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US 12,580,437 B2Granted
Powder coating formulation for an insulation system of an electric machine
AssigneeInnomotics GmbH
InventorsSteffen Lang, Marek Maleika, Jürgen Huber, Lisa Sponsel
Life of this patent
Estimating the term…
Abstract
Various applications of the teachings of the present disclosure include a powder coating formulation suitable for producing an insulation system of an electrical machine. The formulation may include: a curable resin mixture; and spherical SiO2 filler particles having a maximum particle diameter of 100 μm.
Claims13
A powder coating formulation suitable for producing an insulation system of an electrical machine, the formulation comprising:
- a curable resin mixture;
- and
- spherical SiO2 filler particles having a maximum particle diameter of 100 μm;
- wherein the spherical SiO2 filler particles are present with a mass fraction of between 5 wt % and 65 wt % based on the total mass of the powder coating formulation;
- wherein the resin mixture is solid at room temperature and comprises:
- a monomeric and/or oligomeric blend;
- an epoxidized novolac blend with bisphenol A and/or bisphenol F diglycidyl etherb;
- a chain-extended bisphenol A and/or F;
- a diepoxidic or higher polyepoxidic carbon-based resin component;
- and/or
- a monomeric and/or oligomeric resin blend based on alkyl- and/or aryl-polysiloxane;
- and
- at least one further resin component comprising two or more glycidyl ester and/or glycidyl ether and/or hydroxyl functionalities;
- and/or
- at least one compound acting as curing agent and based on dicyandiamide and/or on (poly)amine and/or on amino-functional and/or alkoxy-functional alkyl-/aryl-polysiloxane.
12 more elements
An electrical machine comprising:
- a conductor;
- and
- an insulation system comprising a resin mixture filled with spherical SiO2 particles having a maximum particle diameter of 100 μm;
- wherein the spherical SiO2 filler particles are present with a mass fraction of between 5 wt % and 65 wt % based on the total mass of the powder coating formulation;
- wherein the resin mixture is solid at room temperature and comprises:
- a monomeric and/or oligomeric blend;
- an epoxidized novolac blend with bisphenol A and/or bisphenol F diglycidyl etherb;
- a chain-extended bisphenol A and/or F;
- a diepoxidic or higher polyepoxidic carbon-based resin component;
- and/or
- a monomeric and/or oligomeric resin blend based on alkyl- and/or aryl-polysiloxane;
- and
- at least one further resin component comprising two or more glycidyl ester and/or glycidyl ether and/or hydroxyl functionalities;
- and/or
- at least one compound acting as curing agent and based on dicyandiamide and/or on (poly)amine and/or on amino-functional and/or alkoxy-functional alkyl-/aryl-polysiloxane.
12 more elements
A method for producing an insulation system of an electrical machine, the method comprising:
- coating insulation components with a powder coating formulation including a curable resin mixture filled with spherical SiO2 particles having a maximum particle diameter of 100 μm;
- and
- curing the formulation;
- wherein the spherical SiO2 filler particles are present with a mass fraction of between 5 wt % and 65 wt % based on the total mass of the powder coating formulation;
- wherein the resin mixture is solid at room temperature and comprises:
- a monomeric and/or oligomeric blend;
- an epoxidized novolac blend with bisphenol A and/or bisphenol F diglycidyl etherb;
- a chain-extended bisphenol A and/or F;
- a diepoxidic or higher polyepoxidic carbon-based resin component;
- and/or
- a monomeric and/or oligomeric resin blend based on alkyl- and/or aryl-polysiloxane;
- and
- at least one further resin component comprising two or more glycidyl ester and/or glycidyl ether and/or hydroxyl functionalities;
- and/or
- at least one compound acting as curing agent and based on dicyandiamide and/or on (poly)amine and/or on amino-functional and/or alkoxy-functional alkyl-/aryl-polysiloxane.
12 more elements
Dependencies are inferred from the claim text.