EP4588077A1 - Formulierung für ein isolationssystem, verwendung dazu und formkörper - Google Patents
Formulierung für ein isolationssystem, verwendung dazu und formkörperInfo
- Publication number
- EP4588077A1 EP4588077A1 EP23797684.0A EP23797684A EP4588077A1 EP 4588077 A1 EP4588077 A1 EP 4588077A1 EP 23797684 A EP23797684 A EP 23797684A EP 4588077 A1 EP4588077 A1 EP 4588077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- formulation according
- formulation
- insulation
- pfts
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/301—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen or carbon in the main chain of the macromolecule, not provided for in group H01B3/302
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/302—Polyurethanes or polythiourethanes; Polyurea or polythiourea
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/307—Other macromolecular compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/427—Polyethers
Definitions
- Electrical machines for drive systems in general are equipped with a stator, as in motors and generators in the medium and high voltage range, and comprise electrical conductors, main insulation, conductor insulation, such as wire insulation with partial conductor insulation, and stator core.
- the main insulation serves the purpose of electrically isolating the phases from each other, from the earthed stator core, and from the environment.
- a wound insulation system includes not only surface insulation materials and/or insulation tapes, but also impregnating resin.
- the surface insulation materials - which form the slot lining and/or the insulation tapes, for example - are based on mica and glass, but also mainly on mAramid and/or polyimide due to a wide variety of requirements.
- Duromers with polyesterimide and/or silicone are usually used as impregnating resin in traction motors because of the high thermal class resulting from the low processing temperature.
- Epoxies are usually used in industrial high-voltage motors.
- duromer wire enamels are commercially available for conductor insulation and have been optimized with regard to TE resistance.
- the structure of a hairpin stator differs from conventional stators only in the type of winding system - the other components of the stator remain largely unchanged.
- the windings in the form of insulated winding wire are implemented in the hairpin stator using plug-in coils.
- Casting is carried out with a liquid formulation without solvents, whereby the base resin, in contrast to the formulation which is used as a powder coating, is present as a liquid under normal conditions.
- normal conditions a particularly relevant aspect with regard to processing conditions and storage stability - refers to 25 °C room temperature, ambient air and normal pressure.
- the general finding of the invention is that in a formulation for a casting, as a fluidized bed powder, as a powder coating and/or for a wet coating for producing an electrical insulation system and/or an insulating coating, the incorporation of solid and polymeric plastic filler particles with a high relative temperature index, polymer filler with a high relative temperature index "PET" brings advantages with regard to thermomechanical stability and in particular with regard to temperature stability.
- the duromer uncross-linked synthetic resin in the formulation comprises compounds such as bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, novolak, aliphatic epoxy resin and/or aromatic epoxy resin.
- the base resin can also be liquid under normal conditions; when used as a powder paint it is a powder, i.e. a solid.
- component A can also contain an accelerator in small quantities, e.g. in the range of 0.3 to 2% by weight.
- Accelerators for this application are known to the person skilled in the art; for example, urea such as dimethylurea, 1,l-dimethyl-3-phenylurea, toluyl-bis-1,1-dimethylurea, 3-(3-trifluoromethylphenyl)-1,1-dimethylurea, 2-phenylimidazole and/or benzyldimethylamine can be used as accelerators.
- Powder coating can also be used to particular advantage in the insulation of individual rods using hairpin, wave winding and/or plug-in coil technology.
- Individual rods can be coated with powder coating, e.g. automatically. in an assembly line process, coated or sprayed, which are then subjected to thermal and/or UV curing.
- a wet paint As a wet paint, the formulation is dissolved in a solvent. Suitable solvents include: acetone, isopropanol, ethyl ester, methyl ethyl ketone, butyl acetate in any mixture and/or combination. A common thixotropic agent may also be added to the wet paint.
- At least one particle fraction with an average grain size d50 in the range from 500 nm to 300 pm, in particular from 1 pm to 200 pm and for example in the range from 2 to 100 pm, for example between 2.5 pm and 10 pm.
- component B contains a multimodal mixture of particles of different grain sizes, so that coarser and finer fractions complement each other, particularly with regard to the mechanical properties when processing the formulation. It is known that smaller particle fractions can act like ball bearings for coarser particles with regard to the flowability of the formulation.
- the PFTs of component B can - depending on requirements - be amorphous, semi-crystalline, with crystalline parts, or in any mixture of the aforementioned modifications in the formulation. Parts or all of the PFTs of component B can also be reinforced, in particular fiber-reinforced. All types of non-electrically conductive fillers can be used. Materials may be incorporated, for example aramid fibre-reinforced or glass fibre-reinforced thermoplastic particles may be contained in component B.
- the PFTs include, for example, polymeric solid filler particles made of materials such as high-performance plastics - preferably with a relative temperature index greater than 190°C and preferably greater than 200°C - such as:
- thermoplastic polyimides - TPI- see also structural formulas I to III, polyetherimide - PEI-, polybenzimidazole -PBI-, thermoplastic silicone, in the form of solid polymer filler particles after appropriate frost treatment, polyamideimide -PAI-, polyether ketones such as e.g.
- R can be alkyl, aryl, O,S-alkyl, O,S-aryl, N,P-aryl, N,P-alkyl with any functional groups, such as acid groups, ester groups, ether groups, etc.
- thermoplastic high-performance plastics with the above-mentioned structural formulas I to III can, for example, have glass transition temperatures Tgs of up to 350 °C.
- Thermoplastic high-performance polymers such as PET, for example, can be present in pure form but also in any blends and/or copolymers in PFTs of component B.
- Component B includes, for example, various particle fractions, each containing different high-performance plastics.
- PFTs of component B may be coated or uncoated.
- PFTs of component B are surface-treated, whereby chemical and/or physical functionalization of the surface with regard to better bonding to the duromeric resin represents one possibility for surface treatment.
- component B comprises at least one particle fraction of PFTs having fiber-reinforced particles.
- the formulation may contain other fillers such as quartz powder, fused silica, mica, siloxane alone or in any mixture.
- the formulation may also contain the usual additives for potting, powder coating or wet coating, such as flow agents, degassers and any other well-known additives for electrical insulation systems.
- Filler 2 Siloxane-polyimide copolymer 10%
- Polymeric filler with high temperature index "PFT” Polyimide, structural formula II 20% Additive: Flow agent 1%
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22203336 | 2022-10-24 | ||
| EP22206022.0A EP4362048A1 (de) | 2022-10-24 | 2022-11-08 | Formulierung für ein isolationssystem, verwendung dazu und formkörper |
| PCT/EP2023/078988 WO2024088848A1 (de) | 2022-10-24 | 2023-10-18 | Formulierung für ein isolationssystem, verwendung dazu und formkörper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4588077A1 true EP4588077A1 (de) | 2025-07-23 |
Family
ID=88585016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23797684.0A Pending EP4588077A1 (de) | 2022-10-24 | 2023-10-18 | Formulierung für ein isolationssystem, verwendung dazu und formkörper |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4588077A1 (de) |
| CN (1) | CN120113015A (de) |
| WO (1) | WO2024088848A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012158292A1 (en) * | 2011-05-13 | 2012-11-22 | Dow Global Technologies Llc | Insulation formulations |
| CN104513485B (zh) * | 2014-12-29 | 2017-01-18 | 苏州大学 | 碳纳米管/聚醚酰亚胺/热固性树脂介电复合材料及制备方法 |
| CN111344351B (zh) * | 2018-02-01 | 2024-02-09 | 三井金属矿业株式会社 | 树脂组合物、带树脂铜箔、介电层、覆铜层叠板、电容器元件以及内置电容器的印刷电路板 |
| KR20210089704A (ko) * | 2018-11-08 | 2021-07-16 | 에스에이치피피 글로벌 테크놀러지스 비.브이. | 열가소성 조성물, 전기 와이어 및 전기 와이어를 포함하는 물품 |
| EP4047625A1 (de) * | 2021-02-22 | 2022-08-24 | Siemens Aktiengesellschaft | Isolationssystem für elektrische rotierende maschinen, verwendung eines materialgemisches und elektrische rotierende maschine |
-
2023
- 2023-10-18 CN CN202380075059.4A patent/CN120113015A/zh active Pending
- 2023-10-18 WO PCT/EP2023/078988 patent/WO2024088848A1/de not_active Ceased
- 2023-10-18 EP EP23797684.0A patent/EP4588077A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN120113015A (zh) | 2025-06-06 |
| WO2024088848A1 (de) | 2024-05-02 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20250415 |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS MOBILITY GMBH |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |