CN115307486A - Electromagnetic transmitter and electromagnetic transmitter - Google Patents
Electromagnetic transmitter and electromagnetic transmitter Download PDFInfo
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- CN115307486A CN115307486A CN202210846577.9A CN202210846577A CN115307486A CN 115307486 A CN115307486 A CN 115307486A CN 202210846577 A CN202210846577 A CN 202210846577A CN 115307486 A CN115307486 A CN 115307486A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B6/00—Electromagnetic launchers ; Plasma-actuated launchers
- F41B6/006—Rail launchers
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Abstract
The utility model relates to an electromagnetic emission device and electromagnetic emitter, this electromagnetic emission device includes multistage transmission passageway, armature and pulse source, each transmission passageway connects in parallel to the pulse source, each transmission passageway is in on the same straight line, the pulse source is used for providing the electric current for each transmission passageway, the armature starts from first section transmission passageway, moves under the magnetic field effect that the electric current produced, from certain section transmission passageway roll-off back, get into next section transmission passageway, until promoting the target body from terminal transmission passageway roll-off. The device can improve the speed of marking the emission channel by the target body.
Description
Technical Field
The present application relates to the field of electromagnetic emission technology, and in particular, to an electromagnetic emission device and an electromagnetic emitter.
Background
Electromagnetic emission refers to a super-high-speed emission technology in which an object is propelled wholly or partially by electromagnetic force, and an electromagnetic emission method is a necessary development trend of future emission.
In the related art, the electromagnetic emitter includes an emitting channel, an armature and a pulse source, wherein when a current provided by the pulse source flows through the armature, the current converts electric energy into magnetic field energy, and kinetic energy is provided to the target body through the magnetic field energy to push the target body to move along the guide rail, so that the target body is flushed out of the end of the emitting channel at a certain speed.
However, the velocity with which the target body rushes out of the emission channel is small in the related art.
Disclosure of Invention
In view of the above, it is necessary to provide an electromagnetic emitting device and an electromagnetic emitter capable of increasing the speed of the target body punching out of the emitting channel.
In a first aspect, the present application provides an electromagnetic transmitting device, which includes multiple transmitting channels, an armature and a pulse source, wherein each transmitting channel is connected to the pulse source in parallel, and each transmitting channel is located on the same straight line;
the pulse source is used for providing current for each emission channel;
the armature moves from the first section of the launching channel under the action of a magnetic field generated by current, slides out from a certain section of the launching channel, and then enters the next section of the launching channel until the target body is pushed to slide out from the tail end launching channel.
In one embodiment, each section of the launching channel comprises a first guide rail and a second guide rail, and the first guide rail and the second guide rail are arranged in parallel.
In one of the embodiments, the first and second electrodes are,
for each section of the transmitting channel, the pulse source is respectively connected with the starting end of the first guide rail and the starting end of the second guide rail in the transmitting channel.
In one embodiment, the first guide rails of the emission channels of the sections are connected through insulators, and the second guide rails of the emission channels of the sections are connected through insulators.
In one embodiment, the insulator has a width equal to the distance between the first rail and the second rail, and a length less than the length of the armature.
In one embodiment, the cross-sectional shape of the first guide rail and the second guide rail of each firing channel is a square structure or a circular structure, and the cross-sectional shape of the armature moving space between the first guide rail and the second guide rail of each firing channel is a square structure or a circular structure.
In one embodiment, each transmitting channel is connected with the pulse source through a wire; the lead is a coaxial cable or a bus bar.
In one embodiment, the armature is any one of a solid armature, a plasma armature, a solid and plasma hybrid armature; the pulse source is any one of a capacitive energy storage type pulse source, an inductive energy storage type pulse source and a rotary mechanical type pulse source.
In one embodiment, the electromagnetic transmitting device further comprises a primary power supply;
the primary power supply is used to charge the pulse source.
In a second aspect, the present application also provides an electromagnetic transmitter comprising the electromagnetic transmitting apparatus in all the method embodiments of the first aspect.
The electromagnetic transmitting device comprises a plurality of sections of transmitting channels, an armature and a pulse source, wherein the transmitting channels are connected into the pulse source in parallel, the transmitting channels are positioned on the same straight line, the pulse source is used for providing current for the transmitting channels, the armature moves from the first section of transmitting channel under the action of a magnetic field generated by the current, and enters the next section of transmitting channel after sliding out from a certain section of transmitting channel until a target body is pushed to slide out from the tail end of the transmitting channel. The transmitting channel in the device is a multi-section transmitting channel, each section of transmitting channel is connected with a pulse source, in the process that the pulse source provides current for the transmitting channel, along with the movement of an armature in the traditional method, a loop formed by combining the armature and the transmitting channel can be continuously increased, so that loop inductance and resistance are increased, the current provided by the pulse source for the transmitting channel can be quickly reduced, generated thrust can be gradually reduced, the acceleration is gradually reduced in the armature moving process, each section of transmitting channel is connected with the pulse source in the scheme, the area of the loop formed by combining the armature and the transmitting channel cannot be large, the loop impedance is guaranteed to be maintained at a small and moderate level, the load pressure of power supply of the pulse source is reduced, the power supply current is always maintained at a high level, and the transmitting speed of a target body is higher. In addition, the more stable load impedance also reduces the variation range of system parameters, and is beneficial to system design, parameter matching and running state monitoring.
Drawings
FIG. 1 is a block diagram of an electromagnetic transmitting apparatus according to an embodiment;
FIG. 2 is a block diagram of an electromagnetic transmitting device in one embodiment;
FIG. 3 is a block diagram of an electromagnetic transmitting apparatus according to an embodiment;
FIG. 4 is a diagram of a Meat Grinder circuit topology in one embodiment;
FIG. 5 is an XRAM circuit topology in one embodiment.
Description of reference numerals:
1. an electromagnetic emitting device; 11. A transmission channel; 12. An armature;
121. a first guide rail; 122. A second guide rail; 13. A pulse source;
14. a target body; 15. An insulator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
First, before specifically describing the technical solution of the embodiment of the present application, a technical background on which the embodiment of the present application is based is described.
Electromagnetic emission is an ultra-high-speed emission system in which an object is propelled in whole or in part by electromagnetic force, and is called "inevitable development trend of future emission patterns". Electromagnetic emission has the following advantages over traditional target emission: the electromagnetic emission mode is not limited by the stagnation sound velocity, and the speed of sliding the target body out of the emission channel can reach 2km/s or even higher; the single emission cost of electromagnetic emission is only 1/10-1/3 of that of the traditional target body; in the emitting process, the magnetic force borne by the target body can be adjusted in a mode of adjusting the current of the emitter, so that the consistency and controllability of the speed of the electromagnetic emitting target body are better; the target body of the electromagnetic emission has small arc light and low temperature, and the emission base has better concealment.
The traditional electromagnetic transmitting device consists of an initial power supply, a pulse source, a transmitting channel, an armature and a target body, wherein the pulse source is connected with the transmitting channel through a feed bus, the transmitting channel comprises a guide rail, the armature and the target body are arranged in the transmitting channel, the initial power supply is used for providing electric energy for the pulse source, and the pulse source is used for providing current for the transmitting channel and the armature. The transmitting channel can be composed of two parallel long straight guide rails, when the transmitting channel is connected with a power supply, current flows in from one end of the transmitting channel and flows back to a pulse source from the other guide rail through the armature, a strong magnetic field is generated between the planes of the two guide rails, and a target body can slide out from the tail end of the transmitting channel at a high speed under the action of ampere force.
The principle of the electromagnetic emission device includes: the initial power supply supplies current to the pulse source, and converts electric energy into magnetic energy to be stored in the pulse source; the pulse source, the transmitting channel and the armature form a loop, when the pulse source provides current for the transmitting channel, the magnetic energy in the pulse source is converted into electric energy, and the current flows through the lead, the transmitting channel and the armature; the transmitting channel converts the electric energy into magnetic energy, a magnetic field is generated in the transmitting channel, and the armature and the target body are transmitted out by using the ampere force of the interaction between the current of the transmitting channel and the magnetic field. In the process, when the armature is positioned at the starting end of the transmitting channel, the inductance formed by the armature and the transmitting channel is small, and the current provided by the pulse source for the transmitting channel and the armature is large; when the armature moves in the transmitting channel, the inductance formed by the armature and the transmitting channel is gradually increased, and the current provided by the pulse source for the transmitting channel and the armature is gradually reduced; when the armature is positioned at the tail end of the transmitting channel, the inductance formed by the armature and the transmitting channel is the largest, the current provided by the pulse source for the transmitting channel and the armature is the smallest, and the smaller the current is, the smaller the magnetic field generated by the transmitting channel is, namely the thrust to the armature and the target body is, the smaller the acceleration of the armature and the target body is, namely the speed of the target body rushing out from the tail end of the transmitting channel is smaller.
In the traditional method, in the process that the pulse source provides current for the transmitting channel, along with the movement of the armature, a loop formed by the combination of the armature and the transmitting channel is continuously increased, so that the loop inductance and resistance are increased, the current provided by the pulse source for the transmitting channel is rapidly reduced, the generated thrust is gradually reduced, and the transmitting speed is not high enough. In addition, the inductance resistance of the transmitting loop is greatly changed, and the parameter matching design of the pulse source is not facilitated.
Therefore, in view of the above problems, the following describes a technical solution related to the embodiment of the present application with reference to a scenario in which the embodiment of the present application is applied.
In one embodiment, as shown in fig. 1, fig. 1 shows an electromagnetic emission device 1, where the electromagnetic emission device 1 includes multiple emission channels 11, an armature 12, and a pulse source 13, each emission channel 11 is connected in parallel to the pulse source 13, each emission channel 11 is on the same straight line, the pulse source 13 is configured to provide current to each emission channel 11, and the armature 12 moves from a first emission channel under the action of a magnetic field generated by the current, slides out from a certain emission channel, enters a next emission channel, and slides out from a tail emission channel until a target 14 is pushed.
According to different energy storage principles, the pulse source comprises a capacitive type pulse source, an inductive type pulse source and a rotating mechanical type pulse source, and the pulse source is used for providing current for the armature and ensuring the normal operation of the target body in the emission process. For example, the target may be a projectile, and if there is no target before the armature during firing, the armature is targeted. The inductive type pulse source is an important type of pulse source because of its good energy density and power density. The basic principle of the inductive pulse source is as follows: the primary power source provides electric energy for the inductive pulse source, after the inductive pulse source is charged, the electric energy is stored in the inductive pulse source in a magnetic energy mode, when the inductive pulse source provides current for the armature and the transmitting channel, the internal magnetic energy is converted into the electric energy to provide the current for the armature and the transmitting channel through a certain switching method, and therefore the pulse source can be the inductive pulse source.
The multiple firing channels are in the same line and function to conduct current from the pulse source and to guide the armature and target to move from the initial end of the first firing channel to the end of the last firing channel. The interval between each transmitting channel needs to be smaller than the length of the armature, the structure of the plurality of transmitting channels can be a square structure, a circular structure or other structures, and the shape and the structure of each transmitting channel are not limited in this embodiment. The armature is located in the firing channel, and during firing of the target, the armature and the target move simultaneously, the armature being formed of an electrically conductive material. For example, the armature may be composed of solid metal, or the armature may be composed of plasma, or the armature may be composed of a mixture of solid metal and plasma. The target and the armature are both located in the firing channel, with the target being disposed in a forward position of the armature. The target body may be of different shapes and materials depending on the purpose. Optionally, the inside of the target body in the electromagnetic emitting device is filled with high-quality steel, the surface of the target body is made of a layer of high-strength aluminum alloy material, and the target body of the electromagnetic emitting device is larger in size and weight compared with a common target body. The armature in the electromagnetic transmitting device is arranged in the same transmitting channel, the pulse source, the transmitting channel and the armature are combined into a passage, the current provided by the pulse source flows through the feed bus, the transmitting channel and the armature, and when the current flows through the transmitting channel, a magnetic field is generated on the transmitting channel.
Specifically, when the armature is located in the first section of the launching channel, the pulse source, the first section of the launching channel and the armature form a passage, the pulse source firstly provides current for the first section of the launching channel, a magnetic field generated by the first section of the launching channel interacts with the current flowing through the armature to push the armature and the target body to move in the first section of the launching channel, the acceleration of the armature and the target body in the first section of the launching channel in the process of just starting to move is initial acceleration, and the acceleration is smaller and smaller when the armature and the target body move in the first section of the launching channel.
Further, it can be understood that when the armature and the target body move to the joint of the first section of the transmitting channel and the second section of the transmitting channel, as the contact area between the armature and the second section of the transmitting channel is larger and smaller, the contact area between the armature and the first section of the transmitting channel is smaller and smaller, the current flowing through the first section of the transmitting channel is gradually converted into the second section of the transmitting channel, when the armature is positioned in the first section of the transmitting channel, the pulse source, the second section of the transmitting channel and the armature form a passage, the acceleration of the armature and the target body in the second section of the transmitting channel during the initial moving process is slightly smaller compared with the initial acceleration, and the acceleration is smaller and smaller when the armature and the target body move in the second section of the transmitting channel.
In the process that the armature and the target body move in each section of the launching channel, the acceleration is gradually reduced in each section of the launching channel, when the armature and the target body move to the next section of the launching channel, the acceleration is gradually reduced from the larger acceleration, if N sections of the launching channels are provided, the acceleration is gradually reduced from the initial acceleration in one period, and after the first period is completed, the speed of the target body rushing out of the first launching channel is V 1 (ii) a In the second cycle, the initial speed is V 2 The initial acceleration is the same as the initial acceleration in the first period, and after the second period is finished, the speed of the target body rushing out of the second emission channel is V 3 (ii) a By analogy, the speed of the target body rushing out of the Nth emission channel is V n . In the conventional method, the acceleration of the movement of the armature and the target is reduced until the target slides out of the end of the firing channel due to the longer distance of the firing channel of the electromagnetic emitting device. For example, the initial acceleration during the movement of the armature and the target body in the conventional method is 10km/s 2 The acceleration of the target moving to the end of the transmitting channel is 4km/s 2 In the application, the transmitting channel is divided into 3 sections, and the acceleration of the transmitting channel at the first section is 10km/s 2 Gradually reduced to 8km/s 2 When the armature and the target body move to the second section of the launching channel, the initial acceleration of the second section of the launching channel is 9.8km/s 2 The acceleration of the second section of the transmitting channel is 9.8km/s 2 Gradually reduced to 7.8km/s 2 Of 1 atThe acceleration of the three transmitting channels is also 9.6km/s 2 Gradually reduced to 7.6km/s 2 Compared with the traditional method, the target body of the electromagnetic emission device in the application slides out of the tail end of the emission channel at a higher speed.
The electromagnetic emission device comprises a plurality of sections of emission channels, an armature and a pulse source, wherein each emission channel is connected into the pulse source in parallel, each emission channel is positioned on the same straight line, the pulse source is used for providing current for each emission channel, the armature moves under the action of a magnetic field generated by the current from the first section of emission channel, and enters the next section of emission channel after sliding out from a certain section of emission channel until a target body is pushed to slide out from the tail end emission channel. The transmitting channel in the device is a multi-section transmitting channel, each section of transmitting channel is connected with a pulse source, in the process that the pulse source provides current for the transmitting channel, along with the movement of an armature in the traditional method, a loop formed by combining the armature and the transmitting channel can be continuously increased, so that loop inductance and resistance are increased, the current provided by the pulse source for the transmitting channel can be quickly reduced, generated thrust can be gradually reduced, and the acceleration is gradually reduced in the moving process of the armature. Meanwhile, the more stable load impedance also reduces the variation range of system parameters, and is beneficial to system design, parameter matching and running state monitoring.
In one embodiment, as shown in fig. 2, each section of firing channel 11 includes a first rail 111 and a second rail 112, and the first rail 111 and the second rail 112 are disposed in parallel.
Specifically, each section of the launching channel in the electromagnetic launching device comprises two guide rails, the two guide rails can be of a square structure or a circular structure, the armature and the target body are arranged between the first guide rail and the second guide rail, the distance between the first guide rail and the second guide rail should be greater than or equal to the length of the armature, and under the action of a magnetic field generated by the first guide rail and the second guide rail, the armature and the target body can move from the initial ends of the first guide rail and the second guide rail to the tail ends of the first guide rail and the second guide rail.
Each section of emission channel in the electromagnetic emission device comprises a first guide rail and a second guide rail, and the first guide rail and the second guide rail are arranged in parallel. Each section of launching channel in the electromagnetic launching device comprises two guide rails, so that the armature and the target body are restrained by the first guide rail and the second guide rail in the horizontal direction, and the first guide rail and the second guide rail are arranged in parallel, so that the target body can smoothly slide out of the tail end guide rail.
In one embodiment, as shown in fig. 2, for each segment of the firing channel 11, the pulse source 13 is connected to the beginning of the first rail 111 and the beginning of the second rail 112 in the firing channel 11, respectively.
Specifically, the pulse source comprises a positive electrode and a negative electrode, in the process of providing current for the emission channel and the armature through the pulse source, the current flows out of the positive electrode of the pulse source, flows through the lead, the first guide rail, the armature, the second guide rail and the lead, and flows into the pulse source from the lead, and the pulse source, the lead, the first guide rail, the armature and the second guide rail form a loop. When the armature is positioned at the starting end of the first section of the transmitting channel, the inductance formed by the armature, the first guide rail and the second guide rail is small, and the current provided by the pulse source for the first section of the transmitting channel is large; along with the continuous movement of the armature in the first section of the transmitting channel, the inductance formed by the armature, the first guide rail and the second guide rail is gradually increased, and at the moment, the current provided by the pulse source for the second section of the transmitting channel is gradually reduced; the inductance formed by the armature, the first guide rail and the second guide rail is the largest when the armature is at the end position of the first section of the transmitting channel, and the current provided by the pulse source for the first section of the transmitting channel is the smallest at the moment. In the first section of the transmitting channel, as the current provided by the pulse source is smaller and smaller, the magnetic field generated by the transmitting channel is smaller and smaller, the thrust generated by the interaction of the magnetic field and the current is gradually reduced, and the acceleration generated by the thrust is smaller and smaller. The acceleration of the armature moving in each section of the launching channel is smaller and smaller, and after the armature and the target body pass through each section of the launching channel, the target body slides out from the tail end of the last section of the launching channel at a certain speed.
In each section of the transmitting channel in the electromagnetic transmitting device, the pulse source is respectively connected with the starting end of the first guide rail and the starting end of the second guide rail in the transmitting channel, a loop can be formed among the pulse source, the first guide rail, the armature and the second guide rail, and current generated by the pulse source flows through the first guide rail, the armature and the second guide rail, so that the transmitting channel generates a magnetic field to provide thrust for the armature and a target body.
In one embodiment, as shown in fig. 3, the first guide rails 111 of the length of firing channels 11 are connected by the insulator 15, and the second guide rails 112 of the length of firing channels are connected by the insulator 15.
Specifically, the first guide rail and the second guide rail of each section of the launching channel are connected through an insulator. The insulator can be made of plastic, rubber, glass or ceramic, the length of the insulator is smaller than that of the armature, and when the armature and the target body move to the joint of the upper-section launching channel and the lower-section launching channel, as the contact area of the armature and the lower-section launching channel is larger and smaller, the current is transferred from the upper-section launching channel to the lower-section launching channel.
The first guide rails of each section of the emission channel in the electromagnetic emission device are connected through insulators, and the second guide rails of each section of the emission channel are connected through insulators. The launching channels are connected through the insulator, so that mutual independence among the launching channels is guaranteed, when the armature runs to a certain channel, the pulse source and the armature form a loop, the armature and the target body are guaranteed to keep high acceleration in the running process, the acceleration of the armature and the target body in each launching channel is linearly reduced, and the speed of the target body sliding out of the last launching channel is improved.
In one embodiment, the width of the insulator 15 is equal to the distance between the first rail 121 and the second rail 122, and the length of the insulator 15 is less than the length of the armature.
Specifically, the width of the insulator between the firing channels is the distance between the first guide rail and the second guide rail, so that the armature can smoothly move from the previous firing channel to the next firing channel. The length of the insulator between the launching channels is the distance between the previous launching channel and the next launching channel, and the distance needs to be smaller than the length of the armature, so that when the armature moves from the previous launching channel to the next launching channel, the current can be directly transferred from the previous launching channel to the next launching channel, and the armature and the target body can normally move in the launching channels.
The width of the insulator in the electromagnetic transmitting device is equal to the distance between the first guide rail and the second guide rail, and the length of the insulator is smaller than that of the armature. The electromagnetic emission device limits the width and the length of the insulator between each section of emission channel, and avoids the condition that an armature cannot slide from the previous section of emission channel to the next section of emission channel.
In one embodiment, the cross-sectional shape of the first guide rail 121 and the second guide rail 122 of each of the firing channels 12 is a square structure or a circular structure, and the cross-sectional shape of the armature moving space between the first guide rail 121 and the second guide rail 122 of each of the firing channels 12 is a square structure or a circular structure.
Optionally, when the emission channels are square structures, the cross-sectional shape of the armature movement space between the first guide rail and the second guide rail of each emission channel is a square structure, each emission channel section is composed of two guide rails of a square structure, the distance between the two guide rails of a square structure is slightly greater than the width of the armature, and the pulse source and the armature are combined with the emission guide rail of each section of a square structure to form a loop. Optionally, when the emission channels are circular structures, the cross-sectional shape of the armature movement space between the first guide rail and the second guide rail of each emission channel is a circular structure, each section of emission channel is composed of two guide rails of a circular structure, the distance between the two guide rails of a circular structure is slightly greater than the width of the armature, and the pulse source and the armature are combined with the emission guide rail of each section of circular structure to form a loop.
The cross section shapes of the first guide rail and the second guide rail of each transmitting channel in the electromagnetic transmitting device are in a square structure or a circular structure, and the cross section shape of the armature moving space between the first guide rail and the second guide rail of each transmitting channel is in a square structure or a circular structure. Each emission channel in the electromagnetic emission device can be of a square structure or a circular structure, and the cross section of the armature motion space between the first guide rail and the second guide rail of each emission channel is of a square structure or a circular structure, so that the device can be suitable for emission channels of different structures, and the speed of the target body sliding out of the last emission channel can be increased for emission channels of different structures.
In one embodiment, each transmitting channel 12 is connected to the pulse source 11 through a wire, which is a coaxial cable or a bus bar.
Specifically, the pulse source is connected in parallel with each segment of the transmitting channel, optionally, the starting end of each transmitting channel may be connected in parallel with the pulse source through a coaxial cable, so as to reduce the loop impedance. Alternatively, a common bus bar may be used to connect the start of each firing channel in parallel with the pulse source.
Alternatively, each transmitting channel may be a guide rail, and the electromagnetic transmitting device is an electromagnetic guide rail device, and the guide rail includes a pair of parallel metal guide rails, the distance between the two metal guide rails is the width of the armature, and the two metal guide rails are good conductors, so that the current provided by the inductive pulse source flows through the two metal guide rails and the armature. At the same time, the material of the two metal rails needs to be resistant to ablation and wear and to have good mechanical strength. Two metal guide rails may be mounted in a high strength composite insulating cylinder forming a firing channel. Optionally, the shape of the transmitting channel may be a square structure, the transmitting channel is composed of two guide rails of the square structure, the distance between the two guide rails of the square structure is slightly greater than the width of the armature, and the pulse source and the armature are respectively combined with the transmitting guide rails of the square structure to form a loop. Optionally, the shape of the transmitting channel may be a circular structure, the transmitting channel is composed of two guide rails of the circular structure, the distance between the two guide rails of the circular structure is slightly larger than the width of the armature, and the pulse source and the armature are respectively combined with the transmitting guide rails of the circular structure to form a loop.
Each transmitting channel in the electromagnetic transmitting device is connected with the pulse source through a lead which is a coaxial cable or a bus bar, so that current generated by the pulse source can flow through each transmitting channel and the armature through the lead, each transmitting channel converts the current into a magnetic field, and the armature pushes the armature and the target body to move in each transmitting channel under the interaction of the current and the magnetic field of the transmitting channel, so that the armature and the target body are guaranteed to move to the tail end of the last transmitting channel under the action of the current and the magnetic field.
In one embodiment, the armature in the electromagnetic emission device is any one of a solid armature, a plasma armature, and a solid and plasma mixed armature, and the pulse source in the electromagnetic emission device is any one of a capacitive energy storage type pulse source, an inductive energy storage type pulse source, and a rotating mechanical type pulse source.
Specifically, the armature in the electromagnetic emission device is mainly composed of a conductive substance, the solid metal and the plasma are good conductive substances, the armature composed of the solid metal is a solid armature, the armature composed of the plasma is a plasma armature, the armature composed of the solid metal and the plasma is a mixed armature, and the solid armature, the plasma armature and the solid and plasma mixed armature all have good conductivity. According to different energy storage principles, the pulse source can be divided into any one of a capacitive energy storage type pulse source, an inductive energy storage type pulse source and a rotary mechanical type pulse source.
The armature in the electromagnetic transmitting device is any one of a solid armature, a plasma armature and a solid and plasma mixed armature, and the pulse source in the electromagnetic transmitting device is any one of a capacitive energy storage type pulse source, an inductive energy storage type pulse source and a rotating mechanical type pulse source. The armature and the pulse source in the device can be of various types, and the electromagnetic transmitting device has a wide application range.
Specifically, the guide rails on the transmitting channel comprise a pair of parallel metal guide rails, the distance between the two metal guide rails is the width of the armature, and the two metal guide rails are good conductors, so that current provided by the inductive pulse source flows through the two metal guide rails and the armature. At the same time, the material of the two metal rails needs to be resistant to ablation and wear and to have good mechanical strength. Two metal guide rails may be mounted in a high strength composite insulating cylinder forming a firing channel.
The emission channel in the electromagnetic emission device is a guide rail, namely, the target body can slide out through the guide rail, and the sliding-out angle of the target body can be flexibly controlled through the guide rail.
In one embodiment, the electromagnetic transmission means further comprise a primary power supply for charging the pulse source 11.
Specifically, according to the difference of energy storage principles, the pulse source can be divided into any one of a capacitive energy storage type pulse source, an inductive energy storage type pulse source and a rotary mechanical type pulse source, when the pulse source is the inductive energy storage type pulse source, a primary power supply provides electric energy for the inductive energy storage type pulse source, after the pulse source is charged, the electric energy is stored into the pulse source in a magnetic energy mode, and when the pulse source provides current for the armature and the transmitting channel, the internal magnetic energy is converted into the electric energy to provide current for the armature and the transmitting channel through a certain switching method.
According to the difference of the switching method, the topology of the pulse source can be divided into two main types, namely a Meat Grinder type circuit and an XRAM type circuit, and FIG. 4 is a topological diagram of the Meat Grinder type circuit, and U in the diagram S Is a primary power supply, L 1 And L 2 Is an energy storage inductor, L 1 And L 2 Are strongly coupled with each other, S is a main switch, D 1 Is a load diode, R l And L l Is an equivalent load. Energy storage inductor L in the figure 1 And L 2 Main switch S and load diode D 1 The combination is used as a pulse source, the main switch S is firstly conducted in the process that the primary power supply is used for charging the inductive pulse power supply, and the primary power supply U S For an energy-storing inductor L 1 And L 2 Charging, then the main switch S is switched off, and the energy storage inductor L 1 The current is forced to be reduced to zero when the current loop is lost, and the energy storage inductor L 1 And L 2 The stored energy is instantaneously transferred to L 2 In (1), making L 2 The current is increased suddenly, and the primary power supply supplies powerThe flow is converted into magnetic energy and stored in a pulse source.
FIG. 5 is an XRAM circuit topology, U S Is a primary power supply, (L) 1 ，L 2 ，…，L n ) Is an energy storage inductor, S is a main switch, and (S) 1 ，S 2 ，…，S n ) Is a switch (D) 11 ，D 12 ，…，D n1 ，D n2 ) Is a load diode, R l And L l Is an equivalent load. Energy storage inductor (L) in the figure 1 ，L 2 ，…，L n ) Main switch S, switch (S) 1 ，S 2 ，…，S n ) And a load diode (D) 11 ，D 12 ，…，D n1 ，D n2 ) In combination as a pulse source, the primary power supply is switched on and off during charging of the inductive pulse power supply 1 ，S 2 ，…，S n ) First conducted, primary power supply U S For energy-storage inductance (L) 1 ，L 2 ，…，L n ) Charging, then switching (S) 1 ，S 2 ，…，S n ) And when the primary power supply is disconnected, the main switch S is switched on, the energy storage inductors are connected in series through the diodes to discharge to the load, current multiplication is realized in a mode of serial charging and parallel discharging of the inductors, and the primary power supply converts the current into magnetic energy and stores the magnetic energy into the pulse source.
In one embodiment, an electromagnetic transmitter is provided. The electromagnetic transmitter may comprise an electromagnetic transmitter.
Specifically, according to the ideal speed of the target body sliding out of the transmitting channel, the guide rail in the pulse electromagnetic transmitter is divided into a plurality of equal transmitting channels, and each transmitting channel is connected with the pulse source in parallel. The initial power supply supplies current to the pulse source, and converts electric energy into magnetic energy to be stored in the pulse source; the pulse source, the guide rail and the armature form a loop, when the pulse source provides current for the guide rail, part of magnetic energy in the pulse source is converted into electric energy, and the current flows through the lead, the guide rail and the armature; the guide rail converts the electric energy into magnetic energy to generate a magnetic field in the guide rail, the magnetic energy in the guide rail and the magnetic energy left in the pulse source jointly act to generate ampere force to move the armature and the target body from the initial end of the guide rail to the tail end of the guide rail, and the target body is emitted from the tail end of the guide rail at a certain speed. For example, the electromagnetic emitter may be an electromagnetic square rail guide, or an electromagnetic circular rail guide.
The electromagnetic emitter can divide the guide rail into the plurality of guide rails, the plurality of guide rails are connected with the pulse source in parallel, each section of guide rail is connected with the pulse source, the area of a loop formed by combining the armature and the emitting channel is moderate and cannot be large, the impedance of the loop is guaranteed to be maintained at a small level, the load pressure of the pulse source for power supply is reduced, the power supply current is always maintained at a high level, and the emitting speed of a target body is higher.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. An electromagnetic emission device is characterized by comprising a plurality of sections of emission channels, an armature and a pulse source, wherein the emission channels are connected in parallel to the pulse source, and are positioned on the same straight line;
the pulse source is used for providing current for each transmitting channel;
the armature moves from the first section of the launching channel under the action of a magnetic field generated by current, and after slipping out from a certain section of the launching channel, the armature enters the next section of the launching channel until pushing the target body to slip out from the tail end launching channel.
2. The electromagnetic emitting device of claim 1, wherein each segment of the emission channel includes a first rail and a second rail, the first rail and the second rail being disposed in parallel.
3. The electromagnetic launching device of claim 2, wherein for each launch channel, the pulse source is connected to the beginning of the first rail and the beginning of the second rail in the launch channel, respectively.
4. The electromagnetic transmitter of claim 2, wherein the first rails of the transmitter channels of each segment are connected to each other by an insulator, and the second rails of the transmitter channels of each segment are connected to each other by an insulator.
5. The electromagnetic transmitting device of claim 4, wherein the insulator has a width equal to a distance between the first and second guide rails and a length less than a length of the armature.
6. The electromagnetic transmitter according to claim 3, wherein the first guide rail and the second guide rail of each of the transmitting passages have a square configuration or a circular configuration in cross-sectional shape, and the armature moving space between the first guide rail and the second guide rail of each of the transmitting passages has a square configuration or a circular configuration in cross-sectional shape.
7. The electromagnetic transmitting device of claim 1, wherein each of the transmitting channels is connected to the pulse source by a wire; the lead is a coaxial cable or a bus bar.
8. The electromagnetic emitting device of claim 1, wherein the armature is any one of a solid armature, a plasma armature, a solid and plasma hybrid armature; the pulse source is any one of a capacitive energy storage type pulse source, an inductive energy storage type pulse source and a rotary mechanical type pulse source.
9. The electromagnetic transmitting device of claim 1 further comprising a primary power source;
the primary power supply is used for charging the pulse source.
10. An electromagnetic transmitter, characterized in that it comprises an electromagnetic transmitting device as claimed in any one of claims 1 to 9.
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| CN202210846577.9A CN115307486A (en) | 2022-07-19 | 2022-07-19 | Electromagnetic transmitter and electromagnetic transmitter |
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| CN202210846577.9A CN115307486A (en) | 2022-07-19 | 2022-07-19 | Electromagnetic transmitter and electromagnetic transmitter |
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