KR20230006418A - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

An embodiment of the present invention relates to a lens driving device which comprises: a base including a first column portion, a second column portion, a third column portion, and a fourth column portion; a bobbin disposed in the first to fourth column portions; a magnet including a first magnet interposed between the first column portion and the second column portion and a second magnet interposed between the third column portion and the fourth column portion; a coil disposed on the bobbin; and a lower elastic member joined to a lower part of the bobbin and the base, wherein the lower elastic member includes a first portion joined to the first area of the base interposed between the first column portion and the fourth column portion, and the first portion of the lower elastic member does not overlap with the magnet in a direction parallel to an optical axis. Accordingly, the structure can be simplified and costs can be saved.

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).

The embodiment provides a lens driving device capable of simplifying the structure and reducing cost, a camera module including the same, and an optical device.

A lens driving device according to an embodiment includes a base including a first pillar part, a second pillar part, a third pillar part, and a fourth pillar part; bobbins disposed inside the first to fourth pillar parts; a magnet including a first magnet disposed between the first pillar part and the second pillar part and a second magnet disposed between the third pillar part and the fourth pillar part; a coil disposed on the bobbin; and a lower elastic member coupled to the lower part of the bobbin and the base, wherein the lower elastic member is coupled to a first region of the base positioned between the first pillar part and the fourth pillar part. and, the first portion of the lower elastic member does not overlap the magnet in a direction parallel to the optical axis.

The lower elastic member includes a second portion coupled to a second region of the base positioned between the second and third pillar portions, and the second portion of the lower elastic member is parallel to the optical axis. It may not overlap with the magnet in one direction.

The lower elastic member may not be coupled to an area of the base positioned between the first pillar part and the second pillar part and between the third pillar part and the fourth pillar part.

The magnet may not be disposed between the first pillar part and the third pillar part and between the second pillar part and the fourth pillar part.

The base may include a body disposed under the first to fourth pillar parts; and a first protrusion positioned between the first pillar part and the fourth pillar part and protruding from the body, wherein the first part of the lower elastic member may be engaged with the first protrusion part.

The base may include a second protrusion protruding from the first protrusion, and the first part of the lower elastic member may be engaged with the second protrusion.

The lower elastic member includes a first lower spring and a second lower spring spaced apart from each other, and each of the first and second lower springs is coupled to an inner frame coupled to a lower portion of the bobbin, the first area of the base, and It may include a coupled outer frame, and a connection portion connecting the inner frame and the outer frame.

The lens driving device may include an upper elastic member coupled to an upper part of the bobbin and the first to fourth pillar parts.

The coil may be electrically connected to the first and second lower springs. One end of the coil may be coupled to the inner frame of the first lower spring, and the other end of the coil may be coupled to the inner frame of the second lower spring.

The base includes a body disposed under the first to fourth pillar parts, and each of the first lower spring and the second lower spring is connected to the outer frame and is located below the first region of the base. A contact terminal extending to an outer surface of the body may be included.

The bobbin may move in an optical axis direction by an interaction between the coil and the magnet, and the coil may have a ring shape surrounding an outer circumferential surface of the bobbin.

The lower elastic member may be positioned between the first magnet and the second magnet and spaced apart from the magnet.

One end of the first magnet is coupled to the first pillar part, the other end of the first magnet is coupled to the second pillar part, and one end of the second magnet is coupled to the third pillar part and the second magnet The other end of may be coupled to the fourth pillar portion.

The base may include a body disposed under the first to fourth pillar parts; a first protrusion protruding from the body and located between the first pillar part and the fourth pillar part; and a second protrusion positioned between the second pillar portion and the third pillar portion and protruding from the body, wherein the first portion of the lower elastic member is coupled to the first protrusion portion, and the lower elastic member is coupled to the first protrusion portion. The second portion may be coupled to the second protrusion.

The base includes a second protrusion, and the second protrusion is disposed on the first protrusion and is disposed on the second protrusion and a 2-1 protrusion coupled to the first portion of the lower elastic member and is disposed on the lower elastic member. A 2-2 projection coupled to the second portion of the member may be included.

The base may include a body disposed under the first to fourth pillar parts; a first step portion having a step difference from an outer surface of the body and positioned between the first pillar portion and the second pillar portion; a second stepped portion having a step difference from outer surfaces of each of the first and second pillar portions; a third step portion having a step difference from an outer surface of the body and positioned between the third pillar portion and the fourth pillar portion; and a fourth stepped portion having a step difference from outer surfaces of each of the third pillar portion and the fourth pillar portion, wherein the first magnet is disposed on the first stepped portion and the second stepped portion, and wherein the second A magnet may be disposed on the third stepped portion and the fourth stepped portion.

A lens driving device according to another embodiment includes a base including a first pillar part, a second pillar part, a third pillar part, and a fourth pillar part; bobbins disposed inside the first to fourth pillar parts; a coil disposed on the bobbin; A first magnet disposed in the first region of the base between the first pillar part and the second pillar part and a second magnet disposed in the second region of the base between the third pillar part and the fourth pillar part. A magnet including a magnet; and a lower elastic member coupled to the lower portion of the bobbin and the base, wherein the lower elastic member includes an inner frame coupled to the lower portion of the bobbin, an outer frame coupled to the base, and the inner frame and the outer frame. and a connecting portion for connecting, wherein the outer frame includes a first portion coupled to the first region of the base and a second portion coupled to the second region of the base, and the first portion of the outer frame and the second part is spaced apart from the magnet and does not overlap the magnet in a direction parallel to the optical axis.

The base includes a second protrusion, and the second protrusion is disposed on the first area of the base and is coupled to the 2-1 protrusion coupled to the first portion of the outer frame and to the second area of the base. It may include a 2-2 protrusion disposed and coupled to the second portion of the outer frame.

The embodiment can simplify the structure and reduce the cost.

1 shows a perspective view of a lens driving device according to an embodiment.
FIG. 2 shows an exploded view of the lens driving device of FIG. 1 .
FIG. 3 shows the lens driving device excluding the cover member of FIG. 1 .
Figure 4a is a perspective view of the bobbin shown in Figure 2;
Figure 4b is a perspective view of the bobbin and coil shown in Figure 4a.
5A is a first perspective view of the base shown in FIG. 2;
Figure 5b is a second perspective view of the base shown in Figure 2;
5C is a third perspective view of the base shown in FIG. 2;
Figure 6 is a perspective view of the lower elastic member shown in Figure 2;
7 shows a magnet coupled to a base and a lower elastic member.
8 shows an upper elastic member coupled to the base.
9 is an exploded perspective view of a base and a magnet.
10 is a perspective view of the base and the magnet of FIG. 9 coupled.
11 is a partially enlarged view of a base to which a lower elastic member is coupled.
FIG. 12 is a cross-sectional view of the lens driving device shown in FIG. 3 in an AB direction.
13 is an exploded perspective view of a base and first and second magnets according to another embodiment.
FIG. 14 is a perspective view of the combination of the base and first and second magnets of FIG. 13 .
15 is a partially enlarged view of the base of FIG. 13;
Fig. 16 is a cross-sectional view of the lens driving device to which the base of Fig. 13 is attached, in the AB direction of Fig. 3;
17A is a perspective view of a base according to another embodiment.
FIG. 17B is a plan view of the base shown in FIG. 17A.
Fig. 18 is a plan view of the base and bobbin of Fig. 17a;
19 is an enlarged view of the dotted line portion of FIG. 18;
20 shows a perspective view of a base according to another embodiment.
21 is a perspective view of a base according to another embodiment.
22 is a plan view of the base shown in FIG. 21;
23 is a perspective view of a base according to another embodiment.
24 shows an exploded perspective view of a camera module according to an embodiment.
25 is a perspective view of a portable terminal according to an embodiment.
FIG. 26 shows a configuration diagram of the portable terminal shown in FIG. 25 .

Hereinafter, embodiments of the present invention that can specifically realize the above object will be described with reference to the accompanying drawings.

In the description of the embodiment, in the case where it is described as being formed on "on or under" of each element, the upper (upper) or lower (on or under) Both elements formed by directly contacting each other or by indirectly placing one or more other elements between the two elements are included. In addition, when expressed as "on or under", it may include the meaning of not only the upward direction but also the downward direction based on one element.

In addition, relational terms such as “first” and “second”, “upper/upper/upper” and “lower/lower/lower” used below refer to any physical or logical relationship or sequence between such entities or elements. may be used only to distinguish one entity or element from another entity or element, without necessarily requiring or implying that Also, like reference numbers indicate like elements throughout the description of the drawings.

In addition, terms such as "comprise", "comprise", or "have" described above mean that the corresponding component may be inherent unless otherwise stated, excluding other components. It should be construed as being able to further include other components.

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 drawing, 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 (OA) direction or a 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 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.

1 is a perspective view of a lens driving device 100 according to an embodiment, FIG. 2 is an exploded view of the lens driving device 100 of FIG. 1 , and FIG. 3 is a lens driving excluding the cover member 300 of FIG. 1 . Device 100 is shown.

1 to 3, the lens driving device 100 includes a cover member 300, a bobbin 110, a coil 120, a magnet 130, and an upper elastic member. , 150), a lower elastic member (160), and a base (210).

First, the cover member 300 will be described.

The cover member 300 accommodates the other components 110 , 120 , 130 , 140 , 150 , 160 , and 400 in an accommodation space formed together with the base 210 .

The cover member 300 may have a box shape with an open bottom and include a top plate and side plates, and lower ends of the side plates of the cover member 300 may be coupled to an upper portion of the base 210 . The top plate of the cover member 300 may have a polygonal shape, for example, a quadrangle or an octagon.

The cover member 300 may have an opening on the upper plate through which the lens unit 400 coupled to the bobbin 110 is exposed to external light.

For example, the cover member 300 may be made of a non-magnetic material such as SUS aluminum (Al), copper (Cu), tin (Sn), or platinum. By using the cover member 300 made of a non-magnetic material, the embodiment can prevent the cover member 330 from sticking to the magnet 130. In another embodiment, the cover member 300 may be a magnetic material or a plastic material.

An adhesive member injection groove 305 for injecting an adhesive member for bonding with the base 210 may be provided at a lower end of at least one of the side plates of the cover member 300 .

Further, a groove 306 exposing the first and second connection terminals 164a and 164b of the lower springs 160a and 160b may be provided at a lower end of the side plate of the cover member 300 .

Next, the bobbin 110 will be described.

Figure 4a is a perspective view of the bobbin 110 shown in Figure 2, Figure 4b is a perspective view of the bobbin 110 and coil shown in Figure 4a.

4A and 4B, the bobbin 110 is located inside the pillar parts 216a to 216d of the base 210, and the electromagnetic interaction between the coil 120 and the magnet 130 causes the first direction ( For example, in the Z-axis direction).

For example, the bobbin 110 may move in both directions, for example, in an upward direction (+Z-axis direction) or a lower direction (−Z-axis direction) from the initial position of the bobbin 110 . Alternatively, in another embodiment, the bobbin 110 may be moved in a unidirectional direction, for example, in an upward direction from the initial position.

The bobbin 110 may have an opening 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, and may be, for example, circular, elliptical, or polygonal, but is not limited thereto.

The bobbin 110 is disposed on the upper surface and has at least one first coupling part 113 coupled and fixed to the inner frame 151 of the upper elastic member 150 and disposed on the lower surface and the inner frame of the lower elastic member 160. At least one second coupling part 117 coupled to and fixed to (161) may be provided.

For example, the first coupling part 113 of the bobbin 110 may have a flat shape, but is not limited thereto, and may have a protrusion or groove shape in another embodiment. For example, the second coupling part 117 of the bobbin 110 may have a protruding shape, but is not limited thereto, and may have a groove or a flat shape in another embodiment.

The bobbin 110 may have an upper escape groove 112a provided in a region of an upper surface corresponding to or aligned with the first frame connecting portion 153 of the upper elastic member 150 .

In addition, the bobbin 110 may have a lower escape groove 112b in one region of the lower surface corresponding to or aligned with the second frame connection parts 163-1 and 163-2 of the lower elastic member 160.

When the bobbin 110 moves in the first direction by the upper escape groove 112a and the lower escape groove 112b of the bobbin 110, the first frame connection part 153 and the second frame connection parts 163-1 and 163 Spatial interference between -2) and the bobbin 110 can be avoided, whereby the first frame connecting portion 153 of the upper elastic member 150 and the second frame connecting portion 163-1 of the lower elastic member 160, 163-2) can be easily elastically deformed.

The bobbin 110 may have at least one seating groove 105 on an outer surface 110b, and the coil 120 may be disposed or seated in the seating groove 105 of the bobbin 110 . For example, as shown in FIG. 4A , the seating groove 105 may have a ring shape based on the optical axis OA, but is not limited thereto.

The shape and number of the seating grooves 105 may correspond to the shape and number of coils disposed on the outer surface 110b of the bobbin 110 . In another embodiment, the bobbin 110 may not have a groove for seating the coil.

The bobbin 110 includes a first outer portion 110b-1 corresponding to the pillar portions 216a to 216d of the base 210, and a second outer portion 110b-1 corresponding to portions between the pillar portions 216a to 216d. 2) may be included.

Next, the coil 120 will be described.

The coil 120 is disposed on the outer portion or outer surface of the bobbin 110 and has electromagnetic interaction with the magnet 130 disposed on the base 210 .

A driving signal may be applied to the coil 120 to generate electromagnetic force by electromagnetic interaction with the magnet 130 . The driving signal provided at this time may be direct current, and may be in the form of voltage or current.

The AF movable unit elastically supported by the upper elastic member 150 and the lower elastic member 160 may move in the first direction by the electromagnetic force generated by the electromagnetic interaction between the coil 120 and the magnet 130 . It is possible to control the movement of the bobbin 110 in the first direction by adjusting the electromagnetic force, thereby performing the auto focusing function.

The AF movable unit may include the bobbin 110 elastically supported by the upper elastic member 150 and the lower elastic member 160, and components mounted on the bobbin 110 and moving together with the bobbin 110. For example, the AF movable unit may include a bobbin 110 and a coil 120 .

Referring to FIG. 4B , the coil 120 may be wound around the optical axis OA to surround the outer surface of the bobbin 110 so as to rotate clockwise or counterclockwise.

For example, the coil 120 may be disposed or wound in the seating groove 105 provided on the outer surface of the bobbin 110 .

For example, the coil 120 may have a ring shape surrounding the outer surface of the bobbin 110 in a clockwise or counterclockwise direction with respect to the optical axis OA. In FIG. 4B , the coil 120 may have a single ring shape, but is not limited thereto and may include two or more coil rings.

In another embodiment, the coil 120 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 OA, and the number of coil rings is the same as the number of magnets 130. It can be done, but is not limited thereto.

The coil 120 may be electrically connected to at least one of the upper elastic member 150 and the lower elastic member 160 . For example, the coil 120 may be electrically connected to the lower springs 160a and 160b, and a driving signal may be applied to the coil 120 through the lower springs 160a and 160b.

Next, the base 210 will be described.

5A is a first perspective view of the base 210 shown in FIG. 2, FIG. 5B is a second perspective view of the base 210 shown in FIG. 2, and FIG. 5C is a first perspective view of the base 210 shown in FIG. 3 is a perspective view, Figure 6 is a perspective view of the lower elastic member 160 shown in Figure 2, Figure 7 is a magnet coupled to the base 210 (130-1, 130-2) and the lower elastic member 160 8 shows the upper elastic member 150 coupled to the base 210, FIG. 9 is an exploded perspective view of the base 210 and the magnet 130, and FIG. 10 is the base 210 and the magnet of FIG. 130 is a combined perspective view, FIG. 11 is a partially enlarged view of the base 210 to which the lower elastic member 160 is coupled, and FIG. 12 is a cross-sectional view of the lens driving device 100 shown in FIG. 3 in the AB direction. .

Referring to FIGS. 5A to 5C , the base 210 is coupled to the cover member 300 and may form an accommodation space for the bobbin 110 together with the cover member 300 .

The base 210 may have an opening corresponding to the opening of the cover member and/or the opening of the bobbin 110 . The base 210 may have a shape matching or corresponding to the cover member 300, for example, a rectangular shape.

The base 210 may include a body 213 having an opening and pillar parts 216a to 216d protruding from the body 213 .

The body 213 of the base 210 may include corner portions 217a to 217d and side portions 218a to 218d positioned between the corner portions 217a to 217d.

Each of the pillar parts 216a to 216d may be disposed at a corresponding one of the corner parts 217a to 217d of the body 213 .

For example, the base 210 includes a first pillar part 216a, a second pillar part 216b, and a third pillar part 216c protruding upward at a predetermined height from the first to fourth corner parts 217a to 217d. , and a fourth pillar portion 216d.

The “pillars” of the base 210 may be expressed in terms of “protrusions”.

For example, each of the pillar parts 216a to 216d may have a polygonal pillar shape protruding in a vertical direction with respect to the upper surface of the body 213 of the base 210, but is not limited thereto. For example, the cross-sectional shape of each of the pillar parts 216a to 216d may be an 'L' shape or a polygonal shape, but is not limited thereto.

The body 213 of the base 210 may include an upper surface and outer surfaces, and the upper surface of the body 213 is a first surface located inside the first to fourth pillar parts 216a to 216d around the opening, And it may include a second surface located outside the first surface and higher than the first surface.

For example, the first surface of the upper surface of the body 213 of the base 210 may be a reference surface for the protruding heights of the pillar parts 216a to 216d or the height of the first stepped part 25a.

Also, for example, the second surface of the body 213 of the base 210 may be the upper surface of the protrusion 25c, and the lower elastic member 160 may be coupled to the second surface of the upper surface of the body 213.

Each of the side parts 218a to 218d of the body 213 of the base 210 may be disposed between two adjacent corner parts 217a to 217d.

For example, the length of each of the side parts 218a to 218d of the body 213 of the base 210 in the transverse direction is greater than the length of each of the corner parts 217a to 217d of the body 213 of the base 210 in the transverse direction. It may be long, but is not limited thereto.

The base 210 is located between two adjacent pillar parts 216a and 216b, 216b and 216c, 216c and 216d, and 216d and 216a, and has an opening positioned on the first stepped part 25a or the protruding part 25c. can include

The first magnet 130-1 may be disposed between the first pillar part 216a and the second pillar part 216b, and the second magnet 130-2 may be disposed between the third pillar part 216c and the fourth pillar part 216c. It may be disposed between the pillar parts 216d.

For example, the first magnet 130-1 may be disposed on the first side portion 218a of the body 213, and the second magnet 130-2 may be disposed on the third side portion 218C of the body 213. can be placed in

A first step portion 25a may be provided on each of the first side portion 210a and the third side portion 218c of the base 210, and a second step portion may be provided on each of the pillar portions 216a to 216d of the base 210. A portion 25b may be provided.

The first and second magnets 130-1 and 1302- may be disposed on the first stepped portion 25a and the second stepped portion 25b. The first and second stepped portions 25a and 25b are configured to prevent the first and second magnets 130-1 and 130-2 from inclining inwardly to the first and second magnets 130-1 and 130-2. ) can play a supporting role.

The first stepped portion 25a may have a step DP1 from the outer surface of the body 213, and the second stepped portion 25b may have a step DP2 from the outer surfaces of the pillar portions 216a to 216d. can

For example, the first stepped portion 25a includes a first surface 25a1 that is a stepped surface having a step difference from the outer surface 29a of the side portions 218a and 218c of the body 213 and the side portion 218a of the body 213, 218c) may include a second surface 25a2 positioned between the outer surface 29a and the first surface 25a1.

For example, the second stepped portion 25b is a first surface 25b1, which is a stepped surface having a step difference from the outer surface 92b of the pillar portions 216a to 216d, and the outer surface 92b of the pillar portions 216a to 216d. and a second surface 25b2 positioned between the first surface 25b1.

For example, the base 210 has a step DP1 from the first outer surface of the body 213 (eg, the outer surface of the first side portion 218a of the body 213) and is connected to the first pillar portion 216a. A first stepped portion 25a positioned between the two pillar portions 216b may be included. For example, the first outer surface of the body 213 may be the outer surface of the side on which the first magnet 130-1 is disposed among the outer surfaces of the body 213.

For example, each of the first pillar part 216a and the second pillar part 216b has a step DP2 from the first outer surface 92b of each of the first pillar part 216a and the second pillar part 216b. A second stepped portion 25b may be included. For example, the first outer surface 92b of each of the first pillar part 216a and the second pillar part 216b is the body ( 213) may be an outer surface in contact with the first side portion 218a.

In addition, the base 210 has a step from the second outer surface of the body 213 (eg, the outer surface of the third side portion 218c of the body 213), and the third pillar portion 216c and the fourth pillar portion ( 216d) may include a third stepped portion positioned between them.

Each of the third pillar part 216c and the fourth pillar part 216d may include a fourth stepped part having a step difference from the first outer surface of each of the third pillar part 216c and the fourth pillar part 216d. . For example, the first outer surface of each of the third pillar part 216c and the fourth pillar part 216d may be an outer surface in contact with the third side part 218c of the body 213 .

For example, the first magnet 130-1 may be disposed on the first stepped portion 25a and the second stepped portion 25b, and one surface of the first magnet 130-1 may be disposed on the first stepped portion 25a. ) and the first surface 25b1 of the second stepped portion 25b.

For example, the second magnet 130-2 may be disposed on the third stepped portion and the fourth stepped portion, and one surface of the second magnet 130-2 is the first surface of the third stepped portion and the fourth stepped portion. Can be accessed on page 1.

For example, the first level difference DP1 may be the same as the second level difference DP2, and the first level difference DP1 and the second level difference DP1 and the second level difference DP1 may be used to seat the first and second magnets 130-1 and 130-2. The step DP2 may be equal to or greater than the respective lengths of the first and second magnets 130-1 and 130-2. In this case, the lengths of the first and second magnets may be the lengths of the first and second steps DP and DP2 in the step direction.

The first surface 25a1 of the first stepped portion 25a and the first surface 25b1 of the second stepped portion 25b are the first and second magnets 130-1 and 130-2 and the base 210. ), it is possible to prevent the adhesive member (75, see FIG. 15) injected through the adhesive injection grooves 47a and 47b from flowing into the bobbin 110 of the lens driving device 100.

The first stepped portion 25a may be referred to as a "first protrusion (or first step)", and the second stepped portion 25b may be referred to as a "second protrusion (or second step)".

For example, the "first protrusion" may be located between the first pillar part 216a and the second pillar part 216b, and between the third pillar part 216c and the fourth pillar part 216d, and It may protrude in a vertical direction from the upper surface of the side portion. For example, the vertical direction may be a direction from the lower surface of the base 210 (eg, the lower surface of the body 213) to the upper surface of the base 210 (eg, the upper surface of the body 213).

The "second protrusion" may protrude in a first horizontal direction to a side surface of each of the pillar parts 216a to 216d. For example, the first horizontal direction may be a direction from each of the pillar parts 216a to 216d toward the first magnet 130-1 or the second magnet 130-2.

For example, based on the upper surface (91, see FIG. 11) of the side parts 218a and 281c of the base 210, the protruding first height of the first protrusion is set based on the side surface 92a of the pillar parts 216a to 216d. 2 may be the same as the protruding second height of the protrusion, but is not limited thereto. In another embodiment, the first height may be greater than the second height. In another embodiment, the first height may be smaller than the second height. The side surface 92a of the pillar parts 216a to 216d may be the second surface 25b2 of the second stepped part 25b.

For example, the first length or thickness D1 of the first protrusion in the direction of the first step DP1 may be smaller than the first step DP1. In addition, the thickness D1 of the first protrusion may be different from the length or thickness D2 of the second protrusion in the direction of the second step DP2. For example, it may be D1<D2.

A thickness D2 of the second protrusion may gradually decrease in a direction in which the second protrusion protrudes. This is to avoid spatial interference between the bobbin 110 and the column parts 216a to 216d of the base 210 when the bobbin 110 moves.

For example, side surfaces 92a of the pillar parts (eg, 216a and 216b, 216c and 216d) may be opposite sides of two adjacent pillar parts (eg, 216a and 216b, and 216c and 216d).

The side surface 92b of the pillar parts 216a to 216d may be any one of the outer surfaces of the pillar parts 216a to 216d, is perpendicular to the side surface 92a of the pillar parts 216a to 216d, and is the first side part of the base 210. Or it may be a side parallel to the outer side of the third side.

For example, the first protrusion may contact the side surfaces 92a of the first and second pillar parts 216a and 216a and 216b, and the first protrusion may contact the side surfaces of the third and fourth pillar parts ( 92a), but is not limited thereto. In another embodiment, the first protrusion may be spaced apart from the side surface 92a of each of the two adjacent pillar parts.

For example, the first protrusion may contact the second protrusion, but is not limited thereto. In another embodiment, both may be spaced apart from each other.

In addition, in FIGS. 5A to 5C, one first protrusion is disposed on each of the first and third side parts 218a and 218c of the base 210, and one on each side surface 92a of the pillar parts 216a to 216d. The second protrusion of the disposed, but is not limited thereto.

In another embodiment, two or more first protrusions spaced apart from each other may be disposed on each of the first and third side parts 218a and 218c of the base 210, and each side surface 92a of the pillar parts 218a to 218d ), two or more second protrusions 25b spaced apart from each other may be disposed.

Based on the upper surface of the body 213 of the base 210, the heights of the pillar parts 216a to 216d are higher than the height of the first protrusion.

Each of the second and fourth side parts 218b and 218d of the body 213 of the base 210 has a protrusion 25c protruding in a vertical direction or an optical axis direction based on the upper surface of the body 213 of the base 210. can be provided. The protruding portion 25c may protrude from the upper surface around the opening of the body 213 .

For example, the protrusion 25c may be positioned between the second pillar 216b and the third pillar 216c, and the protrusion 25c may be positioned between the first pillar 216a and the fourth pillar 216d. can be located in between. An upper surface of the protruding portion 25c may be located higher than an upper surface of the body.

The protruding portion 25c may come into contact with the side surface 92c of the two adjacent pillar portions (eg, 216a and 216d, 216b and 216c), but is not limited thereto.

Each of the pillar parts 216a to 216d may further include a side surface 92d positioned between the second stepped part 25b and the side surface 92c. The side surface 92d of each of the pillar parts 216a to 216d may be a surface facing the first side part 110b-1 of the bobbin 110.

One side surface of the second protrusion may be positioned on the same plane as the side surface 92d of the pillar parts 216a to 216d, and the side surface 92d of the pillar parts 216a to 216d is a first stopper 23 It can be positioned so as to face.

For example, the side surface 92d of the pillar parts 216a to 216d is based on a virtual plane or line parallel to the side surface 92b of the pillar parts 216a to 216d or the side surface 92b of the pillar parts 216a to 216d. It may be a surface inclined at a constant angle (θ1, see FIG. 11).

For example, the angle θ1 of the side surface 92d of the pillar parts 216a to 216d is the outside of the first side part 110b-1 of the bobbin 110 corresponding to the side surface 92d of the pillar parts 216a to 216d. It may be the same as the side angle θ2, but is not limited thereto.

For example, the angle θ1 of the side surface 92d of the pillar parts 216a to 216d may be 25 degrees to 60 degrees. For example, the angle θ1 of the side surface 92d of the pillar parts 216a to 216d may be 40 degrees to 50 degrees.

Each of the pillar parts 216a to 216d may further include a side surface 92e positioned between the side surface 92c and the side surface 92d.

For example, the side surface 92e of the pillar parts 216a to 216d may be parallel to the side surface 92b of the pillar parts 216a to 216d, but is not limited thereto.

For example, each of the pillar parts 216a to 216d may include a curved surface formed of a side surface 92d and a side surface 92e.

The base 210 may include a first stopper 23 protruding from the upper surface of the body 213 . The first stopper 23 may be provided to correspond to each of the pillar parts 216a to 216d, but is not limited thereto. The first stopper 23 may be expressed as a "lower stopper" instead.

For example, the first stopper 23 may be disposed to correspond to a bent portion of the second frame connection portions 163-1 and 163-2 of the lower elastic member 160.

In order to avoid spatial interference between the bobbin 110 and the lower elastic member 160, the first stopper 23 includes the second frame connecting portion 163-1 of the lower springs 160a and 160b coupled to the base 210. 163-2) may be located higher.

The first stopper 23 of the base 210 can prevent the lower surface or lower end of the bobbin 210 from directly colliding with the body 210 of the base 210 when an external impact occurs.

The base 210 may include a support protrusion 24 protruding from the upper surface of the body 210 .

The support protrusion 24 may connect the first stepped portion (or first protrusion) disposed on two adjacent side parts of the body 213 and the protrusion 25c.

For example, the support protrusion 24 may connect the inner surface of the first stepped portion 25a (or the first protrusion) and the inner surface of the protrusion 25c.

The support protrusion 24 may serve to support the first stepped portion 25a (or the first protrusion) and the protrusion 25c. The height of the support protrusion 24 based on the upper surface of the body of the base 210 is greater than the height of the first surface 25a1 of the first stepped portion 25a (or the height of the first protrusion) and the height of the protrusion 25c. can be low

The support protrusion 24 may be positioned between the pillar parts 216a to 216d and the opening of the base 210 , and the first stopper 23 may be positioned on the support protrusion 24 .

For coupling with the upper elastic member 150, the base 210 may include a first protrusion 22 disposed on or on the top of at least one of the pillar parts 216a to 216d.

For example, the base 210 may include at least one first protrusion 22 protruding from the upper surface of each of the pillar parts 216a to 216d.

The lower elastic member 160 may be coupled to the base 210 between the first pillar part 216a and the fourth pillar part 216d adjacent to the first pillar part 216a.

Also, the lower elastic member 160 may be coupled to the base 210 between the second pillar part 216b and the third pillar part 216c adjacent to the second pillar part 216b.

The lower elastic member 160 may not be coupled to the base 210 between the first pillar part 216a and the second pillar part 216b and between the third pillar part 216c and the fourth pillar part 216d. can

The base 210 is a protruding part located between the first pillar part 216a and the fourth pillar part 216d and between the second pillar part 216b and the third pillar part 216c and protruding from the body 213. (25c), and at least one second protrusion (21) disposed on the upper surface of the protrusion (25c).

In the embodiment, the number of second projections 21 is two, but is not limited thereto, and the number of second projections may be one or more.

For example, two second protrusions 21 may be disposed spaced apart from each other on the protrusion 25c of the base 210, and each of the second protrusions 21 may protrude from the upper surface of the protrusion 25c. .

For example, the second protrusions 21 are the second protrusions of the body 213 where the magnets 130-1 and 130-2 are not disposed in order to avoid spatial interference with the magnets 130-1 and 130-2. And it may be disposed on the fourth side parts 218b and 218d.

A guide protrusion 27 may be disposed on the fourth side portion 218d of the body 213 of the base 210 . The guide protrusion 27 may be disposed on the protrusion 25c disposed on the fourth side portion 218d of the body 213 . The guide protrusion 27 increases the contact area of the lower springs 160-1 and 160-2 with the extensions 62a and 62b of the second outer frames, thereby increasing the contact area of the lower springs adjacent to the connection terminals 164a and 164b. It may serve to stably fix parts of the second outer frame of (160-1, 160-2) to the base 210.

For example, the guide protrusion 27 may be disposed between the second protrusions 21 disposed on the protrusion 25c.

A seating groove 28 in which the connection terminals 164a and 164b of the lower springs 160a and 160b are seated may be provided on the outer surface of the fourth side portion 218d of the body 213 of the base 210. .

In addition, a step 211 may be provided at the lower end of the outer surface of the body 213 of the base 210, and the step 211 may contact lower ends of the side plates of the cover member 300, and the cover member ( 300) can be guided. At this time, the step 211 of the base 210 and the lower ends of the side plates of the cover member 300 may be adhesively fixed and sealed with an adhesive or the like.

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

6 to 8, the upper elastic member 150 and the lower elastic member 160 are coupled to the bobbin 110 and the base 210, and elastically support the bobbin 110.

The upper elastic member 150 may be coupled to the top, top surface, or top of the bobbin 110 and the top, top surface, or top of the pillar parts 216a to 216d of the base 210 .

The lower elastic member 160 may be coupled to the bottom, bottom, or bottom of the bobbin 110 and the side parts 218b and 218d of the base 210 .

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.

The upper elastic member 150 includes a first inner frame 151 coupled to the first coupling part 113 of the bobbin 110 and a first outer frame 152 coupled to the first protrusion 22 of the base 210. ), and a first frame connecting portion 153 connecting the first inner frame 151 and the first outer frame 152 .

The first outer frame 152 may be disposed on upper surfaces of the pillar parts 216a to 216d and upper surfaces of the first and second magnets 130-1 and 130-2.

In FIG. 8 , the upper elastic member 150 is implemented as one upper spring, but is not limited thereto, and in another embodiment, the upper elastic member may include a plurality of upper springs spaced apart or separated from each other.

For example, the first inner frame 151 of the upper elastic member 150 may be provided with a through hole 151a or a groove for coupling with the first coupling part 113 of the bobbin 110, and the first outer frame A through hole 152a or a groove for coupling with the first protrusion 22 of the base 210 may be provided in 152 .

The upper elastic member 150 coupled to the base 210 may be spaced apart from the inner surface of the cover member 300 .

In addition, the first inner frame 151 of the upper elastic member 150 coupled to the bobbin 110 may be inclined or bent lower than the first outer frame 152 fixed to the pillar parts 216a to 216d.

The lower elastic member 160 may be located inside the pillar parts 126a to 126d and may include a first lower spring 160a and a second lower spring 160b spaced apart from each other. The first and second lower springs 160a and 160b may be spaced apart from each other and may be electrically isolated from each other.

Each of the first and second lower springs 160a and 160b is coupled to the second inner frame 161 coupled to the second coupling part 117 of the bobbin 110, the second protrusion 21 of the base 210, and The coupled second outer frames 162-1 and 162-2 and the second frame connectors 163-1 and 163-2 connecting the second inner frame 161 and the second outer frames 162-1 and 162-2 can include

For example, the second outer frame 162 may be disposed on the top surface of the side parts 218b and 218d of the body 213 of the base 210 or/and the top surface of the protrusion 25c.

For example, each of the first and second lower springs 160a and 160b includes one second inner frame 161, two second outer frames 162-1 and 162-2, and two second frames. The connection parts 163-1 and 163-2 may be included, but the number of the second inner frame, the second outer frame, and the second frame connection part is not limited thereto.

Each of the two second outer frames 162 - 1 and 162 - 2 may be coupled to the second protrusion 21 provided on the protrusion 25c of the base 210 .

For example, the second inner frame 161 of each of the first and second lower springs 160a and 160b is provided with a through hole 161a or a groove for coupling with the second coupling part 117 of the bobbin 110. The second outer frames 162-1 and 162-2 may be provided with a through hole 162a or a groove for coupling with the second protrusion 21 of the base 210.

Between the first coupling portion 113 of the bobbin 110 and the through hole 151a of the first inner frame 151, the second coupling portion 117 of the bobbin 110 and the second coupling portion 113 of the bobbin 110 by thermal fusion. Between the through holes 161a of the inner frame 152, between the first protrusion 22 of the base 210 and the through hole 152a of the first outer frame 152, the second protrusion 21 of the base 210 ) and the through holes 162a of the second outer frames 162-1 and 162-2 may be bonded to each other.

Each of the first and second frame connectors 153, 163-1 and 163-2 may be bent or bent (or curved) at least once to form a pattern having a predetermined shape.

The bobbin 110 may be elastically (or elastically) supported for upward and/or downward motion in the first direction through a change in position and fine deformation of the first and second frame connectors 153 and 163 .

The second frame connection part 163 may include a part (or a bent part) surrounding at least a part of the side surface of the first stopper 23 .

For example, the portion covered by the bent portion of the second frame connection portion 163 may include at least one of the side surfaces of the first stopper 23, but is not limited thereto.

In another embodiment, the portion covered by the bent portion of the second frame connecting portion 163 may include a partial area of at least one of the side surfaces of the first stopper 23 .

For example, the portion covered by the bent portion of the second frame connecting portion 163 may include at least one of the side surfaces of the first stopper 230 and a portion of other side surfaces.

For example, the bent portion of the second frame connecting portion 163 may include a portion positioned between the first stopper 23 and the side surface 92d of the pillar portions 216a to 216d.

For example, the second frame connecting portion 163 may include a portion (or a bent portion) surrounding the remaining sides other than the first side of the first stopper 23, and the first side of the first stopper 23 is the base It may be the side facing the opening of 210.

The coil 120 may be coupled to the second inner frames 161 of the first and second lower springs 160a and 160b, and may be electrically connected to the first and second lower springs 160a and 160b. can

Referring to FIG. 6 , a first bonding part 19a to which one end of the coil 120 is bonded may be provided on an upper surface of one end of the second inner frame 161 of the first lower spring 160a. A second bonding part 19b to which the other end of the coil 120 is bonded may be provided on an upper surface of one end of the second inner frame 161 of the lower spring 160b.

A groove (not shown) for guiding the coil 120 may be formed in each of the first bonding portion 19a and the second bonding portion 19b.

The coil 120 may be bonded to the first and second bonding parts 19a and 19b by a conductive adhesive member such as solder. Regarding the first and second bonding parts 19a and 19b, the term "bonding part" may be used as a term for a pad part, a connection terminal, a solder part, or an electrode part.

In order to prevent an oscillation phenomenon when the bobbin 110 moves, a damper is provided between the first frame connecting portion 153 of the upper elastic member 150 and the upper surface of the bobbin 110 (eg, the first escape groove 112a) can be placed.

In addition, a damper (not shown) may also be disposed between the second frame connection parts 163-1 and 163-2 of the lower elastic member 160 and the lower surface of the bobbin 110, for example, the second escape groove 112b. .

In addition, the part where the bobbin 110 and the base 210 and the upper elastic member 150 are coupled, or / and the part where the bobbin 110 and the base 210 and the lower elastic member 160 are coupled, the damper is may be applied. For example, the damper may be gel-type silicone, but is not limited thereto.

Each of the first and second lower springs 160a and 160b may be disposed on an upper surface of the base 210 .

Each of the first and second lower springs 160a and 160b may include first and second connection terminals 164a and 164b for electrical connection with the outside. Regarding the first and second connection terminals 164a and 164b, the term "connection terminal" may be used as a term such as a pad part, a bonding part, a solder part, or an electrode part.

Each of the first lower spring 160-1 and the second lower spring 160-2 is connected to the second outer frame 162 and covers the outer surface of the side portion 218d of the body 213 of the base 210. It may include connection terminals 164a and 164b that are bent and extended in the direction toward which they are directed.

For example, the first lower spring 160a is connected to the outer surface of the second outer frame 162-1 and the outer surface of the protrusion 25c located on the side part 218d of the body 213 of the base 210. It may include a first connection terminal 164a that is bent and extended in a direction toward the .

For example, the second lower spring 160b is connected to the outer surface of the second outer frame 162-1 and the outer surface of the protrusion 25c located on the side part 218d of the body 213 of the base 210. It may include a second connection terminal 164b that is bent and extended in a direction toward the .

For example, the outer surface of the fourth side portion 218d of the body 213 is the outer surface of the first side portion 218a of the body 213 on which the first magnet 130-1 is disposed, and the second magnet 130-1. 2) may be an outer surface different from the outer surface of the third side portion 218c of the body 213 on which the body 213 is disposed. For example, the outer surface of the fourth side part 218d of the body 213 is perpendicular to the outer surface of the first side part 218a of the body 213 or the outer surface of the third side part 218c of the body 213. can

The first and second connection terminals 164a and 164b of the first and second lower springs 160a and 160b are protrusions 25c disposed on the fourth side portion 218d of the body 213 of the base 210. ) Can be spaced apart from each other in the seating groove 28 provided on the outer surface of the outer surface and the outer surface of the fourth side portion 218d of the body 213, and can be in contact with the seating groove 28 of the base 210.

For example, the first and second connection terminals 164a and 164b may be disposed on the outer surface of the protrusion 25c of the fourth side 218d of the body 213 of the base 210, which is connected to the outside and electrically. This is to facilitate the soldering work for the normal connection. However, the embodiment is not limited thereto, and in another embodiment, the first and second connection terminals of the first and second lower springs may be disposed on outer surfaces of two different side parts of the base 210 .

Each of the first and second lower springs 160a and 160b may include extensions 62a and 62b extending from the other end of the second outer frame 162-1 toward the guide protrusion 27.

The second outer frame of the first lower spring 160a is disposed on one side of the guide protrusion 27 of the base 210, and the second outer frame of the second lower spring 160b is the guide protrusion of the base 210 ( 27) may be placed on the other side.

The extension 62a of the second outer frame of the first lower spring 160a may extend from the second outer frame of the first lower spring 160a toward the second outer frame of the second lower spring 160b. .

In addition, the extension 62b of the second outer frame of the second lower spring 160b may extend from the second outer frame of the second lower spring 160b toward the second outer frame of the first lower spring 160a. there is. An adhesive member may be disposed between the guide protrusion 27 and the extension portions 62a and 62b.

The extensions 62a and 62b can increase the adhesion between the second outer frame 162-1 and the base 210 by increasing the adhesion area with the guide protrusion 27, and the lower springs 160a and 160b The movement of the second outer frame 162-1 may be suppressed, thereby preventing the second outer frame 162-1 from being separated from the base 210.

Next, the magnet 130 will be described.

9 and 10, the magnet 130 may be disposed on at least one of the side parts 218a to 218d of the body 213 of the base 210, and has an electromagnetic interaction with the coil 120. As a result, the bobbin 110 can be moved in the first direction.

For example, the magnet 130 includes a first magnet 130-1 disposed on one of two side parts 218a and 218c facing each other of the body 213 of the base 210, and two A second magnet 130-2 disposed on the other one 218c of the side parts 218a and 218c may be included.

The first and second magnets 130-1 and 130-2 disposed on the base 210 at the initial position of the AF moving part, for example, the bobbin 110, are at least a portion of the coil 120 in a direction perpendicular to the optical axis. can overlap with Here, the initial position of the AF movable part, for example, 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 and lower elastic members 150 and 160 are moved only by the weight of the AF movable part. It may be a position where the AF movable unit is placed as it is elastically deformed.

In addition, the initial position of the AF movable part may be a position where the AF movable part is placed 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. there is.

Each of the first and second magnets 130 may have a shape corresponding to the side parts 218a and 218c of the body 213 of the base 210, for example, a rectangular parallelepiped shape, but is not limited thereto. .

For example, each of the first and second magnets 130-1 and 130-2 is disposed so that the first surface facing the coil 120 is the S pole and the second surface opposite the first surface is the N pole. It may be a monopole magnetized magnet. In another embodiment, the first surface of each of the first and second magnets 130-1 and 130-2 may have an N pole and a second surface may have an S pole.

As shown in FIG. 10 , of the first and second magnets 130-1 and 130-2 disposed on the first and third side parts 218a and 218c of the body 213 of the base 210. The top surface may be positioned below the top surface of the pillar parts 216a to 216d or may be positioned at the same height as the top surface of the pillar parts 216a to 216d.

Also, for example, in another embodiment, the magnet 130 may be an anode magnetized magnet divided into two in a direction perpendicular to the optical axis direction. In this case, the magnet 130 may be implemented with ferrite, alnico, or rare earth magnet.

The magnet 130 having an anode magnetization structure may include a first magnet part including an N pole and an S pole, a second magnet part including an S pole and an N pole, 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. In another embodiment, the number of magnets 130 may be at least two, and the surface of the magnet 130 facing the coil 120 may be formed as a flat surface, but is not limited thereto and may be formed as a curved surface. .

A general lens driving device has a structure including three types of injection molding: a bobbin for mounting a lens, a housing for mounting a magnet, and a base.

On the other hand, the embodiment does not include housing parts, and the base 210 is a structure in which the function and role of the housing are combined, and the structure of the lens driving device can be simplified, and since it does not include housing parts, process and input Cost can be reduced by reducing the cost of resources, for example, manpower and materials.

13 is an exploded perspective view of a base 210-1 and first and second magnets 130-1 and 130-2 according to another embodiment, and FIG. 14 is a base 210-1 of FIG. A combined perspective view of first and second magnets 130-1 and 130-2, FIG. 15 is a partially enlarged view of the base 210-1 of FIG. 13, and FIG. 16 is a base 210-1 of FIG. 13 It is a cross-sectional view in the direction AB of FIG. 3 of the lens driving device equipped with . Descriptions of FIGS. 1 to 12 may be applied to the same reference numerals as those of FIGS. 1 to 12 among the reference numerals shown in FIGS. 13 to 16 .

Referring to FIGS. 13 to 16 , the base 210-1 may further include a second stopper 31 disposed on the top surface 51 or the top of the pillar parts 216a to 216d.

The second stopper 31 may be expressed as an “upper stopper” instead.

The second stopper 31 may be located on the second stepped portion 25b (or the upper surface of the second protrusion).

For example, the second stopper 31 may have a structure in which one end or an upper end of the second stepped portion 25b protrudes in a vertical direction or an optical axis direction with respect to the upper surfaces 51 of the pillar portions 216a to 216d. A cross section of the stopper 31 in a direction perpendicular to the optical axis direction may have the same shape as the cross section of the protruding part (or the second protruding part) of the first stepped portion 25b, but is not limited thereto, and other In the embodiment, both may have different shapes.

For example, one side of the second stopper 31 may be an extension of the first surface 25b1 of the second stepped portion 25b.

The height H2 of the second stopper 31 based on the top surface 51 of the pillar parts 216a to 216d may be greater than the height H1 of the first protrusion 22 (H2>H1). Or, in another embodiment, H2=H1.

In addition, the height of the second stopper 31 based on the upper surface 51 of the pillar parts 216a to 216d may be higher than the height of the upper elastic member 150 coupled to the first protrusion 22 .

The second stopper 31 may serve to secure a space or gap through which the bobbin 110 can move during AF operation.

The base 210-1 includes grooves 41a formed on the upper surface 91 of the first and third side parts 218a and 218c of the body 213, and side surfaces 92a of the pillar parts 216a to 216d, respectively. ) It may further include a groove (41b) formed or provided.

The groove 41a is the upper surface of the body 213 located between the first corner portion 217a and the second corner portion 217b of the body 213 of the base 210, and the third corner portion 27c) and the fourth corner portion 217d may be disposed on the upper surface of the body 213 located between.

For example, the groove 41a between the first corner portion 217a and the second corner portion 217b may be formed on the second surface 25a2 of the first stepped portion 25a, and the first magnet 130- 1) can be encountered.

For example, the groove 41a between the third corner portion 217c and the fourth corner portion 217d may be formed on the second surface of the third stepped portion, and may face the second magnet 130-2. .

The groove 41a may extend from one of the two adjacent pillar parts (eg, 216a and 216b, 216c and 216d) to the other one, and may extend from the two adjacent pillar parts (eg, 216a and 216b, 216c and 216c). 216d).

The groove 41b may be disposed on the second stepped portion 25b of each of the first and second pillar portions 216a and 216b, and may face the first magnet 130-1. Also, the groove 41b may be disposed on the fourth stepped portion of each of the third and fourth pillar portions 216c and 216d, and may face the second magnet 130-2.

The groove 41b may extend from the lower end of each of the pillar parts 216a to 216d to the upper end (or the stepped part 49 (see FIG. 15)), and the lower and upper ends of each of the pillar parts 216a to 216d (or the stepped part 49) part 49).

For example, each of the grooves 41a and 41b may have a straight line shape and may be directly connected to each other. Grooves 41a and 41b may be perpendicular to each other, but are not limited thereto.

The groove 41a is formed between the upper surface 91 of the side parts 218a and 218c of the body of the base 210-1 and the lower surfaces of the first and second magnets 130-1 and 130-2. ) can act as a guide passage so that it flows well and is evenly distributed.

The groove 41b is a guide so that the adhesive member 75 can flow smoothly and be evenly distributed between the side surface 92 of the pillar parts 216a to 216d and the first and second magnets 130-1 and 130-2. can serve as a conduit for For example, the adhesive member 75 may be a UV bond or the like, but is not limited thereto.

The adhesive member 75 may be disposed in the grooves 41a and 41b. That is, by the grooves 41a and 41b, the adhesive member 75 is applied to the upper surface 91 of the side parts 218a and 218c of the body 213 of the base 210-1 and the pillar parts 216a to 216d. can be evenly supplied to the side surface 92a of the base 210-1 and the adhesive strength between the first and second magnets 130-1 and 130-2 can be improved.

For example, the groove 41a is formed on the upper surface between the first surface 25a1 (or the first protrusion) of the first stepped portion 25a and the side portions 218a and 218c of the body 213 of the base 210-1 ( 91) may be positioned so as to be aligned with the center (or center line).

The groove 41b may be aligned with the center (or center line) of the side surface 92a of the pillar parts 216a to 216d or the second surface 25b2 of the second stepped part 25b.

The base 210-1 may include a stepped portion 49 having a step DP3 in a direction from the top surface of the pillar portions 216a to 216d to the bottom surface of the pillar portions 216a to 216d based on the top surface 51 of the pillar portions 216a to 216d. there is.

Upper ends of the pillar parts 216a to 216d of the base 210-1 may have a double stair structure by the stepped part 49. The stepped portion 49 may be positioned below the upper surfaces 51 of the pillar portions 216a to 216d.

For example, the top surface of the stepped portion 49 may be parallel to the top surface 51 of the pillar portions 216a to 216d. The groove 41b may contact the upper surface of the stepped portion 49 .

As shown in FIG. 14, the upper surface of the second stopper 31 may be located higher than the upper or upper surfaces of the first and second magnets 130-1 and 130-2 mounted on the base 210-1. can Also, tops or top surfaces of the first and second magnets 130 - 1 and 130 - 2 may be positioned on top of the stepped portion 49 .

The adhesive member 75 for bonding the first and second magnets 130-1 and 130-2 and the base 210-1 may be provided or supplied to the stepped portion 49, and the stepped portion 49 ) may serve to facilitate the supply and application of the adhesive member 75.

In addition, the base 210-1 includes an adhesive injection groove 47a provided on the outer surface of the side portions 218a and 219c of the body 213, and an adhesive provided on the side surface 92b of the pillar portions 216a to 216d. An injection groove 47b may be further included.

The adhesive injection groove 47a may be provided on the first outer surface of the body 213 of the base 210, and the first outer surface of the body 213 is the first or third side surface of the body 213. It may be an outer surface. For example, the adhesive injection groove 47a may be disposed on an outer surface adjacent to the upper surface of the body 213 where the groove 41a is disposed. The side surface 92b of the pillar parts 216a to 216d may be a side surface parallel to the first outer surface of the body 213 .

The adhesive injection groove 47a may be connected to the first stepped portion 25a.

For example, the adhesive injection groove 47a may contact the upper surface 91 of the side parts 218a and 218c of the body 213 of the base 210-1, and the side parts 218c and 218c of the body 213 It may have an opening that opens to the upper surface of the.

The adhesive injection groove 47b may be connected to the second stepped portion 25b. For example, the adhesive injection groove 47b may be connected to the second surface 25b2 of the second stepped portion 25b.

The adhesive injection groove 47b may come into contact with the side surfaces 92a of the pillar parts 216a to 216d and may have an opening open to the side surface 92a of the pillar parts 216a to 216d.

After the first and second magnets 130-1 and 130-2 are fixed to the base 210-1 by the adhesive member 75, the adhesive member is applied through the adhesive injection grooves 47a and 47b to the base 210-1. Adhesion between the 210-1 and the first and second magnets 130-1 and 130-2 may be further improved.

17A is a perspective view of a base 210-2 according to another embodiment, FIG. 17B is a plan view of the base 210-2 shown in FIG. 17A, and FIG. 18 is a base 210-2 and a bobbin of FIG. 17A. It is a plan view of (110).

17A to 18, a base 210-2 is a modified example of the base 210-1 shown in FIG. 13, and the base 210-2 includes at least one of the pillar parts 216a to 216d. Protrusions 71a to 71d disposed on the inner or side surface 92d may be further included.

At this time, the protrusions 71a to 71d may serve to suppress the degree of rotation of the bobbin 110 with respect to the optical axis. “The protrusions 71a to 71d may be expressed in terms such as a rotation restraint, a stopper, or a locking jaw.

For example, the base 210-2 may include protruding parts 71a to 71d corresponding to the pillar parts 216a to 216d. In FIG. 17A, one protrusion is provided on each pillar, but the embodiment is not limited thereto, and in another embodiment, at least two or more of the pillars may be provided with a protrusion.

Each of the protruding parts 71a to 71d of the base 210-2 faces the outer surface of the first side part 110b-1 of the bobbin 110 from the inner surface or side surface 92d of the pillar parts 216a to 216d. may protrude in either direction.

The distance d1 (see FIG. 19) between the outer surface of the first side part 110b-1 of the bobbin 110 and the protrusions 71a to 71d is the outer surface of the first side part 110b-1 of the bobbin 110. It may be shorter than the separation distance d2 between the inner surface or the side surface 92d of the pillar parts 216a to 216d (d1<d2).

For example, d1 may be the shortest separation distance between the outer surface of the first side portion 110b-1 of the bobbin 110 and the protruding portions 71a to 71d. In addition, d2 may be the shortest separation distance between the outer surface of the first side part 110b-1 of the bobbin 110 and the inner surface or side surface 92d of the pillar parts 216a to 216d.

The outer surface of the first side part 110b-1 of the bobbin 110 may be an outer surface facing the pillar parts 216a to 216d, and the side surface 92d of the pillar parts 216a to 216d is the bobbin 110 It may be an inner surface facing the outer surface of the first side portion 110b-1.

For example, each of the protrusions 71a to 71d of the base 210-2 may be disposed on the side surface 92d and side surface 92e of the corresponding one of the pillar parts 216a to 216d, and the adjacent base ( 210 may extend to the side portions 218b and 218d of the body 213.

For example, the protruding parts 71a to 71d of the base 210-2 may protrude in the direction of the side parts 218b and 218d of the body 213 based on the side surface 92c of the pillar parts 216a to 216d.

For example, each of the protrusions 71a to 71d of the base 210-2 may have a bent shape.

FIG. 19 is an enlarged view of the dotted line portion 11 of FIG. 18 .

Referring to FIG. 19 , the protrusions 71a to 71d are bent and extended from the first portion 81a disposed on the side surface 92d of the pillar portion 216a to 216d and the first portion 81a, and the pillar portion 216a to 216d. (216a to 216d) may include a second portion (81b) protruding from the side surface (92c). For example, the side surfaces 92c of the pillar parts 216a to 216d are the opposite side surfaces of the first pillar part 216a and the fourth pillar part 216d and the second pillar part 216b and the third pillar part ( 216c) may be any one of the mutually facing sides. For example, the side surface 92c may be a side surface facing the protruding portion 25c.

For example, each of the protrusions 71a to 71d of the base 210-2 includes a first portion 81a (see FIG. 19) disposed on a corresponding side surface 92d of the pillar portions 216a to 216d, and It may include a second part 81b disposed on the side surface 92e, and the second part 81b may be bent from the first part 81a.

In order to avoid spatial interference with the first and second magnets 130-1 and 130-2, the protrusions 71a to 71d are formed on the side surfaces 92a or/and the first step of the pillars 216a to 216d. It may be spaced apart from the portion 25a, but is not limited thereto.

The bent angle of the first part 81a and the second part 81b of the protrusions 71a to 71d may be the same as the angle between the side surface 92d and the side surface 92e of the pillar parts 216a to 216d. , but is not limited thereto. For example, a bent angle between the first portion 81a and the second portion 81b of the protrusions 71a to 71d may be an obtuse angle.

For example, the horizontal length L2 of the second portion 81b of the protrusions 71a to 71d may be shorter than the horizontal length L1 of the first portion 81a of the protrusions 71a to 71d ( L2<L1), but is not limited thereto. In another embodiment, the horizontal length of the first portion 81a of the protrusions 71a to 71d may be equal to or smaller than the length of the second portion 81b of the protrusions 71a to 71d in the horizontal direction.

Also, for example, the horizontal length L1 of the first portion 81a of the protrusions 71a to 71d may be smaller than the horizontal length of the side surface 92d of the pillar portions 216a to 216d. This is to reduce foreign substances or particles that may be generated due to contact or collision with the bobbin 110 by reducing the area of the protrusions 71a to 71d that can come into contact with the bobbin.

For example, the thickness of the first portion 81a of the protrusions 71a to 71d may be the same as the thickness of the second portion 81b, but is not limited thereto. It may be greater than the thickness of the part or vice versa.

In the embodiment of FIG. 17A , the protrusions 71a to 71d include both the first portion 81a and the second portion 81b, but are not limited thereto. In another embodiment, the protrusion may include only one of the first part and the second part.

The protrusions 71a to 71d may contact the upper surface of the body 213 of the base 210-2 and may be connected to the protrusion 25c of the base 210-2.

For example, the second portion 81b of the protrusions 71a to 71d may be connected to the protrusion 25c of the base 21-2.

For example, the second portion 81b of the protrusions 71a to 71d may contact the inner surface of the protrusion 25c of the base 210 .

The protrusions 71a to 72d may be spaced apart from the support protrusion 24 and may be positioned between the support protrusion 24 and the side surface 92d of the pillar parts 216a to 216d.

The height of the protrusions 71a to 71d based on the upper surface of the body 213 of the base 210-2 may be greater than the height of the protrusion 25c of the base 210-2, and the height of the pillars 216a to 216d It may be lower than the height of the upper surface.

Also, for example, the heights of the protrusions 71a to 71d based on the upper surface of the body 213 of the base 210-2 may be greater than the heights of the second protrusions 21 and the heights of the first stopper 23.

At the initial position of the bobbin 110, the protruding portions 71a to 71d may overlap the coil 120 in a direction from the first corner portion to the second corner portion and from the first corner portion to the fourth corner portion.

Since the protrusions 71a to 71d and the coil 120 overlap each other, the rotation of the bobbin 110 causes the coil 120 mounted on the bobbin 110 to rotate, thereby extending the protrusions 71a to 71d. ) By being in contact with, the rotation of the bobbin 110 exceeding a predetermined angle can be suppressed.

In another embodiment, one surface of the outer circumferential surface of the bobbin 110 is in contact with the protrusions 71a to 71d due to the rotation of the bobbin 110, so that the bobbin 110 may be prevented from rotating beyond a predetermined angle.

As a result, it is possible to reduce the generation of foreign substances or particles due to the collision between the bobbin 110 and the protrusions 71a to 71d, and to prevent deformation or damage of the bobbin 110 or the base 210.

The protrusions 71a to 71d may serve to reinforce the durability of the pillar parts 216a to 216d of the base 210, and prevent the pillar parts 216a to 216d from being bent or deformed by impact or the like. .

The embodiment can suppress the rotation of the bobbin 110 beyond the intended degree by impact or the like by the protrusions 71a to 71d, and occurs due to the contact between the bobbin 110 and the pillar portion of the base 210 impurities can be reduced. In addition, the protrusions 71a to 71d may serve as stoppers in a direction perpendicular to the optical axis direction, and may also serve to prevent the pillar portion from being bent.

In the initial position of the bobbin 110, the outer surface of the first side portion 110b-1 of the bobbin 110 may be spaced apart from the protruding portions 71a to 71d of the base 210-2.

In the initial position of the bobbin 110, the first edge 39a of the bobbin 110 is directed from the first pillar part 216a to the second pillar part 216b and from the second pillar part 216b to the third pillar part 216b. It may overlap with the protruding portion (eg, 71a) in a direction toward the pillar portion 216c.

For example, in the initial position of the bobbin 110, the first edge 39a of the bobbin 110 extends from the first pillar part 216a to the second pillar part 216b in the direction of the pillar parts 216a to 216d. It may overlap with the side surface 92e.

In addition, in the initial position of the bobbin 110, the first edge 39a of the bobbin 110 is the side surface of the pillar parts 216a to 216d in the direction from the first pillar part 216a to the fourth pillar part 216d ( 92d) may overlap.

The first corner 39a of the bobbin 110 may be a corner where the outer surface of the first side part 110b-1 of the bobbin 110 and the outer surface of the second side part 110b-2 of the bobbin 110 meet. there is.

For example, the first edge 39a of the bobbin 110 may be an edge where the first outer surface and the second outer surface of the bobbin 110 meet, and the first outer surface of the bobbin 110 includes pillar portions 216a to 216a. 216d) may be an outer surface facing the corresponding one, and the second outer surface of the bobbin 110 is in contact with the first outer surface and is directed from the first pillar part 216a to the fourth pillar part 216d. It may be an outer surface extending to .

In the initial position of the bobbin 110, the second edge 39b of the bobbin 110 is the first step of the base 210-2 in the direction from the first pillar part 216a to the fourth pillar part 216d. It may overlap with the portion 25a (or the first protrusion).

The second edge 39b of the bobbin 110 corresponds to the first side portion 110b-1 of the bobbin 110 and the side portions 218a and 218c of the base 210-2. It may be a corner where the side parts 110b-2 meet.

The dotted line PS shown in FIG. 19 indicates the position of the bobbin 110 when the bobbin 110 is rotated clockwise by a preset angle, for example, 2 degrees, based on the initial position of the bobbin 110 .

When the bobbin 110 is rotated clockwise by a predetermined angle, for example, 2 degrees, the second side portion 110b-2 of the bobbin 110 is in contact with the protruding portion 71a of the base 210-2, and the protruding portion By (71a), the bobbin 110 can be suppressed from further rotating in the clockwise direction.

For example, the protrusions 71a to 71d may prevent the bobbin 110 from rotating clockwise or counterclockwise beyond a predetermined angle based on the initial position of the bobbin 110 .

For example, the preset angle may be 2 degrees to 5 degrees. For example, the preset angle may be 2 degrees.

The second frame connection part 163 may include a bent part surrounding the three side surfaces of the first stopper 23, and the bent part may include a portion positioned between the first stopper 23 and the protruding parts 71a to 71d. The bent portion may be spaced apart from the first stopper 23 and the protruding portions 71a to 71d.

20 shows a perspective view of a base 210-3 according to another embodiment.

The base 210-3 of FIG. 20 is a modified example of the base 210-2 of FIG. 17A, and the height of the protrusion 72 relative to the upper surface of the body 213 of the base 210-3 is based on the base 210-3. 3) may be greater than the height of the protruding portion 25c, and may be equal to the height of the upper surfaces of the pillar portions 216a to 216d.

At the initial position of the bobbin 110, the protrusion 72 may overlap the coil 120 in a direction perpendicular to the optical axis direction.

21 is a perspective view of a base 210-4 according to another embodiment, and FIG. 22 is a plan view of the base 210-4 shown in FIG.

The base 210-4 shown in FIGS. 21 and 22 is another modified example of the base 210-2 of FIG. 17A, and the protrusion 73 of the base 210-4 is one of the pillar parts 216a to 216d. It may be disposed on any one side 92d, side 92e, and side 92c corresponding to each other. The protruding portion 73 may have a portion positioned on the second stepped portion 25b of the pillar portions.

For example, the protrusion 73 is a first part disposed on the side surface 92d of any one of the pillar parts 216a to 216d, a second part disposed on the side surface 92e, and a side surface 92c disposed A third part may be included.

The second part of the protrusion 73 may be bent from one end of the first part of the protrusion 73, and the third part of the protrusion 73 may be bent from the other end of the first part of the protrusion 73.

Also, for example, the horizontal length of the first portion of the protrusion 73 may be the same as the horizontal length of the side surface 92d of the pillar portions 216a to 216d.

The height of the protruding part 73 based on the upper surface of the body 213 of the base 210-4 may be greater than the height of the protruding part 25c of the base 210-4, and the height of the upper surface of the pillar parts 216a to 216d height may be lower than

Also, for example, the height of the protrusion 73 based on the upper surface of the body 213 of the base 210-4 may be greater than the height of the second protrusion 21 and the height of the first stopper 23.

At the initial position of the bobbin 110, the protrusion 73 may overlap the coil 120 in a direction perpendicular to the optical axis.

23 is a perspective view of a base 210-5 according to another embodiment.

The base 210-5 shown in FIG. 23 may be a modified example of the base 210-4 shown in FIG.

The base 210-5 includes an opening, a body including a first corner portion, a second corner portion, a third corner portion, and a fourth corner portion positioned around the opening, and a first pillar portion disposed in the first corner portion. (216a-1), the second pillar part 216b-1 disposed at the second corner part, the third pillar part 216c-1 disposed at the third corner part, and the fourth pillar part disposed at the fourth corner part 216d- 1. The description of the body of the base 210-2 may be applied to the body of the base 210-5.

At least one of the first to fourth pillar parts 216a-1 to 216d-1 is bent at one end of the first side surface 23a facing the first outer surface of the bobbin 110 and the first side surface 23a. A second side surface 23b may be included.

In addition, at least one pillar portion may further include a third side surface 23c bent at the other end of the first side surface 23a.

The second side surface 23b may extend in a direction parallel to or opposite to a direction from the first pillar part 216a-1 to the fourth pillar part 216d-1.

For example, the second side surface 23b may protrude from the side surface 92c of at least one pillar part. The side surfaces of the pillar part are the opposite sides of the first pillar part 216a-1 and the fourth pillar part 216d-1 and the second pillar part 216b-1 and the third pillar part 216c-1. It may be any one side of the sides facing each other.

The second side surface 23b of the at least one pillar portion may extend to face the second outer surface of the bobbin 110 .

The first outer surface of the bobbin 110 may be an outer surface of the bobbin 110 facing at least one pillar portion or an outer surface of the first side portion 110b-1 of the bobbin.

The second outer surface of the bobbin 110 is in contact with the first outer surface of the bobbin 110 and is parallel to the direction from the first pillar part 215a-1 to the fourth pillar part 216d-1. can

The length of the second side surface 23b in the horizontal direction may be smaller than the length of the first side surface 23a in the horizontal direction.

At the initial position of the bobbin 110, the first side surface 23a of the at least one pillar portion overlaps the coil 120 in a direction from the first corner portion 216a-1 to the second corner portion 216b-1. and may overlap with the coil 120 in a direction from the first core portion 216a-1 to the fourth corner portion 216d-1.

The outer surfaces of the pillar parts 216a to 216d of the bases 210-2 to 210-5 and the outer surfaces of the side parts 218a to 218d of the body 213 and the inner surface of the side plate of the cover member 300 are bonded. The members may be adhered or fixed to each other by, for example, UV bonding.

Guide grooves for easily and uniformly applying the adhesive member to the outer surfaces of the pillar parts 216a to 216d of the bases 210-2 to 210-5 and the outer surfaces of the side parts 218a to 218d of the body 213 (61) can be provided.

The guide groove 61 may include a first guide groove 61a extending in the horizontal direction and a second guide groove 61b extending in the vertical direction, and the first guide groove 61a and the second guide groove ( 61b) may contact each other and may have a stripe shape.

For example, the first guide groove 61a may include two or more straight grooves spaced apart from each other and parallel to each other.

For example, the second guide groove 61b may include two or more straight grooves spaced apart from each other and parallel to each other.

At least one of the first guide groove 61a and the second guide groove 61b may contact the adhesive injection groove 47b. The adhesive member injected into the adhesive injection groove 47b can be smoothly moved to the side parts 218a and 210c of the body 213 of the bases 210-2 to 210-5 through the grooves 41a and 41b, and As a result, adhesion between the first and second magnets 130-1 and 130-2 and the bases 210-2 to 210-5 may be improved.

In addition, the adhesive member injected into the adhesive injection groove 47b can be smoothly moved to the outer surfaces of the bases 210-2 to 210-5 through the guide groove 61, and thus the bases 210-2 to 210 -5) Adhesion between the cover member 300 and the cover member 300 may be improved.

The first protrusion, which is an expression corresponding to the first stepped portion 25a in FIGS. 1 to 23, may be expressed in terms of protrusion in that it protrudes from the upper surface of the body 213, and the second stepped portion ( The second protrusion corresponding to 25b) is expressed as a term “protrusion” in that it protrudes with respect to the side surface 92a of the pillar portion, but the embodiment is not limited thereto. That is, it may be expressed as a groove instead of the expression “protrusion”. For example, first grooves may be provided on the upper surface of the body 213 between the first pillar part 216a and the second pillar part 216b and between the third pillar part 216c and the fourth pillar part 216d. and second grooves are provided on the side surfaces of the pillar parts 216a to 216d facing the first and second magnets 130-1 and 130-2.

24 shows an exploded perspective view of the camera module 200 according to the embodiment.

Referring to FIG. 24 , 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.

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 below 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 . 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 is 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 provided with various circuits, elements, and controllers to convert an image formed by the image sensor 810 into an electrical signal and transmit the electrical signal 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 can 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 first coil 120 of the lens driving apparatus 100 and may provide a driving signal to the first coil 120 .

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

25 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 26 is a configuration diagram of the portable terminal 200A shown in FIG. 25 .

25 and 26, a portable terminal (200A, hereinafter referred to as a “terminal”) includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, an input/output unit, 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. 25 has a bar shape, but is not limited thereto, and is a slide type, folder type, or swing type in which two or more sub-bodies are coupled to be relatively movable. , and may have various structures such as a swivel type.

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 reception module 711, a mobile communication module 712, a wireless Internet module 713, a short-distance communication module 714, and a location information module 715. there is.

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. 24 .

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, whether or not there is a user contact, the direction of the terminal 200A, and the acceleration/deceleration of the terminal 200A. By sensing, a sensing signal for controlling the operation of the terminal 200A may be generated. 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. For example, the display module 751 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a 3D At least one of 3D displays may be included.

The audio output module 752 outputs audio data received from the wireless communication unit 710 in a call signal reception mode, 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 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 store input/output data (eg, phone book, messages, audio, still images, photos, videos, 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 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. For example, the interface unit 770 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port connecting a device having an identification module, an audio I/O (Input/ Output) port, video I/O (Input/Output) port, and earphone port.

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 multimedia module 781 may be implemented within the control unit 780 or may be implemented separately from the control unit 780.

The controller 780 may perform a pattern recognition process capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

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)

a base including a first pillar part, a second pillar part, a third pillar part, and a fourth pillar part;
bobbins disposed inside the first to fourth pillar parts;
a magnet including a first magnet disposed between the first pillar part and the second pillar part and a second magnet disposed between the third pillar part and the fourth pillar part;
a coil disposed on the bobbin; and
And a lower elastic member coupled to the lower part of the bobbin and the base,
The lower elastic member includes a first portion coupled to a first region of the base positioned between the first pillar part and the fourth pillar part,
The lens driving device of claim 1 , wherein the first portion of the lower elastic member does not overlap with the magnet in a direction parallel to an optical axis. According to claim 1,
The lower elastic member includes a second portion coupled to a second region of the base positioned between the second and third pillar portions,
The second portion of the lower elastic member does not overlap with the magnet in a direction parallel to the optical axis. According to claim 1,
The lower elastic member is not engaged with an area of the base positioned between the first pillar part and the second pillar part and between the third pillar part and the fourth pillar part. According to claim 1,
The lens driving device of claim 1 , wherein the magnet is not disposed between the first pillar part and the third pillar part and between the second pillar part and the fourth pillar part. According to claim 1,
The base is
a body disposed under the first to fourth pillar parts; and
A first protruding portion located between the first pillar portion and the fourth pillar portion and protruding from the body;
The first portion of the lower elastic member engages with the first protruding portion. According to claim 5,
The base includes a second protrusion protruding from the first protrusion,
The lens driving device of claim 1 , wherein the first portion of the lower elastic member is engaged with the second protrusion. According to claim 1,
The lower elastic member includes a first lower spring and a second lower spring spaced apart from each other,
Each of the first and second lower springs includes a lens including an inner frame coupled to the lower portion of the bobbin, an outer frame coupled to the first region of the base, and a connection portion connecting the inner frame and the outer frame. drive. According to claim 1,
A lens driving device including an upper elastic member coupled to an upper part of the bobbin and the first to fourth pillar parts. According to claim 7,
The coil is electrically connected to the first and second lower springs. According to claim 9,
One end of the coil is coupled to the inner frame of the first lower spring,
The other end of the coil is coupled to the inner frame of the second lower spring. According to claim 7,
The base includes a body disposed under the first to fourth pillar parts,
Each of the first lower spring and the second lower spring,
A lens driving device comprising a contact terminal connected to the outer frame and extending to an outer surface of the body positioned below the first region of the base. According to claim 1,
The bobbin is movable in the optical axis direction by the interaction between the coil and the magnet,
The coil is a lens driving device having a ring shape surrounding the outer circumferential surface of the bobbin. According to claim 1,
The lower elastic member is positioned between the first magnet and the second magnet and is spaced apart from the magnet. According to claim 1,
One end of the first magnet is coupled to the first pillar part and the other end of the first magnet is coupled to the second pillar part;
One end of the second magnet is coupled to the third pillar part and the other end of the second magnet is coupled to the fourth pillar part. According to claim 2,
The base is
a body disposed under the first to fourth pillar parts;
a first protrusion protruding from the body and located between the first pillar part and the fourth pillar part; and
A second protruding portion located between the second pillar portion and the third pillar portion and protruding from the body;
The first portion of the lower elastic member is engaged with the first protrusion,
The second portion of the lower elastic member is engaged with the second protruding portion. According to claim 15,
The base includes a second protrusion,
The second protrusion is disposed on the first protrusion and engages with the first portion of the lower elastic member, and the 2-1 protrusion is disposed on the second protrusion and engages with the second portion of the lower elastic member. 2-2 lens drive unit including protrusions According to claim 1,
The base is
a body disposed under the first to fourth pillar parts;
a first step portion having a step difference from an outer surface of the body and positioned between the first pillar portion and the second pillar portion;
a second stepped portion having a step difference from outer surfaces of each of the first and second pillar portions;
a third step portion having a step difference from an outer surface of the body and positioned between the third pillar portion and the fourth pillar portion; and
A fourth step portion having a step difference from outer surfaces of each of the third pillar portion and the fourth pillar portion,
The first magnet is disposed on the first step portion and the second step portion,
The second magnet is disposed on the third step portion and the fourth step portion. a base including a first pillar part, a second pillar part, a third pillar part, and a fourth pillar part;
bobbins disposed inside the first to fourth pillar parts;
a coil disposed on the bobbin;
A first magnet disposed in the first region of the base between the first pillar part and the second pillar part and a second magnet disposed in the second region of the base between the third pillar part and the fourth pillar part. A magnet including a magnet; and
And a lower elastic member coupled to the lower part of the bobbin and the base,
The lower elastic member includes an inner frame coupled to the lower portion of the bobbin, an outer frame coupled to the base, and a connecting portion connecting the inner frame and the outer frame,
The outer frame includes a first portion engaging the first region of the base and a second portion engaging the second region of the base;
The first part and the second part of the outer frame are spaced apart from the magnet and do not overlap with the magnet in a direction parallel to an optical axis. According to claim 18,
The base includes a second protrusion,
The second projection is disposed on the first region of the base and coupled to the first portion of the outer frame, and the 2-1 projection is disposed on the second region of the base and engages with the first portion of the outer frame. A lens driving device including a 2-2 protrusion coupled with. Base;
a bobbin disposed on the base;
a magnet coupled to the base;
a coil disposed on the bobbin; and
A lens driving device including an upper elastic member coupled to the bobbin and the base.

Images