CN202196248U - Automatic aperture adjusting device - Google Patents
Automatic aperture adjusting device Download PDFInfo
- Publication number
- CN202196248U CN202196248U CN2011203346874U CN201120334687U CN202196248U CN 202196248 U CN202196248 U CN 202196248U CN 2011203346874 U CN2011203346874 U CN 2011203346874U CN 201120334687 U CN201120334687 U CN 201120334687U CN 202196248 U CN202196248 U CN 202196248U
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- CN
- China
- Prior art keywords
- cup
- plectrum
- adjusting gear
- backboard
- auto iris
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
An automatic aperture adjusting device comprises an electromagnetic drive device and an aperture adjusting device. The electromagnetic drive device comprises a printed circuit board (PCB) wiring board, a cup-shaped framework connected with the PCB wiring board, a cover-shaped framework, a rotor magnetic steel located inside the cup-shaped framework, a magnetic conductive ring sleeved outside the cup-shaped framework, a magnet arranged on the outer wall of the cup-shaped framework and a spindle located in the center of the rotor magnetic steel. The aperture adjusting device comprises a base plate, a back plate, a dial piece located between the base plate and the back plate and a plurality of blades used for adjusting an aperture and arranged between the dial piece and the back plate, and the base plate, the back plate, the dial piece and the plurality of blades are mutually fixed, a lifting lever used for driving the dial piece to rotate is further fixed on the rotor magnetic steel, the cup-shaped framework, the cover-shaped framework and the back plate are sequentially fixed. The automatic aperture adjusting device is simple in structure, the adjusting device is arranged inside the electromagnetic drive device, so that shock resistance is good, demagnetization is not easy to occur under operating temperature, and service life is prolonged.
Description
Technical field
The utility model relates to a kind of regulating device, is specifically related to a kind of auto iris adjusting gear of camera lens.
Background technology
Aperture is one and is used for controlling the device that light sees through the light quantity of light-sensitive surface in the camera lens entering fuselage that it is normally in camera lens.For the camera lens of having made, we can not arbitrarily change the diameter of camera lens, but we can be through adding polygon or round in that camera lens is inner, and the poroid grating of variable area reaches the logical light quantity of controls lens, and this device just is called aperture.
The device of traditional adjustment aperture size mainly comprises drive unit and adjusting gear; Drive unit is provided with the spring return mechanism; Rotate the size of regulating aperture through the drive device drives adjusting gear, and return through spring reset mechanism, complicacy is installed in traditional aperture adjusting gear existence, the electromagnetic actuator device volume is big; And back-moving spring exposes poor impact resistance, spring is prone to produce problems such as fatigue deformation, and it is bigger that the life-span is influenced by spring fatigue.
The utility model content
Adopt back-moving spring that adjusting gear is resetted for solving existing aperture adjusting gear; Install complicated, the electromagnetic actuator device volume is big, and back-moving spring exposes poor impact resistance, spring is prone to produce fatigue deformation, influences problems such as spring serviceable life; The utility model discloses a kind of auto iris adjusting gear; Reaching simple assembly technology, and will adjust returning device and be arranged at electromagnetic actuator device inside, resistance to impact is good; Originate as returning place force with permanent magnet, increase the purpose in serviceable life.
The technical scheme of the utility model is following:
A kind of auto iris adjusting gear; Comprise electromagnetic actuator device and aperture regulating device; Said electromagnetic actuator device comprises PCB terminal block, the cup-shaped skeleton that is connected with said PCB terminal block, lid shape skeleton, be positioned at the inner rotor magnetic steel of said cup-shaped skeleton, be sheathed on the said cup-shaped skeleton outside magnetic guiding cycle, be arranged at the magnet on the said cup-shaped skeleton outer wall, and the rotating shaft that is positioned at said rotor magnetic steel center;
Said aperture regulating device comprises the base plate, the backboard that interfix, is positioned at the plectrum between said base plate and said backboard; And be arranged at some pieces of blades that are used to adjust aperture between said plectrum and the said backboard; Said blade one end is fixed on the said base plate, and the other end can move with said plectrum;
Also fixedly install on the said rotor magnetic steel and be useful on the driving lever that drives said plectrum rotation, said cup-shaped skeleton, lid shape skeleton and said backboard are fixing successively.
Preferably, also comprise said electromagnetic actuator device and the effective positioning means for positioning of said aperture regulating device.
Preferably, said locating device comprises at least one reference column that is fixedly set in said lid shape skeleton below, and is positioned at the hole clipping that is complementary with said reference column on the said backboard.
Preferably, also comprise the web member that said driving lever is fixedly connected with said plectrum.
Preferably, said plectrum one side and said driving lever corresponding position are provided with connecting hole, and said web member passes said plectrum and is fixedly connected with said driving lever bottom.
Preferably, an end of said web member is provided with the convex edge, and said convex edge size is greater than said connecting hole size.
Preferably, also be provided with the column that at least one is used for radial location on the said lid shape skeleton, said cup-shaped skeleton is provided with the pilot hole that is complementary with said column.
Preferably, also be set with drive post on the said plectrum, be provided with the adjustment hole that moves the adjusting aperture scale with said drive post mating reaction and with said drive post on said each blade.
Preferably, support component is set also on the said base plate, said support component comprises and is used to support the circular protrusion of said plectrum and be positioned at the flange that said annular projection inboard is used to support said blade.
Preferably, also be provided with on the said backboard and be used for the slotted hole that said drive post is passed, said backboard center also is provided with a gap.
The utility model discloses a kind of auto iris adjusting gear, comprise electromagnetic actuator device and aperture regulating device, through the PCB terminal block is switched on; Make coil produce torsion,, and pass through driving lever and give plectrum transmission of power around rotating shaft deflection certain angle to rotor magnetic steel; Thereby guarantee that plectrum drives many pieces of blades simultaneously to aperture light hole movement outside, it is big that stop opening becomes, when voltage reduces; When the torsion that coil produces is not enough to overcome returning place force; Rotor magnetic steel is by the absorption of the phase magnet on cup-shaped skeleton return, and many pieces of blades are simultaneously to aperture light hole central motion, and stop opening dwindles.The utility model is simple in structure, and fixed form is easy to be reliable between each parts, and return mechanism is arranged at electromagnetic actuator device inside, and resistance to impact is good, originates as returning place force with permanent magnet, has increased serviceable life.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the disclosed a kind of auto iris adjusting gear of the utility model;
Fig. 2 is the exploded view of the disclosed a kind of auto iris adjusting gear of the utility model;
Fig. 3 is the structural scheme of mechanism of the disclosed a kind of auto iris adjusting gear dorsulum of the utility model, lid shape skeleton and cup-shaped skeleton;
Fig. 4 is the structural representation of base plate in the disclosed a kind of auto iris adjusting gear of the utility model.
The title of the numeral among the figure or the corresponding component of alphabetical representative:
11, PCB terminal block 12, cup-shaped skeleton 13, lid shape skeleton 14, rotor magnetic steel 15, rotating shaft 16, magnetic guiding cycle 17, T-slot;
21, base plate 22, backboard 23, plectrum 24, blade 25, driving lever 26, through hole 27, hole clipping 28, arcuate socket 29, connecting hole 30, web member 31, convex edge 32, column 33, reference column 34, slotted eye 35, drive post 36, axle center hole 37, projection 38, circular protrusion 39, flange 40, slotted hole 41, screw hole 42, pilot hole.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model discloses a kind of auto iris adjusting gear, reaching simple assembly technology, and return mechanism is arranged at electromagnetic actuator device inside, resistance to impact is good, originates as returning place force with permanent magnet, increases the purpose in serviceable life.
Shown in Fig. 1-3; A kind of auto iris adjusting gear; Comprise electromagnetic actuator device and aperture regulating device; Electromagnetic actuator device comprises PCB terminal block 11, the cup-shaped skeleton 12 that is connected with PCB terminal block 11, lid shape skeleton 13 and the rotor magnetic steel 14 that is positioned at cup-shaped skeleton 12 inside, and rotor magnetic steel 14 inboards also are set with rotating shaft 15; Cup-shaped skeleton 12 outsides also are arranged with magnetic guiding cycle 16, and the outer wall of cup-shaped skeleton 12 is provided with T type groove 17, is used for placement positioning magnet (not looking out); When not having electric current,, make 12 on rotor magnetic steel 14 and cup-shaped skeleton attract each other because opposite pole adsorbs each other; After 11 energisings of PCB terminal block, coil produces torsion to rotor magnetic steel 14, makes it center on its inner rotating shaft 15 runnings; After outage, because the effect of attractive force, rotor magnetic steel 14 resets.Through phase magnet being arranged at electromagnetic actuator device inside, receive the protection of the magnetic guiding cycle 16 of metal material, so resistance to impact is good, permanent magnet mechanics fatigue can not occur simultaneously, has increased serviceable life.Wherein the placement positioning magnet arrangement also can be multiple shapes such as rectangle except that being the T-slot, does not specifically limit.
The aperture regulating device comprises base plate 21, the backboard 22 that interfixes and is positioned at base plate 21 and the plectrum 23 of 22 of backboards, is provided with the some pieces of blades 24 that are used to adjust aperture between plectrum 23 and the backboard 22; The axle center hole 36 of blade 24 1 ends is fixed on the projection 37 of base plate 21, and the other end is a free end, and blade 24 is provided with adjustment hole, and adjustment hole is a slotted eye 34, is set with the drive post 35 with slotted eye 34 mating reactions on the plectrum 23, and drive post 35 is passed slotted eye 34; Drive post 35 is rotated with plectrum, thereby makes it in slotted eye, to slide.
Also comprise being fixedly set in and be used to drive the driving lever 25 that plectrum 23 rotates on the rotor magnetic steel 14; Rotor magnetic steel 14 drives driving lever 25 and rotates; Driving lever 25 drives plectrum 23 and moves in a circle, thereby makes drive post 35 rotate along its place circumference, and passes through the mating reaction of slotted eye and drive post; Drive blade and inwardly outwards move, regulate the size of aperture.Wherein, the adjustment hole of blade does not specifically limit except that also can be rectangular opening etc. for the slotted eye.
Also comprise the effective positioning means for positioning of electromagnetic actuator device.Backboard 22 is provided with through hole 26, and through hole 26 and lid shape skeleton 13 are on same center line, and locating device comprises and is fixedly set at least one reference column 33 that covers shape skeleton 13 belows; And be positioned at the hole clipping 27 that is complementary with reference column 33 on through hole 26 circumference; Hole clipping quantity is symmetrically arranged 2, and hole clipping 27 quantity are consistent with reference column quantity, in addition; The quantity of hole clipping also can be 1,3 or a plurality of, does not specifically limit.Through the mating reaction of hole clipping and reference column,, prevent that it from rotating, the stability of assurance device with carrying out radial location between cup-shaped skeleton, lid shape skeleton and backboard.
Exist on the backboard 22 to be arranged at the arcuate socket 28 of driving lever 25 projections on the circumference of backboard 22, driving lever 25 passes arcuate socket 28.Also comprise the web member 30 that driving lever 25 is fixedly connected with plectrum 23.Plectrum 23 1 sides and driving lever 25 corresponding positions are provided with connecting hole 29, and web member 30 passes connecting hole 39 and is fixedly connected with driving lever 25.One end of web member 30 is provided with convex edge 31, and convex edge 31 sizes are greater than the size of connecting hole 29, prevents that plectrum 23 from deviating from; The while web member passes connecting hole and driving lever is fixed; Avoid producing contact friction between driving lever bottom and connecting hole, increased wearing quality, avoid the wearing and tearing on driving lever surface.Wherein web member 30 can be metal sleeve, and metal sleeve can spin with the bottom of driving lever or clamping, or adopts mode such as interference fit, does not specifically limit.
Cup-shaped skeleton 12, lid shape skeleton 13 are fixing successively with backboard 22.Also be provided with at least one column that is used for radial location 32 on the lid shape skeleton 13; Cup-shaped skeleton 12 is provided with the pilot hole 42 that is complementary with column 32; Mating reaction through column and pilot hole guarantees cup-shaped skeleton and the Primary Location of lid shape skeleton before fixing; After reference column 33 is matched with hole clipping 27, electromagnetic actuator device is positioned on the backboard, the back is connected cup-shaped skeleton 12, lid shape skeleton 13 through bolt or pin to be fixed with backboard 22.
Support component also is set on the base plate 21, and support component comprises and is used to support the circular protrusion 38 of plectrum 23 and is positioned at the flange 39 that circular protrusion 38 inboards are used for support blade.Plectrum 23 is rotated by 38 winding base plates of annular projection center, has reduced the friction force between plectrum and base plate to greatest extent, thereby has reduced the load of electromagnetic actuator device.Blade receives the supporting of flange 39 when motion, reduced the friction force between blade and base plate to greatest extent, thereby reduced the load of electromagnetic actuator device, increases work efficiency.
Also be provided with on the backboard 22 and be used for the slotted hole 40 that drive post 35 is passed, purpose is when preventing drive post 35 with plectrum 23 motions and backboard interferes.The backboard center also is provided with a gap, during the ND optical filter motion that is used to avoid attaching on the blade with the interference of said backboard.
Also be provided with on the backboard 22 and be connected at least one fixing screw hole 41 with base plate 21, screw hole 41 arranged outside sinking space, be used for being lower than backboard one side plane after screw head is imbedded fully.The fixed form on its dorsulum and floor also can adopt modes such as clamping or pin connection except that adopting screw retention, specifically do not limit.
The utility model discloses a kind of auto iris adjusting gear, comprise electromagnetic actuator device and aperture regulating device, through the PCB terminal block is switched on; Make coil produce torsion,, and pass through driving lever and give plectrum transmission of power around rotating shaft deflection certain angle to rotor magnetic steel; Thereby guarantee that plectrum drives many pieces of blades simultaneously to aperture light hole movement outside, it is big that stop opening becomes, when voltage reduces; When the torsion that coil produces is not enough to overcome returning place force; Rotor magnetic steel is by the absorption of the phase magnet on cup-shaped skeleton return, and many pieces of blades are simultaneously to aperture light hole central motion, and stop opening dwindles.The utility model is simple in structure, and fixed form is easy to be reliable between each parts, and return mechanism is arranged at electromagnetic actuator device inside, and resistance to impact is good, originates as returning place force with permanent magnet, has increased serviceable life.
More than be description,, make this area professional and technical personnel can realize or use the utility model through above-mentioned explanation to the disclosed embodiments to the utility model embodiment.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. auto iris adjusting gear; It is characterized in that; Comprise electromagnetic actuator device and aperture regulating device; Said electromagnetic actuator device comprises PCB terminal block, the cup-shaped skeleton that is connected with said PCB terminal block, lid shape skeleton, be positioned at the inner rotor magnetic steel of said cup-shaped skeleton, be sheathed on the said cup-shaped skeleton outside magnetic guiding cycle, be arranged at the magnet on the said cup-shaped skeleton outer wall, and the rotating shaft that is positioned at said rotor magnetic steel center;
Said aperture regulating device comprises the base plate, the backboard that interfix, is positioned at the plectrum between said base plate and said backboard; And be arranged at some pieces of blades that are used to adjust aperture between said plectrum and the said backboard; Said blade one end is fixed on the said base plate, and the other end can move with said plectrum;
Also fixedly install on the said rotor magnetic steel and be useful on the driving lever that drives said plectrum rotation, said cup-shaped skeleton, lid shape skeleton and said backboard are fixing successively.
2. auto iris adjusting gear according to claim 1 is characterized in that, also comprises said electromagnetic actuator device and the effective positioning means for positioning of said aperture regulating device.
3. auto iris adjusting gear according to claim 2 is characterized in that, said locating device comprises at least one reference column that is fixedly set in said lid shape skeleton below, and is positioned at the hole clipping that is complementary with said reference column on the said backboard.
4. according to each described auto iris adjusting gear of claim 1-3, it is characterized in that, also comprise the web member that said driving lever is fixedly connected with said plectrum.
5. auto iris adjusting gear according to claim 4 is characterized in that, said plectrum one side and said driving lever corresponding position are provided with connecting hole, and said web member passes said plectrum and is fixedly connected with said driving lever bottom.
6. auto iris adjusting gear according to claim 4 is characterized in that, an end of said web member is provided with the convex edge, and said convex edge size is greater than said connecting hole size.
7. auto iris adjusting gear according to claim 4 is characterized in that, also is provided with the column that at least one is used for radial location on the said lid shape skeleton, and said cup-shaped skeleton is provided with the pilot hole that is complementary with said column.
8. auto iris adjusting gear according to claim 4 is characterized in that, also is set with drive post on the said plectrum, is provided with the adjustment hole that moves the adjusting aperture scale with said drive post mating reaction and with said drive post on said each blade.
9. auto iris adjusting gear according to claim 4; It is characterized in that; Support component also is set on the said base plate, and said support component comprises and is used to support the circular protrusion of said plectrum and be positioned at the flange that said annular projection inboard is used to support said blade.
10. auto iris adjusting gear according to claim 4 is characterized in that, also is provided with on the said backboard to be used for the slotted hole that said drive post is passed, and said backboard center also is provided with a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203346874U CN202196248U (en) | 2011-09-07 | 2011-09-07 | Automatic aperture adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203346874U CN202196248U (en) | 2011-09-07 | 2011-09-07 | Automatic aperture adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196248U true CN202196248U (en) | 2012-04-18 |
Family
ID=45951148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203346874U Expired - Fee Related CN202196248U (en) | 2011-09-07 | 2011-09-07 | Automatic aperture adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981346A (en) * | 2011-09-07 | 2013-03-20 | 苏州新成光电器件厂 | Automatic aperture adjusting device |
| CN103034018A (en) * | 2012-12-27 | 2013-04-10 | 苏州新成光电器件厂 | Manual iris for camera |
| CN104238234A (en) * | 2014-09-15 | 2014-12-24 | 佛山市协亮光电制品有限公司 | Thermal imaging shutter motor module |
-
2011
- 2011-09-07 CN CN2011203346874U patent/CN202196248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981346A (en) * | 2011-09-07 | 2013-03-20 | 苏州新成光电器件厂 | Automatic aperture adjusting device |
| CN103034018A (en) * | 2012-12-27 | 2013-04-10 | 苏州新成光电器件厂 | Manual iris for camera |
| CN104238234A (en) * | 2014-09-15 | 2014-12-24 | 佛山市协亮光电制品有限公司 | Thermal imaging shutter motor module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120907 |