Electrical machine and vehicle transmission

An electrical machine (1) comprising:

• a housing (2),
• a stator (3) being arranged in a rotationally fixed manner in the housing (2),
• a rotor (4) mounted to rotate in the housing (2),
• a degree of freedom, in a radial direction, being provided between the housing (2) and the stator (3) to permit material-related different thermal expansion, in the radial direction between the housing (2) and the stator (3),
• the stator (3) being held in the housing (2) and aligned concentrically with the rotor (4) by interlocking connection elements (5) throughout a temperature range encountered during use, and
• the interlocking connection elements (5) being formed and arranged such that the housing (2) can expand and contract, relative to the stator (3), in a stress-free manner.

A vehicle transmission with a transmission housing and with an electrical machine (1) comprising:

• an electrical machine housing (2),
• a stator (3) being arranged in a rotationally fixed manner in the electrical machine housing (2),
• a rotor (4) being rotatably mounted in the electrical machine housing (2),
• a degree of freedom, in a radial direction, being provided between the electrical machine housing (2) and the stator (3) to permit material-related different thermal expansions, in the radial direction, between the electrical machine housing (2) and the stator (3), and
• the stator (3) being held in the electrical machine housing (2) and aligned concentrically with the rotor (4), throughout a temperature range encountered during use, by interlocking connection elements (5),
• the interlocking connection elements (5) being formed and arranged such that, relative to the stator (3), the electrical machine housing (2) can expand and contract in a stress-free manner, and
• the transmission housing also being, at the same time, the electrical machine housing (2).

An electrical machine comprising:

• a housing,
• a stator being arranged in a rotationally fixed manner within the housing;
• a rotor being mounted to the housing to rotate about a main axis of the electrical motor;
• a plurality of interlocking connection elements connecting the stator to the housing such that the stator being rotationally fixed relative to the housing,
• the plurality of interlocking connection elements being formed and arranged to provide a degree of freedom, in a radial direction between the housing and the stator to facilitate, throughout a temperature range encountered during operation of the electric machine, and
• material-related different thermal expansions, in the radial direction between the housing and the stator, retaining the stator within the housing aligned concentrically with the rotor such that the housing can expand and contract, relative to the stator, in a stress-free manner.