KR20230112589A - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

Embodiments include a cover member, a bobbin disposed within the cover member, a coil disposed on the bobbin, an upper elastic member including a first outer frame coupled to the cover member and a first inner frame coupled to the upper portion of the bobbin, a base disposed under the bobbin, including a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side, and a first magnet disposed on the first side of the base and a second magnet disposed on the third side of the base. A magnet including a magnet, the magnet not disposed on the second and fourth sides of the base, and the first outer frame disposed closer to the second side of the base than the first and third sides of the base.

Description

Lens driving device, and camera module and optical device including the same

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

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

BACKGROUND OF THE INVENTION Demand and production of electronic products such as smartphones and camera-equipped mobile phones are increasing. Cameras for mobile phones tend to be high-resolution and miniaturized, and accordingly, actuators are becoming miniaturized, large-diameter, and multi-functional. In order to implement a camera for a high-pixel mobile phone, additional functions such as performance improvement, auto focusing, shutter shake improvement, and zoom function of the mobile phone camera are required. Information related to the camera module may refer to Patent Publication No. 10-2015-0008662 (published on January 23, 2015) and US Patent Publication No. US 2011/0141564 (published on June 16, 2011).

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

A lens driving device according to an embodiment includes a cover member; a bobbin disposed within the cover member; a coil disposed on the bobbin; an upper elastic member including a first outer frame coupled to the cover member and a first inner frame coupled to an upper portion of the bobbin; a base disposed under the bobbin and including a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side; and

a magnet including a first magnet disposed on the first side of the base and a second magnet disposed on the third side of the base, wherein the magnet is not disposed on the second and fourth sides of the base, and the first outer frame includes a first portion disposed closer to the second side of the base than the first side and the third side of the base.

The first outer frame may include a second portion disposed closer to the fourth side of the base than the first and third side portions of the base.

The cover member includes first to fourth side plates corresponding to the first to fourth side portions of the base, the cover member is disposed on an inner surface of the second side plate and includes a first protrusion protruding from an outer surface of the second side plate toward the inner surface of the second side plate, and the first part of the first outer frame may be positioned between a corner of the cover member contacting the second side plate and the first protrusion.

The cover member may include first to fourth side plates corresponding to the first to fourth side parts of the base, the cover member may be disposed on an inner surface of the fourth side plate and may include a second protrusion protruding from an outer surface of the fourth side plate toward the inner surface of the fourth side plate, and the second part of the first outer frame may be positioned between a corner of the cover member contacting the fourth side plate and the second protrusion.

The cover member may include a groove in which the first portion of the first outer frame is disposed.

The lens driving device may include a lower elastic member including a second outer frame coupled to the cover member and a second inner frame coupled to the lower portion of the bobbin.

The cover member includes first to fourth side plates corresponding to the first to fourth side portions of the base, and the second outer frame is positioned between two adjacent side plates of 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 on 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 may include a first groove for accommodating the first magnet and a second groove for accommodating the second magnet. The corner portion of the base may be coupled to the corner portion of the cover member.

The coil may include a first coil unit facing the first magnet; and a second coil unit facing the second magnet. Each of the first coil unit and the second coil unit may have a ring shape wound clockwise or counterclockwise around an axis perpendicular to the optical axis. The coil may include a connection line connecting the first coil unit and the second coil unit.

A lower elastic member including a second outer frame coupled to the cover member and a second inner frame coupled to a lower portion of the bobbin, 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.

The lower elastic member may include a connection terminal bent from the second outer frame and disposed on an outer surface of the base. The connection terminal may be disposed closer to the fourth side of the base than to the first and third side portions of the base.

A lens driving device according to another embodiment includes a cover member; a bobbin disposed within the cover member; a coil disposed on the bobbin; a base disposed under the bobbin and including a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side; a magnet including a first magnet disposed on the first side of the base and a second magnet disposed on the third side of the base; and a lower elastic member including a second outer frame coupled with the cover member, a second inner frame coupled with a lower portion of the bobbin, and a connection terminal bent from the second outer frame and disposed on an outer surface of the base, wherein the magnet is not disposed on the second and fourth sides of the base, and the connection terminal is disposed closer to the fourth side of the base than the first and third sides of the base.

The coil may include a first coil ring, a second coil ring positioned opposite the first coil ring, and a connection line connecting the first coil ring and the second coil ring, and the lower elastic member may include a first lower spring coupled to the first coil ring and a second lower spring coupled to the second coil ring.

The connection terminal may include a first connection terminal bent from the second outer frame of the first lower spring and a first connection terminal bent from the second outer frame of the first lower spring, and each of the first and second coil rings may have a ring shape wound around an axis perpendicular to an optical axis.

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

1 shows 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 .
3A is a first perspective view of the bobbin shown in FIG. 1;
Figure 3b is a second perspective view of the bobbin shown in Figure 1;
Figure 3c shows a perspective view of the bobbin and coil.
4A is a first perspective view of the cover member shown in FIG. 1;
4B is a second perspective view of the cover member shown in FIG. 1;
4C is a third perspective view of a cover member to which a magnet is mounted.
FIG. 4D shows 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 illustrating coupling of a cover member, a bobbin, a magnet, an upper elastic member, and a lower elastic member.
6 shows a perspective view of a lower elastic member and a 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 .
FIG. 9 shows the lens driving device shown in FIG. 1 and a lens mounted thereon.
10 shows 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.
FIG. 12 shows a configuration diagram of the portable terminal shown in FIG. 11 .

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

Hereinafter, with reference to the accompanying drawings, a lens driving device according to an embodiment will be described as follows. For convenience of description, the lens driving device according to the embodiment is described using a Cartesian coordinate system (x, y, z), but it may be described using another coordinate system, and the embodiment is not limited thereto. In each figure, the x-axis and the y-axis mean directions perpendicular to the z-axis, which is the optical axis direction, and the z-axis direction, which is the optical axis direction or a direction parallel to the optical axis OA, is referred to as a 'first direction'. The x-axis 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 on an image sensor surface. Such an auto focusing device may be configured in various ways. A lens driving device according to an embodiment may perform an auto focusing operation by moving an optical module composed of at least one lens in a first direction.

FIG. 1 shows a perspective view of a lens driving device 100 according to an embodiment, and FIG. 2 shows 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 includes a cover member 300, a bobbin 110, a coil 120, a magnet 130, an upper elastic member 150, a lower elastic member 160, and a base 210.

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

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. Shows.

Referring to FIGS. 1, 2, and 3A to 3C , the bobbin 110 is disposed within the cover member 300 and moves in a first direction by electromagnetic interaction between the coil 120 and the magnet 130.

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) in which at least one lens is installed, 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 lens barrel. The shape of the opening of the bobbin 110 may match the shape of the lens or lens barrel to be mounted. For example, the shape of the opening of the bobbin 110 may be circular, elliptical, or polygonal, but is not limited thereto.

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

In addition, the bobbin 110 may include at least one second coupling part 117a or 117b located on the lower or lower surface and to which the second inner frames 161a or 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 portion 153 of the upper elastic member 150 may be provided on the upper surface of the bobbin 110, and a lower escape groove 112b corresponding to or aligned with the second frame connection portion 163 of the lower elastic member 160 may be provided on the lower surface of the bobbin 110.

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 connectors 153 and 163 and the bobbin 110 can be eliminated, and thereby the first and second frame connectors 153 and 163 can be more easily elastically deformed.

The bobbin 110 may include a stopper 111a protruding upward from the top surface and a stopper 111b protruding downward from the bottom surface.

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

Each of the second side parts 110b - 2 may be positioned between two adjacent first side parts. The length of each of the first side parts 110b-1 in the horizontal direction may be longer than the length of each of the second side parts in the horizontal direction, but is not limited thereto, and the lengths of both may be equal to 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, at least one protrusion 113 may be provided on at least one of the first side parts 110b-1 of the bobbin 110, but is not limited thereto, and in another embodiment, the first side part or the second side part. It may be provided on at least one of them. For example, at least one protrusion 113 may be provided on each of the two first side parts 110b-1 of the bobbin 110 facing each other.

In addition, a groove 45a for disposing a part of the first coil ring 120a may be provided on one first side of the bobbin 110 on which the protrusion 113 is provided, and a groove 45a for disposing a part of the second coil ring 120b may be provided on the other first side of the bobbin 110 on which the protrusion 113 is provided.

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

In the embodiment of FIG. 3A , protrusions are provided on the bobbin 110 for mounting the coil 120, but the present invention is not limited thereto, and grooves may be provided in other embodiments. In another embodiment, the bobbin 110 may not have grooves or protrusions for mounting the coil 120, and the coil 120 may be directly wound on or fixed to the outer surface 110b of the bobbin 110 without grooves or protrusions.

The bobbin 110 may be provided at an upper portion and may include a protruding support portion 115 provided with an opening 101. The protruding support portion 115 may protrude in an inner direction with respect to the inner surface 110b or from the outer surface 110b to the inner surface 110a. The protruding support 115 may support one end of the lens and prevent the lens from escaping out of 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 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, Pulse Width Modulation (PWM)) 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, the intensity and/or direction of the electromagnetic force may be controlled by controlling the intensity and/or polarity of the driving signal. The movement of the bobbin 110 in the first direction can be controlled by the controlled electromagnetic force, and as a result, an auto focusing function for a lens mounted in the lens driving device can be performed.

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

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

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

An area of the outer surface of the bobbin 110 where the first coiling 120a is positioned may be opposite to an area of the outer surface of the bobbin 110 where the second coiling 120b is positioned.

The connection line may be positioned on an outer surface of the bobbin 110 to connect the first coil ring 120a and the second coil ring 120b to each other.

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

Each of the first coil ring 120a and the second coil ring 120b may be inserted into 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. Also, 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 first and second coil rings that are electrically separated, and each of the separated first and second coil rings may be electrically connected to the first and second springs of the lower elastic member, and a driving signal may be provided through the first and second springs.

Next, the cover member 300 will be described. The cover member 300 may also 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, FIG. 4C is a third perspective view of the cover member 300 to which the magnet 130 is mounted, and FIG. 4D shows an enlarged view of a corner portion 40b of the cover member 300 shown in FIG. 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 accommodating space together with the base 210, and may accommodate a bobbin 110, a coil 120, a magnet 130, an upper elastic member 150, and a lower elastic member 160 in the accommodating space.

The cover member 300 includes an upper plate 3 and a side plate 4 positioned under the upper plate 3, and may have a box shape with a lower portion open. For example, the side plate 4 may include side plates 20a to 20d and corner portions 40a to 40d.

The top plate 3 of the cover member 300 may have a polygonal shape, for example, a quadrangular or octagonal shape, a circular shape, an elliptical 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 .

In addition, 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 part 5a may protrude based on the lower surface of the lower end of the outer part 5a, but is not limited thereto.

The outer portion 5a and the inner portion 5b may be injection-molded products of the same material and may be integrally formed.

The lower end of the side plate 4 of the cover member 300 may contact 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.

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

The protrusions 6a and 6b are provided on the bottom or bottom of at least one of the side plates 20a to 20d of the cover member 300, and the grooves 18a and 18b are provided on the bottom or bottom of at least one of the side plates 20a to 20d of the cover member 300.

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 may be disposed on the outer portion 5a of the two side plates 20b and 20d facing each other.

Also, for example, the grooves 18a and 18b may be provided on the two side plates 20a to 20d facing each other of the cover member 300, and may be disposed on the inner side 5b of the two side plates 20b and 20d facing each other.

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 located on one side and the other side of the protrusion 6a or 6b, but are 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 .

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

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 may have a first opening on a first side facing the coil 120 to increase electromagnetic force due to interaction with the coil 120.

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

Since the thickness of the side plates 20a and 20c of the cover member 300 having the mounting grooves 25a and 25b is thin, the durability of the side plates 20a and 20c may be reduced. 130b) can play a role of reinforcing to stably support.

As shown in FIG. 4C , a portion of the magnet 130 mounted in the mounting grooves 25a and 25b may protrude out of the mounting grooves 25a and 25b.

For example, lower ends of the magnets 130 mounted in the mounting grooves 25a and 25b may protrude out of openings provided at lower portions of the mounting grooves 25a and 25b.

For example, the lower ends of the magnets 130 mounted in the mounting grooves 25a and 25b may be located below the second outer frames 162a1, 162a2, 162b1 and 162b2 of the lower elastic member 160 mounted on the cover member 300.

At this time, a portion of the magnet 130 protruding out of the mounting grooves 25a and 25b may be inserted or inserted into the seating portion 86 of the base 210 . For example, the lower end or lower surface of the seating portion 86 may have a step with 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 may be greater than the thickness of the inner portion 5b of each of the side plates 20a to 20d.

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

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

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

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

The lower surface of the upper plate 3 of the cover member 300 adjacent to the corner parts 40a to 40d may be provided with a protruding part 10a protruding from the upper surface of the upper plate 3 toward the lower surface, and the third coupling part 7a may be formed on the lower surface of the protruding part 10a, for example, the protruding part 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 the 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 the portion 701 of the first connection frame 153 to move easily and smoothly in an upward or downward direction. The first escape groove 7b may have an opening that opens to an inner surface of the protrusion 10a so that a portion 701 of the first connection frame 153 can be seated therein.

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 part of the cover member 300 may be provided on the lower surface of the upper plate 3 adjacent to each corner portion 40a to 40d or on the lower surface of the upper plate 3 adjacent to each side plate 20a to 20d.

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

An upper portion of the protrusion 9a may come into contact with the lower surface 3a of the upper plate 3 . For example, an upper portion of the protruding portion 9a may come into contact with a lower surface of the protruding portion 10a.

The third coupling part 7a may be located between the corner parts 40a to 40d and the protrusion part 9a adjacent thereto.

For example, the protruding portion 9a may be provided on inner surfaces 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 mounting or fixing of the outer frame 151 of the upper elastic member 150 to the third coupling portion 7a, and the outer frame 151 may be easily separated from the third coupling portion 7a.

At least one fourth coupling portion 145a or 145b to which the lower elastic member 160 is coupled may be provided at the lower or lower end of the side plate 4 of the cover member 300 .

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

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

For example, at least one fourth coupling portion 145a or 145b may be provided on the bottom, bottom, or lower surface of each corner portion 40a to 40d of the cover member 300, and the fourth coupling portion 145a or 145b may be located on the inner portion 5b of the corner portions 40a to 40d, but is not limited thereto. In another embodiment, the fourth coupling parts 145a and 145b may be located on 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 is inserted, fastened, or coupled may be provided at the 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 at or below each of the corner portions 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 are 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 by an adhesive member, and the cover member 300 may be coupled to the base 210.

At least one through hole 30a or 30b may be provided in the side portions 20a or 20c where the magnet 130 is disposed. For example, two through holes 30a and 30b may be provided on the two side parts 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 input ports for inserting an adhesive member for fixing the magnet 130 to the mounting grooves 25a and 25b.

Next, the magnet 130 will be described.

At 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 be aligned with the first and second coil rings 120a and 120b.

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 only elastically deformed by the weight of the AF movable part. As a result, the AF movable part is placed.

For example, the initial position of the bobbin 110 is when gravity acts in the direction from the bobbin 110 to the base 210 or, conversely, when gravity acts in the direction from the base 210 to the bobbin 110. It may be a position where the AF movable part is placed. The AF movable unit may include a bobbin 110 and components mounted on the bobbin 110, for example, a 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 in a direction from the magnet 130 to the bobbin 110. It may be disposed on the cover member 300.

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

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 or bipolar magnets disposed so that the S pole faces the coil 120 and the N pole on the outside. However, the embodiment is not limited to this, and it is also possible to configure the opposite. In addition, according to the arrangement of the coil 120, the positions of the S pole and the N pole of the magnet 130 may be set so that electromagnetic force can be generated by interaction.

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 direction of the optical axis. In this case, the first magnets 130a and 130b may be implemented with ferrite, alnico, or rare earth magnets.

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 barrier rib may be positioned between the first magnet part and the second magnet part.

The non-magnetic barrier rib is a portion that is substantially non-magnetic and may include a section having little polarity, and may be filled with air or made of a non-magnetic material.

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

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

5A shows a perspective view of the cover member 300 to which the magnet 130 and the upper elastic member 150 are mounted, and FIG. 5B shows a perspective view showing the coupling of the cover member 300, the bobbin 110, the magnet 130, the upper elastic member 150, and the lower elastic member, and FIG. 6 shows 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 part (upper surface or upper end) of the bobbin 110 and the lower part (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 portion (or lower surface, or lower portion) of the bobbin 110 and the lower portion (or lower surface, or lower portion) of the corner portions 40a to 20d of the cover member 300 .

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

The upper elastic member 150 may include 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 connecting portion 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 adhesive members. For example, a through hole 152a for coupling with the third coupling portion 7 of the cover member 300 may be provided in the first outer frame 152 . The through hole 152 may be patterned in various shapes (eg, an X shape) in order to increase a contact area with an adhesive member and improve bonding force.

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

For example, the lower elastic member 160 may include a first spring 160a and a second spring 160b spaced 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 a second inner frame 161a and 161b coupled to the lower portion of the bobbin 110, at least one second outer frame 162a1, 162a2, 162b1 and 162b2 coupled to the lower surface 3a of the upper plate 3 of the cover member 300, and a second inner frame At least one second frame connecting portion 163a1, 163a2, 163b1, and 163b2 connecting the frames 161a and 161b and the at least one second outer frame 162a1, 162a2, 162b1 and 162b2 may be included.

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

The second inner frames 161a and 161b correspond to the magnets 130a and 130b, and may include a frame section having a straight outer surface and a curved inner surface, and the through holes 61a and 61b and the first and second bonding parts 91 and 92 may be disposed in the 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 an adhesive member permeates may be provided in at least one of the through holes 61a and 61b.

A first bonding part 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 be coupled to the first bonding part 91 through the solder 36a.

A second bonding part 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 be coupled to the second bonding part 92 through the solder 36b. Each of the first bonding portion 91 and the second bonding portion 92 may be formed on the outer surfaces of the second inner frames 161a and 161b, and protrude from the inner surfaces of the second inner frames 161 and 161b toward the outer surfaces.

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

For example, the first spring 160a may include one second inner frame 161a, two second outer frames 162a1 and 162a2, and two second frame connectors 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 connectors 163b1 and 163b2.

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 parts 163a1, 163a2, 163b1, and 163b2 than the through hole 62b, and the diameter of the through hole 62a may be greater than that of the through hole 62b. Since the diameter of the fourth coupling portion 145a is larger than that of the fourth coupling portion 145b, and the diameter of the through hole 62a is larger than the diameter of the through hole 62b, the embodiment can more stably support the bobbin 110 connected to the second frame connection portions 163a1, 163a2, 163b1, and 163b2.

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

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

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 bent or curved bent portions 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 to the second outer frames 162a1 , 162a2 , 162b1 , and 162b2 by the bent portion 71 .

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

The first spring 160a is connected to an outer surface of one of the second outer frames 162a1 and 162a2 and is bent in a direction from the second outer frame 163a2 toward the base 210. It may further include a first connection terminal 73a extending.

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

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

For example, inner surfaces of each of the first and second connection terminals 73a and 73b disposed in the recesses 81a and 81b may come into contact with one surface (eg, a bottom surface) of the recesses 81a and 81b.

Also, for example, the outer surfaces of each of the first and second connection terminals 73a and 73b disposed in the recesses 81a and 81b may be exposed from the first outer surface of the base 210, and the lower ends of each of the first and second 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 outer surfaces of the first and second connection terminals 73a and 73b disposed in the depressions 81a and 81b may not protrude outside the depressions 81a and 81b.

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

Regarding the above-described first and second connection terminals 73a and 73b, the term "connection terminal" may be used as a term for a pad part, a bonding part, a solder part, or an 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 integrally formed with the second outer frame 162b2 of the second spring 160b, but is not limited thereto.

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

A driving signal for driving the coil 120, eg, a driving current, 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 leaf springs, but are not limited thereto, and may be implemented as coil springs, suspension wires, and the like.

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

In order to prevent an oscillation phenomenon when the bobbin 110 moves, a damper may be 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.

Alternatively, a damper (not shown) may also be disposed between the second frame connecting portion 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 may be applied to a coupling portion between the bobbin 110 and the cover member 300 and the upper elastic member 150, or a coupling portion between the bobbin 110 and the cover member 300 and the lower elastic member 160. For example, the damper may be silicone in gel form.

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

The base 210 may include a lower plate and a side plate disposed on the lower plate, and may have a box shape with an open top.

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

The side plate of the base 210 may include side parts S1 to S4 and corner parts P1 to P4. Each of the corner portions P1 to P4 of the base 210 may be located 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 may correspond to the corner parts 40a to 40d of the cover member 300.

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 in an optical axis direction or an upper direction from the upper surface of the base 210, and the base 210 may include four protrusions 11a corresponding to the corner portions P1 to P4.

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

For example, the guide member 216 may have a polygonal column 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 top or top of the guide member 216 may be located higher than the top or top of the side parts 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 durability of the base 210, and secure a stable coupling between the grooves 51a to 51d of the cover member 300 and the guide member 216 of the base 210.

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

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

A groove 89 corresponding to the fourth coupling part 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 part 145b, improve the coupling force between the cover member 300 and the base 210, and stably fix the second outer frames 162a1, 162a2, 162b1, and 162b2 of the lower elastic member 160 to the cover member 300 and the base 210.

At least one of the side parts S1 to S4 of the base 210 may be provided with a groove 82 coupled to the protruding parts 6a and 6b of the cover member 300 . The groove part 82 may contact outer surfaces of the side parts S1 to S4 of the base 210 and may include an opening that is open to the outer surfaces.

In addition, protrusions 84 corresponding to the inner portion 5b of the cover member 300 may be provided on the side portions S2 and S4 of the base 210 provided with the groove portion 82 . For example, the protruding portion 84 may be disposed to contact the groove portion 82 .

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

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

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 the 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 part 702 of the second connection frame 163 .

Due to the protrusion 11a formed on the base 210, when the second connection frame 163 of the lower elastic member 160 moves in a direction parallel to the optical axis, the second connection frame 163 is the base 210. Spatial interference with the protrusion 11a may occur, and thereby the movement of the bobbin 110 may be restricted.

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

In addition, as shown in FIG. 4B, a second escape groove 60 corresponding to a portion 702 of the second connection frame 163 may be provided on the lower or lower surface of the corner portions 40b to 40d of the cover member 300.

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

For example, the second escape groove 60 of the cover member 300 may have an opening on the side facing the part 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, it is possible to secure a sufficient space to avoid spatial interference with the cover member 300 and the base 210. Due to this, it is possible to avoid spatial restrictions on the movement of the bobbin 110 for AF driving.

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

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

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

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

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 large-sized lens.

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 number of parts can be reduced by removing the housing and supporting the magnet 130 and the upper and lower elastic members by the cover member 300.

Since the material of the cover member is an injection-molded product, it is possible to easily form mounting grooves 25a and 25b into which the magnet 130 can be mounted, the third coupling portion 7 in the form of a groove coupled to the upper elastic member 150, and the fourth coupling portion 145a and 145b in the form of a protrusion coupled to the lower elastic member 16.

In addition, since the two ring-shaped driving coils 120a and 120b are mounted on the bobbin 110, compared to a lens driving device having a coil disposed to surround the outer circumferential surface of the bobbin 110, the embodiment can secure a stronger electromagnetic force while lowering power consumption.

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 can suppress spatial interference between the lower elastic member 160 and the cover member 300 and between the lower elastic member 300 and the base 210, and can prevent movement restrictions of the bobbin 110 for AF driving.

Meanwhile, the lens driving device 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 device 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 acuity of the eye, Recording and reproducing the image by a lens, or optical measurement, Propagation or transmission of the image. For example, an optical device according to an embodiment may include a smart phone and a portable terminal equipped with a camera.

10 shows an exploded perspective view of a camera module 200 according to an embodiment.

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

A 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 have a protrusion 500 on which the filter 610 is seated.

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 matter from entering the lens driving device 100 in addition to the above-described adhesive function.

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 from light passing through the lens barrel 400 from being incident to 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 parallel to the x-y plane.

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

The second holder 800 may be disposed below the first holder 600 , and the image sensor 810 may be mounted on the second holder 600 . The image sensor 810 is a part where light passing through the filter 610 is incident and an image including the light is formed.

The second holder 800 may be equipped with 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.

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 from each other so as to face each other in the first direction.

The motion sensor 820 is 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 caused by 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 controller 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 the 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 to be electrically connected 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, a portable terminal (200A, hereinafter referred to as “terminal”) may include a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, an input/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 may have various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more sub-bodies are coupled to be relatively movable.

The body 850 may include a case (casing, housing, cover, etc.) constituting an external appearance. 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 the space formed between the front case 851 and the rear case 852 .

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

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

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 open/closed state of the terminal 200A, the location of the terminal 200A, presence or absence of user contact, orientation of the terminal 200A, and acceleration/deceleration of the terminal 200A. For example, when the terminal 200A is in the form of a slide phone, whether the slide phone is opened or closed may be sensed. In addition, it is responsible for sensing functions related to whether or not the power supply unit 790 supplies power and whether or not the interface unit 770 is connected to an external device.

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 controlling the operation 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 by keypad input.

The display module 751 may include a plurality of pixels whose colors change according to electrical signals.

The audio output module 752 may output 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 may output audio data stored in the memory unit 760.

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

The memory unit 760 may store programs for processing and control of the control unit 780, and may temporarily store input/output data (e.g., phone book, messages, audio, still images, photos, videos, etc.). For example, the memory unit 760 may store an image captured by the camera 721, for example, a photo or video.

The interface unit 770 serves as a passage through which an external device connected to the terminal 200A is connected. The interface unit 770 receives data from an external device or 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 overall operations of the terminal 200A. For example, the controller 780 may perform related control and processing for voice calls, data communications, video calls, 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 necessary for the operation of each component.

Features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified with respect to other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to these combinations and variations should be construed as being included in the scope of the present invention.

Claims (20)

cover member;
a bobbin disposed within the cover member;
a coil disposed on the bobbin;
an upper elastic member including a first outer frame coupled to the cover member and a first inner frame coupled to an upper portion of the bobbin;
a base disposed under the bobbin and including a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side; and
A magnet including a first magnet disposed on the first side of the base and a second magnet disposed on the third side of the base,
The magnet is not disposed on the second and fourth sides of the base,
The first outer frame includes a first portion disposed closer to the second side of the base than the first side and the third side of the base. According to claim 1,
The first outer frame includes a second portion disposed closer to the fourth side of the base than to the first and third side portions of the base. According to claim 1,
The cover member includes first to fourth side plates corresponding to the first to fourth side parts of the base,
The cover member includes a first protrusion disposed on an inner surface of the second side plate and protruding from an outer surface of the second side plate toward the inner surface of the second side plate,
The first portion of the first outer frame is positioned between a corner of the cover member contacting the second side plate and the first protrusion. According to claim 2,
The cover member includes first to fourth side plates corresponding to the first to fourth side parts of the base,
The cover member includes a second protrusion disposed on an inner surface of the fourth side plate and protruding from an outer surface of the fourth side plate toward the inner surface of the fourth side plate,
The second portion of the first outer frame is positioned between a corner of the cover member contacting the fourth side plate and the second protrusion. According to claim 1,
The cover member includes a groove in which the first portion of the first outer frame is disposed. According to claim 1,
A lens driving device comprising a lower elastic member including a second outer frame coupled to the cover member and a second inner frame coupled to the lower portion of the bobbin. According to claim 6,
The cover member includes first to fourth side plates corresponding to the first to fourth side parts of the base,
The second outer frame is coupled to a corner portion of the cover member positioned between two adjacent side plates among the first to fourth side plates. According to claim 7,
The cover member includes a coupling protrusion formed on 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 for accommodating the first magnet and a second groove for accommodating the second magnet. According to claim 1,
A corner portion of the base is engaged with a corner portion of the cover member. According to claim 1,
The coil is
a first coil unit facing the first magnet; and
A lens driving device comprising a second coil unit facing the second magnet. According to claim 11.
Each of the first coil unit and the second coil unit has a ring shape wound clockwise or counterclockwise about an axis perpendicular to an optical axis. According to claim 11,
The coil includes a connection line connecting the first coil unit and the second coil unit. According to claim 11,
And a lower elastic member including a second outer frame coupled to the cover member and a second inner frame coupled to the lower portion of the bobbin,
The lower elastic member includes a first lower spring and a second lower spring spaced apart from each other,
The lens driving device of claim 1 , wherein the first coil unit is connected to the first lower spring, and the second coil unit is connected to the second lower spring. According to claim 6,
The lower elastic member includes a connection terminal bent from the second outer frame and disposed on an outer surface of the base. According to claim 15,
The connecting terminal is disposed closer to the fourth side of the base than to the first and third sides of the base. cover member;
a bobbin disposed within the cover member;
a coil disposed on the bobbin;
a base disposed under the bobbin and including a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side;
a magnet including a first magnet disposed on the first side of the base and a second magnet disposed on the third side of the base; and
A second outer frame coupled to the cover member, a second inner frame coupled to the lower portion of the bobbin, and a lower elastic member including a connection terminal bent from the second outer frame and disposed on an outer surface of the base,
The magnet is not disposed on the second and fourth sides of the base,
The connecting terminal is disposed closer to the fourth side of the base than to the first and third sides of the base. According to claim 17,
The coil includes a first coil ring, a second coil ring positioned opposite the first coil ring, and a connection line connecting the first coil ring and the second coil ring,
The lower elastic member includes a first lower spring coupled to the first coil ring and a second lower spring coupled to the second coil ring. According to claim 18,
The connection terminal includes a first connection terminal bent from the second outer frame of the first lower spring and a first connection terminal bent from the second outer frame of the first lower spring,
Each of the first and second coil rings has a ring shape wound around an axis perpendicular to the optical axis. 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 top plate and an upper portion of the bobbin;
A lens driving device including a lower elastic member coupled to a lower portion of the cover member and a lower portion of the bobbin.

Images