CN203673198U - Electromagnetic shutter component applied to infrared thermal imager - Google Patents
Electromagnetic shutter component applied to infrared thermal imager Download PDFInfo
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- CN203673198U CN203673198U CN201420040559.2U CN201420040559U CN203673198U CN 203673198 U CN203673198 U CN 203673198U CN 201420040559 U CN201420040559 U CN 201420040559U CN 203673198 U CN203673198 U CN 203673198U
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- fast door
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- 238000009434 installation Methods 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 4
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- 230000005389 magnetism Effects 0.000 description 1
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Abstract
The utility model relates to the shutter drive technology of an infrared thermal imager, and in particular relates to an electromagnetic shutter component applied to the infrared thermal imager. According to the utility model, the problems of shutter baffle inaction, unstable action and failed action of a shutter drive structure of the existing infrared thermal imager are solved. The electromagnetic shutter component applied to the infrared thermal imager comprises a U-shaped fixation slot, a rectangular cover plate, U-shaped iron cores, coils, a circular shaft, bar-shaped permanent magnets and the shutter baffle. Two U-shaped iron cores are symmetrically arranged in and inner cavity of the U-shaped fixation slot, and the magnetic pole positions of two U-shaped iron cores are opposite. Two coils are respectively wound in the middle of two U-shaped iron cores. Two bar-shaped permanent magnets are symmetrically arranged between the magnetic poles of two U-shaped iron cores. Two round limiting bulges are respectively fixed on outside plate faces of the rectangular cover plate. The electromagnetic shutter component provided by the utility model is suitable for the infrared thermal imager.
Description
Technical field
The utility model relates to the shutter Driving technique of thermal infrared imager, specifically a kind of electromagnetic shutter assembly for thermal infrared imager.
Background technology
At present, the shutter driving structure of thermal infrared imager is mainly divided into following three kinds: the first shutter driving structure is to adopt DC micromotor directly to drive fast door guard plate.This kind of shutter driving structure, because the driving force of DC micromotor is very little, easily causes fast door guard plate in course of action, to occur being failure to actuate or moving jiggly phenomenon.The second shutter driving structure is to adopt DC micromotor and the fast door guard plate of the common driving of accurate reducer casing.This kind of shutter driving structure, because the gear tolerance on fit of accurate reducer casing is very little, makes in the environment of temperature variation, easily because expanding with heat and contract with cold of gear causes accurate reducer casing stuck, causes thus fast door guard plate to occur the phenomenon of being failure to actuate.The third shutter driver is to adopt DC micromotor and the fast door guard plate of the common driving of spring.This kind of shutter driving structure, because the elastic force of spring can change along with temperature variation, makes in the environment of temperature variation, easily causes fast door guard plate to occur the phenomenon that action was lost efficacy.Based on this, be necessary to invent a kind of brand-new fast door drive assembly, to solve the problem of the phenomenon that the shutter driving structure of existing thermal infrared imager easily causes fast door guard plate to occur being failure to actuate, move steadily, action was lost efficacy.
Summary of the invention
The utility model easily causes the problem of the phenomenon that fast door guard plate occurs being failure to actuate, moves steadily, action was lost efficacy in order to solve the shutter driving structure of existing thermal infrared imager, a kind of electromagnetic shutter assembly for thermal infrared imager is provided.
The utility model is to adopt following technical scheme to realize: a kind of electromagnetic shutter assembly for thermal infrared imager, comprises U-shaped pickup groove, rectangle cover plate, U-iron core, coil, circular shaft, bar permanent magnet, fast door guard plate; Wherein, the both sides cell wall of U-shaped pickup groove respectively offers a vertical block button hole connecting, and two block button hole positions are just right; The interior plate face of rectangle cover plate is symmetrically fixed with two buckles, and two buckles are buckled in respectively in two block button holes; The bottom land of U-shaped pickup groove, the each symmetry of plate face of rectangle cover plate offer two vertical square mounting holes that connect; The number of U-iron core is two; Two U-iron cores are symmetricly set in the inner chamber of U-shaped pickup groove, and the position of magnetic pole of two U-iron cores is just right; The both sides external groove sidevall of each U-iron core is all respectively fixed with a square installation projection, and four square installation projections wear respectively and are fixed in four square mounting holes; The number of coil is two groups; Two groups of coils are wound in respectively the middle part of two U-iron cores; The bottom land central authorities of U-shaped pickup groove, the plate face central authorities of rectangle cover plate respectively offer a vertical circular mounting hole connecting; The two ends of circular shaft are articulated in respectively in two circular mounting holes, and the outer panel face of rectangle cover plate is stretched out in one end of circular shaft; The number of bar permanent magnet is two; Two bar permanent magnets are symmetricly set between the magnetic pole of two U-iron cores, and the opposite polarity directions of two bar permanent magnets; The surface central authorities of each bar permanent magnet all offer a vertical circular pilot hole connecting, and two circular pilot holes respectively with the two ends interference fit of circular shaft; Fast door guard plate is made up of rectangle baffle plate and pivot arm plate, and pivot arm plate extends the bight of being fixed on rectangle baffle plate; The plate face of pivot arm plate offers the fixed orifice of vertical perforation, and the external part of circular shaft wears and is fixed in fixed orifice; The outer panel face of rectangle cover plate is fixed with respectively two circular spacing preiections, and pivot arm plate is between two circular spacing preiections.
Specific works process is as follows: one,, in the time that two groups of coils are not all switched on, as shown in Figure 4, the magnetic pole of two U-iron cores does not all have magnetic, and the magnetic pole of two U-iron cores produces suction to two bar permanent magnets thus.Under the effect of suction, two bar permanent magnets rotate counterclockwise, and drive fast door guard plate to rotate counterclockwise by rotating shaft, until fast door guard plate is stopped by one of them circular spacing preiection.Now, under the effect of suction, two bar permanent magnets still have the trend rotating counterclockwise, this trend makes fast door guard plate continue to be pressed on above-mentioned circular spacing preiection, makes thus fast door guard plate under certain External Force Acting or vibration effect, can remain on current location (this position is considered as the initial position of fast door guard plate).Two, in the time passing into forward dc electricity to two groups of coils respectively, as shown in Figure 5, the magnetic pole of two U-iron cores all produces magnetic, and the magnetic pole of two U-iron cores produces repulsion to two bar permanent magnets thus.Under the effect of repulsion, two bar permanent magnets clockwise rotate rapidly, and drive fast door guard plate to clockwise rotate rapidly by rotating shaft, until fast door guard plate is stopped by another circular spacing preiection.Now, as shown in Figure 6, under the effect of repulsion, two bar permanent magnets still have the trend clockwise rotating, this trend makes fast door guard plate continue to be pressed on above-mentioned circular spacing preiection, makes thus fast door guard plate under certain External Force Acting or vibration effect, can remain on current location (this position is considered as the final position of fast door guard plate).Three, in the time stopping two groups of coil electricities, as shown in Figure 7, the magnetic pole of two U-iron cores all loses magnetism, and the magnetic pole of two U-iron cores produces suction to two bar permanent magnets thus again.Under the effect of suction, two bar permanent magnets re-start and rotate counterclockwise, and again drive fast door guard plate to rotate counterclockwise by rotating shaft, until fast door guard plate is stopped by one of them circular spacing preiection.Now, under the effect of suction, two bar permanent magnets still have the trend rotating counterclockwise, this trend makes fast door guard plate continue to be pressed on above-mentioned circular spacing preiection, makes thus fast door guard plate under certain External Force Acting or vibration effect, again remain on current location (this position is considered as the initial position of fast door guard plate).
Based on said process, compared with the shutter driving structure of existing thermal infrared imager, a kind of electromagnetic shutter assembly for thermal infrared imager described in the utility model has been realized the contactless driving of fast door guard plate by electromagnetic force (being suction and repulsion), therefore its tool has the following advantages: one, compared with the first shutter driving structure, a kind of electromagnetic shutter assembly for thermal infrared imager described in the utility model no longer adopts the DC micromotor that driving force is little to drive fast door guard plate, but drives fast door guard plate by electromagnetic force.In driving process, can increase electromagnetic force by the electric current increasing in coil, make thus driving force enough large, thereby avoided fast door guard plate occur being failure to actuate because driving force is little or move jiggly phenomenon.Its two, compared with the second shutter driving structure, a kind of electromagnetic shutter assembly for thermal infrared imager described in the utility model no longer adopts DC micromotor and accurate reducer casing to drive fast door guard plate, but drives fast door guard plate by electromagnetic force.In driving process, electromagnetic force is not acted upon by temperature changes, and has avoided thus fast door guard plate to occur the phenomenon of being failure to actuate because of expanding with heat and contract with cold of gear.Its three, compared with the third shutter driving structure, a kind of electromagnetic shutter assembly for thermal infrared imager described in the utility model no longer adopts DC micromotor and spring to drive fast door guard plate, but drives fast door guard plate by electromagnetic force.In driving process, electromagnetic force is not acted upon by temperature changes, avoided thus fast door guard plate because of the force variation of spring occur action lost efficacy phenomenon.In sum, a kind of electromagnetic shutter assembly for thermal infrared imager described in the utility model is based on brand new, the problem of the phenomenon that the shutter driving structure that efficiently solves existing thermal infrared imager easily causes fast door guard plate to occur being failure to actuate, move steadily, action was lost efficacy.
The utility model is rational in infrastructure, it is ingenious to design, and the problem of the phenomenon that the shutter driving structure that efficiently solves existing thermal infrared imager easily causes fast door guard plate to occur being failure to actuate, move steadily, action was lost efficacy, is applicable to thermal infrared imager.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structure explosive view of the present utility model.
Fig. 3 is the structural representation of circular shaft of the present utility model and bar permanent magnet.
Fig. 4 is that the first of the present utility model is used state reference map.
Fig. 5 is that the second of the present utility model uses state reference map.
Fig. 6 is that of the present utility model the third uses state reference map.
Fig. 7 is the 4th kind of the present utility model and uses state reference map.
In figure: 1-U shape pickup groove, 2-rectangle cover plate, 3-U shape iron core, 4-coil, 5-circular shaft, 6-bar permanent magnet, the fast door guard plate of 7-, 8-block button hole, 9-buckle, the square mounting hole of 10-, the square installation projection of 11-, 12-circular mounting hole, 13-fixed orifice, the circular spacing preiection of 14-; N, S represent the polarity of bar permanent magnet.
Embodiment
For an electromagnetic shutter assembly for thermal infrared imager, comprise U-shaped pickup groove 1, rectangle cover plate 2, U-iron core 3, coil 4, circular shaft 5, bar permanent magnet 6, fast door guard plate 7; Wherein, the both sides cell wall of U-shaped pickup groove 1 respectively offers a vertical block button hole 8 connecting, and two block button hole 8 positions are just right; The interior plate face of rectangle cover plate 2 is symmetrically fixed with two buckles 9, and two buckles 9 are buckled in respectively in two block button holes 8; The bottom land of U-shaped pickup groove 1, the each symmetry of plate face of rectangle cover plate 2 offer two vertical square mounting holes 10 that connect; The number of U-iron core 3 is two; Two U-iron cores 3 are symmetricly set in the inner chamber of U-shaped pickup groove 1, and the position of magnetic pole of two U-iron cores 3 is just right; The both sides external groove sidevall of each U-iron core 3 is all respectively fixed with a square installation projection 11, and four square installation protruding 11 wear respectively and are fixed in four square mounting holes 10; The number of coil 4 is two groups; Two groups of coils 4 are wound in respectively the middle part of two U-iron cores 3; The bottom land central authorities of U-shaped pickup groove 1, the plate face central authorities of rectangle cover plate 2 respectively offer a vertical circular mounting hole 12 connecting; The two ends of circular shaft 5 are articulated in respectively in two circular mounting holes 12, and the outer panel face of rectangle cover plate 2 is stretched out in one end of circular shaft 5; The number of bar permanent magnet 6 is two; Two bar permanent magnets 6 are symmetricly set between the magnetic pole of two U-iron cores 3, and the opposite polarity directions of two bar permanent magnets 6; The surface central authorities of each bar permanent magnet 6 all offer a vertical circular pilot hole connecting, and two circular pilot holes respectively with the two ends interference fit of circular shaft 5; Fast door guard plate 7 is made up of rectangle baffle plate and pivot arm plate, and pivot arm plate extends the bight of being fixed on rectangle baffle plate; The plate face of pivot arm plate offers the fixed orifice 13 of vertical perforation, and the external part of circular shaft 5 wears and is fixed in fixed orifice 13; The outer panel face of rectangle cover plate 2 is fixed with respectively two circular spacing preiections 14, and pivot arm plate is between two circular spacing preiections 14.
When concrete enforcement, described circular shaft 5 adopts 304 stainless steels to make.Described fast door guard plate 7 adopts ABS plastic to make; The plate face of described fast door guard plate 7 is coated with black cloudy surface pellosil; The thickness of described fast door guard plate 7 is 0.8mm.
Claims (3)
1. for an electromagnetic shutter assembly for thermal infrared imager, it is characterized in that: comprise U-shaped pickup groove (1), rectangle cover plate (2), U-iron core (3), coil (4), circular shaft (5), bar permanent magnet (6), fast door guard plate (7); Wherein, the both sides cell wall of U-shaped pickup groove (1) respectively offers a vertical block button hole (8) connecting, and two block button holes (8) position is just right; The interior plate face of rectangle cover plate (2) is symmetrically fixed with two buckles (9), and two buckles (9) are buckled in respectively in two block button holes (8); The bottom land of U-shaped pickup groove (1), the each symmetry of plate face of rectangle cover plate (2) offer two vertical square mounting holes (10) that connect; The number of U-iron core (3) is two; Two U-iron cores (3) are symmetricly set in the inner chamber of U-shaped pickup groove (1), and the position of magnetic pole of two U-iron cores (3) is just right; The both sides external groove sidevall of each U-iron core (3) is all respectively fixed with a square installation projection (11), and four square installation protruding (11) wear respectively and are fixed in four square mounting holes (10); The number of coil (4) is two groups; Two groups of coils (4) are wound in respectively the middle part of two U-iron cores (3); The bottom land central authorities of U-shaped pickup groove (1), the plate face central authorities of rectangle cover plate (2) respectively offer a vertical circular mounting hole (12) connecting; The two ends of circular shaft (5) are articulated in respectively in two circular mounting holes (12), and the outer panel face of rectangle cover plate (2) is stretched out in one end of circular shaft (5); The number of bar permanent magnet (6) is two; Two bar permanent magnets (6) are symmetricly set between the magnetic pole of two U-iron cores (3), and the opposite polarity directions of two bar permanent magnets (6); The surface central authorities of each bar permanent magnet (6) all offer a vertical circular pilot hole connecting, and two circular pilot holes respectively with the two ends interference fit of circular shaft (5); Fast door guard plate (7) is made up of rectangle baffle plate and pivot arm plate, and pivot arm plate extends the bight of being fixed on rectangle baffle plate; The plate face of pivot arm plate offers the fixed orifice (13) of vertical perforation, and the external part of circular shaft (5) wears and is fixed in fixed orifice (13); The outer panel face of rectangle cover plate (2) is fixed with respectively two circular spacing preiections (14), and pivot arm plate is positioned between two circular spacing preiections (14).
2. a kind of electromagnetic shutter assembly for thermal infrared imager according to claim 1, is characterized in that: described circular shaft (5) adopts 304 stainless steels to make.
3. a kind of electromagnetic shutter assembly for thermal infrared imager according to claim 1 and 2, is characterized in that: described fast door guard plate (7) adopts ABS plastic to make; The plate face of described fast door guard plate (7) is coated with black cloudy surface pellosil; The thickness of described fast door guard plate (7) is 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040559.2U CN203673198U (en) | 2014-01-23 | 2014-01-23 | Electromagnetic shutter component applied to infrared thermal imager |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040559.2U CN203673198U (en) | 2014-01-23 | 2014-01-23 | Electromagnetic shutter component applied to infrared thermal imager |
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| CN203673198U true CN203673198U (en) | 2014-06-25 |
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| CN201420040559.2U Expired - Lifetime CN203673198U (en) | 2014-01-23 | 2014-01-23 | Electromagnetic shutter component applied to infrared thermal imager |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344897A (en) * | 2014-10-24 | 2015-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Non-uniform correcting mechanism of infrared optical system |
| CN104344896A (en) * | 2014-10-24 | 2015-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Non-uniformity correction mechanism for infrared optical system |
| CN106569372A (en) * | 2016-11-14 | 2017-04-19 | 佛山市协亮光电制品有限公司 | Shutter switcher applied to infrared thermal imager technologies |
| CN109040610A (en) * | 2018-08-28 | 2018-12-18 | 合肥英睿系统技术有限公司 | Control method, apparatus, equipment, system and the medium of infrared machine core shutter state |
| CN109100023A (en) * | 2018-08-13 | 2018-12-28 | 烟台艾睿光电科技有限公司 | A kind of tripper, infrared thermal imager movement and infrared thermal imager |
| CN110349723A (en) * | 2019-07-15 | 2019-10-18 | 蔡红斌 | A kind of electromagnetic drive coil of band string magnetic core |
-
2014
- 2014-01-23 CN CN201420040559.2U patent/CN203673198U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344897A (en) * | 2014-10-24 | 2015-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Non-uniform correcting mechanism of infrared optical system |
| CN104344896A (en) * | 2014-10-24 | 2015-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Non-uniformity correction mechanism for infrared optical system |
| CN104344897B (en) * | 2014-10-24 | 2018-06-15 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of infrared optical system nonuniformity correction mechanism |
| CN106569372A (en) * | 2016-11-14 | 2017-04-19 | 佛山市协亮光电制品有限公司 | Shutter switcher applied to infrared thermal imager technologies |
| CN109100023A (en) * | 2018-08-13 | 2018-12-28 | 烟台艾睿光电科技有限公司 | A kind of tripper, infrared thermal imager movement and infrared thermal imager |
| CN109040610A (en) * | 2018-08-28 | 2018-12-18 | 合肥英睿系统技术有限公司 | Control method, apparatus, equipment, system and the medium of infrared machine core shutter state |
| CN109040610B (en) * | 2018-08-28 | 2020-10-16 | 合肥英睿系统技术有限公司 | Method, device, equipment, system and medium for controlling shutter state of infrared movement |
| CN110349723A (en) * | 2019-07-15 | 2019-10-18 | 蔡红斌 | A kind of electromagnetic drive coil of band string magnetic core |
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Granted publication date: 20140625 |