EP3607569B1 - Elektroisoliertes elektrisches leitungsband, insbesondere für elektromotoren und transformatoren - Google Patents
Elektroisoliertes elektrisches leitungsband, insbesondere für elektromotoren und transformatoren Download PDFInfo
- Publication number
- EP3607569B1 EP3607569B1 EP18715509.8A EP18715509A EP3607569B1 EP 3607569 B1 EP3607569 B1 EP 3607569B1 EP 18715509 A EP18715509 A EP 18715509A EP 3607569 B1 EP3607569 B1 EP 3607569B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- enamel
- electrical conductor
- thickness
- face
- 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.)
- Active
Links
- 239000004020 conductor Substances 0.000 claims description 21
- 210000003298 dental enamel Anatomy 0.000 claims description 19
- 239000002390 adhesive tape Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 9
- 238000010292 electrical insulation Methods 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229920003055 poly(ester-imide) Polymers 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 239000004811 fluoropolymer Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920000620 organic polymer Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000004922 lacquer Substances 0.000 description 17
- 239000011888 foil Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005499 meniscus Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000590913 Euploea core Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- LTMHDMANZUZIPE-PUGKRICDSA-N digoxin Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2[C@H](O[C@@H](O[C@@H]3C[C@@H]4[C@]([C@@H]5[C@H]([C@]6(CC[C@@H]([C@@]6(C)[C@H](O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)C[C@@H]2O)C)C[C@@H]1O LTMHDMANZUZIPE-PUGKRICDSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
- H01B7/0018—Strip or foil conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
Definitions
- the present invention relates to an electrically insulated electrical conductor strip, in particular for electric motors and transformers, with a strip-shaped electrical conductor which has an upper cover surface and a lower cover surface, two side edge surfaces and one end edge surface each, and with electrical insulation on at least one cover surface of the band is arranged.
- Electrical conductor strips of this type are referred to, for example, as electrical steel or electrical steel and are used to produce magnetic circuits for electrical machines, i.e. cores for dynamos, electric motors, transformers, relays, contactors, choke coils, ignition coils, electricity meters and controllable deflection magnets.
- Cold-rolled strips and sheets made from iron-silicon alloys are particularly common. Since eddy currents occur in a coil core made of solid material under the influence of changing magnetic fields, which can cause the core to become hot, the cores are exclusively designed as laminated and insulated sheets in packages or as wound cut strip cores.
- wire enamels such as THEIC-modified polyester imides, polyamides and epoxies, solderable wire enamels made of polyurethane and adhesive enamels such as e.g. B. made of PVB (polyvinyl butyral) and polyamide.
- GB 900 519 A and EP 3 109 873 A1 disclose electrical conductor tapes coated with an insulating layer of latex and further wrapped in an insulating adhesive tape.
- the present invention has for its object to provide an electrically insulated electrical conductor strip of the type described above, which with can be produced with reduced effort, in particular using a lacquer for the insulation, but has a high electrical insulating effect.
- the insulation comprises a layer of lacquer and an adhesive film tape which is glued to the lower cover surface and/or the upper cover surface of the strip-shaped electrical conductor, at least in one area , which is immediately adjacent to a side edge surface.
- the edge of the strip is laminated with a temperature-stable adhesive tape (e.g. made of polyimide) before (or alternatively after) painting.
- a temperature-stable adhesive tape e.g. made of polyimide
- lacquer In comparison with the state of the art, a large area of the expensive plastic layer can be replaced by lacquer without the electrical insulation effect at the edge of the strip being impaired.
- This in 1 illustrated cable strip 1 comprises a strip-shaped electrical conductor 2, which has an upper cover surface 2a and a lower cover surface 2b, two side edge surfaces 2c and each end has a front edge surface, not shown. Furthermore, the cable strip 1 according to the invention comprises an electrical insulation 3 which is applied to at least one side of the strip 1--in the illustrated embodiment to both the lower cover surface 2b and the upper cover surface 2a.
- the insulation comprises a lacquer layer 3a and an adhesive foil tape 3b, which is made of plastic and is glued to the lower cover surface 2b and/or the upper cover surface 2a of the strip-shaped electrical conductor 2, at least in each case in an area 4 that is directly adjacent to a Side edge surface 2c adjacent.
- the film adhesive tape 3b has a projection 5 in relation to the side edge surface 2c of the strip-shaped electrical conductor 1, as a result of which leakage currents can be prevented.
- the overhang 5 can preferably have a length L in the range 0 cm ⁇ L ⁇ 5 cm.
- the electrical conductor 2 in the form of a strip can in particular consist of aluminum or an aluminum alloy and preferably have a thickness D in the range from 0.1 mm to 1.5 mm.
- the paint of the paint layer 3a which can be applied by immersion, such as electro-dip painting, by brushing, rolling, spinning, spraying, in particular in a continuous belt process, and is then cured, causes at least the lower cover surface 2b and/or the upper Top surface 2a are sufficiently electrically isolated.
- the lacquer layer 3a can be formed from a lacquer based on organic polymers, such as an acrylic, epoxy, polyester, polyamide or fluoropolymer lacquer, or based on sol-gel compositions, in particular from a wire lacquer, such as a THEIC-modified polyesterimide. It can preferably have a thickness DL in the range from 5 ⁇ m to 50 ⁇ m. As shown, this thickness DL can also be smaller in the area of the film adhesive tape 3b, in particular so that an even surface O of the insulation 3 is produced.
- the film adhesive tape 3b can preferably have a thickness DK in the range from 3 ⁇ m to 20 ⁇ m, this thickness DK preferably being at least half as large as the thickness DL of the paint layer 3a in the area where there is no film adhesive tape 3b.
- the region 4, which directly adjoins the side edge surface 2c of the strip-shaped electrical conductor 2, can have a width B in the range from 0.2 cm to 4.5 cm, preferably in the range from 0.5 to 1.5 cm.
- the film adhesive tape 3b is only applied on one side with the overhang 5, and the lacquer layer 3a runs out on the film adhesive tape 3b like a meniscus and ends in front of the overhang 5.
- the lower cover surface 2b and the respective adjacent side edge surface 2c are provided with the lacquer layer 3a, the Lacquer layer 3a at the transition to the side edge surface 2c and can have such a thickness DL on this, which in itself is not sufficient for the required electrical insulation.
- top surface 2b and the side edge surface 2c each have no electrical insulation and in particular no lacquer layer 3a.
- FIG 5 a variant is shown in which the film adhesive tape 3b is glued in a C-shape starting from the two cover surfaces 2a, 2b around the side edge surface 2c with a cover section 3c.
- the lacquer layer 3a ends like a meniscus on the film adhesive tape 3b before the start of the cover section 3c.
- lacquer layer 3a is only applied on one side to the upper cover surface 2a and to the film adhesive tape 3b up to the beginning of the cover section 3c.
- the electrical conductor 2 has a reduced strip thickness D 1 in the area in front of its side edge surface 2c in comparison to the strip thickness D in the remaining strip area.
- the tape thickness reduction in the area of the cover surfaces 2a, 2b is the same and is less than/equal to the thickness DK of the film adhesive tape 3b.
- the lacquer layer 3a runs continuously up to the cover section 3c.
- the embodiment shows only one possibility of lamination with the film adhesive tape 3b.
- an adhesive strip 3b can also be placed around the edge surface 2c, or the lacquer layer 3a could be located under the foil adhesive tape 3b.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017107328.0A DE102017107328A1 (de) | 2017-04-05 | 2017-04-05 | Elektroisoliertes elektrisches Leiterband, insbesondere für Elektromotoren und Transformatoren |
PCT/EP2018/056831 WO2018184823A1 (de) | 2017-04-05 | 2018-03-19 | Elektroisoliertes elektrisches leitungsband, insbesondere für elektromotoren und transformatoren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3607569A1 EP3607569A1 (de) | 2020-02-12 |
EP3607569B1 true EP3607569B1 (de) | 2022-09-07 |
Family
ID=61899173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18715509.8A Active EP3607569B1 (de) | 2017-04-05 | 2018-03-19 | Elektroisoliertes elektrisches leitungsband, insbesondere für elektromotoren und transformatoren |
Country Status (6)
Country | Link |
---|---|
US (1) | US10957464B2 (pl) |
EP (1) | EP3607569B1 (pl) |
DE (1) | DE102017107328A1 (pl) |
ES (1) | ES2931531T3 (pl) |
PL (1) | PL3607569T3 (pl) |
WO (1) | WO2018184823A1 (pl) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202018105660U1 (de) * | 2018-10-02 | 2020-01-07 | Alanod Gmbh & Co. Kg | Elektroisoliertes elektrisches Leitungsband, insbesondere für Elektromotoren und Transformatoren |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB900519A (en) * | 1957-07-08 | 1962-07-04 | Eisler Paul | Electric conductor strips |
CN101894620A (zh) * | 2010-07-28 | 2010-11-24 | 江苏豪威富电气股份有限公司 | 结构改进的自粘性云母带绕包线 |
EP3109873A1 (en) * | 2014-02-17 | 2016-12-28 | Eaton Corporation | Inductor coil and electromagnetic component |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1765866A1 (de) | 1968-07-30 | 1971-10-28 | Felten & Guilleaume Carlswerk | Isolierter elektrischer Bandleiter,insbesondere lackisolierter Bandleiter |
FR2474397A1 (fr) * | 1979-12-13 | 1981-07-31 | Magna Ply Cy | Structure allongee et revetue, methode et dispositif pour revetir en spirale, une ame allongee, d'un moyen de revetement en bande |
US5281488A (en) * | 1992-09-15 | 1994-01-25 | Poulsen Peder Ulrik | Foil strip conductor |
AU2002364343A1 (en) * | 2001-12-29 | 2003-07-30 | Technip France | Heated windable rigid duct for transporting fluids, particularly hydrocarbons |
JP4475470B2 (ja) * | 2007-04-05 | 2010-06-09 | 三菱電機株式会社 | 回転電機のコイル部の絶縁構造 |
JP5892337B2 (ja) * | 2012-11-01 | 2016-03-23 | 株式会社オートネットワーク技術研究所 | リアクトル、コンバータ、及び電力変換装置 |
WO2015130692A2 (en) * | 2014-02-25 | 2015-09-03 | Essex Group, Inc. | Insulated winding wire containing semi-conductive layers |
JP2016103398A (ja) * | 2014-11-28 | 2016-06-02 | 住友電気工業株式会社 | シールドケーブル |
DE102014119720A1 (de) * | 2014-12-30 | 2016-06-30 | Lisa Dräxlmaier GmbH | Isolierter Flachleiter und Flachleiterverbund |
-
2017
- 2017-04-05 DE DE102017107328.0A patent/DE102017107328A1/de not_active Withdrawn
-
2018
- 2018-03-19 EP EP18715509.8A patent/EP3607569B1/de active Active
- 2018-03-19 ES ES18715509T patent/ES2931531T3/es active Active
- 2018-03-19 WO PCT/EP2018/056831 patent/WO2018184823A1/de active Search and Examination
- 2018-03-19 PL PL18715509.8T patent/PL3607569T3/pl unknown
- 2018-03-19 US US16/500,917 patent/US10957464B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB900519A (en) * | 1957-07-08 | 1962-07-04 | Eisler Paul | Electric conductor strips |
CN101894620A (zh) * | 2010-07-28 | 2010-11-24 | 江苏豪威富电气股份有限公司 | 结构改进的自粘性云母带绕包线 |
EP3109873A1 (en) * | 2014-02-17 | 2016-12-28 | Eaton Corporation | Inductor coil and electromagnetic component |
Also Published As
Publication number | Publication date |
---|---|
EP3607569A1 (de) | 2020-02-12 |
PL3607569T3 (pl) | 2023-02-20 |
US20200118707A1 (en) | 2020-04-16 |
WO2018184823A1 (de) | 2018-10-11 |
US10957464B2 (en) | 2021-03-23 |
ES2931531T3 (es) | 2022-12-30 |
DE102017107328A1 (de) | 2018-10-11 |
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