KR20220115894A - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

One embodiment of the present invention relates to a lens driving device which comprises: a cover member containing a top plate and a side plate that includes a first side plate, a second side plate, a third side plate positioned opposite the first side plate, and a fourth side plate positioned opposite the second side plate; a bobbin disposed within the cover member; a coil placed on the outer surface of the bobbin; a magnet including a first magnet disposed on the first side plate of the cover member and a second magnet disposed on the third side plate; an upper elastic member coupled to the inside of the top plate and the upper part of the bobbin; and a lower elastic member coupled to the lower part of the side plate of the cover member and a lower part of the bobbin, wherein the magnet is not disposed on the second and fourth side plates and the upper elastic member includes a first outer frame coupled to the inside of the upper plate. The first outer frame includes a first joint unit disposed to be closer to the second side plate than the first side plate and the third side plate. Accordingly, the number of components can be reduced and power consumption can be saved and stronger electromagnetic force can be ensured.

Description

A lens driving device, and a camera module and an optical device including the same

The embodiment relates to a lens driving device, a camera module and an optical device including the same.

Since it is difficult to apply the technology of a voice coil motor (VCM) used in an existing general camera module to a camera module for ultra-small size and low power consumption, research related thereto has been actively conducted.

Demand and production of electronic products such as smartphones and camera-equipped cell phones are increasing. Cameras for mobile phones are on the trend of high resolution and miniaturization, and accordingly, actuators are becoming smaller, larger diameter, and multi-functional. In order to realize a high-resolution mobile phone camera, additional functions such as performance improvement of mobile phone camera, auto focusing, shutter shake improvement, and zoom function are required. For information related to the camera module, see Patent Publication No. 10-2015-0008662 (published on January 23, 2015) and US Patent Publication No. US 2011/0141564 (published on: June 16, 2011) can do.

The embodiment can reduce the number of parts, reduce power consumption and secure stronger electromagnetic force, and suppress spatial interference between the lower spring and the cover member and between the lower spring and the base according to AF (Auto Focusing) It provides a lens driving device, and a camera module and an optical device including the same.

A lens driving device according to an embodiment includes a side plate including an upper plate, a first side plate, a second side plate, a third side plate positioned opposite to the first side plate, and a fourth side plate positioned opposite to the second side plate to the cover member; a bobbin disposed within the cover member; a coil disposed on an outer surface of the bobbin; a magnet including a first magnet disposed on the first side plate of the cover member and a second magnet disposed on the third side plate; an upper elastic member coupled to an inner side of the upper plate and an upper portion of the bobbin; and a lower elastic member coupled to a lower portion of the side plate and a lower portion of the bobbin of the cover member, wherein the magnet is not disposed on the second and fourth side plates, and the upper elastic member is the inner side of the upper plate and a first outer frame coupled to the first outer frame, wherein the first outer frame includes a first portion disposed closer to the second side plate than to the first side plate and the third side plate.

The first outer frame may include a second portion disposed closer to the fourth side plate than the first and third side plates.

The cover member is disposed on the inner surface of the second side plate and includes a first protrusion that protrudes from the outer surface of the second side plate toward the inner surface, and the first portion of the first outer frame includes the second side plate. It may be positioned between a corner of the cover member in contact with the first protrusion.

The cover member is disposed on the inner surface of the fourth side plate and includes a second protrusion protruding from the outer surface of the fourth side plate to the inner surface, and the second portion of the first outer frame is the fourth side plate. It may be positioned between a corner of the cover member in contact with the second protrusion.

The cover member may include a groove formed inside the cover member, and the first portion of the first outer frame may be disposed in the groove of the cover member.

The lower elastic member includes a second outer frame coupled to the lower portion of the side plate of the cover member, and the second outer frame is located between adjacent two side plates among the first to fourth side plates. It may be coupled to a corner portion of the cover member.

The cover member may include a coupling protrusion formed in the corner portion of the cover member, and the second outer frame may include a through hole coupled to the coupling protrusion.

The cover member includes a first groove formed in the first side plate and a second groove formed in the third side plate, the first magnet is disposed in the first groove, and the second magnet is the second It may be disposed within the groove.

The lens driving device may include a base disposed under the cover member and including a side portion and a corner portion, and the corner portion of the base may be engaged with the corner portion of the cover member.

The upper elastic member may include a first inner frame coupled to an upper portion of the bobbin; and a first connection frame connecting the first outer frame and the first inner frame.

The lower elastic member may include a second inner frame coupled to the lower portion of the bobbin; and a second connection frame connecting the second inner frame and the second outer frame.

a first coil unit disposed in a first area of an outer peripheral surface of the bobbin and facing the first magnet; and a second coil unit disposed in a second region of the outer circumferential surface of the bobbin and facing the second magnet.

Each of the first coil unit and the second coil unit may be wound in a clockwise or counterclockwise direction about an axis perpendicular to the optical axis.

The coil may include a connection line connecting the first coil unit and the second coil unit to each other. The lower elastic member may include a first lower spring and a second lower spring spaced apart from each other, the first coil unit may be connected to the first lower spring, and the second coil unit may be connected to the second lower spring. have.

The cover member may include at least one first through hole formed in the first side plate and connected to the first groove and a second through hole connected to the second groove formed in the third side plate.

Alternatively, the lens driving device may include a base disposed under the cover member, each of the first and second lower springs comprising: a second outer frame coupled to the lower portion of the side plate of the cover member; a second inner frame coupled to the lower portion of the bobbin; a second connection frame connecting the second inner frame and the second outer frame; and a connection terminal bent from the second outer frame and disposed on an outer surface of the base.

The cover member may include a protrusion that protrudes from a lower surface of the upper plate, and the groove of the cover member may be formed on a lower surface of the protrusion of the cover member.

A lens driving device according to another embodiment includes a side plate including an upper plate, a first side plate, a second side plate, a third side plate positioned opposite to the first side plate, and a fourth side plate positioned opposite to the second side plate. a cover member comprising; a bobbin disposed within the cover member; a coil disposed on an outer surface of the bobbin; a magnet including a first magnet disposed on the first side plate of the cover member and a second magnet disposed on the third side plate; an upper elastic member coupled to an inner side of the upper plate and an upper portion of the bobbin; and a lower elastic member coupled to a lower portion of the side plate of the cover member and a lower portion of the bobbin, wherein the magnet is not disposed on the second and fourth side plates, and the cover member is an inner surface of the second side plate. and a protrusion protruding from the outer surface of the second side plate to the inner surface, wherein the upper elastic member is positioned between a corner of the cover member in contact with the second side plate and the protrusion of the lower surface of the upper plate. It includes a portion coupled with a region.

The embodiment can reduce the number of parts, reduce power consumption and secure stronger electromagnetic force, and suppress spatial interference between the lower spring and the cover member and between the lower spring and the base according to AF driving.

1 is a perspective view of a lens driving device according to an embodiment.
FIG. 2 is a perspective view of the lens driving device excluding the cover member of FIG. 1 .
FIG. 3A is a first perspective view of the bobbin shown in FIG. 1 ;
FIG. 3B is a second perspective view of the bobbin shown in FIG. 1 ;
Figure 3c shows a perspective view of the bobbin and the coil.
FIG. 4A is a first perspective view of the cover member shown in FIG. 1 ;
FIG. 4B is a second perspective view of the cover member shown in FIG. 1 ;
4C is a third perspective view of the cover member on which the magnet is mounted.
4D is an enlarged view of a corner portion of the cover member 300 shown in FIG. 4B .
5A shows a perspective view of a cover member to which a magnet and an upper elastic member are mounted.
5B is a perspective view showing the coupling of the cover member, the bobbin, the magnet, the upper elastic member, and the lower elastic member.
6 shows a perspective view of the lower elastic member and the base.
7 shows a lower elastic member disposed on the base.
FIG. 8 is a bottom perspective view of the lens driving device shown in FIG. 1 .
9 shows the lens driving device shown in FIG. 1 and a lens mounted thereon.
10 is an exploded perspective view of a camera module according to an embodiment.
11 is a perspective view of a portable terminal according to an embodiment.
12 is a block diagram of the portable terminal shown in FIG. 11 .

Hereinafter, the embodiments will be clearly revealed through the accompanying drawings and the description of the embodiments. In the description of an embodiment, each layer (film), region, pattern or structure is “on” or “under” the substrate, each layer (film), region, pad or pattern. In the case of being described as being formed on, "on" and "under" include both "directly" or "indirectly" formed through another layer. do. In addition, the criteria for the upper / upper or lower / lower of each layer will be described with reference to the drawings. Also, like reference numerals denote like elements throughout the description of the drawings.

Hereinafter, a lens driving apparatus according to an embodiment will be described with reference to the accompanying drawings. For convenience of description, the lens driving apparatus according to the embodiment is described using a Cartesian coordinate system (x, y, z), but may be described using other coordinate systems, and the embodiment is not limited thereto. In each figure, the x-axis and the y-axis mean a direction perpendicular to the z-axis, which is the optical axis direction, and the optical axis (OA) direction or the z-axis direction parallel to the optical axis (OA) is referred to as a 'first direction', and x The axial direction may be referred to as a 'second direction' and the y-axis direction may be referred to as a 'third direction'.

An 'auto-focusing device' applied to a small camera module of a mobile device such as a smart phone or a tablet PC is a device that automatically focuses an image of a subject onto an image sensor surface. Such an auto-focusing device may be configured in various ways, and the lens driving device according to an embodiment may perform an auto-focusing operation by moving an optical module including at least one lens in a first direction.

1 is a perspective view of a lens driving device 100 according to an embodiment, and FIG. 2 is a perspective view of the lens driving device 100 excluding the cover member 300 of FIG. 1 .

1 and 2, the lens driving device 100 is a cover member 300, a bobbin (Bobbin, 110), a coil (coil, 120), a magnet (Magnet, 130), an upper elastic member (Upper elastic member) , 150), a lower elastic member (Lower elastic member, 160), and a base base, 210).

First, the bobbin 110 for mounting a lens will be described.

FIG. 3A is a first perspective view of the bobbin 110 shown in FIG. 1 , FIG. 3B is a second perspective view of the bobbin 110 shown in FIG. 1 , and FIG. 3C is a perspective view of the bobbin 110 and the coil 120 . indicates

1, 2, and 3A to 3C , the bobbin 110 is disposed in the cover member 300 and is rotated in the first direction by electromagnetic interaction between the coil 120 and the magnet 130 . can move

A lens (not shown) may be directly coupled to the inner surface 110a of the bobbin 110 , but is not limited thereto. For example, the bobbin 110 may include a lens barrel (not shown) for installing at least one lens therein, and the lens barrel may be coupled to the inside of the bobbin 110 in various ways.

The bobbin 110 may have an opening 101 for mounting a lens or a lens barrel. The opening shape of the bobbin 110 may match the shape of a mounted lens or lens barrel. For example, the opening shape of the bobbin 110 may be circular, oval, or polygonal, but is not limited thereto.

The bobbin 110 may include at least one first coupling part 21 positioned on an upper portion or an upper surface and to which the first inner frame 151 of the upper elastic member 150 is coupled and fixed. The first coupling part 21 of FIG. 3A may have a planar shape, but is not limited thereto, and in another embodiment, it may have a coupling protrusion or coupling groove shape.

In addition, the bobbin 110 may include at least one second coupling portion 117a, 117b positioned on the lower or lower surface and to which the second inner frames 161a and 161b of the lower elastic member 160 are coupled and fixed. The second coupling portions 117a and 117b may be in the form of coupling protrusions or coupling grooves.

An upper escape groove 112a corresponding to or aligned with the first frame connection part 153 of the upper elastic member 150 may be provided on an upper surface of the bobbin 110 , and a lower elastic member 160 on a lower surface of the bobbin 110 . ) may be provided with a lower escape groove (112b) corresponding to or aligned with the second frame connection portion (163).

When the bobbin 110 is moved in the first direction by the upper escape groove 112a and the lower escape groove 112b, spatial interference between the first and second frame connection parts 153 and 163 and the bobbin 110 is reduced. It can be removed, so that the first and second frame connection parts 153 and 163 can be elastically deformed more easily.

The bobbin 110 may include a stopper 111a protruding upward from the upper surface, and may include a stopper 111b protruding downward from the lower surface.

The bobbin 110 may include first side portions 110b - 1 and second side portions 110b - 2 .

Each of the second side portions 110b - 2 may be positioned between two adjacent first side portions. The length of each of the first side portions 110b-1) in the horizontal direction may be longer than the length of each of the second side portions in the horizontal direction, but is not limited thereto, and the lengths of both may be the same or opposite to each other. .

The bobbin 110 may include at least one protrusion 113 for mounting the coil 120 on the outer surface 110b. For example, the at least one protrusion 113 may be provided on at least one of the first side portions 110b-1 of the bobbin 110, but is not limited thereto, and in another embodiment, the first side portions or the second side portions 110b-1 It may be provided on at least one of the sides. For example, at least one protrusion 113 may be provided on each of the two first side portions 110b - 1 of the bobbin 110 facing each other.

In addition, a groove 45a for arranging a portion of the first coil ring 120a may be provided at any one first side of the bobbin 110 in which the protrusion 113 is provided, and the bobbin in which the protrusion 113 is provided. A groove 45a for arranging a portion of the second coil ring 120b may be provided at the other first side of 110 .

In addition, a connection line connecting the first coil ring 120a and the second coil ring 120b is disposed on the outer surfaces of the first side portions 110b-1 and the second side portions 110b-2 of the bobbin 110 . A groove 45b may be provided. The groove 45b may suppress separation of the connection line of the coil 120 .

In the embodiment shown in FIG. 3A , a protrusion is provided on the bobbin 110 for mounting the coil 120 , but the present invention is not limited thereto, and a groove may be provided in another embodiment. In another embodiment, the bobbin 110 may not have a groove or protrusion for mounting the coil 120 , and the coil 120 is wound directly on the outer surface 110b of the bobbin 110 without a groove or protrusion. It can be rolled up or fixed.

The bobbin 110 is provided on the upper portion, and may include a protruding support 115 having an opening 101 provided. The protruding support 115 is in the inner direction or the outer surface 110b with respect to the inner surface 110b. It may protrude toward the inner surface 110a. The protruding support 115 may support one end of the lens, and may prevent the lens from being separated from the bobbin 110 .

A groove 15 may be provided on a side surface of the protruding support 115 of the bobbin 110 .

Next, the coil 120 will be described.

It is disposed on the outer circumferential surface of the bobbin 110 of the coil 120 , and electromagnetically interacts with the magnet 130 disposed on the cover member 300 .

A driving signal may be applied to the coil 120 to generate an electromagnetic force by electromagnetic interaction with the magnet 130 . In this case, the driving signal may include an AC signal or an AC signal and a DC signal. For example, the AC signal may be a sine wave or a pulse signal (eg, PWM (Pulse Width Modulation)) signal.

The bobbin 110 elastically supported by the upper elastic member 150 and the lower elastic member 160 may be moved in the first direction by electromagnetic force due to electromagnetic interaction between the coil 120 and the magnet 130 . .

In addition, by controlling the strength and/or the polarity of the driving signal, the strength and/or direction of the electromagnetic force may be controlled. The movement of the bobbin 110 in the first direction may be controlled by the controlled electromagnetic force, and thereby, an auto-focusing function may be performed on the lens mounted in the lens driving device.

The coil 120 may be disposed on at least one of the first sides or the second sides of the bobbin 110 .

It may be disposed on two first sides of the bobbin 110 facing each other.

The coil 120 includes a first coil ring 120a disposed on either one of the two first sides of the bobbin 110 facing each other, and two first sides of the bobbin 110 facing each other. It may include a first coil ring 120b disposed on the other one, and a connection line (not shown) connecting the first coil ring 120a and the second coil ring 120b to each other.

The area of the outer surface of the bobbin 110 in which the first coiling 120a is located may be opposite to the area of the outer surface of the bobbin 110 in which the second coiling 120b is located.

The connecting line may be located on the outer surface of the bobbin 110 so that the first coil ring 120a and the second coil ring 120b are connected to each other.

Each of the first coil ring 120a and the second coil ring 120b may be implemented in the form of a coil ring wound in a clockwise or counterclockwise direction around an axis perpendicular to the optical axis, but is not limited thereto.

Each of the first coil ring 120a and the second coil ring 120b may be inserted or mounted on the protrusion 113 of the first side portion 110b - 1 of the bobbin 110 .

For example, the number of coil rings included in the coil 120 may be the same as the number of magnets 130 , but is not limited thereto.

The coil 120 may be connected to the first and second springs 160a and 160b.

For example, one end of the first coil ring 120a may be connected to the first lower spring 160a, and one end of the second coil ring 120b may be connected to the second lower spring 160b. In addition, the other end of the first coil ring 120a may be connected to one end of the connection line, and the other end of the second coil ring 120b may be connected to the other end of the connection line.

In another embodiment, the coil 120 may include two electrically separated first and second coil rings, and the separated first and second coil rings are the first and second coil rings of the lower elastic member, respectively. It may be electrically connected to the second springs, and a drive signal may be provided through the first and second springs.

Next, the cover member 300 will be described. The cover member 300 may be expressed as a cover can.

4A is a first perspective view of the cover member 300 shown in FIG. 1 , FIG. 4B is a second perspective view of the cover member 300 shown in FIG. 1 , and FIG. 4C is a cover member to which the magnet 130 is mounted. It is a third perspective view of 300 , and FIG. 4D shows an enlarged view of the corner portion 40b of the cover member 300 shown in FIG. 4B . 4A is a perspective view of the cover member 300 viewed from above, and FIGS. 4B and 4C may be perspective views of the cover member 300 viewed from below.

4A to 4D , the cover member 300 may form an accommodation space together with the base 210 , and a bobbin 110 , a coil 120 , a magnet 130 , and an upper portion in the accommodation space. The elastic member 150 and the lower elastic member 160 may be accommodated therein.

The cover member 300 may include an upper plate 3 and a side plate 4 positioned below the upper plate 3 , and may be in the form of a box with an open lower portion. For example, the side plate 4 may include side plates 20a to 20d, and corner portions 40a to 40d.

The shape of the upper plate 3 of the cover member 300 may be a polygon, for example, a square or octagonal shape, a circular shape, an oval shape, or a curved shape.

Each of the corner portions 40a to 40d of the cover member 300 may be positioned between two adjacent side plates 20a and 20b, 20b and 20c, 20c and 20d, and 20d and 20a of the cover member 300 . .

Also, the side plate 4 of the cover member 300 may include an outer portion 5a and an inner portion 5b positioned inside the outer portion 5a. The lower end of the inner portion 5a may protrude based on the lower surface of the lower end of the outer portion 5a, but is not limited thereto.

The outer part 5a and the inner part 5b may be injection-molded products simultaneously injected with the same material, and may be integrally formed.

The lower end of the side plate 4 of the cover member 300 may be in contact with the edge of the upper surface of the base 210 , and may be coupled to the base 210 by an adhesive member.

The cover member 300 may have an opening 101a in the upper plate 3 for exposing a lens (not shown) mounted on the bobbin 110 to the outside.

The material of the cover member 300 may be made of a material capable of injection molding, for example, plastic.

At the lower or lower end of the side plate 4 of the cover member 300 , protrusions 6a and 6b coupled with the groove 82 of the base 210 to improve bonding force with the base 210 , and the protrusion of the base 210 . Groove portions 18a and 18b coupled to the 84 may be provided.

The protrusions 6a and 6b are provided under or at the lower end of at least one of the side plates 20a to 20d of the cover member 300 , and the grooves 18a and 18b are the side plates 20a to 20d of the cover member 300 . at least one of the lower or lower portions is provided.

For example, protrusions 6a and 6b and grooves 18a and 18b may be provided on either side of the cover member 300 .

For example, the protrusions 6a and 6b may be provided on the two side plates 20a to 20d facing each other of the cover member 300, and the outer portion 5a of the two side plates 20b and 20d facing each other. can be placed in

Also, for example, the groove portions 18a and 18b may be provided in the two side plates 20a to 20d facing each other of the cover member 300 , and the inner portion 5b of the two side plates 20b and 20d facing each other. ) can be placed in

On the other hand, in another embodiment, the protrusions 6a and 6b may be provided on the inner side, and the grooves 18a and 18b may be provided on the outer side.

For example, the grooves 18a and 18b may be positioned on one side and the other side of the protrusion 6a or 6b, but the present invention is not limited thereto.

Mounting grooves 25a and 25b for mounting the magnet 130 are provided on the inner surface of the side plate 4 of the cover member 300 .

The mounting grooves 25a and 25b of the cover member 300 are provided on the inner surface of at least one of the side plates 20a to 20d of the cover member 300 .

For example, the mounting grooves 25a and 25b of the cover member 300 may be provided on the two side plates 20a and 20c facing each other. For example, the mounting grooves 25a and 25b may be provided in side plates different from the side plates in which the protrusions 6a and 6b and the grooves 18a and 18b are provided.

The lower portions of the mounting grooves 25a and 25b of the cover member 300 may be opened to facilitate mounting of the magnet 130 , and the coil 120 to increase electromagnetic force due to interaction with the coil 120 . ) may have a first opening on the first side facing.

In addition, on the inner surface of the side plates 20a and 20c of the cover member 300 to which the magnets 130a and 130b are mounted, a first protrusion 8a may be provided adjacent to the first opening of the mounting grooves 25a and 25b. have.

Since the thickness of the side plates 20a and 20c of the cover member 300 in which the mounting grooves 25a and 25b are formed is thin, the side plates 20a and 20c may have poor durability, and the first protrusion 8a may be subjected to an impact or external force. This can prevent the side plates 20a and 20c from being deformed or damaged, and can serve to reinforce the mounting grooves 25a and 25b to stably support the magnets 130a and 130b.

As shown in Figure 4c, a part of the magnet 130 mounted to the mounting grooves (25a, 25b) may protrude out of the mounting grooves (25a, 25b).

For example, the lower end of the magnet 130 mounted in the mounting grooves 25a and 25b may protrude out of an opening provided in the lower portion of the mounting grooves 25a and 25b.

For example, the lower end of the magnet 130 mounted on the mounting grooves 25a and 25b is lower than the second outer frames 162a1 , 162a2 , 162b1 , 162b2 of the lower elastic member 160 mounted on the cover member 300 ). can be located

At this time, a portion of the magnet 130 protruding out of the mounting grooves 25a and 25b may be inserted or fitted into the seating portion 86 of the base 210 . For example, the lower or lower surface of the seating portion 86 may have a step difference from the upper surface of the lower plate of the base 210 , but is not limited thereto.

For example, in order to stably support the lower elastic member 160 and increase durability, the thickness of the inner portion 5b of each of the corner portions 40a to 40d is the thickness of the inner portion 5b of each of the side plates 20a to 20d. could be thicker.

At least one third coupling part 7a for coupling the outer frame 151 of the upper elastic member 150 to the lower surface 3a of the upper plate 3 of the cover member 300 may be provided.

The third coupling part 7a may be a recess or a hole, but is not limited thereto, and may have a protrusion shape in another embodiment.

The third coupling part 7a of the cover member 300 may be provided on the lower surface of the upper plate 3 adjacent to at least one of the corner parts 40a to 40d.

For example, the third coupling portion 7a of the cover member 300 may include each corner portion 40a to 40d and each corner portion 40a to 40d and the upper plate 3 adjacent to the boundary line of any one adjacent side plate. It may be disposed on the lower surface, but is not limited thereto.

On the lower surface of the upper plate 3 of the cover member 300 adjacent to the corner portions 40a to 40d, a protrusion 10a protruding from the upper surface to the lower surface of the upper plate 3 may be provided, and a third coupling part ( 7a) may be formed on the lower surface of the protrusion 10a, for example, the protrusion 10a.

For example, the cover member 300 may include four protrusions 10a formed adjacent to each corner portion 40a to 40d, but is not limited thereto.

A first escape groove 7b for reducing spatial interference with the upper elastic member 150 may be provided on a lower surface of the protrusion 10a of the cover member 300 . The first escape groove 7b may be positioned adjacent to the third coupling portion 7a.

The first escape groove 7b may correspond to a portion 701 of the first connection frame 153 connected to the first outer frame 152 of the upper elastic member 150 . The first escape groove 7b may serve to allow a portion 701 of the first connection frame 153 to move easily and smoothly in an upper direction or a lower direction. The first escape groove 7b may have an opening opened to the inner surface of the protrusion 10a so that a portion 701 of the first connection frame 153 can be seated.

For example, the depth of the first escape groove 7b based on the lower surface of the protrusion 10a may be greater than the depth of the groove 7a corresponding to the third coupling portion 7a.

In another embodiment, the third coupling portion of the cover member 300 is provided on the lower surface of the upper plate 3 adjacent to each corner portion 40a to 40d or the lower surface of the upper plate 3 adjacent to each side plate 20a to 20d. it might be

A protrusion 9a protruding in an inner direction or an inner surface direction from the outer surface of the side plate 4 may be provided on inner surfaces of the side plates 20a to 20d adjacent to the corner portions 40a to 40d.

The upper portion of the protrusion 9a may be in contact with the lower surface 3a of the upper plate 3 . For example, an upper portion of the protrusion 9a may be in contact with a lower surface of the protrusion 10a.

The third coupling portion 7a may be positioned between the corner portions 40a to 40d and the protrusion 9a adjacent thereto.

For example, the protrusion 9a may be provided on the inner surface of the side plates 20a to 20d of the cover member 300 adjacent to the third coupling portion 7a.

The protrusion 9a may guide the outer frame 151 of the upper elastic member 150 to be mounted or fixed to the third coupling part 7a, and the outer frame 151 may be attached to the third coupling part ( It can be suppressed from being easily separated from 7a).

At least one fourth coupling part 145a , 145b for coupling the lower elastic member 160 to a lower portion or a lower end of the side plate 4 of the cover member 300 may be provided.

The fourth coupling portions 145a and 145b may have a protrusion or coupling protrusion shape, but are not limited thereto, and may have a groove shape in another embodiment.

For example, each of the corner portions 40a to 40d may be provided with two first coupling protrusions and a second coupling protrusion spaced apart from each other. The diameter of the first coupling protrusion and the diameter of the second coupling protrusion may be different from each other. For example, the diameter of the fourth coupling part 145a may be larger than the diameter of the fourth coupling part 145b.

For example, at least one fourth coupling part 145a, 145b may be provided on the lower end, lower part, or lower surface of each of the corner parts 40a to 40d of the cover member 300, and the fourth coupling parts 145a and 145b. ) may be located in the inner portion 5b of the corner portions 40a to 40d, but is not limited thereto. In another embodiment, the fourth coupling portions 145a and 145b may be located below or below at least one of the side plates 20a to 20d of the cover member 300 .

Grooves 51a to 51d into which the guide member 216 of the base 210 are inserted, fastened, or coupled may be provided at a lower or lower end of the side plate 4 of the cover member 300 .

The grooves 51a to 51d of the cover member 300 may be provided under or under each of the corner parts 40a to 40d. For example, the grooves 51a to 51d may be provided between the outer portion 5a and the inner portion 5b of each of the corner portions 40a to 40d, but is not limited thereto. For example, the grooves 51a to 51d may be disposed at corners of the corner portions 40a to 40d.

For example, the grooves 51a to 51d of the cover member 300 and the guide member 216 of the base 210 may be coupled to each other by an adhesive member, and the cover member 300 may be coupled to the base 210 . .

At least one through hole 30a and 30b may be provided in the side portions 20a and 20c on which the magnet 130 is disposed. For example, two through holes 30a and 30b may be provided on the two side portions 20a and 20c facing each other, and the through holes 30a and 30b may be connected to the mounting grooves 25a and 25b. The through holes 30a and 30b may serve as an inlet for inserting an adhesive member for fixing the magnet 130 to the mounting grooves 25a and 25b.

Next, the magnet 130 will be described.

In the initial position of the bobbin 110, the magnets 130a and 130b may be disposed on the side plates 20a and 20c of the cover member 300 to correspond to or aligned with the first and second coil rings 120a and 120b. have.

Here, the initial position of the bobbin 110 is the initial position of the AF movable part in a state in which power is not applied to the coil 120 , or the upper elastic member 150 and the lower elastic member 160 are moved only by the weight of the AF movable part. It may be a position where the AF movable part is placed as it is elastically deformed.

For example, the initial position of the bobbin 110 is a position at which the AF movable part is placed when gravity acts in the direction from the bobbin 110 to the base 210 or vice versa when gravity acts in the direction from the base 210 to the bobbin 110 . can The AF movable unit may include the bobbin 110 and components mounted on the bobbin 110 , for example, the coil 120 .

For example, in the initial position of the bobbin 100, the magnets 130a and 130b overlap or face the coil rings 120a and 120b in a direction perpendicular to the optical axis or from the magnet 130 to the bobbin 110. It may be disposed on the cover member 300 to be seen.

As described above, the magnets 130a and 130b may be disposed in the seating grooves 25a and 25b of the cover member 300 .

The shape of the magnets 130a and 130b may have a shape corresponding to the side portions 20a and 20c of the cover member 300 on which the magnets 130a and 130b are disposed, for example, a rectangular parallelepiped shape, but is not limited thereto.

The magnets 130a and 130b may be unipolar magnetized magnets or bipolar magnetized magnets disposed so that the surface facing the coil 120 is the S pole and the outer surface is the N pole. However, the embodiment is not limited thereto, and the reverse configuration is also possible. In addition, according to the arrangement of the coil 120, the position of the S pole and the N pole of the magnet 130 may be set so that electromagnetic force by interaction can be generated.

For example, the magnets 130a and 130b may be bipolar magnetized magnets divided into two in a direction perpendicular to the optical axis or in the optical axis direction. In this case, the first magnets 130a and 130b may be implemented with ferrite, alnico, a rare earth magnet, or the like.

For example, the magnets 130a and 130b may include a first magnet part, a second magnet part, and a non-magnetic barrier rib. The first magnet part and the second magnet part may be spaced apart from each other, and the non-magnetic partition wall may be positioned between the first magnet part and the second magnet part.

The non-magnetic barrier rib may include a section having little polarity as a portion having substantially no magnetism, and may be filled with air or made of a non-magnetic material.

In the embodiment, the number of magnets 130 is two, but the number of magnets 130 is not limited thereto and the number of magnets 130 may be two or more, and the coil rings 120a and 120b and the facing magnets 130a and 130b are faces. may be formed in a flat surface, but is not limited thereto and may be formed in a curved surface.

Next, the upper elastic member 150 and the lower elastic member 160 will be described.

5A is a perspective view of the cover member 300 on which the magnet 130 and the upper elastic member 150 are mounted, and FIG. 5B is the cover member 300, the bobbin 110, the magnet 130, and the upper elastic member ( 150), and a perspective view showing the coupling of the lower elastic member, FIG. 6 is a perspective view of the lower elastic member 160 and the base.

5A, 5B, and 6, the upper elastic member 150 and the lower elastic member 160 are coupled to the bobbin 110 and the cover member 300, and elastically support the bobbin 110. .

The upper elastic member 150 may be coupled to the upper portion (upper surface or upper end) of the bobbin 110 and the lower portion (lower surface or lower end) of the upper plate 3 of the cover member 300 .

In addition, the lower elastic member 160 may be coupled to the lower (or lower, or lower end) of the bobbin 110 and the lower (or lower, or lower) of the corner portions 40a to 20d of the cover member 300 .

In FIG. 5A , the upper elastic member 150 may include one spring, and the lower elastic member 160 may include a plurality of springs, but is not limited thereto.

The upper elastic member 150 includes a first inner frame 151 coupled to the upper portion of the bobbin 110, a first outer frame 152 coupled to the lower surface 3a of the upper plate 30 of the cover member 300, and a first frame connection part 153 connecting the first inner frame 151 and the second outer frame 152 .

The first inner frame 151 of the upper elastic member 150 may be coupled to the first coupling part 21 of the bobbin 110 by thermal fusion or an adhesive member. In another embodiment, a through hole for coupling with the first coupling part 21 of the bobbin 110 may be provided in the first inner frame 151 .

The first outer frame 152 of the upper elastic member 150 may be coupled to the third coupling part 7 of the cover member 300 by thermal fusion or an adhesive member. For example, a through hole 152a for coupling with the third coupling part 7 of the cover member 300 may be provided in the first outer frame 152 . The through-holes 152 may be patterned in various shapes (eg, an X-shape) in order to increase a contact area with the adhesive member to improve bonding strength.

The lower elastic member 160 may include springs or lower springs that are divided or separated into two or more.

For example, the lower elastic member 160 may include a first spring 160a and a second spring 160b that are spaced apart or separated from each other.

For example, the coil 120 may be electrically connected to the first and second springs 160a and 160b.

Referring to FIG. 6 , each of the first and second springs 160a and 160b includes the second inner frames 161a and 161b coupled to the lower portion of the bobbin 110 , and the upper plate 3 of the cover member 300 . At least one second outer frame (162a1, 162a2, 162b1, 162b2) coupled to the lower surface (3a), and the second inner frame (161a, 161b) and at least one second outer frame (162a1, 162a2, 162b1, 162b2) ) may include at least one second frame connection part 163a1 , 163a2 , 163b1 , and 163b2 for connecting them.

At least one through hole 61a and 61b for coupling with the second coupling portions 117a and 117b of the bobbin 110 may be provided in the second inner frames 161a and 161b.

The second inner frames 161a and 161b may include a frame section corresponding to the magnets 130a and 130b, the outer surface of which is a straight line, and the inner surface of the inner surface of the curved frame, the through holes 61a and 61b and the second inner frame. The first and second bonding units 91 and 92 may be disposed in a frame section. Each of the first and second bonding parts 91 and 92 may be positioned between the two through holes 61a and 61b.

At least one cutout 65 through which the adhesive member permeates may be provided in at least one of the through holes 61a and 61b.

A first bonding portion 91 may be provided on the second inner frame 161a of the first spring 160a, and one end of the first coil ring 120a may have a first bonding portion 91 through solder 36a. ) can be combined with

A second bonding portion 92 may be provided on the second inner frame 161b of the second spring 160b, and one end of the second coil ring 120b may have a second bonding portion 92 through solder 36b. ) can be combined with Each of the first bonding portion 91 and the second bonding portion 92 may be formed on the outer surface of the second inner frame (161a, 161b), and outside the inner surface of the second inner frame (161, 161b). It may be in the form of protruding in the lateral direction.

At least one through hole 62a and 62b for coupling with the fourth coupling portions 145a and 145b of the cover member 300 may be provided in the second outer frames 162a1 , 162a2 , 162b1 , and 162b2 .

For example, the first spring 160a may include one second inner frame 161a, two second outer frames 162a1 and 162a2, and two second frame connection parts 163a1 and 163a2. .

Also, for example, the second spring 160b may include one second inner frame 161b, two second outer frames 162b1 and 162b2, and two second frame connection parts 163b1 and 163b2. have.

For example, two through holes 62a and 62b corresponding to the fourth coupling portions 145a and 145b of the cover member 300 may be provided in the second outer frames 162a1 , 162a2 , 162b1 , and 162b2 .

The through hole 62a may be located closer to the second frame connection portions 163a1 , 163a2 , 163b1 and 163b2 than the through hole 62b , and the diameter of the through hole 62a is larger than the diameter of the through hole 62b . can be large Since the diameter of the fourth coupling part 145a is larger than the diameter of the fourth coupling part 145b, and the diameter of the through hole 62a is larger than the diameter of the through hole 62b, the embodiment is a second frame connection part ( The bobbin 110 connected to 163a1, 163a2, 163b1, and 163b2 may be more stably supported.

The four second outer frames 162a1 , 162a2 , 162b1 , 162b2 of the lower elastic member 160 may be coupled to the lower portion of any one of the four corner portions 40a to 40d of the cover member 300 . have.

The second outer frames 162a1 , 162a2 , 162b1 , 162b2 of the first and second springs 160a and 160b are magnets 130a and 130b disposed on the side plates 20a and 20c of the cover member 300 . ) may not be disposed on the side plates 20a to 20d of the cover member 300 in order to suppress spatial interference with the cover member 300, but may be disposed only under the corner portions 40a to 40d, but is not limited thereto. In another embodiment, it may be disposed under the side plates of the cover member 300 within a range in which spatial interference with the magnets is excluded, or may be combined with the lower portions of the side plates of the cover member 300 .

The side surfaces of the second outer frames 162a1 , 162a2 , 162b1 , and 162b2 corresponding to the corners or corners of the corner portions 40a to 40d may include a bent or bent bent portion 71 . The bent portion 71 may be provided to avoid spatial interference with the grooves 51a to 51d of the cover member 300 and the guide member 216 of the base 210 .

The grooves 51a to 51d of the cover member 300 may be exposed as the second outer frames 162a1 , 162a2 , 162b1 , and 162b2 by the bent portion 71 .

For example, the bent portion 71 may be positioned around the grooves 51a to 51d of the cover member 300 , and may have a concave shape from the corners of the corner portions 40a to 40d toward the center of the cover member 300 . have. For example, the bent portion 71 may have a “b” shape, but is not limited thereto.

The first spring 160a is connected to the outer surface of any one 162a2 of the second outer frames 162a1 and 162a2 and is bent in the direction from the second outer frame 163a2 toward the base 210 to extend. One connection terminal 73a may be further included.

The second spring 160b is connected to the outer surface of any one 162b2 of the second outer frames 162b1 and 162b2 and is bent and extended in the direction from the second outer frame 163b2 toward the base 210. 2 may further include a connection terminal (73b).

For example, each of the first and second connection terminals 73a and 73b may be bent to any one of the outer surfaces of the base 210 , and may be disposed to be spaced apart from each other.

For example, the first connection terminal 73a and the second connection terminal 73b may be disposed on the first outer surface of the base 210 and may be in contact with the first outer surface.

Each of the first and second connection terminals 73a and 73b may be disposed, seated, or inserted into a corresponding one of the depressions 81a and 81b provided in the base 210 .

The first and second connection terminals 73a and 73b may be exposed from the base 210 , and both may be electrically isolated from each other.

For example, an inner surface of each of the first and second connection terminals 73a and 73b disposed in the depressions 81a and 81b may contact one surface (eg, a bottom surface) of the depressions 81a and 81b.

Also, for example, an outer surface of each of the first and second connection terminals 73a and 73b disposed in the recessed portions 81a and 81b may be exposed from the first outer surface of the base 210 , and the first and second connection terminals 73a and 73b may be exposed from the first outer surface of the base 210 . The lower ends of each of the two connection terminals 73a and 73b may be exposed from the lower surface of the base 210 .

For example, the depth of the depressions 81a and 81b may be greater than the thickness of the first and second connection terminals 73a and 73b, and the first and second connection terminals disposed in the depressions 81a and 81b. Each of the outer surfaces of the 73a and 73b may not protrude out of the recessed portions 81a and 81b.

The first and second connection terminals 73a and 73b may be formed of a conductive member in order to supply power or a signal from the outside, and may be electrically connected to external wirings or external devices by soldering or the like.

With respect to the above-described first and second connection terminals 73a and 73b, the term “connection terminal” may be used interchangeably with the terms pad part, bonding part, solder part, or electrode part.

The first connection terminal 73a may be integrally formed with the second outer frame 162a2 of the first spring 160a, and the second connection terminal 73b may be formed integrally with the second outer frame 162a2 of the second spring 160b. 162b2) and may be integrally formed, but is not limited thereto.

In another embodiment, the connection terminals for electrical connection with the external terminal are provided separately from the first spring and the second spring, and may be disposed in the depressions 81a and 81b of the base 210, solder or conductive adhesive. The connection terminal may be coupled to the second outer frame of the first and second springs by the member.

A driving signal, eg, a driving current, for driving the coil 120 may be provided through the first and second connection terminals 73a and 73b.

The first spring 160a and the second spring 160b may be disposed to face each other in the same direction as the direction in which the two magnets 130a and 130b face each other.

The upper elastic member 150 and the lower elastic member 160 may be implemented as a leaf spring, but is not limited thereto, and may be implemented as a coil spring, a suspension wire, or the like.

Each of the first frame connection part 153 and the second frame connection part 163 may be bent or curved (or curved) at least once to form a pattern of a predetermined shape.

A damper is disposed between the first frame connection part 153 of the upper elastic member 150 and the upper surface of the bobbin 110 , for example, the upper escape groove 112a in order to prevent an oscillation phenomenon when the bobbin 110 is moved. can be

Alternatively, a damper (not shown) may be disposed between the second frame connection part 163 of the lower elastic member 160 and the lower surface of the bobbin 110 , for example, the lower escape groove 112b.

Also, for example, a damper is provided at a coupling portion between each of the bobbin 110 and the cover member 300 and the upper elastic member 150 , or at a coupling portion between each of the bobbin 110 and the cover member 300 and the lower elastic member 160 . It may also be applied. For example, the damper may be silicone in a gel form.

The base 210 may be disposed under the lower elastic member 160 , and may form an accommodation space for the bobbin 110 and the housing 140 together with the cover member 300 .

The base 210 may include a lower plate and a side plate positioned on the lower plate, and may be in the form of a box with an open top.

An opening 101 of the bobbin 110 and/or an opening 101b corresponding to the opening 101a of the cover member 300 may be provided in the lower plate of the base 210 , and the side plate of the base 210 may be It may have a shape that matches or corresponds to the cover member 300 .

The side plate of the base 210 may include side portions S1 to S4 and corner portions P1 to P4 . Each of the corner portions P1 to P4 of the base 210 may be positioned between two adjacent side portions of the base 210 .

The side parts S1 to S4 of the base 210 may correspond to the side plates 20a to 20d of the cover member 300 , and the corner parts P1 to P4 of the base 210 are the cover member 300 . may correspond to the corner portions 40a to 40d of

A protrusion 11a may be provided on the upper surface of the lower plate of the base 210 adjacent to the corner portions P1 to P4. For example, the protrusion 11a may protrude from the upper surface of the base 210 in the optical axis direction or the upper direction, and the base 210 may include four protrusions 11a corresponding to the corners P1 to P4. can

The base 210 may include a guide member 216 protruding a predetermined height from the upper surface of the protrusions 11a.

For example, the guide member 216 may have a polygonal pillar shape protruding from the upper surface of the protrusion 11a provided on the lower plate of the base 210 , but is not limited thereto.

The upper surface or upper end of the guide member 216 may be positioned higher than the upper surface or upper end of the side portions S1 to S4 of the base 210 .

As the protrusion 11a having a predetermined thickness is provided, the embodiment can stably support the bobbin 110 and the lower elastic member 160, increase the durability of the base 210, and the cover member ( A stable coupling between the grooves 51a to 51d of the 300 and the guide member 216 of the base 210 can be ensured.

The above-described depressions 81a and 81b may be provided on an outer surface of any one of the side portions of the base 210 .

For example, each of the depressions 81a and 81b may include an upper opening opened to the upper surface of the side portions of the base 210 and a lower opening opened to the lower surface of the lower plate of the base 210 .

A groove 89 corresponding to the fourth coupling portion 145b of the cover member 300 may be provided on the upper surface of the lower plate of the base 210 or the upper surface of the protrusions 11a of the base 210 .

The groove 89 may be coupled to the fourth coupling portion 145b, may improve coupling force between the cover member 300 and the base 210, and may include a second outer frame 162a1 of the lower elastic member 160, 162a2 , 162b1 , and 162b2 may be stably fixed to the cover member 300 and the base 210 .

At least one of the side portions S1 to S4 of the base 210 may be provided with a groove 82 coupled to the protrusions 6a and 6b of the cover member 300 . The groove portion 82 may be in contact with an outer surface of the side portions S1 to S4 of the base 210 and may include an opening opened to the outer surface.

In addition, the side portions S2 and S4 of the base 210 in which the groove portion 82 is provided may correspond to the inner portion 5b of the cover member 300 and the protrusion portion 84 may be provided. For example, the protrusion 84 may be disposed to contact the groove 82 .

A third escape groove 88 for suppressing spatial interference with the lower elastic member 160 may be provided in the protrusions P1 to P4 of the base 210 , and one side of the third escape groove 88 may be can be opened The third escape groove 88 may be in the form of a through hole penetrating the protrusion 11a of the base 210 and exposing the upper surface of the lower plate of the base 210, but is not limited thereto. may be implemented as

7 shows the lower elastic member 160 disposed on the base 210 .

Referring to FIG. 7 , the third escape groove 88 of the base 210 may be provided at a position corresponding to a portion 702 of the second connection frame 163 connected to the second outer frame 162a1. and one side of the third escape groove 88 may be opened corresponding to a portion 702 of the second connection frame 163 . For example, the third escape groove 88 of the base 210 may have an opening on the side facing the portion 702 of the second connection frame 163 .

Because of the protrusion 11a formed on the base 210 , when the second connecting frame 163 of the lower elastic member 160 moves in a direction parallel to the optical axis, the second connecting frame 163 is the protrusion of the base 210 . Spatial interference with (11a) may occur, thereby limiting the movement of the bobbin 110.

The third escape groove 88 of the base 210 is one of the second connection frame 163 when a portion 702 of the second connection frame 163 moves downward or in a direction toward the base 210 . It may serve to reduce spatial interference between the portion 702 and the protrusion 11a of the base 210 .

In addition, as shown in Figure 4b, the lower or lower surface of the corner portions (40b to 40d) of the cover member 300, a second escape groove 60 corresponding to a portion 702 of the second connection frame 163 (60) This can be provided.

The second escape groove 60 of the cover member 300 is spaced with the cover member 300 when the portion 702 of the second connection frame 163 moves in the upward direction toward the cover member 300 . It may have a structure with an open side so that it can move without interference.

For example, the second escape groove 60 of the cover member 300 may have an opening on a side surface facing the portion 702 of the second connection frame 163 .

The second escape groove 60 of the cover member 300 and the third escape groove 88 of the base 210 may overlap each other in the optical axis direction.

When the second connection frame 163 moves in the optical axis direction by the second escape groove 60 of the cover member 300 and the third escape groove 88 of the base 210, the cover member 300 and the base ( 210), it is possible to secure sufficient space to avoid spatial interference. Due to this, the spatial restriction of movement of the bobbin 110 for AF driving can be avoided.

FIG. 8 is a bottom perspective view of the lens driving device 100 shown in FIG. 1 .

Referring to FIG. 8 , the base 210 has a lower surface of the base 210 to support the first and second contact terminals 73a and 73b, for example, a protruding support part protruding from the lower surface of the lower plate of the base 210 . It may include the ones (217a, 217b),

Each of the protruding support parts 217a and 217b may be disposed on a lower surface of the lower plate of the base 210 adjacent to the recessed parts 81a and 81b, and inner surfaces of the first and second connection terminals 73a and 73b. may come into contact with

9 shows the lens driving device 100 shown in FIG. 1 and the lens 50 mounted thereon.

Referring to FIG. 9 , the lens 50 may be inserted into the opening 101b provided in the lower plate of the base 210 and mounted on the bobbin 110 . Due to this, the embodiment can mount a lens of a large size.

In general, the magnet and the upper and lower elastic members are supported by a housing that is a separate member from the cover member. In an embodiment, the housing is removed and the magnet 130 and the upper and lower elastic members are supported by the cover member 300 to By doing so, the number of parts can be reduced.

Since the material of the cover member is an injection-molded material that can be injection molded, in the embodiment, the mounting grooves 25a and 25b for mounting the magnet 130, and the third coupling part 7 in the form of a groove coupled to the upper elastic member 150 are provided. ), and the protrusion-shaped fourth coupling portions 145a and 145b coupled to the lower elastic member 16 may be easily formed.

In addition, since the two ring-shaped driving coils 120a and 120b are mounted on the bobbin 110 , compared with a lens driving device having a coil disposed to surround the outer circumferential surface of the bobbin 110 , the embodiment consumes less. A stronger electromagnetic force can be secured at the same time as the power is lowered.

In addition, by providing the second escape groove 60 of the cover member 300 and the third escape groove 88 of the base 210, the embodiment is between the lower elastic member 160 and the cover member 300 and the lower elastic Spatial interference between the member 300 and the base 210 may be suppressed, and restrictions on movement of the bobbin 110 for AF driving may be prevented.

Meanwhile, the lens driving apparatus according to the above-described embodiment may be used in various fields, for example, a camera module or an optical device.

For example, the lens driving apparatus 100 according to the embodiment forms an image of an object in space using reflection, refraction, absorption, interference, diffraction, etc., which are characteristics of light, and aims to increase the visual power of the eye, It may be included in an optical instrument for the purpose of recording and reproducing an image by a lens, or for optical measurement, propagation or transmission of an image, and the like. For example, the optical device according to the embodiment may include a smart phone and a portable terminal equipped with a camera.

10 is an exploded perspective view of the camera module 200 according to the embodiment.

Referring to FIG. 10 , the camera module 200 includes a lens or lens barrel 400 , a lens driving device 100 , an adhesive member 612 , a filter 610 , a first holder 600 , and a second holder 800 . ), an image sensor 810 , a motion sensor 820 , a controller 830 , and a connector 840 .

The lens or lens barrel 400 may be mounted on the bobbin 110 of the lens driving device 100 .

The first holder 600 may be disposed under the base 210 of the lens driving device 100 . The filter 610 is mounted on the first holder 600 , and the first holder 600 may include a protrusion 500 on which the filter 610 is mounted.

The adhesive member 612 may couple or attach the base 210 of the lens driving device 100 to the first holder 600 . The adhesive member 612 may serve to prevent foreign substances from being introduced into the lens driving device 100 in addition to the aforementioned bonding role.

For example, the adhesive member 612 may be an epoxy, a thermosetting adhesive, or an ultraviolet curable adhesive.

The filter 610 may serve to block light of a specific frequency band in light passing through the lens barrel 400 from being incident on the image sensor 810 . The filter 610 may be an infrared cut filter, but is not limited thereto. In this case, the filter 610 may be disposed to be parallel to the x-y plane.

An opening may be formed in a portion of the first holder 600 on which the filter 610 is mounted so that light passing through the filter 610 may be incident on the image sensor 810 .

The second holder 800 may be disposed under the first holder 600 , and the image sensor 810 may be mounted on the second holder 600 . The image sensor 810 is a portion on which the light passing through the filter 610 is incident to form an image included in the light.

The second holder 800 may include various circuits, elements, controllers, etc. to convert an image formed on the image sensor 810 into an electrical signal and transmit it to an external device.

The second holder 800 may be implemented as a circuit board on which an image sensor may be mounted, a circuit pattern may be formed, and various elements may be coupled thereto.

The image sensor 810 may receive an image included in light incident through the lens driving device 100 and convert the received image into an electrical signal.

The filter 610 and the image sensor 810 may be spaced apart to face each other in the first direction.

The motion sensor 820 may be mounted on the second holder 800 , and may be electrically connected to the controller 830 through a circuit pattern provided on the second holder 800 .

The motion sensor 820 outputs rotational angular velocity information due to the movement of the camera module 200 . The motion sensor 820 may be implemented as a 2-axis or 3-axis gyro sensor, or an angular velocity sensor.

The control unit 830 is mounted on the second holder 800 . The second holder 800 may be electrically connected to the lens driving device 100 . For example, the second holder 800 may be electrically connected to the coil 120 of the lens driving device 100 and the second coil rings 170 and 170 - 1 .

For example, a driving signal may be provided to the coil 120 through the second holder 800 , and an induced voltage of the second coil rings 170 and 170 - 1 may be transmitted to the second holder 800 . For example, the induced voltage of the second coil ring 230 may be received by the controller 830 .

The connector 840 is electrically connected to the second holder 800 and may include a port for electrically connecting to an external device.

11 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 12 is a configuration diagram of the portable terminal 200A shown in FIG. 11 .

11 and 12, the portable terminal 200A (hereinafter referred to as "terminal") has a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, and an input/ It may include an output unit 750 , a memory unit 760 , an interface unit 770 , a control unit 780 , and a power supply unit 790 .

The body 850 shown in FIG. 11 is in the form of a bar, but is not limited thereto, and two or more sub-bodies are coupled to be relatively movable: a slide type, a folder type, and a swing type. , and may have various structures such as a swivel type.

The body 850 may include a case (casing, housing, cover, etc.) forming an exterior. For example, the body 850 may be divided into a front case 851 and a rear case 852 . Various electronic components of the terminal may be embedded in a space formed between the front case 851 and the rear case 852 .

The wireless communication unit 710 may include one or more modules that enable wireless communication between the terminal 200A and the wireless communication system or between the terminal 200A and the network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast reception module 711 , a mobile communication module 712 , a wireless Internet module 713 , a short-range communication module 714 , and a location information module 715 . have.

The A/V (Audio/Video) input unit 720 is for inputting an audio signal or a video signal, and may include a camera 721 , a microphone 722 , and the like.

The camera 721 may include the camera module 200 according to the embodiment shown in FIG. 10 .

The sensing unit 740 detects the current state of the terminal 200A, such as the opening/closing state of the terminal 200A, the position of the terminal 200A, the presence or absence of user contact, the orientation of the terminal 200A, acceleration/deceleration of the terminal 200A, etc. It is possible to generate a sensing signal for controlling the operation of the terminal 200A by sensing. For example, when the terminal 200A is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 790 is supplied with power, whether the interface unit 770 is coupled to an external device, and the like.

The input/output unit 750 is for generating input or output related to sight, hearing, or touch. The input/output unit 750 may generate input data for operation control of the terminal 200A, and may also display information processed by the terminal 200A.

The input/output unit 750 may include a keypad unit 730 , a display module 751 , a sound output module 752 , and a touch screen panel 753 . The keypad unit 730 may generate input data in response to a keypad input.

The display module 751 may include a plurality of pixels whose color changes according to an electrical signal.

The sound output module 752 outputs audio data received from the wireless communication unit 710 in a call signal reception, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or stored in the memory unit 760 . Audio data can be output.

The touch screen panel 753 may convert a change in capacitance generated due to a user's touch on a specific area of the touch screen into an electrical input signal.

The memory unit 760 may store a program for processing and control of the controller 780, and stores input/output data (eg, phone book, message, audio, still image, photo, video, etc.) can be temporarily stored. For example, the memory unit 760 may store an image captured by the camera 721 , for example, a photo or a moving picture.

The interface unit 770 serves as a passage for connecting to an external device connected to the terminal 200A. The interface unit 770 receives data from an external device, receives power and transmits it to each component inside the terminal 200A, or transmits data inside the terminal 200A to an external device.

The controller 780 may control the overall operation of the terminal 200A. For example, the controller 780 may perform related control and processing for voice call, data communication, video call, and the like. The controller 780 may include a multimedia module 781 for playing multimedia.

The power supply unit 790 may receive external power or internal power under the control of the control unit 780 to supply power required for operation of each component.

Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by a person skilled in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

Claims (20)

a cover member including an upper plate and a side plate including a first side plate, a second side plate, a third side plate positioned opposite to the first side plate, and a fourth side plate positioned opposite to the second side plate;
a bobbin disposed within the cover member;
a coil disposed on an outer surface of the bobbin;
a magnet including a first magnet disposed on the first side plate of the cover member and a second magnet disposed on the third side plate;
an upper elastic member coupled to an inner side of the upper plate and an upper portion of the bobbin; and
and a lower elastic member coupled to a lower portion of the side plate of the cover member and a lower portion of the bobbin,
The magnet is not disposed on the second and fourth side plates,
The upper elastic member includes a first outer frame coupled to the inner side of the upper plate, and the first outer frame includes a first portion disposed closer to the second side plate than the first side plate and the third side plate lens drive device. According to claim 1,
and the first outer frame includes a second portion disposed closer to the fourth side plate than to the first and third side plates. According to claim 1,
The cover member includes a first protrusion disposed on the inner surface of the second side plate and protruding from the outer surface of the second side plate to the inner surface,
The first portion of the first outer frame is positioned between a corner of the cover member in contact with the second side plate and the first protrusion. 3. The method of claim 2,
The cover member includes a second protrusion disposed on the inner surface of the fourth side plate and protruding from the outer surface of the fourth side plate toward the inner surface,
The second portion of the first outer frame is positioned between a corner of the cover member in contact with the fourth side plate and the second protrusion. According to claim 1,
The cover member includes a groove formed on the inner side of the cover member,
and the first portion of the first outer frame is disposed in the groove of the cover member. According to claim 1,
The lower elastic member includes a second outer frame coupled to the lower portion of the side plate of the cover member, and the second outer frame is located between adjacent two side plates among the first to fourth side plates. A lens driving device coupled to a corner portion of the cover member. 7. The method of claim 6,
The cover member includes a coupling protrusion formed in the corner portion of the cover member, and the second outer frame includes a through hole coupled to the coupling protrusion. According to claim 1,
The cover member includes a first groove formed in the first side plate and a second groove formed in the third side plate, the first magnet is disposed in the first groove, and the second magnet is the second A lens drive device disposed within the groove. 7. The method of claim 6,
and a base disposed under the cover member and comprising a side portion and a corner portion;
A lens driving device coupled to the corner portion of the base and the corner portion of the cover member. According to claim 1,
The upper elastic member,
a first inner frame coupled to an upper portion of the bobbin; and
and a first connection frame connecting the first outer frame and the first inner frame. 7. The method of claim 6,
The lower elastic member,
a second inner frame coupled to the lower portion of the bobbin; and
and a second connection frame connecting the second inner frame and the second outer frame. According to claim 1,
The coil is
a first coil unit disposed in a first area of an outer circumferential surface of the bobbin and facing the first magnet; and
and a second coil unit disposed in a second region of the outer circumferential surface of the bobbin and facing the second magnet. 13. The method of claim 12,
Each of the first coil unit and the second coil unit is wound in a clockwise or counterclockwise direction about an axis perpendicular to an optical axis. 13. The method of claim 12,
The coil includes a connecting line connecting the first coil unit and the second coil unit to each other. 13. The method of claim 12,
The lower elastic member includes a first lower spring and a second lower spring spaced apart from each other,
The first coil unit is connected to the first lower spring, and the second coil unit is connected to the second lower spring. 9. The method of claim 8,
The cover member may include at least one first through hole formed in the first side plate and connected to the first groove and a second through hole connected to the second groove formed in the third side plate. . 16. The method of claim 15,
a base disposed under the cover member;
Each of the first and second lower springs,
a second outer frame coupled to the lower portion of the side plate of the cover member;
a second inner frame coupled to the lower portion of the bobbin;
a second connection frame connecting the second inner frame and the second outer frame; and
and a connection terminal bent from the second outer frame and disposed on an outer surface of the base. 6. The method of claim 5,
The cover member includes a protrusion protruding from the lower surface of the upper plate,
The groove of the cover member is formed on a lower surface of the protrusion of the cover member. a cover member including an upper plate and a side plate including a first side plate, a second side plate, a third side plate positioned opposite to the first side plate, and a fourth side plate positioned opposite to the second side plate;
a bobbin disposed within the cover member;
a coil disposed on an outer surface of the bobbin;
a magnet including a first magnet disposed on the first side plate of the cover member and a second magnet disposed on the third side plate;
an upper elastic member coupled to an inner side of the upper plate and an upper portion of the bobbin; and
and a lower elastic member coupled to a lower portion of the side plate of the cover member and a lower portion of the bobbin,
The magnet is not disposed on the second and fourth side plates,
The cover member is disposed on the inner surface of the second side plate and includes a protrusion protruding from the outer surface of the second side plate toward the inner surface,
and the upper elastic member includes a portion coupled to a region of a lower surface of the upper plate positioned between a corner of the cover member in contact with the second side plate and the protrusion. cover member;
a bobbin disposed within the cover member;
a coil disposed on an outer surface of the bobbin;
a magnet disposed on the cover member;
an upper elastic member coupled to an inner side of the upper plate and an upper portion of the bobbin;
and a lower elastic member coupled to a lower portion of the cover member and a lower portion of the bobbin.

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