JPWO2020058842A5

JPWO2020058842A5 -

Info

Publication number: JPWO2020058842A5
Application number: JP2021514021A
Authority: JP
Publication date: 2022-08-10

Claims

An apparatus (200) for deforming at least one conductor of a winding assembly (100) protruding from a side of a stator or rotor (114) of an electric machine, comprising:
at least one said winding assembly (100) comprising a plurality of ground conductors (102) comprising at least one leg inserted into a cavity (115) of a stator or rotor (114);
each of said plurality of base conductors (102) having at least one respective free end or termination (108, 110);
Said device (200) comprises at least one torsion matrix (202, 203) configured to rotate about an axis (X) so as to grip at least one free end (108, 110). at least one gripping element (204) configured and configured to be moved radially with respect to said axis (X);
Said device comprises at least one guide (206, 207) configured to guide at least one gripping element (204) along a radial direction with respect to axis (X) and a radial actuator (208) configured to move the at least one gripping element (204) along a radial direction.

2. The apparatus of claim 1, wherein said gripping element (204) comprises a seat or slot (226, 228) having an extension substantially parallel to the direction of said axis (X).

3. The apparatus of claim 1 or 2, wherein at least one gripping element (204) is configured to translate according to an axial direction parallel to the axis (X).

at least one said guide (206, 207) is fixed to a sleeve (241, 243);
4. The device of claim 1 to 3, wherein the sleeve is arranged to be connected to actuating means arranged to transmit rotational movement with respect to an axis (X) and translational movement along the direction of the axis (X). A device according to any one of claims 1 to 3.

5. Apparatus according to any one of the preceding claims, wherein the gripping elements of at least one torsion matrix (202, 203) are arranged to be moved radially.

6. Any of claims 1 to 5, wherein at least one gripping element (204) is configured to be moved radially with respect to said axis, towards and/or away from said axis (X). 10. The apparatus of paragraph 1.

comprising an inner torsion ring (202) and an outer torsion ring (203);
said inner torsion ring (202) and said outer torsion ring (203) both comprising at least one said gripping element (204) radially moveable with respect to said axis (X);
7. The device according to any of claims 1 to 6, wherein said device comprises an assembly comprising at least one guide (206, 207) and said radial actuator (208) dedicated to each torsion ring (202, 203). 10. The apparatus of paragraph 1.

comprising a plurality of torsion matrices (202, 203, 303);
each said torsion matrix (202, 203, 303) is formed by at least one said gripping element (204) radially movable with respect to said axis (X);
8. Apparatus according to any one of the preceding claims, wherein the apparatus comprises at least one guide (206, 208) and an assembly of the radial actuators dedicated to each of the torsion matrices.

Said actuator (208) is a cam mechanism for moving at least one insert (210, 212) on which said at least one gripping element (204) is provided, said actuator (208) moving in a lying plane perpendicular to said axis (X). having a first end (250) positioned at a first distance with respect to said axis (X) and a second end positioned at a second distance with respect to said axis (X) greater than said first distance; a cam mechanism (238) comprising at least one guide disc (240, 242) comprising at least one shaped slit (244, 245) having two ends (252);
said first and second ends (250, 252) are on two different radii with respect to said axis (X);
Said cam mechanism (238) of said insert (210, 212) is adapted to slide into at least one said shaped slit (244, 245) according to a direction belonging to a plane perpendicular to said axis (X). 9. Apparatus according to any one of the preceding claims, comprising at least one pin (246, 248) projecting from a portion thereof according to a direction parallel to said axis (X).

said gripping element (204) is provided in an insert (210, 212) having an "L" shape in a transverse plane with said axis (X);
The inserts (210, 212) are
- a first portion (214, 218) substantially parallel to said axis (X);
- a second portion (216, 220) substantially perpendicular to said axis (X);
said first portion (214, 218) being provided at an upper end (222, 224) with said gripping element (204);
10. The device of any one of the preceding claims, wherein said second portion (216, 220) comprises at least one said pin (246, 248).

said cam mechanism comprises a lower guide disc (240) and an upper guide disc (242) separated from each other and having lying planes perpendicular to said axis (X);
Said second portion (216, 220) of each insert (210, 212) is adapted to said lower guide disc ( 11. Apparatus according to any one of the preceding claims, wherein the device is at least partially included between the guide disc (240) and the upper guide disc (242).

comprising an inner torsion matrix (202) comprising an inner insert (210) and an outer torsion matrix (203) comprising an outer insert (212);
12. Apparatus according to any one of claims 9 to 11, wherein the inner insert (210) and the outer insert (212) comprise dedicated cam mechanisms (238).

The cam mechanism (238) is positioned between at least one gripping element (204) and the axis (X), or the gripping element (204) is between the axis (X) and the cam mechanism (238). 13. Apparatus according to any one of claims 9 to 12, arranged externally to said gripping element (204) so as to be

14. The method of any one of the preceding claims, wherein at least one torsion matrix (202, 203) comprises at least one independent gripping element (211) and a radial actuator (208) dedicated to the independent gripping element. Device.

A process for deforming at least one conductor of a winding assembly (100) protruding from a side of a stator or rotor (114) of an electric machine, comprising:
at least one said winding assembly (100) comprising a plurality of ground conductors (102) comprising at least one leg inserted into a cavity (115) of said stator or said rotor (114);
each of said plurality of foundation conductors (102) having a respective free end or termination (108, 110);
The processing is
- gripping at least part of at least one free end (108, 110) by at least one gripping element (204);
- releasing at least part of at least one free end (108, 110) by at least one gripping element (204);
The processing includes, in the steps,
- at least one step of moving said at least one gripping element (204) radially towards or away from said axis;
and C. at least one step of moving at least one of said gripping elements (204) circumferentially about said axis (X).

16. The process of claim 15, wherein said gripping element (204) comprises a seat or slot (226, 228) having an extension substantially parallel to said axial direction (X).

at least one step of relatively moving said gripping element (204) and said stator or rotor (114) axially along an axis parallel to said axis (X) during the gripping and releasing steps; 17. A process according to claim 15 or 16, comprising:

18. The process of any one of claims 15-17, wherein at least two of the steps of moving the gripping element (204) radially and circumferentially occur at least partially simultaneously.

18. The process of claim 17, wherein at least two of the steps of radially, circumferentially and axially moving the gripping element (204) occur at least partially simultaneously.

20. The process of any one of claims 15 to 19 , wherein at least one gripping element (204) retains its orientation with respect to the radial direction at all positions occupied by the gripping element (204) in space. .

21. A process as claimed in any one of claims 15 to 20, wherein the step of moving the gripping element (204) occurs without any release of gripping of at least part of at least one free end (108, 110). .

Claims 15 to 21, wherein said deformation of at least one free end (108, 110) of said winding assembly (100) is performed by a device according to any one of claims 1 to 14. processing.

Said deformation of said free ends (108, 110) belonging to conductors of said winding assembly (100), occupying the same radial portion of said cavity (115), may be applied to other said gripping elements (204) of the same assembly. 23. According to any one of claims 15 to 22, carried out by an assembly of said gripping elements (204) formed by at least one said gripping element (204) moving along a movement trajectory that does not overlap the movement trajectory of Processing as described.

The free ends (108, 110) of at least one of the winding assemblies (100) are released by the respective gripping elements and, following release of the grip, from a straight shape to an end deformation respective end shape. 24. A process as claimed in any one of claims 15 to 23, modified.

Most of said free ends (108, 110) have substantially the same axially aligned end portions, i.e. the free ends (108, 110) lie substantially in the same plane perpendicular to axis X. 25. A process as claimed in any one of claims 15 to 24 lying down.

At least one said free end (108, 110) of a side of said stator or rotor (114) may be part of or all of said free end projecting from said side of said stator or rotor (114). 26. A process according to any one of claims 15 to 25, deformed at different or overlapping time intervals relating to the duration of the deformation action by the edge (108, 110).

At least one said free end (108, 110) of said assembly of free ends belonging to a conductor protruding from the side of said stator or rotor (114) and occupying the same radial position of said cavity, said assembly 27. A process according to any one of claims 15 to 26, deformed at different or overlapping time intervals for the duration of the deformation movement by some or all of the remaining free ends (108, 110) protruding from the .