CN216795239U

CN216795239U - Open bone acoustic conduction speaker and earphone

Info

Publication number: CN216795239U
Application number: CN202122995609.5U
Authority: CN
Inventors: 刘明涛
Original assignee: Shenzhen Mingyueda Electroacoustic Technology Co ltd
Current assignee: Shenzhen Mingyueda Electroacoustic Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-21
Anticipated expiration: 2031-11-30

Abstract

The embodiment of the utility model provides an open bone sound conduction loudspeaker, which comprises a shell with at least one first air hole and/or at least one second air hole, and a spring plate, a driving component and a vibrating component which are accommodated in the shell; the driving assembly is connected with the shell through an elastic sheet; the vibration component is connected with the shell and arranged above the driving component. Through the structure, full-frequency vibration of the loudspeaker is realized, full-range sound radiated by the vibrating diaphragm is well received by human ears through the second air holes, and in addition, the energy of the loudspeaker is reacted on the shell by matching with the elastic sheet for bone conduction, so that better low-frequency diving and low-frequency strength received by people can be ensured; the first air hole on the shell is used for adjusting and balancing air pressure inside and outside the sound cavity formed in the shell and preventing the diaphragm from deforming due to unequal front and back air pressure, and the like.

Description

Open bone acoustic conduction speaker and earphone

Technical Field

The utility model relates to the technical field of handheld equipment, in particular to an open bone sound conduction loudspeaker and an earphone.

Background

Generally, a person can hear a sound because air transmits vibration to the eardrum through the external auditory meatus, and the vibration formed through the eardrum drives the auditory nerve of the person, thereby sensing the vibration of the sound, which is air conduction. When in work, the bone conduction speaker in the market can be generally transmitted to the auditory nerve of a person through the skin, subcutaneous tissues and bones of the person, so that the person can hear the sound.

The speaker is an important component of a basic electronic sound generating element and a sound generating device, such as an earphone, wherein the sound quality of the sound generating device is directly related to the structure of the speaker.

However, due to the structural relationship of the existing speaker, the existing speaker cannot directly send out a good audio effect, or needs to improve the sound quality through an auxiliary device (such as sound effect analog sound); there is a need for an earphone that is different from the conventional speaker and a device composed of the speaker, so that the earphone can directly emit good tone quality and has the advantages of both air conduction and bone conduction. The high-quality earphone which is comfortable to wear, full in bass, clear in middle pitch and fine in treble is a speaker meeting the requirements of comfort level and tone quality in the industry urgently.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present invention are proposed to provide an open bone-sound conduction speaker and earphone that overcome or at least partially solve the above-mentioned problems.

In order to solve the above problems, an embodiment of the present invention discloses an open bone acoustic conduction speaker, which includes a housing having at least one first air hole and/or at least one second air hole, and a resilient sheet, a driving assembly and a vibrating assembly accommodated in the housing;

the driving assembly is connected with the shell through an elastic sheet;

the vibration assembly is connected with the shell and arranged above the driving assembly, wherein the driving assembly provides a magnetic field for the vibration assembly.

Preferably, the vibration assembly includes a voice coil and a diaphragm;

the voice coil is connected to the lower end of the vibrating diaphragm.

Preferably, the drive assembly comprises: u iron and a magnet;

the magnet is arranged in the U-shaped iron and is connected with the bottom of the U-shaped iron;

gaps are formed between the side surfaces of the magnets and the side surfaces in the U-shaped iron; the vibration assembly is at least partially located within the void.

Preferably, the drive assembly further comprises a magnetically permeable sheet;

the magnetic conductive sheet is arranged above the magnet and is flush with the open end of the U iron.

Preferably, the housing comprises: a cavity back shell and a cavity front shell;

the cavity rear shell corresponds to one end of the driving assembly; the cavity front shell corresponds to the end of the vibration assembly;

the cavity rear shell is provided with at least one first air hole and/or the cavity front shell is provided with at least one second air hole.

Preferably, the first air hole is located on a side surface and/or a bottom surface of the cavity rear shell, and the second air hole is located on a side surface and/or a bottom surface of the cavity front shell.

Preferably, the diaphragm is a two-section diaphragm;

the voice coil is connected between the first section of diaphragm and the second section of diaphragm, wherein the first section of diaphragm is an effective vibrating diaphragm positioned above the driving assembly;

the voice coil is at least partially located in the magnetic field provided by the driving assembly;

the total area of the second air holes is 5% -15% of the area of the effective vibration diaphragm.

Preferably, the air hole structure further comprises a first tuning part and a second tuning part, wherein the first tuning part is attached to the inside of the first air hole; the second tuning component is attached to the inside of the second air hole.

Preferably, the device further comprises a bracket connected to the inner wall of the shell; the housing is connected to a drive assembly and a vibration assembly through the bracket; the method specifically comprises the following steps:

the middle part of the bracket is connected to the outer side of the driving component through an elastic sheet;

the edge of the vibration component is connected to the upper end of the bracket.

The embodiment of the utility model also discloses an open bone sound conduction earphone, which comprises an earshell component and the open bone sound conduction loudspeaker accommodated in the earshell component;

a decoding unit electrically connected to an audio source and the open bone conduction speaker is also housed within the earshell assembly.

Preferably, a head-wearing assembly is further included;

the headset assembly is connected to the earshell assembly.

Preferably, the head wearing assembly comprises a U-shaped head wearing part, a rotating part and a damping part;

the U-shaped head is connected to one end of the rotating piece through a damping piece, and the other end of the rotating piece is connected to the earlap assembly; or the like, or, alternatively,

the U-shaped head is connected to one end of the damping piece through the rotating piece, and the other end of the damping piece is connected to the earmuff component; or the like, or, alternatively,

the damping member includes a first damping member and a second damping member, the head is connected to the rotating member through the first damping member, and the rotating member is connected to the concha assembly through the second damping member.

The method specifically comprises the following advantages:

in the embodiment of the utility model, the shell passes through at least one first air hole and/or at least one second air hole, and the elastic sheet, the driving component and the vibrating component are accommodated in the shell; the driving assembly is connected with the shell through an elastic sheet; the vibration assembly is connected with the shell and arranged above the driving assembly, wherein the driving assembly provides a magnetic field for the vibration assembly. Through the structure, full-frequency vibration of the loudspeaker is realized, full-range sound radiated by the vibrating diaphragm is well received by human ears through the second air holes, and in addition, the energy of the loudspeaker is reacted on the shell by matching with the elastic sheet for bone conduction, so that better low-frequency diving and low-frequency strength received by people can be ensured; the first air hole on the shell is used for adjusting and balancing air pressure inside and outside a sound cavity formed in the shell and preventing the vibrating diaphragm from deforming due to unequal air pressure in front and back, and the like.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an open bone acoustic conduction speaker according to an embodiment of the present application;

fig. 2 is another schematic structural diagram of an open bone conduction speaker according to an embodiment of the present application.

In the figure: 101. iron U; 102. a magnet; 103. a magnetic conductive sheet; 104. a voice coil; 105. vibrating diaphragm; 106. A support; 107. a spring plate; 20. a housing; 201. a cavity rear shell; 202. a cavity front shell; 203. a first air hole; 204. a second air hole; 301. a first tuning member; 302. a second tuning member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.

Referring to fig. 1, an open bone acoustic conduction speaker provided in an embodiment of the present application is shown, which specifically includes the following structures: the shell 20 comprises at least one first air hole 203 and/or at least one second air hole 204, and the elastic sheet 107, the driving component and the vibrating component which are accommodated in the shell 20; the driving component is connected with the shell 20 through an elastic sheet 107; the vibration component is connected with the housing 20 and disposed above the driving component, wherein the driving component provides a magnetic field for the vibration component.

In the embodiment, full-frequency vibration of the loudspeaker is realized, full-range sound radiated by the vibrating diaphragm is well received by human ears through the second air holes, and in addition, the energy of the loudspeaker is reacted on the shell by matching with the elastic sheet for bone conduction, so that better low-frequency diving and low-frequency strength received by people can be ensured; the first air hole 203 on the shell is used for adjusting and balancing air pressure inside and outside a sound cavity formed in the shell and preventing the diaphragm from deforming due to unequal air pressure in front and back, and the most important is that the radiation energy on the back of the loudspeaker can be fully utilized, and the lower limit of low frequency and the sense of measurement of low frequency band can be effectively improved.

Next, an open bone acoustic conduction speaker in the present exemplary embodiment will be further described.

Referring to fig. 1, an open bone acoustic conduction speaker provided in an embodiment of the present application is illustrated, which specifically includes the following structures: the shell 20 comprises at least one first air hole 203 and/or at least one second air hole 204, and the elastic sheet 107, the driving component and the vibrating component which are accommodated in the shell 20; the driving component is connected with the shell 20 through an elastic sheet 107; the vibration component is connected with the housing 20 and disposed above the driving component, wherein the driving component provides a magnetic field for the vibration component. Through drive assembly and vibration subassembly, the conversion signal of telecommunication is the vibration signal to through vibration subassembly conduction vibration signal, make the air produce vibration conduction sound wave, drive assembly passes through shell fragment 107 with vibration conduction to shell 20, as bone conduction vibration, will vibrate when the shell contacts the human body and pass to people's ear through human skeleton.

Through the structure, full-frequency vibration of the loudspeaker is realized, full-range sound radiated by the vibrating diaphragm is well received by human ears through the second air holes, and in addition, the energy of the loudspeaker is reacted on the shell by matching with the elastic sheet for bone conduction, so that better low-frequency diving and low-frequency strength received by people can be ensured; the first air hole on the shell is used for adjusting and balancing air pressure inside and outside the sound cavity formed in the shell and preventing the diaphragm from deforming due to unequal front and back air pressure, and the like.

In an embodiment of the present application, fig. 2 shows an open bone conduction speaker, a housing 20 with at least one first air vent 203 and/or at least one second air vent 204, and a spring 107, a driving assembly and a vibrating assembly accommodated in the housing 20; the driving component is connected with the shell 20 through an elastic sheet 107; the vibration component is connected with the housing 20 and disposed above the driving component, wherein the driving component provides a magnetic field for the vibration component. The vibration assembly comprises a voice coil 104 and a diaphragm 105; the voice coil 104 is connected to the lower end of the diaphragm 105.

In the above embodiment, the voice coil 104 and the diaphragm 105 are at least partially disposed in the magnetic field provided by the driving assembly, when in operation, under the pushing of the magnetic field according to the electrical signal of the sound source, the diaphragm 105 vibrates and pushes air to generate sound waves, the driving assembly simultaneously drives the elastic sheet 107 to transmit the vibration to the housing of the speaker as a vibration sound source (i.e., bone conduction sound source), so that the air conduction sound production and the bone conduction sound production are realized in the same speaker, the bone conduction vibration sound wave and the air conduction sound wave can be complemented, and the speaker has better sound quality.

In one embodiment of the present application, the driving assembly includes: u-iron 101 and magnet 102; the magnet 102 is arranged in the U-shaped iron 101 and is connected with the bottom of the U-shaped iron 101; a gap is formed between the side surface of the magnet 102 and the side surface in the U-shaped iron 101; the vibration assembly is at least partially located within the void.

In the above embodiment, the U-shaped iron 101 has the magnet 102 disposed in the cavity inside the U-shape, so that the magnetic field of the magnet 102 can be conducted through the U-shaped iron 101, the vibration component is at least partially located in the gap, and the gap between the U-shaped iron 101 and the magnet 102 provides a vibration stroke for the vibration component.

In one embodiment of the present application, the driving assembly further includes a magnetic conductive plate 103; the magnetic conductive sheet 103 is disposed above the magnet 102 and flush with the open end of the U-shaped iron 101.

In the above embodiment, the magnetic field of the magnet 102 is guided and extended by the magnetic conductive sheet 103, so that the vibration component can vibrate better in the magnetic field.

In one embodiment of the present application, as shown in fig. 1-2, the housing 20 includes: a cavity back shell 201 and a cavity front shell 202; the cavity back shell 201 corresponds to one end of the driving assembly; the cavity front shell 202 corresponds to the end of the vibration assembly; the cavity back shell 201 is provided with at least one first air hole 203 and/or the cavity front shell 202 is provided with at least one second air hole 204.

In the above embodiment, the housing 20 is configured as the cavity rear case 201 and the cavity front case 202, so that the production and assembly are more convenient, and the second air holes 204 are formed in the cavity front case 202, so that the air conduction sound waves are easily conducted out from the second air holes 204, and the sound quality of the air conduction sound waves is improved; the first air hole 203 is used for adjusting and balancing air pressure inside and outside a sound cavity formed by the shell 20 and preventing the diaphragm 105 from deforming due to unequal air pressure in front and back, and the most important is that the radiation energy on the back of the loudspeaker can be fully utilized, and the lower limit of low frequency and the sense of measurement of low frequency range can be effectively improved.

In an embodiment of the present invention, the first air hole 203 is located on a side and/or bottom surface of the cavity back case 201, and the second air hole 204 is located on a side and/or bottom surface of the cavity front case 202.

In the above embodiments, the shapes of the first air hole 203 and the second air hole 204 include, but are not limited to, round, square, oval, and other special shapes; the positions and shapes of the first air hole 203 and the second air hole 204 can be flexibly set according to the requirements of earphones or other sound production equipment during processing.

In an embodiment of the present application, the diaphragm 105 is a two-section type membrane; the voice coil 104 is connected between a first section of diaphragm, which is the active diaphragm located above the drive assembly, and a second section of diaphragm; the voice coil 104 is at least partially located in the magnetic field provided by the drive assembly; the total area of the second air holes 204 is 5-15% of the area of the effective vibration diaphragm. The quality of the diaphragm 105 includes, but is not limited to, the cloth, rubber, PU, metal, composite material, etc. used for radiating sound waves.

In the above embodiment, the connection between the first section of diaphragm and the second section of diaphragm is connected to the voice coil 104, so that when the voice coil 104 drives the diaphragm 105 to vibrate, the diaphragm 105 can vibrate better without being affected by the connection with the housing 20 or the bracket 106; the size and the position of the sound hole of the second air hole 204 can influence the high-frequency cut-off frequency and the sensitivity of medium and low frequencies; too large a second vent 204 may result in too much high frequency noise and too little may result in a reduced volume of sound. The area of the second air hole 204 is between 5 and 15 percent of the effective vibration area of the loudspeaker; so that the full-frequency vibration sounding effect can be better achieved.

In an embodiment of the application, the air conditioner further comprises a first tuning part 301 and a second tuning part 302, wherein the first tuning part 301 is attached inside the first air hole 203; the second tuning member 302 fits inside the second air hole 204.

In the above embodiment, the first tuning part 301 and the second tuning part 302 preferably use tuning materials, and can be used in the first air hole 203 and/or the sound outlet hole 204 to improve medium-high frequency, so that sound is clearer and is not cloudy, and a five-level waterproof function can be achieved. The first tuning part 301 and the second tuning part 302 are arranged to match the shapes of the first air hole 203 and the sound outlet 204 and the tuning materials of the first tuning part 301 and the second tuning part 302, the size of the first air hole 203 is required to be as small as possible, the first air hole 203 is too small or too large, the low frequency and the sound field are weakened, and preferably, the effective diameter of the first air hole 203 is set to be not less than 1 mm. So as to achieve better low-frequency effect.

In one embodiment of the present application, as shown in FIG. 2, further includes a bracket 106 attached to an inner wall of the housing 20; the housing 20 is connected to a drive assembly and a vibration assembly via the bracket 106; the method specifically comprises the following steps: the middle part of the bracket 106 is connected to the outer side of the driving component through an elastic sheet 107; the edge of the vibration assembly is attached to the upper end of the bracket 106.

In the above embodiment, the bracket 106 may be disposed on the front housing 202 of the cavity, the vibration assembly and the driving assembly are both connected to the housing through the bracket 106, and the vibration assembly and the driving assembly are both connected to the housing through the bracket 106 during assembly, and then the front housing 202 of the cavity is installed, and then the front housing 202 of the cavity and the rear housing 201 of the cavity are connected to form a sealed cavity in the housing 20, so that the production and assembly are simpler, the production and assembly process is simplified, and the yield is improved.

An embodiment of the present application further discloses an open bone acoustic conduction earphone, which includes an earshell assembly, and the open bone acoustic conduction speaker accommodated in the earshell assembly; a decoding unit electrically connected to an audio source and the open bone conduction speaker is also housed within the earshell assembly.

In the above embodiment, the sound source signal is received by the decoding unit, and the sound is decoded into the electrical signal, and the electrical signal is converted into the audio through the speaker in the earmuff component, because the earphone of the present application, the above-mentioned open speaker used is a bone conduction speaker (a speaker integrating bone conduction and air conduction), and is an open bone conduction earphone, as a preferred practical example, the first tuning part 301 of the speaker is matched with the first air hole 203, the second tuning part 302 and the sound outlet hole 204, because the first tuning part 301 and the second tuning part 302 are both made of waterproof materials, the whole speaker has good waterproof performance, and the earphone composed of the speaker has a waterproof function inside.

In an embodiment of the present application, the headset further comprises a head mount assembly; the headset assembly is connected to the earshell assembly; wherein, wear the subassembly both ends and set up to left channel and right channel respectively, stereo effect when further promoting the user to use.

In one embodiment of the present application, the head mount assembly includes a U-shaped head mount, a rotating member, and a damping member; the U-shaped head is connected to one end of the rotating piece through a damping piece, and the other end of the rotating piece is connected to the earlap assembly; u type head-mounted cooperation runner assembly makes earphone both ends movable, convenient storage, combines the damping piece, makes it more suitably wear, improves the comfort of wearing.

In one embodiment of the present application, the U-shaped head is connected to one end of the damping member through the rotation member, and the other end of the damping member is connected to the ear shell assembly.

In one embodiment of the present application, the damping member includes a first damping member and a second damping member, the head mount is connected to the rotating member through the first damping member, and the rotating member is connected to the concha assembly through the second damping member.

In an embodiment of the present application, the bone sound conduction speaker is a full-frequency vibration bone sound conduction speaker, and the full-frequency vibration bone sound conduction speaker is preferably used in the open bone sound conduction earphone.

The beneficial effect of this application still lies in, this application raises the ware through full frequency vibration bone acoustic conduction and passes through vibrating diaphragm 105 radiation and receive by the people's ear through the sound hole is fine before earphone sound cavity shell 202 full range sound, and the cooperation is used for the shell fragment that bone conduction used for in addition, makes the vibration raise the corresponding energy reaction of ware on sound cavity backshell 201 to can ensure better bass dive and the low frequency dynamics that the people received. Then full frequency vibration raises ware and constitutes an earphone cavity with earphone sound chamber front shell 202, earphone sound chamber backshell 201, first air vent 203, play sound hole 204, tuning material etc. again, through adjusting first air vent 203 and play sound hole 204 size position, relevant parameters such as tuning material characteristic come better promotion low frequency tone quality, improve medium-high frequency tone quality.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The above detailed description of the open bone acoustic conduction speaker and the earphone provided by the present invention, and the specific examples applied herein have been set forth to explain the principles and embodiments of the present invention, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. An open bone acoustic conduction speaker is characterized by comprising a shell with at least one first air hole and/or at least one second air hole, and an elastic sheet, a driving component and a vibrating component which are accommodated in the shell;

the driving assembly is connected with the shell through an elastic sheet;

2. The open bone acoustic conduction speaker of claim 1, wherein the vibration assembly comprises a voice coil and a diaphragm;

the voice coil is connected to the lower end of the vibrating diaphragm.

3. The open bone-acoustic conduction speaker of claim 1, wherein the drive assembly comprises: u iron and a magnet;

4. The open bone acoustic conduction speaker of claim 3, wherein the drive assembly further comprises a magnetically permeable sheet;

5. The open bone-acoustic conduction speaker of claim 1, wherein the housing comprises: a cavity back shell and a cavity front shell;

6. The open bone acoustic conduction speaker of claim 5, wherein the first air vent is located on a side and/or bottom surface of the cavity back shell, and the second air vent is located on a side and/or bottom surface of the cavity front shell.

7. The open bone acoustic conduction speaker of claim 2, wherein the diaphragm is a two-piece diaphragm;

8. The open bone sound conduction speaker according to claim 1, further comprising a first tuning member and a second tuning member, wherein the first tuning member fits inside the first air hole; the second tuning member is attached to the inside of the second air hole.

9. The open bone acoustic conduction speaker according to any one of claims 1 to 8, further comprising a bracket attached to an inner wall of the housing; the housing is connected to a drive assembly and a vibration assembly through the bracket; the method specifically comprises the following steps:

the edge of the vibration assembly is connected to the upper end of the bracket.

10. An open bone sound conduction headset, comprising a shell assembly, and an open bone sound conduction speaker according to any one of claims 1-8 housed within the shell assembly;

11. The open bone acoustic conduction headset of claim 10, further comprising a headset;

the headset assembly is connected to the earshell assembly.

12. The open bone acoustic conduction headset of claim 11, wherein the headset assembly includes a U-shaped headset, a rotating member, and a damping member;

the U-shaped head is connected to one end of the rotating piece through a damping piece, and the other end of the rotating piece is connected to the earmuff component; or the like, or, alternatively,