Exhaust valve of high-altitude balloon and high-altitude balloon

Abstract

The invention provides an exhaust valve of a high-altitude balloon and the high-altitude balloon. The exhaust valve of the high-altitude balloon comprises a cylinder body, a valve cover, a coil, a magnetic part and an elastic part, the first end of the cylinder body is used for being connected with a balloon body of the high-altitude balloon, the interior of the cylinder body is communicated with the interior of the balloon body, and an exhaust port is formed in the second end of the cylinder body; the valve cover is arranged in the cylinder body and is movably connected with the second end of the cylinder body so as to block or open the exhaust port; the coil and the magnetic part are both arranged in the cylinder body; the magnetic piece is connected with the valve cover; the two ends of the elastic assembly are connected with the first end of the barrel and the magnetic piece correspondingly, and the elastic assembly is in a pre-compressed state; when the coil is not powered on, the exhaust port is closed, and when the coil is powered on, the exhaust port is opened. According to the exhaust valve of the high-altitude balloon, opening and closing of the valve are achieved through the electromagnetic principle, the structure of a driving mode is simplified, the overall weight of the exhaust valve is reduced, energy consumption is reduced, and the task execution time of the high-altitude balloon is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerostat, in particular to an exhaust valve of high altitude balloon and high altitude balloon. BACKGROUND

[0002] With the continuous development of near space research, aerostats (including airships, high altitude balloons, tethered balloons, etc.) using lifting gas as the main source of lift are increasingly becoming an important carrier and platform in the field of aerospace. Due to the large diurnal temperature difference in near space, solar radiation and strong ultraviolet radiation, the capsule loaded with lifting gas may be over-pressured for a certain period of time under the condition of solar radiation, and when the internal overpressure exceeds the limit it can withstand, the capsule may be at risk of overpressure burst. To prevent this from happening, the internal gas needs to be vented before the capsule is over-pressured. The successful venting and sealing of the exhaust valve are crucial to the overpressure protection of the capsule.

[0003] The existing exhaust valves mainly have the following structures: one is composed of a motor driving system, a screw transmission mechanism, a valve cover assembly and a valve body structure, which drives the valve cover to move to realize the opening and closing control of the exhaust passage; one is a ball valve structure, which is directly coupled with a servo motor through a gear transmission mechanism to realize accurate control of the volume of the gas inside the balloon; and the other is a linear motor linear motion directly driving valve rod to realize the opening and closing of the exhaust passage.

[0004] The above-mentioned exhaust valve structures basically rely on motor, solenoid and other driving modules to realize opening and closing. Such driving mode not only has complex structure, but also significantly increases energy consumption in long-term flight mission, shortening the mission time of high altitude balloon. SUMMARY

[0005] The present application provides an exhaust valve of high altitude balloon and high altitude balloon to solve the defects of complex structure and large energy consumption of the driving mode of the exhaust valve in the prior art, realize the reduction of energy consumption of high altitude balloon, and prolong the mission time.

[0006] The application provides a high altitude balloon exhaust valve, comprising: a cylinder body, a first end of the cylinder body is used for being connected with a balloon body of a high altitude balloon, an inside of the cylinder body is communicated with an inside of the balloon body, and a second end of the cylinder body is provided with an exhaust port; a valve cover is arranged in the cylinder body and is movably connected with the second end of the cylinder body to block or open the exhaust port; a coil is arranged in the cylinder body; a magnetic piece is arranged in the cylinder body and is connected with the valve cover; an elastic assembly is connected with the first end of the cylinder body and the magnetic piece respectively, and the elastic assembly is in a pre-compression state; when the coil is not powered, the valve cover is connected with the second end of the cylinder body, and the exhaust port is closed; when the coil is powered, the magnetic piece drives the valve cover to move away from the exhaust port, and the exhaust port is opened.

[0007] The high altitude balloon exhaust valve provided by the application further comprises a core, the core is arranged in the coil, and the core has a cavity, which is communicated with the inside of the balloon body.

[0008] The high altitude balloon exhaust valve provided by the application, wherein the magnetic piece comprises: a first magnet; and a second magnet, two ends of the second magnet are connected with the first magnet and the valve cover respectively, and the diameter of the second magnet is smaller than that of the first magnet.

[0009] The high altitude balloon exhaust valve provided by the application further comprises a cover body, the cover body comprises: a cover plate, the cover plate is arranged at the first end of the cylinder body and is used for being connected with the balloon body, the cover plate is provided with a plurality of air inlets, and the inside of the balloon body is communicated with the inside of the cylinder body through the air inlets; a guide sleeve is connected with the cover plate, and part of the elastic assembly is arranged in the guide sleeve.

[0010] The high altitude balloon exhaust valve provided by the application, wherein the elastic assembly comprises: a valve rod, connected with the magnetic piece; a first elastic piece, arranged around the valve rod; a limiting sleeve, sleeved outside the valve rod and connected with the magnetic piece, and the limiting sleeve is connected with the first elastic piece; the valve rod is arranged in the guide sleeve, the guide sleeve comprises a first sleeve body and a second sleeve body connected with each other, the second sleeve body is connected with the cover plate, and the diameter of the second sleeve body is smaller than that of the first sleeve body; when the coil is not powered, part of the first elastic piece is arranged in the first sleeve body, and the first elastic piece is in a compression state.

[0011] The elastic assembly further comprises a second elastic piece, a surface of the cover plate towards the inside of the cylinder is provided with a groove, an opening end of the groove is connected with the guide sleeve, and the second elastic piece is arranged in the groove; when the coil is not electrified, the valve rod is separated from the second elastic piece; and when the coil is electrified, the valve rod abuts against the second elastic piece.

[0012] The air release valve of the high altitude air balloon further comprises a sleeve, which is sleeved between the coil and the iron core.

[0013] The air release valve of the high altitude air balloon further comprises a sleeve, which is sleeved between the coil and the iron core.

[0014] The air release valve of the high altitude air balloon further comprises a sleeve, which is sleeved between the coil and the iron core.

[0015] The air release valve of the high altitude air balloon further comprises a sleeve, which is sleeved between the coil and the iron core.

[0016] The air release valve of the high altitude air balloon further comprises a sleeve, which is sleeved between the coil and the iron core. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 is a sectional view of the air release valve of the high altitude air balloon provided by the present application.

[0019] Figure 2 is Figure 1 is a structural schematic view of the cover plate, the guide sleeve and the valve cover shown in the figure.

[0020] REFERENCE NUMERALS: 10. Cylinder body; 11. Exhaust port; 12. Annular groove; 20. Valve cover; 21. Sealing ring; 30. Coil; 31. Magnetic component; 32. Iron core; 40. First elastic component; 50. Valve stem; 60. Second elastic component; 70. Limiting sleeve; 80. Cover body; 81. Cover plate; 82. Guide sleeve; 90. Sleeve; 311. First magnet; 312. Second magnet; 811. Air inlet; 821. First sleeve; 822. Second sleeve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] The following is combined Figure 1 and Figure 2 The present invention describes an exhaust valve for a high-altitude balloon and a high-altitude balloon.

[0023] like Figure 1 As shown, in an embodiment of the present invention, the exhaust valve of the high-altitude balloon includes: a cylinder 10, a valve cover 20, a coil 30, a magnetic element 31, and an elastic component. The first end of the cylinder 10 is connected to the balloon's casing, and the interior of the cylinder 10 communicates with the interior of the casing. The second end of the cylinder 10 has an exhaust port 11. The valve cover 20 is disposed inside the cylinder 10 and is movably connected to the second end of the cylinder 10 to block or open the exhaust port 11. The coil 30 and the magnetic element 31 are both disposed inside the cylinder 10. The magnetic element 31 is connected to the valve cover 20, and both ends of the elastic component are connected to the first end of the cylinder 10 and the magnetic element 31, respectively. The elastic component is in a pre-compressed state.

[0024] Specifically, in the embodiment, the first end of the cylinder 10 can be firmly connected with the ball handle of the capsule by a cable tie, and the second end of the cylinder 10 can be connected with other task load platforms. The first end of the cylinder 10 is provided with an air inlet, and the gas in the capsule can enter the inside of the cylinder 10 through the air inlet. The second end of the cylinder 10 is provided with an air outlet 11, and the gas in the cylinder 10 can be discharged through the air outlet 11. When the air is not needed to be discharged, the valve cover 20 is connected with the second end of the cylinder 10 to block the air outlet 11; when the air is needed to be discharged, the valve cover 20 is separated from the second end of the cylinder 10 to make the air outlet 11 in an open state. Specifically, when the air is not needed to be discharged, the coil 30 is not powered, the magnetic member 31 does not move, and the elastic assembly uses the pre-pressing force to abut the valve cover 20 and the second end of the cylinder 10, so that the cylinder 10 is in a sealed state; when the air is needed to be discharged, the coil 30 is powered, the coil 30 generates a magnetic field after being powered, the magnetic member 31 moves further to compress the elastic assembly in the direction away from the air outlet 11 under the action of the magnetic force, thereby driving the valve cover 20 to move away from the air outlet 11, and the gas in the capsule can be discharged through the air outlet 11. When the air is not needed to be continuously discharged, the coil 30 is powered off, and the valve cover 20 is abutted with the second end of the cylinder 10 under the action of the elastic assembly to block the air outlet 11.

[0025] Optionally, in the embodiment, the cylinder 10 can be a structure with bottoms at both ends, and the two bottoms are respectively provided with the air inlet and the air outlet 11. In the embodiment, the elastic assembly can be a structure of only the elastic member, or a combination of the elastic member and other components.

[0026] In the embodiment, the coil 30 can be fixed to the inner wall of the cylinder 10.

[0027] The air discharge valve of the high altitude balloon provided by the embodiment simplifies the structure of the driving mode, reduces the overall weight of the air discharge valve, reduces the energy consumption, and prolongs the time length of the high altitude balloon when performing a task.

[0028] As shown in Figure 1 and Figure 2 In the embodiment of the application, the surface of the valve cover 20 facing the second end of the cylinder 10 is provided with a sealing ring 21, and the surface of the second end of the cylinder 10 facing the valve cover 20 is provided with an annular groove 12, and the annular groove 12 is located outside the air outlet 11. When the coil 30 is not powered, the sealing ring 21 is embedded in the annular groove 12 to realize the sealing connection between the valve cover 20 and the cylinder 10.

[0029] As shown in Figure 1As shown, in an embodiment of the present invention, the exhaust valve of the high-altitude balloon further includes an iron core 32, which is disposed within the coil 30. The iron core 32 has a cavity that communicates with the interior of the balloon body to form an airflow channel. In this embodiment, when the coil 30 is energized, an upward magnetic attraction is generated between the iron core 32 and the magnetic component 31. When the magnetic component 31 moves upward, it drives the valve cover 20 to move upward, thereby separating the valve cover 20 from the exhaust port 11. The gas inside the balloon body can then be discharged through the cavity and the exhaust port 11 to reduce the pressure inside the balloon body. In this embodiment, the iron core 32 has a ring structure, and its internal cavity can also serve as an airflow channel, thereby reducing the additional structure required for independent channels. This allows the driving and exhaust functions to be realized in the same component, significantly reducing the volume and weight of the exhaust valve, reducing unnecessary redundant structures, and achieving lightweight design while ensuring performance. Meanwhile, by setting the iron core 32, a stronger electromagnetic force can be obtained under the same power conditions compared to simple electromagnetic force drive, thereby improving the response speed and opening and closing efficiency of the exhaust valve, effectively reducing energy consumption, and extending the duration of high-altitude balloon missions.

[0030] Optionally, in an embodiment of the present invention, the magnetic element 31 is a permanent magnet.

[0031] like Figure 1 As shown, in an embodiment of the present invention, the magnetic component 31 includes a first magnet 311 and a second magnet 312. The first magnet 311 is connected to the second magnet 312, and the diameter of the first magnet 311 is larger than the diameter of the second magnet 312. The second magnet 312 is connected to the valve cover 20. In this embodiment, by setting the magnetic component 31 to a stepped structure, compared with a single-shaped magnetic component, the stepped structure can significantly enhance the magnetic field strength and optimize the magnetic effect with only a slight increase in mass, thereby improving the driving performance. This design can improve the opening and closing capability of the exhaust valve under limited mass constraints, further reduce energy consumption, and achieve the design goals of lightweight and high efficiency of the exhaust valve.

[0032] like Figure 1 and Figure 2 As shown, in an embodiment of the present invention, the exhaust valve of the high-altitude balloon further includes a cover body 80, which includes a cover plate 81 and a guide sleeve 82. The cover plate 81 is disposed at the first end of the cylinder 10 and is used to connect with the bladder. The cover plate 81 is provided with a plurality of air inlets 811, and the inside of the bladder communicates with the inside of the cylinder 10 through the air inlets 811.

[0033] Specifically, in the embodiment, the first end of the cylinder 10 is not provided with a bottom, the cover plate 81 is embedded in the first end of the cylinder 10 and connected with the cylinder 10, and the cover plate 81 is configured as a bottom of the cylinder 10. The cover plate 81 is in transition fit with the cylinder 10 to facilitate disassembly. The cover plate 81 is provided with a plurality of air inlets 811 to communicate the inside of the capsule with the cavity of the core 32. The guide sleeve 82 is connected with the cover plate 81, and part of the elastic assembly is arranged in the guide sleeve 82 to guide the elastic assembly when the magnetic member 31 moves up and down.

[0034] As shown in Figure 1 the high-altitude balloon exhaust valve further comprises a first elastic member 40, a valve rod 50 and a limiting sleeve 70. The valve rod 50 is connected with the magnetic member 31, and the first elastic member 40 is arranged around the valve rod 50. The limiting sleeve 70 is sleeved outside the valve rod 50 and connected with the magnetic member 31, and the limiting sleeve 70 is connected with the first elastic member 40. The valve rod 50 is arranged in the guide sleeve 82, one end of the guide sleeve 82 is connected with the cover plate 81, and the guide sleeve 82 is used for guiding the movement of the first elastic member 40 and the valve rod 50.

[0035] Specifically, in the embodiment of the application, the guide sleeve 82 comprises a connected first sleeve body 821 and second sleeve body 822, and the second sleeve body 822 is connected with the cover plate 81, wherein the diameter of the first sleeve body 821 is larger than that of the second sleeve body 822, and the valve rod 50 is arranged in the first sleeve body 821 and the second sleeve body 822. When the coil 30 is not electrified and the exhaust valve is in a closed state, part of the first elastic member 40 is located in the first sleeve body 821, the first elastic member 40 is in a pre-compressed state, and the first elastic member 40 uses the pre-compression force to tightly abut the valve cover 20 and the second end of the cylinder 10 to realize the sealed connection of the valve cover 20 and the cylinder 10. After the coil 30 is electrified, the magnetic member 31 drives the valve cover 20 to move away from the exhaust port 11, the first elastic member 40 is further compressed, and when the first elastic member 40 is completely compressed, the valve cover 20 is separated from the exhaust port 11, and the exhaust port 11 starts to exhaust. When exhaust is not needed, the coil 30 is de-energized, the magnetic attraction force of the magnetic member 31 disappears, and the valve cover 20 is reset under the elastic force of the first elastic member 40 to block the exhaust port 11.

[0036] Optionally, in the embodiment of the application, the first elastic member 40 can be sleeved outside the valve rod 50, or a plurality of first elastic members 40 can be arranged around the valve rod 50. In the embodiment, the second sleeve body 822 is in interference fit with the valve rod 50 to avoid the magnetic member 31 from sliding in the left-right direction when moving up and down, and the first sleeve body 821 is used for guiding the movement of the first elastic member 40.

[0037] Furthermore, in an embodiment of the present invention, the elastic component further includes a second elastic element 60. A groove is provided on the surface of the cover plate 81 facing the interior of the cylinder 10, and the opening end of the groove is connected to the guide sleeve 82. The second elastic element 60 is disposed within the groove. When the coil 30 is not energized, the valve stem 50 is separated from the second elastic element 60. When the coil 30 is energized, and the magnetic element 31 drives the valve stem 50 to move upward, the valve stem 50 abuts against the second elastic element 60. The second elastic element 60 serves to buffer the upward movement of the valve stem 50, thereby reducing the speed of the valve stem 50's upward movement.

[0038] In the embodiments of the present invention, the guide sleeve 82, the iron core 32, the sleeve 90, the coil 30 and the cylinder 10 are sequentially sleeved on the valve stem 50, which is a one-axis fit with multiple holes. Therefore, the fit between the groove of the cover plate 81, the guide sleeve 82, the magnetic component 31 and the valve stem 50 is based on the basic axis fit principle.

[0039] like Figure 1 As shown, in an embodiment of the present invention, the exhaust valve of the high-altitude balloon further includes a sleeve 90, which is sleeved between the coil 30 and the iron core 32. In this embodiment, the sleeve 90 is a cylindrical component with outwardly protruding circular flanges at both ends. The cover plate 81 is disposed on one of the circular flanges, and the coil 30 is sleeved outside the cylindrical component, with both ends of the coil 30 abutting against the two circular flanges respectively.

[0040] When the exhaust valve provided in this embodiment of the invention is applied to a latex balloon, the limited load-bearing capacity of the latex balloon itself means that using a motor or solenoid as the drive mechanism significantly increases the energy consumption of the latex balloon and reduces its execution time. However, by using the exhaust valve provided in this embodiment, the drive structure is simplified, reducing the volume and weight of the exhaust valve and lowering energy consumption. Furthermore, to further achieve lightweighting of the exhaust valve, in this embodiment, the cylinder 10, valve cover 20, valve stem 50, limiting sleeve 70, cover 80, and sleeve 90 can all be made of lightweight materials, such as nylon. Nylon maintains high mechanical strength even at low temperatures, and its density is much lower than that of common metal materials. Compared to steel and aluminum, nylon not only meets the structural strength requirements of the exhaust valve in high-altitude environments but also significantly reduces the overall weight. Combined with nylon screws and a lightweight spring design, the total weight of the exhaust valve can be controlled below 1 kg, providing strong protection for the limited load-bearing capacity of the latex balloon.

[0041] This invention also provides a high-altitude balloon, including a capsule and an exhaust valve. The capsule and the exhaust valve are internally connected. When the air pressure inside the capsule exceeds the allowable pressure, the exhaust valve opens to release some of the gas inside the capsule; when the air pressure inside the capsule returns to normal, the exhaust valve closes. Optionally, in this embodiment, the high-altitude balloon can be a latex balloon.

[0042] The high altitude balloon provided by the embodiment of the present application sets an exhaust valve, uses electromagnetic principle to realize opening and closing of the valve, simplifies the structure of the driving mode, reduces the overall weight of the exhaust valve, reduces energy consumption, and prolongs the time length of the high altitude balloon during task execution.

[0043] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An exhaust valve for a high altitude balloon, characterized by, The utility model relates to a high altitude balloon exhaust valve, comprising: a barrel, a first end of the barrel is used for connecting with a capsule of a high altitude balloon, an inside of the barrel communicates with an inside of the capsule, a second end of the barrel is provided with an exhaust port; a valve cover, the valve cover is arranged in the barrel and movably connected with the second end of the barrel to block or open the exhaust port; a coil, the coil is arranged in the barrel; a magnetic piece, the magnetic piece is arranged in the barrel and connected with the valve cover; a resilient assembly, two ends of the resilient assembly are respectively connected with the first end of the barrel and the magnetic piece, and the resilient assembly is in a pre-compressed state; when the coil is not powered, the valve cover is connected with the second end of the barrel, and the exhaust port is closed; when the coil is powered, the magnetic piece drives the valve cover to move away from the exhaust port, and the exhaust port is opened.

2. The vent valve for a high altitude balloon of claim 1, wherein, Further comprising a core, the core is arranged in the coil, the core has a cavity, and the cavity communicates with the inside of the capsule.

3. The vent valve for a high altitude balloon of claim 1, wherein, The magnetic piece comprises: a first magnet; a second magnet, two ends of the second magnet are respectively connected with the first magnet and the valve cover, and the diameter of the second magnet is smaller than the diameter of the first magnet.

4. The vent valve for a high altitude balloon of claim 1, wherein, Further comprising a cover, the cover comprises: a cover plate, the cover plate is arranged at the first end of the barrel, the cover plate is used for connecting with the capsule, the cover plate is provided with a plurality of air inlets, and the inside of the capsule communicates with the inside of the barrel through the air inlets; a guide sleeve, the guide sleeve is connected with the cover plate, and part of the resilient assembly is arranged in the guide sleeve.

5. The vent valve for a high altitude balloon of claim 4, wherein, The resilient assembly comprises: a valve rod, the valve rod is connected with the magnetic piece; a first elastic piece, the first elastic piece is arranged around the valve rod; a limiting sleeve, the limiting sleeve is sleeved outside the valve rod and connected with the magnetic piece, and the limiting sleeve is connected with the first elastic piece; the valve rod is arranged in the guide sleeve, the guide sleeve comprises a first sleeve body and a second sleeve body connected with each other, the second sleeve body is connected with the cover plate, the diameter of the second sleeve body is smaller than the diameter of the first sleeve body, and part of the first elastic piece is arranged in the first sleeve body when the coil is not powered, and the first elastic piece is in a compressed state.

6. The vent valve for a high altitude balloon of claim 5, wherein, The resilient assembly further comprises a second elastic piece, a surface of the cover plate towards the inside of the barrel is provided with a groove, an opening end of the groove is connected with the guide sleeve, and the second elastic piece is arranged in the groove; the valve rod is separated from the second elastic piece when the coil is not powered, and the valve rod abuts against the second elastic piece when the coil is powered.

7. The vent valve for a high altitude balloon of claim 2, wherein, Further comprising a sleeve, the sleeve is sleeved between the coil and the core.

8. The vent valve for a high altitude balloon of claim 5, wherein, The barrel, the valve cover, the valve rod, the cover and the limiting sleeve are all made of lightweight materials.

9. The vent valve for a high altitude balloon of claim 1, wherein, A sealing ring is arranged on a surface of the valve cover towards the second end of the barrel, an annular groove is arranged on a surface of the second end of the barrel towards the valve cover, and the annular groove is located outside the exhaust port; the sealing ring is embedded in the annular groove when the coil is not powered.

10. A high altitude balloon characterized by, The utility model relates to a high altitude balloon exhaust valve, comprising: a capsule; The exhaust valve of any one of claims 1-9, an interior of the exhaust valve is in communication with an interior of the bladder.

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