A stackable aluminum extruded profile frame satellite structure

Abstract

The application discloses a stackable aluminum extrusion profile frame satellite structure, and relates to the technical field of aerospace satellites, comprising: at least one stackable sub-frame; each stackable sub-frame comprises: a plurality of L-shaped extrusion forming structures, a plurality of outer wall plates and an inner partition plate; wherein each outer wall plate is composed of a plurality of I-shaped extrusion forming structures; the inner partition plate is composed of a plurality of I-shaped extrusion forming structures; when the stackable sub-frames are multiple, two adjacent stackable sub-frames are modularly stacked by aligning and splicing the upper end and the lower end of the L-shaped extrusion forming structures at the corresponding positions, and the lower end of the L-shaped extrusion forming structure of the upper stackable sub-frame is adaptively connected with the upper end of the L-shaped extrusion forming structure of the lower stackable sub-frame. The application can improve the mechanical bearing performance of the satellite structure, effectively improve the space utilization rate of the launch vehicle fairing, and realize the mixed stacking of satellite structures of different models, thereby meeting the installation requirements of equipment of different sizes.

Description

Technical Field

[0001] This application relates to the field of aerospace satellite technology, and in particular to a stackable aluminum extrusion profile frame satellite structure. Background Technology

[0002] In recent years, with the increasingly fierce competition among countries for low-Earth orbit (LEO) space resources, the global deployment of LEO satellite constellations has entered a phase of explosive growth. For example, SpaceX has launched more than 8,000 satellites to date; my country's "Hongyan" and "Yinhe" constellation programs are also planning to launch thousands of satellites. To cope with the massive scale of satellite deployment, it is necessary to maximize the carrying capacity of rockets to reduce satellite launch costs. Therefore, the "one rocket, multiple satellites" approach has been proposed and applied. Currently, the main "one rocket, multiple satellites" launch methods for large-scale constellation construction, both domestically and internationally, are multi-layer wall-mounted and stacked launches.

[0003] Multi-layer wall-mounted systems, with their central support tube, can support multiple irregularly shaped satellites (including flat-panel and frame-type satellites). However, the presence of this central support tube significantly reduces the space utilization of the fairing. Compared to wall-mounted systems, stacked systems save the space occupied by the central support tube, greatly improving the space utilization efficiency of the fairing. However, stacked satellites are typically traditional honeycomb sandwich flat-panel structures, which are prone to insufficient bending stiffness when stacked axially, posing a more severe challenge to their mechanical load-bearing performance. Secondly, there is a lack of standardized connection interfaces between stacked satellites, making it difficult to mix and stack different types of satellites. Furthermore, the flat-panel structure of stacked satellites is difficult to adapt to remote sensing satellites with large-aperture, long-focal-length optical equipment.

[0004] Therefore, there is an urgent need to propose a stackable aluminum extrusion profile frame satellite structure to solve the above problems. Summary of the Invention

[0005] The purpose of this application is to provide a stackable aluminum extrusion profile frame-type satellite structure, which can improve the mechanical load-bearing performance of the satellite structure, effectively increase the space utilization of the launch vehicle fairing, and also realize the mixed stacking of different types of satellite structures, thereby meeting the installation requirements of equipment of different sizes.

[0006] To achieve the above objectives, this application provides a stackable aluminum extrusion profile frame-type satellite structure, comprising: at least one stackable sub-frame; each stackable sub-frame comprising: multiple L-shaped extruded structures, multiple outer wall panels, and inner partitions; wherein each outer wall panel is composed of multiple I-shaped extruded structures; the inner partitions are composed of multiple I-shaped extruded structures; each L-shaped extruded structure comprises: a first side and a second side, one end of the first side and one end of the second side being connected at an internal angle to form an L-shaped outer contour plate structure, the first side having a first internal rib structure, the second side having a second internal rib structure, and a load-bearing seat for axial stacking installation being provided at the external angle between the first side and the second side; each I-shaped extruded structure comprises: an I-shaped outer contour plate structure, the I-shaped outer contour plate structure having a third internal rib structure; in each stackable sub-frame, the multiple L-shaped extruded structures respectively serve as the vertices of the outer rectangular frame, and each L-shaped extruded structure The inner included angle of the structure faces the inner side of the outer rectangular frame, and the load-bearing seat at the outer included angle of each L-shaped extrusion-molded structure is located on the outer side of the outer rectangular frame; each of two adjacent L-shaped extrusion-molded structures is connected by an outer wall panel, and the other end of the first side or the other end of the second side of the L-shaped extrusion-molded structure is fixedly connected to the side of the corresponding outer wall panel. Multiple L-shaped extrusion-molded structures and multiple outer wall panels are connected end to end in sequence to form a closed outer rectangular frame; an inner partition is set inside the outer rectangular frame, which divides the interior of the outer rectangular frame into internal spaces adapted to the installation of first equipment of different sizes, and the inner partition has a groove for fixing cylindrical equipment; when there are multiple stackable subframes, adjacent two stackable subframes are modularly stacked by aligning and splicing the upper and lower ends of the L-shaped extrusion-molded structures at corresponding positions, and the lower end of the L-shaped extrusion-molded structure of the upper stackable subframe is adapted and connected to the upper end of the L-shaped extrusion-molded structure of the lower stackable subframe.

[0007] As described above, the inner partition is a flat plate structure composed of multiple I-shaped extrusion molding structures. The flat plate structure is located inside the outer rectangular frame, forming a H-shaped frame structure with the outer rectangular frame. The flat plate structure divides the interior of the outer rectangular frame into internal spaces suitable for the installation of first equipment of different sizes, and the flat plate structure has grooves for fixing cylindrical equipment. Alternatively, the inner partition is a cross-shaped structure composed of multiple I-shaped extrusion molding structures. The cross-shaped structure is located inside the outer rectangular frame, forming a Grid-shaped frame structure with the outer rectangular frame. The cross-shaped structure divides the interior of the outer rectangular frame into internal spaces suitable for the installation of first equipment of different sizes, and the cross-shaped structure has grooves for fixing cylindrical equipment.

[0008] As described above, the I-type extrusion molding structure further includes: at least one first side rib structure; wherein the first side rib structure includes: a first side rib edge and a second side rib edge, one end of the first side rib edge and one end of the second side rib edge are connected at an inner angle to form an L-shaped structure; the other end of the first side rib edge is connected to the surface of the I-type outer contour plate structure, and the first side rib structure on the I-type extrusion molding structure that forms the outer wall panel is located on the inner or outer side of the stackable sub-frame.

[0009] As shown above, at least one first connecting structure for installing the second device is provided on the side of the second side rib of the first side rib structure.

[0010] As described above, the first connection structure is a bolt connection hole or a bolt connection groove; when there is one first connection structure, it is a bolt connection hole or a bolt connection groove; when there are multiple first connection structures, it can be a bolt connection hole alone, a bolt connection groove alone, or include both bolt connection holes and bolt connection grooves at the same time.

[0011] As described above, the I-type extrusion molding structure further includes: at least one second side rib structure; the second side rib structure is a T-shaped structure, consisting of a third side rib edge and a fourth side rib edge; the third side rib edge is vertically arranged, with one end connected to the surface of the I-type outer contour plate structure, and the other end vertically connected to the middle of the fourth side rib edge arranged horizontally; and the second side rib structure on the I-type extrusion molding structure constituting the outer wall panel is located inside or outside the stackable sub-frame.

[0012] As shown above, at least one second connecting structure for installing the second equipment is provided on the fourth side of the second side reinforcement structure.

[0013] As shown above, in the stackable subframe, the outer side of the outer wall panel has multiple notches for supporting and installing third equipment; the shapes and sizes of the multiple notches are different.

[0014] As shown above, the L-shaped extrusion molding structure is connected to the outer wall panel by welding; both the outer wall panel and the inner partition are composed of multiple I-shaped extrusion molding structures welded together.

[0015] As shown above, the L-shaped extrusion molding structure is designed with cross-sectional dimensions, rib structure type and geometry according to the payload carried by the rocket or the functional requirements of the satellite, and is extruded along the first direction; the I-shaped extrusion molding structure is designed with cross-sectional dimensions, rib structure type and geometry according to the payload carried by the rocket or the functional requirements of the satellite, and is extruded along the second direction, and the first direction and the second direction are the same.

[0016] The stackable aluminum extrusion profile frame satellite structure of this application uses an extrusion molding process to obtain splicable L-shaped extrusion molding structure and I-shaped extrusion molding structure, and obtains stackable sub-frames by welding splicing. The stackable sub-frames have extrusion molding load-bearing seats, which can meet the stackable distribution of satellite structures; at the same time, different models of satellite structures can be mixed and stacked according to different equipment installation requirements. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of one embodiment of a stackable subframe, wherein... Figure 1 (a) is a perspective view of one embodiment of a grid-shaped stackable subframe. Figure 1 (b) is an exploded view of one embodiment of a grid-shaped stackable subframe;

[0019] Figure 2 This is a schematic diagram of one embodiment of an L-shaped extrusion molding structure, wherein... Figure 2 Image (a) is a perspective view of one embodiment of the L-shaped extrusion molding structure. Figure 2 (b) is a cross-sectional view of one embodiment of the L-shaped outer contour flat plate structure. Figure 2 (c) is a cross-sectional view of another embodiment of the L-shaped outer contour flat plate structure;

[0020] Figure 3 This is a schematic diagram of one embodiment of the I-type extrusion molding structure, wherein, Figure 3 Image (a) is a perspective view of one embodiment of the I-type extrusion molding structure. Figure 3 (b) is a perspective view of another embodiment of the I-type extrusion molding structure. Figure 3 (c) in the middle is Figure 3 The cross-sectional view corresponding to (b) in the diagram; Figure 3 (d) is a perspective view of another embodiment of the I-type extrusion molding structure. Figure 3 (e) in the middle is Figure 3 The cross-sectional view corresponding to (d) in the diagram;

[0021] Figure 4 This is a schematic diagram of one embodiment of a stackable aluminum extrusion profile frame-type satellite structure when there are multiple stackable subframes. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, this application provides a stackable aluminum extruded profile frame-type satellite structure, including: at least one stackable sub-frame 1. Each stackable sub-frame 1 includes: multiple L-shaped extruded structures 11, multiple outer wall panels, and inner partitions; wherein, each outer wall panel is composed of multiple I-shaped extruded structures 12; the inner partition is composed of multiple I-shaped extruded structures 12; each L-shaped extruded structure 11 includes: a first side 111 and a second side 112, one end of the first side 111 and one end of the second side 112 are connected at an inward included angle to form an L-shaped outer contour flat plate structure, and the first side 111 is provided with a first internal rib structure 1111, the second side 111... A second internal rib structure 1121 is provided inside the side 112, and a load-bearing seat 113 for axial stacking is provided at the outer included angle between the first side 111 and the second side 112; each I-shaped extrusion-molded structure 12 includes: an I-shaped outer contour plate structure 121, and a third internal rib structure 122 is provided inside the I-shaped outer contour plate structure 121; in each stackable sub-frame 1, multiple L-shaped extrusion-molded structures 11 serve as the vertices of the outer rectangular frame, and the included angle of each L-shaped extrusion-molded structure 11 faces outward. Inside the rectangular frame, the load-bearing seats 113 at the outer corners of each L-shaped extrusion-molded structure 11 are located outside the outer rectangular frame. Adjacent L-shaped extrusion-molded structures 11 are connected by an outer wall panel. The other end of the first side 111 or the other end of the second side 112 of the L-shaped extrusion-molded structure 11 is fixedly connected to the side of the corresponding outer wall panel. Multiple L-shaped extrusion-molded structures 11 and multiple outer wall panels are connected end to end in sequence to form a closed outer rectangular frame. An inner partition is set inside the outer rectangular frame. The inner partition divides the interior of the outer rectangular frame into internal spaces adapted to the installation of first equipment 2 of different sizes. The inner partition is provided with a groove 123 for fixing cylindrical equipment 3. When there are multiple stackable subframes 1, adjacent stackable subframes 1 are modularly stacked by aligning and splicing the upper and lower ends of the corresponding L-shaped extrusion-molded structures 11. The lower end of the L-shaped extrusion-molded structure 11 of the upper stackable subframe 1 is adapted and connected to the upper end of the L-shaped extrusion-molded structure 11 of the lower stackable subframe 1.

[0024] Specifically, the stackable aluminum extrusion profile frame satellite structure of this application is assembled from multiple L-shaped extruded structures 11 and multiple I-shaped extruded structures 12. This stackable aluminum extrusion profile frame satellite structure is used to be mounted on rocket 4 and can achieve stacking installation. The specific dimensions of each stackable sub-frame 1 can be set according to actual needs to adapt to different satellite structures. The stacking quantity and order of different models of stackable sub-frames 1 can be adjusted according to the launch mission requirements.

[0025] Furthermore, the specific number of L-shaped extrusion-molded structures 11 is set according to actual needs, and four are preferred in this application. The specific number of outer wall panels is set according to actual needs, and four are preferred in this application. The specific number of I-shaped extrusion-molded structures 12 in each outer wall panel is set according to actual needs. The specific number of I-shaped extrusion-molded structures 12 in the inner partition is set according to actual needs. The specific value of the included angle between the first side 111 and the second side 112 is set according to actual needs.

[0026] Specifically, as an embodiment, when the included angle between the first side 111 and the second side 112 is 90°, there are four L-shaped extrusion molding structures 11 and four outer wall panels, in each stackable subframe 1, the four L-shaped extrusion molding structures 11 respectively serve as the four right-angle vertices of the outer rectangular frame, the included angle of each L-shaped extrusion molding structure 11 faces the inner side of the outer rectangular frame, and the load-bearing seat 113 at the outer included angle of each L-shaped extrusion molding structure 11 is located on the outer side of the outer rectangular frame; adjacent two L-shaped extrusion molding structures 11 are connected by an outer wall panel, and the other end of the first side 111 or the other end of the second side 112 in the L-shaped extrusion molding structure 11 is fixedly connected to the side of the corresponding outer wall panel. The four L-shaped extrusion molding structures 11 and the four outer wall panels are connected end to end in sequence to form a closed outer rectangular frame.

[0027] Furthermore, such as Figure 1 and Figure 2 As shown, the specific structure of the support seat 113 can be set according to the actual situation; in this application, the support seat 113 is preferably a closed cylindrical structure or an open cylindrical structure, which is used to realize the axial stacking installation between satellites.

[0028] Furthermore, the specific type (i.e., shape), quantity, and thickness of the first internal rib structure 1111 can be designed according to the actual load-bearing requirements of the satellite. In this application, the first internal rib structure 1111 is preferably an inclined rib, a vertical rib, or a rib structure designed through topology optimization.

[0029] Specifically, the first internal rib structure 1111 enables the lightweight design of the first side 111 while ensuring its structural rigidity and strength.

[0030] Furthermore, the specific type (i.e., shape), quantity, and thickness of the second internal rib structure 1121 can be designed according to the actual load-bearing requirements of the satellite. In this application, the second internal rib structure 1121 is preferably an inclined rib, a vertical rib, or a rib structure designed through topology optimization.

[0031] Specifically, the second internal rib structure 1121 enables the lightweight design of the second side 112 while ensuring its structural rigidity and strength.

[0032] Furthermore, the specific type (i.e., shape), quantity, and thickness of the third internal rib structure 122 can be designed according to the actual load-bearing requirements of the satellite. In this application, the third internal rib structure 122 is preferably an inclined rib, a vertical rib, or a rib structure designed through topology optimization.

[0033] Specifically, the third internal rib structure 122 enables the lightweight design of the I-shaped outer contour flat plate structure 121 while ensuring its structural rigidity and strength.

[0034] Furthermore, as an embodiment, the inner partition is a flat plate structure composed of multiple I-shaped extrusion molding structures 12; the flat plate structure is located inside the outer rectangular frame and forms a H-shaped frame structure with the outer rectangular frame. The flat plate structure divides the interior of the outer rectangular frame into an internal space adapted to the installation of the first device 2 of different sizes, and the flat plate structure is provided with a groove 123 for fixing the cylindrical device 3.

[0035] like Figure 1 As shown, in another embodiment, the inner partition is a cross-shaped structure composed of multiple I-shaped extrusion molding structures 12. The cross-shaped structure is located inside the outer rectangular frame and forms a grid-shaped frame structure with the outer rectangular frame. The cross-shaped structure divides the interior of the outer rectangular frame into an internal space that is adapted to the installation of the first device 2 of different sizes. The cross-shaped structure is provided with a groove 123 for fixing the cylindrical device 3.

[0036] Furthermore, the trough 123 used to fix the cylindrical device 3 is located in the middle of the grid-shaped frame structure, but is not limited to the middle of the grid-shaped frame structure.

[0037] Specifically, the cross-section of the stackable subframe 1 can be designed according to the satellite payload requirements, and is not limited to a grid shape or a sun shape, but can also adopt other shapes. The specific type of the cylindrical device 3 can be selected according to actual needs, for example, a large-aperture optical lens can be selected.

[0038] Furthermore, the outer wall panel is cut by milling to obtain the groove 123 for fixing the cylindrical equipment 3, but it is not limited to milling.

[0039] Furthermore, the specific shape and size of the trough 123 used to fix the cylindrical equipment 3 can be selected according to actual needs. In this application, a circular notch is preferred, which is suitable for installing large cylindrical equipment.

[0040] Furthermore, such as Figure 3 As shown, the I-type extrusion molding structure 12 further includes: at least one first side rib structure 124; wherein, the first side rib structure 124 includes: a first side rib edge and a second side rib edge, one end of the first side rib edge and one end of the second side rib edge are connected at an inner angle to form an L-shaped structure; the other end of the first side rib edge is connected to the surface of the I-type outer contour flat plate structure 121, and the first side rib structure 124 on the I-type extrusion molding structure 12 that forms the outer wall panel is located on the inner or outer side of the stackable sub-frame 1.

[0041] Specifically, the number, thickness, and shape of the first side rib structure 124 are designed according to the actual load-bearing requirements of the satellite. The first side rib structure 124 is not limited to an L-shaped structure, but can also adopt other shapes such as vertical rib structures. The specific value of the included angle between the edge of the first side rib and the edge of the second side rib is set according to actual requirements, and is preferably 90° in this application.

[0042] Furthermore, at least one first connecting structure for installing the second device 5 is provided on the side of the second side rib of the first side rib structure 124.

[0043] Specifically, the type of the second device 5 can be selected according to actual needs, such as communication equipment, heat dissipation equipment or other satellite functional equipment.

[0044] Furthermore, the first connecting structure is obtained through machining, but is not limited to the methods described above.

[0045] Furthermore, the first connection structure is a bolt connection hole 51 or a bolt connection groove 52; when there is one first connection structure, it is a bolt connection hole 51 or a bolt connection groove 52; when there are multiple first connection structures, it can be a bolt connection hole 51 alone, a bolt connection groove 52 alone, or include both bolt connection hole 51 and bolt connection groove 52 at the same time.

[0046] Specifically, the number of the first connection structure is selected according to actual needs.

[0047] Furthermore, such as Figure 3As shown, the I-type extrusion molding structure 12 further includes: at least one second side rib structure 125; the second side rib structure 125 is a T-shaped structure, consisting of a third side rib edge and a fourth side rib edge; the third side rib edge is vertically arranged, with one end connected to the surface of the I-type outer contour plate structure 121, and the other end vertically connected to the middle of the fourth side rib edge which is horizontally arranged; and the second side rib structure 125 on the I-type extrusion molding structure 12 that forms the outer wall panel is located inside or outside the stackable sub-frame 1.

[0048] Specifically, the number, thickness, and shape of the second side reinforcement structure 125 are determined according to actual needs. The second side reinforcement structure 125 is not limited to a T-shaped structure; other shapes such as vertical reinforcement structures can also be used.

[0049] Furthermore, at least one second connecting structure for installing the second device 5 is provided on the fourth side of the second side reinforcement structure 125.

[0050] Furthermore, the second connecting structure is obtained through machining, but is not limited to the methods described above.

[0051] Furthermore, the second connection structure is a bolt connection hole 51 or a bolt connection groove 52; when there is only one second connection structure, it is a bolt connection hole 51 or a bolt connection groove 52; when there are multiple second connection structures, it can be a bolt connection hole 51 alone, a bolt connection groove 52 alone, or include both bolt connection hole 51 and bolt connection groove 52 at the same time.

[0052] Specifically, whether or not rib structures (i.e., first side rib structure 124 and second side rib structure 125) are provided on both sides (i.e., the inner and outer sides) of the stackable subframe 1, and which type of rib structure is provided, needs to be designed according to the actual equipment installation requirements of the satellite. In Example 1, neither the first side rib structure 124 nor the second side rib structure 125 are provided on either side (i.e., the inner and outer sides) of the stackable subframe 1. In Example 2, only one type of rib structure (i.e., the first side rib structure 124 or the second side rib structure 125) is provided on one side (i.e., the inner or outer side) of the type I extruded structure 12 in the stackable subframe 1. In Example 3, both types of rib structures (i.e., the first side rib structure 124 and the second side rib structure 125) are provided on one side (i.e., the inner or outer side) of the type I extruded structure 12 in the stackable subframe 1. As an embodiment 4, in the stackable subframe 1, a rib structure is provided on each side of the I-shaped extrusion-molded structure 12, namely: a first side rib structure 124 (or a second side rib structure 125) is provided on the outer side, and a second side rib structure 125 (or a first side rib structure 124) is provided on the inner side. As an embodiment 5, in the stackable subframe 1, two rib structures are provided on both sides of the I-shaped extrusion-molded structure 12, namely: a first side rib structure 124 and a second side rib structure 125 are provided on the outer side, and a second side rib structure 125 and a first side rib structure 124 are provided on the inner side.

[0053] Furthermore, such as Figure 1 As shown, in the stackable subframe 1, the outer side of the outer wall panel has multiple notches 126 for supporting and installing the third device 6; the multiple notches 126 have different shapes and sizes.

[0054] Specifically, the shape and size of the notch 126 can be selected according to actual needs. The specific type of the third device 6 can be selected according to actual needs; for example, optical equipment, sensors, solar panels, or battery modules can be used.

[0055] Furthermore, the I-shaped extrusion structure 12 constituting the outer wall panel is cut by milling to obtain a notch 126 for supporting and installing the third device 6, but not limited to milling.

[0056] Furthermore, the L-shaped extrusion molding structure 11 and the I-shaped extrusion molding structure 12 are connected by friction stir welding, but not limited to friction stir welding.

[0057] Furthermore, such as Figure 2 and Figure 3As shown, the L-shaped extrusion-molded structure 11 is designed with cross-sectional dimensions, rib structure type and geometry according to the payload carried by the rocket or the functional requirements of the satellite, and is extruded along the first direction; the I-shaped extrusion-molded structure 12 is designed with cross-sectional dimensions, rib structure type and geometry according to the payload carried by the rocket or the functional requirements of the satellite, and is extruded along the second direction, and the first direction and the second direction are the same.

[0058] Specifically, in this application, the first direction refers to the extrusion direction of the L-shaped extrusion molding structure 11. The second direction refers to the extrusion direction of the I-shaped extrusion molding structure 12.

[0059] Extruded profiles of different lengths (i.e., L-shaped extrusion molding structure 11 and I-shaped extrusion molding structure 12) can be customized according to the installation requirements of different equipment, thereby realizing the mixed stacking of multiple models and types of satellite structures such as remote sensing satellites and communication satellites. Figure 4 As shown, satellite structures with different equipment installation requirements (i.e., stackable subframes 1) can be stacked in the same launch vehicle; among them, remote sensing satellite structure 1' (i.e., stackable subframe 1 with large optical equipment) and communication satellite structure 1'' (i.e., stackable subframe 1 without large optical equipment) can be mixed-stacked along the first direction. The number and order of stacking different types of satellite structures are adjusted according to the actual satellite launch mission requirements.

[0060] This application provides a method for manufacturing a stackable aluminum extruded profile frame-type satellite structure, comprising the following steps:

[0061] S1: Based on the payload or functional requirements of the target satellite, design the cross-sectional dimensions, rib structure type, and geometry of the L-shaped extrusion molding structure, and extrude it along the first direction; based on the payload or functional requirements of the target satellite, design the cross-sectional dimensions, rib structure type, and geometry of the I-shaped extrusion molding structure, and extrude it along the second direction.

[0062] S2: Determine the frame assembly method based on the equipment installation or functional requirements of the target satellite; according to the determined frame assembly method, splice the L-shaped extrusion molding structure and the I-shaped extrusion molding structure into the initial frame structure by welding; wherein, the frame assembly method is: a sun-shaped frame structure, a grid-shaped frame structure, or other shapes.

[0063] S3: A groove for fixing cylindrical equipment is opened within the initial frame structure by milling.

[0064] S4: Mill multiple notches on one side surface of the initial frame structure to support and install the third equipment.

[0065] Specifically, the gaps are used for equipment arrangement or unfolding structural storage devices.

[0066] S5: The first connecting structure and / or the second connecting structure are formed on the ribbed structure of the I-type extrusion molding structure by drilling or milling.

[0067] Specifically, the equipment installation requirements are met through a first connection structure and / or a second connection structure.

[0068] The stackable aluminum extrusion profile frame satellite structure of this application uses an extrusion molding process to obtain splicable L-shaped extrusion molding structure and I-shaped extrusion molding structure, and obtains stackable sub-frames by welding splicing. The stackable sub-frames have extrusion molding load-bearing seats, which can meet the stackable distribution of satellite structures; at the same time, different models of satellite structures can be mixed and stacked according to different equipment installation requirements.

[0069] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the scope of protection of this application is intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application. Obviously, those skilled in the art can make various alterations and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of protection of this application and its equivalents, this application also intends to include these modifications and variations.

Claims

1. A stackable aluminum extruded profile framed satellite structure, characterized by, The utility model relates to a kind of modularization stackable frame, including: At least one stackable sub-frame; Each stackable sub-frame includes: a plurality of L-shaped extrusion structures, a plurality of outer wall plates and inner partitions;Wherein, each outer wall plate is composed of a plurality of I-shaped extrusion structures;The inner partition is composed of a plurality of I-shaped extrusion structures; Each L-shaped extrusion structure includes: a first side and a second side, one end of the first side and one end of the second side are connected at an internal angle to form an L-shaped outer contour flat plate structure, a first internal rib structure is arranged in the first side, a second internal rib structure is arranged in the second side, and a bearing seat for realizing axial stacking installation is arranged at the external angle between the first side and the second side; Each I-shaped extrusion structure includes: an I-shaped outer contour flat plate structure, and a third internal rib structure is arranged in the I-shaped outer contour flat plate structure; In each stackable sub-frame, the plurality of L-shaped extrusion structures are respectively used as the vertices of an outer rectangular frame, the internal angles of the L-shaped extrusion structures face the inner side of the outer rectangular frame, and the bearing seats at the external angles of the L-shaped extrusion structures are located on the outer side of the outer rectangular frame;Two adjacent L-shaped extrusion structures are connected by an outer wall plate, the other end of the first side or the other end of the second side in the L-shaped extrusion structure is fixedly connected with the side edge of the corresponding outer wall plate, and the plurality of L-shaped extrusion structures and the plurality of outer wall plates are sequentially connected end to end to form a closed outer rectangular frame; The inner partition is arranged inside the outer rectangular frame, and the inner partition divides the inner space of the outer rectangular frame into spaces suitable for mounting different sizes of first devices, and grooves for fixing cylindrical devices are formed in the inner partition; When there are a plurality of stackable sub-frames, two adjacent stackable sub-frames are connected by aligning the upper ends and the lower ends of the L-shaped extrusion structures at the corresponding positions to realize modular stacking, and the lower ends of the L-shaped extrusion structures of the upper stackable sub-frame are adaptively connected with the upper ends of the L-shaped extrusion structures of the lower stackable sub-frame; The inner partition is a flat plate structure composed of a plurality of I-shaped extrusion structures, the flat plate structure is arranged inside the outer rectangular frame, and the flat plate structure and the outer rectangular frame form a day-shaped frame structure, the flat plate structure divides the inner space of the outer rectangular frame into spaces suitable for mounting different sizes of first devices, and grooves for fixing cylindrical devices are formed in the flat plate structure; Alternatively, the inner partition is a cross-shaped structure composed of a plurality of I-shaped extrusion structures, the cross-shaped structure is arranged inside the outer rectangular frame, and the cross-shaped structure and the outer rectangular frame form a tian-shaped frame structure, the cross-shaped structure divides the inner space of the outer rectangular frame into spaces suitable for mounting different sizes of first devices, and grooves for fixing cylindrical devices are formed in the cross-shaped structure.

2. The stackable aluminum extrusion framed satellite structure of claim 1, wherein, The I-shaped extrusion structure further includes: at least one first side rib structure; The first side rib structure includes: a first side rib edge and a second side rib edge, one end of the first side rib edge and one end of the second side rib edge are connected at an internal angle to form an L-shaped structure, the other end of the first side rib edge is connected with the surface of the I-shaped outer contour flat plate structure, and the first side rib structure on the I-shaped extrusion structure constituting the outer wall plate is located on the inner side or the outer side of the stackable sub-frame.

3. The stackable aluminum extrusion framed satellite structure of claim 2, wherein, The second side rib edge of the first side rib structure is provided with at least one first connecting structure for mounting the second device.

4. The stackable aluminum extrusion framed satellite structure of claim 3, wherein, The first connecting structure is a bolt connection hole or a bolt connection slot; when the first connecting structure is one, it is a bolt connection hole or a bolt connection slot; when the first connecting structure is multiple, it can be a bolt connection hole alone, a bolt connection slot alone, or simultaneously include a bolt connection hole and a bolt connection slot.

5. The stackable aluminum extrusion framed satellite structure of claim 1, wherein, The I-shaped extrusion forming structure further comprises: at least one second side rib structure; the second side rib structure is a T-shaped structure composed of a third side rib edge and a fourth side rib edge; the third side rib edge is vertically arranged, one end of which is connected with the surface of the I-shaped outer contour flat plate structure, and the other end is perpendicularly connected with the middle part of the horizontally arranged fourth side rib edge; and the second side rib structure on the I-shaped extrusion forming structure constituting the outer wall plate is located on the inner side or the outer side of the stackable sub-frame.

6. The stackable aluminum extrusion framed satellite structure of claim 5, wherein, The fourth side rib edge of the second side rib structure is provided with at least one second connecting structure for mounting the second device.

7. The stackable aluminum extrusion framed satellite structure of claim 1, wherein, In the stackable sub-frame, the outer side of the outer wall plate is provided with a plurality of notches for bearing and mounting the third device; the shapes and sizes of the plurality of notches are different.

8. The stackable aluminum extrusion framed satellite structure of claim 1, wherein, The L-shaped extrusion forming structure is connected with the outer wall plate by welding; the outer wall plate and the inner partition plate are both composed of a plurality of I-shaped extrusion forming structures welded together.

9. The stackable aluminum extrusion framed satellite structure of claim 1, wherein, The L-shaped extrusion forming structure is designed according to the load carried by the rocket or the functional requirements of the satellite, and the cross-sectional size, rib structure type and geometric shape are extruded along the first direction; the I-shaped extrusion forming structure is designed according to the load carried by the rocket or the functional requirements of the satellite, and the cross-sectional size, rib structure type and geometric shape are extruded along the second direction, and the first direction and the second direction are the same.

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