CN105629424B - Lens driver - Google Patents

Lens driver Download PDF

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Publication number
CN105629424B
CN105629424B CN201610099956.0A CN201610099956A CN105629424B CN 105629424 B CN105629424 B CN 105629424B CN 201610099956 A CN201610099956 A CN 201610099956A CN 105629424 B CN105629424 B CN 105629424B
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CN
China
Prior art keywords
yoke ring
reed
magnet yoke
bottom wall
ring
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Application number
CN201610099956.0A
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Chinese (zh)
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CN105629424A (en
Inventor
王在伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN AWA SEIMITSU ELECTRIC Co.,Ltd.
Original Assignee
Mianyang Anhe Optoelectronics Technology Co Ltd
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Application filed by Mianyang Anhe Optoelectronics Technology Co Ltd filed Critical Mianyang Anhe Optoelectronics Technology Co Ltd
Priority to CN201610099956.0A priority Critical patent/CN105629424B/en
Publication of CN105629424A publication Critical patent/CN105629424A/en
Priority to PCT/CN2016/103031 priority patent/WO2017143793A1/en
Application granted granted Critical
Publication of CN105629424B publication Critical patent/CN105629424B/en
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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
    • 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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification

Abstract

Present invention is disclosed a kind of lens driver, including the first magnet yoke ring, gasket, the first reed, lens carrier, magnetite, the second reed, the second magnet yoke ring；Wherein, stretched into camera lens carrier combination bore edges and position with the electromagnetic coupling of lens carrier the corresponding quantity of slot it is equal be symmetrically equipped with the second magnet yoke ring yoke valve, the second magnet yoke ring yoke valve forms magnetic coupling yoke valve and rectangular towards the yoke ring cavity vertical protrusion, the second magnet yoke ring yoke valve contactlessly extend into electromagnetic coupling stretch into slot and its couple planar towards magnetite magnetic pole coupling surface；First magnet yoke ring and the second magnet yoke ring are fitted into placement and form resultant field on corresponding coil corresponding position with magnetite.The present invention can ensure that the gas field in each air gap is uniform to greatest extent.

Description

Lens driver
Technical field
The invention belongs to miniature line motor technical fields, and in particular to a kind of lens driver, using being not limited to High pixel minitype digital camera with automatic focusing function.
Background technology
The principle of aforementioned lens driver derives from the operation principle of loudspeaker, that is, coil is generated in permanent magnet In magnetic field, when in coil by electric current it is coil-induced to electromagnetic force and displacement, and the displacement of coil drives sound disk displacement (to shake It is dynamic).In lens driver, the displacement of coil drives the lens carrier for being mounted with lens to be subjected to displacement, and makes lens are front and rear to move It moves and achievees the purpose that focusing.
In recent years, with the development of the CMOS technology of the imaging sensor used in miniature camera, high pixel and superelevation picture Element imaging sensor obtained it is commonly used, in order to ensure the miniature camera of high pixel and very-high solution obtain fine definition Image, so as to proposing more harsh requirement to the dynamic optical axis degree precision of lens driver, lens driver Dynamic optical axis degree be lens carrier central axis (can be considered consistent with the optical axis of lens, so, alternatively referred to as lens drive The optical axis of dynamic device) variation of the angle that is formed with the vertical line of image sensor plane during exercise.
About the technical information of lens driver, it is no lack of in published Chinese patent literature and is seen in, passes through improvement The electrical cooperation effect of magnetite and magnet yoke ring, and ensure that the magnetic line of force in the magnetic field that magnetite generates is uniformly distributed and using makes coil The electromagnetic induction power obtained in the range of effective length is significantly increased to obtain ideal drive characteristic, and reduce power drives Power consumption is conducive to easily and quickly install and use raising efficiency of assembling, is beneficial to dopants penetration is fully avoided to enter to inside And guarantee image quality is used, have to improve lens axis degree and have the electromagnetic radiation for being good at that coil is avoided to generate to periphery The lens driver that part has an impact.But there are following shortcoming：First, pass through the description to the patent application It understands and understands that one group magnetite and the first magnet yoke ring and the second magnet yoke ring coordinate, bent magnetic field is formed in magnet yoke ring intracavitary, though Right Distribution of Magnetic Field uniformly increases coil effective length and obtains higher electromagnetic induction power, still, because magnet yoke ring intracavitary does not have There is the yoke valve for being positioned proximate to magnetite, magnetic gap is big, common knowledge, and magnetic resistance can be multiplied and magnetic flux is caused to decline at double Subtract, so, and the effectiveness of coil electromagnetic induction can be limited；Second, due to the magnetic field of bending intensity and uniformity by magnetite and The physical size of first magnet yoke ring and the second magnet yoke ring influences greatly, once faint deviation, Jiu Huiyin occur for its physical size Larger deviation occurs for magnetizing field intensity homogeneity, meanwhile, in air gap, the power of intensity is adjusted the distance extremely in the magnetic field of bending Once faint deviation occurs in assembling for the center of coil, (four are generally, and symmetrical with one group of magnetite for sensitivity It is arranged in the four corners position of the first magnet yoke ring inner cavity) symmetry of four component of the electromagnetic induction power of coupling can be serious bad Change, eventually leading to the optical axis degree generation of camera lens carrier transfinites deviation and deteriorate；Third, lens driving mode, is (right from zero distance Coke+∞ positions) to maximum distance (focusing proximal most position), every time focusing driving will total travel driving, so, focusing time It is long.In view of above-mentioned prior art, it is necessary to be subject to rational modification, for this purpose, the applicant has made beneficial design, will be detailed below being situated between The technical solution to continue generates in this background.
Invention content
The task of the present invention is to provide a kind of lens driver, first, with the first magnet yoke ring and the second magnet yoke ring Double yoke coupled magnetic fields, can ensure that the gas field in each air gap is uniform one between the second magnet yoke ring and each magnetite to greatest extent Cause, the first magnet yoke ring auxiliarily picks up the part leakage field of each magnetite to enhance the magnetic flux in magnetic field, contribute to improve magnetite with The electrical cooperation effect of magnet yoke ring causes coil to obtain maximum electromagnetic induction efficiency in the resultant field and obtains highly consistent The electromagnetic induction power of size, so as to reach the desired result for obtaining highly dynamic optical axis degree precision；Second, pass through to having One reed and the second reed are exerted by the adjustment in the size direction of the starting force in lens carrier, make lens carrier in stroke model The initial position enclosed on interior optical axis direction can be on any position, and bi-directional drive lens carrier can make the focusing of lens carrier It is that shift length reduces and obtains rapid focus as a result, the dynamic optical axis degree precision of lens carrier can be promoted simultaneously, be one Meet the ideal lens driving apparatus of very-high solution camera；Third, optimizing the mechanical structure of lens driver, more have Raising efficiency of assembling is used conducive to easily and quickly installing and more adapting to implementation Automated assembly assembly line, is relatively beneficial to Dopants penetration is fully avoided to enter to inside and use guarantee image quality, is more advantageous to improving the lens driving dress of lens axis degree It puts.
The task of the present invention is in this way to complete.
A kind of lens driver, including the first magnet yoke ring, gasket, the first reed, lens carrier, magnetite, the second reed, Second magnet yoke ring；Wherein, second magnet yoke ring has the second magnet yoke ring bottom wall, the second magnet yoke ring bottom wall and first magnetic First magnet yoke ring bottom wall of yoke ring is parallel, is offered and camera lens carrier combination at the position placed in the middle of the second magnet yoke ring bottom wall Camera lens carrier combination hole is simultaneously communicated with yoke ring cavity, in the camera lens carrier combination bore edges and the electromagnetism of position and lens carrier Coupling stretch into the corresponding quantity of slot it is equal be symmetrically equipped with the second magnet yoke ring yoke valve, the second magnet yoke ring yoke valve is towards institute It states yoke ring cavity vertical protrusion and forms magnetic coupling yoke valve and rectangular, which contactlessly extend into electromagnetism Coupling stretch into slot and its couple planar towards magnetite magnetic pole coupling surface；First magnet yoke ring and second magnet yoke ring are fitted into Placement forms resultant field with the magnetite on corresponding coil corresponding position.
More specifically, the first reed petals frame and the second reed petals frame of the first reed are disposed in the gasket The first of camera lens carrier of the second plane of gasket with disposing the first reed petals carrier supported wing and the second reed petals carrier supported wing The plane of support platform be staggered and the distance on the basis of the first magnet yoke ring inside bottom wall face described in the second plane of gasket distance More than the distance of the plane of first support platform, form the first reed and give camera lens carrier backwards to the first magnet yoke ring bottom wall Initial thrust.
Further, the second reed carrier supported ring parallel and towards the plane and load of aforementioned first magnet yoke ring bottom wall The plane patch of second support platform of body is touched, and is superimposed upon second the first plane of reed of the first plane of magnetite and is placed in second Second reed support plane of a loop for supportting platform forms the of the lens carrier described in distance on the basis of the first magnet yoke ring bottom wall The distance of two support platforms is more than the difference of height of the distance of the first plane of magnetite, thus generates and forms the second reed initially to camera lens Carrier applies the thrust towards the first magnet yoke ring bottom wall.
Further, the first reed initially applies camera lens carrier the power backwards to the first magnet yoke ring bottom wall, and the second spring Piece initially applies camera lens carrier the power towards the first magnet yoke ring bottom wall, and the first reed and the second reed are initially applied to mirror respectively The direction of power on head carrier is opposite each other, and keep the work of the first reed and the second reed when moving in camera lens carrier It is firmly opposite each other.In the specific embodiment of the present invention, first magnet yoke ring, gabarit is four side column bodies, this One magnet yoke ring composition has the first magnet yoke ring bottom wall and yoke ring cavity side wall and the first magnet yoke ring bottom wall and yoke ring cavity side wall structure Into inner space yoke ring cavity, the central part of the first magnet yoke ring bottom wall offer communicated with yoke ring cavity it is circular Mirror carrier combination hole；The yoke ring cavity is four side cylinder spaces, at the edge of the lens carrier matching hole towards magnet yoke ring Chamber vertical protrusion the first magnet yoke ring dust ring, the first magnet yoke ring bottom wall and yoke ring cavity side wall and the first magnet yoke ring dust ring are formed Dust arrest groove；It is dust-proof that at the lens barrel edge with thread the first platform is additionally provided in the first support platform of the lens carrier Hoop, first platform the first magnet yoke ring bottom wall protrusion of dust-proof hoop direction；Matched with the first magnet yoke ring dust ring to be formed it is anti- Konisphere.
Further, the first platform positive stop lug boss is also arranged symmetrically in the first support platform of the lens carrier, The first platform positive stop lug boss is towards aforementioned first magnet yoke ring bottom wall protrusion, and projecting height is more than the dust-proof hoop of the first platform Projecting height.
In another specific embodiment of the present invention, the neighbouring first coil pad locations of first reed are set It is equipped with the first coil pads wire card slot that one contact conductor of coil is facilitated to be welded and fixed and neighbouring second coil pad locations is set It is equipped with the second coil pads wire card slot that another contact conductor of coil is facilitated to be welded and fixed.Lead card slot can be that both sides are two-way Opening or unilateral unidirectional opening, the position of opening are the centers that the contact conductor of coil is guided into pad.
In another specific embodiment of the present invention, in the back side gasket the of the first plane of gasket of the gasket The combination boss with combination function is respectively offered on the Delta Region position of the four corners of two planes, the combination boss is three The asymmetry of recess at middle position in angular zone between irregular recess and each combination boss to falling into so as to be placed in The positioning of the first reed and fool proof among recess；The height of the combination boss is more than the thickness of the first reed, the combination boss Neighboring row into right angle frame constitute and ensure the first reed and being isolated between the first magnet yoke ring and magnetite.
In another specific embodiment of the present invention, lens driver according to claim 1 is special Sign is that each corner positions of the first plane of gasket described in gasket are equipped with polygon boss, the polygon projection shape and electrode tip It foot shape and is equipped with, and the boss wraps electrode end feet with the shape of the electrode end feet relief hole of first magnet yoke ring To ensure that electrode end feet is isolated with the first magnet yoke ring, which passes through prominent first magnet yoke ring after electrode end feet relief hole The surface of bottom wall outer forms the positioning fixed frame side of external parts.
Technical solution provided by the invention is relative to one of technique effect of prior art, due to one group of magnetite and the first magnetic The cooperation of second magnet yoke ring yoke valve of yoke ring and the second magnet yoke ring is reasonable, and ensures magnetite magnetic pole coupling surface for N poles and the Two magnet yoke ring yoke valves are corresponding, and the magnetic field of even intensity is formed in small space between them, and coil surrounds electromagnetism The part line segment that slot is stretched into coupling is placed in acquisition electromagnetic induction power in the magnetic field of the even intensity, due to the part line segment of coil The magnetic field space of placement is configured with limit minimum physical size, therefore the air-gap reluctance of magnetic line of force coupling is minimum, institute To obtain most strong most stable of magnetic flux intensity under the conditions of equal space, and the dust ring of the first magnet yoke ring not only has isolation The effect of dust foreign matter picks up part leakage field of the magnetite towards the first magnet yoke ring bottom wall simultaneously, can increase the magnetic flux by coil, The electromagnetic induction power of bigger can be obtained；Two, the first support platform of the lens carrier and the first reed petals carrier supported The wing and the cooperation of the second reed petals carrier supported wing are fixedly connected, and the second support platform is fixed with the cooperation of the second reed carrier supported ring Connection, wherein, the first reed gives lens carrier and the positive movement direction that lens driving apparatus of the present invention defines is previously applied Initial thrust, the second reed give lens carrier and the first of the negative movement direction that lens driving apparatus of the present invention defines are previously applied Beginning thrust, the first reed and the second reed be applied to camera lens carrier with above optical axis to opposite initial thrust, therefore, first Reed and the second reed are applied to the resultant force size of camera lens carrier and the positive negative sense direction of motion and can arbitrarily adjust, that is, Ke Yiren Meaning adjusts the sensitivity of electric current-stroke of camera lens carrier, therefore smaller apparatus of the present invention can be obtained with larger stroke, Adjustment to a wide range can be obtained again simultaneously and put initial position of the camera lens carrier on optical axis, including the first of camera lens carrier Beginning position is arranged on the centre position of stroke, greatly further improving and performing beneficial to the optical axis degree of this lens driver The economization of time；Three, the dust-proof hoop of the first platform of the first magnet yoke ring dust ring and camera lens carrier cooperatively forms dustband, Extraneous micron order foreign matter can be effectively prevent to be entered on the imaging sensor of camera by this lens driver；It Four, the dust-proof hoop of the first platform of the camera lens carrier combines configuration with the first positive stop lug boss set, that is, plays position-limiting action, again It is avoided that aspiration damping of this lens driver on negative sense restraining position；Five, the carrier lead card of the camera lens carrier Wire casing is equipped with the first pads wire card slot of the first reed and the second pads wire card slot, is greatly convenient in technique By being welded and fixed for two contact conductors of coil and first coil pad and the second coil pad；Six, the limiting of the gasket, Positioning, fool proof combination boss are integrally formed, this lens driver are at least made to reduce by a component, so being greatly beneficial to body Shape is more miniaturized, assemble be easier, cost it is lower；Seven, second magnet yoke ring for octagon the second magnet yoke ring bottom wall and Second magnet yoke ring of periphery octacyclic rings is fitted into stack side lateral surface and the yoke ring cavity side wall patch of the first magnet yoke ring is touched, octagon column Second magnet yoke ring of body and the first magnet yoke ring nested configuration of rectangular cylinder, and form triangle in the four corners position of rectangle Shape notch, you can be used as fixing groove, and can be used as the external other accessory positioning of grafting is fixed to use.
Description of the drawings
Fig. 1 is the inside concrete structure diagram of the lens driver of the present invention；
Fig. 2-1 is the vertical view of the lens driver of the present invention；
Fig. 2-2 is the bottom view of the lens driver of the present invention；
Fig. 3 is along the sectional view of line A-A in Fig. 2-1；
Fig. 4 is the first magnet yoke ring of the present invention and the electromagnetic coupling schematic diagram of the second magnet yoke ring.
Specific embodiment
As shown in Figs. 1-3, specific implementation of the present invention is as follows：
The present invention lens driver, including a gabarit be cubical first magnet yoke ring 1,1 structure of the first magnet yoke ring The first magnet yoke rings of Cheng Youyi bottom wall 11 and yoke ring cavity side wall 12 and the first magnet yoke ring bottom wall 11 and 12 structure of yoke ring cavity side wall Into one yoke ring cavity 13 of inner space, offer one in the central part of the first magnet yoke ring bottom wall 11 and communicated with yoke ring cavity 13 The first magnet yoke ring lens carrier matching hole 111, and at least one electrode end feet is offered on the first magnet yoke ring bottom wall 11 Relief hole 113, the electrode end feet relief hole 113 are communicated with yoke ring cavity 13, and the yoke ring cavity 13 is cubic space, in institute The edge of the first magnet yoke ring lens carrier matching hole 111 is stated towards 13 vertical protrusion of yoke ring cavity, one first magnet yoke ring dust ring 112, the first magnet yoke ring bottom wall 11 and yoke ring cavity side wall 12 and the first magnet yoke ring dust ring 112 form dust arrest groove 14；One with The gasket 2 that the yoke ring cavity 13 is adapted to, the gasket 2 are placed in yoke ring cavity 13, one towards and be parallel to the first magnet yoke ring The first plane of gasket 21 of bottom wall 11 and the side patch of the first magnet yoke ring bottom wall 11 towards yoke ring cavity 13 are touched, and the pad The neighboring side 22 of piece 2 and the patch of yoke ring cavity side wall 12 of yoke ring cavity 13 are touched, which is one or four side ring bodies, outside All shapes follow the spatial form of the first yoke ring cavity 13 to change, and middle position is the through-hole of multilateral shape, i.e. gasket center Polygonal hole 25, in the Delta Region position of the four corners of the second plane of back side gasket 24 of the first plane of gasket 21 of gasket 2 It puts and respectively offers a combination boss 241 with combination functions such as limiting, positioning, fool proof, isolation, in four combination boss An electrode end feet 23 and an electrode pad 231 are additionally provided in 241 region, the 23 connection electrode pad 231 of electrode end feet is simultaneously The surface of the first plane of gasket 21 is penetrated through to the first plane of gasket 21 and protruded from the second plane of gasket 24, and continues to pass through aforementioned First magnet yoke ring, 1 electrode end feet relief hole 113 to protrusion the first magnet yoke ring bottom wall 11 outer surface, the electrode pad 231 In the region of combination boss 241 and with the second plane of gasket 24 in one plane, the shape of the electrode end feet 23 is square Shape, the shape of the electrode pad 231 is polygon, and a polygon is equipped in each corner positions of first plane of gasket 21 Boss 211,211 shape of polygon boss are stepped down with 23 shape of electrode end feet and with the electrode end feet of aforementioned first magnet yoke ring 1 The shape in hole 113 is equipped with, and the polygon boss 211 protrudes the surface in 11 outside of the first magnet yoke ring bottom wall, in the pad Each combination boss 241 of piece 2 is equipped with the anticollision fin 251 of a polygon adjacent to the side in gasket central polygon hole 25, should 251 1 plane of anticollision fin in one plane and with the first magnet yoke ring bottom wall 11 patch is touched with the first plane of gasket 21, described Combine a gasket third plane 2411 parallel with gasket the first plane 21 on boss 241；One is contained in yoke ring cavity 13 First reed 3, first reed 3 are fitted to each other and are formed by the first reed petals 31 and the second reed petals 32, first reed petals 31 by the of the first rectangular-shaped reed petals frame 311 of openings at one side and one group of first reed petals spring silk 312 and a polygon The cooperation of the one reed petals carrier supported wing 313 is formed, and the first reed petals spring silk 312 connects the first reed petals frame 311 respectively With the first reed petals carrier supported wing 313, second reed petals 32 by openings at one side the second rectangular-shaped reed petals frame 321 and the second reed petals carrier supported wing 323 of one group of second reed petals spring silk 322 and polygon cooperation form, described second Reed petals spring silk 322 connects the second reed petals frame 321 and the second reed petals carrier supported wing 323, first reed respectively One group of 311 and second reed petals frame 321 of valve frame and aforementioned gasket 2 combines the cooperation of boss 241 and positions, and the first reed 3 Direction and again the first plane of the first reed of one side 33 of parallel the second plane of gasket 24 are touched, and first with the patch of the second plane of gasket 24 The back side the second plane of the first reed 34 of the first plane of reed 33 is less than gasket third plane 2411, in the first reed petals frame There is a first electrode pad 3111 on frame 311, the second reed petals frame 321 has a second electrode pad 3211, and described one first The position folded of 3111 and one second electrode pad 3211 of electrode pad and a pair of electrodes pad 231 of gasket 2, described first There is one group of first vector location hole 3131 on the reed petals carrier supported wing 313, and equipped with a first coil pad 3132, closing on First coil pad 3132 is equipped with a first coil pads wire card slot 3133, in the second reed petals carrier supported wing 323 On have one group of Second support location hole 3231, and equipped with one second coil pad 3232, close on the second coil pad 3232 and be equipped with One second coil pads wire card slot 3233；One is contained in the lens carrier 4 of yoke ring cavity 13, and the lens carrier 4 is by a band 41 and one coil brace 42 of lens barrel of thread and the cooperation of the first support platform 43 and the second support platform 44 are formed, described first The plane for supportting platform 43 is parallel with the first magnet yoke ring bottom wall 11, the plane of the second support platform 44 also with the first magnet yoke ring bottom wall 11 Parallel, so the first support platform 43 and the second support platform 44 are parallel to each other, the band thread lens barrel 41 is located at coil The hole of 42 and first support platform 43 of stent and 44 middle section of the second support platform, the optical axis of the thread lens barrel is perpendicular to preceding The the first magnet yoke ring bottom wall 11 stated, internal screw thread size match with the camera lens external screw teeth size in addition selected, the coil branch Frame 42 is that a circumferential lateral surface is polygon, and one end of the coil brace 42 connects 43 other end of the first support platform and connects second Platform 44 is supportted, the circumferential lateral surface of first support platform 43 protrudes the circumferential lateral surface of coil brace 42, and second support is flat The circumferential lateral surface of platform 44 also protrudes the circumferential lateral surface of coil brace 42,42 and first support platform 43 of coil brace and the second support Platform 44 forms peripheral groove and polygon ring is spatially disposed to install coil 421, be additionally provided on 42 peripheral side of coil brace with it is aforementioned First magnet yoke ring bottom wall, 11 be arranged symmetrically one group of vertical electromagnetic coupling stretches into slot 422,43 direction of the first support platform First reed 3 and with the first reed petals carrier supported wing 313 of the first reed 3 and the second reed petals carrier supported wing 323 together Patch is touched, and the shape of the first support platform 43 coordinates the first reed petals carrier supported wing 313 and the second reed petals carrier supported wing 323 Shape, be additionally provided in the first support platform 43 and one group of first reed petals carrier location hole 3131 and one group of second reed petals 431 sets of the first platform positioning column of 3231 location fit of carrier location hole match and be allowed to it is fixed together, in the first support platform 43 On also set on 3233 corresponding position of aforementioned first coil pads wire card slot 3133 and the second coil pads wire card slot There is coil down-lead card slot 433, it is dust-proof at 41 edge of lens barrel with thread to be additionally provided with the first platform in the first support platform 43 Hoop 432, dust-proof 432 direction 11 protrusion of the first magnet yoke ring bottom wall of hoop of first platform, due to being provided with coil lead card slot 433, So the dust-proof hoop 432 of the first platform is interrupted, one group of first platform limit convex is also arranged symmetrically on first platform 43 Platform 434, the first platform positive stop lug boss 434 is towards aforementioned first magnet yoke ring bottom wall, 11 protrusion, and projecting height is more than described the The projecting height of the dust-proof hoop 432 of one platform, second support platform 44 are symmetrical equipped with one group in the second support platform 44 Second platform positioning column 441 of arrangement and the second platform positive stop lug boss 442 being arranged symmetrically, the second support platform 44 is described one Group electromagnetic coupling, which is stretched on 442 corresponding position of slot, to be open, and the coil 421, which is surrounded after electromagnetic coupling stretches into slot 422, forms one The electromagnetic coupling slot of blind hole shape；One group of magnetite 5 being contained in yoke ring cavity 13, the magnetite 5 are one or four side column bodies, exactly It is the cylinder of an isosceles trapezoid shape, and it is mutually perpendicular to wait waist edges, this group of magnetite 5 is placed in each corner of the first magnet yoke ring 1 Position simultaneously stretches into that 422 position of slot is corresponding with aforementioned electromagnetic coupling, this group of magnetite 5 is towards the magnetic pole coupling surface of 421 side of coil 54 also stretch into that 422 position of slot is corresponding with electromagnetic coupling, the circumferential lateral surface 51 of the isosceles avris of this group of magnetite 5 and aforementioned first magnetic The patch of yoke ring cavity side wall 12 of yoke ring 1 is touched, and the first plane of magnetite 52 for being parallel to the first magnet yoke ring bottom wall 11 of this group of magnetite 5 is folded It is added on one group of combination boss 241 of gasket 2, and is touched with the patch of gasket third plane 2411；One is contained in yoke ring cavity 13 Second reed 6, second reed 6 is by the second reed frame 61 and one group of second reed spring silk 62 and the second reed carrier supported The cooperation of ring 63 is formed, and one group of second reed spring silk 62 connects the second reed frame 61 and the second reed carrier supported ring respectively 63, the second reed frame 61 is that one at least the multilateral shape of four edges and must wherein have the second reed periphery of four edges Side 611 and the patch of yoke ring cavity side wall 12 of aforementioned first magnet yoke ring 1 are touched, and the one of the second reed frame 61 is parallel to the first magnetic The magnetite second that second the first plane of reed 612 of yoke ring bottom wall 11 is superimposed upon the back side of the first plane of magnetite 52 of magnetite 5 is flat It is touched on face 53 and with the patch of the second plane of magnetite 53,63 neighboring of the second reed carrier supported ring is opened for multilateral shape center Have the ring of the circular hole with thread lens barrel 41 of a cooperation camera lens carrier 4, the second reed carrier supported ring 63 be equipped with one group with The corresponding carrier location fit hole 631 of 441 quantity location of equal of the second platform positioning column of carrier 4, the second reed carrier branch The plane patch of second support platform 44 of parallel and towards aforementioned first magnet yoke ring bottom wall 11 a plane and carrier 4 for pushing out ring 63 It touches, and carrier positioning is matched and 441 sets of hole 631 and the second platform positioning column matches positioning and be allowed to fixed together；One second magnet yoke ring 7, second magnet yoke ring 7 has the second magnet yoke ring bottom wall 71 of a polygon or round, the second magnet yoke ring bottom wall 71 and first Magnet yoke ring bottom wall 11 is parallel, and one and camera lens carrier combination hole 712 are offered at the position placed in the middle of the second magnet yoke ring bottom wall 71 And communicated with yoke ring cavity 13, which is the hole of a multilateral shape, in camera lens carrier combination hole 711 Edge and position and the electromagnetic coupling of lens carrier 4 stretch into 422 corresponding quantity of slot it is equal be symmetrically equipped with one group of second magnetic Yoke ring yoke valve 711, the second magnet yoke ring yoke valve 711 form magnetic coupling yoke valve and in square towards 13 vertical protrusion of yoke ring cavity Shape, the second magnet yoke ring yoke valve 711 contactlessly extend into that electromagnetic coupling stretches into slot 422 and its couple planar is towards magnetite 5 Magnetic pole coupling surface 54, second magnet yoke ring, 7 periphery polygon ring forms one second magnet yoke ring and is fitted into stack side 72 and aforementioned the The chimeric patch of the yoke ring cavity side wall 12 of one magnet yoke ring 1 is touched, and the second magnet yoke ring be fitted on stack side 72 with the first magnet yoke ring bottom The first parallel plane 721 of wall 11 and the second plane 613 of the second reed frame 61 patch are touched.
In the specific embodiment of the present invention, a kind of lens driver is cube including a gabarit The first magnet yoke ring 1, first magnet yoke ring 1 composition have one first magnet yoke ring bottom wall 11 and yoke ring cavity side wall 12 and the first magnetic The one yoke ring cavity 13 of inner space that yoke ring bottom wall 11 and yoke ring cavity side wall 12 are formed, the first magnet yoke ring bottom wall 11 is square Shape, the yoke ring cavity side wall 12 is rectangular ring, and the yoke ring cavity 13 is the space of stereo structure.In the first yoke The central part of ring bottom wall 11 offers a first magnet yoke ring lens carrier matching hole 111 communicated with yoke ring cavity 13, described First magnet yoke ring lens carrier matching hole is circular through hole, opened up in the four corners region of the first magnet yoke ring bottom wall 11 there are four Electrode end feet relief hole 113, the electrode end feet relief hole 113 are communicated with yoke ring cavity 13.Circular first magnet yoke ring is saturating The edge in mirror carrier combination hole 111 is towards 13 vertical protrusion of yoke ring cavity, one first magnet yoke ring dust ring 112, first yoke Ring dust ring 112 is a contour annulus, as a result, in the first magnet yoke ring bottom wall 11 and yoke ring cavity side wall 12 and the first magnet yoke ring Dust ring 112 forms dust arrest groove 14.The gasket 2 of one rectangular ring being adapted to the yoke ring cavity 13, the gasket 2 are placed in In yoke ring cavity 13, one towards and be parallel to the first plane of gasket 21 of the first magnet yoke ring bottom wall 11 and the first magnet yoke ring bottom The side patch of wall 11 towards yoke ring cavity 13 is touched, and the neighboring side 22 of the gasket 2 and the magnet yoke ring of yoke ring cavity 13 The patch of chamber side wall 12 is touched, i.e., there are five faces and the medial surface and magnet yoke ring of the first magnet yoke ring bottom wall 11 in six faces of 2 peripheral side of gasket It touches patch and forms assembling positioning in four faces of 12 inside of cavity wall.The middle position of the gasket 2 is the through-hole of multilateral shape, i.e. gasket Central polygon hole 25.In the trigonum of the four corners of the second plane of back side gasket 24 of the first plane of gasket 21 of gasket 2 One is respectively offered on the position of domain has the combination boss 241 of the combination functions such as limiting, positioning, fool proof, isolation, the combination boss 241 centre position is the recess of asymmetric irregular polygon, and concave face is with gasket the second plane 24 in approximately the same plane On.Respectively there are an electrode end feet 23 and an electrode pad 231 in the sunk area of the two of which of four combination boss 241, it should 23 connection electrode pad 231 of electrode end feet simultaneously penetrates through to the first plane of gasket 21 from the second plane of gasket 24 and protrudes gasket first The surface of plane 21, and continue to pass through aforementioned first magnet yoke ring, 1 electrode end feet relief hole 113 to the first magnet yoke ring bottom wall 11 of protrusion Outer surface form the external driving power of driving device electrode.The electrode pad 231 is in the region of combination boss 241 And with the second plane of gasket 24 in one plane, the shape of the electrode end feet 23 be rectangle, the shape of the electrode pad 231 Shape is polygon.A polygon boss 211, the polygon boss are equipped in the four corners position of first plane of gasket 21 211 shapes are equipped with 23 shape of electrode end feet and with the shape of the electrode end feet relief hole 113 of aforementioned first magnet yoke ring 1, And the polygon boss 211 protrudes the positioning fixed frame of the external component of surface composition in 11 outside of the first magnet yoke ring bottom wall. Each combination boss 241 of the gasket 2 is equipped with the anticollision fin of a polygon adjacent to the side in gasket central polygon hole 25 251, which in one plane and with the first magnet yoke ring bottom wall 11 pastes with the first plane of gasket 21 It touches.A gasket third plane 2411 parallel with gasket the first plane 21 on combination boss 241, the gasket third plane and not Recess cooperation among symmetrical irregular combination boss 241 has the function that positioning, limit for height, limiting, isolation and fool proof, the work It is stated used in embodiment described hereinafter relaying continued.One is contained in the first reed 3 in yoke ring cavity 13, and first reed 3 is by One reed petals 31 and the second reed petals 32 are fitted to each other composition, first reed petals 31 by openings at one side rectangular-shaped first The first reed petals carrier supported wing 313 of reed petals frame 311 and one group of first reed petals spring silk 312 and a polygon coordinates structure Into the first reed petals spring silk 312 connects the first reed petals frame 311 and the first reed petals carrier supported wing 313, institute respectively State rectangular-shaped second reed petals frame 321 and one group second reed petals spring silk 322 He of second reed petals 32 by openings at one side The second reed petals carrier supported wing 323 cooperation of polygon is formed, and the second reed petals spring silk 322 connects the second reed respectively The 321 and second reed petals carrier supported wing 323 of valve frame, the first reed petals frame 311 and 321 structure of the second reed petals frame Into the outer rectangular shape frame of the first reed 3, four corners shape and the aforementioned pad of the outer rectangular shape frame of first reed 3 The concave shape cooperation of one group of combination boss 241 of piece 2, and the first reed 3 towards and the one of parallel the second plane of gasket 24 Face the first plane of the first reed 33 is touched with the patch of the second plane of gasket 24, that is, is placed in the second plane of gasket 24 of gasket 2, and the The back side the second plane of the first reed 34 of one the first plane of reed 33 is formed less than gasket third plane 2411 and combination boss 241 Positioning to the first reed 3 and it is isolated with the first magnet yoke ring 1 and magnetite 5.Have one on the first reed petals frame 311 One electrode pad 3111, the second reed petals frame 321 have a second electrode pad 3211,3111 He of first electrode pad The position folded of one second electrode pad 3211 and a pair of electrodes pad 231 of gasket 2, and they are distinguished into soldering or Laser Welding It welds.There is one group of first vector location hole 3131 on the first reed petals carrier supported wing 313, and equipped with one first Coil pad 3132 is closing on first coil pad 3132 equipped with a first coil pads wire card slot 3133, described second There is one group of Second support location hole 3231 on the reed petals carrier supported wing 323, and equipped with one second coil pad 3232, close on the Two coil pad 3232 is equipped with one second coil pads wire card slot 3233.One is contained in the lens carrier 4 of yoke ring cavity 13, institute The central space that lens carrier 4 is in yoke ring cavity 13 is stated, lens carrier 4 is lens barrel 41 and one of the eight side bar shapes one with thread 42 and first support platform 43 of coil brace and the second support platform 44 cooperation form, the plane of first support platform 43 with First magnet yoke ring bottom wall 11 is parallel, and the plane of the second support platform 44 is also parallel with the first magnet yoke ring bottom wall 11, so first Support 43 and second support platform 44 of platform is parallel to each other, and the band thread lens barrel 41 is located at the support of coil brace 42 and first The hole of 43 and second support platform of platform, 44 middle section, the optical axis of the thread lens barrel is perpendicular to the first aforementioned magnet yoke ring bottom Wall 11, internal screw thread size match with other optional camera lens external screw teeth size, and the coil brace 42 is a circumferential lateral surface For octagon, which connects 43 other end of the first support platform and connects the second support platform 44, and described first The circumferential lateral surface of support platform 43 protrudes the circumferential lateral surface of coil brace 42, and the circumferential lateral surface of second support platform 44 is also dashed forward Go out the circumferential lateral surface of coil brace 42,42 and first support platform 43 of coil brace and the second support platform 44 form peripheral groove Polygon ring is spatially disposed to install coil 421, is additionally provided on 42 peripheral side of coil brace and hangs down with aforementioned first magnet yoke ring bottom wall 11 Be arranged symmetrically four straight electromagnetic couplings stretch into slot 422, which stretches into the magnetic pole coupling of coupling slot 422 and the magnetite 5 of postposition Want to face in 53 position of conjunction face.First support platform 43 towards the first reed 3 and with the first reed petals carrier of the first reed 3 The 313 and second reed petals carrier supported wing 323 of braced wing pastes together to be touched, and the shape of the first support platform 43 coordinates the first reed petals The shape of the 313 and second reed petals carrier supported wing 323 of the carrier supported wing is additionally provided with and one group in the first support platform 43 First platform positioning column of one reed petals carrier location hole 3131 and one group of second 3231 location fit of reed petals carrier location hole 431 sets are matched and are allowed to fixed together, and fixing means can be bonding or riveting.Aforementioned in the first support platform 43 One coil pads wire card slot 3133 and the second coil pads wire card slot are additionally provided with coil lead card on 3233 corresponding position Slot 433, two contact conductors of coil 421 pass through first coil pads wire card slot 3133 respectively from coil lead card slot 433 The 3132 and second coil pad of first coil pad of the first reed 3 is located in the introducing of the second coil pads wire card slot 3233 Soldering or Laser Welding connection are carried out on 3232.In the first support platform 43 first is additionally provided at 41 edge of lens barrel with thread The dust-proof hoop 432 of platform, the dust-proof hoop 432 of first platform is towards 11 protrusion of the first magnet yoke ring bottom wall, due to being provided with coil lead Card slot 433, so the dust-proof hoop 432 of the first platform is interrupted at 433 position of coil down-lead card slot, first platform is dust-proof Hoop 432 is placed in 1 dust arrest groove of the first magnet yoke ring, 14 space can be effective with the first magnet yoke ring dust ring 112 composition twice dust slinger The small foreign matter inside the lens driver is prevented to enter the sensor surface for the camera applied.Described first Four the first platform positive stop lug boss 434 are also arranged symmetrically on platform 43, the first platform positive stop lug boss 434 is towards aforementioned first magnetic 11 protrusion of yoke ring bottom wall, and projecting height is more than the projecting height of the dust-proof hoop 432 of first platform, when 4 direction of lens carrier When first magnet yoke ring bottom wall 11 is along axis movement, which touches the interior of the first magnet yoke ring bottom wall 11 Stop motion during side and play the role of limiting, meanwhile, the first platform positive stop lug boss 434 makes the dust-proof hoop 432 and the of the first platform A clearance space is formed between one magnet yoke ring bottom wall 11, the performance of lens driver can be destroyed to avoid aspiration damping.One Second support platform 44, sets that there are four the second platform positioning columns 441 and four for being arranged symmetrically in the second support platform 44 A the second platform positive stop lug boss 442 being arranged symmetrically, the second support platform 44 stretch into slot 442 in four electromagnetic couplings and correspond to Position on be open respectively, electromagnetic coupling of the coil 421 surrounding stretches into after slot 422 the electromagnetic coupling slot for forming a blind hole shape. Four magnetites 5 being contained in yoke ring cavity 13, the magnetite 5 are one or four side column bodies, are exactly the columns of an isosceles trapezoid shape Body, and wait waist edges be it is mutually perpendicular, four magnetites 5 be placed in the four corners position of the first magnet yoke ring 1 and with aforementioned electricity Magnetic coupling stretches into that 422 position of slot is corresponding, this group of magnetite 5 is towards the magnetic pole coupling surface 54 of 421 side of coil towards electromagnetic coupling Slot 422 is stretched into, the circumferential lateral surface 51 of the isosceles avris of four magnetites 5 and the yoke ring cavity side wall 12 of aforementioned first magnet yoke ring 1 Patch is touched, and the first plane of magnetite 52 for being parallel to the first magnet yoke ring bottom wall 11 of four magnetites 5 is superimposed upon four of gasket 2 respectively Combine boss 241 on, and with gasket third plane 2411 patch touch, at this point, because combination boss 241 limit for height, ensure magnetite 5 with First reed 3 is isolated.One is contained in the second reed 6 of the octagonal shape in yoke ring cavity 13, and second reed 6 is by the second spring Piece frame 61 and the cooperation of four the second reed spring silks 62 and the second reed carrier supported ring 63 are formed, four second reed springs Silk 62 connects the second reed frame 61 and the second reed carrier supported ring 63 respectively, and the second reed frame 61 is one to be at least Must there are the second reed circumferential lateral surface 611 of four edges and the yoke ring cavity of aforementioned first magnet yoke ring 1 in the multilateral shape of four edges The patch of side wall 12 is touched, and the one of the second reed frame 61 second the first plane of reed 612 for being parallel to the first magnet yoke ring bottom wall 11 is folded It is added in second plane of magnetite 53 at the back side of the first plane of magnetite 52 of magnetite 5 and is touched with the patch of the second plane of magnetite 53, it is described Second reed carrier supported ring, 63 neighboring for multilateral shape center be provided with a cooperation camera lens carrier 4 with thread lens barrel 41 The ring of circular hole, sets that there are four the 441 quantity phase equipotentials of the second platform positioning column with carrier 4 on the second reed carrier supported ring 63 Corresponding carrier location fit hole 631 is put, the second reed carrier supported ring 63 parallel and towards aforementioned first magnet yoke ring bottom Second the first plane of reed 612 of wall 11 is touched, and four symmetrical carriers are determined with the plane patch of the second support platform 44 of carrier 4 Position is matched and 441 sets of hole 631 and the second platform positioning column matches positioning and be allowed to fixed together, and fixed form can be bonding or riveting It connects.One second magnet yoke ring 7, second magnet yoke ring 7 have an octagonal second magnet yoke ring bottom wall 71, the second magnet yoke ring bottom wall 71 is parallel with the first magnet yoke ring bottom wall 11, and offer one at the position placed in the middle of the second magnet yoke ring bottom wall 71 matches with camera lens carrier It closes hole 712 and is communicated with yoke ring cavity 13, which is the hole of a multilateral shape, is matched in camera lens carrier Close 711 edge of hole and position and the electromagnetic coupling of lens carrier 4 stretch into 422 corresponding quantity of slot it is equal symmetrically set there are four Second magnet yoke ring yoke valve 711, the second magnet yoke ring yoke valve 711 is towards 13 protrusion of yoke ring cavity and the second magnet yoke ring bottom wall 71 Vertical composition magnetic coupling yoke valve and rectangular, which contactlessly extend into electromagnetic coupling and stretches into The magnetic pole coupling surface 54 and parallel to each other, the 7 periphery polygon of the second magnet yoke ring of slot 422 and its couple planar towards magnetite 5 Ring one second magnet yoke ring of composition is fitted into the patch chimeric with the yoke ring cavity side wall 12 of aforementioned first magnet yoke ring 1 of stack side 72 and touches, and the Two magnet yoke rings are fitted into of first plane 721 parallel with the first magnet yoke ring bottom wall 11 and the second reed frame 61 on stack side 72 Two planes 613 patch is touched, and octagonal second magnet yoke ring 7 is chimeric to be placed in the first magnet yoke ring 1, in the first yoke of gabarit square The triangle groove of corner positions of ring, injects glue in the triangular groove, just can once complete the first magnet yoke ring 1, Gasket 2, magnetite 5, the second reed 6, the second magnet yoke ring 7 each adhering components fix.
In another specific embodiment of the present invention, it is equipped in the first support platform 43 of the lens carrier 4 First platform positive stop lug boss 434 of one group of bottom wall protrusion towards the first magnet yoke ring 1, general setting is more than two, and the present invention is real It applies and four is set in example, and one group of bottom wall towards the second magnet yoke ring 6 is equipped in the second support platform of the lens carrier 4 Second positive stop lug boss 742 of protrusion sets four in the embodiment of the present invention, the first platform positive stop lug boss of the camera lens carrier 4 434 be 11 luck of the first magnet yoke ring bottom wall that the negative movement that lens driving apparatus of the present invention defines touches the first magnet yoke ring 1 Dynamic limiting of being obstructed, the second positive stop lug boss 442 of the camera lens carrier 4 is that the positive movement that lens driving apparatus of the present invention defines touches Retard motion limits when encountering the second magnet yoke ring bottom wall 71 of the second magnet yoke ring 7.
In another specific embodiment of the present invention, the first support platform 43 of the lens carrier 4 and the first spring The piece valve carrier supported wing 313 is fixedly connected with the cooperation of the second reed petals carrier supported wing 323, the second support platform 44 and the second spring The cooperation of piece carrier supported ring 63 is fixedly connected, wherein, the first reed 3 gives lens carrier 4 and lens driving of the present invention is previously applied The initial thrust in positive movement direction that device defines, the second reed 6 give lens carrier 4 and lens driving of the present invention are previously applied The initial thrust in negative movement direction that device defines.
It is octagonal second yoke in second magnet yoke ring 7 in another specific embodiment of the present invention Ring bottom wall 71, offered at the position placed in the middle of the octagonal bottom wall 71 one with camera lens carrier combination hole 712 and with yoke ring cavity 13 communicate, and four the second magnet yoke ring yoke valves 711, the second magnet yoke ring 7 are symmetrically provided with around camera lens carrier combination hole 712 Periphery octacyclic rings are fitted into the yoke ring cavity side wall 12 that 72 peripheral side of stack side is entrenched in the first magnet yoke ring 1 for the second magnet yoke ring, and And second second magnet yoke ring of magnet yoke ring 7 be fitted into second first plane of magnet yoke ring 721 on stack side 72 and be superimposed upon the second reed frame In second the second plane of reed 613 of 61 the second reed frame 61, aforementioned the second magnet yoke ring yoke valve 711 for being set as four The electromagnetic coupling for being inserted into lens carrier 7 touchlessly is stretched into slot 422, and can prevent effect of the lens carrier 4 because of external force Cause the position-limiting action of 4 direction of rotation of the lens carrier excessively rotated.
In specific embodiment there are one the present invention, 1 and second magnet yoke ring 7 of the first magnet yoke ring and magnetite 5 The resultant field of a pair of yoke coupling is formed, four are formed between the second magnet yoke ring yoke valve 711 and magnetite 5 of the second magnet yoke ring 7 A uniform parallel magnetic field, the first magnet yoke ring dust ring 112 of the first magnet yoke ring 1 can pick up 5 part leakage field of magnetite and increase again Add effective flux, coil 421 is enable to improve electromagnetic induction efficiency to greatest extent.
More specifically, specific embodiments of the present invention are as follows：
As shown in Figures 1 to 3, which includes one first magnet yoke ring 1 for forming yoke ring cavity 13 and one the Two magnet yoke rings 7,1 and second magnet yoke ring 7 of the first magnet yoke ring all use metal magnetic conducting material, wherein, first magnet yoke ring 1 Outer profile either cube or cylinder, can also be other shapes (such as five side column bodies, hexagonal column body or Eight side column bodies), as preferred shape, example selects cube during the present invention is implemented, and more particularly selects positive four side columns body.It should First magnet yoke ring 1 has the first magnet yoke ring bottom wall 11 of a rectangle, is the bottom wall of square in the embodiment of the present invention, in the first magnetic The position placed in the middle of yoke ring bottom wall 11 offers a lens carrier matching hole 111, in the present embodiment the lens carrier matching hole 111 For circle, which communicates with yoke ring cavity 13.First magnet yoke ring 1 doubles as lens driver of the present invention External framework, and ensured further below as reference for assembling using the surrounding inner face of the yoke ring cavity side wall 12 of yoke ring cavity 13 The assembly precision in parts axle center to be referred to, to meet the requirement of the optical axis degree of lens driver of the present invention, more precisely, Meet the optical axis degree requirement for the lens carrier 4 to be described in detail further below.
An electrode end feet relief hole is respectively offered in the four corners of the first aforementioned magnet yoke ring bottom wall 11 (square) 113, the shape of the electrode end feet relief hole is not limited to the rectangular opening of diagram, such as can also be round hole or other similar shapes The hole of shape.Although only using the adjacent both ends foot relief hole 113 positioned at side in practical assembling process, four are set Flexible selection when the purpose of end feet relief hole 113 is for the ease of assembling.At the edge of lens carrier matching hole 111 towards magnetic 13 protrusion of yoke ring chamber has a cricoid side wall, i.e. the first magnet yoke ring dust ring 112, first magnet yoke ring dust ring 112 its main function It is to form the dust-proof outpost of the tax office as shown in the figure and pickup magnetite 4 towards the first magnet yoke ring with the dust-proof hoop 432 of the first platform of lens carrier 4 Leakage field increase by 421 effective electromagnetic coupling of coil of bottom wall 11, the first magnet yoke ring dust ring 112 and the dust-proof hoop 432 of the first platform Cooperation position, if the first magnet yoke ring of legend dust ring 112 is placed in inner lane, the dust-proof hoop 432 of the first platform is placed in outer ring, can also incite somebody to action First magnet yoke ring dust ring 112 is placed in outer ring, and the dust-proof hoop 432 of the first platform is placed in inner lane, therefore cannot prevent with the first magnet yoke ring 112 and first platform of dirt ring it is dust-proof hoop 432 change in location and limit technical scheme of the present invention.
One gasket 2 taken on by nonmetallic materials, since the yoke ring cavity 13 of the first aforementioned magnet yoke ring 1 is cube shaped Cavity is more precisely positive four side columns bodily form cavity, therefore the outer profile of the gasket 2 (will carry further below for positive four side columns body And other components such as 4 same example of first, second reed 3,8 and gasket), by the first plane of gasket 21 towards the first magnet yoke ring bottom wall 11 position is contained in aforementioned yoke ring cavity 13, and gasket first plane 21 and the first magnet yoke ring bottom wall 11 patch are touched, That is the first magnet yoke ring bottom wall 11 is contacted towards the side of yoke ring cavity 13 with the first plane of gasket 21 of the gasket 2, and The gasket neighboring side 22 of gasket 2 is in contact with the magnet yoke ring cavity wall 12 of yoke ring cavity 13.It is opened in the middle position of gasket 2 Hole 25 (can also be round) equipped with shape for polygon, and respectively offering one in the four corners position of gasket 2 has The combination boss 241 of the combination functions such as limiting, positioning, fool proof, isolation, that is to say, that there are four the quantity of combination boss 241, The four corners position of gasket 2 is respectively there are one distribution.The weldering of 23 and one electrode of electrode end feet is additionally provided in the corner positions of gasket 2 Disk 231, electrode end feet 23 is in 21 side of the first plane of gasket, and electrode pad 231 is at the back side of the first plane of gasket 21, i.e. gasket Second plane, 24 side, the adjacent corner positions of the two of gasket 2 are each in embodiments of the present invention distributes 23 He of an electrode end feet Electrode pad 231, that is to say, that have two arrays of electrodes end feet 23 and electrode pad 231 on gasket 2, equally can be three groups or four groups Or more multigroup electrode tip foot 23 and electrode pad 231 are set according to configuration.In addition in the four corners of 21 side of the first plane of gasket Respectively there is a L-shaped boss 211 in position, and the L-shaped boss 211 in the present embodiment is L-shaped or other shapes, L-shaped boss 211 are equipped with electrode end feet 23, while coordinate with the electrode end feet relief hole 113 of the first magnet yoke ring 1, across electrode end feet Relief hole 113, plays the role of isolated insulation between 23 and first magnet yoke ring 1 of electrode end feet, and L-shaped boss 211 protrudes the Play the role of location fit for the other parts of external adjunction in the outer surface of one magnet yoke ring, 1 first magnet yoke ring bottom wall 11.
One first reed 3 being contained in aforementioned yokes ring cavity 13 and magnetite 5 are given, the first reed 3 is located at aforementioned pad Between piece 2 and the magnetite 5, and the shape localization fixed in position of the combination boss 241 of 3 tie spacer 2 of the first reed, simultaneously First reed 3 avoids contacting with the first magnet yoke ring 1 and magnetite 5 by combining the limiting of boss.As shown in Figure 1, the first reed 3 by First, second reed petals 31,32 are fitted to each other composition, that is to say, that the first reed 3 includes the first reed petals 31 and the second reed Valve 32, the first reed petals 31 are carried by one first reed petals frame 311, a pair of first reed petals spring silk 312 and one first reed petals The cooperation of body braced wing 313 is formed, and the first reed petals frame 311 is the rectangular frame of an openings at one side, and the frame is half of with gasket 2 Frame side with merge by gasket 2 two corner positions combination boss 241 cooperation positioning, so in the first reed petals frame The shape of 311 two corner positions is worked in coordination with combining the shape of boss 241, in embodiments of the present invention, gasket 2 Have a pair of electrodes pad 231 in recessed position in combination boss 241 region, with a pair of electrodes pad 231 one of them Corresponding position the first reed petals frame 311 on a first electrode pad 3111 is set, first electrode pad 3111 with it is a pair of The overlapping of one of electrode pad 231 is placed, and is generally welded them together by method for laser welding, can also be used it Its welding method welds them together, such as the welding of electric iron scolding tin or the welding of solder(ing) paste reflow oven.Implement in the present invention In example, the first reed petals 31 are equipped with a pair of first reed petals spring silk 312, which is disk serpentine, first spring of a pair The both ends of piece valve spring silk 312 connect the first reed petals frame 311 and the first reed petals carrier supported wing 313 respectively.In the present invention In embodiment, the first reed carrier supported wing 313 be in semicircular, one with the first support platform 43 of aforementioned lens carrier 4 Part cooperation positioning is fixedly connected, and it is fixed with the cooperation of the first platform positioning column 431 of lens carrier 4 to be equipped on the carrier supported wing The first vector location hole 3131 of position, general setting two or more, sets three first vector location holes 3131 in the present embodiment, There is a first coil pad 3132 on first vector braced wing 313 and be beneficial to coil electrode lead and position first drawn Pads wire card slot 3133, the position of first coil pad 3132 are corresponding with the position of the carrier lead card slot 733 of lens carrier 7 Matching.Equally, in embodiments of the present invention, the second reed petals 32 are almost the symmetrical cloth of (being not fully) first reed petals 31 It puts, is carried in the first reed petals 32 by one second reed petals frame 321, a pair of second reed petals spring silk 322 and one second reed petals The cooperation of body braced wing 323 is formed, and the second reed petals frame 321 is the rectangular frame of an openings at one side, and the frame is opposite with gasket 2 Match the combination boss for merging another two corner positions by gasket 2 in the frame side of another one side of something of 31 position of the first reed petals 241 cooperation positioning, so the shape in two corner positions of the second reed petals frame 321 is with the shape for combining boss 241 It works in coordination, and in the present embodiment, gasket 2 has a pair of electrodes weldering in the recessed position in 241 region of combination boss Disk 231, electric with setting one second on corresponding position the second reed petals frame 321 of one of a pair of electrodes pad 231 Pole pad 3211, one of second electrode pad 3211 and a pair of electrodes pad 231 are Chong Die to be placed, and generally passes through Laser Welding The method of connecing welds them together, and can also be welded them together with other welding methods, such as the weldering of electric iron scolding tin It connects or the methods of solder(ing) paste reflow oven is welded, the second reed petals 32 are equipped with a pair of second reed petals spring silk 322, the spring silk shape For disk serpentine, the both ends of a pair the second reed petals spring silk 322 connect the second reed petals frame 321 respectively and the second reed petals carry Body braced wing 323, in embodiments of the present invention, the second reed carrier supported wing 323 are in semiannular shape, with aforementioned lens carrier Another part cooperation of 4 the first support platform 43 is fixedly connected, and first with lens carrier 4 is equipped on the carrier supported wing The Second support location hole 3231 of the cooperation positioning of platform positioning column 431, general setting two or more are set in the embodiment of the present invention Three first vector location holes 3231 also have one second coil pad 3232 on Second support braced wing 323 and are beneficial to line Enclose the second pads wire card slot 3233 of 421 contact conductors extraction, the position of the second coil pad 3232 and the load of lens carrier 4 The location matches of another lead card slot 433 of body.
First reed petals 31 and the second reed petals 32 are not only supported on jointly in the first support platform 43 of lens carrier 4, And by the way that two contact conductors of coil 421 are respectively welded at 3132 and second coil pad 3232 of first coil pad On, be divided into not Jing Guo the first reed petals spring silk 312 and the second reed petals spring silk 322 export, and pass through and a pair of electrodes on gasket 2 The first electrode pad 3111 of connection and a pair of electrodes of second electrode pad 3211 and apparatus of the present invention is respectively welded in pad 231 End feet forms electric loop, and according to common knowledge, the first reed petals 31 and the second reed petals 32 are cannot to contact mutually, can not What being contacted with the first magnet yoke ring 1 and magnetite 4 contacted, and setting is to the first reed petals 31 and the on the combination boss 241 of gasket 2 The positioning of two reed petals 32, limit for height ensure the isolated insulation respectively and between the first magnet yoke ring 1 and magnetite 5.
The lens carrier 4 being contained in yoke ring cavity 13 having already mentioned above is given, lens carrier 4 has a band spiral shell The lens barrel 41 of tooth, the lens which is not shown in figure for placement, the drive lens by the movement of lens carrier 4 It is mobile.There is the first platform positioning column 431 of one first support platform 43 in the side of the lens carrier 4 towards the first reed 3 simultaneously With 3132 and second reed of first vector location hole on the first reed petals carrier supported wing 313 of the first aforementioned reed petals 31 The positioning of Second support location hole 3232 on the second reed petals carrier supported wing 323 of valve 32 is fixedly connected, flat in the first support The flange of the inner ring edge protrusion of platform 43 is the dust-proof hoop 432 of the first platform, the dust-proof hoop 432 of the first platform and the first aforementioned yoke Ring dust ring 112 plays the subtle foreign matter of blocking in the inside and outside configuration of dislocation up and down may be by subtle in driving device of the present invention Gap drops into the dust-break bayonet of the image sensor surface of camera module, has more effective dust-break dustproof effect.It is aforementioned The first magnet yoke ring dust ring 112 towards 13 inner process of yoke chamber, form dust in the first magnet yoke ring bottom wall 11 of yoke chamber 13 Groove ring 14.The first pad that a pair of of carrier lead card slot 433 and aforementioned first reed 3 are additionally provided in the first support platform draws 3133 and second pads wire card slot 3233 of line card slot coordinates is directed to First Line lap welding by 421 contact conductor of coil by card slot On 3132 and second coil pad 3232 of disk, welding is facilitated to operate.Four first limitings are additionally provided in the first support platform 73 Boss 434, the first positive stop lug boss 434 are arranged symmetrically in the periphery of the first support platform 43, and the first positive stop lug boss 434 is in the present invention Forcing to first by the bottom wall 11 of the first magnet yoke ring of direction 1 that aforementioned second reed 6 applies during zero driving current of driving device First magnet yoke ring bottom wall 11 of magnet yoke ring 1, and touched with the first magnet yoke ring bottom wall 11 patch, it can also be by adjusting the second reed The power of 6 spring forces makes the first positive stop lug boss 434 not contact the first magnet yoke ring bottom in zero driving current of driving device of the present invention Wall 11 just thinks that (direction of motion is also defined as this to lens carrier 4 when being moved towards 11 direction of the first magnet yoke ring bottom wall The negative direction of lens driver), it is limited when touching the first magnet yoke ring bottom wall 11, the limit accuracy can be at this time Within 50 microns, in addition first positive stop lug boss 434 also has another function, even if flat in the support of lens carrier 4 first Platform 43 except between 434 outer remaining surface of the first positive stop lug boss and the first magnet yoke ring bottom wall 11 and the first magnet yoke ring dust ring 112 A minim gap is maintained, the aspiration to avoid driving device of the present invention issuable common knowledge when driving initial is bad Phenomenon, and the precision of the optical axis degree of this lens driver can be improved.As shown in Fig. 1 to 3, the first support of lens carrier 4 is flat The reverse side of platform 43 is one second support platform 44, outer between aforementioned first support platform, 43 and second support platform 44 All sides, the coil brace 42 that the groove that ring circumferential lateral surface has a receiving annulus 421 is formed, general first support platform 43 and second support platform 44 circumferential lateral surface be more than or equal to coil 421 circumferential lateral surface, to avoid coil 421 by external force Damage caused by friction during impact between other components.The coil brace 42 and the second of aforementioned second magnet yoke ring 7 Slot 422 is stretched into 711 corresponding position of magnet yoke ring yoke valve equipped with electromagnetic coupling, coordinates the number of the second magnet yoke ring yoke valve 711 Amount electromagnetic coupling stretches into slot 422 there is provided four, stretches into electromagnetic coupling for the second magnet yoke ring yoke valve 711 and stretches into slot 422, with Equally distributed magnetic field is established in corresponding spatial position between aforementioned magnetite 5, and a part is included in and is uniformly distributed in coil 421 The spatial position in magnetic field, i.e., the described coil sections are between the second magnet yoke ring yoke valve 711 and magnetite 5, so, work as coil In when pass through electric current will electromagnetic coupling generate electromagnetic induction power so as to drive the movement of camera lens carrier 4.It is different in order to prevent Object intrusion camera imaging region, general electromagnetic coupling are goed deep into slot 422 and are not penetrated through, and surround rear and first with coil 421 It supports 43 part of platform and forms blind hole, and the second support platform 44 corresponds to electromagnetic coupling and stretches into 422 outs open of slot.Described second It supports platform 44 and is equipped with one group of second platform positioning column 441 and one group of second positive stop lug boss 442, the second platform positioning column 441 It corresponds and is fixedly connected with one group of carrier location fit hole 631 on the second reed carrier supported ring 63 of the second reed 6, the Two platform positioning columns at least two or more set four in the embodiment of the present invention.Second positive stop lug boss 442 is lens carrier 4 move that (direction of motion is being also defined as the lens driver just towards the second magnet yoke ring bottom wall 71 of the second magnet yoke rings 7 Direction) when touch the limiting of bottom wall 61, effect is that the second reed 6 strikes second magnet yoke ring when avoiding external impacts Deformation may be caused impaired during bottom wall 71.It is described before comprehensive, the first support platform 43 of lens carrier and the first spring of the first reed 3 The piece valve carrier supported wing 313 is fixedly connected with the positioning of the second reed petals carrier supported wing 323, the second support platform 44 and the second spring Second reed carrier supported ring 63 of piece 6 is fixedly connected, i.e., lens carrier 4 be fixed on the first reed 3 and the second reed 6 it Between, and by the first reed petals spring silk 312 and the second reed spring silk 62 of the second reed petals spring silk 322 and the second reed 6 Common support forms inventive drive means in optical axis direction undamped motion back and forth, so as to reach the purpose linearly focused.
One group of magnetite 5 (can also claim magnet) is given, the quantity of one group of magnetite 5 is four pieces, is individually positioned in magnet yoke ring The four corners position of chamber 13, that is to say, that be furnished with one piece of magnetite 5, the direction of each magnetite 5 in each angle part of yoke ring cavity 13 Coil one side is corresponding with coil 421 for magnetite coupling surface 54, that is to say, that is surrounded coil 421 by one group of magnetite 5.By Fig. 1 Shown, each magnetite 5 is four side column bodies, and exactly, quadrangular section is isosceles trapezoid, and two waist edges are orthogonal, but It is that also the shape of magnetite 5 can be made to make adaptive change according to the change in shape of the first magnet yoke ring.Each magnetite 5 two is mutually The patch of magnet yoke ring cavity wall 11 of as 51 and first magnet yoke ring 1 of magnetite circumferential lateral surface of vertical waist edge is touched, the side magnetite of each magnetite 5 Gasket third plane 2411 patch of first plane 52 respectively with the combination boss 241 of 2 four corners of gasket is touched, and be combined Boss 241 limits certain height and position so that each magnetite 5 to be kept not contacted with the first reed 3, avoids because of the first reed 3 and magnetite 5 contact and cause the short circuit of 421 circuit of coil.
Give the second reed 6 being contained in yoke ring cavity 13, the second of the second reed frame 61 of second reed 6 Reed circumferential lateral surface 611 and the magnet yoke ring cavity wall 12 of yoke ring cavity 13 be affixed it is tactile, and the middle position of the second reed 6 form There is one second reed carrier supported ring 63, the second reed carrier supported ring 63 and the second support of the lens carrier 4 are flat Platform 44 shape cooperation positioning is fixedly connected, one group of second reed spring silk 62 be located at the four corners position of the second reed 6 and It is coupled the second reed frame 61 and the second reed carrier supported ring 63 respectively.
One group of carrier is opened up in a symmetrical in the circumferencial direction of aforementioned 6 second reed carrier supported ring 63 of the second reed Location fit hole 631, and towards structure on the face of the side of the second reed 6 in aforementioned 4 second support platform 44 of lens carrier Cheng Youyi groups quantity is equal with carrier location fit hole 631 on the second reed carrier supported ring 63 and position corresponding second Platform positioning column 441 is inserted by one group of second platform positioning column 441 in carrier location fit hole 631 and to lens carrier 4 Positioning is fixed.
One second magnet yoke ring 7 is given, 13 scarf of yoke ring cavity of second magnet yoke ring 7 and the first aforementioned magnet yoke ring 1, Lens carrier matching hole 711 is offered in the middle position of the 7 second magnet yoke ring bottom wall 71 of the second magnet yoke ring.The second aforementioned spring Piece 6 is towards 7 second yoke of second reed the second plane 613 and the second magnet yoke ring of the second reed frame 61 of the second magnet yoke ring 7 Second the first plane of magnet yoke ring 721 patch that ring is fitted on stack side 72 is touched, towards second the first plane of reed 612 and magnetic of magnetite 5 The patch of stone 45 is touched.As shown in Figure 1, the edge position of the second magnet yoke ring 7, which is formed, second magnetic for being projected on the second magnet yoke ring 7 Yoke ring is fitted into stack side 72, which is fitted into stack side 72 and 13 scarf of yoke ring cavity (Fig. 2-1 and Fig. 2-2 show) and second Second reed frame 61 of reed 6 is located between the chimeric stack side 72 of 5 and second magnet yoke ring 7 of magnetite.At the second magnet yoke ring bottom The edge of the lens carrier matching hole 711 of wall 71 is vertically arranged with one group of quantity and lens with the second magnet yoke ring bottom wall 71 4 electromagnetic coupling of carrier stretches into the corresponding second magnet yoke ring yoke valve 711 of 422 location of equal of slot, is set in the embodiment of the present invention There are four, the second magnet yoke ring yoke valve 711 is corresponding with 54 position of magnetite coupling surface of aforementioned magnetite 5, in the gap with magnetite 5 One uniform magnetic field of middle formation.The second magnet yoke ring yoke valve 711 contactlessly stretches into electromagnetic coupling and stretches into slot 422, and by line Circle 421 stretches into being partially contained in an aforementioned uniform magnetic field (as shown in Figure 4) of slot 422 in electromagnetic coupling, when 421 the past of coil When stating the introducing electric current of electrode end feet 23, electromagnetism will be occurred by the part coil that the second magnet yoke ring yoke valve 711 includes Coupling generates electromagnetic induction power, while the resultant force one in lens carrier 4 is applied to the first reed 3 and the second reed 6 It works, and drive lens carrier 4 is moved forward and backward the focusing purpose for reaching this lens driving apparatus.Because described one group second Magnet yoke ring yoke valve 711 is parallel uniform magnetic field with one group of magnetite 5 magnetic field formed in 421 electromagnetism gap of coil, when one Group 5 magnetic pole shape of magnetite is consistent, and one group of second magnet yoke ring yoke 711 shape of valve is consistent, ensure that each magnetic field to the maximum extent Distribution is consistent, therefore is also that ensure that the consistent of each electromagnetic induction power intensity to the maximum extent, generally uses holohedral symmetry form cloth Each magnetic field position is put, in embodiments of the present invention, the four corners position of the holohedral symmetry position of yoke ring cavity 13 is provided with four Four holohedral symmetry uniform magnetic fields of a magnetic field, i.e. 5 and second magnet yoke ring yoke valve 711 of magnetite composition, therefore, when electromagnetic coupling, produces Four raw electromagnetic induction power on the coil 421 in lens carrier 4 holohedral symmetry arrangement and intensity consistently with optical axis direction Four consistent component, such setting ensure that lens carrier 4 along the optical axis in optical axis direction motion process to the maximum extent Spend precision.The second aforementioned magnet yoke ring is fitted into stack side 72 as octagon, but may also be other shapes.
As shown in figure 4, aforementioned second magnet yoke ring 7 and 1 chimeric composition enclosure space of the first magnet yoke ring and composition resultant field, The second magnet yoke ring yoke valve 711 and the magnetite 5 form uniform magnetic field, however common knowledge, inevitably equal The edge magnetite 5 in even magnetic field still has the leakage field that distributes everywhere, and the magnetic field at leakage field is because be not involved in the electromagnetism sense of coil 421 Should act as invalid magnetic field, due to the second magnet yoke ring yoke valve 711 shape thus magnetite 5 towards 11 side of the first magnet yoke ring bottom wall To magnetic flux leakage it is maximum, which couples to form with the first magnet yoke ring dust ring 112 of the first magnet yoke ring 1 passes through coil 721 effective magnetic field, the effective magnetic field and the second magnet yoke ring yoke valve 711 are combined into compound with the uniform magnetic field that magnetite 5 is formed Magnetic field substantially increases effective electromagnetic induction efficiency of coil 421 as supplement, and lens driver of the present invention can be made real Now further micromation.
Aforementioned second magnet yoke ring, 7 and first magnet yoke ring 1 forms the space of closing, and aforementioned coil 421 is all around wrapped It encloses and forms an electro-magnetic shielding cover, so as to which coil 421 is avoided to generate electromagnetic radiation to the maximum extent, to zero of surrounding The bad electromagnetic interference of part.
In above-mentioned assembling, in four, the corner triangle recess region after the second magnet yoke ring 7 is chimeric with the first magnet yoke ring 1 Glue, that is, adhesive is injected, the second magnet yoke ring 7 reliably to be made to be fixed with the first magnet yoke ring 1, and can also pass through the climing of glue Prolong infiltration and embody disposably that the second reed 6, magnetite 5,2 and first reed 3 of gasket is solid simultaneously with the first magnet yoke ring 1 respectively It is fixed, so as to embody quickness and high efficiency during assembling.
The positive and negative electrode line of aforementioned coil 421 is respectively welded at first, second reed petals 31,32 for forming the first reed 3 First, second coil pad 3131,3231 on, pass through the guiding of first, second reed petals spring silk 312,322 to first, second First, second electrode pad 3111,3211 on reed petals frame realizes the connection with electrode end feet 23 respectively, then by electrode End feet 23 is connected to external drive power supply, constitutes the electric loop of lens driver.When coil 421 is passed through electric current, Magnetite 5, first, second magnet yoke ring 1,6 form field coil 421 and induce electromagnetic force, carry lens under the promotion of electromagnetic force Body 4 is along optical axis direction displacement, and with the variation of displacement, the reaction force for the resultant force that first, second reed 3,6 is formed also becomes therewith Change, when the reaction force of the electromagnetic induction power and reed reaches balance, lens carrier 4 just stops displacement, so as to fulfill The focus function of camera.
In embodiments of the present invention, the first reed 3 and the second reed 6 apply the power that lens carrier 7 is previously applied respectively In the first support platform 43 and the second support platform 44 of lens carrier 4, and direction on the contrary, can select in this way rigidity compared with Big the first reed 3 and the second reed 6 is conducive to support the smooth motion of carrier 7, is beneficial to camera lens carrier optical axis degree precision It improves.
Fig. 1 is described it is found that the assembling of lens driver of the present invention or assembling sequence are as follows by above-mentioned：The first step, The first reed 3 being made of first, second reed petals 31,32 is placed on gasket 2, forms the first spring assembly；Second step, Coil 421 is set around in the coil brace 42 of lens carrier 4, forms rotor assembly；Third walks, by aforementioned first spring assembly The first reed petals carrier supported wing 313 and the second reed petals carrier supported wing 323 be respectively disposed on first of lens carrier 4 It supports on platform 43, and carries out rivet hot or be glued to fix, then the positive and negative electrode lead of coil 421 is distinguished solid welding in First Line lap welding On 3131 and second coil pad 3231 of disk；4th step, will be in the component placement to yoke ring cavity 13 of third step acquisition；5th Magnetite 5 is mounted on the four corners of yoke ring cavity 13 by step；6th step, the magnetic the second reed 6 being placed in the 5th step component On stone 5 and lens carrier 4 and make the second platform positioning column 441 and 6 carrier location fit hole of the second reed, 631 rivet hot or be glued solid It is fixed；7th step, it is the second magnet yoke ring 7 is chimeric with the first magnet yoke ring 1 and be placed on the second reed 6, then to four corners glue Connect fixation.So the device of the invention is with component is less, technique assembling is easier, performance more preferably lens driver.

Claims (9)

1. a kind of lens driver, it is characterised in that：
Including the first magnet yoke ring (1), gasket (2), the first reed (3), lens carrier (4), magnetite (5), the second reed (6), Two magnet yoke rings (7)；
Wherein, second magnet yoke ring (7) has the second magnet yoke ring bottom wall (71), the second magnet yoke ring bottom wall (71) and described the First magnet yoke ring bottom wall (11) of one magnet yoke ring (1) is parallel, is offered at the position placed in the middle of the second magnet yoke ring bottom wall (71) With lens carrier (4) cooperation lens carrier matching hole (712) and communicated with yoke ring cavity (13), the lens carrier coordinate Hole (712) edge and position stretch into that the corresponding quantity of slot (422) is equal to be symmetrically equipped with the electromagnetic coupling of lens carrier (4) Second magnet yoke ring yoke valve (711), the second magnet yoke ring yoke valve (711) are formed towards yoke ring cavity (13) vertical protrusion Magnetic coupling yoke valve and rectangular, the electromagnetic coupling that the second magnet yoke ring yoke valve (711) contactlessly extend into stretch into slot (422) and Its couple planar is towards the magnetic pole coupling surface (54) of magnetite (5)；First magnet yoke ring (1) and second magnet yoke ring (7) are embedding It closes placement and forms resultant field on corresponding coil (421) corresponding position with the magnetite (5)；
First reed petals frame (311) of the first reed of placement (3) and the second reed petals frame (321) in the gasket (2) The second plane of gasket (24) and the first reed petals carrier supported wing (313) of placement and the second reed petals carrier supported wing (323) The plane of the first support platform (43) of lens carrier (4) be staggered and on the basis of first magnet yoke ring bottom wall (11) medial surface away from More than the distance of the plane of first support platform (43) with a distance from second plane of gasket (24), the first reed is formed (3) initial thrust of the lens carrier (4) backwards to the first magnet yoke ring bottom wall (11) is given.
2. lens driver according to claim 1, it is characterised in that the second reed carrier supported ring (63) it is parallel And the plane patch of the second support platform (44) towards the plane and lens carrier (4) of aforementioned first magnet yoke ring bottom wall (11) is touched, It is superimposed upon second the first plane of reed (612) of the first plane of magnetite (52) and is placed in described the of the second support platform (44) Two reed carrier supported ring (63) planes form the of the lens carrier (4) described in distance on the basis of the first magnet yoke ring bottom wall (11) The distance of two support platforms (44) is more than the distance of the first plane of magnetite (52), forms the second reed (6) initially to lens carrier (4) apply the thrust towards the first magnet yoke ring bottom wall (11).
3. lens driver according to claim 2, it is characterised in that the first reed (3) is initial to lens carrier (4) Apply the power backwards to the first magnet yoke ring bottom wall (11), and the second reed (6) initially applies towards the first yoke lens carrier (4) The power of ring bottom wall (11), the first reed (3) and the second reed (6) are initially applied to the direction of the power in lens carrier (4) respectively It is opposite each other, and the active force of the first reed (3) and the second reed (6) is kept when moving each other in lens carrier (4) On the contrary.
4. lens driver according to claim 1, it is characterised in that：Wherein first magnet yoke ring (1), gabarit four Side column body, first magnet yoke ring (1) composition have the first magnet yoke ring bottom wall (11) and yoke ring cavity side wall (12) and the first yoke The inner space yoke ring cavity (13) that ring bottom wall (11) and yoke ring cavity side wall (12) are formed, in the first magnet yoke ring bottom wall (11) Central part offers the circular lens carrier matching hole (111) communicated with yoke ring cavity (13)；The yoke ring cavity (13) For four side cylinder spaces, at the edge of the lens carrier matching hole (111) towards yoke ring cavity (13) the first magnetic of vertical protrusion Yoke ring dust ring (112), the first magnet yoke ring bottom wall (11) and yoke ring cavity side wall (12), first magnet yoke ring dust ring (112) structure Into dust arrest groove (14)；In the first support platform (43) of the lens carrier (4) at lens barrel (41) edge with thread also The dust-proof hoop (432) of the first platform is provided with, first platform is dust-proof to bind round first magnet yoke ring bottom wall (11) protrusion of (432) direction, with The first magnet yoke ring dust ring (112) matches to form dustband.
5. lens driver according to claim 4, it is characterised in that：In the first support of the lens carrier (4) The first platform positive stop lug boss (434) is also arranged symmetrically on platform (43), the first platform positive stop lug boss (434) is towards aforementioned first Magnet yoke ring bottom wall (11) protrusion, and projecting height is more than the projecting height of the dust-proof hoop (432) of first platform.
6. lens driver according to claim 1, it is characterised in that the neighbouring first coil of first reed (3) Pad (3132) position is provided with the first coil pads wire card slot that (421) one contact conductor of coil is facilitated to be welded and fixed (3133) and neighbouring second coil pad (3232) position is provided with that coil (421) another contact conductor is facilitated to be welded and fixed Two coil pads wire card slot (3233).
7. lens driver according to claim 6, it is characterised in that lead card slot is both sides two-way opening or unilateral Unidirectional opening, the position of opening is the center that the contact conductor of coil (421) is guided into pad.
8. lens driver according to claim 1, it is characterised in that in the first plane of gasket of the gasket (2) (21) group with combination function is respectively offered on the Delta Region position of the four corners of the second plane of back side gasket (24) Boss (241) is closed, which has irregular recess, and each combination Sunken the first reed (3) being placed among being recessed is positioned boss (241) and fool proof, meanwhile, the height of the combination boss (241) is big Thickness in the first reed (3), the right angle frame that the neighboring of the combination boss (241) is formed constitute the first reed of guarantee (3) being isolated between the first magnet yoke ring (1), the first reed (3) and magnetite (5).
9. lens driver according to claim 1, it is characterised in that gasket (2) first plane of gasket (21) Each corner positions be equipped with polygon boss (211), polygon boss (211) shape with electrode end feet (23) shape and with it is described The shape of the electrode end feet relief hole (113) of first magnet yoke ring (1) is equipped with, and the polygon boss (211) wraps electricity For extreme foot (23) to ensure that electrode end feet (23) is isolated with the first magnet yoke ring (1), which passes through electrode end feet The surface that relief hole (113) is protruded afterwards on the outside of the first magnet yoke ring bottom wall (11) forms the positioning fixed frame side of other external parts.
CN201610099956.0A 2016-02-23 2016-02-23 Lens driver Active CN105629424B (en)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105629424B (en) * 2016-02-23 2018-06-22 绵阳安和光电科技有限公司 Lens driver
CN108072957B (en) * 2016-11-14 2022-05-24 台湾东电化股份有限公司 Optical drive mechanism
CN109960000B (en) * 2017-12-22 2024-02-02 惠州萨至德光电科技有限公司 Lens driving device
CN108757793A (en) * 2018-08-10 2018-11-06 安庆安簧汽车零部件有限公司 A kind of variation rigidity that anti-side is turned round lacks leaf spring and its preparation process
CN109510933B (en) * 2018-12-25 2024-03-19 苏州智华汽车电子有限公司 Vehicle-mounted camera
CN109597182A (en) * 2018-12-27 2019-04-09 上海比路电子股份有限公司 Lens drive motor, camera and mobile terminal apparatus
CN116819915B (en) * 2023-08-31 2023-11-14 光科芯图(北京)科技有限公司 Projection objective capable of adjusting axial parameters and exposure equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201273955Y (en) * 2008-08-25 2009-07-15 金龙控股集团有限公司 Lens driving apparatus
CN102315748A (en) * 2010-07-06 2012-01-11 Lg伊诺特有限公司 Voice coil motor, coil block and manufacturing approach thereof
CN102810968A (en) * 2011-05-30 2012-12-05 鸿富锦精密工业（深圳）有限公司 Voice coil motor actuator and picture taking device
CN103001448A (en) * 2012-09-29 2013-03-27 苏州贝腾特电子科技有限公司 Miniature drive motor
CN103091813A (en) * 2013-01-23 2013-05-08 苏州久易光电科技有限公司 Lens driving device
CN103760656A (en) * 2014-01-23 2014-04-30 苏州久易光电科技有限公司 Optical axis degree test method of lens drive device
CN104849833A (en) * 2015-05-19 2015-08-19 苏州久易光电科技有限公司 Compact dustproof lens driving device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008032768A (en) * 2006-07-26 2008-02-14 Matsushita Electric Ind Co Ltd Lens actuator
JP2009282090A (en) * 2008-05-20 2009-12-03 Mitsumi Electric Co Ltd Lens driving device
JP5765362B2 (en) * 2013-04-11 2015-08-19 Tdk株式会社 Lens holding device
CN103792642B (en) * 2014-01-23 2015-12-09 苏州久易光电科技有限公司 Lens driver
CN105629424B (en) * 2016-02-23 2018-06-22 绵阳安和光电科技有限公司 Lens driver

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201273955Y (en) * 2008-08-25 2009-07-15 金龙控股集团有限公司 Lens driving apparatus
CN102315748A (en) * 2010-07-06 2012-01-11 Lg伊诺特有限公司 Voice coil motor, coil block and manufacturing approach thereof
CN102810968A (en) * 2011-05-30 2012-12-05 鸿富锦精密工业（深圳）有限公司 Voice coil motor actuator and picture taking device
CN103001448A (en) * 2012-09-29 2013-03-27 苏州贝腾特电子科技有限公司 Miniature drive motor
CN103091813A (en) * 2013-01-23 2013-05-08 苏州久易光电科技有限公司 Lens driving device
CN103760656A (en) * 2014-01-23 2014-04-30 苏州久易光电科技有限公司 Optical axis degree test method of lens drive device
CN104849833A (en) * 2015-05-19 2015-08-19 苏州久易光电科技有限公司 Compact dustproof lens driving device

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Patentee before: MIANYANG ANHE OPTOELECTRONICS TECHNOLOGY Co.,Ltd.