CN113589466B

CN113589466B - Driving device and electronic apparatus

Info

Publication number: CN113589466B
Application number: CN202010363391.9A
Authority: CN
Inventors: 许能华; 李文珍
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2023-03-10
Anticipated expiration: 2040-04-30
Also published as: WO2021218840A1; CN113589466A

Abstract

The invention provides a driving device and electronic equipment, wherein the driving device comprises a carrier, a shell, an elastic piece, an electric drive sheet and a base; the shell and the base are matched to form an accommodating cavity, and the elastic piece, the carrier and the electric drive sheet are sequentially arranged in the accommodating cavity; the carrier is movably connected with the shell through the elastic piece and is used for bearing a functional device; the first end of the electrodrive sheet is connected with the base, and the second end of the electrodrive sheet is connected with the carrier; wherein when a voltage is applied to the electro-driver blade, the electro-driver blade deforms and drives the carrier to move. The structure of the driving device cancels a magnetoelectric structure, does not generate magnetic field interference on circuits and devices around the driving device, and purifies the working environment of the circuits and devices around the driving device.

Description

Driving device and electronic apparatus

Technical Field

The present invention relates to the field of electronic devices, and in particular, to a driving device and an electronic apparatus.

Background

With the development of electronic devices, people often take images through the electronic devices. With the increasing demand of people, the requirements on the quality of images are higher and higher.

The driving structure in the camera module of the electronic equipment can drive the lens to move, so that the automatic focusing function is realized, and a clearer image is shot.

The conventional driving device adopts a magnetoelectric structure to realize the driving of the driving device, but the magnetoelectric structure can generate interference on electronic devices around the driving device and influence the performance of the electronic devices.

Disclosure of Invention

The embodiment of the invention provides a driving device and electronic equipment, and aims to solve the problem that the magnetoelectric structure of the conventional driving device generates interference on electronic devices around the driving device and influences the performance of the electronic devices.

To solve the above problem, the embodiment of the present invention is implemented as follows:

the first aspect of the embodiments of the present invention provides a driving device, including a carrier, a housing, an elastic member, an electric driving sheet, and a base;

the shell and the base are matched to form an accommodating cavity, and the elastic piece, the carrier and the electric drive sheet are sequentially arranged in the accommodating cavity;

the carrier is movably connected with the shell through the elastic piece and is used for bearing a functional device;

the first end of the electrodrive sheet is connected with the base, and the second end of the electrodrive sheet is connected with the carrier;

wherein when a voltage is applied to the electro-active plate, the electro-active plate deforms and drives the carrier to move.

Furthermore, the electric-driven-type power supply device further comprises a fixing piece, wherein the fixing piece is located in the accommodating cavity, the electric-driven driving sheet is arranged between the fixing piece and the base, the fixing piece is electrically connected with a first surface of the electric-driven driving sheet, a second surface of the electric-driven driving sheet is electrically connected with the base, and the first surface and the second surface are distributed relatively.

Further, 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.

Further, the base body is also provided with a first groove;

the first electric connection part comprises a first electric connection surface and a first pin, and the first electric connection surface is electrically connected with the first pin;

the first electric connection surface is positioned in the first groove, and the second electric connection part of the fixing piece is at least partially positioned in the first groove and is electrically connected with the first pin through the first electric connection surface.

Further, the base further comprises a third electric connection part, the base body is provided with a second groove, and the second groove is provided with a bearing area;

the third electric connection part comprises a second electric connection surface and a second pin which are arranged in the bearing area, and the second electric connection surface is electrically connected with the second pin;

the second pin is positioned outside the second groove, and the second electrical connection surface is electrically connected with the second surface of the electro-driving sheet.

Further, the base body is further provided with a fourth electric connection portion, the fourth electric connection portion comprises a third electric connection surface, and the third electric connection surface is arranged at intervals with the first electric connection portion.

Further, the base is square structure, the quantity of first electric connection portion is one, the quantity of third electric connection portion is three, first electric connection portion and three third electric connection portion are located respectively the four apex angle regions of base.

Furthermore, a first through hole is formed in the bottom of the second groove, at least two first positioning columns are further arranged on the base body and located outside the second groove, the first positioning columns are distributed adjacent to the first electric connecting portion or the third electric connecting portion, and the fixing piece is provided with a first positioning hole matched with the first positioning column;

the fixing piece is connected with the first positioning column through the first positioning hole.

Furthermore, at least two first bosses are arranged at the bottom of the second groove, the at least two first bosses are distributed around the first through holes, and the at least two first bosses are distributed in a central symmetry mode about the centers of the first through holes.

Further, the at least two first bosses comprise four first bosses, the four first bosses are distributed around the first through hole, and the four first bosses are distributed in central symmetry around the center of the first through hole;

the first boss is a rectangular structural member, and an arc-shaped opening matched with the first through hole is formed in the first edge, close to the first through hole, of the first boss.

Furthermore, the carrier comprises a third surface facing the electric drive sheet, a second positioning column is arranged on the third surface, and a first positioning hole matched with the second positioning column is formed in the electric drive sheet;

the electric drive sheet is connected with the second positioning column through the first positioning hole.

Further, a second boss is arranged on the third surface, and the base further comprises 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 larger than or equal to the thickness of the electro-driven sheet.

Further, the carrier further comprises a fourth surface facing the elastic member, and the fourth surface is provided with a third boss.

Further, the elastic member comprises a bracket and an elastic part;

the support is fixedly arranged on one side, facing the carrier, of the shell, and the elastic part is connected with the carrier.

Further, the elastic part 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 around the center of the second through hole;

the carrier comprises a plurality of connecting convex parts, the number of the connecting convex parts is the same as that of the first gaps, and each connecting convex part is connected with the elastic part through one first gap.

Furthermore, the electric drive sheet is an ion conduction drive sheet, the ion conduction drive sheet comprises an ion exchange resin layer, and a first electrode layer and a second electrode layer which are respectively arranged on two opposite surfaces of the ion exchange resin layer, and a polymer electrolyte is arranged in the ion exchange resin layer.

Further, the ion-conducting driving plate drives the carrier to move in a first direction in the case that the voltage applied to the ion-conducting driving plate is a first voltage;

in the case that the voltage applied to the ion-conducting driving plate is a second voltage, the ion-conducting driving plate drives the carrier to move along a second direction;

the first voltage and the second voltage have opposite polarities, and the first direction and the second direction are opposite directions.

Further, in the event that the voltage applied to the ion-conducting driver plate is a first voltage, the ion-conducting driver plate drives the carrier to move a first distance in a first direction;

the ion-conducting driving plate drives the carrier to move a second distance in the first direction when the voltage applied to the ion-conducting driving plate is a third voltage;

wherein the first voltage and the third voltage have the same polarity, the third voltage is greater than the first voltage, and the first distance is different from the second distance.

Further, in the event that the voltage applied to the ion-conducting driver plate is a first voltage, the ion-conducting driver plate drives the carrier in a first direction at a first rate;

driving the carrier in a first direction at a second rate by the ion-conducting driver plate when the voltage applied to the ion-conducting driver plate is a third voltage;

wherein the first voltage and the third voltage have the same polarity, 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 any one of the driving apparatuses described above.

The embodiment of the invention provides a driving device, which comprises a carrier, a shell, an elastic piece, an electric drive sheet and a base, wherein the shell is provided with a first end and a second end; the shell and the base are matched to form an accommodating cavity, and the elastic piece, the carrier and the electric drive sheet are sequentially arranged in the accommodating cavity; the carrier is movably connected with the shell through the elastic piece and is used for bearing a functional device; the first end of the electrodrive sheet is connected with the base, and the second end of the electrodrive sheet is connected with the carrier; wherein when a voltage is applied to the electro-active plate, the electro-active plate deforms and drives the carrier to move. The structure of the driving device cancels a magnetoelectric structure, does not generate magnetic field interference on circuits and devices around the driving device, and purifies the working environment of the circuits and devices around the driving device.

Drawings

Fig. 1 is an exploded view of a driving apparatus provided in an embodiment of the present invention;

2-15 are partial structural schematic diagrams of a driving device provided by the embodiment of the invention;

FIG. 16 is a schematic cross-sectional view of a drive arrangement provided by an embodiment of the present invention;

FIG. 17 is a schematic diagram of an electro-driver plate fabricated by IPMC according to an embodiment of the present invention without applying voltage;

fig. 18 and fig. 19 are schematic diagrams of deformation of the electro-driving plate under the condition of applying voltage according to the embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present embodiment provides a driving device, which includes a carrier 1, a housing 2, an elastic member 3, an electro-driving plate 4 and a base 5; the shell 2 and the base 5 are matched to form an accommodating cavity, and the elastic part 3, the carrier 1 and the electro-driving sheet 4 are sequentially arranged in the accommodating cavity; the carrier 1 is movably connected with the shell 2 through the elastic piece 3, and the carrier 1 is used for carrying functional devices; the first end of the electrodrive sheet 4 is connected with the base 5, and the second end of the electrodrive sheet 4 is connected with the carrier 1; when voltage is applied to the electro-driving sheet 4, the electro-driving sheet 4 deforms and drives the carrier 1 to move, or the electro-driving sheet 4 deforms, so that the elastic piece 3 drives the carrier 1 to move.

Specifically, the carrier 1 is movably connected to the housing 2 through the elastic member 3, that is, the carrier 1 can move relative to the housing 2, for example, the elastic member 3 is disposed on the housing 2, the carrier 1 is connected to the elastic member 3 and suspended in the accommodating cavity, and the carrier 1 can move in the accommodating cavity. The carrier 1 is used for carrying the functional device, the carrier 1 and the functional device can be detachably connected, for example, screwed connection or clamping connection, and the functional device can be an optical device. For example, the optical device may be a lens (lens) or a lens assembly applied to a camera, an infrared sensor, a flash lamp, etc., and optical parameters such as an optical path of an optical signal output or received by the optical device, a divergence angle and a focus of the optical device, etc. may be adjusted by the driving device; the functional device can also be an acoustic module, and the position of the acoustic module can be adjusted through the driving device, so that the volume of a front cavity or a rear cavity of the acoustic module is changed, the audio characteristic of the acoustic module is changed, and the like; the functional device may also be some other movable devices, such as a stylus, an interface, or a card holder, in which case the driving device is a driving structure for ejecting the movable device.

The first end of the electrodrive sheet 4 is connected with the base 5 and fixed on the base 5, the second end of the electrodrive sheet 4 is connected with the carrier 1, when a voltage is applied to the electrodrive sheet 4, the electrodrive sheet 4 deforms and drives the carrier 1 to move, for example, according to the deformation direction of the electrodrive sheet 4, the carrier 1 can be driven to move towards the base or away from the base.

The electrodrive sheet 4 deforms to enable the elastic member 3 to drive the carrier 1 to move, namely when the electrodrive sheet 4 deforms and retracts reversely, the carrier 1 moves reversely under the action of the elastic member 3.

It should be noted that, when the carrier 1 is suspended, the elastic element 3 and the electro-active plate 4 can jointly provide acting force to the carrier 1 to maintain the suspended state, and at this time, the elastic element 3 may not be in the initial state, that is, the elastic element 3 is in the compressed state or the stretched state, and has a certain elastic potential energy. In case the electro-active plate 4 is deformed by applying current and bends along the side facing away from the base 5, the electro-active plate 4 drives the carrier 1 in a direction away from the base 5, at which time the resilient member 3 is compressed.

In the case where the electro-active plate 4 is deformed by being energized and bent along the side toward the base 5, there are two possible cases:

the electro-driving plate 4 drives the carrier 1 to move towards the direction close to the base 5, and meanwhile, the elastic element 3 is stretched, which is premised on that: when the carrier 1 is in a suspended state, the elastic part 3 is in an original length or stretching state;

the elastic elements 3 drive the carrier 1 to move closer to the base 5, which is the case when the elastic elements 3 are in a compressed state when the carrier 1 is in a suspended state.

The driving device in the embodiment comprises a carrier 1, a shell 2, an elastic piece 3, an electric drive sheet 4 and a base 5; the shell 2 and the base 5 are matched to form an accommodating cavity, and the elastic part 3, the carrier 1 and the electric drive sheet 4 are sequentially arranged in the accommodating cavity; the carrier 1 is movably connected with the shell 2 through the elastic part 3, and the carrier 1 is used for carrying a functional device; the first end of the electro-driving sheet 4 is connected with the base 5, and the second end of the electro-driving sheet 4 is connected with the carrier 1; wherein, when a voltage is applied to the electrodrive sheet 4, the electrodrive sheet 4 deforms and drives the carrier 1 to move. The structure of the driving device cancels a magnetoelectric structure, does not generate magnetic field interference on circuits and devices around the driving device, and purifies the working environment of the circuits and devices around the driving device.

As shown in fig. 1, the driving device further includes a fixing member 6, the fixing member 6 is located in the accommodating cavity, the electric driving sheet 4 is disposed between the fixing member 6 and the base 5, the fixing member 6 is electrically connected to a first surface of the electric driving sheet 4, a second surface of the electric driving sheet 4 is electrically connected to the base, and the first surface and the second surface are distributed oppositely.

The fixing member 6 is used to fix the electro-driver blade 4 to the base 5, and the fixing member 6 is electrically connected to the first side of the electro-driver blade 4, i.e. the fixing member 6 is also used to conduct current for the electro-driver blade 4. The fixing member 6 may be a metal member. The first surface of the electrodrive sheet 4 is electrically connected with the fixing piece 6, and the second surface of the electrodrive sheet 4 is electrically connected with the base 5, so that voltage can be applied to the electrodrive sheet 4 by applying voltage to the fixing piece 6 and the base 5, and the electrodrive sheet 4 is deformed to drive the carrier 1 to move.

Alternatively, as shown in fig. 9, the fixing member 6 is a frame structure with a through hole in the middle, and the frame structure is an octagonal structure, wherein four sides of the octagonal structure, which are arranged at intervals, are provided with protruding portions, and each protruding portion is provided with one first positioning hole 61.

As shown in fig. 2 to 4, 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 electrically connected to the second electrical connection portion of the fixing member 6 for conducting current to the fixing member 6. The first electrical connection portions 52 can be located at four corners of the base body 51, and the fixing members 6 can be respectively disposed at the four corners of the base body 51; alternatively, as shown in the fixing member 6 of fig. 9, in this case, the fixing member 6 is in a ring shape, and the second electrical connection portions of the fixing member 6 may be simultaneously disposed at four corners of the base body 51 to be electrically connected to the first electrical connection portions 52.

The first electrical connection portion 52 may be injection molded on the base body 51 using Insert Molding (I/M) technology.

Fig. 11 shows the positional relationship among the carrier 1, the electro-active plate 4, the base 5 and the fixing member 6, wherein the fixing member 6 adopts the fixing member structure shown in fig. 9.

Further, 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, and the first electrical connection surface 521 and the first pin 522 are electrically connected; the first electrical connection surface 521 is located in the first groove 511, the second electrical connection portion of the fixing element 6 is at least partially located in the first groove 511, and is electrically connected to the first pin 522 through the first electrical connection surface 521, and the first pin 522 is located on a side of the base body 51 away from the electro-driving sheet 4. The first electrical connection surface 521 is located in the first groove 511, and the second electrical connection portion of the fixing element 6 is at least partially located in the first groove 511, so that the first electrical connection surface 521 and the second electrical connection portion of the fixing element 6 are in good contact, and electrical conduction can be realized. Optionally, the notch of the first groove 511 is triangular, trapezoidal or pentagonal.

Further, the base 5 further includes a third electrical connection portion 53, the base body 51 is provided with a second recess 514 (e.g., an octagonal recess in the central area of fig. 2), the second recess 514 is a recess for the electric driving plate 4, and the second recess 514 has a carrying area 512; the third electrical connection portion 53 includes a second electrical connection surface 531 and a second pin 532 disposed in the carrier region 512, and 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 electrically connected to the second surface of the electro-driving plate 4.

When a voltage is applied to the two ends formed by the first pin 522 and the second pin 532, the first pin 522 is conducted with the first surface of the electro-driving plate 4 through the fixing member 6, and the second pin 532 is conducted with the second surface of the electro-driving plate 4 through the second electrical connection surface 531. Thus, the voltage can be applied to the electro-driver plate 4 by applying a voltage to the two ends of the first pin 522 and the second pin 532, so that the electro-driver plate 4 deforms and drives the carrier 1 to move.

The third electrical connection 53 may be injection molded on the base body 51 using I/M technology.

Fig. 10 shows the positional relationship among the carrier 1, the electro-active plate 4 and the base 5, wherein the second groove 514 has a plurality of carrying areas 512, and each carrying area 512 is covered with one electro-active plate 4.

Further, 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 and the first electrical connection portion 52 are arranged at an interval. Optionally, an electric driving plate 4 is disposed on the third electric connection surface 551, the third electric connection surface 551 can be electrically connected to the second electric connection surface 531, the third electric connection surface 551 is further electrically connected to the second surface of the electric driving plate 4, and the first electric connection portion 52 is electrically connected to the first surface of the electric driving plate 4. Thus, the voltage can be applied to the electro-driver plate 4 by applying a voltage to the two ends of the first pin 522 and the second pin 532, so that the electro-driver plate 4 deforms and drives the carrier 1 to move.

Further, the base 5 may be a square structural member, the number of the first electrical connection portions 52 is one, the number of the third electrical connection portions 53 is three, and the first electrical connection portions and the three third electrical connection portions 53 are respectively located in four corner regions of the base 5. One electro-driving sheet 4 may 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 its corresponding electro-driving sheet 4. Of course, in other embodiments of the present invention, the base 5 may be a circular structural member or an octagonal structural member, and the shape of the base 5 is not particularly limited by the present invention.

Further, as shown in fig. 4, a first through hole 515 is formed at the bottom of the second groove 514, the base body 51 is further provided with at least two first positioning posts 513, the at least two first positioning posts 513 are located outside the second groove 514, the first positioning posts 513 are distributed adjacent to the first electrical connection portion 52 or the third electrical connection portion 53, and the fixing member 6 is provided with a first positioning hole 61 adapted to the first positioning posts 513; 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 may be fixed by hot riveting or the like.

As shown in fig. 4, the at least two first positioning pillars 513 may be four, and the four first positioning pillars 513 are symmetrically distributed, for example, may be disposed at four corners of the base body 51. As shown in fig. 9, the fixing member 6 is provided with first positioning holes 61, and the number and the positions of the first positioning holes 61 are matched with the number and the positions of the first positioning posts 513.

Further, at least two first bosses are arranged at the bottom of the second groove 514, the at least two first bosses are distributed around the first through hole 515, and the first bosses are distributed in a central symmetry manner about the center of the first through hole 515. When the carrier 1 moves in the accommodating cavity, the at least two first bosses can have an anti-collision effect on the second groove 514 by the carrier 1. Specifically, the at least two first bosses include four first bosses 54, the four first bosses 54 are distributed around the first through hole 515, and the four first bosses 54 are distributed in central symmetry about the center of the first through hole 515; the first boss 54 is a rectangular structural member, and an arc-shaped notch matched with the first through hole 515 is formed in a first edge, close to the first through hole 515, of the first boss 54.

As shown in fig. 5 and 6, the carrier 1 includes a third surface 11 disposed facing the electric driving sheet 4, the third surface 11 is provided with a second positioning column 111, and the electric driving sheet 4 is provided with a second positioning hole 41 adapted to the second positioning column 111; the electro-driving plate 4 is connected with the second positioning column 111 through the second positioning hole 41, so as to realize the connection between the electro-driving plate 4 and the carrier 1. The second positioning posts 111 can be plastic posts, and the second positioning holes 41 can be blind holes or through holes. The second positioning posts 111 are connected to the second positioning holes 41 by hot riveting or dispensing.

As shown in fig. 4 and 5, 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-driving sheet 4, so that when the carrier 1 moves towards the base 5, the carrier 1 is prevented from excessively pressing the electro-driving sheet 4, and the electro-driving sheet 4 is prevented from being damaged.

Alternatively, as shown in fig. 6, the electro-driving plate 4 includes a main structure and a terminal formed by extending the main structure, the terminal has a width larger than that of the main structure, the terminal may specifically have a trapezoidal structure, a triangular structure or a rectangular structure, and the main structure may have a rectangular structure. The second positioning hole 41 is located on the main body structure, and specifically may be located at an end of the main body structure far away from the terminal. The carrier 1 is in contact with a part of the body structure and the terminals project beyond the edge of the carrier 1.

As shown in fig. 7, the carrier 1 further comprises a fourth surface 12 facing the elastic element 3, and the fourth surface 12 is provided with a third protrusion 121 to prevent the carrier 1 from hitting or pressing against the housing 2 when moving towards the housing 2.

As shown in fig. 7, the carrier 1 is provided with a through hole, and the edge of the through hole is provided with a thread structure by which the carrier 1 can be connected with a functional device. Stepped platform structures are arranged at the positions of four corners of the carrier 1. Alternatively, the carrier may be an octagonal structure.

As shown in fig. 8, the elastic member 3 includes a bracket 31 and an elastic portion 32; the bracket 31 is fixedly arranged on one side of the housing 2 facing the carrier 1, and the elastic part 32 is connected with the carrier 1. The carrier 1 can be suspended in the accommodation cavity by means of elastic members. Alternatively, the elastic part 32 has an elastic wire wound part, for example, the elastic wire wound part may be provided at a corner position in the bracket 31. Both ends of the elastic winding portion are connected with the bracket 31, and the winding portions of the elastic winding portion are not intersected with each other, thereby forming a hollow area. In fig. 8, the bracket 31 includes four corner positions provided with four elastic wire winding portions, respectively.

As shown in fig. 7 and 8, the elastic portion 32 is provided with a second through hole, a plurality of first notches 321 are provided at an edge of the second through hole, and the plurality of first notches 321 are symmetrically distributed about a center of the second through hole; the carrier 1 includes a plurality of connecting protrusions 13, the number of the connecting protrusions 13 is the same as the number 321 of the first slits, and each connecting protrusion 13 is connected to the elastic portion 32 through one first slit 321. The connection protrusion 13 and the first notch 321 may be detachably connected, and may be clamped. Further, the portion of the carrier 1 contacting the edge of the second through hole may be fixed by glue to further fix the carrier 1 and the elastic portion 32.

As shown in fig. 12, the housing 2 includes at least two fourth bosses 21, and the fourth bosses 21 are used for carrying the bracket 31. In fig. 12, the housing 2 includes four fourth bosses 21 respectively disposed at four corner positions of the housing, the four fourth bosses 21 carry the brackets 31, and the fourth bosses 21 and the brackets 31 can be fixed by glue, and fig. 13 is a diagram illustrating a positional relationship between the elastic member 3 and the housing 2.

The housing 2 further comprises a grounding pin 22, and the pin 22 is used as a grounding terminal of the driving device to reduce static electricity generated during the operation of the driving device.

Fig. 14 is a view showing a positional relationship among the base 5, the carrier 1, and the elastic member 3. Fig. 15 is a schematic view of the structure shown in fig. 14 with the addition of the housing 2. Fig. 16 is a schematic cross-sectional structural view of the driving device provided in this embodiment.

Further, the electric drive sheet 4 is an ion conduction drive sheet, the ion conduction drive 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, and a polymer electrolyte is provided in the ion exchange resin layer.

Specifically, the electro-driving plate 4 may be made of ion-exchange polymer metal composite (IPMC). The IPMC material is a novel electrically-actuated functional material, and is formed by using an ion-exchange resin layer (such as fluorocarbon polymer) as a substrate and plating a noble metal (such as platinum, silver, etc.) on the surface of the substrate to form electrode layers, i.e., a first electrode layer and a second electrode layer, as shown in fig. 17, where reference numerals a and B in fig. 17 are respectively the first electrode layer and the second electrode layer. The ion exchange resin layer includes a polymer electrolyte containing cations and anions, and the positions and amounts of the cations and anions in fig. 17 are merely schematic and do not represent actual conditions.

As shown in fig. 18 and 19, when a voltage is applied to the IPMC in the thickness direction, hydrated cations in the polymer electrolyte move to the cathode side, causing a difference in swelling of the anode and cathode surfaces of the IPMC, thereby deforming and bending toward the anode surface, so that the degree of bending of the IPMC can be controlled by controlling the energization voltage or current of the IPMC, so that the IPMC is displaced in the transverse direction.

The IPMC material is a novel driving material and has the advantages of light driving mass, large displacement, low driving voltage and the like. The driving device has obvious advantages of adopting IPMC, for example, the IPMC is a non-magnetic material and cannot generate magnetic interference; the displacement and velocity generated by IPMC deformation decrease in proportion to the thickness of IPMC, and the force generated by IPMC deformation increases in proportion to the cube of the thickness of IPMC. Therefore, the thickness of the IPMC can be set according to actual conditions to achieve the desired displacement, velocity and force generated by IPMC deformation.

Further, in the case that the voltage applied to the ion-conducting driving plate is a first voltage, the ion-conducting driving plate drives the carrier 1 to move along a first direction; in the case where the voltage applied to the ion-conducting driver plate is a second voltage, the ion-conducting driver plate drives the carrier 1 to move in a second direction; the first voltage and the second voltage have opposite polarities, and the first direction and the second direction are opposite directions. The ion-conducting driver plate may be caused to drive the carrier 1 in either the first or second direction by applying voltages of opposite polarity to the ion-conducting driver plate. The first direction may be a direction in which the carrier 1 moves toward the housing 2, and the second direction may be a direction in which the carrier 1 moves away from the housing 2; the first direction may be a direction in which the carrier 1 moves away from the housing 2, and the second direction may be a direction in which the carrier 1 moves toward the housing 2.

Further, in the case where the voltage applied to the ion-conducting driving plate is a first voltage, the ion-conducting driving plate drives the carrier 1 to move a first distance in a first direction; in the case where the voltage applied to the ion-conducting driver plate is a third voltage, the ion-conducting driver plate 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, 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. When the carrier 1 is required 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 driving sheet; when the carrier 1 is required to move a small distance, the carrier 1 may be driven to move a small distance by applying a large voltage to the ion-conducting driver plate. There is a correspondence between the magnitude of the voltage applied to the ion-conducting driver plate and the distance the carrier 1 is moved, and in the case of determining the distance the carrier 1 needs to be moved, the magnitude of the voltage applied to the ion-conducting driver plate can be determined from this correspondence.

Further, in the case where the voltage applied to the ion-conducting driving plate is a first voltage, the ion-conducting driving plate drives the carrier 1 to move in the first direction at a first rate; in the event that the voltage applied to the ion conducting driver plate is a third voltage, the ion conducting driver plate drives movement of the carrier 1 in a first direction at a second rate; wherein the first voltage and the third voltage have the same polarity, 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. When the carrier 1 is required to move at a large speed, the carrier 1 can be driven to move at a large speed by applying a large voltage to the ion conduction driving sheet; when a small rate of movement of the carrier 1 is required, the carrier 1 can be driven to move at a small rate by applying a small voltage to the ion-conducting driver plate. There is a correspondence between the magnitude of the voltage applied to the ion-conducting driver plate and the rate of movement of the carrier 1, from which correspondence the magnitude of the voltage applied to the ion-conducting driver plate can be determined, in the case of determining the rate at which the carrier 1 needs to be moved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A driving device is characterized by comprising a carrier, a shell, an elastic piece, an electric drive sheet and a base;

when voltage is applied to the electro-driving sheet, the electro-driving sheet deforms and drives the carrier to move, the carrier comprises a third surface facing the electro-driving sheet, a second positioning column is arranged on the third surface, and a second positioning hole matched with the second positioning column is formed in the electro-driving sheet;

the electric drive sheet is connected with the second positioning column through the second positioning hole, the third surface is provided with a second boss, and the base further comprises a first boss opposite to the second boss;

the device comprises a first boss, a second boss and a fixing piece, wherein the sum of the first height of the first boss and the second height of the second boss is larger than or equal to the thickness of an electric drive sheet, the fixing piece is located in an accommodating cavity, the electric drive sheet is arranged between the fixing piece and a base, the fixing piece is electrically connected with a first surface of the electric drive sheet, a second surface of the electric drive sheet is electrically connected with the base, the first surface and the second surface are distributed oppositely, the electric drive sheet comprises a main body structure and a terminal formed by extending according to the main body structure, the width of the terminal is larger than that of the main body structure, the terminal protrudes out of the edge of a carrier, a second positioning hole is located at one end, far away from the terminal, of the main body structure, and the fixing piece is arranged on the terminal in a pressing mode so that the electric drive sheet is arranged between the fixing piece and the base.

2. The driving device as claimed in claim 1, wherein 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.

3. The driving device as claimed in claim 2, wherein the base body further defines a first recess;

4. The driving device as claimed in claim 2, wherein the base further comprises a third electrical connection portion, the base body defines a second recess, and the second recess has a bearing area;

the second pin is positioned outside the second groove, and the second electric connection surface is electrically connected with the second surface of the electric drive sheet.

5. The drive of claim 4, wherein the base body is further provided with a fourth electrical connection, the fourth electrical connection comprising a third electrical connection face, the third electrical connection face being spaced from the first electrical connection face.

6. The driving device as claimed in claim 5, wherein the base is a square structural member, the number of the first electrical connection portions is one, the number of the third electrical connection portions is three, and the first electrical connection portions and the three third electrical connection portions are respectively located at four corner regions of the base.

7. The driving device according to claim 4, wherein a first through hole is formed in a bottom of the second groove, the base body is further provided with at least two first positioning posts, the at least two first positioning posts are located outside the second groove, the first positioning posts are distributed adjacent to the first electrical connection portion or the third electrical connection portion, and the fixing member is provided with a first positioning hole matched with the first positioning posts;

8. The driving device as claimed in claim 7, wherein 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 are distributed with central symmetry about the center of the first through hole.

9. The driving device as claimed in claim 8, wherein the at least two first bosses comprise four first bosses, the four first bosses are distributed around the first through hole, and the four first bosses are distributed in a central symmetry manner about a center of the first through hole;

10. The drive of claim 1, wherein the carrier further comprises a fourth surface facing the resilient member, the fourth surface being provided with a third boss.

11. The drive device according to claim 1, wherein the elastic member includes a bracket and an elastic portion;

12. The driving device as claimed in claim 11, wherein the elastic portion defines a second through hole, and a plurality of first slits are defined in an edge of the second through hole, and the plurality of first slits are symmetrically distributed about a center of the second through hole;

13. The driving device according to claim 1, wherein the electrokinetic driving sheet is an ion conductive driving sheet comprising an ion exchange resin layer and a first electrode layer and a second electrode layer respectively disposed on opposite surfaces of the ion exchange resin layer, and wherein the ion exchange resin layer has a polymer electrolyte therein.

14. The drive of claim 13, wherein the ion-conducting driver plate drives the carrier to move in a first direction when the voltage applied to the ion-conducting driver plate is a first voltage;

the ion-conducting driving plate drives the carrier to move in a second direction when the voltage applied to the ion-conducting driving plate is a second voltage;

15. The drive of claim 13, wherein the ion-conducting driver plate drives the carrier in a first direction a first distance in the event that the voltage applied to the ion-conducting driver plate is a first voltage;

the ion-conducting driver plate drives the carrier to move a second distance in the first direction when the voltage applied to the ion-conducting driver plate is a third voltage;

16. The drive of claim 13, wherein the ionically conductive driver plate drives the carrier in a first direction at a first rate in the event that the voltage applied to the ionically conductive driver plate is a first voltage;

the ion conducting driver plate driving the carrier in a first direction at a second rate in the event that the voltage applied to the ion conducting driver plate is a third voltage;

17. An electronic device characterized by comprising the drive apparatus of any one of claims 1-16.