Method of producing an electric motor
An electric motor, in particular a stepper motor, comprises a first rigid component having a recess and a second rigid component having a protrusion. The protrusion is at least partially oversized relative to the recess before assembling the first and second component. For the assembly the protrusion is pressed into the recess with a predetermined pressure for forming a rigid connection between the first component and the second component.
1. A method of producing an electric motor, the method comprising the steps of:
producing a first rigid stator component, with at least one first recess;
producing a second rigid stator component, with at least one first protrusion being at least partially oversized relative to the first recess;
pressing the first protrusion into the first recess with a predetermined pressure for forming a rigid connection between the first and second stator component;
producing a third rigid stator component, with at least one second recess;
producing a fourth rigid stator component, with at least one second protrusion being at least partially oversized relative to the second recess; and
pressing the second protrusion into the second recess with the predetermined pressure for forming a rigid connection between the third and fourth component.
2. The method of claim 1 , wherein
the first rigid component is produced with at least one third recess and
the third rigid stator component is produced with a third protrusion which is at least partially oversized relative to the third recess and which is pressed into the third recess with the predetermined pressure for forming a rigid connection between the first and third stator component.
3. The method of claim 1 , wherein
the first rigid stator component has a first plurality of bent tongues, the first recess being formed in one of the first plurality of bent tongues; and
wherein the third rigid stator component has a second plurality of bent tongues, the second recess being formed in one of the second plurality of tongues.
4. The method of claim 3 , wherein the first plurality of tongues and the second plurality of tongues are bent substantially ninety degrees.
5. A method of producing an electric motor, the method comprising the steps of:
producing a first rigid stator component, with at least one first recess;
producing a second rigid stator component, with at least one first protrusion being at least partially oversized relative to the first recess;
pressing the first protrusion into the first recess with a predetermined pressure for forming a rigid connection between the first and second stator component; and
driving a pin with an end tapering off at least partially into the first protrusion for reinforcing the rigid connection.
6. The method of claim 5 , wherein the at least one first recess is formed in the shape of a hole.