CN110418235B - Sound producing device - Google Patents

Abstract

The invention relates to a sound generating device, which comprises a first sound generating body, a second sound generating body and a sound generating body, wherein the first sound generating body is used for converting an audio frequency electric signal into a mechanical oscillation signal and forming a sound wave which is easy to transmit to human ears; the second sound producing body, the second sound producing body with first sound producing body links to each other for receive the mechanical oscillation signal of first sound producing body transmission and form the sound wave easily to the transmission of people's ear, first sound producing body in the invention turns into mechanical oscillation signal and forms the sound wave easily to the transmission of people's ear, to auricle transmission sound, and first sound producing body transmits mechanical oscillation signal to the second sound producing body simultaneously, further produces the sound wave through the second sound producing body, and two sets of sound sources act on the auricle simultaneously and can reduce the sound leakage under equal hearing, effectively improve tone quality.

Description

Sound producing device

Technical Field

The invention belongs to the technical field of bone conduction and sound transmission, and particularly relates to a sound production device.

Background

The human body collects sound waves from the periphery of the human ear and the surrounding environment through the connective tissue of the outer ear and the external auditory canal. The sound wave can be conducted through air or contacted with the periphery of the human ear to be coupled into the external auditory canal, directly stimulates the ossicles through the skull, the jawbone and the bone labyrinth or collects and amplifies the sound wave signal by the tympanic membrane and transmits the signal to the ossicles, and then reaches the inner ear, and transmits the sound wave through the lymph fluid transmission of the inner ear, the screw organ, the auditory nerve and the auditory center.

The external auditory canal is fully opened in the process that the human ear obtains the sense of hearing under the natural condition, the traditional in-ear type, semi-in-ear type, earplug type, ear-hanging type and head-wearing type earphones use the vibrating diaphragm and the accessory mechanism thereof as main sound production devices, and the air oscillation formed by the vibrating diaphragm needs a closed air cavity body close to the periphery of the human ear to transmit sound waves and to swell the tympanic membrane, so that the external auditory canal is covered or blocked at different degrees, thereby generating the uncomfortable feeling of long-term wearing, and isolating the sense of hearing of the human ear to the surrounding environment. The existing bone conduction earphone has the defects of serious sound leakage, unsuitability for long-time wearing and the like.

Disclosure of Invention

The invention provides a sound production device which is used for solving the technical problem of serious sound leakage in the prior art.

The present invention provides a sound generating apparatus, including:

a first sound emitter for converting an audio electrical signal into a mechanical oscillation signal and forming a sound wave that is easily transmitted to the human ear;

and the second sounding body is connected with the first sounding body and used for receiving the mechanical oscillation signal transmitted by the first sounding body and forming sound waves which are easy to transmit to human ears.

Preferably, the first sound generating body is located in front of the auricle, and the first sound generating body extends to contact the tragus, the wall of the external auditory canal or cover the external auditory meatus, and the second sound generating body is located behind the auricle; or after first sound production body is in the auricle, second sound production body is in the auricle before, just second sound production body extends to contact tragus, external ear canal wall or covers the external auditory meatus.

Preferably, the sound generating device further comprises a first connecting piece, one end of the first connecting piece is connected with the first sound generating body, and the other end of the first connecting piece is connected with the second sound generating body and used for fixing the first sound generating body and the second sound generating body and transmitting the mechanical oscillation signal generated by the first sound generating body to the second sound generating body.

Preferably, the material of the first connecting piece is a flexible plastic material.

Preferably, the sound generating device further comprises a second connecting piece, one end of the second connecting piece is connected with the first sound generating body, and the other end of the second connecting piece is connected with the second sound generating body and is also used for transmitting the mechanical oscillation signal generated by the first sound generating body to the second sound generating body.

Preferably, first connecting piece with the auricle upper edge contacts, the second connecting piece with the auricle lower limb contacts, first connecting piece, first sound production body, second connecting piece and second sound production body form the closed ring body that encloses in the auricle periphery in order end to end.

Preferably, the first connecting piece includes a first connecting portion, a second connecting portion and a foldable portion for unfolding or folding the first connecting portion and the second connecting portion, one end of the first connecting portion is connected to the first sounding body, the other end of the first connecting portion is connected to one end of the foldable portion, one end of the second connecting portion is connected to the second sounding body, and the other end of the second connecting portion is connected to the other end of the foldable portion.

Preferably, in the folded state of the first connecting member, the first sounding body is attached to the auricle under the support of the first connecting portion, and the second sounding body is attached to the auricle under the support of the second connecting portion; when the first connecting piece is in an unfolded state, the first sounding body is suspended outside the auricle under the support of the first connecting part, and the second sounding body is attached in front of the auricle under the support of the second connecting part.

Preferably, the first sound emitter includes:

the electroacoustic transducer is piezoelectric ceramic containing electrodes and is used for converting an audio electrical signal into a mechanical oscillation signal and producing sound;

the input end of the audio electric signal input piece inputs an audio electric signal, and the output end of the audio electric signal input piece is electrically connected with the electroacoustic transducer and used for accessing the audio electric signal;

the electroacoustic transducer and the audio electrical signal input piece are contained in the first shell.

Preferably, the second sounding body includes:

the inner core receives a mechanical oscillation signal sent by the electroacoustic transducer and transmits sound;

and the second shell is a flexible shell, wraps the outer surface of the inner core and is attached to the auricle.

According to the embodiment of the invention, the first sounding body converts the audio electrical signal into the mechanical oscillation signal and forms the sound wave which is easy to transmit to human ears, the sound is transmitted to auricles, meanwhile, the mechanical oscillation signal is transmitted to the second sounding body by the first sounding body, the sound wave is further generated by the second sounding body, and the two groups of sound sources simultaneously act on the auricles, so that the sound leakage can be reduced under the same hearing sense, and the sound quality is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view illustrating a wearing effect of an ear-mounted sound generating device according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the first embodiment of the present invention illustrating an ear-mounted sound generating device fixed to an auricle model;

FIG. 3 is a schematic structural diagram of an ear-mounted sound generating device according to a first embodiment of the present invention;

FIG. 4 is an exploded view of the ear-mounted sound generator according to the first embodiment of the present invention;

FIG. 5 is a cross-sectional view showing the layout structure of the connection member according to the first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an ear-mounted sound generating device fixed to an auricle model according to a second embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an ear-hook type sound generating device according to a second embodiment of the present invention;

FIG. 8 is an exploded view of an ear-mounted sound generator according to a second embodiment of the present invention;

fig. 9 is a schematic structural view illustrating a folded state of an ear clip type sound generating device according to a third embodiment of the present invention;

fig. 10 is an exploded view of a third embodiment of an ear clip type sound generating device according to the present invention;

fig. 11 is a structural view illustrating an unfolded state of an ear-clip type sound generating device according to a third embodiment of the present invention;

fig. 12 is a schematic view of a third embodiment of an ear clip type sound generating device according to the present invention;

fig. 13 is a schematic view of a third embodiment of an ear-clip type sound generating device according to the present invention;

fig. 14 is a test chart of a first sounding body in the first embodiment of the present invention;

fig. 15 is a test chart of a second sounding body in the first embodiment of the present invention;

fig. 16 is a test chart of a first sounding body in a second embodiment of the present invention;

fig. 17 is a test chart of a second sounding body (with a second casing) in the second embodiment of the present invention;

fig. 18 is a test chart of a second sounding body (without a second housing) in the second embodiment of the present invention.

Description of the main elements:

first embodiment

1A, a first sound emitter; 2A, a second sounding body; 3A, a first connecting piece; 4A, a second connecting piece; 11A, an electroacoustic transducer; 12A, an audio electric signal input piece; 13A, a first housing; 21A, a first inner core; 22A, a second inner core; 23A, a second housing; 31A, a rigid wire; 32A, a flexible coating sleeve;

second embodiment

1B, a first sounding body; 2B, a second sounding body; 3B, a first connecting piece; 4B, a second connecting piece; 2B, a second sounding body; 21B, a first inner core; 22B, a second inner core; 23B, a second housing; 231B, a first contact portion; 232B, a second contact part; 233B and a third contact portion;

third embodiment

1C, a first sound emitter; 2C, a second sounding body; 3C, connecting pieces; 11C, an electroacoustic transducer; 12C, an audio electrical signal input piece; 13C, a first housing; 21C, an inner core; 22C, a second housing; 31C, a first connection portion; 32C, a second connecting part; 33C, a foldable part.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention discloses a sound generating device, which comprises a first sound generating body, a second sound generating body and a sound generating body, wherein the first sound generating body is used for converting an audio electric signal into a mechanical oscillation signal and forming sound waves which are easy to transmit to human ears; and the second sounding body is connected with the first sounding body and used for receiving the mechanical oscillation signal transmitted by the first sounding body and forming sound waves which are easy to transmit to human ears. Compared with the prior art, the first sounding body converts the audio electrical signal into the mechanical oscillation signal and forms the sound wave which is easy to transmit to human ears, the sound is transmitted to auricles, meanwhile, the mechanical oscillation signal is transmitted to the second sounding body by the first sounding body, the sound wave is further generated by the second sounding body, and the two groups of sound sources simultaneously act on the auricles, so that the sound leakage can be reduced under the same auditory sense, and the tone quality is effectively improved.

The first sounding body and the second sounding body are respectively positioned in front of and behind the ear, specifically, the first sounding body is positioned in front of the auricle, extends to contact with the tragus, the wall of the external auditory canal or covers the external auditory meatus, and the second sounding body is positioned behind the auricle; or after first sound production body is in the auricle, second sound production body is in the auricle before, just second sound production body extends to contact tragus, external ear canal wall or covers the external auditory meatus.

First embodiment

Referring to fig. 2-4, the present invention discloses an ear-hanging type sound generating device, which comprises:

the first sounding body 1A is used for converting an audio electrical signal into a mechanical oscillation signal and forming a sound wave which is easy to transmit to human ears;

specifically, the first sounding body 1A includes an electroacoustic transducer 11A, an audio electric signal input 12A, and a first housing 13A. The electroacoustic transducer 11A is a piezoelectric ceramic containing electrodes, and is used for converting an audio electrical signal into a mechanical oscillation signal and generating sound; the electroacoustic transducer 11A in this embodiment is a strip-shaped thin type electroceramic including electrodes, and the shape of the electroceramic may be changed according to the requirement.

The input end of the audio electric signal input part 12A inputs an audio electric signal, and the output end of the audio electric signal input part 12A is electrically connected with the electroacoustic transducer 11A and used for accessing the audio electric signal;

the audio electrical signal input 12A includes the following three forms:

1) the audio electric signal input part 12A is a wire connected with a sound source to transmit audio electric signals, and the ear-hanging type sound production device formed by the scheme is suitable for wired earphones;

2) the audio electric signal input part 12A is a Bluetooth transmission module for transmitting audio electric signals, and the ear-hanging type sound production device formed by the scheme is suitable for a wireless earphone;

3) the audio signal input unit 12A is a sound source module of a sufficient size and size, and generates an audio signal independently and sounds.

The first casing 13A is a soft shell, the electroacoustic transducer 11A and the audio electrical signal input element 12A are accommodated in the first casing 13A, and the first casing 13A is attached to the auricle.

The second sounding body 2A is connected with the first sounding body 1A and is used for receiving the mechanical oscillation signal transmitted by the first sounding body 1A and forming sound waves easy to transmit to human ears;

specifically, the second sounding body 2A includes an inner core and a second outer shell 23A, the inner core receives the mechanical oscillation signal emitted by the electroacoustic transducer 11A and transmits sound; the second shell 23A is a flexible shell, and covers the outer surface of the inner core and is attached to the auricle.

The material of the second sounding body, the connection mode of the second sounding body and the first connecting piece and the second connecting piece, and the overall peripheral size and the structure of the second sounding body formed by the material all influence the hearing of human ears, and are specifically embodied as the difference of volume and the difference of frequency response.

The inner core is a spherical oscillating body formed by integrally molding a single or composite material, the spherical oscillating body can realize a better transfer process after receiving a mechanical oscillation signal, and the inner core is made of a rigid material, so that the sound leakage of the mechanical oscillation signal is reduced. The second shell 23A is a soft shell, and covers the inner core to protect the inner core and make the inner core more comfortable when attached to the auricle. The inner core can be directly realized the function by first connecting piece 3A and second connecting piece 4A's afterbody, and its shape can set up according to the globular oscillating body in the manufacturing process, also can directly extend according to first connecting piece 3A and second connecting piece 4A's structure, need not to add new inner core structure in second shell 23A, has reduced the consumptive material practicality, has improved production efficiency.

First connecting piece 3A, first connecting piece 3A hangs in the auricle, and first connecting piece 3A's one end links to each other with first sound production body 1A, and first connecting piece 3A's the other end links to each other with second sound production body 2A, and first connecting piece 3A is used for connecting first sound production body 1A and second sound production body 2A in order to realize the transmission of mechanical oscillation signal.

As shown in fig. 1, the first connecting member 3A mainly plays a role in fixing the first sounding body 1A and the second sounding body 2A, the first connecting member 3A is suspended at the upper edge of the auricle, and the first sounding body 1A and the second sounding body 2A are respectively suspended behind the ear and in front of the ear, so that the primary fixation of the first sounding body 1A and the second sounding body 2A can be achieved.

Compared with the prior art, the first sounding body 1A converts the audio electrical signal into the mechanical oscillation signal and forms the sound wave which is easy to transmit to human ears, the sound is transmitted to auricles, meanwhile, the mechanical oscillation signal is transmitted to the second sounding body 2A by the first sounding body 1A, the sound wave is further generated by the second sounding body 2A, and the two groups of sound sources simultaneously act on the auricles, so that the sound conduction effect can be enhanced, the sound leakage is reduced, and the tone quality is effectively improved. First connecting piece 3A has realized the fixed of first sound production body 1A with second sound production body 2A through hanging in the auricle, and fixed mode is comfortable, is suitable for wearing for a long time.

Referring to fig. 5, the ear-hanging sound generating device further includes a second connecting member 4A, one end of the second connecting member 4A is connected to the first sound generating body 1A, and the other end of the second connecting member 4A is connected to the second sound generating body 2A, and is also used for transmitting the mechanical oscillation signal generated by the first sound generating body 1A to the second sound generating body 2A.

Specifically, the first connecting piece 3A and the second connecting piece 4A both comprise a rigid wire 31A and a flexible coating sleeve 32A, one end of the rigid wire 31A is in contact with the electroceramic, and the other end of the rigid wire 31A is in contact with the inner core, so that mechanical oscillation signals can be better transmitted, the sound conduction effect is enhanced, and sound leakage and oscillation loss are reduced; meanwhile, the rigid wire 31A can be deformed as required according to the shape of the auricle, so as to achieve a better fixing effect. The flexible covering 32A avoids damage to the skin and may provide a more comfortable wearing experience. The first housing 13A, the second housing 23A, and the flexible covering 32A may be integrally injection molded.

In this embodiment, the first connecting part 3A is hung on the upper edge of the auricle, the second connecting part 4A is contacted with the lower edge of the auricle, and the first connecting part 3A, the first sounding body 1A, the second connecting part 4A and the second sounding body 2A are sequentially connected end to form a closed loop around the periphery of the auricle, so that the first sounding body 1A and the second sounding body 2A are hung and stably fixed by the closed loop, and are respectively in close contact with the corresponding external ear parts. Because the ears are not on the same plane and are stressed in different directions, the connecting link itself must have plasticity if only hung on the connecting link. Basically, the sound is not clear to hear, so the first sound generating body 1A and the second sound generating body 2A should be in close contact with the external ear part to achieve the solid bone conduction sound transmission effect.

Specifically, the first connecting piece 3A and the second connecting piece 4A are matched with each other to connect the first sounding body 1A and the second sounding body 2A to form a closed ring body, and the closed ring body can be hung on the periphery of the auricle. Without any other auxiliary structure, the stable sound transmission of the first sound generating body 1A and the second sound generating body 2A can be realized.

In one embodiment of the present disclosure, the first sounding body 1A is located in front of the auricle, and the second sounding body 2A is located behind the auricle. First sound generating body 1A is close external auditory canal or contact tragus, then first sound generating body 1A plays primary role, and second sound generating body 2A plays secondary role, and what first connector and second connector played more is the fixed action, and mechanical oscillation signal's transmission effect is few partially. Because the first sounding body 1A is a source sounding part, when the first sounding body is in front of the ear, bone conduction and sound conduction of the external auditory canal are simultaneously carried out, so that higher output volume can be obtained, and the configured sound quality is better.

In another embodiment of the present disclosure, the first sounding body 1A is located behind the auricle, and the second sounding body 2A is located in front of the auricle. At this time, the second sounding body 2A includes a first core 21A and a second core 22A, the first core 21A is connected to the rigid wire 31A of the first connecting member 3A, and the second core 22A is connected to the rigid wire 31A of the second connecting member 4A. The shape of the second outer shell 23AA covering the first inner core 21A and the second inner core 22A may be modified according to various needs.

The degree of the second sounding body 2A covering the external auditory canal, the size of the air cavity formed by the auricle and the shape and appearance of the second casing 23AA are changed, which significantly affects the overall volume output and sound quality. The second sounding body 2A forms a pre-auricular component, the first sounding body 1A forms a post-auricular component behind the back of the ear, and double sounds act simultaneously to form a complete auditory sensation.

Second embodiment

Referring to fig. 6-8, in the second embodiment of the present invention, the second sounding body 2B includes a second outer shell 23B, a first inner core 21B and a second inner core 22B, the second outer shell 23B includes a first contact portion 231B abutting against the first connecting member 3B, a second contact portion 232B abutting against the second connecting member 4B and a third contact portion 233B contacting with the external auditory canal of the auricle, the first contact portion 231B, the second contact portion 232B and the third contact portion 233B are integrally formed, the first contact portion 231B and the second contact portion 232B mainly transmit the sound of the first inner core 21B and the sound of the second inner core 22B to the eardrum through bone conduction, and the third contact portion 233B mainly shields the external auditory canal to reduce the influence of noise in the external environment, thereby achieving a better listening effect.

The sound insulating ability of second sound production body 2B's material promotes, its shielding degree increase to the external auditory canal, will improve the discernment power that the human ear obtained the audio signal who comes from sound generating mechanism, the flexible material of the sound wave is easily propagated to the optional usefulness of second sound production body 2B, and through to the whole size of second sound production body 2B, its internal connection spare arranges the frequency spectrum that changes the sound wave signal of whole second sound production body 2B to the output of human ear and is balanced, influence the sense of hearing that the human ear obtained from whole sound generating mechanism from this.

Third embodiment

Referring to fig. 9-11, the present invention discloses an ear clip type sound generating device, which includes:

the first sounding body 1C is used for converting the audio electrical signal into a mechanical oscillation signal and forming a sound wave which is easy to transmit to human ears;

specifically, the first sounding body 1C includes an electroacoustic transducer 11C, an audio electric signal input 12C, and a first housing 13C. The electroacoustic transducer 11C is a piezoelectric ceramic containing electrodes, and is configured to convert an audio electrical signal into a mechanical oscillation signal and generate sound; the electroacoustic transducer 11C in this embodiment is a strip-shaped thin type electroceramic including electrodes, and the shape of the electroceramic may be changed according to the requirement.

The input end of the audio electric signal input part 12C inputs an audio electric signal, and the output end of the audio electric signal input part 12C is electrically connected with the electroacoustic transducer 11C and used for accessing the audio electric signal;

the audio electrical signal input 12C includes the following three forms:

1) the audio electric signal input part 12C is a wire connected with a sound source to transmit audio electric signals, and the ear-hanging type sound production device formed by the scheme is suitable for wired earphones;

2) the audio electric signal input part 12C is a Bluetooth transmission module for transmitting audio electric signals, and the ear-hanging type sound production device formed by the scheme is suitable for a wireless earphone;

3) the audio signal input unit 12C is a small enough sound source module, and independently generates an audio signal and sounds.

The first casing 13C is a soft casing, the electroacoustic transducer 11C and the audio electrical signal input member 12C are accommodated in the first casing 13C, and the first casing 13C is attached to the auricle.

The second sounding body 2C is connected with the first sounding body 1C and is used for receiving the mechanical oscillation signal transmitted by the first sounding body 1C and forming sound waves which are easy to transmit to human ears;

specifically, the second sounding body 2C includes an inner core 21C and a second outer shell 22C, and the inner core 21C receives the mechanical oscillation signal generated by the electroacoustic transducer and transmits sound; the second shell 22C is a flexible shell, and covers the outer surface of the inner core 21C and is attached to the auricle.

The inner core 21C is a spherical oscillating body formed by integrally molding a single or composite material, the spherical oscillating body can realize a better transmission process after receiving a mechanical oscillation signal, and the inner core 21C is made of a rigid material, so that the sound leakage of the mechanical oscillation signal is reduced. The second shell 22C is a soft shell, and covers the inner core 21C to protect the ear and make the ear more comfortable. The second outer shell 22C is designed to cover the inner core 21C in an ergonomic shape that substantially conforms to the area of the outer ear.

Connecting piece 3C, the collapsible setting of connecting piece 3C is between first sound production body 1C and second sound production body 2C for fixed first sound production body 1C and second sound production body 2C are in the auricle, and transmit the mechanical oscillation signal that first sound production body 1C sent to second sound production body 2C.

Specifically, the connecting member 3C is used to connect the first sounding body 1C and the second sounding body 2C. The skeleton or body of the connector 3C may be selected of a rigid material to facilitate conduction of sound waves therein as longitudinal waves and transverse waves. The periphery of the framework can be coated with soft materials.

Therefore, the connector comprises a rigid wire and a flexible coating sleeve, one end of the rigid wire is contacted with the electric ceramic, and the other end of the rigid wire is contacted with the inner core 21C, so that mechanical oscillation signals can be better transmitted, the sound conduction effect is enhanced, and the sound leakage and the oscillation loss are reduced; meanwhile, the rigid wire can be deformed as required according to the shape of the auricle, so that the rigid wire can better adapt to the shape of the human ear to achieve a better fixing effect. The flexible coating sleeve avoids skin damage, and more comfortable wearing experience can be realized. The first housing 13C, the second housing 22C and the flexible covering may be integrally injection molded to form a covering, which enhances the aesthetic appearance of the sound generating device.

In this embodiment, the connecting member 3C includes a first connecting portion 31C, a second connecting portion 32C, and a foldable portion 33C that unfolds or folds the first connecting portion 31C and the second connecting portion 32C, one end of the first connecting portion 31C is connected to the first sounding body 1C, the other end of the first connecting portion 31C is connected to one end of the foldable portion 33C, one end of the second connecting portion 32C is connected to the second sounding body 2C, and the other end of the second connecting portion 32C is connected to the other end of the foldable portion 33C. Specifically, the first connecting portion 31C is an annular frame body, which is sleeved on the first sounding body 1C and is convenient to take down, and the second connecting portion 32C and the second sounding body 2C are consistent in shape and material, so as to be convenient for processing and transmitting mechanical oscillation signals.

Specifically, the foldable portion 33C is a bearing, the first connecting portion 31C is provided with a first connecting hole adapted to the bearing, the second connecting portion 32C is provided with a second connecting hole adapted to the bearing, and the bearing sequentially penetrates through the first connecting hole and the second connecting hole, so that the effect that the first connecting portion 31C and the second connecting portion 32C are rotatably connected to the bearing respectively is achieved.

Of course, the present invention is not limited to the fixing manner by the connecting piece 3C, and the first connecting portion 31C, the second connecting portion 32C and the foldable portion 33C may be designed as a deformable folding structure with elastic or plastic characteristics, and may be a folding structure in a linear, strip or other form, and as long as the folding effect in the present embodiment can be achieved, all of the structures are modifications and changes of the present embodiment, and should fall within the protection scope of the present invention.

In the present embodiment, the connecting member 3C is in the folded state, and the first sounding body 1C is fitted behind the auricle with the support of the first connecting portion 31C, and the second sounding body 2C is fitted in front of the auricle with the support of the second connecting portion 32C. The earclip type sound generating device is in the form of an earring, and the second sound generating body 2C can be designed to cover the external auditory canal, partially open the external auditory canal, and fully open the external auditory canal so that the wearer can fully obtain the audio signal from the device, give consideration to the prompt and other sounds of the surrounding environment, and obtain the prompt, voice, background music and other audio information from the device on the premise of not affecting the full perception of the human ear to the external sound, so as to obtain the audio experience of augmented reality.

In the unfolded state of the connecting member 3C, the first sounding body 1C is suspended outside the auricle under the support of the first connecting portion 31C, and the second sounding body 2C is attached to the front of the auricle under the support of the second connecting portion 32C. Can be similar to traditional vibrating diaphragm earphone, second sound production body 2C wears with the pleasant, semi-open or open mode to the user demand under the different noise environment of reply. When the second sounding body 2C is worn in a semi-open or open manner, the device does not occlude the external auditory canal, which would facilitate the natural and orderly acquisition of other auditory information of the user and the surrounding environment without auditory masking or occlusion.

In the present embodiment, the first sound generating body 1C is located in front of the auricle, and the first sound generating body 1C extends to contact the tragus, the wall of the external auditory canal or cover the external auditory meatus, and the second sound generating body 2C is located behind the auricle; or the first sounding body 1C is located behind the auricle, the second sounding body 2C is located in front of the auricle, and the second sounding body 2C extends to contact the tragus, the wall of the external auditory canal or cover the external auditory meatus.

When the first sounding body 1C is close to the external auditory canal or contacts the tragus, the first sounding body 1C plays a major role, the second sounding body 2C plays a minor role, the first connector and the second connector play more roles of fixing, and the transmission effect of the mechanical oscillation signal is less. When the first sounding body 1C is positioned on the back of the ear, the second sounding body 2C is positioned in front of the ear, the second sounding body 2C forms a pre-ear component, the first sounding body 1C forms a post-ear component behind the back of the ear, and the dual sounds act simultaneously to form a complete auditory sensation. Two kinds of wearing methods all can reach sound production effect, only from wearing the custom, set up second sound production body 2C in front of the ear, set up first sound production body 1C behind the ear, wear more easily.

Referring to fig. 12, when the connecting member 3C is folded to keep the first sound generating body 1C closely attached to the back of the auricle, the second sound generating body 2C is located between the tragus and the antitragus, and in this wearing manner, the external auditory canal can be shielded to different degrees and partially or fully opened by changing the design of the second sound generating body 2C and the connecting member 3C, so that the wearer can still fully or partially sense the sound from the surrounding environment while obtaining the mechanical oscillation of the sound wave from the external ear sound transmission device. The proportion of sound coming from the device and the surroundings can be adjusted by changing the covering of the outer ear canal by the second sound emitting body 2C and the connector member. The higher the degree of masking, the greater the degree of isolation between the human ear and the surrounding sound. The eardrop shape can be attached to the auricle by depending on the weight of the eardrop, so that the eardrop is suitable for long-term wearing. At the same time, in this wearing mode, the external auditory canal can be opened sufficiently so as not to obstruct the user from receiving the sound in the surrounding environment.

With further reference to fig. 13, when the device is designed and configured to be worn in a folded configuration such that the device is partially or fully open to the external ear canal, while allowing the wearer to perceive sounds from the surrounding environment, the human ear will receive extraneous, chaotic, unwanted sounds in the environment, including noise, which will affect the wearer's perception of audio signals from the device. In such a scene, the device can be worn in another way, namely a non-folding way. In this manner, the folded configuration of the connector 3C is unfolded and may be worn in front of the ear in an in-ear, semi-in-ear, and pendant manner, and when the external auditory meatus is sufficiently shielded, the device provides superior noise isolation to ensure that the wearer can adequately experience the audio information from the device.

It should be noted that the present invention is not limited to the structural arrangement of the sound generating devices of the first, second, and third embodiments described above. In another embodiment of the present invention, there is disclosed: first sound production body and second sound production body carry out mechanical oscillation signal's transmission through the connecting piece, simultaneously, are equipped with magnet structure on first sound production body and the second sound production body, and first sound production body and second sound production body pass through magnet structure's inter attraction effect to realize first sound production body and second sound production body respectively behind the ear with the ear fixed.

Therefore, any sounding body fixing structure that can fit the first sounding body and the second sounding body outside the auricle to realize simultaneous sounding of two groups of sound sources is a simple transformation and transformation of the scheme, and shall fall within the protection scope of the present invention.

With respect to the above sound emission devices, the applicant conducted the following tests on the sound emission effect of each sound emission device by using a spectrum analysis apparatus.

The detection mode is as follows: the booster stage is obtained by the test apparatus after the sound-transmitting surface of the first sounding body in the first embodiment, the sound-transmitting surface of the second sounding body in the first embodiment, the sound-transmitting surface of the first sounding body in the third embodiment, and the sound-transmitting surface of the second sounding body in the third embodiment are brought into sufficient contact with the equivalent transduction material.

The test principle is as follows:

the unit of the vertical axis is dB, and the vertical axis is a relative value of the sound pressure level of the sound wave band frequency spectrum. The relative value of the boost stage changes due to the deformation of the device periphery caused by the bone conduction transducer device obtained equivalently by the diaphragm microphone and the airflow change caused by the size change of the cavity formed between the microphones.

The higher the value, the greater the bone conduction transduction oscillations acquired at the corresponding frequency for the device arrangement, and the magnitude of these oscillations is logarithmically marked, the horizontal axis of the spectrogram being the frequency in the interval from zero hertz to 22.05 kilohertz.

In the experiment, a plurality of discrete test points are selected as reference oscillation source frequency sweep output, and various types of oscillators including a source oscillator and an oscillator to be tested send mechanical oscillation signals sent by the source oscillator and the oscillator to be tested into equivalent test equipment, so that the values only have reference values.

It should be noted that the frequency response at 50 hz and below is of no reference value because the dc side of the spectrum analyzer cannot overflow its dc component sufficiently.

The spectral line with higher ordinate is the maximum oscillation quantity collected at the corresponding frequency point in the process of spectrum analysis, and the transduction capability of the oscillator of the type when a single-frequency-point audio oscillation signal corresponding to the equivalent voltage is converted into a mechanical oscillation signal and transmitted to the testing equipment, so that the formed complete spectrum ranging from 20 Hz to 22.05 kHz is the complete frequency response of the oscillator or the transduction equipment.

The spectral line with the lower ordinate is the condition when the real-time acquisition is performed, and the operation of the test equipment is the real-time acquisition, so the numerical value of the spectral line with the lower ordinate is not higher than that of the spectral line with the higher ordinate, namely the peak value, and the spectral line with the lower ordinate can be used as a reference of the noise base or abnormal sound of the surrounding environment in the test chart. Since the test environment involves physical contact between the transducer device and the test equipment, the peaks represented by the majority of spectral envelopes with lower ordinate are abnormal sounds of the audio frequency break generated during such contact, plugging, rubbing, or other test processes, and the intensity of these abnormal sounds can reflect the effective transfer of the mechanical oscillation energy actually generated by the corresponding bone conduction transducer device.

Fig. 14 shows the frequency response test result obtained by the first sounding body in the first embodiment of the present invention. From the result that shows on this picture, it can be seen that because the integrated design of this first sound-generating body and connecting piece has produced the area of contact with testing arrangement bigger to because whole mechanical oscillation is difficult for overflowing to the air through the surface of device in, its oscillation is sent into test equipment more balanced, under the fixed reasonable prerequisite of device, reflects as the transduction efficiency that is comparatively superior to single bone conduction transduction dress transaudient face.

Fig. 15 shows the frequency response test result obtained by the second sounding body in the first embodiment of the present invention. The second sounding body is characterized in that two balanced audio output sections, namely 3k to 7k and 15 k to 17k, are provided, a notch effect is embodied in an interval of 8k to 14k, the notch effect is formed by the fact that a connector rigid material of two branches enters different resonance intervals formed by the second sounding body, and the second sounding body material and the connecting piece and the second sounding body connection mode are jointly determined by the material and the structure of the connecting piece. This provides greater design freedom for different types of audio devices and for implementation of frequency response output requirements. And can generate line wave effect to specific frequency band

Fig. 16 shows the frequency response test result obtained by the first sounding body in the third embodiment of the present invention. In this case, the frequency response is faded to different degrees up to 20 dB to both sides with a center frequency of about 10 khz, which shows that the manner of fixing the link to the first sounding body will somewhat restrict the overall transduction efficiency of the first sounding body from slightly decreasing and the frequency balance thereof from decreasing. But still in a comparable operating range.

Fig. 17 shows the frequency response test results obtained for the second sounding body (with the second casing) in the third embodiment of the present invention. It can be seen from the figure that the equivalent sound pressure level output by the mechanical oscillation under the condition is lower than the oscillation amount emitted by the first sounding body, and the frequency balance is poor, which is reflected in that the natural frequency formed by the specific single or composite connecting piece and the second sounding body material and the second harmonic position thereof have better frequency response, and in the test chart, the natural frequency shown by the connecting piece and the second sounding body contact with the test equipment end is at a position close to 8k, so that the test chart is more suitable for transmitting human voice. Notably, by varying the material composition and structure, this frequency response will be configurable to specific application scenarios including suppression and limitation of the emission of human vocal tract into the air by the material for better secure communication.

As shown in fig. 18, the frequency response test result obtained by the second sounding body (without the second housing) in the third embodiment of the present invention is shown. Compared with the test chart 17, the two are close in frequency response performance, and the material extending into the external auditory meatus does not influence the performance of the audio output of the bone conduction transduction equipment. But since the external auditory canal is open, the human ear is allowed to perceive the surrounding environment while equally receiving noise from the surrounding environment. Therefore, in practical performance, the sound input into human ears by the second sounding body and the isolation degree of the ambient noise can be limited by configuring different peripheral materials.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In view of the above description of the technical solutions provided by the present invention, those skilled in the art will recognize that there may be variations in the technical solutions and the application ranges according to the concepts of the embodiments of the present invention, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims (9)

1. A sound generating device, comprising:

a first sound emitter for converting an audio electrical signal into a mechanical oscillation signal and forming a sound wave that is easily transmitted to the human ear;

the second sounding body is connected with the first sounding body and used for receiving the mechanical oscillation signal transmitted by the first sounding body and forming sound waves easy to transmit to human ears;

the sound generating device further comprises a first connecting piece, one end of the first connecting piece is connected with the first sound generating body, the other end of the first connecting piece is connected with the second sound generating body and used for fixing the first sound generating body and the second sound generating body, and the second sound generating body transmits a mechanical oscillation signal emitted by the first sound generating body, and the first connecting piece comprises a rigid wire and a flexible covering sleeve.

2. The apparatus according to claim 1, wherein said first sound generating body is located in front of the auricle, and said first sound generating body is extended to contact the tragus, the wall of the external auditory canal or cover the external auditory meatus, and said second sound generating body is located behind the auricle; or after first sound production body is in the auricle, second sound production body is in the auricle before, just second sound production body extends to contact tragus, external ear canal wall or covers the external auditory meatus.

3. The sound generating apparatus as claimed in claim 1, wherein the first connecting member is made of a flexible and moldable material.

4. The sound generating device according to claim 1, further comprising a second connecting member, wherein one end of the second connecting member is connected to the first sound generating body, and the other end of the second connecting member is connected to the second sound generating body, and is also used for transmitting the mechanical oscillation signal generated by the first sound generating body to the second sound generating body.

5. The sound generating device according to claim 4, wherein the first connecting member contacts with an upper edge of the auricle, the second connecting member contacts with a lower edge of the auricle, and the first connecting member, the first sound generating body, the second connecting member and the second sound generating body are sequentially connected end to form a closed ring body surrounding the periphery of the auricle.

6. The sound generating apparatus according to claim 1, wherein the first connecting member includes a first connecting portion, a second connecting portion, and a foldable portion that unfolds or folds the first and second connecting portions, one end of the first connecting portion is connected to the first sound generating body, the other end of the first connecting portion is connected to one end of the foldable portion, one end of the second connecting portion is connected to the second sound generating body, and the other end of the second connecting portion is connected to the other end of the foldable portion.

7. The sound generating apparatus according to claim 6, wherein the first connecting member is folded such that the first sound generating body is fitted behind the auricle with the support of the first connecting portion and the second sound generating body is fitted in front of the auricle with the support of the second connecting portion; when the first connecting piece is in an unfolded state, the first sounding body is suspended outside the auricle under the support of the first connecting part, and the second sounding body is attached in front of the auricle under the support of the second connecting part.

8. The sound generating apparatus of claim 1, wherein the first sound emitter comprises:

the electroacoustic transducer is piezoelectric ceramic containing electrodes and is used for converting an audio electrical signal into a mechanical oscillation signal and producing sound;

the input end of the audio electric signal input piece inputs an audio electric signal, and the output end of the audio electric signal input piece is electrically connected with the electroacoustic transducer and used for accessing the audio electric signal;

the electroacoustic transducer and the audio electrical signal input piece are contained in the first shell.

9. The sound generating apparatus according to claim 8, wherein said second sound generating body comprises:

the inner core receives a mechanical oscillation signal sent by the electroacoustic transducer and transmits sound;

and the second shell is a flexible shell, wraps the outer surface of the inner core and is attached to the auricle.

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