Compression release device and spacecraft

Abstract

The present invention discloses a clamping release device and a spacecraft, wherein the clamping release device comprises a first mounting base, a second mounting base, a flexible connector, an elastic member and a hot knife assembly; the first mounting base and the second mounting base are respectively fixedly connected to the flexible connector; the hot knife assembly is located between the first mounting base and the second mounting base, and is movably arranged on the second mounting base, and the flexible connector is located on the moving path of the hot knife assembly; the first end of the elastic member is connected to the second mounting base, and the second end of the elastic member is connected to the hot knife assembly, and the elastic member drives the hot knife assembly to abut against the flexible connector; the hot knife assembly is an electric heating structure, and the hot knife assembly fuses the flexible connector when power is turned on. The above scheme can achieve the technical effects of simplifying the structure, reducing the impact load and reducing pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of compression and release devices for spacecraft, and in particular to a compression and release device and a spacecraft. Background Art

[0002] With the continuous development of space technology, the application scale of spacecraft (including artificial satellites, deep space probes, etc.) is constantly expanding. Locking and unlocking is a key technology for spacecraft in orbit, which is used to achieve key actions such as solar wing deployment, antenna deployment, and payload release. This technology needs to be realized based on the compression release device.

[0003] The relevant compression release devices are usually of the pyrotechnic type, and their technology is relatively mature and stable, but they have obvious defects such as heavy weight, large impact load, and serious explosion pollution. Summary of the invention

[0004] The invention discloses a compression release device and a spacecraft, which can simplify the structure, reduce the impact load and reduce pollution.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] In one aspect, the present invention provides a hold-down release device comprising a first mounting base, a second mounting base, a flexible connector, an elastic member, and a hot knife assembly;

[0007] The first mounting base and the second mounting base are respectively fixedly connected to the flexible connecting member;

[0008] The hot knife assembly is located between the first mounting base and the second mounting base, and is movably disposed on the second mounting base, and the flexible connector is located on a moving path of the hot knife assembly;

[0009] The first end of the elastic member is connected to the second mounting base, the second end of the elastic member is connected to the hot knife assembly, and the elastic member drives the hot knife assembly to abut against the flexible connecting member;

[0010] The hot knife assembly is an electric heating structure, and the hot knife assembly melts the flexible connector when power is supplied.

[0011] On the other hand, the present invention provides a spacecraft, which includes a first component, a second component and the aforementioned clamping release device, wherein the clamping release device is connected to the first component through the first mounting base and is connected to the second component through the second mounting base.

[0012] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0013] In the compression and release device disclosed in the present invention, the flexible connector connects the first mounting base and the second mounting base in series, and the first mounting base and the second mounting base can be installed on the connected component of the spacecraft, thereby realizing the compression and locking function; at the same time, the hot knife assembly is an electric heating structure, and when the connected component of the spacecraft needs to be released, the hot knife assembly can be energized to melt the flexible connector, thereby realizing the release of the connected component; because the elastic member drives the hot knife assembly to abut against the flexible connector, that is, the elastic member provides a certain pre-tightening effect for the hot knife assembly, so that the hot knife assembly always maintains reliable contact with the flexible connector in the process of gradually melting the flexible connector, thereby ensuring the smooth realization of the release function of the compression and release device.

[0014] Compared with the related art, the compression release device disclosed in the present invention is a non-pyrotechnic structure. When realizing its release function, the impact load is undoubtedly smaller and no explosion pollution will be generated. At the same time, the hot knife assembly has a simple structure, which can undoubtedly simplify the structure of the entire device and effectively meet the lightweight requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a structural schematic diagram of a compression and release device disclosed in an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the exploded structure of the compression and release device disclosed in the embodiment of the present invention;

[0019] Figure 3 It is a front view of the compression and release device disclosed in the embodiment of the present invention;

[0020] Figure 4 For about Figure 3 A-A sectional view;

[0021] Figure 5 and Figure 6 This is a structural schematic diagram of a compression and release device disclosed in an embodiment of the present invention with some structures hidden;

[0022] Figure 7 It is a schematic structural diagram of a tightening joint disclosed in an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 100 - first mounting base,

[0025] 200 - second mounting base, 210 - first guide rod, 220 - second guide rod,

[0026] 300-Flexible connector,

[0027] 400 - hot knife assembly, 410 - carrier plate, 411 - first main body, 412 - conductive part, 420 - heating wire, 500 - elastic member,

[0028] 600-preload slider, 610-connecting part, 611-first avoidance hole, 620-first sliding arm, 630-second sliding arm, 640-accommodating space,

[0029] 700 - Mounting hole,

[0030] 800 - tightening joint, 810 - second main body, 811 - second avoidance hole, 820 - elastic claw, 821 - straight section, 822 - tightening section. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] The technical solutions disclosed in various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] Please refer to Figure 1 to Figure 7 , an embodiment of the present invention discloses a clamping release device. It should be noted that the clamping release device fixes the solar wing at an appropriate position of a spacecraft (such as an artificial satellite), and when the spacecraft is launched, it ensures that the outermost contour of the solar wing does not exceed the dynamic envelope of the carrier rocket and withstands the load conditions of the launch; secondly, after the spacecraft enters orbit, it can release the fixed constraints on the solar wing according to the program control instructions on the spacecraft or the ground remote control instructions. The solar wing is a solar sail panel, which is a device for collecting solar energy and serves as an energy source for the spacecraft.

[0034] The compression release device of this embodiment includes a first installation base 100 , a second installation base 200 , a flexible connector 300 , a hot knife assembly 400 and an elastic member 500 .

[0035] The first mounting base 100 and the second mounting base 200 are the basic components of the clamping and releasing device, and the two play the role of connecting and fixing the connected components of the spacecraft, that is, realizing the clamping and locking function of the clamping and releasing device on the connected components of the spacecraft; at the same time, the first mounting base 100 and the second mounting base 200 also provide a mounting base for other components of the clamping and releasing device. In the following content of this embodiment, it is taken as an example that other components of the clamping and releasing mechanism are mainly arranged on the second mounting base 200, but this embodiment does not limit the implementation method that these components can be arranged on the first mounting base 100.

[0036] Specifically, the first mounting base 100 and the second mounting base 200 are respectively fixedly connected to the flexible connector 300, so that the first mounting base 100 is connected to the second mounting base 200 through the flexible connector 300. Since the first mounting base 100 and the second mounting base 200 are respectively installed on the connected components of the spacecraft, the clamping and locking function of the clamping release device on the connected components of the spacecraft is successfully realized.

[0037] It should be understood that the flexible connector 300 serves to connect the first mounting base 100 and the second mounting base 200, and the present embodiment does not limit the matching relationship between the first mounting base 100 and the second mounting base 200. For example, the first mounting base 100 can be overlapped on the second mounting base 200, or, in order to ensure that the clamping and releasing device can effectively perform clamping and locking, the first mounting base 100 and the second mounting base 200 can be assembled through an adjustable fixing component (electromagnet, electric control lock, etc.).

[0038] The flexible connector 300 and the hot knife assembly 400 are both functional components of the compression release device. The hot knife assembly 400 can be used to cut off the flexible connector 300 and separate the first mounting base 100 and the second mounting base 200, thereby releasing the connected components of the spacecraft.

[0039] In this embodiment, the hot knife assembly 400 is located between the first installation base 100 and the second installation base 200. After installation, the first installation base 100 and the second installation base 200 have a certain distance, and a certain installation space is formed between the two to facilitate the installation of the hot knife assembly 400. It should be noted that the above-mentioned installation space refers to the installation space formed by the main parts of the first installation base 100 and the second installation base 200. The second installation base 200 may be provided with a first support arm and a second support arm, and the first installation base 100 may be installed on the first support arm and the second support arm, thereby forming an installation space between the first installation base 100 and the second installation base 200. See Figure 1 .

[0040] The hot knife assembly 400 of this embodiment is an electric heating structure, and the hot knife assembly 400 melts the flexible connector 300 when it is powered on. It should be understood that the hot knife assembly 400 will be supplied with energy when it is powered on, and the hot knife assembly 400 will be continuously heated. When it rises to a critical temperature, it can melt the flexible connector 300, thereby separating and releasing the first installation base 100 and the second installation base 200. Of course, it is necessary to keep the hot knife assembly 400 in contact with the flexible connector 300 during installation so that the hot knife assembly 400 can melt the flexible connector 300.

[0041] Since the flexible connector 300 has a certain radial dimension, the hot knife assembly 400 will only melt the portion of the flexible connector 300 close to the hot knife assembly 400 when working, while the flexible connector 300 is still partially in an unfused state. At this time, the first mounting base 100 and the second mounting base 200 are still connected by the flexible connector 300 and cannot be released, which will cause the release function of the clamping release device to fail. In order to solve the above problem, the clamping release device of this embodiment also makes the following settings.

[0042] In this embodiment, the hot knife assembly 400 is movably arranged on the second installation base 200, and the flexible connector 300 is located on the moving path of the hot knife assembly 400. It should be understood that under such arrangement, the hot knife assembly 400 can move relative to the second installation base 200. Since the flexible connector 300 is fixedly connected to the first installation base 100 and the second installation base 200, that is, the relative position relationship between the flexible connector 300 and the second installation base 200 is determined, when the hot knife assembly 400 moves relative to the second installation base 200, the hot knife assembly 400 will also move relative to the flexible connector 300; since the flexible connector 300 is located on the moving path of the hot knife assembly 400, when the hot knife assembly 400 moves, it can move to contact with the flexible connector 300.

[0043] At the same time, the first end of the elastic member 500 of this embodiment is connected to the second mounting base 200, and the second end of the elastic member 500 is connected to the hot knife assembly 400, and the elastic member 500 drives the hot knife assembly 400 to abut against the flexible connector 300. It should be understood that the two ends of the elastic member 500 are respectively connected to the second mounting base 200 and the hot knife assembly 400, that is, the second mounting base 200 and the hot knife assembly 400 provide a mounting base for the elastic member 500, and based on the elastic characteristics of the elastic member 500 itself, when the elastic member 500 is deformed, it will drive the hot knife assembly 400, that is, it is equivalent to applying a certain pre-tightening effect to the hot knife assembly 400.

[0044] Specifically, when the elastic member 500 and the hot knife assembly 400 are located on the same side of the flexible connector 300, the elastic member 500 is compressed to store energy, and will produce a pushing effect on the hot knife assembly 400, so that the hot knife assembly 400 and the flexible connector 300 are abutted; when the elastic member 500 and the hot knife assembly 400 are located on different sides of the flexible connector 300, the elastic member 500 is stretched to store energy, and will produce a pulling effect on the hot knife assembly 400, so that the hot knife assembly 400 and the flexible connector 300 are abutted. Of course, no matter which of the above-mentioned implementation modes is used, during the process of the hot knife assembly 400 melting the flexible connector 300, the elastic member 500 will continuously push or pull the hot knife assembly 400, that is, after the hot knife assembly 400 melts the portion of the flexible connector 300 close to the side of the hot knife assembly 400, the hot knife assembly 400 will continue to abut against the unmelted portion of the flexible connector 300 until the hot knife assembly 400 completely melts the flexible connector 300, thereby ensuring that the first mounting base 100 and the second mounting base 200 are separated and released, thereby realizing the release function of the clamping release mechanism.

[0045] The present embodiment does not limit the specific configuration of the first mounting base 100 and the second mounting base 200, both of which may be plate-like structural members. The structure of the plate-like structural member is relatively simple, which can not only reduce the weight of the clamping release device, but also provide sufficient installation space on the plate surface; of course, the first mounting base 100 and the second mounting base 200 can also be set to a configuration that matches the connected components of the spacecraft to enhance the convenience of installation.

[0046] This embodiment also does not limit the type of the flexible connector 300. For example, it can be a cable, a rope, etc., which is usually made of a material with low heat resistance. In the case where the flexible connector 300 is a rope, the flexible connector 300 is usually selected as a polyethylene rope (such as a Dyneema rope), which is specifically made of polyethylene fiber and has good high crystallinity, stable chemical properties, and resistance to low temperature, water, moisture, chemical corrosion, and ultraviolet rays; of course, the flexible connector 300 can also be a cotton rope, etc.

[0047] It can be seen from the above description that in the compression and release device disclosed in the embodiment of the present invention, the flexible connector 300 connects the first mounting base 100 and the second mounting base 200 in series, and the first mounting base 100 and the second mounting base 200 can be installed on the connected components of the spacecraft, thereby realizing the compression and locking function; at the same time, the hot knife assembly 400 is an electric heating structure. When it is necessary to release the connected components of the spacecraft, the hot knife assembly 400 can be energized to melt the flexible connector 300, thereby realizing the release of the connected components; because the elastic member 500 drives the hot knife assembly 400 to abut against the flexible connector 300, that is, the elastic member 500 provides a certain pre-tightening effect for the hot knife assembly 400, so that the hot knife assembly 400 always maintains reliable contact with the flexible connector 300 in the process of gradually melting the flexible connector 300, thereby ensuring the smooth realization of the release function of the compression and release device.

[0048] Compared with the related art, the compression release device disclosed in the embodiment of the present invention is a non-pyrotechnic structure. When realizing its release function, the impact load is undoubtedly smaller and no explosion pollution will be generated. At the same time, the hot knife assembly 400 has a simple structure, which can undoubtedly simplify the structure of the entire device and effectively meet the lightweight requirements.

[0049] In this embodiment, there are many ways to move the hot knife assembly 400 on the second mounting base 200, for example, a sliding guide rail is provided on the second mounting base 200, and the hot knife assembly 400 can move on the sliding guide rail. In another specific implementation, a pre-tightening slider 600 can be provided between the first mounting base 100 and the second mounting base 200 of this embodiment, and the pre-tightening slider 600 is movably provided on the second mounting base 200; the hot knife assembly 400 is provided on the pre-tightening slider 600, and the second end of the elastic member 500 is connected to the hot knife assembly 400 through the pre-tightening slider 600.

[0050] Specifically, the preload slider 600 is the installation base of the hot knife assembly 400. The preload slider 600 can move relative to the second installation base 200. In this way, the preload slider 600 can drive the hot knife assembly 400 to move relative to the second installation base 200. Based on the elastic characteristics of the elastic member 500, when the elastic member 500 is deformed, it will drive the preload slider 600, and then the hot knife assembly 400 will be preloaded through the preload slider 600. It should be understood that based on the shape of the hot knife assembly 400, it is not convenient to stably connect with the elastic member 500, and it is easy to cause the hot knife assembly 400 to deflect during connection. The preload slider 600 can provide a relatively sufficient installation area for the elastic member 500, so that the elastic member 500 can be stably connected to the preload slider 600, so that the elastic member 500 can provide a reliable and preloaded effect in a preset direction for the hot knife assembly 400.

[0051] Furthermore, in the present embodiment, a first guide rod 210 and a second guide rod 220 may be spaced apart on the second mounting base 200, a preload slider 600 is slidably mounted on the first guide rod 210 and the second guide rod 220, the first guide rod 210 and the second guide rod 220 are arranged in parallel, and a flexible connector 300 is disposed between the first guide rod 210 and the second guide rod 220. It should be understood that, under such a configuration, the first guide rod 210 and the second guide rod 220 are the installation bases of the preload slider 600. When the preload slider 600 slides on the first guide rod 210 and the second guide rod 220, the movement of the hot knife assembly 400 relative to the second installation base 200 is realized; the first guide rod 210 and the second guide rod 220 are arranged in parallel, so the arrangement of the two is relatively regular, which is more convenient for setting on the second installation base 200; since there is usually a gap between the first guide rod 210 and the second guide rod 220, and the flexible connector 300 is arranged between the first guide rod 210 and the second guide rod 220, the gap between the first guide rod 210 and the second guide rod 220 is utilized by the flexible connector 300, which can undoubtedly improve the space utilization rate inside the clamping release device.

[0052] In combination with the above, the present embodiment does not limit the specific movement mode of the hot knife assembly 400 and the preload slider 600 on the second mounting base 200, and therefore the present embodiment does not limit the specific number of guide rods, and the guide rods may also be one, three, or other numbers.

[0053] Meanwhile, the present embodiment does not limit the specific type of the elastic member 500. Generally, the elastic member 500 can be a spring. In the embodiment where the preload slider 600 moves on the second mounting base 200 via the guide rod, the spring can be arranged on the guide rod. In this way, the guide rod can also play a guiding and restraining role on the elasticity, preventing the spring from bending when stressed and providing a rebound effect that deviates from the preset direction. Of course, the elastic member 500 can also be a structure such as foam, elastic rubber, etc.

[0054] In order to optimize the connection reliability between the pre-tightening slider 600 and the first guide rod 210 and the second guide rod 220, the pre-tightening slider 600 of this embodiment may include a connecting part 610, a first sliding arm 620 and a second sliding arm 630, the first sliding arm 620 and the second sliding arm 630 are both connected to the connecting part 610 at one end and slidably sleeved on the first guide rod 210 and the second guide rod 220 at the other end, the first sliding arm 620 and the second sliding arm 630 are arranged opposite to each other, and a accommodating space 640 is configured therebetween; the connecting part 610 is provided with a first avoidance hole 611, the first avoidance hole 611 is connected to the accommodating space 640, the flexible connector 300 can be arranged in the accommodating space 640 through the first avoidance hole 611, and the hot knife assembly 400 abuts against the flexible connector 300 in the accommodating space 640.

[0055] Specifically, under such a configuration, the pre-tensioning slider 600 can simultaneously slide and cooperate with the first guide rod 210 and the second guide rod 220 through the first sliding arm 620 and the second sliding arm 630, that is, the pre-tensioning slider 600 has two structures for sliding and cooperating with the first guide rod 210 and the second guide rod 220, which obviously increases the sliding contact area between the pre-tensioning slider 600 and the first guide rod 210 and the second guide rod 220, and undoubtedly improves the connection reliability and stability of the pre-tensioning slider 600 and the first guide rod 210 and the second guide rod 220.

[0056] At the same time, in this embodiment, in order to optimize the space utilization rate inside the compression release device, the connection part 610 is provided with a first avoidance hole 611, so that the flexible connector 300 can be arranged in the accommodation space 640 through the first avoidance hole 611. Compared with the embodiment in which the flexible connector 300 is arranged outside the preload slider 600, the accommodation space 640 between the first sliding arm 620 and the second sliding arm 630 can undoubtedly be utilized, which not only avoids the accommodation space 640 from being idle, but also facilitates the reduction of the size of other components outside the preload slider 600. Of course, since the flexible connector 300 is arranged in the accommodation space 640, the hot knife assembly 400 of this embodiment can abut against the flexible connector 300 in the accommodation space 640, so that it can ensure that the flexible connector 300 is smoothly melted when the hot knife assembly 400 is powered on.

[0057] In this embodiment, there may be multiple specific types of the hot knife assembly 400. For example, the hot knife assembly 400 includes a sleeve and a heating wire 420 embedded in the sleeve. The heating wire 420 can be heated and heated after being energized, and heat is transferred through the sleeve to fuse the flexible connector 300. In another specific implementation, the hot knife assembly 400 of this embodiment may include two carriers 410 and a heating wire 420. The two carriers 410 are both connected to the pre-tightening slider 600 and are arranged opposite to each other on the pre-tightening slider 600. The two ends of the heating wire 420 are respectively connected to the two carriers 410, and the heating wire 420 is in contact with the flexible connector 300. The heating wire 420 is electrically connected to the power supply device.

[0058] Specifically, in the present embodiment, the heating wire 420 is in direct contact with the flexible connector 300. When the heating wire 420 is powered on for heating, the energy of the heating wire 420 can be directly transferred to the flexible connector 300, so that excessive energy loss can be avoided in the process of the hot knife assembly 400 fusing the flexible connector 300, thereby improving the reliability and fusing efficiency of the hot knife assembly 400 fusing the flexible connector 300. Since the rigidity of the heating wire 420 itself is relatively low, it is easy to deform when it abuts against the flexible connector 300, so it needs to be in a tensioned state to reliably abut against the flexible connector 300 and smoothly fuse the flexible connector 300; in the present embodiment, the two ends of the heating wire 420 are respectively connected to two carriers 410, which are the installation bases of the heating wire 420. The two carriers 410 can tension the heating wire 420 by presetting the corresponding spacing, so that the heating wire can be reliably abutted against the flexible connector 300.

[0059] At the same time, since the structure of the carrier plate 410 is relatively sophisticated, the tension and setting position of the heating wire 420 can be conveniently adjusted by adjusting the relative positions of the two carrier plates 410 on the pre-tightening slider 600. In the embodiment in which the pre-tightening slider 600 includes a connecting portion 610, a first sliding arm 620 and a second sliding arm 630, the two ends of the carrier plate 410 can be respectively installed on the first sliding arm 620 and the second sliding arm 630. Compared with the embodiment in which only one end of the carrier plate 410 is installed, there are two supporting areas on the pre-tightening slider 600 to support the carrier plate 410, which is also conducive to improving the installation reliability of the carrier plate 410.

[0060] The heating wire 420 needs to be powered to work properly. In this embodiment, the power supply device is electrically connected to the heating wire 420 to supply power. The power supply device can be a compression release device or a power module on a spacecraft.

[0061] Usually, the power supply device needs to be connected to the heating wire 420 through a cable, but the heating wire 420 will move between the first mounting base 100 and the second mounting base 200, and the cable will interfere with other components in this space. Based on this, the carrier 410 of this embodiment may include a first main body 411 and a conductive part 412, the first main body 411 is an insulating structural member, and the conductive part 412 is arranged on the first main body 411. The two ends of the heating wire 420 are respectively connected to the conductive parts 412 on the two carriers 410, and are electrically connected to the power supply device through the conductive part 412.

[0062] Among them, the first main body part 411 is the main part of the carrier 410, which provides an installation basis for the conductive part 412; since the first main body part 411 is an insulating structural part, most areas of the carrier 410 have insulating properties, which not only reduces the dissipation of energy provided by the power supply device, but also avoids the risk of internal short circuit and electric spark generation of the clamping release device (compared with the electrical connection method directly using a copper nose in the related technology), which can undoubtedly reduce the working energy consumption of the hot knife assembly 400 and improve safety.

[0063] The conductive part 412 serves to electrically connect the heating wire 420 and the power supply device, and can smoothly realize the power supply to the heating wire 420 on the carrier 410. The present embodiment does not limit the specific configuration of the conductive part 412. The conductive part 412 can be a conductive coating on the surface of one side of the carrier 410. The conductive coating generally includes a metal conductive layer, a conductive tape or other special coating materials formed by various coating methods, and can specifically be a copper foil layer, a silver foil layer, an aluminum foil layer, etc. In the case where the conductive part 412 is a conductive coating, the heating wire 420 or the cable of the power supply device needs to pass through the carrier 410 to be electrically connected to the conductive coating.

[0064] Alternatively, the conductive portion 412 may be directly configured as a conductive material block penetrating the carrier board 410 , so that the heating wire 420 and the cable of the power supply device can be conveniently electrically connected to the conductive portion 412 , thereby simplifying the processing procedure.

[0065] The present embodiment does not limit the specific type of the heating wire 420, which may generally be a nickel-chromium alloy wire, and of course, may also be other types such as an iron-chromium-aluminum alloy wire; when the heating wire 420 is a nickel-chromium alloy wire, it may specifically be a Cr20Ni80 heating alloy wire. This type of heating wire 420 has good insulation and temperature resistance, can adapt to harsh space environments, has good shock resistance and corrosion resistance, stable high-temperature mechanical properties, will not produce brittle fractures during long-term use, and can adapt to the harsh mechanical environments of the flight and landing stages of an aircraft as well as the space environment during operation.

[0066] In order to simplify the installation process of the flexible connector 300 on the first mounting base 100 and the second mounting base 200 to improve the installation efficiency, the first mounting base 100 and the second mounting base 200 of the present embodiment can both be provided with a through mounting hole 700, and the flexible connector 300 can be passed through the first mounting base 100 and the second mounting base 200 through the mounting hole 700, and a tightening joint 800 is sleeved on the flexible connector 300, and the tightening joint 800 can be assembled in the mounting hole 700, and the hole wall of the mounting hole 700 abuts against the tightening joint 800, and the tightening joint 800 is pressed circumferentially onto the flexible connector 300.

[0067] It should be understood that in the related art, the flexible connector 300 is usually clamped in the first installation base 100 and the second installation base 200, which not only makes the installation process more complicated, but also the clamping structure easily damages the flexible connector 300, which may cause the flexible connector 300 to break over a long period of time, thereby making it difficult for the compression release device to normally perform the compression locking function. In this embodiment, the flexible connector 300 can be fixedly installed on the first installation base 100 and the second installation base 200 by the tightening joint 800.

[0068] During the specific installation, the flexible connector 300 can be first inserted into the mounting holes 700 of the first mounting base 100 and the second mounting base 200, and then the tightening joint 800 can be sleeved from the end of the flexible connector 300, and the tightening joint 800 can be slid into the mounting holes 700 of the first mounting base 100 and the second mounting base 200. In this way, the installation process of the flexible connector 300 in this embodiment is extremely simple, which can undoubtedly improve the installation efficiency.

[0069] When the tightening joint 800 is assembled in the mounting hole 700, it will be pressed by the hole wall of the mounting hole 700. At this time, the tightening joint 800 will be deformed and pressed against the flexible connector 300 in the circumferential direction, thereby achieving a tightening effect on the flexible connector 300. Generally, the deformation of the tightening joint 800 can be achieved through the interference fit relationship between its outer wall and the inner wall of the mounting hole 700. When the tightening joint 800 tightens the flexible connector 300, the inner wall of the tightening joint 800 is pressed and fitted on the outer peripheral surface of the flexible connector 300 in the circumferential direction, and will not damage the flexible connector 300 like the clamping structure, which can ensure that the flexible connector 300 has a long service life, thereby avoiding the problem of the flexible connector 300 breaking before the compression release device implements the release function.

[0070] It should be noted that the tightening joint 800 needs to be deformed to apply a tightening effect to the flexible connector 300. Based on this, in order to facilitate the deformation of the tightening joint 800, the tightening joint 800 of this embodiment may include a second main body 810 and a plurality of elastic claws 820. The first end of the elastic claw 820 is a fixed end and is connected to the second main body 810. The second end of the elastic claw 820 is a free end. There is a movable gap between two adjacent elastic claws 820. The second main body 810 is provided with a second avoidance hole 811, and the flexible connector 300 can be passed through the second avoidance hole 811 in the tightening joint 800. The mounting hole 700 is a conical hole. When the tightening joint 800 is assembled in the mounting hole 700, the hole wall of the mounting hole 700 abuts against the plurality of elastic claws 820 and tightens the plurality of elastic claws 820 against the flexible connector 300.

[0071] It should be understood that the second avoidance hole 811 can be used to penetrate the flexible connector 300. When the flexible connector 300 is penetrated in the tightening joint 800 through the second avoidance hole 811, the flexible connector 300 is penetrated in the space surrounded by the elastic claw 820. The second main body 810 is the main body of the tightening joint 800, which provides a mounting base for the elastic claw 820. Since the elastic claw 820 is an independent individual and there is no connection and matching relationship between the elastic claws 820, when the elastic claw 820 is elastically deformed by contacting the inner wall of the mounting hole 700, the movable gap provides a deformation space for it, so the elastic claw 820 is more likely to be elastically deformed.

[0072] Under such a setting, since the mounting opening is a tapered hole, when the tightening joint 800 is assembled in the mounting hole 700, the elastic claw 820 will gradually be squeezed by the tapered surface of the mounting hole 700 (i.e., the inner wall of the mounting hole 700) and produce elastic deformation until the tightening joint 800 is installed in place. The tapered surface of the mounting hole 700 will press the elastic claw 820 and press it against the outer peripheral surface of the flexible connector 300, thereby allowing the flexible connector 300 to be reliably fixed on the first mounting base 100 and the second mounting base 200.

[0073] This embodiment does not limit the specific shape of the elastic claw 820. For example, the elastic claw 820 can be a straight structure. However, when the elastic claw 820 is a completely straight structure, it is difficult to deform when it is matched with the mounting hole 700, which will undoubtedly increase the difficulty of assembling the tightening joint 800. In another specific embodiment, the elastic claw 820 of this embodiment can include a straight section 821 and a tightening section 822. The two ends of the straight section 821 are respectively connected to the second main body 810 and the tightening section 822. The tightening section 822 is inclined relative to the straight section 821 and is inclined toward the inside of the tightening joint 800. When the tightening joint 800 is assembled with the mounting hole 700, the hole wall of the mounting hole 700 abuts against the tightening section 822, and the tightening section 822 is pressed against the flexible connector 300.

[0074] Under such a configuration, since the tightening section 822 is inclined toward the tightening joint 800, the tightening section 822 matches the conical surface of the mounting hole 700. When the tightening joint 800 is assembled in the mounting hole 700, the tightening joint 800 can be more easily inserted into the mounting hole 700 based on the tightening section 822. When the tightening joint 800 is installed in place, the conical surface of the mounting hole 700 exerts a certain extrusion effect on the tightening section 822, which can cause the tightening section 822 to produce elastic deformation, and press the tightening section 822 and press it against the outer peripheral surface of the flexible connector 300, thereby allowing the flexible connector 300 to be reliably fixed on the first mounting base 100 and the second mounting base 200.

[0075] In order to prevent the tightening joint 800 from loosening after long-term use and falling out of the mounting hole 700 of the first mounting base 100 and the second mounting base 200, the first mounting base 100 and the second mounting base 200 can be provided with a clamping block in the area corresponding to the mounting hole 700, and the flexible connecting member 300 can be passed through the clamping block, and the clamping block is arranged opposite to the tightening joint 800 in the mounting hole 700, and the tightening joint 800 can be limited in the mounting hole 700.

[0076] Based on the aforementioned clamping and releasing device, an embodiment of the present invention further discloses a spacecraft, which includes a first component, a second component and the aforementioned clamping and releasing device, wherein the clamping and releasing device is connected to the first component via a first mounting base 100 and is connected to the second component via a second mounting base 200.

[0077] It should be understood that the first component is the connection base of the first mounting base 100, and the second component is the connection base of the second mounting base 200. The present embodiment does not limit the specific types of the first component and the second component, which should be determined according to the specific purpose of the compression release device. The compression release device of the present embodiment is used to realize the deployment of the solar wing. At this time, the first component and the second component should be the shell of the spacecraft associated with the solar wing.

[0078] Likewise, this embodiment does not limit the specific type of the spacecraft, which may be an artificial earth satellite, a space probe, a space shuttle, etc.

[0079] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0080] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A compression release device, characterized in that: It comprises a first installation base (100), a second installation base (200), a flexible connecting member (300), a hot knife assembly (400) and an elastic member (500); The first installation base (100) and the second installation base (200) are respectively fixedly connected to the flexible connector (300); The hot knife assembly (400) is located between the first mounting base (100) and the second mounting base (200), and is movably arranged on the second mounting base (200), and the flexible connecting member (300) is located on the moving path of the hot knife assembly (400); The first end of the elastic member (500) is connected to the second installation base (200), the second end of the elastic member (500) is connected to the hot knife assembly (400), and the elastic member (500) drives the hot knife assembly (400) to abut against the flexible connecting member (300); The hot knife assembly (400) is an electric heating structure, and the hot knife assembly (400) fuses the flexible connection member (300) when power is supplied; A preload slider (600) is provided between the first mounting base (100) and the second mounting base (200), and the preload slider (600) is movably provided on the second mounting base (200); the hot knife assembly (400) is provided on the preload slider (600), and the second end of the elastic member (500) is connected to the hot knife assembly (400) via the preload slider (600); A first guide rod (210) and a second guide rod (220) are arranged on the second installation base (200) at intervals, the preload slider (600) is slidably mounted on the first guide rod (210) and the second guide rod (220), the first guide rod (210) and the second guide rod (220) are arranged in parallel, and the flexible connector (300) is arranged between the first guide rod (210) and the second guide rod (220); The preload slider (600) comprises a connecting portion (610), a first sliding arm (620) and a second sliding arm (630); one end of each of the first sliding arm (620) and the second sliding arm (630) is connected to the connecting portion (610), and the other end is slidably sleeved on the first guide rod (210) and the second guide rod (220); the first sliding arm (620) and the second sliding arm (630) are arranged opposite to each other, and an accommodating space (640) is arranged between the two. The connecting portion (610) is provided with a first avoidance hole (611), the first avoidance hole (611) is communicated with the accommodating space (640), the flexible connecting member (300) can be arranged in the accommodating space (640) through the first avoidance hole (611), and the hot knife assembly (400) abuts against the flexible connecting member (300) in the accommodating space (640); The hot knife assembly (400) comprises two carrier plates (410) and a heating wire (420); the two carrier plates (410) are both connected to the pre-tightening slider (600) and are arranged opposite to each other on the pre-tightening slider (600); the two ends of the heating wire (420) are respectively connected to the two carrier plates (410), and the heating wire (420) is in abutment with the flexible connector (300); the heating wire (420) is electrically connected to a power supply device.

2. The compression release device according to claim 1, characterized in that: The carrier (410) comprises a first main body portion (411) and a conductive portion (412), wherein the first main body portion (411) is an insulating structural component, and the conductive portion (412) is arranged on the first main body portion (411), and the two ends of the heating wire (420) are respectively connected to the conductive portions (412) on the two carriers (410), and are electrically connected to the power supply device through the conductive portion (412).

3. The compression release device according to claim 1, characterized in that: The first mounting base (100) and the second mounting base (200) are both provided with a through mounting hole (700), and the flexible connector (300) can be inserted into the first mounting base (100) and the second mounting base (200) through the mounting hole (700), and a tightening joint (800) is sleeved on the flexible connector (300), and the tightening joint (800) can be assembled in the mounting hole (700), and the hole wall of the mounting hole (700) abuts against the tightening joint (800), and the tightening joint (800) is pressed circumferentially onto the flexible connector (300).

4. The compression release device according to claim 3, characterized in that: The tightening joint (800) comprises a second main body (810) and a plurality of elastic claws (820), wherein the first end of the elastic claw (820) is a fixed end and is connected to the second main body (810), and the second end of the elastic claw (820) is a free end, and a movable gap is provided between two adjacent elastic claws (820); the second main body (810) is provided with a second avoidance hole (811), and the flexible connector (300) can be passed through the second avoidance hole (811) and arranged in the tightening joint (800); The mounting hole (700) is a tapered hole. When the tightening joint (800) is assembled to the mounting hole (700), the hole wall of the mounting hole (700) abuts against the multiple elastic claws (820), and the multiple elastic claws (820) are pressed tightly against the flexible connector (300).

5. The compression release device according to claim 4, characterized in that: The elastic claw (820) includes a straight section (821) and a tightening section (822), and the two ends of the straight section (821) are respectively connected to the second main body (810) and the tightening section (822), and the tightening section (822) is inclined relative to the straight section (821) and inclined toward the tightening joint (800); when the tightening joint (800) is assembled in the mounting hole (700), the hole wall of the mounting hole (700) abuts against the tightening section (822), and the tightening section (822) is pressed against the flexible connector (300).

6. A spacecraft, characterized in that: The invention comprises a first component, a second component and a compression release device as claimed in any one of claims 1 to 5, wherein the compression release device is connected to the first component via the first mounting base (100) and is connected to the second component via the second mounting base (200).

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