Spacecraft heat flow calibration device and spacecraft heat flow calibration system

Abstract

A spacecraft heat flow calibration device and a spacecraft heat flow calibration system, relating to the technical field of calibration test, the device comprises a main body, the main body is installed with function part and adjusting part, the function part includes heat insulation connected calibration plate and compensation plate, the calibration plate includes lamp array, the lamp array is used for realizing heat flow simulation, the compensation plate is used for temperature compensation to the calibration plate, the function part is movably installed on the main body through the adjusting part, the adjusting part enables the function part to move along the first direction and / or the second direction relative to the main body, the position of the function part can be adjusted according to the requirement of test, the operation is convenient, and the accuracy of heat flow calibration test is improved.

Description

Technical Field

[0001] This utility model relates to the field of calibration and testing technology, and in particular to a spacecraft heat flow calibration device and a spacecraft heat flow calibration system. Background Technology

[0002] Spacecraft (such as ultra-low orbit satellites) face cold black environments and complex thermal environments when operating in orbit. Therefore, before being put into formal use, in order to evaluate whether the various components of the spacecraft are operating normally in a vacuum thermal environment, verify the thermal analysis calculation model of the spacecraft, and obtain the temperature distribution data of the spacecraft, it is necessary to conduct vacuum thermal tests on the ground. The most critical factor in the vacuum thermal test is heat flow simulation.

[0003] Heat flow simulation typically employs two methods: heating cages and infrared lamp arrays. Since it is impossible to accurately assess the actual heat flow reaching the heating surface, a heat flow meter is needed to assist in the assessment. The heat flow meter needs to be calibrated before use. If the accuracy of the heat flow simulation is insufficient, it will cause errors in heat flow measurement, resulting in significant deviations in the thermal test data. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a spacecraft heat flow calibration device and a spacecraft heat flow calibration system, which can adjust the position of the functional parts according to the needs of the test, thereby improving the accuracy of the calibration test.

[0005] This utility model provides a spacecraft heat flow calibration device, including a main body, on which a functional part and an adjustment part are mounted. The functional part includes a calibration plate and a compensation plate connected by thermal insulation. The calibration plate includes a lamp array for simulating heat flow. The compensation plate is used to compensate the temperature of the calibration plate. The functional part is movably mounted on the main body through the adjustment part, which enables the functional part to move relative to the main body in a first direction and / or a second direction.

[0006] In one embodiment, a guide portion is installed on the main body, which is used to cooperate with a guide matching portion inside the vacuum container to send the main body into the vacuum container and fix it.

[0007] In one embodiment, the guide portion includes a wheel, a guide plate, and a fixing member. The wheel is mounted on the lower end of the main body, and the guide plate is mounted on both sides of the main body along a second direction, with the lower end of the guide plate protruding from the lower end of the wheel. The guide matching portion includes a first guide rail and a second guide rail arranged in parallel, with a guide gap between the first guide rail and the second guide rail. The wheel slides with the first guide rail, and the guide plate passes through and slides within the guide gap. The fixing member is used to fix the guide plate within the guide gap.

[0008] In one embodiment, the lamp array includes a plurality of lamp sources, and a heat flow meter is provided in front of the center of each lamp source. Each lamp source and the heat flow meter are mounted on the first plate of the calibration plate by a fixing part.

[0009] In one embodiment, the adjustment unit includes a base, a movable seat, and a mounting support. The base is detachably mounted on the upper end of the main body. The movable seat is movably mounted on the base and can move relative to the base in a first direction. The mounting support is detachably mounted on the movable seat, and / or the mounting support can move relative to the movable seat in a second direction. The mounting support is used to mount the functional unit.

[0010] In one embodiment, the adjustment part further includes a connector, the connector including a drive rod and a slide, the slide being slidably fitted with the drive rod, the drive rod extending in a first direction when the movable seat is movably mounted on the base via the connector, and / or the drive rod extending in a second direction when the mounting support is movably mounted on the movable seat via the connector.

[0011] In one embodiment, when the connector is used to connect the base and the movable seat, the connector is installed at the lower end of the base, the base has a guide groove that extends along a first direction, the upper part of the slide passes through the guide groove and is connected to the movable seat, and the slide is slidably disposed in the guide groove.

[0012] In one embodiment, when the connector is used to connect the movable seat and the mounting support, the connector is mounted on the upper end of the movable seat, and the upper end of the slide is connected to the mounting support.

[0013] In one embodiment, the mounting support includes a first bracket and a second bracket. The first bracket includes a main arm and mounting arms located at both ends of the main arm. The lower end of the main arm is connected to the connector, and the mounting arms are used to mount the second bracket.

[0014] This utility model also proposes a spacecraft heat flow calibration system, including the aforementioned spacecraft heat flow calibration device and a vacuum container. A guide matching part is installed inside the vacuum container, and the guide matching part cooperates with a guide part on the main body to facilitate sending the main body into the vacuum container and fixing it.

[0015] The beneficial effects of this utility model are as follows: An adjustment section is provided on the main body, which serves two purposes: it can install functional components to ensure the installation quality of the functional components, facilitate flexible replacement and maintenance of functional components according to actual needs, and adjust the position of the functional components. During calibration tests, the position of the functional components can be adjusted according to the test requirements, thereby improving the accuracy of the calibration tests. The functional components include a calibration plate and a compensation plate with thermal insulation connection. The calibration plate can realize heat flow simulation through the lamp array, and the compensation plate can realize temperature compensation of the calibration plate, reducing heat flow loss on the calibration plate due to heat conduction and radiation, which helps to ensure the accuracy of heat flow simulation and improves the efficiency of the test. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is an exploded view of the functional parts of an embodiment of the present invention.

[0019] Figure 3 for Figure 2 Enlarged diagram in the image.

[0020] Figure 4 This is an exploded view of the adjustment section according to an embodiment of the present invention.

[0021] Figure 5 This is an exploded view of the adjustment part of an embodiment of the present invention from another angle.

[0022] Figure 6 This is a schematic diagram of the structure of the guide matching part according to an embodiment of the present invention.

[0023] In the picture: 10-Main body; 11-Wheel body; 12-Guide plate; 13-Fixing component; 20-Calibration plate; 21-Light source; 22-Heat flow meter; 23-Fixing part; 231-Lamp holder; 232-Heat flow meter holder; 233-Mounting part; 234-Main rod; 235-L-shaped bracket; 236-Support frame; 30-Compensation plate; 40 - Adjustment section; 41 - Base; 411 - Track; 412 - Slider; 413 - Guide groove; 42 - Movable seat; 421 - Weight reduction groove; 43 - Mounting support; 431 - First bracket; 432 - Second bracket; 433 - Main arm; 434 - Mounting arm; 44 - Connector; 441 - Drive rod; 442 - Slide seat; 443 - Power source; 444 - Rod seat; 50 - Guide matching part; 51 - First guide rail; 52 - Second guide rail; 53 - Guide interval; 54 - Support leg. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0025] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0028] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] Reference Figure 1The coordinate system in this invention defines the X-axis as the first direction, the Y-axis as the second direction, and the Z-axis as the third direction, i.e., the up and down directions, where the first, second, and third directions are mutually perpendicular. It is understood that this coordinate system is intended to illustrate the approximate positional, connection, or motion relationships of the components, and does not imply that the components in this invention must be strictly set or connected according to the above coordinate system. Those skilled in the art can flexibly adjust it according to actual needs.

[0030] like Figure 1 As shown, the spacecraft heat flow calibration device proposed in this utility model includes a main body 10, on which a functional part and an adjustment part 40 are installed. The functional part includes a calibration plate 20 and a compensation plate 30, which are thermally connected. The calibration plate 20 includes a lamp array for heat flow simulation, and the compensation plate 30 is used to compensate for the temperature of the calibration plate 20. The functional part is movably mounted on the main body 10 through the adjustment part 40. The adjustment part 40 is configured to allow the functional part to move relative to the main body 10 in a first direction and / or a second direction to adjust the position of the calibration plate 20 and the compensation plate 30 according to the experimental requirements of the spacecraft, thereby improving the accuracy of the calibration test.

[0031] The spacecraft heat flow calibration device proposed in this utility model has an adjustment part 40 on the main body 10. This adjustment part can not only install the functional parts to ensure the installation quality of the functional parts and facilitate flexible replacement and maintenance of the functional parts according to actual needs, but also adjust the position of the functional parts. During the calibration test, the position of the functional parts can be adjusted according to the test requirements, thereby improving the accuracy of the calibration test. The functional parts include a calibration plate 20 and a compensation plate 30 with thermal insulation connection. The calibration plate 20 can realize heat flow simulation through the lamp array, and the compensation plate 30 can realize temperature compensation of the calibration plate 20, reducing heat flow loss on the calibration plate 20 due to heat conduction and radiation leakage, which helps to ensure the accuracy of heat flow simulation and improve the efficiency of the test.

[0032] In one example scheme, combined Figure 1 and Figure 6 The main body 10 is equipped with a guide part, which is used to cooperate with the guide matching part 50 inside the vacuum container to facilitate the insertion of the main body 10 into the vacuum container and fix the main body 10 inside the vacuum container, so as to avoid the main body 10 shaking or shifting position during the test and affecting the accuracy of the test data.

[0033] For example, such as Figure 1As shown, the guide part includes a wheel body 11, a guide plate 12 and a fixing member 13. The wheel body 11 is installed at the lower end of the main body 10. The wheel body 11 makes the main body 10 easy to move, so as to send the main body 10 into the vacuum container. By performing a vacuuming operation on the vacuum container, a vacuum environment can be simulated to conduct a heat flow calibration test in a vacuum environment.

[0034] like Figure 1 As shown, guide plates 12 are installed on both sides of the main body 10 along the second direction, and the lower end of the guide plates 12 protrudes downward from the lower end of the wheel body 11. Fixing members 13 are installed on the guide plates 12 to fix the guide plates 12 to the guide matching part 50, thus combining... Figure 6 The guide matching part 50 includes a first guide rail 51 and a second guide rail 52. Both the first guide rail 51 and the second guide rail 52 extend along a first direction, and a guide gap 53 is provided between the first guide rail 51 and the second guide rail 52. The first guide rail 51 is configured such that its upper end is higher than the upper end of the second guide rail 52. When the guide part cooperates with the guide matching part 50, the wheel body 11 contacts the upper end of the first guide rail 51 and slides with the first guide rail 51. The fixing member 13 is located above the second guide rail 52. The guide plate 12 passes through the guide gap 53, and both ends of the guide plate 12 can contact the sides of the first guide rail 51 and the second guide rail 52 respectively. The fixing member 13 is used to fix the guide plate 12 to the guide gap 53.

[0035] The first guide rail 51 cooperates with the wheel 11 to send the main body 10 into the vacuum container. The guide plate 12 cooperates with the guide gap 53 to make the main body 10 move stably along the first direction, avoiding the position of the main body 10 from shifting, and also preventing the main body 10 from shaking or shifting along the second direction during the test. The fixing member 13 is used to fix the main body 10 to ensure the stability of the main body 10 and prevent the main body 10 from shaking or shifting along the first direction.

[0036] For example, refer to Figure 1 The fixing component 13 includes a handle and a through rod. The handle is connected to one end of the through rod, and the through rod is connected to the guide plate 12 by screwing. By rotating the handle, the end of the through rod can make force contact with the side wall of the first guide rail 51, thereby fixing the main body 10 and the guide matching part 50 and preventing the main body 10 from moving along the first direction during the test.

[0037] For example, such as Figure 6 As shown, the guide matching part 50 also includes a support leg 54, which is used to fix the first guide rail 51 and the second guide rail 52 inside the vacuum container.

[0038] Furthermore, the first guide rail 51 and the second guide rail 52 are configured as two sets, and are opposite to each other along the second direction.

[0039] In one example, the main body 10 adopts a frame structure formed by splicing profiles. The profiles have good structural strength and rigidity, providing reliable support and helping to avoid deformation or damage during installation and use, thereby ensuring the accuracy of heat flow simulation. Furthermore, the overall weight of the profiles is relatively light, which helps to reduce the overall weight of the main body 10, facilitating disassembly and processing. Optionally, the connections between the profiles can adopt detachable connection methods such as screws or snap-fits to improve assembly efficiency and facilitate disassembly and maintenance.

[0040] In an example scheme, such as Figure 2 As shown, the calibration plate 20 includes a first plate body, a lamp array, a heat flow meter 22, a heater, and a temperature measuring thermocouple. The first plate body includes a front and a back side facing each other in a second direction. The lamp array and the heat flow meter 22 are arranged on the front side of the first plate body. The lamp array includes several lamp sources 21, each lamp source 21 corresponding to a heat flow meter 22. The heat flow meter 22 is located in front of the center of the lamp source 21 (i.e., on the side close to the first plate body). The surface normal of the heat flow meter 22 is perpendicular to the array surface of the lamp array. Multiple heaters and temperature measuring thermocouples are arranged on the back side of the first plate body. Multiple heaters work independently to achieve independent temperature control in different zones.

[0041] For example, the first plate is configured as an aluminum plate of 1353mm×385mm×2mm, and the front of the first plate is coated with white paint.

[0042] For example, the lamp array uses eight uniformly arranged lamp sources 21. The distance between the lamp array and the front of the first plate is configured to be 350mm. The center-to-center distance between two adjacent lamp sources 21 in the first direction is configured to be 333mm~350mm, and the center-to-center distance between two adjacent lamp sources 21 in the third direction is configured to be 200mm. This configuration allows for heat flow calibration, providing a closed-loop temperature compensation reference for subsequent vacuum thermal tests. Furthermore, the uniform arrangement of the lamp sources 21 in the lamp array improves the working efficiency of the lamp array, thereby improving the simulation quality of heat flow. Further, the lamp sources 21 are infrared lamps.

[0043] For example, the back of the first plate is evenly divided into regions according to the arrangement of the lamp array. When the lamp array uses 8 infrared lamps evenly arranged, the back of the first plate is evenly divided into eight regions, and each region is equipped with a heater and a temperature measuring thermocouple, and the heater and temperature measuring thermocouple in each region work independently.

[0044] For example, the distance between the heat flow meter 22 and the front surface of the first plate is configured to be 10 mm, which can ensure the working quality of the heat flow meter 22. Furthermore, the heat flow meter 22 is a black sheet type insulated heat flow meter.

[0045] For example, the back of the first plate is covered with a 15-unit multilayer thermal insulation assembly, and a compensation plate 30 is installed on the side of the 15-unit multilayer thermal insulation assembly away from the first plate to achieve thermal insulation connection between the first plate of the calibration plate 20 and the compensation plate 30.

[0046] In one example, the compensation plate 30 includes a second plate body, a compensation heater, and a compensation thermocouple. The second plate body includes a front and a back side facing each other in a second direction. The compensation heater and the compensation thermocouple are both arranged on the front side of the second plate body, and multiple compensation heaters and compensation thermocouples work independently to achieve independent temperature control in different zones.

[0047] For example, the second plate is configured with a temperature compensation aluminum plate with a thickness of 2 mm, and the size of the second plate is the same as that of the first plate. The arrangement of the compensation heater and the compensation thermocouple on the second plate is the same as that on the first plate.

[0048] Using an infrared lamp array can simulate external heat flow. Through calibration tests, the actual heat flow of the infrared lamp array under different test conditions can be determined, which helps to ensure the accuracy of heat flow. By adjusting the position of the functional parts, the real thermal environment faced by the spacecraft during actual operation can be simulated more effectively, which helps to reduce the number of repeated tests and reduce test costs. By implementing independent temperature control of the infrared lamp array in different zones, the distribution and magnitude of heat flow can be precisely controlled, and other non-heat sink surfaces in the front hemispherical space of the first plate can be avoided, which helps to ensure the accuracy of the test.

[0049] The main function of the compensation plate 30 is to reduce the heat flow loss on the first plate due to heat conduction and radiation leakage, and to track the temperature measuring thermocouples of each zone on the first plate in real time during the test, thereby reducing the temperature difference between the first plate and the second plate and reducing heat conduction and radiation leakage.

[0050] For example, combined Figure 2 and Figure 3 Each of the aforementioned light sources 21 and heat flow meters 22 is mounted on the first plate via a fixing part 23. The fixing part 23 includes a lamp holder 231, a heat flow meter holder 232, and a mounting component 233. The lamp holder 231 is used to mount the light source 21, and the heat flow meter holder 232 is used to mount the heat flow meter 22. Both the lamp holder 231 and the heat flow meter holder 232 can be detachably mounted on the mounting component 233 to facilitate the installation of the light source 21 and the heat flow meter 22.

[0051] Furthermore, such as Figure 2As shown, the heat flow meter holder 232 adopts an L-shaped structure, that is, the heat flow meter holder 232 includes two vertically connected arms. One arm of the heat flow meter holder 232 is used to install the heat flow meter 22, and the other arm is used to be detachably connected to the mounting component 233 so as to adjust the distance between the heat flow meter 22 and the first plate.

[0052] Furthermore, such as Figure 3 As shown, the mounting component 233 includes a main rod 234 extending along a second direction. An L-shaped bracket 235 is detachably mounted on the main rod 234. Specifically, the L-shaped bracket 235 includes two vertically connected arms. One arm of the L-shaped bracket 235 is detachably connected to the main rod 234, and the other arm is detachably connected to the lamp holder 231, thereby enabling the installation of the lamp holder 231. By adjusting the position of the L-shaped bracket 235 relative to the main rod 234, the distance between the light source 21 and the first plate can be adjusted.

[0053] Furthermore, such as Figure 1 As shown, the mounting component 233 also includes a support frame 236, which is used to connect to the end of the main rod 234 away from the first plate to arrange multiple fixing parts 23, thereby realizing the arrangement of the light array.

[0054] Optionally, the support frame 236 adopts a frame structure formed by splicing profiles.

[0055] In one example scheme, combined Figure 4 and Figure 5 The adjustment unit 40 includes a base 41, a movable seat 42, and a mounting support 43. The base 41 is detachably mounted on the upper end of the main body 10 for mounting the movable seat 42 and the mounting support 43 on the main body 10. The movable seat 42 is movably mounted on the base 41 and can move relative to the base 41 in a first direction. And / or, the mounting support 43 can move relative to the movable seat 42 in a second direction. The mounting support 43 is used to mount the functional unit.

[0056] The movable seat 42 allows the mounting support 43 to move relative to the main body 10 in a first direction to adjust the position of the functional part in the first direction according to the test requirements, and / or the movable mounting support 43 relative to the movable seat 42 allows the functional part to move relative to the main body 10 in a second direction to adjust the position of the functional part in the second direction according to the test requirements, which is more flexible and can more accurately simulate heat flow.

[0057] For example, such as Figure 4As shown, a slide rail assembly is provided on the upper end of the base 41. The slide rail assembly includes a track 411 and a slider 412. The track 411 extends along a first direction, and the slider 412 slides on the track 411. The movable seat 42 is installed on the upper end of the slider 412. The slide rail assembly can play an auxiliary guiding role in the movement of the movable seat 42, ensuring the stability and efficiency of the movement of the movable seat 42.

[0058] For example, combined Figure 4 and Figure 5 The movable seat 42 is provided with a weight reduction groove 421 to reduce the overall weight of the movable seat 42, thereby helping to ensure the stability of the movement of the movable seat 42.

[0059] For example, combined Figure 4 and Figure 5 The adjustment unit 40 also includes a connector 44 for connecting the base 41 and the movable seat 42 so that the movable seat 42 is movably mounted on the base 41 via the connector 44, and / or, the connector 44 for connecting the movable seat 42 and the mounting support 43 so that the mounting support 43 is movably mounted on the movable seat 42 via the connector 44.

[0060] For example, combined Figure 4 and Figure 5 The connector 44 includes a drive rod 441 and a slide block 442. The slide block 442 is mounted on the drive rod 441 and is slidably engaged with the drive rod 441. When the connector 44 is used to connect the base 41 and the movable seat 42, the drive rod 441 extends in a first direction. When the connector 44 is used to connect the movable seat 42 and the mounting support 43, the drive rod 441 extends in a second direction.

[0061] Furthermore, when the connector 44 is used to connect the base 41 and the movable seat 42, it combines... Figure 4 and Figure 5 The connector 44 is arranged at the lower end of the base 41. The base 41 is provided with a guide groove 413. The guide groove 413 passes through the base 41 in the vertical direction and extends in the first direction. The upper part of the slide 442 passes through the guide groove 413 and connects with the movable seat 42. The slide 442 slides in the guide groove 413 and can move in the guide groove 413 in the first direction relative to the drive rod 441.

[0062] By opening a guide groove 413 on the base 41, the two side walls of the guide groove 413 along the first direction can limit the movement stroke of the slide 442, and the guide groove 413 can guide the movement of the slide 442 to ensure the stability of the movement of the slide 442. This helps to avoid the shaking problem of the functional part during the adjustment process and improves the efficiency of the test.

[0063] For example, the base 41 is detachably mounted on the upper part of the main body 10 so that different bases 41 can be replaced according to test requirements, thereby limiting and adjusting the movement stroke of the slide 442 by replacing the guide groove 413 of different specifications.

[0064] Furthermore, when the connector 44 is used to connect the movable seat 42 and the mounting support 43, such as Figure 4 As shown, the connector 44 is disposed on the upper end of the movable seat 42, and the upper end of the slide 442 is connected to the mounting support 43, so that the movement of the slide 442 is equivalent to the movement of the drive rod 441, thereby driving the mounting support 43 to move relative to the movable seat 42 in the second direction. Optionally, two connectors 44 are provided, and they are connected to the lower ends of the mounting support 43 on both sides in the first direction.

[0065] Furthermore, combined Figure 4 and Figure 5 The connecting member 44 also includes a power source 443, which is connected to the drive rod 441. The power source 443 is used to rotate the drive rod 441 about its own axis, thereby causing the slide 442 to move along the axis of the drive rod 441 (i.e., the first direction or the second direction). Optionally, the drive rod 441 is a lead screw, and the slide 442 is a lead screw nut seat.

[0066] Furthermore, combined Figure 4 and Figure 5 The connector 44 also includes a rod seat 444, through which the drive rod 441 is mounted, and the drive rod 441 is rotatable about its own axis relative to the rod seat 444. Optionally, the number of rod seats 444 is set to two, and the two rod seats 444 are distributed at intervals along the axial direction of the drive rod 441 for fixing the two sides of the drive rod 441.

[0067] In an example scheme, such as Figure 5 As shown, the mounting support 43 includes a first bracket 431 and a second bracket 432, which are combined with... Figure 4 The first bracket 431 includes a main arm 433 and mounting arms 434 located at both ends of the main arm 433. The lower end of the main arm 433 is connected to the connector 44, or more specifically, to the upper end of the slide block 442. The mounting arms 434 extend in the vertical direction and protrude upward from the upper end of the main arm 433. The mounting arms 434 are used to mount the second bracket 432.

[0068] For example, such as Figure 5 As shown, the second bracket 432 includes two uprights connected to the mounting arm 434, and at least one horizontal column for connecting the uprights. The second bracket 432 is used to install the functional part.

[0069] Optionally, the uprights and crossbars are made of profiles, which have good structural strength and rigidity, can provide reliable support, help avoid deformation or damage during installation and use, and thus help ensure the accuracy of heat flow simulation. In addition, the overall weight of the profiles is relatively light, which helps to reduce the overall weight of the second bracket 432.

[0070] Combination Figure 1 and Figure 6 This utility model also proposes a spacecraft heat flow calibration system, including the aforementioned spacecraft heat flow calibration device and a vacuum container. A guide matching part 50 is installed inside the vacuum container. The guide matching part 50 cooperates with the guide part on the main body 10 to facilitate sending the main body 10 into the vacuum container and fixing it.

[0071] Since the spacecraft heat flow calibration system proposed in this utility model includes all the technical solutions of all the aforementioned embodiments of the spacecraft heat flow calibration device, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be repeated here.

[0072] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A spacecraft heat flux calibration device, characterized in that, The device includes a main body (10), on which a functional part and an adjustment part (40) are mounted. The functional part includes a calibration plate (20) and a compensation plate (30) connected by thermal insulation. The calibration plate (20) includes a lamp array for simulating heat flow. The compensation plate (30) is used to compensate the temperature of the calibration plate (20). The functional part is movably mounted on the main body (10) through the adjustment part (40). The adjustment part (40) enables the functional part to move relative to the main body (10) in a first direction and / or a second direction.

2. The spacecraft heat flux calibration device according to claim 1, characterized in that, The main body (10) is equipped with a guide part, which is used to cooperate with the guide matching part (50) inside the vacuum container to send the main body (10) into the vacuum container and fix it.

3. The spacecraft heat flux calibration device according to claim 2, characterized in that, The guide part includes a wheel (11), a guide plate (12), and a fixing member (13). The wheel (11) is installed at the lower end of the main body (10). The guide plate (12) is installed on both sides of the main body (10) along the second direction, and the lower end of the guide plate (12) protrudes from the lower end of the wheel (11). The guide matching part (50) includes a first guide rail (51) and a second guide rail (52) arranged in parallel. A guide gap (53) is provided between the first guide rail (51) and the second guide rail (52). The wheel (11) slides with the first guide rail (51). The guide plate (12) passes through and slides within the guide gap (53). The fixing member (13) is used to fix the guide plate (12) within the guide gap (53).

4. The spacecraft heat flux calibration device according to claim 1, characterized in that, The light array includes several light sources (21), and a heat flow meter (22) is provided in front of the center of each light source (21). Each light source (21) and the heat flow meter (22) are mounted on the first plate of the calibration plate (20) through a fixing part (23).

5. The spacecraft heat flux calibration device according to claim 1, characterized in that, The adjustment unit (40) includes a base (41), a movable seat (42), and a mounting support (43). The base (41) is detachably mounted on the upper end of the main body (10). The movable seat (42) is movably mounted on the base (41) and can move relative to the base (41) in a first direction. The mounting support (43) is detachably mounted on the movable seat (42), and / or the mounting support (43) can move relative to the movable seat (42) in a second direction. The mounting support (43) is used to mount the functional unit.

6. The spacecraft heat flux calibration device according to claim 5, characterized in that, The adjustment part (40) further includes a connector (44), which includes a drive rod (441) and a slide (442). The slide (442) is slidably engaged with the drive rod (441). When the movable seat (42) is movably mounted on the base (41) through the connector (44), the drive rod (441) extends in a first direction. And / or, when the mounting support (43) is movably mounted on the movable seat (42) through the connector (44), the drive rod (441) extends in a second direction.

7. The spacecraft heat flux calibration device according to claim 6, characterized in that, When the connector (44) is used to connect the base (41) and the movable seat (42), the connector (44) is installed at the lower end of the base (41), the base (41) is provided with a guide groove (413), the guide groove (413) extends along the first direction, the upper part of the slide (442) passes through the guide groove (413) and is connected to the movable seat (42), and the slide (442) slides in the guide groove (413).

8. The spacecraft heat flux calibration device according to claim 6, characterized in that, When the connector (44) is used to connect the movable seat (42) and the mounting support (43), the connector (44) is installed on the upper end of the movable seat (42), and the upper end of the slide (442) is connected to the mounting support (43).

9. The spacecraft heat flux calibration device according to claim 6, characterized in that, The mounting support (43) includes a first bracket (431) and a second bracket (432). The first bracket (431) includes a main arm (433) and mounting arms (434) located at both ends of the main arm (433). The lower end of the main arm (433) is connected to the connector (44). The mounting arms (434) are used to mount the second bracket (432).

10. A spacecraft heat flux calibration system, characterized in that, The device includes a spacecraft heat flow calibration device as described in any one of claims 1 to 9, and a vacuum container, wherein a guide matching part (50) is installed inside the vacuum container, the guide matching part (50) cooperating with a guide part on the main body (10) to facilitate sending the main body (10) into the vacuum container and fixing it.

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