Satellite expandable radiator liquid inlet and outlet structure

Abstract

A satellite expandable radiator liquid inlet and outlet structure disclosed by the present invention comprises a radiator expansion structure, a liquid inlet and outlet mechanism and a pipeline connection mechanism, the radiator expansion structure comprises a main shaft and symmetrically arranged radiation cellular boards, the radiation cellular boards are internally provided with backflow pipelines, and the end portion of the main shaft is provided with a limiting block and the pipeline connection mechanism. A fixing ring is arranged at the other end of the spindle and provided with an arc-shaped rail groove, an arc-shaped sliding block and a plugging mechanism are slidably mounted in the arc-shaped rail groove, the arc-shaped sliding block is connected with the water inlet end, and the fixing ring is connected with the water inlet and outlet pipe. When the structure is not unfolded, sealing of the liquid inlet and outlet channel can be achieved through the sealing sliding block and the blocking mechanism, impurities are prevented from entering and media are prevented from leaking, in the unfolding process, the arc-shaped sliding block can achieve automatic unblocking and establish passage connection, and the swing pipe structure can guarantee stable communication of a backflow pipeline in various angle states; and the sealing reliability, the structural adaptability and the in-orbit operation safety of the system are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of spacecraft thermal control systems, and in particular relates to a liquid inlet and outlet structure of a satellite deployable radiator. Background Art

[0002] During a spacecraft mission, to ensure the thermal stability of its electronic equipment or payload, a radiator system is usually required to dissipate excess heat. To improve thermal control capabilities and meet stringent storage requirements, some satellite thermal control devices use a deployable radiator structure. During launch, it is folded to save cabin space, and after entering orbit, it is deployed to increase the heat dissipation area. This type of structure usually involves the coordinated work of multiple mechanisms such as inlet and outlet fluid circulation, pipe connection, and sealing control to ensure the effective circulation and reliable sealing of the heat transfer medium at different time sequences.

[0003] However, existing deployable radiator structures have limitations when it comes to sealing and switching thermal control lines. First, some devices cannot reliably seal the inlet and outlet ports when deployed, which can easily lead to the ingress of foreign matter or leakage of residual media, affecting system stability before the mission. Second, traditional systems often use flexible pipes for interconnection, which have poor connection stability and sealing reliability after repeated deployment, posing the risk of leakage due to fatigue deformation or loose connections. Furthermore, during the deployment process, some sealing structures cannot be automatically switched, requiring active drive by electric or actuator devices to release the seal and switch between interconnections. This complex structure and high control requirements increase the risk of system failure and cost burden. Summary of the Invention

[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide a satellite deployable radiator liquid inlet and outlet structure, which can realize a deployable radiator liquid inlet and outlet structure with a compact structure, reliable connection, and automatic sealing and unlocking conversion, so as to improve the safety and stability of the satellite thermal control system in orbit.

[0005] To achieve the above object, the present invention provides the following technical solutions: A satellite deployable radiator liquid inlet and outlet structure includes a radiator deployment structure, the radiator deployment structure includes a main shaft, two radiating honeycomb panels are symmetrically hinged on the main shaft surface, and return pipes are evenly laid inside the radiating honeycomb panels. A limit block is provided at the end of the main shaft, and a pipe connection mechanism is installed at the end of the limit block. The pipe connection mechanism is used to maintain the connection of the return pipes on both sides during deployment and folding; The end of the spindle away from the limit block is further provided with a liquid inlet and outlet mechanism, the end of the return pipe close to the liquid inlet and outlet mechanism is a water inlet end, the liquid inlet and outlet mechanism includes a fixed ring, an arc-shaped track groove is opened above the surface of the fixed ring, and an arc-shaped slider that coincides with the center of the fixed ring is provided on one side of the water inlet end, and the two arc-shaped sliders slide symmetrically on both sides of the arc-shaped track groove; A sealing mechanism is slidably mounted on one side of the arc-shaped track groove for sealing the water inlet in a non-expanded state.

[0006] Furthermore, a water inlet is provided at the end of the surface of the arc-shaped slider close to the radiation honeycomb panel, and the surface of the fixed ring is symmetrically connected with inlet and outlet pipes. The water inlet in the expanded state corresponds to the inlet and outlet pipes, and the end of the return pipe away from the inlet and outlet mechanism is a drain outlet. Both of the drain outlets are placed on the side of the radiation honeycomb panel close to the main axis.

[0007] Furthermore, the pipeline connection mechanism includes a fixed cylinder fixed at the end of the limit block, the interior of the fixed cylinder is hollow, and the fixed cylinder is respectively provided with two arc-shaped concave surfaces, and a plurality of support bars are evenly arranged inside the arc-shaped concave surfaces for support, and the space between two adjacent support bars is hollowed out, and a swing tube is rotatably installed on the inner side of the two arc-shaped concave surfaces.

[0008] Furthermore, the swing tube is connected to the interior of the fixed tube, and a butt joint is provided on one side of the end of the swing tube, and two ends of the butt joint are respectively connected to two drain outlets.

[0009] Furthermore, the side of the fixing ring close to the radiation honeycomb panel is the front side and the other side is the back side. The inlet and outlet pipes are placed on the front side of the fixing ring. The inlet and outlet pipes are U-shaped and go around from the front side of the fixing ring to the back side and are connected to the satellite. Two fixing plates are symmetrically provided on the outer surface of the fixing ring for fixing the inlet and outlet pipes.

[0010] Furthermore, arc-shaped sliding holes are provided at both ends of the arc-shaped track groove, the water inlet and outlet pipes correspond to the arc-shaped sliding holes, and the arc-shaped sliders are placed inside the arc-shaped sliding holes when the radiation honeycomb panel is unfolded.

[0011] Furthermore, a sealing slider is slidably installed inside the arc-shaped sliding hole, and a first spring is installed at the bottom of the arc-shaped sliding hole. The first spring applies a thrust toward the arc-shaped track groove to the sealing slider. When the radiation honeycomb panel is not unfolded, the sealing slider seals the inlet and outlet pipe ports.

[0012] Furthermore, a track limiting groove is provided on the inner wall of the arc-shaped track groove close to the front side, and the sealing mechanism includes a moving cylinder, the hollow end inside the moving cylinder is open, and a lip plate is provided on the outer side of the port of the moving cylinder, and the lip plate slides on the inner side of the track limiting groove, and a blocking plug is slidably installed inside the moving cylinder, and a sealing cone surface is provided on the end of the blocking plug, and the sealing cone surface seals the water inlet in the unfolded state.

[0013] Furthermore, a fixing rod is provided on the side of the blocking plug facing away from the sealing cone surface, the fixing rod passes through the moving cylinder, a second spring is sleeved on the surface of the fixing rod, the second spring is placed inside the moving cylinder, the second spring applies a thrust to the blocking plug in the direction of the arc-shaped slider, a limiting nut is screwed on the end of the fixing rod, the limiting nut is placed on the outside of the moving cylinder, and the limiting nut is used to limit the distance the blocking plug extends outward.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the unfolded state, the sealing slider automatically blocks the inlet and outlet pipe ports under the action of the first spring, which can effectively prevent external impurities or water vapor from entering the cooling circuit, thereby solving the problems of exposed ports and poor sealing of existing deployable radiators in the non-working state; at the same time, the first spring arranged at the bottom of the arc-shaped sliding hole has the dual functions of limiting and resetting, which can prevent the sealing slider from falling off in the folded state, thereby improving the reliability and environmental adaptability of the sealing mechanism.

[0015] During the structural deployment process, the arc-shaped slider moves along the arc-shaped track groove and enters the arc-shaped sliding hole. Combined with the squeezing action of the sealing slider, the port can be automatically unsealed, thereby automatically connecting the medium channel with the external water inlet and outlet pipes. This solves the problem of traditional structures where sealing and on-off conversion rely on external drive and lack of linkage switching, significantly simplifies the control system structure and enhances deployment reliability.

[0016] The design of the blocking mechanism cooperates with the track limit groove to achieve sliding guidance, and the second spring keeps the blocking plug constantly applying pressure to the water inlet to ensure an effective seal in the undeployed state; at the end of deployment, the arc-shaped slider applies shear force to the blocking plug to achieve automatic unlocking, avoiding the use of electronic control components, effectively improving the adaptability and sealing reliability of the mechanism, and solving the problem of complex and prone to failure of the traditional unlocking structure that relies on actuators.

[0017] The pipeline connection mechanism adopts a structure combining a fixed cylinder and a swinging tube, and cooperates with the arc-shaped concave surface and support bars, which can keep the return pipe through when the radiation honeycomb panel is at different angles, avoiding fatigue damage and unstable sealing of the flexible connection structure under complex working conditions, and improving the mechanical stability and thermal control reliability of the radiator system during on-orbit use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the present invention; Figure 4 It is a structural schematic diagram of the present invention; Figure 5 It is a structural schematic diagram of the present invention; Figure 6 It is a structural schematic diagram of the present invention; Figure 7 It is a structural schematic diagram of the present invention; Figure 8 It is a structural schematic diagram of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Radiator expansion structure; 11. Main axis; 12. Limit block; 13. Radiating honeycomb panel; 14. Return pipe; 15. Water inlet; 16. Arc-shaped slider; 161. Water inlet; 17. Drain outlet; 2. Pipe connection mechanism; 21. Fixed cylinder; 22. Arc-shaped concave surface; 23. Support bar; 24. Swinging pipe; 25. Butt-jointing pipe; 3. Liquid inlet and outlet mechanism; 31. Fixed ring; 32. Arc-shaped track groove; 321. Track limit groove; 33. Arc-shaped sliding hole; 34. Sealing slider; 35. First spring; 36. Inlet and outlet pipe; 37. Fixed plate; 4. Sealing mechanism; 41. Lip plate; 42. Moving cylinder; 43. Blocking plug; 431. Sealing cone; 44. Fixing rod; 45. Limit nut; 46. Second spring. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0021] Example 1: See Figure 1-8, a satellite deployable radiator liquid inlet and outlet structure, including a radiator deployment structure 1, the radiator deployment structure 1 includes a main shaft 11, two radiation honeycomb panels 13 are symmetrically hinged on the surface of the main shaft 11, and a return pipe 14 is evenly laid inside the radiation honeycomb panel 13. The return pipe 14 is used to provide a circulation path for the heat-conducting medium to achieve a heat dissipation function. A limit block 12 is provided at the end of the main shaft 11. The limit block 12 is used to control the rotation and deployment angle of the radiation honeycomb panel 13 to prevent excessive deployment from affecting the structural stability. A pipeline connection mechanism 2 is installed at the end of the limit block 12. The pipeline connection mechanism 2 is used to maintain the fluid connection of the return pipes 14 on both sides when the radiation honeycomb panel 13 is in different deployment states and to ensure the sealing stability of the connection; an inlet and outlet liquid mechanism 3 is also provided on the end of the main shaft 11 away from the limit block 12. The inlet and outlet liquid mechanism 3 is the starting and ending node of the medium circulation, and the return pipe The end of the channel 14 close to the inlet and outlet mechanism 3 is the water inlet end 15, which is the inlet end for medium injection. The inlet and outlet mechanism 3 includes a fixed ring 31, which is a basic supporting component for connection and diversion. An arc-shaped track groove 32 is provided above the surface of the fixed ring 31. The arc-shaped track groove 32 is used to guide the moving trajectory of the arc-shaped slider 16. An arc-shaped slider 16 coinciding with the center of the fixed ring 31 is provided on one side of the water inlet end 15. The arc-shaped slider 16 moves along the arc-shaped track groove 32 to realize the squeezing operation of the sealing slider 34, thereby opening or closing the medium channel. The two arc-shaped sliders 16 slide symmetrically on both sides of the arc-shaped track groove 32 to drive the symmetrical movement of the structure and improve the coordination of the system; a sealing mechanism 4 is slidably installed on one side of the arc-shaped track groove 32 to seal the water inlet 161 in the non-expanded state to prevent external foreign matter from entering or medium leakage to improve the overall sealing reliability.

[0022] See Figure 1-4 A water inlet 161 is provided at the end of the surface of the arc-shaped slider 16 close to the radiation honeycomb panel 13. The water inlet 161 is the initial entrance for the medium to flow into the structure. The surface of the fixed ring 31 is symmetrically connected with the inlet and outlet pipes 36. The inlet and outlet pipes 36 are U-shaped structures and realize fluid connection with the satellite cooling system. The water inlet 161 in the expanded state corresponds to the inlet and outlet pipes 36 to realize a through passage. The end of the reflux pipe 14 away from the liquid inlet and outlet mechanism 3 is a drain port 17. The drain port 17 is set on the side close to the main shaft 11 for draining the medium to complete the heat dissipation cycle. The two drain ports 17 are both placed on the side of the radiation honeycomb panel 13 close to the main shaft 11 to form a compact two-way fluid circuit.

[0023] See Figure 2-5The pipe connection mechanism 2 includes a fixed cylinder 21 fixed to the end of the limit block 12. The fixed cylinder 21 is a hollow structure and is used to accommodate a rotating component to achieve flexible connection. The fixed cylinder 21 is respectively provided with two arc-shaped concave surfaces 22. The arc-shaped concave surface 22 serves as a guide surface for the inner cavity to cooperate with the movable path of the rotating part. A plurality of support bars 23 are evenly arranged inside the arc-shaped concave surface 22 for support. The support bars 23 are used to prevent the concave surface from deforming due to long-term stress. A fluid channel is hollowed out between two adjacent support bars 23. A swing tube 24 is rotatably installed on the inner side of the two arc-shaped concave surfaces 22. The swing tube 24 cooperates with the folding and unfolding movement of the radiation honeycomb panel 13 with its rotatable characteristics to achieve a stable connection for medium flow under different working conditions.

[0024] See Figure 2-5 The swing tube 24 is connected to the interior of the fixed tube 21 to ensure that the medium can smoothly pass through the interior of the connection mechanism. A docking tube 25 is provided on one side of the end of the swing tube 24. The docking tube 25 is a rigid connecting element. The ends of the two docking tubes 25 are respectively connected to the two drain ports 17 to form a complete thermal control fluid circuit. The medium enters the system from one side, dissipates heat, and is discharged and refluxed through the other side, thereby ensuring the continuity and reliability of the system operation.

[0025] See Figure 6 The side of the fixing ring 31 close to the radiation honeycomb panel 13 is the front side, which faces the outside of the system for operation and connection, and the other side is the back side, which faces the satellite body to connect to the cooling system. The inlet and outlet pipes 36 are placed on the front side of the fixing ring 31. The inlet and outlet pipes 36 are U-shaped and go around from the front side of the fixing ring 31 to the back side and are connected to the satellite. The U-shaped structure is conducive to increasing the bending radius and reducing stress concentration. Two fixing plates 37 are symmetrically provided on the outer surface of the fixing ring 31 for fixing the inlet and outlet pipes 36. The fixing plates 37 rigidly position the inlet and outlet pipes 36 by mechanical means to prevent loosening or damage due to vibration or gravity during launch or deployment.

[0026] See Figure 6 Both ends of the arc-shaped track groove 32 are provided with an arc-shaped sliding hole 33. The arc-shaped sliding hole 33 is a restricted space adapted to the arc-shaped slider 16, which is used to accommodate the arc-shaped slider 16 and guide its direction of movement when the structure is unfolded. The water inlet and outlet pipes 36 correspond to the arc-shaped sliding hole 33 and are used to establish a pipeline connection after the structure is unfolded. When the radiation honeycomb panel 13 is unfolded, the arc-shaped slider 16 is placed inside the arc-shaped sliding hole 33, and the sealing restriction of the port is released by pressing the sealing slider 34, completing the opening of the media channel.

[0027] See Figure 6A sealing slider 34 is slidably installed inside the arc-shaped sliding hole 33. The sealing slider 34 serves as a sliding sealing component. When it is not deployed, it blocks the port of the water inlet and outlet pipe 36 to prevent dust, impurities and water vapor from entering the system. A first spring 35 is installed at the bottom of the arc-shaped sliding hole 33. The first spring 35 is a linear spring structure, one end of which is fixed to the bottom of the arc-shaped sliding hole 33, and the other end is connected to the rear of the sealing slider 34. The first spring 35 applies a thrust to the sealing slider 34 in the direction of the arc track groove 32, so that the sealing slider 34 maintains elastic reset and completes the sealing function when it is not deployed.

[0028] See Figure 6-8 The inner wall of the arc-shaped track groove 32 close to the front side is provided with a track limit groove 321. The track limit groove 321 is a guide structure for limiting the sliding range of the blocking mechanism 4. The blocking mechanism 4 includes a moving cylinder 42. The hollow end inside the moving cylinder 42 is open. The moving cylinder 42 is used to accommodate the blocking plug 43 and provide a guide structure. A lip plate 41 is provided on the outside of the port of the moving cylinder 42. The lip plate 41 is inserted into the track limit groove 321 and slides inside. The lip plate 41 cooperates with the limit groove to form a sliding guide rail structure to prevent the blocking mechanism 4 from falling off the track during the deployment process, thereby ensuring the stability and controllability of the movement. A blocking plug 43 is slidably installed inside the moving cylinder 42, and a sealing cone surface 431 is provided at the end of the blocking plug 43. The sealing cone surface 431 corresponds to the water inlet 161. When it is not deployed, it abuts against the surface of the water inlet 161 to form a reliable wedge-shaped sealing contact to prevent medium leakage or external impurities from entering.

[0029] See Figure 6-8 A fixing rod 44 is provided on the side of the blocking plug 43 away from the sealing cone surface 431. The fixing rod 44 extends in the direction of the central axis of the moving cylinder 42 to support the blocking plug 43 and provide a guiding function. A second spring 46 is sleeved on the surface of the fixing rod 44. The second spring 46 is a coil spring structure and is placed between the card grooves on both sides of the inside of the moving cylinder 42. The second spring 46 applies a thrust to the blocking plug 43 in the direction of the arc-shaped slider 16 to ensure that the blocking plug 43 continues to press the water inlet 161 to complete the sealing in the non-expanded state. The end of the fixing rod 44 is screwed with a limiting nut 45. The limiting nut 45 is placed on the threaded hole on the outside of the moving cylinder 42 to limit the maximum extension stroke of the blocking plug 43 to avoid structural jamming or obstruction of the slider due to loss of seal.

[0030] Example 2: See Figure 6In this embodiment, the arc-shaped sliding hole 33 is an arc-shaped through-groove structure, on which a sealing slider 34 is slidably installed. The sealing slider 34 is made of a high-temperature resistant polymer composite sealing material (model PTFE-HT80) and has good compression rebound performance and low-temperature adaptability; a first spring 35 is installed at the bottom of the arc-shaped sliding hole 33. The first spring 35 uses a stainless steel scroll spring (model 304-CRV10), one end of which is fixed in the elastic cavity on the back of the sealing slider 34, and the other end is fixed to the groove seat at the bottom of the arc-shaped sliding hole 33. The sealing slider 34 is pushed to fit the port of the inlet and outlet pipe 36 through the elastic force, thereby realizing automatic sealing and blocking in the non-working state; the inlet and outlet pipe 36 is made of aluminum alloy pipe (model AL6061-T6) and is provided with a rubber sealing ring embedded groove to improve the static contact sealing effect.

[0031] In traditional structures, flexible sealing caps are often used for port sealing, which can easily cause the sealing caps to fall off or deform and fail due to vibration or pressure difference during satellite transportation and launch. In contrast, the sealing slider in the structure of this embodiment has a limit groove and elastic reset design to avoid interference with the sealing state due to external impact, significantly improving sealing safety.

[0032] Example 3: See Figure 6 In this embodiment, the arc-shaped slider 16 is made of an integrated zinc-aluminum alloy (model ZL102), and a water inlet 161 is opened on one side thereof and a liquid guide groove is embedded therein; when unfolded, the arc-shaped slider 16 slides along the arc track groove 32, enters the arc sliding hole 33 and presses the sealing slider 34, so that the sealing slider 34 slides into the bottom of the arc sliding hole 33 under the reverse force of the first spring 35, so that the water inlet 161 and the port of the water inlet and outlet pipe 36 are aligned and connected, forming a complete liquid path; when unfolded to the maximum angle, the end of the arc-shaped slider 16 is engaged with the locking groove inside the arc sliding hole 33 to prevent the slider from rebounding.

[0033] Traditional sealing structures rely on electric actuators to release the seal, which increases the control circuit and weight burden and poses a risk of execution failure. This embodiment automatically completes the seal unlocking through structural linkage. The control logic is simple and reliable, and it can complete key actions in the off-power state, improving the system's adaptability and deployment safety.

[0034] Example 4: See Figure 6-8In this embodiment, the blocking mechanism 4 includes a moving cylinder 42 (made of high-strength engineering plastic PA66-GF30) and a lip plate 41 (made of flexible polyurethane, model PU-90A). The lip plate 41 slides in contact with the track limit groove 321 to ensure controlled movement of the mechanism; a blocking plug 43 is slidably installed inside the moving cylinder 42, and a sealing cone 431 is provided at the front end of the blocking plug 43. A fluororubber sealing ring is used to enhance the tightness of the cone surface; the rear end of the blocking plug 43 is connected to the limit nut 45 through a fixed rod 44, and a second spring 46 is provided on the outer surface of the fixed rod 44. The second spring 46 is a high-carbon steel spring (model 65Mn-SPR) and maintains a thrust on the sealing cone 431 when not deployed; during the deployment process, the arc-shaped slider 16 pushes the blocking mechanism 4 to slide toward the end of the track limit groove 321. The structural limit forms an obstruction, so that when the arc-shaped slider 16 continues to slide, a shear force is generated between the arc-shaped slider 16 and the blocking plug 43, thereby pulling off the sealing cone 431 to complete the unsealing.

[0035] The traditional structure using solenoid valve unlocking has low reliability in the space environment and cannot complete the unlocking operation in the power-off state; this embodiment is based on mechanical limit and shear force release, with a simple structure and higher stability in a vibration environment, meeting the needs of spacecraft use.

[0036] Example 5: See Figure 2-5 In this embodiment, the pipe connection mechanism 2 includes a fixed cylinder 21 and two arc-shaped concave surfaces 22 arranged inside the fixed cylinder 21. The arc-shaped concave surface 22 is extruded from 6063 aluminum alloy and sprayed with a fluorocarbon corrosion-resistant coating. Six groups of support bars 23 are evenly welded inside the concave surface to form a stable structure. The space between each group of support bars 23 is hollowed out as a medium channel; a swing tube 24 is rotatably installed inside the concave surface 22. The swing tube 24 is made of medical stainless steel (model 316L) and is welded to the butt pipe 25; both ends of the butt pipe 25 are respectively connected to the drain port 17 and sealed, ensuring that the fluid enters the other return pipe 14 from any honeycomb panel through the swing tube 24 and the fixed cylinder 21, so that the medium circulation is kept unobstructed when the radiation honeycomb panel 13 is at the unfolded or folded angle.

[0037] Conventional structures that use flexible bellows for connection are prone to hardening and fatigue cracking in low-temperature environments in space, affecting the stability of medium flow. In this embodiment, a rotating swinging tube mechanism is used to avoid hose fatigue fracture problems, while improving the rigidity and impact resistance of the overall thermal control system.

[0038] The working principle of the present invention is as follows: in the unfolded state, the two radiant honeycomb panels 13 are folded, and the two water inlet ends 15 are controlled to approach each other. At this time, the arc-shaped slider 16 moves out of the arc-shaped sliding hole 33. Due to the presence of the first spring 35, the sealing slider 34 is pushed out to block and seal the port of the water inlet and outlet pipe 36. One end of the first spring 35 is fixed on the sealing slider 34, and the other end is fixed to the bottom of the arc-shaped sliding hole 33, which can prevent the sealing slider 34 from falling off. At the same time, the blocking mechanism 4 seals the water inlet 161 to prevent foreign matter from entering the backflow pipe 14. When unfolded, the two radiant honeycomb panels 13 are in a horizontal state. During the expansion process, the arc-shaped slider 16 moves along the track of the arc-shaped track groove 32, so that the arc-shaped slider 16 enters the interior of the arc-shaped sliding hole 33 and squeezes the sealing slider 34, so that the sealing slider 34 moves deeper into the arc-shaped sliding hole 33. After full expansion, the water inlet 161 completely overlaps with the end of the inlet and outlet pipe 36. At this time, the medium liquid can be transported to the inlet and outlet pipe 36 through the pump body, and then sequentially passes through the arc-shaped slider 16, the water inlet end 15, the return pipe 14, and the pipe connecting mechanism 2 to be transported to the other radiation honeycomb panel 13. After heat dissipation, it flows back to the inlet and outlet pipe 36 at the other end, thereby realizing circulation; The interior of the fixed cylinder 21 is hollow, and the two swinging tubes 24 rotate inside the arc-shaped concave surface 22 respectively to prevent axial movement. Since there are multiple hollows inside the arc-shaped concave surface 22 and are supported by the support bars 23, the swinging tube 24 is connected to the interior of the fixed cylinder 21 at any angle. The ends of the two butt-joint tubes 25 are respectively connected to the two drain ports 17. When working, the medium flows into the pipe connection mechanism 2 through one drain port 17, passes through the butt-joint tube 25 and the swinging tube 24 in turn, penetrates the hollow of the arc-shaped concave surface 22, enters the interior of the fixed cylinder 21, and then flows back through the other side to the inside of the other swinging tube 24, and finally flows back to the other return pipe 14, so as to realize the connection of the two return pipes 14. This structure can ensure that the two radiation honeycomb panels 13 are in communication regardless of whether they are in a folded or unfolded state, and compared with the connection of the flexible tube, this structure has higher stability. The thrust exerted by the second spring 46 on the blocking plug 43 can ensure that the blocking mechanism 4 always keeps blocking the water inlet 161 when it is not deployed. The blocking surface is the sealing cone 431. The limiting nut 45 can limit the moving distance of the blocking plug 43. When it is deployed, the blocking mechanism 4 slides along the arc-shaped slider 16 as a whole. When the blocking mechanism 4 moves to the end of the track limiting groove 321, it will be blocked. At this time, continuing to deploy can form a shear force between the blocking plug 43 and the arc-shaped slider 16, so that the sealing cone 431 is separated from the blockage of the water inlet 161. At this time, the blocking mechanism 4 is placed At the end of the track limiting groove 321, the arc-shaped slider 16 can continue to move into the arc-shaped sliding hole 33 until it is fully expanded. During this process, the lip plate 41 is always placed in the track limiting groove 321 to prevent it from falling off. The angles of the two ends of the front of the arc track groove 32 are larger than the back, so that when the water inlet end 15 is limited by the two ends of the arc track groove 32 when it is fully expanded, there is space at the end of its front side for placing two blocking mechanisms 4. At this time, the structure can always keep the water inlet 161 sealed when it is not expanded to prevent the entry of foreign matter, but it can be automatically unlocked when it is expanded.

[0039] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A satellite deployable radiator liquid inlet and outlet structure, comprising a radiator deployment structure (1), characterized in that: The radiator deployment structure (1) comprises a main shaft (11), two radiating honeycomb panels (13) are symmetrically hinged on the surface of the main shaft (11), return pipes (14) are evenly laid inside the radiating honeycomb panels (13), a limiting block (12) is provided at the end of the main shaft (11), and a pipeline connection mechanism (2) is installed at the end of the limiting block (12), and the pipeline connection mechanism (2) is used to maintain the connection of the return pipes (14) on both sides when unfolding and folding; An end of the main shaft (11) away from the limit block (12) is further provided with a liquid inlet and outlet mechanism (3), an end of the return pipe (14) close to the liquid inlet and outlet mechanism (3) is a water inlet end (15), the liquid inlet and outlet mechanism (3) comprises a fixed ring (31), an arc-shaped track groove (32) is provided above the surface of the fixed ring (31), and an arc-shaped slider (16) coinciding with the center of the fixed ring (31) is provided on one side of the water inlet end (15), and the two arc-shaped sliders (16) slide symmetrically on both sides of the arc-shaped track groove (32); A sealing mechanism (4) is slidably mounted on one side of the arc-shaped track groove (32) for sealing the water inlet (161) in a non-expanded state.

2. The satellite deployable radiator liquid inlet and outlet structure according to claim 1, characterized in that: A water inlet (161) is provided at the end of the surface of the arc-shaped slider (16) on one side close to the radiation honeycomb panel (13); an inlet and outlet pipe (36) is symmetrically connected to the surface of the fixing ring (31); the water inlet (161) in the unfolded state corresponds to the inlet and outlet pipe (36); an end of the return pipe (14) facing away from the liquid inlet and outlet mechanism (3) is a drain outlet (17); and both drain outlets (17) are located on the side of the radiation honeycomb panel (13) close to the main shaft (11).

3. The satellite deployable radiator liquid inlet and outlet structure according to claim 2, characterized in that: The pipeline connection mechanism (2) includes a fixed cylinder (21) fixed to the end of the limit block (12), the interior of the fixed cylinder (21) is hollow, and the fixed cylinder (21) is respectively provided with two arc-shaped concave surfaces (22), and a plurality of support bars (23) are evenly arranged inside the arc-shaped concave surfaces (22) for support, and the space between two adjacent support bars (23) is hollowed out, and a swing tube (24) is rotatably installed inside the two arc-shaped concave surfaces (22).

4. The satellite deployable radiator liquid inlet and outlet structure according to claim 3, characterized in that: The swing tube (24) is connected to the interior of the fixed tube (21), and a butt joint tube (25) is provided at one end of the swing tube (24), and the two ends of the butt joint tube (25) are respectively connected to the two drain outlets (17).

5. The satellite deployable radiator liquid inlet and outlet structure according to claim 2, characterized in that: The side of the fixing ring (31) close to the radiation honeycomb panel (13) is the front side and the other side is the back side. The water inlet and water outlet pipe (36) is placed on the front side of the fixing ring (31). The water inlet and water outlet pipe (36) is in a U-shaped structure and goes around from the front side of the fixing ring (31) to the back side and is connected to the satellite. Two fixing plates (37) are symmetrically provided on the outer surface of the fixing ring (31) for fixing the water inlet and water outlet pipe (36).

6. The satellite deployable radiator liquid inlet and outlet structure according to claim 5, characterized in that: Both ends of the arc-shaped track groove (32) are provided with arc-shaped sliding holes (33), the water inlet and outlet pipes (36) correspond to the arc-shaped sliding holes (33), and when the radiation honeycomb panel (13) is unfolded, the arc-shaped sliding block (16) is placed inside the arc-shaped sliding hole (33).

7. The satellite deployable radiator liquid inlet and outlet structure according to claim 6, characterized in that: A sealing slider (34) is slidably installed inside the arc-shaped sliding hole (33), and a first spring (35) is installed at the bottom of the arc-shaped sliding hole (33). The first spring (35) applies a thrust to the sealing slider (34) in the direction of the arc-shaped track groove (32). When the radiation honeycomb panel (13) is not unfolded, the sealing slider (34) seals the port of the inlet and outlet pipe (36).

8. The satellite deployable radiator liquid inlet and outlet structure according to claim 1, characterized in that: A track limiting groove (321) is provided on the inner wall of the arc-shaped track groove (32) on one side close to the front face. The blocking mechanism (4) comprises a moving cylinder (42). The hollow end portion of the moving cylinder (42) is open. A lip plate (41) is provided on the outer side of the port of the moving cylinder (42). The lip plate (41) slides inside the track limiting groove (321). A blocking plug (43) is slidably installed inside the moving cylinder (42). A sealing cone surface (431) is provided at the end portion of the blocking plug (43). The sealing cone surface (431) seals the water inlet (161) in the unexpanded state.

9. The satellite deployable radiator liquid inlet and outlet structure according to claim 8, characterized in that: A fixing rod (44) is provided on the side of the blocking plug (43) facing away from the sealing cone surface (431), and the fixing rod (44) passes through the movable cylinder (42). A second spring (46) is sleeved on the surface of the fixing rod (44), and the second spring (46) is placed inside the movable cylinder (42). The second spring (46) applies a thrust to the blocking plug (43) in the direction of the arc-shaped slider (16). The end of the fixing rod (44) is screwed with a limiting nut (45), and the limiting nut (45) is placed outside the movable cylinder (42). The limiting nut (45) is used to limit the distance that the blocking plug (43) extends outward.

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