JP7323622B2 - Lens driver and camera module - Google Patents

Lens driver and camera module Download PDF

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JP7323622B2
JP7323622B2 JP2021536603A JP2021536603A JP7323622B2 JP 7323622 B2 JP7323622 B2 JP 7323622B2 JP 2021536603 A JP2021536603 A JP 2021536603A JP 2021536603 A JP2021536603 A JP 2021536603A JP 7323622 B2 JP7323622 B2 JP 7323622B2
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magnetic field
field generating
magnet
fixed
side plate
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JPWO2021019820A1 (en
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潤 安藤
克彦 大下
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
Alps Alpine Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof

Description

本開示は、例えばカメラ付き携帯機器等に搭載されるレンズ駆動装置、及び、レンズ駆動装置を含むカメラモジュールに関する。 The present disclosure relates to a lens driving device mounted on, for example, a camera-equipped mobile device, and a camera module including the lens driving device.

従来、外筒部を含むヨークと、レンズホルダ（レンズ保持部材）と、レンズ保持部材の外周に配置されるコイルと、コイルに対向するように外筒部の内壁面に取り付けられた平板状の永久磁石とを含むレンズ駆動装置が知られている（特許文献１参照。）。このレンズ駆動装置は、組み立ての際に、磁性材料で形成された外筒部の内壁面に平板状の永久磁石を吸着させている。 Conventionally, a yoke including an outer cylinder, a lens holder (lens holding member), a coil arranged on the outer periphery of the lens holding member, and a flat plate-shaped unit mounted on the inner wall surface of the outer cylinder so as to face the coil. A lens driving device including a permanent magnet is known (see Patent Document 1). When this lens driving device is assembled, a flat plate-shaped permanent magnet is attracted to the inner wall surface of the outer cylindrical portion made of a magnetic material.

特開２０１２－８８４３２号公報JP 2012-88432 A

外筒部は、非磁性材料で形成される場合がある。非磁性材料で形成された外筒部は、例えば、複数のレンズ駆動装置を並べて配置する場合に採用される。一方のレンズ駆動装置における磁性材料で形成された外筒部と他方のレンズ駆動装置における永久磁石とが互いに影響を及ぼし合ってしまうのを防止するためである。 The outer cylinder may be made of a non-magnetic material. An outer cylinder made of a non-magnetic material is used, for example, when arranging a plurality of lens driving devices side by side. This is to prevent the outer cylindrical portion formed of a magnetic material in one lens driving device and the permanent magnet in the other lens driving device from influencing each other.

しかしながら、上述の永久磁石は、外筒部が非磁性材料で形成されている場合には、磁力が利用できないため、その外筒部に吸着できない。そのため、非磁性材料で形成された外筒部を含む上述の構成は、組み立てが困難になってしまうおそれがある。 However, if the outer cylinder is made of a non-magnetic material, the permanent magnet described above cannot be attracted to the outer cylinder because the magnetic force cannot be used. Therefore, there is a possibility that the above-described configuration including the outer cylindrical portion made of a non-magnetic material will be difficult to assemble.

そこで、非磁性材料で形成されたカバー部材に磁界発生部材を固定する際の組み立て性を高めることができるレンズ駆動装置を提供することが望まれる。 Therefore, it is desired to provide a lens driving device that can improve the assembling efficiency when fixing the magnetic field generating member to the cover member made of a non-magnetic material.

本発明の実施形態に係るレンズ駆動装置は、カバー部材を含む固定側部材と、前記カバー部材内に位置してレンズ体を保持可能なレンズ保持部材と、前記レンズ保持部材に保持されたコイルと、前記コイルに対向する磁界発生部材と、前記固定側部材に固定される固定側支持部と、前記レンズ保持部材に固定される可動側支持部と、前記固定側支持部と前記可動側支持部との間に設けられた弾性腕部とを有し、前記レンズ保持部材を光軸方向へ移動可能に支持する板ばねと、を備えたレンズ駆動装置において、前記カバー部材は、互いに対向する一対の側板部を含む外周壁部と天井部とを有するとともに、非磁性材料によって形成されており、前記固定側部材は、前記カバー部材に一部が当接して配置されるとともに、前記板ばねの前記固定側支持部が固定されるスペーサ部材を含み、前記スペーサ部材は、前記天井部と対向する枠状部と、前記枠状部から下方へ突出し前記側板部と対向する突出部とを有し、前記突出部は、前記磁界発生部材の延在方向に離間して二つ設けられており、前記磁界発生部材は、光軸方向と直交する方向に延在した形状をしており、前記磁界発生部材が二つの前記突出部と前記側板部との間に挟まれた状態で、前記側板部と前記磁界発生部材との間に設けられた接着剤によって、前記側板部に固定されている。
A lens driving device according to an embodiment of the present invention includes a stationary member including a cover member, a lens holding member positioned inside the cover member and capable of holding a lens body, and a coil held by the lens holding member. a magnetic field generating member facing the coil, a fixed side support portion fixed to the fixed side member, a movable side support portion fixed to the lens holding member, the fixed side support portion and the movable side support portion and a leaf spring that supports the lens holding member so as to be movable in the optical axis direction, wherein the cover members are arranged in a pair facing each other. The fixed side member has an outer peripheral wall portion including a side plate portion and a ceiling portion, and is made of a non-magnetic material. A spacer member to which the fixed side support portion is fixed is included, and the spacer member has a frame-shaped portion facing the ceiling portion, and a protruding portion protruding downward from the frame-shaped portion and facing the side plate portion. and the magnetic field generating member has a shape extending in a direction orthogonal to the optical axis direction, and the magnetic field generating member has a shape extending in a direction orthogonal to the optical axis direction. The generating member is sandwiched between the two projecting portions and the side plate portion and fixed to the side plate portion by an adhesive provided between the side plate portion and the magnetic field generating member .

上述の手段により、非磁性材料で形成されたカバー部材に磁界発生部材を固定する際の組み立て性を高めることができるレンズ駆動装置が提供される。 With the above-described means, a lens driving device is provided that can improve assembly efficiency when fixing the magnetic field generating member to the cover member made of a non-magnetic material.

レンズ駆動装置の分解斜視図である。It is an exploded perspective view of a lens drive. レンズ駆動装置の上方斜視図である。It is an upper perspective view of a lens drive. レンズ駆動装置の正面図である。It is a front view of a lens drive. レンズ駆動装置の上面図である。It is a top view of a lens drive. レンズ駆動装置の底面図である。It is a bottom view of a lens drive. カバー部材が省略された状態にあるレンズ駆動装置の上方斜視図である。FIG. 4 is an upper perspective view of the lens driving device with the cover member omitted; スペーサ部材及びカバー部材が省略された状態にあるレンズ駆動装置の上方斜視図である。FIG. 4 is an upper perspective view of the lens driving device with the spacer member and the cover member omitted; レンズ保持部材の上方斜視図である。It is an upper perspective view of a lens holding member. コイルが取り付けられたレンズ保持部材の上方斜視図である。FIG. 4 is a top perspective view of a lens holding member with coils attached; レンズ保持部材の下方斜視図である。It is a downward perspective view of a lens holding member. コイルが取り付けられたレンズ保持部材の下方斜視図である。FIG. 4 is a bottom perspective view of a lens holding member with coils attached; レンズ保持部材の上面図である。It is a top view of a lens holding member. コイルが取り付けられたレンズ保持部材の上面図である。FIG. 4 is a top view of a lens holding member with coils attached; レンズ保持部材の底面図である。It is a bottom view of a lens holding member. コイルが取り付けられたレンズ保持部材の底面図である。It is a bottom view of the lens holding member to which the coil was attached. レンズ保持部材の一部の拡大斜視図である。FIG. 4 is an enlarged perspective view of part of the lens holding member; レンズ保持部材の別の一部の拡大斜視図である。FIG. 11 is an enlarged perspective view of another portion of the lens holding member; 金属部材及びベース部材が取り外された状態にあるレンズ駆動装置の底面図である。It is a bottom view of the lens drive in the state where the metal member and the base member were removed. 金属部材、ベース部材、スペーサ部材、カバー部材、上側板ばね、及び下側板ばねが取り外された状態にあるレンズ駆動装置の底面図である。FIG. 4 is a bottom view of the lens driving device with the metal member, base member, spacer member, cover member, upper leaf spring, and lower leaf spring removed; 上側板ばねの上面図である。FIG. 4 is a top view of the upper leaf spring; 下側板ばねの上面図である。FIG. 4 is a top view of the lower leaf spring; レンズ駆動装置における下側板ばねとコイルとの接続構造の底面図である。It is a bottom view of the connection structure of a lower side leaf|plate spring and a coil in a lens drive device. レンズ駆動装置における下側板ばねとコイルとの接続構造の側面図である。FIG. 4 is a side view of a connection structure between a lower leaf spring and a coil in the lens driving device; レンズ駆動装置のベース部材の分解斜視図及び完成斜視図である。FIG. 4 is an exploded perspective view and a completed perspective view of the base member of the lens driving device; カバー部材の斜視図である。It is a perspective view of a cover member. スペーサ部材の斜視図である。FIG. 4 is a perspective view of a spacer member; スペーサ部材が嵌め込まれたカバー部材の斜視図である。FIG. 10 is a perspective view of a cover member in which a spacer member is fitted; 上側板ばねが嵌め込まれたカバー部材の斜視図である。FIG. 10 is a perspective view of a cover member in which an upper leaf spring is fitted; 第２上側磁石が嵌め込まれたカバー部材の斜視図である。FIG. 4 is a perspective view of a cover member in which a second upper magnet is fitted; 第２下側磁石が嵌め込まれたカバー部材の斜視図である。FIG. 4 is a perspective view of a cover member in which a second lower magnet is fitted; スペーサ部材における突出部の斜視図である。FIG. 10 is a perspective view of a protrusion in the spacer member; スペーサ部材における突出部の斜視図である。FIG. 10 is a perspective view of a protrusion in the spacer member; スペーサ部材の第２突出部の側面図である。FIG. 10 is a side view of a second protrusion of the spacer member; 第２突出部及び上側板ばねの側面図である。FIG. 10 is a side view of the second protrusion and the upper leaf spring; 第２突出部、上側板ばね、及び第２上側磁石の側面図である。FIG. 11 is a side view of the second protrusion, the upper leaf spring, and the second upper magnet; 第２突出部、上側板ばね、第２上側磁石、及び第２下側磁石の側面図である。FIG. 11 is a side view of the second protrusion, the upper leaf spring, the second upper magnet, and the second lower magnet; 上部組立体の底面図である。Fig. 10 is a bottom view of the upper assembly; 上部組立体の底面の要部拡大図である。FIG. 4 is an enlarged view of the main part of the bottom surface of the upper assembly;

以下、本発明の実施形態に係るレンズ駆動装置１０１について図面を参照して説明する。図１は、レンズ駆動装置１０１の分解斜視図である。図２Ａは、レンズ駆動装置１０１の上方斜視図であり、図２Ｂは、Ｙ２側から見たレンズ駆動装置１０１の正面図である。図３Ａは、レンズ駆動装置１０１の上面図であり、図３Ｂは、レンズ駆動装置１０１の底面図である。図４Ａは、カバー部材４を取り外した状態のレンズ駆動装置１０１の上方斜視図であり、図４Ｂは、スペーサ部材１及びカバー部材４を取り外した状態のレンズ駆動装置１０１の上方斜視図である。図４Ａ及び図４Ｂは何れも図２Ａに対応している。 A lens driving device 101 according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the lens driving device 101. FIG. 2A is an upper perspective view of the lens driving device 101, and FIG. 2B is a front view of the lens driving device 101 as seen from the Y2 side. 3A is a top view of the lens driving device 101, and FIG. 3B is a bottom view of the lens driving device 101. FIG. 4A is an upper perspective view of the lens driving device 101 with the cover member 4 removed, and FIG. 4B is an upper perspective view of the lens driving device 101 with the spacer member 1 and the cover member 4 removed. Both FIGS. 4A and 4B correspond to FIG. 2A.

レンズ駆動装置１０１は、図１に示すように、レンズ体（図示せず。）を保持可能なレンズ保持部材２と、レンズ保持部材２をレンズ体に関する光軸方向（例えばＺ軸方向）に沿って移動させる駆動機構ＭＫと、レンズ保持部材２を光軸方向に移動可能に支持する板ばね６と、板ばね６が固定される固定側部材ＲＧと、外部の電源とレンズ駆動装置１０１との間の電気的な接続をもたらす金属部材７とを含む。レンズ体は、例えば、少なくとも１枚のレンズを備えた筒状のレンズバレルであり、その中心軸線が光軸方向に沿うように構成されている。「光軸方向」は、レンズ体に関する光軸ＪＤの方向、及び、光軸ＪＤに平行な方向を含む。 As shown in FIG. 1, the lens driving device 101 includes a lens holding member 2 capable of holding a lens body (not shown), and a lens holding member 2 that is arranged along the optical axis direction (for example, the Z-axis direction) of the lens body. a driving mechanism MK that moves the lens holding member 2 by means of a drive mechanism MK, a leaf spring 6 that supports the lens holding member 2 so as to be movable in the optical axis direction, a fixed side member RG to which the leaf spring 6 is fixed, an external power source, and the lens driving device 101. and a metal member 7 providing an electrical connection between them. The lens body is, for example, a cylindrical lens barrel having at least one lens, and is configured such that its central axis extends along the optical axis direction. "Optical axis direction" includes the direction of the optical axis JD with respect to the lens body and the direction parallel to the optical axis JD.

駆動機構ＭＫは、図１に示すように、略直方体の外形を有するレンズ保持部材２の４つの側面のうちの対向する２つに保持される２つのオーバル（oval）形状の巻回部１３（図５Ｂ参照。）を有するコイル３と、径方向（光軸方向に垂直な方向）においてコイル３と対向して配置された磁界発生部材５とを含む。 As shown in FIG. 1, the driving mechanism MK includes two oval-shaped winding portions 13 ( 5B), and a magnetic field generating member 5 arranged to face the coil 3 in the radial direction (the direction perpendicular to the optical axis direction).

カバー部材４は、矩形箱状をなした外側ケースであり、固定側部材ＲＧの一部を構成している。本実施形態では、カバー部材４は、オーステナイト系ステンレス鋼等の非磁性体で形成された板材に抜き加工及び絞り加工を施して作製される。 The cover member 4 is an outer case having a rectangular box shape, and constitutes a part of the fixed side member RG. In this embodiment, the cover member 4 is produced by punching and drawing a plate made of a non-magnetic material such as austenitic stainless steel.

具体的には、カバー部材４は、図１に示すように、収納部４ｓを定める箱状の外形を有する。そして、カバー部材４は、矩形筒状の外周壁部４Ａと、外周壁部４Ａの上端（Ｚ１側の端）と連続するように設けられた平板環状の天井部４Ｂとを有する。天井部４Ｂには、開口が形成されている。 Specifically, as shown in FIG. 1, the cover member 4 has a box-like outer shape that defines the storage portion 4s. The cover member 4 has a rectangular cylindrical outer wall portion 4A and a flat plate annular ceiling portion 4B provided so as to be continuous with the upper end (the end on the Z1 side) of the outer peripheral wall portion 4A. An opening is formed in the ceiling portion 4B.

外周壁部４Ａは、第１側板部４Ａ１～第４側板部４Ａ４を含む。第１側板部４Ａ１及び第２側板部４Ａ２は互いに対向して一対の側板部を構成している。同様に、第３側板部４Ａ３及び第４側板部４Ａ４は互いに対向して別の一対の側板部を構成している。また、本実施形態では、第１側板部４Ａ１及び第２側板部４Ａ２のそれぞれは、第３側板部４Ａ３及び第４側板部４Ａ４のそれぞれに対して垂直である。 The outer peripheral wall portion 4A includes a first side plate portion 4A1 to a fourth side plate portion 4A4. The first side plate portion 4A1 and the second side plate portion 4A2 constitute a pair of side plate portions facing each other. Similarly, the third side plate portion 4A3 and the fourth side plate portion 4A4 constitute another pair of side plate portions facing each other. Further, in the present embodiment, each of the first side plate portion 4A1 and the second side plate portion 4A2 is perpendicular to each of the third side plate portion 4A3 and the fourth side plate portion 4A4.

このように構成されたカバー部材４は、コイル３及び磁界発生部材５を収納部４ｓ内に収容し、且つ、図２Ａ及び図２Ｂに示すように、ベース部材１８に結合されてベース部材１８とともに筐体を構成する。 The cover member 4 configured in this manner accommodates the coil 3 and the magnetic field generating member 5 in the storage portion 4s, and is coupled to the base member 18 together with the base member 18 as shown in FIGS. 2A and 2B. Construct the chassis.

磁界発生部材５は、駆動機構ＭＫの一部を構成している。本実施形態では、磁界発生部材５は、図１に示すように、第１側板部４Ａ１に対向するように配置される第１磁界発生部材５Ａと、第２側板部４Ａ２に対向するように配置される第２磁界発生部材５Ｂとを含む。 The magnetic field generating member 5 constitutes a part of the driving mechanism MK. In this embodiment, as shown in FIG. 1, the magnetic field generating member 5 is arranged to face the first side plate portion 4A1 and the second side plate portion 4A2. and a second magnetic field generating member 5B.

第１磁界発生部材５Ａは、２つの二極磁石の組み合わせで構成されている。図１は、二極磁石のＮ極をクロスハッチングで表し、Ｓ極を斜線ハッチングで表している。磁界発生部材５を図示する他の図についても同様である。２つの二極磁石の組み合わせは、光軸方向に分極された１つの二極磁石又は１つの四極磁石等に比べ、カバー部材４の外側に磁場が漏れるのを抑えることができるという利点を有する。但し、第１磁界発生部材５Ａは、１つの二極磁石で構成されていてもよく、１つの四極磁石で構成されていてもよい。第２磁界発生部材５Ｂについても同様である。 The first magnetic field generating member 5A is composed of a combination of two dipole magnets. FIG. 1 shows the north pole of the dipole magnet with cross hatching and the south pole with diagonal hatching. The same applies to other drawings illustrating the magnetic field generating member 5. FIG. The combination of two dipole magnets has the advantage of being able to suppress magnetic field leakage to the outside of the cover member 4, compared to one dipole magnet or one quadrupole magnet polarized in the optical axis direction. However, the first magnetic field generating member 5A may be composed of one dipole magnet, or may be composed of one quadrupole magnet. The same applies to the second magnetic field generating member 5B.

具体的には、第１磁界発生部材５Ａは、図１に示すように、第１上側磁石５ＡＵ及び第１下側磁石５ＡＬを含む。また、第２磁界発生部材５Ｂは、第２上側磁石５ＢＵ及び第２下側磁石５ＢＬを含む。 Specifically, as shown in FIG. 1, the first magnetic field generating member 5A includes a first upper magnet 5AU and a first lower magnet 5AL. Also, the second magnetic field generating member 5B includes a second upper magnet 5BU and a second lower magnet 5BL.

第１上側磁石５ＡＵ、第１下側磁石５ＡＬ、第２上側磁石５ＢＵ、及び第２下側磁石５ＢＬは何れも略直方体形状をなしている。そして、磁界発生部材５は、コイル３（巻回部１３）の外側に位置するとともに、カバー部材４の外周壁部４Ａの２面に沿うように配置されている。また、磁界発生部材５は、接着剤により、外周壁部４Ａの内面に固定されている。なお、第１上側磁石５ＡＵ、第１下側磁石５ＡＬ、第２上側磁石５ＢＵ、及び第２下側磁石５ＢＬは、板状であってもよく、棒状であってもよい。 The first upper magnet 5AU, the first lower magnet 5AL, the second upper magnet 5BU, and the second lower magnet 5BL all have a substantially rectangular parallelepiped shape. The magnetic field generating member 5 is positioned outside the coil 3 (winding portion 13 ) and arranged along two surfaces of the outer peripheral wall portion 4</b>A of the cover member 4 . Further, the magnetic field generating member 5 is fixed to the inner surface of the outer peripheral wall portion 4A with an adhesive. The first upper magnet 5AU, the first lower magnet 5AL, the second upper magnet 5BU, and the second lower magnet 5BL may be plate-shaped or rod-shaped.

板ばね６は、レンズ保持部材２とカバー部材４（スペーサ部材１）との間に配置される上側板ばね１６と、レンズ保持部材２とベース部材１８との間に配置される下側板ばね２６とを含む。下側板ばね２６は、下側板ばね２６Ａ及び下側板ばね２６Ｂを含む。 The leaf springs 6 include an upper leaf spring 16 arranged between the lens holding member 2 and the cover member 4 (spacer member 1), and a lower leaf spring 26 arranged between the lens holding member 2 and the base member 18. including. The lower leaf springs 26 include a lower leaf spring 26A and a lower leaf spring 26B.

固定側部材ＲＧは、スペーサ部材１と、カバー部材４と、金属部材７が埋め込まれたベース部材１８とを含む。 Fixed-side member RG includes spacer member 1, cover member 4, and base member 18 in which metal member 7 is embedded.

スペーサ部材１は、レンズ保持部材２がＺ１方向に移動したときにレンズ保持部材２とカバー部材４とが衝突するのを防止できるように配置されている。 The spacer member 1 is arranged so as to prevent collision between the lens holding member 2 and the cover member 4 when the lens holding member 2 moves in the Z1 direction.

レンズ駆動装置１０１は、略直方体形状を有し、撮像素子（図示せず。）を実装した基板（図示せず。）の上に取り付けられる。基板と、レンズ駆動装置１０１と、レンズ保持部材２に装着されたレンズ体と、レンズ体に対向するように基板に実装された撮像素子とはカメラモジュールを構成する。コイル３は、下側板ばね２６、金属部材７、及び基板を介して外部の電源に接続される。外部の電源からコイル３に電流が流れると、駆動機構ＭＫは、光軸方向に沿った電磁力を発生させる。 The lens driving device 101 has a substantially rectangular parallelepiped shape and is mounted on a substrate (not shown) on which an imaging device (not shown) is mounted. The substrate, the lens driving device 101, the lens body attached to the lens holding member 2, and the imaging element mounted on the substrate so as to face the lens body constitute a camera module. The coil 3 is connected to an external power supply via the lower leaf spring 26, the metal member 7, and the substrate. When a current flows through the coil 3 from an external power supply, the drive mechanism MK generates an electromagnetic force along the optical axis direction.

レンズ駆動装置１０１は、この電磁力を利用し、撮像素子のＺ１側（被写体側）で、光軸方向に沿ってレンズ保持部材２を移動させることで自動焦点調節機能を実現する。具体的には、レンズ駆動装置１０１は、撮像素子から離れる方向にレンズ保持部材２を移動させてマクロ撮影を可能にし、撮像素子に近づく方向にレンズ保持部材２を移動させて無限遠撮影を可能にしている。 The lens driving device 101 utilizes this electromagnetic force to move the lens holding member 2 along the optical axis direction on the Z1 side (subject side) of the image sensor, thereby realizing an automatic focusing function. Specifically, the lens driving device 101 moves the lens holding member 2 away from the image pickup device to enable macro photography, and moves the lens holding member 2 toward the image pickup device to enable infinity photography. I have to.

次に、レンズ保持部材２と駆動機構ＭＫについて説明する。図５Ａは、レンズ保持部材２の上方斜視図であり、図５Ｂは、図５Ａのレンズ保持部材２にコイル３が巻かれた状態を示す。図６Ａは、レンズ保持部材２の下方斜視図であり、図６Ｂは、図６Ａのレンズ保持部材２にコイル３が巻かれた状態を示す。図７Ａは、レンズ保持部材２の上面図であり、図７Ｂは、図７Ａのレンズ保持部材２にコイル３が巻かれた状態を示す。図８Ａは、レンズ保持部材２の底面図であり、図８Ｂは、図８Ａに示すレンズ保持部材２にコイル３が巻かれた状態を示す。図９Ａは、図８Ｂに示す部分Ｐの拡大斜視図であり、図９Ｂは、図８Ｂに示す部分Ｑの拡大斜視図である。図１０Ａは、金属部材７及びベース部材１８の図示が省略された状態のレンズ駆動装置１０１の底面図であり、図１０Ｂは、更に、スペーサ部材１、カバー部材４、上側板ばね１６、及び下側板ばね２６の図示が省略された状態のレンズ駆動装置１０１の底面図である。 Next, the lens holding member 2 and the drive mechanism MK will be explained. FIG. 5A is an upper perspective view of the lens holding member 2, and FIG. 5B shows a state in which the coil 3 is wound around the lens holding member 2 of FIG. 5A. 6A is a bottom perspective view of the lens holding member 2, and FIG. 6B shows a state in which the coil 3 is wound around the lens holding member 2 of FIG. 6A. 7A is a top view of the lens holding member 2, and FIG. 7B shows a state in which the coil 3 is wound around the lens holding member 2 of FIG. 7A. 8A is a bottom view of the lens holding member 2, and FIG. 8B shows a state in which the coil 3 is wound around the lens holding member 2 shown in FIG. 8A. 9A is an enlarged perspective view of portion P shown in FIG. 8B, and FIG. 9B is an enlarged perspective view of portion Q shown in FIG. 8B. 10A is a bottom view of the lens driving device 101 with the illustration of the metal member 7 and the base member 18 omitted, and FIG. FIG. 4 is a bottom view of the lens driving device 101 with the side leaf springs 26 omitted.

本実施形態では、レンズ保持部材２は、液晶ポリマー（ＬＣＰ）等の合成樹脂を射出成形することで作製されている。具体的には、レンズ保持部材２は、図５Ａに示すように、光軸方向に沿って延びる貫通孔が形成された筒状部１２を含む。 In this embodiment, the lens holding member 2 is made by injection molding synthetic resin such as liquid crystal polymer (LCP). Specifically, as shown in FIG. 5A, the lens holding member 2 includes a tubular portion 12 formed with a through hole extending along the optical axis direction.

筒状部１２には、レンズ体が装着されるように、円筒状の内周面にねじ溝が設けられている。また、筒状部１２には、被写体側の端面に４つの窪み１２ｄｈを有した台座部１２ｄが設けられている。台座部１２ｄには、図４Ａに示すように、上側板ばね１６の内側部分１６ｉが載置される。 The cylindrical portion 12 has a thread groove on its cylindrical inner peripheral surface so that the lens body can be mounted thereon. Further, the cylindrical portion 12 is provided with a pedestal portion 12d having four depressions 12dh on the end face on the object side. As shown in FIG. 4A, the inner portion 16i of the upper leaf spring 16 is placed on the pedestal portion 12d.

筒状部１２の外周面には、図５Ａに示すように、コイル３を保持する巻き付け突起１２ｐが設けられている。本実施形態では、巻き付け突起１２ｐは、光軸方向に垂直な軸の周囲にコイル３が巻き付けられるよう、筒状部１２の外周面から径方向外側に突出する略直方体形状をなしている。具体的には、巻き付け突起１２ｐは、レンズ保持部材２の互いに対向する２つの外側面に配置されている。本実施形態では、巻き付け突起１２ｐは、Ｙ１側の外側面とＹ２側の外側面とに配置されている。 A winding projection 12p for holding the coil 3 is provided on the outer peripheral surface of the tubular portion 12, as shown in FIG. 5A. In this embodiment, the winding protrusion 12p has a substantially rectangular parallelepiped shape protruding radially outward from the outer peripheral surface of the cylindrical portion 12 so that the coil 3 is wound around an axis perpendicular to the optical axis direction. Specifically, the winding protrusions 12p are arranged on two outer surfaces of the lens holding member 2 that face each other. In this embodiment, the winding projection 12p is arranged on the outer surface on the Y1 side and the outer surface on the Y2 side.

コイル３は、図５Ｂに示すように、巻き付け突起１２ｐに導電性の線材を巻回して形成されている。具体的には、コイル３は、図６Ｂに示すように、第１側板部４Ａ１と対向するように配置される第１コイル３Ａと、第２側板部４Ａ２と対向するように配置される第２コイル３Ｂと、第１コイル３Ａと第２コイル３Ｂとを繋ぐ連結部３Ｃとを含む。そして、巻き付け突起１２ｐは、図７Ａ及び図７Ｂに示すように、第１コイル３Ａが巻き付けられる第１巻き付け突起１２ｐＡと、第２コイル３Ｂが巻き付けられる第２巻き付け突起１２ｐＢとを含む。本実施形態では、コイル３は、接着剤を用いずに巻き付け突起１２ｐに固定されているが、接着剤を用いて巻き付け突起１２ｐに固定されてもよい。また、コイル３の巻き方向は、任意であり、例えば、磁界発生部材５の配置（着磁方向）に応じて決定される。 As shown in FIG. 5B, the coil 3 is formed by winding a conductive wire around the winding projection 12p. Specifically, as shown in FIG. 6B, the coils 3 include a first coil 3A arranged to face the first side plate portion 4A1 and a second coil 3A arranged to face the second side plate portion 4A2. It includes a coil 3B and a connecting portion 3C that connects the first coil 3A and the second coil 3B. 7A and 7B, the winding projection 12p includes a first winding projection 12pA around which the first coil 3A is wound and a second winding projection 12pB around which the second coil 3B is wound. Although the coil 3 is fixed to the winding projection 12p without using an adhesive in this embodiment, it may be fixed to the winding projection 12p using an adhesive. Moreover, the winding direction of the coil 3 is arbitrary, and is determined, for example, according to the arrangement (magnetization direction) of the magnetic field generating member 5 .

第１コイル３Ａは、第１巻き付け突起１２ｐＡの周囲に環状に巻かれて形成されたコイル本体部としての巻回部１３を含み、第２コイル３Ｂは、第２巻き付け突起１２ｐＢの周囲に環状に巻かれて形成されたコイル本体部としての巻回部１３を含む。図５Ｂは、明瞭化のため、巻回部１３に関しては、絶縁部材で表面を被覆された導電性の線材の詳細な巻回状態の図示を省略している。巻回部１３を図示する他の図についても同様である。 The first coil 3A includes a winding portion 13 as a coil main body formed by winding in a ring around the first winding protrusion 12pA, and the second coil 3B is formed in a ring around the second winding protrusion 12pB. It includes a winding portion 13 as a coil main body formed by winding. For clarity, FIG. 5B omits the detailed winding state of the conductive wire whose surface is covered with an insulating member with respect to the winding portion 13 . The same applies to other drawings showing the winding portion 13 .

レンズ保持部材２は、図６Ａに示すように、撮像素子側（Ｚ２側）の端面から下方（Ｚ２方向）に突出した、角形凸状の突出部としての２つの保持部７２と、丸形凸状の４つの突設部２ｔとを含む。 As shown in FIG. 6A, the lens holding member 2 has two holding portions 72 as square convex protrusions protruding downward (Z2 direction) from the end surface on the image sensor side (Z2 side), and a round convex shape. and four projecting portions 2t of the shape.

保持部７２は、図６Ｂに示すように、コイル３の巻き始め側に対応する第１保持部７２Ａと、コイル３の巻き終わり側に対応する第２保持部７２Ｂとを含む。コイル３の両端は、保持部７２に巻き付けられて保持されている。 The holding portion 72 includes a first holding portion 72A corresponding to the winding start side of the coil 3 and a second holding portion 72B corresponding to the winding end side of the coil 3, as shown in FIG. 6B. Both ends of the coil 3 are wound around and held by the holding portion 72 .

突設部２ｔは、図６Ａ及び図１０Ａに示すように、下側板ばね２６Ａに対応する２つの突設部２ｔと、下側板ばね２６Ｂに対応する２つの突設部２ｔとを含む。突設部２ｔには、下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれの可動側支持部としての内側部分２６ｉが装着されて固定される。下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれの内側部分２６ｉの固定は、内側部分２６ｉに形成された貫通孔に挿通された突設部２ｔを熱かしめすることによって実現される。本実施形態に関する図では、突設部２ｔは、熱かしめされる前の先端が変形していない状態で図示されている。なお、突設部２ｔは、冷間かしめが施されてもよい。 As shown in FIGS. 6A and 10A, the protrusions 2t include two protrusions 2t corresponding to the lower leaf springs 26A and two protrusions 2t corresponding to the lower leaf springs 26B. An inner portion 26i as a movable side support portion for each of the lower leaf spring 26A and the lower leaf spring 26B is attached and fixed to the projecting portion 2t. The inner portions 26i of the lower leaf springs 26A and 26B are fixed by heat caulking the projecting portions 2t inserted through the through holes formed in the inner portions 26i. In the drawings relating to the present embodiment, the projecting portion 2t is shown in a state in which the tip thereof is not deformed before heat crimping. Note that the projecting portion 2t may be subjected to cold caulking.

次に、レンズ駆動装置１０１の駆動機構ＭＫについて説明する。駆動機構ＭＫは、図１０Ａ及び図１０Ｂに示すように、コイル３と、カバー部材４の外周壁部４Ａを構成する２つの側板部（第１側板部４Ａ１及び第２側板部４Ａ２）と対向するように配置された２つの磁界発生部材５とを含む。具体的には、磁界発生部材５は、第１側板部４Ａ１に対向するように配置された第１磁界発生部材５Ａと、第２側板部４Ａ２に対向するように配置された第２磁界発生部材５Ｂと、を含む。そして、駆動機構ＭＫは、コイル３に流れる電流と磁界発生部材５が発生する磁界とで駆動力（推力）を発生させ、レンズ保持部材２を光軸方向に沿って上下に移動させる。 Next, the driving mechanism MK of the lens driving device 101 will be described. As shown in FIGS. 10A and 10B, the drive mechanism MK faces the coil 3 and the two side plate portions (the first side plate portion 4A1 and the second side plate portion 4A2) that constitute the outer peripheral wall portion 4A of the cover member 4. and two magnetic field generating members 5 arranged as follows. Specifically, the magnetic field generating member 5 includes a first magnetic field generating member 5A arranged to face the first side plate portion 4A1 and a second magnetic field generating member arranged to face the second side plate portion 4A2. 5B and The driving mechanism MK generates a driving force (thrust force) with the current flowing through the coil 3 and the magnetic field generated by the magnetic field generating member 5, and moves the lens holding member 2 up and down along the optical axis direction.

コイル３の延在部３３は、図８Ｂに示すように、コイル３の巻き始め側で第１コイル３Ａに繋がっている第１延在部３３Ａと、コイル３の巻き終わり側で第２コイル３Ｂに繋がっている第２延在部３３Ｂとを含む。 As shown in FIG. 8B, the extending portion 33 of the coil 3 includes a first extending portion 33A connected to the first coil 3A on the winding start side of the coil 3 and a second coil 3B on the winding end side of the coil 3. and a second extension 33B connected to the .

具体的には、第１延在部３３Ａは、図９Ａに示すように、第１保持部７２Ａに巻き付けられる巻き付け部３３ｍと、レンズ保持部材２の底面（Ｚ２側の面）と対向して延びる第１対向部３３ｃと、レンズ保持部材２の底面と後面（Ｙ１側の面）の間にある縁部に対向して延びる第２対向部３３ｋとを含む。第２延在部３３Ｂは、図９Ｂに示すように、第２保持部７２Ｂに巻き付けられる巻き付け部３３ｍと、レンズ保持部材２の底面（Ｚ２側の面）と対向して延びる第１対向部３３ｃと、レンズ保持部材２の底面と前面（Ｙ２側の面）の間にある縁部に対向して延びる第２対向部３３ｋとを含む。 Specifically, as shown in FIG. 9A, the first extending portion 33A extends to face the winding portion 33m wound around the first holding portion 72A and the bottom surface (Z2 side surface) of the lens holding member 2. It includes a first facing portion 33c and a second facing portion 33k extending to face the edge portion between the bottom surface and the rear surface (Y1 side surface) of the lens holding member 2 . As shown in FIG. 9B, the second extending portion 33B includes a winding portion 33m wound around the second holding portion 72B and a first facing portion 33c extending facing the bottom surface (Z2 side surface) of the lens holding member 2. and a second facing portion 33k extending to face the edge portion between the bottom surface and the front surface (the surface on the Y2 side) of the lens holding member 2. As shown in FIG.

本実施形態では、第１延在部３３Ａは、コイル３の線材が第１巻き付け突起１２ｐＡの外周に巻き付けられる前に、レンズ保持部材２の第１保持部７２Ａに巻き付けられる。図９Ａに示す例では、コイル３の線材の一部が第１保持部７２Ａに４ターン巻き付けられている。これにより、巻き付け部３３ｍが第１保持部７２Ａに形成され、第１延在部３３Ａの一部が第１保持部７２Ａに保持される。但し、第１延在部３３Ａは、コイル３の線材が第１巻き付け突起１２ｐＡの外周に巻き付けられた後で、第１保持部７２Ａに巻き付けられてもよい。 In this embodiment, the first extending portion 33A is wound around the first holding portion 72A of the lens holding member 2 before the wire of the coil 3 is wound around the outer periphery of the first winding projection 12pA. In the example shown in FIG. 9A, part of the wire of the coil 3 is wound around the first holding portion 72A by four turns. As a result, the winding portion 33m is formed on the first holding portion 72A, and a portion of the first extending portion 33A is held by the first holding portion 72A. However, the first extending portion 33A may be wound around the first holding portion 72A after the wire material of the coil 3 is wound around the outer periphery of the first winding projection 12pA.

次に、第１巻き付け突起１２ｐＡの外周に線材が巻き付けられる。その際には、図９Ａに示すように、巻き付け部３３ｍから延びる線材は、レンズ保持部材２の底面と対向するように延び、更に、レンズ保持部材２の底面と後面との間にある縁部に対向するように延びる。このとき、レンズ保持部材２の底面と対向する部分が第１延在部３３Ａの第１対向部３３ｃを構成し、レンズ保持部材２の縁部と対向する部分が第１延在部３３Ａの第２対向部３３ｋを構成する。 Next, a wire rod is wound around the outer circumference of the first winding projection 12pA. At that time, as shown in FIG. 9A, the wire extending from the winding portion 33m extends so as to face the bottom surface of the lens holding member 2, and furthermore, the edge portion between the bottom surface and the rear surface of the lens holding member 2 is extended. extends to face the At this time, the portion facing the bottom surface of the lens holding member 2 constitutes the first facing portion 33c of the first extension portion 33A, and the portion facing the edge of the lens holding member 2 is the first extension portion 33A. 2-facing portion 33k is configured.

第１延在部３３Ａの第２対向部３３ｋは、レンズ保持部材２の縁部に対向して延びる際、図９Ａに示すように、レンズ保持部材２の縁部に接するように構成されている。そのため、落下等により強い衝撃がレンズ駆動装置１０１に加えられた際には、コイル３の第１延在部３３Ａはレンズ保持部材２の縁部に押し付けられる。本実施形態では、レンズ保持部材２の縁部は湾曲するように構成されている。そのため、第１延在部３３Ａは、レンズ保持部材２の縁部で切断され難い。第２延在部３３Ｂと接するレンズ保持部材２の縁部についても同様である。 The second facing portion 33k of the first extending portion 33A is configured to come into contact with the edge of the lens holding member 2 as shown in FIG. 9A when extending facing the edge of the lens holding member 2. . Therefore, when a strong impact is applied to the lens driving device 101 due to being dropped or the like, the first extending portion 33A of the coil 3 is pressed against the edge portion of the lens holding member 2 . In this embodiment, the edge of the lens holding member 2 is configured to be curved. Therefore, the first extending portion 33A is less likely to be cut at the edge of the lens holding member 2 . The same applies to the edge portion of the lens holding member 2 that contacts the second extending portion 33B.

その後、第１コイル３Ａの巻回部１３から引き出された線材によって連結部３Ｃが形成される。次に、第２巻き付け突起１２ｐＢの外周にも同様に線材が巻き付けられる。そして、第１巻き付け突起１２ｐＡの外周への線材の巻き付けと、第２巻き付け突起１２ｐＢの外周への線材の巻き付けとが終了すると、第２コイル３Ｂの巻回部１３の巻き終わり側の端部に繋がる第２延在部３３Ｂは、図９Ｂに示すように、レンズ保持部材２の前面側から底面側に引き出される。具体的には、第２対向部３３ｋがレンズ保持部材２の底面と前面の間にある縁部に対向して延び、第１対向部３３ｃがレンズ保持部材２の底面と対向して延び、巻き付け部３３ｍがレンズ保持部材２の第２保持部７２Ｂに巻き付けられる。図９Ｂに示す例では、第２延在部３３Ｂは、第２保持部７２Ｂに４ターン巻き付けられている。 After that, the connecting portion 3C is formed by the wire pulled out from the winding portion 13 of the first coil 3A. Next, the wire rod is similarly wound around the outer periphery of the second winding protrusion 12pB. When the winding of the wire around the outer periphery of the first winding protrusion 12pA and the winding of the wire around the outer periphery of the second winding protrusion 12pB are completed, the end of the winding end of the winding portion 13 of the second coil 3B As shown in FIG. 9B, the connected second extension portion 33B is pulled out from the front surface side of the lens holding member 2 to the bottom surface side. Specifically, the second facing portion 33k extends to face the edge between the bottom surface and the front surface of the lens holding member 2, and the first facing portion 33c extends to face the bottom surface of the lens holding member 2 so that the winding is performed. The portion 33m is wound around the second holding portion 72B of the lens holding member 2. As shown in FIG. In the example shown in FIG. 9B, the second extension portion 33B is wound around the second holding portion 72B by four turns.

次に、板ばね６及び固定側部材ＲＧの詳細について説明する。図１１Ａは、上側板ばね１６の上面図であり、図１１Ｂは、下側板ばね２６の上面図である。図１２Ａ及び図１２Ｂは、下側板ばね２６Ａとコイル３との接続構造の一例を説明する図である。具体的には、図１２Ａは、図１０Ａに示す部分Ｔの拡大図であり、図１２Ｂは、図１０Ａに示す部分ＴをＹ２側から見たときの下側板ばね２６Ａ、コイル３、及びレンズ保持部材２の拡大図である。なお、図１２Ａ及び図１２Ｂでは、説明を分かり易くするため、接合材としての導電性接着剤ＣＡがクロスハッチングで示されている。図１３は、固定側部材ＲＧとしてのベース部材１８を説明する図である。具体的には、図１３は、金属部材７が埋め込まれるベース部材１８の分解斜視図及び完成斜視図を含む。 Next, details of the leaf spring 6 and the stationary member RG will be described. 11A is a top view of upper leaf spring 16 and FIG. 11B is a top view of lower leaf spring 26. FIG. 12A and 12B are diagrams illustrating an example of a connection structure between the lower leaf spring 26A and the coil 3. FIG. Specifically, FIG. 12A is an enlarged view of the portion T shown in FIG. 10A, and FIG. 12B is an enlarged view of the lower leaf spring 26A, the coil 3, and the lens holding portion when the portion T shown in FIG. 10A is viewed from the Y2 side. 4 is an enlarged view of the member 2; FIG. In addition, in FIGS. 12A and 12B, the conductive adhesive CA as a bonding material is indicated by cross hatching for easy understanding of the explanation. FIG. 13 is a diagram illustrating the base member 18 as the stationary member RG. Specifically, FIG. 13 includes an exploded perspective view and a completed perspective view of the base member 18 in which the metal member 7 is embedded.

本実施形態では、板ばね６は、銅合金を主な材料とした金属板から作製されている。そして、板ばね６は、レンズ保持部材２とカバー部材４（スペーサ部材１）との間に配置される上側板ばね１６と、レンズ保持部材２とベース部材１８との間に配置される下側板ばね２６とを含む。レンズ保持部材２と板ばね６（上側板ばね１６、下側板ばね２６Ａ、及び下側板ばね２６Ｂ）のそれぞれとが係合された状態で、板ばね６は、レンズ保持部材２が光軸方向へ移動可能となるように、レンズ保持部材２を空中で支持している。下側板ばね２６Ａ及び下側板ばね２６Ｂは、コイル３に電流を供給するための給電部材として機能する。そのため、下側板ばね２６Ａはコイル３の一端部に電気的に接続され、下側板ばね２６Ｂはコイル３の他端部に電気的に接続されている。上側板ばね１６とカバー部材４との間にはスペーサ部材１が配置されている。 In this embodiment, the leaf spring 6 is made of a metal plate whose main material is a copper alloy. The leaf spring 6 includes an upper leaf spring 16 arranged between the lens holding member 2 and the cover member 4 (spacer member 1) and a lower leaf spring arranged between the lens holding member 2 and the base member 18. and a spring 26 . When the lens holding member 2 and the leaf springs 6 (the upper leaf spring 16, the lower leaf spring 26A, and the lower leaf spring 26B) are engaged with each other, the leaf springs 6 move the lens holding member 2 in the optical axis direction. The lens holding member 2 is supported in the air so as to be movable. The lower leaf spring 26A and the lower leaf spring 26B function as power supply members for supplying current to the coil 3. As shown in FIG. Therefore, the lower leaf spring 26A is electrically connected to one end of the coil 3, and the lower leaf spring 26B is electrically connected to the other end of the coil 3. As shown in FIG. A spacer member 1 is arranged between the upper leaf spring 16 and the cover member 4 .

上側板ばね１６は、図１１Ａに示すように、略矩形状を有し、レンズ保持部材２に固定される可動側支持部としての内側部分１６ｉと、固定側部材ＲＧとしてのスペーサ部材１に固定される固定側支持部としての外側部分１６ｅと、内側部分１６ｉと外側部分１６ｅとの間に位置する４つの弾性腕部１６ｇとを含む。具体的には、内側部分１６ｉは、レンズ保持部材２の台座部１２ｄ（図５Ａ参照。）と対向するように設けられている。外側部分１６ｅは、４つの角部分１６ｂと、隣接する２つの角部分１６ｂを繋ぐ４つの桟部１６ｒとを有している。４つの桟部１６ｒのうちの２つは、図４Ａ及び図４Ｂに示すように、スペーサ部材１と磁界発生部材５とで挟持されて接着剤で固定される。角部分１６ｂは、接着剤でスペーサ部材１の角部に固定される。スペーサ部材１、カバー部材４、及び磁界発生部材５は、固定側部材ＲＧとして機能する。 As shown in FIG. 11A, the upper leaf spring 16 has a substantially rectangular shape, and is fixed to an inner portion 16i as a movable side support portion fixed to the lens holding member 2 and to the spacer member 1 as a fixed side member RG. and four elastic arm portions 16g positioned between the inner portion 16i and the outer portion 16e. Specifically, the inner portion 16i is provided so as to face the pedestal portion 12d of the lens holding member 2 (see FIG. 5A). The outer portion 16e has four corner portions 16b and four crosspieces 16r connecting two adjacent corner portions 16b. Two of the four crosspieces 16r are sandwiched between the spacer member 1 and the magnetic field generating member 5 and fixed with an adhesive, as shown in FIGS. 4A and 4B. The corner portion 16b is fixed to the corner of the spacer member 1 with an adhesive. The spacer member 1, the cover member 4, and the magnetic field generating member 5 function as a stationary member RG.

具体的には、上側板ばね１６がレンズ駆動装置１０１に組み込まれた際には、図４Ａに示すように、内側部分１６ｉは、レンズ保持部材２の台座部１２ｄ（図５Ａ参照。）に載置される。そして、内側部分１６ｉと台座部１２ｄとを接着剤で固定することにより、内側部分１６ｉはレンズ保持部材２に固定される。外側部分１６ｅは、図４Ｂに示すように、磁界発生部材５の上面（Ｚ１側の面）に接し、スペーサ部材１（図４Ａ参照。）と磁界発生部材５との間に挟持されて固定される。 Specifically, when the upper leaf spring 16 is incorporated in the lens driving device 101, the inner portion 16i is placed on the base portion 12d (see FIG. 5A) of the lens holding member 2 as shown in FIG. 4A. placed. The inner portion 16i is fixed to the lens holding member 2 by fixing the inner portion 16i and the base portion 12d with an adhesive. As shown in FIG. 4B, the outer portion 16e is in contact with the upper surface (Z1 side surface) of the magnetic field generating member 5, and is sandwiched and fixed between the spacer member 1 (see FIG. 4A) and the magnetic field generating member 5. be.

上側板ばね１６は、図１１Ａに示すように、実質的に、光軸ＪＤに対して４回回転対称の形状を有している。そして、上側板ばね１６は、内側部分１６ｉでレンズ保持部材２に固定され、外側部分１６ｅでスペーサ部材１を介してカバー部材４に固定されている。そのため、上側板ばね１６は、レンズ保持部材２をバランス良く空中で支持できる。 As shown in FIG. 11A, the upper leaf spring 16 substantially has a four-fold rotational symmetry with respect to the optical axis JD. The upper leaf spring 16 is fixed to the lens holding member 2 at the inner portion 16i, and is fixed to the cover member 4 via the spacer member 1 at the outer portion 16e. Therefore, the upper leaf spring 16 can support the lens holding member 2 in the air with good balance.

下側板ばね２６Ａ及び下側板ばね２６Ｂは、図１１Ｂに示すように、それぞれの内側形状が略半円形状となるように構成されている。そして、下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれは、レンズ保持部材２に固定される可動側支持部としての内側部分２６ｉと、固定側部材ＲＧとしてのベース部材１８に固定される固定側支持部としての外側部分２６ｅと、内側部分２６ｉと外側部分２６ｅとの間に位置する弾性腕部２６ｇとを含む。 As shown in FIG. 11B, the lower leaf spring 26A and the lower leaf spring 26B are configured so that their inner shapes are substantially semicircular. Each of the lower plate spring 26A and the lower plate spring 26B includes an inner portion 26i as a movable side support portion that is fixed to the lens holding member 2, and a fixed side support portion that is fixed to the base member 18 as a fixed side member RG. and an elastic arm 26g located between the inner portion 26i and the outer portion 26e.

下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれの内側部分２６ｉは、図１１Ｂに示すように、レンズ保持部材２と係合される２つの内側接合部分２６ｃと、２つの内側接合部分２６ｃを繋ぐ第１連結部２６ｐと、コイル３の延在部３３と対向する接続板部２６ｈとを含む。 Each inner portion 26i of the lower leaf spring 26A and the lower leaf spring 26B includes, as shown in FIG. 11B, two inner joint portions 26c engaged with the lens holding member 2 and a second joint portion connecting the two inner joint portions 26c. 1 connecting portion 26p and connecting plate portion 26h facing extending portion 33 of coil 3 are included.

下側板ばね２６Ａ及び下側板ばね２６Ｂがレンズ駆動装置１０１に組み込まれた際には、図６Ａに示すレンズ保持部材２の４つの突設部２ｔのそれぞれは、図１１Ｂに示す下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれの内側接合部分２６ｃに設けられた円形の貫通孔に挿通されて嵌合される。これにより、下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれの内側部分２６ｉは、レンズ保持部材２に位置決めされ且つ固定される。下側板ばね２６Ａ及び下側板ばね２６Ｂは、例えば、レンズ保持部材２の突設部２ｔに熱かしめ又は冷間かしめを施すことで、レンズ保持部材２に固定される。 When the lower leaf spring 26A and the lower leaf spring 26B are incorporated in the lens driving device 101, each of the four projecting portions 2t of the lens holding member 2 shown in FIG. The lower leaf springs 26B are inserted and fitted through circular through holes provided in the inner joint portions 26c of the lower leaf springs 26B. As a result, the inner portions 26i of the lower leaf springs 26A and 26B are positioned and fixed to the lens holding member 2. As shown in FIG. The lower leaf spring 26A and the lower leaf spring 26B are fixed to the lens holding member 2, for example, by subjecting the projecting portion 2t of the lens holding member 2 to hot or cold caulking.

以下では、主に下側板ばね２６Ａとレンズ保持部材２及びコイル３との関係を説明する。但し、下側板ばね２６Ａに関する説明は、下側板ばね２６Ｂにも同様に適用される。 Below, the relationship between the lower leaf spring 26A, the lens holding member 2, and the coil 3 will be mainly described. However, the description regarding the lower leaf spring 26A also applies to the lower leaf spring 26B.

下側板ばね２６Ａの内側部分２６ｉの接続板部２６ｈは、図１２Ａ及び図１２Ｂに示すように、レンズ駆動装置１０１が組み立てられた際には、レンズ保持部材２の突堤部８２と対向する。すなわち、接続板部２６ｈの被写体側（Ｚ１側）の面は、図１２Ａに示すように、突堤部８２で形成された収容部８２ｓと対向する。そして、コイル３の第２延在部３３Ｂの第１対向部３３ｃは、図１２Ａに示すように、下側板ばね２６Ａの内側部分２６ｉ（接続板部２６ｈ）の被写体側（Ｚ１側）の面とレンズ保持部材２の撮像素子側（Ｚ２側）の面との間を通って延びる。 The connecting plate portion 26h of the inner portion 26i of the lower leaf spring 26A faces the jetty portion 82 of the lens holding member 2 when the lens driving device 101 is assembled, as shown in FIGS. 12A and 12B. That is, the subject-side (Z1 side) surface of the connection plate portion 26h faces the accommodation portion 82s formed by the jetty portion 82, as shown in FIG. 12A. As shown in FIG. 12A, the first facing portion 33c of the second extending portion 33B of the coil 3 and the inner portion 26i (connecting plate portion 26h) of the lower leaf spring 26A face the object side (Z1 side). It extends through the surface of the lens holding member 2 on the imaging device side (Z2 side).

突堤部８２は、図９Ｂに示すように、レンズ保持部材２の中心側に位置する内側壁部８２ｕと、内側壁部８２ｕと対向して外側に位置する外側壁部８２ｖと、第２保持部７２Ｂに近い側で内側壁部８２ｕと外側壁部８２ｖとの間に位置する側壁部８２ｗとを含む。第２保持部７２Ｂから遠い突堤部８２の側には、図９Ｂに示すように、壁部が切り欠かれた開放部８２ｚが形成されている。そして、３つの壁部（内側壁部８２ｕ、外側壁部８２ｖ、側壁部８２ｗ）で囲われた空間が収容部８２ｓを形成している。収容部８２ｓは、コイル３の第２延在部３３Ｂと下側板ばね２６Ａとを接続する導電性接着剤ＣＡを収容できるように構成されている。本実施形態では、突堤部８２が第２保持部７２Ｂと隣り合う位置に形成されているので、第２保持部７２Ｂの側壁は、突堤部８２の側壁部８２ｗとして好適に利用されている。したがって、第２保持部７２Ｂと隣り合う位置に収容部８２ｓが設けられている。 As shown in FIG. 9B, the jetty portion 82 includes an inner wall portion 82u located on the center side of the lens holding member 2, an outer wall portion 82v located outside facing the inner wall portion 82u, and a second holding portion. A side wall portion 82w located between inner wall portion 82u and outer wall portion 82v on the side near 72B. As shown in FIG. 9B, an open portion 82z is formed by notching a wall portion on the jetty portion 82 side far from the second holding portion 72B. A space surrounded by three walls (inner wall 82u, outer wall 82v, and sidewall 82w) forms a housing portion 82s. The accommodation portion 82s is configured to accommodate the conductive adhesive CA that connects the second extension portion 33B of the coil 3 and the lower leaf spring 26A. In this embodiment, since the jetty portion 82 is formed adjacent to the second holding portion 72B, the side wall of the second holding portion 72B is preferably used as the side wall portion 82w of the jetty portion 82 . Accordingly, a housing portion 82s is provided at a position adjacent to the second holding portion 72B.

下側板ばね２６Ａがレンズ保持部材２に組み付けられた際には、図１２Ｂに示すように、第２保持部７２Ｂは、その先端が下側板ばね２６Ａの内側部分２６ｉの撮像素子側（Ｚ２側）に位置するように、内側部分２６ｉよりも下方（Ｚ２方向）に突出している。また、巻き付け部３３ｍの一部も内側部分２６ｉの撮像素子側（Ｚ２側）に位置するように第２保持部７２Ｂに巻き付けられている。 When the lower leaf spring 26A is assembled to the lens holding member 2, as shown in FIG. 12B, the tip of the second holding portion 72B is positioned toward the imaging element side (Z2 side) of the inner portion 26i of the lower leaf spring 26A. , and protrudes downward (Z2 direction) from the inner portion 26i. A portion of the winding portion 33m is also wound around the second holding portion 72B so as to be positioned on the imaging element side (Z2 side) of the inner portion 26i.

下側板ばね２６Ａとコイル３の第２延在部３３Ｂは、合成樹脂中に銀粒子等の導電性フィラーが分散された導電性接着剤ＣＡで電気的且つ物理的に接続されている。具体的には、下側板ばね２６Ａをレンズ保持部材２に組み込む前に、レンズ保持部材２の突堤部８２で囲まれた収容部８２ｓに導電性接着剤ＣＡが充填され、その後、下側板ばね２６Ａがレンズ保持部材２に装着される。そして、レンズ保持部材２の突設部２ｔが熱かしめされ、且つ、導電性接着剤ＣＡが熱硬化される。導電性接着剤ＣＡの収容部８２ｓへの充填から導電性接着剤ＣＡの熱硬化までは、第２保持部７２Ｂが鉛直上方に突出するようにレンズ保持部材２が逆さまにされた状態で行われる。そのため、導電性接着剤ＣＡは、流動性を有する場合であっても、所望の位置（収容部８２ｓ内の位置）に適切に保持され得る。そして、第１対向部３３ｃの一部は、収容部８２ｓ内に配置されているため、導電性接着剤ＣＡ内に埋設される。なお、導電性接着剤ＣＡは、熱硬化型に限らず、紫外線硬化型のものであってもよく、湿気硬化型のものであってもよい。 The lower leaf spring 26A and the second extending portion 33B of the coil 3 are electrically and physically connected by a conductive adhesive CA, which is a synthetic resin in which conductive fillers such as silver particles are dispersed. Specifically, before incorporating the lower leaf spring 26A into the lens holding member 2, the accommodation portion 82s surrounded by the jetty portion 82 of the lens holding member 2 is filled with the conductive adhesive CA, and then the lower leaf spring 26A is filled. is attached to the lens holding member 2 . Then, the projecting portion 2t of the lens holding member 2 is thermally crimped, and the conductive adhesive CA is thermally cured. From the filling of the container portion 82s with the conductive adhesive CA to the thermal curing of the conductive adhesive CA, the lens holding member 2 is turned upside down so that the second holding portion 72B protrudes vertically upward. . Therefore, even if the conductive adhesive CA has fluidity, it can be appropriately held at a desired position (position within the accommodating portion 82s). A part of the first facing portion 33c is arranged in the accommodating portion 82s, and thus is embedded in the conductive adhesive CA. In addition, the conductive adhesive CA is not limited to the heat-curing type, and may be of the ultraviolet-curing type or the moisture-curing type.

下側板ばね２６Ａの外側部分２６ｅは、図１１Ｂに示すように、ベース部材１８と係合される２つの外側接合部分２６ｄと、２つの外側接合部分２６ｄを繋ぐ第２連結部２６ｑとを含む。下側板ばね２６Ａの外側接合部分２６ｄに設けられた貫通孔は、ベース部材１８の上面に設けられた突設部１８ｔ（図１３参照。）と嵌合する。これにより、下側板ばね２６Ａの外側部分２６ｅは、ベース部材１８に位置決めされ且つ固定される。 The outer portion 26e of the lower leaf spring 26A includes, as shown in FIG. 11B, two outer joint portions 26d engaged with the base member 18 and a second connecting portion 26q connecting the two outer joint portions 26d. A through hole provided in the outer joint portion 26d of the lower leaf spring 26A is fitted with a projecting portion 18t (see FIG. 13) provided on the upper surface of the base member 18. As shown in FIG. The outer portion 26e of the lower leaf spring 26A is thereby positioned and fixed to the base member 18. As shown in FIG.

下側板ばね２６Ａ及び下側板ばね２６Ｂは、図１１Ｂに示すように、光軸ＪＤに対して２回回転対称の形状を有する。そして、下側板ばね２６Ａは、２つの内側接合部分２６ｃでレンズ保持部材２に接続され、２つの外側接合部分２６ｄでベース部材１８に接続されている。下側板ばね２６Ｂについても同様である。この構成により、下側板ばね２６Ａ及び下側板ばね２６Ｂは、レンズ保持部材２を光軸方向へ移動可能な状態でバランス良く空中で支持することができる。 As shown in FIG. 11B, the lower leaf spring 26A and the lower leaf spring 26B have two-fold rotational symmetry with respect to the optical axis JD. The lower leaf spring 26A is connected to the lens holding member 2 at two inner joint portions 26c, and is connected to the base member 18 at two outer joint portions 26d. The same applies to the lower leaf spring 26B. With this configuration, the lower leaf spring 26A and the lower leaf spring 26B can support the lens holding member 2 in the air in a well-balanced manner so as to be movable in the optical axis direction.

次に、固定側部材ＲＧの詳細について説明する。固定側部材ＲＧは、上側板ばね１６を固定するスペーサ部材１、カバー部材４、及び磁界発生部材５と、下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれを固定するベース部材１８とを含む。 Next, details of the stationary member RG will be described. The stationary member RG includes a spacer member 1, a cover member 4, and a magnetic field generating member 5 that fix the upper leaf spring 16, and a base member 18 that fixes the lower leaf spring 26A and the lower leaf spring 26B.

ベース部材１８は、液晶ポリマー等の合成樹脂を用いた射出成形によって作製される。本実施形態では、ベース部材１８は、図１３に示すように、略矩形板状の外形を有する部材であり、中央に円形の開口１８ｋが形成されている。また、ベース部材１８の被写体側（Ｚ１側）の面（上面）には、上方に向けて突出する６つの突設部１８ｔが設けられている。突設部１８ｔは、下側板ばね２６Ａ及び下側板ばね２６Ｂのそれぞれにおける外側接合部分２６ｄに設けられた貫通孔に挿通され且つ嵌合される。この際、突設部１８ｔは熱かしめが施されて外側接合部分２６ｄに固定される。本実施形態に関する図では、突設部１８ｔは、熱かしめされた後の先端が変形した状態で図示されている。突設部１８ｔは冷間かしめが施されて外側接合部分２６ｄに固定されてもよい。 The base member 18 is manufactured by injection molding using synthetic resin such as liquid crystal polymer. In this embodiment, as shown in FIG. 13, the base member 18 is a member having a substantially rectangular plate-like outer shape, and a circular opening 18k is formed in the center. In addition, on the object side (Z1 side) surface (upper surface) of the base member 18, six projecting portions 18t projecting upward are provided. The projecting portion 18t is inserted and fitted into a through hole provided in the outer joint portion 26d of each of the lower leaf spring 26A and the lower leaf spring 26B. At this time, the projecting portion 18t is thermally caulked and fixed to the outer joint portion 26d. In the drawings relating to the present embodiment, the protruding portion 18t is shown in a state in which the tip thereof is deformed after being thermally crimped. The protruding portion 18t may be cold crimped to be secured to the outer joint portion 26d.

ベース部材１８には、図１３に示すように、銅若しくは鉄又はそれらを主成分とする合金等の材料を含む金属板から形成された金属部材７がインサート成形されて埋め込まれている。 In the base member 18, as shown in FIG. 13, a metal member 7 made of a metal plate containing a material such as copper, iron, or an alloy containing them as a main component is embedded by insert molding.

金属部材７は、第１金属部材７Ａ～第３金属部材７Ｃを含む。第１金属部材７Ａは、ベース部材１８の上面（Ｚ１側の面）から露出する接続部７ＡＣを有し、第２金属部材７Ｂは、ベース部材１８の上面（Ｚ１側の面）から露出する接続部７ＢＣを有する。接続部７ＡＣの表面と接続部７ＢＣの表面は、同一平面上に位置している。 The metal member 7 includes a first metal member 7A to a third metal member 7C. The first metal member 7A has a connection portion 7AC exposed from the top surface (Z1 side surface) of the base member 18, and the second metal member 7B has a connection portion exposed from the top surface (Z1 side surface) of the base member 18. It has part 7BC. The surface of the connecting portion 7AC and the surface of the connecting portion 7BC are positioned on the same plane.

接続部７ＡＣは、下側板ばね２６Ａの外側接合部分２６ｄに形成された貫通孔２６ｄｔ（図１１Ｂ参照。）に対向した状態で、導電性接合材を介して下側板ばね２６Ａの外側接合部分２６ｄに接続される。導電性接合材は、例えば、半田又は導電性接着剤等である。本実施形態では、導電性接合材は、導電性接着剤である。 The connection portion 7AC is connected to the outer joint portion 26d of the lower leaf spring 26A via a conductive joint material while facing the through hole 26dt (see FIG. 11B) formed in the outer joint portion 26d of the lower leaf spring 26A. Connected. The conductive bonding material is, for example, solder or conductive adhesive. In this embodiment, the conductive bonding material is a conductive adhesive.

同様に、接続部７ＢＣは、下側板ばね２６Ｂの外側接合部分２６ｄに形成された貫通孔２６ｄｔ（図１１Ｂ参照。）に対向した状態で、導電性接合材を介して下側板ばね２６Ｂの外側接合部分２６ｄに接続される。 Similarly, the connecting portion 7BC is joined to the outside of the lower leaf spring 26B via a conductive joining material while facing the through hole 26dt (see FIG. 11B) formed in the outer joining portion 26d of the lower leaf spring 26B. It is connected to part 26d.

第１金属部材７Ａは、ベース部材１８の底面（Ｚ２側の面）から下方に突出する端子部７ＡＴを有し、第２金属部材７Ｂは、ベース部材１８の底面（Ｚ２側の面）から下方に突出する端子部７ＢＴを有する。 The first metal member 7A has a terminal portion 7AT projecting downward from the bottom surface (Z2 side surface) of the base member 18, and the second metal member 7B extends downward from the bottom surface (Z2 side surface) of the base member 18. It has a terminal portion 7BT that protrudes into.

第３金属部材７Ｃは、ベース部材１８の角部から光軸方向に垂直な方向に外側に突出する端部７Ｃ１～７Ｃ４を有する。端部７Ｃ１～７Ｃ４のそれぞれは、図２Ａ及び図２Ｂに示すように、カバー部材４の四隅の下端部と接触するように構成されている。 The third metal member 7C has end portions 7C1 to 7C4 projecting outward from corners of the base member 18 in a direction perpendicular to the optical axis direction. Each of the end portions 7C1 to 7C4 is configured to contact the lower ends of the four corners of the cover member 4, as shown in FIGS. 2A and 2B.

ベース部材１８は、カバー部材４の外周壁部４Ａの内面とベース部材１８の外周側面とが組み合わさって位置決めされた後で、端部７Ｃ１～７Ｃ４のそれぞれとカバー部材４の四隅の下端部とが溶接されてカバー部材４に固定される。カバー部材４とベース部材１８とは少なくとも部分的に接着剤で固定されてもよい。 After the inner surface of the outer peripheral wall portion 4A of the cover member 4 and the outer peripheral side surface of the base member 18 are combined and positioned, the base member 18 is positioned between the ends 7C1 to 7C4 and the lower ends of the four corners of the cover member 4. are welded and fixed to the cover member 4 . The cover member 4 and base member 18 may be at least partially secured with an adhesive.

次に、図１４Ａ～図１４Ｃ及び図１５Ａ～図１５Ｃを参照し、レンズ駆動装置１０１の上部組立体ＵＡについて説明する。上部組立体ＵＡは、主に、スペーサ部材１、カバー部材４、上側板ばね１６、及び磁界発生部材５で構成されている。図１４Ａ～図１４Ｃ及び図１５Ａ～図１５Ｃは、上部組立体ＵＡの組立手順を説明する図である。具体的には、図１４Ａは、逆さまにされた状態のカバー部材４の斜視図を示し、図１４Ｂは、逆さまにされた状態のスペーサ部材１の斜視図を示し、図１４Ｃは、スペーサ部材１が嵌め込まれたカバー部材４の斜視図を示す。図１５Ａは、更に上側板ばね１６が嵌め込まれたカバー部材４の斜視図を示し、図１５Ｂは、更に第２上側磁石５ＢＵが嵌め込まれたカバー部材４の斜視図を示し、図１５Ｃは、更に第２下側磁石５ＢＬが嵌め込まれたカバー部材４の斜視図を示す。 Next, the upper assembly UA of the lens driving device 101 will be described with reference to FIGS. 14A to 14C and FIGS. 15A to 15C. The upper assembly UA is mainly composed of a spacer member 1 , a cover member 4 , an upper leaf spring 16 and a magnetic field generating member 5 . 14A to 14C and 15A to 15C are diagrams explaining the assembly procedure of the upper assembly UA. Specifically, FIG. 14A shows a perspective view of the cover member 4 in an inverted state, FIG. 14B shows a perspective view of the spacer member 1 in an inverted state, and FIG. shows a perspective view of the cover member 4 in which is fitted. 15A shows a perspective view of the cover member 4 further fitted with the upper leaf spring 16, FIG. 15B shows a perspective view of the cover member 4 further fitted with the second upper magnet 5BU, and FIG. The perspective view of the cover member 4 with which 2nd lower magnet 5BL was inserted is shown.

図１５Ｃは、上部組立体ＵＡが完成した状態を示す。その後、上部組立体ＵＡは、下部組立体に組み付けられる。下部組立体は、主に、レンズ保持部材２、コイル３、下側板ばね２６、及びベース部材１８で構成されている。下部組立体は、図４Ｂに示す構成から磁界発生部材５及び上側板ばね１６を取り外した構成に相当する。 FIG. 15C shows the completed state of the upper assembly UA. The upper assembly UA is then assembled to the lower assembly. The lower assembly mainly consists of the lens holding member 2, the coil 3, the lower leaf spring 26, and the base member 18. As shown in FIG. The lower assembly corresponds to the configuration shown in FIG. 4B with the magnetic field generating member 5 and the upper leaf spring 16 removed.

レンズ駆動装置１０１の上部組立体ＵＡの組み立ては、典型的には、図１４Ａに示すように、カバー部材４が逆さまにされた状態、すなわち、天井部４Ｂの内側（Ｚ２側）の面を上に向けた状態で行われる。そして、スペーサ部材１は、図１４Ｂに示すように逆さまにされた状態で、図１４Ｃに示すようにカバー部材４の内部に嵌め込まれる。 Typically, as shown in FIG. 14A, the upper assembly UA of the lens driving device 101 is assembled with the cover member 4 turned upside down, that is, with the inner (Z2 side) surface of the ceiling portion 4B facing up. It is performed in a state facing Then, the spacer member 1 is fitted inside the cover member 4 as shown in FIG. 14C while being turned upside down as shown in FIG. 14B.

スペーサ部材１は、上側板ばね１６の固定側支持部である外側部分１６ｅが当接するように構成された部材であり、図１４Ｂに示すように、枠状部１Ｃ及び突出部１Ｐを有する。枠状部１Ｃは、カバー部材４の天井部４Ｂと対向するように構成された矩形枠状の部材であり、カバー部材４の第１側板部４Ａ１～第４側板部４Ａ４のそれぞれに沿って延在する第１延在部１Ｃ１～第４延在部１Ｃ４を含む。突出部１Ｐは、枠状部１Ｃから下方（Ｚ２方向）へ突出するように、すなわち、天井部４Ｂから離れる方向に突出するように構成された部材であり、第１突出部１Ｐ１～第４突出部１Ｐ４を含む。突出部１Ｐは、スペーサ部材１がカバー部材４の内部に嵌め込まれたときに、カバー部材４の外周壁部４Ａの内壁面と対向するように構成されている。 The spacer member 1 is a member configured so that the outer portion 16e, which is the fixed-side support portion of the upper leaf spring 16, abuts thereon, and as shown in FIG. The frame-shaped portion 1C is a rectangular frame-shaped member configured to face the ceiling portion 4B of the cover member 4, and extends along each of the first side plate portion 4A1 to the fourth side plate portion 4A4 of the cover member 4. It includes a first extension portion 1C1 to a fourth extension portion 1C4. The protruding portion 1P is a member configured to protrude downward (Z2 direction) from the frame-shaped portion 1C, that is, to protrude in a direction away from the ceiling portion 4B. Includes part 1P4. The projecting portion 1P is configured to face the inner wall surface of the outer peripheral wall portion 4A of the cover member 4 when the spacer member 1 is fitted inside the cover member 4. As shown in FIG.

具体的には、スペーサ部材１は、枠状部１Ｃの上面（Ｚ１側の面）とカバー部材４の天井部４Ｂの下面（Ｚ２側の面）とが接するように、カバー部材４の内部に配置される。本実施形態では、スペーサ部材１の枠状部１Ｃは、接着剤によってカバー部材４の天井部４Ｂに接着固定される。 Specifically, the spacer member 1 is placed inside the cover member 4 so that the upper surface (Z1 side surface) of the frame-shaped portion 1C and the lower surface (Z2 side surface) of the ceiling portion 4B of the cover member 4 are in contact with each other. placed. In this embodiment, the frame-shaped portion 1C of the spacer member 1 is adhered and fixed to the ceiling portion 4B of the cover member 4 with an adhesive.

より具体的には、第１突出部１Ｐ１及び第２突出部１Ｐ２は、図１４Ｃに示すように、第２側板部４Ａ２と対向するように構成されている。第３突出部１Ｐ３及び第４突出部１Ｐ４も、図１４Ｃでは不可視であるが、第１側板部４Ａ１と対向するように構成されている。 More specifically, the first projecting portion 1P1 and the second projecting portion 1P2 are configured to face the second side plate portion 4A2 as shown in FIG. 14C. The third projecting portion 1P3 and the fourth projecting portion 1P4 are also configured to face the first side plate portion 4A1, although they are not visible in FIG. 14C.

その後、上側板ばね１６は、図１５Ａに示すように逆さまにされた状態で、カバー部材４の内部に嵌め込まれる。具体的には、上側板ばね１６は、桟部１６ｒの上面（Ｚ１側の面）とスペーサ部材１の枠状部１Ｃの下面（Ｚ２側の面）とが接するように、カバー部材４の内部に配置される。本実施形態では、上側板ばね１６の外側部分１６ｅは、接着剤によって枠状部１Ｃに接着固定される。 Thereafter, the upper leaf spring 16 is fitted inside the cover member 4 while being turned upside down as shown in FIG. 15A. Specifically, the upper leaf spring 16 is arranged inside the cover member 4 so that the upper surface (the surface on the Z1 side) of the crosspiece 16r and the lower surface (the surface on the Z2 side) of the frame-shaped portion 1C of the spacer member 1 are in contact with each other. placed in In this embodiment, the outer portion 16e of the upper leaf spring 16 is adhesively fixed to the frame portion 1C with an adhesive.

その後、第１側板部４Ａ１及び第２側板部４Ａ２のそれぞれの内壁には接着剤ＡＤが塗布される。具体的には、第２側板部４Ａ２の内壁には、図１５Ａに示すように、第２磁界発生部材５Ｂと第２側板部４Ａ２の内壁とを接着固定するための接着剤ＡＤが塗布される。第１側板部４Ａ１の内壁にも、図１５Ａでは不可視であるが、第１磁界発生部材５Ａと第１側板部４Ａ１の内壁とを接着固定するための接着剤ＡＤが塗布される。 After that, the adhesive AD is applied to the inner walls of each of the first side plate portion 4A1 and the second side plate portion 4A2. Specifically, as shown in FIG. 15A, the inner wall of the second side plate portion 4A2 is coated with an adhesive AD for adhesively fixing the second magnetic field generating member 5B and the inner wall of the second side plate portion 4A2. . Although not visible in FIG. 15A, the inner wall of the first side plate portion 4A1 is also coated with an adhesive AD for bonding and fixing the first magnetic field generating member 5A and the inner wall of the first side plate portion 4A1.

本実施形態では、接着剤ＡＤを含む接着剤は、熱硬化型接着剤である。但し、接着剤は、湿気硬化型接着剤又は紫外線硬化型接着剤等の他の接着剤であってもよい。 In this embodiment, the adhesive including the adhesive AD is a thermosetting adhesive. However, the adhesive may be other adhesives such as moisture curable adhesives or UV curable adhesives.

その後、第２磁界発生部材５Ｂの第２上側磁石５ＢＵは、図１５Ｂに示すように、カバー部材４の内部に嵌め込まれる。具体的には、第２上側磁石５ＢＵは、第２側板部４Ａ２の内壁と、第１突出部１Ｐ１及び第２突出部１Ｐ２のそれぞれとの間の空間に嵌め込まれる。本実施形態では、第１突出部１Ｐ１及び第２突出部１Ｐ２のそれぞれは、第２上側磁石５ＢＵが嵌め込まれたときに、第２上側磁石５ＢＵを第２側板部４Ａ２の内壁に押し付けることができるように構成されている。すなわち、第１突出部１Ｐ１及び第２突出部１Ｐ２のそれぞれは、第１突出部１Ｐ１、第２突出部１Ｐ２、及び第２側板部４Ａ２で区切られた空間と第２上側磁石５ＢＵとを軽嵌合させることができるように構成されている。図１５Ｂでは不可視の第１上側磁石５ＡＵについても同様である。 After that, the second upper magnet 5BU of the second magnetic field generating member 5B is fitted inside the cover member 4 as shown in FIG. 15B. Specifically, the second upper magnet 5BU is fitted in the space between the inner wall of the second side plate portion 4A2 and each of the first projecting portion 1P1 and the second projecting portion 1P2. In the present embodiment, each of the first projecting portion 1P1 and the second projecting portion 1P2 can press the second upper magnet 5BU against the inner wall of the second side plate portion 4A2 when the second upper magnet 5BU is fitted. is configured as That is, each of the first projecting portion 1P1 and the second projecting portion 1P2 lightly fits the space separated by the first projecting portion 1P1, the second projecting portion 1P2, and the second side plate portion 4A2 and the second upper magnet 5BU. configured so that they can be combined. The same applies to the first upper magnet 5AU, which is invisible in FIG. 15B.

その後、第２磁界発生部材５Ｂの第２下側磁石５ＢＬは、第２上側磁石５ＢＵと同様に、図１５Ｃに示すように、カバー部材４の内部に嵌め込まれる。具体的には、第２下側磁石５ＢＬは、第２上側磁石５ＢＵの下側（Ｚ２側）で、第２側板部４Ａ２の内壁と、第１突出部１Ｐ１及び第２突出部１Ｐ２のそれぞれとの間の空間に嵌め込まれる。本実施形態では、第１突出部１Ｐ１及び第２突出部１Ｐ２のそれぞれは、第２下側磁石５ＢＬが嵌め込まれたときに、第２下側磁石５ＢＬを第２側板部４Ａ２の内壁に押し付けることができるように構成されている。すなわち、第１突出部１Ｐ１及び第２突出部１Ｐ２のそれぞれは、第１突出部１Ｐ１、第２突出部１Ｐ２、及び第２側板部４Ａ２で区切られた空間と第２下側磁石５ＢＬとを軽嵌合させることができるように構成されている。図１５Ｃでは不可視の第１下側磁石５ＡＬについても同様である。 After that, the second lower magnet 5BL of the second magnetic field generating member 5B is fitted inside the cover member 4, as shown in FIG. 15C, similarly to the second upper magnet 5BU. Specifically, the second lower magnet 5BL is located on the lower side (Z2 side) of the second upper magnet 5BU, the inner wall of the second side plate portion 4A2, and the first projecting portion 1P1 and the second projecting portion 1P2. fit in the space between In the present embodiment, each of the first projecting portion 1P1 and the second projecting portion 1P2 presses the second lower magnet 5BL against the inner wall of the second side plate portion 4A2 when the second lower magnet 5BL is fitted. is configured so that That is, each of the first projecting portion 1P1 and the second projecting portion 1P2 lightly separates the space separated by the first projecting portion 1P1, the second projecting portion 1P2, and the second side plate portion 4A2 from the second lower magnet 5BL. It is configured so that it can be fitted. The same applies to the first lower magnet 5AL, which is invisible in FIG. 15C.

次に、図１６Ａ及び図１６Ｂを参照し、スペーサ部材１における突出部１Ｐの詳細について説明する。図１６Ａ及び図１６Ｂは、突出部１Ｐの斜視図である。具体的には、図１６Ａは、第２突出部１Ｐ２をＸ１側から見たときの第２突出部１Ｐ２の斜視図であり、図１６Ｂは、第２突出部１Ｐ２をＹ２側から見たときの第２突出部１Ｐ２の斜視図である。なお、以下の第２突出部１Ｐ２に関する説明は、第１突出部１Ｐ１、第３突出部１Ｐ３、及び第４突出部１Ｐ４のそれぞれにも同様に適用される。 Next, details of the protrusion 1P in the spacer member 1 will be described with reference to FIGS. 16A and 16B. 16A and 16B are perspective views of the protrusion 1P. Specifically, FIG. 16A is a perspective view of the second protrusion 1P2 when viewed from the X1 side, and FIG. 16B is a perspective view of the second protrusion 1P2 when viewed from the Y2 side. It is a perspective view of the 2nd protrusion part 1P2. The following description regarding the second protrusion 1P2 is similarly applied to each of the first protrusion 1P1, the third protrusion 1P3, and the fourth protrusion 1P4.

図１６Ａ及び図１６Ｂに示すように、第２突出部１Ｐ２は、第２磁界発生部材５Ｂ（図１５Ｃ参照。）の内側（Ｙ１側）の端面に対向する第１部分Ｆ１と、第２磁界発生部材５Ｂの一端側（Ｘ２側）の端面に対向する第２部分Ｆ２とを有する。そして、第２突出部１Ｐ２は、ＸＹ平面に平行な断面が略Ｌ字状となるように形成されている。 As shown in FIGS. 16A and 16B, the second projecting portion 1P2 includes a first portion F1 facing the inner (Y1 side) end surface of the second magnetic field generating member 5B (see FIG. 15C), and a second magnetic field generating member 5B (see FIG. 15C). and a second portion F2 facing the end surface of the member 5B on the one end side (X2 side). The second protruding portion 1P2 is formed so that the cross section parallel to the XY plane is substantially L-shaped.

具体的には、第１部分Ｆ１は、平行部ＰＳ及びテーパ部ＴＳを有するように構成されている。平行部ＰＳは、テーパ部ＴＳよりも第２突出部１Ｐ２の根元側に位置し、第２側板部４Ａ２と略平行になるように構成されている。テーパ部ＴＳは、平行部ＰＳよりも第２突出部１Ｐ２の先端側に位置し、第２突出部１Ｐ２の先端側に向かうにしたがってテーパ部ＴＳと第２側板部４Ａ２との間の距離が大きくなるように構成されている。この構成により、第２磁界発生部材５Ｂは、平行部ＰＳ及び第２側板部４Ａ２のそれぞれと面接触した状態で安定的に保持される。 Specifically, the first portion F1 is configured to have a parallel portion PS and a tapered portion TS. The parallel portion PS is positioned closer to the base of the second projecting portion 1P2 than the tapered portion TS, and is configured to be substantially parallel to the second side plate portion 4A2. The tapered portion TS is located closer to the distal end side of the second projecting portion 1P2 than the parallel portion PS, and the distance between the tapered portion TS and the second side plate portion 4A2 increases toward the distal end side of the second projecting portion 1P2. is configured to be With this configuration, the second magnetic field generating member 5B is stably held in surface contact with each of the parallel portion PS and the second side plate portion 4A2.

テーパ部ＴＳは、平行部ＰＳと第２側板部４Ａ２の内壁との間の空間への第２磁界発生部材５Ｂの嵌め込みを容易にする。本実施形態では、第２部分Ｆ２も、第１部分Ｆ１と同様に先端側にテーパ部を有するように構成されている。但し、テーパ部ＴＳは、省略されてもよい。 The tapered portion TS facilitates fitting of the second magnetic field generating member 5B into the space between the parallel portion PS and the inner wall of the second side plate portion 4A2. In this embodiment, the second portion F2 is also configured to have a tapered portion on the distal end side, like the first portion F1. However, the tapered portion TS may be omitted.

第２部分Ｆ２は、第２磁界発生部材５Ｂに向かって突出する凸部ＰＲを有するように構成されている。本実施形態では、凸部ＰＲは、第２突出部１Ｐ２の根元側に位置し且つ第２磁界発生部材５Ｂの側端面側へ突出するように構成されている。この構成により、凸部ＰＲは、第２磁界発生部材５Ｂの側端面と第２部分Ｆ２との間に、接着剤ＡＤを流し込むための隙間が形成されるようにする。すなわち、凸部ＰＲは、第２磁界発生部材５Ｂの側端面と第２部分Ｆ２とが密着し、接着剤ＡＤを流し込むための隙間が塞がれてしまうのを防止できる。 The second portion F2 is configured to have a convex portion PR that protrudes toward the second magnetic field generating member 5B. In this embodiment, the protrusion PR is positioned on the root side of the second protrusion 1P2 and is configured to protrude toward the side end surface of the second magnetic field generating member 5B. With this configuration, the protrusion PR forms a gap for pouring the adhesive AD between the side end face of the second magnetic field generating member 5B and the second portion F2. That is, the convex portion PR can prevent the side end surface of the second magnetic field generating member 5B and the second portion F2 from coming into close contact with each other and closing the gap for pouring the adhesive AD.

次に、図１７Ａ～図１７Ｄを参照し、突出部１Ｐと磁界発生部材５との位置関係について説明する。図１７Ａ～図１７Ｄは、上部組立体ＵＡの組立手順を説明する図である。具体的には、図１７Ａは、不図示のカバー部材４の内部に嵌め込まれたスペーサ部材１の第２突出部１Ｐ２をＹ２側から見たときの第２突出部１Ｐ２の側面図である。図１７Ｂは、不図示のカバー部材４の内部に嵌め込まれたスペーサ部材１の第２突出部１Ｐ２及び上側板ばね１６をＹ２側から見たときの各部材の側面図である。図１７Ｃは、不図示のカバー部材４の内部に嵌め込まれたスペーサ部材１の第２突出部１Ｐ２、上側板ばね１６、及び第２上側磁石５ＢＵをＹ２側から見たときの各部材の側面図である。図１７Ｄは、不図示のカバー部材４の内部に嵌め込まれたスペーサ部材１の第２突出部１Ｐ２、上側板ばね１６、第２上側磁石５ＢＵ、及び第２下側磁石５ＢＬをＹ２側から見たときの各部材の側面図である。 Next, the positional relationship between the projecting portion 1P and the magnetic field generating member 5 will be described with reference to FIGS. 17A to 17D. 17A to 17D are diagrams explaining the procedure for assembling the upper assembly UA. Specifically, FIG. 17A is a side view of the second protrusion 1P2 of the spacer member 1 fitted inside the cover member 4 (not shown) when viewed from the Y2 side. FIG. 17B is a side view of the second projecting portion 1P2 and the upper leaf spring 16 of the spacer member 1 fitted inside the cover member 4 (not shown) when viewed from the Y2 side. FIG. 17C is a side view of each member when the second projecting portion 1P2 of the spacer member 1 fitted inside the cover member 4 (not shown), the upper leaf spring 16, and the second upper magnet 5BU are viewed from the Y2 side. is. FIG. 17D shows the second protrusion 1P2, the upper leaf spring 16, the second upper magnet 5BU, and the second lower magnet 5BL of the spacer member 1 fitted inside the cover member 4 (not shown) viewed from the Y2 side. It is a side view of each member when.

本実施形態では、平行部ＰＳは、図１７Ｃに示すように、第２上側磁石５ＢＵの下面（Ｚ２側の面）よりも距離Ｄ１だけその先端が下側（Ｚ２側）に位置するように構成されている。すなわち、平行部ＰＳは、第２上側磁石５ＢＵの下側（Ｚ２側）に配置される第２下側磁石５ＢＬの内側（Ｙ１側）の端面の一部と接触するように構成されている。換言すれば、第２突出部１Ｐ２は、平行部ＰＳとテーパ部ＴＳとの境界部ＢＤが第２下側磁石５ＢＬに対向して位置するように構成されている。この構成により、第２下側磁石５ＢＬは、第２上側磁石５ＢＵと同様に、第２突出部１Ｐ２における平行部ＰＳと第２側板部４Ａ２の内壁との間にその一部が挟まれた状態で第２側板部４Ａ２の内壁に固定される。すなわち、第２突出部１Ｐ２を構成する第１部分Ｆ１の平行部ＰＳは、第２上側磁石５ＢＵばかりでなく、第２下側磁石５ＢＬをも、第２側板部４Ａ２の内壁と平行になるように保持できる。 In the present embodiment, as shown in FIG. 17C, the parallel portion PS is configured such that its tip is positioned lower (Z2 side) than the lower surface (Z2 side surface) of the second upper magnet 5BU by a distance D1. It is That is, the parallel portion PS is configured to contact a portion of the inner (Y1 side) end face of the second lower magnet 5BL arranged on the lower side (Z2 side) of the second upper magnet 5BU. In other words, the second projecting portion 1P2 is configured such that the boundary portion BD between the parallel portion PS and the tapered portion TS is located facing the second lower magnet 5BL. With this configuration, like the second upper magnet 5BU, the second lower magnet 5BL is partially sandwiched between the parallel portion PS of the second projecting portion 1P2 and the inner wall of the second side plate portion 4A2. is fixed to the inner wall of the second side plate portion 4A2. That is, the parallel portion PS of the first portion F1 constituting the second projecting portion 1P2 is arranged so that not only the second upper magnet 5BU but also the second lower magnet 5BL are parallel to the inner wall of the second side plate portion 4A2. can be held to

本実施形態では、第２突出部１Ｐ２は、図１７Ｄに示すように、第２下側磁石５ＢＬの下面（Ｚ２側の面）よりも距離Ｄ２だけその先端が上側（Ｚ１側）に位置するように構成されている。すなわち、第２突出部１Ｐ２は、光軸方向における長さが第２磁界発生部材５Ｂの長さより短くなるように構成されている。省スペースのためである。但し、第２突出部１Ｐ２は、光軸方向における長さが第２磁界発生部材５Ｂの長さ以上となるように構成されていてもよい。 In this embodiment, as shown in FIG. 17D, the second protruding portion 1P2 is arranged such that the tip thereof is located above (Z1 side) the lower surface (Z2 side surface) of the second lower magnet 5BL by a distance D2. is configured to That is, the second projecting portion 1P2 is configured such that the length in the optical axis direction is shorter than the length of the second magnetic field generating member 5B. This is for space saving. However, the second projecting portion 1P2 may be configured such that the length in the optical axis direction is equal to or longer than the length of the second magnetic field generating member 5B.

本実施形態では、凸部ＰＲは、図１７Ｃに示すように、第２部分Ｆ２のＸ１側の表面からＸ１方向に幅Ｗ１だけ突出するように構成されている。この構成により、第２磁界発生部材５ＢのＸ２側の端面と第２部分Ｆ２のＸ１側の表面との間の幅Ｗ２は、図１７Ｄに示すように、凸部ＰＲの突出量である幅Ｗ１以上となる。そのため、第２磁界発生部材５Ｂと第２突出部１Ｐ２の第２部分Ｆ２との間には、接着剤ＡＤを注ぎ込むための十分な隙間が確保される。その結果、接着剤ＡＤは、第２磁界発生部材５Ｂと第２部分Ｆ２との間に形成されたその隙間内に流れ込むことができ、第２磁界発生部材５Ｂと第２突出部１Ｐ２とを確実に接着固定できる。 In the present embodiment, as shown in FIG. 17C, the protrusion PR is configured to protrude from the X1-side surface of the second portion F2 in the X1 direction by a width W1. With this configuration, the width W2 between the X2-side end surface of the second magnetic field generating member 5B and the X1-side surface of the second portion F2 is the width W1, which is the amount of protrusion of the protrusion PR, as shown in FIG. 17D. That's it. Therefore, a sufficient gap for pouring the adhesive AD is ensured between the second magnetic field generating member 5B and the second portion F2 of the second projecting portion 1P2. As a result, the adhesive AD can flow into the gap formed between the second magnetic field generating member 5B and the second portion F2, and the second magnetic field generating member 5B and the second projecting portion 1P2 can be securely attached. Can be adhesively fixed to

次に、図１８Ａ及び図１８Ｂを参照し、上部組立体ＵＡの詳細について説明する。図１８Ａ及び図１８Ｂは、上部組立体ＵＡの底面図である。具体的には、図１８Ａは、上部組立体ＵＡの全体の底面図であり、図１８Ｂは、図１８Ａに示す部分Ｒの拡大図である。 Details of the upper assembly UA will now be described with reference to FIGS. 18A and 18B. 18A and 18B are bottom views of the upper assembly UA. Specifically, FIG. 18A is a bottom view of the entire upper assembly UA, and FIG. 18B is an enlarged view of portion R shown in FIG. 18A.

図１８Ａに示すように、磁界発生部材５は、一対の突出部１Ｐのそれぞれの第２部分Ｆ２の間に位置している。具体的には、第２磁界発生部材５Ｂは、第１突出部１Ｐ１の第２部分Ｆ２と第２突出部１Ｐ２の第２部分Ｆ２との間に位置している。第１磁界発生部材５Ａは、第３突出部１Ｐ３の第２部分Ｆ２と第４突出部１Ｐ４の第２部分Ｆ２との間に位置している。 As shown in FIG. 18A, the magnetic field generating member 5 is positioned between the second portions F2 of the pair of protrusions 1P. Specifically, the second magnetic field generating member 5B is positioned between the second portion F2 of the first protrusion 1P1 and the second portion F2 of the second protrusion 1P2. The first magnetic field generating member 5A is positioned between the second portion F2 of the third projecting portion 1P3 and the second portion F2 of the fourth projecting portion 1P4.

そして、図１８Ｂに示すように、磁界発生部材５の一端と突出部１Ｐとの間の隙間には接着剤ＡＤが配置される。具体的には、第２磁界発生部材５ＢのＸ２側の端面と第２突出部１Ｐ２を構成する第２部分Ｆ２のＸ１側の表面との間の隙間には接着剤ＡＤが流し込まれる。なお、接着剤ＡＤは、図１５Ａに示すように、第２磁界発生部材５Ｂと第２側板部４Ａ２との間にも塗布されている。この構成により、スペーサ部材１とカバー部材４と磁界発生部材５とは、接着剤ＡＤによって接着固定され、互いに相対移動不能に固定される。 Then, as shown in FIG. 18B, an adhesive AD is placed in the gap between one end of the magnetic field generating member 5 and the projecting portion 1P. Specifically, the adhesive AD is poured into the gap between the X2-side end face of the second magnetic field generating member 5B and the X1-side surface of the second portion F2 forming the second projecting portion 1P2. The adhesive AD is also applied between the second magnetic field generating member 5B and the second side plate portion 4A2, as shown in FIG. 15A. With this configuration, the spacer member 1, the cover member 4, and the magnetic field generating member 5 are adhered and fixed with the adhesive AD, and are fixed so as not to move relative to each other.

上述の通り、本実施形態に係るレンズ駆動装置１０１は、カバー部材４を含む固定側部材ＲＧと、カバー部材４内に位置してレンズ体を保持可能なレンズ保持部材２と、レンズ保持部材２に保持されたコイル３と、コイル３に対向する磁界発生部材５と、レンズ保持部材２を光軸方向へ移動可能に支持する上側板ばね１６とを備えている。上側板ばね１６は、固定側部材ＲＧに固定される固定側支持部としての外側部分１６ｅと、レンズ保持部材２に固定される可動側支持部としての内側部分１６ｉと、外側部分１６ｅと内側部分１６ｉとの間に設けられた弾性腕部１６ｇとを有する。カバー部材４は、互いに対向する一対の側板部を含む外周壁部４Ａと天井部４Ｂとを有するとともに、非磁性材料によって形成されている。固定側部材ＲＧは、カバー部材４の天井部４Ｂに一部が当接して配置されるとともに、上側板ばね１６の外側部分１６ｅが固定されるスペーサ部材１を含む。スペーサ部材１は、天井部４Ｂと対向する枠状部１Ｃと、枠状部１Ｃから下方（Ｚ２方向）へ突出し側板部と対向する突出部１Ｐとを有している。磁界発生部材５は、光軸方向と直交する方向に延在した形状をしており、突出部１Ｐと側板部との間に挟まれた状態で側板部に固定されている。この構成により、レンズ駆動装置１０１は、非磁性材料で形成されたカバー部材４に磁界発生部材５を固定する際の組み立て性を高めることができる。カバー部材４が非磁性材料で形成されている場合であっても、磁界発生部材５は、突出部１Ｐによって、突出部１Ｐと側板部との間に挟まれた状態で保持されるためである。 As described above, the lens driving device 101 according to this embodiment includes the fixed side member RG including the cover member 4, the lens holding member 2 positioned inside the cover member 4 and capable of holding the lens body, and the lens holding member 2. a magnetic field generating member 5 facing the coil 3; and an upper leaf spring 16 supporting the lens holding member 2 so as to be movable in the optical axis direction. The upper leaf spring 16 has an outer portion 16e as a fixed side support portion fixed to the fixed side member RG, an inner portion 16i as a movable side support portion fixed to the lens holding member 2, the outer portion 16e and the inner portion. 16i and an elastic arm portion 16g. The cover member 4 has an outer peripheral wall portion 4A including a pair of side plate portions facing each other and a ceiling portion 4B, and is made of a non-magnetic material. The fixed side member RG includes a spacer member 1 which is disposed so as to partially abut against the ceiling portion 4B of the cover member 4 and to which the outer portion 16e of the upper leaf spring 16 is fixed. The spacer member 1 has a frame-shaped portion 1C facing the ceiling portion 4B, and a protruding portion 1P that protrudes downward (Z2 direction) from the frame-shaped portion 1C and faces the side plate portion. The magnetic field generating member 5 has a shape extending in a direction orthogonal to the optical axis direction, and is fixed to the side plate portion while being sandwiched between the protrusion 1P and the side plate portion. With this configuration, the lens driving device 101 can improve assembly efficiency when fixing the magnetic field generating member 5 to the cover member 4 made of a non-magnetic material. This is because even if the cover member 4 is made of a non-magnetic material, the magnetic field generating member 5 is held by the protrusion 1P in a state of being sandwiched between the protrusion 1P and the side plate portion. .

突出部１Ｐは、望ましくは、磁界発生部材５の内側の面（光軸ＪＤに対向する面）に対向する第１部分Ｆ１と、磁界発生部材５の側端面に対向する第２部分Ｆ２とを有する。そして、磁界発生部材５は、一対の突出部１Ｐのそれぞれの第２部分Ｆ２の間に位置するように配置されている。例えば図１６Ａ及び図１６Ｂに示すように、第２突出部１Ｐ２は、第２磁界発生部材５Ｂの内側（Ｙ１側）の面に対向する第１部分Ｆ１と、第２磁界発生部材５Ｂの側端面（Ｘ２側の面）に対向する第２部分Ｆ２とを有する。そして、第２磁界発生部材５Ｂは、図１８Ａに示すように、第１突出部１Ｐ１の第２部分Ｆ２と第２突出部１Ｐ２の第２部分Ｆ２との間に位置するように配置されている。この構成により、第１突出部１Ｐ１と第２突出部１Ｐ２は、第２磁界発生部材５Ｂの延在方向（Ｘ軸方向）における動きを抑制できる。例えば、第１突出部１Ｐ１と第２突出部１Ｐ２は、上部組立体ＵＡの組み立ての際に、第２側板部４Ａ２に平行に保持された第２磁界発生部材５ＢがＸ軸方向に動いてしまうのを防止できる。 The projecting portion 1P desirably has a first portion F1 facing the inner surface of the magnetic field generating member 5 (surface facing the optical axis JD) and a second portion F2 facing the side end surface of the magnetic field generating member 5. have. The magnetic field generating member 5 is arranged so as to be located between the second portions F2 of the pair of projecting portions 1P. For example, as shown in FIGS. 16A and 16B, the second projecting portion 1P2 includes a first portion F1 facing the inner (Y1 side) surface of the second magnetic field generating member 5B and a side end surface of the second magnetic field generating member 5B. and a second portion F2 facing (the surface on the X2 side). Then, as shown in FIG. 18A, the second magnetic field generating member 5B is arranged so as to be positioned between the second portion F2 of the first projecting portion 1P1 and the second portion F2 of the second projecting portion 1P2. . With this configuration, the first projecting portion 1P1 and the second projecting portion 1P2 can suppress movement in the extending direction (X-axis direction) of the second magnetic field generating member 5B. For example, the first projecting portion 1P1 and the second projecting portion 1P2 cause the second magnetic field generating member 5B held parallel to the second side plate portion 4A2 to move in the X-axis direction when the upper assembly UA is assembled. can prevent

突出部１Ｐは、望ましくは、断面Ｌ字状に形成されている。例えば図１６Ａ及び図１６Ｂに示すように、第２突出部１Ｐ２は、ＸＹ平面に平行な断面が略Ｌ字状となるように、第１部分Ｆ１と第２部分Ｆ２とが一体的に形成されている。この構成により、第１部分Ｆ１と第２部分Ｆ２とを含む高い剛性を備えた突出部１Ｐが形成される。 The projecting portion 1P is desirably formed to have an L-shaped cross section. For example, as shown in FIGS. 16A and 16B, the second projecting portion 1P2 is formed by integrally forming a first portion F1 and a second portion F2 so that a cross section parallel to the XY plane has a substantially L shape. ing. With this configuration, a projecting portion 1P having high rigidity including the first portion F1 and the second portion F2 is formed.

磁界発生部材５は、望ましくは、第１磁石及び第２磁石によって構成されている。そして、第１磁石は、第２磁石よりも枠状部１Ｃに近い側に配置され、第２磁石は、第１磁石よりも枠状部１Ｃから遠い側に配置されている。例えば図１５Ｃに示すように、第２磁界発生部材５Ｂは、スペーサ部材１を構成する枠状部１Ｃに近い側（Ｚ１側）に配置される第１磁石としての第２上側磁石５ＢＵと、枠状部１Ｃから遠い側（Ｚ２側）に配置される第２磁石としての第２下側磁石５ＢＬとによって構成されている。この構成では、コイル３は、例えば図５Ｂに示すように、光軸方向に垂直なコイル軸を有するオーバル形状をなしている。そして、第１磁石及び第２磁石のそれぞれは、コイル３に対向する内面と、側板部に対向する外面とで異なる磁極を有する。また、第１磁石の内面と第２磁石の内面とは異なる磁極となっている。例えば図１に示すように、第１磁石としての第１上側磁石５ＡＵは、コイル３に対向する内面がＳ極に着磁され、第１側板部４Ａ１に対向する外面がＮ極に着磁されている。第２磁石としての第１下側磁石５ＡＬは、コイル３に対向する内面がＮ極に着磁され、第１側板部４Ａ１に対向する外面がＳ極に着磁されている。すなわち、第１磁石としての第１上側磁石５ＡＵの内面（Ｓ極）と、第２磁石としての第１下側磁石５ＡＬの内面（Ｎ極）とは異なる磁極となっている。同様に、第１磁石としての第２上側磁石５ＢＵは、コイル３に対向する内面がＳ極に着磁され、第２側板部４Ａ２に対向する外面がＮ極に着磁されている。第２磁石としての第２下側磁石５ＢＬは、コイル３に対向する内面がＮ極に着磁され、第２側板部４Ａ２に対向する外面がＳ極に着磁されている。すなわち、第１磁石としての第２上側磁石５ＢＵの内面（Ｓ極）と、第２磁石としての第２下側磁石５ＢＬの内面（Ｎ極）とは異なる磁極となっている。そして、突出部１Ｐは、先端が第１磁石と第２磁石との境界よりも第２磁石の側に位置するように構成されている。例えば図１７Ｃ及び図１７Ｄに示すように、第２突出部１Ｐ２は、その先端が、第１磁石としての第２上側磁石５ＢＵと、第２磁石としての第２下側磁石５ＢＬとの境界よりも、第２下側磁石５ＢＬの側に、すなわち、下側（Ｚ２側）に位置するように構成されている。このように、スペーサ部材１は、光軸方向に重ねられた２つの磁石で磁界発生部材５が構成されている場合であっても、突出部１Ｐと側板部との間にそれら２つの磁石を挟むことができる。 The magnetic field generating member 5 is desirably composed of a first magnet and a second magnet. The first magnet is arranged on the side closer to the frame-shaped portion 1C than the second magnet, and the second magnet is arranged on the side farther from the frame-shaped portion 1C than the first magnet. For example, as shown in FIG. 15C, the second magnetic field generating member 5B includes a second upper magnet 5BU as a first magnet arranged on the side (Z1 side) near the frame-shaped portion 1C constituting the spacer member 1, and a frame and a second lower magnet 5BL as a second magnet arranged on the far side (Z2 side) from the shaped portion 1C. In this configuration, the coil 3 has an oval shape with a coil axis perpendicular to the optical axis direction, as shown in FIG. 5B, for example. Each of the first magnet and the second magnet has different magnetic poles on the inner surface facing the coil 3 and the outer surface facing the side plate portion. Further, the inner surface of the first magnet and the inner surface of the second magnet have different magnetic poles. For example, as shown in FIG. 1, the first upper magnet 5AU as the first magnet has an inner surface facing the coil 3 magnetized with an S pole and an outer surface facing the first side plate portion 4A1 with an N pole. ing. The first lower magnet 5AL as the second magnet has an inner surface facing the coil 3 that is magnetized to the north pole, and an outer surface that faces the first side plate portion 4A1 is magnetized to the south pole. That is, the inner surface (south pole) of the first upper magnet 5AU as the first magnet and the inner surface (north pole) of the first lower magnet 5AL as the second magnet have different magnetic poles. Similarly, the second upper magnet 5BU as the first magnet has an inner surface facing the coil 3 magnetized with an S pole, and an outer surface facing the second side plate portion 4A2 with an N pole. The second lower magnet 5BL as a second magnet has an inner surface facing the coil 3 that is magnetized with an N pole, and an outer surface that faces the second side plate portion 4A2 is magnetized with an S pole. That is, the inner surface (south pole) of the second upper magnet 5BU as the first magnet and the inner surface (north pole) of the second lower magnet 5BL as the second magnet have different magnetic poles. The protruding portion 1P is configured such that the tip thereof is positioned closer to the second magnet than the boundary between the first magnet and the second magnet. For example, as shown in FIGS. 17C and 17D, the tip of the second projecting portion 1P2 is positioned further than the boundary between the second upper magnet 5BU as the first magnet and the second lower magnet 5BL as the second magnet. , on the side of the second lower magnet 5BL, that is, on the lower side (Z2 side). In this manner, even when the magnetic field generating member 5 is composed of two magnets stacked in the optical axis direction, the spacer member 1 is arranged so that the two magnets are placed between the projecting portion 1P and the side plate portion. can be sandwiched.

突出部１Ｐの第１部分Ｆ１は、望ましくは、突出部１Ｐの根元側に位置し側板部と略平行な平行部ＰＳと、平行部ＰＳよりも突出部１Ｐの先端側に位置し、突出部１Ｐの先端側に向かうにしたがって側板部との距離が大きくなるテーパ部ＴＳとを有する。そして、平行部ＰＳとテーパ部ＴＳとの境界部ＢＤは、望ましくは、第２磁石に対向して位置するように構成されている。例えば図１６Ａ及び図１６Ｂに示すように、第２突出部１Ｐ２の第１部分Ｆ１は、テーパ部ＴＳよりも第２突出部１Ｐ２の根元側に位置し第２側板部４Ａ２と略平行な平行部ＰＳと、平行部ＰＳよりも第２突出部１Ｐ２の先端側に位置し、第２突出部１Ｐ２の先端側に向かうにしたがって第２側板部４Ａ２との距離が大きくなるテーパ部ＴＳとを有する。そして、図１７Ｃ及び図１７Ｄに示すように、平行部ＰＳとテーパ部ＴＳとの境界部ＢＤが第２磁石としての第２下側磁石５ＢＬに対向して位置するように、すなわち、境界部ＢＤが距離Ｄ１だけ第１磁石としての第２上側磁石５ＢＵの下面（Ｚ２側の面）よりも下側（Ｚ２側）に位置するように構成されている。この構成により、磁界発生部材５は、組み立ての際にはテーパ部ＴＳによって案内され、突出部１Ｐと外周壁部４Ａの側板部との間の空間に容易に嵌め込まれる。そして、突出部１Ｐと側板部との間に嵌め込まれた後も、磁界発生部材５は、側板部に平行な平行部ＰＳによって支持されるため、側板部に対して平行な状態で保持される。すなわち、平行部ＰＳは、磁界発生部材５が側板部に対して斜めになってしまうのを抑制できる。そのため、磁界発生部材５を構成する第１磁石及び第２磁石は、突出部１Ｐと側板部との間の所望の位置に所望の姿勢で配置される。その結果、レンズ駆動装置１０１は、コイル３と磁界発生部材５との位置関係にズレが生じてしまうのを防止でき、ひいては、レンズ保持部材２を駆動するための推力がばらついてしまうのを防止できる。 The first portion F1 of the protrusion 1P is desirably composed of a parallel portion PS located on the base side of the protrusion 1P and substantially parallel to the side plate portion, and a portion located closer to the tip of the protrusion 1P than the parallel portion PS. It has a tapered portion TS whose distance from the side plate portion increases toward the tip side of 1P. A boundary portion BD between the parallel portion PS and the tapered portion TS is desirably arranged to face the second magnet. For example, as shown in FIGS. 16A and 16B, the first portion F1 of the second protrusion 1P2 is a parallel portion located closer to the base of the second protrusion 1P2 than the tapered portion TS and substantially parallel to the second side plate portion 4A2. and a tapered portion TS located closer to the tip of the second projecting portion 1P2 than the parallel portion PS, and the distance from the second side plate portion 4A2 increases toward the tip of the second projecting portion 1P2. Then, as shown in FIGS. 17C and 17D, the boundary portion BD between the parallel portion PS and the tapered portion TS is positioned facing the second lower magnet 5BL as the second magnet, that is, the boundary portion BD is positioned below (Z2 side) the lower surface (Z2 side surface) of the second upper magnet 5BU as the first magnet by a distance D1. With this configuration, the magnetic field generating member 5 is guided by the tapered portion TS during assembly, and is easily fitted into the space between the projecting portion 1P and the side plate portion of the outer peripheral wall portion 4A. Further, even after being fitted between the projecting portion 1P and the side plate portion, the magnetic field generating member 5 is supported by the parallel portion PS parallel to the side plate portion, so that the magnetic field generating member 5 is held parallel to the side plate portion. . That is, the parallel portion PS can prevent the magnetic field generating member 5 from being oblique with respect to the side plate portion. Therefore, the first magnet and the second magnet that constitute the magnetic field generating member 5 are arranged at desired positions and in desired postures between the projecting portion 1P and the side plate portion. As a result, the lens driving device 101 can prevent the positional relationship between the coil 3 and the magnetic field generating member 5 from being deviated, thereby preventing the thrust force for driving the lens holding member 2 from varying. can.

突出部１Ｐの第２部分Ｆ２の根元には、望ましくは、磁界発生部材５に向かって突出する凸部ＰＲが形成される。そして、凸部ＰＲの下方側（Ｚ２側）における第２部分Ｆ２と磁界発生部材５との間には接着剤ＡＤが配置される。例えば図１７Ｄに示すように、第２突出部１Ｐ２の第２部分Ｆ２の根元には、第２磁界発生部材５Ｂに向かって突出する凸部ＰＲが形成されている。そして、凸部ＰＲの下方側（Ｚ２側）における第２部分Ｆ２と第２磁界発生部材５Ｂとの間には、接着剤ＡＤが配置されている。この構成により、第２突出部１Ｐ２の第２部分Ｆ２と第２磁界発生部材５Ｂとの間には、少なくとも凸部ＰＲの幅Ｗ１よりも広い幅Ｗ２を有する隙間が形成される。そのため、接着剤ＡＤは、第２部分Ｆ２と第２磁界発生部材５Ｂとの間の隙間に確実に流れ込むことができる。その結果、第２突出部１Ｐ２と第２磁界発生部材５Ｂとの間の接着強度は確実に高められる。 A convex portion PR that protrudes toward the magnetic field generating member 5 is preferably formed at the base of the second portion F2 of the protruding portion 1P. An adhesive AD is arranged between the second portion F2 and the magnetic field generating member 5 on the lower side (Z2 side) of the convex portion PR. For example, as shown in FIG. 17D, a convex portion PR that protrudes toward the second magnetic field generating member 5B is formed at the root of the second portion F2 of the second protruding portion 1P2. An adhesive AD is arranged between the second portion F2 on the lower side (Z2 side) of the convex portion PR and the second magnetic field generating member 5B. With this configuration, a gap having a width W2 that is at least wider than the width W1 of the protrusion PR is formed between the second portion F2 of the second protrusion 1P2 and the second magnetic field generating member 5B. Therefore, the adhesive AD can reliably flow into the gap between the second portion F2 and the second magnetic field generating member 5B. As a result, the bonding strength between the second projecting portion 1P2 and the second magnetic field generating member 5B is reliably increased.

以上、本発明の好ましい実施形態について詳説した。しかしながら、本発明は、上述した実施形態に限定されることはない。上述した実施形態は、本発明の範囲を逸脱することなしに、種々の変形及び置換等が適用され得る。また、上述の実施形態を参照して説明された特徴のそれぞれは、技術的に矛盾しない限り、適宜に組み合わされてもよい。 The preferred embodiments of the present invention have been described in detail above. However, the invention is not limited to the embodiments described above. Various modifications and replacements may be applied to the above-described embodiments without departing from the scope of the present invention. Also, each of the features described with reference to the above-described embodiments may be combined as appropriate as long as they are not technically inconsistent.

例えば、上記実施形態では、コイル３は、レンズ保持部材２の４つの側面のうちの２つのそれぞれに保持される、光軸方向に垂直なコイル軸を有する２つの小判形（オーバル形状）のコイルで構成されている。しかしながら、本発明はこの構成に限定されない。コイル３は、光軸方向に延びるコイル軸を有するようにレンズ保持部材２の周囲に巻かれた環状のコイルであってもよい。この場合、磁界発生部材５は、外周壁部４Ａを構成する４つの側板部のそれぞれに対向するように配置される４つの二極磁石で構成されていてもよい。 For example, in the above embodiment, the coils 3 are two oval-shaped coils having coil axes perpendicular to the optical axis direction, which are held on two of the four side surfaces of the lens holding member 2 respectively. consists of However, the invention is not limited to this configuration. The coil 3 may be an annular coil wound around the lens holding member 2 so as to have a coil axis extending in the optical axis direction. In this case, the magnetic field generating member 5 may be composed of four dipole magnets arranged so as to face each of the four side plate portions forming the outer peripheral wall portion 4A.

また、上記実施形態では、第１磁界発生部材５Ａは、光軸ＪＤに垂直な方向に着磁された、第１上側磁石５ＡＵと第１下側磁石５ＡＬとの組み合わせで構成されているが、光軸方向に沿って着磁された１つの二極磁石で構成されていてもよい。この場合、この二極磁石の上側部分の磁極は、第１上側磁石５ＡＵの内側部分の磁極に対応し、その下側部分の磁極は第１下側磁石５ＡＬの内側部分の磁極に対応する。第２磁界発生部材５Ｂについても同様である。 In the above embodiment, the first magnetic field generating member 5A is composed of a combination of the first upper magnet 5AU and the first lower magnet 5AL magnetized in the direction perpendicular to the optical axis JD. It may be composed of one dipole magnet magnetized along the optical axis direction. In this case, the poles of the upper part of this dipole magnet correspond to the poles of the inner part of the first upper magnet 5AU and the poles of its lower part correspond to the poles of the inner part of the first lower magnet 5AL. The same applies to the second magnetic field generating member 5B.

また、上記実施形態では、磁界発生部材５は、略直方体形状をなし、外周壁部４Ａを構成する側板部に対向するように配置されているが、底面が台形の角柱形状をなし、外周壁部４Ａの四隅に対向するように配置されていてもよい。 In the above-described embodiment, the magnetic field generating member 5 has a substantially rectangular parallelepiped shape and is arranged so as to face the side plate portion that constitutes the outer peripheral wall portion 4A. You may arrange|position so that the four corners of 4 A of parts may be opposed.

また、上記実施形態では、スペーサ部材１における突出部１Ｐは、第１部分Ｆ１と第２部分Ｆ２とを一体的に含むように構成されている。しかしながら、第１部分Ｆ１と第２部分Ｆ２とは、互いに別々に枠状部１Ｃから延び、且つ、互いに間隔を空けて配置されるように構成されていてもよい。この場合、第２部分Ｆ２は、省略されてもよい。すなわち、磁界発生部材５は、１又は複数の第１部分Ｆ１が磁界発生部材５を外周壁部４Ａにおける側板部の１つに押し付ける力によって、１又は複数の第１部分Ｆ１とその側板部の１つとの間で保持されていてもよい。このように、磁界発生部材５の１つを保持するための第１部分Ｆ１の数は、１つであってもよく、３つ以上であってもよい。１つの第１部分Ｆ１で１つの磁界発生部材５を保持する場合、第１部分Ｆ１は、磁界発生部材５の端部ではなく、磁界発生部材５の中央部と接触するように配置されていてもよい。 In the above embodiment, the protruding portion 1P of the spacer member 1 is configured to integrally include the first portion F1 and the second portion F2. However, the first portion F1 and the second portion F2 may be configured to extend from the frame-shaped portion 1C separately from each other and to be arranged at intervals from each other. In this case, the second portion F2 may be omitted. That is, the magnetic field generating member 5 is configured such that the one or more first portions F1 and the side plate portions of the outer peripheral wall portion 4A are separated by the force of the one or more first portions F1 pressing the magnetic field generating member 5 against one of the side plate portions of the outer peripheral wall portion 4A. It may be held between one and the other. Thus, the number of first portions F1 for holding one of the magnetic field generating members 5 may be one, or three or more. When one magnetic field generating member 5 is held by one first portion F1, the first portion F1 is arranged so as to contact the central portion of the magnetic field generating member 5 instead of the end portion of the magnetic field generating member 5. good too.

本願は、２０１９年７月２６日に出願した日本国特許出願２０１９－１３８２６７号に基づく優先権を主張するものであり、この日本国特許出願の全内容を本願に参照により援用する。 This application claims priority based on Japanese Patent Application No. 2019-138267 filed on July 26, 2019, and the entire contents of this Japanese Patent Application are incorporated herein by reference.

１・・・スペーサ部材 １Ｃ・・・枠状部 １Ｃ１・・・第１延在部 １Ｃ２・・・第２延在部 １Ｃ３・・・第３延在部 １Ｃ４・・・第４延在部 １Ｐ・・・突出部 第１突出部・・・１Ｐ１ 第２突出部・・・１Ｐ２ 第３突出部・・・１Ｐ３ 第４突出部・・・１Ｐ４ ２・・・レンズ保持部材 ２ｔ・・・突設部 ３・・・コイル ３Ａ・・・第１コイル ３Ｂ・・・第２コイル ３Ｃ・・・連結部 ４・・・カバー部材 ４Ａ・・・外周壁部 ４Ａ１・・・第１側板部 ４Ａ２・・・第２側板部 ４Ａ３・・・第３側板部 ４Ａ４・・・第４側板部 ４Ｂ・・・天井部 ４ｓ・・・収納部 ５・・・磁界発生部材 ５Ａ・・・第１磁界発生部材 ５ＡＵ・・・第１上側磁石 ５ＡＬ・・・第１下側磁石 ５Ｂ・・・第２磁界発生部材 ５ＢＵ・・・第２上側磁石 ５ＢＬ・・・第２下側磁石 ６・・・板ばね ７・・・金属部材 ７Ａ・・・第１金属部材 ７ＡＣ・・・接続部 ７ＡＴ・・・端子部 ７Ｂ・・・第２金属部材 ７ＢＣ・・・接続部 ７ＢＴ・・・端子部 ７Ｃ・・・第３金属部材 ７Ｃ１～７Ｃ４・・・端部 １２・・・筒状部 １２ｄ・・・台座部 １２ｄｈ・・・窪み １２ｐ・・・巻き付け突起 １２ｐＡ・・・第１巻き付け突起 １２ｐＢ・・・第２巻き付け突起 １３・・・巻回部 １６・・・上側板ばね １６ｂ・・・角部分 １６ｅ・・・外側部分 １６ｇ・・・弾性腕部 １６ｉ・・・内側部分 １６ｒ・・・桟部 １８・・・ベース部材 １８ｋ・・・開口 １８ｔ・・・突設部 ２６、２６Ａ、２６Ｂ・・・下側板ばね ２６ｃ・・・内側接合部分 ２６ｄ・・・外側接合部分 ２６ｅ・・・外側部分 ２６ｇ・・・弾性腕部 ２６ｈ・・・接続板部 ２６ｉ・・・内側部分 ２６ｐ・・・第１連結部 ２６ｑ・・・第２連結部 ３３・・・延在部 ３３Ａ・・・第１延在部 ３３Ｂ・・・第２延在部 ３３ｃ・・・第１対向部 ３３ｋ・・・第２対向部 ３３ｍ・・・巻き付け部 ７２・・・保持部 ７２Ａ・・・第１保持部 ７２Ｂ・・・第２保持部 ８２・・・突堤部 ８２ｓ・・・収容部 ８２ｕ・・・内側壁部 ８２ｖ・・・外側壁部 ８２ｗ・・・側壁部 ８２ｚ・・・開放部 １０１・・・レンズ駆動装置 ＡＤ・・・接着剤 ＢＤ・・・境界部 ＣＡ・・・導電性接着剤 Ｆ１・・・第１部分 Ｆ２・・・第２部分 ＪＤ・・・光軸 ＭＫ・・・駆動機構 ＰＲ・・・凸部 ＰＳ・・・平行部 ＲＧ・・・固定側部材 ＴＳ・・・テーパ部 ＵＡ・・・上部組立体 Reference Signs List 1 spacer member 1C frame portion 1C1 first extension portion 1C2 second extension portion 1C3 third extension portion 1C4 fourth extension portion 1P Projecting portion First projecting portion 1P1 Second projecting portion 1P2 Third projecting portion 1P3 Fourth projecting portion 1P4 2 Lens holding member 2t Projecting Part 3... Coil 3A... First coil 3B... Second coil 3C... Connection part 4... Cover member 4A... Outer peripheral wall part 4A1... First side plate part 4A2... Second side plate portion 4A3 Third side plate portion 4A4 Fourth side plate portion 4B Ceiling portion 4s Storage portion 5 Magnetic field generating member 5A First magnetic field generating member 5AU First upper magnet 5AL First lower magnet 5B Second magnetic field generating member 5BU Second upper magnet 5BL Second lower magnet 6 Leaf spring 7. Metal member 7A First metal member 7AC Connection portion 7AT Terminal portion 7B Second metal member 7BC Connection portion 7BT Terminal portion 7C Third Metal member 7C1 to 7C4... End 12... Cylindrical part 12d... Base part 12dh... Recess 12p... Winding projection 12pA... First winding projection 12pB... Second winding projection REFERENCE SIGNS LIST 13 Winding portion 16 Upper leaf spring 16b Corner portion 16e Outer portion 16g Elastic arm portion 16i Inner portion 16r Crosspiece 18 Base Member 18k Opening 18t Protrusions 26, 26A, 26B Lower leaf spring 26c Inner joint portion 26d Outer joint portion 26e Outer portion 26g Elastic arm Part 26h... Connection plate part 26i... Inside part 26p... First connecting part 26q... Second connecting part 33... Extension part 33A... First extension part 33B... Second extending portion 33c First facing portion 33k Second facing portion 33m Winding portion 72 Holding portion 72A First holding portion 72B Second holding portion 82 Pier portion 82s Accommodating portion 82u Inner wall portion 82v Outer wall portion 82w Side wall portion 82z Opening portion 101 Lens driving device AD Adhesive BD... Boundary portion CA... Conductive adhesive F1... First part F2... Second part JD... Optical axis MK... Drive mechanism PR... Convex part PS... Parallel part RG: Fixed side member TS: Tapered part UA: Upper assembly

Claims (8)

カバー部材を含む固定側部材と、
前記カバー部材内に位置してレンズ体を保持可能なレンズ保持部材と、
前記レンズ保持部材に保持されたコイルと、
前記コイルに対向する磁界発生部材と、
前記固定側部材に固定される固定側支持部と、前記レンズ保持部材に固定される可動側支持部と、前記固定側支持部と前記可動側支持部との間に設けられた弾性腕部とを有し、前記レンズ保持部材を光軸方向へ移動可能に支持する板ばねと、を備えたレンズ駆動装置において、
前記カバー部材は、互いに対向する一対の側板部を含む外周壁部と天井部とを有するとともに、非磁性材料によって形成されており、
前記固定側部材は、前記カバー部材に一部が当接して配置されるとともに、前記板ばねの前記固定側支持部が固定されるスペーサ部材を含み、
前記スペーサ部材は、前記天井部と対向する枠状部と、前記枠状部から下方へ突出し前記側板部と対向する突出部とを有し、
前記突出部は、前記磁界発生部材の延在方向に離間して二つ設けられており、
前記磁界発生部材は、光軸方向と直交する方向に延在した形状をしており、前記磁界発生部材が二つの前記突出部と前記側板部との間に挟まれた状態で、前記側板部と前記磁界発生部材との間に設けられた接着剤によって、前記側板部に固定されていることを特徴とするレンズ駆動装置。 a stationary member including a cover member;
a lens holding member positioned within the cover member and capable of holding the lens body;
a coil held by the lens holding member;
a magnetic field generating member facing the coil;
a fixed-side support fixed to the fixed-side member; a movable-side support fixed to the lens holding member; and an elastic arm provided between the fixed-side support and the movable-side support. and a leaf spring that supports the lens holding member movably in the optical axis direction,
The cover member has an outer peripheral wall portion including a pair of side plate portions facing each other and a ceiling portion, and is formed of a non-magnetic material,
The fixed-side member includes a spacer member that is arranged so that a part of the fixed-side member abuts against the cover member, and to which the fixed-side support portion of the leaf spring is fixed,
The spacer member has a frame-shaped portion facing the ceiling portion, and a projecting portion that projects downward from the frame-shaped portion and faces the side plate portion,
Two protrusions are provided spaced apart in the extending direction of the magnetic field generating member,
The magnetic field generating member has a shape extending in a direction orthogonal to the optical axis direction, and the magnetic field generating member is sandwiched between the two projecting portions and the side plate portion. and the magnetic field generating member, fixed to the side plate portion by an adhesive provided between the magnetic field generating member. カバー部材を含む固定側部材と、
前記カバー部材内に位置してレンズ体を保持可能なレンズ保持部材と、
前記レンズ保持部材に保持されたコイルと、
前記コイルに対向する磁界発生部材と、
前記固定側部材に固定される固定側支持部と、前記レンズ保持部材に固定される可動側支持部と、前記固定側支持部と前記可動側支持部との間に設けられた弾性腕部とを有し、前記レンズ保持部材を光軸方向へ移動可能に支持する板ばねと、を備えたレンズ駆動装置において、
前記カバー部材は、互いに対向する一対の側板部を含む外周壁部と天井部とを有するとともに、非磁性材料によって形成されており、
前記固定側部材は、前記カバー部材に一部が当接して配置されるとともに、前記板ばねの前記固定側支持部が固定されるスペーサ部材を含み、
前記スペーサ部材は、前記天井部と対向する枠状部と、前記枠状部から下方へ突出し前記側板部と対向する突出部とを有し、
前記磁界発生部材は、光軸方向と直交する方向に延在した形状をしており、前記磁界発生部材が前記突出部と前記側板部との間に挟まれた状態で前記側板部に固定されており、
前記突出部は、前記磁界発生部材の内側の面に対向する第１部分と、前記磁界発生部材の側端面に対向する第２部分とを有し、
前記磁界発生部材は、一対の前記突出部のそれぞれの第２部分の間に位置するように配置されていることを特徴とするレンズ駆動装置。 a stationary member including a cover member;
a lens holding member positioned within the cover member and capable of holding the lens body;
a coil held by the lens holding member;
a magnetic field generating member facing the coil;
a fixed-side support fixed to the fixed-side member; a movable-side support fixed to the lens holding member; and an elastic arm provided between the fixed-side support and the movable-side support. and a leaf spring that supports the lens holding member movably in the optical axis direction,
The cover member has an outer peripheral wall portion including a pair of side plate portions facing each other and a ceiling portion, and is formed of a non-magnetic material,
The fixed-side member includes a spacer member that is arranged so that a part of the fixed-side member abuts against the cover member, and to which the fixed-side support portion of the leaf spring is fixed,
The spacer member has a frame-shaped portion facing the ceiling portion, and a projecting portion that projects downward from the frame-shaped portion and faces the side plate portion,
The magnetic field generating member has a shape extending in a direction orthogonal to the optical axis direction, and is fixed to the side plate portion in a state in which the magnetic field generating member is sandwiched between the projecting portion and the side plate portion. and
The projecting portion has a first portion facing the inner surface of the magnetic field generating member and a second portion facing the side end surface of the magnetic field generating member,
The lens driving device, wherein the magnetic field generating member is arranged so as to be positioned between the second portions of the pair of protrusions. 前記突出部は、断面Ｌ字状に形成されている、
請求項２に記載のレンズ駆動装置。 The projecting portion is formed to have an L-shaped cross section,
The lens driving device according to claim 2. 前記磁界発生部材は、第１磁石及び第２磁石によって構成されており、
前記第１磁石は、前記枠状部に近い側に配置され、前記第２磁石は、前記枠状部から遠い側に配置され、
前記コイルは、光軸方向に垂直なコイル軸を有する形状をなし、
前記第１磁石及び前記第２磁石のそれぞれは、前記コイルに対向する内面と、前記側板部に対向する外面とで異なる磁極を有し、
前記第１磁石の前記内面と前記第２磁石の前記内面とは異なる磁極となっており、
前記突出部は、先端が前記第１磁石と前記第２磁石との境界よりも前記第２磁石の側に位置するように構成されている、
請求項２又は３に記載のレンズ駆動装置。 The magnetic field generating member is composed of a first magnet and a second magnet,
The first magnet is arranged on the side closer to the frame-shaped portion, the second magnet is arranged on the side farther from the frame-shaped portion,
The coil has a shape with a coil axis perpendicular to the optical axis direction,
each of the first magnet and the second magnet has a different magnetic pole between an inner surface facing the coil and an outer surface facing the side plate;
The inner surface of the first magnet and the inner surface of the second magnet have different magnetic poles,
The projecting portion is configured such that a tip thereof is positioned closer to the second magnet than a boundary between the first magnet and the second magnet,
The lens driving device according to claim 2 or 3. 前記第１部分は、
前記突出部の根元側に位置し前記側板部と略平行な平行部と、
前記平行部よりも前記突出部の先端側に位置し、前記突出部の先端側に向かうにしたがって前記側板部との距離が大きくなるテーパ部と、を有し、
前記平行部と前記テーパ部との境界部が前記第２磁石に対向して位置するように構成されている、
請求項４に記載のレンズ駆動装置。 The first portion comprises
a parallel portion located on the root side of the projecting portion and substantially parallel to the side plate portion;
a tapered portion located closer to the tip side of the projecting portion than the parallel portion, and the distance from the side plate portion increases toward the tip side of the projecting portion;
A boundary portion between the parallel portion and the tapered portion is configured to face the second magnet,
The lens driving device according to claim 4. 前記第２部分の根元には、前記磁界発生部材に向かって突出する凸部が形成され、
前記凸部の下方側における前記第２部分と前記磁界発生部材との間には、接着剤が配置されている、
請求項２乃至５の何れかに記載のレンズ駆動装置。 A convex portion projecting toward the magnetic field generating member is formed at the base of the second portion,
an adhesive is disposed between the second portion and the magnetic field generating member on the lower side of the convex portion;
The lens driving device according to any one of claims 2 to 5. 前記磁界発生部材は、略直方体形状をなし、前記側板部と対向するように配置されている、
請求項１乃至６の何れかに記載のレンズ駆動装置。 The magnetic field generating member has a substantially rectangular parallelepiped shape and is arranged so as to face the side plate portion.
The lens driving device according to any one of claims 1 to 6. 請求項１乃至７の何れかに記載のレンズ駆動装置と、
前記レンズ体と、
前記レンズ体に対向する撮像素子と、を有する、
カメラモジュール。 a lens driving device according to any one of claims 1 to 7;
the lens body;
and an imaging element facing the lens body,
The camera module.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008186000A (en) 2007-01-31 2008-08-14 Sharp Corp Focus adjustment actuator, imaging module, and imaging unit
JP2015146022A (en) 2009-08-21 2015-08-13 ミツミ電機株式会社 Lens drive device, camera module, and camera

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4617759B2 (en) * 2004-07-30 2011-01-26 ミツミ電機株式会社 Autofocus actuator
CN102016709B (en) * 2008-04-30 2014-04-09 日本电产三协株式会社 Optical unit with shake correcting function and photographic optical device
JP5846346B2 (en) * 2009-08-21 2016-01-20 ミツミ電機株式会社 Camera shake correction device
JP5417127B2 (en) * 2009-11-18 2014-02-12 日本電産サンキョー株式会社 Lens drive device
JP5606819B2 (en) * 2010-08-03 2014-10-15 シャープ株式会社 The camera module
WO2013121788A1 (en) * 2012-02-14 2013-08-22 ミツミ電機株式会社 Lens driving device and camera
JP2017067908A (en) * 2015-09-29 2017-04-06 アルプス電気株式会社 Lens drive device
JP2017161609A (en) * 2016-03-07 2017-09-14 ミツミ電機株式会社 Les drive device, camera module, and camera-loaded device
CN207081926U (en) * 2017-07-12 2018-03-09 惠州大亚湾三美达光学技术有限公司 A kind of lens driver with stabilization function
CN207571364U (en) * 2017-11-30 2018-07-03 阿尔卑斯（中国）有限公司 Lens driver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008186000A (en) 2007-01-31 2008-08-14 Sharp Corp Focus adjustment actuator, imaging module, and imaging unit
JP2015146022A (en) 2009-08-21 2015-08-13 ミツミ電機株式会社 Lens drive device, camera module, and camera

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