CN217388965U - Can improve earphone core and bone conduction earphone of acoustics expressive force - Google Patents

Abstract

The utility model discloses a can improve earphone core and bone conduction earphone of acoustics expression, earphone core includes: core housing and transducing device, transducing device install in the holding cavity, this transducing device includes: the earphone comprises a support part and a vibrator positioned in the support part, wherein a vibrating diaphragm is arranged between the support part and a movement shell, the vibrating diaphragm divides an accommodating cavity into a front cavity and a rear cavity, the front cavity is communicated with a front cover provided with a contact area, and the vibrating diaphragm generates air conduction sound transmitted to human ears through a sound outlet while vibrating by a transducer so that the earphone movement can simultaneously output bone conduction sound and air conduction sound; the bracket part is provided with a tuning pipe communicated with the rear cavity. The utility model discloses bone conduction and gas conduction to make the earphone can export bone conduction sound and gas conduction sound simultaneously, thereby further improve the acoustics expressive force of earphone. In addition, the rear cavity can be communicated through the tuning pipe, so that a high-pressure area of the rear cavity is damaged, the wavelength of standing waves in the rear cavity is reduced, and better acoustic expressive force is obtained.

Description

Can improve earphone core and bone conduction earphone of acoustics expressive force

The technical field is as follows:

the utility model relates to an earphone product technology field refers in particular to an earphone core and bone conduction earphone that can improve acoustics expressive force.

Background art:

bone conduction headsets typically include two headset bodies and a rear suspension assembly connecting the two headset bodies. The earphone body comprises an ear-hook component and a machine core part which are fixedly connected together, wherein the machine core part is used as a core component of the bone conduction earphone and is required to be in contact with the skin surface of the head of a user in the use process. The transduction device is arranged in the earphone core and enables the skin contact area of the earphone body to generate bone conduction sound. The containing cavity in the machine core is divided into a front cavity and a back cavity by a vibrating diaphragm. A sound outlet communicated with the rear cavity is arranged on the machine core part. The vibrating diaphragm generates air conduction sound transmitted to human ears from the sound outlet hole in the relative operation process of the energy conversion device, so that the bone conduction earphone can output the bone conduction sound and the air conduction sound simultaneously, and the acoustic performance of the earphone is improved.

In the in-service use process, this kind of air guide sound generating mechanism who directly passes through the vibrating diaphragm sound production, at the during operation, the acoustic pressure of back chamber is great, direct expression does: the peak resonance frequency of the resonance peak in the frequency response curve of the air conduction sound output through the sound outlet hole can have an attenuation problem at medium and high frequencies. For this reason, the present inventors have proposed the following technical solutions.

The utility model has the following contents:

the utility model discloses the first technical problem that will solve just lies in overcoming prior art not enough, provides an earphone core that can improve the acoustics performance.

In order to solve the first technical problem, the utility model adopts the following technical scheme: an earphone core for improving acoustic performance, comprising: core housing and transducer, the core housing in be formed with an holding cavity, the core housing is including the protecgulum and the back lid that each other approximately close, transducer install in the holding cavity, this transducer includes: when the earphone is used, a contact area on the front cover is in contact with a human body, the transduction device converts an electric signal into mechanical vibration, the contact area generates bone conduction sound under the action of the transduction device, a vibrating diaphragm is arranged between the support part and the movement shell, the vibrating diaphragm divides the accommodating cavity into a front cavity and a rear cavity, the front cavity is communicated with the front cover provided with the contact area, and the vibrating diaphragm generates air conduction sound transmitted to human ears through the sound outlet hole while vibrating the transduction device, so that the movement of the earphone can simultaneously output the bone conduction sound and the air conduction sound; the bracket part is provided with a tuning pipe communicated with the rear cavity.

Further, in the above technical solution, the cavity cover is provided with a front cavity tone tuning hole communicated with the front cavity.

Further, in the above technical solution, the sound outlet is located on the rear cover.

Further, in the above technical solution, the diaphragm surrounds the transducing device.

Further, in the above technical solution, the bracket portion is provided with a plurality of tuning pipes communicated with the rear cavity.

Further, in the above technical solution, the tuning tube is tubular and extends from the support portion to the rear cavity.

The utility model discloses the second technical problem that will solve just lies in overcoming prior art's not enough, provides a bone conduction earphone that can improve acoustic expression, and it has adopted following technical scheme: a bone conduction headset that can improve acoustic performance, comprising: two earphone cores, two ear-hang subassemblies and one back hang the subassembly, wherein hang the both ends of subassembly respectively with two ear-hang subassemblies and be connected, two earphone cores are connected with two ear-hang subassemblies respectively, earphone core adopt foretell earphone core of improving the acoustics expressive force.

Further, in the above technical solution, the two ear hook assemblies are respectively provided with a main control unit and a battery.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect:

firstly, the earphone core combines bone conduction and air conduction, so that the earphone can output bone conduction sound and air conduction sound simultaneously, and the acoustic expressive force of the earphone is further improved.

Secondly, be provided with the tuning pipe with the rear chamber intercommunication on earphone's transducer's the support portion, can be with the rear chamber intercommunication through the tuning pipe to destroy the high-pressure area of rear chamber, reduce the wavelength of the intracavity standing wave of rear, the peak value resonant frequency of the formant shifts to the high frequency in the frequency response curve of the air conduction sound of like this output through the sound outlet, and it can appear attenuating to reduce the high frequency.

Finally, the tuning pipe is arranged on the energy conversion device instead of being directly arranged on the rear cover of the machine core shell, so that the tuning hole with relatively large damage degree to the high-pressure area of the rear cavity is far away from the sound outlet hole as far as possible, and the size limitation of the machine core shell and the requirement for the damage to the high-pressure area are taken into consideration.

To sum up, the utility model adopts the above technical scheme, make bone conduction earphone can obtain better acoustics expressive force.

Description of the drawings:

fig. 1 is a schematic structural diagram of the earphone core of the present invention;

fig. 2 is a perspective view of the bone conduction headset of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

See fig. 1, the utility model provides an earphone core that can improve acoustic expression power, include: a movement shell 1 and a transducer device 2.

The energy conversion device comprises a movement shell 1, a containing cavity 10 is formed in the movement shell 1, the movement shell 1 comprises a front cover 11 and a rear cover 12 which are mutually covered, and the energy conversion device 2 is arranged in the containing cavity 10. As a core component of the bone conduction earphone, when it is used, since vibration of a solid body needs to be passed, the movement case 1 needs a contact area with the skin of the human head, and in this embodiment, the contact area is provided on the front cover 11. When the bone conduction device is used, the contact area is in contact with a human body, the transducer device 2 converts the electric signal into mechanical vibration, and the contact area generates bone conduction sound under the action of the transducer device 2.

The transducer device 2 comprises: the transducer comprises a bracket part 21 and a transducer 20 positioned in the bracket part 21, wherein the transducer 20 can convert the output audio electrical signal into mechanical vibration.

The earphone comprises a support part 21 and a movement shell 1, wherein a vibrating diaphragm 3 is arranged between the support part 21 and the movement shell 1, the vibrating diaphragm 3 surrounds a transducer 2 and divides a containing cavity 10 into a front cavity 101 and a rear cavity 102, the front cavity 101 is communicated with a front cover 11 provided with a contact area, a sound outlet 13 is positioned on a rear cover 12, and the vibrating diaphragm 3 generates air conduction sound transmitted to human ears through the sound outlet 13 when the transducer 2 vibrates, so that the earphone movement can output bone conduction sound and air conduction sound simultaneously.

The bracket portion 21 is provided with a tuning pipe 210 communicated with the rear cavity 102, and in the embodiment, the bracket portion 21 is provided with a plurality of tuning pipes 210 communicated with the rear cavity 102. The tuning tube 210 is tubular and extends from the support portion 21 outwardly into the rear cavity 102. The tuning tube 210 is spaced apart from the sound outlet 13. Because the tuning pipe 210 communicated with the rear cavity 102 is arranged on the support part 21 of the transducer device 2, the rear cavity 102 can be communicated through the tuning pipe 210, so that a high-pressure area of the rear cavity 102 is damaged, the wavelength of standing waves in the rear cavity 102 is reduced, the peak value resonant frequency of a resonant peak in a frequency response curve of the air conduction sound output through the sound outlet 13 shifts to high frequency, and the attenuation of the high frequency is reduced.

In addition, the cavity cover 11 is provided with a front cavity tone adjusting hole 110 communicated with the front cavity 101, so as to further improve the acoustic expressive force of the earphone.

Fig. 2 shows a perspective view of a bone conduction earphone capable of improving acoustic performance according to the present invention, which includes: two earphone movements 100, two ear-hang subassemblies 4 and one hang subassembly 5 after, wherein hang the both ends of subassembly 5 after and be connected with two ear-hang subassemblies 4 respectively, two earphone movements 100 are connected with two ear-hang subassemblies 4 respectively, the foretell earphone movement who improves the acoustics expressive force of earphone movement 100.

The two ear-hang components 4 are respectively provided with a main control unit and a battery.

The utility model discloses with bone conduction and gas conduction inter combination to further improve the acoustics performance of earphone, made the user can obtain the best body and felt experience.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. An earphone core for improving acoustic performance, comprising: core housing (1) and transducer device (2), core housing (1) in be formed with an accommodation cavity (10), core housing (1) including protecgulum (11) and back lid (12) that each other approximately close, transducer device (2) install in accommodation cavity (10), this transducer device (2) include: support portion (21) and oscillator (20) that are located support portion (21), when the earphone used, the contact area on protecgulum (11) contacted with the human body, and transducing device (2) turns into mechanical vibration with the signal of telecommunication, makes the contact area produce bone conduction sound, its characterized in that under transducing device (2) effect:

a vibrating diaphragm (3) is arranged between the support part (21) and the machine core shell (1), the accommodating cavity (10) is divided into a front cavity (101) and a rear cavity (102) by the vibrating diaphragm (3), the front cavity (101) is communicated with a front cover (11) provided with a contact area, and the vibrating diaphragm (3) generates air conduction sound which is transmitted to human ears through a sound outlet (13) when the energy conversion device (2) vibrates, so that the machine core of the earphone can output bone conduction sound and air conduction sound simultaneously;

the bracket part (21) is provided with a tuning pipe (210) communicated with the rear cavity (102).

2. An earphone movement for improving acoustic performance according to claim 1, wherein: the front cover (11) is provided with a front cavity sound adjusting hole (110) communicated with the front cavity (101).

3. An earphone movement for improving acoustic performance according to claim 1, wherein: the sound outlet (13) is positioned on the rear cover (12).

4. An earphone movement for improving acoustic performance according to claim 1, wherein: the vibrating diaphragm (3) surrounds the energy conversion device (2).

5. An earphone movement for improving acoustic performance according to claim 1, wherein: the bracket part (21) is provided with a plurality of tuning pipes (210) communicated with the rear cavity (102).

6. An earphone movement for improving acoustic performance according to claim 5, wherein: the tuning tube (210) is tubular and extends outwards from the support part (21) to the rear cavity (102).

7. A bone conduction headset that can improve acoustic performance, comprising: hang subassembly (5) after two earphone cores (100), two ear-hang subassemblies (4) and one, wherein hang the both ends of subassembly (5) after and be connected with two ear-hang subassemblies (4) respectively, two earphone cores (100) are connected its characterized in that with two ear-hang subassemblies (4) respectively: the earphone movement (100) adopts the earphone movement for improving the acoustic performance as claimed in any one of claims 1 to 6.

8. A bone conduction earpiece for improving acoustic performance as claimed in claim 7, wherein: the two ear-hang components (4) are respectively provided with a main control unit and a battery.

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