WO2019071687A1 - 一种双透镜驱动装置 - Google Patents

一种双透镜驱动装置 Download PDF

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Publication number
WO2019071687A1
WO2019071687A1 PCT/CN2017/109985 CN2017109985W WO2019071687A1 WO 2019071687 A1 WO2019071687 A1 WO 2019071687A1 CN 2017109985 W CN2017109985 W CN 2017109985W WO 2019071687 A1 WO2019071687 A1 WO 2019071687A1
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WO
WIPO (PCT)
Prior art keywords
driving device
lens driving
connecting plate
yoke
lens carrier
Prior art date
Application number
PCT/CN2017/109985
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English (en)
French (fr)
Inventor
王哲
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绵阳安和光电科技有限公司
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Application filed by 绵阳安和光电科技有限公司 filed Critical 绵阳安和光电科技有限公司
Publication of WO2019071687A1 publication Critical patent/WO2019071687A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing

Definitions

  • the present invention relates to the field of micro linear motor technology, and in particular to a dual lens driving device.
  • the lens driving device is generally applied to a mobile phone camera module, and the existing lens driving device is generally a single lens driving device. Even in recent years, the lens driving device applied to the dual camera module uses a pair of single lens driving devices. Composition.
  • the lens driving device requires the displacement accuracy of the focus to be nominal in micrometer units. Therefore, the driving characteristics of each lens driving device are largely affected by the dimensional accuracy of the components and the assembly precision, and a pair of single lenses.
  • the combination of the drive devices makes it difficult to meet the requirements for use in terms of accuracy.
  • the two single lens driving devices are applied to the dual camera module, and there is also a defect of electromagnetic field interference between the two single lens driving devices, and there is also a defect that the spatial distance between the two lenses is too large. In short, one The combination of single lens driving devices and poor shooting performance are not conducive to the wide development of dual camera module technology.
  • a dual lens driving device comprising a yoke housing and a lens carrier assembly, an elastic component and a plurality of magnets disposed inside the yoke housing, and two sets of the lens carrier assemblies Arranging, two sets of the lens carrier assemblies are coupled to the yoke housing by the elastic assembly, each of the magnets facing two sets of the lens carrier assemblies and spaced from the lens carrier assembly .
  • the number of the magnets is two, and the two magnets are disposed in parallel with each other outside the two sets of the lens carrier assemblies.
  • the magnet is elongated, and the length of the magnet is greater than or equal to the sum of the lengths of the lens carrier assemblies.
  • the length of the magnet is equal to the length of the two lens carrier assemblies after side by side.
  • the yoke housing includes a yoke ring that is open at one end and a terminal mount that is attached to the opening of the yoke ring, and the yoke ring is provided with two first through holes, each of which is provided A yoke plate is disposed on each of opposite sides of the first through hole, and the yoke plate extends toward one side of the terminal mount, and the yoke plate is disposed in parallel with the magnet.
  • the yoke ring includes a top wall and a side wall, the side wall is a rectangular ring shape, one end of the side wall is connected to an edge of the top wall, and the other end of the side wall is opposite to the terminal
  • the yoke plate is detachably connected, the yoke plate has a rectangular plate shape, and a long side of the yoke plate is connected to the top wall, and a length of a short side of the yoke plate is smaller than a height of the side wall .
  • a plurality of first protrusions are disposed on an inner surface of the top wall, the first protrusions are configured to connect the elastic components, and the plurality of the first protrusions are respectively located in the two The periphery of a through hole.
  • the terminal mount includes a bottom wall, a pad and a power receiving terminal, the bottom wall is made of an insulating material, the bottom wall is provided with two second through holes, and the two second through holes One-to-one correspondence with the two first through holes, two peripheral pads are disposed on the periphery of each of the second through holes, and one of the electrical terminals is connected to each of the pads.
  • the terminal mount further includes a plurality of hooks, one end of each of the hooks being connected to an outer surface of the bottom wall and the other end being configured to be snapped onto the side wall.
  • an edge position on the inner surface of the bottom wall is provided with a plurality of second protrusions, and the second protrusion It is configured to connect the elastic component.
  • the elastic assembly includes a front spring piece and a rear spring piece assembly, the lens carrier assembly including a front end face and a rear end face, the front end face being coupled to the yoke housing by the front spring piece, A rear end face is coupled to the yoke housing by the rear leaf spring assembly.
  • the front spring piece includes an inner ring, an outer ring and a first spring wire
  • the outer ring is a closed annular structure
  • the outer ring is configured to be coupled to the yoke housing
  • the inner The number of the rings is two
  • two of the inner rings are disposed inside the outer ring
  • the two inner rings are respectively connected to the front end faces of the two lens carrier assemblies, each of the inner ends
  • the ring is coupled to the outer ring by a plurality of the first spring wires.
  • the inner ring is a closed annular structure, and one end of each of the first spring wires is connected to an outer surface of the inner ring and the other end is connected to an inner surface of the outer ring.
  • the outer ring is a rectangular frame-shaped structure, the outer ring includes two first connecting plates and two first connecting wires, two of the first connecting plates and two of the first connecting wires Alternately connected end to end, wherein two of the first connecting plates are oppositely disposed, and the two first connecting wires are oppositely disposed.
  • a first connecting wire is further connected between the middle portions of the two first connecting plates, and the first connecting wire located at the middle portion divides the inside of the outer ring into two rectangular spaces, each One of the inner rings is disposed in the rectangular space.
  • the inner ring includes two second connecting plates and two second connecting wires, and the two second connecting plates and the two second connecting wires are alternately connected end to end, wherein two of the two The second connecting plates are oppositely disposed, and the two second connecting wires are oppositely disposed.
  • the number of the rear spring piece assemblies is two, and the two rear spring piece assemblies are spaced apart from each other, and the two rear spring piece assemblies are respectively connected to the terminal frame and respectively connected to the two groups.
  • the rear leaf spring assembly is electrically coupled to a coil in the lens carrier assembly.
  • each of the rear spring piece assemblies includes two rear spring pieces, and the two of the spring pieces are opposite each other
  • the rear spring piece includes a third connecting plate, a fourth connecting plate, a second spring wire, a third spring wire and an inner connecting plate, wherein the third connecting plate is disposed opposite to the fourth connecting plate.
  • the third connecting plate and the fourth connecting plate are connected to the terminal frame, and the inner connecting plate is located between the third connecting plate and the fourth connecting plate, and is adjacent to the third a connecting plate, the inner connecting plate is coupled to the rear end surface of the lens carrier assembly, the inner connecting plate includes a first end and a second end, and the distance from the first end to the third connecting plate a distance from the second end to the third connecting plate, the second spring wire is connected between the first end and the third connecting plate, and the third spring wire is connected to the first Between the two ends and the fourth connecting plate.
  • the two rear spring pieces are surrounded by a substantially quadrangular shape
  • two of the third connecting plates are located at two ends of a diagonal line of the substantially quadrangular shape
  • the two fourth connecting plates are located at the substantially quadrangular shape.
  • two of the third spring wires are located on opposite sides of the frame shape.
  • each of the lens carrier assemblies further includes a coil, and two of the inner connecting plates of each of the rear leaf spring assemblies are electrically connected to both ends of the coil, respectively, each of the rear spring piece assemblies Two of the third connecting plates or two of the fourth connecting plates are electrically connected to the electrical terminals.
  • each of the lens carrier assemblies includes a carrier body and a coil
  • the carrier body includes an outer peripheral surface and opposite front and rear end faces
  • the carrier body is provided with a receiving cavity
  • the receiving cavity penetrates through the cavity a front end surface and a rear end surface
  • the accommodating cavity is configured to load a lens
  • an outer circumferential surface of the carrier body is provided with an annular groove
  • the coil is wound in the annular groove
  • the front end surface is opposite
  • a groove is formed on both sides, and the groove is configured to accommodate the yoke plate.
  • the groove is in communication with the annular groove, the distance from the groove to the center of the carrier body assembly is smaller than the distance from the annular groove to the center of the carrier body assembly, the coil forming the a side wall of the groove.
  • the beneficial effects of the dual lens driving device provided by the present invention include, for example, that the dual lens driving device provided by the present embodiment does not simply combine two single lens driving devices together, but utilizes a yoke housing, an elastic component and a magnet.
  • the magnetic fields are formed together, and each magnet simultaneously faces two sets of lens carrier assemblies to form a driving magnetic field for the two sets of lens carrier assemblies, so that there is no defect of electromagnetic field interference between the two lens carrier assemblies.
  • Two sets of lens carrier assemblies are arranged side by side in the yoke housing, and the spatial distance between the two lenses is reduced, greatly The consistency of the displacement characteristics of the two lens carrier components is ensured, which is beneficial to the paired modulation of the dual camera module and improves the shooting performance.
  • FIG. 1 is a schematic diagram of an overall structure of a dual lens driving device according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded view of a dual lens driving device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a first view of the yoke ring of FIG. 2.
  • FIG. 4 is a schematic structural view of a second perspective view of the yoke ring of FIG. 2.
  • FIG. 5 is a schematic structural view of the front spring piece of FIG. 2.
  • FIG. 5 is a schematic structural view of the front spring piece of FIG. 2.
  • FIG. 6 is a schematic structural view of a first view of the lens carrier assembly of FIG. 2.
  • Figure 7 is a schematic view showing the structure of the lens carrier assembly of Figure 2 in a second perspective.
  • Figure 8 is a schematic view showing the structure of the rear spring piece assembly of Figure 2;
  • FIG. 9 is a schematic structural view of the terminal mount of FIG. 2.
  • FIG. 9 is a schematic structural view of the terminal mount of FIG. 2.
  • Icon 100-double lens driving device; 1-yoke ring; 11-top wall; 111-first through hole; 112-first protrusion; 12-side wall; 13-yoke plate; 2-front spring piece 21-outer ring; 211-first connecting plate; 212-first connecting wire; 22-inner ring; 221-second connecting plate; 222-second connecting wire; 23-first spring wire; 3-lens carrier Component; 31-carrier body; 311-front end face; 312-first recessed zone; 313-rear end face; 314-second recessed zone; 315-positioning projection; 316-outer peripheral surface; 317-annular groove; Slot; 319-notch; 320-receiving Cavity; 33-coil; 4-magnet; 5-rear spring piece assembly; 51-rear spring piece; 511-third connection plate; 512-fourth connection plate; 513-second spring wire; 514-third spring wire ; 515 - internal connecting plate; 5151 - first end; 5152 -
  • the embodiment provides a dual lens driving device 100.
  • the application of the dual lens driving device 100 is not limited to a high pixel micro digital camera with an auto focus function, and can be applied to other functions requiring a shooting function.
  • Equipment such as a video camera.
  • the dual lens driving device 100 includes a yoke housing and a lens carrier assembly 3, an elastic member, and a magnet 4 disposed inside the yoke housing.
  • the yoke housing includes a yoke ring 1 that is open at one end and a terminal mount 6 that is attached to the opening of the yoke ring 1.
  • the yoke ring 1 is detachably connected to the terminal block 6 and is accommodated therein. space.
  • the elastic assembly includes a front spring piece 2 and a rear spring piece assembly 5.
  • the two sets of lens carrier assemblies 3 are arranged side by side along the long side of the side wall 12 of the yoke ring 1, and the gap between the two lens carrier assemblies 3 can be as small as possible, or even the two are in contact with each other, thereby ensuring two sets of lens carriers as much as possible. Consistency of component 3 displacement.
  • the two sets of lens carrier assemblies 3 are coupled to the yoke housing by resilient members.
  • the lens carrier assembly 3 includes a front end surface 311 and a rear end surface 313.
  • the front end surface 311 is connected to the top wall 11 of the yoke ring 1 through the front spring piece 2, and the rear end surface 313 is connected to the terminal frame 6 through the rear spring piece assembly 5.
  • the two sets of lens carrier assemblies 3 are linearly movable in the front-rear direction under the elastic support of the front spring piece 2 and the rear spring piece assembly 5 to perform focusing.
  • the number of the rear spring piece assemblies 5 is two, and the two rear spring piece assemblies 5 are spaced apart from each other.
  • Each of the rear leaf spring assemblies 5 is coupled to a terminal mount 6 and a rear end surface 313 of a lens carrier assembly 3, respectively, and the rear spring tab assembly 5 is electrically coupled to the coils 33 in the lens carrier assembly 3.
  • the coil 33 in one lens carrier assembly 3 can be powered by a rear leaf spring assembly 5.
  • the number of magnets 4 is two, and each magnet 4 faces both sets of lens carrier assemblies 3 at the same time and is spaced apart from the lens carrier assembly 3.
  • the two magnets 4 are disposed outside the two lens carrier assemblies 3 in parallel with each other, and the magnets 4 are disposed in parallel with the long sides of the side walls 12 of the yoke ring 1.
  • the magnet 4 is elongated and the length of the magnet 4 is greater than the length of the lens carrier assembly 3.
  • the length of the magnet 4 is greater than or equal to two lens carrier groups The sum of the lengths of the pieces 3 after side by side. That is to say, the two lens carrier assemblies 3 are located together in a magnetic field formed by the two magnets 4, or the two lens carrier assemblies 3 share two magnets 4.
  • the two lens carrier assemblies 3 share two magnets 4 to avoid unintended interference between the magnetic fields and to attenuate the effects of other components on the magnetic field.
  • the yoke ring 1 includes a top wall 11, a side wall 12, and a yoke plate 13, and the top wall 11, the side wall 12, and the yoke plate 13 are integrally formed.
  • the side wall 12 has a rectangular ring shape, one end of the side wall 12 is connected to the edge of the top wall 11, and the other end of the side wall 12 is for detachable connection with the terminal frame 6.
  • Two first through holes 111 are defined in the top wall 11, and a yoke plate 13 is disposed on each of the opposite sides of each of the first through holes 111.
  • the yoke plate 13 extends toward the side of the terminal frame 6, and the yoke plate 13 is The long sides of the side walls 12 are arranged in parallel.
  • the yoke plate 13 has a rectangular plate shape, and the long side of the yoke plate 13 is connected to the top wall 11, and the length of the short side of the yoke plate 13 is smaller than the height of the side wall 12.
  • a magnet 4 is disposed between the two yoke plates 13 and the side wall 12, and preferably, the magnet 4 is mounted on the side wall 12.
  • the two magnets 4 and the opposite two yoke plates 13 form a pair of magnetic field spaces, forming a total of two pairs of magnetic field spaces.
  • a pair of magnetic field spaces are used to control the displacement of one lens carrier assembly 3.
  • the magnetic field strengths of the two pairs of magnetic field spaces are the same, which can make the displacement characteristics of the two lens carrier assemblies 3 highly uniform, which is beneficial to the modulation optimization of the dual camera module and improve the shooting performance.
  • the inner surface of the top wall 11 is provided with a plurality of first protrusions 112 for connecting the front spring pieces 2, and the plurality of first protrusions 112 are respectively located at the outer periphery of the two first through holes 111.
  • each of the four corner positions of the top wall 11 is provided with a first protrusion 112, and a central portion of each of the long sides of the top wall 11 is provided with a first protrusion 112, and a total of six first protrusions 112 are formed, and Symmetrically disposed on the two long sides of the top wall 11.
  • the lens carrier assembly 3 is attached to the first projection 112 by the front spring piece 2, which makes the elastic connection between the lens carrier assembly 3 and the top wall 11 more stable, and at the same time provides a large movement space for the lens carrier assembly 3.
  • the front spring piece 2 includes an inner ring 22, an outer ring 21 and a first spring wire 23.
  • the outer ring 21 has a rectangular frame-shaped structure, and the outer ring 21 is for connecting to the top wall 11 of the yoke ring 1.
  • the number of the inner rings 22 is two, and the two inner rings 22 are disposed inside the outer ring 21, and the two inner rings 22 are respectively connected to the front end surface 311 of one lens carrier assembly 3, and each inner ring 22 passes through a plurality of strips.
  • the first spring wire 23 is coupled to the outer ring 21, and the inner ring 22 is movable relative to the outer ring 21 by the elastic deformation of the first spring wire 23.
  • the inner ring 22 is a closed annular structure having a large rigidity.
  • the inner surface of the inner ring 22 is enclosed In a circular shape, one end of the first spring wire 23 is coupled to the outer surface of the inner ring 22, and the other end of the first spring wire 23 is coupled to the inner surface of the outer ring 21.
  • a gap is provided between the first spring wire 23 extending along the long side of the yoke ring 1 and the inner ring 22, and the yoke plate 13 can be inserted into the lens carrier assembly 3 through the gap.
  • the outer ring 21 includes two first connecting plates 211 and two first connecting wires 212.
  • the two first connecting plates 211 and the two first connecting wires 212 are connected end to end to form a closed annular structure.
  • the two first connecting plates 211 are oppositely disposed, and the two first connecting wires 212 are oppositely disposed.
  • the first connecting plate 211 is configured to be connected to the first protrusion 112 on the long side of the top wall 11.
  • the width of the first connecting plate 211 is greater than the width of the first connecting wire 212, thereby improving the rigidity of the first connecting plate 211 and the The strength of the connection between the connecting plate 211 and the top wall 11.
  • the first connecting wire 212 has a shorter length and a smaller width can save material and save cost.
  • a first connecting wire 212 is also connected between the middle portions of the two first connecting plates 211, so that the structural strength of the front spring piece 2 can be further improved.
  • the first connecting wire 212 located in the middle divides the inside of the outer ring 21 into two rectangular spaces, and an inner ring 22 is disposed in each rectangular space.
  • the inner ring 22 includes two second connecting plates 221 and two second connecting wires 222.
  • the two second connecting plates 221 and the two second connecting wires 222 are connected end to end to form a closed annular structure.
  • the two second connecting plates 221 are oppositely disposed, and the two second connecting wires 222 are oppositely disposed.
  • the lens carrier assembly 3 includes a carrier body 31 and a coil 33.
  • the carrier body 31 has a cubic shape, and the four corner positions of the carrier body 31 are chamfered.
  • the carrier body 31 includes an outer peripheral surface 316 and opposite front end faces 311 and rear end faces 313.
  • the accommodating cavity 320 is disposed on the carrier body 31.
  • the accommodating cavity 320 extends through the front end surface 311 and the rear end surface 313.
  • the accommodating cavity 320 is used for loading the lens.
  • the outer peripheral surface 316 of the carrier body 31 is provided with an annular groove 317 in which the coil 33 is wound.
  • the opposite sides of the front end surface 311 are each provided with a recess 318 for receiving the yoke plate 13.
  • Two yoke plates 13 on either side of a first through hole 111 are correspondingly inserted into two recesses 318 on a mirror carrier assembly.
  • the accommodation space of the groove 318 has a rectangular parallelepiped shape.
  • the groove 318 is in communication with the annular groove 317, the groove 318 is adjacent the center of the assembly of the carrier body 31 with respect to the annular groove 317, and the coil 33 forms a side wall of the groove 318.
  • a pair of wire bundles on the coil 33 close to the groove 318 are located in the magnetic field formed by the two yoke plates 13 and the two magnets 4, and the wire bundle is not in contact with the yoke plate 13 and the magnet 4.
  • Two notches 319 are defined in the side wall of the annular groove 317.
  • the notch 319 extends from the annular groove 317 to the rear end surface 313.
  • Two notches 319 are located on opposite sides of the rear end surface 313, and two notches 319 are used to connect the two coils 33.
  • the terminals are led out of the annular groove 317 to facilitate electrical connection of the coil 33 to the rear leaf spring assembly 5.
  • the peripheral edge region of the front end surface 311 is a first recessed region 312 for connecting the front spring piece 2.
  • the inner ring 22 of the front spring piece 2 is connected in the first recessed area 312, and the inner ring 22 can be prevented from being displaced on the front end surface 311, and the supporting force of the carrier main body 31 is balanced.
  • the peripheral edge region of the rear end surface 313 is a second recessed region 314 for connecting the rear leaf spring assembly 5.
  • a positioning protrusion 315 is disposed in the second recessed area 314 for fixing the rear leaf spring assembly 5.
  • the rear leaf spring assembly 5 is coupled in the second recessed portion 314 to prevent the rear leaf spring assembly 5 from being displaced on the rear end surface 313 and to balance the supporting force of the carrier main body 31.
  • each rear leaf spring assembly 5 includes two rear spring pieces 51.
  • the two spring pieces are relatively spaced apart from each other.
  • the rear spring piece 51 includes a third connecting plate 511, a fourth connecting plate 512, and a second spring.
  • the wire 513, the third spring wire 514 and the inner connecting plate 515, the third connecting plate 511 and the fourth connecting plate 512 are disposed opposite to each other, and the third connecting plate 511 and the fourth connecting plate 512 are connected to the terminal frame 6, and the inner connecting is
  • the plate 515 is located between the third connecting plate 511 and the fourth connecting plate 512 and adjacent to the third connecting plate 511.
  • the inner connecting plate 515 is connected to the rear end surface 313 of the lens carrier assembly 3.
  • the inner connecting plate 515 includes a first end 5151 and a second end 5152.
  • the first end 5151 is away from the third connecting plate 511 with respect to the second end 5152.
  • the second spring wire 513 is connected between the first end 5151 and the third connecting plate 511.
  • the third spring wire 514 is coupled between the second end 5152 and the fourth connecting plate 512.
  • the two rear spring pieces 51 are frame-shaped (generally quadrangular), the two third connecting plates 511 are located at one end of one diagonal of the frame shape, and the two fourth connecting plates 512 are located at the other diagonal of the frame shape. At both ends, two third spring wires 514 are located on opposite sides of the frame shape.
  • the frame shape corresponds to the shape of the carrier body 31, and the two inner connecting plates 515 located inside the frame shape are connected to the carrier body 31, and the two third connecting plates 511 and the two fourth connecting plates 512 located at the periphery of the frame shape are connected at On the terminal block 6, the supporting force of the two rear spring pieces 51 to the carrier body 31 is equalized.
  • each rear leaf spring assembly 5 Two of the inner connecting plates 515 of each rear leaf spring assembly 5 are electrically connected to the two terminals of the coil 33, respectively, two third connecting plates 511 and two fourth connecting plates of each rear spring piece assembly 5 512 and power
  • the terminals 63 are electrically connected, and each of the rear leaf spring assemblies 5 and the yoke ring 1 are insulated from each other. In this way, the coil 33 can be connected to the external power source through the rear leaf spring assembly 5, and the structure is simple and the connection is reliable.
  • the terminal frame 6 includes a bottom wall 61, a pad 62, a power receiving terminal 63 and a hook 64.
  • the bottom wall 61 is made of an insulating material, and can effectively avoid short circuit between the respective electrical terminals 63.
  • the contour of the bottom wall 61 is matched with the shape of the side wall 12, and the edge portion on the inner surface of the bottom wall 61 is provided with a plurality of second protrusions 611 for connecting the rear leaf spring assembly 5, and the second protrusion 611 is long. Strip shape.
  • Two second through holes 612 are defined in the middle of the bottom wall 61.
  • the two second through holes 612 are in one-to-one correspondence with the two first through holes 111, and two pads are disposed on the periphery of each of the second through holes 612. 62.
  • the pads 62 are all disposed on the second protrusions 611, and one of the pads 62 is connected to each of the pads 62.
  • the electrical terminal 63 extends through the bottom wall 61 and projects from the outer surface of the bottom wall 61 for connection to an external power source.
  • four electrical terminals 63 are disposed on the same long side of the bottom wall 61.
  • Two mutually insulated rear spring pieces 51 of each of the rear leaf spring assemblies 5 are each connected to a power receiving terminal 63, so that the two terminals of each coil 33 are electrically connected to one of the power receiving terminals 63, respectively.
  • the terminal block 6 further includes a plurality of hooks 64, preferably six, and three of the long sides of the bottom wall 61 are provided.
  • One end of the hook 64 is connected to the outer surface of the bottom wall 61. Referring to FIG. 1, the other end of the hook 64 is used for snapping onto the side wall 12, thereby ensuring that the yoke ring 1 and the terminal frame 6 are sufficiently rounded.
  • the accommodation space preferably six, and three of the long sides of the bottom wall 61 are provided.
  • the corresponding first through hole 111, the second through hole 612, and the accommodating cavity 320 on the carrier body 31 are located on the same optical axis.
  • the other set of first through holes 111, second through holes 612, and accommodating cavity 320 are located on the other optical axis.
  • the two optical axes are parallel to each other. Thereby, the lenses in the two carrier bodies 31 are ensured to have uniform optical properties.
  • the working principle of the dual lens driving device 100 provided by this embodiment is as follows:
  • the two magnets 4 generate a magnetic field
  • the coils 33 of the two lens carrier assemblies 3 are respectively connected to the external power source through the two power terminals 63, and the coil 33 is moved by the electromagnetic force when the coil 33 is passed through the current.
  • the coil 33 drives the carrier body 31 to move.
  • the carrier body 31 Under the elastic force of the front spring piece 2 and the rear spring piece assembly 5, the carrier body 31 is linearly displaced before and after the carrier body 31, and the carrier body 31 is loaded with a lens.
  • the lens moves back and forth with the carrier body 31.
  • the displacement of the corresponding lens carrier assembly 3 can be accurately controlled to achieve the purpose of precise focusing.
  • the beneficial effects of the dual lens driving device 100 provided by this embodiment are as follows:
  • the dual lens driving device 100 does not simply combine the two single lens driving devices together, but uses the yoke ring 1, the front spring piece 2, and the two magnets 4 to form a magnetic field together, and also utilizes
  • the yoke ring 1 and the terminal mount 6 form an integral frame structure, which greatly ensures the uniformity of the displacement characteristics of the two lens carrier assemblies 3, and is advantageous for the paired modulation of the dual camera module.
  • the two magnets 4 are arranged outside the two lens carrier assemblies 3 in parallel with each other, and there is no electromagnetic field interference defect between the two single lens driving devices in the existing dual camera module, and the two lens carrier assemblies 3 Side by side, the spatial distance between the two lenses in the dual camera module can be reduced, which makes it easier to make the dual camera's camera performance superior.
  • the dual lens driving device 100 provided by the embodiment has a small volume and can reduce the required space. More importantly, the yoke ring 1, the front spring piece 2, the rear spring piece assembly 5, the magnet 4, and the terminal frame 6 are processed by simultaneously fabricated parts and assembled at the same time to maximize the size of the parts. The accuracy is consistent, thus ensuring maximum uniformity of the displacement characteristics of the two lenses. At the same time, it can also minimize parts and assembly costs and increase production efficiency.
  • the invention can eliminate the electromagnetic field interference between the lens carrier components of the plurality of cameras, shorten the spatial distance between the plurality of cameras, facilitate the paired modulation of the dual camera module, and improve the camera shooting performance.

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Abstract

一种双透镜驱动装置（100），涉及微型直线马达技术领域。双透镜驱动装置（100）包括磁轭壳体以及设置在磁轭壳体内部的透镜载体组件（3）、弹性组件和磁石（4），两组透镜载体组件（3）并排排布，两组透镜载体组件（3）通过弹性组件与磁轭壳体连接，每个磁石（4）同时面对两组透镜载体组件（3），并与透镜载体组件（3）间隔设置。双透镜驱动装置（100）中，利用磁轭壳体、弹性组件和磁石（4）共同形成磁场，每个磁石（4）均面对两组透镜载体组件（3），使两组透镜载体组件（3）之间不存在电磁场干扰的缺陷。两组透镜载体组件（3）并排排布设置在磁轭壳体内，两个镜头之间的空间距离缩小，极大地保证了两组透镜载体组件（3）位移特性的一致性，有利于双摄像头模组的配对调制。

Description

一种双透镜驱动装置
相关申请的交叉引用
本申请要求于2017年10月11日提交中国专利局的申请号为2017109437915、名称为“一种双透镜驱动装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及微型直线马达技术领域，具体而言，涉及一种双透镜驱动装置。
背景技术
目前，透镜驱动装置普遍应用在手机摄像头模组上，现有的透镜驱动装置一般是单镜头驱动装置，即使，近年来应用于双摄像头模组的镜头驱动装置，也是使用一对单透镜驱动装置构成。
但是，透镜驱动装置其要求对焦的位移精度是以微米级单位进行标称，所以，每一个透镜驱动装置的驱动特性，很大程度上受到零部件尺寸精度以及装配精度的影响，一对单透镜驱动装置组合使用，在精度上很难达到使用要求。并且，两个单透镜驱动装置应用在双摄像头模组上，还存在两个单透镜驱动装置之间存在电磁场干扰的缺陷，也存在两个镜头之间的空间距离过大的缺陷，总之，一对单透镜驱动装置组合使用，拍摄性能较差，不利于双摄像头模组技术的广泛发展。
因此，设计一种双透镜驱动装置以改善双摄像头模组内电磁场干扰的缺陷，以及两个镜头之间的间隙较大是目前亟待解决的技术难题。
发明内容
本发明的目的在于提供一种双透镜驱动装置，其旨在改善双摄像头模组内电磁场干扰的缺陷，以及两个镜头之间的间隙较大的技术问题。
本发明提供的一种技术方案：一种双透镜驱动装置包括磁轭壳体以及设置在所述磁轭壳体内部的透镜载体组件、弹性组件和多个磁石，两组所述透镜载体组件并 排排布，两组所述透镜载体组件通过所述弹性组件与所述磁轭壳体连接，每个所述磁石均面对两组所述透镜载体组件，并与所述透镜载体组件间隔设置。
进一步地，所述磁石的数量为两个，两个所述磁石相互平行间隔地设置于两组所述透镜载体组件外侧。
进一步地，所述磁石为长条形，所述磁石的长度大于或等于所述透镜载体组件的长度之和。
进一步地，所述磁石的长度等于两个所述透镜载体组件并排后的长度。
进一步地，所述磁轭壳体包括一端开口的磁轭环和盖装于所述磁轭环的开口的端子座架，所述磁轭环上开设有两个第一通孔，每个所述第一通孔的相对的两边各设置一个磁轭板，所述磁轭板向所述端子座架一侧延伸，所述磁轭板与所述磁石间隔平行设置。
进一步地，所述磁轭环包括顶壁和侧壁，所述侧壁为矩形环状，所述侧壁的一端连接在所述顶壁的边缘，所述侧壁的另一端与所述端子座架可拆卸地连接，所述磁轭板为矩形板状，所述磁轭板的长边连接在所述顶壁上，所述磁轭板的短边的长度小于所述侧壁的高度。
进一步地，所述顶壁的内表面上设置有多个第一凸起，所述第一凸起被配置为连接所述弹性组件，多个所述第一凸起分别位于两个所述第一通孔的外围。
进一步地，所述端子座架包括底壁、焊盘和接电端子，所述底壁采用绝缘材料制成，所述底壁开设有两个第二通孔，两个所述第二通孔与两个所述第一通孔一一对应，每个所述第二通孔的外围设置有两个所述焊盘，每个所述焊盘上连接有一个所述接电端子。
进一步地，所述端子座架还包括多个卡勾，每个所述卡勾的一端连接在所述底壁的外表面而另一端被配置为卡接在所述侧壁上。
进一步地，所述底壁的内表面上的边缘位置设置有多个第二凸起，所述第二凸 起被配置为连接所述弹性组件。
进一步地，所述弹性组件包括前弹簧片和后弹簧片组件，所述透镜载体组件包括前端面和后端面，所述前端面通过所述前弹簧片与所述磁轭壳体连接，所述后端面通过所述后弹簧片组件与所述磁轭壳体连接。
进一步地，所述前弹簧片包括内圈、外圈和第一弹簧丝，所述外圈为封闭的环形结构，所述外圈被配置为连接在所述磁轭壳体上，所述内圈的数量为两个，两个所述内圈设置在所述外圈的内部，两个所述内圈分别连接在两个所述透镜载体组件的所述前端面上，每个所述内圈通过多条所述第一弹簧丝与所述外圈连接。
进一步地，所述内圈为封闭的环形结构，每个所述第一弹簧丝的一端连接在所述内圈的外表面而另一端连接在所述外圈的内表面。
进一步地，所述外圈为矩形的框形结构，所述外圈包括两个第一连接板和两根第一连接丝，两个所述第一连接板和两根所述第一连接丝交替地首尾连接，其中，两个所述第一连接板相对设置，两根所述第一连接丝相对设置。
进一步地，两个所述第一连接板的中部之间还连接有一根所述第一连接丝，位于中部的所述第一连接丝将所述外圈的内部划分为两个矩形空间，每个所述矩形空间内设置一个所述内圈。
进一步地，所述内圈包括两个第二连接板和两根第二连接丝，两个所述第二连接板和两根所述第二连接丝交替地首尾连接，其中，两个所述第二连接板相对设置，两根所述第二连接丝相对设置。
进一步地，所述后弹簧片组件的数量为两个，两个所述后弹簧片组件间隔绝缘设置，两个所述后弹簧片组件分别连接在所述端子座架并且分别连接在两组所述透镜载体组件的所述后端面上，所述后弹簧片组件与所述透镜载体组件中的线圈电连接。
进一步地，每个所述后弹簧片组件包括两个后弹簧片，两个所述弹簧片相对间 隔设置，所述后弹簧片包括第三连接板、第四连接板、第二弹簧丝、第三弹簧丝和内部连接板，所述第三连接板与所述第四连接板平行相对设置，所述第三连接板与所述第四连接板连接在所述端子座架上，所述内部连接板位于所述第三连接板与所述第四连接板之间、且靠近所述第三连接板，所述内部连接板连接在所述透镜载体组件的所述后端面上，所述内部连接板包括第一端和第二端，所述第一端至所述第三连接板的距离大于所述第二端至所述第三连接板的距离，所述第二弹簧丝连接在所述第一端与所述第三连接板之间，所述第三弹簧丝连接在所述第二端与所述第四连接板之间。
进一步地，两个所述后弹簧片围成大体四边形，两个所述第三连接板位于所述大体四边形的一条对角线的两端，两个所述第四连接板位于所述大体四边形的另一条对角线的两端，两条所述第三弹簧丝位于所述框形的相对两边。
进一步地，每个所述透镜载体组件还包括线圈，每个所述后弹簧片组件中的两个所述内部连接板分别与所述线圈的两端电连接，每个所述后弹簧片组件中的两个所述第三连接板或两个所述第四连接板与所述接电端子电连接。
进一步地，每个所述透镜载体组件包括载体主体和线圈，所述载体主体包括外周面以及相对的前端面和后端面，所述载体主体上开设有容置腔，所述容置腔贯穿所述前端面和所述后端面，所述容置腔被配置为装载透镜，所述载体主体的外周面开设有环形槽，所述线圈缠绕在所述环形槽内，所述前端面上相对的两边均开设有凹槽，所述凹槽被配置为容纳磁轭板。
进一步地，所述凹槽与所述环形槽相通，所述凹槽至所述载体主体组件的中心的距离小于所述环形槽至所述载体主体组件的中心的距离，所述线圈形成所述凹槽的一侧壁。
本发明提供的双透镜驱动装置的有益效果例如包括：本实施例提供的双透镜驱动装置不是简单地将两个单镜头驱动装置合并组合在一起，而是利用磁轭壳体、弹性组件和磁石共同形成磁场，每个磁石同时面对两组透镜载体组件，构成对两组透镜载体组件的驱动磁场，使两组透镜载体组件之间不存在电磁场干扰的缺陷。两组透镜载体组件并排排布设置在磁轭壳体内，两个镜头之间的空间距离缩小，极大地 保证了两组透镜载体组件位移特性的一致性，有利于双摄像头模组的配对调制，提高了拍摄性能。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本发明实施例提供的双透镜驱动装置的整体结构示意图。
图2为本发明实施例提供的双透镜驱动装置的分解结构示意图。
图3为图2中磁轭环第一种视角的结构示意图。
图4为图2中磁轭环第二种视角的结构示意图。
图5为图2中前弹簧片的结构示意图。
图6为图2中透镜载体组件第一种视角的结构示意图。
图7为图2中透镜载体组件第二种视角的结构示意图。
图8为图2中后弹簧片组件的结构示意图。
图9为图2中端子座架的结构示意图。
图标：100-双透镜驱动装置；1-磁轭环；11-顶壁；111-第一通孔；112-第一凸起；12-侧壁；13-磁轭板；2-前弹簧片；21-外圈；211-第一连接板；212-第一连接丝；22-内圈；221-第二连接板；222-第二连接丝；23-第一弹簧丝；3-透镜载体组件；31-载体主体；311-前端面；312-第一凹陷区；313-后端面；314-第二凹陷区；315-定位凸起；316-外周面；317-环形槽；318-凹槽；319-缺口；320-容置 腔；33-线圈；4-磁石；5-后弹簧片组件；51-后弹簧片；511-第三连接板；512-第四连接板；513-第二弹簧丝；514-第三弹簧丝；515-内部连接板；5151-第一端；5152-第二端；6-端子座架；61-底壁；611-第二凸起；612-第二通孔；62-焊盘；63-接电端子；64-卡勾。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本发明的描述中，需要理解的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，或者是本领域技术人员惯常理解的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是 可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
请参阅图1和图2，本实施例提供了一种双透镜驱动装置100，双透镜驱动装置100应用并不限于具有自动对焦功能的高像素微型数字照相机，也可以运用于其他需要拍摄功能的设备，例如摄像机。
双透镜驱动装置100包括磁轭壳体以及设置在磁轭壳体内部的透镜载体组件3、弹性组件和磁石4。其中，磁轭壳体包括一端开口的磁轭环1和盖装于磁轭环1的开口的端子座架6，磁轭环1与端子座架6可拆卸连接、并在其内部形成容置空间。弹性组件包括前弹簧片2和后弹簧片组件5。
两组透镜载体组件3沿磁轭环1的侧壁12的长边并排排布，两组透镜载体组件3之间的间隙可以尽可能小，甚至二者接触连接，从而尽量保证两组透镜载体组件3位移的一致性。
两组透镜载体组件3通过弹性组件与磁轭壳体连接。具体的，透镜载体组件3包括前端面311和后端面313，前端面311通过前弹簧片2与磁轭环1的顶壁11连接，后端面313通过后弹簧片组件5与端子座架6连接。两组透镜载体组件3在前弹簧片2和后弹簧片组件5的弹性支撑下，能够沿前后方向做直线运动，起到对焦的作用。
其中，后弹簧片组件5的数量为两个，两个后弹簧片组件5间隔绝缘设置。每个后弹簧片组件5分别连接在端子座架6和一个透镜载体组件3的后端面313上，后弹簧片组件5与透镜载体组件3中的线圈33电连接。这样，通过一个后弹簧片组件5即可对一个透镜载体组件3中的线圈33供电。
磁石4的数量为两个，每个磁石4同时面对两组透镜载体组件3，并与透镜载体组件3间隔设置。两个磁石4相互平行间隔地设置于两组透镜载体组件3外侧，磁石4与磁轭环1的侧壁12的长边间隔平行设置。磁石4为长条形，磁石4的长度大于透镜载体组件3的长度。优选地，磁石4的长度大于或等于两个透镜载体组 件3并排后的长度之和。也就是说，两个透镜载体组件3一并位于两个磁石4形成的磁场中，或者说，两个透镜载体组件3共用两个磁石4。相比为每个透镜载体组件3单独设立两个磁石4，两个透镜载体组件3共用两个磁石4能够避免磁场之间的意外干扰以及减弱其他元件对磁场的影响。
请参阅图3和图4，磁轭环1包括顶壁11、侧壁12和磁轭板13，顶壁11、侧壁12和磁轭板13一体成型。侧壁12为矩形环状，侧壁12的一端连接在顶壁11的边缘，侧壁12的另一端用于与端子座架6可拆卸连接。
顶壁11上开设有两个第一通孔111，每个第一通孔111的相对两边各设置一个磁轭板13，磁轭板13向端子座架6一侧延伸，磁轭板13与侧壁12的长边间隔平行设置。磁轭板13为矩形板状，磁轭板13的长边连接在顶壁11上，磁轭板13的短边的长度小于侧壁12的高度。两个磁轭板13与侧壁12之间设置一个磁石4，优选地，磁石4贴装在侧壁12上。两个磁石4与相对的两个磁轭板13构成一对磁场空间，总共形成两对磁场空间。一对磁场空间用于控制一个透镜载体组件3的位移。两对磁场空间的磁场强度大小一致，能够使两组透镜载体组件3的位移特性高度一致，有利于双摄像头模组的调制优化，提高拍摄性能。
顶壁11的内表面上设置有多个用于连接前弹簧片2的第一凸起112，多个第一凸起112分别位于两个第一通孔111的外围。具体的，顶壁11的四个角位置各设置有一个第一凸起112，顶壁11的长边的中部各设置有一个第一凸起112，总共形成六个第一凸起112、且对称设置在顶壁11的两条长边上。透镜载体组件3通过前弹簧片2连接在第一凸起112上，能够使透镜载体组件3与顶壁11之间的弹性连接更加稳定，同时，为透镜载体组件3提供较大的运动空间。
请参阅图5，前弹簧片2包括内圈22、外圈21和第一弹簧丝23，外圈21为矩形的框形结构，外圈21用于连接在磁轭环1的顶壁11上，内圈22的数量为两个，两个内圈22设置在外圈21的内部，两个内圈22各连接在一个透镜载体组件3的前端面311上，每个内圈22各通过多条第一弹簧丝23与外圈21连接，通过第一弹簧丝23的弹性形变，使内圈22可以相对外圈21运动。
内圈22为封闭的环形结构，环形结构具有较大的刚度。内圈22的内表面围成 圆形，第一弹簧丝23的一端连接在内圈22的外表面，第一弹簧丝23的另一端连接在外圈21的内表面。其中，沿磁轭环1长边延伸的第一弹簧丝23与内圈22之间设置有间隙，磁轭板13可通过间隙插入到透镜载体组件3内。
外圈21包括两个第一连接板211和两根第一连接丝212，两个第一连接板211和两根第一连接丝212首尾连接，从而形成封闭的环形结构。其中，两个第一连接板211相对设置，两根第一连接丝212相对设置。第一连接板211用于连接在位于顶壁11长边上的第一凸起112，第一连接板211的宽度大于第一连接丝212的宽度，从而提高第一连接板211的刚度以及第一连接板211与顶壁11之间的连接强度。第一连接丝212所需长度较短，其宽度较小能够节省材料，节省成本。
两个第一连接板211的中部之间还连接有一根第一连接丝212，这样，可进一步提高前弹簧片2的结构强度。位于中部的第一连接丝212将外圈21的内部划分为两个矩形空间，每个矩形空间内设置一个内圈22。
内圈22包括两个第二连接板221和两根第二连接丝222，两个第二连接板221和两根第二连接丝222首尾连接，形成封闭的环形结构。其中，两个第二连接板221相对设置，两根第二连接丝222相对设置。
请参阅图6和图7，透镜载体组件3包括载体主体31和线圈33，载体主体31的外形呈立方体，载体主体31的四个角位置均开设有倒角。载体主体31包括外周面316以及相对的前端面311和后端面313。载体主体31上开设有容置腔320，容置腔320贯穿前端面311和后端面313，容置腔320用于装载透镜。载体主体31的外周面316开设有环形槽317，线圈33缠绕在环形槽317内。前端面311上相对的两边均开设有凹槽318，凹槽318用于容纳磁轭板13。一个第一通孔111两边的两个磁轭板13对应插入一个镜载体组件上的两个凹槽318内。
凹槽318的容置空间为长方体形状。凹槽318与环形槽317相通，凹槽318相对环形槽317靠近载体主体31组件的中心，线圈33形成凹槽318的一侧壁。这样，线圈33上靠近凹槽318的一对导线束则位于两个磁轭板13与两个磁石4构成的磁场内，导线束与磁轭板13和磁石4无接触。
环形槽317的侧壁上开设有两个缺口319，缺口319从环形槽317贯穿至后端面313，两个缺口319位于后端面313的相对两边，两个缺口319用于将线圈33的两个接线端从环形槽317引出，以便于线圈33与后弹簧片组件5电连接。
前端面311的四周边缘区域为第一凹陷区312，第一凹陷区312用于连接前弹簧片2。前弹簧片2的内圈22连接在第一凹陷区312内，能够防止内圈22在前端面311上错位，并对载体主体31的支撑力均衡。后端面313的四周边缘区域为第二凹陷区314，第二凹陷区314用于连接后弹簧片组件5。第二凹陷区314内设置有定位凸起315，定位凸起315用于固定后弹簧片组件5。后弹簧片组件5连接在第二凹陷区314内，能够防止后弹簧片组件5在后端面313上错位，并对载体主体31的支撑力均衡。
请参阅图8，每个后弹簧片组件5包括两个后弹簧片51，两个弹簧片相对间隔绝缘的设置，后弹簧片51包括第三连接板511、第四连接板512、第二弹簧丝513、第三弹簧丝514和内部连接板515，第三连接板511与第四连接板512平行相对设置，第三连接板511与第四连接板512连接在端子座架6上，内部连接板515位于第三连接板511与第四连接板512之间、且靠近第三连接板511，内部连接板515连接在透镜载体组件3的后端面313上。
内部连接板515包括第一端5151和第二端5152，第一端5151相对第二端5152远离第三连接板511，第二弹簧丝513连接在第一端5151与第三连接板511之间，第三弹簧丝514连接在第二端5152与第四连接板512之间。
两个后弹簧片51围成框形(大体四边形)，两个第三连接板511位于框形的一条对角线的两端，两个第四连接板512位于框形的另一条对角线的两端，两条第三弹簧丝514位于框形的相对两边。框形与载体主体31的形状对应，位于框形内部的两个内部连接板515连接在载体主体31上，位于框形外围的两个第三连接板511和两个第四连接板512连接在端子座架6上，使两个后弹簧片51对载体主体31的支撑力均衡。
每个后弹簧片组件5中的两个内部连接板515分别与线圈33的两个接线端电连接，每个后弹簧片组件5中的两个第三连接板511和两个第四连接板512与接电 端子63电连接，每个后弹簧片组件5与磁轭环1相互绝缘设置。这样，使线圈33通过后弹簧片组件5即可与外部电源连接，结构简单、连接可靠。
请参阅图9，端子座架6包括底壁61、焊盘62、接电端子63和卡勾64，底壁61采用绝缘材料制成，能够有效避免各个接电端子63之间发生短路。底壁61的轮廓与侧壁12的形状相配合，底壁61的内表面上的边缘位置设置有多个用于连接后弹簧片组件5的第二凸起611，第二凸起611为长条形。
底壁61的中部位置开设有两个第二通孔612，两个第二通孔612与两个第一通孔111一一对应，每个第二通孔612的外围设置有两个焊盘62，焊盘62均设置在第二凸起611上，每个焊盘62上连接有一个接电端子63。接电端子63贯穿底壁61，并从底壁61的外表面伸出，便于与外部电源连接。
优选地，四个接电端子63设置在底壁61的同一长边上。每个后弹簧片组件5中的两个相互绝缘的后弹簧片51各连接在一个接电端子63上，从而实现每个线圈33的两个接线端分别与一个接电端子63电连接。
端子座架6还包括多个卡勾64，优选为六个，底壁61的一条长边上设置三个。卡勾64的一端连接在底壁61的外表面，请参阅图1，卡勾64的另一端用于卡接在侧壁12上，从而保证磁轭环1与端子座架6围成体积足够的容置空间。
相对应的第一通孔111、第二通孔612以及载体主体31上的容置腔320位于同一光轴线上。另一组第一通孔111、第二通孔612以及容置腔320位于另一光轴线上。两根光轴线相互平行。从而，保证两个载体主体31内的透镜，光学性能一致。
本实施例提供的双透镜驱动装置100的工作原理：
首先，两个磁石4产生了磁场，两组透镜载体组件3中的线圈33分别通过两个接电端子63接入外部电源，线圈33通过电流时线圈33感应到电磁力而运动。然后，线圈33带动载体主体31运动，载体主体31在前弹簧片2和后弹簧片组件5的弹性力作用下，载体主体31发生前后的直线位移，载体主体31内装载有透镜， 透镜随载体主体31前后移动。此外，通过控制各个线圈33通过电流的大小即可精确控制对应透镜载体组件3的位移大小，实现精准对焦的目的。
本实施例提供的双透镜驱动装置100的有益效果：
首先，本实施例提供的双透镜驱动装置100不是简单地将两个单镜头驱动装置合并组合在一起，而是利用磁轭环1、前弹簧片2以及两个磁石4共同形成磁场，也利用磁轭环1和端子座架6形成一体的框架结构，极大地保证了两组透镜载体组件3位移特性的一致性，有利于双摄像头模组的配对调制。
其次，两个磁石4相互平行间隔地设置于两组透镜载体组件3外侧，不仅不存在现有的双摄像头模组中两个单镜头驱动装置之间的电磁场干扰缺陷，而且两组透镜载体组件3并排排布，能够将双摄像头模组中两个镜头之间的空间距离缩小，从而更容易使双摄像头的摄像性能更加优越。
最后，本实施例提供的双透镜驱动装置100体积较小，可减少所需的空间。更重要的是，磁轭环1、前弹簧片2、后弹簧片组件5、磁石4以及端子座架6通过同时制作的零部件加工，并同时进行装配，可最大限度地使零部件的尺寸精度一致，从而，保证两个透镜的位移特性保持最大限度的一致性。同时，也能够最大限度地降低零部件成本和组装成本，以及提高生产效率。
以上仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
本发明的工业实用性：
本发明能够消除多个摄像头的透镜载体组件间的电磁场干扰，缩短多个摄像头之间的空间距离，有利于双摄像头模组的配对调制，提高了摄像头拍摄性能。

Claims (22)

  1. 一种双透镜驱动装置(100)，其特征在于，所述双透镜驱动装置(100)包括磁轭壳体以及设置在所述磁轭壳体内部的透镜载体组件(3)、弹性组件和多个磁石(4)，两组所述透镜载体组件(3)并排排布，两组所述透镜载体组件(3)通过所述弹性组件与所述磁轭壳体连接，每个所述磁石(4)均面对两组所述透镜载体组件(3)，并与所述透镜载体组件(3)间隔设置。
  2. 根据权利要求1所述的双透镜驱动装置(100)，其特征在于，所述磁石(4)的数量为两个，两个所述磁石(4)相互平行间隔地设置于两组所述透镜载体组件(3)外侧。
  3. 根据权利要求1或2所述的双透镜驱动装置(100)，其特征在于，所述磁石(4)为长条形，所述磁石(4)的长度大于所述透镜载体组件(3)的长度。
  4. 根据权利要求1至3中任一项所述的双透镜驱动装置(100)，其特征在于，所述磁石(4)的长度或等于两个所述透镜载体组件(3)并排后的长度之和。
  5. 根据权利要求1至4中任一项所述的双透镜驱动装置(100)，其特征在于，所述磁轭壳体包括一端开口的磁轭环(1)和盖装于所述磁轭环(1)的开口的端子座架(6)，所述磁轭环(1)上开设有两个第一通孔(111)，每个所述第一通孔(111)的相对的两边各设置一个磁轭板(13)，所述磁轭板(13)向所述端子座架(6)一侧延伸，所述磁轭板(13)与所述磁石(4)间隔平行设置。
  6. 根据权利要求5所述的双透镜驱动装置(100)，其特征在于，所述磁轭环(1)包括顶壁(11)和侧壁(12)，所述侧壁(12)为矩形环状，所述侧壁(12)的一端连接在所述顶壁(11)的边缘，所述侧壁(12)的另一端与所述端子座架(6)可拆卸地连接，所述磁轭板(13)为矩形板状，所述磁轭板(13)的长边连接在所述顶壁(11)上，所述磁轭板(13)的短边的长度小于所述侧壁(12)的高度。
  7. 根据权利要求6所述的双透镜驱动装置(100)，其特征在于，所述顶壁(11)的内表面上设置有多个第一凸起(112)，每个所述第一凸起(112)被配置为连接 所述弹性组件，多个所述第一凸起(112)分别位于两个所述第一通孔(111)的外围。
  8. 根据权利要求6所述的双透镜驱动装置(100)，其特征在于，所述端子座架(6)包括底壁(61)、焊盘(62)和接电端子(63)，所述底壁(61)采用绝缘材料制成，所述底壁(61)开设有两个第二通孔(612)，两个所述第二通孔(612)与两个所述第一通孔(111)一一对应，每个所述第二通孔(612)的外围设置有两个所述焊盘(62)，每个所述焊盘(62)上连接有一个所述接电端子(63)。
  9. 根据权利要求8所述的双透镜驱动装置(100)，其特征在于，所述端子座架(6)还包括多个卡勾(64)，每个所述卡勾(64)的一端连接在所述底壁(61)的外表面而另一端被配置为卡接在所述侧壁(12)上。
  10. 根据权利要求8所述的双透镜驱动装置(100)，其特征在于，所述底壁(61)的内表面上的边缘位置设置有多个第二凸起(611)，每个所述第二凸起(611)被配置为连接所述弹性组件。
  11. 根据权利要求8所述的双透镜驱动装置(100)，其特征在于，所述弹性组件包括前弹簧片(2)和后弹簧片组件(5)，所述透镜载体组件(3)包括前端面(311)和后端面(313)，所述前端面(311)通过所述前弹簧片(2)与所述磁轭壳体连接，所述后端面(313)通过所述后弹簧片组件(5)与所述磁轭壳体连接。
  12. 根据权利要求11所述的双透镜驱动装置(100)，其特征在于，所述前弹簧片(2)包括内圈(22)、外圈(21)和第一弹簧丝(23)，所述外圈(21)为封闭的环形结构，所述外圈(21)被配置为连接在所述磁轭壳体上，所述内圈(22)的数量为两个，两个所述内圈(22)设置在所述外圈(21)的内部，两个所述内圈(22)分别连接在两个所述透镜载体组件(3)的所述前端面(311)上，每个所述内圈(22)通过多条所述第一弹簧丝(23)与所述外圈(21)连接。
  13. 根据权利要求12所述的双透镜驱动装置(100)，其特征在于，所述内圈(22)为封闭的环形结构，每个所述第一弹簧丝(23)的一端连接在所述内圈(22)的外表面而另一端连接在所述外圈(21)的内表面。
  14. 根据权利要求12所述的双透镜驱动装置(100)，其特征在于，所述外圈(21)为矩形的框形结构，所述外圈(21)包括两个第一连接板(211)和两根第一连接丝(212)，两个所述第一连接板(211)和两根所述第一连接丝(212)交替地首尾连接，其中，两个所述第一连接板(211)相对设置，两根所述第一连接丝(212)相对设置。
  15. 根据权利要求14所述的双透镜驱动装置(100)，其特征在于，两个所述第一连接板(211)的中部之间还连接有一根所述第一连接丝(212)，位于中部的所述第一连接丝(212)将所述外圈(21)的内部划分为两个矩形空间，每个所述矩形空间内设置一个所述内圈(22)。
  16. 根据权利要求12所述的双透镜驱动装置(100)，其特征在于，所述内圈(22)包括两个第二连接板(221)和两根第二连接丝(222)，两个所述第二连接板(221)和两根所述第二连接丝(222)交替地首尾连接，其中，两个所述第二连接板(221)相对设置，两根所述第二连接丝(222)相对设置。
  17. 根据权利要求11所述的双透镜驱动装置(100)，其特征在于，所述后弹簧片组件(5)的数量为两个，两个所述后弹簧片组件(5)间隔绝缘设置，两个所述后弹簧片组件(5)分别连接在所述端子座架(6)并且分别连接在两组所述透镜载体组件(3)的所述后端面(313)上，所述后弹簧片组件(5)与所述透镜载体组件(3)中的线圈(33)电连接。
  18. 根据权利要求17所述的双透镜驱动装置(100)，其特征在于，每个所述后弹簧片组件(5)包括两个后弹簧片(51)，两个所述弹簧片相对间隔设置，所述后弹簧片(51)包括第三连接板(511)、第四连接板(512)、第二弹簧丝(513)、第三弹簧丝(514)和内部连接板(515)，所述第三连接板(511)与所述第四连接板(512)平行相对设置，所述第三连接板(511)与所述第四连接板(512)连接在所述端子座架(6)上，所述内部连接板(515)位于所述第三连接板(511)与所述第四连接板(512)之间、且靠近所述第三连接板(511)，所述内部连接板(515)连接在所述透镜载体组件(3)的所述后端面(313)上，所述内部连接板(515)包括第一端(5151)和第二端(5152)，所述第一端(5151)至所述第三连接板(511) 的距离大于所述第二端(5152)至所述第三连接板(511)的距离，所述第二弹簧丝(513)连接在所述第一端(5151)与所述第三连接板(511)之间，所述第三弹簧丝(514)连接在所述第二端(5152)与所述第四连接板(512)之间。
  19. 根据权利要求18所述的双透镜驱动装置(100)，其特征在于，两个所述后弹簧片(51)围成大体四边形，两个所述第三连接板(511)位于所述大体四边形的一条对角线的两端，两个所述第四连接板(512)位于所述大体四边形的另一条对角线的两端，两条所述第三弹簧丝(514)位于所述框形的相对两边。
  20. 根据权利要求18所述的双透镜驱动装置(100)，其特征在于，每个所述透镜载体组件(3)还包括线圈(33)，每个所述后弹簧片组件(5)中的两个所述内部连接板(515)分别与所述线圈(33)的两端电连接，每个所述后弹簧片组件(5)中的两个所述第三连接板(511)或两个所述第四连接板(512)与所述接电端子(63)电连接。
  21. 根据权利要求1所述的双透镜驱动装置(100)，其特征在于，每个所述透镜载体组件(3)包括载体主体(31)和线圈(33)，所述载体主体(31)包括外周面(316)以及相对的前端面(311)和后端面(313)，所述载体主体(31)上开设有容置腔(320)，所述容置腔(320)贯穿所述前端面(311)和所述后端面(313)，所述容置腔(320)被配置为装载透镜，所述载体主体(31)的外周面(316)开设有环形槽(317)，所述线圈(33)缠绕在所述环形槽(317)内，所述前端面(311)上相对的两边均开设有凹槽(318)，所述凹槽(318)被配置为容纳磁轭板(13)。
  22. 根据权利要求21所述的双透镜驱动装置(100)，其特征在于，所述凹槽(318)与所述环形槽(317)相通，所述凹槽(318)至所述载体主体(31)组件的中心的距离小于所述环形槽(317)至所述载体主体(31)组件的中心的距离，所述线圈(33)形成所述凹槽(318)的一侧壁。
PCT/CN2017/109985 2017-10-11 2017-11-08 一种双透镜驱动装置 WO2019071687A1 (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108828747B (zh) * 2018-08-22 2024-03-26 上海信迈电子科技有限公司 透镜驱动马达、透镜驱动马达组件、相机及移动终端装置
CN112526801B (zh) * 2019-09-03 2022-01-25 宏达国际电子股份有限公司 双镜头成像模块及其提取方法
CN111614874B (zh) * 2020-05-13 2022-02-15 Oppo广东移动通信有限公司 一种电子设备
CN113534399A (zh) * 2021-06-28 2021-10-22 新思考电机有限公司 透镜驱动结构、潜望透镜驱动装置、照相装置、电子产品
CN113433650A (zh) * 2021-06-28 2021-09-24 新思考电机有限公司 透镜驱动结构、潜望透镜驱动装置、照相装置、电子产品

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060028929A1 (en) * 2004-08-05 2006-02-09 Mitsumi Electric Co., Ltd. Autofocus actuator
US20060034599A1 (en) * 2004-08-13 2006-02-16 Mitsumi Electric Co., Ltd. Autofocus actuator
CN106773460A (zh) * 2017-01-10 2017-05-31 安徽江馨微电子科技有限公司 双摄像头自动对焦装置
CN206235768U (zh) * 2016-08-18 2017-06-09 新科实业有限公司 自动对焦双镜头相机模组、光学防抖双镜头相机模组
CN206497280U (zh) * 2016-12-27 2017-09-15 苏州聚力电机有限公司 多镜头同时对焦的摄影模组
CN207232595U (zh) * 2017-10-11 2018-04-13 绵阳安和光电科技有限公司 一种双透镜驱动装置
CN207229646U (zh) * 2017-10-11 2018-04-13 绵阳安和光电科技有限公司 一种弹簧片和双透镜驱动装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762992B1 (ko) * 2004-09-24 2007-10-02 엘지전자 주식회사 렌즈구동장치
WO2015025734A1 (ja) * 2013-08-22 2015-02-26 コニカミノルタ株式会社 レンズユニット、撮像装置及びマルチアレイレンズ
CN205318005U (zh) * 2016-01-21 2016-06-15 沈子顺 一种手机的双透镜镜头
CN106842487A (zh) * 2017-02-09 2017-06-13 魏立鼎 音圈马达、透镜驱动装置及具有摄像头的电子设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060028929A1 (en) * 2004-08-05 2006-02-09 Mitsumi Electric Co., Ltd. Autofocus actuator
US20060034599A1 (en) * 2004-08-13 2006-02-16 Mitsumi Electric Co., Ltd. Autofocus actuator
CN206235768U (zh) * 2016-08-18 2017-06-09 新科实业有限公司 自动对焦双镜头相机模组、光学防抖双镜头相机模组
CN206497280U (zh) * 2016-12-27 2017-09-15 苏州聚力电机有限公司 多镜头同时对焦的摄影模组
CN106773460A (zh) * 2017-01-10 2017-05-31 安徽江馨微电子科技有限公司 双摄像头自动对焦装置
CN207232595U (zh) * 2017-10-11 2018-04-13 绵阳安和光电科技有限公司 一种双透镜驱动装置
CN207229646U (zh) * 2017-10-11 2018-04-13 绵阳安和光电科技有限公司 一种弹簧片和双透镜驱动装置

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