Aluminum ammonia channel heat pipe, heat dissipation assembly and satellite
By adopting the spacing setting of support components and low-density filling in the aluminum-ammonia slot heat pipe, the problem of weight increase caused by redundant materials is solved, and lightweight and efficient heat dissipation are achieved. It is suitable for aluminum-ammonia slot heat pipes for satellites.
Patent Information
- Application Number
- CN202422782988.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In order to ensure structural strength and heat transfer capacity, the existing aluminum-ammonia groove heat pipe retains too much material during the processing process, resulting in increased weight and production costs, and the heat transfer capacity requirements do not meet expectations.
Support components are arranged at intervals along the outside of the tube body to form gaps, reducing redundant material connections. The support components and the heat conduction plate are an integrated structure, and low-density filling components are used to fill the gaps to ensure heat conduction effects.
The aluminum-ammonia grooved heat pipe achieves the weight reduction effect while maintaining thermal conductivity, meeting the satellite's heat dissipation needs in extreme space environments and is suitable for spacecraft design.
Smart Images
Figure CN223361172U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of satellite thermal control technology, and in particular to an aluminum-ammonia channel heat pipe, a heat dissipation component, and a satellite. Background Art
[0002] In the current state of the art, aluminum-ammonia grooved heat pipes usually retain more material on the outside of the heat pipe during processing to ensure their structural strength and heat transfer capacity. However, although this design improves the durability and heat transfer performance of the heat pipe, it also leads to material waste, especially increasing the thickness in some unnecessary areas. In fact, the demand for heat transfer capacity in actual applications is not as great as expected. Excessive design has led to an increase in the overall weight of the heat pipe, which not only affects the ease of use of the product, but also increases production costs. Utility Model Content
[0003] In view of this, the present application provides an aluminum-ammonia channel heat pipe, a heat dissipation component and a satellite, the purpose of which is to solve the above technical problems to a certain extent.
[0004] In a first aspect, the present application provides an aluminum-ammonia channel heat pipe, comprising:
[0005] a pipe body having an axial direction;
[0006] a first heat conducting plate connected to an outer side of the tube body, the first heat conducting plate being used to adhere to a heating device in the satellite;
[0007] a second heat conducting plate, the second heat conducting plate being opposite to the first heat conducting plate, and the second heat conducting plate being used for contacting a cold source;
[0008] Among them, the aluminum-ammonia channel heat pipe also includes a plurality of supporting members, which connect the second heat conduction plate and the outer side of the pipe body. The plurality of supporting members are arranged at intervals along the outer side of the pipe body to form gaps between adjacent support members.
[0009] On the basis of the above technical solution, preferably, the tube body, the first heat conducting plate, the second heat conducting plate and the plurality of support members are an integrally formed structure, wherein the number of the support members is two.
[0010] Based on any of the above technical solutions, preferably, when viewed along the axial direction, the extension direction of the support member is perpendicular to the axial direction.
[0011] Based on any of the above technical solutions, preferably, when viewed along the axial direction, the shape of the gap is rectangular.
[0012] Based on any of the above technical solutions, preferably, a size of the supporting member in the axial direction is the same as a size of the second heat conducting plate in the axial direction.
[0013] On the basis of any of the above technical solutions, preferably, the support member extends continuously in the axial direction, or the support member includes a plurality of support portions spaced apart in the axial direction.
[0014] Based on any of the above technical solutions, preferably, the aluminum-ammonia channel heat pipe further includes a filling member, the filling member is filled in the gap, the filling member is configured as a heat-conducting structure, and the density of the filling member is less than the density of the pipe body, the density of the supporting member, and any one of the density of the second heat-conducting plate.
[0015] In a second aspect, the present application provides a heat dissipation assembly, which includes the aluminum-ammonia channel heat pipe as described above.
[0016] In a third aspect, the present application provides a satellite, which includes the aluminum-ammonia channel heat pipe as described above and / or the satellite includes the heat dissipation component as described above.
[0017] Based on any of the above technical solutions, preferably, the cold source includes a cabin of the satellite, and the cabin separates the internal space of the satellite from the external space of the satellite.
[0018] According to the aluminum-ammonia channel heat pipe provided in the present application, compared with the prior art, redundant solid materials are no longer used to connect the second heat conducting plate and the tube body. Instead, support members arranged at intervals along the outer side of the tube body are used to connect the second heat conducting plate and the tube body, thereby forming a gap between adjacent support members.
[0019] According to the aluminum-ammonia slot heat pipe provided by the present application, the formation of the above gap can effectively reduce the weight of the aluminum-ammonia slot heat pipe provided by the present application, and in actual applications, the formation of the gap does not substantially affect the heat conduction effect between the second heat conduction plate and the pipe body. Therefore, compared with the existing technology, while ensuring the heat conduction effect, the aluminum-ammonia slot heat pipe provided according to the embodiment of the present application achieves effective weight reduction.
[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 A schematic diagram showing an example of an aluminum-ammonia channel heat pipe provided according to an embodiment of the present application is shown;
[0023] Figure 2 A schematic diagram showing another example of an aluminum-ammonia channel heat pipe provided according to an embodiment of the present application is shown;
[0024] Figure 3 A schematic diagram of another example of an aluminum-ammonia channel heat pipe provided according to an embodiment of the present application is shown.
[0025] Reference numerals:
[0026] 10 - pipe body; 20 - first heat conducting plate; 30 - second heat conducting plate; 40 - supporting member; 50 - gap. DETAILED DESCRIPTION
[0027] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.
[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0030] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0031] According to a first aspect of an embodiment of the present application, an aluminum-ammonia slot heat pipe is provided. The structure and working principle of the aluminum-ammonia slot heat pipe will be described in detail below with reference to the accompanying drawings.
[0032] According to an embodiment of the present application, the aluminum-ammonia channel heat pipe includes a pipe body 10, a first heat conducting plate 20, a second heat conducting plate 30, and a plurality of support members 40. In the embodiment, the pipe body 10 has an axial direction. The first heat conducting plate 20 is connected to the outer portion of the pipe body 10 and is used to contact the heating device in the satellite. The second heat conducting plate 30 is opposite to the first heat conducting plate 20 and is used to contact the cooling source.
[0033] In the embodiment, the support members 40 connect the second heat conducting plate 30 and the outer side of the pipe body 10 . The support members 40 are spaced apart along the outer side of the pipe body 10 to form gaps 50 between adjacent support members 40 .
[0034] In this way, the aluminum-ammonia groove heat pipe provided according to the embodiment of the present application, compared with the prior art, no longer uses redundant solid materials to connect the second heat conducting plate 30 and the pipe body 10. Instead, the second heat conducting plate 30 and the pipe body 10 are connected by support members 40 arranged at intervals along the outer side of the pipe body 10, thereby forming a gap 50 between adjacent support members 40.
[0035] According to the aluminum-ammonia slot heat pipe provided in the embodiment of the present application, the formation of the above gap 50 can effectively reduce the weight of the aluminum-ammonia slot heat pipe provided in the embodiment of the present application, and in actual application, the formation of the gap 50 does not substantially affect the heat conduction effect between the second heat conduction plate 30 and the pipe body 10. Therefore, compared with the prior art, while ensuring the heat conduction effect, the aluminum-ammonia slot heat pipe provided in the embodiment of the present application achieves effective weight reduction.
[0036] In the embodiments, as mentioned above, prior to the present application, a solid redundant material was typically provided between the second heat conducting plate 30 and the outer portion of the tube body 10, as in the prior art. This design was intended to ensure the connection strength and heat conduction between the second heat conducting plate 30 and the tube body 10. However, the inventors of the present application discovered that the heat conduction between the second heat conducting plate 30 and the tube body 10 was not completely positively correlated with the amount of connecting material used. In fact, most of the redundant material did not play an effective role in heat conduction and the strength it could provide was quite limited.
[0037] However, due to the specific application environments of aluminum-ammonia channel heat pipes, structural improvements to these pipes have consistently prioritized reliability over reliability. This has led to a widespread design approach in the field that over-satisfies reliability requirements. In other words, due to the use of aluminum-ammonia channel heat pipes in satellites, timely maintenance is often unavailable should a failure occur. Consequently, reliability is prioritized, sometimes even over-emphasizing it, leading to the use of physically redundant materials, as is commonly seen in prior art.
[0038] Based on this, the inventors of this application changed their improvement ideas and optimized the structure of the aluminum-ammonia slot heat pipe so that it has the characteristics of being lightweight while having sufficient reliability. By utilizing this lightweight feature, when the satellite used by the aluminum-ammonia slot heat pipe is transported into space by a ship-borne rocket, the transportation requirements are effectively reduced.
[0039] According to the aluminum-ammonia channel heat pipe provided in the embodiment of the present application, the pipe body 10, the first heat conducting plate 20, the second heat conducting plate 30 and the plurality of support members 40 are an integrally formed structure, wherein the number of the support members 40 is two.
[0040] In an embodiment, the aluminum-ammonia slot heat pipe is formed of an aluminum alloy. In an embodiment, the pipe body 10, the first heat conducting plate 20, the second heat conducting plate 30 and the plurality of supporting members 40 are an integrally formed structure, so as to increase the integrity and strength of the aluminum-ammonia slot heat pipe provided according to the embodiment of the present application, and at the same time, the thermal conductivity efficiency between the various parts of the aluminum-ammonia slot heat pipe provided according to the embodiment of the present application can also be improved.
[0041] As an example, in an embodiment, the aluminum-ammonia channel heat pipe can be integrally extruded in a predetermined mold using an aluminum extrusion process. Therefore, to ensure the feasibility of this integral extrusion process, the number of support members 40 can be two (more support members 40 would make the mold difficult to manufacture). Specifically, the support member 40 is, for example, a rectangular plate-like structure in actual structure.
[0042] According to the aluminum-ammonia channel heat pipe provided in an embodiment of the present application, when viewed along the axial direction, the extension direction of the support member 40 is perpendicular to the axial direction. In the embodiment, according to the aluminum-ammonia channel heat pipe provided in an embodiment of the present application, the support member 40 extends from the outer portion of the tube body 10 to the second guide portion in a direction perpendicular to the axial direction. As a result, the heat transfer path from the outer portion of the tube body 10 to the second heat conducting plate 30 through the support member 40 is shortened, thereby improving the heat transfer capacity of the support member 40.
[0043] However, in other examples not shown, the support members 40 may be tilted relative to a direction perpendicular to the axial direction, so that the gap 50 is trapezoidal or substantially trapezoidal. Alternatively, when viewed along the axial direction, the ends of adjacent support members 40 may be connected together, so that the gap 50 is triangular or substantially triangular.
[0044] In the embodiment, as an example, according to the aluminum-ammonia channel heat pipe provided in the embodiment of the present application, when viewed along the axial direction, the shape of the gap 50 is rectangular.
[0045] According to the aluminum-ammonia slot heat pipe provided in the embodiment of the present application, the axial size of the support member 40 is the same as the axial size of the second heat conduction plate 30. Thus, according to the aluminum-ammonia slot heat pipe provided in the embodiment of the present application, the support member 40 can fully support the second heat conduction plate 30 along the axial direction and fully conduct heat.
[0046] In the aluminum-ammonia channel heat pipe provided in the embodiments of the present application, the support member 40 extends continuously in the axial direction. Similar to the beneficial effects described above, this continuous extension method can also fully support the second heat conducting plate 30 along the axial direction and effectively conduct heat. Alternatively, the support member 40 includes multiple support portions spaced apart in the axial direction. These support portions can be relatively short rectangular plate structures. The spaced support portions reduce the material content of the support member 40, thereby achieving further weight reduction.
[0047] According to the aluminum-ammonia channel heat pipe provided in the embodiment of the present application, the aluminum-ammonia channel heat pipe further includes a filling member, which is filled in the gap 50. The filling member is configured as a heat-conducting structure, and the density of the filling member is less than the density of the pipe body 10, the density of the support member 40, and the density of the second heat-conducting plate 30. In the embodiment, the gap 50 is filled with a filling member with a lower density, which further improves the thermal conductivity while achieving weight reduction. However, as an alternative, in other examples, such as the present application Figures 1 to 3 In the example of FIG. 5 , no filling member is provided in the gap 50 .
[0048] In an embodiment, a plurality of grooves may be provided on the inner side of the pipe body 10 along the axial direction to increase the contact area with the medium flowing therein. The shapes of the grooves may be, for example, rectangular grooves, trapezoidal grooves, or ω-shaped grooves.
[0049] The aluminum-ammonia slot heat pipe provided according to the embodiment of the present application is mainly used in the aerospace field, has high reliability and stability, and can work normally in extreme space environments. The aluminum-ammonia slot heat pipe provided according to the embodiment of the present application provides effective heat dissipation for single-machine equipment inside the satellite, ensuring that various precision instruments maintain a stable operating temperature under conditions of high vacuum, drastic temperature differences and no air flow. Through the efficient thermal conductivity of the heat pipe, the excess heat generated by the equipment can be quickly transferred to the outside of the satellite, avoiding local overheating and improving the overall operating efficiency and service life of the satellite. In addition, the slot heat pipe is also light in weight and compact in structure, which is suitable for the stringent design requirements of spacecraft.
[0050] In addition, the inventors of the present application realized that the heat transfer capacity of the heat pipe does not need to be too strong in aerospace equipment such as satellites. Therefore, under the premise of ensuring that the heat pipe has sufficient heat transfer capacity, the focus is on how to further reduce the weight of the heat pipe. Based on this goal, opening schemes of different shapes are compared, including triangles, circles, rectangles and other irregular shapes. In the embodiment, the rectangular opening not only performs best in weight reduction, but also maintains the strength and heat transfer performance of the heat pipe. This design greatly reduces the weight of the heat pipe while meeting the structural safety and heat dissipation requirements, and has significant practical value.
[0051] Regarding the design of mechanical strength, 6063 aluminum alloy material, which is commonly used in aluminum-ammonia groove heat pipes, was selected. This material has good lightweight properties while meeting the strength requirements.
[0052] When considering the shape of the openings, there are trapezoidal holes and triangular holes for the same two support members 40. Although these two designs can increase the thickness of the support member 40, thereby increasing the strength, they also inevitably lead to an increase in the weight of the heat pipe, affecting the lightweight design. The two support columns brought about by the rectangular opening design have standardized shapes, can well meet the mechanical strength requirements, and effectively control the weight. At the same time, the rectangular opening makes the heat transfer path shorter, further improving the heat transfer capacity. In addition, this opening method also simplifies the processing technology, reduces the manufacturing difficulty, and improves the production feasibility.
[0053] In the embodiment, the section of the heat pipe without the rectangular hole is designed to closely fit the satellite's internal heat source surface to maximize heat absorption from the electronic components. The side with the hole is designed to fit the satellite's cooling surface to effectively transfer heat away. The heat transfer path begins from the satellite's internal electronic components, transferring heat through the heat pipe to the cabin panel. The exterior of the cabin panel is coated with a white coating to enhance heat radiation, ultimately radiating the heat into outer space.
[0054] Detailed heat transfer calculations and experimental verification have shown that the heat transfer capacity of the entire cooling process fully meets the satellite's operational requirements. Regarding the rectangular hole portion, although the thermal conductivity of the opening area is slightly lower than that of the solid portion, its close proximity to the heat sink surface effectively negligibles the impact on heat transfer. The only observable effect is a slight increase in the cooling process time. However, compared to the significant weight reduction achieved by the rectangular hole design, this slight increase in heat transfer time is negligible. Therefore, considering both weight and heat transfer efficiency, the design of the opening to form the gap 50 is highly reasonable and effective.
[0055] According to a second aspect of an embodiment of the present application, a heat dissipation assembly is provided, which may include the above-mentioned aluminum-ammonia channel heat pipe.
[0056] According to a third aspect of an embodiment of the present application, a satellite is provided, the satellite including the aluminum-ammonia channel heat pipe and / or the satellite including the heat dissipation assembly. In an embodiment, the cold source includes a cabin of the satellite, which separates the interior space of the satellite from the exterior space of the satellite.
[0057] The above are only preferred embodiments of the present application and do not limit the scope of protection of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings under the innovative concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.
Claims
1. An aluminum-ammonia channel heat pipe, characterized in that: The aluminum-ammonia channel heat pipe comprises: a pipe body having an axial direction; a first heat conducting plate connected to an outer side of the tube body, the first heat conducting plate being used to adhere to a heating device in the satellite; a second heat conducting plate, the second heat conducting plate being opposite to the first heat conducting plate, and the second heat conducting plate being used for contacting a cold source; Among them, the aluminum-ammonia channel heat pipe also includes a plurality of supporting members, which connect the second heat conduction plate and the outer side of the pipe body. The plurality of supporting members are arranged at intervals along the outer side of the pipe body to form gaps between adjacent support members.
2. The aluminum-ammonia channel heat pipe according to claim 1, characterized in that: The tube body, the first heat conducting plate, the second heat conducting plate, and the plurality of support members are an integrally formed structure, wherein the number of the support members is two.
3. The aluminum-ammonia channel heat pipe according to claim 2, characterized in that: When viewed along the axial direction, the extending direction of the support member is perpendicular to the axial direction.
4. The aluminum-ammonia channel heat pipe according to claim 3, characterized in that: When viewed along the axial direction, the gap has a rectangular shape.
5. The aluminum-ammonia channel heat pipe according to claim 1, characterized in that: A size of the support member in the axial direction is the same as a size of the second heat conducting plate in the axial direction.
6. The aluminum-ammonia channel heat pipe according to claim 1, characterized in that: The support member extends continuously in the axial direction, or the support member includes a plurality of support portions spaced apart in the axial direction.
7. The aluminum-ammonia channel heat pipe according to claim 1, characterized in that: The aluminum-ammonia channel heat pipe also includes a filling member, which fills the gap and is configured as a heat-conducting structure. The density of the filling member is less than any one of the density of the pipe body, the density of the support member, and the density of the second heat-conducting plate.
8. A heat dissipation component, characterized in that: The heat dissipation assembly includes the aluminum-ammonia channel heat pipe according to any one of claims 1 to 7.
9. A satellite, characterized in that: The satellite comprises the aluminum-ammonia channel heat pipe according to any one of claims 1 to 7 and / or the satellite comprises the heat dissipation assembly according to claim 8.
10. The satellite according to claim 9, characterized in that The cold source includes a cabin of the satellite, and the cabin separates an inner space of the satellite from an outer space of the satellite.