CN203931712U - High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer - Google Patents

High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer Download PDF

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Publication number
CN203931712U
CN203931712U CN201420299952.3U CN201420299952U CN203931712U CN 203931712 U CN203931712 U CN 203931712U CN 201420299952 U CN201420299952 U CN 201420299952U CN 203931712 U CN203931712 U CN 203931712U
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China
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ferrite
winding
frequency
restructural
pressure
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Expired - Fee Related
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CN201420299952.3U
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Chinese (zh)
Inventor
邵康
李运海
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HEFEI LEIKE ELECTRONIC TECHNOLOGY Co Ltd
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HEFEI LEIKE ELECTRONIC TECHNOLOGY Co Ltd
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Abstract

The utility model relates to a kind of high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer, comprise ferrite combination magnetic core, sheathed armature winding, secondary winding unit group successively from inside to outside on it, between armature winding and secondary winding unit group, insulating barrier is set, the outside of ferrite combination magnetic core is connected and fixed by bracing frame unit.The utility model adopts modularization, restructural composite type mentality of designing, according to required transformer gross power output size, increase the length of magnetic path, increase magnetic core window area, increase primary and secondary wire diameter, increase secondary commutation winding number, thereby realize can float high pressure, plus or minus High voltage output, multiple power combined high-power high-frequency and high-voltage rectifier transformer.

Description

High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer
Technical field
The utility model relates to transformer technology field, especially a kind of high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer.
Background technology
In modern power-supply device, commonly use high-power high voltage power supply, its purposes is very extensive, has very important application in occasions such as energy conversion, particle generation and acceleration, laser, national defence.
Existing high-power high-frequency high-voltage power supply, inverting has multiple classification, for different invertings, also different to the requirement of high frequency transformer.The saturated magnetic permeability of ultramicro-crystal magnetic core that existing high-power high-frequency high-voltage power supply is conventional is high, processing technology is complicated, when use, to add guard shield, and the saturated magnetic permeability of conventional ferrite is low, but it can use mould molding to become various shape, add that simple primary and secondary skeleton just can use, the cost of batch production is low relatively.But, in high-power high-frequency high-voltage power transformer, due to power, environment for use, whether float, the difference such as output ceiling voltage, generally all need to carry out particular design, particularly use ultramicro-crystal magnetic core, also need customized guard shield, increased design cycle and the cost of high-power high-frequency high-voltage power supply for this reason.
Utility model content
The high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformers that the purpose of this utility model is to provide that a kind of design cycle is short, cost is low, combined and instant, realization can float high pressure, output plus or minus high pressure, the many groups of output high pressure.
For achieving the above object, the utility model has adopted following technical scheme: a kind of high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer, comprise ferrite combination magnetic core, the sheathed armature winding of concentric shafts, secondary winding unit group successively from inside to outside on it, between armature winding and secondary winding unit group, insulating barrier is set, the outside of ferrite combination magnetic core is connected and fixed by bracing frame unit.
Described ferrite combination magnetic core comprises the U-shaped FERRITE CORE of two opening positioned opposite, horizontal sandwiched multiple lengthening ferrite magnetic posts between the magnetic column end of the two, sheathed armature winding, secondary winding unit group successively from inside to outside on the top magnetic post of ferrite combination magnetic core, wrap insulate medium paper film on the below magnetic post of ferrite combination magnetic core, two U-shaped FERRITE CORE are connected and fixed by bracing frame unit.
Described insulating barrier is any one in air dielectric, insulating transformer oil, epoxy resin, flame-retarded heat-conducting liquid embedding AB glue.
Described armature winding is made up of elementary skeleton and elementary line bag, elementary skeleton is tightly placed in U-shaped FERRITE CORE and lengthens on ferrite magnetic post, elementary line cladding winding is on elementary skeleton, the arranged outside insulating barrier of elementary line bag, secondary winding unit group is connected to form side by side by multiple secondary winding unit, secondary winding unit is by secondary framework, secondary wire bag and cowling panel composition, secondary wire cladding winding is on secondary framework, multiple secondary winding unit connects side by side, jointly be set on armature winding and and armature winding between arrange insulating barrier, on cowling panel, offer the circular hole matching with the end of secondary framework.
Support frame as described above unit comprises bracing frame body, epoxy resin retainer ring and support column, epoxy resin retainer ring is set in two U-shaped FERRITE CORE and is positioned at the magnetic post inner side of top and is tightly resisted against on the both sides of secondary winding unit group, on epoxy resin retainer ring, installation portion is set, in installation portion, offer screwed hole, bracing frame body is close to the magnetic post outside of U-shaped FERRITE CORE and is arranged, on bracing frame body, offer multiple installing holes, screw is arranged in the screwed hole of epoxy resin retainer ring through installing hole, support column is close to two U-shaped FERRITE CORE and is positioned at the magnetic post of below and lengthens ferrite magnetic post layout, the two ends of support column are connected by screw and bracing frame body.
Welding rectifier circuit on described cowling panel, described rectification circuit is bridge rectifier; The number of described secondary framework, cowling panel, secondary wire bag is identical, and the length of described elementary skeleton is consistent with the monolateral winding length of ferrite combination magnetic core.
Between the both sides of described secondary winding unit group and inner side, the two ends of ferrite combination magnetic core, leave safe distance d, the length of described secondary winding unit group be the monolateral winding length of ferrite combination magnetic core and the safe distance of twice poor, wherein safe distance d is the electrical safety distance of transformer ceiling voltage output and U-shaped FERRITE CORE, the total number of turns N2 of described secondary wire bag is output ceiling voltage U2 is multiplied by elementary line bag again number of turn N divided by primary voltage U, that is:
N 2 = U 2 U * N .
The computing formula of the number of turn N of described elementary line bag is , wherein, N is the number of turn of elementary line bag, and U is primary voltage, and f is transformer operating frequency, the peak value that Bm is U-shaped FERRITE CORE, the effective cross section that Ae is U-shaped FERRITE CORE is long-pending.
As shown from the above technical solution, the utility model adopts modularization, restructural composite type mentality of designing, according to required transformer gross power output size, increase the length of magnetic path, increase magnetic core window area, increase primary and secondary wire diameter, increase secondary commutation winding number, thereby realize can float high pressure, plus or minus High voltage output, multiple power combined high-power high-frequency and high-voltage rectifier transformer.
The utility model is by increasing or reduce the number that lengthens ferrite magnetic post, secondary winding unit, thereby more easily transformer combined and reconstruct, realizes the design cycle short, and cost is low, the feature of combined and instant; The utility model, by the thickness of different insulative layer being set and adopting different insulative material, makes transformer realize the function of can float different high pressure, output plus or minus high pressure; The utility model secondary winding unit group adopts multiple secondary winding unit to connect and combine side by side, thereby makes transformer realize the function of multiple power combination, the many groups of output high pressure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A cutaway view of the present utility model;
Fig. 3 is armature winding in Fig. 1, secondary winding unit and ferrite combination magnetic core sectional view;
Fig. 4 is electrical schematic diagram of the present utility model.
Embodiment
A kind of high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer, comprise ferrite combination magnetic core 10, the sheathed armature winding 20 of concentric shafts successively from inside to outside on it, secondary winding unit group, between armature winding 20 and secondary winding unit group, insulating barrier 40 is set, the outside of ferrite combination magnetic core 10 is connected and fixed by bracing frame unit 50, as Fig. 1, 2, shown in 3, described insulating barrier 40 is air dielectric, insulating transformer oil, epoxy resin, any one in flame-retarded heat-conducting liquid embedding AB glue, its dielectric voltage withstand degree is decided by the size of exporting ceiling voltage size or required unsteady high pressure, make transformer realize the function of the High voltage output that can float.
As shown in Figure 1, 2, 3, described ferrite combination magnetic core 10 comprises the U-shaped FERRITE CORE 11 of two opening positioned opposite, horizontal sandwiched multiple lengthening ferrite magnetic posts 12 between the magnetic column end of the two, sheathed armature winding 20, secondary winding unit group successively from inside to outside on the top of ferrite combination magnetic core 10, wrap insulate medium paper film on the below of ferrite combination magnetic core 10, two U-shaped FERRITE CORE 11 are connected and fixed by bracing frame unit 50.The number that lengthens ferrite magnetic post 12 increases according to the increase of required transformer efficiency capacity, and the model of described U-shaped FERRITE CORE 11 is UY20, UF101, UF120 etc.Visible, ferrite combination magnetic core 10 is by two U-shaped FERRITE CORE 11, even number lengthens ferrite magnetic post 12 and combines, utilize the window area that increases the method for length of magnetic path increase magnetic core, thereby can hold high-power transformer at the beginning of, secondary wire, its monolateral winding length is by the size of U-shaped FERRITE CORE 11, lengthen the monolateral number of ferrite magnetic post 12, the length of single lengthening ferrite magnetic post 12 determines jointly, the effective area of its window coiling is by the size of required transformer efficiency capacity, magnetic core sectional area, operating frequency, the high pressure size of floating waits decision.
As Fig. 1, 2, shown in 3, described armature winding 20 is made up of elementary skeleton 21 and elementary line bag 22, elementary skeleton 21 is tightly placed in U-shaped FERRITE CORE 11 and lengthens on ferrite magnetic post 12, elementary line bag 22 is wrapped on elementary skeleton 21, the arranged outside insulating barrier 40 of elementary line bag 22, secondary winding unit group is connected to form side by side by multiple secondary winding unit 30, secondary winding unit 30 is by secondary framework 31, secondary wire bag 32 and cowling panel 33 form, secondary wire bag 32 is wrapped on secondary framework 31, multiple secondary winding unit 30 connects side by side, jointly be set on armature winding 20 and and armature winding 20 between arrange insulating barrier 40, on cowling panel 33, offer the circular hole matching with the end of secondary framework 31.
Support frame as described above unit 50 comprises bracing frame body 51, epoxy resin retainer ring 52 and support column 53, epoxy resin retainer ring 52 is set in two U-shaped FERRITE CORE 11 and is positioned at the magnetic post inner side of top and is tightly resisted against on the both sides of secondary winding unit group, installation portion 52a is set on epoxy resin retainer ring 52, in installation portion 52a, offer screwed hole, bracing frame body 51 is close to the magnetic post outside of U-shaped FERRITE CORE 11 and is arranged, on bracing frame body 51, offer multiple installing holes, screw is arranged in the screwed hole of epoxy resin retainer ring 52 through installing hole, support column 53 is close to two U-shaped FERRITE CORE 11 and is positioned at the magnetic post of below and lengthens ferrite magnetic post 12 and arrange, the two ends of support column 53 are connected by screw and bracing frame body 51.
As shown in Figure 4, welding rectifier circuit 33a on described cowling panel 33, described rectification circuit is bridge rectifier; The number of described secondary framework 31, cowling panel 33, secondary wire bag 32 is identical, and the length of described elementary skeleton 21 is consistent with the monolateral winding length of ferrite combination magnetic core 10.Described secondary framework 31 adopts epoxy bucket to process; The described certain number of turn of secondary wire bag 32 use silk-covered wire coiling, its number of turn is decided by total number of secondary winding unit group total number of turns and secondary winding unit, and its output is connected with the input of cowling panel 32; The rectifier system of described cowling panel 32 is bridge rectifier, and its output is connected with the input of next cowling panel 32.
Between the both sides of described secondary winding unit group and inner side, the two ends of ferrite combination magnetic core 10, leave safe distance d, the length of described secondary winding unit group be the monolateral winding length of ferrite combination magnetic core 10 and the safe distance of twice poor, wherein safe distance d is the electrical safety distance of transformer ceiling voltage output and U-shaped FERRITE CORE 11, the total number of turns N2 of described secondary wire bag 32 is output ceiling voltage U2 is multiplied by elementary line bag 22 again number of turn N divided by primary voltage U, that is:
N 2 = U 2 U * N .
The computing formula of the number of turn N of described elementary line bag 22 is , wherein, N is the number of turn of elementary line bag, and U is primary voltage, and f is transformer operating frequency, and Bm is the peak value of U-shaped FERRITE CORE 11, Ae is that the effective cross section of U-shaped FERRITE CORE 11 is long-pending.
Embodiment mono-
This example is voltage 10kV, electric current 3A, the high frequency transformer that power capacity Po is 30kW.Transformer operating frequency is 50kHz, and the topology before this primary adopts full-bridge mode, and primary voltage U is 500V.
As shown in Figure 1, 2, the U-shaped FERRITE CORE 11 of ferrite combination magnetic core 10 adopts UF120C/90/30, and its sectional area Ae is 9.0cm 2, monolateral winding length is 180mm, the effective area of its window coiling is 104.4cm 2, between two U-shaped FERRITE CORE 11, add and respectively add to lengthen ferrite magnetic post 12 docking one by one; Lengthen the length of ferrite magnetic post 12 and the monolateral inside length of ferrite combination magnetic core 11 and be all mutually 60mm, sectional area, the shape of its sectional area, shape and U-shaped FERRITE CORE 11 are the same, and its total number is two, each one on one side.
As shown in Figure 1, 2, the wire of armature winding 20 is evenly wound on elementary skeleton 21, and the number of turn of elementary line bag 22 is 12 circles.Armature winding 20 adopts three rhizoid envelope curve 0.1*700 parallel uniform coiling 12 circles on elementary skeleton 21, leading-out end reinforce, draw length and be greater than 15cm, elementary line bag 22 from one around to other end, return and start from elementary skeleton 21 one sides again, two groups of primary wires are drawn again; The monolateral winding length of the length of elementary skeleton 21 and ferrite combination magnetic core 11 is consistent is 180mm.Insulating barrier 40 adopts oil immersed type insulation, controls the two ends of secondary winding unit group and the distance of U-shaped FERRITE CORE 11 simultaneously, makes transformer realize the function of the high pressure that can float.Bracing frame unit 50 comprises the stainless bracing frame body of two epoxy resin retainer rings 51, two 51, two support columns 53, for stationary transformer.
As shown in Figure 3,4, secondary winding unit group is connected and combines side by side on insulating barrier 40 by ten sections of secondary winding unit 30, and its length is 140mm, and total number of turns is 240 circles, and secondary wire bag 32 adopts individual thread envelope curve 0.1 × 100 honeycomb winding coiling 24 circles.The number of turn of secondary wire bag 32 is 24 circles, and secondary framework 31 adopts epoxy bucket to process; Between ten sections of secondary frameworks 31, press from both sides cowling panel 32, and mutually link closely, two is used epoxy resin retainer ring 52 fixing, after installing, between secondary framework 31 and elementary line bag 22, there is gap more than 3mm, be convenient to the mobile heat radiation of transformer oil and insulation, two terminal consolidation process of every section of secondary winding unit 30, become 90 degree to draw, be convenient to connect cowling panel 32.
In a word, the utility model adopts modularization, restructural composite type mentality of designing, according to required transformer gross power output size, increase the length of magnetic path, increase magnetic core window area, increase primary and secondary wire diameter, increase secondary commutation winding number, thereby realize can the float output of high pressure, positive or negative high voltage, multiple power combined high-power high-frequency and high-voltage rectifier transformer.

Claims (8)

1. a high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer, it is characterized in that: comprise ferrite combination magnetic core (10), the sheathed armature winding of concentric shafts (20), secondary winding unit group successively from inside to outside on it, between armature winding (20) and secondary winding unit group, insulating barrier (40) is set, the outside of ferrite combination magnetic core (10) is connected and fixed by bracing frame unit (50).
2. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 1, it is characterized in that: described ferrite combination magnetic core (10) comprises the U-shaped FERRITE CORE (11) of two opening positioned opposite, horizontal sandwiched multiple lengthening ferrite magnetic posts (12) between the magnetic column end of the two, sheathed armature winding (20) successively from inside to outside on the top magnetic post of ferrite combination magnetic core (10), secondary winding unit group, wrap insulate medium paper film on the below magnetic post of ferrite combination magnetic core (10), two U-shaped FERRITE CORE (11) are connected and fixed by bracing frame unit (50).
3. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 1, is characterized in that: described insulating barrier (40) is any one in air dielectric, insulating transformer oil, epoxy resin, flame-retarded heat-conducting liquid embedding AB glue.
4. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 2, it is characterized in that: described armature winding (20) is made up of elementary skeleton (21) and elementary line bag (22), elementary skeleton (21) is tightly placed in U-shaped FERRITE CORE (11) and lengthens on ferrite magnetic post (12), elementary line bag (22) is wrapped on elementary skeleton (21), the arranged outside insulating barrier (40) of elementary line bag (22), secondary winding unit group is connected to form side by side by multiple secondary winding unit (30), secondary winding unit (30) is by secondary framework (31), secondary wire bag (32) and cowling panel (33) composition, secondary wire bag (32) is wrapped on secondary framework (31), multiple secondary winding unit (30) connects side by side, jointly be set in armature winding (20) upper and and armature winding (20) between arrange insulating barrier (40), on cowling panel (33), offer the circular hole matching with the end of secondary framework (31).
5. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 2, it is characterized in that: support frame as described above unit (50) comprise bracing frame body (51), epoxy resin retainer ring (52) and support column (53), epoxy resin retainer ring (52) is set in two U-shaped FERRITE CORE (11) and is positioned at the magnetic post inner side of top and is tightly resisted against on the both sides of secondary winding unit group, installation portion (52a) is set on epoxy resin retainer ring (52), in installation portion (52a), offer screwed hole, bracing frame body (51) is close to the magnetic post outside of U-shaped FERRITE CORE (11) and is arranged, bracing frame body is offered multiple installing holes on (51), screw is arranged in the screwed hole of epoxy resin retainer ring (52) through installing hole, support column (53) is close to two U-shaped FERRITE CORE (11) and is positioned at the magnetic post of below and lengthens ferrite magnetic post (12) layout, the two ends of support column (53) are connected by screw and bracing frame body (51).
6. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 4, is characterized in that: the upper welding rectifier circuit (33a) of described cowling panel (33), and described rectification circuit is bridge rectifier; The number of described secondary framework (31), cowling panel (33), secondary wire bag (32) is identical, and the length of described elementary skeleton (21) is consistent with the monolateral winding length of ferrite combination magnetic core (10).
7. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 4, it is characterized in that: between the both sides of described secondary winding unit group and inner side, the two ends of ferrite combination magnetic core (10), leave safe distance d, the length of described secondary winding unit group is the poor of the monolateral winding length of ferrite combination magnetic core (10) and the safe distance d of twice, wherein safe distance d is the electrical safety distance of transformer ceiling voltage output and U-shaped FERRITE CORE (11), the total number of turns N2 of described secondary wire bag (32) is multiplied by the number of turn N of elementary line bag (22) again divided by primary voltage U for exporting ceiling voltage U2, that is:
8. high-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer according to claim 4, is characterized in that: the computing formula of the number of turn N of described elementary line bag (22) is wherein, N is the number of turn of elementary line bag, and U is primary voltage, and f is transformer operating frequency, and Bm is the peak value of U-shaped FERRITE CORE (11), and Ae is that the effective cross section of U-shaped FERRITE CORE (11) is long-pending.
CN201420299952.3U 2014-06-06 2014-06-06 High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer Expired - Fee Related CN203931712U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104021916A (en) * 2014-06-06 2014-09-03 合肥雷科电子科技有限公司 High-power floating high-voltage reconstructive combined type high-frequency and high-voltage rectifier transformer
CN105214846A (en) * 2015-11-03 2016-01-06 佛山市科蓝环保科技股份有限公司 Electrostatic cleaner shock pulse electric current restraining device and installation method
CN105405611A (en) * 2015-11-11 2016-03-16 铜陵瑞博电子科技有限公司 Novel transformer
CN105428043A (en) * 2015-12-30 2016-03-23 中国科学院长春光学精密机械与物理研究所 Slot type combined bobbin of high-frequency high-voltage transformer
CN105632712A (en) * 2015-12-31 2016-06-01 合肥雷科电子科技有限公司 High-frequency, high-voltage and high-power rectification transformer
CN108962549A (en) * 2018-06-27 2018-12-07 苏州汇川技术有限公司 Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104021916A (en) * 2014-06-06 2014-09-03 合肥雷科电子科技有限公司 High-power floating high-voltage reconstructive combined type high-frequency and high-voltage rectifier transformer
CN104021916B (en) * 2014-06-06 2016-03-09 合肥雷科电子科技有限公司 High-power floating high pressure restructural composite type high-frequency and high-voltage rectifier transformer
CN105214846A (en) * 2015-11-03 2016-01-06 佛山市科蓝环保科技股份有限公司 Electrostatic cleaner shock pulse electric current restraining device and installation method
CN105214846B (en) * 2015-11-03 2017-03-22 佛山市科蓝环保科技股份有限公司 Shock pulse current suppression device of electrostatic purifier and mounting method for shock pulse current suppression device
CN105405611A (en) * 2015-11-11 2016-03-16 铜陵瑞博电子科技有限公司 Novel transformer
CN105428043A (en) * 2015-12-30 2016-03-23 中国科学院长春光学精密机械与物理研究所 Slot type combined bobbin of high-frequency high-voltage transformer
CN105632712A (en) * 2015-12-31 2016-06-01 合肥雷科电子科技有限公司 High-frequency, high-voltage and high-power rectification transformer
CN105632712B (en) * 2015-12-31 2017-08-25 合肥雷科电子科技有限公司 A kind of high-frequency and high-voltage high-power rectifier transformer
CN108962549A (en) * 2018-06-27 2018-12-07 苏州汇川技术有限公司 Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer

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