CN106229123B - A kind of segmented high-power high-frequency high-voltage transformer and its segmentation winding method - Google Patents
A kind of segmented high-power high-frequency high-voltage transformer and its segmentation winding method Download PDFInfo
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- CN106229123B CN106229123B CN201610788520.2A CN201610788520A CN106229123B CN 106229123 B CN106229123 B CN 106229123B CN 201610788520 A CN201610788520 A CN 201610788520A CN 106229123 B CN106229123 B CN 106229123B
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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
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
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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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/122—Insulating between turns or between winding layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
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Abstract
The invention discloses a kind of segmented high-power high-frequency high-voltage transformers, and including magnetic core, the outside of magnetic core is enclosed with insulation framework, is wound with armature winding and secondary windings in insulation framework successively, insulating layer is wound between armature winding and secondary windings.The invention also discloses a kind of segmentation winding methods of segmented high frequency high voltage transformer, on the basis of original primary and secondary winding hierarchical design, the voltage between layers of primary and secondary winding is further reduced, so as to reduce the insulation index of the interlayer of primary and secondary winding.In addition, the segmented winding method of high frequency high voltage transformer can be effectively reduced primary and secondary winding equivalent parasitic capacitances and primary and secondary winding between equivalent parasitic capacitances, so as to reduce conducted EMI noise.Meanwhile the invention also provides a kind of segments designing schemes of high frequency high voltage transformer, help to reduce the volume of high frequency high voltage transformer and reduce the leakage inductance of transformer.
Description
Technical field
The invention belongs to high-frequency high-voltage switch power source technical fields, and in particular to a kind of segmented high-power high-frequency high-voltage becomes
Depressor, the invention further relates to the segmentation winding methods of above-mentioned high frequency high voltage transformer.
Background technology
High frequency high voltage transformer is the power transformer that working frequency is more than 10kHz, it includes magnetic core, armature winding, secondary
Grade winding and corresponding insulation configuration.The voltage of the secondary windings of high frequency high voltage transformer is generally all very big, necessarily requires in this way
Secondary windings has higher insulation, and it is one of problem in current high frequency high voltage transformer development process to insulate.Current solution
Certainly secondary windings is mainly layered coiling by scheme, but since the voltage of secondary windings is larger, multi-segment can increase high frequency height
The volume of pressure transformer, while increase the leakage inductance of transformer.In addition, using multi-segment structure, high frequency high voltage transformer just, it is secondary
The parasitic capacitance of grade winding interlayer can increase, this can provide coupling path for conducted EMI noise.
Invention content
The object of the present invention is to provide a kind of segmented high-power high-frequency high-voltage transformers, solve current transformer layering
The problem of volume increase caused by structure is more, leakage inductance increase.
It is a further object of the present invention to provide a kind of segmentation winding methods of segmented high-power high-frequency high-voltage transformer.
The first technical solution of the present invention is a kind of segmented high-power high-frequency high-voltage transformer, including magnetic
Core, the outside of magnetic core are enclosed with insulation framework, are wound with armature winding and secondary windings in insulation framework successively, armature winding and
Insulating layer is wound between secondary windings.
The characteristics of the first technical solution of the present invention, also resides in,
Wherein insulation framework includes completely identical in structure skeleton first part and skeleton second part, skeleton first part
Structure with skeleton second part is：Including the sleeve a, sleeve b and sleeve c being coaxially socketed from inside to outside successively, the one of sleeve a
Hold end face concordant with one end end face of one end end face of sleeve b, sleeve c respectively, the other end face of sleeve a respectively with sleeve b
The other end face, the other end face of sleeve c it is concordant, between one end end face of sleeve c and one end end face of sleeve b be equipped with gear
Plate, baffle simultaneously with the sleeve c end end faces, sleeve b this end end face is concordant sets, and by the sleeve c end end faces and sleeve b
Gap between the end end face is blocked, and it is equal that at least two segmentation a, each segmentation a are equipped between sleeve b and sleeve a
Even to be distributed between sleeve b and sleeve a, the outer wall of sleeve c is equipped at least two segmentation b, segmentation a and segmentation b numbers
Measure identical, each a that is segmented accordingly is located along the same line with a segmentation b, and each segmentation a and each segmentation b with
The central axis upright of sleeve a, sleeve b and sleeve c.
Magnetic core is arranged between sleeve b and sleeve c, skeleton first part and skeleton second part it is symmetrical it is fit by magnetic core into
Row package, one end end face of magnetic core are covered by the baffle in skeleton first part, and the other end face of magnetic core is by second, skeleton
Baffle covering on point, insulation framework is as the insulation between magnetic core and armature winding.
Wherein armature winding and secondary windings are at least 1 layer, between adjacent two layers armature winding, adjacent two layers secondary around
Insulating layer is equipped between group.
Second of technical solution of the present invention is a kind of segmentation coiling side of segmented high frequency high voltage transformer
Method specifically includes following steps：
Step 1, the coiling parameter of high frequency high voltage transformer is determined；
Step 2, the hierarchy number m of armature winding is calculated respectivelypWith the hierarchy number m of secondary windingss；
Step 3, the segments n of high frequency high voltage transformer is calculated, segments n is equal to segmentation a and is segmented the quantity of a b；
Step 4, the result of calculation according to obtained by step 3 recalculates the hierarchy number of armature winding and secondary windings respectively,
And it is denoted as m respectivelyp' and ms', respectively by mp' and mp、msWith ms' be compared, smaller value is taken as armature winding and secondary windings
Hierarchy number；
Step 5, the result of calculation according to obtained by step 3 sets segmentation a and the segmentation of respective numbers in insulation framework
B；
Specifically, the segmentation a identical with segments is set between sleeve a and sleeve b；External in sleeve c is set
The segmentation b identical with segments；
Step 6, according to the smaller armature winding hierarchy number coiling high frequency high voltage transformer taken in step 4 it is primary around
Group, the segmentation a set according to step 5 during coiling and segmentation b carry out segmentation coiling for boundary；
Step 7, according to the smaller secondary windings hierarchy number coiling high frequency high voltage transformer taken in step 4 it is primary around
Group, the segmentation a set according to step 5 during coiling and segmentation b carry out segmentation coiling for boundary.
The characteristics of second of technical solution of the present invention, also resides in,
Determining parameter is specially wherein in step 1：
High frequency high voltage transformer magnetic core material, the armature winding number of turn, number of share of stock and wire gauge；Secondary winding turns, number of share of stock
And wire gauge.
The detailed process of wherein step 2 is：
It is known：Primary winding voltage Up, armature winding interlayer maximum pressure resistance U1；
Secondary winding voltage Us, secondary windings interlayer maximum pressure resistance U2；
The hierarchy number m of armature winding is calculated according to equation below (1)p：
Wherein, as 0 ＜ mpWhen≤1, mp=1；
As a ＜ mpDuring≤b, wherein b ＞ a >=1, b-a=2, and a, b are odd number, at this point,
As a ＜ mpDuring≤a+2 × 15%, mp=a；
As the ＜ m of a+2 × 15%pDuring≤b, mp=b；
The hierarchy number m of secondary windings is calculated according to equation below (2)s：
As 0 ＜ msWhen≤1, ms=1；
Wherein,
As c ＜ msDuring≤d, wherein d ＞ c >=1, d-c=2, and c, d are odd number, at this point,
As c ＜ msDuring≤c+2 × 15%, ms=c；
As the ＜ m of c+2 × 15%sDuring≤d, ms=d.
Wherein, the detailed process of step 3 is：
The segments n of high frequency high voltage transformer is calculated according to equation below (3)：
N=-15.38lgk1-18.77 (3)；
Wherein, k1=min { Cpn,Csn,Cpsn, k1For target proportion coefficient；
CpnParasitic capacitance proportionality coefficient for armature winding；
CsnParasitic capacitance proportionality coefficient for secondary windings；
CpsnParasitic capacitance proportionality coefficient between primary and secondary winding；
Cpn、Csn、CpsnValue range exist
The detailed process of wherein step 4 is：
The number of stories m of armature winding in high frequency high voltage transformer is recalculated according to equation below (4)p′：
mp'=mp×k2(4)；
k2Segmented compensation coefficient for armature winding；
Wherein,
Work as mp'≥mpWhen, the hierarchy number of armature winding is mp, conversely, the hierarchy number of armature winding is mp′；
The number of stories m of secondary windings in high frequency high voltage transformer is recalculated according to equation below (5)s′：
ms'=ms×k3(5)；
Wherein, k3Segmented compensation coefficient for secondary windings；
Work as ms'≥msWhen, the hierarchy number of secondary windings is ms, conversely, the hierarchy number of secondary windings is ms′。
The detailed process of wherein step 6 is：
Step 6.1, the armature winding hierarchy number determined according to step 4, the coiling first layer armature winding in insulation framework,
Specifically winding process is：
To be located at collinear a and segmentation b of a segmentation as a boundary group, two neighboring boundary group
Magnetic core is uniformly divided into n sections, wherein one section is taken as paragraph 1, starts coiling armature winding, the coiling of paragraph 1 armature winding is completed
Afterwards, the 2nd section of coiling is carried out to the inside of sleeve a across boundary group from the outside of sleeve c, according to from paragraph 1 to the 2nd section of transition
When cross-line mode coiling residue hop count successively, until by divide n sections coiling completion；
Step 6.2, the armature winding according to the winding process coiling residue number of plies of first layer armature winding in step 6.1 is straight
To until complete；During coiling armature winding, the coiling insulating layer between adjacent two layers armature winding；
Step 6.3, the coiling insulating layer on the armature winding after the completion of step 6.2 coiling；
Step 6.4, vacuum paint dipping processing is carried out to high frequency high voltage transformer.
The detailed process of wherein step 7 is：
Step 7.1, the secondary windings hierarchy number determined according to step 4, the coiling the on the insulating layer of armature winding coiling
One hierarchical level winding, specific winding process are：
To be located at collinear a and segmentation b of a segmentation as a boundary group, two neighboring boundary group
Magnetic core is uniformly divided into n sections, one section opposite with armature winding inlet wire is taken to start coiling secondary windings, paragraph 1 as paragraph 1
After the completion of secondary windings coiling, the 2nd section of coiling is carried out to the inside of sleeve a across boundary group from the outside of sleeve c, according to from
Paragraph 1 is to cross-line mode during the 2nd section of transition successively coiling residue hop count, until divided n sections coiling is completed；
Step 7.2, the secondary windings according to the winding process coiling residue number of plies of first layer secondary windings in step 7.1 is straight
To until complete；During coiling secondary windings, the coiling insulating layer between adjacent two layers secondary windings；
Step 7.3, the coiling insulating layer on the secondary windings after the completion of step 7.2 coiling；
Step 7.4, vacuum paint dipping processing is carried out to high frequency high voltage transformer.
The invention has the advantages that the segmented winding method of high frequency high voltage transformer proposed by the present invention and existing
Method is compared the advantage is that on the basis of original primary and secondary winding hierarchical design, further reduces primary and secondary winding
Voltage between layers, so as to reduce the insulation index of the interlayer of primary and secondary winding.In addition, the segmented of high frequency high voltage transformer
Winding method can be effectively reduced primary and secondary winding equivalent parasitic capacitances and primary and secondary winding between equivalent parasitic electricity
Hold, so as to reduce conducted EMI noise.Meanwhile the invention also provides a kind of segments design sides of high frequency high voltage transformer
Case helps to reduce the volume of high frequency high voltage transformer and reduces the leakage inductance of transformer.
Description of the drawings
Fig. 1 is a kind of transverse sectional view of segmented high-power high-frequency high-voltage transformer of the present invention；
Fig. 2 is the electric field distribution curve between two layers of the transformer secondary output winding of the layer winding of unsegmented；
Fig. 3 is the transformation for dividing four sections of windings in a kind of embodiment of the segmentation winding method of segmented high frequency high voltage transformer
Electric field distribution curve between two layers of device secondary windings.
In figure, 1. magnetic cores, 2. armature windings, 3. secondary windings, 4. insulating layers, 5. sleeve a, 6. sleeve b, 7. sleeve c, 8.
It is segmented an a, 9. segmentation b.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of segmented high-power high-frequency high-voltage transformer of the present invention, structure as shown in Figure 1, including magnetic core 1, magnetic core 1
Outside is enclosed with insulation framework, is wound with armature winding 2 and secondary windings 3 in insulation framework successively, armature winding 2 and it is secondary around
Insulating layer 4 is wound between group 3.
Insulation framework includes completely identical in structure skeleton first part and skeleton second part, skeleton first part and bone
The structure of frame second part is：Including the sleeve a5, sleeve b6 and sleeve c7 being coaxially socketed from inside to outside successively, the one of sleeve a5
Hold end face concordant with one end end face of one end end face of sleeve b6, sleeve c7 respectively, the other end face of sleeve a5 respectively with set
The other end face, the other end face of sleeve c7 of cylinder b6 is concordant, one end end face of sleeve c7 and one end end face of sleeve b6 it
Between be equipped with baffle, baffle is annular, and baffle is put down simultaneously with end (one end) end face of sleeve c7 end (one end) end faces, sleeve b6
Neat setting, and the gap between the sleeve c7 end end faces and the end end face of sleeve b6 is blocked, sleeve b6 and sleeve
At least two segmentation a8 are equipped between a5, each a8 that is segmented is evenly distributed between sleeve b6 and sleeve a5, outside sleeve c7
It is identical with segmentation b9 quantity that wall is equipped at least two segmentation b9, segmentation a8, each segmentation a8 accordingly with one point
A section b9 is located along the same line, and the center of each segmentation a8 and each segmentation b9 with sleeve a5, sleeve b6 and sleeve c7
Axis is vertical.
Magnetic core 1 is arranged between sleeve b6 and sleeve c7, and skeleton first part and skeleton second part are symmetrical fit by magnetic
Core 1 is wrapped up, and one end end face of magnetic core 1 is covered by the baffle in skeleton first part, and the other end face of magnetic core 1 is by skeleton
Baffle covering on second part, insulation framework is as the insulation between magnetic core 1 and armature winding 2.
Wherein armature winding 2 and secondary windings 3 are at least 1 layer, between adjacent two layers armature winding 2, adjacent two layers
Insulating layer 4 is equipped between grade winding 3.
A kind of segmentation winding method of segmented high frequency high voltage transformer of the present invention, specifically includes following steps：
Step 1, the coiling parameter of high frequency high voltage transformer is determined；
Determining parameter is specially：1 material of high frequency high voltage transformer magnetic core and shape, 2 number of turn of armature winding, number of share of stock and lead
Line gauge lattice；3 number of turn of secondary windings, number of share of stock and wire gauge；Between 2 interlayer of armature winding, armature winding 2 and secondary windings 3, it is secondary
Insulation index outside grade 3 interlayer of winding and secondary windings 3, and the specification of insulating paper is determined according to the index that insulate；Armature winding
Voltage Up, armature winding interlayer maximum pressure resistance U1；Secondary winding voltage Us, secondary windings interlayer maximum pressure resistance U2；
Step 2, the hierarchy number m of armature winding 2 is calculated respectivelypWith the hierarchy number m of secondary windings 3s；
The detailed process of step 2 is：
It is known：2 voltage U of armature windingp, 2 interlayer of armature winding maximum pressure resistance U1；
3 voltage U of secondary windingss, 3 interlayer of secondary windings maximum pressure resistance U2；
U herein1And U2Be come according to the insulating process that can accomplish in Practical Project it is determining, with primary and secondary winding electricity
It presses unrelated；
The hierarchy number m of armature winding is calculated according to equation below (1)p：
For result of calculation m in above formula (1)pSelection, it is contemplated that hierarchy number can facilitate transformer around primary for odd number
The coiling into and out of line of winding 2, it is specific as follows：
As 0 ＜ mpWhen≤1, mp=1；
As a ＜ mpDuring≤b, wherein b ＞ a >=1, b-a=2, and a, b are odd number, at this point,
As a ＜ mpDuring≤a+2 × 15%, mp=a；
As the ＜ m of a+2 × 15%pDuring≤b, mp=b；
The hierarchy number m of secondary windings is calculated according to equation below (2)s：
For result of calculation m in above formula (2)sSelection, it is contemplated that hierarchy number can facilitate transformer around secondary for odd number
The coiling into and out of line of winding 3, it is specific as follows：
As 0 ＜ msWhen≤1, ms=1；
As c ＜ msDuring≤d, wherein d ＞ c >=1, d-c=2, and c, d are odd number, at this point,
As c ＜ msDuring≤c+2 × 15%, ms=c；
As the ＜ m of c+2 × 15%sDuring≤d, ms=d.
Step 3, the segments n of high frequency high voltage transformer is calculated, segments n is equal to segmentation a8 and is segmented the number of a b9
Amount；Specific calculating process is as follows：
The segments n of high frequency high voltage transformer is calculated according to equation below (3)：
N=-15.38lgk1-18.77 (3)；
Wherein, k1=min { Cpn,Csn,Cpsn, k1For target proportion coefficient；
CpnParasitic capacitance proportionality coefficient for armature winding 2；CpnHigh frequency high voltage transformer armature winding 2 during for unsegmented
Equivalent parasitic capacitances and segmentation after high frequency high voltage transformer armature winding 2 preferable equivalent parasitic capacitances ratio；
CsnParasitic capacitance proportionality coefficient for secondary windings 3；CsnHigh frequency high voltage transformer secondary windings 3 during for unsegmented
Equivalent parasitic capacitances and segmentation after high frequency high voltage transformer secondary windings 3 preferable equivalent parasitic capacitances ratio；
CpsnParasitic capacitance proportionality coefficient between armature winding 2 and secondary windings 3；CpsnHigh-frequency and high-voltage during for unsegmented
High frequency high voltage transformer armature winding 2 after equivalent parasitic capacitances and segmentation between primary winding 2 and secondary windings 3
The ratio of preferable equivalent parasitic capacitances between secondary windings 3；
CpnValue range beCsnValue range existCpsnValue range exist
Step 4, the result of calculation according to obtained by step 3 recalculates the layering of armature winding 2 and secondary windings 3 respectively
Number, and it is denoted as m respectivelyp' and ms', by mp' and mpIt is compared, takes layering of the smaller value as armature winding 2 therebetween
Number；By msWith ms' be compared, take hierarchy number of the smaller value as secondary windings 3 therebetween；
The detailed process of step 4 is：
The number of stories m of armature winding 2 in high frequency high voltage transformer is recalculated according to equation below (4)p'：
mp'=mp×k2(4)；
Wherein, k2Segmented compensation coefficient for armature winding 2；k2Size and the segments n of high frequency high voltage transformer have
It closes, tables look-up to obtain generally according to practical experience value, shown in table 1 specific as follows；
Table 1
Table 1 is k2With the experience contrast table of segments n；
Work as mp'≥mpWhen, the hierarchy number of armature winding 2 is mp, work as mp' ﹤ mpWhen, the hierarchy number of armature winding 2 is mp′；
The number of stories m of secondary windings in high frequency high voltage transformer is recalculated according to equation below (5)s′：
ms'=ms×k3(5)；
Wherein, k3Segmented compensation coefficient for secondary windings；k3Size it is related with the segments n of high frequency high voltage transformer,
It tables look-up to obtain generally according to practical experience value, shown in table 2 specific as follows：
Table 2
| n | 1 | 2 | 3 | 4 | 5 | 6 |
| k3 | 1 | 0.88 | 0.76 | 0.65 | 0.55 | 0.47 |
| n | 7 | 8 | 9 | 10 | 11 | 12 |
| k3 | 0.41 | 0.36 | 0.33 | 0.30 | 0.27 | 0.25 |
Work as ms'≥msWhen, the hierarchy number of secondary windings is ms, work as ms' ﹤ msWhen, the hierarchy number of secondary windings is ms′；
Step 5, the result of calculation according to obtained by step 3 sets segmentation a8 and the segmentation of respective numbers in insulation framework
B9；Specifically, the segmentation a8 identical with segments is set between sleeve a5 and sleeve b6；External in sleeve c7 is set
The segmentation b9 identical with segments；
Step 6, according to the smaller armature winding hierarchy number coiling high frequency high voltage transformer taken in step 4 it is primary around
Group 2, the segmentation a8 set according to step 5 during coiling and segmentation b9 carry out segmentation coiling for boundary；
The detailed process of step 6 is：
Step 6.1, the armature winding hierarchy number determined according to step 4, the coiling first layer armature winding in insulation framework
2, specific winding process is：
To be located at collinear a8 and segmentation b9 of a segmentation as a boundary group, two neighboring boundary
Magnetic core 1 is uniformly divided into n sections by group, is taken wherein one section as paragraph 1, is started coiling armature winding 2, paragraph 1 armature winding coiling
After the completion, the coiling of the 2nd section of armature winding is carried out to the inside of sleeve a5 across boundary group from the outside of sleeve c7, according to from
1 section, to cross-line mode during the 2nd section of transition successively coiling residue hop count, is completed up to by divided n sections coiling；
Step 6.2, according to the armature winding 2 of the winding process coiling residue number of plies of first layer armature winding 2 in step 6.1
Until until complete；During coiling armature winding 2, the coiling insulating layer 4 between adjacent two layers armature winding；Insulating layer
4 in coiling, and the insulation winding structure of odd-level is：Strip insulation band longitudinal tape around；Even level insulation winding structure be：It is whole
Insulating paper transverse direction face around；Vacuum paint dipping often is carried out to high frequency high voltage transformer around two layers of insulation；
Step 6.3, the coiling insulating layer 4 on the armature winding 2 after the completion of step 6.2 coiling；During 4 coiling of insulating layer, very
Several layers of insulation winding structure is：Strip insulation band longitudinal tape around；Even level insulation winding structure be：Whole insulating paper transverse direction
Face around；Vacuum paint dipping often is carried out to high frequency high voltage transformer around two layers of insulation；
Step 6.4, vacuum paint dipping processing is carried out to high frequency high voltage transformer.
Step 7, according to the smaller secondary windings hierarchy number coiling high frequency high voltage transformer taken in step 4 it is secondary around
Group 3, the segmentation a8 set according to step 5 during coiling and segmentation b9 carry out segmentation coiling for boundary.
The detailed process of step 7 is：
Step 7.1, the secondary windings hierarchy number determined according to step 4, the coiling on the insulating layer 4 of 2 coiling of armature winding
First layer secondary windings 3, specific winding process are：
Secondary windings 3 carries out coiling in step 6.1 in determining decomposition group, i.e., is segmented item to be located at collinear one
For a8 and segmentation b9 as a boundary group, magnetic core is uniformly divided into n sections by two neighboring boundary group, is taken and armature winding 2
Inlet wire opposite one section starts coiling secondary windings 3, after the completion of paragraph 1 secondary windings coiling, from sleeve c7's as paragraph 1
Outside carries out the 2nd section of coiling to the inside of sleeve a5 across boundary group, according to from paragraph 1 to cross-line side during the 2nd section of transition
Formula coiling residue hop count successively, until by divide n sections coiling completion；
Step 7.2, according to the secondary windings of the winding process coiling residue number of plies of first layer secondary windings 3 in step 7.1
Until until complete；During coiling secondary windings 3, the coiling insulating layer 4 between adjacent two layers secondary windings 3；Insulation
During 4 coiling of layer, the insulation winding structure of odd-level is：Strip insulation band longitudinal tape around；Even level insulation winding structure be：It is whole
Insulating paper transverse direction face around；Vacuum paint dipping often is carried out to high frequency high voltage transformer around two layers of insulation；
Step 7.3, the coiling insulating layer 4 on the secondary windings 3 after the completion of step 7.2 coiling；During 4 coiling of insulating layer, very
Several layers of insulation winding structure is：Strip insulation band longitudinal tape around；Even level insulation winding structure be：Whole insulating paper transverse direction
Face around；Vacuum paint dipping often is carried out to high frequency high voltage transformer around two layers of insulation；
Step 7.4, vacuum paint dipping processing is carried out to high frequency high voltage transformer.
Embodiment 1
It is circle the ribbon shape iron core to determine 1 structure of high frequency high voltage transformer magnetic core；2 number of turn of armature winding is 9 circles, and number of share of stock is
190 strands；3 number of turn of secondary windings is 120 circles, and number of share of stock is 12 strands, and conducting wire is that line footpath is 0.63mm, and pressure resistance is the enameled wire of 1.3kV；
The insulation index of 2 interlayer of armature winding be 20kV, insulating paper used be pressure resistance 6.0kV white composite-insulating paper, armature winding 2
Insulation index between secondary windings 3 is 36kV, and insulating paper used is the white composite-insulating paper of pressure resistance 6.0kV, secondary around
3 layer insulation indexs of group are 20kV, and insulating paper used is the white composite-insulating paper of pressure resistance 6.0kV, and 3 outside of secondary windings becomes
Depressor external protection insulation index is 10kV, and insulating paper used is the mylar of pressure resistance 3.0kV；
It is known：Primary winding voltage Up=500V, armature winding interlayer pressure resistance U1=1500V；
Secondary winding voltage Us=6000V, secondary windings interlayer pressure resistance U2=1500V；
The hierarchy number calculation formula of armature winding 2 is as follows：
According to above formula, can calculate the armature winding hierarchy number of high frequency high voltage transformer is：
Due to 0 ＜ mp=0.33≤1, therefore mp=1；
The hierarchy number calculation formula of secondary windings 3 is as follows：
According to above formula, the secondary windings hierarchy number that can obtain high frequency high voltage transformer is：
Due to 3 ＜ ms=4≤5, i.e. c=3, d=5；And the ＜ m of 3+2 × 15%s=4≤5, therefore ms=d=5；
In conclusion 2 hierarchy number of armature winding for determining high frequency high voltage transformer is 1 layer, 3 hierarchy number of secondary windings is 5
Layer.
Determine the segments n (i.e. the segments of armature winding 2 and secondary windings 3) of high frequency high voltage transformer；It is specific to calculate
It is as follows：
By Cpn,Csn,CpsnTaken according to representative valueDetermine
Then the segments of high frequency high voltage transformer is：
Here it is 4 to take n, i.e., segments is 4 sections.
Redefine the hierarchy number m of the armature winding of high frequency high voltage transformerp' and secondary windings hierarchy number ms',
It looks into upper table 1 and obtains n=4, determine k2=0.85；
Then
mp'=mp×k2=1 × 0.85=0.85；
Due to 0 ＜ mp'=0.85≤1, therefore mp'=1；
mp'=mp=1；
I.e. the hierarchy number of high frequency high voltage transformer armature winding 2 is 1 layer；
It looks into upper table 2 and obtains n=4, determine k3=0.65；
Then
ms'=ms×k3=5 × 0.65=3.25；
Due to 3 ＜ ms'=3.25≤5, i.e. c=3, d=5；And 3 ＜ ms=3.25≤3+2 × 15%, therefore ms'=c=
3；
Due to ms'=c=3<ms=5,
Therefore, the hierarchy number of high frequency high voltage transformer secondary windings 3 is 3 layers；
In conclusion
Finally the hierarchy number of determining high frequency high voltage transformer is：
Armature winding hierarchy number is 1 layer, and secondary windings hierarchy number is 3 layers；
Finally the segments of determining high frequency high voltage transformer is 4 sections.
The segmentation a8 of respective numbers and segmentation b9 is set according to segments 4 obtained above in insulation framework；Tool
Body is that 4 segmentation a8 are set between sleeve a5 and sleeve b6；In 4 segmentation b9 of external setting of sleeve c7；
1 layer of armature winding of winding, specific winding process are in insulation framework：
To be located at collinear a8 and segmentation b9 of a segmentation as a boundary group, two neighboring boundary
Magnetic core 1 is uniformly divided into 4 sections by group, is taken wherein one section as paragraph 1, is started coiling armature winding 2, paragraph 1 armature winding coiling
After the completion, the coiling of the 2nd section of armature winding is carried out to the inside of sleeve a5 across boundary group from the outside of sleeve c7, according to from
1 section, to cross-line mode during the 2nd section of transition successively coiling residue hop count, is completed up to by 4 sections of divided coilings；It is completed in coiling
Armature winding 2 on coiling insulating layer 4, during 4 coiling of insulating layer, the insulation winding structure of odd-level is：Strip insulation band longitudinal direction
Band around；Even level insulation winding structure be：Whole insulating paper transverse direction face around；Often around two layers insulation to high frequency high voltage transformer into
Vacuum paint dipping of row；After the completion of 4 winding of insulating layer on armature winding 2, a vacuum is carried out to high frequency high voltage transformer
Dipping lacquer；
Then coiling secondary windings 3 in the boundary group determined in coiling armature winding 2, secondary windings 3 are total to 3 layers of winding,
During the first layer of coiling secondary windings 3, one section opposite with 2 inlet wire of armature winding is taken to start coiling secondary windings as paragraph 1
3, after the completion of paragraph 1 secondary windings coiling, from the outside of sleeve c7 to the inside of sleeve a5 across boundary group carry out the 2nd section around
System, according to from paragraph 1 to cross-line mode during the 2nd section of transition successively coiling residue hop count, until 4 sections of divided coilings are complete
Into；According to the secondary windings of remaining 2 numbers of plies of the winding process coiling of first layer secondary windings 3 until until complete；In coiling time
During grade winding 3, the coiling insulating layer 4 between adjacent two layers secondary windings 3；During 4 coiling of insulating layer, the insulation of odd-level
Winding structure is：Strip insulation band longitudinal tape around；Even level insulation winding structure be：Whole insulating paper transverse direction face around；Often around
Two layers of insulation carries out a vacuum paint dipping to high frequency high voltage transformer；Finally coiling is exhausted on the secondary windings 3 after the completion of coiling
Edge layer 4, during 4 coiling of insulating layer, the insulation winding structure of odd-level is：Strip insulation band longitudinal tape around；Even level insulation around
Structure processed is：Whole insulating paper transverse direction face around；Vacuum paint dipping often is carried out to high frequency high voltage transformer around two layers of insulation；It will be secondary
Vacuum paint dipping processing is carried out to high frequency high voltage transformer after the completion of 4 coiling of insulating layer on grade winding 3.
Compare after electric field distribution curve and the above-mentioned segmentation of the transformer secondary output winding interlayer of the layer winding of unsegmented around
The electric field distribution curve of the secondary windings interlayer of the high frequency high voltage transformer of system, as shown in Figures 2 and 3, using point of unsegmented
The electric field ratio of the transformer secondary output winding interlayer of layer winding is using the transformer secondary output winding interlayer electric field for dividing four sections of windings
Intensity is big, it was demonstrated that the segmented winding method of high frequency high voltage transformer proposed by the present invention can be effectively reduced it is primary and secondary around
The insulation index of the interlayer of group.
Claims (9)
1. a kind of segmented high-power high-frequency high-voltage transformer, it is characterised in that：Including magnetic core (1), the external of magnetic core (1) is wrapped up
There is insulation framework, be wound with armature winding (2) and secondary windings (3), armature winding (2) and secondary in the insulation framework successively
Insulating layer (4) is wound between winding (3)；
The insulation framework includes completely identical in structure skeleton first part and skeleton second part, the skeleton first part
Structure with skeleton second part is：Including the sleeve a (5), sleeve b (6) and sleeve c (7) being coaxially socketed from inside to outside successively,
One end end face of sleeve a (5) is concordant with one end end face of one end end face of sleeve b (6), sleeve c (7) respectively, sleeve a's (5)
The other end face is concordant with the other end face of the other end face of sleeve b (6), sleeve c (7) respectively, one end of sleeve c (7)
Between end face and one end end face of sleeve b (6) be equipped with baffle, the baffle simultaneously with sleeve c (7) the end end faces, sleeve b (6)
The end end face concordantly set, and the gap between sleeve c (7) the end end faces and the end end face of sleeve b (6) is sealed
It is stifled, at least two segmentation a (8) are equipped between sleeve b (6) and sleeve a (5), each a (8) that is segmented is evenly distributed on sleeve b
(6) between sleeve a (5), the outer wall of sleeve c (7) is equipped at least two segmentation b (9), segmentation a (8) and segmentation b
(9) quantity is identical, and each a (8) that is segmented accordingly is located along the same line with a segmentation b (9), and each segmentation a (8) and
Central axis upright of each segmentation b (9) with sleeve a (5), sleeve b (6) and sleeve c (7)；
The magnetic core (1) is arranged between sleeve b (6) and sleeve c (7), the skeleton first part and skeleton second part pair
Zoarium is claimed to wrap up magnetic core (1), one end end face of magnetic core (1) is covered by the baffle in skeleton first part, magnetic core 1
The other end face by skeleton second part the baffle cover, the insulation framework is as magnetic core (1) and armature winding
(2) insulation between.
2. a kind of segmented high-power high-frequency high-voltage transformer according to claim 1, it is characterised in that：It is described it is primary around
Group (2) and secondary windings (3) are at least 1 layer, between adjacent two layers armature winding (2), between adjacent two layers secondary windings (3)
It is equipped with insulating layer (4).
3. a kind of segmentation winding method of segmented high frequency high voltage transformer, it is characterised in that：It is high-power using a kind of segmented
High frequency high voltage transformer, including magnetic core (1), the outside of magnetic core (1) is enclosed with insulation framework, coiling successively in the insulation framework
There are armature winding (2) and secondary windings (3), insulating layer (4) is wound between armature winding (2) and secondary windings (3)；
The insulation framework includes completely identical in structure skeleton first part and skeleton second part, the skeleton first part
Structure with skeleton second part is：Including the sleeve a (5), sleeve b (6) and sleeve c (7) being coaxially socketed from inside to outside successively,
One end end face, one end end face of sleeve c (7) of one end end face difference sleeve b (6) of sleeve a (5) is concordant, and sleeve a's (5) is another
One end end face is concordant with the other end face of the other end face of sleeve b (6), sleeve c (7) respectively, one end end of sleeve c (7)
Between face and one end end face of sleeve b (6) be equipped with baffle, the baffle simultaneously with sleeve c (7) the end end faces, sleeve b6 should
End end face is concordantly set, and the gap between sleeve c (7) the end end faces and the end end face of sleeve b (6) is blocked,
Be equipped at least two segmentation a (8) between sleeve b (6) and sleeve a (5), it is each be segmented an a (8) be evenly distributed on sleeve b (6) and
Between sleeve a (5), the outer wall of sleeve c (7) is equipped at least two segmentation b (9), segmentation a (8) and segmentation b (9) numbers
Measure identical, each a (8) that is segmented accordingly is located along the same line, and each segmentation a (8) and each point with a segmentation b (9)
Central axis uprights of the section b (9) with sleeve a (5), sleeve b (6) and sleeve c (7)；
The magnetic core (1) is arranged between sleeve b (6) and sleeve c (7), the skeleton first part and skeleton second part pair
Zoarium is claimed to wrap up magnetic core (1), one end end face of magnetic core (1) is covered by the baffle in skeleton first part, magnetic core 1
The other end face by skeleton second part the baffle cover, the insulation framework is as magnetic core (1) and armature winding
(2) insulation between；
The armature winding (2) and secondary windings (3) are at least 1 layer, between adjacent two layers armature winding (2), adjacent two layers
Insulating layer (4) is equipped between secondary windings (3)；
Specifically include following steps：
Step 1, the coiling parameter of high frequency high voltage transformer is determined；
Step 2, the hierarchy number m of armature winding (2) is calculated respectivelypWith the hierarchy number m of secondary windings (3)s；
Step 3, the segments n of high frequency high voltage transformer is calculated, segments n is equal to the number of segmentation a (8) and segmentation b (9)
Amount；
Step 4, the result of calculation according to obtained by step 3 recalculates the layering of armature winding (2) and secondary windings (3) respectively
Number, and it is denoted as m respectivelyp' and ms', respectively by mp' and mp、msWith ms' be compared, take smaller value as armature winding (2) and time
The hierarchy number of grade winding (3)；
Step 5, the result of calculation according to obtained by step 3 sets the segmentation a (8) of respective numbers and segmentation item in insulation framework
b(9)；
Specially：The segmentation a (8) identical with segments is set between sleeve a (5) and sleeve b (6)；Sleeve c's (7)
Outside sets the segmentation b (9) identical with segments；
Step 6, according to the armature winding of smaller armature winding hierarchy number coiling high frequency high voltage transformer taken in step 4
(2), the segmentation a (8) and segmentation b (9) set during coiling according to step 5 carries out segmentation coiling for boundary；
Step 7, according to the secondary windings of smaller secondary windings hierarchy number coiling high frequency high voltage transformer taken in step 4
(3), the segmentation a (8) and segmentation b (9) set during coiling according to step 5 carries out segmentation coiling for boundary.
4. a kind of segmentation winding method of segmented high frequency high voltage transformer according to claim 3, it is characterised in that：Step
Determining parameter is specially in rapid 1：
High frequency high voltage transformer magnetic core (1) material, armature winding (2) number of turn, number of share of stock and wire gauge；Secondary windings (3) number of turn,
Number of share of stock and wire gauge.
5. a kind of segmentation winding method of segmented high frequency high voltage transformer according to claim 3, it is characterised in that：Step
Rapid 2 detailed process is：
It is known：Armature winding (2) voltage Up, armature winding (2) interlayer maximum pressure resistance U1；
Secondary windings (3) voltage Us, secondary windings (3) interlayer maximum pressure resistance U2；
The hierarchy number m of armature winding (2) is calculated according to equation below (1)p：
Wherein, as 0 ＜ mpWhen≤1, mp=1；
As a ＜ mpDuring≤b, wherein b ＞ a >=1, b-a=2, and a, b are odd number, at this point,
As a ＜ mpDuring≤a+2 × 15%, mp=a；
As the ＜ m of a+2 × 15%pDuring≤b, mp=b；
The hierarchy number m of secondary windings (3) is calculated according to equation below (2)s：
Wherein,
As 0 ＜ msWhen≤1, ms=1；
As c ＜ msDuring≤d, wherein d ＞ c >=1, d-c=2, and c, d are odd number, at this point,
As c ＜ msDuring≤c+2 × 15%, ms=c；
As the ＜ m of c+2 × 15%sDuring≤d, ms=d.
6. a kind of segmentation winding method of segmented high frequency high voltage transformer according to claim 3, it is characterised in that：Step
Rapid 3 detailed process is：
The segments n of high frequency high voltage transformer is calculated according to equation below (3)：
N=-15.38lgk1-18.77 (3)；
Wherein,
k1=min { Cpn,Csn,Cpsn, k1For target proportion coefficient；
CpnParasitic capacitance proportionality coefficient for armature winding (2)；
CsnParasitic capacitance proportionality coefficient for secondary windings (3)；
CpsnFor the parasitic capacitance proportionality coefficient between armature winding (2) and secondary windings (3)；
Cpn、Csn、CpsnValue range exist
7. a kind of segmentation winding method of segmented high frequency high voltage transformer according to claim 3, it is characterised in that：Institute
The detailed process for stating step 4 is：
The number of stories m of armature winding in high frequency high voltage transformer is recalculated according to equation below (4)p′：
mp'=mp×k2(4)；
Wherein,
k2Segmented compensation coefficient for armature winding；
Work as mp'≥mpWhen, the hierarchy number of armature winding is mp, conversely, the hierarchy number of armature winding is mp′；
The number of stories m of secondary windings in high frequency high voltage transformer is recalculated according to equation below (5)s′：
ms'=ms×k3(5)；
Wherein, k3Segmented compensation coefficient for secondary windings；
Work as ms'≥msWhen, the hierarchy number of secondary windings is ms, conversely, the hierarchy number of secondary windings is ms′。
8. a kind of segmentation winding method of segmented high frequency high voltage transformer according to claim 3, it is characterised in that：Institute
The detailed process for stating step 6 is：
Step 6.1, armature winding (2) hierarchy number determined according to step 4, the coiling first layer armature winding in insulation framework,
Specifically winding process is：
It is two neighboring described to be located at a collinear segmentation a (8) and a segmentation b (9) as a boundary group
Magnetic core (1) is uniformly divided into n sections by boundary group, is taken wherein one section as paragraph 1, is started coiling armature winding (2), paragraph 1 is primary
After the completion of winding technique, the 2nd section of coiling is carried out to the inside of sleeve a (5) across boundary group from the outside of sleeve c (7), according to
From paragraph 1 to cross-line mode during the 2nd section of transition successively coiling residue hop count, until divided n sections coiling is completed；
Step 6.2, it is straight according to the armature winding (2) of the winding process coiling residue number of plies of first layer armature winding in step 6.1
To until complete；During coiling armature winding (2), the coiling insulating layer (4) between adjacent two layers armature winding (2)；
Step 6.3, the coiling insulating layer (4) on the armature winding (2) after the completion of step 6.2 coiling；
Step 6.4, vacuum paint dipping processing is carried out to high frequency high voltage transformer.
9. a kind of segmentation winding method of segmented high frequency high voltage transformer according to claim 8, it is characterised in that：Step
Rapid 7 detailed process is：
Step 7.1, according to step 4 determine secondary windings (3) hierarchy number, on the insulating layer (4) of armature winding (2) coiling around
First layer secondary windings (3) processed, specific winding process are：
It is two neighboring described to be located at a collinear segmentation a (8) and a segmentation b (9) as a boundary group
Magnetic core (1) is uniformly divided into n sections by boundary group, and one section opposite with armature winding (2) inlet wire is taken to start coiling time as paragraph 1
Grade winding (3), after the completion of paragraph 1 secondary windings coiling, from the outside of sleeve c (7) to the inside of sleeve a (5) across boundary group
The 2nd section of coiling is carried out, according to from paragraph 1 to cross-line mode during the 2nd section of transition successively coiling residue hop count, until will divide
The coiling of n sections complete；
Step 7.2, according to the secondary windings of the winding process coiling residue number of plies of the 1st hierarchical level winding in step 7.1 until around
Until complete；During coiling secondary windings (3), coiling insulating layer (4) between adjacent two layers secondary windings；
Step 7.3, the coiling insulating layer (4) on the secondary windings (3) after the completion of step 7.2 coiling；
Step 7.4, vacuum paint dipping processing is carried out to high frequency high voltage transformer.
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| CN111009397B (en) * | 2019-12-23 | 2021-05-25 | 上海联影医疗科技股份有限公司 | Step-up transformer, method of winding secondary winding of step-up transformer, and medium |
| CN111081452A (en) * | 2019-12-27 | 2020-04-28 | 山西风行测控股份有限公司 | High-frequency transformer and winding method thereof |
| CN114039495B (en) * | 2021-10-27 | 2024-04-09 | 中国航空制造技术研究院 | Low leakage inductance boost power transformer for electron beam high-voltage accelerating power supply |
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