CN1808643A - Sectional iron core transformer/reactor - Google Patents
Sectional iron core transformer/reactor Download PDFInfo
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- CN1808643A CN1808643A CN 200610033591 CN200610033591A CN1808643A CN 1808643 A CN1808643 A CN 1808643A CN 200610033591 CN200610033591 CN 200610033591 CN 200610033591 A CN200610033591 A CN 200610033591A CN 1808643 A CN1808643 A CN 1808643A
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Abstract
This invention relates to one section rolled iron core structure transducer and reactance, wherein, the section method adopts the electrical fire line cutting process to cut the iron core column section and the iron core cover line is aligned to the magnetic path. The iron core materials are of non-crystal alloy materials. The invention structure and process method alternates the iron core process and explores the new process and the invention product property parameters keep the property demands.
Description
Field that the present invention belongs to:
The invention belongs to power equipment manufacturing technology unshakable in one's determination field, also belong to transformer or reactor manufacturing technology field.
Technical background:
Existing power equipment, iron core as transformer or reactor, single-phase or three-phase structure no matter, a kind of is plane laminated core structure, another kind is volume core construction (having the plane to roll up three-phase structure unshakable in one's determination and three dimensional wound core three-phase structure again to three-phase volume core construction).The problem that plane laminated core structure mainly exists is: seam unshakable in one's determination causes loss height, exciting current big more, stock utilization is low, noise is big, need expensive cut-to-length equipment investment, lamination technology to expend man-hour etc. very much, in addition, the asymmetric power transmission and transformation quality that also influences of three-phase magnetic circuit.So people begin sight is focused on the volume core construction, succeed in developing three phase planes and three-dimensional volume iron core transformer.Yet, roll up the complexity of also bringing manufacturing process when jointless structure unshakable in one's determination brings the benefit of loss and noise reduction, on the one hand, roll up annealing process trouble unshakable in one's determination, power consumption, on the other hand because closed core causes the Wound iron-core transformer manufacturing process different fully with plane laminated core transformer, Wound iron-core transformer must use special coil winding machine coiling on core limb, it is very difficult making coil in this case, it is more difficult to want molded coil to make dry-type transformer, and the efficient of coiling is very low, therefore needs the more coil winding machine device resource of configuration.Making the investment that the cut-to-length of saving unshakable in one's determination is increased extraordinary spooling equipment again like this offsets.
In addition, Wound iron-core transformer thinks that more emat coil almost is impossible when the winding coil fault.
For the iron-core reactor product, the manufacturing of discus is unusual consumes resources, outstanding behaviours is in the snip and the lamination operation of discus, existing technology is exactly that height according to discus cuts into fragment to silicon steel sheet, and then the folded discus of making uses, a reactor may need thousands of discus sheets, and its shearing and folded system expend to produce well imagines that the cost of reactor just is valued for here man-hour.
Invention task and technical scheme:
We can say that core construction has determined transformer or reactor manufacturing process (comprising process equipment and technological process) generally, also just determined its manufacturing cost on the whole.The present invention is intended to seek a kind of core construction and manufacture method thereof, both can image plane laminated core transformer make coil and iron core coil and unshakable in one's determinationly finish assembling then like that independently in the general assembly operation, can resemble does not again have seam in window unshakable in one's determination corner the Wound iron-core transformer, do not need cut-to-length processing lamination unshakable in one's determination, do not need lamination, tear loaded down with trivial details flow charts such as sheet and inserted sheet open.
The present invention has conceived the method for a kind of Wire-cut Electrical Discharge Machining iron core or discus, rolling or the whole Wire EDM disjunction of stack silicon steel plate core shell of column together, can obtain the iron yoke section of discus or band stem, like this, unshakable in one's determination the having no progeny at stem section branch of volume just can like that independently be made coil and follow-up overall the assembling by image plane laminated core transformer, have both volume process characteristic unshakable in one's determination and technical performance advantage again, this method is applicable to the manufacturing of transformer and iron core of electric reactor.
The core construction and the processing method that the present invention relates to below in conjunction with description of drawings.
Fig. 1 is single-phase volume core construction schematic diagram
Fig. 2 is that volume broken line unshakable in one's determination divides section structural representation (front view and left view)
Fig. 3 is the plane volume core construction schematic diagram that stem contains the magnetic circuit gap
Fig. 4 is the three-phase flat surface transformer core construction schematic diagram that four volume iron core frames constitute
Fig. 5 is the three-phase flat surface transformer core construction schematic diagram that three volume iron core frames constitute
Fig. 6 is the three-phase stereo volume core construction schematic diagram that three volume iron core frame △ yoke pieces become
Fig. 6 .1 is an individual volume iron core frame schematic diagram of three-phase stereo volume core construction
Fig. 7 is the three-phase stereo volume core construction schematic diagram that stem contains the magnetic circuit gap
Fig. 8 example goes out the structure chart and the assembly relation of three-phase stereo transformer or reactor
Provide the front view and the vertical view of structure among Fig. 4-Fig. 8.
Among Fig. 1-Fig. 8,1-epimere U-shaped band stem yoke, 2-hypomere U-shaped band stem yoke, 3-composition surface.
Among Fig. 3 and among Fig. 7,4-discus, 5-magnetic circuit gap, 6-discus post.
Among Fig. 8, the 7-coil.
Fig. 1 illustrates general single-phase transformer volume iron core frame unshakable in one's determination, and its core section can be circle or rectangle or other shapes.The toroid plane that the aspect of silicon steel sheet forms when closed perpendicular to the two iron leg hearts.In its shell of column unshakable in one's determination appropriate location Wire EDM disjunction, be divided into two U-shaped band stem yokes up and down, after mounting coil is gone into hypomere U-shaped band stem yoke (2), place epimere U-shaped band stem yoke (1) again and can make magnetic circuit closed fully.Its composition surface (3) can be bonding can be not bonding yet.The benefit of bonding butt joint is not to make the winding replacing or the reparation of transformer become possibility.
General composition surface (3) is positioned at the upper end of shell of column unshakable in one's determination, like this, and the accuracy that can observe shell of column contraposition unshakable in one's determination when butt joint is unshakable in one's determination behind the assembling winding coil.
Although this core construction has increased by 2 seams than seamless volume iron core, but because seam is at shell of column unshakable in one's determination, so the magnetic line of force is still along silicon steel sheet rolling direction, and because the precision of Wire-cut Electrical Discharge Machining disjunction core limb is high, so cutting section can restore identical fully, the magnetic circuit gap length that the composition surface increases almost can be ignored, the magnetic resistance that is to say increase is extremely limited, and the supplementary load loss unshakable in one's determination that bring thus and the increase of exciting current also are limited.Compare with laminated core, become 2 directly seams by 4 corner connection seams, the seam number has reduced 50%, so, progress on the iron circuit performance is significant, and its processing quality and process efficiency also improve greatly, the more important thing is and have saved expensive silicon steel sheet cut-to-length equipment investment.
In case volume is unshakable in one's determination by disjunction, the essence change will take place in the manufacturing process of conventional roll iron-core transformer so, just need not re-use the special-purpose coil winding machine coiling of ring-shaped core.Saved expensive annual core winder equipment investment so again, and the low 'bottleneck' restrictions of the winding efficiency of annual core winder are broken, in case winding coil can independently be made, just can adopt pouring technology or other special processes to make high performance coil, make Wound iron-core transformer begin to step into the dry-type transformer epoch by the oil immersed type epoch.
In order further to improve the joint reliability of locating on composition surface (3) and to reduce supplementary load loss, increase bond area, composition surface (3) further can be processed into broken line shape cut surface, see the structure that Fig. 2 illustrates.This zig zag plane of Wire-cut Electrical Discharge Machining is unusual simple thing.Like this, after the butt joint of two parts U-shaped band stem yoke, form a kind of similar tenon formula connected structure, and improved aligning accuracy up and down.When two parts needed adhesive bond, zig zag plane had increased bond area greatly, has improved structural strength.Magnetic line of force radiating area not in one plane can not reduce the additional iron losses at place, composition surface when zig zag plane made the magnetic line of force penetrate the composition surface.
When iron core is applied to the reactor product, need in iron circuit, appropriateness increase the magnetic circuit gap to increase magnetic resistance, at this moment, shell of column unshakable in one's determination is carried out repeatedly Wire EDM disjunction, just can obtain the iron core of electric reactor structure of Fig. 3 signal.The shell of column unshakable in one's determination of disjunction just becomes discus (4), gets involved the non-magnetic material dividing plate between the discus (4), obtains magnetic circuit gap (5).The discus that cutting processing is finished (4) and magnetic circuit gap (5) are closed assembly together, and further resin-cast becomes a whole discus post (6).The butt joint assembling of two parts U-shaped band stem yoke and two iron leg cake posts forms complete iron core of electric reactor magnetic circuit about when like this, iron core of electric reactor assembles being exactly.
Fig. 4 illustrates the three-phase flat surface transformer iron core of being made up of 4 same volume iron core frames.The single frame core construction is identical with single-phase iron core.This volume cross section unshakable in one's determination generally is a rectangle, also can be inboard semicircular, and the three-phase winding coil is sleeved on three inner posts.Its processing method is that 4 the whole assembling of volume iron core frame backs are at shell of column Wire EDM disjunction iron core unshakable in one's determination.Composition surface (3) can be plane or the zig zag plane that the line cutting forms.
Fig. 5 illustrates the three-phase flat surface transformer iron core of being made up of 3 volume iron core frames.The single frame structure is identical with single-phase iron core.The cross section of this volume iron core frame can be a rectangle, also can be semicircular, and inboard semicircle of inside casing and housing outside semicircle are combined into circular core limb.The three-phase winding coil is sleeved on three posts.Its processing method is that 3 the whole assembling of volume iron core frame backs are at shell of column Wire EDM disjunction iron core unshakable in one's determination.Composition surface (3) can be plane or the zig zag plane that the line cutting forms.
Fig. 6 illustrates the three-phase stereo transformer core of being made up of 3 same volume iron core frames.Fig. 6 .1 has illustrated the wherein independently complete volume iron core frame of a phase.The cross section profile of this volume iron core frame is semicircular, and the shell of column of adjacent volume iron core frame makes two semicircles be combined into circular core limb side by side, and the yoke section of adjacent volume iron core frame joins end to end and forms the Δ yoke of three-phase transformer iron core.The three-phase winding coil is sleeved on three combination stems.Its processing method is after 3 identical volume iron core frame integral installations are made into the iron core of stereochemical structure, at shell of column Wire EDM disjunction iron core unshakable in one's determination.Composition surface (3) can be plane or the zig zag plane that the line cutting forms.
Fig. 7 illustrates the three-phase stereo iron core of electric reactor of being made up of 3 same volume iron core frames.The cross section profile of this volume iron core frame is semicircular, and the shell of column of adjacent volume iron core frame makes two semicircles be combined into circular core limb side by side, and the yoke section of adjacent volume iron core frame joins end to end and forms the Δ yoke of three-phase reactor iron core.The three-phase winding coil is sleeved on three combination stems.Its processing method is after 3 identical volume iron core frame integral installations are made into the iron core of stereochemical structure, at shell of column Wire EDM disjunction iron core unshakable in one's determination.Shell of column unshakable in one's determination is carried out repeatedly Wire EDM disjunction, just can obtain the three-dimensional iron core of electric reactor structure of Fig. 7 signal.The shell of column unshakable in one's determination of disjunction just becomes discus (4), gets involved the non-magnetic material dividing plate between the discus (4), obtains magnetic circuit gap (5).The discus that cutting processing is finished (4) and magnetic circuit gap (5) are closed assembly together, and further resin-cast becomes a whole discus post (6).The butt joint assembling of two parts U-shaped band stem Δ yoke and three discus posts (6) forms complete three-phase reactor iron circuit about when like this, iron core of electric reactor assembles being exactly.
In sum, no matter be flat surface transformer or three-dimensional transformer, single-phase or three-phase transformer, plane reactor or three-dimensional reactor, single-phase or three-phase reactor, no matter core section is shaped as rectangle or combination circle, the core construction that the present invention relates to all has identical feature: unshakable in one's determination having no progeny at the shell of column branch docked the formation closed magnetic circuit again, this segmentation docking structure also just becomes the magnetic structure in band magnetic circuit gap naturally, it is the magnetic structure of reactor, segmentation unshakable in one's determination has guaranteed like this that in shell of column disjunction unshakable in one's determination the magnetic line of force is all the time along silicon steel sheet rolling direction.The method of disjunction core limb is perpendicular to the silicon steel sheet longitudinal length and carries out Wire-cut Electrical Discharge Machining, and the section of disjunction can be plane or zig zag plane.
If reactor magnetic circuit gap is bigger, gap location certainly exists the crooked and diffusion of the bigger magnetic line of force so, just require to use the fan-shaped discus structure of arranging of silicon steel sheet, at this time, no longer be to utilize whole volume iron core to cut discus, but fold the fan-shaped long core limb of arranging of system silicon steel sheet in advance, and then the core limb Wire EDM branch of this structure is broken into discus one by one.Discus that cutting processing is finished and magnetic circuit gap dividing plate be closed assembly together, and further resin-cast becomes a whole discus post (6).When the iron yoke of reactor adopted stacked iron yoke structure, same available the method was made discus post (6).
Fig. 8 example goes out the structure chart and the assembly relation of three-phase stereo transformer or reactor, among the figure, and winding coil (7) and hypomere U-shaped band stem yoke (2) assembled in advance, butt joint assembling epimere U-shaped band stem yoke (1) forms complete closed magnetic circuit unshakable in one's determination again.
Because the temperature of transformer when operation bottom unshakable in one's determination is more much lower than top, consider the thermal endurance of splicing face, single problem from this point of view, composition surface (3) are arranged on the bottom for well, but assembly technology is very not convenient.
Fig. 8 example is a special case, just becomes the sectional iron core transformer/reactor that the present invention relates to behind the core construction suit winding coil of Fig. 1-Fig. 7 example respectively.
In addition, the permeability magnetic material of the core construction of Fig. 1-Fig. 7 example can also be the amorphous alloy magnetic conduction silicon steel sheet with power savings advantages except that hot rolling silicon steel sheet, cold-reduced silicon sheet.Amorphous alloy material is because the hardness of superelevation is difficult to shearing processing, and thickness of strip has as thin as a wafer also increased the shearing processing capacity greatly.And adopt electric spark wire cutting method to be very easy to the iron core frame of disjunction by amorphous alloy magnetic conduction silicon steel sheet roll-forming.So core construction that the present invention relates to and processing method very are fit to make the amorphous alloy transformer/reactor of sectional iron core.
After unshakable in one's determination and coil assembles,, can carry out structure-reinforced at each band of periphery reinforcement of rolling up iron core frame for the volume core construction.
Core construction to this butt joint engages requires to have each section that draws screw-rod structure or pulling plate structure tightening iron core reliably, and needs reliable tightening winding coil.
Unshakable in one's determination or the three phase planes volume core construction of this three-phase stereo volume when expanding to high-power transformer, can be introduced cooling airway or coolant flow channel in the middle of unshakable in one's determination, core construction and the forming method that the present invention relates to are constant.
For improving structural strength unshakable in one's determination and reducing noise, can print continuously or spraying adhesive at the silicon steel sheet interlayer when rolling silicon steel sheet, the existence of the interlaminar bonding agent of this trace can not influence Wire-cut Electrical Discharge Machining.
The transformer/reactor manufacturing process of disjunction shell of column core construction changes and has simplified the manufacturing process of existing Wound iron-core transformer fully, has started iron-core reactor and has adopted the volume new method of making unshakable in one's determination, and its technical process is summarized as follows:
1) rolls the volume single frame unshakable in one's determination of magnetic circuit closure.
2) to single-phase transformer or reactor, at shell of column disjunction iron core unshakable in one's determination, moulding discus and increase the magnetic circuit gap in case of necessity; To three-phase transformer/iron core of electric reactor, after being assembled into complete three-phase overall structure unshakable in one's determination (plane or solid type structure), at three shell of column disjunction iron cores unshakable in one's determination, moulding discus and increase the magnetic circuit gap in case of necessity.
3) coiling wound coil or foil coil.Dry-type transformer or dry reactor product are then needed the moulding resin solid insulation, pourable moulding or dip forming.Particularly point out, manufacturing unshakable in one's determination and coil are made separate, do not restrict mutually, can carry out high-tension coil manufacturing, low-voltage coil manufacturing and unshakable in one's determination the manufacturing synchronously.
4) assembling coil and segment core at first go up suit coil (7) at hypomere U-shaped band stem yoke (2), and butt joint assembling epimere U-shaped band stem yoke (1) forms complete closed magnetic circuit unshakable in one's determination again, relies on then and draws screw rod or pulling plate structure tightening core limb and coil.
5) to oil-filled transformer/reactor, but mass-impregnation resin, reinforced structure and insulation as required after the ironcore choke assembling.
6) assembling shell and other parts.
7) then vacuumize of oil-immersed type transformer/reactor, oiling.
Point out in passing, Wire EDM technology is a kind of mechanical processing technique of maturation, the combining with digital control technology can realize various metal materials of high accuracy cutting processing and alloy material, cutting amorphous alloy material is also without any difficulty, equipment investment seldom, and not having machining stress, machined surface magnetic changes very little.Through the galvanic corrosion oxidation and the alligatoring effect on composition surface, make the composition surface adhesive property improve.Implement the effect that technical scheme of the present invention obtains:
Sectional iron core transformer is a kind of product of a kind of performance between Wound iron-core transformer and laminated core transformer, possesses the complex art economy.
Wire EDM disjunction stem formula package assembly unshakable in one's determination, changed the Wound iron-core transformer manufacturing process, started the manufacturing new technology of volume iron-core reactor, improve discus and made efficient, simplify technology and saved punching equipment and cut-to-length, saved annual core winder, widened the process that the volume ironcore choke is made, and kept the performance parameter of rolling up product unshakable in one's determination substantially; Relatively the laminated core flat surface transformer has improved properties of product, can reduce the wastage and noise, reduces exciting current, reduces small product size, saves material, saves lamination man-hour; And, make Wound iron-core transformer by being applicable to that the oil-immersed type transformer field is extended to dry-type transformer and ast resin transformer field; The sectional scrolling iron core transformer is easy repair and replacement fault coil when winding coil breaks down.
Wire EDM disjunction core limb processing method is particularly useful for the manufacturing unshakable in one's determination of amorphous alloy volume.
To distribution transformer, the low pressure winding generally adopts the foil coil structure, and the sectional iron core transformer of shell of column disjunction unshakable in one's determination provides convenience for the use of low pressure foil coil.Coiling Copper Foil coiling almost is impossible and want on three-phase stereo volume stem unshakable in one's determination directly, the difficulty of saying so at least.
Claims (10)
1, a kind of transformer/reactor volume core construction, have iron yoke and core limb part, it is characterized in that: constitute every iron core of rolling up iron circuit mutually and be divided into two sections at least, the branch section/composition surface (3) when epimere U-shaped band stem yoke (1) and hypomere U-shaped band stem yoke (2) butt joint make the magnetic circuit closed loop is on shell of column unshakable in one's determination; When iron circuit need increase air-gap reluctance, the position, composition surface (3) when two sections U-shaped band stem yoke butt joints was got involved and is placed third part discus post (6) or magnetic circuit gap (5).
2, iron core according to claim 1 is characterized in that: the composition surface (3) when epimere U-shaped band stem yoke (1) and hypomere U-shaped band stem yoke (2) butt joint make the magnetic circuit closed loop is plane section or the broken line shape zig zag plane section that the cutting of core limb warp forms.
3, iron core according to claim 1, it is characterized in that: three same volume iron core frames are formed the iron core of three-phase stereo structure, the cross section profile of each volume iron core frame is semicircular, the shell of column of adjacent volume iron core frame makes two semicircles be combined into circular core limb side by side, and the yoke section of adjacent volume iron core frame joins end to end and forms the Δ yoke of three-phase stereo iron core; Three stem composition surfaces (3) are plane section or the broken line shape zig zag plane sections that the cutting of core limb warp forms.
4, iron core according to claim 1 is characterized in that: three the epimeres iron cores of three-phase magnetic circuit and the yoke section of three hypomere iron cores and shell of column all in a plane, form the plane core construction; Three stem composition surfaces (3) are plane section or the broken line shape zig zag plane sections that the cutting of core limb warp forms.
5, a kind of single-phase or three-phase transformer/reactor of rolling up core construction, comprise iron core, coil and structural fasteners etc., it is characterized in that: constitute every iron core of rolling up iron circuit mutually and be divided into two sections at least, the branch section/composition surface (3) when epimere U-shaped band stem yoke (1) and hypomere U-shaped band stem yoke (2) butt joint make the magnetic circuit closed loop is on shell of column unshakable in one's determination; When iron circuit need increase air-gap reluctance, the position, composition surface (3) when two sections U-shaped band stem yoke butt joints was got involved and is placed third part discus post (6) or magnetic circuit gap (5); Coil (7) is assemblied on the shell of column unshakable in one's determination of segmented iron core.
6, the single-phase or three-phase transformer/reactor of volume core construction according to claim 5 is characterized in that: magnetic material unshakable in one's determination is the amorphous alloy permeability magnetic material.
7, the iron core made of a kind of hot rolled silicon steel sheet or cold-reduced silicon sheet or amorphous alloy silicon steel sheet or the cutting method for dividing of core limb, it is characterized in that: silicon steel sheet carries out Wire EDM disjunction shell of column unshakable in one's determination by rolling or folded system formation silicon steel sheet stack shell of column unshakable in one's determination perpendicular to the silicon steel sheet longitudinal length.
8, a kind of forming method unshakable in one's determination with the magnetic circuit gap, it is characterized in that: hot rolled silicon steel sheet or cold-reduced silicon sheet or amorphous alloy silicon steel sheet are by rolling or folded system formation silicon steel sheet stack shell of column unshakable in one's determination, carry out Wire EDM disjunction shell of column unshakable in one's determination perpendicular to the silicon steel sheet longitudinal length and obtain discus (4), getting involved nonmagnetic substance formation magnetic circuit gap (5) between the shell of column unshakable in one's determination of disjunction or between the discus (4); Closed loop series combination by epimere U-shaped band stem yoke (1), discus (4), gap (5), hypomere U-shaped band stem yoke (2) becomes the iron circuit in complete band magnetic circuit gap.
9, forming method unshakable in one's determination according to claim 8 is characterized in that: the integrated poured resin in polyphone assembling back of discus (4) and magnetic circuit gap (5) is made discus post (6); Closed loop series combination by epimere U-shaped band stem yoke (1), discus post (6), hypomere U-shaped band stem yoke (2) becomes complete iron circuit.
10, a kind of manufacture method of rolling up the single-phase or three-phase transformer/reactor of core construction comprises unshakable in one's determination and the manufacturing of winding coil and the assembling of the two, it is characterized in that: unshakable in one's determination make and the coil manufacturing relatively independent; After constituting single-phase or three-phase, plane or three-dimensional iron circuit and being assembled into integral body, at the stem section Wire EDM disjunction of iron core shell of column unshakable in one's determination, obtain epimere U-shaped band stem yoke (1) and hypomere U-shaped band stem yoke (2), when magnetic circuit need increase air-gap reluctance, between two parts U-shaped band stem yoke, get involved and place third part discus post (6) or magnetic circuit gap (5); From a minute section/composition surface (3) separation of iron stem, the winding coil (7) of suit complete moulding is by pulling plate structure or Tiebar structure tightening coil and iron core.
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| CN 200610033591 CN1808643A (en) | 2006-02-15 | 2006-02-15 | Sectional iron core transformer/reactor |
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| CN 200610033591 CN1808643A (en) | 2006-02-15 | 2006-02-15 | Sectional iron core transformer/reactor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859630A (en) * | 2009-04-09 | 2010-10-13 | 浙江广天变压器有限公司 | Amorphous alloy multi-inclined-plane composite iron core of medium-high frequency transformer |
| CN102543369A (en) * | 2010-12-28 | 2012-07-04 | 上海吴淞电气实业有限公司 | Novel voltage transformer iron core and manufacturing method thereof |
| CN102930958A (en) * | 2012-09-27 | 2013-02-13 | 江苏锴博材料科技有限公司 | Core for composite induction transformer |
| CN103003895A (en) * | 2011-06-27 | 2013-03-27 | 丰田自动车株式会社 | Inductor and manufacturing method therefor |
| CN106024321A (en) * | 2016-06-16 | 2016-10-12 | 秦皇岛市燕秦纳米科技有限公司 | Low-noise CD-type iron core, transformer and iron core preparation method |
| CN106653310A (en) * | 2016-12-29 | 2017-05-10 | 江苏越达电力设备有限公司 | Insulating high-voltage dry-type iron-core series reactor based on resin material |
| CN107808732A (en) * | 2016-09-08 | 2018-03-16 | 发那科株式会社 | Reactor |
| CN111899964A (en) * | 2020-08-03 | 2020-11-06 | 上海交通大学 | Multi-winding high-frequency transformer with solid insulation structure |
| WO2021134501A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳市高斯博电子科技有限公司 | Toroidal magnetic core, toroidal transformer, and toroidal inductor and automatic manufacturing method therefor |
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2006
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859630A (en) * | 2009-04-09 | 2010-10-13 | 浙江广天变压器有限公司 | Amorphous alloy multi-inclined-plane composite iron core of medium-high frequency transformer |
| CN102543369A (en) * | 2010-12-28 | 2012-07-04 | 上海吴淞电气实业有限公司 | Novel voltage transformer iron core and manufacturing method thereof |
| CN103003895A (en) * | 2011-06-27 | 2013-03-27 | 丰田自动车株式会社 | Inductor and manufacturing method therefor |
| CN103003895B (en) * | 2011-06-27 | 2014-07-09 | 丰田自动车株式会社 | Inductor and manufacturing method therefor |
| CN102930958A (en) * | 2012-09-27 | 2013-02-13 | 江苏锴博材料科技有限公司 | Core for composite induction transformer |
| CN106024321A (en) * | 2016-06-16 | 2016-10-12 | 秦皇岛市燕秦纳米科技有限公司 | Low-noise CD-type iron core, transformer and iron core preparation method |
| CN106024321B (en) * | 2016-06-16 | 2018-08-17 | 秦皇岛市燕秦纳米科技有限公司 | Low noise CD iron-cores, transformer and iron core preparation method |
| CN107808732B (en) * | 2016-09-08 | 2021-04-23 | 发那科株式会社 | Electric reactor |
| CN107808732A (en) * | 2016-09-08 | 2018-03-16 | 发那科株式会社 | Reactor |
| CN106653310A (en) * | 2016-12-29 | 2017-05-10 | 江苏越达电力设备有限公司 | Insulating high-voltage dry-type iron-core series reactor based on resin material |
| WO2021134501A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳市高斯博电子科技有限公司 | Toroidal magnetic core, toroidal transformer, and toroidal inductor and automatic manufacturing method therefor |
| CN111899964A (en) * | 2020-08-03 | 2020-11-06 | 上海交通大学 | Multi-winding high-frequency transformer with solid insulation structure |
| CN111899964B (en) * | 2020-08-03 | 2024-04-26 | 上海交通大学 | Multi-winding high-frequency transformer with solid insulation structure |
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