CN114221182B - Variable polarity confluence wire connector for transmitting pulse large current to vacuum chamber - Google Patents
Variable polarity confluence wire connector for transmitting pulse large current to vacuum chamber Download PDFInfo
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- CN114221182B CN114221182B CN202111551031.2A CN202111551031A CN114221182B CN 114221182 B CN114221182 B CN 114221182B CN 202111551031 A CN202111551031 A CN 202111551031A CN 114221182 B CN114221182 B CN 114221182B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/202—Electromagnets for high magnetic field strength
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
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- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F2007/062—Details of terminals or connectors for electromagnets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E30/10—Nuclear fusion reactors
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Abstract
A variable polarity confluence wire connector for transmitting pulse heavy current to a vacuum chamber relates to the field of pulse power electric energy transmission. The connecting device comprises two connecting terminals, a connecting terminal connecting rod, a variable connecting rod, a transition module and a bus bar. The wiring terminal is a bridge for connecting a load coil in the vacuum chamber and a pulse current device outside the vacuum chamber; the bus bar is used for converging the output current of each discharge module of the pulse heavy current device and separating the current outflow end and the current return end of the coaxial cable; the connecting terminal connecting rod, the variable connecting rod and the transition module are connected with the bus bar and the connecting terminal and are components for realizing current polarity conversion. The bus connector can be used as a connecting bridge between a pulse large-current device outside a vacuum chamber and a load coil inside the vacuum chamber in the vacuum chamber with higher vacuum degree, and can connect output coaxial cables of all discharge modules of the pulse large-current device outside the vacuum chamber with the input and output ends of the load coil in the vacuum chamber.
Description
Technical Field
The invention relates to the field of pulse power electric energy transmission, in particular to a polarity-variable confluence wire connector for transmitting pulse large current to a vacuum chamber.
Background
Space physics, which involves the study of the physics of plasmas occurring in the solar system, covers a wide range of scientific topics including solar activity, physics of the solar wind, magnetic, ionosphere and thermal layers and their coupling processes. The ultimate goal of space physics research is to understand the basic processes of solar activity and particle and energy transmission in the day and ground space and provide theoretical basis for forecasting space weather, thereby ensuring the normal operation of satellite communication, satellite navigation and other in-orbit spacecraft functions. In-situ measurements, which typically employ high altitude rockets and satellites, are the primary methods of studying the physics of space, and these methods have achieved some significant research results. However, the method of simply adopting the in-situ measurement also presents some limitations in the research and development process of the space physics, especially single-point or few-point measurement, and the lack of means for simultaneously obtaining global observation data greatly limits the thorough research of people on the observed physical process. In contrast, in a laboratory, the spatial environment conditions have the advantages of controllable process/parameters, repeatable overall evolution process, simultaneous measurement at multiple points, and the like, so that the ground simulation research of the spatial physics experiment carried out by the ground construction simulator in the laboratory, that is, the ground construction simulator, can effectively supplement the research of the spatial physics, thereby generating a new method called laboratory spatial physics.
The space plasma environment simulation and research system is one of the sub-systems of the space environment ground simulation device, the system needs to realize three main factors of vacuum, magnetic field and plasma in the space environment, wherein, a cylindrical tank body with the length of 10 meters and the diameter of 5 meters is adopted as a vacuum chamber, the vacuum degree range of the vacuum chamber in the experimental process is 0.01 Pa to 1 Pa, the magnetic field and the plasma environment condition are realized by a magnet system comprising 7 coils which are 18 in total, and the magnet system receives pulse current provided by a pulse heavy current device to generate a pulse magnetic field and the plasma generated by a coupling effect. The pulse high-current device used by the system consists of a plurality of discharge modules, each module is used as a connecting circuit with an external load by an output coaxial cable, and the connection between the load coil and the outside is a separated input lead and an output lead, so the connection between the pulse high-current device and the load coil is also a key concern. In the system experiment process, the vacuum chamber has higher vacuum degree, and the pulse large-current device needs to provide pulse current of dozens to hundreds of kiloamperes for a magnet system in the vacuum chamber, and the pulse current can generate additional heat besides generating a magnetic field and plasma in each coil, and the higher vacuum degree challenges the heat dissipation problem of the coils. In addition to the above problems, some physical experiments need to be performed under a forward magnetic field and a reverse magnetic field, so that the polarity of the pulse current received by the coil needs to have a switching function without changing the structure of the pulse high-current device and the structure of the coil is fixed. Therefore, how to establish a connection bridge between the pulse heavy-current device outside the vacuum chamber and the load coil inside the vacuum chamber makes the pulse heavy-current device stably and reliably transmit pulse heavy current to the load coil in the vacuum chamber, and simultaneously meets the requirements of the vacuum chamber on air tightness, heat dissipation and variable polarity of the pulse heavy current of the load coil, which is a problem to be solved urgently at present.
Disclosure of Invention
The invention mainly aims to solve the problem that a pulse high-current device outside a vacuum chamber and a load coil inside the vacuum chamber need to be reliably connected and insulated in a space plasma environment simulation and research system, so that pulse currents output by discharge modules of the pulse high-current device can be converged and simultaneously transmitted to the load coil inside the vacuum chamber, and the maximum transmission efficiency of the current is achieved.
Another object of the present invention is to solve the problem that the connection between the pulsed high current device outside the vacuum chamber and the load coil inside the vacuum chamber at the wall of the vacuum chamber is required to satisfy the requirement of the vacuum chamber for air tightness, so that the connection has strong tightness.
Still another object of the present invention is to solve the problem of how to transfer the generated heat to the outside of the vacuum chamber through the connection of the vacuum chamber wall during the experiment process by the load coil inside the vacuum chamber, thereby ensuring the normal operation of the load coil.
A further object of the present invention is to solve the problem of providing a current polarity switching function at the connection of the vacuum bulkhead, so that it is achieved that the load coil can generate a forward or reverse magnetic field according to different experimental requirements without changing the structure of the load coil and the pulsed high-current device.
The invention provides a variable polarity bus connector for transmitting pulse large current to a vacuum chamber.
The technical scheme adopted by the invention is as follows:
the utility model provides a variable polarity that transmits pulse heavy current to vacuum chamber connector that converges, includes the positive pole binding post 1 and the negative pole binding post 2 that structure and function are the same, binding post mounting flange 3, ceramic insulation support 5, under-deck water pipe cutting ferrule 6, metallic conductor 7, binding post mounting flange screw 8, metal water pipe 9, extra-deck water pipe cutting ferrule 10, binding post connecting rod 11, variable connecting rod 12, transition module 13, busbar 14, transition module set screw 15, clamping screw 16, busbar set screw 17.
The positive connecting terminal 1 and the negative connecting terminal 2 have the same structure and function and are bridges for connecting a load coil in the vacuum chamber and a pulse current device outside the vacuum chamber.
The connecting terminal fixing flange 3 is connected with the flange of the vacuum bulkhead 4 through a connecting terminal fixing flange screw 8, is used for fixing the whole connecting terminal and plays a role in sealing.
The ceramic insulating sleeve 5 is sleeved outside the metal conductor 7 and used for fixing the metal conductor 7 in the wiring terminal and insulating the metal conductor 7 from an external flange and other metals.
The metal conductor 7 is a conductive element of the connecting terminal and is a copper cylinder which completely penetrates through the whole connecting terminal, the cabin inner part is used for connecting the input end and the output end of the load coil, the cabin outer part is used for connecting a coaxial cable bus bar, the maximum amplitude of pulse current which can be transmitted by the whole copper cylinder exceeds 18 kA, and the pulse width exceeds 200 ms.
The water pipe clamping sleeve 6 in the cabin is used for connecting and sealing a water cooling pipe of the load coil and is connected with a metal water pipe 9, the metal water pipe 9 penetrates through the wiring terminal fixing flange 3 and is connected with the water pipe clamping sleeve 10 outside the cabin after being fixed and sealed, and the water pipe clamping sleeve 10 outside the cabin is connected with a water pipe of a circulating cooling water device.
The terminal connecting bar 11 is a metal conductor, and the length thereof is determined according to an actual installation position, and is used to extend the metal conductor 7 and connect the metal conductor 7 and the variable connecting bar 12.
The variable connecting rod 12 is a metal conductor, is connected with the transition module 13 and then is connected with the junction station 14, can rotate around the terminal connecting rod 11 for changing the polarity of current, needs to unscrew the clamping screw 16 at the end before rotating, and then screws the clamping screw 16 at the end after rotating to a certain position.
The transition module 13 is a metal conductor, and the height thereof can be determined according to the actual installation position, so as to increase the distance between the variable connecting rod 11 and the bus bar and prevent high voltage breakdown.
The bus bar 14 is respectively connected with the positive terminal 1 and the negative terminal 2 through two groups of transition modules 13, variable connecting rods 12 and terminal connecting rods 11, and is used for converging output currents of discharge modules of a pulse large-current device outside the vacuum chamber and separating a current outflow end and a current return end of the coaxial cable.
The transition module fixing screw 15 is used for connecting and fixing the transition module 13.
The bus fixing screw holes 17 are 4 groups in total, and each group is 4 and is used for inserting connecting screws 18 to fix the transition module 13.
In the present invention, the bus bar 14 includes an outer core bus bar 20, an inner core bus bar 21, and a connection screw 18. The outer core bus bar 20 and the inner core bus bar 21 are metal conductors, are respectively connected with the coaxial cable outer core 19 and the coaxial cable inner core 22, are used for converging output pulse currents of a plurality of discharging modules of the pulse high-current device, and can be expanded to access different numbers of coaxial cables according to the number of actual discharging modules.
The transition modules 13 are connected with the outer core bus bar 20 and the inner core bus bar 21 through the connecting screws 18, and the number of the transition modules is 2, and each group is 4. When the positions of the variable connecting rods 12 and the transition modules 13 need to be changed, namely, the two groups of variable connecting rods 12 and the transition modules 13 rotate 180 degrees respectively by taking the connecting terminal connecting rods 11 as axes, 8 connecting screws 18 need to be taken down from the bottoms of the outer core bus bars 20 and the inner core bus bars 21 respectively, and then the transition modules 13 and the variable connecting rods 12 are inserted and fixed from the bottoms of the outer core bus bars 20 and the inner core bus bars 21 respectively at the positions of corresponding bus bar fixing screw holes 17 after the variable connecting rods 12 and the transition modules 13 rotate.
The coaxial cable outer core 19 and the coaxial cable inner core 22 are respectively connected with a negative current flowing-back end and a positive current flowing-out end of the pulse high-current device.
In the present invention, the polarity switching function is realized by changing the positions of the variable connecting rod 12 and the transition module 13. When one group of variable connecting rods 12 and transition modules 13 is connected with a positive terminal 1 and an inner core bus bar 21, and the other group of variable connecting rods 12 and transition modules 13 is connected with a negative terminal 2 and an outer core bus bar 20, when the direction of exciting current supplied to a load coil by a pulse large-current device needs to be changed, the connecting screws 18 are removed, the clamping screws 16 at the ends are loosened, the variable connecting rods 12 and the transition modules 13 connected with the inner core bus bar 21 are rotated 180 degrees by taking the connecting rods 11 as axes, the variable connecting rods 12 and the transition modules 13 connected with the outer core bus bar 20 are rotated 180 degrees in the same way, the variable connecting rods 12 and the transition modules 13 are connected again through the connecting screws 18, and finally the clamping screws 16 at the ends are tightened, at this time, one group of variable connecting rods 12 and transition modules 13 is connected with the positive terminal 1 and the outer core bus bar 20, the other group of variable connecting rods 12 and transition modules 13 are connected with the negative terminal 2 and the inner core bus bar 20, thereby achieving the switching of the current polarity.
Has the advantages that: the bus connector can be used as a connecting bridge between a pulse large-current device outside the vacuum cabin and a load coil inside the vacuum cabin in a vacuum cabin with higher vacuum degree, can gather output currents generated by a plurality of discharge modules of the pulse large-current device, and separate a current outflow end and a current return end in a coaxial cable, thereby realizing the connection of output coaxial cables of all discharge modules of the pulse large-current device outside the vacuum cabin and an input and output end of the load coil inside the vacuum cabin, simultaneously meeting the insulation and sealing requirements of a joint between an interface inside the vacuum cabin and an interface outside the vacuum cabin, providing an interface for connecting a cooling water pipe of the load coil and a circulating cooling water system outside the vacuum cabin, and in addition, in order to meet the requirements of different physical experiments on the directions of positive and negative magnetic fields of the load coil without changing the structures of the load coil and the pulse large-current device, the polarity of the current supplied to the load coil can be changed by the bus bar connector.
The device has the beneficial effects that: 1) the bus connector can be used as a connecting bridge between a pulse large-current device outside a vacuum chamber and a load coil inside the vacuum chamber in the vacuum chamber with higher vacuum degree; 2) by using the confluence wire connector, output currents generated by a plurality of discharge modules of the pulse high-current device can be converged, and a current outflow end and a current return end in the coaxial cable are separated, so that the output coaxial cables of all the discharge modules of the pulse high-current device outside the vacuum chamber are connected with the input and output ends of the load coil in the vacuum chamber; 3) by using the confluence wire connector, the pulse large current synchronously output by all the discharging modules of the pulse large current device can be simultaneously output to the load coil, so that the maximum transmission and use efficiency of the current is achieved; 4) the confluence wire connector meets the insulation requirement in the discharging process of the pulse high-current device; 5) the confluence wire connector meets the requirement of a high-vacuum degree vacuum chamber on the sealing property; 6) the confluence wire connector is provided with an interface for connecting a load coil cooling water pipe with a circulating cooling water system outside a vacuum cabin, and can transmit heat generated by the load coil to the outside of the vacuum cabin in time; 7) the bus wire connector can convert the polarity of pulse heavy current received by a load coil in a vacuum chamber by changing a connecting structure, so that the requirements of different physical experiments on the positive and negative magnetic fields of the load coil are met.
Drawings
FIG. 1 is a schematic diagram of a variable polarity bus connector for delivering pulsed high currents into a vacuum chamber;
FIG. 2 is a schematic view of a bus bar in a variable polarity bus connector for delivering pulsed high current into a vacuum chamber;
FIG. 3 is a schematic diagram showing a state of a variable polarity bus connector for transmitting a pulsed large current to a vacuum chamber after current polarity conversion is performed;
the reference numbers in the figures are: the connecting device comprises a positive connecting terminal 1, a negative connecting terminal 2, a connecting terminal fixing flange 3, a vacuum bulkhead 4, a connecting terminal insulating sleeve 5, an in-cabin water pipe clamping sleeve 6, a metal conductor 7, a connecting terminal fixing flange screw 8, a metal water pipe 9, an out-cabin water pipe clamping sleeve 10, a connecting terminal connecting rod 11, a variable connecting rod 12, a transition module 13, a bus bar 14, a transition module fixing screw 15, a clamping screw 16, a bus bar fixing screw hole 17, a connecting screw 18, a coaxial cable outer core 19, an outer core bus bar 20, an inner core bus bar 21 and a coaxial cable inner core 22.
Detailed Description
The first embodiment is described in detail with reference to fig. 1 to 3, and the polarity-variable confluence connector for transmitting a pulsed large current to a vacuum chamber in the first embodiment includes a positive terminal 1 and a negative terminal 2 which have the same structure and function, a terminal fixing flange 3, a ceramic insulating sleeve 5, an in-chamber water pipe ferrule 6, a metal conductor 7, a terminal fixing flange screw 8, a metal water pipe 9, an out-chamber water pipe ferrule 10, a terminal connecting rod 11, a variable connecting rod 12, a transition module 13, a busbar 14, a transition module fixing screw 15, a clamping screw 16, and a busbar fixing screw hole 17.
The positive connecting terminal 1 and the negative connecting terminal 2 have the same structure and function and are bridges for connecting the load coil in the cabin and the pulse current device outside the cabin.
The connecting terminal fixing flange 3 is connected with the flange of the vacuum bulkhead 4 through a connecting terminal fixing flange screw 8, is used for fixing the whole connecting terminal and plays a role in sealing.
The ceramic insulator sleeve 5 is fitted over the metal conductor 7 for fixing the metal conductor 7 in the terminal assembly 1 and insulating the metal conductor 7 from external flanges and other metals.
The metal conductor 7 is a conductive element of the positive terminal 1 and is a copper cylinder which completely penetrates through the positive terminal 1, the internal part of the cabin is used for connecting the input end and the output end of the load coil, the external part of the cabin is used for connecting a coaxial cable bus bar, and the whole copper cylinder can transmit current in kiloampere level.
The water pipe clamping sleeve 6 in the cabin is used for connecting and sealing a water cooling pipe of the load coil and is connected with a metal water pipe 9, the metal water pipe 9 penetrates through the wiring terminal fixing flange 3 and is connected with the water pipe clamping sleeve 10 outside the cabin after being fixed and sealed, and the water pipe clamping sleeve 10 outside the cabin is connected with a water pipe of a circulating cooling water device.
The terminal connecting bar 11 is a metal conductor, the length of which is determined according to the actual installation position, and is used for extending the metal conductor 7 and connecting the metal conductor 7 and the variable connecting bar 12.
The variable connecting rod 12 is a metal conductor, is connected with the transition module 13 and then connected with the junction station 14, can rotate around the terminal connecting rod 11 for changing the polarity of current, needs to unscrew the clamping screw 16 at the end before rotating, and then screws the clamping screw 16 at the end after rotating to a position.
The transition module 13 is a metal conductor, and the height thereof can be determined according to the actual installation position, so as to increase the distance between the variable connecting rod 11 and the bus bar and prevent high voltage breakdown.
The bus bar 14 is respectively connected with the positive terminal 1 and the negative terminal 2 through two groups of transition modules 13, variable connecting rods 12 and terminal connecting rods 11, and is used for converging output currents of discharge modules of a pulse large-current device outside the vacuum chamber and separating a current outflow end and a current return end of the coaxial cable.
The transition module fixing screw 15 is used for connecting and fixing the transition module 13.
The busbar fixing screw holes 17 are 4 groups in total, and each group is provided with 4 bus bars and is used for inserting connecting screws 18 to fix the transition module 13.
In the second embodiment, the present embodiment is further described with respect to the polarity-variable bus connector for transmitting a pulsed large current into a vacuum chamber in the first embodiment, in which the bus bar 14 includes an outer core bus bar 20, an inner core bus bar 21, and a connecting screw 18. The outer core bus bar 20 and the inner core bus bar 21 are metal conductors, are respectively connected with the coaxial cable outer core 19 and the coaxial cable inner core 22, are used for converging output pulse currents of a plurality of discharging modules of the pulse high-current device, and can be expanded to access different numbers of coaxial cables according to the number of actual discharging modules.
The transition modules 13 are connected with the outer core bus bar 20 and the inner core bus bar 21 through the connecting screws 18, and the number of the transition modules is 2, and each group is 4. When the positions of the variable connecting rods 12 and the transition modules 13 need to be changed, namely, the two groups of variable connecting rods 12 and the transition modules 13 rotate 180 degrees respectively by taking the connecting terminal connecting rods 11 as axes, 8 connecting screws 18 need to be taken down from the bottoms of the outer core bus bars 20 and the inner core bus bars 21 respectively, and then the transition modules 13 and the variable connecting rods 12 are inserted and fixed from the bottoms of the outer core bus bars 20 and the inner core bus bars 21 respectively at the positions of the corresponding bus bar fixing screw holes 17 after the variable connecting rods 12 and the transition modules 13 rotate.
The coaxial cable outer core 19 and the coaxial cable inner core 22 are respectively connected with a negative current flowing-back end and a positive current flowing-out end of the pulse high-current device.
In the third embodiment, the polarity switching function is realized by changing the positions of the variable connecting rod 12 and the transition module 13. In the case where one set of the variable connection bar 12 and the transition module 13 connects the positive electrode connection terminal 1 and the core bus bar 21, and the other set of the variable connection bar 12 and the transition module 13 connects the negative electrode connection terminal 2 and the core bus bar 20, when it is necessary to change the direction of the exciting current supplied to the load coil by the pulse high-current device, after the connection screw 18 is removed, the variable connection bar 12 and the transition module 13 connected to the core bus bar 21 are rotated by 180 degrees about the terminal connection bar 11, after the variable connecting rod 12 connected with the outer core bus bar 20 and the transition module 13 are rotated 180 degrees in the same way, the connection is carried out again through the connecting screw 18, at the moment, one group of variable connecting rods 12 and the transition module 13 are connected with the positive connecting terminal 1 and the outer core bus bar 20, and the other group of variable connecting rods 12 and the transition module 13 are connected with the negative connecting terminal 2 and the inner core bus bar 20, so that the conversion of current polarity is realized.
The first embodiment is as follows: as shown in fig. 1, the polarity-changeable confluence wire connector for transmitting a pulse large current to a vacuum chamber according to the present embodiment includes a positive terminal 1 and a negative terminal 2 having the same structure and function, a terminal fixing flange 3, a ceramic insulating sleeve 5, an in-chamber water pipe sleeve 6, a metal conductor 7, a terminal fixing flange screw 8, a metal water pipe 9, an out-chamber water pipe sleeve 10, a terminal connecting rod 11, a variable connecting rod 12, a transition module 13, a busbar 14, a transition module fixing screw 15, a clamping screw 16, and a busbar fixing screw hole 17.
The positive connecting terminal 1 and the negative connecting terminal 2 have the same structure and function and are bridges for connecting the load coil in the cabin and the pulse current device outside the cabin.
The connecting terminal fixing flange 3 is connected with the flange of the vacuum bulkhead 4 through a connecting terminal fixing flange screw 8, is used for fixing the whole connecting terminal and plays a role in sealing.
The ceramic insulator sleeve 5 is fitted over the metal conductor 7 and serves to secure the metal conductor 7 within the terminal assembly 1 and to insulate the metal conductor 7 from external flanges and other metals.
The metal conductor 7 is a conductive element of the positive terminal 1 and is a copper cylinder which completely penetrates through the positive terminal 1, the internal part of the cabin is used for connecting the input end and the output end of the load coil, the external part of the cabin is used for connecting a coaxial cable bus bar, and the whole copper cylinder can transmit current in kiloampere level.
The water pipe clamping sleeve 6 in the cabin is used for connecting and sealing a water cooling pipe of the load coil and is connected with a metal water pipe 9, the metal water pipe 9 penetrates through the wiring terminal fixing flange 3 and is connected with the water pipe clamping sleeve 10 outside the cabin after being fixed and sealed, and the water pipe clamping sleeve 10 outside the cabin is connected with a water pipe of a circulating cooling water device.
The terminal connecting bar 11 is a metal conductor, the length of which is determined according to the actual installation position, and is used for extending the metal conductor 7 and connecting the metal conductor 7 and the variable connecting bar 12.
The variable connecting rod 12 is a metal conductor, is connected with the transition module 13 and then connected with the junction station 14, can rotate around the terminal connecting rod 11 for changing the polarity of current, needs to unscrew the clamping screw 16 at the end before rotating, and then screws the clamping screw 16 at the end after rotating to a position.
The transition module 13 is a metal conductor, and the height thereof can be determined according to the actual installation position, so as to increase the distance between the variable connecting rod 11 and the bus bar and prevent high voltage breakdown.
The bus bar 14 is respectively connected with the positive terminal 1 and the negative terminal 2 through two groups of transition modules 13, variable connecting rods 12 and terminal connecting rods 11, and is used for converging output currents of discharge modules of a pulse large-current device outside the vacuum chamber and separating a current outflow end and a current return end of the coaxial cable.
The transition module fixing screw 15 is used for connecting and fixing the transition module 13.
The busbar fixing screw holes 17 are 4 groups in total, and each group is provided with 4 bus bars and is used for inserting connecting screws 18 to fix the transition module 13.
As shown in fig. 2, there is a schematic structural diagram of a bus bar 14 in a polarity-variable bus connector for transmitting a large pulse current to a vacuum chamber, in which the bus bar 14 includes an outer core bus bar 20, an inner core bus bar 21, and a connection screw 18. The outer core bus bar 20 and the inner core bus bar 21 are metal conductors, are respectively connected with the coaxial cable outer core 19 and the coaxial cable inner core 22, and are used for converging output pulse currents of a plurality of discharge modules of the pulse high-current device, and the bus bars can be expanded according to the number of actual discharge modules to be connected with different numbers of coaxial cables.
The transition modules 13 are connected with the outer core bus bar 20 and the inner core bus bar 21 through the connecting screws 18, and the number of the transition modules is 2, and each group is 4. When the positions of the variable connecting rods 12 and the transition modules 13 need to be changed, namely, the two groups of variable connecting rods 12 and the transition modules 13 rotate 180 degrees respectively by taking the connecting terminal connecting rods 11 as axes, 8 connecting screws 18 need to be taken down from the bottoms of the outer core bus bars 20 and the inner core bus bars 21 respectively, and then the transition modules 13 and the variable connecting rods 12 are inserted and fixed from the bottoms of the outer core bus bars 20 and the inner core bus bars 21 respectively at the positions of the corresponding bus bar fixing screw holes 17 after the variable connecting rods 12 and the transition modules 13 rotate.
The coaxial cable outer core 19 and the coaxial cable inner core 22 are respectively connected with a negative current flowing-back end and a positive current flowing-out end of the pulse high-current device.
As shown in fig. 3, the bus bar connector is shown in the state of fig. 1 as an initial state, and the polarity of the current input to the load coil in the vacuum chamber through the bus bar connector is changed by adjusting the connection manner of the 2 terminal assemblies and the bus bar 14. The polarity switching function of the bus bar connector is achieved by changing the positions of the variable connecting rod 12 and the transition module 13. In the case where one set of the variable connection bar 12 and the transition module 13 connects the positive electrode connection terminal 1 and the core bus bar 21, and the other set of the variable connection bar 12 and the transition module 13 connects the negative electrode connection terminal 2 and the core bus bar 20, when the direction of the exciting current supplied to the load coil by the pulse high-current device needs to be changed, after the connecting screw 18 is removed, the variable connection bar 12 and the transition module 13 connected to the core bus bar 21 are rotated by 180 degrees about the terminal connection bar 11, after the variable connecting rod 12 connected with the outer core bus bar 20 and the transition module 13 are rotated 180 degrees in the same way, the connection is carried out again through the connecting screw 18, at the moment, one group of variable connecting rods 12 and the transition module 13 are connected with the positive connecting terminal 1 and the outer core bus bar 20, and the other group of variable connecting rods 12 and the transition module 13 are connected with the negative connecting terminal 2 and the inner core bus bar 20, so that the conversion of current polarity is realized.
While the invention has been described with reference to several embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A variable polarity confluence wire connector for transmitting pulse large current to a vacuum chamber is characterized in that: it comprises a positive terminal (1), a negative terminal (2), a terminal fixing flange (3), a ceramic insulating sleeve (5), an in-cabin water pipe clamping sleeve (6), a metal conductor (7), a metal water pipe (9), an out-cabin water pipe clamping sleeve (10), a terminal connecting rod (11), a variable connecting rod (12), a transition module (13) and a busbar (14),
the positive connecting terminal (1) and the negative connecting terminal (2) have the same structure and function and are used as bridges for connecting a load coil in the vacuum chamber and a pulse current device outside the vacuum chamber;
the connecting terminal fixing flange (3) is fixedly connected with a flange of the vacuum bulkhead (4) and plays a role in sealing;
the ceramic insulating sleeve (5) is sleeved outside the metal conductor (7) and used for fixing the metal conductor (7) in the wiring terminal and insulating the metal conductor (7) from an external flange or other metals;
the metal conductor (7) is a conductive element of the wiring terminal, is a whole copper cylinder penetrating through the whole wiring terminal, and is used for connecting the input end and the output end of the load coil at the part positioned in the cabin and connecting a coaxial cable bus bar at the part positioned outside the cabin;
the cabin water pipe clamping sleeve (6) is used for connecting and sealing a water cooling pipe of the load coil and is connected with a metal water pipe (9), the metal water pipe (9) penetrates through the connecting terminal fixing flange (3) and is connected with the cabin outer water pipe clamping sleeve (10) after being fixed and sealed, and the cabin outer water pipe clamping sleeve (10) is connected with a water pipe of circulating cooling water equipment;
the connecting terminal connecting rod (11) is a metal conductor and is used for extending the metal conductor (7) and connecting the metal conductor (7) and the variable connecting rod (12),
the variable connecting rod (12) is a metal conductor, is connected with the transition module (13) and then is connected with the bus bar (14), the variable connecting rod (12) can rotate around the connecting rod (11) of the terminal for changing the polarity of current, before rotation, a clamping screw (16) at the end part needs to be unscrewed, and then the clamping screw (16) at the end part needs to be screwed after rotation to the position;
the transition module (13) is a metal conductor and is used for increasing the distance between the variable connecting rod (12) and the bus bar and preventing high-voltage breakdown;
the bus bar (14) is respectively connected with the positive connecting terminal (1) and the negative connecting terminal (2) and is used for converging the output current of each discharging module of the pulse high-current device outside the vacuum chamber and separating the current outflow end and the current return end of the coaxial cable;
the bus bar (14) comprises an outer core bus bar (20), an inner core bus bar (21) and a connecting screw (18), wherein the outer core bus bar (20) and the inner core bus bar (21) are both metal conductors, the outer core bus bar (20) and the inner core bus bar (21) are respectively connected with an outer core (19) of a coaxial cable and an inner core (22) of the coaxial cable and are used for converging output pulse currents of a plurality of discharging modules of the pulse high-current device, and the bus bars are expanded according to the number of actual discharging modules to be connected with different numbers of coaxial cables;
the transition module (13) is connected with the outer core bus bar (20) and the inner core bus bar (21) through the connecting screws (18), 2 groups are provided, each group is 4, and when the positions of the variable connecting rod (12) and the transition module (13) need to be changed, namely: the two groups of variable connecting rods (12) and the transition module (13) rotate 180 degrees respectively by taking the connecting terminal connecting rod (11) as an axis, after 8 connecting screws (18) are respectively taken down from the bottoms of the outer core bus bar (20) and the inner core bus bar (21), the transition module (13) and the variable connecting rods (12) are respectively inserted and fixed from the bottoms of the outer core bus bar (20) and the inner core bus bar (21) at the positions of corresponding bus bar fixing screw holes (17) after the variable connecting rods (12) and the transition module (13) rotate;
the coaxial cable outer core (19) and the coaxial cable inner core (22) are respectively connected with the negative current flowing-back end and the positive current flowing-out end of the pulse high-current device.
2. The bus connector of claim 1, further comprising a terminal fixing flange screws (8), wherein a is a positive integer, and the terminal fixing flange (3) is connected to the flange of the vacuum chamber wall (4) through the a terminal fixing flange screws (8).
3. A variable polarity busbar connector for delivering pulsed high currents into vacuum chambers as claimed in claim 2 wherein the entire copper pillar of metal conductor (7) is capable of delivering pulsed currents with maximum amplitude in excess of 18 kA and pulse width in excess of 200 ms.
4. A variable polarity bus bar connector for transmitting a large pulse current into a vacuum chamber as claimed in claim 3, wherein the length of the terminal connecting rod (11) is determined according to an actual installation position.
5. A variable polarity busbar connector for carrying pulsed high currents into a vacuum chamber as claimed in claim 4, further comprising B clamping screws (16), B being a positive integer, wherein the clamping screws (16) at the ends are loosened before rotation and the clamping screws (16) at the ends are tightened after rotation to a desired position.
6. A bus bar connector of variable polarity for delivering pulsed high currents into vacuum chambers, according to claim 5, characterized in that the height of the transition module (13) is determined by the actual installation position.
7. The polarity-changeable bus bar connector for transmitting pulsed large current into vacuum chamber as claimed in claim 6, further comprising C transition module fixing screws (15), D bus bar fixing screw holes (17), and E connecting screws (18), wherein C, D and E are positive integers;
the C transition module fixing screws (15) are used for fixing the transition modules (13);
and the busbar fixing screw hole (17) is used for inserting a connecting screw (18) so as to fix the transition module (13).
8. The bus connector with variable polarity for transmitting pulsed large current to the vacuum chamber according to claim 1, wherein the polarity switching function is achieved by changing the positions of the variable connecting rod (12) and the transition module (13), when one set of the variable connecting rod (12) and the transition module (13) connects the positive terminal (1) and the inner core bus bar (21), and the other set of the variable connecting rod (12) and the transition module (13) connects the negative terminal (2) and the outer core bus bar (20), and when it is necessary to change the direction of the excitation current supplied to the load coil by the pulsed large current device, after removing the connecting screw (18), loosening the clamping screw (16) at the end, rotating the variable connecting rod (12) and the transition module (13) connected with the inner core bus bar (21) 180 degrees around the terminal connecting rod (11), and then, after the variable connecting rod (12) and the transition module (13) which are connected with the outer core busbar (20) are rotated 180 degrees in the same way, the variable connecting rod and the transition module are connected again through the connecting screw 18, and finally the clamping screw (16) at the end part is screwed up, at the moment, one group of variable connecting rod (12) and the transition module (13) are connected with the positive connecting terminal (1) and the outer core busbar (20), and the other group of variable connecting rod (12) and the transition module (13) are connected with the negative connecting terminal (2) and the inner core busbar (21), so that the conversion of current polarity is realized.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111551031.2A CN114221182B (en) | 2021-12-17 | 2021-12-17 | Variable polarity confluence wire connector for transmitting pulse large current to vacuum chamber |
| GB2211417.7A GB2613918B (en) | 2021-12-17 | 2022-08-05 | Polarity-variable bus connector for transmitting pulsed high current into vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111551031.2A CN114221182B (en) | 2021-12-17 | 2021-12-17 | Variable polarity confluence wire connector for transmitting pulse large current to vacuum chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114221182A CN114221182A (en) | 2022-03-22 |
| CN114221182B true CN114221182B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111551031.2A Active CN114221182B (en) | 2021-12-17 | 2021-12-17 | Variable polarity confluence wire connector for transmitting pulse large current to vacuum chamber |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114221182B (en) |
| GB (1) | GB2613918B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709638B (en) * | 2022-06-07 | 2022-08-09 | 中国工程物理研究院流体物理研究所 | Be used for changeable dish that converges of many loads and connected mode |
| CN115548713B (en) * | 2022-09-27 | 2023-03-21 | 哈尔滨工业大学 | High-voltage wiring board for connecting high-power pulse power supply and multiple loads |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102354913A (en) * | 2011-11-01 | 2012-02-15 | 保定天威集团有限公司 | Intelligent photovoltaic header box and manufacturing method thereof |
| CN104158088B (en) * | 2014-08-27 | 2016-09-07 | 中国工程物理研究院流体物理研究所 | The flash current device that a kind of cable transmission multimode is confluxed |
| CN107786115A (en) * | 2018-01-09 | 2018-03-09 | 中国工程物理研究院流体物理研究所 | A kind of compact pulse high current device |
| CN114531054B (en) * | 2022-03-15 | 2022-10-21 | 哈尔滨工业大学 | Pulse power supply high-voltage wiring system for multiple different loads |
| CN114709638B (en) * | 2022-06-07 | 2022-08-09 | 中国工程物理研究院流体物理研究所 | Be used for changeable dish that converges of many loads and connected mode |
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2021
- 2021-12-17 CN CN202111551031.2A patent/CN114221182B/en active Active
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2022
- 2022-08-05 GB GB2211417.7A patent/GB2613918B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| GB202211417D0 (en) | 2022-09-21 |
| CN114221182A (en) | 2022-03-22 |
| GB2613918A (en) | 2023-06-21 |
| GB2613918B (en) | 2023-12-27 |
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