Expandable radiation radiator and system based on fluid loop

Abstract

The invention relates to the technical field of radiation radiators, in particular to an expandable radiation radiator and system based on a fluid loop, and the radiator comprises a working medium accommodating part which is provided with two end parts, and a fluid working medium can flow from one end part of the working medium accommodating part to the other end part of the working medium accommodating part; the positioning structure is arranged on the working medium accommodating piece; the fixing frame is connected with the positioning structure; the heat dissipation structure is fixed by the fixed frame and is connected with the positioning structure; when the fluid working medium of the working medium containing part flows, heat can be transferred to the heat dissipation structure through the positioning structure. The flexible heat dissipation structure is clamped through the elastic design of the rigid positioning structure, good thermal resistance is provided, the flexible heat dissipation structure is supported through the fixing frame, the phenomenon that a radiation film of the heat dissipation structure is broken due to vibration is prevented, and stable and efficient operation of the radiation radiator is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of radiation radiators, and particularly to a deployable radiation radiator and system based on a fluid circuit. Background Art

[0002] Satellites, spacecraft, etc. face various thermal control problems in the space environment, such as temperature management, heat dissipation and absorption, and preventing equipment from overheating or overcooling. The operation of internal equipment of spacecraft, etc. generates a large amount of heat. At the same time, strong solar radiation may cause the equipment to overheat, thus leading to problems of local overheating. On the contrary, when the spacecraft enters the shadow area of the Earth's orbit, due to the lack of solar radiation, the temperature drops sharply, which may cause the equipment and systems to overcool, and even icing phenomena may occur. This drastic change in heat dissipation requirements requires the spacecraft to be equipped with a highly adaptable and flexible thermal management system.

[0003] The thermal control of spacecraft includes ensuring that each component of the system and equipment remains within the allowable temperature range in various operating modes and space environments. With the increasing complexity of space exploration missions, the thermal control system faces more severe challenges, especially to achieve efficient and reliable thermal management on the basis of limited system size and weight. Traditional thermal control technologies are difficult to meet the thermal control requirements of space equipment with high requirements for flexibility and stability because of their limited heat dissipation capacity and inability to dynamically adjust the heat dissipation performance to cope with changing heat loads and environmental conditions.

[0004] The integration of radiation radiators and fluid pipeline systems has gradually become an effective means to solve high-power thermal control problems. Through reasonable structural design, this integration scheme can not only meet the high-power thermal control requirements, but also achieve dynamic regulation of the heat dissipation capacity to adapt to the thermal management requirements under different environmental conditions. However, traditional radiation radiators use aluminum alloy plates, which still do not have an advantage in terms of weight, and the connection method is complex and bulky. For applications such as spacecraft that need to send mass to orbit or farther into the solar system, it faces challenges in terms of launch cost and propulsion efficiency. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned existing deployable radiation radiator based on a fluid circuit, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a deployable radiation radiator based on a fluid circuit.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A deployable radiation radiator based on a fluid circuit, comprising,

[0008] A working medium container having two ends, and the fluid working medium can flow from one end of the working medium container to the other end;

[0009] A positioning structure, which is arranged on the working fluid container;

[0010] A fixing frame, which is connected to the positioning structure; and,

[0011] A heat dissipation structure, which is fixed by the fixing frame and connected to the positioning structure;

[0012] When the fluid working medium in the working fluid container flows, heat can be transferred to the heat dissipation structure through the positioning structure.

[0013] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: the working fluid container includes a first combined pipe body and a second combined pipe body;

[0014] The first combined pipe body and the second combined pipe body are connected to each other through the positioning structure.

[0015] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: a first groove is provided on the first combined pipe body, and a second groove is provided on the second combined pipe body;

[0016] When the first combined pipe body and the second combined pipe body are connected, the first groove and the second groove are combined to form a fluid channel.

[0017] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: connecting pieces are provided at both axial ends of the working fluid container.

[0018] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: a first positioning hole is provided on the positioning structure;

[0019] Positioning structures extending along the axial direction of the first combined pipe body and the second combined pipe body are provided on both the first combined pipe body and the second combined pipe body;

[0020] When the first combined pipe body and the second combined pipe body are connected, the positioning structures on the first combined pipe body and the second combined pipe body can be connected through bolts and the first positioning hole.

[0021] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: a first connection hole is provided on the fixing frame, and a second positioning hole is provided on the positioning structure;

[0022] The fixing frame and the positioning structure are connected through the first connection hole and the second positioning hole.

[0023] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: the number of the fixed frames is at least two, and the heat dissipation structure is arranged between the two fixed frames.

[0024] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: the fixed frame includes an outer frame and an inner frame integrally formed with the outer frame;

[0025] A second connection hole is provided at an end of the outer frame away from the positioning structure.

[0026] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: when the first combined pipe body and the second combined pipe body are combined, there is a positioning gap between the positioning structures on the first combined pipe body and the second combined pipe body;

[0027] One end of the heat dissipation structure extends into the positioning gap.

[0028] As a preferred embodiment of the deployable radiation radiator based on a fluid circuit according to the present invention, wherein: the heat dissipation structure includes a heat conductor and a heat radiator covering the heat conductor;

[0029] The positioning gap includes a first positioning area and a second positioning area. The heat conductor extends into the first positioning area, and the heat radiator extends into the second positioning area;

[0030] The first positioning area is closer to the working medium container than the second positioning area.

[0031] The present invention also provides a radiation cooling system based on a fluid circuit, including the deployable radiation radiator based on a fluid circuit as described above; it further includes a pump group for transporting fluid. The pump group has an inlet end and an outlet end. The inlet end of the pump group is connected to the outlet end of the deployable radiation radiator based on a fluid circuit, and the outlet end of the pump group is connected to the inlet end of the deployable radiation radiator based on a fluid circuit; an accumulator provided at the inlet end of the pump group for storing and releasing fluid; a cold plate provided at the outlet end of the pump group for contacting a heat source and transferring the heat in the heat source to the fluid in the cold plate; a flow meter for monitoring the flow rate of the fluid transported by the pump group; and a solenoid valve provided at the outlet of the accumulator.

[0032] Advantages of the present invention: The elastic design of the rigid positioning structure is used to clamp the flexible heat dissipation structure and provide good thermal contact. The fixed frame supports the flexible heat dissipation structure to prevent the radiation film of the heat dissipation structure from cracking due to vibration, so as to maintain the stable and efficient operation of the radiation radiator. Description of the Drawings

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings. Among them:

[0034] Figure 1 This is the overall structural schematic diagram of the deployable radiation radiator based on the fluid circuit of the present invention.

[0035] Figure 2 This is the structural schematic diagram of the second combined pipe body described in the present invention.

[0036] Figure 3 This is the internal structural schematic diagram of the working medium accommodating member described in the present invention.

[0037] Figure 4 This is the cross-sectional structural schematic diagram of the working medium accommodating member described in the present invention.

[0038] Figure 5 This is the schematic diagram of the heat dissipation structure and the positioning structure described in the present invention.

[0039] Figure 6 This is the structural schematic diagram of the fixed frame described in the present invention.

[0040] Figure 7 This is the structural diagram of the radiation heat dissipation system based on the fluid circuit described in the present invention.

[0041] Figure 8 This is the schematic diagram of the flat state of the radiation radiator described in the present invention.

[0042] Figure 9 This is the schematic diagram of the folded state of the radiation radiator described in the present invention. Specific Embodiments

[0043] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings of the specification.

[0044] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0045] Second, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0046] Next, the present invention will be described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0047] Embodiment 1

[0048] Referring to Figures 1 to 6 , a deployable radiation radiator based on a fluid circuit is provided, including a working fluid container 100 having two ends, and the fluid working fluid can flow from one end of the working fluid container 100 to the other end.

[0049] The radiation radiator includes a positioning structure 200 provided on the working fluid container 100. In this embodiment, the positioning structure 200 is a plate-like structure integrally formed on the working fluid container 100. When the fluid working fluid flows inside the working fluid container 100, it can transfer heat to the positioning structure 200.

[0050] The radiation radiator includes a fixing frame 300 connected to the positioning structure 200; a heat dissipation structure 400 fixed by the fixing frame 300 and connected to the positioning structure 200. When the fluid working fluid of the working fluid container 100 flows, it can transfer heat to the heat dissipation structure 400 through the positioning structure 200.

[0051] The fixing frame 300 is used to support the heat dissipation structure 400. Because in this embodiment, the heat dissipation structure 400 adopts a more lightweight composite cooling structure compared to the traditional aluminum alloy plate. The composite cooling structure mainly consists of two parts, namely a cooling film and an anisotropic highly thermally conductive graphite film core material. The cooling film covers the outside of the anisotropic highly thermally conductive graphite film core material. The positioning structure 200 can transfer heat to the anisotropic highly thermally conductive graphite film core material, dissipate heat from the anisotropic highly thermally conductive graphite film core material through the cooling film, and at the same time, through the fixing frame 300, support and stabilize the composite cooling structure, making the entire radiation radiator lighter.

[0052] In this embodiment, the thickness of the cooling film is 200 - 500 μm, and the thickness of the anisotropic highly thermally conductive graphite film core material is 25 - 300 μm.

[0053] Specifically, the working fluid containing member 100 includes a first combined pipe body 101 and a second combined pipe body 102; the first combined pipe body 101 and the second combined pipe body 102 are connected by a positioning structure 200. Through the positioning structure 200, the first combined pipe body 101 and the second combined pipe body 102 can be fixed together to form the working fluid containing member 100.

[0054] Further, a first groove 103 is provided on the first combined pipe body 101, and a second groove 104 is provided on the second combined pipe body 102; wherein, the first groove 103 penetrates the first combined pipe body 101, the second groove 104 penetrates the second combined pipe body 102, the cross-sections of the first groove 103 and the second groove 104 are both semi-elliptical. When the first combined pipe body 101 and the second combined pipe body 102 are connected, the first groove 103 and the second groove 104 combine to form a fluid channel S.

[0055] The cross-sectional shapes of the first combined pipe body 101 and the second combined pipe body 102 are also semi-elliptical. After the first combined pipe body 101 and the second combined pipe body 102 are connected together, the first combined pipe body 101 and the second combined pipe body 102 form a pipe with an elliptical cross-section, and the first groove 103 and the second groove 104 form a fluid channel S with an elliptical cross-section, so as to improve the heat exchange efficiency between the fluid and the pipe wall and achieve a more compact space layout.

[0056] The two ends of the fluid channel S are divided into an inlet end S1 and an outlet end S2. The fluid working medium can enter the fluid channel S from the inlet end S1 and be discharged from the inside of the fluid channel S through the outlet end S2. When the fluid working medium flows inside the fluid channel S, it can transfer heat to the working fluid containing member 100 and the positioning structure 200 integrally formed therewith, and the positioning structure 200 transfers the heat to the heat dissipation structure 400 for heat dissipation.

[0057] Further, connection members 500 are provided at both axial ends of the working fluid containing member 100. The two ends of the working fluid containing member 100 have external thread structures. The connection member 500 is an aluminum alloy internal thread swivel union joint for connecting to an external pipe. The external pipe transports the fluid working medium to the inside of the fluid channel S through the connection member 500.

[0058] Further, a first positioning hole 201 is formed in the positioning structure 200; positioning structures 200 extending along the axial direction thereof are provided on both the first combined pipe body 101 and the second combined pipe body 102; when the first combined pipe body 101 and the second combined pipe body 102 are connected, the positioning structures 200 on the first combined pipe body 101 and the second combined pipe body 102 can be connected through bolts and the first positioning hole 201. And in this embodiment, two positioning structures 200 are integrally formed on both the first combined pipe body 101 and the second combined pipe body 102. When the first combined pipe body 101 and the second combined pipe body 102 are connected, the first combined pipe body 101 and the second combined pipe body 102 can be fixed together by bolts passing through the first positioning holes 201 of the positioning structures 200 on the first combined pipe body 101 and the second combined pipe body 102.

[0059] Further, a first connection hole 301 is formed in the fixing frame 300, and a second positioning hole 202 is formed in the positioning structure 200; the fixing frame 300 and the positioning structure 200 are connected through the first connection hole 301 and the second positioning hole 202. When the fixing frame 300 and the positioning structure 200 are connected, they are fixed by bolts passing through the first connection hole 301 and the second positioning hole 202 simultaneously.

[0060] Further, the number of the fixing frames 300 is at least two, and the heat dissipation structure 400 is arranged between the two fixing frames 300. In this embodiment, the number of the fixing frames 300 is four, and the four fixing frames 300 are respectively connected to the four positioning structures 200. By arranging one fixing frame 300 on each side of the heat dissipation structure 400, the stability of the entire heat dissipation structure 400 is improved.

[0061] Further, the fixing frame 300 includes an outer frame 302 and an inner frame 303 integrally formed with the outer frame 302; a second connection hole 304 is formed at the end of the outer frame 302 away from the positioning structure 200. Among them, on the fixing frame 300, the number of both the second connection hole 304 and the first connection hole 301 is two. At the same time, through holes are also formed at the four corners of the heat dissipation structure 400. When the heat dissipation structure 400 is located between the two fixing frames 300, the four through holes on the heat dissipation structure 400 respectively correspond to the two first connection holes 301 and the two second connection holes 304 of the fixing frame 300. Therefore, the heat dissipation structure 400 can be fixed between the two fixing frames 300 by bolts passing through the first connection hole 301 and the through holes, and simultaneously passing through the second connection hole 304 and the through holes, further improving the stability of the entire heat dissipation structure 400.

[0062] The present invention constructs a lightweight radiation cooler that combines structure and function. Through the elastic design of a rigid positioning structure, a flexible heat dissipation structure is clamped to provide good thermal contact. A fixed frame is used to support the flexible heat dissipation structure, preventing the radiation film of the heat dissipation structure from cracking due to vibration, so as to maintain the stable and efficient operation of the radiation radiator.

[0063] The radiation radiator design proposed by the present invention has high flexibility and can be structurally accessed at any specified position, so as to perform double-sided heat dissipation at the required position, giving full play to the radiation cooling effect, ensuring that the system can still maintain a stable working temperature under high power or complex environments, and enhancing the reliability and long-term operation ability of the equipment.

[0064] Embodiment 2

[0065] Refer to Figures 4 to 5 In this embodiment, which is different from the first embodiment, when the first combined pipe body 101 and the second combined pipe body 102 are combined, there is a positioning gap N between the positioning structures 200 on the first combined pipe body 101 and the second combined pipe body 102; one end of the heat dissipation structure 400 extends into the positioning gap N. Therefore, when the first combined pipe body 101 and the second combined pipe body 102 are locked, one end of the heat dissipation structure 400 can be clamped. At the same time, the contact area between the positioning structure 200 and the heat dissipation structure 400 is increased, which is convenient for the positioning structure 200 to better transfer heat to the heat dissipation structure 400.

[0066] Specifically, the heat dissipation structure 400 includes a heat conductor 401 and a heat dissipation body 402 covering the heat conductor 401; the positioning gap N includes a first positioning area N1 and a second positioning area N2. The heat conductor 401 extends into the first positioning area N1, and the heat dissipation body 402 extends into the second positioning area N2; the first positioning area N1 is closer to the working fluid container 100 than the second positioning area N2.

[0067] Among them, the heat conductor 401 is an anisotropic high thermal conductivity graphite film core material, and the heat dissipation body 402 is a cooling film. The heat conductor 401 extends deeper to enable direct contact between the heat conductor 401 and the positioning body, thereby improving the heat conduction effect of the heat conductor 401.

[0068] In the second positioning area N2, three V-shaped channels are provided on the positioning structure 200 for filling adhesives, and the adhesives can be one of epoxy resin and thermal conductive silicone grease.

[0069] The present invention constructs a sandwich structure of radiation film - heat dissipation film - radiation film, directly contacts the middle high thermal conductivity layer with the fluid pipeline, and utilizes the fast heat transfer ability of the high thermal conductivity heat dissipation layer to improve the temperature uniformity of the radiation film, so as to give full play to the heat dissipation ability of the radiator.

[0070] The remaining structures are the same as those in Embodiment 1.

[0071] Embodiment 3

[0072] What is different from the above embodiments in this embodiment is that a groove is respectively opened at both side walls of the working medium accommodating member 100 for filling a sealing strip to improve the sealing performance of the working medium accommodating member 100. Both the working medium accommodating member 100 and the connecting member 500 are made of aluminum alloy material, preferably 6061 aluminum alloy, which has good workability, relatively high strength and good corrosion resistance. Among them, the fluid working medium in the working medium accommodating member 100 can be one of water, ethylene glycol aqueous solution, and perfluorotriethylamine.

[0073] Specifically, the fixed frame 300 is made of carbon fiber material, and the inner frame 303 is designed as a cross structure, as Figure 3 shown, and to maintain a certain structural rigidity, the width of each side is preferably ≥1.5 mm, and the thickness is preferably ≥1.5 mm.

[0074] The heat dissipation structure 400 includes two heat dissipation bodies 402 and one heat conduction body 401. The two heat dissipation bodies 402 are the upper radiation cooling film 402a and the lower radiation cooling film 402b, and the heat conduction body 401 is an anisotropic highly thermally conductive graphite film core material. The anisotropic highly thermally conductive graphite film core material is arranged between the upper radiation cooling film 402a and the lower radiation cooling film 402b, and the anisotropic highly thermally conductive graphite film core material is adhesively bonded to the upper radiation cooling film 402a and the lower radiation cooling film 402b with silicone back glue and is completed by a lamination integration process. The thickness of the back glue is 10 - 50 μm.

[0075] The heat dissipation structure 400 is an efficient radiation panel. In a preferred example, the area of the radiation cooling film is preferably ≥0.06 m 2 , and at this time, the total radiation area of the entire radiator is ≥0.24 m 2 , and the in-plane thermal conductivity of the anisotropic highly thermally conductive graphite film core material is preferably ≥1300 W / (m·K).

[0076] The thickness of the upper radiation cooling film 402a and the lower radiation cooling film 402b is 200 - 500 μm, and the thickness of the anisotropic highly thermally conductive graphite film core material is 25 - 300 μm. Therefore, the thickness of the heat dissipation structure 400 is preferably 600 - 1300 μm.

[0077] A preferred manufacturing solution for the upper radiation cooling film 402a and the lower radiation cooling film 402b is to dope high-scattering metal oxide particles in the binder, where the binder is one or more of silicone resin, fluororesin, and acrylic resin, and the metal oxide particles include one or more of ZnO, ZrO2, and Al2O3. The solar absorptance of the surface of the radiation cooling film is ≤0.1, and the infrared emissivity is ≥0.92.

[0078] The anisotropic high thermal conductivity graphite film core material is bonded to the upper radiation cooling film 402a and the lower radiation cooling film 402b using silicone back glue and cured. The curing temperature is 100 - 150 °C, and the time is 1 - 5 min.

[0079] All other structures are the same as those in Embodiment 2.

[0080] Embodiment 4, the difference in this embodiment is: referring to Figures 7 to 9 , the present invention also proposes a radiation heat dissipation system based on a fluid circuit, including the above-mentioned deployable radiation radiator based on a fluid circuit; it further includes a pump group 1000 for transporting fluid, the pump group 1000 has an inlet end 1001 and an outlet end 1002, the inlet end 1001 of the pump group 1000 is connected to the outlet end of the radiation radiator of the fluid circuit system, and the outlet end 1002 of the pump group 1000 is connected to the inlet end of the radiation radiator of the fluid circuit system; an accumulator 2000 provided at the inlet end 1001 of the pump group 1000 for storing and releasing fluid; a cold plate 3000 provided at the outlet end 1002 of the pump group 1000 for contacting the heat source and transferring the heat in the heat source to the fluid in the cold plate 3000; a flow meter 4000 for monitoring the flow rate of the fluid transported by the pump group 1000; and a solenoid valve 5000 provided at the outlet of the accumulator 2000.

[0081] The heat of the heat source is transferred to the cold plate 3000, and the fluid working medium exchanges heat when flowing through the cold plate 3000, transferring the heat to the fluid working medium. Through the transportation of the pump group 1000, the fluid working medium can be sent into the interior of the radiation radiator through the outlet end 10002. After being dissipated by the radiation radiator, it returns to the pump group 1000 through the inlet end 1001 to complete the circulating heat dissipation effect of the fluid working medium, where the pump group is preferably a hydraulic pump.

[0082] The function of the accumulator 2000 is to store the fluid working medium and stabilize the pressure. When the pump unit 1000 delivers fluid and needs to instantaneously release or absorb a large amount of energy, the accumulator 2000 can store and release the fluid, making the flow more stable and avoiding pressure mutations and system oscillations. When the hydraulic pump is working, pressure pulsations and shocks will be generated, and the accumulator 2000 can absorb these shocks, reduce the vibration and noise of the system, protect the pipeline and other key components from excessive impact forces. There may be leakage problems in the hydraulic components in the fluid working medium circuit system of the pump unit 1000, resulting in pressure loss and efficiency decline. The accumulator 2000 can compensate for these leaks, maintain the stable operation of the system, and extend the service life of the components.

[0083] In this system, more than one radiation radiator is adopted, and the radiation radiators are connected by a flexible hose 6000. The flexible hose 6000 is a metal hose, and shape memory alloy sheets are arranged inside the metal hose. In this embodiment, the number of radiation radiators adopted is 10, and the metal hose connects the 10 radiation radiators in series, and the 10 radiation radiators form a radiator group.

[0084] In this embodiment, the 10 radiation radiators are divided into two groups, with 5 in each group. The 5 radiation radiators in the two groups are connected in one-to-one correspondence, which can help the radiator group to be deployed synchronously when the radiator group is deployed.

[0085] Due to the design of the flexible hose 6000, when the radiator group does not need to dissipate heat, the flexible hose 6000 is in a U shape. At this time, the radiator group is in a stacked state, which can reduce the space occupied by the radiator group. When heat dissipation is required, the radiator group can be deployed into a flat state, and at this time, the flexible hose 6000 can reach a straight state.

[0086] Shape memory alloy sheets are adopted inside the flexible hose 6000. When the temperature is lower than the starting transformation temperature of the alloy, the alloy is shaped into a U shape. At this time, the flexible hose 6000 is folded into a U shape, that is, the radiator group is in a stacked state. When the temperature rises above the complete phase transformation critical temperature of the shape memory alloy, it will return to the original shape, that is, the straight state. At this time, the flexible hose 6000 is stretched into a straight state and pushes the radiator group to be deployed into a flat state, so as to realize the intelligent deployment and folding of the radiator group.

[0087] When the temperature of the fluid working medium is relatively low, the flexible hose 6000 is in a U shape, and the entire radiation radiator group is in a stacked state, which can reduce the space occupied by the radiation radiator group. When the temperature of the fluid working medium is relatively high, the flexible hose 6000 is affected by the shape memory alloy sheets and reaches a straight state, which can push the radiation radiator group to be deployed, so as to obtain better heat dissipation capacity. Through this solution, the state of the entire radiation radiator group can be intelligently controlled according to the temperature of the fluid working medium.

[0088] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should readily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., the dimensions, scales, structures, shapes, and proportions of various elements, as well as parameter values such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means plus function" clauses are intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Accordingly, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0089] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to implementing the present invention).

[0090] It should be understood that in the development of any actual implementation, in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing, and production.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. An expandable radiation radiator based on a fluid circuit, characterized in that: including, a working fluid container (100) having two ends, and a fluid working fluid can flow from one end of the working fluid container (100) to the other end; a positioning structure (200) provided on the working fluid container (100); a fixing frame (300) connected to the positioning structure (200); and, a heat dissipation structure (400) fixed by the fixing frame (300) and connected to the positioning structure (200); when the fluid working fluid flows in the working fluid container (100), heat can be transferred from the working fluid container (100) to the heat dissipation structure (400).

2. The deployable radiation radiator based on a fluid circuit according to claim 1, characterized in that: The working fluid container (100) includes a first combined pipe body (101) and a second combined pipe body (102); The first combined pipe body (101) and the second combined pipe body (102) are connected by the positioning structure (200).

3. The deployable radiation radiator based on a fluid circuit according to claim 2, characterized in that: A first groove (103) is provided on the first combined pipe body (101), and a second groove (104) is provided on the second combined pipe body (102); When the first combined pipe body (101) and the second combined pipe body (102) are connected, the first groove (103) and the second groove (104) are combined to form a fluid channel (S).

4. The deployable radiation radiator based on a fluid circuit according to claim 2 or 3, characterized in that: Connectors (500) are provided at both axial ends of the working fluid container (100).

5. The deployable radiation radiator based on a fluid circuit according to claim 4, wherein: A first positioning hole (201) is provided in the positioning structure (200); Positioning structures (200) extending along the axial direction thereof are provided on both the first combined pipe body (101) and the second combined pipe body (102); When the first combined pipe body (101) and the second combined pipe body (102) are connected, the positioning structures (200) on the first combined pipe body (101) and the second combined pipe body (102) can be connected by bolts to the first positioning hole (201).

6. The deployable radiation radiator based on a fluid circuit according to claim 5, characterized in that: A first connection hole (301) is provided in the fixing frame (300), and a second positioning hole (202) is provided in the positioning structure (200); The fixing frame (300) and the positioning structure (200) are connected through the first connection hole (301) and the second positioning hole (202).

7. The deployable radiation radiator based on a fluid circuit according to claim 5 or 6, characterized in that: The number of the fixing frames (300) is at least two, and the heat dissipation structure (400) is arranged between the two fixing frames (300). The fixing frame (300) includes an outer frame (302) and an inner frame (303) integrally formed with the outer frame (302); A second connection hole (304) is provided at the end of the outer frame (302) away from the positioning structure (200).

8. The deployable radiation radiator based on a fluid circuit according to claim 7, wherein: When the first combined pipe body (101) and the second combined pipe body (102) are combined, there is a positioning gap (N) between the positioning structures (200) on the first combined pipe body (101) and the second combined pipe body (102); One end of the heat dissipation structure (400) extends into the positioning gap (N).

9. The deployable radiation radiator based on a fluid circuit according to claim 8, characterized in that: The heat dissipation structure (400) includes a heat conducting body (401) and a heat dissipating body (402) covering the heat conducting body (401); The positioning gap (N) includes a first positioning area (N1) and a second positioning area (N2). The heat conducting body (401) extends into the first positioning area (N1), and the heat dissipating body (402) extends into the second positioning area (N2). The first positioning area (N1) is closer to the working fluid container (100) than the second positioning area (N2).

10. A radiation heat dissipation system based on a fluid circuit, characterized in that: It includes the deployable radiation radiator based on a fluid circuit according to any one of claims 1 to 9; it further includes a pump set (1000) for conveying fluid. The pump set (1000) has an incoming flow end (1001) and an outgoing flow end (1002). The incoming flow end (1001) of the pump set (1000) is connected to the outlet end of the deployable radiation radiator based on a fluid circuit, and the outgoing flow end (1002) of the pump set (1000) is connected to the inlet end of the deployable radiation radiator based on a fluid circuit. an accumulator (2000) provided at the incoming flow end (1001) of the pump set (1000) for storing and releasing the working fluid. a cold plate (3000) provided at the outgoing flow end (1002) of the pump set (1000) for contacting a heat source and transferring the heat in the heat source to the fluid in the cold plate (3000). a flow meter (4000) for monitoring the flow rate of the fluid conveyed by the pump set (1000). a solenoid valve (5000) provided at the outlet of the accumulator (2000).

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