JP5784483B2 - Lens drive device - Google Patents

Description

  The present invention relates to a lens driving device mounted on a relatively small camera used in a mobile phone or the like.

  Conventionally, as a lens driving device for driving a photographing lens of a camera mounted on a mobile phone or the like, a moving body that holds the lens and moves in the optical axis direction, and a support that holds the moving body so as to be movable in the optical axis direction A lens driving device including a body, a driving coil and a driving magnet for driving the moving body in the optical axis direction is known (see, for example, Patent Document 1). In the lens driving device described in Patent Document 1, the moving body and the support body are connected to each other by leaf springs arranged on both ends in the optical axis direction of the moving body. Of the leaf springs arranged on both ends in the optical axis direction of the moving body, the leaf spring arranged on the side opposite to the subject is constituted by two divided spring pieces. The spring piece includes a moving side fixing portion fixed to the moving body, a supporting side fixing portion fixed to the supporting body, and an arm portion connecting the moving side fixing portion and the supporting side fixing portion. ing. Each of the two spring pieces is electrically connected to both ends of the driving coil.

  Further, the lens driving device described in Patent Document 1 includes a pair of power supply terminals for supplying a current to the driving coil. The power supply terminal includes an external connection terminal connected to an external connector, an internal connection terminal connected to the spring piece, and a routing portion that connects the external connection terminal and the internal connection terminal. The external connection terminal is formed so as to be connected to one end of the routing portion, and is formed on the same plane as the routing portion. The internal connection terminal is formed so as to be connected to the other end of the routing portion, and is bent at a right angle with respect to the routing portion. That is, the power supply terminal is formed by bending a flat metal member so that the shape when viewed from the optical axis direction is substantially L-shaped.

  The lens driving device described in Patent Document 1 is formed so that the shape when viewed from the optical axis direction is a substantially square shape, and the pair of power supply terminals is adjacent to two of the four corners of the lens driving device. It is being fixed to the holder which comprises a support body so that the bending part may be arrange | positioned at one corner. The pair of power supply terminals are fixed to the holder so that the external connection terminals are adjacent to each other. Further, the pair of power supply terminals are fixed to the holder by inserting a lead portion into a slit-like groove formed in the holder.

  Each of the pair of power supply terminals is electrically connected to each of the two spring pieces. Specifically, the spring piece is formed so that the connected portion arranged on the outer peripheral side of the arm portion of the spring piece is connected to the fixing portion on the support side, and is internally connected to the connected portion of the spring piece. Each of the pair of power supply terminals is electrically connected to each of the two spring pieces by soldering the service terminals.

JP 2010-66286 A

  The position in the thickness direction of the external connection terminal connected to the external connector may differ depending on the camera model on which the lens driving device is mounted. However, in the lens driving device described in Patent Document 1, the external connection terminal is formed on the same plane as the routing portion fixed to the slit-like groove formed in the holder. Therefore, if the position of the external connection terminal in the thickness direction differs depending on the camera model, the holder must be designed and manufactured for each camera model, which increases the cost of the lens driving device.

  Therefore, the problem of the present invention is that even if the position of the terminal portion of the power supply terminal connected to the external device for supplying current to the drive coil is changed by a host device such as a camera on which the lens driving device is mounted, An object of the present invention is to provide a lens driving device that can eliminate the need to design and manufacture a holding member for holding a power feeding terminal for each host device.

  In order to solve the above problems, a lens driving device of the present invention includes a movable body that holds a lens and is movable in the optical axis direction of the lens, a fixed body that holds the movable body so as to be movable in the optical axis direction, and a drive And a pair of power supply terminals for supplying current to the drive coil, and the fixed body holds the power supply terminal. A holding member is provided, and the power supply terminal includes a flat plate-like fixing portion that is fixed to the holding member, and a terminal portion that is connected to an external device for supplying current to the driving coil, as viewed from the optical axis direction. Sometimes, the terminal portion is arranged at a position shifted from the fixing portion in the thickness direction of the fixing portion, and the holding member is arranged such that an arrangement hole in which a part of the power feeding terminal is arranged penetrates in the optical axis direction. The width of the arrangement hole in the thickness direction of the fixed part is Characterized in that it is a maximum distance above the outer surface and the outer surface of the fixed portion of the terminal portion in the thickness direction.

  In the lens driving device of the present invention, the power feeding terminal includes a flat plate-like fixing portion that is fixed to a holding member that holds the power feeding terminal, and a terminal portion that is connected to an external device for supplying current to the driving coil. The terminal portion is arranged at a position shifted from the fixed portion in the thickness direction of the fixed portion when viewed from the optical axis direction. Therefore, in the present invention, it is possible to change the position of the terminal portion connected to the external device in the thickness direction by changing the shift amount of the terminal portion with respect to the fixed portion.

  In the present invention, the holding member is provided with an arrangement hole in which a part of the power supply terminal is arranged, and the width of the arrangement hole in the thickness direction of the fixing portion is fixed to the outer surface of the terminal portion in the thickness direction of the fixing portion. It is more than the longest distance with the outer surface of the part. Therefore, in the present invention, even if the position of the terminal portion connected to the external device is changed by a host device such as a camera on which the lens driving device is mounted, a part of the power feeding terminal can be arranged in the arrangement hole. It becomes possible. Therefore, according to the present invention, it is possible to eliminate the need to design and manufacture the holding member for each host device even if the position of the terminal portion changes depending on the host device on which the lens driving device is mounted.

  In the present invention, it is preferable that the terminal portion is displaced from the fixed portion to the inside of the lens driving device when viewed from the optical axis direction. If comprised in this way, even if it is a case where the deviation | shift amount of the terminal part with respect to a fixing | fixed part becomes large, it becomes possible to prevent that a terminal part protrudes to the outer peripheral side of a lens drive device. Therefore, it becomes easy to prevent damage to the terminal portion when the lens driving device is attached to the host device.

  In the present invention, for example, the fixed portion is fixed to the holding member so as to be substantially parallel to the optical axis direction, the terminal portion is formed in a flat plate shape, and the terminal portion and the fixed portion are substantially parallel.

  In the present invention, the arrangement hole is preferably filled with an adhesive. With this configuration, even if the width of the arrangement hole in the thickness direction of the fixing portion is equal to or greater than the longest distance between the outer surface of the terminal portion and the outer surface of the fixing portion in the thickness direction of the fixing portion, It becomes possible to prevent dust from entering the inside of the drive device. In the present invention, the width of the arrangement hole in the thickness direction of the fixed portion is equal to or longer than the longest distance between the outer surface of the terminal portion and the outer surface of the fixed portion in the thickness direction of the fixed portion. Even in a state where a part of the terminal is arranged, it is possible to fill the arrangement hole with an adhesive having a relatively high viscosity.

  In this invention, it is preferable that the removal part which is the trace from which the connection member which connects a pair of feed terminals was removed is formed in the feed terminal. That is, it is preferable that the pair of power feeding terminals before assembly is integrated by the connection member. If comprised in this way, the handling of the terminal for electric power feeding at the time of an assembly will become easy compared with the case where a pair of electric power feeding terminal before an assembly is a different body.

  In the present invention, the lens driving device includes a leaf spring that connects the movable body and the fixed body, and is formed so that the shape when viewed from the optical axis direction is a substantially square shape. The leaf springs are electrically connected to each other. It is constituted by a plurality of separated spring pieces, each of both end portions of the drive coil is electrically connected to a different spring piece of the plurality of spring pieces, and the power supply terminal is each of both end portions of the drive coil. A soldering part that is fixed by soldering to a spring piece that is electrically connected, and the pair of power supply terminals are soldered to both corners of one side of the lens driving device when viewed from the optical axis direction Are arranged symmetrically so that the terminal portion is arranged on the center side of one side of the lens driving device, and the holding member is formed in a substantially rectangular frame shape when viewed from the optical axis direction. Outer peripheral wall is formed, the outer peripheral wall is fixed 1st outer peripheral wall part arrange | positioned rather than the outer peripheral side rather than a fixed part, and the 2nd outer peripheral wall part substantially orthogonal to a 1st outer peripheral wall part, The vicinity of a soldering part of a 2nd outer peripheral wall part It is preferable that a notch is formed.

  With this configuration, when the soldering part of the power supply terminal fixed by soldering to the spring piece to which both ends of the driving coil are electrically connected is viewed from the optical axis direction, the lens is driven. Soldering parts and spring pieces are soldered at the two adjacent corners of the four corners of the lens drive device away from the arm part of the leaf spring and the movable body because it is arranged at both corners of the device. And can be fixed. Therefore, even if the soldering work between the soldering part and the spring piece is not performed very carefully, the arm part of the leaf spring and the movable body are soldered together to the connection part between the soldering part and the spring piece. It becomes possible to prevent. In addition, since it becomes possible to solder and fix the soldering portion and the spring piece at two adjacent corners of the four corners of the lens driving device away from the arm portion of the leaf spring and the movable body, It is possible to increase the soldering area between the attaching portion and the spring piece. As a result, it is possible to easily solder the leaf spring and the power supply terminal.

  Further, with this configuration, since the notch is formed in the vicinity of the soldering portion of the second outer peripheral wall, the soldering portion and the spring piece are soldered using this notch. It is possible to easily bring the soldering iron close to the part to be attached. Therefore, it is possible to more easily solder the leaf spring and the power supply terminal.

  In the present invention, the holding member is formed with a press-fit portion in which the fixing portion is press-fitted and fixed along the first outer peripheral wall portion, and the power supply terminal is pressurized when the fixing portion is press-fitted into the press-fit portion. It is preferable that the pressurizing part is formed between the soldering part and the terminal part. If comprised in this way, since it becomes possible to protect the fixing | fixed part press-fit in the press-fit part by the 1st outer peripheral wall part, it becomes possible to prevent a deformation | transformation of the fixing | fixed part after incorporating in a lens drive device. Become. Further, with this configuration, since the pressurizing part is formed between the soldering part and the terminal part, it is necessary to pressurize the soldering part and the terminal part when the fixing part is press-fitted into the press-fitting part. Disappear. Therefore, it is possible to prevent deformation of the soldering part and the terminal part when the fixing part is press-fitted into the press-fitting part. Moreover, since the pressurization part is formed between the soldering part and the terminal part, it becomes possible to press-fit the power feeding terminal evenly in the press-fitting part. Furthermore, with this configuration, it is possible to handle the power supply terminal by grasping the pressure unit, so that the lens is prevented from being deformed while preventing the soldering part and the terminal part of the power supply terminal from being assembled into the lens driving device. It becomes possible to easily handle the power supply terminal before being incorporated in the drive device.

  In this invention, it is preferable that the 2nd notch part is formed in the vicinity of the pressurization part of the 1st outer peripheral wall part. If comprised in this way, it will become possible to press-fit a pressurization part and press-fit a fixed part to a press-fit part, without being disturbed by the 1st perimeter wall part.

  In the present invention, the lens driving device includes a leaf spring that connects the movable body and the fixed body, and the leaf spring is configured by a plurality of spring pieces that are electrically separated from each other, and the spring piece is fixed to the movable body. A movable body fixing portion, a fixed body fixing portion fixed to the fixed body, and an arm portion connecting the movable body fixing portion and the fixed body fixing portion, and each of both ends of the driving coil includes a plurality of springs. The first power supply terminal that is electrically connected to a different spring piece among the pieces and is one of the pair of power supply terminals is electrically connected to both ends of the drive coil. The second power supply terminal, which is the other power supply terminal of the pair of power supply terminals, is electrically connected to the first spring piece that is one of the spring pieces. Is the other of the two spring pieces that are electrically connected. The holding member is electrically connected to the second spring piece, and the holding member is formed such that a restriction surface overlapping the arm portion of the first spring piece when viewed from the optical axis direction is substantially perpendicular to the optical axis direction. When viewed from the direction, the arm portion of the first spring piece and the second power supply terminal overlap each other, and the regulating surface is the first spring when viewed from the optical axis direction of the second power supply terminal in the optical axis direction. It is preferable that the first spring piece is disposed at a position closer to the arm portion than the portion overlapping the one arm portion.

  With this configuration, the first spring piece and the second power supply terminal are arranged so that the arm part of the first spring piece and the second power supply terminal overlap when viewed from the optical axis direction. It is possible to reduce the size of the lens driving device in the direction orthogonal to the direction. Also, with this configuration, the restriction surface that overlaps the arm portion of the first spring piece when viewed from the optical axis direction is the first when viewed from the optical axis direction of the second feeding terminal in the optical axis direction. The arm of the first spring piece that overlaps with the second power supply terminal when viewed from the optical axis direction because it is disposed closer to the arm part of the first spring piece than the part that overlaps the arm part of the spring piece. Even if the portion is greatly bent, it is possible to prevent the arm portion of the first spring piece and the second power supply terminal from coming into contact with each other due to the restriction surface. Therefore, even if the lens driving device is downsized in the direction orthogonal to the optical axis direction, it is possible to prevent a short circuit between the first spring piece and the second power feeding terminal.

  As described above, in the present invention, even if the position of the terminal portion of the power feeding terminal connected to the external device for supplying current to the driving coil is changed by a host device such as a camera on which the lens driving device is mounted. Therefore, it is possible to eliminate the need to design and manufacture the holding member that holds the power supply terminal for each host device.

It is a perspective view of the lens drive device concerning an embodiment of the invention. It is sectional drawing of the EE cross section of FIG. It is a disassembled perspective view of the lens drive device shown in FIG. FIG. 4 is a perspective view of an assembled state of a base member, a power supply terminal, and a spring piece shown in FIG. 3. FIG. 4 is a plan view of an assembled state of a base member, a power supply terminal, and a spring piece shown in FIG. 3. It is a top view of the base member shown in FIG. It is a perspective view of the electric power feeding terminal shown in FIG. (A) is a front view of the power feeding terminal shown in FIG. 3, and (B) is an enlarged view showing a connecting portion between the power feeding terminal and the connecting member from the F direction of (A). It is sectional drawing of the base member in the GG cross section of FIG. 5, and an electric power feeding terminal.

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

(Schematic configuration of lens driving device)
FIG. 1 is a perspective view of a lens driving device 1 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line EE of FIG. FIG. 3 is an exploded perspective view of the lens driving device 1 shown in FIG. In the following description, as shown in FIG. 1 and the like, the three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction. The X direction is the left-right direction, the Y direction is the front-rear direction, and the Z direction is the up-down direction. Also, the X1 direction side is the “right” side, the X2 direction side is the “left” side, the Y1 direction side is the “front” side, the Y2 direction side is the “rear (back)” side, the Z1 direction side is the “upper” side, The Z2 direction side is the “lower” side.

  The lens driving device 1 of this embodiment is mounted on a relatively small camera used in a mobile phone, a drive recorder, a surveillance camera system, or the like, and is formed in a substantially quadrangular prism shape as a whole as shown in FIG. Has been. Specifically, the lens driving device 1 is formed so that the shape of the lens for photographing when viewed from the direction of the optical axis L (optical axis direction) is a substantially square shape. The four side surfaces of the lens driving device 1 are substantially parallel to the left-right direction or the front-rear direction.

  In this embodiment, the Z direction (vertical direction) is substantially coincident with the optical axis direction. In addition, in a camera equipped with the lens driving device 1 of the present embodiment, an imaging element (not shown) is arranged on the lower side, and a subject arranged on the upper side is photographed. That is, in this embodiment, the upper side (Z1 direction side) is the subject side (object side), and the lower side (Z2 direction side) is the anti-subject side (imaging element side, image side).

  As shown in FIGS. 1 and 2, the lens driving device 1 includes a movable body 2 that holds a photographing lens and is movable in the optical axis direction, and a fixed body that holds the movable body 2 so as to be movable in the optical axis direction. 3 and a drive mechanism 4 for driving the movable body 2 in the optical axis direction. Moreover, the lens drive device 1 includes leaf springs 5 and 6 that connect the movable body 2 and the fixed body 3 as shown in FIGS. That is, the movable body 2 is movably held by the fixed body 3 via the leaf springs 5 and 6. In this embodiment, the leaf spring 5 is disposed on the upper end side of the movable body 2, and the leaf spring 6 is disposed on the lower end side of the movable body 2.

  The movable body 2 includes a sleeve 8 that holds a lens holder 7 to which a plurality of lenses are fixed. The fixed body 3 includes a cover member 10 that constitutes the upper end portion of the side surface of the lens driving device 1, a base member 11 that constitutes the lower end portion of the side surface of the lens driving device 1 and the lower end surface of the lens driving device 1, and a plate And a spacer 12 to which a part of the spring 5 is fixed. A pair of power supply terminals 13 and 14 for supplying a current to a drive coil 20 (described later) that constitutes the drive mechanism 4 are fixed to the base member 11. In addition, illustration of the lens holder 7 is abbreviate | omitted in FIG.

  The lens holder 7 is formed in a substantially cylindrical shape. A plurality of lenses are fixed on the inner peripheral side of the lens holder 7. The sleeve 8 is formed of, for example, a resin material and has a substantially cylindrical shape. Specifically, the sleeve 8 has a substantially cylindrical shape in which the shape of the inner peripheral surface when viewed from the optical axis direction is substantially circular, and the shape of the outer peripheral surface when viewed from the optical axis direction is substantially rectangular. Is formed. The sleeve 8 holds the lens holder 7 on its inner peripheral side. At the lower end of the sleeve 8, a protrusion 8 a that contacts a reference surface 11 c described later formed on the base member 11 and determines the reference position of the movable body 2 in the optical axis direction is formed so as to protrude downward. Yes. The protrusions 8a are formed at four locations with a 90 ° pitch.

  The cover member 10 is made of a magnetic metal material. Moreover, the cover member 10 is formed in the substantially square cylinder shape with the bottom which has the bottom part 10a and the cylinder part 10b. A through hole 10c is formed at the center of the bottom 10a disposed on the upper side. The cover member 10 covers the outer peripheral side of the movable body 2 and the drive mechanism 4.

  The base member 11 is formed of an insulating resin material. The base member 11 is formed in a block shape having a substantially square shape when viewed from the optical axis direction. The base member 11 is attached to the lower end side of the cover member 10. A detailed configuration of the base member 11 will be described later.

  The spacer 12 is formed of, for example, a resin material and is formed in a substantially square flat block shape. The spacer 12 is formed in a frame shape, and a through hole is formed at the center thereof. The spacer 12 is fixed to the lower surface of the bottom 10 a of the cover member 10.

  The leaf spring 5 connects the annular movable body fixing portion fixed to the upper end side of the sleeve 8, the four fixed body fixing portions fixed to the spacer 12, and the movable body fixing portion and the fixed body fixing portion. 4 arms. The leaf spring 5 is fixed to the sleeve 8 and the spacer 12 so that the thickness direction and the vertical direction substantially coincide with each other.

  The leaf spring 6 is composed of two spring pieces 15 and 16 that are electrically separated from each other. The spring pieces 15 and 16 are made of a conductive metal material. The power supply terminals 13 and 14 are made of a conductive metal material. Detailed configurations of the leaf spring 6 and the power supply terminals 13 and 14 will be described later.

  The drive mechanism 4 includes two drive coils 20 wound around the outer periphery of the sleeve 8 and drive magnets 21 arranged along each of the four side surfaces of the lens drive device 1. The two drive coils 20 are wound around the outer peripheral surface of the sleeve 8 with a predetermined interval in the optical axis direction. In this embodiment, two conductive coils 20 are formed by winding a single conducting wire around the outer peripheral surface of the sleeve 8. The drive magnet 21 is formed in a substantially rectangular plate shape. The driving magnet 21 is fixed to the inner side surface of the cylindrical portion 10 b of the cover member 10 so as to face the outer peripheral surface of the driving coil 20. The cover member 10 of this embodiment fulfills the function of a yoke for forming a magnetic circuit.

(Configuration of base member, leaf spring and power supply terminal)
FIG. 4 is a perspective view of the assembled state of the base member 11, the power supply terminals 13, 14 and the spring pieces 15, 16 shown in FIG. 5 is a plan view of the assembled state of the base member 11, the power supply terminals 13, 14 and the spring pieces 15, 16 shown in FIG. FIG. 6 is a plan view of the base member 11 shown in FIG. FIG. 7 is a perspective view of the power supply terminals 13 and 14 shown in FIG. 8A is a front view of the power supply terminals 13 and 14 shown in FIG. 3, and FIG. 8B shows a connection portion between the power supply terminal 13 and the connection member 25 from the direction F in FIG. 8A. It is an enlarged view shown. FIG. 9 is a cross-sectional view of the base member 11 and the power supply terminal 13 in the GG cross section of FIG.

  As described above, the base member 11 is formed in a block shape having a substantially square shape when viewed from the optical axis direction. A through hole 11 a is formed at the center of the base member 11. At the four corners of the upper surface of the base member 11, spring fixing surfaces 11b to which fixed body fixing portions 15b and 16b described later constituting the spring pieces 15 and 16 are fixed are formed (see FIG. 6). Further, a reference surface 11 c for determining a reference position of the movable body 2 in the optical axis direction is formed on the upper surface of the base member 11. An outer peripheral wall 11 d that rises upward is formed on the outer peripheral portion of the base member 11. Further, the base member 11 is formed with two press-fit portions 11e to which the power supply terminals 13 and 14 are press-fitted and fixed (see FIG. 6). The base member 11 of this embodiment is a holding member that holds the power supply terminals 13 and 14.

  The spring fixing surface 11b is formed in a planar shape orthogonal to the optical axis direction. On the spring fixing surface 11b, there are formed protrusions 11f for positioning and fixing fixed body fixing portions 15b and 16b described later. The protrusion 11f is formed in a substantially cylindrical shape and protrudes upward from the spring fixing surface 11b. The protrusions 11 f are arranged at positions slightly shifted from the four corners of the base member 11. Specifically, as shown in FIG. 6, the protrusion 11f disposed on the right front side is disposed at a position shifted to the left side from the right front corner of the base member 11, and the protrusion 11f disposed on the left front side is the base. The protrusion 11f arranged at a position shifted to the right side from the left front corner of the member 11 is arranged at a position shifted to the left side from the right rear corner of the base member 11 and arranged at the left rear side. The protrusion 11 f to be formed is disposed at a position shifted from the left rear corner of the base member 11 to the right side.

  The reference surface 11c is formed in a planar shape orthogonal to the optical axis direction. Further, the reference surface 11c is formed at four positions on both the left and right ends of the upper surface of the base member 11 and the front and rear ends. The reference surfaces 11c formed at both ends in the left-right direction are formed at substantially center positions in the front-rear direction, and the reference surfaces 11c formed at both ends in the front-rear direction are formed at approximately center positions in the left-right direction. In this embodiment, when the lower end surface of the protruding portion 8a of the sleeve 8 is in contact with the reference surface 11c, the movable body 2 is at the reference position in the optical axis direction. In this embodiment, when the current is not supplied to the driving coil 20, the sleeve 8 and the spacer are in a state in which the leaf spring 5 is bent so that the lower end surface of the protrusion 8 a contacts the reference surface 11 c. 12 is fixed.

  The outer peripheral wall 11d is formed so as to have a substantially square frame shape when viewed from the optical axis direction. As illustrated in FIG. 2, the outer peripheral wall 11 d is disposed on the inner peripheral side of the lower end side portion of the cover member 10. In addition, the outer peripheral wall 11d includes two outer peripheral wall portions 11g parallel to the ZX plane formed by the Z direction and the X direction, and two outer peripheral portions parallel to the YZ plane formed by the Y direction and the Z direction. It is comprised from the wall part 11h.

  On the front end side of the outer peripheral wall portion 11h, a notch portion 11j is formed in which a part of the outer peripheral wall portion 11h is cut out in a predetermined range in the front-rear direction. The cutout portion 11j is formed in a predetermined range from the front end of the outer peripheral wall portion 11h toward the rear side. On the rear end side of the outer peripheral wall portion 11h, a notch portion 11k in which a part of the outer peripheral wall portion 11h is cut out in a predetermined range in the front-rear direction is formed. The cutout portion 11k is formed in a predetermined range from the rear end of the outer peripheral wall portion 11h toward the front side. The notches 11j and 11k are formed such that their bottom surfaces are arranged at the same height or lower side than the spring fixing surface 11b. Further, in the front-rear direction, the range where the notch 11j is formed is wider than the range where the notch 11k is formed.

  The outer peripheral wall portion 11g arranged on the front side is formed with two cutout portions 11m in which a part of the outer peripheral wall portion 11g is cut out in a predetermined range in the left-right direction. The notch portion 11m is formed in a predetermined range from the position shifted inward in the left-right direction from the left and right ends of the outer peripheral wall portion 11g arranged on the front side toward the inner side in the left-right direction. The notch 11m is formed such that its bottom surface is disposed above the spring fixing surface 11b.

  The two press-fit portions 11e are formed on the rear side of the outer peripheral wall portion 11g so as to follow the outer peripheral wall portion 11g arranged on the front side. Further, the two press-fitting portions 11e are formed symmetrically with respect to the YZ plane that passes through the optical axis L. The press-fit portion 11e is configured by a concave portion that is recessed below the spring fixing surface 11b, and is formed in a thin groove shape. In this embodiment, the rear surface of the outer peripheral wall portion 11g disposed on the front side is the front side surface of the press-fit portion 11e.

  Inside the press-fit portion 11e in the left-right direction, an arrangement hole 11p (see FIG. 6) in which a part of the power supply terminals 13 and 14 is arranged is formed so as to penetrate in the optical axis direction. The shape of the arrangement hole 11p when viewed from the optical axis direction is a rectangular shape whose longitudinal direction is the left-right direction. The two arrangement holes 11p are formed in a state where a predetermined interval is left in the left-right direction. As shown in FIG. 6, the reference surface 11c formed on the front end side of the base member 11 passes between the two arrangement holes 11p when viewed from the optical axis direction, and is an outer periphery arranged on the front side. It is formed to extend to the wall 11g.

  The spring piece 15 includes a movable body fixing portion 15a fixed to the lower end side of the sleeve 8, two fixed body fixing portions 15b fixed to the base member 11, a movable body fixing portion 15a, and a fixed body fixing portion 15b. Are provided with two arm portions 15c. Similarly, the spring piece 16 includes a movable body fixing portion 16a fixed to the lower end side of the sleeve 8, two fixed body fixing portions 16b fixed to the base member 11, and the movable body fixing portion 16a and the fixed body fixing. Two arm portions 16c that connect the portion 16b are provided. The spring pieces 15 and 16 include connection portions 15d and 16d to which the power supply terminals 13 and 14 are soldered and electrically connected. The spring pieces 15 and 16 are fixed to the sleeve 8 and the base member 11 so that the thickness direction and the optical axis direction substantially coincide with each other. That is, the spring pieces 15 and 16 are arranged in parallel to the XY plane formed from the X direction and the Y direction.

  The movable body fixing portions 15a and 16a are formed in a substantially arc shape. Coil connecting portions 15e and 16e to which both ends of the driving coil 20 are connected are formed in the movable body fixing portions 15a and 16a. One end side of the driving coil 20 is soldered and electrically connected to the coil connecting portion 15e, and the other end side of the driving coil 20 is soldered and electrically connected to the coil connecting portion 16e. ing.

  Fixed body fixing | fixed part 15b, 16b is mounted in the spring fixing surface 11b. The fixed body fixing portions 15b and 16b are formed with insertion holes through which the protrusions 11f are inserted. The fixed body fixing portions 15b and 16b are fixed to the spring fixing surface 11b by adhesion by applying an adhesive to the protrusion 11f or by welding using the protrusion 11f. The arm portions 15c and 16c are formed so that desired spring characteristics of the spring pieces 15 and 16 can be obtained. Specifically, the arm portions 15c and 16c are elongated and are gently curved.

  The connecting portion 15d is formed in a substantially rectangular shape. The connecting portion 15 d is formed so as to be connected to the left side of the fixed body fixing portion 15 b fixed to the spring fixing surface 11 b on the left front side, and is arranged at the left front corner of the base member 11. As shown in FIG. 5, an arm portion 15c is connected to the fixed body fixing portion 15b fixed to the spring fixing surface 11b on the left front side from the right rear side, and the arm portion 15c extends substantially rearward. Yes.

  The connecting portion 16d is formed in a substantially rectangular shape. The connecting portion 16 d is formed so as to be connected to the right side of the fixed body fixing portion 16 b fixed to the spring fixing surface 11 b on the right front side, and is disposed at the right front corner of the base member 11. As shown in FIG. 5, an arm portion 16c is connected to the fixed body fixing portion 16b fixed to the spring fixing surface 11b on the right front side from the rear side, and the arm portion 16c extends substantially in the left direction. .

  As shown in FIG. 7, the power supply terminals 13 and 14 are formed by bending a metal flat plate into a predetermined shape. The power supply terminals 13 and 14 are formed symmetrically with each other. The power supply terminals 13 and 14 are soldered portions 13a and 14a to which the spring pieces 15 and 16 are soldered and fixed, and an external for supplying current to the driving coil 20 from the outside such as an external connector or an external substrate. Terminal portions 13b and 14b connected to a device (not shown), fixing portions 13c and 14c fixed by being press-fitted into the press-fitting portion 11e of the base member 11, and when the fixing portions 13c and 14c are press-fitted into the press-fitting portion 11e And pressurizing sections 13d and 14d that are pressurized.

  The fixing portions 13c and 14c are formed in an elongated, substantially rectangular flat plate shape. The soldering portions 13a and 14a are formed in a substantially square flat plate shape. The soldering portions 13a and 14a project from one end side in the longitudinal direction of the fixing portions 13c and 14c to one side in a direction perpendicular to the longitudinal direction of the fixing portions 13c and 14c, and are on the same plane as the fixing portions 13c and 14c. Is arranged. The pressurizing portions 13d and 14d are formed in a substantially trapezoidal flat plate shape. The pressurizing portions 13d and 14d protrude from the substantially central position in the longitudinal direction of the fixing portions 13c and 14c to one of the directions orthogonal to the longitudinal direction of the fixing portions 13c and 14c, and are flush with the fixing portions 13c and 14c. Is arranged.

  The terminal portions 13b and 14b are formed in a substantially rectangular flat plate shape. The terminal portions 13b and 14b are arranged at positions shifted from the fixing portions 13c and 14c in the thickness direction of the fixing portions 13c and 14c when viewed from the optical axis direction. 13c and 14c are connected by connecting portions 13e and 14e. The connecting portions 13e and 14e protrude from the other end side in the longitudinal direction of the fixing portions 13c and 14c to the other side in the direction orthogonal to the longitudinal direction of the fixing portions 13c and 14c, and are inclined with respect to the fixing portions 13c and 14c. Yes. The terminal portions 13b and 14b are substantially parallel to the fixing portions 13c and 14c.

  The power supply terminals 13 and 14 are fixed to the base member 11 by fixing the fixing portions 13c and 14c into the two press-fitting portions 11e. Specifically, the fixing portions 13c, 14c and the ZX plane are substantially parallel (that is, the thickness direction of the fixing portions 13c, 14c is substantially coincident with the front-rear direction), and the outer side in the left-right direction. The fixing portions 13c and 14c are press-fitted and fixed to the press-fitting portion 11e so that the soldering portions 13a and 14a are arranged on the inner side and the terminal portions 13b and 14b are arranged on the inner side in the left-right direction. 14 is arranged symmetrically with respect to the YZ plane passing through the optical axis L. That is, when viewed from above and below, the power supply terminals 13 and 14 are provided with soldering portions 13 a and 14 a on both corners of the front side of the lens driving device 1, and on the center side of the front side of the lens driving device 1. It arrange | positions symmetrically so that the terminal parts 13b and 14b may be arrange | positioned.

  The power supply terminals 13 and 14 are fixed to the base member 11 so that the soldering portions 13a and 14a and the pressurizing portions 13d and 14d are disposed on the upper side, and the terminal portions 13b and 14b are disposed on the lower side. Yes. Further, the power supply terminals 13 and 14 are arranged so that the terminal portions 13b and 14b are arranged behind the fixed portions 13c and 14c (that is, arranged inside the lens driving device 1). It is fixed to.

  In this embodiment, as shown in FIG. 9, the width W1 of the arrangement hole 11p in the front-rear direction (that is, the thickness direction of the fixing portions 13c, 14c) is the outer surface (ie, the front surface) of the fixing portions 13c, 14c in the front-back direction. And the distance W2 between the outer side surfaces (that is, the rear surfaces) of the terminal portions 13b and 14b in the front-rear direction. The upper ends of the connecting portions 13e and 14e and the terminal portions 13b and 14b are arranged in the arrangement hole 11p. Further, the lower ends of the terminal portions 13b and 14b are exposed to the outside on the front side of the lens driving device 1, as shown in FIG. As shown in FIG. 9, a relatively large gap is formed between the rear side surface of the arrangement hole 11p and the upper end side portions of the terminal portions 13b and 14b. The placement hole 11p is filled with an adhesive for preventing dust from entering the lens driving device 1.

  The soldering portion 13 a is disposed at the left front corner of the base member 11. The connecting portion 15d is fixed by soldering to the lower end side of the rear surface of the soldering portion 13a in a state where the front end of the connecting portion 15d of the spring piece 15 is in contact with or slightly spaced. . The soldering portion 14 a is disposed at the right front corner of the base member 11. The connecting portion 16d is soldered and fixed to the lower end side of the rear surface of the soldering portion 14a in a state where the front end of the connecting portion 16d of the spring piece 16 is in contact with or slightly spaced. . Since the soldering portions 13a and 14a are arranged in parallel with the ZX plane and the connection portions 15d and 16d are arranged in parallel with the XY plane, the soldering portions 13a and 14a and the connection portions 15d and 16d are arranged. The angle formed is substantially a right angle.

  As described above, the notch portion 11j is formed on the front end side of the outer peripheral wall portion 11h. That is, the notch portion 11j is formed in the vicinity of the connection portion between the soldering portion 13a and the connection portion 15d and the connection portion between the soldering portion 14a and the connection portion 16d. In this embodiment, the soldering operation between the soldering portion 13a and the connection portion 15d and the soldering operation between the soldering portion 14a and the connection portion 16d are performed using the notch portion 11j. In this embodiment, the bonding work or welding work of the fixed body fixing portions 15b and 16b to the spring fixing surface 11b is performed using the notches 11j and 11k.

  The pair of power supply terminals 13 and 14 before being fixed to the base member 11 are connected by a connecting member 25 as shown by a two-dot chain line in FIG. In this embodiment, after pinching the connection member 25 and inserting the fixing portions 13c and 14c into the press-fitting portion 11e from above, the connection member 25 is bent a plurality of times at the boundary portion between the power supply terminals 13 and 14 and the connection member 25, The connecting member 25 is removed. When the fixing portions 13c and 14c are inserted into the press-fit portion 11e, the terminal portions 13b and 14b are inserted into the arrangement hole 11p from above. Thereafter, the upper ends of the pressurizing parts 13d and 14d are pressurized from above, and the fixing parts 13c and 14c are press-fitted into the press-fitting part 11e.

  Further, after the fixing portions 13c and 14c are press-fitted into the press-fitting portion 11e, the placement hole 11p is filled with an adhesive from above. As shown in FIG. 6, a recess 11r that is recessed downward from the upper surface of the base member 11 is formed at the edge of the placement hole 11p. The placement hole 11p is filled with an adhesive by using the recess 11r. Is done. The recess 11r is formed so as to extend to the outside and the rear side of the arrangement hole 11p in the left-right direction.

  The power supply terminals 13 and 14 are formed with removal portions 13f and 14f that are traces of the connection member 25 being removed. The removal portions 13f and 14f are formed so as to protrude upward from the fixing portions 13c and 14c. Moreover, the removal parts 13f and 14f are formed inside the pressurization parts 13d and 14d in the left-right direction. As shown in FIG. 8B, a notch 25a for facilitating bending of the connection member 25 is formed at the boundary between the removal portion 13f and the connection member 25. Similarly, a notch for facilitating the bending of the connecting member 25 is also formed at the boundary between the removal portion 14f and the connecting member 25.

  The removal parts 13f and 14f are arranged at the same position as the notch part 11m of the outer peripheral wall part 11g arranged on the front side in the left-right direction. That is, a notch portion 11m is formed in the vicinity of the removal portions 13f and 14f of the outer peripheral wall portion 11g arranged on the front side. When the fixing portions 13c and 14c are inserted into the press-fit portion 11e and the connecting member 25 is bent, the notch portion 11m is used. As shown in FIG. 4, the front surfaces of the power supply terminals 13 and 14 excluding the lower ends of the terminal portions 13 b and 14 b exposed to the outside on the front side of the lens driving device 1 and the upper ends of the removal portions 13 f and 14 f are shown in FIG. 4. The outer peripheral wall portion 11g disposed on the front side is covered.

  As shown in FIG. 5, the portion of the arm portion 16c of the spring piece 16 close to the movable body fixing portion 16a is disposed above the terminal portion 13b and the connecting portion 13e of the power supply terminal 13, and is viewed from the optical axis direction. The portion of the arm portion 16c of the spring piece 16 that is close to the movable body fixing portion 16a overlaps the terminal portion 13b and the connecting portion 13e. Further, as described above, the reference surface 11c formed on the front end side of the base member 11 passes between the two arrangement holes 11p and is disposed on the front side when viewed from the optical axis direction. The arm portion 16 c of the spring piece 16 is disposed above the reference surface 11 c formed on the front end side of the base member 11. That is, when viewed from the optical axis direction, the reference surface 11c formed on the front end side of the base member 11 and the arm portion 16c overlap each other. The reference surface 11c is disposed above the terminal portion 13b and the connecting portion 13e.

  In this embodiment, the outer peripheral wall portion 11g disposed on the front side is a first outer peripheral wall portion substantially parallel to the fixing portions 13c and 14c, and the outer peripheral wall portion 11h is connected to the outer peripheral wall portion 11g which is the first outer peripheral wall portion. It is the 2nd outer peripheral wall part which crosses substantially orthogonally. Further, the notch 11m is a second notch. The power supply terminal 14 is a first power supply terminal, the power supply terminal 13 is a second power supply terminal, the spring piece 16 is a first spring piece, and the spring piece 15 is a second spring piece. The reference surface 11c formed on the front end side of the base member 11 is a restriction surface that overlaps with the arm portion 16c of the spring piece 16 that is the first spring piece when viewed from the optical axis direction.

(Main effects of this form)
As described above, in this embodiment, the terminal portions 13b and 14b of the power supply terminals 13 and 14 are displaced from the fixing portions 13c and 14c fixed to the base member 11 in the front-rear direction when viewed from the optical axis direction. It is arranged at the position. Therefore, in this embodiment, it is possible to change the relative positions of the terminal portions 13b and 14b with respect to the base member 11 in the front-rear direction by changing the shift amounts of the terminal portions 13b and 14b with respect to the fixing portions 13c and 14c.

  In this embodiment, the width W1 of the arrangement hole 11p in the front-rear direction is wider than the distance W2 between the outer surface of the fixing parts 13c, 14c and the outer surface of the terminal parts 13b, 14b in the front-rear direction. Even if the positions of the terminal portions 13b and 14b are changed depending on the camera on which the drive device 1 is mounted, the upper ends of the connecting portions 13e and 14e and the terminal portions 13b and 14b can be arranged in the arrangement hole 11p. . Therefore, in this embodiment, even if the positions of the terminal portions 13b and 14b change depending on the camera on which the lens driving device 1 is mounted, it is not necessary to design and manufacture the base member 11 that holds the power supply terminals 13 and 14 for each camera. It becomes possible.

  In this embodiment, when viewed from the optical axis direction, the terminal portions 13b and 14b are displaced to the inside of the lens driving device 1 from the fixed portions 13c and 14c. Therefore, even when the amount of displacement of the terminal portions 13b and 14b with respect to the fixing portions 13c and 14c is increased, it is possible to prevent the terminal portions 13b and 14b from projecting to the outer peripheral side of the lens driving device 1. . Therefore, in this embodiment, it is easy to prevent damage to the terminal portions 13b and 14b when the lens driving device 1 is attached to the camera.

  In addition, when the terminal portions 13b and 14b are shifted to the outside of the lens driving device 1 with respect to the fixing portions 13c and 14c, the soldering portions 13a and 14a disposed on the same plane as the fixing portions 13c and 14c and Since the fixing portions 13c and 14c are arranged on the inner side of the terminal portions 13b and 14b, the arrangement space of the spring pieces 15 and 16 is narrowed, and the degree of freedom in designing the spring pieces 15 and 16 is reduced. On the other hand, in this embodiment, since the soldering portions 13a and 14a and the fixing portions 13c and 14c are arranged outside the terminal portions 13b and 14b, it is possible to secure a space for arranging the spring pieces 15 and 16. As a result, the degree of freedom in designing the spring pieces 15 and 16 can be increased.

  In this embodiment, the arrangement hole 11p is filled with an adhesive for preventing dust from entering the lens driving device 1. Therefore, even if the width W1 of the arrangement hole 11p in the front-rear direction is larger than the distance W2 between the outer surface of the fixing parts 13c, 14c and the outer surface of the terminal parts 13b, 14b in the front-rear direction, lens driving from the arrangement hole 11p. It becomes possible to prevent dust from entering the inside of the device 1. In this embodiment, since a relatively large gap is formed between the rear side surface of the arrangement hole 11p and the upper end portion of the terminal portions 13b and 14b, the connection portions 13e and 14e and the terminal portions 13b and 14b Even in a state where the upper end side portion is arranged in the arrangement hole 11p, it is possible to fill the arrangement hole 11p with an adhesive having a relatively high viscosity.

  In this embodiment, the pair of power supply terminals 13 and 14 before being fixed to the base member 11 are connected by the connection member 25. Therefore, in this embodiment, handling of the power supply terminals 13 and 14 at the time of assembly is facilitated as compared with a case where the pair of power supply terminals 13 and 14 before assembly are separated.

  In this embodiment, the connection portion between the soldering portion 13a of the power supply terminal 13 and the connection portion 15d of the spring piece 15 is disposed at the left front corner of the base member 11, and is fixed to the spring fixing surface 11b on the left front side. It arrange | positions in the position away from the arm part 15c connected to the fixed body fixing | fixed part 15b. Further, the connection portion between the soldering portion 14a of the power supply terminal 14 and the connection portion 16d of the spring piece 16 is disposed at the right front corner of the base member 11, and is fixed to the spring fixing surface 11b on the right front side. It arrange | positions in the position away from the arm part 16c connected to the fixing | fixed part 16b. Further, the connecting portion between the soldering portion 13a and the connecting portion 15d and the connecting portion between the soldering portion 14a and the connecting portion 16d are arranged at positions away from the movable body 2.

  Therefore, the arm portions 15c and 16c and the movable body 2 can be added to the soldering portions 13a and 14a and the connection portions 15d and 16d without performing the soldering operation between the soldering portions 13a and 14a and the connection portions 15d and 16d so carefully. Are not likely to be soldered together. In this embodiment, the soldering portions 13a and 14a and the connection portions 15d and 16d are fixed by soldering at the two corners of the base member 11 away from the arm portions 15c and 16c and the movable body 2. The area of soldering between the soldering portions 13a and 14a and the connection portions 15d and 16d can be increased. Therefore, in this embodiment, it is possible to easily perform soldering between the power supply terminals 13 and 14 and the spring pieces 15 and 16.

  In this embodiment, since the notch portion 11j is formed in the vicinity of the connection portion between the soldering portion 13a and the connection portion 15d and in the vicinity of the connection portion between the soldering portion 14a and the connection portion 16d, When performing the soldering operation between the soldering portion 13a and the connection portion 15d and the soldering operation between the soldering portion 14a and the connection portion 16d, the notched portion 11j is used to connect the soldering portions 13a, 14a and It is possible to easily bring the soldering iron close to the connection portions with the connection portions 15d and 16d. Therefore, in this embodiment, it becomes possible to more easily solder the power supply terminals 13 and 14 and the spring pieces 15 and 16.

  In this embodiment, the fixing portions 13c and 14c are press-fitted and fixed to a press-fit portion 11e formed along the outer peripheral wall portion 11g arranged on the front side. In this embodiment, the front surface of the portion excluding the lower end side of the terminal portions 13b and 14b of the power supply terminals 13 and 14 and the upper end side of the removal portions 13f and 14f is covered with the outer peripheral wall portion 11g arranged on the front side. It is protected by this outer peripheral wall 11g. Therefore, in this embodiment, the power supply terminals 13 and 14 after being incorporated in the base member 11 are not easily deformed. In this embodiment, since the front surfaces of the soldering portions 13a and 14a are covered with the outer peripheral wall portion 11g arranged on the front side, the soldering portions 13a and 14a are formed on the lower end side of the cover member 10 formed of a metal material. Can be prevented from contacting.

  In this embodiment, pressurizing portions 13d and 14d that are pressurized when the fixing portions 13c and 14c are press-fitted into the press-fit portion 11e are formed on the power supply terminals 13 and 14, respectively. Therefore, it is not necessary to pressurize the soldering parts 13a and 14a when the fixing parts 13c and 14c are press-fitted into the press-fitting part 11e. Therefore, in this embodiment, it is possible to prevent deformation of the soldering portions 13a and 14a when the fixing portions 13c and 14c are press-fitted into the press-fit portion 11e. Further, in this embodiment, since the pressurizing parts 13d and 14d are formed between the soldering parts 13a and 14a and the terminal parts 13b and 14b, the fixing parts 13c and 14c are uniformly press-fitted into the press-fitting part 11e. Is possible. Therefore, in this embodiment, it is possible to equalize the press-fitting amounts of the fixing portions 13c and 14c in the left-right direction.

  In this embodiment, when viewed from the optical axis direction, a part of the arm portion 16 c of the spring piece 16 overlaps the terminal portion 13 b and the connecting portion 13 e of the power supply terminal 13 connected to the spring piece 15. Therefore, in this embodiment, when viewed from the optical axis direction, the lens drive is performed in the front-rear and left-right directions as compared with the case where a part of the arm portion 16c of the spring piece 16 is displaced from the terminal portion 13b and the connecting portion 13e. The apparatus 1 can be downsized. In this embodiment, when viewed from the optical axis direction, the arm portion 16c of the spring piece 16 overlaps the reference surface 11c formed on the front end side of the base member 11, and the reference surface 11c is the terminal portion 13b. Since the arm portion 16c is greatly bent downward, the terminal portion 13b and the connecting portion 13e are formed by the reference surface 11c formed on the front end side of the base member 11. It is possible to prevent contact between the arm portion 16c and the arm portion 16c. Therefore, in this embodiment, even if the lens driving device 1 is reduced in size in the front-rear and left-right directions, a short circuit between the spring piece 16 and the power supply terminal 13 can be prevented.

(Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.

  In the embodiment described above, the width W1 of the arrangement hole 11p in the front-rear direction is wider than the distance W2 between the outer surface of the fixing portions 13c, 14c in the front-rear direction and the outer surface of the terminal portions 13b, 14b in the front-rear direction. In addition, for example, the width W1 may be substantially equal to the distance W2. That is, the width W1 only needs to be greater than or equal to the distance W2. Even in this case, similarly to the above-described embodiment, even if the positions of the terminal portions 13b and 14b are changed by the camera on which the lens driving device 1 is mounted, the base member 11 that holds the power supply terminals 13 and 14 is attached to each camera. It is possible to eliminate the need for designing and manufacturing.

  In the embodiment described above, the upper ends of the connecting portions 13e and 14e and the terminal portions 13b and 14b are arranged in the arrangement hole 11p. In addition, for example, the fixing portions 13c and 14c may be arranged in the arrangement hole 11p. In this case, if the portions that become the connecting portions 13e and 14e of the power feeding terminals 13 and 14 are inserted into the arrangement holes 11p after the portions that become the connecting portions 13e and 14e and the terminal portions 13b and 14b are bent, It is also possible to make the width W1 of the arrangement hole 11p in the direction narrower than the distance W2 between the outer surface of the fixing portions 13c and 14c and the outer surface of the terminal portions 13b and 14b in the front-rear direction. However, if the width W1 is narrower than the distance W2, the assembling work of the lens driving device 1 becomes complicated. Further, when the width W1 is narrower than the distance W2, the arrangement positions of the connecting portions 13e and 14e and the terminal portions 13b and 14b are limited, so that the design flexibility of the power supply terminals 13 and 14 is reduced.

  In the embodiment described above, the terminal portions 13b and 14b are displaced to the inside of the lens driving device 1 from the fixed portions 13c and 14c when viewed from the optical axis direction. In addition, for example, the terminal portions 13b and 14b may be displaced to the outside of the lens driving device 1 (that is, to the front side) with respect to the fixed portions 13c and 14c when viewed from the optical axis direction. Moreover, in the form mentioned above, although the terminal parts 13b and 14b are substantially parallel to the fixing | fixed parts 13c and 14c, the terminal parts 13b and 14b may incline with respect to the fixing | fixed parts 13c and 14c. In this case, the width W1 of the arrangement hole 11p in the front-rear direction is equal to or longer than the longest distance between the outer surface of the fixing portions 13c, 14c and the outer surface of the terminal portions 13b, 14b in the front-rear direction.

  In the embodiment described above, the front surfaces of the power supply terminals 13 and 14 excluding the lower end side of the terminal portions 13b and 14b and the upper end side of the removal portions 13f and 14f are covered with the outer peripheral wall portion 11g arranged on the front side. ing. In addition to this, for example, the pressurizing parts 13d and 14d are arranged at the same position as the notch part 11m of the outer peripheral wall part 11g arranged on the front side in the left-right direction, and the front surfaces of the pressurizing parts 13d and 14d are The outer peripheral wall portion 11g disposed on the front side may not be covered. That is, a notch 11m is formed in the vicinity of the pressurizing portions 13d and 14d of the outer peripheral wall portion 11g disposed on the front side, and the front surface of the pressurizing portions 13d and 14d is disposed on the front side. It may not be covered with 11g. In this case, even if the press-fit portion 11e is formed along the outer peripheral wall portion 11g arranged on the front side, the pressurizing portions 13d and 14d are pressed and pressed without being obstructed by the outer peripheral wall portion 11g. It becomes possible to press-fit the fixing portions 13c and 14c into the portion 11e.

  In the embodiment described above, the soldering portions 13 a and 14 a and the pressurizing portions 13 d and 14 d are formed on the power supply terminals 13 and 14. In addition, for example, the number of soldering portions 13a and 14a and pressurizing portions 13d and 14d formed on the power supply terminals 13 and 14 may be two or more. In the above-described embodiment, the pressurizing parts 13d and 14d are formed between the soldering parts 13a and 14a and the terminal parts 13b and 14b. 14d may be formed. Further, in the embodiment described above, the pressurizing portions 13d and 14d are formed on the power feeding terminals 13 and 14, but the pressurizing portions 13d and 14d may not be formed on the power feeding terminals 13 and 14.

  In the embodiment described above, the soldering portions 13a and 14a of the power supply terminals 13 and 14 are arranged on the same plane as the fixing portions 13c and 14c. In addition to this, for example, similarly to the power supply terminal of the lens driving device described in Patent Document 1, the soldering portion 13a so that the shape of the power supply terminals 13 and 14 when viewed from the optical axis direction is substantially L-shaped. , 14a may be bent at substantially right angles to the fixing portions 13c, 14c. In the embodiment described above, the pair of power feeding terminals 13 and 14 before being fixed to the base member 11 are connected by the connecting member 25, but the pair of power feeding terminals 13 and 14 before assembly are separately provided. It may be. In this case, the removal portions 13 f and 14 f are not formed in the power supply terminals 13 and 14.

  In the embodiment described above, the leaf spring 6 is constituted by the two spring pieces 15 and 16. In addition, for example, the leaf spring 6 may be constituted by three or more spring pieces that are electrically separated from each other. In this case, both ends of the driving coil 20 are electrically connected to two different spring pieces among the three or more spring pieces.

  In the embodiment described above, the reference surface 11c formed on the front end side of the base member 11 and the arm portion 16c of the spring piece 16 overlap each other when viewed from the optical axis direction, but formed on the front end side of the base member 11. The reference surface 11c and the arm portion 16c to be used do not have to overlap each other. In the above-described embodiment, the reference surface 11c formed on the front end side of the base member 11 is a restriction surface that overlaps with the arm portion 16c when viewed from the optical axis direction, but is viewed from the optical axis direction. Sometimes, the restriction surface overlapping the arm portion 16c may be formed separately from the reference surface 11c.

  In the embodiment described above, the lens driving device 1 is formed so that the shape when viewed from the optical axis direction is a substantially square shape, but the lens driving device 1 has a shape when viewed from the optical axis direction. You may form so that it may become a substantially rectangular shape. The lens driving device 1 may be formed so that the shape when viewed from the optical axis direction is a polygonal shape such as a substantially hexagonal shape, or a substantially circular shape or a substantially elliptical shape. Also good.

DESCRIPTION OF SYMBOLS 1 Lens drive device 2 Movable body 3 Fixed body 4 Drive mechanism 6 Leaf spring 11 Base member (holding member)
11c Reference surface (regulatory surface)
11d outer peripheral wall 11e press-fit portion 11g outer peripheral wall portion (first outer peripheral wall portion)
11h outer peripheral wall (second outer peripheral wall)
11j notch 11m notch (second notch)
11p Arrangement hole 13 Feeding terminal (second feeding terminal)
14 Feeding terminal (first feeding terminal)
13a, 14a Soldering part 13b, 14b Terminal part 13c, 14c Fixing part 13d, 14d Pressure part 13f, 14f Removal part 15 Spring piece (second spring piece)
16 Spring piece (first spring piece)
15a, 16a Movable body fixing portion 15b, 16b Fixed body fixing portion 15c, 16c Arm portion 20 Driving coil 21 Driving magnet 25 Connection member L Optical axis W1 Width of arrangement hole W2 Outer surface of terminal portion and outer surface of fixing portion Distance to (maximum distance)
Y Fixed part thickness direction Z Optical axis direction

Claims (9)

A movable body that holds a lens and is movable in the optical axis direction of the lens, a fixed body that holds the movable body so as to be movable in the optical axis direction, a driving magnet, and a driving coil. And a pair of power supply terminals for supplying a current to the drive coil,
The fixed body includes a holding member that holds the power supply terminal,
The power supply terminal includes a flat plate-like fixing portion fixed to the holding member, and a terminal portion connected to an external device for supplying a current to the driving coil,
When viewed from the optical axis direction, the terminal portion is disposed at a position displaced from the fixed portion in the thickness direction of the fixed portion,
The holding member is formed so that an arrangement hole in which a part of the power supply terminal is arranged penetrates in the optical axis direction,
The lens drive characterized in that the width of the arrangement hole in the thickness direction of the fixed portion is equal to or greater than the longest distance between the outer surface of the terminal portion and the outer surface of the fixed portion in the thickness direction of the fixed portion. apparatus.   2. The lens driving device according to claim 1, wherein when viewed from the optical axis direction, the terminal portion is displaced from the fixed portion to the inside of the lens driving device. The fixing portion is fixed to the holding member so as to be substantially parallel to the optical axis direction,
The terminal portion is formed in a flat plate shape,
The lens driving device according to claim 1, wherein the terminal portion and the fixing portion are substantially parallel to each other.   The lens driving device according to claim 1, wherein the arrangement hole is filled with an adhesive.   5. The lens driving device according to claim 1, wherein a removal portion that is a trace of removal of a connection member that connects a pair of the power supply terminals is formed in the power supply terminal. A leaf spring connecting the movable body and the fixed body is provided, and the shape when viewed from the optical axis direction is formed to be a substantially square shape,
The leaf spring is composed of a plurality of spring pieces electrically separated from each other,
Each of the both ends of the driving coil is electrically connected to a different one of the plurality of spring pieces,
The power supply terminal includes a soldering portion that is soldered and fixed to the spring pieces to which both ends of the driving coil are electrically connected,
The pair of power supply terminals, when viewed from the optical axis direction, has the soldering portions disposed on both corners of one side of the lens driving device, and the terminals on the center side of one side of the lens driving device. So that the parts are placed symmetrically,
The holding member is formed with an outer peripheral wall formed in a substantially rectangular frame shape when viewed from the optical axis direction.
The outer peripheral wall includes a first outer peripheral wall portion that is disposed on the outer peripheral side of the fixed portion and is substantially parallel to the fixed portion, and a second outer peripheral wall portion that is substantially orthogonal to the first outer peripheral wall portion,
6. The lens driving device according to claim 1, wherein a notch portion is formed in the vicinity of the soldering portion of the second outer peripheral wall portion. The holding member is formed with a press-fit portion along which the fixed portion is press-fitted and fixed along the first outer peripheral wall portion.
The power supply terminal includes a pressurizing part that is pressurized when the fixing part is press-fitted into the press-fit part,
The lens driving device according to claim 6, wherein the pressing portion is formed between the soldering portion and the terminal portion.   The lens driving device according to claim 7, wherein a second cutout portion is formed in the vicinity of the pressurizing portion of the first outer peripheral wall portion. A leaf spring connecting the movable body and the fixed body;
The leaf spring is composed of a plurality of spring pieces electrically separated from each other,
The spring piece includes a movable body fixing portion fixed to the movable body, a fixed body fixing portion fixed to the fixed body, and an arm portion connecting the movable body fixing portion and the fixed body fixing portion. ,
Each of the both ends of the driving coil is electrically connected to a different one of the plurality of spring pieces,
The first power supply terminal which is one of the pair of power supply terminals is the one of the two spring pieces to which both ends of the drive coil are electrically connected. Electrically connected to the first spring piece,
The second power supply terminal, which is the other power supply terminal of the pair of power supply terminals, is the other of the two spring pieces to which the both ends of the drive coil are electrically connected. Electrically connected to the second spring piece,
The holding member is formed such that a restriction surface that overlaps with the arm portion of the first spring piece when viewed from the optical axis direction is substantially orthogonal to the optical axis direction,
When viewed from the optical axis direction, the arm portion of the first spring piece and the second power supply terminal overlap,
The regulating surface is formed in the first spring piece in the optical axis direction more than the portion of the second feeding terminal that overlaps the arm part of the first spring piece when viewed from the optical axis direction. The lens driving device according to claim 1, wherein the lens driving device is disposed at a position close to the arm portion.

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