KR102179867B1 - Motor for actuating lens - Google Patents

Abstract

An embodiment includes a mover including a first coil unit; A driving unit for moving the mover, including a housing having a magnet portion having an inner surface facing the outer surface of the first coil unit and a hole for receiving a front surface other than the inner surface of the magnet unit; A base supporting the mover and the driving unit; And a cover can fastened to the base to accommodate the mover and the driving unit.

Description

Lens driving motor{MOTOR FOR ACTUATING LENS}

An embodiment of the present invention relates to a lens driving motor having an improved structure.

With the widespread use of various portable terminals and the commercialization of wireless Internet services, demands of consumers related to portable terminals are diversifying. Accordingly, various types of additional devices are installed in the portable terminals.

Among them, a typical camera module is a camera module that can take a photograph or video of a subject, store the image data, and edit and transmit it as necessary.

Recently, the demand for small-sized camera modules is increasing for various multimedia fields such as notebook personal computers, camera phones, PDAs, smart phones, toys, etc., and also for image input devices such as information terminals of surveillance cameras and video tape recorders. .

The camera module includes a lens driving motor, and such a lens driving motor moves the lens unit by the interaction of a plurality of magnets arranged in the housing and a coil arranged to correspond to the magnet, and there is a problem that the magnets are easily separated. I can.

The embodiment minimizes the assembly tolerance of the magnet and proposes a structure that can be firmly fixed to the housing, thereby providing a lens driving motor with improved reliability.

An embodiment includes a first coil unit; A magnet part facing the outer surface of the first coil part; A housing accommodating the magnet part and having a hole formed therein; A base supporting the housing; And a cover can fastened to the base to accommodate the mover and the driving unit.

In addition, the hole may be formed in a shape corresponding to the magnet of the magnet part.

In addition, at least one or more adhesive inflow holes may be formed on at least one side of the hole.

In addition, the driving unit further includes a second coil unit disposed on the base so as to face the magnet unit, and a terminal unit disposed between the second coil unit and the base and bent to be connected to an external power source at one side. Can include.

In addition, the base may have a seating groove in which the terminal portion is seated on a side surface.

On the other hand, the present invention is a lens unit; A bobbin receiving the lens unit inside and having a first coil unit disposed outside; A magnet part facing the outer surface of the first coil part; A housing accommodating the magnet part and having a hole formed therein; A base supporting the housing; A cover can fastened to the base to accommodate the mover and the driving unit; And a printed circuit board disposed under the base to apply power to the first coil unit.

According to an embodiment of the present invention, it is possible to implement a lens driving motor or a camera module with improved reliability by improving the structure of the hole in the housing.

1 is an exploded perspective view of a lens driving motor according to an embodiment of the present invention.
2 is a partial perspective view of a housing according to an embodiment of the present invention.
3 is a partial perspective view of a housing according to another embodiment of the present invention.

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

Unless otherwise defined, all terms in the present specification are the same as the general meanings of terms understood by those skilled in the art, and if terms used in the present specification conflict with the general meanings of the terms, the definitions used in the present specification are applied.

However, the invention to be described below is only for describing an embodiment of the present invention, not for limiting the scope of the present invention, and reference numerals used identically throughout the specification denote the same elements.

Hereinafter, referring to the drawings, a detailed description of the lens driving motor of the embodiment is as follows.

1 is an exploded perspective view of a lens driving motor according to an embodiment of the present invention, FIG. 2 is a partial perspective view of a housing according to an embodiment of the present invention, and FIG. 3 is a partial perspective view of a housing according to another embodiment of the present invention.

Referring to FIG. 1, the lens driving motor according to the embodiment may largely include a mover 200, a driving unit 300, and a cover can 100, and may further include an elastic unit 600.

The cover can 100 may be fastened to a base 350 to be described later to accommodate a mover 200, a driving unit 300, and an elastic unit 600, and may form the exterior of a lens driving motor. As shown, the cover can 100 may be formed in a rectangular parallelepiped shape with an opening formed on an upper side and an open lower side, but the shape of the cover can 100 is not limited thereto.

In short, the shape of the cover can 100 may be a quadrangular shape or an octagonal shape when viewed from above, and may be implemented in any other shape.

The cover can 100 may be coupled with the base 350 by having an inner side in close contact with the seating groove 354 of the base 350, which will be described later, and protects internal components from external impacts and at the same time external contamination. It may have a substance penetration prevention function.

In addition, the cover can 100 may also perform a function of protecting components of the camera module from external radio wave interference generated by a mobile phone or the like. Accordingly, the cover can 100 may be formed of a metal material such as iron or aluminum, and may be plated with a metal such as nickel to prevent corrosion.

The cover can 100 may be implemented as a yoke portion itself to be described later, or may be fixed by molding the yoke portion inside. In an embodiment, an inner yoke (not shown) formed bent toward the inside of the cover can 100 may be formed inside the upper side of the cover can 100. This inner yoke may be located in the concave inlet 213 formed in the bobbin 210 to be described later. In this case, the inner yoke may be disposed at a corner around an opening on the upper side of the yoke or may be disposed on a side thereof, and the concave inlet 213 of the bobbin 210 may be formed at a corresponding position.

In addition, the cover can 100 may be formed with an extension part 110 in which a portion corresponding to the seating groove 354 of one surface fastened with the base 350 to be described later extends at a predetermined interval, and such an extension When the cover can 100 is inserted into the base 350 due to the portion 110, the terminal portion 342 of the substrate 340 to be described later may be naturally bent.

The mover 200 may be moved by receiving a lens or a lens unit (not shown) to be described later. The mover 200 may include a bobbin 210 and a first coil unit 220.

The bobbin 210 may accommodate a lens unit (not shown) inside. Specifically, the bobbin 210 is coupled to a lens unit to be described later to fix the lens unit, and the coupling method of the lens unit and the bobbin 210 is fastened by forming a thread on the inner circumferential surface of the bobbin 210 and the outer circumferential surface of the lens unit, respectively. A threaded connection method that is used may be used, but it may be combined by a screwless connection method using an adhesive. Of course, even in the threaded connection method, it is possible to achieve a more robust mounting between each other by using an adhesive after screwing.

In addition, a guide part 211 for guiding the winding or mounting of the first coil part 220 to be described later may be formed on the outer circumferential surface of the bobbin 210. The guide part 211 may be integrally formed with the outer surface of the bobbin 210, and may be formed continuously along the outer surface of the bobbin 210, or may be formed to be spaced apart at predetermined intervals as shown. have.

In addition, an upper spring 610 and/or a lower spring 620 provided on the upper side and/or lower side of the bobbin 210 to support the bobbin 210 from the upper side of the base 350 to be described later. The inner fastening protrusion 212 to be fastened may be formed.

In addition, the bobbin 210 is formed on the outer circumferential surface so that the inner yoke of the cover can 100 described above can be positioned between the bobbin 210 and the first coil unit 220 wound around the bobbin 210. It may further include a concave inlet (213).

The mover 200 may include a first coil unit 220, and the first coil unit 220 may be disposed on an outer surface of the bobbin 210. Specifically, the first coil part 220 may be guided by the guide part 211 of the bobbin 210 and wound on the outer surface of the bobbin 210, and the pre-wound coil part is the guide part 211 ) Can also be mounted. Alternatively, four individual coils (not shown) may be disposed on the outer surface of the bobbin 210 at intervals of 90°. The first coil unit 220 may receive power applied from a printed circuit board (not shown) to be described later to form an electromagnetic field.

The driving unit 300 moves the mover 200, and the driving unit 300 includes a housing 310, a magnet unit 320, a second coil unit 330, a substrate 340, and a base 350. It may include.

The housing 310 may be formed in a shape corresponding to the inner surface of the cover can 100. In addition, the housing 310 may not be provided separately, but may be formed integrally with the cover can 100 to form the exterior of the lens driving motor.

In an embodiment, the housing 310 is supported on the base 350 and accommodates the bobbin 210 inside, and may be formed in a hexahedral shape corresponding to the shape of the cover can 100, , The lower side may be opened to support the movable part.

In addition, the housing 310 may include a hole 311 formed in a shape corresponding to a magnet part 320 to be described later on a side surface. The holes 311 may be formed in the housing 310 with a number corresponding to the magnets 320a, 320b, 320c, and 320d of the magnet part 320 to be described later.

Conventionally, the upper or lower surface of the magnet seated on the housing was exposed. In such a structure, there was a concern that a tolerance may occur due to a difference in size of each magnet or a difference in height due to an adhesive according to the characteristics of grinding the grinding stone, and this tolerance could lead to magnetic imbalance.

For example, Table 1 below is a result of measuring the height of each magnet seated in a conventional housing, and the unit is µm.

First magnet 2nd magnet 3rd magnet 4th magnet Max-min Standard Deviation Sample 1 3.017 3.023 3.011 3.010 0.013 0.006 Sample 2 3.011 3.004 3.011 3.007 0.007 0.003 Sample 3 3.005 2.994 3.013 3.009 0.019 0.008 Sample 4 3.004 2.997 3.008 3.019 0.022 0.009 Sample 5 3.018 3.027 3.019 3.015 0.012 0.005 Sample 6 3.016 3.014 3.023 3.019 0.009 0.004 Sample 7 3.000 3.003 3.009 3.007 0.009 0.004 Sample 8 3.020 3.019 3.029 3.012 0.017 0.007 Sample 9 3.022 3.037 3.002 2.997 0.040 0.018 Sample 10 3.012 3.001 3.007 2.993 0.019 0.008 Sample 11 3.010 3.035 3.013 3.004 0.031 0.014 Sample 12 3.012 3.029 3.018 3.007 0.022 0.009 Sample 13 3.006 3.010 3.016 3.006 0.010 0.005 Sample 14 3.024 3.018 3.001 3.013 0.023 0.010 Sample 15 3.032 3.020 3.062 3.025 0.042 0.019 Sample 16 3.012 3.017 3.008 3.037 0.029 0.013 Sample 17 3.011 3.017 3.020 3.001 0.019 0.008 Sample 18 3.039 3.026 3.017 2.998 0.041 0.017 Sample 19 3.033 3.019 3.006 3.007 0.027 0.013 Sample 20 3.034 3.020 3.002 3.007 0.032 0.014 Sample 21 3.002 3.007 3.011 3.008 0.009 0.004 Sample 22 3.007 3.009 3.028 3.001 0.027 0.012 Sample 23 3.060 3.013 3.004 2.994 0.066 0.029 Sample 24 3.004 3.000 3.006 2.990 0.016 0.007 Sample 25 3.002 3.005 3.012 3.000 0.012 0.005 Sample 26 3.045 3.012 3.006 3.006 0.039 0.019 Sample 27 3.007 3.029 2.995 3.010 0.034 0.014 Sample 28 3.037 3.025 3.005 3.001 0.036 0.017 Sample 29 3.021 3.018 3.012 3.000 0.021 0.009 Sample 30 3.011 3.011 3.016 3.007 0.009 0.004 Average 0.024 0.011

Referring to this, for example, in the case of sample 23, it can be seen that the height difference (max-min) is significant compared to the average, which may cause magnetic imbalance.

Accordingly, the present invention minimizes the tolerance by allowing the upper and lower surfaces of the magnet to come into contact with the housing in the prior art, and prevents a magnet detachment failure that may occur during a drop or tumble test. In addition, by minimizing the area in which the magnet is exposed to the outside, it is possible to prevent adhesion of foreign substances due to static electricity.

In addition, the holes 311 may be formed at each corner of the housing 310 as shown, but may be formed on each of the inner side surfaces of the housing 310.

Specifically, referring to FIG. 2, the hole 311 may accommodate the front surface of each of the magnets 320a, 320b, 320c, and 320d except for a surface (inner surface) facing the first coil unit 220. It can be formed to be able to.

These holes 311 are formed to correspond to the shape and/or size of the magnets 320a, 320b, 320c, and 320d, so that an assembly tolerance for the housing 310 of the magnets 320a, 320b, 320c, and 320d does not occur. You can do it. In addition, by applying an adhesive such as epoxy to some or all of the contact surfaces of the holes 311 or magnets 320a, 320b, 320c, and 320d, a more robust fastening and/or fastening to an accurate position may be implemented.

The embodiment has a structure in which the magnets 320a, 320b, 320c, and 320d can be rigidly and accurately fixed to the housing 310, so that the electromagnetic interaction with the first coil unit 220 is accurate, and the magnetic force By minimizing adhesion of foreign substances, an excellent actuator can be implemented.

In addition, referring to FIG. 3, at least one adhesive inflow hole 314 is formed on at least one surface of the hole 311, so that the adhesive can be introduced more easily. The adhesive inlet hole 314 may be formed in a circular shape as shown, but is not limited to this shape.

In addition, the housing 310 may be formed of an insulating material, and may be formed as an injection product in consideration of productivity.

In addition, the housing 310 may be disposed to be spaced apart from the cover can 100 by a predetermined distance as a moving part for driving the OIS. In this case, the bobbin 210 may be moved in the optical axis direction due to the interaction between the first coil part 220 and the magnet part 320, and the housing 310 may be described later with the magnet part 320. The interaction of the second coil unit 330 may move in all directions orthogonal to the optical axis direction.

In addition, at least two stoppers 312 protruding from the upper surface of the housing 310 and capable of absorbing the shock during an external shock may be formed at a predetermined interval. The stopper 312 may be integrally formed with the housing 310, may be formed on the bobbin 210, or may not be formed.

The magnet part 320 may be disposed in the housing 310 so as to face the first coil part 220, that is, an inner surface thereof to face the outer surface of the first coil part 220. Specifically, the magnet part 320 may be mounted on the housing 310 with an adhesive or the like, and may be mounted at equal intervals at four corners inside the housing 310 to promote efficient use of the internal volume. . Alternatively, the magnet part 320 may be mounted on four inner surfaces of the housing 310 to face the first coil part 220.

Each of the magnets 320a, 320b, 320c, and 320d constituting the magnet part 320 may be formed in a trapezoidal column shape as shown, but may be in each column shape such as a triangular column shape or a square column shape. In the shape of a column, a surface facing the first coil unit 220 may be formed to include some curves. In addition, the magnets 320a, 320b, 320c, and 320d may be processed so that the edges have some curved surfaces during processing. Holes 311 corresponding to the shape of each of the magnets 320a, 320b, 320c, and 320d may be formed in the housing 310.

The second coil part 330 may be disposed on the base 350 to face the magnet part 320. Specifically, the second coil unit 330 may be mounted on the substrate 340 provided above the base 350 to be described later, or may be formed on the substrate 340, and to pass the optical signal of the lens unit A through hole 331 may be formed in the center.

On the other hand, in consideration of reducing the height in the z-axis direction, which is the optical axis direction, in order to reduce the size of the lens driving motor, the second coil unit 330 may be formed of an FP coil, which is a patterned coil. .

The substrate 340 may be implemented as a flexible printed circuit board (FPCB) in consideration of lowering the height in the z-axis direction, which is the optical axis direction, in order to reduce the size of the lens driving motor.

In addition, the substrate 340 may include a terminal portion 342 disposed between the second coil portion 330 and the base 350 and bent at one side to be connected to an external power source. In this case, the terminal portion 342 may be bent downward (in the direction of the base 350) to be soldered with a separate printed circuit board to be described later, and the terminal portion 342 may be bent at a right angle or the cover can 100 ) Is bent when inserted into the base 350, which will be described later, or is bent with an acute angle to be further away from the cover can 100 toward the lower side, so that a short circuit due to solder that may occur during soldering can be prevented.

In addition, the substrate 340 may be provided on an upper surface of the base 350 to apply power to the second coil unit 330, and the through hole 331 of the second coil unit 330 and A corresponding through hole 341 is formed.

The Hall sensor unit 345 may be mounted on the substrate 340. Specifically, the Hall sensor unit 345 senses the strength and phase of the magnetic field to detect the movement of the magnet unit 320, and interacts with the substrate 340 to provide the first coil unit 220 and / Or is provided to precisely control the second coil unit 330. In this case, the substrate 340 may further include a Hall sensor terminal unit 343 for applying power to the Hall sensor unit 345.

In addition, the Hall sensor unit 345 may be provided in a straight line with respect to the magnet unit 320 and the optical axis direction, and must sense the displacement of the x-axis and y-axis, the Hall sensor unit 345 It may include two Hall sensors respectively provided at two adjacent edges of the substrate 340. That is, each of the Hall sensors located under the two magnets located adjacent to each other in a right-angle direction individually senses the position of the magnets 320a, 320b, 320c, and 320d driven in the x-axis or y-axis, the magnet part 320 This is because it is easy to calculate the amount of movement in a complex manner.

In addition, the Hall sensor unit 345 may be disposed on the outer surface of the bobbin 210. In addition, the Hall sensor unit 345 may be disposed on the bobbin 210 inside the first coil unit 220, and in this case, the Hall sensor unit 345 is covered by the first coil unit 220 It may not be visible from the outside. In addition, the Hall sensor unit 345 may be disposed outside the first coil unit 220.

The Hall sensor unit 345 is provided adjacent to the first coil unit 220 or the second coil unit 330 than the magnet unit 320, but the strength of the magnetic field formed in the magnet unit 320 is Considering that the strength of the electromagnetic field formed in is several hundred times greater than the intensity of the electromagnetic field formed in, the electromagnetic field of the first coil unit 220 or the second coil unit 330 is not considered in the movement detection of the magnet unit 320.

By the independent or organic interaction of the first coil unit 220 and/or the second coil unit 330 and the magnet unit 320, the lens unit to be described later is moved in all directions to focus the image of the subject. , Hand shake, etc. can be corrected.

Here, adjusting the focus of the image means an AF (Auto Focusing) function that moves the lens unit in the z-axis direction, which is the optical axis direction, for focusing near or far distance of the subject, or perpendicular to the z-axis direction for camera shake correction. It may mean an OIS (Optical Image Stabilization) function for moving the lens unit in the x- and y-axis directions, or a function capable of simultaneously performing the AF function and the OIS function.

That is, the embodiment may be implemented as an A.F (Auto Focusing) type or an OIS (Optical Image Stabilization) type.

Although the above-described embodiment has been described for the OIS type, it may be implemented as an electronic auto-focusing (AF) type, and in this case, the embodiment may not include the second coil unit 330 and the substrate 340. have.

The base 350 supports the mover 200 and the driving part 300, and a through hole 351 corresponding to the lens part is formed in the center. In addition, the base 350 may have a circular shape in the center so that the bobbin 210 may be spaced apart from each other, and a recess portion (not shown) recessed downward may be formed.

In addition, the base 350 may be formed with one or more fixing protrusions 352 protruding from the upper corners and interfacing or engaging with the inner surface of the cover can 100, and such fixing protrusions 352 It guides the fastening of the can 100 easily and at the same time makes it possible to achieve a solid fixation after fastening.

Further, the base 350 may have a seating groove 354 in which the terminal portion 342 is seated on a side surface, and the terminal portion 342 may be formed to be recessed into at least one side surface. In addition, the seating groove 354 may be formed at a right angle or an acute angle toward the bottom so as to correspond to the bending angle of the terminal part 342.

In addition, the base 350 may be formed with a Hall sensor receiving groove 353 corresponding to each Hall sensor of the Hall sensor unit 345, in this case, the Hall sensor is mounted on the lower side of the substrate 340 It is advantageous in miniaturization of the inner height.

In addition, the base 350 may perform a sensor holder function for protecting an image sensor (not shown) to be described later, and a filter (not shown) may be disposed. In this case, the filter may be mounted in the through hole 351 formed in the center of the base 350, and an infrared filter or a blue filter may be provided.

Here, the filter (not shown) may be formed of, for example, a film material or a glass material, and an infrared blocking coating material may be disposed on a flat optical filter such as a cover glass or cover glass for protecting an imaging surface. In addition, a separate sensor holder (not shown) may be positioned under the base 350 in addition to the base 350.

On the other hand, when the filter is installed on the outside of the lens, it is of course possible to block infrared rays by coating the lens surface without separately configuring the filter.

Meanwhile, the driving unit according to the embodiment of the present invention may further include an elastic unit 600.

The elastic unit 600 includes an upper spring 610, a lower spring 620 and a side spring 630.

The upper spring 610 and the lower spring 620 may be formed of separate springs disposed at each side of the housing 310, but for the efficiency of production, a single plate is bent and cut. It is preferably made of.

The upper spring 610 is disposed at an upper end of the housing 310 and protrudes by a predetermined width in the optical axis direction from an opening formed at the upper end, and the protruding part supports the upper end side of the bobbin 210. That is, the upper spring 610 is fastened to the upper surface of the housing 310 and the upper surface of the bobbin 210 to support the bobbin 210, and to provide a return force when the bobbin 210 moves upward. It is provided on the upper end of (310).

Specifically, the upper spring 610 includes a first upper spring 610a through which power applied from a printed circuit board, which will be described later, flows in, and a second upper spring through which the applied power is energized to the first coil pattern. (610b).

The first upper spring 610a and the second upper spring 610b may be formed as a plate spring in a shape symmetrical about an optical axis, and may be formed as a single plate spring, but separate plates for input/output of power It is preferably formed of a spring.

Each of the first upper spring 610a and the second upper spring 610b includes an outer part 611 fastened to the housing 310, an inner part 612 fastened to the bobbin 210, and the outer part ( It includes a connection portion 613 electrically connecting the 611 and the inner portion 612. Here, the connection part 613 may be formed as at least one bending part.

In order to fasten the upper spring 610, at least one outer fastening protrusion 313 is formed on the upper side of the housing 310, and the outer part 611 corresponds to the outer fastening protrusion 313. The formed outer fastening hole 611a may be formed. In addition, an outer protrusion 611b for electrically connected to two side springs 630 to be described later is formed on the outer portion 611.

On the other hand, to fasten the upper spring 610, at least one inner fastening protrusion 212 is formed on the upper side of the bobbin 210, and the inner fastening protrusion 212 is formed on the inner part 612. A correspondingly formed inner fastening hole 612a may be formed.

In addition, an inner portion 612 of each of the first upper spring 610a and the second upper spring 610b is electrically connected to one end 221 and the other end 222 of the coil wound around the first coil unit 220. Inner protrusions 612b to be connected are respectively formed.

The outer protrusion 611b and the side spring 630, the inner protrusion 612b, and one end 221 and the other end 222 of the coil may be electrically coupled by soldering, respectively.

Meanwhile, the outer portion 611 of the lower spring 620 is supported on the upper surface of the base 350, and the inner portion 612 supports the lower end side of the bobbin 210. Since the lower spring 620 does not input or output the power of the printed circuit board to be described later, the lower spring 620 may be formed as a single leaf spring.

One side of the side spring 630 is fastened to the side surface of the housing 310 and the other side is fastened to the side surface of the base 350 to attenuate the vibration of the x and y axes. The side springs 630 may be provided with four side springs forming a predetermined interval at an angle of 90°.

A damper member (not shown) may be applied to the bonding surface between the side spring 630 and the housing 310 and/or the base 350. The damper member may be implemented as an epoxy material in the form of a sol or gel, and may be applied between the side spring 630 and the housing 310 and/or the base 350 to absorb impact.

On the other hand, the lens driving motor according to the embodiment may be mounted on a camera module, and such a camera module includes a variety of multimedia fields such as mobile phones or notebook personal computers, camera phones, PDAs, smarts, toys, etc. It may be provided in an image input device such as an information terminal of a camera or video tape recorder.

When the lens driving motor according to the embodiment is provided in the camera module, a camera module may be configured by further including a lens unit, a printed circuit board, and/or an image sensor, which are not shown.

The lens unit, not shown, may be a lens barrel, but is not limited thereto, and any holder structure capable of supporting the lens may be included. In the embodiment, a case where the lens unit is a lens barrel is described as an example.

The lens unit is installed on the upper side of the printed circuit board to be described later, and is disposed at a position corresponding to the image sensor. One or more lenses are provided in the lens unit.

In the not shown printed circuit board, an image sensor (not shown) may be mounted in the center of the upper side, and various elements for driving the camera module may be mounted. In addition, in order to apply power for driving the lens driving motor according to the embodiment, the printed circuit board may include the terminal unit 342 or the lower spring 620 or the upper spring 610 or directly the first coil unit ( 220) and/or the second coil unit 330 are electrically connected.

In addition, the printed circuit board may have a soldering point to apply power to the terminal part 342.

From the above description, those skilled in the art will recognize that various changes and modifications can be made without departing from the technical spirit of the present invention, and the technical scope of the present invention is not limited to the contents described in the embodiments, but claims It should be determined according to the scope and the scope equivalent thereto.

100: cover can 200: mover
210: bobbin 220: first coil unit
300: drive 310: housing
320: magnet part 330: second coil part
340: substrate 350: base

Claims (14)

housing;
A bobbin disposed in the housing;
A coil disposed on the bobbin;
A magnet disposed in the housing and facing the coil; And
Includes an upper spring connecting the bobbin and the housing,
The upper spring includes an inner portion coupled to an upper surface of the bobbin, an outer portion coupled to an upper surface of the housing, and a connection portion connecting the inner portion and the outer portion,
The upper spring includes a first hole formed on the outer portion,
The housing includes a protrusion protruding from the upper surface of the housing and formed at a position corresponding to the first hole of the outer portion of the upper spring,
The upper surface of the housing includes a first area overlapping the magnet in the optical axis direction, and a second area extending from the first area and not overlapping the magnet in the optical axis direction,
The protrusion of the housing is disposed in the second area of the upper surface of the housing,
The housing includes a second hole formed in the first region of the housing,
An adhesive is introduced between the first region of the housing and the upper surface of the magnet through the second hole of the first region of the housing,
The housing includes a fourth hole recessed from the inner surface of the housing and in which the magnet is disposed,
The magnet includes 6 faces,
When the magnet is disposed in the fourth hole of the housing, only one of the six surfaces of the magnet is exposed. The method of claim 1,
The first region of the upper surface of the housing overlaps the connecting portion of the upper spring in the optical axis direction. The method of claim 1,
The housing includes a first side and a second side, and a corner disposed between the first side and the second side,
The first region of the housing is a lens driving motor disposed at a position corresponding to the corner of the housing. housing;
A bobbin disposed in the housing;
A coil disposed on the bobbin;
A magnet disposed in the housing and facing the coil; And
Includes an upper spring connecting the bobbin and the housing,
The upper spring includes an inner portion coupled to an upper surface of the bobbin, an outer portion coupled to an upper surface of the housing, and a connection portion connecting the inner portion and the outer portion,
The upper spring includes a first hole formed on the outer portion,
The housing includes a protrusion protruding from the upper surface of the housing and formed at a position corresponding to the first hole of the outer portion of the upper spring,
The upper surface of the housing includes a first area overlapping the magnet in the optical axis direction, and a second area extending from the first area and not overlapping the magnet in the optical axis direction,
The protrusion of the housing is disposed in the second area of the upper surface of the housing,
The housing includes a second hole formed in the first region of the housing,
An adhesive is introduced between the first region of the housing and the upper surface of the magnet through the second hole of the first region of the housing,
The upper spring includes a third hole formed in the inner portion,
The bobbin includes a protrusion protruding from the upper surface of the bobbin and formed at a position corresponding to the third hole in the inner portion of the upper spring,
At least a portion of the third hole in the inner portion of the upper spring overlaps the first hole in the outer portion of the upper spring in a direction perpendicular to the optical axis direction. delete The method of claim 1,
The fourth hole in the housing exposes a surface of the magnet facing the coil. The method of claim 1,
The fourth hole of the housing includes a first surface facing the upper surface of the magnet and a second surface facing the lower surface of the magnet,
A lens driving motor in which an adhesive is disposed between the first surface of the fourth hole of the housing and the upper surface of the magnet. The method of claim 1,
The fourth hole of the housing is a lens driving motor having a shape corresponding to the magnet. housing;
A bobbin disposed in the housing;
A coil disposed on the bobbin;
A magnet disposed in the housing and facing the coil; And
Includes an upper spring connecting the bobbin and the housing,
The upper spring includes an inner portion coupled to an upper surface of the bobbin, an outer portion coupled to an upper surface of the housing, and a connection portion connecting the inner portion and the outer portion,
The upper spring includes a first hole formed on the outer portion,
The housing includes a protrusion protruding from the upper surface of the housing and formed at a position corresponding to the first hole of the outer portion of the upper spring,
The upper surface of the housing includes a first area overlapping the magnet in the optical axis direction, and a second area extending from the first area and not overlapping the magnet in the optical axis direction,
The protrusion of the housing is disposed in the second area of the upper surface of the housing,
The housing includes a second hole formed in the first region of the housing,
An adhesive is introduced between the first region of the housing and the upper surface of the magnet through the second hole of the first region of the housing,
The housing includes a fourth hole recessed from the inner surface of the housing and in which the magnet is disposed,
The magnet includes a first surface facing the coil, a second surface disposed opposite the first surface, a third surface and a fourth surface connecting the first surface and the second surface, and the housing And a fifth surface opposite to the upper surface of and a sixth surface disposed on the opposite side of the fifth surface,
The fourth hole of the housing includes a contact surface respectively contacting the second to sixth surfaces of the magnet,
A lens driving motor having an adhesive disposed on the contact surface of the fourth hole of the housing. Printed circuit board;
An image sensor disposed on the printed circuit board;
The lens driving motor of claim 1;
A camera module including a lens coupled to the bobbin of the lens driving motor and disposed at a position corresponding to the image sensor. A portable terminal comprising the camera module of claim 10. housing;
A bobbin disposed in the housing;
A coil disposed on the bobbin;
A magnet disposed in the housing and facing the coil; And
Includes an upper spring connecting the bobbin and the housing,
The upper spring includes an inner portion coupled to an upper surface of the bobbin, an outer portion coupled to an upper surface of the housing, and a connection portion connecting the inner portion and the outer portion,
The upper spring includes a first hole formed on the outer portion,
The housing is formed on the upper surface of the housing, a second hole through which an adhesive is introduced between the upper surface of the housing and the upper surface of the magnet, and the first hole protruding from the upper surface of the housing and at the outer portion of the upper spring And a protrusion formed at a position corresponding to and a fourth hole recessed from the inner surface of the housing and in which the magnet is disposed,
The protrusion of the housing does not overlap the magnet in the optical axis direction,
The second hole of the howe overlaps with the magnet in the optical axis direction,
The magnet includes a first surface facing the coil, a second surface disposed opposite the first surface, a third surface and a fourth surface connecting the first surface and the second surface, and the housing And a fifth surface facing the upper surface of and a sixth surface disposed opposite to the fifth surface,
The fourth hole of the housing includes a contact surface respectively contacting the second to sixth surfaces of the magnet,
A lens driving motor having an adhesive disposed on the contact surface of the fourth hole of the housing. The method of claim 12,
The upper surface of the housing includes a first area overlapping the magnet in the optical axis direction, and a second area extending from the first area and not overlapping the magnet in the optical axis direction,
The lens driving motor is disposed in the second region of the upper surface of the housing, the protrusion of the housing. The method of claim 12,
The upper surface of the housing includes a first area overlapping the magnet in the optical axis direction, and a second area extending from the first area and not overlapping the magnet in the optical axis direction,
The housing includes a first side and a second side, and a corner disposed between the first side and the second side,
The first region of the housing is a lens driving motor disposed at a position corresponding to the corner of the housing.

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