An electric propulsion device using internal current to enhance magnetic field

Abstract

The present invention provides an electric propulsion device that uses internal current to enhance the magnetic field, including two pairs of comb-shaped electrodes and a dielectric layer filled between the two, positive and negative conductive strips, a control switch, ammunition, and an external circuit; wherein the teeth of the two pairs of comb-shaped electrodes are interlaced and located on the left and right sides of the positive and negative conductive strips, respectively, and the space between the teeth is filled with dielectric material. The ammunition is located between the two conductive strips, at the starting end, the ammunition shell is a metal conductive material and is in contact with both conductive strips, the positive and negative poles of the left and right comb-shaped electrodes are in opposite front and back positions, the external circuit applies a high voltage between the positive and negative comb-shaped electrodes, so that the positive pole of the comb-shaped electrode is positively charged and the negative pole of the comb-shaped electrode is negatively charged, the control switch is closed, and the magnetic field generated by the internal current is superimposed on the current of the ammunition with a metal shell, and the generated Ampere force drives the ammunition forward. Compared with traditional orbital propulsion, the present invention has higher thrust and efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of electromagnetic propulsion, and in particular relates to an electric propulsion device that utilizes internal current to enhance the magnetic field. Background Art

[0002] Traditional electric propulsion devices using pulse power capacitors as power sources, whether they are rail-type or coil-type, or a combination of the two, structurally speaking, are capacitors discharging to inductive loads, and the capacitors and inductors are separated in the circuit. Theoretically, their energy utilization rate is no more than 50%. In addition, they all require the manufacture of dedicated electric propulsion launchers (refer to Chinese patent applications: CN202021196243.4, CN202010569204.2, CN202011137713.4, CN201911125538.4, etc.) and dedicated armatures carrying ammunition or warheads (refer to Chinese patent applications: CN202010596960.4, CN201910481562.5, CN201920073564.6, etc.), and the launchers and energy storage elements are separate parts. Generally, pulse power capacitors are used as power sources. Electrons move from the negative electrode of the capacitor through the load to the positive electrode. The current formed during the movement of electrons inside the electrode film can be called internal current. The internal current generates a large amount of invalid energy loss inside the capacitor, reducing the overall operating efficiency. The current capacitor as an independent power source cannot utilize this part of energy. It can only generate Joule heat loss and electromotive force inside the capacitor, which limits the charging and discharging frequency of the capacitor. The entire capacitor also needs to strengthen the shell to overcome the electromotive force. In addition, if the existing technical solution is track-type, in order to increase the exit speed without increasing the primary length, either increase the number of pulse power supplies, add special auxiliary tracks or coils that generate background magnetic fields above and below (or on both sides) the main track, which increases the complexity of the structure; or increase the voltage of the pulse power supply, which increases the insulation strength requirements of the entire propulsion system caused by the increased voltage. Summary of the invention

[0003] In order to solve the technical problem that the pulse power capacitor of the existing orbital electromagnetic propulsion is an independent module and requires a special back-field track or coil, the present invention provides an electric propulsion device that uses internal current to enhance the magnetic field, simplifies the structure of the existing orbital electric thruster, improves the system operation efficiency, and theoretically can break through the 50% upper limit of traditional orbital electric thrusters.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] An electric propulsion device that uses internal current to enhance the magnetic field, including two pairs of comb electrodes, two conductive strips in the middle and an external circuit; the two pairs of comb electrodes are a left rear comb electrode, a right rear comb electrode, a right front comb electrode and a left front comb electrode, and the two conductive strips are a right conductive strip and a left conductive strip; an ammunition with a metal conductive shell is located at the starting end and is located in the middle of and in contact with the right conductive strip and the left conductive strip; between the teeth of the left rear comb electrode and the left front comb electrode, and between the teeth of the right rear comb electrode and the right front comb electrode, are filled with dielectric material; the left rear comb electrode and the right front comb electrode are a group in terms of potential, first interconnected and then connected to the right conductive strip; the left front comb electrode and the right rear comb electrode are a group in terms of potential, first interconnected and then connected to the left conductive strip; a control switch is set between any group of comb electrodes and the connected conductive strip; the external circuit is used to apply a high voltage between the two groups of comb electrodes.

[0006] Furthermore, the teeth of the left rear comb-shaped electrode and the left front comb-shaped electrode, and the right rear comb-shaped electrode and the right front comb-shaped electrode are interlaced with each other and are respectively located on the left and right sides of the two conductive strips.

[0007] Furthermore, the positive and negative electrodes of the left and right comb electrodes are in opposite positions, wherein the positive electrode of the comb electrode is adjacent to the positive conductive strip on one side of the starting end, and the positive electrode of the comb electrode on the other side is adjacent to the negative conductive strip at the exit end; the positive electrodes of the comb electrodes on both sides are connected to the positive conductive strip, and the negative electrodes of the comb electrodes on both sides are connected to the negative conductive strip. The teeth are filled with dielectric material. The ammunition is located between the two conductive strips at the starting end, and the ammunition shell is a metal conductive material and is in contact with the two conductive strips.

[0008] Furthermore, the control switch is located between any group of comb electrodes and conductive strips, that is, between the positive electrode of the comb electrode and the positive conductive strip, or between the negative electrode of the comb electrode and the negative conductive strip.

[0009] Furthermore, the control switch is in an off state, and an external circuit applies a high voltage between the positive and negative comb electrodes, so that the positive electrode of the comb electrode is positively charged and the negative electrode of the comb electrode is negatively charged. After the voltage reaches the rated value, the control switch is closed, and the magnetic field generated by the internal current is superimposed on the current of the ammunition with a metal conductive shell, and the generated Ampere force drives the ammunition forward.

[0010] Furthermore, the positive and negative polarities of the two groups of comb-shaped electrodes can be interchanged.

[0011] The advantages of the present invention compared with the prior art are:

[0012] (1) The present invention integrates the pulse power energy storage device, the primary orbital thruster and its mechanical reinforcement structure, and integrates them into one component while having basic functions such as energy storage, propulsion, and structural reinforcement, thereby reducing the system complexity, volume, and weight; its design scheme of integrating the pulse power capacitor and the primary thruster simplifies the structure of the existing orbital electric thruster and improves the system operation efficiency. In theory, it can break through the 50% upper limit of traditional orbital electric thrusters.

[0013] (2) As the charges move inside the comb-shaped electrodes, the magnetic field generated by the internal current is superimposed on the ammunition between the positive and negative conductive strips, interacting with the current in the metal shell of the ammunition. The additional Ampere force drives the ammunition to accelerate forward, which has greater propulsion force and operating efficiency than existing orbital electric thrusters.

[0014] (3) The device of the present invention has a simple structure and can be adapted to existing conventional gunpowder projectile propulsion devices through a deformed design to form compatibility. After one propulsion action, the energy storage component, i.e., the comb-shaped electrode, can be recharged and new ammunition can be loaded inside to achieve rapid repeated propulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the spatial position relationship between two pairs of comb-shaped electrodes, conductive strips and ammunition of the present invention;

[0016] Figure 2 A schematic top view of two pairs of comb-shaped electrodes, conductive strips and ammunition of the present invention, particularly showing the potential relationship between the various components;

[0017] Figure 3 Schematic diagram of the spatial posture deformation of the comb-shaped electrode of the present invention;

[0018] Figure 4 Schematic diagram of the spatial shape deformation of the comb-shaped electrode of the present invention;

[0019] In the figure: 1. Left rear comb electrode; 2. Right rear comb electrode; 3. Right front comb electrode; 4. Left front comb electrode; 5. Right conductive strip; 6. Left conductive strip; 7. Ammunition. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] The present invention is an electric propulsion device that utilizes internal current to enhance the magnetic field. Figure 1As shown, the electric propulsion device includes two pairs of comb electrodes, namely: left rear comb electrode 1, right rear comb electrode 2, right front comb electrode 3 and left front comb electrode 4, and two conductive strips located in the middle, namely right conductive strip 5 and left conductive strip 6, and ammunition 7 with a metal shell is located in the middle of the right conductive strip 5 and the left conductive strip 6 and is in contact with the right conductive strip 5. The teeth of the left rear comb electrode 1 and the left front comb electrode 4, the right front comb electrode 3 and the right rear comb electrode 2 are interlaced with each other, and are located on the left and right sides of the right conductive strip 5 and the left conductive strip 6 respectively. Between the teeth, dielectric material is filled.

[0022] like Figure 2 As shown, the above parts are connected by wires according to the following corresponding relationship: the left rear comb electrode 1 is connected to the starting end of the right conductive strip 5, the right rear comb electrode 2 is connected to the starting end of the left conductive strip 6, the left front comb electrode 4 is connected to the starting end of the left conductive strip 6, and the right front comb electrode 3 is connected to the starting end of the right conductive strip 5. That is, the left rear comb electrode 1 and the right front comb electrode 3 are a group in terms of potential, called group A, which are first interconnected and then connected to the right conductive strip 5; similarly, the left front comb electrode 4 and the right rear comb electrode 2 are a group in terms of potential, called group B, which are first interconnected and then connected to the left conductive strip 6. A control switch is added between any group of comb electrodes and the connected conductive strips.

[0023] Initially, the control switch is in the off state, and the external circuit (not shown) applies a high voltage between the two groups of comb electrodes A and B. The relationship between the positive and negative poles of the high voltage and the groups A and B is not limited. Here, it is assumed that the group A is the positive pole and the group B is the negative pole. After the voltage reaches the rated value, the teeth of the group A, that is, the left rear comb electrode 1 and the right front comb electrode 3, are positively charged, while the teeth of the group B, that is, the left front comb electrode 4 and the right rear comb electrode 2, are negatively charged. An electric field is formed in the dielectric material between the teeth of the left rear comb electrode 1 and the left front comb electrode 4, and between the teeth of the right rear comb electrode 2 and the right front comb electrode 3, and energy is stored. Then, the control switch is closed, and the charges between the group A and the group B move to neutralize each other, forming a current in the loop. Among them, the positive charge of the left rear comb electrode 1 moves backward (here the starting end is the rear and the exit is the front), and the negative charge of the left front comb electrode 4 moves forward. The two are macroscopically manifested as a forward current. Similarly, the charge movement in the right rear comb electrode 2 and the right front comb electrode 3 is macroscopically manifested as a backward current, forming a magnetic field perpendicular to the paper surface between the right conductive strip 5 and the left conductive strip 6. This magnetic field is superimposed on the magnetic field formed by the current in the right conductive strip 5 and the left conductive strip 6 at the same position, and is in the same direction. The metal shell of the ammunition 7 is in contact with the right conductive strip 5 and the left conductive strip 6, and the current therein interacts with the aforementioned superimposed magnetic field to generate an Ampere force from the back to the front, pushing the ammunition 7 to accelerate. After a round of ammunition 7 flies out of the exit, the control switch is disconnected, and the next round of ammunition 7 is loaded, and the above charging and discharging process is repeated to achieve continuous multiple propulsion.

[0024] The positive and negative polarities of the two groups of comb-shaped electrodes A and B can be swapped during operation without affecting the operation of the system.

[0025] It can be seen that the electric propulsion device of the present invention integrates the traditional energy storage capacitor and orbital thruster into one part. At the same time, during the movement of charges on the two groups of comb-shaped electrodes A and B, the magnetic field formed by the internal current and the magnetic field formed by the right conductive strip 5 and the left conductive strip 6 produce an additional superposition effect, which improves the propulsion force while reducing the line loss of components such as connecting wires, thereby improving the system operation efficiency.

[0026] The electric propulsion device of the present invention reduces the volume and weight, while improving the overall operating efficiency. The shell of the ammunition 7 is made of metal, serving as a load-bearing part, and also an electrical connector for the left conductive strip 6 and the right conductive strip 5. It is generally a rotating body structure or polyhedron such as a cylinder, a disk, a column or a cup made of steel, copper, brass, etc. The right conductive strip 5 and the left conductive strip 6 have a contact surface that matches the shape of the outer surface of the ammunition 7. The four comb-shaped electrodes can be metal materials such as aluminum alloy, copper, stainless steel, or electrolyte films. Between the teeth of the left rear comb-shaped electrode 1 and the left front comb-shaped electrode 4, the right rear comb-shaped electrode 2 and the right front comb-shaped electrode 3 are filled with dielectric materials. The dielectric material can be various engineering plastics, such as polyethylene, polyvinyl chloride or polytetrafluoroethylene, insulating oxide film, etc. The comb-shaped electrodes and dielectric materials can be made by a composite process, such as an aluminum-plated film, or an electrolyte film and an oxide film, a compound electrolyte layer, to form an electrode structure similar to an electrolyte capacitor or a supercapacitor.

[0027] It can be seen that the present invention integrates the traditional multilayer film structure of the pulse power capacitor for energy storage and the outer layer reinforcement structure of the orbital thruster into one part, which is greatly simplified. At the same time, the magnetic field generated by the internal current of the two pairs of comb electrodes is superimposed on the ammunition 7, and the Ampere force formed increases the propulsion force and the energy utilization efficiency of the entire system, thereby increasing the exit speed of the ammunition 7, or at the same exit speed, the system has a smaller volume and weight.

[0028] The spatial posture and shape of the comb electrodes can be changed and deformed, such as Figure 3 As shown, the plane where the comb electrodes are located is relative to Figure 2 After being rotated by 90°, for the sake of clarity, the right rear comb electrode 2 and the right front comb electrode 3 are removed from the figure. Figure 4 The comb-shaped electrode is deformed into two intertwined coil structures. For the sake of clarity, the right rear comb-shaped electrode 2 and the right front comb-shaped electrode 3 are removed from the figure. In the above two cases, the teeth of the comb-shaped electrodes are filled with dielectric materials.

[0029] The overall dimensions of the entire electric propulsion device can be made consistent with the bore diameter of a conventional artillery, so that conventional artillery can be directly used for propulsion, that is, the existing artillery can be directly electromagnetic without any modification, breaking through the exit speed limit of conventional artillery, having higher exit kinetic energy and delivery distance, and being safer, more convenient and more reliable in terms of storage, transportation and maintenance than conventional propellant projectiles. This makes the propulsion device proposed by the present invention compatible with existing conventional artillery, and can become a new type of ammunition with an exit speed exceeding that of existing gunpowder-propelled ammunition.

[0030] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric propulsion device using internal current to enhance magnetic field, characterized in that: It comprises two pairs of comb-shaped electrodes, two conductive strips in the middle and an external circuit; the two pairs of comb-shaped electrodes are a left rear comb-shaped electrode, a right rear comb-shaped electrode, a right front comb-shaped electrode and a left front comb-shaped electrode, and the two conductive strips are a right conductive strip and a left conductive strip; the ammunition with a metal conductive shell is located at the starting end, and is located in the middle of the right conductive strip and the left conductive strip and is in contact with the ammunition; between the teeth of the left rear comb-shaped electrode and the left front comb-shaped electrode, and between the teeth of the right rear comb-shaped electrode and the right front comb-shaped electrode, there are filled with dielectric materials; the left rear comb-shaped electrode and the right front comb-shaped electrode are a group in terms of potential, first interconnected and then connected to the right conductive strip; the left front comb-shaped electrode and the right rear comb-shaped electrode are a group in terms of potential, first interconnected and then connected to the left conductive strip; a control switch is set between any group of comb-shaped electrodes and the connected conductive strip; the external circuit is used to apply a high voltage between the two groups of comb-shaped electrodes; After one propulsion action, the comb-shaped electrodes are recharged as energy storage components, and new ammunition is loaded inside to achieve rapid and repeated propulsion.

2. The electric propulsion device using internal current for magnetic field enhancement according to claim 1, characterized in that: The teeth of the left rear comb-shaped electrode and the left front comb-shaped electrode, and the teeth of the right rear comb-shaped electrode and the right front comb-shaped electrode are interlaced and are respectively located on the left and right sides of the two conductive strips.

3. The electric propulsion device using internal current for magnetic field enhancement according to claim 1, characterized in that: The positive and negative electrodes of the left and right comb electrodes are in opposite front and back positions, wherein the conductive strip adjacent to the positive electrode of the comb electrode on one side of the starting end is the positive conductive strip, and the positive electrode of the comb electrode on the other side is at the exit end, and the adjacent conductive strip is the negative conductive strip; the positive electrodes of the comb electrodes on both sides are connected to the positive conductive strip, and the negative electrodes of the comb electrodes on both sides are connected to the negative conductive strip.

4. The electric propulsion device using internal current for magnetic field enhancement according to claim 3, characterized in that: The control switch is located between any group of comb-shaped electrodes and conductive strips, that is, between the positive electrode of the comb-shaped electrodes and the positive conductive strips, or between the negative electrode of the comb-shaped electrodes and the negative conductive strips.

5. The electric propulsion device using internal current for magnetic field enhancement according to claim 3, characterized in that: The control switch is in the disconnected state, and the external circuit applies a high voltage between the positive and negative comb electrodes, so that the positive electrode of the comb electrode is positively charged and the negative electrode of the comb electrode is negatively charged. After the voltage reaches the rated value, the control switch is closed, and the magnetic field generated by the internal current is superimposed on the current of the ammunition with a metal conductive shell, and the generated Ampere force drives the ammunition forward.

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