KR20160046442A

KR20160046442A - Method for assembling motor

Info

Publication number: KR20160046442A
Application number: KR1020140142298A
Authority: KR
Inventors: 김재환
Original assignee: 주식회사 오리엔텍
Priority date: 2014-10-21
Filing date: 2014-10-21
Publication date: 2016-04-29

Abstract

A method of assembling a motor according to an embodiment of the present invention includes aligning a guide hole of a case and an aligning portion of a spring; Welding one end of the spring to an inner surface of the case; And the other end of the spring is welded to one side or a yoke of the mass body facing the inner surface of the case by a laser welding device or laser beam passing through the welding hole.

Description

[0001] METHOD FOR ASSEMBLING MOTOR [0002]

The present invention relates to a motor assembly method.

2. Description of the Related Art [0002] With the recent mass production and miniaturization of portable electronic devices such as smart phones, various components provided in these electronic devices must be highly reliable and miniaturized.

The vibration motor generates vibration through a magnetic force formed as a current flows through the coil of the vibration motor according to the supply of current to one of these components.

Such a vibration motor is required to have high reliability since it is mechanically moved, and it can be miniaturized because it is installed in a small electronic device or the like, and it is easy to assemble and has an easy structure for mass production.

Therefore, studies on the assembling method for assembling a small vibration motor are underway.

Korean Patent Laid-Open No. 10-2001-0019942 (Publication date: March 15, 2001)

A motor assembly method according to an embodiment of the present invention is for smoothly welding a spring, a mass, or a yoke.

The task of the present application is not limited to the above-mentioned problems, and another task which is not mentioned can be clearly understood by a person skilled in the art from the following description.

According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising: aligning an alignment portion of a spring with a guide hole of a case; Welding one end of the spring to an inner surface of the case; And the other end of the spring is welded to one side or a yoke of the mass body facing the inner surface of the case by a laser welding device or laser beam passing through the welding hole.

The method of assembling a motor according to an aspect of the present invention may further include the step of inserting a magnet unit mounted on a bracket into a coil fixed to an inner surface of the mass body and covering an opening of the case with the bracket.

The guide pin can be aligned with the guide hole by inserting or engaging the guide pin with the alignment part of the spring through the guide hole.

The welding hole may be located on a virtual line connecting the center of the case and the guide hole.

The alignment portion may be one of alignment holes, alignment grooves, or alignment recesses.

The connecting region of the other end of the spring may protrude in a direction which is offset from a direction in which the case and the spring face each other.

A concave welding area may be formed on the surface of the protruding connection area.

The method of assembling a motor according to an embodiment of the present invention can smoothly weld a spring, a mass body, or a yoke.

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

1 to 3 show a motor assembly method according to an embodiment of the present invention.
4 is a plan view of a spring of a vibration motor according to an embodiment of the present invention.
5 shows an example of a vibration motor that can be assembled by a motor assembly method according to an embodiment of the present invention.
6 shows another example of a vibration motor that can be assembled by the motor assembly method according to the embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

1 to 3 show a motor assembly method according to an embodiment of the present invention. A method of assembling a motor according to an embodiment of the present invention includes aligning a guide hole 113 of the case 110 and an alignment part of the spring 120 and welding one end of the spring 120 to the inner surface of the case 110 And the other end of the spring 120 is welded to one side of the mass body 130 facing the inner surface of the case 110 by a laser welding device or a laser beam passing through the welding hole 111.

First, alignment of the case 110 and the spring 120 will be described with reference to the drawings.

The case 110 and the spring 120 are aligned through the guide hole 113 of the case 110 and the alignment portion 121 of the spring 120. As shown in Figure 4, A guide hole 113 may be formed in the case 110. The guide hole 113 is located on an imaginary line connecting the welding holes 111 and 111. [

At this time, the guide hole 113 and the alignment part 121 formed in the area of the spring 120 are disposed to face each other, so that the case 110 and the spring 120 can be aligned.

When the case 110 and the spring 120 are disposed such that the alignment unit 121 and the guide hole 113 face each other, the welding hole 111 of the case 110 and the protruded connection region of the spring 120 Can be aligned.

That is, when the case 110 and the spring 120 are aligned through the guide hole 113 of the case 110 and the alignment part 121 of the spring 120, The welding of the spring 120 to the protruding region can be smoothly performed.

4, when the spring 120 is viewed in a plan view, the aligning portion 121 may be located on an imaginary line connecting the projecting portion and the center of the spring 120, and as shown in FIG. 2, The hole 113 may be located on a virtual line connecting the center of the case 110 and the welding hole 111. [

4 may be an alignment recess having a concave shape toward the center of the spring 120, but not limited thereto, and may be an alignment hole or an alignment groove.

A guide pin may be used for aligning the case 110 and the spring 120. The guide pin may pass through the guide hole 113 to be aligned with the alignment part 121 of the spring 120, The guide hole 113 and the alignment part 121 can be aligned by being inserted into the alignment part 121 of the spring 120 such as the alignment recess.

The case 110 and the spring 120 are aligned through the guide hole 113 of the case 110 and the aligning portion 121 of the spring 120 as shown in FIG. One end of the spring 120 is welded to the side surface.

2, the other end of the spring 120 is fixed to one side of the mass body 130 facing the inner surface of the case 110 by a laser welding device or a laser beam passing through the welding hole 111 Welded.

3, the method of assembling a motor according to an embodiment of the present invention includes inserting a magnet unit 190 installed in a bracket 160 into a coil 140 fixed to an inner surface of a mass body 130, And then covering the opening of the case 110 with the cover 160.

The magnet unit 190 is inserted into the coil 140 to form a magnetic field and may include a permanent magnet magnet 191 and a magnet plate 193. The magnet plate 193 can form a stronger magnetic force than the magnet 191 and smooth movement of the mass body 130 can be achieved without the necessity of forming a strong magnetic force on the entire magnet portion 190 along the magnet plate 193 .

Components of the vibration motor of Fig. 3 that are not described above will be described later.

3, 4 and 5, the connection area of the other end of the spring 120 may protrude in a direction which is deviated from a direction in which the case 110 and the spring 120 are opposed to each other. 5 shows an example of a vibration motor that can be assembled by the motor assembly method according to the embodiment of the present invention.

For example, a direction in which the inner surface of the case 110 faces one side of the spring 120 (hereinafter referred to as a first direction) is a vertical direction of the vibration motor, and a connection area at the other end of the spring 120 Direction) may be the lateral direction of the vibration motor. Accordingly, the first direction and the second direction may be offset from each other to form a predetermined angle.

As the connection area of the other end of the spring 120 is protruded as described above, the mass body 130 and the spring 120 can be welded smoothly. As described above, the other end of the spring 120 and the mass body 130 are welded by laser welding, and a concave welding area can be formed on the surface of the projected connecting region in the process of welding.

3 and 5, the coil 140 forms an electric field in response to the supply of the alternating current having a specific frequency, and the magnet unit 190 forms a magnetic field. A force for moving the coil 140 up and down occurs due to the interaction between the magnetic field formed by the coil 140 and the magnet unit 190 and the electric field, and thus, the mass body 130 coupled with the coil 140 moves up and down Lt; / RTI >

As shown in FIGS. 2, 3, and 5, the method of assembling a motor according to an embodiment of the present invention can be applied not only to a vibration motor having no yoke but also to a mass body 130 and a coil 140, The motor assembly method according to the embodiment of the present invention can be applied to the vibration motor having the yoke 200 disposed between the mass body 130 and the coil 140. [

6, a yoke 200 is provided between the coil 140 and the mass body 130, and the yoke 200 forms a magnetic field path. One end of the spring 120 is welded to the yoke 200 by a laser welding apparatus or a laser beam. At this time, the laser welding apparatus or the laser beam can pass through the welding hole 111 of the case 110.

Alignment of the case 110 and the spring 120 and welding of the spring 120 to the case 110 are the same as those described above, so that a description thereof will be omitted.

3 and 5, a flexible printed circuit board (PCB) 150 may be connected to the coil 140 to supply an alternating current to the coil 140. A first damper 170 and a second damper 180 may be provided on the case 110 and the bracket 160 respectively to reduce the impact caused by the movement of the mass body 130. [

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. . Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

Case: 110
Welding Hole: 111
Guide hall: 113
Spring: 120
Sorting: 121
Mass: 130
Coil: 140
Flexible PCB: 150
Bracket: 160
First damper 170
Second damper: 180
Magnet section: 190
Magnet: 191
Magnet plate: 193
York: 200

Claims

Aligning the aligning portion of the guide hole of the case and the spring;
Welding one end of the spring to an inner surface of the case;
And the other end of the spring is welded to one side of the mass body facing the inner side surface of the case by a laser welding apparatus or a laser beam passing through a welding hole of the case
/ RTI >

The method according to claim 1,
Inserting a magnet portion provided in the bracket into a coil fixed to the inner surface of the mass body, and covering the opening portion of the case with the bracket.

The method according to claim 1,
Wherein the guide hole is aligned with the guide hole by inserting or engaging the guide pin through the guide hole and the alignment part of the spring.

The method according to claim 1,
Wherein the welding hole is located on a virtual line connecting the center of the case and the guide hole.

The method according to claim 1,
Wherein the alignment portion is one of alignment holes, alignment grooves, or alignment recesses.

6. The method according to any one of claims 1 to 5,
And the connecting region of the other end of the spring is protruded in a direction which is deviated from a direction in which the case and the spring face each other.

The method according to claim 6,
And a concave welding area is formed on a surface of the protruding connection area.