CN208344553U - A kind of earth sensor radiation shield - Google Patents
A kind of earth sensor radiation shield Download PDFInfo
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- CN208344553U CN208344553U CN201820834926.4U CN201820834926U CN208344553U CN 208344553 U CN208344553 U CN 208344553U CN 201820834926 U CN201820834926 U CN 201820834926U CN 208344553 U CN208344553 U CN 208344553U
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- multilayer
- radiation shield
- boom
- earth sensor
- ground
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Abstract
The utility model discloses a kind of earth sensor radiation shields, including the quick radiation shield frame in ground, side panel, rear panel, front panel, the first multilayer boom, the second multilayer boom, the through-hole for assembling side panel, rear panel, front panel is distributed on the quick radiation shield frame in ground, upper part is for stretching out earth sensor probe, OSR piece is pasted on the outside of front panel, first multilayer boom, the second multilayer boom are fixedly connected on the quick radiation shield frame in the ground on the inside of front panel, it is laid with multilayer insulation component at multilayer boom, incident sunlight is reflected.
Description
Technical field
The utility model relates to a kind of earth sensor radiation shield, it is applied to the general assembly of spacecraft totality and thermal control technology is led
Domain.
Background technique
Earth sensor is attitude measurement component crucial on star, the reliability of work to satellite gravity anomaly play to
Close important role.It due to earth sensor layout reasons, that is, is usually mounted to outside satellite, to guarantee earth sensor optics
The measurement accuracy of system needs to carry out thermal control design to it, while meeting setting angle and visual field requires, guarantees that the earth is quick
The operating temperature of sensor is in a certain range.Combine loss of weight demand and general assembly operability.
Utility model content
The technology of the utility model solves the problems, such as: in order to overcome the deficiencies of the prior art, providing a kind of anti-spoke of earth sensor
Cover is penetrated, while meeting setting angle and visual field requires, guarantees the operating temperature of earth sensor in a certain range.
The technical solution of the utility model:
A kind of earth sensor radiation shield, including the quick radiation shield frame in ground, side panel, rear panel, front panel, first
Multilayer boom, the second multilayer boom, on the quick radiation shield frame in ground distribution for assemble side panel, rear panel, front panel it is logical
Hole, upper part paste OSR piece, the first multilayer boom, the second multilayer boom on the outside of front panel for stretching out earth sensor probe
It is fixedly connected on the quick radiation shield frame in ground on the inside of front panel, multilayer insulation component is laid at multilayer boom, to incidence
Sunlight is reflected.
Each two of first multilayer boom, the second multilayer boom.
Auricle is on the quick radiation shield in ground with a thickness of 2-5mm.
The quick radiation shield frame in ground uses aluminium chassis formula structure.
The utility model has the following beneficial effects: compared with prior art
(1) the utility model is by reducing heat radiation of the Orbital heat flux to star sensor to blocking for earth sensor, meanwhile,
The heat of earth sensor is discharged into cold space by radiation mode by illuminating surface external pasting OSR piece, and is stretched in multilayer
Heat-control multilayer component is coated at bar, is reached to earth sensor thermal control implementation result, operation is simple and feasible；
(2) the utility model solves other heat loss through conduction mode low efficiencys, installation accuracy requires high, assembly complexity etc. to lack
Point provides novel thermal control measure for earth sensor, can guarantee that its in-orbit temperature is in operating temperature range and has foot
Enough temperature control surpluses.
Detailed description of the invention
Fig. 1 for the utility model quick radiation shield structure chart；
Fig. 2 for the utility model quick radiation shield bulk junction composition.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Due to the daily alternation variation of earth sensor Orbital heat flux, and itself thermal inertia is smaller, therefore the diurnal variation of its temperature
It is larger, to guarantee that earth sensor can work within the specified temperature range, provide a kind of novel earth sensor thermal control
Mode, that is, in conjunction with the heater and temperature control thermistor for being pasted onto earth sensor surface, carried out in external ball sensor over the ground
The temperature control measures such as heat dissipation, reflective, configuration is simple, easy for installation, the specific scheme is that
The quick radiation shield in the utility model ground, as shown in Figure 1, including quick radiation shield frame 1, side panel 11, below
Plate 13, front panel 16, the first multilayer boom 9, the second multilayer boom 14 composition.
The quick radiation shield frame 1 in ground is hexahedron aluminium chassis, 8, two sides 3, top before the quick radiation shield frame 1 in ground
Face 6, the below 5 a certain number of M3 through-holes 2 of distribution, for assembling each panel.Top surface 6 is for stretching out earth sensor probe.
After pasting the silver-plated second surface mirror OSR piece 10 of cerium glass on the outside of front panel 16, it is mounted on by 10 M3 screws 15
On front 8.
Two pieces of side panels 11 are mounted on two sides 3 by 4 M3 rivets 12 respectively.
Rear panel 13 is mounted on next 5 by 9 M3 rivets 12.
Two the first multilayer booms, 9, two the second multilayer booms 14 be welded in front 8 inside.
As shown in Fig. 2, the quick radiation shield auricle in ground with a thickness of 4mm, is distributed 8 M4 through-holes, i.e., quick radiation protection on bottom surface 7
The mounting hole of cover.The quick radiation shield component in ground passes through mounting hole entirely through screw and connect with earth sensor bracket.
The OSR performance degradation of the quick radiation shield in base area, Orbital heat flux incident angle, to factors such as floor temperature levels,
It is total to calculate 5 operating conditions, it is shown in Table 1.
Table 1 calculates operating condition
By the calculating to above 5 operating conditions, calculated result is as shown in table 2.
2 calculated result of table
As shown in Table 2, in worst hot case, ground is quick 15.8 DEG C of surplus apart from the operating temperature upper limit.In worst cold case
When, in the case where heater is normally opened, the quick minimum temperature in ground has 57 DEG C or more surpluses apart from operating temperature lower limit, therefore heats
Device power is enough.
Show that the design of earth sensor radiation shield can guarantee its in-orbit temperature by the heat analysis to earth sensor
Degree is in operating temperature range and has enough temperature control surpluses, designs reasonable.
The utility model by reducing heat radiation of the Orbital heat flux to star sensor to blocking for earth sensor, meanwhile, lead to
It crosses illuminating surface external pasting OSR piece and the heat of earth sensor is discharged into cold space by radiation mode, and in multilayer boom
Place's cladding heat-control multilayer component, reaches to earth sensor thermal control implementation result, operation is simple and feasible.
The content being not described in detail in the utility model specification belongs to the well-known technique of professional and technical personnel in the field.
Claims (4)
1. a kind of earth sensor radiation shield, which is characterized in that including the quick radiation shield frame (1) in ground, side panel (11), after
Panel (13), front panel (16), the first multilayer boom (9), the second multilayer boom (14), on the quick radiation shield frame (1) in ground point
Cloth is used to assemble the through-hole of side panel (11), rear panel (13), front panel (16), and upper part is for stretching out earth sensor spy
OSR piece is pasted in head, front panel (16) outside, and the first multilayer boom (9), the second multilayer boom (14) are fixedly connected on front panel
(16) on the quick radiation shield frame (1) in ground on the inside of, it is laid with multilayer insulation component at multilayer boom, incident sunlight is carried out anti-
It penetrates.
2. a kind of earth sensor radiation shield as described in claim 1, which is characterized in that the first multilayer boom (9), second
Multilayer boom (14) each two.
3. a kind of earth sensor radiation shield as described in claim 1, which is characterized in that auricle is thick on the quick radiation shield in ground
Degree is 2-5mm.
4. a kind of earth sensor radiation shield as described in claim 1, which is characterized in that the quick radiation shield frame (1) in ground
Using aluminium chassis formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820834926.4U CN208344553U (en) | 2018-05-31 | 2018-05-31 | A kind of earth sensor radiation shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820834926.4U CN208344553U (en) | 2018-05-31 | 2018-05-31 | A kind of earth sensor radiation shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208344553U true CN208344553U (en) | 2019-01-08 |
Family
ID=64891508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820834926.4U Active CN208344553U (en) | 2018-05-31 | 2018-05-31 | A kind of earth sensor radiation shield |
Country Status (1)
| Country | Link |
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| CN (1) | CN208344553U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677641A (en) * | 2019-01-17 | 2019-04-26 | 上海卫星工程研究所 | A kind of satellite cooling device that type body dress sun shell is thermally isolated |
| CN109870050A (en) * | 2019-02-26 | 2019-06-11 | 中国科学院高能物理研究所 | A kind of installation method of low-temperature deep heat pipe and the assembly method of low energy detector |
| CN109927939A (en) * | 2019-02-14 | 2019-06-25 | 上海卫星工程研究所 | Spacecraft exposed component thermal controls apparatus out of my cabin |
| CN110005672A (en) * | 2019-04-04 | 2019-07-12 | 北京卫星制造厂有限公司 | A kind of special-shaped structure piece outer surface stickup OSR blade technolgy design method |
-
2018
- 2018-05-31 CN CN201820834926.4U patent/CN208344553U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677641A (en) * | 2019-01-17 | 2019-04-26 | 上海卫星工程研究所 | A kind of satellite cooling device that type body dress sun shell is thermally isolated |
| CN109927939A (en) * | 2019-02-14 | 2019-06-25 | 上海卫星工程研究所 | Spacecraft exposed component thermal controls apparatus out of my cabin |
| CN109870050A (en) * | 2019-02-26 | 2019-06-11 | 中国科学院高能物理研究所 | A kind of installation method of low-temperature deep heat pipe and the assembly method of low energy detector |
| CN110005672A (en) * | 2019-04-04 | 2019-07-12 | 北京卫星制造厂有限公司 | A kind of special-shaped structure piece outer surface stickup OSR blade technolgy design method |
| CN110005672B (en) * | 2019-04-04 | 2020-09-18 | 北京卫星制造厂有限公司 | Process design method for sticking OSR sheet on outer surface of special-shaped structural member |
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