CN107342153A - Folding stereo dual openings iron core dry-type transformer - Google Patents
Folding stereo dual openings iron core dry-type transformer Download PDFInfo
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- CN107342153A CN107342153A CN201710013180.0A CN201710013180A CN107342153A CN 107342153 A CN107342153 A CN 107342153A CN 201710013180 A CN201710013180 A CN 201710013180A CN 107342153 A CN107342153 A CN 107342153A
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- single frame
- outer layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
- H01F27/33—Arrangements for noise damping
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of folding stereo dual openings iron core dry-type transformer, including the iron core group being put together by three single frame iron cores, single frame iron core includes internal layer material strip group, middle material band group and outer layer material band group, the opening for forming the individual pen material strip frame of internal layer material strip group is symmetricly set on the upper end of single frame core mandrel, the opening for forming the individual pen material strip frame of middle material band group is symmetricly set on the bending inclined-plane between the upper end of single frame core mandrel and single frame core mandrel and single frame iron on the yoke, the opening for forming the individual pen material strip frame of outer layer material band group is symmetricly set on the upper end of single frame core mandrel, on bending inclined-plane between single frame core mandrel and single frame iron on the yoke and single frame iron on the yoke both ends, distance >=the 5mm at the bending angle of opening and its nearest neighbours on each individual pen material strip frame.High mechanical strength of the present invention, anti-sudden short circuit ability are strong, inserting efficiency high.
Description
Technical field
The present invention relates to transformer technology field, more particularly to folding stereo dual openings iron core dry-type transformer.
Background technology
Dry-type transformer is one kind in transformer species, is cooled down by cross-ventilation.In recent years, as China matches somebody with somebody
The constantly increase and country of power grid construction input is to the large-scale promotion of high-efficiency and energy-saving type transformer, stereo-triangular wound iron core of remaining silent
Because its three iron circuits are full symmetric, energy-saving effect is significantly widely used dry-type transformer, however, because remaining silent triangle
The iron core of sections core transformer is remains silent, thus the suit coil complex process during transformer is manufactured, low production efficiency,
Quality is difficult to control, and product repairing is difficult, has had a strong impact on its development.At present, a kind of removable folding stereo opening
The appearance of triangle iron core transformer, solve above mentioned problem, but still suffer from certain deficiency, such as：Open butt joint position can only
Concentrated setting is easily caused to loosen, shifts, deforms, the seam being buried in end turn gives back to slotting in the upper end of core mandrel
Iron core brings very big inconvenience, not only have impact on iron core performance, also reduces transformer quality.
Therefore, how to existing dry-type transformer carry out structure on improvement, with improve its mechanical strength, it is anti-burst it is short
Road ability and inserting efficiency, turn into people's urgent problem to be solved.
The content of the invention
In consideration of it, it is an object of the invention to provide a kind of folding stereo dual openings iron core dry-type transformer, to solve
Existing dry-type transformer iron core bad mechanical strength, anti-sudden short circuit ability, the inserting problem such as efficiency is low.
To solve the above problems, technical scheme provided by the invention is：Folding stereo dual openings iron core dry-type transformer,
Including the iron core group being put together by the single frame iron core of three independences and size structure all same with central angle 120o angle, institute
Stating single frame iron core includes single frame core mandrel, single frame iron on the yoke, yoke and bending inclined-plane under single frame iron core, the single frame iron core by
Closed assembly forms successively for internal layer material strip group, middle material band group and outer layer material band group, middle material band group include middle level the first material strip group and
Middle level the second material strip group being stacked on the outside of the first material strip of middle level group, outer layer material band group include the first material strip of outer layer group, folded
Outer layer the second material strip group on the outside of the first material strip of outer layer group and it is stacked in outer on the outside of the second material strip of outer layer group
The 3rd material strip group of layer, wherein, internal layer material strip group, middle level the first material strip group and the first material strip of outer layer group are symmetrical by multiple openings respectively
The individual pen material strip frame closed assembly for being arranged on the upper end of single frame core mandrel forms, middle level the second material strip group and outer layer the second material strip component
Not by the individual pen material strip frame on multiple bending inclined-planes for being open and being symmetricly set between single frame core mandrel and single frame iron on the yoke
Closed assembly is formed, and the material strip group of outer layer the 3rd is symmetricly set on the individual pen material strip frame closed assembly at the both ends of single frame iron on the yoke by multiple openings
Form, wherein, with a distance from the opening and bending angle disposed thereon and nearest from the opening on each individual pen material strip frame
>=5mm, the opening formed on the individual pen material strip frame of the material strip group of outer layer the 3rd are respectively positioned on along transformer core stem and upwardly extended
Cylindrical space in, wherein, the transformer core stem is put together by single frame core mandrel, the transformer core stem
Outer sheath is equipped with low-pressure casting coil, and low-pressure casting coil outer sheath is equipped with high pressure molded coil, the low-pressure casting coil with
Stay is provided between high pressure molded coil, three single frame iron on the yoke are fixed by upper clamping piece, and yoke leads under three single frame iron cores
Cross lower clamping piece to fix, upper clamping piece and lower clamping piece are fixed by lateral bracing strut, and lower clamping piece bottom is fixedly connected on channel-section steel, the channel-section steel
On be additionally provided with cooling blower on the outside of high pressure molded coil.
It is preferred that the low-pressure casting coil and high pressure molded coil are epoxy resin casting coil.
Further preferably, the middle material band group of composition single frame iron core and/or outer layer material band group are multigroup, and each group middle material
Band group closed assembly successively, each group outer layer material band group closed assembly successively.
Further preferably, form and correspondingly set on the individual pen material strip frame of internal layer material strip group, middle material band group and outer layer material band group
It is equipped with 8 135 degree of bending angle.
Further preferably, form and correspondingly set on the individual pen material strip frame of internal layer material strip group, middle material band group and outer layer material band group
It is equipped with 12 150 degree of bending angle.
Further preferably, middle level the second material strip group and the second material strip of outer layer group include multiple openings and are symmetricly set on the respectively
Individual pen material strip frame and multiple closed assemblies on one bending inclined-plane are symmetricly set on the individual pen material strip frame on the first bending inclined-plane in opening
Outside and opening are symmetricly set on the individual pen material strip frame on the second bending inclined-plane, wherein, the first bending inclined-plane is located at single frame iron core
Between stem and single frame iron on the yoke and one end is connected with single frame core mandrel, the both ends on the second bending inclined-plane respectively with the first folding
Curving face connects with single frame iron on the yoke.
Further preferably, the opening pair of the individual pen material strip frame of internal layer material strip group, middle material band group and outer layer material band group is formed
Position is connect by staged interlayer Heterogeneous Permutation.
Further preferably, the section of transformer core stem is in Long Circle or class inpolygon or stepped ramp type or rectangle
Or similar round.
Folding stereo dual openings iron core dry-type transformer provided by the invention has the beneficial effect that：
1st, form the single frame iron core of the iron core group in the folding stereo dual openings iron core dry-type transformer by internal layer material strip group, in
Layered material band group and outer layer material band group composition, and form the individual pen material strip frame of internal layer material strip group, middle material band group and outer layer material band group
On opening with the individual pen material strip frame and with a distance from the bending angle nearest from the opening >=5mm so that in individual pen
The opening of material strip frame is respectively formed length >=5mm limiting section, and the limiting section can play the individual pen material strip frame being pointed on the inside of it
Upper and lower or/and left and right directions position-limiting action, specifically：After the completion of iron core inserting, the outer layer the of outer layer material band group is formed
Three material strip groups can prevent the play of outer layer the second material strip group on its inside, and outer layer the second material strip group can prevent from being located at it
The play of outer layer the first material strip group of inner side, reach the effect of locking in outer layer material band group, form the middle level of middle material band group
Second material strip group can prevent the play of middle level the first material strip group on its inside, realize locking in middle material band group
Purpose, meanwhile, outer layer material band group can also prevent the play of middle material band group on its inside, middle material as an entirety
The play of internal layer material strip group on its inside can also be prevented with group, realizes outer layer material band group, middle material band group and internal layer
The purpose locked between material strip group, so as to solve only transformer core stem upper end open iron core easily in powerful electricity
Produced in the presence of magnetic field longitudinal direction loosen, displacement, deformation, the problems such as anti-sudden short circuit ability, meanwhile, between material strip group and material strip
Locking action in group substantially increases the mechanical strength of iron core, improves the folding stereo dual openings iron core dry-type transformer
Total quality；
2nd, the single frame iron core that the folding stereo dual openings iron core dry-type transformer uses is by opening increase at the one of existing iron core
Opening to three, and increased opening portion is outside coil, hence it is evident that it is visible, the inserting of iron core is facilitated, improves iron
Core inserts efficiency, reduces artificial production cost, and the iron core after increase opening cuts down vibrations by the way that aperture position is disperseed, right
Noise makes moderate progress, and further increases the anti-sudden short circuit ability of iron core；
3rd, the opening formed on the individual pen material strip frame of the material strip group of outer layer the 3rd is respectively positioned on what is upwardly extended along transformer core stem
In cylindrical space, the suit of coil is facilitated so that coil is sleeved on the process on the outside of transformer core stem from top to bottom
In will not be stuck.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is further detailed explanation：
Fig. 1 is the folding stereo dual openings iron core dry-type transformer structural representation of the present invention；
Fig. 2 is the structural representation of the embodiment of iron core group one；
Fig. 3 is the structural representation of another embodiment of iron core group；
Fig. 4 is the structural representation of the embodiment of single frame iron core one；
Fig. 5 is the structural representation of another embodiment of single frame iron core；
Fig. 6 is the structural representation of the embodiment of internal layer material strip group one；
Fig. 7 is the structural representation of another embodiment of internal layer material strip group；
Fig. 8 is the structural representation of the embodiment of middle material band group one；
Fig. 9 is the structural representation of another embodiment of middle material band group；
Figure 10 is the structural representation of the embodiment of outer layer material band group one；
Figure 11 is the structural representation of another embodiment of outer layer material band group；
Figure 12 is the sectional view in the transformer core stem of Long Circle；
Figure 13 is the sectional view in the transformer core stem of class inpolygon；
Figure 14 is the sectional view in the transformer core stem of step；
Figure 15 is the sectional view of rectangular transformer core stem；
Figure 16 is the sectional view in the transformer core stem of similar round.
Embodiment
The present invention is further explained below in conjunction with specific embodiment, but the not limitation present invention.
As shown in Figure 1 to Figure 3, folding stereo dual openings iron core dry-type transformer provided by the invention is included by three solely
The iron core group that vertical and size structure all same single frame iron core 1 is put together with central angle 120o angle, such as Fig. 4, Fig. 5 institute
Showing, the single frame iron core 1 includes yoke 13 and bending inclined-plane 14 under single frame core mandrel 11, single frame iron on the yoke 12, single frame iron core,
By internal layer material strip group 3, middle material band group 4 and outer layer material band group 5, closed assembly forms the single frame iron core 1 successively, such as Fig. 8, Fig. 9 institute
Show, middle material band group 4 includes middle level the first material strip group 41 and is stacked in the middle level second in the outside of the first material strip of middle level group 41
Material strip group 42, as shown in Figure 10, Figure 11, outer layer material band group 5 include the first material strip of outer layer group 51, are stacked in the material of outer layer first
The second material strip of outer layer group 52 with the outside of group 51 and the material strip group of outer layer the 3rd for being stacked in the outside of the second material strip of outer layer group 52
53, wherein, internal layer material strip group 3（Shown in Fig. 6 and Fig. 7）, middle level the first material strip group 41（Shown in Fig. 8 and Fig. 9）With the material of outer layer first
Band group 51（Shown in Figure 10 and Figure 11）Respectively by the individual pen material strip of multiple upper ends for being open and being symmetricly set on single frame core mandrel 11
Frame closed assembly forms, middle level the second material strip group 42（Shown in Fig. 8 and Fig. 9）With the second material strip of outer layer group 52（Shown in Figure 10 and Figure 11）Point
Not by the individual pen on multiple bending inclined-planes 14 for being open and being symmetricly set between single frame core mandrel 11 and single frame iron on the yoke 12
Material strip frame closed assembly forms, the material strip group 53 of outer layer the 3rd（Shown in Figure 10 and Figure 11）It is symmetricly set on by multiple openings on single frame iron core
The individual pen material strip frame closed assembly at the both ends of yoke 12 forms, wherein, opening on each individual pen material strip frame with it is disposed thereon and from
The distance at the nearest bending angle of the opening >=5mm, the opening formed on the individual pen material strip frame of the material strip group 53 of outer layer the 3rd is equal
In the cylindrical space upwardly extended along transformer core stem 21, as shown in Figure 4, Figure 5, the opening on individual pen material strip frame is equal
In the range of where A, B, C region, wherein, region A represent in single frame core mandrel can open area, the region is located at
The upper end of single frame core mandrel and distance >=5mm away from bending angle, region B represent on bending inclined-plane can open area, the area
Distance >=mm of the domain away from bending angle, region C single frame iron on the yoke can open area, the region is located at along transformer core stem
In the cylindrical space that upwardly extends and distance >=5mm away from bending angle, wherein, the transformer core stem 21 is by single frame iron core
Stem 11 is put together, wherein, Fig. 2 to each class rectangle frame shown in Figure 11 represents one group of individual pen material strip frame, and simultaneously
It is not only to represent an individual pen material strip frame, as shown in figure 1, the outer sheath of transformer core stem 21 is equipped with low-pressure casting coil
（Not shown in figure）, low-pressure casting coil outer sheath is equipped with high pressure molded coil 22, and the low-pressure casting coil is poured into a mould with high pressure
Stay is provided between coil 22（Not shown in figure）, three single frame iron on the yoke 12 are fixed by upper clamping piece 6, three single frame iron
Yoke 13 is fixed by lower clamping piece 7 under core, and upper clamping piece 6 and lower clamping piece 7 are fixed by lateral bracing strut 8, and the bottom of lower clamping piece 7 is fixedly connected on
On channel-section steel 9, the cooling blower 10 positioned at the outside of high pressure molded coil 22 is additionally provided with the channel-section steel 9, wherein, the low pressure is poured
It is preferably epoxy resin casting coil that coil, which is noted, with high pressure molded coil 22.
The single frame iron core of iron core group in the folding stereo dual openings iron core dry-type transformer is by internal layer material strip group, middle level
Material strip group and outer layer material band group composition, and form on the individual pen material strip frame of internal layer material strip group, middle material band group and outer layer material band group
Opening with the individual pen material strip frame and with a distance from the bending angle nearest from the opening >=5mm so that in individual pen material
Opening with frame is respectively formed length >=5mm limiting section, and the limiting section can play the individual pen material strip frame that is pointed on the inside of it
Upper and lower or/and left and right directions position-limiting action, specifically：After the completion of iron core inserting, the outer layer the 3rd of outer layer material band group is formed
Material strip group can prevent the play of outer layer the second material strip group on its inside, and outer layer the second material strip group can prevent position in the inner
The play of outer layer the first material strip group of side, reach the effect of locking in outer layer material band group, form the middle level the of middle material band group
Two material strip groups can prevent the play of middle level the first material strip group on its inside, realize the mesh of the locking in middle material band group
, meanwhile, outer layer material band group can also prevent the play of middle material band group on its inside, middle material band as an entirety
Group can also prevent the play of internal layer material strip group on its inside, realize outer layer material band group, middle material band group and interior layered material
With the purpose locked between group, so as to solve only transformer core stem upper end open iron core easily in powerful electromagnetism
Produced in the presence of longitudinal direction loosen, displacement, deformation, the problems such as anti-sudden short circuit ability, meanwhile, between material strip group and material strip group
Interior locking action substantially increases the mechanical strength of iron core, improves the folding stereo dual openings iron core dry-type transformer
Total quality in addition, opening at the one of existing iron core is increased to opening at three by the single frame iron core that the dry-type transformer uses, and
Increased opening portion is outside coil, hence it is evident that and it is visible, the inserting of iron core is facilitated, improves iron core inserting efficiency, drop
Low artificial production cost, the iron core after increase opening cut down vibrations, noise are made moderate progress by the way that aperture position is disperseed,
The anti-sudden short circuit ability of iron core is further increased, meanwhile, form the opening on the individual pen material strip frame of the material strip group of outer layer the 3rd
It is respectively positioned in the cylindrical space upwardly extended along transformer core stem, facilitates the suit of coil so that coil is by up to
Under be sleeved on the outside of transformer core stem during will not be stuck.
With being continuously increased for individual pen material strip frame number, for preferably realize between material strip group and in material strip group locking effect
Fruit, as the improvement of technical scheme, the middle material band group 4 and/or outer layer material band group 5 of composition single frame iron core 1 are multigroup, and each group
The closed assembly successively of middle material band group 4, the closed assembly successively of each group outer layer material band group 5.
As shown in Fig. 2, Fig. 4, Fig. 6, Fig. 8 and Figure 10, composition internal layer material strip group 3, middle material band group 4 and outer layer material band group 5
Individual pen material strip frame on be correspondingly arranged on 8 135 degree of bending angle, i.e.,：Four bending inclined-planes are set on each individual pen material strip frame.
As shown in Fig. 3, Fig. 5, Fig. 7, Fig. 9 and Figure 11, composition internal layer material strip group 3, middle material band group 4 and outer layer material band group 5
Individual pen material strip frame on be correspondingly arranged on 12 150 degree of bending angle, i.e.,：Set eight bendings oblique on each individual pen material strip frame
Face.
When setting eight bending inclined-planes on the individual pen material strip frame for forming transformer core, as shown in figs, middle level
Second material strip group 42 and the second material strip of outer layer group 52 include the individual pen that multiple openings are symmetricly set on the first bending inclined-plane respectively
Material strip frame and multiple closed assemblies are symmetrical arranged in the individual pen material strip outer frame side that opening is symmetricly set on the first bending inclined-plane and opening
Individual pen material strip frame on the second bending inclined-plane, wherein, the first bending inclined-plane is located on single frame core mandrel 11 and single frame iron core
Between yoke 12 and one end is connected with single frame core mandrel 11, the both ends on the second bending inclined-plane respectively with the first bending inclined-plane and single frame
Iron on the yoke 12 connects.
As the improvement of technical scheme, as shown in Fig. 6 to Figure 11, composition internal layer material strip group 3, middle material band group 4 and outer layer
Staged interlayer Heterogeneous Permutation is pressed in the open butt joint position of the individual pen material strip frame of material strip group 5, so as to make the iron core due to opening
Iron loss minimizes caused by structure, is potentiated and enhanced the mechanical strength of iron core.
As the improvement of technical scheme, the section of transformer core stem 21 is in Long Circle（As shown in figure 12）Or in class circle
Connect polygon（As shown in figure 13）Or stepped ramp type（As shown in figure 14）Or rectangle（As shown in figure 15）Or similar round（Such as Figure 16 institutes
Show）.
The embodiment of the present invention is write according to progressive mode, highlights each embodiment
Difference, its similar portion can be with cross-reference.
Embodiments of the present invention are elaborated above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Various changes can be made.
Claims (8)
1. folding stereo dual openings iron core dry-type transformer, including the single frame iron core by three independences and size structure all same
（1）The iron core group being put together with central angle 120o angle, the single frame iron core（1）Including single frame core mandrel（11）, it is single
Frame iron on the yoke（12）, yoke under single frame iron core（13）With bending inclined-plane（14）, it is characterised in that the single frame iron core（1）By interior
Layered material band group（3）, middle material band group（4）With outer layer material band group（5）Closed assembly forms successively, middle material band group（4）Including middle level
One material strip group（41）Be stacked in the first material strip of middle level group（41）Middle level the second material strip group in outside（42）, outer layer material band group
（5）Including outer layer the first material strip group（51）, be stacked in the first material strip of outer layer group（51）Outer layer the second material strip group in outside
（52）Be stacked in the second material strip of outer layer group（52）The material strip group of outer layer the 3rd in outside（53）, wherein, internal layer material strip group
（3）, middle level the first material strip group（41）With outer layer the first material strip group（51）Respectively single frame iron core core is symmetricly set on by multiple openings
Post（11）The individual pen material strip frame closed assembly of upper end form, middle level the second material strip group（42）With outer layer the second material strip group（52）Respectively by
Multiple openings are symmetricly set on single frame core mandrel（11）With single frame iron on the yoke（12）Between bending inclined-plane（14）On list
Circle material strip frame closed assembly forms, the material strip group of outer layer the 3rd（53）Single frame iron on the yoke is symmetricly set on by multiple openings（12）Both ends
Individual pen material strip frame closed assembly form, wherein, opening on each individual pen material strip frame with it is disposed thereon and from the opening most
The distance near bending angle >=5mm, form the material strip group of outer layer the 3rd（53）Individual pen material strip frame on opening be respectively positioned on along become
Depressor core mandrel（21）In the cylindrical space upwardly extended, wherein, the transformer core stem（21）By single frame iron core core
Post（11）It is put together, the transformer core stem（21）Outer sheath is equipped with low-pressure casting coil, low-pressure casting coil outside
It is set with high pressure molded coil（22）, the low-pressure casting coil and high pressure molded coil（22）Between be provided with stay, three
Single frame iron on the yoke（12）Pass through upper clamping piece（6）It is fixed, yoke under three single frame iron cores（13）Pass through lower clamping piece（7）It is fixed, upper folder
Part（6）And lower clamping piece（7）Pass through lateral bracing strut（8）It is fixed, lower clamping piece（7）Bottom is fixedly connected on channel-section steel（9）On, the channel-section steel
（9）On be additionally provided with positioned at high pressure molded coil（22）The cooling blower in outside（10）.
2. according to the folding stereo dual openings iron core dry-type transformer described in claim 1, it is characterised in that：The low pressure is poured
Note coil and high pressure molded coil（22）It is epoxy resin casting coil.
3. according to the folding stereo dual openings iron core dry-type transformer described in claim 1, it is characterised in that：Form single frame iron
Core（1）Middle material band group（4）And/or outer layer material band group（5）To be multigroup, and each group middle material band group（4）Closed assembly successively, each group
Outer layer material band group（5）Closed assembly successively.
4. according to the folding stereo dual openings iron core dry-type transformer described in claim 1, it is characterised in that：Layered material in composition
Band group（3）, middle material band group（4）With outer layer material band group（5）Individual pen material strip frame on be correspondingly arranged on 8 135 degree of bending angle.
5. according to the folding stereo dual openings iron core dry-type transformer described in claim 1, it is characterised in that：Layered material in composition
Band group（3）, middle material band group（4）With outer layer material band group（5）Individual pen material strip frame on be correspondingly arranged on 12 150 degree of bending
Angle.
6. according to the folding stereo dual openings iron core dry-type transformer described in claim 5, it is characterised in that：The material of middle level second
Band group（42）With outer layer the second material strip group（52）Include the individual pen material that multiple openings are symmetricly set on the first bending inclined-plane respectively
It is symmetricly set on frame and multiple closed assemblies in the individual pen material strip outer frame side that opening is symmetricly set on the first bending inclined-plane and opening
Individual pen material strip frame on second bending inclined-plane, wherein, the first bending inclined-plane is located at single frame core mandrel（11）With on single frame iron core
Yoke（12）Between and one end and single frame core mandrel（11）Connection, the both ends on the second bending inclined-plane respectively with the first bending inclined-plane and
Single frame iron on the yoke（12）Connection.
7. according to the folding stereo dual openings iron core dry-type transformer described in claim 1, it is characterised in that：Layered material in composition
Band group（3）, middle material band group（4）With outer layer material band group（5）The open butt joint position of individual pen material strip frame press staged interlayer
Heterogeneous Permutation.
8. according to the folding stereo dual openings iron core dry-type transformer any one of claim 1 to 7, its feature exists
In：Transformer core stem（21）Section be in Long Circle or class inpolygon or stepped ramp type or rectangle or similar round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/072073 WO2017129073A1 (en) | 2016-01-29 | 2017-01-22 | Dry-type transformer having foldable three-dimensional double-opening iron core |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062749 | 2016-01-29 | ||
| CN2016100627498 | 2016-01-29 | ||
| CN201610723866 | 2016-08-25 | ||
| CN2016107238664 | 2016-08-25 |
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| Publication Number | Publication Date |
|---|---|
| CN107342153A true CN107342153A (en) | 2017-11-10 |
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ID=60223184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710013180.0A Pending CN107342153A (en) | 2016-01-29 | 2017-01-09 | Folding stereo dual openings iron core dry-type transformer |
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| CN (1) | CN107342153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987090A (en) * | 2018-07-23 | 2018-12-11 | 沈阳嘉恒机电设备有限公司 | A kind of collapsible iron core automatic material arranging machine |
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