Multiple subarray deployable panel antenna compact release mechanism and satellite

Abstract

The application provides a compact release mechanism of a multi-subarray deployable flat panel antenna, which comprises a mounting base plate, an antenna compacting plate, a pyrotechnic cutter, an elastic member, a wedge-shaped compacting block, a matching compacting block and a plurality of compacting cone sleeve assemblies; the mounting base plate is provided with a flat panel antenna mounting position. The compact release mechanism has a locking state and a release state; when the compact release mechanism is in the locking state, the compacting rod of the pyrotechnic cutter is tightened to compact the flat panel antenna and keep the folding state; when the compact release mechanism is in the release state, the compacting rod of the pyrotechnic cutter is damaged, the antenna compacting plate rotates around the mounting base plate under the action of the elastic member, and the multi-subarray deployable flat panel antenna is in the unfolded state. The compact release mechanism provided by the application is stable in structure, can compact multiple sub-panels, and has high adaptability to the current flat panel antenna payload satellites.

Description

TECHNICAL FIELD

[0001] The present application relates to the satellite technology field in aerospace technology, and particularly relates to a multi-subarray deployable flat panel antenna compression release mechanism and a satellite. BACKGROUND

[0002] Satellites carrying flat panel payloads generally have active transmitting and receiving capabilities, especially microwave payloads have the function of penetrating clouds and the like, so satellites carrying such payloads are not affected by light conditions, clouds, rain, and other adverse weather conditions, and have all-weather and all-day working conditions, which is one of the most effective means to cope with observations under adverse weather conditions. The flat panel antennas carried on the satellites are generally compressed by compression rods, but the compression rods have good compression and release functions for no more than 2 sub-panels, but are no longer suitable for antennas with multiple stacked sub-panels. With the increasing demand for large-aperture and large-size flat panel antennas in recent years, developing a compression release mechanism that can fold and compress flat panel antennas with multiple sub-panels and can be deployed has become one of the problems that need to be urgently solved in current satellite applications.

[0003] Patent document CN 108910092 A discloses a split type space flexible arm compression release mechanism, which belongs to the technical field of space flexible arm compression release mechanisms. In the present application, the top of the left compression cover plate is provided with a pyrotechnic device and a left support seat, and the top of the right compression cover plate is provided with a right support seat and a stop block. A locking screw is threadedly connected with the left support seat through a compression spring, the right support seat, and the pyrotechnic device. During satellite launch, the flexible arm can be reliably compressed. When unlocked, the left pyrotechnic device is powered to ignite the explosive, the pyrotechnic cutter cuts off the locking screw, the locking screw is separated from the pyrotechnic device under the action of the compression spring, and is parked on the stop block, and the compression cover plate is unfolded to both sides. However, this scheme still only applies to flat panel antennas with no more than 2 sub-panels due to the split type and only two compression cover plates on the left and right sides. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the present application is to provide a multi-subarray deployable flat panel antenna compression release mechanism and a satellite.

[0005] According to the present application, a multi-subarray deployable flat panel antenna compression release mechanism is provided, which comprises a mounting bottom plate, an antenna compression plate, a pyrotechnic cutter, an elastic member, a wedge-shaped compression block, and a matching compression block.

[0006] The antenna compression plate is rotationally connected to the mounting bottom plate, and the elastic member is arranged between the antenna compression plate and the mounting bottom plate. The top end of the antenna compression plate is connected to the matching compression block. The pyrotechnic cutter is mounted on the antenna compression plate.

[0007] The mounting base is provided with an antenna mounting position for mounting a multi-subarray deployable flat panel antenna; the multi-subarray deployable flat panel antenna comprises a top subpanel, a middle subpanel group and a bottom subpanel; the middle subpanel group comprises a plurality of middle subpanels connected in sequence; the top subpanel and the middle subpanel group, the plurality of middle subpanels and the middle subpanel group and the bottom subpanel are rotatably connected; the top subpanel is provided with a first mounting hole; the wedge-shaped pressing block is connected to the top subpanel;

[0008] The pressing release mechanism of the multi-subarray deployable flat panel antenna has a locking state and a release state; the multi-subarray deployable flat panel antenna has a folded state and an unfolded state;

[0009] When the pressing release mechanism of the multi-subarray deployable flat panel antenna is in the locking state, the multi-subarray deployable flat panel antenna is in the folded state, the end of the pressing rod of the pyrotechnic cutter matches the first mounting hole of the antenna pressing plate; the wedge-shaped pressing block matches the matching pressing block;

[0010] When the pressing release mechanism of the multi-subarray deployable flat panel antenna is in the release state, the pressing rod of the pyrotechnic cutter is damaged, the antenna pressing plate rotates around the mounting base under the action of the elastic member, and the multi-subarray deployable flat panel antenna is in the unfolded state.

[0011] Preferably, the elastic member is a torsion spring.

[0012] Preferably, it further comprises a limiting block mounted on the mounting base for limiting the rotation angle of the antenna pressing plate.

[0013] Preferably, the antenna pressing plate and the mounting base are rotatably connected through a hinge.

[0014] Preferably, the top subpanel, the bottom subpanel and the middle subpanel each comprise a subpanel main body and a frame structure;

[0015] The frame structure of the top subpanel is arranged on the side of the top subpanel close to the antenna pressing plate; the frame structure of the middle subpanel is arranged on the side of the middle subpanel close to the antenna pressing plate; and the frame structure of the bottom subpanel is arranged on the side of the bottom subpanel close to the antenna pressing plate;

[0016] The first mounting hole is arranged on the side of the frame structure of the top subpanel; and the wedge-shaped pressing block is connected to the frame structure of the top subpanel.

[0017] The frame structure of the top subpanel, the bottom subpanel and the middle subpanel is provided with a pressing taper sleeve assembly.

[0018] When the compression release mechanism of the multi-subarray deployable flat antenna is in the locked state, the compression taper sleeve assemblies of the different sub-panels match each other; the compression rod of the pyrotechnic cutter is parallel to the mounting base plate.

[0019] Preferably, the thickness of the compression taper sleeve assembly satisfies the following condition:

[0020] When the compression release mechanism of the multi-subarray deployable flat antenna is in the locked state, the first distance exists between the top sub-panel and the middle sub-panel group, between the multiple middle sub-panels, and between the middle sub-panel group and the bottom sub-panel.

[0021] Preferably, the compression taper sleeve assembly includes a first compression taper sleeve or a second compression taper sleeve.

[0022] When the compression release mechanism of the multi-subarray deployable flat antenna is in the locked state, the first compression taper sleeve or the second compression taper sleeve on the top sub-panel matches the second compression taper sleeve or the first compression taper sleeve on the top middle sub-panel.

[0023] The first compression taper sleeve or the second compression taper sleeve on the middle sub-panel matches the second compression taper sleeve or the first compression taper sleeve on the adjacent middle sub-panel.

[0024] The first compression taper sleeve or the second compression taper sleeve on the bottom middle sub-panel matches the second compression taper sleeve or the first compression taper sleeve on the bottom sub-panel.

[0025] Preferably, when the compression release mechanism of the multi-subarray deployable flat antenna is in the released state, the rotation angle of the antenna compression plate is greater than or equal to 16°.

[0026] Preferably, the first compression taper sleeve is a cylindrical base with an outward convex height of 5 mm and a convex structure with a taper angle of 85°.

[0027] The second compression taper sleeve is a basin-shaped structure with a cylindrical base, an inward concave depth of 6 mm, and a taper angle of 85°.

[0028] According to the present application, a satellite is provided, which includes the compression release mechanism of the multi-subarray deployable flat antenna.

[0029] Compared with the prior art, the present application has the following beneficial effects:

[0030] 1、The present application applies compression force to the multi-subarray deployable flat antenna through the wedge-shaped compression block while tightening the thread structure of the compression rod and the first mounting hole, and the compression taper sleeve assembly transmits the compression force, so as to achieve the purpose of compressing and keeping the flat antenna in the folded state.

[0031] 2、The compact release mechanism of the multi-subarray deployable flat panel antenna is simple in structure and stable, and can compact multiple sub-panels. BRIEF DESCRIPTION OF DRAWINGS

[0032] Other features, objects, and advantages of the application will become more apparent from the following detailed description when read in connection with the following drawings:

[0033] Figure 1 Structure schematic view of the application in the locked state;

[0034] Figure 2 Structure schematic view of the application in the released state.

[0035] The drawings show:

[0036] DETAILED DESCRIPTION

[0037] The application will be described in detail below with specific embodiments. The following examples will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be noted that for those skilled in the art, without departing from the concept of the application, a number of changes and improvements can be made. These are within the scope of the application.

[0038] The application provides a compact release mechanism of a multi-subarray deployable flat panel antenna, characterized by comprising a mounting base plate 1, an antenna compacting plate 3, a pyrotechnic cutter 6, an elastic member 7, a wedge-shaped compacting block 9, a matching compacting block 10, and a limiting block 8.

[0039] The antenna compacting plate 3 is rotationally connected to the mounting base plate 1, and the elastic member 7 is arranged between the antenna compacting plate 3 and the mounting base plate 1; the top end of the antenna compacting plate 3 is connected to the matching compacting block 10, preferably, the matching compacting block 10 is integrally connected to the antenna compacting plate 3, and the antenna compacting plate 3 is tightly connected to the matching compacting block 10; the pyrotechnic cutter 6 is mounted on the antenna compacting plate 3; preferably, the elastic member 7 is a torsion spring, and the antenna compacting plate 3 is rotationally connected to the mounting base plate 1 through a hinge.

[0040] The mounting base 1 is provided with an antenna mounting position for mounting the multi-subarray deployable flat panel antenna 11, and ensures the pressing and deployment precision of the antenna; the multi-subarray deployable flat panel antenna 11 comprises a top subpanel 111, a middle subpanel group 112 and a bottom subpanel 113; the middle subpanel group 112 comprises a plurality of middle subpanels connected in sequence; the top subpanel 111 and the middle subpanel group 112, the plurality of middle subpanels and the middle subpanel group 112 and the bottom subpanel 113 are rotatably connected; preferably, the rotatable connection is a hinge connection; the top subpanel 111 is provided with a first mounting hole; and the wedge-shaped pressing block 9 is connected to the top subpanel 111.

[0041] The pressing release mechanism of the multi-subarray deployable flat panel antenna has a locking state and a release state; the multi-subarray deployable flat panel antenna 11 has a folded state and a deployed state.

[0042] When the pressing release mechanism of the multi-subarray deployable flat panel antenna is in the locking state, the multi-subarray deployable flat panel antenna 11 is in the folded state, the end of the pressing rod of the pyrotechnic cutter 6 passes through the antenna pressing plate 3 and matches the first mounting hole, and the wedge-shaped pressing block 9 matches the matching pressing block 10. Specifically, the end of the pressing rod passes through the antenna pressing plate 3 and is fixed in the first mounting hole, preferably in a threaded manner.

[0043] When the pressing release mechanism of the multi-subarray deployable flat panel antenna is in the release state, the pressing rod of the pyrotechnic cutter 6 is damaged, the antenna pressing plate 3 rotates around the mounting base 1 under the action of the elastic member 7, and the multi-subarray deployable flat panel antenna 11 is in the deployed state.

[0044] The limiting block 8 is mounted on the mounting base 1 and is used to limit the rotation angle of the antenna pressing plate 3.

[0045] The top subpanel 111, the bottom subpanel 113 and the middle subpanel each comprise a subpanel main body 12 and a frame structure 13; the frame structure 13 of the top subpanel 111 is arranged on the side of the top subpanel 111 close to the antenna pressing plate 3; the frame structure 13 of the middle subpanel is arranged on the side of the middle subpanel close to the antenna pressing plate 3; the frame structure 13 of the bottom subpanel 113 is arranged on the side of the bottom subpanel 113 close to the antenna pressing plate 3; the first mounting hole is arranged on the side of the frame structure 13 of the top subpanel 111; and the wedge-shaped pressing block 9 is connected to the frame structure 13 of the top subpanel 111.

[0046] The frame structure 13 of the top subpanel 111, the bottom subpanel 113 and the middle subpanel is provided with a pressing taper sleeve assembly 2;

[0047] When the compression release mechanism of the multi-subarray deployable panel antenna is in the locked state, the compression taper sleeve assemblies 2 between different sub-panels match the compression rod of the initiating explosive cutter 6 and the mounting base plate 1.

[0048] When the compression release mechanism of the multi-subarray deployable panel antenna is in the released state, the rotation angle of the antenna compression plate 3 is greater than or equal to 16°.

[0049] The compression taper sleeve assembly 2 includes a first compression taper sleeve 4 or a second compression taper sleeve 5; the first compression taper sleeve 4 can match the second compression taper sleeve 5.

[0050] When the compression release mechanism of the multi-subarray deployable panel antenna is in the locked state, the first compression taper sleeve 4 or the second compression taper sleeve 5 on the top sub-panel 111 matches the second compression taper sleeve 5 or the first compression taper sleeve 4 on the top middle sub-panel; the first compression taper sleeve 4 or the second compression taper sleeve 5 on the middle sub-panel matches the second compression taper sleeve 5 or the first compression taper sleeve 4 on the adjacent middle sub-panel; the first compression taper sleeve 4 or the second compression taper sleeve 5 on the bottom middle sub-panel matches the second compression taper sleeve 5 or the first compression taper sleeve 4 on the bottom sub-panel 113. In a preferred example, the first compression taper sleeve 4 is a cylindrical base with a convex height of 5 mm and a convex structure with a taper angle of 85°; the second compression taper sleeve is a basin-shaped structure with a concave depth of 6 mm and a taper angle of 85° on the cylindrical base. In this preferred example, when the compression release mechanism of the multi-subarray deployable panel antenna is in the locked state, the sub-panels of the multi-subarray deployable panel antenna 11 are abutted by 4 pairs of compression taper sleeve assemblies 2, the taper sleeve material is titanium alloy TC4, and each taper sleeve transmits the axial compression force f V through the outer ring plane contact and transmits the transverse shear force f T through the inner ring taper surface contact. The compression taper sleeve assemblies 2 are embedded in each other to ensure contact stiffness when the antenna is folded, and the matched first compression taper sleeve 4 and the second compression taper sleeve 5 are separated from each other after the antenna is unfolded. In a preferred example, the top surface of the top sub-panel 111 is provided with 2 first compression taper sleeves 4 and 2 second compression taper sleeves 5; the top surface and the bottom surface of each middle sub-panel are provided with 2 first compression taper sleeves 4 and 2 second compression taper sleeves 5, the top surface and the bottom surface of the bottom sub-panel 113 are provided with 2 first compression taper sleeves 4 and 2 second compression taper sleeves 5, and the top surface of the mounting base plate 1 is also provided with 2 first compression taper sleeves 4 and 2 second compression taper sleeves 5.

[0051] The compression cone sleeve assembly 2 is used to isolate adjacent sub-plate bodies 12 and transfer compression force between different sub-plates, preventing the adjacent sub-plate bodies 12 from contacting or interacting with each other when the multi-subarray deployable flat panel antenna 11 is in the folded state, thereby causing damage to the sub-plate bodies 12. The thickness of the compression cone sleeve assembly 2 satisfies the following condition: when the compression release mechanism of the multi-subarray deployable flat panel antenna is in the locked state, the first distance is provided between the sub-plate body 12 of the top sub-plate 111 and the sub-plate body 12 of the middle sub-plate group 112, between the sub-plate bodies 12 of the plurality of middle sub-plates, and between the sub-plate body 12 of the middle sub-plate group 112 and the sub-plate body 12 of the bottom sub-plate. In a preferred embodiment, the first distance is 20 mm.

[0052] In a preferred embodiment, as shown in Figure 1 , Figure 2 The number of antenna compression plates 3 is 2, which are respectively installed at both ends of the mounting base plate 1; the inner side top end of each antenna compression plate 3 is symmetrically provided with two matching compression blocks 10; the pyrotechnic cutter 6 is installed at the outer side of each antenna compression plate 3, and two symmetrically arranged elastic members 7 are provided between each antenna compression plate 3 and the mounting base plate 1.

[0053] In a preferred embodiment, the size of the mounting base plate 1 is 1.2 m x 0.94 m, which is used as the mounting base for the antenna, and the material of the mounting base plate 1 is aluminum alloy 2A14T6. The multi-subarray deployable flat panel antenna 11 is a microwave payload with an aperture of 4.8 m x 0.9 m, which is divided into 4 sub-plates; the sub-plates are connected by deployable hinges to ensure that the sub-plates can be folded and unfolded. In the above preferred embodiment, there is one antenna compression plate 3 on each side of the mounting base plate 1, and the material of the antenna compression plate 3 is aluminum alloy 2A14T6; the bottom end of the antenna compression plate 3 is connected to the mounting base plate 1 through a hinge.

[0054] In this preferred embodiment, when the compression release mechanism of the multi-subarray deployable flat panel antenna is in the locked state, the compression surface is provided on the wedge-shaped compression block 9 and the matching compression block 10, and the angle between the wedge-shaped compression block 9 and the multi-subarray deployable flat panel antenna 11 is defined as θ, that is, the inclination angle between the compression surface and the multi-subarray deployable flat panel antenna 11 is also θ, and in a preferred embodiment, θ = 13.8°. The end of the compression rod of the pyrotechnic cutter 6 passes through the first mounting hole of the antenna compression plate 3 and matches the compression surface on the wedge-shaped compression block 9 and the compression surface on the matching compression block 10 through a threaded structure, and a pre-tightening force f p is applied through the threaded structure. After the pre-tightening force is applied, the matching compression block 10 applies a compression force to the multi-subarray deployable flat panel antenna 11 in the compressed state through the wedge-shaped compression block 9. Without loss of generality, it is assumed that the contact surface friction coefficient is very small and tends to 0, and it can be known that the compression force between the sub-plates is f V = fp / tanθ, so that a greater compression force can be generated to ensure reliable compression of the antenna.

[0055] In this preferred example, the pyrotechnic cutter 6 unlocks the compression rod after being initiated, and the antenna compression plate 3 is flipped outward by 16° under the action of the root elastic member 7, and then is locked by the combined action of the elastic member 7 and the limiting block 8. At this time, the compression release mechanism of the multi-subarray deployable panel antenna is in the released state, and the multi-subarray deployable panel antenna 11 is in the deployed state.

[0056] The working principle of the present application is as follows:

[0057] In order to meet the needs of satellite launch, the multi-subarray deployable panel antenna 11 needs to be folded for storage. This can be achieved by folding the multi-subarray deployable panel antenna 11 by 180° after being connected by hinges.

[0058] After adjusting the multi-subarray deployable panel antenna 11 to the folded state on the ground, the multi-subarray deployable panel antenna 11 is installed on the compression release mechanism of the multi-subarray deployable panel antenna; then the different compression cone sleeve assemblies 2 are matched with each other; the wedge-shaped compression block 9 is matched with the matching compression block 10; and then the end of the compression rod of the pyrotechnic cutter 6 is inserted through the antenna compression plate 3 and matched with the first mounting hole, i.e. the end of the compression rod and the first mounting hole are screwed together through the threaded structure. At this time, the compression release mechanism of the multi-subarray deployable panel antenna remains in the locked state, and the multi-subarray deployable panel antenna 11 remains in the folded state. In one preferred example, the pyrotechnic cutter is model SZN24-1.

[0059] When the multi-subarray deployable panel antenna 11 needs to be deployed, the pyrotechnic cutter 6 is initiated, the compression rod is unlocked, i.e. the compression rod is broken, the antenna compression plate 3 rotates around the mounting bottom plate 1 under the action of the elastic member 7, the compression release mechanism of the multi-subarray deployable panel antenna is switched to the released state, and the multi-subarray deployable panel antenna 11 is in the deployed state.

[0060] In one preferred example, the power for changing from the folded state to the deployed state is the inter-plate hinge or the deployment motor between the plates.

[0061] Locking devices can also be provided on the multi-subarray deployable panel antenna 11 to ensure that the panel antenna can be locked after being deployed into a flat panel.

[0062] The present application adopts a torsion spring and a limiting block 8 to limit and lock the antenna compression plate 3 after unfolding. Specifically, the antenna compression plate 3 is installed on both sides of the mounting plate 1, and after the top explosive cutter 6 is unlocked, the antenna compression plate 3 is turned outwards by 16° under the action of the elastic member 7, and then the limiting block 8 limits and locks the antenna compression plate 3 after unfolding.

[0063] The present application applies a wedge-shaped pressing block 9 to the multi-subarray deployable flat plate antenna 11 to exert a compression force while the compression rod is screwed into the thread structure of the first mounting hole, and the compression cone sleeve assembly 2 transmits the compression force, so as to achieve the purpose of compressing and keeping the flat plate antenna in a folded state. It is worth noting that due to the adoption of the wedge-shaped pressing block 9 design, the matching pressing block 10 can exert a transverse torque on the wedge-shaped pressing block 9, and also can exert a longitudinal compression force to compress the multi-subarray deployable flat plate antenna. After the compression rod is unlocked, the antenna compression plate 3 is locked after being turned outwards by 16° under the action of the root torsion spring, and the antenna is unfolded to a flat plate antenna under the action of the inter-plate hinge.

[0064] The present application provides a multi-subarray deployable flat plate antenna compression release mechanism which is stable in structure, can fold and compress multiple flat plate antennas, has a high utilization rate of fairing envelope space, and has high adaptability to current flat plate antenna payload satellites.

[0065] The present application provides a new design method for the antenna compression release mechanism design technology of a satellite carrying a flat plate antenna payload in China, and especially becomes the first choice for remote sensing and communication satellite designers when a large flat plate antenna is installed on a satellite. The application will be widely used in the field.

[0066] The present application also provides a satellite comprising the multi-subarray deployable flat plate antenna compression release mechanism.

[0067] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0068] The specific embodiments of the present application have been described above. It should be understood that the present application is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the present application. The embodiments of the present application and the features in the embodiments can be arbitrarily combined without conflict.

Claims

1. A clamping and releasing mechanism for a multi-subarray deployable planar antenna, characterized in that, Includes mounting base plate (1), antenna clamping plate (3), pyrotechnic cutter (6), elastic element (7), wedge-shaped clamping block (9) and matching clamping block (10); The antenna clamping plate (3) is rotatably connected to the mounting base plate (1), and an elastic element (7) is provided between the antenna clamping plate (3) and the mounting base plate (1); a matching pressure block (10) is connected to the top of the antenna clamping plate (3); the pyrotechnic cutter (6) is installed on the antenna clamping plate (3); The mounting base plate (1) is provided with an antenna mounting position for mounting a multi-subarray deployable flat panel antenna (11); the multi-subarray deployable flat panel antenna (11) includes a top sub-plate (111), a middle sub-plate group (112), and a bottom sub-plate (113); the middle sub-plate group (112) includes multiple middle sub-plates connected in sequence; the top sub-plate (111) and the middle sub-plate group (112), the multiple middle sub-plates, and the middle sub-plate group (112) and the bottom sub-plate can be rotatably connected; the top sub-plate (111) is provided with a first mounting hole; the wedge-shaped pressure block (9) is connected to the top sub-plate (111); The clamping and releasing mechanism of the multi-subarray deployable flat panel antenna has a locked state and a released state; the multi-subarray deployable flat panel antenna (11) has a folded state and an unfolded state; When the clamping and releasing mechanism of the multi-subarray deployable flat panel antenna is in the locked state, the multi-subarray deployable flat panel antenna (11) is in the folded state, the end of the clamping rod of the pyrotechnic cutter (6) passes through the antenna clamping plate (3) and matches the first mounting hole; the wedge-shaped clamping block (9) matches the matching clamping block (10); When the clamping and releasing mechanism of the multi-subarray deployable flat panel antenna is in the released state, the clamping rod of the pyrotechnic cutter (6) is destroyed, the antenna clamping plate (3) rotates around the mounting base plate (1) under the action of the elastic element (7), and the multi-subarray deployable flat panel antenna (11) is in the deployed state.

2. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 1, characterized in that, The elastic element (7) is a torsion spring.

3. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 1, characterized in that, It also includes a limiting block (8), which is installed on the mounting base plate (1) to limit the rotation angle of the antenna clamping plate (3).

4. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 1, characterized in that, The antenna clamping plate (3) rotates with the mounting base plate (1) via a hinge.

5. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 1, characterized in that, The top sub-panel (111), bottom sub-panel (113) and middle sub-panel each include a sub-panel body (12) and a frame structure (13). The frame structure (13) of the top sub-plate (111) is located on the side of the top sub-plate (111) close to the antenna clamping plate (3); the frame structure (13) of the middle sub-plate is located on the side of the middle sub-plate close to the antenna clamping plate (3); the frame structure (13) of the bottom sub-plate (113) is located on the side of the bottom sub-plate (113) close to the antenna clamping plate (3); The first mounting hole is provided on the side of the frame structure (13) of the top sub-plate (111); the wedge-shaped pressure block (9) is connected to the frame structure (13) of the top sub-plate (111); A clamping cone sleeve assembly (2) is provided on the frame structure (13) on the top sub-plate (111), bottom sub-plate (113) and middle sub-plate. When the clamping and releasing mechanism of the multi-subarray deployable flat panel antenna is in the locked state, the clamping cone sleeve assembly (2) between the different sub-plates is matched with each other; the clamping rod of the pyrotechnic cutter (6) is parallel to the mounting base plate (1).

6. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 5, characterized in that, The thickness of the clamping cone sleeve assembly (2) satisfies the following condition: When the clamping and releasing mechanism of the multi-subarray deployable flat panel antenna is in the locked state, there is a first distance between the top sub-plate (111) and the middle sub-plate group (112), between the multiple middle sub-plates, and between the middle sub-plate group (112) and the bottom sub-plate.

7. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 5, characterized in that, The clamping cone sleeve assembly (2) includes a first clamping cone sleeve (4) or a second clamping cone sleeve (5); When the clamping and releasing mechanism of the multi-subarray deployable flat panel antenna is in the locked state, the first clamping cone sleeve (4) or the second clamping cone sleeve (5) on the top sub-plate (111) matches the second clamping cone sleeve (5) or the first clamping cone sleeve (4) on the middle sub-plate located at the top. The first clamping cone sleeve (4) or the second clamping cone sleeve (5) on the intermediate subplate is matched with the second clamping cone sleeve (5) or the first clamping cone sleeve (4) on the adjacent intermediate subplate; The first clamping cone sleeve (4) or the second clamping cone sleeve (5) on the bottom middle subplate matches the second clamping cone sleeve (5) or the first clamping cone sleeve (4) on the bottom subplate (113).

8. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 3, characterized in that, When the clamping and releasing mechanism of the multi-subarray deployable flat panel antenna is in the released state, the rotation angle of the antenna clamping plate (3) is greater than or equal to 16°.

9. The clamping and releasing mechanism of the multi-subarray deployable planar antenna according to claim 7, characterized in that, The first clamping cone sleeve (4) is a cylindrical base with a protrusion height of 5mm and a cone angle of 85°. The second clamping cone sleeve (5) is a basin-shaped structure with an indentation depth of 6mm and a cone angle of 85° on a cylindrical base.

10. A satellite comprising a clamping and releasing mechanism for a multi-subarray deployable flat panel antenna as described in any one of claims 1-9.

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