Anti-leakage bone conduction earphones

Abstract

The present invention discloses a sound leakage-proof bone conduction earphone, comprising a bone conduction earphone main body, the bone conduction earphone main body having a mounting cavity for arranging a bone conduction vibrator, the bone conduction vibrator being arranged in the mounting cavity, and a plurality of clamping parts arranged at intervals being convexly arranged on the inner side wall of the mounting cavity; the outer peripheral side wall of the bone conduction vibrator is limited by the clamping parts so that the outer peripheral side wall of the bone conduction vibrator does not directly contact the bone conduction earphone main body; a distance is arranged between the surface of the bone conduction vibrator which faces away from the side of the bone conduction earphone main body in contact with the human body and the inner wall of the mounting cavity; thereby, the contact area between the bone conduction vibrator and the shell of the bone conduction earphone main body is reduced, so that the vibration transmission of the bone conduction vibrator to the shell of the bone conduction earphone main body can be reduced, so that the sound emitted from the shell of the bone conduction earphone main body can be reduced, thereby reducing the leakage of the sound, so as to achieve the purpose of sound leakage prevention, prevent the sound from being obtained by the outside world, and ensure confidentiality without causing the phenomenon of sound leakage in public places to affect others.

Description

Technical Field

[0001] The invention relates to the field of bone conduction earphones, and in particular to a sound leakage-proof bone conduction earphone. Background Art

[0002] Bone conduction headphones convert electrical signals into vibration signals, and through contact with the human skin and bones, use solid (not air) as a medium to transmit sound waves directly to the auditory nerves of the brain; this can prevent the headphones from picking up unnecessary noise, such as wind, etc., making the sound clear. However, the existing bone conduction earphones include a shell and a bone conduction vibrator installed in the shell, and the bone conduction vibrator has a large area of ​​contact with the shell. When in use, the large area of ​​contact between the bone conduction vibrator and the shell will cause the bone conduction vibrator to transmit too much vibration to the shell, resulting in the shell obtaining a large amount of vibration capacity, causing a large amount of sound to be emitted from the shell vibration, thereby causing sound leakage. The sound will be obtained by the outside world, and confidentiality cannot be guaranteed. In addition, sound leakage in public places affects others. For this reason, some bone conduction earphones also suspend the bone conduction vibrator in the shell through a suspension bracket, but the bone conduction vibrator will be suspended in the air, resulting in a phenomenon that the vibration of the bone conduction vibrator is weakened when it is working. At the same time, the suspension bracket makes the bone conduction vibrator suspended in the air and cannot firmly fix the bone conduction vibrator, which is prone to shaking of the bone conduction vibrator and causes adverse phenomena. In addition, the suspension structure of the bone conduction vibrator is complicated, resulting in great difficulty in assembly and production, and high design cost.

[0003] Therefore, it is necessary to develop a new technical solution to solve the above problems. Summary of the invention

[0004] In view of this, the present invention aims at the deficiencies of the prior art, and its main purpose is to provide a sound leakage-proof bone conduction earphone, which reduces the contact area between the bone conduction vibrator and the shell of the bone conduction earphone main body, thereby reducing the vibration transmission of the bone conduction vibrator to the shell of the bone conduction earphone main body. In this way, the sound emitted from the shell of the bone conduction earphone main body can be reduced, thereby reducing the leakage of sound, so as to achieve the purpose of sound leakage prevention, prevent the sound from being obtained by the outside world, and have confidentiality while preventing the sound from leaking in public places and affecting others. In addition, the bone conduction vibrator will not be suspended in the air, resulting in the weakening of the vibration of the bone conduction vibrator when it is working. At the same time, the bone conduction vibrator can be clamped and fixed more firmly, and the bone conduction vibrator will not shake and cause adverse phenomena.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A sound leakage-proof bone conduction earphone comprises a bone conduction earphone body, the bone conduction earphone body having a mounting cavity for accommodating a bone conduction vibrator, the bone conduction vibrator being arranged in the mounting cavity, the inner side wall of the mounting cavity being convexly provided with a plurality of clamping parts arranged at intervals; the outer peripheral side wall of the bone conduction vibrator is limited by the clamping parts so that the outer peripheral side wall of the bone conduction vibrator does not directly contact the bone conduction earphone body; and a distance is set between the surface of the bone conduction vibrator on the side facing away from the bone conduction earphone body in contact with the human body and the inner wall of the mounting cavity.

[0007] As a preferred solution, the clamping portion extends along the axial direction of the installation cavity.

[0008] As a preferred solution, a plurality of clamping portions are arranged in sequence with annular intervals along the inner side wall of the installation cavity.

[0009] As a preferred embodiment, the clamping portion is a convex rib, which is integrally formed and convexly arranged on the surface of the inner wall of the installation cavity. The convex rib is provided with a clamping surface on the side facing the center of the installation cavity, and the peripheral side wall of the bone conduction vibrator is restricted by the clamping surface.

[0010] As a preferred solution, a distance is left between the front side of the convex rib and the top of the installation cavity, and the back side of the convex rib extends to the bottom of the installation cavity.

[0011] As a preferred solution, a guiding inclined surface extending obliquely downward from the outside to the inside is formed on the front surface of the convex rib.

[0012] As a preferred solution, the bone conduction earphone body has a first surface in contact with the human body and a second surface opposite to the first surface, and a distance is set between the reverse side of the bone conduction vibrator and the inner side wall of the mounting cavity on the side where the second surface of the bone conduction earphone body is located.

[0013] As a preferred solution, the front surface of the bone conduction vibrator contacts the inner wall of the side where the first surface of the bone conduction earphone body is located.

[0014] As a preferred embodiment, the bone conduction earphone body includes a shell and a rubber sleeve, the mounting cavity is formed on the shell, the front side of the shell has an opening that passes through the mounting cavity, the rubber sleeve covers the opening, the back side of the bone conduction vibrator is spaced apart from the inner bottom wall of the shell, and the front side of the bone conduction vibrator is in contact with the inner top surface of the rubber sleeve.

[0015] As a preferred solution, the first surface is formed on a side of the rubber sleeve facing away from the shell, and the second surface is formed on a side of the shell facing away from the rubber sleeve.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it is mainly through protruding a plurality of clamping parts arranged at intervals on the inner side wall of the installation cavity, and limiting the outer peripheral side wall of the bone conduction vibrator by the clamping part, so that the outer peripheral side wall of the bone conduction vibrator does not directly contact the bone conduction earphone body, and the distance between the surface of the bone conduction vibrator facing away from the bone conduction earphone body in contact with the human body and the inner wall of the installation cavity is set, so that the side surface of the bone conduction vibrator does not directly contact the shell of the bone conduction earphone body, and the back surface of the bone conduction vibrator does not contact the shell of the bone conduction earphone body, thereby reducing the contact between the bone conduction vibrator and the shell of the bone conduction earphone body. The contact area between the two parts can reduce the vibration transmission of the bone conduction vibrator to the shell of the bone conduction earphone main body. In this way, the sound emitted from the shell of the bone conduction earphone main body can be reduced, thereby reducing the leakage of sound, so as to achieve the purpose of preventing sound leakage, so as to prevent the sound from being obtained by the outside world. While having confidentiality, there will be no phenomenon of sound leakage in public places to affect others, and there will be no phenomenon of the bone conduction vibrator being suspended in the air, which will weaken the vibration of the bone conduction vibrator when it is working. At the same time, the bone conduction vibrator can be clamped and fixed more firmly, and the bone conduction vibrator will not shake and cause adverse phenomena. The structural design is simple, ingenious and reasonable, which reduces the difficulty of assembly and production and the design cost.

[0017] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 It is a three-dimensional schematic diagram of the overall structure of an embodiment of the present invention from another angle;

[0020] Figure 3 is an exploded view of an embodiment of the present invention;

[0021] Figure 4 is another exploded view of an embodiment of the present invention;

[0022] Figure 5 It is a cross-sectional view of an embodiment of the present invention.

[0023] Description of the accompanying drawings:

[0024] 10. Bone conduction earphone body 11. Installation cavity

[0025] 12. First surface 13. Second surface

[0026] 14. Shell 15. Rubber sleeve

[0027] 151, annular covering portion 20, bone conduction vibrator

[0028] 30, Spacing 40, Ribs

[0029] 41. Clamping surface 42. Guide slope. DETAILED DESCRIPTION

[0030] Please refer to Figures 1 to 5 As shown, it shows the specific structure of an embodiment of the present invention.

[0031] A sound leakage-proof bone conduction earphone, comprising a bone conduction earphone body 10, the bone conduction earphone body 10 having an installation cavity 11 for accommodating a bone conduction vibrator 20, the bone conduction vibrator 20 being arranged in the installation cavity 11, the inner side wall of the installation cavity 11 being convexly provided with a plurality of clamping parts arranged at intervals; the outer peripheral side wall of the bone conduction vibrator 20 is limited by the clamping parts so that the outer peripheral side wall of the bone conduction vibrator 20 does not directly contact the bone conduction earphone body 10; the surface of the bone conduction vibrator 20 facing away from the side of the bone conduction earphone body 10 in contact with the human body is arranged at an interval of 30 from the inner wall of the installation cavity 11; in this way, the side surface of the bone conduction vibrator 20 does not directly contact the bone conduction earphone body 10, and the reverse side of the bone conduction vibrator 20 does not contact the human body. The bone conduction earphone body 10 reduces the contact area between the bone conduction vibrator 20 and the bone conduction earphone body 10, thereby reducing the vibration transmission of the bone conduction vibrator 20 to the bone conduction earphone body 10. In this way, the sound emitted from the bone conduction earphone body 10 can be reduced, thereby reducing the leakage of sound, so as to achieve the purpose of preventing sound leakage, so as to prevent the sound from being obtained by the outside world, and at the same time, confidentiality will not occur, and the sound will not leak out in public places to affect others. In addition, the bone conduction vibrator 20 will not be suspended in the air, resulting in the weakening of the vibration of the bone conduction vibrator 20 when it is working. At the same time, the bone conduction vibrator 20 can be clamped and fixed more firmly, and the bone conduction vibrator 20 will not shake and cause adverse phenomena.

[0032] Preferably, in this embodiment, Figure 4As shown, the installation cavity 11 is a cylindrical structure, and the clamping portion extends along the axial direction of the installation cavity 11. A plurality of clamping portions are arranged in a circular spacing in sequence along the inner side wall of the installation cavity 11, so that the plurality of clamping portions can be clamped and fixed to the outer peripheral side wall of the bone conduction vibrator 20 respectively, so as to firmly clamp the bone conduction vibrator 20. The clamping portion is a convex rib 40, and the convex rib 40 is integrally formed and convexly arranged on the surface of the inner side wall of the installation cavity 11. The convex rib 40 is provided with a clamping surface 41 on one side facing the center of the installation cavity 11, and the outer peripheral side wall of the bone conduction vibrator 20 is limited by the clamping surface 41. The front side of the convex rib 40 is formed with a guiding inclined surface 42 extending obliquely downward from the outside to the inside. The setting of the guiding inclined surface 42 can facilitate the smooth installation of the bone conduction vibrator 20. There is a gap between the front side of the convex rib 40 and the top of the mounting cavity 11, and the back side of the convex rib 40 extends to the bottom of the mounting cavity 11. In this way, by leaving a gap between the front side of the convex rib 40 and the top of the mounting cavity 11, the contact area between the convex rib 40 and the side wall of the mounting cavity 11 can be reduced, thereby further reducing the contact area between the side of the bone conduction vibrator 20 and the bone conduction earphone body 10, which can further reduce the leakage of sound.

[0033] Preferably, in this embodiment, the bone conduction earphone body 10 has a first surface 12 in contact with the human body and a second surface 13 opposite to the first surface 12, and a distance 30 is set between the back surface of the bone conduction vibrator 20 and the inner wall of the mounting cavity 11 on the side where the second surface 13 of the bone conduction earphone body 10 is located. The front surface of the bone conduction vibrator 20 contacts the inner wall on the side where the first surface 12 of the bone conduction earphone body 10 is located, so that the front surface of the bone conduction vibrator 20 can be ensured to contact the rubber sleeve 15 and then contact the cartilage of the face to achieve the purpose of bone conduction.

[0034] Preferably, in this embodiment, the bone conduction earphone body 10 includes a shell 14 and a rubber sleeve 15, the mounting cavity 11 is formed on the shell 14, the front side of the shell 14 has an opening that passes through the mounting cavity 11, the rubber sleeve 15 covers the opening, the back side of the bone conduction vibrator 20 and the inner bottom wall of the shell 14 are arranged at a distance of 30, and the front side of the bone conduction vibrator 20 is in contact with the inner top surface of the rubber sleeve 15; the first surface 12 is formed on the side of the rubber sleeve 15 that is away from the shell 14, and the second surface 13 is formed on the side of the shell 14 that is away from the rubber sleeve 15.

[0035] Preferably, in this embodiment, the ribs 40 are provided with six, and the six ribs 40 are arranged on the inner side wall of the housing 14 in a circular manner with intervals. Of course, the ribs 40 are not limited to the above number, and other numbers of ribs 40 may also be provided, which will not be described in detail. In addition, the clamping portion may also be a cylindrical convex column or an arc-shaped convex portion, as long as it can clamp the bone conduction vibrator 20.

[0036] Preferably, in this embodiment, the rubber sleeve 15 is convexly provided with an annular covering portion 151 on one side facing the shell 14, and the annular covering portion 151 covers the outer peripheral side wall of the bone conduction vibrator 20. In this way, the contact area between the bone conduction vibrator 20 and the rubber sleeve 15 can be increased by covering the outer peripheral side wall of the bone conduction vibrator 20 with the rubber sleeve 15, thereby improving the vibration transmission of the bone conduction vibrator 20 to the rubber sleeve 15, so that when the first surface 12 of the rubber sleeve 15 directly contacts the human body, it can almost completely release the vibration energy, thereby improving the sound clarity and quality, and improving the user's hearing effect.

[0037] In summary, the design focus of the present invention is that it mainly protrudes a plurality of clamping parts arranged at intervals on the inner side wall of the installation cavity, and the outer peripheral side wall of the bone conduction vibrator is restricted by the clamping part, so that the outer peripheral side wall of the bone conduction vibrator does not directly contact the bone conduction earphone body, and the distance between the surface of the bone conduction vibrator facing away from the bone conduction earphone body in contact with the human body and the inner wall of the installation cavity is set, so that the side surface of the bone conduction vibrator does not directly contact the shell of the bone conduction earphone body, and the back surface of the bone conduction vibrator does not contact the shell of the bone conduction earphone body, thereby reducing the contact area between the bone conduction vibrator and the shell of the bone conduction earphone body, thereby reducing The vibration transmission of the bone conduction vibrator to the shell of the bone conduction earphone body is reduced. In this way, the sound emitted from the vibration of the shell of the bone conduction earphone body can be reduced, thereby reducing the leakage of sound, so as to achieve the purpose of preventing sound leakage, so as to prevent the sound from being obtained by the outside world. While maintaining confidentiality, there will be no sound leakage in public places to affect others. In addition, there will be no phenomenon that the bone conduction vibrator is suspended in the air, resulting in the weakening of the vibration of the bone conduction vibrator when it is working. At the same time, the bone conduction vibrator can be clamped and fixed more firmly, and the bone conduction vibrator will not shake and cause adverse phenomena. The structural design is simple, ingenious and reasonable, which reduces the difficulty of assembly and production and the design cost.

Claims

1. A sound leakage-proof bone conduction earphone, characterized in that: The present invention comprises a bone conduction earphone body, wherein the bone conduction earphone body has a mounting cavity for mounting a bone conduction vibrator, the bone conduction vibrator is mounted in the mounting cavity, and the inner side wall of the mounting cavity is convexly provided with a plurality of clamping parts arranged at intervals; the outer peripheral side wall of the bone conduction vibrator is limited by the clamping parts so that the outer peripheral side wall of the bone conduction vibrator does not directly contact the bone conduction earphone body; and a distance is set between the surface of the bone conduction vibrator on the side facing away from the bone conduction earphone body contacting with the human body and the inner wall of the mounting cavity; The clamping portion is a convex rib, which is integrally formed and convexly arranged on the surface of the inner wall of the installation cavity. The convex rib is provided with a clamping surface on the side facing the center of the installation cavity, and the outer peripheral side wall of the bone conduction vibrator is restricted by the clamping surface; the clamping surface extends obliquely downward from the outside to the inside; A distance is left between the front side of the convex rib and the top of the installation cavity, and the back side of the convex rib extends to the bottom of the installation cavity; The reserved space between the front side of the convex rib and the top of the mounting cavity is used for assembling the rubber sleeve and for cooperating with the annular covering portion of the rubber sleeve; and, the annular covering portion of the rubber sleeve covers the outer peripheral side wall of the bone conduction vibrator, and the bone conduction vibrator is directly in contact with the annular covering portion of the rubber sleeve. When the bone conduction vibrator vibrates, energy can be transferred from the annular covering portion of the rubber sleeve to the surface of the bone conduction earphone body in contact with the human body.

2. The sound leakage-proof bone conduction earphone according to claim 1, characterized in that: The clamping portion extends along the axial direction of the installation cavity.

3. The sound leakage-proof bone conduction earphone according to claim 1, characterized in that: A plurality of clamping parts are arranged in sequence at an annular interval along the inner side wall of the installation cavity.

4. The sound leakage-proof bone conduction earphone according to claim 1, characterized in that: The front side of the convex rib is formed with a guiding inclined surface extending obliquely downward from the outside to the inside.

5. The sound leakage-proof bone conduction earphone according to claim 1, characterized in that: The bone conduction earphone body has a first surface in contact with the human body and a second surface opposite to the first surface. A distance is set between the reverse side of the bone conduction vibrator and the inner side wall of the mounting cavity on the side where the second surface of the bone conduction earphone body is located.

6. The sound leakage-proof bone conduction earphone according to claim 5, characterized in that: The front side of the bone conduction vibrator contacts the inner side wall of the side where the first surface of the bone conduction earphone body is located.

7. The sound leakage-proof bone conduction earphone according to claim 6, characterized in that: The bone conduction earphone body includes a shell and a rubber sleeve, the installation cavity is formed on the shell, the front side of the shell has an opening that passes through the installation cavity, the rubber sleeve covers the opening, the back side of the bone conduction vibrator is arranged with a distance from the inner bottom wall of the shell, and the front side of the bone conduction vibrator is in contact with the inner top surface of the rubber sleeve.

8. The sound leakage-proof bone conduction earphone according to claim 7, characterized in that: The first surface is formed on a side of the rubber sleeve facing away from the shell, and the second surface is formed on a side of the shell facing away from the rubber sleeve.

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