CN103186013A - Mechanical shutter - Google Patents
Mechanical shutter Download PDFInfo
- Publication number
- CN103186013A CN103186013A CN2011104444775A CN201110444477A CN103186013A CN 103186013 A CN103186013 A CN 103186013A CN 2011104444775 A CN2011104444775 A CN 2011104444775A CN 201110444477 A CN201110444477 A CN 201110444477A CN 103186013 A CN103186013 A CN 103186013A
- Authority
- CN
- China
- Prior art keywords
- magnetite
- magnetic inductive
- iron core
- shaped iron
- mechanical shutter
- Prior art date
- 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.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 27
- 230000001939 inductive effect Effects 0.000 claims description 20
- 230000000873 masking effect Effects 0.000 abstract 4
- 230000035699 permeability Effects 0.000 abstract 2
- 230000005672 electromagnetic field Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Landscapes
- Shutters For Cameras (AREA)
Abstract
The invention discloses a mechanical shutter which comprises a base and is characterized in that the base is provided with an L-shaped iron core, wherein coils are arranged on the two sides of the L-shaped iron core respectively in a winding manner; each of the two ends of the L-shaped iron core is connected with a magnetic permeability block; a notch is formed between the two magnetic permeability blocks; a magnet is arranged in the notch; a circular fixed light masking sheet is arranged in the center of the base; a circular light hole is formed in the center of the fixed light masking sheet; a movable light masking sheet covers the circular light hole; and a connecting piece extending out of one side of the movable light masking sheet is fixedly connected with the magnet. The mechanical shutter has the advantages that the mechanical shutter is simple and compact in structure and high in reliability, and can meet requirements of a small camera.
Description
Technical field
The present invention relates to the apparatus for making a video recording field, specifically a kind of mechanical shutter, particularly its physical construction.
Background technology
Shutter is the important spare part of camera, can control the time shutter of photo-sensitive cell in the camera, thereby is controlled to the readability of picture.
Mechanical shutter is the shutter device that most of traditional cameras and digital camera adopt, and it is divided into two kinds at between-lens shutter and cord shutter.Between-lens shutter claims central shutter again, and the centre between mirror is made up of 3 to 5 stalloys or the made blade of other special material, by relaxation and the leverage of spring, makes blade opening and closing simultaneously, controls the photo-sensitive cell time shutter with blade opening and closing speed.The cord shutter claims focal plane shutter again, is contained in the front that the fuselage rear wall is placed photo-sensitive cell, near focal plane.This shutter is to make with rubberized fabric or sheet metal.The speed of shutter speed is regulated according to the size of breach between the two leaf cords.When inswept picture about the cord sheet or up and down behind the shutter opening, light in moment by cord between breach be mapped on the photo-sensitive cell, make the photo-sensitive cell exposure.
Yet traditional mechanical shutter complex structure often needs respective outer side edges such as motor, lever, spring to use, thereby causes whole shutter to be difficult to miniaturization, and because complex structure also can cause reliability lower, breaks down easily.
Summary of the invention
The object of the invention is to provide a kind of simple and reliable mechanical shutter.
In order to realize this purpose, technical scheme of the present invention is as follows: a kind of mechanical shutter, comprise base, it is characterized in that being provided with a L shaped iron core at this base, at one group of coil of the both sides of this L shaped iron core difference winding, the two ends of this L shaped iron core are connected with a magnetic inductive block respectively, between these two magnetic inductive blocks, form a breach, in this breach, be provided with a magnetite, be provided with the fixedly anti-dazzling screen of a circle at the center of this base, fixedly be provided with the light hole of a circle in the center of anti-dazzling screen at this, be coated with a movable light shielding sheet at this circle light hole, a side of this movable light shielding sheet is stretched out a connection piece and is fixedlyed connected with magnetite, described two groups of coils alternately are connected with rightabout electric current, make the magnetic inductive block of magnetite both sides alternately produce the N utmost point and the S utmost point, drive magnetite and come back rotation, thereby drive movable light shielding sheet is opened and resetted.According to one embodiment of present invention, described base xsect is square, and described L shaped iron core is positioned at this foursquare adjacent both sides, and magnetic inductive block is the strip magnetic inductive block, and these two strip magnetic inductive blocks lay respectively at this foursquare other both sides.Breach between described two magnetic inductive blocks is circumferential notch, and a rotation axis is set in this breach, and described magnetite is circular magnetite, and this circle magnetite is fixed on this rotation axis, and the web member of movable light shielding sheet one side is connected with magnetite by a setting-up piece.
The rightabout electric current of electromagnetism Tie Tong of magnetite both sides, according to the right-hand screw rule, produce the magnetic field of the N utmost point and the S utmost point respectively at the electromagnetic block two ends, by magnetic inductive block the electromagnetic field that coil produces is imported magnetic inductive block, the acting force that magnetite is produced simultaneously, magnetite is deflected, drive angle of movable light shielding sheet rotation, thereby finish the disconnected purpose of mechanical shutter moment sudden strain of a muscle.The invention has the advantages that simple and compact for structurely, the reliability height can satisfy the demand of miniaturization camera.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in the figure, base 1 xsect of this mechanical shutter is a square, be provided with a L shaped iron core 2 in the adjacent both sides of this square, at one group of coil 3 of the both sides of this L shaped iron core 2 difference winding, the two ends of this L shaped iron core 2 are connected with a magnetic inductive block 4 respectively, between these two magnetic inductive blocks 4, form a circular arc cutaway, in this breach, be provided with a rotation axis 6, this rotation axis 6 is provided with a magnetite 5, be provided with the fixedly anti-dazzling screen 7 of a circle at the center of this base 1, fixedly be provided with the light hole 8 of a circle in the center of anti-dazzling screen 7 at this, be coated with a movable light shielding sheet 9 at this circle light hole 8, one side of this movable light shielding sheet is stretched out a connection piece 10, fixedlys connected with magnetite 5 in the end of this web member 10.
Principle according to the right-handed helix rule, with the coil winding on iron core, behind two groups of coil electricities, two groups of coils generate an electromagnetic field simultaneously, produce two electromagnetic fields that polarity is different respectively at two magnetic inductive blocks, this electromagnetic field deflects magnetite by producing an acting force with the N utmost point and the S utmost point of magnetite behind the magnetic inductive block, drive angle of movable light shielding sheet rotation, thereby finish the disconnected purpose of mechanical shutter moment sudden strain of a muscle.
Magnetite is in normal magnetic field, when to be exactly the iron yoke in the time of magnetic conduction power maximum vertical mutually with the magnetic field force direction, so, when two groups of coils are switched on simultaneously, the magnetic force generation power that the electric field force that produces and magnetite itself are intrinsic do the time spent, can exist the regular hour poor, in the direction of coil and magnetite is adjusted, if the certain angle of deflection just can reach gyration time ratio effect faster a little, that is to say, originally the effect of power needs 90 degree, as long as the effect of power only needs 50 degree just passable, the time of rotation can reduce, and will reduce the time of response at present for that.Therefore there is certain differential seat angle in the magnetic field on the iron core and the magnetic field of magnetite itself, can significantly reduce the velocity of rotation of anti-dazzling screen like this.For the direction of rotation originally can being returned to original initial position, can the same electric current opposite with original direction, reach the purpose that resets.
Claims (3)
1. mechanical shutter, comprise base, it is characterized in that being provided with a L shaped iron core at this base, at one group of coil of the both sides of this L shaped iron core difference winding, the two ends of this L shaped iron core are connected with a magnetic inductive block respectively, between these two magnetic inductive blocks, form a breach, in this breach, be provided with a magnetite, be provided with the fixedly anti-dazzling screen of a circle at the center of this base, fixedly be provided with the light hole of a circle in the center of anti-dazzling screen at this, be coated with a movable light shielding sheet at this circle light hole, one side of this movable light shielding sheet is stretched out a connection piece and is fixedlyed connected with magnetite, and described two groups of coils alternately are connected with rightabout electric current, make the magnetic inductive block of magnetite both sides alternately produce the N utmost point and the S utmost point, drive magnetite and come back rotation, thereby drive movable light shielding sheet is opened and resetted.
2. mechanical shutter according to claim 1, it is characterized in that: described base xsect is square, described L shaped iron core is positioned at this foursquare adjacent both sides, and magnetic inductive block is the strip magnetic inductive block, and these two strip magnetic inductive blocks lay respectively at this foursquare other both sides.
3. mechanical shutter according to claim 2, it is characterized in that: stating two breach between the magnetic inductive block is circumferential notch, one rotation axis is set in this breach, described magnetite is circular magnetite, this circle magnetite is fixed on this rotation axis, and the web member of movable light shielding sheet one side is connected with magnetite by a setting-up piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110444477.5A CN103186013B (en) | 2011-12-27 | 2011-12-27 | A kind of mechanical shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110444477.5A CN103186013B (en) | 2011-12-27 | 2011-12-27 | A kind of mechanical shutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103186013A true CN103186013A (en) | 2013-07-03 |
| CN103186013B CN103186013B (en) | 2016-06-22 |
Family
ID=48677262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110444477.5A Active CN103186013B (en) | 2011-12-27 | 2011-12-27 | A kind of mechanical shutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103186013B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037977A (en) * | 2021-03-12 | 2021-06-25 | 新思考电机有限公司 | Shutter drive device, shutter, imaging device, and electronic component |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488981A (en) * | 2002-08-30 | 2004-04-14 | 日本电产科宝株式会社 | Camera blade driving device |
| CN201075156Y (en) * | 2007-07-12 | 2008-06-18 | 微太科技股份有限公司 | Shutter device for optics photographic lens |
| CN101520589A (en) * | 2008-02-29 | 2009-09-02 | 微太科技股份有限公司 | Shutter device |
| CN101867278A (en) * | 2008-12-25 | 2010-10-20 | 太平洋贸易株式会社 | Electromagnetic drive and exposure condition switching device |
| TW201106091A (en) * | 2009-08-11 | 2011-02-16 | Hon Hai Prec Ind Co Ltd | Mechanical shutter and mobile phone using the same |
| CN102193271A (en) * | 2010-03-18 | 2011-09-21 | 鸿富锦精密工业（深圳）有限公司 | Mechanical shutter and mobile phone with same |
| US20110228373A1 (en) * | 2010-03-17 | 2011-09-22 | Hon Hai Precision Industry Co., Ltd. | Shutter device |
| US20110254993A1 (en) * | 2010-04-16 | 2011-10-20 | Canon Denshi Kabushiki Kaisha | Magnetic driver, method of manufacturing the same, light amount controller, and optical apparatus |
| CN202394021U (en) * | 2011-12-27 | 2012-08-22 | 上海比路电子有限公司 | Mechanical shutter |
-
2011
- 2011-12-27 CN CN201110444477.5A patent/CN103186013B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488981A (en) * | 2002-08-30 | 2004-04-14 | 日本电产科宝株式会社 | Camera blade driving device |
| CN201075156Y (en) * | 2007-07-12 | 2008-06-18 | 微太科技股份有限公司 | Shutter device for optics photographic lens |
| CN101520589A (en) * | 2008-02-29 | 2009-09-02 | 微太科技股份有限公司 | Shutter device |
| CN101867278A (en) * | 2008-12-25 | 2010-10-20 | 太平洋贸易株式会社 | Electromagnetic drive and exposure condition switching device |
| TW201106091A (en) * | 2009-08-11 | 2011-02-16 | Hon Hai Prec Ind Co Ltd | Mechanical shutter and mobile phone using the same |
| US20110228373A1 (en) * | 2010-03-17 | 2011-09-22 | Hon Hai Precision Industry Co., Ltd. | Shutter device |
| CN102193271A (en) * | 2010-03-18 | 2011-09-21 | 鸿富锦精密工业（深圳）有限公司 | Mechanical shutter and mobile phone with same |
| US20110254993A1 (en) * | 2010-04-16 | 2011-10-20 | Canon Denshi Kabushiki Kaisha | Magnetic driver, method of manufacturing the same, light amount controller, and optical apparatus |
| CN202394021U (en) * | 2011-12-27 | 2012-08-22 | 上海比路电子有限公司 | Mechanical shutter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037977A (en) * | 2021-03-12 | 2021-06-25 | 新思考电机有限公司 | Shutter drive device, shutter, imaging device, and electronic component |
| CN113037977B (en) * | 2021-03-12 | 2023-04-18 | 新思考电机有限公司 | Shutter driving device, shutter, imaging device, and electronic component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103186013B (en) | 2016-06-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Tianchen road Qingpu Industrial Park Qingpu District of Shanghai City, No. 2009, 201799 Patentee after: SHANGHAI B.L ELECTRONICS Co.,Ltd. Address before: Shanghai city Qingpu District Jiasong road 201711 Lane 4588 No. 18 Patentee before: SHANGHAI BILU ELECTRONIC Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Mechanical shutter Effective date of registration: 20190909 Granted publication date: 20160622 Pledgee: Anxin Agricultural Insurance Co., Ltd. Shanghai Minhang Branch Co. Pledgor: SHANGHAI B.L ELECTRONICS Co.,Ltd. Registration number: Y2019980000132 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201112 Granted publication date: 20160622 Pledgee: Anxin Agricultural Insurance Co., Ltd. Shanghai Minhang Branch Co. Pledgor: SHANGHAI B.L ELECTRONICS Co.,Ltd. Registration number: Y2019980000132 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Mechanical shutter Effective date of registration: 20220104 Granted publication date: 20160622 Pledgee: Industrial Bank Co.,Ltd. Shanghai Zhabei sub branch Pledgor: SHANGHAI B.L ELECTRONICS Co.,Ltd. Registration number: Y2022310000001 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231226 Granted publication date: 20160622 Pledgee: Industrial Bank Co.,Ltd. Shanghai Zhabei sub branch Pledgor: SHANGHAI B.L ELECTRONICS Co.,Ltd. Registration number: Y2022310000001 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A mechanical shutter Granted publication date: 20160622 Pledgee: Industrial Bank Co.,Ltd. Shanghai Zhijiang Branch Pledgor: SHANGHAI B.L ELECTRONICS Co.,Ltd. Registration number: Y2024310000018 |