Electric machine, in particular for a motor vehicle, method for producing such an electric machine and method for operating such an electric machine
AssigneeMercedes-Benz Group AG
InventorsMichael SAUR, Maximilian HEPP, Jörg WEIGOLD, Alexander NISCH
Life of this patent
Estimating the term…
Abstract
An electric machine includes at least one winding that can create a magnetic field and a sensor device to detect the magnetic field. The sensor device has at least one circuit board with several circuit board regions, at least partially spaced apart from each other in the circumferential direction of the electric machine. Respective longitudinal regions of the winding are arranged between the several circuit board regions. Magnetic field sensors are held on the circuit board and detect the magnetic field.
Claims11
1-12. (canceled)
An electric machine comprising:
- at least one winding configured to create a magnetic field;
- a laminated core bearing the at least one winding;
- a sensor device configured to detect the magnetic field, wherein the sensor device comprises
- a circuit board having several circuit board regions, wherein the several circuit board regions are at least partially spaced apart from each other in a circumferential direction of the electric machine, and wherein respective longitudinal regions of the winding are arranged between the several circuit board regions;
- and
- magnetic field sensors fixed on the circuit board and configured to detect the magnetic field,
- wherein the circuit board is arranged on an axial end face of the laminated core,
- wherein the several circuit board regions are teeth protruding inwards in a radial direction of the electric machine from a base region of the circuit board, common to the teeth, and end inwards in the radial direction of the electric machine at a respective free end of the respective tooth, opposite to the base region,
- wherein the base region is circular or circular-segment-shaped on a side facing away from the teeth and pointing outwards in the radial direction of the electric machine, and
- wherein the circuit board is inserted from an outside inwards between the longitudinal regions in the radial direction of the electric machine.
A method for producing an electric machine, in which the electric machine comprises at least one winding configured to create a magnetic field can be created, and at least one sensor device configured to detect the magnetic field, the method comprising:
- producing a laminated core and affixing the at least one winding to the laminated core;
- producing the sensor device from
- a circuit board having several circuit board regions, wherein the several circuit board regions are at least partially spaced apart from each other in a circumferential direction of the electric machine, and wherein respective longitudinal regions of the winding are arranged between the several circuit board regions;
- and
- magnetic field sensors fixed on the circuit board and configured to detect the magnetic field;
- and
- arranging the circuit board on an axial end face of the laminated core,
- wherein the several circuit board regions are teeth protruding inwards in a radial direction of the electric machine from a base region of the circuit board, common to the teeth, and end inwards in the radial direction of the electric machine at a respective free end of the respective tooth, opposite to the base region,
- wherein the base region is circular or circular-segment-shaped on a side facing away from the teeth and pointing outwards in the radial direction of the electric machine, and
- wherein the circuit board is inserted from an outside inwards between the longitudinal regions in the radial direction of the electric machine.
Dependencies are inferred from the claim text.