CN102682986B - Production process of high voltage transformer - Google Patents
Production process of high voltage transformer Download PDFInfo
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- CN102682986B CN102682986B CN2012101731397A CN201210173139A CN102682986B CN 102682986 B CN102682986 B CN 102682986B CN 2012101731397 A CN2012101731397 A CN 2012101731397A CN 201210173139 A CN201210173139 A CN 201210173139A CN 102682986 B CN102682986 B CN 102682986B
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Abstract
The invention researches and develops a production process of a high voltage transformer, which includes the following steps of: (1) coiling primary windings, wherein the primary windings comprise a first primary winding and a second primary winding; (2) coiling secondary windings, wherein the secondary windings comprise a first secondary winding and a second secondary winding; and (3) pouring epoxy resin to the transformer: putting the coiled windings of the transformer into a mould, vacuumizing, pouring epoxy resin into the mould, drying and baking. The primary windings and the secondary windings of the transformer are separated from each other through copper foils, so the high voltage transformer has the advantages that the transformer can resist electromagnetic interference and the output waveform of the transformer is stable. The epoxy resin is poured under the vacuumizd condition, so the insulation performance of the transformer is improved.
Description
Technical field
The present invention relates to a kind of production technology of high-tension transformer.
Background technology
High-tension transformer is the core component of high pressure generator, has two large problems to become the key of high voltage source transformer: the one, and the leakage inductance of transformer, the 2nd, the insulation of transformer.The leakage inductance of transformer is subjected to very big influence because the requirement of insulation is difficult to reduce so cause the power of high pressure generator to be exported; Insulation distance increases certainly will cause the leakage inductance increase, and the leakage inductance increase not only can produce due to voltage spikes and electromagnetic interference, causes electromagnetic interference and inverter to damage, and also can influence the output of power.These two problems become influences the particularly principal element of high-power high voltage generator of high pressure generator.
Summary of the invention
The present invention is directed to the problems referred to above, researched and developed a kind of production technology of high-tension transformer, purpose is: adopt Copper Foil shielding quarantine measures, reduce leakage inductance as far as possible and solve the problem of electromagnetic interference; The vacuum pouring resin improves transformer insulated performance greatly.
Technical solution of the present invention: a kind of high-tension transformer, comprise insulating resin, two groups of magnetic cores, two groups of windings and Copper Foil, the primary coil of every group of winding and secondary coil are corresponding one by one, respectively around two above the magnetic core, Copper Foil is in respectively to be organized between primary coil and the secondary coil, and its production technology is:
1, former limit winding technique
1. first former limit winding:
Left fixed head, skeleton and short fixed cover are installed on the coil winding machine successively, fastening nut, fixing; Intercept eight isometric enamelled wires, take out earlier four smooth out with the fingers suitable, smooth out with the fingers straight, then therein one twist into one, to twist in the good groove that is placed on right fixed head and be fixed in the groove, tensioning, begin coiling from right to left clockwise, wind the back and fix with adhesive tape, unnecessary part is broken off with the fingers and thumb in the groove of left fixed disk after fixing coil.
2. second former limit winding:
Right fixed head, skeleton and long fixed cover are installed on the coil winding machine successively, fastening nut, fixing; Intercept eight isometric enamelled wires, take out earlier four smooth out with the fingers suitable, smooth out with the fingers straight, then therein one twist into one, to twist in the good groove that is placed on fixed head and be fixed in the groove, tensioning, begin coiling from left to right clockwise, wind the back and fix with adhesive tape, unnecessary part is broken off with the fingers and thumb in the groove of right fixed disk after fixing coil.
3. heat tin melting furnace, two ends, the former limit of transformer pin is immersed in the tin.
2, secondary winding technique
1. first secondary winding:
First transformer framework that winds former limit is put on the coil winding machine, and right plate is installed on the skeleton right side, and left plate is installed in the left side, and the notch alignment of left and right sides plate is also fastening; After fixing preprepared Copper Foil is close to and is rolled on the plate of the left and right sides, in junction, Copper Foil two, pad last layer insulating paper prevents the contact of Copper Foil two; With adhesive tape Copper Foil and insulating paper are fixed at last;
The tinned wird of length a 110～130mm of intercepting, be placed in the notch of left and right sides fixed disk, tinned wird and Copper Foil are welded together apart from edge 3～7mm place at the Copper Foil two ends, weld spacing is from skeleton edge 1～3mm, and the tinned wird that the right is unnecessary flushes with skeleton and cuts; Hole from the left plate is the enamelled wire tining, is welded on the Copper Foil below the hole, and insulating paper strip is placed on below the enamelled wire near the left side edge place, fixes with adhesive tape then, and coiling two circles cut off unnecessary paper tape; Paper is fixed around a circle on Copper Foil.
Begin around ground floor, coil is evenly distributed on the skeleton, and coil isolated edge 1～3mm fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn unanimity;
Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
When the opposite side winding, left and right fixed disk translation is together taken off 180 ° of upsets, be put into again on the coil winding machine and fix, use nut screwing clamping; Putting with this is starting point, begins around ground floor, and coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same; Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
2. second secondary winding:
The face that diameter is big on the left and right fixed disk is all turned to the inboard, second transformer framework that winds former limit is put on the coil winding machine, right plate is installed on the skeleton right side, and left plate is installed in the left side, and the notch alignment of left and right sides plate is fastening; After fixing preprepared Copper Foil is close to and is rolled on the plate of the left and right sides, in junction, Copper Foil two, pad last layer insulating paper prevents the contact of Copper Foil two; With adhesive tape Copper Foil and insulating paper are fixed at last.
Intercept a tinned wird length 110～130mm, be placed in the notch of left and right fixed disk, tinned wird and Copper Foil are welded together apart from edge 3～7mm place at the Copper Foil two ends, the tinned wird that the right is unnecessary flushes with skeleton and cuts; Hole from the left plate is the enamelled wire tining, is welded on the Copper Foil below the hole, and weld spacing is from skeleton limit 1～3mm, and insulating paper strip is placed on below the enamelled wire near the left side edge place, fixes with adhesive tape then, and coiling two circles cut off unnecessary paper tape; Paper is fixed around a circle on Copper Foil.
Begin around ground floor, coil is evenly distributed on the skeleton, and coil isolated edge 1～3mm fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same;
Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
When the opposite side winding, left and right fixed disk translation is together taken off 180 ° of upsets, be put into again on the coil winding machine, fixing, use nut screwing clamping; Putting with this is starting point, begins around ground floor, and coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same; Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
3, transformer poured with epoxy resin
The one group of Transformer Winding that winds is inserted in the mould, vacuumized the injection ring epoxy resins, dry oven dry.
Described fixed disk is aluminium sheet, and outside diameter is 56mm, and diameter of bore is 12mm, and thickness of slab is 2.5mm.
The long 52mm of described long positioning sleeve, outside diameter 16mm, diameter of bore 12mm.
The long 24mm of described short positioning sleeve, outside diameter 16mm, diameter of bore 12mm.
In the described step 1 coiling process, keep enamelled wire compactness, evenly not crooked, coil leaves fixed head edge, the left and right sides 1～3mm.
Beneficial effect of the present invention:
Isolate with Copper Foil between the utility model former limit winding and the secondary winding, have anti-electromagnetic interference, advantage that output waveform is stable; The vacuum pouring resin improves transformer insulated performance.
Embodiment
Specify the present invention below in conjunction with embodiment.
A kind of high-tension transformer, comprise insulating resin, two groups of magnetic cores, two groups of windings and Copper Foil, the primary coil of every group of winding and secondary coil are corresponding one by one, respectively around two groups above the magnetic core, Copper Foil is in respectively to be organized between primary coil and the secondary coil, and its production technology is:
1, former limit winding technique
1. first former limit winding:
Left fixed head, skeleton and short fixed cover are installed on the coil winding machine successively, fastening nut, fixing; Intercept eight isometric enamelled wires, take out earlier four smooth out with the fingers suitable, smooth out with the fingers straight, then therein one twist into one, to twist in the good groove that is placed on right fixed head and be fixed in the groove, tensioning begins coiling from right to left clockwise, keep enamelled wire compactness, evenly not crooked, coil leaves fixed head edge, the left and right sides 1～3mm, winds the back and fixes with adhesive tape, unnecessary part is broken off with the fingers and thumb in the groove of left fixed disk after fixing coil.
2. second former limit winding:
Right fixed head, skeleton and long fixed cover are installed on the coil winding machine successively, fastening nut, fixing; Intercept eight isometric enamelled wires, take out earlier four smooth out with the fingers suitable, smooth out with the fingers straight, then therein one twist into one, to twist in the good groove that is placed on fixed head and be fixed in the groove, tensioning begins coiling from left to right clockwise, keep enamelled wire compactness, evenly not crooked, coil leaves fixed head edge, the left and right sides 1～3mm, winds the back and fixes with adhesive tape, unnecessary part is broken off with the fingers and thumb in the groove of right fixed disk after fixing coil.
3. heat tin melting furnace, two ends, the former limit of transformer pin is immersed in the tin.
2, secondary winding technique
1. first secondary winding:
First transformer framework that winds former limit is put on the coil winding machine, and right plate is installed on the skeleton right side, and left plate is installed in the left side, and the notch alignment of left and right sides plate is also fastening; After fixing preprepared Copper Foil is close to and is rolled on the plate of the left and right sides, in junction, Copper Foil two, pad last layer insulating paper prevents the contact of Copper Foil two; With adhesive tape Copper Foil and insulating paper are fixed at last;
The tinned wird of length a 110～130mm of intercepting is placed in the notch of left and right sides fixed disk, tinned wird and Copper Foil is welded together apart from edge 3～7mm place at the Copper Foil two ends, and the tinned wird that the right is unnecessary flushes with skeleton and cuts; Hole from the left plate is the enamelled wire tining, is welded on the Copper Foil below the hole, and weld spacing is from skeleton edge 1～3mm, and insulating paper strip is placed on below the enamelled wire near the left side edge place, fixes with adhesive tape then, and coiling two circles cut off unnecessary paper tape; Paper is fixed around a circle on Copper Foil.
Begin around ground floor, coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then insulating paper strip is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn unanimity.
Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
When the opposite side winding, left and right fixed disk translation is together taken off 180 ° of upsets, be put into again on the coil winding machine and fix, use nut screwing clamping; Putting with this is starting point, begins around ground floor, and coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then insulating paper strip is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same; Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
2. second secondary winding:
The face that diameter is big on the left and right fixed disk is all turned to the inboard, second transformer framework that winds former limit is put on the coil winding machine, right plate is installed on the skeleton right side, and left plate is installed in the left side, and the notch alignment of left and right sides plate is fastening; After fixing preprepared Copper Foil is close to and is rolled on the plate of the left and right sides, in junction, Copper Foil two, pad last layer insulating paper prevents the contact of Copper Foil two; With adhesive tape Copper Foil and insulating paper are fixed at last.
Intercept a tinned wird length 110～130mm, be placed in the notch of left and right fixed disk, tinned wird and Copper Foil are welded together apart from edge 3～7mm place at the Copper Foil two ends, the tinned wird that the right is unnecessary flushes with skeleton and cuts; Hole from the left plate is the enamelled wire tining, is welded on the Copper Foil below the hole, and weld spacing is from skeleton edge 1～3mm, and insulating paper strip is placed on below the enamelled wire near the left side edge place, fixes with adhesive tape then, and coiling two circles cut off unnecessary paper tape; Paper is fixed around a circle on Copper Foil.
Begin around ground floor, coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same.
Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
When the opposite side winding, left and right fixed disk translation is together taken off 180 ° of upsets, be put into again on the coil winding machine, fixing, use nut screwing clamping; Putting with this is starting point, begins around ground floor, and coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same; Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm.
3, transformer poured with epoxy resin
The one group of Transformer Winding that winds is inserted in the mould, vacuumized the injection ring epoxy resins, dry oven dry.
Claims (5)
1. the production technology of a high-tension transformer, this high-tension transformer comprises insulating resin, two groups of magnetic cores, two groups of windings and Copper Foil, the primary coil of every group of winding and secondary coil are corresponding one by one, respectively around two above the magnetic core, Copper Foil is in respectively to be organized between primary coil and the secondary coil, and its production technology is:
(1) former limit winding technique
1. first former limit winding:
Left fixed head, skeleton and short fixed cover are installed on the coil winding machine successively, fastening nut, fixing; Intercept eight isometric enamelled wires, take out earlier four smooth out with the fingers suitable, smooth out with the fingers straight, then therein one twist into one, to twist in the good groove that is placed on right fixed head and be fixed in the groove, tensioning, begin coiling from right to left clockwise, wind the back and fix with adhesive tape, unnecessary part is broken off with the fingers and thumb in the groove of left fixed disk after fixing coil;
2. second former limit winding:
Right fixed head, skeleton and long fixed cover are installed on the coil winding machine successively, fastening nut, fixing; Intercept eight isometric enamelled wires, take out earlier four smooth out with the fingers suitable, smooth out with the fingers straight, then therein one twist into one, to twist in the good groove that is placed on right fixed head and be fixed in the groove, tensioning, begin coiling from left to right clockwise, wind the back and fix with adhesive tape, unnecessary part is broken off with the fingers and thumb in the groove of right fixed disk after fixing coil;
3. heat tin melting furnace, two ends, the former limit of transformer pin is immersed in the tin;
(2) secondary winding technique
1. first secondary winding:
First transformer framework that winds former limit is put on the coil winding machine, and right plate is installed on the skeleton right side, and left plate is installed in the left side, and the notch alignment of left and right sides plate is also fastening; After fixing preprepared Copper Foil is close to and is rolled on the plate of the left and right sides, in junction, Copper Foil two, pad last layer insulating paper prevents the contact of Copper Foil two; With adhesive tape Copper Foil and insulating paper are fixed at last;
The tinned wird of length a 110～130mm of intercepting, be placed in the notch of left and right sides fixed disk, tinned wird and Copper Foil are welded together apart from edge 3～7mm place at the Copper Foil two ends, weld spacing is from skeleton edge 1～3mm, and the tinned wird that the right is unnecessary flushes with skeleton and cuts; Hole from the left plate is the enamelled wire tining, is welded on the Copper Foil below the hole, and insulating paper strip is placed on below the enamelled wire near the left side edge place, fixes with adhesive tape then, and coiling two circles cut off unnecessary paper tape; Paper is fixed around a circle on Copper Foil;
Begin around ground floor, coil is evenly distributed on the skeleton, and coil isolated edge 1～3mm fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn unanimity;
Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm;
When the opposite side winding, left and right fixed disk translation is together taken off 180 ° of upsets, be put into again on the coil winding machine and fix, use nut screwing clamping; Putting with this is starting point, begins around ground floor, and coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same; Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm;
2. second secondary winding:
The face that diameter is big on the left and right fixed disk is all turned to the inboard, second transformer framework that winds former limit is put on the coil winding machine, right plate is installed on the skeleton right side, and left plate is installed in the left side, and the notch alignment of left and right sides plate is fastening; After fixing preprepared Copper Foil is close to and is rolled on the plate of the left and right sides, in junction, Copper Foil two, pad last layer insulating paper prevents the contact of Copper Foil two; With adhesive tape Copper Foil and insulating paper are fixed at last;
Intercept a tinned wird length 110～130mm, be placed in the notch of left and right fixed disk, tinned wird and Copper Foil are welded together apart from edge 3～7mm place at the Copper Foil two ends, the tinned wird that the right is unnecessary flushes with skeleton and cuts; Hole from the left plate is the enamelled wire tining, is welded on the Copper Foil below the hole, and weld spacing is from skeleton limit 1～3mm, and insulating paper strip is placed on below the enamelled wire near the left side edge place, fixes with adhesive tape then, and coiling two circles cut off unnecessary paper tape; Paper is fixed around a circle on Copper Foil;
Begin around ground floor, coil is evenly distributed on the skeleton, and coil isolated edge 1～3mm fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same;
Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm;
When the opposite side winding, left and right fixed disk translation is together taken off 180 ° of upsets, be put into again on the coil winding machine, fixing, use nut screwing clamping; Putting with this is starting point, begins around ground floor, and coil is evenly distributed on the skeleton, fixes last lap earlier with adhesive tape, then paper tape is fixed on enamelled wire bottom, enamelled wire with the paper tape band and walks the place that the wraparound of " it " font begins, and fixes paper tape; Begin again around the second layer; Equally, around the 3rd layer, the 4th layer .... be total to Floor 12, every layer of number of turn is the same; Intercepting silicon rubber high-voltage output line is peeled an end 5mm off and is plated tin, and the aperture on notch right side passes from the left fixed disk, with Transformer Winding tail end firm welding, and is welded into slick and sly state; Get insulating paper strip, fix with the High-Voltage Insulation adhesive tape, around three layers, that last one deck is firm;
(3) transformer poured with epoxy resin
The one group of Transformer Winding that winds is inserted in the mould, vacuumized the injection ring epoxy resins, dry oven dry.
2. the production technology of high-tension transformer as claimed in claim 1, it is characterized in that: described fixed disk is aluminium sheet, and outside diameter is 56mm, and diameter of bore is 12mm, and thickness of slab is 2.5mm.
3. the production technology of high-tension transformer as claimed in claim 1 is characterized in that: the long 52mm of described long fixed cover, outside diameter 16mm, diameter of bore 12mm.
4. the production technology of high-tension transformer as claimed in claim 1 is characterized in that: the long 24mm of described short fixed cover, outside diameter 16mm, diameter of bore 12mm.
5. the production technology of high-tension transformer as claimed in claim 1 is characterized in that: in described step (1) the coiling process, keep enamelled wire compactness, evenly not crooked, coil leaves fixed head edge, the left and right sides 1～3mm.
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| CN103325559B (en) * | 2012-10-25 | 2015-10-21 | 中国船舶重工集团公司第七二三研究所 | For the transformer manufacture method of floating filament modulation device in Microwave Power Module |
| CN105304315A (en) * | 2015-11-20 | 2016-02-03 | 山东英博电力设备有限公司 | Settling type winding method |
| CN106158356A (en) * | 2016-09-29 | 2016-11-23 | 无锡金诺电气有限公司 | Transformator tin-soldering method |
| CN109243798A (en) * | 2018-10-16 | 2019-01-18 | 太和县金丰硕电子有限公司 | A kind of method of magnetic core of transformer coil outsourcing copper foil |
| CN112103080B (en) * | 2020-08-31 | 2022-04-12 | 大连北方互感器集团有限公司 | Method for fixing interlayer insulating paper of primary winding of voltage transformer |
| CN112582172B (en) * | 2020-12-17 | 2022-09-27 | 安徽沃华电力设备有限公司 | Composite insulating cylinder, current limiter and processing technology of composite insulating cylinder |
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| CN2634612Y (en) * | 2003-08-07 | 2004-08-18 | 康舒科技股份有限公司 | Transformer structure |
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| CN1059231A (en) * | 1990-03-30 | 1992-03-04 | 多源科技公司 | The small section flat-plate transformer that is used for off-line switching power supply |
| CN2372769Y (en) * | 1999-01-06 | 2000-04-05 | 康舒科技股份有限公司 | Transformer with radiating fin |
| US7091817B2 (en) * | 2001-09-28 | 2006-08-15 | Delta Energy Systems (Switzerland) Ag | Planar transformer comprising plug-in secondary windings |
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| CN2634612Y (en) * | 2003-08-07 | 2004-08-18 | 康舒科技股份有限公司 | Transformer structure |
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