CN209201203U - The stabilization actuator of micro-optical stabilization drive motor - Google Patents
The stabilization actuator of micro-optical stabilization drive motor Download PDFInfo
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- CN209201203U CN209201203U CN201821408518.9U CN201821408518U CN209201203U CN 209201203 U CN209201203 U CN 209201203U CN 201821408518 U CN201821408518 U CN 201821408518U CN 209201203 U CN209201203 U CN 209201203U
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- 230000006641 stabilisation Effects 0.000 title claims abstract description 34
- 238000011105 stabilization Methods 0.000 title claims abstract description 34
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 19
- 230000011664 signaling Effects 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model relates to the stabilization actuator of micro-optical stabilization drive motor, which has substrate, fixed plate, movable plate and the memory alloy wire for being connected and fixed plate and movable plate；Movable plate activity is erected in fixed plate, and fixed plate is fixed on substrate, and movable plate has spring arm, and with respect under movable plate, curved fitting is fixed in fixed plate for the outer end of spring arm, and the outer end of spring arm is equipped with more than two signaling interfaces；One or more spring bearings are arranged between movable plate and fixed plate, move movable plate can with opposing fixed plate under the constraint of spring arm；Memory alloy wire fixing clamp is diagonally equipped on movable plate and fixed plate respectively, clamps the end of memory alloy wire respectively with this.Automatic Focus voice coil motor is driven to move on vertical optical axis direction using memory alloy wire, and effectively solving the problems, such as that the fixed part of minisize memory alloy stabilization actuator is connected to the multi-line of movable part, multi signal, structure is extremely compact and solid and reliable.
Description
Technical field
The utility model relates to camera technical fields, more particularly, to the micro-optical stabilization with optics debugging functions
The stabilization actuator of drive motor.
Background technique
Miniature automatic focusing camera is widely used in the production such as mobile phone, automobile, unmanned aerial vehicle, safety monitoring, smart home
Among product.Common miniature automatic focusing camera mould group is moved down in the direction of the optical axis by a miniature voice coil motor driving camera lens
It is dynamic, it is mobile by control chip drives voice coil motor when taking pictures, to realize automatic focusing function.When taking pictures or imaging, camera lens
Shake or other reasons of the meeting because of people are not able to maintain absolutely steady, generation certain deviation, at this time the focusing of camera and light-inletting quantity
It will be affected, and then influence the quality that camera obtains image.General this deflection lens occur in the side of vertical optical axis
Upwards, automatic Focus voice coil motor can only drive camera lens to move in the direction of the optical axis, therefore can not solve such deflection lens
The problem of causing.Increase an optical anti-vibration actuator on the basis of automatic Focus voice coil motor, drives camera lens in vertical light
It is moved in the both direction of axis, the above-mentioned deflection of camera lens can be compensated, camera is helped to obtain better image quality, it is this kind of micro-
Type motor of camera is referred to as micro-optical stabilization motor of camera.
The micro-optical stabilization motor of camera of real meaning is a closed-loop control system, detects camera lens by gyroscope
Jitter parameter feeds back to camera module control chip, and the positional information calculation that the latter provides according to lens position sensor goes out to mend
Positive angle or displacement simultaneously issues order-driven stabilization actuator and reaches designated position, to make corrections what camera lens was generated by shake
Displacement deflection makes to take pictures or image to obtain better image quality.
In the prior art, with driving camera lens in optical axis direction it is mobile, can also be in the both direction of vertical optical axis
Using same method, i.e., realized using miniature voice coil motor.Common miniature voice coil motor is by hot-wire coil in magnetic field
It is mobile to generate long-range navigation magnetic drive camera lens；And to realize optical anti-vibration, it needs to drive camera lens at least two directions, this meaning
Need to arrange multiple coils, can to it is integrally-built micromation bring certain challenge.For this purpose, being carried out using voice coil motor principle
Multiple coils are generally integrated on one piece of circuit board by the micro-actuator of optical anti-vibration, referred to as FP coil, solve optics with this
The dimensional problem of stabilization actuator.But miniature voice coil motor optical anti-vibration actuator and the miniature voice coil motor focused automatically
The two is separation, and camera lens is often mounted in the miniature voice coil motor focused automatically, to make camera lens in vertical optical axis direction
Upper movement, that is, move camera lens with the miniature voice coil motor focused automatically.Therefore, this kind of micro-optical stabilization camera shooting
Head mould group assembly technology is more difficult, also reduces the structural reliability of entire micro motor.
Summary of the invention
The purpose of this utility model is to provide a kind of stabilization actuators of micro-optical stabilization drive motor, using memory
Alloy wire drives the automatic Focus voice coil motor to move on vertical optical axis direction, and effectively solves minisize memory alloy stabilization and cause
The fixed part of dynamic device and the signal connectivity problem of movable part, structure are extremely compact and solid and reliable.
In order to achieve the above objectives, the utility model adopts the following technical solution:
The stabilization actuator of micro-optical stabilization drive motor, the stabilization actuator have substrate, fixed plate, movable plate and
It is connected and fixed the memory alloy wire of plate and movable plate；Movable plate activity is erected in fixed plate, and fixed plate is fixed on substrate, living
Movable plate has spring arm, and spring arm separates extended configuration by movable plate side, and the outer end of spring arm is with respect to fitting curved under movable plate
It is fixed in fixed plate, the outer end of spring arm is equipped with more than two signaling interfaces, and signaling interface realization is mounted on stabilization cause
The signal between optical element group and control module on dynamic device transmits connection；One is arranged between the movable plate and fixed plate
Or multiple spring bearings, move movable plate can with opposing fixed plate under the constraint of spring arm；Divide on movable plate and fixed plate
Be not equipped with memory alloy wire fixing clamp not diagonally, clamp the end of memory alloy wire respectively with this, memory alloy wire have four and by
Quadrangle distribution.
Above scheme is further: the first flexible circuit board is laid in the fixed plate, and movable plate lays the second flexibility
Circuit board is connected between the first flexible circuit board and the second flexible circuit board by the signaling interface on spring arm outer end.
Above scheme is further: the downside of the movable plate is equipped with evacuation gap slot close to the position of spring arm outer end.
Using the above structure, the utility model obtain it is following the utility model has the advantages that
1, miniature voice coil motor is mounted on movable plate, and control chip is based on minisize memory alloy optical anti-vibration actuator
The length variation of memory alloy wire pull the automatic Focus voice coil motor mobile, realize the jitter compensation of camera lens, make to take pictures or
Camera shooting obtains better image quality, simplifies the structure of mould group, reduces costs；And small power consumption, driving force is big, reaches
The effect of " high load with small power ".
2, spring arm separates extended configuration by movable plate side, and with respect under movable plate, curved fitting is fixed on for the outer end of spring arm
In fixed plate, the outer end of spring arm is equipped with more than two signaling interfaces, and signaling interface realization is mounted on stabilization actuator
Optical element group and control module between signal transmit connection；Cleverly connection structure designs, and solves movable plate and fixation
Multi-line, multi signal connection may be implemented in the problem of plate relatively moves, and simple process, structural stability is high, and not will increase
Mould group whole height, product structure is lightly changed and is minimized, and reduces manufacturing cost.
Detailed description of the invention:
Attached drawing 1 is the utility model preferred embodiment structural decomposition diagram；
Attached drawing 2 is the movable plate downside structural schematic diagram of Fig. 1 embodiment；
Attached drawing 3 is that Fig. 1 embodiment uses schematic diagram.
Specific embodiment:
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Shown in refering to fig. 1 ~ 3, a kind of stabilization actuator of the utility model in relation to micro-optical stabilization drive motor, this is anti-
Actuator 1 is trembled with substrate 14, fixed plate 11, movable plate 12 and the memory alloy wire 13 for being connected and fixed plate 11 and movable plate 12.
12 activity of movable plate is erected in fixed plate 11, and fixed plate 11 is fixed on the substrate 14, and movable plate 12 has spring arm 121, bullet
Spring arm 121 separates extended configuration by 12 side of movable plate, and with respect under movable plate 12, curved fitting is fixed on for the outer end of spring arm 121
On fixed board 11, the outer end of spring arm 121 is equipped with more than two signaling interfaces 1211, and the realization of signaling interface 1211 is mounted on anti-
It trembles the optical element group on actuator and the transmission of the signal between control module connects.Between the movable plate 12 and fixed plate 11
It arranges one or more spring bearings 15, move movable plate 12 can with opposing fixed plate 11 under the constraint of spring arm 121.It is living
Memory alloy wire fixing clamp is diagonally equipped on movable plate 12 and fixed plate 11 respectively, clamps the end of memory alloy wire 13 respectively with this
Head, memory alloy wire 13 have four and are distributed by quadrangle.
Further, the first flexible circuit board 16 is laid in the fixed plate 11, and movable plate 12 lays the second flexible electrical
Road plate 17 passes through the signaling interface on 121 outer end of spring arm between first flexible circuit board 16 and the second flexible circuit board 17
1211 connections.The downside of the movable plate 12 is equipped with evacuation gap slot 122, spring arm 121 close to the position of 121 outer end of spring arm
There are two, is distributed in 12 periphery of movable plate around the center poise of movable plate, support is steady, and elasticity is good.
When the utility model is used, automatic Focus voice coil motor 2 is mounted on the stabilization actuator 1 of micro-optical stabilization mould group
On movable plate 12 on, automatic 2 over-assemble camera lens 3 of Focus voice coil motor, automatic 2 periphery of Focus voice coil motor is provide with outside a protection
Lid 4.Movable plate 12 drives automatic Focus voice coil motor 2 in the movement of X/Y plane, controls chip and is based on minisize memory alloy optics
The length of memory alloy wire 13 on stabilization actuator 1 changes to pull automatic Focus voice coil motor 2 mobile, realizes camera lens 3
Jitter compensation.Memory alloy wire (such as Ultimum Ti silk) is martensitic structure at room temperature, and when the temperature increases, memory is closed
Spun gold can be undergone phase transition, and be austenite by martensite transfor mation, and length shortens, and resistance becomes smaller；When the temperature decreases, memory alloy wire
The phase transformation for being changed into martensite by austenite, length can occur, resistance becomes larger, the two processes can be repeated.?
During undergoing phase transition, the linearity is not fine between the temperature and strain of memory alloy wire, but in certain temperature range, it
Resistance and strain linear characteristic.Therefore its length can be accurately controlled by the resistance sizes of control memory alloy wire, and
And the position and movement distance of actuator is calculated according to the resistance of memory alloy wire.It is specified when being moved on stabilization actuator 1
The resistance of memory alloy wire at this time is fed back behind position can correct stabilization by comparing the deviation of this resistance value and target value
Movement deviation on actuator 1, to form one using the resistance of memory alloy wire as the closed-loop control system of feedback variable.
Spring arm 121 separates extended configuration by 12 side of movable plate, and does corresponding bending, integraty knot in extension
Structure obtains splendid elasticity, stablizes effectively support movable plate 12.The outer end of spring arm 121 is fixed with respect to fitting curved under movable plate 12
In fixed plate 11, the outer end of spring arm 121 is equipped with more than two signaling interfaces 1211, and signaling interface 1211 realizes installation
It is connected in the optical element group on stabilization actuator and the transmission of the signal between control module, meets multi-line, multi signal connection
Demand.The downside of movable plate 12 is equipped with evacuation gap slot 122 close to the position of 121 outer end of spring arm, meets 12 plane of movable plate
Movement, and interference will not be generated.
The control length of the chip based on the memory alloy wire on minisize memory alloy optical anti-vibration actuator of the utility model
Degree changes to pull automatic Focus voice coil motor 2 mobile, realizes the jitter compensation of camera lens, makes to take pictures or image acquisition preferably figure
Image quality amount.By by the ingenious laying of flexible circuit board, being allowed to have stronger deformability, it is opposite with fixed plate to solve movable plate
Multi-line, multi signal connection may be implemented in mobile problem, and simple process, structural stability is high, and it is whole not will increase mould group
Body height, product structure is lightly changed and is minimized, and reduces manufacturing cost.
Embodiment is combined to elaborate the utility model above, only the technical concept to illustrate the utility model
And feature can not be with this its object is to allow person skilled in the art to understand the content of the utility model and be implemented
The restriction protection scope of the utility model, therefore all equivalent change or modifications substantially done according to the spirit of the present invention, are all answered
Cover within the protection scope of the present utility model.
Claims (1)
1. the stabilization actuator of micro-optical stabilization drive motor, it is characterised in that: the stabilization actuator (1) has substrate
(14), fixed plate (11), movable plate (12) and the memory alloy wire (13) for being connected and fixed plate (11) and movable plate (12)；Movable plate
(12) activity is erected on fixed plate (11), and fixed plate (11) is fixed on substrate (14), and movable plate (12) has spring arm
(121), spring arm (121) separates extended configuration by movable plate (12) side, and the outer end of spring arm (121) is with respect to movable plate (12)
Under curved fitting be fixed on fixed plate (11), the outer end of spring arm (121) is equipped with more than two signaling interfaces (1211), letter
The realization of number interface (1211) is mounted on the optical element group on stabilization actuator and the transmission of the signal between control module connects；Institute
It states and arranges one or more spring bearings (15) between movable plate (12) and fixed plate (11), consolidate movable plate (12) can relatively
Fixed board (11) moves under the constraint of spring arm (121)；It is diagonal respectively on movable plate (12) and fixed plate (11) to be equipped with memory conjunction
Spun gold fixing clamp, the end of memory alloy wire (13) is clamped with this respectively, and memory alloy wire (13) has four and by quadrangle point
Cloth；It is laid the first flexible circuit board (16) on the fixed plate (11), and movable plate (12) lays the second flexible circuit board (17),
Pass through the signaling interface on spring arm (121) outer end between first flexible circuit board (16) and the second flexible circuit board (17)
(1211) it is connected to；The downside of the movable plate (12) is equipped with evacuation gap slot (122) close to the position of spring arm (121) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821408518.9U CN209201203U (en) | 2018-08-30 | 2018-08-30 | The stabilization actuator of micro-optical stabilization drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821408518.9U CN209201203U (en) | 2018-08-30 | 2018-08-30 | The stabilization actuator of micro-optical stabilization drive motor |
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| Publication Number | Publication Date |
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| CN209201203U true CN209201203U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821408518.9U Active CN209201203U (en) | 2018-08-30 | 2018-08-30 | The stabilization actuator of micro-optical stabilization drive motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110908066A (en) * | 2019-12-12 | 2020-03-24 | 东莞市亚登电子有限公司 | Multi-axis optical anti-shake and focusing device, camera module, and electronic apparatus |
| CN112130397A (en) * | 2019-09-11 | 2020-12-25 | 常州市瑞泰光电有限公司 | Lens module and electronic equipment |
| CN112865479A (en) * | 2019-11-26 | 2021-05-28 | 华为技术有限公司 | Memory alloy motor module, assembly system and assembly method |
| CN113132619A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Optical anti-shake device, camera module and mobile terminal |
-
2018
- 2018-08-30 CN CN201821408518.9U patent/CN209201203U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130397A (en) * | 2019-09-11 | 2020-12-25 | 常州市瑞泰光电有限公司 | Lens module and electronic equipment |
| CN112130397B (en) * | 2019-09-11 | 2022-07-12 | 常州市瑞泰光电有限公司 | Lens module and electronic equipment |
| CN112865479A (en) * | 2019-11-26 | 2021-05-28 | 华为技术有限公司 | Memory alloy motor module, assembly system and assembly method |
| CN112865479B (en) * | 2019-11-26 | 2022-02-01 | 华为技术有限公司 | Memory alloy motor module, assembly system and assembly method |
| CN110908066A (en) * | 2019-12-12 | 2020-03-24 | 东莞市亚登电子有限公司 | Multi-axis optical anti-shake and focusing device, camera module, and electronic apparatus |
| CN113132619A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Optical anti-shake device, camera module and mobile terminal |
| CN113132619B (en) * | 2019-12-31 | 2022-01-11 | 华为技术有限公司 | Optical anti-shake device, camera module and mobile terminal |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220121 Address after: 523000 Room 301, building 4, No. 7, Xinhe Shengfeng Road, Wanjiang street, Dongguan City, Guangdong Province Patentee after: Guangdong haideya Technology Co.,Ltd. Address before: 3 / F, building D, No. 12, Shengfeng Road, Xinhe community venture industrial park, Wanjiang District, Dongguan City, Guangdong Province 523000 Patentee before: DONGGUAN YADENG ELECTRONICS Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240829 Address after: 215311, 2nd Floor, No. 2133 Donghe Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Henan Haoze Electronics Co.,Ltd. Kunshan Branch Country or region after: China Address before: 523000 Room 301, building 4, No. 7, Xinhe Shengfeng Road, Wanjiang street, Dongguan City, Guangdong Province Patentee before: Guangdong haideya Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |