WO2016173261A1

WO2016173261A1 - Modularized contoured earphone and production method therefor

Info

Publication number: WO2016173261A1
Application number: PCT/CN2015/097320
Authority: WO
Inventors: 俞辰; 周威; 岐维佳
Original assignee: 西安慕声电子科技有限公司
Priority date: 2015-04-28
Filing date: 2015-12-14
Publication date: 2016-11-03
Also published as: CN104936054B; CN104936054A

Abstract

The present invention belongs to the technical field of earphones, and particularly relates to a modularized contoured earphone and a production method therefor. The modularized contoured earphone comprises an earphone shell, a speaker, a frequency divider, an isolating layer, a control board, a communication module, a sensor set added according to demands and an intelligent module component which can be optionally added according to demands. By means of a customized shell, the earphone can be customized to match a human body, thereby ensuring wearing comfort, and will not easily fall off. Moreover, since the earphone matches shapes of the cavum conchae and auditory meatus of an ear, the space volume is big enough to hold a variety of sensors, and functional modules can be customized according to the demands of a user, thereby increasing the intelligent degree of the earphone. The earphone shell adopts the isolating layer to divide the earphone shell into two units, i.e. an in-ear unit and an external unit. The in-ear unit completes basic functions of the earphone, and is sealed by the isolating layer. The intelligent module component can be added into the external unit according to demands, which is convenient to install and replace.

Description

Modular profiling earphone and manufacturing method thereof

Technical field

The invention belongs to the technical field of earphones, and in particular relates to a modular profiling earphone and a manufacturing method thereof.

Background technique

Headphones are human portable audio, which can be used to listen to music, calls and other scenes. With the popularity of smart devices such as mobile phones and tablet computers, headphones have become an indispensable part of people's lives.

However, the industrial production of ordinary earphones is uniform and cannot be well adapted to the human ear, resulting in uncomfortable wearing and easy dropping. In addition, the common earphone cavity is limited, so that the speaker unit and the sensor are limited. The traditional custom earphones can only be hand-made. Due to the large difference in the shape of the ear canal of each person, the traditional customized earphones cannot be mass-produced and modularized, and the use value is limited.

To this end, the present invention provides a modular profiling headset, including a headphone housing, a speaker, a frequency divider, an isolation layer, a control panel, a communication module, and a sensor group added as needed, and can be optionally added as needed. Intelligent module assembly; through the customized production of the shell, the headset and the human body can be customized to ensure the wearing comfort, not easy to fall off; at the same time, because the headset matches the custom contour, the space is large enough to accommodate multiple sensors The function module can be customized according to the user's requirements to improve the intelligence of the earphone; the earphone casing adopts the isolation layer to divide the earphone casing into two units of the ear unit and the external unit, and the ear unit completes the basic function of the earphone, and the isolation layer Closed; intelligent module components can be added to the external unit as needed to facilitate installation and replacement.

Obtain customized model data, which can be injected into the ear canal by using a medical foaming material in the prior art, and the ear canal is inverted; the inverted model is taken out, and then the ear canal mold is scanned by a 3D scanner to obtain the 3D of the ear canal. The model either explores the 3D scanner into the human ear canal and directly acquires the 3D model. The method proposed by the present invention can also be used to synthesize human body customized 3D model data through multi-angle photos or videos. In this way, it is convenient to realize custom modulo of different users and realize mass production of products.

Summary of the invention

The object of the present invention is to overcome the problems of low wearing comfort, small headphone space, difficulty in integrating multiple accessories, complicated customization, and low intelligence.

To this end, the present invention provides a modular profiling headset comprising a headphone housing, a speaker, a frequency divider, an isolation layer, a control panel, and a communication module for information transmission;

The isolation layer is fixed inside the earphone housing, and the isolation layer divides the internal cavity of the earphone housing into two parts, an in-ear unit and an external unit. The in-ear unit is a completely enclosed space, and the isolation layer has no less than Three for implementing the in-ear unit and the external unit Electrically connected metal contacts, metal contacts on the isolation layer enable communication between the module in the in-ear unit and the external unit module, the isolation layer metal contacts include at least one power supply positive connection contact, power supply negative connection contact and signal connection Contact points; depending on the sensor group in the in-ear unit, the power connection contacts and signal connection contacts increase.

The shape of the in-ear unit is similar to the shape of the ear cavity and the ear canal of the human ear; to meet the popular demand, the in-ear unit is provided with different sizes, which are based on the shape of the ear cavity and the ear canal of a certain number of people. Collect and then design a shell of a different size that is similar in shape to the ear's ear cavity and ear canal. Of course, this design does not guarantee that everyone can match it perfectly. Therefore, the ear unit of the earphone housing can also be contoured according to the shape of the ear chamber and the ear canal of different individuals. For the prior art, the contour housing can be realized.

The speaker is fixed in the in-ear unit; the frequency divider is fixed in the in-ear unit, electrically connected to the speaker, and is connected with the metal contact on the isolation layer to achieve electrical connection; the control board is fixed on the external In the unit, the metal contacts on the isolation layer are connected to realize electrical connection; the communication module is fixed in the external unit and electrically connected to the control board.

The communication module may be a communication module having a wired connection function, and the communication module has an earphone connection hole, and the earphone housing has an opening for inserting the earphone at a position corresponding to the earphone connection hole of the communication module. The communication module may also be a communication module having a wireless connection function, and the communication module includes a Bluetooth module electrically connected to the control board and a power supply for powering the control board and the Bluetooth module.

The above-mentioned modular profiling earphone may further comprise a sensor group for measuring human body parameters and an intelligent module assembly for intelligent expansion; wherein the sensor group is fixed in the in-ear unit and on the isolation layer Metal contacts are connected for electrical connection; the sensor group includes at least a temperature sensor, a heart rate sensor, a blood oxygen saturation sensor, a blood pressure sensor, and a signal processing circuit, and a temperature sensor, a heart rate sensor, a blood oxygen saturation sensor, a blood pressure sensor, and a signal The processing circuit is electrically connected, and the signal processing circuit is electrically connected to the metal contacts of the isolation layer. The sensor group is a custom module that can be selected and assembled as needed, or without any sensors.

The intelligent module assembly is fixed in the external unit, and the intelligent module assembly has no less than two metal connection points for electrical connection and communication with the metal contacts on the isolation layer. The intelligent module assembly comprises at least a processor, a gyroscope, a signal processing module, a Bluetooth module, a power supply and a metal connection contact, wherein the gyroscope is electrically connected to the signal processing module, the signal processing module is electrically connected to the processor, the Bluetooth module, the metal connection touch The points are electrically connected to the processor, and the processor, the gyroscope, the signal processing module, the Bluetooth module, and the metal connection contacts are electrically connected to the power source. The smart module assembly and the earphone housing are fixed by a buckle, which can be conveniently installed and disassembled; the smart module assembly and the earphone housing are carded and the metal connection point is in contact with the metal contact on the isolation layer to Achieve electrical connections. The intelligent module components are custom-made modules that can be selected and assembled as needed or without any sensors installed.

In the above-mentioned modular profiling earphone, the speaker comprises at least one speaker unit, each speaker unit comprises a speaker unit, a closed acoustic chamber for acoustically fixing the speaker unit, and a sound guiding tube. The speaker unit is fixed in the sound Inside the cavity, the acoustic cavity has a sound guiding hole matched with the sound guiding tube and a wire hole for electrically connecting the speaker unit and the frequency divider; one end of the sound guiding tube passes through the acoustic cavity The sound guiding hole is connected to the speaker unit, and the other end is connected to the sound hole on the ear unit. When there are multiple speaker units on the speaker, a plurality of sound guiding holes will be reserved on the acoustic cavity for the guiding effect of the sound guiding holes of each speaker unit, and the sound hole matching the sound guiding tube can also be used. There are multiple.

In the above-mentioned modular profiling earphone, the profiling design may be obtained by a 3D printer after performing mold reversal on the ear cavity and the ear canal. The operation process is to first inject a medical foaming material into the ear cavity and the ear canal, and perform the mold on the ear cavity and the ear canal; take out the mold model, and then scan the obtained mold through a 3D scanner to obtain the ear cavity. And the 3D model of the ear canal, this technique belongs to the prior art.

In the above-mentioned modular prosthetic earphone, the 3D model of the ear cavity and the ear canal is obtained by the following method: the probed 3D scanner is probed into the human ear cavity and the ear canal, and the 3D model is directly obtained. Technology belongs to the prior art.

A method for preparing a modular profiling earphone comprises the following steps:

(1) Take a multi-angle photograph of the human ear cavity and the ear canal to obtain multiple images of different angles;

(2) obtaining a 3D model of the ear cavity and the ear canal of the ear unit by synthesizing the acquired photograph;

(3) obtaining a model of the earphone shell by performing vector transformation processing on the acquired model of the in-ear unit; and extracting the ear model and the ear canal 3D model obtained in step (2) Stretch to obtain a model of the external unit;

(4) Print out the earphone housing through a 3D printer.

In the above method for preparing a modular profiling earphone, the parameters obtained in the steps (1) and (2) may also be video, that is, the camera is used to perform multi-angle imaging on the human ear cavity and the ear canal. Through the video processing, a 3D model of the ear cavity and the ear canal of the ear unit is obtained.

The beneficial effects of the present invention are mainly manifested in the following aspects:

(1) With modular design, users can combine and replace functional modules according to their needs, which can meet the individual needs to the greatest extent;

(2) Propose a simple and convenient method for obtaining the human ear cavity and ear canal model, which greatly simplifies the complexity of mass production and reduces the production cost;

(3) The outer casing is consistent with the shape of the user's customized ear cavity and ear canal, which increases the wearing comfort. At the same time, the ear canal and the ear canal are shaped and the external unit is added, so that there is enough inside the earphone housing. Various sensor modules are installed in the space to facilitate the expansion of functions and improve the intelligence of the headphones.

The invention will now be further described with reference to the accompanying drawings.

DRAWINGS

1 is a schematic view of a first embodiment of a modular profiling headset of the present invention.

2 is a schematic view of a second embodiment of a modular profiling headset of the present invention.

3 is a schematic view of a third embodiment of a modular profiling headset of the present invention.

4 is a schematic structural view of a speaker unit.

FIG. 5 is a schematic diagram of a fourth embodiment of a modular profiling headset according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS: 1, earphone housing; 2, speaker; 3, frequency divider; 4, isolation layer; 5, control board; 6, communication module; 7, sensor group; 8, intelligent module component; , in-ear unit; 1-2, external unit; 1-3, sound hole; 4-1, metal contact; 8-1, metal connection contact; 2-1, speaker unit; 2-2, acoustic Cavity; 2-3, sound tube; 2-4, sound guide hole; 2-5, wire hole; Figure 6 mark description: 6-1, earphone connection hole; 1-4, opening; 6-2 , Bluetooth module; 6-3, power supply;

detailed description

Example 1

1 is a schematic diagram of a first embodiment of a modular profiling headset according to the present invention, including an earphone housing 1 and a speaker 2, a frequency divider 3, an isolation layer 4, a control board 5, and a communication module for information transmission. 6. A sensor group 7 for measuring human body parameters and an intelligent module assembly 8 for intelligent expansion. The isolation layer 4 is fixed inside the earphone housing 1, and the isolation layer 4 divides the internal cavity of the earphone housing 1 into two parts, an in-ear unit 1-1 and an external unit 1-2, and five on the isolation layer 4. a metal contact 4-1 for electrically connecting the in-ear unit 1-1 and the outer unit 1-2; one of the five metal contacts 4-1 is a positive pole contact of the power source, and one is a negative pole contact of the power source, One is an audio signal contact, one is a sensor group 7 connection contact, and one is an intelligent module component 8 connection contact; the speaker 2, the frequency divider 3 and the sensor group 7 are both fixed in the in-ear unit 1-1, and the in-ear unit 1 -1 is a closed cavity, the internal speaker 2, the frequency divider 3 and the metal contacts 4-1 on the isolation layer 4 are electrically connected to the modules in the external unit 1-2.

The frequency divider 3 is electrically connected to the speaker 2, and is also connected to the metal contact 4-1 on the isolation layer 4 for electrical connection, respectively connected to the positive contact of the power source, the negative contact of the power source and the audio signal contact; 7 Electrically connected to the power supply positive contact on the isolation layer 4, the power supply negative contact, and the sensor group 7 connection contact three metal contacts 4-1. The sensor group 7 includes a heart rate sensor that outputs sensor signals to the external unit 1-2 through the sensor group 7 connection contacts.

The shape of the in-ear unit 1-1 is similar to the shape of the ear cavity and the ear canal of the human ear; the acquisition method is based on collecting the shape of the ear cavity and the ear canal of a certain number of people, and then designing different sizes and The ear's ear cavity and the outer shape of the ear canal are similar in shape. Of course, this design does not guarantee that everyone can match it perfectly. Therefore, the ear unit 1-1 of the earphone housing 1 can also be contoured according to the shape of the ear chamber and the ear canal of different individuals. For the prior art, the contour housing is achievable.

The control board 5, the communication module 6 and the intelligent module assembly 8 are fixed in the external unit 1-2, and the communication module 6 is in a wireless communication mode, including a Bluetooth module 6-2 and a power source 6-3, a Bluetooth module 6-2 and a power source 6- 3 are electrically connected to the control board 5, the power supply positive contact on the control board 5 and the isolation layer 4, the power supply negative contact, the audio signal contact, the sensor group 7 connection contact, the intelligent module assembly 8 connection contact five metals The contact module 4-1 is electrically connected; the intelligent module assembly 8 is fixed in the external unit 1-2, the intelligent module assembly 8 includes a gyroscope, and the intelligent module assembly 8 has three metal connection points 8-1, respectively on the isolation layer 4. The positive pole contact of the power source, the negative pole contact of the power source, the intelligent module assembly 8 and the three metal contacts 4-1 of the connection contact are electrically connected, and the smart module assembly 8 and the earphone housing 1 are fixed by the buckle, which is convenient. Installation and disassembly; after the smart module assembly 8 is stuck with the earphone housing 1, the metal connection point 8-1 is in contact with the metal contact 4-1 on the isolation layer 4 to achieve electrical connection.

Example 2

2 is a schematic diagram of a second embodiment of a modular profiling headset according to the present invention; including an earphone housing 1 and a speaker 2, a frequency divider 3, an isolation layer 4, a control panel 5, and a communication module for information transmission. 6 and intelligent module component 8 for intelligent expansion. Wherein, the isolation layer 4 is fixed inside the earphone housing 1, and the isolation layer 4 divides the internal cavity of the earphone housing 1 into two parts, the in-ear unit 1-1 and the outer unit 1-2, and three on the isolation layer 4. a metal contact 4-1 for electrically connecting the in-ear unit 1-1 and the outer unit 1-2; one of the three metal contacts 4-1 is a positive pole contact of the power source, and one is a negative pole contact of the power source, one For the audio signal contact; the speaker 2, the frequency divider 3 and the sensor group 7 are all fixed in the in-ear unit 1-1, the in-ear unit 1-1 is a closed cavity, the internal speaker 2, the frequency divider 3 and the rely The metal contacts 4-1 on the isolation layer 4 are electrically connected to the modules in the external unit 1-2.

The frequency divider 3 is electrically connected to the speaker 2 and is also connected to the metal contacts 4-1 on the isolation layer 4 for electrical connection to the positive supply contact, the negative supply contact and the audio signal contact, respectively.

The control board 5, the communication module 6 and the intelligent module assembly 8 are fixed in the external unit 1-2, the communication module 6 is in a wired communication mode, the communication module 6 has a headphone connection hole 6-1, and the earphone housing 1 corresponds to the communication module earphone. At the position of the connection hole 6-1, there are openings 1-4 for inserting the earphone. The communication module 6 is electrically connected to the control board 5; the control board 5 is electrically connected to the power supply positive contact on the isolation layer 4, the power supply negative contact, and the three metal contacts 4-1 of the audio signal contact; the intelligent module assembly 8 is fixed outside. In the unit 1-2, the intelligent module assembly 8 includes a gyroscope and a Bluetooth module. The smart module assembly 8 has two metal connection points 8-1, and the power lines of the gyroscope and the bluetooth module are respectively connected to the two metal points. 8-1 electrical connection; two metal connection points 8-1 and isolation layer 4 respectively The positive contact of the power supply and the negative contact of the power supply are electrically connected to the two metal contacts 4-1. The smart module assembly 8 and the earphone housing 1 are fixed by a buckle, which can be conveniently installed and disassembled; the smart module assembly 8 is stuck with the earphone housing 1 and the metal connection point 8-1 and the isolation layer 4 The metal contacts 4-1 are correspondingly in contact to achieve an electrical connection.

Example 3

3 is a schematic diagram of a third embodiment of a modular profiling earphone according to the present invention, including an earphone housing 1 and a speaker 2, a frequency divider 3, an isolation layer 4, a control board 5, and a communication module for information transmission. 6. A sensor group 7 for measuring human body parameters and an intelligent module assembly 8 for intelligent expansion. Wherein, the isolation layer 4 is fixed inside the earphone housing 1, and the isolation layer 4 divides the internal cavity of the earphone housing 1 into two parts, the in-ear unit 1-1 and the outer unit 1-2, and the isolation layer 4 has seven a metal contact 4-1 for electrically connecting the in-ear unit 1-1 and the outer unit 1-2; one of the seven metal contacts 4-1 is a positive pole contact of the power source, and one is a negative pole contact of the power source, One is the audio signal contact, one is the heart rate signal connection contact, one is the body temperature signal connection contact, one is the gyroscope signal connection contact, one is the GPS module signal connection contact; the speaker 2, the frequency divider 3 and the sensor Group 7 is fixed in the in-ear unit 1-1, the in-ear unit 1-1 is a closed cavity, the internal speaker 2, the frequency divider 3 and the metal contacts 4-1 and the external unit on the isolation layer 4 The modules in 1-2 are electrically connected.

The frequency divider 3 is electrically connected to the speaker 2, and is also connected to the metal contact 4-1 on the isolation layer 4 for electrical connection, respectively connected to the positive contact of the power source, the negative contact of the power source and the audio signal contact; 7 includes a heart rate sensor and a temperature sensor, and the sensor signal is output to the external unit 1-2 through the heart rate signal connection contact and the body temperature signal connection contact on the isolation layer. The sensor group 7 is electrically connected to the power supply positive contact on the isolation layer 4, the power supply negative contact, the heart rate signal connection contact, and the body temperature signal connection contact four metal contacts 4-1.

The shape of the in-ear unit 1-1 is similar to the shape of the ear cavity and the ear canal of the human ear; the acquisition method is based on collecting the shape of the ear cavity and the ear canal of a certain number of people, and then designing different sizes and The ear's ear cavity and the outer shape of the ear canal are similar in shape. Of course, this design does not guarantee that everyone can match it perfectly. Therefore, the in-ear unit 1-1 of the earphone housing 1 can also be contoured according to the shape of the ear chamber and the ear canal of different individuals, and the implementation method is as follows:

(2) obtaining a 3D model of the ear cavity and the ear canal of the ear unit (1-1) by synthesizing the acquired photograph;

(3) obtaining a model of the earphone casing (1) by performing vector transformation processing on the model of the obtained in-ear unit (1-1); the basis of the 3D model of the ear-arm cavity and the ear canal obtained in the step (2) Upper, stretching outside the ear model to obtain a model of the external unit (1-2);

(4) printing out the earphone housing (1) through a 3D printer;

The parameters obtained in the above steps (1) and (2) may also be video, that is, the camera is used to perform multi-angle imaging on the human body's ear cavity and the ear canal, and the ear cavity of the in-ear unit is obtained through video processing. And a 3D model of the ear canal.

The control board 5, the communication module 6 and the intelligent module assembly 8 are fixed in the external unit 1-2, and the communication module 6 is in a wireless communication mode, including a Bluetooth module 6-2 and a power source 6-3, a Bluetooth module 6-2 and a power source 6- 3 are electrically connected to the control board 5, the power supply positive contact on the control board 5 and the isolation layer 4, the power supply negative contact, the audio signal contact, the heart rate signal connection contact, the body temperature signal connection contact, the gyroscope signal connection Point, GPS module signal connection contact seven metal contacts 4-1 are connected. The intelligent module assembly 8 is fixed in the external unit 1-2. The intelligent module assembly 8 includes a gyroscope and a GPS module. The intelligent module assembly 8 has four metal connection points 8-1, respectively, and a positive power supply on the isolation layer 4. Contact, power supply negative contact, gyroscope signal connection contact, GPS module signal connection contact, four metal contacts 4-1 are electrically connected, and the smart module assembly 8 and the earphone housing 1 are fixed by a buckle. It can be conveniently installed and disassembled; after the smart module assembly 8 is stuck with the earphone housing 1, the metal connection point 8-1 is in contact with the metal contact 4-1 on the isolation layer 4 to achieve electrical connection.

4 is a schematic structural view of a speaker unit. The speaker 2 includes a speaker unit including a speaker unit 2-1, a closed acoustic chamber 2-2 having acoustic characteristics, and a sound guide tube 2-3. The speaker unit 2-2 is fixed inside the acoustic cavity 2-2, and the acoustic cavity 2-2 has a sound guiding hole 2-4 matched with the sound guiding tube 2-3 and one for realizing a sound hole unit 2-1 and a wire hole 2-5 electrically connected to the frequency divider 3; one end of the sound pipe 2-3 passes through the sound hole 2-4 on the acoustic cavity 2-2 and the speaker unit 2-1 Connected, the other end is connected to the sound hole 1-3 on the in-ear unit 1-1.

Example 4

On the basis of Embodiment 3, further, the speaker 2 includes three speaker units, each of which includes a speaker unit 2-1, a closed acoustic chamber 2-2 having acoustic characteristics, and a sound guide tube 2-3. The speaker unit 2-2 is fixed inside the acoustic cavity 2-2, and the acoustic cavity 2-2 has three sound guiding holes 2-4 and three for matching the sound guiding tube 2-3. a wire hole 2-5 for electrically connecting the speaker unit 2-1 and the frequency divider 3; one end of the sound guiding tube 2-3 passes through the sound guiding hole 2-4 and the speaker unit on the acoustic cavity 2-2 The 2-1 is connected, and the other end is connected to the sound hole 1-3 on the in-ear unit 1-1.

FIG. 5 is a schematic view showing a fourth embodiment of a modular profiling earphone according to the present invention, comprising three speaker units, three speaker units being independent of each other, and passing through respective wire holes 2-5 in a wire manner. The frequency converter 3 is electrically connected.

The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. It is obvious that various structural changes may be made without departing from the scope of the invention.

Claims

A modular profiling earphone comprising a headphone housing (1) and a speaker (2), characterized by further comprising: a frequency divider (3), an isolation layer (4), a control board (5) and for information transmission Communication module (6); among them,

The isolation layer (4) is fixed inside the earphone housing (1), and the isolation layer (4) divides the internal cavity of the earphone housing (1) into an in-ear unit (1-1) and an external unit (1). - 2) two parts, the isolation layer (4) has not less than three metal contacts (4-1) for realizing electrical connection between the in-ear unit (1-1) and the external unit (1-2);

The shape of the in-ear unit (1-1) is similar to the shape of the ear cavity and the ear canal of the human ear;

The speaker (2) is fixed in the in-ear unit (1-1);

The frequency divider (3) is fixed in the in-ear unit (1-1), electrically connected to the speaker (2), and connected to the metal contact (4-1) on the isolation layer (4) for electrical connection. ;

The control board (5) is fixed in the external unit (1-2) and connected to the metal contact (4-1) on the isolation layer (4) to achieve electrical connection;

The communication module (6) is fixed in the external unit (1-2) and electrically connected to the control board (5).
A modular profiling earphone according to claim 1, further comprising: a sensor group (7) for measuring human body parameters and an intelligent module assembly (8) for intelligent expansion; wherein

The sensor group (7) is fixed in the in-ear unit (1-1) and connected to the metal contact (4-1) on the isolation layer (4) to achieve electrical connection;

The intelligent module assembly (8) is fixed in the external unit (1-2), and the intelligent module assembly (8) has not less than two metal contacts for the isolation layer (4) (4-1) ) Metal connection point (8-1) for electrical connection and communication.
A modular profiling earphone according to claim 1 or 2, characterized in that the in-ear unit (1-1) of the earphone housing (1) is according to different individual ear cavities and ear canals The shape is contoured.
A modular profiling earphone according to claim 1 or 2, wherein said speaker (2) comprises at least one speaker unit, each speaker unit comprising a speaker unit (2-1), sealed An acoustic cavity (2-2) and a sound guiding tube (2-3) for fixing the speaker unit (2-1) having acoustic characteristics, the speaker unit (2-2) being fixed to the acoustic cavity Inside (2-2), the acoustic cavity (2-2) has a sound guiding hole (2-4) matching the sound guiding tube (2-3) and a speaker unit (2-1) a wire hole (2-5) electrically connected to the frequency divider (3); one end of the sound pipe (2-3) passes through the sound hole (2-4) on the acoustic cavity (2-2) and The sound unit (2-1) is connected, and the other end is connected to the sound hole (1-3) on the ear unit (1-1).
A modular profiling earphone according to claim 1 or 2, characterized in that said communication module (6) is a communication module (6) having a wired connection function, and the communication module (6) has a headphone connection The hole (6-1), the earphone housing (1) has an opening (1-4) for inserting the earphone at a position corresponding to the headphone connection hole (6-1) of the communication module.
A modular profiling earphone according to claim 1 or 2, wherein said communication module (6) is a communication module (6) having a wireless connection function, the communication module (6) comprising a Bluetooth module (6-2) electrically connected to the control board (5) and for the control board (5), the Bluetooth module (6-2) Power supply (6-3).
A modular profiling earphone according to claim 1 or 2, wherein the profiling design is obtained by a 3D printer after reversing the ear cavity and the ear canal.
The modular profiling earphone according to claim 1 or 2, wherein the in-ear unit (1-1) is probed into the human ear cavity and the ear canal by using a penetration type 3D scanner. The 3D model is acquired by the 3D printer.
A method for preparing a modular profiling earphone, comprising the steps of:

(1) Take a multi-angle photograph of the human ear cavity and the ear canal to obtain multiple images of different angles;

(2) obtaining a 3D model of the ear cavity and the ear canal of the ear unit (1-1) by synthesizing the acquired photograph;

(3) obtaining a model of the earphone housing (1) by performing vector transformation processing on the acquired model of the in-ear unit (1-1);

(4) Print out the earphone housing (1) through a 3D printer.
The method for preparing a modular profiling earphone according to claim 9, wherein the parameters obtained in the step (1) and the step (2) are also video.