KR102264328B1 - A vibrator and electronic device including thereof - Google Patents

Abstract

The present invention includes an outer housing, an outer housing unit including a vibration output unit coupled to the outer housing, and a vibration generator, wherein the vibration generator is located between the outer housing and the vibration output unit, and the close contact elastic body vibrates inclined toward the magnet A generator and an electronic device including the same are provided.

Description

A vibrator and electronic device including thereof

The present invention relates to a vibration generator and an electronic device including the same, and more particularly, to a vibration generator that generates and transmits vibration in close contact with a vibration output unit of the electronic device, and an electronic device including the same.

A vibration motor is an electronic component that generates vibration by electromagnetic force between a stator and a vibrator, and is generally used for notifications of portable terminals and the like. The vibration motor can be divided into a rotary vibration motor and a linear vibration motor according to the movement method of the vibrator. Recently, the frequency of use of the linear vibration motor, which has advantages such as a fast reaction speed, less residual vibration, and miniaturization, is increasing. In such a linear vibration motor, the vibrator reciprocates linearly, such as vertically or horizontally.

Recently, electronic devices, such as portable terminals, are trending toward miniaturization and slimming. In addition, there is a recent trend of mounting a wider display on a large area of the front of a mobile terminal. In this situation, conventionally, a method has been attempted in which a speaker installed exposed on the front surface of the mobile terminal is removed, and a vibration generator is coupled to the rear surface of the display to transmit the vibration converted into sound to the display. As such a vibration generator, a linear vibration motor is typically used.

According to this trend, the demand for a vibration generator capable of generating a smaller and stronger vibration force and effectively transmitting the vibration to the display is increasing.

US 10-1514677 B1 US 10-1545144 B1

SUMMARY OF THE INVENTION An object of the present invention is to provide a vibration generator that is firmly and closely coupled to a vibration output unit to effectively transmit vibration, and an electronic device including the same.

Another object to be solved by the present invention is to provide a vibration generator capable of transmitting vibration to a vibration output unit to generate sound and simultaneously generating vibration for notification, and an electronic device including the same.

The vibration generator of the present invention for solving the above problems includes a fixed part, a transmission medium spaced apart from the fixing part, a tight elastic body connecting the fixing part and the transmission medium, a coil coupled to the fixing part, and the high A magnet coupling part positioned between the government and the transmission medium, at least a portion of which is positioned opposite the coil and coupled to the magnet coupling part, and a vibrating elastic body connecting the transmission medium and the magnet coupling part, the magnet and The magnet coupling part reciprocates in a first direction by the electromagnetic force generated between the magnet and the coil, and the transmission medium is movable in the first direction with respect to the fixed part, and the adhesion elastic body is the transmission medium When is moved in the first direction, the shape may be deformed to generate a restoring force.

In one embodiment of the present invention, the lower portion of the delivery medium may be formed narrower than the upper portion.

In one embodiment of the present invention, the upper end of the transmission medium may be formed with a contact plate orthogonal to the vibration direction.

In one embodiment of the present invention, one end of the adhesive elastic body may be coupled to the central portion of the transmission medium, and the other end of the adhesive elastic body may be coupled to the fixing part.

In one embodiment of the present invention, one end of the vibrating elastic body may be coupled to the lower end of the transmission medium, and the other end of the vibrating elastic body may be coupled to the magnet coupling part.

In one embodiment of the present invention, the other end of the vibrating elastic body is coupled with a protrusion extending in the first direction from the upper end of the magnet coupling part, and the upper end of the protrusion has a predetermined amplitude in the first direction. It can reciprocate so as to be adjacent to the adhesive elastic body.

In an embodiment of the present invention, the adhesion elastic body and the vibrating elastic body may be disposed to be spaced apart from each other by a predetermined distance.

In an embodiment of the present invention, the adhesion elastic body may be positioned to be adjacent to the transmission medium with respect to the first direction, and the vibration elastic body may be positioned to be adjacent to the coil with respect to the first direction.

In one embodiment of the present invention, the adhesion elastic body and the vibrating elastic body may be located spaced apart.

In one embodiment of the present invention, the delivery medium may be formed of a flexible material.

In one embodiment of the present invention, the fixing portion may surround at least a portion of the delivery medium.

In one embodiment of the present invention, the inner edge portion of the fixing portion may be formed to be recessed downward so that the magnet coupling portion can reciprocate in the first direction.

In one embodiment of the present invention, the fixing part may form an internal space.

In one embodiment of the present invention, the fixing part may have an open top.

In one embodiment of the present invention, it further comprises a yoke coupled to the magnet and a weight coupled to the magnet, the coil, the magnet and the yoke may be located in the receiving space.

In one embodiment of the present invention, the fixing portion may surround the magnet coupling portion.

In one embodiment of the present invention, the fixing portion may have an upper portion and a lower portion open.

In one embodiment of the present invention, the fixing portion may surround the side of the magnet coupling portion.

In one embodiment of the present invention, the magnet coupling portion may form a receiving space with an open lower portion, and the coil may be spaced apart from the magnet coupling portion.

In one embodiment of the present invention, the upper end of the magnet coupling portion may further include a protrusion formed to protrude in the first direction.

In one embodiment of the present invention, further comprising a yoke coupled to the magnet, the yoke may be located inside the coil.

In one embodiment of the present invention, it further includes a weight body coupled to the magnet, the weight body may be surrounded by the yoke and the magnet.

In one embodiment of the present invention, the coil may be wound to form a coil inner space, and at least a portion of the magnet may be located inside the coil inner space.

In one embodiment of the present invention, it further comprises a stopper coupled to the fixing portion, the stopper may be located lower than the upper surface of the delivery medium.

In one embodiment of the present invention, it may further include a weight coupled to the magnet.

In addition, the electronic device of the present invention for solving the above problems is an external housing, an external housing part and a fixing part including a vibration output part that is combined with the external housing to form an internal space of the device, and is spaced apart from the fixing part. A transmission medium, a tight elastic body connecting the fixing part and the transmission medium, a coil coupled to the fixing part, a magnet coupling part located between the fixing part and the transmission medium, at least a part of the magnet is positioned to face the coil A magnet coupled to the coupling unit and a vibration generator including a vibration elastic body connecting the transmission medium and the magnet coupling unit, wherein the magnet and the magnet coupling unit are first formed by electromagnetic force generated between the magnet and the coil. direction, and the transmission medium can move in the first direction with respect to the fixed part, and when the transmission medium moves in the first direction, the adhesion elastic body is deformed to generate a restoring force, and the The vibration generator may be located in the device internal space, the transmission medium may be in close contact with the vibration output unit, and the adhesion elastic body may be inclined toward the magnet.

In an embodiment of the present invention, the outer housing unit may further include a bracket formed in the outer housing to face the vibration output unit, and the fixing unit may be coupled to the bracket.

In one embodiment of the present invention, a bracket hole is formed in the bracket, at least a part of the fixing part is inserted into the bracket hole, and the fixing part and the bracket may be screwed together.

In one embodiment of the present invention, the fixing portion may be in close contact with the inner surface of the outer housing facing the vibration output unit.

In an embodiment of the present invention, the vibration generator may further include a stopper that protrudes from the fixing unit toward the vibration output unit and is spaced apart from the vibration output unit.

In an embodiment of the present invention, the vibration output unit may output at least one of a vibration and a screen.

In one embodiment of the present invention, the vibration generator may further include a weight coupled to the magnet.

In one embodiment of the present invention, the vibration generator may further include a yoke coupled to the magnet.

The vibration generator according to an embodiment of the present invention may be firmly and closely coupled to the vibration output unit to effectively transmit vibration.

In addition, the vibration generator according to an embodiment of the present invention may transmit vibration to the vibration output unit to generate sound and simultaneously generate vibration for notification.

1 is a cross-sectional view showing a vibration generator according to an embodiment of the present invention.
2 is a cross-sectional view showing a vibration generator according to another embodiment of the present invention.
3A and 3B are cross-sectional views illustrating an electronic device according to a first embodiment of the present invention.
4A and 4B are enlarged cross-sectional views of the S region of FIG. 3B.
5A and 5B are cross-sectional views illustrating electronic devices according to second and third exemplary embodiments of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that adding a detailed description of a technique or configuration already known in the relevant field may make the gist of the present invention unclear, some of these will be omitted from the detailed description. In addition, the terms used in this specification are terms used to properly express the embodiments of the present invention, which may vary according to a person or custom in the relevant field. Accordingly, definitions of these terms should be made based on the content throughout this specification.

The terminology used herein is for the purpose of referring to specific embodiments only, and is not intended to limit the invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of 'comprising' specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

Hereinafter, a vibration generator 100 according to an embodiment of the present invention will be described with reference to FIG. 1 .

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

Vibration generator 100 according to an embodiment of the present invention has a fixed part 110, a transmission medium 120, a close elastic body 130, a coil 140, a magnet 150, a yoke 160, a magnet coupling part. 170 , and a vibrating elastic body 180 and a weight body 190 .

The fixing part 110 may have an open top. Accordingly, the fixing unit 110 may form an internal space S1 as shown in FIG. 1 , and in the internal space S1, at least a portion of the transmission medium 120, a coil 140, a magnet ( 150), the yoke 160, the magnet coupling part 170 and the weight body 190 are positioned.

The fixing unit 110 may be formed to surround at least a portion of the transmission medium 120 . In addition, it may be formed to surround the magnet coupling portion 170 . At this time, the fixing part 110 is positioned to be spaced apart from the magnet coupling part 170 .

The inner edge portion of the fixing part 110 may be formed to be depressed downward so that the magnet coupling part 170 can reciprocate in the first direction. The above structure provides a space in which the magnet coupling part 170 can reciprocate without contacting the fixing part 110 when the magnet coupling part 170 reciprocates in the first direction.

In addition, the fixing part 110 is a structure supporting the adhesion elastic body 130 , and surrounds the magnet coupling part 170 , and is formed to be spaced apart from the magnet coupling part 170 . The structure of the fixing part 110 serves to protect the magnet coupling part 170 by preventing damage caused by external impact.

On the other hand, the fixing part 110 as a modification other than that shown in FIG. 1 may be formed to have upper and lower open portions, and thus to support the adhesion elastic body 130 .

The fixing unit 110 may have a structure in which a plurality of pillars are positioned to surround the magnet coupling unit 170 . As an example, the fixing unit 110 may be formed of any one of various types of sidewall structures such as a plurality of pillar structures and rings.

Since the plurality of pillar structures are surrounded by a plurality of pillars, the pillars may be in the form of supporting the outer edge of the adhesive elastic body 130 .

In addition, various types of side wall structures such as the above-described ring may support the outer edge portion of the adhesive elastic body 130 .

The fixing part 110 includes a housing 111 and a stopper 115 .

The housing 111 may have a hollow shape in which an upper portion is opened and an inner space S1 is formed. On the other hand, the housing 111 according to this is at least a part of the transmission medium 120 in the inner space S1, the coil 140, the magnet 150, the yoke 160, the magnet coupling portion 170 and the weight body 190. ) can be accommodated.

On the other hand, the housing 111 may have a configuration in which a plurality of pillars are positioned to surround the magnet coupling part 170 as a modification.

A stopper 115 is coupled to the upper end of the housing 111 .

The stopper 115 is coupled to the fixing unit 110 . Specifically, the stopper 115 may be coupled to the upper end of the housing 111 . At least a portion of the adhesive elastic body 130 may be fixed between the housing 111 and the stopper 115 .

In addition, the stopper 115 is located lower than the upper surface of the transfer medium (120). The reason for the positional relationship between the stopper 115 and the transfer medium 120 will be described in detail in the electronic device to be described later.

The transmission medium 120 may be positioned to be spaced apart from the fixing unit 110 in the left-right direction and the vertical direction as shown in FIG. 1 .

Shapely, the transmission medium 120 may be formed to be narrower at the bottom than at the top. Illustratively, the delivery medium 120 may be formed to be narrower in width from the top to the bottom.

Formally, a contact plate orthogonal to the first direction, which is the vibration direction, may be formed on the upper end of the transmission medium 120 .

In addition, the transfer medium 120 may move in the first direction with respect to the fixed part (110). Here, the first direction corresponds to the vertical direction (= vibration direction) with reference to FIG. 1 .

Meanwhile, in some cases, the transmission medium 120 may be formed of a flexible material.

One end of the adhesive elastic body 130 is coupled to the central portion of the transmission medium 120 , and one end of the vibrating elastic body 180 is coupled to the lower end of the transmission medium 120 .

The above-described structure provides a sufficient space in which the vibrating elastic body 180 can be deformed when the magnet coupling part 170 reciprocates in the first direction.

In addition, the transmission medium 120 may have characteristics in material and shape in order to more abundantly transmit the sound generated due to vibration. Therefore, it is possible for the transmission medium 120 to be closely coupled to the vibration output unit in an electronic device to be described later.

The adhesive elastic body 130 connects the fixing part 110 and the transmission medium 120 . To this end, one end of the elastic contact body 130 is coupled to the central portion of the transmission medium 120 , and the other end of the elastic body 130 is coupled to the fixing unit 110 .

In addition, the adhesion elastic body 130 is positioned to be adjacent to the transmission medium 120 with respect to the first direction. Accordingly, when the transmission medium 120 moves in the first direction, the elastic body 130 is deformed to generate a restoring force.

The coil 140 is coupled to the fixing unit 110 . Specifically, the coil 140 may be coupled to the inner lower surface of the fixing unit 110 . In addition, the coil 140 is wound inside the coil inner space.

Also, the coil 140 is spaced apart from the magnet coupling unit 170 . Specifically, the coil 140 is surrounded by the magnet coupling unit 170 .

Looking at the relationship with the peripheral components in more detail, the coil 140 is positioned between the magnet 150 or the yoke 160 and the magnet coupling unit 170 . In this case, the coil 140 is preferably disposed to be spaced apart from the magnet 150 and the yoke 160 .

At least a portion of the magnet 150 may be positioned inside the coil 140 .

At least a portion of the magnet 150 is positioned to face the coil 140 and is coupled to the magnet coupling unit 170 . Specifically, the upper portion of the magnet 150 is coupled to the inner upper surface of the magnet coupling portion (170).

Also, the magnet 150 may be disposed to surround the weight body 190 . In this case, the magnet 150 may be coupled or spaced apart from the weight body 190 .

The yoke 160 is coupled to the magnet 150 . Accordingly, the yoke 160 is positioned further lower than the magnet 150 .

In addition, the yoke 160 is positioned to face the coil 140 . More specifically, the yoke 160 is located inside the coil 140 .

In addition, the yoke 160 may be disposed to surround the weight 190 like the magnet 150 . Even at this time, the yoke 160 may be coupled or spaced apart from the weight body 190 . Here, the side ends of the yoke 160 and the magnet 150 may form the same plane.

The yoke 160 supports the interaction between the coil 140 and the magnet 150 to occur smoothly.

The magnet coupling unit 170 is coupled to the magnet 150 . In addition, the magnet coupling unit 170 is positioned between the fixing unit 110 and the transmission medium 120 . Specifically, the magnet coupling unit 170 may form an internal space S1 having an open lower portion. The coil 140 , the magnet 150 , the yoke 160 and the weight body 190 are positioned in the inner space S1 of the magnet coupling part 170 .

In particular, a protrusion 171 extending in the first direction is protruded from the upper end of the magnet coupling unit 170 . Accordingly, the upper end of the magnet coupling portion 170 and the upper end of the protrusion 171 have a predetermined height.

Here, the receiving space A formed by the protrusion 171 extending from the upper end of the magnet coupling part 170 and the vibrating elastic body 180 is formed. The accommodating space (A) is a space in which the magnet coupling part 170 can reciprocate in the first direction.

The other end of the vibrating elastic body 180 is coupled to the protrusion 171 . The protrusion 171 secures a space in which the magnet coupling part 170 can reciprocate in the first direction due to the interaction between the coil 140 and the magnet 150 . In addition, the upper end of the protrusion 171 reciprocates so as to be adjacent to the adhesion elastic body 130 while having a predetermined amplitude in the first direction.

The magnet coupling unit 170 having such a structure may be positioned to surround the coil 140 in a state in which it does not vibrate in the vertical direction. However, exceptionally, when the magnet coupling unit 170 moves upward, the magnet coupling unit 170 surrounds at least a portion of the coil 140 .

The aforementioned magnet 150 and the magnet coupling unit 170 reciprocate in the first direction by the electromagnetic force generated between the magnet 150 and the coil 140 . When the magnet 150 and the magnet coupling part 170 reciprocate in the first direction, the vibrating elastic body 180 deforms and supports the magnet coupling part 170 .

The vibrating elastic body 180 connects the transmission medium 120 and the magnet coupling unit 170 . Specifically, one end of the vibrating elastic body 180 is coupled to the lower end of the transmission medium 120 , and the other end of the vibrating elastic body 180 is coupled to the magnet coupling unit 170 . Specifically, the other end of the vibrating elastic body 180 is coupled to the protrusion 171 extending in the first direction from the upper end of the magnet coupling portion (170).

At this time, the vibrating elastic body 180 is positioned so as to be adjacent to the coil 140 in the first direction rather than the adhesion elastic body 130 . The adhesive elastic body 130 and the vibrating elastic body 180 are disposed to be spaced apart from each other by a predetermined distance. That is, the vibrating elastic body 180 is located below the adhesion elastic body 130 as shown in FIG. 1 .

The weight body 190 is coupled to the magnet 150 . Specifically, the weight body 190 is coupled to the inner central portion of the magnet coupling unit 170 . In addition, the weight body 190 may be surrounded by the yoke 160 and the magnet 150 . In this case, the weight body 190 may be coupled to the yoke 160 and the magnet 150 .

Additionally, the lower end of the weight body 190 may form the same plane as the lower end of the yoke 160 .

Hereinafter, the vibration generator 100 according to another embodiment of the present invention will be described with reference to FIG. 2 , but components other than the one embodiment will be intensively described.

2 is a cross-sectional view showing a vibration generator according to another embodiment of the present invention.

Vibration generator 100 according to another embodiment of the present invention is a fixed part 110, a transmission medium 120, a close elastic body 130, a coil 140, a magnet 150, a yoke 160, a magnet coupling part. 170 and a vibrating elastic body 180 .

That is, as shown in FIG. 2 , the vibration generator 100 according to another embodiment of the present invention does not include the weight 190 of the vibration generator 100 according to the embodiment of the present invention.

Since the vibration generator 100 according to another embodiment does not have a weight body 190 , it can generate vibrations having a higher vibration frequency than the vibration generator 100 according to an embodiment.

Hereinafter, the electronic device 300 according to the first embodiment of the present invention will be described with reference to FIGS. 3A and 3B , but components other than the aforementioned vibration generator 100 will be described in detail. do.

3A and 3B are cross-sectional views illustrating an electronic device according to a first embodiment of the present invention.

The electronic device 300 according to the first embodiment of the present invention includes a vibration generator 100 and an external housing unit 200 .

Referring to FIGS. 3A and 3B , the outer housing 200 may form an internal space S2 of the device. In addition, the outer housing 200 may have a shape in which the upper portion is opened, but is not limited thereto.

The outer housing unit 200 includes an outer housing 210 , a bracket 220 , and a vibration output unit 230 .

The outer housing 210 may have a hollow shape with an open top. A device internal space S2 is formed inside the outer housing 210 . The device inner space S2 may include a bracket 220 connecting the inner surfaces of the outer housing 210 opposite to each other.

The bracket 220 may face the vibration output unit 230 to partition the inside of the outer housing 210 . The position of the bracket 220 is preferably set in consideration of the height of the vibration generator 100 .

The vibration output unit 230 is coupled to the outer housing unit 200 . For this purpose, the vibration output unit 230 covers the upper portion of the outer housing unit 200 . Specifically, the vibration output unit 230 is disposed parallel to the bracket 220 while covering the open upper portion of the outer housing 210 .

Such a vibration output unit 230 may be a part of the outer case of the electronic device. Also, the vibration output unit 230 may be a display device of an electronic device. Specifically, the vibration output unit 230 may be either an OLED module or an LCD module.

The vibration output unit 230 may receive vibration from the vibration generator 100 . The vibration output unit 230 may generate sound while vibrating itself by the received vibration. The vibration transmitted by the vibration generator 100 may be converted into sound.

3A shows a state in which the upper end of the vibration output unit 230 does not coincide with the upper end of the outer housing 210 and the vibration output unit 230 further protrudes to the outside. This state is before the vibration output unit 230 is completely coupled to the outer housing 210 .

The vibration generator 100 is located in the device inner space S2 between the outer housing 210 and the vibration output unit 230 included in the outer housing unit 200 .

Specifically, the upper end of the transmission medium 120 is in close contact with the vibration output unit (230). In addition, the lower end of the fixing unit 110 is in close contact with the bracket 220 facing the vibration output unit 230 .

3A shows a state in which the adhesion elastic body 130 and the vibration output unit 230 are parallel to each other.

3B shows a state in which the upper end of the vibration output unit 230 coincides with the upper end of the outer housing 210 . In this state, the vibration output unit 230 is still fully coupled to the outer housing 210 .

Referring to (b) of FIG. 3 , the adhesion elastic body 130 is inclined toward the magnet 150 .

Specifically, when an external force is applied to the vibration output unit 230 in FIG. 3 (a) to completely couple the vibration output unit 230 to the outer housing 210, the transmission medium 120 is pushed by the vibration output unit 230. will move to the bottom. And the adhesion elastic body 130 is inclined toward the magnet (150).

When the adhesive elastic body 130 is inclined toward the magnet 150, the adhesive elastic body 130 generates a restoring force to be restored to a flat state as shown in FIG. 3A. This restoring force maintains the transmission medium 120 in close contact with the vibration output unit 230 . Due to this restoring force, the transmission medium 120 can be maintained in close contact with the vibration output unit 230 without a separate adhesive medium. For this reason, the vibration generated by the vibration generator 100 can be more efficiently transmitted to the vibration output unit 230 through the transmission medium 120 .

The stopper 115 protrudes from the fixing unit 110 in the direction of the vibration output unit 230 . Therefore, the stopper 115 restricts the vibration output unit 230 from moving further lower than the top of the stopper 115 . That is, the stopper 115 prevents the vibration output unit 230 from moving to the lower portion of the stopper 115 through the above structure, thereby preventing damage to the vibration output unit 230 or the vibration generator 100 due to external force. It can be prevented.

4A and 4B are enlarged cross-sectional views of the S region of FIG. 3B. In (a) and (b) of Figure 4, the magnet 150, the yoke 160, the magnet coupling portion 170 and the weight body 190 by the interaction of the coil 140 and the magnet 150 in the vertical direction It is shown moving to

Specifically, (a) of FIG. 4 shows the magnet 150, the yoke 160, the magnet coupling part 170 and the weight 190 that have moved downward, and (b) of FIG. 4 is that has moved upward. The magnet 150 , the yoke 160 , the magnet coupling part 170 and the weight body 190 are shown.

As the magnet 150 , the yoke 160 , the magnet coupling part 170 and the weight body 190 move in the vertical direction, the vibration is made in the elastic body 180 according to the amplitude. However, at this time, the adhesion elastic body 130 is not deformed, and the state inclined toward the magnet 150 is maintained. And the adhesion elastic body 130 generates a restoring force upwards, so that the transmission medium 120 is in close contact with the vibration output unit 230 .

Hereinafter, the electronic devices 300' and 300'' according to the second and third embodiments of the present invention will be described with reference to FIGS. 5A and 5B, but with respect to components different from those of the first embodiment. focus on the explanation.

5A is a cross-sectional view illustrating an electronic device according to a second embodiment of the present invention.

The electronic device 300 ′ according to the second embodiment of the present invention is different in that there is no bracket 220 that was a component of the electronic device 300 according to the first embodiment.

The outer housing unit 200 includes the outer housing 210 and the vibration output unit 230, and since it is the same as described in the first embodiment, a detailed description thereof will be omitted.

The upper end of the transmission medium 120 is in close contact with the vibration output unit 230 as in the first embodiment. However, the lower end of the transmission medium 120 is in close contact with the inner surface of the outer housing 210 facing the vibration output unit 230 as shown in Fig. 4 (a).

5B is a cross-sectional view illustrating an electronic device according to a third embodiment of the present invention.

Compared with the electronic device 300 according to the first embodiment, the electronic device 300 ″ according to the third embodiment of the present invention has a shape of the bracket 220 , the extension part 215 , and the bracket hole 225 . ) and the screw 240 is different in that it is further formed.

The outer housing unit 200 includes an outer housing 210 , a bracket 220 , a vibration output unit 230 , and a screw 240 .

Referring to FIG. 5B , extension parts 215 are formed on both sides of the housing 111 . The extension part 215 extends from both sides of the housing 111 and is formed to be parallel to the vibration output part 230 .

The bracket 220 extends in an inward direction parallel to the vibration output unit 230 from both sides of the outer housing 210 . Accordingly, a bracket hole 225 is formed in the central portion of the bracket 220 , and the vibration generator 100 is inserted into the bracket hole 225 .

Specifically, the fixing part 110 of the vibration generator 100 is inserted into the bracket hole 225 formed in the central part of the bracket 220 and is fixed by the screw 240 . To this end, the extension part 215 is in close contact with the bracket 220 , and the outer surface of the fixing part 110 comes into contact with the bracket 220 .

The upper end of the transmission medium 120 is in close contact with the vibration output unit 230 as in the first embodiment. However, the lower portion of the extension portion 215 is in close contact with the bracket 220 by the screw 240 coupling the bracket 220 and the close extension portion 215 .

The vibration generator of the present invention and the electronic device including the same according to the above description have the advantage of providing a sound while implementing a display.

In the above, embodiments of the vibration generator of the present invention and an electronic device including the same have been described. The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and variations will be possible from the point of view of those of ordinary skill in the art to which the present invention pertains. Accordingly, the scope of the present invention should be defined not only by the claims of the present specification, but also by those claims and their equivalents.

100: vibration generator
110: fixed part
111: housing
115: stopper
120: transmission medium
130: adhesion elastic body
140: coil
150: magnet
160: York
170: magnet coupling part
171: protrusion
180: vibrating elastic body
190: weight body
200: outer housing part
210: outer housing
215: extension
220: bracket
225: bracket hole
230: vibration output unit
240: screw
300: electronic device

Claims (33)

fixed part;
a transmission medium positioned to be spaced apart from the fixing part;
a close-fitting elastic body connecting the fixing part and the transmission medium;
a coil coupled to the fixing part;
a magnet coupling part positioned between the fixing part and the transmission medium;
a magnet at least a portion of which is positioned to face the coil and coupled to the magnet coupling part; and
and a vibrating elastic body connecting the transmission medium and the magnet coupling part,
The magnet and the magnet coupling unit reciprocate in a first direction by electromagnetic force generated between the magnet and the coil,
The vibrating elastic body is coupled to a protrusion extending in the first direction from the upper end of the magnet coupling part,
The transmission medium may move in the first direction with respect to the fixed part,
When the transmission medium moves in the first direction, the adhesion elastic body is deformed in shape to generate a restoring force.
According to claim 1,
The transmission medium is a vibration generator in which the lower part is formed narrower than the upper part.
3. The method of claim 2,
The upper end of the transmission medium is a vibration generator in which a contact plate orthogonal to the first direction is formed.
3. The method of claim 2,
One end of the adhesive elastic body is coupled to the central portion of the transmission medium,
The other end of the adhesion elastic body is a vibration generator coupled to the fixing portion.
3. The method of claim 2,
One end of the vibrating elastic body is coupled to the lower end of the transmission medium,
The other end of the vibrating elastic body is a vibration generator coupled to the magnet coupling portion.
3. The method of claim 2,
The upper end of the protrusion has a predetermined amplitude in the first direction and the vibration generator reciprocates so as to be adjacent to the elastic body.
6. The method according to claim 4 or 5,
A vibration generator in which the adhesion elastic body and the vibration elastic body are spaced apart from each other by a predetermined distance.
According to claim 1,
The adhesion elastic body is positioned to be adjacent to the transmission medium with respect to the first direction,
The vibration generator is positioned to be adjacent to the coil with respect to the first direction.
9. The method of claim 8,
A vibration generator in which the adhesion elastic body and the vibration elastic body are spaced apart from each other.
3. The method of claim 2,
The transmission medium is a vibration generator formed of a flexible material.
According to claim 1,
The fixing part is a vibration generator surrounding at least a portion of the transmission medium.
12. The method of claim 11,
A vibration generator in which the inner edge portion of the fixing unit is recessed downward so that the magnet coupling unit can reciprocate in the first direction.
12. The method of claim 11,
The fixing part is a vibration generator that forms an internal space.
14. The method of claim 13,
The fixing part is a vibration generator having an open top.
14. The method of claim 13,
The magnet coupling portion forms an open receiving space at the bottom,
a yoke coupled to the magnet; and
Further comprising a weight body coupled to the magnet,
A vibration generator in which the coil, the magnet and the yoke are located in the accommodation space.
16. The method of claim 15,
The fixing part is a vibration generator surrounding the magnet coupling part.
15. The method of claim 14,
The fixing part is a vibration generator in which the upper and lower portions are open.
18. The method of claim 17,
The fixing part is a vibration generator surrounding the side of the magnet coupling part.
According to claim 1,
The magnet coupling portion forms an open receiving space at the bottom,
The coil is a vibration generator spaced apart from the magnet coupling portion.
20. The method of claim 19,
The vibration generator further comprising a protrusion formed to protrude in the first direction at an upper end of the magnet coupling part.
According to claim 1,
Further comprising a yoke coupled to the magnet,
The yoke is a vibration generator located inside the coil.
22. The method of claim 21,
Further comprising a weight body coupled to the magnet,
The weight is a vibration generator surrounded by the yoke and the magnet.
23. The method of claim 22,
The coil is wound to form a coil inner space,
A vibration generator in which at least a portion of the magnet is located inside the coil inner space.
According to claim 1,
Further comprising a stopper coupled to the fixing part,
The stopper is a vibration generator located below the upper surface of the transmission medium.
According to claim 1,
The vibration generator further comprising a weight coupled to the magnet.
an external housing unit comprising an external housing, a vibration output unit coupled to the external housing to form an internal space of the device; and
A fixing part, a transmission medium spaced apart from the fixing part, a tight elastic body connecting the fixing part and the transmission medium, a coil coupled to the fixing part, a magnet coupling part located between the fixing part and the transmission medium, At least a portion of the vibration generator including a magnet positioned to face the coil and coupled to the magnet coupling part, and a vibrating elastic body connecting the transmission medium and the magnet coupling part,
The magnet and the magnet coupling unit reciprocate in a first direction by electromagnetic force generated between the magnet and the coil,
The vibrating elastic body is coupled to a protrusion extending in the first direction from the upper end of the magnet coupling part, and the transmission medium is movable in the first direction with respect to the fixing part,
When the transmission medium moves in the first direction, the adhesion elastic body is deformed to generate a restoring force,
The vibration generator is located in the device internal space,
The transmission medium is in close contact with the vibration output unit,
The adhesive elastic body is inclined toward the magnet.
27. The method of claim 26,
The outer housing unit further includes a bracket formed inside the outer housing to face the vibration output unit,
The fixing part is an electronic device coupled to the bracket.
28. The method of claim 27,
A bracket hole is formed in the bracket,
At least a part of the fixing part is inserted into the bracket hole,
The fixing part and the bracket are screw-coupled to the electronic device.
27. The method of claim 26,
The fixing unit is in close contact with the inner surface of the outer housing facing the vibration output unit.
27. The method of claim 26,
The vibration generator is
and a stopper protruding from the fixing part toward the vibration output part and spaced apart from the vibration output part.
27. The method of claim 26,
The vibration output unit is an electronic device that outputs at least one of a vibration and a screen.
27. The method of claim 26,
The vibration generator further includes a weight coupled to the magnet.
27. The method of claim 26,
The vibration generator further includes a yoke coupled to the magnet.

Images