• 专利标题:   Method for inserting electrical conductor assembly into slot of stator or rotor of electrical machine, involves encasing multiple conductor elements with thermoset, and connecting conductor elements encased with thermoset in partially cross-linked state together to form composite.
  • 专利号:   DE102021210974-A1, WO2023052116-A1
  • 发明人:   KOEHNE M, MUSIALEK M, HUELDER G, VOLLMER U
  • 专利权人:   BOSCH LLC ROBERT, BOSCH GMBH ROBERT
  • 国际专利分类:   H02K015/085, H02K015/09, H02K015/10, H02K015/12, H02K003/30, H02K003/34, H01B001/04, H01B003/30, H02K003/02
  • 专利详细信息:   DE102021210974-A1 30 Mar 2023 H02K-015/10 202328 German
  • 申请详细信息:   DE102021210974-A1 DE10210974 30 Sep 2021
  • 优先权号:   DE10210974

▎ 摘  要

NOVELTY - The method involves encasing multiple individual conductor elements (5) with a thermoset (6) that is partially cross-linked after completing encapsulation process. The conductor elements encased with the thermoset in a partially cross-linked state are connected together to form a composite. The thermoset is thermally fully cross-linked to form an insulation unit of an electrical conductor assembly. The insulation unit is formed in such a way that the electrical conductor assembly is designed to be rigid, where the thermoset is provided with thermolatent catalyst consisting of boron trifluoride with amines, monoethylamine, quaternary phosphonium compound and/or a dicyandiamide, and the thermoset is formed from a resin system that contains resin based on tetraglycidyldiaminodiphenylmethane and/or epoxy resin, a hardener based on microencapsulated imidazole and/or diaminodiphenylsulfone. The conductor elements are made of carbon nanotubes and/or graphene plates. USE - Method for inserting an electrical conductor assembly into a slot of a stator or a rotor of an electrical machine i.e. electric drive unit for motor vehicles (claimed). ADVANTAGE - The method enables allowing electrical conductor assembly to be fixed as a rigid composite in a required position after full thermal crosslinking function of the thermoset, thus avoiding requirement for thermal treatment at temperatures of up to 3000 degrees Celsius, and hence reducing the manufacturing cost of the electrical conductor assembly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for electrical machine. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an electrical conductor assembly. 5Conductor elements 6Thermoset