CN215835547U

CN215835547U - Bone conduction sound generating device and wearable equipment

Info

Publication number: CN215835547U
Application number: CN202122192733.8U
Authority: CN
Inventors: 沈佳龙; 曹洪斌
Original assignee: Suzhou Suoye Electronic Technology Co ltd
Current assignee: Suzhou Suoye Electronic Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-15
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a bone conduction sound production device and wearable equipment, wherein the bone conduction sound production device comprises a shell and a cavity, wherein the shell is provided with the cavity; a vibrating assembly disposed within the cavity; and the first cover body is arranged at one end of the shell, which deviates from the human body, and is elastically connected with the shell, so that the sound leakage is effectively reduced. By applying the wearable device with the bone conduction sounding device, the limitation on the application occasions of the wearable device is broken through by less sound leakage effects, and the popularization of the bone conduction technology is facilitated.

Description

Bone conduction sound generating device and wearable equipment

Technical Field

The utility model relates to the technical field of bone conduction, in particular to a bone conduction sound generating device and wearable equipment.

Background

Bone conduction is a sound conduction mode, that is, sound is converted into mechanical vibration with different frequencies, and sound waves are transmitted through the skull, the bone labyrinth, the lymph fluid of the inner ear, the spiral organ and the auditory center of a human body. Compared with the traditional sound conduction mode of generating sound waves through a sound film, the bone conduction mode omits a plurality of sound wave transmission steps, can realize clear sound restoration in a noisy environment, and does not influence other people due to the fact that the sound waves are diffused in the air.

The earphone manufactured by applying the bone conduction sounding technology is called as follows: bone conduction earphone, the conduction of its sound wave is different with ordinary pleasant formula, does not need the vibration of eardrum, but directly passes to auditory nerve through the bone, has both improved the travelling comfort, has protected user's hearing again, can also make the user directly hear external sound clearly, has its unique superiority, but present most bone conduction earphone all has comparatively serious sound leakage phenomenon, this application scenario that has restricted bone conduction earphone greatly, if can't use in quiet occasion, influence the popularization of bone conduction technique.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bone conduction sound production device and wearable equipment, which can effectively reduce sound leakage.

In order to solve the above technical problem, in one aspect, the present invention provides a bone conduction sound generating apparatus, including:

a housing configured with a cavity;

a vibrating assembly disposed within the cavity; and

the first cover body is arranged at one end of the shell, which deviates from the human body, and is elastically connected with the shell.

Preferably, a buffer member is arranged between the shell and the first cover body, and the buffer member is arranged at one end far away from the human body.

Preferably, the buffer member is made of an elastic material.

Preferably, the elastic material includes, but is not limited to, silicone, rubber, and plastic.

Preferably, the vibration assembly includes an exciter and an elastic member connected between the exciter and the housing, and the elastic member is disposed at one end of the housing near the human body.

Preferably, the actuator includes a magnetic circuit assembly connected to the elastic member, and a voice coil assembly disposed opposite to the magnetic circuit assembly.

Preferably, the voice coil assembly comprises a coil, a first magnetic conducting member and a first magnetic member, the first magnetic conducting member is fixed in the cavity, and the coil and the first magnetic member are arranged on one side of the first magnetic conducting member close to the magnetic circuit assembly;

the magnetic circuit assembly comprises a second magnetic conduction piece and a second magnetic piece, and the second magnetic conduction piece is connected between the elastic piece and the second magnetic piece;

the first magnetic part and the second magnetic part are oppositely arranged in the same pole, and the coil drives the second magnetic part to drive the elastic part to vibrate through a magnetic field generated after the coil is electrified.

Preferably, a low-frequency adjusting part is arranged between the second magnetic conducting part and the elastic part.

Preferably, the bone conduction sound-generating device further comprises a second cover body arranged at one end of the shell close to the human body.

On the other hand, the utility model further provides wearable equipment comprising the bone conduction sounding device.

Compared with the prior art, the utility model has the following advantages:

according to the bone conduction sounding device and the wearable equipment, the first cover body and the shell are in elastic connection, the vibration component and the first cover body deviating from the human body are completely isolated, and vibration cannot be transmitted to the first cover body or a small amount of vibration is transmitted to the first cover body, so that vibration leakage of the cover body deviating from one side of the human body is effectively reduced, the limitation of application occasions of the bone conduction sounding device is broken, the structure of the device is simple, the implementation is easy, the production cost is low, and the popularization of a bone conduction technology is facilitated.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the utility model as a matter of case. In the drawings:

fig. 1 is a cross-sectional view of a bone conduction sound generator of the present invention;

fig. 2 is a schematic structural view of the elastic member in the present invention.

Shown in the figure:

1. a housing; 11. a cavity; 12. an annular groove; 21. an elastic member; 22. a coil; 23. a first magnetically conductive member; 24. a first magnetic member; 25. a second magnetic conductive member; 26. a second magnetic member; 27. a low frequency adjustment member; 211. an external component; 212. an internal component; 213. a connecting assembly; 3. a first cover body; 4. a second cover body; 5. a buffer.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the bone conduction sound generating apparatus according to a preferred embodiment of the present invention includes a housing 1 configured with a cavity 11, a vibration component disposed in the cavity 11, a first cover 3 disposed at an end of the housing 1 away from a human body and elastically connected to the housing 1, and a second cover 4 disposed at an end of the housing 1 close to the human body.

The first cover body 3 and the second cover body 4 are arranged oppositely, when in use, the second cover body 4 is directly or indirectly contacted with the skin of a human body, and the first cover body 3 is arranged towards the outside of the human body. Be provided with bolster 5 between casing 1 and the first lid 3, bolster 5 sets up in keeping away from human one end to keep apart casing 1 and first lid 3, make unable or less transmission of vibration to first lid 3, the vibration of buffering and reduction first lid 3, thereby reduce bone conduction sound generating mechanism's sound leakage. Further, the buffering member 5 is made of an elastic material, the elastic material includes but is not limited to silicone, rubber, plastic, etc., and the material having the buffering effect can be disposed between the casing 1 and the first cover 3 as the buffering member 5. The shell 1, the buffer piece 5 and the first cover body 3 can be fixed by adopting glue; the shell 1 and the buffer piece 5 can also be molded in a double-shot injection molding mode and then are fixedly connected with the first cover body 3 by glue; the first cover body 3 and the buffer piece 5 can also be molded in a double-shot injection molding mode and then are fixedly connected with the shell 1 by glue; alternatively, the case 1, the cushion member 5, and the first cover 3 may be directly molded by two-shot molding. Of course, other fixing methods can be adopted, and only the sealing and fixing among the housing 1, the buffer 5 and the first cover 3 are required to be ensured.

In this embodiment, the vibration assembly includes an exciter and an elastic member 21 connected between the exciter and the housing 1, and the elastic member 21 is disposed at one end of the housing 1 near the human body.

As shown in fig. 2, the elastic member 21 is a hollow structure and includes an outer member 211, an inner member 212, and a plurality of connecting members 213 connected between the outer member 211 and the inner member 212, wherein the outer member 211 is connected to the housing 1, and the inner member 212 is connected to the actuator. For better mounting of the elastic element 21, an annular groove 12 may be provided along the circumferential direction of the port at the end of the housing 1 close to the human body for embedding the outer member 211 of the elastic element 21. The second cover 4 is also embedded in the annular groove 12, and the outer component 211 of the elastic element 21 is firmly abutted between the shell 1 and the second cover 4; in another embodiment, the annular groove 12 can be eliminated, so that the cover 4, the elastic element 21 and the outer edge of the housing 1 are flush.

The actuator includes a magnetic circuit assembly connected to the inner member 212 of the elastic member 21, and a voice coil assembly disposed opposite the magnetic circuit assembly. The voice coil assembly includes a coil 22, a first magnetic conducting member 23 and a first magnetic member 24, the first magnetic conducting member 23 is fixed in the cavity 11 by welding or bonding, that is, on the inner side wall of the housing 1, the shape of the first magnetic conducting member 23 is not limited, and the first magnetic conducting member may be plate-shaped, bowl-shaped, or other shapes. The coil 22 and the first magnetic member 24 are disposed on one side of the first magnetic conductive member 23 close to the magnetic circuit assembly, and preferably, the coil 22 is disposed around the first magnetic member 24; the magnetic circuit assembly includes a second magnetic conductive member 25 and a second magnetic member 26, the second magnetic conductive member 25 is connected to the inner member 212 of the elastic member 21 by bonding or welding, and the shape of the second magnetic conductive member is not limited, and may be plate-shaped, bowl-shaped, or other shapes. The second magnetic member 26 is connected to the second flux guide 25 on the side thereof adjacent to the voice coil assembly. The first magnetic part 24 and the second magnetic part 26 are arranged oppositely in the same polarity, and when the power is not on, the sum of the repulsive force between the second magnetic part 26 and the first magnetic part 24, the attractive force between the second magnetic part 26 and the first magnetic conductive part 23 and the attractive force between the first magnetic part 24 and the second magnetic conductive part 25 is equal to maintain the static balance of the magnetic force, so that the optimal fidelity effect is achieved. When the coil 22 is energized, the generated magnetic field breaks the static equilibrium, and drives the second magnetic member 26 to drive the elastic member 21 to vibrate up and down. Further, a low-frequency adjusting member 27 may be disposed between the second magnetic conductive member 25 and the elastic member 21 to adjust the effective vibration area of the elastic member 21, so as to adjust the resonance frequency point of the apparatus, so that the apparatus transmits low-frequency signals and has moderate transmission amplitude, thereby equalizing the whole voice frequency band. In order to ensure normal vibration of the elastic member 21, a certain gap space may be provided in the second housing 1 for the elastic member 21 to vibrate.

When playing audio, the vibration component generates vibration, which is transmitted to the second cover 4 and the housing 1 through the elastic member 21, and the vibration is transmitted to the human body through directly or indirectly contacting the second cover 4. When vibration is transmitted to the first cover body 3 through the shell 1, the vibration is blocked by the buffer piece, and all or most of vibration energy is buffered, so that the vibration cannot be transmitted to the first cover body 3 or is transmitted to the first cover body 3 only in a small amount, the sound leakage effect of the bone conduction sound production device is reduced, and the acoustic performance of a product is improved.

The utility model further provides wearable equipment, which applies the bone conduction sounding device, so that the performance of the equipment is improved, and the use feeling of a user is improved.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicants be construed as having contemplated such subject matter as being part of the disclosed subject matter.

Claims

1. A bone conduction sound generating device, comprising:

a housing (1) provided with a cavity (11);

a vibrating assembly disposed within the cavity (11); and

the first cover body (3) is arranged at one end, deviating from the human body, of the shell body (1) and is elastically connected with the shell body (1).

2. The bone conduction sound production device according to claim 1, wherein a buffer member (5) is disposed between the housing (1) and the first cover body (3), and the buffer member (5) is disposed at an end away from a human body.

3. Bone conduction sound emitting device according to claim 2, characterized in that the buffer (5) is made of an elastic material.

4. The bone conduction sound generator of claim 3, wherein the elastic material includes but is not limited to silicone, rubber, plastic.

5. A bone conduction sound emitting device according to any one of claims 1-4, wherein the vibration assembly comprises an exciter and a resilient member (21) connected between the exciter and the housing (1), the resilient member (21) being arranged at an end of the housing (1) near the human body.

6. The bone conduction sound generating apparatus according to claim 5, wherein the actuator includes a magnetic circuit assembly connected to the elastic member (21), and a voice coil assembly disposed opposite to the magnetic circuit assembly.

7. The bone conduction sound generating device according to claim 6, wherein the voice coil assembly comprises a coil (22), a first magnetic conductive member (23) and a first magnetic member (24), the first magnetic conductive member (23) is fixed in the cavity (11), and the coil (22) and the first magnetic member (24) are arranged on one side of the first magnetic conductive member (23) close to the magnetic circuit assembly;

the magnetic circuit assembly comprises a second magnetic conductive part (25) and a second magnetic part (26), wherein the second magnetic conductive part (25) is connected between the elastic part (21) and the second magnetic part (26);

the first magnetic part (24) and the second magnetic part (26) are oppositely arranged in the same pole, and the coil (22) drives the second magnetic part (26) to drive the elastic part (21) to vibrate through a magnetic field generated after the coil is electrified.

8. Bone conduction sound-emitting device according to claim 7, characterized in that a low frequency adjustment (27) is provided between the second magnetically conductive member (25) and the elastic member (21).

9. A bone conduction sound emitting device according to any one of claims 1-4, wherein the bone conduction sound emitting device further comprises a second cover (4) disposed at an end of the housing (1) near the human body.

10. A wearable device comprising the bone conduction sound emitting apparatus of any of claims 1-9.