A kind of single implicit type aperture
Technical field
The present invention relates to iris apparatus technical field, more particularly to a kind of single implicit type aperture.
Background technology
Aperture be one for control light through camera lens and control enter fuselage in photosurface light quantity device, it is
It is widely used in various types of cameras.The inside of camera is provided with corresponding blade, and camera mainly passes through leaf
Piece acts to realize camera unlatching, closing motion.
Existing camera is mainly acted by spring come driving blade, and due to easily broken existing for spring and uses the longevity
The short problem of life, the short defect of existing camera generally existing service life.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art and a kind of single implicit type aperture is provided, single implicit type aperture is complete
The mode of traditional Spring driving blade action, long service life are breached entirely.
To reach above-mentioned purpose, the present invention is achieved through the following technical solutions.
A kind of single implicit type aperture, includes cover plate and the base plate coordinated with cover plate, and cover plate and base plate offer confession respectively
The loophole of light penetration, forms vanes seat chamber between cover plate and base plate, can the installing of relative motion ground in vanes seat chamber
There are first blade and the second blade of arranged stacked;When aperture is closed, the first blade and the second blade draw in, and light can not be complete
Penetrate the loophole of cover plate and base plate;When aperture is opened, the first blade opens with the second blade, and light can be completely through
The loophole of cover plate and base plate;Base plate is equiped with vane drive mechanism in the position for deviateing loophole, and vane drive mechanism is located at lid
The opposition side of plate, vane drive mechanism includes bobbin and around the coil windings loaded on bobbin, and bobbin is installed in base plate,
The core of bobbin is formed in accommodating cavity, accommodating cavity and is rotatably embedded with magnet and the drive with magnet synchronization action
Lever, drive rod is provided with two actuating arms extended outside bobbin, and two actuating arms are respectively arranged with one and extend leaf
Blade driving lever in piece placing chamber, two blade driving levers respectively with corresponding first blade and the second blade drive connection.
Wherein, the bobbin includes bobbin winder bracket and coil cap, and coil cap is installed in the base plate, and bobbin winder bracket forms use
In the winding slot for installing around the coil windings, the accommodating cavity takes shape in the core of bobbin winder bracket and towards the side opening of coil cap one, coil cap lid
At opening loaded on accommodating cavity, the magnet is flush-mounted in the bottom of accommodating cavity, and side wall of the bobbin winder bracket at the opening of accommodating cavity is corresponding two
The actuating arm offers the first loose slot respectively, and two actuating arms can be intercalated in corresponding first loose slot relative motion respectively.
Drive rod is coaxially arranged with magnet.
Wherein, the coil cap correspondence bobbin winder bracket is provided with the first fixed column, and bobbin winder bracket the first fixed column of correspondence is opened
The first fixing hole is provided with, the first fixed column is intercalated in the first fixing hole.
Wherein, the coil cap correspondence base plate is provided with the second fixed column, and base plate the second fixed column of correspondence is offered
Second fixing hole, the second fixed column is intercalated in the second fixing hole.
Wherein, two blade driving levers of the base plate correspondence offer second work in the connection vanes seat chamber respectively
Dynamic groove, two blade driving levers can be intercalated in corresponding second loose slot relative motion respectively.
Wherein, first blade and the corresponding blade driving lever of the second blade correspondence offer driving lever installation respectively
Hole, two blade driving levers are intercalated in corresponding driving lever mounting hole respectively.
Wherein, base plate correspondence first blade and second blade are respectively arranged with and extend the blade peace
The lead column in chamber is put, the first blade and the corresponding lead column of the second blade correspondence offer pilot hole, lead column intercalation respectively
In in corresponding pilot hole.
Wherein, the bobbin winder bracket is fitted with the PCB electrically connected with external power source, and PCB is fitted with coil
Terminal, PCB, coil terminals and the coil windings are sequentially connected electrically.
Wherein, the periphery of the bobbin winder bracket is set with shielding iron ring.
Wherein, the cover plate and the base plate snapping.
Beneficial effects of the present invention are:A kind of single implicit type aperture of the present invention, it includes cover plate and base plate, cover plate with
The first blade and the second blade are equiped with vanes seat chamber between base plate, base plate is equiped with blade and drives in the position for deviateing loophole
Motivation structure, vane drive mechanism includes bobbin, coil windings and the magnet that is installed in the accommodating cavity of bobbin core and driving
Bar, drive rod is provided with two actuating arms extended outside bobbin, and two actuating arms are respectively arranged with one and drive corresponding first
Blade and the blade driving lever of the second blade action.Under the magneticaction in magnetic field of the earth, magnet drives drive rod to act and cause to drive
Arm is located at loophole closed position, and two blade driving levers drive the first blade and the second blade to draw in, and light can not be completely through lid
The loophole of plate and base plate;When coil windings connect low tension, coil windings produce magnetic field, the magnetic force produced by coil windings magnetic field
Effect overcomes the magneticaction in magnetic field of the earth, magnet rotors simultaneously to drive drive rod to rotate, the blade driving lever band that drive rod passes through actuating arm
Dynamic first blade and the second blade are gradually moved, and finally cause that the first blade and the second blade open, and light can be completely through lid
The loophole of plate and base plate.Summary situation understands that the present invention is acted come driving blade by way of electric magnetisation and realizes that aperture is opened
Open, closing motion, the mode of traditional Spring driving blade action is breached completely, i.e. the present invention has the advantages that long service life.
Brief description of the drawings
The present invention is further detailed below with accompanying drawing, but the embodiment in accompanying drawing is not constituted to this hair
Bright any limitation.
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation at another visual angle of the invention.
Fig. 3 is decomposing schematic representation of the invention.
Fig. 4 is the decomposing schematic representation at another visual angle of the invention.
Fig. 5 is the structural representation of bobbin winder bracket of the invention.
Fig. 6 is the structural representation of coil cap of the invention.
Fig. 7 is the structural representation of base plate of the invention.
Included in Fig. 1 to Fig. 7:
10 --- cover plate 11 --- base plate 12 --- loopholes
13 --- vanes seat chamber 20 --- the first blade 21 --- second blades
22 --- driving lever mounting hole 30 --- vane drive mechanism 31 --- bobbins
311 --- accommodating cavity 312 --- bobbin winder bracket 312a --- winding slots
313 --- coil cap 32 --- magnet 33 --- drive rods
331 --- actuating arm 332 --- blade driving lever 40 --- first fixed columns
41 --- the first fixing hole 50 --- the second fixed column 51 --- second fixing holes
60 --- the first loose slot 61 --- the second loose slot 70 --- lead columns
71 --- pilot hole 80 --- PCB 81 --- coil terminals
90 --- shielding iron ring.
Specific embodiment
With reference to specific embodiment, the present invention will be described.
As shown in Figures 1 to 4, a kind of single implicit type aperture, includes cover plate 10 and the base plate 11 coordinated with cover plate 10, lid
Plate 10 and base plate 11 offer the loophole 12 for light penetration respectively, and vanes seat chamber is formed between cover plate 10 and base plate 11
13, first blade 20 and the second blade 21 of arranged stacked can be equiped with vanes seat chamber 13 relative motion;When aperture is closed
When closing, the first blade 20 draws in the second blade 21, and light can not be completely through the loophole 12 of cover plate 10 and base plate 11;When
When aperture is opened, the first blade 20 opens with the second blade 21, and light can be completely through cover plate 10 and the printing opacity of base plate 11
Hole 12;Base plate 11 is equiped with vane drive mechanism 30 in the position for deviateing loophole 12, and vane drive mechanism 30 is located at cover plate 10
Opposition side, vane drive mechanism 30 includes bobbin 31 and around the coil windings loaded on bobbin 31(Do not show in figure
Go out), bobbin 31 is installed in base plate 11, and the core of bobbin 31 is formed and can relatively rotated in accommodating cavity 311, accommodating cavity 311
Be embedded with magnet 32 and the drive rod 33 with the synchronization action of magnet 32, drive rod 33 is provided with two and extends bobbin 31
Outer actuating arm 331, two actuating arms 331 are respectively arranged with a blade driving lever 332 extended in vanes seat chamber 13, two
Individual blade driving lever 332 respectively with the corresponding drive connection of first blade, 20 and second blade 21.
In the course of work of the present invention, due to the magneticaction in magnetic field of the earth, magnet 32 drives drive rod 33 to act and make
Obtain actuating arm 331 and be located at the closed position of loophole 12, two blade driving levers 332 drive the first blades 20 and the second blade 21 to receive
Hold together, light can not be completely through the loophole 12 of cover plate 10 and base plate 11;When coil windings connect low tension, coil windings
Magnetic field is produced, the magneticaction produced by coil windings magnetic field overcomes the magneticaction in magnetic field of the earth, magnet 32 to rotate and drive
Drive rod 33 is rotated, and drive rod 33 drives the first blade 20 and the second blade 21 gradually by the blade driving lever 332 of actuating arm 331
Mobile, and finally cause that the first blade 20 and the second blade 21 open, light can be completely through cover plate 10 and base plate 11
Loophole 12;During power-off, the magneticaction in the magnetic field of coil windings disappears, and magnet 32 resets under the magneticaction in magnetic field of the earth
And reply and so that drive rod 33 is reset to the closed position of loophole 12.
Summary situation understands, the present invention acted come driving blade by way of electric magnetisation and realize aperture open,
Closing motion, breaches the mode of traditional Spring driving blade action completely, i.e. the present invention has the advantages that long service life.
Need to be explained further, together with cover plate of the invention 10 can be assemblied in base plate 11 by the way of snapping;Certainly,
Above-mentioned assembling mode is not construed as limiting the invention, i.e., cover plate 10 and base plate 11 can also be assemblied in using other modes
Together, such as screw connection manner.
Further, as shown in Figures 3 to 6, bobbin 31 includes bobbin winder bracket 312 and coil cap 313, coil cap 313
Base plate 11 is installed in, bobbin winder bracket 312 forms the winding slot 312a for installing around coil windings, and accommodating cavity 311 takes shape in coiling
The core of frame 312 and towards the side opening of coil cap 313 1, at opening of the lid of coil cap 313 loaded on accommodating cavity 311, magnet 32 is embedded in
In the bottom of accommodating cavity 311, side wall correspondence two actuating arms 331 of the bobbin winder bracket 312 at the opening of accommodating cavity 311 are opened up respectively
There is the first loose slot 60, two actuating arms 331 can be intercalated in corresponding first loose slot 60 relative motion respectively.
During the actuating arm 331 of drive rod 33 is rotated, the first loose slot 60 is provided for corresponding actuating arm 331
Activity space;Meanwhile, the side wall of the first loose slot 60 corresponding actuating arm 331 is carried out it is spacing, when coil windings are not powered on,
Actuating arm 331 is located at the closed position of loophole 12 and against the wherein side wall of corresponding first loose slot 60;Work as coil windings
Be powered and actuating arm 331 be located at 12 full open position of loophole when, actuating arm 331 is another against corresponding first loose slot 60
Side wall.
Drive rod of the invention 33 is coaxially arranged with magnet 32, wherein, drive rod 33 can be by the way of being spirally connected and magnetic
Iron 32 is connected together;Certainly, above-mentioned connected mode is not construed as limiting the invention.
Further, the blade driving lever 332 of actuating arm 331 is through base plate 11 and extends between base plate 11 and cover plate 10
Vanes seat chamber 13 in, to ensure that blade driving lever 332 has enough activity spaces, two blades of correspondence of base plate of the invention 11
Driving lever 332 offers second loose slot 61 in connection vanes seat chamber 13 respectively, and two blade driving levers 332 respectively can relative motion
Be intercalated in corresponding second loose slot 61.
Need to be explained further, as shown in Fig. 3 to Fig. 7, the correspondence bobbin winder bracket 312 of coil cap 313 is provided with the first fixed column 40,
The first fixed column 40 of correspondence of bobbin winder bracket 312 offers the first fixing hole 41, and the first fixed column 40 is intercalated in the first fixing hole 41;
Likewise, the correspondence base plate 11 of coil cap 313 is provided with the second fixed column 50, the second fixed column 50 of correspondence of base plate 11 offers second
Fixing hole 51, the second fixed column 50 is intercalated in the second fixing hole 51.
The side that coil cap of the invention 313 and bobbin winder bracket 312 are engaged by the first fixed column 40 with the first fixing hole 41
Formula is assemblied in together, likewise, coil is somebody's turn to do and base plate 11 is by way of the second fixed column 50 is engaged with the second fixing hole 51
It is assemblied in together;Above-mentioned assembling mode has the advantages that accurate positioning and easy to assembly.
The blade driving lever 332 of actuating arm 331 drives the blade 21 of corresponding first blade 20 and second in vanes seat chamber 13
Interior activity, specifically:First blade 20 and the corresponding blade driving lever 332 of the correspondence of the second blade 21 offer driving lever mounting hole respectively
22, two blade driving levers 332 are intercalated in corresponding driving lever mounting hole 22 respectively;The present invention passes through blade driving lever 332 and driving lever
Cooperation between mounting hole 22 is linked with the blade 21 of corresponding first blade 20 and second realizing actuating arm 331.
In addition, to ensure that the first blade 20 is moved exactly with the second blade 21 in vanes seat chamber 13, it is of the invention
The first blade 20 of correspondence of base plate 11 and the second blade 21 are respectively arranged with the lead column 70 extended in vanes seat chamber 13, first
The corresponding lead column 70 of the correspondence of 20 and second blade of blade 21 offers pilot hole 71 respectively, and lead column 70 is intercalated in be led accordingly
To in hole 71.As shown in figs. 4 and 7, the first blade 20 of correspondence of base plate of the invention 11 and the second blade 21 are respectively arranged with two
Individual lead column 70, accordingly, the first blade 20 and the second blade 21 also offer two pilot holes 71 respectively;Certainly, it is above-mentioned to lead
It is not construed as limiting the invention to the quantity of post 70 and pilot hole 71.The present invention passes through lead column 70 and corresponding pilot hole
71 coordinate to realize that the first blade 20 and the second blade 21 are accurately smoothly moved.
Used as preferred embodiment, as shown in Fig. 1, Fig. 3 and Fig. 4, bobbin winder bracket 312 is fitted with and is electrically connected with external power source
The PCB 80 for connecing, PCB 80 is fitted with coil terminals 81, PCB 80, coil terminals 81 and coil around
Group is sequentially connected electrically.
Need to be explained further, to avoid external magnetic field that influence is produced on magnet 32, the present invention is in the periphery set of bobbin winder bracket 312
Equipped with shielding iron ring 90.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to of the invention
Thought, will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Limitation.