Axial flux motor intended for fixing to a machine and method for fixing the axial flux motor to a machine

Patent metadata

Field	Value
Publication number	US-9800101-B2
Application number	US-201514634437-A
Country	US
Kind code	B2
Filing date	Feb 27, 2015
Priority date	Sep 5, 2012
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

An axial flux motor intended for fixing to a machine comprises a stator stack as well as a rotor installed to rotate with respect to the stator stack, which rotor determines the axis of rotation. The stator stack comprises sectional slots on the side intersecting the axis of rotation, preferably the sectional slots include radial sectional slots or are radial sectional slots and/or there are 6-12 of them. Into each respective sectional slot a fixing part can be installed, which at least in the direction of the axis of rotation shape-locks into the sectional slot in question. The axial flux motor can be fixed to the machine by fixing at least some of the fixing parts to the machine.

First claim

The invention claimed is:

1. An axial flux motor comprising:
a rotor configured to rotate such that the rotor determines an axis of rotation; and
a stator stack including sectional slots on a side of the stator stack intersecting the axis of rotation, the sectional slots including between 6 and 12 radial sectional slots, the sectional slots configured to receive respective fixing parts installed therein, the fixing parts configured to shape-lock into a respective one of the sectional slots and the fixing parts including threaded holes therein such that the axial flux motor is configured to bolt to a machine via bolts inserted into the threaded holes of at least some of the fixing parts, wherein
the sectional slots and the fixing parts are shaped such that, when the fixing parts are inserted into respective ones of the sectional slots, the fixing parts do not protrude from a surface of the stator stack having the sectional slots thereon.

2. The axial flux motor according to claim 1 , wherein the fixing parts include bars, the bars each including at least one of the threaded holes configured to receive a respective one of the bolts.

3. The axial flux motor according to claim 1 , wherein the fixing parts are bent at one or both of its ends.

4. The axial flux motor according to claim 1 , wherein the fixing parts are weldable at one or both ends thereof to the stator stack.

5. The axial flux motor according to claim 1 , wherein the sectional slots are made by die cutting.

6. The axial flux motor according to claim 1 , wherein at least a part of the sectional slots has a dovetail cross-sectional shape.

7. The axial flux motor according to claim 1 , wherein the axial flux motor is attached to the machine via the fixing parts.

8. A method of fixing an axial flux motor to a machine, the method comprising:
forming sectional slots in a side of a stator stack of the axial flux motor, the side intersecting an axis of rotation of a rotor of the axial flux motor, the sectional slots including between 6 and 12 radial sectional slots;
installing fixing parts in respective ones of the sectional slots, the fixing parts including threaded holes therein, the fixing parts configured to shape-lock into the respective ones of the sectional slots at least in the direction of the axis of rotation; and
attaching the axial flux motor to the machine by bolting at least some of the fixing parts to the machine via bolts inserted into the threaded holes of at least some of the fixing parts, wherein
the sectional slots and the fixing parts are shaped such that, when the installing installs the fixing parts into respective ones of the sectional slots, the fixing parts do not protrude from a surface of the stator stack having the sectional slots thereon.

9. The method according to claim 8 , wherein the fixing parts include bars, the bars each including at least one of the threaded holes configured to receive a respective one of the bolts.

10. The method according to claim 8 , wherein the fixing parts are bent at one or both of its ends.

11. The method according to claim 8 , wherein the fixing parts are weldable at one or both ends to the stator stack.

12. The method according to claim 8 , wherein the sectional slots are made by die cutting teeth of the stator.

13. The method according to claim 8 , wherein at least a part of the sectional slots has a dovetail cross-sectional shape.

Assignees

• Tenhunen Asmo
• Huppunen Jussi
• Korhonen Tuukka
• Kone Corp

Inventors

• Tenhunen Asmo
• Huppunen Jussi
• Korhonen Tuukka

Classifications

• H02K1/182 Primary

  to stators axially facing the rotor, i.e. with axial or conical air gap · CPC title

• Y10T29/49009

  Dynamoelectric machine · CPC title

• H02K15/02

  of stator or rotor bodies · CPC title

• H02K15/028

  Fastening stator or rotor bodies to casings, supports, shafts or hubs · CPC title