WO2011069243A1 - Bobine à fils rectangulaire munie d'une tête façonnée et stator constitué de telles bobines - Google Patents

Bobine à fils rectangulaire munie d'une tête façonnée et stator constitué de telles bobines Download PDF

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Publication number
WO2011069243A1
WO2011069243A1 PCT/CA2010/001929 CA2010001929W WO2011069243A1 WO 2011069243 A1 WO2011069243 A1 WO 2011069243A1 CA 2010001929 W CA2010001929 W CA 2010001929W WO 2011069243 A1 WO2011069243 A1 WO 2011069243A1
Authority
WO
WIPO (PCT)
Prior art keywords
rectangular wire
parallel
head
angled portion
stator
Prior art date
Application number
PCT/CA2010/001929
Other languages
English (en)
Inventor
Gyula Bihari
Original Assignee
Tm4 Inc.
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 Tm4 Inc. filed Critical Tm4 Inc.
Publication of WO2011069243A1 publication Critical patent/WO2011069243A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0414—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils
    • H02K15/0421—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins
    • H02K15/0428—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins characterised by the method or apparatus for simultaneously twisting a plurality of hairpins

Definitions

  • Rectangular wire coil provided with a shaped head portion and stator made with such coils.
  • the present invention generally relates to coils for the stator of electric machines. More specifically, the present invention is concerned with coils made of rectangular wire and having a shaped head portion to be used in the assembly of the windings of the stator of an electric machine.
  • Coils made of rectangular wire are known in the art of electric machine stator construction. These coils are interesting since they fill a greater portion of the stator slots than when round wire is used.
  • the head 16 of the coil 12 present a generally S-shape where the curves 18 and 20 each define a semi-cylindrical shape having respective axes 22 and 24 that are parallel to the arms 26 and 28 of the coil 12.
  • Figure 1 which is labeled "Prior Art", is a perspective view of a portion of a conventional three-turn coil
  • Figure 2 which is labeled "Prior Art", is a top plan view of the coil of Figure 1 ;
  • Figure 3 which is labeled “Prior Art”, is an end view of the coil of Figure 1 ;
  • Figure 4 which is labeled “Prior Art”, is a perspective view of a portion of a stator provided with coils illustrated in Figure 1 ;
  • Figure 5 is a perspective view of a three-turn coil according to a first illustrative embodiment
  • Figure 6 is a top plan view of the coil of Figure 5;
  • Figure 7 is an end view of the coil of Figure 5;
  • Figure 8 is a perspective view of a portion of a stator provided with coils illustrated in Figure 5;
  • Figure 9 is a perspective view of a portion of a head forming machine.
  • Figure 10 is a top plan view of a portion of a coil according to another illustrative embodiment.
  • An object is generally to provide an improved rectangular wire coils. More specifically, an object is to provide a rectangular wire coil provided with a shaped head portion and stator made with such coils.
  • a rectangular wire coil for a stator of an electric machine provided with a series of parallel slots for receiving such coils, the rectangular wire coil comprising: first and second parallel arms so configured and sized as to be inserted respectively into two corresponding parallel slots of the stator, the first and second parallel arms defining a plane; and
  • the at least one head connecting two adjacent ends of the first and second parallel arms, the at least one head including a first angled portion integral with the first parallel arm and a second angled portion integral with the second parallel arm; the at least one head showing a substantially U-shaped when seen from a top view perpendicular to the plane and a S-shape when seen from a front view contained in the plane, the S-shape being defined by a first generally semi-cylindrical curve provided in the first angled portion and by a second generally semi-cylindrical curve provided in the second angled portion; the first generally semi-cylindrical curve having an axis generally parallel to the second angled portion while the second generally semi- cylindrical curve having an axis generally parallel to the first angled portion.
  • a stator of an electric machine provided with a series of parallel slots for receiving a number of rectangular wire coils, each rectangular wire coil comprising:
  • first and second parallel arms so configured and sized as to be inserted respectively into two corresponding parallel slots of the stator, the first and second parallel arms defining a plane;
  • the at least one head connecting two adjacent ends of the first and second parallel arms, the at least one head including a first angled portion integral with the first parallel arm and a second angled portion integral with the second parallel arm; the at least one head showing a substantially U-shaped when seen from a top view perpendicular to the plane and a S-shape when seen from a front view contained in the plane, the S-shape being defined by a first generally semi-cylindrical curve provided in the first angled portion and by a second generally semi-cylindrical curve provided in the second angled portion; the first generally semi-cylindrical curve having an axis generally parallel to the second angled portion while the second generally semi- cylindrical curve having an axis generally parallel to the first angled portion.
  • each of the three turns 102-106 of the coil 100 includes first and second arm portions 1 10 and 1 12 integrally connected to a head portion 114 defined by a first angled portion 1 6, a curved portion 118 and a second angled portion 120.
  • the head portion 1 14 is generally S-shaped, as can be seen from the end view of Figure 7.
  • the S-shape is defined by first and second curves 122 and 124 respectively provided in the first and second angled portions 1 16 and 120.
  • the semi-cylindrical shapes of the curves 122 and 124 have respective axes 126 and 128 that are not parallel to the arms 1 10 and 1 12.
  • the axis 126 of the semi-cylindrical shape forming the first curve 122 in the first angled portion 1 16 is generally parallel to the second angled portion 120.
  • the axis 128 of the semi-cylindrical shape forming the second curve 124 in the second angled portion 1 18 is generally parallel to the first angled portion 118.
  • first and second curves 122 and 124 define semi-cylindrical passages aligned with the angle portions of the coils that are inserted into adjacent slots of the stator, the head portions of these adjacent coils do not contact one another.
  • FIG. 8 of the appended drawings illustrate such a stator
  • Figure 9 of the appended drawings illustrate a portion of a machine 134 used to form the heads of the coils 100. This machine is fully described in co-pending US patent application published under number US 2007/0000122A1 entitled “Rectangular wire coil head shaping machine and method therefore” and naming Caya et al. as inventors.
  • a generally semi-cylindrical projection 136 and a generally semi-cylindrical head forming element 138 are provided to form the appropriately shaped curves in the head portion of the coils 100.
  • the operation of the machine 134 is fully described in the above- noted co-pending application and will therefore not be repeated herein for concision purpose.
  • the coil 200 includes first and second arm portions 210 and 212 integrally connected to a head portion 214 defined by a first angled portion 216, a curved portion 218 and a second angled portion 220.
  • the head portion 214 is generally S-shaped.
  • the S-shape is defined by curves 222 and 224 respectively provided in the angled portions 216 and 220.
  • the semi-cylindrical shapes of the curves 222 and 224 have respective axes 226 and 228 that are not parallel to the arms 210 and 212.
  • the axis 226 of the semi-cylindrical shape forming the first curve 222 in the first angled portion 216 is generally parallel to the second angled portion 220 while the axis 228 of the semi-cylindrical shape forming the second curve 224 in the second angled portion 218 is generally parallel to the first angled portion 218.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

L'invention concerne une bobine à fils rectangulaire munie de portions de tête façonnées, conçues pour empêcher que les têtes des bobines insérées dans les fentes voisines d'un stator entrent en contact.
PCT/CA2010/001929 2009-12-11 2010-12-02 Bobine à fils rectangulaire munie d'une tête façonnée et stator constitué de telles bobines WO2011069243A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28556809P 2009-12-11 2009-12-11
US61/285,568 2009-12-11

Publications (1)

Publication Number Publication Date
WO2011069243A1 true WO2011069243A1 (fr) 2011-06-16

Family

ID=44145061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2010/001929 WO2011069243A1 (fr) 2009-12-11 2010-12-02 Bobine à fils rectangulaire munie d'une tête façonnée et stator constitué de telles bobines

Country Status (1)

Country Link
WO (1) WO2011069243A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127541A3 (fr) * 2012-03-02 2014-07-03 Robert Bosch Gmbh Stator pour machine électrique et procédé de fabrication d'un enroulement de phase
CN103986287A (zh) * 2014-06-04 2014-08-13 济南科亚电子科技有限公司 一种拉线模
CN104901447A (zh) * 2014-03-05 2015-09-09 鸿富锦精密工业（深圳）有限公司 电机定子及其绕线结构
KR20160028548A (ko) 2014-09-03 2016-03-14 현대모비스 주식회사 헤어핀 권선모터의 고정자 어셈블리
US9893582B2 (en) 2014-03-03 2018-02-13 Scienbizip Consulting (Shenzhen) Co., Ltd. Motor stator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2244284A1 (fr) * 1973-09-18 1975-04-11 N I Experiment Avtomobilnogo
US5619787A (en) * 1994-06-23 1997-04-15 Hydro-Quebec Method for mounting conductor sections onto a stator frame of a dynamoelectric machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2244284A1 (fr) * 1973-09-18 1975-04-11 N I Experiment Avtomobilnogo
US5619787A (en) * 1994-06-23 1997-04-15 Hydro-Quebec Method for mounting conductor sections onto a stator frame of a dynamoelectric machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127541A3 (fr) * 2012-03-02 2014-07-03 Robert Bosch Gmbh Stator pour machine électrique et procédé de fabrication d'un enroulement de phase
US9893582B2 (en) 2014-03-03 2018-02-13 Scienbizip Consulting (Shenzhen) Co., Ltd. Motor stator
CN104901447A (zh) * 2014-03-05 2015-09-09 鸿富锦精密工业（深圳）有限公司 电机定子及其绕线结构
CN103986287A (zh) * 2014-06-04 2014-08-13 济南科亚电子科技有限公司 一种拉线模
KR20160028548A (ko) 2014-09-03 2016-03-14 현대모비스 주식회사 헤어핀 권선모터의 고정자 어셈블리
KR102255327B1 (ko) * 2014-09-03 2021-05-26 현대모비스 주식회사 헤어핀 권선모터의 고정자 어셈블리

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