WO2016182155A1

WO2016182155A1 - Vibration output apparatus and portable electronic device comprising vibration output apparatus

Info

Publication number: WO2016182155A1
Application number: PCT/KR2015/012335
Authority: WO
Inventors: 강윤규; 김재용
Original assignee: 주식회사 예일전자
Priority date: 2015-05-08
Filing date: 2015-11-17
Publication date: 2016-11-17

Abstract

The present invention relates to a vibration output apparatus, and one embodiment of the present invention may provide a vibration output apparatus comprising: a magnetic circuit which generates a vibration; a yoke which makes contact with the upper surface of the magnetic circuit and has at least one lateral surface thereof have steps having different heights from each other formed in the height direction, thereby forming at least one or more space in the upper surface thereof; and an elastic body which makes contact with at least one part of the upper surface of the yoke and undergoes vibrational motion in the at least one or more space, wherein the elastic body comprises a first elastic body unit and a second elastic body unit, and the first elastic body unit and the second elastic body unit are integrally molded.

Description

Portable electronic device including vibration output device and vibration output device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for outputting vibration, and more particularly, to a device for outputting vibration using bone conduction technology and a portable electronic device including such a vibration output device.

Recently, products using the bone conduction technology, which is widely known as being mounted on a mobile phone, have been appearing one after another. Various electronic devices using bone conduction technology, for example, applications such as speakers or hearing aids are commercially available. Temuco Japan, which holds patents related to bone conduction, plans to launch products that use bone conduction technology such as speakers and microphones that can be used in a vacuum and can be used anywhere in the water.

In general, the sound is recognized as the vibration of the air echoes the eardrum and the vibration is transmitted to the cochlea. Bone conduction, on the other hand, transmits vibrations directly from the bone to the cochlea. It is because of this principle that the sound is heard even when the ears are closed. Because of this, even if the eardrum and disorders, if the cochlea and auditory nerves are normal, you can hear the sound as bone conduction.

5 Bone conduction technology itself has been established before, but there have been obstacles in miniaturization to commercialize it as a product. This is because the output by bone conduction is proportional to the magnitude. Therefore, Temuco Japan has invested heavily in developing bone conduction speakers that have reduced component count and altered internal structure. In addition, research on bone conduction speakers for voice communication using the same is in progress.

Generally, a sound or vibration output device converts an electrical signal input from a signal source into a mechanical signal and outputs sound or vibration force such as a speaker, a receiver, a buzzer, or a vibration motor (vibrator) that outputs sound or generates vibration force. It is a device for outputting, the bone conduction output device is also applicable.

Such sound or vibration output devices have a wide range of applications depending on their size and use. In particular, in response to the growth of the information and telecommunications industry, small acoustic or vibration output devices widely used for vibration calls of communication terminals, in particular, small vibration motors, are popular with touch screen terminals, including smartphones, to function as existing rotary vibration motors. The adoption of superior linear motion vibration motors is increasing rapidly.

The reason why the linear motion vibration motor is being applied to portable IT devices such as touch phones including smartphones and general mobile phones is that the response speed is faster, the noise is lower, and the life of the product is greatly improved than the rotary vibration motor. Response speed refers to the time it takes to reach 50% of the vibration force at maximum displacement, which is the biggest reason to adopt a linear motion vibration motor.

Recently, the touch screen terminal has evolved into a smart phone to download and use a variety of applications, such applications have a variety of functions and feedback vibrations that are suitable for such functions, the conventional linear motion in the art to satisfy this There is a demand for a vibration motor that has a faster response speed than the vibration motor.

The problem to be solved by an embodiment of the present invention is to provide a vibration output device that can increase the vibration force of the elastic body, and can directly transmit vibration to the body and skin.

Another object of the present invention is to provide a vibration output device capable of improving bone conduction by transmitting vibration without loss.

One embodiment according to the present invention is a magnetic circuit for generating a vibration (vibration), in contact with the upper surface of the magnetic circuit, at least one of the one side is formed with a step at a different height in the height direction, at least one space on the upper surface A yoke formed therein and an elastic body in contact with at least a portion of an upper surface of the yoke and vibrating in the at least one or more spaces, the elastic body comprising a first elastic unit and a second elastic unit, and the first elastic unit and The second elastic unit may provide an integrated vibration output device.

Vibration output device according to another embodiment of the present invention can transmit the vibration directly to the body and skin to prevent the bone conduction lowering or distortion caused by vibration attenuation.

The effects of the present invention are not limited to those mentioned above, and other effects, which are not mentioned above, will be clearly understood by those skilled in the art from the following description.

Various aspects are now described with reference to the drawings, wherein like reference numerals are used to refer to like components throughout. In the following examples, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It will be evident, however, that such aspect (s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more aspects.

1 is a cross-sectional view showing a cross section of a vibration output device according to an embodiment of the present invention.

Figure 2 (a) is a perspective view showing a yoke according to an embodiment of the present invention, Figure 2 (b) and (c) shows a view of the yoke according to an embodiment of the present invention from one side, Figure 2 (d) shows a view from above of the yoke according to an embodiment of the present invention.

3 is a perspective view showing a yoke according to an embodiment of the present invention.

Figure 4 is a perspective view of an elastic body according to an embodiment of the present invention.

5 is a view for showing an elastic body in contact with the upper surface of the yoke according to an embodiment of the present invention.

6 is a schematic diagram showing that the elastic body according to an embodiment of the present invention vibrates in a predetermined space.

7 is a view for explaining a housing according to an embodiment of the present invention.

8 is an exploded view showing a vibration output device according to an embodiment of the present invention.

9 and 10 are schematic diagrams showing a vibration output device according to an embodiment of the present invention mounted on a portable electronic device.

The objects, features, and advantages of the present invention described above will become more apparent through the following embodiments in conjunction with the accompanying drawings. The following specific structural to functional descriptions are merely illustrated for the purpose of describing embodiments in accordance with the concepts of the present invention, and embodiments in accordance with the concepts of the present invention may be embodied in various forms and may not be described in the specification or the application. It should not be construed as limited to the embodiments.

Embodiments in accordance with the concepts of the present invention can be variously modified and have a variety of forms specific embodiments will be illustrated in the drawings and described in detail in the specification or the application. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a specific disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and / or second may be used to describe various components, but the components are not limited to the terms. The terms are only for the purpose of distinguishing one component from other components, for example, without departing from the scope of the rights according to the inventive concept, the first component may be called a second component, and For example, the second component may also be referred to as a first component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to that other component, but it may be understood that other components may be present in the middle. Should be. On the other hand, when any component is said to be "directly connected" or "directly connected" or "directly" to another component, it should be understood that there is no other component in between. Other expressions to describe the relationship between components, such as "between" and "immediately between" or "adjacent to" and "directly adjacent to", should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof that is described, and that one or more other features or numbers, It is to be understood that it does not exclude in advance the possibility of the presence or addition of steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. Do not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the vibration output device 10 according to an exemplary embodiment may include a magnetic circuit 100, a yoke 200, and an elastic body 300.

The magnetic circuit 100 may generate vibration. The magnetic circuit 100 may include a magnet 110 and a top plate 120. Here, the magnet 110 may be made of a material having a magnetic force, it may vibrate in accordance with the change of the surrounding magnetic field. In addition, the top plate 120 may concentrate the magnetic force of the magnet (110). The magnetic circuit 100 may be provided at regular intervals from the coil 130. When the AC signal is applied to the coil 130, the magnet 110 may vibrate according to the direction, intensity, and frequency of the AC signal applied to the coil 130. That is, the magnet 110 may serve as a vibrator that vibrates according to an AC signal applied to the coil 130. This is due to Fleming's left-hand law that the conductors placed in the magnetic field are forced in a certain direction, and the theory related to the principle is well-known technique and will not be described in detail. Conventionally, a vibration motor using a brush and a commutator has been frequently used, but there is a problem in excessive noise and miniaturization, so that the vibration output device 10 according to an embodiment of the present invention uses the coil 130 and the magnetic to generate vibration. Circuit 100 may be included. The vibration generated by the magnetic circuit 100 may be directly transmitted to the yoke 200 in contact with the upper surface of the magnetic circuit 100.

The yoke 200 may be provided to contact the upper surface of the magnetic circuit 100. Here, the yoke 200 is in contact with the magnetic circuit 100 is not provided with a separate vibration transmitter between the yoke 200 and the magnetic circuit 100, the vibration generated in the magnetic circuit 100 is yoke 200 ) Means to be delivered directly to. That is, the yoke 200 is sequentially stacked on the upper surface of the magnetic circuit 100, or the magnetic circuit 100 and the yoke 200 are integrally manufactured at the time of manufacture so that the vibration generated in the magnetic circuit 100 is directly yoked ( 200).

In this case, the yoke 200 may provide a predetermined space 210 to allow the elastic body 300 to vibrate. In more detail, the yoke 200 according to an embodiment of the present invention may be implemented in a rectangular parallelepiped shape as a whole, and one side of the rectangular parallelepiped shape of the yoke 200 may have a stepped height 220 at a different height in a height direction. It may be formed, a structure in which at least one space 210 is formed on the upper surface.

The elastic body 300 may include a plurality of elastic body units. For example, the elastic body 300 may include a first elastic unit 310 and a second elastic unit 320. In addition, the elastic body 300 may include one or more unit connection parts for connecting the

elastic units

310 and 320.

The plurality of elastic units and the one or more unit connection parts included in the elastic body 300 may be integrally formed. For example, the first elastic unit 310, the second elastic unit 320, and the plurality of

unit connection parts

330 and 340 included in the elastic body 300 may be formed by insert injection molding using synthetic resin or natural resin. It can be molded in one piece.

In addition, the first elastic unit 310, the second elastic unit 320, and the plurality of

unit connection parts

330 and 340 included in the elastic body may be integrally molded by a casting method using a metal member.

The above-described example is merely an embodiment, and the elastic body 300 is not limited thereto, and may be integrally formed using an elastic member.

Referring to FIG. 2A, the magnetic circuit 100 may be in contact with the lower surface of the yoke 200 according to an embodiment of the present invention. In addition, the vibration plate 400 and the elastic body 300 may contact the upper surface of the yoke 200 according to an embodiment of the present invention. Furthermore, a predetermined space 210 may be formed on the upper surface of the yoke 200 according to an embodiment of the present invention so that the elastic body 300 may vibrate. Here, the predetermined space 210 may be a plurality. In one embodiment, when an elastic body 300 including two

elastic units

310 and 320 is used, at least two spaces 210 may be formed so that the two

elastic units

310 and 320 may vibrate. Can be. The space 210 in which the elastic body 300 according to an embodiment of the present invention may vibrate may be formed by cutting the upper surface of the yoke 200. For example, when the yoke 200 according to the exemplary embodiment of the present invention has a rectangular parallelepiped shape, a predetermined space 210 may be formed by scraping off a part of the upper surface of the rectangular parallelepiped yoke 200. When the yoke 200 is viewed from one side, different heights may be formed by the predetermined space 210 formed on the upper surface of the yoke 200. In this regard, it will be described in detail below.

Referring to FIG. 2B, when a part of the upper surface of the yoke 200 is cut into a rectangular parallelepiped shape and viewed from one side, different heights H1 and H2 can be observed. In addition, the yoke 200 according to the embodiment of the present invention is a stepped portion formed by a difference between H1 and H2 at a portion where the yoke 200 provided at the height of H1 and the yoke 200 provided at the height of H2 meet each other ( 220 may be provided. Here, the part in which the step 220 is formed may be variously determined according to a user's setting, and the scope of the present invention is not limited to a special position where the step 220 is formed. In FIG. 2B, the height of the yoke 200 according to an embodiment of the present invention is described as H 1 and H 2, for example, but the scope of the present invention is not limited to the height of the specific yoke 200. According to the user's setting, the yoke 200 having various heights may be implemented. Furthermore, since H1 means the overall height of the yoke 200 according to the embodiment of the present invention, the height of the space 210 formed by cutting is to be H1-H2, and the height H1-H2 of the space 210 is If not 0, it may be included in the scope of the present invention.

Referring to FIG. 2C, the bottom surface 230 of the space 210 in which the yoke 200 is cut and formed may have a predetermined slope. Although the height of the step 220 is determined as H1-H2 from above, when a constant slope is formed on the bottom surface 230 of the space 210 formed by cutting, the horizontal plane is formed, the height of the step 220 is H1-H2. Can be smaller. As will be described in detail below, since the space 210 formed on the upper surface of the yoke 200 according to an embodiment of the present invention will be utilized as a space 210 in which the elastic body 300 can vibrate, The height of the space 210 may be increased toward the outside. Here, the inclination of the bottom surface 230 of the space 210 formed on the upper surface of the yoke 200 can be variously implemented according to the user's setting. For example, when the vibration width of the elastic body 300 is large, the space 210 that provides a region capable of vibrating is preferably large, and thus may be implemented such that H1 and H2 are different. In consideration of the loss of materials in the cutting process, the cutting process may be performed such that the height of the space 210 increases toward the outside of the space 210 formed on the upper surface of the yoke 200.

As shown in (d) of FIG. 2, when the yoke 200 according to the exemplary embodiment of the present invention is viewed from above, the space 210 formed on the upper surface of the yoke 200 may have a virtual first side 211 and a virtual state. It may be partitioned into the second side 212 of and open to the outside and exposed. In addition, the space 210 formed on the upper surface of the yoke 200 may be divided into a third side 213 and a fourth side 214, and the third side 213 and the fourth side 214 may be yoke ( It may be part of the inner side of the 200. In FIG. 2D, the virtual second side surface 212 is exposed to the outside, but in another embodiment, a surface in which the space 210 formed on the upper surface of the yoke 200 is exposed to the outside is minimized. can do. That is, the virtual second side surface may be implemented as an inner side surface of the space 210 formed on the upper surface of the yoke 200 so that only the virtual first side surface 211 may be exposed to the outside.

Referring back to FIG. 1, the vibration output device 10 according to an embodiment of the present invention may include an elastic body 300 in contact with an upper surface of the yoke 200. The elastic body 300 may be in contact with at least a portion of the upper surface of the yoke 200. That is, since the space 210 through which the elastic body 300 can vibrate is formed on the top surface of the yoke 200 according to the embodiment of the present invention, the yoke 200 is disposed on the top surface of the yoke 200 except for the portion where the space 210 is formed. A portion of the elastic body 300 may contact. When the magnetic circuit 100 vibrates according to an AC signal applied to the coil 130, the magnetic circuit 100 is directly transmitted to the yoke 200 in contact with the magnetic circuit 100, and the vibration transmitted to the yoke 200 is the yoke 200. It is transmitted to the elastic body 300 in contact with the upper surface of the.

Referring to FIG. 3, the vibration output device 10 according to an exemplary embodiment of the present invention may include a magnetic circuit 100 that generates vibration, a yoke 200, and the yoke 200 contacting an upper surface of the magnetic circuit 100. It may include an elastic body 300 in contact with at least a portion of the upper surface of, wherein, at least a portion of the elastic body 300 is formed on the upper surface of the yoke 200 so that the space 210 is vibrated up and down At least one of the lengths of the edges of the space 210 may be smaller than the length of the edges of the bottom surface of the yoke 200.

For example, if L1 is the edge length of the lower surface of the yoke 200 and L2, L3, L4, L5 is the edge length of the upper surface of the yoke 200, the elastic body 300 is formed on the upper surface of the yoke 200. Since the space 210 capable of vibrating should be formed, the edge lengths L2, L3, L4, and L5 of the upper surface should be smaller than the edge length L1 of the lower surface by the formed space 210. That is, even if the edge length of the upper surface is L2 and L3, a part of the edge becomes a part (L2 and L3) of the corner of the space 210 in which the elastic body 300 can vibrate, and the edge of the upper surface of the yoke 200 The length L2, L3, L4, L5 should be smaller than the length L1 of the edge of the lower surface. As shown in FIG. 3, the edge length of the upper surface of the yoke 200 is indicated by L2, L3, L4, L5, etc., but none of L2, L3, L4, L5 can be larger than L1.

In addition, at least a part of the space 210 in which the elastic body 300 vibrates may be formed to be exposed to the outside, and the space 210 toward the outer side from one end surface of the space 210 formed on the upper surface of the yoke 200. The height of can be increased. As described above, when the inclination is given to the bottom surface 230 of the space 210 formed on the upper surface of the yoke 200, the width at which the elastic body 300 vibrates may be increased, and a strong vibration may be transmitted to a user or the like. have.

Looking at another aspect, the vibration output device 10 according to an embodiment of the present invention is a magnetic circuit 100 for generating a vibration, an elastic body 300 for vibrating movement based on the vibration of the magnetic circuit 100, magnetic Located in contact with the circuit 100 and the elastic body 300, the surface area of one of the upper and lower surfaces is provided in contact with the yoke 200 and the upper surface of the yoke 200 formed the largest surface area, the yoke 200 Vibration plate 400 (vibration plate) for outputting the vibration to the outside in accordance with the vibration of the). That is, when the space 210 in which the elastic body 300 is vibrated is formed on one of the upper and lower surfaces of the yoke 200, the surface areas of the upper and lower surfaces of the yoke 200 are inevitably different from each other. In the surface having a large surface area, the elastic body 300 may vibrate. In addition, when the surface area of the upper surface of the yoke 200 is provided with a surface area larger than the surface area of the lower surface of the yoke 200, a predetermined space 210 may be formed on the upper surface of the yoke 200. For example, the predetermined space 210 may be an open groove in which at least part of the space 210 is exposed to the outside. Here, the open groove exposed to the outside refers to an open groove that can observe three inner surfaces (front, right and bottom surfaces) when viewed from the outside as excluding the sealed space 210.

4 is a view for explaining an elastic body according to an embodiment of the present invention.

The elastic body 300 according to an embodiment of the present invention may include a plurality of elastic body units. For example, the elastic body 300 may include a first elastic unit 310 and a second elastic unit 320.

Each elastic unit may include a vibrating portion and a fixing portion. For example, the first elastic unit 310 may include a first vibrating unit 312 and a first fixing unit 314, and the second elastic unit 320 may include a second vibrating unit 322 and a first unit. It may include two fixing portion (324).

The vibration unit of the elastic unit may contact the upper surface of the yoke 200 to vibrate according to the vibration of the magnetic circuit 100. The lower surface of the vibrating unit of the elastic unit is in contact with the upper surface of the yoke 200, the lower surface of the yoke 200 is in contact with the upper surface of the magnetic circuit 100, the vibration generated by the magnetic circuit 100 through the yoke 200 The elastic body 300 may be directly transmitted.

For example, when the magnetic circuit 100 moves upward, the yoke 200 in contact with the upper surface of the magnetic circuit 100 and the vibration portion of the elastic unit in contact with the upper surface of the yoke also move upward. In this case, the fixing parts 214 and 224 of the elastic unit are fixed to the housing 500 and do not move.

The vibrating portion of the elastic unit moved in the upward direction is provided with a force in the downward direction by the elasticity of the elastic unit, the vibrating portion of the elastic unit may move in the downward direction. As the above process is repeated, the magnetic circuit 100 and the yoke 200 may vibrate to move up and down.

The elastic body 300 may include at least one unit connection part for connecting the

elastic units

310 and 320. For example, referring to FIG. 4, the elastic body 300 may include two

unit connection parts

330 and 340.

The unit connection part may be made of a synthetic resin, a natural resin, or a metal member, but is not limited thereto.

The unit connection part may be attached to one side of the elastic unit to connect the plurality of elastic units. For example, the first unit connection part 330 is attached to one side of the first elastic unit 310 and one side of the second elastic unit 320, so that the first elastic unit 310 and the second elastic unit ( 320) can be connected. In addition, the second unit connecting portion 340 is also attached to one side of the first elastic unit 310 and one side of the second elastic unit 320, the first elastic unit 310 and the second elastic unit 320 Can be connected.

In addition, the first unit connecting portion 330 is attached to one side of the fixing portion 314 of the first elastic unit and one side of the fixing portion 324 of the second elastic unit, so that the first elastic unit 310 and the first 2 elastic unit 320 may be connected. In addition, the second unit connecting portion 340 is in a direction opposite to the first unit connecting portion 330, one side of the fixing portion 3140 of the first elastic unit and one side of the fixing portion 324 of the second elastic unit. Attached to the first elastic unit 310 and the second elastic unit 320 may be connected.

The plurality of elastic units and the one or more unit connection parts included in the elastic body 300 may be integrally formed. For example, the first elastic unit 310, the second elastic unit 320, and the two

unit connecting portions

330 and 340 may be integrally molded by insert injection molding using synthetic resin or natural resin.

In addition, the plurality of

elastic units

310 and 320 and the plurality of

unit connection parts

330 and 340 included in the elastic body 300 may be integrally molded by a casting method using a metal member.

The elastic body 300 may include an opening. For example, the elastic body 300 may include an opening 350 and may be integrally formed to expose the vibration plate 400 to the outside through the opening 350. The vibration plate 400 may be directly exposed to the outside to directly contact the body.

The elastic body 300 may be integrally formed to contact a part of the upper surface of the yoke 200. For example, the vibrator 312 of the first elastic unit 310 and the vibrator 322 of the second elastic unit 320 included in the elastic body 300 may be in contact with a part of the yoke 200, respectively. .

In addition, the elastic body 300 may be seated on the upper surface of the housing 500. For example, the fixing part 314 of the first elastic unit 310 included in the elastic body 300 is attached to the upper surface of the right side 540 or the left side 530 of the housing, the second elastic unit 320 The fixing portion 324 of the housing is attached to the upper surface of the left side 530 or the right side 540 of the housing, the first unit connecting portion 330 is attached to the upper surface of the front 510 or rear 520 of the housing, The second unit connection part 340 may be attached to the upper surface of the rear surface 520 or the front surface 510 of the housing, so that the elastic body 300 may be seated on the upper surface of the housing 500.

The vibration output device 10 may not generate a segmentation vibration during the vibration of the elastic body by using the elastic body 300 formed integrally. In addition, by using the elastic body 300 formed integrally, the vibration output device 10 can increase the vibration excitation force and directly transmit the vibration to the body and skin.

The above-described example is merely an embodiment, and the elastic body 300 is not limited thereto, and may be molded in various ways using a member having elasticity.

Referring to 5 (a), the elastic body 300 included in the vibration output device 10 according to an embodiment of the present invention may be in contact with a part of the upper surface of the yoke 200. For example, the vibration output device The elastic body 300 included in the 10 may include the first elastic unit 310 and the second elastic unit 320, and the vibrating unit 312 and the second elastic unit of the first elastic unit 310 may be used. The vibrator 322 of the 320 may be in contact with a portion of the upper surface of the yoke 200, respectively.

Since the space 210 in which the elastic body 300 can vibrate is formed on the upper surface of the yoke 200, a part 312 of the elastic body 300 is partially formed on a part of the upper surface of the yoke 200 except for the portion where the space 210 is formed. , 322 may be encountered.

According to one embodiment of the invention, the vibration plate 400 may be in contact with the upper surface of the yoke. The vibration plate 400 may be exposed to the outside by passing through the opening 350 of the elastic member 300 in contact with the top surface of the yoke 200 and in contact with the top surface of the yoke 200.

Referring to FIG. 5B, the vibration output device 10 may include a housing 500. The upper and lower surfaces of the housing 500 are open, and the front surface 510, the rear surface 520, the left surface 530, and the right surface 540 are closed, and thus the housing 500 may be molded to have a space therein.

The elastic body 300 may be seated on an upper surface of the housing 500. For example, the fixing part 314 of the first elastic unit 310 included in the elastic body 300 is attached to the upper surface of the right side 540 or the left side 530 of the housing, the second elastic unit 320 The fixing portion 324 of the housing is attached to the upper surface of the left side 530 or the right side 540 of the housing, the first unit connecting portion 330 is attached to the upper surface of the front 510 or rear 520 of the housing, The second unit connection part 340 may be attached to the upper surface of the rear surface 520 or the front surface 510 of the housing, so that the elastic body 300 may be seated on the upper surface of the housing 500.

Referring to FIG. 6A, when the magnetic circuit 100 moves upward, the yoke 200 in contact with the upper surface of the magnetic circuit 100 also moves upward, and the vibrating portion of the elastic body 300 ( 312 and 322 also move in the same direction. At this time, since the fixing

parts

314 and 324 of the elastic body 300 do not move, the elastic body 300 may be bent by elasticity. In order to bend the elastic body 300, a space 210 that can be bent should be provided. The upper surface of the yoke 200 according to an embodiment of the present invention has a space 210 in which the elastic body 300 can vibrate. ) May be provided.

Referring to FIG. 6B, when the magnetic circuit 100 moves downward, the yoke 200, which is in contact with the upper surface of the magnetic circuit 100, also moves downward, and the vibrating portion of the elastic body 300 ( 312 and 322 also move in the same direction. At this time, since the fixing

parts

314 and 324 of the elastic body 300 do not move, the elastic body 300 may be bent by elasticity. Unlike in FIG. 5A, a space 210 for bending is not required.

In FIG. 6, the degree to which the elastic body 300 is bent is schematically illustrated, but the scope of the present invention is not limited to the elastic modulus of the specific elastic body 300 or the angle at which the elastic body 300 is bent. However, in order to increase the intensity of vibration, the width of the vibrations of the yoke 200 and the elastic body 300 must be increased, and the space 210 where the elastic body 300 vibrates must be secured. According to the performance of, the upper surface of the yoke 200 may be provided with a space 210 having various volumes.

In order to vibrate the elastic body 300 according to an embodiment of the present invention to move up and down, it is necessary to provide a fixed reference point so that the vibrating

parts

312 and 322 of the elastic body 300 can vibrate. Therefore, the elastic body 300 according to the exemplary embodiment of the present invention may include fixing

parts

314 and 324. The fixing

parts

314 and 324 of the elastic body 300 may be coupled to the non-vibrating portion.

7 is a view for explaining a housing 500 according to an embodiment of the present invention.

Referring to FIG. 7, the upper and lower surfaces of the housing 500 according to the exemplary embodiment of the present invention are opened, and the left side 530, the right side 540, the front side 510, and the rear side 520 are closed. By having a structure, it can be molded to have a space therein.

The elastic body 300 may be seated on the upper portion of the housing 500. For example, the fixing part 314 of the first elastic unit 310 included in the elastic body 300 is attached to the upper surface of the right side 540 or the left side 530 of the housing, the second elastic unit 320 The fixing portion 324 of the housing is attached to the upper surface of the left side 530 or the right side 540 of the housing, the first unit connecting portion 330 is attached to the upper surface of the front 510 or rear 520 of the housing, The second unit connection part 340 may be attached to the upper surface of the front surface 510 or the rear surface 520 of the housing, so that the elastic body 300 may be seated on the upper surface of the housing 500.

In this case, the fixing part 314 of the first elastic unit 310 may be attached to the housing 500 in a direction opposite to the fixing part 324 of the second elastic unit 310, and the first unit connection part ( The 330 may be attached to the housing 500 in a direction opposite to the second unit connection portion 340.

The housing 500 may provide a reference point for the elastic body 300 to vibrate. In one embodiment, the fixing

portions

314, 324 of the elastic body 300 may be attached to the upper surface of the left side 530 or the right side 540 of the housing 500, the vibration portion ( 312 and 322 may be provided to contact a part of the upper surface of the yoke 200. By vibrating motion of the yoke 200, the vibrating

parts

312 and 322 of the elastic body 300 may vibrate up and down based on the fixing

parts

314 and 324 of the elastic body 300.

The lower surface of the housing 500 may be open. In addition, the bottom surface of the left side 530, the right side 540, the front side 510, the rear side 520, or a combination thereof of the housing 500 may each include a bent portion. For example, the left side 530, the right side 540, the front side 510, and the rear side 520 of the housing 500 each include a bent portion, and the housing 500 is formed in the bent portion and the cap 820. By coupling the included bent portion, the lower surface of the housing 500 can be seated in the cap (Cap).

Referring to FIG. 8, the vibration output device 10 according to an embodiment of the present invention may include a PCB substrate 810. The PCB substrate 810 may be a means capable of supporting the vibration output device 10. The cap 820 may be provided on an upper surface of the PCB substrate 810. The cap 820 may be fixed by connecting the housing 500 and the PCB substrate 810. As described above, the upper surface and the lower surface of the housing 500 may be opened, and the front surface 510, the rear surface 520, the left surface 530, and the right surface 540 may be closed to have a space therein. The coil 130 may be provided in a space inside the housing 500. The coil 130 may provide a change in the magnetic field according to an AC signal applied from the outside. The magnetic circuit 100 may be provided at regular intervals without being in contact with the coil 130. The bottom plate of the magnetic circuit 100 may be provided with a top plate 120 that can concentrate the magnetic force of the magnetic circuit 100. The yoke 200 may be provided on the upper surface of the magnetic circuit 100, and the vibration of the magnetic circuit 100 may be transmitted to the yoke 200. Some of the upper surface of the yoke 200 may be in contact with the vibrating portion of the elastic body 300, the fixing

portion

314, 324 of the elastic body 300 is the left side 530, the right side 540, or the housing 500 Combinations of these can be made. The upper surface of the yoke 200 is provided with a vibration plate 400 may transmit the vibration of the magnetic circuit 100 to the user. In addition, a hole 840 through which the rivet 830 may be connected may be formed at the center of the yoke 200 and the vibration plate 400. Each of the components described above may be combined by the rivet 830 and the yoke pole 850 to be one vibration output device 10.

One embodiment according to the present invention is in contact with the magnetic circuit 100, the upper surface of the magnetic circuit 100 for generating a vibration (vibration), at least one of the one side is stepped 220 at different heights in the height direction The elastic body 300 is formed to contact the at least one of the yoke 200 and the upper surface of the yoke 200 and at least one space 210 is formed on the upper surface, and vibrating movement in the at least one space 210 A portable electronic device including the vibration output device 10 provided can be provided. Here, the portable electronic device may include an electronic device that needs to transmit a voice signal or a vibration signal. For example, the portable electronic device may be a portable terminal, a mobile terminal, a telematics terminal, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA). Any one of various electronic devices such as WiBro terminal, Internet Protocol Television (IPTV) terminal, Audio Video Navigation (AVN) terminal, Portable Multimedia Player (PMP), Navigation Terminal (Vehicle Navigation Device), etc. Can be In addition, the portable electronic device may include a Google glass of Google.

Referring to FIGS. 9A and 9B, the vibration output device 10 according to an exemplary embodiment may be mounted inside the portable electronic device 1000. Here, the portable electronic device 1000 may include a Google glass 1000 of Google. The Google glass 1000 may include a camera 1010 capable of capturing an external image, and a visual overlay 1020 capable of providing an image to a user. In addition, the Google glass 1000 may include a communication module 1030 capable of exchanging data with an external communication network and an operation processing device 1040 such as a CPU capable of computing received data. Furthermore, the Google glass 1000 may include a rechargeable battery unit 1050 capable of supplying energy, and a support unit 1060 assisting a user or the like to wear like glasses. In addition, the Google glass 1000 according to an embodiment of the present invention may include a vibration output device 10 including the magnetic circuit 100, the yoke 200, and the elastic body 300. For example, the vibration output device 10 may be installed at a portion where the Google glass 1000 and the bone conduction area such as a user are in contact with each other.

As illustrated in FIG. 10, a user or the like may wear a Google glass 1000 and receive a sound signal such as a voice signal and music as a vibration signal through the vibration output device 10 included in the Google Glass 1000. .

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

As described above, related contents have been described in the best mode for carrying out the invention.

The invention can be used in a variety of electronic devices using bone conduction techniques.

Claims

Magnetic circuits for generating vibrations;

A yoke in contact with an upper surface of the magnetic circuit and at least one side of which is formed with a stepped height at a different height in a height direction so that at least one space is formed on the upper surface; And

An elastic body in contact with at least a portion of an upper surface of the yoke and vibrating in the at least one space;

Including,

And wherein said elastic body is comprised of a first elastic unit and a second elastic unit, and said first elastic unit and said second elastic unit are integrally molded.
The method of claim 1,

The vibration output device,

A housing having a space therein, wherein the upper and lower surfaces are open, and the front, rear, left and right surfaces are closed;

Located inside the housing, and further comprises a coil for receiving an AC signal provided from the outside,

Wherein the magnetic circuit vibrates in response to a change in the magnetic field provided by the coil.
The method of claim 2,

The first elastic unit and the second elastic unit is a vibration portion in contact with at least a portion of the upper surface of the yoke,

And a fixing part attached to an upper surface of at least one of a front side, a rear side, a left side, and a right side of the housing to provide a reference point for vibrating the vibrating unit.
The method of claim 2,

The first elastic unit and the second elastic unit are respectively attached to the upper surface of the left side or the right side of the housing, whereby the elastic body is seated on the upper surface of the housing,

The coil and the magnetic circuit are located in a space inside the housing,

Cap is located on the lower surface of the housing, vibration output device.
The method of claim 1,

At least a portion of the space formed by contacting the yoke and the elastic body is exposed to the outside, vibration output device.
The method of claim 1,

The vibration output device,

A vibration plate provided in contact with the upper surface of the yoke;

Include more,

The vibration plate is to output the vibration to the outside in accordance with the vibration of the yoke, vibration output device.
The method of claim 1,

The vibration is up and down vibration, vibration output device.
The method of claim 1,

The elastic body further includes at least one unit connection part connecting the first elastic unit and the second elastic unit,

Wherein the at least one unit connection, the first elastic unit, and the second elastic unit are all integrally molded.
The method of claim 1,

The elastic body further includes a first unit connection part and a second unit connection part,

The first unit connection part is attached to one side of the fixing part of the first elastic body unit and one side of the fixing part of the second elastic body unit to connect the first elastic unit and the second elastic unit,

The second unit connecting portion is attached to one side of the fixing portion of the first elastic body unit and one side of the fixing portion of the second elastic body unit in a direction facing the first unit connecting portion, and the first elastic unit And the second elastic unit,

And wherein said first elastic unit, said second elastic unit, said first unit connection, and said second unit connection are integrally molded.
Magnetic circuit for generating vibration;

A yoke in contact with an upper surface of the magnetic circuit; And

An elastic body in contact with at least a portion of an upper surface of the yoke;

In the vibration output device comprising:

At least one of the length of the edge of the space formed on the upper surface of the yoke so that at least a portion of the elastic body is to vibrate up and down is smaller than the length of the edge of the lower surface of the yoke,

And wherein said elastic body is comprised of a first elastic unit and a second elastic unit, and said first elastic unit and said second elastic unit are integrally molded.
Magnetic circuit for generating vibration;

An elastic body vibrating based on the vibration of the magnetic circuit;

A yoke positioned between the magnetic circuit and the elastic body and having a surface area of one of an upper surface and a lower surface formed with the largest surface area; And

A vibration plate provided in contact with an upper surface of the yoke and outputting the vibration to the outside according to the vibration of the yoke;

Including,

And wherein said elastic body is comprised of a first elastic unit and a second elastic unit, and said first elastic unit and said second elastic unit are integrally molded.
Magnetic circuits for generating vibrations;

A yoke in contact with an upper surface of the magnetic circuit and at least one side of which is formed with a stepped height at a different height in a height direction so that at least one space is formed on the upper surface; And

An elastic body in contact with at least a portion of an upper surface of the yoke and vibrating in the at least one space;

Including,

And said elastic body comprises a first elastic unit and a second elastic unit, and said first elastic unit and said second elastic unit comprise a vibration output device formed integrally.