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

Abstract

To provide a lens driving device capable of preventing disconnection or damage to a second coil caused by external impacts, preventing movement or vibration of the second coil, and improving solderability, and a camera module and optical apparatus including the lens driving device.SOLUTION: The lens driving device comprises: a housing; a bobbin disposed in the housing; a first coil disposed on the bobbin; a magnet disposed in the housing; an upper spring coupled to an upper portion of the bobbin and an upper portion of the housing; a circuit board disposed under the housing; a support member electrically connecting the upper spring and the circuit board; and a damper disposed on the upper spring. The upper spring includes: an outer side portion coupled to the housing; a first coupling portion coupled to the support member; and a first connecting portion connecting the outer side portion and the first coupling portion. The first coupling portion further includes a first extension portion extending from the first coupling portion toward the outer side portion. The first extension portion is spaced apart from the outer side portion. The damper connects the first extension portion and the outer side portion.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The embodiments relate to a lens driving device, and a camera module and an optical device including the lens driving device. [Background technology]

[0002] The ultra-compact and low-power camera module is a conventional camera module. The technology of the voice coil motor (VCM) used in Since the technique is difficult to apply, research into this topic has been actively pursued.

[0003] In the case of camera modules mounted on small electronic products such as smartphones, The camera module may be subject to frequent shocks, and the user's hands may shake while taking pictures. This can cause slight vibrations in the camera module. Recently, technology has been developed to further provide hand tremor prevention means to the camera module. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiment prevents the second coil from being broken or damaged due to external impact and does not require separate wiring. The second coil and the upper spring can be soldered without soldering the upper spring and the second coil. The lens drive prevents the second coil from moving or shaking during soldering, improving solderability. The present invention provides a moving device, a camera module including the moving device, and an optical instrument. [Means for solving the problem]

[0005] The lens driving device according to the embodiment includes a housing; a bobbin disposed in the housing; a first coil disposed on the bobbin; a magnet disposed on the housing; an upper spring coupled to the upper portion of the housing; a support portion electrically connecting the upper spring and the circuit board; and a damper disposed on the upper spring, the upper spring being an outer portion coupled to the housing; a first coupling portion coupled to the support member; and a first connecting portion connecting the first connecting portion and the first connecting portion; a first extension portion extending from the first portion toward the outer portion, , spaced apart from the outer portion, and the damper connects the first extension portion and the outer portion.

[0006] The outer portion may be coupled to the housing at a corner of the housing.

[0007] The outer portion is disposed on a first side of the housing and is coupled to the housing. 2. A coupling portion; the coupling portion is disposed on a second side adjacent to the first side of the housing, and is connected to the housing. a third coupling portion coupled to the second coupling portion; and a second coupling portion coupling the second coupling portion and the third coupling portion; and the first connecting portion may include a first connecting portion that connects the second connecting portion and the first connecting portion. a third connecting portion; and a fourth connecting portion connecting the third connecting portion and the first connecting portion. can.

[0008] The damper may be disposed between the first extension portion and the second connection portion. The first extension portion may be spaced apart from each of the third connecting portion and the fourth connecting portion.

[0009] the first extension portion is a second extension portion extending from the first coupling portion to the second coupling portion; a third extension portion extending from the first connection portion to the third connection portion; and and a fourth extension portion extending to the second connecting portion.

[0010] The first extension portion is wider as it extends from the first coupling portion toward the outer portion. The width of the first portion may be greater than or equal to 10 mm.

[0011] The portion of the first extension that corresponds to the outer portion includes a shape that corresponds to the shape of the outer portion. It is possible to do so.

[0012] The first coupling portion includes a coupling region that is coupled to the support member, and the first coupling portion The length is longer than a second length of the first coupling portion, and the first length is from the coupling region to the The second length is a distance from the first extension part to one end of the first connection part in the extension direction of the first extension part. The first connecting portion extends from the connecting region in a direction opposite to the extending direction of the first extending portion. The distance may be the distance to the other end of the

[0013] The lens driving device is disposed on an outer surface of a side portion of the housing, and the first coil and The housing may further include a second coil for generating an induced voltage by interaction of the first and second coils. The housing may include a first protrusion and a second protrusion disposed on an upper surface of the housing, The spring may include a first spring and a second spring, and one of the second coils may be The portion may be wound around the first protrusion at least once and may be connected to the first spring. Another part of the second coil is wound around the second protruding portion at least once. It can be connected to the second spring.

[0014] According to another embodiment, the lens driving device has a first protrusion and a second protrusion disposed on the upper surface. a housing including a first coil and a second coil disposed on the first coil; a magnet disposed on the housing; a second magnet disposed on the outer surface of the housing; 2 coil; and a first spring coupled to the top of the bobbin and the top of the housing. and a second spring; and a portion of the second coil is slightly in contact with the first protrusion. The second coil is wound at least once and is connected to the first spring. The second protrusion may be wound at least once and connected to the second spring.

[0015] The second coil has a first portion disposed on an outer surface of the housing; a rolled second portion; a third portion connecting one end of the first portion and one end of the second portion; a fourth portion wound around the second protruding portion; and a second end of the first portion and one end of the fourth portion connected to each other. a fifth portion connecting the first and second electrodes;

[0016] The lens driving device according to the other embodiment includes a second coil and a first switch. a first solder portion electrically connecting the fourth portion of the second coil to a front end of the second coil; The second solder portion may further include a second solder portion electrically connecting the second spring.

[0017] The second coil has a sixth portion extending from the other end of the second portion to the first spring. and a seventh portion extending from the other end of the fourth portion to the second spring. The lens driving device electrically connects the sixth portion and the first spring. a first solder portion electrically connecting the seventh portion and the second spring; It may further include a second solder part.

[0018] The housing has a first side, a second side, a third side, and a fourth side; a first corner portion located between the second side portion and the third side portion; a second corner portion located between the third side portion and the fourth side portion; a fourth corner portion located between the fourth side portion and the first side portion; a first protrusion disposed on an upper surface of the first side portion and coupled to the first spring; a second protrusion disposed on the upper surface of the second corner portion and coupled to the first spring; a third protrusion disposed on an upper surface of the third side portion and coupled with the second spring; a fourth protrusion coupled to the second spring; and the first side and the third side are The second side and the fourth side may face each other.

[0019] The first protrusion is provided on the first side portion located between the first protrusion and the second protrusion. the second protrusion is disposed on the third side portion located between the third protrusion and the fourth protrusion, It can be provided.

[0020] The housing has an outer surface including a first groove in which a first portion of the second coil is disposed; a second groove coupled to the first groove and in which a third portion of the second coil is disposed; and and a third groove in which the fifth portion of the second coil is disposed.

[0021] The first spring is disposed at the first corner portion and is coupled to the first protrusion. a first region extending from the first region to an upper surface of the first side portion and coupled to the second protrusion; a second region in which the second spring is disposed at the second corner portion; a third region coupled to the third protrusion; and extending from the third region to an upper surface of the third side portion, a fourth region coupled to the fourth protrusion.

[0022] The second groove is located on an outer surface of a first side of the housing, and the third groove is located on an outer surface of the first side of the housing. the second groove and the third groove are located above the first groove. It can be placed.

[0023] The second coil does not overlap with the first coil in a direction parallel to the optical axis. a first portion of the second coil may be arranged to extend in a direction perpendicular to the optical axis; It is not necessary for the rule to overlap with the rule. Effect of the Invention

[0024] The embodiment prevents the second coil from being broken or damaged due to external impact and does not require separate wiring. The second coil and the upper spring can be soldered without soldering the upper spring and the second coil. This prevents the second coil from moving or shaking when soldering the coil, improving solderability. Cut. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a perspective view of the lens driving device according to the embodiment. [Diagram 2] 2 is an exploded view of the lens driving device shown in FIG. [Diagram 3] 2 is a coupling diagram of the lens driving device of FIG. 1 excluding a cover member. [Figure 4a] FIG. 2 is a first perspective view of the bobbin and the first coil shown in FIG. [Figure 4b] 2 is a second perspective view of the bobbin and the first coil shown in FIG. 1. [Figure 5a] FIG. 2 is a first perspective view of the housing shown in FIG. 1. [Figure 5b] FIG. 2 is a second perspective view of the housing shown in FIG. 1. [Figure 6] 4 is a cross-sectional view of the lens driving device shown in FIG. 3 taken along the line AB. [Figure 7] 3 is a perspective view of the upper elastic member shown in FIG. 2. [Figure 8] 8 is an enlarged view of a first outer frame of the first upper spring shown in FIG. 7. FIG. [Figure 9] 3 is a perspective view of an upper elastic member, a lower elastic member, a third coil, a circuit board, and a base in FIG. 2; FIG. [Figure 10] FIG. 13 is an exploded perspective view of the third coil, the circuit board, the base, the first and second position sensors, and the amplifier. [Figure 11] FIG. 4 is a plan view of FIG. [Figure 12a] 12 is a perspective view of a first dotted line portion in FIG. 11. FIG. [Figure 12b] 12 is a perspective view of a second dotted line portion of FIG. 11. FIG. [Figure 13] 13A and 13B show an extension and damper according to another embodiment. [Figure 14] 11 is a diagram showing mutual inductance depending on the separation distance between a first coil and a second coil. FIG. [Figure 15] FIG. 2 is an exploded perspective view of a camera module according to an embodiment. [Figure 16] 1 is a perspective view of a portable terminal according to an embodiment; [Figure 17] FIG. 17 is a configuration diagram of the portable terminal shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, each embodiment will be clearly described through the accompanying drawings and description of the embodiments. In the description of the embodiments, each layer (film), region, pattern or structure is a substrate, each layer (film), region, It is noted that the area, pad, or pattern is formed "on" or "under" the area, pad, or pattern. When the word "on" and "under" are used, they are used interchangeably. " or "indirectly through other layers." The upper and lower parts of each layer will be described with reference to the drawings.

[0027] The dimensions in the drawings may be exaggerated, omitted, or approximated for the convenience and clarity of the description. The dimensions of each component are shown in schematic form and do not necessarily reflect the actual dimensions. Additionally, like reference numbers refer to like elements throughout the description of the figures.

[0028] For convenience of explanation, the lens driving device according to the embodiment uses a Cartesian coordinate system (x, y, z). However, other coordinate systems may be used for the explanation, and the embodiment is not limited thereto. The x-axis and y-axis in the plane refer to directions perpendicular to the z-axis, which is the optical axis direction. The z-axis direction, which is parallel to the optical axis, is called the "first direction," and the x-axis direction is called the "second direction." " and the y-axis direction can be referred to as the "third direction."

[0029] For small camera modules in mobile devices such as smartphones and tablet PCs The applicable "hand tremor correction device" is a device that corrects the tremor caused by the user's hand tremors when taking a still image. To prevent the outline of the captured image from being unclear due to vibrations " " may refer to an apparatus configured to:

[0030] In addition, an "autofocusing device" is a device that automatically adjusts the focus of the image of the subject. This type of hand tremor correction device and autofocusing The device can be constructed in various ways, but the lens driving device according to the embodiment has at least one lens. The assembled optical module can be moved in a first direction parallel to the optical axis or perpendicular to the first direction. and / or a hand tremor correction action, Autofocusing can be performed.

[0031] FIG. 1 is a perspective view of a lens driving device 100 according to an embodiment, and FIG. 2 is a perspective view of the lens shown in FIG. FIG. 3 is an exploded view of the lens driving device 100, except for the cover member 300. This is a combination diagram of 00.

[0032] 1 to 3, the lens driving device 100 includes a bobbin 110, a first coil 120, and a , a magnet 130, a housing 140, an upper elastic member 150, a lower elastic member 160, and and a second coil 170.

[0033] In addition, the lens driving device 100 may further include a circuit board 250 .

[0034] In addition, the lens driving device 100 may further include a support member 220 .

[0035] In addition, the lens driving device 100 further includes a third coil 230 and each position sensor 240. The lens driving device 100 may include a cover member 300 and a base 2. It may further include 10.

[0036] The cover member 300 will be described below.

[0037] The cover member 300 is configured to accommodate the other components 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 13 Accommodates 120, 130, 140, 150, 160, 170, 220, 230, 250 .

[0038] The cover member 300 may be in the form of a box having an open bottom and including a top plate and side plates. The lower portion of the cover member 300 may be coupled to the upper portion of the base 210 .

[0039] The cover member 300 exposes a lens (not shown) coupled to the bobbin 110 to external light. An opening may be provided in the top plate to allow the liquid to exit.

[0040] The material of the cover member 300 is SUS to prevent the magnet 130 from sticking to the cover member 300. However, the cover member 300 may be made of a magnetic material. Therefore, a yoke mechanism is provided to increase the electromagnetic force due to the interaction with the first coil 120. You can also perform Noh.

[0041] Next, the bobbin 110 will be described.

[0042] A lens or a lens barrel may be attached to the bobbin 110. The bobbin 110 may also be a housing. The sensor 100 is disposed inside the housing 140.

[0043] FIG. 4a is a first perspective view of the bobbin 110 and the first coil 120 shown in FIG. 1, and FIG. 2 is a second perspective view of the bobbin 110 and the first coil 120 shown in FIG. 1.

[0044] 4a and 4b, the bobbin 110 has a first protruding portion protruding in a first direction from an upper surface thereof. The protrusion 111 and the second protrusion protruding from the outer circumferential surface of the bobbin 110 in the second and / or third direction. The connector 110 may include an outlet 112 .

[0045] The first protrusion 111 of the bobbin 110 includes a first guide portion 111a and a first stopper 111. The first guide portion 111a of the bobbin 110 may include an upper elastic member 150. For example, the first guide portion of the bobbin 110 may function as a guide for the installation position of the bobbin 110. 111a can guide the first frame connecting portion 153 of the upper elastic member 150. .

[0046] The second protrusion 112 of the bobbin 110 is a second and / or a third protrusion 112 extending from the outer peripheral surface 110b of the bobbin 110. In order to avoid spatial interference with the first frame connecting portion 153, Therefore, the upper surface of the second protrusion 112 may be located below the upper surface of the bobbin 110. For example, the second protrusion 112 may be provided with an escape groove. It may be a groove-like recess from the surface.

[0047] The bobbin 110 may include a second stopper 116 protruding from the lower surface.

[0048] The bobbin 110 has a side 110b-1 that corresponds to or faces the magnet 130, and a Each side portion 110b-2 may be located between the portions 110b-1.

[0049] The bobbin 110 has at least one coil 120 disposed or installed on its outer circumferential surface 110b. A first coil groove (not shown) may be provided. The shape and number of the first coil groove may vary. The number of the first coils 120 arranged on the outer circumferential surface 110b of the bobbin 110 corresponds to the shape and the number of the first coils 120. In other embodiments, the bobbin 110 may not include a groove for the first coil. Alternatively, the first coil 120 may be wound directly on the outer circumferential surface 110b of the bobbin 110 and fixed thereto. stomach.

[0050] In addition, the upper surface of the bobbin 110 is provided with a hole for a first inner frame 151 of the upper elastic member 150. A protrusion 113 may be provided that mates with the ball 151a.

[0051] The protrusions 113 are first upper protrusions arranged on each side 110b-1 of the bobbin 110 and spaced apart from each other. It may include a side protrusion 113a and a second upper protrusion 113b.

[0052] The first upper protrusion 113a is fused and bonded to the first inner frame 151 of the upper elastic member 150. The second upper protrusion 113b is made of solder or a conductive adhesive material, etc. The upper elastic member 150 is electrically connected to the first inner frame 151 through the upper elastic member 150. For example, the diameter of the first upper protrusion 113a is larger than the diameter of the second upper protrusion 113b. obtain.

[0053] The bobbin 110 is a first lower part that is coupled and fixed to the hole 161a of the lower elastic member 160. The coupling groove 117 may be provided on the lower surface of the lower elastic member 160. A support protrusion may be provided on the bottom surface of the bobbin 110 to couple with the roll 161a.

[0054] The bobbin 110 has an inner peripheral surface 110a having a thread for coupling with a lens or a lens barrel. The bobbin 110 may be fixed by a jig or the like. The inner circumferential surface of the bobbin 110 can be threaded, and the upper surface of the bobbin 110 has a groove for fixing a jig. For example, the jig fixing grooves 15a and 15b may be provided for the bobbin 110. However, the present invention is not limited to this. Not at all.

[0055] Next, the first coil 120 will be described.

[0056] The first coil 120 is disposed on the outer peripheral surface 110b of the bobbin 110 and is attached to the housing 140. It may be a drive coil that electromagnetically interacts with the magnet 130 disposed thereon.

[0057] In order to generate an electromagnetic force by interaction with the magnet 130, the first coil 120 is A drive signal (eg, a drive current or voltage) can be applied to the electrodes.

[0058] The drive signal applied to the first coil 120 may be an alternating signal, for example an alternating current. For example, the drive signal provided to the first coil 120 may be a sinusoidal signal or a pulse signal (e.g., , PWM (Pulse Width Modulation) signal).

[0059] Alternatively, in another embodiment, the driving signal applied to the first coil 120 may be an AC signal or a DC signal. The number may be included.

[0060] AF is possible by the electromagnetic force caused by the interaction between the first coil 120 and the magnet 130. The moving part or mover can move in a first direction. The strength and / or polarity of the signal (e.g., the direction in which the current flows) is controlled to connect the first coil 120 and Adjusting the strength and / or direction of the electromagnetic force due to the interaction with the magnet 130 This allows you to control the movement of the AF movable part in the first direction, A focusing function can be performed.

[0061] The AF movable part or the movable element is elastically supported by the upper elastic member 150 and the lower elastic member 160. The bobbin 110 is supported by the For example, the AF movable part includes a bobbin 110, a first coil 120, and a lens (not shown) mounted on the bobbin 110.

[0062] The first coil 120 is wound around a bobbin 1 so as to rotate clockwise or counterclockwise around the optical axis. In another embodiment, the first coil 120 may be wound or disposed around the outer periphery of the rotor 10. A coil winding or arrangement in a clockwise or counterclockwise direction around an axis perpendicular to the optical axis. The number of coil rings may be the same as the number of magnets 130. It can be, but is not limited to this.

[0063] The first coil 120 is formed by 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 22 are electrically connected to each other. 0 may be electrically connected to the circuit board 250. For example, the first coil 120 may be and the fourth upper springs 150-3 and 150-4.

[0064] Next, the housing 140 will be described.

[0065] The housing 140 accommodates therein the bobbin 110 on which the first coil 120 is disposed.

[0066] 5a is a first perspective view of the housing 140 shown in FIG. 1, and FIG. 5b is a second perspective view of the housing 140 shown in FIG. FIG. 6 is a second perspective view of the housing 140, taken along the line AB of the lens driving device 110 shown in FIG. FIG.

[0067] 5a, 5b and 6, the housing 140 generally comprises a post having an opening. The shape may include multiple sides 141, 142 that form an opening.

[0068] For example, the housing 140 has spaced apart sides 141 and spaced apart sides 142 and 143 . Each side 141 of the housing 140 may include two adjacent The side portions 142 may be disposed or positioned between the side portions 142, and the side portions 142 may be connected to each other. and may include a plane of constant depth.

[0069] Each side 142 of the housing 140 corresponds to a corner region of the housing 140. In this respect, the side 142 of the housing 140 is a "corner member." r)".

[0070] For example, in FIG. 5a, the housing 140 has first through fourth sides and first through fourth corners. It may include parts 501a to 501d.

[0071] The first side and the third side can face each other in a second direction, and the second side and the fourth side can They can face each other in a third direction.

[0072] The first corner portion 501a is located between the first side portion and the second side portion of the housing 140. The second corner portion 501b is located between the second side portion and the third side portion of the housing 140. The third corner portion 501c can be positioned between the third side portion and the fourth side portion of the housing 140. and the fourth corner portion 501d can be located between the fourth side portion of the housing 140 and the fourth corner portion 501b. It can be located between one side.

[0073] Each side 141 of the housing 140 corresponds to or faces each side 110b-1 of the bobbin 110. The housing 140 has a pair of sides 142 that can fit over the bobbin 110. It may correspond to or face b-2, but is not limited to this.

[0074] The housing 140 has magnets 130 (130-1 to 130-4) on each side 141. Also, a support member 220 is disposed on each side 142 of the housing 140. It can be placed.

[0075] The housing 140 is provided to support or accommodate the magnets 130-1 to 130-4. A magnet mount 141a may be provided on the inner surface of each side 141.

[0076] The outer surface of the housing 140 is provided with a first groove 1 for winding or accommodating the second coil 170. 48 may be provided.

[0077] For example, the first groove 148 of the housing 140 is located on the outside of each side 141 of the housing 140. The outer surface of each side portion 142 is recessed from the outer surface of the side portion 142, and may be in the form of a ring. There is no limitation.

[0078] For example, the first groove 148 of the housing 140 is formed on the outer surface of each side 141 and on each side 142. The upper end of the outer surface of the

[0079] For example, the first groove 148 of the housing 140 is spaced from the top surface of the housing 140; The magnets 130-1 to 130-4 may be disposed on the housing 140.

[0080] At least one of the sides 141 of the housing 140 includes grooves 61a, 61b, 61c. may be provided.

[0081] For example, the second groove 61a may be provided on a first side of the housing 140. The third portion 17c of the second coil 170 may be disposed in the third groove 61a. The third groove 61b may be provided in a third side portion of the second coil 170. Minute 17e may be placed.

[0082] For example, the grooves 61 may be disposed on each of the first to fourth sides of the housing 140.

[0083] For example, the grooves 61a, 61b, 61 extend through the side 141 of the housing 140 and have an upper end It may be an open through slot.

[0084] In FIG. 5a, each housing 140 has two spaced apart grooves 6 on its side 141. 1a, 61b, and 61 are provided, but are not limited thereto.

[0085] Each of the grooves 61a, 61b, 61 is connected to the first groove 148, and the upper part of the first groove 148 It may be located at.

[0086] For example, the second groove 61a is formed by connecting the protrusion 143b disposed in the first corner portion 501a and the first A protrusion 31a disposed on a first side of the housing 140 adjacent to the corner portion 501a; It may be placed between.

[0087] For example, the third groove 61b is formed by a protrusion 143b1 disposed in the second corner portion 501b and a first The protrusion 31b disposed on the third side of the housing 140 adjacent to the second corner portion 501b It may be placed between.

[0088] The groove 61 is also formed between the protrusion 32b disposed on the third side of the housing 140 and the third corner. between the protrusion 143b disposed on the first side of the housing 140 and the protrusion 143b disposed on the first side of the housing 140 and the protrusion 143a disposed at the fourth corner portion 501d. do.

[0089] For example, the grooves 61a, 61b, and 61 are provided with the first portion 17a of the second coil 170. The lower portions of the grooves 61a, 61b, and 61c are located at the top of the first groove 148 for the An opening may be provided that interfaces with the groove 148 .

[0090] The first and second grooves 61a and 61b of the housing 140 accommodate a part of the second coil 170 and other components. The grooves 61a, 61b, 61 is an inlet for injecting adhesive for attaching the magnet 130 to the housing 140 It can play a role.

[0091] The housing 140 is provided with a guide for guiding the adhesive injected into the grooves 61a, 61b, and 61. A guide protrusion 65 may be provided on the inner surface. The guide protrusion 65 is configured to guide the adhesive to the housing 1. It can serve to prevent the water from flowing down to the inside of 40.

[0092] Each side 141 of the housing 140 is disposed parallel to the side plate of the cover member 300. Each side 142 of the housing 140 may include a hole 147 through which the support member 220 passes. The hole 147a is formed in a direction from the upper surface of the housing 140 to the lower surface of the housing 140. This allows the damper, which will be described later, to be easily inserted into the hole 147a. This is to allow them to be placed.

[0093] In order to prevent the cover member 300 from directly colliding with the inner surface of the housing 1, A second stopper 144 may be provided on the upper surface of the 40. For example, the second stopper 144 The first to fourth corner portions 501a to 501d of the housing 140 are The position of the slit 14 may be, but is not limited to, that of the slit 14.

[0094] In addition, when the upper elastic member 150 is disposed on the upper surface of the housing 140, the upper elastic member In order to guide the installation position of the first outer frame 152 of the member 150, the housing 140 is A second guide portion 146 may be provided on the upper surface.

[0095] The second guide portions 146 are spaced apart from the second stoppers 144 and are positioned at the corners of the housing 140. For example, the second guide portion 146 and the first guide portion 147 may be disposed in a diagonal direction. The two stoppers 144 can face each other. Here, the diagonal direction is the housing The second stopper 144 may extend in the direction from the center of the guide 140 toward the second stopper 144. 146 prevents the upper surface of the housing 140 from directly hitting the inner surface of the cover member 300. It can also function as a stopper to prevent this.

[0096] The housing 140 is fitted with a hole 152a of the first outer frame 152 of the upper elastic member 150. At least one second groove 152a2 is provided on the upper surface of each side 142 to couple with the first groove 152a2. 1 and 2. The recess 143 may have protrusions 143a, 143b, 143a1, and 143b1.

[0097] The first protrusions 143a, 143b, 143a1, and 143b1 are the first to The fourth corner portion 501a to 501d may be disposed on an upper surface of at least one of the fourth corner portions 501a to 501d.

[0098] For example, the housing 140 has a first protrusion 143 disposed on one side of the second guide portion 146. a, 143a1, and the first protrusions 143b, 143a2 disposed on the other side of the second guide portion 146. It may contain b1.

[0099] For example, the shapes of the first protrusions 143a and 143b may be the same as each other, but are not limited thereto. At least one of the first protrusions 143a1 and 143b1 is not connected to the first protrusion 143. a, 143b may have a different shape.

[0100] In addition, the housing 140 is secured to the first outer frame 152 of the upper elastic member 150 through the hole 2. At least one second protrusion 32a provided on the upper surface of each side portion 142 for coupling with the , 32b.

[0101] For example, the second protrusions 32a and 32b are arranged on the sides 141 of the housing 140 facing each other. They may be disposed on the upper surfaces of the two mating side portions 141, but are not limited thereto.

[0102] For example, the second protrusion 32a is located at one of the housings 140 adjacent to the first corner portion 501a. The second protrusion 32 may be located on one of the sides 141, for example, on the upper surface of the first side. b is any other side portion 1 of the housing 140 adjacent to the second corner portion 501b 41, for example, may be located on the top surface of the third side.

[0103] For example, the second protrusions 32a and 32b may be arranged on the housing 1 facing each other in the second direction or the third direction. 40 , may be located on two sides 141 .

[0104] The housing 140 also accommodates a part (for example, a starting wire) of the second coil 170 and another part For stable fixation of (for example, the end line), projections 31a and 31b can be provided on the upper surfaces of the respective side portions 141 of the housing 140. It can be provided with projections 31a and 31b.

[0105] For example, the projections 31a and 32b are arranged on the upper surfaces of two side portions facing each other among the respective side portions 141 of the housing 140, for example, on the upper surfaces of the first side portion and the third side portion of the housing 140. Also, the projections 31a and 32b can be arranged on the first and third side portions of the housing 140 where the second projections 32a and 32b are located. It can be arranged.

[0106] For example, the first projection 31a can be arranged between the first projection 143b arranged at the first corner portion 501a and the second projection 32a arranged on the upper surface of the first side portion of the housing 140 adjacent to the first corner portion 501a. It can be arranged between them.

[0107] Also, for example, the second projection 31b can be arranged between the first projection 143b1 arranged at the second corner portion 501b and the second projection 32b arranged on the upper surface of the third side portion of the housing 140 adjacent to the second corner portion 501b. It can be arranged between them.

[0108] For example, the first groove 61a can be located between the first projection 143b arranged at the first corner portion 501a and the first projection 31a arranged on the first side portion of the housing 140 in contact with the first corner portion 501a. The second groove 61b can be located between the second projection 143b1 arranged at the second corner portion 501b and the second projection 31b arranged on the third side portion of the housing 140 in contact with the second corner portion 501b. It can be located between them.

[0109] This is because the first and second grooves 61a and 61b are among the first and second projections 31a and 32b. By being located adjacent to one of the corresponding coils, a part of the second coil 170 and the other coils This is to allow a portion of the wire to be easily wound around the first and second protruding portions 31a, 32b.

[0110] In addition, the housing 140 is configured such that the hole 1 of the second outer frame 162 of the lower elastic member 160 is 62a are provided on the lower surface of each side 142 of the housing 140 for coupling and fastening thereto. For example, the protrusion 145 may be formed on the housing. At least one of the first to fourth corner portions 501a to 501d of the groove 140 may be disposed. However, it is not limited to this.

[0111] To secure a path for the support member 220 to pass through and also to act as a damper. The housing 140 has a side 1 For example, the housing 140 may have a recess 142a formed in the lower portion of the housing 140. The recessed groove 142a may be filled with damping silicone.

[0112] The housing 140 has a third protrusion protruding from the outer surface of each side portion 141 in the second direction or the third direction. A stopper 149 may be provided. For example, in FIG. 5a, the housing 140 may include Each side portion 141 has two stoppers 149a, 149b spaced apart from each other on its outer surface. However, it is not limited to this.

[0113] The third stopper 149 prevents the cover portion 140 from moving when the housing 140 moves in the second and third directions. This is to prevent collision with the inner surface of the side plate of the member 300.

[0114] The bottom surface of the housing 140 is provided with a base 210, a third coil 230, and / or a circuit, which will be described later. In order to prevent collision with the board 250, the housing 140 has a second protruding portion protruding from the bottom surface. A 4-stopper (not shown) may further be provided.

[0115] Next, the magnets 130 (130-1 to 130-4) will be described.

[0116] The magnets 130-1 to 130-4 are disposed on the inside of the respective side portions 141 of the housing 140. In another embodiment, each magnet 130- 1 to 130-4 may be disposed on the outside of each side 141 of the housing 140.

[0117] At the initial position of the bobbin 110, the magnet 130 is aligned in a direction perpendicular to the optical axis direction. 1 and 2. The first coil 120 is disposed on each side 141 of the housing 140 so as to correspond to or be aligned with the first coil 120. It can be done.

[0118] For example, the magnets 130-1 to 130-4 arranged in the housing 130 are bobbins. In the initial position of the coil 110, the coil 110 overlaps with the first coil 120 in the second direction or the third direction. It can be pushed.

[0119] Here, the initial position of the bobbin 110 is when no power is applied to the first coil 120. , the initial position of the AF movable part, the upper elastic member 150 and the lower elastic member 160 are in the AF This is the position where the AF moving part is placed by elastically deforming only by the weight of the moving part. It is possible.

[0120] At the same time, the initial position of the bobbin 110 is determined by the gravity in the direction from the bobbin 110 to the base 210. When gravity acts in the direction from the base 210 to the bobbin 110, or when gravity acts in the opposite direction, the The AF movable part may be located at a position where the AF movable part is placed when the AF movable part is used. Each component, for example, a first coil 120, may be mounted on the bobbin 110.

[0121] In another embodiment, each side 141 of the housing 140 includes a magnet mount 141a. Instead, magnets 130 are provided in the outer and inner casings of each side 141 of the housing 140. It may be located in any one of them.

[0122] The shape of the magnet 130 corresponds to each side 141 of the housing 140, e.g. , may have a rectangular parallelepiped shape, but is not limited to this.

[0123] The magnet 130 is arranged so that the surface facing the first coil 120 is the S pole and the outer surface is the N pole. The magnet may be a monopole magnet or a bipole magnet arranged as shown in FIG. This is not limiting and the opposite configuration is also possible.

[0124] In the embodiment, the number of magnets 130 is four, but is not limited thereto. In addition, the number of magnets 130 may be at least two. The mating surfaces of the magnets 130 may be formed as flat surfaces, but are not limited thereto. It may be formed into a curved surface.

[0125] Next, the upper elastic member 150 and the lower elastic member 160 will be described.

[0126] The upper elastic member 150 and the lower elastic member 160 are attached to the bobbin 110 and the housing 140. The upper elastic member 150 and / or the lower elastic member 150 are connected to each other to elastically support the bobbin 110. In 160, the term "elastic member" is expressed interchangeably with "elastic unit." Good too.

[0127] For example, the upper elastic member 150 may be disposed on the top, upper surface or upper end of the bobbin 110 and the housing. The lower elastic member 160 may be connected to the upper portion, upper surface or upper end of the bobbin 140. 10 and the lower part, lower surface or lower end of the housing 140. This can be done.

[0128] FIG. 7 is a perspective view of the upper elastic member 150 shown in FIG. 2, and FIG. 8 is a perspective view of the first upper elastic member 150 shown in FIG. FIG. 9 is an enlarged view of the first outer frame 152 of the spring 150-1, which is the upper elastic portion of FIG. The elastic member 150, the lower elastic member 160, the third coil 230, the circuit board 250 and the base 210 10 is a perspective view of the third coil 230, the circuit board 250, the base 210, the first and second coils 230, 25 ... 2 is an exploded perspective view of the second position sensors 240a, 240b and the amplifier 310. FIG.

[0129] 7 to 10, at least one of the upper elastic member 150 and the lower elastic member 160 Either one can be divided or separated into two or more pieces.

[0130] For example, the upper elastic member 150 includes first to fourth upper springs 150-1, which are spaced apart from each other. 150-4. Here, the "upper spring" is referred to as the "spring". It may be expressed.

[0131] The upper elastic member 150 and the lower elastic member 160 are leaf springs. g), but is not limited thereto, and may be embodied as a coil spring (coil spring The wire may be embodied as a spring, a suspension wire, etc.

[0132] Each of the first to fourth upper springs 150-1 to 150-4 is attached to the upper part of the bobbin 110. , a first inner frame 151 coupled to the upper surface or upper end of the housing 140; a first outer frame 152 coupled to the surface or top end of the first inner frame 151; It may include a first frame connecting portion 153 that connects to the side frame 152 .

[0133] For example, the first frame connection portion 153 is connected to the first outer frame 152, for example, the third connection portion 510-2 can be connected to the inner frame.

[0134] The first and second frame connecting portions 153, 163 of the upper and lower elastic members 150, 160 Each is folded or curved at least once, The first and second frame connecting portions 153 and 163 can form a pattern of a fixed shape. Through the position change and minute deformation, the bobbin 110 moves upward and / or downward in a first direction. The work can be elastically (or resiliently) supported.

[0135] The first outer frames 15 of the first to fourth upper springs 150-1 to 150-4 2 is an outer portion 510 that is coupled to the housing 140, and is connected to the support members 220-1 to 220-4. The first coupling portion 520 to be coupled, and the outer portions 510a to 510d and the first coupling portion 520 are connected to each other. The first connector 530 may be connected to the first connector 530.

[0136] The first coupling portion 520 is connected to the outer portions 510a to 510d. The first extension 540 may extend in this direction.

[0137] The outer portions 510a to 510d are formed by a corner portion and at least one housing adjacent thereto. The support 140 may be disposed on a side 141 of the support 140 .

[0138] For example, the outer portions 510a to 510d are corner portions of the housing 140. Any one side and corner of the adjacent housings 140 and the adjacent housing 140 may be coupled to at least one of the other sides of any one of the other sides of 140.

[0139] For example, the first outer portion 510a is disposed on a first side of the housing 140, and the housing a second coupling portion 510-1 coupled to the housing 140; a second coupling portion 510-2 adjacent to the first side of the housing 140; A third coupling portion 510-2 is disposed on the side and coupled to the housing 140, and a second coupling portion 510-1 and the third coupling portion 510-2. do.

[0140] At least one of the first outer flaps of the first to fourth upper springs 150-1 to 150-4 The frame is not disposed at the corners, but is disposed at the sides of the housing 140. The outer portion may include a first connecting portion and a connecting portion connecting the first connecting portion and the outer portion. The part is not connected to the housing at the corner part, but is connected to the housing adjacent to the corner part. The housing may be coupled to the side of the ring.

[0141] The first connecting portion 530 is a third connecting portion that connects the second connecting portion 510-1 and the first connecting portion 520. a fourth connecting portion 530a connecting the third connecting portion 510-2 and the first connecting portion 520; Can contain 0b.

[0142] The first extension portion 540 may be spaced apart from the outer portion 510a. 20 toward the outer portion 510a. For example, the first extension portion 540 can extend from the first coupling portion 520 to each of the upper springs 150-1. 150-4 may include a portion that becomes wider as it extends in the direction of the center point 101. do.

[0143] For example, the widened portion of the first extension 540 may be in the shape of a sector. The central angle θ (see FIG. 13) of the sector-shaped first extension portion 540 is 40° to 1 If the central angle θ (see FIG. 13) of the first extension portion 540 is smaller than 40°, While the effect of improving solderability may be negligible, the central angle of the first extension portion 540 is 160°. If it is larger, spatial interference with the first connecting portion 530 may occur.

[0144] The portion of the first extension 540 corresponding to the outer portion 510a has a shape corresponding to the shape of the outer portion 510a. The shape may include

[0145] For example, the first extension portion 540 is a third connection portion 530a and a fourth connection portion 530b. and can be isolated.

[0146] The first extension portion 540 is a second extension extending from the first connecting portion 520 to the second connecting portion 510-1. a third extension portion extending from the first connecting portion 520 to the third connecting portion 510-2; The second connecting portion 510-3 may include a fourth extension portion extending from the joint portion 520 to the second connecting portion 510-3.

[0147] The damping member 91 can connect the first extension portion 540 and the outer portion 510a. For example, the damping member 91 is disposed between the first extension portion 540 and the second connection portion 510-3. It can be placed.

[0148] For example, the second coupling portion 510-1 is coupled to the second protrusion 143b of the housing 140. The third coupling portion 510-2 may include a hole 152a2. It may include a hole 152a1 that is coupled to the protrusion 143a.

[0149] For example, the second coupling portion 510-1 may be located on one side of a reference line (e.g., 501). The third coupling portion 510-2 may be located on the other side of the reference line (e.g., 501). .

[0150] In the embodiment of FIG. 7 and FIG. 8, the second coupling portion 510-1 and the third coupling portion 510-2 are Each of them is embodied to include through holes 152a1, 152a2, 25, and 26. In other embodiments, the second and third coupling parts may be connected to the housing 1. 40, may be embodied in various shapes, such as a groove shape, sufficient to couple with the groove 40.

[0151] For example, each of the holes 152a1 and 152a2 is connected to each of the protrusions 143a and 143b. At least one cutout for the adhesive material to penetrate between the holes 152a1 and 152a2 is provided. It may have an opening 21a.

[0152] The second coupling portion 510-1 is adjacent to the first corner portion 501a. The holes 152a2, 26, and 152a2 located on the first side of the housing , 26. A groove 81 may be provided located between the first and second electrodes 26.

[0153] For example, the second coupling portion 510-1 is disposed at the first corner portion 501a and has a hole 152. a2 is arranged in a first region S1, and a first corner portion 501a A second region S2 is disposed on the upper surface of the first side of the housing 140 adjacent to the first side of the housing 140. It can include.

[0154] For example, the second coupling portion 510-1 is disposed at the first corner portion 501a and has a hole 152. a2 is arranged in a first region S1, and a first corner portion 501a A second region S2 is disposed on the upper surface of the first side of the housing 140 adjacent to the first side of the housing 140. It can include.

[0155] For example, in another embodiment, the second coupling portion includes a first corner portion and a second coupling portion disposed at the first corner portion. At least one of the sides of any one of the adjacent housings 140 is disposed The first corner portion and any one of the housings 140 adjacent to the first corner portion The support member may be coupled to at least one of the side portions.

[0156] The second region S2 may be provided with a groove 81 into which the protrusion 31a of the housing 140 is inserted. In addition, a hole to which the second protrusion 32a of the housing 140 is connected is provided at one end of the second region S2. A rule 26 may be provided.

[0157] For example, the first protrusion 143b of the first corner portion 501a of the housing 140 and the second coupling portion The second hole 152a2 of the housing 140 may be fused and connected to the hole 152a2 of the housing 140. The protrusion 32a and the hole 26 of the second coupling portion 510-1 may be fusion-coupled. , which may mean that the second protrusion 32a is bonded to the upper spring by heat.

[0158] The protrusions 143b and 32a located on both sides of the first protrusion 31a of the housing 140 are the first Since the outer portion of the upper spring 150-1 is fused and joined, the embodiment is the first upper spring. The first outer portion 510a of the ring 150-1 can be stably fixed to the housing 140. Then, one end of the second coil 170 is secured to the first outer portion 510a of the first upper spring 150-1. Therefore, the embodiment can be stably coupled to the second coil 1 by an external impact. 70 can be prevented from being broken or damaged.

[0159] The third coupling portion 510-2 is connected to the first corner portion 501a and the adjacent corner portion 501a. At least one of the other sides of the housing 140 is located At least one hole 152a1, 25 may be provided.

[0160] For example, the third coupling portion 510-2 is disposed at the first corner portion 501a and has a hole 152. a1 is disposed in a third region S3, and a first corner portion 501a The housing 140 has a side wall 144 extending from the upper surface of the other side wall 144 adjacent to the housing 140. It may include a fourth region S4.

[0161] At one end of the fourth region S4, a hole is provided for coupling to the housing 140 via an adhesive member. In FIG. 8, the shape of the hole 25 is a cross. For example, but not limited to, the shape may be circular, elliptical, or polygonal.

[0162] For example, in another embodiment, the third coupling portion is a first corner portion and a second corner portion. At least one of the other side portions of the adjacent housings 140 is provided. The first corner portion and any other portion of the housing 140 adjacent to the first corner portion are disposed The second side portion may be coupled to at least one of the first and second sides.

[0163] The second connecting portion 510-3 connects the second connecting portion 510-1 and the third connecting portion 510-2. It is possible.

[0164] For example, the second connecting portion 510-3 is a first region S1 of the second connecting portion 510-1 and a third connecting portion 510-2 and the third region S3 of the second guide portion 1 of the housing 140. The installation position can be guided by 46.

[0165] For example, the second connecting portion 510-3 is a first corner of the housing 140 from the center point 101. The housing 140 may be convex toward the portion 501a, but is not limited thereto. The shape may be convex in a direction from the corner portion 501b toward the center of the housing 140.

[0166] The first coupling portion 520 may have a hole 52 through which the support member 220 passes. One end of the support member 220 that has passed through the hole 52 is attached by a conductive adhesive or solder 910. The first coupling portion 520 and the support member 220 may be electrically connected to each other. The two can be effectively linked together.

[0167] The first coupling portion 520 is a coupling region 5 that is coupled to the support member 220 by the solder 901. 20a, and the bonding area 520a includes the hole 52 and the solder 901 disposed therein. The area may include an area around the hole 520 .

[0168] The first connecting part 530 can connect at least one of the second coupling part 510-1 and the third coupling part 510-2 and the first coupling part 520.

[0169] For example, the first connecting part 530 may include a third connecting part 530a that connects between the first region S1 of the second coupling part 510-1 and the first coupling part 520, and a fourth connecting part 530b that connects between the third region S3 of the third coupling part 510-2 and the first coupling part 520.

[0170] Each of the third connecting part 530a and the fourth connecting part 530b may include a bent part that can be bent at least once or a curved part that can be bent at least once, but is not limited thereto, and may be linear in other embodiments.

[0171] The width W31 of the first connecting part 530 may be narrower than the first widths W11, W12 of the second coupling part 510-1, the second widths W21, W22 of the third coupling part 510-2, and the third width W3 of the second connecting part 510-3.

[0172] For example, the first widths W11, W12 are the minimum widths among the widths of the entire region of the second coupling part 510-1, the second widths W21, W22 are the minimum widths among the widths of the entire region of the third coupling part 510-2, and the third width W3 may be the minimum width among the widths of the entire region of the second connecting part 510-3.

[0173] Since W31 < W12, W31 < W22, and W31 < W3, the first connecting part 530 can easily move in the first direction, thereby dispersing the stress applied to the upper elastic member 150 and the stress applied to the support member 220.

[0174] ​​​​​​​​​​​The first extension portion 540 extends from the coupling region 520a of the first coupling portion 520 toward the outer portion 510a. The extension direction of the wire 20 can be extended by a preset length L1.

[0175] For example, the preset length L1 may be 0.1 mm to 2 mm. If it is less than 100 mm, the area of ​​the first extension 540 is small, and the heat dissipation effect is insignificant. On the other hand, when L1 exceeds 2 mm, the first connecting portion 530 and spatial interference with the outer part may occur.

[0176] For example, it is possible to improve solderability and at the same time eliminate interference between the first connecting portion 530 and the outer portion. In order to ensure sufficient distance, L1 may be 0.2 mm to 1.2 mm.

[0177] For example, the extension direction is from the coupling region 520a of the first coupling portion 520 to the second coupling region 520b of the outer portion 510a. At least one of the coupling portion 510-1, the third coupling portion 510-2, and the second connecting portion 510-3 It can be a direction towards one.

[0178] 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 is the length of the first extension portion 540 extending from the coupling region 520a in the extension direction of the first extension portion 540. The second length L2 may be the distance from the coupling region 520a to one end of the first coupling portion 520. The distance to the other end of the first connecting part 520 extended in the opposite direction to the extension direction of the first extension part 540 could be.

[0179] The length L1 of the first extension portion 540 is the length from the coupling region 520a of the first coupling portion 520 in the extension direction. It may be longer than the distance L2 to the end of the first coupling portion 520 located in the opposite direction (L1>L 2).

[0180] In addition, for example, the area of ​​the upper surface of the first extension portion 540 is larger than the area of ​​the upper surface of the first coupling portion 520. It can be wide.

[0181] The first extension portion 540 is a solder joint for connecting the first coupling portion 520 and the support member 220. At the same time, the area for transferring heat to the first coupling portion 520 is increased, thereby improving the solderability. It is possible.

[0182] The first extension portion 540 may be spaced apart from the outer portion 510 a and the first connecting portion 530 .

[0183] For example, the first extension portion 540 includes a first region S1 of the second coupling portion 510-1 and a third coupling portion 51 0-2, the third region S3, the second connecting portion 510-3, the third connecting portion 530a, and the fourth connecting portion 5 30b.

[0184] The distance between the first extension portion 540 and the second connection portion 510-3 is The distance between the first region S1 of the second connecting portion 510-1 and the first extension portion 540 and the third connecting portion The distance between the third region S3 of 510-2 may be shorter than the distance between the third region S3 of 510-2, but is not limited thereto. There is none.

[0185] For example, the distance between the first extension portion 540 and the second connection portion 510-3 is 0.03 mm to The distance between the first extension portion 540 and the second connection portion 510-3 may be 0.2 mm. If the distance is less than 0.03 mm, the spatial relationship between the first extension portion 540 and the second connection portion 510-3 is not large. While interference may occur, the distance between the first extension portion 540 and the second connection portion 510-3 is 0. If it exceeds 0.2 mm, the distance between the first extension portion 540 and the second connection portion 510 will be wide. It is difficult to form a damper between -3.

[0186] In order to eliminate such spatial interference and ensure ease of damper formation, e.g. For example, the distance between the first extension portion 540 and the second connection portion 510-3 is 0.06 mm to 0. It can be 15mm.

[0187] The first extension 540 has a shape in which the width increases in the extension direction in order to increase the heat transfer area. However, the present invention is not limited thereto and may be embodied in various shapes.

[0188] For example, the first extension portion 540 is at least one extending portion located on the left side of the reference line 501. The first vertex M1 and at least one second vertex M2 located on the right side of the reference line 501 It may have a shape including vertex M2, but is not limited to this.

[0189] In order to support the housing 140 in a balanced manner without leaning to one side, The portion 510 may be symmetrical with respect to a reference line, but is not limited thereto. The embodiment does not have to be symmetrical.

[0190] For example, the second to third joining portions and the second connecting portions 510-1 to 510-3 are aligned along a reference line (e.g. , 501), but is not limited thereto.

[0191] In order to support the housing 140 in a balanced manner without leaning to one side, The first coupling portion 520 may be symmetrical with respect to the reference line, but is not limited thereto. and in other embodiments may not be symmetrical.

[0192] In order to support the housing 140 in a balanced manner without leaning to one side, The first connecting portion 530 may be symmetrical with respect to the reference line, but is not limited thereto. and in other embodiments may not be symmetrical.

[0193] In order to support the housing 140 in a balanced manner without leaning to one side, The first extension portion 540 may be symmetrical with respect to the reference line, but is not limited thereto. and in other embodiments may not be symmetrical.

[0194] The reference lines 501 to 504 are the center point 101 (see FIG. 7) and the corners of the housing 140. A straight line passing through any one of the corners of the portions 501a to 501d. It may be a line.

[0195] Here, the center point 101 is the center of the housing 140 or each of the upper springs 150-1 to It may be the center of each of the positions 150-4.

[0196] In addition, for example, the first frame connection of the first to fourth upper springs 150-1 to 150-4 The portion 153 is rotationally symmetrical (for example, 90°) about the center point 101 (see FIG. 7). could be.

[0197] For example, each of the second to fourth upper springs 150-2 to 150-3 is a first upper spring. The second to fourth upper springs 15 may have a similar or identical shape to the second to fourth upper springs 15. For each of 0-2 to 150-3, the first upper spring 150-1 in FIG. The following explanation may apply.

[0198] The second to fourth outer portions 510b to 51 Each of the first and second connecting portions may include a first connecting portion, a second connecting portion, a third connecting portion, and a second connecting portion. can.

[0199] The shape of the first connecting portion of the second to fourth outer parts 510b to 510d is the same as that of the first upper spring 15. The shape of the first coupling portion 520 is the same as that of the first coupling portion 520 of 0-1, and the description therefor may be applied. That is, the description of the first coupling portion 520 of the first outer portion 510a will be the same as that of the second to fourth outer portions 510. b to 510d.

[0200] The shape or the number of the second coupling portions of at least one of the second to fourth outer portions 510b to 510d is The shape of the third bond may be different from the shape of the second bond or the shape of the third bond of the first outer portion.

[0201] For example, the second coupling portion of the second outer portion 510b is disposed in one region of the second corner portion 501b. A hole 152a2 is provided to be coupled with the first protrusion 143a1 of the second corner portion 501b. The second outer portion 510b may include a first region that is formed by bonding the first outer portion 510b to the second coupling portion. The second region S2 of the second coupling portion 510-1 of the first coupling portion 510a may not be provided. Alternatively, the second connecting portion of the second outer portion 510b may be connected to the second connecting portion 51 of the first outer portion 510a. A region corresponding to the second region of 0-1 may be provided, but its length may be shorter.

[0202] The third connecting portion of the second outer portion 510b is disposed in another region of the second corner portion 501b. A hole 152a1 is provided to be coupled with the first protrusion 143b1 of the second corner portion 501b. a housing portion adjacent to the second corner portion 501b and connected to the third region; The fourth region may be disposed extending from the upper surface of the third side of the first insulating layer 140 .

[0203] The fourth region of the second outer portion 510b is provided with a groove into which the protrusion 31b of the housing 140 is inserted. 81 may be provided. Also, at one end of the fourth region, the second protrusion 32b of the housing 140 may be provided. Interlocking holes 26 may be provided.

[0204] For example, the first protrusion 143b of the second corner portion 501b of the housing 140 and the second outer portion The hole 152a1 of the second coupling portion of the housing 1510b may be fusion-coupled. The second protrusion 32b of 40 and the hole 26 of the second connecting portion of the second outer portion 510b are fused and connected. It is possible.

[0205] The protrusions 143b1 and 32b located on both sides of the second protrusion 31b of the housing 140 are 2 is fused and joined to the second outer portion 510b of the upper spring 150-2, so that in this embodiment, The second outer portion 510b of the second upper spring 150-2 is stably fixed to the housing 140. The other end of the second coil 170 can be connected to the second outer side of the second upper spring 150-2. Therefore, the embodiment can be stably coupled to the portion 510b. This can prevent breakage or damage to the second coil 170.

[0206] For example, the second coupling portion of the third outer portion 510c is disposed in one region of the third corner portion 501c. and a first region in which a hole is provided to be coupled with a first protrusion of the third corner portion 501c. The second coupling portion of the third outer portion 510c may include a second coupling portion of the first outer portion 510a. The area corresponding to the second area S2 of the portion 510-1 may not be provided. The second joint portion 510c has a second region S2 of the second joint portion 510-1 of the first outer portion 510a. may be provided, but its length may be shorter.

[0207] The third connecting portion of the third outer portion 510c is the same as the third connecting portion 510-2 of the first outer portion 510a. The description of the third coupling portion 510-2 of the first outer portion 510a will be the same as that of the third outer portion 510. It may be applied to the third bond of c.

[0208] The second connecting portion of the fourth outer portion 510d is disposed in one region of the fourth corner portion 501d, and The fourth corner portion 501d has a hole 152a2 that is coupled to the first protrusion 143b. The housing 140 is connected to the first region and adjacent to the fourth corner portion 501d. The second region may be disposed extending from an upper surface of the fourth side.

[0209] The third connecting portion of the fourth outer portion 510d is disposed in another region of the fourth corner portion 510d. A hole 152a1 is provided to be coupled with the first protrusion 143a of the fourth corner portion 501d. The third joint portion of the fourth outer portion 510d may include a third region. Alternatively, the fourth outer portion 510d may not have a fourth area corresponding to the fourth area of ​​the fourth outer portion 510a. The third coupling portion has a region corresponding to the fourth region of the third coupling portion 510-2 of the first outer portion 510a. However, its length may be shorter.

[0210] The second connecting portion of the first outer portion 501a will be described with reference to the second to fourth outer portions 501b to 510. d may be applied to each second connection.

[0211] In FIG. 7, the shape of the first outer portion 510a is the same as the shapes of the second to fourth outer portions 510b to 510d. Although some parts are different, the present invention is not limited to this. For example, in other embodiments, the first to fourth The shape of each of the sides may be embodied to be the same as the shape of the first outer portion 510a in FIG.

[0212] In another embodiment, at least one of the first to fourth outer parts of the upper elastic member 150 The shape of the second outer portion 510b to the fourth outer portion 510d is the same as the shape of any one of the second outer portion 510b to the fourth outer portion 510d. or a combination of the second to fourth outer portions 510b to 510d. obtain.

[0213] The lower elastic member 160 is a second inner flaps that is coupled to the lower portion, the lower surface or the lower end of the bobbin 110. The frame 161 is a second outer frame that is coupled to the lower portion, lower surface or lower end of the housing 140. 162, and a second frame that connects the second inner frame 161 and the second outer frame 162. The connector 163 may include a hub connector 163.

[0214] The lower elastic member 160 is disposed on the second inner frame 161 and is soldered or electrically conductive. a hole 161a which is coupled to the first lower coupling groove 117 of the bobbin 110 by a viscous adhesive; and a second outer frame 162, which is coupled to the second protrusion 147 of the housing 140. The controller 162 may include a controller 162a.

[0215] The first and second frame connecting portions 153, 163 of the upper and lower elastic members 150, 160 Each is folded or curved at least once. The first and second frame connecting parts 153, 1 can form a pattern of a certain shape. Through the position change and micro-deformation of 63, the bobbin 110 moves up and / or down in a first direction. The lowering motion may be resiliently (or elastically) supported.

[0216] The lens driving device 100 includes the second connecting portions 51 of the upper springs 150-1 to 150-4. A damping member or damper 91 (FIG. 12) is disposed between the first extension portion 540 and the first extension portion 540. The damper 91 may further include a damper for absorbing or reducing vibrations of the support member 220. may act to dampen or cushion the movement of the support member 220.

[0217] For example, the damper 91 contacts the second connecting portion 510-3 and the first extending portion 540, and The coupling portion 510-1 and the third coupling portion 510-2 may be spaced apart from each other, but are not limited thereto. stomach.

[0218] For example, the damper 91 is provided between the side surfaces of the second connecting portion 510-3 and the first extending portion 510-4 facing each other. 540. For example, the damper 91 may be disposed between the second connecting portion 510 and the side surface of the second connecting portion 540. -3, and the upper and / or lower surfaces of the first extension portion 540 may be placed in

[0219] In addition, the damper 91 can be separated from the corner portions 501a to 501d of the housing 140. In another embodiment, the damper 91 may be disposed within the housing 140, but is not limited to this embodiment. The contact may come into contact with the corner portions 501a to 501d.

[0220] FIG. 13 shows a first extension portion 540a and a damper 92 according to another embodiment.

[0221] Referring to FIG. 13, the first extension portion 540 shown in FIG. 8 is a second connection portion extending from the first connection portion 520. 13 is extended to the first connecting portion 52. 0 to the second connecting portion 510-1; a third extension portion 540-2 extending to the third connecting portion 510-2 and a third extension portion 540-3 extending from the first connecting portion 520 to the third connecting portion 530; 2 is extended to the connecting portion 510-3, and the second extension portion 540-1 and the third extension portion 540-2 are connected to each other. The fourth extension 540-3 may be connected to the

[0222] The first extension portion 540a in FIG. 13 is for connecting the first connecting portion 520 and the support member 220. When soldering, the area for transferring heat to the first coupling portion 520 can be further increased. The adhesion can be further improved.

[0223] In FIG. 8, the first separation distance between the second connecting portion 510-3 and the first extending portion 540 is A second separation distance between the joint portion 510-1 and the first extension portion 540, and a third separation distance between the joint portion 510-2 and the The distance is shorter than the third separation distance between the first extension portion 540 .

[0224] On the other hand, in the embodiment of FIG. 13, between the second connecting portion 510-3 and the first extending portion 540a The first separation distance D1 is a second separation distance between the second coupling portion 510-1 and the first extension portion 540a. The third separation distance D2 between the third coupling portion 510-2 and the first extension portion 540a is the same as the third separation distance D3 between the third coupling portion 510-2 and the first extension portion 540a. (D1=D2=D3). In this embodiment, the thermal The transfer area, for example, the area of ​​the upper and lower surfaces of the first extension portion 540a can be increased. This can improve the solderability.

[0225] For example, D1, D2 and D3 can be between 0.03 mm and 0.2 mm.

[0226] In addition, the first extension 540a can be easily formed without spatial interference between the first extension 540a and each coupling portion. For ease, for example, D1, D2 and D3 may be 0.06 mm to 0.15 mm.

[0227] In addition, the lens driving device 100 has a second coupling portion 510-1 and a second extension portion 540-1. , between the third coupling portion 510-2 and the third extension portion 540-2, and between the second coupling portion 510-3 and the A damping member or damper disposed at least between the extension portion 540-3 and the extension portion 540-4. The damping member or damper 92 may further include a support member 220. or serve to absorb or dampen the vibrations of the support member 220 or dampen the movement of the support member 220. can be done.

[0228] For example, the damping member or damper 92 is provided with second and third coupling portions 510-1, 510- between the side surface of the second connecting portion 510-2 and the side surface of the first extension portion 540a, and between the side surface of the second connecting portion 510-3 and the first extension portion 540b. The side surfaces of the second and third coupling parts 510-1 and 510-3 are disposed between the side surfaces of the long part 540a. , it may come into contact with a side surface of the second connecting portion 510-3 and a side surface of the first extension portion 540a.

[0229] In addition, for example, the damping member or damper 92 is connected to the second and third connecting portions 510-1, 5 10-2, and the upper surface and / or the lower surface of at least one of the second connecting portion 510-3. The first extension portion 540a may be provided on an upper surface and / or a lower surface of the first extension portion 540a.

[0230] For example, in another embodiment, the damping member may include the second connecting portion 510-3 and the first extending portion 54. 0a. In this case, D1 can be smaller than D2 and D3, but Without being limited thereto, D1 may be greater than D2 and D3.

[0231] The damping member or damper 92 is disposed at the corner portions 501a to 501c of the housing 140. 501d, but is not limited thereto. The member or damper 92 may come into contact with the corners 501a to 501d of the housing 140. stomach.

[0232] In order to absorb and dampen the vibrations of the bobbin 110, the lens driving device 100 has A first pair of springs 150-1 to 150-4 is disposed between the housing 140 and each of the springs 150-1 to 150-4. A damping member (not shown) may further be provided.

[0233] For example, the first frame connecting portion 1 of each of the upper springs 150-1 to 150-4 A first damping member (not shown) may be disposed in the space between 53 and the housing 140. .

[0234] In addition, for example, the lens driving device 100 has a second frame connecting portion 1 of the lower elastic member 160. 63 and the housing 140. It may be possible.

[0235] In addition, for example, the lens driving device 100 has a hole between the support member 220 and the housing 140. 147a and 147b may further include a third damping member disposed between the first damping member 147a and the second damping member 147b.

[0236] In addition, for example, the lens driving device 100 includes a first coupling portion 520 and one end of the support member 220. The other end and the circumferential direction of the support member 220 may include a fourth damping member. The semiconductor device may further include a fifth damping member disposed on the substrate 250.

[0237] For example, a damping member is provided between the inner surface of the housing 140 and the outer circumferential surface of the bobbin 110. (not shown) may also be provided.

[0238] Next, the second coil 170 will be described.

[0239] The second coil 170 is disposed on the outer surface of the housing 140 .

[0240] For example, the second coil 170 is disposed on the outer surface of each side 141, 142 of the housing 140. It may be placed to the side.

[0241] The second coil 170 is wound so as to rotate clockwise or counterclockwise with respect to the optical axis. For example, the second coil 170 may be oriented clockwise or counterclockwise with respect to the optical axis. A ring that covers the outer surfaces of the first and second sides 141, 142 of the housing 140 in a counterclockwise direction. It may be in the form.

[0242] The second coil 170 is located below the upper elastic member 150 and above the magnet 130. It can be located.

[0243] In the initial position of the AF movable part (for example, the bobbin 110), the second coil 170 is aligned with the optical axis It is not necessary for the magnet 130 to overlap in the direction perpendicular to the direction. , in order to reduce interference between the magnet 130 and the sensing coil 170.

[0244] In the initial position of the AF movable part (for example, the bobbin 110), the second coil 170 is aligned with the optical axis The first coil 120 is positioned at a predetermined distance from the first coil 120 in the direction perpendicular to the optical axis. The first coil 120 does not have to overlap with the first coil 120 in the perpendicular direction. Maintaining the already set distance between the first coil 120 and the second coil 170 This is to ensure the linearity of the induced voltage induced in the second coil 170 by the current of 20. do.

[0245] In the initial position of the AF movable part, the second coil 170 is aligned with the magnet 130 in the optical axis direction. In other embodiments, the optical axis of the two may be overlapped, but is not limited to this. They do not have to overlap each other in any direction.

[0246] The second coil 170 is housed in a housing 210 such that at least a portion of the second coil 170 is located outside the support member 220. For example, the support member 220 may be disposed on the outer surface of each side 141, 142 of the housing 140. The outside of the housing 140 may be opposite the center of the opening of the housing 140 relative to the support member 220. do.

[0247] The second coil 170 is used to sense the position or displacement of the AF movable part, for example, the bobbin 110. For example, the second coil 170 may be in the form of a wire, an FPCB, or can be embodied in a fine pattern (FP) coil shape.

[0248] For example, the interaction between the first coil 120 and the magnet 130 to which a drive signal is applied When the AF movable part is moved by the second coil 170, an induced voltage may be generated in the second coil 170. The magnitude of the induced voltage in the coil 170 may vary depending on the displacement of the AF movable part. It can detect the magnitude of the induced voltage generated in the AF movable part and detect the displacement of the AF movable part. The displacement of the AF movable part is used to perform AF feedback operation. This allows for accurate AF operation.

[0249] FIG. 14 shows the mutual inductance caused by the distance between the first coil 120 and the second coil 170. The x-axis shows the displacement of the AF moving part, and the y-axis shows the magnitude of the mutual inductance. Indicates size.

[0250] Referring to FIG. 14, the first coil 120 and the second coil 17 are connected by the movement of the bobbin 110. 0, the smaller the distance between the first coil 120 and the second coil 170, the Inductance can increase. Also, the increase in mutual inductance The induced voltage induced in the coil 170 may increase.

[0251] On the other hand, as the 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 is reduced. By reducing the capacitance, the induced voltage induced in the second coil 170 can be reduced.

[0252] In this way, the magnitude of the induced voltage generated in the second coil 170 determines the position of the AF movable part. Displacement can be sensed.

[0253] Generally, for AF (Auto Focus) feedback control, the AF moving parts, For example, a position sensor capable of sensing the displacement of the bobbin and a separate device for driving the position sensor Since a power supply connection structure is required, the cost of the lens drive device increases and the manufacturing process becomes difficult. This may occur.

[0254] Also, the graph between the bobbin movement distance and the magnetic flux of the magnet detected by the position sensor The linear section (hereinafter referred to as the "first linear section") is the position between the magnet and the position sensor. There is a risk of restrictions on the relationship.

[0255] In this embodiment, a separate position sensor for detecting the displacement of the bobbin 110 is not required. Therefore, the cost of the lens driving device can be reduced and the ease of manufacturing can be improved. can.

[0256] In addition, since mutual induction between the first coil 120 and the second coil 170 is used, the first linear A graph of the relationship between the travel distance of the bobbin 110 and the induced voltage of the second coil 170 compared to the section The shape interval can be increased. This allows the embodiment to ensure linearity over a wide range. This can improve the process defect rate and provide more accurate AF feedback control. Cut.

[0257] Next, the base 210, the support member 220, the third coil 230, the position sensor 240, and The circuit board 250 will now be described.

[0258] The base 210 is connected to the cover member 300 and stores the bobbin 110 and the housing 140. The base 210 can form a receiving space. and a corresponding opening in the housing 140, and is aligned with the cover member 300. It may be of a matching or corresponding shape, for example a rectangular shape.

[0259] The base 210 is located below the bobbin 110 and the housing 140 and includes a circuit board 250. The terminal surface 253 may have a support groove or a support portion on the surface facing the terminal surface 253. do.

[0260] The corners of the base 210 may have grooves 212. When the corner of the cover member 300 has a protruding shape, the protruding portion of the cover member 300 is aligned with the groove 212. The base 210 may be fastened to the base 210 with a

[0261] The base 210 is recessed from the top surface, and the position sensors 240a and 240b are disposed thereon. Each position sensor mounting groove 215-1, 215-2 may be provided.

[0262] The position sensor 240 is an OIS (Optical Image Stabilizer ) Position sensors for OIS for feedback, the first position sensor 240a and and a second position sensor 240b.

[0263] The first and second position sensors 240a, 240b are mounted on a base located on the underside of the circuit board 250. The position sensor mounts 215a, 215b are disposed in respective position sensor mount grooves 215a, 215b of the base 210, and are mounted on the circuit board 25. For example, the first and second position sensors 240a, 240b may be electrically connected to It may be mounted on the rear surface of the circuit board 250, but is not limited to this.

[0264] For example, each of the first and second position sensors 215a, 215b is mounted on a circuit board 250. and the first and second position sensors 215a, 215b can receive a drive signal from the Each output may be output to a circuit board 250 .

[0265] The first and second position sensors 240a, 240b are aligned perpendicular to the optical axis (e.g., the Z axis). Sense the displacement of the housing 140 relative to the base 210 in any direction (e.g., the X-axis or Y-axis). For example, the housing 140 can be moved in the second direction and / or the third direction. At this time, the first and second position sensors 240a and 240b are released from the magnet 130. The change in magnetic force caused by the magnetic field can be sensed and a signal based on the sensed result can be output.

[0266] For example, the first and second position sensors 240a and 240b may be implemented as Hall sensors. Alternatively, the driver may include a Hall sensor. Any sensor that can detect position other than by magnetic force is acceptable.

[0267] With reference to the circuit board 250, the third coil 230 is disposed on the upper side, and the first and A first position sensor 240a, 240b may be disposed on the first position sensor 240a.

[0268] The circuit board 250 is disposed on the upper surface of the base 210 and is connected to the opening of the bobbin 110 and the housing. The apertures in the mounting 140 and / or the base 210 may be provided with corresponding apertures. .

[0269] The circuit board 250 has at least one terminal surface 253 bent from the top surface, and The circuit board 250 may include a plurality of terminals 251 provided on a terminal surface 253. may have terminal surfaces disposed on any two opposing sides of the upper surface. However, it is not limited to this.

[0270] For example, the circuit board 250 includes a support 252 connected to the first coil 120 and the second coil 170. A first terminal electrically connected to the support members 220-1 to 220-4 and a third coil 230- 1 to 230-4.

[0271] The circuit board 250 may be, but is not limited to, a flexible printed circuit board (FPCB). Instead, the circuit board 125 is connected to the surface of the PCB or base 210 using a surface electrode method or the like. 0 terminal may be configured.

[0272] The circuit board 250 has holes 250a through which the support members 220-1 to 220-4 can pass. Each of the support members 220-1 to 220-4 may be inserted into a hole 25 of the circuit board 250. 0a and a circuit pattern disposed on the bottom surface of the circuit board 250 through soldering, etc. The electrodes can be electrically connected to each other.

[0273] In addition, in other embodiments, the circuit board 250 may not have holes 250a, and each The support members 220-1 to 220-4 are arranged to support the circuit pattern or may be electrically connected to the pad through soldering or the like.

[0274] The circuit board 250 is attached to the upper surface of the base 210 by heat fusion or adhesive. The protrusion may further include a hole that couples with the protrusion.

[0275] The third coil 230 corresponds to or is aligned with the magnet 130 and is disposed on the top surface of the circuit board 250. The number of the third coils 230 is one or more, and is the same as the number of the magnets 130. It can be one, but is not limited to this.

[0276] For example, the third coil 230 is a multiple coil formed in a substrate 231 separate from the circuit board 250. The OIS coils 230-1 to 230-4 may include, but are not limited to, a number of OIS coils 230-1 to 230-4. In another embodiment, each of the OIS coils 230-1 to 230-4 is formed on a circuit board without a separate board. They may be spaced apart from each other on the plate 250 .

[0277] The substrate 231 on which the third coil 230 is formed is provided with the support members 220-1 to 220-4. A clearance groove 23 may be provided at each corner to allow clearance therebetween.

[0278] Each of the OIS coils 230-1 to 230-4 may be electrically connected to the circuit board 250. A drive signal, for example, a drive current, is provided to each of the OIS coils 230-1 to 230-4. It can be done.

[0279] Each of the magnets 130-1 to 130-4 and each of the OIS coils 230-1 to 230-4 The magnets 130 and the drive signal are aligned parallel to the axis. The electromagnetic force due to the interaction between the applied OIS coils 230-1 to 230-4 This allows the housing 140 to move in the second and / or third directions. The movement of the finger 140 can be controlled to compensate for hand tremors.

[0280] Next, the support member 220 will be described.

[0281] One end of the support member 220 is connected to the upper elastic member 150 by soldering or a conductive adhesive. The other end of the support member 220 may be coupled to a circuit board 250, but is not limited thereto. In other embodiments, the other end of the support member 220 is connected to the circuit member 231 and / or the base. In this case, the circuit member 220 may be connected to the other end of the support member 220. 31 or the base 210 may be electrically connected to a circuit board 250 .

[0282] The support members 220 are provided in a plurality of positions. The support members 220-1 to 220-4 are arranged in a housing. 140 , may be positioned to correspond to a second side 142 of the first side 140 .

[0283] Each of the plurality of support members 220-1 to 220-4 is connected to the upper portion through the solder 901. The springs 150-1 to 150-4 are connected to the first coupling portion 520 of one of the springs 150-1 to 150-4. The first coupling portion 520 may be electrically connected to the first coupling portion 520 .

[0284] The plurality of support members 220-1 to 220-4 are arranged so that the bobbin 110 and the housing 140 are supported in a first direction. The bobbin 110 and the housing 140 are supported so as to be movable in a direction perpendicular to the direction of the axis of the actuator. It is possible.

[0285] For example, each of the support members 220-1 to 220-4 has four second side portions 142. For example, each of the support members 220-1 to 220-4 may be located inside the ring-shaped second coil 170.

[0286] In FIG. 9, one support member is disposed on each of the second sides of the housing 140. This is not intended to be limiting.

[0287] In other embodiments, two or more support members are disposed on each of the second sides of the housing 140. The upper elastic member 150 may be disposed on at least one of the second sides of the housing 140. For example, the housing may include two or more upper elastic members spaced apart from each other. The two support members disposed on the second side of any one of the rings 140 are One of the two upper elastic members separated from each other and disposed on the second side of the It can be connected to one.

[0288] Each of the plurality of support members 220-1 to 220-4 is spaced apart from the housing 140. The upper springs 150-1 to 150-4 are not fixed to the frame 140. 1 may be directly connected to the first coupling portion 520 of the outer frame 152.

[0289] In another embodiment, the support member 220 is a plate spring attached to the side 141 of the housing 140. The electrodes may be arranged in the form of a block.

[0290] A plurality of support members 220-1 to 220-4 and each of the upper springs 150-1 to 150-4 A driving signal is transmitted from the circuit board 250 to the first coil 120 through the second coil 170. The induced voltage output from the may be transmitted to the circuit board 250.

[0291] For example, the second and third upper springs 150-2, 150-3 and the second and third supports The induced voltage of the second coil 170 is transmitted to the circuit board 250 through the members 220-2 and 220-3. In addition, the first and fourth upper springs 150-1, 150-4 and the first and A power supply or a drive signal is supplied from the circuit board 250 through the four support members 220-1 and 220-4. 1 coil 120.

[0292] The plurality of support members 220-1 to 220-4 are formed of a separate member from the upper elastic member 150. A member that can be supported by elasticity, such as a leaf spring, a coil spring, a suspension In another embodiment, each of the support members 220-1 to 220-4 may be formed integrally with the upper elastic member 150.

[0293] FIG. 11 is a plan view of FIG. 3, FIG. 12a is a perspective view of a first dotted line portion 41 of FIG. 11, and FIG. 2b is a perspective view of the second dotted line portion 42 in FIG.

[0294] 11, 12a, and 12b, a portion of the second coil 170 is disposed in the housing. 140 at least once around the first protruding portion 31a, and the first solder portion 71 The upper portion is connected to the second region S2 of the outer portion 510a of the upper spring (e.g., 150-1). It may be electrically connected to a spring (eg, 150-1).

[0295] Further, another part of the second coil 170 is at least partially attached to the second protruding portion 31b of the housing 140. The upper spring (e.g., 150-2 ) is connected to the second region S2 of the outer portion 510d of the first outer frame 152 of the upper spring 150-2).

[0296] A part of the second coil 170 disposed in the housing 140 is connected to the first protrusion 142 of the housing 140. The first outer frame of the upper spring 150-1 is wound at least once around the protruding portion 31a. 152, and the first extension line 17f and the first upper A first solder portion 71 may be disposed on the first outer frame 152 of the spring 150-1. In addition, the first solder part 71 connects the first extension wire 17f and the upper spring (for example, 50-1) and the first outer frame 152 may be electrically connected to each other.

[0297] Another part of the second coil 170 disposed in the housing 140 is 0 at least once around the second protruding portion 31b of the upper spring 150-2. The side frame 152 may include a second extension line 17g extending thereto. A second solder portion 72 is disposed on the first outer frame 152 of the upper spring 150-2. In addition, the second solder portion 72 can connect the second extension wire 17g and the upper spring 150. -2 may be electrically connected to the first outer frame 152.

[0298] The second coil 170 is wound at both ends around the first and second protrusions 31a and 31b of the housing 140. The reason is that one end of the second coil 170 and the first upper spring 15 are connected to each other without the need for separate wiring. The first outer frame of 0-1 is soldered, and the other end of the second coil 170 and the second upper spring This is to solder the first outer frame 150-2. The ends of the housing 140 are stably and firmly fixed to the first and second protrusions 31a and 31b of the housing 140. This makes it possible to prevent the second coil 170 from being broken due to an impact, and This is to prevent the second coil 170 from moving or shaking and to improve solderability.

[0299] For example, the second coil 170 is attached to the outer surface of the housing 140 (for example, the second coil mount). The first portion 17a is disposed in the groove 148, and is wound around the first protrusion 31a of the housing 140. a second portion 17b connected to one end of the first portion 17a; and a third portion 17c connecting one end of the first portion 17a to the second portion 17b. 7c, a fourth portion 17d wound around the second protruding portion 31b of the housing 140, and a first portion 1 A fifth portion 17e connects the other end of the second portion 17b to the fourth portion 17d. The sixth portion 17f is extended from one end of the fourth portion 17d, and the seventh portion 17g is extended from one end of the fourth portion 17d. It is possible to do so.

[0300] The third portion 17c of the second coil 170 is inserted into the groove 61 located on the first side of the housing 140. The fifth portion 17e of the second coil 170 may be disposed at the first end of the housing 140. It can be placed in a groove 61b located on three sides.

[0301] The first portion 17a is a portion where an induced voltage occurs due to interaction with the first coil 120. The second coil 170 is expressed as a “main body” of the second coil 170, and the second portion 17 b is expressed as the "first winding member" and the third Part 17c is expressed as the "first connection line" and the fourth part 17d is referred to as the "second winding portion" and the fifth portion 17e is referred to as the "second connecting line". It can be expressed.

[0302] For example, the first solder part 71 may be spaced apart from the second portion 17b of the second coil 170. In addition, the second solder part 72 may be spaced apart from the fourth portion 17d of the second coil 170. Therefore, the length of the second coil 170 can be further increased.

[0303] The second coil 170 may include a conductive wire and a coating (e.g., an insulating portion) that covers the conductive wire. The conductive wires of the first extension wire 17f and the second extension wire 17g of the second coil 170 are exposed from the coating. This is because the exposed conductive wire portion of the first extension wire 17f (or the second extension wire 17g) The second coil 170 is connected to the first solder part 71 (or the second solder part 72). -1 and the first and second lower springs 160-1, 160-2. This is the case.

[0304] The second coil 170 is connected to the first outer frame of each of the upper springs 150-2 and 150-3. Since the second coil 170 is extended to the second region S2 of the second coupling portion 510-1, the length of the second coil 170 is increased. The length of the second coil 170 can be increased, and the second coil 170 can be As a result, the magnitude of the induced voltage in the second coil 170 increases. Therefore, in order to detect the position of the bobbin 110 for the AF feedback drive, This can improve the sensitivity for the detection of ion beams.

[0305] In another embodiment, the first and second extension wires 17f, 17g are omitted and the second coil 170 is The first solder part may include first to fifth portions 17a to 17e of the second coil. The second solder joint 17b and the upper spring 150-2 are disposed on the second outer frame. The fourth portion of the second coil and the second outer frame of the upper spring 150-3 are disposed on the fourth portion of the second coil. At this time, the conductive wire of the second and fourth portions 17b, 17d of the second coil is removed from the coating. The first and second solder parts may expose the second coil and each of the upper springs 15. 0-2 and 150-3 may be electrically connected.

[0306] In another embodiment, the second coil 170 is disposed on the outer surface of the housing 140 (e.g., the second The first portion 17a is disposed in the coil mounting groove 148, and the first protrusion of the housing 140 is disposed in the coil mounting groove 148. The second portion 17b is wound around the second protruding portion 31a of the housing 140. The third portion 17d is a first connecting line (or a third connecting line) that connects one end of the first portion 17a to the second portion 17b. a first connecting line ( or a second connecting portion 17e, a first extension portion 17f extending from one end of the second portion 17b, and and a second extension portion 17g extending from one end of the fourth portion 17d.

[0307] The embodiment shown in FIG. 1 to FIG. 13 includes a first coil 120 and a second coil 122 for AF feedback operation. The induced voltage due to mutual induction between the second coil 170 is used. However, in other embodiments, For AF feedback operation, the second coil 170 may be omitted in FIGS. In addition, other embodiments may use an AF position sensor located on the housing 140 or the bobbin 110. In this case, the housing 140 or the bobbin 110 may include an AF position sensor. In another embodiment, the AF position sensor may be provided with a mounting groove. The housing 140 or the bobbin 110 may further include a circuit board for mounting the It is possible.

[0308] In another embodiment, the sensing element corresponding to the AF position sensor is arranged in a direction perpendicular to the optical axis. The AF position sensor is disposed on the bobbin 110. In this case, the sensing magnet may be disposed in the housing 140. When the sensor is disposed in the housing 140, the sensing magnet is attached to the bobbin 110. can be placed in

[0309] The AF position sensor is divided into multiple upper springs and / or at least one The circuit board 250 is connected to the lower spring and the support members 220-1 to 220-4. They may be electrically connected.

[0310] The AF position sensor may be implemented in the form of a driver including a Hall sensor, or Alternatively, the present invention may be implemented by a position detection sensor such as a ball sensor.

[0311] The AF position sensor has two input terminals to which drive signals are provided from the circuit board 250 and A F Sense the strength of the magnetic force of the magnet and / or the sensing magnet due to the movement of the moving part. and two output terminals for outputting signals according to the detected results.

[0312] Meanwhile, the lens driving device according to the above embodiment is applicable to various fields, for example, camera modules. Or it can be used for optical instruments.

[0313] For example, the lens driving device 100 according to the embodiment is configured to detect the characteristics of light, such as reflection, refraction, absorption, interference, etc. The goal is to increase the visual acuity of the eye by forming an image of an object in space using interference, diffraction, etc. For the purpose of recording and reproducing images through lenses, optical measurement, image propagation and transmission, etc. For example, the optical device according to the embodiment may be a smartphone. The present invention may include a portable terminal equipped with a smartphone and a camera.

[0314] FIG. 15 is an exploded perspective view of a camera module 200 according to an embodiment.

[0315] Referring to FIG. 15, the camera module 200 includes a lens or lens barrel 400, Lens driving device 100, adhesive member 612, filter 610, first holder 600, second holder A filter 800, an image sensor 810, a motion sensor 820, a control unit 830, and The first holder 600 may include a “sensor base (s The second holder 800 is expressed as a "circuit board" Or it can be expressed interchangeably as "substrate."

[0316] The lens or lens barrel 400 can be attached to the bobbin 110 of the lens driver 100. do.

[0317] The first holder 600 can be disposed below the base 210 of the lens driving device 100 . The filter 610 is attached to a first holder 600, which holds the filter 610 may include a protrusion 500 on which it is mounted.

[0318] The adhesive member 612 connects the base 210 of the lens driving device 100 to the first holder 600. The adhesive member 612 can be used for the lens driving or attachment in addition to the above-mentioned adhesive function. It can also serve to prevent foreign matter from entering the inside of the device 100 .

[0319] For example, the adhesive member 612 may be an epoxy, a heat curable adhesive, a UV curable adhesive, or the like. It is possible.

[0320] The filter 610 is used to filter out light of a specific frequency band from the light passing through the lens barrel 400. The filter 810 may function to block the light from entering the image sensor 810. The filter 610 can be, but is not limited to, an infrared blocking filter. In this embodiment, the filter 610 may be an infrared pass filter. It may be arranged parallel to the xy plane.

[0321] The first holder 600 has a portion where the filter 610 is mounted. An aperture may be formed to allow passing light to enter the image sensor 810 .

[0322] The second holder 800 is disposed below the first holder 600. An image sensor 810 may be implemented. The image sensor 810 may include a filter 610. The active area (ac) is where the light that passes through the active area enters and the image that the light contains is formed. The imaging area may include a tive area, an imaging region, or an effective area.

[0323] The second holder 800 receives an image formed on the image sensor 810 and converts it into an electrical signal. and transmitting the converted signal to an external device, various circuits, elements, control units, etc. may be provided. .

[0324] The second holder 800 is provided with an image sensor and a circuit pattern. The device may be embodied on a circuit board to which it is coupled.

[0325] The image sensor 810 detects the illumination contained in the light incident through the lens driving device 100. The optical fiber can receive an image and convert the received image into an electrical signal.

[0326] The filter 610 and the image sensor 810 are spaced apart from each other and face each other in a first direction. The above configuration may be adopted.

[0327] The motion sensor 820 is mounted on the second holder 800. The light emitting diode 820 may be electrically connected to the controller 830 through a circuit pattern formed thereon.

[0328] The motion sensor 820 detects the rotational angular velocity information based on the movement of the camera module 200. The motion sensor 820 is a 2-axis or 3-axis gyro sensor (Gyro S The present invention may be embodied as a rotational speed sensor, a phase sensor, or an angular velocity sensor.

[0329] The control unit 830 is mounted on the second holder 800. The second holder 800 is a lens drive The second holder 800 may be electrically connected to the lens driving device 100. For example, 00 may be electrically connected to the first coil 120 and the second coil 170 of the same.

[0330] For example, a driving signal is provided to the first coil 120 through the second holder 800, and the second coil The induced voltage of the second coil 170 can be transmitted to the second holder 800. For example, The induced voltage may be received by the control unit 830.

[0331] The connector 840 is electrically connected to the second holder 800 and electrically connected to an external device. The device may include a port for connection thereto.

[0332] The image sensor 810 includes a pixel array section including a plurality of unit pixels. A sensing control unit that provides each control signal for controlling each transistor, and a pixel array An analog signal output from each unit pixel of the ray section 905 is converted into a digital signal. The signal processing unit may include a digital conversion unit.

[0333] FIG. 16 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 18 is a perspective view of the portable terminal 200A shown in FIG. FIG. 2 is a diagram showing the configuration of a portable terminal 200A.

[0334] Referring to FIG. 16 and FIG. 17, a portable terminal 200A (hereinafter, referred to as "terminal") 8, the body 850, the wireless communication unit 710, the A / V input unit 720, the sensing unit 740, the input / output A power unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply The device may include a portion 790.

[0335] The body 850 shown in FIG. 16 is bar-shaped, but is not limited thereto. A slide type folder in which the upper sub-body is connected to allow relative movement. It can be of various structures such as a lock type, a swing type, and a swivel type. The body 850 includes a case (casing, housing, cover, etc.) that defines the exterior. can be done.

[0336] The wireless communication unit 710 is for communication between the terminal 200A and a wireless communication system or between the terminal 200A and One or more modules that enable wireless communication between the terminal 200A and the network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast receiving module 711, Mobile communication module 712, wireless internet module 713, short-range communication module The information processing module 714 and the location information module 715 may be included.

[0337] The A / V (Audio / Video) input unit 720 receives an audio signal or a video signal. For input, a camera 721 and a microphone 722 may be included.

[0338] The camera 721 may include a camera module 200 according to an embodiment.

[0339] The sensing unit 740 detects the open / closed state of the terminal 200A, the position of the terminal 200A, The terminal 200A is connected to the terminal 200A via a USB cable. Detects the current state of terminal 200A and generates a sensing signal to control the operation of terminal 200A. It can be done.

[0340] The input / output unit 750 is used to generate input or output related to vision, hearing, touch, etc. The input / output unit 750 receives input data for controlling the operation of the terminal 200A. The information processed by the terminal 200A can be displayed.

[0341] The input / output section 750 includes a keypad section 730, a display module 751, and an audio output. The keyboard 752 may include a touch screen panel 753. The unit 730 can generate input data by keypad input.

[0342] The display module 751 has a number of pixels that change color according to electrical signals. It can include.

[0343] The audio output module 752 is used for receiving call signals, speech mode, recording mode, and audio. The audio data received from the wireless communication unit 710 in the voice recognition mode or the broadcast reception mode is The audio data stored in the memory unit 760 can be output. do.

[0344] The touch screen panel 753 detects the user's touch on a particular area of ​​the touch screen. The change in capacitance caused by the switch can be converted into an electrical input signal.

[0345] The memory unit 760 stores a program for processing and controlling the control unit 780. For example, the memory unit 760 may store images captured by the camera 721, e.g. Photos or videos can be stored.

[0346] The interface unit 770 receives data from an external device, receives power, and transmits the data to the terminal 2. The data in the terminal 200A is transmitted to each component in the terminal 200A, and the data in the terminal 200A is transmitted to an external device. so that it can be sent.

[0347] The control unit 780 can control the overall operation of the terminal 200A. The control unit 780 performs related control and processing for voice communication, data communication, video communication, etc. It is possible to do so.

[0348] The control unit 780 includes a multimedia module 781 for multimedia playback, a camera A camera control unit 782 for controlling the camera, and a display control unit 783 for controlling the input / output unit 750. A play control unit 783 may be included.

[0349] The power supply unit 790 receives an external power source or an internal power source under the control of the control unit 780. This makes it possible to supply the power necessary for the operation of each component.

[0350] The features, structures, effects, etc. described in each of the above embodiments are applicable to at least one embodiment of the present invention. The present invention is not limited to only one embodiment. The features, structures, effects, etc. described in the above embodiments may be understood by those having ordinary skill in the art to which the embodiments pertain. The embodiments can be combined or modified. All such modifications and variations are to be construed as falling within the scope of the present invention. It would be. [Industrial Applicability]

[0351] The embodiment relates to a lens driving device capable of improving solderability, a camera module including the same, and It can be used in optical instruments.

Claims

1. housing; a bobbin disposed within the housing; a first coil disposed on the bobbin; a magnet disposed in the housing; an upper spring coupled to an upper portion of the bobbin and an upper portion of the housing; a circuit board disposed on an underside of the housing; a support member electrically connecting the upper spring and the circuit board; and a damper disposed on the upper spring; The upper spring is an outer portion coupled to the housing; A first coupling portion coupled to the support member; and a first connecting portion connecting the outer portion and the first connecting portion; The first coupling portion includes a first extension extending from the first coupling portion toward the outer portion. Further comprising a part The first extension portion is spaced apart from the outer portion, and the damper is disposed between the first extension portion and the outer portion. A lens drive device that connects the above.

2. 2. The method of claim 1, wherein the outer portion is coupled to the housing at a corner of the housing. The lens driving device described above.

3. The outer portion is a second coupling portion disposed on a first side of the housing and coupled to the housing; a second side portion of the housing adjacent to the first side portion and coupled to the housing; a third coupling part; and a second connecting portion connecting the second connecting portion and the third connecting portion; The first connecting portion is a third connecting portion connecting the second connecting portion and the first connecting portion; and a fourth connecting portion connecting the third connecting portion and the first connecting portion to each other. Lens drive unit.

4. The damper is disposed between the first extension portion and the second connection portion, The first extension portion is spaced apart from each of the third connecting portion and the fourth connecting portion.

4. The lens driving device according to claim 3.

5. The first extension portion is a second extension portion extending from the first coupling portion to the second coupling portion; a third extension portion extending from the first coupling portion to the third coupling portion; and a fourth extension portion extending from the first coupling portion to the second connecting portion. Lens drive unit.

6. The first extension portion is wider as it extends from the first coupling portion toward the outer portion. The lens driving device according to claim 1 , further comprising a portion having a width equal to or greater than the width of the lens driving device.

7. The portion of the first extension that corresponds to the outer portion includes a shape that corresponds to the shape of the outer portion. The lens driving device according to claim 1 .

8. The first coupling portion includes a coupling region coupled to the support member, A first length of the first coupling portion is greater than a second length of the first coupling portion; The first length is the length of the first bonded portion extending from the bonded region in the extension direction of the first extension portion. The second length is the distance from the joining region to one end of the first extension portion.

5. The distance from the first coupling part to the other end of the first coupling part extending in the opposite direction to the first coupling part. Lens drive unit.

9. The housing has an outer surface on one side thereof, and is induced by interaction with the first coil. The lens driving device according to claim 1 , further comprising a second coil for generating a voltage.

10. The housing includes a first protrusion and a second protrusion disposed on an upper surface thereof, the upper spring includes a first spring and a second spring, A portion of the second coil is wound around the first protrusion at least once, and the first spring Another part of the second coil is connected to the second protrusion at least once. The lens driving device according to claim 9 , wherein the first spring is wound and coupled with the second spring.

Images