One-dimensional developed radiator based on a two-way counterflow single-phase fluid circuit system

Abstract

The application provides a bidirectional convection type single-phase fluid circuit system and a one-dimensional expansion radiator, and the circuit system comprises: an in-radiator plate pipeline system and an out-radiator plate pipeline system, the in-radiator plate pipeline system is two convection type single-phase fluid pipelines in the same dimensional plane; the one-dimensional expansion radiator comprises the bidirectional convection type single-phase fluid circuit system, a radiator structure plate, radiator suspension support structures and hinges, the in-radiator plate pipeline system is embedded in an intermediate interlayer; the two radiator suspension support structures and the two hinges are symmetrically arranged on the same side of the radiator structure plate. The application makes the heat dissipation function more efficient under the condition that the volume is limited after the radiator is expanded; the coaxial degree control of the fluid pipeline convergence cluster interface, the suspension support structure and the hinge improves the expansion reliability; the in-plate skeleton type sandwich structure makes the radiator light; and the full welding process guarantees the sealing property of the pipeline system.

Description

Technical Field

[0001] This invention relates to the field of spacecraft thermal control technology, specifically to a bidirectional convection single-phase fluid loop system and a one-dimensional deployable radiator. Background Technology

[0002] As spacecraft orbital environments become increasingly complex, and payload functions become more diverse and require higher operational precision, the overall heat dissipation of spacecraft increases. Traditional passive thermal control methods are no longer sufficient to meet the thermal control requirements of payload operation and ensure the high precision of the structural platform. While the gradually adopted radiator cooling method can enhance heat dissipation capacity, further challenges remain. These include increasing the radiator area to exceed the fairing envelope size, arranging more efficient heat dissipation channels within the same limited area after deployment, and reliably balancing the high-sealing fluid piping with the deployment torque.

[0003] A Chinese patent with publication number CN103274061B discloses a heat pipe-fluid loop coupled thermal radiator for spacecraft. It is a plate-type radiator purely attached to the structural platform, lacking deployment capability, and consists only of heat pipes connected to fluid pipes on both sides by welding or adhesive bonding. This method does not create a typical loop for the fluid pipes, and its heat dissipation capacity and thermal control still need improvement.

[0004] Existing Chinese patents, CN114852378A and CN112484541B, disclose a deployable thermal radiator based on a single-phase fluid loop. Both patents employ a unidirectional S-shaped layout for the single-phase fluid piping, and this layout does not further explore the utilization rate of the cooling fluid direction of the single-phase fluid.

[0005] Therefore, there is a need to provide a bidirectional convection single-phase fluid loop system and a one-dimensional deployable radiator to improve the utilization rate of heat dissipation capacity under the same radiator plate volume limitation after the radiator is deployed. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a bidirectional convection single-phase fluid loop system and a one-dimensional deployable radiator.

[0007] According to the present invention, a bidirectional convection single-phase fluid loop system includes: an internal piping system and an external piping system of the radiator plate. The internal piping system of the radiator plate consists of two convection single-phase fluid pipelines in the same plane, both of which are S-shaped and include an external pipeline and an internal pipeline. The external pipeline and the internal pipeline are arranged in the convection direction. The high-temperature outlet of the external single-phase fluid of the external pipeline is correspondingly provided with the low-temperature inlet of the internal single-phase fluid of the internal pipeline. The low-temperature inlet of the external single-phase fluid of the external pipeline is correspondingly provided with the high-temperature outlet of the internal single-phase fluid of the internal pipeline.

[0008] The external piping system of the radiator plate includes a low-temperature single-phase fluid pipeline and a high-temperature single-phase fluid pipeline. The outlet of the low-temperature single-phase fluid pipeline is connected to the low-temperature inlet of the inner single-phase fluid and the low-temperature inlet of the outer single-phase fluid, respectively. The inlet of the high-temperature single-phase fluid pipeline is connected to the high-temperature outlet of the outer single-phase fluid and the high-temperature outlet of the inner single-phase fluid, respectively. The heat exchanger, the low-temperature single-phase fluid pipeline, the internal piping system of the radiator plate, and the high-temperature single-phase fluid pipeline are sequentially connected to form a loop.

[0009] Preferably, the internal piping system of the radiator plate is installed inside the radiator structural plate, and the external piping system of the radiator plate is installed outside the radiator structural plate. The external single-phase fluid high-temperature outlet, the internal single-phase fluid low-temperature inlet, the internal single-phase fluid high-temperature outlet, and the external single-phase fluid low-temperature inlet are sequentially arranged on the same side of the radiator structural plate. The external piping and the internal piping are arranged in parallel and the temperature control area is evenly distributed between them.

[0010] Preferably, both the outer pipeline and the inner pipeline include multiple straight pipelines connected in sequence, with adjacent straight pipelines connected by right-angle bends. The cavity of the straight pipeline is elliptical, and the cavity of the straight pipeline has evenly distributed multi-toothed channels with convex round rectangles.

[0011] The one-dimensional unfolding radiator provided by the present invention adopts the above-mentioned bidirectional convection single-phase fluid loop system and further includes a radiator structure plate, a radiator suspension support structure and a hinge. The radiator structure plate is a skeleton sandwich structure, including upper and lower skin layers and an intermediate layer. The pipeline system inside the radiator plate is embedded in the intermediate layer.

[0012] The two radiator suspension support structures and the two hinges are symmetrically arranged on the same side of the radiator structure plate. The external piping system of the radiator plate and the radiator suspension support structure are both arranged on the same side of the radiator structure plate. A channel is formed inside the radiator suspension support structure. One end of the two radiator suspension support structures is connected to the low temperature single-phase fluid pipeline and the high temperature single-phase fluid pipeline, respectively. The other end of the two radiator suspension support structures is connected to the heat exchanger, respectively.

[0013] The radiator suspension support structure includes a rotary joint and a floating support. The rotary joint and the floating support cooperate to form a rotating pair. The central axes of the two rotary joints are coaxial with the rotation axes of the two hinges. The radiator suspension support structure and the hinges are all fastened to the radiator structure plate. The radiator structure plate can rotate around the central axis of the rotary joint.

[0014] Preferably, the intermediate interlayer includes multiple carbon fiber composite rectangular tubes for supporting the internal piping system of the radiator plate. The straight pipes of the external piping system of the radiator plate are arranged parallel or perpendicular to the composite rectangular tubes. The multiple composite rectangular tubes cooperate to form the supporting skeleton of the radiator structural plate. The pyrotechnic unlocking port and hinge mounting seat of the radiator structural plate are respectively provided with inclined support and reinforcement rectangular tubes.

[0015] Preferably, the radiator suspension support structure is symmetrically arranged about the central axis of the radiator structure plate. A plate structure protrusion is formed in the middle of the side of the radiator structure plate connected to the radiator suspension support structure. Composite material embedded blocks are symmetrically arranged on the plate structure protrusion. The composite material embedded blocks include suspension support structure embedded blocks and hinge embedded blocks. The hinge embedded blocks are arranged inside the suspension support structure embedded blocks and are fastened to the hinge. The suspension support structure embedded blocks are fastened to the rotary joint.

[0016] Preferably, the low-temperature single-phase fluid pipeline is located on the lower side of the plate structure protrusion, and the high-temperature single-phase fluid pipeline is located on the upper side of the plate structure protrusion. Both the low-temperature single-phase fluid pipeline and the high-temperature single-phase fluid pipeline are arranged parallel to the radiator structure plate, and the distance between them and the radiator structure plate is the same. The two ends of the low-temperature single-phase fluid pipeline and the high-temperature single-phase fluid pipeline are respectively connected to the pipeline system inside the radiator plate. The middle part of the low-temperature single-phase fluid pipeline and the high-temperature single-phase fluid pipeline are respectively provided with a tee joint that communicates with the radiator suspension support structure.

[0017] Preferably, the floating support includes a universal joint formed by two floating support rings and multiple cross pins. The floating support includes a first floating support and a second floating support respectively disposed on both sides of the rotating joint. The first floating support is fastened to the embedded block of the suspension support structure, and the second floating support is fastened to the celestial body.

[0018] Preferably, the rotary joint includes an inner channel and an outer channel, one end of the inner channel is inserted into one end of the outer channel and the two are sealed together by a sealing ring, and the other end of the inner channel and the outer channel are provided with rigid ball head sealing connectors.

[0019] Preferably, the protruding side of the plate structure is provided with multiple clamp brackets for supporting the pipes of the external piping system of the radiator plate. The clamp brackets and the external piping system of the radiator plate are arranged on the same vertical plane, and the multiple clamp brackets are arranged symmetrically about the radiator structure plate. The multiple clamp brackets are arranged symmetrically about the axis of symmetry of the two hinges. The clamp bracket located in the center is arranged on the axis of symmetry of the two hinges. The distance between the clamp brackets located at both ends and their corresponding external single-phase fluid high-temperature outlet and external single-phase fluid low-temperature inlet is between 250-300mm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention utilizes a dual-flow single-phase fluid loop system with an internal radiant plate arrangement, a fluid pipeline distribution layout for the two external radiant loop systems, and a torque balancing matching component that rigidly connects the external radiant loop systems to the deployment assembly. This design incorporates a multi-tooth cross-section adaptable to the single-phase fluid loop pipelines, a lightweight radiant plate structure without a honeycomb core, and a highly airtight loop connection process. Under the same radiant plate volume constraints after deployment, the bidirectional convective single-phase fluid S-shaped pipeline layout offers higher heat dissipation efficiency compared to a unidirectional S-shaped fluid pipeline arrangement. Coaxiality control of the high and low temperature single-phase fluid convergence interface, the suspension support structure, and the hinges improves the reliability of radiator deployment. A lightweight, sandwich-type reinforcing structure within the radiant plate supports the fluid pipelines, replacing the honeycomb core and reducing the structural plate's weight. The fully welded pipeline design enhances the sealing of the fluid pipelines, and the type of pipeline joints provides inspectable and measurable points for the fluid pipelines. Attached Figure Description

[0022] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram illustrating the working principle of the bidirectional convection single-phase fluid loop system of this invention.

[0024] Figure 2 This is a schematic diagram illustrating the overall layout of the one-dimensional unfolded radiator, which is the main feature of this invention.

[0025] Figure 3 This invention primarily embodies a side view of the overall layout of a one-dimensional unfolded radiator;

[0026] Figure 4 This is a schematic diagram of the straight pipeline of the one-dimensional unfolding radiator, which is the main feature of this invention.

[0027] Figure 5This is a schematic diagram of the pipe joint structure of the one-dimensional unfolding radiator, which is the main feature of this invention.

[0028] Figure 6 This is a schematic diagram of the composite material rectangular tube structure that mainly embodies the one-dimensional unfolding radiator of the present invention;

[0029] Figure 7 This is a schematic diagram of the right-angle joint of the one-dimensional unfolding radiator, which is the main feature of this invention.

[0030] Figure 8 This is a schematic diagram of the three-way right-angle connector, which is the main feature of the present invention, representing the one-dimensional unfolding radiator.

[0031] Figure 9 This is a schematic diagram of the suspended support structure of the embedded block, which is the main feature of the one-dimensional unfolding radiator in this invention.

[0032] Figure 10 This is a schematic diagram of the hinge embedded block, which is the main feature of the present invention, representing the structure of a one-dimensional unfolding radiator.

[0033] Figure 11 This is a schematic diagram of the radiator suspension support structure, which mainly embodies the one-dimensional unfolding radiator of the present invention.

[0034] Figure 12 This is a cross-sectional view of the radiator suspension support structure, which is the main feature of the present invention, representing the one-dimensional unfolded radiator.

[0035] Figure 13 This is a schematic diagram of the floating support structure of the one-dimensional unfolding radiator, which is the main feature of this invention.

[0036] Figure 14 This is a schematic diagram of the clamp support for the one-dimensional unfolding radiator, which is the main feature of this invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] Detailed Implementation

[0039] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0040] Example 1

[0041] like Figure 1-3As shown, a bidirectional convection single-phase fluid loop system provided by the present invention includes: an inner piping system 2 and an outer piping system 3. The inner piping system 2 consists of two convection single-phase fluid pipelines in the same plane, both with an S-shaped configuration, including an outer pipeline 21 and an inner pipeline 22. The outer pipeline 21 and the inner pipeline 22 are arranged in the convection direction. The high-temperature outlet 211 of the outer single-phase fluid of the outer pipeline 21 and the low-temperature inlet 221 of the inner single-phase fluid of the inner pipeline 22 are correspondingly arranged. The low-temperature inlet 212 of the outer single-phase fluid of the outer pipeline 21 and the low-temperature inlet 221 of the inner pipeline 22 are correspondingly arranged. The high-temperature outlet 222 of the inner single-phase fluid in the radiator plate is correspondingly provided; the outer piping system 3 of the radiator plate includes a low-temperature single-phase fluid pipeline 31 and a high-temperature single-phase fluid pipeline 32. The outlet of the low-temperature single-phase fluid pipeline 31 is connected to the low-temperature inlet 221 of the inner single-phase fluid and the low-temperature inlet 212 of the outer single-phase fluid, respectively. The inlet of the high-temperature single-phase fluid pipeline 32 is connected to the high-temperature outlet 211 of the outer single-phase fluid and the high-temperature outlet 222 of the inner single-phase fluid, respectively. The heat exchanger, the low-temperature single-phase fluid pipeline 31, the inner piping system 2 of the radiator plate and the high-temperature single-phase fluid pipeline 32 are connected in sequence to form a loop.

[0042] The radiator plate internal piping system 2 is installed in the same plane as the radiator structural plate 1, and the radiator plate external piping system 3 is installed outside the radiator structural plate 1. The external single-phase fluid high temperature outlet 211, the internal single-phase fluid low temperature inlet 221, the internal single-phase fluid high temperature outlet 222, and the external single-phase fluid low temperature inlet 212 are sequentially arranged on the same side of the radiator structural plate 1. The external piping 21 and the internal piping 22 are arranged in parallel and the temperature control area is evenly distributed.

[0043] like Figure 4 and 5 As shown, both the outer pipe 21 and the inner pipe 22 include multiple sequentially connected straight pipes 23. Adjacent straight pipes 23 are connected by right-angle elbows 24. The cavity of the straight pipe 23 is elliptical, and the cavity of the straight pipe 23 has evenly distributed multi-toothed channels with convex rounded rectangles. The cross-section of the straight pipe 23 is finned, the inner cavity is elliptical, and the cavity has multi-toothed channels with evenly distributed channels and convex rounded rectangles. The straight pipes 23 are connected by right-angle elbows 24 to form a loop. The fluid inlet and outlet ports of the radiator plate inner pipe system 2 are connected to pipe joints 25, and the fluid is transferred to the radiator plate outer pipe system 3 through adapters 251, joint seats 252, and joint liners 253. The adapter 251 has the same elliptical cross-section as the straight pipe 23, and the connector liner 253 has the same circular cross-section as the fluid pipe of the radiator plate external piping system 3. The two are connected by a connector seat 252. The density, configuration, and size of the groove are defined based on the maximum heat dissipation effect of single-phase heat flow and are achieved through a pultrusion process.

[0044] The loop system of this application is a convection single-phase fluid loop system inside the radiator structure plate and an outflow single-phase fluid loop system outside the plate. Before the high and low temperature single-phase fluids are combined and bundled, the single-phase fluids at the same temperature are in parallel. After the high and low temperature single-phase fluids are combined and bundled, the high and low temperature single-phase fluids are in series with cold in and hot out.

[0045] This application utilizes a two-way convection single-phase fluid loop system with an internal radiator arrangement and a two-way convection loop system with a separate fluid pipeline layout outside the radiator. This design adapts to the multi-tooth cross-section of the single-phase fluid loop pipeline and features a high-sealing loop connection process. As a result, under the same radiator plate volume limitation after the radiator is deployed, the two-way convection single-phase fluid S-shaped pipeline layout has higher heat dissipation efficiency compared to the unidirectional S-shaped fluid pipeline arrangement.

[0046] Example 2

[0047] Based on Example 1, such as Figure 6-14 As shown, a one-dimensional deployable radiator provided by the present invention adopts the bidirectional convection single-phase fluid loop system of Embodiment 1, and further includes a radiator structure plate 1, a radiator suspension support structure 4, and a hinge 6. The radiator structure plate 1 is a skeleton-type sandwich lightweight reinforcing structure, including two bonded upper and lower skins and an intermediate layer. The skins can be made of aluminum alloy or carbon fiber. The internal piping system 2 of the radiator plate is embedded in the intermediate layer. The overall structure of the radiator structure plate 1 is symmetrical about its central axis, and the overall piping system adopts a high-sealing welding process. Two radiator suspension support structures 4 and two hinges 6 are symmetrically arranged on the same side of the radiator structure plate 1. The external piping system 3 of the radiator plate and the radiator suspension support structure 4 are both located on the same side of the radiator structure plate 1. Channels are formed inside the radiator suspension support structure 4. One end of each of the two radiator suspension support structures 4 is connected to a low-temperature single-phase fluid pipeline 31 and a high-temperature single-phase fluid pipeline 32, respectively. The other end of each of the two radiator suspension support structures 4 is connected to a heat exchanger. The radiator suspension support structure 4 includes a rotating joint 41 and a floating support 42. The rotating joint 41 and the floating support 42 cooperate to form a rotating pair. The central axis of the two rotating joints 41 is coaxial with the rotation axis of the two hinges 6. The radiator suspension support structure 4 and the hinges 6 are all rigidly connected to the radiator structure plate 1, allowing the radiator structure plate 1 to rotate around the central axis of the rotating joint 41. The two converging fluid streams outside the radiator structure plate 1 are rigidly connected to the radiator suspension support structure 4 and are coaxial with the hinges 6 of the radiator structure plate 1.

[0048] The intermediate interlayer includes multiple carbon fiber composite rectangular tubes 11 for supporting the internal piping system 2 of the radiator plate. The material is carbon fiber composite material M40 or M55J. Adhesive molding is used at the intersections of the skin of the composite rectangular tubes 11 with the single-phase fluid piping, the composite rectangular tubes 11, and each embedded block. The straight pipes 23 of the external piping system 3 of the radiator plate are arranged parallel or perpendicular to the composite rectangular tubes 11. Multiple composite rectangular tubes 11 cooperate to form the supporting skeleton of the radiator structural plate 1. Slanted supporting reinforcing rectangular tubes are respectively provided at the pyrotechnic unlocking port 14 and the hinge mounting base of the radiator structural plate 1. The composite rectangular tubes 11 cover the overall shape of the radiator structural plate 1. The composite rectangular tubes 11 at the corners of the shape are connected and glued together by right-angle connectors 121, and internally connected and glued together by tee right-angle connectors 122. The composite rectangular tubes 11 are evenly distributed horizontally and vertically between the external piping 21 and the external frame, and between the internal piping 22 and the external piping 21. The composite rectangular tube at the unlocking port 14 and the hinge mounting base is reinforced with a sloping support; the cross points of the supports are all glued and plugged in, using structural adhesive.

[0049] The radiator suspension support structure 4 is symmetrically arranged about the central axis of the radiator structure plate 1. A plate structure protrusion 16 is formed in the middle of the side where the radiator structure plate 1 connects to the radiator suspension support structure 4. Composite material embedded blocks 13 are symmetrically arranged on the plate structure protrusion 16. The composite material embedded blocks 13 include suspension support structure embedded blocks 131 and hinge embedded blocks 132. The suspension support structure embedded blocks 131 are symmetrically arranged at both ends of the plate structure protrusion 16, and the hinge embedded blocks 132 are located inside the suspension support structure embedded blocks 131, forming a symmetrical double-sided layout about the central axis of the radiator structure plate 1. The composite material embedded blocks 13 and the frame of the radiator structure plate 1 are connected by an insert, using structural adhesive. The hinge embedded blocks 132 are fastened to the hinge 6, and the suspension support structure embedded blocks 131 are fastened to the rotary joint 41.

[0050] The low-temperature single-phase fluid pipeline 31 is located on the lower side of the plate structure protrusion 16, and the high-temperature single-phase fluid pipeline 32 is located on the upper side of the plate structure protrusion 16. The low-temperature single-phase fluid pipeline 31 and the high-temperature single-phase fluid pipeline 32 are arranged parallel to the radiator structure plate 1, and the distance between them and the radiator structure plate 1 is the same. The two ends of the low-temperature single-phase fluid pipeline 31 and the high-temperature single-phase fluid pipeline 32 are respectively connected to the pipeline system 2 inside the radiator plate. The middle part of the low-temperature single-phase fluid pipeline 31 and the high-temperature single-phase fluid pipeline 32 are respectively provided with a T-joint 33 that connects to the radiator suspension support structure 4. The through holes at both ends of the T-joint 33 are provided on the low-temperature single-phase fluid pipeline 31, and the third through hole in the middle is horizontally connected to a pipeline, which then extends downward through a two-way connector and connects to one end of the radiator suspension support structure 4, thereby connecting with the internal channel of the radiator suspension support structure 4. The T-joint 33 on the high-temperature single-phase fluid pipeline 32 are similarly arranged. The single-phase high-temperature fluids in the inner and outer circuits of the radiator structure plate 1 are bundled and converged at the outer side of the plate structure protrusion 16 below the radiator structure plate 1; the single-phase low-temperature fluids in the inner and outer circuits are bundled and converged at the outer side of the plate structure protrusion 16 above the radiator structure plate 1. The bundled positions of the tees for the high and low temperature single-phase fluid circuits are symmetrical about the vertical distance from the center of the radiator structure plate 1; symmetrical about the horizontal distance from the center of the radiator structure plate 1; and flush with the side. The pipelines before and after the bundle convergence must not interfere with the unfolded state of the radiator structure plate 1. The length of the welded section of the pipeline is selected based on the minimum value of the welding influence zone, taking into account the normal spatial distance of the radiator structure plate 1.

[0051] At both ends of the radiator structure plate 1, the high and low temperature single-phase fluid loop tees converge and connect to one end of the rotating joint 41 via multiple L-shaped pipes. The other end of the rotating joint 41 is connected to the corresponding hot and cold fluids of the heat exchanger via pipes. The layout of the radiator suspension support structure 4 is symmetrical about the center of the radiator structure plate 1, and the pipes connected to both ends of the radiator suspension support structure 4 must be coaxial with it and the hinges to complete the one-dimensional 90° unfolding of the radiator after unlocking. That is, during the unfolding process of the radiator structure plate 1, the two hinges 6 must be coaxial with the confluence outlets of the high and low temperature fluid pipes and the connected rotating joint 41.

[0052] The rotary joint 41 includes an inner channel 411 and an outer channel 412. One end of the inner channel 411 is inserted into one end of the outer channel 412, and the two are sealed together by a sealing ring 413. The other ends of both the inner channel 411 and the outer channel 412 are provided with rigid ball-head sealing connectors 414. Flanges and pin holes are provided at the outer ends of both the inner channel 411 and the outer channel 412. Two grooves in the inner cavity of the outer channel 412 are used to hold the sealing rings 413. The connection between the inner and outer channel sections and the fluid pipeline section is designed as a screw connection using rigid ball-head sealing connectors 414 and sealing screws 415. The rotation of the rotary joint 41 must be balanced with the torque of the hinge 6's unfolding.

[0053] The floating support 42 includes a simple universal joint formed by two floating support rings 421 and multiple cross pins 422, which are coaxially fitted with the flanges of the inner and outer channels of the rotating joint 41. The floating support 42 includes a first floating support and a second floating support respectively set on both sides of the rotating joint 41. The first floating support near the cluster tee is fastened to the suspended support structure embedded block 131 by screws 423 and nuts 424, and the second floating support near the hinge 6 is fastened to the star.

[0054] Multiple clamp supports 5 are provided on the side of the plate structure protrusion 16 to support the pipes of the radiator plate external piping system 3. The clamp supports 5 and the radiator plate external piping system 3 are set on the same vertical plane, and the multiple clamp supports 5 are arranged symmetrically about the radiator structure plate 1 vertically and symmetrically about the axis of symmetry of the two hinges 6 horizontally. The clamp support 5 located in the center is set on the axis of symmetry of the two hinges 6. The distance between the clamp supports 5 at both ends and their corresponding external single-phase fluid high temperature outlet 211 and external single-phase fluid low temperature inlet 212 is between 250-300mm. The clamp supports 5 are glued to the side of the plate structure protrusion 16 of the radiator structure plate 1 and the coaxial position of the pipes. The first clamp position of the high and low temperature single-phase fluid circuit is balanced by the plate structure protrusion 16 envelope distance from the high temperature outlet and the low temperature inlet clamp supports 5 at the maximum range position of the pipes supported, and one is evenly distributed between the floating support 42 and the hinge 6, symmetrically arranged vertically at the mid-surface height of the radiator structure plate 1. Preferably, three clamp brackets 5 are provided on the top and bottom of this application. One clamp bracket 5 is provided on the top and bottom of the two hinges 6 on the plate structure protrusion 16 at the axis of symmetry. One clamp bracket 5 is provided at a horizontal distance of 250-300mm between the lower side of the plate structure protrusion 16 and the external single-phase fluid high-temperature outlet 211, and one clamp bracket 5 is symmetrically provided on the upper side. One clamp bracket 5 is provided at a horizontal distance of 250-300mm between the upper side of the plate structure protrusion 16 and the external single-phase fluid low-temperature inlet 212, and one clamp bracket 5 is symmetrically provided on the lower side. The clamp bracket 5 includes a bracket 51, a heat insulation pad 52, and a clamp 53 from bottom to top, and is fastened by a bolt assembly 54. The bolt assembly 54 includes screws, spring washers, flat washers, and self-locking nuts. The clamp bracket 5 is designed with a weight-reducing groove. The two fluid pipelines of the radiator plate external piping system 3 form a two-dimensional space and corner avoidance. The pipelines are limited by the clamp brackets 5, and the limiting of the clamp brackets 5 takes into account the weak rigidity mutual adaptation of the pipelines.

[0055] The entire radiator piping system is integrated using welded connections. All piping and adapters inside and outside the radiator structural plate 1 are connected using brazing processes. Leak testing of the entire fluid circuit is performed to ensure high sealing performance. For the arc connection section in the S-shaped fluid circuit, metal fittings with minimum bending radii are selected and machined. At the weld joints of welded components, weld groove notches are designed to ensure a smooth weld surface that matches the dimensional accuracy of the upper and lower skins.

[0056] Given the same radiator plate volume constraint after deployment, a bidirectional convection single-phase fluid S-shaped layout is more efficient in heat dissipation design than a unidirectional S-shaped fluid piping arrangement. The fluid piping is supported by a lightweight sandwich-style reinforcing structure within the radiator plate, eliminating the honeycomb core and maintaining both rigidity and strength while reducing weight. The piping outside the radiator plate features rigidly connected, suspended support rotating components, ensuring coaxiality and torque balance with the radiator plate's deployment movement.

[0057] This application utilizes a two-way convection single-phase fluid loop system with an internal radiator plate arrangement, a fluid pipeline diversion layout for the two-way convection loop system outside the radiator plate, and a torque balancing matching component that rigidly connects the two-way convection loop system outside the radiator plate to the deployment assembly. It features a multi-tooth cross-section adaptable to the single-phase fluid loop pipeline, a lightweight radiator plate structure without a honeycomb core, and a highly sealed loop connection process design. This allows for more efficient heat dissipation compared to a unidirectional S-shaped fluid pipeline arrangement, given the same radiator plate volume limitation after deployment. Coaxiality control of the high and low temperature single-phase fluid convergence interface with the radiator's suspension support structure 4 and hinge 6 improves the reliability of radiator deployment. The inner skeleton-type sandwich lightweight reinforcement structure of the radiator structure plate 1 supports the fluid pipeline instead of a honeycomb core, reducing the weight of the structure plate. The fully welded pipeline design improves the sealing performance of the fluid pipeline, and the type of pipeline joints provides inspectable and measurable points for the fluid pipeline.

[0058] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0059] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A one-dimensional deployable radiator based on a bidirectional convection single-phase fluid loop system, characterized in that, The bidirectional convection single-phase fluid loop system includes: an inner pipeline system (2) of the radiator plate and an outer pipeline system (3) of the radiator plate. The inner pipeline system (2) of the radiator plate consists of two convection single-phase fluid pipelines in the same plane, both of which are S-shaped and include an outer pipeline (21) and an inner pipeline (22). The outer pipeline (21) and the inner pipeline (22) are arranged in the convection direction. The high temperature outlet (211) of the outer single-phase fluid of the outer pipeline (21) is correspondingly set with the low temperature inlet (221) of the inner single-phase fluid of the inner pipeline (22). The low temperature inlet (212) of the outer single-phase fluid of the outer pipeline (21) is correspondingly set with the high temperature outlet (222) of the inner single-phase fluid of the inner pipeline (22). The radiator plate external piping system (3) includes a low-temperature single-phase fluid pipeline (31) and a high-temperature single-phase fluid pipeline (32). The outlet of the low-temperature single-phase fluid pipeline (31) is connected to the inner single-phase fluid low-temperature inlet (221) and the outer single-phase fluid low-temperature inlet (212), respectively. The inlet of the high-temperature single-phase fluid pipeline (32) is connected to the outer single-phase fluid high-temperature outlet (211) and the inner single-phase fluid high-temperature outlet (222), respectively. The heat exchanger, the low-temperature single-phase fluid pipeline (31), the radiator plate internal piping system (2) and the high-temperature single-phase fluid pipeline (32) are connected in sequence to form a loop. The one-dimensional unfolding radiator also includes a radiator structure plate (1), a radiator suspension support structure (4), and a hinge (6). The radiator structure plate (1) is a skeleton sandwich structure, including upper and lower skin layers and an intermediate layer. The pipeline system (2) inside the radiator plate is embedded in the intermediate layer. Two radiator suspension support structures (4) and two hinges (6) are symmetrically arranged on the same side of the radiator structure plate (1). The radiator plate external piping system (3) and the radiator suspension support structure (4) are both arranged on the same side of the radiator structure plate (1). A channel is formed inside the radiator suspension support structure (4). One end of the two radiator suspension support structures (4) is connected to the low temperature single-phase fluid pipeline (31) and the high temperature single-phase fluid pipeline (32) respectively. The other end of the two radiator suspension support structures (4) is connected to the heat exchanger respectively. The radiator suspension support structure (4) includes a rotating joint (41) and a floating support (42). The rotating joint (41) and the floating support (42) cooperate to form a rotating pair. The central axis of the two rotating joints (41) is coaxial with the rotation axis of the two hinges (6). The radiator suspension support structure (4) and the hinges (6) are both fastened to the radiator structure plate (1). The radiator structure plate (1) can rotate around the central axis of the rotating joint (41).

2. The one-dimensional unfolding radiator as described in claim 1, characterized in that, The radiator plate internal piping system (2) is installed inside the radiator structure plate (1), and the radiator plate external piping system (3) is installed outside the radiator structure plate (1). The external single-phase fluid high temperature outlet (211), the internal single-phase fluid low temperature inlet (221), the internal single-phase fluid high temperature outlet (222), and the external single-phase fluid low temperature inlet (212) are sequentially arranged on the same side of the radiator structure plate (1). The external piping (21) and the internal piping (22) are arranged in parallel and the temperature control area is evenly distributed.

3. The one-dimensional unfolding radiator as described in claim 1, characterized in that, Both the outer pipeline (21) and the inner pipeline (22) include multiple straight pipelines (23) connected in sequence. Two adjacent straight pipelines (23) are connected by a right-angle elbow (24). The cavity of the straight pipeline (23) is elliptical. The cavity of the straight pipeline (23) has a uniformly distributed multi-tooth groove with a tooth shape of convex round rectangle.

4. The one-dimensional unfolding radiator as described in claim 1, characterized in that, The intermediate interlayer includes multiple carbon fiber composite rectangular tubes (11) for supporting the internal piping system (2) of the radiator plate. The straight pipes (23) of the external piping system (3) of the radiator plate are arranged parallel or perpendicular to the composite rectangular tubes (11). The multiple composite rectangular tubes (11) cooperate to form the supporting skeleton of the radiator structure plate (1). The pyrotechnic unlocking port (14) and the hinge mounting seat of the radiator structure plate (1) are respectively provided with oblique support and reinforcement rectangular tubes.

5. The one-dimensional unfolding radiator as described in claim 1, characterized in that, The radiator suspension support structure (4) is symmetrical about the central axis of the radiator structure plate (1). A plate structure protrusion (16) is formed in the middle of the side where the radiator structure plate (1) is connected to the radiator suspension support structure (4). Composite material embedded blocks (13) are symmetrically arranged on the plate structure protrusion (16). The composite material embedded block (13) includes a suspension support structure embedded block (131) and a hinge embedded block (132). The hinge embedded block (132) is arranged inside the suspension support structure embedded block (131). The hinge embedded block (132) is fastened to the hinge (6). The suspension support structure embedded block (131) is fastened to the rotating joint (41).

6. The one-dimensional unfolding radiator as described in claim 5, characterized in that, The low-temperature single-phase fluid pipeline (31) is located on the lower side of the plate structure protrusion (16), and the high-temperature single-phase fluid pipeline (32) is located on the upper side of the plate structure protrusion (16). The low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) are arranged parallel to the radiator structure plate (1), and the distance between them and the radiator structure plate (1) is the same. The two ends of the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) are respectively connected to the pipeline system (2) inside the radiator plate. The middle part of the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) are respectively provided with a tee joint (33) connected to the radiator suspension support structure (4).

7. The one-dimensional unfolding radiator as described in claim 6, characterized in that, The floating support (42) includes two floating support rings (421) and a universal joint formed by multiple cross pins (422). The floating support (42) includes a first floating support and a second floating support respectively disposed on both sides of the rotating joint (41). The first floating support is fastened to the suspended support structure embedded block (131), and the second floating support is fastened to the celestial body.

8. The one-dimensional unfolding radiator as described in claim 7, characterized in that, The rotary joint (41) includes an inner channel (411) and an outer channel (412). One end of the inner channel (411) is inserted into one end of the outer channel (412) and the two are sealed together by a sealing ring (413). The other end of the inner channel (411) and the outer channel (412) are both provided with rigid ball head sealing nozzles (414).

9. The one-dimensional unfolding radiator as described in claim 6, characterized in that, The side of the plate structure protrusion (16) is provided with a plurality of clamp brackets (5) for supporting the pipes of the radiator plate external piping system (3). The clamp brackets (5) and the radiator plate external piping system (3) are arranged on the same vertical plane. The plurality of clamp brackets (5) are arranged symmetrically about the radiator structure plate (1) vertically and symmetrically about the axis of symmetry of the two hinges (6). The clamp bracket (5) located in the center is arranged on the axis of symmetry of the two hinges (6). The distance between the clamp brackets (5) located at both ends and their corresponding external single-phase fluid high temperature outlet (211) and external single-phase fluid low temperature inlet (212) is between 250-300mm.

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