CN204013281U - Driver, optics intelligence camera lens and electronic product - Google Patents

Driver, optics intelligence camera lens and electronic product Download PDF

Info

Publication number
CN204013281U
CN204013281U CN201420425075.XU CN201420425075U CN204013281U CN 204013281 U CN204013281 U CN 204013281U CN 201420425075 U CN201420425075 U CN 201420425075U CN 204013281 U CN204013281 U CN 204013281U
Authority
CN
China
Prior art keywords
boss
driver
piezoelectric ceramic
moving body
ceramic piece
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN201420425075.XU
Other languages
Chinese (zh)
Inventor
季叶
崔宏超
褚祥诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Pai He Science And Technology Co Ltd
Original Assignee
Beijing Pai He Science And Technology Co Ltd
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 Beijing Pai He Science And Technology Co Ltd filed Critical Beijing Pai He Science And Technology Co Ltd
Priority to CN201420425075.XU priority Critical patent/CN204013281U/en
Application granted granted Critical
Publication of CN204013281U publication Critical patent/CN204013281U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

The utility model discloses a kind of driver, optics intelligence camera lens and electronic product, belong to Drive technology field, described driver comprises boss-shaped stator, described boss-shaped stator comprises substrate and is positioned at the boss on described substrate, the surface of described substrate is provided with the exciting element for the axial continuous rotation of described boss is swung, and on described boss, is equipped with moving body.The utility model does not need the consistency of considering that multi-disc piezoelectric ceramic piece is bonding, and the structure of itself more easily produces the refracted traveling wave of ideal stability, thereby makes driver stable output; Secondly, the required parts of the utility model can be obtained by conventional route or method, and manufacture craft is comparatively simple; In addition, realize the required element of this technology less, and boss and substrate can adjust size along footpath degree and thickness direction, be easy to miniaturization.

Description

Driver, optics intelligence camera lens and electronic product
Technical field
The utility model relates to field of drivers, particularly a kind of driver, comprise this driver optics intelligence camera lens, comprise the electronic product of this optics intelligence camera lens.
Background technology
Along with the reach of science, optical focusing, accurate drive and micro-system field in the urgent need to miniature linear actuator.Original electromagnetic driver efficiency under miniature scale sharply reduces, and manufacture difficulty is large.And piezoelectric actuator is a kind of novel driver, utilize the inverse piezoelectric effect of piezoelectric ceramic, change vibration by a small margin into required motion by structural design, and have simple in structure, be easy to microminiaturization, the advantage such as cut off self-lock has broad application prospects, especially in the fields such as mobile phone optical focus, the built-in video lens of notebook computer, industrial special micro-lens, medical optical focusing in above-mentioned field.
As Fig. 1 a) as shown in, be the U.S. 6,940, the disclosed a kind of threaded rod ultrasound electric machine of 209B2 patent documentation.The profile of whole ultrasound electric machine is to present slender rod shaped structure along its output shaft direction, and it comprises that one sticks on four sides of multiaspect body 1 with 2, four rectangular piezoelectric ceramic sheets 31~34 of multiaspect body 1, one threaded rod of centre bore.Piezoelectric ceramic piece 31~34 is applied to specific voltage signal and can excite multiaspect body 1 to produce refracted traveling wave, rotate also rectilinear motion vertically thereby promote threaded rod 2.Fig. 1 is b) schematic diagram of this ultrasound electric machine operation principle.Before 1 distortion of multiaspect body, being 100 states, is 200 case of bendings after distortion.Voltage signal in the time exciting multiaspect body 1 to produce flexural deformation, can be on multiaspect body 12: 11 and 12 place form node, power up rear multiaspect body 1 vibration amplitude and be 0 or close to 0 part.Because this ultrasound electric machine is to utilize the microscopic vibration of multiaspect body 1 to realize the rectilinear motion of threaded rod 2, for reducing constraint and the restriction to this vibration of other structure or extraneous factor, generally in production, for not affecting self vibrating of multiaspect body 1, can be in node 11 and 12 places welding as the electric lead-out wire 41~44 of Fig. 1 as shown in a), or fix this ultrasound electric machine at node 11 or 12 places.This patent documentation has proposed a kind of straight-line Piezoelectric Driving scheme that effectively realizes, and is hopeful for micromechanics optical focusing field.
This patent in actual applications, due to the restriction of its structure and operation principle, there is following weak point: after multi-disc piezoelectric ceramic 31~34 is bonding, be difficult to ensure that the consistency of piezoelectric ceramic piece electric property and mechanical performance and the structure of ultrasound electric machine multiaspect body 1 are nonaxisymmetric structures, be unsuitable for and produce desirable and stable refracted traveling wave, thereby cause output unstable, produce continuous flexural vibrations for realizing multiaspect body 1 in addition, need to be at bonding at least four piezoelectric ceramic 31~34 of the lateral surface of multiaspect body 1, its agent structure processing technology complexity, technique for sticking complexity, cause driver complex manufacturing technology, finally, this ultrasound electric machine monnolithic case is to present slender rod shaped structure along its output shaft direction, the radial dimension of multiaspect body 1 can shrink, but axial direction is due to the restriction of operation principle, must on multiaspect body 1, form two place's nodes 11 and 12, the length-width ratio of piezoelectric ceramic piece need to be more than 3 times, therefore the size of multiaspect body 1 length direction can not be too short, product is difficult for miniaturization.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of stable output, and manufacture craft is simple, is easy to driver, optics intelligence camera lens and the electronic product of miniaturization.
For solving the problems of the technologies described above, the utility model provides technical scheme as follows:
On the one hand, a kind of driver is provided, comprises boss-shaped stator, described boss-shaped stator comprises substrate and is positioned at the boss on described substrate, the surface of described substrate is provided with the exciting element for the axial continuous rotation of described boss is swung, and on described boss, is equipped with moving body.
Further, described exciting element is piezoelectric ceramic piece, magnetostrictive material, electrostriction material, artificial-muscle or marmem.
Further, described exciting element is the ring piezoelectric potsherd of through-thickness polarization, and the surface electrode of described piezoelectric ceramic piece is divided between four fan sections of mutually insulated.
Further, the wherein polarised direction between two adjacent sectors of described piezoelectric ceramic piece is consistent and contrary with the polarised direction between another two fan sections, simultaneously described piezoelectric ceramic piece wherein between two relative fan sections, apply first signal of telecommunication, between another two relative fan sections, apply second signal of telecommunication, described first signal of telecommunication is identical with the second signal of telecommunication voltage magnitude, frequency is identical, phase difference is 90 degree;
Or, polarised direction between four fan sections of described piezoelectric ceramic piece is all consistent, simultaneously described piezoelectric ceramic piece wherein between two relative fan sections, apply respectively positive and negative first signal of telecommunication, between another two relative fan sections, apply respectively positive and negative second signal of telecommunication, described first signal of telecommunication is identical with the second signal of telecommunication voltage magnitude, frequency is identical, phase difference is 90 degree.
Further, described piezoelectric ceramic piece is the single layer structure that adopts rolling mill practice or casting technique to obtain, or the sandwich construction that adopts lamination casting technique to make, and every layer thickness is 20 μ m-50 μ m, and the thickness of described piezoelectric ceramic piece is less than or equal to 100 μ m.
Further, described boss, moving body, exciting element have common central axis.
Further, described boss has internal thread, and described moving body has the external screw thread adapting; Or described boss has external screw thread, described moving body has the internal thread adapting;
Wherein said screw thread is trapezoidal, triangle, rectangle or zigzag.
Further, described exciting element is arranged on upper surface or the lower surface of described substrate, or is symmetricly set on upper surface and the lower surface of described substrate.
On the other hand, a kind of optics intelligence camera lens is provided, comprise top cover and base, between described top cover and base, be provided with above-mentioned driver, described boss and moving body are circular ring, the far-end of described moving body is provided with optical lens, is also provided with optical thin film imageing sensor on described substrate, and described optical thin film imageing sensor is connected with flexible printed circuit board.
Again on the one hand, a kind of optics intelligence camera lens is provided, comprise top cover and base, between described top cover and base, be provided with the above-mentioned driver of two covers, boss and the moving body of every cover driver are circular ring, the far-end of the moving body of every cover driver is provided with optical lens, on the substrate of every cover driver, be provided with optical thin film imageing sensor, optical thin film imageing sensor is all connected with flexible printed circuit board, and the optical axis of every cover driver is concentric, between two cover drivers, be provided with spacer ring.
Another aspect, provides a kind of electronic product, comprises above-mentioned optics intelligence camera lens.
The utlity model has following beneficial effect:
The utility model drives the substrate of boss-shaped stator by exciting element, make substrate drive boss to swing along axis continuous rotation, and then the continuous motion of boss drive moving body, compared with prior art, first, the utility model does not need the consistency of considering that multi-disc piezoelectric ceramic piece is bonding, and the structure of itself more easily produces the refracted traveling wave of ideal stability, thereby makes driver stable output; Secondly, the required parts of the utility model can be obtained by conventional route or method, and manufacture craft is comparatively simple; In addition, realize the required element of this technology less, and boss and substrate can adjust size along footpath degree and thickness direction, be easy to miniaturization.
Brief description of the drawings
Fig. 1 a is a kind of threaded rod ultrasound electric machine structural representation in prior art;
Fig. 1 b is a kind of threaded rod Driven by Ultrasonic Motors schematic diagram shown in Fig. 1 a;
Fig. 2 is the overall structure schematic diagram of driver of the present utility model;
Fig. 3 is piezoelectric ceramic piece polarization and add electrical schematic on driver shown in Fig. 2;
Fig. 4 is the mode of oscillation schematic diagram of driver of the present utility model;
The swing schematic diagram of boss when Fig. 5 is driver resonance of the present utility model;
Fig. 6 is the explosive view of a kind of structure of driver of the present utility model;
Fig. 7 is the explosive view of the another kind of structure of driver of the present utility model;
Fig. 8 is the explosive view of a kind of optics intelligence camera lens of the present utility model;
Fig. 9 is the overall structure schematic diagram of a kind of optics intelligence camera lens shown in Fig. 8;
Figure 10 is the explosive view of another kind of optics intelligence camera lens of the present utility model;
Figure 11 is the overall structure schematic diagram of the another kind of optics intelligence camera lens shown in Figure 10.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
On the one hand, the utility model provides a kind of driver, as shown in Figure 2, comprise boss-shaped stator 21, boss-shaped stator 21 comprises substrate 2 and is positioned at the boss 5 on substrate 2, the surface of substrate 2 is provided with the exciting element 1 for the axial continuous rotation of boss 5 is swung, and is equipped with moving body 3 on boss 5.
The utility model drives the substrate 2 of boss-shaped stator 21 by exciting element 1, make substrate 2 drive boss 5 to swing along axis continuous rotation, and then boss 5 drives the continuous motion of moving body 3, compared with prior art, first, the utility model does not need the consistency of considering that multi-disc piezoelectric ceramic piece is bonding, and the structure of itself more easily produces the refracted traveling wave of ideal stability, thereby makes driver stable output; Secondly, the required parts of the utility model can be obtained by conventional route or method, and manufacture craft is comparatively simple; In addition, realize the required element of this technology less, and boss and substrate can adjust size along footpath degree and thickness direction, be easy to miniaturization.
Because exciting element 1 role in the utility model is, when extrinsic motivated, produce deformation and activate, all can be used for making exciting element 1 as long as therefore possess the material that affected by extrinsic motivated and can produce deformation behavior.When actual fabrication, the material range of choice of exciting element 1 is very extensive, can be piezoelectric ceramic piece, magnetostrictive material, electrostriction material, artificial-muscle or marmem.
As a kind of improvement of the present utility model, as shown in Figure 3, exciting element 1 is the ring piezoelectric potsherd 7,7 ' of through-thickness polarization, piezoelectric ceramic piece 7,7 ' surface electrode are divided into 4a, 4a ' between four fan sections of mutually insulated, 4b, 4b ', 4c, 4c ', 4d, 4d '.Piezoelectric ceramic piece 7,7 ' is set to circular, preferred, piezoelectric ceramic piece 7,7 ' is set to the circular of entirety or surrounds circular fan-shapedly, therefore pastes easily with substrate 2, is easy to slimming, and and ic process compatibility, be applicable to batch production.
Concrete, the utility model can have following two kinds of polarization and power up mode:
Polarize and power up mode one:
As shown in mode in Fig. 31, between two adjacent sectors of piezoelectric ceramic piece 7 polarised direction of 4a, 4b consistent and with another two fan sections between the polarised direction of 4c, 4d contrary, simultaneously piezoelectric ceramic piece 7 wherein between two relative fan sections 4a, 4c apply first signal of telecommunication, between another two relative fan sections, 4b, 4d apply second signal of telecommunication, and first signal of telecommunication is identical with the second signal of telecommunication voltage magnitude, frequency is identical, phase difference is 90 degree;
In the time that 7a, 7c access the first signal of telecommunication Vsin, as shown in Figure 4, the surface of boss-shaped stator 21 produces the refracted traveling wave under B (1,1) mode, forms a pitch diameter 501 and a pitch circle 502, and the frequency of mode of oscillation is greater than 20kHz.Pitch diameter 501 and pitch circle 502 are that on stator surface, vibration is 0 or close to 0 point, and stator surface 21 direction of vibration of pitch diameter 501 and pitch circle 502 both sides are contrary or to be called vibration phase contrary, represent with "+", "-" symbol.Meanwhile, as shown in Figure 5, boss 5 is positioned at the center 0 of pitch diameter 501, the direction of vibration of the stator surface 21 of 0 both sides, center is contrary, i.e. "+" and "-", directly cause boss 5 to produce periodically and swing around pitch diameter 501, but boss 5 itself does not deform.In the time of 7b, 7d access the 2nd signal Vcos, can directly cause boss 5 to produce periodically and swing around pitch diameter 503.
Then, in the time that 7b, 7d access the second signal of telecommunication Vcos, as shown in Figure 4, the surface of platform shape stator 21 produces the refracted traveling wave under B (1,1) mode, forms a pitch diameter 503 and a pitch circle 504, and the frequency of mode of oscillation is greater than 20kHz.Pitch diameter 503 and pitch circle 504 are also that on stator surface, vibration is 0 or close to 0 point, and stator surface 21 direction of vibration of pitch diameter 503 and pitch circle 504 both sides are contrary or to be called vibration phase contrary, represent with "+", "-" symbol.Meanwhile, as shown in Figure 5, boss 5 is positioned at the center 0 of pitch diameter 503, and the direction of vibration of the stator surface 21 of 0 both sides, center is contrary, directly cause boss 5 to produce periodically and swing around pitch diameter 503, but boss 5 itself does not deform.
Because the same position of pitch circle 502 and 504 on the surface 21 of boss-shaped stator 2, and because surface electrical polar region 4a-4c, 4b-4d are spatially orthogonal, so pitch diameter 501 and 503 is spatially orthogonal.When lead-in wire 7a, 7b, 7c, 7d power up simultaneously, boss 5 can take center 0 as fixed point, swings around the circumferential continuous rotation of axis of boss 5 with certain pivot angle, and its effect as shown in Figure 5.
When work, boss 5 is except overall rigidity swing, there is not any distortion in self, end 53 movement locus of boss 5 are similar to yaw motion, above-mentioned motion directly causes producing friction motive force between internal thread 6a and external screw thread 6b, promotes moving body 3 rotations and realizes the rectilinear motion along central axis.Voltage signal Vsin and Vcos are exchanged, can realize the reverse rotation of moving body 3.
Compared with prior art, because boss-shaped stator 21 itself has certain physical dimension, and the performance of driver is directly related with the Oscillation Amplitude of boss 5 ends, therefore the output performance such as displacement, speed that boss-shaped stator 21 has improved driver is set, and its optical focus response time is in sub-millisecond scope.
Polarize and power up mode two:
As shown in mode in Fig. 32, the interval polarised direction of four fan-shaped 4a ', 4b ' of piezoelectric ceramic piece 7 ', 4c ', 4d ' is all consistent, simultaneously piezoelectric ceramic piece 7 ' wherein between two relative fan sections 4a ', 4c ' apply respectively positive and negative first signal of telecommunication, between another two relative fan sections, 4b ', 4d ' apply respectively positive and negative second signal of telecommunication, and first signal of telecommunication is identical with the second signal of telecommunication voltage magnitude, frequency is identical, phase difference is 90 degree.
Same, polarize and power up by shown in mode 2, its drive principle is similar with mode 1 to the course of work, can be drawn by mode 1, repeats no more herein.
It should be noted that, above-mentioned two kinds of modes only show two kinds of preferred polarization and power up mode, and those of ordinary skill in the art can take as required other feasible polarization and power up mode, repeats no more herein.
In the utility model, piezoelectric ceramic piece 7,7 ' is the single layer structure that preferably adopts rolling mill practice or casting technique to obtain, or the sandwich construction that adopts lamination casting technique to make, it is 20 μ m-50 μ m that every layer thickness is preferably, the thickness of piezoelectric ceramic piece is less than or equal to 100 μ m.
As a kind of improvement of the present utility model, boss 5, moving body 3, piezoelectric ceramic piece 7,7 ' are preferably designed for the structure with common central axis, piezoelectric ceramic piece 7,7 ' is adding under electro ultrafiltration, can produce periodic wobble, and then drive boss-shaped stator 21 to produce the continuous rotation swing around axis, thereby described boss-shaped stator 21 produces continuous motive force, promotes moving body 3 and carries out helical rotation with respect to boss-shaped stator 21, realize axial linear movement, can realize fast driving.
As another kind of improvement of the present utility model, as shown in Figure 6, boss 5 has internal thread 6a, and corresponding moving body 3 has the external screw thread 6b adapting; Or as shown in Figure 7, boss 5 has external screw thread 6a, moving body 3 has the internal thread 6b adapting.When boss 5 produces the rotary oscillation around axis under exciting element 1 effect, thereby on the internal thread of boss 5, on 6a, form continuous actuating force, promote moving body 3 and carry out helical rotation with respect to boss 5, this many screw buckle engagements drive, bearing capacity is uniformly distributed, and stability and reliability are relatively good.In addition, helicitic texture 6a, 6b can adopt various structures form, preferably, screw thread 6a, 6b are trapezoidal, triangle, rectangle or zigzag, and preferably its lead angle and pitch equate, have certain coupling mechanism force not powering up helicitic texture in situation, and screw thread initial position can hand adjustment also can electronics adjustment, it is convenient to facilitate; As the core component of precise jiggle control technology, there is not the structure problem such as tremble that do not power up in the utility model.
When production and processing, the layout of exciting element 1 is comparatively flexible, can freely adjust as required, and preferred, exciting element 1 is arranged on upper surface or the lower surface of substrate 2, or is symmetricly set on upper surface and the lower surface of substrate 2.
On the other hand, the utility model provides a kind of optics intelligence camera lens, as shown in Figure 8, comprise top cover a1 and base a2, between top cover a1 and base a2, be provided with above-mentioned driver, the far-end of moving body 3 is provided with optical lens 8, is also provided with optical thin film imageing sensor on substrate 2, optical thin film imageing sensor is connected with flexible printed circuit board b, and Fig. 9 is its overall diagram assembling.In Fig. 8, moving body 3 is preferably set to hollow structure, and optical lens 8 is arranged on moving body 3 inside, when work, maintains static between the two.When use, optical thin film imageing sensor is arranged on the position between soft electric connecting sheet FPCB b and base a2, and just in time the below of the internal thread 6a in boss-shaped stator 2, receives the image information that optical lens 8 transmissions are come.Above overall structure is embedded among top cover a1 and top cover a2.
Compared with prior art, the commercial camera lens of different size is limited on the impact of the utility model structural design.This structural design is flexible, and a structure can drive different size camera lens, also can be according to the nonstandard microminiature camera lens of user's demand motive, and this is that other products does not reach.And this structural detail quantity is few, anti-drop very competent, focusing speed is fast, is better than having the amasthenic lens design of piezo type both at home and abroad.
Again on the one hand, the utility model provides a kind of optics intelligence camera lens, as shown in figure 10, comprise top cover a1 and base a2, be provided with above-mentioned driver between top cover and base, the far-end of the moving body 3 of every cover driver is provided with optical lens 8, on the substrate 2 of every cover driver, be provided with optical thin film imageing sensor, optical thin film imageing sensor is all connected with flexible printed circuit board, and the optical axis of every cover driver is concentric, between two cover drivers, is provided with spacer ring 400.Figure 11 is its overall diagram assembling.Preferably, as shown in figure 10, soft electric connecting sheet b1, piezoelectric ceramic piece 101, boss-shaped stator 201, moving body 301 and optical lens 801, form structure A.Soft electric connecting sheet b2, piezoelectric ceramic piece 102, boss-shaped stator 202, moving body 302 and optical lens 802, form structure B.Moving body 302 in structure B and optical lens 802, be built in boss-shaped stator 201 in structure A and the inside of moving body 301.Be the inside that the part-structure of structure B is embedded in structure A, make optical system compact overall structure, size is little.This optical system has focusing and two kinds of functions of zoom, that at present domestic and international structure the most simply focuses on and the simultaneously realizable optical system of zoom function, and anti-drop ability is strong, focusing and zoom rate are fast, are better than having focusing and the zoom lens design of piezo type both at home and abroad.
Compared with prior art, the utility model is maximum 7~8 parts including camera lens, optical sensor etc., 3~4 parts of driver itself, and compact conformation, cost is lower than the optical mode set product of similar employing piezoelectric ceramic.
Another aspect, the utility model also provides a kind of electronic product, comprises above-mentioned any optics intelligence camera lens.Because structure is described above, repeat no more herein.
In sum, the utility model manufacturing process is simple, is applicable to suitability for industrialized production, compared with the prior art, is easy to microminiaturization, optical focusing, accurate drive and micro-system field tool is wide an application prospect.
The beneficial effects of the utility model are as follows:
1, compared with prior art, first, the utility model does not need the consistency of considering that multi-disc piezoelectric ceramic piece is bonding, and the structure of itself more easily produces the refracted traveling wave of ideal stability, thereby makes driver stable output; Secondly, the required parts of the utility model can be obtained by conventional route or method, and manufacture craft is comparatively simple; In addition, realize the required element of this technology less, and boss and substrate can adjust size along footpath degree and thickness direction, be easy to miniaturization.
2, the utility model is anti-drop very competent, and sample has reached TINY RA POT ASSY product and fall the highest ranking of standard test; This is the incomparable type of other similar piezoelectricity product, in addition, after tested, the utility model characterisitic parameter excellence: the response time is less than 1ms, resolution 1 μ m, range exceedes the half of reach, for example: 5mm screw thread movement travel approaches 3mm.。
3, the thickness of ring-type piezoelectric ceramic piece of the present utility model can be controlled in 100 microns, the thickness of described boss-shaped stator can be controlled in 5mm, utilize the monnolithic case size of the prepared focusing of this technology camera lens to can be controlled in 5 × 5 × 2mm, prepared focusing and zoom can be controlled in 5 × 5 × 5mm by the monnolithic case size of camera lens; Utilize focusing prepared by this utility model or the zoom lens thickness direction can thin type, the thickness of optical focus camera lens is easy to be controlled at below 3mm, if pitch of thread 0.1mm, nonstandard Lens are further microminiaturized, the thickness of optical focus camera lens can reach below 1mm, and this is to adopt thickness minimum in published piezoelectric ceramic optical focus scheme.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (11)

1. a driver, it is characterized in that, comprise boss-shaped stator, described boss-shaped stator comprises substrate and is positioned at the boss on described substrate, the surface of described substrate is provided with the exciting element for the axial continuous rotation of described boss is swung, and on described boss, is equipped with moving body.
2. driver according to claim 1, is characterized in that, described exciting element is piezoelectric ceramic piece, magnetostrictive material, electrostriction material, artificial-muscle or marmem.
3. driver according to claim 2, is characterized in that, described exciting element is the ring piezoelectric potsherd of through-thickness polarization, and the surface electrode of described piezoelectric ceramic piece is divided between four fan sections of mutually insulated.
4. driver according to claim 3, it is characterized in that, the wherein polarised direction between two adjacent sectors of described piezoelectric ceramic piece is consistent and contrary with the polarised direction between another two fan sections, simultaneously described piezoelectric ceramic piece wherein between two relative fan sections, apply first signal of telecommunication, between another two relative fan sections, apply second signal of telecommunication, described first signal of telecommunication is identical with the second signal of telecommunication voltage magnitude, frequency is identical, phase difference is 90 degree;
Or, polarised direction between four fan sections of described piezoelectric ceramic piece is all consistent, simultaneously described piezoelectric ceramic piece wherein between two relative fan sections, apply respectively positive and negative first signal of telecommunication, between another two relative fan sections, apply respectively positive and negative second signal of telecommunication, described first signal of telecommunication is identical with the second signal of telecommunication voltage magnitude, frequency is identical, phase difference is 90 degree.
5. driver according to claim 3, it is characterized in that, described piezoelectric ceramic piece is the single layer structure that adopts rolling mill practice or casting technique to obtain, or the sandwich construction that adopts lamination casting technique to make, every layer thickness is 20 μ m-50 μ m, and the thickness of described piezoelectric ceramic piece is less than or equal to 100 μ m.
6. driver according to claim 3, is characterized in that, described boss, moving body, exciting element have common central axis.
7. driver according to claim 1, is characterized in that, described boss has internal thread, and described moving body has the external screw thread adapting; Or described boss has external screw thread, described moving body has the internal thread adapting;
Wherein said screw thread is trapezoidal, triangle, rectangle or zigzag.
8. driver according to claim 1, is characterized in that, described exciting element is arranged on upper surface or the lower surface of described substrate, or is symmetricly set on upper surface and the lower surface of described substrate.
9. an optics intelligence camera lens, comprise top cover and base, it is characterized in that, between described top cover and base, be provided with the driver described in arbitrary claim in claim 1 to 8, described boss and moving body are circular ring, the far-end of described moving body is provided with optical lens, is also provided with optical thin film imageing sensor on described substrate, and described optical thin film imageing sensor is connected with flexible printed circuit board.
10. an optics intelligence camera lens, comprise top cover and base, it is characterized in that, between described top cover and base, be provided with the driver described in arbitrary claim in two cover claims 1 to 8, boss and the moving body of every cover driver are circular ring, the far-end of the moving body of every cover driver is provided with optical lens, on the substrate of every cover driver, be provided with optical thin film imageing sensor, optical thin film imageing sensor is all connected with flexible printed circuit board, and the optical axis of every cover driver is concentric, between two cover drivers, be provided with spacer ring.
11. 1 kinds of electronic products, is characterized in that, comprise the optics intelligence camera lens described in claim 9 or 10.
CN201420425075.XU 2014-07-30 2014-07-30 Driver, optics intelligence camera lens and electronic product Expired - Lifetime CN204013281U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420425075.XU CN204013281U (en) 2014-07-30 2014-07-30 Driver, optics intelligence camera lens and electronic product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420425075.XU CN204013281U (en) 2014-07-30 2014-07-30 Driver, optics intelligence camera lens and electronic product

Publications (1)

Publication Number Publication Date
CN204013281U true CN204013281U (en) 2014-12-10

Family

ID=52053215

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420425075.XU Expired - Lifetime CN204013281U (en) 2014-07-30 2014-07-30 Driver, optics intelligence camera lens and electronic product

Country Status (1)

Country Link
CN (1) CN204013281U (en)

Similar Documents

Publication Publication Date Title
Dong Review on piezoelectric, ultrasonic, and magnetoelectric actuators
CN102097971A (en) Piezoelectric ceramic driver for optical focusing and zooming of mobile phone
JP2017502356A (en) Zoom lens driving device and zoom lens provided with the same
JP6155460B2 (en) Drive member, linear drive device, camera device, and electronic device
CN101563839B (en) A linear driver
CN107306097B (en) Using the micro machine of multi-layer annular piezoelectric ceramics
JP2005110488A (en) Apparatus and method for driving ultrasonic actuator
CN102005965B (en) Ultrasonic motor driven by single-phase power supply
EP2270893B1 (en) Ultrasonic motor
Shen et al. Design and fabrication of a high-power eyeball-like microactuator using a symmetric piezoelectric pusher element
Ci et al. A square-plate piezoelectric linear motor operating in two orthogonal and isomorphic face-diagonal-bending modes
CN204013281U (en) Driver, optics intelligence camera lens and electronic product
CN117008282A (en) Screw-type ultrasonic driving zoom lens and camera
JP2006509490A (en) Electroactive actuator
CN102118118B (en) Linear type ultrasonic micromotor
Bansevicius et al. Multi-degree-of-freedom ultrasonic motors for mass-consumer devices
KR100974440B1 (en) Vibrator for ultrasonic motor
JP2010259193A (en) Drive device and robot
CN101291122B (en) Linear piezoelectric actuator with double-driving feet
Zhou et al. Integrated lens auto-focus system driven by a nut-type ultrosonic motor (USM)
KR101124807B1 (en) Piezoelectric Ultrasonic Motor
CN114244181B (en) High-power-density piezoelectric driver and piezoelectric motor
JP5216822B2 (en) Ultrasonic motor using laminated piezoelectric vibrator and electronic device using the same
CN219536760U (en) Laminated piezoelectric vibrator
JP5305380B2 (en) Actuator, positioning device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Ji Ye

Inventor after: Cui Hongchao

Inventor before: Ji Ye

Inventor before: Cui Hongchao

Inventor before: Chu Xiangcheng

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: JI YE CUI HONGCHAO CHU XIANGCHENG TO: JI YE CUI HONGCHAO

CX01 Expiry of patent term

Granted publication date: 20141210

CX01 Expiry of patent term