ES254017A1 - Method of impregnating and covering electric windings - Google Patents
Method of impregnating and covering electric windingsInfo
- Publication number
- ES254017A1 ES254017A1 ES0254017A ES254017A ES254017A1 ES 254017 A1 ES254017 A1 ES 254017A1 ES 0254017 A ES0254017 A ES 0254017A ES 254017 A ES254017 A ES 254017A ES 254017 A1 ES254017 A1 ES 254017A1
- Authority
- ES
- Spain
- Prior art keywords
- resin
- epoxy
- mould
- epoxy resin
- parts
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title 1
- 239000003822 epoxy resin Substances 0.000 abstract 4
- 229920000647 polyepoxide Polymers 0.000 abstract 4
- 239000011347 resin Substances 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- 239000004593 Epoxy Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000004848 polyfunctional curative Substances 0.000 abstract 2
- 239000000057 synthetic resin Substances 0.000 abstract 2
- 229920003002 synthetic resin Polymers 0.000 abstract 2
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 abstract 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000009750 centrifugal casting Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 235000012054 meals Nutrition 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- 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
- H01F41/005—Impregnating or encapsulating
-
- 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
- H01F41/04—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 for manufacturing coils
- H01F41/12—Insulating of windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Abstract
In an example the following compositions are used for (a) impregnating and (b) coating electrical windings-(a) 100 p.b.w. of product of condensation of 4:41-dihydroxydiphenyldimethyl methane and epichlorhydrin in presence of alkali (4,6 epoxy equivalents per kg.) and 65 p.b.w. of a hardener comprising a mixture of 35 p.b.w. of phthalic anhydride and 65 p.b.w. of tetrahydrophthalic anhydride: (b) 100 parts epoxy resin, 30 parts of the same hardener, and 200 parts quartz meal, the epoxy resin in (b) having 2,3 to 2,6 epoxy equivalents per kg. The epoxy resin of (a) and the composition (b) were degassed at reduced pressure.ALSO:Electrical windings (such as transformer windings and wound capacitors) are impregnated with a hardenable synthetic resin e.g. an epoxy resin at a temperature at which the resin is in the liquid state, cooled until the unhardened resin adhering to the external surface has a viscous or paste-like consistency, the excess resin is removed, and the impregnated winding is provided with an outer covering of a hardenable synthetic resin containing a filler in a mould and the resin is hardened. The impregnation may be carried out in a mould or by centrifugal casting, and if performed in a mould may be assisted by vacuum and/or applied pressure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH6702558A CH375434A (en) | 1958-12-08 | 1958-12-08 | Process for impregnating and encapsulating electrical windings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES254017A1 true ES254017A1 (en) | 1960-05-16 |
Family
ID=4527607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0254017A Expired ES254017A1 (en) | 1958-12-08 | 1959-12-07 | Method of impregnating and covering electric windings |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH375434A (en) |
| DE (1) | DE1263928B (en) |
| DK (1) | DK104109C (en) |
| ES (1) | ES254017A1 (en) |
| GB (1) | GB920656A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022491B2 (en) * | 1980-11-12 | 1985-06-03 | 三菱電機株式会社 | Manufacturing method of molded coil |
| DE102020111333B4 (en) | 2020-04-27 | 2025-03-13 | Audi Aktiengesellschaft | Method for casting an FSM rotor and FSM rotor with hybrid rotor casting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE929686C (en) * | 1949-09-23 | 1955-06-30 | Siemens Ag | Process for the watering of coils or coil windings of electrical machines and apparatus with substances that are subsequently hardened during the watering process |
| DE966274C (en) * | 1950-12-02 | 1957-07-18 | Siemens Ag | Method for soaking and embedding coils or the like. |
-
1958
- 1958-12-08 CH CH6702558A patent/CH375434A/en unknown
-
1959
- 1959-11-14 DK DK410259A patent/DK104109C/en active
- 1959-12-07 ES ES0254017A patent/ES254017A1/en not_active Expired
- 1959-12-07 DE DE1959C0020305 patent/DE1263928B/en active Pending
- 1959-12-08 GB GB4179159A patent/GB920656A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1263928B (en) | 1968-03-21 |
| GB920656A (en) | 1963-03-13 |
| CH375434A (en) | 1964-02-29 |
| DK104109C (en) | 1966-04-04 |
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