Rotor coil insulating device

Patent metadata

Field	Value
Publication number	US-10277087-B2
Application number	US-201515126732-A
Country	US
Kind code	B2
Filing date	Feb 20, 2015
Priority date	Mar 28, 2014
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

An insulating device ( 10 ) of a rotor winding, which includes a device for positioning the insulator relative to a pole wheel including teeth and spaces between the teeth, which comprises at least two feet ( 102 ) on a surface ( 101 ) of the insulator that engages with a surface of the pole wheel, the feet each having at least two separate contacts among the following contacts: contact on a side surface of one tooth; contact on a side surface of an adjacent tooth; contact on an interstitial surface between one tooth and the adjacent tooth.

First claim

The invention claimed is:

1. A rotor coil insulating device ( 10 ) for a rotor including first and second magnet wheels ( 301 , 308 ) each comprising teeth and gaps between the teeth, the rotor coil insulating device ( 10 ), comprising:
a positioning device for positioning the coil insulating device ( 10 ) relative to the first magnet wheel ( 301 ), the rotor coil insulating device ( 10 ) having a first planar axial face ( 101 );
the positioning device comprising at least two feet ( 102 ) on the first planar axial face ( 101 ) of the rotor coil insulating device ( 10 ) coming into contact with the first magnet wheel ( 301 ), each of the feet having at least two distinct contacts of from amongst the following contacts:
a contact on a lateral face ( 302 ) of one of the teeth of the first magnet wheel ( 301 );
a contact on a lateral face ( 306 ) of a consecutive tooth of the first magnet wheel ( 301 );
a contact on an interstitial face ( 304 ) between the consecutive teeth of the first magnet wheel ( 301 );

the lateral faces ( 302 , 306 ) and the interstitial face ( 304 ) of the first magnet wheel ( 301 ) defining a gap between the consecutive teeth of the first magnet wheel ( 301 ).

2. The rotor coil insulating device ( 10 ) according to claim 1 , further comprising a second planar axial face ( 201 ) parallel to the first planar axial face ( 101 ), and at least one lug ( 202 , 203 or 204 ) on the second planar axial face ( 201 ), wherein the at least one lug ( 202 , 203 or 204 ) is deformed when the coil insulating device ( 10 ) is mounted to the rotor for retaining the coil.

3. The rotor coil insulating device ( 10 ) according to claim 1 , further comprising at least one through opening ( 205 ) in at least one of the first and second planar axial faces ( 101 or 201 ) of the rotor coil insulating device ( 10 ).

4. The rotor coil insulating device ( 10 ) according to claim 2 , further comprising at least one lug ( 202 , 203 or 204 ) on an inner face of a core of the rotor coil insulating device ( 10 ).

5. The rotor coil insulating device ( 10 ) according to claim 1 , wherein an outer surface of the foot ( 102 ) is in contact with the tooth of the second magnet wheel ( 308 ) complementary to the first magnet wheel ( 301 ).

6. The rotor coil insulating device ( 10 ) according to claim 1 , wherein the feet ( 102 ) are distributed regularly.

7. The rotor coil insulating device ( 10 ) according to claim 2 , wherein the insulating device ( 10 ) comprises a plurality of lugs ( 202 , 203 or 204 ) distributed regularly.

8. The rotor coil insulating device ( 10 ) according to claim 1 , comprising four feet ( 102 ).

9. The rotor coil insulating device ( 10 ) according to claim 1 , wherein the at least two contacts are with the same face of the tooth.

10. The rotor coil insulating device ( 10 ) according to claim 1 , wherein the rotor coil insulating device ( 10 ) is made of plastic material.

11. The rotor coil insulating device ( 10 ) according to claim 1 , wherein at least one characteristic dimension of a section of a base of the foot ( 102 ) is larger than at least one corresponding characteristic dimension of a section of a top of the foot.

12. The rotor coil insulating device ( 10 ) according to claim 11 , wherein a “low width” dimension of the section at the base of the foot ( 102 ), and “high width” dimension of the section of the top of the foot, are characteristic dimensions, and are parallel to a radius of the rotor coil insulating device ( 10 ).

13. The rotor coil insulating device ( 10 ) according to claim 11 , wherein a “high length” dimension of the section at the base of the foot ( 102 ), and a “low length” dimension of the section of the top of the foot, are characteristic dimensions, and are orthogonal to the radius of the rotor coil insulating device ( 10 ).

14. The rotor coil insulating device ( 10 ) according to claim 1 , wherein at least one of the first and second magnet wheels ( 301 or 308 ) is forging forged.

15. The rotor coil insulating device ( 10 ) according to claim 14 , wherein the at least one of the first and second magnet wheels ( 301 or 308 ) is formed by a forging method comprising a step of hot forging and a step of cold forging.

16. A vehicle ( 70 ) comprising a rotor comprising the rotor coil insulating device ( 10 ) according to claim 1 .

17. The rotor coil insulating device ( 10 ) according to claim 2 , further comprising at least one through opening ( 205 ) in at least one of the first and second planar axial faces ( 101 or 201 ) of the coil insulating device ( 10 ).

18. The rotor coil insulating device ( 10 ) according to claim 2 , wherein an outer surface of the foot ( 102 ) is in contact with the tooth of the second magnet wheel ( 308 ) complementary to the first magnet wheel ( 301 ).

19. The rotor coil insulating device ( 10 ) according to claim 3 , wherein an outer surface of the foot ( 102 ) is in contact with the tooth of the second magnet wheel ( 308 ) complementary to the first magnet wheel ( 301 ).

20. The rotor coil insulating device ( 10 ) according to claim 4 , wherein an outer surface of a foot ( 102 ) is in contact with the tooth of the second magnet wheel ( 308 ) complementary to the first magnet wheel ( 301 ).

Assignees

• Valeo Equip Electr Moteur
• Valeo Equipments Electriques Moteur

Inventors

• Balthaze Patrice
• Bilteryst Pierre-Yves
• Delianne Henri
• Margueritte David
• Bocquel Michel

Classifications

• H02K3/528 Primary

  of the claw-pole type · CPC title

• H02K3/345

  between conductor and core, e.g. slot insulation · CPC title

• H02K3/325 Primary

  for windings on salient poles, such as claw-shaped poles · CPC title

• Y02E10/725

  Cross-Sectional Technologies · mapped topic

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title