CN109036805A - A kind of Tesla pulse transformer of the secondary coil without support frame - Google Patents

A kind of Tesla pulse transformer of the secondary coil without support frame Download PDF

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Publication number
CN109036805A
CN109036805A CN201810962809.0A CN201810962809A CN109036805A CN 109036805 A CN109036805 A CN 109036805A CN 201810962809 A CN201810962809 A CN 201810962809A CN 109036805 A CN109036805 A CN 109036805A
Authority
CN
China
Prior art keywords
secondary coil
pulse transformer
support frame
tesla
magnetic core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810962809.0A
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Chinese (zh)
Inventor
樊旭亮
刘胜
王利民
潘亚峰
王俊杰
孙旭
王刚
范红艳
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Northwest Institute of Nuclear Technology
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Northwest Institute of Nuclear Technology
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Filing date
Publication date
Application filed by Northwest Institute of Nuclear Technology filed Critical Northwest Institute of Nuclear Technology
Priority to CN201810962809.0A priority Critical patent/CN109036805A/en
Publication of CN109036805A publication Critical patent/CN109036805A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306Fastening or mounting coils or windings on core, casing or other support

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

A kind of Tesla pulse transformer the invention discloses secondary coil without support frame, successively include outer cylinder, be used to support the intermediate aperture insulator in left and right two of inner cylinder, outer magnetic core, primary coil, inner magnetic core and the inner cylinder of outer barrel are sequentially coaxially set, further includes the taper secondary coil being suspended in insulating oil.The present invention solves the problems, such as the burr that existing Tesla pulse transformer secondary coil support introduces and microprotrusion easily leads to discharge breakdown or even fails, a megavolt structure for grade Tesla pulse transformer is greatly simplified, the operational reliability for improving megavolt grade Tesla pulse transformer is of great significance with the service life.The invention also has important references value for the high-tension transformer of civil field.

Description

A kind of Tesla pulse transformer of the secondary coil without support frame
Technical field
The invention belongs to technical field of pulse power, are related to a kind of Tesla pulse transforming of the secondary coil without support frame Device.
Background technique
Tesla pulse transformer is widely used a kind of pulse boosting converting means in Pulse Power Techniques.Mainly answer For promoting voltage in pulsed drive source, the secondary high pressure output of megavolt grade or more is obtained, for PFL charging Or it discharges to specific load.Tesla pulse transformer has principle is simple, compact-sized and boosting efficiency is high etc. Clear superiority.
In actual use, Tesla pulse transformer secondary generallys use fine copper wire coiling, and the number of turns is more than 1000 circles. Due to the weight of copper wire itself, in order to keep its concentricity, usually by copper wire winding on support frame.Common support rib Frame includes polyamide skeleton and electrician's cardboard skeleton, wherein being most widely used with electrician's cardboard skeleton, because it is soaked in transformation After in device oil, the relative dielectric constant being close with transformer oil can be reached, caused so as to avoid using polyamide skeleton Field strength concentrate.However found during actually using electrician's cardboard skeleton, since electrician's paperboard surface is also easy to produce burr, Simultaneously when fine copper wire is fixed on electrician's paperboard surface, glue need to be used to be bonded, so as to cause in electrician's cardboard and carefully The Tesla transformer secondary output surface of copper wire composition produces a large amount of burr and microscopic protrusions.These burrs and microscopic protrusions Discharge breakdown easily occurs under the occasion of megavolt step voltage, will lead to copper wire fracture when serious, so that whole device is lost Effect, causes irreversible damage.
Summary of the invention
In order to solve traditional Tesla pulse transformer secondary coil since the use of support frame is prone to discharge breakdown The problem of even failing, while following in high pressure occasion, structure should basic principle simple as far as possible, the present invention proposes a kind of time Grade Tesla pulse transformer of the coil without support frame, it is intended to simplify megavolt grade Tesla pulse transformer secondary coil, reduce The introducing of stray parameter, while the global reliability of transformer is improved, realize long-life failure-free operation.
The present invention uses density, as secondary rolling thread, secondary coil to be hanged close to the hollow metal tube of transformer oil Float in transformer oil, to eliminate the support frame of secondary coil, so that transformer device structure is greatly simplified, improves it in height It has a meeting, an audience, etc. well under one's control the reliability of conjunction.
The technical solution of the invention is as follows provides a kind of Tesla pulse transformer of the secondary coil without support frame, packet Outer magnetic core, primary coil, inner magnetic core and the inner cylinder for including outer cylinder, outer barrel being sequentially coaxially arranged in, further include being used to support The intermediate aperture insulator in left and right two of inner cylinder;
It is characterized in that
It further include taper secondary coil, high-voltage end, the low-pressure end of above-mentioned taper secondary coil connect with inner cylinder, outer cylinder respectively It connects, dielectric, the density of the density of taper secondary coil close to dielectric, it is ensured that taper time is full of between inner cylinder and outer cylinder Grade coil can be integrally suspended in dielectric.
Above-mentioned outer cylinder is in contact with outer magnetic core, and inner cylinder is in contact with inner magnetic core, and the effect of magnetic core is convergence magnetic field, improves coupling Close efficiency.Primary coil generally passes through external circuit and discharges, generate magnetic field by magnetic core couple and secondary coil in, Voltage increase is obtained on secondary coil, taper secondary coil bigger diameter end is connected with outer cylinder, and miner diameter end is connected with inner cylinder, High voltage output Positioned at miner diameter end, generated high pressure realizes coaxial output by inner cylinder.
Further, the coiling using hollow metal line as taper secondary coil.
Further, coiling is carried out using hollow copper tubing or aluminum pipe, coiling itself there should be some strength, can Guarantee fundamental strength.
Further, using 45# transformer oil as dielectric.
Further, in order to which the coiling for enabling secondary coil guarantees that fundamental strength, the outer radius of above-mentioned hollow copper tubing are big In 3mm
Further, outer magnetic core and inner magnetic core are all made of silicon steel sheet as core material.
Further, the material of outer cylinder and inner cylinder is stainless steel.
Further, number of primary turns 1 is installed using copper sheet along outer magnetic core circumferencial direction.
The beneficial effects of the present invention are:
1, Tesla pulse transformer of the secondary coil provided by the invention without support frame, eliminates the electricity of secondary coil Work cardboard or nylon support frame reduce the introducing of stray parameter, and transformer global reliability is high, long service life, for this It initiates in field;
2, Tesla pulse transformer of the secondary coil provided by the invention without support frame, enormously simplify megavolt grade with On Tesla pulse transformer structure, realize zero introducing of non-functional component, for improve the above Tesla pulse of megavolt grade The Stability and dependability of transformer is of great significance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Appended drawing reference in figure are as follows: 1- outer cylinder, the outer magnetic core of 2-, 3- primary coil, 4- secondary coil, 5- inner magnetic core, 6- inner cylinder, 7,8- are used to support the intermediate aperture insulator in left and right two of inner cylinder.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and It is not to limit.
Embodiment one
It will be seen from figure 1 that the present invention includes outer cylinder 1, and outer magnetic core 2, primary coil 3, secondary coil 4, inner cylinder 6, interior magnetic The intermediate aperture insulator 7,8 of core 5 and the left and right two for being used to support inner cylinder is realized positioned at the left and right ends of device to inner cylinder Integrated support, guarantees the alignment of inner/outer tube.
Outer cylinder 1 and inner cylinder 6 are using stainless steel progress machine-shaping, and primary coil 3 is using the monolith copper sheet edge with a thickness of 1mm Outer 2 circumferencial direction of magnetic core installation, being equivalent to 3 the number of turns of primary coil is 1.It should insulate between copper sheet and outer magnetic core 2.Outer magnetic core 2 And inner magnetic core 5 is all made of the strip silicon steel progress closed assembly of 0.05mm, avoids eddy-current loss and too early saturation.
The coiling for carrying out secondary coil 4 in the present embodiment using hollow copper tubing, should make particular manufacturing craft, on it coiling Break away from moulds again after completing.Using 45# transformer oil as dielectric, density 895kg/m3, the density of copper is general For 8900kg/m3, i.e., about ten times of transformer oil.By calculating, used hollow copper tubing inside radius rIt is interiorWith outer radius rOutsideIt answers Meet following relationship:
r2 Outside/r2 It is interior=10/9
Meet the copper pipe of the condition, can be suspended in transformer oil, also can guarantee concentricity without supporting.Premise It is that copper pipe itself has certain structural strength, selection outer radius is greater than the copper pipe of 3mm in the present embodiment.
Taper die is made, hollow copper tubing coiling secondary coil, about 1000 circles, after the completion whole removing are used on mold Mold, and be installed between inner/outer tube, bigger diameter end is connect to be grounded with outer cylinder, and miner diameter end is connect with inner cylinder, and high pressure is by interior The coaxial output of cylinder.The transformer ideally can be realized 1000 times of voltage increase.

Claims (8)

1. a kind of Tesla pulse transformer of secondary coil without support frame, including outer cylinder, sequentially coaxially setting are in outer barrel Outer magnetic core, primary coil, inner magnetic core and inner cylinder, further include the intermediate aperture insulator in left and right two for being used to support inner cylinder;
It is characterized by:
It further include taper secondary coil, high-voltage end, the low-pressure end of the taper secondary coil are connect with inner cylinder, outer cylinder respectively, interior Dielectric, the density of the density of taper secondary coil close to dielectric, it is ensured that taper secondary wire are full of between cylinder and outer cylinder Circle is whole to be suspended in dielectric.
2. Tesla pulse transformer of the secondary coil according to claim 1 without support frame, it is characterised in that: use Coiling of the hollow metal line as taper secondary coil.
3. Tesla pulse transformer of the secondary coil according to claim 2 without support frame, it is characterised in that: described Hollow metal line is hollow copper tubing or aluminum pipe.
4. Tesla pulse transformer of the secondary coil according to claim 3 without support frame, it is characterised in that: use 45# transformer oil is as dielectric.
5. Tesla pulse transformer of the secondary coil according to claim 4 without support frame, it is characterised in that: described The outer radius of hollow copper tubing is greater than 3mm.
6. Tesla pulse transformer of the secondary coil according to claim 1 without support frame, it is characterised in that: outer magnetic Core and inner magnetic core are all made of silicon steel sheet as core material.
7. Tesla pulse transformer of the secondary coil according to claim 1 without support frame, it is characterised in that: outer cylinder And the material of inner cylinder is stainless steel.
8. Tesla pulse transformer of the secondary coil according to claim 1 without support frame, it is characterised in that: primary Coil turn is 1, is installed using copper sheet along outer magnetic core circumferencial direction.
CN201810962809.0A 2018-08-22 2018-08-22 A kind of Tesla pulse transformer of the secondary coil without support frame Pending CN109036805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810962809.0A CN109036805A (en) 2018-08-22 2018-08-22 A kind of Tesla pulse transformer of the secondary coil without support frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810962809.0A CN109036805A (en) 2018-08-22 2018-08-22 A kind of Tesla pulse transformer of the secondary coil without support frame

Publications (1)

Publication Number Publication Date
CN109036805A true CN109036805A (en) 2018-12-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114942353A (en) * 2022-03-07 2022-08-26 西安交通大学 Electromagnetic pulse simulation device and assembly method

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CN107025985A (en) * 2017-03-23 2017-08-08 西北核技术研究所 Tesla magnetic core of transformers and transformer with cushion and the magnetic core preparation method
CN208819718U (en) * 2018-08-22 2019-05-03 西北核技术研究所 A kind of Tesla pulse transformer of the secondary coil without support frame
KR102252463B1 (en) * 2020-12-15 2021-05-14 주식회사 리플렉스 Secondary winding for high voltage transformer and high voltage transformer with the same

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CN107025985A (en) * 2017-03-23 2017-08-08 西北核技术研究所 Tesla magnetic core of transformers and transformer with cushion and the magnetic core preparation method
CN208819718U (en) * 2018-08-22 2019-05-03 西北核技术研究所 A kind of Tesla pulse transformer of the secondary coil without support frame
KR102252463B1 (en) * 2020-12-15 2021-05-14 주식회사 리플렉스 Secondary winding for high voltage transformer and high voltage transformer with the same

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李名加;常安碧;康强;辛佳琪;: "Tesla变压器锥形绕组电压分布实验研究", 高电压技术, no. 11, 15 November 2007 (2007-11-15) *
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN114942353A (en) * 2022-03-07 2022-08-26 西安交通大学 Electromagnetic pulse simulation device and assembly method
CN114942353B (en) * 2022-03-07 2024-03-15 西安交通大学 Electromagnetic pulse simulation device and assembly method

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