Electrical machine, in particular for a vehicle

US12261495B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• John Cunningham · Roanoke, US
• Philip Grabherr · Stuttgart, DE
• Ian Webb · Smestow, GB
• Tim Male · Telford, GB
• Stojan Markic · Kojsko, SI
• Graham Sentance · Stanford Bridge, GB
• Peter Sever · Murska Sobota, SI
• Josef Sonntag · Atzlenbach, DE
• Jon Witcombe · Telford, GB

Key dates

• Filing date: Jun 3, 2020
• Grant date: Mar 25, 2025
• Expiry date: Feb 7, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K9/197
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electrical machine includes a rotor, which can be rotated about an axis of rotation, with which an axial direction is defined, and a stator having stator windings, a coolant distribution chamber and a coolant collecting chamber arranged axially at a distance thereto, the coolant distribution chamber fluidically communicates with the coolant collecting chamber for cooling the stator windings, a cooling duct and a stator winding are embedded in an electrically insulating plastic for thermal coupling, the stator has stator teeth which extend along the axial direction, are spaced apart from each other along a circumferential direction and bear the stator windings, the electrically insulating plastic is arranged together with the cooling duct and the stator winding in an intermediate space, and the electrically insulating plastic is formed by a first plastic mass of a first plastic material and by a second plastic mass of a second plastic material.