CN114673641A - Ion propulsion device - Google Patents
Ion propulsion device Download PDFInfo
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- CN114673641A CN114673641A CN202011568396.1A CN202011568396A CN114673641A CN 114673641 A CN114673641 A CN 114673641A CN 202011568396 A CN202011568396 A CN 202011568396A CN 114673641 A CN114673641 A CN 114673641A
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- positioning plate
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- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229920007790 polymethacrylimide foam Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
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- 230000002411 adverse Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0087—Electro-dynamic thrusters, e.g. pulsed plasma thrusters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0006—Details applicable to different types of plasma thrusters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Particle Accelerators (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention provides an ion propulsion device, which comprises N pairs of electrode units, M negative electrode positioning plates, NxM positive electrode positioning plates and M connecting pieces, wherein the N pairs of electrode units are arranged on the N pairs of negative electrode positioning plates; a plurality of through holes which are arranged at intervals are arranged on one side of the positive electrode positioning plate, and a metal bare wire can penetrate through the different through holes so as to change the distance between the positive electrode and the negative electrode; the negative electrode positioning plate and the positive electrode positioning plate are both provided with clamping grooves, the positive electrode positioning plate is also provided with through holes for positioning metal bare wires, and the distances among the clamping grooves of the negative electrode positioning plate are equal; the center line of each first clamping groove, the center line of a second clamping groove corresponding to the first clamping groove and the center lines of a plurality of third through holes of the positive positioning plate corresponding to the first clamping groove are all positioned in the same horizontal plane, and meanwhile, the metal bare wires are parallel to the wing-shaped long strips; the long strip of the wing profile adopts a symmetrical wing profile. The device of the invention has no moving parts, thus having higher reliability, and has the advantages of simple structure, light weight, no noise and no exhaust pollution.
Description
Technical Field
The invention relates to the technical field of aviation power, in particular to an ion propulsion device.
Background
An "ion wind" is a jet of air generated by the collision of high-velocity charged particles with gas molecules, where the charged particles are generated by corona discharge and accelerated by a high-voltage electric field. During a collision, the reaction force of the gas movement may generate a thrust force opposite to the direction of the gas flow. The development of the 'ionic wind' has been widely researched in various fields, such as the field of flow control, which can be used for inhibiting airflow separation, increasing stall attack angle and increasing maximum lift; the heat-conducting and cooling device can be used for strengthening the air convection heat dissipation of electronic equipment and components in the field of heat transfer and cooling; the method can be used for adjusting the attitude and position of satellites, detectors and the like in the space utilization field. The ion wind generator can be used as a power device to be applied to aircrafts (such as airplanes, airships and the like), does not need to be added with moving parts, has a simple structure of a thrust part, and is a novel aviation propulsion technology.
The 'ionic wind' propulsion device comprises a plurality of groups of electrode arrays, and compared with a traditional propulsion device, the 'ionic wind' propulsion device is large in size and poor in rigidity. In the actual flight process, the electrode array is easily subjected to large deformation under the influence of external force (such as inertia force, aerodynamic force and the like), so that the thrust device is damaged, the actual thrust is reduced, the flight resistance is increased, and the performance of the flight platform is adversely affected.
Disclosure of Invention
The invention provides an ion propulsion device, which can solve the technical problem that an electrode array in the conventional ion propulsion device is easy to deform.
The invention provides an ion propulsion device, which comprises N pairs of electrode units, M negative electrode positioning plates, NxM positive electrode positioning plates and M connecting pieces, wherein the M negative electrode positioning plates are arranged on the N pairs of electrode units;
the electrode units are arranged in an array along the vertical direction, each pair of electrode units comprises a metal bare wire serving as a positive electrode and an airfoil-shaped strip serving as a negative electrode, the metal bare wire and the airfoil-shaped strip of each pair of electrode units are oppositely arranged along the first horizontal direction, the metal bare wire and the airfoil-shaped strip are arranged in parallel, the airfoil-shaped strip is a symmetrical airfoil shape, and M first through holes which are arranged at intervals along the second horizontal direction are arranged on one side of the airfoil-shaped strip, wherein the first horizontal direction is vertical to the second horizontal direction, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2;
the M negative electrode positioning plates are arranged at intervals along a second horizontal direction, the side surface of each negative electrode positioning plate is provided with N first clamping grooves with openings along the first horizontal direction at equal intervals, and the top of each negative electrode positioning plate is provided with a second through hole along the vertical direction;
each positive positioning plate is arranged along the first horizontal direction, one side of each positive positioning plate is provided with a second clamping groove with an opening along the first horizontal direction, the other side of each positive positioning plate is provided with a plurality of third through holes which are arranged at intervals along the first horizontal direction, each positive positioning plate and each first clamping groove are arranged in a one-to-one correspondence manner, and the opening direction of each first card slot is opposite to the opening direction of each second card slot, meanwhile, the center line of each first clamping groove, the center line of a second clamping groove corresponding to the first clamping groove and the center lines of a plurality of third through holes of the positive positioning plate corresponding to the first clamping groove are all located in the same horizontal plane, one side, provided with the first through hole, of each wing-shaped strip is arranged in the first clamping groove, one side, not provided with the first through hole, of each wing-shaped strip is arranged in the second clamping groove, and each metal bare wire sequentially penetrates through any row of third through holes of the M positive positioning plates located in the same horizontal plane;
every the connecting piece passes one in proper order the second through-hole with N first through-hole to connect the negative pole locating plate with it is rectangular to the wing section.
Preferably, the wing section is rectangular including internal filling body, casing and metal level, the casing parcel the internal filling body, metal level part or whole parcel the casing, the material of internal filling body is the polymethacrylimide foam, the material of casing is the fine material of glass, the material of metal level is copper or aluminium.
Preferably, the thickness range of the metal layer is 0.01-0.1 mm.
Preferably, the material of the bare metal wire is copper or aluminum, and the range of the sectional area of the bare metal wire is 0.1-1 mm2。
Preferably, the positive electrode positioning plate and the negative electrode positioning plate are both made of polyvinyl chloride materials.
Preferably, the device further comprises mounting seats, wherein the mounting seats are arranged at the top and the bottom of the negative pole positioning plate at two ends so as to connect the device and the aircraft.
Preferably, the device further comprises a lug, and the lug is arranged between the first clamping groove of the negative positioning plate located at the two ends and the wing-shaped strip.
Preferably, the inner contour of the first clamping groove follows the shape of one side of the wing section, which is rectangular and is provided with the first through hole, and the inner contour of the second clamping groove follows the shape of one side of the wing section, which is rectangular and is not provided with the first through hole.
Preferably, the cross section of the negative electrode positioning plate is streamline.
Preferably, the top and the bottom of the negative electrode positioning plate are both provided with grooves.
By applying the technical scheme of the invention, one side of the positive electrode positioning plate is provided with a plurality of through holes which are arranged at intervals, and a metal bare wire can pass through different through holes to change the distance between the positive electrode and the negative electrode, so that the thrust of the electrode unit is adjusted; the negative electrode positioning plate and the positive electrode positioning plate are both provided with clamping grooves for positioning the wing-shaped long strip, the positive electrode positioning plate is also provided with a through hole for positioning the metal bare wire so as to avoid large deformation of the positioning wing shape and the metal bare wire, and the distances among the clamping grooves of the negative electrode positioning plate are equal to ensure that the distances among each pair of electrode units along the vertical direction are consistent, so that the difference of the vertical direction distances among each pair of electrode units caused by small bending deformation is avoided; the center line of each first clamping groove, the center line of a second clamping groove corresponding to the first clamping groove and the center lines of a plurality of third through holes of the positive positioning plate corresponding to the first clamping groove are all located in the same horizontal plane so as to ensure that the metal bare wires and the wing-shaped long strips of each pair of electrode units are located in the same horizontal plane, and meanwhile, the metal bare wires are parallel to the wing-shaped long strips so as to ensure that the generated thrust reaches the maximum; the airfoil strip adopts a symmetrical airfoil to ensure that the electrode unit and the thrust generated by the electrode unit are positioned in the same horizontal plane, and meanwhile, the flight resistance can be reduced, and the lift force can be generated during the flight at a positive attack angle. The device of the invention has no moving parts, thus having higher reliability, and has the advantages of simple structure, light weight, no noise and no exhaust pollution.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 shows a schematic structural view of an ion propulsion apparatus provided according to an embodiment of the present invention;
FIG. 2 shows a schematic view of the airfoil strip of FIG. 1;
FIG. 3 shows a schematic cross-sectional view of the airfoil strip of FIG. 1;
FIG. 4 is a schematic view of the structure of the positive positioning plate in FIG. 1;
fig. 5 is a schematic structural view of the negative electrode positioning plate of fig. 1;
fig. 6 shows a schematic cross-sectional view of the negative positioning plate of fig. 1;
fig. 7 is a schematic structural diagram of a negative positioning plate provided with a mounting seat and a tab according to an embodiment of the invention;
fig. 8 is a schematic cross-sectional view of a cathode positioning plate provided with a mounting seat and a tab according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an ion propulsion apparatus according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a metal bare wire; 20. an airfoil strip; 21. a first through hole; 22. a housing; 23. an internal filling body; 24. a metal layer; 30. a negative electrode positioning plate; 31. a first card slot; 32. a second through hole; 40. a positive electrode positioning plate; 41. a second card slot; 42. a third through hole; 50. a connecting member; 60. a mounting seat; 70. a tab.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 to 8, the present invention provides an ion propulsion apparatus, which includes N pairs of electrode units, M negative electrode positioning plates 30, N × M positive electrode positioning plates 40, and M connecting members 50;
the electrode structure comprises N pairs of electrode units, wherein the electrode units are arranged in a vertical direction in an array mode, each pair of electrode units comprises a metal bare wire 10 serving as a positive electrode and an airfoil-shaped strip 20 serving as a negative electrode, the metal bare wire 10 and the airfoil-shaped strip 20 of each pair of electrode units are oppositely arranged in a first horizontal direction, the metal bare wire 10 and the airfoil-shaped strip 20 are arranged in parallel, the airfoil-shaped strip 20 is a symmetrical airfoil shape, one side of the airfoil-shaped strip 20 is provided with M first through holes 21 which are arranged at intervals in a second horizontal direction, the first horizontal direction is vertical to the second horizontal direction, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2;
the M negative electrode positioning plates 30 are arranged at intervals along a second horizontal direction, N first clamping grooves 31 with openings along the first horizontal direction are arranged on the side surface of each negative electrode positioning plate 30 at equal intervals, and second through holes 32 along the vertical direction are arranged at the top of each negative electrode positioning plate 30;
each positive positioning plate 40 is arranged along a first horizontal direction, one side of each positive positioning plate 40 is provided with a second clamping groove 41 which is opened along the first horizontal direction, the other side of each positive positioning plate 40 is provided with a plurality of third through holes 42 which are arranged at intervals along the first horizontal direction, each positive positioning plate 40 and each first clamping groove 31 are arranged in a one-to-one correspondence manner, the opening direction of each first clamping groove 31 is opposite to the opening direction of each second clamping groove 41, simultaneously, the central line of each first clamping groove 31, the central line of the second clamping groove 41 which corresponds to the first clamping groove 31 and the central lines of the third through holes 42 of the positive positioning plate 40 which corresponds to the first clamping groove 31 are all positioned in the same horizontal plane, one side of each wing-shaped strip 20 which is provided with the first through hole 21 is arranged in the first clamping groove 31, and one side which is not provided with the first through hole 21 is arranged in the second clamping groove 41, each metal bare wire 10 sequentially passes through any row of third through holes 42 of the M positive positioning plates 40 on the same horizontal plane;
each of the connectors 50 sequentially passes through one of the second through holes 32 and N of the first through holes 21 to connect the negative positioning plate 30 and the wing-shaped strip 20.
By applying the technical scheme of the invention, one side of the positive electrode positioning plate 40 is provided with a plurality of through holes which are arranged at intervals, and the metal bare wires 10 can pass through different through holes to change the distance between the positive electrode and the negative electrode, so that the thrust of the electrode unit is adjusted; the negative electrode positioning plate 30 and the positive electrode positioning plate 40 are both provided with clamping grooves for positioning the wing-shaped long strip 20, the positive electrode positioning plate 40 is also provided with through holes for positioning the metal bare wires 10 so as to avoid large deformation of the positioning wing shape and the metal bare wires 10, and the distances between the clamping grooves of the negative electrode positioning plate 30 are equal, so that the distances between each pair of electrode units along the vertical direction are consistent, and the vertical direction distance difference of each pair of electrode units caused by small bending deformation is avoided; the central line of each first slot 31, the central line of the second slot 41 corresponding to the first slot 31, and the central lines of the third through holes 42 of the positive positioning plate 40 corresponding to the first slot 31 are all in the same horizontal plane, so as to ensure that the bare metal wires 10 and the long airfoil strips 20 of each pair of electrode units are in the same horizontal plane, and meanwhile, the bare metal wires 10 are parallel to the long airfoil strips 20, so as to ensure that the generated thrust is maximized; the airfoil strip 20 is a symmetrical airfoil to ensure that the electrode unit and the thrust generated by the electrode unit are in the same horizontal plane, and simultaneously, the flight resistance can be reduced, and the lift can be generated when the aircraft flies at a positive attack angle. The device of the invention has no moving parts, thus having higher reliability, and has the advantages of simple structure, light weight, no noise and no exhaust pollution.
In the present invention, the bare metal wire 10 as the positive electrode is an emitter electrode with a positive high voltage, and the aerofoil strip 20 as the negative electrode is a collector electrode with a negative high voltage, which generates a forward thrust by ionizing and accelerating air to form an "ion wind" moving backward. The backward direction is the direction from the bare metal wire 10 to the airfoil strip 20, and the forward direction is the direction from the airfoil strip 20 to the bare metal wire 10. The positive positioning plate 40 is used to define the relative position between the bare metal wire 10 and the airfoil strip 20, and ensure that the two are in the same plane. The negative positioning plate 30 is used to define the relative position between each of the airfoil strips 20.
According to an embodiment of the present invention, the airfoil strip 20 includes an internal filling body 23, a shell 22 and a metal layer 24, the shell 22 wraps the internal filling body 23, the metal layer 24 partially or completely wraps the shell 22, the internal filling body 23 is made of polymethacrylimide foam, the shell 22 is made of glass fiber, and the metal layer 24 is made of copper or aluminum.
The shell 22 is made through die pressing, and the internal filling body 23 is made through carving, so that the weight of the airfoil strip 20 is reduced, and the insulating property and the mechanical property inside the airfoil strip 20 are improved. The metal layer 24 is formed by adhering metal foil or spraying metal powder, and the larger the adhering area or the spraying area of the metal layer 24 is, the larger the thrust force is generated, and thus, the thrust force generated when the metal layer 24 completely wraps the housing 22 is the largest. When the metal layer 24 partially wraps the casing 22, the metal layer 24 is disposed on the side of the airfoil strip 20 not provided with the first through hole 21, as shown in fig. 2.
According to an embodiment of the present invention, the thickness of the metal layer 24 is in a range of 0.01-0.1 mm, so as to optimally match the weight of the airfoil strip 20 and its electrical properties.
According to an embodiment of the present invention, the material of the bare metal wire 10 is copper or aluminum, and the cross-sectional area of the bare metal wire 10 ranges from 0.1mm to 1mm2So as to optimize the flying stress state and mechanical properties of the bare metal wire 10.
According to an embodiment of the present invention, the positive electrode positioning plate 40 and the negative electrode positioning plate 30 are made of polyvinyl chloride, so that the positive electrode positioning plate 40 and the negative electrode positioning plate 30 have better mechanical and insulating properties, and the weight is reduced.
According to an embodiment of the present invention, the device further comprises mounting seats 60, wherein the mounting seats 60 are arranged at the top and the bottom of the negative positioning plate 30 at two ends to connect the device and the aircraft, and ensure the relative position of the propulsion device and the aircraft. The mounting 60 is adapted to a corresponding mounting structure on the aircraft.
According to an embodiment of the present invention, the apparatus further includes a tab 70, where the tab 70 is disposed between the first locking groove 31 of the negative positioning plate 30 and the airfoil-shaped strip 20 at two ends, so as to prevent the contact portion between the airfoil-shaped strip 20 and the negative positioning plate 30 from being stressed intensively.
According to an embodiment of the present invention, the inner contour of the first engaging groove 31 follows the shape of the side of the wing-shaped strip 20 where the first through hole 21 is disposed, and the inner contour of the second engaging groove 41 follows the shape of the side of the wing-shaped strip 20 where the first through hole 21 is not disposed, so as to ensure that the wing-shaped strip 20 is tightly attached to both the positive positioning plate 40 and the negative positioning plate 30.
According to an embodiment of the present invention, the cross section of the negative electrode positioning plate 30 is streamlined to reduce air resistance.
According to an embodiment of the present invention, the connecting member 50 includes a positioning rod having two ends provided with threads, and an insulating bolt, the positioning rod passes through the second through hole 32 of the negative electrode positioning plate 30 and the first through hole 21 of the wing-shaped strip 20, and the insulating bolt is in threaded connection with the two ends of the positioning rod. Wherein, the insulating bolt adopts the nylon bolt.
According to an embodiment of the present invention, the negative positioning plate 30 has grooves at the top and bottom for placing nylon bolts, which not only facilitates the installation of the nylon bolts, but also reduces the air resistance of the nylon bolts.
According to the required thrust, the logarithm of the array of the electrode units along the vertical direction is determined. The N pairs of electrode units arrayed in the vertical direction may be regarded as one set of electrode arrays, and a plurality of sets of electrode arrays may be arranged at intervals in the first horizontal direction according to a required thrust.
For example, as shown in fig. 9, the ion propulsion device comprises two sets of electrode arrays, each set of electrode arrays comprising four pairs of electrode units.
In summary, the ion propulsion apparatus provided by the present invention has at least the following advantages compared with the prior art:
(1) the multi-pair electrode units are adopted, no moving part is adopted, the reliability is high, the structure is simple, the weight is light, and no noise or waste gas pollution exists;
(2) the electrode unit is made of common materials, and the processing and manufacturing adopt a conventional process, so that the cost is low, the realization is easy, and the use and the maintenance are convenient;
(3) the wing-shaped strip adopts a symmetrical wing shape, so that the thrust generated by the electrode unit and the thrust generated by the electrode unit are in the same plane, the flight resistance is reduced, and the lift force can be generated during the flight at a positive attack angle;
(4) the positive positioning plate is provided with a clamping groove and a plurality of through holes for positioning, and the inner contour of the groove is matched with the side of the wing-shaped strip, which is not provided with the through holes, so that the positive positioning plate and the wing-shaped strip are tightly attached; the through holes of the positive electrode positioning plate and the corresponding wing-shaped strips are positioned in the same plane, and the metal bare wires can pass through the different through holes to change the distance between the positive electrode and the negative electrode, so that the thrust of the electrode unit is adjusted;
(5) the negative positioning plate is provided with a plurality of clamping grooves and through holes for positioning, the inner contour of each groove is matched with one side of the wing-shaped strip provided with the through holes, and the wing-shaped strip are tightly attached; the negative electrode positioning plate is used for ensuring that the distance between each pair of electrode units along the vertical direction is consistent, and avoiding the difference of the distance between each pair of electrode units along the vertical direction caused by small-amplitude bending deformation;
(6) lugs are arranged between the clamping grooves of the negative electrode positioning plates at the two ends and the wing-shaped long strip to prevent the contact part of the wing-shaped long strip and the negative electrode positioning plate from being stressed and concentrated;
(7) the section of the negative electrode positioning plate is designed in a streamline shape, so that the flight resistance is reduced;
(8) common materials are selected for the positive electrode positioning plate and the negative electrode positioning plate, and conventional processes are adopted for processing and manufacturing, so that the cost is low, the realization is easy, and the mass production is facilitated.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An ion propulsion device, characterized in that the device comprises N pairs of electrode units, M negative positioning plates (30), NxM positive positioning plates (40) and M connecting pieces (50);
the electrode units are arranged in an array along the vertical direction, each pair of the electrode units comprises a metal bare wire (10) serving as a positive electrode and an airfoil-shaped strip (20) serving as a negative electrode, the metal bare wire (10) and the airfoil-shaped strip (20) of each pair of the electrode units are oppositely arranged along a first horizontal direction, the metal bare wire (10) and the airfoil-shaped strip (20) are arranged in parallel, the airfoil-shaped strip (20) is a symmetrical airfoil shape, M first through holes (21) are arranged on one side of the airfoil-shaped strip (20) at intervals along a second horizontal direction, the first horizontal direction is vertical to the second horizontal direction, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2;
the M negative positioning plates (30) are arranged at intervals along a second horizontal direction, the side surface of each negative positioning plate (30) is provided with N first clamping grooves (31) with openings along the first horizontal direction at equal intervals, and the top of each negative positioning plate is provided with a second through hole (32) along the vertical direction;
each positive positioning plate (40) is arranged along a first horizontal direction, one side of each positive positioning plate is provided with a second clamping groove (41) which is opened along the first horizontal direction, the other side of each positive positioning plate is provided with a plurality of third through holes (42) which are arranged at intervals along the first horizontal direction, each positive positioning plate (40) and each first clamping groove (31) are arranged in a one-to-one correspondence manner, the opening direction of each first clamping groove (31) is opposite to the opening direction of each second clamping groove (41), meanwhile, the central line of each first clamping groove (31), the central line of each second clamping groove (41) which corresponds to the first clamping groove (31), and the central lines of a plurality of third through holes (42) of each positive positioning plate (40) which corresponds to the first clamping groove (31) are all positioned in the same horizontal plane, one side of each wing-shaped strip (20) which is provided with the first through hole (21) is arranged in the first clamping groove (31), one side without the first through hole (21) is arranged in the second clamping groove (41), and each metal bare wire (10) sequentially penetrates through any row of third through holes (42) of the M positive positioning plates (40) on the same horizontal plane;
each connecting piece (50) sequentially penetrates through one second through hole (32) and N first through holes (21) so as to connect the negative pole positioning plate (30) and the wing-shaped strip (20).
2. The device according to claim 1, characterized in that the airfoil strip (20) comprises an internal filling body (23), a shell (22) and a metal layer (24), wherein the shell (22) wraps the internal filling body (23), the metal layer (24) partially or completely wraps the shell (22), the internal filling body (23) is made of polymethacrylimide foam, the shell (22) is made of glass fiber, and the metal layer (24) is made of copper or aluminum.
3. The device according to claim 2, wherein the metal layer (24) has a thickness in the range of 0.01 to 0.1 mm.
4. The device according to claim 1, wherein the material of the bare metal wire (10) is copper or aluminum, and the cross-sectional area of the bare metal wire (10) is in the range of 0.1-1 mm2。
5. The device according to claim 1, wherein the positive positioning plate (40) and the negative positioning plate (30) are made of polyvinyl chloride material.
6. The device of claim 1, further comprising mounting seats (60), the mounting seats (60) being provided at the top and bottom of the negative positioning plate (30) at both ends to connect the device and an aircraft.
7. The device according to claim 1, further comprising a tab (70), wherein the tab (70) is disposed between the first slot (31) of the negative positioning plate (30) and the airfoil strip (20).
8. Device according to claim 1, characterized in that the inner contour of the first slot (31) follows the side of the wing strip (20) provided with the first through hole (21), and the inner contour of the second slot (41) follows the side of the wing strip (20) not provided with the first through hole (21).
9. The device according to claim 1, wherein the negative positioning plate (30) has a streamlined cross-section.
10. The device according to claim 1, wherein the negative positioning plate (30) is provided with a groove at the top and bottom.
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