CN106960721A - High voltage high frequency transformer and its winding method - Google Patents
High voltage high frequency transformer and its winding method Download PDFInfo
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- CN106960721A CN106960721A CN201610012705.4A CN201610012705A CN106960721A CN 106960721 A CN106960721 A CN 106960721A CN 201610012705 A CN201610012705 A CN 201610012705A CN 106960721 A CN106960721 A CN 106960721A
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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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
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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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
- H01F2027/2857—Coil formed from wound foil conductor
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- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention provides a kind of high voltage high frequency transformer, including skeleton, and insulating barrier, second primary side layer and external insulation layer insulating barrier, secondary layer, second former secondary between are wound on along the direction vertical with the axis of skeleton between the first inner insulating layer on skeleton, magnetic masking layer, the second inner insulating layer, the first primary side layer, the first former secondary successively.Correspondingly, a kind of winding method of high voltage high frequency transformer is also provided.High voltage high frequency transformer of the present invention has high-isolating, high frequency performance simultaneously.
Description
Technical field
The present invention relates to Technology of HVDC based Voltage Source Converter field, and in particular to a kind of high voltagehigh frequency
Transformer, and a kind of winding method of high voltage high frequency transformer.
Background technology
Flexible DC power transmission is the direct current transportation skill of new generation by core of voltage source converter
Art, it uses state-of-the-art voltage source converter and full-controlled device, is that customary DC is defeated
The replacement upgrading of power technology.Flexible DC power transmission is defeated compared to ac transmission and customary DC
Electricity, while transmission energy, moreover it is possible to neatly adjust the AC system electricity being attached thereto
Pressure, the remarkable advantage such as with controllability is preferable, the method for operation is flexible, more than applicable situation.
DC/DC converters, as the nucleus equipment of flexible direct current power transmission system, are that one kind will
Direct current elder generation's inversion (boosting or be depressured) into alternating current, then again rectifying conversion into another
Plant the DC converter of DC voltage.With Power Electronic Technique, magnetic technique it is fast
Speed development, high frequency, high power density and high conversion efficiency to DC/DC converters are carried
Higher requirement is gone out.And can be applied to the height of high-isolating (1.4kV~4kV) occasion
Frequency power transformer is one of critical component in DC/DC converters, to DC/DC converters
Performance and conversion efficiency have very important influence.
At present, the transformer of conventional insulating power supply include point switch power transformer and
The power transformer of high isolation.Wherein, the power transformer of point switch is due to isolation voltage
It is low, cause class of security protection low, it is impossible to meet the high-isolating of flexible DC power transmission
The requirement of (i.e. high insulation), although and the power transformer isolation voltage of high isolation is higher,
The requirement of the high-isolating of flexible DC power transmission can be met, but due to being only used for low frequency,
The high frequency requirements of flexible DC power transmission can not be met, and volume is big, needs injecting oil and gas,
High cost, is not easy to miniaturization.Although in addition, the transformer of conventional Switching Power Supply can
To meet the high frequency requirements of flexible DC power transmission, but its high-isolating can not be met
It is required that.
Therefore, one kind is urgently designed while having high-isolating, high frequency performance in this area
Transformer.
The content of the invention
The technical problems to be solved by the invention are for above-mentioned in the presence of prior art
Defect is there is provided a kind of while having the high voltagehigh frequency transformation of high-isolating, high frequency performance
Device and its winding method.
Solving the technical scheme that is used of present invention problem is：
The present invention provides a kind of high voltage high frequency transformer, including skeleton, along the axle with skeleton
The vertical direction of line is wound on the first inner insulating layer on skeleton, magnetic masking layer, successively
Insulating barrier, secondary layer, second between two inner insulating layers, the first primary side layer, the first former secondary
Insulating barrier, the second primary side layer and external insulation layer between former secondary.
Preferably, first primary side layer includes at least one layer of first primary winding layers and extremely
Few one layer of first primary side insulating barrier, the first primary winding layers and the first primary side insulating barrier interval
Set and correspond, the first primary winding layers positioned at most inner side are wound in second absolutely
In edge layer；
The secondary layer includes at least one layer of secondary winding layers and at least one layer of secondary insulating barrier,
Secondary winding layers and secondary insulating barrier interval setting and one-to-one corresponding, time positioned at most inner side
Level winding layers are wound between the first former secondary on insulating barrier；
Second primary side layer includes at least one layer of second primary winding layers and at least one layer of the
Two primary side insulating barriers, the second primary winding layers and the second primary side insulating barrier interval setting and one
One correspondence, the second primary winding layers positioned at most inner side, which are wound between the second former secondary, to insulate
On layer.
Preferably, the number of turn of the armature winding included in first primary side layer and described the
The number of turn of the armature winding included in two primary sides layer is identical.
Preferably, the transformer also includes：
It is arranged at the first copper foil layer between insulating barrier between the first primary side layer and the first former secondary；
And/or,
It is arranged at the second copper foil layer between insulating barrier between secondary layer and the second former secondary.
Preferably, the skeleton includes pars intermedia and respectively positioned at pars intermedia head and the tail both sides
Two ends, and skeleton is in two end bending；
The transformer also includes being wound on the first inner insulating layer and being close to skeleton two respectively
Two insulation barricades that individual tip inside is set, except the first inner insulating layer and external insulation layer it
Other outer layers are between described two insulation barricades, and external insulation layer is wrapped in transformation
Outside the inner lead of device, the second primary side layer and described two insulation barricades.
The present invention also provides a kind of winding method of high voltage high frequency transformer, the transformer
Including skeleton, the winding method comprises the following steps：
Along the direction vertical with the axis of skeleton on skeleton successively the inner insulating layer of coiling first,
Insulating barrier between magnetic masking layer, the second inner insulating layer, the first primary side layer, the first former secondary,
Insulating barrier, the second primary side layer and external insulation layer between secondary layer, the second former secondary.
Preferably, the first primary side layer includes at least one layer of first primary winding layers and right
At least one layer of first primary side insulating barrier answered, then the first primary side layer winding method be：
The primary winding layers of coiling first and the first primary side insulating barrier are spaced on second inner insulating layer；
The secondary layer includes at least one layer of secondary winding layers and corresponding at least one layer of secondary
Insulating barrier, then secondary layer winding method be：It is spaced between the first former secondary on insulating barrier
Coiling secondary winding layers and secondary insulating barrier；
Second primary side layer include at least one layer of second primary winding layers and it is corresponding at least
One layer of second primary side insulating barrier, then the second primary side layer winding method be：It is former secondary second
The primary winding layers of coiling second and the second primary side insulating barrier are spaced between side on insulating barrier.
Preferably, the number of turn of the armature winding included in first primary side layer and described the
The number of turn of the armature winding included in two primary sides layer is identical.
Preferably, the winding method also includes：
The spaced winding of insulating barrier on the first primary side layer, between the first primary side layer and the first former secondary
Make the first copper foil layer；And/or,
The bronze medal of coiling second between insulating barrier on secondary layer, between secondary layer and the second former secondary
Layers of foil.
Preferably, the skeleton includes pars intermedia and respectively positioned at pars intermedia head and the tail both sides
Two ends, and skeleton is in two end bending；
The winding method also includes：It is close on the first inner insulating layer and respectively skeleton two
Individual two insulation barricades of tip inside coiling, will except the first inner insulating layer and external insulation layer it
Other outer layers are wound between described two insulation barricades, and wrap up external insulation layer
Outside inner lead, the second primary side layer and described two insulation barricades in transformer.
Beneficial effect：
In the present invention, because magnetic masking layer is clipped between two layers of inner insulating layer, the first primary side
Provided with insulating barrier between the first former secondary, the second primary side layer and secondary layer between layer and secondary layer
Between insulated provided with insulating barrier between the second former secondary, skeleton by the first inner insulating layer
Strengthen, and outermost is enclosed with external insulation layer, transformer when solving high input voltage
The problem of insulation, loss；It is additionally, since and is provided with magnetic masking layer, so that described becomes
Depressor has high frequency performance.Therefore, transformer of the present invention have high-isolating,
High frequency performance, with stronger Practical significance.
Brief description of the drawings
Fig. 1 is the structural representation for the high voltage high frequency transformer that the embodiment of the present invention 1 is provided；
And
Fig. 2 is the winding method for the high voltage high frequency transformer that the embodiment of the present invention 2 is provided
Flow chart.
In figure：100- skeletons；101st, 102- ends；103- pars intermedias；200-
One inner insulating layer；300- insulation barricades；400- magnetic masking layers；The interior insulations of 500- second
Layer；The primary sides of 600- first layer；The primary winding layers of 601- first；The primary sides of 602- first are exhausted
Edge layer；The copper foil layers of 700- first；Insulating barrier between the former secondary of 800- first；900- secondary
Layer；901- secondary winding layers；902- secondary insulating barriers；The copper foil layers of 1000- second；
Insulating barrier between the former secondary of 1100- second；The primary sides of 1200- second layer；At the beginning of 1201- second
Level winding layers；1202- the second primary side insulating barriers；1300- external insulation layers.
Embodiment
To make those skilled in the art more fully understand technical scheme, tie below
Drawings and Examples are closed to be described in further detail the present invention.
Embodiment 1：
The magnetic core that the present embodiment is provided in a kind of high voltage high frequency transformer, the transformer is adopted
It is made of high-frequency magnetic material, for example, being made of Ferrite Material；The transformer
In wire be high voltagehigh frequency cable, such as three layer insulation wire or enamel-covered wire.Such as Fig. 1 institutes
Show, the high voltage high frequency transformer includes：Skeleton 100, and along the axis with skeleton 100
Vertical direction is wound on the first inner insulating layer 200 on skeleton 100, magnetic masking layer successively
400th, insulating barrier between the second inner insulating layer 500, the former secondary of the first primary side layer 600, first
800th, insulating barrier 1100, the second primary side layer 1200 between the former secondary of secondary layer 900, second
With external insulation layer 1300.
Wherein, skeleton 100 includes pars intermedia 103 and is located at pars intermedia head and the tail both sides respectively
Two ends 101 and 102, and skeleton bending at two end 101 and 102,
Above-mentioned first inner insulating layer 200, magnetic masking layer 400, the second inner insulating layer 500, first
Insulating barrier 800, the former secondary of secondary layer 900, second between the former secondary of primary side layer 600, first
Between insulating barrier 1100, the second primary side layer 1200 and external insulation layer 1300, and hereinafter
The first copper foil layer 700 and the second copper foil layer 1000 mentioned are wound on pars intermedia 103,
And be located between end 101 and 102 inner side, and the inner side table of end 101 and 102
Face is oppositely arranged, outer surface is disposed opposite to each other.Above-mentioned each Rotating fields with adjacent layer
Close structure is fitted, and pars intermedia 103 of first inner insulating layer 200 also with skeleton is close
Laminating.
In the present embodiment, it (is specially skeleton that the first inner insulating layer 200, which is used for skeleton,
Pars intermedia 103) insulation processing is carried out, so as to carry out insulating strength to skeleton；In first absolutely
Magnetic masking layer 400 is clipped in the middle by the inner insulating layer 500 of edge layer 200 and second, is used as change
The innermost layer of depressor, to carry out insulation processing to magnetic masking layer, meeting its High-Voltage Insulation will
Ask；Magnetic masking layer can be entwined using existing magnetic screen adhesive tape, and magnetic screen adhesive tape
Cut-off frequency be preferably transformer working frequency, in the present embodiment, magnetic screen adhesive tape
Cut-off frequency be preferably 15kHz.It is additionally, since and is provided with magnetic masking layer, realizes
Magnetic insulation so that the transformer has high frequency performance, specifically, when transformer work
In high frequency occasion, magnetic masking layer therein can avoid leakage field to the dissection of wire,
The loss of wire is reduced, and the cut-off frequency of magnetic masking layer is the working frequency of transformer,
So as to filter the influence except leakage field more than switching frequency to wire.
First primary side layer 600 and the second primary side layer 1200 include armature winding, and the two
In the number of turn sum of armature winding that includes be equal to the armature winding that the transformer should be included
Total number of turns；Secondary layer 900 includes secondary windings.Insulating barrier 800 between first former secondary
The class of insulation (voltage class) need to the first primary side layer 600 armature winding and secondary
The secondary windings of layer 900 is corresponding, and insulation of insulating barrier 1100 etc. between the second former secondary
Level (voltage class) need to be with secondary layer 900 secondary windings and second primary side layer 1200
Armature winding is corresponding.
Specifically, the first primary side layer 600 includes at least one layer of first primary winding layers 601
With at least one layer of first primary side insulating barrier 602, the first primary winding layers 601 and the first primary side
The interval setting of insulating barrier 602 and one-to-one corresponding, the first primary winding layers positioned at most inner side
601 are wound on the second inner insulating layer 500.The present embodiment is with the first primary winding layers 601
It is respectively adopted with the first primary side insulating barrier 602 exemplified by two layers, as shown in figure 1, first layer
First primary winding layers 601 are wound on the second inner insulating layer 500, and first layer first is former
Edge insulating layer 602 is wound on the first primary winding layers of first layer 601, the second layer first
Primary winding layers 601 are wound on the first primary side of first layer insulating barrier 602, the second layer
One primary side insulating barrier 602 is wound on the first primary winding layers of the second layer 601.Wherein,
The class of insulation (voltage class) of first primary side insulating barrier 602 need to be with the first armature winding
Layer 601 is corresponding；The number of plies of first primary winding layers 601 should by the first primary side layer 600
Comprising the number of turn of armature winding determine, and the first primary side layer 600 should be included it is primary around
The number of turn sum for the armature winding that the number of turn of group should be included with the second primary side layer 1200 is equal to institute
State the total number of turns for the armature winding that transformer should be included, if be paved with one layer first it is primary around
Find that the number of turn not enough, just re-lays one layer of first primary winding layers 601, directly after group layer 601
Untill the number of turn meets requirement, the number of turn can be by those skilled in the art according to actual conditions
Setting, certainly, often lays one layer of first primary winding layers 601, correspondingly needs thereon
One layer of first primary side insulating barrier 602 of coiling.
Secondary layer 900 includes at least one layer of secondary winding layers 901 and at least one layer of secondary is exhausted
Edge layer 902, secondary winding layers 901 and the interval setting of secondary insulating barrier 902 and one-to-one corresponding,
Secondary winding layers 901 positioned at most inner side are wound between the first former secondary on insulating barrier 800.
The present embodiment so that secondary winding layers 901 and secondary insulating barrier 902 are respectively adopted two layers as an example,
As shown in figure 1, first layer secondary winding layers 901 are wound on insulating barrier between the first former secondary
On 800, first layer secondary insulating barrier 902 is wound in first layer secondary winding layers 901,
Second layer secondary winding layers 901 are wound on first layer secondary insulating barrier 902, the second layer
Secondary insulating barrier 902 is wound in second layer secondary winding layers 901.Wherein, secondary is exhausted
The class of insulation (voltage class) of edge layer 902 need to be corresponding with secondary winding layers 901；
The number of turn for the secondary windings that the number of plies of secondary winding layers 901 should be included by secondary layer 900 is determined
It is fixed, and the number of turn for the secondary windings that secondary layer 900 should be included should be wrapped equal to the transformer
The total number of turns of the secondary windings contained, if finding circle after being paved with a hierarchical level winding layers 901
Number is inadequate, just re-lays a hierarchical level winding layers 901, untill the number of turn meets requirement,
The number of turn can be set by those skilled in the art according to actual conditions, certainly, often lay one
Hierarchical level winding layers 901, correspondingly need in one layer of secondary insulating barrier 902 of coiling thereon.
Second primary side layer 1200 is including at least one layer of second primary winding layers 1201 and at least
One layer of second primary side insulating barrier 1202, the second primary winding layers 1201 and the insulation of the second primary side
1202 interval setting of layer and one-to-one corresponding, the second primary winding layers 1201 positioned at most inner side
It is wound between the second former secondary on insulating barrier 1100.The present embodiment is with the second primary winding layers
1201 and second primary side insulating barrier 1202 be respectively adopted exemplified by two layers, as shown in figure 1,
One layer of second primary winding layers 1201 is wound between the second former secondary on insulating barrier 1100,
The second primary side of first layer insulating barrier 1202 is wound on the second primary winding layers of first layer 1201
On, the second primary winding layers of the second layer 1201 are wound on first layer the second primary side insulating barrier
On 1202, the second primary side of second layer insulating barrier 1202 is wound on the armature winding of the second layer second
On layer 1201.Wherein, the class of insulation (voltage class) of the second primary side insulating barrier 1202
Need to be corresponding with the second primary winding layers 1201；The number of plies of second primary winding layers 1201
The number of turn for the armature winding that should be included by the second primary side layer 1200 is determined, and the first primary side layer
The numbers of turn of 600 armature windings that should be included and the second primary side layer 1200 should include it is primary around
The number of turn sum of group is equal to the total number of turns for the armature winding that the transformer should be included, if
It is paved with after one layer of second primary winding layers 1201 and finds the number of turn not enough, just re-lays one layer the
Two primary winding layers 1201, untill the number of turn meets requirement, the number of turn can be by this area
Technical staff sets according to actual conditions, certainly, often lays one layer of second primary winding layers
1201, correspondingly need in one layer of second primary side insulating barrier 1202 of coiling thereon.
In the present embodiment, one layer of first primary winding layers, the second primary winding layers are often set
Or secondary winding layers, a layer insulating is just set thereon respectively, to cause the first primary side
Layer, the second primary side layer and secondary layer are sandwich, and the first primary side layer with it is secondary
Insulating barrier between the first former secondary is provided between boundary layer, in the second primary side layer and secondary layer
Between be provided with the second former secondary insulating barrier.Due to first/second primary side layer, to be operated in high pressure defeated
Enter occasion, therefore each interlayer of first/second primary winding layers needs to set insulation material layer with full
The certain insulating requirements of foot；Moreover, above-mentioned first primary side layer, the second primary side layer and secondary
Layer uses sandwich, can improve transformer magnetic coupling effect, it is effective solve by
The problem of the output voltage that magnetic coupling is not caused closely is relatively low；Simultaneously as the first/the
Need to meet the insulating requirements of 2 times of input voltage between two primary sides layer and secondary layer, therefore need
Will the first primary side layer and secondary layer between, the second primary side layer secondary layer between be respectively provided with
Insulation material layer.
Preferably, the number of turn of the armature winding included in the first primary side layer 600 and the second original
The number of turn of the armature winding included in boundary layer 1200 is identical.In other words, the first primary side layer 600
In the number of turn of armature winding that includes account for total circle of the armature winding that the transformer should be included
Several half, and the number of turn of the armature winding included in the second primary side layer 1200 accounts for the change
The total number of turns for the armature winding that depressor should be included second half, using this by armature winding
It is split into two halves, and the transformer that secondary windings is clipped in sandwich winding formation therein can have
The leakage inductance of effect ground reduction armature winding, so as to reduce the influence to circuit.
As shown in figure 1, the transformer also includes：It is arranged at the first primary side 600 He of layer
The first copper foil layer 700 between first former secondary between insulating barrier 800, and it is arranged at secondary
The second copper foil layer 1000 between the former secondary of layer 900 and second between insulating barrier 1100.Moreover,
First copper foil layer 700 and the second copper foil layer 1000 include 1~2 layer of Copper Foil.Due in magnetic
Copper foil layer is additionally arranged on the basis of screen layer, the high frequency of the transformer is further improved
Performance.Being additionally, since copper has preferable heat-conducting effect, by setting up copper foil layer, also
Loss caused by the copper loss of different interlayers can be directed to outside, so as to reduce transformer
Line bag temperature rise.In addition, first/second copper foil layer respectively with first/second primary winding layers
Reference point connects, and sets up copper foil layer between first/second primary side layer and secondary layer,
The reference point of primary winding layers can be introduced inside transformer, it is achieved thereby that primary, secondary
The isolation of level high-frequency electric field, thus primary electric field is significantly reduced to secondary winding layers
Influence.
In addition, the transformer also includes being wound on the first inner insulating layer 200 and difference
It is close to two insulation barricades 300 that the inner side of two ends of skeleton 101 and 102 is set, and institute
State two insulation barricades to be oppositely arranged, except the first inner insulating layer 200 and external insulation layer 1300
Outside other layers between two insulation barricades 300, external insulation layer 1300 is wrapped up
Inner lead, the second primary side insulating barrier 1202 of the second primary side layer 1200 in transformer
Outside the top of two insulation barricades 300, to prevent that inner materials are exposed.Wherein,
The thickness of each insulation barricade 300 need to be adjusted according to transformer insulated compressive resistance,
In the present embodiment, the thickness of each insulation barricade 300 is preferably 5~8mm, further excellent
Elect 6mm as.In the present embodiment, due to being provided with insulation barricade, therefore increase at the beginning of first
Level winding layers and the second primary winding layers, the first primary winding layers and secondary winding layers, the
Creep age distance between two primary winding layers and secondary winding layers, so that between can guarantee that winding
Requirement to creep age distance.
Further, the transformer also includes impregnating varnish layer (not shown in figure 1), its
It is wrapped in outside whole transformer, with the noise for solving the vibrations of transformer and bringing, and
Improve dielectric strength.
High voltage high frequency transformer described in the present embodiment is because with said structure, solving high pressure
During input transformer insulation, loss the problem of, in other words, transformation described in the present embodiment
Device uses high input voltage, constant low-loss high frequency transformer device structure.
Embodiment 2：
The present embodiment provides a kind of winding method of high voltage high frequency transformer, the transformer
Including skeleton, and skeleton includes pars intermedia and is located at two of pars intermedia head and the tail both sides respectively
End, and skeleton, in two end bending, the inner surface of two ends is relative to be set
Put, outer surface is disposed opposite to each other.Magnetic core in the transformer uses high-frequency magnetic material
It is made, for example, being made of Ferrite Material；Wire in the transformer is high pressure
High frequency cable, such as three layer insulation wire or enamel-covered wire.
The winding method comprises the following steps：
Along the direction vertical with the axis of skeleton on skeleton successively the inner insulating layer of coiling first,
Insulating barrier between magnetic masking layer, the second inner insulating layer, the first primary side layer, the first former secondary,
Insulating barrier, the second primary side layer and external insulation layer between secondary layer, the second former secondary.Certainly,
Above-mentioned Rotating fields are wound on the pars intermedia of skeleton, and positioned at the inner side of two ends it
Between.
Specifically, as shown in Fig. 2 the winding method comprises the following steps：
S101. the closely inner insulating layer of coiling first on skeleton pars intermedia.
Wherein, the first inner insulating layer is used to carry out insulation processing to the pars intermedia of skeleton, from
And insulating strength is carried out to skeleton.
S102. the closely coiling magnetic masking layer on the first inner insulating layer.
Wherein, magnetic masking layer can be entwined using existing magnetic screen adhesive tape, and magnetic cup
During the cut-off frequency for covering adhesive tape is preferably the working frequency of transformer, the present embodiment, magnetic cup
Cover the cut-off frequency preferably 15kHz of adhesive tape.It is additionally, since and is provided with magnetic masking layer,
Realize magnetic insulation so that the transformer has high frequency performance, specifically, work as transformation
When device is operated in high frequency occasion, magnetic masking layer therein can avoid cutting of the leakage field to wire
Effect, reduces the loss of wire, and the cut-off frequency of magnetic masking layer is the work of transformer
Frequency, so as to filter the influence except leakage field more than switching frequency to wire.
S103. the closely inner insulating layer of coiling second on magnetic masking layer.
It can be seen that, magnetic masking layer is clipped in the middle by the first inner insulating layer and the second inner insulating layer,
As the innermost layer of transformer, to carry out insulation processing to magnetic masking layer, its high pressure is met
Insulating requirements；
S104. on the second inner insulating layer closely the primary side of coiling first layer.
Wherein, the first primary side layer include at least one layer of first primary winding layers and it is corresponding extremely
Few one layer of first primary side insulating barrier, i.e. the first primary winding layers and the first primary side insulating barrier
Quantity is equal and corresponds, then step S104 is specially：Between on the second inner insulating layer
Every the primary winding layers of coiling first and the first primary side insulating barrier, and each first primary side insulate
Layer is wound on corresponding first primary winding layers, i.e., often lay one layer of first primary
Winding layers, correspondingly need in one layer of first primary side insulating barrier of coiling thereon.
The class of insulation (voltage class) of first primary side insulating barrier need to be with the first armature winding
Layer is corresponding；And first primary winding layers the number of plies by the primary that should include of the first primary side layer
The number of turn of winding is determined, and the number of turn and second for the armature winding that the first primary side layer should be included
The number of turn sum for the armature winding that primary side layer should be included is first equal to what the transformer should be included
The total number of turns of level winding, the number of turn is found not enough if be paved with after one layer of first primary winding layers,
One layer of first primary winding layers is just re-layed, untill the number of turn meets requirement, the number of turn
It can be set by those skilled in the art according to actual conditions.
S105. the closely insulating barrier between the former secondary of coiling first on the first primary side layer.
Specifically, on the first primary side insulating barrier of the first primary side layer closely coiling first
Insulating barrier between former secondary.
Preferably, step A is also included between step S104 and step S105：
The closely copper foil layer of coiling first on one primary side layer；Then step S105 is：In the first Copper Foil
Insulating barrier between the close former secondary of coiling first on layer.
First copper foil layer may include 1~2 layer of Copper Foil.Due to increasing on the basis of magnetic masking layer
If copper foil layer, the high frequency performance of the transformer is further improved.It is additionally, since
Copper has preferable heat-conducting effect, by setting up copper foil layer, can also be by different interlayers
Loss is directed to outside caused by copper loss, so as to reduce transformer wire bag temperature rise.In addition,
Reference point of the first/second copper foil layer respectively with first/second primary winding layers connects, and
Copper foil layer is set up between first/second primary side layer and secondary layer, can be by primary winding layers
Reference point introduces inside transformer, it is achieved thereby that the primary, isolation of secondary high frequency electric field,
Thus significantly reduce influence of the primary electric field to secondary winding layers.
S106. the closely coiling secondary layer on insulating barrier between the first former secondary.
Wherein, secondary layer includes at least one layer of secondary winding layers and corresponding at least one layer of secondary
Edge insulating layer, i.e. secondary winding layers and the quantity of secondary insulating barrier it is equal and correspond,
Then step S106 is specially：Between the first former secondary coiling secondary windings is spaced on insulating barrier
Layer and secondary insulating barrier, and each secondary insulating barrier is wound in corresponding secondary winding layers
On, i.e., a hierarchical level winding layers are often laid, are correspondingly needed in one layer of pair of coiling thereon
Edge insulating layer.
The class of insulation (voltage class) of secondary insulating barrier need to be corresponding with secondary winding layers；
The number of turn of secondary windings that the number of plies of secondary winding layers should be included by secondary layer determines, and secondary
The number of turn for the secondary windings that boundary layer should be included is equal to the secondary windings that the transformer should be included
Total number of turns, if as soon as be paved with after hierarchical level winding layers find the number of turn not enough, re-lay
One hierarchical level winding layers, untill the number of turn meets requirement, the number of turn can be by this area skill
Art personnel set according to actual conditions.
S107. the closely insulating barrier between the former secondary of coiling second on secondary layer.
Specifically, on the secondary insulating barrier of secondary layer closely between the former secondary of coiling second
Insulating barrier.
Preferably, step B is also included between step S106 and step S107：In pair
The closely copper foil layer of coiling second on boundary layer；Then step S107 is：On the second copper foil layer
Insulating barrier between the close former secondary of coiling second.
Second copper foil layer may include 1~2 layer of Copper Foil.
S108. the closely primary side of coiling second layer on insulating barrier between the second former secondary.
Wherein, the second primary side layer include at least one layer of second primary winding layers and it is corresponding extremely
Few one layer of second primary side insulating barrier, i.e. the second primary winding layers and the second primary side insulating barrier
Quantity is equal and corresponds, then step S104 is specially：Between on the second inner insulating layer
Every the primary winding layers of coiling second and the second primary side insulating barrier, and each second primary side insulate
Layer is wound on corresponding second primary winding layers, i.e., often lay one layer of second primary
Winding layers, correspondingly need in one layer of second primary side insulating barrier of coiling thereon.
The class of insulation (voltage class) of second primary side insulating barrier need to be with the second armature winding
Layer is corresponding；And second primary winding layers the number of plies by the primary that should include of the second primary side layer
The number of turn of winding is determined, and the number of turn and second for the armature winding that the first primary side layer should be included
The number of turn sum for the armature winding that primary side layer should be included is first equal to what the transformer should be included
The total number of turns of level winding, the number of turn is found not enough if be paved with after one layer of second primary winding layers,
One layer of second primary winding layers is just re-layed, untill the number of turn meets requirement, the number of turn
It can be set by those skilled in the art according to actual conditions.
In the present embodiment, per one layer of first primary winding layers of coiling, the second primary winding layers
Or secondary winding layers, just respectively in the layer insulating of coiling thereon one, to cause the first primary side
Layer, the second primary side layer and secondary layer are sandwich, and the first primary side layer with it is secondary
Insulating barrier between the former secondary of coiling first between boundary layer, in the second primary side layer and secondary layer
Between the former secondary insulating barrier of coiling second.Due to first/second primary side layer, to be operated in high pressure defeated
Enter occasion, therefore each interlayer of first/second primary winding layers needs coiling insulation material layer with full
The certain insulating requirements of foot；Moreover, above-mentioned first primary side layer, the second primary side layer and secondary
Layer uses sandwich, can improve transformer magnetic coupling effect, it is effective solve by
The problem of the output voltage that magnetic coupling is not caused closely is relatively low；Simultaneously as the first/the
Need to meet the insulating requirements of 2 times of input voltage between two primary sides layer and secondary layer, therefore need
Will be between the first primary side layer and secondary layer, the second primary side layer coiling between secondary layer
Insulation material layer.
Preferably, the number of turn of the armature winding included in the first primary side layer and the second primary side layer
In the number of turn of armature winding that includes it is identical.In other words, what is included in the first primary side layer is first
The number of turn of level winding accounts for the half of the total number of turns for the armature winding that the transformer should be included,
And the number of turn of armature winding included in the second primary side layer accounts for that the transformer should include just
The total number of turns of level winding second half, armature winding is split into two halves using this, and secondary
Level winding be clipped in sandwich winding therein formation transformer can be effectively reduced it is primary around
The leakage inductance of group, so as to reduce the influence to circuit.
In above-mentioned steps S104, S106 and S108, coiling armature winding or it is secondary around
During group, the problems such as coil knots should be avoided the occurrence of, and after coiling terminates, coil surface should
It is smooth, be brought into close contact without obvious flaw, and with adjacent layer；The primary side of coiling first, second
When insulating barrier and secondary insulating barrier, also answer that holding surface is smooth, corrugationless.
S109. the closely coiling external insulation layer on the second primary side layer.
Specifically, on the second primary side insulating barrier of the second primary side layer closely outside coiling absolutely
Edge layer.
Alternatively, S110 (not shown in Fig. 2) are adjusted in the inductance value for completing transformer
After whole other techniques of grade, dipping lacquer processing is integrally carried out to transformer, to solve transformer
Vibrations and the noise that brings, and improve dielectric strength.The step be located at step S109 it
Afterwards.
In addition, between above-mentioned steps S101 and step S102, may also include step C：
It is close on the first inner insulating layer and respectively two, the skeleton insulation stop of tip inside coiling two
Wall, and it is oppositely arranged two insulation barricades.And, in subsequent step S103 to step
In rapid S109, each layer (not including the first inner insulating layer and external insulation layer) is wound on
Between two insulation barricades, in step S109, external insulation layer need to be made to be wrapped in transformer
Inner lead, the second primary side layer and two insulation barricades top outside.
In the present embodiment, the thickness of each insulation barricade need to be according to transformer insulated resistance to pressure
Degree is adjusted.Specifically, the thickness of each insulation barricade is preferably 5~8mm, enters one
Step is preferably 6mm.In the present embodiment, due to being provided with insulation barricade, therefore is increased
One primary winding layers and the second primary winding layers, the first primary winding layers and secondary winding layers,
Creep age distance between second primary winding layers and secondary winding layers, so as to can guarantee that winding
Between requirement to creep age distance.
The transformer that winding method described in the present embodiment is made is because with said structure, solving
During high input voltage transformer insulation, loss the problem of, in other words, the present embodiment institute
State winding method and a kind of high input voltage, constant low-loss high frequency transformer device structure has been made.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present
And the illustrative embodiments used, but the invention is not limited in this.For ability
For those of ordinary skill in domain, the situation of spirit and substance of the present invention is not being departed from
Under, various changes and modifications can be made therein, and these variations and modifications are also considered as the present invention's
Protection domain.
Claims (10)
1. a kind of high voltage high frequency transformer, including skeleton, it is characterised in that the transformation
Device also includes：It is wound on first on skeleton successively along the direction vertical with the axis of skeleton
Inner insulating layer, magnetic masking layer, the second inner insulating layer, the first primary side layer, the first former secondary
Between insulating barrier, the second primary side layer and external insulation between insulating barrier, secondary layer, the second former secondary
Layer.
2. transformer according to claim 1, it is characterised in that
First primary side layer includes at least one layer of first primary winding layers and at least one layer of the
One primary side insulating barrier, the first primary winding layers and the first primary side insulating barrier interval setting and one
One correspondence, the first primary winding layers positioned at most inner side are wound on the second inner insulating layer；
The secondary layer includes at least one layer of secondary winding layers and at least one layer of secondary insulating barrier,
Secondary winding layers and secondary insulating barrier interval setting and one-to-one corresponding, time positioned at most inner side
Level winding layers are wound between the first former secondary on insulating barrier；
Second primary side layer includes at least one layer of second primary winding layers and at least one layer of the
Two primary side insulating barriers, the second primary winding layers and the second primary side insulating barrier interval setting and one
One correspondence, the second primary winding layers positioned at most inner side, which are wound between the second former secondary, to insulate
On layer.
3. transformer according to claim 2, it is characterised in that described first is former
Included in the number of turn of the armature winding included in boundary layer and second primary side layer it is primary around
The number of turn of group is identical.
4. transformer according to claim 1, it is characterised in that the transformer
Also include：
It is arranged at the first copper foil layer between insulating barrier between the first primary side layer and the first former secondary；
And/or,
It is arranged at the second copper foil layer between insulating barrier between secondary layer and the second former secondary.
5. the transformer according to any one of claim 1-4, it is characterised in that
The skeleton includes pars intermedia and is located at two ends of pars intermedia head and the tail both sides respectively, and
Skeleton is in two end bending；
The transformer also includes being wound on the first inner insulating layer and being close to skeleton two respectively
Two insulation barricades that individual tip inside is set, except the first inner insulating layer and external insulation layer it
Other outer layers are between described two insulation barricades, and external insulation layer is wrapped in transformation
Outside the inner lead of device, the second primary side layer and described two insulation barricades.
6. a kind of winding method of high voltage high frequency transformer, the transformer includes skeleton,
Characterized in that, the winding method comprises the following steps：
Along the direction vertical with the axis of skeleton on skeleton successively the inner insulating layer of coiling first,
Insulating barrier between magnetic masking layer, the second inner insulating layer, the first primary side layer, the first former secondary,
Insulating barrier, the second primary side layer and external insulation layer between secondary layer, the second former secondary.
7. winding method according to claim 6, it is characterised in that
First primary side layer include at least one layer of first primary winding layers and it is corresponding at least
One layer of first primary side insulating barrier, then the first primary side layer winding method be：In second absolutely
The primary winding layers of coiling first and the first primary side insulating barrier are spaced in edge layer；
The secondary layer includes at least one layer of secondary winding layers and corresponding at least one layer of secondary
Insulating barrier, then secondary layer winding method be：It is spaced between the first former secondary on insulating barrier
Coiling secondary winding layers and secondary insulating barrier；
Second primary side layer include at least one layer of second primary winding layers and it is corresponding at least
One layer of second primary side insulating barrier, then the second primary side layer winding method be：It is former secondary second
The primary winding layers of coiling second and the second primary side insulating barrier are spaced between side on insulating barrier.
8. winding method according to claim 7, it is characterised in that described first
The number of turn of the armature winding included in primary side layer and the primary included in second primary side layer
The number of turn of winding is identical.
9. winding method according to claim 6, it is characterised in that the coiling
Method also includes：
The spaced winding of insulating barrier on the first primary side layer, between the first primary side layer and the first former secondary
Make the first copper foil layer；And/or,
The bronze medal of coiling second between insulating barrier on secondary layer, between secondary layer and the second former secondary
Layers of foil.
10. the winding method according to any one of claim 6-9, its feature exists
In, the skeleton includes pars intermedia and is located at two ends of pars intermedia head and the tail both sides respectively,
And skeleton is in two end bending；
The winding method also includes：It is close on the first inner insulating layer and respectively skeleton two
Individual two insulation barricades of tip inside coiling, will except the first inner insulating layer and external insulation layer it
Other outer layers are wound between described two insulation barricades, and wrap up external insulation layer
Outside inner lead, the second primary side layer and described two insulation barricades in transformer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012705.4A CN106960721A (en) | 2016-01-08 | 2016-01-08 | High voltage high frequency transformer and its winding method |
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|---|---|---|---|
| CN201610012705.4A CN106960721A (en) | 2016-01-08 | 2016-01-08 | High voltage high frequency transformer and its winding method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546011A (en) * | 2017-09-20 | 2018-01-05 | 惠州格利尔科技有限公司 | A kind of adjustment leakage inductance winding method of high-frequency resonant transformer |
| CN107833735A (en) * | 2017-10-31 | 2018-03-23 | 赛诺微医疗科技（浙江）有限公司 | Resonance transformer and use its electric knife equipment |
| CN110491645A (en) * | 2019-07-01 | 2019-11-22 | 江苏华程光电科技有限公司 | The core transformers of high power flattening |
| CN114121442A (en) * | 2021-11-05 | 2022-03-01 | 西安交通大学 | Low-alternating-current copper loss planar magnetic part winding for power electronic converter |
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2016
- 2016-01-08 CN CN201610012705.4A patent/CN106960721A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546011A (en) * | 2017-09-20 | 2018-01-05 | 惠州格利尔科技有限公司 | A kind of adjustment leakage inductance winding method of high-frequency resonant transformer |
| CN107833735A (en) * | 2017-10-31 | 2018-03-23 | 赛诺微医疗科技（浙江）有限公司 | Resonance transformer and use its electric knife equipment |
| CN110491645A (en) * | 2019-07-01 | 2019-11-22 | 江苏华程光电科技有限公司 | The core transformers of high power flattening |
| CN114121442A (en) * | 2021-11-05 | 2022-03-01 | 西安交通大学 | Low-alternating-current copper loss planar magnetic part winding for power electronic converter |
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Application publication date: 20170718 |