WO2021218840A1 - 驱动装置和电子设备 - Google Patents

驱动装置和电子设备 Download PDF

Info

Publication number
WO2021218840A1
WO2021218840A1 PCT/CN2021/089548 CN2021089548W WO2021218840A1 WO 2021218840 A1 WO2021218840 A1 WO 2021218840A1 CN 2021089548 W CN2021089548 W CN 2021089548W WO 2021218840 A1 WO2021218840 A1 WO 2021218840A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical connection
carrier
sheet
voltage
electro
Prior art date
Application number
PCT/CN2021/089548
Other languages
English (en)
French (fr)
Inventor
许能华
李文珍
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021218840A1 publication Critical patent/WO2021218840A1/zh

Links

Images

Classifications

    • 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
    • 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
    • G03B13/36—Autofocus systems
    • 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
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

Definitions

  • the present invention relates to the field of electronic devices, in particular to a driving device and electronic equipment.
  • the drive structure in the camera module of the electronic device can drive the lens to move and realize the function of auto-focusing, thereby capturing clearer images.
  • the traditional driving device uses a magnetoelectric structure to drive the driving device, but the magnetoelectric structure will interfere with the electronic devices around the driving device and affect the performance of the electronic device.
  • the embodiments of the present invention provide a driving device and an electronic device to solve the problem that the magnetoelectric structure of the current driving device interferes with electronic devices around the driving device and affects the performance of the electronic device.
  • the first aspect of the embodiments of the present invention provides a driving device, including a carrier, a housing, an elastic member, an electro-driven sheet, and a base;
  • the housing and the base cooperate to form an accommodating cavity, and the elastic member, the carrier and the electro-driving sheet are sequentially arranged in the accommodating cavity;
  • the carrier is movably connected to the housing through the elastic member, and the carrier is used to carry functional devices;
  • the first end of the electro-driven sheet is connected with the base, and the second end of the electro-driven sheet is connected with the carrier;
  • the electro-driving sheet when a voltage is applied to the electro-driving sheet, the electro-driving sheet deforms and drives the carrier to move.
  • the fixing member is located in the accommodating cavity, and the electro-driving sheet is arranged between the fixing member and the base, and the fixing member and the electro-driving
  • the first surface of the sheet is electrically connected
  • the second surface of the electro-driven sheet is electrically connected to the base, and the first surface and the second surface are oppositely distributed.
  • the base includes a base body and a first electrical connection portion, the first electrical connection portion is disposed on the base body, and the first electrical connection portion is electrically connected to the second electrical connection portion of the fixing member .
  • the base body is further provided with a first groove
  • the first electrical connection portion includes a first electrical connection surface and a first pin, and the first electrical connection surface is electrically connected to the first pin;
  • first electrical connection surface is located in the first groove
  • second electrical connection portion of the fixing member is at least partially located in the first groove, and is connected to the first electrical connection surface through the first electrical connection surface.
  • the first pin is electrically connected.
  • the base further includes a third electrical connection part, the base body is provided with a second groove, and the second groove has a bearing area;
  • the third electrical connection portion includes a second electrical connection surface and a second pin provided in the carrying area, and the second electrical connection surface is electrically connected to the second pin;
  • the second pin is located outside the second groove, and the second electrical connection surface is electrically connected to the second surface of the electro-driving sheet.
  • the base body is further provided with a fourth electrical connection portion, the fourth electrical connection portion includes a third electrical connection surface, and the third electrical connection surface is spaced apart from the first electrical connection portion.
  • the base is a square structural member, the number of the first electrical connection part is one, the number of the third electrical connection part is three, the first electrical connection part and the three third The electrical connection parts are respectively located in the four corner areas of the base.
  • the bottom of the second groove is provided with a first through hole
  • the base body is also provided with at least two first positioning posts, and at least two of the first positioning posts are located in the second groove
  • the first positioning post is distributed adjacent to the first electrical connection part or the third electrical connection part
  • the fixing member is provided with a first positioning post that is adapted to the first positioning post. hole
  • the fixing member is connected with the first positioning post through the first positioning hole.
  • the bottom of the second groove is provided with at least two first bosses, the at least two first bosses are distributed around the first through hole, and the at least two first bosses The center is symmetrically distributed about the center of the first through hole.
  • the at least two first bosses include four first bosses, the four first bosses are distributed around the first through hole, and the four first bosses are related to the first through hole.
  • the center of a through hole is centrally symmetrically distributed;
  • the first boss is a rectangular structural member, and a first edge of the first boss close to the first through hole is provided with an arc-shaped notch adapted to the first through hole.
  • the carrier includes a third surface facing the electro-driven sheet, the third surface is provided with a second positioning pillar, and the electro-driven sheet is provided with a second positioning pillar.
  • the electro-driven sheet is connected to the second positioning post through the first positioning hole.
  • a second boss is provided on the third surface, and the base further includes a first boss arranged opposite to the second boss;
  • the sum of the first height of the first boss and the second height of the second boss is greater than or equal to the thickness of the electro-driven sheet.
  • the carrier further includes a fourth surface facing the elastic member, and the fourth surface is provided with a third boss.
  • the elastic member includes a bracket and an elastic part
  • the bracket is fixedly arranged on a side of the housing facing the carrier, and the elastic part is connected with the carrier.
  • the elastic portion is provided with a second through hole, the edge of the second through hole is provided with a plurality of first notches, and the plurality of first notches are symmetrically distributed with respect to the center of the second through hole;
  • the carrier includes a plurality of connecting protrusions, the number of the connecting protrusions is the same as the number of the first notches, and each of the connecting protrusions is connected to the elastic part through a first notch respectively.
  • the electro-driving sheet is an ion-conducting driving sheet
  • the ion-conducting driving sheet includes an ion-exchange resin layer, and a first electrode layer and a second electrode respectively disposed on two opposite surfaces of the ion-exchange resin layer Layer, the ion exchange resin layer has a polymer electrolyte in it.
  • the ion conduction driving sheet drives the carrier to move in the first direction
  • the ion conduction driving sheet drives the carrier to move in the second direction;
  • first voltage and the second voltage have opposite polarities, and the first direction and the second direction are opposite to each other.
  • the ion conduction driving sheet drives the carrier to move a first distance in a first direction
  • the ion conduction driving sheet drives the carrier to move a second distance in the first direction;
  • the first voltage and the third voltage have the same polarity, and the third voltage is greater than the first voltage, and the first distance is different from the second distance.
  • the ion conduction driving sheet drives the carrier to move in the first direction at a first rate
  • the ion conduction driving sheet drives the carrier to move in the first direction at a second rate
  • the first voltage and the third voltage have the same polarity, and the third voltage is greater than the first voltage, and the first rate is different from the second rate.
  • a second aspect of the embodiments of the present invention provides an electronic device, including the driving device described in any one of the above.
  • An embodiment of the present invention provides a driving device, which includes a carrier, a housing, an elastic member, an electro-driving sheet, and a base; the housing and the base cooperate to form an accommodating cavity, the elastic member, the carrier And the electro-driving sheet are sequentially arranged in the accommodating cavity; the carrier is movably connected to the housing through the elastic member, and the carrier is used to carry functional devices; the electro-driving sheet The first end is connected with the base, and the second end of the electro-drive sheet is connected with the carrier; wherein, when a voltage is applied to the electro-drive sheet, the electro-drive sheet deforms and drives The carrier moves.
  • the magnetoelectric structure is eliminated, and no magnetic field interference is generated to the circuits and devices around the driving device, and the working environment of the circuits and devices around the driving device is purified.
  • Figure 1 is an exploded view of a driving device provided by an embodiment of the present invention
  • FIGS. 2 to 15 are partial structural diagrams of a driving device provided by an embodiment of the present invention.
  • 16 is a schematic cross-sectional view of a driving device provided by an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of an electro-driving sheet made by IPMC provided by an embodiment of the present invention when no voltage is applied; FIG.
  • FIGS. 18 and 19 are schematic diagrams showing the deformation of the electro-driving sheet provided by the embodiment of the present invention when a voltage is applied.
  • this embodiment provides a driving device, which includes a carrier 1, a housing 2, an elastic member 3, an electro-driven sheet 4, and a base 5; the housing 2 and the base 5 cooperate to form an accommodation In the cavity, the elastic member 3, the carrier 1 and the electro-driven sheet 4 are sequentially arranged in the accommodating cavity; the carrier 1 is movably connected to the housing 2 through the elastic member 3, And the carrier 1 is used to carry functional devices; the first end of the electro-driven sheet 4 is connected with the base 5, and the second end of the electro-driven sheet 4 is connected with the carrier 1; wherein When a voltage is applied to the electro-driven sheet 4, the electro-driven sheet 4 deforms and drives the carrier 1 to move, or the electro-driven sheet 4 deforms so that the elastic member 3 drives the carrier 1 The carrier 1 moves.
  • the carrier 1 is movably connected to the housing 2 through the elastic element 3, that is, the carrier 1 can move relative to the housing 2.
  • the elastic element 3 is provided on the housing 2, and the carrier 1 is connected to the elastic element 3.
  • the carrier 1 Suspended in the accommodating cavity, the carrier 1 can move in the accommodating cavity.
  • the carrier 1 is used to carry a functional device, and a detachable connection may be adopted between the carrier 1 and the functional device, for example, a threaded connection or a snap connection, and the functional device may be an optical device.
  • the optical device can be a lens or lens assembly applied to a camera, an infrared sensor, a flashlight, etc., and a driving device can be used to adjust the optical length of the optical device output or receive the optical signal, the divergence angle and focus of the optical device, etc.
  • Optical parameters; the functional device can also be an acoustic module, the position of the acoustic module can be adjusted by the driving device, thereby changing the volume of the front cavity or the back cavity of the acoustic module to change the audio characteristics of the acoustic module, etc.
  • the functional device is also It can be some other movable devices, such as a stylus, an interface, or a card holder.
  • the driving device is a driving structure for ejecting the movable device.
  • the first end of the electro-driven sheet 4 is connected with the base 5 and fixed on the base 5, and the second end of the electro-driven sheet 4 is connected with the carrier 1.
  • the electro-driven sheet 4 When the electro-driven sheet 4 is applied When a voltage is applied, the electro-driven sheet 4 deforms and drives the carrier 1 to move. For example, according to different deformation directions of the electro-driven sheet 4, the carrier 1 can be driven to move in a direction toward or away from the base.
  • the electro-driven sheet 4 deforms so that the elastic member 3 drives the carrier 1 to move, that is, when the electro-driven sheet 4 deforms and retracts in the reverse direction, the carrier 1 moves in the reverse direction under the action of the elastic member 3 Condition.
  • the elastic member 3 and the electro-driven sheet 4 can jointly provide a force to the carrier 1 to maintain the suspended state.
  • the elastic member 3 may not be in the initial state, that is, the elastic member 3 It is in a compressed or stretched state and has a certain elastic potential energy.
  • the electro-driven sheet 4 When the electro-driven sheet 4 is energized and deformed and bends along the side away from the base 5, the electro-driven sheet 4 drives the carrier 1 to move away from the base 5, and the elastic member 3 is compressed at this time.
  • the electro-driven sheet 4 drives the carrier 1 to move toward the base 5, while the elastic member 3 is stretched.
  • the premise of this situation is: when the carrier 1 is in a suspended state, the elastic member 3 is in the original length or stretched state;
  • the elastic member 3 drives the carrier 1 to move in a direction close to the base 5. This situation is aimed at the situation where the elastic member 3 is in a compressed state when the carrier 1 is in a suspended state.
  • the driving device in this embodiment includes a carrier 1, a housing 2, an elastic member 3, an electro-driving sheet 4, and a base 5.
  • the housing 2 and the base 5 cooperate to form an accommodating cavity, and the elastic
  • the member 3, the carrier 1 and the electro-driven sheet 4 are sequentially arranged in the accommodating cavity;
  • the carrier 1 is movably connected to the housing 2 through the elastic member 3, and the carrier 1 is used for
  • the first end of the electro-driven sheet 4 is connected with the base 5, and the second end of the electro-driven sheet 4 is connected with the carrier 1; wherein, when the electric When a voltage is applied to the driving sheet 4, the electro-driving sheet 4 deforms and drives the carrier 1 to move.
  • the magnetoelectric structure is eliminated, and no magnetic field interference is generated to the circuits and devices around the driving device, and the working environment of the circuits and devices around the driving device is purified.
  • the driving device further includes a fixing member 6, the fixing member 6 is located in the accommodating cavity, and the electro-driving sheet 4 is disposed between the fixing member 6 and the base 5.
  • the fixing member 6 is electrically connected to the first surface of the electro-driven sheet 4, the second surface of the electro-driven sheet 4 is electrically connected to the base, and the first surface is opposite to the second surface distributed.
  • the fixing member 6 is used to fix the electro-driving sheet 4 on the base 5, and the fixing member 6 is electrically connected to the first surface of the electro-driving sheet 4, that is, the fixing member 6 is also used to conduct the electro-driving sheet 4 Current.
  • the fixing member 6 may be a metal member.
  • the first side of the electro-driving sheet 4 is electrically connected to the fixing member 6, and the second side of the electro-driving sheet 4 is electrically connected to the base 5. In this way, voltage can be applied to the fixing member 6 and the base 5 to achieve the
  • the driving sheet 4 applies a voltage, which causes the electro-driving sheet 4 to deform and drives the carrier 1 to move.
  • the fixing member 6 is a frame structure with a through hole in the middle. Out portion, each protruding portion is provided with a first positioning hole 61.
  • the base 5 includes a base body 51 and a first electrical connection portion 52.
  • the first electrical connection portion 52 is disposed on the base body 51, and the first electrical connection portion 52 is connected to the base body 51.
  • the second electrical connection part of the fixing member 6 is electrically connected and used for conducting current to the fixing member 6.
  • the first electrical connection portion 52 may be located at the four corners of the base body 51, and a fixing member 6 may be provided at the four corners of the base body 51; or, the fixing member 6 as shown in FIG. 9, in this case,
  • the fixing member 6 is ring-shaped, and the second electrical connection portions of the fixing member 6 can be simultaneously arranged at the four corners of the base body 51 to be electrically connected to the first electrical connection portion 52.
  • the first electrical connection portion 52 may be formed by injection molding on the base body 51 using insert molding injection molding technology (Insert Molding, I/M technology for short).
  • insert molding injection molding technology Insert Molding, I/M technology for short.
  • FIG. 11 shows the positional relationship diagram between the carrier 1, the electro-driven sheet 4, the base 5 and the fixing member 6, wherein the fixing member 6 adopts the fixing member structure shown in FIG. 9.
  • the base body 51 is further provided with a first groove 511;
  • the first electrical connection portion 52 includes a first electrical connection surface 521 and a first pin 522, the first electrical connection surface 521 and a first The pin 522 is electrically connected; wherein the first electrical connection surface 521 is located in the first groove 511, and the second electrical connection portion of the fixing member 6 is at least partially located in the first groove 511, and The first electrical connection surface 521 is electrically connected to the first pin 522, and the first pin 522 is located on the side of the base body 51 away from the electro-driven sheet 4.
  • the first electrical connection surface 521 is located in the first groove 511, and the second electrical connection portion of the fixing member 6 is at least partially located in the first groove 511, so that the first electrical connection surface 521 is fixed
  • the second electrical connection part of the member 6 is in good contact, and electrical conduction can be achieved.
  • the shape of the notch of the first groove 511 is a triangle, a trapezoid, or a pentagon.
  • the base 5 further includes a third electrical connection portion 53
  • the base body 51 is provided with a second groove 514 (the octagonal groove in the central area of FIG. 2), and the second groove 514 is electro-actuated
  • the second groove 514 has a bearing area 512
  • the third electrical connection portion 53 includes a second electrical connection surface 531 and a second pin 532 disposed on the bearing area 512, so The second electrical connection surface 531 and the second pin 532 are electrically connected; wherein, the second pin 532 is located outside the second groove 514, and the second electrical connection surface 531 is The second side of the driving piece 4 is electrically connected.
  • the first pin 522 When a voltage is applied to both ends of the first pin 522 and the second pin 532, the first pin 522 is connected to the first surface of the electro-driving sheet 4 through the fixing member 6, and the second pin 532 passes through the The two electrical connection surfaces 531 are in conduction with the second surface of the electro-driving sheet 4. In this way, voltage can be applied to the electro-driving sheet 4 by applying a voltage to both ends of the first pin 522 and the second pin 532, so that the electro-driving sheet 4 is deformed and the carrier 1 is driven to move.
  • the third electrical connection portion 53 can be formed by injection molding on the base body 51 using I/M technology.
  • FIG. 10 shows the positional relationship diagram between the carrier 1, the electro-driven sheet 4 and the base 5, wherein the second groove 514 has a plurality of bearing areas 512, and each bearing area 512 is covered with an electro-driven sheet 4.
  • the base 5 is further provided with a fourth electrical connection portion, the fourth electrical connection portion includes a third electrical connection surface 551, and the third electrical connection surface 551 is spaced apart from the first electrical connection portion 52 .
  • an electro-driven sheet 4 is provided at the third electrical connection surface 551, the third electrical connection surface 551 can be electrically connected to the second electrical connection surface 531, and the third electrical connection surface 551 is also connected to the electro-driven sheet 4
  • the second side is electrically connected
  • the first electrical connection portion 52 is electrically connected to the first side of the electro-driving sheet 4. In this way, voltage can be applied to the electro-driving sheet 4 by applying a voltage to both ends of the first pin 522 and the second pin 532, so that the electro-driving sheet 4 is deformed and the carrier 1 is driven to move.
  • the base 5 may be a square structural member, the number of the first electrical connection portion 52 is one, the number of the third electrical connection portion 53 is three, and the number of the first electrical connection portion is three.
  • the third electrical connection portions 53 are respectively located in the four corner areas of the base 5.
  • One electro-driving sheet 4 can be provided for each third electrical connection portion 53 and the second electrical connection surface 531 of the third electrical connection portion 53 is electrically connected to the second surface of the corresponding electro-driving sheet 4.
  • the base 5 may be a circular structure or an octagonal structure, etc. The present invention does not specifically limit the shape of the base 5.
  • the bottom of the second groove 514 is provided with a first through hole 515
  • the base body 51 is also provided with at least two first positioning posts 513, and at least two first positioning posts 513 are provided.
  • a positioning post 513 is located outside the second groove 514, and the first positioning post 513 is distributed adjacent to the first electrical connection portion 52 or the third electrical connection portion 53, the fixing member 6
  • a first positioning hole 61 adapted to the first positioning post 513 is opened; the fixing member 6 is connected to the first positioning post 513 through the first positioning hole 61.
  • the first positioning hole 61 and the first positioning post 513 can be fixed by hot riveting or the like.
  • the fixing member 6 is provided with first positioning holes 61, and the number and positions of the first positioning holes 61 are adapted to the number and positions of the first positioning posts 513.
  • the bottom of the second groove 514 is provided with at least two first bosses, the at least two first bosses are distributed around the first through hole 515, and the first bosses are about The centers of the first through holes 515 are centrally symmetrically distributed.
  • at least two first bosses can prevent the carrier 1 from impacting the second groove 514.
  • the at least two first bosses include four first bosses 54, four of the first bosses 54 are distributed around the first through hole 515, and the four first bosses 54
  • the center of the first through hole 515 is distributed symmetrically; wherein, the first boss 54 is a rectangular structural member, and the first boss 54 is opened close to the first edge of the first through hole 515
  • the carrier 1 includes a third surface 11 facing the electro-driven sheet 4, the third surface 11 is provided with a second positioning pillar 111, and the electro-driven sheet 4 A second positioning hole 41 adapted to the second positioning pillar 111 is opened; the electro-driven sheet 4 is connected to the second positioning pillar 111 through the second positioning hole 41 to realize electro-driving The connection between the sheet 4 and the carrier 1.
  • the second positioning pillar 111 may be a plastic pillar, and the second positioning hole 41 may be a blind hole or a through hole.
  • the second positioning pillar 111 and the second positioning hole 41 are connected by hot riveting or glue dispensing.
  • the third surface 11 is provided with a second boss 112, and the base 5 further includes a first boss 54 disposed opposite to the second boss 112; optionally, The sum of the first height of the first boss and the second height of the second boss is greater than or equal to the thickness of the electro-driven sheet 4, so as to prevent the carrier 1 from moving toward the base 5 1 Excessive squeezing of the electro-driving sheet 4 causes the electro-driving sheet 4 to be damaged.
  • the electro-driven sheet 4 includes a main structure, and a terminal formed by extending the main structure.
  • the width of the terminal is greater than the width of the main structure, and the terminal may be a trapezoidal structure, a triangular structure, or a rectangular structure.
  • the main structure can be a rectangular structure.
  • the second positioning hole 41 is located on the main structure, and specifically may be located at an end of the main structure away from the terminal.
  • the carrier 1 is in contact with a part of the main structure, and the terminal protrudes out of the edge of the carrier 1.
  • the carrier 1 further includes a fourth surface 12 facing the elastic member 3, and the fourth surface 12 is provided with a third boss 121 to prevent the carrier 1 from impacting when moving toward the housing 2. Or squeeze to the shell 2.
  • the carrier 1 is provided with a through hole, and the edge of the through hole is provided with a threaded structure, and the carrier 1 can be connected with the functional device through the threaded structure.
  • the four corners of the carrier 1 are provided with a stepped platform structure.
  • the carrier may be an octagonal structural member.
  • the elastic member 3 includes a bracket 31 and an elastic portion 32; Phase connection.
  • the carrier 1 can be suspended in the accommodating cavity through the elastic member.
  • the elastic portion 32 has an elastic winding portion, for example, the elastic winding portion may be provided at a corner position in the bracket 31. Two ends of the elastic winding part are connected with the bracket 31, and the winding parts of the elastic winding part do not intersect each other, thereby forming a hollow area.
  • the bracket 31 includes four corner positions, and the four corner positions are respectively provided with four elastic winding parts.
  • the elastic portion 32 is provided with a second through hole, and the edge of the second through hole is provided with a plurality of first notches 321, and the plurality of first notches 321 are related to the first
  • the centers of the two through holes are symmetrically distributed;
  • the carrier 1 includes a plurality of connecting protrusions 13, the number of the connecting protrusions 13 is the same as the number of the first notches 321, and each of the connecting protrusions 13 passes through one
  • the first notch 321 is connected to the elastic portion 32.
  • the connection protrusion 13 and the first notch 321 may be specifically detachably connected, specifically, it may be a snap connection.
  • the part of the carrier 1 in contact with the edge of the second through hole can also be fixed with glue to further fix the carrier 1 and the elastic part 32.
  • the housing 2 includes at least two fourth bosses 21, and the fourth bosses 21 are used to carry the bracket 31.
  • the housing 2 includes four fourth bosses 21, which are respectively arranged at the four corners of the housing.
  • the four fourth bosses 21 carry the bracket 31, and the fourth bosses 21 and
  • the brackets 31 can be fixed by glue.
  • FIG. 13 shows the positional relationship diagram between the elastic member 3 and the housing 2.
  • the housing 2 further includes a grounding pin 22, which serves as a grounding terminal of the driving device to reduce static electricity generated during the operation of the driving device.
  • FIG. 14 is a diagram showing the positional relationship among the base 5, the carrier 1 and the elastic member 3.
  • FIG. 15 is a schematic diagram of the structure in which the housing 2 is added to the structure shown in FIG. 14.
  • FIG. 16 is a schematic cross-sectional structure diagram of the driving device provided by this embodiment.
  • the electro-driving sheet 4 is an ion-conducting driving sheet
  • the ion-conducting driving sheet includes an ion exchange resin layer and a first electrode layer and a second electrode layer respectively disposed on two opposite surfaces of the ion exchange resin layer.
  • the electrode layer has a polymer electrolyte in the ion exchange resin layer.
  • the electro-driven sheet 4 may be made of ion-exchange polymer metal composite (IPMC for short).
  • IPMC material is a new type of electrically actuated functional material. It uses an ion exchange resin layer (such as fluorocarbon polymer, etc.) as a matrix, and the surface of the substrate is plated with precious metals (such as platinum, silver, etc.) to form an electrode layer, that is, the first electrode
  • the layer and the second electrode layer, as shown in FIG. 17, are the first electrode layer and the second electrode layer as indicated by the reference numerals A and B in FIG. 17, respectively.
  • the ion exchange resin layer includes a polymer electrolyte.
  • the polymer electrolyte contains cations and anions. The positions and quantities of the cations and anions in FIG. 17 are only indicative, and do not represent the actual situation.
  • IPMC material is a new type of driving material, which has the advantages of light driving, large displacement deformation, and low driving voltage.
  • the advantages of using IPMC in the driving device are obvious.
  • IPMC is a non-magnetic material and will not cause magnetic interference; the displacement and speed generated by IPMC deformation are reduced in proportion to the thickness of IPMC, and the force generated by IPMC deformation is less than the thickness of IPMC.
  • the cube increases proportionally. Therefore, the thickness of the IPMC can be set according to the actual situation to achieve the required displacement, speed and strength due to the deformation of the IPMC.
  • the ion conduction drive sheet drives the carrier 1 to move in the first direction; when the voltage applied to the ion conduction drive sheet In the case of the second voltage, the ion conduction drive plate drives the carrier 1 to move in a second direction; wherein the first voltage and the second voltage have opposite polarities, and the first direction is opposite to the The second direction is opposite to each other.
  • the ion conduction drive plate can drive the carrier 1 to move in the first direction or the second direction.
  • the first direction may be the direction in which the carrier 1 moves toward the housing 2, and the second direction may be the direction in which the carrier 1 moves away from the housing 2; the first direction may be the direction in which the carrier 1 moves away from the housing 2, and the second direction may be The carrier 1 faces the direction in which the housing 2 moves.
  • the ion conduction drive sheet drives the carrier 1 to move a first distance in the first direction;
  • the voltage of the sheet is the third voltage, the ion conduction drive sheet drives the carrier 1 to move a second distance in the first direction; wherein the first voltage and the third voltage have the same polarity, and The third voltage is greater than the first voltage, and the first distance is different from the second distance.
  • the second distance may be greater than the first distance.
  • the carrier 1 When the carrier 1 needs to move a larger distance, the carrier 1 can be driven to move a larger distance by applying a larger voltage to the ion conduction drive plate; when the carrier 1 needs to move a smaller distance, a larger distance can be applied to the ion conduction drive plate.
  • the voltage drives the carrier 1 to move a small distance.
  • the magnitude of the voltage applied to the ion-conducting drive plate can be determined according to the correspondence.
  • the ion conduction drive sheet drives the carrier 1 to move in the first direction at a first rate;
  • the voltage of the driving plate is the third voltage, the ion conduction driving plate drives the carrier 1 to move in the first direction at a second rate; wherein the first voltage and the third voltage have the same polarity, And the third voltage is greater than the first voltage, and the first rate is different from the second rate.
  • the second rate may be less than the first rate.
  • the carrier 1 When the carrier 1 is required to move at a higher speed, the carrier 1 can be driven to move at a higher speed by applying a higher voltage to the ion conduction drive plate; when the carrier 1 is required to move at a lower speed, the ion conduction drive plate can be applied
  • the small voltage drives the carrier 1 to move at a small speed.
  • the magnitude of the voltage applied to the ion-conducting drive sheet can be determined according to the correspondence.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Near-Field Transmission Systems (AREA)
  • Telephone Set Structure (AREA)

Abstract

本发明提供了一种驱动装置和电子设备，其中，驱动装置包括载体、壳体、弹性件、电致驱动片和底座；壳体和底座相配合形成容置腔体，弹性件、载体和电致驱动片依次设置于容置腔体内；载体通过弹性件与壳体活动连接，且载体用于承载功能器件；电致驱动片的第一端与底座相连接，电致驱动片的第二端与载体相连接；其中，当对电致驱动片施加电压时，电致驱动片变形并驱动载体移动。

Description

驱动装置和电子设备
相关申请的交叉引用
本申请主张在2020年04月30日在中国提交的中国专利申请号No.202010363391.9的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及电子器件领域，尤其涉及一种驱动装置和电子设备。
背景技术
目前随着电子设备的发展，人们常常通过电子设备拍摄图像。随着人们需求的提高，对图像的质量要求也越来越高。
电子设备的摄像头模组中的驱动结构，可带动镜头移动，实现自动对焦的功能，从而拍摄到更清晰的图像。
传统的驱动装置采用磁电结构来实现驱动装置的驱动，但是磁电结构会对驱动装置周围的电子器件产生干扰，影响电子器件的性能。
发明内容
本发明实施例提供一种驱动装置和电子设备，以解决目前驱动装置的磁电结构对驱动装置周围的电子器件产生干扰，影响电子器件的性能的问题。
为解决上述问题，本发明实施例是这样实现的：
本发明实施例第一方面提供一种驱动装置，包括载体、壳体、弹性件、电致驱动片和底座；
所述壳体和所述底座相配合形成容置腔体，所述弹性件、所述载体和所述电致驱动片依次设置于所述容置腔体内；
所述载体通过所述弹性件与所述壳体活动连接，且所述载体用于承载功能器件；
所述电致驱动片的第一端与所述底座相连接，所述电致驱动片的第二端与所述载体相连接；
其中，当对所述电致驱动片施加电压时，所述电致驱动片变形并驱动所述载体移动。
进一步的，还包括固定件，所述固定件位于所述容置腔体内，且所述电致驱动片设置于所述固定件和所述底座之间，所述固定件与所述电致驱动片的第一面电连接，所述电致驱动片的第二面与所述底座电连接，所述第一面和所述第二面相对分布。
进一步的，所述底座包括底座本体和第一电连接部，所述第一电连接部设置于所述底座本体，所述第一电连接部与所述固定件的第二电连接部电连接。
进一步的，所述底座本体还开设有第一凹槽；
所述第一电连接部包括第一电连接面和第一引脚，所述第一电连接面和第一引脚电连接；
其中，所述第一电连接面位于所述第一凹槽内，所述固定件的第二电连接部至少部分位于所述第一凹槽内，且通过所述第一电连接面与所述第一引脚电连接。
进一步的，所述底座还包括第三电连接部，所述底座本体开设有第二凹槽，所述第二凹槽具有承载区域；
所述第三电连接部包括设置在所述承载区域的第二电连接面和第二引脚，所述第二电连接面和第二引脚电连接；
其中，所述第二引脚位于所述第二凹槽之外，且所述第二电连接面与所述电致驱动片的第二面电连接。
进一步的，所述底座本体还设置有第四电连接部，所述第四电连接部包括第三电连接面，所述第三电连接面与所述第一电连接部间隔设置。
进一步的，所述底座为方形结构件，所述第一电连接部的数量为一个，所述第三电连接部的数量为三个，所述第一电连接部和三个所述第三电连接部分别位于所述底座的四个顶角区域。
进一步的，所述第二凹槽的槽底开设有第一通孔，所述底座本体还设置有至少两个第一定位柱，至少两个所述第一定位柱位于所述第二凹槽之外，且所述第一定位柱与所述第一电连接部或所述第三电连接部相邻分布，所述 固定件开设有与所述第一定位柱相适配的第一定位孔；
所述固定件通过所述第一定位孔与所述第一定位柱连接。
进一步的，所述第二凹槽的槽底设置有至少两个第一凸台，所述至少两个第一凸台环绕所述第一通孔分布，且所述至少两个第一凸台关于所述第一通孔的中心呈中心对称分布。
进一步的，所述至少两个第一凸台包括四个第一凸台，四个所述第一凸台环绕所述第一通孔分布，且四个所述第一凸台关于所述第一通孔的中心呈中心对称分布；
其中，所述第一凸台为矩形结构件，且所述第一凸台靠近所述第一通孔的第一边缘开设有与所述第一通孔相适配的弧形豁口。
进一步的，所述载体包括面向所述电致驱动片设置的第三表面，所述第三表面设置有第二定位柱，所述电致驱动片开设有与所述第二定位柱相适配的第一定位孔；
所述电致驱动片通过所述第一定位孔与所述第二定位柱连接。
进一步的，所述第三表面设置有第二凸台，所述底座还包括与所述第二凸台相对设置的第一凸台；
所述第一凸台的第一高度与所述第二凸台的第二高度之和大于或等于所述电致驱动片的厚度。
进一步的，所述载体还包括朝向所述弹性件的第四表面，所述第四表面设置有第三凸台。
进一步的，所述弹性件包括支架和弹性部；
所述支架固定设置于所述壳体朝向所述载体的一侧，所述弹性部与所述载体相连接。
进一步的，所述弹性部开设有第二通孔，所述第二通孔的边缘开设有多个第一豁口，所述多个第一豁口关于所述第二通孔的中心对称分布；
所述载体包括多个连接凸部，所述连接凸部的数量与所述第一豁口的数量相同，每个所述连接凸部分别通过一个第一豁口与所述弹性部连接。
进一步的，所述电致驱动片为离子传导驱动片，所述离子传导驱动片包括离子交换树脂层以及分别设置于所述离子交换树脂层相对的两个表面的第 一电极层和第二电极层，所述离子交换树脂层内具有聚合物电解质。
进一步的，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片驱动所述载体沿第一方向移动；
在施加于所述离子传导驱动片的电压为第二电压的情况下，所述离子传导驱动片驱动所述载体沿第二方向移动；
其中，所述第一电压和所述第二电压极性相反，所述第一方向与所述第二方向互为反方向。
进一步的，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片驱动所述载体沿第一方向移动第一距离；
在施加于所述离子传导驱动片的电压为第三电压的情况下，所述离子传导驱动片驱动所述载体沿第一方向移动第二距离；
其中，所述第一电压和所述第三电压极性相同，且所述第三电压大于所述第一电压，所述第一距离与所述第二距离不同。
进一步的，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片以第一速率驱动所述载体沿第一方向移动；
在施加于所述离子传导驱动片的电压为第三电压的情况下，所述离子传导驱动片以第二速率驱动所述载体沿第一方向移动；
其中，所述第一电压和所述第三电压极性相同，且所述第三电压大于所述第一电压，所述第一速率与所述第二速率不同。
本发明实施例第二方面提供一种电子设备，包括上述任一项所述的驱动装置。
本发明实施例提供一种驱动装置，包括载体，壳体、弹性件、电致驱动片和底座；所述壳体和所述底座相配合形成容置腔体，所述弹性件、所述载体和所述电致驱动片依次设置于所述容置腔体内；所述载体通过所述弹性件与所述壳体活动连接，且所述载体用于承载功能器件；所述电致驱动片的第一端与所述底座相连接，所述电致驱动片的第二端与所述载体相连接；其中，当对所述电致驱动片施加电压时，所述电致驱动片变形并驱动所述载体移动。上述驱动装置的结构中取消了磁电结构，不会对驱动装置周围的电路和器件产生磁场干扰，净化了驱动装置周围的电路和器件的工作环境。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的驱动装置的爆炸图；
图2-图15是本发明实施例提供的驱动装置的部分结构示意图；
图16是本发明实施例提供的驱动装置的截面示意图；
图17是本发明实施例提供的采用IPMC制作的电致驱动片在未施加电压的情况下的示意图；
图18、图19是本发明实施例提供的电致驱动片在施加电压的情况下的形变示意图。
具体实施方式
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。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。
请参见图1，本实施例提供一种驱动装置，包括载体1、壳体2、弹性件3、电致驱动片4和底座5；所述壳体2和所述底座5相配合形成容置腔体，所述弹性件3、所述载体1和所述电致驱动片4依次设置于所述容置腔体内；所述载体1通过所述弹性件3与所述壳体2活动连接，且所述载体1用于承载功能器件；所述电致驱动片4的第一端与所述底座5相连接，所述电致驱动片4的第二端与所述载体1相连接；其中，当对所述电致驱动片4施加电压时，所述电致驱动片4变形并驱动所述载体1移动，或者，所述电致驱动片4变形，以使所述弹性件3驱动所述载体1移动。
具体的，载体1通过所述弹性件3与所述壳体2活动连接，即载体1可以相对于壳体2移动，例如，弹性件3设置在壳体2上，载体1与弹性件3 连接，悬置在容置腔体中，载体1可在容置腔体内移动。载体1用于承载功能器件，载体1与功能器件之间可采用可拆卸连接，例如，螺纹连接或卡接，功能器件可为光学器件。例如，光学器件可以为应用于摄像头、红外传感器、闪光灯等器件的透镜(lens)或透镜组件，可以通过驱动装置来调节光学器件输出或接收光信号的光程、光学器件的发散角以及焦点等光学参数；功能器件还可为声学模组，可以通过驱动装置调节声学模组的位置，从而改变声学模组前腔或后腔的体积，以改变声学模组的音频特性等等；功能器件还可以是其他的一些活动器件，如触控笔、接口或卡托等结构，此种情况下，驱动装置为活动器件弹出的驱动结构。
电致驱动片4的第一端与所述底座5相连接，固定在底座5上，电致驱动片4的第二端与所述载体1相连接，当对所述电致驱动片4施加电压时，所述电致驱动片4变形并驱动所述载体1移动，例如，根据电致驱动片4的形变方向不同，可驱动所述载体1在朝向底座或背离底座的方向上移动。
所述电致驱动片4变形，以使所述弹性件3驱动所述载体1移动，即电致驱动片4变形反向回缩时，在弹性件3的作用下，载体1反向运动的情况。
需要说明的是，载体1悬置时，弹性件3和电致驱动片4可以共同对载体1提供作用力，使其维持悬置状态，此时弹性件3可以不处于初始状态，即弹性件3处于压缩状态或者拉伸状态，具有一定的弹性势能。在电致驱动片4通电产生变形，且沿背离底座5的一侧弯折的情况下，电致驱动片4驱动载体1向远离底座5的方向运动，此时弹性件3被压缩。
在电致驱动片4通电产生变形，且沿朝向底座5的一侧弯折的情况下，则有可能存在以下两种情况：
电致驱动片4带动载体1向靠近底座5的方向移动，同时弹性件3被拉伸，此种情况的前提为：载体1处于悬置状态时，弹性件3处于原长或者拉伸状态；
弹性件3驱动载体1向靠近底座5的方向运动，此种情况针对在载体1处于悬置状态时，弹性件3处于压缩状态的情况。
本实施例中的驱动装置，包括载体1，壳体2、弹性件3、电致驱动片4和底座5；所述壳体2和所述底座5相配合形成容置腔体，所述弹性件3、所 述载体1和所述电致驱动片4依次设置于所述容置腔体内；所述载体1通过所述弹性件3与所述壳体2活动连接，且所述载体1用于承载功能器件；所述电致驱动片4的第一端与所述底座5相连接，所述电致驱动片4的第二端与所述载体1相连接；其中，当对所述电致驱动片4施加电压时，所述电致驱动片4变形并驱动所述载体1移动。上述驱动装置的结构中取消了磁电结构，不会对驱动装置周围的电路和器件产生磁场干扰，净化了驱动装置周围的电路和器件的工作环境。
如图1所示，驱动装置还包括固定件6，所述固定件6位于所述容置腔体内，且所述电致驱动片4设置于所述固定件6和所述底座5之间，所述固定件6与所述电致驱动片4的第一面电连接，所述电致驱动片4的第二面与所述底座电连接，所述第一面和所述第二面相对分布。
固定件6用于将电致驱动片4固定在底座5上，并且固定件6与所述电致驱动片4的第一面电连接，即固定件6还用于为电致驱动片4传导电流。固定件6可为金属件。电致驱动片4的第一面与固定件6电连接，电致驱动片4的第二面与底座5电连接，这样，可通过对固定件6和底座5施加电压，来实现对电致驱动片4施加电压，使得电致驱动片4产生形变，驱动所述载体1移动。
可选地，如图9所示，固定件6为中间开设有通孔的框体结构，该框体结构为八边形结构，其中，八边形结构中间隔设置的四条边上设置有凸出部，每个凸出部上设置有一个第一定位孔61。
如图2-图4所示，所述底座5包括底座本体51和第一电连接部52，所述第一电连接部52设置于所述底座本体51，所述第一电连接部52与所述固定件6的第二电连接部电连接，用于向所述固定件6传导电流。第一电连接部52可位于底座本体51四个角的位置，底座本体51四个角处可分别设置一个固定件6；或者，如图9所示的固定件6，在此种情况下，固定件6为环状，固定件6的第二电连接部可同时设置在底座本体51四个角的位置处，与第一电连接部52电连接。
第一电连接部52可采用嵌入成型注塑技术(Insert Molding，简称I/M技术)在底座本体51上注塑而成。
图11所示为载体1、电致驱动片4、底座5和固定件6之间的位置关系图，其中，固定件6采用图9所示的固定件结构。
进一步的，所述底座本体51还开设有第一凹槽511；所述第一电连接部52包括第一电连接面521和第一引脚522，所述第一电连接面521和第一引脚522电连接；其中，所述第一电连接面521位于所述第一凹槽511内，所述固定件6的第二电连接部至少部分位于所述第一凹槽511内，且通过所述第一电连接面521与所述第一引脚522电连接，第一引脚522位于底座本体51背离电致驱动片4的一侧。所述第一电连接面521位于所述第一凹槽511内，所述固定件6的第二电连接部至少部分位于所述第一凹槽511内，使得第一电连接面521和固定件6的第二电连接部接触良好，可实现电导通。可选的，所述第一凹槽511的槽口形状为三角形、梯形或者五边形。
进一步的，所述底座5还包括第三电连接部53，所述底座本体51开设有第二凹槽514(如图2中心区域的八边形凹槽)，第二凹槽514为电致驱动片4的容纳槽，所述第二凹槽514具有承载区域512；所述第三电连接部53包括设置在所述承载区域512的第二电连接面531和第二引脚532，所述第二电连接面531和第二引脚532电连接；其中，所述第二引脚532位于所述第二凹槽514之外，且所述第二电连接面531与所述电致驱动片4的第二面电连接。
在向第一引脚522和第二引脚532组成的两端施加电压时，第一引脚522通过固定件6与电致驱动片4的第一面导通，第二引脚532通过第二电连接面531与电致驱动片4的第二面导通。这样，可通过向第一引脚522和第二引脚532组成的两端施加电压，来实现对电致驱动片4施加电压，使得电致驱动片4产生形变，驱动所述载体1移动。
第三电连接部53可采用I/M技术在底座本体51上注塑而成。
图10所示为载体1、电致驱动片4和底座5之间的位置关系图，其中，第二凹槽514具有多个承载区域512，每个承载区域512上覆盖有一个电致驱动片4。
进一步的，所述底座5还设置有第四电连接部，所述第四电连接部包括第三电连接面551，所述第三电连接面551与所述第一电连接部52间隔设置。 可选的，第三电连接面551处设置有一个电致驱动片4，第三电连接面551可与第二电连接面531电连接，第三电连接面551还与电致驱动片4的第二面电连接，第一电连接部52与电致驱动片4的第一面电连接。这样，可通过向第一引脚522和第二引脚532组成的两端施加电压，来实现对电致驱动片4施加电压，使得电致驱动片4产生形变，驱动所述载体1移动。
进一步的，所述底座5可以为方形结构件，所述第一电连接部52的数量为一个，所述第三电连接部53的数量为三个，所述第一电连接部和三个所述第三电连接部53分别位于所述底座5的四个顶角区域。可为每个第三电连接部53设置一个电致驱动片4，并使第三电连接部53的第二电连接面531与其对应的电致驱动片4的第二面电连接。当然，在本发明的其他实施例中，底座5可以为圆形结构件或者八边形结构件等，本发明对底座5的形状不作具体限定。
进一步的，如图4所示，所述第二凹槽514的槽底开设有第一通孔515，所述底座本体51还设置有至少两个第一定位柱513，至少两个所述第一定位柱513位于所述第二凹槽514之外，且所述第一定位柱513与所述第一电连接部52或所述第三电连接部53相邻分布，所述固定件6开设有与所述第一定位柱513相适配的第一定位孔61；所述固定件6通过所述第一定位孔61与所述第一定位柱513连接。第一定位孔61与第一定位柱513可通过热铆等方式进行固定。
如图4所示，至少两个第一定位柱513可为四个，这个四个第一定位柱513对称分布，例如，可设置在底座本体51四个角的位置处。如图9所示，固定件6上设置有第一定位孔61，第一定位孔61的个数和位置与第一定位柱513的个数和位置相适配。
进一步的，所述第二凹槽514的槽底设置有至少两个第一凸台，所述至少两个第一凸台环绕所述第一通孔515分布，且所述第一凸台关于所述第一通孔515的中心呈中心对称分布。载体1在容置腔体中移动时，至少两个第一凸台可起到载体1对第二凹槽514的防撞作用。具体的，所述至少两个第一凸台包括四个第一凸台54，四个所述第一凸台54环绕所述第一通孔515分布，且四个所述第一凸台54关于所述第一通孔515的中心呈中心对称分布； 其中，所述第一凸台54为矩形结构件，且所述第一凸台54靠近所述第一通孔515的第一边缘开设有与所述第一通孔515相适配的弧形豁口。
如图5、图6所示，所述载体1包括面向所述电致驱动片4设置的第三表面11，所述第三表面11设置有第二定位柱111，所述电致驱动片4开设有与所述第二定位柱111相适配的第二定位孔41；所述电致驱动片4通过所述第二定位孔41与所述第二定位柱111连接，以实现电致驱动片4与所述载体1之间的连接。第二定位柱111可为塑料柱，第二定位孔41可为盲孔或者通孔。第二定位柱111与第二定位孔41通过热铆或者点胶等方式连接。
如图4、图5所示，所述第三表面11设置有第二凸台112，所述底座5还包括与所述第二凸台112相对设置的第一凸台54；可选的，所述第一凸台的第一高度与所述第二凸台的第二高度之和大于或等于所述电致驱动片4的厚度，从而在载体1朝向所述底座5移动时，避免载体1过度挤压电致驱动片4，导致电致驱动片4损坏。
可选地，如图6所示，电致驱动片4包括主体结构，以及根据所述主体结构延伸形成的端子，端子的宽度大于主体结构的宽度，端子具体可为梯形结构、三角形结构或矩形结构，主体结构可为矩形结构。第二定位孔41位于所述主体结构上，具体可位于主体结构上远离所述端子的一端。载体1与主体结构的一部分相接触，端子凸出于载体1的边缘之外。
如图7所示，所述载体1还包括朝向所述弹性件3的第四表面12，所述第四表面12设置有第三凸台121，避免载体1在朝向壳体2移动时，撞击或挤压到壳体2。
如图7所述，载体1设置有通孔，通孔边缘设置有螺纹结构，载体1可通过该螺纹结构与功能器件进行连接。载体1的四个角的位置处设置有阶梯状平台结构。可选的，载体可以为八边形结构件。
如图8所示，所述弹性件3包括支架31和弹性部32；所述支架31固定设置于所述壳体2朝向所述载体1的一侧，所述弹性部32与所述载体1相连接。通过弹性件可将载体1悬置在容置腔体中。可选地，弹性部32具有弹性绕线部，例如，弹性绕线部可设置在支架31中的角部位置。弹性绕线部的两端与支架31连接，弹性绕线部的绕线部分互不相交，从而形成镂空区域。图 8中，支架31包括四个角部位置，这四个角部位置分别设置有四个弹性绕线部。
如图7、图8所示，所述弹性部32开设有第二通孔，所述第二通孔的边缘开设有多个第一豁口321，所述多个第一豁口321关于所述第二通孔的中心对称分布；所述载体1包括多个连接凸部13，所述连接凸部13的数量与所述第一豁口的数量321相同，每个所述连接凸部13分别通过一个第一豁口321与所述弹性部32连接。连接凸部13与第一豁口321之间具体可为可拆卸连接，具体可为卡接。进一步的，还可将载体1与第二通孔的边缘相接触的部分采用胶水进行固定，以进一步将载体1与弹性部32固定连接。
如图12所示，所述壳体2包括至少两个第四凸台21，第四凸台21用于承载支架31。图12中，所述壳体2包括四个第四凸台21，分别设置在壳体的四个角部位置，这四个第四凸台21承载所述支架31，第四凸台21与支架31之间可通过胶水进行固定，图13所示为所述弹性件3与壳体2之间的位置关系图。
所述壳体2还包括接地脚22，所述脚22用作驱动装置的接地端，以减少驱动装置工作过程中产生的静电。
图14所示为底座5、载体1以及弹性件3之间的位置关系图。图15所示为在图14所示的结构上增加了壳体2的结构示意图。图16所述为本实施例提供的驱动装置的截面结构示意图。
进一步的，所述电致驱动片4为离子传导驱动片，所述离子传导驱动片包括离子交换树脂层以及分别设置于所述离子交换树脂层相对的两个表面的第一电极层和第二电极层，所述离子交换树脂层内具有聚合物电解质。
具体的，电致驱动片4可采用离子交换聚合金属材料(ion-exchange polymer metal composite，简称IPMC)制作。IPMC材料是一种新型电致动功能材料，以离子交换树脂层(如氟碳聚合物等)为基体，在基体表面镀贵金属(如铂、银等)，以形成电极层，即第一电极层和第二电极层，如图17所示，图17中标号A和标号B所示分别为第一电极层和第二电极层。离子交换树脂层包括聚合物电解质，聚合物电解质中含有阳离子和阴离子，图17中阳离子和阴离子的位置及数量仅为示意，不代表实际情况。
如图18、图19所示，当对IPMC在厚度方向施加电压时，聚合物电解质中的水合阳离子会移动到阴极侧，引起IPMC的阳极面和阴极面溶胀的差异，从而产生变形，向阳极面弯曲，这样，可通过控制IPMC的通电电压或者电流来控制IPMC弯曲程度，使得IPMC在横向方向上产生位移。
IPMC材料为一种新型驱动材料，具有驱动质轻、产生位移形变大、驱动电压低等优点。驱动装置中采用IPMC的优势明显，例如，IPMC为非磁性材料，不会产生磁干扰；IPMC变形产生的位移和速度与IPMC的厚度成比例地减小，IPMC变形产生的力与IPMC的厚度的立方成比例地增大。因此，可根据实际情况来设置IPMC的厚度，以达到所需的IPMC变形产生的位移、速度和力度。
进一步的，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片驱动所述载体1沿第一方向移动；在施加于所述离子传导驱动片的电压为第二电压的情况下，所述离子传导驱动片驱动所述载体1沿第二方向移动；其中，所述第一电压和所述第二电压极性相反，所述第一方向与所述第二方向互为反方向。通过向离子传导驱动片施加极性相反的电压，可使得离子传导驱动片驱动所述载体1沿第一方向或第二方向移动。第一方向可为载体1朝向壳体2移动的方向，第二方向可为载体1背离壳体2移动的方向；第一方向可为载体1背离壳体2移动的方向，第二方向可为载体1朝向壳体2移动的方向。
进一步的，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片驱动所述载体1沿第一方向移动第一距离；在施加于所述离子传导驱动片的电压为第三电压的情况下，所述离子传导驱动片驱动所述载体1沿第一方向移动第二距离；其中，所述第一电压和所述第三电压极性相同，且所述第三电压大于所述第一电压，所述第一距离与所述第二距离不同。第二距离可大于第一距离。当需要载体1移动较大距离时，可通过向离子传导驱动片施加较大电压来驱动载体1移动较大距离；当需要载体1移动较小距离时，可通过向离子传导驱动片施加较大电压来驱动载体1移动较小距离。施加于离子传导驱动片的电压大小与载体1的移动距离之间具有对应关系，在确定载体1需要移动的距离的情况下，可根据该对应关系来确定 施加于离子传导驱动片的电压大小。
进一步的，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片以第一速率驱动所述载体1沿第一方向移动；在施加于所述离子传导驱动片的电压为第三电压的情况下，所述离子传导驱动片以第二速率驱动所述载体1沿第一方向移动；其中，所述第一电压和所述第三电压极性相同，且所述第三电压大于所述第一电压，所述第一速率与所述第二速率不同。第二速率可小于第一速率。当需要载体1移动速率较大时，可通过向离子传导驱动片施加较大电压来驱动载体1以较大速率进行移动；当需要载体1移动速率较小时，可通过向离子传导驱动片施加较小电压来驱动载体1以较小速率进行移动。施加于离子传导驱动片的电压大小与载体1的移动速率之间具有对应关系，在确定载体1需要移动的速率的情况下，可根据该对应关系来确定施加于离子传导驱动片的电压大小。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (20)

  1. 一种驱动装置，包括载体、壳体、弹性件、电致驱动片和底座；
    所述壳体和所述底座相配合形成容置腔体，所述弹性件、所述载体和所述电致驱动片依次设置于所述容置腔体内；
    所述载体通过所述弹性件与所述壳体活动连接，且所述载体用于承载功能器件；
    所述电致驱动片的第一端与所述底座相连接，所述电致驱动片的第二端与所述载体相连接；
    其中，当对所述电致驱动片施加电压时，所述电致驱动片变形并驱动所述载体移动。
  2. 根据权利要求1所述的驱动装置，还包括固定件，所述固定件位于所述容置腔体内，且所述电致驱动片设置于所述固定件和所述底座之间，所述固定件与所述电致驱动片的第一面电连接，所述电致驱动片的第二面与所述底座电连接，所述第一面和所述第二面相对分布。
  3. 根据权利要求2所述的驱动装置，其中，所述底座包括底座本体和第一电连接部，所述第一电连接部设置于所述底座本体，所述第一电连接部与所述固定件的第二电连接部电连接。
  4. 根据权利要求3所述的驱动装置，其中，所述底座本体还开设有第一凹槽；
    所述第一电连接部包括第一电连接面和第一引脚，所述第一电连接面和第一引脚电连接；
    其中，所述第一电连接面位于所述第一凹槽内，所述固定件的第二电连接部至少部分位于所述第一凹槽内，且通过所述第一电连接面与所述第一引脚电连接。
  5. 根据权利要求3所述的驱动装置，其中，所述底座还包括第三电连接部，所述底座本体开设有第二凹槽，所述第二凹槽具有承载区域；
    所述第三电连接部包括设置在所述承载区域的第二电连接面和第二引脚，所述第二电连接面和第二引脚电连接；
    其中，所述第二引脚位于所述第二凹槽之外，且所述第二电连接面与所述电致驱动片的第二面电连接。
  6. 根据权利要求5所述的驱动装置，其中，所述底座本体还设置有第四电连接部，所述第四电连接部包括第三电连接面，所述第三电连接面与所述第一电连接部间隔设置。
  7. 根据权利要求6所述的驱动装置，其中，所述底座为方形结构件，所述第一电连接部的数量为一个，所述第三电连接部的数量为三个，所述第一电连接部和三个所述第三电连接部分别位于所述底座的四个顶角区域。
  8. 根据权利要求5所述的驱动装置，其中，所述第二凹槽的槽底开设有第一通孔，所述底座本体还设置有至少两个第一定位柱，至少两个所述第一定位柱位于所述第二凹槽之外，且所述第一定位柱与所述第一电连接部或所述第三电连接部相邻分布，所述固定件开设有与所述第一定位柱相适配的第一定位孔；
    所述固定件通过所述第一定位孔与所述第一定位柱连接。
  9. 根据权利要求8所述的驱动装置，其中，所述第二凹槽的槽底设置有至少两个第一凸台，所述至少两个第一凸台环绕所述第一通孔分布，且所述至少两个第一凸台关于所述第一通孔的中心呈中心对称分布。
  10. 根据权利要求9所述的驱动装置，其中，所述至少两个第一凸台包括四个第一凸台，四个所述第一凸台环绕所述第一通孔分布，且四个所述第一凸台关于所述第一通孔的中心呈中心对称分布；
    其中，所述第一凸台为矩形结构件，且所述第一凸台靠近所述第一通孔的第一边缘开设有与所述第一通孔相适配的弧形豁口。
  11. 根据权利要求1所述的驱动装置，其中，所述载体包括面向所述电致驱动片设置的第三表面，所述第三表面设置有第二定位柱，所述电致驱动片开设有与所述第二定位柱相适配的第一定位孔；
    所述电致驱动片通过所述第一定位孔与所述第二定位柱连接。
  12. 根据权利要求11所述的驱动装置，其中，所述第三表面设置有第二凸台，所述底座还包括与所述第二凸台相对设置的第一凸台；
    所述第一凸台的第一高度与所述第二凸台的第二高度之和大于或等于所 述电致驱动片的厚度。
  13. 根据权利要求12所述的驱动装置，其中，所述载体还包括朝向所述弹性件的第四表面，所述第四表面设置有第三凸台。
  14. 根据权利要求1所述的驱动装置，其中，所述弹性件包括支架和弹性部；
    所述支架固定设置于所述壳体朝向所述载体的一侧，所述弹性部与所述载体相连接。
  15. 根据权利要求14所述的驱动装置，其中，所述弹性部开设有第二通孔，所述第二通孔的边缘开设有多个第一豁口，所述多个第一豁口关于所述第二通孔的中心对称分布；
    所述载体包括多个连接凸部，所述连接凸部的数量与所述第一豁口的数量相同，每个所述连接凸部分别通过一个第一豁口与所述弹性部连接。
  16. 根据权利要求1所述的驱动装置，其中，所述电致驱动片为离子传导驱动片，所述离子传导驱动片包括离子交换树脂层以及分别设置于所述离子交换树脂层相对的两个表面的第一电极层和第二电极层，所述离子交换树脂层内具有聚合物电解质。
  17. 根据权利要求16所述的驱动装置，其中，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片驱动所述载体沿第一方向移动；
    在施加于所述离子传导驱动片的电压为第二电压的情况下，所述离子传导驱动片驱动所述载体沿第二方向移动；
    其中，所述第一电压和所述第二电压极性相反，所述第一方向与所述第二方向互为反方向。
  18. 根据权利要求16所述的驱动装置，其中，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片驱动所述载体沿第一方向移动第一距离；
    在施加于所述离子传导驱动片的电压为第三电压的情况下，所述离子传导驱动片驱动所述载体沿第一方向移动第二距离；
    其中，所述第一电压和所述第三电压极性相同，且所述第三电压大于所 述第一电压，所述第一距离与所述第二距离不同。
  19. 根据权利要求16所述的驱动装置，其中，在施加于所述离子传导驱动片的电压为第一电压的情况下，所述离子传导驱动片以第一速率驱动所述载体沿第一方向移动；
    在施加于所述离子传导驱动片的电压为第三电压的情况下，所述离子传导驱动片以第二速率驱动所述载体沿第一方向移动；
    其中，所述第一电压和所述第三电压极性相同，且所述第三电压大于所述第一电压，所述第一速率与所述第二速率不同。
  20. 一种电子设备，包括权利要求1-19中任一项所述的驱动装置。
PCT/CN2021/089548 2020-04-30 2021-04-25 驱动装置和电子设备 WO2021218840A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010363391.9 2020-04-30
CN202010363391.9A CN113589466B (zh) 2020-04-30 2020-04-30 驱动装置和电子设备

Publications (1)

Publication Number Publication Date
WO2021218840A1 true WO2021218840A1 (zh) 2021-11-04

Family

ID=78237314

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/089548 WO2021218840A1 (zh) 2020-04-30 2021-04-25 驱动装置和电子设备

Country Status (2)

Country Link
CN (1) CN113589466B (zh)
WO (1) WO2021218840A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115348382A (zh) * 2022-08-22 2022-11-15 维沃移动通信有限公司 摄像模组和电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101881872A (zh) * 2009-05-08 2010-11-10 三美电机株式会社 透镜驱动装置
CN101893748A (zh) * 2009-05-19 2010-11-24 三美电机株式会社 透镜驱动装置、装入方法以及sma组件
US20130163106A1 (en) * 2011-12-27 2013-06-27 Hon Hai Precision Industry Co., Ltd. Auto-focusing lens module
WO2019175114A1 (de) * 2018-03-13 2019-09-19 Hensoldt Optronics Gmbh Kamerasystem
CN209895122U (zh) * 2019-06-25 2020-01-03 新思考电机有限公司 驱动装置、相机模组及电子设备

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1771766B1 (en) * 2004-07-26 2018-06-13 Ricoh Company, Ltd. Lens barrel, camera and mobile information terminal
JP2006350092A (ja) * 2005-06-17 2006-12-28 Sony Corp 移動機構及びこれを備えた撮像装置
US7738198B2 (en) * 2005-07-22 2010-06-15 Casio Hitachi Mobile Communications Co., Ltd. Imaging device, lens drive control method and recording medium
CN101191897B (zh) * 2006-11-29 2010-05-26 鸿富锦精密工业（深圳）有限公司 可移动透镜模组及包括该透镜模组的镜头模组
GB0702676D0 (en) * 2007-02-12 2007-03-21 1 Ltd Method of driving a shape memory alloy actuator
KR20110081166A (ko) * 2008-10-02 2011-07-13 코니카 미놀타 옵토 인코포레이티드 구동 장치 및 촬상 장치
CN102334275B (zh) * 2009-03-27 2014-10-29 阿尔卑斯电气株式会社 致动装置及输入装置
KR20110080297A (ko) * 2010-01-05 2011-07-13 한 상 이 압전 액추에이팅 장치
JP2012080611A (ja) * 2010-09-30 2012-04-19 Nikon Corp 圧電アクチュエータ、レンズ鏡筒及びカメラ
JP6004726B2 (ja) * 2012-04-25 2016-10-12 キヤノン株式会社 撮像装置
JP6155460B2 (ja) * 2013-06-06 2017-07-05 新シコー科技株式会社 駆動部材、リニア駆動装置、カメラ装置及び電子機器
CN106873119B (zh) * 2015-12-11 2019-12-31 宁波舜宇光电信息有限公司 应用热变驱动器的镜头组件和摄像模组及其自动对焦方法
CN105607215B (zh) * 2016-03-23 2017-11-10 宁波金诚泰电子有限公司 一种光学防抖音圈马达
JP7009055B2 (ja) * 2016-10-26 2022-01-25 Tdk株式会社 レンズ駆動装置
CN113848626B (zh) * 2017-05-17 2023-08-15 台湾东电化股份有限公司 驱动机构
CN107942468B (zh) * 2017-11-13 2020-06-19 北京小米移动软件有限公司 图像采集模组及终端
TWI638220B (zh) * 2017-11-30 2018-10-11 大陽科技股份有限公司 鏡頭驅動裝置、攝影模組與電子裝置
CN107911591B (zh) * 2017-12-11 2020-03-31 Oppo广东移动通信有限公司 一种摄像头模组、电子装置及其控制方法
JP7073934B2 (ja) * 2018-06-15 2022-05-24 カシオ計算機株式会社 レンズユニットとセンサープレートの実装構造、及び撮像装置、レンズユニットとセンサープレートの実装方法
CN109001916A (zh) * 2018-09-04 2018-12-14 Oppo广东移动通信有限公司 智能变色眼镜以及控制智能变色眼镜进行变色的方法
CN209400775U (zh) * 2019-02-20 2019-09-17 南昌欧菲晶润科技有限公司 镜头组件、摄像模组及智能终端
CN109889711B (zh) * 2019-03-11 2021-06-15 昆山丘钛微电子科技有限公司 摄像模组

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101881872A (zh) * 2009-05-08 2010-11-10 三美电机株式会社 透镜驱动装置
CN101893748A (zh) * 2009-05-19 2010-11-24 三美电机株式会社 透镜驱动装置、装入方法以及sma组件
US20130163106A1 (en) * 2011-12-27 2013-06-27 Hon Hai Precision Industry Co., Ltd. Auto-focusing lens module
WO2019175114A1 (de) * 2018-03-13 2019-09-19 Hensoldt Optronics Gmbh Kamerasystem
CN209895122U (zh) * 2019-06-25 2020-01-03 新思考电机有限公司 驱动装置、相机模组及电子设备

Also Published As

Publication number Publication date
CN113589466B (zh) 2023-03-10
CN113589466A (zh) 2021-11-02

Similar Documents

Publication Publication Date Title
US11768346B2 (en) Optical mechanism
CN111641761B (zh) 摄像头模组及电子设备
US9634225B2 (en) Artificial muscle camera lens actuator
US20220191359A1 (en) Camera device
US7800847B2 (en) Optical element module and image pickup device
US11982866B2 (en) Optical element driving mechanism having movable portion for holding lens
WO2020103438A1 (zh) 驱动机构、摄像头模组及电子设备
US10809487B2 (en) Optical system
US11693213B2 (en) Optical system
WO2021218840A1 (zh) 驱动装置和电子设备
US20200209515A1 (en) Optical system
US11662650B2 (en) Optical element driving mechanism
WO2022063073A1 (zh) 防抖模组、摄像模组和电子设备
WO2021238853A1 (zh) 驱动装置和电子设备
WO2022143605A1 (zh) 电子设备及其摄像头模组
US10684447B2 (en) Optical driving mechanism
US11320626B2 (en) Lens autofocus actuating device
CN211606596U (zh) 摄像头模组及数码装置
CN113132564A (zh) 摄像头模组及数码装置
CN111405156A (zh) 摄像模组及电子设备
US8830385B2 (en) Drive unit, lens module, and image pickup unit
WO2021249473A1 (zh) 驱动装置、摄像头模组及电子设备
CN215581432U (zh) 光学防抖装置、电子设备
CN210041619U (zh) 一种胶体镜头马达
CN114125185A (zh) 摄像头模组及电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21796958

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21796958

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 04/05/2023)

122 Ep: pct application non-entry in european phase

Ref document number: 21796958

Country of ref document: EP

Kind code of ref document: A1