Bone-conduction earphone capable of preventing sound leakageTechnical Field
The invention relates to the technology in the field of bone conduction ear phones, in particular to a sound leakage prevention bone conduction ear phone.
Background
The bone conduction earphone converts the electric signal into vibration signal, and through contact with human skin and bone, the sound wave is directly conducted to auditory nerve of brain with solid (non-air) as medium, which can prevent earphone from picking up unnecessary noise such as wind sound, etc. so that the sound becomes clear. However, the existing bone conduction earphone comprises a shell and bone conduction vibrators installed in the shell, the bone conduction vibrators and the shell are in large-area contact, when the bone conduction earphone is used, the large-area contact of the bone conduction vibrators and the shell can cause the bone conduction vibrators to excessively transmit vibration of the shell, so that the shell obtains a large amount of vibration energy, a large amount of sound is emitted from the vibration of the shell, the sound is leaked outside, confidentiality cannot be guaranteed, the sound in public places is leaked outside to affect others, and therefore, the bone conduction vibrators are suspended in the shell through the suspension support, but the phenomenon that the vibration of the bone conduction vibrators is weakened when the bone conduction vibrators work is caused by suspension of the bone conduction vibrators can occur, meanwhile, the suspension support enables the bone conduction vibrators to be incapable of being firmly fixed, the phenomenon that the bone conduction vibrators shake to cause faults is easy to occur, the suspension structure of the bone conduction vibrators is complex, the assembly manufacturing difficulty is high, and the design cost is high.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the drawbacks of the prior art, and its main object is to provide a sound-leakage-preventing bone conduction ear device, which reduces the contact area between the bone conduction oscillator and the housing of the bone conduction ear device main body, so as to reduce the vibration transmission of the bone conduction oscillator to the housing of the bone conduction ear device main body, thus reducing the vibration emission of sound from the housing of the bone conduction ear device main body, reducing the leakage of sound, so as to achieve the purpose of sound leakage prevention, preventing the sound from being obtained from the outside, preventing the phenomenon that the sound leakage in public places affects other people while having confidentiality, preventing the phenomenon that the vibration of the bone conduction oscillator is weakened when the bone conduction oscillator is suspended, and simultaneously, more firmly clamping and fixing the bone conduction oscillator, and preventing the phenomenon that the bone conduction oscillator shakes to cause defects.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A sound leakage prevention bone conduction earphone comprises a bone conduction earphone body, wherein the bone conduction earphone body is provided with a mounting cavity for mounting a bone conduction oscillator, the inside wall of the mounting cavity is convexly provided with a plurality of clamping parts which are arranged at intervals, the peripheral side wall of the bone conduction oscillator is limited by the clamping parts, so that the peripheral side wall of the bone conduction oscillator is not in direct contact with the bone conduction earphone body, and the surface of the bone conduction oscillator, which is away from the side of the bone conduction earphone body, which is in contact with a human body, is arranged at intervals with the inner wall of the mounting cavity.
As a preferred solution, the clamping portion extends in the axial direction of the mounting cavity.
As a preferable scheme, the clamping parts are sequentially arranged at annular intervals along the inner side wall of the mounting cavity.
As a preferable scheme, the clamping part is a convex rib, the convex rib is integrally formed and convexly arranged on the surface of the inner side wall of the mounting cavity, a clamping surface is arranged on one side of the convex rib, which faces the center of the mounting cavity, and the outer peripheral side wall of the bone conduction vibrator is limited by the clamping surface.
As a preferable scheme, the front surface of the convex rib is spaced from the top of the installation cavity, and the back surface of the convex rib extends to the bottom of the installation cavity.
As a preferable scheme, the front surface of the convex rib is provided with a guiding inclined surface extending downwards from outside to inside.
As a preferable scheme, the bone conduction earphone main body is provided with a first surface which is in contact with a human body and a second surface which is opposite to the first surface, and the back surface of the bone conduction vibrator is arranged at a distance from the inner side wall of the installation cavity on the side where the second surface of the bone conduction earphone main body is arranged.
As a preferable scheme, the front surface of the bone conduction oscillator is contacted with the inner side wall of the side where the first surface of the bone conduction earphone body is located.
As a preferable scheme, the bone conduction earphone main body comprises a shell and a rubber sleeve, the mounting cavity is formed on the shell, the front face of the shell is provided with an opening penetrating through the mounting cavity, the rubber sleeve is covered at the opening, the back face of the bone conduction vibrator is arranged at intervals between the inner bottom wall surface of the shell, and the front face of the bone conduction vibrator is in contact with the inner top surface of the rubber sleeve.
As a preferable scheme, the first surface is formed on one side of the rubber sleeve, which is opposite to the shell, and the second surface is formed on one side of the shell, which is opposite to the rubber sleeve.
Compared with the prior art, the invention has obvious advantages and beneficial effects, in particular, the technical proposal mainly comprises that the inner side wall of the installation cavity is convexly provided with a plurality of clamping parts which are arranged at intervals, and the outer peripheral side wall of the bone conduction oscillator is limited by the clamping parts, so that the outer peripheral side wall of the bone conduction oscillator is not in direct contact with the bone conduction earphone main body, and the surface of the bone conduction oscillator, which is opposite to the side of the bone conduction earphone main body, which is contacted with the human body, is arranged at intervals with the inner wall of the installation cavity, thus the side surface of the bone conduction oscillator is not in direct contact with the shell of the bone conduction earphone main body, the back surface of the bone conduction oscillator is not in contact with the shell of the bone conduction earphone main body, thereby reducing the contact area between the bone conduction oscillator and the shell of the bone conduction earphone main body, so can reduce the vibration transmission of bone conduction oscillator to the casing of bone conduction earphone main part, so, can reduce the sound and send from the casing vibration of bone conduction earphone main part, thereby the external leakage of sound has been reduced, in order to reach the purpose of preventing leakage sound, in order to prevent that sound can not by external acquisition, public occasion sound external leakage and influence other people's phenomenon also can not appear in the time of possessing the confidentiality, and, can not appear the unsettled phenomenon that leads to weakening the vibration of bone conduction oscillator during operation that leads to of bone conduction oscillator, can more firmly the fixed bone conduction oscillator of centre gripping simultaneously, can not appear the bone conduction oscillator and rock the phenomenon that causes badly, and structural design is simple, ingenious, rationally, the equipment manufacturing degree of difficulty and design cost have been reduced.
In order to more clearly illustrate the structural features, technical means, and specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the specific embodiments.
Drawings
FIG. 1 is a schematic perspective view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of another angular overall structure of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is another exploded view of an embodiment of the present invention;
FIG. 5 is a cross-sectional view of an embodiment of the present invention.
The attached drawings are used for identifying and describing:
10. bone conduction earphone main body 11 and mounting cavity
12. First surface 13, second surface
14. Shell 15, rubber sleeve
151. Annular cladding part 20, bone conduction vibrator
30. Spacing 40, ribs
41. Clamping surface 42, guiding bevel.
Detailed Description
Referring to fig. 1 to 5, specific structures of embodiments of the present invention are shown.
A sound leakage prevention bone conduction earphone comprises a bone conduction earphone body 10, wherein the bone conduction earphone body 10 is provided with a mounting cavity 11 for mounting a bone conduction oscillator 20, the bone conduction oscillator 20 is arranged in the mounting cavity 11, a plurality of clamping parts are arranged at intervals on the inner side wall of the mounting cavity 11 in a protruding mode, the outer peripheral side wall of the bone conduction oscillator 20 is limited by the clamping parts, so that the outer peripheral side wall of the bone conduction oscillator 20 is not in direct contact with the bone conduction earphone body 10, the space 30 between the surface of one side, which is opposite to the bone conduction earphone body 10, of the bone conduction oscillator 20 and the inner wall of the mounting cavity 11 is arranged, the side surface of the bone conduction oscillator 20 is not in direct contact with the bone conduction earphone body 10, the contact area between the bone conduction oscillator 20 and the bone conduction earphone body 10 is reduced, vibration transmission of the bone conduction oscillator 20 to the bone conduction earphone body 10 is reduced, vibration of the bone conduction earphone body 10 is reduced, leakage of sound is reduced, the phenomenon that the bone conduction oscillator 20 is not in contact with a human body is prevented from being caused, and simultaneously, the phenomenon that the bone conduction oscillator 20 is not in good in vibration is not in contact with the vibration is caused, and the situation that the bone conduction oscillator 20 is not in the vibration is well is suspended.
Preferably, in this embodiment, as shown in fig. 4, the mounting cavity 11 has a cylindrical structure, and the clamping portion extends along an axial direction of the mounting cavity 11. The plurality of clamping portions are arranged at annular intervals along the inner side wall of the mounting cavity 11 in sequence, so that the plurality of clamping portions can be respectively clamped and fixed on the outer peripheral side wall of the bone conduction oscillator 20, and the bone conduction oscillator 20 can be firmly clamped. The clamping part is a convex rib 40, the convex rib 40 is integrally formed and convexly arranged on the surface of the inner side wall of the mounting cavity 11, a clamping surface 41 is arranged on one side of the convex rib 40, which faces the center of the mounting cavity 11, and the outer peripheral side wall of the bone conduction oscillator 20 is limited by the clamping surface 41. The front surface of the rib 40 is formed with a guiding inclined surface 42 extending obliquely downwards from outside to inside, and the smooth installation of the bone conduction oscillator 20 can be facilitated by the arrangement of the guiding inclined surface 42. The front surface of the convex rib 40 is spaced from the top of the installation cavity 11, and the back surface of the convex rib 40 extends to the bottom of the installation cavity 11, so that the contact area between the convex rib 40 and the side wall of the installation cavity 11 can be reduced by the spacing between the front surface of the convex rib 40 and the top of the installation cavity 11, and the contact area between the side surface of the bone conduction vibrator 20 and the bone conduction earphone main body 10 can be further reduced, and the leakage of sound can be further reduced.
Preferably, in this embodiment, the bone conduction earphone body 10 has a first surface 12 that contacts the human body and a second surface 13 opposite to the first surface 12, and a space 30 is provided between the opposite surface of the bone conduction vibrator 20 and the inner side 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 oscillator 20 is contacted with the inner side wall of the side where the first surface 12 of the bone conduction earphone body 10 is located, so that the aim of bone conduction can be achieved by ensuring that the front surface of the bone conduction oscillator 20 is contacted with the rubber sleeve 15 and then contacted with the cartilage of the human face.
Preferably, in this embodiment, the bone conduction earphone body 10 includes a housing 14 and a rubber sleeve 15, the mounting cavity 11 is formed on the housing 14, the front surface of the housing 14 has an opening penetrating through the mounting cavity 11, the rubber sleeve 15 covers the opening, a space 30 between the back surface of the bone conduction vibrator 20 and an inner bottom wall surface of the housing 14 is arranged, the front surface of the bone conduction vibrator 20 contacts with an inner top surface of the rubber sleeve 15, the first surface 12 is formed on a side of the rubber sleeve 15 facing away from the housing 14, and the second surface 13 is formed on a side of the housing 14 facing away from the rubber sleeve 15.
Preferably, in this embodiment, six ribs 40 are provided, and the six ribs 40 are sequentially arranged on the inner side wall of the housing 14 at intervals along the ring shape, and of course, the ribs 40 are not limited to the above number, but may be other numbers of ribs 40, which are not described herein. The clamping part may be a cylindrical boss or an arc-shaped boss, so long as it can clamp the bone conduction transducer 20.
Preferably, in this embodiment, the rubber sleeve 15 is provided with an annular coating portion 151 protruding toward one side of the housing 14, and the annular coating portion 151 is coated on the outer peripheral sidewall of the bone conduction oscillator 20, so, the contact area between the bone conduction oscillator 20 and the rubber sleeve 15 can be increased by coating the annular coating portion 151 on the outer peripheral sidewall of the bone conduction oscillator 20, so that the vibration transmission of the bone conduction oscillator 20 to the rubber sleeve 15 is improved, and when the first surface 12 of the rubber sleeve 15 is directly contacted with a human body, the vibration energy can be almost completely released, the sound definition and quality are improved, and the hearing effect of a user is improved.
In summary, the design key point of the invention is that the clamping parts are arranged at a plurality of intervals on the inner side wall of the mounting cavity, and the outer side wall of the bone conduction oscillator is limited by the clamping parts, so that the outer side wall of the bone conduction oscillator is not directly contacted with the bone conduction earphone main body, and the interval between the surface of the bone conduction oscillator, which is opposite to the side of the bone conduction earphone main body, contacted with the human body and the inner wall of the mounting cavity is arranged, so that the side surface of the bone conduction oscillator is not directly contacted with the shell of the bone conduction earphone main body, the back surface of the bone conduction oscillator is not contacted with the shell of the bone conduction earphone main body, thereby reducing the contact area between the bone conduction oscillator and the shell of the bone conduction earphone main body, reducing the vibration transmission of the bone conduction oscillator to the shell of the bone conduction earphone main body, reducing the vibration emission of sound from the shell of the bone conduction earphone main body, thereby reducing the external leakage of sound, preventing the sound from being obtained, and simultaneously avoiding the influence of the external leakage of sound in public places, and weakening the phenomena of the sound in the bone conduction oscillator, and the bone conduction oscillator from being well-designed and being well-separated, and the bone conduction oscillator is well-designed, and the vibration structure is reduced.