WO2014061501A1 - Machine électrique tournante à deux phases - Google Patents

Machine électrique tournante à deux phases Download PDF

Info

Publication number
WO2014061501A1
WO2014061501A1 PCT/JP2013/077316 JP2013077316W WO2014061501A1 WO 2014061501 A1 WO2014061501 A1 WO 2014061501A1 JP 2013077316 W JP2013077316 W JP 2013077316W WO 2014061501 A1 WO2014061501 A1 WO 2014061501A1
Authority
WO
WIPO (PCT)
Prior art keywords
teeth
tip
phase
circumferential direction
electrical machine
Prior art date
Application number
PCT/JP2013/077316
Other languages
English (en)
Japanese (ja)
Inventor
仁之 渡邊
楽 板橋
伊藤　秀明
貴之 下田
Original Assignee
株式会社ミツバ
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 株式会社ミツバ filed Critical 株式会社ミツバ
Priority to IN3052DEN2015 priority Critical patent/IN2015DN03052A/en
Priority to CN201380053656.3A priority patent/CN104718688A/zh
Publication of WO2014061501A1 publication Critical patent/WO2014061501A1/fr

Links

Images

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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H02K21/222—Flywheel magnetos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • 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
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Definitions

  • the present invention relates to a two-phase rotating electrical machine mounted on, for example, a motorcycle.
  • This application claims priority on October 19, 2012 based on Japanese Patent Application No. 2012-231907 filed in Japan, the contents of which are incorporated herein by reference.
  • a rotating electric machine mounted on a motorcycle there is one in which a generator having a permanent magnet and a starter motor function are integrated.
  • a rotating electrical machine includes a bottomed cylindrical flywheel (rotor) engaged with a crankshaft of an engine of a motorcycle, and a stator fixed to the inside of the engine case.
  • a permanent magnet having a C-shaped cross section is provided on the inner peripheral surface side of the flywheel, while teeth on which a plurality of armature coils are wound project from the stator along the circumferential direction.
  • the number of magnetic poles is P
  • the number of teeth is T
  • n is a natural number
  • the number of magnetic poles P and the number of teeth T Is P: T 4n: 4 (n + 1) (1) It is set to satisfy.
  • the two-phase rotating electrical machine 101 includes a bottomed cylindrical flywheel 102 and a stator 103 provided radially inward of the flywheel 102.
  • 12 permanent magnets 104 having a C-shaped cross section are arranged on the inner peripheral surface side so that magnetic poles appear alternately along the circumferential direction.
  • the stator 103 has 16 teeth 105 protruding outward in the radial direction.
  • the teeth 105 are formed in a substantially T-shaped cross section, and a winding drum portion 106 extending along the radial direction, and a tip portion formed integrally with the distal end on the radial outer side of the winding drum portion 106 and extending along the circumferential direction. 107.
  • the winding drum portions 106 are arranged at equal intervals in the circumferential direction, and the tip portion 107 is formed so that the central portion in the circumferential direction is located at the tip of the winding drum portion 106.
  • a dovetail slot 108 is formed between adjacent teeth 105.
  • the armature coil is passed through the slot 108, and the armature coil is wound around each of the teeth 105 on which an insulating insulator (not shown) is mounted.
  • the armature coil forms a magnetic circuit whose phase is shifted by 90 °.
  • the magnetic flux amount of the magnetic flux formed by the armature coil of the stator 103 is maximized at the center portion in the circumferential direction of the tip portion 107.
  • the tip portion 107 of the teeth 105 of the same phase is not located in the circumferential central portion of the permanent magnet 104, and this permanent The circumferential central portion of the tip portion 107 is shifted by an angle ⁇ 100 with respect to the circumferential central portion of the magnet 104.
  • the present invention has been made in view of the above-described circumstances, and provides a two-phase rotating electrical machine capable of suppressing a decrease in capacity.
  • a rotor that is rotatably supported and provided with a plurality of magnetic poles along the circumferential direction, and a plurality of teeth project along the circumferential direction.
  • the number of magnetic poles is P
  • the number of teeth is T
  • n is a natural number
  • the teeth extend along a radial direction, and are configured by a winding drum portion around which a winding is wound, and a tip portion extending along the circumferential direction from the tip of the winding drum portion.
  • the position of the circumferential center portion of the tip portion corresponding to the other phase is such that the position of the circumferential center portion of the tip portion corresponding to is the position facing the circumferential center portion of the magnetic pole, It forms so that it may become a position which opposes between the two said magnetic poles adjacent to the circumferential direction.
  • the teeth of different phases adjacent to each other in the circumferential direction are arranged in a direction in which the winding drum portions are separated from each other.
  • the tip of each winding drum is connected to the circumferential end of each tip.
  • the position of the center in the circumferential direction of the tip of the tooth corresponding to one phase is the position facing the center in the circumferential direction of the magnetic pole, and the center in the circumferential direction of the tip of the tooth corresponding to the other phase
  • the tip portions of different phases are arranged close to each other.
  • the winding drum portion is formed so that the circumferential center portion of the tip portion and the tip of the winding drum portion are connected, the slot between the different-phase teeth becomes narrow, and the space factor decreases. For this reason, it can suppress that a slot becomes narrow by forming a winding drum part so that the tip of a winding drum part may be connected to the peripheral direction end of each tip part.
  • the winding drum portion in the two-phase rotating electrical machine according to the second aspect of the present invention, includes a circumferential central portion of the tip portion and a radial central portion of the stator. It extends so as to be approximately parallel to the connected straight line.
  • the magnetic flux formed by the armature coil wound around the teeth and the magnetic flux of the magnetic pole can be effectively used, and a decrease in the capability of the two-phase rotating electrical machine can be suppressed.
  • FIG. 1 is a plan view of a two-phase rotating electrical machine
  • FIG. 2 is a cross-sectional view of the two-phase rotating electrical machine.
  • the two-phase rotating electrical machine 1 is an outer rotor type used in, for example, a motorcycle, and the function of a generator provided with a permanent magnet and the starter motor function are integrated.
  • the two-phase rotating electrical machine 1 includes a flywheel 2 that rotates synchronously with an engine crankshaft (not shown), and a stator 4 that is fixed to an engine block (not shown). 18 is wound.
  • the flywheel 2 includes a base portion 50 formed in a substantially disc shape, and a flywheel main body 3 fixed to the stator 4 side (left side in FIG. 2) of the base portion 50.
  • a boss portion 51 is formed so as to protrude toward the stator 4 side at a substantially radial center of the base portion 50.
  • a through hole 52 into which a crankshaft (not shown) is inserted is formed at the central portion in the radial direction of the boss portion 51.
  • a key groove 53 is formed in the through hole 52, and a key (not shown) that engages with the key groove 53 is provided on a crank shaft (not shown).
  • the base part 50 and a crankshaft not shown become a state which cannot be relatively rotated.
  • the base part 50 is fixed to the base part 50 and the crankshaft by screwing a nut or the like into the tip of the crankshaft.
  • a plurality of insertion holes 54 are formed in the base portion 50 at equal intervals in the circumferential direction. The insertion hole 54 is formed so as to penetrate the base portion 50 in the thickness direction, and is configured such that the rivet 27 for fixing the flywheel main body 3 and the base portion 50 is inserted.
  • the flywheel body 3 is formed in a bottomed cylindrical shape from a metal having magnetism.
  • a through hole 31b is formed in the bottom wall 31 of the flywheel main body 3 at substantially the center in the radial direction.
  • the boss portion 51 of the base portion 50 and a crankshaft (not shown) are inserted into the through hole 31b.
  • an insertion hole 32 penetrating in the thickness direction is formed in the bottom wall 31 of the flywheel body 3 at a position corresponding to the insertion hole 54 of the base portion 50.
  • the flywheel main body 3 and the base portion 50 are integrated by inserting the rivet 27 into the insertion holes 54 and 32 and buckling the tip of the rivet 27.
  • peripheral wall 33 of the flywheel body 3 permanent magnets 8 magnetized to 12 poles are provided on the inner peripheral surface side so that the magnetic poles are alternately changed in the circumferential direction.
  • a ferrite magnet is used as the permanent magnet 8.
  • a projecting rib 71 is integrally formed on the peripheral wall 33 of the flywheel body 3 on the outer peripheral surface side.
  • the reluctator 71 is for detecting the ignition timing of the engine and is used together with a pulse generator 72 described later.
  • the pulse generator 72 is disposed so as to face the reluctator 71 formed on the outer peripheral surface of the peripheral wall 33 of the flywheel main body 3. Then, the edge portion (corner portion) of the reluctator 71 crosses the pulse generator 72 to generate a pulse signal (positive voltage pulse and negative voltage pulse) from the pulse generator 72, which is supplied to a control unit (not shown).
  • a CDI unit or the like can receive the information about the rotational speed of the engine and the rotational angle of the crankshaft (not shown). For example, the ignition timing of the engine is controlled based on engine rotation speed information and crankshaft rotation angle information obtained by the reluctator 71 and the pulse generator 72.
  • FIG. 3 is a plan view of the stator.
  • the stator 4 has a stator core 17 disposed inside the peripheral wall 33 of the flywheel body 3.
  • the stator core 17 is formed by laminating plate materials such as electromagnetic steel plates in the axial direction.
  • the stator core 17 has a substantially annular stator body 17a.
  • a clearance hole 17b is formed in the radial center of the stator body 17a in order to avoid interference with the boss portion 51 of the flywheel 2 and a crankshaft (not shown). Further, a plurality of bolt insertion holes 20 are formed in the stator body 17a along the circumferential direction. These bolt insertion holes 20 are used for fastening and fixing the stator 4 to the engine block by inserting bolts (not shown).
  • the outer periphery of the stator body 17a is provided with 16 teeth 16 protruding in the radial direction and arranged in the circumferential direction. And between each tooth
  • the armature coil 18 is passed through the slot 21, and the armature coil 18 is wound on each tooth 16 from above the insulator 40 attached to the stator core 17.
  • the number of magnetic poles is P
  • the number of teeth 16 is T
  • n a natural number
  • 12 permanent magnets 8 are provided so that the magnetic poles are alternately changed in the circumferential direction, so the number P of the magnetic poles is 12.
  • the expression (2) is satisfied.
  • the teeth 16 of the two-phase rotating electrical machine 1 are the same in which the armature coil 18 of one phase is wound with two forming the slot 21 (see A part in FIG. 3) that is present with a mechanical angle shifted by 90 °.
  • the teeth 16a and 16a are configured as phases, and the other teeth 16 are configured as teeth 16b and 16b of the same phase around which the armature coil 18 of the other phase is wound.
  • the armature coil 18 constitutes a two-phase magnetic circuit whose phase is shifted by 90 °.
  • the in-phase teeth 16a, 16a around which the one-phase armature coil 18 is wound are simply referred to as one-phase teeth 16a, and the other-phase armature coil 18 is referred to as the other-phase armature coil 18.
  • the wound in-phase teeth 16b and 16b will be simply referred to as the other-phase teeth 16b.
  • the teeth 16a and 16b may be simply referred to as the teeth 16 for explanation.
  • FIG. 4 is an enlarged view of the teeth.
  • the teeth 16 are formed integrally with a winding drum 61 that extends along the radial direction and around which the armature coil 18 is wound, and a tip of the winding drum 61. It is comprised by the front-end
  • the distal end portion 62 of the one-phase tooth 16 a is disposed such that the position of the center portion in the circumferential direction faces the position of the center portion in the circumferential direction of the permanent magnet 8.
  • the tip 62 of the other phase tooth 16b is disposed so that the position of the central portion in the circumferential direction faces the space between the two permanent magnets 8 and 8 adjacent in the circumferential direction.
  • the interval W1 between the tip portions 62 and 62 of the teeth 16a and 16b that are adjacent to each other in the circumferential direction is the tooth 16a of one phase that is adjacent in the circumferential direction.
  • 16a, and the interval W2 between the tip portions 62, 62 of the teeth 16b, 16b of the other phase adjacent in the circumferential direction are formed so as to be displaced in directions away from each other.
  • the tip of the winding drum 61 is connected to the tip 62 of the one-phase tooth 16a at the end opposite to the tip 62 of the other-phase tooth 16b. Further, the tip of the winding drum 61 is connected to the tip 62 of the other phase of the tooth 16b at the end opposite to the tip 62 of the one phase of the tooth 16a.
  • each winding drum portion 61 extends such that the center line L1 is substantially parallel to a straight line L2 connecting the center C1 of the stator 4 and the circumferential center portion C2 of each tip portion 62. Yes.
  • the terminal of the armature coil 18 wound around the tooth 16 thus configured is led to the vicinity of the drawing position of the harness 26 and connected to the harness 26.
  • the harness 26 supplies current to the armature coil 18 and supplies the generated current to an external battery or the like.
  • the tip 62 of the one-phase tooth 16a is arranged so that the position of the circumferential center portion thereof faces the position of the circumferential center portion of the permanent magnet 8, and the other-phase tooth 16b.
  • the tip portion 62 is disposed so that the position of the central portion in the circumferential direction faces the space between the two permanent magnets 8 and 8 adjacent in the circumferential direction.
  • gear 16a of one phase is arrange
  • each winding drum 61 extends so that the center line L1 is substantially parallel to a straight line L2 connecting the center C1 of the stator 4 and the circumferential center C2 of each tip 62. .
  • the interval W1 between the tip portions 62, 62 of the teeth 16a, 16b adjacent to each other in the circumferential direction is equal to the interval W2 between the tips 62, 62 of the teeth 16a, 16a adjacent in the circumferential direction, and the circumference.
  • the winding drum portions 61, 61 of the teeth 16a, 16b of different phases are arranged so as to be separated from each other.
  • the slot 21 between the different-phase teeth 16a and 16b can be prevented from becoming narrow. For this reason, this slot 21 can be made as large as possible. Therefore, a decrease in the space factor of the armature coil 18 can be suppressed, and further, the ability of the two-phase rotating electrical machine 1 can be improved.
  • the present invention is not limited to the above-described embodiment, and includes various modifications made to the above-described embodiment without departing from the spirit of the present invention.
  • the two-phase rotating electrical machine 1 is provided with the permanent magnets 8 magnetized to 12 poles so that the magnetic poles are alternately changed in the circumferential direction, and the number T of the teeth 16 is set to 16.
  • the present invention is not limited to this.
  • the number P of magnetic poles and the number T of teeth 16 are expressed by Equation (2). It only has to be set to satisfy.
  • the magnetic flux formed by the armature coil wound around the teeth and the magnetic flux of the magnetic pole can be effectively used, and a decrease in the capability of the two-phase rotating electrical machine can be suppressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

Dans cette machine électrique tournante à deux phases, le nombre (P) de pôles magnétiques et le nombre (T) de dents (16) sont réglés afin de satisfaire P:T=4n:4(n+1), où P est le nombre de pôles magnétiques, T est le nombre de dents (16), et n est un nombre entier naturel. Les dents (16) comprennent chacune : une partie de tambour d'enroulement (61) qui s'étend le long de la direction radiale, et a une bobine d'armature enroulée autour de celle-ci ; et une partie d'extrémité (62) qui s'étend depuis l'extrémité de la partie de tambour d'enroulement (61) le long de la direction circonférentielle. La partie de centre circonférentielle de chaque partie d'extrémité (62) correspondant à une phase est positionnée afin de faire face à la partie de centre circonférentielle d'un pôle magnétique, et la partie de centre circonférentielle de chaque partie d'extrémité (62) correspondant à l'autre phase est positionnée afin de faire face à la zone entre deux pôles magnétiques adjacents dans la direction circonférentielle.
PCT/JP2013/077316 2012-10-19 2013-10-08 Machine électrique tournante à deux phases WO2014061501A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IN3052DEN2015 IN2015DN03052A (fr) 2012-10-19 2013-10-08
CN201380053656.3A CN104718688A (zh) 2012-10-19 2013-10-08 两相旋转电机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012231907A JP5952709B2 (ja) 2012-10-19 2012-10-19 二相回転電機
JP2012-231907 2012-10-19

Publications (1)

Publication Number Publication Date
WO2014061501A1 true WO2014061501A1 (fr) 2014-04-24

Family

ID=50488070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/077316 WO2014061501A1 (fr) 2012-10-19 2013-10-08 Machine électrique tournante à deux phases

Country Status (4)

Country Link
JP (1) JP5952709B2 (fr)
CN (1) CN104718688A (fr)
IN (1) IN2015DN03052A (fr)
WO (1) WO2014061501A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018038160A (ja) * 2016-08-31 2018-03-08 シナノケンシ株式会社 ブラシレスモータ

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6502239B2 (ja) * 2015-11-10 2019-04-17 株式会社ミツバ 二相回転電機
JP6720032B2 (ja) * 2016-09-09 2020-07-08 株式会社ミツバ 回転電機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001186693A (ja) * 1999-12-27 2001-07-06 Matsushita Refrig Co Ltd スイッチトリラクタンスモータ
JP2008289283A (ja) * 2007-05-17 2008-11-27 Shinano Kenshi Co Ltd 磁気軸受部を有する電動機
JP2009213259A (ja) * 2008-03-04 2009-09-17 Mitsuba Corp 磁石発電機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001186693A (ja) * 1999-12-27 2001-07-06 Matsushita Refrig Co Ltd スイッチトリラクタンスモータ
JP2008289283A (ja) * 2007-05-17 2008-11-27 Shinano Kenshi Co Ltd 磁気軸受部を有する電動機
JP2009213259A (ja) * 2008-03-04 2009-09-17 Mitsuba Corp 磁石発電機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018038160A (ja) * 2016-08-31 2018-03-08 シナノケンシ株式会社 ブラシレスモータ

Also Published As

Publication number Publication date
CN104718688A (zh) 2015-06-17
JP5952709B2 (ja) 2016-07-13
JP2014087097A (ja) 2014-05-12
IN2015DN03052A (fr) 2015-10-02

Similar Documents

Publication Publication Date Title
JP5739651B2 (ja) ロータ及びモータ
JP4440275B2 (ja) 三相回転電機
JP5796569B2 (ja) 回転子、および、これを用いた回転電機
JP3785982B2 (ja) 回転電機
JPWO2003012956A1 (ja) 回転電機
JP2008271640A (ja) アキシャルギャップ型モータ
JP6561692B2 (ja) 回転電機
JP6048191B2 (ja) マルチギャップ型回転電機
JP2007267565A (ja) コアレスモータ
JP2016174521A (ja) 単相ブラシレスモータ
CN114946111A (zh) 磁齿轮复合旋转电机
JP5741960B2 (ja) 回転子およびそれを用いた回転電機
JP2010022088A (ja) 磁石回転型回転電機
WO2014061501A1 (fr) Machine électrique tournante à deux phases
CN103532328A (zh) 旋转电机
WO2018030153A1 (fr) Machine électrique rotative triphasée pour générateur-démarreur
JP2007116847A (ja) クローポール型モータ
JP5805046B2 (ja) 車両用電動機および車両用発電機
JP5973601B2 (ja) ロータ及びモータ
JP6502239B2 (ja) 二相回転電機
WO2011036723A1 (fr) Génératrice synchrone
JP7318556B2 (ja) ロータ
JP7367552B2 (ja) ロータ
JP6244414B2 (ja) ランデル型ロータ及びランデル型モータ
JP6276364B2 (ja) ブラシレスモータ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13846804

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: IDP00201502885

Country of ref document: ID

122 Ep: pct application non-entry in european phase

Ref document number: 13846804

Country of ref document: EP

Kind code of ref document: A1