, when the upper shell assembly 24 is in a closed state, the distance between the upper shell magnet and the magnetic permeable member 261 in the thickness direction can be adjusted by setting the relative position of the magnetic permeable member 261 and the upper shell magnet installed in the charging box 20. Shortening the distance between the upper shell magnet and the magnetic permeable member 261 in the thickness direction is conducive to reducing the magnetic gap between the upper shell magnet and the magnetic permeable member 261, so as to enhance the ability of the magnetic permeable member 261 to collect the magnetic field of the upper shell magnet, so that the magnetic field generated by the permanent magnet 262 is more collected toward the Hall sensor 223. In this way, when the charging box 20 is closed, the upper shell magnet can have a smaller volume while ensuring that the upper shell magnet can change the output state of the Hall sensor 223, thereby reducing the volume of the charging box 20. Optionally, when the upper shell assembly 24 is in a closed state, the distance between the magnetic permeable member 261 and the surface of the upper shell magnet close to each other can be set to be less than or equal to 5mm. Such a configuration can provide a certain gap between the upper shell magnet and the magnetic conductive member, so that the side walls of the upper shell assembly and the side walls of the lower shell assembly (i.e., the aforementioned upper shell lining 242 and lower shell lining 214) can separate and cover the upper shell magnet and the magnetic conductive member 261, so that the two do not need to be exposed between the upper shell assembly 24 and the lower shell assembly 21, and no additional holes are required in the upper shell lining 242 and the lower shell lining 214, which is beneficial to increase the structural strength of the charging box 20 and also makes the charging box 20 more beautiful. In other embodiments, when the upper shell assembly 24 is in a closed state, the end of the magnetic conductive member 261 away from the Hall sensor 223 can be arranged to directly abut against the bottom surface of the upper shell magnet, thereby increasing the magnetization of the magnetic conductive member 261 by the upper shell magnet, so that the magnetic field of the upper shell magnet can be more concentrated on the Hall sensor 223.

[0262] In the thickness direction of the charging box 20, the lower shell component 21 is provided with contoured grooves 211 for accommodating the earphones 10 respectively, and the orthographic projection of the contoured grooves 211 on the main control circuit board 221 is staggered from the orthographic projections of the Hall sensor 223 and the upper shell magnet on the main control circuit board 221. In this way, the Hall sensor 223 can be arranged outside the contoured groove 211, so that the Hall sensor 223 can be closer to the upper shell magnet, which is conducive to the upper shell magnet changing the output state of the Hall sensor 223.

[0263] Optionally, an auxiliary magnet is further provided in the lower shell component 21, and the auxiliary magnet may be, for example, a magnet that assists the magnetic attraction between the upper shell component 24 and the lower shell component 21, or a magnet that assists the earphone 10 in matching with the contoured groove 211. The auxiliary magnet is configured so that when the upper shell component 24 is in an open state, the Hall sensor 223 is in a first state, and the auxiliary magnet is configured so that when the upper shell component 24 is in a closed state, the Hall sensor 223 is in a second state. In other words, the auxiliary magnet will not have an effect on the output state of the Hall sensor 223 that is different from the magnetic attraction structure.

[0264] The above are only some embodiments of the present application, and the protection scope of the present application is not limited thereto. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A charging box for earphones, characterized in that: The earphone includes a movement module and a hook-shaped structure connected to the movement module, the hook-shaped part includes a battery housing and an elastic part connecting the battery housing and the movement module, and the charging box includes a lower shell assembly; the lower shell assembly is provided with a contoured groove for accommodating the earphone, the contoured groove includes a first contoured groove area corresponding to the movement module and a second contoured groove area corresponding to the hook-shaped structure; the second contoured groove area also includes a first part corresponding to the battery housing and a second part corresponding to the elastic part, the lower shell assembly is provided with a limiting structure, the movement module is retained in the first contoured groove area by the limiting structure, and the depth of the first part of the second contoured groove area is greater than the depth of the first contoured groove.

2. The charging box according to claim 1, characterized in that: The limiting structure includes a first magnetic structure, which is arranged on the lower shell component and located below the first contoured groove area. The first magnetic structure is used to form a magnetic pair with the magnetic part on the movement module.

3. The charging box according to claim 2, characterized in that: The magnetic attraction component is the magnetic circuit system of the speaker of the movement module.

4. The charging box according to claim 1, characterized in that: The hook-shaped structure also includes a hard part connecting the movement module and the elastic part, the inner side surface of the movement module and the inner side surface of the hard part are inclined to each other, and the depth of the first profiling groove area gradually increases in the direction away from the area of ​​the second profiling groove area accommodating the hard part.

5. The charging box according to any one of claims 1 to 4, characterized in that: The charging box also includes an upper shell assembly, which realizes opening or closing of the charging box by rotating with the lower shell assembly; the upper shell assembly is provided with a limiting member, which abuts against the battery housing when the charging box is closed.

6. The charging box according to claim 5, characterized in that: The upper shell assembly is provided with a receiving groove for accommodating the earphone when the charging box is closed, and the limiting member is protruded from the bottom wall of the receiving groove.

7. The charging box according to claim 5, characterized in that: The limiting member includes an abutting portion and a telescopic portion, the telescopic portion connects the abutting portion and the upper shell assembly, the abutting portion is used to abut against the battery shell, and the telescopic portion is used to provide elastic force when the abutting portion abuts against the battery shell.

8. The charging box according to any one of claims 1 to 4, characterized in that: The lower shell component includes two contoured grooves, which respectively accommodate two earphones worn on the left and right ears of the user, and the second contoured groove areas of the two contoured grooves are arranged to intersect with each other, so that when the two contoured grooves respectively accommodate the earphones, the elastic parts of the two earphones overlap with each other and form two overlapping points.

9. The charging box according to claim 8, characterized in that: The charging box also includes an upper shell component, and the upper shell component and the lower shell component are rotated around the rotation axis to realize the opening or closing of the charging box; when observed along the thickness direction of the charging box, the projection of the overlapping point of the two overlapping points away from the side of the rotation axis along the second reference direction overlaps with the area of ​​the first profiling groove area accommodating the free end of the movement module, and the first reference direction is perpendicular to the rotation axis of relative rotation of the upper shell component and the lower shell component; A projection of the overlapping point of the two overlapping points closer to the rotation axis along the second reference direction overlaps with the hard portion, wherein the second reference direction is perpendicular to the first reference direction.

10. The charging box according to any one of claims 1 to 4, characterized in that: The movable gap between the battery housing and the side wall of the second contoured groove area is greater than the movable gap between the movement module and the side wall of the first contoured groove area.

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