Bone conduction earphone

Abstract

The invention discloses a bone conduction earphone, and relates to the technical field of earphones, and the bone conduction earphone comprises an earphone head and an ear hook. The earphone head comprises a shell assembly; the ear hook comprises a connecting ring wrapping the outer portion of the shell assembly, and the connecting ring is in a ring shape surrounding the outer portion of the shell assembly in a whole circle. The tubular connecting ring is connected with the shell assembly, the contact area between the connecting ring and the shell assembly is increased, the earphone head is not prone to falling off from the ear hook even if the earphone head is pulled due to the annular connecting mode, the connecting strength of the ear hook and the earphone head is improved, and in addition, due to the fact that a plug-in structure is not needed, the earphone head is not prone to falling off. And external liquid is not easy to invade from the joint of the ear hook and the earphone head, so that the waterproof effect can be effectively improved.

Description

[0001] Priority Information: This application claims the priority of a Chinese patent application with the application number 202420389753.5 filed on February 29, 2024, the entire content of which is incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of earphones, and particularly to a bone conduction earphone. Background Art

[0003] Bone conduction earphones generally include two bone conduction earphone heads, two functional chambers, a rear hook connected between the two chambers, and an ear hook connected between the bone conduction earphone head and the chamber. The two chambers usually have different functions. For example, one is a control chamber mainly used for control, and the other is a battery chamber mainly used for placing a battery.

[0004] Taking a bone conduction earphone head and a bone conduction earphone disclosed in a Chinese patent with the application number 202221455611.1 as an example, in the prior art, between the ear hook and the earphone head, they are usually connected by a plug-in structure and sealed with glue synchronously.

[0005] The above connection structure is more cumbersome during assembly and requires operations such as plugging and gluing. In addition, it is necessary to consider the waterproof problem at the connection after assembly. When the earphone head is pulled, gaps may occur at the plug-in position, affecting the waterproof effect.

[0006] Therefore, it is necessary to improve the prior art to overcome the above-mentioned defects in the prior art. Summary of the Invention

[0007] The purpose of the present invention is to provide a bone conduction earphone with better sealing performance at the connection between the ear hook and the bone conduction earphone head.

[0008] To achieve the above-mentioned invention purpose, the present invention provides a bone conduction earphone, including:

[0009] An earphone head, including a housing assembly; and,

[0010] An ear hook, including a connection ring covering the outside of the housing assembly, and the connection ring is in a ring shape surrounding the outside of the housing assembly in a whole circle.

[0011] Further, an annular groove is provided on the outer periphery of the housing assembly, and the connection ring is embedded in the annular groove.

[0012] Further, the housing assembly includes a contact surface for contacting the human face skin when the bone conduction earphone is worn, a back surface facing away from the face, and an outer peripheral surface located between the contact surface and the back surface, and the connection ring is correspondingly arranged with the outer peripheral surface.

[0013] Further, the connecting ring is injection-molded or compression-molded in the annular groove.

[0014] Further, a concave first sub-groove is provided on the groove bottom surface of the annular groove, and the connecting ring is provided with a first embedding portion embedded in the first sub-groove; and / or,

[0015] A concave second sub-groove is provided on the inner surface of the connecting ring, and the housing assembly is provided with a second embedding portion embedded in the second sub-groove.

[0016] Further, the first sub-groove and the second embedding portion are respectively located at two ends of the annular groove.

[0017] Further, the ratio range of the width of the connecting ring to the thickness of the housing assembly is 0.2 to 0.8.

[0018] Further, the housing assembly includes a face cover, a back cover, and a tubular middle shell connected between the face cover and the back cover. The connecting ring is coated on the outer surface of the middle shell and covers the seam between the face cover, the back cover, and the middle shell.

[0019] Further, the middle shell is recessed into the face cover and the back cover, and an annular groove for accommodating the connecting ring is formed between the face cover, the back cover, and the middle shell.

[0020] Further, the middle shell further includes a protruding connecting portion. The earhook is internally provided with an elastic metal wire and a wire. One end of the elastic metal wire is connected to the connecting portion, and one end of the wire extends into the housing assembly from the connecting portion. The earhook also covers the connecting portion.

[0021] Further, the bone conduction earphone further includes a housing. The earhook includes a covering body covering the outside of the housing and an arc-shaped body connected between the covering body and the connecting ring.

[0022] Further, the housing includes a main body, a first corner portion and a second corner portion protruding from an end of the main body close to the housing assembly. The first corner portion and the second corner portion extend obliquely upward and obliquely downward toward the side where the housing assembly is located respectively. The earhook is internally provided with an elastic metal wire and a wire. One end of the elastic metal wire is connected to the first corner portion, and one end of the wire extends into the housing from the first corner portion. The covering body covers the first corner portion and the second corner portion, and the arc-shaped body is correspondingly arranged with the first corner portion.

[0023] Further, a part of the covering body is embedded in the housing;

[0024] The housing is provided with an embedding groove, and the covering body is arranged in the embedding groove.

[0025] Further, the covering body includes a first covering sleeve covering the first corner portion, a second covering sleeve covering the second corner portion, and a sheet body extending to the outer surface of the main body facing outward when the bone conduction headset is worn.

[0026] Further, a boss is provided at the second corner portion, and the covering body covers the boss;

[0027] A groove is provided on the groove bottom surface of the embedding groove, and the sheet body includes an embedding block embedded into the groove.

[0028] Further, the main body is in a long strip shape, the sheet body extends along the length direction of the main body, and extends to at least more than half of the length of the bin body.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In this application, the ear hook includes a connecting ring covering the outside of the housing assembly of the earphone head, and is connected to the housing assembly through the annular connecting ring, which is beneficial to increasing the contact area between the ear hook and the housing assembly, improving the connection strength between the ear hook and the earphone head. In addition, since there is no need to use a plug-in structure, external liquid is not easy to invade from the docking part of the ear hook and the earphone head, so the waterproof effect can be effectively improved. Description of the Drawings

[0031] Figure 1 is a three-dimensional schematic diagram of a bone conduction headset in an embodiment of the present invention.

[0032] Figure 2 is a three-dimensional schematic diagram of an ear hook, a bin body and an earphone head connected in an embodiment of the present invention.

[0033] Figure 3 is a structural schematic diagram of an earphone head in an embodiment of the present invention.

[0034] Figure 4 is a cross-sectional view of an earphone head and a connecting ring in an embodiment of the present invention

[0035] Figure 5 is a cross-sectional view of an earphone head in an embodiment of the present invention.

[0036] Figure 6 is a structural schematic diagram of an ear hook in an embodiment of the present invention.

[0037] Figure 7 is Figure 5 an enlarged view of part I in

[0038] Figure 8 is Figure 5 an enlarged view of part II in

[0039] Figure 9 It is an exploded view of the ear hook and the housing body in an embodiment of the present invention.

[0040] Figure 10 It is a schematic diagram of the positions of the elastic metal wire, the wire, the housing body, and the outer shell assembly in an embodiment of the present invention.

[0041] Figure 11 It is a schematic diagram of the housing body in an embodiment of the present invention.

[0042] Figure 12 It is a schematic diagram of the connection between the ear hook, the housing body, and the earphone head in an embodiment of the present invention.

[0043] Figure 13 It is along Figure 11 The cross-sectional view taken along the B-B cutting line in

[0044] Figure 14 It is along Figure 12 The cross-sectional view taken along the C-C cutting line in

[0045] Figure 15 It is Figure 14 The enlarged view of part III in

[0046] Figure 16 It is a perspective view of the housing body in an embodiment of the present invention.

[0047] Figure 17 It is a cross-sectional view of the connection between the ear hook, the housing body, and the earphone head in an embodiment of the present invention. Detailed implementation manners

[0048] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Additionally, it should be noted that for the sake of convenience of description, only the parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0049] The terms "including" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.

[0050] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0051] like Figures 1 to 17 As shown, the present application proposes a bone conduction earphone, which includes an earphone head 1 and an ear hook 2.

[0052] The earphone head 1 includes a housing component 10, and the ear hook 2 includes a connecting ring 20 wrapped around the outside of the housing component 10, and the connecting ring 20 is in a ring shape that completely surrounds the outside of the housing component 10. The tubular connecting ring 20 is connected to the housing component 10, which is conducive to increasing the contact area between the connecting ring 20 and the housing component 10, thereby improving the connection strength between the ear hook 2 and the earphone head 1. In addition, since there is no need to use a plug-in structure, external liquid is not easy to invade from the joint between the ear hook and the earphone head, so the waterproof effect can be effectively improved, and the sealing of the connection between the ear hook 2 and the earphone head 1 can be enhanced.

[0053] The shell component 10 includes a contact surface 10a for contacting the human facial skin when the bone conduction earphone is worn, a back surface 10b facing away from the face, and an outer peripheral surface 10c located between the contact surface 10a and the back surface 10b. The connecting ring 20 is arranged on the outer peripheral surface 10c and is arranged corresponding to the outer peripheral surface 10c. In this way, the connecting ring 20 will not block the contact surface 10a, which facilitates the earphone head 1 to transmit vibration to the human facial skin. Furthermore, since the connecting ring 20 holds the shell component 10 in a ring-shaped manner, the earphone head 1 is not easy to fall off the ear hook 2 even if the earphone head 1 is pulled, which effectively improves the reliability of the connection between the ear hook 2 and the earphone head 1. In addition, a mechanical key (button) or a pressure-sensitive key or an indicator light or other devices can be set at the position corresponding to the back surface 10b of the earphone head 1. The connecting ring 20 does not block the back surface 10b and will not hinder the setting and normal use of these devices.

[0054] In some embodiments, an annular groove 100 is provided on the outer periphery of the housing component 10. Figure 4 and Figure 5 In the illustrated embodiment, the annular groove 100 is provided on the outer peripheral surface 10c, and the connecting ring 20 is embedded in the annular groove 100. Since the connecting ring 20 is embedded in the annular groove 100, the connecting ring 20 can be limited by the annular groove 100 to prevent it from being separated from the annular groove 100, thereby further improving the reliability of the connection between the connecting ring 20 and the housing assembly 10. Optionally, the outer surface of the connecting ring 20 and the housing assembly 10 located outside the annular groove 100 is flush, so as to improve the aesthetics of the product and the comfort of use.

[0055] The ear hook 2 can be integrally formed with the housing assembly 10 by injection molding. For example, the housing assembly 10 is placed in a mold, and then the ear hook 2 is injection-molded outside the housing assembly 10. At this time, the connecting ring 20 is integrally formed in the annular groove 100 by injection molding. The material of the ear hook 2 can be, for example, silicone. It can be understood that the ear hook 2 can also be integrally formed with the housing assembly 10 by other methods, such as compression molding. At this time, the connecting ring 20 is integrally formed in the annular groove 100 by compression molding.

[0056] Optionally, the axis of the connecting ring 20 is parallel to the vibration direction of the earphone head 1. A vibration device 12 is provided in the earphone head 1, and the vibration direction of the earphone head 1 is the vibration direction S of the vibration device 12.

[0057] In some embodiments, the connecting ring 20 and the housing assembly 10 are staggered to improve the connection effect between the connecting ring 20 and the housing assembly 10. Optionally, a part of the connecting ring 20 is embedded in the bottom surface 1000 of the groove and / or a part of the housing assembly 10 is embedded in the connecting ring 20. As Figure 7 and Figure 8 shown, the bottom surface 1000 of the annular groove 100 is provided with a concave first sub-groove 1001, the connecting ring 20 is provided with a first embedding portion 200 embedded in the first sub-groove 1001, the inner surface of the connecting ring 20 is provided with a concave second sub-groove 1002, and the housing assembly 10 is provided with a second embedding portion 1031 embedded in the second sub-groove 1002. The first embedding portion 200 and the second embedding portion 1031 form a stepped structure, which is beneficial to improving the connection strength between the connecting ring 20 and the housing assembly 10 and the limiting effect of the housing assembly 10 on the connecting ring 20. Optionally, the sub-groove 1001 is annular or partially annular.

[0058] Figure 7 and Figure 8 In the embodiment shown, the first sub-groove 1001 and the second embedding portion 1031 are respectively located at both ends of the annular groove 100, and the number of each is one. In other embodiments, the number of the first sub-groove 1001 and the second embedding portion 1031 can be multiple, and their positions can also change.

[0059] The housing assembly 10 is formed by connecting multiple shells. For example, it can be formed by connecting two shells, three shells, or more shells. The connecting ring 20 is arranged to cover the seam between adjacent two shells to improve the waterproof effect.

[0060] Optionally, referring to Figure 5, the ratio range of the width B of the connecting ring 20 to the thickness H of the housing assembly 10 is 0.2 to 0.8, so that the connecting ring 20 has good structural performance and ensures the reliability of the connection with the housing assembly 10. The width B of the connecting ring 20 refers to the width at its narrowest part, and the thickness H of the housing assembly 10 refers to the maximum value of the distance between the contact surface 10a and the back surface 10b. Further optionally, the ratio range of the width B of the connecting ring 20 to the thickness H of the housing assembly 10 is 0.4 to 0.6 to further ensure the reliability of the connection. Optionally, the range of the width B of the connecting ring 20 is 3.1 mm to 10.2 mm, and its width dimension is more appropriate, neither too narrow nor too wide.

[0061] In some embodiments, such as Figure 4 and Figure 5 shown, the housing assembly 10 includes a face cover 101, a back cover 102, and a middle shell 103 connected between the face cover 101 and the back cover 102. The middle shell 103 is tubular, and its two open ends are respectively sealed by the face cover 101 and the back cover 102. The above-mentioned contact surface 10a and back surface 10b are respectively provided on the face cover 101 and the back cover 102. The connecting ring 20 is wrapped around the outer surface of the middle shell 103 and covers the seam 104 at the connection between the face cover 101, the back cover 102, and the middle shell 103. The middle shell 103 is recessed into the face cover 101 and the back cover 102, and an annular groove 100 for accommodating the connecting ring 20 as described above is formed between the face cover 101, the back cover 102, and the middle shell 103. As Figure 7 and Figure 8 shown, the two ends of the connecting ring 20 are respectively abutted and fitted against the first end face 101a of the face cover 101 and the second end face 102a of the back cover 102 to seal the seam 104.

[0062] The middle shell 103 further includes a connecting portion 1030 protruding outward from its outer surface. Optionally, the connecting portion 1030 extends along a direction perpendicular to the axial direction of the middle shell 103. As Figure 9 and Figure 10 shown, the earhook 2 also wraps around the connecting portion 1030. A wire 24 and an elastic metal wire 23 are arranged inside the earhook 2. The wire 24 passes through the connecting portion 1030 from inside the earhook 2 and penetrates into the housing assembly 10 to be electrically connected to the electrical components inside the housing assembly 10. Figure 10 shows the situation where the first end 24a of the wire 24 is located inside the housing assembly 10. Since the earhook 2 wraps around the connecting portion 1030, the wire 24 is completely wrapped, effectively improving the waterproof effect. One end of the elastic metal wire 23 is arranged inside the connecting portion 1030 and is connected to the connecting portion 1030. Optionally, the middle shell 103 and its connecting portion 1030 are connected to the end of the elastic metal wire 23 by injection molding.

[0063] Optionally, the first sub-groove 1001 and the second embedding part 1031 described above are respectively located on the upper and lower sides of the connecting part 1030.

[0064] The material of the elastic metal wire 23 can be, for example, a single metal element, or an alloy material including multiple metal materials, such as aluminum alloy, magnesium alloy, titanium alloy, spring steel, etc., or a composite material including metal materials and non-metal materials. Preferably, the material of the elastic metal wire 23 is titanium wire. The material of the earhook 2 can be, for example, silica gel or plastic.

[0065] When the housing assembly 10 is formed by connecting two shells, the annular groove 100 can also be provided on one of the shells, or formed by the cooperation of the two shells. At this time, the connecting part 1030 is also located on one of the shells. For example, the middle shell 103 and the back cover 102 or the front cover 101 can be integrally formed.

[0066] As Figure 2 and Figure 9 shown, the bone conduction headphone further includes a housing 3. The earhook 2 includes a covering body 21 covering the outside of the housing 3 and an arc body 22 connected between the covering body 21 and the connecting ring 20. The connection to the housing 3 is achieved by covering the housing 3 with the covering body 21, without the need to connect to the housing 3 through a plug-in structure, which simplifies the structure and avoids the problem of insufficient waterproof performance at the plug-in structure, and is beneficial to improving the waterproof effect. The arc body 22 is used to hook on the human ear when the bone conduction headphone is worn, and it can provide a certain elastic force. The housing 3 can be a control housing containing a circuit board or a battery housing containing a battery, or can contain both a battery and a circuit board at the same time.

[0067] In some embodiments, a part of the covering body 21 is embedded in the housing 3 to improve the connection effect between the earhook 2 and the housing 3. Further, the arc body 22 is correspondingly arranged at the upper end of the housing 3 facing the headphone head 1, and the covering body 21 covers the lower end of the housing 3 facing the headphone head 1.

[0068] As Figure 9 and Figure 11 shown, the housing 3 includes a main body 30 and a first corner 31 and a second corner 32 protruding from the main body 30. The first corner 31 and the second corner 32 extend in different directions. Optionally, as Figure 10 shown, the first corner 31 and the second corner 32 are respectively located at the upper and lower ends of the housing 3 facing the headphone head 1, and extend and protrude obliquely upward and obliquely downward toward the side where the housing assembly 10 is located. The covering body 21 covers the first corner 31 and the second corner 32. Specifically, refer to Figure 11, the covering body 21 includes a first covering sleeve 210 covering the first corner 31 and a second covering sleeve 211 covering the second corner 32 to improve the connection strength. It should be noted that by covering the second corner 32 with the covering body 21, it can effectively prevent the earhook 2 and the housing 3 from detaching due to pulling.

[0069] As Figure 10 shown, one end of the elastic metal wire 23 is disposed within the first corner 31 and is connected to the first corner 31. The wire 24 extends from the earhook 2 through the first corner 31 into the housing 3 and is electrically connected to the electrical components within the housing 3. Figure 10 The situation where the second end 24b of the wire 24 is located within the housing 3 is shown. Since the wire 24 is completely covered by the earhook 2, the housing 3, and the earphone head 1, the overall waterproof effect is better.

[0070] Similarly, the connection of the earhook 2, the elastic metal wire 23, the wire 24, the housing 3, and the earphone head 1 can be completed by injection molding. For example, in some embodiments, the elastic metal wire 23 and the wire 24 can be positioned within the mold first, and then the shells of the earphone head 1 and the housing 3 are injection molded at both ends of the elastic metal wire 23 and the wire 24. Then, the integrally injection molded elastic metal wire 23, the wire 24, and the shells at their two ends are positioned within the mold, and a cortex covering the elastic metal wire 23, the wire 24, and a part of the shell is injection molded outside to form the earhook 2. The precision of the injection molded product is higher and the consistency is better than that of the product assembled later, which is beneficial to ensuring the quality of the product.

[0071] In some embodiments, as Figures 11 to 14 shown, the housing 3 is provided with an embedding groove 33, and the covering body 21 is disposed within the embedding groove 33 and can be limited by the embedding groove 33. Optionally, the surfaces of the covering body 21 and the housing 3 outside the embedding groove 33 are smoothly transitioned, which can make the appearance of the product more beautiful and the use more comfortable. Moreover, the risk of the covering body 21 being accidentally pried open can be reduced.

[0072] In some embodiments, as Figure 16 and Figure 17 shown, the second corner 32 is provided with a boss 320, and the covering body 21 covers the boss 320, which can improve the limiting effect. Optionally, the cross-section of the boss 320 is non-circular to prevent the covering body 21 from rotating relative to the second corner 32.

[0073] In some embodiments, as Figures 9 to 12As shown, the covering sleeve 21 further includes a sheet body 212 extending to the outer surface of the main body 30 facing outward when the bone conduction earphone is worn. The sheet body 212 fits with the main body 30, increasing the contact area with the main body 30 and improving the connection strength. Optionally, the main body 30 is in a long strip shape, and the sheet body 212 extends along the length direction A of the main body 30 and extends to at least more than half of the maximum length L of the bin body 3. Further optionally, it is greater than two-thirds of the maximum length L.

[0074] In some embodiments, a groove 4 is provided on the groove bottom surface 330 of the embedding groove 33. The sheet body 212 includes an embedding block 213 embedded in the groove 4. Through the cooperation of the groove 4 and the embedding block 213, the connection force between the covering body 21 and the embedding block 213 can be further improved. Optionally, the groove 4 is a blind hole and is not connected to the inside of the bin body 3.

[0075] In some embodiments, the bin body 3 includes a first shell 34 and a second shell 35 connected to each other. One end of the first shell 34 along the thickness direction of the bin body 3 is open, and the second shell 35 seals the opening. The above-mentioned first corner 31, second corner 32 and embedding groove 33 are all provided on the first shell 34 and not on the second shell 35. In this way, during molding, the first shell 34 and the middle shell 103 can be first formed at the ends of the elastic metal wire 23 and the wire 24, and then the second shell 35 is covered on the open end of the first shell 34, and the face cover 101 and the back cover 102 are connected to both ends of the middle shell 103, which is convenient for assembly.

[0076] Figure 1 The shown bone conduction earphone includes two earphone heads 1, two ear hooks 2, two bin bodies 3 and a rear hook 5. The ear hooks 2 are connected between the earphone heads 1 and the bin bodies 3, and the rear hook 5 is connected between the two bin bodies 3. Optionally, among the two bin bodies 3, one is a control bin containing a main control circuit board, mainly used for controlling the earphone, and the other is a battery bin containing a battery 36, mainly used for power supply. It can be understood that in other embodiments, the bone conduction earphone can also be a single-ear earphone. For example, it can only include one earphone head 1 and an ear hook 2 or only include one earphone head 1, one ear hook 2 and one bin body 3. The connection structure between the earphone head 1 and the ear hook 2 and / or the connection structure between the earphone head 1 and the bin body 3 can use the above-mentioned structure.

[0077] The above is only the specific implementation manner of the present invention, and any improvement made on the premise of the present invention concept is regarded as the protection scope of the present invention.

Claims

1. A bone conduction headset, characterized in that, Comprising: An earphone head (1), including a housing assembly (10); And An ear hook (2), including a connecting ring (20) wrapped around the outside of the housing assembly (10), and the connecting ring (20) is in a ring shape that surrounds the outside of the housing assembly (10) in a complete circle.

2. The bone conduction earphone according to claim 1, wherein An annular groove (100) is provided on the outer periphery of the housing assembly (10), and the connecting ring (20) is embedded in the annular groove (100).

3. The bone conduction earphone according to claim 2, wherein The housing assembly (10) includes a contact surface (10a) for contacting the human face skin when the bone conduction earphone is worn, a back surface (10b) facing away from the face, and an outer peripheral surface (10c) located between the contact surface (10a) and the back surface (10b), and the connecting ring (20) is correspondingly arranged with the outer peripheral surface (10c).

4. The bone conduction earphone according to claim 2, wherein The connecting ring (20) is injection molded or compression molded in the annular groove (100).

5. The bone conduction earphone according to claim 2, wherein The bottom surface of the annular groove (100) is provided with a concave first sub-groove (1001), and the connecting ring (20) is provided with a first embedding portion (200) embedded in the first sub-groove (1001); and / or The inner surface of the connecting ring (20) is provided with a concave second sub-groove (1002), and the housing assembly (10) is provided with a second embedding portion (1031) embedded in the second sub-groove (1002).

6. The bone conduction earphone according to claim 5, wherein, The first sub-groove (1001) and the second embedding portion (1031) are respectively located at both ends of the annular groove (100).

7. The bone conduction earphone according to claim 1, wherein, The ratio range of the width of the connecting ring (20) to the thickness of the housing assembly (10) is 0.2 to 0.

8.

8. The bone conduction earphone according to claim 1, wherein, The housing assembly (10) includes a face cover (101), a back cover (102), and a tubular middle shell (103) connected between the face cover (101) and the back cover (102), and the connecting ring (20) is wrapped on the outer surface of the middle shell (103) and covers the seam between the face cover (101), the back cover (102), and the middle shell (103).

9. The bone conduction earphone according to claim 8, wherein, The middle shell (103) is recessed into the face cover (101) and the back cover (102), and an annular groove (100) for accommodating the connecting ring (20) is formed between the face cover (101), the back cover (102), and the middle shell (103).

10. The bone conduction earphone according to claim 8, wherein, The middle shell (103) further includes an outwardly convex connecting portion (1030). An elastic metal wire (23) and a wire (24) are arranged inside the ear hook (2). One end of the elastic metal wire (23) is connected to the connecting portion (1030), and one end of the wire (24) extends into the housing assembly (10) from the connecting portion (1030), and the ear hook (2) simultaneously wraps the connecting portion (1030).

11. The bone conduction earphone according to any one of claims 1 to 10, characterized in that, The bone conduction earphone further includes a housing body (3). The ear hook (2) includes a wrapping body (21) wrapped around the outside of the housing body (3) and an arc-shaped body (22) connected between the wrapping body (21) and the connecting ring (20).

12. The bone conduction earphone according to claim 11, wherein, The housing body (3) includes a main body (30), a first corner portion (31) and a second corner portion (32) protruding from an end of the main body (30) close to the housing assembly (10). The first corner portion (31) and the second corner portion (32) extend obliquely upward and obliquely downward respectively toward the side where the housing assembly (10) is located. An elastic metal wire (23) and a wire (24) are disposed inside the ear hook (2). One end of the elastic metal wire (23) is connected to the first corner portion (31), and one end of the wire (24) extends into the housing body (3) from the first corner portion (31). The covering body (21) covers the first corner portion (31) and the second corner portion (32), and the arc-shaped body (22) is arranged corresponding to the first corner portion (31).

13. The bone conduction earphone according to claim 12, wherein, The covering body (21) is partially embedded in the housing body (3); The housing body (3) is provided with an embedding groove (33), and the covering body (21) is arranged in the embedding groove (33).

14. The bone conduction earphone according to claim 13, wherein, The covering body (21) includes a first covering sleeve (210) covering the first corner portion (31), a second covering sleeve (211) covering the second corner portion (32), and a sheet body (212) extending to the outer surface of the main body (30) facing outward when the bone conduction earphone is worn.

15. The bone conduction earphone according to claim 14, wherein, The second corner portion (32) is provided with a boss (320), and the covering body (21) covers the boss (320); A groove (4) is arranged on the groove bottom surface of the embedding groove (33), and the sheet body (212) includes an embedding block (213) embedded into the groove (4).

16. The bone conduction headset according to claim 14, characterized in that, The main body (30) is in a long strip shape, and the sheet body (212) extends along the length direction of the main body (30) and extends to at least more than half of the length of the housing body (3).

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