EP3776813A1 - Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazu - Google Patents
Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazuInfo
- Publication number
- EP3776813A1 EP3776813A1 EP19723736.5A EP19723736A EP3776813A1 EP 3776813 A1 EP3776813 A1 EP 3776813A1 EP 19723736 A EP19723736 A EP 19723736A EP 3776813 A1 EP3776813 A1 EP 3776813A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulation system
- impregnating resin
- winding
- conductor
- volume
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 65
- 239000011347 resin Substances 0.000 claims abstract description 65
- 238000004804 winding Methods 0.000 claims abstract description 52
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims description 42
- 239000004020 conductor Substances 0.000 claims description 27
- 238000004382 potting Methods 0.000 claims description 12
- 238000010292 electrical insulation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 8
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 abstract description 10
- 238000005470 impregnation Methods 0.000 description 18
- 238000007654 immersion Methods 0.000 description 9
- 210000003298 dental enamel Anatomy 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 206010053567 Coagulopathies Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000035602 clotting Effects 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 201000009032 substance abuse Diseases 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1209—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements by impregnating a preformed part, e.g. a porous lining
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/10—Applying solid insulation to windings, stators or rotors
- H02K15/105—Applying solid insulation to windings, stators or rotors to the windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/046—Condition, form or state of moulded material or of the material to be shaped cellular or porous with closed cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0872—Prepregs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7498—Rotors
Definitions
- the invention relates to an improved electrical insulation system of an electric motor, in particular with respect to the insulation of the wire windings in the grooves of
- the invention relates to a manufacturing method for producing such an improved th electrical insulation system of an electric motor.
- stator In the order of magnitude of shaft height 63mm to 450 mm and accordingly the power of 150W to 1.6 MW is typically the so-called stator, so the laminated core equipped with pre-wound wire windings. These windings are mechanically introduced into the stator and then connected HCd.
- the electrical insulation of the individual wires with each other and with respect to lying on ground core package is ge by surface insulation materials, such as Pa, and the wire enamel of the individual winding wires gege ben.
- one or more stators are slowly dipped into a liquid-impregnating resin tank, so that the liquid impregnating resin flows into the cavities between the individual wires, the groove and the laminated core and fill these cavities. Afterwards, the so impregnated stators are affected by temperature
- Impregnating resin which fills the remaining cavities of the grooves in the immersion bath, in the volume that is still hollow after the wire winding, the finished encapsulation, for example in the form of a fully cured Duromers as
- Potting compound is particularly important because the heat dissipation of the wire winding, the mechanical fixation against vibration, the partial discharge resistance to the
- Laminated core and / or the passivation against dust and / or moisture of the laminated core and the conductor is guaranteed only by AS POSSIBLE complete filling with encapsulation.
- Impregnating resin because, for example, the viscosity in
- Immersion bath is not set low enough.
- Impregnating resin can not be optimized by admixing certain Addi tive in the form of particulate fillers.
- Such additives would be, for example, mica flakes to increase the partial discharge resistance, quartz powder, aluminum oxide and / or boron nitride to increase the thermal conductivity.
- Impregnation methods such as vacuum impregnation, spray impregnation, etc. of stators are usually the result of inadequate impregnation resin uptake. Defects in the electrical insulation system EIS, which forms cavities in larger gaps over a large area.
- the impregnating resins are costly further developed in that thixotroping of the impregnating resin is carried out in the dipping bath, i. the impregnating ver liquefies when immersing the stators due to the
- the impregnating resin has a very narrow gelling area, although completely into the groove
- the stators are partially preheated to use the effect of temperature-induced Viskosticiansver reduction during immersion.
- Pre-crosslinking - also called gelation - in the conductor itself requires several minutes of process time.
- the manufacturing process of the immersion impregnation is adapted to many different stator variants with regard to resin, speed and / or temperature, whereby only an average value is created, or the
- Impregnating resin in the immersion bath is oversized for some less demanding stators.
- Impregnating resin which in particular also includes additives and / or filling materials allows.
- the subject of the present invention is an electrical insulation system EIS of an electric motor, comprising at least one conductor with winding wire in a groove of a sheet packet of a stator, characterized in that the wire winding is embedded in the conductor in a potting, in the volume enlarging Particles are present.
- the subject of the present invention is a method for producing an electrical insulation system EIS of an electric motor, comprising the following method steps:
- a carrier medium such as a fiber or a fiber composite
- a carrier medium can be easily integrated into the winding process for the produc- tion of the wire winding, secondly loaded with enough content of impregnating resin to order the complete resin encapsulation for an electrical Isolati onsystem of an electric motor to provide and thirdly, the Loading the carrier medium, a filled impregnating ver can be used ver, so that any fillers and / or ad additives on the targeted introduction of an impregnating resin by means of carrier medium in the slot insulation can be inserted.
- carrier medium or "impregnating resin carrier” are preferably used before lying prepreg fibers, alone or in combination with other carriers. Further carriers in this sense may be sponges and / or foams, for example.
- a “conductor” is referred to herein a bundle of winding wires, which are wound together and form a bundle of winding wires, which is pulled into a groove of a laminated core.
- the impregnating resin filled with volume-enlarging particles inflates during the production of the finished EIS, so that only in the ferti gene electric motor, a fixed ratio of wire to Stromervo lumen in the winding or in the conductor can be determined. Since the inflation is based on an increase in volume of the winding already in the groove, a volume can also be produced in the finished EIS! of more than 40 vol% in the conductor is detectable by the impregnating resin within the wire winding.
- the prepreg fibers are wound simultaneously with the bundling of the winding wires, in particular the copper wires and so between tween the winding wires in the conductor with these in the winding and in the finished electric motor ,
- the number of prepreg fiber turns is chosen to be as small as necessary in relation to the winding wire turns no space in the groove, which would be filled with winding wire to waste.
- Prepreg fiber volume is accordingly in the voltage field between high enough that as complete as possible für trän effect of the stator after curing exists and as low as possible, so that the Volumenyogllgrad in the groove with Lei processing material, in particular with conductive winding wire, preferably with copper wire , does not suffer, selected.
- the introduction of the impregnating resin for the production of the EIS can be varied very easily during the winding by addition / reduction of the wound prepreg fibers in a wide range.
- long and / or continuous fibers are present in the conductor with winding wire in the ratio of 1 volume fraction of fiber to 3 volume portions of winding wire.
- the United ratio prepreg fiber to winding wire in the range of 1 to 3, as described above, up to 2 volumes of prepreg fiber to 1 volume fraction winding wire, so more prepreg fiber shares than winding wire shares in the head.
- the respective parts depend, for example, on the absorbency of the fiber, that is to say the resin content per volume fraction of fiber, the
- Impregnating which is also referred to as a reaction resin, introduced and with this the carrier medium, through which the filled impregnating resin targeted in the slot insulation
- the loaded carrier medium and / or The loaded fiber for example, referred to as "filled half stuff".
- Impregnating resin volume by a factor of 2 cause.
- additives can be introduced into the encapsulation of the slot insulation via the loading of a carrier medium with filled or unfilled impregnating resin.
- a duromer such as an epoxy resin, bakelite, crosslinkable polyurethane and / or poly ester resin is used as the impregnating resin.
- the decisive factor is that the impregnating resin B-state is capable.
- the carrier which is used according to a preferred embodiment of the invention for introducing the impregnating resin into the conductor, is filled with the
- B-state of a resin in the present case refers to a resin, for example a thermoset, which-especially at room temperature-gels superficially, may be slightly tacky, but has not yet hardened. stand is also characterized as a precursor and / or as a prepolymer be.
- Impregnating resin is crosslinked only to a small extent, but it receives superficial stability, so that it is not solid and crosslinked but also no longer liquid.
- a thermoset In the B state, a thermoset can be remelted and liquefied without decomposing.
- the support media used according to the invention preferably in the production of the conductor, so the winding of the conductive and insulated with wire enamel winding wires, Fa fibers which are used as prepreg fibers.
- the pre-impregnation of a fiber for producing the prepreg fiber can be carried out, for example, by means of dip-impregnation of the fiber. Fibers are passed through an immersion bath containing the
- Impregnating for example, a filled and / or additives with Ad-added impregnating resin, optionally diluted with a solvent contains.
- the still unladen fiber is pulled through the dipping bath in a predetermined speed, the fiber only once superficially and depending on the absorbency of the fiber within the fiber, for example, in open pores and / or braiding or Verfil tion cavities, impregnating resin absorbs.
- the preimpregnated fiber is dried and freed from solvent. In this case, the B state of the impregnating resin is produced in and on the fiber. It is possible that the fiber wetted with impregnating resin in the B state is superficially slightly tacky.
- prepreg fiber The so-impregnated and dried fiber is called "prepreg fiber.” It also falls under the term “semi-finished product”. In contrast, the fiber, which has no or only clotting conditions residual content of impregnating resin, simply referred to as "Fa ser". In the following, the mode of operation of the expanding particles is schematically illustrated by means of a figure.
- winding wires 1 depending Weil surrounded by wire enamel 2 in both figures.
- the winding wires 1 form, as can be seen on the left, together with the prepreg fibers 3, a bundle, the conductor 4.
- the winding wires 1 are aligned the same, preferably of course parallel or approximately the same orientation, so quasi parallel in Head 4 ahead.
- Foaming effect which causes a closure of larger cavities and defects with impregnating resin.
- a functionally filled impregnating resin 3 in the B state is set, which learns from a certain curing temperature Expan sion, so that processing technology existing hollow spaces of the slot insulation are filled by the swelling material.
- expandable, thermoplastic hollow spheres such as those of Akzo Nobel, available under the trade name Expancel®, can be used.
- closed-cell system acts and just the macroscopic "open pores" are closed by the foaming, passivation and mechanical fixation is also ge given.
- the partial discharge resistance is also improved with otherwise the same dielectric properties of the plastic in the faulty areas.
- combi nation with the use of prepreg fibers as a carrier medium for impregnating thermally expanding, better thermally conductive, and / or partial discharge resistant impregnating resins and potting materials are used by Dipping impregnation would not be usable. This increases the service life and performance of the motors. In addition ent fall manufacturing costs by eliminating the Tauchbad- impregnation process.
- the expansion sizes of the particles can be varied to further increase the partial discharge resistance, if necessary.
- the expansion variable is preferably selected according to the Paschen equation, which states that partial discharges ignite only above a minimum pore size.
- a smaller porosity deliberately introduced to increase the partial discharge resistance serves to prevent greater porosity, such as that between the conductor and the notches.
- the surface insulation material so example, the paper ge, in volume enlargement in the Nutecken ge suppressed and thus the cavity between the conductor and
- impregnation of a conductor-loaded laminated core is not achieved by dip impregnation, but by targeted introduction of a
- Impregnating resin which is filled with volume-increasing particle ge, proposed in the grooves of the laminated core.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18170757.1A EP3565089A1 (de) | 2018-05-04 | 2018-05-04 | Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazu |
PCT/EP2019/061442 WO2019211465A1 (de) | 2018-05-04 | 2019-05-03 | Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazu |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3776813A1 true EP3776813A1 (de) | 2021-02-17 |
Family
ID=62116335
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18170757.1A Withdrawn EP3565089A1 (de) | 2018-05-04 | 2018-05-04 | Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazu |
EP19723736.5A Pending EP3776813A1 (de) | 2018-05-04 | 2019-05-03 | Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazu |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18170757.1A Withdrawn EP3565089A1 (de) | 2018-05-04 | 2018-05-04 | Elektrisches isolationssystem eines elektromotors und herstellungsverfahren dazu |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210242759A1 (de) |
EP (2) | EP3565089A1 (de) |
CN (1) | CN112243560A (de) |
WO (1) | WO2019211465A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022108328A1 (de) | 2022-04-06 | 2023-10-12 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Elektrische Maschine, Verfahren zum Betreiben einer elektrischen Maschine und Verfahren zur Herstellung einer mikrostrukturierten Oberfläche an einem Stator oder Rotor |
DE102022108324A1 (de) | 2022-04-06 | 2023-10-12 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Elektrische Maschine, Verfahren zum Betreiben einer elektrischen Maschine und Verfahren zur Herstellung einer mikrostrukturierten Oberfläche an einem Stator oder Rotor |
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US7790284B2 (en) * | 2008-09-24 | 2010-09-07 | Davies Robert M | Flexible composite prepreg materials |
JP2011162685A (ja) * | 2010-02-10 | 2011-08-25 | Hitachi Cable Ltd | 紫外線架橋発泡絶縁電線の製造方法 |
EP2475076A1 (de) * | 2011-01-05 | 2012-07-11 | Alstom Technology Ltd | Verfahren zur Herstellung eines Stators und eines Statorstabs, Stator und Statorstab |
US20130069474A1 (en) * | 2011-09-16 | 2013-03-21 | Remy Technologies, L.L.C. | Composite conductor insulation |
DE102012205650A1 (de) * | 2012-04-05 | 2013-10-10 | Siemens Aktiengesellschaft | Isolierstoff für rotierende Maschinen |
GB201308704D0 (en) * | 2013-05-15 | 2013-06-26 | Rolls Royce Plc | Electrical apparatus encapsulant |
WO2017073551A1 (ja) * | 2015-10-28 | 2017-05-04 | 住友電気工業株式会社 | 絶縁電線及び絶縁層形成用ワニス |
US10607750B2 (en) * | 2017-03-24 | 2020-03-31 | Sumitomo Electric Industries, Ltd. | Insulated wire |
-
2018
- 2018-05-04 EP EP18170757.1A patent/EP3565089A1/de not_active Withdrawn
-
2019
- 2019-05-03 WO PCT/EP2019/061442 patent/WO2019211465A1/de unknown
- 2019-05-03 CN CN201980037916.5A patent/CN112243560A/zh active Pending
- 2019-05-03 US US17/052,770 patent/US20210242759A1/en active Pending
- 2019-05-03 EP EP19723736.5A patent/EP3776813A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US20210242759A1 (en) | 2021-08-05 |
CN112243560A (zh) | 2021-01-19 |
WO2019211465A1 (de) | 2019-11-07 |
EP3565089A1 (de) | 2019-11-06 |
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