CN109870050B - Method for installing low-temperature cryogenic heat pipe and method for assembling low-energy detector - Google Patents
Method for installing low-temperature cryogenic heat pipe and method for assembling low-energy detector Download PDFInfo
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- CN109870050B CN109870050B CN201910142317.1A CN201910142317A CN109870050B CN 109870050 B CN109870050 B CN 109870050B CN 201910142317 A CN201910142317 A CN 201910142317A CN 109870050 B CN109870050 B CN 109870050B
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Abstract
The invention provides a method for installing a low-temperature cryogenic heat pipe, which comprises the following steps: before the liquid filling of the heat pipe, the light shield and the mounting plate are assembled in a trial mode, and the heat pipe part which does not meet the assembly requirement is repaired; the vertical ends of the U-shaped heat pipe and the L-shaped heat pipe are matched and installed on the inner surface of the light shield, and a secondary surface mirror coating (OSR) sheet is adhered on the outer surface of the light shield; filling liquid into the heat pipe; after the heat pipe, the light shield and the mounting plate are assembled, removing glue; after all the heat pipes are installed, installing a collimator; after the light shield is installed, the grid reinforcing ribs of the light shield, the mounting plate, the heat pipe and the collimator are screwed down; after all the upper surface parts are installed, the upper case is overturned and fixed, and then a shock pad, a detector and a detector pressing frame are installed; and after the detector pressing frame is installed, adhering an anti-pollution heating sheet to one side of the detector pressing frame, wherein a lead of the anti-pollution heating sheet penetrates through the through hole of the installation plate and is thrown out of a window hole in the lower part of the light shield.
Description
Technical Field
The invention relates to the technical field of thermal control of low-energy detectors, in particular to a method for installing a low-temperature cryogenic heat pipe and a method for assembling a low-energy detector.
Background
LE (low-energy) thermal control is a very important key technology for a low-energy X-ray telescope, and the significance of the LE thermal control is to ensure the low temperature required by the normal work of an LE detector SCD, ensure the heating of the SCD after the entry to the rail to avoid the pollution problem and also ensure the higher starting temperature of the LE detector case electronics. The SCD detector has good and stable performance in the range of low temperature ranging from minus 80 ℃ to minus 45 ℃, and when the temperature exceeds minus 45 ℃, the dark current can be obviously increased, and the energy resolution of the detector is deteriorated. The SCD package is not completely closed, and the SCD is sensitive to pollutants, and needs to be heated first after the satellite enters the orbit through thermal control, so as to avoid adsorbing the pollutants due to low temperature. Because the lower case of the LE detector is subjected to radiation heat dissipation treatment, the temperature of the lower case is lower than the lowest starting temperature (-40 ℃) of electronics after the satellite enters the orbit, and the starting temperature of the electronics is required to be ensured to be higher than minus 40 ℃ through thermal control.
The technical difficulty of thermal control is as follows: 1. the track external heat flow environment is severe: firstly, an LE detector is arranged outside a satellite, the low temperature of the LE detector is required to be-80 to-45 ℃, the change of external heat flow is very sensitive, the orbit height selected by an HXMT satellite is only 550km, and the conditions of earth infrared and external heat flow reflected by a load on an observation device are severe, particularly the conditions of the earth infrared heat flow. At present, foreign similar X-ray astronomical satellites mostly have high orbits more than 7000km to avoid the influence of earth infrared and external heat flow of back illumination, or active refrigeration for local thermoelectric refrigeration of the detector is adopted to realize the low-temperature requirement of the detector. Under the condition that the HXMT satellite can only adopt a passive radiation heat dissipation thermal control measure at present, the thermal control design required by LE low temperature is very difficult.
2. Integrative installation overall arrangement of many loads: for an HXMT satellite payload, in order to ensure the precision requirement of a detector, HE, ME and LE detectors with different temperature requirements are all intensively installed on the same main supporting structure, and the difference of the maximum temperature index requirement reaches 70 ℃. The integrated installation layout of the multiple loads ensures that the loads with different temperature requirements are strongly thermally coupled, and on the premise of meeting the structural strength and rigidity, the realized heat insulation measures are limited, which brings great difficulty for three types of detectors, namely HE, ME and LE, to meet the temperature requirements simultaneously.
3. The HXMT satellite mainly has two working modes, namely an observation mode for patrolling the sky and a fixed point observation mode, the proportion of the two modes in the whole service life of the satellite is about 50%, the posture of the satellite is varied in the two working modes, the change of external heat flow borne by a load is quite complex, particularly for the fixed point observation mode, the observation time of the satellite according to an observer target can be up to several days, the conditions that the LE is subjected to earth infrared and the heat flow outside the albedo is severe exist.
4. Payload temperature stability requirements: the LE detector is in an approximately exposed state off-board, and under the complex external thermal current state of the HXMT satellite, if no effective thermal control measures are taken, the temperature fluctuation of the LE detector will inevitably exceed the required temperature range.
5. Probe and electronics heating requirements: the LE detector needs to be heated after the satellite enters the orbit to ensure that the temperature of the LE detector is higher than that of other surrounding parts, and the LE detector cannot be adsorbed on the LE detector when pollutants of other parts volatilize. Because the LE detector carries out good heat conduction and heat dissipation heat control measures, the temperature of the LE detector is lower than that of other surrounding components when the LE detector normally works. Higher power consumption is required if the LE detector needs to be heated to a higher temperature, while the heating band needs to be as close to the detector as possible. The outer wall of the lower case of the LE detector is provided with a radiation heat dissipation coating at present, so that the auxiliary heat dissipation function is achieved, and heat leakage of the upper case of the LE detector is reduced. However, the electronics of the chassis under the LE detector can be normally started up to work only at the temperature of more than 40 ℃ below zero, so preheating is needed. These all present significant difficulties for LE thermal control, requiring extensive coordination to meet the requirements.
6. Low-temperature heat pipes: the main heat conduction in the current scheme depends on the heat pipe, but the current low-temperature heat pipe (lower than-60 ℃) has no previous experience and no reliable mature product, and the problems of heat conduction capability and reliability of the low-temperature heat pipe need to be solved through a switch.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a method for installing a low-temperature cryogenic heat pipe and a method for assembling a low-energy detector, thereby overcoming the defects in the prior art.
In order to achieve the aim, the invention provides a method for installing a low-temperature cryogenic heat pipe, which comprises the following steps:
before the heat pipe is filled with liquid, trial assembling the heat pipe, the light shield and the mounting plate, and repairing and assembling the part of the heat pipe which does not meet the assembly requirement, wherein the heat pipe at least comprises a U-shaped heat pipe and an L-shaped heat pipe;
the vertical ends of the U-shaped heat pipe and the L-shaped heat pipe are matched and installed on the inner surface of the light shield, and a secondary surface mirror coating (OSR) sheet is adhered on the outer surface of the light shield;
filling liquid into the heat pipe, firstly pasting the heat pipe with a non-standard nut, ensuring that the pasting strength is aligned with the hole position, reserving enough curing time after pasting, and carrying out subsequent assembly after complete curing;
after the heat pipe, the light shield and the mounting plate are assembled, removing glue;
after all the heat pipes are installed, installing a collimator;
after the light shield is installed, the grid reinforcing ribs of the light shield, the mounting plate, the heat pipe and the collimator are screwed down;
after all the upper surface parts are installed, the upper case is overturned and fixed, and then a shock pad, a detector and a detector pressing frame are installed; and
after the detector pressing frame is installed, an anti-pollution heating sheet is adhered to one side of the detector pressing frame, and a lead of the anti-pollution heating sheet penetrates through a through hole of the installation plate and is thrown out of a window hole in the lower portion of the light shield;
the case is located in the mounting base, and the case and the mounting base are fastened through mounting plate hoisting screw holes.
Preferably, in the above technical solution, the method for installing the low-temperature cryogenic heat pipe includes the following steps: carrying out thermal implementation after installing the detector pressing frame, and installing the case cover after the thermal implementation, wherein the flexible circuit board is led out from a square hole of the upper case cover; after the upper case is installed, fixing the upper case on the installation base; wherein, all mounting screws of last quick-witted case all scribble the anti-loosening glue when final assembly.
Preferably, in the above technical solution, the thermistor is adhered to the inner surface of the light shield, one side of the mounting plate, and the U-shaped and L-shaped heat pipes.
Preferably, in the above technical solution, an inner surface of the light shield is a black anodized layer.
Preferably, in the above technical solution, a protective cover is disposed on the top of the light shield, and the protective cover is made of an elastic material.
The invention also provides an assembling method of the low-energy detector, which comprises the following steps:
mounting the upper chassis of the low-energy detector with the heat pipe by using the mounting method as described above;
installing a lower case of the low-energy detector;
mounting a lower case of the low-energy detector on the lower surface of an upper plate of a main structure;
placing the special-shaped heat insulation gasket in the counter bore of the upper plate of the main structure;
hoisting the upper case of the low-energy detector until a certain distance is reserved between the upper case of the low-energy detector and the upper plate of the main structure;
connecting the flexible circuit board with the electronics of the lower case of the low-energy detector through a slotted hole of the lower case cover of the low-energy detector, and fixing the flexible circuit board and the surface of the lower case cover of the low-energy detector by using an adhesive tape;
starting the upper case of the low-energy detector below the lifting appliance, and fixedly connecting the lower case of the low-energy detector and the upper case of the low-energy detector; and
and installing a stop block to finish the installation of the low-energy detector.
Preferably, in the above technical solution, the lower case of the low energy detector is installed by the following steps: sticking a heating sheet on the outer surface of the lower case of the low-energy detector and connecting the heating sheet with the lower case; integrally assembling the lower case of the low-energy detector; and implementing the thermistor after assembly is completed.
Preferably, in the above technical solution, the lower case of the low energy detector is installed by the following steps: sticking a heating sheet on the outer surface of the lower case of the low-energy detector and connecting the heating sheet with the lower case; after a heating sheet is pasted, white paint is sprayed; after white paint spraying, the outer surface of the part is protected; performing electric fitting on the lower case of the low-energy detector; integrally assembling the lower case of the low-energy detector after electric fitting; and implementing the thermistor after assembly is completed.
Compared with the prior art, the installation method of the low-temperature deep cooling heat pipe and the assembly method of the low-energy detector have the following beneficial effects: aiming at the thermal control design difficulties of large span, integral structure installation, severe external heat flow and complex change of each effective load temperature index of the HXMT satellite, the general design idea of effective load thermal control of the invention is formulated by combining the structural layout characteristics of LE and according to the analysis and calculation results: for LE installed on the upper plate of the load main structure, the LE is directly exposed to the outside of the satellite, on the basis of heat insulation measures with the HE, a light shield and an electronic case shell of the LE are used as heat radiating surfaces to radiate for cooling, and meanwhile, the heat radiating surfaces are added on the main structure where the LE is in contact to reduce the reference temperature of an LE installation area, so that the low-temperature requirement of the LE is met.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a low energy detector according to an embodiment of the invention;
FIG. 2 is a schematic view of the internal structure of a heat pipe and mounting plate according to one embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a light shield according to an embodiment of the present invention;
FIG. 4 is a method flow diagram of a method of installing a cryogenic heat pipe at a low temperature according to an embodiment of the present invention;
FIG. 5 is a method flow diagram of a method of assembling a low energy detector in accordance with an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
For the convenience of understanding the technical solution of the present application, the mechanical design of the low energy detector with the heat pipe needs to be described first. FIG. 1 is a schematic diagram of the overall structure of a low energy detector according to an embodiment of the invention; FIG. 2 is a schematic view of the internal structure of a heat pipe and mounting plate according to one embodiment of the present invention; fig. 3 is a schematic structural diagram of a light shield according to an embodiment of the invention. As shown in fig. 1-3, the thermal control structure of the ultra-low temperature low energy detector comprises: a low energy detector lower case 101; the low-energy detector upper case comprises a mounting plate 102 and a light shield 103 fixedly connected to the mounting plate, wherein a slot for accommodating the collimator and the detector is formed in the mounting plate, and the slot is separated by a plurality of separating edges 201; the detector 202 is fixedly arranged in the groove of the mounting plate; the collimator is arranged in the slot and is superposed on the detector; a main structure upper plate 104, on which the mounting plate is fixed, and which separates the lower case of the low-energy detector from the upper case of the low-energy detector; the U-shaped bottom of the U-shaped heat pipe 105 is uniformly laid on the separation edges, and two ends of the U-shaped heat pipe extending upwards extend along the inner wall of the light shield; and the L-shaped heat pipes 106, wherein one ends of the L-shaped heat pipes are uniformly laid on the separating edges, and the upwards extending ends of the L-shaped heat pipes extend along the inner wall of the light shield. The mounting plate and the light shield are fixedly connected through a plurality of screws, and a polyimide heat insulation pad 107 is arranged between the contact surfaces of the screws and the mounting plate. And the stop block 108 is L-shaped, one end of the stop block is fixedly connected with the upper plate of the main structure through a screw, and the other end of the stop block is fixedly connected with the side edge of the mounting plate through a screw.
Wherein, the inner surface of the light shield is treated by black anodic oxidation, and the outer surface of the light shield is provided with a secondary surface mirror. Wherein, the light shield still includes: the grid reinforcing ribs 301 are fixed on the side wall of the light shield; the thermistor is attached to the inner surface of the light shield; an all-day inspection window hole 302 is formed at one side of the light shield. The collimator is provided in plurality, and the collimator is a long collimator or a short collimator, wherein one of the plurality of collimators is a short collimator. The mounting plate and the light shield are fixedly connected through a plurality of screws, and a polyimide heat insulation pad 107 is arranged between the contact surfaces of the screws and the mounting plate. The thermal control structure of the ultralow temperature low-energy detector comprises: and the stop block 108 is L-shaped, one end of the stop block is fixedly connected with the upper plate of the main structure through a screw, and the other end of the stop block is fixedly connected with the side edge of the mounting plate through a screw. The outer surface of the lower case of the low-energy detector is coated with white paint.
FIG. 4 is a flow chart of a method of installing a cryogenic heat pipe according to an embodiment of the invention, as shown, the installation method includes:
step 401: before the heat pipe is filled with liquid, trial assembling the heat pipe, the light shield and the mounting plate, and repairing and assembling the part of the heat pipe which does not meet the assembly requirement, wherein the heat pipe at least comprises a U-shaped heat pipe and an L-shaped heat pipe;
step 402: the vertical ends of the U-shaped heat pipe and the L-shaped heat pipe are matched and installed on the inner surface of the light shield, and a secondary surface mirror coating (OSR) sheet is adhered on the outer surface of the light shield;
step 403: filling liquid into the heat pipe, firstly pasting the heat pipe with a non-standard nut, ensuring that the pasting strength is aligned with the hole position, reserving enough curing time after pasting, and carrying out subsequent assembly after complete curing;
step 404: after the heat pipe, the light shield and the mounting plate are assembled, removing glue;
step 405: after all the heat pipes are installed, installing a collimator;
step 406: after the light shield is installed, the grid reinforcing ribs of the light shield, the mounting plate, the heat pipe and the collimator are screwed down;
step 407: after all the upper surface parts are installed, the upper case is overturned and fixed, and then a shock pad, a detector and a detector pressing frame are installed; and
step 408: after the detector pressing frame is installed, an anti-pollution heating sheet is adhered to one side of the detector pressing frame, and a lead of the anti-pollution heating sheet penetrates through a through hole of the installation plate and is thrown out of a window hole in the lower portion of the light shield;
the case is located in the mounting base, and the case and the mounting base are fastened through mounting plate hoisting screw holes.
FIG. 5 is a method flow diagram of a method of assembling a low energy detector according to an embodiment of the invention, as shown, the installation method includes:
step 501: mounting the upper chassis of the low-energy detector with the heat pipe by using the mounting method as described above;
step 502: installing a lower case of the low-energy detector;
step 503: mounting a lower case of the low-energy detector on the lower surface of an upper plate of a main structure;
step 504: placing the special-shaped heat insulation gasket in the counter bore of the upper plate of the main structure;
step 505: hoisting the upper case of the low-energy detector until a certain distance is reserved between the upper case of the low-energy detector and the upper plate of the main structure;
step 506: connecting the flexible circuit board with the electronics of the lower case of the low-energy detector through a slotted hole of the lower case cover of the low-energy detector, and fixing the flexible circuit board and the surface of the lower case cover of the low-energy detector by using an adhesive tape;
step 507: starting the upper case of the low-energy detector below the lifting appliance, and fixedly connecting the lower case of the low-energy detector and the upper case of the low-energy detector; and
step 508: and installing a stop block to finish the installation of the low-energy detector.
A specific embodiment of an installation method is described below. Firstly, installing a case: before filling liquid into the heat pipe, the heat pipe must be trial-assembled with a light shield and an installation plate, the heat pipe is repaired at a place which does not meet the assembly requirement, and meanwhile, the corresponding repair size is recorded; the inner surface of the light shield is matched with the vertical ends of the U-shaped heat pipe and the L-shaped heat pipe, an OSR sheet is pasted on the outer surface, and after the OSR sheet is pasted, protective measures are taken; after the liquid is filled into the heat pipe, the heat pipe is firstly pasted with a non-standard nut, the pasting strength is ensured to be aligned with the hole position, enough curing time is reserved after the pasting is finished, and the subsequent assembly is carried out after the curing is completed; thermistors are required to be pasted on the inner surface of the lens hood, the + X side of the mounting plate, the U-shaped heat pipe and the L-shaped heat pipe; the inner surface of the light shield is subjected to black anodic oxidation; after the heat pipe, the light shield and the mounting plate are assembled, cleaning work such as glue removal is carried out; because the shading film on the top surface of the collimator is easy to break and the installation space of the heat pipe and the collimator is narrow, the collimator needs to be installed after all the heat pipes are installed, and the collimator needs to be protected during installation; the connection screws of the grid reinforcing ribs of the light shield, the mounting plate, the heat pipe and the collimator are all implemented after the light shield is mounted, so that the lengthened adapter rod needs to be designed and can be screwed down after being led out. Attention is paid to the compensation of the lengthening rod on the original rated torque, if the lengthening rod cannot be screwed by a torque wrench due to space limitation, the lengthening rod is allowed to be screwed by a common wrench according to experience; after all parts on the upper surface of the mounting plate are mounted, the upper case is overturned and fixed, and the shock pad, the detector and the detector pressing frame are mounted. Because the low-energy detector is directly exposed, the operations of taking, installing and the like must adopt antistatic measures, gloves must be worn, and the low-energy detector must be carefully and lightly placed in the operation process to prevent collision and pollution. Because the lower end of the detector is welded with the flexible circuit board, when the detector pressing frame is fixed on the mounting plate, care must be taken, and the situations such as bending of contact pins and the like must be avoided in the mounting process; after the detector pressing frame is installed, an anti-pollution heating sheet is adhered to the-X side of the detector sub-frame, and the lead passes through the phi 6 through hole of the installation plate and is thrown out of a window hole in the lower portion of the light shield. After the integral welding of the anti-pollution heating sheet on the tool is finished, the anti-pollution heating sheet is adhered to the X side of the detector pressing frame; because the chassis needs to be turned over for many times in the installation process, in order to ensure the installation stability and protect the installed parts, an installation base needs to be designed, the installation base is fastened by utilizing the installation plate hoisting screw hole, and enough space needs to be reserved after the turning-over of the height size of the light shield; the top of the light shield is provided with a protective cover to prevent dust or foreign matters from damaging structures such as a collimator and a detector in the process of carrying, storing or transporting. The protective cover is elastic, cannot easily fall off in the carrying process, and cannot damage the heat pipe and the OSR sheet; and after the detector pressing frame is installed, the detector is thermally implemented, then the case cover is installed, and the flexible circuit board is led out from a square hole of the upper case cover. In order to prevent the occurrence of phenomena such as cracking of welding points of the flexible circuit board during vibration and impact, the flexible circuit board is fixed with the-X side of the upper case sealing cover; the-X side of the upper case cover covers a plurality of layers, and a space is reserved for mounting the flexible circuit board; after the upper case is installed, the upper case is fixed on the installation base, and the line throwing, binding or fixing of the flexible circuit board is required to be protected; all mounting screws of the upper case need to be coated with MS anti-loose glue during final assembly. And after the upper case is measured, covering the protective cover and putting the protective cover into the packaging case.
Then, installing a lower case: heating sheets are adhered to the outer surface of the lower case and connected; spraying white paint after implementing the heating plate, and protecting the outer surface of the part after spraying the white paint; then, each layer of the lower chassis is taken out of the electric device, and all circuit boards and connectors are installed (completed by high energy); after electric fitting, the lower case is integrally assembled; the thermistor is implemented after assembly.
The low energy detector is then assembled: firstly, mounting a lower case of a low-energy detector on the lower surface of an upper plate of a main structure, and taking care of protecting white paint and a thermal control cable in the mounting process; placing special-shaped heat insulation gaskets in the counter bores of the upper plate of the main structure, wherein the hexagonal long edges of all the heat insulation gaskets are consistent with the long edges of the upper case of the low-energy detector; then hoisting the upper case of the low-energy detector, and keeping the stability of the lifting appliance by keeping a space into which the upper plate can extend by hand; connecting the flexible circuit board with the electronics of the lower chassis through a slotted hole of a lower chassis cover, and fixing the flexible circuit board and the surface of the lower chassis cover by using a 3M adhesive tape in order to prevent the phenomena of welding spot cracking and the like of the flexible circuit board during vibration and impact after connection; starting a lifting appliance, descending the upper case of the low-energy detector, adjusting the position to enable the hexagon of the heat insulation pad to be aligned with the hexagonal hole of the mounting plate of the upper case, mounting the straight barrel-shaped heat insulation pad, the nonstandard gaskets and the M6 screws, and uniformly screwing the screws in a crossed and symmetrical manner; 12 blocks are installed, and the low-energy detector and the telescope are installed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The installation method of the low-temperature cryogenic heat pipe is characterized by comprising the following steps of: the installation method of the low-temperature cryogenic heat pipe comprises the following steps:
before the heat pipe is filled with liquid, trial assembling the heat pipe, the light shield and the mounting plate, and repairing and assembling the part of the heat pipe which does not meet the assembly requirement, wherein the heat pipe at least comprises a U-shaped heat pipe and an L-shaped heat pipe;
fitting the vertical ends of the U-shaped heat pipe and the L-shaped heat pipe to the inner surface of the light shield, and adhering a secondary surface mirror coating (OSR) sheet to the outer surface of the light shield; the mounting plate is provided with a slot for accommodating the collimator and the detector, and the slot is separated by a plurality of separating edges; the U-shaped bottom of the U-shaped heat pipe is uniformly laid on the separation edges along the length direction of the mounting plate, and two ends of the U-shaped heat pipe extending upwards extend along the inner wall of the light shield; the U-shaped heat pipes are not arranged on the separating edges on the left side and the right side along the length direction of the mounting plate, but the L-shaped heat pipes are symmetrically arranged, the short edges of the L-shaped heat pipes on the left side and the right side are oppositely arranged, and one ends of the L-shaped heat pipes extending upwards extend along the inner wall of the light shield;
filling liquid into the heat pipe, firstly pasting the non-standard nut on the vertical end outer vertical surface of the heat pipe, ensuring the pasting strength, ensuring that the non-standard nut is aligned with the hole position on the light shield, reserving enough curing time after pasting, and performing subsequent assembly after complete curing;
after the heat pipe, the light shield and the mounting plate are assembled, removing glue; the mounting plate is fixedly connected with the light shield through a plurality of screws;
after all the heat pipes are installed, installing a collimator; the collimator is arranged in the slot of the mounting plate and is superposed on the detector;
after the light shield is installed, the connecting screws of the grid reinforcing ribs of the light shield are screwed, and the connecting screws between the mounting plate and the heat pipe and the connecting screws between the mounting plate and the collimator are screwed; the grid reinforcing ribs are fixed on the side wall of the light shield;
the mounting plate is fixed on the main structure upper plate, and the low-energy detector lower case and the low-energy detector upper case are separated by the main structure upper plate; the upper case of the low-energy detector comprises an installation plate and a light shield fixedly connected to the installation plate, and after all parts on the upper surface of the upper plate of the main structure are installed, the upper case is turned over and fixed, and a shock pad, a detector and a detector pressing frame are installed; the detector is fixedly arranged in the open slot of the mounting plate, the shock pad is arranged between the detector and the mounting plate, and the detector pressing frame is fixed on the mounting plate;
and
after the detector pressing frame is installed, an anti-pollution heating sheet is adhered to one side of the detector pressing frame, and a lead of the anti-pollution heating sheet penetrates through a through hole of the installation plate and is thrown out of a window hole in the lower portion of the light shield;
the upper case is positioned in the mounting base, and the upper case is fastened with the mounting base through mounting plate hoisting screw holes.
2. The method for installing a cryogenic heat pipe according to claim 1, wherein: the installation method of the low-temperature cryogenic heat pipe comprises the following steps:
after an anti-pollution heating sheet is adhered to one side of the detector pressing frame, a case cover is installed, wherein a flexible circuit board is led out from a square hole of the upper case cover; and
after the upper case is installed, fixing the upper case on the installation base;
wherein, all mounting screws of last quick-witted case all scribble the anti-loosening glue when final assembly.
3. The method for installing a cryogenic heat pipe according to claim 2, wherein: and thermistors are adhered to the inner surface of the light shield, one side of the mounting plate and the U-shaped and L-shaped heat pipes.
4. The method for installing a cryogenic heat pipe according to claim 3, wherein: wherein, the inner surface of the light shield is a black anodic oxide layer.
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3265139B2 (en) * | 1994-10-28 | 2002-03-11 | 株式会社東芝 | Cryogenic equipment |
| KR101050170B1 (en) * | 2009-09-02 | 2011-07-19 | 국방과학연구소 | Blackbody assembly for infrared detector calibration |
| CN104329852B (en) * | 2014-08-29 | 2017-02-15 | 青岛海尔股份有限公司 | Semiconductor refrigeration refrigerator and manufacturing method thereof |
| CN104443441B (en) * | 2014-10-31 | 2016-07-27 | 上海卫星工程研究所 | Orbit transfer vehicle star sensor the is on the low side independent thermal controls apparatus of temperature |
| CN208317224U (en) * | 2018-04-27 | 2019-01-01 | 中国科学院高能物理研究所 | Spoke cold plate structure and space probe for space probe |
| CN208344553U (en) * | 2018-05-31 | 2019-01-08 | 中国空间技术研究院 | A kind of earth sensor radiation shield |
| CN109141628B (en) * | 2018-06-14 | 2021-03-09 | 上海卫星工程研究所 | Satellite-borne optical fiber focal plane 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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