WO2017142333A1

WO2017142333A1 - Vibration output device having improved structure and portable electronic device comprising same

Info

Publication number: WO2017142333A1
Application number: PCT/KR2017/001733
Authority: WO
Inventors: 강윤규; 김재용
Original assignee: 주식회사 예일전자
Priority date: 2016-02-18
Filing date: 2017-02-16
Publication date: 2017-08-24

Abstract

Provided, according to one embodiment of the present invention, is a vibration output device and a portable electronic device for outputting a vibration. One embodiment of the present invention may provide a vibration output device and a vibration output speaker comprising same, the vibration output device comprising: a magnetic circuit generating a vibration; a yoke part making contact with the upper surface of the magnetic circuit; an elastic part undergoing vibratory motion by making contact with at least one portion of the upper surface of the yoke part, wherein the elastic part comprises at least two vibration parts vibrating according to the vibration of the magnetic circuit; and a vibration plate making contact with at least one portion of the upper surface of the yoke part and, according to the vibration of the yoke part, outputting the vibration to the outside, wherein the yoke part comprises a yoke body and a yoke plate, the yoke body making contact with the upper surface of the magnetic circuit, and the yoke plate being provided on the upper surface of the yoke body, forming multiple projecting surfaces on the upper surface of the yoke body, and having a different shape according to the number of the vibration parts.

Description

Vibration output device comprising an improved structure and a portable electronic device comprising the same

The present invention relates to a device for outputting vibrations, and more particularly, to a vibration output device including an improved structure 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 in the 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 having a faster response speed, that is, a reaction speed than the vibration motor.

It is an object of the present invention to provide a vibration output device for directly transmitting vibrations to the body and skin.

The present invention is to transmit the vibration directly to the body and skin to prevent bone conduction lowering or distortion caused by vibration attenuation.

According to an embodiment of the present invention for solving the above problems, a vibration output device having an improved structure is disclosed. The vibration output device, the magnetic circuit for generating a vibration; A yoke portion in contact with an upper surface of the magnetic circuit; An elastic part vibrating in contact with at least a portion of an upper surface of the yoke part, wherein the elastic part includes at least two vibration parts vibrating according to the vibration of the magnetic circuit; And a vibration plate in contact with at least a portion of an upper surface of the yoke part and outputting the vibration to the outside according to the vibration of the yoke part, wherein the yoke part comprises: a yoke body in contact with an upper surface of the magnetic circuit; And a yoke plate provided on an upper surface of the yoke body to form a plurality of protruding surfaces on an upper surface of the yoke body and having a different shape according to the number of the vibrating parts.

According to an embodiment of the present invention for solving the above problems, a vibration output speaker having an improved structure is disclosed. The vibration output speaker, the control unit for generating a vibration by controlling the vibration output unit; And a vibration output unit generating vibrations under the control of the control unit, wherein the vibration output unit includes a magnetic circuit generating vibrations; A yoke portion in contact with an upper surface of the magnetic circuit; An elastic part vibrating in contact with at least a portion of an upper surface of the yoke part, wherein the elastic part includes at least two vibration parts vibrating according to the vibration of the magnetic circuit; And a vibration plate in contact with at least a portion of an upper surface of the yoke part and outputting the vibration to the outside according to the vibration of the yoke part, wherein the yoke part comprises: a yoke body in contact with an upper surface of the magnetic circuit; And a yoke plate provided on an upper surface of the yoke body to form a plurality of protruding surfaces on an upper surface of the yoke body and having a different shape according to the number of the vibrating parts.

The present invention can provide a vibration output device for directly transmitting vibrations to the body and skin.

The present invention, by directly transmitting the vibration to the body and skin can prevent the bone conduction lowering or distortion caused by vibration attenuation.

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.

1A and 1B show the appearance and structure of a vibration output device, according to an embodiment of the invention.

2 is a view for explaining a method of coupling the elastic portion and the housing according to an embodiment of the present invention.

3A, 3B and 3C illustrate elastic parts with two, three and four vibration parts, according to one embodiment of the invention.

4 illustrates a yoke portion having a different shape when there are two, three and four vibrating portions, according to an embodiment of the present invention.

5 is a view for explaining a method of contacting the elastic portion and the yoke portion according to an embodiment of the present invention.

6 is a view for explaining a method of coupling the components of the vibration output device without rivets according to an embodiment of the present invention.

7 illustrates a structure of a vibration output device according to another embodiment of the present invention.

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

9 is a schematic diagram showing that the elastic portion vibrating in a predetermined space according to an embodiment of the present invention.

10 illustrates an elastic portion in contact with the top surface of the yoke portion according to one embodiment of the invention.

11 illustrates a vibration output device including a housing in accordance with one embodiment of the present invention.

12 and 13 illustrate 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.

1A and 1B show the appearance and structure of a vibration output device 1000 according to one embodiment of the invention.

FIG. 1A is a diagram illustrating an external appearance of a vibration output device 1000 according to an embodiment of the present invention, and FIG. 1B is a diagram illustrating a structure of a vibration output device 1000 according to an embodiment of the present invention.

Referring to FIG. 1B, the vibration output apparatus 1000 according to the exemplary embodiment may include a magnetic circuit 100, a yoke unit 200, an elastic unit 300, and a housing 500.

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. In other words, 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 are problems in excessive noise and miniaturization. The vibration output device 1000 of the present invention includes a coil 130 and a magnetic circuit 100 to generate vibration, and the vibration generated by the magnetic circuit 100 is in contact with the upper surface of the magnetic circuit 100. It may be delivered to the unit 200.

The yoke unit 200 is provided on the yoke body 210 and the yoke body 210 in contact with the upper surface of the magnetic circuit 100 to form a plurality of protruding surfaces on the upper surface of the yoke body 210. ) May be included. In this case, the yoke plate 220 may be provided in a different shape according to the number of the vibrator 310.

Since the yoke plate 220 forms a plurality of protruding surfaces on the upper surface of the yoke body 210, a space on which the vibrating portion 310 of the elastic portion 300 may vibrate is provided on the upper surface of the yoke portion 200. One or more may be secured.

The yoke unit 200 may be provided to contact the upper surface of the magnetic circuit 100. Here, the yoke unit 200 is in contact with the magnetic circuit 100 is not provided with a separate vibration transmitter between the yoke unit 200 and the magnetic circuit 100, the vibration generated in the magnetic circuit 100 is yoke It means that it is provided to be delivered directly to the unit (200). In other words, by sequentially stacking the yoke portion 200 on the upper surface of the magnetic circuit 100 or by manufacturing the magnetic circuit 100 and the yoke portion 200 integrally at the time of manufacture, vibration generated in the magnetic circuit 100 It may be to be delivered directly to the yoke portion (200).

The elastic part 300 may include a plurality of components. For example, the elastic part 300 may include at least two or more vibration parts 310 vibrating according to the movement of the magnetic circuit 100, a fixing part 320 for fixing the elastic part 300 to the housing 500, and At least one connection part 315 connecting the vibration part 310 and the fixing part 320 may be included. In this case, the plurality of vibration parts 310, the connection part 315, and the fixing part 320 may be integrally formed. This is only an embodiment of the present invention, the components of the elastic portion 300 is not limited thereto.

The vibration plate 400 may be exposed to the outside by contacting the upper surface of the yoke portion 200 and passing through the opening 330 of the elastic portion 300 in contact with the upper surface of the yoke portion 200 (see FIG. 3A). In addition, the vibration may be output to the outside according to the vibration of the magnetic circuit 100.

The upper and lower surfaces of the housing 500 may be opened, and the side surfaces of the housing 500 may have a space therein. For example, the housing 500 may have a cylindrical shape in which top and bottom surfaces are open. In addition, the housing 500 may have a rectangular shape in which an upper surface and a lower surface are open, but is not limited thereto.

The housing 500 may include at least one component of the vibration output device in the space therein. For example, the internal space of the housing 500 may include a coil 130, a magnetic circuit 100, a yoke unit 200, an elastic unit 300, or a combination thereof, but is not limited thereto.

The housing 500 may be formed of various members. The housing 500 may be formed of a metal member (for example, iron, titanium, copper, etc.) and may be formed of reinforced plastic, but is not limited thereto.

The vibration output device 1000 may include a PCB substrate 810. The PCB substrate 810 may be provided on at least a portion of the top surface of the cap 820. The cap 820 may be fixed by connecting the housing 500 and the PCB substrate 810.

According to another embodiment of the present invention, the vibrating plate 400 and the yoke portion 200 may be combined by attaching directly without the rivet 830.

2 is a view for explaining a method in which the elastic portion 300 and the housing 500 are coupled according to an embodiment of the present invention.

According to an embodiment of the present invention, the vibration output device 1000 may include a housing 500 and an elastic part 300.

The housing 500 and the elastic part 300 may be coupled in various ways. For example, the elastic part 300 may be coupled to the housing 500 by being attached to an inner side surface of the housing 500. In addition, the elastic part 300 may be coupled to the housing 500 by curling the housing 500.

Curling herein means to bend at a predetermined angle, the predetermined angle can be determined in a variety of ways. For example, the predetermined angle may be determined as 90 degrees, and may be determined as an optimal angle for fixing the elastic part 300, but is not limited thereto.

According to one embodiment of the present invention, at least a portion of the upper portion of the housing 500 is curled in the direction of the elastic portion 300, the elastic portion 300 may be seated on the upper surface of the housing 500.

3A, 3B, and 3C illustrate an elastic portion 300 having two, three, and four vibration portions 310, according to one embodiment of the invention.

The elastic part 300, 300-1, 300-2, or 300, according to an embodiment of the present invention, includes at least two vibration parts 310 and 310-that vibrate as the magnetic circuit 100 moves. 1, 310-2, hereinafter referred to as 310) and fixing parts 320, 320-1, 320-2, hereinafter referred to as 320 to fix the elastic part 300 to the housing 500). . In addition, the elastic part 300 may include at least one or more connection parts 315, 315-1, 315-2, 315, which connect the vibrating part 310 and the fixing part 320. In this case, the components of the elastic part 300 may be integrally molded.

The plurality of vibration units 310 of the elastic unit 300 may be in contact with at least a portion of the upper surface of the yoke unit 200 to vibrate according to the vibration of the magnetic circuit 100. The bottom surface of the vibrating portion 310 of the elastic portion 300 is in contact with the upper surface of the yoke portion 200, the bottom surface of the yoke portion 200 is in contact with the upper surface of the magnetic circuit 100 is generated by the magnetic circuit 100 The vibration may be directly transmitted to the elastic part 300 through the yoke part 200.

For example, when the magnetic circuit 100 moves in an upward direction, the vibrating portion of the yoke portion 200 in contact with the upper surface of the magnetic circuit 100 and the elastic portion 300 in contact with the upper surface of the yoke portion 200. 310 also moves upward. In this case, the fixing part 320 of the elastic part 300 is fixed to the housing 500 may not move.

The vibrating portion 310 of the elastic portion 300 moved in an upward direction is provided with a force in a downward direction by elasticity, and the vibrating portion 310 of the elastic portion 300 may move in a downward direction. As the above process is repeated, the magnetic circuit 100 and the yoke unit 200 may vibrate to move up and down.

For example, when the magnetic circuit 100 moves downward, the yoke portion 200 coupled to the upper surface of the magnetic circuit 100 and the elastic portion 300 coupled to the upper surface of the yoke portion 200. The vibration unit 310 also moves in the downward direction. In this case, the fixing part 320 of the elastic part 300 is fixed to the housing 500 may not move.

The vibrating portion 310 of the elastic portion 300 moved in the lower direction is provided with a force in the upward direction by the elasticity of the elastic portion 300, the vibrating portion 310 of the elastic portion 300 to move in the upward direction. Can be. As the above process is repeated, the magnetic circuit 100 and the yoke unit 200 may vibrate to move up and down.

Referring to FIG. 3A, when two vibrating parts 310 of the elastic part 300 are provided, two connecting parts 315 may be provided. In this case, the connection part 315 may connect two vibration parts 310 to the inner surface of the fixing part 320.

Referring to FIG. 3B, when there are three vibration parts 310-1 of the elastic part 300-1, three connection parts 315-1 may be provided. In this case, the connection part 315-1 may connect three vibration parts 310-1 to the inner side of the fixing part 320-1.

Referring to FIG. 3C, when four vibrating parts 310-2 of the elastic part 300-2 are provided, four connecting parts 315-2 may be provided. In this case, the connection part 315-2 may connect four vibration parts 310-2 to the inner side surface of the fixing part 320-2.

According to an embodiment of the present invention, each of the plurality of vibration units 310 of the elastic unit 300 may vibrate independently of each other. For example, when the yoke unit 200 moves up and down without maintaining horizontality, the at least one vibrator 310 vibrates downward, and at least one of the remaining vibrators 310 is upward. Can vibrate.

Openings 330, 330-1, and 330-2. Hereafter referred to as 330 may be located at the center of the elastic part 300. In addition, the vibrator 310 may be positioned in an outer direction of the opening 330 of the elastic part 300, and the fixing part 320 may be positioned in an outer direction of the vibrator 310.

In addition, a space is formed between the vibrator 310 and the fixing part 320, so that the vibration part 310 may not collide with the fixing part 320 when the vibration part 310 vibrates.

The elastic part 300 may include a plurality of vibration parts 310, and each vibration part 310 may be connected to the fixing part 320 by the connection part 315. In this case, the components of the elastic part 300 may be molded integrally.

The connection parts 315, 315-1, 315-2, hereinafter referred to as 315, may be provided as many as the number of vibration parts 310, 310-1, 310-2, hereinafter referred to as 310, and the connection part 315 The number of is not limited to this.

The elastic part 300 may include an opening in a central portion. For example, the elastic part 300 may include an opening 330, and may be integrally formed to expose the vibrating plate 400 to the outside through the opening 330. The vibration plate 400 may be directly exposed to the outside by being exposed to the outside.

The elastic part 300 may be seated on the top surface of the housing 500 in various ways. For example, by being attached to the inner surface of the housing 500, the elastic portion 300 may be seated on the upper surface of the housing 500.

In addition, for example, at least a portion of the upper portion of the housing 500 is curled in the direction of the elastic portion 300, the elastic portion 300 may be seated on the upper surface of the housing 500. In addition, at least a portion of the inner surface of the upper portion of the housing 500 is curled in the direction of the elastic portion 300, the elastic portion 300 may be seated on the upper surface of the housing 500.

The elastic part 300 may be fixed by being coupled with the housing 500. For example, the fixing part 320 of the elastic part 300 may be fixed by being coupled with the housing 500.

According to another embodiment, the elastic part 300 may be integrally formed with the housing 500. For example, the elastic part 300 and the housing 500 may be integrally molded by a casting method using a metal member, but is not limited thereto.

4 illustrates a yoke portion 200 having a different shape when the vibrating portion 310 is two, three, and four according to an embodiment of the present invention.

According to an embodiment of the present invention, the yoke unit 200 may transmit the vibration generated in the magnetic circuit 100 to the elastic unit 300. For example, when the magnetic circuit 100 vibrates in response to an alternating current signal applied to the coil 130, the vibration is directly transmitted to the yoke unit 200 in contact with the magnetic circuit 100, and the yoke unit 200. The transmitted vibration may be transmitted to the elastic part 300 in contact with the upper surface of the yoke part 200.

According to the exemplary embodiment of the present invention, the yoke parts 200, 200-1, 200-2, and 200 are referred to as the yoke body 210 and the yoke plates 220, 220-1, 220-2, 220, or less. It may include).

The yoke body 210 may be in contact with the top surface of the magnetic circuit 100. The upper surface of the yoke body 210 may be molded in the form of a circular plate, the bottom surface of the yoke body 210 may be molded in the form of a cylinder attached to the center of the circular plate. In addition, a hole may be formed in the center of the circular plate so that the rivet 830 can be inserted. The shape of the yoke body 210 described above is just one embodiment, and the shape of the yoke body 210 may vary.

The yoke plate 220 may be provided on an upper surface of the yoke body 210 to form a plurality of protruding surfaces on the upper surface of the yoke body 210, and may be provided in different shapes according to the number of vibration units 310. The yoke plate 220 may include at least one plate body 221 and as many protrusions 222 as the number of vibration units 310. For example, when two vibrators 310 are provided, the yoke plate 220 may include one plate body 221 and two protrusions 222.

According to an embodiment of the present invention, when the vibrator 310 has two vibration parts 310, the yoke plate 220 has a plate body 221 and two protrusions 222 outside the plate body 221. ) May be included. Since the yoke plate 220 in contact with the top surface of the yoke body 210 includes two protrusions 222, two protrusion surfaces may be formed on the top surface of the yoke body 210. In this case, each of the two protruding surfaces may be in contact with the different vibration unit 310.

According to the exemplary embodiment of the present invention, when the vibration part 310-1 has three vibration parts 310-1, the yoke plate 220-1 is a plate body 221-1 and a plate body 221. It may include three protrusions (222-1) on the outside. Since the yoke plate 220-1 in contact with the top surface of the yoke body 210 includes three protrusions 222-1, three protrusion surfaces may be formed on the top surface of the yoke body 210. In this case, each of the three protruding surfaces may be in contact with a different vibration unit 310-1.

According to the exemplary embodiment of the present invention, when the vibrator 310-2 has four vibration parts 310-2, the yoke plate 220-2 is a plate body 221-2 and a plate body 221. It may include four protrusions (222-2) on the outside. Since the yoke plate 220-2 in contact with the top surface of the yoke body 210 includes four protrusions 222-2, four protrusions may be formed on the top surface of the yoke body 210. In this case, each of the four protruding surfaces may be in contact with the different vibration unit 310-2.

Protrusions 222, 222-1, 222-2, hereinafter referred to as 222 is provided with the same height as the plate body (221, 221-1, 221-2, hereinafter referred to as 221), plate body 221 It may be provided in the form of a rectangle extending in a straight line from the center of. In this case, when viewed around the plate body 221, the outer surface of the protrusion 222 may be provided in a curved form.

Protruding portion 222 may be provided integrally with the plate body 221, the shape of the yoke plate 220 is only an embodiment of the present invention, it is not limited thereto.

The yoke plate 220 may be seated on an upper surface of the yoke body 210. For example, the yoke plate 220 may contact at least a portion of the top surface of the yoke body 210, may be attached to at least a portion of the top surface of the yoke 210, and may be integrally formed with the yoke 210. It is not limited thereto.

As the yoke plate 220 is seated on an upper surface of the yoke body 210, the yoke portion 200 may include an upper surface on which at least one protruding surface is formed. A space for vibrating the vibrating part 310 of the elastic part 300 may be formed on the top surface of the yoke part 200 by at least one protruding surface formed on the top surface of the yoke part 200.

In this case, a part of the elastic part 300 may contact at least a part of the upper surface of the yoke plate 220 of the yoke part 200. When the magnetic circuit 100 vibrates according to an alternating current signal applied to the coil 130, the vibration generated by the magnetic circuit 100 is transmitted to the yoke unit 200, and the vibration transmitted to the yoke unit 200. The may be transmitted to the elastic portion 300 in contact with the upper surface of the yoke portion 200.

5 is a view for explaining a method of contacting the elastic portion 300 and the yoke portion 200 according to an embodiment of the present invention.

The yoke unit 200 may include a yoke body 210 and a yoke plate 220, and the elastic unit 300 may include a vibrator 310 and a fixing unit 320.

At least a portion of the top surface of the yoke plate 220 may contact at least a portion of the bottom surface of the vibrator 310. In this case, since a plurality of protruding surfaces are formed on the upper surface of the yoke portion 200 by the yoke plate 220, at least one space for vibrating the vibration portion 310 may be formed. Therefore, the vertical vibration of the magnetic circuit 100 may be directly transmitted to the vibration part 310 of the elastic part 300 through the yoke part 200.

The fixing part 320 fixes the outer surface of the elastic part 300 to the housing 500 so that the remaining components of the elastic part 300 except the vibration part 310 do not vibrate by the yoke part 200. Can be fixed

According to the exemplary embodiment of the present invention, when the vibrator 310 has two vibration parts 310, the yoke plate 220 of the yoke part 200 may include two protrusions 222. In this case, each of the two protrusions 222 may contact one vibrator 310. Therefore, the vibration of the yoke unit 200 may be directly transmitted to the two vibration units 310.

According to the exemplary embodiment of the present invention, when the vibration part 310-1 is three in the elastic part 300-1, the yoke plate 220-1 of the yoke part 200-1 has three protrusion parts 222. -1). In this case, each of the three protrusions 222-1 may be in contact with one vibration unit 310-1. Therefore, the vibration of the yoke unit 200-1 may be directly transmitted to the three vibration units 310-1.

According to the exemplary embodiment of the present invention, when the vibrator 310-2 has four vibration parts 310-2, the yoke plate 220-2 of the yoke part 200-2 has four protrusions 222. -2). In this case, each of the four protrusions 222-2 may be in contact with one vibration unit 310-2. Therefore, the vibration of the yoke unit 200-2 may be directly transmitted to the four vibration units 310-2.

According to the exemplary embodiment of the present invention, the vibration parts 310, 310-1, and 310-2 of the elastic parts 300, 300-1, and 300-2 are yoke parts 200, 200-1, and 200-2. Depending on the type of movement of each, each can vibrate independently.

For example, when the yoke unit 200-1 moves up and down without maintaining horizontality, when the vibrating unit 310-1 has three, the two vibrating units 310-1 vibrate upwards. The other vibration unit 310-1 may vibrate downward.

The elastic part 300 and the yoke part 200 may be coupled in various ways. For example, by attaching at least a portion of the bottom surface of the elastic portion 300 and at least a portion of the upper surface of the yoke portion 200, the elastic portion 300 and the yoke portion 200 can be coupled. In addition, the elastic part 300 and the yoke part 200 may be coupled by the rivet 830. In addition, the elastic part 300 and the yoke part 200 may be combined by being molded in one piece, but is not limited thereto.

6 is a view for explaining a method of combining the components of the vibration output device 1000 without the rivet 830 according to an embodiment of the present invention.

According to an embodiment of the present invention, the magnetic circuit 100 may include a top plate 120 and a magnet 110. The magnet 110 may be made of a material having magnetic force, and may vibrate according to changes in the surrounding magnetic field. In addition, the top plate 120 may concentrate the magnetic force of the magnet 110.

The top surface of the magnetic circuit 100 may be coupled to at least a portion of the bottom surface of the yoke unit 200. In this case, the magnetic circuit 100 may be directly attached to the yoke unit 200, so that the magnetic circuit 100 may be coupled to the yoke unit 200.

The magnetic circuit 100 may be coupled to at least a portion of the bottom of the yoke portion 200, and at least a portion of the elastic portion 300 may be coupled to at least a portion of the upper surface of the yoke portion 200. For example, the vibration part 310 of the elastic part 300 may be attached to at least a part of the upper surface of the yoke part 200.

In this case, the upper surface of the yoke portion 200 may have the form of a disc having no protruding surface. In addition, at least one protruding surface may be formed on the upper surface of the yoke unit 200 to form a space in which the elastic unit 300 may vibrate, but is not limited thereto.

The vibration plate 400 may additionally contact at least a portion of the upper surface of the yoke 200. In this case, the vibration plate 400 may be attached to the upper surface of the yoke portion 200.

According to an embodiment of the present invention, the magnetic circuit 100 is attached to at least a portion of the bottom surface of the yoke portion 200, the elastic portion 300 is attached to at least a portion of the upper surface of the yoke portion 200, and the yoke By attaching the vibration plate 400 to at least a portion of the upper surface of the unit 200, the vibration output device 1000 in which the rivet 830 is omitted may be provided.

7 illustrates a structure of a vibration output device 1000 according to another embodiment of the present invention.

According to another embodiment of the present invention, the magnetic circuit 100 and the yoke portion 200 may be fixed by the magnetic circuit guide 150. In this case, the magnetic circuit 100 and the yoke portion 200 may not be directly attached, but may be coupled by the magnetic circuit guide 150.

The magnetic circuit guide 150 may be in contact with one side of the magnetic circuit 100 and the yoke unit 200 to couple the magnetic circuit 100 and the yoke unit 200. For example, the magnetic circuit guide 150 may be curled to couple the magnetic circuit 100 and the yoke unit 200.

For example, the magnetic circuit guide 150 may be in contact with the outer surface of the magnetic circuit 100, and at least a portion of the lower end of the magnetic circuit guide 150 may be curled toward the magnetic circuit 100. In addition, the magnetic circuit guide 150 may be in contact with the outer surface of the yoke portion 200, and at least a portion of the upper end of the magnetic circuit guide 150 may be curled toward the yoke portion 200. In this case, the magnetic circuit guide 150 may be curled to couple the magnetic circuit 100 and the yoke unit 200.

According to another embodiment of the present invention, the elastic part 300 may include various types of structures.

For example, the vibrator 310 of the elastic part 300 may form two bent parts bent at a predetermined angle, thereby securing a space in which the vibrator 310 may vibrate.

The shape and number of the above-described bent portions are merely examples of the present invention, but are not limited thereto.

8 is an exploded view showing the vibration output device 1000 having two vibration parts 310 according to an embodiment of the present invention.

According to an embodiment of the present invention, the vibration output device 1000 may include a PCB substrate 810. The PCB substrate 810 may be provided on at least a portion of the top surface of the cap 820. The cap 820 may be fixed by connecting the housing 500 and the PCB substrate 810. As described above, the housing 500 has an upper surface and a lower surface, and may have a space therein by having a cylindrical shape. 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 magnetic circuit 100 may be provided with a top plate 120 that can concentrate the magnetic force of the magnet 110.

The yoke unit 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 unit 200. In this case, the magnetic circuit 100 may be directly attached to the yoke unit 200 to be coupled to the yoke unit 200, and may be coupled to the yoke unit 200 by the magnetic circuit guide 150.

The yoke unit 200 may include a yoke body 210 and a yoke plate 220.

The upper surface of the yoke portion 200 may have various shapes. For example, the upper surface of the yoke portion 200 may have the form of a flat disc having no protruding surface. In addition, the upper surface of the yoke portion 200 includes at least one protruding surface by the yoke plate 220, thereby forming a space in which the elastic portion 300 may vibrate.

Some of the upper surface of the yoke portion 200 may be in contact with the vibrating portion 310 of the elastic portion 300, the fixing portion 320 of the elastic portion 300 is in contact with at least a portion of the inner surface of the housing 500. Can be. In this case, the elastic part 300 may be coupled to the housing 500 by curling the housing 500, and may be coupled to the housing 500 by being directly attached to the inner surface of the housing 500, but is not limited thereto. It doesn't work.

The upper surface of the yoke unit 200 is provided with a vibration plate 400 may transmit the vibration of the magnetic circuit 100 to the user. In addition, a hole through which the rivet 830 may be connected may be formed at the center of the yoke unit 200 and the vibration plate 400.

At least some of each of the components described above may be coupled by rivets 830. For example, the elastic portion 300, the yoke portion 200, and the vibration plate 400 may be coupled by the rivet 830.

In addition, each of the components may be combined in other ways without the rivet 830. For example, the elastic part 300 is directly attached to the yoke part 200, and the vibration plate 400 is also directly attached to the yoke part 200, so that the vibration output device 1000 omits the rivet 830. It may have a structure.

One embodiment of the present invention can provide a portable electronic device including the above-described vibration output device. The portable electronic device may include an electronic device that requires transmission of 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). , Wibro Terminal, Internet Protocol Television (IPTV) Terminal, Audio Video Navigation (AVN) Terminal, Portable Multimedia Player (PMP), Navigation Terminal (Vehicle Navigation Device), Speaker, etc. It can be any one of the imputation devices. In addition, the portable electronic device may include a Google glass of Google.

9 is a schematic diagram showing that the elastic portion 300 vibrates in a predetermined space according to an embodiment of the present invention.

Referring to FIG. 9A, when the magnetic circuit 100 moves upward, the yoke portion 200 in contact with the upper surface of the magnetic circuit 100 also moves upward, and the true portion 300 is moved. East 310 also moves in the same direction. In this case, since the fixing part 320 of the elastic part 300 does not move, the elastic part 300 may be bent by elasticity. In order for the elastic part 300 to be bent, a flexible space 212 should be provided, and the elastic part 300 may vibrate on an upper surface of the yoke part 200 according to an embodiment of the present invention. Space 212 may be provided.

Referring to FIG. 9B, when the magnetic circuit 100 moves downward, the yoke portion 200 in contact with the upper surface of the magnetic circuit 100 also moves downward, and the elastic portion 300 is moved. East 310 also moves in the same direction. In this case, since the fixing part 320 of the elastic part 300 does not move, the elastic part 300 may be bent by elasticity.

In FIG. 9, the degree of bending of the elastic part 300 is schematically illustrated, but the scope of the present invention is not limited to the elastic modulus of the specific elastic part 300 or the angle of bending the elastic part 300. However, in order to increase the intensity of the vibration, the vibration width of the yoke portion 200 and the elastic portion 300 must be increased, and the space 212 in which the elastic portion 310 vibrates must be secured. According to the performance of the 1000, by providing the yoke plate 220 in various forms on the upper surface of the yoke portion 200, the space 212 having various volumes may be provided on the upper surface of the yoke portion 200. .

In order to vibrate the elastic part 300 to move up and down according to an embodiment of the present invention, it is necessary to provide a fixed reference point so that the vibration part 310 of the elastic part 300 can vibrate. Therefore, the elastic part 300 according to the exemplary embodiment of the present invention may include the fixing part 320. The fixing part 320 of the elastic part 300 may be coupled to a non-vibrating part such as the housing 500.

10 illustrates an elastic portion 300 in contact with an upper surface of the yoke portion 200 in accordance with one embodiment of the present invention.

Referring to FIG. 10, the elastic part 300 included in the vibration output device 1000 according to an exemplary embodiment may contact a part of an upper surface of the yoke part 200. For example, the elastic part 300 included in the vibration output device 1000 may include a vibration part 310 and a fixing part 320, and the vibration part 310 of the elastic part 300 may be a yoke part. It may be in contact with at least a portion of the upper surface of the (200).

For example, when the yoke unit 200 includes the yoke plate 220, the vibrating unit 310 of the elastic unit 300 may contact at least a portion of an upper surface of the yoke plate 220.

For another example, when the yoke unit 200 does not include the yoke plate 220, the vibrator 310 of the elastic unit 300 may contact at least a portion of the upper surface of the yoke body 210. A detailed description of the yoke unit 200, the yoke body 210, and the yoke plate 220 has been described above with reference to FIG. 4.

Since the space 212 through which the elastic portion 300 may vibrate may be formed on the upper surface of the yoke portion 200, an elastic portion (ie, a portion of the upper surface of the yoke portion 200 except for the portion where the space 212 is formed) may be formed. A portion of 300) 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 portion (200). The vibration plate 400 may be exposed to the outside by passing through the opening 330 of the elastic part 300 in contact with the upper surface of the yoke portion 200 and in contact with the upper surface of the yoke portion 200.

11 illustrates a vibration output device 1000 including a housing 500 in accordance with one embodiment of the present invention.

According to an embodiment of the present invention, the vibration output device 1000 may include a housing 500.

The housing 500 may include at least one component of the vibration output device 1000 in the space therein. For example, the internal space of the housing 500 may include a coil 130, a magnetic circuit 100, a yoke unit 200, an elastic unit 300, or a combination thereof, but is not limited thereto.

According to one embodiment of the invention, the housing 500 and the elastic portion 300 may be coupled in various ways. For example, the elastic part 300 may be coupled to the housing 500 by being attached to an inner side surface of the housing 500. In addition, the elastic part 300 may be coupled to the housing 500 by curling the housing 500. For example, at least a portion of the upper portion of the housing 500 is curled in the direction of the elastic portion 300, so that the elastic portion 300 may be seated on the upper surface of the housing 500.

The elastic part 300 may be fixed by being coupled with the housing 500. For example, the fixing part 320 of the elastic part 300 may be coupled to the housing 500 to fix the elastic part 300 to the housing 500.

According to another embodiment of the present invention, the elastic part 300 may be integrally formed with the housing 500. For example, the elastic part 300 and the housing 500 may be integrally molded by a casting method using a metal member, but is not limited thereto.

12 and 13 illustrate a vibration output device 1000 according to an embodiment of the present invention mounted on the portable electronic device 2000.

12A and 12B, the vibration output device 1000 according to an embodiment of the present invention may be mounted inside the portable electronic device 2000. Here, the portable electronic device 2000 may include a Google glass 2000 of Google. The Google Glass 2000 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 2000 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 2000 may include a rechargeable battery unit 1050 capable of supplying energy, and support means 1060 assisting a user to wear like glasses.

According to an embodiment of the present disclosure, the Google glass 2000 may include a vibration output device 1000 including a magnetic circuit 100, a yoke unit 200, and an elastic unit 300. For example, the vibration output device 1000 may be installed at a portion where the Google glass 2000 and the bone conduction area such as a user are in contact with each other.

As illustrated in FIG. 13, a user may wear a Google glass 2000 and receive a sound signal such as a voice signal and music as a vibration signal through the vibration output device 1000 included in the Google Glass 2000.

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

Claims

Magnetic circuits for generating vibrations;

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

An elastic part vibrating in contact with at least a portion of an upper surface of the yoke part, wherein the elastic part includes at least two vibration parts vibrating according to the vibration of the magnetic circuit; And

A vibration plate contacting at least a portion of an upper surface of the yoke part and outputting the vibration to the outside according to the vibration of the yoke part;

Including,

The yoke portion:

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

A yoke plate provided on an upper surface of the yoke body to form a plurality of protruding surfaces on an upper surface of the yoke body and having a different shape according to the number of the vibration parts;

Including,

Vibration output device.
The method of claim 1,

There are two vibration parts,

The yoke plate,

Plate body; And

Two protrusions positioned outside the plate body and in contact with at least a portion of each vibrating unit;

Including,

Vibration output device.
The method of claim 1,

The vibration unit is three,

The yoke plate,

Plate body; And

Three protrusions positioned outside the plate body and in contact with at least a portion of each vibrating unit;

Including,

Vibration output device.
The method of claim 1,

Four vibration parts,

The yoke plate,

Plate body; And

Four protrusions positioned outside the plate body and in contact with at least a portion of each vibrating unit;

Including,

Vibration output device.
The method of claim 1,

The vibration output device,

A housing having a space formed therein by opening the upper and lower surfaces and closing the side surfaces;

More,

The elastic portion,

At least one fixing part fixing the elastic part to an inner side surface of the housing; And

At least one connection part connecting the fixing part and the vibration part;

Further comprising,

Vibration output device.
The method of claim 5, wherein

The vibrating portion is in contact with at least a portion of the upper surface of the yoke portion,

The vibration part is located between the fixing part and the vibration plate,

Vibration output device.
The method of claim 1,

The vibration output device,

A housing having a space formed therein by opening the upper and lower surfaces and closing the side surfaces;

A coil positioned inside the housing and receiving an AC signal provided from the outside;

More,

The magnetic circuit vibrates according to the change in the magnetic field provided by the coil,

The elastic portion is coupled to the housing by curling at least a portion of the upper portion of the housing,

Vibration output device.
The method of claim 1,

The upper surface of the yoke body is molded in the form of a circular plate,

The bottom of the yoke body is formed in the form of a cylinder attached to the center of the circular plate,

Vibration output device.
The method of claim 1,

The vibrating plate and the yoke portion are coupled by rivets,

Vibration output device.
The method of claim 1,

The magnetic circuit includes a magnet, a top plate, and a magnetic circuit guide,

Wherein the magnet, top plate, and yoke body are coupled by the magnetic circuit guide,

Vibration output device.
In the vibration output speaker that outputs sound using vibration,

A control unit for generating a vibration by controlling the vibration output unit; And

A vibration output unit generating vibrations under the control of the controller;

Including,

The vibration output unit:

Magnetic circuits for generating vibrations;

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

An elastic part vibrating in contact with at least a portion of an upper surface of the yoke part, wherein the elastic part includes at least two vibration parts vibrating according to the vibration of the magnetic circuit; And

A vibration plate contacting at least a portion of an upper surface of the yoke part and outputting the vibration to the outside according to the vibration of the yoke part;

Including,

The yoke portion:

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

A yoke plate provided on an upper surface of the yoke body to form a plurality of protruding surfaces on an upper surface of the yoke body and having a different shape according to the number of the vibration parts;

Including,

Vibration output speaker.