KR20150091701A - Linear vibration motor and manufacturing method thereof - Google Patents

Linear vibration motor and manufacturing method thereof Download PDF

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Publication number
KR20150091701A
KR20150091701A KR1020140012230A KR20140012230A KR20150091701A KR 20150091701 A KR20150091701 A KR 20150091701A KR 1020140012230 A KR1020140012230 A KR 1020140012230A KR 20140012230 A KR20140012230 A KR 20140012230A KR 20150091701 A KR20150091701 A KR 20150091701A
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KR
South Korea
Prior art keywords
opening
elastic body
case
housing
plate portion
Prior art date
Application number
KR1020140012230A
Other languages
Korean (ko)
Inventor
강승렬
윤금영
Original Assignee
(주)파트론
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)파트론 filed Critical (주)파트론
Priority to KR1020140012230A priority Critical patent/KR20150091701A/en
Priority to PCT/KR2015/000733 priority patent/WO2015115755A1/en
Publication of KR20150091701A publication Critical patent/KR20150091701A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Abstract

Disclosed is a linear vibration motor. The linear vibration motor according to the present invention includes a housing which forms an inner space, a stator which is combined with the housing, a vibrator which vibrates by electromagnetic force between the stator and the vibrator, and an elastic body whose one end is combined with the upper side of the housing and the other end is combined with the vibrator. A first opening part is formed on one side of the housing. A second opening part is formed on a position facing the first opening part in the elastic body.

Description

Technical Field [0001] The present invention relates to a linear vibration motor and a manufacturing method thereof,

The present invention relates to a linear vibration motor and a method of manufacturing the same.

BACKGROUND ART A vibration motor is an electronic component that generates vibration by electromagnetic force between a stator and a vibrator, and is generally used for notification of a portable terminal or the like. The vibration motor can be divided into a rotary vibration motor and a linear vibration motor according to the motion method of the vibrator. Recently, a linear vibration motor having advantages such as a high reaction speed, low vibration and small size is mainly used. In the linear vibration motor, the elastic body is coupled to the housing and the vibrator, so that the vibrator performs a linear reciprocating motion and efficiently generates vibration. Such a linear vibration motor is disclosed in Korean Patent Registration No. 10-1055562 (Published on Aug. 08, 2011).

BACKGROUND ART [0002] With the recent miniaturization and thinning of devices such as portable terminals equipped with linear vibration motors, miniaturization of linear vibration motors is also progressing. Accordingly, high accuracy is required in assembling the linear vibration motor.

Particularly, in joining the elastic body and the housing, it is very difficult to accurately join the joining point of the elastic body with the inside of the housing. The combination of the elastic body and the housing is essential for improving the durability of the linear vibration motor and maintaining the resonance frequency constant. Accordingly, there is a growing demand for a structure and a method for securing accuracy in combining an elastic body and a housing.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a linear vibration motor having a structure capable of accurately coupling a coupling point of an elastic body to a housing by a simple method and a method of manufacturing the same.

Another problem to be solved by the present invention is to provide a linear vibration motor having a structure capable of improving the assembling performance of a linear vibration motor, simplifying the assembling process, and reducing the defective rate, and a method of manufacturing the same.

According to an aspect of the present invention, there is provided a linear vibration motor including a housing defining an inner space, a stator coupled with the housing, a vibrator vibrating due to an electromagnetic force generated between the stator and the housing, And the other end is coupled to the vibrator. A first opening is formed on one surface of the housing, and a second opening is formed in the elastic body at a position facing the first opening.

In one embodiment of the present invention, the elastic body is a leaf spring including an inner plate portion, an outer plate portion, and a connecting portion connecting the inner plate portion and the outer plate portion, and the second opening portion may be formed in the inner plate portion.

In one embodiment of the present invention, the inner plate portion is coupled to one surface of the housing, and the outer plate portion can be coupled to the vibrator.

In one embodiment of the present invention, the outer plate portion is coupled to one surface of the housing, and the inner plate portion can be coupled to the vibrator.

In an embodiment of the present invention, the first opening and the second opening may be formed in the same shape.

In an embodiment of the present invention, the first opening may be formed in a polygonal shape.

In one embodiment of the present invention, the first opening may be formed in a shape having a directionality when rotating on one side of the housing.

In one embodiment of the present invention, the housing may include a case having a side surface extending from one side of the housing and the side surface extending from the one side, and a bracket opposed to the one side of the housing.

According to another aspect of the present invention, there is provided a method of manufacturing a linear vibration motor, comprising the steps of: preparing a case having a first opening formed on one surface thereof; preparing an elastic body having a second opening; And adjusting the position of the case and the elastic body by inserting the second opening, and coupling the case and the elastic body.

In an embodiment of the present invention, the first opening and the second opening may be formed in the same shape.

In an embodiment of the present invention, the first opening may be formed in a polygonal shape.

In one embodiment of the present invention, the first opening may be formed into a shape having a directionality upon rotation on one surface of the case.

In one embodiment of the present invention, the array pin may have a cross-sectional shape corresponding to the shape of the first opening.

In one embodiment of the present invention, the step of joining the case and the elastic body may be performed by welding the inner side of the case and the elastic body.

In one embodiment of the present invention, the method may further include coupling the elastic body and the vibrator, coupling the stator to generate electromagnetic force with the vibrator, and engaging the bracket to face one surface of the case have.

The linear vibration motor and the method of manufacturing the same according to an embodiment of the present invention can accurately couple the coupling point of the elastic body to the housing by a simple method.

Further, the linear vibration motor and the method of manufacturing the same according to an embodiment of the present invention can improve the assemblability, simplify the assembling process, and reduce the defect rate.

1 is a cross-sectional view of a linear vibration motor according to an embodiment of the present invention.
2 is an exploded perspective view of a linear vibration motor according to an embodiment of the present invention.
3 is a plan view of a case according to an embodiment of the present invention.
4 is a plan view of an elastic body according to an embodiment of the present invention.
5 is a perspective plan view showing a coupling relationship between a case and an elastic body according to an embodiment of the present invention.
6 is a cross-sectional view of a linear vibration motor according to another embodiment of the present invention.
7 is an exploded perspective view of a linear vibration motor according to an embodiment of the present invention.
8 is a plan view of a case according to another embodiment of the present invention.
9 is a plan view of an elastic body according to another embodiment of the present invention.
10 is a perspective plan view showing a coupling relation between a case and an elastic body according to another embodiment of the present invention.
11 is a flowchart of a method of manufacturing a linear vibration motor according to an embodiment of the present invention.
12 is a perspective view for explaining a step of inserting an elastic body into the case.
13 is a perspective view showing a state in which the case and the elastic body are coupled.

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 judged that it is possible to make the gist of the present invention obscure by adding a detailed description of a technique or configuration already known in the field, it is omitted from the detailed description. In addition, terms used in the present specification are terms used to appropriately express the embodiments of the present invention, which may vary depending on the person or custom in the relevant field. Therefore, the definitions of these terms should be based on the contents throughout this specification.

Hereinafter, a linear vibration motor according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 attached hereto.

1 is a cross-sectional view of a linear vibration motor according to an embodiment of the present invention. 2 is an exploded perspective view of a linear vibration motor according to an embodiment of the present invention. 3 is a plan view of a case according to an embodiment of the present invention. 4 is a plan view of an elastic body according to an embodiment of the present invention. 5 is a perspective plan view showing a coupling relationship between a case and an elastic body according to an embodiment of the present invention.

1 and 2, the linear vibration motor includes a housing 100, a stator, a vibrator 300, and an elastic body 400.

Here, the housing 100 forms an inner space. The stator, the vibrator 300, and the elastic body 400 are accommodated in the inner space. The housing 100 may be formed in a cylindrical shape. That is, the housing 100 may have a top surface, a bottom surface facing the top surface, and side surfaces extending from the top surface to the bottom surface.

Specifically, the housing 100 may include a case 110 and a bracket 130. The case 110 is formed in such a structure that one side is opened and the internal space is defined. The case 110 is formed as a side surface extending from the upper surface and the upper surface. The bracket 130 is coupled to the upper surface of the case 110 so as to oppose the inner space.

The stator and the vibrator 300 generate vibrations due to the mutual electromagnetic force. The stator and the vibrator 300 are the magnet 200 and the coil 310. According to the design of the linear vibration motor, the stator may be the magnet 200 and the vibrator 300 may be the coil 310. [ Conversely, the stator may be the coil 310 and the vibrator 300 may be the magnet 200. It goes without saying that the embodiment shown in Fig. 1 is also applicable to the case where the stator is the magnet 200 and the vibrator 300 is the coil 310 or vice versa.

The stator is coupled to the inside of the housing (100). Referring to FIG. 1, a magnet 200 is fixedly coupled to a bracket 130. 1, the magnet 200 is shown coupled to the bracket 130, but the magnet 200 may be coupled to the case 110, or both the case 110 and the bracket 130 may be coupled It is possible.

The vibrator 300 vibrates by the electromagnetic force generated by the interaction with the stator. Referring to FIG. 1, the coil 310 is connected to the housing 100 by an elastic body 400. The coil 310 is coupled to a weight 330 having a predetermined mass. In this case, the vibrator 300 may include a coil 310 and a weight 330. When a current flows through the coil 310, an electromagnetic force is generated in relation to the magnet 200. At both ends of the coil 310, a circuit 500 capable of inputting a current to the coil 310 is connected. One end of the circuit 500 is connected to the coil 310 and the other end is extended to the outside of the housing 100 to transmit an electric signal inputted from the outside to the coil 310. The circuit 500 may be formed of a flexible circuit board so that the shape changes as the vibrator 300 vibrates.

Referring to FIG. 3, a first opening 111 is formed on the upper surface of the case 110 corresponding to one surface of the housing 100. The first opening 111 is formed through the upper surface of the case 110. The first opening 111 is preferably formed at the center of the upper surface of the case 110.

Preferably, the first opening 111 is formed in a shape having a direction when it is rotated on the upper surface of the case 110. That is, the first opening 111 has a different shape when it rotates on the upper surface of the case 110. When the first opening 111 is formed, for example, in a circular shape, there is no change in shape due to rotation, which is not preferable. On the other hand, when the first opening 111 is formed of, for example, a polygon such as a triangle, it is preferable that the shape changes due to the rotation. In particular, in the case of a regular polygon, since the directionality is overlapped with the rotation, it is most preferable that the first opening 111 is not a regular polygon. For example, in the case of an equilateral triangle, since the same shape is overlapped three times in the case of 360 ° rotation, it is not desirable to determine the directionality. However, in the case of an isosceles triangle, it is preferable that the same shape is not overlapped and always has a different direction when rotating 360 degrees.

A welding point 113 is located on the upper surface of the case 110. The welding point 113 refers to a portion to which heat is applied to join the elastic body 400 and the case 110. There may be a plurality of welding points 113. The welding point 113 is not fixed at a specific position on the upper surface of the case 110 but the welding point 113 becomes a portion heated after the welding process. That is, the heated position of the welding equipment is fixed, and the position of the welding point 113 can be adjusted according to the relative position of the case 110 on the welding equipment.

Referring to FIG. 4, the elastic body 400 may be formed of a leaf spring having an elastic force. The plate spring includes an inner plate portion 410, an outer plate portion 430 formed on the outer side of the inner plate portion 410, and a connecting portion 450 connecting the inner plate portion 410 and the outer plate portion 430. There are two or more connecting portions 450 to connect the inner plate portion 410 and the outer plate portion 430 at two or more points.

Referring to FIGS. 1 and 4 together, one end of the elastic body 400 may be coupled to the inside of one side of the housing 100. 1, the inner plate 410 of the elastic body 400 is coupled to the inside of the upper surface 111 of the case 110. As shown in FIG. Also, the outer plate portion 430 of the elastic body 400 is engaged with the vibrator 300. More specifically, the outer plate portion 430 of the elastic body 400 is coupled with the weight 310 combined with the coil 310 or the coil 310. 1, one end of the elastic body 400 is an inner plate portion 410 and the other end is an outer plate portion 430. One surface of the housing 100 corresponds to an upper surface of the case 110. [

Referring again to FIG. 4, a second opening 411 is formed in the inner plate 410 corresponding to one end of the elastic body 400. Specifically, the second opening 411 is formed at a position opposite to the first opening 111 when the elastic body 400 is coupled to the case 110. The first opening 111 is formed in the central portion of the upper surface of the case 110 and the second opening 411 is formed in the inner plate portion 410 of the elastic body 400 at a position opposite thereto.

The first opening 111 and the second opening 411 are formed in the same shape. For example, when the first opening 111 is formed as a triangle instead of a regular triangle, the second opening 411 is also formed into a triangle having the same shape. However, the first opening 111 and the second opening 411 may have a similar shape but different sizes.

The inner plate 410 corresponding to one end of the elastic body 400 has a coupling point 413. The coupling point 413 refers to a portion to be welded when the inner plate portion 410 of the elastic body 400 and the case 110 are engaged. The coupling points 413 may be formed in the same number as the welding points 113.

When an electric signal is inputted to the coil 310 and an electromagnetic force is generated between the vibrator 300 and the stator, the elastic body 400 is repeatedly tensioned and compressed. As a result, the elastic body 400 and the vibrator 300 are changed in position together with vibration.

Referring to FIG. 5, the case 110 and the elastic body 400 are assembled. Specifically, the upper surface inner side surface of the case 110 and the inner side plate portion 410 of the elastic body 400 are brought into contact with each other. The case 110 and the elastic body 400 are coupled so that the first opening 111 and the second opening 411 are arranged so as to have the same directionality. As a result, the first opening 111 and the second opening 411 are combined so as to overlap exactly. 4, when the first opening 111 and the second opening 411 are formed in an isosceles triangle having the same shape, the first opening 111 and the second opening 411 have the same directionality And are formed so as to overlap with each other. It is possible for the case 110 and the elastic body 400 to be combined while maintaining a predetermined rotational angle.

The welding point 113 of the case 110 and the coupling point 413 of the elastic body 400 may be arranged to overlap with each other through coupling the case 110 and the elastic body 400 while maintaining a predetermined rotation angle have. Specifically, it can be arranged so that the coupling point 413 of the elastic body 400 is positioned below the welding point 113 of the case 110. [

The coupling between the case 110 and the elastic body 400 can be performed through welding. Specifically, when the elastic body 400 is positioned so as to abut the inside of the case 110, heat is applied to the welding point 113 of the case 110 from the outside of the case 110, . As a welding method, for example, laser welding may be used, and a laser may be irradiated to the welding point 113 outside the case 110. [ In this case, the case 110 in which the elastic body 400 is inserted is placed in the welding equipment. The welding point 113 is set to a position where the laser of the welding equipment is irradiated and the position of the welding point 113 can be adjusted as the case 110 rotates. At this time, the engaging points 413 are arranged to be vertically aligned with the welding points 113 through the shape of the first opening 111 of the case 110. When the welding point 113 is irradiated with a laser beam in a state in which the coupling point 413 and the welding point 113 are accurately arranged, the coupling point 413 and the welding point 113 are welded and coupled.

Through this method of the present invention, the position designated by the coupling point 413 can be accurately combined with the case 110. [ The elastic body 400 and the case 110 can be firmly coupled when the engagement point 413 is correctly engaged with the case 110. [ Further, when the engaging point 413 accurately engages with the case 110, the elastic body 400 can maintain the initially designed spring constant.

Hereinafter, a linear vibration motor according to another embodiment of the present invention will be described with reference to FIGS.

6 is a cross-sectional view of a linear vibration motor according to another embodiment of the present invention. 7 is an exploded perspective view of a linear vibration motor according to an embodiment of the present invention. 8 is a plan view of a case according to another embodiment of the present invention. 9 is a plan view of an elastic body according to another embodiment of the present invention. 10 is a perspective plan view showing a coupling relation between a case and an elastic body according to another embodiment of the present invention.

The linear vibration motor of the embodiment described with reference to Figs. 6 to 10 is substantially the same as the linear vibration motor of the embodiment described with reference to Figs. 1 to 6 except for the direction of engagement of the elastic body 400. Fig. Therefore, we focus on different points.

6 to 8, a first opening 111 is formed on an upper surface of a case 110 corresponding to one surface of the housing 100. A welding point 113 is located on the upper surface of the case 110. Specifically, a plurality of welding points 113 may be formed on the outer peripheral portion of the upper surface of the case 110, which is in contact with and joined to the outer side plate portion 430 of the elastic body 400.

6, 7 and 9, the outer plate 430 of the elastic body 400 is coupled to the inside of the upper surface of the case 110. Also, the inner plate portion 410 of the elastic body 400 is engaged with the vibrator 300. More specifically, the inner plate portion 410 of the elastic body 400 is coupled with the weight 310 combined with the coil 310 or the coil 310. 6, one end of the elastic body 400 is an inner plate portion 410 and the other end is an outer plate portion 430. One surface of the housing 100 corresponds to an upper surface of the case 110. [

Referring to FIG. 9, a second opening 411 is formed in an outer plate 430 corresponding to one end of the elastic body 400. Specifically, the second opening 411 is formed at a position opposite to the first opening 111 when the elastic body 400 is coupled to the case 110. The first opening 111 is formed in the central portion of the upper surface of the case 110 and the second opening 411 is formed in the outer plate portion 430 of the elastic body 400 at a position opposite thereto.

The first opening 111 and the second opening 411 are formed in the same shape. For example, when the first opening 111 is formed as a triangle instead of a regular triangle, the second opening 411 is also formed into a triangle having the same shape. However, the first opening 111 and the second opening 411 are similar in shape but may have different sizes.

In addition, a coupling point 413 is located in the outer plate portion 430 corresponding to one end of the elastic body 400. The coupling point 413 refers to a portion to be welded when the outer plate portion 430 of the elastic body 400 and the case 110 are engaged. A plurality of coupling points 413 may be formed.

Referring to FIG. 10, the case 110 and the elastic body 400 are assembled. Specifically, the inner surface of the upper surface of the case 110 and the outer plate 430 of the elastic body 400 are brought into contact with each other. The case 110 and the elastic body 400 are coupled so that the first opening 111 and the second opening 411 are arranged so as to have the same directionality. It is possible for the case 110 and the elastic body 400 to be combined while maintaining a predetermined rotational angle.

The welding point 113 of the case 110 and the coupling point 413 of the elastic body 400 may be arranged to overlap with each other through coupling the case 110 and the elastic body 400 while maintaining a predetermined rotation angle have. Specifically, it can be arranged so that the coupling point 413 of the elastic body 400 is positioned below the welding point 113 of the case 110. [

Hereinafter, a method of manufacturing a linear vibration motor according to an embodiment of the present invention will be described with reference to FIGS.

11 is a flowchart of a method of manufacturing a linear vibration motor according to an embodiment of the present invention. 12 is a perspective view for explaining a step of inserting an elastic body into the case. 13 is a perspective view showing a state in which the case and the elastic body are coupled.

The manufacturing method of the linear vibration motor to be described later corresponds to the manufacturing method of the linear vibration motor described with reference to Figs. 1 to 5. Therefore, for the sake of convenience of description, some of the same descriptions as those of the linear vibration motor described above with reference to Figs. 1 to 5 will be omitted.

Referring to FIG. 11, a method of manufacturing a linear vibration motor includes preparing a case (S100), preparing an elastic body (S200), adjusting the position of the case and the elastic body (S300) (S400), combining the case and the elastic body (S500), combining the elastic body and the vibrator (S600), combining the stator (S700), and joining the bracket (S800).

First, prepare a case. A first opening is formed on one surface of the case. Specifically, the first opening may be formed at the center of the upper surface of the case. The first opening may be formed, for example, in a polygonal shape. The case can be referred to Fig. 1 and Fig.

Thereafter, an elastic body is prepared. A second opening is formed in the elastic body. The second opening may have the same shape as the first opening. However, the first opening and the second opening may have a similar shape but different sizes. 1 and 4 can be referred to as an elastic body.

Referring to FIG. 12, the position of the case 110 and the elastic body 400 are adjusted. 12 is a perspective view for explaining the step of inserting the elastic body 400 into the case 110. FIG. 12, the positions of the case 110 and the elastic body 400 are adjusted by inserting the first opening 111 and the second opening 411 into the array pin 600. As shown in FIG. The joining point 413 of the elastic body 400 and the welding point 113 of the case 110 can be aligned.

Thereafter, the array pin 600 can be removed from the first opening 111 and the second opening 411.

Referring to FIG. 13, the case 110 and the elastic body 400 are engaged with each other. Specifically, as shown in FIG. 13, heat is applied to the welding point 113 of the case 110 so that the welding point 113 and the coupling point 413 are welded to each other.

Thereafter, the elastic body and the vibrator may be combined, the stator may be coupled with the vibrator to generate electromagnetic force with each other, and the bracket may be coupled to one surface of the case.

The embodiments of the linear vibration motor and the manufacturing method thereof according to the present invention have been described above. The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and changes may be made by those skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should be determined by the equivalents of the claims and the claims.

100: housing 110: case
111: first opening 113: welding spot
200: Magnet 300: Oscillator
310: Coil 330: Weight
400: elastic body 411: second opening
413: Coupling point 500: Circuit
600: array pin

Claims (15)

A housing defining an inner space;
A stator coupled to the housing;
A vibrator that vibrates due to an electromagnetic force generated between the stator and the stator; And
An elastic body having one end coupled to the upper surface of the housing and the other end coupled to the vibrator,
A first opening is formed on one surface of the housing,
And the elastic body has a second opening formed at a position facing the first opening.
The method according to claim 1,
Wherein the elastic body is a leaf spring including an inner plate portion, an outer plate portion, and a connecting portion connecting the inner plate portion and the outer plate portion,
And the second opening is formed in the inner plate portion.
3. The method of claim 2,
The inner plate portion is coupled to one surface of the housing,
And the outer plate portion engages with the vibrator.
3. The method of claim 2,
Wherein the outer plate portion is coupled to one surface of the housing,
And the inner plate portion is engaged with the vibrator.
The method according to claim 1,
And the first opening and the second opening are formed in the same shape.
The method according to claim 1,
Wherein the first opening is formed in a polygonal shape.
The method according to claim 1,
Wherein the first opening is formed in a shape having a direction when the first housing is rotated on one side of the housing.
The method according to claim 1,
Wherein the housing includes a case having a side surface extending from one side of the housing and a side extending from the side surface, and a bracket opposed to one surface of the housing.
Preparing a case having a first opening formed on one surface thereof;
Preparing an elastic body having a second opening formed therein;
Adjusting positions of the case and the elastic body by inserting the first opening and the second opening into the array pin; And
And combining the case and the elastic body.
10. The method of claim 9,
Wherein the first opening and the second opening are formed in the same shape.
10. The method of claim 9,
Wherein the first opening is formed in a polygonal shape.
10. The method of claim 9,
Wherein the first opening is formed in a shape having a directionality upon rotation on one surface of the case.
10. The method of claim 9,
And the array pin has a cross section of a shape corresponding to the shape of the first opening.
10. The method of claim 9,
Wherein the step of joining the case and the elastic body is performed by welding the inner side of the case and the elastic body.
10. The method of claim 9,
Coupling the elastic body and the vibrator;
Coupling a stator to generate an electromagnetic force with the vibrator; And
And joining the bracket so as to face one surface of the case.
KR1020140012230A 2014-02-03 2014-02-03 Linear vibration motor and manufacturing method thereof KR20150091701A (en)

Priority Applications (2)

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KR1020140012230A KR20150091701A (en) 2014-02-03 2014-02-03 Linear vibration motor and manufacturing method thereof
PCT/KR2015/000733 WO2015115755A1 (en) 2014-02-03 2015-01-23 Linear vibration motor and method for manufacturing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140012230A KR20150091701A (en) 2014-02-03 2014-02-03 Linear vibration motor and manufacturing method thereof

Publications (1)

Publication Number Publication Date
KR20150091701A true KR20150091701A (en) 2015-08-12

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Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
KR100550921B1 (en) * 2004-06-24 2006-02-13 삼성전기주식회사 Linear oscillator improved vibration characteristics
KR100849227B1 (en) * 2006-12-08 2008-07-31 부전전자 주식회사 Linear Type Vibration Actuator
KR20100120894A (en) * 2009-05-07 2010-11-17 부전전자 주식회사 Linear vibrator and assembly method thereof
KR20130015344A (en) * 2011-08-03 2013-02-14 삼성전기주식회사 Linear vibration motor
KR101860775B1 (en) * 2011-10-10 2018-05-28 주식회사 엠플러스 Linear vibrator

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