KR20230019478A - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

An embodiment comprises: a housing; a bobbin arranged inside the housing; a first coil arranged on the bobbin; a first magnet arranged in the housing; a first circuit board arranged on a side of the housing and including a first to a sixth pad; a first position sensor arranged on the first circuit board and connected to the first to the sixth pad; an upper elastic member combined with an upper part of the housing and connected to the first to the fourth pad; and a lower elastic member combined with a lower part of the housing and connected to the fifth and the sixth pad, wherein the first coil is electrically connected to the lower elastic member, the first to the fourth pad are placed higher than the first position sensor, and the fifth and the sixth pad are placed lower than the first position sensor. Therefore, provided are a lens driving device, a camera module and an optical instrument including the same, wherein the interference of a magnetic field can be reduced, the size thereof can be reduced, electricity consumption can be reduced, and the sensitivity of OIS operation can be improved.

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).

Embodiments provide a lens driving device capable of reducing magnetic field interference, reducing size, reducing current consumption, and improving sensitivity of OIS driving, and a camera module and optical device including the same.

A lens driving device according to an embodiment includes a housing; a bobbin disposed within the housing; a first coil disposed on the bobbin; a first magnet disposed in the housing; a first circuit board disposed on a side of the housing and including first to sixth pads; a first position sensor disposed on the first circuit board and connected to the first to sixth pads; an upper elastic member coupled to an upper portion of the housing and connected to the first to fourth pads; and a lower elastic member coupled to a lower portion of the housing and connected to the fifth and sixth pads, wherein the first coil is electrically connected to the lower elastic member, and the first to fourth pads are electrically connected to the lower elastic member. It is positioned higher than the first position sensor and the fifth and sixth pads are positioned lower than the first position sensor.

The upper elastic member may include first to fourth upper springs, and each of the first to fourth upper springs may be coupled to a corresponding one of the first to fourth pads of the first circuit board. there is.

The lower elastic member may include a first lower spring coupled to one end of the first coil and a second lower spring coupled to the other end of the first coil.

The housing may include first to fourth side parts and first to fourth corner parts, and the first to fourth upper springs may be disposed on the first to fourth corner parts of the housing.

The lens driving device includes a second circuit board disposed under the lower elastic member; and first to fourth support members electrically connecting the upper elastic member and the second circuit board, wherein each of the first to fourth support members is one of the first to fourth corners of the housing. It can be placed in any corresponding one.

The first magnet may include first to fourth magnet units, and each of the first to fourth magnet units may be disposed at a corresponding one of the first to fourth corners of the housing.

The housing may include a first groove and a second groove, the first circuit board may be disposed in the first groove of the housing, and the first position sensor may be disposed in the second groove of the housing.

The first position sensor transmits signals for data communication to the first circuit board through the first to fourth pads of the first circuit board or receives signals for data communication from the first circuit board. can

The lens driving device may include a second magnet disposed on the bobbin to correspond to the first position sensor; and a second coil disposed on the second circuit board to correspond to the first magnet. The first and second pads may supply a power signal, the third pad may supply a clock signal, and the fourth pad may supply a data signal.

The first position sensor may be disposed on a first surface of the first circuit board facing the bobbin, and the first to fourth pads may be disposed on a second surface of the circuit board opposite to the first surface. can

One end of the first upper spring extends from the first corner portion to the first side portion and is coupled to the first pad, and one end of the second upper spring extends from the second corner portion to the first side portion, coupled with the second pad, one end of the third upper spring extending from the third corner portion to the first side portion and coupled with the third pad, and one end of the fourth upper spring portion extending from the third corner portion to the first side portion; may extend to the first side and be coupled with the fourth pad.

The fifth pad may be coupled to the first lower spring by solder or conductive adhesive, and the sixth pad may be coupled to the second lower spring by solder or conductive adhesive.

A lens driving device according to another embodiment includes a housing; a bobbin disposed within the housing; a first coil disposed on the bobbin; a first magnet disposed in the housing; a first circuit board disposed on a side of the housing and including first to sixth pads; a first position sensor disposed on the first circuit board and electrically connected to the first to sixth pads; an upper elastic member coupled to an upper portion of the housing and connected to the first to fourth pads; and a lower elastic member coupled to a lower portion of the housing and connected to the fifth and sixth pads, the upper elastic member including first to fourth upper springs, and the first to fourth upper springs. Each of the pads is coupled to a corresponding one of the first to fourth pads, the first circuit board includes an upper end and a lower end disposed under the upper end, and a side surface of the upper end is based on a side surface of the lower end. protrudes, the first to fourth pads are disposed on the upper portion, and the fifth and sixth pads are disposed on the lower portion.

A horizontal length of the upper end may be greater than a horizontal length of the lower end.

The first pad is disposed on one end of the upper end, the second pad is disposed on the other end of the upper end, the third and fourth pads are disposed between the first and second pads, First and second pads may be used to supply a power signal, the third pad may be used to supply a clock signal, and the fourth pad may be used to supply a data signal.

The first position sensor may be disposed on a first surface of the first circuit board, and the first to fourth pads may be disposed on a second surface of the circuit board opposite to the first surface.

The lower elastic member may include a first lower spring connected to one end of the first coil and a second lower spring connected to the other end of the first coil. The first position sensor may supply a driving signal to the first coil.

The embodiment can reduce magnetic field interference, reduce size, reduce current consumption, and improve sensitivity of OIS driving.

1 shows an exploded perspective view of a lens driving device according to an embodiment.
FIG. 2 is a combined perspective view of the lens driving device excluding the cover member of FIG. 1 .
FIG. 3 is a perspective view of a bobbin, a first coil, a second magnet, and a third magnet shown in FIG. 1;
FIG. 4 is an exploded perspective view of a housing, a first magnet, a circuit board, and a first position sensor shown in FIG. 1 .
FIG. 5 shows a combined perspective view of a housing, a first magnet, a circuit board, and a first position sensor shown in FIG. 4 .
FIG. 6 is a cross-sectional view of the lens driving device shown in FIG. 2 taken in an AB direction.
FIG. 7 is a cross-sectional view of the lens driving device shown in FIG. 2 taken in a CD direction.
FIG. 8 shows an enlarged view of the circuit board and first position sensor shown in FIG. 4 .
FIG. 9 shows an embodiment of the first position sensor shown in FIG. 8 .
Figure 10 shows a plan view of the upper elastic member shown in Figure 1;
Figure 11 shows a plan view of the lower elastic member shown in Figure 1;
FIG. 12 is a perspective view illustrating a combination of an upper elastic member, a lower elastic member, a base, a support member, a second coil, and a circuit board shown in FIG. 1;
FIG. 13 is an exploded perspective view of the second coil, the circuit board, the base, and the second position sensor shown in FIG. 1 .
FIG. 14 is a bottom perspective view of a housing, first magnets, a lower elastic member, and a circuit board shown in FIG. 1;
15 shows the arrangement of the first magnets, the second and third magnets, the first position sensor and the circuit board.
16A is a conceptual diagram illustrating a connection relationship between a first outer frame of first to sixth upper springs, a first coil, and a circuit board according to another embodiment.
16B is a conceptual diagram illustrating a connection relationship between a first outer frame of first to sixth upper springs, a first coil, and a circuit board according to another embodiment.
17 is an exploded perspective view of a camera module according to an embodiment.
18 is a perspective view of a portable terminal according to an embodiment.
FIG. 19 shows a configuration diagram of the portable terminal shown in FIG. 18 .

Hereinafter, embodiments will be clearly revealed through the accompanying drawings and description of the embodiments. In the description of the embodiment, each layer (film), region, pattern or structure is “on” or “under” the substrate, each layer (film), region, pad or pattern. In the case where it is described as being formed in, "up / on" and "under / under" include both "directly" or "indirectly" formed through another layer. do. In addition, the criterion for the upper/upper or lower/lower of each layer will be described based on the drawings.

In the drawings, sizes are exaggerated, omitted, or schematically illustrated for convenience and clarity of explanation. Also, the size of each component does not fully reflect the actual size. Also, like reference numerals denote like elements throughout the description of the drawings.

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

A lens driving device according to an embodiment may perform an 'auto focusing function'. Here, the auto-focusing function refers to automatically focusing an image of a subject on the image sensor surface.

Also, the lens driving device according to the embodiment may perform 'hand shake correction function'. Here, the hand shake correction function refers to preventing the outline of a captured image from being clearly formed due to vibration caused by a user's hand shake when capturing a still image.

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

1 and 2, the lens driving device 100 includes a bobbin (bobbin, 110), a first coil 120, a first magnet (magnet, 130), a housing 140, an upper elastic member 150 , a lower elastic member 160, a first position sensor 170, and a second magnet 180.

In addition, in order to perform the hand shake correction function, the lens driving device 100 may include a support member 220, a second coil 230, and a second position sensor 240.

In addition, the lens driving device 100 may further include a third magnet 185 , a circuit board 190 , a base 210 , a circuit board 250 , and a cover member 300 .

The cover member 300 includes a bobbin 110, a first coil 120, a first magnet 130, a housing 140, and an upper elastic member 150 in an accommodation space formed together with the base 210. ), lower elastic member 160, first position sensor 170, second magnet 180, circuit board 190, support member 220, second coil 230, second position sensor 240 , and accommodates the circuit board 250 .

The cover member 300 may have a box shape with an open lower portion and include a top plate and side plates, and a lower portion 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 in the upper plate through which a lens (not shown) coupled to the bobbin 110 is exposed to external light. The material of the cover member 300 may be a non-magnetic material such as SUS in order to prevent sticking to the first magnet 130, but it is formed of a magnetic material so that the electromagnetic force between the first coil 120 and the first magnet 130 It can also function as a yoke that improves

Next, the bobbin 110 will be described.

The bobbin 110 is disposed inside the housing 140, and the optical axis OA direction or the first direction (eg, the Z-axis direction) by electromagnetic interaction between the first coil 120 and the first magnet 130 ) can be moved.

3 is a perspective view of the bobbin 110, the first coil 120, the second magnet 180, and the third magnet 185 shown in FIG.

Referring to FIG. 3 , the bobbin 110 may have an opening for mounting a lens or a lens barrel. For example, the shape of the opening of the bobbin 110 may be circular, elliptical, or polygonal, but is not limited thereto.

A lens may be directly mounted in the opening of the bobbin 110, but is not limited thereto, and in another embodiment, a lens barrel for mounting or coupling at least one lens may be coupled or mounted in the opening of the bobbin 110. there is. The lens or lens barrel may be coupled to the inner circumferential surface 110a of the bobbin 110 in various ways.

The bobbin 110 may include first side parts 110b-1 spaced apart from each other and second side parts 110b-2 spaced apart from each other, and each of the second side parts 110b-2 is adjacent to 2 The first side parts of the dog may be connected to each other. For example, the horizontal or transverse length of each of the first side parts 110b-1 of the bobbin 110 may be greater than the horizontal or transverse length of each of the second side parts 110b-2.

A guide part 111 for guiding the installation position of the upper elastic member 150 may be provided on the upper surface of the bobbin 110 . For example, as illustrated in Figure 3, the guide portion 111 of the bobbin 110 is a first direction from the upper surface to guide the path through which the frame connection portion 153 of the upper elastic member 150 passes (eg, Z-axis direction).

In addition, the outer surface of the bobbin 110 may include a protrusion 112 protruding in the second and/or third directions. The inner frame 151 of the upper elastic member 150 may be seated on the upper surface 112a of the protrusion 112 of the bobbin 110 .

When the bobbin 110 moves in the optical axis direction for auto focusing, even if the bobbin 110 moves beyond a prescribed range due to external impact, the protrusion 112 of the bobbin 110 maintains the housing 140 ) can play a role in preventing direct collision.

The protruding part 115 of the bobbin 110 corresponds to the groove part 25a of the housing 140, and may be inserted or disposed in the groove part 25a of the housing 140, and the bobbin 110 is constant around the optical axis. Rotation beyond the range can be suppressed or prevented.

The bobbin 110 may include a first stopper 116 protruding from an upper surface. When the bobbin 110 moves in the first direction for the auto-focusing function, even if the bobbin 110 moves beyond a prescribed range due to an external impact, the stopper 116 keeps the upper surface of the bobbin 110 from covering the cover member 300. ) can play a role in preventing direct collision with the inside of the top plate.

The bobbin 110 may include a second stopper (not shown) protruding from the lower surface, and the second stopper of the bobbin is the bobbin caused by an external impact when the bobbin 110 moves in the first direction for the auto focusing function. Even if the 110 moves beyond the prescribed range, it is possible to prevent the lower surface of the bobbin 110 from directly colliding with the base 210, the second coil 230, or the circuit board 250.

The bobbin 110 may include a first coupling part 113 for coupling and fixing to the upper elastic member 150 . For example, in FIG. 3 , the first coupling portion 113 has a protruding shape, but is not limited thereto, and in another embodiment, the first coupling portion 113 of the bobbin 110 may have a groove or a flat shape. In addition, the bobbin 110 may include a second coupling portion (not shown) for coupling and fixing to the lower elastic member 160, and the second coupling portion of the bobbin 110 may have a protrusion, a groove, or a flat shape. there is.

A seating groove for a coil in which the first coil 120 is seated, inserted, or disposed may be provided on an outer circumferential surface of the bobbin 110 . The seating groove for the coil may be a groove structure recessed from the outer surface 110b of the first and second side parts 110b-1 and 110b-2 of the bobbin 110, and the shape and shape of the first coil 120 It may have a conforming shape, a closed curve shape (eg, a ring shape).

The bobbin 110 may have a seating groove 180a for the second magnet on an outer surface in which the second magnet 180 is seated, inserted, fixed, or disposed.

The seating groove 180a for the second magnet of the bobbin 110 may have a structure recessed from the outer surface of the bobbin 110 and may have an opening open to the upper surface of the bobbin 110, but is not limited thereto. no.

The second magnet seating groove 180a of the bobbin 110 may be located above the coil seating groove on which the first coil 120 is disposed, and may be spaced apart from the coil seating groove, but is not limited thereto. no.

In addition, the bobbin 110 may have a third magnet seating groove 185a on an upper surface in which the third magnet 185 is seated, inserted, fixed, or disposed.

The third seating groove 185a for the magnet may have a structure recessed from the outer circumferential surface 110b of the bobbin 110 and may have an opening open to the upper surface of the bobbin 110, but is not limited thereto.

The third magnet seating groove 185a of the bobbin 110 may be located above the coil seating groove on which the first coil 120 is disposed, and may be spaced apart from the coil seating groove, but is not limited thereto. no.

The second seating groove 180a for the magnet may be provided on any one of the second side parts 110b-2 of the bobbin 110, and the third seating groove 185a for the magnet is the second side portion 110b-2 of the bobbin 110. It may be provided on any other of the side parts 110b-2.

The seating groove 185a for the third magnet may be disposed to face the seating groove 180a for the second magnet. For example, the seating grooves 180a and 185a for the second and third magnets may be provided on two second side parts of the bobbin 110 facing each other.

By arranging or aligning the second magnet 180 and the third magnet 185 on the bobbin 110 so as to face each other with respect to the first position sensor 170, the second magnet 180 and the third magnet 185 It is possible to balance the weight, thereby improving the accuracy of AF (Auto Focusing) operation.

The first coil 120 is disposed on the outer surface of the bobbin 110 .

The first coil 120 may be disposed below the second and third magnets 180 and 180, but is not limited thereto. For example, the first coil 120 may not overlap the second and third magnets 180 and 185 in the second or third direction, but is not limited thereto.

For example, the first coil 130 may be disposed in the seating groove for coils, the second magnet 180 may be inserted or placed in the seating groove 180a for second magnets, and the third magnet 185 may be It may be inserted or disposed in the third magnet seating groove 185a.

Each of the second magnet 180 and the third magnet 185 disposed on the bobbin 110 may be spaced apart from the first coil 120 in the direction of the optical axis OA, but is not limited thereto. In , each of the second magnet 180 and the third magnet 185 disposed on the bobbin 110 contacts the first coil 120 or overlaps the first coil 120 in the second or third direction. It could be.

The first coil 120 may wrap the outer surface of the bobbin 110 in a rotational direction about the optical axis OA.

The first coil 120 may be directly wound on the outer surface of the bobbin 110, but is not limited thereto. According to another embodiment, the first coil 120 is wound on the bobbin 110 using a coil ring. It may be wound or provided as an angular ring-shaped coil block.

The first coil 120 may form electromagnetic force through electromagnetic interaction with the first magnet 130 when a driving signal (eg, driving current) is supplied, and the bobbin ( 110) can be moved.

At the initial position of the AF movable unit, the bobbin 110 may be moved in an upward or downward direction, which is referred to as bi-directional driving of the AF movable unit. Alternatively, in the initial position of the AF movable unit, the bobbin 110 may be moved upward, which is referred to as unidirectional driving of the AF movable unit.

At the initial position of the AF movable unit, the first coil 120 may correspond to the first magnet 130 disposed on the housing 140 or may be aligned or overlapped in a direction perpendicular to the optical axis OA.

For example, the AF movable unit may include a bobbin 110 and elements coupled to the bobbin 110 (eg, the first coil 120, the second and third magnets 180 and 185), and AF. The initial position of the movable part is the initial position of the AF movable part in a state in which power is not applied to the first coil 1120, or the upper and lower elastic members 150 and 160 are elastically deformed only by the weight of the AF movable part. may be a location.

In addition, the initial position of the bobbin 110 is the 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. can be

The second magnet 180 is disposed in the seating groove 180a for the second magnet of the bobbin 110, and a part of either side of the second magnet 180 facing the first position sensor 170 is the second magnet 180. It may be exposed from the seating groove 180a for the magnet, but is not limited thereto.

For example, in each of the second and third magnets 180 and 185 disposed on the bobbin 110, the boundary surface between the N pole and the S pole may be parallel to a direction perpendicular to the optical axis OA. For example, the first position sensor Each surface of the second and third magnets 180 and 185 facing 170 may be divided into an N pole and an S pole, but is not limited thereto.

For example, in another embodiment, the interface between the N pole and the S pole of each of the second and third magnets 180 and 185 disposed on the bobbin 110 may be parallel to the optical axis OA.

For example, each of the second and third magnets 180 and 185 may be a unipolarly magnetized magnet or a bipolarly magnetized magnet.

The second magnet 180 may move in the optical axis direction together with the bobbin 110, and the first position sensor 170 may detect the strength of the magnetic field of the second magnet 180 moving in the optical axis direction. Since the strength of the magnetic field detected by the first position sensor 170 changes according to the displacement of the bobbin 110 in the optical axis direction, the bobbin 110 is moved based on the strength of the magnetic field detected by the first position sensor 170. A displacement of in the optical axis direction can be sensed.

Next, the housing 140 will be described.

The housing 140 accommodates the bobbin 110 inside and supports the circuit board 190 on which the first magnet 130 and the first position sensor 170 are disposed.

The housing 140 may have a hollow column shape as a whole. For example, the housing 140 may have a polygonal (eg, square or octagonal) or circular opening.

4 is an exploded perspective view of the housing 140, the first magnet 130, the circuit board 190, and the first position sensor 170 shown in FIG. 1, and FIG. 5 is the housing shown in FIG. 4 ( 140), a combined perspective view of the first magnet 130, the circuit board 190, and the first position sensor.

4 to 5 , the housing 140 may include a plurality of side parts 141-1 to 141-4 and corner parts 142-1 to 142-4.

For example, the housing 140 may include first to fourth side parts 141-1 to 141-4 and first to fourth corner parts 142-1 to 142-4 spaced apart from each other. there is.

Each of the corner portions 142-1 to 142-4 of the housing 140 has two adjacent side portions 141-1 and 141-2, 141-2 and 141-3, 141-3 and 141-4, and 141 -4 and 141-1 may be disposed or positioned between, and the side parts 141-1 to 141-4 may be connected to each other.

For example, the corner portions 142 - 1 to 142 - 4 may be located at corners or corners of the housing 140 .

For example, the number of side parts of the housing 140 is four, and the number of corner parts is four, but is not limited thereto.

The horizontal length of each of the side parts 141-1 to 141-4 of the housing 140 may be greater than the horizontal length of each of the corner parts 142-1 to 142-4, but is not limited thereto. .

For example, the side parts 141-1 to 141-4 of the housing 140 may correspond to the first side parts 110b-1 of the bobbin 110, and the corner parts 142-1 to 142-1 of the housing 140. 142-4 may correspond to the second side parts 110b-2 of the bobbin 110.

The first magnet 130 may be disposed or installed in the corner portions 142-1 to 142-4 of the housing 140.

Support members 220-1 to 220-4 may be disposed at corner portions 142-1 to 142-4 of the housing 140.

When the bobbin 110 moves in the direction of the optical axis OA, in order to avoid interference with the protrusion 112 of the bobbin 110, the housing 140 is seated at a position corresponding to the protrusion 112 of the bobbin 110. A groove 146 may be provided.

The housing 140 includes a seating portion 141a for accommodating the first magnet 130, a mounting groove 14a for accommodating the circuit board 190, and a mounting groove for accommodating the first position sensor 170. (14b) may be provided.

The seating portion 141a of the housing 140 may be provided at the lower end of at least one of the corner portions 142-1 to 142-4 of the housing 140.

For example, the seating portion 141a of the housing 140 may be provided inside the lower end of each of the four corner portions 142-1 to 142-4. Each of the first magnets 130 - 1 to 130 - 4 may be inserted into and fixed to a corresponding one of the seating parts 141a of the housing 140 .

The first magnet seating portion 141a of the housing 140 may be formed as a concave groove corresponding to the size of the first magnet 130, but is not limited thereto.

For injecting adhesive for attaching the first magnets 130-1 to 130-4 to the seating portion 141a of the housing 140 to the side portions 141-1 to 141-4 of the housing 140. A groove 61 may be provided. For example, the groove 61 of the housing 140 may be a through hole and may be connected to the seating portion 141a of the housing 140 .

For example, an opening may be formed in the bottom surface of the seating portion 141a of the housing 140 facing the second coil 240, and the seating portion 141a of the housing 140 facing the first coil 120. ) An opening may be formed on the side of the.

For example, the bottom surface of the first magnet 130 fixed to the seating portion 141a of the housing 140 may face the second coil 230 in the optical axis direction.

The mounting groove 14a of the housing 140 may be provided on the top or top of any one (eg, 141-1) of the side parts 141-1 to 141-4 of the housing 140.

In order to facilitate the mounting of the circuit board 190, the mounting groove 14a of the housing 140 may have a groove shape with an open top, side surfaces and a bottom, and an opening that opens to the inside of the housing 140. can have The shape of the mounting groove 14a of the housing 140 may correspond to or match the shape of the circuit board 190 .

The mounting groove 14b of the housing 140 is provided on the inner surface of the first side portion 141-1 of the housing 140 and may be connected to the mounting groove 14a.

In addition, in order to facilitate the mounting of the first position sensor 170, the mounting groove 14b of the housing 140 may have an open top, and to increase sensing sensitivity, the first side portion 141-1 of the housing 140 ) may have an opening that opens to the inner surface of the The mounting groove 14b of the housing 140 may have a shape corresponding to or matching the shape of the first position sensor 170 .

The first magnet 130 may be fixed to the mounting portion 141a of the housing 140 by the adhesive member, and the circuit board 190 may be fixed to the mounting groove 14a of the housing 140 by the adhesive member. there is. For example, the adhesive member may be epoxy or double-sided tape, but is not limited thereto.

Each of the side parts 141 - 1 to 141 - 4 of the housing 140 may be disposed parallel to a corresponding one of the side plates of the cover member 300 .

Each of the corner portions 142-1 to 142-4 of the housing 140 may have a hole 147 forming a path through which the support members 220-1 to 220-4 pass. For example, the housing 140 may include a hole 147 penetrating upper portions of the corner portions 142-1 to 142-4.

In another embodiment, the holes provided in the corner portions 142-1 to 142-4 of the housing 140 may be recessed from the outer surface of the corner portion of the housing 140, and at least a portion of the hole is formed on the outer surface of the corner portion. can be opened with

The number of holes 147 of the housing 140 may be the same as the number of support members. One end of the support member 220 may be connected or bonded to the upper elastic member 150 through the hole 147 .

For example, in order to easily apply the damper, the diameter of the hole 147a may gradually increase from the upper surface to the lower surface of the housing 140, but is not limited thereto, and in other embodiments, the hole 147a has a diameter may be constant.

In addition, in order to prevent direct collision with the inner surface of the upper plate of the cover member 300 shown in FIG. 1, the housing 140 may be provided with a stopper 145 on the upper, upper, or upper surface.

For example, a stopper 145 may be provided on an upper surface of each of the corner portions 142-1 to 142-4 of the housing 140.

For example, the hole 147 of the housing 140 may be located between the top edge of the corner parts 142-1 to 142-4 of the housing 140 and the stopper 145.

In addition, guide projections 144 may be provided at the corners of the corner portions 142-1 to 142-4 of the housing 140 to prevent the damper from overflowing.

The housing 140 may include at least one first coupling portion 143 (Q1 to Q4) coupled to the outer frame 152 of the upper elastic member 150.

For example, the first coupling parts 143 (Q1 to Q4) may have a protruding shape, but are not limited thereto, and may have a groove or a flat shape in another embodiment.

The first coupling parts 143 and Q1 to Q4 of the housing 140 may be disposed on at least one of the side parts 141-1 to 141-4 or corner parts 142-1 to 142-4 of the housing 140. can

For example, the first coupling portion 143 of the housing 140 may be disposed on the side portions 141-1 to 141-4 of the housing 140, and the first coupling portion Q1 to Q4 of the housing 140 ) may be disposed on the corner portions 142-1 to 142-4 of the housing 140.

The housing 140 may have a second coupling part 149 coupled to and fixed to the outer frame 162 of the lower elastic member 160 on its lower surface. For example, the second coupling portion 149 of the housing 140 may have a protruding shape, but is not limited thereto, and may have a groove or flat shape in another embodiment.

In order to form a path through which the support member 220 passes, as well as to secure a space for filling a damping member (eg, gel-type silicone), the housing 140 has corner portions 142-1 to 142-4 It may be provided with a groove (142a) formed at the bottom or bottom of. That is, a damping member, for example, silicon, may be filled in the recess 142a of the housing 140 to mitigate the vibration of the support member 220 .

The housing 140 may include at least one stopper (not shown) protruding from the outer surface of the side parts 141-1 to 141-4, and the at least one stopper is provided so that the housing 140 is second and/or Alternatively, collision with the cover member 300 may be prevented when moving in the third direction.

In order to prevent the lower surface of the housing 140 from colliding with the base 210 and/or the circuit board 250, the housing 140 may further include a stopper (not shown) protruding from the lower surface.

At the initial position of the AF movable unit, the first magnets 130-1 to 130-4 may be disposed on the housing 140 such that at least a portion of the first magnets 130-1 to 130-4 overlap the first coil 120 in a direction perpendicular to the optical axis OA. .

For example, each of the first magnets 130-1 to 130-4 may be inserted or disposed in a corresponding seating portion 141a of the corner portions 141-1 to 141-4 of the housing 140. there is.

In another embodiment, the first magnets 130-1 to 130-4 may be disposed on outer surfaces of the corner portions 141-1 to 141-4 of the housing 140.

Each of the first magnets 130 - 1 to 130 - 4 may have a polyhedron shape that is easily seated at corner portions of the housing 140 .

For example, the area of the first surface 11a of each of the first magnets 130-1 to 130-4 may be larger than the area of the second surface 11b. The first surface 11a of each of the first magnets 130-1 to 130-4 may be a surface facing either surface of the first coil 120 (or an outer surface of the bobbin 110), The second surface 11b may be the opposite surface of the first surface 11a.

For example, the horizontal length of the second surface 11b of the first magnets 130-1 to 130-4 may be smaller than the horizontal length of the first surface 11a.

For example, the horizontal direction of the first surface 11a is a direction perpendicular to the direction from the lower surface to the upper surface of the magnets 130-1 to 130-4 on the first surface 11a, or the optical axis on the first surface 11a. It may be a direction perpendicular to the direction.

For example, the horizontal direction of the 2b surface 11b is a direction perpendicular to the direction from the lower surface to the upper surface of the magnets 130-1 to 130-4 on the second surface 11b, or the optical axis on the second surface 11b. It may be a direction perpendicular to the direction.

For example, the first to fourth magnets 130-1 go in a direction from the center of the housing 140 toward the corners 142-1, 142-2, 142-3, or 142-4 of the housing 140. to 130-4) the length of each horizontal direction may gradually decrease.

For example, the horizontal length of each of the first magnets 130-1 to 130-4 may decrease from the first surface 11a to the second surface 11b.

Here, the horizontal direction is the horizontal direction (or horizontal direction) of the first surface 11a of the magnets 130-1 to 130-4 perpendicular to the direction from the upper surface to the lower surface of the magnets 130-1 to 130-4. can

Each of the first magnets 130-1 to 130-4 may be composed of one body, and the first surface 11a facing the first coil 120 is the S pole and the second surface 11b is the N pole. It can be arranged so that it becomes a pole. However, this is not limited thereto, and in another embodiment, the first surface 11a of each of the first magnets 130-1 to 130-4 may be N pole and the second surface 11b may be S pole.

At least two or more first magnets may be disposed or installed at corner portions of the housing 140 so that they face each other.

For example, two pairs of first magnets 130 - 1 to 130 - 4 facing each other to cross each other may be disposed at corner portions 142 - 1 to 142 - 4 of the housing 140 . At this time, the planar shape of each of the first magnets 130-1 to 130-4 may be a triangle, a pentagon, or a diamond shape.

In another embodiment, a pair of first magnets facing each other may be disposed only at two corner portions of the housing 140 facing each other.

FIG. 6 is a cross-sectional view of the lens driving device 100 shown in FIG. 2 taken in an AB direction, and FIG. 7 is a cross-sectional view of the lens driving device 100 shown in FIG. 2 taken in a CD direction.

Referring to FIGS. 6 and 7 , each of the second and third magnets 180 and 185 may not overlap the first coil 120 in a direction perpendicular to the optical axis OA, but is not limited thereto. . In another embodiment, each of the second and third magnets 180 and 185 may overlap the first coil 120 in a direction perpendicular to the optical axis OA.

Also, at the initial position of the AF movable unit, the second magnet 180 may overlap or be aligned with the third magnet 185 in a direction perpendicular to the optical axis OA.

Also, at the initial position of the AF movable unit, the first position sensor 170 may overlap each of the second and third magnets 180 and 185 in a direction perpendicular to the optical axis OA, but is not limited thereto. In another embodiment, the first position sensor 170 may not overlap at least one of the second and third magnets 180 and 185 in a direction perpendicular to the optical axis OA.

In addition, the first position sensor 170 is directed toward the first coil 120 from the first position sensor 170 or in a direction perpendicular to the outer surface of the first side part 141-1 of the housing 140. It may not overlap with the magnets 130-1 to 130-4.

Next, the first position sensor 170 and the circuit board 190 will be described.

FIG. 8 shows an enlarged view of the circuit board 190 and the first position sensor 170 shown in FIG. 4 , and FIG. 9 shows an embodiment of the first position sensor 170 shown in FIG. 8 .

Referring to FIG. 8 , the first position sensor 170 may be mounted on a circuit board 190 disposed on the housing 140 and fixed to the housing 140 . For example, the first position sensor 170 may move together with the housing 140 when compensating for hand shake.

The first position sensor 170 can monitor the strength of the magnetic field of the second magnet 180 mounted on the bobbin 110 according to the movement of the bobbin 110 and output an output signal according to the detected result. there is.

The first position sensor 170 may be disposed on the first surface of the circuit board 190 . Here, the first surface of the circuit board 190 may be any one surface of the circuit board 190 facing the bobbin 110 when the circuit board 190 is mounted on the housing 140 .

Referring to FIG. 9 , the first position sensor 170 may include a Hall sensor 61 and a driver 62 .

For example, the Hall sensor 61 may be made of silicon, and the output VH of the Hall sensor 61 may increase as the ambient temperature increases. For example, the ambient temperature may be the temperature of the lens driving device, eg, the temperature of the circuit board 190 , the temperature of the hall sensor 61 , or the temperature of the driver 62 .

Also, in another embodiment, the Hall sensor 61 may be made of GaAs, and the output (VH) of the Hall sensor 61 may have a slope of about -0.06%/°C with respect to the ambient temperature.

The first position sensor 170 may further include a temperature sensing element 63 capable of sensing ambient temperature. The temperature sensing element 63 may output a temperature detection signal Ts according to a result of measuring the temperature around the first position sensor 170 to the driver 62 .

For example, the Hall sensor 61 of the first position sensor 190 may detect the strength of the magnetic force of the second magnet 180 and generate an output VH according to the result.

The driver 62 may output a driving signal dV for driving the Hall sensor 61 and a driving signal Id1 for driving the first coil 120 .

For example, by using data communication using a protocol, for example, I2C communication, the driver 62 receives clock signals SCL, data signals SDA, and power signals VCC and GND from the control units 830 and 780. can receive

The driver 62 uses the clock signal SCL and the power signals VCC and GND to drive the hall sensor 61 and the drive signal dV and the first coil 120. (Id1) can be created.

The first position sensor 170 includes four terminals for transmitting and receiving a clock signal SCL, a data signal SDA, and power signals VCC and GND, and two terminals for providing a driving signal to the first coil 120. It may include two terminals.

In addition, the driver 62 receives the output (VH) of the Hall sensor 61, and transmits information about the output (VH) of the Hall sensor 61 through data communication using a protocol, for example, I2C communication. The clock signal SCL and the data signal SDA may be transmitted to the controllers 830 and 780 .

In addition, the driver 62 receives the temperature detection signal Ts measured by the temperature sensing element 63, and transmits the temperature detection signal Ts to the control unit using data communication using a protocol, for example, I2C communication. (830, 780).

The control unit 830 or 780 may perform temperature compensation for the output VH of the Hall sensor 61 based on the change in ambient temperature measured by the temperature sensing element 63 of the first position sensor 170. .

For example, when the driving signal (dV) or the bias signal of the Hall sensor 61 is 1 [mA], the output (VH) of the Hall sensor 61 of the first position sensor 170 is -20 [mV] to It may be +20 [mV].

And, in the case of temperature compensation for the output VH of the Hall sensor 61 having a negative slope with respect to the change in ambient temperature, the output VH of the Hall sensor 61 of the first position sensor 170 is 0[ mV] to +30 [mV].

When the output of the Hall sensor 61 of the first position sensor 170 is displayed in the xy coordinate system, the output range of the Hall sensor 61 of the first position sensor 170 is defined as the first quadrant (eg, 0 [mV] ~ +30[mV]) for the following reasons.

Since the output of the Hall sensor 61 in the first quadrant and the output of the Hall sensor 61 in the third quadrant of the xy coordinate system move in opposite directions according to the change in ambient temperature, both the first and third quadrants are AF When used as a driving control section, the accuracy and reliability of the Hall sensor may be degraded. Accordingly, in order to accurately compensate for a change in ambient temperature, a predetermined range of the first quadrant may be set as an output range of the Hall sensor 61 of the first position sensor 170 .

The first position sensor 170 includes first to third terminals for a clock signal SCL and two power signals VCC and GND, a fourth terminal for data SDA, and a first coil 120 ) may include fifth and sixth terminals for providing driving signals.

Referring to FIGS. 5 and 7 , first to sixth terminals of the first position sensor 170 may be electrically connected to a corresponding one of pads 1 to 6 of the circuit board 190 .

The circuit board 190 includes first to fourth pads 1 to 4 provided on or above the second surface, and fifth and sixth pads provided on the bottom or bottom of the first surface of the circuit board 190 . The pads 5 and 6 may be included, but are not limited thereto, and the pads may be disposed on at least one of the first surface or the second surface of the circuit board 190 in various forms.

In another embodiment, the first position sensor 170 may be implemented solely with a position detection sensor such as a Hall sensor.

The circuit board 190 may include an upper portion S1 and a lower portion S2 positioned under the upper portion S1. A side surface of the upper end portion S1 may have a protruding shape relative to the side surface of the lower portion S2, but is not limited thereto.

For example, the first to fourth pads may be spaced apart from each other on the second surface of the upper part S1, and the fifth and sixth pads 5 and 6 may be spaced apart from each other on the first surface of the lower part S2. and can be placed.

A groove ( 8a) may be provided. For example, the groove 8a may be disposed at the center of the lower end S2 of the circuit board 190 .

The circuit board 190 may include a circuit pattern or wiring (not shown) for electrically connecting the first to sixth pads 1 to 6 and the first to sixth terminals of the first position sensor 170. can

For example, the circuit board 190 may be a printed circuit board or FPCB.

The first to fourth pads 1 to 4 of the circuit board 190 are connected to the circuit board 250 by the upper springs 150-1 to 150-4 and support members 220-1 to 220-4. ) may be electrically connected to the terminals 251 , and thus the first position sensor 170 may be electrically connected to the circuit board 250 .

The fifth pad 5 and the sixth pad 6 of the circuit board 190 may be coupled to the lower springs 160-1 and 160-2, and the lower springs 160-1 and 160-2 As a result, the first position sensor 170 may be electrically connected to the first coil 120 .

For example, the fifth pad 5 of the circuit board 190 may be coupled to the first lower spring 160-1, and the sixth pad 6 of the circuit board 190 may be coupled to the second lower spring 160-2. ) can be combined.

Next, the upper elastic member 150, the lower elastic member 160, and the support member 220 will be described.

10 shows a plan view of the upper elastic member 150 shown in FIG. 1, FIG. 11 shows a plan view of the lower elastic member 160 shown in FIG. 1, and FIG. 12 shows an upper elastic member shown in FIG. 1 ( 150), a lower elastic member 160, a base 210, a support member 220, a second coil 230, and a perspective view of a circuit board 250 coupled, FIG. 13 is the second shown in FIG. An exploded perspective view of the coil 230, the circuit board 250, the base 210, and the second position sensor 240 is shown, and FIG. 14 is the housing 140 shown in FIG. 1, the first magnets 130- 1 to 130-4), a bottom perspective view of the lower elastic member 160, and the circuit board 190.

The upper elastic member 150 may be coupled to the top of the bobbin 110 and the top of the housing 140, and may support the top of the bobbin 110 and the top of the housing 140.

The lower elastic member 160 may be connected to the lower part of the bobbin 110 and the lower part of the housing 140 to support the lower part of the bobbin 110 and the lower part of the housing 140 .

The upper elastic member 150 and the lower elastic member 160 may elastically support the bobbin 110 with respect to the housing 140 .

The support member 220 may movably support the housing 140 in a direction perpendicular to the optical axis with respect to the base 210, and connect at least one of the upper or lower elastic members 150 and 160 and the circuit board 250. can be electrically connected.

Referring to FIG. 10 , the upper elastic member 150 may include a plurality of upper springs 150-1 to 150-4 electrically separated from each other. 10 shows four electrically separated upper springs, but the number is not limited thereto.

The upper elastic member 150 is directly bonded to the first to fourth pads 191-1 to 191-6 of the circuit board 190 and electrically connected to the first to fourth upper springs 150-1 to 191-6. 150-4) may be included.

A portion of each of the plurality of upper springs may be disposed on the first side portion 141-1 of the housing 140 on which the circuit board 190 is disposed, and a second portion excluding the first side portion 141-1. At least one upper spring may be disposed on each of the through fourth side parts 141-2 to 141-4.

The four pads 1 to 4 provided on the upper end S1 of the circuit board 190 disposed on the first side part 141-1 of the housing 140a are connected to the four upper springs 150-1 to 150-1. 4), each of the first outer frame 151 of the four upper springs 150-1 to 150-4 on the first side portion 141-1 of the housing 140 because it is electrically directly connected to the structure. A part of may be placed.

Each of the upper springs 150-1 to 150-4 may be disposed on a corresponding one of the corner portions 142-1 to 142-4 of the housing 140, and the first side of the housing 140 ( 141-1) may be provided with extension portions P1 to P4.

Each of the extension portions P1 to P4 of the upper springs 150-1 to 150-4 includes four pads 1 to 4 provided on the upper end S1 of the circuit board 190 by a conductive adhesive member such as solder. ) can be directly coupled to the corresponding one of them.

The first upper spring 150-1 may be disposed at the first corner portion 142-1 of the housing 140, and the second upper spring 150-2 may be disposed at the second corner portion of the housing 140 ( 142-2), the third upper spring 150-3 may be disposed at the third corner portion 142-3 of the housing 140, and the fourth upper spring 150-4 is It may be disposed at the fourth corner portion 142-4 of the housing 140.

Each of the first to fourth upper springs 150 - 1 to 150 - 4 may include a first outer frame coupled to the housing 140 . For example, each of the first to fourth upper springs 150-1 to 150-4 is coupled to a corresponding one of the first to fourth corner portions 142-1 to 142-4 of the housing 140. It may include a first outer frame.

At least one of the first to fourth upper springs 150-1 to 150-4 connects the first inner frame 151 coupled to the bobbin 110 and the first inner frame and the first outer frame. One frame connection unit 153 may be further included.

In FIG. 10 , each of the first to third upper springs 150-1 to 150-3 includes only a first outer frame, and does not include a first inner frame and a first frame connecting portion. Also, only the fourth upper spring 150-4 may include the first inner frame 151, the first outer frame, and the first frame connecting portion 153, but is not limited thereto.

For example, a hole 151a for coupling with the first coupling part 113 of the bobbin 110 may be provided in the first inner frame 151, but is not limited thereto.

The first outer frames of the first to fourth upper elastic members 150-1 to 150-4 are provided with holes 152a to be coupled with the first coupling parts 143 and Q1 to Q4 of the housing 140. It can be.

The first outer frame of each of the first to fourth upper springs 150-1 to 150-4 is coupled to a corresponding one of the supporting members 220-1 to 220-4. ), a second coupling part 520 coupled to a corresponding one of the corner parts of the housing 140, a connection part 530 connecting the first coupling part 510 and the second coupling part 520, and 1 may include extension parts P1 to P4 connected to the coupling part 510 and extending to the first side part 141 - 1 of the housing 140 .

For example, one end of the first support member 220-1 may be coupled to the first coupling part 510 of the first upper spring 150-1 by solder or a conductive adhesive member, and the second support member 220 One end of -2) may be coupled to the first coupling part 510 of the second upper spring 150-1, and one end of the third support member 220-3 may be coupled to the third upper spring 150-3. may be coupled with the first coupling portion 510 of the fourth support member 220-4, and one end of the fourth upper spring 150-4 may be coupled with the first coupling portion 510.

The first coupler 510 may have a hole 52 through which the support members 220-1 to 220-4 pass. One ends of the support members 220-1 to 220-4 passing through the hole 52 may be directly coupled to the first coupling part 510 by a conductive adhesive member or solder 910 (see FIG. 12). 1 coupling part 510 and the support members 220-1 to 220-4 may be electrically connected.

For example, the first coupling part 510 is a region where the solder 910 is disposed for coupling with the support members 220-1 to 220-4, and includes a hole 52 and a region around the hole 52. can do.

The second coupling portion 520 may include at least one coupling region (eg, 5a, 5b) coupled to the corner portions 142-1 to 142-4 of the housing 140.

For example, the coupling regions (eg, 5a and 5b) of the second coupling portion 520 may include at least one hole 152a coupled to the first coupling portions Q1 to Q4 of the housing 140 .

In FIG. 10 , each of the coupling regions 5a and 5b of the second coupling part 520 includes two holes 152a, and the corner portions of the housing 140 each have holes of the coupling regions 5a and 5b. Four first coupling parts Q1 to Q4 corresponding to are provided, but the number of holes 152a and the number of first coupling units are not limited thereto. For example, each of the coupling areas 5a and 5b may have one or more holes, and correspondingly, one or more first coupling portions are provided in the corner portions 142-1 to 142-4 of the housing 140. It can be.

For example, coupling areas 5a and 5b of the second coupling portion 520 of the first to fourth upper springs 150-1 to 150-4 balance the housing 140 so as not to shift to one side. ) may be left-right symmetric with respect to the reference lines (eg, 501 to 504), but is not limited thereto.

In addition, the first coupling parts Q1 to Q4 of the housing 140 may be left-right symmetrical with respect to the reference line (eg, 501 to 504), and may be provided with two on each side of the reference line, but the number is not limited thereto. no.

The reference lines 501 to 504 may be straight lines passing through the central point 101 and corresponding one of the corners of the corner portions 142 - 1 to 142 - 4 of the housing 140 . Here, the central point 101 may be the center of the housing 140, the center of the bobbin 110, or the center of the upper elastic member 150. Also, for example, an edge of the corner portion of the housing 140 may be a corner aligned with or corresponding to the center of the corner portion of the housing 140 .

In the embodiment of FIG. 10 , each of the coupling regions 5a and 5b of the second coupling part 520 is implemented to include a hole, but is not limited thereto, and in another embodiment, the coupling regions are coupled to the housing 140. It may be implemented in various forms sufficient as described below, for example, a groove form.

For example, the hole 152a of the second coupling part 520 includes at least one cutout (not shown) for the adhesive member to permeate between the first coupling part 143 of the housing 140 and the hole 152a. can have

The connecting portion 530 may connect the coupling regions 52a and 52b of the first coupling portion 510 and the second coupling portion 520 .

For example, the connection part 530 connects the first coupling area 52a of the second coupling portion 520 of each of the first to fourth upper springs 150-1 to 150-4 and the first coupling portion 510. It may include a first connection part 530a connecting, and a second connection part 530b connecting the second coupling area 52b of the second coupling part 520 and the first coupling part 510 .

Each of the first and second connection parts 530a and 530b may include a bent part that is bent at least once or a curved part that is bent at least once, but is not limited thereto, and may have a straight line shape in another embodiment.

For example, the second coupling part 510 may contact the upper surface of the corner parts 142-1 to 142-4 of the housing 140, and the corner parts 142-1 to 142-4 of the housing 140 can be supported by For example, the connection part 530 is not supported by the upper surface of the housing 140 and may be spaced apart from the housing 140 . In addition, a damper (not shown) may be filled in the empty space between the connector 530 and the housing 140 to prevent oscillation due to vibration.

A width of each of the first and second connection parts 530a and 530b may be narrower than that of the second coupling part 520, and thus, the connection part 530 may be easily moved in the first direction. The stress applied to the upper springs 150-1 to 150-4 and the stress applied to the support members 220-1 to 220-4 may be distributed.

Each of the extension parts P1 to P4 of the first outer frames of the first to fourth upper springs 150-1 to 150-4 extends from the second coupling part 520 to the first side part 141 of the housing 140. -1) may extend toward a corresponding one of the first to fourth pads 1 to 4 of the circuit board 190 .

One end of each of the extension portions P1 to P4 may be coupled to a corresponding one of the pads 1 to 4 of the circuit board 190 by soldering or a conductive adhesive member.

In another embodiment, the extension parts of the first outer frames of the first to fourth upper springs may extend from the first coupling part.

Each of the first and second extension parts P1 and P2 has one end of the first side part 141-1 of the housing 140 to facilitate coupling with a corresponding one of the pads of the circuit board 190. It may be bent from the outer surface to the inner surface, but is not limited thereto.

The first outer frame of the third upper spring 150-3 is connected between the second coupling part 520 and the extension part P3, and is connected to the fourth side part 141-4 of the housing 140 and the fourth corner. An extension frame 154 located in the portion 142-4 may be further included. In order to prevent the third upper spring 150-3 from lifting by strengthening the coupling force with the housing 140, the extension frame 154 is a first coupling portion provided at the fourth corner portion 142-4, for example, A hole 152a1 to be coupled with the protrusion 152a1 may be provided.

The first outer frame of the fourth upper spring 150-4 includes the first to fourth frames 155a to 155d disposed on the first to fourth side parts 141-1 to 141-4 of the housing 140. ), and each of the first to fourth frames 155a to 155d may have at least one hole to be coupled with the first coupling part 143 of the housing 140 .

The third frame 155c disposed on the third side part 141-3 of the housing 140 may be connected to the second coupling part 520 of the fourth upper spring 150-4, and of the housing 140. It may extend to the third side portion 141-3.

The fourth upper spring 150-4 may include four frame connection parts 153, and each of the frame connection parts 153 corresponds to one of the first to fourth frames 155a to 155d. The first inner frame 151 may be connected.

The extension part P4 of the fourth upper spring 150-4 may be connected to the first frame 155a disposed on the first side part 141-1 of the housing 140.

As described above, each of the first to fourth upper springs may include extensions P1 to P4 disposed on the first side portion 141-1 of the housing 140, and extensions P1 to P4. The upper springs 150-1 to 150-4 may be easily coupled to the four pads 1 to 4 provided on the upper portion S1 of the circuit board 190 by P4.

Referring to FIG. 11 , the lower elastic member 160 may include a plurality of lower springs 160-1 and 160-2.

For example, each of the first and second lower springs 160-1 and 160-2 is of the second inner frame 161 and the housing 140 coupled or fixed to the bottom, bottom, or bottom of the bobbin 110. The second outer frames 162-1 to 162-3 coupled or fixed to the bottom, bottom, or bottom, and the second inner frame 161 and the second outer frames 162-1 to 162-3 are connected to each other. It may include a second frame connection unit 163 to do.

A hole 161a for coupling with the second coupling part of the bobbin 110 may be provided in the second inner frame 161, and the second outer frame 162-1 to 162-3 may have a hole 161a of the housing 140. A hole 162a for coupling with the second coupling part 149 may be provided.

For example, each of the first and second lower springs 160-1 and 160-2 may include three second outer frames and two second frame connectors, but is not limited thereto. In another embodiment, each of the first and second lower springs may include one or more second outer frames and one or more second frame connection parts.

Each of the first and second lower springs 160-1 and 160-2 includes a connection frame 164-1 and 164-2 connecting the second outer frames 162-1 to 162-3 to each other. can do.

A width of each of the connection frames 164-1 and 164-2 may be smaller than that of each of the first inner frames, but is not limited thereto.

The connection frames 164-1 and 164-2 are configured to avoid spatial interference with the second coils 230 and the first magnets 130-1 to 130-4. 230-4) and the outside of the second coils 230-1 to 230-4 and the first magnets 130-1 to 130-4 based on the first magnets 130-1 to 130-4. can be located on the side. At this time, the outer sides of the second coils 230-1 to 230-4 and the first magnets 130-1 to 130-4 are the second coils 230-1 to 230-4 and the first magnets. Based on (130-1 to 130-4), the center of the bobbin 110 or the center of the housing 140 may be located on the opposite side of the region.

Also, for example, the connection frames 164-1 and 164-2 do not overlap with the second coils 230-1 to 230-4 or/and the first magnets 130-1 to 130-4 in the optical axis direction. However, it is not limited thereto, and in another embodiment, at least a portion of the connection frames 164-1 and 164-2 are connected to the second coils 230-1 to 230-4 in the optical axis direction and/or It may be aligned or overlapped with the first magnets 130-1 to 130-4.

The upper springs 150-1 to 150-8 and the lower springs 160-1 and 160-2 may be formed of plate springs, but are not limited thereto, and may be implemented as coil springs or the like.

Next, the support members 220-1 to 220-4 will be described.

The supporting members 220-1 to 220-4 may be disposed to correspond to the corner portions 142-1 to 142-4 of the housing 140, and the upper springs 150-1 to 150-4 and Circuit boards 250 may be connected to each other.

The support members 220-1 to 220-4 may electrically independently connect the first to fourth upper springs 150-1 to 150-4 and the circuit board 250 to each other.

The support members 220-1 to 220-4 may be spaced apart from the housing 140, and are not fixed to the housing 140, but ends of the support members 220-1 to 220-4 are first It may be directly connected or coupled to the coupling part 510 . Also, the other ends of the support members 220-1 to 220-4 may be directly connected or coupled to the circuit board 250.

For example, the support members 220-1 to 220-4 may pass through holes 147 provided in corner portions 142-1 to 142-4 of the housing 140, but are not limited thereto. In another embodiment, the support members may be disposed adjacent to the boundary line between the first side parts 141-1 to 141-4 and the corner parts 142 of the housing 140, and the corner part 142 of the housing 140 -1 to 142-4) may not pass.

The first coil 120 may be directly connected or coupled to a corresponding one of the second inner frames of the first and second lower springs 160-1 and 160-2.

The four pads 1 to 4 of the circuit board 190 are electrically connected to the corresponding four upper springs 150-1 to 150-4 and the upper springs 150-1 to 150-4. It may be electrically connected to the circuit board 250 by the supporting members 220-1 to 220-4.

In addition, each of the two pads 5 and 6 of the circuit board 190 is a second outer frame 162-3 of a corresponding one of the first and second lower springs 160-1 and 160-2. connected or coupled to

For example, each of the fifth and sixth pads 5 and 6 of the circuit board 190 is connected to a corresponding one of the first and second lower springs 160-1 and 160-2 by soldering or a conductive adhesive member. It may be coupled to the holes h1 and h2 provided in one second outer frame 162-3.

The first position sensor 170 transmits signals GND, VCC, SCL, and SDA for data communication through the upper springs 150-1 to 150-4 and support members 220-1 to 220-4. ) may be transmitted to or received from the circuit board 250 .

In addition, the first coil 120 may be electrically connected to the first and second lower springs 160-1 and 160-2, and the fifth and sixth pads 5 and 6 of the circuit board 190 and the first and second lower springs 160-1 and 160-2 are directly connected, so that the first position sensor 170 and the first coil 120 can be electrically connected, and the first position sensor 170 ) may provide a driving signal to the first coil 120 .

The support member 220 may be implemented as a member capable of being supported by elasticity, for example, a suspension wire, a leaf spring, or a coil spring. Also, in another embodiment, the support member 220 may be integrally formed with the upper elastic member 150.

Next, the base 210, the circuit board 250, and the second coil 230 will be described.

Referring to FIG. 13 , the base 210 may have an opening corresponding to the opening of the bobbin 110 and/or the housing 140, and may have a shape matching or corresponding to the cover member 300, for example, It may have a rectangular shape.

The base 210 may have a step 211 to which an adhesive can be applied when the cover member 300 is adhesively fixed. At this time, the step 211 may guide the side plate of the cover member 300 coupled to the upper side, and the lower end of the side plate of the cover member 300 may come into contact with the step 211 . The step 211 of the base 210 and the lower end of the side plate of the cover member 300 may be bonded or fixed by an adhesive or the like.

A supporting portion 255 may be provided in an area of the base 210 facing the terminal 251 of the circuit board 250 . The supporting portion 255 may support the terminal surface 253 of the circuit board 250 on which the terminal 251 is formed.

The base 210 may have a recess 212 at a corner region corresponding to a corner of the cover member 300 . When the corner of the cover member 300 has a protruding shape, the protrusion of the cover member 300 may be engaged with the base 210 at the second groove 212 .

In addition, seating grooves 215-1 and 215-2 in which the second position sensor 240 can be disposed may be provided on the upper surface of the base 210. A mounting portion (not shown) in which the filter 610 of the camera module 200 is installed may be formed on the lower surface of the base 210 .

The second coil 230 may be disposed above the circuit board 250, and the OIS position sensors 240a and 240b are seated in the grooves 215-1 and 215 of the base 210 located below the circuit board 250. -2) can be placed in

The second position sensor 240 may include first and second OIS position sensors 240a and 240b, and the OIS position sensors 240a and 240b detect displacement of the OIS movable part in a direction perpendicular to the optical axis. can do. Here, the OIS movable unit may include the AF movable unit and components mounted on the housing 140 .

For example, the OIS movable unit may include the AF movable unit and the housing 140, and may further include magnets 130-1 to 130-4 according to embodiments. For example, the AF movable unit may include the bobbin 110 and components mounted on the bobbin 110 and moving together with the bobbin 110 . For example, the AF moving unit may include a bobbin 110 , a lens (not shown) mounted on the bobbin 110 , and a first coil 120 .

The circuit board 250 is disposed on the upper surface of the base 210 and may have an opening corresponding to an opening of the bobbin 110 , an opening of the housing 140 , or/and an opening of the base 210 . The shape of the circuit board 250 may coincide with or correspond to the upper surface of the base 210, for example, a rectangular shape.

The circuit board 250 may be bent from an upper surface and include a plurality of terminals 251 receiving electrical signals from the outside or at least one terminal surface 253 provided with pins.

The second coil 230 is disposed above the circuit board 250 in correspondence with the first magnets 130 - 1 to 130 - 4 disposed on the housing 140 .

The second coil 230 may be disposed to face or overlap the first magnets 130-1 to 130-4 disposed at the corners 142-1 to 142-4 of the housing 140 in the optical axis direction. there is.

For example, the second coil 230 may include four second coils 230 - 1 to 230 - 4 disposed or formed in four corner regions of the rectangular circuit member 231 .

For example, the second coil 230 includes two second coils 230-1 and 230-3 for the second direction and two second coils 230-2 and 230-4 for the third direction. It can be done, but is not limited thereto. In another embodiment, the second coil 230 may include only one second coil for the second direction and one second coil for the third direction, or may include four or more second coils.

Due to the interaction between the first magnets 130-1 to 130-4 and the second coils 230-1 to 230-4, the housing 140 moves in the second and/or third direction, for example, the x-axis. and/or may move in the y-axis direction, and thus hand shake correction may be performed.

In FIG. 13 , the second coils 230-1 to 230-4 are implemented in a form provided on a circuit board 250 and a separate circuit member 231, but are not limited thereto. The coils 230-1 to 230-4 may be implemented in the form of ring-shaped coil blocks or FP coils. In another embodiment, the second coil 230 may be implemented in the form of a circuit pattern formed on the circuit board 250 .

The circuit board 250 and the circuit member 231 are separately expressed as separate components, but are not limited thereto. It can also be expressed in terms of In this case, the other ends of the support members may be coupled to the "circuit member (eg, the lower surface of the circuit member)".

In order to avoid spatial interference with the supporting members 220-1 to 220-4, grooves 23 may be provided at corners of the circuit member 231, and the supporting members may pass through the grooves 23. . In another embodiment, a hole passing through the circuit member 231 may be formed instead of the groove 23 .

Each of the OIS position sensors 240a and 240b may be a Hall sensor, and any sensor capable of detecting a magnetic field strength may be used. For example, each of the OIS position sensors 240a and 240b may be implemented in the form of a driver including a Hall sensor or implemented as a position detection sensor alone such as a Hall sensor.

Terminals 251 may be provided on the terminal surface 253 of the circuit board 250 .

Signals (SCL, SDA, VCC, GND) for data communication with the first position sensor 190 can be transmitted and received through the plurality of terminals 251 installed on the terminal surface 253 of the circuit board 250, , A driving signal may be supplied to the OIS position sensors 240a and 240b, and signals output from the OIS position sensors 240a and 240b may be received and output to the outside.

According to the embodiment, the circuit board 250 may be provided with FPCB, but is not limited thereto, and terminals of the circuit board 250 may be directly formed on the surface of the base 210 using a surface electrode method or the like. do.

The circuit board 250 may include a hole 250a through which the support members 220-1 to 220-4 pass. The position and number of the holes 250a may correspond to or coincide with the position and number of the supporting members 220-1 to 220-4.

The supporting members 220-1 to 220-4 may pass through the hole 250a of the circuit board 250 and be electrically connected to a circuit pattern disposed on the lower surface of the circuit board 250 through soldering or the like. It is not limited.

In another embodiment, the circuit board 250 may not have a hole, and the support members 220-1 to 220-4 are soldered to circuit patterns or pads formed on the upper surface of the circuit board 250. They may be electrically connected.

Alternatively, in another embodiment, the support members 220-1 to 220-4 may be electrically connected to the circuit member 231, and the circuit member may be electrically connected to the circuit board.

In the embodiment, since the driving signal is directly provided from the first position sensor 170 to the first coil 120, the driving signal is directly provided to the first coil 120 through the circuit board 250. In comparison, the number of supporting members can be reduced, and the electrical connection structure can be simplified.

In addition, since the first position sensor 170 can be implemented as a driver IC capable of measuring temperature, the output of the Hall sensor is compensated to have a minimum change according to temperature change or the output of the Hall sensor has a constant slope according to temperature change. By compensating for , it is possible to improve the accuracy of AF driving regardless of temperature change.

15 shows the arrangement of the first magnets 130-1 to 130-4, the second and third magnets 180 and 185, the first position sensor 170, and the circuit board 190.

Referring to FIG. 15 , the first position sensor 170 includes two first magnets 130-1 and 130-4 disposed at two corner portions 142-1 and 142-4 of the housing 140. can be located in between.

For example, at least one of the first position sensor 170 and the circuit board 190 is connected to the first magnet 130-1 disposed at the first corner portion 142-1 and the fourth corner portion 142-4. It may be disposed between the disposed fourth magnets 130-4.

In addition, the second magnet 180 is between the first magnet 130-1 disposed at the first corner portion 142-1 and the fourth magnet 130-4 disposed at the fourth corner portion 142-4. can be placed in

The second magnet 180 is formed by the first and fourth magnets 130-1 in a direction parallel to the direction from the first corner part 142-1 to the fourth corner part 142-4 of the housing 140. , 130-4) may overlap each of the first surfaces 11a.

In addition, the third magnet 185 is between the second magnet 130-2 disposed at the second corner portion 142-2 and the third magnet 130-3 disposed at the third corner portion 142-3. can be placed in

The third magnet 185 extends from the first corner portion 142-1 to the fourth corner portion 142-4 of the housing 140 in a direction parallel to the second and third magnets 130-2. , 130-3) may overlap each of the first surfaces 11a.

The first position sensor 170 is connected to the first magnet 130-1 in a direction parallel to the direction from the first corner part 142-1 to the fourth corner part 142-4 of the housing 140. 4 may overlap with the magnets 130-4, and the first to fourth corners are perpendicular to the direction from the first corner portion 142-1 to the fourth corner portion 142-4 of the housing 140. It may not overlap with the magnets 130-1 and 130-4.

For example, in a direction parallel to a direction from the first corner part 142-1 to the fourth corner part 142-4 of the housing 140, the first position sensor 170 may be connected to the first to fourth magnets ( 130-1 and 130-4 may overlap each corner 51a.

Lengths L1 and L2 of the first magnets 130-1 and 130-4 in the transverse direction are directed from the center of the housing 140 to the corners 142-1 and 142-4 of the housing 140. Since it decreases to , magnetic field interference between the sensing magnet 180 and the first magnets 130-1 and 130-4 can be reduced.

In the embodiment, since magnetic field interference between the sensing magnet 180 and the first magnets 130-1 and 130-4 is mitigated, it is possible to prevent a decrease in AF driving force due to magnetic field interference, thereby requiring a separate yoke. Even if it is not provided, desired AF driving force can be obtained.

In addition, since the horizontal length of the first magnets 130-2 and 130-3 decreases in the direction from the center of the housing 140 toward the corner portions 142-2 and 142-3 of the housing 140, , magnetic field interference between the balancing magnet 185 and the first magnets 130-1 and 130-4 can be reduced.

As described above, according to the embodiment, the number of support members can be reduced, and the size of the lens driving device can be reduced due to the decrease in the number of support members.

Also, since the number of supporting members is reduced, resistance of the supporting members can be reduced, current consumption can be reduced, and sensitivity of OIS driving can be improved.

In addition, instead of reducing the number of support members, the thickness of the support members may be increased to obtain the same elastic force, and as the thickness of the support members increases, the influence of the OIS movable part due to external impact may be reduced.

According to another embodiment, the first coil 120 may be electrically connected to the circuit board 190 through lower springs, support members, and upper springs. For this electrical connection, the upper elastic member may include 6 upper springs, and the lower elastic member may include 2 lower springs.

The support member may include six support members, two support members may be disposed to face each other at each of the two corner portions of the housing 140, and one support member may be disposed at each of the other two corner portions. They can be placed facing each other.

16A is a connection between a first outer frame of first to sixth upper springs 150-1' to 150-6', a first coil 120, and a circuit board 190-1 according to another embodiment. It is a conceptual diagram that represents a relationship.

Referring to FIG. 16A , the circuit board 190-1 may be disposed on the first side portion 141-1 of the housing 140 and may include six pads 1a to 6a. The six pads 1a to 6a may be disposed on at least one of the first surface or the second surface of the circuit board 190 and may be located at an upper portion S1.

For example, the first outer frames 151-1 to 151-4 of each of the first to fourth upper springs 150-1' to 150'4' are formed on the first to fourth corner portions of the housing 140 ( 142-1 to 142-4) may be disposed in a corresponding one.

The first outer frame 151-5 of the fifth upper spring 150-5' may be disposed at any one of the first to fourth corner parts 142-1 to 142-4, and the sixth upper spring The first outer frame 151-6 of the 150-6' may be disposed on any other one of the first to fourth corner portions 142-1 to 142-4.

For example, the first outer frames 151-1 and 151-5 of the first and fifth upper springs 150-1' and 150-5' are provided at the first corner portion 142-1 of the housing 140. ) may be spaced apart from each other, and at the third corner portion 142-3 of the housing 140, the first outer frames of the third and sixth upper springs 150-3' and 150-6' (151-3, 151-6) may be spaced apart from each other.

The first outer frames 151-1 to 151-6 of each of the first to sixth upper springs 150-1' to 150-6' are coupled to the support members 220-1 to 220-6. 1 coupling portion, a second coupling portion coupled to a corner portion of the housing 140, a coupling portion connecting the first coupling portion and the second coupling portion, and pads 1a of the circuit board 190-1 from the first coupling portion. to 6a) may include extension portions P11 to P16 extending toward the corresponding one of the pads.

Although not shown in FIG. 16A, at least one of the first to sixth upper springs 150-1' to 150-6' is coupled to the bobbin 110, the first inner frame, and the first inner frame and the first inner frame. It may include a first frame connecting portion connecting the outer frames.

For direct coupling with the pads 1a to 6a of the circuit board 190-1, at least a portion of each of the first to sixth extension parts P11 to P16 is formed on the first side part 141-1 of the housing 140. ) (eg, the top, top surface, or top of the first side portion 141-1).

One end of each of the first to fourth support members 220-1 to 220-4 corresponds to a first outer frame of any one of the first to fourth upper springs 150-1' to 150-4'. (151-1 to 151-4) may be coupled to the first coupling part. The other end of each of the first to fourth support members 220-1 to 220-4 may be coupled to the circuit board 250 and may be electrically connected to a corresponding one of the terminals of the circuit board 250. there is.

One end of each of the fifth and sixth support members 220-5 and 220-6 is a first outer frame of a corresponding one of the fifth and sixth upper springs 150-5' and 150-6'. It may be coupled to the first coupling part of (151-5, 151-6). The other end of each of the fifth and sixth support members 220-5 and 220-6 may be coupled to a second outer frame of a corresponding one of the first and second lower springs.

The first coil 120 may be coupled to the second inner frame of the first and second lower springs, and may be electrically connected. Accordingly, the first coil 120 includes first and second lower springs, fifth and sixth support members 220-5 and 220-6 connected thereto, and fifth and sixth upper springs 150-5 and 220-6. 5' and 150-6'), and the first coil 120 can be electrically connected to the pads 5a and 6a of the circuit board 190 through the extension portions P15 and P16. .

FIG. 16B shows the first outer frame of the first to sixth upper springs 150-1' to 150-6', the first coil 120, and the circuit board 190-1 according to another embodiment. It is a conceptual diagram showing the connection relationship.

Referring to FIG. 16B , the first position sensor 170-1 may be implemented solely with a position detection sensor such as a hall sensor that does not include a driver. The circuit board 190-2 may be disposed on the first side portion 141-1 of the housing 140 and may include four pads 1b to 4b.

The upper elastic member 150 may include first to sixth upper springs 150-1" to 150-6".

Each of the first to fourth upper springs 150-1" to 150-4" is a first outer frame disposed at a corresponding one of the corner portions 142-1 to 142-4 of the housing 140 ( 151-1" to 151-4"), and the fifth and sixth upper springs 150-5" and 150-6" are respectively the first and third corner portions of the housing 140 ( It may include first outer frames 151-5" and 151-6" disposed on corresponding one of 142-1 and 142-3.

Each of the first upper spring 150-1", the third upper spring 150-3", the fifth upper spring 150-5", and the sixth upper spring 150-6" is a first outer frame. An extension portion P21 extending from 151-1", 151-3", 151-5", and 151-6" toward a corresponding one of the pads 1b to 4b of the circuit board 190-2. to P24). Each of the extension portions P21 to P24 may be coupled to a corresponding one of the pads 1b to 4b.

The support member 220 includes eight support members 220-1", 220-2a, 220-2b, 220-3", 220-4a, 220-4b, 220-5", and 220-6". can do

Two support members may be disposed at each corner portion 142-1 to 142-4 of the housing 140.

Each of the four support members 220-1", 220-3", 220-5", and 220-6" includes a first upper spring 150-1", a third upper spring 150-3", Corresponding one of the fifth upper spring 150-5" and the sixth upper spring 150-6" may be connected to the circuit board 250, and the first position sensor 170-1 and the circuit board may be connected. 250 may be electrically connected.

One end of each of the two support members 220-2a and 220-2b may be connected to the first outer frame 151-2" of the second upper spring 150-2". For example, the first outer frame 151-2" of the second upper spring 150-2" may include two first coupling parts, and the two support members 220-2a and 220-2b Each end may be coupled to a corresponding one of the first coupling parts of the first outer frame 151-2".

One end of each of the other two support members 220 = 4a and 220-4b may be connected to the first outer frame 151-4" of the fourth upper spring 150-4". For example, the first outer frame 151-4" of the fourth upper spring 150-4" may include two first coupling parts, and each of the support members 220-4a and 220-4b One end may be coupled to a corresponding one of the first coupling parts of the first outer frame 151-4".

Also, the first coil 120 may be connected to the two lower springs 160-1 and 160-2. The other end of the support member 220-2a may be connected to the second outer frame of the first lower spring 160-1, the other end of the support member 220-2b may be connected to the circuit board 250, and the circuit It may be electrically connected to any corresponding one of the terminals of the board.

The other end of the support member 220-4a may be connected to the second outer frame of the second lower spring 160-2, the other end of the support member 220-4b may be connected to the circuit board 250, and the circuit It may be electrically connected to a corresponding one of the terminals of the substrate 250 .

That is, the first coil 120 extends through the support members 220-2a, 220-2b, 220-4a, and 220-4b and the upper springs 150-2" and 250-4" to the circuit board 250. It can be electrically connected to and can receive a driving signal directly from the circuit board 250 .

17 is an exploded perspective view of a camera module 200 according to an embodiment.

Referring to FIG. 17 , the camera module includes a lens barrel 400, a lens driving device 100, an adhesive member 710, a filter 610, a first holder 600, a second holder 800, an image sensor ( 810), a motion sensor 820, a controller 830, and a connector 840.

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

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

The adhesive member 710 may couple or attach the base 210 of the lens driving device 100 to the first holder 600 . The adhesive member 710 may serve to prevent foreign matter from entering the lens driving device 100 in addition to the above-described adhesive function.

For example, the adhesive member 710 may be an epoxy, a thermosetting adhesive, or an ultraviolet curable adhesive.

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

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

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

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

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

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

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

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

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

The controller 830 may be mounted on the second holder 800 and electrically connected to the second position sensor 240 and the second coil 230 of the lens driving device 100 . For example, the second holder 800 may be electrically connected to the circuit board 250 of the lens driving device 100, and the controller 830 mounted on the second holder 800 is controlled through the circuit board 250. It may be electrically connected to the 2 position sensor 240 and the second coil 230 .

The controller 830 may transmit a clock signal SCL, a data signal SDA, and power signals VCC and GND for I2C communication with the first position sensor 120, and the first position sensor 170 A clock signal (SCL) and a data signal (SDA) may be received from.

In addition, the control unit 830 may perform hand shake correction on the OIS movable unit of the lens driving apparatus 100 based on output signals provided from the second position sensor 240 of the lens driving apparatus 100. can control.

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

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

18 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 19 is a configuration diagram of the portable terminal shown in FIG. 18 .

18 and 19, 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. 18 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 be a camera 200 including the camera module 200 according to the embodiment shown in FIG. 17 .

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 180 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.

Instead of the controller 830 of the camera module 200, the controller 780 of the optical device 200A uses a clock signal SCL, a data signal SDA, and a power signal for I2C communication with the first position sensor 120. (VCC, GND) can be transmitted, and a clock signal SCL and data signal SDA can be received from the first position sensor 170 .

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)

housing;
a bobbin disposed within the housing;
a first coil disposed on the bobbin;
a first magnet disposed in the housing;
a first circuit board disposed on a side of the housing and including first to sixth pads;
a first position sensor disposed on the first circuit board and connected to the first to sixth pads;
an upper elastic member coupled to an upper portion of the housing and connected to the first to fourth pads; and
A lower elastic member coupled to a lower portion of the housing and connected to the fifth and sixth pads;
The first coil is electrically connected to the lower elastic member,
The first to fourth pads are positioned higher than the first position sensor, and the fifth and sixth pads are positioned lower than the first position sensor. According to claim 1,
The upper elastic member includes first to fourth upper springs,
Each of the first to fourth upper springs is coupled to a corresponding one of the first to fourth pads of the first circuit board. According to claim 1,
The lower elastic member includes a first lower spring coupled to one end of the first coil and a second lower spring coupled to the other end of the first coil. According to claim 2,
The housing includes first to fourth side parts and first to fourth corner parts,
The first to fourth upper springs are disposed on the first to fourth corner portions of the housing. According to claim 4,
a second circuit board disposed under the lower elastic member; and
And first to fourth support members electrically connecting the upper elastic member and the second circuit board,
Each of the first to fourth support members is disposed at a corresponding one of the first to fourth corners of the housing. According to claim 4,
The first magnet includes first to fourth magnet units,
Each of the first to fourth magnet units is disposed at a corresponding one of the first to fourth corners of the housing. According to claim 1,
The housing includes a first groove and a second groove,
the first circuit board is disposed in the first groove of the housing;
The first position sensor is disposed in the second groove of the housing. According to claim 1,
The first position sensor transmits signals for data communication to the first circuit board through the first to fourth pads of the first circuit board or receives signals for data communication from the first circuit board. lens drive unit. According to claim 5,
a second magnet disposed on the bobbin to correspond to the first position sensor;
and a second coil disposed on the second circuit board to correspond to the first magnet. According to claim 1,
The first and second pads are for supplying a power signal, the third pad is for supplying a clock signal, and the fourth pad is for supplying a data signal. According to claim 1,
The first position sensor is disposed on a first surface of the first circuit board facing the bobbin, and the first to fourth pads are disposed on a second surface of the circuit board opposite to the first surface. lens drive unit. According to claim 4,
One end of the first upper spring extends from the first corner portion to the first side portion and is coupled to the first pad, and one end of the second upper spring extends from the second corner portion to the first side portion, coupled with the second pad, one end of the third upper spring extending from the third corner portion to the first side portion and coupled with the third pad, and one end of the fourth upper spring portion extending from the third corner portion to the first side portion; A lens driving device that extends from the first side portion and is coupled to the fourth pad. According to claim 3,
The fifth pad is coupled to the first lower spring by solder or conductive adhesive, and the sixth pad is coupled to the second lower spring by solder or conductive adhesive. housing;
a bobbin disposed within the housing;
a first coil disposed on the bobbin;
a first magnet disposed in the housing;
a first circuit board disposed on a side of the housing and including first to sixth pads;
a first position sensor disposed on the first circuit board and electrically connected to the first to sixth pads;
an upper elastic member coupled to an upper portion of the housing and connected to the first to fourth pads; and
A lower elastic member coupled to a lower portion of the housing and connected to the fifth and sixth pads;
The upper elastic member includes first to fourth upper springs,
Each of the first to fourth upper springs is coupled to a corresponding one of the first to fourth pads,
The first circuit board includes an upper end and a lower end disposed below the upper end, and a side surface of the upper end protrudes relative to a side surface of the lower end;
The first to fourth pads are disposed on the upper portion and the fifth and sixth pads are disposed on the lower portion. According to claim 14,
A length of the upper part in the horizontal direction is greater than a length of the lower part in the horizontal direction. According to claim 14,
The first pad is disposed on one end of the upper end and the second pad is disposed on the other end of the upper end, and the third and fourth pads are disposed between the first and second pads,
The first and second pads are for supplying a power signal, the third pad is for supplying a clock signal, and the fourth pad is for supplying a data signal. According to claim 16,
the first position sensor is disposed on a first surface of the first circuit board;
The first to fourth pads are disposed on a second surface of the circuit board opposite to the first surface. According to claim 14,
The lower elastic member includes a first lower spring connected to one end of the first coil and a second lower spring connected to the other end of the first coil. According to claim 14,
The first position sensor supplies a driving signal to the first coil. housing;
a bobbin disposed within the housing;
a first coil disposed on the bobbin;
a first magnet disposed in the housing;
a first circuit board disposed on a side of the housing; and
A lens driving device including a first position sensor disposed on the first circuit board.

Images