WO2008067706A1 - Stator destiné à un générateur à aimant permanent à rotor interne multipôles - Google Patents

Stator destiné à un générateur à aimant permanent à rotor interne multipôles Download PDF

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Publication number
WO2008067706A1
WO2008067706A1 PCT/CN2007/002122 CN2007002122W WO2008067706A1 WO 2008067706 A1 WO2008067706 A1 WO 2008067706A1 CN 2007002122 W CN2007002122 W CN 2007002122W WO 2008067706 A1 WO2008067706 A1 WO 2008067706A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
permanent magnet
magnet generator
inner rotor
rotor
Prior art date
Application number
PCT/CN2007/002122
Other languages
English (en)
Chinese (zh)
Inventor
Henglin Xiao
Original Assignee
Wuxi Kipor Power Co., Ltd
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 Wuxi Kipor Power Co., Ltd filed Critical Wuxi Kipor Power Co., Ltd
Publication of WO2008067706A1 publication Critical patent/WO2008067706A1/fr

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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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1815—Rotary generators structurally associated with reciprocating piston engines

Definitions

  • the invention relates to a stator of a multi-pole inner rotor type permanent magnet generator, in particular to a generator which is suitable for miniaturization, weight reduction and thinning, and belongs to the technical field of generators.
  • a stator of a permanent magnet generator has been disclosed in the prior art.
  • a motor generator as disclosed in the application No. PCT/US2004/015485 includes a plurality of permanent magnet elements. a rotor, the permanent magnets are disposed on the annular structure around the rotating shaft, the magnetic elements are continuously alternating along the inner ring surface, and further comprise a stator separated from the rotor by a radial air gap, the stator comprising a plurality of magnetic core segments
  • the core segment has respective coils wound thereon to form stator windings, each stator segment being spaced apart from each other without being in direct contact and disposed along a radial air gap, each stator segment including a plurality of mutually aligned axes parallel to the axis of rotation
  • the pole, therefore the stator comprises a plurality of radially arranged stator poles, which are arranged axially apart from one another.
  • stator of an alternator disclosed in JP2001-281347, wherein the stator winding has three aliquot windings each of which is wound on each of the three slots, and the slot receiving portion of the wire is formed into a section
  • the rectangular shape and the winding end portion form a circular cross section, and the stator winding can be formed by the aliquot winding, the damage of the insulating film of the wire can be suppressed, and the short circuit accident between the wires can be reduced.
  • the stator structure of the above-disclosed generator has many components, complicated structures, or requires cabinet mounting, and such a structure is difficult to be miniaturized, lightweight, and thinned. And such a structure cannot be made into a large power, and is used only in a low power range.
  • the object of the present invention is to overcome the above-mentioned deficiencies, and to provide a stator of a multi-pole inner rotor type permanent magnet generator, wherein the stator body faces the inner side of the rotor with a number of permanent magnets accommodated by the 3:2 rotor a wire slot, and a plurality of coils are embedded therein; the stator punching piece is provided with a plurality of bolt holes parallel to the direction of the rotation axis, and one end surface of the stator is directly fixed to the stator seat of the engine assembly through the bolt holes;
  • the cabinet is simple and compact, and the generator is thinner, lighter, and smaller, and achieves high output efficiency and high power output.
  • the main solution of the invention is achieved in this way:
  • the stator punching piece is superimposed by the stator self-retaining groove to form a stator body, and the stator body faces the inner side surface of the rotor with a stator wire groove (3: 2 rotor-retained permanent magnet number), and has a plurality of stators.
  • the winding is embedded therein; the characteristic is that the stator body is provided with a plurality of stator bolt holes in a direction parallel to the axis of the rotating shaft, and one end surface of the stator body is directly fixed to the stator seat of the engine assembly through the stator bolt holes.
  • the stator bolt holes of the present invention are at least three or more and include three.
  • stator windings in the stator slot of the present invention are wound into a Y-type or a three-phase three-wire ⁇ type of three-phase four-wire system.
  • the stator body of the present invention faces the inner side of the rotor with an integral multiple of 3n of stator slots, and the number of permanent magnets of the rotor is an even number of 2n.
  • the stator seat of the present invention is provided with a stator seat positioning port that cooperates with the generator base.
  • the stator slot on the inner side surface of the stator of the present invention is disposed along the axial direction of the stator body side and parallel to the shaft center line.
  • the outer ring of the stator of the invention is provided with at least two grooves and at least three positioning bosses along the direction of the axis of the rotation axis.
  • the stator body is provided with a plurality of bolt holes at least three in parallel with the direction of the rotation axis, and one end surface of the stator is directly fixed to the generator base of the engine by bolts through the bolt holes.
  • the casing simplifies the structure to the extent that the generator is thinner, lighter and smaller, and achieves high output efficiency and high power output.
  • the three-phase four-wire system is used for the stator coils embedded in the wire slot.
  • the type connection method or the three-phase three-wire ⁇ type connection method has high application flexibility and can adapt to different power output requirements of the generator; the number of stator slots provided on the inner side of the stator body facing the rotor is 3n, the number of rotor poles is 2n, and ⁇ is a natural number.
  • stator body is provided with the generator base
  • the mating stator seat positioning port can make the stator assembly easy to install; because a plurality of wire grooves on the side surface of the stator body are arranged along the axial direction of the inner side surface of the stator Parallel to the axis of the shaft, the stator assembly can be combined with the rotor assembly to improve power generation efficiency; since at least two grooves are provided along the center of rotation of the outer ring of the stator, the weight can be reduced and the heat dissipation holes can be doubled.
  • the heat dissipation area provides reasonable cooling for the stator assembly, realizing The thinner, lighter and smaller size of the generator makes it easier to make the generator more powerful and has good stability, durability and reliability.
  • FIG. 1 is a schematic view showing the state in which the stator assembly of the present invention is used for a generator set
  • FIG. 2 is a schematic view showing the assembly of the stator assembly and the rotor assembly of the present invention
  • FIG. 3 is a cross-sectional view of the stator assembly A-A of the present invention.
  • Figure 4 is a stator punching diagram of the present invention
  • FIG. 5 is a wiring diagram of the stator winding of the present invention.
  • the embodiment mainly consists of an engine assembly 1, a stator seat 2, a rotor seat 3, a rotor assembly 4, a bolt 5, a stator assembly 6, a bolt 7, a stator seat positioning port 8, a rotor seat positioning port 9, and a stator positioning circle 10.
  • stator The wire groove 22, the stator boss 23, the stator groove 24, the positioning circle 25 in the rotor, and the like are composed.
  • stator assembly 6 of the present invention and the rotor assembly 4 including the permanent magnets 16 form a generator, and the generator and an engine assembly 1 constitute a generator set.
  • the stator assembly 6 of the present invention is composed of a stator body 17, a stator winding 12, and a blade 15 which are formed by superposing stator strips 20 through stator self-retaining grooves 21.
  • the stator body 17 of the stator assembly 6 is engaged with the stator seat positioning port 8 via the stator positioning circle 10, and is fixedly mounted to the stator base 2 of the engine assembly 1 by a plurality of bolts 7 through the stator bolt holes 11.
  • the stator inner hole 19 is concentrically mounted with the stator rotation center 18, and the rotor assembly 4 is provided with a rotor vent hole 14 which is engaged with the rotor seat positioning opening 9 through the inner rotor positioning circle 25, and is fixed by the plurality of bolts 5 through the rotor bolt hole 13.
  • the rotor seat 3 is fixed to the flywheel of the engine or integrated with the flywheel to rotate synchronously with the crankshaft of the engine, and the center of rotation of the rotor coincides with the center of the crankshaft of the engine, in the stator
  • There is a certain gap between the hole 19 and the outer circumference of the rotor which leaves room for the reduction of the gap caused by the expansion of the stator assembly 6 and the rotor assembly 4 to prevent the rotor assembly 4 from rubbing against the stator when rotating with the engine crankshaft. Damage caused by the holes 19.
  • the stator punching hole 20 of the stator body 17 is provided with a stator bolt hole 11, a stator self-retaining groove 21, and a stator inner hole 19 parallel to the rotation center 18 of the stator body.
  • 11 is disposed at least three or more, and includes three; the stator body 17 is formed by the stator punch 20
  • the stator self-retaining slots 21 are concentrically stacked, and a plurality of sets of stator windings 12 are embedded in the stator trunking 22 and closed by inserts 15.
  • the stator slot 22 of the stator body 17 has an integral multiple of 3 on the inner side surface of the rotor: 1 2 3 ...
  • the stator wire grooves 22 on the inner side surface of the stator punching piece 20 of the stator body 17 are disposed along the axial direction of the inner side surface of the stator body 17, and are parallel to the axial center line.
  • the outer ring of the stator punching piece 20 of the stator body 17 is provided with at least two grooves 24 and at least three positioning bosses 23 along the axis of the rotation axis.
  • the stator winding 12 in the stator slot 22 of the present invention is wound into a ⁇ type of a three-phase four-wire type or a three-phase three-wire type.
  • the stator main winding 12 coil of this embodiment adopts a ⁇ -type three-phase four-wire connection method (UVW ⁇ ), and there are two sets of secondary windings (HI H2, Rl R2 ), and two coils of each group of the main winding are parallel to
  • the two slots of the center of rotation of the stator body are interposed in the stator slot 22 so that each set of coils of the main winding has substantially the same length, which saves the use of the enameled wire of the coil and reduces the manufacturing cost.

Landscapes

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

Abstract

La présente invention concerne un stator destiné à un générateur à aimant permanent à rotor interne multipôles dans lequel des tôles (20) de stator sont formées de manière à constituer un corps (17) de stator au moyen de fentes (21) de stator à fermeture automatique. Le corps (17) de stator est situé en face des fentes (21) de stator qui sont disposées sur la surface interne du rotor. Le nombre de fentes (21) du stator est égal au nombre de celles des aimants permanents qui sont logées dans le rotor. Plusieurs enroulements (12) de stator sont disposés en couche dans le stator. Cette invention se caractérise en ce que le corps de stator est doté d'une pluralité de trous (11) de boulons du stator se trouvant dans la direction parallèle aux axes de rotation. Une face terminal du corps (17) de stator est fixée directement à une base de stator d'un moteur intégré (1), au moyen des trous (11) de boulons du stator.
PCT/CN2007/002122 2006-12-07 2007-07-11 Stator destiné à un générateur à aimant permanent à rotor interne multipôles WO2008067706A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2006100981898A CN100452616C (zh) 2006-12-07 2006-12-07 一种多极内转子式永磁发电机的定子
CN200610098189.8 2006-12-07

Publications (1)

Publication Number Publication Date
WO2008067706A1 true WO2008067706A1 (fr) 2008-06-12

Family

ID=38704163

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002122 WO2008067706A1 (fr) 2006-12-07 2007-07-11 Stator destiné à un générateur à aimant permanent à rotor interne multipôles

Country Status (2)

Country Link
CN (1) CN100452616C (fr)
WO (1) WO2008067706A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108880020A (zh) * 2018-08-06 2018-11-23 南京磁谷科技有限公司 一种大功率高速电机的外插式拼接定子结构
FR3078452A1 (fr) * 2018-02-28 2019-08-30 Ge Energy Power Conversion Technology Limited Tole magnetique statorique, procede et machine electrique tournante associes
EP2226920B1 (fr) * 2009-03-06 2021-02-17 LichtBlick ZuhauseKraftwerk GmbH Système de cogénération avec un moteur à combustion à piston et une machine électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10148140B2 (en) * 2013-01-28 2018-12-04 Denso Corporation Motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1194308A (en) * 1969-03-19 1970-06-10 Wagner Electric Corp A Stator for an Electric Motor.
CN2413424Y (zh) * 2000-03-07 2001-01-03 周建业 一种磁电机铁芯
JP2003235184A (ja) * 2002-02-01 2003-08-22 Yaskawa Electric Corp 回転電機

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JPH02155449A (ja) * 1988-12-06 1990-06-14 Mitsubishi Electric Corp 電動機の固定子製造方法
CN2133092Y (zh) * 1992-08-17 1993-05-12 顺德县桂洲镇华口五金电器厂 手扶拖拉机的灯光电源装置
JPH07143714A (ja) * 1993-11-16 1995-06-02 Toyota Motor Corp 同期機のステータ構造および同期型モータ
CN2179658Y (zh) * 1993-12-26 1994-10-12 昆明市福海电子器材厂 一种无轴承低转速中频弧焊发电机
US6429567B1 (en) * 2000-12-27 2002-08-06 General Electric Company Power generator
DE60322016D1 (de) * 2003-02-18 2008-08-21 Minebea Co Ltd Rotor und Stator einer elektrischen Maschine mit reduziertem pulsierenden Moment
CN1540838A (zh) * 2003-10-29 2004-10-27 刘宝生 一种制造高效低速磁力发电机的方法
CN200980003Y (zh) * 2006-12-07 2007-11-21 无锡开普动力有限公司 一种多极内转子式永磁发电机的定子

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1194308A (en) * 1969-03-19 1970-06-10 Wagner Electric Corp A Stator for an Electric Motor.
CN2413424Y (zh) * 2000-03-07 2001-01-03 周建业 一种磁电机铁芯
JP2003235184A (ja) * 2002-02-01 2003-08-22 Yaskawa Electric Corp 回転電機

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2226920B1 (fr) * 2009-03-06 2021-02-17 LichtBlick ZuhauseKraftwerk GmbH Système de cogénération avec un moteur à combustion à piston et une machine électrique
FR3078452A1 (fr) * 2018-02-28 2019-08-30 Ge Energy Power Conversion Technology Limited Tole magnetique statorique, procede et machine electrique tournante associes
EP3534495A1 (fr) * 2018-02-28 2019-09-04 GE Energy Power Conversion Technology Ltd. Feuille magnétique de stator, procédé associé et machine électrique rotative
US10903698B2 (en) 2018-02-28 2021-01-26 Ge Energy Power Conversion Technology Limited Stator magnetic sheet, associated method and rotating electrical machine
CN108880020A (zh) * 2018-08-06 2018-11-23 南京磁谷科技有限公司 一种大功率高速电机的外插式拼接定子结构
CN108880020B (zh) * 2018-08-06 2024-06-04 南京磁谷科技股份有限公司 一种大功率高速电机的外插式拼接定子结构

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Publication number Publication date
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CN101005216A (zh) 2007-07-25

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