CN106710830A - Foldable planar three-phase open transformer iron core - Google Patents
Foldable planar three-phase open transformer iron core Download PDFInfo
- Publication number
- CN106710830A CN106710830A CN201710013178.3A CN201710013178A CN106710830A CN 106710830 A CN106710830 A CN 106710830A CN 201710013178 A CN201710013178 A CN 201710013178A CN 106710830 A CN106710830 A CN 106710830A
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- China
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- material strip
- group
- iron core
- outer layer
- single frame
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Classifications
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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
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses foldable planar three-phase open transformer iron core. The foldable planar three-phase open transformer iron core comprises two inner-ring single-frame iron cores and an outer-ring single-frame iron core, wherein each of each inner-ring single-frame iron core and the outer-ring single-frame iron core is formed by sequentially stacking an inner-layer material band group, a middle-layer material band group and an outer-layer material band group, the openings of a single-ring material band frame forming the inner-layer material band group are symmetrically formed in the upper end of a single-frame iron core column, the openings of a single-ring material band frame forming the middle-layer material band group are symmetrically formed in the upper end of the single-frame iron core column and a bent slope between the single-frame iron core column and a single-frame iron core upper yoke, and the openings of a single-ring material band frame are symmetrically formed in the upper end of the single-frame iron core column, the bent slope between the single-frame iron core column and the single-frame iron core upper yoke and two ends of the single-frame iron core upper yoke, and the distance between each opening of each single-ring material band frame and a bent angle closet to the opening is not smaller than 5mm. The foldable planar three-phase open transformer iron core is high in mechanical strength, high in sudden short-circuit resistance and high in plug-in mounting efficiency.
Description
Technical field
The present invention relates to transformer technology field, more particularly to foldable plane three-phase opening transformer core.
Background technology
Transformer core is the important component for constituting transformer, and the species of transformer can be divided into single-phase transformer and three phase transformations
Depressor.In recent years, the popularization with country to energy-conserving product, a kind of energy-saving effect is notable and removable foldable plane three-phase
Opening transformer core is widely used, and the foldable plane three-phase opening transformer core has lightweight, small volume, zero load
Be lost that small, manufacturing process is simple, noise is low, good energy-conserving effect, radiating and overload capacity by force, compact conformation, mechanically and electrically property
Can be superior the features such as, although in this way, but the foldable plane three-phase opening transformer core still suffers from deficiency, such as：Open seam
Position can only concentrated setting in the upper end of iron core stem, easily cause to loosen, shift and deform, anti-sudden short circuit ability, no
Convenient inserting upper yoke, inserting efficiency is low.
Therefore, the improvement in structure how is carried out to existing flat surface transformer iron core, to improve its mechanical strength, resist and dash forward
Hair short-circuit capacity and inserting efficiency, as people's problem demanding prompt solution.
The content of the invention
In consideration of it, it is an object of the invention to provide a kind of foldable plane three-phase opening transformer core, it is existing to solve
There are flat surface transformer iron core bad mechanical strength, anti-sudden short circuit ability, the inserting low problem of efficiency.
To solve the above problems, the technical scheme that the present invention is provided is：A kind of foldable plane three-phase opening transformer fe
Core, the outer ring single frame iron core on the outside of the inner ring single frame iron core is stacked in by two inner ring single frame iron cores and one and is constituted, wherein,
Inner ring single frame iron core and outer ring single frame iron core include yoke and bending under single frame iron core stem, single frame iron core upper yoke, single frame iron core
Inclined-plane, inner ring single frame iron core and outer ring single frame iron core are by internal layer material strip group, middle material band group and outer layer material strip group successively closed assembly
Form, middle material band group includes middle level the first material strip group and the material strip of middle level second being stacked on the outside of the first material strip group of the middle level
Group, outer layer material strip group includes the first material strip of outer layer group, outer layer the second material strip group being stacked on the outside of the outer layer the first material strip group
With the material strip group of outer layer the 3rd being stacked on the outside of the outer layer the second material strip group, wherein, internal layer material strip group, middle level the first material strip group
With the first material strip of outer layer group respectively by the individual pen material strip frame closed assembly of multiple upper ends for being open and being symmetricly set on single frame iron core stem
Into middle level the second material strip group and the second material strip of outer layer group are symmetricly set on single frame iron core stem and single frame iron by multiple opening respectively
Individual pen material strip frame closed assembly on bending inclined-plane between core upper yoke is formed, and the material strip group of outer layer the 3rd is symmetricly set on by multiple opening
The individual pen material strip frame closed assembly at the two ends of single frame iron core upper yoke is formed, wherein, opening on each individual pen material strip frame be located at
>=5mm thereon and with a distance from the nearest bending angle in the opening, constitutes on the individual pen material strip frame of the material strip group of outer layer the 3rd
Opening is respectively positioned in the column type space upwardly extended along transformer core stem, wherein, the transformer core stem is by inner ring
The single frame iron core stem of single frame iron core and outer ring single frame iron core is put together.
It is preferred that, the middle material band group and/or outer layer material strip group of inner ring single frame iron core are constituted for multigroup, and each group middle material band
Group closed assembly successively, each group outer layer material strip group closed assembly successively；Constitute the middle material band group and/or outer layer material strip group of outer ring single frame iron core
For multigroup, and each group middle material band group closed assembly successively, each group outer layer material strip group closed assembly successively.
Further preferably, correspondence sets on the individual pen material strip frame of composition internal layer material strip group, middle material band group and outer layer material strip group
It is equipped with 8 135 degree of bending angle.
Further preferably, correspondence sets on the individual pen material strip frame of composition internal layer material strip group, middle material band group and outer layer material strip 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 that multiple openings 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 the individual pen material strip frame being symmetricly set on the second bending inclined-plane that is open, wherein, the first bending inclined-plane is located at single frame iron core
Between stem and single frame iron core upper yoke and one end is connected with single frame iron core stem, the two ends on the second bending inclined-plane respectively with the first folding
Curving face and single frame iron core upper yoke are connected.
Further preferably, the opening of the individual pen material strip frame of composition internal layer material strip group, middle material band group and outer layer material strip group is right
Position is connect by staged interlayer Heterogeneous Permutation.
Further preferably, the section of transformer core stem is in Long Circle or class inpolygon or step or rectangle
Or similar round.
The foldable plane three-phase opening transformer core that the present invention is provided has the beneficial effect that：
1st, because constituting the opening on the individual pen material strip frame of internal layer material strip group, middle material band group and outer layer material strip group and being located at described
On individual pen material strip frame and with a distance from the nearest bending angle in the opening >=5mm so that the equal shape at the opening of individual pen material strip frame
Into the limiting section of length >=5mm, the limiting section can play the upper and lower or/and left and right directions of the individual pen material strip frame being pointed on the inside of it
Position-limiting action, specifically：After the completion of iron core inserting, the material strip group of outer layer the 3rd for constituting outer layer material strip group is prevented from being located at
The play of outer layer the second material strip group on the inside of it, outer layer the second material strip group is prevented from outer layer the first material strip group on its inside
Play, reached the effect of locking in outer layer material strip group, middle level the second material strip group for constituting middle material band group is prevented from position
The play of middle level the first material strip group of side, realizes the purpose of the locking in middle material band group in the inner, meanwhile, outer layer material strip group
The play of middle material band group on its inside can also be prevented as an entirety, middle material band group can also prevent from being located at it
The play of the internal layer material strip group of inner side, realizes the purpose locked between outer layer material strip group, middle material band group and internal layer material strip group,
So as to solve only stem upper end open iron core easily in the presence of powerful electromagnetic field produce longitudinal direction loosen, displacement,
The problems such as deformation, anti-sudden short circuit ability, meanwhile, the locking action between material strip group and in material strip group substantially increases iron core
Mechanical strength；
2nd, opening at the one of existing transformer core is increased to opening at three by the transformer core, and increased opening portion is equal
Outside coil, hence it is evident that visible, the inserting of iron core is facilitated, improve iron core inserting efficiency, reduce artificial production cost, increased
Increase the iron core after mouth to disperse by by aperture position, cut down vibrations, noise is made moderate progress, further increase iron core
Anti- sudden short circuit ability；
3rd, the opening on the individual pen material strip frame of the composition material strip group of outer layer the 3rd is respectively positioned on what is upwardly extended along transformer core stem
In column type 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 implementation method the present invention is further detailed explanation：
Fig. 1 is the structural representation of the embodiment of foldable plane three-phase opening transformer core one of the present invention；
Fig. 2 is the structural representation of another embodiment of foldable plane three-phase opening transformer core of the present invention；
Fig. 3 is the structural representation of the embodiment of inner ring single frame iron core one；
Fig. 4 is the structural representation of inner ring another embodiment of single frame iron core；
Fig. 5 is the structural representation of the embodiment of internal layer material strip group one；
Fig. 6 is the structural representation of internal layer another embodiment of material strip group；
Fig. 7 is the structural representation of the embodiment of middle material band group one；
Fig. 8 is the structural representation of middle material another embodiment of band group；
Fig. 9 is the structural representation of the embodiment of outer layer material strip group one；
Figure 10 is the structural representation of outer layer another embodiment of material strip group；
Figure 11 is the sectional view in the transformer core stem of Long Circle；
Figure 12 is the sectional view in the transformer core stem of class inpolygon；
Figure 13 is the sectional view in the transformer core stem of step；
Figure 14 is the sectional view of rectangular transformer core stem；
Figure 15 is the sectional view in the transformer core stem of similar round.
Specific embodiment
The present invention is further explained below in conjunction with specific embodiment, but does not limit to the present invention.
As shown in Figure 1 and Figure 2, the invention provides a kind of foldable plane three-phase opening transformer core, by two inner rings
The outer ring single frame iron core 2 that single frame iron core 1 and one are stacked in the outside of the inner ring single frame iron core 1 is constituted, wherein, inner ring single frame iron
Core 1 and outer ring single frame iron core 2 are oblique including yoke 13 under single frame iron core stem 11, single frame iron core upper yoke 12, single frame iron core and bending
Face 14, inner ring single frame iron core 1 and outer ring single frame iron core 2 by internal layer material strip group 3, middle material band group 4 and outer layer material strip group 5 successively
Closed assembly is formed, and Fig. 3 and Fig. 4 is the structural representation of inner ring single frame iron core, as shown in Figure 7 and Figure 8, during middle material band group 4 includes
The material strip group 41 of layer first and middle level the second material strip group 42 in the outside of the middle level the first material strip group 41 is stacked in, such as Fig. 9 and Figure 10
Shown, outer layer material strip group 5 includes the first material strip of outer layer group 51, is stacked in the outer layer second in the outside of the first material strip of outer layer group 51
Material strip group 52 and the material strip group 53 of outer layer the 3rd being stacked on the outside of the second material strip of outer layer group 52, wherein, internal layer material strip group 3
（Shown in Fig. 5 and Fig. 6）, middle level the first material strip group 41（Shown in Fig. 7 and Fig. 8）With the first material strip of outer layer group 51（Fig. 9 and Figure 10 institutes
Show）The individual pen material strip frame closed assembly of the upper end for being symmetricly set on single frame iron core stem 11 by multiple opening respectively is formed, middle level second
Material strip group 42（Shown in Fig. 7 and Fig. 8）With the second material strip of outer layer group 52（Shown in Fig. 9 and Figure 10）It is symmetrical arranged by multiple opening respectively
Individual pen material strip frame closed assembly on bending inclined-plane 14 between single frame iron core stem 11 and single frame iron core upper yoke 12 is formed, outer layer
Three material strip groups 53（Shown in Fig. 9 and Figure 10）The individual pen material strip frame at the two ends of single frame iron core upper yoke 12 is symmetricly set on by multiple opening
Closed assembly is formed, wherein, opening and bending angle disposed thereon and nearest from the opening on each individual pen material strip frame
Apart from >=5mm, as depicted in figs. 1 and 2, constitute the opening on the individual pen material strip frame of the material strip group 53 of outer layer the 3rd and be respectively positioned on along change
In the column type space that depressor iron core stem 6 is upwardly extended, as shown in Figure 1 and Figure 2, the opening on individual pen material strip frame is respectively positioned on A, B, C
In the range of where region, wherein, region A represent on single frame iron core stem can open area, the region is located at single frame iron core
The upper end of stem and away from the distance >=5mm at bending angle, region B represent on bending inclined-plane can open area, the region is away from bending
Distance >=the 5mm at angle, region C single frame iron core upper yokes can open area, the region be located at prolongs upwards along transformer core stem
In the cylindrical space stretched and away from the distance >=5mm at bending angle, wherein, the transformer core stem 6 is by the He of inner ring single frame iron core 1
The single frame iron core stem 11 of outer ring single frame iron core 2 is put together, wherein, each the class rectangle frame shown in Fig. 1 to Figure 10 is equal
One group of individual pen material strip frame is represented, and is not only to represent an individual pen material strip frame.
The foldable plane three-phase opening transformer core, because composition internal layer material strip group, middle material band group and outer layered material
Opening on individual pen material strip frame with group is open with a distance from nearest bending angle with the individual pen material strip frame and from described
>=5mm so that length >=in the limiting section of 5mm is respectively formed at the opening of individual pen material strip frame, the limiting section can be played and is pointed to
Upper and lower or/and left and right directions the position-limiting action of the individual pen material strip frame on the inside of it, specifically：After the completion of iron core inserting, composition
The material strip group of outer layer the 3rd of outer layer material strip group is prevented from the play of outer layer the second material strip group on its inside, the material of outer layer second
The play of outer layer the first material strip group on its inside is prevented from group, the purpose of locking in outer layer material strip group, group is realized
Middle level the second material strip group into middle material band group is prevented from the play of middle level the first material strip group on its inside, in realizing
The purpose of the locking in layered material band group, meanwhile, outer layer material strip group can also prevent middle level on its inside as an entirety
The play of material strip group, middle material band group can also prevent the play of internal layer material strip group on its inside, realize outer layer material strip
The purpose locked between group, middle material band group and internal layer material strip group, it is easy only in the iron core of stem upper end open so as to solve
The problems such as longitudinal direction loosening, displacement, deformation, anti-sudden short circuit ability are produced in the presence of powerful electromagnetic field, meanwhile, as above
Described, the locking action between material strip group and in material strip group substantially increases the mechanical strength of iron core, in addition, the transformer core will
Opening increases to opening at three at the one of existing transformer core, and increased opening portion is outside coil, hence it is evident that can
See, facilitate the inserting of iron core, improve iron core inserting efficiency, reduce artificial production cost, increase the iron core behind opening and pass through
Aperture position is disperseed, vibrations are cut down, noise is made moderate progress, further increase the anti-sudden short circuit ability of iron core, together
When, the opening constituted on the individual pen material strip frame of the material strip group of outer layer the 3rd is respectively positioned on the column type upwardly extended along transformer core stem
In space, facilitate the suit of coil so that coil be sleeved on from top to bottom on the outside of transformer core stem during not
Can be stuck.
It is between preferably realizing material strip group and the effect of the interior locking of material strip group with being continuously increased for individual pen material strip frame number
Really, as the improvement of technical scheme, the middle material band group 4 and/or outer layer material strip group 5 of composition inner ring single frame iron core 1 are multigroup, and
The closed assembly successively of each group middle material band group 4, the closed assembly successively of each group outer layer material strip group 5；The middle material band group of composition outer ring single frame iron core 2
4 and/or outer layer material strip group 5 for multigroup, and the closed assembly successively of each group middle material band group 4, the closed assembly successively of each group outer layer material strip group 5.
As shown in Fig. 1, Fig. 3, Fig. 5, Fig. 7 and Fig. 9, composition internal layer material strip group 3, middle material band group 4 and outer layer material strip group 5
8 135 degree of bending angle is correspondingly arranged on individual pen material strip frame, i.e.,：Four bending inclined-planes are set on each individual pen material strip frame.
As shown in Fig. 2, Fig. 4, Fig. 6, Fig. 8 and Figure 10, internal layer material strip group 3, middle material band group 4 and outer layer material strip group 5 are constituted
Individual pen material strip frame on be correspondingly arranged on 12 150 degree of bending angle, i.e.,：It is oblique that eight bendings are set on each individual pen material strip frame
Face.
When eight bending inclined-planes are set on the individual pen material strip frame for constituting 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
The individual pen material strip outer frame side and opening that material strip frame and multiple closed assemblies are symmetricly set on the first bending inclined-plane in opening are symmetrical arranged
Individual pen material strip frame on the second bending inclined-plane, wherein, the first bending inclined-plane is located on single frame iron core stem 11 and single frame iron core
Between yoke 12 and one end is connected with single frame iron core stem 11, the two ends on the second bending inclined-plane respectively with the first bending inclined-plane and single frame
Iron core upper yoke 12 is connected.
As the improvement of technical scheme, as shown in Fig. 5 to Figure 10, internal layer material strip group 3, middle material band group 4 and outer layer are constituted
The open butt joint position of the individual pen material strip frame of material strip group 5 press staged interlayer Heterogeneous Permutation so that, make the transformer core by
Minimized in the iron loss produced by hatch frame, be potentiated and enhanced the mechanical strength of transformer core.
Used as the improvement of technical scheme, the section of transformer core stem 6 is in Long Circle（As shown in figure 11）Or in class circle
Connect polygon（As shown in figure 12）Or stepped ramp type（As shown in figure 13）Or rectangle（As shown in figure 14）Or similar round（Such as Figure 15 institutes
Show）.
Specific embodiment of the 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, in the ken that those of ordinary skill in the art possess, can also be on the premise of present inventive concept not be departed from
Various changes can be made.
Claims (7)
1. foldable plane three-phase opening transformer core, by two inner ring single frame iron cores（1）The inner ring is stacked in one
Single frame iron core（1）The outer ring single frame iron core in outside（2）Composition, wherein, inner ring single frame iron core（1）With outer ring single frame iron core（2）
Including single frame iron core stem（11）, single frame iron core upper yoke（12）, yoke under single frame iron core（13）With bending inclined-plane（14）, its feature exists
In inner ring single frame iron core（1）With outer ring single frame iron core（2）By internal layer material strip group（3）, middle material band group（4）With outer layer material strip
Group（5）Closed assembly is formed successively, middle material band group（4）Including middle level the first material strip group（41）Be stacked in the material strip of the middle level first
Group（41）Middle level the second material strip group in outside（42）, outer layer material strip group（5）Including outer layer the first material strip group（51）, be stacked in it is described
Outer layer the first material strip group（51）Outer layer the second material strip group in outside（52）Be stacked in the outer layer the second material strip group（52）Outside
The material strip group of outer layer the 3rd（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）Single frame iron core stem is symmetricly set on by multiple opening respectively（11）The individual pen material strip frame closed assembly of upper end form, middle level
Two material strip groups（42）With outer layer the second material strip group（52）Single frame iron core stem is symmetricly set on by multiple opening respectively（11）With list
Frame iron core upper yoke（12）Between bending inclined-plane（14）On individual pen material strip frame closed assembly form, the material strip group of outer layer the 3rd（53）By many
Individual opening is symmetricly set on single frame iron core upper yoke（12）The individual pen material strip frame closed assembly at two ends form, wherein, positioned at each individual pen
Opening and disposed thereon and >=5mm with a distance from the nearest bending angle that is open on material strip frame, constitute the material of outer layer the 3rd
Band group（53）Individual pen material strip frame on opening be respectively positioned on along transformer core stem（6）In the column type space for upwardly extending, its
In, the transformer core stem（6）By inner ring single frame iron core（1）With outer ring single frame iron core（2）Single frame iron core stem（11）
It is put together.
2. according to the foldable plane three-phase opening transformer core described in claim 1, it is characterised in that：Composition inner ring single frame
Iron core（1）Middle material band group（4）And/or outer layer material strip group（5）For multigroup, and each group middle material band group（4）Closed assembly successively, respectively
Group outer layer material strip group（5）Closed assembly successively；Composition outer ring single frame iron core（2）Middle material band group（4）And/or outer layer material strip group（5）
For multigroup, and each group middle material band group（4）Closed assembly, each group outer layer material strip group successively（5）Closed assembly successively.
3. according to the foldable plane three-phase opening transformer core described in claim 1, it is characterised in that：Composition internal layer material strip
Group（3）, middle material band group（4）With outer layer material strip group（5）Individual pen material strip frame on be correspondingly arranged on 8 135 degree of bending angle.
4. according to the foldable plane three-phase opening transformer core described in claim 1, it is characterised in that：Composition internal layer material strip
Group（3）, middle material band group（4）With outer layer material strip group（5）Individual pen material strip frame on be correspondingly arranged on 12 150 degree of bending angle.
5. according to the foldable plane three-phase opening transformer core described in claim 4, it is characterised in that：The material strip of middle level second
Group（42）With outer layer the second material strip group（52）Include the individual pen material strip that multiple openings are symmetricly set on the first bending inclined-plane respectively
The individual pen material strip outer frame side and opening that frame and multiple closed assemblies are symmetricly set on the first bending inclined-plane in opening are symmetricly set on the
Individual pen material strip frame on eighty percent discount curving face, wherein, the first bending inclined-plane is located at single frame iron core stem（11）With single frame iron core upper yoke
（12）Between and one end and single frame iron core stem（11）Connection, the two ends on the second bending inclined-plane respectively with the first bending inclined-plane and list
Frame iron core upper yoke（12）Connection.
6. according to the foldable plane three-phase opening transformer core described in claim 1, it is characterised in that：Composition internal layer material strip
Group（3）, middle material band group（4）With outer layer material strip group（5）Individual pen material strip frame open butt joint position it is wrong by staged interlayer
Position arrangement.
7. according to the foldable plane three-phase opening transformer core any one of claim 1 to 6, it is characterised in that：
Transformer core stem（6）Section be in Long Circle or class inpolygon or step or rectangle or similar round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/072075 WO2017136997A1 (en) | 2016-02-10 | 2017-01-22 | Stack-type, planar, three-phase open transformer core |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016100834784 | 2016-02-10 | ||
| CN201610083478.4A CN105469950A (en) | 2016-02-10 | 2016-02-10 | Folding type planar three-phase open transformer core |
| CN201610718444 | 2016-08-25 | ||
| CN2016107184448 | 2016-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106710830A true CN106710830A (en) | 2017-05-24 |
Family
ID=58908086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710013178.3A Pending CN106710830A (en) | 2016-02-10 | 2017-01-09 | Foldable planar three-phase open transformer iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106710830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130197A (en) * | 2021-03-24 | 2021-07-16 | 无锡普天铁心股份有限公司 | Stacking method of three-phase three-column non-stacked upper yoke iron core |
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|---|---|---|---|---|
| JPH0831667A (en) * | 1994-07-11 | 1996-02-02 | Hitachi Ltd | Amorphous iron core transformer and manufacture thereof |
| JP2001244121A (en) * | 2000-03-01 | 2001-09-07 | Hitachi Ltd | Amorphous core transformer |
| CN101271757A (en) * | 2007-03-19 | 2008-09-24 | 齐侠 | Iron core of transformer |
| CN203787251U (en) * | 2014-01-03 | 2014-08-20 | 中铁工程设计咨询集团有限公司 | Special single-phase transformer, three-phase transformer and three-phase iron core for electrified railway |
| CN105469950A (en) * | 2016-02-10 | 2016-04-06 | 齐侠 | Folding type planar three-phase open transformer core |
| CN105513759A (en) * | 2016-01-29 | 2016-04-20 | 齐侠 | Foldable three-dimensional double-opening iron core |
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2017
- 2017-01-09 CN CN201710013178.3A patent/CN106710830A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831667A (en) * | 1994-07-11 | 1996-02-02 | Hitachi Ltd | Amorphous iron core transformer and manufacture thereof |
| JP2001244121A (en) * | 2000-03-01 | 2001-09-07 | Hitachi Ltd | Amorphous core transformer |
| CN101271757A (en) * | 2007-03-19 | 2008-09-24 | 齐侠 | Iron core of transformer |
| CN203787251U (en) * | 2014-01-03 | 2014-08-20 | 中铁工程设计咨询集团有限公司 | Special single-phase transformer, three-phase transformer and three-phase iron core for electrified railway |
| CN105513759A (en) * | 2016-01-29 | 2016-04-20 | 齐侠 | Foldable three-dimensional double-opening iron core |
| CN105469950A (en) * | 2016-02-10 | 2016-04-06 | 齐侠 | Folding type planar three-phase open transformer core |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130197A (en) * | 2021-03-24 | 2021-07-16 | 无锡普天铁心股份有限公司 | Stacking method of three-phase three-column non-stacked upper yoke iron core |
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Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |