CN114615602A - Bone conduction loudspeaker - Google Patents

Abstract

The application discloses bone conduction speaker includes: a housing; the energy conversion assembly is arranged in the shell and is used for generating vibration under the excitation of an electric signal; the vibration transmission component is used for transmitting the vibration generated by the energy conversion component to the attached skin; the vibration transmission assembly comprises a vibration transmission piece connected with the energy conversion assembly and an attaching piece arranged on the vibration transmission piece and used for attaching the skin; the attaching piece comprises a central attaching part fixedly connected with the vibration transmission piece and a peripheral attaching part which is arranged around the periphery of the central attaching part and connected with the outer edge of the central attaching part, and the central attaching part and the peripheral attaching part are attached to the skin together; the outer surface that central laminating portion is used for laminating skin is first face, and the outer surface that peripheral laminating portion is used for laminating skin is the second face, and first face is the plane, and the second face is the arc surface. Further, more vibration signals are transmitted into the cochlea through organism tissues and bones, so that the sound heard by the user is larger.

Description

A bone conduction speaker

technical field

The present application relates to the technical field of loudspeakers, and in particular, to a bone conduction loudspeaker.

Background technique

Generally, sound is transmitted to the ear through two transmission pathways, namely air conduction and bone conduction, which in turn produces hearing.

In the bone conduction pathway, the bone conduction vibration speaker can convert audio electrical signals into mechanical vibration signals, and transmit the vibration signals to the cochlea through biological tissues and bones, so that the user can hear the sound. Compared with the classic sound conduction method that generates sound waves through the diaphragm, bone conduction eliminates many steps of sound wave transmission, and can achieve clear sound restoration in noisy environments, and sound waves will not affect others due to diffusion in the air. .

However, the inventor of the present application found in the long-term research and development process that the sound of the currently common bone conduction speakers is relatively small, and the listening experience is poor.

SUMMARY OF THE INVENTION

The technical problem mainly solved by the present invention is how to improve the sound transmitted to the user's ear by the bone conduction speaker.

In order to solve the above-mentioned technical problems, a technical solution adopted in the present application is to provide a bone conduction speaker, which includes: a shell; The assembly is used to transmit the vibration generated by the transducer assembly to the attached skin; the vibration transmission assembly includes a vibration transmission member connected with the transducer assembly and a fitting provided on the vibration transmission member for fitting the skin The fitting part includes a central fitting part fixedly connected with the vibration transmission part and a peripheral fitting part arranged around the periphery of the central fitting part and connected with the outer edge of the central fitting part, the central fitting part and the peripheral fitting part. The joint parts fit the skin together; the outer surface of the central fit part used to fit the skin is the first surface, the outer surface of the peripheral fit part used to fit the skin is the second surface, the first surface is a plane, the second surface for the arc surface. Further, the area where the entire vibration transmission assembly fits with the user's skin is increased, so that more vibration signals are transmitted to the cochlea through the biological tissue and bone, so that the user can hear a louder sound.

In order to solve the above technical problem, another technical solution adopted in this application is to provide a bone conduction speaker, including: a shell; The assembly is used to transmit the vibration generated by the transducer assembly to the attached skin; the vibration transmission assembly includes a vibration transmission member connected with the transducer assembly and a fitting provided on the vibration transmission member for fitting the skin The fitting part includes a central fitting part fixedly connected with the vibration transmission part and a peripheral fitting part arranged around the periphery of the central fitting part and connected with the outer edge of the central fitting part, the central fitting part and the peripheral fitting part. The joint parts are attached to the skin together; the projection of the second surface on the plane where the first surface is located is roughly annular, and the first surface is circular. When the peripheral part is pressed by the skin, the vibration transmission member is attached to at least part of the peripheral part. The joint does not provide support. Further, the area where the entire vibration transmission assembly fits with the user's skin is increased, so that more vibration signals are transmitted to the cochlea through the biological tissue and bone, so that the user can hear a louder sound.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic three-dimensional structural diagram of an embodiment of a bone conduction sound device of the present application;

2 is a schematic three-dimensional structure diagram of an embodiment of the bone conduction speaker of the present application;

3 is a schematic diagram of an exploded structure of an embodiment of the bone conduction speaker of the present application;

FIG. 4 is a schematic cross-sectional structural diagram of an angle in an embodiment of the bone conduction speaker of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all the structures related to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms "first", "second" and "third" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" may expressly or implicitly include at least one of that feature. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the various components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The present application provides a bone conduction speaker 100 and a bone conduction sound generating device 200 with the bone conduction microphone 100 . FIG. 1 is a schematic diagram of the three-dimensional structure of an embodiment of the bone conduction sound generating device 200 provided by the present application, and FIG. 2 is a The application provides a schematic diagram of a three-dimensional structure in an embodiment of the bone conduction speaker 100 .

It should be noted that the bone conduction sound generating device 200 in the embodiments of the present application may be various devices with the function of bone conduction earphones, for example, it may be a bone conduction earphone, or glasses, earphones with the function of the bone conduction sound generating device. Wearing or hanging a fixing mechanism behind, a hat and headgear with the function of a bone conduction sound device, or other head-wearing engineering supplies, military supplies, or hearing aids such as hearing aids, etc., are not specifically limited here.

Wherein, the bone conduction sounding device 200 includes: a bone conduction speaker 100 and a fixing mechanism 210 . The fixing mechanism 210 acts on the bone conduction speaker 100, so that at least when the bone conduction speaker 100 is in use, the bone conduction speaker 100 is attached to the back of the user's auricle. It can be understood that, in different embodiments, the bone conduction speaker 100 may be at least one of an electromagnetic speaker, a piezoelectric speaker, and an electrostatic speaker. Specifically, the electromagnetic speaker may be a moving coil speaker or a moving iron speaker or the like.

It should be pointed out that the pinna is a part of the outer ear and is mainly composed of cartilage. In this embodiment, the bone conduction speaker 100 is attached to the back of the user's auricle, so that the bone conduction sound/vibration can be transmitted by the cartilage of the auricle.

Referring to FIGS. 2 to 4 , wherein FIG. 3 is a schematic diagram of an exploded structure of the bone conduction speaker 100 in an embodiment. FIG. 4 is a schematic cross-sectional structure diagram of an angle in an embodiment of the bone conduction speaker 100 . The bone conduction speaker 100 provided in the present application includes a casing 10 , a transducer assembly 20 disposed in the casing 10 , and a vibration transmission assembly 30 connected to the transducer assembly 20 .

Specifically, the casing 10 is used for accommodating and fixing the transducer assembly 20 and the vibration transmission assembly 30 , and is used as the shell of the bone conduction speaker 100 . Specifically, the housing 10 includes a body 12 and a base 14 , the body 12 is wrapped around the periphery of the transducer assembly 20 , the body 12 and the base 14 are clamped, or the body 12 and the base 14 are integrally formed by plastic. It can be understood that the housing 10 is used to carry and protect the transducer assembly 20 and the vibration transmission assembly 30 .

The transducer assembly 20 is arranged in the housing 10 and is used to generate vibration under the excitation of an electrical signal, and transmit the vibration to the vibration transmission assembly 30 . In one implementation, the transducer assembly 20 is fixedly connected to the vibration transmission assembly through the connecting member 40 . . Specifically, the transducer assembly 20 includes a magnetic circuit 22 , a voice coil 24 and a bracket 26 connected to the voice coil 24 . Specifically, the voice coil 24 is placed in the magnetic gap formed by the magnetic circuit 22 , and the voice coil 24 is connected to the bracket 26 ; the vibration transmission assembly 30 is connected to the bracket 26 to transmit the vibration from the bracket 26 .

The vibration transmission assembly 30 is used to transmit the vibration generated by the transducer assembly 20 to the skin to be fitted. Specifically, in one embodiment, the vibration transmission assembly 30 includes a vibration transmission member 32 connected to the energy-transducing member 20 and a fitting member 34 disposed on the vibration transmission member 32 for fitting the skin. The fitting member 34 is in contact with the back of the auricle, and the vibration generated by the transducer assembly 20 is transmitted to the auricle through the vibration transmitting member 32 and the fitting member 34 . Specifically, in the present application, the fitting member 34 includes a central fitting portion 342 that is fixedly connected to the vibration transmission member 32 and a peripheral fitting that surrounds the periphery of the central fitting portion and is connected to the outer edge of the central fitting portion 342 . The portion 344 is used to fit the back of the user's auricle when the bone conduction speaker 100 is in use. Wherein, the central fitting portion 342 and the peripheral fitting portion 344 are fitted to the skin together, that is, to be fitted to the back of the user's auricle, so as to increase the area where the bone conduction speaker 100 is fitted to the back of the user's auricle, thereby enabling sound/vibration to pass through. The back of the pinna allows the user to hear louder sounds.

It can be understood that the attachment member 34 is made of soft glue, and the vibration transmission member 32 is also made of plastic material, but the hardness of the vibration transmission member 32 is greater than that of the attachment member 34 . The fitting member 34 is fitted on the back of the user's auricle and can be subjected to force to produce slight deformation.

Optionally, in one embodiment, the central fitting portion 342 is at least partially a flat plane, and the peripheral fitting portion 344 is arranged around the periphery of the central fitting portion 342 and is an arc surface with a relatively small radian. Specifically, the peripheral fitting portion 342 can be elastically bent toward the housing 10 relative to the central fitting portion 342 under the pressure of the skin, so that the fitting member 34 has more area to fit the back of the user's auricle, so that The fitting member 34 can further fully contact the back of the user's auricle, thereby improving the efficiency of sound/vibration transmission by the fitting member 34 through the back of the user's auricle.

Referring to FIG. 3 and FIG. 4 at the same time, specifically, in one embodiment, the outer end surface of the vibration transmission member 32 and the inner end surface of the center fitting portion 342 are arranged to fit each other, so that the vibration generated by the transducer assembly 20 can be better The vibration is transmitted to the fitting member 34 through the vibration transmission member 32 . Further, specifically, the outer end surface of the vibration transmission member 32 is an arc-shaped surface protruding toward the center fitting portion 342 , and the thickness of the central fitting portion 342 gradually decreases in the direction toward the center line of the outer end surface of the vibration transmission member 32 . , so that the outer end surface of the center fitting portion 342 is flatter than the outer end surface of the vibration transmission member 32 so as to better contact the back of the user's auricle. Further, optionally, specifically, in an embodiment, the outer end surface of the vibration transmission member 32 includes a top surface 322 and the enclosing top surface is provided with an arc surface 324. Correspondingly, the inner end surface of the center fitting portion 342 includes a The top surface of the vibration member 32 is attached to the first attachment portion 3422 , and the second joint portion 3424 is attached to the circular arc surface 324 of the vibration transmission member 32 . By adopting the above structure, the bonding area between the vibration transmission member 32 and the center fitting portion 342 is increased, and the entire outer end surface of the vibration transmission member 32 is surrounded by the inner end surface of the central fitting portion 342 , and the vibration transmission effect is better.

Optionally, in one embodiment, the thickness of the central fitting portion 342 is greater than the thickness of the peripheral fitting portion 344. It can be understood that the central fitting portion 342 is the central portion where the bone conduction speaker 100 is fitted to the back of the user's auricle. When the fitting member 34 is in contact with the back of the user's auricle, the central fitting portion 342 is fitted to the periphery. Generally, the center of the center fitting portion 342 is the main force-bearing point in the process that the portion 344 cooperates with the back of the user's auricle to produce corresponding deformation. Therefore, the above structure is adopted, so that in the process of deformation of the abutting member 34, the central abutting portion 342 is slightly deformed and at the same time, the force is better transmitted to the peripheral abutting portion 344, so that the peripheral abutting portion 344 is correspondingly deformed , so as to improve the fit area of the entire fit piece 34 and the back of the user's auricle, and to form a good fit.

Optionally, in one embodiment, the width of the peripheral fitting portion 3424 of the fitting member 34 is greater than the thickness of the peripheral fitting portion 344 . In order to ensure that the peripheral fitting part 344 has an appropriate thickness, the width is made as large as possible, thereby increasing the area where the entire fitting part 34 can fit the back of the auricle.

Optionally, in one embodiment, the fitting member 34 further includes a cylindrical extension portion 346 connected to the outer edge of the peripheral fitting portion 344 and extending toward the housing. The cylindrical extension 346 is used to fix the entire fitting 34 on the housing 10 . Further, in one embodiment, the interior of the housing 10 is further provided with a receiving groove 16, and the end of the cylindrical extension portion 346 away from the peripheral fitting portion 344 is inserted into the receiving groove 16 for fixing. Optionally, the cylindrical extension 346 and the receiving groove 16 may adopt snap fit or interference fit, or the bone conduction speaker 100 of the present application further includes a sealant 50 filled in the receiving groove 16 , and the cylindrical shape is realized by the sealant 50 . The sealing connection between the extension portion 346 and the housing 10, in turn, has a good fixing effect. Other fixing forms may also be adopted in other embodiments, which are not specifically limited.

Optionally, in one embodiment, an annular groove 3462 is provided on the outer peripheral surface of the cylindrical extension 346, wherein the wall thickness of the cylindrical extension 346 in the annular groove 3462 is smaller than that of the cylindrical extension 346 in the annular groove. Wall thickness in areas other than 3462. With such a structure, the part of the peripheral fitting portion 344 above the annular groove 3462 can use the space formed by the annular groove 3462 as a deformation space when subjected to force, and generate corresponding deformation to better fit the back of the user's auricle .

Optionally, in one implementation, a plurality of sound guiding holes 3444 are provided on the peripheral fitting portion 344 , and the plurality of sound guiding holes 3444 are arranged around the central fitting portion 342 . With the above structure, the sound-inducing hole 3444 can effectively reduce the area of the non-contact area of the fitting member 34 and the vibration transmitting member 32 , which can make the air inside and outside the fitting member 34 penetrate, and reduce the air pressure difference between the inside and outside. On the other hand, the sound-inducing holes 3444 can lead out the sound waves formed by the vibration of the air inside the fitting 34 to the outside of the fitting 34, which is in contrast to the sound leakage sound waves formed by the vibration of the fitting 34 pushing the air outside the fitting 34. to reduce the amplitude of the leakage sound wave. Optionally, in one embodiment, a plurality of sound guide holes 3444 are arranged around the center fitting portion 342 at intervals. In another embodiment, a plurality of sound-inducing holes 3444 are evenly arranged around the center fitting portion 342 .

Optionally, in one embodiment, the fitting member 34 is integrally formed by plastic. It can be understood that when the fitting member 34 includes multiple parts, the multiple parts are integrally formed with plastic, for example, the central fitting portion 342 and the peripheral fitting portion 344 are integrally formed with plastic. For another example, in the embodiment in which the abutment member 34 includes a central abutment portion 342 , a peripheral abutment portion 344 , and a cylindrical extension portion 346 , the central abutment portion 342 , the peripheral abutment portion 344 , and the cylindrical extension portion 346 The three parts are integrally formed by plastic. In other embodiments, the plurality of components of the fitting member 34 may also adopt other splicing and fixing methods, which are not necessarily limited to being integrally formed of plastic.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims (11)

1. A bone conduction speaker, comprising: case; a transducer assembly, which is arranged in the casing and is used to generate vibration under the excitation of an electrical signal; a vibration-transmitting component for transmitting the vibration generated by the transducer component to the attached skin; It is characterized in that, The vibration transmission assembly includes a vibration transmission member connected to the energy conversion assembly and a fitting member disposed on the vibration transmission member and used for fitting the skin; the fitting member includes a vibration transmission member connected to the vibration transmission member. A central abutting portion that is fixedly connected to a piece and a peripheral abutting portion that is arranged around the periphery of the central abutting portion and connected to the outer edge of the central abutting portion, the central abutting portion and the peripheral abutting portion The outer surface of the central abutting part used to fit the skin is the first surface, and the outer surface of the peripheral abutting part used to fit the skin is the second surface, The first surface is a plane, and the second surface is an arc surface. 2. The bone conduction speaker according to claim 1, wherein: The projection of the second surface on the plane where the first surface is located is substantially circular, the first surface is circular, and the ring width of the circular ring is smaller than the radius of the circle. 3. The bone conduction speaker according to claim 1, wherein: When the peripheral fitting portion is pressed, the vibration transmission member does not provide support for at least part of the peripheral fitting portion. 4. The bone conduction speaker according to claim 1, wherein: The outer peripheral part attaching part and the vibration transmission member do not form a direct connection. 5. The bone conduction speaker according to claim 1, wherein: The peripheral fitting part is provided with a sound guiding hole; the sound guiding hole is arranged on the side of the peripheral fitting part close to the central fitting part. 6. The bone conduction speaker according to claim 1, wherein: The thickness of the center fitting portion gradually decreases in the direction toward the center line of the outer end surface of the vibration transmission member. 7. The bone conduction speaker according to claim 1, wherein: The fitting includes a cylindrical extension connected to the outer edge of the peripheral fitting and extending toward the housing. 8. The bone conduction speaker according to claim 7, wherein: The projection of the cylindrical extension portion on the plane where the first surface is located is within the projection of the peripheral fitting portion on the plane where the first surface is located. 9. The bone conduction speaker according to claim 7, wherein: The thickness of one end of the cylindrical extension part connected to the peripheral fitting part is smaller than the thickness of the other end thereof. 10. A bone conduction speaker comprising: case; a transducer assembly, which is arranged in the casing and is used to generate vibration under the excitation of an electrical signal; a vibration-transmitting component for transmitting the vibration generated by the transducer component to the attached skin; It is characterized in that, The vibration transmission assembly includes a vibration transmission member connected to the energy conversion assembly and a fitting member disposed on the vibration transmission member and used for fitting the skin; the fitting member includes a vibration transmission member connected to the vibration transmission member. A central abutting portion that is fixedly connected to a piece and a peripheral abutting portion that is arranged around the periphery of the central abutting portion and connected to the outer edge of the central abutting portion, the central abutting portion and the peripheral abutting portion The second surface is approximately in the shape of a circular shape on the plane where the first surface is located, and the first surface is in a circular shape, and the peripheral part is attached to the skin by the skin. Under pressure, the vibration transmission member does not provide support for at least part of the peripheral abutting portion. 11. The bone conduction speaker according to claim 10, wherein: The outer end surface of the vibration transmission member is an arc-shaped surface protruding toward the center fitting portion.

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