KR20200070600A - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

The present invention provides a lens moving device capable of compensating for a tilt of an OIS operation part. According to embodiments of the present invention, the lens moving device comprises: a housing; a magnet including a first to a fourth magnet unit separated from each other to be arranged on the housing; a bobbin arranged in the housing; a first coil which is arranged on the bobbin and includes a first to a fourth coil unit correspondingly arranged on the first to fourth magnet units; a printed circuit board which is arranged on the housing and includes a first to an eighth terminal; a position sensor arranged on the printed circuit board; a sensing magnet which is arranged on the bobbin and faces the position sensor; an upper elastic member coupled to an upper portion of the housing and an upper portion of the bobbin; a lower elastic member coupled to a lower portion of the housing and a lower portion of the bobbin; and a support member connected to the upper elastic member. Each of the first to fourth coil units is electrically connected to one corresponding terminal among the first to fourth terminals of the printed circuit board. The position sensor outputs a first to a fourth driving signal. Each of the first to fourth driving signals is supplied to one corresponding terminal among the first to fourth terminals of the printed circuit board.

Description

Lens driving device, and camera module and optical device including same{A LENS MOVING UNIT, AND CAMERA MODULE AND OPTICAL INSTRUMENT INCLUDING THE SAME}

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

As the camera module for ultra-small and low power consumption is difficult to apply the technology of Voice Coil Motor (VCM) used in the existing general camera module, research on this has been actively conducted.

Demand and production of electronic products such as smartphones and mobile phones equipped with cameras are increasing. Mobile phone cameras are trending toward high pixel size and miniaturization, and accordingly, actuators are also becoming smaller, larger in diameter, and multi-functional. In order to realize a high-resolution camera for mobile phones, additional functions such as performance improvement and auto focusing, shutter shake improvement, and zoom function of the mobile phone camera are required.

The embodiment provides a lens driving device capable of compensating for tilt of the OIS movable part generated according to the deflection of the OIS movable part, and a camera module and optical device including the same.

The lens driving apparatus according to the embodiment includes a housing; A magnet including first to fourth magnet units spaced apart from each other in the housing; A bobbin disposed in the housing; A first coil disposed on the bobbin and including first to fourth coil units disposed corresponding to the first to fourth magnet units; A circuit board disposed on the housing and including first to eighth terminals; A position sensor disposed on the circuit board; A sensing magnet disposed on the bobbin and facing the position sensor; An upper elastic member coupled with an upper portion of the bobbin and an upper portion of the housing; A lower elastic member coupled with a lower portion of the bobbin and a lower portion of the housing; And a supporting member connected to the upper elastic member, each of the first to fourth coil units being electrically connected to any one of the first to fourth terminals of the circuit board, and to the position. The sensor outputs first to fourth driving signals, and each of the first to fourth driving signals is provided to a corresponding one of the first to fourth terminals of the circuit board.

The lower elastic member may include first to fourth lower elastic units, and each of the first to fourth coil units may be coupled to a corresponding one of the first to fourth lower elastic units in the circuit. It may be electrically connected to any one of the first to fourth terminals of the substrate.

The upper elastic member may include first to fourth upper elastic units, and each of the first to fourth upper elastic units is coupled to a corresponding one of the fifth to eight terminals of the circuit board The position sensor may be provided with a first power signal, a second power signal, a clock signal, and a data signal through the fifth to eighth terminals of the circuit board.

The upper elastic member may include first to fourth upper elastic units, the lower elastic member may include first to fourth lower elastic units, and each of the first to fourth upper elastic units may be One of the first to fourth coil units may be coupled to any one of the fifth to eighth terminals of the circuit board, and one end of each of the first to fourth coil units may correspond to one of the first to fourth lower elastic units. It may be coupled to one, and the other end of each of the first to fourth coil units may be coupled to any one of the first to fourth upper elastic units.

The position sensor may be provided with a first power signal, a second power signal, a clock signal, and a data signal through the fifth to eighth terminals of the circuit board, and among the first to fourth upper elastic units The one to which the other end of each of the first to fourth coil units is coupled may be combined with any one of the fifth to eighth terminals of the circuit board to which the first power signal is provided.

The voltage of the first power signal may be a ground voltage, and the voltage of the second power signal may be a predetermined voltage.

The support member may include first to fourth support members, and each of the support members may be connected to a corresponding one of the first to fourth upper elastic units.

The first to fourth magnet units may be disposed in first to fourth corner portions of the housing, and the circuit board and the position sensor may be disposed between the first corner portion and the second corner portion of the housing. have.

Each of the first to fourth magnet units includes a first magnet portion including a first N pole and a first S pole, a second magnet portion including a second N pole and a second S pole, and the first magnet It may include a first partition wall located between the portion and the second magnet portion.

Each of the first to fourth coil units has a coil block or coil ring shape wound in a rotational direction around a reference straight line, the reference straight line being perpendicular to the optical axis and the first to fourth coil units at the optical axis It may be a straight line parallel to the direction toward the outer surface of the bobbin is disposed one of the corresponding.

At least one of the sizes of the first to fourth driving signals may be different.

The lens driving apparatus may include a second coil facing the magnet in the optical axis direction; And a second circuit board electrically connected to the support member.

The embodiment can compensate for the tilt of the OIS moving part generated due to the deflection of the OIS moving part, thereby preventing the resolution of the camera module and the optical device from deteriorating.

1 is an exploded perspective view of a lens driving apparatus according to an embodiment.
FIG. 2 is a perspective view showing a combination of the lens driving device excluding the cover member of FIG. 1.
3A is a perspective view of the bobbin, the second magnet, and the third magnet shown in FIG. 1.
3b shows a first coil coupled to a bobbin.
FIG. 4A shows a perspective view of the housing, circuit board, first position sensor, and capacitor shown in FIG. 1.
4B shows a combined perspective view of a housing, a first magnet, a circuit board, a first position sensor, and a capacitor.
4C is a perspective view of the magnets.
5 is a cross-sectional view of the lens driving device shown in FIG. 2 in the AB direction.
6A is a cross-sectional view of the lens driving apparatus shown in FIG. 2 in the CD direction.
6B is a cross-sectional view of the lens driving device shown in FIG. 2 in the EF direction.
7A is an enlarged view of the circuit board and the first position sensor.
7B is a configuration diagram according to an embodiment of the first position sensor illustrated in FIG. 7A.
8 shows the upper elastic member shown in FIG. 1.
9 shows the lower elastic member shown in FIG. 1.
10 shows a perspective view of the upper elastic member, the lower elastic member, the base, the supporting member, the second coil, and the circuit board.
11 shows the coupling between the first to fourth terminals of the circuit board and the upper elastic units.
12 is a bottom view of the fifth and sixth terminals of the circuit board and the lower elastic unit.
13 shows an exploded perspective view of the second coil, circuit board, base, and second position sensor.
14 is a bottom view of the housing, the first magnet, the lower elastic member, and the circuit board.
15 shows the arrangement of the first magnet, second and third magnets, first position sensor, capacitor, and circuit board.
FIG. 16 shows the side view of FIG. 15.
17 is a view for explaining the arrangement of the first position sensor, the second magnet, and the coil units.
18 shows electromagnetic forces between coil units and magnet units according to driving signals.
19 is an exploded perspective view of a camera module according to an embodiment.
20 is a perspective view of a portable terminal according to an embodiment.
21 shows a configuration diagram of the portable terminal illustrated in FIG. 20.

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

However, the technical spirit of the present invention is not limited to some embodiments described, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of its components between embodiments are selectively selected. It can be used by bonding and substitution.

In addition, the terms used in the embodiments of the present invention (including technical and scientific terms), unless explicitly defined and described, means that can be generally understood by those skilled in the art to which the present invention pertains It can be interpreted as, and commonly used terms, such as predefined terms, may interpret the meaning in consideration of the contextual meaning of the related technology.

In addition, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention. In the present specification, a singular form may also include a plural form unless specifically stated in the phrase, and when described as "at least one (or more than one) of A and B, C", A, B, and C may be combined. It can include one or more of all possible combinations.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the term is not limited to the nature, order, or order of the component.

And, when a component is described as being'connected','coupled' or'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also to the component It may also include the case of'connected','coupled' or'connected' by another component between the other components. Further, when described as being formed or disposed in the "top (top) or bottom (bottom)" of each component, the top (top) or bottom (bottom) is one as well as when the two components are in direct contact with each other. It also includes a case in which another component described above is formed or disposed between two components. In addition, when expressed as "up (up) or down (down)", it may include the meaning of the downward direction as well as the upward direction based on one component.

Hereinafter, a lens driving apparatus according to an exemplary embodiment and a camera module and optical devices including the same will be described with reference to the accompanying drawings. For convenience of description, the Cartesian coordinate system (x, y, z) will be used for explanation, but other coordinate systems may be used for explanation, and the embodiment is not limited thereto. In each drawing, the x-axis and the y-axis mean a direction perpendicular to the z-axis in the optical axis direction, the z-axis direction in the optical axis direction is referred to as a'first direction', and the x-axis direction is referred to as a'second direction', y The axial direction can be referred to as a'third direction'.

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

In addition, the lens driving apparatus according to the embodiment may perform the'image stabilization function'. Here, the image stabilization function means that it is possible to prevent the outline of the photographed image from being clearly formed due to vibration caused by the user's image shaking when photographing a still image.

Hereinafter, the lens driving apparatus may be referred to as a lens driving unit, a VCM (Voice Coil Motor), or an actuator, and hereinafter, the term "coil" may be expressed by replacing a coil unit, The term "elastic member" can be expressed by replacing with an elastic unit, or a spring, and the supporting member can be expressed by replacing with a wire, a spring, or the like. Also, the term "terminal" may be expressed by replacing a pad, an electrode, a conductive layer, or a bonding portion.

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

1 and 2, the lens driving apparatus 100 includes a bobbin (bobbin, 110), a first coil 120, a first magnet (magnet, 130), a housing 140, and an upper elastic member 150 , A lower elastic member 160, a first position sensor 170, a second magnet 180, a circuit board 190, a support member 220, and a second coil 230.

In addition, in order to perform the feedback image stabilization function, the lens driving apparatus 100 may further include a second position sensor 240.

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

In addition, the lens driving apparatus 100 may further include a capacitor 195 mounted on the circuit board 190.

First, the bobbin 110 will be described.

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

FIG. 3A shows a perspective view of the bobbin 110, the second magnet 180 and the third magnet 185 shown in FIG. 1, and FIG. 3B shows the first coil 120 coupled to the bobbin 110.

3A and 3B, the bobbin 110 may have an opening for mounting a lens or lens barrel. For example, for example, the opening of the bobbin 110 may be a through hole penetrating the bobbin 110 in the optical axis direction, and 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 to the opening of the bobbin 110, but is not limited thereto. In another embodiment, a lens barrel for mounting or coupling at least one lens may be coupled or mounted to the opening of the bobbin 110. have. The lens or lens barrel may be coupled in various ways to the inner circumferential surface (or inner surface) of the bobbin 110.

The bobbin 110 may include first side portions 110b1-1 to 110b1-4 spaced from each other and second side portions 110b2-1 to 110b2-4 spaced from each other, and the second side portions 110b2. Each of -1 to 110b2-4) may connect two adjacent first sides. Hereinafter, the term “side” of the bobbin 110 may be expressed by substituting the term “outside” or “side” of the bobbin 110.

For example, the length of each of the first sides 110b1-1 to 110b1-4 of the bobbin 110 in the horizontal or transverse direction is the horizontal or horizontal direction of each of the second sides 110b2-1 to 110b2-4. It may be different from the length.

The bobbin 110 may have a protrusion 115 provided on the outer surface.

For example, the protrusion 115 of the bobbin 110 may be disposed on the outer surface of the second side portions 110b2-1 to 110b2-4 of the bobbin 110, but is not limited thereto.

The protrusion 115 of the bobbin 110 passes through the center of the opening of the bobbin 110 and may protrude in a direction parallel to a straight line perpendicular to the optical axis, but is not limited thereto.

The protrusion 115 of the bobbin 110 may correspond to or be opposed to the groove portion 25a of the housing 140, may be inserted or disposed in the groove portion 25a of the housing 140, and the bobbin 110 may be optical axis. It can be suppressed or prevented from rotating over a certain range around the.

In addition, even if the protrusion 115 of the bobbin 110 moves beyond the range defined in the optical axis direction (for example, the direction from the upper elastic member 150 to the lower elastic member 160) by an external impact or the like. , The lower surface of the bobbin 110 may act as a stopper for preventing or preventing the base 210, the second coil 230, or the circuit board 250 from directly colliding.

A first escape groove 112a for avoiding spatial interference with the first frame connecting portion 153 of the upper elastic member 150 may be provided on the upper surface of the bobbin 110. For example, the first escape groove 112a may be disposed on the second side portions 110b2-1 to 110b2-4 of the bobbin 110, but is not limited thereto.

A guide portion 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 FIG. 3A, the guide portion 111 of the bobbin 110 is connected to the first escape groove 112a to guide the path through which the frame connection portion 153 of the upper elastic member 150 passes. Can be deployed. For example, the guide part 111 may protrude in the optical axis direction from the bottom surface of the first escape groove 112a.

The bobbin 110 may include a stopper 116 protruding from the top surface.

The stopper 116 of the bobbin 110 is the upper surface of the bobbin 110 even if the bobbin 110 moves beyond a prescribed range due to external impact, etc., when the bobbin 110 moves in the first direction for an autofocusing function The cover member 300 may serve to prevent direct collision with the inside of the top plate.

The bobbin 110 may include a first coupling portion 113 to be coupled and fixed to the upper elastic member 150. For example, in FIG. 3A, the first coupling portion 113 of the bobbin 110 is in a protruding shape, but is not limited thereto. In other embodiments, the first coupling portion 113 of the bobbin 110 may have a groove or planar shape. Can be.

In addition, the bobbin 110 may include a second coupling portion 117 to be coupled and fixed to the lower elastic member 160, the second coupling portion 117 of the bobbin 110 in Figure 3b is a projection form , It is not limited thereto, and in another embodiment, the second coupling portion of the bobbin 110 may have a groove or a flat shape.

The outer surface of the bobbin 110 may be provided with a seating groove 105 in which the first coil 120 is seated, inserted, or disposed, but is not limited thereto. In another embodiment, the bobbin 110 instead of the seating groove 105 may include a protrusion protruding from the outer surface of the second side portions 110b2-1 to 110b2-4, and the coil of the first coil 120 The units 120-1 to 120-4 may be coupled to the projections of the bobbin.

For example, the seating groove 105 of the bobbin 110 may be a groove structure recessed from the outer surface of the second side (110b2-1 to 110b2-4) of the bobbin 110, the coil of the first coil 120 Units 120-1 to 120-4 may have a shape in which they can be arranged.

Also, when connecting the first to fourth coil units 120-1 to 120-4 of the first coil 120 with the lower elastic units 160-1 to 160-4, the departure of the first coil 120 In order to suppress and guide both ends of the first coil 120, at least one guide groove 116a or 116b may be provided on the lower surfaces of the first sides or the second sides of the bobbin 110.

In addition, a seating groove 180a in which the second magnet 180 is seated, inserted, fixed, or disposed may be provided on an outer surface of the bobbin 110. For example, it may be formed on the outer surface of the first side portion 110b1-1 of the bobbin 110 facing the first side portion 141-1 of the housing 140 of the seating groove 180a.

The seating groove 180a of the bobbin 110 may have a structure recessed from the outer surface of the bobbin 110, and may have an opening that is open to at least one of the upper or lower surfaces of the bobbin 110, but is not limited thereto. .

In addition, a seating groove 185a for seating, inserting, fixing, or arranging the third magnet 185 may be provided on the outer surface of the bobbin 110.

The seating groove 185a of the bobbin 110 may be a recessed structure from the outer surface of the bobbin 110, and may have an opening that is open to at least one of the upper or lower surfaces of the bobbin 110, but is not limited thereto. .

For example, the seating grooves 180a and 185a of the bobbin 110 may be disposed on two first sides facing each other of the bobbin 110 or two first sides positioned opposite to each other.

The second magnet 180 and the third magnet 185 are disposed in the seating grooves 180a and 185a provided on the two first sides of the bobbin 110 located on opposite sides of the bobbin 110, so that the second magnet 180 It is possible to balance the weight of the magnet 180 and the third magnet 185, the effect of AF driving force due to the magnetic field interference between the first magnet 130 and the second magnet 180 and the first magnet 130 and the first The influence of the AF driving force due to the magnetic field interference between the three magnets 185 may be canceled, and accordingly, the embodiment may improve the accuracy of AF (Auto Focusing) driving.

A thread 11 for coupling with a lens or a lens barrel may be provided on the inner peripheral surface of the bobbin 110. While the bobbin 110 is fixed by a jig or the like, a thread 11 may be formed on the inner circumferential surface of the bobbin 110. On the upper surface of the bobbin 110, jigs fixing grooves 15a and 15b ) May be provided. For example, the jig fixing grooves 15a and 15b may be provided on the upper surfaces of two first side parts (or two second side parts) of the bobbin 110 located on opposite sides, but is not limited thereto. The jig fixing grooves 15a and 15b may function as a foreign material collecting part for collecting foreign materials.

Next, the first coil 120 will be described.

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

The first coil 120 may include a plurality of coil units 120-1 to 120-4.

For example, the first coil 120 may include first to fourth coil units 120-1 to 120-4.

The first to fourth coil units 120-1 to 120-4 may be individually driven.

Compared to the case where the coils are disposed or wound around the outer circumferential surfaces of the first and second sides of the bobbin 110, the coil section is disposed because the coil units are disposed on the second sides of the bobbin 110. This is reduced, the resistance of the coil is reduced, the current or power consumed in the coil may be reduced, and the space utilization of the first sides of the bobbin 110 where the coil is not disposed may be increased, thereby increasing the degree of freedom of design. Can be.

The AF moving unit (eg, bobbin (eg, bobbin) by the interaction between the first to fourth coil units (120-1 to 120-4) and the corresponding first to fourth magnet units (130-1 to 130-4) 110)) may move in the optical axis (OA) direction.

Each of the first to fourth coil units 120-1 to 120-4 may be disposed on a corresponding one of the second sides 110b2-1 to 110b2-4 of the bobbin 110.

For example, the first to fourth coil units 120-1 to 120-4 are different from the side surfaces (or outer surfaces) of the bobbin 110 on which the second and third magnets 180 and 185 are disposed. It may be disposed on the field (or the outer surface).

For example, the first to fourth coil units 120-1 to 120-4 may be disposed under the protrusion 115 of the bobbin 110, but are not limited thereto.

For example, the first to fourth coil units 120-1 to 120-4 may be disposed in the seating groove 105 formed in the second sides 110b2-1 to 110b2-4 of the bobbin 110. , The second magnet 180 may be inserted or disposed in the seating groove 180a formed in the first side portion 110b-1 of the bobbin 110, and the third magnet 185 is the first of the bobbin 110. It may be inserted or disposed in the seating groove (185a) formed in the side (10b-2).

For example, each of the second magnet 180 and the third magnet 185 disposed on the bobbin 110 does not overlap with the first to fourth coil units 120-1 to 120-4 in the optical axis (OA) direction. It may not.

For example, each of the second magnet 180 and the third magnet 185 overlaps the first to fourth coil units 120-1 to 120-4 in a direction perpendicular to the optical axis and parallel to a straight line passing through the optical axis. It may not be.

Also, for example, the second and third magnets 180 and 185 and the first to fourth coil units 120-1 to 120-4 may overlap one plane perpendicular to the optical axis OA.

In this way, the second magnet 180 and the third magnet 185 are side portions (or outer sides) of bobbins different from the side or outer side of the bobbin 110 in which the coil units 120-1 to 120-4 are disposed. ).

Each of the first to fourth coil units 120-1 to 120-4 may have a closed loop shape, a coil block, or a coil ring shape. For example, each of the coil units 120-1, 120-2, 120-3, and 120-4 may have a coil ring shape wound in a rotational direction around a reference straight line.

Here, the reference straight line may be a straight line perpendicular to the outer side of the second side of the bobbin 110 in which the coil units 120-1, 120-2, 120-3, 120-4 are disposed, perpendicular to the optical axis OA and passing through the optical axis. Alternatively, the reference straight line may be a straight line perpendicular to the optical axis OA and parallel to the direction toward the outer surface (or the second side of the bobbin) of the bobbin 110 in which the coil unit is disposed at the optical axis OA.

A separate power source or a separate driving signal may be provided to each of the first to fourth coil units 120-1 to 120-4 of the first coil 120.

For example, the first driving signal may be provided to the first coil unit 120-1, the second driving signal may be provided to the second coil unit 120-2, and the third coil unit 120-3 may be provided. ) May be provided with a third driving signal, and a fourth driving signal may be provided with the fourth coil unit 120-4.

Each of the first to fourth driving signals may be a DC signal or an AC signal, or may include a DC signal and an AC signal, and may be in the form of voltage or current.

When a driving signal (eg, a driving current) is supplied to each of the first to fourth coil units 120-1 to 120-4, the first to fourth coil units 120-1 to 120-4 and the same Electromagnetic force may be formed through the interaction between the corresponding first to fourth magnet units 130-1 to 130-4, and the AF movable unit (eg, bobbin 110) may have a first direction ( For example, it may be moved in the z-axis direction or the AF movable unit may be tilted.

In the initial position of the AF moving part, the AF moving part (for example, the bobbin 110) may be moved in the upper direction or the lower direction, and this is called bidirectional driving of the AF moving part. Alternatively, in the initial position of the AF movable unit, the AF movable unit (eg, bobbin 110) may be moved in an upward direction, which is referred to as unidirectional driving of the AF movable unit.

In the initial position of the AF moving part, in the direction perpendicular to the optical axis OA and parallel to a straight line passing through the optical axis, the first coil 120 is disposed to face or overlap with the first magnet 130 disposed in the housing 140. Can be.

For example, the AF movable unit may include bobbin 110 and components coupled to bobbin 110 (eg, first coil 120, second and third magnets 180, 185 ).

And the initial position of the AF moving part is the initial position of the AF moving part without applying power 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 moving part. It may be a position where the movable part is placed.

In addition, the initial position of the bobbin 110 is a position where the AF moving part is placed when gravity acts from the bobbin 110 to the base 210, or vice versa, when gravity acts from the base 210 to the bobbin 110. Can be

Next, the second and third magnets 180 and 185 will be described.

The second magnet 180 may be expressed as a “sensing magnet” in that the first position sensor 170 provides a magnetic field for sensing, and the third magnet 185 is the sensing magnet 180 It can also be expressed as a balancing magnet in that it compensates for the magnetic field effect of and is for balancing the weight with the sensing magnet 180. In this case, the first to fourth magnet units 130-1 to 130-4 may be expressed by replacing the first to fourth magnets.

The second magnet 180 is disposed in the seating groove 180a of the bobbin 110 and may be disposed to face the first position sensor 170.

A portion of one surface of the second magnet 180 facing the first position sensor 170 may be exposed from the seating groove 180a, but is not limited thereto. In another embodiment, the first position sensor 170 ), a part of any one surface of the second magnet 180 facing each other may not be exposed from the seating groove 180a.

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

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

Each of the second and third magnets 180 and 185 may be an anode magnetizing magnet or a four-pole magnet including two N poles and two S poles, but is not limited thereto. For example, in another embodiment, each of the second and third magnets 180 and 185 may be a single-pole magnetized magnet having one N pole and one S pole.

Each of the second and third magnets 180 and 185 is disposed between the first magnet part 17a, the second magnet part 17b, and the first magnet part 17a and the second magnet part 17b. It may include a partition wall (17c). Here, the partition wall 17c may be expressed by replacing it with a "non-magnetic partition wall".

The first magnet portion 17a may include an N pole, an S pole, and a first boundary portion between the N pole and the S pole. The first boundary portion may include a section having substantially no polarity as a portion having substantially no magnetism, and may be a portion naturally generated to form a magnet composed of one N-pole and one S-pole.

The second magnet portion 17b may include an N pole, an S pole, and a second interface between the N pole and the S pole. The second boundary portion may include a region having little polarity as a portion having substantially no magnetism, and may be a portion naturally generated to form a magnet composed of one N-pole and one S-pole.

The partition 17c separates or isolates the first magnet part 17a and the second magnet part 17b, and may be a part having substantially no magnetism and having little polarity. For example, the partition wall may be a nonmagnetic material, air, or the like. The non-magnetic bulkhead may be expressed as a “Neutral Zone” or a “neutral zone”.

The partition wall 17c is an artificially formed portion when the first magnet portion 17a and the second magnet portion 17b are magnetized, and the width of the partition wall 17c is the width of the first border portion (or the second border portion) Width). Here, the width of the partition wall 17c may be a length in a direction from the first magnet portion 17a to the second magnet portion 17b. The width of the first boundary portion (or the second boundary portion) may be the length of the first boundary portion in the N-pole direction of each of the first and second magnet portions 17a and 17b.

The second magnet 180 may move in the optical axis direction together with the bobbin 110, and the first position sensor 170 may sense the magnetic field strength or magnetic force of the second magnet 180 moving in the optical axis direction, , An output signal (eg, output voltage) according to the sensed result may be output.

For example, the intensity or magnetic force of the magnetic field sensed by the first position sensor 170 may change according to the displacement of the bobbin 110 in the optical axis direction, and the first position sensor 170 is proportional to the sensed intensity of the magnetic field Output signal, and displacement of the bobbin 110 in the optical axis direction may be detected using the output signal of the first position sensor 170.

Since the second magnet 180 is implemented as a positive magnetization magnet, magnetic field interference between the second magnet 180 and the first magnet 130 may be reduced, and thereby, the tilt of the bobbin 110 due to magnetic field interference. Can be reduced, and AF feedback malfunction can be prevented. In addition, when the lens driving device according to the embodiment is mounted on a dual camera having two or more lens driving devices, magnetic field outflow is reduced to the outside of the lens driving device, thereby reducing magnetic field interference between adjacent lens driving devices. Due to this, errors in the AF operation and/or the OIS operation due to magnetic field interference of adjacent lens driving devices mounted in the dual camera can be prevented.

Next, the housing 140 will be described.

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

4A shows a perspective view of the housing 140, the circuit board 190, the first position sensor 170, and the capacitor 195 shown in FIG. 1, and FIG. 4B shows the housing 140 and the first magnet ( 130), a circuit board 190, a first position sensor 170, and a combined perspective view of the capacitor 195, and FIG. 4C is a perspective view of the magnets 130-1 to 130-4.

4A to 4C, the housing 140 may have a hollow pillar shape as a whole. For example, the housing 140 may have a polygonal (eg, square or octagonal) or circular opening, and the opening of the housing 140 may be in the form of a through hole penetrating the housing 140 in the optical axis direction.

The housing 140 may include a plurality of side portions 141-1 to 141-4 and corner portions 142-1 to 142-4.

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

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, 141 -4 and 141-1), and may be connected to the sides (141-1 to 141-4).

For example, the corner portions 142-1 to 142-4 may be located at a corner or corner 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, and may be five or more.

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

For example, the side portions 141-1 to 141-4 of the housing 140 may correspond to the first side portions 110b1-1 to 110b1-4 of the bobbin 110, and the corner portions of the housing 140 ( 142-1 to 142-4) may correspond to or face the second sides 110b2-1 to 110b2-4 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.

For example, the corners or corner portions 142-1 to 142-4 of the housing 140 may be provided with a seating portion 141a or accommodating portion for accommodating the magnet 130.

The seating portion 141a of the housing 140 may be provided below or below 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 on the inner side of the bottom or bottom of each of the four corner portions 142-1 to 142-4.

The seating portion 141a of the housing 140 may be formed of a groove having a shape corresponding to the first magnet 130, for example, a groove, but is not limited thereto.

For example, a first opening may be formed on a side surface of the seating portion 141a of the housing 140 facing the first coil 120, and the seating portion of the housing 140 facing the second coil 230 ( A second opening may be formed on the lower surface of 141a), which is to facilitate mounting of the first magnet 130.

For example, the first surface 11a of the first magnet 130 fixed or disposed on the seating portion 141a of the housing 140 may be exposed through the first opening of the seating portion 141a. In addition, the lower surface 11c of the first magnet 130 fixed or disposed on the seating portion 141a of the housing 140 may be exposed through the second opening of the seating portion 141a.

The housing 140 may include an escape groove 41 provided on the upper surfaces of the corner portions to avoid spatial interference with the first frame connection portion 153 of the upper elastic member 150.

For example, the escape groove 41 of the housing 140 may be recessed from the upper surface of the housing 140, and is located closer to the center of the housing 140 than the stopper 145 or the adhesive injection hole 147 can do. For example, with respect to the stopper 145 of the housing 140, the escape groove 41 may be located inside, which is the center direction of the housing 140, and adhesive injection holes 146a and 146b may be located outside the opposite side. Can be located.

In the corner portions 142-1 to 142-4 of the housing 140, a groove portion 25a may be provided corresponding to or opposed to the protrusion portion 115 of the bobbin 110. The groove portion 25a of the housing 140 may be located on the seating portion 141a of the housing 140. For example, the groove portion 25a of the housing 140 may be formed on the bottom surface of the escape groove 41. For example, the bottom surface of the groove portion 25a may be positioned lower than the bottom surface of the escape groove 41, and the seating groove 141a of the housing 140 may be positioned lower than the bottom surface of the escape groove 41.

The first magnet 130 may be fixed to the seating portion 141a by an adhesive, but is not limited thereto.

For example, the corner portions 142-1 to 142-4 of the housing 140 may be provided with at least one adhesive injection hole 146a, 146b for injecting the adhesive. The at least one adhesive injection hole 146a, 146b may have a shape recessed from the upper surfaces of the corner portions 142-1 to 142-4 of the housing 140.

At least one adhesive injection hole (146a, 146b) may include a through hole penetrating the corner portions (142-1 to 142-4), the adhesive injection hole (146a, 146b) is a seating groove of the housing 140 It may be connected or communicated with (141a), it may expose at least a portion of the first magnet 130 (eg, at least a portion of the top surface of the magnet 130). By exposing the adhesive injection holes 146a and 146b to at least a portion of the first magnet 130 (eg, at least a portion of the top surface of the magnet 130), the adhesive can be well applied to the first magnet 130, Due to this, the fixing force between the first magnet 130 and the housing 140 may be improved.

The housing 140 may include at least one stopper 147a protruding from the outer surfaces of the side parts 141-1 to 141-4, and the at least one stopper 147a has a housing 140 with an optical axis. It can be prevented from colliding with the side plate of the cover member 300 when moving in the vertical 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.

The housing 140 includes a mounting groove 14a (or seating groove) for receiving the circuit board 190, a mounting groove 14b (or seating groove) for receiving the first position sensor 170, and a capacitor ( 195) may be provided with a mounting groove (14c) (or seating groove) for receiving.

The mounting groove 14a of the housing 140 may be provided on the top or top of any one of the side parts 141-1 to 141-4 of the housing 140 (eg, 141-1). In addition, the mounting groove 14a may extend to the first and second corner portions 142-1 and 142-2 adjacent to the first side portion 141-1 of the housing 140.

In order to facilitate the mounting of the circuit board 190, the mounting groove 14a of the housing 140 may be in the form of a groove with an open top and side and bottom openings, and an opening that opens inside the housing 140. Can have The shape of the mounting groove 14a of the housing 140 may have a shape corresponding to or coinciding with the shape of the circuit board 190.

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

The mounting groove 14c of the housing 140 may be disposed on one side of the mounting groove 14b, and between the mounting groove 14b and the mounting groove 14c, a capacitor 195 and a first position sensor 170 are provided. Protrusions or protrusions for separating or spacing may be provided. This is to reduce the length of the path for the electrical connection of both by placing the capacitor 195 and the position sensor 170 adjacently, thereby reducing noise due to an increase in the path.

The capacitor 195 may be disposed or mounted on the first surface 19b of the circuit board 190.

The capacitor 195 may be in the form of a chip, and the chip may include a first terminal corresponding to one end of the capacitor 195 and a second terminal corresponding to the other end of the capacitor 195. Capacitor 195 may be expressed by replacing it with a “capacitive element” or a capacitor.

In another embodiment, the capacitor may be implemented to be included in the circuit board 190. For example, the circuit board 190 may include a capacitor including a first conductive layer, a second conductive layer, and an insulating layer (eg, a dielectric layer) disposed between the first conductive layer and the second conductive layer.

The capacitor 195 may be electrically connected in parallel to two terminals of the circuit board 190 for providing power (or driving signal) to the position sensor 170 from the outside.

Alternatively, the capacitor 195 may be electrically connected in parallel to the two terminals of the first position sensor 170 that is electrically connected to the two terminals of the circuit board 190.

For example, one end of the capacitor 195 (or the first terminal of the capacitor chip) may be electrically connected to any one terminal of the circuit board 190, and the other end of the capacitor 195 (or the terminal of the capacitor chip) may be a circuit board It may be electrically connected to any other terminal of (190).

The capacitor 195 is electrically connected in parallel to two terminals of the circuit board 190 on which the power signals GND and VDD are provided, thereby providing power signals GND and VDD provided to the first position sensor 170 from the outside. ) Can serve as a smoothing circuit that removes the ripple component, thereby providing a stable and constant power signal to the first position sensor 170.

The capacitor 195 may protect the first position sensor 170 from noise, ESD, etc. of high-frequency components flowing from the outside.

In addition, the capacitor 195 can prevent overcurrent due to noise or ESD of a high-frequency component flowing from the outside to be applied to the first position sensor 170, and the output of the first position sensor 170 due to the overcurrent It is possible to prevent a phenomenon in which a calibration value or a coordinate code value for the displacement of the bobbin 110 obtained based on the signal is reset.

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

For example, the circuit board 190 may be fixed to the mounting groove 14a of the housing 140 by an adhesive member. For example, the adhesive member may be an epoxy or double-sided tape, but is not limited thereto.

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

Corners 142-1 to 142-4 of the housing 140 may be provided with holes 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 the upper portion of the corner portions 142-1 to 142-4.

In another embodiment, the hole provided in the corner portions 142-1 to 142-4 of the housing 140 may be a structure recessed from the outer surface of the corner portion of the housing 140, and at least a portion of the hole is an outer surface of the corner portion It can also be opened. 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 147 may be gradually increased from the upper surface of the housing 140 to the lower surface direction, but is not limited thereto. In another embodiment, the hole 147 has a diameter This may be constant.

Not only to form a path through which the support members 220-1 to 220-4 pass, but also the corner portions 142-1 to 142-4 of the support members 220-1 to 220-4 and the housing 140 An escape groove 148a may be provided on the outer surface 148 of the corner portions 142-1 to 142-4 to avoid spatial interference of the liver. The escape groove 148a may be connected to the hole 147 of the housing 140, and may have a hemispherical or semi-elliptical shape, but is not limited thereto. The lower or lower portion of the escape groove 148a may be connected to the lower surface of the housing 140.

For example, the diameter of the escape groove 148a may be gradually reduced from the top to the bottom, but is not limited thereto.

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

For example, the stopper 145 may be disposed on each of the upper surfaces of the corner portions 142-1 to 142-4 of the housing 140, but is not limited thereto.

In addition, in order to prevent the lower surface of the housing 140 from colliding with the base 210 and/or the circuit board 250, a stopper (not shown) provided on the lower, lower, or lower surfaces of the housing 140 is further provided. You may.

In addition, a guide protrusion 146 may be provided at a corner of the upper surface of the corner portions 142-1 to 142-4 of the housing 140 to prevent the damper from overflowing.

For example, the hole 147 of the housing 140 may be located between the corner of the upper surface of the corner portions 142-1 to 142-4 of the housing 140 (eg, the guide protrusion 146) and the stopper 145. Can be.

At least one first coupling portion 143 coupled to the first outer frame 152 of the upper elastic member 150 may be provided on the upper, upper, or upper surface of the housing 140.

The first coupling portion 143 of the housing 140 may be disposed on at least one of the side portions 141-1 to 141-4 or the corner portions 142-1 to 142-4 of the housing 140.

The lower, lower, or lower surface of the housing 140 may be provided with a second coupling portion that is coupled and fixed to the second outer frame 162 of the lower elastic member 160.

For example, the first coupling portion 143 of the housing 140 may have a protrusion shape, and the second coupling portion may have a flat shape, but is not limited thereto. In other embodiments, the first and first portions of the housing 140 may be used. Each of the two coupling portions may have a projection, groove, or planar shape.

For example, the first coupling portion 143 of the housing 140 and the hole 152a of the first outer frame 152 of the upper elastic member 150 are coupled using an adhesive member (eg, solder) or heat fusion. The second coupling portion of the housing 140 and the hole 162a of the second outer frame 162 of the lower elastic member 160 may be combined.

Side portions 141-1 of the housing 140 to avoid spatial interference between the second outer frame 162-1 to 162-3 of the lower elastic member 160 and the portion where the second frame connecting portion 163 meets An escape groove 44a may be provided on at least one of the lower surfaces.

Next, the first magnet 130 will be described.

The first magnet 130 may be disposed on at least one of the corners (or corner portions 142-1 to 142-4) of the housing 140. For example, the first magnet 130 may be disposed of the housing 140. Magnets or magnet units 130-1 to 130-4 disposed at corners (or corner portions 142-1 to 142-4) may be included.

At the initial position of the AF moving part, each of the magnet units 130-1 to 130-4 is perpendicular to the optical axis OA and corresponds to the first to fourth coil units in a direction parallel to the straight line passing through the optical axis OA. Any one and at least a portion may overlap.

For example, each of the magnet units 130-1 to 130-4 may be inserted or disposed in any one of the corresponding seating portions 141a of the corner portions 141-1 to 141-4 of the housing 140. .

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

The shape of each of the magnet units 130-1 to 130-4 may be a polyhedron shape that is easy to be seated on any one of the corresponding corner portions 141-1 to 141-4 of the housing 140.

For example, the area of the first surface 11a (see FIG. 15) of each of the magnet units 130-1 to 130-4 may be larger than the area of the second surface 11b (see FIG. 15).

The first surface 11a of each of the magnet units 130-1 to 130-4 is any one of the corresponding one of the coil units 120-1 to 120-4 (or other than the bobbin 110). Side), and the second surface 11b may be an opposite surface of the first surface 11a.

For example, the length in the horizontal direction of the second surface 11b of each of the magnet units 130-1 to 130-4 may be smaller than the length in the horizontal direction of the first surface 11a.

For example, the horizontal direction of the first surface 11a of each of the magnet units 130-1 to 130-4 is an upper surface from the lower surface of each of the magnet units 130-1 to 130-4 on the first surface 11a. It may be a direction perpendicular to the direction toward. Alternatively, the horizontal direction of the first surface 11a may be a direction perpendicular to the optical axis direction in the first surface 11a.

For example, the horizontal direction of the second surface 11b of each of the magnet units 130-1 to 130-4 is the upper surface at the lower surface of each of the magnet units 130-1 to 130-4 on the second surface 11b. It may be a direction perpendicular to the direction toward, or the horizontal direction of the second surface 11b may be a direction perpendicular to the optical axis direction on the second surface 11b.

For example, the magnet units 130-1 to 130-4 move toward the direction toward the corner portion 142-1, 142-2, 142-3, or 142-4 of the housing 140 from the center of the housing 140. ) Each may include a portion Q2 in which the length of the horizontal direction L2 gradually decreases.

For example, each of the magnet units (130-1 to 130-4) in the horizontal direction length of each of the magnet units (130-1 to 130-4) from the first surface (11a) to the second surface (11b) direction ( L2) may include a decreasing portion Q2. For example, the horizontal direction of each of the magnet units 130-1 to 130-4 may be a direction parallel to the first surface 11a of each of the magnet units 130-1 to 130-4.

Each of the magnet units 130-1 to 130-4 may be an anode magnetized magnet or a four-pole magnet including two N poles and two S poles.

Referring to FIG. 4C, each of the first to fourth magnet units 130-1 to 130-4 includes a first magnet unit 30A, a second magnet unit 30B, and a first magnet unit 30A. A partition wall 30C disposed between the second magnet parts 30B may be included. Here, the partition wall 30C may be a “non-magnetic partition wall”.

The first magnet portion 30A may include an N pole, an S pole, and a first boundary portion 3A between the N pole and the S pole. The first boundary portion 3A may be a portion having substantially no magnetism and may include a section having little polarity, and may be a portion naturally generated to form a magnet composed of one N pole and one S pole. .

The second magnet portion 30B may include an N pole, an S pole, and a second interface 3B between the N pole and the S pole. The second boundary portion 3B is a portion having substantially no magnetism and may include a section having little polarity, and may be a portion naturally generated to form a magnet composed of one N pole and one S pole. .

The partition wall 30Cc separates or isolates the first magnet part 30A and the second magnet part 30B, and may be a part having substantially no magnetism and having little polarity. For example, the partition wall may be a nonmagnetic material, air, or the like. The non-magnetic bulkhead may be expressed as a “Neutral Zone” or a “neutral zone”.

The partition wall 30C is an artificially formed portion when the first magnet portion 30A and the second magnet portion 30B are magnetized, and the width of the partition wall 30C is the width of the first border portion (or the second border portion) Width). Here, the width of the partition wall 30C may be a length in a direction from the first magnet portion 30A to the second magnet portion 30B. The width of the first boundary portion (or the second boundary portion) may be the length of the first boundary portion (or the second boundary portion) in the N-pole direction of each of the first and second magnet portions 30A and 30B.

The first magnet unit 30A and the second magnet unit 30B may be arranged to face opposite polarities in the optical axis direction. For example, the second magnet unit 30B may be disposed under the first magnet unit 30A in the optical axis direction.

For example, the N pole of the first magnet portion 30A and the S pole of the second magnet portion 30B may be arranged to face the coil unit, but are not limited thereto, and vice versa.

For example, the first surface 11a of each of the first to fourth magnet units 130-1 to 130-4 includes the N pole of the first magnet portion 30A and the S pole of the second magnet portion 30B. It can contain.

The first magnet portion 30A may include a first polarity region 20A and a second polarity region 20B. For example, the first polarity region may be an N-pole region, and the second polarity region may be an S-pole region, but is not limited thereto, and in other embodiments, the polarity may be reversed. Also, the second magnet unit 30B may include a first polarity region 10A and a second polarity region 10B.

For example, the first polarity region 10A of the second magnet portion 30B may correspond, face, or overlap with the second polarity region 20B of the first magnet portion 30A in the optical axis direction. For example, the second polarity region 10B of the second magnet portion 30B may correspond, face, or overlap with the first polarity region 20A of the first magnet portion 30A in the optical axis direction.

The first surface 11a of each of the magnet units 130-1 to 130-4 includes one side of the first polarity region 20A of the first magnet portion 30A and a second side of the second magnet portion 30B. It may include one side of the polar region (10B).

The second surface 11b of each of the magnet units 130-1 to 130-4 includes one side of the second polarity region 20B of the first magnet portion 30A and a first side of the second magnet portion 30B. It may include one side of the polar region (10A).

The second polarity region 20B of the first magnet portion 30A decreases in the length L11 in the horizontal direction as it goes from the first surface 11a of the magnet 130 toward the second surface 11b. It may include a reduced portion.

In addition, the length of the horizontal direction decreases or decreases as the first polarity region 10A of the second magnet portion 30B moves toward the second surface 11b from the first surface 11a of the magnet 130. It can include parts.

The first polarity region 20A of the first magnet part 30A increases in the length L12 in the horizontal direction as it goes from the first surface 11a of the magnet 130 toward the second surface 11b. It may include an increasing portion.

Alternatively, the length L12 of the horizontal direction increases as the first polarity region 20A of the first magnet portion 30A goes in a direction from the first surface 11a of the magnet 130 toward the second surface 11b. Can be reduced. For example, the length L12 of the horizontal direction increases as the first polarity region 20A of the first magnet portion 30A goes from the first surface 11a of the magnet 130 toward the second surface 11b. And a portion in which the length L13 in the horizontal direction decreases.

The second polarity region 20B of the second magnet portion 30B is a portion in which the length of the transverse direction increases or increases as it goes from the first surface 11a of the magnet 130 toward the second surface 11b. It may include.

Alternatively, the length of the horizontal direction increases and decreases as the second polarity region 20B of the second magnet part 30B increases in the direction from the first surface 11a of the magnet 130 toward the second surface 11b. have. For example, the second polarity region 20B of the second magnet part 30B increases in the horizontal direction as the direction from the first surface 11a of the magnet 130 toward the second surface 11b increases. It may include a portion in which the length in the horizontal direction decreases.

For example, the planar shape of each of the magnet units 130-1 to 130-4 in the horizontal direction may be a polygon such as a triangle, pentagon, hexagon, or rhombus shape.

In the embodiment, since each of the magnet units 130-1 to 130-4 is implemented as a positive magnetization magnet, magnetic field interference between the second magnet 180 and the first magnet 130 may be reduced, and thereby magnetic field The tilt of the bobbin 110 due to interference can be reduced, and errors in the AF feedback operation can be prevented.

In addition, when the lens driving device according to the embodiment is mounted on a dual camera having two or more lens driving devices, magnetic field outflow is reduced to the outside of the lens driving device, thereby reducing magnetic field interference between adjacent lens driving devices. Due to this, errors in the AF operation and/or the OIS operation due to magnetic field interference of adjacent lens driving devices mounted in the dual camera can be prevented.

5 is a cross-sectional view of the lens driving device 100 shown in FIG. 2 in the AB direction, FIG. 6A is a cross-sectional view of the lens driving device 100 shown in FIG. 2 in the CD direction, and FIG. 6B is shown in FIG. 2. It is a sectional view in the EF direction of the lens drive device shown.

5, 6A, and 6B, each of the second and third magnets 180 and 185 is perpendicular to the optical axis OA and parallel to a straight line passing through the optical axis, respectively, of the first coil 120. It may not overlap with the coil units (120-1 to 120-4).

Since the second and third magnets 180 and 185 are disposed on a side different from the sides of the other bobbin 110 in which the coil units 120-1 to 120-4 are disposed, the second magnet 180 is Is disposed on the bobbin 110, it may not be limited by the length in the optical axis direction, thereby increasing the length in the optical axis direction of the second magnet 180. Since the length of the second magnet 180 in the direction of the optical axis can be increased, the output of the first position sensor 170 can be increased, whereby the sensing sensitivity of the first position sensor 170 can be improved. , Calibration to generate coordinate code values for displacement of the bobbin 110 corresponding to the output of the first position sensor 170 can be easily performed.

Also, in the initial position of the AF moving part, the second magnet 180 may overlap or be aligned with the third magnet 185 in a direction perpendicular to the optical axis OA or in a direction perpendicular to the optical axis and parallel to a straight line passing through the optical axis. However, it is not limited thereto.

Also, in the initial position of the AF movable unit, the first position sensor 170 may overlap the second magnet 180 in a direction perpendicular to the optical axis OA or in a direction perpendicular to the optical axis and parallel to a straight line passing through the optical axis. , But is not limited thereto. In another embodiment, the first position sensor 170 may not overlap with at least one of the second and third magnets 180 and 185.

Also, the first position sensor 170 may not overlap with the magnet units 130-1 to 130-4 in a direction perpendicular to the optical axis OA, or in a direction perpendicular to the optical axis and parallel to a straight line passing through the optical axis. .

For example, the first position sensor 170 is a bobbin in the direction toward the first side (110b1-1) of the bobbin 110 from the first position sensor 170 or the first side (141-1) of the housing 140 The magnet units 130-1 to 130-4 may not overlap in the direction toward the first side portion 110b1-1 of 110.

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

The circuit board 190 may be disposed on one side 141-1 of the housing 140, and the first position sensor 170 may be disposed or mounted on the circuit board 190. For example, the circuit board 190 may be disposed in the mounting groove 14a of the housing 140.

For example, the circuit board 190 may be disposed between the first corner portion 142-1 and the second corner portion 142-2 of the housing 140, and the first to eighth of the circuit board 190 may be disposed. The terminals B1 to B8 may be electrically connected to the first position sensor 170.

For example, the circuit board 190 may not overlap with a virtual line connecting the corner portion (eg, the first corner portion 142-1) (or corner) of the housing 140 and the optical axis OA. This is to prevent spatial interference between the support member 220 and the circuit board 190.

7A is an enlarged view of the circuit board 190 and the first position sensor 170, and FIG. 7B is a configuration diagram according to an embodiment of the first position sensor 170 shown in FIG. 7A.

Referring to FIGS. 7A and 7B, the circuit board 190 may include external terminals or terminals B1 to B8 electrically connected to an external device.

The first position sensor 170 may be disposed on the first surface 19b of the circuit board 190, and the terminals B1 to B6 may be disposed on the second surface 19a of the circuit board 190. have.

Here, the second surface 19a of the circuit board 190 may be an opposite surface of the first surface 19b of the circuit board 190. For example, the first surface 19b of the circuit board 190 may be any surface of the circuit board 190 facing the bobbin 110.

The circuit board 190 may include a body portion S1 and an extension portion S2 located under the body portion S1. The body part S1 may be expressed by replacing it with the “top part”, and the extension part S2 may also be expressed by replacing it with the “bottom part”.

The extension portion S2 may extend downward from the body portion S1.

The body portion S1 may have a protruding shape based on the side surfaces 16a and 16b of the extension portion S2. For example, the side surfaces 16a and 16b of the extension portion S2 may be a surface connecting the first surface 19b and the second surface 19a of the extension portion S2.

The body portion S1 faces the first extension region A1 extending in the direction toward the first corner portion 142-1 of the housing 140 and the second corner portion 142-2 of the housing 140. A second extension region A2 extending in the direction may be included.

For example, the first extension area A1 may extend or protrude from the first side 16a of the extension S2, and the second extension area A2 may be the second side 16b of the extension S2. ).

For example, in FIG. 7A, the length of the first extension region A1 in the horizontal direction is greater than the length of the second extension region A2, but is not limited thereto, and in other embodiments, the first extension region A1 ) May be the same as or less than the length of the second extension region A2 in the horizontal direction.

For example, the length of the body portion S1 of the circuit board 190 in the horizontal direction may be greater than the length of the extension portion S2 in the horizontal direction.

For example, the first to fourth terminals B1 to B4 of the circuit board 190 may be disposed spaced apart from each other on the first surface 19b of the body portion S1. For example, the four terminals B1 to B4 may be arranged in a line in the horizontal direction of the circuit board 190.

The first terminal B1 and the second terminal B2 may be disposed adjacent to both ends of the body portion S1 of the circuit board 190, respectively. That is, each of the first terminal B1 and the second terminal B2 may be disposed adjacent to any one of both ends of the body portion S1 of the circuit board 190.

For example, the first terminal B1 of the circuit board 190 may be disposed at one end (eg, one end of the upper end) of the circuit board 190, and the second terminal B1 is connected to the other end of the circuit board 190. The third terminal B3 may be disposed between the first terminal B1 and the second terminal B2, and the fourth terminal may be disposed between the third terminal B3 and the first terminal B1. (B4) may be disposed.

The first terminal B1 of the circuit board 190 may be disposed in the first extension region A1 of the body portion S1 of the circuit board 190, and the second terminal B2 is the circuit board 190 It may be disposed in the second extension area (A2) of the body portion (S1).

The first to fourth terminals B1 to B4 may be disposed to be located closer to the upper surface 19c than the lower surface of the circuit board 190.

For example, the first to fourth terminals B1 to B4 are the upper surfaces of the body portion S1 of the circuit board 190 in contact with the second surface 19a and the second surface 19a of the circuit board 190 ( 19c).

Also, for example, at least one of the first to fourth terminals B1 to B4 may include a groove 7a or a via formed in the upper surface 19c of the circuit board 190.

For example, the third terminal B3 and the fourth terminal B4 may include a curved portion recessed from the upper surface 19c of the circuit board 190, for example, a semi-circular via or groove 7a. .

The contact area between the solder and the terminals B3 and B4 is increased by the groove 7a to improve adhesion and solderability.

The fifth to eighth terminals B5 to B8 of the circuit board 190 may be disposed spaced apart from each other on the second surface 19a of the extension portion S2 of the circuit board 190.

The circuit board 190 may include a groove 8a or a hole provided between the sixth terminal B6 and the seventh terminal B7. The groove 8a may be recessed from the lower surface of the circuit board 190 and may be opened to both the first surface 19b and the second surface 19a of the circuit board 190.

The separation distance between the sixth terminal B6 and the seventh terminal B7 may be smaller than the separation distance between two adjacent terminals among the first to fourth terminals B1 to B4, for electrical connection with the outside. When soldering, the solder is not formed between the sixth terminal B6 and the seventh terminal B6 by the groove 8a, thereby preventing electrical short circuit between the sixth terminal B6 and the seventh terminal B7. Can be.

Also, although not illustrated in FIG. 7A, at least one of the fifth to eighth terminals B5 to B8 may include a groove or a via formed in a lower surface of the circuit board 190. That is, at least one of the fifth to eighth terminals B5 to B8 may include a curved portion recessed from the lower surface of the circuit board 190, for example, a semi-circular via or groove. By this groove, the contact area between the solder and at least one of the fifth to eighth terminals B5 to B8 can be increased to improve adhesion and solderability.

The circuit board 190 includes a groove 90a disposed between the second terminal B2 and the third terminal B3, and a groove 90b disposed between the first terminal B1 and the fourth terminal B4. It may be provided. Here, the grooves 90a and 90b may be expressed by substituting a “fleeing groove”.

Each of the first groove 90a and the second groove 90b may have a recessed shape from the upper surface 19c of the circuit board 190, and the first surface 19b and the second surface of the circuit board 190 ( 19a) can be opened to all.

The first groove 90a of the circuit board 190 may be formed to avoid spatial interference with the first outer frame 151 of the third upper elastic unit 150-3, and the first groove 90a of the circuit board 190 may be formed. The two grooves 90b may be formed to avoid spatial interference with the first outer frame 151 of the fourth upper elastic unit 150-4.

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

The circuit board 190 may include circuit patterns or wiring (not shown) for electrically connecting the first to eighth terminals B1 to B8 and the first position sensor 170.

The first position sensor 170 may detect the magnetic field or 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 can do.

The first position sensor 170 is mounted on the circuit board 190 disposed in the housing 140 and can be fixed to the housing 140. For example, the first position sensor 170 may be disposed in the mounting groove 14b of the housing 190 and may move together with the housing 140 when correcting hand movement.

The first position sensor 170 may be disposed on the first surface 19b of the circuit board 190. In another embodiment, the first position sensor 170 may be disposed on the second surface 19a of the circuit board 190.

The first position sensor 170 may include a Hall sensor 61 and a driver 62. For example, the driver 62 may be in the form of a driver IC (Integrated Circuit).

For example, the hall sensor 61 may be made of silicon, and as the ambient temperature increases, the output VH of the hall sensor 61 may increase. For example, the ambient temperature may be the temperature of the lens driving device, for example, 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 be reduced with respect to ambient temperature. For example, in another embodiment, the output of the hall sensor 61 may have a slope of about -0.06%/°C relative to the ambient temperature.

The first position sensor 170 may further include a temperature sensing element 63 capable of sensing the 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 generate an output VH according to a result of sensing the strength of the magnetic force of the second magnet 180. For example, VH may be in the form of a voltage, but is not limited thereto, and may be in the form of a current in other embodiments. VH may be a digital signal, but is not limited thereto, and may be an analog signal. For example, the magnitude of the output of the first position sensor 190 may be proportional to the strength of the magnetic force of the detected second magnet 180.

The driver 62 is a driving signal dV for driving the hall sensor 61 and driving signals I1 and I2 for driving the coil units 120-1 to 120-4 of the first coil 120. , I3, I4).

For example, data communication using a protocol, for example, I2C communication, the driver 62 uses the clock signals SCL, the data signals SDA, and the first power signal GND from the controllers 830 and 780. , And a second power signal VDD.

For example, the absolute value of the voltage of the second power signal VDD may be greater than the absolute value of the voltage of the first power signal GND.

For example, the first power signal GND may be a ground voltage or 0[V], and the second power signal VDD may be a predetermined voltage (eg, a positive voltage or a negative voltage) for driving the driver 62. ), DC voltage and/or AC voltage, but is not limited thereto.

The driver 62 uses a clock signal SCL and a power signal VDD, GND to drive the hall sensor 61, a driving signal dV, and coil units 120 of the first coil 120 Driving signals I1, I2, I3, and I4 for driving -1 to 120-4) may be generated.

For example, the driving signal dV may be an analog signal or a digital signal, and may be in the form of current or voltage. Also, for example, the driving signals I1, I2, I3, and I4 may be in the form of current or voltage.

The first position sensor 170 includes four terminals N1 to N4 for transmitting and receiving a clock signal SCL, a data signal SDA, and power signals VDD and GND, and a coil unit of the first coil 120 Four terminals N5 to N8 for providing driving signals to the fields 120-1 to 120-4 may be included.

Also, each of the first to fourth terminals B1 to B4 of the circuit board 190 is electrically connected to any one of the first to fourth terminals N1 to N4 of the first position sensor 170. Can be. In addition, each of the fifth to eighth terminals B5 to B6 of the circuit board 190 is electrically connected to any one of the fifth to eighth terminals N5 to N8 of the first position sensor 170. Can be.

The driver 62 receives the output VH of the hall sensor 61 and clocks the output VH of the hall sensor 61 using data communication using a protocol, for example, I2C communication. The signal SCL and the data signal SDA may be transmitted to the controllers 830 and 780.

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

The controllers 830 and 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 of the hall sensor 61 or the bias signal is 1 [mA], the output VH of the hall sensor 61 of the first position sensor 170 is -20 [mV] ~ 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 ambient temperature change, 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 the first quadrant (eg, 0[mV]) The reason for ~ +30[mV]) is as follows.

Since the output of the Hall sensor 61 in the first quadrant of the xy coordinate system and the output of the Hall sensor 61 in the third quadrant are moved in opposite directions according to changes in the ambient temperature, AF of both the first and third quadrants When used as a driving control section, the accuracy and reliability of the hall sensor may be deteriorated. Therefore, a certain range of the first quadrant can be set as the output range of the hall sensor 61 of the first position sensor 170 in order to accurately compensate for changes in ambient temperature.

In another embodiment, the first position sensor 170 may be implemented by a position detection sensor alone, such as a hall sensor.

The first to fourth terminals B1 to B4 of the circuit board 190 are formed by the upper elastic units 150-1 to 150-4 and the support members 220-1 to 220-4. 250) may be electrically connected to the terminals 251-1 to 251-n (a natural number of n>1), whereby the first to fourth terminals N1 to N4 of the first position sensor 170, respectively Silver may be electrically connected to any one of the terminals 251-1 to 251-n of the circuit board 250, for example, n=4.

In addition, the fifth to eighth terminals B5 to B8 of the circuit board 190 may be electrically connected to the first to fourth lower elastic units 160-1 to 160-5, and the lower elastic units ( Each of the fifth to eighth terminals N5 to N8 of the first position sensor 170 by the 160-1 to 160-4) coil units 120-1 to 120-4 of the first coil 120 ) Can be electrically connected to any one of the corresponding.

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

FIG. 8 shows the upper elastic member 150 shown in FIG. 1, FIG. 9 shows the lower elastic member 160 shown in FIG. 1, and FIG. 10 shows the upper elastic member 150 and the lower elastic member 160 , The base 210, the support member 220, the second coil 230, and a perspective view showing a combination of the circuit board 250, Figure 11 is the first to fourth terminals of the circuit board 190 (B1 to B4) and the upper elastic units 150-1 to 150-4, and FIG. 12 shows the fifth to eighth terminals B5 to B8 and lower elastic units 160- of the circuit board 190. 1 to 160-4), and FIG. 13 is an exploded perspective view of the second coil 230, the circuit board 250, the base 210, and the second position sensor 240, and FIG. 14 is a housing It is a bottom view of the 140, the first magnet 130, the lower elastic member 160, and the circuit board 190. 12 is a perspective view of the dotted portion 39a of FIG. 14.

8 to 14, the upper elastic member 150 may be combined with an upper, upper, or upper surface of the bobbin 110, and the lower elastic member 160 may be lower, lower, or lower of the bobbin 110. It can be combined with the lower surface.

For example, the upper elastic member 150 may be combined with the upper, upper, or upper surface of the bobbin 110 and the upper, upper, or upper surface of the housing 140, and the lower elastic member 160 of the bobbin 110 The lower, lower, or lower surface may be combined with the lower, lower, or lower surface 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 support at least one of the upper or lower elastic members 150 and 160 and the circuit board 250. It can be connected electrically.

Referring to FIG. 8, the upper elastic member 150 may include a plurality of upper elastic units 150-1 to 150-4 that are electrically separated from each other. FIG. 8 shows four upper elastic units that are electrically separated, but the number is not limited thereto, and may be three or more.

The upper elastic member 150 may include first to fourth upper elastic units 150-1 to 150-4, and each of the first to fourth upper elastic units 150-1 to 150-4 The silver may be directly bonded to and electrically connected to any one of the first to fourth terminals B1 to B4 of the circuit board 190.

A portion of each of the plurality of upper elastic units 150-1 to 150-4 may be disposed on the first side 141-1 of the housing 140 on which the circuit board 190 is disposed, and the housing 140 At least one upper elastic unit may be disposed on each of the second to fourth side portions 141-2 to 141-4 which are the rest of the first side portion 141-1 except for the.

Each of the first to fourth upper elastic units 150-1 to 150-4 may include a first outer frame 152 coupled with the housing 140.

At least one of the first to fourth upper elastic units 150-1 to 150-4 includes a first inner frame 151 coupled to the bobbin 110, and a first inner frame 151 and a first outer frame. A first frame connection part 153 connecting the 152 may be further included.

In the embodiment of FIG. 8, each of the first and second upper elastic units 150-1 and 150-2 may include only the first outer frame, and the first inner frame and the first frame connecting portion may not be provided. Each of the first and second upper elastic units 150-1 and 150-2 may be spaced apart from the bobbin 110, but is not limited thereto.

Each of the third and fourth upper elastic units 150-3 and 150-4 may include a first inner frame 151, a first outer frame, and a first frame connecting portion 153, but is not limited thereto. It is not.

For example, the first inner frame 151 of the third and fourth upper elastic units 150-3 and 150-4 has a hole 151a for engaging with the first coupling portion 113 of the bobbin 110. It may be provided, but is not limited thereto. For example, the hole 152a of the first inner frame 151 has at least one incision 51a for the adhesive member to permeate between the first coupling portion 113 and the hole 151a of the bobbin 110. Can be.

In the first outer frame 152 of the first to fourth upper elastic members 150-1 to 150-4, a hole 152a for coupling with the first coupling portion 143 of the housing 140 is provided. Can be.

The first outer frame 151 of each of the first to fourth upper elastic units 150-1 to 150-4 includes a body portion coupled to the housing 140, and first to fourth portions of the circuit board 190. It may include connection terminals P1 to P4 connected to any one of the terminals B1 to B4. Here, the connection terminals P1 to P4 may be expressed by replacing with an “extension part”.

The first outer frame 151 of each of the first to fourth upper elastic units 150-1 to 150-4 includes a first coupling part 520 coupled with the housing 140, and support members 220-1. To 220-4), a second coupling part 510 coupled to any one of the corresponding parts, a connection part 530 connecting the first coupling part 520 and the second coupling part 510, and a second coupling part ( 510 and extending portions P1 to P4 extending to the first side 141-1 of the housing 140.

The body portion of each of the first to fourth upper elastic units 150-1 to 150-4 may include a first coupling portion 520. In addition, each of the first to fourth upper elastic units 150-1 to 150-4 may further include at least one of a second coupling part 510 and a connection part 530.

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

The second coupling part 510 may include a hole 52 through which the support members 220-1 to 220-4 pass. One end of the support members 220-1 to 220-4 passing through the hole 52 may be directly coupled to the second coupling portion 510 by a conductive adhesive member or solder 910 (see FIG. 10). 2 The coupling portion 510 and the support members 220-1 to 220-4 may be electrically connected.

For example, the second coupling part 510 is an area where 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 first coupling portion 520 may include at least one coupling region (eg, 5a, 5b) coupled to the housing 140 (eg, corner portions 142-1 to 142-4).

For example, the coupling region (eg, 5a, 5b) of the first coupling portion 520 may include at least one hole 152a coupled to the first coupling portion 143 of the housing 140.

For example, each of the coupling regions 5a and 5b may have one or more holes, and one or more first coupling portions are provided corresponding to the corner portions 142-1 to 142-4 of the housing 140. Can be.

For example, the coupling regions 5a of the first coupling portion 520 of the first to fourth upper elastic units 150-1 to 150-4 in order to balance the housing 140 so as not to be biased to either side, 5b) may be symmetrical with respect to the reference line (eg, 501, 502), but is not limited thereto.

In addition, the first coupling portions 143 of the housing 140 may be symmetrical with respect to the reference line (eg, 501, 502), and two may be provided on each of both sides of the reference line, but the number is not limited thereto.

The reference lines 501 and 502 may be a straight line passing through any one of the center points 101 and the corners of the corner portions 142-1 to 142-4 of the housing 140. For example, the reference lines 501 and 502 pass through two corners facing each other in the diagonal direction of the housing 140 among the corners of the center points 101 and the corner portions 142-1 to 142-4 of the housing 140. It can be straight.

Here, the center 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. Further, for example, the corner of the corner portion of the housing 140 may be an edge aligned or corresponding to the center of the corner portion of the housing 140.

In the embodiment of FIG. 8, each of the coupling regions 5a and 5b of the first coupling portion 520 is implemented to include a hole 152a, but is not limited thereto. In other embodiments, the coupling regions may include housings 140 ) May be implemented in various forms sufficient to be combined with, for example, a groove form.

For example, the hole 152a of the first coupling portion 520 may have at least one incision 52a for the adhesive member to permeate between the first coupling portion 143 and the hole 152a of the housing 140. Can be.

The connection part 530 may connect the second coupling part 510 and the first coupling part 520 to each other.

For example, the connection portion 530 may connect the second coupling portion 510 and the coupling regions 5a and 5b of the first coupling portion 520.

For example, the connection portion 530 includes the first coupling region 5a and the second coupling portion 510 of the first coupling portion 520 of each of the first to fourth upper elastic units 150-1 to 150-4. It may include a first connecting portion 530a for connecting, and a second connecting portion 530b connecting the second engaging region 5b and the second engaging portion 510 of the first engaging portion 520.

For example, the first outer frame 151 may include a connection region that directly connects the first coupling region 5a and the second coupling region 5b, but is not limited thereto.

Each of the first and second connecting portions 530a and 530b may include a bent portion that is bent at least once or a curved portion that is bent at least once, but is not limited thereto, and may be in a straight line shape in other embodiments.

The width of the connection portion 530 may be smaller than the width (or diameter) of the first coupling portion 520. Alternatively, the width of the connection portion 530 may be smaller than the width (or diameter) of the second coupling portion 510. In another embodiment, the width of the connection portion 530 may be the same as the width of the first coupling portion 520 or the width (or diameter) of the second coupling portion 510.

For example, the first coupling portion 520 may contact the upper surfaces of the corner portions 142-1 to 142-4 of the housing 140, and the corner portions 142-1 to 142-4 of the housing 140 It 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 an empty space between the connection part 530 and the housing 140 to prevent oscillation due to vibration.

The width of each of the first and second connecting portions 530a and 530b may be smaller than the width of the first coupling portion 520, whereby the connecting portion 530 may be easily moved in the first direction. The stress applied to the upper elastic units 150-1 to 150-4 and the stress applied to the support members 220-1 to 220-4 may be dispersed.

Each of the first and second extensions P1 and P2 of the first outer frames of the first and second upper elastic units 150-1 and 150-2, respectively, includes a first coupling portion 520 (eg, a first From the coupling region 5a) to the corresponding one of the first and second terminals B1 and B2 of the circuit board 190 located on the first side 141-1 of the housing 140. have.

The first coupling portion 520 of the third upper elastic unit 150-3 is at least one connected to at least one of the fourth side portion 141-4 and the second corner portion 142-2 of the housing 140. The coupling regions 6a and 6b of may be further included.

In addition, the first coupling portion 520 of the fourth upper elastic unit 150-4 is at least connected to at least one of the second side portion 141-2 and the first corner portion 142-1 of the housing 140. One coupling region 6c or 6d may be further included.

Each of the third and fourth extensions P3 and P4 of the first outer frames of the third and fourth upper elastic units 150-3 and 150-4, respectively, includes a first coupling portion 520 (eg, a coupling region) (6b, 6d)) may be extended toward any one of the third and fourth terminals (B3, B4) of the circuit board 190 located on the first side 141-1 of the housing 140. have.

One end of each of the first to fourth extensions P1 to P4 may be coupled to any one of the first to fourth terminals B1 to B4 of the circuit board 190 by soldering or a conductive adhesive member. have.

Each of the first and second extension parts P1 and P2 may have a straight line shape.

In order to facilitate coupling with any one of the third and fourth terminals B3 and B4 of the circuit board 190, the third and fourth extensions P3 and P4 may be bent or curved. It can contain.

The first outer frame of the third upper elastic unit 150-3 is connected between the first coupling portion 520 and the extension portion P3, and the fourth side portions 141-4 and 4 of the housing 140. A first extension frame 154-1 positioned at the corner portion 142-4 may be further included.

In order to prevent the third upper elastic unit 150-3 from being lifted by strengthening the bonding force with the housing 140, the first extension frame 154-1 has at least one coupling area (coupling with the housing 140) 6a and 6b, and the coupling regions 6a and 6b may include holes for coupling with the first coupling portion 143 of the housing 140.

The first outer frame of the fourth upper elastic unit 150-4 is connected between the first coupling portion 520 and the extension portion P4, and the second side portion 141-2 and the first portion of the housing 140 are connected. A second extension frame 154-2 positioned at the corner portion 142-1 may be further included.

In order to prevent the fourth upper elastic unit 150-4 from being lifted by strengthening the bonding force with the housing 140, the second extension frame 154-2 includes at least one coupling area (coupling the housing 140). 6c and 6d, and the coupling regions 6c and 6d may include holes for coupling with the first coupling portion 143 of the housing 140.

In FIG. 8, each of the third upper elastic unit 150-3 and the fourth upper elastic unit 150-4 includes two first frame connection parts, but is not limited thereto, and the number of the first frame connection parts is 1 It can be a dog or three or more.

As described above, each of the first to fourth upper elastic units 150-1 to 150-4 includes extensions P1 to P4 disposed on the first side 141-1 of the housing 140. It may include, the upper elastic units 150-1 to 150 in the first to fourth terminals (B1 to B4) provided in the body portion (S1) of the circuit board 190 by the extension (P1 to P4) -4) can be easily combined.

Four terminals B1 to B4 provided on the body portion S1 of the circuit board 190 disposed on the first side portion 141-1 of the housing 140 are first to fourth upper elastic units 150 -1 to 150-4), so that the first to fourth upper elastic units 150-1 to 150-4 of the first side 141-1 of the housing 140 are electrically connected. A portion of each first outer frame 151 may be disposed.

Each of the upper elastic units 150-1 to 150-4 may be disposed at a corresponding one of the corner portions 142-1 to 142-4 of the housing 140, and the first side portion of the housing 140 It may be provided with extensions (P1 to P4) extending to (141-1).

The extension portions P1 to P4 of each of the upper elastic units 150-1 to 150-4 are provided in the body portion S1 of the circuit board 190 by a conductive adhesive member 71 such as solder. It can be directly coupled to any one of the four terminals (B1 to B4).

The first outer frame 151 of the first upper elastic unit 150-1 may be disposed at the first corner portion 142-1 of the housing 140, and the first outer frame 151-1 of the second upper elastic unit 150-2 may be disposed. The first outer frame 151 may be disposed on the second corner portion 142-2 of the housing 140, and the first outer frame 151 of the third upper elastic unit 150-3 may be the housing 140. ), the first outer frame 151 of the fourth upper elastic unit 150-4 may be disposed at the third corner portion 142-3, and the fourth corner portion 142-4 of the housing 140. Can be placed on.

A portion of the third upper elastic unit 150-3 may be disposed in the first groove 90a of the first circuit board 190, and the end of the portion of the third upper elastic unit 150-3 may be a circuit It may be coupled to the third terminal B3 of the substrate 190.

A portion of the fourth upper elastic unit 150-4 may be disposed in the second groove 90b of the first circuit board 190, and an end of a portion of the fourth upper elastic unit 150-4 may be a circuit board It may be coupled to the fourth terminal (B4) of (190).

The third extension portion P3 of the third upper elastic unit 150-3 passes through the first groove 90a of the circuit board 190 and extends toward the third terminal B3 of the circuit board 190. Can be bent at least twice.

In addition, the fourth extension portion P4 of the fourth upper elastic unit 150-4 passes through the second groove 90b of the circuit board 190 and extends toward the fourth terminal B4 of the circuit board 190. And can be bent at least twice.

The third extension portion P3 (or “third connection terminal”) of the third upper elastic unit 150-3 may include at least two bending regions 2a and 2b.

For example, the third extension portion P3 of the third upper elastic unit 150-3 extends from the first coupling portion 520 (eg, the coupling region 6b) of the third upper elastic unit 150-3. First portion 1a, first bending region 2a (or "first bending portion") bent in first portion 1a, second portion 1b extending in first bending region 2a , A second bending region 2b (or “second bending portion”) bent in the second portion 1b, and a third portion extending in the direction of the third terminal B3 in the second bending region 2b ( 1c).

For example, the second part 1b of the third extension P3 (or the third connection terminal) may be bent in the first part 1a, and the third part 1c may be in the second part 1b. Can be bent.

The second portion 1b of the third extension portion P3 is disposed between the first bending region 2a and the second bending region 2b, and connects the first and second bending regions 2a and 2b. Can be.

For example, each of the first portion 1a and the third portion 1c of the third extension portion P3 is from the second corner portion 142-2 of the housing 140 to the first corner portion 141-1. It may extend in the direction facing. For example, the second portion 1b of the third extension portion P3 may extend from the inner surface of the housing 140 to the outer surface.

A part of the third extension portion P3 of the third upper elastic unit 150-3 (eg, the second portion 1b) is located in the first groove 90a of the circuit board 190 or the first groove Can pass through (90a).

The fourth extension portion P4 (or the “fourth connection terminal”) of the fourth upper elastic unit 150-4 may include at least two bending regions 2c and 2d.

For example, the fourth extension portion P4 of the fourth upper elastic unit 150-4 extends from the first coupling portion 520 (eg, the coupling region 6d) of the fourth upper elastic unit 150-4. The fourth portion 1d, the third bending region 2c (or “third bending portion”) bent in the fourth portion 1d, and the fifth portion 1e extending in the third bending region 2c , A fourth bending region 2d (or “fourth bending portion”) bent in the fifth portion 1e, and a sixth portion extending in the direction of the fourth terminal B4 in the fourth bending region 2d ( 1f).

For example, the fifth portion 1e of the fourth extension P4 (or the fourth connection terminal) may be bent in the fourth portion 1d, and the sixth portion 1f may be in the fifth portion 1e. Can be bent.

The fifth portion 1e of the fourth extension portion P4 is disposed between the third bending region 2c and the fourth bending region 2d, and connects the third and fourth bending regions 2c and 2d. Can be.

For example, each of the fourth portion 1d and the sixth portion 1f of the fourth extension portion P4 is from the first corner portion 142-1 of the housing 140 to the second corner portion 141-2. It may extend in the direction facing. For example, the fifth portion 1e of the fourth extension portion P4 may extend from the inner surface of the housing 140 to the outer surface.

A portion (eg, the fifth portion 1e) of the fourth extension portion P4 of the fourth upper elastic unit 150-4 is located in the second groove 90b of the circuit board 190 or the second groove (90b).

Referring to FIG. 9, the lower elastic member 160 may include a plurality of lower elastic units 160-1 to 160-4.

For example, at least one of the first to fourth lower elastic units 160-1 to 160-4 is the second inner frame 161-1 to 161 coupled or fixed to the lower, lower, or lower portions of the bobbin 110. -4), the second outer frame (162-1 to 162-4), and the second inner frame (161-1 to 161-4) fixed or coupled to the lower, lower, or lower part of the housing 140 2 may include a second frame connecting portion 163 connecting the outer frames 162-1 to 162-4 with each other.

At least one second inner frame (eg, 161-1, 161-2) of the first to fourth lower elastic units 160-1 to 160-4 has a second coupling portion 117 of the bobbin 110. A hole 161a may be provided to be coupled with the second outer frame (eg, 162-3, 162-4) of at least one of the first to fourth lower elastic units 160-1 to 160-4. ) May be provided with a hole 162a for coupling with the second coupling portion of the housing 140.

The number of second inner frames included in at least one of the first to fourth lower elastic units 160-1 to 160-4 may be one or more, and the first to fourth lower elastic units 160-1 The number of second outer frames included in at least one of 160-4) may be one or more.

At least one of the first to fourth lower elastic units 160-1 to 160-4 may include connection frames 164-1 to 164-4 connecting the second outer frames to each other.

The width of each of the connection frames 164-1 to 164-4 may be smaller than the width of the second outer frames 162-1 to 162-3, but is not limited thereto.

The connection frames 164-1 to 164-4 are provided with coil units 230-1 to 230-4 and magnet units (to avoid spatial interference with the second coil 230 and the first magnet 130). 130-1 to 130-4) may be located outside the coil units 230-1 to 230-4 and the magnet units 130-1 to 130-4.

At this time, the coil units 230-1 to 230-4 of the second coil 230 and the outsides of the magnet units 130-1 to 130-4 are the coil units 230-1 to 230-4 and The center of the bobbin 110 or the center of the housing 140 based on the magnet units 130-1 to 130-4 may be opposite.

Also, for example, the connection frames 164-1 to 164-4 are positioned so as not to overlap with the coil units 230-1 to 230-4 or/and the magnet units 130-1 to 130-4 in the optical axis direction. However, the present invention is not limited thereto, and in another embodiment, at least a portion of the connection frames 164-1 to 164-4 are coil units 230-1 to 230-4 and/or magnet units in the optical axis direction. It may be aligned or overlapped with (130-1 to 130-4).

The upper elastic units 150-1 to 150-4 and the lower elastic units 160-1 to 160-4 may be formed of a leaf spring, but are not limited thereto, and may be implemented as a coil spring or the like. The expression "elastic unit" may be expressed by replacing "spring", "outer frame" may be expressed by replacing "outer", and "inner frame" may be expressed by replacing "inner" , Support member (eg, 220) may be represented by replacing with a wire.

As illustrated in FIG. 14, the first to fourth lower elastic units 160-1 to 160-4 may be disposed symmetrically left or right or up and down symmetrically with respect to the reference line 401.

For example, the reference line 401 may be a straight line parallel to a direction from the first side to the second side of the housing 140 and passing through the center of the number of the housings 140.

For example, the reference line 401 may be a horizontal line passing through the first bonding portion 81a and the second bonding portion 81b in FIG. 14 and passing between the third bonding portion 43c and the fourth bonding portion 43d. .

For example, the third lower elastic member 160-3 based on the reference line 401 may be symmetrical to the fourth lower elastic member 160-4, and the first lower elastic member 160 based on the reference line 401 -1) may be symmetrical to the second lower elastic member 160-2, but is not limited thereto, and in other embodiments, both may not be symmetrical with respect to the reference line 401.

For example, the first bonding portion 81a and the second bonding portion 81b may be symmetrically disposed with respect to the reference line 401, and the third bonding portion 43c and the third bonding portion 43c may be disposed on the basis of the reference line 401. 4 The bonding portions 43d may be arranged symmetrically to each other, but are not limited thereto, and in other embodiments, the two may not be symmetrical to each other.

Next, the support member 220 will be described.

The support member 220 may include a plurality of support members 220-1 to 220-4.

The support members 220-1 to 220-4 may be disposed in the corner portions 142-1 to 142-4 of the housing 140, and the upper elastic units 150-1 to 150-4 and circuits The substrates 250 may be electrically connected to each other.

Each of the support members 220-1 to 220-4 may be combined with any one of the first to fourth upper elastic units 150-1 to 150-4.

Each of the support members 220-1 to 220-4 includes a corresponding one of the first to fourth upper elastic units 150-1 to 150-4 and terminals 251-1 of the circuit board 250 To 251-n, for example, n=4).

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 one end of each of the support members 220-1 to 220-4 is soldered. By 901 it can be directly connected to or coupled to any one of the second coupling portion 510 of the upper elastic units (150-1 to 150-4).

Also, the other ends of the support members 220-1 to 220-4 may be directly connected or coupled to the circuit board 250, but are not limited thereto.

Each of the support members 220-1 to 220-4 may be disposed at a corresponding one of the corner portions 142-1 to 142-4 of the housing 140.

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

Each of the coil units 120-1 to 120-4 of the first coil 120 is attached to a second inner frame of any one of the first to fourth lower elastic units 160-1 to 160-4. It can be directly connected or combined.

For example, the second inner frame 161-1 of the first lower elastic unit 160-1 may include a first bonding portion 43a coupled with one end of the first coil unit 120-1. The other end of the first coil unit 120-1 may be connected or coupled to any one upper elastic unit (eg, 150-3 or 150-4) to which the first power signal GND is provided.

For example, the second inner frame 161-2 of the second lower elastic unit 160-2 may include a second bonding portion 43b coupled to one end of the second coil unit 120-2. The other end of the second coil unit 120-2 may be connected to or coupled to an upper elastic unit (eg, 150-3 or 150-4) provided with a first power signal GND.

For example, the second inner frame 161-3 of the third lower elastic unit 160-3 may include a third bonding portion 43c coupled with one end of the third coil unit 120-3. The other end of the third coil unit 120-3 may be connected to or coupled to an upper elastic unit (eg, 150-3 or 150-4) provided with a first power signal GND.

For example, the second inner frame 161-4 of the fourth lower elastic unit 160-4 may include a fourth bonding portion 43d that is coupled to one end of the fourth coil unit 120-4. The other end of the fourth coil unit 120-4 may be connected or coupled to an upper elastic unit (eg, 150-3 or 150-4) provided with a first power signal GND.

That is, the other end of each of the first to fourth coil units 120-1 to 120-4 is electrically common to the upper elastic unit (eg, 150-3 or 150-4) to which the first power signal GND is provided. Can be connected.

For example, that is, the other end of each of the first to fourth coil units 120-1 to 120-4 is made of an upper elastic unit (eg, 150-3 or 150-4) to which the first power signal GND is provided. 1 may be coupled to the inner frame 151.

For example, each of the first to fourth bonding parts 43a to 43d may be provided with a groove 8a for guiding any one of the coil units 120-1 to 120-4.

The first support member 220-1 may be disposed on the first corner portion 142-1 of the housing 140, and coupled with the second coupling portion 510 of the first upper elastic unit 150-1. Can be.

The second support member 220-2 may be disposed on the second corner portion 142-2 of the housing 140, and coupled with the second coupling portion 510 of the second upper elastic unit 150-2. Can be.

The third support member 220-3 may be disposed on the third corner portion 142-3 of the housing 140, and coupled with the second coupling portion 510 of the third upper elastic unit 150-3. Can be.

The fourth support member 220-4 may be disposed on the fourth corner portion 142-4 of the housing 140, and coupled with the second coupling portion 510 of the fourth upper elastic unit 150-4. Can be.

Each of the first to fourth supporting members 220-1 to 220-4 corresponds to any one of the first to fourth terminals 251-1 to 251-n, n = 4 of the circuit board 250. It can be electrically connected to. Power signals (VDD, GND), clock signals (SCL), and data signals for the first position sensor 170 through the first to fourth terminals 251-1 to 251-4 of the circuit board 250 ( SDA) may be provided.

The first position sensor 170 on the circuit board 250 through the first to fourth support members 220-1 to 220-4 and the first to fourth upper elastic units 150-1 to 150-4. ), the power signal VDD, GND, the clock signal SCL, and the data signal SDA may be provided.

For example, the third and fourth terminals of the circuit board 190 through the third and fourth upper elastic units 150-3 and 150-4 and the third and fourth support members 220-3 and 220-4. Power signals VDD and GND may be provided to the fields B3 and B4. In addition, the first position sensor 170 may receive power signals VDD and GND through the third and fourth terminals B3 and B4 of the circuit board 190.

For example, the third terminal B3 of the circuit board 190 may be any one of the VDD terminal and the GND terminal, and the fourth terminal B4 of the circuit board 190 may be the other of the VDD terminal and the GND terminal. It may be a terminal, but is not limited thereto.

First and second terminals of the circuit board 190 through the first and second support members 220-1 and 220-2 and the first and second upper elastic units 150-1 and 150-2 ( The clock signal SCL and the data signal SDA may be provided to B1 and B2). Also, the first position sensor 170 may be provided with a clock signal SCL and a data signal SDA through the first and second terminals B1 and B2 of the circuit board 190.

In another embodiment, the third and fourth of the circuit board 190 through the third and fourth upper elastic units 150-3 and 150-4 and the third and fourth support members 220-3 and 220-4. A clock signal SCL and a data signal SDA may be provided to the four terminals B3 and B4, and the first and second supporting members 220-1 and 220-2 and the first and second upper elastic units Power signals VDD and GND may be provided to the first and second terminals B1 and B2 of the circuit board 190 through the fields 150-1 and 150-2.

Each of the fifth to eighth terminals B5 to B8 of the circuit board 190 has a second outer frame 162 corresponding to any one of the first to fourth lower elastic units 160-1 to 160-2. -1 to 162-4).

For example, the second outer frame 162-1 of the first lower elastic unit 160-1 is a first bonding portion for bonding the seventh terminal B7 of the circuit board 190 by soldering or a conductive adhesive member. (81a) can be provided.

In addition, the second outer frame 162-2 of the second lower elastic unit 160-2 is a second bonding portion for bonding the sixth terminal B6 of the circuit board 190 by soldering or a conductive adhesive member ( 81b).

In addition, the second outer frame 162-3 of the third lower elastic unit 160-3 is a third bonding portion for bonding the fifth terminal B5 of the circuit board 190 by soldering or a conductive adhesive member ( 81c).

In addition, the second outer frame 162-4 of the fourth lower elastic unit 160-4 is a fourth bonding portion for bonding the eighth terminal B8 of the circuit board 190 by soldering or a conductive adhesive member ( 81d).

Referring to FIG. 12, one end (for example, a lower or lower surface) of each of the fifth to eighth terminals B5 to B8 of the circuit board 190 includes first to fourth lower elastic units 160-1 to 160- It may be located lower than the lower or lower surface of the second outer frame (162-1 to 162-4) of 2).

12 is a bottom view, the bottom of each of the fifth to eighth terminals B5 to B6 of the circuit board 190 is the second outer frame 162-1 to 162-4, based on the top view. It may be represented as being lower than the lower or lower surfaces of the first to fourth bonding parts 81a to 81d. It is soldered between one end of each of the fifth to eighth terminals B5 to B8 and the first to fourth bonding portions 81a to 81d of the first to fourth lower elastic units 160-1 to 160-4. To improve sex.

Also, referring to FIG. 12, the housing 140 may include a groove 31 recessed from the lower surface of the first side portion 141-1. For example, the bottom surface of the groove 31 of the housing 140 may have a step difference from the bottom surface of the housing 140 in the optical axis direction. For example, the bottom surface of the groove 31 of the housing 140 may be positioned higher than the bottom surface of the housing 140.

The groove 31 of the housing 140 may overlap the first to fourth bonding portions 81a to 81d of the first to fourth lower elastic units 160-1 to 160-4 in the optical axis direction.

The grooves 31 of the housing 140 may increase the area where the fifth to eighth terminals B5 to B8 of the circuit board 190 are opened from the housing 140, and solder or conductive adhesive members may be used. It is possible to secure a space to be seated, so that the solderability can be improved, and the degree of downward projection of the lower surface of the second outer frames 162-1 to 162-4 can be lowered, so that the lower elastic units Spatial interference with the second coil 230, the circuit board 250, or the base 210 disposed below (160-1 to 160-4) may be suppressed or prevented.

In addition, the lower surface 11c of the first magnet 130 disposed on the seating portion 141a of the housing 140 is the lower surface of the housing 140 and/or the first to fourth lower elastic units 160-1 to 160 -4) may be located higher than the lower surface of the second outer frame 162-1 to 162-4, but is not limited thereto, and in another embodiment, the lower surface 11c of the first magnet 130 may include a housing ( It may have a height lower than or equal to the lower surface of 140).

In order for the first magnet 130 to be spaced apart from the second coil 230 and the circuit board 250, the other end of the support member 220 is positioned at a lower position than the lower surface 11c of the first magnet 130 ( 250) (or circuit member 231).

The support member 220 may be made of a conductive, elastically supportable member, for example, a suspension wire, leaf spring, or coil spring. In addition, in another embodiment, the support member 220 may be formed integrally 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 an opening of the bobbin 110, and/or an opening of the housing 140, and a shape corresponding to or corresponding to the cover member 300, for example, It may have a rectangular shape. For example, the opening of the base 210 may be in the form of a through hole penetrating the base 210 in the optical axis direction.

When the base 210 is adhesively fixed to the cover member 300, the base 210 may be provided with a step 211 to which an adhesive may be applied. At this time, the stepped 211 may guide the side plate of the cover member 300 coupled to the upper side, and the bottom side of the side plate of the cover member 300 may be contacted with the stepped 211. The lower end of the step plate 211 of the base 210 and the side plate of the cover member 300 may be adhered and fixed by an adhesive or the like.

A support portion 255 may be provided in an area of the base 210 facing the terminal surface 253 on which the terminals 251-1 to 251-n of the circuit board 250 are provided. The supporting portion 255 may support the terminal surface 253 of the circuit board 250 on which the terminals 251-1 to 251-n of the circuit board 250 are formed.

The base 210 may have a groove 212 in an edge area corresponding to an edge of the cover member 300. When the edge of the cover member 300 has a protruding shape, the protrusion of the cover member 300 may be engaged with the base 210 in the second recess 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 seating 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.

In addition, a protrusion 19 for engaging the opening of the circuit board 250 and the opening of the circuit member 231 may be provided on an upper surface around the opening of the base 210.

The second coil 230 may be disposed on the upper portion of the circuit board 250, and the OIS position sensors 240a and 240b are the seating grooves 215-1 and 215 of the base 210 located under the circuit board 250. -2).

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 part may include an AF movable part and components mounted on the housing 140.

For example, the OIS movable part may include an AF movable part and a housing 140, and may further include a first magnet 130 according to an embodiment. For example, the AF movable unit may include bobbins 110 and components mounted on the bobbins 110 to move together with the bobbins 110. For example, the AF movable unit may include a bobbin 110, a lens (not shown) mounted on the bobbin 110, a first coil 120, a second magnet 180, and a third magnet 185.

The circuit board 250 is disposed on the upper surface of the base 210, and may have an opening corresponding to the opening of the bobbin 110, the opening of the housing 140, and/or the opening of the base 210. The opening of the circuit board 250 may be in the form of a through hole.

The shape of the circuit board 250 may be a shape that coincides with or corresponds to the upper surface of the base 210, for example, a square shape.

The circuit board 250 is bent from the upper surface, a plurality of terminals (terminals. 251-1 to 251-n, n>1 is a natural number), or pins (pins) provided with electrical signals from the outside are provided It may be provided with a terminal surface (253).

The second coil 230 may be disposed under the bobbin 110.

The second coil 230 may include coil units 230-1 to 230-4 corresponding to or facing the magnet units 130-1 to 130-4 disposed in the housing 140.

The coil units 230-1 to 230-4 of the second coil 230 may be disposed on the circuit board 250 or on the upper surface of the circuit board 250.

Each of the coil units 230-1 to 230-4 of the second coil 230 is magnet units 130-1 to 130-disposed in the corner portions 142-1 to 142-4 of the housing 140. 4) may be disposed to face or overlap with one of the corresponding one in the optical axis direction.

For example, the second coil 230 may include a circuit member 231 and a plurality of coil units 230-1 to 230-4 formed on the circuit member 231. Here, the circuit member 231 may be expressed as a “substrate”, a “circuit board”, or a “coil board”.

For example, the four coil units 230-1 to 230-4 may be disposed or formed in corners or corner regions of the circuit member 231 of a polygon (eg, square).

For example, the second coil 230 faces two coil units 230-1 and 230-3 facing the first horizontal direction (or the first diagonal direction) and the second horizontal direction (or the second diagonal direction). It may include two coil units (230-2, 230-4), but is not limited thereto. For example, two coil units 230-1 and 230-3 facing the first horizontal direction (or the first diagonal direction) may be connected to each other in series, and facing the second horizontal direction (or the second diagonal direction) 2 The coil units 230-2 and 230-4 may be connected in series with each other, but are not limited thereto.

For example, the coil units 230-1 and 230-3 may be disposed in any two corner regions of the circuit member 231 facing each other in the first diagonal direction of the circuit member 231, and the coil units (230-2, 230-4) may be disposed in two other corner areas of the circuit member 231 facing each other in the second diagonal direction of the circuit member 231. The first diagonal direction and the second diagonal direction may be perpendicular to each other.

In another embodiment, the second coil 230 may include only one coil unit in the first diagonal direction and one coil unit in the second diagonal direction, or may include four or more coil units.

The second coil 230 may be provided with a power or drive signal from the circuit board 250. For example, a first driving signal may be provided to two coil units 230-1 and 230-3 connected in series, and a second driving signal may be provided to two coil units 230-2 and 230-4 connected in series. have.

The power or drive signal provided to the second coil 230 may be a DC signal or an AC signal, or may include a DC signal and an AC signal, and may be in the form of current or voltage.

By the interaction between the magnet units (130-1 to 130-4) and the second coil units (230-1 to 230-4) the housing 140 in the second and / or third direction, for example, the x-axis And/or can move in the y-axis direction, whereby image stabilization can be performed.

The coil units 230-1 to 230-4 of the second coil 230 are among the terminals 251-1 to 251-n of the circuit board 250 in order to receive a driving signal from the circuit board 250. It may be electrically connected to the corresponding terminals.

The circuit board 250 may include pads 27a, 27b, 28a, and 28b for being electrically connected to the coil units 230-1 to 230-4. Here, the pads 27a, 27b, 28a, and 28b may be expressed by substituting “terminals” or “bonding parts”.

For example, one end of the coil units 230-1 and 230-3 connected in series may be electrically connected to the first pad 28a of the circuit board 250, and the other end of the coil units 230-1 and 230-3 connected in series may be connected to the circuit. It may be electrically connected to the second pad 28b of the substrate 250.

Further, for example, one end of the coil units 230-2 and 230-4 connected in series may be electrically connected to the third pad 27a of the circuit board 250, and the other end of the coil units 230-2 and 230-4 connected in series may It may be electrically connected to the fourth pad 27b of the circuit board 250.

The first and second pads 28a and 28b of the circuit board 250 may be electrically connected to corresponding two terminals of the terminals 251-1 to 251-n of the circuit board 250, The first driving signal may be provided to the coil units 230-1 and 230-3 connected in series through two corresponding terminals of the circuit board 250.

The third and fourth pads 27a and 27b of the circuit board 250 may be electrically connected to the other two corresponding terminals of the terminals 251-1 to 251-n of the circuit board 250, , A second driving signal may be provided to the coil units 230-2 and 230-4 connected in series through the other two corresponding terminals of the circuit board 250.

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

The circuit member 231 may be provided with an escape groove 24 to avoid spatial interference with the fifth to eighth terminals B5 to B8 of the circuit board 190. The escape groove 24 may be formed on one side of the circuit member 231. For example, the escape groove 24 may be disposed between the first coil unit 230-1 and the second coil unit 230-2.

The circuit board 250 and the circuit member 231 are separately expressed in separate configurations, but are not limited thereto, and in another embodiment, the circuit board 250 and the circuit member 231 are bundled together to be a “circuit member”. Alternatively, the term "substrate" may be used. In this case, the other end of the support members can be coupled to the “circuit member (eg, the lower surface of the circuit member)”.

In order to avoid spatial interference with the support member 220, a hole 23 (eg, a through hole) through which the support member 220 can pass may be provided at an edge of the circuit member 231, in another embodiment, through A groove formed at an edge of the circuit member 231 may be provided instead of the hole.

The first OIS position sensor 240a may overlap any one of the two magnets 130-1 and 130-3 facing each other in the first diagonal direction in the optical axis direction. For example, the first OIS position sensor 240a may overlap the magnet 130-4 in the optical axis direction.

The second OIS position sensor 240b may overlap with any one of the two magnets 130-2 and 130-4 facing each other in the second diagonal direction in the optical axis direction.

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

Terminals 251-1 to 251-n may be provided on the terminal surface 253 of the circuit board 250.

Signals (SCL, SDA, VDD, GND) for data communication with the first position sensor 190 through a plurality of terminals 251-1 to 251-n installed on the terminal surface 253 of the circuit board 250 ) May be transmitted/received, a driving signal may be supplied to the OIS position sensors 240a, 240b, and signals output from the OIS position sensors 240a, 240b may be received and output to the outside.

According to an embodiment, the circuit board 250 may be provided as a flexible circuit board (FPCB), but is not limited thereto, and the terminals of the circuit board 250 are used on the surface of the base 210 using a surface electrode method or the like. It is also possible to form directly.

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 support members 220-1 to 220-4.

The support members 220-1 to 220-4 pass through the hole 250a of the circuit board 250 through pads (or circuit patterns) formed on the bottom surface of the circuit board 250 and solder or conductive adhesive members. It may be electrically connected, but is not limited thereto.

In another embodiment, the circuit board 250 may not have a hole, and the support members 220-1 to 220-4 may be soldered or conductively bonded to a circuit pattern or pad formed on the top surface of the circuit board 250. It may be electrically connected through a member or the like.

Alternatively, in other embodiments, the support members 220-1 to 220-4 may connect the upper elastic units 150-1 to 150-4 with the circuit member 231, and the circuit member 231 is a circuit board It can be electrically connected to 250.

In an embodiment, since the driving signals are directly provided from the first position sensor 170 to the coil units 120-1 to 120-4 of the first coil 120, the first signal is transmitted through the circuit board 250. Compared to the case where the drive signal is directly provided to the coil 120, the number of support members can be reduced, and the electrical connection structure can be simplified.

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

The cover member 300 is a bobbin (bobbin, 110), the first coil 120, the first magnet (magnet, 130), the housing 140, the upper elastic member 150 in the accommodation space formed 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 the circuit board 250.

The cover member 300 may be in the form of a box with a lower opening and a top plate and side plates, and a lower portion of the cover member 300 may be combined with an upper portion of the base 210. The shape of the top plate of the cover member 300 may be a polygon, for example, a square or an octagon.

The cover member 300 may include an opening exposing a lens (not shown) coupled with the bobbin 110 to external light on the top plate. The material of the cover member 300 may be a non-magnetic material such as SUS to prevent the phenomenon of sticking with the first magnet 130, but is formed of a magnetic material to form an magnetic material and the electromagnetic force between the first coil 120 and the first magnet 130. It may also function as a yoke that improves.

15 shows the first magnet 130 (130-1 to 130-4), the second and third magnets 180 and 185, the first position sensor 170, the capacitor 195, and the circuit board 190. , And FIG. 16 shows a side view of FIG. 15, and FIG. 17 explains the arrangement of the first position sensor 170, the second magnet 180, and the coil units 120-1 to 120-4. It is a drawing for doing.

15 to 17, the first magnet unit 130-1 will be described, but the description thereof may also be applied to the remaining magnet units 130-4.

The first magnet unit (130-1) is the first to the direction toward the second surface (11b) of the first magnet unit (130-1) from the first surface (11a) of the first magnet unit (130-1) The length of the magnet unit 130-1 in the horizontal direction may increase and decrease.

For example, the first magnet unit 130-1 goes from the first surface 11a of the first magnet unit 130-1 toward the second surface 11b of the first magnet unit 130-1. The first portion Q1 in which the length L1 in the horizontal direction increases and the second portion Q2 in which the length L2 in the horizontal direction decreases as the direction from the first surface 11a toward the second surface 11b increases ).

The first portion Q1 of the first magnet unit 130 may include the first surface 11a or may contact the first surface 11a. Further, the second portion Q2 of the first magnet unit (eg, 130) may include the second surface 11b or may contact the second surface 11b.

The reason why the length L2 in the horizontal direction of the second portion Q2 of the first magnet unit 130-1 is reduced is that the first magnet unit 130-1 is the corner portion 142-1 of the housing 140. To 142-4).

The reason why the length of the first portion Q1 of the first magnet unit 130-1 increases is that the first magnet unit 130 disposed in the seating portion 141a of the housing 140 is inside the housing 140. This is to prevent the deviation. In addition, since the length L1 in the horizontal direction of the first portion Q1 decreases as the direction from the second surface 11b toward the first surface 11a decreases, the first magnet 130 and the second magnet 180 ), and the influence of magnetic field interference between the first magnet 130 and the third magnet 185 can be reduced.

The length d1 of the first portion Q1 of the first magnet 130 in the direction from the first surface 11a toward the second surface 11b is the second surface 11b from the first surface 11a It may be smaller than the length (d2) of the second portion (Q2) of the first magnet 130 in the direction toward (d1 <d2). In the case of d1>d2, the area of the first surface 11a decreases, so that the electromagnetic force due to the interaction between the first coil 120 and the first magnet 130 decreases, so that the desired electromagnetic force cannot be secured. .

For example, the first to fourth terminals B1 to B4 of the circuit board 190 may be positioned higher than the upper surface 11d of the first magnet 130.

Also, for example, the fifth to eighth terminals B5 to B8 of the circuit board 190 may include a housing adjacent to the first side 141-1 of the housing 140 in which the first position sensor 170 is disposed ( It may be located between the two magnet units 130-1 and 130-2 disposed in the two corner portions 142-1 and 142-2 of 140).

The upper surface of the first position sensor 170 may be positioned higher than the upper surface 11d of the first magnet 130, and the lower surface of the first position sensor 170 is the upper surface 11d of the first magnet 130. It can be the same or higher. In another embodiment, the lower surface of the first position sensor 170 may be positioned lower than the upper surface of the first magnet 130.

The first terminal B1 of the circuit board 190 may overlap with the first magnet unit 130-1 disposed in the first corner portion 142-1 of the housing 140 in the optical axis direction, and the circuit board The second terminal B2 of 190 may overlap with the first magnet unit 130-2 disposed in the second corner portion 142-2 of the housing 140 in the optical axis direction.

Also, for example, in the initial position of the bobbin 110, the upper surface of the second magnet 180 (or/and the upper surface of the third magnet 185) may be positioned higher than the upper surface 11d of the first magnet 130. The lower surface of the second magnet 180 (or/and the lower surface of the third magnet 185) may be positioned lower than the upper surface 11d of the first magnet 130.

In another embodiment, the lower surface of the second magnet 180 (or the lower surface of the third magnet 185) may be positioned to have a height equal to or higher than the upper surface 11d of the first magnet 130.

The embodiment includes first to fourth extensions P1 to P4 of the upper elastic units 150-1 to 150-4 and bonding portions 81a to 81d of the lower elastic units 160-1 to 160-4. ) In order to facilitate soldering for electrical connection with and improve solderability, the first to eighth terminals B1 to B8 may be disposed on the second surface 19a of the circuit board 190.

If the first to eighth terminals B1 to B8 are disposed on the first surface 19b of the circuit board 190, soldering becomes difficult, solderability may deteriorate, and foreign matters caused by soldering (for example, , Contaminants) may be introduced into the lens driving device 100, thereby causing a malfunction of the lens driving device.

The third and fourth terminals B3 and B4 are disposed between the first terminal B1 and the second terminal B2, and the circuit board 190 has a first corner portion of the housing 140 to reduce a path. Since it has a structure extending or projecting to the (142-1) and the second corner portion (142-2), a portion of each of the third upper elastic unit (150-3) and the fourth upper elastic unit (150-5) The third and fourth terminals (for example, the third extension P3 or the fourth extension P4) pass through the circuit board 190 and are formed on the second surface 19a of the circuit board 190. (B3,B4).

The fifth to eighth terminals B5 to B8 of the circuit board 190 are extensions S2 of the circuit board 190 to facilitate coupling with the lower elastic units 160-1 to 160-4. ).

In the embodiment, since the magnetic field interference between the second and third magnets 180 and 185 and the first magnet 130 is alleviated, it is possible to prevent the reduction of the AF driving force due to the magnetic field interference, and thereby a separate yoke Even if it is not provided, desired AF driving force can be obtained.

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

In addition, since the number of supporting members is reduced, the resistance of the supporting members can be reduced, thereby reducing the current consumption and improving the sensitivity of the OIS driving.

In addition, instead of reducing the number of supporting members, the thickness of the supporting members can be increased to obtain the same elastic force, and as the thickness of the supporting members increases, the influence of the OIS moving part by external impact can be reduced.

Referring to FIG. 17, the first height in the optical axis direction of the lower or lower surface of the second magnet 180 is smaller than the second height in the optical axis direction of the lower or lower surface of the coil units 120-1 to 120-4. It can be the same. In other embodiments, the first height may be greater than the second height.

For example, the first distance from the lower surface of the bobbin 110 to the lower or lower surface of the second magnet 180 is the first distance from the lower surface of the bobbin 110 to the lower or lower surface of the coil units 120-1 to 120-4. It can be less than or equal to 2 distances. Alternatively, in another embodiment, the first distance may be greater than the second distance.

For example, the height of the lower surface of the first position sensor 170 may be greater than the height of the upper surface of the coil units 120-1 to 120-4. In another embodiment, the height of the lower surface of the first position sensor 170 may be equal to or smaller than the height of the upper surface of the coil units 120-1 to 120-4.

The height of the bottom or bottom surface of the sensing magnet 180 may be lower than the height of the bottom or bottom surface of the sensing magnet 180. For example, the distance from the lower surface of the bobbin 110 to the lower surface of the sensing magnet 180 may be smaller than the distance from the lower surface of the bobbin 110 to the lower surface of the first position sensor 170. Accordingly, the output of the first position sensor 170 according to the result of sensing the magnetic field of the sensing magnet 180 can be increased.

In another embodiment, the height of the bottom or bottom surface of the sensing magnet 180 may be the same as the height of the bottom or bottom surface of the sensing magnet 180.

For example, the height of the upper surface of the sensing magnet 180 may be greater than the height of the upper surface of the first position sensor 170, but is not limited thereto, and in other embodiments, both may be the same.

For example, the height of the upper surface of the sensing magnet 180 may be greater than the height of the upper surface of the magnet 130, and the height of the lower surface of the sensing magnet 180 is smaller than the height of the upper surface of the magnet 130 and the lower surface of the lower surface of the magnet 130. It can be greater than the height.

18 shows electromagnetic forces between the coil units 120-1 to 120-4 and the magnet units 130-1 to 130-4 according to the driving signals I1 to I4.

Referring to FIG. 18, each of the driving signals I1 to I4 may be provided to any one of the coil units 120-1 to 120-4. That is, each of the coil units 120-1 to 120-4 may be individually controlled by the driving signal. For example, a corresponding one of the driving signals I1 to I4 may be provided at one end of each of the coil units 120-1 to 120-4, and each of the coil units 120-1 to 120-4 may be provided. The other end of the can be connected to a common node (common node). For example, the common node may be an upper elastic unit (eg, 150-3 or 150-4) to which the first power signal GND is provided.

For example, at least one of the sizes of the first to fourth driving signals I1 to I4 may be different, but is not limited thereto, and in other embodiments, the first to fourth driving signals I1 to I4 may be different. The sizes may all be the same.

Also, for example, at least one of the current directions of the first to fourth driving signals I1 to I4 may be different, but is not limited thereto, and in other embodiments, the first to fourth driving signals I1 to I4 ) May all be the same.

A first electromagnetic force (eg, B11 or B21) may be generated between the first magnet unit 130-1 and the first coil unit 120-1 by the first drive signal I1, and the second drive signal A second electromagnetic force (eg, B12, or B22) may be generated between the second magnet unit 130-2 and the second coil unit 120-2 by (I2), and the third driving signal I3 may be generated. A third electromagnetic force (eg, B13, or B23) may be generated between the third magnet unit 130-3 and the third coil unit 120-3, and the fourth magnet may be generated by the fourth driving signal I4. A fourth electromagnetic force (eg, B14 or B24) may be generated between the unit 130-4 and the fourth coil unit 120-4.

For example, the direction of each of the first to fourth electromagnetic forces may be an optical axis (OA) direction, a third direction (eg, Z-axis direction), or a direction parallel to the optical axis.

For example, the intensity of each of the first to fourth electromagnetic forces may be proportional to the intensity of any one of the first to fourth driving signals I1 to I4, for example. Also, a direction of each of the first to fourth electromagnetic forces may be determined based on a direction of a current of any one of the first to fourth driving signals I1 to I4.

For example, when the directions of the currents of the first to fourth driving signals I1 to I4 are the same, the directions of the first to fourth electromagnetic forces may be the same (B11, B12, B13, B14) or ( B21, B22, B23, B24)). Further, when the magnitudes (or intensities) of the first to fourth driving signals I1 to I4 are the same, the intensities of the first to fourth electromagnetic forces may be the same.

When the first to fourth electromagnetic forces are in the same direction and have the same intensity, the AF movable part may be moved in the optical axis direction, and tilt of the AF movable part may not occur due to the first to fourth electromagnetic forces.

When the current directions of the first to fourth driving signals I1 to I4 are the same, and when at least one of the sizes of the first to fourth driving signals I1 to I4 are different, the first to fourth electromagnetic forces The directions are the same, but the intensity of at least one of the first to fourth electromagnetic forces may be different. Due to this, the AF movable unit may be tilted based on a plane (eg, XY plane) perpendicular to the optical axis (OA, eg, Z axis).

Also, when at least one of the current directions of the first to fourth driving signals I1 to I4 is different, and at least one of the sizes of the first to fourth driving signals I1 to I4 is different, the first to At least one of the directions of the fourth electromagnetic forces is different, and the intensity of at least one of the first to fourth electromagnetic forces may be different. Due to this, the AF movable unit may be tilted based on a plane (eg, XY plane) perpendicular to the optical axis (OA, eg, Z axis).

Dual or triple cameras are being developed to enhance the functions of optical devices (e.g. mobile phones), and actuators mounted on optical devices interfere with each other by the influence of magnets mounted on each actuator. Can receive

In addition, an increase in electromagnetic force is required to move a large-diameter lens as the resolution of the camera module or optical device increases.

The embodiment is provided with four separate coil units 120-1 to 120-4 instead of the AF coil of one conventional configuration, thereby improving the electromagnetic force for AF driving without changing the spring constant of the elastic member. .

In addition, the embodiment may reduce the magnetic field interference between the magnets of the actuators mounted on the dual or more camera modules, by providing the magnet units (130-1 to 130-4) of the anode magnetizer.

In addition, according to an embodiment, the four movable coil units 120-1 to 120-4 for AF driving are separately driven, so that the OIS movable part can tilt the AF movable part in a direction opposite to the tilt direction. Due to this, the embodiment can compensate for the tilt of the OIS movable part generated when the camera module is manufactured through the tilt control of the AF movable part, thereby improving the performance of the image sensor of the camera module.

In the embodiment of FIGS. 1 to 18, the position sensor is provided through the first to fourth upper elastic units 150-1 to 150-4 and the fifth to eight terminals P1 to P4 of the circuit board 190. First and second power signals GND and VDD, a data signal, and a clock signal are provided to the 170, and the first to fourth lower elastic members 160-1 to 160-4 and the circuit board ( Separate driving signals are provided to the first to fourth coil units 120-1 to 120-4 from the position sensor 170 through the first to fourth terminals B1 to B4 of 190 ). It is not limited.

In another embodiment (hereinafter referred to as "CASE1"), the first to fourth position elastic members and the first to fourth terminals B1 to B4 of the circuit board 190 through the first to the position sensor 170 And second power signals GND and VDD, a data signal, and a clock signal may be provided, and the first to fourth upper elastic units and the fifth to eighth terminals P1 to eight of the circuit board 190 may be provided. A separate driving signal may be provided to the first to fourth coil units 120-1 to 120-4 from the position sensor 170 through P4).

Each of the first to fourth lower elastic units according to another embodiment CASE1 may be coupled to any one of the first to fourth terminals B1 to B4 of the circuit board 190, and the first The fourth to fourth lower elastic units may be electrically connected to the terminals of the circuit board 250, and the first and fourth lower elastic units may receive first and second power signals (through the terminals of the circuit board 250 ). GND, VDD), a data signal, and a corresponding one of a clock signal may be provided.

In another embodiment (CASE1), one end of each of the first to fourth coil units 120-1 to 120-4 corresponds to one of the first to fourth upper elastic units 150-1 to 150-4. Can be coupled to one, the other end of each of the first to fourth coil units (120-1 to 120-4) is provided with a first power signal (GND) of the first to fourth lower elastic units Can be coupled to.

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

Referring to FIG. 19, 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, and an image sensor ( 810), a motion sensor (motion sensor, 820), a control unit 830, and may include a connector (connector, 840).

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

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

The adhesive member 612 may attach or attach the base 210 of the lens driving device 100 to the first holder 600. The adhesive member 612 may serve to prevent foreign matter from entering the lens driving apparatus 100 in addition to the above-described adhesive role.

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

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

An opening may be formed at a portion of the first holder 600 on which the filter 610 is mounted to allow light passing through the filter 610 to enter the image sensor 810.

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

The second holder 800 may be provided with various circuits, elements, controls, and the like in order 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 equipped with an image sensor, a circuit pattern may be formed, and may be implemented as a circuit board to which various elements are coupled. The first holder 600 may be represented by replacing it with a “holder” or a “sensor base”, and the second holder 800 may be represented by replacing it with a “substrate” or a “circuit board”.

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

The filter 610 and the image sensor 810 may be arranged to be spaced apart from 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 rotation angular velocity information by movement of the camera module 200. The motion sensor 820 may be implemented as a 2-axis or 3-axis gyro sensor or an angular velocity sensor.

The control unit 830 is mounted on the second holder 800 and may be electrically connected to the second position sensor 240 of the lens driving apparatus 100 and the second coil 230. For example, the second holder 800 may be electrically connected to the circuit board 250 of the lens driving apparatus 100, and the control unit 830 mounted on the second holder 800 may be provided through the circuit board 250. The two-position sensor 240 and the second coil 230 may be electrically connected to each other.

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

In addition, the control unit 830, based on the output signals provided from the second position sensor 240 of the lens driving device 100, a driving signal capable of performing image stabilization for the OIS movable part of the lens driving device 100 Can be controlled.

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

In addition, the lens driving apparatus 100 according to the embodiment forms an image of an object in a space by using reflection, refraction, absorption, interference, diffraction, etc., which are characteristics of light, and aims to increase the visual acuity of the eye or the lens It may be included in an optical instrument for the purpose of recording and reproducing images by, or for optical measurement, propagation or transmission of images. For example, the optical device according to the embodiment includes a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, PDA (Personal Digital Assistants), PMP (Portable Multimedia Player) ), navigation, and the like, but is not limited thereto, and any device for taking an image or a picture is possible.

20 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 21 is a block diagram of the portable terminal shown in FIG. 20.

20 and 21, the portable terminal (200A, hereinafter referred to as "terminal") is a body 850, a wireless communication unit 710, A / V input unit 720, the sensing unit 740, the input / It may include an output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

The body 850 shown in FIG. 20 is a bar shape, but is not limited thereto, and two or more sub-bodies are slide-type, folder-type, and swing-type coupled to move relative to each other. , It can be of various structures such as swivel type.

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

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

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

The camera 721 may include the camera module 200 according to the embodiment.

The sensing unit 740 displays the current state of the terminal 200A, such as the open/closed state of the terminal 200A, the location of the terminal 200A, the presence or absence of user contact, the orientation of the terminal 200A, the acceleration/deceleration of the terminal 200A, and the like. The sensing signal for sensing and controlling the operation of the terminal 200A may be generated. For example, when the terminal 200A is in the form of a slide phone, it can sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 790 is powered or not, and whether the interface unit 770 is coupled to an external device.

The input/output unit 750 is for generating input or output related to vision, hearing, or tactile sense. 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 key pad unit 730, a display module 751, an audio output module 752, and a touch screen panel 753. The keypad unit 730 may generate input data by inputting the keypad.

The display module 751 may include a plurality of pixels whose color changes according to an electrical signal. For example, the display module 751 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a three-dimensional display. It may include at least one of a display (3D display).

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

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

The memory unit 760 may store programs for processing and control of the control unit 780, and input/output data (eg, phone book, message, audio, still image, photo, video, etc.). Can be stored temporarily. For example, the memory unit 760 may store an image photographed by the camera 721, such as a photo or a video.

The interface unit 770 serves as a passage connected to an external device connected to the terminal 200A. The interface unit 770 receives data from an external device, receives power, transfers it to each component inside the terminal 200A, or allows data inside the terminal 200A to be transmitted to the external device. For example, the interface unit 770 includes a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port connecting a device equipped with an identification module, and audio I/O (Input/ Output) port, a video input/output (I/O) port, and an earphone port.

The controller 780 may control the overall operation of the terminal 200A. For example, the control unit 780 may perform related control and processing for voice calls, data communication, video calls, and the like.

The control unit 780 may include a multimedia module 781 for playing multimedia. The multimedia module 781 may be implemented in the controller 180, or may be implemented separately from the controller 780.

The controller 780 may perform pattern recognition processing to recognize handwriting input or picture drawing input performed on the touch screen as text and images, respectively.

Instead of the controller 830 of the camera module 200, the controller 780 of the optical device 200A is clock signal SCL, data signal SDA, and power signal for I2C communication with the first position sensor 120. (VDD, GND) may be transmitted, and the clock signal SCL and the data signal SDA may 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 required for the operation of each component.

Features, structures, effects, and the like described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, and the like exemplified in each embodiment may be combined or modified for other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

Claims (12)

housing;
A magnet including first to fourth magnet units spaced apart from each other in the housing;
A bobbin disposed in the housing;
A first coil disposed on the bobbin and including first to fourth coil units disposed corresponding to the first to fourth magnet units;
A circuit board disposed on the housing and including first to eighth terminals;
A position sensor disposed on the circuit board;
A sensing magnet disposed on the bobbin and facing the position sensor;
An upper elastic member coupled with an upper portion of the bobbin and an upper portion of the housing;
A lower elastic member coupled with a lower portion of the bobbin and a lower portion of the housing; And
It includes a support member connected to the upper elastic member,
Each of the first to fourth coil units is electrically connected to a corresponding one of the first to fourth terminals of the circuit board,
The position sensor outputs first to fourth driving signals, and each of the first to fourth driving signals is provided to a corresponding one of the first to fourth terminals of the circuit board. According to claim 1,
The lower elastic member includes first to fourth lower elastic units,
Each of the first to fourth coil units is coupled to a corresponding one of the first to fourth lower elastic units and electrically connected to a corresponding one of the first to fourth terminals of the circuit board. Lens driving device. According to claim 2,
The upper elastic member includes first to fourth upper elastic units,
Each of the first to fourth upper elastic units is coupled to a corresponding one of the fifth to eighth terminals of the circuit board,
The position sensor is provided with a first power signal, a second power signal, a clock signal, and a data signal through the fifth to eighth terminals of the circuit board. According to claim 1,
The upper elastic member includes first to fourth upper elastic units,
The lower elastic member includes first to fourth lower elastic units,
Each of the first to fourth upper elastic units is coupled to a corresponding one of the fifth to eighth terminals of the circuit board,
One end of each of the first to fourth coil units is coupled to a corresponding one of the first to fourth lower elastic units,
The other end of each of the first to fourth coil units is a lens driving device coupled to any one of the first to fourth upper elastic units. The method of claim 4,
The position sensor is provided with a first power signal, a second power signal, a clock signal, and a data signal through the fifth to eighth terminals of the circuit board,
The first power signal of the fifth to eighth terminals of the circuit board is provided to any one of the first to fourth coil units, wherein the other end of each of the first to fourth coil units is coupled. Lens driving device that is combined with any one. The method of claim 5,
The voltage of the first power signal is a ground voltage, and the voltage of the second power signal is a predetermined voltage. The method of claim 4,
The support member includes first to fourth support members,
Each of the support members is a lens driving device connected to any one of the first to fourth upper elastic units. According to claim 1,
The first to fourth magnet units are disposed in the first to fourth corner portions of the housing,
The circuit board and the position sensor are disposed between the first corner portion and the second corner portion of the housing. The method of claim 8,
Each of the first to fourth magnet units,
Located between the first magnet portion including a first N-pole and a first S-pole, a second magnet portion including a second N-pole and a second S-pole, and between the first magnet portion and the second magnet portion A lens driving device including a first partition wall. The method of claim 8,
Each of the first to fourth coil units has a coil block or coil ring shape wound in a direction that rotates around a reference straight line,
The reference straight line is a lens driving device that is perpendicular to the optical axis and is a straight line parallel to a direction toward an outer surface of the bobbin in which one of the first to fourth coil units in the optical axis is disposed. According to claim 1,
At least one of the sizes of the first to fourth driving signals is another lens driving device. According to claim 1,
A second coil facing the magnet in the optical axis direction; And
And a second circuit board electrically connected to the support member.

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