JP7506781B2 - Lens drive device, camera device, and electronic device - Google Patents

Description

The present invention relates to a lens driving device, a camera device, and an electronic device used in electronic devices such as smartphones.

Camera devices equipped with a closed-loop controlled autofocus function and image stabilization function are known. Patent Document 1 is an example of a document relating to this type of camera device. In this type of camera device, a three-dimensional circuit is formed on the outer circumferential surface of the lens holder, and circuit elements such as position sensors are directly mounted on this three-dimensional circuit.

JP 2017-37306 A

However, the conventional technology described above requires a large amount of dedicated equipment for mounting circuit elements, which makes mass production difficult.

The present invention was made in consideration of these problems, and aims to provide a lens driving device that is easy to mass-produce.

In order to solve the above problem, a lens driving device according to a preferred embodiment of the present invention includes a carrier that holds a lens body, a frame that supports the carrier so that it can move in the direction of the optical axis of the lens body, a base that supports the frame so that it can move in a direction perpendicular to the optical axis, and an FPC that mounts and electrically connects circuit elements that detect the position of the carrier and drive the carrier in the direction of the optical axis, and the frame is formed by incorporating a first metal member and a second metal member that are bent elongated plate-like bodies into resin, the base is electrically connected to the exposed first end of the first metal member, the carrier is electrically connected to the exposed first end of the second metal member, and the FPC is attached to the frame and electrically connected to the exposed second ends of the first metal member and the second metal member.

In this embodiment, the second end may be exposed on one side of the frame parallel to the optical axis, and the FPC may be attached to this side.

Furthermore, each of the first ends may be exposed on a front side surface of the frame facing forward in the optical axis direction, the first end of the first metal member may be electrically connected to a first front spring that is electrically connected to a suspension wire extending from the base, and the first end of the second metal member may be electrically connected to a second front spring that is fixed to the carrier.

The first metal member and the second metal member may be provided such that the second end portion extends from the rear side to the front side in the optical axis direction on the side surface of the frame with the plate surface of the plate-shaped body facing outward, the plate surface is bent in front of the second end portion so as to face the front side to form a horizontal portion, and the first end portion is bent in a crank shape from the horizontal portion and is located forward of the horizontal portion with the plate surface facing forward.

In this aspect, the first metal member and the second metal member may be provided such that the second end portion extends from the rear side to the front side in the optical axis direction on the side surface of the frame with the plate surface of the plate-shaped body facing outward, the plate surface is bent in front of the second end portion so as to face the front side to form a horizontal portion, and the first end portion may be bent forward so as to form a crease in a direction perpendicular to the direction in which the horizontal portion extends.

Further, the first metal member and the second metal member are provided such that the second end portion extends from the rear side to the front side in the optical axis direction on a side surface of the frame with a plate surface of the plate-shaped body facing outward,
A horizontal portion is formed in front of the second end portion by bending in a direction perpendicular to the optical axis while the plate surface faces outward, and the first end portion may be bent forward while the plate surface faces outward.

The circuit element may have a Hall element, and the carrier may be provided with a position detection magnet facing the circuit element.

Also, there may be four first metal members and two second metal members.

The carrier may also be provided with a driving coil electrically connected to the first end of the second metal member, and the frame may also be provided with a driving magnet facing the driving coil.

A camera device that is another preferred embodiment of the present invention is characterized by including the lens driving device described above.

Another preferred embodiment of the present invention is an electronic device that includes the camera device described above.

The lens driving device according to the present invention includes a carrier that holds a lens body, a frame that supports the carrier so that it can move in the direction of the optical axis of the lens body, a base that supports the frame so that it can move in a direction perpendicular to the optical axis, and an FPC that mounts and electrically connects a circuit element that detects the position of the carrier and drives the carrier in the direction of the optical axis. The frame is formed by incorporating a first metal member and a second metal member that are folded elongated plate-like bodies into resin, the base is electrically connected to the exposed first end of the first metal member, the carrier is electrically connected to the exposed first end of the second metal member, and the FPC is attached to the frame and electrically connected to the exposed second ends of the first metal member and the second metal member. Therefore, according to the present invention, the frame can be formed by insert molding, and an FPC equipped with a circuit element is attached to the frame and electrically connected to the first metal member and the second metal member. Since no dedicated equipment is required for mounting circuit elements, it is easy to automate production and mass production.

1 is a front view of a smartphone 100 equipped with a camera device 3 including a lens driving device 5 according to a first embodiment of the present invention. FIG. 2 is a perspective view of the lens driving device 5 of FIG. 1 . FIG. 3 is an exploded perspective view of the lens driving device 5 of FIG. 2 . FIG. 4 is an exploded perspective view of FIG. 3 turned upside down; FIG. 4 is an exploded perspective view of the AF unit 20 in FIG. 3 . FIG. 6 is an exploded perspective view of FIG. 5 turned upside down. 7 is a view of the front support portion 21 in FIGS. 3 to 6 as viewed from the +Z side. FIG. 3 is a view of the lens driving device 5 in FIG. 2 excluding the case 10, as viewed from the +Z side. This is a view of the frame 24 as seen from the +Z side. FIG. 10 is a perspective view of the frame 24 of FIG. 9 . 1A is a view of frame 24 from the +Z side, with internal metal members T1 to T6 indicated by dashed lines; FIG. 1B is a view of frame 24 from the -Y side, with internal metal members T1 to T6 indicated by dashed lines; FIG. 1C is a view of metal members T1 to T6 from the -X side; FIG. 1D is a view of metal members T1 to T6 from the +X side; FIG. 1E is a view of metal members T1 to T6 from the +Z side; and FIG. 1F is a view of metal members T1 to T6 from the -Y side. 11 is a perspective view of the frame 24 of FIG. 10 as seen from another angle. 1 is a diagram showing an AF drive FPC 60 to which an AF drive IC 61 is fixed, as viewed from the +Y side. 2 is a diagram showing a connection state between the AF drive FPC 60 and the frame 24. FIG. FIG. 11 is a perspective view of a frame 24a according to a second embodiment of the present invention. 15. FIG. 15(a) is a view of the metal members T1 to T6 of the frame 24a from the +Z side, and FIG. 15(b) is a view of the metal members T1 to T6 from the -Y side. FIG. 11 is a perspective view of a frame 24b according to a third embodiment of the present invention. 17A is a view of the metal members T1 to T6 of the frame 24a in FIG. 17 from the -X side, FIG. 17B is a view of the metal members T1 to T6 from the +X side, FIG. 17C is a view of the metal members T1 to T6 from the +Z side, and FIG. 17D is a view of the metal members T1 to T6 from the -Y side.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a camera device 3 including a lens driving device 5 according to a first embodiment of the present invention is housed within the housing of a smartphone 9.

The camera device 3 has a lens body 6, an image sensor 7 that converts the light incident through the lens body 6 into an image signal, and a lens driving device 5 that drives the lens body 6.

Below, the configuration of the lens drive device 5 will be described assuming an XYZ Cartesian coordinate system consisting of a Z axis parallel to the optical axis of the lens body 6, and an X axis and a Y axis that are mutually orthogonal and orthogonal to the Z axis. In addition, the side of the lens body 6 facing the subject is sometimes referred to as the front side, and the opposite side (the image sensor 7 side) as the rear side. The front side corresponds to the +Z side, and the rear side corresponds to the -Z side.

As shown in Figures 3 and 4, the lens driving device 5 is a housing formed by combining a base 33 and a case 10, and contains the front support part 21, carrier 22, AF coil 23, frame 24, driving magnet 52, rear support part 25, coil plate 31, base FPC 32, suspension wires 411-414, etc., and has a roughly rectangular parallelepiped shape as shown in Figure 2. A through hole 11 is provided in the center of the lens driving device 5, which runs through in the Z direction and allows incident light from the subject to pass through.

The components inside the housing of the lens drive device 5 can be broadly divided into an AF (Auto Focus) section 20 and an OIS (Optical Image Stabilization) section 30, which are connected by suspension wires 411-414. The AF section 20 achieves autofocus by driving the carrier 22 that holds the lens body 6 in the Z-axis direction. The OIS section 30 achieves image stabilization by driving the AF section 20 together with the carrier 22 in the X-axis and Y-axis directions.

The AF unit 20 has a front support part 21, a carrier 22, an AF coil 23, a frame 24, a drive magnet 52, and a rear support part 25. The frame 24 is a hollow, roughly rectangular cylindrical member, and holds four trapezoidal column-shaped drive magnets 52 at its four inner corners.

The carrier 22 is a substantially annular member having a lens holding hole 221 that holds the lens body 6 in FIG. 1. The lens holding hole 221 is one of the through holes 11. The AF coil 23 is wound around and fixed in a groove 222 on the outer surface of the carrier 22 so as to surround the carrier 22. The AF sensor magnet 51 is fitted and fixed in a recess 223 on the outer surface of the carrier 22. The carrier 22 to which the AF coil 23 and the AF sensor magnet 51 are fixed is housed in a frame 24. At this time, the AF coil 23 faces each of the drive magnets 52, and the AF sensor magnet 51 faces the AF drive IC 61.

As shown in FIG. 5, the metallic rear support part 25 has a central ring-shaped inner part 251, four outer parts 252 surrounding the inner part 251, and four spring parts 253 connecting the inner part 251 and each outer part 252.

The inner portion 251 of the rear support portion 25 supports the -Z side surface of the carrier 22. The four outer portions 252 are fixed to the four corners of the -Z side surface of the frame 24. In other words, the rear support portion 25 is interposed between the carrier 22 and the frame 24, and elastically supports the carrier 22 from the -Z side relative to the frame 24.

As shown in FIG. 7, the metallic front support part 21 is composed of four first front springs 211-214 and two second front springs 215-216. The first front springs 211-214 and the second front springs 215-216 are electrically insulated from each other, but are all fixed to the frame 24. The front support part 21 has an approximately square outer shape when viewed from the Z direction, with the first front springs 211-214 located at each outer corner and the second front springs 215-216 located on the inside.

The first front springs 211, 212, 213, 214 each have an outer portion 2111, 2121, 2131, 2141 and two first spring portions 2113, 2123, 2133, 2143. The outer portions 2111, 2121, 2131, 2141 are fixed to the +Z side surface of the frame 24. The outer portions 2111, 2121, 2131, 2141 are provided with connection portions 2112, 2122, 2132, 2142, respectively, which are electrically connected to the first metal members T2 to T5 described below. The two first spring parts 2113, 2123, 2133, 2143 extend outward from the outer parts 2111, 2121, 2131, 2141 so as to form the equilateral sides of a right-angled isosceles triangle, and wire support parts 2114, 2124, 2134, 2144 are formed at the intersections.

The second front springs 215, 216 each have two outer parts 2151, 2161, two inner parts 2153, 2163, and second spring parts 2154, 2164 that connect the outer parts 2151, 2161 to the inner parts 2153, 2163. Each outer part 2151, 2161 is fixed to the +Z side surface of the frame 24. Each inner part 2153, 2163 is fixed to the +Z side surface of the carrier 22. One of the outer parts 2151, 2161 is provided with connection parts 2152, 2162, which are electrically connected to the second metal members T1, T6 described later. The inner parts 2153, 2163 are provided with connection parts 2155, 2165, which are electrically connected to the AF coil 23, respectively.

In this way, the second front springs 215 and 216 are fixed to the frame 24 and elastically support the carrier 22 from the +Z side relative to the frame 24.

As shown in Figs. 3 and 5, an AF drive FPC 60 is disposed on the outer surface on the -Y side of the frame 24. As shown in Fig. 6, an AF drive IC 61 is mounted on the surface on the +Y side of the AF drive FPC 60. The AF drive IC 61 is a circuit element that receives power from the base FPC 32 (described later) and drives the carrier 22 in the direction of the optical axis. The AF drive IC 61 is accommodated in an accommodation hole 249 provided in the frame 24. The AF drive IC 61 has a magnetic position sensor, such as a Hall element, and detects the position of the carrier 22 in the Z-axis direction by detecting the magnetic field of the AF sensor magnet 51. Then, based on this detected position, power is supplied to the AF coil 23, and autofocus control is performed to drive the carrier 22 to an appropriate position. The internal structure of the frame 24, the power supply path between the base FPC 32 and the AF drive IC 61, and the power supply path between the AF drive IC 61 and the AF coil 23 will be described later.

As shown in Figures 3 and 4, in the OIS section 30, the coil plate 31 and the base FPC 32 are stacked and fixed on the base 33, and a through hole that forms part of the through hole 11 is provided in the center of each. The coil plate 31 and the base FPC 32 are also electrically connected. The coil plate 31 has holes 311 at each of the four corners. In addition, in the coil plate 31, an OIS drive coil (not shown) is arranged in the area between each hole 311 and the central through hole, and each faces the drive magnet 52.

Two OIS drive ICs 325 shown in FIG. 4 are mounted on the rear surface of the base FPC 32. The OIS drive ICs 325 are located behind the drive magnets 52 on the -X+Y side and the -X-Y side, respectively, and detect the magnetic field of the opposing drive magnets 52 to detect the position of the AF unit 20 in the XY direction. Based on this detected position, the OIS drive IC 325 supplies power to the OIS drive coil, drives the AF unit 20 in the XY direction, and performs image stabilization control to position the carrier 22 together with the AF unit 20 in the appropriate position in the XY direction. The end of the -Y side of the base FPC 32 is an FPC input/output unit 323 bent to the -Z side, and is electrically connected to the outside. The OIS drive IC 325 is connected to the FPC input/output unit 323. As shown in FIG. 3, holes 321 are provided at the four corners of the base FPC 32 at positions corresponding to the holes 311 of the coil plate 31, each forming one through hole.

The base 33 is a member that supports the entire lens driving device 5. The base 33 has notches at its four corners.

One end of each of the four metal suspension wires 411-414 is fixed by soldering from the rear side of the hole 321 of the base FPC 32 and accommodated in a notch in the base 33, and the other end is fixed by soldering to the wire support parts 2114, 2124, 2134, 2144 of the front support part 21 of the AF unit 20. In this way, in the lens driving device 5, the AF unit 20 is supported by the base 33 via the front support part 21 and the four suspension wires 411-414 so as to be movable in the XY directions perpendicular to the optical axis. In addition, the first front springs 211-214 of the front support part 21 are electrically connected to the base FPC 32 via the suspension wires 411-414.

Next, the internal structure of the frame 24 in this embodiment, the power supply path between the base FPC 32 and the AF drive IC 61, and the power supply path between the AF drive IC 61 and the AF coil 23 will be described. First, as shown in Figures 5 and 8, two columnar parts 224 protrude in the +Z direction from the outer end of the +Z side surface of the carrier 22, and the ends of the AF coil 23 are wound around these to form terminals 225 and 226. The terminals 225 and 226 are electrically connected to connection parts 2155 and 2165 provided on the inner parts 2153 and 2163 of the second front springs 215 and 216, respectively.

As shown in Figures 9 and 10, first metal members T2 to T5 which form part of the wiring between the AF drive IC 61 and the four suspension wires 411 to 414, and second metal members T1 and T6 which form part of the wiring between the AF drive IC 61 and the AF coil 23 are insert-molded into the frame 24. The first metal members T2 to T5 and the second metal members T1 and T6 are folded plate-like bodies which are embedded in resin with both ends exposed from the resin. The first metal members T2 to T5 and the second metal members T1 and T6 are sometimes simply referred to as metal members T1 to T6. These metal members T1 to T6 include horizontal portions T1h to T6h which extend along the XY plane. The first ends T2a, T3a, T4a, and T5a of the first metal members T2, T3, T4, and T5, and the first ends T1a and T6a of the second metal members T1 and T6 are exposed on the front side surface facing the front side on the +Z side of the frame 24. In addition, the second ends T1b, T2b, T3b, T4b, and T5b of the first metal members T2, T3, T4, and T5, and the second ends T1b and T6b of the second metal members T1 and T6 are exposed on the side surface facing the -Y side on the -Y side. The second metal members T1b to T6b are arranged in this order from the -X side.

As shown in FIG. 8, the second front spring 215, to which the terminal 225 of the AF coil 23 is electrically connected at the connection portion 2155, is electrically connected to the first end T6a of the second metal member T6 at the connection portion 2152. In addition, the second front spring 216, to which the terminal 226 of the AF coil 23 is electrically connected at the connection portion 2165, is electrically connected to the first end T1a of the second metal member T1 at the connection portion 2162.

8, the first front spring 211 electrically connected to the suspension wire 411 at the wire support portion 2114 is electrically connected to the first end T2a of the first metal member T2 at the connection portion 2112. The first front spring 212 electrically connected to the suspension wire 412 at the wire support portion 2124 is electrically connected to the first end T3b of the first metal member T3 at the connection portion 2122. The first front spring 213 electrically connected to the suspension wire 413 at the wire support portion 2134 is electrically connected to the first end T4b of the first metal member T4 at the connection portion 2132. The first front spring 214 electrically connected to the suspension wire 414 at the wire support portion 2144 is electrically connected to the first end T5a of the first metal member T5. Here, the electrical connection refers to an electrical connection by soldering, welding, etc.

As shown in FIG. 13, the AF drive IC 61 is pre-placed in the center of the +Y side surface of the AF drive FPC 60. There are six pads on the back surface of the AF drive IC 61 that allow the AF drive IC 61 to supply and receive power or send and receive signals. In the AF drive FPC 60, electrodes A1 to A3 connected to three of the six pads are arranged in the X-axis direction on the -X side of the AF drive IC 61, and electrodes A4 to A6 connected to the remaining three pads are arranged in the X-axis direction on the +X side of the AF drive IC 61.

As shown in Figures 10 and 12, the -Y side wall of the frame 24 has a housing hole 249 for housing the AF drive IC 61. The AF drive FPC 60 houses the AF drive IC 61 in the housing hole 249 and is fixed to the -Y side wall of the frame 24 from the -Y side. Then, as shown in Figures 12 and 14, the second ends T1b to T6b of the metal members T1 to T6 are connected to the corresponding electrodes A1 to A6 of the AF drive FPC 60 by soldering or the like.

Next, the internal structure of the frame 24, i.e., the configuration of the metal members T1 to T6, will be described. As shown in FIG. 11, the metal members T1 to T6 are provided so that the second ends T1b to T6b of the metal members extend from the rear to the front in the optical axis direction on the side surface on the -Y side of the frame 24 with the plate surface of the plate-like body facing outward. The metal members T1 to T6 are bent in front of the second ends T1b to T6b so that the plate surface faces forward to form horizontal portions T1h to T6h. The horizontal portions T1h to T6h extend to predetermined positions. The first ends T1a to T6a are bent in a crank shape from the horizontal portions T1h to T6h at predetermined positions so that the plate surface faces forward and is positioned further forward than the horizontal portions T1h to T6h. The tips of the second ends T1b to T6b are completely exposed, but the rest are covered with resin except for the part where the AF drive FPC 60 is fixed, and the horizontal parts T1h to T6h are completely covered with resin. Only the faces of the first ends T1a to T6a facing forward are exposed, and the other faces are covered with resin. In this embodiment, the length of the horizontal parts T3h and T4h is 0.

With the above configuration, the following six electrical wirings are formed in this embodiment.
First electrical wiring: base FPC 32 → suspension wire 411 → first front spring 211 → first metal member T2 → electrode A2 (AF drive FPC 60) → AF drive IC 61
Second electrical wiring: base FPC 32 → suspension wire 412 → first front spring 212 → first metal member T3 → electrode A3 (AF drive FPC 60) → AF drive IC 61
Third electrical wiring: base FPC 32 → suspension wire 413 → first front spring 213 → first metal member T4 → electrode A4 (AF drive FPC 60) → AF drive IC 61
Fourth electrical wiring: base FPC 32 → suspension wire 414 → first front spring 214 → first metal member T5 → electrode A5 (AF drive FPC 60) → AF drive IC 61
Fifth electrical wiring: AF drive IC 61 → electrode A1 (AF drive FPC 60) → second metal member T1 → second front spring 216 → terminal 226 → AF coil 23
Sixth electrical wiring: AF drive IC 61 → electrode A6 (AF drive FPC 60) → second metal member T6 → second front spring 215 → terminal 225 → AF coil 23

The metal members T1 to T6 are formed integrally with the frame 24 by insert molding, and therefore can be mass-produced at low cost. This also allows the first ends T1a to T6a and the second ends T1b to T6b to be formed with good positional accuracy. The AF drive IC 61 can be mass-produced at low cost without requiring special equipment, as it only needs to be fixed to and electrically connected to the flat AF drive FPC 60. The AF drive FPC 60 can also be fixed to the frame 24 and electrically connected to the metal members T1 to T6 at low cost without requiring special equipment. Therefore, the lens drive device 5 of this embodiment does not require dedicated equipment for mounting circuit elements, and is therefore easy to automate and mass-produce.

The above is the details of this embodiment. The lens driving device 5 according to this embodiment includes a carrier 22 that holds the lens body 6, a frame 24 that supports the carrier 22 so that it can move in the direction of the optical axis of the lens body 6, a base 33 that supports the frame 24 so that it can move in a direction perpendicular to the optical axis, and an AF drive FPC 60 that is an FPC that mounts and electrically connects an AF drive IC 61 that is a circuit element that detects the position of the carrier 22 and drives the carrier 22 in the direction of the optical axis. The frame 24 is formed by incorporating the first metal members T2 to T5 and the second metal members T1 and T6, which are bent elongated plate-like bodies, into resin. The base 33 is electrically connected to the exposed first ends T2a to T5a of the first metal members T2 to T5. The carrier 22 is electrically connected to the exposed first ends T1a and T6a of the second metal members T1 and T6. The AF drive FPC 60 is attached to the frame 24 and is electrically connected to the exposed second ends T1b-T6b of the first metal members T2-T5 and the second metal members T1 and T6.

Therefore, according to this embodiment, the frame 24 can be formed by insert molding, and the AF drive FPC 60 equipped with the AF drive IC 61 is attached to the frame 24 and electrically connected to the first metal members T2 to T5 and the second metal members T1 and T6. As a result, no dedicated equipment is required for mounting circuit elements, making automated production easy and mass production easy.

Next, the configuration of the metal members T1 to T6 of the frame 24a in the second embodiment of the present invention will be described with reference to Figures 15 and 16. The metal members T1 to T6 of the frame 24a are provided so that the second ends T1b to T6b of the metal members extend from the rear side to the front side in the optical axis direction on the side of the frame 24a with the plate surface of the plate-like body facing outward. The plate surface is bent in front of the second ends T1b to T6b so that it faces the front side to form the horizontal parts T1h to T6h. The horizontal parts T1h to T6h extend to a predetermined position. The first ends T1a to T6a are bent forward at a predetermined position so that a crease is made in a direction perpendicular to the extension direction of the horizontal parts T1h to T6h. That is, in this second embodiment, the tips of the first ends T1a to T6a of the metal members T1 to T6 protrude from the surface on the +Z side of the frame 24a. Other points are the same as those of the first embodiment.

As with the first embodiment, the second embodiment also has the advantage of being easy to automate and mass-produce. In particular, since the first ends T1a to T6a in the second embodiment are simply bent forward, the first ends T1a to T6a are easier to manufacture, but the first ends T1a to T6a in the first embodiment are easier to electrically connect.

Next, the configuration of the metal members T1-T6 of the frame 24b in the third embodiment of the present invention will be described with reference to Figures 17 and 18. The metal members T1-T6 of the frame 24b are provided such that the second ends T1b-T6b of the metal members extend from the rear side to the front side in the optical axis direction on the side of the frame 24b with the plate surface of the plate-like body facing outward. In front of the second ends T1b-T6b, the plate surface bends in a direction perpendicular to the optical axis while facing outward to form horizontal portions T1h-T6h. The horizontal portions T1h-T6h extend to a predetermined position. The first ends T1a-T6a are bent forward at a predetermined position with the plate surface facing outward. However, in this third embodiment, the first end T3a bends forward from the diagonal portion midway between the second end T3b and the horizontal portion T3h, and the first end T4a bends forward from the diagonal portion midway between the second end T4b and the horizontal portion T4h.

In this third embodiment, the horizontal portions T1h-T3h of the metal members T1-T3 and the horizontal portions T4h-T6h of the metal members T4-T6 are aligned in the Z-axis direction within the side wall of the frame 24b. When viewed from the Z direction, the metal members T1-T6 only require dimensions in the plate thickness direction. Therefore, the frame thickness in the direction perpendicular to the Z axis of the frame 24b when viewed from the Z direction can be made thin. As with the first and second embodiments, this third embodiment does not require dedicated equipment for mounting circuit elements, which results in the effect of facilitating automated production and mass production. In this third embodiment, in order to make the arrangement of the first ends T1a to T6a the same as in the first and second embodiments, the second metal member T1 and the first metal member T2 are swapped so that the positions of the second end T1b and the second end T2b are swapped, and the first metal member T5 and the second metal member T6 are swapped so that the positions of the second end T5b and the second end T6b are swapped.

5 Lens driving device 6 Lens body 7 Image sensor 8 Camera device 9 Smartphone 10 Case 11 Through hole 20 AF section 21 Front support section 211 to 214 First front spring 215 to 216 Second front spring 2111, 2121, 2131, 2141, 2151, 2161 Outer section 2112, 2122, 2132, 2142, 2152, 2162 Connection section 2113, 2123, 2133, 2143 First spring section 2114, 2124, 2134, 2144 Wire support section 2153, 2163 Inner section 2154, 2164 Second spring section 2155, 2165 Connection section 22 Carrier 221 Lens holding hole 222 Groove 223 Recess 224 Pillar portion 225, 226 Terminal 23 AF coil 24, 24a, 24b Frame 249 Housing hole 25 Rear support portion 251 Inner portion 252 Outer portion 253 Spring portion 30 OIS portion 31 Coil plate 311 Hole 32 Base FPC
321 Hole 323 FPC input/output section 325 OIS drive IC
33 Base 411 to 414 Suspension wire 51 AF sensor magnet 52 Drive magnet 60 AF drive FPC
61 AF drive IC
A1 to A6 electrodes T2 to T5 first metal member T1, T6 second metal member T1a to T6a first end T1b to T6b second end T1h to T6h horizontal portion

Claims (11)

A carrier for holding a lens body;
a frame that supports the carrier so as to be movable in a direction of the optical axis of the lens body;
a base that supports the frame so as to be movable in a direction perpendicular to the optical axis;
and an FPC mounted with and electrically connected to a circuit element that detects the position of the carrier and drives the carrier in the direction of the optical axis,
The frame is formed by incorporating a first metal member and a second metal member, which are bent elongated plate-like bodies, into a resin,
the base is electrically connected to a first exposed end of the first metal member and the carrier is electrically connected to a first exposed end of the second metal member;
The FPC is attached to the frame and electrically connected to the exposed second ends of the first metal member and the second metal member. The lens driving device according to claim 1, wherein the second end is exposed on one side of the frame parallel to the optical axis, and the FPC is attached to this side. The lens driving device according to claim 1, wherein each of the first ends is exposed on a front side of the frame facing forward in the optical axis direction, the first end of the first metal member is electrically connected to a first front spring that is electrically connected to a suspension wire extending from the base, and the first end of the second metal member is electrically connected to a second front spring that is fixed to the carrier. the first metal member and the second metal member are provided such that the second end portion extends from the rear side to the front side in the optical axis direction on a side surface of the frame with a plate surface of the plate-shaped body facing outward,
A horizontal portion is formed by bending the plate surface at a front side of the second end portion so that the plate surface faces the front side,
2 . The lens driving device according to claim 1 , wherein the first end portion is bent in a crank shape from the horizontal portion, and the plate surface is positioned forward of the horizontal portion while facing forward. the first metal member and the second metal member are provided such that the second end portion extends from the rear side to the front side in the optical axis direction on a side surface of the frame with a plate surface of the plate-shaped body facing outward,
A horizontal portion is formed by bending the plate surface at a front side of the second end portion so that the plate surface faces the front side,
2. The lens driving device according to claim 1, wherein the first end is bent forward so as to form a crease in a direction perpendicular to the direction in which the horizontal portion extends. the first metal member and the second metal member are provided such that the second end portion extends from the rear side to the front side in the optical axis direction on a side surface of the frame with a plate surface of the plate-shaped body facing outward,
A horizontal portion is formed by bending the plate surface at a front side of the second end portion in a direction perpendicular to the optical axis while the plate surface faces outward,
The lens driving device according to claim 1 , wherein the first end portion is bent forward with the plate surface facing outward. The lens driving device according to claim 1, wherein the circuit element has a Hall element, and the carrier is provided with a position detection magnet facing the circuit element. The lens driving device according to claim 7, wherein there are four first metal members and two second metal members. The lens driving device according to claim 7, wherein a driving coil is provided on the carrier and electrically connected to the first end of the second metal member, and a driving magnet is provided on the frame facing the driving coil. A camera device equipped with the lens drive device according to claim 1. An electronic device equipped with the camera device according to claim 10.