KR102491570B1 - A lens moving unit, and camera module and optical instrument including the same - Google Patents

Abstract

The embodiment includes a housing, a bobbin disposed in the housing, a magnet disposed in the housing, a first coil disposed in the bobbin and facing the magnet, an inner frame coupled to the upper part of the bobbin, an outer frame coupled to the upper part of the housing, and an upper elastic member including a frame connecting portion connecting the inner frame and the outer frame, a circuit board disposed below the housing, and a support member electrically connecting the upper elastic member and the circuit board, wherein the upper elastic member comprises the It includes an outer portion coupled to the upper portion of the housing, a first coupling portion coupled to one end of the support member, and a first connection portion connecting the outer portion and the first coupling portion, wherein a width of the first connection portion is smaller than a width of the outer portion.

Description

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

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

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

In the case of a camera module mounted on a small electronic product such as a smartphone, the camera module may be frequently shocked during use, and the camera module may be slightly shaken due to a user's hand shaking during shooting. In view of this point, recently, a technique for additionally installing an anti-shake means to a camera module has been developed.

For information related to the camera module, see Patent Publication No. 10-2015-0008662 (published on January 23, 2015) and US Patent Publication No. US 2011/0141564 (published on June 16, 2011) can do.

Embodiments include a lens driving device capable of preventing disconnection or damage of the second coil due to external impact, enabling soldering of the second coil and the upper spring without separate wire arrangement, and improving solderability, and including the same To provide a camera module, and an optical device.

A lens driving device according to an embodiment includes a housing; a bobbin disposed within the housing; a magnet disposed in the housing; a first coil disposed on the bobbin and facing the magnet; an upper elastic member including an inner frame coupled to an upper portion of the bobbin, an outer frame coupled to an upper portion of the housing, and a frame connecting portion connecting the inner frame and the outer frame; a circuit board disposed below the housing; and a support member electrically connecting the upper elastic member and the circuit board, wherein the upper elastic member includes an outer portion coupled to the upper portion of the housing; A first coupling part coupled to one end of the support member; and a first connection portion connecting the outer portion and the first coupling portion, wherein a width of the first connection portion is smaller than a width of the outer portion.

The bobbin may include a first guide part for guiding the frame connection part. The bobbin may include a protrusion coupled to the inner frame of the upper elastic member.

The bobbin may include a groove for fixing a jig formed on an upper surface thereof, and the groove for fixing a jig may be formed on an upper surface of side parts of the bobbin facing each other.

The lens driving device may include a lower elastic member coupled to a lower portion of the bobbin and a lower portion of the housing, and the housing may include a protrusion coupled to the lower elastic member and disposed at a corner of the housing.

The housing may include a hole through which the support member passes, and the hole may be formed at a corner of the housing. A diameter of the hole of the housing may gradually increase in a direction from an upper surface of the housing to a lower surface of the housing, and the lens driving device may include a damper disposed in the hole of the housing.

The lens driving device may include a cover member accommodating the housing, and the housing may include a second guide part formed at the corner of the housing; and a stopper spaced apart from the second guide portion and formed at the corner of the housing, and when viewed from above, the hole of the housing may be positioned between the second guide portion and the stopper.

The housing may include at least one protrusion coupled to the outer frame of the upper elastic member, and the outer frame of the upper elastic member may include at least one hole coupled to the at least one projection of the housing. The at least one hole of the outer frame may include at least one cutout through which an adhesive member permeates.

The first coil may be electrically connected to at least one of the upper elastic member and the lower elastic member, and a driving signal may be applied to the first coil.

The housing may include a groove formed at a lower portion of a corner of the housing, and the lens driving device may include a damping member disposed in the groove of the housing.

The outer frame of the housing may include a first extension portion extending from the first coupling portion toward the outer portion, and the lens driving device may include a damper disposed on the first extension portion.

The upper elastic member includes first to fourth upper springs, each of the first to fourth upper springs includes the outer frame, and at least one of the first to fourth upper springs includes the outer frame. may be engaged with a side of the housing adjacent to a corner of the housing.

The first coupling portion may include a coupling region to which the one end of the support member is coupled, and a first length of the first extension portion extending in a direction from the first coupling portion toward the outer portion is a length of the first coupling portion. The second length may be greater than the distance between the coupling area and one end of the first coupling portion extending in a direction opposite to the extension direction of the first extension portion.

The outer portion is disposed on the first side of the housing and a second coupling portion coupled to the housing; a third coupling part disposed on a second side of the housing and coupled to the housing; and a second connection portion connecting the second coupling portion and the third coupling portion.

The outer portion may be left and right asymmetrical with respect to a reference line, and the reference line may be a straight line passing through a center of the housing and a corner of the housing.

The lens driving device includes a second coil disposed to face the magnet and moving the housing; a base disposed below the circuit board; and a sensor disposed on the base and electrically connected to the circuit board, wherein the circuit board has first terminals electrically connected to the first coil and a sensor electrically connected to the second coil. It may contain 2 terminals.

A lens driving device according to another embodiment includes a housing; a bobbin disposed within the housing; a magnet disposed in the housing; a first coil disposed on the bobbin and facing the magnet; an upper elastic member including an outer portion coupled to an upper portion of the housing; a circuit board disposed below the housing; a support member electrically connecting the outer portion of the upper elastic member and the circuit board; And a damper disposed on the outer portion of the upper elastic member, wherein the upper elastic member includes a first coupling portion coupled to one end of the support member, and a connection portion connecting the outer portion and the first coupling portion, wherein the The outer portion of the upper elastic member includes a second coupling portion coupled to one portion of the housing and a third coupling portion coupled to another portion of the housing, wherein the connection portion connects the first coupling portion and the second coupling portion. It includes a first connection portion connecting and a second connection portion connecting the first coupling portion and the third coupling portion, wherein a width of the first connection portion is smaller than a width of the second coupling portion and a width of the third coupling portion. A width of the second connection portion may be smaller than a width of the second coupling portion and a width of the third coupling portion.

According to the embodiment, disconnection or damage to the second coil due to external shock can be prevented, the second coil and the upper spring can be soldered without a separate wire arrangement, and solderability can be improved.

1 shows a perspective view of a lens driving device according to an embodiment.
FIG. 2 is an exploded view of the lens driving device shown in FIG. 1 .
FIG. 3 shows a combined view of the lens driving device of FIG. 1 excluding the cover.
4A is a first perspective view of the bobbin and first coil shown in FIG. 1;
FIG. 4B is a second perspective view of the bobbin and first coil shown in FIG. 1;
5A is a first perspective view of the housing shown in FIG. 1;
Figure 5b is a second perspective view of the housing shown in Figure 1;
FIG. 6 shows a cross-sectional view of the lens driving device shown in FIG. 3 in an AB direction.
Figure 7 is a perspective view of the upper elastic member shown in Figure 2;
FIG. 8 shows an enlarged view of the first outer frame of the first upper spring shown in FIG. 7 .
FIG. 9 is a perspective view illustrating a combination of an upper elastic member, a lower elastic member, a third coil, a circuit board, and a base of FIG. 2 .
10 shows an exploded perspective view of a third coil, a circuit board, a base, first and second position sensors, and an amplifier.
11 shows a plan view of FIG. 3 .
FIG. 12A is a perspective view of a first dotted line portion of FIG. 11 .
FIG. 12B is a perspective view of a second dotted line portion of FIG. 11 .
13 shows an extension and a damper according to another embodiment.
14 shows mutual inductance according to the separation distance between the first coil and the second coil.
15 is an exploded perspective view of a camera module according to an embodiment.
16 is a perspective view of a portable terminal according to an embodiment.
FIG. 17 shows a configuration diagram of the portable terminal shown in FIG. 16 .

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

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

For convenience of description, the lens driving device according to the embodiment is described using a Cartesian coordinate system (x, y, z), but it may be described using another coordinate system, and the embodiment is not limited thereto. In each drawing, the x-axis and the y-axis mean directions perpendicular to the z-axis, which is the optical axis direction, and the z-axis direction, which is a direction parallel to the optical axis or the optical axis, is referred to as a 'first direction', and the x-axis direction is referred to as a 'second direction' ', and the y-axis direction may be referred to as a 'third direction'.

An 'image stabilization device' applied to a small camera module of a mobile device such as a smartphone or tablet PC prevents the outline of the captured image from being formed clearly due to vibration caused by the user's hand shake when capturing a still image. It may refer to a device configured to

Also, an 'auto focusing device' is a device that automatically focuses an image of a subject on an image sensor surface. Such an image stabilization device and auto focusing device may be configured in various ways. A lens driving device according to an embodiment moves an optical module composed of at least one lens in a first direction parallel to an optical axis, or in a first direction. The image stabilization operation and/or the auto focusing operation may be performed by moving with respect to the plane formed by the second and third directions perpendicular to the .

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

1 to 3, the lens driving device 100 includes a bobbin 110, a first coil 120, a magnet 130, a housing 140, an upper elastic member 150, and a lower elastic member 160. ), and a second coil 170.

Also, the lens driving device 100 may further include a circuit board 250 .

Also, the lens driving device 100 may further include a support member 220 .

Also, the lens driving device 100 may further include a third coil 230 and position sensors 240 . Also, the lens driving device 100 may further include a cover member 300 and a base 210 .

The cover member 300 will be described.

The cover member 300 accommodates the other components 110 , 120 , 130 , 140 , 150 , 160 , 170 , 220 , 230 , and 250 in an accommodation space formed together with the base 210 .

The cover member 300 may be in the form of a box having an open bottom and including a top plate and side plates, and a lower portion of the cover member 300 may be coupled to an upper portion of the base 210 .

The cover member 300 may have an opening on the upper plate through which a lens (not shown) coupled to the bobbin 110 is exposed to external light.

The material of the cover member 300 may be a non-magnetic material such as SUS to prevent sticking to the magnet 130, but a yoke formed of a magnetic material to increase electromagnetic force by interaction with the first coil 120 (yoke) can also function.

Next, the bobbin 110 will be described.

The bobbin 110 may be equipped with a lens or a lens barrel and is disposed inside the housing 140 .

FIG. 4A is a first perspective view of the bobbin 110 and the first coil 120 shown in FIG. 1 , and FIG. 4B is a second perspective view of the bobbin 110 and the first coil 120 shown in FIG. 1 .

Referring to FIGS. 4A and 4B , the bobbin 110 includes a first protruding part 111 protruding from the upper surface in a first direction, and a second protruding part 111 protruding from the outer circumferential surface of the bobbin 110 in second and/or third directions. 2 protrusions 112 may be included.

The first protrusion 111 of the bobbin 110 may include a first guide part 111a and a first stopper 1111b. The first guide portion 111a of the bobbin 110 may serve to guide the installation position of the upper elastic member 150 . For example, the first guide portion 111a of the bobbin 110 may guide the first frame connection portion 153 of the upper elastic member 150 .

The second protrusion 112 of the bobbin 110 may protrude from the outer circumferential surface 110b of the bobbin 110 in the second and/or third directions. The bobbin 110 may include a second stopper 116 protruding from the lower surface.

The bobbin 110 may include side portions 110b-1 corresponding to or opposite to the magnet 130 and side portions 110b-2 positioned between the side portions 110b-1.

The bobbin 110 may have at least one first coil groove (not shown) in which the first coil 120 is disposed or installed on the outer circumferential surface 110b. The shape and number of grooves for the first coil may correspond to the shape and number of first coils 120 disposed on the outer circumferential surface 110b of the bobbin 110 . In another embodiment, the bobbin 110 may not have a groove for the first coil, and the first coil 120 may be directly wound on and fixed to the outer circumferential surface 110b of the bobbin 110 .

In addition, a protrusion 113 coupled to the hole 151a of the first inner frame 151 of the upper elastic member 150 may be provided on the upper surface of the bobbin 110 .

The protrusion 113 may include a first upper protrusion 113a and a second upper protrusion 113b disposed spaced apart from each other on the side portions 110b-1 of the bobbin 110.

The first upper protrusion 113a is for fusion-bonding with the first inner frame 151 of the upper elastic member 150, and the second upper protrusion 113b is formed through solder or a conductive adhesive member to form the upper elastic member 150. ) for electrical connection with the first inner frame 151. For example, the diameter of the first upper projection 113a may be larger than the diameter of the second upper projection 113b.

The bobbin 110 may have a first lower coupling groove 117 coupled to and fixed to the hole 161a of the lower elastic member 160 on its lower surface. In another embodiment, a support protrusion may be provided on the lower surface of the bobbin 110 to engage with the hole 161a of the lower elastic member 160.

A thread 11 for coupling with a lens or a lens barrel may be provided on the inner circumferential surface 110a of the bobbin 110 . In a state in which the bobbin 110 is fixed by a jig or the like, the thread 11 can be formed on the inner circumferential surface of the bobbin 110, and the upper surface of the bobbin 110 has grooves 15a and 15b for fixing the jig ) can be provided. For example, the grooves 15a and 15b for fixing the jig may be provided on the upper surfaces of the side portions 110b-2 facing each other of the bobbin 110, but are not limited thereto.

Next, the first coil 120 will be described.

The first coil 120 may be a driving coil disposed on the outer circumferential surface 110b of the bobbin 110 and having electromagnetic interaction with the magnet 130 disposed on the housing 140 .

A driving signal (eg, a driving current or voltage) may be applied to the first coil 120 to generate electromagnetic force by interaction with the magnet 130 .

The driving signal applied to the first coil 120 may be an AC signal, for example, an AC current. For example, the driving signal provided to the first coil 120 may be a sine wave signal or a pulse signal (eg, a pulse width modulation (PWM) signal).

Alternatively, in another embodiment, the driving signal applied to the first coil 120 may include an AC signal and a DC signal.

The AF movable part or movable element may move in the first direction by the electromagnetic force generated by the interaction between the first coil 120 and the magnet 130 . The intensity of the electromagnetic force due to the interaction between the first coil 120 and the magnet 130 by controlling the intensity or/and polarity (eg, the direction in which current flows) of the driving signal applied to the first coil 120 and/or By adjusting the direction, it is possible to control the movement of the AF movable unit in the first direction, thereby performing an auto focusing function.

The AF movable part or movable element may include the bobbin 110 elastically supported by the upper elastic member 150 and the lower elastic member 160, and components mounted on the bobbin 110 and moving together with the bobbin 110. . For example, the AF moving unit may include the bobbin 110 , the first coil 120 , and a lens (not shown) mounted on the bobbin 110 .

The first coil 120 may be wound or disposed to surround the outer circumferential surface of the bobbin 110 so as to rotate clockwise or counterclockwise around the optical axis. In another embodiment, the first coil 120 may be implemented in the form of a coil ring wound or disposed in a clockwise or counterclockwise direction around an axis perpendicular to the optical axis, and the number of coil rings is equal to the number of magnets 130. They may be the same, but are not limited thereto.

The first coil 120 may be electrically connected to at least one of the upper elastic member 150 and the lower elastic member 160, the upper elastic member 150 or the lower elastic member 160, and the support member 220 It may be electrically connected to the circuit board 250 through. For example, the first coil 120 may be electrically connected to the third and fourth upper springs 150-3 and 150-4.

Next, the housing 140 will be described.

The housing 140 accommodates the bobbin 110 in which the first coil 120 is disposed.

5A is a first perspective view of the housing 140 shown in FIG. 1, FIG. 5B is a second perspective view of the housing 140 shown in FIG. 1, and FIG. 6 is a lens driving device 110 shown in FIG. shows a cross-sectional view in the AB direction of

Referring to FIGS. 5A, 5B, and 6 , the housing 140 may have a column shape having an opening as a whole, and may include a plurality of side parts 141 and 142 forming the opening.

For example, the housing 140 may include side parts 141 spaced apart from each other and side parts 142 spaced apart from each other. Each of the side parts 141 of the housing 140 may be disposed or located between two adjacent side parts 142, may connect the side parts 142 to each other, and may include a flat surface having a certain depth. there is.

In that the side portions 142 of the housing 140 correspond to the corner region of the housing 140, the side portion 142 of the housing 140 may be expressed as a “corner member”. .

For example, in FIG. 5A , the housing 140 may include first to fourth side parts and first to fourth corner parts 501a to 501d.

The first side and the third side may face each other in a second direction, and the second side and the fourth side may face each other in a third direction.

The first corner portion 501a may be positioned between the first side and the second side of the housing 140, and the second corner portion 501b may be positioned between the second side and the third side of the housing 140. The third corner portion 501c may be located between the third side and the fourth side of the housing 140, and the fourth corner portion 501d may be located between the fourth side of the housing 140 and the first It may be located between the sides.

The side parts 141 of the housing 140 may correspond to or face the side parts 110b-1 of the bobbin 110, and the side parts 142 of the housing 140 may be the side parts of the bobbin 110 ( 110b-2) may correspond to or face, but is not limited thereto.

The magnets 130 (130-1 to 130-4) may be disposed or installed on the side parts 141 of the housing 140, and the support member 220 may be disposed on the side parts 142 of the housing 140. can

The housing 140 may include a magnet mounting portion 141a provided on an inner surface of the side portions 141 to support or accommodate the magnets 130-1 to 130-4.

A first groove 148 for winding or accommodating the second coil 170 may be provided on an outer surface of the housing 140 .

For example, the first groove 148 of the housing 140 may be recessed from the outer surface of the side parts 141 and the outer surface of the side parts 142 of the housing 140, or may have a ring shape, It is not limited to this.

For example, the first groove 148 of the housing 140 may be provided on the top of the outer surface of the side parts 141 and the outer surface of the side parts 142 .

For example, the first groove 148 of the housing 140 may be spaced apart from the upper surface of the housing 140 and may be provided on the magnets 130-1 to 130-4 disposed in the housing 140. .

Grooves 61a, 61b, and 61 may be provided in at least one of the side parts 141 of the housing 140 .

For example, the second groove 61a may be provided on the first side of the housing 140, and the third part 17c of the second coil 170 may be disposed in the second groove 61a. The third groove 61b may be provided on the third side of the housing 140, and the fifth part 17e of the second coil 170 may be disposed.

For example, the groove 61 may be disposed on each of the first to fourth side parts of the housing 140 .

For example, the grooves 61a, 61b, and 61 may be through grooves that pass through the side portion 141 of the housing 140 and have an open top.

In FIG. 5A , two grooves 61a, 61b, and 61 spaced apart from each other are provided on the side 141 of each housing 140, but are not limited thereto.

Each of the grooves 61a, 61b, and 61 may be connected to the first groove 148 and may be positioned above the first groove 148 .

For example, the second groove 61a is formed between the protrusion 143b disposed on the first corner portion 501a and the protrusion 31a disposed on the first side of the housing 140 adjacent to the first corner portion 501a. can be placed in

For example, the third groove 61b is formed between the protrusion 143b1 disposed on the second corner portion 501b and the protrusion 31b disposed on the third side of the housing 140 adjacent to the second corner portion 501b. can be placed in

In addition, the groove 61 is disposed between the protrusion 32b disposed on the third side of the housing 140 and the protrusion 143b disposed on the third corner portion 501c, and disposed on the first side of the housing 140. It may be positioned between the protrusion 32a and the protrusion 143a disposed on the fourth corner portion 501d.

For example, the grooves 61a, 61b, and 61 may be located above the first groove 148 in which the first part 17a of the second coil 170 is disposed, and the grooves 61a, 61b, and 61 The lower portion may have an opening connected to the first groove 148 .

The first and second grooves 61a and 61b of the housing 140 may serve as a passage through which a part and another part of the second coil 170 pass, and the grooves 61a, 61b and 61 of the housing 140 ) may serve as an injection hole for injecting an adhesive for attaching the magnet 130 to the housing 140.

The housing 140 may have a guide protrusion 65 on an inner surface for guiding the adhesive injected into the grooves 61a, 61b, and 61. The guide protrusion 65 may serve to prevent the adhesive from flowing down into the housing 140 .

Side parts 141 of the housing 140 may be disposed parallel to the side plates of the cover member 300 . A hole 147a through which the support member 220 passes may be provided in the side portions 142 of the housing 140 . The hole 147a may have a shape in which a diameter gradually increases from an upper surface to a lower surface of the housing 140 . This is to easily arrange a damper to be described later in the hole 147a.

In addition, in order to prevent direct collision with the inner surface of the cover member 300, a second stopper 144 may be provided on the upper surface of the housing 140. For example, the second stopper 144 may be disposed at each corner of the first to fourth corner portions 501a to 501d of the housing 140, but is not limited thereto.

In addition, when the upper elastic member 150 is disposed on the upper surface of the housing 140, the housing 140 is provided on the upper surface to guide the installation position of the first outer frame 152 of the upper elastic member 150. 2 guide parts 146 may be provided.

The second guide part 146 may be spaced apart from the second stopper 144 and disposed at corner parts 501a to 501d of the housing 140 . For example, the second guide part 146 and the second stopper 144 may face each other in a diagonal direction. Here, the diagonal direction may be a direction from the center of the housing 140 toward the second stopper 144 .

The housing 140 has at least one first protrusion 143a provided on the upper surface of the side parts 142 for coupling with the holes 152a1 and 152a2 of the first outer frame 152 of the upper elastic member 150, 143b, 143a1, 143b1) may be provided.

The first protrusions 143a, 143b, 143a1, and 143b1 may be disposed on an upper surface of at least one of the first to fourth corner portions 501a to 501d of the housing 140.

For example, the housing 140 includes first protrusions 143a and 143a1 disposed on one side of the second guide portion 146 and first protrusions 143b and 143b1 disposed on the other side of the second guide portion 146. can include

For example, the first protrusions 143a and 143b may have the same shape, but are not limited thereto, and at least one of the first protrusions 143a and 143b may have a shape different from that of the first protrusions 143a and 143b.

In addition, the housing 140 has at least one second protrusion 32a, 32b provided on the upper surface of the side parts 142 for coupling with the hole 26 of the first outer frame 152 of the upper elastic member 150. ) can be provided.

For example, the second protrusions 32a and 32b may be disposed on upper surfaces of two side parts 141 facing each other among the side parts 141 of the housing 140, but are not limited thereto.

For example, the second protrusion 32a may be located on any one side part 141 of the housing 140 adjacent to the first corner part 501a, for example, on the upper surface of the first side part. The second protrusion 32b may be located on the upper surface of the third side portion 141 of the other side of the housing 140 adjacent to the second corner portion 501b.

For example, the second protrusions 32a and 32b may be located on two side parts 141 of the housing 140 facing each other in the second or third direction.

In addition, the housing 140 is provided on the upper surface of the side parts 141 of the housing 140 to stably fix a part (eg, line of sight) and another part (eg, vertical line) of the second coil 170. Protrusions 31a and 31b may be provided.

For example, the protrusions 31a and 32b may be disposed on upper surfaces of two opposite sides among the side portions 141 of the housing 140, for example, a first side portion and a third side portion of the housing 140. . Also, the protrusions 31a and 32b may be disposed on the first and third sides of the housing 140 where the second protrusions 32a and 32b are located.

For example, the first protrusion 31a is disposed on the first protrusion 143b disposed on the first corner portion 501a and on the upper surface of the first side of the housing 140 adjacent to the first corner portion 501a. It may be disposed between the second protrusions 32a.

In addition, for example, the second protrusion 31b is disposed on the upper surface of the third side of the housing 140 adjacent to the first protrusion 143b1 disposed on the second corner portion 501b and the second corner portion 501b. It may be disposed between the second projections 32b.

For example, the first groove 61a includes a first protrusion 143b disposed on the first corner portion 501a and a first protrusion disposed on the first side of the housing 140 contacting the first corner portion 501a ( 31a), and the second groove 61b is a second protrusion 143b1 disposed at the second corner portion 501b and a third side portion of the housing 140 in contact with the second corner portion 501b. It may be located between the second protrusions (31b) disposed on.

This is because the first and second grooves 61a and 61b are located adjacent to the corresponding one of the first and second protrusions 31a and 32b, so that a part of the second coil 170 and another part of the second coil 170 can be easily This is to be wound around the first and second protrusions 31a and 32b.

In addition, the housing 140 has at least one provided on the lower surface of the side parts 142 of the housing 140 for coupling and fixing to the hole 162a of the second outer frame 162 of the lower elastic member 160. A protrusion 145 may be provided. For example, the protrusion 145 may be disposed on at least one of the first to fourth corner portions 501a to 501d of the housing 140, but is not limited thereto.

In order to secure a path through which the support member 220 passes, as well as to secure a space for filling silicon that can act as a damper, the housing 140 has a groove 142a provided at the bottom of the side portion 142. can be provided For example, damping silicon may be filled in the recess 142a of the housing 140 .

The housing 140 may include a third stopper 149 protruding from the outer surface of the side parts 141 in the second or third direction. For example, in 5a, the housing 140 includes two stoppers 149a and 149b spaced apart from each other on the outer surface of the side parts 141, but is not limited thereto.

The third stopper 149 is to prevent collision with the inner surface of the side plate of the cover member 300 when the housing 140 moves in the second and third directions.

In order to prevent the bottom surface of the housing 140 from colliding with the base 210, the third coil 230, and/or the circuit board 250 to be described later, the housing 140 has a fourth stopper protruding from the bottom surface (not shown) may be further provided.

Next, the magnets 130 (130-1 to 130-4) will be described.

The magnets 130-1 to 130-4 are disposed inside the side parts 141 of the housing 140, but are not limited thereto. In another embodiment, the magnets 130-1 to 130-4 may be disposed outside the side parts 141 of the housing 140.

At the initial position of the bobbin 110, the magnet 130 may be disposed on the side parts 141 of the housing 140 to correspond to or be aligned with the first coil 120 in a direction perpendicular to the optical axis direction.

For example, the magnets 130-1 to 130-4 disposed on the housing 130 may overlap the first coil 120 in the second or third direction at the initial position of the bobbin 110. there is.

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

In addition, the initial position of the bobbin 110 is the position where the AF movable part is placed when gravity acts in the direction from the bobbin 110 to the base 210 or, conversely, when gravity acts in the direction from the base 210 to the bobbin 110. can be The AF movable unit may include the bobbin 110 and components mounted on the bobbin 110, for example, the first coil 120.

In another embodiment, the magnet mounting portion 141a is not provided on the side portions 141 of the housing 140, and the magnet 130 is disposed either outside or inside the side portions 141 of the housing 140. It could be.

The shape of the magnet 130 may have a shape corresponding to the side portions 141 of the housing 140, for example, a rectangular parallelepiped shape, but is not limited thereto.

The magnet 130 may be a unipolar magnet or a bipolar magnet disposed so that the side facing the first coil 120 has the S pole and the outer side has the N pole. However, it is not limited thereto, and a converse configuration is also possible.

In the embodiment, the number of magnets 130 is four, but is not limited thereto, and the number of magnets 130 may be at least two, and the surface of the magnet 130 facing the first coil 120 is flat. It may be formed as, but is not limited thereto and may be formed as a curved surface.

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

The upper elastic member 150 and the lower elastic member 160 are coupled to the bobbin 110 and the housing 140 and elastically support the bobbin 110 .

For example, the upper elastic member 150 may be coupled to the top, top surface, or top of the bobbin 110 and the top, top surface, or top of the housing 140, and the lower elastic member 160 may be coupled to the bobbin 110 ) and the bottom, lower surface, or lower end of the housing 140.

Figure 7 is a perspective view of the upper elastic member 150 shown in Figure 2, Figure 8 shows an enlarged view of the first outer frame 152 of the first upper spring (150-1) shown in Figure 7, 9 shows a combined perspective view of the upper elastic member 150, the lower elastic member 160, the third coil 230, the circuit board 250, and the base 210 of FIG. 2, and FIG. 10 is the third coil ( 230), the circuit board 250, the base 210, the first and second position sensors 240a and 240b, and the amplifier 310 are separated perspective views.

7 to 10, at least one of the upper elastic member 150 or the lower elastic member 160 may be divided or separated into two or more.

For example, the upper elastic member 150 may include first to fourth upper springs 150-1 to 150-4 spaced apart from each other. Here, "upper spring" may be expressed as "spring".

The upper elastic member 150 and the lower elastic member 160 may be implemented as leaf springs, but are not limited thereto, and may be implemented as coil springs, suspension wires, and the like.

Each of the first to fourth upper springs 150-1 to 150-4 is coupled to the top, the top surface, or the top of the bobbin 110, the first inner frame 151, the top, and the top of the housing 140. It may include a first outer frame 152 coupled to a surface or an upper end, and a first frame connecting portion 153 connecting the first inner frame 151 and the first outer frame 152 .

For example, the first frame connection part 153 may connect the first outer frame 152, for example, the third coupling part 510-2 and the inner frame.

Each of the first and second frame connection parts 153 and 163 of the upper and lower elastic members 150 and 160 may be bent or curved (or curved) at least once to form a pattern having a predetermined shape. . The bobbin 110 may be elastically (or elastically) supported for upward and/or downward motion in the first direction through a change in position and fine deformation of the first and second frame connectors 153 and 163 .

The first outer frame 152 of each of the first to fourth upper springs 150-1 to 150-4 includes an outer portion 510 coupled to the housing 140, support members 220-1 to 220-4 It may include a first coupling portion 520 coupled to and a first connection portion 530 connecting the outer portions 510a to 510d and the first coupling portion 520 .

Also, the first coupling portion 520 may include a first extension portion 540 extending from the first coupling portion 520 toward the outer portions 510a to 510d.

The outer parts 510a to 510d may be disposed on a corner part and a side part 141 of at least one housing 140 adjacent thereto.

For example, the outer portions 510a to 510d may be at least one of a corner of the housing 140, a side of the housing 140 adjacent to the corner, or another side of the housing 140 adjacent to the corner. can be combined

For example, the first outer portion 510a is disposed on the first side of the housing 140 and is coupled to the second coupling portion 510-1 coupled to the housing 140, and the second adjacent to the first side of the housing 140. The third coupling part 510-2 disposed on the side and coupled to the housing 140, and the second connection part 510-2 connecting the second coupling part 510-1 and the third coupling part 510-2. 3) may be included.

The first outer frame of at least one of the first to fourth upper springs 150-1 to 150-4 includes an outer portion disposed at a side portion of the housing 140 without being disposed at a corner portion, a first coupling portion, and a first outer frame. 1 may include a connecting portion connecting the coupling portion and the outer portion. In this case, the outer portion may not be coupled to the housing at the corner portion, but may be coupled to the housing at a side portion of the housing adjacent to the corner portion.

The first connection part 530 includes a third connection part 530a connecting the second coupling part 510-1 and the first coupling part 520, and a third coupling part 510-2 and the first coupling part ( 520) may include a fourth connection portion 530b.

The first extension part 540 may be spaced apart from the outer part 510a. The first extension portion 540 may include a portion whose width increases as it extends from the first coupling portion 520 toward the outer portion 510a. For example, the first extension part 540 may include a part whose width increases as it extends from the first coupling part 520 toward the central point 101 of the upper springs 150-1 to 150-4.

For example, the portion where the width of the first extension 540 is widened may have a fan shape, and when the coupling area 520a is the center, the central angle θ1 of the first extension 540 in the fan shape, FIG. 13 Reference) may be 40 degrees to 160 degrees. If the central angle (θ1, see FIG. 13) of the first extension 540 is less than 40 degrees, the effect of improving solderability may be insignificant, and if the central angle of the first extension 540 is greater than 160 degrees, the first connection part ( 530) and spatial interference may occur.

A portion of the first extension portion 540 corresponding to the outer portion 510a may have a shape corresponding to that of the outer portion 510a.

For example, the first extension part 540 may be spaced apart from each of the third connection part 530a and the fourth connection part 530b.

The first extension part 540 is a second extension part extending from the first coupling part 520 to the second coupling part 510-1, and from the first coupling part 520 to the third coupling part 510-2. It may include a third extension part extending to , and a fourth extension part extending from the first coupling part 520 to the second connection part 510 - 3 .

The damping member 91 may connect the first extension part 540 and the outer part 510a. For example, the damping member 91 may be disposed between the first extension part 540 and the second connection part 510-3.

For example, the second coupling portion 510-1 may include a hole 152a2 coupled to the second protrusion 143b of the housing 140, and the third coupling portion 510-2 may include the housing 140. It may include a hole 152a1 coupled with the second protrusion 143a.

For example, the second coupler 510-1 may be positioned on one side of the reference line (eg, 501), and the third coupler 510-2 may be positioned on the other side of the reference line (eg, 501). there is.

In the embodiments of FIGS. 7 and 8 , each of the second coupling part 510-1 and the third coupling part 510-2 is implemented to include through holes 152a1, 152a2, 25, and 26, but are limited thereto. In other embodiments, the second and third coupling parts may be implemented in various shapes sufficient to be coupled with the housing 140, such as a groove shape.

For example, each of the holes 152a1 and 152a2 may have at least one cutout 21a through which an adhesive member penetrates between the protrusions 143a and 143b and the holes 152a1 and 152a2.

The second coupling part 510-1 includes the first corner part 501a and the holes 152a2 and 26 located in the first side of the housing adjacent to the first corner part 501a, and the holes 152a2 and 26 A groove 81 positioned between them may be provided.

For example, the second coupling part 510-1 is disposed in the first corner part 501a and connected to the first region S1 in which the hole 152a2 is disposed, and the first region S1 and connected to the first corner part It may include a second region S2 disposed to extend to the upper surface of the first side of the housing 140 adjacent to (501a).

For example, the second coupling part 510-1 is disposed in the first corner part 501a and is connected to the first region S1 in which the hole 152a2 is disposed, and the first region S1 and is connected to the first corner part. It may include a second region S2 disposed to extend to the upper surface of the first side of the housing 140 adjacent to (501a).

For example, in another embodiment, the second coupling unit may be disposed on at least one of the first corner portion or any one side of the housing 140 adjacent to the first corner portion, and may be disposed on the first corner portion or the first corner portion. It may be coupled to at least one of either side of the neighboring housing 140 .

A groove 81 into which the protrusion 31a of the housing 140 is inserted may be provided in the second area S2, and the second protrusion 32a of the housing 140 is formed at one end of the second area S2. A coupling hole 26 may be provided.

For example, the first protrusion 143b of the first corner portion 501a of the housing 140 and the hole 152a2 of the second coupling portion 510-1 may be fusion-bonded, and the second coupling portion 510-1 of the housing 140 may be fused. The protrusion 32a and the hole 26 of the second coupling part 510-1 may be fusion-bonded. Fusion bonding may mean that the second protrusion 32a is bonded to the upper spring by heat.

Since the protrusions 143b and 32a located on both sides of the first protrusion 31a of the housing 140 are fusion-bonded to the outer portion of the first upper spring 150-1 of the upper spring 150-1, In an example, the first outer portion 510a of the first upper spring 150-1 may be stably fixed to the housing 140, and one end of the second coil 170 may be stably fixed to the first upper spring 150-1. ) may be coupled to the first outer portion 510a. Accordingly, the embodiment can prevent disconnection or damage of the second coil 170 due to external impact.

The third coupling portion 510-2 may include at least one hole 152a1 located in at least one of the first corner portion 501a or the other side of the housing 140 adjacent to the first corner portion 501a. , 25) may be provided.

For example, the third coupling part 510 - 2 is disposed on the first corner part 501a and is connected to the third area S3 where the hole 152a1 is disposed and the third area S3 and is connected to the first corner part. It may include a fourth region S4 disposed extending to the upper surface of the other side of the housing 140 adjacent to (501a).

A hole 25 for coupling with the housing 140 through an adhesive member may be provided at one end of the fourth region S4 . The shape of the hole 25 in FIG. 8 is a cross shape, but the shape is not limited thereto, and may be, for example, a circular shape, an elliptical shape, or a polygonal shape.

For example, in another embodiment, the third coupling part may be disposed on at least one of the first corner part or the other side of the housing 140 adjacent to the first corner part, and may be disposed on the first corner part or the first corner part. It may be coupled to at least one of the other sides of the housing 140 adjacent to the unit.

The second connection part 510-3 may connect the second coupling part 510-1 and the third coupling part 510-2.

For example, the second connection part 510-3 may connect the first area S1 of the second coupling part 510-1 and the third area S3 of the third coupling part 510-2, and the housing The installation position may be guided by the second guide 146 of (140).

For example, the second connection portion 510-3 may have a convex shape in the direction from the center point 101 to the first corner portion 501a of the housing 140, but is not limited thereto, and the corner portion of the housing 140 ( In 501b), it may be convex in a direction toward the center of the housing 140 .

The first coupling part 520 may have a hole 52 through which the support member 220 passes. One end of the support member 220 passing through the hole 52 may be coupled to the first coupling portion 520 by a conductive adhesive member or solder 910, and the first coupling portion 520 and the support member 220 ) can be electrically connected.

The first coupling portion 520 may include a coupling region 520a coupled to the support member 220 by solder 901, and the coupling region 520a has a hole 52 and the solder 901 disposed thereon. A region around the hole 520 may be included.

The first connection part 530 may connect at least one of the second coupling part 510-1 or the third coupling part 510-2 to the first coupling part 520.

For example, the first connection part 530 includes a third connection part 530a connecting the first region S1 of the second coupling part 510-1 and the first coupling part 520, and a third coupling part ( It may include a fourth connection part 530b connecting between the third area S3 of 510-2 and the first coupling part 520.

Each of the third connection portion 530a and the fourth connection portion 530b may include a bent portion bent at least once or a curved portion bent at least once, but is not limited thereto, and may have a straight line shape in other embodiments.

The width W31 of the first connection part 530 is the first widths W11 and W12 of the second coupling part 510-1, the second widths W21 and W22 of the third coupling part 510-2, And it may be narrower than the third width W3 of the second connection part 510-3.

For example, the first widths W11 and W12 may be the smallest widths among the entire widths of the second coupling portion 510-1, and the second widths W21 and W22 are the widths of the third coupling portion 510-2. It may be the minimum width among the widths of all regions, and the third width W3 may be the minimum width among the widths of all regions of the second connector 510 - 3 .

Since W31<W12, W31<W22, and <W31<W3, the first connection part 530 can be easily moved in the first direction, and thus the stress applied to the upper elastic member 150 and the support member ( 220) can be dispersed.

The first extension part 540 may extend by a predetermined length L1 in a direction from the coupling area 520a of the first coupling part 520 toward the outer portion 510a (hereinafter referred to as “extension direction”). .

For example, the preset length L1 may be 0.1 mm to 2 mm. When L1 is less than 0.1 mm, the area of the first extension part 540 is small and the heat dissipation effect is insignificant, so solderability may not be improved. When L1 exceeds 2 mm, the spatial area of the first connection part 530 and the outer portion Interference may occur.

For example, L1 may be 0.2 mm to 1.2 mm in order to sufficiently secure interference with the first connection portion 530 and the outer portion while improving solderability.

For example, the extension direction is from the coupling area 520a of the first coupling portion 520 to the second coupling portion 510-1, the third coupling portion 510-2, or the second coupling portion 510 of the outer portion 510a. It may be a direction directed to at least one of -3).

The first length L1 of the first coupling portion 520 may be longer than the second length L2 of the first coupling portion 520 . The first length L1 may be a distance from the coupling area 520a to one end of the first coupling portion 520 extending in the extension direction of the first extension portion 540 . The second length L2 may be a distance from the coupling area 520a to the other end of the first coupling portion 520 extending in a direction opposite to the extending direction of the first extension portion 540 .

The length L1 of the first extension 540 is the distance L2 from the coupling area 520a of the first coupling portion 520 to the end of the first coupling portion 520 located in the opposite direction to the extension direction. may be longer (L1>L2).

Also, for example, the area of the upper surface of the first extension part 540 may be larger than the area of the upper surface of the first coupling part 520 .

The first extension part 540 serves to increase the heat transfer area to the first coupling part 520 and improve solderability during soldering for coupling the first coupling part 520 and the support member 220 together. can do.

The first extension part 540 may be spaced apart from the outer part 510a and the first connection part 530 .

For example, the first extension part 540 includes the first area S1 of the second coupling part 510-1, the third area S3 of the third coupling part 510-2, and the second connection part 510-2. 3), it may be spaced apart from the third connection part 530a and the third connection part 530b.

The distance between the first extension part 540 and the second connection part 510-3 and the distance between the first area S1 of the first extension part 540 and the second coupling part 510-1 and the first extension It may be shorter than the separation distance between the part 540 and the third area S3 of the third coupling part 510-2, but is not limited thereto.

For example, the separation distance between the first extension part 540 and the second connection part 510-3 may be 0.03 mm to 0.2 mm. When the separation distance between the first extension part 540 and the second connection part 510-3 is less than 0.03 mm, spatial interference between the first extension part 540 and the second connection part 510-3 may occur, When the separation distance between the first extension part 540 and the second connection part 510-3 exceeds 0.2 mm, the distance between them widens and the gap between the first extension part 540 and the second connection part 510-3 increases. It is difficult to form a damper on

In order to sufficiently secure the exclusion of such spatial interference and the ease of forming the damper, for example, the separation distance between the first extension part 540 and the second connection part 510-3 may be 0.06 mm to 0.15 mm.

The shape of the first extension part 540 may be a shape in which the width increases in the extension direction in order to increase the heat transfer area, but is not limited thereto, and may be implemented in various shapes.

For example, the first extension 540 includes at least one first vertex M1 located on the left side with respect to the reference line 501 and at least one second vertex M1 located on the right side with respect to the reference line 501 ( M2) may have a shape including, but is not limited thereto.

In order to support the housing 140 in a balanced way so as not to be biased to either side, the outer portion 510 may be symmetrical with respect to the reference line, but is not limited thereto, and may not be symmetrical in other embodiments.

For example, the second to third couplers and the second connectors 510-1 to 510-3 may be symmetrical with respect to the reference line (eg, 501), but are not limited thereto.

In addition, in order to support the housing 140 in a balanced way so as not to be biased to either side, the first coupling part 520 may be left-right symmetrical with respect to the reference line, but is not limited thereto, and may not be left-right symmetrical in other embodiments. there is.

In addition, in order to support the housing 140 in a balanced manner so as not to be biased to either side, the first connection part 530 may be symmetrical with respect to the reference line, but is not limited thereto, and may not be symmetrical in other embodiments. .

In addition, in order to support the housing 140 in a balanced way so as not to be biased to either side, the first extension part 540 may be symmetrical with respect to the reference line, but is not limited thereto, and may not be symmetrical in other embodiments. there is.

The reference lines 501 to 504 may be straight lines passing through the center point 101 (see FIG. 7 ) and corresponding one of the corners of the corner portions 501a to 501d of the housing 140 .

Here, the central point 101 may be the center of the housing 140 or the center of positions of the upper springs 150-1 to 150-4.

In addition, for example, the first frame connecting portion 153 of the first to fourth upper springs 150-1 to 150-4 is rotated (eg, rotated 90°) about the center point 101 (see FIG. 7) and is symmetrical. can

For example, each of the second to fourth upper springs 150-2 to 150-3 may have a shape similar to or identical to that of the first upper spring. For example, the description of the first upper spring 150-1 of FIG. 8 may be applied to each of the second to fourth upper springs 150-2 to 150-3.

The second to fourth outer parts 510b to 510d of the second to fourth upper springs 150-2 to 150-4 respectively include a first coupling portion, a second coupling portion, a third coupling portion, and a second coupling portion. Connections may be included.

The shape of the first coupling portion of the second to fourth outer parts 510b to 510d may be the same as the shape of the first coupling portion 520 of the first upper spring 150-1, and the description thereof may be applied. there is. That is, the description of the first coupling portion 520 of the first outer portion 510a may be applied to the first coupling portion of each of the second to fourth outer portions 510b to 510d.

The shape of the second coupling part or the third coupling part of at least one of the second to fourth outer parts 510b to 510d may be different from the shape of the second coupling part or the third coupling part of the first outer part.

For example, the second coupling part of the second outer portion 510b is disposed in one region of the second corner portion 501b and has a hole 152a2 coupled to the first protrusion 143a1 of the second corner portion 501b. 1 area may be included. An area corresponding to the second area S2 of the second coupling portion 510-1 of the first outer portion 510a may not be provided in the second coupling portion of the second outer portion 510b. Alternatively, the second coupling portion of the second outer portion 510b may include a region corresponding to the second region of the second coupling portion 510-1 of the first outer portion 510a, but may have a shorter length. .

The third coupling portion of the second outer portion 510b is disposed in another region of the second corner portion 501b and has a hole 152a1 coupled to the first protrusion 143b1 of the second corner portion 501b. It may include three regions and a fourth region connected to the third region and extending to the upper surface of the third side of the housing 140 adjacent to the second corner portion 501b.

A groove 81 into which the protrusion 31b of the housing 140 is inserted may be provided in the fourth area of the second outer portion 510b, and at one end of the fourth area, the second protrusion 32b of the housing 140 is formed. A hole 26 to which is coupled may be provided.

For example, the first protrusion 143b of the second corner portion 501b of the housing 140 and the hole 152a1 of the second coupling portion of the second outer portion 510b may be fusion-bonded. The second protrusion 32b and the hole 26 of the second coupling portion of the second outer portion 510b may be fusion-bonded.

Since the protrusions 143b1 and 32b located on both sides of the second protrusion 31b of the housing 140 are fusion-bonded to the second outer portion 510b of the second upper spring 150-2, the embodiment is the first. 2 The second outer portion 510b of the upper spring 150-2 may be stably fixed to the housing 140, and the other end of the second coil 170 may be stably attached to the second upper spring 150-2. 2 can be coupled to the outer portion 510b. Accordingly, the embodiment can prevent disconnection or damage of the second coil 170 due to external impact.

For example, the second coupling part of the third outer portion 510c may include a first area disposed in one area of the third corner portion 501c and having a hole coupled with the first protrusion of the third corner portion 501c. . An area corresponding to the second area S2 of the second coupling portion 510-1 of the first outer portion 510a may not be provided in the second coupling portion of the third outer portion 510c. Alternatively, the second coupling part of the third outer portion 510c may include a region corresponding to the second region S2 of the second coupling portion 510-1 of the first outer portion 510a, but the length may be longer. can be short

The third coupling portion of the third outer portion 510c may be the same as the third coupling portion 510-2 of the first outer portion 510a, and the third coupling portion 510-2 of the first outer portion 510a The description may be applied to the third coupling part of the third outer part 510c.

The second coupling portion of the fourth outer portion 510d is disposed in one area of the fourth corner portion 501d and is provided with a hole 152a2 coupled to the first protrusion 143b of the fourth corner portion 501d. , and a second region connected to the first region and extending to the upper surface of the fourth side of the housing 140 adjacent to the fourth corner portion 501d.

The third coupling portion of the fourth outer portion 510d is disposed in another area of the fourth corner portion 510d and has a hole 152a1 coupled to the first protrusion 143a of the fourth corner portion 501d. area can be included. An area corresponding to the fourth area of the first outer portion 510a may not be provided in the third coupling part of the fourth outer portion 510d. Alternatively, a region corresponding to the fourth region of the third coupling portion 510-2 of the first outer portion 510a may be provided in the third coupling portion of the fourth outer portion 510d, but the length may be shorter. .

Description of the second connection part of the first outer part 501a may be applied to the second connection part of each of the second to fourth outer parts 501b to 510d.

In FIG. 7 , the shape of the first outer portion 510a is partially different from the shape of the second to fourth outer portions 510b to 510d, but is not limited thereto. For example, in another embodiment, each of the first to fourth outer parts may have the same shape as the first outer part 510a of FIG. 7 .

In another embodiment, the shape of at least one of the first to fourth outer parts of the upper elastic member 150 is the same as the shape of any one of the second to fourth outer parts 510b to 510d, or the second to fourth outer parts 510b to 510d. It may be implemented as a combination of selected ones from among the four outer parts 510b to 510d.

The lower elastic member 160 includes a second inner frame 161 coupled to the bottom, lower surface, or lower end of the bobbin 110, and a second outer frame coupled to the lower, lower surface, or lower end of the housing 140 ( 162), and a second frame connecting portion 163 connecting the second inner frame 161 and the second outer frame 162.

In addition, the lower elastic member 160 is disposed on the second inner frame 161, and the hole 161a coupled to the first lower coupling groove 117 of the bobbin 110 by soldering or a conductive adhesive member, and the second A hole 162a disposed on the outer frame 162 and coupled to the second protrusion 147 of the housing 140 may be provided.

Each of the first and second frame connection parts 153 and 163 of the upper and lower elastic members 150 and 160 may be bent or curved (or curved) at least once to form a pattern having a predetermined shape. . The bobbin 110 may be elastically (or elastically) supported for upward and/or downward motion in the first direction through a change in position and fine deformation of the first and second frame connectors 153 and 163 .

The lens driving device 100 includes a damping member or damper 91 disposed between the second connection portion 510-3 of the upper springs 150-1 to 150-4 and the first extension portion 540 (see FIG. 12A). ) may be further provided. The damper 91 may serve to absorb or dampen vibration of the support member 220 or buffer the movement of the support member 220 .

For example, the damper 91 may contact the second connection portion 510-3 and the first extension portion 540, and may contact the second coupling portion 510-1 and the third coupling portion 510-2. It may be spaced apart, but is not limited thereto.

For example, the damper 91 may be disposed between the side surfaces of the second connection portion 510-3 and the side surface of the first extension portion 540 facing each other. Also, for example, the damper 91 may be disposed on the upper or/or lower surface of the second connection part 510-3, or may be disposed on the upper or/or lower surface of the first extension part 540.

In addition, the damper 91 may be spaced apart from the corner portions 501a to 501d of the housing 140, but is not limited thereto. In another embodiment, the damper 91 may contact the corner portions 501a to 501d of the housing 140 .

13 shows a first extension part 540a and a damper 92 according to another embodiment.

Referring to FIG. 13, the first extension part 540 shown in FIG. 8 extends from the first coupling part 520 to the second connection part 510-3, but the first extension part 540a shown in FIG. 13 ) is the second extension part 540-1 extending from the first coupling part 520 to the second coupling part 510-1, and from the first coupling part 520 to the third coupling part 510-2. The third extension part 540-2 extends, and the second extension part 540-1 and the third extension part 540-2 extend from the first coupling part 520 to the second connection part 510-3. ) may include a fourth extension part 540-3 connecting them to each other.

The first extension portion 540a of FIG. 13 can further increase an area for transferring heat to the first coupling portion 520 during soldering for coupling the first coupling portion 520 and the support member 220. Solderability can be further improved.

In FIG. 8 , the first separation distance D1 between the second connection portion 510-3 and the first extension portion 540 is the second separation distance between the second coupling portion 510-1 and the first extension portion 540. (D3) and the third separation distance (D2) between the third coupling part 510-2 and the first extension part 540.

On the other hand, in the embodiment of FIG. 13 , the first separation distance D1 between the second connection part 510-3 and the first extension part 540a is the distance between the second coupling part 510-1 and the first extension part 540a. ), and the third separation distance D3 between the third coupling part 510-2 and the first extension part 540a. Due to this, the embodiment can increase the heat transfer area of the first extension part 540a, for example, the area of the upper and lower surfaces of the first extension part 540a, and improve solderability.

For example, D1, D2, and D3 may be 0.03 mm to 0.2 mm.

In addition, in order to eliminate spatial interference between the first extension part 540a and the combining parts and to facilitate the damper formation, for example, D1, D2, and D3 may be 0.06 mm to 0.15 mm.

In addition, the lens driving device 100 is provided between the second coupling portion 510-1 and the second extension portion 540-1, between the third coupling portion 510-2 and the third extension portion 540-2, and a damping member or damper 92 disposed between at least one of the second connection portion 510-3 and the fourth extension portion 540-3, and the damping member or damper 92 is a support member It may play a role of absorbing or dampening the vibration of the 220 or buffering the movement of the support member 220 .

For example, the damping member or damper 92 is provided between the side surfaces of the second and third coupling portions 510-1 and 510-2 and the side surface of the first extension portion 540a, and between the second connection portion 510-3. It may be disposed between the side surface and the side surface of the first extension part 540a, and may be disposed between the side surface of the second to third coupling parts 510-1 and 510-3, the side surface of the second connection part 510-3, and the second connection part 510-3. 1 may contact the side of the extension part 540a.

Also, for example, the damping member or damper 92 may be disposed on the upper or/or lower surface of at least one of the second to third coupling parts 510-1 and 510-2 and the second connection unit 510-3. and may be disposed on the upper or/or lower surface of the first extension part 540a.

For example, in another embodiment, the damping member may be disposed only between the second connection part 510-3 and the first extension part 540a, and in this case, D1 may be smaller than D2 and D3, but is not limited thereto, and D1 may be greater than D2 and D3.

In addition, the damping member or damper 92 may be spaced apart from the corner portions 501a to 501d of the housing 140, but is not limited thereto. In another embodiment, the damping member or damper 92 may contact the corner portions 501a to 501d of the housing 140 .

In order to absorb and buffer the vibration of the bobbin 110, the lens driving device 100 includes a first damping member (not shown) disposed between each of the upper elastic members 150-1 to 150-4 and the housing 140. ) may be further provided.

For example, a first damping member (not shown) may be disposed in a space between the first frame connecting portion 153 of each of the upper springs 150-1 to 150-4 and the housing 140.

Also, for example, the lens driving device 100 may further include a second damping member (not shown) disposed between the second frame connecting portion 163 of the lower elastic member 160 and the housing 140 .

Also, for example, the lens driving device 100 may further include a third damping member disposed between the supporting member 220 and the hole 147a of the housing 140 .

Also, for example, the lens driving device 100 may further include a fourth damping member disposed on one end of the first coupler 520 and the support member 220, and the other end of the support member 220 and the circuit board ( 250) may further include a fifth damping member.

For example, a damping member (not shown) may be further disposed between the inner surface of the housing 140 and the outer circumferential surface of the bobbin 110 .

Next, the second coil 170 will be described.

The second coil 170 is disposed on the outer surface of the housing 140 .

For example, the second coil 170 may be disposed above the outer surfaces of the side parts 141 and 142 of the housing 140 .

The second coil 170 may have a ring shape wound to rotate clockwise or counterclockwise with respect to the optical axis. For example, the second coil 170 may have a ring shape surrounding outer surfaces of the first and second side parts 141 and 142 of the housing 140 in a clockwise or counterclockwise direction with respect to the optical axis.

The second coil 170 may be located below the upper elastic member 150 and above the magnet 130 .

At the initial position of the AF movable part (eg, bobbin 110), the second coil 170 may not overlap the magnet 130 in a direction perpendicular to the optical axis direction. This is to reduce mutual interference between the magnet 130 and the sensing coil 170 .

At the initial position of the AF movable part (eg, bobbin 110), the second coil 170 is spaced apart from the first coil 120 by a predetermined interval in the optical axis direction, and is positioned perpendicular to the optical axis direction. It may not overlap with (120). Maintaining a predetermined distance between the first coil 120 and the second coil 170 in the optical axis direction is to secure the linearity of the induced voltage induced in the second coil 170 by the current of the first coil 120. It is for

At the initial position of the AF movable unit, the second coil 170 may overlap the magnet 130 in the optical axis direction, but is not limited thereto, and in another embodiment, both may not overlap each other in the optical axis direction.

The second coil 170 may be disposed on an outer surface of the side parts 141 and 142 of the housing 140 such that at least a portion thereof is located outside the support member 220 . For example, the outer side of the support member 220 may be opposite to the center of the opening of the housing 140 based on the support member 220 .

The second coil 170 may be an induction coil for sensing the position or displacement of the AF movable part, for example, the bobbin 110 . For example, the second coil 170 may be implemented in the form of a wire, an FPCB, or a fine pattern (FP) coil.

For example, when the AF movable unit moves due to an interaction between the first coil 120 provided with a driving signal and the magnet 130, an induced voltage may be generated in the second coil 170. The magnitude of the induced voltage of the second coil 170 may vary according to the displacement of the AF movable unit. By detecting the magnitude of the induced voltage generated in the second coil 170, the displacement of the AF movable unit can be detected, and the AF feedback operation can be performed using the detected displacement of the AF movable unit, thereby performing an accurate AF operation. can be performed.

14 shows mutual inductance according to the separation distance between the first coil 120 and the second coil 170 . The X-axis represents the movement displacement of the AF movable part, and the y-axis represents the magnitude of mutual inductance.

Referring to FIG. 14, as the separation distance between the first coil 120 and the second coil 170 decreases due to the movement of the bobbin 110, the mutual inductance between the first coil 120 and the second coil 170 increases. and the induced voltage induced in the second coil 170 may increase as the mutual inductance increases.

On the other hand, as the separation distance between the first coil 120 and the second coil 170 increases, the mutual inductance between the first coil 120 and the second coil 170 decreases, and as the mutual inductance decreases, the second coil The induced voltage induced at 170 may decrease.

As such, based on the magnitude of the induced voltage generated in the second coil 170, the displacement of the AF movable unit may be sensed.

In general, AF (Auto Focus) feedback control requires a position sensor capable of detecting the displacement of an AF movable part, for example, a bobbin, and a separate power supply connection structure for driving the position sensor, which increases the price of the lens driving device. And difficulties in manufacturing operations may occur.

In addition, a linear section of the graph between the moving distance of the bobbin and magnetic flux of the magnet detected by the position sensor (hereinafter referred to as “first linear section”) may be constrained by the positional relationship between the magnet and the position sensor.

Since the embodiment does not require a separate position sensor for detecting the displacement of the bobbin 110, the cost of the lens driving device can be reduced and the ease of manufacturing work can be improved.

In addition, since the mutual induction between the first coil 120 and the second coil 170 is used, the linear interval of the graph between the moving distance of the bobbin 110 and the induced voltage of the second coil 170 is compared to the first linear interval. can increase As a result, the embodiment can secure a wide range of linearity, improve a process defect rate, and perform more accurate AF feedback control.

Next, the base 210, the support member 220, the third coil 230, the position sensor 240, and the circuit board 250 will be described.

The base 210 may be combined with the cover member 300 to form an accommodation space for the bobbin 110 and the housing 140 . The base 210 may have an opening corresponding to the above-described opening of the bobbin 110 and/or the opening of the housing 140, and may have a shape matching or corresponding to the cover member 300, for example, a rectangular shape. can

The base 210 is located below the bobbin 110 and the housing 140 and may have a support groove or a support portion on a surface facing a portion of the circuit board 250 where the terminal surface 253 is formed.

An edge or corner of the base 210 may have a groove 212 . When the edge or corner of the cover member 300 has a protruding shape, the protrusion of the cover member 300 may be engaged with the base 210 at the groove 212 .

The base 210 may be recessed from an upper surface and include position sensor mounting grooves 215-1 and 215-2 in which the position sensors 240a and 240b are disposed.

The position sensor 240 is an optical image stabilizer (OIS) position sensor for OIS feedback, and may include a first position sensor 240a and a second position sensor 240b.

The first and second position sensors 240a and 240b may be disposed in the position sensor seating grooves 215a and 215b of the base 210 located under the circuit board 250, and the circuit board 250 and can be electrically connected. For example, the first and second position sensors 240a and 240b may be mounted on the back of the circuit board.

For example, each of the first and second position sensors 215a and 215b may receive a driving signal from the circuit board 250, and an output of each of the first and second position sensors 215a and 215b is a circuit. It may be output to the substrate 250 .

The first and second position sensors 240a and 240b detect displacement of the housing 140 relative to the base 210 in a direction perpendicular to the optical axis (eg, the Z axis) (eg, the X axis or the Y axis). can For example, when the housing 140 moves in the second direction or/and the third direction, the first and second position sensors 240a and 240b detect a change in magnetic force emitted from the magnet 130 and the detected result. A signal can be output according to

For example, the first and second position sensors 240a and 240b may be implemented as a Hall sensor alone or in the form of a driver including a Hall sensor, but this is an example and detects a position other than a magnetic force. Any sensor that can do it is possible.

The third coil 230 may be disposed on the upper side of the circuit board 250, and the first and second position sensors 240a and 240b may be disposed on the lower side.

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

The circuit board 250 may include at least one terminal surface 253 bent from an upper surface and a plurality of terminals 251 provided on the terminal surface 253 . For example, the circuit board 250 may have a terminal surface provided on each of two sides of the upper surface facing each other, but is not limited thereto.

For example, the circuit board 250 includes first terminals electrically connected to support members 220-1 to 220-4 connected to the first coil 120 and the second coil 170, and the third coil. It may include second terminals electrically connected to (230-1 to 230-4).

The circuit board 250 may be a flexible printed circuit board (FPCB), but is not limited thereto. may be

The circuit board 250 may include holes 250a1 and 250a2 through which the support members 220-1 to 220-4 may pass. The support members 220-1 to 220-4 may be electrically connected to a circuit pattern disposed on the bottom surface of the circuit board 250 through holes 250a1 and 250a2 of the circuit board 250 and soldering.

Also, in another embodiment, the circuit board 250 may not have the holes 250a1 and 250a2, and the supporting members 220-1 to 220-4 may include a circuit pattern formed on the upper surface of the circuit board 250 or It may be electrically connected to the pad through soldering or the like.

The circuit board 250 may further include a hole coupled with a protrusion provided on the upper surface of the base 210 through a heat-sealed or adhesive member.

The third coil 230 is disposed on the upper surface of the circuit board 250 in correspondence with or aligned with the magnet 130 . The number of third coils 230 may be one or more, and may be the same as the number of magnets 130, but is not limited thereto.

For example, the third coil 230 may include a plurality of OIS coils 230-1 to 230-4 formed in a substrate 231 separate from the circuit board 250, but is not limited thereto. In another embodiment, the OIS coils 230-1 to 230-4 may be spaced apart from each other on the circuit board 250 without a separate board.

The substrate 231 on which the third coil 230 is formed may have an escape groove 23 at each corner through which the support members 220-1 to 220-4 can pass.

The OIS coils 230 - 1 to 230 - 4 may be electrically connected to the circuit board 250 . A driving signal, eg, a driving current, may be provided to each of the OIS coils 230-1 to 230-4.

The magnets 130-1 to 130-4 and the OIS coils 230-1 to 230-4 may face each other or be aligned in a direction parallel to the optical axis, and the magnet 130 and the driving signal may be applied. The housing 140 can be moved in the second and/or third directions by the electromagnetic force generated by the interaction between the OIS coils 230-1 to 230-4, and the movement of the housing 140 is controlled to compensate for hand shake. this can be done

Next, the support member 220 will be described.

One end of the support member 220 may be coupled to the upper elastic member 150 by soldering or a conductive adhesive member, and the other end of the support member 220 may be coupled to the circuit board 250, but is not limited thereto. In another embodiment, the other end of the support member 220 may be coupled to the circuit member 231 or/and the base 210.

There may be a plurality of support members 220 , and the plurality of support members 220 - 1 to 220 - 4 may be positioned to correspond to the second side parts 142 of the housing 140 .

Each of the plurality of support members 220-1 to 220-4 is coupled to the corresponding first coupling part 520 of any one of the upper springs 150-1 to 150-4 through solder 901. and may be electrically connected to the first coupling part 520 .

The plurality of support members 220-1 to 220-4 may support the bobbin 110 and the housing 140 so that the bobbin 110 and the housing 140 are movable in a direction perpendicular to the first direction. .

For example, each of the plurality of support members 220 - 1 to 220 - 4 may be disposed adjacent to a corresponding one of the four second side parts 142 . For example, the support members 220-1 to 220-4 may be positioned inside the ring-shaped second coil 170.

In FIG. 9 , one support member is disposed on each of the second side parts of the housing 140, but is not limited thereto.

In another embodiment, two or more support members may be disposed on each of the second side portions of the housing 140, and the upper elastic member 150 is separated from and spaced apart from each other on at least one of the second side portions of the housing 140. It may also include two or more upper elastic members that do. For example, two support members disposed on one of the second sides of the housing 140 may be connected to a corresponding one of two separated upper elastic members disposed on the one of the second sides.

Each of the plurality of support members 220-1 to 220-4 may be spaced apart from the housing 140, and are not fixed to the housing 140, but are attached to the upper springs 150-1 to 150-4. It may be directly connected to the first coupling part 520 of the first outer frame 152 .

In another embodiment, the support member 220 may be disposed on the side portion 141 of the housing 140 in the form of a leaf spring.

A driving signal may be transmitted from the circuit board 250 to the first coil 120 through the plurality of support members 220-1 to 220-4 and the upper springs 150-1 to 150-4, An induced voltage output from the second coil 170 may be transferred to the circuit board 250 .

For example, the induced voltage of the second coil 170 through the second and third upper springs 150-2 and 150-3 and the second and third support members 220-2 and 220-3 is may be transferred to the circuit board 250 . In addition, through the first and fourth upper springs 150-1 and 150-4 and the first and fourth support members 220-1 and 220-4, the driving signal signal from the circuit board 250 is transmitted to the first coil 120. ) can be transmitted.

The plurality of support members 220-1 to 220-4 may be formed as a separate member from the upper elastic member 1150, and may be elastically supported by a member such as a leaf spring or a coil. It may be implemented as a coil spring, suspension wire, and the like. Also, in another embodiment, the support members 220-1 to 220-4 may be integrally formed with the upper elastic member 150.

FIG. 11 shows a plan view of FIG. 3 , FIG. 12A shows a perspective view of the first dotted line portion 41 of FIG. 11 , and FIG. 12B shows a perspective view of the second dotted line portion 42 of FIG. 11 .

Referring to FIGS. 11, 12a, and 12b, a portion of the second coil 170 is wound around the first protrusion 31a of the housing 140 at least once, and the upper part is formed by the first solder part 71. It may be coupled to the second area S2 of the outer portion 510a of the spring (eg, 150-1) and electrically connected to the upper spring (eg, 150-1).

In addition, another part of the second coil 170 is wound around the second protrusion 31b of the housing 140 at least once, and the first part of the upper spring (eg, 150-2) is wound by the second solder part 72. It may be coupled to the second area S2 of the outer portion 510d of the outer frame 152 and electrically connected to an upper spring (eg, 150-2).

A part of the second coil 170 disposed on the housing 140 is wound around the first protrusion 31a of the housing 140 at least once, and is transferred to the first outer frame 152 of the upper spring 150-1. An extended first extension line 17f may be included, and a first solder part 71 may be disposed on the first extension line 17f and the first outer frame 152 of the first upper spring 150-1. The first extension line 17f and the first outer frame 152 of the upper spring (eg, 150-1) may be electrically connected to each other by the first solder part 71.

In addition, another part of the second coil 170 disposed on the housing 140 is wound around the second protrusion 31b of the housing 140 at least once, and the first outer frame 152 of the upper spring 150-2 ), and a second solder part 72 may be disposed on the second extension line 17g and the first outer frame 152 of the upper spring 150-2. The second extension line 17g and the first outer frame 152 of the upper spring 150-2 may be electrically connected to each other by the second solder part 72.

The reason why both ends of the second coil 170 are wound around the first and second protrusions 31a and 31b on the housing 140 is that one end of the second coil 170 and the first upper spring 150 This is to solder the first outer frame of -1) and solder the other end of the second coil 170 and the first outer frame of the second upper spring 150-2. In addition, by stably and firmly fixing both ends of the second coil 170 to the first and second protrusions 31a and 31b of the housing 140, it is possible to prevent disconnection of the second coil 170 due to impact. This is to improve solderability by preventing movement or shaking of the second coil 170 during soldering.

For example, the second coil 170 includes a first portion 17a disposed on an outer surface of the housing 140 (eg, a seating groove 148 for the second coil) and a first protrusion 31a of the housing 140. A second part 17b wound on the first part 17a, a third part 17c connecting one end of the first part 17a and the second part 17b, and a second part 17c wound around the second protrusion 31b of the housing 140. The fourth part 17d, and the fifth part 17e connecting the other end of the first part 17a and the fourth part 17d, and the sixth part 17f extending from one end of the second part 17b, and a seventh portion 17g extending from one end of the fourth portion 17d.

The third part 17c of the second coil 170 may be disposed in the groove 61 located on the first side of the housing 140, and the fifth part 17e of the second coil 170 may be disposed in the housing 140. It can be arranged in the groove 61 located on the third side of 140.

The first part 17a is a part where an induced voltage is generated by interaction with the first coil 120, and can be expressed as a “main body” of the second coil 170, and the second part ( 17b) may be expressed as a “first winding member”, the third part 17c may be expressed as a “first connection line”, and the fourth part 17d may be expressed as a “second connection line”. 2 winding part”, and the fifth part 17e can be expressed as a “second connection line”.

For example, the first solder part 71 may be spaced apart from the second part 17b of the second coil 170, and the second solder part 72 may be the fourth part 17d of the second coil 170. can be separated from As a result, the length of the second coil 170 may be further increased.

The second coil 170 may include a conductive wire and a coating (eg, an insulating part) surrounding the conductive wire, and the conductive wire of the first extension line 17f and the second extension line 17g of the second coil 170. It can be exposed from the silver coating. This is done through the connection between the exposed conductive wire portion of the first extension line 17f (or the second extension line 17g) and the first solder part 71 (or the second solder part 72), so that the second coil 170- 1) and the first and second lower springs 160-1 and 160-2.

Since the second coil 170 extends to the second region S2 of the second coupling part 510-1 of the first outer frame of the upper springs 150-2 and 150-3, the second coil ( 170) may be increased, and as the length of the second coil 170 increases, the resistance of the second coil 170 may also increase, thereby causing an induced voltage induced in the second coil 170. Since the size of can be increased, sensitivity for detecting the position of the bobbin 110 for AF feedback driving can be improved.

In another embodiment, the first and second extension lines 17f and 17g may be omitted, the second coil 170 may include the first to fifth portions 17a to 17e, and the first solder portion may include the second It may be disposed on the second outer frame of the second part 17b of the coil and the upper spring 150-2, and the second solder part may be disposed on the fourth part of the second coil and the second outer frame of the upper spring 150-3. It can be placed on an outer frame. At this time, the conductive wires of the second and fourth parts 17b and 17d of the second coil may be exposed from the sheath, and the second coil and the upper springs 150-2 and 150 are connected by the first and second solder parts. -3) can be electrically connected.

In another embodiment, the second coil 170 includes a first portion 17a disposed on an outer surface of the housing 140 (eg, a seating groove 148 for the second coil), a first protrusion of the housing 140 ( 31a), a third portion 17d wound around the second protrusion 31b of the housing 140, and one end of the first portion 17a connected to the second portion 17b. A first connection line (or a first connection part, 17c), a second connection line (or a second connection part, 17e) connecting the other end of the first part 17a and the third part 17d, and a second part 17b It may also include a first extension portion 17f extending from one end of and a second extension portion 17g extending from one end of the fourth portion 17d.

The embodiments shown in FIGS. 1 to 13 use an induced voltage due to mutual induction between the first coil 120 and the second coil 170 for the AF feedback operation. However, in other embodiments, the second coil 170 may be omitted in FIGS. 1 to 13 for AF feedback operation, and other embodiments may include an AF position sensor disposed on the housing 140 or the bobbin 110. can At this time, the housing 140 or the bobbin 110 may be provided with a seating groove in which the AF position sensor is seated. In addition, another embodiment may further include a circuit board disposed on the housing 140 or the bobbin 110 to mount the AF position sensor.

Also, in another embodiment, a magnet for sensing corresponding to the AF position sensor may be separately provided in a direction perpendicular to the optical axis. When the AF position sensor is disposed on the bobbin 110, the magnet for sensing may be disposed on the housing 140, and when the AF position sensor is disposed on the housing 140, the magnet for sensing may be disposed on the bobbin 110. there is.

The AF position sensor may be electrically connected to the circuit board 250 through a plurality of divided upper springs and/or at least one lower spring, and support members 220-1 to 220-4.

The AF position sensor may be implemented in the form of a driver including a Hall sensor or implemented solely as a position detection sensor such as a Hall sensor.

The AF position sensor has two input terminals to which driving signals are provided from the circuit board 250 and two input terminals for outputting signals according to the result of detecting the strength of the magnet or/and the sensing magnet according to the movement of the AF moving part. It may include output terminals.

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

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

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

Referring to FIG. 15 , the camera module 200 includes a lens or lens barrel 400, a lens driving device 100, an adhesive member 612, a filter 610, a first holder 600, and a second holder 800. ), an image sensor 810, a motion sensor 820, a controller 830, and a connector 840.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

The image sensor 810 includes a pixel array unit including a plurality of unit pixels, a sensing controller that provides control signals for controlling transistors included in the unit pixels, and output from unit pixels of the pixel array unit 905. It may include an analog-to-digital converter that converts an analog signal into a digital signal.

16 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 18 is a configuration diagram of the portable terminal 200A shown in FIG. 17 .

16 and 17, a portable terminal (200A, hereinafter referred to as a “terminal”) includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, an input/output unit, It may include an output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

The body 850 shown in FIG. 16 has a bar shape, but is not limited thereto, and is a slide type, folder type, or swing type in which two or more sub-bodies are coupled to be relatively movable. , and may have various structures such as a swivel type. The body 850 may include a case (casing, housing, cover, etc.) constituting an external appearance.

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

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

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

The sensing unit 740 detects the current state of the terminal 200A, such as the open/closed state of the terminal 200A, the location of the terminal 200A, whether or not there is a user contact, the direction of the terminal 200A, and the acceleration/deceleration of the terminal 200A. By sensing, a sensing signal for controlling the operation of the terminal 200A may be generated.

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

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

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

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

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

The memory unit 760 may store programs for processing and control of the control unit 780 . For example, the memory unit 760 may store an image captured by the camera 721, for example, a photo or video.

The interface unit 770 receives data from an external device or receives power and transmits it to each component inside the terminal 200A, or transmits data inside the terminal 200A to an external device.

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

The controller 780 may include a multimedia module 781 for playing multimedia, a camera controller 782 for controlling a camera, and a display controller 783 for controlling the input/output unit 750 .

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

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

Claims (20)

housing;
a bobbin disposed within the housing;
a magnet disposed in the housing;
a first coil disposed on the bobbin and facing the magnet;
an upper elastic member including an inner frame coupled to an upper portion of the bobbin, an outer frame coupled to an upper portion of the housing, and a frame connecting portion connecting the inner frame and the outer frame;
a circuit board disposed below the housing; and
A support member electrically connecting the upper elastic member and the circuit board,
The upper elastic member,
an outer portion coupled to the upper portion of the housing;
A first coupling part coupled to one end of the support member; and
And a first connection portion connecting the outer portion and the first coupling portion,
A lens driving device wherein a width of the first connecting portion is smaller than a width of the outer portion. According to claim 1,
The bobbin includes a first guide part for guiding the frame connecting part. According to claim 1,
The bobbin includes a projection coupled to the inner frame of the upper elastic member. According to claim 1,
The bobbin includes a groove for fixing a jig formed on an upper surface,
The lens driving device of claim 1 , wherein the groove for fixing the jig is formed on upper surfaces of side portions of the bobbin facing each other. According to claim 1,
And a lower elastic member coupled to the lower part of the bobbin and the lower part of the housing,
The lens driving device including a protrusion coupled to the lower elastic member and disposed at a corner of the housing. According to claim 1,
The housing includes a hole through which the support member passes,
wherein the hole is formed at a corner of the housing. According to claim 6,
The diameter of the hole of the housing gradually increases in a direction from the upper surface of the housing toward the lower surface of the housing,
A lens driving device comprising a damper disposed in the hole of the housing. According to claim 6,
A cover member accommodating the housing;
the housing,
a second guide part formed at the corner of the housing; and
And a stopper spaced apart from the second guide portion and formed at the corner of the housing,
When viewed from above, the hole of the housing is located between the second guide part and the stopper. According to claim 1,
The housing includes at least one protrusion coupled to the outer frame of the upper elastic member,
The outer frame of the upper elastic member includes at least one hole coupled with the at least one protrusion of the housing,
The at least one hole of the outer frame includes at least one cutout through which an adhesive member permeates. According to claim 5,
The first coil is electrically connected to at least one of the upper elastic member and the lower elastic member,
A lens driving device in which a driving signal is applied to the first coil. According to claim 1,
The housing includes a groove formed at a lower portion of a corner of the housing,
A lens driving device including a damping member disposed in the groove of the housing. According to claim 1,
The outer frame of the housing includes a first extension portion extending from the first coupling portion toward the outer portion,
A lens driving device including a damper disposed on the first extension part. According to claim 1,
The upper elastic member includes first to fourth upper springs,
Each of the first to fourth upper springs includes the outer frame,
The outer frame of at least one of the first to fourth upper springs is engaged with a side portion of the housing adjacent to a corner of the housing. According to claim 12,
The first coupling portion includes a coupling region to which the one end of the support member is coupled,
A first length of the first extension portion extending from the first coupling portion toward the outer portion is greater than a second length of the first coupling portion, and the second length is the coupling area and the extending direction of the first extension portion. The distance between the ends of the first coupling portion extending in the opposite direction of the lens driving device. According to claim 12,
the outer part,
a second coupling part disposed on a first side of the housing and coupled to the housing;
a third coupling part disposed on a second side of the housing and coupled to the housing;
A lens driving device comprising a second connection portion connecting the second coupling portion and the third coupling portion. According to claim 1,
The outer portion is left and right asymmetric with respect to the reference line,
The reference line is a straight line passing through the center of the housing and the corner of the lens driving device. According to claim 1,
a third coil disposed to face the magnet and moving the housing;
a base disposed below the circuit board; and
A sensor disposed on the base and electrically connected to the circuit board;
The circuit board includes first terminals electrically connected to the first coil and second terminals electrically connected to the third coil. housing;
a bobbin disposed within the housing;
a magnet disposed in the housing;
a first coil disposed on the bobbin and facing the magnet;
an upper elastic member including an outer portion coupled to an upper portion of the housing;
a circuit board disposed below the housing;
a support member electrically connecting the outer portion of the upper elastic member and the circuit board; and
And a damper disposed on the outer portion of the upper elastic member,
The upper elastic member includes a first coupling portion coupled to one end of the support member, a connection portion connecting the outer portion and the first coupling portion,
The outer portion of the upper elastic member includes a second coupling portion coupled to one portion of the housing and a third coupling portion coupled to another portion of the housing,
The connection part includes a first connection part connecting the first coupling part and the second coupling part and a second connection part connecting the first coupling part and the third coupling part,
The lens driving device of claim 1 , wherein a width of the first coupling portion is smaller than a width of the second coupling portion and a width of the third coupling portion. According to claim 18,
The lens driving device of claim 1 , wherein a width of the second connection portion is smaller than a width of the second coupling portion and a width of the third coupling portion. lens;
a lens driving device according to any one of claims 1 to 19; and
A camera module including an image sensor.

Images