EP4706154A1 - Noyau de rotor à réluctance avec une structure de support comprenant des parties de guidage de flux - Google Patents

Noyau de rotor à réluctance avec une structure de support comprenant des parties de guidage de flux

Info

Publication number
EP4706154A1
EP4706154A1 EP23728173.8A EP23728173A EP4706154A1 EP 4706154 A1 EP4706154 A1 EP 4706154A1 EP 23728173 A EP23728173 A EP 23728173A EP 4706154 A1 EP4706154 A1 EP 4706154A1
Authority
EP
European Patent Office
Prior art keywords
support
support structure
central
beams
support plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23728173.8A
Other languages
German (de)
English (en)
Inventor
Bryan Mackulin
Adam BRUGMANN
Sarah KASSINGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Electrical & Power Usa LLC
Original Assignee
Safran Electrical & Power Usa LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Safran Electrical & Power Usa LLC filed Critical Safran Electrical & Power Usa LLC
Publication of EP4706154A1 publication Critical patent/EP4706154A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
    • H02K1/246—Variable reluctance rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components

Definitions

  • the field of the invention relates to flux guides, and, more particularly , to a support structure for flux guides.
  • Vehicles such as aircraft, buses, trains, ships, and automobiles, often include one or more motors or other energy-generation devices that can be used to power the vehicles.
  • the one or more motors may at least partially use electricity, and the one or more motors may include at least one flax guide to enhance generation or usage of electricity by the one or more motors.
  • Other motors may include materials that may not. allow the other motors to function optimally. For example, a configuration, composition, or the like of the other motors may limit an output of the other motors.
  • a support structure may support one or more flux guides.
  • the support structure may include a support plate, a central support shaft, and one or more beams.
  • the support plate may be located to define an aft surface of the support structure and coupled with a central support shaft.
  • the support plate may define a set of openings.
  • the central support shaft may extend away from the support plate.
  • the one or more beams may be coupled with the support plate. Each beam of the one or more beams may extend away from the support plate in a same direction as the central support shaft and may be configured to be positioned between adjacent flux guides of the one or more flux guides.
  • the central support shaft may extend along a longitudinal axis of the support structure, and the longitudinal axis may be located offset from a center of the support structure.
  • the central support shaft may include a non-magnetic material that does not affect a magnetic circuit associated with the one or more flux guides.
  • the support structure may additionally include a support pin, and the support pin may be located adjacent to the central support shaft to retain a position of the central support shaft.
  • the support pin may additionally be coupled with the support plate, and the support pin may be configured to transfer a radial load of the central support shaft to the support plate.
  • the one or more beams may maintain a plurality of gaps, and each gap of the plurality of gaps may be defined between a corresponding flux guide of the one or more flux guides.
  • the one or more beams may include more than one beam, and the one or more beams may be arranged around a central, longitudinal axis of the support structure.
  • a first beam of the one or more beams may be located at a first radius with respect to the central, longitudinal axis of the support structure.
  • a second beam of the one or more beams may be located at a second radius with respect to the central, longitudinal axis of the support structure, and the second radius may be less than the first radius.
  • each beam of the one or more beams in response to the one or more beams receiving rotational stress, may be configured to apply compression pressure to the support structure.
  • each beam of the one or more beams may be located abutting one or more protrusions that extend from the corresponding flux guide.
  • the support plate may have a center that is substantially aligned with a central, longitudinal axis of the support structure.
  • the set of openings may be arranged radially around the center of the support plate to facilitate air flow to cool the one or more flux guides.
  • the set of openings may include a first opening defining a first shape and a second opening defining a second shape, and the second shape may be different than the first shape.
  • At least one of the support plate, the central support shaft, or the one or more beams may include a non-magnetic polymeric material.
  • a brushless doubly fed machine may include the support structure and one or more flux guides.
  • a support structure may be used for one or more flux guides.
  • the support structure may include a set of flux guides, a support plate, a central support shaft, and one or more beams.
  • the support plate may be located defining an aft surface and coupled with a central support shaft.
  • the support plate may define a set of openings.
  • the central support shaft may extend away from the support plate.
  • the one or more beams may be coupled with the support plate. Each beam of the one or more beams may extend away from the support plate in a same direction as the central support shaft and may be configured to be positioned between adjacent flux guides of the one or more flux guides.
  • the central support shaft may extend along a longitudinal axis of the support structure, and the longitudinal axis may be offset from a center of the support structure.
  • the central support shaft may include a non-magnetic material that does not affect a magnetic circuit associated with the support structure, and the support structure may additionally include a support pin located adjacent to the central support shaft to retain a position of the central support shaft.
  • the one or more beams may maintain a plurality of gaps, and each gap of the plurality of gaps may be defined between a corresponding flux guide of the one or more flux guides.
  • the one or more beams may include more than one beam, the one or more beams may be arranged around a central, longitudinal axis of the support structure, and a first beam of the one or more beams may be located at a first radius with respect to the central, longitudinal axis of the support structure.
  • a second beam of the one or more beams may be located at a second radius with respect to the central, longitudinal axis of the support structure, and the second radius may be less than the first radius.
  • a brushless doubly fed machine may be used for a hybrid electric drive system.
  • the BDFM may include a set of flux guides and a support structure.
  • the support structure may include a support plate, a central support shaft, and one or more beams.
  • the support plate may be located on an aft surface of the BDFM and coupled with a central support shaft, and the support plate may define a set of openings.
  • the central support shaft may extend away from the support plate.
  • the one or more beams may be coupled with the support plate. Each beam of the one or more beams may extend away from the support plate in a same direction as the central support shaft and may be configured to be positioned between adjacent flux guides of the set of flux guides.
  • the support plate may have a center that is offset from a central, longitudinal axis of the BDFM, and the set of openings may be arranged radially around the center of the support plate to facilitate air flow to cool the set of flux guides.
  • FIG. I A is a perspective view of a motor with a support structure according to some embodiments of the present disclosure.
  • FIG. IB is another perspective view of the motor of FIG. 1A and without a central shaft.
  • FIG. 2 is another perspective view of a portion of the motor of FIG. 1A and without the central shaft.
  • FIG. 3 is a front view’ of the motor of FIG. 1A without a central shaft.
  • FIG. 4 is a front view' of the motor of FIG. 1A with a central support shaft and without a support plate.
  • FIG. 5 is front view’ of the motor of FIG. 1A without a central support shaft and without a support plate.
  • FIG. 6 is a front view’ of a set of flux guides and a portion of the support structure of the motor of FIG. 1A.
  • FIG. 7A is a sectional view' of a portion of the motor of FIG. 1A.
  • FIG. 7B is a sectional side view of a portion of the motor of FIG. 1A.
  • FIG. 7C is a partial front view’ of a portion of the motor of FIG. 1 A.
  • the described embodiments of the invention provide support structures for one or more flux guides. While the support structures are discussed for use with respect to flux guides and a brushless doubly fed machine, they are by no means so limited. Rather, embodiments of the support structures may be used in machines of any type or otherwise as desired.
  • FIGS. 1A-7C illustrate an example of a motor 100 with a support structure 200 and one or more flux guides 208 according to embodiments.
  • the motor 100 may be used in an aircraft or for other suitable passenger vehicles as desired.
  • the motor 100 illustrated is a brushless doubly fed motor (BDFM) 100 with a central shaft 101.
  • BDFM brushless doubly fed motor
  • the particular motor 100 illustrated should not be considered limiting, and in other embodiments, the support structures 200 described herein may be used w'ith other types of motors as desired, and the motor 100 need not be a BDFM motor and/or be a BDFM motor with the configuration illustrated.
  • the motor 100 may include one or more motor segments 108 along a length of the motor 100, and each motor segment 108 may have one or more sets
  • the motor 100 includes eight motor segments 108; however, the number of motor segments 108 should not be considered limiting, and in other embodiments, the motor 100 may have one motor segment 108 or a plurality of motor segments 108 as desired.
  • each motor segment 108 includes six sets 111 of flux guides 208, and each set 111 includes four flux guides 208.
  • the number of sets 111 of flux guides 208 and/or the number of flux guides 208 provided within a set 111 should not be considered limiting.
  • a motor segment 108 may include at least one set
  • the set 111 includes at least one flux guide 208.
  • the flux guides 208 are illustrates as being generally U-shaped, the shape and configuration of the flux guides 208 and/or the sets 111 should not be considered limiting on the disclosure.
  • the support structure 200 may enhance electromagnetic performance and/or properties of the motor 100 with the flux guides 208.
  • the support structure 200 may further provide improved physical properties to the motor 100 with the flux guides 208 by providing improved stability and''or positioning between components of the motor 100 (including the flux guides 208), provide cooling effects for the motor 100, and/or provide other performance improvements for the motor 100.
  • the motor 100 with the support structure 200 may allow the motor 100 to operate at higher operating speeds compared to other motors or components that have flux guides.
  • the motor 100 may be able to operate at approximately 3000 rpm or higher, such as approximately 12,000 rpm or higher, such as 14,000 rpm, 16,000 rpm, 20,000 rpm, etc.
  • the motor 100 w’ith the support structure 200 may operate at other rpms as desired, such as less than 3000 rpm or greater than 3000 rpm as desired.
  • the support structure 200 includes, for each motor segment 108, opposing support plates 104 that cover opposing ends of the flux guides 208 along the length of the motor 100.
  • the support plates 104 of intermediate motor segments 108 may be adjacent to each other.
  • a plurality of support plates 104 may be provided between flux guides 208 along the length of the motor 108 at intermediate locations.
  • a single support plate 104 may be provided between flux guides 208 of adjacent motor segments 108 along the length of the motor 100.
  • each support plate 104 may define one or more openings 206.
  • the number, shape, size, and distribution of openings 206 should not be considered limiting.
  • the openings 206 may allow for air flow through the motor 100 to provide a cooling effect.
  • the support structure 200 includes, for each set 111 of flux guides 208, a central support shaft 102, and one or more beams 202.
  • the central support shaft 102 and the one or more beams 202 may facilitate positioning of the flux guides 208 while providing improved stability' with improved electromagnetic performance.
  • the number of central support shafts 102 and the number of beams 202 in the support structure 200 may be varied depending on the number of sets H i .
  • the central support shaft 102 and the one or more beams 202 may extend between the support plates 104 of a particular motor segment 108.
  • the support plates 104 may define apertures configured to receive the central support shaft 102 and the one or more beams 202.
  • the central support shaft 102 and one or more beams 202 for a given set 1 11 may span two or more motor segments 108.
  • the central support shaft 102 and one or more beams 202 for a given set 111 may extend along the entire length of the motor 100 (e.g., from a forward-most support plate 104 to an aft-most support plate 104); however, they need not in other embodiments.
  • At least one of the support plates 104, the central support shaft 102, and/or the one or more beams 202 may include a non-magnetic material.
  • the central support shaft 102 and one or more beams 202 of each set i l l may include a non-magnetic material that does not affect a magnetic circuit associated with the one or more flux guides 208.
  • the central support shaft 102 and/or the one or more beams 202 may include polymeric materials, aluminum materials or alloys, platinum materials or alloys, combinations thereof, and/or other suitable materials as desired.
  • each central support shaft 102 may extend along a corresponding longitudinal axis 402.
  • the longitudinal axis 402 of a given central support shaft 102 may be located offset from a center axis 404 of the support structure 200.
  • the longitudinal axis 402 of each central support shaft 102 and the center axis 404 may extend parallel to each other
  • the support plate 104 may have a center axis 406 that is substantially aligned with the center axis 404 of the support structure 200.
  • the set of openings 206 of the support plate 104 when included, may be arranged radially around the center axis 406 of the support plate 104 in various patterns to facilitate air flow to cool the one or more flux guides 208.
  • the number, shape, size, pattern, and distribution of the openings 206 should not be considered limiting.
  • the set of openings 206 may include a first opening defining a first shape and a second opening defining a second shape different than the first shape.
  • the first opening 206 may be a circle and the second opening may be an oval, a square, a rectangle, a triangle, etc.
  • a support pin 210 may be located adjacent to the central support shaft 102 and may be utilized to retain a position of the central support shaft 102.
  • the support pin 210 may additionally be coupled with the support plate 104.
  • the support pin 210 may be configured to transfer a radial load, a lateral load, and the like of the central support shaft 102 to the support plate 104.
  • each beam of the one or more beams 202 may be positioned between adjacent flux guides 208 of one or more flux guides 208.
  • each beam of the one or more beams 202 may apply compression pressure to the support structure 200.
  • the compression pressure may stabilize the support structure 200, or the motor 100 or other motor that includes the support structure 200, at various rpms, including high rpms.
  • any number of beams 202 may be provided for a given set 111 of one or more flux guides 208.
  • each set 111 of flux guides 208 includes nine beams 202a-i.
  • a set 111 of one or more flux guides 208 may include any number of beams 202 as desired.
  • the one or more beams 202 may be arranged around or relative to the central support shaft 102 of the set 111 of flux guides 208 the support structure 200.
  • a first beam of the one or more beams 202 may be located at a first radius 504 with respect to the center axis 404 of the support structure 200, and a second beam of the one or more beams 202 may be located at a second radius 506 with respect to the center axis 404 of the support structure 200.
  • the second radius 506 may be less than the first radius 504.
  • the beam 202c may be positioned at the first radius 504, and the beam 202a may be positioned at the second radius 506 that is less than the first radius 504.
  • each beam 202 may be provided at other positionings or locations relative to the center axis 404 as desired.
  • the location of each beam 202 may at least partially depend on a shape and/or number of the flux guides 208.
  • the one or more beams 202 may maintain a gap 702 between adjacent flux guides 208, which may improve the magnetic performance of the flux guides 208.
  • the embodiment of FIG. 6 includes the beam 202a and the beam 202f may maintain a gap 702c between the flux guide 208c and the flux guide 208d; the beam 202b and the beam 202e may maintain a gap 702b between the flux guide 208b and the flux guide 208c; and the beam 202c and the beam 202d may maintain a gap 702a between the flux guide 208a and the flux guide 208b.
  • each beam 202 of the one or more beams 202 optionally may be located abutting one or more positioning features, such as but not limited to protrusions 705, that extend from a corresponding flux guide 208 of the one or more flux guides 208.
  • positioning features may be provided additionally or alternatively on the beams 202.
  • the protrusions 705 or other positioning features may facilitate engagement and/or positioning between the beams 202 and the flux guides 208.
  • the beam 202a may be located abutting protrusions 705a-d
  • the beam 202f may be located abutting protrusions 705e-h, etc.
  • the shape, number, and location of the protrusions 705 should not be considered limiting. Moreover, in other embodiments, other features or devices may be utilized to position the beams 202 relative to the flux guides 208 in addition to or in place of the protrusions 705. In other embodiments, positioning features such as the protrusions 705 (or other features or devices) need not be included. As non-limiting examples, the beams 202g-i are illustrated between adjacent flux guides 208 but without positioning features on the flux guides 208 or on the beams 202.
  • Example 1 A support structure for supporting one or more flux guides, the support structure comprising: a support plate located defining an aft surface of the support structure and coupled with a central support shaft, the support plate defining a set of openings; the central support shaft that extends away from the support plate; and one or more beams coupled with the support plate, each beam of the one or more beams extending away from the support plate in a same direction as the central support shaft and configured to be positioned between adjacent flux guides of the one or more flux guides.
  • Example 2 The support structure of any of the preceding or subsequent examples, wherein the central support shaft extends along a longitudinal axis of the support structure, and wherein the longitudinal axis is located offset from a center of the support structure.
  • Example 3 The support structure of any of the preceding or subsequent examples, wherein the central support shaft comprises a non-magnetic material that does not affect a magnetic circuit associated with the one or more flux guides.
  • Example 4 The support structure of any of the preceding or subsequent examples, further comprising a support pin, wherein the support pin is located adjacent to the central support shaft to retain a position of the central support shaft.
  • Example 5 The support structure of any of the preceding or subsequent examples, wherein the support pin is additionally coupled with the support plate, and wherein the support pin is configured to transfer a radial load of the central support shaft to the support plate.
  • Example 6 The support structure of any of the preceding or subsequent examples, wherein the one or more beams maintains a plurality of gaps, wherein each gap of the plurality of gaps is defined between a corresponding flux guide of the one or more flux guides.
  • Example 7 The support structure of any of the preceding or subsequent examples, wherein the one or more beams includes more than one beam, and wherein the one or more beams are arranged around a central, longitudinal axis of the support structure.
  • Example 8 The support structure of any of the preceding or subsequent examples, wherein a first beam of the one or more beams is located at a first radius with respect to the central, longitudinal axis of the support structure, wherein a second beam of the one or more beams is located at a second radius with respect to the central, longitudinal axis of the support structure, and wherein the second radius is less than the first radius.
  • Example 9 The support structure of any of the preceding or subsequent examples, wherein, in response to the one or more beams receiving rotational stress, each beam of the one or more beams is configured to apply compression pressure to the support structure.
  • Example 10 The support structure of any of the preceding or subsequent examples, wherein each beam of the one or more beams is located abutting one or more protrusions that extend from the corresponding flux guide.
  • Example 11 The support structure of any of the preceding or subsequent examples, wherein the support plate has a center that is substantially aligned with a central, longitudinal axis of the support structure.
  • Example 12 The support structure of any of the preceding or subsequent examples, wherein the set of openings are arranged radially around the center of the support plate to facilitate air flow to cool the one or more flux guides.
  • Example 13 The support structure of any of the preceding or subsequent examples, wherein the set of openings comprises a first opening defining a first shape and a second opening defining a second shape, wherein the second shape is different than the first shape.
  • Example 14 The support structure of any of the preceding or subsequent examples, wherein at least one of the support plates, the central support shaft, or the one or more beams comprises a non-magnetic polymeric material.
  • Example 15 A brushless doubly fed machine (BDFM) comprising the support structure of any of the preceding or subsequent examples and one or more flux guides.
  • BDFM brushless doubly fed machine
  • Example 16 A support structure for one or more flux guides, the support structure comprising: a set of flux guides; a support plate located defining an aft surface and coupled with a central support shaft, the support plate defining a set of openings; the central support shaft that extends away from the support plate; and one or more beams coupled with the support plate, each beam of the one or more beams extending away from the support plate in a same direction as the central support shaft and configured to be positioned between adjacent flux guides of the one or more flux guides.
  • Example 17 The support structure of any of the preceding or subsequent examples, wherein the central support shaft extends along a longitudinal axis of the support structure, wherein the longitudinal axis is offset from a center of the support structure, wherein the central support shaft comprises a non-magnetic material that does not affect a magnetic circuit associated with the support structure, and wherein the support structure further comprises a support pin located adjacent to the central support shaft to retain a position of the central support shaft.
  • Example 18 The support structure of any of the preceding or subsequent examples, wherein the one or more beams maintains a plurality of gaps, wherein each gap of the plurality of gaps are defined between a corresponding flux guide of the one or more flux guides, wherein the one or more beams includes more than one beam, wherein the one or more beams are arranged around a central, longitudinal axis of the support structure, wherein a first beam of the one or more beams is located at a first radius with respect to the central, longitudinal axis of the support structure, wherein a second beam of the one or more beams is located at a second radius with respect to the central, longitudinal axis of the support structure, and wherein the second radius is less than the first radius.
  • Example 19 A brushless doubly fed machine (BDFM) for a hybrid electric drive system, the BDFM comprising: a set of flux guides; and a support structure comprising: a support plate located on an aft surface of a brushless doubly fed machine (BDFM) and coupled with a central support shaft, the support plate defining a set of openings; the central support shaft that extends away from the support plate; and one or more beams coupled with the support plate, each beam of the one or more beams extending away from the support plate in a same direction as the central support shaft and configured to be positioned between adjacent flux guides of the set of flux guides.
  • BDFM brushless doubly fed machine
  • Example 20 The BDFM of any of the preceding or subsequent examples, wherein the support plate has a center that is offset from a central, longitudinal axis of the BDFM, and wherein the set of openings are arranged radially around the center of the support plate to facilitate air flow to cool the set of flux guides.
  • the term “substantially” refers to the complete or nearly complete extent or degree of an action, characteristic, property, state, structure, item, or result.
  • an object that is “substantially” enclosed would mean that the object is either completely enclosed or nearly completely enclosed.
  • the exact allowable degree of deviation from absolute completeness may in some cases depend on the specific context. However, the nearness of completion will be so as to have the same overall result as if absolute and total completion were obtained.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un moteur comportant des segments de moteur et une structure de support. Chaque segment de moteur a un ou plusieurs ensembles de guides de flux. La structure de support apte à supporter lesdits guides de flux comprend des plaques de support, un arbre de support central et des poutres. Chaque plaque de support est située sur un et/ou l'autre côté d'un segment de moteur, est accouplée à l'arbre de support central et définit un ensemble d'ouvertures. Chaque poutre est accouplée à au moins deux plaques de support. L'arbre de support central et lesdites poutres s'étendent dans une direction axiale. Les plaques de support s'étendent perpendiculairement à l'arbre.
EP23728173.8A 2023-05-03 2023-05-03 Noyau de rotor à réluctance avec une structure de support comprenant des parties de guidage de flux Pending EP4706154A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2023/020839 WO2024228704A1 (fr) 2023-05-03 2023-05-03 Noyau de rotor à réluctance avec une structure de support comprenant des parties de guidage de flux

Publications (1)

Publication Number Publication Date
EP4706154A1 true EP4706154A1 (fr) 2026-03-11

Family

ID=86657550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23728173.8A Pending EP4706154A1 (fr) 2023-05-03 2023-05-03 Noyau de rotor à réluctance avec une structure de support comprenant des parties de guidage de flux

Country Status (3)

Country Link
EP (1) EP4706154A1 (fr)
CN (1) CN121285924A (fr)
WO (1) WO2024228704A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101341625B1 (ko) * 2007-05-31 2013-12-20 엘지전자 주식회사 동기 리럭턴스 모터
EP2465182A1 (fr) * 2009-08-14 2012-06-20 ABB Research Ltd. Rotor modulaire pour machine synchrone à reluctance
US10491061B2 (en) * 2015-12-08 2019-11-26 General Electric Company Rotor for a reluctance machine
US11121592B2 (en) * 2019-04-08 2021-09-14 GM Global Technology Operations LLC Electric machine core with arcuate grain orientation

Also Published As

Publication number Publication date
CN121285924A (zh) 2026-01-06
WO2024228704A1 (fr) 2024-11-07

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