TWI577192B - Throat-type microphone and communication-free device with the microphone - Google Patents

Description

Throat-type microphone and communication hands-free device including the same

The invention discloses a laryngeal microphone and a communication hands-free device including the same, in particular, the component composition of the laryngeal microphone is simplified, and the device can be implemented separately or combined with the communication hands-free device to achieve cost reduction. The function of easy assembly and improved sound collection.

The conventional throat-vibrating microphone is not suitable for use in the nose pad position of the glasses because of its large size. Therefore, it is necessary to change the structure design and reduce it to meet the demand, and the structure and conductive material for conducting the audio vibration signal. It also cannot meet the audio vibration signal transmission requirements of the nose skin. The product structure includes the patent publication No. 444998 "Ceramic Piezo Microphone", No. 462575 "Improved Structure of the Laryngeal Vibration Microphone", and No. 549780 "Protected Structure of the Laryngeal Vibration Microphone" Revealed before.

In order to solve the above problems, the applicant of the present application has also applied for the patent application disclosed in Japanese Patent No. 201006265, which mainly incorporates the microphone on the nose bone in combination with the glasses to detect the vibration of the voice in the skin and bones, and is used for voice communication. . The nasal vibration is clearer than the throat sound, but the amplitude is smaller, which is more sensitive to sound-conducting noise. Therefore, the technique of improving the sensitivity and the background noise is simplified and the structure is simplified, so that the conventional vibrating microphone can be reduced to be combined with the glasses. On the nasal bone, with the glasses, voice communication is performed, so that the disadvantages of the prior art described above can be overcome.

However, the above nasal bone conduction microphone still has the following defects:

1. The volume or thickness is still large.

2. The sound and sound quality are poor, because the nasal bone has a small amplitude of vibration, so it cannot be compared with the general air microphone and the laryngoscope microphone.

3. There are still many parts, and the assembly is not easy. If all the parts are not closely matched, the sound collection effect cannot be achieved, resulting in the production quality of the assembly being difficult to control and the yield is too low.

In addition, as far as the general laryngeal microphone is concerned, in addition to the larger volume and thickness than the nasal bone conduction microphone, there are more components missing, for example, the above patents of the Chinese Patent Publication Nos. 444998, 462575, and 549780 The inside of the microphone has a foamed cotton body. If it is not tightly combined during assembly, the sound receiving effect will be greatly reduced, and the problem of poor sound collection and distortion will be caused. As shown in the first figure, it generally has a foamed cotton. The frequency response diagram of the laryngeal microphone of the body ("frequency response diagram" is a graph with the frequency as the horizontal axis and the sensitivity as the vertical axis. It can be seen that the sound quality of the microphone is good or bad, and if the line segment in the chart is close to the horizontal line, The better the induction, the less the sound is not distorted. As can be seen from the first figure, the laryngeal microphone with the foamed body does have the problem of poor radio reception and distortion. Another example is the microphone of the patent of No. I 317605 "Low noise contact vibrating piezoelectric microphone", which has a spring inside. Although the spring can filter noise, it also causes poor reception and distortion. The problem, its frequency response diagram is shown in the second figure.

Moreover, if the above-mentioned general laryngeal microphone is combined with the communication hands-free device, the wearer will be affected by the wind-cutting sound due to the fast moving speed, and the lack of recognition of the voice signal is caused.

Therefore, there is a need to further improve innovation.

In view of the above, it can be seen that the technical problem to be solved in this case is that the nasal bone conduction microphone and the laryngeal microphone of the prior art are still large in volume or thickness due to lack of design, and the parts are numerous, the assembly is difficult and the radio is difficult to assemble. The defect of poor sound quality provides an effective technical solution for improvement.

The technical solution adopted in the present invention is to design a laryngeal sensor, which comprises a box body, a ceramic piece, a copper piece and an amplifying circuit, wherein the inside of the box body is hollow, and the outer side is An outer wall portion, and a flat space on the inner side surface of the outer wall portion, wherein one side of the ceramic piece is attached to the plane space, the ceramic piece is disposed inside the box body, and the ceramic piece is linearly connected a positive electric wire, the copper piece is disposed inside the box body, and is attached to the other side of the ceramic piece, and the copper piece is linearly connected with a negative electric wire, and the amplifying circuit provides the positive electric wire of the ceramic piece And the negative electrode wire of the copper piece is electrically connected. Second, the amplifying circuit is disposed outside or inside the cartridge body. Accordingly, by reducing the medium of the aforementioned practitioner: the foamed cotton body or the spring, the overall volume and thickness thereof can be reduced, become lighter and thinner, and the sound vibration is transmitted through the box body, that is, directly into the ceramic sheet. In order to maintain the original amplitude of the sound, the defect of poor sound quality can be overcome.

In addition, in an implementation aspect, the above-mentioned laryngeal sensor can be applied to a communication hands-free device, that is, the communication hands-free device includes the above-mentioned laryngeal sensor for receiving a voice when a user speaks The signal is the end of the message.

The above-mentioned laryngeal sensor is applied to the first type of communication hands-free device The structure is as follows: the box body of the laryngeal sensor forms a housing of the communication hands-free device, and the box body is further provided with an audio source output hole and at least one function key, and the communication hands-free device further comprises a control a circuit board, a sound amplifying device and a battery unit, wherein the control circuit board is disposed inside the box body for receiving or transmitting the sound source signal and wirelessly connecting to the external communication device, and the control circuit board is connected to The sound source output hole and the function key, and the amplification circuit of the throat sensor are disposed on the control circuit board; and the sound amplification device is electrically connected to the control circuit board, and is configured to receive the control circuit board The transmitted voice signal is the receiving end; the battery unit is still disposed inside the box body and electrically connected to the control circuit board. In view of this, a communication hands-free device combined with a laryngeal sensor is constructed, and has a better sound quality effect.

In conclusion, the laryngeal sensor can be combined with an air-conducting microphone, and can be alternatively implemented, and the air-conducting microphone is directly disposed on the control circuit board. In addition, the sound amplification device is disposed outside the box body, and is connected to the sound source output hole of the box body by wires and terminals. The sound amplifying device can be a speaker or an earphone. The battery unit is a rechargeable battery and can be charged through the sound source output hole.

In addition, the control circuit board is provided with an electrical socket, the electrical socket has a connector, and the connector protrudes out of the sound source output hole of the casing body; and the control circuit board is provided with a function key corresponding to the casing body. At least one functional operating portion, and the functional operating portion is activated by pressing a function key of the cartridge body.

Furthermore, in order to enable the wearer to combine the communication hands-free device, a knot for binding to the wearer is disposed outside the box body of the communication hands-free device. The component, the bonding component may be a devil felt, or a kit made of soft silicone, or other equivalent component, wherein the kit made of silicone has at least two holes for the safety of the wearer. The band of the cap is worn through the knot.

The second structure of the above-mentioned laryngeal sensor is applied to the communication hands-free device: the communication hands-free device comprises a control box, a control circuit board, a laryngeal sensor, and a sound amplification device. a battery unit; wherein the control box is a housing of the communication hands-free device, the interior is hollow, and the control box is provided with a sound source output hole and at least one function key; and the control circuit board is disposed inside the control box And a communication device for receiving or transmitting the sound source signal and wirelessly connecting to the outside, the control circuit board is connected to the sound source output hole and the function key; and the throat sensor is disposed outside the control box, The utility model comprises a box body, a ceramic piece, a copper piece and an amplifying circuit, wherein the inside of the box body is hollow, the outer end is an outer wall part, and a plane space is arranged on an inner side surface of the outer wall part, and the ceramic The sheet is disposed inside the box body, and one side of the ceramic sheet is attached to the plane space, and the ceramic sheet is linearly connected to a positive electric wire, and the copper sheet is disposed inside the box body and is attached to the The The other side of the ceramic piece, and the copper piece is linearly connected to a negative electrode, and the amplifying circuit is electrically connected to the positive wire of the ceramic piece and the negative wire of the copper piece, and the amplifying circuit is electrically connected to the control circuit The board, for example, can be directly disposed on the control circuit board; and the sound amplification device is electrically connected to the control circuit board, and is configured to receive the voice signal transmitted by the control circuit board as a receiving end; and the battery unit is configured Inside the control box, and electrically connected to the control circuit board. In this way, it can also constitute a communication hands-free device combined with a laryngeal sensor, and has a better sound. Quality effect.

The sound amplification device is disposed outside the control box, and is connected to the sound source output hole of the control box by wires and terminals, and the sound amplification device can be a speaker or an earphone. The battery unit is a rechargeable battery and can be charged through the sound source output hole.

In addition, the control circuit board is provided with an electrical hole socket having a connector, and the connector protrudes out of the sound source output hole of the control box; and the control circuit board is provided with a function key corresponding to the control box At least one functional operating portion, and the functional operating portion is activated by pressing a function key of the control box.

Furthermore, in order to enable the wearer to combine the communication hands-free device, a coupling element for coupling to the wearer is disposed outside the control box of the communication hands-free device, and the bonding component may be a devil felt or a soft silicone rubber. A kit made, or other equivalent component, wherein the kit made of silicone is provided with at least two through holes for the wearer's helmet to be worn.

Therefore, it is understood that the main object of the present invention is to provide an innovative structural composition of a laryngeal sensor, which is directly attached to the inner wall of the sensing end of the casing body by the ceramic piece, without using the medium of the conventional person: The foam body or the spring can not only reduce the volume and thickness of the whole body, but also make it possible to transmit the vibration of the sound through the body of the box, directly into the ceramic piece, thereby eliminating the distortion of the sound amplitude caused by the installation of the medium. The phenomenon of low distortion and sensitivity to improve the sound collection.

Moreover, another object of the present invention is to provide a communication hands-free device combined with the above-mentioned laryngeal sensor, which improves the sound receiving effect of the above-mentioned laryngeal sensor, and causes the wearer to be affected by the moving speed. Wind cuts will not affect The lack of recognition of the lack of voice signals, and enhance product value.

Please refer to the third and fourth figures. The specific embodiment of the laryngeal sensor A (throat microphone) of the present invention comprises a box body 1, a ceramic piece 2, a copper piece 3 and an enlarged view. Circuit 4; wherein:

The casing body 1 has a hollow interior, the outer end is an outer wall portion 11, and a flat space 12 is provided on the inner side surface of the outer wall portion 11 (as in the fourth figure, a boss is taken as an example).

The ceramic sheet 2 is disposed on the inside of the cartridge body 1 by directly bonding to one side of the flat space 12, and the ceramic sheet 2 is linearly connected to a positive electrode wire 21 extending out of the cartridge body 1.

The copper sheet 3 is disposed under the ceramic sheet 2 and disposed inside the box body 1, and the copper sheet 3 is linearly connected to a negative electrode wire 31 extending out of the box body 1. That is, the copper sheet 3 is attached to the other side of the ceramic sheet 2, that is, the ceramic sheet 2 is disposed between the copper sheet 3 and the plane space 12.

The amplifying circuit 4, the positive electrode wire 21 of the ceramic piece 2 and the negative electrode wire 31 of the copper piece 3 are electrically connected, and the amplifying circuit 4 may be disposed outside the box body 1 (such as the third and fourth figures), or may be disposed in the box. The inside of the body 1 (as in the fourth-A diagram).

It can be seen that the laryngeal sensor A is mainly disposed in the interior of the casing body 1 by directly bonding the ceramic sheet 2 to the plane space 12, thereby reducing the medium of the conventional consumer: the foamed cotton body or the spring. The vibration transmission of the sound directly enters the ceramic sheet 2 through the casing body 1. Since it is no longer necessary to pass through the medium, it can prevent the distortion and sensitivity from being degraded due to the reduction of the sound amplitude. The fifth phenomenon is the frequency response diagram of the laryngeal sensor A. Compared with the first and second figures, the test data shows that the laryngeal sensor A of the present invention is indeed more than the past. The technology is closer to the phenomenon of zero distortion, showing high-quality sound effects, so it can overcome the shortcomings of the poor sound quality of the listener. In other words, compared with the conventional technology (with medium), the present invention boldly attempts to remove the medium to cause the function enhancement of the present invention, mainly because the medium is in actual manufacturing, its three-dimensional structure cannot be flat, the material properties are not uniform, and The lack of degradation of material properties makes the frequency response distortion of the entire sensor more difficult and difficult to predict, so the medium is removed, not only the components are less, the structure is relatively simple, the manufacturing is much simpler, the variation is more, and the sensor can be improved. Quality and progressive.

Hereinafter, the laryngeal sensor A is applied to a communication hands-free device B (or other communication device, such as a walkie-talkie device) for forming a voice signal when receiving a user's speech.

The laryngeal sensor A is combined with the first specific application embodiment of the communication hands-free device B (as shown in the sixth to eighth figures), wherein the basic composition of the laryngeal sensor A is the same as the above. Therefore, the box body 1 at this time is suitable for forming the housing of the communication hands-free device B, and the box body 1 is further provided with a sound source output hole 13 and at least one function key 14 (as shown in the sixth figure, In the middle of the two function keys as an example, the function key 14 can be soft rubber and fixed to the box body 1, in addition, the communication hands-free device B further comprises a control circuit board 5, a sound amplification device 6 and a battery unit 7; among them:

The control circuit board 5 is disposed inside the box body 1 and located below the copper piece 3. The control circuit board 5 is used for receiving or transmitting the sound source signal and wirelessly. Connected to an external communication device (such as a mobile phone), and the control circuit board 5 is electrically connected to the sound source output hole 13 and the function key 14, wherein the control circuit board 5 is provided with an electrical hole holder 51 and at least one functional operation portion 52 ( In the figure, the function of the operating portion is two, the electric socket 51 has a joint 511 which is outwardly transmitted out of the sound source output hole 13 of the cartridge body 1 (as shown in the eighth figure), and the function operating portion 52 corresponds to the function key 14, so that the function operating portion 52 corresponds to the function key 14. The function operating portion 52 is touched by pressing the function key 14 (as in the seventh drawing). In addition, the laryngeal sensor A can be combined with an air-conducting microphone 8 and can be alternatively implemented, and the air-conducting microphone 8 is directly disposed on the control circuit board 5, and the throat-sensing sensor A is amplified. The circuit 4 is also disposed on the control circuit board 5.

The sound reinforcement device 6 can be a speaker or an earphone, and is disposed outside the casing body 1. The sound amplification device 6 is connected to the sound source output hole 13 of the casing body 1 by wires 61 and 62, and is electrically connected to the control circuit board. 5. The sound amplification device 6 is configured to receive the voice signal transmitted by the control circuit board 5 as a receiving end.

The battery unit 7 is disposed inside the casing body 1 and located under the control circuit board 5 and electrically connected to the control circuit board 5. The battery unit 7 can be a rechargeable battery and can pass through the sound source output hole 13 . Charge it.

The component is formed by using the laryngeal sensor A to receive the voice signal when the user speaks, and the sound amplification device 6 receives the voice signal transmitted by the control circuit board 5 to receive the message, thereby forming a communication hands-free device B. And the laryngeal sensor A can improve the sound collection effect, so that the wearer is affected by the wind cut sound due to the fast moving speed, and does not cause the unrecognizable voice signal. It can improve its performance.

Moreover, in order to enable the wearer to combine the communication hands-free device B, a binding element 9 for coupling to the wearer is disposed outside the box body 1 of the communication hands-free device B, which may be a devil felt (such as the ninth Figure), or a kit made of soft silicone (such as the tenth figure), or other equivalent components; wherein, as shown in the tenth figure, the kit made of the silicone is provided with at least two through holes 91, The belt C of the wearer's helmet is pierced.

Furthermore, the laryngeal sensor A is coupled to a second specific application embodiment of another communication hands-free device B' (as shown in FIG. 11), and the communication hands-free device B' includes a control box 10 a control circuit board 5, a laryngeal sensor A, a sound amplifying device 6 and a battery unit 7; wherein the basic composition of the laryngeal sensor A is the same as that described in the first figure, This is not described again, and is separated from the body of the communication hands-free device B', but is electrically connected therebetween; wherein:

The control box 10 is a housing constituting the communication hands-free device B', and has a hollow interior, and the control box 10 is provided with a sound source output hole 13' and at least one function key 14' (as shown in the eleventh figure, in the figure The function key is an example), and the function key 14' can be fixed to the control box 1 by soft rubber.

The control circuit board 5 is disposed inside the control box 10, and the control circuit board 5 is configured to receive or transmit the sound source signal and wirelessly connect to an external communication device (such as a mobile phone), and the control circuit board 5 is electrically connected to the sound source output hole. 13' and the function key 14', wherein the control circuit board 5 is provided with an electric hole base 51 and at least one functional operation part 52 (as shown in the eleventh figure, in the figure, a functional operation part), the electric hole base 51 has a joint 511 outward The sound source output hole 13' of the control box 10 is exposed, and the function operating portion 52 corresponds to the function key 14', so that the function operating portion 52 is activated by pressing the function key 14'. In addition, the amplification circuit 4 of the laryngeal sensor A is disposed on the control circuit board 5.

The sound reinforcement device 6 can be a speaker or an earphone, and is disposed outside the control box 10. The sound reinforcement device 6 is connected to the sound source output hole 13' of the control box 10 by a wire 61 and a terminal 62, and is electrically connected to the control circuit. The board 5 and the sound amplifying device 6 are configured to receive the voice signal transmitted by the control circuit board 5 as a receiving end.

The battery unit 7 is disposed inside the control box 10, is located below the control circuit board 5, and is electrically connected to the control circuit board 5. The battery unit 7 can be a rechargeable battery and can pass through the sound source output hole 13'. Can be charged.

The component is formed by using the laryngeal sensor A to receive the voice signal when the user speaks, and the sound amplification device 6 receives the voice signal transmitted by the control circuit board 5 to receive the message, thereby forming a communication hands-free device. The implementation of B', and the laryngeal sensor A can improve the sound collection effect, so that the wearer is affected by the wind cut sound due to the fast moving speed, and the voice signal is not recognized, but the performance can be improved. .

Moreover, in order to enable the wearer to combine the communication hands-free device B', a binding element 9 for coupling to the wearer is also disposed outside the control box 10 of the communication hands-free device B', which may be a devil felt ( Such as the twelfth figure), or a kit made of soft silicone (such as the thirteenth figure), or other equivalent components, wherein the kit made of the silicone rubber is provided with at least two through holes 91, The belt C of the wearer's helmet is pierced (as shown in Figure 13).

Furthermore, in the communication hands-free devices B and B' of the above two specific embodiments, the control circuit board 5 is wirelessly connected to the external communication device, and the implementation may be one-to-one or one. Too many connection modes.

According to the above composition, it can be seen that the present invention has been improved for the conventional laryngeal sensor A, and the ceramic piece 2 is directly attached to the inner wall of the sensing end of the casing body 1, and the foaming is no longer used. The medium of the cotton body or the spring not only reduces the volume and thickness of the laryngeal sensor A, but also causes the vibration of the sound to pass through the box body 1 and directly enters the ceramic piece 2, thereby improving the sensitivity of the sound collection; The laryngeal sensor A is combined with the structure of the communication hands-free device B, B' for use as a voice communication hands-free device, which can improve the radio sensitivity and enhance its performance. The enhancement of these functions is the creative essence of the present invention.

In summary, it is known that the novel structure of the present invention has industrial applicability, novelty and advancement, and conforms to the invention patent requirements. The above is only the preferred embodiment of the invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention.

A‧‧‧throat sensor

B, B'‧‧‧ communication hands-free device

C‧‧‧Band

1‧‧‧ box body

11‧‧‧External wall

12‧‧‧planar space

13, 13'‧‧‧ audio source output hole

14, 14'‧‧‧ function keys

2‧‧‧Ceramic pieces

21‧‧‧ positive wire

3‧‧‧copper

31‧‧‧Negative wire

4‧‧‧Amplification circuit

5‧‧‧Control circuit board

51‧‧‧Electrical hole seat

511‧‧‧ connector

52‧‧‧Functional Operations Department

6‧‧‧Amplifier

61‧‧‧ wire

62‧‧‧ terminals

7‧‧‧ battery unit

8‧‧‧Air-conducting microphone

9‧‧‧Combined components

91‧‧‧With holes

10‧‧‧Control box

The first figure is a frequency response diagram of a laryngeal microphone that typically has a foamed body.

The second diagram is a frequency response diagram of a throated microphone that typically has a spring.

The third figure is a three-dimensional structural decomposition of the laryngeal sensor of the present invention. Figure.

The fourth figure is a cross-sectional reference view of the combined structure of the third figure.

Fourth-A is a cross-sectional view of another combined embodiment of the laryngeal sensor of the present invention.

The fifth figure is a frequency response diagram of the laryngeal sensor of the present invention.

Figure 6 is a perspective exploded view of the first embodiment of the communication hands-free device of the present invention.

The seventh figure is a three-dimensional combination structure diagram of the sixth figure.

The eighth drawing is a cross-sectional view of the structure of the seventh figure.

Figure 9 is a first perspective view of a seventh embodiment with a bonding element.

Figure 11 is a diagram showing a second perspective embodiment in which the seventh element is provided with a bonding element.

Figure 11 is a plan view showing the second embodiment of the communication hands-free device of the present invention.

Figure 12 is a first plan view showing an embodiment of a bonding element.

Figure 13 is a diagram showing an embodiment of a second plane in which the bonding elements are provided in the eleventh drawing.

A‧‧‧throat sensor

B‧‧‧ Communication hands-free device

1‧‧‧ box body

11‧‧‧External wall

12‧‧‧planar space

13‧‧‧Source output hole

14‧‧‧ function keys

2‧‧‧Ceramic pieces

21‧‧‧ positive wire

3‧‧‧copper

31‧‧‧Negative wire

4‧‧‧Amplification circuit

5‧‧‧Control circuit board

51‧‧‧Electrical hole seat

511‧‧‧ connector

52‧‧‧Functional Operations Department

6‧‧‧Amplifier

61‧‧‧ wire

62‧‧‧ terminals

7‧‧‧ battery unit

8‧‧‧Air-conducting microphone

Claims (23)

A laryngeal sensor includes: a box body having a hollow interior; an outer end portion being an outer wall portion; and a planar space disposed on an inner side surface of the outer wall portion; a ceramic sheet disposed on the box body The inner side of the ceramic piece is attached to the plane space, and the ceramic piece is linearly connected to a positive electric wire; a copper piece is disposed inside the box body and is attached to the other side of the ceramic piece. And the copper piece is linearly connected to a negative wire; and an amplifying circuit is provided to electrically connect the positive wire of the ceramic piece and the negative wire of the copper piece. The laryngeal sensor of claim 1, wherein the amplifying circuit is disposed outside or inside the casing body. A communication hands-free device, comprising: a laryngeal sensor according to claim 1 for receiving a voice signal when a user speaks, wherein the box body is further provided with a sound source output The hole is provided with at least one function key; and the communication hands-free device further comprises: a control circuit board disposed inside the box body, the control circuit board is configured to receive or transmit the sound source signal and wirelessly connect to the outside a communication device, wherein the control circuit board is connected to the sound source output hole and the function key, and an amplification circuit of the throat sensor is disposed on the control circuit board; a sound amplification device is electrically connected to the control a circuit board, and the sound amplification device is configured to receive the voice signal transmitted by the control circuit board as a receiving end; and a battery unit is disposed inside the box body and is electrically connected to the control unit The board is electrically connected. The communication hands-free device according to claim 3, wherein the laryngeal sensor is additionally implemented with an air-conducting microphone. The communication hands-free device of claim 4, wherein the air-conducting microphone is disposed on the control circuit board. The communication hands-free device of claim 3, wherein the sound amplification device is disposed outside the casing body and connected to the sound source output hole of the casing body by wires and terminals. The communication hands-free device according to claim 6, wherein the sound amplification device is a speaker or an earphone. The communication hands-free device according to claim 3, wherein the battery unit is a rechargeable battery and is charged through the sound source output hole. The communication hands-free device of claim 3, wherein the control circuit board is provided with an electrical hole holder having a connector, and the connector protrudes outwardly from the sound source output hole of the box body. The communication hands-free device of claim 3, wherein the control circuit board is provided with at least one function operating portion corresponding to a function key of the box body, and is activated by pressing a function key of the box body Functional operation department. The communication hands-free device of claim 3, wherein the outer side of the box body is provided with a coupling element for bonding to the wearer. The communication hands-free device of claim 11, wherein the bonding element is a devil felt. The communication hands-free device of claim 11, wherein the bonding component is a kit made of soft silicone, and the kit is provided with at least two through holes. A communication hands-free device, comprising: a control box, the interior is hollow, the control box is provided with an audio source output hole, and at least one function key is provided; a control circuit board is disposed inside the control box, and The control circuit board is configured to receive or transmit a sound source signal and wirelessly connect to an external communication device, and the control circuit board is connected to the sound source output hole and the function key; a throat shock sensor includes a box body, a ceramic sheet, a copper sheet and an amplifying circuit, the inside of the box body is hollow, the outer end is an outer wall portion, and a flat space is provided on an inner side surface of the outer wall portion, and the ceramic sheet is disposed in the box An inner side of the body, and one side of the ceramic piece is attached to the plane space, and the ceramic piece is linearly connected to a positive electric wire, and the copper piece is disposed inside the box body and is attached to the other side of the ceramic piece And the copper piece is linearly connected to a negative electric wire, the amplifying circuit is electrically connected to the positive electric wire of the ceramic piece and the negative electric wire of the copper piece, and the amplifying circuit is electrically connected to the control circuit board; The sound device is electrically connected to the control circuit board, and the sound amplification device is configured to receive the voice signal transmitted by the control circuit board as a receiving end; and a battery unit is disposed inside the control box, and With the control The board is electrically connected. The communication hands-free device of claim 14, wherein the laryngeal sensor is disposed outside the control box, and the amplifying circuit is directly disposed on the control circuit board. The communication hands-free device of claim 14, wherein the sound amplification device is disposed outside the control box, and is connected to the sound source output hole of the control box by a wire and a terminal. The communication hands-free device according to claim 16, wherein the sound amplification device is a speaker or an earphone. The communication hands-free device according to claim 14, wherein the battery unit is a rechargeable battery and is charged through the sound source output hole. The communication hands-free device of claim 14, wherein the control circuit board is provided with an electrical hole holder having a connector, and the connector protrudes outwardly from the sound source output hole of the control box. The communication hands-free device of claim 14, wherein the control circuit board is provided with at least one function operation portion corresponding to a function key of the control box, and is activated by pressing a function key of the control box Functional operation department. The communication hands-free device of claim 14, wherein an outer side of the control box is provided with a coupling member for coupling to the wearer. The communication hands-free device of claim 21, wherein the bonding component is a devil felt. The communication hands-free device of claim 21, wherein the bonding component is a kit made of soft silicone, and the kit is provided with at least two through holes.