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 PDFInfo
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- 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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- bakelite
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
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- Coils Of Transformers For General Uses (AREA)
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
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 (7)
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>&times;</mo>
<mi>f</mi>
<mo>&times;</mo>
<mi>A</mi>
<mi>e</mi>
<mo>&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).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033771.1A CN105632712B (en) | 2015-12-31 | 2015-12-31 | A kind of high-frequency and high-voltage high-power rectifier transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033771.1A CN105632712B (en) | 2015-12-31 | 2015-12-31 | A kind of high-frequency and high-voltage high-power rectifier transformer |
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| CN105632712A CN105632712A (en) | 2016-06-01 |
| CN105632712B true CN105632712B (en) | 2017-08-25 |
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| CN109473263B (en) * | 2018-12-12 | 2024-04-16 | 中国工程物理研究院流体物理研究所 | High-frequency high-voltage transformer module |
| CN111768960B (en) | 2019-04-01 | 2022-02-18 | 台达电子企业管理（上海）有限公司 | Potting box and transformer |
| CN111768959B (en) | 2019-04-01 | 2022-03-08 | 台达电子企业管理（上海）有限公司 | Transformer device |
| CN111768947B (en) | 2019-04-01 | 2023-03-24 | 台达电子企业管理（上海）有限公司 | Transformer and method for manufacturing the same |
| CN111800023B (en) * | 2020-07-10 | 2022-05-06 | 许继电源有限公司 | High-frequency boosting transformer rectifying device |
| CN114203411A (en) * | 2021-12-16 | 2022-03-18 | 无锡汇普电子有限公司 | Coil structure special for preventing falling off of lead and framework |
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