CN109828621A - A kind of thermal control structure of ultralow temperature low energy detector - Google Patents
A kind of thermal control structure of ultralow temperature low energy detector Download PDFInfo
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- CN109828621A CN109828621A CN201910141771.5A CN201910141771A CN109828621A CN 109828621 A CN109828621 A CN 109828621A CN 201910141771 A CN201910141771 A CN 201910141771A CN 109828621 A CN109828621 A CN 109828621A
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- low energy
- collimator
- energy detector
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Abstract
The present invention provides a kind of thermal control structures of ultralow temperature low energy detector, comprising: low energy detector lower case；Low energy detector upper case, low energy detector upper case include mounting plate and are fixedly connected with hood on a mounting board, wherein the fluting for accommodating collimator and detector are offered on mounting plate, fluting is separated by multiple separation ribs；Detector, detector are fixedly mounted in the fluting of mounting plate；Collimator, collimator are mounted in fluting, and collimator overlays on detector；Upper plate is simulated, mounting plate is fixed on simulation upper plate, and is simulated upper plate and separated low energy detector lower case and low energy detector upper case；U-shaped heat pipe, the U-shaped bottom of U-shaped heat pipe, which is uniformly laid on, to be separated on rib, and the both ends that U-shaped heat pipe upwardly extends extend along hood inner wall；And L-type heat pipe, one end of L-type heat pipe, which is uniformly laid on, to be separated on rib, and one end that L-type heat pipe upwardly extends extends along hood inner wall.
Description
Technical field
The present invention relates to low energy detector thermal control technical field, in particular to a kind of thermal control knot of ultralow temperature low energy detector
Structure.
Background technique
LE(low-energy) thermal control is a very important key technology, meaning for low energy X ray telescope
It is that thermal control guarantees low temperature required for LE detector SCD is worked normally, guarantees that heating avoids pollution problem after SCD enters the orbit, also
Guarantee the higher start-up temperature of LE detector cabinet electronics.SCD detector is functional within the scope of -80 DEG C ~ -45 DEG C of low temperature
And stablize, when temperature is more than -45 DEG C, dark current can be obviously increased, and detector energy, which is differentiated, to be deteriorated.SCD encapsulation is not complete
Closing, and SCD is more sensitive to pollutant, needs to guarantee that SCD is heated first after satellier injection by thermal control, avoids because low
Temperature and adsorb pollutant.LE detector lower case is due to taking heat loss through radiation processing, its temperature can be lower than after satellier injection
The minimum start-up temperature (- 40 DEG C) of electronics needs to guarantee that electronics start-up temperature is greater than -40 DEG C by thermal control.
Thermal control technological difficulties are: 1, orbit external thermal flux bad environments: firstly, LE detector is laid out the low temperature outside star
It is required that -80 DEG C ~ -45 DEG C external changes of heat flux are very sensitive, and the orbit altitude that HXMT satellite is chosen only seeing by 550km, load
The earth suffered by survey device is infrared and reflection of light Orbital heat flux is ill-conditioned, especially earth infrared heat flow.Currently, external similar
The high orbit of the most 7000km or more of X-ray astronomical satellite avoids the earth infrared and the influence of reflection of light Orbital heat flux, or adopts
The low temperature requirements of detector are realized with the active refrigeration to detector part thermoelectric cooling.It is only capable of at present in HXMT satellite using quilt
It is extremely difficult to the thermal control design of LE low temperature requirements in the case where dynamic heat loss through radiation thermal control measure.
2, multi-load one mounting arrangement: for HXMT Satellite Payloads, in order to guarantee that detector required precision will
HE, ME and LE detector that different temperatures requires are installed concentratedly on the same main supporting structure, maximum temperature index request
Difference reaches 70 DEG C.Thermal coupling is very strong between the load that multi-load one mounting arrangement requires different temperatures, and ties meeting
Under the premise of structure strength and stiffness, the provision for thermal insulation being able to achieve is limited, this meets temperature to HE, ME and LE three classes detector simultaneously
It is required that proposing bigger difficulty.
3, orbit external thermal flux variation is extremely complex: HXMT satellite there are mainly two types of operating mode, i.e., sky patrol mode and
Ocean weather station observation mode, both modes ratio shared by satellite their entire life are about respectively 50%.Satellite works at this two kinds
Attitudes vibration multiplicity under mode, the Orbital heat flux variation that load is subject to is considerably complicated, especially for ocean weather station observation mode, foundation
The observation time of observer target is several days, there is a situation where that the earth suffered by LE is infrared and reflection of light Orbital heat flux is very severe.
Meanwhile HXMT satellite uses the inclined plane of domestic satallite less, the in-orbit variation range in the angle β is further increased at 120 ° or more
The earth suffered by LE is infrared and the complex situations of reflection of light Orbital heat flux.All to thermal control design, more stringent requirements are proposed for these.
4, payload temperature stability requirement: LE detector is that a kind of state that approximation is exposed is in outside star,
Under the complicated Orbital heat flux state of HXMT satellite, if not taking effective thermal control measure, the temperature of LE detector is inevitably resulted in
Fluctuation is more than required temperature range.
5, detector and electronics heating requirements: LE detector needs to guarantee that its temperature is high by heating after satellier injection
In other part temperatures around, will not be adsorbed on LE detector in the volatilization of other component contamination objects.Due to LE detector sheet
Body has carried out good thermally conductive and heat dissipation thermal control measure, lower than the temperature of the other components of surrounding when temperature works normally.If
Needing to heat LE detector makes its temperature drift then need higher power consumption, while needing heating tape as close as possible to detector.LE
Detector lower case outer wall has heat loss through radiation coating at present, plays auxiliary heat dissipation function, mitigates and leaks heat to detector upper case.But
It is that LE detector lower case electronics is needed in -40 DEG C or more ability normal boot-strap work, so needing heating in advance.These are all
Carry out very big difficulty for LE thermal control adhesive coating, needs many-sided coordination that can just meet the requirements.
6, Cryo Heat Tube: it is main thermally conductive by heat pipe in current scheme, but Cryo Heat Tube (being lower than -60 DEG C) at present
Experience of not going up to the sky needs to solve the capacity of heat transmission of Cryo Heat Tube by tackling key problem and reliability is asked without reliable matured product
Topic.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of thermal control structures of ultralow temperature low energy detector, to overcome the prior art
Disadvantage.
The present invention provides a kind of thermal control structure of ultralow temperature low energy detector, the thermal control knots of the ultralow temperature low energy detector
Structure includes:
Low energy detector lower case；
Low energy detector upper case, low energy detector upper case include mounting plate and are fixedly connected with shading on a mounting board
Cover, wherein the fluting for accommodating collimator and detector is offered on mounting plate, fluting is separated by multiple separation ribs；
Detector, detector are fixedly mounted in the fluting of mounting plate；
Collimator, collimator are mounted in fluting, and collimator overlays on detector；
Upper plate is simulated, mounting plate is fixed on simulation upper plate, and is simulated upper plate and detected low energy detector lower case and low energy
Device upper case separates；
U-shaped heat pipe, the U-shaped bottom of U-shaped heat pipe, which is uniformly laid on, to be separated on rib, and the both ends that U-shaped heat pipe upwardly extends are along shading
Cover inner wall extends；And
L-type heat pipe, one end of L-type heat pipe, which is uniformly laid on, to be separated on rib, and one end that L-type heat pipe upwardly extends is along in hood
Wall extends.
Preferably, in above-mentioned technical proposal, wherein the inner surface of hood is handled by black anodizing, hood
Outer surface be provided with second surface mirror coating.
Preferably, in above-mentioned technical proposal, wherein hood further include: grid reinforcing rib, grid reinforcing rib are fixed on screening
On the side wall of light shield；Thermistor, thermistor are attached on the inner surface of hood；And whole day detects form hole, whole day
Detection form hole is provided with the side of hood.
Preferably, in above-mentioned technical proposal, collimator is provided with multiple, and collimator is long collimator or short collimation
Device, wherein having a collimator in multiple collimators is short collimator.
Preferably, in above-mentioned technical proposal, wherein long collimator comprises the following structure: long collimator work department, wherein
The upper surface of long collimator work department is parallel to each other with lower surface；Tantalum piece, tantalum piece are centered around long collimator work department circumferential lateral surface；
Photomask, photomask are set to long collimator work department top surface；And photomask press box, photomask press box be pressed on photomask it
On.
Preferably, in above-mentioned technical proposal, wherein short collimator comprises the following structure: short collimator work department, wherein
Short collimator work department has taper reinforcing rib；Photomask, photomask are set to short collimator work department top surface；And photomask
Press box, photomask press box are pressed on photomask.
Preferably, in above-mentioned technical proposal, wherein mounting plate is fixedly connected with hood by multiple screws, in screw
Polyimides heat insulating mattress is provided between the contact surface of mounting plate.
Preferably, in above-mentioned technical proposal, the thermal control structure of ultralow temperature low energy detector includes: block, and block is L-shaped,
One end of block is fixedly connected by screw with simulation upper plate, and the other end of block connects by the way that the side of screw and mounting plate is fixed
It connects.
Preferably, in above-mentioned technical proposal, low energy detector lower case outer surface is coated with white paint.
Compared with prior art, the thermal control structure of ultralow temperature low energy detector of the invention has the following beneficial effects: needle
And integral structure installation, Orbital heat flux severe and variation complicated thermal control big to each payload temperature index span of HXMT satellite are set
Difficult point is counted, in conjunction with the topology layout feature of LE, and according to analysis result, it is overall to have formulated payload thermal control of the invention
Mentality of designing: the LE for being installed on load main structure upper plate is directly exposed to outside star, on the basis of itself and HE provision for thermal insulation
On, recycle its hood and electronic cabinet shell to carry out radiation refrigeration as radiating surface, while in the main structure that LE is in contact
Increase radiating surface to reduce the fiducial temperature of the installation region LE, the low temperature requirements of Lai Shixian LE.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the low energy detector of an embodiment according to the present invention；
Fig. 2 is the heat pipe of an embodiment according to the present invention and the schematic diagram of internal structure of mounting plate；
Fig. 3 is the structural schematic diagram of the hood of an embodiment according to the present invention；
Fig. 4 is the structural schematic diagram of the long collimator of an embodiment according to the present invention；
Fig. 5 is the structural schematic diagram of the short collimator work department of an embodiment according to the present invention.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
As shown in Figs. 1-5, the thermal control structure of the ultralow temperature low energy detector of the preferred embodiment for the present invention includes: that low energy is visited
Survey device lower case 101；Low energy detector upper case, low energy detector upper case include mounting plate 102 and are fixedly connected on peace
Hood 103 in loading board, wherein offer the fluting for accommodating collimator and detector on mounting plate, slot by multiple
Separate rib 201 to separate；Detector 202, detector is fixedly mounted in the fluting of mounting plate；Collimator, collimator are mounted on
In fluting, and collimator overlays on detector；Upper plate 104 is simulated, mounting plate is fixed on simulation upper plate, and is simulated
Upper plate separates low energy detector lower case and low energy detector upper case；U-shaped heat pipe 105, the U-shaped bottom of U-shaped heat pipe are equal
Even be laid on separates on rib, and the both ends that U-shaped heat pipe upwardly extends extend along hood inner wall；And L-type heat pipe 106, L-type heat
One end of pipe, which is uniformly laid on, to be separated on rib, and one end that L-type heat pipe upwardly extends extends along hood inner wall.
Preferably, in above-mentioned technical proposal, wherein the inner surface of hood is handled by black anodizing, hood
Outer surface be provided with second surface mirror.
Preferably, in above-mentioned technical proposal, wherein hood further include: grid reinforcing rib 301, grid reinforcing rib are fixed
On the side wall of hood；Thermistor, thermistor are attached on the inner surface of hood；Whole day detects form hole 302, entirely
Its detection form hole is provided with the side of hood.
Preferably, in above-mentioned technical proposal, collimator is provided with multiple, and collimator is long collimator or short collimation
Device, wherein having a collimator in multiple collimators is short collimator.
Preferably, in above-mentioned technical proposal, wherein long collimator comprises the following structure: long collimator work department 401,
In, the upper surface of long collimator work department is parallel to each other with lower surface；Tantalum piece 402, tantalum piece are centered around outside long collimator work department
All sides；Photomask 403, photomask are set to long collimator work department top surface；Photomask press box 404, photomask press box pressure are set
On photomask, protection cap 405 is additionally provided on photomask press box 404.
Preferably, in above-mentioned technical proposal, wherein short collimator comprises the following structure: short collimator work department, wherein
Short collimator work department has taper reinforcing rib 501；Photomask, photomask are set to short collimator work department top surface；Photomask
Press box, photomask press box are pressed on photomask, and short collimator is similar with the structure of long collimator, only short collimator by
In there are taper reinforcing ribs 501, so after mounting, upper surface and the horizontal plane of short collimator are inclined.
Preferably, in above-mentioned technical proposal, wherein mounting plate is fixedly connected with hood by multiple screws, in screw
Polyimides heat insulating mattress 107 is provided between the contact surface of mounting plate.
Preferably, in above-mentioned technical proposal, the thermal control structure of ultralow temperature low energy detector includes: block 108, and block is in L
One end of shape, block is fixedly connected by screw with simulation upper plate, and the other end of block is solid by the side of screw and mounting plate
Fixed connection.
Preferably, in above-mentioned technical proposal, low energy detector lower case outer surface is coated with white paint.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (9)
1. a kind of thermal control structure of ultralow temperature low energy detector, it is characterised in that: the thermal control knot of the ultralow temperature low energy detector
Structure includes:
Low energy detector lower case；
Low energy detector upper case, the low energy detector upper case include mounting plate and are fixedly connected on the mounting plate
Hood, wherein offer the fluting for accommodating collimator and detector on the mounting plate, the fluting is by multiple points
It is separated every rib；
Detector, the detector are fixedly mounted in the fluting of the mounting plate；
Collimator, the collimator are mounted in the fluting, and the collimator overlays on the detector；
Upper plate is simulated, the mounting plate is fixed on the simulation upper plate, and the simulation upper plate is by the low energy detector
Lower case and the low energy detector upper case separate；
U-shaped heat pipe, the U-shaped bottom of the U-shaped heat pipe are uniformly laid on the separation rib, what the U-shaped heat pipe upwardly extended
Both ends extend along the hood inner wall；And
L-type heat pipe, one end of the L-type heat pipe are uniformly laid on the separation rib, one end that the L-type heat pipe upwardly extends
Extend along the hood inner wall.
2. the thermal control structure of ultralow temperature low energy detector as described in claim 1, it is characterised in that: wherein, the hood
Inner surface by black anodizing handle, the outer surface of the hood is provided with second surface mirror coating.
3. the thermal control structure of ultralow temperature low energy detector as claimed in claim 2, it is characterised in that: wherein, the hood
Further include:
Grid reinforcing rib, the grid reinforcing rib are fixed on the side wall of the hood；
Thermistor, the thermistor are attached on the inner surface of the hood；And
Whole day detects form hole, and whole day detection form hole is provided with the side of the hood.
4. the thermal control structure of ultralow temperature low energy detector as claimed in claim 3, it is characterised in that: the collimator is provided with
It is multiple, and the collimator is long collimator or short collimator, wherein there is the collimation in multiple collimators
Device is the short collimator.
5. the thermal control structure of ultralow temperature low energy detector as claimed in claim 4, it is characterised in that: wherein, the long collimation
Device comprises the following structure:
Long collimator work department, wherein the upper surface of the long collimator work department is parallel to each other with lower surface；
Tantalum piece, the tantalum piece are centered around the long collimator work department circumferential lateral surface；
Photomask, the photomask are set to the long collimator work department top surface；And
Photomask press box, the photomask press box are pressed on the photomask.
6. the thermal control structure of ultralow temperature low energy detector as claimed in claim 4, it is characterised in that: wherein, the short collimation
Device comprises the following structure:
Short collimator work department, wherein the short collimator work department has taper reinforcing rib；
Photomask, the photomask are set to the short collimator work department top surface；And
Photomask press box, the photomask press box are pressed on the photomask.
7. the thermal control structure of ultralow temperature low energy detector as claimed in claim 4, it is characterised in that: wherein, the mounting plate
It is fixedly connected with the hood by multiple screws, is provided with polyamides between the screw and the contact surface of the mounting plate
Imines heat insulating mattress.
8. the thermal control structure of ultralow temperature low energy detector as claimed in claim 7, it is characterised in that: the ultralow temperature low energy is visited
The thermal control structure for surveying device includes: block, and the block is L-shaped, and one end of the block is solid by screw and the simulation upper plate
Fixed connection, the other end of the block are fixedly connected by screw with the side of the mounting plate.
9. the thermal control structure of ultralow temperature low energy detector as claimed in claim 8, it is characterised in that: under the low energy detector
Cabinet outer surface is coated with white paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910141771.5A CN109828621B (en) | 2019-02-26 | 2019-02-26 | Thermal control structure of ultralow-temperature low-energy detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910141771.5A CN109828621B (en) | 2019-02-26 | 2019-02-26 | Thermal control structure of ultralow-temperature low-energy detector |
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| CN109828621A true CN109828621A (en) | 2019-05-31 |
| CN109828621B CN109828621B (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113763844A (en) * | 2021-08-31 | 2021-12-07 | 上海卫星工程研究所 | Red flag mark for Mars detection and mounting method |
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| US5842348A (en) * | 1994-10-28 | 1998-12-01 | Kabushiki Kaisha Toshiba | Self-contained cooling apparatus for achieving cyrogenic temperatures |
| KR20110024357A (en) * | 2009-09-02 | 2011-03-09 | 국방과학연구소 | Black body assembly for calibration of infrared detector |
| CN104329852A (en) * | 2014-08-29 | 2015-02-04 | 青岛海尔股份有限公司 | Semiconductor refrigeration refrigerator and manufacturing method thereof |
| CN208266222U (en) * | 2018-07-02 | 2018-12-21 | 深圳市德捷力冷冻科技有限公司 | The compound deep cold treatment apparatus of metal high/low temperature |
| CN109141628A (en) * | 2018-06-14 | 2019-01-04 | 上海卫星工程研究所 | A kind of spaceborne optical fiber focus planar detector device |
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2019
- 2019-02-26 CN CN201910141771.5A patent/CN109828621B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5842348A (en) * | 1994-10-28 | 1998-12-01 | Kabushiki Kaisha Toshiba | Self-contained cooling apparatus for achieving cyrogenic temperatures |
| KR20110024357A (en) * | 2009-09-02 | 2011-03-09 | 국방과학연구소 | Black body assembly for calibration of infrared detector |
| CN104329852A (en) * | 2014-08-29 | 2015-02-04 | 青岛海尔股份有限公司 | Semiconductor refrigeration refrigerator and manufacturing method thereof |
| CN109141628A (en) * | 2018-06-14 | 2019-01-04 | 上海卫星工程研究所 | A kind of spaceborne optical fiber focus planar detector device |
| CN208266222U (en) * | 2018-07-02 | 2018-12-21 | 深圳市德捷力冷冻科技有限公司 | The compound deep cold treatment apparatus of metal high/low temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113763844A (en) * | 2021-08-31 | 2021-12-07 | 上海卫星工程研究所 | Red flag mark for Mars detection and mounting method |
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