earphone

Abstract

The application mainly relates to earphones, which comprise a core module and a hook-shaped structure, the hook-shaped structure is connected with the core module, the core module has a connecting end and a free end, the connecting end is connected with the hook-shaped structure; the core module comprises a core shell and a loudspeaker, the loudspeaker is arranged in the core shell, a sound outlet hole is arranged on the core shell, and sound waves generated by the loudspeaker are propagated out through the sound outlet hole; in a wearing state, the core module is located on the front side of an ear, at least part of the hook-shaped structure is located on the rear side of the ear, the free end extends into a concha cavity of the ear, the core module cooperates with the concha cavity to form an auxiliary cavity without blocking an external ear canal, the auxiliary cavity is communicated with the external ear canal, and the sound outlet hole is at least partially located in the auxiliary cavity. In the application, the auxiliary cavity is arranged to converge sound waves, so that the sound waves can be more propagated into the external ear canal, thereby improving the volume and sound quality of sound heard by a user in a near field, and the acoustic effect of the earphones is improved.

Description

[0001] This application is a divisional application of Chinese patent application filed on January 29, 2023, with application number 202320171900.7 and entitled "Housing Assembly and Electronic Device".

[0002] This application claims priority to Chinese Patent Application No. 2022232396286, filed on December 1, 2022, entitled “Housing Assembly and Electronic Device”, the contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the technical field of electronic devices, specifically to headphones. Background Technology

[0004] With the increasing popularity of electronic devices, they have become indispensable social and entertainment tools in people's daily lives, and people's demands for electronic devices are also getting higher and higher. Electronic devices such as headphones and smart glasses are also 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. Utility Model Content

[0005] This application provides an earphone, which includes a mechanism module and a hook-shaped structure. The hook-shaped structure is connected to the mechanism module. The mechanism module has a connecting end and a free end. The connecting end is connected to the hook-shaped structure, and the free end is not connected to the hook-shaped structure. The mechanism module includes a mechanism housing and a speaker. The speaker is disposed within the mechanism housing, and the mechanism housing has a sound outlet. Sound waves generated by the speaker are transmitted through the sound outlet. In the wearing state, the mechanism module is located on the front side of the ear, at least a portion of the hook-shaped structure is located on the back side of the ear, and the free end extends into the concha cavity of the ear. Without blocking the external auditory canal, the mechanism module cooperates with the concha cavity to form an auxiliary cavity. The auxiliary cavity communicates with the external auditory canal, and at least a portion of the sound outlet is located within the auxiliary cavity.

[0006] In some embodiments, in the wearing state, the free end abuts against the concha cavity.

[0007] In some embodiments, the mechanism module has an inner side surface, and the sound outlet is disposed on the inner side surface; in the wearing state, the inner side surface is located on the side of the mechanism module facing the ear, and there is a certain distance between the inner side surface and the concha cavity.

[0008] In some embodiments, the movement module has an inner side, an outer side, and a connecting surface, the connecting surface connecting the inner side and the outer side; in the wearing state, the inner side is located on the side of the movement module facing the ear, the outer side is located on the side of the movement module away from the ear, at least a portion of the connecting surface is located within the concha cavity and forms a first contact area with the front side of the ear region corresponding to the concha cavity, the hook-shaped structure forms a second contact area with the rear side of the ear region, and the second contact area and the first contact area at least partially overlap in the ear thickness direction of the ear region.

[0009] In some embodiments, the mechanism module and the hook-shaped structure are configured to clamp the ear region from both the front and rear sides of the ear region corresponding to the concha cavity. The mechanism module has a length direction, and the connecting end and the free end are arranged opposite to each other along the length direction. On a reference plane perpendicular to the length direction, the orthographic projection of the hook-shaped structure partially overlaps with the orthographic projection of the free end.

[0010] In some embodiments, the movement module has a thickness direction perpendicular to the length direction, and the movement module has an inner side and an outer side, which are disposed opposite to each other along the thickness direction; in the wearing state, the inner side is located on the side of the movement module facing the ear, and the outer side is located on the side of the movement module away from the ear; on the reference plane, the orthographic projection of the hook-shaped structure and the orthographic projection of the free end form an overlapping area, and the overlapping area is located between the inner side and the outer side in the thickness direction.

[0011] In some embodiments, the hook-shaped structure includes an elastic metal wire and a battery housing, the elastic metal wire being connected to the movement module, the battery housing being connected to the end of the elastic metal wire away from the movement module, and the battery housing being provided with a battery coupled to the movement module; on the reference plane, the orthographic projection of the battery housing partially overlaps with the orthographic projection of the free end.

[0012] In some embodiments, the movement module has a length direction, and the connecting end and the free end are arranged opposite to each other along the length direction; when viewed in the wearing state along the direction of the human coronal axis, the connecting end is closer to the top of the head than the free end, and the angle between the movement module in the length direction and the direction of the human sagittal axis is between 15° and 60°.

[0013] In some embodiments, the earphone includes a main control circuit board and a battery, the main control circuit board and the battery being disposed within the housing of the main mechanism, the battery and the speaker being coupled to the main control circuit board respectively, and the battery being closer to the connection end than the speaker.

[0014] In some embodiments, the earphone includes an adjustment mechanism connecting the core module and the hook-shaped structure. The adjustment mechanism is located at the connection end of the core module and is configured to adjust the core module and the concha cavity to form the auxiliary cavity in the wearing state.

[0015] In this application, the auxiliary cavity is designed to concentrate sound waves, allowing more sound waves to propagate 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 beneficial to improving the acoustic performance of the headphones. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front outline of the user's ear as described in this application;

[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of the headphones provided in this application;

[0019] Figure 3 This is a schematic diagram of an embodiment of the headphones provided in this application in a wearing state;

[0020] Figure 4 This is a schematic diagram of the structure of an embodiment of the headphones provided in this application;

[0021] Figure 5 This is a schematic diagram of the structure of an embodiment of the headphones provided in this application;

[0022] Figure 6 This is a comparison diagram of frequency response curves measured at the same listening position when the core module is located at different positions on the ear in one embodiment of the headphones provided in this application.

[0023] Figure 7 yes Figure 2 A schematic cross-sectional view of one embodiment of the earphone along the A1-A1 cutting direction;

[0024] Figure 8 yes Figure 2A schematic cross-sectional view of one embodiment of the earphone along the A2-A2 cutting direction;

[0025] Figure 9 This is a schematic diagram of the structure of an embodiment of the headphones provided in this application;

[0026] Figure 10 This is a schematic diagram of the structure of one embodiment of the movement housing provided in this application;

[0027] Figure 11 This is a schematic diagram of the structure of one embodiment of the movement housing provided in this application;

[0028] Figure 12 This is a schematic diagram of the structure of one embodiment of the bracket provided in this application;

[0029] Figure 13 yes Figure 8 An enlarged structural schematic diagram of an embodiment of the headphone in region B1;

[0030] Figure 14 yes Figure 8 An enlarged structural schematic diagram of an embodiment of the earphone in region B2;

[0031] Figure 15 This is a schematic diagram of an embodiment of the hook-shaped structure provided in this application;

[0032] Figure 16 yes Figure 15 A schematic diagram of the cross-sectional structure of an embodiment of the hook-shaped structure along the A3-A3 cutting direction;

[0033] Figure 17 yes Figure 15 A schematic diagram of the cross-sectional structure of one embodiment of the hook-shaped structure along another cutting direction perpendicular to the A3-A3 cutting direction;

[0034] Figure 18 yes Figure 15 An exploded structural diagram of one embodiment of the hook-shaped structure. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0036] The reference to "embodiment" in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0037] Combination Figure 1 The user's ear 100 may include physiological parts such as the external auditory canal 101, concha 102, cymba conchae 103, triangular fossa 104, antihelix 105, scaphoid fossa 106, helix 107, and antitragus 108. While the external auditory canal 101 has a certain depth and extends to the tympanic membrane of the ear, for ease of description and in conjunction with... Figure 1 Unless otherwise specified, the external auditory canal 101 in this application specifically refers to its entrance (i.e., ear hole) away from the tympanic membrane. Furthermore, physiological sites such as the concha 102, cymba concha 103, and triangular fossa 104 have a certain volume and depth; and the concha 102 is directly connected to the external auditory canal 101, which means that the aforementioned ear hole can be simply regarded as being located at the bottom of the concha 102.

[0038] Furthermore, individual differences may exist among different users, resulting in variations in ear shape, size, and other dimensional differences. To facilitate description and reduce (or even eliminate) these individual differences, a simulator containing a head and its (left and right) ears can be manufactured based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, such as the GRAS 45BC KEMAR. Therefore, in this application, descriptions such as "user wearing headphones," "headphones in wearing state," and "in wearing state" refer to the headphones described in this application being worn on the ears of the aforementioned simulator. Of course, due to individual differences among users, the headphones worn by different users may differ somewhat from those worn on the ears of the aforementioned simulator, but such differences should be tolerable.

[0039] It should be noted that in medicine, anatomy, and other fields, the human body can be defined by three basic planes: the sagittal plane, the coronal plane, and the horizontal plane; and three basic axes: the sagittal axis, the coronal axis, and the vertical axis. The sagittal plane is a section perpendicular to the ground along the anteroposterior direction of the body, dividing the body into left and right parts. The coronal plane is a section perpendicular to the ground along the left-right direction of the body, dividing the body into anterior and posterior parts. The horizontal plane is a section parallel to the ground along the vertical direction of the body, dividing the body into superior and inferior parts. Correspondingly, the sagittal axis is the axis along the anteroposterior direction of the body and perpendicular to the coronal plane; the coronal axis is the axis along the left-right direction of the body and perpendicular to the sagittal plane; and the vertical axis is the axis along the vertical direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear" mentioned in this application is a concept relative to "back side of the ear." The former refers to the side of the ear away from the head, while the latter refers to the side of the ear facing the head; both refer to the user's ear. Specifically, by observing the ear of the simulator along the direction of the human coronal axis, one can obtain... Figure 1 The diagram shows the front outline of the ear.

[0040] As an example, combined Figures 2 to 5 The earphone 10 may include a mechanism module 11 and a hook-shaped structure 12 connected to the mechanism module 11. When worn, the mechanism module 11 is located at the front of the ear, and at least part of the hook-shaped structure 12 is located at the back of the ear, allowing the earphone 10 to hang on the ear. The mechanism module 11 may have a connection end CE connected to the hook-shaped structure 12 and a free end FE not connected to the hook-shaped structure 12. Furthermore, the mechanism module 11 may be configured not to block the ear canal when worn, making the earphone 10 an "open-back" earphone. However, due to individual differences among users, when the earphone 10 is worn by different users, the mechanism module 11 may partially cover the ear canal, but the ear canal will still not be completely blocked.

[0041] To improve the stability of the earphone 10 during wear, the earphone 10 can adopt any one or a combination of the following methods: First, at least a portion of the hook-shaped structure 12 is configured as a contoured structure that conforms to at least one of the back of the ear and the head, thereby increasing the contact area between the hook-shaped structure 12 and the ear and / or the head, thus increasing the resistance to the earphone 10 falling off the ear. Second, at least a portion of the hook-shaped structure 12 is configured as an elastic structure, allowing it to have a certain deformation during wear, thereby increasing the positive pressure of the hook-shaped structure 12 on the ear and / or the head, thus increasing the resistance to the earphone 10 falling off the ear. Third, at least a portion of the hook-shaped structure 12 is configured to rest against the head during wear, creating a reaction force that holds the ear, causing the core module 11 to be held against the front of the ear, thereby increasing the resistance to the earphone 10 falling off the ear. Fourth, the mechanism module 11 and the hook structure 12 are configured to clamp the physiological parts such as the antihelix and conchae from the front and back sides of the ear when worn, thereby increasing the resistance to the earphone 10 falling off the ear. Fifth, the mechanism module 11 or the auxiliary structure connected to it is configured to extend at least partially into the physiological parts such as the conchae, cymba conchae, triangular fossa, and scaphoid fossa, thereby increasing the resistance to the earphone 10 falling off the ear.

[0042] As an example, combined Figure 3 When worn, the free end FE of the mechanism module 11 can extend into the concha cavity. The mechanism module 11 and the hook-shaped structure 12 can be configured to clamp the ear area from both the front and rear sides corresponding to the ear region of the concha cavity, thereby increasing the resistance to the earphone 10 falling off the ear and improving the stability of the earphone 10 when worn. For example, the free end FE presses against the concha cavity in the thickness direction X; or, for another example, the free end FE abuts against the concha cavity in the length direction Y and the width direction Z.

[0043] It should be noted that, when worn, the free end FE of the movement module 11 can not only extend into the concha, but also project onto the antihelix, or onto the left and right sides of the head, positioned in front of the ear on the sagittal axis. In other words, the hook structure 12 can support the movement module 11 when worn in the concha, antihelix, or in front of the ear.

[0044] As an example, combined Figure 3 and Figure 4The mechanism module 11 may have an inner surface IS facing the ear along the thickness direction X and an outer surface OS facing away from the ear when worn, as well as a connecting surface connecting the inner surface IS and the outer surface OS. The thickness direction X can be defined as the direction in which the mechanism module 11 approaches or moves away from the ear when worn. Furthermore, at least a portion of the aforementioned connecting surface is located within the concha cavity when worn, forming a first contact area with the front side of the ear region. The hook-shaped structure 12 forms a second contact area with the rear side of the ear region when worn, and the second contact area and the first contact area at least partially overlap in the ear thickness direction of the ear region. Thus, not only can the mechanism module 11 and the hook-shaped structure 12 clamp the ear from both the front and rear sides, but the clamping force is mainly compressive stress, which helps improve the stability and comfort of the earphone 10 when worn.

[0045] It should be noted that, when worn and viewed along the coronal axis, the movement module 11 can be shaped as a circle, ellipse, rounded square, or rounded rectangle. When the movement module 11 is circular or elliptical, the aforementioned connecting surface can refer to the curved side of the movement module 11; while when the movement module 11 is rounded square or rounded rectangle, the aforementioned connecting surface can include the lower side LS, upper side US, and rear side RS mentioned later. Furthermore, the movement module 11 can have a length direction Y and a width direction Z that are perpendicular to the thickness direction X and orthogonal to each other. The length direction Y can be defined as the direction in which the movement module 11 approaches or moves away from the back of the user's head when worn, and the width direction Z can be defined as the direction in which the movement module 11 approaches or moves away from the top of the user's head when worn. Therefore, for ease of description, this embodiment uses a rounded rectangle shape for the movement module 11 as an example for illustrative purposes. The length of the movement module 11 in the length direction Y can be greater than the width of the movement module 11 in the width direction Z.

[0046] As an example, combined Figure 2 , Figure 3 and Figure 5When worn, and viewed along the coronal axis of the human body, the connecting end CE is closer to the top of the head than the free end FE, allowing the free end FE to extend into the concha. Based on this, the angle between the length direction Y and the direction of the human sagittal axis can be between 15° and 60°. If the angle is too small, the free end FE may not be able to extend into the concha, and the sound outlet 111a on the mechanism module 11 may be too far from the external auditory canal. If the angle is too large, the free end FE may also not be able to extend into the concha, and the external auditory canal may be blocked by the mechanism module 11. In other words, this design allows the free end FE to extend into the concha while maintaining a suitable distance between the sound outlet 111a on the mechanism module 11 and the external auditory canal, so that the user can hear more of the sound waves generated by the mechanism module 11 without blocking the external auditory canal.

[0047] As an example, combined Figure 4 The hook-shaped structure 12 is in a reference plane perpendicular to the length direction Y (e.g. Figure 4 The orthographic projection of the hook structure 12 on the aforementioned reference plane and the orthographic projection of the free end FE on the same reference plane partially overlap. Specifically, the overlapping area formed by the orthographic projection of the hook 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 surface IS and the outer surface OS in the thickness direction X. Thus, not only can the mechanism module 11 and the hook structure 12 clamp the ear from both the front and back sides, but the resulting clamping force is mainly compressive stress, which helps improve the stability and comfort of the earphone 10 when worn.

[0048] Furthermore, combined Figure 2 , Figure 4 , Figure 5 and Figure 9 The hook-shaped structure 12 may include an elastic metal wire 121 connected to the core module 11 and a battery housing 123 connected to one end of the elastic metal wire 121 away from the core module 11. A battery 14 coupled to the core module 11 is disposed within the battery housing 123. The orthographic projection of the battery housing 123 on the aforementioned reference plane partially overlaps with the orthographic projection of the free end FE on the same reference plane. Thus, when the free end FE abuts against the concha cavity, the battery housing 123 can support the ear from the back, which helps improve the stability of the earphone 10 during wear. The battery housing 123 may include a cover 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the cover 1231. The battery compartment 1232 and the cover 1231 cooperate to form a cavity structure for accommodating the battery 14.

[0049] As an example, combined Figure 5The mechanism module 11 may have an upper side US that faces away from the external auditory canal along the width direction Z and a lower side LS that faces the external auditory canal in the wearing state, and a rear side RS that connects the upper side US and the lower side LS. The rear side 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 within the concha. The hook-shaped structure 12 is located in a reference plane perpendicular to the thickness direction X (e.g., ...). Figure 5 The edge of the mechanism module 11, projected onto the YZ plane, can be divided into a first segment S1 and a second segment S2 with a continuous arc transition. The dividing point DP between the first segment S1 and the second segment S2 is the position where the aforementioned edge is furthest from the upper side surface US along the width direction Z. Furthermore, the overall curvature of the hook structure 12 in the first segment S1 is greater than that in the second segment S2. In this way, the free end FE is allowed to extend into the concha cavity, while the hook structure 12 can cooperate with the mechanism module 11 to provide a suitable clamping force.

[0050] It should be noted that the overall curvature described above can be used to qualitatively describe the curvature of different segments of the hook structure 12, where the radius of curvature of each segment can be a constant or continuously varying value. Therefore, at least one point in the first segment S1 has a radius of curvature smaller than the radius of curvature of any point in the second segment S2. Furthermore, the overall curvature described above can also be quantitatively characterized by the average radius of curvature, that is, by first calculating the radius of curvature of N points in each segment and then taking the average value.

[0051] Furthermore, in the extending direction of the hook structure 12, the length of the second segment S2 can be greater than the length of the first segment S1, so that the hook structure 12 and the core module 11 can clamp the ear together, and increase the contact area between the hook structure 12 and the user's skin, which is beneficial to improving the stability of the earphone 10 when worn.

[0052] 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 it intersects with the upper side surface US, and the ending point 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 progressively farther from the starting point of the first reference line segment RL1 in the width direction Z. Furthermore, the length of the first reference line segment RL1 can be between 13mm and 20mm. If the length of the first reference line segment RL1 is too small, the free end FE may not be able to extend into the concha, and the sound outlet 111a on the mechanism module 11 may be too far from the external auditory canal. If the length of the first reference line segment RL1 is too large, the free end FE may also not be able to extend into the concha, and the external auditory canal may be blocked by the mechanism module 11. In other words, this configuration allows the free end FE to extend into the concha cavity while ensuring that the sound outlet 111a on the mechanism module 11 is at a suitable distance from the external auditory canal, so that the user can hear more of the sound waves generated by the mechanism module 11 without the external auditory canal being blocked.

[0053] Furthermore, a second reference line segment RL2, passing through 1 / 4 of the length 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 can be between 9mm and 15mm, and the distance between the second intersection point P2 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm. A third reference line segment RL3, passing through 1 / 2 of the length 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 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 point 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 length 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 the fifth intersection point P5 and the sixth intersection point P6, respectively. The distance between the fifth intersection point P5 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm, and the distance between the sixth intersection point P6 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm. Thus, when the free end FE extends into the concha cavity, and the sound outlet 111a on the mechanism module 11 is at a suitable distance from the external auditory canal, the hook-shaped structure 12 fits the ear better.

[0054] In some embodiments, a fifth reference line segment RL5 with the shortest distance along the length direction Y is provided between the second segment S2 and the rear side RS. The length of the fifth reference line segment RL5 can be between 2mm and 3mm. If the length of the fifth reference line segment RL5 is too small, the clamping force of the mechanism module 11 and the hook structure 12 on the ear may be too large, causing discomfort; if the length of the fifth reference line segment RL5 is too large, the clamping force of the mechanism module 11 and the hook structure 12 on the ear may be too small, causing instability. In other words, this design balances the stability and comfort of the earphone 10 when worn.

[0055] Furthermore, the fifth reference line segment RL5 is defined as follows: the point where the fifth reference line segment RL5 intersects with the rear side RS is taken 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 taken as the ending point of the fifth reference line segment RL5. Specifically, the orthographic projection of the intersection point of the first reference line segment RL1 and the upper side US along the length direction Y intersects the second segment S2 at the seventh intersection point P7. The orthographic projection of the extension of the first reference line segment RL1 and the lower side LS along the length direction Y intersects 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 also be between 5mm and 9mm. This ensures that the hook structure 12 fits the ear better while maintaining the stability and comfort of the earphone 10 during wear.

[0056] As an example, combined Figure 7 , Figure 8 and Figure 5 The mechanism module 11 may include a mechanism housing 111 connected to the hook-shaped structure 12 and a speaker 112 disposed within the mechanism housing 111. The mechanism housing 111, when worn, has a sound outlet 111a on its inner side facing the ear (e.g., the inner side IS mentioned above). Sound waves generated by the speaker 112 propagate through the sound outlet 111a to enter the external auditory canal. It is worth noting that the sound outlet 111a may also be located on the side of the mechanism housing 111 corresponding to the lower side LS, or 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 by the energized voice coil interacts with the magnetic field formed by the magnetic circuit system, thereby driving the diaphragm to produce mechanical vibration, which then generates sound through propagation via a medium such as air.

[0057] Furthermore, combined Figures 7 to 9The earphone 10 may include a main control circuit board 13 disposed within the core housing 111 and a battery 14 disposed at the end of the hook-shaped structure 12 away from the core module 11. The battery 14 and the speaker 112 are respectively coupled to the main control circuit board 13, allowing the battery 14 to supply power to the speaker 112 under the control of the main control circuit board 13. Of course, the battery 14 and the speaker 112 may both be disposed within the core housing 111, with the battery 14 being closer to the connection end CE and the speaker 112 being closer to the free end FE.

[0058] As an example, combined Figure 3 and Figure 1 Because the concha has a certain volume and depth, after the free end FE extends into the concha, there can be a certain distance between the inner surface IS of the mechanism housing 111 and the concha. In other words, when worn, the mechanism module 11 and the concha can cooperate to form an auxiliary cavity communicating with the external auditory canal, and the sound outlet 111a is at least partially located in the aforementioned auxiliary cavity. Thus, when worn, the sound waves generated by the speaker 112 and propagated through the sound outlet 111a are limited by the aforementioned auxiliary cavity, that is, the aforementioned auxiliary cavity can concentrate the sound waves, allowing more sound waves to propagate into the external auditory canal, thereby improving the volume and sound quality of the sound heard by the user in the near field, which is beneficial to improving the acoustic effect of the headphones 10. Furthermore, since the mechanism module 11 can be configured not to block the external auditory canal when worn, the aforementioned auxiliary cavity can be semi-open. Thus, the sound waves generated by the speaker 112 and propagated through the sound outlet 111a, in addition to most of them propagating to the external auditory canal, a small portion propagates to the outside of the earphone 10 and the ear through the gap between the mechanism module 11 and the ear (such as a part of the concha not covered by the mechanism module 11), thereby forming a first sound leakage in the far field; at the same time, the mechanism module 11 generally has an acoustic hole (such as the pressure relief hole 111c mentioned later), and the sound waves propagated through the aforementioned acoustic hole generally form a second sound leakage in the far field, and the phase of the aforementioned first sound leakage and the phase of the aforementioned second sound leakage are (close to) opposite to each other, so that the two can cancel each other out of phase in the far field, which helps to reduce the sound leakage of the earphone 10 in the far field.

[0059] Furthermore, the earphone 10 may include an adjustment mechanism connecting the core module 11 and the hook-shaped structure 12. Different users can adjust the relative position of the core module 11 on the ear through the adjustment mechanism when wearing the earphone, so that the core module 11 is in a suitable position, thereby forming the aforementioned auxiliary cavity with the concha. In addition, due to the existence of the adjustment mechanism, users can also adjust the earphone 10 to a more stable and comfortable position.

[0060] As an example, combined Figure 6First, the earphone 10 is worn on the simulator. Then, the position of the mechanism module 11 on the ear of the simulator is adjusted. Then, the frequency response curve of the earphone 10 is measured by a detector (e.g., a microphone) placed in the ear canal of the simulator (e.g., the location of the eardrum, i.e., the hearing position), thereby simulating the listening effect after the user wears the earphone 10. The aforementioned frequency response curve can be used to characterize the relationship between vibration magnitude and frequency; the horizontal axis of the aforementioned frequency response curve can represent frequency, in Hz; the vertical axis of the aforementioned frequency response curve can represent vibration magnitude, in dB. Figure 6 In the diagram, curve 6_1 represents the frequency response curve when the mechanism module 11 is not forming the aforementioned auxiliary cavity with the concha in the wearing state, and curve 6_2 represents the frequency response curve when the mechanism module 11 is in conjunction with the concha in the wearing state to form the aforementioned auxiliary cavity. Based on this, from... Figure 6 The comparison of the frequency response curves shown directly and without doubt shows that curve 6_2 is generally above curve 6_1. That is, compared to when the core module 11 does not form the aforementioned auxiliary cavity with the concha when worn, when the core module 11 forms the aforementioned auxiliary cavity with the concha when worn, it is more conducive to improving the acoustic effect of the earphone 10.

[0061] As an example, combined Figure 7 , Figure 9 and Figure 11 The mechanism module 11 may include a flexible insert 1131 disposed outside the mechanism housing 111, the hardness of the flexible insert 1131 being less than the hardness of the mechanism housing 111. The mechanism housing 111 may be a plastic part; the flexible insert 1131 may be made of silicone, rubber, etc., and may be formed on a predetermined area of ​​the mechanism housing 111 by injection molding. Furthermore, the flexible insert 1131 may at least partially cover the area of ​​the mechanism housing 111 corresponding to the free end FE, so that the mechanism module 11 at least partially abuts against the concha cavity via the flexible insert 1131. In other words, the portion of the mechanism housing 111 extending into and contacting the concha cavity can be covered by the flexible insert 1131. Thus, when the mechanism module 11 abuts against the concha cavity, for example when the mechanism module 11 and the hook structure 12 are configured to clamp the aforementioned ear area from both the front and rear sides of the ear area corresponding to the concha cavity of the ear, the flexible insert 1131 plays a buffering role between the mechanism housing 111 and the ear (e.g., the aforementioned ear area) to relieve the pressure of the earphone 10 on the ear, which helps to improve the comfort of the earphone 10 when worn.

[0062] As an example, the flexible insert 1131 can continuously cover at least a portion of the areas of the housing 111 corresponding to the rear side RS, upper side US, and lower side LS. For example, the area of ​​the housing 111 corresponding to the rear side RS is covered by the flexible insert 1131 for more than 90%, and the areas of the housing 111 corresponding to the upper side US and lower side LS are each covered by the flexible insert 1131 for approximately 30%. This balances the comfort of the earphone 10 when worn with the need to house structural components such as the speaker 112 within the housing 111.

[0063] In some embodiments, when viewed along the thickness direction X, the flexible insert 1131 may be arranged in a U-shape.

[0064] In some embodiments, the portion of the flexible insert 1131 corresponding to the lower side LS can abut against the tragus. The thickness of the portion of the flexible insert 1131 corresponding to the rear side RS can be less than the thickness of the portions of the flexible insert 1131 corresponding to the upper side US and the lower side LS, respectively, to achieve good comfort even when the mechanism module 11 abuts against an uneven position within the concha cavity.

[0065] As an example, combined Figure 7 and Figure 8 The movement housing 111 may include an inner movement housing 1111 and an outer movement housing 1112 that are interlocked along the thickness direction X. When worn, the inner movement housing 1111 is closer to the ear than the outer movement housing 1112. The parting surface 111b between the outer movement housing 1112 and the inner movement housing 1111 is inclined towards the side containing the inner movement housing 1111 in the direction near the free end FE, so that the flexible insert 1131 can be positioned as far as possible in the region of the outer movement housing 111 corresponding to the free end FE. For example: combined with... Figure 11 The flexible inserts 1131 are all located in the area of ​​the movement housing 111 corresponding to the free end FE, so as to simplify the structure of the movement module 11 and reduce the processing cost.

[0066] As an example, combined Figure 7 , Figure 8 and Figure 11The movement module 11 may include a flexible coating 1132, the hardness of which is less than the hardness of the movement housing 111. The movement housing 111 may be a plastic component; the flexible coating 1132 may be made of silicone, rubber, etc., and may be formed on a predetermined area of ​​the movement housing 111 by injection molding, adhesive bonding, or other methods. Furthermore, the flexible coating 1132 may integrally cover at least a portion of the outer surface of the flexible insert 1131 and at least a portion of the outer surface of the movement housing 1112 not covered by the flexible insert 1131, thus enhancing the uniformity of the movement module 11's appearance. Of course, the flexible coating 1132 may further cover the outer surface of the inner housing 1111. The hardness of the flexible insert 1131 is less than the hardness of the flexible coating 1132 to allow the flexible insert 1131 to be sufficiently flexible. In addition, the flexible coating 1132 can improve the comfort of the earphone 10 when worn, and also 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 mm² and 126 mm². 2 With 189mm 2 Between these two conditions. If the aforementioned area is too small, it may lead to a deterioration in the comfort of the movement module 11 when worn; if the aforementioned area is too large, it may lead to an excessively large volume of the movement module 11, and an excessively large area where the flexible insert 1131 does not abut against the concha, thus deviating from the original intention of setting the flexible insert 1131. Furthermore, the thickness of the flexible covering 1132 is less than the thickness of the movement shell 1112.

[0067] As an example, combined Figure 11 and Figure 9The mechanism module 11 may include metallic functional patterns such as an antenna pattern 1141 and / or a touch pattern 1142 disposed between the mechanism housing 1112 and the flexible cladding 1132. The antenna pattern 1141 can be formed on the outside of the mechanism housing 1112 using laser-direct-structuring (LDS) technology; the touch pattern 1142 can be formed on the outside of the mechanism housing 1112 using LDS technology, or it can be a flexible touch circuit board adhered to the outside of the mechanism housing 1112. Furthermore, the mechanism housing 1112 is provided with metallized holes that connect to the antenna pattern 1141 and the touch pattern 1142 respectively. At this time, since the main control circuit board 13 is located inside the mechanism housing 111, for example, the main control circuit board 13 is connected to the mechanism housing 1112, allowing the main control circuit board 13 to contact the inner wall of the corresponding metallized hole through elastic metal parts such as pogo pins and metal springs. For example, the antenna pattern 1141 and the touch pattern 1142 are respectively connected to the pogo pins 131 and 132 soldered on the main control circuit board 13. Correspondingly, the speaker 112 is located on the side of the main control circuit board 13 away from the mechanism housing 1112. Thus, compared to the antenna pattern 1141 and touch pattern 1142 being respectively located on the inner side of the chassis housing 1112 facing the speaker 112, the antenna pattern 1141 being located on the outer side of the chassis 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 capability of the antenna pattern 1141; the touch pattern 1142 being located on the outer side of the chassis 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 when triggered by the user.

[0068] In some embodiments, the antenna pattern 1141 may surround the touch pattern 1142 to make full use of the space outside the casing 1112. The antenna pattern 1141 may be U-shaped, and the touch pattern 1142 may be square.

[0069] Furthermore, the mechanism module 11 may include a microphone 133 soldered onto the main control circuit board 13. The microphone 133 can pick up user voice and ambient sound through a pickup hole provided on the mechanism housing 1112. When the main control circuit board 13 is connected to the mechanism housing 1112, the microphone 133 can be further pressed onto the mechanism housing 1112.

[0070] As an example, combined Figure 10 and Figure 11The inner housing 1111 may include a bottom wall 1113 and a first side wall 1114 connected to the bottom wall 1113. The outer housing 1112 may include a top wall 1115 and a second side wall 1116 connected to the top wall 1115. The second side wall 1116 and the first side wall 1114 are engaged with each other along the parting surface 111b and can support each other. Viewed along the width direction Z, and with a reference direction pointing from the connecting end CE to the free end FE (e.g., ...). Figure 10 and Figure 11 In the opposite direction of the middle arrow Y, the portion of the first sidewall 1114 near the free end FE gradually approaches the bottom wall 1113 in the thickness direction X, and the portion of the second sidewall 1116 near the free end FE gradually moves away from the top wall 1115 in the thickness direction X, so that the scoring mold surface 111b is inclined towards the side where the inner housing 1111 of the movement is located in the direction near the free end FE. At this time, the flexible insert 1131 is at least partially disposed on the outside of the second sidewall 1116. For example: combined with Figure 11 and Figure 9 The flexible insert 1131 is not only disposed on the outer side of the second sidewall 1116, but also partially disposed on the outer side of the top wall 1115. Correspondingly, the sound outlet 111a can be disposed on the bottom wall 1113. Of course, the sound outlet 111a can also be disposed on the side of the first sidewall 1114 corresponding to the lower side LS, or at the corner between the first sidewall 1114 and the bottom wall 1113. Furthermore, the antenna pattern 1141 and the touch pattern 1142 and their respective metallized holes can be disposed on the top wall 1115, and the microphone 133's pickup hole can also be disposed on the top wall 1115.

[0071] As an example, combined Figure 7 and Figure 11 The movement housing 1112 may be provided with an embedding groove at least partially located on the second sidewall 1116, and the flexible insert 1131 is embedded in the aforementioned embedding groove, so that the outer surface of the area of ​​the movement housing 1112 not covered by the flexible insert 1131 continuously transitions with the outer surface of the flexible insert 1131. Wherein, Figure 7 The area where the 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 accumulate on the movement housing 1112 during the injection molding process, avoiding the flexible insert 1131 from overflowing, but also beneficial to improve the appearance quality of the movement module 11, avoiding pits and bumps on the surface of the movement module 11.

[0072] Furthermore, the second sidewall 1116 may include a first sub-sidewall segment 1117 and a second sub-sidewall segment 1118 connected to the first sub-sidewall segment 1117. The first sub-sidewall segment 1117 is closer to the top wall 1115 in the thickness direction X compared to the second sub-sidewall segment 1118, and the second sub-sidewall segment 1118 protrudes outward toward the outer side of the mechanism housing 111 compared to the first sub-sidewall segment 1117. In short, the second sidewall 1116 may have a stepped structure. This not only facilitates the accumulation of the flexible insert 1131 on the mechanism housing 1112 during injection molding, preventing the flexible insert 1131 from overflowing, but also facilitates the mechanism module 11 to better abut against the concha cavity through the flexible insert 1131, thereby improving the comfort of the earphone 10 when worn.

[0073] Furthermore, the main control circuit board 13 can be connected to the housing 1112, for example, fixed to a thermoplastic pillar connected to the top wall 1115, and can partially overlap with the first sub-side wall segment 1117 in the thickness direction X; the speaker 112 can partially overlap with the second sub-side wall segment 1118 in the thickness direction X. In this way, it is advantageous to set a sufficiently large speaker 112 inside the housing 111, thereby enhancing the sound volume generated by the headphones 10.

[0074] As an example, combined Figure 10 and Figure 8 The housing 111 of the mechanism may be provided with a pressure relief hole 111c. The pressure relief hole 111c allows the space on the side of the speaker 112 facing the main control circuit board 13 to communicate with the external environment, that is, air can freely enter and exit the aforementioned space. This helps to reduce the resistance of the diaphragm of the speaker 112 during vibration. The pressure relief hole 111c can be oriented towards the top of the head when worn, which helps to prevent sound waves propagating through the pressure relief hole 111c from forming sound leakage (i.e., the aforementioned second sound leakage) and being heard. Based on the Helmholtz resonator, the aperture of the pressure relief hole 111c can be as large as possible so that the resonant frequency of the second sound leakage is shifted as high as possible to a higher frequency band (e.g., a frequency range greater than 4kHz), which further helps to prevent the second sound leakage from being heard.

[0075] Furthermore, the housing 111 can be provided with a tuning hole 111d. The tuning hole 111d shifts the resonant frequency of the second leakage sound as high as possible towards a higher frequency band (e.g., a frequency range greater than 4kHz), which helps to further prevent the second leakage sound from being heard. The area of ​​the tuning hole 111d can be smaller than the area of ​​the pressure relief hole 111c, so that more space on the side of the speaker 112 facing the main control circuit board 13 can communicate with the external environment through the pressure relief hole 111c. Furthermore, the distance between the sound outlet hole 111a and the pressure relief hole 111c in the width direction Z is greater than the distance between the sound outlet hole 111a and the tuning hole 111d in the width direction Z, to avoid the sound waves propagating through the sound outlet hole 111a and the pressure relief hole 111c respectively being out of phase and canceling each other out in the near field. This helps to increase the volume of the sound propagating through the sound outlet hole 111a heard by the user. Correspondingly, the tuning hole 111d is closer to the connection end CE than the sound outlet hole 111a, so as to increase the distance between the two in the length direction Y, thereby avoiding the sound waves propagating through the sound outlet hole 111a and the tuning hole 111d respectively from canceling each other in the near field. This is beneficial to increase the volume of the sound propagating through the sound outlet hole 111a heard by the user.

[0076] As an example, combined Figure 10 The sound outlet 111a, pressure relief hole 111c, and sound tuning hole 111d can be disposed on the inner shell 1111 of the movement. For example, the sound outlet 111a can be disposed on the bottom wall 1113, while the pressure relief hole 111c and the sound tuning hole 111d can be disposed on the first side wall 1114. The pressure relief hole 111c and the sound tuning hole 111d can be disposed on opposite sides of the first side wall 1114 along the width direction Z. Thus, since the sound outlet 111a, pressure relief hole 111c, and sound tuning hole 111d are all disposed on the inner shell 1111 of the movement, the structure of the outer shell 1112 of the movement is simplified, which helps to reduce processing costs. Furthermore, since the pressure relief hole 111c and the sound tuning hole 111d are disposed on opposite sides of the first side wall 1114 along the width direction Z, the parting surface 111b can be symmetrically arranged about a reference plane perpendicular to the width direction Z, which helps to improve the appearance quality of the movement module 11.

[0077] As an example, combined Figure 7 and Figure 8The mechanism module 11 may include a bracket 115 disposed within the mechanism housing 111. The bracket 115 and the speaker 112 can enclose an acoustic cavity 116, thereby isolating the acoustic cavity 116 from other structures within the mechanism housing 111 (such as the main control circuit board 13), which is beneficial for improving the acoustic performance of the mechanism module 11. The mechanism housing 111 is provided with acoustic holes, such as at least one of a pressure relief hole 111c and a tuning hole 111d. The bracket 115 is provided with an acoustic channel 1151 connecting the acoustic holes and the acoustic cavity 116, so that the acoustic cavity 116 can communicate with the external environment, that is, air can freely enter and exit the acoustic cavity 116, which helps reduce the resistance of the speaker 112 diaphragm during vibration.

[0078] Furthermore, the bracket 115 and the movement housing 111 cooperate to form at least a portion of the first adhesive groove 1171 surrounding the aforementioned acoustic hole. The first adhesive groove 1171 contains a first adhesive for sealing the assembly gap between the bracket 115 and the movement housing 111, i.e., waterproof sealing is achieved through the first adhesive. This helps to prevent external liquids such as sweat and rain from entering the space where the main control circuit board 13 is located inside the movement housing 111. Thus, based on the Helmholtz resonant cavity, compared to the related technology that uses the bracket 115 to press a silicone sleeve onto the movement housing 111 for waterproof sealing, this technical solution eliminates the need for the aforementioned silicone sleeve in the related technology by using the first adhesive for waterproof sealing. This helps to shorten the length of the part of the acoustic cavity 116 that communicates with the external environment (including the acoustic channel 1151 and the acoustic hole), so that the resonant frequency of the leakage sound (i.e., the aforementioned second leakage sound) formed by propagating through the pressure relief hole 111c is shifted as much as possible to a higher frequency band (e.g., a frequency range greater than 4kHz), thereby further preventing the second leakage sound from being heard.

[0079] It should be noted that: when the aforementioned 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 aforementioned acoustic hole is a sound adjustment hole 111d, the first adhesive groove 1171 surrounds at least a portion of the sound adjustment hole 111d; when the aforementioned acoustic hole is both a pressure relief hole 111c and a sound adjustment hole 111d, the first adhesive groove 1171 surrounds at least a portion of both the pressure relief hole 111c and the sound adjustment hole 111d. For ease of description and in conjunction with... Figure 8 , Figure 10 and Figure 12This application uses the aforementioned acoustic holes as pressure relief hole 111c and sound adjustment hole 111d, with the first adhesive groove 1171 surrounding at least a portion of the pressure relief hole 111c and sound adjustment hole 111d, as an example for illustrative purposes. Further, if the gap between the bracket 115 and the movement housing 111 (e.g., its bottom wall 1113) is sufficiently large, or if the bottom wall 1113 and the first side wall 1114 in the movement housing 111 are not integrally formed structural components (i.e., two separate structural components), then the first adhesive groove 1171 can surround the entire acoustic hole, that is, the first adhesive groove 1171 is a complete annular structure.

[0080] As an example, combined Figure 12 and Figure 10 The bracket 115 may include an annular main body 1152 and a docking portion 1153 connected to the annular main body 1152. The annular main body 1152 is sleeved around the periphery of the speaker 112 to form an acoustic cavity 116, and an acoustic channel 1151 passes 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 mechanism housing 111, and surrounds at least a portion of the aforementioned acoustic hole. The docking portion 1153 and the mechanism housing 111 cooperate to form a first adhesive receiving groove 1171. Since the aforementioned acoustic hole can be a pressure relief hole 111c and a sound tuning hole 111d, two docking portions 1153 are correspondingly provided, and two first adhesive receiving grooves 1171 are also correspondingly provided. Accordingly, the docking portion 1153 cooperates with the first sidewall 1114 to form the first adhesive receiving groove 1171. Thus, since the bracket 115 is arranged in a ring shape, the speaker 112 is exposed on the side facing the main control circuit board 13, which helps to reduce the thickness of the core module 11 in the thickness direction X.

[0081] As an example, combined Figure 10 and Figure 8The inner side of the movement housing 111 may be provided with a recessed area 1119, and the aforementioned acoustic holes may be located at the bottom of the recessed area 1119. The movement module 11 may include an acoustic barrier 118 disposed within the recessed area 1119, and the mating part 1153 presses the acoustic barrier 118 onto the bottom of the recessed area 1119. This not only helps to prevent the bracket 115 from scratching the acoustic barrier 118 during assembly, but also helps to reduce the assembly gap between the bracket 115, the acoustic barrier 118, and the inner housing 1111, and prevents the acoustic barrier 118 from shaking. The acoustic barrier 118 can be pre-fixed to the bottom of the recessed area 1119 using double-sided tape or glue; alternatively, the acoustic barrier 118 can be pre-fixed to a protective steel mesh, which is then pre-fixed to the bottom of the recessed area 1119 using double-sided tape or glue. Accordingly, since the aforementioned acoustic holes can be pressure relief holes 111c and sound adjustment holes 111d, two recessed areas 1119 are provided accordingly, and two acoustic barrier meshes 118 are also provided accordingly.

[0082] Furthermore, the aforementioned first adhesive can be used to seal the assembly gap between the bracket 115 and the acoustic barrier 118 and / or the assembly gap between the acoustic barrier 118 and the movement housing 111 (e.g., the sidewall of the recessed area 1119), which facilitates further waterproof sealing.

[0083] As an example, combined Figure 8 , Figure 10 and Figure 12 The mating portion 1153 can be used to form the bottom wall and one side wall of the first adhesive-containing groove 1171, and the movement housing 111 can be used to form the other side wall of the first adhesive-containing groove 1171. The groove wall on the movement housing 111 is positioned opposite to the groove wall on the mating portion 1153, so that the first adhesive-containing groove 1171 has a certain width and depth. Alternatively, the mating portion 1153 can be used to form one side wall of the first adhesive-containing groove 1171, and the movement housing 111 can be used to form the bottom wall and the other side wall of the first adhesive-containing groove 1171; or, the mating portion 1153 can be used to form a portion of one side wall and the bottom wall of the first adhesive-containing groove 1171, and the movement housing 111 can be used to form another portion of the other side wall and the bottom wall of the first adhesive-containing groove 1171.

[0084] As an example, combined Figures 12 to 14The speaker 112 may include a body 1121 and an annular support 1122 arranged circumferentially along the body 1121. The lower end of the bracket 115 may be supported on the annular support 1122. The acoustic channel 1151 may be open on the side facing the annular support 1122, and the annular support 1122 may further block the open portion of the acoustic channel 1151. In this case, it can be simply regarded as a first adhesive reservoir 1171 surrounding part of the aforementioned acoustic hole, so as to facilitate subsequent filling of adhesive into the first adhesive reservoir 1171 by means of a dispensing process.

[0085] In some embodiments, the annular support 1122 may include a first annular platform 1123 and a second annular platform 1124 arranged in a stepped manner, with the second annular platform 1124 surrounding the periphery of the first annular platform 1123; a portion of the lower end of the bracket 115 may be supported on the first annular platform 1123, and another portion of the lower end of the bracket 115 may form a gap area with the second annular platform 1124, so that the bracket 115, the annular support 1122 and the movement housing 111 cooperate to form a second adhesive groove 1172, which contains a second adhesive for sealing the assembly gap between any two of the bracket 115, the annular support 1122 and the movement housing 111, so as to perform a corresponding waterproof seal.

[0086] 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 adhesive groove 1173. The third adhesive groove 1173 contains a third adhesive for sealing the assembly gap between the bracket 115 and the body 1121 to achieve a corresponding waterproof seal.

[0087] It should be noted that the following process steps may be included in the specific assembly process of the mechanism module 11, and the order of all process steps can be adjusted as needed: 1) Pre-fix the acoustic barrier 118 to the bottom of the recessed area 1119 with double-sided tape; 2) Fix the speaker 112 to the bottom wall 1113, and apply adhesive to the assembly gap between the two, with the corresponding adhesive accumulating on the second annular platform 1124 of the speaker 112; 3) Before the adhesive in step 2) cures, fix the bracket 115 to the speaker 112, wherein the lower end of the bracket 115 supports On the first annular platform 1123 of the speaker 112, glue is also applied between the lower end of the bracket 115 and the second annular platform 1124. The mating part 1153 of the bracket 115 presses the acoustic barrier 118 and cooperates with the first side wall 1114 to form the first glue-receiving groove 1171. The upper end of the bracket 115 is placed on the body 1121 and cooperates with the body 1121 to form the third glue-receiving groove 1173. 4) Apply glue to the assembly gap between the first glue-receiving groove 1171, the third glue-receiving groove 1173 and the lower end of the bracket 115 and the speaker 112 and the inner shell 1111 of the mechanism. Since the assembly gap between the lower end of the bracket 115 and the speaker 112 and the inner shell 1111 of the mechanism is very close to the first adhesive groove 1171, the assembly gap between the lower end of the bracket 115 and the speaker 112 and the inner shell 1111 of the mechanism can be simply regarded as a continuation of the first adhesive groove 1171, that is, the first adhesive groove 1171 and the second adhesive groove 1172 can be connected.

[0088] As an example, combined Figures 15 to 18 and Figure 7 The hook-shaped structure 12 may include a connecting housing 122 connected to the mechanism module 11. The connecting housing 122 may have a pre-formed receiving cavity 124. The earphone 10 may include electronic components 15 subsequently installed in the receiving cavity 124. The connection between the connecting housing 122 and the mechanism module 11 can be one or a combination of assembly methods such as snap-fit, welding, glue connection, threaded connection, and screw connection. Thus, compared to related technologies where the electronic components 15 are located within the mechanism module 11, this technical solution, by installing the electronic components 15 within the pre-formed receiving cavity 124 of the hook-shaped structure 12, not only saves space in the mechanism module 11, making it more compact and smaller in structure, but also simplifies the structure of the mechanism module 11, improving assembly efficiency. It also facilitates the rational layout of the relative positions of the various structural components in the earphone 10, ensuring that both the mechanism module 11 and the hook-shaped structure 12 are fully utilized.

[0089] It should be noted that: the pre-formed accommodating cavity 124 in the adapter housing 122 refers to the cavity 124 being formed simultaneously with the molding of the adapter housing 122, rather than being formed after the adapter housing 122 is molded. For example, if the adapter housing 122 is a plastic housing, the corresponding accommodating cavity 124 can be obtained after the plastic housing is injection molded by setting a corresponding core. Correspondingly, the subsequent installation of the electronic component 15 in the accommodating cavity 124 refers to the electronic component 15 being a non-integral structure of the adapter housing 122. For example, if the adapter housing 122 is a plastic housing, the electronic component 15 is injection molded integrally within the plastic housing without being inserted. Based on this, the descriptions of the adapter housing 122 pre-formed with through holes 1251, blind holes 1252, and through holes 1253 mentioned later are the same or similar, and will not be repeated here. Of course, the accommodating cavity 124 can also be obtained by drilling after the adapter housing 122 is formed. Similarly, through holes 1251, blind holes 1252 and through holes 1253 can also be obtained by drilling after the adapter housing 122 is formed.

[0090] As an example, combined Figure 7 Electronic component 15 can be coupled to main control circuit board 13 to realize electrical connection between hook structure 12 and mechanism module 11. Adapter housing 122 can be inserted and fixed to mechanism housing 111 to realize structural connection between hook structure 12 and mechanism module 11, which is simple and reliable. The aforementioned insertion and fixing can refer to one of the adapter housing 122 and mechanism housing 111 first extending partially into the other along the assembly direction and then being inserted and fixed by means of other limiting structures such as pins, wherein the assembly direction of the aforementioned limiting structure is not parallel to the aforementioned assembly direction; the aforementioned insertion and fixing can also refer to the fact that one of the adapter housing 122 and mechanism housing 111 can be inserted and fixed directly into the other without the aforementioned limiting structure.

[0091] As an example, combined Figure 7 , Figure 10 and Figure 16 The adapter housing 122 may be provided with a first snap-fit ​​structure 1221, and the movement housing 111 may be provided with a second snap-fit ​​structure 1222. The first snap-fit ​​structure 1221 extends into the movement housing 111 and engages with the second snap-fit ​​structure 1222, thereby securing the adapter housing 122 and the movement housing 111 together. This direct insertion and fixation eliminates the need for other limiting structures, making it simple and reliable. The first snap-fit ​​structure 1221 may be integrally formed on the adapter housing 122, and two may be spaced apart relative to each other in the thickness direction X. The second snap-fit ​​structure 1222 may be integrally formed on the inner housing 1111 of the movement, corresponding one-to-one with the first snap-fit ​​structure 1221.

[0092] As an example, combined Figure 7The earphone 10 may include a flexible circuit board 16, which may be at least partially disposed within the accommodating cavity 124 for connection to electronic components 15 and extend into the core housing 111, thereby allowing electronic components 15 to be connected to the main control circuit board 13 via the flexible circuit board 16. For example, electronic components 15 are soldered to one end of the flexible circuit board 16 using surface mount technology (SMT), and the other end of the flexible circuit board 16 is fastened to the main control circuit board 13 via a BTB connector. The speaker 112 may be configured to connect to the flexible circuit board 16 along its extension path; for example, the leads of the speaker 112 may be soldered to a corresponding area of ​​the flexible circuit board 16, thereby allowing the speaker 112 to also be connected to the main control circuit board 13 via the flexible circuit board 16. This eliminates the need for the speaker 112's leads to extend to connect to the main control circuit board 13, simplifying the wiring structure of the earphone 10 and reducing production costs.

[0093] As an example, combined Figure 16 and Figure 15 The adapter housing 122 may have a pre-formed through hole 1251 communicating with the receiving cavity 124. The electronic component 15 may include electrode terminals 151 at least partially disposed within the through hole 1251. The electrode terminals 151 may be stretchable elastic components such as pogo pins or non-stretchable rigid components such as metal pillars. The diameter of the through hole 1251 may be larger than the outer diameter of the electrode terminals 151 to facilitate subsequent installation of the electrode terminals 151. Alternatively, the electrode terminals 151 may be integrally formed with the adapter housing 122 as inserts. Furthermore, the electrode terminals 151 may face the ear when worn, making them invisible during wear, thus improving the appearance of the earphone 10 when worn.

[0094] It should be noted that when the electrode terminal 151 is configured as a retractable elastic component such as a pogo pin, the extension direction of the electrode terminal 151 can be its extension direction; while when the electrode terminal 151 is configured 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.

[0095] Furthermore, multiple electrode terminals 151 can be provided according to actual usage requirements, such as for charging, detection, etc.

[0096] In some embodiments, the electrode terminals 151 may include a positive charging terminal 1511 and a negative charging terminal 1512 spaced apart from each other. The positive charging terminal 1511 and the negative charging terminal 1512 may be respectively disposed in their respective through holes 1251 so that the earphone 10 can be charged through the electrode terminals 151. Of course, the positive charging terminal 1511 and the negative charging terminal 1512 may also be disposed only on the adapter housing 122, and the other may be disposed on another housing such as the battery housing 123 in the hook structure 12 or on the inner housing 1111 of the mechanism.

[0097] In some embodiments, electrode terminal 151 may include detection terminal 1513 spaced apart from charging positive terminal 1511 and charging negative terminal 1512. Detection terminal 1513 can be used for detection functions such as charging detection and detection of earphone 10 being placed in or removed from the charging case. Of course, detection terminal 1513 can also be replaced by electronic components such as Hall sensors.

[0098] In some embodiments, when viewed along the extension direction of the electrode terminal 151, the lines connecting each pair of the charging positive terminal 1511, the charging negative terminal 1512, and the detection terminal 1513 can form a triangle, such as an equilateral triangle.

[0099] In some embodiments, when viewed along the extending direction of the electrode terminals 151, the positive charging terminal 1511, the negative charging terminal 1512, and the detection terminal 1513 can be arranged in a line segment, for example, a straight line segment, spaced apart from each other. 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 may be 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 may be greater than the distance between the negative charging terminal 1512 and the detection terminal 1513; another example is that the detection terminal 1513 may be located between the positive charging terminal 1511 and the negative charging terminal 1512. In this way, when the space for the electrode terminals 151 on the adapter housing 122 is limited, maximizing the distance between the positive charging terminal 1511 and the negative charging terminal 1512 helps to prevent short circuits between them.

[0100] As an example, combined Figure 15The outer side of the adapter housing 122 may be provided with a boss 126, and a through hole 1251 further penetrates the boss 126 so that multiple electrode terminals 151 are exposed at the boss 126. In this way, the boss 126 makes the uneven parts of the adapter housing 122 due to a certain curvature become flat, so as to facilitate the placement of the electrode terminals 151. Among them, the charging positive terminal 1511, the charging negative terminal 1512, and the detection terminal 1513 can be arranged sequentially at intervals along the length direction of the boss 126.

[0101] As an example, combined Figures 15 to 17 The hook-shaped structure 12 may include a magnet 127. The magnet 127 and the electrode terminal 151 may be exposed on the same side of the adapter housing 122, meaning they are both visible on the same surface of the adapter housing 122. This allows the magnet 127 to be closer to the outside of the exposed end of the electrode terminal 151, thereby shortening the distance between the magnet 127 and the magnetic attraction structure in a charging device such as a charging case, or the distance between the magnet 127 and the Hall sensor, which improves the reliability of charging, detection, and other functions. The magnet 127 and the electrode terminal 151 may be arranged adjacent to each other, allowing the magnet 127 to engage with the magnetic attraction structure in the charging device, such as a charging case, and the electrode terminal 151 to engage with the electrode terminal in the charging device for charging. Correspondingly, the boss 126 may protrude from the adapter housing 122 surrounding the magnet 127, meaning the magnet 127 may be lower than the boss 126, allowing the electrode terminal 151 to contact the electrode terminal in the charging device, such as a charging case. Of course, in the embodiment 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 arranged adjacent to the electrode terminal 151. Alternatively, the electrode terminal in the charging device such as a charging box that is used to cooperate with the electrode terminal 151 may be arranged adjacent to the aforementioned Hall sensor. This is beneficial to reduce the area in the charging device such as a charging box used to mount the aforementioned electrode terminal and the aforementioned Hall sensor.

[0102] Furthermore, the hook-shaped structure 12 may include a flexible covering 128, the hardness of which is less than that of the adapter housing 122. The adapter housing 122 may be a plastic component; the flexible covering 128 may be made of silicone, rubber, etc., and may be formed on the adapter housing 122 by injection molding, adhesive bonding, or other methods. Furthermore, the flexible covering 128 may cover both the adapter housing 122 and the magnet 127, making the magnet 127 concealed while the electrode terminal 151 is exposed; that is, the magnet 127 is invisible while the electrode terminal 151 is visible. This satisfies the usage requirements of the electrode terminal 151 while also shielding the magnet 127, preventing it from being exposed and worn or affecting its appearance. In addition, the flexible covering 128 also helps improve the comfort of the earphone 10 when worn. The thickness of the flexible covering 128 is less than the thickness of the adapter housing 122.

[0103] As an example, combined Figure 16 The adapter housing 122 may have a blind hole 1252 that is not connected to the receiving cavity 124, thereby increasing the waterproof and dustproof performance of the receiving cavity 124. The magnet 127 may be disposed at least within the blind hole 1252 and exposed through the opening end of the blind hole 1252. This not only helps to reduce the thickness of the adapter housing 122 in the area where the magnet 127 is located, but also improves 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 a through hole.

[0104] As an example, combined Figure 15 Viewed along the extending direction of the electrode terminals 151, the plurality of electrode terminals 151 can be arranged at intervals to form a line segment, such as a straight line segment or a broken line segment. The magnet 127 can be located on either side of the aforementioned line segment, or the magnet 127 can intersect the aforementioned line segment and be at least partially located between any two adjacent electrode terminals 151. For example: there is one magnet 127, which is entirely located on one side of the aforementioned line segment, or intersects the aforementioned line segment and is entirely located between any two adjacent electrode terminals 151. Another example: there are two magnets 127, one entirely located on one side of the aforementioned line segment, and the other entirely located on the other side of the aforementioned line segment. Yet another example: there is one magnet 127, a portion of which intersects the aforementioned line segment and is located between any two adjacent electrode terminals 151, while the other portion is located below the electrode terminals 151 in the aforementioned extending direction.

[0105] As an example, combined Figure 15The 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. The magnet 127 may be located on one side of the aforementioned straight line segment. Further, viewed along the extending direction of the electrode terminals 151, the center of the magnet 127 has a first distance, a second distance, and a third distance between it and the centers of the charging positive terminal 1511, the charging negative terminal 1512, and the detection terminal 1513, respectively. The third distance is greater than the first and second distances, respectively, to prioritize ensuring charging reliability. It is worth noting that in embodiments where the hook-shaped structure 12 is provided with a flexible coating 128, the flexible coating 128 can be removed first to facilitate determining the relative positional relationship between the magnet 127, the charging positive terminal 1511, the charging negative terminal 1512, and the detection terminal 1513.

[0106] As an example, combined Figures 16 to 18 The electronic component 15 may include an electrode terminal 151 and a microphone 152. The adapter housing 122 may be pre-formed with a cavity 124 and through holes 1251 and 1253 communicating with the cavity 124. Since the electrode terminal 151 and the microphone 152 have different functions, the through holes 1251 and 1253 may be located on different sidewalls of the adapter housing 122. Based on this, the electrode terminal 151 may be at least partially disposed within the through hole 1251, and the microphone 152 may be disposed within the cavity 124, picking up external sound (e.g., user voice, ambient sound) via the through hole 1253. Thus, by rationally arranging the relative positions of the electrode terminal 151 and the microphone 152, the space of the cavity 124 is fully utilized, making the structure of the earphone 10 more compact and smaller. Furthermore, the earphone 10 may include a support assembly 17 at least partially disposed within the accommodating cavity 124. The support assembly 17 can support and fix the electrode terminal 151 and the microphone 152 to the sidewalls corresponding to the through holes 1251 and 1253, respectively. This not only helps to prevent the electrode terminal 151 and the microphone 152 from separating from the adapter housing 122, but also helps to increase the waterproof and dustproof performance of the electronic components 15, and the structure is simple and reliable.

[0107] As an example, combined Figure 18The flexible circuit board 16 may include a first circuit board portion 161, a second circuit board portion 162, and a third circuit board portion 163, all of which are integrally formed. Electrode terminals 151 are soldered to the first circuit board portion 161. The second circuit board portion 162 is bent relative to the first circuit board portion 161. The microphone 152 is soldered to the third circuit board portion 163 and bent relative to the second circuit board portion 162. In other words, after two bends, the first circuit board portion 161, the second circuit board portion 162, and the third circuit board portion 163 correspond to three adjacent sides of a hexagonal structure. Specifically, the end of the second circuit board portion 162 furthest from the third circuit board portion 163 is connected to the first circuit board portion 161, while the other parts are not connected to the first circuit board portion 161. Thus, after the flexible circuit board 16 and its electrode terminals 151 and microphone 152 are assembled in the adapter housing 122, the operator is allowed to press the end of the second circuit board 162 that is connected to the first circuit board 161 to make it as flush as possible with the first circuit board 161, so as to avoid the support component 17 to be assembled later.

[0108] In some embodiments, the adapter housing 122 may include two housings with parting surfaces perpendicular to the extending direction of the electrode terminal 151, the two housings being snapped together to form a receiving cavity 124. The support assembly 17 may be integrally formed with one of the housings to support (or press) the electrode terminal 151 and the microphone 152 respectively when the two housings are snapped together. Alternatively, at least one of the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 may be independent of the adapter housing 122 to support (or press) the electrode terminal 151 and the microphone 152 respectively when the two housings are snapped together, or the support assembly 17 may be assembled after the two housings are snapped together to support (or press) the electrode terminal 151 and the microphone 152 respectively.

[0109] In some embodiments, the adapter housing 122 is at least a complete housing structure corresponding to the portion of the accommodating cavity 124. Specifically, at least the first support member of the support assembly 17, which supports the electrode terminal 151, and the second support member of the support assembly 17, can be independent of the adapter housing 122 to facilitate the assembly of the electrode terminal 151.

[0110] As an example, combined Figure 18 The support assembly 17 can be inserted into the receiving cavity 124 independently of the adapter housing 122. In this way, since the support assembly 17, the electrode terminal 151 and the microphone 152 can be independently of the adapter housing 122, they can be assembled in a certain order, which helps to avoid unnecessary structural interference and makes the assembly more efficient.

[0111] 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 support (or press) the electrode terminal 151 and the microphone 152 respectively. 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.

[0112] In some embodiments, the support assembly 17 can be a one-piece molded structure, meaning that 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. This not only simplifies the structure of the support assembly 17 but also helps avoid the difficulty in assembling the first and second support members due to their small size. The support assembly 17 can be tightly fitted and fixed to the cavity wall of the receiving cavity 124 after being inserted into place, meaning that the support assembly 17 has a certain degree of damping during insertion or removal, resulting in a simple and reliable structure. Correspondingly, the cavity wall of the receiving cavity 124 can be provided with guide grooves and limiting grooves for the support assembly 17 to cooperate with. Of course, the support assembly 17 can also be further bonded to the cavity wall of the receiving cavity 124 using an adhesive dispensing process.

[0113] As an example, combined Figure 17 and Figure 18 At least part of the support assembly 17 and the receiving cavity 124 are perpendicular to the insertion direction of the support assembly 17 relative to the receiving cavity 124 (e.g., Figure 17 and Figure 18 The dimensions of the support assembly 17 in at least one reference direction (in the direction indicated by the middle arrow) can be set to gradually decrease along the aforementioned insertion direction, so as to facilitate the extension of the support assembly 17 into the gap area between the electrode terminal 151 and the microphone 152. In other words, the dimensions of at least a portion of the support assembly 17 in at least one reference direction perpendicular to the aforementioned insertion direction can be set to gradually decrease along the aforementioned insertion direction, and the dimensions of at least a portion of the receiving cavity 124 in the same reference direction can be set to gradually decrease along the aforementioned insertion direction, and the trends of change of the two are the same or similar. This is beneficial for the support assembly 17 to be tightly fitted and fixed to the cavity wall of the receiving cavity 124 after it is inserted into place.

[0114] As an example, combined Figures 16 to 18The cavity walls 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. A through hole 1251 may be provided on the first cavity wall 1241, and a through hole 1253 may be provided on the third cavity wall 1243. Correspondingly, the support assembly 17 may include a base plate 171 and a first side plate 172 connected to the base plate 171, for example, in an L-shaped structure. One main surface of the base plate 171 may be disposed opposite to the first cavity wall 1241 and support the electrode terminal 151; one main surface of the first side plate 172 may be disposed opposite to the third cavity wall 1243 and support the microphone 152. Thus, after the electrode terminal 151 and microphone 152 are assembled in place, the support assembly 17 is inserted into the receiving cavity 124 along the above-mentioned insertion direction. Once inserted in place, the electrode terminal 151 and microphone 152 can be supported by the base plate 171 and the first side plate 172 respectively.

[0115] Furthermore, the orthographic projection of the microphone 152 onto 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 charging positive terminal 1511, which is beneficial for a more compact structure.

[0116] In some embodiments, at least a portion of the base plate 171 and the accommodating cavity 124 may have dimensions in a first reference direction RD1 perpendicular to the insertion direction and parallel to one side of the main surface of the base plate 171, such that the dimensions gradually decrease along the insertion direction. That is, one of the front and rear ends of the base plate 171 in the insertion direction, or a portion between the front and rear ends, may be configured to maintain a constant dimension in the first reference direction RD1 along the insertion direction. Conversely, the dimensions of the first side plate 172 and the accommodating cavity 124 in a second reference direction RD2 perpendicular to the insertion direction and parallel to one side of the main surface of the first side plate 172 may be configured to remain constant along the insertion direction.

[0117] In some embodiments, at least a portion of the first side plate 172 and the accommodating cavity 124 may have dimensions in a second reference direction RD2 perpendicular to the insertion direction and parallel to one side of the main surface of the first side plate 172, such that the dimensions gradually decrease along the insertion direction. That is, one of the front and rear ends of the first side plate 172 in the insertion direction, or a portion between the front and rear ends, may be configured to maintain a constant dimension in the second reference direction RD2 along the insertion direction. Conversely, the dimensions of the base plate 171 and the accommodating cavity 124 in a first reference direction RD1 perpendicular to the insertion direction and parallel to one side of the main surface of the base plate 171 may be set to remain constant along the insertion direction.

[0118] In some embodiments, the dimensions of at least a portion of the first side plate 172 and the receiving cavity 124 in a second reference direction RD2 that is perpendicular to the insertion direction and parallel to one side of the main surface of the first side plate 172 can be set to gradually decrease along the insertion direction.

[0119] It should be noted that, for the support assembly 17, the dimension of the base plate 171 in the first reference direction RD1 can be simply regarded as the width of the base plate 171, and the dimension 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.

[0120] As an example, combined Figures 16 to 18 The support assembly 17 may include a second side plate 173 connected to the base plate 171. The second side plate 173 and the first side plate 172 are arranged side by side and spaced apart on the same side of the base plate 171. The second side plate 173 abuts against the second cavity wall 1242 to provide support force to the base plate 171 toward the electrode terminal 151, which helps to improve the support effect of the support assembly 17 on the electrode terminal 151. In an embodiment where the electrode terminal 151 includes a charging positive terminal 1511 and a charging negative terminal 1512 spaced apart from each other along a direction perpendicular to the insertion direction, the second side plate 173 may be located between the charging positive terminal 1511 and the charging negative terminal 1512 to make the force on each part of the electrode terminal 151 uniform, which helps to further improve the support effect of the support assembly 17 on the electrode terminal 151.

[0121] As an example, combined 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 arranged as parallel planar structures, while the third cavity wall 1243 and the fourth cavity wall 1244 may be generally arranged as outwardly expanding arcuate structures to maximize the volume of the accommodating cavity 124 when the volume of the adapter housing 122 is limited. Correspondingly, the support assembly 17 may include a third side plate 174 connected to the base plate 171. The first side plate 172 and the third side plate 174 are located at the two side edges of the base plate 171 in a direction perpendicular to the 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 support for the first side plate 172 toward the microphone 152, which helps to improve the support effect of the support assembly 17 on the microphone 152.

[0122] Furthermore, relative to the base plate 171, the height of the second side plate 173 can be greater than the height of the first side plate 172 and the third side plate 174, respectively, 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 either the electrode terminal 151 or the microphone 152, they can also be guided during the insertion of the support assembly 17 into the receiving cavity 124. Correspondingly, since the second side plate 173 is relatively the tallest, the support assembly 17 can include reinforcing ribs 175 connecting the second side plate 173 and the base plate 171. The reinforcing ribs 175 can be disposed on opposite sides of the second side plate 173 facing the first side plate 172 and the third side plate 174.

[0123] As an example, combined Figures 15 to 17 and Figure 9 The hook-shaped structure 12 may include an elastic metal wire 121, an adapter housing 122, a battery housing 123, and a wire 129. The two ends of the elastic metal wire 121 and the wire 129 can be connected to the adapter housing 122 and the battery housing 123 respectively, so that the wire 129 extends along the elastic metal wire 121 and passes through the adapter housing 122 and the battery housing 123. Alternatively, the wire 129 can be passed through a pre-defined wiring channel after the elastic metal wire 121 is connected to the adapter housing 122 and the battery housing 123. The battery 14 can be disposed within the battery housing 123 and can be connected to the flexible circuit board 16 via the wire 129, thereby allowing the battery 14 to also be connected to the main control circuit board 13 via the flexible circuit board 16. This simplifies the wiring structure of the earphone 10 and reduces production costs. In other words, components in the hook-shaped structure 12, such as the electrode terminal 151, the microphone 152, and the battery 14, can all be connected to the main control circuit board 13 via the flexible circuit board 16.

[0124] Furthermore, the flexible coating 128 may at least further cover the exposed portions of the elastic metal wire 121 and the wire 129, as well as at least a portion of the battery 123, so that the wire 129 is exposed, which is beneficial to improving the appearance quality of the earphone 10.

[0125] It should be noted that the adapter housing 122 can also be part of the core housing 111. For example, the adapter housing 122 can be integrally formed with the inner core housing 1111, or a portion of the adapter housing 122 can be integrally formed with the inner core housing 1111 while the remaining portion can be integrally formed with the outer core housing 1112. The hook-shaped structure 12, excluding the adapter housing 122, such as the end of the elastic metal wire 121 away from the battery housing 123, or even the battery housing 123, can be fixedly connected to the core module 11 with the adapter housing 122 at the adapter housing 122, for example, by a plug-in connection. Correspondingly, the positions of structural components such as the electrode terminals 151, microphone 152, and magnet 127 are also adjusted accordingly, which will not be described in detail here.

[0126] Based on the foregoing description, this application provides a housing assembly, which may include a plastic housing, a metal functional pattern, and a silicone coating. The metal functional pattern is disposed on the outer side of the plastic housing. The silicone coating can be applied to the side of the plastic housing opposite to the metal functional pattern and the plastic housing not covered by the metal functional pattern through integral injection molding, adhesive bonding, or other methods. Thus, compared to the metal functional pattern being disposed on the inner side of the plastic housing opposite to the silicone coating, the metal functional pattern being disposed on the outer side of the plastic housing facing the silicone coating makes it further away from interference from other electronic components within the housing assembly, or closer to signal triggering sources outside the housing assembly, thereby increasing the anti-interference and sensitivity of the metal functional pattern. The structure of the plastic housing may be the same as or similar to that of the movement housing 111 or its outer casing 1112, and the structure of the silicone coating may be the same as or similar to that of the flexible coating 1132, which will not be described further here.

[0127] In some embodiments, the metallic functional pattern can be configured as an antenna pattern 1141 or a touch pattern 1142. The antenna pattern 1141 is disposed on the outside of the plastic housing, which increases the distance between it and other electronic components within the plastic housing, thus increasing the antenna clearance area and thereby enhancing the anti-interference capability of the antenna pattern 1141. The touch pattern 1142 is disposed on the outside of the plastic housing, which shortens the distance between it and external signal triggering sources (such as a user's finger), thus reducing the touch distance and increasing the sensitivity of the touch pattern 1142 when triggered by the user.

[0128] In some embodiments, the metallic functional pattern may include an antenna pattern 1141 and a touch pattern 1142. The antenna pattern 1141 may surround the touch pattern 1142 to make full use of the space on the outside of the plastic housing. The antenna pattern 1141 may be U-shaped, and the touch pattern 1142 may be square.

[0129] In some implementations, the thickness of the silicone coating can be less than the thickness of the plastic housing, so as to further increase the anti-interference and sensitivity of the metal functional pattern while shielding and protecting it, and reduce the volume of the housing assembly.

[0130] As an example, the housing assembly can serve as the core housing for accommodating the speaker 112. The relative positional relationship between the plastic housing and the plastic coating can be the same as or similar to that between the core housing 111 and the flexible coating 1132, and will not be elaborated further here.

[0131] Furthermore, the housing assembly can be used not only in headphones 10 but also in other electronic devices such as smart glasses. These electronic devices may include a core module with a speaker 112, or a main control circuit board 13, and a speaker 112 and a battery 14 respectively coupled to the main control circuit board 13. The housing assembly can house 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 support the speaker 112 in the corresponding wearing position within the electronic device. It is worth noting that for electronic devices such as headphones and smart glasses based on bone conduction principles, the speaker 112 can be adaptively adjusted to a bone conduction speaker. The basic structure of a bone conduction speaker is well known to those skilled in the art and will not be described in detail here.

[0132] This application provides a housing assembly, which may include a first housing, electrode terminals 151, a magnet 127, and a flexible covering 128. The electrode terminals 151 and the magnet 127 are exposed on the same side of the first housing. The flexible covering 128 has a lower hardness than the first housing and covers the first housing and the magnet 127, so that the magnet 127 is not exposed while the electrode terminals 151 are exposed. Thus, compared to having the magnet 127 disposed within the first housing, this technical solution brings the magnet 127 closer to the outside direction facing the exposed end of the electrode terminals 151, 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 case, or the distance between the magnet 127 and the Hall sensor used to cooperate with the magnet 127. This is beneficial for improving the reliability of functions such as charging and detection. Therefore, the housing assembly can be applied to both receiving devices such as headphones 10 and smart glasses, and charging devices such as charging cases. In other words, the electronic device can be both a receiving device and a charging device. For ease of description, the first housing may be an adapter housing 122.

[0133] In some embodiments, the first housing may have a through hole 1251 and a blind hole 1252. The electrode terminal 151 may be at least partially disposed within the through hole 1251, and the magnet 127 may be at least partially disposed within the blind hole 1252, and exposed through the opening end of the blind hole 1252. This not only helps to reduce the thickness of the first housing in the region where the magnet 127 is located, but also helps to improve the appearance quality of the first housing in the region where the magnet 127 is located. Of course, the blind hole 1252 may also be provided as a through hole.

[0134] In some embodiments, a boss 126 may be provided on the outer side of the first housing. The boss 126 is disposed adjacent to the magnet 127 and protrudes from the first housing surrounding the magnet 127. The through hole 1251 further penetrates the boss 126, so that multiple electrode terminals 151 are exposed at the boss 126. In this way, the boss 126 makes the uneven parts of the first housing due to a certain curvature become flat, so as to facilitate the placement of the electrode terminals 151. The boss 126 can be elongated, with a simple and reliable structure.

[0135] In some embodiments, the housing assembly may include a flexible circuit board 16, with electrode terminals 151 connected to the flexible circuit board 16 to simplify the routing of the electrode terminals 151. The first housing may have a receiving cavity 124, within which at least a portion of the flexible circuit board 16 may be disposed. Through holes 1251 communicate with the receiving cavity 124, while blind holes 1252 do not communicate with the receiving cavity 124, thereby improving the waterproof and dustproof performance of the first housing.

[0136] In some embodiments, the housing assembly may include a second housing, an elastic metal wire 121, and a wire 129. The two ends of the elastic metal wire 121 and the wire 129 may be connected to a first housing and a second housing, respectively, so that the wire 129 extends along the elastic metal wire 121 and passes through the first and second housings. For ease of description, the second housing may be a battery housing 123. Further, a battery 14 is disposed within the second housing, and the battery 14 is connected to a flexible circuit board 16 via the wire 129. That is, both the battery 14 and the electrode terminals 151 are connected to the flexible circuit board 16 to simplify wiring. Accordingly, the flexible coating 128 further covers at least the elastic metal wire 121 and the wire 129 to expose the wire 129.

[0137] In some embodiments, the housing assembly may be used for the earphone 10 and may include a third housing for housing the speaker 112, the third housing being inserted and fixed to the first housing. For ease of description, the third housing may be a mechanism housing 111.

[0138] This application provides a housing assembly, which may include a first housing, electrode terminals 151, a microphone 152, and a support assembly 17. The first housing may have a receiving cavity 124, and through holes 1251 and 1253 respectively communicating with the receiving cavity 124. Through holes 1251 and 1253 are located on different sidewalls of the first housing. The electrode terminal 151 may be at least partially disposed within the through hole 1251, and the microphone 152 may be disposed within the receiving cavity 124, picking up sound from outside the housing assembly via the through hole 1253. Furthermore, the support assembly 17 may be disposed within the receiving cavity 124, and may support and fix the electrode terminal 151 and microphone 152 to the sidewalls corresponding to the through holes 1251 and 1253 respectively. This not only helps prevent the electrode terminal 151 and microphone 152 from separating from the first housing, but also improves the waterproof and dustproof performance of the electrode terminal 151 and microphone 152, and the structure is simple and reliable. For ease of description, the first housing can be either the adapter housing 122, the core housing 111, or a housing structure formed by integrating the core housing 111 and the adapter housing 122.

[0139] In some embodiments, the support assembly 17 may be independent of the first housing and inserted into the receiving cavity 124.

[0140] In some implementations, the support component 17 may be a one-piece molded structural component.

[0141] In some embodiments, the housing assembly can be used for the earphone 10 and may include a third housing for accommodating the speaker 112, the third housing being plugged into and fixed to the first housing. The first housing may be an adapter housing 122, and the third housing may be a mechanism housing 111.

[0142] Furthermore, the housing assembly can be used not only in headphones 10 but also in other electronic devices such as smart glasses. These electronic devices 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 housing assembly can be used to house 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 corresponding wearing position within the electronic device. It is worth noting that for electronic devices such as headphones and smart glasses based on bone conduction principles, the speaker 112 can be adaptively adjusted to a bone conduction speaker. The basic structure of a bone conduction speaker is well known to those skilled in the art and will not be described in detail here.

[0143] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. An earphone, characterized in that, The earphone includes a core module and a hook-shaped structure. The hook-shaped structure is connected to the core module. The core module has a connecting end and a free end. The connecting end is connected to the hook-shaped structure, and the free end is not connected to the hook-shaped structure. The mechanism module includes a mechanism housing and a speaker. The speaker is disposed inside the mechanism housing, and the mechanism housing is provided with a sound outlet. The sound waves generated by the speaker are propagated out through the sound outlet. When worn, the mechanism module is located on the front side of the ear, at least part of the hook-shaped structure is located on the back side of the ear, the free end extends into the concha cavity of the ear, the mechanism module cooperates with the concha cavity to form an auxiliary cavity without blocking the external auditory canal, the auxiliary cavity is connected to the external auditory canal, and the sound outlet is at least partially located in the auxiliary cavity.

2. The earphone according to claim 1, characterized in that, In the wearing state, the free end rests against the concha cavity.

3. The headphones according to claim 1 or 2, characterized in that, The mechanism module has an inner side surface, and the sound outlet is disposed on the inner side surface; In the wearing state, the inner side is located on the side of the movement module facing the ear, and there is a certain distance between the inner side and the concha cavity.

4. The headphones according to claim 1 or 2, characterized in that, The movement module has an inner side, an outer side, and a connecting surface, wherein the connecting surface connects the inner side and the outer side; In the wearing state, the inner side is located on the side of the movement module facing the ear, the outer side is located on the side of the movement module away from the ear, at least part of the connecting surface is located in the concha cavity and forms a first contact area with the front side of the ear region corresponding to the concha cavity, the hook-shaped structure forms a second contact area with the back side of the ear region, and the second contact area and the first contact area at least partially overlap in the ear thickness direction of the ear region.

5. The headphones according to claim 1 or 2, characterized in that, The mechanism module and the hook-shaped structure are configured to clamp the ear region from both the front and back sides of the ear region corresponding to the concha cavity. The mechanism module has a length direction, and the connecting end and the free end are arranged opposite to each other along the length direction. On a reference plane perpendicular to the length direction, the orthographic projection of the hook-shaped structure partially overlaps with the orthographic projection of the free end.

6. The earphone according to claim 5, characterized in that, The movement module has a thickness direction perpendicular to the length direction, and the movement module has an inner side and an outer side, which are arranged opposite to each other along the thickness direction; In the wearing state, the inner side is located on the side of the movement module facing the ear, and the outer side is located on the side of the movement module away from the ear; On the reference plane, the orthographic projection of the hook-shaped structure and the orthographic projection of the free end form an overlapping region, which is located between the inner and outer surfaces in the thickness direction.

7. The earphone according to claim 5, characterized in that, The hook-shaped structure includes an elastic metal wire and a battery housing. The elastic metal wire is connected to the movement module, and the battery housing is connected to the end of the elastic metal wire away from the movement module. The battery housing is provided with a battery coupled to the movement module. On the reference plane, the orthographic projection of the battery casing partially overlaps with the orthographic projection of the free end.

8. The earphone according to claim 1, characterized in that, The movement module has a length direction, and the connecting end and the free end are arranged opposite to each other along the length direction; When worn and viewed along the direction of the human coronal axis, the connecting end is closer to the top of the head than the free end, and the angle between the movement module in the length direction and the direction of the human sagittal axis is between 15° and 60°.

9. The earphone according to claim 1, characterized in that, The earphone includes a main control circuit board and a battery. The main control circuit board and the battery are disposed inside the core housing. The battery and the speaker are respectively coupled to the main control circuit board. The battery is closer to the connection end than the speaker.

10. The earphone according to claim 9, characterized in that, The earphone includes an adjustment mechanism that connects the core module and the hook-shaped structure. The adjustment mechanism is located at the connection end of the core module and is configured to adjust the core module and the concha cavity to form the auxiliary cavity in the wearing state.

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