Electromagnetic transmitting device

Abstract

The invention discloses an electromagnetic transmitting device which comprises a track support, a coil assembly and a coil support, a transmitting track is arranged on the track support, the coil assembly at least comprises a pair of exciting coils which are connected in series or in parallel, the coil assembly is symmetrically distributed on the left side and the right side of the transmitting track, and the axis direction of the exciting coils is perpendicular to the direction of the transmitting track; an opening is formed in the launching track, one end of the opening at least extends to the position between the symmetrically-distributed coil sets, and a launcher can penetrate through the opening to reach the launching position on the launching track. The coil support is made of magnetic conductive materials, the two ends of the coil support penetrate into the axes of the exciting coils on the two sides of the launching track respectively, and the launcher is triggered from the launching position under the action of the coil assembly and the coil support.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic emission, and in particular to an electromagnetic emission device. Background Art

[0002] Existing electromagnetic launchers generally require the use of push rods and other devices to deliver the projectiles to the launchable area before launching. The need to set up push rods and other devices increases the number of parts of the electromagnetic launcher, increases the manufacturing cost, and increases the probability of failure. At the same time, the process of the push rod and other devices delivering the projectiles to the launchable area takes time, which affects the efficiency of continuous launch and increases the probability of failure.

[0003] Patent CN118532999A discloses an electromagnetic propulsion system, which uses a special magazine design and a special front end structure of the projectile to achieve the effect of directly launching the projectile from a zero speed state in the launching direction without a push rod. However, if the projectile is of other structures, for example, the front end of the projectile is made of non-magnetic material, the function of firing without a push rod cannot be achieved.

[0004] The prior art CN212512693U discloses an electromagnetic launch device, which uses a power element to pressurize and power a capacitor, and controls the release of energy stored in the capacitor to accelerate the projectile. The secondary coil is located on both sides of the launch track to accelerate the flanks of the projectile. It can launch projectiles with flanks, but is also unable to target projectiles whose front end is not conducive to being launched by the electromagnetic launch device, or which cannot be launched by the electromagnetic launch device.

[0005] In view of the above technical problems, the present invention is specially introduced. Summary of the invention

[0006] The main purpose of the present invention is to provide an electromagnetic launching device suitable for a variety of projectiles, especially to solve the technical problem of launching projectiles that are difficult or cannot be launched by the electromagnetic launching device without a push rod.

[0007] In order to achieve the above-mentioned object, the present invention proposes an electromagnetic launch device, comprising a track support, a coil group and a coil support, wherein the track support is provided with a launch track, the coil group comprises at least a pair of excitation coils connected in series or in parallel with each other, the excitation coils are symmetrically distributed on both sides of the launch track, and the axial direction of the excitation coil is perpendicular to the direction of the launch track;

[0008] The launch track is provided with an opening, and one end of the opening at least extends to between the symmetrically distributed coil groups, and the opening can accommodate a projectile to pass through to reach a launch position on the launch track;

[0009] The coil support is made of magnetic conductive material, and both ends of the coil support are respectively inserted into the axis of the excitation coil on both sides of the launch track. Under the action of the coil group and the coil support, the launch object is launched from the launch position.

[0010] Furthermore, the excitation coil includes a coil drum and a winding wire. The coil drums located on both sides of the transmitting track are parallel to each other. The coil drum includes an inner disk surface close to the transmitting track and an outer disk surface away from the transmitting track. The two side edges of the transmitting track are respectively adjacent to the inner disk surfaces of the excitation coils on both sides.

[0011] Furthermore, the coil bracket includes bracket side panels located on both sides, and a bracket connecting plate connected between the bracket side panels, the bracket side panels cooperate with the outer disk surface, and the bracket side panels are provided with an insertion portion, and the insertion portion cooperates with the inner surface of the axial center hole of the excitation coil.

[0012] Furthermore, the cross-sectional area of ​​the insertion portion occupies at least 20% of the area of ​​the excitation coil, and the bracket connecting plate is located below or behind the transmitting track.

[0013] Furthermore, the end surface of the insertion portion extends out of the inner disk surface or is flush with the inner disk surface, and the two side edges of the launch track are located below the position of the insertion portion.

[0014] Furthermore, the end surface of the insertion portion extending out of the inner disk surface is configured as a curved surface.

[0015] Furthermore, the electromagnetic launching device also includes an induction component, and the induction component is adjacent to the launching track.

[0016] Furthermore, the electromagnetic transmitting device also includes a current control component, and the current control component controls the on and off of the current in the coil group according to the detection feedback of the induction component.

[0017] Furthermore, the surface of the launch track is set as an arc surface, the front end of the track bracket includes a launch tube, the launch tube is connected to the launch track, and the inner surface of the launch tube cooperates with the outer surface of the projectile.

[0018] Furthermore, the left and right sides of the track bracket are respectively movably connected to the position below the axial center hole on the excitation coil, so that the installation position of the excitation coil can be adjusted;

[0019] Alternatively, the track bracket and the inner disk surfaces of the coil drums on both sides thereof form an integrated structure.

[0020] By applying the technical solution of the present invention, at least the following beneficial effects are achieved:

[0021] 1. The electromagnetic launching device of the present invention arranges the coil group and the coil support at the position of the launching track, so that the front section of the projectile can be immersed between the coil groups, so that the rear section of the projectile with magnetic material can be infinitely close to the excitation coil in the launching direction, without the aid of other devices such as a push rod, thereby reducing the length of the gun barrel and consuming no additional electric energy, so that the projectile can be directly launched from the launching position in the launching direction from a zero speed state.

[0022] 2. The electromagnetic launching device of the present invention can support the coil group and improve the structural strength of the electromagnetic launching device by designing the shape of the coil bracket, and guide the direction of the magnetic flux lines, reduce magnetic resistance, increase magnetic flux, and thus improve the firing efficiency; by further designing the shape and size of the insertion part, it can better fix the excitation coil, and will not hinder the positional relationship between the coil reel and the track bracket, and will not hinder the passage of the projectile.

[0023] 3. The electromagnetic launching device of the present invention is provided with an induction component and a current control component. When it is detected that the launch object leaves the launching position due to being launched, the current control component can immediately cut off the power to the excitation coil to prevent affecting the launch of the launch object. When it is detected that the launch object reaches the launching position, the excitation coil can also be immediately powered on.

[0024] 4. The electromagnetic launch device of the present invention is designed so that the installation position of the excitation coil on the track bracket can be adjusted, so that it can adapt to the launch of projectiles with different front section lengths, making the electromagnetic launch device more applicable to a wider range.

[0025] 5. The electromagnetic launching device of the present invention has a relatively simple structure, does not require auxiliary tools such as a push rod, has a lower processing cost, has better structural stability, a lower failure rate, and a higher launching efficiency. It is particularly suitable for projectiles whose front sections are difficult to launch, such as spike-shaped or slender ones, or whose front sections are made of non-ferromagnetic materials such as rubber, stainless steel, and brass, as well as projectiles with replaceable front sections, and is not limited to the shape of the projectile. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A front schematic diagram of the electromagnetic launch device of Example 1 is shown;

[0028] Figure 2 The left side schematic diagram of the electromagnetic launch device of Example 1 is shown;

[0029] Figure 3 A schematic diagram of the bottom surface of the electromagnetic launch device of Example 1 is shown;

[0030] Figure 4 The rear schematic diagram of the electromagnetic launch device of Example 1 is shown;

[0031] Figure 5 A schematic diagram showing the electromagnetic launch device of Example 1 launching an object into a launching position;

[0032] Figure 6 A three-dimensional schematic diagram of the coil support of Example 1 is shown;

[0033] Figure 7 A schematic diagram showing the electromagnetic launch device of Example 2 launching an object into a launching position;

[0034] Figure 8 A three-dimensional schematic diagram of the coil support of Example 2 is shown;

[0035] Fig. 9 The left side schematic diagram of the electromagnetic launching device of Example 3 is shown.

[0036] The above drawings include the following reference numerals:

[0037] 1. Track bracket; 11. Launch track; 12. Launch tube; 2. Coil assembly; 3. Coil bracket; 31. Bracket connecting plate; 32. Bracket side plate; 33. Insertion part; 4. Excitation coil; 41. Outer disk; 42. Inner disk; 5. Projectile; 6. Ammunition chain. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] The present invention is further described in detail below in conjunction with specific embodiments, and these embodiments cannot be understood as limiting the scope of protection claimed by the present invention. The term "including" when used indicates the existence of a feature, but does not exclude the existence or addition of one or more other features; the orientation or position relationship indicated by the terms "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0040] In the description, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0041] Embodiment 1:

[0042] The present invention proposes an electromagnetic transmitting device, combined with Figure 1-Figure 4 As shown, it includes a track support 1, a coil group 2 and a coil support 3. The track support 1 is provided with a launching track 11, and the projectile is launched along the launching track 11.

[0043] In the present invention, the launch track 11 can be designed as an integral part with the track bracket 1, or can be designed as a split part so that the launch track 11 is assembled to the track bracket.

[0044] The electromagnetic launch device includes at least one coil group 2, and each coil group 2 includes at least one pair of excitation coils 4 connected in series or in parallel. The coil groups 2 are symmetrically distributed on the left and right sides of the launch track 11. In this embodiment, a pair of excitation coils 4 are symmetrically arranged on the left and right sides of the launch track 11. In some other embodiments, if there are multiple pairs of excitation coils 4, the multiple pairs of excitation coils 4 are symmetrically arranged on the left and right sides of the launch track 11.

[0045] The axial direction of the excitation coil 4 is perpendicular to the direction of the launch track 11. Specifically, the excitation coil 4 includes a coil reel and a winding, the coil reel is vertically set up on the side of the launch track 11, the coil reels on both sides of the launch track 11 are parallel to each other, and an opening is provided on one side of the launch track 11. Specifically, an opening is provided above the launch track 11, and one end of the opening at least extends between the symmetrically distributed coil groups 2, so that the launch track 11 and the coil reels on both sides thereof form a semi-enclosed shape.

[0046] In this embodiment, the upper part of the launching track 11 is of open design and the lower part is of non-open design, that is, the upper part of the part located between the excitation coils 4 on the axis of the launching track 11 is open, so that the projectile can enter between the excitation coils from top to bottom and be received by the launching track 11.

[0047] In other embodiments, smaller or axially offset openings may be designed. For example, most of the area between the excitation coils may not have an opening, while a small area may have an opening, so that one end of the projectile can enter the small area between the excitation coils.

[0048] The coil support 3 is made of magnetic conductive material, preferably, the coil support is made of iron, or other magnetic conductive materials such as silicon steel sheets. The two ends of the coil support 3 are respectively inserted into the axis of the excitation coil 4 on both sides of the launch track 11.

[0049] In this application, it is defined that the projectile is launched from the rear end to the front end of the track bracket 1, and the rear of the track bracket 1 is outside the rear end, and the front of the track bracket 1 is outside the front end. For some types of projectiles, they may be assembled from a non-magnetic or elongated front section and a magnetic rear section, so that the front section of the projectile is close to the front end of the track bracket when launched.

[0050] Combination Figure 5 As shown, the projectile 5 can directly reach the launching position on the launching track 11 from the opening above the track bracket 1, and the opening is located on the opposite side of the launching track 11. At least part of the front section of the projectile 5 located at the launching position is located between the excitation coils 4 on both sides, so that the rear magnetic section of the projectile is closer to the edge of the magnetic field generated by the excitation coil 4, and the projectile is fired from the launching position from a static state under the action of the energized excitation coil 4.

[0051] By setting the position of the coil group and the coil bracket on the launching track, the front section of the projectile can be immersed between the coil groups, so that the rear section of the projectile with magnetic material can be infinitely close to the excitation coil in the launching direction, without the aid of other devices such as a push rod, thereby reducing the length of the gun barrel; and without consuming additional electrical energy, the projectile can be directly launched from the launching position from a zero speed state in the launching direction.

[0052] like Figure 1 As shown, the excitation coil 4 includes a coil drum and a winding wire. The coil drums located on both sides of the transmitting track 11 are parallel to each other. The coil drum includes an inner disk surface 42 close to the transmitting track 11 and an outer disk surface 41 away from the transmitting track. The two side edges of the transmitting track 11 are respectively adjacent to the inner disk surfaces 42 of the excitation coils 4 on both sides.

[0053] Combination Figure 6 As shown, the coil bracket 3 includes bracket side plates 32 located on both sides, and a bracket connecting plate 31 connected between the bracket side plates 32, the bracket side plates 32 cooperate with the outer disk surface 41, and an insertion portion 33 is provided on the bracket side plates 32, and the insertion portion 33 cooperates with the inner surface of the axial center hole of the excitation coil 4.

[0054] Preferably, the end surface of the insertion portion 33 is flush with the inner disk surface 42 of the coil reel, or extends out of the inner disk surface 42. The two sides of the transmitting track 11 are located below the position of the insertion portion 33. The cross-sectional area of ​​the insertion portion 33 occupies at least 20% of the area of ​​the excitation coil 4.

[0055] In other embodiments, the cross-sectional area of ​​the insertion portion 33 occupies at least 30%, 40% or 50% of the area of ​​the excitation coil 4. In some embodiments, the cross-sectional area of ​​the insertion portion 33 occupies 50%-60% of the area of ​​the excitation coil 4, and this ratio achieves a better balance between the coil loss, weight and magnetic flux of the electromagnetic transmitting device.

[0056] By designing the shape of the coil bracket, the coil group can be supported, the structural strength of the electromagnetic launching device can be improved, the magnetic flux can be increased, the magnetic resistance can be reduced, and the direction of the magnetic flux lines can be guided, thereby increasing the magnetic force on the projectile and improving the firing efficiency.

[0057] In the present invention, the "area of ​​the excitation coil" refers to the area enclosed by the radial periphery of the windings in the excitation coil. This embodiment limits the insertion portion 33 to occupy a certain area of ​​the excitation coil 4, thereby enhancing the magnetic flux.

[0058] More preferably, in combination Figure 1 As shown, in this embodiment, the end surface of the insertion portion 33 exceeds the inner disk surface 42, and the end of the insertion portion 33 is engaged with the two side edges of the launch track 11. The bracket connecting plate 31 is located below the launch track 11 and the excitation coil.

[0059] Preferably, the cross-sectional shape of the insertion portion 33 is a polygon. In this embodiment, the cross-sectional shape of the insertion portion 33 is a rectangle. By further designing the shape and size of the insertion portion, the excitation coil is better fixed, and the positional relationship between the coil reel and the track bracket is not hindered, and the passage of the projectile is not hindered.

[0060] Further preferably, the portion of the end surface of the insertion portion 33 that exceeds the inner disk surface 42 can be designed as a curved surface and cooperate with the outer surface of the projectile on the launch track, so that the end surface of the insertion portion 33 can be closer to the projectile.

[0061] In addition, the electromagnetic launch device also includes an induction component and a current control component. The induction component is adjacent to the launch track 11, for example, it can be installed on the track bracket 1 or installed on the rear end of the track bracket 1. The induction component is used to detect whether there is a launch object at the launch position, and feed back the detection result to the current control component. The induction component can use a variety of methods such as light sensing, weight sensing or electromagnetic induction to obtain information on whether there is a launch object at the launch position. The current control component has a signal receiving function and can control the current on and off in the coil group 2 according to the detection feedback of the induction component. Specifically, when it is detected that the launch object 5 leaves the launch position due to being launched, the excitation coil can be immediately powered off through the control of the current control component to prevent the magnetic field generated by the excitation coil from affecting the launch of the launch object; when it is detected that the launch object reaches the launch position, the excitation coil can also be immediately powered on through the current control component to improve the launch efficiency.

[0062] Preferably, combined Figure 1-Figure 4 As shown, the surface of the launch track 11 is set to be a smooth arc surface, and the front end of the track bracket 1 includes a launch tube 12, which is connected to the launch track 11, and the inner surface of the launch tube 12 is matched with the outer surface of the projectile. Further preferably, the inner surface of the launch tube 12 is set to be in clearance with the outer surface of the projectile, so that the projectile can just pass through, and the inner diameter of the launch track 11 is set to be slightly larger than the outer diameter of the projectile, or preferably set to a gradual inner diameter, the farther from the launch tube 12, the larger the inner diameter, so as to limit the launch path of the projectile in the firing state, so that the flight path of the projectile remains centered after being fired.

[0063] In some other embodiments, the projectile is not limited to conventional spherical, cylindrical and other conventional projectiles, but can be nails, darts, bars, blocks, irregular shapes, etc., and any projectile that can be used to be launched by an electromagnetic gun. Therefore, the surface shape of the launch track 11 and the cross-sectional shape of the launch tube 12 can be changed accordingly.

[0064] The left and right sides of the track bracket 1 are respectively connected to the position below the axial hole on the excitation coil 4, which can be a fixed connection or a movable connection. The movable connection is more flexible and convenient to disassemble and assemble.

[0065] Alternatively, an integrated molding solution may be adopted, where the track bracket 1 and the inner disk surface 42 of the coil wire disk on both sides form an integrated structure, so as to improve the structural strength and product production efficiency.

[0066] Preferably, the inner disk surface 42 of the coil drum and the side surface of the track bracket 1 can be fixed by screws, rivets, buckles, etc. This fixing method is flexible and easy to install. In the case of screw fixing, the diameter of the disk surface for installing the screws is slightly larger than the other disk surface to facilitate the installation of fasteners such as screws.

[0067] In addition, the side elevation of the track bracket 1 can be provided with multiple positions for fixing the coil reels, so that the installation position of the coil group or the number of coil groups can be flexibly adjusted according to the length of the projectile to adapt to the projectiles of different front lengths. In addition, the spatial length of the initial position of the projectile in the track bracket can also be changed to adapt to projectiles of different lengths.

[0068] Embodiment 2:

[0069] Combination Figure 7 and Figure 8As shown, the shape and position of the coil support 3 and the setting of the opening on the launch track 11 are different from those in the first embodiment. In order to allow the ammunition chain 6 to be installed on the launch track 11 in the vertical direction, a hole for the ammunition chain 6 to pass through needs to be opened on the launch track. In order to avoid the installation position of the ammunition chain 6, the position of the support connecting plate 31 needs to be moved to the front end of the track support so that it is no longer located below the excitation coil, but it must not hinder the launch of the projectile and other structures of the track support. Therefore, openings are set above and below the launch track 11 of this embodiment so that the ammunition chain 6 can pass through.

[0070] In other embodiments, the number and orientation of the openings of the launch track 11 may also be different.

[0071] For example, in another embodiment, opposite openings may be provided on the left and right sides of the launch track 11, and the excitation coils may be provided at symmetrical positions above and below so that the projectiles may enter between the excitation coils in a horizontal direction.

[0072] For example, in another embodiment, one opening may be disposed at the top, and the other opening may be disposed at a position slightly to the right or slightly to the left of the bottom, so that the direction of the projectile may be guided in a pre-designed direction.

[0073] For example, in another embodiment, three or more openings may be provided: one opening above the launch track 11, one opening below the launch track 11 and slightly to the left, and one opening below the launch track 11 and slightly to the right, so as to guide the different directions of the projectile according to different situations.

[0074] In addition, in other embodiments, the projectiles may be guided by other means other than the bullet chain. For example, in other embodiments, a guide rail or the like disposed inside the launch device may also be used to guide the projectiles to the launch position.

[0075] The other configurations of the electromagnetic launch device of this embodiment are basically the same as those described in Embodiment 1.

[0076] The design of this embodiment allows for the installation of an ammunition belt, thereby improving the firing efficiency.

[0077] Embodiment 3:

[0078] Combination Fig. 9 As shown, the support connecting plate 31 of the coil support 3 is located behind the launch track 11, so that the effect of installing the ammunition chain can be achieved while simplifying the structure of the coil support 3. Accordingly, in this embodiment, openings are also provided above and below the launch track 11. As mentioned above, the number and position of the openings of the launch track 11 may also be different from that of this embodiment.

[0079] In other embodiments, in order to fully utilize the internal space of the launch device, the bracket connecting plate 31 can also be designed at other positions without interfering with the guidance of the projectile, such as being set at a position slightly above the rear of the launch track or slightly below the rear of the launch track.

[0080] The other configurations of the electromagnetic launch device of this embodiment are basically the same as those described in Embodiment 1.

[0081] In summary, from the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0082] 1. The electromagnetic launching device of the present invention arranges the coil group and the coil support at the position of the launching track, so that the front section of the projectile can be immersed between the coil groups, so that the rear section of the projectile with magnetic material can be infinitely close to the excitation coil in the launching direction, without the aid of other devices such as a push rod, thereby reducing the length of the gun barrel and consuming no additional electric energy, so that the projectile can be directly launched from the launching position in the launching direction from a zero speed state.

[0083] 2. The electromagnetic launching device of the present invention can support the coil group and improve the structural strength of the electromagnetic launching device by designing the shape of the coil bracket, and guide the direction of the magnetic flux lines, reduce magnetic resistance, increase magnetic flux, and thus improve the firing efficiency; by further designing the shape and size of the insertion part, it can better fix the excitation coil, and will not hinder the positional relationship between the coil reel and the track bracket, and will not hinder the passage of the projectile.

[0084] 3. The electromagnetic launching device of the present invention is provided with an induction component and a current control component. When it is detected that the launch object leaves the launching position due to being launched, the current control component can immediately cut off the power to the excitation coil to prevent affecting the launch of the launch object. When it is detected that the launch object reaches the launching position, the excitation coil can also be immediately powered on.

[0085] 4. The electromagnetic launch device of the present invention is designed so that the installation position of the excitation coil on the track bracket can be adjusted, so that it can adapt to the launch of projectiles with different front section lengths, making the electromagnetic launch device more applicable to a wider range.

[0086] 5. The electromagnetic launching device of the present invention has a relatively simple structure, does not require auxiliary tools such as a push rod, has a lower processing cost, has better structural stability, a lower failure rate, and a higher launching efficiency. It is particularly suitable for projectiles whose front sections are difficult to launch, such as spike-shaped or slender ones, or whose front sections are made of non-ferromagnetic materials such as rubber, stainless steel, and brass, as well as projectiles with replaceable front sections, and is not limited to the shape of the projectile.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic launch device, characterized in that: The invention comprises a track support (1), a coil group (2) and a coil support (3), wherein the track support (1) is provided with a launch track (11), the coil group (2) comprises at least a pair of excitation coils (4) connected in series or in parallel with each other, the excitation coils (4) are symmetrically distributed on both sides of the launch track (11), and the axial direction of the excitation coil (4) is perpendicular to the direction of the launch track (11); At least one side of the launch track (11) is provided with an opening, and one end of the opening at least extends to between the symmetrically distributed coil groups (2), and the opening can accommodate a launch object (5) passing through to reach a launch position on the launch track (11); The coil support (3) is made of magnetically conductive material, and the two ends of the coil support (3) are respectively inserted into the axial center holes of the excitation coil (4) on both sides of the launch track (11), and the launch object (5) is launched from the launch position under the action of the coil group (2) and the coil support (3).

2. The electromagnetic launch device according to claim 1, characterized in that: The excitation coil (4) comprises a coil drum and a winding wire. The coil drums located on both sides of the transmitting track (11) are parallel to each other. The coil drum comprises an inner disk surface (42) close to the transmitting track (11) and an outer disk surface (41) away from the transmitting track. The two side edges of the transmitting track (11) are respectively adjacent to the inner disk surfaces (42) of the excitation coils (4) on both sides.

3. The electromagnetic launch device according to claim 2, characterized in that: The coil support (3) includes support side plates (32) located on both sides, and a support connecting plate (31) connected between the support side plates (32), the support side plates (32) cooperate with the outer disk surface (41), and an insertion portion (33) is provided on the support side plates (32), and the insertion portion (33) cooperates with the inner surface of the axial center hole of the excitation coil (4).

4. The electromagnetic launch device according to claim 3, characterized in that: The cross-sectional area of ​​the insertion portion (33) occupies at least 20% of the area of ​​the excitation coil (4), and the bracket connecting plate (31) is located below or behind the transmitting track (11).

5. The electromagnetic launch device according to claim 3, characterized in that: The end surface of the insertion portion (33) extends out of the inner disk surface (42) or is flush with the inner disk surface (42), and the two side edges of the launch track (11) are located below the position of the insertion portion (33).

6. The electromagnetic launch device according to claim 5, characterized in that: The end surface of the insertion portion (33) extending out of the inner disk surface (42) is arranged to be a curved surface.

7. The electromagnetic launch device according to any one of claims 1 to 6, characterized in that: The electromagnetic launch device also includes an induction component, which is adjacent to the launch track (11).

8. The electromagnetic launch device according to claim 7, characterized in that: The electromagnetic transmitting device also includes a current control component, which controls the on and off of the current in the coil group (2) according to the detection feedback of the induction component.

9. The electromagnetic launch device according to claim 2, characterized in that: The surface of the launch track (11) is arranged as an arc-shaped surface, the front end of the track bracket (1) comprises a launch tube (12), the launch tube (12) is connected to the launch track (11), and the inner surface of the launch tube (12) matches the outer surface of the projectile.

10. The electromagnetic launch device according to claim 2, characterized in that: The left and right sides of the track bracket (1) are respectively movably connected to the position below the axial hole on the excitation coil (4), so that the installation position of the excitation coil (4) can be adjusted; or, the track bracket (1) and the inner disk surface (42) of the coil reel on both sides thereof form an integrated structure.

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