CN110007543A - A kind of high-performance and reliable miniature stabilization holder - Google Patents
A kind of high-performance and reliable miniature stabilization holder Download PDFInfo
- Publication number
- CN110007543A CN110007543A CN201910222027.8A CN201910222027A CN110007543A CN 110007543 A CN110007543 A CN 110007543A CN 201910222027 A CN201910222027 A CN 201910222027A CN 110007543 A CN110007543 A CN 110007543A
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- China
- Prior art keywords
- circuit board
- magnetite
- performance
- camera lens
- connect
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
Abstract
The invention discloses a kind of high-performance and reliable miniature stabilization holders, comprising: at least one shell, at least one positioning seat, at least one set of elastic material, at least one set of flexible material, at least one set of magnetite, at least one set of absolute coil and a camera mould group；Magnetite is set to motionless structure or bascule, and absolute coil is set to bascule or motionless structure, and magnetite and absolute coil are in different structures；One end of flexible material is connect with camera mould group, the other end and cage connection；The both ends of elastic material are connect with camera mould group, positioning seat respectively, form a mass-spring system；The purpose of the present invention is improving existing MGS technology, the vibration resistance and heat-sinking capability of MGS are improved, the performance and reliability of MGS are improved.
Description
Technical field
The present invention relates to stabilization holder technical field more particularly to a kind of high-performance and reliable miniature stabilization holders.
Background technique
The small-sized mobile devices with focusing wide angle (visual angle is more than 80 degree) shooting function are very universal in recent years, using model
Also constantly extension is enclosed, including Zhi Yan Jing ﹑ Ping plate Ji Suan Ji ﹑ and can take photo by plane.In said device, wide comprising an at least fixed-focus
Angle camera mould group (Fixed-focus wide-angle camera module).Therefore, the market of the mould group is very huge, increases
Length also raises up steadily.When taking pictures and clapping film, described device takes the photo come and film is most likely subject to Extraneous vibrations and
Occur fuzzy or shake, influences photo and film quality.It is fiercer when vibrating, or in low smooth situation, this problem can be more
Seriously.
To solve the above-mentioned problems, many existing stabilization technologies are had already appeared in the market.The existing mainstream technology passes through
Reading vibrating sensor (such as: gyroscope and acceleration sensor), vibrational waveform and required offset angle are calculated, electricity is passed through
The image blur and shaking that sub- ﹑ Guang ﹑ or mechanical means compensation are made by vibration, up to the effect for causing improvement image quality.
The prior art can be divided into four classes, including electron image stabilizer (Electronic by method for compensating vibration
Image stabilizer, EIS) ﹑ optical image stabilizer (Optical Image stabilizer, OIS) ﹑ stabilization holder
(Gimbal Stabilizer, GS) ﹑ and miniature stabilization holder (Micro Gimbal Stabilizer, MGS).EIS ﹑ OIS ﹑
And MGS has their own advantages and disadvantage.
EIS is by electronic method, up to cause anti-shake effect.When shooting, EIS can be adjusted with the vibrational waveform according to calculating
The position of each frame image is offset the image being made by vibration and is shaken.Since EIS does not need additional actuator, so EIS
Major advantage be it is at low cost, close to be not necessarily to additional weight and volume.
OIS be by optics and mechanical means, using the mobile optical component of actuator (it is can be magazine a piece of, one
Group or all eyeglasses), up to causing occur relative motion between optical component and imaging sensor, change optical path (Optical Path)
And at the position image circle (Image Circle), offsets the image being made by vibration and shake.Since OIS is to shoot each frame image
In constantly make optical compensation, therefore shake when can offset each frame image exposure can be up to causing image matter more preferably than EIS
Element.
GS (referenced patent: CN103513492A ﹑ CN104903790A ﹑ EP3086451A1 ﹑ and
US20090257741A1) be the entire camera mould group comprising eyeglass and imaging sensor of driving by mechanical means, make and
Direction of vibration on the contrary, but the close movement of amplitude, offset the shaking being made by vibration.In anti-shaking process, due to optical component
There is no relative motion between imaging sensor, so image quality and anti-shake effect are not in decline in image edge, also
Part optics resolution and imaging sensor part resolution because of stabilization Xi domestic animal camera lens are not needed.Therefore, the stabilization of GS
Effect and image quality ratio EIS and OIS are advantageous, and the advantage is more prominent in wide angle camera mould group.
The stabilization principle and GS of MGS (referenced patent: 208399865U) is close, be all by drive entirely comprising eyeglass and
The camera mould group of imaging sensor, up to the effect for causing stabilization.MGS is designed using special elastic slice and flexible circuit board, Da Zhijie
Save space.In order to be further simplified design and save space, be not provided in MGS displacement sensor (such as: Hall effect sensing
Device), induction movable member (such as: coil, camera lens, lens mount and image sensor) relative to not dynamic component (such as: magnetite and
Shell) deflection or displacement.MGS, using open-loop control method, deflects camera lens up to cause anti-shake effect in anti-shaking process.
The main Que Dian Yes of EIS can not compensate the shaking of the image in each frame, this is because EIS is by adjusting each frame
The position of image is offset the image being made by vibration and is shaken.So the image that EIS is shot after opening can be easier to occur because of shadow
As what shaking was made into obscures.
Another EIS is the disadvantage is that the Xi domestic animal resolution of imaging sensor.When EIS is opened, imaging sensor or image
Processor needs to cut out suitable image by calculating vibrational waveform, as final image.In tailoring process, resolution can under
Drop, the final image can resolution more maximum than imaging sensor it is low.Therefore, EIS can the maximum solution of Xi domestic animal imaging sensor
Picture degree reduces image quality.
Opposite GS, the major defect of OIS is the part optics resolution of Xi domestic animal camera lens.During OIS, imaging coil is being schemed
As the position on sensor can constantly change.Exceed imaging sensor during OIS in order to avoid exceeding at image circle, at image circle
It must expand because of OIS, but this can waste the due resolution of camera lens.On the other hand, during OIS, treat as image circle
Position it is more inclined when, can be closer to imaging sensor at image circle edge.Since most camera lens is in edge blurry degree and distortion
Degree is all more serious than center, therefore the image resolution of general OIS and anti-shake effect, all not as good as GS, this problem is in wide angle camera mould group
In become apparent from.
Although image quality and anti-shake effect the ratio OIS and EIS of GS has a clear superiority, GS needs can drive entire phase
The actuator of machine mould group.Since the weight and size of camera mould group are more more than camera lens, the Cheng of GS actuator this ﹑ Chong Liang ﹑ body
Long-pending and power consumption is usually more much higher than OIS actuator, suitable for application in small-sized mobile devices, or can reduce mobile device battery
Cruise duration.
On the other hand, the GS technology (referenced patent: CN103513492A ﹑ CN104903790A ﹑ EP3086451A1 ﹑ of mainstream
And US20090257741A1) ball bearing or other contact points with frictional force are used, as fixed and movable member
Between mechanical support structure.Due to being nonlinear pass between the frictional force of the support construction and the speed of movable member
System, therefore the support construction increases nonlinear frictional force, the frictional force can influence anti-shake effect.Especially work as vibration
When dynamic finer and frequency is higher, influencing can be more obvious, and anti-shake effect may be not good enough.In addition, most GS technology is adopted
With closed-loop control, the control circuit of GS needs additional power consumption to stablize stabilization system.It is described when Oscillation Amplitude and excessively high frequency
Output voltage needed for control circuit or electric current may exceed the limit of control circuit, and circuit overheat or anti-shake effect is caused to owe
It is good.
Because MGS is not not in the shortcomings that frictional force is brought using the contact point for having frictional force.But
It is, since MGS uses elastic slice and open-loop control system, when MGS is total to by intense vibration or vibration frequency close to the system
The problem of when vibration frequency, being easy to appear resonant conditions, causing video blur and shake.If fruit this situation occurs for a long time, more may be used
MGS internal part can be destroyed, leads to occur dust or MGS on imaging sensor to can not work normally, influences the reliable of MGS
Property.In addition, the image sensor can not be rigid because the image sensor needs in MGS deflect in anti-shaking process
It is fixed in motionless structure.The heat that image sensor issues can only pass through far distance by thermal radiation, or by heat transfer
Get to the shell of MGS.Since the efficiency of these methods is all very low, causes the image sensor temperature in MGS higher, cause
Image noise is more.This problem also results in the image sensor in MGS and can not work in the environment of higher temperatures, limits MGS
Highest ambient operating temperature, reduce the reliability of MGS.
Summary of the invention
The present invention provides a kind of high-performance and reliable miniature stabilization holders, to solve the image sensor temperature in MGS
Degree is higher, causes image noise more and is easy to appear the technical problems such as resonance, to improve the vibration resistance and heat radiation energy of MGS
Power improves the performance and reliability of MGS.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of high-performance and reliable miniature stabilization clouds
Platform, comprising: at least one shell, at least one positioning seat, at least one set of elastic material, at least one set of flexible material, at least one
Group magnetite, at least one set of absolute coil and a camera mould group；
The shell is connect with the positioning seat, and the positioning seat also connects with the camera mould group through the elastic material
It connects, the shell and the positioning seat form motionless structure outside holder, and the camera mould group is set to bascule；
One group of magnetite includes that at least one block of magnetite, the absolute coil is correspondingly arranged with the magnetite；
The magnetite is set to motionless structure or bascule, and the absolute coil is set to bascule or motionless knot
Structure, the magnetite and the absolute coil are in different structures；
The both ends of the elastic material are connect with the camera mould group, the positioning seat respectively, form a spring oscillator
System；
One end of the flexible material is connect with the camera mould group, the other end and the cage connection.
Preferably, the camera mould group includes at least a piece of circuit board, at least one camera lens, at least one camera lens
Carrier and at least one imaging sensor, the camera lens are connect with the camera lens carrier, the camera lens carrier also with the circuit
Plate connection and the camera lens carrier have the rotation center of a multiaxis rotary freedom；
The lower section of the camera lens be equipped with imaging sensor, described image sensor be set to the circuit board on and with the electricity
Road plate is electrically connected；One end of the flexible material and the circuit board rigid connection, the other end and the cage connection.
Preferably, the distance length of the flexible material and the rotation center is greater than the miniature stabilization holder
The 10% of total height.
Preferably, the making material of the camera lens carrier and the positioning seat is non-conducting material；It is described outer
The making material of shell is the material that can shield frequency electromagnetic waves.
Preferably, the circuit board includes the first hard circuit board, the second hard circuit board, third rigid circuit
Plate, the first flexible circuit board, the second flexible circuit board, first hard circuit board carries described image sensor and first is hard
The periphery of property circuit board is connect with first flexible circuit board completely, the periphery of first flexible circuit board completely with it is described
The connection of second hard circuit board, second hard circuit board are also connect with second flexible circuit board, and described second is soft
Circuit board is also connect with the third hard circuit board；
The camera lens carrier and first hard circuit board are rigidly connected, second hard circuit board and the positioning
Seat rigid connection.
Preferably, the lower section of second hard circuit board is equipped with stabilization control chip and vibrating sensor, institute
It states stabilization control chip and the vibrating sensor and second hard circuit board is electrically connected.
Preferably, including magnetite described in two groups, magnetite described in every group are made of two pairs of magnetites, each pair of described
Magnetite is set on any one group of opposite side of inner wall of the shell, each pair of magnetite magnetite opposite by two pieces of magnetic directions
It is upper and lower that composition is arranged side by side, it further include the absolute coil that is identical as the magnetite logarithm and being correspondingly arranged with the magnetite
And the elastic material.
The shell part preferably connected with the flexible material is equipped with the hole of at least one.
Preferably, the flexible material is made of silicon, can be one of silica gel, silicone or silicone oil or a variety of
Combination.
It preferably, also include metal powder or micro metal item in the flexible material.
Compared with the prior art, the embodiment of the present invention has the following beneficial effects:
1. the present invention provides a kind of high-performance and reliable miniature stabilization holder, simple and compact for structure, easy to assembly, favorably
In mass production or even automated production；
2. the flexible material can effectively improve the damping due to rotation coefficient of mass-spring system, stabilization holder can be improved and existed
Stabilization performance and reliability under high frequency and violent oscillatory motion；
3. the flexible material does not need extra power consumption up to the effect for causing raising damping, relative to closed-loop system more power saving；
4. the flexible material can provide additional and effective heat conduction path, the temperature of imaging sensor can be lowered and made an uproar
Sound promotes image quality and highest Ambient Operating Temperature；
5. the miniature holder have cost, weight, volume and it is low in energy consumption the advantages that；
6. the image edge quality of the miniature holder is not in decline in anti-shaking process, also do not need because anti-
The part optics resolution and imaging sensor part resolution of Xi domestic animal camera lens are trembled, so the stabilization of the miniature holder is imitated
Fruit and image quality ratio EIS and OIS are advantageous, and the advantage is more prominent in wide angle camera mould group；
7. due to being not in nonlinear frictional force in anti-shaking process, so the miniature holder can be up to cause more than GS
Good anti-shake effect, especially when the finer and direction of vibration usually changes；
8. it is high by the displacement stiffness factor that elastic material forms multiaxis rotary freedom mass-spring system, it is outer when occurring
To vibrate or when the changed course of the direction of holder changes, rotation center in the mass-spring system is close to being not in displacement, institute
Will not influence the anti-shake effect of the miniature holder, the resilience of the miniature holder can be also improved.
Detailed description of the invention
Fig. 1: for the outline structural diagram of the embodiment of the present invention；
Fig. 2: for the structure expanded schematic diagram of the embodiment of the present invention one；
Fig. 3: for the sectional view one of the embodiment of the present invention；
Fig. 4: for the sectional view two of the embodiment of the present invention；
Fig. 5: for the heat conduction path schematic diagram of the embodiment of the present invention；
Fig. 6: for the top view of the circuit board of the embodiment of the present invention；
Fig. 7: for the side view of the circuit board of the embodiment of the present invention；
Fig. 8: for the bottom view of the circuit board of the embodiment of the present invention；
Fig. 9: for the working state figure of the embodiment of the present invention；
Figure 10: for the structure expanded schematic diagram of the embodiment of the present invention two；
Wherein, the appended drawing reference of Figure of description is as follows:
1, upper casing, 2, positioning seat, 3, lower casing, 4, socket, 5, camera lens, 6, magnetite, 7, absolute coil, 8, camera lens load
Body, 9, spring, 10, circuit board, 11, imaging sensor, 12, flexible material, 13, heat conduction path, the 14, first rigid circuit
Plate, the 15, second hard circuit board, 16, third hard circuit board, the 17, first flexible circuit board, the 18, second flexible circuit board,
19, vibrating sensor, 20, stabilization control chip, 21, rotation center, 601-604, magnetite, 701-702, absolute coil.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of high-performance and reliable miniature stabilization holders, comprising: at least one shell, extremely
A few positioning seat, at least one set of elastic material, at least one set of flexible material, at least one set of magnetite, at least one set of absolute coil
An and camera mould group；The shell is connect with the positioning seat, and the positioning seat is also through the elastic material and the phase
The connection of machine mould group, the shell and the positioning seat form motionless structure outside holder, and the camera mould group is set to activity
Structure；One group of magnetite includes at least one block of magnetite, and the magnetite is set on any inner wall of the shell, the independent lines
Circle is set on the outer wall of the camera mould group and is correspondingly arranged with the magnetite；The magnetite is set to motionless structure or activity knot
Structure, the absolute coil are set to bascule or motionless structure, and the magnetite and the absolute coil are in different structures
In the middle；The both ends of the elastic material are connect with the camera mould group, the positioning seat respectively, form a spring vibration subsystem
System；One end of the flexible material is connect with the camera mould group, the other end and the cage connection.
In the present embodiment, the camera mould group includes at least a piece of circuit board, at least one camera lens, at least one camera lens
Carrier and at least one imaging sensor, the camera lens are connect with the camera lens carrier, the camera lens carrier also with the circuit
Plate connection and the camera lens carrier have the rotation center of a multiaxis rotary freedom；The lower section of the camera lens is equipped with image
Sensor, described image sensor are set on the circuit board and are electrically connected with the circuit board；The one of the flexible material
End and the circuit board rigid connection, the other end and the cage connection.
In the present embodiment, the distance length of the flexible material and the rotation center is greater than the miniature stabilization holder
The 10% of total height.
In the present embodiment, the making material of the camera lens carrier and the positioning seat is non-conducting material；It is described outer
The making material of shell is the material that can shield frequency electromagnetic waves.
In the present embodiment, the circuit board includes the first hard circuit board, the second hard circuit board, third rigid circuit
Plate, the first flexible circuit board, the second flexible circuit board, first hard circuit board carries described image sensor and first is hard
The periphery of property circuit board is connect with first flexible circuit board completely, the periphery of first flexible circuit board completely with it is described
The connection of second hard circuit board, second hard circuit board are also connect with second flexible circuit board, and described second is soft
Circuit board is also connect with the third hard circuit board；The camera lens carrier and first hard circuit board are rigidly connected, institute
It states the second hard circuit board and the positioning seat is rigidly connected.
In the present embodiment, the lower section of second hard circuit board is equipped with stabilization control chip and vibrating sensor, institute
It states stabilization control chip and the vibrating sensor and second hard circuit board is electrically connected.
In the present embodiment, including magnetite described in two groups, magnetite described in every group are made of two pairs of magnetites, each pair of described
Magnetite is set on any one group of opposite side of inner wall of the shell, each pair of magnetite magnetite opposite by two pieces of magnetic directions
It is upper and lower that composition is arranged side by side, it further include the absolute coil that is identical as the magnetite logarithm and being correspondingly arranged with the magnetite
And the elastic material.
The shell part connected in the present embodiment with the flexible material is equipped with the hole of at least one.
In the present embodiment, the flexible material is made of silicon, can be one of silica gel, silicone or silicone oil or a variety of
Combination.
It in the present embodiment, also include metal powder or micro metal item in the flexible material.
Below with reference to specific embodiment, the present invention is described in detail.
It is the embodiment of the present invention one as shown in figure one to three and six to eight, a kind of high-performance and reliable miniature stabilization
Holder, comprising shell, a positioning seat, one group of magnetite, a camera lens, one group of absolute coil, a camera lens carrier, one group it is soft
Material, one group of energization elastic material and a piece of flexible-rigid compound circuit board.The rectangular in cross-section shape of shell, in order to facilitate the installation of, outside
Shell can be divided into shell and lower casing two parts.
One group of magnetite includes at least one block of magnetite, and the magnetite is set on any inner wall of the shell, described only
Vertical coil is set on the outer wall of the camera mould group and is correspondingly arranged with the magnetite；The magnetite is set to motionless structure, institute
It states absolute coil and is set to bascule, the magnetite and the absolute coil are in different structures；The elasticity material
The both ends of material are connect with the camera mould group, the positioning seat respectively, form a mass-spring system；
As shown in figure four, five, nine and ten, on the basis of above embodiments one, to magnetite quantity of the invention and structure
It improves, including magnetite described in two groups, magnetite described in every group is made of two pairs of magnetites, and each pair of magnetite is set to described
On any one group of opposite side of the inner wall of shell, each pair of magnetite is set side by side above and below by the opposite magnetite of two pieces of magnetic directions
Composition is set, further includes the absolute coil and the elastic material that be identical as the magnetite logarithm and being correspondingly arranged with the magnetite
Material.
As shown in Figure IV, magnetite group includes magnetite 601,602,603 and 604；Coil group includes coil 701 and 702, coil
701 and 702 are connected on circuit.
In above embodiments one and embodiment two, as shown in figure six to eight, the flexible-rigid compound circuit board is soft by multi-disc
Property and hard circuit board composition；First hard circuit board (inside casing) connects the camera lens carrier in movable structure, and top is equipped with image
Sensor；Described image sensor can top camera lens, collect from environment come light source；Second hard circuit board (outline border) is even
The positioning seat in motionless structure is connect, lower section is equipped with stabilization control chip and vibrating sensor；First flexible circuit board is as first
Circuit connection between hard circuit board and the second hard circuit board；In the miniature holder electronic component (such as: image pass
Sensor, stabilization control chip and vibrating sensor) the second flexible circuit board, third hard circuit board and socket can be passed through
It connects and communicates on circuit with the component other than the miniature holder.
As shown in figure two to three, one group of energization elastic material is made of four sheet metals not in one plane,
And be mechanically connected with camera lens carrier and positioning seat, and with the second hard circuit board (outline border) in flexible-rigid compound circuit board
And coil makees circuit connection；The upper shell and lower casing and positioning seat are mechanically connected, and are made of metal, and cloud is reduced
Platform is to external component and external component to the high-frequency electromagnetic wave interference of imaging sensor.
By adjusting the current direction and size of coil group, the rotation in the direction Rx and Ry just can be caused, up to two axis stabilizations of cause
Effect.For example, as seen in figure 9, when camera mould group needs to rotate toward the direction Ry+ during optical anti-vibration, in coil group
Coil 701 and 702 is powered, and generates the torque in corresponding electromagnetic force F and the direction Ry+, up to the effect for causing the past direction Ry+ to rotate
Fruit.
As shown in figure two to five, one group of flexible material is set to below imaging sensor, and connects the first hardness electricity
Road plate (inside casing) and lower casing.One group of flexible material provides additional heat conduction path, can be effectively image sensing
The heating power that device issues is guided to lower casing, is conducive to the temperature for lowering imaging sensor, is reduced image noise and is improved stabilization cloud
The maximum allowable operating temperature (M.A.O.T.) of platform.
As seen in figure 9, the position of flexible material is far from rotation center (more than the 10% of miniature holder total height).Institute
The characteristic (more than 0.3) that soft material has high loss coefficient (Loss factor) is stated, the spring vibration subsystem can be effectively improved
The damping due to rotation coefficient of system.So flexible material can effectively improve the rotation in the direction Rx and Ry of the mass-spring system
Damped coefficient lowers the chance for occurring resonating, and improves anti-shake effect and mass-spring system reliability and antivibration energy.Due to
The performance of flexible material is more stable under high-frequency and violent oscillatory motion, therefore performance in this case may be than closed loop stabilization
System is more preferable.In addition, flexible material does not need additional energy up to increase damping and effectiveness in vibration suppression is caused, so than closed loop stabilization system
More power saving.
In addition, as shown in Figure 5, the part of lower casing and flexible material contact has many duck eyes, these duck eyes can be mentioned effectively
Rise the stable connection and reliability between flexible material and lower casing.
Specifically, in the present embodiment two, the cross section of shell is rectangular, and two groups of magnetites (being four pairs of magnetites) are respectively
Positioned at four side positions of upper interior of shell, so as to more effectively utilize the confined space in holder inside.
Other than structure in the embodiment of the present invention 1 and 2, there are also other approximate structures all in protection scope of the present invention
It is interior.Such as the cradle head structure in embodiment 3, its structure be substantially with the cradle head structure in embodiment 1 it is consistent, in addition to magnetite
With the location swap of coil.In other words, magnetite is in movable structure, and coil is in motionless structure.Coil and the second hardness electricity
Road plate (outline border) connects on circuit.
There is no relative motion between optical component and imaging sensor in embodiment 1-3 in the present invention, so image quality
And anti-shake effect will not decline in image edge, also not need the part optics resolution because of stabilization Xi domestic animal camera lens, with
And imaging sensor part resolution.
In addition, the structure in the present invention in embodiment 1-3 does not need ball or other have the contact point of frictional force, as
Mechanical support structure between fixed and movable member, therefore avoid occurring nonlinear frictional force in anti-shaking process, up to cause
More preferably anti-shake effect.Especially when the finer and direction of vibration usually changes, the anti-shake effect of structure is excellent in the present invention
Gesture can become apparent from.
It is simple and compact for structure in embodiment 1-3 in the present invention, it is easy to assembly, be conducive to mass production, or even automation
Production, thus it is all advantageous in Cheng this ﹑ Chong Liang ﹑ volume and power consumption.
In other embodiments, the soft material is made of silicon, can be silica gel (Silicone Gel), silicone
(Silicone) or silicone oil (Silicone Oil)；It include metal powder or micro metal item in the soft material；Shell and
The part of flexible material contact does not have hole；The elastic material can be by at least piece of elastic material in one or more planes
Composition, elastic material can be conductive or non-conductive；Vibrating sensor or stabilization control chip can not clouds in the present invention
In platform structure；Displacement or deflection sensor can be added in the present invention, implement the control of closed loop stabilization；Using the magnetic of other numbers
Stone group, coil group and shelling machine, also within protection scope of the present invention.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-performance and reliable miniature stabilization holder characterized by comprising at least one shell, at least one is fixed
Position seat, at least one set of elastic material, at least one set of flexible material, at least one set of magnetite, at least one set of absolute coil and one
Camera mould group；
The shell is connect with the positioning seat, and the positioning seat is also connect with the camera mould group through the elastic material, institute
It states shell and the positioning seat forms motionless structure outside holder, the camera mould group is set to bascule；
One group of magnetite includes that at least one block of magnetite, the absolute coil is correspondingly arranged with the magnetite；
The magnetite is set to motionless structure or bascule, and the absolute coil is set to bascule or motionless structure, institute
It states magnetite and the absolute coil is in different structures；
The both ends of the elastic material are connect with the camera mould group, the positioning seat respectively, form a mass-spring system；
One end of the flexible material is connect with the camera mould group, the other end and the cage connection.
2. high-performance as described in claim 1 and reliable miniature stabilization holder, which is characterized in that the camera mould group includes
At least a piece of circuit board, at least one camera lens, at least one camera lens carrier and at least one imaging sensor, the camera lens with
The camera lens carrier connection, the camera lens carrier is also connect with the circuit board and the camera lens carrier has a multiaxis rotation
Turn the rotation center of freedom degree；
The lower section of the camera lens be equipped with imaging sensor, described image sensor be set to the circuit board on and with the circuit board
It is electrically connected；One end of the flexible material and the circuit board rigid connection, the other end and the cage connection.
3. high-performance as claimed in claim 2 and reliable miniature stabilization holder, which is characterized in that the flexible material and institute
The distance length for stating rotation center is greater than the 10% of the miniature stabilization holder total height.
4. high-performance as claimed in claim 2 and reliable miniature stabilization holder, which is characterized in that the camera lens carrier and institute
The making material for stating positioning seat is non-conducting material；The making material of the shell is the material that can shield frequency electromagnetic waves.
5. high-performance as claimed in claim 2 and reliable miniature stabilization holder, which is characterized in that the circuit board includes the
One hard circuit board, the second hard circuit board, third hard circuit board, the first flexible circuit board, the second flexible circuit board, it is described
First hard circuit board carry the periphery of described image sensor and the first hard circuit board completely with first flexible circuit
Plate connection, the periphery of first flexible circuit board are connect with second hard circuit board completely, second rigid circuit
Plate is also connect with second flexible circuit board, and second flexible circuit board is also connect with the third hard circuit board；
The camera lens carrier and first hard circuit board are rigidly connected, and second hard circuit board and the positioning seat are rigid
Property connection.
6. high-performance as claimed in claim 5 and reliable miniature stabilization holder, which is characterized in that second rigid circuit
The lower section of plate is equipped with stabilization control chip and vibrating sensor, the stabilization control chip and the vibrating sensor and described the
Two hard circuit boards are electrically connected.
7. high-performance as described in claim 1 and reliable miniature stabilization holder, which is characterized in that including magnetic described in two groups
Stone, magnetite described in every group are made of two pairs of magnetites, and each pair of magnetite is set to any one group of opposite side of inner wall of the shell
On, each pair of magnetite is arranged side by side above and below by the opposite magnetite of two pieces of magnetic directions and is formed, and further includes and the magnetite
Logarithm is identical and the absolute coil and the elastic material that are correspondingly arranged with the magnetite.
8. high-performance as described in claim 1 and reliable miniature stabilization holder, which is characterized in that and the flexible material connects
The shell part connect is equipped with the hole of at least one.
9. high-performance as described in claim 1 and reliable miniature stabilization holder, which is characterized in that the flexible material is by silicon
Composition, can be one of silica gel, silicone or silicone oil or multiple combinations.
10. high-performance as claimed in claim 9 and reliable miniature stabilization holder, which is characterized in that in the flexible material
It also include metal powder or micro metal item.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910222027.8A CN110007543A (en) | 2019-03-22 | 2019-03-22 | A kind of high-performance and reliable miniature stabilization holder |
| PCT/CN2019/081658 WO2020191812A1 (en) | 2019-03-22 | 2019-04-08 | Micro gimbal stabilizer with high performance and reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910222027.8A CN110007543A (en) | 2019-03-22 | 2019-03-22 | A kind of high-performance and reliable miniature stabilization holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110007543A true CN110007543A (en) | 2019-07-12 |
Family
ID=67167787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910222027.8A Pending CN110007543A (en) | 2019-03-22 | 2019-03-22 | A kind of high-performance and reliable miniature stabilization holder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110007543A (en) |
| WO (1) | WO2020191812A1 (en) |
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| WO2020191812A1 (en) | 2020-10-01 |
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Application publication date: 20190712 |