Axial flux motor
An axial flux motor is disclosed, with at least one rotor, with at least one stator that has a stator yoke and at least one stator tooth made of a soft magnetic powdered material, which stator tooth has a tooth neck and a tooth head that adjoins the tooth neck and constitutes the pole face of the stator tooth, and with a fastening means that comprises at least one mechanical connecting element, which connecting element fastens the stator tooth to the axial flux motor. In order to embody this in a durable way, it is proposed for the stator tooth to have a fastening opening, which, starting from the pole face of the stator tooth, passes through its tooth head and tooth neck, with the mechanical connecting element being accommodated in the fastening opening in countersunk fashion relative to the pole face.
1. An axial flux motor, comprising:
at least one rotor;
at least one stator that has a stator yoke;
at least one stator tooth made of a soft magnetic powdered material, which stator tooth has a tooth neck and a tooth head that adjoins the tooth neck and constitutes a pole face of the stator tooth; and
a fastening device that comprises at least one mechanical connecting element that fastens the stator tooth to the axial flux motor;
wherein the stator tooth has a fastening opening, which, starting from the pole face of the stator tooth, passes through its tooth head and tooth neck, with the mechanical connecting element being accommodated in the fastening opening in countersunk fashion relative to the pole face.
2. The axial flux motor according to claim 1 , wherein the axial flux motor has a housing and the connecting element is fastened to the housing.
3. The axial flux motor according to claim 1 , wherein the stator yoke has a socket into which the tooth neck of the stator tooth is inserted.
4. The axial flux motor according to claim 3 , wherein the stator yoke has an axially extending socket.
5. The axial flux motor according to claim 3 , wherein the tooth neck of the stator tooth extends through the socket that passes through the stator yoke.
6. The axial flux motor according to claim 1 , wherein the stator tooth consists of SMC.
7. The axial flux motor according to claim 1 , wherein the stator yoke is composed of a laminated core.
8. The axial flux motor according to claim 1 , wherein the mechanical connecting element is a bolt.
9. The axial flux motor according to claim 8 , wherein the bolt is a waisted-shank bolt.
10. The axial flux motor according to claim 1 , wherein the fastening opening has a hole and a recess that adjoins the hole and the pole face of the tooth head, which recess has a cross-sectional area that is larger than that of the hole.
11. The axial flux motor according to claim 10 , wherein a shaft of the mechanical connecting element protrudes through the hole, and the recess accommodates a head of the mechanical connecting element.
12. The axial flux motor according to claim 1 , wherein the tooth head protrudes radially beyond the tooth neck.
13. The axial flux motor according to claim 1 , wherein at the pole face, the fastening opening is closed by a cap made of a soft magnetic powdered material.
14. The axial flux motor according to claim 1 , wherein the stator yoke has an open region, which, starting from a radial side of the stator yoke, extends to the stator tooth.
15. The axial flux motor according to claim 14 , wherein the stator yoke has a slot-shaped open region.
16. The axial flux motor according to claim 14 , wherein the open region extends radially.
17. The axial flux motor according to claim 14 , wherein the open region passes through the stator yoke.
18. The axial flux motor according to claim 1 , wherein the axial flux motor has a stator winding that winds around the tooth neck.