Release device and release system for stacked flat-panel satellite

Abstract

The present invention provides a release device and a release system for a stacked flat-panel satellite, and relates to the technical field of flat-panel satellites. The release device includes a first release device, a second release device, and a base; the first release device has an initial state and a release state, in which the first end of the first release device is connected to the base, and the second end is pressed against the top of the stacked flat-panel satellite, and in the release state, the first end is disconnected from the base, and the second end is detached from the top of the stacked flat-panel satellite; the second release device has an initial state and a release state, in which the third end of the second release device is connected to the base, and the fourth end is pressed against the middle of the stacked flat-panel satellite between the top and the bottom, and in the release state, the third end is movable relative to the base, and the fourth end is detached from the middle of the stacked flat-panel satellite; the release state of the first release device can trigger the release state of the second release device, reducing or avoiding the separation and collision problem when releasing the stacked flat-panel satellite.

Description

Technical Field

[0001] The present invention relates to the technical field of flat-panel satellites, and in particular to a releasing device and a releasing system for stacked flat-panel satellites. Background Art

[0002] The separation technology of stacked flat-panel satellites is the key technology for the successful launch of stacked flat-panel satellites into the predetermined orbit, and the most critical issue is the near-field safety of stacked flat-panel satellites. Flat-panel satellites rotate around the center of mass. Under the initial action of the rotation separation speed, due to the characteristics and differences of the moment of inertia matrix, the problem of separation and collision on orbit is inevitable. The more stacked satellites there are in a single batch, the more serious and complex the separation and collision problem will be, endangering the safety of the flat-panel satellites themselves.

[0003] At present, most satellite developers at home and abroad are enduring on-orbit collisions of satellites, avoiding the solution to the separation collision problem at the cost of losing some satellites. There is no effective method for the separation collision problem.

[0004] Therefore, it is necessary to propose a release device for stacked flat-panel satellites that can be used to solve the separation collision problem. Summary of the invention

[0005] The purpose of the present invention is at least to provide a releasing device and a releasing system for stacked flat-panel satellites, which can increase the separation interval between multiple flat-panel satellites and reduce or avoid the separation collision problem when releasing the stacked flat-panel satellites.

[0006] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0007] One of the embodiments of the present invention provides a release device for a stacked flat-panel satellite, the stacked flat-panel satellite extends along a stacking direction, the release device comprises a first release device, a second release device and a base; the base is arranged at the bottom of the stacked flat-panel satellite; the first release device has an initial state and a released state, the first release device comprises a first end and a second end, when the first release device is in the initial state, the first end is connected to the base, and the second end is pressed against the top of the stacked flat-panel satellite, when the first release device is in the released state, the first end is disconnected from the base, and the second end is detached from the top of the stacked flat-panel satellite; the second release device has an initial state and a released state, the second release device comprises a third end and a fourth end, when the second release device is in the initial state, the third end is connected to the base, and the fourth end is pressed against the middle part of the stacked flat-panel satellite between the top and the bottom, when the second release device is in the released state, the third end is movable relative to the base, and the fourth end is detached from the middle part of the stacked flat-panel satellite; the released state of the first release device can trigger the released state of the second release device.

[0008] In some embodiments, the first release device includes an unlocking mechanism and a first push rod; the unlocking mechanism is arranged at the first end, and the unlocking mechanism is used to break in response to the release state of the first release device; the unlocking mechanism is fixed relative to the base, and the unlocking mechanism is connected to the second end through the first push rod.

[0009] In some embodiments, the first release device includes a cover plate, which is arranged at the second end. When the first release device is in an initial state, the cover plate is pressed on the top of the stacked flat-panel satellite, and the unlocking mechanism is connected to the cover plate through a first push rod.

[0010] In some embodiments, the first release device includes a first elastic member, the unlocking mechanism is connected to the first push rod through the first elastic member, and the first elastic member is crimped between the unlocking mechanism and the first push rod.

[0011] In some embodiments, the first release device includes a first passive deployment mechanism, which includes a first coil spring, a first movable hinge and a first fixed hinge. The first coil spring is used to drive the first passive deployment mechanism to deploy, the first fixed hinge is connected to the base, and the first movable hinge is connected to the first push rod.

[0012] In some embodiments, the first release device includes a pressure plate and a second elastic member; the second elastic member is connected to the base; the unlocking mechanism is connected to the first push rod through the pressure plate, the second elastic member is crimped between the base and the pressure plate, and the first movable hinge is connected to the pressure plate; the pressure plate is connected to the first push rod through the first elastic member, and the first elastic member is crimped between the pressure plate and the first push rod.

[0013] In some embodiments, the second release device includes a second push rod and a pressure rod; the pressure rod is arranged at the fourth end, and when the second release device is in an initial state, the pressure rod is pressed against the edge of the middle part, and the pressure rod is connected to the third end through the second push rod.

[0014] In some embodiments, the second release device includes a second passive deployment mechanism, which is arranged at the third end. The second passive deployment mechanism includes a second coil spring, a second movable hinge seat and a second fixed hinge seat. The second coil spring is used to drive the second passive deployment mechanism to deploy. The second fixed hinge seat is connected to the base, and the second movable hinge seat is connected to the second push rod.

[0015] In some embodiments, the first release device includes a trigger member, and the second release device includes a second passive deployment mechanism and a coupling assembly; the trigger member is connected to the rotating shaft of the first coil spring, and the first coil spring drives the trigger member to rotate on the rotating shaft, and the trigger member triggers the coupling assembly to actuate during the rotation process; the coupling assembly includes a coupling member and a connecting member, the coupling member is fixed relative to the second fixed hinge seat, and the connecting member is used to connect the coupling member and the second movable hinge seat, and when the trigger member triggers the coupling assembly, the coupling member disconnects from the connecting member.

[0016] In some embodiments, the coupling part includes a coupling end and a telescopic rod, the coupling end protrudes from the coupling part, the coupling end is used to cooperate with the trigger part, and the telescopic rod is used to pass through a mounting hole set on the connecting part; when the trigger part rotates to contact the coupling end, the trigger part presses the coupling end, and the coupling end is retracted into the coupling part, so that the telescopic rod is retracted from the mounting hole, and the coupling part is disconnected from the connecting part.

[0017] The embodiment of the present specification also provides a release system for stacked flat-panel satellites, including the release device of the above embodiment, and also including a controller, the controller is used to send a release instruction to the release device, and the release instruction is used to trigger the release state of the first release device.

[0018] The release device of the stacked flat-panel satellite involved in the present invention is respectively provided with a first release device and a second release device, and the release of the first release device triggers the release of the second release device, forming a technical solution of multi-stage release with a release time difference, and the separation of the stacked flat-panel satellite is achieved through the multi-stage release, which provides a good solution to the separation and collision problem of the stacked flat-panel satellite. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals. Among them:

[0020] Figure 1is a schematic structural diagram of a release device for stacked flat-panel satellites according to some embodiments;

[0021] Figure 2 is a top view of a release device for stacked flat panel satellites according to some embodiments;

[0022] Figure 3 is a schematic structural diagram of a first end of a first release device according to some embodiments;

[0023] Figure 4 is a schematic diagram of the connection between the first end of the first release device and the first push rod according to some embodiments;

[0024] Figure 5 is a schematic structural diagram of a second releasing device according to some embodiments;

[0025] Figure 6 is a schematic structural diagram of a third end of a second release device according to some embodiments;

[0026] Figure 7 is a first view of a first passive deployment mechanism cooperating with a second passive deployment mechanism according to some embodiments;

[0027] Figure 8 is a second view of a first passive deployment mechanism cooperating with a second passive deployment mechanism according to some embodiments;

[0028] Fig. 9 is a schematic diagram of the internal structure of a coupling according to some embodiments;

[0029] Fig.10 is a schematic diagram of an initial state of a release device according to some embodiments;

[0030] Fig.11 is a schematic diagram of a release state of a first release device according to some embodiments;

[0031] Fig.12 is a schematic diagram of a release state of a second release device according to some embodiments. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0033] It should be understood that the "system", "device", "unit" and / or "module" used herein are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0034] Flowcharts are used in this specification to illustrate the operations performed by the system according to the embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed precisely in order. Instead, the steps may be processed in reverse order or simultaneously. At the same time, other operations may also be added to these processes, or one or more operations may be removed from these processes.

[0035] It should be understood that the technical terms that may be involved in the description of this specification, such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the implementation methods, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be understood as limiting the scope of protection of the invention.

[0036] It should be noted that the use of terms such as "first" and "second" to limit features is only for the convenience of distinguishing the corresponding features. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] The embodiment of the present specification provides a release device 100 for stacked flat-panel satellites, which is used to release the stacked flat-panel satellites in sequence to reduce or avoid separation and collision problems when releasing the stacked flat-panel satellites. The stacked flat-panel satellites referred to in the present specification refer to a plurality of flat-panel satellites stacked or overlapped, and the plurality of flat-panel satellites are stacked or overlapped in a stacking direction.

[0038] Figure 1 is a schematic diagram of the structure of a release device for stacked flat-panel satellites according to some embodiments. Figure 2 FIG. 1 is a top view of a release device for stacked flat-panel satellites according to some embodiments. Figure 1 and Figure 2 As shown, the release device 100 includes a first release device 1 , a second release device 2 and a base 3 .

[0039] The base 3 is used to support the stacked flat-panel satellite. The base 3 is disposed at the bottom of the stacked flat-panel satellite. In some embodiments, the base 3 includes a cylindrical structure, and the stacked flat-panel satellite is mounted on the cylindrical structure. In some embodiments, the base 3 includes a carrying platform for installing the cylindrical structure, the first release device 1, and the second release device 2.

[0040] The first release device 1 is used to release a portion of the flat-panel satellites. In some embodiments, the first release device 1 has an initial state and a released state. The second release device 2 The first release device 1 includes a first end and a second end. When the first release device 1 is in the initial state, the first end is connected to the base 3, and the second end is pressed against the top of the stacked flat-panel satellites. When the first release device is in the released state, the first end is disconnected from the base, and the second end is detached from the top of the stacked flat-panel satellites.

[0041] The second release device 2 is used to release another part of the flat panel satellites. In some embodiments, the second release device 2 has an initial state and a release state, and the second release device 2 includes a third end and a fourth end. When the second release device 2 is in the initial state, the third end is connected to the base 3, and the fourth end is pressed against the middle part of the stacked flat panel satellites between the top and the bottom. When the second release device 2 is in the release state, the third end is movable relative to the base, and the fourth end is detached from the middle part of the stacked flat panel satellites.

[0042] In some embodiments, the release state of the first release device 1 can trigger the release state of the second release device 2. When the first release device 1 is switched from the initial state to the release state, the first release device 1 is disconnected from the base 3, and the second end is detached from the top of the stacked flat-panel satellite, so that the flat-panel satellite between the top of the stacked flat-panel satellite and the fourth end of the second release device 2 is freed from the restraint, and separation occurs first. Then, the release state of the first release device 1 triggers the release state of the second release device 2. When the second release device 2 is switched from the initial state to the release state, the third end of the second release device 2 is movable relative to the base 3, and the fourth end is detached from the middle of the stacked flat-panel satellite between the top and the bottom, so that the flat-panel satellite between the base of the stacked flat-panel satellite and the fourth end of the second release device 2 is freed from the restraint, and then separation occurs.

[0043] In some embodiments of this specification, a first release device 1 and a second release device 2 are provided. By setting the release state of the first release device 1 to trigger the release state of the second release device 2, a part of the stacked flat-panel satellites are separated first, and another part of the flat-panel satellites are separated later. By increasing the separation interval between multiple flat-panel satellites, the problem of separation collision between satellites is reduced or avoided. It can be understood that the release device 100 also includes a third release device, a fourth release device or more, and the problem of separation collision between satellites is effectively solved by releasing in sequence twice or multiple times. For ease of explanation, this specification takes the release device 100 including the first release device 1 and the second release device 2 as an example for description, and the flat-panel satellite between the top of the stacked flat-panel satellite and the fourth end of the second release device 2 in the initial state is defined as the first part, and the flat-panel satellite between the base of the stacked flat-panel satellite and the fourth end of the second release device 2 is defined as the second part.

[0044] Continue to see Figure 1 and Figure 2 In some embodiments, the first release device 1 includes an unlocking mechanism 6. The unlocking mechanism 6 is arranged at the first end of the first release device 1, and the unlocking mechanism 6 is fixed relative to the base 3. The unlocking mechanism 6 is used to break in response to the release state of the first release device 1. In some embodiments, the unlocking mechanism 6 includes a non-explosive self-releasing bolt, an explosive bolt, a rupture bolt, a pyrotechnic, etc. The unlocking mechanism 6 can undergo structural fracture in the release state of the first release device to release the first part of the flat-panel satellite. In some embodiments, the first release device 1 includes a first push rod 4, and the first push rod 4 is used to connect the first end and the second end of the first release device 1. The unlocking mechanism 6 is connected to the second end through the first push rod 4. In some embodiments, the first release device 1 includes a cover plate 12, and the cover plate 12 is arranged at the second end. When the first release device 1 is in the initial state, the cover plate 12 is pressed on the top of the stacked flat-panel satellites, and the unlocking mechanism 6 is connected to the cover plate 12 through the first push rod 4.

[0045] In some embodiments, the first release device 1 includes an unlocking mechanism 6 and a first push rod 4 respectively arranged on both sides of the stacked flat-panel satellite, the cover plate 12 is a plate structure, and the unlocking mechanism 6 located on both sides of the stacked flat-panel satellite is respectively connected to both sides of the cover plate 12 through the first push rod 4. Under the action of the unlocking mechanism 6 and the first push rod 4, the stacked flat-panel satellite is fastened and restrained between the cover plate 12 and the base 3. When the unlocking mechanism 6 breaks in response to the release state of the first release device 1, the cover plate 12 is separated from the stacked flat-panel satellite to release the first part of the flat-panel satellite. It can be understood that, unless otherwise specified, the structures on both sides of the first release device 1 and the structures on both sides of the second release device 2 described below are similar or consistent.

[0046] Figure 3 is a schematic structural diagram of a first end of a first releasing device according to some embodiments. Figure 4 It is a schematic diagram of the connection between the first end of the first release device and the first push rod according to some embodiments.

[0047] In some embodiments, since the first part of flat panel satellites may also include multiple flat panel satellites, in order to reduce or avoid separation and collision of the first part of flat panel satellites, the separation intervals between the multiple flat panel satellites included in the first part of flat panel satellites are increased. Figure 3 and Figure 4 As shown, the first release device 1 includes a first elastic member 14, for example, the first elastic member 14 is a compression spring or a spring. The unlocking mechanism 6 is connected to the first push rod 4 through the first elastic member 14, and the first elastic member 14 is pressed between the unlocking mechanism 6 and the first push rod 4. When the unlocking mechanism 6 breaks in response to the release state of the first release device 1, the cover plate 12 is lifted by the elastic force of the first elastic member 14, but will not suddenly move away from the stacked flat-panel satellites, but will slowly detach under the action of the first elastic member 14, thereby increasing the separation interval between the plurality of flat-panel satellites included in the first part of the flat-panel satellites.

[0048] In some embodiments, Figure 3 As shown, the first release device 1 includes a first passive deployment mechanism 7, which is arranged between the base 3 and the first push rod 4, and the deployment torque of the first passive deployment mechanism 7 prompts the first release device 1 to be quickly released. In some embodiments, the first passive deployment mechanism 7 includes a first coil spring 71, a first fixed hinge seat 72 and a first movable hinge seat 73, the first coil spring 71 is used to drive the first passive deployment mechanism 7 to deploy, the first fixed hinge seat 72 is fixedly installed on the base 3, and the first movable hinge seat 73 is connected to the first push rod 4. In the initial state of the first release device 1, the first passive deployment mechanism 7 and the first elastic member 14 are in a pressure state. When the unlocking mechanism 6 breaks, the cover plate 12 is lifted under the elastic force of the first elastic member 14, and the cover plate 12 slowly separates from the stacked flat-panel satellites. The first part of the flat-panel satellites begins to separate, and the first coil spring 71 generates a rebound force to rotate the first movable hinge seat 73 relative to the first fixed hinge seat 72. The cover plate 12 is driven by the first push rod 4 to quickly move away from the stacked flat-panel satellites, prompting the first release device 1 to be quickly released. While increasing the separation interval between the multiple flat-panel satellites included in the first part of the flat-panel satellites, the separation of the first part of the flat-panel satellites is promoted to avoid the separation and collision between the first part of the flat-panel satellites and the second part of the flat-panel satellites.

[0049] In some embodiments, Figure 3 and Figure 4As shown, the first release device 1 includes a pressure plate 15 and a second elastic member 5 (such as a compression spring or a spring), and the second elastic member 5 is used to assist the first passive deployment mechanism 7 in actuating. The unlocking mechanism 6 is connected to the first push rod 4 through the pressure plate 15. The second elastic member 5 is connected to the base 3, and the second elastic member 5 is crimped between the base 3 and the pressure plate 15. The first movable hinge seat 73 of the first passive deployment mechanism 7 is connected to the pressure plate 15. The pressure plate 15 is connected to the first push rod 4 through the first elastic member 14, and the first elastic member 14 is crimped between the pressure plate 15 and the first push rod 4. In some embodiments, the second elastic member 5 and the first passive deployment mechanism 7 are arranged at both ends of the pressure plate 15, and the unlocking mechanism 6 is located between the second elastic member 5 and the first passive deployment mechanism 7. When the unlocking mechanism 6 breaks, the cover plate 12 is lifted under the elastic force of the first elastic member 14, so that the cover plate 12 slowly separates from the stacked flat-panel satellites, and the first part of the flat-panel satellites begins to separate. At the same time, the second elastic member 5 pushes the pressure plate 15, causing the pressure plate 15 to flip under the deployment torque of the first passive deployment mechanism 7, and the cover plate 12 is taken away from the top of the stacked flat-panel satellites by the first push rod 4, thereby realizing the rapid release of the first release device 1.

[0050] Figure 5 is a schematic structural diagram of a second releasing device according to some embodiments. Figure 6 is a schematic structural diagram of the third end of the second release device according to some embodiments.

[0051] like Figure 5 As shown, the second release device 2 includes a second push rod 18 and a pressure rod 17. The second push rod 18 is used to connect the third end and the fourth end of the second release device 2, and the pressure rod 17 is arranged at the fourth end of the second release device 2, and is used to press the second part of the flat-panel satellite. In some embodiments, the pressure rod 17 includes an arc structure, and the arc structure is adapted to the edge shape of the middle part of the stacked flat-panel satellite. In the initial state of the second release device 2, the pressure rod 17 is pressed on the edge of the flat-panel satellite located in the middle of the stacked flat-panel satellite, that is, it is pressed on the edge of the second part of the flat-panel satellite, so as to fasten the second part of the flat-panel satellite in the initial state of the second release device 2. In some embodiments, the second release device 2 includes second push rods 18 respectively arranged on both sides of the pressure rod 17, and the pressure rod 17 fastens the second part of the flat-panel satellite between the pressure rod 17 and the base 3 under the fastening force on both sides thereof.

[0052] In some embodiments, the second release device 2 includes a second passive deployment mechanism 10, which is disposed at the third end of the second release device 2, and is disposed between the base 3 and the second push rod 18, and the deployment torque of the second passive deployment mechanism 10 causes the second release device 2 to be released quickly. Figure 6As shown, the second passive deployment mechanism 10 includes a second coil spring 101, a second fixed hinge seat 102 and a second movable hinge seat 103. The second coil spring 101 is used to drive the second passive deployment mechanism 10 to deploy, the second fixed hinge seat 102 is fixedly mounted on the base 3, and the second movable hinge seat 103 is connected to the second push rod 18. In the initial state of the second release device 2, the second passive deployment mechanism 10 is in a pressure state. In the release state of the second release device 2, the second coil spring 101 generates a rebound force to rotate the second movable hinge seat 103 relative to the second fixed hinge seat 102, and the second push rod 18 drives the pressure rod 17 to quickly move away from the stacked flat-panel satellites, prompting the second release device 2 to be quickly released, and the second part of the flat-panel satellites are separated.

[0053] Figure 7 is a first view of a first passive deployment mechanism cooperating with a second passive deployment mechanism according to some embodiments. Figure 8 is a second view of the first passive deployment mechanism cooperating with the second passive deployment mechanism according to some embodiments.

[0054] In some embodiments, the release state of the first release device 1 triggers the release state of the second release device 2 through the linkage cooperation between the first passive deployment mechanism 7 and the second passive deployment mechanism 10. In some embodiments, the linkage cooperation between the first passive deployment mechanism 7 and the second passive deployment mechanism 10 is realized by the actuation cooperation between the trigger member 16 included in the first release device 1 and the coupling assembly included in the second release device 2. In some embodiments, the first release device 1 includes a trigger member 16, and the trigger member 16 is connected to the rotating shaft of the first coil spring 71. Among them, the first coil spring 71 is wound around its rotating shaft. In the release state of the first release device 1, the rebound of the first coil spring 71 can drive the rotating shaft to rotate, and then drive the trigger member 16 connected to the rotating shaft to rotate. In some embodiments, the second release device 2 includes a coupling assembly, and the coupling assembly includes a coupling member 19 and a connecting member 20. The coupling member 19 is fixed relative to the second fixed hinge seat 102, and the connecting member 20 is used to connect the fixed coupling member 19 with the second movable hinge seat 103.

[0055] During the rotation of the trigger member 16, the rotation of the trigger member 16 triggers the coupling member 19 to disconnect from the connecting member 20, and the connection between the second fixed hinge seat 102 and the second movable hinge seat 103 is disconnected. The second movable hinge seat 103 can rotate relative to the second fixed hinge seat 102 under the rebound action of the second coil spring 101, thereby triggering the release state of the second release device 2. The deployment of the second passive deployment mechanism 10 is triggered only after the first passive deployment mechanism 7 is deployed in place, that is, the release state of the second release device 1 is triggered only after the first release device 1 is released, thereby extending the separation interval between the first part of the flat-panel satellite and the second part of the flat-panel satellite to avoid separation and collision between the first part of the flat-panel satellite and the second part of the flat-panel satellite.

[0056] In some embodiments, the trigger member 16 is provided with a trigger end 161. When the trigger member 16 is driven to rotate by the rotating shaft, the trigger end 161 moves on a circle with the rotating shaft as the center. A through slot 191 is provided on the side of the coupling member 19 close to the trigger member 16. The through slot 191 extends along the movement path of the trigger end 161. A coupling end 27 is provided in the through slot 191. The coupling end 27 is protruded relative to the through slot 191. After the trigger end 161 moves into the through slot 191, it continues to move. When it contacts the coupling end 27, it presses the coupling end 27, so that the coupling member 19 is disconnected from the connecting member 20, thereby triggering the release state of the second release device 2.

[0057] It should be understood that the trigger member 16 can be provided on one of the first passive deployment mechanisms 7 on both sides of the first release device 1, and the coupling component can be provided on the corresponding one of the second passive deployment mechanisms 10 on both sides of the second release device 2. Alternatively, the trigger member 16 can be provided on both the first passive deployment mechanisms 7 on both sides of the first release device 1, and the coupling component can be provided on both the second passive deployment mechanisms 10 on both sides of the second release device 2.

[0058] Fig. 9 It is a schematic diagram of the internal structure of a coupling according to some embodiments.

[0059] In some embodiments, Fig. 9As shown, the coupling member 19 includes a coupling end 27 and a telescopic rod 25. The coupling end 27 is a convex cap structure, which protrudes from the coupling member 19. A mounting hole is provided on one end of the connecting member 20, and the telescopic rod 25 of the coupling member 19 is inserted into the mounting hole. The other end of the connecting member 20 is connected to the second movable hinge seat 103 to limit the second movable hinge seat 103. When the trigger end 161 rotates to contact the coupling end 27, the trigger end 161 presses the coupling end 27, and the coupling end 27 is recovered into the coupling member 19, so that the telescopic rod 25 is withdrawn from the mounting hole, and the coupling member 19 is disconnected from the connecting member 20. In some embodiments, a cavity is defined inside the coupling member 19, and a slider 30 is provided in the cavity. A first slot is provided on the slider 30, and the coupling end 27 is provided in the first slot. The coupling end 27 is connected to the first slot through a first compression spring 28. The slider 30 is provided with a second slot, the telescopic rod 25 is provided in the second slot, and a second compression spring 26 is provided between the second slot and the outer wall of the coupling 19. The coupling end 27 protrudes from the coupling 19 under the action of the first compression spring 28, thereby limiting the position of the slider 30 in the cavity, so that the second compression spring 26 is in a pressure state, and the telescopic rod 25 extends out of the coupling 19 and penetrates into the mounting hole of the connecting member 20. When the trigger end 161 rotates to contact the coupling end 27, the trigger end 161 presses the coupling end 27, the first compression spring 28 is compressed, and the coupling end 27 is retracted into the first slot. Under the rebound of the second compression spring 26, the slider 30 moves close to the side plate 29 of the coupling device, so that the telescopic rod 25 is retracted from the mounting hole, and the coupling member 19 is disconnected from the connecting member 20, and the constraint between the second fixed hinge seat 102 and the second movable hinge seat 103 is released. The second passive deployment mechanism 10 is deployed and locked, so that the second part of the flat-panel satellite constrained by the second release device 2 is released and separated from the carrier platform.

[0060] The embodiment of the present specification also relates to a release system for stacked flat-panel satellites, the release system comprising the release device 100 described in the above embodiment, and also comprising a controller, the controller is used to send a release instruction to the release device 100, the release instruction is used to trigger the release state of the first release device 1. The workflow of the release device 100 responding to the release instruction is as follows.

[0061] Fig.10 is a schematic diagram of an initial state of a release device according to some embodiments. Fig.11 is a schematic diagram of a release state of a first release device according to some embodiments. Fig.12 is a schematic diagram of a release state of a second release device according to some embodiments.

[0062] like Fig.10As shown, in the initial state of the release device 100, the first release device 1 and the second release device 2 are both in a locked state, and the first release device 1 and the second release device 2 jointly lock the stacked flat-panel satellite. The controller sends a release command to the release device 100. The unlocking mechanism 6 of the first release device 1 responds to the release command and performs unlocking. The unlocking mechanism 6 is disconnected from the first push rod 4. The first push rod 4 is lifted under the action of the first elastic member 14, so that the cover plate 12 is separated from the stacked flat-panel satellite, and the first part of the flat-panel satellite constrained by the first release device 1 begins to separate; at the same time, under the joint action of the elastic force of the second elastic member 5 and the unfolding torque of the first passive unfolding mechanism 7, the first release device 1 is quickly unfolded and locked, and the release state of the first release device 1 is as shown in FIG. Fig.11 As shown, the first part of the released flat-panel satellites is prevented from separating and colliding with the second part of the flat-panel satellites. After a period of time, the first release device 1 is released, and the trigger member 16 of the first release device 1 moves to the right position, triggering the second passive deployment mechanism 10 of the second release device 2 to be deployed and locked. Under the deployment torque of the second passive deployment mechanism 10, the second release device 2 is deployed and locked. The release state of the second release device 2 is as shown in FIG. Fig.12 As shown, the second portion of the flat-panel satellite constrained by the second releasing device 2 is released and separated from the base 3 .

[0063] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. In addition, unless explicitly stated in the claims, the order of elements and sequences, the use of alphanumeric characters, or the use of other names in this specification are not used to limit the order of the processes and methods of this specification. Although some embodiments of the invention currently considered useful are discussed through various examples in the above disclosure, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this specification.

Claims

1. A release device for stacked flat-panel satellites, wherein the stacked flat-panel satellites extend in a stacking direction, characterized in that: The release device comprises a first release device, a second release device and a base; The base is arranged at the bottom of the stacked flat-panel satellite; The first release device has an initial state and a release state, the first release device includes a first end and a second end, when the first release device is in the initial state, the first end is connected to the base, and the second end is pressed against the top of the stacked flat-panel satellite, when the first release device is in the release state, the first end is disconnected from the base, and the second end is detached from the top of the stacked flat-panel satellite; The second release device has an initial state and a release state, the second release device includes a third end and a fourth end, when the second release device is in the initial state, the third end is connected to the base, the fourth end is pressed against the middle portion of the stacked flat-panel satellite between the top and the bottom, when the second release device is in the release state, the third end is movable relative to the base, and the fourth end is detached from the middle portion of the stacked flat-panel satellite; The released state of the first release device can trigger the released state of the second release device.

2. The release device for stacked flat-panel satellites according to claim 1, characterized in that: The first release device includes an unlocking mechanism and a first push rod; The unlocking mechanism is disposed at the first end, and the unlocking mechanism is configured to break in response to a release state of the first release device; The unlocking mechanism is fixed relative to the base, and the unlocking mechanism is connected to the second end through the first push rod.

3. The release device for stacked flat-panel satellites according to claim 2, characterized in that: The first release device includes a cover plate, which is arranged at the second end. When the first release device is in the initial state, the cover plate is pressed on the top of the stacked flat-panel satellite, and the unlocking mechanism is connected to the cover plate through the first push rod.

4. The release device for stacked flat-panel satellites according to claim 2 or 3, characterized in that: The first release device includes a first elastic member, the unlocking mechanism is connected to the first push rod through the first elastic member, and the first elastic member is pressed between the unlocking mechanism and the first push rod.

5. The release device for stacked flat-panel satellites according to claim 4, characterized in that: The first release device includes a first passive unfolding mechanism, which includes a first coil spring, a first movable hinge seat and a first fixed hinge seat. The first coil spring is used to drive the first passive unfolding mechanism to unfold. The first fixed hinge seat is connected to the base, and the first movable hinge seat is connected to the first push rod.

6. The release device for stacked flat-panel satellites according to claim 5, characterized in that: The first release device includes a pressure plate and a second elastic member; The second elastic member is connected to the base; The unlocking mechanism is connected to the first push rod through the pressing plate, the second elastic member is crimped between the base and the pressing plate, and the first movable hinge is connected to the pressing plate; The pressing plate is connected to the first push rod through the first elastic member, and the first elastic member is crimped between the pressing plate and the first push rod.

7. The release device for stacked flat-panel satellites according to claim 6, characterized in that: The second release device includes a second push rod and a pressure rod; The pressure rod is arranged at the fourth end. When the second release device is in the initial state, the pressure rod is pressed against the edge of the middle portion. The pressure rod is connected to the third end through the second push rod.

8. The release device for stacked flat-panel satellites according to claim 7, characterized in that: The second release device includes a second passive unfolding mechanism, which is arranged at the third end. The second passive unfolding mechanism includes a second coil spring, a second movable hinge seat and a second fixed hinge seat. The second coil spring is used to drive the second passive unfolding mechanism to unfold. The second fixed hinge seat is connected to the base, and the second movable hinge seat is connected to the second push rod.

9. The release device for stacked flat-panel satellites according to claim 8, characterized in that: The first release device includes a trigger, and the second release device includes a second passive deployment mechanism and a coupling assembly; The trigger member is connected to the rotating shaft of the first coil spring, and the first coil spring drives the trigger member to rotate on the rotating shaft, and the trigger member triggers the coupling assembly to actuate during the rotation process; The coupling assembly includes a coupling part and a connecting part. The coupling part is fixed relative to the second fixed hinge seat. The connecting part is used to connect the coupling part and the second movable hinge seat. When the triggering part triggers the coupling assembly, the coupling part is disconnected from the connecting part.

10. The release device for stacked flat-panel satellites according to claim 9, characterized in that: The coupling member includes a coupling end and a telescopic rod, wherein the coupling end is protruding from the coupling member and is used to cooperate with the trigger member, and the telescopic rod is used to pass through a mounting hole provided on the connecting member; When the trigger member rotates to contact the coupling end, the trigger member presses the coupling end, and the coupling end is recovered into the coupling member, so that the telescopic rod is withdrawn from the mounting hole, and the coupling member is disconnected from the connecting member.

11. A release system for stacked flat panel satellites, characterized in that: The release device according to any one of claims 1 to 10 further comprises a controller, wherein the controller is used to send a release instruction to the release device, and the release instruction is used to trigger the release state of the first release device.

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