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US 2013/0230708 A1Published application
Insulation material preliminary product and insulation material
AssigneeABB AB
InventorsJörg NELGES, Jörg Bohnenberger
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Abstract
An exemplary sheetlike insulation material precursor and an exemplary insulation material are disclosed that can feature a particularly high thermal conductivity. The insulation material precursor can be characterized in that a layer of resin on each of two outer sides of a core laminate of interconnected polyester nonwovens and a polyester film is at the B-stage and has a weight fraction of at least 5% of boron nitride.
Claims18
An insulation material precursor, comprising:
- a sheetlike core layer laminate with at least the following interconnected layers:
- polyester nonwoven,
- polyester film, and
- polyester nonwoven;
- and
- a layer of resin on two outer sides of the core layer laminate, the resin being at a B-stage and having a weight fraction of at least 5% of boron nitride.
3 more elements
Method of producing an insulation material, comprising:
- providing an insulation material precursor having a sheet like core layer laminate with at least the following interconnected layers:
- polyester nonwoven,
- polyester film, and
- polyester nonwoven;
- and
- a layer of resin on two outer sides of the core layer laminate, the resin being at a B-stage and having a weight fraction of at least 5% of boron nitride;
- and
- temporarily heating the insulation material precursor to a baking temperature.
5 more elements
An electric motor, comprising:
- a hollow-cylindrical stator which extends along a line and which on an radial inner wall has a plurality of stator slots which are arranged predominantly parallel to the line, and in which sections of a conductor of an electrical stator winding of the electric motor are arranged;
- and
- sections which evelope the conductor by an insulation material having a sheet like core layer laminate with at least the following interconnected layers:
- polyester nonwoven,
- polyester film, and
- polyester nonwoven;
- and
- a layer of resin on two outer sides of the core layer laminate, the resin being at a B-stage and having a weight fraction of at least 5% of boron nitride
5 more elements
Dependencies are inferred from the claim text.