An automatically adjusted pressure bone conduction audio transmission device

Abstract

The application relates to the technical field of audio transmission, in particular to a bone conduction audio transmission device capable of automatically adjusting pressure, which comprises a connecting main body and ear hanging parts connected to two ends of the connecting main body, a bone conduction earphone is arranged at the free end of each ear hanging part, the bone conduction earphone comprises a bone conduction vibrator module and a plurality of sensing pieces, the sensing pieces are arranged on the side of the bone conduction earphone close to human skin; a control module and an expansion module for driving the connecting main body to be opened or tightened are arranged in the connecting main body, the sensing pieces are connected with the control module, and the control module is drivingly connected with the expansion module. The application has a novel structure, the control module calculates and judges the size of pressure to drive the working state of the expansion module, the opening or tightening of the connecting main body is controlled through the expansion module, and then the pressure of the bone conduction earphones at two ends of the connecting main body on the human cheekbones is controlled, so that the phenomenon of dizziness of the head after long-time wearing is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of audio transmission, in particular to a bone conduction audio transmission device capable of automatically adjusting pressure. BACKGROUND

[0002] Traditional earplug earphones are generally attached to the ear hole or directly inserted into the entrance of the ear canal. The micro speaker of the earphone generates sound waves, which are transmitted to the eardrum through the air, and finally transmitted to the brain. The above-mentioned earplug earphones need to be attached to the ear hole or directly inserted into the entrance of the ear canal, which not only causes discomfort, but also may cause danger (such as when crossing the road) because the entrance of the ear canal is blocked and the sound from the outside cannot be heard. In addition, if the above-mentioned earplug earphones are used for a long time at a high volume, it will affect the eardrum, such as tinnitus, and in severe cases, it will cause hearing loss.

[0003] Bone conduction is a sound transmission method, which converts sound into mechanical vibration of different frequencies, and transmits sound waves through the skull, bone labyrinth, inner ear lymph fluid, cochlea, auditory nerve, and auditory center. Compared with the classic sound conduction method of generating sound waves through a diaphragm, bone conduction eliminates many steps of sound wave transmission, can achieve clear sound restoration in a noisy environment, and sound waves will not affect others because they spread in the air.

[0004] However, the current bone conduction earphone cannot control the clamping force on the user's cheekbone. If the clamping force is too large, the user will feel dizzy after wearing it for a long time, and the comfort is poor. SUMMARY

[0005] The present application provides a bone conduction audio transmission device capable of automatically adjusting pressure, which has a novel structure and a clever design. The vibrator of the bone conduction vibrator module is attached to the cheekbone, and the sensing element located at the edge of the vibrator and the cheek attachment detects the pressure between the vibrator and the cheekbone. The signal is transmitted to the control module, which calculates the pressure and determines the working state of the telescopic module to control the opening or tightening of the connecting body, thereby controlling the pressure of the bone conduction earphone on the cheekbone at both ends of the connecting body, and solving the problem of dizziness after wearing it for a long time.

[0006] In order to solve the above technical problems, the present application adopts the following technical solutions:

[0007] The application provides an automatic pressure adjustment bone conduction audio transmission device, which comprises a connecting body and ear hanging parts connected to two ends of the connecting body, a bone conduction earphone is arranged at the free end of each ear hanging part, the bone conduction earphone comprises a bone conduction vibrator module and a plurality of sensing elements, the sensing elements are arranged on the side of the bone conduction earphone close to the human skin, a control module and an extension module for driving the connecting body to open or tighten are arranged in the connecting body, the sensing elements are connected with the control module, and the control module is drivingly connected with the extension module.

[0008] The sensing element is a pressure sensor.

[0009] The bone conduction vibrator module comprises a bone conduction vibrator body, and the sensing detection plane of the sensing element coincides with the conduction plane of the bone conduction vibrator body.

[0010] The control module comprises a driving assembly arranged in the middle of the connecting body, the extension module comprises two movable pushers, the two movable pushers are movably arranged in the connecting body and located at two ends of the driving assembly respectively, and the driving assembly is used for driving the movable pushers to move close to or away from each other.

[0011] The two ends of the driving assembly are provided with limiting portions, the limiting portions are provided with limiting grooves, one end of the movable pusher close to the driving assembly is provided with a limiting strip, the limiting strip is slidingly arranged in the limiting groove, one end of the limiting groove away from the driving assembly is provided with a limiting block, and one end of the limiting strip close to the driving assembly is provided with a limiting top block matched with the limiting block.

[0012] The driving assembly comprises two micro electric cylinders arranged opposite to each other.

[0013] The connecting body is made of a material capable of being deformed and shaped.

[0014] The side of the bone conduction earphone close to the human skin is provided with a containing hole, the inner wall of the containing hole is provided with a plurality of elastic convex bodies, the sensing element is arranged in the containing hole, the elastic convex bodies are matched with the outer wall of the sensing element, the bottom wall of the containing hole is provided with a conductive metal sheet, and the sensing element is connected with the conductive metal sheet.

[0015] The bottom of the sensing element is provided with a connecting terminal, the conductive metal sheet is recessed to form an electricity connection hole matched with the connecting terminal, and the connecting terminal is inserted into the electricity connection hole.

[0016] The application has the following beneficial effects:

[0017] The application has novel structure and ingenious design, the vibrator of the bone conduction vibrator module is attached to the cheekbone, the sensing piece at the edge of the vibrator and the attached part of the cheek detects the pressure between the vibrator and the cheekbone, the signal is transmitted to the control module, the control module calculates and judges the pressure to drive the working state of the telescopic module, the stretching or tightening of the connecting body is controlled through the telescopic module, and then the pressure of the bone conduction earphone at both ends of the connecting body on the cheekbone is controlled, and the phenomenon of dizziness after long-time wearing is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure diagram of a bone conduction audio transmission device for automatically adjusting pressure worn on the ear of a user.

[0019] Figure 2 Another perspective structure diagram of a bone conduction audio transmission device for automatically adjusting pressure worn on the ear of a user.

[0020] Figure 3 An internal structure diagram of a connecting body.

[0021] Figure 4 An internal structure diagram of a connecting body. Figure 3 An enlarged view of A in FIG.

[0022] Figure 5 An internal structure diagram of a connecting body.

[0023] Figure 6 A structure diagram of a sensing piece.

[0024] In Figures 1 to 6 the drawings, the reference signs include:

[0025] 1 - connecting body 2 - ear hanging part 3 - bone conduction earphone

[0026] 4 - sensing piece 5 - bone conduction vibrator body 6 - movable pushing piece

[0027] 7 - limiting part 8 - limiting groove 9 - limiting strip

[0028] 10 - limiting block 11 - limiting top block 12 - micro electric cylinder

[0029] 13 - accommodating hole 14 - elastic convex body 15 - conductive metal sheet

[0030] 16 - connecting terminal 17 - electricity receiving hole 18 - inclined groove. DETAILED DESCRIPTION

[0031] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0032] A bone conduction audio transmission device that automatically adjusts pressure, such as Figures 1 to 6 As shown, it includes a connecting body 1 and ear hooks 2 connected to both ends of the connecting body 1. The free end of each ear hook 2 is equipped with a bone conduction earphone 3. The bone conduction earphone 3 includes a bone conduction vibrator module and several sensors 4, wherein the sensors 4 are pressure sensors and are installed on the side of the bone conduction earphone 3 close to the human skin; the connecting body 1 is provided with a control module and a telescopic module for driving the connecting body 1 to open or tighten, the sensor 4 is connected to the control module, and the control module is drivingly connected to the telescopic module.

[0033] Specifically, the embodiment of the present invention has a novel structure and an ingenious design, wherein the connecting body 1 can be U-shaped, and the connecting body 1 serves as the neck-hanging part of the audio transmission device or the headset; the vibrator of the bone conduction vibrator module fits against the cheekbone of the face, and the sensor 4 located on the edge of the vibrator and the cheek fit detects the pressure between the vibrator and the cheekbone of the face, and the signal is transmitted to the control module. The control module calculates and determines the pressure to drive the working state of the telescopic module. The telescopic module can control the opening or tightening of the connecting body 1, and then control the pressure of the bone conduction headphones 3 at both ends of the connecting body 1 to clamp the cheekbones of the person, thereby solving the problem of dizziness caused by wearing the head for a long time.

[0034] Wherein, the pressure sensor can be provided in plurality according to actual needs and detection accuracy.

[0035] In the bone conduction audio transmission device with automatic pressure adjustment described in this embodiment, the bone conduction vibrator module includes a bone conduction vibrator body 5 , and the sensing detection plane of the sensor 4 coincides with the conducting plane of the bone conduction vibrator body 5 .

[0036] The automatic pressure adjusting bone conduction audio transmission device disclosed in the embodiment, the control module includes a driving assembly arranged in the middle of the connecting body 1, the telescopic module includes two movable pushers 6, the two movable pushers 6 are movably arranged in the connecting body 1 and are located at the two ends of the driving assembly respectively, and the driving assembly is used for driving the movable pushers 6 to move close to each other or move away from each other. Further, the control module further includes a printed circuit board, the printed circuit board has a main control circuit and a Bluetooth module, the main control circuit is electrically connected to the driving assembly, the Bluetooth module is electrically connected to the main control circuit, the Bluetooth module is convenient for signal connection with a smart terminal, and the main control circuit is electrically connected to the bone conduction earphone 3. When the pressure sensor detects that the pressure between the bone conduction earphone 3 and the cheekbone of the face is greater than a preset pressure value, the central processing unit of the main control circuit sends a signal to start the driving assembly, drives the movable pusher 6 to move outward, so that the connecting body 1 moves outward and expands, and the pressure between the bone conduction vibrator module and the cheekbone of the face is reduced. When the pressure reaches the preset value, the central processing unit sends a signal, the driving assembly stops working and keeps the current state. When the pressure sensor detects that the pressure between the bone conduction earphone 3 and the cheekbone of the face is less than a preset pressure value, the central processing unit sends a signal to start the driving assembly, the driving assembly pulls the movable pusher 6 inward, the neck hanging part of the earphone, that is, the connecting body 1, is tightened, so that the pressure between the bone conduction vibrator module and the cheekbone of the face is increased, and the adhesion degree of the vibrator of the bone conduction vibrator module is increased. When the pressure reaches the preset value, the central processing unit sends a signal, the driving assembly stops working and keeps the current state.

[0037] The automatic pressure adjusting bone conduction audio transmission device disclosed in the embodiment, the two ends of the driving assembly are provided with limit portions 7, the limit portions 7 are provided with limit grooves 8, one end of the movable pusher 6 close to the driving assembly is provided with a limit strip 9, the limit strip 9 is slidably arranged in the limit groove 8, one end of the limit groove 8 away from the driving assembly is provided with a limit block 10, and one end of the limit strip 9 close to the driving assembly is provided with a limit top block 11 which cooperates with the limit block 10 to abut. Specifically, the above arrangement can limit the movement range of the limit strip 9, that is, the movement range of the movable pusher 6, so as to prevent the movable pusher 6 from moving excessively and causing damage to the connecting body 1, and the structure is reliable.

[0038] The automatic pressure adjusting bone conduction audio transmission device disclosed in the embodiment, the driving assembly includes two micro electric cylinders 12 which are arranged opposite to each other and face each other. Specifically, the above arrangement facilitates position adjustment of the two movable pushers 6 at the same time.

[0039] The automatic pressure adjusting bone conduction audio transmission device disclosed in the embodiment is characterized in that the connecting body 1 is made of a material capable of being deformed and shaped.

[0040] The automatic pressure adjusting bone conduction audio transmission device disclosed in the embodiment is characterized in that the bone conduction earphone 3 is provided with a receiving hole 13 on the side close to the human skin, the inner wall of the receiving hole 13 is provided with a plurality of elastic protrusions 14, the sensing member 4 is arranged in the receiving hole 13, the elastic protrusions 14 abut against the outer wall of the sensing member 4, the bottom wall of the receiving hole 13 is provided with a conductive metal sheet 15, and the sensing member 4 is connected with the conductive metal sheet 15.

[0041] The automatic pressure adjusting bone conduction audio transmission device disclosed in the embodiment is characterized in that the bottom of the sensing member 4 is provided with a connecting terminal 16, the conductive metal sheet 15 is recessed to form an electricity receiving hole 17 matched with the connecting terminal 16, and the connecting terminal 16 is inserted into the electricity receiving hole 17.

[0042] The upper end surface of the sensing member 4 is recessed to form a slanted groove 18, which facilitates the user to use the fingernail or a tool to take out the sensing member 4 from the receiving hole 13 for replacement.

[0043] The above description is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment within the scope of the present application are all within the scope of the present application.

Claims

1. A bone conduction audio transmission device capable of automatically adjusting pressure, comprising a connecting body and ear hanging parts connected to both ends of the connecting body, and a bone conduction earphone is arranged at the free end of each ear hanging part, characterized in that: The bone conduction earphone comprises a bone conduction vibrator module and a plurality of sensing members, and the sensing members are arranged on the side of the bone conduction earphone close to the human skin. The connecting body is provided with a control module and a telescopic module for driving the connecting body to open or tighten; The telescopic module comprises two movable push members which are respectively arranged in the connecting body and located at the two ends of the driving assembly, and the driving assembly is arranged in the middle of the connecting body. The two ends of the driving assembly are provided with limiting portions, the limiting portions are provided with limiting grooves, and the movable push members are provided with limiting strips which are arranged at one end close to the driving assembly and are slidably arranged in the limiting grooves. The side of the bone conduction earphone close to the human skin is provided with a receiving hole, the inner wall of the receiving hole is provided with a plurality of elastic convex bodies, the sensing members are arranged in the receiving hole and are fixed by the elastic convex bodies.

2. The self-adjusting pressure bone conduction audio transport of claim 1, wherein: The driving assembly comprises two micro electric cylinders which are arranged opposite to each other.

3. The self-adjusting pressure bone conduction audio transport device of claim 1, wherein: The end of the limiting groove away from the driving assembly is provided with a limiting block, and the end of the limiting strip close to the driving assembly is provided with a limiting top block matched with the limiting block.

4. The self-adjusting pressure bone conduction audio transport of claim 1, wherein: The connecting body is made of a material which can be deformed and shaped.

5. The self-adjusting pressure bone conduction audio transport of claim 1, wherein: The bottom wall of the receiving hole is provided with a conductive metal sheet, and the sensing member is connected with the conductive metal sheet.

6. The self-adjusting pressure bone conduction audio transport of claim 5, wherein: The bottom of the sensing member is provided with a connecting terminal, the conductive metal sheet is recessed to form an electric connection hole matched with the connecting terminal, and the connecting terminal is inserted into the electric connection hole.

7. The self-adjusting pressure bone conduction audio transport of claim 1, wherein: The sensing member is a pressure sensor.

8. The self-adjusting pressure bone conduction audio transport of claim 1, wherein: The bone conduction vibrator module comprises a bone conduction vibrator body, and the sensing detection plane of the sensing member coincides with the conduction plane of the bone conduction vibrator body.

9. The self-adjusting pressure bone conduction audio transport of claim 1, wherein: The upper end surface of the sensing member is recessed to form an inclined groove.

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