WO2012033302A2 - Procédé de fabrication d'un stator segmenté et stator fabriqué selon ce procédé - Google Patents

Procédé de fabrication d'un stator segmenté et stator fabriqué selon ce procédé Download PDF

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Publication number
WO2012033302A2
WO2012033302A2 PCT/KR2011/006459 KR2011006459W WO2012033302A2 WO 2012033302 A2 WO2012033302 A2 WO 2012033302A2 KR 2011006459 W KR2011006459 W KR 2011006459W WO 2012033302 A2 WO2012033302 A2 WO 2012033302A2
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WO
WIPO (PCT)
Prior art keywords
core
stator
segment
cores
assembly
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Application number
PCT/KR2011/006459
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English (en)
Korean (ko)
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WO2012033302A3 (fr
Inventor
김병수
Original Assignee
주식회사 아모텍
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Publication date
Application filed by 주식회사 아모텍 filed Critical 주식회사 아모텍
Publication of WO2012033302A2 publication Critical patent/WO2012033302A2/fr
Publication of WO2012033302A3 publication Critical patent/WO2012033302A3/fr

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    • 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
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • 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
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles

Definitions

  • the present invention relates to a method for manufacturing a segmented stator and a stator using the same, and more particularly, as one side of a plurality of unit cores is connected to each other to form a segment core constituting a part of the stator core.
  • the present invention relates to a method of manufacturing a segmented stator and a stator using the same, which can dramatically reduce the work time by dramatically simplifying the work process.
  • the motor includes a rotor and a stator, and provides a driving force through the rotation of the rotor by applying power to the stator.
  • a motor is completed through the manufacture of the rotor and the stator, respectively, and then joined together.
  • the rotor and the stator core is usually produced by press-lamination after the sheet punched from the silicon steel sheet is processed through the notching and separation operation.
  • FIG. 1 is an exemplary diagram of an inner rotor motor having a conventional integrated stator core structure.
  • the integrated inner rotor type motor 10 shown in FIG. 1 has a three-phase four-pole-6 slot structure in which the stator core 1 has six T-type teeth 3 in an annular frame 2. Extends in the axial direction, and there are six slots 4 between the six T-shaped teeth 3 and the teeth 3 so that the winding jig is inserted therebetween, and the coil 5 is wound. have.
  • the inner rotor type motor 10 having the integrated stator core structure has a rotating magnetic field when power is applied to the coil 5 of the stator so that the center of the rotating shaft 7 is interacted with each other by the interaction between the permanent magnets 6 of the rotor.
  • FIG. 2 is an exemplary view of an inner rotor type motor having a conventional split stator core structure.
  • the split inner rotor type motor 20 shown in FIG. 2 has a three-phase four-pole-6 slot structure, which is divided into six split stator cores 11a to 11f, and then coils 15 to each. ), And the wound stator cores 11a to 11f are assembled in an annular shape using the groove structure A.
  • Each of the split stator cores 11a to 11f includes a split frame 12 and a T-shaped tooth 13 extending in the axial direction and, as assembled in an annular shape, the T-shaped tooth 13 and the tooth 13.
  • the slot 14 is formed in between.
  • the split inner rotor type motor 20 is a permanent magnet in which N poles and S poles alternately magnetized on the rotating shaft 17 when the power is applied to the coil 15 of the stator. 16) provides a driving force by rotating the annular rotor made of.
  • each of the divided stator cores 11a to 11f can improve the efficiency of the winding operation according to the individual windings, the individual terminals for the coils 15 are phased (soldered). That is, as the polarization increases, the motor 20 of the split core structure increases working time for processing individual terminals due to an increase in connection points.
  • the split inner rotor type motor 20 requires 12 connection points in the case of six coil groups.
  • the Republic of Korea Patent No. 4,465,1 uses a core segment serial body obtained by connecting a split core sheet formed with a connection convex portion having a planar arc shape, and a connection concave portion to which the connection convex portion is coupled. Therefore, a technique for manufacturing a stator having excellent workability and magnetoresistance characteristics has been proposed.
  • the connecting convex portions of adjacent one core segments are joined to the connecting recesses formed in the other core segment to form a core segment serial body, and the core segment serial body is formed in a ring shape to form a magnetic circuit.
  • the core assembly serially solves the problem of assemblability which is indicated as a problem of the divided core structure.
  • the present invention solves the problem of assembly of each unit core in the manufacture of the stator of the conventional split core structure to significantly simplify the work process for the manufacture of the stator to shorten the working time and at the same time during the core molding It is an object of the present invention to provide a segmented stator manufacturing method capable of minimizing loss of material and a stator using the same.
  • the present invention comprises the steps of punching a thin plate to obtain a segment core arranged in a straight line and connected to each other via a movable connection; Stacking a plurality of segment cores to obtain an assembly segment core; Forming a bobbin on each unit core of the assembly segment core; Winding a coil to the assembly segment core to obtain an assembly segment core wound with a coil; And arranging the assembly segment cores wound around two adjacent coils in a circle and connecting them to each other to obtain a stator.
  • the punching molding it is preferable to alternately arrange the teeth of the unit core of one segment core so as to face each other with the teeth of the other segment core to simultaneously punch out at least one pair of segment cores.
  • the stopper function portion is punched into the movable connection portion to prevent the segment core from being bent out of the circle at the inner portion to be bent when the segment core is arranged in a circular shape.
  • the bobbin is preferably formed by insert molding using a thermosetting resin.
  • the winding step is characterized in that by using a three-axis winding machine continuously winding three coils for each of the U, V, W phase according to the three-phase driving method of U, V, W.
  • the direction of the tooth is arranged in a circular direction by selecting any one of the inside and the outside.
  • the present invention includes a stator core formed by connecting at least two assembly segment cores in which a plurality of unit cores are stacked with a plurality of unit cores connected to each other through a movable connection, and then connecting the assembly segment cores to each other; Bobbins formed in each unit core of the assembly segment core; And a coil wound around the assembly segment core.
  • the stator core is characterized in that in the unit core of the assembly segment core, the tooth direction is selected and arranged in a circle of any one of the inside and the outside.
  • the stator cores connect two adjacent assembly segment cores to each other using any one of a pin coupling method, a rivet coupling method, and a groove coupling method, and according to the coupling method, both ends of the two assembly segment cores.
  • a predetermined coupling portion is formed in the.
  • the present invention has the effect of minimizing the loss of the core material by simultaneously punching a pair of segment cores constituting part of the stator core.
  • the present invention has the effect of minimizing the mold investment by stacking a plurality of segment cores to form an assembly segment core to form a bobbin in a batch molding method for each unit core.
  • the present invention has the effect of high winding efficiency and minimizing the wiring for each coil by stacking a plurality of segment cores to form an assembly segment core and winding coils at least two unit cores at the same time.
  • the present invention can easily implement the inner rotor method and the outer rotor method selectively.
  • FIG. 1 is an exemplary diagram of an inner rotor motor having a conventional integrated stator core structure.
  • Figure 2 is an illustration of an inner rotor type motor having a conventional split stator core structure
  • Figure 3 is a flow chart for a split stator manufacturing method applied to the inner rotor structure according to the present invention
  • 4A is an exemplary view showing a manufacturing example of a segment core by punching molding of the present invention.
  • 4B is an explanatory view of an insert molding process for forming a bobbin according to the present invention.
  • 4c is an explanatory diagram of a winding process for a segment core of the present invention.
  • Figure 4d is an explanatory diagram for the connection and assembly process for the segment core of the present invention.
  • 4E is a schematic diagram showing the structure of a stator to which a segment core of the present invention is applied to an outer rotor type structure;
  • Figure 5d is an illustration of the core coupling portion according to the groove and the pin coupling method of the segment core of the present invention
  • 5E is a detail view of the engagement portion of the assembly segment core of FIG. 5D;
  • FIG. 5F is an explanatory view showing a coupling state of a pair of assembly segment cores of FIG. 5E.
  • the stator 30 of the present invention is a segmented structure by arranging and connecting to a reducing phase by using a plurality of segment cores 30a to 30c forming a group in a structure in which a plurality of unit cores 30a 1 to 30c 9 are sequentially connected.
  • a three-phase driving method a structure in which three segment cores 30a to 30c, which are composed of 27 unit cores 30a 1 to 30c 9 and each form a three-phase core group of U, V, and W, are connected to each other, respectively. It is assumed that a stator is manufactured.
  • each segment core (30a to 30c) since the manufacturing process of each segment core (30a to 30c) is the same, it will be described with respect to one segment core (30a), and the manufacturing process for the other segment core (30b, 30c) easily understood by those skilled in the art could be.
  • segment core 30a will be described using a single thin plate form (that is, step S101) and an assembly form in which a plurality of thin plates are stacked (that is, steps S102 to S104). .
  • stator core a manufacturing process of the stator core will be described in detail with reference to FIGS. 3 to 5C.
  • At least one pair of segment cores 30a and 30b is formed by pressing the teeth C of the unit cores 30a 1 to 30a 9 to each other in a strip-shaped magnetic steel sheet S.
  • FIG. It is separated from the magnetic steel sheet (S) through processing.
  • segment cores 30a are connected to each other through a movable connection part B which can be machined into a circle in the form of a stator core for each of the nine unit cores 30a 1 to 30a 9 .
  • the unit cores 30a 1 to 30a 9 form an I-shape.
  • the upper slots in the drawing are connected to each other through the adjacent unit core and the movable connection part B, and the lower slots in the drawing are opposed to the rotor.
  • stopper function B1 is further punched into the movable connection part B to prevent the bending out of the circle at the inner portion that is bent in a circle (see FIG. 4B).
  • the segment core 30a constitutes a part of the stator core by connecting the nine unit cores 30a 1 to 30a 9 to each other through the movable connection part B. As shown in FIG. Here, three segment cores 30a to 30c are connected to each other to form a stator core.
  • the segment core 30a is a form in which nine unit cores 30a 1 to 30a 9 are unfolded on a straight line and correspond to one third of the stator core.
  • the segment core 30a has a structure in which one unit C is connected to each of the nine unit cores 30a 1 to 30a 9 to form a body and has one tooth C for each unit core 30a 1 to 30a 9 . .
  • the segment core 30a is connected to the teeth C through the connection by the movable connection B, which can determine the direction of the teeth C of the nine unit cores 30a 1 to 30a 9 inward or outward.
  • the movable connection portion (B) is formed to a thickness of about 0.1mm to 1mm to maintain the desired shape without cutting even if the movement of the unit core (30a 1 to 30a 9 ) in the stator core manufacturing.
  • the teeth C of the segment cores 30a are alternately disposed to face each other with the teeth C of the adjacent segment cores 30b, thereby making it possible to at least the two segment cores 30a and 30b. It can be punched out at the same time. This can contribute to maximizing core material yield (minimizing loss), minimizing mold investment cost due to the enlargement of mold, and improving core productivity.
  • segment cores 30a obtained in the form of a thin plate (eg, 40 sheets) are stacked to form the segment cores 30a in an assembly form, and then an insert molding process is performed (S102).
  • the segment core 30a is integrally assembled with the bobbin 31 through insert molding using a thermosetting resin.
  • the bobbin 31 made of an insulating material is coupled to the outer circumference of each of the nine unit cores 30a 1 to 30a 9 .
  • the bobbin 31 is a space in which the coil can be wound, and the first and second flanges 31b and 31c which are bent and extended on both sides of the rectangular cylindrical portion 31a and the rectangular cylindrical portion 31a of the middle portion, respectively. Is made of.
  • the first and second flanges 31b and 31c are formed in different sizes according to the lengths of the upper side and the lower side of the unit cores 30a 1 to 30a 9 , in particular the first flange 31b has the movable connection portion B. ) Without being covered, so that the movable connection part B can be maintained.
  • the segment core 30a may be subjected to insert molding on nine unit cores 30a 1 to 30c 9 arranged in a straight line to simplify the process and minimize mold investment.
  • insert molding processes are individually performed on nine unit cores constituting one segment core 30a, the process is complicated and time-consuming.
  • the segment core 30a is divided into U, N, and N for the nine unit cores 30a 1 to 30c 9 by a conventional three-axis winding machine.
  • Coils L1, L2, and L3 are wound at the same time for each of the V and W phases.
  • the coils L1, L2, L3 correspond to each of the U, V, and W phases
  • the coils of the U phase are continuously wound on the first, fourth, and seventh unit cores 30a 1 , 30a 4 , 30a 7 , and V Coils of phase are continuously wound on the second, fifth and eighth unit cores 30a 2 , 30a 5 , 30a 8
  • coils of the phase W are continuously wound on the third, sixth and ninth unit cores 30a 3 , 30a 6 , 30a 9 .
  • the segment core 30a is wound at the same time on the U, V, and W phases, the winding operation is simple and the winding time is reduced, thereby minimizing the coil short wire.
  • the winding operation is performed as described above with respect to the segment cores 30b and 30c other than the segment core 30a and then connected to each other with respect to the coil.
  • the three segment cores 30a to 30c are arranged in a circle using a jig and then connected to each other to form a stator 30.
  • the three segment cores 30a to 30c may maintain the circle without being bent inward out of the circle by the stopper function portion B1.
  • one segment core 30a forms a core coupling portion D at both ends (ie, the first unit core 30a 1 and the ninth unit core 30a 9 ), and the core coupling portion D is formed by U.
  • FIG. It is punched out according to the coupling method by the female pin coupling method (see FIG. 5A), the rivet coupling method (see FIG. 5B), the groove coupling method (see FIG. 5C), and the like.
  • the core coupling part D is not illustrated in FIGS. 3A to 3C for convenience of description, but is actually formed in the segment cores 30a to 30c according to the coupling method.
  • segment cores 30a may be connected to each other in a manner of mixing a pin coupling method and a groove coupling method in a state of being stacked in an assembly.
  • both ends of one segment core (30a) is extended to form a coupling portion (E), one end to form a concave portion (E2) and the other end of the convex portion (E3) To form.
  • through holes E1 of the pins or rivets for the assembly of the assembly segment cores are drilled in this coupling part E.
  • stacked is shown in FIG. 5E. Accordingly, as shown in FIG. 5F, the adjacent assembly segment cores 30a and 30b are fitted with pins or rivets in the through-holes E1 formed by combining the concave portion E2 and the convex portion E3. do.
  • stator 30 of the present invention may be selectively implemented for the inner rotor or the outer rotor according to the connection method of the three segment cores (30a to 30c).
  • the stator 30 of the present invention is an inner case in which the rotor is disposed inward in the direction of the teeth C in the unit cores 30a 1 to 30c 9 of the segment cores 30a to 30c. It is implemented for the rotor, on the contrary, it is implemented for the outer rotor when the rotor is disposed outside in the direction of the tooth (C) outward as shown in FIG.
  • the stator of the present invention can be usefully applied not only for the inner rotor but also for the motor for the outer rotor and the double rotor structure.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

La présente invention concerne un stator segmenté où les côtés d'une pluralité de noyaux unitaires sont reliés les uns aux autres pour former un noyau segmenté qui constitue une partie d'un noyau de stator, ce qui permet de simplifier le processus de réalisation de la fabrication d'un stator et de réduire le temps de réalisation. Selon la présente invention, un procédé de fabrication du stator segmenté consiste : à déposer un film mince afin d'obtenir un noyau segmenté où une pluralité de noyaux unitaires sont disposés de façon linéaire et reliés les uns aux autres par le biais d'une partie de liaison mobile ; à empiler la pluralité de noyaux segmentés pour obtenir un ensemble de noyaux segmentés ; à former une bobine sur chaque noyau unitaire de l'ensemble de noyaux segmentés ; à mettre en place un enroulement autour de l'ensemble de noyaux segmentés ; et à disposer en cercle deux ensembles de noyaux segmentés à proximité l'un de l'autre de manière à relier ces deux ensembles de noyaux segmentés, un enroulement étant enroulé autour de chaque ensemble de noyaux segmentés.
PCT/KR2011/006459 2010-09-08 2011-08-31 Procédé de fabrication d'un stator segmenté et stator fabriqué selon ce procédé WO2012033302A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100087969A KR101133922B1 (ko) 2010-09-08 2010-09-08 세그먼트형 스테이터의 제조방법 및 그를 이용한 스테이터
KR10-2010-0087969 2010-09-08

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WO2012033302A2 true WO2012033302A2 (fr) 2012-03-15
WO2012033302A3 WO2012033302A3 (fr) 2012-05-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013149906A3 (fr) * 2012-04-05 2014-06-26 Robert Bosch Gmbh Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant
CN111682709A (zh) * 2020-06-08 2020-09-18 日立电梯电机（广州）有限公司 定子铁芯装配方法
CN113615038A (zh) * 2019-03-20 2021-11-05 吉凯恩粉末冶金工程有限公司 用于横向磁通电机的爪极定子
EP4156461A1 (fr) * 2021-09-24 2023-03-29 Hanning Elektro-Werke GmbH & Co. KG Moteur bldc et procédé de fabrication d'un ensemble stator de moteur bldc

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11164526A (ja) * 1997-11-27 1999-06-18 Toshiba Corp 回転電機のステータ製造方法等
KR20050096723A (ko) * 2004-03-31 2005-10-06 엘지전자 주식회사 연결형 보빈, 이를 구비한 모터의 고정자 및 그 제조방법
JP2009247169A (ja) * 2008-03-31 2009-10-22 Fujitsu General Ltd ステータコアの製造方法
JP2009278814A (ja) * 2008-05-16 2009-11-26 Fujitsu General Ltd 電動機および同電動機の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100260397B1 (ko) * 1997-08-27 2000-07-01 김상면 모우터 코어의 제조방법
KR100454556B1 (ko) 2002-05-09 2004-11-05 주식회사 미크로닉 세그먼트형 스테이터 코어를 이용한 비엘디씨 모터용스테이터 및 그의 제조방법과 비엘디씨 모터

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11164526A (ja) * 1997-11-27 1999-06-18 Toshiba Corp 回転電機のステータ製造方法等
KR20050096723A (ko) * 2004-03-31 2005-10-06 엘지전자 주식회사 연결형 보빈, 이를 구비한 모터의 고정자 및 그 제조방법
JP2009247169A (ja) * 2008-03-31 2009-10-22 Fujitsu General Ltd ステータコアの製造方法
JP2009278814A (ja) * 2008-05-16 2009-11-26 Fujitsu General Ltd 電動機および同電動機の製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013149906A3 (fr) * 2012-04-05 2014-06-26 Robert Bosch Gmbh Stator en plusieurs parties pour un moteur électrique et moteur électrique correspondant
CN104254962A (zh) * 2012-04-05 2014-12-31 罗伯特·博世有限公司 用于电机的多部件式定子,电机
CN113615038A (zh) * 2019-03-20 2021-11-05 吉凯恩粉末冶金工程有限公司 用于横向磁通电机的爪极定子
CN111682709A (zh) * 2020-06-08 2020-09-18 日立电梯电机（广州）有限公司 定子铁芯装配方法
CN111682709B (zh) * 2020-06-08 2021-08-31 日立电梯电机（广州）有限公司 定子铁芯装配方法
EP4156461A1 (fr) * 2021-09-24 2023-03-29 Hanning Elektro-Werke GmbH & Co. KG Moteur bldc et procédé de fabrication d'un ensemble stator de moteur bldc

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KR20120025827A (ko) 2012-03-16
WO2012033302A3 (fr) 2012-05-03
KR101133922B1 (ko) 2012-04-13

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