KR102096847B1 - Mount module structure of bone conduction earphone having sound leakage prevention - Google Patents

Abstract

The present invention relates to a mount structure applicable to a bone conduction earphone which may increase usability and satisfaction of a user by increasing vibration response transferred to a body of the user and reducing vibration response transferred to a structure. A configuration according to an embodiment of the present invention includes a vibration actuator including one side disposed at a bone direction of a user and an opposite side disposed at a direction of a structure to generate vibration according to an external input signal to transfer the vibration to the bone; a flexible cover to surround another side of the vibration actuator and to have flexibility; and a pressurized auxiliary body including one end protruding from the flexible cover to the direction of the bone and to be inserted into the inside of the flexible cover. The pressurized auxiliary body includes: an insertion button protruding to the direction of the bone to be inserted in an inside of the flexible cover; a press button connected to the insertion button to press one side of the flexible cover from the structure to the direction of the bone when the insertion button is inserted into an inside of the flexible cover from the bone to a direction of the structure; and a guide having predetermined curvature by connecting the insertion button with the press button and to guide a press direction of the press button from the structure to the direction of the bone when the insertion button is inserted.

Description

Pressurized bone conduction mount structure with anti-leakage function {MOUNT MODULE STRUCTURE OF BONE CONDUCTION EARPHONE HAVING SOUND LEAKAGE PREVENTION}

The present invention relates to a pressurized bone conduction mount structure having a leak prevention function, and more specifically, in vibration generated from an actuator, vibration transmitted to a user's bone portion is amplified and vibration transmitted to a structure is reduced to reduce external leakage. It relates to a pressurized bone conduction mount structure to prevent.

Bone conduction means that sound is conducted through the skull bones, and sound transmission through bone conduction can be used by both the general and hearing impaired. Starting from the principle of hearing aids in the past, the development of products such as earphones has been actively developed. Is becoming.

The sound transmission method using the bone conduction is implemented by transmitting vibration to the eardrum using the human bone as a medium through an actuator that implements a specific pattern of vibration according to the input signal, and transmits vibration in any direction around the human ear. Since this is possible, there is an advantage that the utilization is high and the attachment position of the bone is relatively free.

The actuator used for bone conduction usually has a uniaxial vibration characteristic, and causes the same vibration in the opposite direction as well as in the bone portion to cause vibration.

Vibration generated in the opposite direction is transmitted to a structure such as glasses through a support portion supporting the actuator, and vibration transmitted to the structure generates a vibration or a leakage of an acoustic signal through the vibration to the outside.

In the earphones using bone conduction, this leakage causes discomfort to surrounding people in a specific place that requires quietness, and at the same time, it is difficult to maintain privacy by leaking sound information that the user hears outside the specific place. have. In addition, the problem of the wearing feeling itself as the actuator vibrates the structure cannot be overlooked.

Republic of Korea Patent Publication No. 10-2017-0061188 discloses a method for suppressing the leakage of the bone conduction speaker and a bone conduction speaker. In the disclosed patent, at least one sound transmission hole is formed in a housing that accommodates the diaphragm to cause vibration of the housing, and at the same time, sound waves inside the housing are sent out through the sound transmission hole, and interference is caused by separate sound waves and interference is suppressed. The contents to be described are described.

However, in order to prevent leakage, it is difficult to implement accurate offset interference according to a vibration pattern reflecting various sound sources from a structure causing offset interference, as well as to generate a separate sonic wave, which has a disadvantage in that the structure is complicated and energy efficiency is low.

In addition, the Republic of Korea Patent No. 10-1603983 discloses a bone conduction output device, wherein the registered patent protrudes from the case and transmits vibration through a separate bone conduction body that contacts the body, between the magnetic circuit and the bullet body, and Disclosed is a structure in which a space is provided between the elastic body and the bone conduction body to exclude interference from adjacent components during vibration of the elastic body so that the bone conduction output is not distributed through the case.

However, in the case of the registered patent, the vibration of the magnetic circuit is transmitted as it is to the structure for supporting the elastic body and the magnetic circuit, and there is a disadvantage that the anti-leak effect cannot be large.

In the mount structure that absorbs vibration or shock of the actuator, it is required to develop a bone conduction mount structure that prevents leakage by increasing the output by increasing the vibration transmitted in the user's bone direction and reducing the vibration transmitted to the structure. .

(Document 0001) Republic of Korea Patent Publication No. 10-2017-0061188 (published date: 17.06.02.) (Document 0002) Republic of Korea Patent Registration No. 10-1603983 (Registration date: 16.03.10.)

An object of the present invention invented in view of the above is to provide a bone conduction earphone mount structure in which sound transmission is excellent by increasing vibration transmitted to the user's body and reducing vibration transmitted to the structure, while reducing external leakage. Is to do.

The pressure-type bone conduction mount structure having a leak prevention function according to the present invention for achieving the above object is arranged on one side in the direction of the user's bone and the other side in the direction of the structure, and generates vibration according to an external input signal to vibrate the bone It includes a vibration actuator that transmits, the elastic cover is provided to surround the other side of the vibration actuator and the elastic cover and one end protruding from the stretch cover in the bone direction, and includes a pressure auxiliary body that can be inserted into the inside of the stretch cover.

In addition, the pressure assisting body protrudes in the direction of the bone, and is connected to the insertion button and the insertion button which can be inserted into the elastic cover by an external load, and the insertion button is inserted into the elastic cover in the direction of the structure from the bone by the external load As it becomes possible, the guide button guides the pressing direction of the pressing button from the structure to the bone direction by connecting the pressing button and the inserting button and the pressing button to press one side of the elastic cover from the structure to the bone direction. It may include.

In addition, the pressure auxiliary body, the guide and the pressing button are provided inside the telescopic cover, the pressing button may be disposed closer to the bone than the guide.

In addition, the pressure auxiliary body, the insertion button is provided to penetrate through the stretch cover, the guide is disposed in the direction of the structure on the outside of the stretch cover, the push button can press the outer surface of the stretch cover in the bone direction.

In addition, the elastic cover includes a support portion for supporting the vibration actuator in an inserted state, a compression portion compressed by pressure of a pressing button, and a tension portion generated by compression of a pressing button and tensile strength generated by pressing of a pressing button. You can.

In addition, it may further include a piezoelectric element coupled to the expansion and contraction cover for converting the pressure according to the external load into electrical energy and an energy storage unit for storing the electrical energy converted by the piezoelectric element.

Further, the piezoelectric element may be provided in the compression unit.

In addition, it is provided between the stretch cover and the structure may further include a plate spring that buffers the force transmitted to the structure through the stretch cover.

In addition, the plate spring includes a first support connected to the elastic cover, a second support connected to the structure and spaced apart from the first support by a predetermined distance, and a connection connecting the first support and the second support to each other, and external load It can be tensioned during the action.

According to an embodiment of the present invention, the vibration response can be increased by pushing the vibration actuator in the direction of the user's bone, and the vibration transmission efficiency can be increased by the stiffness of the pressing portion.

In addition, since the sound stiffness is applied by the elasticity of the elastic cover, it is possible to prevent the leakage by lowering the vibration transmission rate in the direction of the structure.

In addition, it is possible to increase energy efficiency through a piezoelectric element.

In addition, it is possible to further increase leakage prevention through the leaf spring structure.

1 to 3 is a conceptual diagram showing a bone conduction mount structure according to an embodiment of the present invention.
4 is a detailed view showing a pressure auxiliary body according to an embodiment of the present invention.
5 is a conceptual diagram showing vibration transmission to a structure according to stiffness according to an embodiment of the present invention.
6 is a schematic diagram showing a piezoelectric element according to an embodiment of the present invention.
7 is a flow chart showing the use of energy using a piezoelectric element according to an embodiment of the present invention.
8 is a schematic view showing a leaf spring according to an embodiment of the present invention.

In the description of the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

The embodiments according to the concept of the present invention may be modified in various ways and have various forms, and thus, specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention to a specific disclosure form, and it should be understood that it includes all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

The terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the "inclusive" or "gajida" and the terms are staking the features, numbers, steps, operations, elements, parts or geotyiji to be a combination thereof specify the presence, of one or more other features, integers It should be understood that it does not preclude the presence or addition possibilities of, steps, actions, components, parts or combinations thereof.

Hereinafter, the present invention will be described in detail.

The bone conduction mount structure disclosed in the present invention can be applied to various devices that identify sound signals by transmitting vibration energy to a user's body, such as a bone conduction earphone or a bone conduction hearing aid.

1 to 3 is a conceptual diagram showing a bone conduction mount structure according to an embodiment of the present invention.

1 to 3, the pressurized bone conduction mount structure having a leak prevention function according to an embodiment of the present invention has one side disposed in the direction of the user's bone B and the other side in the direction of the structure G The vibration actuator 100 that transmits vibration to the bone B by generating vibration according to an external input signal, is provided to surround the other side of the vibration actuator 100, and has a stretchable cover 200 having elasticity and one end It includes a pressing auxiliary body 500 protruding from the telescopic cover 200 in the direction of the bone B and insertable into the telescopic cover 200.

The vibration actuator 100 of the present invention is a type of device that vibrates according to an external input signal, converts an electrical signal into mechanical vibration, and transmits it to a user's bone (B) (bone).

Specifically, the vibration actuator 100 may include a magnet whose magnetic flux varies according to a change in current of a coil supplied with electric current from the outside, and may be composed of a magnetic circuit including the magnet. The magnetic circuit may further include a yoke, which is a path through which the magnetic force line of the magnet passes, and a top plate for focusing magnetic force. In this case, the coil may be provided inside or outside the vibration actuator 100.

One side of the vibration actuator 100 is disposed in the direction of the user's bone B, and the other side is disposed in the direction of the structure G. Here, the structure (G) encompasses the concept of the case surrounding the outer side of the vibration actuator 100 and the expansion and contraction cover 200 or a pair of glasses for fixing to the user's body, and the direction of the structure G is the user Means a direction other than the goal (B) direction. In addition, the user's bone B direction means the user's body receiving vibration energy through the vibration actuator 100. Hereinafter, for convenience of description in the present invention, the direction of the structure G will be described on the assumption that it is in the opposite direction to the direction of the user's bone B. The vibration actuator 100 transmits vibration to the user's bone B while directly or indirectly contacting the user's bone B.

The expansion cover 200 of the present invention wraps a portion of the outside of the vibration actuator 100 to protect it from external impact while supporting the vibration actuator 100. The elastic cover 200 is formed of a material such as silicone, and may have elasticity and elasticity at the same time, and a part or all of the vibration actuator 100 is inserted into one side. It is preferable that one side in which the vibration actuator 100 is inserted in the elastic cover 200 is a user's bone B direction, and the vibration actuator 100 is inserted into the elastic cover 200. It is more preferable that one side is exposed in the direction of the user's bone B, so that vibration generated in the vibration actuator 100 is easily transmitted to the user's bone B.

A separate damper for alleviating the transmission of vibration generated in the vibration actuator 100 may be provided inside or outside the expansion cover 200, and when provided outside the expansion cover 200, the damper may include an expansion cover ( 200) and the structure (G).

When an external load is applied, the elastic cover 200 increases the transmission of vibration in the direction of the user's bone B by acting with a positive stiffness in the direction of the user's bone B, whereas the structure G There is an effect of reducing the transmission of vibration to the structure (G) by acting in the direction of sound stiffness. The operating state of the telescopic cover 200 will be described later.

As shown in Figures 1 to 3, the pressure assisting body 500 of the present invention is an extension cover 200 from an external load applied when a user wears a bone conduction earphone, etc. to which the bone conduction mount structure of the present invention is applied. Press one side. The external load acts in the direction of the vibration actuator 100 in the direction of the user's bone B, and includes various types of loads in close contact with the bone B and the vibration actuator 100.

The pressing auxiliary body 500 protrudes in the direction of the bone B, and is connected to the insertion button 510 and the insertion button 510 which can be inserted into the telescopic cover 200 by an external load, and the As the insertion button 510 is inserted into the stretch cover 200 in the direction of the structure G from the bone B by an external load, one side of the stretch cover 200 is scored in the structure G The pressing button 530 having a predetermined curvature while connecting the pressing button 530 and the inserting button 510 and the pressing button 530 to press in the direction (B), according to the insertion of the inserting button 510 It includes a guide 520 for guiding the pressing direction of the structure (G) in the direction of the bone (B).

The insertion button 510 can be inserted into the inside of the expansion and contraction cover 200 by the external load, and one end has a structure protruding from the expansion and contraction cover 200. It is preferable that one end of the protruding insertion button 510 protrudes in the direction of the user's bone B.

Specifically, the insertion button 510 has a certain rigidity, and the protruding one end may directly or indirectly contact the user's bone B. When in contact with the user's bone B, the protruding one end moves in the direction of the structure G from the user's bone B, and the insertion button 510 is moved inside the telescopic cover 200.

The pressing button 530 is connected to the other end of the insertion button 510, the pressing button 530 and the insertion button 510 may be formed integrally, the external load acting on the insertion button 510 is a pressing button 530. It is preferable that a guide 520 is provided at a connection position between the insertion button 510 and the pressing button 530, and the position of the guide 520 is fixed.

1 to 3 (a) shows the state before the external load is applied, (b) shows the external load is in operation, the guide 520, the insert button 510 is a structure in the bone (B) ( In the direction of G) to induce the direction of the load applied when moving inside the telescopic cover 200, the insertion button 510 and the pressing button 530 connected to the guide 520 may have a U or J shape, In this case, the load in the direction of the structure G in the bone B acting on the insertion button 510 may act in the direction of the bone B in the structure G through the pressing button 530.

The pressing button 530 may press the expansion and contraction cover 200 while moving in a state in which the direction is switched as the insertion button 510 moves. In addition, as shown in FIG. 3, the pressing button 530 has a structure having elasticity such as a spring, is compressed as the insertion button 510 moves, and compresses the compression force by the compression to the elastic cover 200. The elastic cover 200 can be pressed by transferring.

As the load direction is changed by the guide 520, the pressing button 530 presses the expansion and contraction cover 200 in the direction of the bone B in the structure G, and in the position where the expansion and contraction cover 200 is pressed. Positive stiffness occurs, and a sound stiffness occurs outside the position pressed by the elasticity of the elastic cover 200. Here, the positive stiffness means that the stiffness increases, and the negative stiffness means that the stiffness decreases, and the positive stiffness and negative stiffness can be compared to the stiffness of the elastic cover 200 itself.

Since the expansion and contraction cover 200 is pressed in the direction of the bone B by the pressing button 530, the vibration actuator 100 is pushed up in the direction of the user's bone B and the vibration transmission effect is further increased by the stiffness. On the other hand, the vibration transmission effect transmitted to the structure G by the sound stiffness outside the pressurized position is reduced. In consideration of the vibration transmission effect, the position pressed by the pressing button 530 is preferably arranged to be adjacent to the vibration actuator 100.

When explaining an embodiment of the pressure auxiliary body 500, as shown in FIG. 1, the pressure auxiliary body 500 has the guide 520 and the pressure button 530 inside the telescopic cover 200 Is provided in, the pressing button 530 may be closer to the direction of the bone (B) than the guide 520. In this case, the guide 520 is fixed in the position inside the telescopic cover 200, and the pressing button 530 is disposed closer to the vibration actuator 100 than the insertion button 510 in the telescopic cover 200, , Press the elastic cover 200 in contact with the pressing button 530 by the external load transmitted through the insertion button 510 in the direction of the bone (B).

When explaining another embodiment of the pressure auxiliary body 500, as shown in FIG. 3, the pressure auxiliary body 500 is provided so that the insertion button 510 penetrates the telescopic cover 200, The guide 520 is disposed in the direction of the structure G on the outside of the expansion and contraction cover 200, and the pressing button 530 presses the outer surface of the expansion and contraction cover in the direction of the bone B. In this case, the guide 520 is fixed to the position from the outside of the expansion and contraction cover 200, the pressure button 530 is disposed adjacent to the vibration actuator 100 accommodated in the expansion and contraction cover 200, the vibration actuator 100 Is pressed in the bone (B) direction. When the vibration actuator 100 is positioned at the left and right centers of the telescopic cover 200, the press button 530 may be disposed closer to the left and right centers of the telescopic cover 200 than the insert button 510.

In addition to the above-described embodiment, various structures and configurations in which the pressing button 530 receiving the external load through the insertion button 510 presses the elastic cover 200 in the direction of the user's bone B may be applied.

In one embodiment of the present invention, the expansion and contraction cover 200 is compressed by the pressure of the support part 230 and the pressure button 530 supporting the vibration actuator 100 in an inserted state, and the compression part generating positive rigidity It includes a tension portion 220 is tensioned by the pressure of the pressing button 530 and 210 and the sound stiffness is generated.

4 is a detailed view showing a pressure auxiliary body 500 according to an embodiment of the present invention.

If the elastic cover 200 of the present invention is described in detail with reference to FIG. 4, the support 230 supports the vibration actuator 100, and is preferably located at the center of the elastic cover 200. The support part 230 is inserted into the elastic cover inwardly so that the vibration actuator 100 can be inserted, and the support part 230 is in contact with at least three surfaces of the vibration actuator 100 so that the vibration actuator 100 It is preferable to prevent departure, and the surface disposed in the direction of the user's bone B in the vibration actuator 100 is open, so that the vibration of the vibration actuator 100 can be smoothly transmitted to the user's bone B. desirable.

The compression unit 210 is pressed by the above-described pressing button 530 according to the external load acts as a positive stiffness, it is preferable that it is disposed adjacent to the support 230. That is, the pressing button 530 may be positioned closer to the support 230 when compared to the insertion button 510. The tension portion 220 is relatively sound stiffness is applied by the elasticity of the elastic cover 200 when the pressing button 530 is pressed, the tension portion 220 is a structure (G) compared to the compression portion 210 ).

Hereinafter, effects according to the present invention will be described through the following equation.

5 is a conceptual diagram showing vibration transmission to a structure G according to stiffness according to an embodiment of the present invention.

Referring to Figure 5 to describe the vibration response of the structure (G) according to the positive and negative stiffness of the telescopic cover 200, the vibration actuator 100 and the two degrees of freedom damping model of the telescopic cover 200 and the structure (G) (2-Degree-of-Freedom Damped Model) is considered, and the positive and negative stiffness of the elastic cover 200 acting according to the external load is KA, the negative stiffness is KN, the structure (G) is G, and the elastic cover is 200. The stiffness transmitted to the structure (G) is KG, the vibration response transmitted to the bone (B) is XA, the vibration response transmitted to the structure (G) is XG, and the damping value between the stretch cover (200) and the structure (G) is Speaking of CEQ, the rigidity KEQ of the expansion cover 200 can be represented by 2KN + KA, and the KEQ has a smaller value than KA. Considering the force equilibrium condition, the two degrees of freedom damping model follows Equations 1 and 2 below.

<Equation 1>

 <Equation 2>

When Laplace transform is performed in the above equation, Equation 1 may be expressed as Equation 3 and Equation 2 may be expressed as Equation 4.

<Equation 3>

<Equation 4>

 Using Equations 3 and 4, the vibration response (XG) in the structure (G) can be represented by Equation 5 below, and the magnitude of the vibration response (XG) is attenuation (CEQ) and stiffness in addition to the magnitude of the load ( KEQ).

<Equation 5>

Here, the magnitude of the load is dependent on the hardware performance of the vibration actuator 100 and, even in the case of attenuation values, depends on materials such as the elastic cover 200, but in the case of rigidity, the positive and negative stiffness of the elastic cover 200 is reflected. By reducing the equivalent rigidity KEQ, it can effectively act to reduce the vibration response (XG) of the structure (G).

In order to reduce the equivalent stiffness (KEQ), it is preferable that the vibration transmission of the elastic cover 200 and the structure G is transmitted in a negative stiffness condition.

In the present invention, considering the above points, the positive stiffness is generated by the pressure of the pressing button 530, pushing the vibration actuator 100 in the direction of the bone B, and the sound stiffness is caused by the elasticity of the elastic cover 200. There is an effect of preventing leakage by generating the size of the equivalent stiffness to be smaller.

6 is a schematic diagram showing a piezoelectric element 400 according to an embodiment of the present invention, and FIG. 7 is a flow chart showing energy use using the piezoelectric element 400 according to an embodiment of the present invention.

In one embodiment of the present invention, the piezoelectric element 400 is coupled to the telescopic cover 200 and converts the pressure according to the external load into electric energy, and an energy storage unit that stores electric energy converted by the piezoelectric element 400. It may further include.

6 and 7, the piezoelectric element 400 is a device that converts externally applied mechanical energy into electrical energy or externally applied electrical energy into mechanical energy, and lead zirconate titanate (PZT). Etc. can be used. The energy storage unit is electrically connected to the piezoelectric element 400 and is provided inside or outside the expansion and contraction cover 200 to store electric energy converted by the piezoelectric element 400.

The energy storage unit may supply electric energy stored in the vibration actuator 100 to assist energy consumption according to vibration or supply electric energy to a lamp provided in the structure G, etc., and supply electric current to the electric energy supply. A terminal board for distribution or a converter may be additionally provided and used.

In one embodiment of the present invention, the piezoelectric element 400 may be provided inside or attached to the outside of the expansion cover 200 in order to convert the pressure according to the vibration of the expansion cover 200 itself into electrical energy. In addition, it is possible to directly receive the vibration of the vibration actuator 100 in contact with the vibration actuator 100.

In order to increase energy efficiency, the piezoelectric element 400 may be provided in the compression unit 210. Since the compression unit 210 has positive stiffness, vibration transmitted to the piezoelectric element 400 can be transmitted more effectively, and energy generation efficiency can be increased.

8 is a schematic view showing a leaf spring 300 according to an embodiment of the present invention. 8 (a) and 8 (b), plate springs 300 having different shapes are illustrated, but the principles and effects described below are the same.

In one embodiment of the present invention is provided between the stretch cover 200 and the structure (G) and further comprises a leaf spring (300) buffering the force transmitted to the structure (G) through the stretch cover (200) It can contain.

The present invention provided with the plate spring 300 can further prevent leakage by cushioning the vibration generated from the vibration actuator 100 to the structure G due to the elasticity of the plate spring 300.

The plate spring 300 includes a first support 310 connected to the telescopic cover 200, a second support 330 connected to the structure G and spaced a predetermined distance from the first support 310, and And a connection body 320 connecting the first support body 310 and the second support body 330 to each other.

Specifically, the first support 310 receives the vibration generated from the vibration actuator 100 from the expansion cover 200, and the vibration is the second support 330 and the structure through the connecting body 320 (G). The first support 310 and the second support 330 are, for example, in the shape of a ring, the center of which is opened, and the connecting body 320 is the first support 310 and the second support 330 It may be composed of a plurality of connected to each other. The plate spring 300 is elastically moved in a direction away from or closer to the structure G.

In one embodiment of the present invention, it is preferable that the first support 310 is in contact with the tension portion 220 on which the sound stiffness of the telescopic cover 200 is applied. When the first support 310 is in contact with the sound stiffness, vibration transmitted to the structure G is transmitted in a relatively small size by the sound stiffness KN compared to the equivalent stiffness KEQ, which prevents leakage. It can increase the effect.

For example, the first support 310 is disposed to be perpendicular to the pressing button 530 or is disposed closer to the center of the expansion and contraction cover 200 than the pressing button 530 based on the horizontal direction, so that the sound stiffness is Vibration can be transmitted from the elastic cover 200 to be applied, and it is preferable to avoid being disposed on the left or right side of the pressing button 530 based on the horizontal direction.

As described above, the present invention pushes the vibration actuator 100 in the direction of the bone (B) by using the elasticity and elasticity of the elastic cover 200 to increase the vibration response transmitted to the bone (B), and the vibration actuator ( 100) to reduce the equivalent stiffness transmitted to the structure (G) through the stretch cover 200 by compressing or tensioning the stretch cover 200, and adjusting the contact position between the plate spring 300 and the stretch cover 200 It has the effect of preventing the leakage by reducing the vibration response transmitted to the structure. In addition, there is an effect of increasing the energy generation efficiency from the arrangement structure of the piezoelectric element 400 receiving vibration from the compression unit 210.

100: vibration actuator
200: new cover
210: compression section 220: tension section
230: support
300: leaf spring 310: first support
320: connecting body 330: second support
400: piezoelectric element 410: energy storage
500: pressurized auxiliary body 510: insert button
520: Guide 530: Press button
B: Goal G: Structure

Claims (8)

One side is arranged in the direction of the user's bone and the other is arranged in the direction of the structure, a vibration actuator that generates vibration according to an external input signal to transmit vibration to the bone;
An elastic cover provided to surround the other side of the vibration actuator and having elasticity; And
One end protrudes from the stretch cover in the direction of the bone, and includes a pressure auxiliary body that can be inserted into the stretch cover,
The pressure auxiliary body,
An insertion button protruding in the bone direction and insertable into the elastic cover by an external load;
A pressing button connected to the insertion button and pressing one side of the stretching cover from the structure to the bone direction as the insertion button is inserted into the stretching cover in the direction of the structure from the bone by an external load; And
A guide having a certain curvature while connecting the insertion button and the pressing button, and guiding the pressing direction of the pressing button from the structure to the bone direction according to the insertion of the insertion button. Has a pressurized bone conduction mount structure.
According to claim 1,
The pressure auxiliary body,
The guide and the pressing button is provided inside the telescopic cover,
The pressure button is a pressure-type bone conduction mount structure having a leak prevention function, characterized in that closer to the bone direction than the guide.
According to claim 1,
The pressure auxiliary body,
The insertion button is provided to penetrate the telescopic cover,
The guide is disposed in the direction of the structure on the outside of the stretch cover,
The pressing button is a pressurized bone conduction mount structure having a leak prevention function, characterized in that the outer surface of the elastic cover is pressed in the direction of the bone.
The method of claim 2 or 3,
The expansion cover,
A support unit for supporting the vibration actuator in an inserted state;
A compression unit compressed by the pressing button to generate positive rigidity; And
A tension-type bone conduction mount structure having a leak-proof function, comprising: a tension portion that is stretched by pressing of the pressing button to generate sound stiffness.
The method of claim 4,
A piezoelectric element coupled to the elastic cover and converting pressure according to an external load into electrical energy; And
Energy storage unit for storing the electrical energy converted in the piezoelectric element; Pressurized bone conduction mount structure having a leak-proof function further comprising a.
The method of claim 5,
The piezoelectric element is a pressurized bone conduction mount structure having a leak prevention function, characterized in that provided in the compression unit.
According to claim 1,
Pressurized bone conduction mount structure having a leak-proof function, characterized in that it further comprises a plate spring provided between the stretch cover and the structure to absorb the force transmitted to the structure through the stretch cover.
The method of claim 7,
The leaf spring,
A first support connected to the telescopic cover;
A second support connected to the structure and provided at a predetermined distance from the first support; And
It includes; a connecting body for connecting the first support and the second support to each other, including,
Pressurized bone conduction mount structure having a leak prevention function, characterized in that the tension when the external load.

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