CN103745815A - Planar triangular three-phase transformer - Google Patents
Planar triangular three-phase transformer Download PDFInfo
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- CN103745815A CN103745815A CN201410006313.8A CN201410006313A CN103745815A CN 103745815 A CN103745815 A CN 103745815A CN 201410006313 A CN201410006313 A CN 201410006313A CN 103745815 A CN103745815 A CN 103745815A
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- iron core
- phase transformer
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Abstract
The invention discloses a planar triangular three-phase transformer. The planar triangular three-phase transformer comprises iron cores, winding frameworks and molding solenoids, wherein the iron cores are wound into a pentagon, and the cross sections of the iron cores are semicircular; one face of the inner side of each iron core is a cambered surface, one face of the outer side is a plane, and the faces are spliced pairwise into a regular hexagon; the winding frameworks are arranged on joint portions of two adjacent iron cores, and are positioned on the same plane; the molding solenoids are arranged on the winding frameworks; the iron cores are provided with clamping pieces which are connected with support frames; the bottoms of the support frames are provided with ground feet. Compared with the prior art, the planar triangular three-phase transformer has the advantages that the transformation effect of the transformer is enhanced on the premise of the same electrical material; full enclosing of the iron cores is realized, air gaps and holes are eliminated, an innovative high-frequency magnetic material can be adopted, and a three-phase high-frequency electromagnetic-electric conversion three-phase transformer can be realized; automatic machining is realized; the three phases of molding solenoids are consistent in heat dissipating effect, and high protection property is achieved since the molding solenoids are positioned inside; convenience is brought to installation.
Description
Technical field
The present invention relates to transformer, relate in particular to a kind of plane hexagon three-phase transformer.
Background technology
In the prior art, no matter low pressure class control transformer, or high-power power transformer, is mainly to adopt E type structure (as shown in Figure 1).Its length of magnetic path is incomplete same.While bringing up practical application there is the difference of magnetoelectricity conversion in three-phase electromagnetic.
As shown in Figure 1, in conventional E type tri-phase iron core, one, column, the length of magnetic path of Tab and Tac is inconsistent, and the length of magnetic path of Tca and Tcb is also inconsistent, and the length of magnetic path of Tba and Tbc is consistent, and is short a kind of.Two, grip portion, the magnetic line of force Wei Si unit of conduction (with each signal lines Wei Yige unit), identical with column.
The effect forming is: in conventional E type tri-phase iron core, and the short and balance of the length of magnetic path of center pillar B, the length of magnetic path of side column is inconsistent.Cause center pillar inductance value can be greater than two posts on limit, the conversion efficiency of its electricity-magnetic-electricity is the highest.But due to physical structure, its radiating effect is poorer than two posts on limit again.
No matter in mounting means and the type of cooling, how to dispose, the drawback of this two aspect all exists.Particularly, in the today of advocating emerging green energy resource, its drawback can become major obstacles.
The inventor has invented the new-type stacked delta transformer of a kind of magnetic balance, as shown in Figure 2 and Figure 3, the 1st, mounting panel; The 2nd, under grip portion's iron core; The 3rd, fixing heat-resisting clamping plate of special isolation of the portion of gripping up and down; The 4th, the special-purpose tensioning support of lower triangle; The 5th, under grip portion's iron core; The 6th, the special-purpose tensioning support of top triangle; 7 is one of three columns, line bag; The 8th, connect and use harness cord screw rod; The 9th, rigid condition is installed and from radiation air, is flowed to.
In the structure of this triangular three-phase transformer or core of reactor and magnetic loop Fig. 2, Fig. 3, can find out, three-phase three columns are being gripped three mid points of portion's equilateral triangle respectively, the magnetic closed loop physical dimension forming is in full accord, and space structure, distance are all consistent.Overcome the drawback of conventional E shaped iron core transformer completely.
But still have air gap, as transformer, use and go back defectiveness.Be particularly suitable for the employing as three-phase reactor.
Summary of the invention
The present invention, in order to solve the above-mentioned deficiency of prior art, provides a kind of plane hexagon three-phase transformer.
Above-mentioned purpose of the present invention realizes by following technical scheme: a kind of plane hexagon three-phase transformer, it is characterized in that: comprise iron core, bobbin and form wire bag, described coiling iron core becomes pentagon, and its cross section is semicircle, iron core inner side one side is cambered surface, outside one side is plane, is spliced between two regular hexagon; Described bobbin is arranged at the joint portion of adjacent two iron cores, and in the same plane; Described form wire bag is arranged on bobbin; Described iron core is provided with holder, and holder connects bracing frame, and bracing frame bottom is provided with lower margin.
Described bobbin comprises by two and half cylindrical shells and forming, and described half cylindrical shell is provided with upper surface and lower surface, and described lower surface is provided with hole, as special perforated gear, connects, and the gear of usining is inputted as rotational power, drives bobbin to rotate, and realizes coiling; Described upper surface is provided with inclined-plane, and this inclined-plane is to hold out against wheel stress surface as what coordinate with gear.So, after secured core, the form that adopts electric transmission to realize bobbin rotation can wind the line.Owing to realizing equipment automatization, can easily realize high efficiency, high accuracy control and high-quality and make.After line wrapping, adopt insulation strip to fill between bobbin and iron core, keep bobbin consistent with the moulding spacing of iron core.Integral body realizes after insulation processing, and high-quality three-phase transformer can be realized.
Described iron core is made by silicon steel band.
The present invention's advantage is compared with prior art:
1, the present invention adopts coiled iron core moulding, realizes totally-enclosed iron core.Without air gap and any hole, significantly reduced the loss of transformer, also take special-shaped sawing sheet mode, coiling and molding iron core semicircular in shape cross section.After combination of two, iron core becomes circular cross-section.The geometrical relationship of setting up with iron core after the moulding of line wrapping can be arbitrarily angled in full accord, makes electromagnetic field realize the conversion of best electromagnetism electricity.
And not only magnetic balance problem of E type tri-phase iron core is unsurmountable, adopting laminated combination and installing not only has air gap to exist, and also need on iron core, process hole for installing and using.The control difficulty of air gap brings up that performance is inconsistent, loss control difficulty is large.
With respect to E type tri-phase iron core, material therefor of the present invention can not increase.
Therefore,, under the prerequisite of identical electric material, transformer conversion effect of the present invention can be better.
2, the present invention adopts coiled iron core moulding, realizes totally-enclosed iron core, without air gap and any hole, also can adopt more new-type high-frequency magnetic material, as crystallite band.Can realize three-phase high-frequency electrical magnetoelectricity conversion high-frequency three-phase transformer.And conventional E type tri-phase iron core almost can not be realized high frequency performance reliably based on air gap and magnetic imbalance.
See existing high-frequency magnetic material manufacture, it is airtight only having annular core again, realize three-phase transformer and be difficult to.With regard to existing high frequency three-phase generating technique, adopt single-phase output to be combined into three-phase, corresponding defect is also a lot.
Therefore,, under high frequency service condition, transformer of the present invention surmounts prior art far away.
3, bobbin of the present invention is positioned at same plane, realizes automation processing, overcomes the defect of quality conformance and inefficiency under manual operation pattern, and particularly, for high-power electric power type transformer, the defect of artificial is fatal.
4, bobbin of the present invention is positioned at same plane, with regard to its installation form and line pack arrangement form, adopts Plane Installation; the version of three-phase form wire bag is the same, forms naturally upper lower air duct, and the radiating effect of line bag is consistent; and line bag is positioned at whole inside, protectiveness is good.
5, easy for installation.
Accompanying drawing explanation
Fig. 1 is conventional E type three phase transformer iron core structural representation.
Fig. 2 is the plan structure schematic diagram of delta transformer of the present invention.
Fig. 3 is the cutaway view at A-A place in Fig. 2.
Fig. 4 is the structural representation of iron core of the present invention.
Fig. 5 is the combination assumption diagram of iron core of the present invention, bobbin and form wire bag.
Fig. 6 is the cutaway view at B-B place in Fig. 4.
Fig. 7 is structural representation of the present invention.
Fig. 8 is the upward view of Fig. 7.
Fig. 9 is the structural representation of bobbin of the present invention.
Figure 10 is the structural representation of bobbin of the present invention lower surface.
Figure 11 is the circuit structure diagram of three grades of reverse cascaded patterns.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 4, Figure 5 and Figure 6, a kind of plane hexagon three-phase transformer, it is characterized in that: comprise silicon steel band iron core 10, bobbin 20 and form wire bag 30, described iron core 10 is wound into pentagon, and its cross section is semicircle, iron core 10 inner sides are simultaneously cambered surface, and outside is simultaneously plane, is spliced between two regular hexagon; Its mechanical structure mode is identical with physical dimension, and electromagnetic performance is also identical.Whole iron core does not have hole and gap, can keep the minimum magnetic loss of transformer and three-phase electromagnetic performance in full accord;
As shown in Fig. 7, Fig. 8, Fig. 9 and Figure 10, described bobbin 20 is arranged at the joint portion 40 of adjacent two iron cores, and in the same plane, described bobbin 20 comprises by two and half cylindrical shells 201 and forming, and described half cylindrical shell 201 is provided with 202He lower surface, upper surface 203, and described lower surface 203 is provided with hole 204, as special perforated gear, connect, the gear of usining is inputted as rotational power, drives bobbin 20 to rotate, and realizes coiling; Described upper surface 202 is provided with inclined-plane 205, and this inclined-plane 205 is to hold out against wheel stress surface as what coordinate with gear.So, after secured core, the form that adopts electric transmission to realize bobbin 20 rotations can wind the line.Owing to realizing equipment automatization, can easily realize high efficiency, high accuracy control and high-quality and make.After line wrapping, adopt insulation strip to fill between bobbin 20 and iron core 10, keep bobbin 20 consistent with the moulding spacing of iron core 10.Integral body realizes after insulation processing, and high-quality three-phase transformer can be realized;
As shown in Figure 7, Figure 8, described form wire bag 30 is arranged on bobbin 20; Described iron core 10 is provided with holder 50, and holder 50 connects bracing frame 60, and bracing frame 60 bottoms are provided with lower margin 70.
Along with a large amount of rises and the popularization of emerging green energy resource, the high speed development of quality of power supply technology, the necessity of energy savings etc., all need the employing of high-frequency high-power electromagnetic conversion technology, material.Transformer of the present invention can adopt all material from power frequency to high frequency, can become the key of high-frequency high-power transducer.The present invention can be applicable to high-frequency high-power electromagnetic conversion, and loss is lower than like product.
At present, emerging electric energy is administered technology and has been developed into suitable height, as the maturation of multi-stage cascade pattern super high power converter technology.Adopting three transformers of the present invention easily to realize, reach the effect without low-order harmonic, is the most rationally embodying of new-type electric energy transmission technology.As shown in figure 11, be a kind of circuit structure of three grades of reverse cascaded patterns.Amount to 18 speed-sensitive switches, adopt large scale digital formula cyclelog to realize PWM ripple and control.Each group of A bridge, B bridge and C bridge all can realize the three-phase alternating current output of 120 ° of three-phase mutual deviations.By large scale digital formula cyclelog PWM ripple control technology, tri-groups of phase differences of also realizing-15 ° of A/B/C.By realizing vector superposed output U/V/W three-phase voltage and O zero line voltage after cascade.Be characterized in realizing the accurate control of phase place, by the vector superposed stack that realizes output variable, by cascade, realize counteracting and the restriction of low-order harmonic, realize and exporting without low-order harmonic.
The hexagon three-phase transformer that employing totally-enclosed coiling and molding iron core of the present invention combines can accurately embody the transmission of phase place between primary and secondary, can not produce because of the conversion of electricity-magnetic-electricity new error.Easily realize the continuously generation of high-power, the high-frequency three-phase alternating current of the form such as variation of optional frequency.
Overall says, the present invention is based on the inherent shortcoming of conventional versatility E type three-phase transformer and the inherent shortcoming of more advanced delta transformer, object based on emerging green energy resource Technology Need proposes, the great feature of the advanced person that possesses skills, accuracy of manufacture guarantee and wide accommodation.
Above-mentioned embodiment is exemplary, is to be this patent to be comprised to the restriction of scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses do be anyly equal to change or modify, all fall into the scope that this patent comprises.
Claims (3)
1. a plane hexagon three-phase transformer, is characterized in that: comprise iron core, bobbin and form wire bag, described coiling iron core becomes pentagon, and its cross section is semicircle, iron core inner side one side is cambered surface, and outside is simultaneously plane, is spliced between two regular hexagon; Described bobbin is arranged at the joint portion of adjacent two iron cores, and in the same plane; Described form wire bag is arranged on bobbin; Described iron core is provided with holder, and holder connects bracing frame, and bracing frame bottom is provided with lower margin.
2. a kind of plane hexagon three-phase transformer according to claim 1, is characterized in that: described bobbin comprises by two and half cylindrical shells and forming, and described half cylindrical shell is provided with upper surface and lower surface, and described lower surface is provided with hole; Described upper surface is provided with inclined-plane.
3. a kind of plane hexagon three-phase transformer according to claim 1, is characterized in that: described iron core is made by silicon steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006313.8A CN103745815A (en) | 2014-01-07 | 2014-01-07 | Planar triangular three-phase transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006313.8A CN103745815A (en) | 2014-01-07 | 2014-01-07 | Planar triangular three-phase transformer |
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| CN103745815A true CN103745815A (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410006313.8A Pending CN103745815A (en) | 2014-01-07 | 2014-01-07 | Planar triangular three-phase transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215969A (en) * | 2017-07-04 | 2019-01-15 | 发那科株式会社 | Core main body and reactor |
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| CA1029104A (en) * | 1973-03-20 | 1978-04-04 | Rene Imbert | Three-phase mains transformer |
| US4234862A (en) * | 1977-07-22 | 1980-11-18 | Alsthom-Unelec | Robust polyphase transformer |
| SU792303A1 (en) * | 1978-06-30 | 1980-12-30 | Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им. Е.О.Патона Ан Украинской Сср | Regulating three-phase transformer with magnetic switching |
| SU1228203A1 (en) * | 1982-08-16 | 1986-04-30 | Предприятие П/Я А-1427 | Electromagnetic device |
| US4639705A (en) * | 1984-03-06 | 1987-01-27 | Beisser Jean Claude | Transformer with gapless core on support |
| US4975670A (en) * | 1988-11-04 | 1990-12-04 | Sundstrand Corporation | Air cooled transformer |
| US5537089A (en) * | 1993-05-27 | 1996-07-16 | Parker-Hannifin Corporation | Three phase transformer with reduced harmonic currents |
| CN2330050Y (en) * | 1997-11-11 | 1999-07-21 | 东南大学无锡应用科学与工程研究院有限责任公司 | Three-phase dry-power transformer with circular section iron core |
| CN2591731Y (en) * | 2003-01-03 | 2003-12-10 | 章成铭 | Ring iron core dry type transformer |
| CN101872670A (en) * | 2009-04-24 | 2010-10-27 | 陈耕田 | Hexagonal closed loop iron core transformer |
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2014
- 2014-01-07 CN CN201410006313.8A patent/CN103745815A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1029104A (en) * | 1973-03-20 | 1978-04-04 | Rene Imbert | Three-phase mains transformer |
| US4234862A (en) * | 1977-07-22 | 1980-11-18 | Alsthom-Unelec | Robust polyphase transformer |
| SU792303A1 (en) * | 1978-06-30 | 1980-12-30 | Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им. Е.О.Патона Ан Украинской Сср | Regulating three-phase transformer with magnetic switching |
| SU1228203A1 (en) * | 1982-08-16 | 1986-04-30 | Предприятие П/Я А-1427 | Electromagnetic device |
| US4639705A (en) * | 1984-03-06 | 1987-01-27 | Beisser Jean Claude | Transformer with gapless core on support |
| US4975670A (en) * | 1988-11-04 | 1990-12-04 | Sundstrand Corporation | Air cooled transformer |
| US5537089A (en) * | 1993-05-27 | 1996-07-16 | Parker-Hannifin Corporation | Three phase transformer with reduced harmonic currents |
| CN2330050Y (en) * | 1997-11-11 | 1999-07-21 | 东南大学无锡应用科学与工程研究院有限责任公司 | Three-phase dry-power transformer with circular section iron core |
| CN2591731Y (en) * | 2003-01-03 | 2003-12-10 | 章成铭 | Ring iron core dry type transformer |
| CN101872670A (en) * | 2009-04-24 | 2010-10-27 | 陈耕田 | Hexagonal closed loop iron core transformer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215969A (en) * | 2017-07-04 | 2019-01-15 | 发那科株式会社 | Core main body and reactor |
| CN110993275A (en) * | 2017-07-04 | 2020-04-10 | 发那科株式会社 | Core body, reactor, and manufacturing method for manufacturing core body |
| US10734154B2 (en) | 2017-07-04 | 2020-08-04 | Fanuc Corporation | Core body reactor |
| US11107618B2 (en) | 2017-07-04 | 2021-08-31 | Fanuc Corporation | Core body and reactor |
| CN110993275B (en) * | 2017-07-04 | 2023-04-07 | 发那科株式会社 | Core body, reactor, and manufacturing method for manufacturing core body |
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Application publication date: 20140423 |
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