CN205602149U - Unmanned aerial vehicle - Google Patents
Unmanned aerial vehicle Download PDFInfo
- Publication number
- CN205602149U CN205602149U CN201620345705.1U CN201620345705U CN205602149U CN 205602149 U CN205602149 U CN 205602149U CN 201620345705 U CN201620345705 U CN 201620345705U CN 205602149 U CN205602149 U CN 205602149U
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- Prior art keywords
- shape memory
- unmanned plane
- lens assembly
- allow wires
- assembly
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- 230000003287 optical effect Effects 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 46
- 238000013016 damping Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract description 14
- 230000008602 contraction Effects 0.000 description 12
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- 241000218202 Coptis Species 0.000 description 4
- 235000002991 Coptis groenlandica Nutrition 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
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- 229910000734 martensite Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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- Lens Barrels (AREA)
Abstract
The utility model provides an unmanned aerial vehicle, it includes: a fuselage and installing in the make a video recording subassembly and the power component of fuselage, the subassembly of making a video recording includes camera lens subassembly and drive assembly, wherein, the camera lens subassembly includes the lens cone and sets up at least one lens in the lens cone, drive assembly includes base and shape memory alloy line, be provided with on the base and hold the chamber, hold the chamber and be used for holding the camera lens subassembly, the shape memory alloy line sets up on the base, and the shape memory alloy line holds the camera lens subassembly of intracavity and presets the displacement along the optical axis orientation removal of lens with the drive through the shrink of circular telegram production to it is fixed to enable camera lens subassembly relative base holding position after the displacement is preset in the removal, thereby prevents the camera lens subassembly because the produced vibrations of power component and the focus shake that results in.
Description
Technical field
This utility model relates to vehicle technology field, particularly relates to a kind of unmanned plane.
Background technology
Unmanned plane is controlled by radio robot, unmanned carrier, such as unmanned flight
Device, unmanned vehicle, unmanned boat etc., have the advantages such as little, the maneuverability of volume, unmanned plane due to unmanned plane
It is used widely in the field of taking photo by plane.
At present, camera module employed in the process of taking photo by plane is commonly used is that voice coil motor drives as camera lens
Dynamic device.But, owing to unmanned plane also exists the vibration of upper frequency, this vibration can be delivered to shooting
On head, this vibration cannot be resisted owing to the driving force of voice coil motor is the least, photographic head will be caused in focusing
During because vibration and move forward and backward, cause accurately focusing.
Utility model content
This utility model provides a kind of unmanned plane, is used for ensureing that lens assembly is accurately focused.
This utility model provides a kind of unmanned plane, comprising: a fuselage and be installed on taking the photograph of described fuselage
As assembly and Power Component, described camera assembly includes lens assembly and drives assembly；Wherein,
Described lens assembly includes lens barrel and at least one eyeglass being arranged in described lens barrel；
Described driving assembly includes pedestal and shape memory allow wires；
Being provided with receiving chamber on described pedestal, described receiving chamber is used for accommodating described lens assembly；
Described shape memory allow wires is arranged on described pedestal, and described shape memory allow wires is by logical
What electricity produced shrinks to drive the described lens assembly optical axis side along described eyeglass of described receiving intracavity
To mobile preset displacement, and described lens assembly the most described base after mobile described preset displacement can be made
Seat holding position is fixed, thus prevents described lens assembly from shaking produced by described Power Component
And the focal length shake caused.
Alternatively, described pedestal is provided with two and is electrically connected with contact portion, the two of described shape memory allow wires
End is electrically connected with contact portion with said two respectively and is connected.
Alternatively, described driving assembly also includes: drive division, and described drive division is arranged on described receiving chamber
Outside, described drive division under the drive of described shape memory allow wires, drives described lens group
Part moves preset displacement along the optical axis direction of described eyeglass.
Alternatively, described drive division includes driving platform and being arranged on the connector on described driving platform, institute
State connector to be connected with described shape memory allow wires.
Alternatively, described connector is the projection being arranged on described driving platform side, at least part of described shape
Shape memory alloys line hook is located at the lower edge of described projection.
Alternatively, described drive division also includes that bearing part, described bearing part are arranged in described receiving chamber,
And described bearing part is connected with described driving platform, described bearing part is used for carrying described lens assembly.
Alternatively, described bearing part, formation sliding cavity between described driving platform and the sidewall of described pedestal,
Described sliding cavity is provided with for reducing the sliding part of frictional force between described driving platform and described pedestal.
Alternatively, described pedestal being additionally provided with limiting section, described limiting section is positioned at outside described receiving chamber
Portion, described limiting section includes the first limiting plate and the second limiting plate being oppositely arranged, and described first spacing
Plate and described second limiting plate are perpendicular to the optical axis direction of described eyeglass, and described drive division is arranged on described
Between one limiting plate and described second limiting plate.
Alternatively, described driving assembly also includes: elastic component, and described elastic component is arranged on described drive division
And between described first limiting plate, when the energising of described shape memory allow wires is shunk, described elastic component quilt
Compression.
Alternatively, described elastic component is spring.
Alternatively, the distance between the two ends of described shape memory allow wires with described drive division is equal.
Alternatively, the side of described pedestal is provided with avoiding hollow groove, and described shape memory allow wires is kept away described
Move in dead slot.
Alternatively, described shape memory allow wires is camber line or bending wire, and described marmem
Angle between line place plane and described optical axis direction is more than 0 degree, and less than 90 degree.
Alternatively, described driving assembly also includes displacement transducer and current control circuit plate, described displacement
Sensor is arranged on the sidewall of described pedestal, institute's displacement sensors and described current control circuit plate electricity
Connecting, described current control circuit plate electrically connects with described shape memory allow wires；
Institute's displacement sensors, for detecting the moving displacement of described lens assembly, and by described mobile position
Move and send to described current control circuit plate；
Described current control circuit plate, for the initial position according to described lens assembly and described movement
Displacement, controls the electrical current of described shape memory allow wires, so that described lens assembly moves to target
Position.
Alternatively, described driving assembly also includes substrate and arranges imageing sensor core on the substrate
Sheet, described substrate electrically connects with described current control circuit plate.
Alternatively, described camera assembly also includes that shell, described jacket are located on described pedestal.
Alternatively, described Power Component includes propeller and drives the motor of described propeller rotational, with
The lift of described unmanned plane is provided.
Alternatively, described fuselage include portion of body center and along portion of described body center extend at least one
Horn, described Power Component is arranged on described horn.
Alternatively, described camera assembly also includes: The Cloud Terrace；
Described The Cloud Terrace is arranged on the lower section in portion of described body center, and described The Cloud Terrace is provided with installation portion, institute
State driving assembly to be arranged on described installation portion.
Alternatively, described unmanned plane also includes: damping device, and described damping device is arranged on described The Cloud Terrace
And between portion of described body center.
Alternatively, described fuselage includes upper shell and lower house；Wherein,
Described upper shell and the involutory setting of described lower house, define portion of described body center and along described machine
At least one horn that body central part extends.
Alternatively, described unmanned plane also includes: metallic cavity and foot rest；
Described metallic cavity is arranged between described upper shell and described lower house, and described metallic cavity is used for
Placing battery, described foot rest is arranged on the lower section of described lower house.
Alternatively, described unmanned plane is unmanned vehicle.
The unmanned plane that this utility model provides, the camera assembly including a fuselage and being installed on fuselage and dynamic
Power assembly, this camera assembly includes lens assembly and drives assembly；Assembly is driven to include pedestal and shape
Memory alloy wire；It is provided with receiving chamber on pedestal, accommodates chamber and be used for accommodating lens assembly；Shape memory closes
Gold thread is arranged on pedestal, and the contraction that this shape memory allow wires is produced by energising accommodates intracavity to drive
Lens assembly move preset displacement along the optical axis direction of eyeglass, and lens assembly can be made to preset position mobile
After shifting, opposite base holding position is fixed, thus prevents lens assembly from shaking produced by Power Component
And the focal length shake caused.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below
By the accompanying drawing used required in embodiment or description of the prior art is briefly described, aobvious and easy
Insight, the accompanying drawing in describing below is embodiments more of the present utility model, skill common for this area
From the point of view of art personnel, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings
Other accompanying drawing.
The structural representation of the unmanned plane that Fig. 1 provides for this utility model；
The structural representation one of the camera assembly that Fig. 2 provides for this utility model；
The exploded perspective view one of the camera assembly that Fig. 3 provides for this utility model；
The exploded perspective view two of the camera assembly that Fig. 4 provides for this utility model；
The exploded perspective view three of the camera assembly that Fig. 5 provides for this utility model；
The exploded perspective view four of the camera assembly that Fig. 6 provides for this utility model；
The structural representation two of the camera assembly that Fig. 7 provides for this utility model.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below will knot
Close the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of this utility model, and
It is not all, of embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into this utility model
The scope of protection.
The unmanned plane that this utility model embodiment provides, utilizes the energising of shape memory allow wires to come camera lens
Assembly is driven, and ensure that lens assembly will not move because of the vibrations of Power Component.
The unmanned plane that the present embodiment provides is specifically as follows unmanned vehicle, unmanned vehicle, unmanned boat etc..This
Embodiment is described in detail as a example by unmanned plane is as unmanned vehicle.Shape memory in the present embodiment closes
Gold thread is specifically as follows TiNi base marmem line, copper-based shape memory alloy line, iron-based shape note
Recalling alloy wire etc., implement form for shape memory allow wires, the present embodiment does not the most do especially
Limit.
The structural representation of the unmanned plane that Fig. 1 provides for this utility model, Fig. 2 provides for this utility model
The structural representation one of camera assembly.As it is shown in figure 1, the unmanned plane that the present embodiment provides includes: one
Fuselage 100 and be installed on camera assembly (not shown) and the Power Component 110 of fuselage 100.
Specifically, this Power Component 110 includes propeller 111 and the motor driving propeller 111 to rotate
112, to provide the lift of unmanned plane.When motor 112 drives propeller 111 to rotate, propeller 111
Quickly rotate and produce vibrations, thus cause the vibrations that unmanned plane produced by Power Component.
Alternatively, this fuselage 100 includes portion of body center 120 and extends extremely along portion of body center 120
A few horn 130.Above-mentioned Power Component 110 can be arranged on horn 130.
Alternatively, this camera assembly can include the The Cloud Terrace 140 being arranged on body, specifically, this cloud
Platform 140 is arranged on the lower section in portion of body center 120, and The Cloud Terrace 140 is provided with installation portion 141, this peace
Dress portion 141 is used for installing driving assembly.
Further, fuselage 100 includes upper shell 101 and lower house 102；Wherein,
Upper shell 101 and the involutory setting of lower house 102, define portion of body center 120 and along body
At least one horn 130 that heart portion 120 extends.
Further, unmanned plane also includes: metallic cavity (not shown) and foot rest 150；
This metallic cavity is arranged between upper shell 101 and lower house 102, and metallic cavity is used for placing electricity
Pond, foot rest 150 is arranged on the lower section of lower house 102.
Further, this unmanned plane also includes damping device (not shown), and this damping device is arranged on The Cloud Terrace
Between 140 and portion of body center 120.This damping device is specifically as follows shock-absorbing ball etc., this damping device
The high-frequency vibration run into during unmanned plane during flying can be carried out damping, and The Cloud Terrace 140 self can subtract
Remove low-frequency vibration.Therefore, only fraction high-frequency vibration can be for delivery to lens assembly, therefore, for
Lens assembly, it is only necessary to cut the high-frequency vibration of fraction.
It should be noted that Fig. 1 simply illustrates the entity structure diagram of a kind of unmanned plane in exemplary fashion,
Not being the restriction to unmanned plane structure, the structure of unmanned plane is not especially limited by this utility model.
Below in conjunction with Fig. 2, the structure of the camera assembly that this utility model provides is described in detail.As
Shown in Fig. 2, the camera assembly that the present embodiment provides, including: lens assembly 30 and driving assembly, this mirror
Head assembly 30 includes lens barrel and at least one eyeglass being arranged in lens barrel, and this driving assembly includes pedestal
10 and shape memory allow wires 20.Wherein, pedestal 10 is provided with receiving chamber 11, accommodates chamber 11
For accommodating lens assembly.Shape memory allow wires 20 is arranged on pedestal 10, the appearance of this driving assembly
Receive chamber for accommodating lens assembly 30.The contraction that this shape memory allow wires 20 is produced by energising is with band
The visibly moved lens assembly 30 receiving intracavity moves preset displacement along the optical axis direction of eyeglass, and can make lens assembly
30 after mobile preset displacement opposite base 10 holding position fix, thus prevent lens assembly 30 due to
The vibrations of Power Component and the focal length shake that causes.
In actual application, shape memory allow wires 20 is arranged on pedestal 10, and with pedestal 10
Connect.In the present embodiment, shape memory allow wires 20 can be by mode and lens assemblies such as engaging, hooks
30 connect, to drive lens assembly 30, it is also possible to for driving assembly to provide a drive division, this drive division
Including the bearing part for carrying lens assembly 30, and the connector being connected with shape memory allow wires,
To drive lens assembly 30.Especially, shape memory allow wires 20 has recoverable force ability.Shape
Memory alloy wire 20 has two kinds of phases, high-temperature-phase austenite phase, low-temperature phase martensitic phase.Shape memory closes
Gold thread 20 original state is extended state, owing to shape memory allow wires 20 has resistance, by shape
Shape memory alloys line 20 energising makes its temperature raise.Thus, shape memory allow wires 20 is sent out by martensite
Life becomes austenite, contraction in length mutually, thus drives lens assembly 30 to move pre-along the optical axis direction of eyeglass
If displacement.Further, owing to shape memory allow wires 20 is in tension, then shape memory allow wires
20 pairs of lens assemblies 30 also have fixation so that it is in the case of being given a shock, will not base relatively
Seat 10 is moved.
When shape memory allow wires 20 power-off, temperature reduces, and shape memory allow wires 20 is by austenite
Undergo phase transition as martensite.Now, the length of shape memory allow wires 20 reverts to original extended state,
Lens assembly 30 returns to initial position.
It will be understood by those skilled in the art that this preset displacement is relevant with the size of current of turn on angle, electric current
The biggest, then the amount of contraction of shape memory allow wires 20 is the biggest, and this preset displacement is the biggest.
When this driving assembly is applied to camera assembly, the present embodiment be possible not only to realize lens assembly from
The dynamic automatic focusing function focused, it is also possible to make lens assembly after focusing completes, keep focal length
Necessarily, will not be movable along with vibrations.The focusing of the present embodiment specifically refers to adjust camera lens and passes to image
Distance between sensor chip.
Specifically, shape memory allow wires 20 is energized after-contraction, and shape memory allow wires 20 drives camera lens
Assembly 30 moves preset displacement along the optical axis direction of eyeglass, and this preset displacement is specifically as follows lens assembly
The distance of present position when current location to camera lens is accurately focused.
It will be understood by those skilled in the art that during focusing and focusing, shape memory allow wires 20
Being in contraction state, simply according to the size of current of energising, the amount of contraction of shape memory allow wires 20 has
Institute is different.Such as, when on the basis of electric current A, corresponding amount of contraction is A1, and preset displacement is A11.
In one case, when electric current A, lens assembly 30 is in rear coke-like state, then control electrical current
It is made to increase, when increase electric current is to B ampere-hour (B ＞ A), and amount of contraction is B1, this B1 ＞ A1, presets
Displacement is B11, this B11 ＞ A11, i.e. relative to electric current A, lens assembly 30 moves, lens assembly
Distance between 30 range image sensor chips increases.In the case of another kind, when electric current A, camera lens
Assembly 30 is in front coke-like state, then control electrical current and make it reduce, when reduction electric current to C ampere-hour (C
＜ A), amount of contraction is C1, this C1 ＜ A1, and preset displacement is C11, this C11 ＜ A11, the most relatively
In electric current A, lens assembly 30 moves down, and the distance between lens assembly range image sensor chip reduces.
By the way, until lens assembly 30 reaches focus state, i.e. focusing accurately.The present embodiment passes through
Control the size of current of energising, it is possible to achieve the focus function of lens assembly.
It will be understood by those skilled in the art that above-mentioned focussing process available to can feed back arbitrarily front Jiao,
In the focus adjustment method of rear Jiao and focus.Alternatively, shape can be controlled by current control circuit plate to remember
Recall the size of current of alloy wire 20.Such as, burnt before current control circuit plate receives or electric current reduces
During signal, the electrical current of shape memory allow wires 20 is reduced, burnt after current control circuit plate receives
Or during the signal that electric current increases, the electrical current of shape memory allow wires 20 is increased.Alternatively, figure
As the signals such as concrete front burnt, rear Jiao can be fed back to current control circuit plate by sensor chip.Image passes
Sensor chip set-up mode, can be found in the Fig. 6 related in following enforcement.
Further, when lens assembly 30 moves preset displacement arrival focusing position, due to shape memory
Alloy wire 20 is in contraction state, then lens assembly is played solid by the contractility of shape memory allow wires 20
It is set for using so that lens assembly 30 is after focusing completes, in the case of by extraneous vibration, lens group
Part 30 is fixed with pedestal 10 holding position relatively, will not be moved, so that focusing is accurately.
Further, in the case of lens assembly 30 is by this contractility, lens assembly 30 is also subject to
The feedback control of electric current, (the error when lens assembly 30 has and has relative movement trend relative to pedestal 10
In the range of admissible displacement, this displacement focusing is fixed and imaging will not produce impact), can pass through
The size controlling electric current applies a reciprocal power, to ensure that lens assembly 30 does not moves, relative to
Pedestal 10 holding position is fixed.Simultaneously because shape memory allow wires 20 itself also exists the highest damping,
If lens assembly 30 has the trend of movement, shape memory allow wires 20 also can produce damping force, opposing
The movement of lens assembly 30.Thus, under the effect of opposite force corresponding to electric current and damping force etc., camera lens
Assembly 30 is fixed relative to pedestal 10 holding position.
Specifically he, in the present embodiment, shape memory allow wires be camber line or bending wire, and shape note
Recall the angle between alloy wire place plane and the optical axis direction of eyeglass and be more than 0 degree, and less than 90 degree.Shape
It is connected with lens assembly 30 at the bending place of shape memory alloys line 20 or radian.
By the above-mentioned setting to shape memory allow wires 20, the contraction of shape memory allow wires 20 is played
Two aspect effects, on the one hand effect is the driving force F1 producing the optical axis direction along eyeglass, on the other hand makees
With being the pressure F2 producing and extruding this lens assembly 30.Wherein, driving force F1 can drive lens assembly
30 move along the optical axis direction of eyeglass, and lens assembly 30 can be played fixation by pressure F2, prevents
Lens assembly 30 produces inclination because of centre-of gravity shift, i.e. ensures that lens assembly 30 will not produce relative to pedestal
Raw inclination.
Angle between the optical axis direction of eyeglass is more than 0 degree, and the setting less than 90 degree, so that note
Recall alloy wire and produce the least flexible L1, it is possible to lens assembly 30 is moved along the optical axis direction of camera lens
Dynamic bigger distance L2, i.e. L2 ＞ L1, thus ensure that the flexible of shape memory allow wires, permissible
Ensure the focusing requirement of lens assembly.
Use specific embodiment below, the structure of camera assembly is described in detail.Fig. 3 is this reality
Exploded perspective view one with the camera assembly of novel offer.The camera assembly that Fig. 4 provides for this utility model
Exploded perspective view two.Fig. 3 and Fig. 4 gives the schematic diagram of different visual angles camera assembly.Such as Fig. 3 and
Shown in Fig. 4, the present embodiment pedestal 10 is provided with two and is electrically connected with contact portion 12, shape memory allow wires
The two ends of 20 are electrically connected with contact portion 12 with two respectively and are connected.So, by two be electrically connected with contact portion 12 to
Shape memory allow wires 20 is energized.In it will be understood by those skilled in the art that the pedestal 10 of the present embodiment
Bury underground by electric-conductor, this electric-conductor be electrically connected with contact portion 12 and circuit board electrically connects.
Alternatively, 10 sides of pedestal are provided with avoiding hollow groove 13, and shape memory allow wires 20 is at avoiding hollow groove
Move in 13.The present embodiment is by arranging avoiding hollow groove, and the movement for shape memory allow wires 20 provides
Mobile space so that the plane of motion of shape memory allow wires 20 without departing from the surface of pedestal 10, from
And ensure that shape memory allow wires 20 will not be by external interference.
On the basis of above-described embodiment, assembly is driven also to include: drive division 40, drive division 40 is arranged
In the outside accommodating chamber 11, shape memory allow wires 20 is connected with lens assembly 30 by drive division 40,
Drive division 40, under the drive of shape memory allow wires 20, drives lens assembly 30 along the light of eyeglass
Direction of principal axis moves preset displacement.
The present embodiment i.e. achieves the company of shape memory allow wires 20 and lens assembly 30 by drive division 40
Connect.Specifically, drive division 40 is by modes such as engaging, link up with, be sheathed, it is achieved drive division 40 and mirror
The connection of head assembly 30, drive division 40 is by modes such as engaging, hooks, it is achieved drive division 40 and shape
The connection of memory alloy wire 20.
In a kind of feasible implementation, drive division 40 includes driving platform 41 and being arranged on driving platform
Connector 42 on 41.Connector 42 is connected with shape memory allow wires 20.This connector 42 is permissible
For being arranged on the hook driving platform 41 side, it is also possible to for through hole etc., this hook can tangle this shape note
Recalling alloy wire 20, shape memory allow wires 20 can pass this through hole.In the present embodiment, to connection
The specific implementation of part 42 is not particularly limited, as long as this connector 42 can connect this shape memory
Alloy wire 20.
Alternatively, such as Fig. 3 and as indicated at 4, connector 42 is the projection being arranged on and driving platform 41 side,
At least partly shape memory allow wires hook is located at the lower edge of projection.During implementing, shape memory
Alloy wire 20 hangs over the lower edge of this projection by the way of hook sets, and shape memory allow wires 20 was being shunk
Cheng Zhong, produces driving force to this projection so that this projection drives whole drive division 40 to move along the direction of optical axis
Dynamic, and drive division 40 drives lens assembly 30 to move along the direction of optical axis.Visual angle with Fig. 3 and Fig. 4
From the point of view of, i.e. drive lens assembly 30 to move up.
Alternatively, in order to increase the connective stability of drive division 40 and lens assembly 30, drive division 40 is also
Including bearing part 43, bearing part 43 is arranged in receiving chamber 11, and bearing part 43 connects with driving platform 41
Connecing, bearing part 43 is used for carrying lens assembly 30.
During implementing, bearing part 43 is specifically as follows annular bearing part, and lens assembly 30 sets
Put in this annular bearing part, and solid by the way of viscose glue between lens assembly 30 and annular bearing part
Fixed, between such lens assembly 30 and bearing part 43, position is fixed, therebetween will not be because of external force
Produce and relatively slide.In bearing part 43 moving process, bearing part 43 drives lens assembly 30 to move.
It is understood that can also be threaded connection between lens assembly 30 and bearing part 43.
In the present embodiment, by arranging drive division 40 by shape memory allow wires 20 and lens assembly 30
Connect, it is not necessary to the structure of lens assembly 30 is made and changes, improve the suitability driving assembly so that
Arbitrary camera assembly can apply this driving assembly.
On the basis of above-described embodiment, the distance phase that two are electrically connected with between contact portion 12 with drive division 40
Deng.By above-mentioned set-up mode, it is ensured that the stress equalization of lens assembly 30.
Further, bearing part 43, formation sliding cavity 50 between driving platform 41 and the sidewall of pedestal 10,
Sliding cavity 50 is provided with for reducing the sliding part 51 of frictional force between driving platform 41 and pedestal 10.
In the present embodiment, this sliding part 51 is specifically as follows slide post or rolls ball etc..The present embodiment leads to
Cross and sliding part 51 is set so that when driving platform 41 to slide relative to pedestal 10, it is not necessary to the biggest driving
Power.
With continued reference to Fig. 3 and Fig. 4, on the basis of above-described embodiment, pedestal 10 is additionally provided with spacing
Portion 60, limiting section 60 is positioned at the outside accommodating chamber 11, and limiting section 60 includes the first limit being oppositely arranged
Position plate plate 61 and the second limiting plate plate 62, and the first limiting plate 61 and the second limiting plate 62 be perpendicular to mirror
The optical axis direction of sheet, drive division 40 is arranged between the first limiting plate 61 and the second limiting plate 62.Optional
Ground, the height driving platform 41 included by this drive division 40, spacing with second less than the first limiting plate 61
Distance between plate 62, this distance and the difference of this height, be the mobile space of drive division 40.
The present embodiment, by arranging the first limiting plate 61 and the second limiting plate 62, is provided with drive division 60
Mobile space so that drive division 40 only moves between this first limiting plate 61 and second limiting plate 62,
And drive division 40 is without departing from this pedestal 10.
Alternatively, assembly is driven also to include: elastic component 70, such as spring etc., this elastic component 70 is arranged on
Between drive division 40 and the first limiting plate 61, when shape memory allow wires 20 energising is shunk, elastic component
70 are compressed.
In the present embodiment, when shape memory allow wires 20 is also not powered on, shape memory allow wires 20
For extended state, elastic component 70 is in free state or a small amount of compressive state, in the situation by extraneous vibration
Under, the elastic force effect of elastic component 70 can overcome the additional force that extraneous vibration produces so that lens assembly
30 is constant relative to pedestal 10 holding position.When shape memory allow wires 20 is energized, shape memory
Alloy wire 20 energising is shunk, and drives the distance between platform 41 and the first limiting plate 61 to reduce, elastic component
70 are in contraction state.When reducing shape memory allow wires 20 power-off or electric current, shape memory closes
Gold thread 20 extends, and drives platform 41 under the elastic force effect of elastic component 70, drives platform 41 to return in situ
Put or close to original position, thus realize focus function.
The exploded perspective view three of the camera assembly that Fig. 5 provides for this utility model.As it is shown in figure 5, this reality
Execute example on the basis of above-described embodiment, drive assembly also to include displacement transducer 71 and current control circuit
Plate 72.Displacement transducer 71 is arranged on the sidewall of pedestal 10, and displacement transducer 71 controls with electric current
Circuit board 72 electrically connects.The present embodiment is applicable to current control circuit plate 72 it has been found that lens assembly
30 when accurately focusing, the distance between lens assembly 30 range image sensor chip, corresponding following
Target location.This target location such as can be directly obtained, then by focusing modes such as contrast focusings
It is sent to current control circuit plate 72.The reality of target location cannot be obtained for current control circuit plate 72
Executing example, specifically can be found in the embodiment of above-mentioned " on the basis of electric current A ", here is omitted.
In the present embodiment, displacement transducer 71 is used for the moving displacement of detector lens assembly 30, and will
Moving displacement sends to current control circuit plate 72.Current control circuit plate 72, for according to lens assembly
The initial position of 30 and moving displacement, control the electrical current of shape memory allow wires 20, so that mirror
Head assembly 30 moves to target location.
During implementing, the current control circuit plate 72 of the present embodiment can be according to displacement transducer
71 moving displacements sent, carry out closed loop control to electrical current, to realize focussing process.This target position
When the camera lens being set in lens assembly 30 is accurately focused, lens assembly 30 location, is with camera lens
The distance of assembly 30 range image sensor chip is weighed.In like manner, following when describing position, such as
Initial position, current location, each mean when the corresponding moment, lens assembly 30 range image sensor
Distance between chip.
Displacement transducer 71 in the present embodiment can be potentiometric displacement transducer, inductance type force-displacement biography
Sensor, electric vortex type displacement sensor, magnetic inductive displacement transducer, infrared type displacement transducer etc..
It will be understood by those skilled in the art that when this displacement transducer 71 is for magnetic induction displacement transducer, such as,
Hall element, then also set up by Magnet (not shown) on the correspondence position of this bearing part 43.
Current control circuit plate 72 carries out the process of closed loop control: current control circuit plate 72 received bit
The moving displacement of the lens assembly 30 that displacement sensor 71 sends, according to the size and Orientation of this moving displacement,
And the initial position D1 of this lens assembly 30, obtain the current location D2 of this lens assembly 30, example
As, initial position is D1=0.5mm, and moving displacement is 0.2mm, and moving direction is positive direction, then when
Front position D2=0.5+0.2=0.7.Then, it is judged that current location D2 and the gap of target position D 3, example
During such as D3=0.8mm, it is determined that be currently rear Jiao, then control electrical current and make it increase to A1, logical
After electricity electric current increases to A1, the deflation amount of shape memory allow wires 20 increases, and those skilled in the art can
To understand, initial position now is D2, the movement that the received bit displacement sensor 71 of this process sends
Displacement is 0.2mm, and moving direction is positive direction, then current control circuit plate 72 determines the present bit of correspondence
Put D3=0.7+0.2=0.9.Then proceed to the gap judging current location D3 with target position D 3, the most really
It is front Jiao before settled, controls electrical current according to this gap and make it be reduced to A2, then repeat closed loop
Control process, until lens assembly 30 moves to target location.
It will be understood by those skilled in the art that above-mentioned closed loop control process is also applied to keep focus
In fixing method.I.e. displacement transducer 71 can sense the micro-displacement that lens assembly 30 produces,
This micro-displacement is the displacement that can run in the range of focus fixes time error, then displacement transducer 71 is micro-by this
Thin tail sheep is sent to current control circuit plate 72, and current control circuit plate 72 produces feedback current.Specifically
Realize process, can refer to above-described embodiment, here is omitted for the present embodiment.
Alternatively, the exploded perspective view four of the camera assembly that Fig. 6 provides for this utility model.In above-mentioned reality
On the basis of executing example, assembly is driven also to include substrate 82 and the imageing sensor core being arranged on substrate 82
Sheet 81, image sensor chip 81 electrically connects (not shown) with current control circuit plate.Further,
The structural representation two of the camera assembly that Fig. 7 provides for this utility model, as it is shown in fig. 7, camera assembly
Also including shell 90, this shell 90 is located on pedestal 10.
It is last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model,
It is not intended to limit；Although this utility model being described in detail with reference to foregoing embodiments,
It will be understood by those within the art that: it still can be to the skill described in foregoing embodiments
Art scheme is modified, or the most some or all of technical characteristic is carried out equivalent；And this
A little amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model each embodiment skill
The scope of art scheme.
Claims (23)
1. a unmanned plane, comprising: a fuselage and be installed on camera assembly and the Power Component of described fuselage, it is characterised in that described camera assembly includes lens assembly and drives assembly；Wherein,
Described lens assembly includes lens barrel and at least one eyeglass being arranged in described lens barrel；
Described driving assembly includes pedestal and shape memory allow wires；
Being provided with receiving chamber on described pedestal, described receiving chamber is used for accommodating described lens assembly；
Described shape memory allow wires is arranged on described pedestal, described shape memory allow wires shrinks to drive the described lens assembly of described receiving intracavity to move preset displacement along the optical axis direction of described eyeglass by what energising produced, and described lens assembly can be made to fix the most described pedestal holding position after mobile described preset displacement, thus the focal length shake preventing described lens assembly from shaking produced by described Power Component and causing.
Unmanned plane the most according to claim 1, it is characterised in that being provided with two on described pedestal and be electrically connected with contact portion, the two ends of described shape memory allow wires are electrically connected with contact portion with said two respectively and are connected.
Unmanned plane the most according to claim 1 and 2, it is characterized in that, described driving assembly also includes: drive division, described drive division is arranged on the outside in described receiving chamber, described drive division, under the drive of described shape memory allow wires, drives described lens assembly to move preset displacement along the optical axis direction of described eyeglass.
Unmanned plane the most according to claim 3, it is characterised in that described drive division includes driving platform and being arranged on the connector on described driving platform, and described connector is connected with described shape memory allow wires.
Unmanned plane the most according to claim 4, it is characterised in that described connector is the projection being arranged on described driving platform side, and at least part of described shape memory allow wires hook is located at the intersection of described projection and described driving platform.
6. according to the unmanned plane described in claim 4 or 5, it is characterised in that described drive division also includes that bearing part, described bearing part are arranged in described receiving chamber, and described bearing part is connected with described driving platform, and described bearing part is used for carrying described lens assembly.
Unmanned plane the most according to claim 6, it is characterised in that described bearing part, formation sliding cavity between described driving platform and the sidewall of described pedestal, is provided with in described sliding cavity for reducing the sliding part of frictional force between described driving platform and described pedestal.
Unmanned plane the most according to claim 7, it is characterized in that, it is additionally provided with limiting section on described pedestal, described limiting section is positioned at the outside in described receiving chamber, described limiting section includes the first limiting plate and the second limiting plate being oppositely arranged, and described first limiting plate and described second limiting plate are perpendicular to the optical axis direction of described eyeglass, described drive division is arranged between described first limiting plate and described second limiting plate.
Unmanned plane the most according to claim 8, it is characterized in that, described driving assembly also includes: elastic component, and described elastic component is arranged between described drive division and described first limiting plate, when the energising of described shape memory allow wires is shunk, described elastic component is compressed.
Unmanned plane the most according to claim 9, it is characterised in that described elastic component is spring.
11. unmanned planes according to claim 2, it is characterised in that the distance between the two ends of described shape memory allow wires with described drive division is equal.
12. according to the unmanned plane described in claim 1 or 2,4 or 5,7 to 11 any one, it is characterised in that the side of described pedestal is provided with avoiding hollow groove, and described shape memory allow wires moves in described avoiding hollow groove.
13. according to the unmanned plane described in claim 1 or 2,4 or 5,7 to 11 any one, it is characterized in that, described shape memory allow wires be camber line or bending angle between wire, and described shape memory allow wires place plane and described optical axis direction more than 0 degree, and be less than 90 degree.
14. according to the unmanned plane described in claim 1 or 2,4 or 5,7 to 11 any one, it is characterized in that, described driving assembly also includes displacement transducer and current control circuit plate, institute's displacement sensors is arranged on the sidewall of described pedestal, institute's displacement sensors electrically connects with described current control circuit plate, and described current control circuit plate electrically connects with described shape memory allow wires；
Institute's displacement sensors, for detecting the moving displacement of described lens assembly, and sends described moving displacement to described current control circuit plate；
Described current control circuit plate, for the initial position according to described lens assembly and described moving displacement, controls the electrical current of described shape memory allow wires, so that described lens assembly moves to target location.
15. unmanned planes according to claim 14, it is characterised in that described driving assembly also includes substrate and arranges image sensor chip on the substrate, and described substrate electrically connects with described current control circuit plate.
16. according to the unmanned plane described in claim 1 or 2,4 or 5,7 to 11,15 any one, it is characterised in that described camera assembly also includes that shell, described jacket are located on described pedestal.
17. unmanned planes according to claim 1, it is characterised in that described Power Component includes propeller and drives the motor of described propeller rotational, to provide the lift of described unmanned plane.
18. unmanned planes according to claim 17, it is characterised in that described fuselage includes portion of body center and at least one horn extended along portion of described body center, and described Power Component is arranged on described horn.
19. unmanned planes according to claim 18, it is characterised in that described camera assembly also includes: The Cloud Terrace；
Described The Cloud Terrace is arranged on the lower section in portion of described body center, and described The Cloud Terrace is provided with installation portion, and described driving assembly is arranged on described installation portion.
20. unmanned planes according to claim 19, it is characterised in that described unmanned plane also includes: damping device, described damping device is arranged between described The Cloud Terrace and portion of described body center.
21. according to the unmanned plane described in any one of claim 18 to 20, it is characterised in that described fuselage includes upper shell and lower house；Wherein,
Described upper shell and the involutory setting of described lower house, define portion of described body center and at least one horn extended along portion of described body center.
22. unmanned planes according to claim 21, it is characterised in that described unmanned plane also includes: metallic cavity and foot rest；
Described metallic cavity is arranged between described upper shell and described lower house, and described metallic cavity is used for placing battery, and described foot rest is arranged on the lower section of described lower house.
23. unmanned planes according to claim 1, it is characterised in that described unmanned plane is unmanned vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620345705.1U CN205602149U (en) | 2016-04-21 | 2016-04-21 | Unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620345705.1U CN205602149U (en) | 2016-04-21 | 2016-04-21 | Unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205602149U true CN205602149U (en) | 2016-09-28 |
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ID=56970985
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620345705.1U Expired - Fee Related CN205602149U (en) | 2016-04-21 | 2016-04-21 | Unmanned aerial vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989631A (en) * | 2017-06-02 | 2018-12-11 | 佳能株式会社 | Picture pick-up device and moving body including the driven member driven by actuator |
| WO2022141235A1 (en) * | 2020-12-30 | 2022-07-07 | SZ DJI Technology Co., Ltd. | Motor locking mechanism including memory alloy wire |
| WO2023060441A1 (en) * | 2021-10-12 | 2023-04-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Camera assembly and electrical device |
-
2016
- 2016-04-21 CN CN201620345705.1U patent/CN205602149U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989631A (en) * | 2017-06-02 | 2018-12-11 | 佳能株式会社 | Picture pick-up device and moving body including the driven member driven by actuator |
| CN108989631B (en) * | 2017-06-02 | 2021-05-11 | 佳能株式会社 | Image pickup apparatus including driven body driven by actuator, and moving body |
| US11330157B2 (en) | 2017-06-02 | 2022-05-10 | Canon Kabushiki Kaisha | Image pickup apparatus comprising driven body driven by actuator, and moving body |
| US11831970B2 (en) | 2017-06-02 | 2023-11-28 | Canon Kabushiki Kaisha | Image pickup apparatus comprising driven body driven by actuator, and moving body |
| WO2022141235A1 (en) * | 2020-12-30 | 2022-07-07 | SZ DJI Technology Co., Ltd. | Motor locking mechanism including memory alloy wire |
| WO2023060441A1 (en) * | 2021-10-12 | 2023-04-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Camera assembly and electrical device |
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Effective date of registration: 20170613 Address after: 201100 room 1032, building 555, Dongchuan Road, Minhang District, Shanghai, China Patentee after: SHANGHAI FEILAI INFORMATION TECHNOLOGY Co.,Ltd. Address before: 518057 Guangdong province Shenzhen city Nanshan District high tech Zone South Hing a No. 9 Hongkong, Shenzhen building 6 floor Patentee before: SZ DJI TECHNOLOGY Co.,Ltd. |
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