Bone conduction earphone

Abstract

A bone conduction earphone disclosed by the present invention comprises a first earphone body, the first earphone body comprises a bone conduction vibration unit and a first shell, the first shell comprises a first upper shell and a first lower shell, the first upper shell is detachably and fixedly connected with the first lower shell, and the first upper shell and the first lower shell define a first accommodating space; the bone conduction vibration unit is arranged in the first containing space, one end of the bone conduction vibration unit abuts against the first upper shell, the other end of the bone conduction vibration unit abuts against the first lower shell, a first bass cavity is defined by the first outer shell and the bone conduction vibration unit, and after the bone conduction earphone is worn, the first earphone body part is located in the ear canal. Two sound transmission paths are formed through vibration of one unit, high-frequency sound signals are transmitted through a bone conduction transmission path, low-frequency sound signals are transmitted through an air transmission path, the problem that the low-frequency sound signals transmitted by a bone conduction earphone are not good is solved, two generation systems are not needed, and the cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to an earphone, in particular to a bone conduction earphone. Background Art

[0002] In people's lives, bone conduction headphones and air conduction headphones have become popular. Bone conduction headphones need to be worn closely to the head. Through the different frequency vibrations of the sound unit vibrator, they are transmitted to the nerve hair cells in the cochlea through the skull, and then analyzed by the brain, so that we can hear the sound. Transmitting sound through bones can bypass the ear canal and eardrum to directly transmit audio to the listener's inner ear. The open binaural wearing method can maintain awareness of the surrounding environment while enjoying music or calls. This design is particularly practical for use in outdoor activities or sports, which can avoid clogging the ears and is safer to use. Bone conduction headphones have excellent playback effects on high-frequency sound signals, but poor playback effects on low-frequency sound signals. If the frequency is relatively low, it is difficult for bone conduction headphones to produce clear sound. At the same time, the vibration of bone conduction headphones has a relatively strong impact on the skin, reducing the user experience.

[0003] Air conduction earphones are usually in-ear design or cover-type design. The earphones completely block the ear canal or completely cover the ear canal, making it difficult for users to hear external sounds, causing inconvenience to users.

[0004] At present, there are two sound systems in the earphone, one is a bone conduction sound system, and the other is an air conduction sound system. The high-frequency signal is sent to the bone conduction sound system through a frequency divider, and the low-frequency signal is sent to the air conduction sound system. However, setting two sound systems in one earphone will increase the size of the earphone and greatly increase the cost of the earphone. Therefore, there is a need for a bone conduction earphone in the market, which can emit both high-frequency sound signals and fresh low-frequency sound signals through a bone conduction sound system. Summary of the invention

[0005] The present invention provides a bone conduction earphone, which is used to solve the problem that the bone conduction earphone is not good at transmitting low-frequency sound signals, and the two sets of sound generation systems can transmit low-frequency sound signals but have high costs.

[0006] According to one aspect of the present invention, there is provided a bone conduction earphone, comprising a first earphone body, the first earphone body comprising a bone conduction vibration unit and a first housing, the first housing comprising: First upper shell; A first lower shell, a first upper shell detachably fixedly connected to the first lower shell, the first upper shell and the first lower shell enclose a first accommodating space, and a cross-sectional area of ​​the first accommodating space is greater than a cross-sectional area of ​​the bone conduction vibration unit; The bone conduction vibration unit is arranged in the first accommodating space, one end of the bone conduction vibration unit abuts against the first upper shell, the other end of the bone conduction vibration unit abuts against the first lower shell, and the first shell and the bone conduction vibration unit enclose a first bass cavity; When the bone conduction earphone is worn, there is a gap in a partial area between the first earphone body and the ear canal, and the first earphone body is at least partially located in the ear canal.

[0007] Furthermore, at least one sound transmission hole is provided on the first shell, the sound transmission hole is connected to the first bass cavity, and the sound transmission hole is provided on a side close to the ear canal.

[0008] Furthermore, the first upper shell and the bone conduction vibration unit enclose a second bass cavity.

[0009] Furthermore, at least one first connecting hole is provided on the first upper shell, and the first connecting hole is used to connect the first bass cavity and the second bass cavity.

[0010] Furthermore, the first lower shell and the bone conduction vibration unit enclose a third bass cavity.

[0011] Furthermore, at least one second connecting hole is provided on the first lower shell, and the second connecting hole is used to connect the first bass cavity and the third bass cavity.

[0012] Furthermore, the first shell is a flexible member.

[0013] Furthermore, the first earphone body also includes a first flexible protective layer, which is arranged on the outside of the first shell, and a fourth bass cavity is formed between the first flexible protective layer and the first shell. The fourth bass cavity is arranged on a side close to the ear canal, and the sound transmission hole connects the first bass cavity and the fourth bass cavity.

[0014] Furthermore, the bone conduction earphone also includes a second earphone body and an elastic connecting arm, the elastic connecting arm is connected between the first earphone body and the second earphone body, the first earphone body and the second earphone body are arranged opposite to each other and have an initial distance, and when the elastic connecting arm can be deformed, the deformation of the elastic connecting arm can generate a clamping force.

[0015] Furthermore, the clamping force is between 0.05N and 1N.

[0016] Beneficial effects of the present invention: In the bone conduction earphone of the present invention, a bone conduction vibration unit is arranged in the first accommodating space of the first earphone body. The vibration of the bone conduction vibration unit drives the first outer shell to vibrate. The first earphone body abuts against a partial area of ​​the ear canal. The high-frequency sound signal of the bone conduction vibration unit is transmitted to the nerve hair cells in the cochlea through the ear canal and the skull, forming a bone conduction transmission path.

[0017] Since the first shell and the bone conduction vibration unit form a first bass cavity, the vibration of the bone conduction vibration unit will cause the air in the first bass cavity to vibrate. Since the first bass cavity is at least partially arranged in the ear canal, the vibration of the air in the bass cavity is transmitted to the nerve hair cells in the cochlea through the ear canal and the eardrum, forming an air transfer path, and the air transfer path transmits low-frequency sound signals.

[0018] The present application makes full use of the space in the ear canal by connecting the first earphone body with a partial area of ​​the ear canal, and arranges a first bass cavity in the first earphone body. The first bass cavity is an air cavity, which increases the space for air vibration and can significantly enhance the bass effect. At the same time, the signal frequency of the bone conduction earphone does not need to be reduced, and the impact of the bone conduction earphone on the skin when vibrating is reduced.

[0019] The present application forms two sound transmission paths through a set of unit vibrations, which transmits high-frequency sound signals through the bone conduction transmission path and low-frequency sound signals through the air transmission path, thereby solving the problem of poor low-frequency sound signal transmission of bone conduction headphones. Two generating systems are not required, which greatly reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the present invention; Figure 2 An exploded view of a specific embodiment of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of another specific embodiment of the present invention; Figure 4 is a cross-sectional view of another specific embodiment of the present invention; Figure 5 It is an exploded view of another specific embodiment of the present invention; Figure 6 A cross-sectional view of another specific embodiment of the present invention; Figure 7 An exploded view of a first earphone body of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the first upper shell of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the first lower shell of the present invention; In the figure: 1-first earphone body; 11-first flexible protective layer; 12-first upper shell; 121-first connecting hole; 13-first lower shell; 131-second connecting hole; 14-bone conduction vibration unit; 15-sound transmission hole; 2-elastic connecting arm; 3-second earphone body; 31-second flexible protective layer; 32-second outer shell; 41-first bass cavity; 42-second bass cavity; 43-third bass cavity; 44-fourth bass cavity. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0023] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0024] See also Figure 1 and 2 As shown, a first specific implementation of a bone conduction headset of the present invention is shown.

[0025] According to one aspect of the present invention, a bone conduction earphone is provided, comprising a first earphone body 1, the first earphone body 1 comprising a bone conduction vibration unit 14 and a first shell, the first shell comprising: A first upper shell 12; The first lower shell 13, the first upper shell 12 is detachably fixedly connected to the first lower shell 13, the first upper shell 12 and the first lower shell 13 enclose a first accommodating space, and the cross-sectional area of ​​the first accommodating space is greater than the cross-sectional area of ​​the bone conduction vibration unit 14; The bone conduction vibration unit 14 is disposed in the first accommodation space, one end of the bone conduction vibration unit 14 abuts against the first upper shell 12, and the other end of the bone conduction vibration unit 14 abuts against the first lower shell 13, and the first shell and the bone conduction vibration unit 14 enclose a first bass cavity 41; When the bone conduction earphone is worn, there is a gap between the first earphone body 1 and a portion of the ear canal, and the first earphone body 1 is at least partially located in the ear canal.

[0026] In the bone conduction earphone of the present invention, a bone conduction vibration unit 14 is arranged in the first accommodating space of the first earphone body 1. The vibration of the bone conduction vibration unit 14 drives the first outer shell to vibrate. The first earphone body 1 abuts against a part of the ear canal. The high-frequency sound signal of the bone conduction vibration unit 14 is transmitted to the nerve hair cells in the cochlea through the ear canal and the skull, forming a bone conduction transmission path.

[0027] Since the first shell and the bone conduction vibration unit 14 form a first bass cavity 41, the vibration of the bone conduction vibration unit 14 will cause the air in the first bass cavity 41 to vibrate. Since the first bass cavity 41 is at least partially arranged in the ear canal, the vibration of the air in the bass cavity is transmitted to the nerve hair cells in the cochlea through the ear canal and the eardrum, forming an air transfer path, and the air transfer path transmits low-frequency sound signals.

[0028] Since bone conduction headphones have excellent playback effects on high-frequency sound signals, but poor playback effects on low-frequency sound signals, there are many factors that affect this. One of the important reasons is that the vibrator of the bone conduction headphones is in direct contact with the user's head skin, and it is impossible to set up enough space inside. The transmission of low-frequency signals has a certain relationship with the space inside the headphones. The larger the space inside the headphones, the better the low-frequency signal effect. The space of bone conduction headphones is relatively small. Therefore, when the signal frequency is relatively low, it is difficult for bone conduction headphones to produce clear sound. At the same time, the vibration of bone conduction headphones has a relatively large impact on the skin. The present application makes full use of the space in the ear canal by bringing the first earphone body 1 into contact with a partial area of ​​the ear canal, and arranges a first bass cavity 41 in the first earphone body 1. The first bass cavity 41 is an air cavity, which increases the space for air vibration and can significantly enhance the bass effect. At the same time, the signal frequency of the bone conduction earphone does not need to be reduced, and the impact of the bone conduction earphone on the skin when vibrating is reduced.

[0029] In the present application, the first earphone body 1 abuts against a part of the ear canal, and there is a certain gap between the ear canal and a part of the first earphone body 1. The ear canal is not completely blocked, and external sounds can enter the ear canal through the gap.

[0030] The present application forms two sound transmission paths through a set of unit vibrations, which transmits high-frequency sound signals through the bone conduction transmission path and low-frequency sound signals through the air transmission path, thereby solving the problem of poor low-frequency sound signal transmission of bone conduction headphones. Two generating systems are not required, which greatly reduces costs.

[0031] See also Figure 3 and Figure 4 As shown, in one embodiment, at least one sound hole 15 is provided on the first shell, the sound hole 15 passes through the wall of the first shell and is connected to the first bass cavity 41, and the sound hole 15 is provided on a side close to the ear canal.

[0032] When the bone conduction vibration unit 14 vibrates in the first accommodating space, it will cause the air in the first bass cavity 41 to vibrate, thereby generating sound waves. The sound wave is essentially a pressure wave, but the pressure wave of the first bass cavity 41 is blocked by the first shell and cannot be transmitted well. A sound transmission hole 15 is provided on the first shell, and the pressure wave can pass through the sound transmission hole 15 and be directly transmitted to the user's ear canal. The sound wave transmission effect generated by the bone conduction vibration unit 14 is better.

[0033] The cross-sectional area of ​​the sound transmission hole 15 can be designed to gradually decrease from the inside to the outside, that is, the cross-sectional area gradually decreases from one side of the first bass cavity 41 to the outer surface of the first earphone body 1. Preferably, the shape of the sound transmission hole 15 is a truncated cone-shaped through hole, which can expand the receiving area, and the pressure wave passes through the sound transmission hole 15 more efficiently.

[0034] In one embodiment, there are at least two sound transmission holes 15 which are spaced apart from each other. After the sound waves pass through the sound transmission holes 15 , interference will occur, and the amplitude of the sound waves will increase after the interference.

[0035] Sound interference refers to the phenomenon that two or more sound waves overlap each other when they meet, resulting in the addition or subtraction of amplitudes. The interference phenomenon needs to meet the following conditions: The frequencies of the two sound waves must be the same, otherwise they cannot interfere with each other.

[0036] ‌Constant Phase Difference‌: The phase difference between the two sound waves remains constant during propagation, so that their amplitudes can be added or subtracted.

[0037] As for the technical solution of the present application, the frequency of the sound waves generated by the bone conduction vibration unit 14 is consistent, and two sound transmission holes 15 are arranged on the first shell. By adjusting the distance between the two sound transmission holes 15, the phase difference of the two sound waves is made zero. When they meet, they reinforce each other and produce a superposition effect, which is manifested as an increase in sound pressure.

[0038] Of course, three or more sound holes 15 can also be set on the first shell. By adjusting the distance between the sound holes 15, the phase difference of all sound waves passing through the sound holes 15 can be made zero, and the sound waves can further reinforce each other when they meet, further enhancing the superposition effect.

[0039] See also Figure 4 As shown, in one embodiment, the first upper shell 12 and the bone conduction vibration unit 14 enclose a second bass chamber 42 .

[0040] A sunken groove is set at the bottom of the first upper shell 12. When the bone conduction vibration unit 14 is assembled to the first upper shell 12, it abuts against the first upper shell 12. The first upper shell 12 and the bone conduction vibration unit 14 enclose a second bass cavity 42. Two bass cavities are formed in the first earphone body 1, which can further enhance the bass effect of the first earphone body 1.

[0041] See also Figure 8 As shown, a first connecting hole 121 is provided on the first upper shell 12, and the first connecting hole 121 is used to connect the first bass cavity 41 and the second bass cavity 42, thereby expanding the volume of the bass cavity, increasing the space for air vibration, and enhancing the bass effect. At the same time, the sound waves of the air in the second bass cavity 42 are transmitted to the first bass cavity 41 through the first connecting hole 121, and are superimposed with the sound waves in the first bass cavity 41, thereby enhancing the bass effect.

[0042] At least two first connection holes 121 are provided on the first upper shell 12 , and the distance between the first connection holes 121 is adjusted so that the sound waves passing through the first connection holes 121 are superimposed on each other, thereby enhancing the bass effect.

[0043] See also Figure 4 As shown, in one embodiment, the first lower shell 13 and the bone conduction vibration unit 14 enclose a third bass chamber 43 .

[0044] A sunken groove is set at the bottom of the first lower shell 13. When the bone conduction vibration unit 14 is assembled to the first lower shell 13, it abuts against the first lower shell 13. The first lower shell 13 and the bone conduction vibration unit 14 enclose a third bass cavity 43. A third bass cavity is formed in the first earphone body 1, which can further enhance the bass effect of the first earphone body 1.

[0045] See also Fig. 9 As shown, at least one second connection hole 131 is provided on the first lower shell 13, and the second connection hole 131 is used to connect the first bass cavity 41 and the third bass cavity 43. By setting the second connecting hole 131, the volume of the bass cavity is further expanded, the space for air vibration is further increased, and the bass effect is enhanced. At the same time, the sound waves of the air in the third bass cavity 43 are transmitted to the first bass cavity 41 through the second connecting hole 131, and are superimposed with the sound waves in the first bass cavity 41, thereby enhancing the bass effect.

[0046] At least two second connection holes 131 are provided on the first lower shell 13 , and the distance between the second connection holes 131 is adjusted so that the sound waves passing through the second connection holes 131 are superimposed on each other, thereby enhancing the bass effect.

[0047] See also Figures 1 to 4As shown, in one embodiment, the first shell is a flexible part. The ear canal, especially the inner ear canal, is a very fragile part of the human body. To prevent the ear canal of the user from being damaged due to the excessive hardness of the first shell, or to reduce the user's comfort due to the first shell having a higher hardness, setting the first shell as a flexible part can effectively avoid these problems. The material of the first shell is preferably rubber, silicone or silicone rubber, and the user experience is better after these materials come into contact with the human body. The hardness of the material is between 0.1-0.3 on the Mohs hardness scale, and the hardness of the material is preferably between 0.1-0.2 on the Mohs hardness scale, because the hardness of the human skin is between 0.1-0.2 on the Mohs hardness scale, which can further improve the user's comfort. The hardness of the material is preferably between 0.1-0.15 on the Mohs hardness scale.

[0048] The sizes of users' ears are different. When the user's ears are relatively large, the area of ​​the first earphone body 1 near the ear canal is suspended in the air. When the user's ears are relatively small, the area of ​​the first earphone body 1 near the ear canal will contact the user's ear canal, and the flexible first shell will be deformed. The hardness of the first shell is similar to that of human skin, which can significantly improve the user's comfort.

[0049] Since the first bass cavity 41 is an air cavity, when the flexible first shell is squeezed, the air in the first bass cavity 41 is discharged, the first bass cavity 41 is deformed, and the space of the first bass cavity 41 becomes smaller, which affects the bass effect. At least one first reset column (not shown in the figure) is arranged in the first bass cavity 41. The first reset column has a certain elasticity. The elastic first reset column can effectively reduce the deformation of the first shell. At the same time, when the external pressure disappears, the first shell can be quickly restored to its original state.

[0050] See also Figures 5 to 7 As shown, in one embodiment, the first earphone body 1 also includes a first flexible protective layer 11, and the first flexible protective layer 11 is arranged on the outside of the first shell. A fourth bass cavity 44 is formed between the first flexible protective layer 11 and the first shell. The fourth bass cavity 44 is arranged on a side close to the ear canal, and the sound transmission hole 15 connects the first bass cavity 41 and the fourth bass cavity 44.

[0051] The first bass cavity 41 and the fourth bass cavity 44 are connected via the sound transmission hole 15, so that the volume of the bass cavity is further expanded, the space for air vibration is further increased, and the bass effect is enhanced.

[0052] The material of the first flexible protective layer 11 is preferably rubber, silicone or silicone rubber, which provide a good user experience after contacting the human body. The hardness of the material is between 0.1-0.3 on the Mohs hardness scale, preferably between 0.1-0.2 on the Mohs hardness scale, because the hardness of human skin is between 0.1-0.2 on the Mohs hardness scale, which can further improve the user's comfort. The hardness of the material is preferably between 0.1-0.15 on the Mohs hardness scale.

[0053] After the sound waves of the first bass cavity 41 pass through a plurality of sound transmission holes 15, the phase difference of all the sound waves passing through the sound transmission holes 15 is zero, and the sound waves are superimposed on each other when they meet, which can further enhance the bass effect.

[0054] Since the first flexible protective layer 11 is made of flexible material and the fourth bass cavity 44 is an air cavity, when the first flexible protective layer 11 is in direct contact with the ear canal and is squeezed, the first flexible protective layer 11 will deform, reducing the pressure of the first flexible protective layer 11 on the ear canal and greatly improving the user's comfort.

[0055] Since the first flexible protective layer 11 is made of flexible material, it can well protect the ear canal. In this embodiment, the first shell can be made of hard material, preferably various hard plastic materials, such as PP plastic material, ABS plastic material and PC plastic material. The first shell is made of hard material to provide good support for the first earphone body 1, which can protect the ear canal and prevent the first earphone body 1 from being excessively deformed, thereby affecting the bass effect.

[0056] Since the fourth bass cavity 44 is an air cavity, when the first flexible protective layer 11 is squeezed, the air in the fourth bass cavity 44 is discharged, the fourth bass cavity 44 is deformed, and the space of the fourth bass cavity 44 becomes smaller, affecting the bass effect. At least one second reset column (not shown in the figure) is arranged in the fourth bass cavity 44. The second reset column has a certain elasticity. The elastic second reset column can effectively reduce the deformation of the fourth bass cavity 44. At the same time, when the external pressure disappears, the fourth bass cavity 44 can be quickly restored to its original state.

[0057] See also Figures 1 to 6 As shown, in one embodiment, the bone conduction earphone also includes a second earphone body 3 and an elastic connecting arm 2, the elastic connecting arm 2 is connected between the first earphone body 1 and the second earphone body 3, the first earphone body 1 and the second earphone body 3 are arranged opposite to each other and have an initial distance, when the elastic connecting arm 2 can be deformed, the deformation of the elastic connecting arm 2 can generate a clamping force.

[0058] The second earphone body 3 includes a second shell 32, and a second accommodating space is arranged in the second shell 32. The second accommodating space is provided with electronic components such as batteries and control circuits. The battery in the second accommodating space is used to provide power to the bone conduction earphones, and the control circuit is used to control the signal of the bone conduction earphones and the conversion of the playback mode.

[0059] See also Figure 2 and 5As shown, the second earphone body 3 also includes a second flexible protective layer 31, which is arranged on the outside of the second shell 32. The second shell 32 includes a second upper shell and a second lower shell. When the second upper shell and the second lower shell are assembled together, they enclose a second accommodating space.

[0060] The material of the second flexible protective layer 31 is preferably rubber, silicone or silicone rubber, which provide a good user experience after contacting the human body. The hardness of the material is between 0.1-0.3 on the Mohs hardness scale, preferably between 0.1-0.2 on the Mohs hardness scale, because the hardness of human skin is between 0.1-0.2 on the Mohs hardness scale, which can further improve the user's comfort. The hardness of the material is preferably between 0.1-0.15 on the Mohs hardness scale.

[0061] When the user wears the bone conduction earphone, the bone conduction earphone is fixed to the user's ear through the elastic connecting arm 2. Part of the first earphone body 1 extends into the ear canal, and the second earphone body 3 is fixed to the back of the auricle. The elastic connecting arm 2 can be deformed, and the distance between the first earphone body 1 and the second earphone body 3 is greater than the initial distance (the distance before the elastic connecting arm 2 is deformed), which generates a certain clamping force on the ear. The distance between the first earphone body 1 and the second earphone body 3 is greater than or equal to 2mm and less than or equal to 5mm, so as to ensure that the clamping force of the bone conduction earphone is moderate and does not fall off the auricle.

[0062] The clamping force is between 0.05N and 1N, preferably between 0.1N and 0.5N, and more preferably between 0.1N and 0.3N. When the clamping force is less than 0.05N, the bone conduction earphones are likely to fall off the auricle. When the clamping force is less than 1N, it is easy to over-clamp the ears, reducing the user experience.

[0063] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0065] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bone conduction headset, characterized in that: The invention comprises a first earphone body, wherein the first earphone body comprises a bone conduction vibration unit and a first shell, wherein the first shell comprises: First upper shell; a first lower shell, wherein the first upper shell is detachably fixedly connected to the first lower shell, the first upper shell and the first lower shell together form a first accommodating space, and the cross-sectional area of ​​the first accommodating space is greater than the cross-sectional area of ​​the bone conduction vibration unit; The bone conduction vibration unit is arranged in the first accommodating space, one end of the bone conduction vibration unit abuts against the first upper shell, the other end of the bone conduction vibration unit abuts against the first lower shell, and the first shell and the bone conduction vibration unit enclose a first bass cavity; Wherein, when the bone conduction earphone is worn, there is a gap in a partial area between the first earphone body and the ear canal, and the first earphone body is at least partially located in the ear canal.

2. The bone conduction earphone according to claim 1, characterized in that: At least one sound transmission hole is arranged on the first shell, the sound transmission hole is connected with the first bass cavity, and the sound transmission hole is arranged on a side close to the ear canal.

3. The bone conduction earphone according to claim 2, characterized in that: The first upper shell and the bone conduction vibration unit together form a second bass cavity.

4. The bone conduction earphone according to claim 3, characterized in that: At least one first connecting hole is provided on the first upper shell, and the first connecting hole is used to connect the first bass cavity and the second bass cavity.

5. The bone conduction earphone according to claim 2, characterized in that: The first lower shell and the bone conduction vibration unit together form a third bass chamber.

6. The bone conduction earphone according to claim 5, characterized in that: At least one second connecting hole is provided on the first lower shell, and the second connecting hole is used to connect the first bass cavity and the third bass cavity.

7. The bone conduction earphone according to any one of claims 1 to 6, characterized in that: The first shell is a flexible member.

8. The bone conduction earphone according to any one of claims 2 to 6, characterized in that: The first earphone body also includes a first flexible protective layer, which is arranged on the outside of the first shell, and a fourth bass cavity is formed between the first flexible protective layer and the first shell. The fourth bass cavity is arranged on a side close to the ear canal, and the sound transmission hole connects the first bass cavity and the fourth bass cavity.

9. The bone conduction earphone according to any one of claims 1 to 6, characterized in that: The bone conduction earphone also includes a second earphone body and an elastic connecting arm, wherein the elastic connecting arm is connected between the first earphone body and the second earphone body, the first earphone body and the second earphone body are arranged opposite to each other and have an initial distance, and when the elastic connecting arm can be deformed, the deformation of the elastic connecting arm can generate a clamping force.

10. The bone conduction earphone according to claim 9, characterized in that: The clamping force is between 0.05N and 1N.

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