A coaxial cable bus device of electromagnetic emission pulse power supply and a pulse power supply module

Abstract

The application relates to a coaxial cable converging device of an electromagnetic emission pulse power supply and a pulse power supply module, and belongs to the technical field of electromagnetic emission, which solves the problem of low service life of the existing pulse power supply module. The coaxial cable converging device of the electromagnetic emission pulse power supply comprises a support, a copper conductor and a conductive device, the coaxial cable is fixed on the support through the conductive device, the conductive device is connected with the copper conductor, and the copper conductor is connected with the power supply. The support of the converging device adopts a composite multilayer structure composed of an epoxy resin plate and a stainless steel plate, so that the support strength is improved, and electrical insulation is ensured.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic emission technology, and specifically relates to an electromagnetic emission pulse power supply coaxial cable combiner and pulse power supply module. Background Technology

[0002] Electromagnetic launch works by using electromagnetic force to drive a load, converting electromagnetic energy into the kinetic energy of an armature. Currently, the applications of electromagnetic launch are becoming increasingly widespread. Compared to traditional launch methods, electromagnetic launch technology utilizes electromagnetic energy to accelerate the load, offering advantages such as high speed and high safety. Furthermore, by controlling the electrical energy, the launch load's exit velocity can be controlled, making the launch more stable. This has become a mainstream development trend for future combat weapons.

[0003] The pulse power supply, as the energy storage system of the electromagnetic launch device, determines the electromagnetic launch capability. The pulse power supply system is connected to the electromagnetic launch system via a combiner device. The combiner device collects the current from the pulse power supply module and conducts it to a coaxial cable, which is then connected to the electromagnetic launch system, thus converting electrical energy into kinetic energy for launch. Therefore, the combiner device is the key component connecting the electromagnetic launch system and the pulse power supply module, determining the electromagnetic launch capability.

[0004] Existing busbar devices experience strong electrodynamic forces on the cable during discharge, making the cable core wires prone to breakage and reducing cable lifespan. Furthermore, during current conduction to the coaxial cable, the busbar device is susceptible to tip discharge, which can cause burn-out and shorten the lifespan of the pulse power module. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide an electromagnetic emission pulse power supply coaxial cable busbar and pulse power supply module to solve the problem of low service life of existing pulse power supply modules.

[0006] The objective of this invention is mainly achieved through the following technical solutions:

[0007] An electromagnetic pulse power supply coaxial cable busbar includes a bracket, a copper conductor, and a conductive device. The coaxial cable is fixed on the bracket through the conductive device, the conductive device is connected to the copper conductor, and the copper conductor is connected to a power source.

[0008] Furthermore, the bracket includes a first insulating plate, a second insulating plate, and a support plate. The support plate includes a horizontal plate and a vertical plate that are perpendicular to each other. The first insulating plate and the second insulating plate are respectively attached to both sides of the vertical plate.

[0009] Furthermore, the first insulating plate and the second insulating plate have the same width, the vertical plate has a smaller width than the first insulating plate, and the vertical plate is located in the middle of the width direction of the first insulating plate and the second insulating plate.

[0010] Furthermore, a third insulating plate and a fourth insulating plate are respectively provided on both sides of the vertical plate in the width direction.

[0011] Furthermore, the conductive device includes a clamping device, through which the coaxial cable is clamped onto the first insulating plate.

[0012] Furthermore, the clamping device includes a positive clamping device and a negative clamping device, which are respectively connected to the positive and negative wire harnesses of the coaxial cable.

[0013] Furthermore, the copper conductor includes a positive copper block and a negative copper block, which are respectively in close contact with the outer side of the second insulating plate.

[0014] Furthermore, the positive electrode clamping device is connected to the positive electrode copper block by two first bolts, and the negative electrode clamping device is connected to the negative electrode copper block by two second bolts.

[0015] Furthermore, it also includes conductive sleeves, with four of the conductive sleeves respectively fitted around the outer periphery of the first bolt and the second bolt.

[0016] A pulse power module includes a pulse capacitor, an electrical module, and a busbar device as described in the above technical solution.

[0017] This invention can achieve at least one of the following beneficial effects:

[0018] (1) The support of the busbar device of the present invention adopts a composite multilayer structure composed of epoxy resin plate and stainless steel plate, which improves the support strength while ensuring electrical insulation.

[0019] (2) The current collection device of the present invention is provided with a conductive sleeve, which connects the pressure block and the copper conductor. The conductive sleeve is interference-fitted with the pressure block and the copper conductor, so that the pressure block, the conductive sleeve and the copper conductor form an integral structure under the action of the bolt preload, thereby enabling the current to be smoothly conducted and avoiding the generation of spike discharge when a large current flows through instantaneously.

[0020] (3) The current combining device of the present invention is provided with a positive flange sleeve and a negative flange sleeve, which are respectively sleeved on the outside of the positive wire harness and the negative wire harness of the coaxial cable. The flange plates of the flange sleeve are respectively clamped on the upper end of the positive pressure block and the lower end of the negative pressure block. On the one hand, the wire harness of the coaxial cable is not squeezed, and on the other hand, the coaxial cable is limited. Even when the cable is dragged by strong electric force, the movement of the coaxial cable in the axial direction is prevented, thereby avoiding damage to the cable core and increasing the safety of the whole system.

[0021] (4) The pulse power module of this invention has a compact structure and a small footprint. The power module can be inserted into the cabinet for use and is suitable for different electromagnetic launch systems.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a schematic diagram of the combiner device structure according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the coaxial cable structure according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the conductive sleeve according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of flange installation according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the pulse power supply module according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the internal layout of the pulse power supply module according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the pulse capacitor according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the inductor according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the switching assembly according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the installation of electrical components according to an embodiment of the present invention.

[0034] Figure label:

[0035] 1-Combine device; 101-First insulating plate; 102-Second insulating plate; 103-Third insulating plate; 104-Fourth insulating plate; 105-Positive copper block; 106-Negative copper block; 107-Support plate; 108-Coaxial cable; 109-Negative pressure plate; 110-Negative pressure block; 111-Positive pressure plate; 112-Positive pressure block; 113-Positive flange sleeve; 114-Negative flange sleeve; 115-Conductive sleeve;

[0036] 2-Electrical module, 201-Input connector, 202-Switch assembly, 2021-First copper busbar, 2022-Second copper busbar, 203-Trigger box, 204-Bleeding switch, 205-Insulating base plate, 206-Bleeding resistor, 207-Reinforced base plate, 208-Inductor, 2081-Inductor fixing component, 2082-Inductor insulating pad, 2083-Double-ended screw, 209-Insulating left side plate, 210-Reinforced left side plate, 211-Insulating right side plate;

[0037] 3-Pulse capacitor, 301-Capacitor insulation board. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0040] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0041] Example 1

[0042] One embodiment of the present invention, such as Figures 1 to 4As shown, an electromagnetic emission pulse power supply coaxial cable busbar device is disclosed, including a bracket, a copper conductor and a conductive device. The coaxial cable 108 is fixed on the bracket through the conductive device, the conductive device is connected to the copper conductor, and the copper conductor is connected to the power supply. During the operation of the power supply, the coaxial cable 108 can be completely fastened together with the copper conductor, thereby providing a reliable power output structure for the electromagnetic emission system.

[0043] Specifically, the bracket includes a first insulating plate 101, a second insulating plate 102, and a support plate 107. The support plate 107 is L-shaped and includes a horizontal plate and a vertical plate. The first insulating plate 101 and the second insulating plate 102 are respectively attached to the two sides of the vertical plate. The bracket is fixedly connected to the pulse power module through the horizontal plate.

[0044] Furthermore, the width of the first insulating plate 101 is the same as the width of the second insulating plate 102, the width of the vertical plate is less than the width of the first insulating plate 101, and the vertical plate is located in the middle of the width direction of the first insulating plate 101 and the second insulating plate 102.

[0045] Furthermore, a third insulating plate 103 and a fourth insulating plate 104 are respectively provided on both sides of the vertical plate in the width direction. That is to say, the third insulating plate 103 and the fourth insulating plate 104 are located in the gap formed between the first insulating plate 101 and the second insulating plate 102, and the first insulating plate 101, the second insulating plate 102, the third insulating plate 103 and the third insulating plate 104 enclose the vertical plate in the front-back and left-right directions.

[0046] For example, the first insulating plate 101, the second insulating plate 102, the third insulating plate 103 and the fourth insulating plate 104 are epoxy resin plates, and the support plate 107 is a stainless steel plate. While ensuring the electrical insulation of the bracket, the support strength of the bracket is improved so as to ensure that the bracket can withstand the impact of the electric force during discharge.

[0047] In this embodiment, the conductive device includes a clamping device, and the coaxial cable 108 is clamped onto the first insulating plate 101 by the clamping device.

[0048] Furthermore, the clamping device includes a positive clamping device and a negative clamping device, which are respectively connected to the positive and negative wire harnesses of the coaxial cable 108 to clamp the coaxial cable 108 onto the bracket.

[0049] Furthermore, the copper conductor includes a positive copper block 105 and a negative copper block 106, which are respectively in close contact with the outer side of the second insulating plate 102.

[0050] Specifically, the positive copper block 105 is connected to the positive clamping device, and the negative copper block 106 is connected to the negative clamping device, thereby connecting the coaxial cable 108 to the power supply.

[0051] Furthermore, the positive electrode clamping device includes a positive electrode clamping block 112 and a positive electrode clamping plate 111. The positive electrode harness of the coaxial cable 108 is located between the positive electrode clamping block 112 and the positive electrode clamping plate 111. The positive electrode clamping block 112 is connected to the positive electrode copper block 105 by two first bolts. The first bolts pass through the first insulating plate 101, the third insulating plate 103 / fourth insulating plate 104 and the second insulating plate 102 respectively. The positive electrode clamping plate 111 and the positive electrode clamping block 112 are connected by bolts, and the positive electrode harness is clamped by the preload of the bolts.

[0052] Similarly, the negative electrode clamping device includes a negative electrode clamping block 110 and a negative electrode clamping plate 109. The negative electrode harness of the coaxial cable 108 is located between the negative electrode clamping block 110 and the negative electrode clamping plate 109. The negative electrode clamping block 110 is connected to the negative electrode copper block 106 by two second bolts. The negative electrode clamping plate 109 and the negative electrode clamping block 110 are connected by bolts. The negative electrode harness is clamped by the preload of the bolts.

[0053] In this embodiment, a flange sleeve is also provided to protect the copper core wire of the coaxial cable 108 and prevent the copper core wire from being damaged by the impact of the high voltage discharge of the pulse power supply.

[0054] Furthermore, the flange sleeve includes a positive flange sleeve 113 and a negative flange sleeve 114, which are respectively soldered and sealed to the positive and negative wire harnesses of the coaxial cable 108.

[0055] Specifically, the positive electrode flange 113 includes a first sleeve and a first flange plate. The first flange plate is located at the upper end of the first sleeve, and the first sleeve is fitted over the outside of the positive electrode harness. The cylindrical surface of the first sleeve is subjected to a clamping force under the fastening action of the positive electrode pressure block 112 and the positive electrode pressure plate 111.

[0056] Furthermore, the negative electrode flange sleeve 114 includes a second sleeve and a second flange plate. The second flange plate is located at the lower end of the second sleeve, and the second sleeve is fitted over the outside of the negative electrode harness. The cylindrical surface of the second sleeve is subjected to clamping force under the fastening action of the negative electrode pressure block 110 and the negative electrode pressure plate 109.

[0057] After the coaxial cable 108 is pressed onto the bracket by the clamping device, the first flange plate and the second flange plate are respectively clamped at the upper end of the positive clamping device and the lower end of the negative clamping device, which limit the movement of the coaxial cable 108. Even when the cable is dragged by strong electric force, the first flange plate and the second flange plate are respectively clamped at the upper end of the positive clamping device and the lower end of the negative clamping device, preventing the coaxial cable 108 from moving in the axial direction, thereby avoiding damage to the cable core and increasing the safety of the entire system.

[0058] In this embodiment, a conductive sleeve 115 is also provided to enhance the conductivity between the power supply and the coaxial cable 108.

[0059] Specifically, four conductive sleeves 115 are provided, which are respectively fitted around the outer periphery of the first bolt and the second bolt. The length of the conductive sleeve 115 is greater than the total thickness of the first insulating plate 101, the second insulating plate 102 and the third insulating plate 103. The two ends of the conductive sleeve 115 are respectively interference-fitted with the positive electrode block 112 / negative electrode block 110 and the positive electrode copper block 105 / negative electrode copper block 106 to ensure that the positive electrode block 112, the conductive sleeve 115 and the positive electrode copper block 105 / negative electrode block 110, the conductive sleeve 115 and the negative electrode copper block 106 form an integral structure under the action of the bolt preload, which facilitates the transmission of current and allows the current to be transmitted smoothly between the positive electrode block 112 and the positive electrode copper block 105 or the negative electrode block 110 and the negative electrode copper block 106. There will be no spike discharge when a large current flows through instantaneously, thus avoiding the burning of the busbar device.

[0060] For example, the conductive sleeve 115 is a copper sleeve, thereby improving conductivity.

[0061] Optionally, the positive electrode pressure block 112 and the positive electrode copper block 105 are an integral structure. Specifically, the first insulating plate, the third / fourth insulating plate and the second insulating plate have openings at the locations where the positive electrode pressure block is installed, and the positive electrode pressure block 112 and the positive electrode copper block 105 are connected as one unit at the openings, thereby ensuring the stability of current transmission directly between the power supply and the coaxial cable.

[0062] Similarly, optionally, the negative electrode pressure block 110 and the negative electrode copper block 106 are an integral structure.

[0063] The current combiner provided by this invention is fixed within the pulse power module by a composite multi-layered support structure composed of a stainless steel plate bracket and an epoxy resin plate, which improves the support strength while ensuring electrical insulation. By incorporating a conductive sleeve 115 and a flange, the current combiner improves its conductivity while protecting the core of the coaxial cable 108, thus extending the system's service life.

[0064] Example 2

[0065] One embodiment of the present invention, such as Figures 5 to 10 As shown, a pulse power supply module is disclosed, including a pulse capacitor 3, an electrical module 2, and a busbar 1 as described in Embodiment 1. The pulse capacitor 3 is charged to a set voltage by a constant current to store the electrical energy required for electromagnetic emission, and can perform rapid pulse discharge to the electromagnetic emission device via the electrical module 2 and the busbar 1.

[0066] Specifically, the electrical module 2 is equipped with an outer casing, which is made of an insulating board to ensure reliable insulation between the electrical components inside the electrical module 2 and the external chassis.

[0067] Furthermore, since the electrical components are subjected to strong electrodynamic forces during the discharge process of the pulse power module, the housing also includes reinforcing plates to provide reliable support for the electrical components.

[0068] In this embodiment, the reinforcing plate includes a reinforcing base plate 207 and a reinforcing left side plate 210, which are respectively attached to the outside of the insulating base plate 205 and the insulating left side plate 209.

[0069] In this embodiment, the reinforcing base plate 207 and the reinforcing left side plate 210 are stainless steel plates, and the reinforcing base plate 207 and the reinforcing left side plate 210 are an integral structure.

[0070] Furthermore, the pulse capacitor 3 is connected to the reinforced left side plate 210 via the capacitor insulation plate 301, ensuring the structural strength of the pulse capacitor 3 while enhancing the insulation performance between the pulse capacitor 3 and the electrical module 2. The positive and negative terminals of the pulse capacitor 3 extend into the electrical module 2 through the insulating left side plate 209.

[0071] Furthermore, the electrical module 2 includes a switch assembly 202, which is fixed on the reinforcing base plate 207.

[0072] Furthermore, the switching assembly 202 includes a first copper busbar 2021 and a second copper busbar 2022. One end of the first copper busbar 2021 is fixedly connected to the switching assembly 202, and the other end is fixedly connected to the positive terminal of the pulse capacitor 3. One end of the second copper busbar 2022 is fixedly connected to the switching assembly 202, and the other end is fixedly connected to the negative terminal of the pulse capacitor 3. Thus, the discharge of the pulse capacitor 3 is controlled by the switching assembly 202.

[0073] Furthermore, the electrical module 2 also includes a trigger box 203 and a discharge switch 204. The discharge switch 204 is fixed on the insulating base plate 205, and the trigger box 203 is fixed on the top plate of the discharge switch 204 and connected to the switch assembly 202 to control the thyristor in the switch assembly 202 to conduct and trigger the control circuit.

[0074] Furthermore, the electrical module 2 also includes a bleed resistor 206, which has a nylon base. The nylon base is nested together with the bleed resistor 206 and placed on the insulating base plate 205, thereby improving the insulation between the bleed resistor 206 and the reinforcing base plate 207.

[0075] In this embodiment, when the power module finishes discharging and the pulse capacitor 3 still has residual electrical energy, the discharge switch 204 closes under the control of the external circuit, and the energy in the pulse capacitor 3 is absorbed through the discharge resistor 206, thereby protecting the safety of the equipment and personnel.

[0076] Furthermore, the electrical module 2 also includes an inductor 208, which is fixed to the reinforcing base plate 207 by an inductor fixing member 2081, an inductor insulating pad 2082, and a double-ended screw 2083. One end of the double-ended screw 2083 passes through the inductor fixing member 2081, and the other end passes through the reinforcing base plate 207. Both ends are tightened simultaneously with nuts to fix the inductor 208.

[0077] Furthermore, the inductor 208 is connected to the switching assembly 202 via a copper busbar. When the pulse capacitor 3 discharges, the inductor 208 can change the pulse width of the pulse current to meet the current requirements of electromagnetic emission. At the same time, the inductor 208 can store some energy for use in the freewheeling branch.

[0078] Furthermore, the current collector 1 is fixedly connected to the reinforcing base plate 207 via the vertical plate of the support plate 107, thereby supporting the current collector 1. The positive copper block 105 is connected to the switch assembly 202 via a copper busbar, and the negative copper block 106 is connected to the inductor 208 via a copper busbar.

[0079] In this embodiment, the insulating right side plate 211 of the outer casing is provided with a mounting hole for the busbar device 1. The coaxial cable 108 is located on the outside of the outer casing, connects to the electromagnetic transmitter, and outputs current to the electromagnetic transmitter through the busbar device 1.

[0080] Furthermore, the pulse power module of this embodiment also includes an input connector 201, which is disposed on the insulating right side plate 211 and connected to the positive terminal of the pulse capacitor 3. The input connector 201 is connected to an external high-voltage power supply for charging the pulse capacitor 3.

[0081] The pulse power module provided by this invention has a compact structure, occupies little space, and can be inserted into a cabinet for use, making it suitable for different electromagnetic launch systems.

[0082] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A coaxial cable busbar for electromagnetic pulse power supply, characterized in that, It includes a bracket, a copper conductor, a conductive device, and a flange sleeve. A coaxial cable (108) is fixed on the bracket through the conductive device. The conductive device is connected to the copper conductor, and the copper conductor is connected to a power source. The conductive device includes a clamping device, which includes a positive clamping device and a negative clamping device, respectively connected to the positive and negative wire harnesses of the coaxial cable (108); The positive electrode clamping device includes a positive electrode clamping block (112) and a positive electrode clamping plate (111), which are connected by bolts; the negative electrode clamping device includes a negative electrode clamping block (110) and a negative electrode clamping plate (109), which are connected by bolts. The flange includes a positive flange (113) and a negative flange (114). The positive flange (113) includes a first sleeve and a first flange plate. The first flange plate is located at the upper end of the first sleeve, and the first sleeve is fitted on the outside of the positive wire harness. The cylindrical surface of the first sleeve is subjected to clamping force under the fastening action of the positive clamping block (112) and the positive clamping plate (111). The negative flange (114) includes a second sleeve and a second flange plate. The second flange plate is located at the lower end of the second sleeve, and the second sleeve is fitted on the outside of the negative wire harness. The cylindrical surface of the second sleeve is subjected to clamping force under the fastening action of the negative clamping block (110) and the negative clamping plate (109). The first flange plate and the second flange plate are respectively clamped at the upper end of the positive clamping device and the lower end of the negative clamping device, which limit the coaxial cable (108).

2. The electromagnetic emission pulse power supply coaxial cable busbar according to claim 1, characterized in that, The bracket includes a first insulating plate (101), a second insulating plate (102), and a support plate (107). The support plate (107) includes a horizontal plate and a vertical plate that are perpendicular to each other. The first insulating plate (101) and the second insulating plate (102) are respectively attached to the two sides of the vertical plate.

3. The electromagnetic emission pulse power supply coaxial cable busbar according to claim 2, characterized in that, The first insulating plate (101) and the second insulating plate (102) have the same width, the vertical plate has a smaller width than the first insulating plate (101), and the vertical plate is located in the middle of the width direction of the first insulating plate (101) and the second insulating plate (102).

4. The electromagnetic emission pulse power supply coaxial cable bus device according to claim 3, characterized in that, A third insulating plate (103) and a fourth insulating plate (104) are respectively provided on both sides of the vertical plate in the width direction.

5. The electromagnetic emission pulse power supply coaxial cable busbar according to claim 4, characterized in that, The coaxial cable (108) is pressed onto the first insulating plate (101) by a pressing device.

6. The electromagnetic emission pulse power supply coaxial cable busbar according to claim 5, characterized in that, The copper conductor includes a positive copper block (105) and a negative copper block (106), which are respectively attached to the outer side of the second insulating plate (102).

7. The electromagnetic emission pulse power supply coaxial cable busbar according to claim 6, characterized in that, The positive electrode clamping device is connected to the positive electrode copper block (105) by two first bolts, and the negative electrode clamping device is connected to the negative electrode copper block (106) by two second bolts.

8. The electromagnetic emission pulse power supply coaxial cable busbar according to claim 7, characterized in that, It also includes conductive sleeves (115), four of which are respectively fitted around the outer periphery of the first bolt and the second bolt.

9. A pulse power supply module, characterized in that, It includes a pulse capacitor, an electrical module, and a busbar as described in any one of claims 1-8.

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