Bone conduction speaker device

Abstract

The application discloses a bone conduction loudspeaker device, which comprises a core shell, a functional component and a lead wire; the core shell comprises a main shell and a partition plate assembly, the partition plate assembly is located in the main shell and connected with the main shell, thereby separating the internal space of the main shell into a first accommodating space and a second accommodating space; the functional component is arranged in the first accommodating space; the lead wire is used for electrically connecting the functional component and an external circuit located outside the core shell, wherein the lead wire is connected to the external circuit from the first accommodating space via the second accommodating space, and the second accommodating space is filled with sealing glue. In the above manner, the application can reduce the vibration of the lead wire and improve the sound quality.

Description

[0001] This application is a divisional application of Chinese patent application No. 201910010303.4, filed on January 5, 2019, entitled "Bone Conduction Speaker Device". Technical Field

[0002] This application relates to the field of bone conduction technology, and in particular to a bone conduction speaker device. Background Technology

[0003] Bone conduction is a sound conduction method. Bone conduction speakers use bone conduction technology to receive sound. Due to its advantages such as allowing both ears to be open and not damaging the eardrum, it is favored by many consumers.

[0004] In the assembly of bone conduction speakers, the wires are often longer than required for easy connection. However, if the excess wires at the headphone core are not properly positioned, they can vibrate and produce noise when the functional components are working, thereby reducing the sound quality of the bone conduction speaker and affecting the user's listening experience. Summary of the Invention

[0005] The main technical problem addressed by this application is to provide a bone conduction speaker device that can reduce the vibration of the conductor and improve sound quality.

[0006] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a bone conduction speaker device, comprising: a core housing, the core housing including a main housing and a partition assembly, the partition assembly being located inside the main housing and connected to the main housing, thereby dividing the internal space of the main housing into a first accommodating space and a second accommodating space; a functional component, the functional component being disposed in the first accommodating space; and a wire, the wire being used to electrically connect the functional component to an external circuit located outside the core housing, wherein the wire is connected from the first accommodating space through the second accommodating space to the external circuit, and is coiled within the second accommodating space.

[0007] The beneficial effect of this application is that, unlike the prior art, this application separates a second accommodating space in the internal space formed by the main housing of the mechanism housing to accommodate excess wires, thereby avoiding or reducing the influence of excess wires on the sound emitted by the bone conduction speaker due to vibration, so as to improve the sound quality. Attached Figure Description

[0008] 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 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. Wherein:

[0009] Figure 1 This is an exploded structural diagram of one embodiment of the bone conduction speaker device of this application;

[0010] Figure 2 This is a partial structural diagram of the ear hook in one embodiment of the bone conduction speaker device of this application;

[0011] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0012] Figure 4 This is a partial cross-sectional view of one embodiment of the bone conduction speaker device of this application;

[0013] Figure 5 yes Figure 4 A magnified view of part B in the middle section;

[0014] Figure 6 This is a partial structural cross-sectional view of one embodiment of the bone conduction speaker device of this application;

[0015] Figure 7 yes Figure 6 A magnified view of part C in the middle;

[0016] Figure 8 This is a partial structural schematic diagram of the core housing of one embodiment of the bone conduction speaker device of this application;

[0017] Figure 9 yes Figure 8 A magnified view of part D in the middle;

[0018] Figure 10 This is a partial cross-sectional view of the housing of the core component of one embodiment of the bone conduction speaker device of this application;

[0019] Figure 11 This is an exploded view of the circuit housing and ear hook in one embodiment of the bone conduction speaker device of this application;

[0020] Figure 12 This is a partial cross-sectional view of a portion of the structure of one embodiment of the bone conduction speaker device of this application;

[0021] Figure 13 yes Figure 1 A magnified view of part E in the middle;

[0022] Figure 14 This is a cross-sectional view of the circuit housing in one embodiment of the bone conduction speaker device of this application;

[0023] Figure 15 yes Figure 14 A magnified view of part F in the middle;

[0024] Figure 16 This is an exploded view of the circuit housing and button structure in one embodiment of the bone conduction speaker device of this application;

[0025] Figure 17 yes Figure 6 A magnified view of part G in the middle;

[0026] Figure 18 This is a schematic diagram of the structure of the conductive column in one embodiment of the bone conduction speaker device of this application;

[0027] Figure 19 This is a cross-sectional view of the circuit housing, conductive pillars, and main control circuit board in one embodiment of the bone conduction speaker device of this application;

[0028] Figure 20 yes Figure 19 A magnified view of part H in the middle;

[0029] Figure 21 This is a partial exploded view of the circuit housing and auxiliary plate in one embodiment of the bone conduction speaker device of this application;

[0030] Figure 22 This is a partial structural schematic diagram of the circuit housing and auxiliary plate in one embodiment of the bone conduction speaker device of this application;

[0031] Figure 23 This is an exploded view of a portion of the circuit housing and the rear-mounted structure in one embodiment of the bone conduction speaker device of this application;

[0032] Figure 24 This is a partial structural cross-sectional view of the circuit housing and the rear-mounted component in one embodiment of the bone conduction speaker device of this application;

[0033] Figure 25 This is a partial structural diagram of the rear-mounted component in one embodiment of the bone conduction speaker device of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] Please refer to the following: Figures 1 to 25 , Figures 1 to 25 The illustration depicts the bone conduction speaker device of this application. The bone conduction speaker device of this application can be a bone conduction-based headset, MP3 player, or other device with speaker functionality. Specifically, the bone conduction speaker device may include: an ear hook 10, a mechanism housing 20, a circuit housing 30, a rear hook 40, an earphone housing 50, a control circuit 60, and a battery 70. The mechanism housing 20 and the circuit housing 30 are respectively disposed at both ends of the ear hook 10, and the rear hook 40 is further disposed at the end of the circuit housing 30 away from the ear hook 10. There are two mechanism housings 20, each accommodating the earphone housing 50; there are also two circuit housings 30, each accommodating the control circuit 60 and the battery 70, respectively. The two ends of the rear hook 40 are respectively connected to the corresponding circuit housing 30.

[0036] Among them, the ear hook 10 refers to the structure used to surround and support the user's ear root when the user wears the bone conduction speaker device, thereby suspending and fixing the core housing 20 and the earphone core 50 at a predetermined position on the user's ear.

[0037] Specifically, the ear hook 10 includes an elastic metal wire 11, a wire 12, a fixing sleeve 13, and a connector 14 and a connector 15 disposed at both ends of the elastic metal wire 11. It further includes a protective sleeve 16 and a housing sheath 17 integrally formed with the protective sleeve 16.

[0038] The elastic metal wire 11 is primarily used to maintain the ear hook 10 in a shape that matches the user's ear and possesses a certain degree of elasticity. This allows it to adapt to different ear and head shapes during wear. In this embodiment, the elastic metal wire 11 can be made of a shape-memory alloy, which has excellent deformation recovery capabilities. Even if the ear hook 10 is deformed by external force, it can still return to its original shape when the force is removed, allowing it to continue to be used by the user and extending the lifespan of the bone conduction speaker. Of course, in other embodiments, the elastic metal wire 11 can also be made of a non-shape-memory alloy.

[0039] The wire 12 can be used to make electrical connections with the earphone core 50, control circuit 60, battery 70, etc., to supply power and transmit data for the operation of the earphone core 50.

[0040] The fixing sleeve 13 is used to fix the wire 12 to the elastic metal wire 11. Specifically, the number of fixing sleeves 13 can be one or more, depending on the actual needs. In this embodiment, there are at least two fixing sleeves 13. The at least two fixing sleeves 13 can be arranged at intervals along the direction of the elastic metal wire 11 and the wire 12, and the wire 12 is fixed to the elastic metal wire 11 by wrapping around the wire 12 and the elastic metal wire 11.

[0041] The connectors 14 and 15 can be made of rigid materials, such as plastic. In this embodiment, the connectors 14 and 15 can be formed at both ends of the elastic wire 11 by injection molding. In other embodiments, the connectors 14 and 15 can be injection molded separately, with connection holes pre-drilled at the ends of the elastic wire 11 during injection molding. After injection molding, the connectors 14 and 15 can be inserted into the corresponding ends of the elastic wire 11 through the connection holes, or they can be fixed by adhesive bonding.

[0042] It should be noted that in this embodiment, the connector 14 and connector 15 may not be directly injection molded around the conductor 12, but rather are formed away from the conductor 12 during injection molding. Specifically, during the injection molding of the connector 14 and connector 15, the conductor 12 located at both ends of the elastic metal wire 11 can be fixed away from the connector 14 and connector 15. Furthermore, a first wiring channel 141 and a second wiring channel 151 are respectively provided on the connector 14 and connector 15, so that after injection molding, the conductor 12 can be extended along the first wiring channel 141 and the second wiring channel 151. Specifically, after the first wiring channel 141 and the second wiring channel 151 are formed, the conductor 12 can be threaded into the first wiring channel 141 and the second wiring channel 151 in a threading manner.

[0043] Of course, in other embodiments, depending on the actual situation, the connector 14 and connector 15 can be directly injection molded onto the periphery of the wire 12, without specific limitations here.

[0044] Specifically, in one embodiment, the first wiring channel 141 may include a first wiring groove 1411 and a first wiring hole 1412 communicating with the first wiring groove 1411. The first wiring groove 1411 is disposed communicating with the side wall surface of the connector 14, and one end of the first wiring hole 1412 communicates with one end of the first wiring groove 1411, while the other end communicates with the outer end face of the connector 14. The wire 12 at the connector 14 extends along the first wiring groove 1411 and the first wiring hole 1412 and is exposed on the outer end face of the connector 14 for further connection with other structures.

[0045] Accordingly, the second wiring channel 151 may include a second wiring groove 1511 and a second wiring hole 1512 communicating with the second wiring groove 1511. The second wiring groove 1511 is disposed communicating with the side wall surface of the connector 15, and one end of the second wiring hole 1512 communicates with one end of the second wiring groove 1511, while the other end communicates with the outer end face of the connector 15. The wire 12 at the connector 15 extends along the second wiring groove 1511 and the second wiring hole 1512 and is exposed on the outer end face of the connector 15 for further connection with other structures.

[0046] Wherein, the outer end face of the connector 14 refers to the end face of the connector 14 away from the connector 15; correspondingly, the outer end face of the connector 15 refers to the end face of the connector 15 away from the connector 14.

[0047] Furthermore, the protective sleeve 16 can be injection molded around the elastic metal wire 11, the wire 12, the fixing sleeve 13, the connector 14, and the connector 15, thereby fixing the protective sleeve 16 to the elastic metal wire 11, the wire 12, the fixing sleeve 13, the connector 14, and the connector 15 respectively, without having to separately injection mold the protective sleeve 16 and then further fit it around the elastic metal wire 11 and the connector 14 and connector 15. This simplifies the manufacturing and assembly process, and in this way, the fixing of the protective sleeve 16 can be more reliable and stable.

[0048] Furthermore, during the molding of the protective sleeve 16, a housing sheath 17 is integrally molded with the protective sleeve 16 and disposed on the side near the insertion end 15.

[0049] The housing sheath 17 can be integrally formed with the protective sleeve 16 to form a whole. The circuit housing 30 can be connected and fixed to one end of the ear hook 10 by plugging and fixing with the plug terminal 15. The housing sheath 17 can be further wrapped around the circuit housing 30 in a suit-like manner.

[0050] The protective sleeve 16 and the housing sheath 17 can be made of a soft material with a certain degree of elasticity, such as soft silicone or rubber.

[0051] Specifically, the ear hook 10 of the bone conduction speaker can be manufactured through the following steps:

[0052] Step S101: Fix the wire 12 to the elastic metal wire 11 using the fixing sleeve 13, wherein injection molding positions are reserved at both ends of the elastic metal wire 11;

[0053] Specifically, the elastic metal wire 11 and the wire 12 can be placed side by side in a preset manner, and then the fixing sleeve 13 can be further fitted around the wire 12 and the elastic metal wire 11 to fix the wire 12 on the elastic metal wire 11.

[0054] Since the two ends of the elastic metal wire 11 also need to be injection molded into the connector 14 and connector 15, the two ends of the elastic metal wire 11 cannot be completely wrapped by the fixing sleeve 13 during fixing. Instead, corresponding injection molding positions need to be reserved for the connector 14 and connector 15 to be injection molded.

[0055] Step S102: Inject the connector 14 and connector 15 into the injection positions at both ends of the elastic metal wire 11, respectively, wherein the connector 14 and connector 15 are respectively provided with a first wiring channel 141 and a second wiring channel 151.

[0056] Step S103: Configure the wire 12 to extend along the first wiring channel 141 and the second wiring channel 151;

[0057] Specifically, after the connector 14 and connector 15 are formed, the two ends of the wire 12 can be manually or mechanically threaded into the first wiring channel 141 and the second wiring channel 151, respectively. The portion of the wire 12 located between the first wiring channel 141 and the second wiring channel 151 is fixed to the elastic metal wire 11 by the fixing sleeve 13.

[0058] Step S104: A protective sleeve 16 is formed by injection molding around the elastic metal wire 11, the wire 12, the fixing sleeve 13, the connector 14 and the connector 15.

[0059] In one embodiment, during step S104, a housing sheath 17 is further formed by injection molding, which is integrally formed with the protective sleeve 16 surrounding the connector 15.

[0060] It should be noted that, in other embodiments, the wire 12 may not be installed initially when installing the fixing sleeve 13, but may be installed after the connector 14 and connector 15 have been injection molded. The specific steps are as follows:

[0061] Step S201: The fixing sleeve 13 is fitted onto the elastic metal wire 11, wherein injection molding positions are reserved at both ends of the elastic metal wire 11;

[0062] Step S202: Inject the connector 14 and connector 15 into the injection positions at both ends of the elastic metal wire 11, respectively, wherein the connector 14 and connector 15 are respectively provided with a first wiring channel 141 and a second wiring channel 151.

[0063] Step S203: Pass the wire 12 through the inside of the fixing sleeve 13 to fix the wire 12 to the elastic metal wire 11 using the fixing sleeve 13, and further arrange the wire 12 to extend along the first wiring channel 141 and the second wiring channel 151.

[0064] It should be noted that this method can avoid interference from the wire 12 during injection molding of the connector 14 and connector 15, thus facilitating the smooth progress of molding.

[0065] In this embodiment, as well as in the methods described above, the structure, function, and formation of the elastic metal wire 11, wire 12, fixing sleeve 13, connector 14, connector 15, and protective sleeve 16 are all the same as in the above embodiments. For details, please refer to the above embodiments, which will not be repeated here.

[0066] In one embodiment, the housing 20 can be used to accommodate the earphone core 50 and to be connected and fixed to the connector 14. There are two earphone cores 50 and two housings 20, corresponding to the user's left and right ears respectively.

[0067] Specifically, the movement housing 20 can be connected to the connector 14 by means of plugging, snapping, or other methods to fix the movement housing 20 and the ear hook 10 together. That is to say, in this embodiment, the ear hook 10 and the movement housing 20 can be formed separately first and then further assembled together, rather than forming the two as a single piece directly.

[0068] In this way, the ear loop 10 and the movement housing 20 can be formed separately using their respective molds, without having to use a single large mold to form them as a whole. This reduces the size of the molds, thereby reducing the difficulty of mold processing and forming. In addition, since the ear loop 10 and the movement housing 20 are processed using different molds, when it is necessary to adjust the shape or structure of one of the ear loop 10 or the movement housing 20 during the manufacturing process, only the mold corresponding to that structure needs to be adjusted, without having to adjust the mold of the other structure, thereby reducing production costs.

[0069] Of course, in other implementations, the ear hook 10 and the movement housing 20 can also be integrally formed, depending on the circumstances.

[0070] In one embodiment, the movement housing 20 is provided with a connector hole 22 that communicates with the outer end face 21 of the movement housing 20, and a stop block 23 is provided on the inner side wall of the connector hole 22.

[0071] The outer end face 21 of the movement housing 20 refers to the end face of the movement housing 20 facing the ear hook 10. The insertion hole 22 provides a space for the insertion end 14 of the ear hook 10 to be inserted into the movement housing 20, so as to further realize the insertion and fixation of the insertion end 14 and the movement housing 20.

[0072] The stop block 23 can be formed by protruding from the inner sidewall of the insertion hole 22 in a direction perpendicular to the inner sidewall. Specifically, the stop block 23 can be a plurality of spaced block protrusions, or it can be an annular protrusion along the inner sidewall of the insertion hole 22, which is not specifically limited here.

[0073] The connector 14 includes an insertion part 142 and two elastic hooks 143.

[0074] Specifically, the insertion part 142 is at least partially inserted into the socket 22 and abuts against the outer side 231 of the stop block 23. The shape of the outer side wall of the insertion part 142 matches the shape of the inner side wall of the socket 22, so that when the insertion part 142 is at least partially inserted into the socket 22, the outer side wall of the insertion part 142 abuts against the inner side wall of the socket 22.

[0075] The outer surface 231 of the stop block 23 refers to the side of the stop block 23 facing the ear loop 10. The insertion part 142 may further include an end face 1421 facing the movement housing 20, which can match the outer surface 231 of the stop block 23, so that when the insertion part 142 is at least partially inserted into the insertion hole 22, the end face 1421 of the insertion part 142 abuts against the outer surface 231 of the stop block 23.

[0076] Specifically, the cross-sectional shape of the insertion hole 22 of the movement housing 20 along the direction perpendicular to the insertion end 14 relative to the movement housing 20 can be an elliptical ring or a near-elliptical ring. Correspondingly, the cross-section of the insertion part 142 can be a near-elliptical shape that matches the insertion hole 22. Of course, the shapes of both can also be other, and can be set according to actual needs.

[0077] Furthermore, two resilient hooks 143 are arranged side-by-side and symmetrically spaced along a direction perpendicular to the insertion direction on the side of the insertion portion 142 facing the interior of the movement housing 20. Each resilient hook 143 may include a beam portion 1431 and a hook portion 1432. The beam portion 1431 is connected to the side of the insertion portion 142 facing the movement housing 20, and the hook portion 1432 is located at the end of the beam portion 1431 away from the insertion portion 142 and extends perpendicular to the insertion direction. Furthermore, each hook portion 1432 is provided with a transition slope 14321 connecting the side face parallel to the insertion direction and the end face away from the insertion portion 142.

[0078] During the installation process of the ear hook 10 and the movement housing 20, the insertion end 14 gradually enters the movement housing 20 through the insertion hole 22. When it reaches the position of the stop block 23, the hooks 1432 of the two elastic hooks 143 are blocked by the stop block 23. Under the action of external force, the stop block 23 gradually squeezes the transition slope 14321 of the hooks 1432, causing the two elastic hooks 143 to elastically deform and come together. When the transition slope 14321 passes through the stop block 23 and reaches the side of the stop block 23 near the inside of the movement housing 20, the elastic hooks 143 elastically recover due to the loss of the stop block 23 and are locked on the inner side of the stop block 23 facing the inside of the movement housing 20. Thus, the stop block 23 is locked between the insertion part 142 and the hook 1432 of the insertion end 14, thereby realizing the insertion and fixing of the movement housing 20 and the insertion end 14.

[0079] In one embodiment, after the movement housing 20 is connected and fixed to the connector 14, the insertion part 142 is partially inserted into the connector hole 22, and the exposed part of the insertion part 142 is arranged in a stepped shape, thereby forming an annular platform 1422 spaced apart from the outer end face 21 of the movement housing 20.

[0080] It should be noted that the exposed portion of the insertion part 142 refers to the part of the insertion part 142 that is exposed outside the movement housing 20. Specifically, it can refer to the part that is exposed outside the movement housing 20 and close to the outer end face of the movement housing 20.

[0081] The annular platform 1422 can be positioned opposite to the outer end face 21 of the movement housing 20, and the interval between them can refer to the interval along the insertion direction and the interval perpendicular to the insertion direction.

[0082] Furthermore, the protective sleeve 16 extends to the side of the annular platform 1422 facing the outer end face 21 of the core housing 20, and fills the gap between the annular platform 1422 and the outer end face 21 of the core housing 20 when the insertion hole 22 of the core housing 20 is inserted and fixed to the insertion end 14, and elastically abuts against the core housing 20, so that external liquid is difficult to enter the core housing 20 from the joint between the insertion end 14 and the core housing 20, thereby achieving a seal between the insertion end 14 and the insertion hole 22, so as to protect the earphone core 50 and other components inside the core housing 20, thereby improving the waterproof effect of the bone conduction speaker.

[0083] Specifically, in one embodiment, the protective sleeve 16 forms an annular abutment surface 161 on the side of the annular platform 1422 facing the outer end face 21 of the movement housing 20. The annular abutment surface 161 is the end face of the protective sleeve 16 facing the movement housing 20.

[0084] Furthermore, the protective sleeve 16 also includes an annular boss 162 located inside the annular abutment surface 161 and protruding relative to the annular abutment surface 161. Specifically, the annular boss 162 is formed on the side of the annular abutment surface 161 facing the insertion end 14, and protrudes relative to the annular abutment surface 161 in the direction toward the movement housing 20. Furthermore, the annular boss 162 can also be directly formed on the periphery of the annular platform 1422 and cover the annular platform 1422.

[0085] Furthermore, the movement housing 20 includes a connecting slope 24 for connecting the outer end face 21 of the movement housing 20 and the inner sidewall of the insertion hole 22. Specifically, the connecting slope 24 is a transition surface between the outer end face 21 of the movement housing 20 and the inner sidewall of the insertion hole 22, and neither the connecting slope 24 nor the outer end face 21 of the movement housing 20 nor the inner sidewall of the insertion hole 22 is on the same plane. The connecting slope 24 can be a plane, or it can be a curved surface or other shapes depending on actual needs; no specific limitation is made here.

[0086] Specifically, when the movement housing 20 is connected and fixed to the connector end 14, the annular abutment surface 161 and the annular boss 162 elastically abut against the outer end face of the movement housing 20 and the connecting inclined surface 24, respectively.

[0087] It should be noted that since the outer end face 21 and the connecting inclined surface 24 of the core housing 20 are not on the same plane, the elastic contact between the protective sleeve 16 and the core housing 20 is not on the same plane. This makes it difficult for external liquid to enter the core housing 20 through the space between the protective sleeve 16 and the core housing 20 and further enter the earphone core 50. This improves the waterproof effect of the bone conduction speaker, protects the internal functional structure, and extends the service life of the bone conduction speaker.

[0088] In one embodiment, the insertion portion 142 further forms an annular groove 1423 adjacent to the annular platform 1422 on the side of the annular platform 1422 facing the outer end face 21 of the movement housing 20, wherein an annular boss 162 may be formed in the annular groove 1423.

[0089] In this embodiment, the annular groove 1423 may be formed on the side of the annular platform 1422 facing the movement housing 20. In one application scenario, the annular platform 1422 is the side wall of the annular groove 1423 facing the movement housing 20, and in this case, the annular boss 162 is formed in the annular groove 1423 along the side wall.

[0090] In one embodiment, one end of the wire 12 of the ear hook 10 located outside the mechanism housing 20 can pass through the second wiring channel 151 to further connect to the external circuits outside the mechanism housing 20, such as the control circuit 60 and the battery 70 contained in the circuit housing 30. The other end is exposed on the outer end face of the connector 14 along the first wiring channel 141, and further enters the interior of the mechanism housing 20 through the connector hole 22 along the insertion part 142.

[0091] In one embodiment, the movement housing 20 may include a main housing 25 and a partition assembly 26, wherein the partition assembly 26 is located inside the main housing 25 and connected to the main housing 25, thereby dividing the internal space 27 of the main housing 25 into a first accommodating space 271 and a second accommodating space 272 near the side of the insertion hole 22.

[0092] Specifically, the main housing 25 includes a peripheral sidewall 251 and a bottom endwall 252 connected to one end face of the peripheral sidewall 251. The peripheral sidewall 251 and the bottom endwall 252 together surround and form an internal space 27 of the main housing 25.

[0093] The partition assembly 26 is located on the side of the main housing 25 near the insertion hole 22 and includes a side partition 261 and a bottom partition 262. The side partition 261 is arranged perpendicular to the bottom end wall 252, and both ends of the side partition 261 are connected to the peripheral side wall 251, thereby dividing the internal space 27 of the main housing 25. The bottom partition 262 is parallel or nearly parallel to the bottom end wall 252 and spaced apart, and is further connected to the peripheral side wall 251 and the side partition 261, thereby dividing the internal space 27 formed by the main housing 25 into two parts: a first accommodating space 271 formed by the side partition 261, the bottom partition 262, and the peripheral side wall 251 and bottom end wall 252 away from the insertion hole 22; and a second accommodating space 272 formed by the bottom partition 262, the side partition 261, and the peripheral side wall 251 near the insertion hole 22. The second accommodating space 272 may be smaller than the first accommodating space 271.

[0094] Of course, the partition assembly 26 can also divide the internal space 27 of the main housing 25 through other settings, which are not specifically limited here.

[0095] Furthermore, the headphone core 50 includes a functional component 51 disposed within the first accommodating space 271, which can be used to vibrate and generate sound. The bone conduction speaker may further include a wire 80 with one end connected to the functional component 51, and the other end of the wire 80 may extend from the first accommodating space 271 into a second accommodating space 272.

[0096] Specifically, the side partition 261 may have a wiring groove 2611 provided at its top edge away from the bottom end wall 252, which connects the first accommodating space 271 and the second accommodating space 272. Further, the end of the wire 12 away from the functional component extends into the second accommodating space 272 via the wiring groove.

[0097] In addition, after the end of the wire 12 of the ear hook 10 away from the circuit housing 30 enters the interior of the mechanism housing 20 with the insertion part 142, it can further extend into the second accommodating space 272 and be electrically connected to the wire 80 in the second accommodating space 272 to form a wire path from the first accommodating space 271 through the second accommodating space 272 to the external circuit, thereby electrically connecting the functional component 51 to the external circuit located outside the mechanism housing 20 through the wire path.

[0098] Specifically, a wiring hole 2621 may be provided on the bottom partition 262, which connects the connector hole 22 to the second accommodating space 272, so that the wire 12 entering the movement housing 20 from the connector hole 22 can extend to the second accommodating space 272 through the wiring hole 2621.

[0099] In this configuration, after the wires 12 and 80 are connected within the second accommodating space 272, they are coiled within the second accommodating space 272. Specifically, the wires 12 and 80 can be connected together by soldering, thereby electrically connecting the functional component 51 to an external circuit, so that the external circuit can provide power for the normal operation of the functional component 51 or transmit data to the earphone core 50.

[0100] It should be noted that during the assembly of bone conduction speaker devices, the wires are often longer than required to facilitate assembly. However, if the excess wires at the earphone core 50 are not properly placed, they can easily vibrate and produce abnormal noises when the functional component 51 is working, thereby reducing the sound quality of the bone conduction speaker device and affecting the user's listening experience. In this embodiment, a second accommodating space 272 is separated in the internal space 27 formed by the main housing 25 of the core housing 20 to accommodate the excess wires 12 and 80, thereby avoiding or reducing the impact of the excess wires on the sound emitted by the bone conduction speaker device due to vibration, and improving the sound quality.

[0101] In one embodiment, the partition assembly 26 further includes an inner partition 263, which further divides the second accommodating space 272 into two sub-accommodating spaces 2721. Specifically, the inner partition 263 is disposed perpendicular to the bottom end wall 252 of the main housing 25, and is connected to the side partition 261 and the peripheral side wall 251 respectively, and further extends to the wiring hole 2621, thereby dividing the second accommodating space 272 into two sub-accommodating spaces 2721, and further dividing the wiring hole 2621 into two, with each wiring hole 2621 communicating with its corresponding sub-accommodating space 2721.

[0102] In this embodiment, there can be two wires 12 and two wires 80. The two wires 12 extend separately along the corresponding wiring holes 2621 into their respective sub-accommodating spaces 2721, while the two wires 80 still enter the second accommodating space 272 together through the wiring groove 2611. After entering the second accommodating space 272, they separate and are soldered together with the corresponding wires 12 in the corresponding sub-accommodating spaces 2721, and are further coiled and arranged in the corresponding sub-accommodating spaces 2721.

[0103] Furthermore, in one embodiment, the second accommodating space 272 may be further filled with sealant. In this way, the wires 12 and 80 housed in the second accommodating space 272 can be further fixed, thereby further reducing the adverse effects on sound quality caused by wire vibration, thus improving the sound quality of the bone conduction speaker. At the same time, it can protect the welding points between the wires 12 and 80. In addition, sealing the second accommodating space 272 can also achieve the purpose of waterproofing and dustproofing.

[0104] In one embodiment, the circuit housing 30 is connected and fixed to the connector 15, thereby fixing the circuit housing 30 to the end of the ear hook 10 away from the mechanism housing 20. When worn by the user, the circuit housing 30 housing the battery 70 and the circuit housing 30 housing the control circuit 60 can respectively correspond to the user's left and right sides, and their connection methods with the corresponding connector 15 can differ.

[0105] Specifically, the circuit housing 30 can be connected to the connector 15 by means of plugging, snapping, or other methods. That is to say, in this embodiment, the ear hook 10 and the circuit housing 30 can be formed independently first, and then further assembled together after forming, rather than directly forming the two as one piece.

[0106] In this way, the ear hook 10 and the circuit housing 30 can be formed separately using their respective molds, without having to use a single large mold to form them as a whole. This reduces the size of the molds, thereby reducing the difficulty of mold processing and forming. In addition, since the ear hook 10 and the circuit housing 30 are processed using different molds, when it is necessary to adjust the shape or structure of one of the ear hook 10 or the circuit housing 30 during the manufacturing process, only the mold corresponding to that structure needs to be adjusted, without having to adjust the mold of the other structure, thereby reducing production costs.

[0107] Furthermore, in one embodiment, the circuit housing 30 is provided with a connector hole 31, the shape of the inner surface of the connector hole 31 being able to match the shape of at least a portion of the outer surface of the connector end 15, thereby enabling the connector end 15 to be at least partially inserted into the connector hole 31.

[0108] Furthermore, slots 152 are respectively provided on opposite sides of the connector 15, which are perpendicular to the insertion direction of the connector 15 relative to the connector hole 31. Specifically, the two slots 152 are symmetrically and spaced apart on opposite sides of the connector 15, and both communicate with the side wall of the connector 15 in the direction perpendicular to the insertion direction.

[0109] Accordingly, the first sidewall 30a of the circuit housing 30 is provided with two through holes 32 corresponding to the positions of the two slots 152, which penetrate the first sidewall 30a.

[0110] The circuit housing 30 can be flat. For example, the cross-section of the circuit housing 30 at the second connector 31 can be elliptical, or it can be formed into other flat shapes. In this embodiment, the two larger, oppositely arranged sidewalls of the circuit housing 30 are main sidewalls 33, and the two smaller, oppositely arranged sidewalls connecting the two main sidewalls 33 are auxiliary sidewalls 34. In this embodiment, the first sidewall 30a of the circuit housing 30 can be either a main sidewall 33 or an auxiliary sidewall 34, depending on actual needs.

[0111] Of course, in other embodiments, the cross-section of the circuit housing 30 at the connector hole 31 can also be a circle or other shapes, which can be set according to actual needs.

[0112] Furthermore, the bone conduction speaker may also include a fixing member 81, which includes two parallel pins 811 and a connecting portion 812 for connecting the pins 811. Specifically, the connecting portion 812 may be vertically connected to one end of the two pins 811 facing the same direction, thereby forming a U-shaped fixing member 81.

[0113] Among them, the two pins 811 are inserted from the outside of the circuit housing 30 through the through hole 32 into the slot 152, thereby blocking the connection part 812 on the outside of the circuit housing 30, thus realizing the connection and fixation between the circuit housing 30 and the plug end 15.

[0114] Furthermore, in one embodiment, a strip-shaped groove 35 for connecting the two through holes 32 is further formed on the first sidewall 30a of the circuit housing 30. When the fastener 81 is used for insertion and fixing, the connecting part 812 can be partially or completely recessed into the strip-shaped groove 35. This makes the bone conduction speaker device more uniform overall, and eliminates the need to specially form grooves corresponding to the connecting part 812 on the housing sleeve 17 surrounding the circuit housing 30, simplifying the mold of the housing sleeve 17. On the other hand, it can also reduce the space occupied by the bone conduction speaker device to a certain extent.

[0115] In one application scenario, after the connecting part 812 is partially or completely embedded in the strip groove 35, adhesive can be applied to the strip groove 35. In this way, on the one hand, the fastener 81 can be fixed to the circuit housing 30, thereby making the connection between the plug end 15 and the plug hole 31 more stable; on the other hand, after the connecting part 812 is embedded in the strip groove 35, the groove 35 can be filled with adhesive to make it consistent with the first side wall 30a of the circuit housing 30, so that after the housing sleeve 17 is put on, the groove 35 is more flat and continuous with the surrounding structure.

[0116] In one embodiment, a through hole 36 opposite to the through hole 32 is further provided on the second side wall 30b of the circuit housing 30, which is opposite to the first side wall 30a of the circuit housing 30, and the pin 811 is further inserted into the through hole 36 through the slot 152.

[0117] Specifically, both the first sidewall 30a and the second sidewall 30b of the circuit housing 30 can be either the main sidewall 33 or the auxiliary sidewall 34 of the circuit housing 30. In this embodiment, the first sidewall 30a and the second sidewall 30b of the circuit housing 30 are two opposing main sidewalls 33 of the circuit housing 30. That is, the two through holes 32 and the two through holes 36 are respectively provided on the sidewall with the larger area of ​​the circuit housing 30, so that a larger interval can be provided between the two pins 811 of the fixing member 81 to increase the span of the fixing member 81, thereby improving the stability of the connection between the plug end 15 and the plug hole 31.

[0118] In this embodiment, the pin 811 is inserted into the slot 152 through the through hole 32, and further inserted into the through hole 36 through the slot 152. That is to say, the pin 811 can completely penetrate and fix the two opposing main sidewalls 33 of the circuit housing 30 and the plug end 15 together, thereby making the connection between the plug end 15 and the circuit housing 30 more secure.

[0119] Furthermore, as described in the above embodiments, when the protective sleeve 16 is formed, a housing sheath 17 is integrally formed with the protective sleeve 16 and disposed on the side near the insertion end 15.

[0120] The housing sleeve 17 and the circuit housing 30 are respectively formed, and the shape of the inner sidewall of the housing sleeve 17 matches the outer sidewall of the circuit housing 30. After the two are formed, the housing sleeve 17 is fitted around the circuit housing 30.

[0121] It should be noted that, since the ambient temperature is high when the housing sleeve 17 is being molded, and the high temperature environment may cause some damage to the control circuit 60 or battery 70 housed in the circuit housing 30, the circuit housing 30 and the housing sleeve 17 are molded separately during the molding stage and then assembled together. This can avoid damage to the control circuit 60 or battery 70 caused by the high temperature during the molding of the housing sleeve 17, thereby reducing the adverse effects of molding on the control circuit 60 or battery 70.

[0122] Furthermore, the housing sleeve 17 can be a bag-shaped structure with one end open, so that the circuit housing 30 can enter the interior of the housing sleeve 17 through the open end of the housing sleeve 17.

[0123] In this embodiment, after the housing sheath 17 is integrally formed with the protective sleeve 16, it can be removed from the mold by rolling it up from the open end. During surface treatments such as visual inspection and screen printing, the housing sheath 17 can be further fitted onto a preset structure through the opening. After the operation is completed, it can be removed from the preset structure by rolling it up from the opening. After inspection and processing, the housing sheath 17 can be fitted onto the periphery of the circuit housing 30 through the opening. In the above operations, removing the housing sheath 17 is not limited to the rolling method described above; it can also be done by inflation or other methods, which are not specifically limited here.

[0124] Specifically, the open end of the housing sleeve 17 is the end of the housing sleeve 17 that is away from the protective sleeve 16, so that the circuit housing 30 enters the interior of the housing sleeve 17 from the end of the housing sleeve 17 that is away from the protective sleeve 16, so as to be covered by the housing sleeve 17.

[0125] In one embodiment, the open end of the housing sheath 17 is provided with an inwardly protruding annular flange 171. Further, the end of the circuit housing 30 away from the ear hook 10 is stepped, thereby forming an annular platform 37. When the housing sheath 17 covers the periphery of the circuit housing 30, the annular flange 171 abuts against the annular platform 37.

[0126] Specifically, the annular flange 171 is formed by protruding a certain thickness from the inner wall surface of the opening end of the housing sleeve 17 toward the interior of the housing sleeve 17, and includes a flange surface 172 facing the ear hook 10.

[0127] Among them, the annular platform 37 is opposite to the flange surface 172 and faces the circuit housing 30 away from the ear hook 10.

[0128] The height of the flange surface 172 of the annular flange 171 is not greater than the height of the annular platform 37, so that when the flange surface 172 of the annular flange 171 abuts against the annular platform 37, the inner wall surface of the housing sleeve 17 can fully abut against the side wall surface of the circuit housing 30, thereby allowing the housing sleeve 17 to tightly cover the periphery of the circuit housing 30.

[0129] Furthermore, in one embodiment, sealant may be applied to the mating area between the annular flange 171 and the annular platform 37. Specifically, when fitting the housing sheath 17, sealant may be applied to the annular platform 37 to seal the housing sheath 17 to the circuit housing 30.

[0130] In one embodiment, a positioning block 38 is further provided on the circuit housing 30. The positioning block 38 is disposed on the annular platform 37 and extends along the direction of the circuit housing 30 away from the ear hook 10. Specifically, the positioning block 38 can be disposed on the auxiliary sidewall 34 of the circuit housing 30, and the thickness of the positioning block 38 protruding on the auxiliary sidewall 34 is consistent with the height of the annular platform 37. The number of positioning blocks 38 can be set to one or more as needed.

[0131] Accordingly, a positioning groove 173 corresponding to the positioning block 38 is provided at the annular flange 171 of the housing sleeve 17, so that when the housing sleeve 17 covers the periphery of the circuit housing 30, the positioning groove 173 covers at least part of the positioning block 38.

[0132] In this way, when fitting the housing cover 17, the housing cover 17 can be positioned according to the positions of the positioning block 38 and the positioning groove 173, facilitating quick and accurate installation by the operator. Of course, in other embodiments, the positioning block may be omitted depending on actual needs.

[0133] In one embodiment, the circuit housing 30 includes two sub-housings that engage with each other, namely a first sub-housing 301 and a second sub-housing 302. Specifically, the two sub-housings may engage symmetrically along the centerline of the circuit housing 30, or they may engage in other ways as needed. Furthermore, the engagement method of the two sub-housings of the circuit housing 30 for accommodating the control circuit 60 may be the same as or different from the engagement method of the two sub-housings of the circuit housing 30 for accommodating the battery 70.

[0134] In one application scenario, the annular platform 37 of the circuit housing 30 can be formed on the first sub-housing 301. The two sub-housings are joined on the side of the annular platform 37 facing the ear hook 10, so that the housing sheath 17 can fully cover the joint seam of the two sub-housings, thereby sealing the internal space of the circuit housing 30 to a certain extent and improving the waterproof effect of the bone conduction speaker.

[0135] In another application scenario, the annular platform 37 of the circuit housing 30 can also be formed by two sub-housings, such that at least a portion of the two sub-housings are joined on the side of the annular platform 37 opposite to the ear hook 10. In this case, the housing sheath 17 cannot cover the joint seam of the two sub-housings on the side of the annular platform 37 opposite to the ear hook 10. In this application scenario, this joint seam can be further covered by other methods.

[0136] Furthermore, in one embodiment, the mating surfaces of the two sub-shells that abut each other are stepped in shape.

[0137] Specifically, the end face of the first sub-shell 301 facing the second sub-shell 302 is a stepped first stepped surface 3011, and the end face of the second sub-shell 302 facing the first sub-shell 301 is a stepped second stepped surface 3021. The first stepped surface 3011 and the second stepped surface 3021 have the same shape and size, so that they can fit together and abut against each other.

[0138] In this way, the mating surfaces of the two sub-shells of the circuit housing 30 are stepped and not on the same plane, which can prevent liquid outside the circuit housing 30 from entering the interior of the circuit housing 30 from the periphery, thereby further improving the waterproof effect of the bone conduction speaker and protecting the control circuit 60 or battery 70 inside the circuit housing 30.

[0139] Furthermore, a mounting hook 3022 facing the first sub-shell 30a is provided on the second stepped surface 3021 of the second sub-shell 302. Correspondingly, a mounting groove 3012 matching the mounting hook 3022 is provided inside the first sub-shell 301. When the first sub-shell 301 and the second sub-shell 302 are installed, the mounting hook 3022 can be pushed over the outer side wall of the mounting groove 3012 by external force and enter the mounting groove 3012, so that the hook part of the mounting hook 3022 engages with the inner side wall of the mounting groove 3012, thereby realizing the fastening of the first sub-shell 301 and the second sub-shell 302.

[0140] In one embodiment, the bone conduction speaker is further provided with a button mechanism.

[0141] Specifically, a first recessed area 341 is provided on the outer surface of the auxiliary sidewall 34 of the circuit housing 30, and a key hole 342 is further provided in the first recessed area 341, which connects the outer surface and the inner surface of the auxiliary sidewall 34.

[0142] The auxiliary sidewall 34 of the circuit housing 30 may include an auxiliary sidewall 34 facing the back of the user's head when the user wears the bone conduction speaker, or an auxiliary sidewall 34 facing the lower side of the user's head when the user wears it.

[0143] The number of first recessed areas 341 can be one or more, and each first recessed area 341 can be provided with one or more button holes 342. The specific settings can be made according to actual needs, and no specific limitation is made here.

[0144] In this embodiment, the bone conduction speaker further includes an elastic pad 82, a button 83, and a control circuit 60 including a button circuit board 61.

[0145] The elastic gasket 82 is disposed in the first recessed area 341 and is specifically fixed to the outer surface of the auxiliary sidewall 34 corresponding to the first recessed area 341, so as to cover the outside of the key hole 342 and prevent external liquid from entering the interior of the circuit housing 30 through the key hole 342, thereby playing a role in sealing and waterproofing.

[0146] Furthermore, the elastic pad 82 is provided with a second recessed area 821 corresponding to the button hole 342, and the second recessed area 821 extends into the interior of the button hole 342.

[0147] Specifically, the elastic pad 82 can be made of a soft material, such as soft silicone or rubber. Furthermore, the elastic pad 82 is relatively thin, making it difficult to bond firmly when directly adhered to the outer surface of the auxiliary sidewall 34.

[0148] Therefore, in one embodiment, a rigid pad 84 can be further provided between the elastic pad 82 and the circuit housing 30. The rigid pad 84 and the elastic pad 82 are attached and fixed to each other, which can be achieved by bonding, adhesive bonding, injection molding, etc. The rigid pad 84 is further bonded to the auxiliary sidewall 34, specifically by using double-sided adhesive to form an adhesive layer between the rigid pad 84 and the auxiliary sidewall 34, so that the elastic pad 82 can be firmly fixed to the outer surface of the auxiliary sidewall 34. Moreover, since the elastic pad 82 is soft and thin, it is difficult to keep it flat when the user presses the button. However, by attaching and fixing it to the rigid pad 84, the elastic pad 82 can be kept flat.

[0149] Furthermore, the rigid pad 84 is provided with a through hole 841 that allows the second recessed area 821 to pass through, thereby enabling the second recessed area 821 of the elastic pad 82 to extend further into the interior of the button hole 342 through the through hole 841.

[0150] Specifically, the rigid gasket 84 can be made of stainless steel or other rigid materials, such as plastic or other hard materials. It can be integrally molded and attached to the elastic gasket 82.

[0151] Additionally, button 83 includes a button body 831 and a button contact 832 protruding from one side of the button body 831. The button body 831 is located on the side of the elastic pad 82 away from the circuit housing 30, and the button contact 832 extends into the second recessed area 821, extending into the button hole 342 along with the second recessed area 821.

[0152] Furthermore, since the bone conduction speaker device in this embodiment is relatively thin and light, and the pressing stroke of button 83 is short, using a soft button would reduce the user's pressing feel and lead to a poor experience. In this embodiment, button 83 can be made of a rigid plastic material to provide a good tactile feel when pressed.

[0153] Furthermore, the button circuit board 61 is disposed inside the circuit housing 30, and a button switch 611 corresponding to the button hole 342 is disposed thereon. Thus, when the user presses the button, the button contact 832 contacts and triggers the button switch 611 to further realize the corresponding function.

[0154] In this embodiment, by providing a second recessed area 821 on the elastic pad 82, on the one hand, the second recessed area 821 can cover the entire key hole 342, thereby improving the waterproof effect; on the other hand, in the natural state, the key contact 832 can extend into the key hole 342 through the second recessed area 821, thereby shortening the key pressing stroke and reducing the space occupied by the key structure, so that the bone conduction speaker can have both good waterproof performance and occupy less space.

[0155] In one embodiment, button 83 may include button unit 833, and the number of button units 833 may be one or more.

[0156] In one application scenario, button 83 may include at least two button units 833 spaced apart from each other and a connecting portion 834 for connecting the button units 833. Multiple button units 833 and connecting portions 834 may be integrally formed. Correspondingly, each button unit 833 is provided with a button contact 832, and further corresponds to a button hole 342 and a button switch 611.

[0157] In other words, in this embodiment, multiple button units 833 can be provided corresponding to a first recessed area 341. Users can trigger different button switches 611 by pressing different button units 833, thereby realizing a variety of functions.

[0158] Furthermore, the elastic pad 82 may be provided with an elastic protrusion 822 for supporting the connecting part 834. Since the button 83 includes multiple button units 833 connected together, the provision of the elastic protrusion 822 allows the user to press one button unit 833 individually, avoiding the situation where other button units 833 are pressed simultaneously through linkage, thereby accurately triggering the corresponding button switch 611. It should be noted that the elastic protrusion 822 is not necessary; for example, it can also be a non-elastic protrusion structure, or the protrusion structure can be omitted, depending on the actual situation.

[0159] In one embodiment, the inner wall of the housing sleeve 17 is provided with a groove 174 corresponding to the button, so that it can be fitted around the circuit housing 30 and the button in a sleeve manner.

[0160] In one embodiment, the bone conduction speaker further includes at least one conductive post 85, and the control circuit 60 housed inside the circuit housing 30 also includes a main control circuit board 62. The conductive post 85 can be used to connect the main control circuit board 62 inside the circuit housing 30 and the charging circuit and / or data transmission line outside the circuit housing 30, so as to charge and / or transmit data to the bone conduction speaker.

[0161] Accordingly, at least one mounting hole 331 is provided on the main sidewall 33 of the circuit housing 30, and the conductive post 85 can be inserted into the corresponding mounting hole 331. The conductive post 85 and the mounting hole 331 can be one-to-one. In this embodiment, there are four conductive posts 85 and four mounting holes 331, with the four conductive posts 85 inserted into their respective mounting holes 331, arranged side-by-side in a straight line and evenly spaced. The two outer conductive posts 85 can serve as charging interfaces, while the two middle conductive posts 85 can serve as data transmission interfaces. Of course, the conductive posts 85 and the mounting holes 331 can also be arranged in other ways, which are not specifically limited here.

[0162] The conductive post 85 may include a columnar body 851 inserted into the mounting hole 331. A positioning boss 852 is provided on the outer peripheral surface of the columnar body 851. The positioning boss 852 can be used to engage with the inner surface of the main sidewall 33, thereby fixing the conductive post 85 to the mounting hole 331.

[0163] Specifically, the positioning boss 852 can be arranged in a ring around the circumference of the columnar body 851. Further, an extension inclined surface 853 connecting the outer circumferential surface of the columnar body 851 and the positioning boss 852 is provided on the side of the annular positioning boss 852 facing the inside of the circuit housing 30. When installing the conductive post 85, the conductive post 85 is gradually inserted into the mounting hole 331 from the outside of the circuit housing 30 along the extension inclined surface 853 and then into the inside of the circuit housing 30, and then through the positioning boss 852. After the positioning boss 852 has completely passed through the mounting hole 331, the platform of the positioning boss 852 facing the outside of the circuit housing 30 engages with the inner surface of the main side wall 33, thereby fixing the conductive post 85 in the mounting hole 331.

[0164] In the above-described manner, the positioning boss 852 allows the conductive post 85 to be inserted into the mounting hole 331 from the outer surface of the main sidewall 33 of the circuit housing 30 during assembly. The positioning boss 852 can then be pressed into the mounting hole 331, thus engaging and fixing with the inner surface of the main sidewall 33 of the circuit housing 30, eliminating the need for installation from inside the circuit housing 30. This makes the assembly of the bone conduction speaker more convenient and improves production assembly efficiency. Furthermore, the extension ramp 853 allows the positioning boss 852 to pass through the mounting hole 331 more smoothly during assembly. The positioning boss 852 ensures that the conductive post 85 engages with the inner surface of the main sidewall 33 when it enters the mounting hole 331, preventing it from easily sliding out of the hole, thus securely fixing the conductive post 85 within the mounting hole 331.

[0165] Specifically, in one embodiment, the columnar body 851 is divided into a first columnar body 8511 and a second columnar body 8512 along the insertion direction of the columnar body 851 relative to the mounting hole 331. Both can be integrally formed from a conductive metal material, such as copper, silver, or an alloy. In the insertion direction perpendicular to the insertion of the conductive post 85 into the mounting hole 331, the cross-section of the first columnar body 8511 can be larger than the cross-section of the second columnar body 8512. A positioning boss 852 can be provided on the second columnar body 8512.

[0166] Accordingly, the mounting hole 331 is divided along the insertion direction into a first hole segment 3311 and a second hole segment 3312 with cross sections corresponding to the first columnar body 851 and the second columnar body 851. Then, an annular platform 3313 is formed at the connection between the first hole segment 3311 and the second hole segment 3312, wherein the annular platform 3313 is in communication with the outer surface of the main sidewall 33.

[0167] Furthermore, when the columnar body 851 is inserted into the mounting hole 331, the side of the first columnar body 8511 facing the second columnar body 8512 is supported on the annular platform 3313. At the same time, the positioning boss 852 on the outer circumferential surface of the second columnar body 8512 is engaged with the inner surface of the main sidewall 33 on the side facing the first columnar body 8511. This engages the conductive post 85 from both the inner and outer sides of the main sidewall 33 around the mounting hole 331, thereby fixing the conductive post 85 in the mounting hole 331.

[0168] In one embodiment, the columnar body 851 is provided with a receiving cavity 8513 along the axial direction, and the opening end of the receiving cavity 8513 is on the end face of the second columnar body 8512 facing the interior of the circuit housing 30. Specifically, the receiving cavity 8513 can extend parallel to the insertion direction to the portion of the second columnar body 8512 located inside the circuit housing 30, and terminate before reaching the positioning boss 852. Of course, in other embodiments, the specific position of the receiving cavity 8513 can be set according to needs, and is not limited here.

[0169] Furthermore, the conductive post 85 includes a spring 854 disposed within the accommodating cavity 8513 and a conductive contact 855. One end of the conductive contact 855 can abut against the spring 854 inside the accommodating cavity 8513, while the other end protrudes from the opening end of the accommodating cavity 8513 into the interior of the circuit housing 30. The conductive contact 855 can be made of the same material as the columnar body 851. The spring 854 can be connected to the second columnar body 851 and the conductive contact 855 by means such as bonding or welding, or it can be directly placed inside the accommodating cavity 8513 and elastically held inside the accommodating cavity 8513 by the engagement of the columnar body 851 with the main sidewall 33 of the circuit housing 30 and the abutment of the conductive contact 855 with the main control circuit board 62.

[0170] Furthermore, the main control circuit board 62 inside the circuit housing 30 is provided with contacts 621 corresponding to the positions of the conductive posts 85, specifically as follows: Figure 7 As shown. Specifically, the main control circuit board 62 includes a large main surface 622 and a smaller side surface 623 connected to the main surface 622. The main surface 622 of the main control circuit board 62 may be parallel or approximately parallel to the main side wall 33 of the circuit housing 30. The contact 621 is correspondingly disposed on the main surface 622 of the main control circuit board 62.

[0171] The conductive post 85 is inserted into the mounting hole 331 in a direction parallel to its axial direction and perpendicular to the main sidewall 33, which in turn is perpendicular to the main surface 622 of the main control circuit board 62. After the conductive post 85 is installed in the mounting hole 331, the spring 854 is elastically deformed by the clamping of the conductive contact 855 and the columnar body 851, so as to elastically press the conductive contact 855 onto the corresponding contact 621, thereby realizing the electrical connection between the conductive post 85 and the main control circuit board 62.

[0172] In one embodiment, the bone conduction speaker further includes an auxiliary piece 86 located inside the circuit housing 30.

[0173] The auxiliary piece 86 includes a plate 861 with a cutout area 8611. The plate 861 can be attached to the inner surface of the main sidewall 33 by means of hot melting, hot pressing, or bonding, such that the mounting hole 331 on the main sidewall 33 is located inside the cutout area 8611. Specifically, the plate surface of the plate 861 can be parallel to and abut against the inner surface of the main sidewall 33.

[0174] The auxiliary piece 86 has a certain thickness. After it is set on the inner surface of the main side wall 33, it together with the inner side wall of the hollow area 8611 of the auxiliary piece 86 and the main side wall 33 form a glue groove 87 located around the conductive post 85 inserted into the mounting hole 331.

[0175] Furthermore, sealant can be applied to the glue tank 87 to seal the mounting hole 331 from the inside of the circuit housing 30, thereby improving the airtightness of the circuit housing 30 and thus improving the waterproof performance of the bone conduction speaker.

[0176] The auxiliary piece 86 can be made of the same material as the circuit housing 30 and can be formed separately from the circuit housing 30. It should be noted that during the forming stage of the circuit housing 30, there are often other structures near the mounting hole 331, such as button holes 342. The molds corresponding to these structures may need to be removed from the inside of the circuit housing 30 during forming. If the glue groove 87 corresponding to the mounting hole 331 is integrally formed inside the circuit housing 30, the protrusion of the glue groove 87 may interfere with the smooth removal of the molds for these structures, thus causing inconvenience to production. In this embodiment, the auxiliary piece 86 and the circuit housing 30 are independent structures. After they are formed separately, the auxiliary piece 86 can be installed inside the circuit housing 30 to form the glue groove 87 together with the main sidewall 33 of the circuit housing 30. This prevents the molds of some structures from being removed from the inside of the circuit housing 30 during the forming stage, thus facilitating smooth production.

[0177] In one embodiment, when the circuit housing 30 is being molded, the mold exit only occupies a portion of the space occupied by the glue groove 87. Thus, a portion of the glue groove 87 can be integrally molded on the inner surface of the main sidewall 33 without affecting the demolding, while the other portion of the glue groove 87 can still be formed by the auxiliary piece 86.

[0178] Specifically, a first strip-shaped rib 332 is integrally formed on the inner surface of the main sidewall 33. The position of the first strip-shaped rib 332 does not affect the mold release of the circuit housing 30. A notch 8612 is provided in the hollow area 8611 of the auxiliary piece 86. The first strip-shaped rib 332 corresponds to the notch 8612. After the circuit housing 30 and the auxiliary piece 86 are formed, the auxiliary piece 86 can be placed on the inner surface of the main sidewall 33 so that the first strip-shaped rib 332 is at least partially fitted into the notch 8612. Then, the first strip-shaped rib 332 and the auxiliary piece 86 cooperate to make the glue groove 87 closed.

[0179] In this embodiment, since the first strip-shaped rib 332 does not obstruct the exit of the mold, the sidewall of the glue groove 87 can be formed by the first strip-shaped rib 332 integrally formed on the inner surface of the main sidewall 33 and the auxiliary piece 86.

[0180] Furthermore, in one embodiment, the first strip-shaped rib 332 extends further to abut against the side edge 8613 of the plate 861, thereby positioning the plate 861.

[0181] Specifically, the first strip-shaped rib 332 includes a rib body 3321 and a positioning arm 3322. The rib body 3321 is used to match and fit with the notch 8612 of the hollow area 8611, thereby forming the side wall of the glue groove 87. The positioning arm 3322 is further extended from one end of the rib body 3321 and extends to one side edge 8613 of the plate 861 to abut against the side edge 8613, thereby positioning the plate 861 at the side edge 8613.

[0182] The height of the first strip-shaped rib 332 protruding on the inner surface of the main side wall 33 can be greater than the thickness of the auxiliary piece 86. Of course, it can also be less than or equal to the thickness, as long as it can form the glue groove 87 together with the auxiliary piece 86 and play a positioning role for the plate body 861 of the auxiliary piece 86. No specific limitation is made here.

[0183] In one embodiment, a positioning hole 8614 is further provided on the plate 861, wherein the positioning hole 8614 passes through the main surface of the plate 861. Furthermore, a positioning post 333 corresponding to the positioning hole 8614 is integrally formed on the inner surface of the main sidewall 33. After the auxiliary piece 86 is placed on the inner surface of the main sidewall 33, the positioning post 333 is inserted into the positioning hole 8614, thereby further positioning the auxiliary piece.

[0184] The number of positioning holes 8614 and positioning pins 333 is the same; in this embodiment, there are two of each.

[0185] In one application scenario, the side edge 8613 of the plate 861 is formed with at least two lugs 8615, and two positioning holes 8614 can be respectively set on the corresponding lugs 8615.

[0186] Furthermore, a second strip-shaped rib 334 is integrally formed on the inner surface of the main sidewall 33. The second strip-shaped rib 334 can extend in the direction toward the auxiliary sidewall 34 and can be perpendicular to the extension direction of the positioning arm 3322 of the first strip-shaped rib 332.

[0187] Correspondingly, the plate body 861 is also provided with a strip-shaped positioning groove 8616 corresponding to the second strip-shaped protruding rib 334. The positioning groove 8616 is recessed in a direction away from the main side wall 33, and one end of it is connected to the side edge 8613 of the plate body 861 and can be set perpendicular to the side edge 8613.

[0188] In one application scenario, the positioning groove 8616 can be formed solely by a recess on the surface of the plate 861 that adheres to the main sidewall 33. The depth of the positioning groove 8616 is less than the thickness of the plate 861. In this case, the surface of the plate 861 that is opposite to the recessed surface is not affected by the positioning groove 8616. In another application scenario, the depth of the positioning groove 8616 is greater than the depth of the plate 861. This allows the opposite surface of the plate 861 to protrude in the direction of the recess when the surface of the plate 861 near the main sidewall 33 is recessed, thereby forming the positioning groove 8616.

[0189] Specifically, after the auxiliary piece 86 is placed on the inner surface of the main side wall 33, the second strip-shaped rib 334 is embedded in the strip-shaped positioning groove 8616 to further position the plate 861.

[0190] In one embodiment, the button circuit board 61 is perpendicular to the main control circuit board 62 and parallel to and spaced apart from the auxiliary sidewall 34 of the circuit housing 30. Specifically, as described above, the auxiliary sidewall 34 corresponding to the button mechanism may include two types: one is an auxiliary sidewall 34 facing the back of the user's head when the user wears the bone conduction speaker device, and the other is an auxiliary sidewall 34 facing the lower side of the user's head when the user wears it. In this embodiment, there may be two button circuit boards 61, which are respectively arranged parallel to and spaced apart from the two corresponding auxiliary sidewalls 34.

[0191] The button circuit board 61 can be disposed on the side of the auxiliary plate 861 facing the auxiliary sidewall 34. Further, the auxiliary plate 86 includes a pressing foot 862 protruding relative to the plate 861. Specifically, the pressing foot 862 protrudes along a direction perpendicular to the main surface of the plate 861 at the side edge of the plate 861 facing the auxiliary sidewall 34, and the number of pressing feet 862 can be one or more. In this embodiment, the pressing foot 862 can press the button circuit board 61 onto the inner surface of the auxiliary sidewall 34 through its side facing the auxiliary sidewall 34, thereby fixing the button circuit board 61.

[0192] In one embodiment, the main control circuit board 62 is spaced apart from the main sidewall 33, while the main surface of the auxiliary plate 86's plate body 861 is parallel to the main sidewall 33 and further spaced apart from the main control circuit board 62.

[0193] Specifically, the pressing foot 862 protrudes from the plate body 861 along the main sidewall 33 of the circuit housing 30 that is away from the auxiliary piece 86 and toward the main control circuit board 62, and extends to the plate surface of the main control circuit board 62 to press the main control circuit board 62, so that the main control circuit board 62 is supported on at least part of the pressing foot 862.

[0194] In one embodiment, the housing sleeve 17 is provided with an exposed hole 175 corresponding to the conductive post 85. After the housing sleeve 17 is fitted around the circuit housing 30, one end of the conductive post 85 located outside the circuit housing 30 is further exposed through the exposed hole 175, thereby connecting with the external circuit of the bone conduction speaker device, so that the bone conduction speaker device can supply power or transmit data through the conductive post.

[0195] Furthermore, the outer surface of the circuit housing 30 is recessed with a glue groove 39 surrounding a plurality of mounting holes 331. Specifically, the glue groove 39 may be elliptical, and the plurality of mounting holes 331 are respectively disposed on the circuit housing 30 surrounded by the elliptical glue groove 39.

[0196] In this embodiment, sealant is applied to the glue groove 39. After the housing sleeve 17 and the circuit housing 30 are assembled, the housing sleeve 17 can be sealed to the circuit housing 30 around the mounting hole 331 by the sealant. This prevents external liquid from entering the housing sleeve 17 through the exposed hole 175 and causing the housing sleeve 17 to slide around the circuit housing 30. Furthermore, it can seal the mounting hole 331 from the outside of the circuit housing 30, thereby further improving the airtightness of the circuit housing 30 and further improving the waterproof performance of the bone conduction speaker.

[0197] In one embodiment, the circuit housing 30 is further provided with a connector 3a at the end away from the ear hook 10, and the back hook 40 includes an elastic metal wire 41 and connectors 42 disposed at both ends of the elastic metal wire 41, wherein the connectors 3a and connectors 42 are connected and fixed to each other.

[0198] Since the headphone core 50 of the bone conduction speaker device is divided into two parts, left and right, the corresponding core housing 20, ear hook 10 and circuit housing 30 are also set to two parts, left and right. The back hook 40 connects the core housing 20, ear hook 10 and circuit housing 30 located on both sides by plugging and fixing them to the two circuit housings 30 respectively, and is suspended behind the user's head when the user wears it.

[0199] Specifically, the material and properties of the elastic metal wire 41 can be the same as those of the elastic metal wire 11. For details, please refer to the aforementioned description of the elastic metal wire 11, which will not be repeated here.

[0200] The connector 42 can be formed on both ends of the elastic metal wire 41 by injection molding. Specifically, the connector 42 can be made of materials such as plastic.

[0201] In one embodiment, the connector 42 is provided with a connector hole 421, and the connector 3a is at least partially inserted into the connector hole 421. In this embodiment, the connector 3a may be specifically located on the side of the annular platform 37 away from the ear hook 10. The connection method between the connector 3a and the connector hole 421 may be the same as or different from the connection method between the connector 15 and the connector hole 31.

[0202] Specifically, slots 3a1 are provided on opposite sides of the insertion end 3a, perpendicular to the insertion direction of the insertion end 3a relative to the insertion hole 421. The two slots 3a1 are spaced apart and symmetrically arranged on both sides of the insertion end 3a. Furthermore, both slots 3a1 can communicate with the corresponding sidewall of the insertion end 3a in a direction perpendicular to the insertion direction.

[0203] Accordingly, the first sidewall 422 of the insertion end 42 is provided with through holes 423 corresponding to the positions of the two slots 3a1. The insertion end 42 includes a circumferential sidewall for defining the insertion hole 421, and the first sidewall 422 of the insertion end 42 can be a sidewall of the insertion end 42 that can intersect the extension direction of the slot 3a1 when the insertion end 3a is inserted and fixed to the insertion end 42.

[0204] The bone conduction speaker further includes a fixing member 88, which includes two parallel pins 881 and a connecting portion 882 for connecting the pins 881. In this embodiment, the two pins 881 are arranged in parallel, and the connecting portion 882 can be vertically connected to the same side of the two pins 881, thereby forming a U-shaped fixing member 88 similar in shape to the fixing member 81.

[0205] It should be noted that the shape of the fastener 88 may be similar to that of the fastener 81, but the specific size parameters may vary depending on the surrounding structure. In this embodiment, the length of the pin 881 is greater than the length of the pin 811, and the length of the connecting part 812 is less than the length of the connecting part 882, etc., which are not specifically limited here.

[0206] Furthermore, the pin 881 can be inserted into the slot 3a1 from the outside of the connector 42 through the through hole 423, thereby blocking the connector 882 from the outside of the connector 3a, thus achieving the connection and fixation of the connector 42 and the connector 3a.

[0207] In the above manner, the fixing component 88 of the bone conduction speaker includes two parallel pins 881 and a connecting part 882 for connecting the pins 881, so that the fixing component 88 can be connected and fixed to the plug end 3a and the plug end 42 over a certain span, thereby making the fixation between the circuit housing 30 and the rear hanger 40 more stable and reliable; moreover, the fixing component 88 has a simple structure and is easy to insert and remove, so that the connection and fixation between the plug end 3a and the plug end 42 is detachable, and the assembly of the bone conduction speaker is more convenient.

[0208] Furthermore, in one embodiment, a through hole 425 opposite to the through hole 423 is further provided on the second side wall 424 of the connector 42 opposite to the first side wall 422, and the pin 881 is further inserted into the through hole 425 through the slot 3a1.

[0209] In this embodiment, the pin 881 is inserted into the slot 3a1 through the through hole 423, and further inserted into the through hole 425 through the slot 3a1. That is to say, the pin 881 can completely penetrate and connect the opposite side walls of the connector end 42 of the rear hanger 40 and the connector end 3a together, thereby making the connection between the circuit housing 30 and the rear hanger 40 more secure.

[0210] Specifically, in one embodiment, the plug end 3a is further divided into a first plug segment 3a2 and a second plug segment 3a3 along the insertion direction of the plug end 3a relative to the plug hole 421.

[0211] The connector 3a can be located at the end of the circuit housing 30 near an auxiliary sidewall 34. Specifically, the auxiliary sidewall 34 can be another auxiliary sidewall 34 opposite to the auxiliary sidewall 34 where the positioning block 38 is located in the above embodiment.

[0212] Furthermore, the first insertion segment 3a2 and the second insertion segment 3a3 may be arranged in a stepped manner on the side near the positioning block 38 along the insertion direction of the insertion end 3a relative to the insertion hole 421, so that the cross section of the first insertion segment 3a2 is larger than the cross section of the second insertion segment 3a3 in the cross section direction perpendicular to the insertion direction.

[0213] Accordingly, the insertion hole 421 is further divided into a first hole segment 4211 and a second hole segment 4212 along the insertion direction of the insertion end 3a relative to the insertion hole 421, with shapes respectively matching the first insertion segment 3a2 and the second insertion segment 3a3, so that when the insertion end 3a is inserted into the insertion hole 421, the first insertion segment 3a2 and the second insertion segment 3a3 are respectively inserted into the first hole segment 4211 and the second hole segment 4212.

[0214] Furthermore, the slot 3a1 can be provided on the first plug-in section 3a2. Specifically, the slot 3a1 can be extended along the direction from the plug-in end 3a to the positioning block 38, that is, the direction in which the two auxiliary side walls 34 of the circuit housing 30 are opposite to each other, thereby penetrating the two side walls of the first plug-in section 3a2 that are perpendicular to the main side wall 33 of the circuit housing 30, and further penetrating the two side walls of the first plug-in section 3a2 that are parallel to the main side wall 33 of the circuit housing 30 along the vertical insertion direction.

[0215] The through hole 423 provided on the connector 42 can correspond to the side of the slot 3a1 facing the positioning block 38, while the through hole 425 can correspond to the side of the slot 3a1 away from the positioning block 38.

[0216] Furthermore, in one embodiment, the top sides of the first connector segment 3a2 and the second connector segment 3a3 are coplanar. The top side of the first connector segment 3a2 and the second connector segment 3a3 refers to the side of the first connector segment 3a2 and the second connector segment 3a3 facing the top of the head when the user is wearing the bone conduction speaker normally, that is, the side opposite to the stepped shape formed by the first connector segment 3a2 and the second connector segment 3a3.

[0217] Furthermore, the top sides of the first connector segment 3a2 and the second connector segment 3a3 are coplanar and have a wiring groove 3a4 for accommodating wires. The wiring groove 3a4 can extend along the insertion direction of the connector end 3a and the connector hole 421, and can be used to accommodate wires that pass through the rear hanger 40 and connect the control circuit 60 and the battery 70.

[0218] In this embodiment, the connector 3a can be inserted into the connector hole 421 first, and then inserted into the slot 3a1 from the side of the first connector segment 3a2 facing the positioning block 38. Specifically, in this embodiment, the connector 3a is located on the side of the circuit housing 30 facing the rear hanger 40 away from the positioning block 38. Therefore, there is still a certain space on the side of the connector 3a facing the positioning block 38. Thus, when the circuit housing 30 and the rear hanger 40 are connected and installed, the fixing member 88 can be inserted from the bottom side of the connector 3a2, that is, the side of the first connector segment 3a2 facing the positioning block 38, through the through hole 423 into the slot 3a1 and then into the through hole 425, so as to realize the connection and fixation of the circuit housing 30 and the rear hanger 40. In this way, the fixing member 88 can be completely hidden in the internal space formed by the circuit housing 30 and the rear hanger 40 without being exposed, so as not to occupy additional space.

[0219] Furthermore, in one embodiment, the rear hanger 40 also includes a second protective sleeve 43 injection-molded around the elastic metal wire 41 and the insertion end 42, and an end protective cap 44 integrally formed with the second protective sleeve 43.

[0220] The materials of the second protective sleeve 43 and the end protective cover 44 can be the same as those of the protective sleeve 16 and the housing sheath 17. For example, they can all be soft materials with a certain degree of elasticity, such as soft silicone or rubber.

[0221] The end protective cap 44 can be formed at both ends of the elastic metal wire 41, and can be integrally formed with the plug end 42 located at both ends of the elastic metal wire 41 on the periphery of the plug end 42.

[0222] It should be noted that the housing sleeve 17 only wraps around the annular platform 37 of the circuit housing 30 from the end of the circuit housing 30 facing the ear hook 10. Therefore, the portion of the annular platform 37 of the circuit housing 30 facing the rear hook 40 is exposed outside the periphery of the housing sleeve 17. Furthermore, in this embodiment, the shape of the inner wall formed by the end protective cover 44 and the plug end 42 matches the shape of the exposed end of the circuit housing 30 to further cover the periphery of the exposed end of the circuit housing 30, and the end face of the end protective cover 44 facing the circuit housing 30 elastically abuts against the end face of the housing sleeve 17 facing the rear hook 40 to further provide a seal.

[0223] Furthermore, in one embodiment, the end of the circuit housing 30 exposed by the housing cover 17 is also provided with a key hole 342. Correspondingly, a key 83 is provided in the key hole 342, the end protective cover 44 covers the key 83, and a key receiving groove 441 for accommodating the key 83 is provided.

[0224] Specifically, the button holes 342 can be spaced out on the side of the connector 3a facing the positioning block 38, and the number of button holes 342 can be one or more, which can be determined according to the specific structure of the control circuit 60 inside the circuit housing 30 and the structure of the circuit housing 30 itself, and no specific limitation is made here.

[0225] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A bone conduction sound amplifier, characterized in that, include: The movement housing includes a main housing and a partition assembly. The partition assembly is located inside the main housing and connected to the main housing, thereby dividing the internal space of the main housing into a first accommodating space and a second accommodating space. A functional component, wherein the functional component is disposed within the first accommodating space; A wire for electrically connecting the functional component to an external circuit located outside the movement housing, wherein the wire is connected from the first accommodating space via a second accommodating space to the external circuit, and the second accommodating space is filled with sealant; The ear hook includes an elastic metal wire, a fixing sleeve, and connectors at both ends of the elastic metal wire. The fixing sleeve is used to fix the ear hook's wire to the elastic metal wire. The circuit housing, the mechanism housing and the circuit housing are respectively disposed at both ends of the ear hook. The circuit housing and the mechanism housing are respectively provided with a connector hole for receiving their respective connector ends. The connector ends that cooperate with the mechanism housing and the circuit housing are respectively provided with a first wiring channel and a second wiring channel for extending the wire along the first wiring channel and the second wiring channel.

2. The bone conduction speaker device according to claim 1, characterized in that, The second accommodating space is located near the connector hole.

3. The bone conduction speaker device according to claim 2, characterized in that, The main housing includes a peripheral sidewall and a bottom wall connected to one end face of the peripheral sidewall. The partition assembly includes a side partition connected to the peripheral sidewall at both ends and a bottom partition spaced apart from the bottom wall and connected to the peripheral sidewall and the side partition respectively. The bottom partition is provided with a wiring hole, and the side partition is provided with a wiring groove at its top edge away from the bottom wall.

4. The bone conduction speaker device according to claim 3, characterized in that, The partition assembly further includes an inner partition, which further divides the second accommodating space into two sub-accommodating spaces, and the bottom partition is provided with two wiring holes corresponding to the sub-accommodating spaces respectively.

5. The bone conduction speaker device according to claim 2, characterized in that, The insertion hole communicates with the outer end face of the movement housing, and a stop block is provided on the inner sidewall of the insertion hole. The insertion end includes: The insertion part is at least partially inserted into the insertion hole and abuts against the outer side surface of the stop block; Two elastic hooks are provided on the side of the insertion part facing the inside of the movement housing. The two elastic hooks can close together under the action of external thrust and the stop block, and after passing the stop block, they elastically return to being locked on the inner side of the stop block, thereby realizing the insertion and fixing of the movement housing and the insertion end.

6. The bone conduction speaker device according to claim 5, characterized in that, The insertion part is inserted into the connector hole, and the exposed part of the insertion part is stepped, thereby forming an annular platform spaced apart from the outer end face of the movement housing; The connector is injection molded at one end of the elastic metal wire facing the movement housing, and further includes a protective sleeve injection molded on the elastic metal wire and the periphery of the connector. The protective sleeve extends further to the side of the annular platform facing the outer end face of the movement housing, and elastically abuts against the movement housing when the movement housing and the connector are connected and fixed, thereby achieving a seal.

7. The bone conduction speaker device according to claim 6, characterized in that, The protective sleeve forms an annular abutment surface on the side of the annular platform facing the outer end face of the movement housing, and an annular boss located inside the annular abutment surface and protruding relative to the annular abutment surface. The movement housing further includes a connecting bevel for connecting the outer end face of the movement housing and the inner sidewall of the insertion hole; When the movement housing is connected and fixed to the connector end, the annular abutment surface and the annular boss elastically abut against the outer end face of the movement housing and the connecting inclined surface, respectively.

8. The bone conduction speaker according to claim 1, characterized in that, The ear hook is injection molded with a housing cover, which is fitted around the circuit housing in a sleeve manner; the housing cover is a bag-shaped interface with one open end, so that the circuit housing can enter the interior of the housing cover through the open end of the housing cover.

9. The bone conduction speaker device according to claim 8, characterized in that, The opening end of the housing sheath is provided with an inwardly protruding annular flange. The end of the circuit housing away from the ear hook is stepped, thus forming a first annular platform. When the housing sheath covers the periphery of the circuit housing, the annular flange abuts against the first annular platform. A sealant is applied to the joint area between the annular flange and the first annular platform to seal the connection between the housing sheath and the circuit housing.

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