CN105632712B - A kind of high-frequency and high-voltage high-power rectifier transformer - Google Patents

A kind of high-frequency and high-voltage high-power rectifier transformer Download PDF

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Publication number
CN105632712B
CN105632712B CN201511033771.1A CN201511033771A CN105632712B CN 105632712 B CN105632712 B CN 105632712B CN 201511033771 A CN201511033771 A CN 201511033771A CN 105632712 B CN105632712 B CN 105632712B
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primary
skeleton
framework
bakelite
transformer
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CN105632712A (en
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付兴
于美东
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HEFEI LEIKE ELECTRONIC TECHNOLOGY Co Ltd
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HEFEI LEIKE ELECTRONIC TECHNOLOGY Co Ltd
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2895Windings disposed upon ring cores
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01F27/303Clamping coils, windings or parts thereof together
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/42Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils

Abstract

The present invention relates to a kind of high-frequency and high-voltage high-power rectifier transformer, including ultracrystallite shaped core, primary skeleton is arranged on two magnetic core arm, primary line bag is wound on primary skeleton, secondary framework is set in the outside of primary line bag, insulating barrier is set between secondary framework and primary line bag, secondary wire cladding winding is on secondary framework, the upper/lower terminal of primary skeleton and secondary framework is respectively provided with pressing plate, the upper/lower terminal of ultracrystallite shaped core sets fixed structure unit, and cowling panel is fixed on the outside of secondary wire bag by fixed structure unit.The present invention uses ultracrystallite shaped core, substantially reduces core volume, reduces cost and electromagnetic interference;In addition, the present invention is using modularization, multi-composite type mentality of designing, according to required transformer output voltage different brackets, the adjustment secondary wire bag number of turn, adjustment rectifier system, so as to realize high pressure, positive or negative High voltage output, multiple power combined high-power high-frequency and high-voltage rectifier transformer.

Description

A kind of high-frequency and high-voltage high-power rectifier transformer
Technical field
The present invention relates to transformer technology field, especially a kind of high-frequency and high-voltage high-power rectifier transformer.
Background technology
High-power high voltage power supply is commonly used in present generation power supplies equipment, its is widely used, in modulator, accelerator, laser, state The occasion such as anti-has very important application.Existing high-power high-frequency high-voltage power supply, inverting has a variety of classification, for not Same inverting, the requirement to high frequency transformer is also different.But, typically now think that Switch Power Transformer should be selected Soft magnetic ferrite is magnetic core to design high frequency high voltage transformer, is natural thing.Many relevant high frequency high voltage transformers Paper, monograph and teaching material, discussed just for soft magnetic ferrite, and, sometimes to other soft magnetic materials sometimes illustratively Say nothing.But this kind of transformer also has the shortcomings that itself, for example, working frequency is than relatively low, in below 50KHz, power ratio Larger high-frequency and high-voltage power supply selects this kind of transformer, because soft magnetic ferrite magnetic flux density is low, is needed during Design of Transformer Material is more, and core volume is bigger, and this can cause processing difficulties, frangible and yield rate low.Simultaneously because the mangneto of soft magnetic ferrite It is flexible big, this kind of high frequency high voltage transformer can be caused to produce electromagnetic interference.
In recent years, design research and development in find the soft magnetic characteristic that ultra-fine particle can also have been obtained because ought When the diameter of grain between ferromagnetic particle less than that can produce interactional length (about 30nm), whole magnetic field would not be with list The change in individual particle direction and change.Then ultracrystallite shaped core arises at the historic moment, and compares using soft magnetic ferrite as magnetic core For the high frequency high voltage transformer of design, ultracrystallite shaped core have low-down iron loss, very high saturation flux density, The advantages of minimum magnetostriction, all high frequency high voltage transformers using ultracrystallite as magnetic core have higher environment resistant interference energy Power, can also improve the stability and reliability of Switching Power Supply.
The content of the invention
Ultracrystallite shaped core is used it is an object of the invention to provide one kind, the design cycle is short, cost is low, combination side Just, the knockdown high-frequency and high-voltage high-power rectifier transformer of high pressure, positive or negative High voltage output, multiple power can be realized.
To achieve the above object, present invention employs following technical scheme:A kind of high-frequency and high-voltage high-power rectifier transformer, Including ultracrystallite shaped core, it is arranged on two magnetic core arm on primary skeleton, primary skeleton and winds primary line bag, secondary bone Frame is set in the outside of primary line bag, sets insulating barrier between secondary framework and primary line bag, secondary wire cladding winding is in secondary bone On frame, the upper/lower terminal of primary skeleton and secondary framework is respectively provided with pressing plate, and the upper/lower terminal of ultracrystallite shaped core sets solid Determine construction unit, cowling panel is fixed on the outside of secondary wire bag by fixed structure unit.
The strap of winding on the whole and Du Pont's paper of the ultracrystallite shaped core, the primary skeleton are located at strap and Du Pont The outside of paper.
The primary skeleton is made up of the first identical and positioned opposite primary skeleton of structure and the second primary skeleton, and first It is respectively provided with primary skeleton and the second primary skeleton for left and right spacing boss and groove, boss and groove are positioned opposite, the On one primary skeleton and the second primary skeleton on open up primary line bag crossed beam trunking, the length of the primary skeleton and ultracrystallite into The unilateral winding length of type magnetic core is consistent.
The secondary framework is made up of the first identical and positioned opposite secondary framework of structure and second subprime skeleton, and first The centre position of secondary framework and second subprime skeleton opens up the both sides of heat emission hole, the first secondary framework and second subprime skeleton It is respectively provided with the winding slot for winding secondary wire bag, the first secondary framework and second subprime skeleton and is respectively provided with positive stop lug boss, the Line outlet groove is opened up on one secondary framework and second subprime skeleton and spacing hole is fixed in outlet.
The fixed structure unit by fix steel lid, PCB fix bakelite, PCB support bakelite, draw copper bar spacing clamping plate, Bakelite briquetting, bakelite limited support block and transformer lower supporter composition, the cowling panel fix bakelite, PCB by PCB and support bakelite Be fixed on before secondary wire bag, the ultracrystallite shaped core, primary skeleton, primary line bag, secondary framework, secondary wire bag by The fixed support jointly of fixed steel lid, transformer lower supporter.
Safe distance d, the secondary bone are left between the both sides of the secondary framework and the both sides of ultracrystallite shaped core The length of frame is the unilateral winding length of ultracrystallite shaped core and twice of safe distance d difference, and wherein safe distance d is to become The electrical safety distance of depressor ceiling voltage output end and die cast ultracrystalline magnetic core;The total number of turns N2 of the secondary wire bag is Transformer exports ceiling voltage U2 divided by primary voltage U multiplied by with the number of turn N of primary line bag, i.e.,:
Welding rectifier circuit on the cowling panel, the rectification circuit is bridge rectifier.
The bakelite briquetting is located at the top of primary skeleton and secondary framework, and the bakelite limited support block is located at primary bone The lower section of frame and secondary framework, bakelite briquetting and bakelite limited support block are positioned opposite, and positive stop lug boss, institute are respectively provided with the two State bakelite briquetting, bakelite limited support block and pressing plate common by primary skeleton and secondary framework compression;The fixed steel lid is fixed On bakelite briquetting, the bakelite limited support block is installed on transformer lower supporter, and the cowling panel is installed in PCB and fixes electricity On wood, PCB fixes bakelite and is installed on PCB support bakelites, and PCB supports bakelite, the extraction spacing clamping plate of copper bar are installed in fixation In steel lid, open up and worn for nylon screw rod on the fixed steel lid, bakelite briquetting, bakelite limited support block and transformer lower supporter The nylon screw hole crossed.
The number of turn N of primary line bag calculation formula is:
Wherein, N is the number of turn of primary line bag, and U is transformer primary voltage, and f is transformer working frequency, and Bm is ultracrystallite The peak value of shaped core, Ae accumulates for the effective cross section of ultracrystallite shaped core.
As shown from the above technical solution, the present invention uses ultracrystallite shaped core, substantially reduces core volume, reduces Cost and electromagnetic interference;In addition, the present invention is using modularization, multi-composite type mentality of designing, according to required transformer output voltage Different brackets, the adjustment secondary wire bag number of turn, adjustment rectifier system, so as to realize high pressure, positive or negative High voltage output, multiple power group Box-like high-power high-frequency high-voltage rectifier transformer.
Brief description of the drawings
Fig. 1,2 are structural representation of the invention;
Fig. 3 is the structural representation of the first primary skeleton;
Fig. 4 is the mounting structure schematic diagram of primary skeleton, secondary framework and ultracrystallite shaped core;
Fig. 5,6 be secondary framework structural representation.
Embodiment
As shown in Figure 1, 2, a kind of high-frequency and high-voltage high-power rectifier transformer, including ultracrystallite shaped core 1, two magnetic It is arranged in core arms on primary skeleton 2, primary skeleton 2 and winds primary line bag, secondary framework 3 is set in the outside of primary line bag, Insulating barrier 14 is set between secondary framework 3 and primary line bag, secondary wire cladding winding is on secondary framework 3, primary skeleton 2 and secondary The upper/lower terminal of skeleton 3 is respectively provided with pressing plate 4, and the upper/lower terminal of ultracrystallite shaped core 1 sets fixed structure unit, cowling panel 5 are fixed on the outside of secondary wire bag by fixed structure unit.The strap of winding on the whole of the ultracrystallite shaped core 1 and Du Nation's paper, the primary skeleton 2 is located at the outside of strap and Du Pont's paper.Welding rectifier circuit on the cowling panel 5, the rectified current Road is bridge rectifier.
As shown in Figure 3,4, the primary skeleton 2 is as at the beginning of the first identical and positioned opposite primary skeleton 2a and second of structure It is respectively provided with level skeleton 2b composition, the primary skeletons of the first primary skeleton 2a and second 2b for left and right spacing boss 2c and recessed Groove 2d, boss 2c and groove 2d are positioned opposite, that is to say, that the first primary skeleton 2a primary skeleton 2b's of boss alignment second Groove arrangement, the first primary skeleton 2a primary skeleton 2b of groove alignment second boss arrangement, the first primary skeleton 2a and the On two primary skeleton 2b on open up primary line bag crossed beam trunking 2e, length and the ultracrystallite shaped core 1 of the primary skeleton 2 Unilateral winding length is consistent.
As shown in Figure 5,6, the secondary framework 3 is by the first identical and positioned opposite secondary framework 3a of structure and second Level skeleton 3b compositions, the first secondary framework 3a and second subprime skeleton 3b centre position open up heat emission hole 3c, first level Skeleton 3a and second subprime skeleton 3b both sides be respectively provided with for the winding slot 3d, the first secondary framework 3a that wind secondary wire bag and It is respectively provided with second subprime skeleton 3b on positive stop lug boss 3e, the first secondary framework 3a and second subprime skeleton 3b and opens up line outlet groove Spacing hole 3g is fixed in 3f and outlet.
As shown in Figure 1, 2, the fixed structure unit is fixed bakelite 7, PCB supports bakelite 8 by fixing steel lid 6, PCB, drawn Go out copper bar position limiting clamp plate 9, bakelite briquetting 10, bakelite limited support block 11 and transformer lower supporter 12 to constitute, the cowling panel 5 by PCB fixes bakelite 7, PCB support bakelites 8 and is fixed on before secondary wire bag, the ultracrystallite shaped core 1, primary skeleton 2, Steel lid 6, transformer lower supporter 12 are jointly fixed to be supported by fixing for primary line bag, secondary framework 3, secondary wire bag.The bakelite pressure Block 10 is located at the top of primary skeleton 2 and secondary framework 3, and the bakelite limited support block 11 is located at primary skeleton 2 and secondary bone The lower section of frame 3, bakelite briquetting 10 and bakelite limited support block 11 are positioned opposite, and positive stop lug boss, the electricity are respectively provided with the two Wooden briquetting 10, bakelite limited support block 11 and pressing plate 4 jointly compress primary skeleton 2 and secondary framework 3;The fixed steel lid 6 It is installed on bakelite briquetting 10, the bakelite limited support block 11 is installed on transformer lower supporter 12, and the cowling panel 5 is fixed Fixed in PCB on bakelite 7, PCB fixes bakelite 7 and is installed on PCB support bakelites 8, PCB supports bakelite 8, extraction copper bar position limiting clamp Plate 9 is installed in fixed steel lid 6, the fixed steel lid 6, bakelite briquetting 10, bakelite limited support block 11 and transformer bottom branch The nylon screw hole 13 passed through for nylon screw rod is opened up on frame 12.
As shown in Figure 1, 2, left between the both sides of the secondary framework 3 and the both sides of ultracrystallite shaped core 1 safety away from From d, the length of the secondary framework 3 is the unilateral winding length of ultracrystallite shaped core 1 and twice of safe distance d difference, Wherein safe distance d is the electrical safety distance of transformer ceiling voltage output end and die cast ultracrystalline magnetic core;Described time The total number of turns N2 of level line bag is transformer output ceiling voltage U2 divided by primary voltage U multiplied by with the number of turn N of primary line bag, i.e.,:
The number of turn N of primary line bag calculation formula is:
Wherein, N is the number of turn of primary line bag, and U is transformer primary voltage, and f is transformer working frequency, and Bm is ultracrystallite The peak value of shaped core 1, Ae accumulates for the effective cross section of ultracrystallite shaped core 1.
Below in conjunction with Fig. 1 to 6, the present invention is further illustrated.
The die cast ultracrystalline magnetic core of ultracrystallite shaped core 1 is VITROPERM 500F, and primary skeleton 2 is set in super On the magnetic core arm of the left and right sides of crystallite shaped core 1, two layers of Du Pont's paper is wrapped on its surface, from inside to outside the primary line of coiling Bag, copper strips is drawn from the left side rectangular channel of bakelite briquetting 10 after the completion of coiling, is fixed through drawing the spacing clamping plate 9 of copper bar;
Secondary framework 3 is set in the periphery of primary line bag, and leaves a certain distance, as insulating barrier with primary line bag 14, secondary wire wrapping in the winding slot 3d of secondary framework 3 on, after the completion of coiling via outlet fix spacing hole 3g lead-out wires Head, the upper and lower ends pressing plate 4 of secondary framework 3 is fixed, then in its upper and lower ends bakelite briquetting 10 and bakelite limited support block 11 fix, and do not allow it arbitrarily to move;
Place fixed steel lid 6, the spacing clamping plate 9 of copper bar drawn, in the spacing branch of bakelite in the last upper surface in bakelite briquetting 10 The lower surface of bracer 11 places transformer lower supporter 12 and carries out overall fixation through nylon screw hole 13 using 4 nylon screw rods, Screwed using nylon nut, cowling panel 5 is fixed on into PCB support bakelites 8 after finishing for assembling and PCB is fixed on bakelite 7.
Embodiment one
Ultracrystallite shaped core 1 uses VITROPERM 500F, and the sectional area Ae of ultracrystallite shaped core 1 is 6.0cm2, Unilateral winding length is 265mm, and the effective area of its window coiling is 437.25cm2, and primary skeleton 2 is using the processing of epoxy bucket Into the sheet copper of primary line bag is wound on primary skeleton 2, primary totally 2 line bags, respectively in two primary skeletons 2 of magnetic core Upper each line bag (Same Name of Ends being noted during coiling, facilitate two bags to connect nearby) around as two.Each line bag 0.5*200 (100mm2) 5 circle of sheet copper coiling, points 5 layers.During coiling, copper sheet section start welding 2*40*390 copper strips is drawn, layer insulation Layer is tightly wrapped with 8 layers of insulating paper and with cloth using 2 layers of 0.25mm insulating papers, outermost layer, and 2*40*390 copper is equally welded at ending Band is drawn;Weld Glabrous is pierced.(consolidated between two primary with 2*40*270 copper strips short circuit at short circuit with M10 screw It is fixed), finally constitute 1 primary.Insulating barrier is insulated using oil immersed type, while controlling two ends and the ultracrystallite of secondary wire bag unit group The distance of shaped core 1.
Secondary framework 3 is processed using epoxy bucket, and secondary framework 3 is set in primary line bag periphery, and with primary line bag Leave a certain distance, as insulating barrier 14.Then each coiling 10 is wrapped on two secondary frameworks 3 of magnetic core respectively.Each Starting for bag is determined with last head by skeleton size.Length is drawn near 200mm, and with primary outlet across magnetic core (or Say the other side in magnetic core).66 circles of each bag, diameter 1.2mm wire coilings;The 10 layers of coiling of each bag point, every layer of coiling 7 Circle, coiling width is near 11mm, highly within 18mm.And note, secondary layer insulation is designed according to minimum 600V.Often Two terminal consolidation process of section secondary wire bag unit group, fix spacing hole through outlet and draw, be easy to connect cowling panel.
Primary line bag connects AC power, and alternating flow electricity is flowed through in winding and produces magnetic induction electromotive force, then Just there are alternating flux, primary and secondary winding cutting magnetic line, in secondary with regard to the exchange of identical frequency can be sensed in closed magnetic core Electricity, the turn ratio of the primary and secondary winding of transformer is equal to voltage ratio, just may be used when having multiple secondary windings and tap in transformer To produce multiple output voltages, by can obtain required DC voltage after bridge rectifier, therefore, by increasing or decreasing Primary and secondary wire diameter, secondary wire winding number and change rectifier system, so as to realize that can float high pressure, positive or negative high voltage are defeated Go out, multiple power combined high-power high-frequency and high-voltage rectification.
In summary, the present invention is different according to required transformer output voltage using modularization, multi-composite type mentality of designing Grade, the adjustment secondary wire bag number of turn, adjustment rectifier system, so as to realize high pressure, positive or negative High voltage output, multiple power combined type High-power high-frequency high-voltage rectifier transformer.

Claims (8)

1. a kind of high-frequency and high-voltage high-power rectifier transformer, it is characterised in that:Including ultracrystallite shaped core (1), two magnetic It is arranged in core arms on primary skeleton (2), primary skeleton (2) and winds primary line bag, secondary framework (3) is set in primary line bag Outside, insulating barrier (14) is set between secondary framework (3) and primary line bag, and secondary wire cladding winding is primary on secondary framework (3) The upper/lower terminal of skeleton (2) and secondary framework (3) is respectively provided with pressing plate (4), and the upper/lower terminal of ultracrystallite shaped core (1) is set Fixed structure unit, cowling panel (5) is fixed on the outside of secondary wire bag by fixed structure unit;
The fixed structure unit supports bakelite (8), extraction copper bar spacing by fixing steel lid (6), PCB fixation bakelites (7), PCB Clamping plate (9), bakelite briquetting (10), bakelite limited support block (11) and transformer lower supporter (12) composition, the cowling panel (5) by PCB fixes bakelite (7), PCB support bakelites (8) and is fixed on before secondary wire bag, the ultracrystallite shaped core (1), primary Skeleton (2), primary line bag, secondary framework (3), secondary wire bag are by fixing steel lid (6), transformer lower supporter (12) fixed branch jointly Support;
The bakelite briquetting (10) is located at the top of primary skeleton (2) and secondary framework (3), the bakelite limited support block (11) Positioned at the lower section of primary skeleton (2) and secondary framework (3), bakelite briquetting (10) and bakelite limited support block (11) are positioned opposite, And positive stop lug boss is respectively provided with the two, the bakelite briquetting (10), bakelite limited support block (11) and pressing plate (4) are common by primary Skeleton (2) and secondary framework (3) are compressed;The fixed steel lid (6) is installed on bakelite briquetting (10), the bakelite limited support Block (11) is installed on transformer lower supporter (12), and the cowling panel (5) is installed in PCB and fixed on bakelite (7), and PCB fixes electricity Wooden (7) are installed on PCB support bakelites (8), and PCB support bakelites (8), the extraction spacing clamping plate of copper bar (9) are installed in fixed steel Cover on (6), on the fixed steel lid (6), bakelite briquetting (10), bakelite limited support block (11) and transformer lower supporter (12) Open up the nylon screw hole (13) passed through for nylon screw rod.
2. high-frequency and high-voltage high-power rectifier transformer according to claim 1, it is characterised in that:The ultracrystallite is molded magnetic The strap of winding on the whole and Du Pont's paper of core (1), the primary skeleton (2) are located at the outside of strap and Du Pont's paper.
3. high-frequency and high-voltage high-power rectifier transformer according to claim 1, it is characterised in that:The primary skeleton (2) It is made up of the first identical and positioned opposite primary skeleton (2a) of structure and the second primary skeleton (2b), the first primary skeleton (2a) It is respectively provided with the second primary skeleton (2b) for left and right spacing boss (2c) and groove (2d), boss (2c) and groove (2d) is positioned opposite, on the first primary skeleton (2a) and the second primary skeleton (2b) on open up primary line bag crossed beam trunking (2e), The length of the primary skeleton (2) is consistent with the unilateral winding length of ultracrystallite shaped core (1).
4. high-frequency and high-voltage high-power rectifier transformer according to claim 1, it is characterised in that:The secondary framework (3) It is made up of identical and positioned opposite the first secondary framework (3a) of structure and second subprime skeleton (3b), the first secondary framework (3a) Heat emission hole (3c), the first secondary framework (3a) and second subprime skeleton are opened up with the centre position of second subprime skeleton (3b) The both sides of (3b) are respectively provided with the winding slot (3d) for winding secondary wire bag, the first secondary framework (3a) and second subprime skeleton It is respectively provided with (3b) on positive stop lug boss (3e), the first secondary framework (3a) and second subprime skeleton (3b) and opens up line outlet groove (3f) Spacing hole (3g) is fixed with outlet.
5. high-frequency and high-voltage high-power rectifier transformer according to claim 1, it is characterised in that:The secondary framework (3) Both sides and ultracrystallite shaped core (1) both sides between leave safe distance d, the length of the secondary framework (3) is ultra micro The unilateral winding length of brilliant shaped core (1) and twice of safe distance d difference, wherein safe distance d are transformer highest electricity Press the electrical safety distance of output end and die cast ultracrystalline magnetic core;The total number of turns N2 of the secondary wire bag exports for transformer Ceiling voltage U2 divided by primary voltage U is multiplied by with the number of turn N of primary line bag, i.e.,:
<mrow> <mi>N</mi> <mn>2</mn> <mo>=</mo> <mfrac> <mrow> <mi>U</mi> <mn>2</mn> </mrow> <mi>U</mi> </mfrac> <mo>*</mo> <mi>N</mi> <mo>.</mo> </mrow>
6. high-frequency and high-voltage high-power rectifier transformer according to claim 1, it is characterised in that:On the cowling panel (5) Welding rectifier circuit, the rectification circuit is bridge rectifier.
7. a kind of high-frequency and high-voltage high-power rectifier transformer according to claim 5, it is characterised in that:The primary line bag Number of turn N calculation formula be:
<mrow> <mi>N</mi> <mo>=</mo> <mfrac> <mi>U</mi> <mrow> <mn>4.44</mn> <mo>&amp;times;</mo> <mi>f</mi> <mo>&amp;times;</mo> <mi>A</mi> <mi>e</mi> <mo>&amp;times;</mo> <mi>B</mi> <mi>m</mi> </mrow> </mfrac> </mrow>
Wherein, N is the number of turn of primary line bag, and U is transformer primary voltage, and f is transformer working frequency, and Bm is molded for ultracrystallite The peak value of magnetic core (1), Ae accumulates for the effective cross section of ultracrystallite shaped core (1).
CN201511033771.1A 2015-12-31 2015-12-31 A kind of high-frequency and high-voltage high-power rectifier transformer Active CN105632712B (en)

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CN102290222A (en) * 2011-04-28 2011-12-21 南京国电环保设备有限公司 High-power, high-frequency and high-voltage rectifier transformer
CN202339809U (en) * 2011-11-23 2012-07-18 杭州天明电子有限公司 Low-loss large-power high-frequency and high-voltage rectifier transformer for electrostatic precipitator
CN102814235A (en) * 2012-09-04 2012-12-12 镇江天力变压器有限公司 Parallel connection high frequency rectifying transformer for static dust extraction
CN103413663A (en) * 2013-08-27 2013-11-27 盐城正邦环保科技有限公司 High power, high frequency and high voltage rectifier transformer
CN103617876A (en) * 2013-12-09 2014-03-05 佛山市科蓝环保科技股份有限公司 Novel dry type small-size high-voltage rectification transformer structure
CN203931712U (en) * 2014-06-06 2014-11-05 合肥雷科电子科技有限公司 High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer
CN204720288U (en) * 2015-07-01 2015-10-21 北京京仪椿树整流器有限责任公司 A kind of low-voltage, high-current ultracrystallite high frequency transformer
CN104934207A (en) * 2015-07-03 2015-09-23 江苏容天机电科技有限公司 Novel high-frequency transformer framework in high current
CN205451992U (en) * 2015-12-31 2016-08-10 合肥雷科电子科技有限公司 High -power rectifier transformer of high frequency and high voltage

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