CN205168942U - Automatic regulation formula heat insulating board - Google Patents
Automatic regulation formula heat insulating board Download PDFInfo
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- CN205168942U CN205168942U CN201520829246.XU CN201520829246U CN205168942U CN 205168942 U CN205168942 U CN 205168942U CN 201520829246 U CN201520829246 U CN 201520829246U CN 205168942 U CN205168942 U CN 205168942U
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- memorial alloy
- alloy plate
- memory alloy
- cleading
- automatic adjustable
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Abstract
The utility model provides an automatic regulation formula heat insulating board, include: memory alloy board, thermal -insulated restraint board, structural framework, multi -layer insulation component, sunlight absorbing coating, the memory alloy board is including the non - curling part branch of memory alloy board, the memory alloy board curling part branch that are connected, the medial surface that the non - curling part of memory alloy board divides is connected to structural framework through thermal -insulated restraint board, the medial surface that memory alloy board curling part divides covers and is provided with multi -layer insulation component, the lateral surface that the non - curling part branch of memory alloy board, memory alloy board curling part divide all covers and is provided with sunlight absorbing coating, the medial surface that memory alloy board curling part divides covers and is provided with multi -layer insulation component. The utility model discloses can be automatically expand and curl according to the illumination intensity condition, the radiation of cooperation high emissivity has automatic passive regulation, characteristics that the equivalent emissivity is high, simultaneously the utility model discloses do not have moving part, do not have electrical components, still possess the advantage of good reliability.
Description
Technical field
The utility model belongs to spacecraft heat control field, relates to heat delivery surface control apparatus, particularly relates to a kind of automatic adjustable cleading.
Background technology
Along with the development of space technology, high rail and inclined plane satellite get more and more.The illumination angle running on the satellite heat delivery surface outside face of high rail or inclined plane changes acutely in time, causes the hot-fluid fluctuation of spacecraft area of illumination in orbital motion obviously.In order to adapt to the thermal control demand of spacecraft, the form often this type of area of illumination being processed into space radiation device carries out isothermal process.Adjusting the external swept area of space radiation device at space radiation device area of illumination by installing dissipating area control apparatus as this kind of in Thermal Control Shutter, changing the equivalent emissivity of group system with this.
Thermal Control Shutter a kind ofly utilizes the rotating blade of the low-launch-rate method of blocking the radiator surface of high emissivity in various degree, with the device regulating the combined transmit rate of heat delivery surface to control radiator surface temperature.Traditional Thermal Control Shutter system is generally made up of blade, actuator, axle and bearing, operating chamber, base plate and framework, has the passive drive formula formed with double metal spiral spring or metal bellow, also has power supply or motor-driven active matrix driving formula louver.Passive type shutter is complicated, and from standard-sized sheet to complete shut-down, need the temperature difference of 10 ~ 15 DEG C, control accuracy is poor, and regulating effect has comparatively large time delay; Active louver needs consume electric energy heating or use motor to drive, it is complicated that system comprises the train of mechanism such as motor, worm screw, poor reliability, and master cock process need artificially participates in, needing to consume electric energy valuable on star simultaneously, therefore should consider carefully when selecting.
Memory metal full name is marmem (SMA), and its memory effect is derived from the martensitic traoformation occurred in material.Found by Germany scientist Martens the earliest, until 1963, United States Navy's Armament Research Establishment is announced to have found shape memory effect in Ni-Ti B alloy wire, just attracts people's attention, and actively considers the widespread use of marmem.Marmem kind known is at present a lot, is mainly divided into Ni-Ti base marmem, Cu base marmem, Fe base marmem.Ni-Ti alloy is more much better than than copper base alloy in ductility, effcient memory intensity, dependent variable and heat-resisting ability etc., can provide larger displacement and moment and higher stability as driver element.What current marmem application development was maximum is U.S., Japan and Chinese.The U.S. mainly concentrates on aerospace field, and Japan mainly concentrates on articles for daily use field, and China concentrates on medical instruments field.
The application of table 1SMA and applicating example
Satellite antenna is one of typically early stage application example of SMA.Antenna is made up of Ni-Ti alloy, is processed into the antenna of paraboloidal at austenite phase time, and then cooling generates martensitic phase.Because SMA is easy to distortion when being in martensitic phase, so antenna folds can be kneaded into little group and put into satellite and do not take up room.After satellite enters space track, by heating or utilizing solar power to make SMA silk temperature raise, after reaching austenite transition temperature, the SMA silk being folded into little bulk is opened completely, reverts to original parabolic shape antenna.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of adaptive cooling surface area control apparatus.Compared with common louver, the utility model can carry out expansion and curling according to Illumination intensity situation automatically, coordinate the exciter of high emissivity, have the advantages that automatic passive regulates, equivalent emissivity is high, the utility model does not have movable parts simultaneously, there is no electric elements, also possess the advantage of good reliability.
According to a kind of automatic adjustable cleading that the utility model provides, comprising: memorial alloy plate, heat insulation restraining plate, structural framing, multilayer insulation assembly, sunshine absorber coatings;
Memorial alloy plate comprises the memorial alloy plate non-crimping part, the memorial alloy coiled sheet bent portions that are connected;
The medial surface of memorial alloy plate non-crimping part is connected to structural framing by heat insulation restraining plate;
The medial surface of memorial alloy coiled sheet bent portions covers and is provided with multilayer insulation assembly; Gap is there is between multilayer insulation assembly and structural framing;
The lateral surface of memorial alloy plate non-crimping part, memorial alloy coiled sheet bent portions all covers and is provided with sunshine absorber coatings;
The medial surface of memorial alloy coiled sheet bent portions covers and is provided with multilayer insulation assembly.
Preferably, memorial alloy plate is the Ni-Ti base marmem with omnidistance memory effect, and can automatically completing after reaching intrinsic phase transformation temperature points heats up launches and cooling crimping action.
Preferably, heat insulation restraining plate is fixed constraint by the face contact way of contact to memorial alloy plate non-crimping part.
Preferably, structural framing is the exciter of the outside face side plate of spacecraft or two-phase, Fluid for Single-phase Fluid Loop System.
Preferably, multilayer insulation assembly can follow memorial alloy plate development and curling.
Preferably, memorial alloy plate is made up of monoblock memory metal, without intermediate gap and frame unit.
Preferably, every layer of insulating assembly in multilayer insulation assembly is by two-sided aluminized mylar and T200A terylene net cage interval composition.
Compared with prior art, the utility model has following beneficial effect:
1, adaptivity control process of the present utility model is driven by the Ni-Ti memorial alloy with omnidistance memory effect and realizes, automatically expansion and the rolled state of louver can be adjusted according to Illumination intensity, block or open wide the exciter of coupling accordingly, change the equivalent emissivity of group system, meet the thermal control demand of spacecraft.
2, the area of illumination of memorial alloy plate of the present utility model carries out the process of high solar absorptance low emissivity coatings, the coated multilayer insulation assembly of non-crimping channel floor at the back side, can monoblock curling, compared with common louver (see table 2), there is higher equivalent emissivity.The definition of the equivalent emissivity of louver radiator system is the ratio of the black body emission from the clean heat exchange amount temperature identical with equal area having filled louver surface.
3, automatic adjustable cleading of the present utility model is compared to common louver, do not have that the support that structure causes leaks heat, operating chamber leaks heat, axle leaks to sheet leaf hot etc., slit source hot part is only there is during closedown, and when opening the external swept area of exciter substantially close to 100%, for s781 coating, equivalent emissivity is more than 0.88, and apparently higher than common louver, equivalent absorptance is more than ten times of common louver.
4, there is not the movable parts such as motor, axle, electrical equipment of common shutter in the utility model, and high reliability is another feature of the present utility model.
The contrast of the common louver of table 2 and equivalent emissivity of the present utility model and absorptance
Wherein, σ represents Si Difen-Bolzmann constant, generally gets 5.6710
-8w/m
2k
4, T represents absolute temperature, unit K.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 is heat transmission and principle of work instruction diagram.
Axial view when Fig. 2 is the expansion of automatic adjustable cleading.
Fig. 3 is the lateral plan launched.
Fig. 4 is that automatic adjustable cleading is not by rolled state lateral plan when shining.
Axial view when Fig. 5 is automatic adjustable cleading curling.
In figure: 1. memorial alloy plate, 2. heat insulation restraining plate, 3. structural framing, 4. multilayer insulation assembly, 5. sunshine absorber coatings, 101. memorial alloy plate non-crimping parts, 102. memorial alloy coiled sheet bent portions.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described in detail.Following examples will contribute to those skilled in the art and understand the utility model further, but not limit the utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.
The utility model utilizes the phase transition temperature characteristic of memorial alloy, can being heated to Automatic-expanding during phase point temperature, simultaneously can automatically restore to initial condition at low temperature again to metallographic examination, be a kind of can according to temperature traverse Automatic-expanding or curling automatic adjustable cleading.When memorial alloy plate is by when shining, reach phase point temperature, it is austenite process that low-temperature martensitic transformation occurs, and shows as memorial alloy plate development, blocks high efficient radiation device below, reduces overall externally equivalent emissivity, plays heat-blocking action to radiant panel; When memorial alloy plate is not by when shining, memorial alloy generation anti-phase process, louver automatic curled, rear portion radiant panel is not blocked, completely externally heat radiation, and equivalent emissivity reaches maximum.Launch to rely on the transformation stress of memorial alloy to produce completely with curly course, passive drive, structure is simple, good reliability.Memorial alloy plate is one piece of entirety simultaneously, compared to common louver, hot, between support and operating chamber support the leakage of slit source of not depositing between the blades is hot, therefore, with regard to the system that louver and radiant panel are formed, its equivalent emissivity is higher, compared to common louver, this device does not have movable parts, therefore better reliability, is that one can cooling surface area control apparatus efficiently and adaptively.
Particularly, the utility model discloses a kind of automatic adjustable cleading, mainly comprise memorial alloy plate 1, heat insulation restraining plate 2, structural framing 3, multilayer insulation assembly 4, sunshine absorber coatings 5 form.The utility model is characterised in that the function had according to being subject to regulate according to Self-adaptive strength exposed area area size.Meanwhile, the utility model also has higher equivalent emissivity, heat-insulating efficiency is high, reliability is high advantage.Run on the outside face illumination angle of the spacecraft of the track such as geosynchronous orbit, inclined plane with time of run acute variation, there is the thermal control difficult problem without fixing heat delivery surface.
The principle of work of the utility model device and heat transfer process such as Fig. 1 show.The utility model memorial alloy plate 1 is the memory metal with shape memory characteristic, there is the Automatic-expanding when being shone, not by the feature of initiatively closing when shining, be matched with structural framing 3 can carry out adaptively adjustment curling with deployed condition to change external swept area, and then change equivalent emissivity, meet its thermal control demand.The memorial alloy plate 1 that monoblock memory metal is formed, without intermediate gap and frame unit, has developed area large, the advantage that the equivalent radiance of payload space is high; Meanwhile, owing to not having movable parts, the utility model also has the high advantage of reliability, is a kind of adaptive cooling surface area control apparatus.Sunshine absorber coatings 5 is preferably a kind of high solar absorptance coating, and its equivalent emissivity is greater than 0.6, such as s781 coating.
More specifically, as shown in Fig. 1,2,3,4,5, a kind of automatic adjustable cleading comprises: memorial alloy plate 1, heat insulation restraining plate 2, structural framing 3, multilayer insulation assembly 4 and sunshine absorber coatings 5.Structural framing 3 both can be two-phase or Fluid for Single-phase Fluid Loop System exciter, also can be the outside face side plate of celestial body.
For fluid circuit exciter, memorial alloy plate 1 is that the Ni-Ti base memory metal with omnidistance memory effect processes, memorial alloy plate non-crimping part 101 is connected on heat insulation restraining plate 2 with face ways of contact such as splicing, and heat insulation restraining plate 2 can select the heat insulation structural parts such as fiber glass epoxy.Under rolled state, only reserved memorial alloy plate non-crimping part 101 is wanted bottom memorial alloy coiled sheet bent portions 102 to be driven to launch by according under intensity at height, carries out heat insulation to fluid circuit exciter below.For Ni-Ti base memory metal, the yield strength of parent phase is in 195 ~ 650Mpa rank, the yield strength of martensitic phase is in 70 ~ 140Mpa rank, and the area remembering golden non-crimping part 101 must be able to be provided enough transformation stresses crimping portion to be launched when shining; Contrary, curling end needs enough transformation stresses that memorial alloy plate 1 is completely curling instantaneously.The connection mode of heat insulation restraining plate 2 of the present utility model and fluid circuit exciter with to be connected as screw connect, the mode such as spot welding connects.Memorial alloy plate 1 area of illumination whole implementation height solar absorptance low emissivity coatings, as s781 coating, the coated 15 layer multi-layer insulating assemblies in crimping portion 102 back side, every layer is made up of two-sided aluminized mylar and T200A terylene net cage interval.Substantially identical for embodiment during celestial body outside face side plate, difference be heat insulation restraining plate 2 now with the connection mode of the outside face side plate of celestial body, also can be with bolts.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (7)
1. an automatic adjustable cleading, it is characterized in that, comprising: memorial alloy plate (1), heat insulation restraining plate (2), structural framing (3), multilayer insulation assembly (4), sunshine absorber coatings (5);
Memorial alloy plate (1) comprises memorial alloy plate non-crimping part (101), the memorial alloy coiled sheet bent portions (102) that are connected;
The medial surface of memorial alloy plate non-crimping part (101) is connected to structural framing (3) by heat insulation restraining plate (2);
The medial surface of memorial alloy coiled sheet bent portions (102) covers and is provided with multilayer insulation assembly (4); Gap is there is between multilayer insulation assembly (4) and structural framing (3);
The lateral surface of memorial alloy plate non-crimping part (101), memorial alloy coiled sheet bent portions (102) all covers and is provided with sunshine absorber coatings (5);
The medial surface of memorial alloy coiled sheet bent portions (102) covers and is provided with multilayer insulation assembly (4).
2. automatic adjustable cleading according to claim 1, it is characterized in that, memorial alloy plate (1) is the Ni-Ti base marmem with omnidistance memory effect, and can automatically completing after reaching intrinsic phase transformation temperature points heats up launches and cooling crimping action.
3. automatic adjustable cleading according to claim 1, is characterized in that, heat insulation restraining plate (2) is fixed constraint by the face contact way of contact to memorial alloy plate non-crimping part (101).
4. automatic adjustable cleading according to claim 1, is characterized in that, the exciter of the outside face side plate that structural framing (3) is spacecraft or two-phase, Fluid for Single-phase Fluid Loop System.
5. automatic adjustable cleading according to claim 1, is characterized in that, multilayer insulation assembly (4) can be followed memorial alloy plate (1) and be launched with curling.
6. automatic adjustable cleading according to claim 1, is characterized in that, memorial alloy plate (1) is made up of monoblock memory metal, without intermediate gap and frame unit.
7. automatic adjustable cleading according to claim 1, is characterized in that, every layer of insulating assembly in multilayer insulation assembly (4) is by two-sided aluminized mylar and T200A terylene net cage interval composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829246.XU CN205168942U (en) | 2015-10-23 | 2015-10-23 | Automatic regulation formula heat insulating board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829246.XU CN205168942U (en) | 2015-10-23 | 2015-10-23 | Automatic regulation formula heat insulating board |
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| CN205168942U true CN205168942U (en) | 2016-04-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346735A (en) * | 2015-10-23 | 2016-02-24 | 上海利正卫星应用技术有限公司 | Self-adaptive cooling face area adjusting device |
| CN106546611A (en) * | 2016-11-21 | 2017-03-29 | 云南电网有限责任公司电力科学研究院 | A kind of memorial alloy X-ray production apparatus radiator window |
| CN107628275A (en) * | 2017-07-27 | 2018-01-26 | 上海卫星工程研究所 | A kind of outer rotating mechanism relative motion face thermal controls apparatus of star |
| CN109484680A (en) * | 2018-12-21 | 2019-03-19 | 深圳航天东方红海特卫星有限公司 | A kind of radiation thermal control mechanism folded based on three Pus |
-
2015
- 2015-10-23 CN CN201520829246.XU patent/CN205168942U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346735A (en) * | 2015-10-23 | 2016-02-24 | 上海利正卫星应用技术有限公司 | Self-adaptive cooling face area adjusting device |
| CN105346735B (en) * | 2015-10-23 | 2017-10-24 | 上海利正卫星应用技术有限公司 | Adaptive cooling surface area adjusting means |
| CN106546611A (en) * | 2016-11-21 | 2017-03-29 | 云南电网有限责任公司电力科学研究院 | A kind of memorial alloy X-ray production apparatus radiator window |
| CN107628275A (en) * | 2017-07-27 | 2018-01-26 | 上海卫星工程研究所 | A kind of outer rotating mechanism relative motion face thermal controls apparatus of star |
| CN107628275B (en) * | 2017-07-27 | 2020-11-10 | 上海卫星工程研究所 | Relative motion surface thermal control device of extraterrestrial rotating mechanism |
| CN109484680A (en) * | 2018-12-21 | 2019-03-19 | 深圳航天东方红海特卫星有限公司 | A kind of radiation thermal control mechanism folded based on three Pus |
| CN109484680B (en) * | 2018-12-21 | 2021-12-14 | 深圳航天东方红卫星有限公司 | Radiant heat control mechanism based on three-pump folding |
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