Closed-loop moving coil type electromagnetic ejection device and method

Abstract

The invention discloses a closed-loop moving coil type electromagnetic ejection device and method, and relates to the technical field of electromagnetic ejection, the closed-loop moving coil type electromagnetic ejection device comprises a stator magnetic steel mechanism, a mover coil mechanism and at least one guide assembly, the stator magnetic steel mechanism is sleeved with the mover coil mechanism, and the mover coil mechanism is connected with the stator magnetic steel mechanism through the guide assembly; and the stator magnetic steel mechanism relatively moves along the length direction of the stator magnetic steel mechanism. According to the closed-loop moving-coil type electromagnetic ejection device disclosed by the invention, the rotor coil mechanism forms a closed structure wrapping the section of the stator magnetic steel mechanism in the length direction in the circumferential direction, so that the structural strength of the rotor coil mechanism can be greatly improved, and a force transmission path is more reasonable and balanced; the gap between the rotor coil mechanism and the stator magnetic steel mechanism is consistent in the moving process, the ejection performance is more stable and reliable, tow lines can be flexibly arranged on the peripheral side of the rotor coil mechanism, maintenance is convenient, the manufacturing cost is low, and the input benefit is high.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic catapult technology, specifically a closed-loop moving-coil electromagnetic catapult device and method. Background Technology

[0002] Currently, catapult devices can eject drones, transport vehicles, and other projectiles to provide them with a certain initial velocity.

[0003] Among them, the electromagnetic catapult device, as a type of catapult device, is generally composed of a coil and a magnet, which are slidably arranged relative to each other. By energizing the coil, electrical energy is converted into the kinetic energy required for catapult launch.

[0004] However, most of the power units in existing electromagnetic catapults have an open or open structure, which is placed on the stator unit. The force structure is not reasonable, and the overall strength, reliability and stability of the device are not good, which affects the catapult performance. This problem needs to be solved urgently. Summary of the Invention

[0005] The purpose of this invention is to provide a closed-loop moving-coil electromagnetic catapult device and method, which can improve the overall strength of existing electromagnetic catapult devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides a closed-loop moving-coil electromagnetic catapult device, comprising a stator magnet mechanism, a moving coil mechanism and at least one guide component, wherein the moving coil mechanism is sleeved on the stator magnet mechanism and connected to the stator magnet mechanism through the guide component, and moves relative to the stator magnet mechanism along the length direction of the stator magnet mechanism.

[0007] As a further embodiment of the present invention, the moving coil mechanism includes a frame assembly and multiple coil assemblies. The frame assembly is sleeved on the stator magnet mechanism and connected to the stator magnet mechanism through a guide assembly. Coil assemblies are arranged on both sides of the stator magnet mechanism along the height or width direction, and the coil assemblies are connected to the inner wall of the frame assembly.

[0008] As a further embodiment of the present invention, the frame assembly includes a first mounting plate and a second mounting plate. The first mounting plate is arranged on both sides of the stator magnet mechanism along the height direction, and the first mounting plate is connected to the stator magnet mechanism through a guide assembly. A second mounting plate is arranged on both sides of the stator magnet mechanism along the width direction, and the second mounting plate is connected to the adjacent first mounting plate. A coil assembly is arranged on both sides of the stator magnet mechanism along the width direction, and the coil assembly is connected to the inner wall of the corresponding second mounting plate.

[0009] As a further embodiment of the present invention, a positioning structure is provided between the second mounting plate and the coil assembly.

[0010] As a further embodiment of the present invention, at least one of the first mounting plate and the second mounting plate has a weight-reducing portion.

[0011] As a further embodiment of the present invention, the guiding assembly includes a guide rod and at least one guide sleeve, and the stator magnet mechanism is connected to the guide rods on both sides along the height direction. Each guide sleeve is connected to the inner wall of the first mounting plate and / or the second mounting plate, and slides in match with the corresponding guide rod.

[0012] As a further embodiment of the present invention, the stator magnet mechanism includes a profile frame, multiple connectors and multiple stator magnets, with connectors respectively connected to both sides of the profile frame along the height direction. Stator magnets are arranged on both sides of the profile frame along the width direction, and the stator magnets are connected to adjacent connectors. The guide rod is connected to the corresponding connector on the side away from the profile frame.

[0013] As a further embodiment of the present invention, it also includes: The detection assembly includes a detection sensor and a detection strip. The detection sensor is provided on the inner wall of the first mounting plate, and the detection strip is correspondingly provided on the connector to detect the relative position of the stator magnet mechanism and the mover coil mechanism.

[0014] As a further embodiment of the present invention, it also includes: The first mounting bracket assembly is connected to the end of the stator magnet mechanism and is used for fixed connection to the part to be installed; And / or, a second mounting bracket assembly, which is connected to the first end of the stator magnet mechanism and is used to fix it to the part to be installed, and can be raised and lowered relative to adjust the ejection angle of the first end of the stator magnet mechanism.

[0015] In a second aspect, the present invention provides a closed-loop moving-coil electromagnetic catapult method, applicable to any of the closed-loop moving-coil electromagnetic catapult devices provided in the first aspect, the method comprising: A driving current is supplied to the mover coil mechanism so that the mover coil mechanism accelerates its movement on the stator magnet mechanism; After the moving coil mechanism moves to the specified speed, a braking current is supplied to the moving coil mechanism to decelerate and stop on the stator magnet mechanism.

[0016] The closed-loop moving-coil electromagnetic catapult device and method provided by this invention have at least the following technical advantages: The closed-loop moving-coil electromagnetic catapult device includes a stator magnet mechanism, a moving coil mechanism, and at least one guide component. The stator magnet mechanism is used to be placed on the part to be installed, and the moving coil mechanism is used to place the material to be launched. By sleeved on the stator magnet mechanism and connected to the stator magnet mechanism through the guide component, the moving coil mechanism can move relative to the stator magnet mechanism along its length. Therefore, the closed-loop moving-coil electromagnetic catapult device provided by this invention forms a circumferentially enclosed closed structure on a section of the stator magnet mechanism along its length through the moving coil mechanism. This significantly improves the structural strength of the moving coil mechanism, makes the force transmission path more reasonable and balanced, ensures consistent gaps between the moving coil mechanism and the stator magnet mechanism during movement, and makes the launch performance more stable and reliable. Furthermore, it allows for flexible arrangement of the drag line around the moving coil mechanism, eliminating the contact problems associated with power supply via sliding contact lines in existing moving units. This facilitates maintenance, reduces manufacturing costs, and increases investment efficiency. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the closed-loop moving-coil electromagnetic catapult device provided in an embodiment of the present invention; Figure 2 for Figure 1 A sectional view along section AA in the middle; Figure 3 for Figure 1 A schematic diagram showing the connection relationship between the moving coil mechanism and the guide sleeve in the diagram. Figure 4 The flowchart illustrates the closed-loop moving-coil electromagnetic catapult method provided in this embodiment of the invention.

[0019] Figure label: 100. Stator magnet mechanism; 110. Profile frame; 120. Connector; 130. Stator magnet; 200, Moving coil mechanism; 210, Frame assembly; 211, First mounting plate; 212, Second mounting plate; 2121, Positioning groove; 220, Coil assembly; 2201, Positioning protrusion; 300. Guide assembly; 310. Guide rod; 320. Guide sleeve; 400. Detection component; 410. Detection sensor; 420. Detected strip; 500. First mounting bracket assembly; 600. Second mounting bracket assembly. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] Firstly, please refer to Figures 1 to 3As shown, this embodiment of the invention provides a closed-loop moving coil electromagnetic catapult device, including a stator magnet mechanism 100, a moving coil mechanism 200 and at least one guide component 300. The moving coil mechanism 200 is sleeved on the stator magnet mechanism 100 and connected to the stator magnet mechanism 100 through the guide component 300, and moves relative to the stator magnet mechanism 100 along its length.

[0027] In this embodiment, the stator magnet mechanism 100 is generally a long, strip-shaped block, plate, or frame structure, used for mounting on a foundation, mobile platform, vehicle, etc. The magnet mechanism 100 has a slide rail along its length. In this embodiment, the moving coil mechanism 200 is generally hollow, block-shaped, frame-shaped, or similar to a sleeve. When energized, it generates driving or braking force with the stator magnet mechanism 100 due to magnetic force. The upper surface of the moving coil mechanism 200 is used to place the ejected material.

[0028] The guide assembly 300 in this embodiment can be composed of components such as guide rods and guide sleeves, sliders and guide rails, and is used to provide guidance along a straight direction.

[0029] Specifically, the moving coil mechanism 200 is mounted on the stator magnet mechanism 100, and the guide component 300 is mounted on the stator magnet mechanism 100 with the guide direction consistent with the slide direction. The moving coil mechanism 200 forms a stable moving connection with the stator magnet mechanism 100 through the guide component 300.

[0030] In this way, compared with the existing open-type and open-type moving part structure, the application of the closed-loop moving coil electromagnetic catapult device provided by the embodiment of the present invention can significantly improve the structural strength of the moving part coil mechanism 200 by forming a closed structure that covers a section of the stator magnet mechanism 100 along the length direction in a circumferential direction through the moving part coil mechanism 200. The force transmission path is more reasonable and balanced, the gap between the moving part coil mechanism 200 and the stator magnet mechanism 100 is consistent during the movement, the catapult performance is more stable and reliable, and the drag line can be flexibly arranged around the moving part coil mechanism 200, which is convenient for maintenance, has lower manufacturing cost, and higher investment efficiency.

[0031] In some embodiments, the mover coil mechanism 200 includes a frame assembly 210 and a plurality of coil assemblies 220. The frame assembly 210 is sleeved on the stator magnet mechanism 100 and connected to the stator magnet mechanism 100 via a guide assembly 300.

[0032] Coil assemblies 220 are arranged on both sides of the stator magnet mechanism 100 along the height or width direction, and the coil assemblies 220 are connected to the inner wall of the frame assembly 210.

[0033] Specifically, such as Figure 2 , Figure 3As shown, the cross-section of the frame component 210 is roughly rectangular or a regular polygon, and each surface of the frame component 210 is roughly parallel to the surface of the stator magnet mechanism 100. This makes the force transmission path more reasonable.

[0034] For example, such as Figure 2 As shown, the suction forces on the left and right sides act on the upper and lower supports of the frame component 210. The internal forces of the upper and lower supports counteract the suction forces on the left and right sides, and will not exert lateral forces on the guide component 300 in the left and right directions. The guide component 300 only provides vertical support. Even if there is a slight imbalance in the suction forces on the left and right sides, the lateral force acting on the guide component 300 after counteracting is extremely small, thereby greatly reducing the movement resistance and making the structure more stable.

[0035] The coil assembly 220 can include a coreless or cored structure. Alternatively, the coil assembly 220 can be arranged vertically on both sides of the stator magnet mechanism 100, and correspondingly, the guide assembly 300 can be arranged horizontally on both sides of the stator magnet mechanism 100, depending on actual needs. Furthermore, by connecting the coil assembly 220 to the inner wall of the frame assembly 210, the structure becomes more compact. If necessary, a shielding layer can be provided around the closed-loop moving-coil electromagnetic catapult device. The shielding layer can be fixedly installed at both ends of the stator magnet mechanism 100, leaving only a slot for the catapult frame to slide, to reduce outward magnetic radiation.

[0036] Furthermore, in this embodiment, the frame assembly 210 includes a first mounting plate 211 and a second mounting plate 212. The first mounting plate 211 is arranged on both sides of the stator magnet mechanism 100 along the height direction, and the first mounting plate 211 is connected to the stator magnet mechanism 100 through the guide assembly 300.

[0037] The stator magnet mechanism 100 has two second mounting plates 212 arranged on both sides along the width direction, and the second mounting plates 212 are connected to the adjacent first mounting plates 211. The stator magnet mechanism 100 has two coil assemblies 220 arranged on both sides along the width direction, and the coil assemblies 220 are connected to the inner wall of the corresponding second mounting plate 212.

[0038] For example, such as Figure 2 , Figure 3As shown, the frame assembly 210 has a rectangular or square cross-section. The frame assembly 210 includes two upper and lower first mounting plates 211 and two left and right second mounting plates 212. The four plates are sequentially fixed together by welding or screwing. The first mounting plates 211 are connected to the stator magnet mechanism 100 via a guide assembly 300. The coil assembly 220 can be fixed to the inner wall of the corresponding second mounting plate 212 by screwing or welding. Furthermore, reinforcing blocks or ribs can be provided at the corner joints of adjacent plates to further increase structural strength. The above two splicing structures facilitate single-piece processing and subsequent assembly, meeting the needs of mass production and rapid manufacturing.

[0039] Furthermore, in this embodiment, a positioning structure is provided between the second mounting plate 212 and the coil assembly 220.

[0040] For example, such as Figure 2 As shown, the inner wall of the second mounting plate 212 has a positioning groove, and the coil assembly 220 has a positioning protrusion on the side facing the positioning groove. By matching the positioning protrusion with the positioning groove, the stability of the connection between the second mounting plate 212 and the coil assembly 220 can be ensured, and relative displacement during use can be avoided. Of course, other types of positioning structures can also be used instead, depending on the actual needs. This embodiment does not impose too many restrictions.

[0041] Furthermore, in this embodiment, at least one of the first mounting plate 211 and the second mounting plate 212 has a weight-reducing portion.

[0042] For example, such as Figure 3 As shown, the weight-reducing part can be a weight-reducing hole, a weight-reducing groove, etc. The first mounting plate 211 and the second mounting plate 212 can both be provided with the above-mentioned weight-reducing holes and weight-reducing grooves, which can significantly reduce the total weight of the mover coil mechanism 200, thereby enabling the ejection of heavier materials. The specific shape, quantity, and position of the weight-reducing part can be determined according to actual needs, and are not specifically limited in this embodiment.

[0043] In some embodiments, the guide assembly 300 includes a guide rod 310 and at least one guide sleeve 320, and the guide rod 310 is connected to both sides of the stator magnet mechanism 100 along the height direction.

[0044] Each guide sleeve 320 is connected to the inner wall of the first mounting plate 211 and / or the second mounting plate 212, and slides in match with the corresponding guide rod 310.

[0045] For example, such as Figure 2As shown, each guide rod 310 is matched with two guide sleeves 320. The two guide sleeves 320 are arranged at intervals along the extension direction of the guide rod 310. The guide rod 310 can be fixed to one side of the upper or lower surface of the stator magnet mechanism 100 by means of screwing, welding or other methods, leaving space for the sensor to be installed. The corresponding two guide sleeves 320 can also be fixed to the inner wall of the corner of the adjacent first mounting plate 211 and second mounting plate 212 by means of screwing, welding or other methods, so as to facilitate manufacturing, processing and assembly.

[0046] Of course, the guide component 300 can also be replaced by other types of guide components, such as guide rails and sliders. The specific model, quantity, and installation position of the guide rod 310 and guide sleeve 320 can be determined according to actual needs, and no restrictions are imposed in this embodiment.

[0047] In addition, an opening slot is provided on the side of the guide sleeve 320 facing the stator magnet mechanism 100, and the opening slot communicates with the inner hole of the guide sleeve 320.

[0048] Specifically, such as Figure 2 As shown, the opening slot of the guide sleeve 320 located above the stator magnet mechanism 100 is angled downwards, while the opening slot of the guide sleeve 320 located below the stator magnet mechanism 100 is angled upwards. The opening slot can accommodate the slight deformation between the guide sleeve 320 and the guide rod 310 caused by heat generation, unevenness, etc., to avoid jamming or increasing sliding resistance; on the other hand, it can avoid interference between the support components of the guide rod 310 and the stator magnet mechanism 100, and meet the installation requirements of the guide rod 310.

[0049] In some embodiments, the stator magnet mechanism 100 includes a profile frame 110, a plurality of connectors 120 and a plurality of stator magnets 130, with connectors 120 respectively connected to both sides of the profile frame 110 along the height direction.

[0050] Stator magnets 130 are arranged on both sides of the profile frame 110 along the width direction, and the stator magnets 130 are connected to the adjacent connectors 120. The guide assembly 300 is connected to the corresponding connector 120 on the side away from the profile frame 110.

[0051] Specifically, such as Figure 2 As shown, the profile frame 110 can be made of aluminum profile, which can significantly reduce weight. The connector 120 can be a connecting plate, and its cross-section can be I-shaped, straight, etc. The two connectors 120 can be fixed to the upper and lower surfaces of the profile frame 110 by means of screwing, welding, etc. The two stator magnets 130 can be fixed to the left and right sides of the connector 120 by means of screwing, welding, etc. The two guide rods 310 can be fixed to the corner position of the connector 120 by means of screwing, welding, etc., which facilitates single-piece processing and subsequent assembly.

[0052] In some embodiments, the closed-loop moving-coil electromagnetic catapult device provided in this invention further includes: The detection assembly 400 includes a detection sensor 410 and a detection strip 420. The detection sensor 410 is provided on the inner wall of the first mounting plate 211, and the detection strip 420 is correspondingly provided on the connector 120 to detect the relative position of the stator magnet mechanism 100 and the mover coil mechanism 200.

[0053] Specifically, such as Figure 2 As shown, the detection sensor 410 cooperates with the detection strip 420 to detect the relative position of the stator magnet mechanism 100 and the mover coil mechanism 200. For example, the detection sensor 410 can be a magnetoelectric sensor, and the detection strip 420 can be a magnetic strip. The detection sensor 410 can be installed on the inner wall of the first mounting plate 211, facing the connector 120. The detection strip 420 can be fixed to the connector 120 by means of screwing, welding, etc. The length direction of the detection strip 420 is consistent with the length direction of the connector 120, so that the position can be detected in real time. The specific type, specifications, quantity, and installation position of the detection sensor 410 and the detection strip 420 can be determined according to actual needs, and no excessive restrictions are imposed in this embodiment.

[0054] In some embodiments, the closed-loop moving-coil electromagnetic catapult device provided in this invention further includes: The first mounting bracket assembly 500 is connected to the end of the stator magnet mechanism 100 and is used to fix it to the part to be installed.

[0055] Specifically, such as Figure 1 As shown, the first mounting base assembly 500 can be a hinge structure or a fixed structure, etc. Its upper end can be connected to the end of the stator magnet mechanism 100 by means of screwing, welding, snap-fitting, etc. Moreover, the lower end of the first mounting base assembly 500 can be fixed to the part to be installed (such as a foundation, mobile platform, vehicle, etc.) by means of screwing, welding, etc., to play a fixed support role.

[0056] And / or, a second mounting bracket assembly 600, which is connected to the first end of the stator magnet mechanism 100 and is used to fix it to the part to be installed, and can be raised and lowered relative to adjust the ejection angle of the first end of the stator magnet mechanism 100.

[0057] Specifically, such as Figure 1As shown, the second mounting base assembly 600 can be a telescopic support structure or a fixed support structure. The upper end of the second mounting base assembly 600 can be connected to the first end of the stator magnet mechanism 100 by means of screwing, welding, snap-fitting, etc. The lower end of the second mounting base assembly 600 can be fixed to the part to be installed (such as a foundation, mobile platform, vehicle, etc.) by means of screwing, welding, etc., to play a fixed support role. When the second mounting base assembly 600 has a lifting function, the pitch angle of the first end of the stator magnet mechanism 100 can be adjusted.

[0058] The specific type, specifications, and installation location of the first mounting bracket assembly 500 and the second mounting bracket assembly 600 can be determined according to actual needs, and are not specifically limited in this embodiment.

[0059] Secondly, such as Figure 4 As shown, this embodiment of the invention also provides a closed-loop moving-coil electromagnetic catapult method, applied to the closed-loop moving-coil electromagnetic catapult device in any of the above embodiments, comprising the following steps: S100: A driving current is supplied to the moving coil mechanism 200 so that the moving coil mechanism 200 moves faster on the stator magnet mechanism 100.

[0060] Specifically, the moving coil mechanism 200 can be supplied with driving current by an external power supply device (such as a frequency converter). The driving current causes the moving coil mechanism 200 to accelerate on the stator magnet mechanism 100, thereby providing an initial velocity for the ejected material.

[0061] S200: After the moving coil mechanism 200 moves to the specified speed, a braking current is supplied to the moving coil mechanism 200 so that the moving coil mechanism 200 decelerates and stops on the stator magnet mechanism 100.

[0062] Specifically, after the moving coil mechanism 200 moves to the specified speed, the ejected material is thrown out by inertia. At this time, a braking current can be supplied to the moving coil mechanism 200 through an external power supply device to make the moving coil mechanism 200 brake quickly and prevent it from sliding out of the slide rail on the stator magnet mechanism 100.

[0063] Therefore, the closed-loop moving coil electromagnetic catapult method provided by the present invention forms a closed structure that covers a section of the stator magnet mechanism 100 along the length direction through the moving coil mechanism 200. This can significantly improve the structural strength of the moving coil mechanism 200, make the force transmission path more reasonable and balanced, ensure good consistency of the gap between the moving coil mechanism 200 and the stator magnet mechanism 100 during movement, make the catapult performance more stable and reliable, and also allow for flexible arrangement of the drag line around the moving coil mechanism 200, which is convenient for maintenance, has lower manufacturing costs, and higher investment efficiency.

[0064] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A closed-loop moving-coil electromagnetic catapult device, characterized in that, It includes a stator magnet mechanism (100), a mover coil mechanism (200), and at least one guide assembly (300). The mover coil mechanism (200) is sleeved on the stator magnet mechanism (100) and connected to the stator magnet mechanism (100) through the guide assembly (300), and moves relative to the stator magnet mechanism (100) along its length.

2. The closed-loop moving-coil electromagnetic catapult device according to claim 1, characterized in that, The moving coil mechanism (200) includes a frame assembly (210) and a plurality of coil assemblies (220). The frame assembly (210) is sleeved on the stator magnet mechanism (100) and connected to the stator magnet mechanism (100) through the guide assembly (300). The coil assemblies (220) are arranged on both sides of the stator magnet mechanism (100) along the height or width direction, and the coil assemblies (220) are connected to the inner wall of the frame assembly (210).

3. The closed-loop moving-coil electromagnetic catapult device according to claim 2, characterized in that, The frame assembly (210) includes a first mounting plate (211) and a second mounting plate (212). The first mounting plate (211) is arranged on both sides of the stator magnet mechanism (100) along the height direction, and the first mounting plate (211) is connected to the stator magnet mechanism (100) through the guide assembly (300). The second mounting plate (212) is arranged on both sides of the stator magnet mechanism (100) along the width direction, and the second mounting plate (212) is connected to the adjacent first mounting plate (211). The coil assembly (220) is arranged on both sides of the stator magnet mechanism (100) along the width direction, and the coil assembly (220) is connected to the inner wall of the corresponding second mounting plate (212).

4. The closed-loop moving-coil electromagnetic catapult device according to claim 3, characterized in that, A positioning structure is provided between the second mounting plate (212) and the coil assembly (220).

5. The closed-loop moving-coil electromagnetic catapult device according to claim 3, characterized in that, At least one of the first mounting plate (211) and the second mounting plate (212) has a weight-reducing part.

6. The closed-loop moving-coil electromagnetic catapult device according to claim 3, characterized in that, The guide assembly (300) includes a guide rod (310) and at least one guide sleeve (320), and the guide rod (310) is connected to both sides of the stator magnet mechanism (100) along the height direction. Each of the guide sleeves (320) is connected to the inner wall of the first mounting plate (211) and / or the second mounting plate (212) and slides to match the corresponding guide rod (310).

7. The closed-loop moving-coil electromagnetic catapult device according to claim 3, characterized in that, The stator magnet mechanism (100) includes a profile frame (110), multiple connectors (120) and multiple stator magnets (130), with the connectors (120) respectively connected to both sides of the profile frame (110) along the height direction. The stator magnets (130) are respectively arranged on both sides along the width direction of the profile frame (110), and the stator magnets (130) are connected to the adjacent connectors (120). The guide assembly (300) is connected to the side of the corresponding connector (120) away from the profile frame (110).

8. The closed-loop moving-coil electromagnetic catapult device according to claim 7, characterized in that, Also includes: The detection assembly (400) includes a detection sensor (410) and a detection strip (420). The detection sensor (410) is disposed on the inner wall of the first mounting plate (211), and the detection strip (420) is disposed on the connector (120) to detect the relative position of the stator magnet mechanism (100) and the mover coil mechanism (200).

9. The closed-loop moving-coil electromagnetic catapult device according to any one of claims 1 to 8, characterized in that, Also includes: The first mounting bracket assembly (500) is connected to the end of the stator magnet mechanism (100) and is used for fixed connection to the part to be mounted; And / or, a second mounting bracket assembly (600), which is connected to the first end of the stator magnet mechanism (100) and is used to be fixedly connected to the part to be installed, and can be raised and lowered relative to adjust the ejection angle of the first end of the stator magnet mechanism (100).

10. A closed-loop moving-coil electromagnetic catapult method, characterized in that, Applied to the closed-loop moving-coil electromagnetic catapult device as described in any one of claims 1 to 9, the method comprises: A drive current is supplied to the moving coil mechanism (200) to accelerate the moving coil mechanism (200) on the stator magnet mechanism (100); After the moving coil mechanism (200) moves to a specified speed, a braking current is supplied to the moving coil mechanism (200) so that the moving coil mechanism (200) decelerates and stops on the stator magnet mechanism (100).

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