EP3510607A1 - Noyau pour dispositif d'induction électrique - Google Patents

Noyau pour dispositif d'induction électrique

Info

Publication number
EP3510607A1
EP3510607A1 EP17791956.0A EP17791956A EP3510607A1 EP 3510607 A1 EP3510607 A1 EP 3510607A1 EP 17791956 A EP17791956 A EP 17791956A EP 3510607 A1 EP3510607 A1 EP 3510607A1
Authority
EP
European Patent Office
Prior art keywords
core
spacers
sheets
yoke
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17791956.0A
Other languages
German (de)
English (en)
Other versions
EP3510607B1 (fr
Inventor
Jörg FINDEISEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP3510607A1 publication Critical patent/EP3510607A1/fr
Application granted granted Critical
Publication of EP3510607B1 publication Critical patent/EP3510607B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • 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
    • 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
    • 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
    • H01F27/24—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
    • H01F3/00—Cores, Yokes, or armatures

Definitions

  • the invention relates to a core for an electrical induction ⁇ tion device with a plurality of magnetizable sheets, which bear against each other to form a sheet stack, wherein arranged between two sheets Abstandshal ⁇ ter at least one cooling channel.
  • Such a core is known in the art and is used in electrical induction devices such as transformers or chokes.
  • the core has a multiplicity of flat magnetizable metal sheets, which abut one another with their flat sides forming a sheet stack.
  • Spacers may be arranged between two sheets, which together define cooling channels with the two sheets between which they are arranged. These cooling channels allow the removal of heat loss arising in the core.
  • the disadvantage is that the spacers require additional space and reduce the fill factor of the core.
  • the spacers cover a large part of the surface of the two sheets on which they rest. This part of the respective sheet is due to the low Wär ⁇ meleiten the material of the spacer for the heat mekonvetation not available.
  • the core can be made as compact as Be ⁇ part of the active part as compact as possible, at the same time a good cooling is possible.
  • the object of the invention is therefore to provide a core of the type mentioned, which can be charged higher thermally and at the same time enables better cooling.
  • the invention solves this problem in that the spacer ⁇ holder at least partially made of metal. Through the use of at least partially metallic Abstandshal ⁇ tern is provided in the core for a larger thermal conductivity.
  • the arrangement and design of the spacers in the cooling channel of the core takes place in such a manner that contact surfaces for heat transfer to the metallic spacers are formed between the core plates delimiting a cooling duct and the spacers, and the outer surfaces of the spacers, which are not adjacent to the core laminations, provide convection surfaces for delivering the heat to the metal substrate Cooling channel located cooling fluid form.
  • the heat transfer from the core to the insulating fluid is facilitated, so that sets a higher cooling capacity.
  • the useful for heat conduction and convection surface is increased within the scope of the invention. This results in more efficient cooling.
  • the core according to the invention may be provided with smaller cooling channels or with a reduced number of cooling channels for the same cooling capacity, so that the core is made more compact.
  • the materials of the spacers chosen according to the prior art are often not equal to the permissible temperatures, in particular when using insulating liquids with higher thermal loads, such as ester oils.
  • Spacers in the invention can be exposed to higher temperatures without causing damage.
  • the core can thus withstand higher thermal loads.
  • Metallic spacers are also inexpensive, so that the manufacturing cost of the core according to the invention are reduced compared to the prior art.
  • the used at least partially metallic Ab ⁇ spacers are preferably designed as flat rods. In the stack of sheets, the spacers lie with their flat flat sides against the core sheets surrounding the cooling channels.
  • the spacers are provided with an electrically insulating insulating layer on each of their sides , which face a metal sheet.
  • the two sides of the spacer, which are not facing a sheet, however, have no insulation layer. In this way, a circular flow causing bridging between the core sheets and eddy currents in the spacers can be avoided.
  • an insulating layer for example, a phosphating layer or a layer of insulating varnish with a small layer thickness is possible.
  • the spacers are arranged at a distance from each other massive Stä ⁇ be, are preferably used for the preparation of the spacers semi-products made of steel or aluminum.
  • the spacers preferably have a projection over the adjacent core sheets in order to further increase the area that can be used for convection.
  • the spacers are not out as continuous rods from ⁇ but form spacer segments, which are arranged on a sheet metal plane at a distance from each other. Preferably, these spacer segments on the Kernblechober ⁇ surface offset from each other to achieve a turbulence of the flow of the insulating fluid.
  • the spacers are at least partially designed as hollow profiles. Since these also have contact on their inner surface to the flowing insulating fluid, the surface available for convection increases and thus the effectiveness of cooling continues. Hollow profiles are available at low cost on the market.
  • the spacers have a plurality of spaced-apart spacer segments, which are interconnected via connecting webs, wherein the height of the connecting webs corresponds to a maximum of half the height of the cooling channel so as not to hinder the flow of the cooling liquid.
  • these connecting webs are designed such that they contribute to a turbulence of the flow of the cooling liquid.
  • the spacers are at least partially designed as round rods.
  • the spacers are at least partially made of a magnetizable material and in particular of layered magnetizable sheets.
  • Magnetizable spacers like the remaining sheets of the core, can absorb the magnetic flux and thus contribute to increasing the magnetic cross section in the core.
  • the spacers consist of layered magnetizable sheets.
  • the layered design of the magnetizable sheets serves to suppress eddy currents in the spacers.
  • only the respective outer bearing against the sheets of the core areas of the spacers are made of a magnetizable material, while the inner region consists of a largely unmag ⁇ netic metallic material.
  • the magnetizable material of the spacer ⁇ holder on a magnetic preferential separation Preferably, the magnetizable material of the spacer ⁇ holder on a magnetic preferential separation.
  • the metal sheets of the spacers are arranged in the same layer direction and magnetic preferred direction as the core sheets surrounding the cooling channel.
  • the layered sheets of the spacers are connected by an adhesive or varnish to strip-shaped packages.
  • the magnetic preferred direction is suitably aligned.
  • the magnetic preferred direction is expediently oblique or angled to a groove extending through the core, for example in a core region in which sheet metal edges abut one another and form the said joint.
  • This core area is referred to below as the impact area.
  • the joints which are each formed by two abutting sheets, can be from sheet metal layer to sheet metal layer ver ⁇ sets to each other.
  • the magnetic spacers magnetically bridge the joint and reduce the magnetic resistance of the joint.
  • the spacers preferably extend over the abutting region of the core sheets.
  • the spacers and the adjoining sheet edges of the stack of sheets form an angle in a sectioned side view of the core.
  • Angle may be so as wasbil ⁇ det that a desired magnetic Flussver- distribution is established in consideration of the preferred magnetic direction of the core sheets and the preferred magnetic direction of the spacer in the present invention.
  • the spacers formed of magnetic material with magnetic preferred direction in the region of the joint between a leg plate and a yoke plate are aligned such that the angle between ⁇ rule the magnetic preferred direction of the magnetic material of the spacers and the joint between 70 ° and 110 ° lies.
  • This arrangement can be a good Kochbrü- Achieving the joints, and achieve an advantageous magnetic flux ⁇ distribution in the cooling channel surrounding core area.
  • the spacers are equipped with at least one spring element.
  • the spring element provides a certain damping.
  • the spacers are formed of an expanded metal mesh ⁇ or a wire mesh.
  • Streckme- tallow or wire mesh are inexpensive and can be ⁇ sandwiched between two core sheets in the production of the core simple.
  • a non-conductive Arre ⁇ t istsvorraum is integrated into openings of the Streckmetallgitterstruk- structure. This further simplifies the production of the core according to the invention.
  • the sheets can be equipped, for example, with upstanding from their stacking holding ⁇ pins.
  • the expanded metal grid is elastically bent in the sheet stack.
  • the expanded metal mesh provides an advantageous spring effect already described above, so that a mechanical damping, a simplified production and a better mechanical support of the core are possible.
  • the spacers are designed as a wire mesh.
  • a wire mesh is obtained at low cost on the market ⁇ Lich.
  • the wire from which the wire mesh is formed preferably has a round or elliptical cross section, so that edges or tips are avoided in the wire mesh, which can damage the insulation of the core sheet.
  • Corrugated wire mesh can be used in many different variations, allowing easy adaptation to the geometric conditions of the core.
  • a wire mesh or wire mesh consists for example of two wires woven together and / or possibly additional reinforcing wires. Both wires can be mutually curled. Deviating from this, corrugated wires enclose a straight untwisted wire.
  • the spacers as a coil spring wire cloth out ⁇ leads.
  • such a braid is such decor with dark ⁇ tet that the waves of nes substantially horizontally arranged in the later installation position of the KER part of wires of the wire ⁇ braid are configured such that the cover of the vertical cooling channel maximum corresponds to half the cooling channel width.
  • these connecting webs are designed such that they contribute to a turbulence of the flow of the cooling liquid.
  • the attachment portion can be used for attachment but also for lifting or transporting the core.
  • the formation of a mechanical stable attachment portion is made possible only by the selection of a metallic material for the spacers.
  • the attachment section is expediently equipped with a connection holder.
  • the terminal holder is, for example, also connected from a metallic material gefer ⁇ Untitled and fixed to the mounting portion, examples For example, molded on this.
  • the connection bracket is used for mechanical connection with components of the induction device such as the cover of a transformer.
  • the spacers are made of a magnetizable material, it is advantageous that the spacers have an inner region of a non-magnetic metallic material.
  • the spacer In a cross-sectional view of the spacer, a sandwich arrangement is thus provided, wherein the inner region of two outer magnetizable sections of the spacer is embedded.
  • the two outer magnetizable sections are each facing the sheet stack of the core.
  • the outer magnetizable areas also consist of layered magnetizable sheets.
  • the spacers of the upper yoke on the side opposite to a high voltage winding in use in a transformer are extended beyond the lower edge of the yoke and form an arc in the area of overlap of the yoke (5) over the winding, constituting the Yoke (5) partially covered.
  • the sheet serves to avoid high electric field strengths.
  • FIG. 1 shows schematically an embodiment of the core according to the invention in a sectional side view
  • Figure 2 shows schematically a core formed of laminated flat sheets and both prior art spacers and has metallic spacers according to the present invention
  • FIG. 3 schematically illustrates a joint region with spacers in a side view
  • Figure 4 shows another joint area with spacers
  • Figure 5 shows a further embodiment of the erfindungsge ⁇ MAESSEN core
  • FIG. 6 shows a further embodiment of the core according to the invention
  • Figure 7 illustrates finger-shaped spacer for the erfindungsge ⁇ MAESSEN core
  • FIG. 8 shows a core with spacers according to FIG. 7 and FIG.
  • FIG. 9 schematically illustrates an embodiment of a spacer 9
  • FIG. 10 shows an embodiment of the core 1 with a Ab ⁇ standholder according to Figure 9 in a
  • Figures 11 and 12 illustrate further embodiments of a Ab ⁇ stand holder
  • Figures 13 and 14 illustrate further embodiments of the OF INVENTION ⁇ to the invention core.
  • Figure 1 shows an embodiment of the core 1 according to the invention in a partially sectioned side view.
  • the core has three core legs 2, 3 and 4.
  • the core 1 has an upper yoke 5, as well as a lower yoke 6.
  • the core 1 is made in order to avoid eddy current losses at ei ⁇ nem use in a transformer or a choke of flat planar so magnetizable sheets.
  • the sheets lie with their flat sides against each other.
  • FIG. 1 shows a sheet from the middle of the core 1 in a plan view. The stacking direction of the sheets points into or out of the drawing plane.
  • the sheet metal of the core leg 2 shown is formed at its two ends in a V-shape.
  • the shown Sheet metal abuts here sheets of the upper or lower yoke 4,5 under formation of a joint. This applies correspondingly to the sheets lying below or above the plane of the drawing.
  • Other impact areas 8 arise between the Kernschen- no 3 and 4 and the upper yoke 5 and the unte ⁇ ren yoke 6.
  • In the joint areas 8 abutting the laminations of the core 1 formed from a likewise obliquely ⁇ de joint.
  • Between two mutually parallel sheets spacers 9 are arranged, which are made of a metallic material.
  • the spacers 9 of the central core limb 2 are designed in the illustrated embodiment as solid rods, wherein they are configured rectangular in cross-section in the embodiment shown. Between the spacers 9, lying in a plane all the same distance from each other, extending cooling channels 10.
  • the spacers 9 of the core legs 3 and 4 are not designed as a continuous rods. Rather, the spacers are designed in the form of blocks, wherein the individual blocks are not connected to each other but limit transverse channels, via which the longitudinally of the core legs 3.4 parallel cooling channels 10 are interconnected.
  • the flow of an insulating fluid in this area is illustrated schematically by the arrows 11.
  • the block-shaped configuration of the Abstandshal ⁇ ter 9 can be realized in a further embodiment of the invention by the use of a wire mesh or the like.
  • FIG. 2 illustrates the structure of the laminated core of the leg of a core 1, which can be used both with spacers according to the invention.
  • tern 9 is equipped with spacers 12 according to the prior art.
  • metallic spacers 9 according to the invention can be seen in the lower half, while the spacers 12 in the upper part of FIG. 2 according to the prior art are made of an insulating material.
  • the outer surfaces of the sheets 13, which are facing ei ⁇ nem cooling duct 10 and at the same time allow a heat exchange with the lierfluid flowing in the cooling duct 10, shown by bold lines.
  • the spacers 9 of the embodiment shown are formed of layered magnetizable sheets 13.
  • the sheets 13 of the Ab- stand holder 9 are arranged in the same layer direction and magnetic preferred direction, as well as made of the same material as the cooling duct 10 surrounding core sheets 13th
  • FIG. 3 shows the impact region 7 of the core 1 according to the invention in more detail. It can be seen that in the joint area 7, a gap is formed, which is formed by mutually abutting with their edges sheets. The joints of the plate pairs are offset from one another layer by layer. This is indicated by the dashed line, which indicates a gap lying behind the plane of the drawing.
  • the spacers 9 of the leg 2 of a laminated magnetisable material having egg ne preferred magnetic direction. Furthermore, the laminated magnetizable spacers 9 extend in the upper and lower yoke area.
  • the magnetic preferred direction of the Belche 13 of the core and the magnetic preferential ⁇ direction of the spacers 9 is illustrated by double arrows light.
  • the spacers 9 extend at an angle through the joint area 7 and thus the joints formed there.
  • Preferred direction of the layered sheets 13 of the core 1 are aligned with each other and the joint so that adjusts before ⁇ geous magnetic flux distribution in the core 1, as soon as it is used in a transformer or in a throttle.
  • Sections 9.5 of the spacers 9 which are arranged in the yoke 5, but outside the impact region and demzu ⁇ follow not pass over the gap between the core sheet of the leg and the core sheet of the yokes, are in the illustrated embodiment is not made of a magnetizable material such as electrical steel but of a non- made of magnetizable metallic material.
  • the layered sheets of the spacers 9 are connected by an adhesive or paint strip-shaped packages.
  • FIG. 4 shows the joint region 8 between the upper yoke and the limb of a core according to FIG. 1, whereby also here the spacers 9 extend through the joint area 8.
  • the spacers 9 extend through the joint area 8.
  • the metal sheets 13 of the core yoke 5, 6 and of the core leg 3 have a magnetic preferential direction in the longitudinal direction of the metal sheet in order to reduce the idling losses. Consequently, a change in the preferred magnetic direction occurs at an angle of approximately 90 degrees at the joint 8.2.
  • the spacers 9 in the joint area 8 are also formed in the embodiment of Figure 4 by layered sheets ⁇ , which have a magnetic preferred direction.
  • the preferred direction extends, by corresponding to ⁇ cut the spacers 9, parallel to the long cutting edge of the spacers 9 or in other words in the longitudinal direction of the spacers 9.
  • the alignment of the thus formed spacer 9 takes place at an angle between 70 ° and 110 ° to the butt joint 8.2. This results in each case a difference between the magnetic preferred directions of the spacers 9 to the core sheets between 25 ° and 65 °.
  • Figure 5 shows a further embodiment of the inventive core 1, which differs from that illustrated in Figure 1 embodiment in that the Ab are ⁇ spacers are not formed at right angles but approximately in the illustrated cross-sectional view.
  • the in cross cut round or circular spacer 9 have the advantage that their size can be chosen independently of the Dimensio ⁇ discrimination of the core 1, so that the are reduced herstel ⁇ development costs.
  • the spacers are formed from aluminum discs ⁇ .
  • the spacers 9 of a plane for example the plane 14, offset from the spacers 9 of the adjacent plane 15 or 16 are arranged.
  • Each Ab ⁇ spacers 9 of the plane 14 is therefore a gap between spacers 9 of the level 15 or 16 opposite arranged ⁇ .
  • the flow of the iso- lierfluides can be improved, as Darge ⁇ represents by arrows 11.
  • Figure 6 shows an embodiment wherein the distance holder ⁇ training 9 circular metallic spacer segments 24 to. These spacer segments 24 are on the surface of the
  • Sheets staggered to achieve turbulence in the flow of insulating fluid.
  • the spacer segments 24 are interconnected by schematically illustrated net-shaped connecting webs 25. These connecting webs 25 have a smaller height than the spacer segments 24 in order to prevent the
  • FIG. 7 shows the sectional view of a spacer 9 according to the figure 6. It can be seen that between the sheets 13 through the spacer segments 9, a cooling channel 10 is gebil ⁇ det.
  • the spacer segments 24 are connected via the connecting webs 25 ⁇ one another, the connecting webs 25 have a maximum height of 50% of the height of the spacer segments 9 in order not to impede the flow of the insulating fluid in the cooling pin 10.
  • the connecting webs 25 are here in such a way stated that they contribute to a turbulence of the flow of the insulating fluid.
  • Figures 8 and 9 show further examples of a spacer 9, which is realized here by a wire mesh 9.1 and 9.2. This is available at low cost and has due to the used round wire 9.1 or 9.2 no edges or tips, which can damage the insulation of the core sheet 13 ⁇ .
  • the embodiment of the spacer 9 as the overall welltes wire mesh design permits a high frequent ⁇ diversity and good adaptability to the geometrical conditions of the cooling channels of the core.
  • FIG. 10 shows an embodiment of the core 1 according to the invention in a sectional side view. It is recognizable bar ⁇ that the metallic spacers 9 are carried out as a solid component 9 wherein they extend with a Fixed To ⁇ constriction portion 17 from the core 1 out.
  • the Ab ⁇ spacers 9 and mounting portions 17 are in the exemplary embodiment made of steel.
  • the mounting portion 17 is equipped with elements for attachment of stop centers for lifting and transporting the core.
  • the pressed core 1 makes possible a good transfer of the weight of the core via the correspondingly formed spacers 9 and the fastening sections 17 integrated in them.
  • the customary for the prior art devices for attachment of the stop means on the yoke press bar can be omitted.
  • the fixing portions 17 enlarge the surface of the spacers 9, so that the heat dissipation from the core 1 is further improved.
  • the spacers 9 of the upper yoke 5 on the side, which is opposite to a high-voltage winding 26 in use in a transformer over the lower edge of the upper yoke 5 ver ⁇ extended and form in the region of the overlap of the winding 26th an arc 18, which covers the next outer core stage of the yoke 5.
  • critical corners of the core yoke are shielded with regard to the dielectric strength.
  • FIG. 11 shows exemplary embodiments of spacers 9, each of which is equipped with a fastening section 17 for lifting and transporting the core 1.
  • a fastening section 17 for lifting and transporting the core 1.
  • the spacers 9 and the zugehö ⁇ ring fixing portions 17 are correspondingly massive out ⁇ leads.
  • the spacers concerned are equipped with finger-shaped webs which separate recesses 20.
  • the finger-shaped webs are mechanically designed so that they can absorb the weight of the core 1. They define recesses 20, the channel-shaped on both sides of the yoke plates of the core 1 out he stretch ⁇ and thus allow the entry and exit of a cooling fluid.
  • FIG. 12 shows the use of these finger-shaped spacer elements 9 in a core 1.
  • the channel-shaped recesses 20 extend over the entire height of the adjacent step 1.3 of the core yoke and form the cooling channels of the core 1.
  • the spacing element 9 shown on the right in FIG. 12 is provided with a fastening section 17 which projects beyond the core 1.
  • an eyelet 19 is formed for attaching stop means, which allows the transport and lifting of the core 1.
  • FIG. 13 and 14 embodiments of the OF INVENTION ⁇ to the invention the core 1 are shown, in which the metallic Spacer 9 at its attachment portion 17 an An ⁇ closing bracket 22 is formed.
  • the connection mount 22 extends on two spacers 9 in each case in the horizontal direction.
  • the terminal holder 22 shown serves for fastening of a housing part, for example of a lid 21 of a transfor ⁇ mators.
  • the terminal mount each extends perpendicularly, the cover 21 from ⁇ fastening elements 23, with which it is attached to the connection bracket 22. Furthermore, here are the spacers of the upper yoke at its lower edge in the region which covers the winding of the transformer, extended relative to the adjacent core stage 18 and with a radius which is larger than the width of the cooling channel rounded to the core ⁇ corners of the laminated cores shield the yoke with the largest sheet width opposite the winding electrically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention vise à mettre au point un noyau (1) pour un dispositif d'induction électrique comprenant une pluralité de tôles (13) magnétisables, qui s'appliquent les unes contre les autre de manière à former une pile de tôles, des espaceurs (9) agencés entre deux tôles formant au moins un canal de refroidissement (10) qui peut être soumis à des températures plus élevées et permet par la même occasion un meilleur refroidissement. À cet effet, les espaceurs (9) sont constitués au moins en partie de métal.
EP17791956.0A 2016-11-09 2017-10-10 Noyau pour dispositif d'induction électrique Active EP3510607B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016221992.8A DE102016221992A1 (de) 2016-11-09 2016-11-09 Kern für eine elektrische Induktionseinrichtung
PCT/EP2017/075720 WO2018086810A1 (fr) 2016-11-09 2017-10-10 Noyau pour dispositif d'induction électrique

Publications (2)

Publication Number Publication Date
EP3510607A1 true EP3510607A1 (fr) 2019-07-17
EP3510607B1 EP3510607B1 (fr) 2020-09-16

Family

ID=60201510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17791956.0A Active EP3510607B1 (fr) 2016-11-09 2017-10-10 Noyau pour dispositif d'induction électrique

Country Status (5)

Country Link
US (1) US11404196B2 (fr)
EP (1) EP3510607B1 (fr)
CN (1) CN109923626B (fr)
DE (1) DE102016221992A1 (fr)
WO (1) WO2018086810A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1769871A (en) * 1929-10-21 1930-07-01 Gen Electric Electrical induction apparatus
US3183461A (en) 1962-02-05 1965-05-11 Westinghouse Electric Corp Magnetic core structure with cooling passages therein
JPS55156312A (en) * 1979-05-25 1980-12-05 Hitachi Ltd Iron core for transformer
SE421570B (sv) 1980-05-21 1982-01-04 Asea Ab Med isolervetska kyld bandlindning for en transformator eller reaktor
JPS62140710A (ja) * 1985-12-17 1987-06-24 Honda Motor Co Ltd 工作機械用の工具駆動ユニットにおけるクラッチおよび工具交換操作装置
JPS62244113A (ja) * 1986-04-17 1987-10-24 Toshiba Corp セパレ−ト式箔巻変圧器鉄心
DE3632439A1 (de) * 1986-09-24 1988-03-31 Siemens Ag Transformator bzw. drosselspule
US9287030B2 (en) * 2011-05-26 2016-03-15 Franc Zajc Multi gap inductor core
US9524820B2 (en) * 2012-11-13 2016-12-20 Raytheon Company Apparatus and method for thermal management of magnetic devices
CN103854829A (zh) 2014-02-25 2014-06-11 广东明路电力电子有限公司 散热式电抗器
CN103904836B (zh) * 2014-03-07 2016-08-17 江苏通达动力科技股份有限公司 一种直驱永磁发电机定子铁芯的叠压装置及其叠压方法
CN105280354A (zh) 2015-09-30 2016-01-27 江苏华辰变压器有限公司 一种矩形截面铁芯的变压器
CN105810407A (zh) 2016-05-23 2016-07-27 江苏中容科技有限公司 一种变压器铁芯
CN106024322B (zh) 2016-06-29 2017-12-01 重庆益新阳工贸有限公司 一种电动汽车专用配电变压器铁芯结构

Also Published As

Publication number Publication date
US11404196B2 (en) 2022-08-02
CN109923626A (zh) 2019-06-21
CN109923626B (zh) 2021-06-04
EP3510607B1 (fr) 2020-09-16
US20200058433A1 (en) 2020-02-20
DE102016221992A1 (de) 2018-05-09
WO2018086810A1 (fr) 2018-05-17

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