CN108565101A - All-solid-state light 100 kV-level pulse transformer and manufacturing method thereof - Google Patents

All-solid-state light 100 kV-level pulse transformer and manufacturing method thereof Download PDF

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Publication number
CN108565101A
CN108565101A CN201810291934.3A CN201810291934A CN108565101A CN 108565101 A CN108565101 A CN 108565101A CN 201810291934 A CN201810291934 A CN 201810291934A CN 108565101 A CN108565101 A CN 108565101A
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transformer
primary coil
coil
primary
outer barrel
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CN108565101B (en
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殷毅
张天洋
杨建华
陈冬群
闵亚飞
张自成
申倩倩
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National University of Defense Technology
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National University of Defense Technology
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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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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
    • H01F27/2823—Wires
    • 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
    • H01F27/2847—Sheets; Strips
    • 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
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • 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
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/061—Winding flat conductive wires or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

The invention provides an all-solid-state light 100 kV-level pulse transformer and a manufacturing method thereof, belonging to the technical field of pulse transformers. The secondary coil is wound on the inner cylinder of the transformer. The transformer outer cylinder is sleeved on the outer side of the transformer inner cylinder wound with the secondary coil, the primary coil I and the primary coil II are wound on the outer side of the transformer outer cylinder, and the starting ends of the primary coil I and the primary coil II are respectively led out through bolts and are connected through copper bars to form a primary coil input end. The invention does not need transformer oil insulation, has no magnetic core, and realizes the compact, all solid and light weight of the whole transformer. Compared with an oil-insulated transformer, the transformer has better environmental adaptability, such as performance at high and low temperatures.

Description

All solid state light-duty 100kV grades of pulse transformer of one kind and preparation method thereof
Technical field
The present invention relates to pulse transformer technical fields, particularly, are related to a kind of all solid state light-duty 100kV grades of pulse transforming Device and preparation method thereof.
Background technology
Transformer is can the electric energy in a circuit to be passed through magnetic field transmission based on Faraday's electromagnetic induction law To the calutron in another circuit.Pulse transformer is a kind of specific type of transformer, and what it was converted is not to continue Voltage, but pulse voltage.Recently as pulse power device in medical treatment, food sterilization, High-Power Microwave, superlaser The extensive use in the fields such as device, pulse transformer are widely studied as the main boost module of pulse power device, it It is the important device for realizing high voltage output, increasingly higher demands is also proposed to it, such as requires to improve change in civil field The energy efficiency of depressor reduces use cost；In military field, it is flat that research is applied to the flights such as unmanned plane, aircraft or guided missile The pulse power device of platform, it is desirable that transformer has many advantages, such as that small, light-weight, environmental suitability is strong, efficient.
Existing High voltage pulse transformer is to improve the coefficient of coup and energy efficiency generally use closed magnetic core or open circuit Magnetic Core Design【Zhang Yu, Liu Jinliang, Cheng new recruit etc., the high voltage closure small-sized pulse transforming of magnet ring, light laser and the particle beams, 2010, 22(12):3047-3051；The experiment of Zhang Zicheng, Yang Hanwu, Zhang Jiande etc., compact repetition Tesla transformer type modulators are ground Study carefully, light laser and the particle beams, 2008,20 (8):1392-1396.】, due to the use of magnetic core, compared to coreless transformer, Design difficulty, cost, volume, weight also greatly increase.In addition the above-mentioned pulse transformer referred to, load are pulse shaping Line, it is only several~several nanofarads of zero to form line equivalent capacity, and rechargeable energy is only several joule~hundreds of joule, therefore is become The time of the charging of depressor is very short, usually less than 10 microseconds.However in many applications, the load equivalent of pulse transformer charging Capacitance is microfarad magnitude, such as type load occurs for Marx, pulse forming network type loads, and the charge cycle of transformer reaches at this time Microseconds tens of or even up to a hundred are arrived, transmission energy, which reaches, also reaches tens of kJ.In this case, the weight of magnetic core need to be increased, this It is since it is considered that magnetic core of transformer magnetic saturation problem, core operating point should not be at saturation magnetic flux density Bs, magnetic core has Effect sectional area Se needs to meet
Wherein Smin is magnetic core minimum effective sectional area, Δ BmaxFor the maximum variable quantity of magnetic core magnetic induction intensity, slightly smaller than The saturation induction density B of magnetic materialS, U0For charging voltage on primary capacitance, tzWhen to reach maximum charging voltage Charging time.
From formula it is found that the increase in charging time will cause magnetic core of transformer sectional area to increase, therefore in the case of this kind The weight of pulse transformer only magnetic core is greater than the sum of transformer other parts weight；Additionally due to introducing magnetic core, while being anti- Only high-voltage breakdown between primary and secondary coil, such inside transformer are usually insulated with transformer oil, to ensure transformer oil sealing also It need to consider that sealing ring and the design of corresponding clamping screw, these factors all make the weight of transformer dramatically increase.According to tradition Design of transformer method, 100kV grades of pulse transformers, its weight can not adapt to compact, light in 50kg or so after the completion of design The application scenarios that 100kV grades of transformers of type require.
Based on above-mentioned analysis, it is necessary to the design for carrying out 100kV level full solid state light high pressure pulse transformers is new to meet The demand of military affairs and civil field under situation.
Invention content
Deficiency to solve the above-mentioned problems, present invention aims at provide a kind of all solid state light-duty 100kV grades of pulse change Depressor and preparation method thereof, the transformer are not necessarily to additional magnetic core, and entire transformer uses insulating cement embedding, transless oils high Insulating liquid is pressed, without extra screw rod, sealing baffle, weight is only 10kg or so, and research can promote such pulse transformer Application in civilian and military field.Be mainly used for high power pulse modulator, high-power microwave source, food sterilization, medical treatment and The technical fields such as environmental protection.
To achieve the above object, the present invention provides a kind of all solid state light-duty 100kV grades of pulse transformers, including transformer Outer barrel, transformer inner cylinder, High voltage output end-stopping plate, high-voltage output end, secondary coil, primary coil input terminal, primary coil I, Primary coil II, primary holding altogether and low pressure end-stopping plate；The secondary coil is wound on transformer inner cylinder, outside the transformer Jacket casing is located on the outside of the transformer inner cylinder for being wound with secondary coil, and the primary coil I and primary coil II are wound on transformer On the outside of outer barrel, the initiating terminal of primary coil I and primary coil II is drawn through copper bar by bolt respectively and is connected to form primary line The end of circle input terminal, the primary coil I and primary coil II is drawn through copper bar by bolt and is connected to form primary altogether End；The high-voltage output end baffle plate setting is arranged in one end of transformer outer barrel, the high-voltage output end in High voltage output terminal block On plate, the other end of the low-pressure end baffle plate setting in transformer outer barrel.
In said program, preferably secondary coil is closely wound on using enameled wire on transformer inner cylinder, in secondary wire Before enclosing coiling, it is pre-coated with insulated paint in transformer inner cylinder outer surface, is coated again absolutely on secondary coil surface after the completion of coiling Edge paint.
In said program, preferably transformer outer barrel is made of nylon-type or insulating polymeric material, outside transformer The outside of cylinder is provided with rectangular coil groove, and for fixing primary coil I and primary coil II, helicla flute turn-to-turn has 3mm or more Interval, for insulation between primary coil I or primary coil II.
In said program, preferably primary coil I and primary coil II use copper strips, primary coil I and primary coil II fixation is wound in the groove on the outside of transformer outer barrel.
In said program, preferably space of the High voltage output end-stopping plate between secondary coil and primary coil I is opposite On the position answered, N number of through-hole is offered, for the insulating cement perfusion between secondary coil and primary coil I, wherein N >=3, N are just Integer.
In said program, preferably low pressure end-stopping plate is an annular insulating material, is provided centrally with open circles, and annular is outer Diameter is consistent with transformer outer barrel overall diameter, and annular interior diameter is less than interior diameter of the transformer inner cylinder close to holding altogether part.
In said program, the preferably both sides of the face of the both sides of the face of transformer outer barrel and transformer inner cylinder are both provided with O-ring groove, o-ring groove is equipped with sealing ring, during encapsulating, prevents insulation encapsulated glue from overflowing.
The invention also includes jig plate I, jig plate II and screw rod, the jig plate I and jig plate II are set as stainless steel The diameter of annulus, annulus is more than transformer outer barrel diameter, and screw hole is designed on each annular ring peripheral, jig plate I and folder It is both provided with an annular convex platform on tool plate II, N number of through-hole, wherein N >=3 are provided on jig plate I, N is positive integer, through-hole and height Encapsulating lead to the hole site on pressure output end-stopping plate is corresponding；Screw rod both ends are separately positioned on II screw hole of jig plate I and jig plate It goes up and tenses setting.
A kind of production method of all solid state light-duty 100kV grades of pulse transformer, includes the following steps：
Step 1 completes secondary coil in transformer inner cylinder coiling, by primary coil I and primary coil II in transformer Outer barrel coiling is completed, and complete primary coil input terminal, primary holding altogether is connected with high-voltage output end, transformer outer barrel is arranged It is being wound on the outside of the transformer inner cylinder of secondary coil；
Low pressure is fixed by the boss of jig plate II in step 2, the top that low pressure end-stopping plate is placed on to jig plate II The position of end-stopping plate is placed on low pressure end-stopping plate (9) vertically by transformer that step 1 completes is primary and secondary；
Step 3 is sequentially placed High voltage output end-stopping plate and jig plate I above；
Step 4, the screw hole that screw rod is passed through to jig plate I and jig plate II, and tense so that transformer both ends sealing ring is close Envelope is good；
The transformer that step 4 is made is placed on vacuum environment 5 hours or more by step 5, then by the insulation after heating Glue pours into transformer by the aperture on High voltage output end-stopping plate；
Step 6, in vacuum tank, after insulating cement is fully cured, transformer is taken out；
Step 7 removes screw rod, removal fixture, completes the making of all solid state 100kV grades of transformer.
Insulating cement in the step 5 uses the insulating cement high pressure resistant, temperature flowing is good, it is ensured that transformation during encapsulating The intermediate bubble-free of device；Under the conditions of ensureing that insulation distance is met the requirements in design of transformer, reduce primary and secondary of transformer absolutely Edge distance, to further increase the coefficient of coup of transformer；During step 5 seals encapsulating, heating can be used and mutually tied with vibration It closes, convenient for excluding inside transformer bubble.
The invention has the advantages that：
The present invention does not need transformer oil insulation, and no magnetic core, entire transformer is realized compact, all solid state, light-weight；It compares In oil insulated transformer, which has better environmental suitability, such as performance under high and low temperature；Special fixture is devised, Transformer manufacturing process is simple, easy for installation.
Other than objects, features and advantages described above, the present invention also has other objects, features and advantages. Below with reference to figure, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is apparatus of the present invention structure chart；
Fig. 2 is the Transformer fixture structural schematic diagram of the present invention；
Fig. 3 is all solid state transformer surface structure schematic diagram of the present invention；
Fig. 4 is the transformer output voltage and current waveform figure of the present invention.
Figure label：1 transformer outer barrel, 2 transformer inner cylinders, 3 High voltage output end-stopping plates, 4 high-voltage output ends, 5 secondary wires Circle, 6 primary coil input terminals, 7-1 primary coils I, 7-2 primary coils II, 8 primary and secondary holding altogethers, 9 low pressure end-stopping plates, 10 folders Have plate I, 11 jig plates II, 12 screw rods.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim Fixed and covering multitude of different ways is implemented.
A kind of all solid state light-duty 100kV grades of pulse transformer, as shown in Figure 1, including transformer outer barrel 1, transformer inner cylinder 2, High voltage output end-stopping plate 3, high-voltage output end 4, secondary coil 5, primary coil input terminal 6, I 7-1 of primary coil, primary coil II 7-2, primary and secondary holding altogether 8 and low pressure end-stopping plate 9.The transformer is not necessarily to additional magnetic core, and entire transformer is filled using insulating cement Envelope, transless oils high pressure insulating liquid, without extra screw rod, sealing baffle, weight is only 10kg or so, and research can promote Application into such pulse transformer in civilian and military field.
Secondary coil 5 is wound on transformer inner cylinder 2, and the transformer outer barrel 1 is set in the change for being wound with secondary coil 5 2 outside of depressor inner cylinder.I 7-1 of primary coil and II 7-2 of primary coil is wound on the outside of transformer outer barrel 1, I 7-1 of primary coil and The initiating terminal of II 7-2 of primary coil is drawn through copper bar by bolt respectively and is connected to form primary coil input terminal 6.Primary coil The end of II 7-2 of I 7-1 and primary coil is drawn through copper bar by bolt and is connected to form primary and secondary holding altogether 8.Secondary coil 5 It is closely wound on transformer inner cylinder 2 using enameled wire, before 5 coiling of secondary coil, is applied in advance in 2 outer surface of transformer inner cylinder There is insulated paint, insulated paint is coated again on 5 surface of secondary coil after the completion of coiling.Transformer outer barrel 1 is by nylon-type or high score Insulating sublayer material is made, and the outside of transformer outer barrel 1 is provided with rectangular coil groove, for fixing I 7-1 of primary coil and primary II 7-2 of coil, helicla flute turn-to-turn have the interval of 3mm or more, for the insulation between II 7-2 of I 7-1 of primary coil or primary coil. I 7-1 of primary coil and II 7-2 of primary coil uses copper strips, I 7-1 of primary coil and primary coil II 7-2 fixations to be wound on transformation In the groove in 1 outside of device outer barrel.2 outer surface of transformer inner cylinder is pre-coated with epoxy glue class insulated paint, in transformation after the completion of coiling Epoxy glue class insulated paint is coated again in 5 surface of secondary coil of device.Its purpose on the one hand for enhance it is primary and secondary between insulate, On the other hand it is mainly used for fixed transformer secondary coil 5, avoids in the charge cycle of hundred Microsecond grades, secondary coil passes through number When the electric current of kilo-ampere, secondary coil falls off caused by coil turn-to-turn electric power is excessive.Experiment shows using this kind of mode coiling Transformer is for when charging to high-voltage capacitance class load pulse, secondary coil can to bear the thousands of peaces of electric current without being scattered. To further decrease the impedance loop of primary, raising transformer efficiency, primary copper strips is divided to two groups of parallel connection coilings, Every group of primary N circle, two groups of primary coil initiating terminals draw transformer outer barrel by copper screw bolt, outside transformer simultaneously by copper bar Connection, as holding altogether.Two groups of primary coil ends are drawn by copper screw bolt, in transformer parallel connection outside, as primary High voltage input terminal.Test surface by this kind design, primary copper strips by pulse current 100kA, It remains to working properly.
High voltage output end-stopping plate 3 is arranged in one end of transformer outer barrel 1.High-voltage output end 4 is arranged in High voltage output terminal block On plate 3.The other end in transformer outer barrel 1 is arranged in low pressure end-stopping plate 9.High voltage output end-stopping plate has a copper spiral shell at center Bar is connected with transformer secondary output output, the high-voltage output end as transformer；Transformer exports end-stopping plate, at the beginning of with transformer, On the corresponding position in space between secondary, it is provided with N (N >=3) a through-hole, primary and secondary insulating cement of for transformer Perfusion.Low-voltage output baffle is an annular insulating material, and annular overall diameter is consistent with transformer outer barrel overall diameter, straight in annular Diameter is slightly less than interior diameter of the transformer inner cylinder close to holding altogether part.Transformer inner cylinder and transformer outer barrel, on two cylinder both sides All there are o-ring grooves, and sealing ring is housed.During transformer encapsulating, prevent insulation encapsulated glue from overflowing.Transformer Insulation encapsulated is carried out using insulating cement between primary and secondary.To such all solid state transformer encapsulating, specially to have made a sleeve clamp. On the corresponding position in space of the High voltage output end-stopping plate 3 between secondary coil 5 and I 7-1 of primary coil, offer N number of logical Hole, for the insulating cement perfusion between II 7-2 of secondary coil 5 and I 7-1 of primary coil and primary coil, wherein N >=3, N are just whole Number.Low pressure end-stopping plate 9 is an annular insulating material, is provided centrally with open circles, annular overall diameter and transformer outer barrel overall diameter Unanimously, annular interior diameter is less than interior diameter of the transformer inner cylinder close to holding altogether part.Two end side surfaces of transformer outer barrel 1 and change Two end side surfaces of depressor inner cylinder 2 are both provided with o-ring groove, and o-ring groove is equipped with sealing ring, during encapsulating, prevent Only insulation encapsulated glue overflows.Fixture includes jig plate I 10, jig plate II 11 and screw rod 12.Jig plate I 10 and jig plate II 11 are set It is set to stainless steel annulus, the diameter of annulus is more than transformer outer barrel diameter, and is designed with screw hole on each annular ring peripheral, presss from both sides It is both provided with an annular convex platform on tool plate I 10 and jig plate II 11.N number of through-hole, wherein N >=3 are provided on jig plate I 10, N is Positive integer.Through-hole is corresponding with the encapsulating lead to the hole site on High voltage output end-stopping plate 3.12 both ends of screw rod are separately positioned on jig plate I 10 and II 11 screw hole of jig plate on and tense setting.
Transformer outer barrel maximum gauge 230mm, axial length 230mm, primary is using width 12mm, thickness 2mm Copper strips coiling, totally 5.5 circle, after two primary parallels, 5.2 μ H of inductance.
Transformer secondary output is formed using the close transformer inner cylinder outer surface for being wound on taper of enameled wire of a diameter of 1mm, the number of turns The outer radius of 190 circles, transformer taper inner cylinder both ends distinguishes 90mm and 100mm, and actual measurement transformer secondary output is inductance 4.2mH. In the case of being not added with magnetic core, transformer coupling coefficient 0.87, transformer voltage ratio 24 are surveyed.
Designed Transformer fixture is two stainless steel annulus, referring to Fig. 2, respectively high-pressure side fixture 1 and low-pressure end Fixture 2, high and low pressure side annulus are designed with positioning convex platform, are diameter 280mm outside annulus, transformer is placed on two folders Tool is intermediate, and by screw-pressing transformer high-voltage, low pressure end-stopping plate, production method as described above completes transformer Embedding, remove after fixture highest pressure resistance up to the transformer total weight of 120kV be only 11kg.
To verify the characteristic of embodiment, experimental verification has been carried out according to design.Selection primary capacitance is Cp= 1.2mF, initial charge voltage 5kV, 1 μ F of transformer secondary output capacitance, experiment measure ceiling voltage 120kV in load capacitance, at this time Corresponding 82 μ s of charging time, transformer primary current maximum 85kA, secondary current maximum 2.25kA, transmission energy 7.2kJ；Transformation Device working performance is good.The voltage and transformer primary current waveform of transformer secondary output output are as shown in Figure 4.
100kV level full solid states pulse transformer arrangement of the present invention, without additional magnetic core, transless oil-insulation, complete Solid-state, compact-sized, weight only needs~10kg, greatly reduces the weight and volume of traditional 100kV grade pulse transformers.Together When the transformer due to all solid state, there is wider temperature working range.The all solid state light-duty pulse transformer structure Simply, reasonable design, easy to use, for promoting the type transformer in military, civil field extensively using significant.
A kind of production method of all solid state light-duty 100kV grades of pulse transformer, includes the following steps：
Step 1 completes secondary coil 5 in 2 coiling of transformer inner cylinder, by II 7-2 of I 7-1 of primary coil and primary coil It is completed in 1 coiling of transformer outer barrel, and is respectively completed primary coil input terminal 6, primary and secondary holding altogether 8 and high-voltage output end 4 and connects It connects, transformer outer barrel 1 is set in 2 outside of transformer inner cylinder for being wound with secondary coil 5.In design of transformer ensure insulation away from Under the conditions of meeting the requirements, reduce primary and secondary insulation distance of transformer, to further increase the coefficient of coup of transformer.Become The input of depressor primary is introduced using low inductance, and reducing stray parameter influences, and improves energy efficiency.
Step 2, the top that low pressure end-stopping plate 9 is placed on to jig plate II 11, are consolidated by the boss of jig plate II 11 The position for determining low pressure end-stopping plate 9 is placed on low pressure end-stopping plate (9) vertically by transformer that step 1 completes is primary and secondary.
Step 3 is sequentially placed High voltage output end-stopping plate 3 and jig plate I 10 above.
Step 4, the screw hole that screw rod 12 is passed through to jig plate I 10 and jig plate II 11, and tense so that transformer both ends are close Seal good seal.Transformer high-voltage output end uses the structure design of indent, referring to Fig. 1, reduces transformer axial length, knot Structure is more compact.The transformer that step 4 is made is placed on vacuum environment 5 hours or more by step 5, then will be after heating Insulating cement pours into transformer by the aperture on High voltage output end-stopping plate 3.Insulating cement selects good exhausted of high pressure, temperature flowing Edge glue, it is ensured that the intermediate bubble-free of transformer during encapsulating.During sealing encapsulating, heating can be used and vibration is combined, Convenient for excluding inside transformer bubble.
Step 6, in vacuum tank, after insulating cement is fully cured, transformer is taken out.
Step 7 removes screw rod, removal fixture, completes the making of all solid state 100kV grades of transformer.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of all solid state light-duty 100kV grades of pulse transformer, which is characterized in that including transformer outer barrel (1), transformer inner cylinder (2), High voltage output end-stopping plate (3), high-voltage output end (4), secondary coil (5), primary coil input terminal (6), primary coil I (7-1), primary coil II (7-2), primary and secondary holding altogether (8) and low pressure end-stopping plate (9)；The secondary coil (5) is wound on change On depressor inner cylinder (2), the transformer outer barrel (1) is set on the outside of the transformer inner cylinder (2) for being wound with secondary coil (5), institute It states primary coil I (7-1) and primary coil II (7-2) is wound on the outside of transformer outer barrel (1), primary coil I (7-1) and primary The initiating terminal of coil II (7-2) is drawn through copper bar by bolt respectively and is connected to form primary coil input terminal (6), the primary The end of coil I (7-1) and primary coil II (7-2) is drawn through copper bar by bolt and is connected to form primary and secondary holding altogether (8)； In one end of transformer outer barrel (1), high-voltage output end (4) setting is defeated in high pressure for High voltage output end-stopping plate (3) setting Go out on end-stopping plate (3), the other end of low pressure end-stopping plate (9) setting in transformer outer barrel (1).
2. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 1, which is characterized in that the secondary Coil (5) is closely wound on using enameled wire on transformer inner cylinder (2), before secondary coil (5) coiling, in transformer inner cylinder (2) outer surface is pre-coated with insulated paint, and insulated paint is coated again on secondary coil (5) surface after the completion of coiling.
3. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 1, which is characterized in that the transformation Device outer barrel (1) is made of nylon-type or insulating polymeric material, and it is recessed to be provided with rectangular coil on the outside of transformer outer barrel (1) Slot, for fixing primary coil I (7-1) and primary coil II (7-2), helicla flute turn-to-turn has the interval of 3mm or more, for primary Insulation between coil I (7-1) or primary coil II (7-2).
4. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 3, which is characterized in that the primary Coil I (7-1) and primary coil II (7-2) use copper strips, primary coil I (7-1) and primary coil II (7-2) fixation to be wound on In groove on the outside of transformer outer barrel (1).
5. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 1, which is characterized in that the high pressure It exports on the corresponding position in end-stopping plate (3) space between secondary coil (5) and primary coil I (7-1), offers N number of Through-hole is perfused, wherein N >=3 for the insulating cement between secondary coil (5) and primary coil I (7-1) and primary coil II (7-2), N is positive integer.
6. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 1, which is characterized in that the low pressure End-stopping plate (9) is an annular insulating material, is provided centrally with open circles, and annular overall diameter is consistent with transformer outer barrel overall diameter, Annular interior diameter is less than interior diameter of the transformer inner cylinder close to holding altogether part.
7. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 2, which is characterized in that the transformation The both sides of the face of device outer barrel (1) and the both sides of the face of transformer inner cylinder (2) are both provided with o-ring groove, and o-ring groove is equipped with Sealing ring prevents insulation encapsulated glue from overflowing during encapsulating.
8. all solid state light-duty 100kV grades of pulse transformer of one kind according to claim 5, which is characterized in that further include folder Have plate I (10), jig plate II (11) and screw rod (12), the jig plate I (10) and jig plate II (11) are set as stainless steel circle Ring, the diameter of annulus is more than transformer outer barrel diameter, and screw hole is designed on each annular ring peripheral, jig plate I (10) and It is both provided with an annular convex platform on jig plate II (11), N number of through-hole, wherein N >=3 are provided on jig plate I (10), N is just whole Number, through-hole are corresponding with the encapsulating lead to the hole site on High voltage output end-stopping plate (3)；Screw rod (12) both ends are separately positioned on jig plate On I (10) and jig plate II (11) screw hole and tense setting.
9. special according to a kind of production method of all solid state light-duty 100kV grades of pulse transformer of claim 1-8 any one Sign is, includes the following steps：
Step 1 completes secondary coil (5) in transformer inner cylinder (2) coiling, by primary coil I (7-1) and primary coil II (7-2) is completed in transformer outer barrel (1) coiling, and is respectively completed primary coil input terminal (6), primary and secondary holding altogether (8) and height It presses output end (4) to install, transformer outer barrel (1) is set on the outside of the transformer inner cylinder (2) for being wound with secondary coil (5)；
Step 2, the top that low pressure end-stopping plate (9) is placed on to jig plate II (11) are carried out by the boss of jig plate II (11) The position of fixed low pressure end-stopping plate (9) is placed on low pressure end-stopping plate (9) by transformer that step 1 completes is primary and secondary vertically On；
Step 3 is sequentially placed High voltage output end-stopping plate (3) and jig plate I (10) above；
Step 4, the screw hole that screw rod (12) is passed through to jig plate I (10) and jig plate II (11), and tense so that transformer both ends Sealing ring good seal；
The transformer that step 4 is made is placed on vacuum environment 5 hours or more by step 5, then leads to the insulating cement after heating The aperture crossed on high-voltage output end baffle (3) pours into transformer；
Step 6, in vacuum tank, after insulating cement is fully cured, transformer is taken out；
Step 7 removes screw rod, removal fixture, completes the making of all solid state 100kV grades of transformer.
10. a kind of production method of all solid state light-duty 100kV grades of pulse transformer according to claim 1, feature exist In the insulating cement in the step 5 uses the insulating cement high pressure resistant, temperature flowing is good, it is ensured that transformer during encapsulating Intermediate bubble-free；Under the conditions of ensureing that insulation distance is met the requirements in design of transformer, reduce the insulation of primary and secondary of transformer away from From to further increase the coefficient of coup of transformer；During step 5 seals encapsulating, heating can be used and vibration is combined, just In exclusion inside transformer bubble.
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CN113871194A (en) * 2021-09-30 2021-12-31 中国人民解放军国防科技大学 Combined insulation method of high-voltage pulse transformer and high-voltage pulse transformer

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CN113871194B (en) * 2021-09-30 2024-01-12 中国人民解放军国防科技大学 Combined insulation method of high-voltage pulse transformer and high-voltage pulse transformer

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