CN102930960B - For the primary lead interface of Tesla type pulse transformer - Google Patents
For the primary lead interface of Tesla type pulse transformer Download PDFInfo
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- CN102930960B CN102930960B CN201210288547.7A CN201210288547A CN102930960B CN 102930960 B CN102930960 B CN 102930960B CN 201210288547 A CN201210288547 A CN 201210288547A CN 102930960 B CN102930960 B CN 102930960B
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Abstract
The present invention relates to a kind of primary lead interface for Tesla type pulse transformer, belong to technical field of high voltage.This primary lead interface, mainly comprises single turn metal foil belt primary coil 1, cylindrical shell insulating part 2, pulse forming line urceolus 3, top electrode 4, upper metal platen 5, upper insulating part 6, metal leading-out piece 7, insulation spacer 8, lower insulating part 9, lower metal platen 10, bottom electrode 11, securing member insulating case 12.Through experimental verification, the sealing and 2 of inside transformer 0.1 ~ 0.5Mpa oil pressure at-40 DEG C to+50 DEG C temperature can be realized for the primary lead interface of Tesla type pulse transformer, 000, the feed-in of 000 10kA/10us magnitude pulse current, indicate this interface and there is good mechanical erection performance and electric property, take into account heat radiation and sealing property simultaneously, solve the problem of Tesla type pulse transformer primary big current feed-in, be applicable to the transformer device structure that other need elementary big current feed-in.
Description
Art
The present invention relates to a kind of primary lead interface for Tesla type pulse transformer, the big current feed-in of Tesla type pulse transformer primary can be realized and there is good heat radiation and sealing property, belonging to technical field of high voltage.
Background technology
The integral structure that Tesla type pulse transformer and coaxial pulse form line has that energy efficiency is high, simple and reliable, compact conformation, be suitable for the advantages such as repetitive operation, is widely applied in technical field of high voltage.As a kind of conventional high power pulsed source, the primary lead interface of Tesla type pulse transformer is the electric of the outside elementary electric capacity of inside transformer primary coil and transformer and is mechanically connected port, require that it has less contact resistance and introduces inductance, to ensure that transformer has higher coupling efficiency.The primary coil of usual Tesla type pulse transformer is single turn metal sheet band, is arranged on coaxial pulse and is formed on the inwall of line urceolus.Secondary coil is single layer, multi-turn tape winding, and its low-pressure end is connected to form line urceolus, and high-pressure side is connected to form line inner core.Whole inside transformer is filled with several atmospheric transformer oil to improve built-in electrical insulation, and therefore Tesla type pulse transformer easily can realize high power.The elementary electric capacity operating voltage of Tesla type pulse transformer is generally at a few hectovolt, and primary current peak can reach ten kA magnitudes.The elementary lead-out mode by binding post and bushing of traditional transformer, the effective flow area of electrode is little, contact resistance, introduces inductance and causes greatly heat waste large, causes the coupling efficiency of transformer low.Easily generate heat and cause transformer damage during transformer long-play simultaneously, therefore the requirement of Tesla type pulse transformer primary big current feed-in cannot be met.
Summary of the invention
For solving the problem of Telsa type pulse transformer primary big current feed-in, the present invention proposes a kind of primary lead interface of Tesla type pulse transformer.
Technical scheme of the present invention is: a kind of primary lead interface for Tesla type pulse transformer, mainly comprises single turn metal foil belt primary coil 1, cylindrical shell insulating part 2, pulse forming line urceolus 3, top electrode 4, upper metal platen 5, upper insulating part 6, metal leading-out piece 7, insulation spacer 8, lower insulating part 9, lower metal platen 10, bottom electrode 11, securing member insulating case 12; The metal sheet band of described primary coil 1 is middle part annular, the parallel extraction in two ends, and its annular section is placed in the inwall of the loop pulse formation line urceolus 3 of axial pass trough, forms electric insulation between the two by the cylindrical shell insulating part 2 of annular;
Described metal leading-out piece 7 and pulse forming line urceolus 3 are welded as a whole structure, and both materials are identical, and metal leading-out piece 7 is one with the cuboid of cylindrical hole; Itself and the groove vertical plane of cylindrical hole axis having an accommodation primary coil 1 with the parallel exit in cylindrical shell insulating part 2 two ends; And form electric insulation by insulation spacer 8 between the parallel exit in primary coil 1 two ends; Top electrode 4, upper metal platen 5, upper insulating part 6 are step ring bodies, and the cylindrical hole upper inside wall of described upper insulating part 6 small end outer wall and metal leading-out piece 7 matches, and upper insulating part 6 only leans on the upper end end face of metal leading-out piece 7; Described upper metal platen 5 small end outer wall and upper insulating part 6 small end inwall match, and upper metal platen 5 step outer wall and upper insulating part 6 hold end face only to lean on greatly; Described top electrode 4 small end outer wall and upper metal platen 5 small end inwall match; All radial seal is realized by sealing ring between top electrode 4 and upper metal platen 5, between upper metal platen 5 and upper insulating part 6; Other one group of identical lower insulating part 9, lower metal platen 10 and bottom electrode 11, form the symmetrical structure about insulation spacer 8 with top electrode 4, upper metal platen 5 and upper insulating part 6, be placed in the bottom of insulation spacer; Upper and lower two parts are connected by securing member and securing member insulating case 12.
As a kind of preferred version, thermal conductivity λ>=386.4W/ (mK), electricalresistivityρ≤1.8 × 10 under primary coil 1 Material selec-tion room temperature
-8the metal of Ω m, thermal conductivity λ>=108.9W (mK), electricalresistivityρ≤7.1 × 10 under top electrode 4, upper metal platen 5, lower metal platen 10, bottom electrode 11 Material selec-tion room temperature
-8the metal of Ω m;
As a kind of preferred version, upper insulating part 6, insulation spacer 8, lower insulating part 9, securing member insulating case 12 material Insulation Resistance Tester are tested its withstand voltage and are not less than 2500V;
As a kind of preferred version cylindrical shell insulating part 2 material selection, there is flexible solid insulation film, test its withstand voltage with Insulation Resistance Tester and be not less than 2500V.
The invention has the beneficial effects as follows: electrical connection place of Tesla type pulse transformer primary adopts metal crimp mode, increase the effective contact area of electrical connection place, reduce contact resistance and introduce inductance, achieve Tesla primary 2,000, the feed-in of 000 10kA/10 μ s magnitude pulse current, takes into account cooling requirements simultaneously; Sealing place adopts sealing ring radial seal structure, achieves the sealing of-40 DEG C to+50 DEG C temperature ranges, inside transformer 0.1 ~ 0.5Mpa oil pressure.
The primary lead interface for Tesla type pulse transformer that the present invention proposes, there is good mechanical erection performance and electric property, take into account heat radiation and sealing property simultaneously, solve the problems such as Tesla type pulse transformer primary big current feed-in, be applicable to the transformer device structure that other need elementary big current feed-in.
Accompanying drawing explanation
Fig. 1 is the primary lead interface schematic diagram for Tesla type pulse transformer that the present invention proposes;
Fig. 2 is primary coil schematic diagram
Fig. 3 is cylindrical shell insulating part schematic diagram
Fig. 4 is top electrode schematic diagram
Fig. 5 is upper metal platen schematic diagram
Fig. 6 is upper insulating part schematic diagram
Fig. 7 is metal leading-out piece schematic diagram
Fig. 8 is securing member insulating case schematic diagram
In figure: insulating part under 1-primary coil, 2-cylindrical shell insulating part, 3-pulse forming line urceolus, 4-top electrode, the upper metal platen of 5-, the upper insulating part of 6-, 7-metal leading-out piece, 8-insulation spacer, 9-; Metal platen, 11-bottom electrode, 12-securing member insulating case under 10-.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Consult Fig. 1-Fig. 8, the primary lead interface for Tesla type pulse transformer in the present embodiment, mainly comprises single turn metal foil belt primary coil 1, cylindrical shell insulating part 2, pulse forming line urceolus 3, top electrode 4, upper metal platen 5, upper insulating part 6, metal leading-out piece 7, insulation spacer 8, lower insulating part 9, lower metal platen 10, bottom electrode 11 and securing member insulating case 12; The metal sheet band of described primary coil 1 is middle part annular, the parallel extraction in two ends, and its annular section is placed in the inwall of the annular pulse formation line urceolus 3 of band axial pass trough, forms electric insulation between the two by cylindrical shell insulating part 2;
Described metal leading-out piece 7 and pulse forming line urceolus 3 are welded as a whole structure, and both materials are identical, and metal leading-out piece 7 is one with the cuboid of cylindrical hole; Itself and the groove vertical plane of cylindrical hole axis having an accommodation primary coil 1 with the parallel exit in cylindrical shell insulating part 2 two ends; Electric insulation is formed by insulation spacer 8 between the parallel exit in primary coil 1 two ends; Top electrode 4, upper metal platen 5, upper insulating part 6 are step ring bodies, and the cylindrical hole upper inside wall of described upper insulating part 6 small end outer wall and metal leading-out piece 7 matches, and the upper end end face of upper insulating part 6 step outer wall and metal leading-out piece 7 only leans on; Described upper metal platen 5 small end outer wall and upper insulating part 6 small end inwall match, and upper metal platen 5 step outer wall and upper insulating part 6 hold end face only to lean on greatly; Described top electrode 4 small end outer wall and upper metal platen 5 small end inwall match; Between top electrode 4 and upper metal platen 5, between upper metal platen 5 and upper insulating part 6, all realize radial seal by sealing ring; Other a group of identical lower insulating part 9, lower metal platen 10 and bottom electrode 11 and top electrode 4, upper metal platen 5 and upper insulating part 6 form the symmetrical structure about insulation spacer 8, are placed in the bottom of insulation spacer 8.Upper and lower two parts are connected by 4 high strength bolts, and are insulated by securing member insulating case 12 between described bolt and each fastener.
Primary coil 1 material is red copper, and top electrode 4, upper metal platen 5, lower metal platen 10, bottom electrode 11 material are brass.
Upper insulating part 6, lower insulating part 9 material are polyethylene, and insulation spacer 8 material is polytetrafluoroethylene, and securing member insulating case 12 material is nylon.
Cylindrical shell insulating part 2 material is NHN6650.
During installation, first fixed position metal leading-out piece 7 being soldered to pulse forming line urceolus 3 forms entirety, then with specific purpose tool, primary coil 1 is mounted on the inwall of pulse forming line urceolus 3, the exit of primary coil is drawn from metal leading-out piece 7 interior channel.With insulation spacer 8 fixed insulation between primary coil exit, insulate with cylindrical shell insulating part 2 between primary coil 1 and pulse forming line urceolus 3.Then insulating case 6, upper metal platen 5 and top electrode 4 and lower insulating case 9 is installed, lower metal platen 10, bottom electrode 11.Finally upper and lower two parts are connected by 4 high strength bolts, are insulated by securing member insulating case 12 between described bolt and each fastener.
Claims (4)
1. for a primary lead interface for Tesla type pulse transformer, it is characterized in that: mainly comprise single turn metal foil belt primary coil (1), cylindrical shell insulating part (2), pulse forming line urceolus (3), top electrode (4), upper metal platen (5), upper insulating part (6), metal leading-out piece (7), insulation spacer (8), lower insulating part (9), lower metal platen (10), bottom electrode (11), securing member insulating case (12); The metal sheet band of described primary coil (1) is middle part annular, the parallel extraction in two ends, its annular section is placed in the inwall of loop pulse formation line urceolus (3) of axial pass trough, forms electric insulation between the two by the cylindrical shell insulating part (2) of annular;
Described metal leading-out piece (7) and pulse forming line urceolus (3) are welded as a whole structure, and both materials are identical, and metal leading-out piece (7) is one with the cuboid of cylindrical hole; Metal leading-out piece (7) and the groove vertical plane of cylindrical hole axis having an accommodation primary coil (1) with the parallel exit in cylindrical shell insulating part (2) two ends; And form electric insulation by insulation spacer (8) between the parallel exit in primary coil (1) two ends; Top electrode (4), upper metal platen (5), upper insulating part (6) are step ring bodies, the cylindrical hole upper inside wall of described upper insulating part (6) small end outer wall and metal leading-out piece (7) matches, and upper insulating part (6) only leans on the upper end end face of metal leading-out piece (7); Described upper metal platen (5) small end outer wall and upper insulating part (6) small end inwall match, and upper metal platen (5) step outer wall and upper insulating part (6) hold end face only to lean on greatly; Described top electrode (4) small end outer wall and upper metal platen (5) small end inwall match; All radial seal is realized by sealing ring between top electrode (4) and upper metal platen (5), between upper metal platen (5) and upper insulating part (6); Other one group of identical lower insulating part (9), lower metal platen (10) and bottom electrode (11), form the symmetrical structure about insulation spacer (8) with top electrode (4), upper metal platen (5) and upper insulating part (6), be placed in the bottom of insulation spacer; Upper and lower two parts are connected by securing member and securing member insulating case (12).
2., as claimed in claim 1 for a primary lead interface for Tesla type pulse transformer, it is characterized in that: thermal conductivity λ>=386.4W/ (mK), electricalresistivityρ≤1.8 × 10 under described primary coil (1) Material selec-tion room temperature
-8the metal of Ω m, thermal conductivity λ>=108.9W/ (mK), electricalresistivityρ≤7.1 × 10 under top electrode (4), upper metal platen (5), lower metal platen (10), bottom electrode (11) Material selec-tion room temperature
-8the metal of Ω m.
3. as claimed in claim 1 for a primary lead interface for Tesla type pulse transformer, it is characterized in that: upper insulating part (6), insulation spacer (8), lower insulating part (9), securing member insulating case (12) material Insulation Resistance Tester are tested its withstand voltage and be not less than 2500V.
4. the primary lead interface for Tesla type pulse transformer as claimed in claim 1, it is characterized in that: cylindrical shell insulating part (2) material selection has flexible solid insulation film, tests its withstand voltage be not less than 2500V with Insulation Resistance Tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288547.7A CN102930960B (en) | 2012-08-15 | 2012-08-15 | For the primary lead interface of Tesla type pulse transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210288547.7A CN102930960B (en) | 2012-08-15 | 2012-08-15 | For the primary lead interface of Tesla type pulse transformer |
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| CN102930960A CN102930960A (en) | 2013-02-13 |
| CN102930960B true CN102930960B (en) | 2015-08-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107888169B (en) * | 2017-12-17 | 2023-10-24 | 华中科技大学 | Pulse current booster, pulse current generating device and preparation method thereof |
| CN114814364A (en) * | 2022-05-20 | 2022-07-29 | 西北核技术研究所 | Measuring device for secondary coil resistance of conical high-voltage pulse transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750432Y (en) * | 2004-08-03 | 2006-01-04 | 特变电工沈阳变压器集团有限公司 | Insulation structure of transformer lead |
| CN101697026A (en) * | 2009-10-26 | 2010-04-21 | 西北核技术研究所 | Isolated optical fiber seal switching device and machining method thereof |
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2012
- 2012-08-15 CN CN201210288547.7A patent/CN102930960B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750432Y (en) * | 2004-08-03 | 2006-01-04 | 特变电工沈阳变压器集团有限公司 | Insulation structure of transformer lead |
| CN101697026A (en) * | 2009-10-26 | 2010-04-21 | 西北核技术研究所 | Isolated optical fiber seal switching device and machining method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 大型Tesla变压器精密装配方法研究;苏友斌等;《第八届全国激光科学技术青年学术交流会论文集》;20061130;第536-539页 * |
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