WO2013099012A1 - 電動機の積層コア - Google Patents
電動機の積層コア Download PDFInfo
- Publication number
- WO2013099012A1 WO2013099012A1 PCT/JP2011/080480 JP2011080480W WO2013099012A1 WO 2013099012 A1 WO2013099012 A1 WO 2013099012A1 JP 2011080480 W JP2011080480 W JP 2011080480W WO 2013099012 A1 WO2013099012 A1 WO 2013099012A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric motor
- hole
- cylindrical member
- laminated core
- holes
- Prior art date
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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
-
- 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
- H02K1/16—Stator cores with slots for windings
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
Definitions
- the present invention relates to a laminated core formed by laminating steel plates used as a rotor core or a stator core of an electric motor.
- a laminated body having a plurality of through-holes and a plurality of iron core materials having bolt holes on both sides of the through-holes, and the core materials are inserted into the through-holes and expanded.
- a crushing portion that is crushed by a plate-like punch is formed, the plurality of iron core materials are bound and temporarily fixed, and the laminated body is stored in a case in a temporarily fixed state and the bolt
- a stator core is disclosed in which a bolt is inserted into a hole and fixed to the case (see, for example, Patent Document 1).
- the laminated body is provided with a plurality of through holes, bolt holes are provided on both sides of the through hole, and the laminated body is bundled by inserting the bundling cylinder and the bolt into separate holes. Yes. Therefore, there is a problem that the number of holes provided in the laminated body is increased, which adversely affects the magnetic permeability of the laminated body.
- the conventional technique has a problem that the laminated body is fixed to the case with bolts, so that it cannot be applied to the rotor of the electric motor and can be applied only to the stator.
- the present invention has been made in view of the above, and reduces the adverse effect on the magnetic permeability by reducing the number of holes for members for binding the steel sheet laminate, and corrects the stacking deviation of the laminated steel sheets. It is an object of the present invention to obtain a laminated core of an electric motor that can improve lamination accuracy and can be used for both a rotor and a stator.
- the present invention provides a steel plate laminate in which a plurality of annular steel plates provided with a plurality of through holes are laminated, and a cylindrical member inserted through the through holes. And a rivet pin that is inserted through the tubular member, expands the diameter of the tubular member and presses the tubular member into the through hole, and a crimped portion at the tip is crimped to bind the steel sheet laminate. .
- the laminated core of the electric motor according to the present invention has the effect of high magnetic permeability and high lamination accuracy.
- the contact area with the case increases and the cooling performance improves, and when used in the rotor, the initial unbalance amount can be reduced, which is advantageous during high-speed rotation.
- FIG. 1 is a cross-sectional view showing a rotor core according to a first embodiment of the laminated core of the electric motor of the present invention.
- FIG. 2 is an enlarged view of the caulking portion of FIG.
- FIG. 3 is an exploded perspective view showing the rotor core according to the first embodiment.
- FIG. 4 is a cross-sectional view showing the balance ring.
- FIG. 5 is a perspective view showing the cylindrical member of the first embodiment.
- FIG. 6 is a partial cross-sectional view showing a first step of manufacturing the rotor core of the first embodiment.
- FIG. 7 is a partial cross-sectional view showing a second step of manufacturing the rotor core of the first embodiment.
- FIG. 1 is a cross-sectional view showing a rotor core according to a first embodiment of the laminated core of the electric motor of the present invention.
- FIG. 2 is an enlarged view of the caulking portion of FIG.
- FIG. 3 is an exploded perspective view showing the rot
- FIG. 8 is a partial cross-sectional view showing a third step of manufacturing the rotor core of the first embodiment.
- FIG. 9 is a perspective view showing the cylindrical member of the second embodiment.
- FIG. 10 is a perspective view showing the cylindrical member of the third embodiment.
- FIG. 11 is a perspective view showing the cylindrical member of the fourth embodiment.
- FIG. 12 is an exploded perspective view showing the stator core according to the fifth embodiment of the laminated core of the electric motor of the present invention.
- FIG. 1 is a cross-sectional view showing a rotor core according to a first embodiment of a laminated core of an electric motor of the present invention
- FIG. 2 is an enlarged view of a caulking portion of FIG. 1
- FIG. 3 is a rotor core according to the first embodiment.
- FIG. 4 is a cross-sectional view showing the balance ring
- FIG. 5 is a perspective view showing the cylindrical member of the first embodiment.
- the rotor core 91 as the laminated core of the electric motor according to the first embodiment is an annular steel plate provided with a plurality of (eight) through holes 1a at equal intervals in the same circumference.
- a steel plate laminate 1 in which a plurality of silicon steel plates are laminated, a cylindrical member 2 inserted through the through hole 1a, and a cylindrical member 2 are inserted into the cylindrical member 2 to expand the diameter of the cylindrical member 2 and press it into the through hole 1a.
- a rivet pin 3 for binding the steel sheet laminate 1 by crimping the crimping portion 3b at the tip.
- the diameter of the rivet pin 3 is 8 ⁇ .
- the diameter of the rivet pin 3 is fixed at 8 ⁇ , and the cylindrical member 2 has a diameter corresponding to the inner diameter of the through hole 1a of the steel plate laminate 1 that increases according to the capacity of the motor. What is necessary is just to change an outer diameter.
- a shaft hole 1b into which a rotating shaft (not shown) is fitted is provided in the center of the steel sheet laminate 1.
- eight slit-shaped permanent magnet embedded holes 1e are annularly provided on the outer peripheral side of the through hole 1a.
- the cylindrical member 2 and the rivet pin 3 are made of iron metal.
- the cylindrical member 2 is provided with a plurality of slits 2a (see FIG. 5) in the axial direction in order to adjust the compression elastic modulus in the thickness direction.
- Balance rings 4 as end plates are disposed at both ends of the steel plate laminate 1.
- a hole 4 g having an inner diameter larger than that of the shaft hole 1 b of the steel plate laminate 1 is provided.
- Both ends of the cylindrical member 2 are locked to the stepped portion 4d of the stepped through hole 4a, and the rivet pin 3 includes a steel plate laminate 1 and a balance ring (endplate) 4 by a head portion 3a and a crimped portion 3b. Are united.
- FIG. 6 is a partial cross-sectional view showing a first step of manufacturing the rotor core of the first embodiment
- FIG. 7 is a partial cross-sectional view showing a second step of manufacturing the rotor core of the first embodiment
- FIG. FIG. 10 is a partial cross-sectional view showing a third step of manufacturing the rotor core of the first embodiment.
- the balance ring 4 is arrange
- the large diameter portion 4b side of the stepped through hole 4a is brought into contact with one end of the steel sheet laminate 1 so that the through hole 1a and the stepped through hole 4a communicate with each other.
- the cylindrical member 2 is inserted into the through hole 1 a from the other end side of the steel plate laminate 1, and the tip of the cylindrical member 2 is locked to the stepped portion 4 d of the stepped through hole 4 a of the balance ring 4.
- the inner diameter of the large-diameter portion 4b of the through hole 1a of the steel plate laminate 1 and the stepped through hole 4a of the balance ring 4 and the outer diameter of the tubular member 2 are dimensional tolerances of 0.2 to 0.3 mm clearance fit.
- the tubular member 2 is manufactured and can be easily inserted into the through hole 1a.
- another balance ring 4 is arranged opposite to the other end side of the steel sheet laminate 1 with the large diameter portion 4 b side of the stepped through hole 4 a facing.
- the rivet pin 3 is inserted into the cylindrical member 2 through the stepped through hole 4 a of the balance ring 4.
- the outer diameter of the rivet pin 3 and the inner diameter of the cylindrical member 2 are manufactured with a dimensional tolerance of 0.3 to 0.4 mm, and in this second step, the rivet pin 3
- the diameter of the cylindrical member 2 is increased, and the outer peripheral portion of the cylindrical member 2 is pressed against the through-hole 1a of the steel plate laminate 1 and the large-diameter portion 4b of the stepped through-hole 4a of the balance ring 4. Due to this pressing action, the misalignment of the steel plates of the steel plate laminate 1 and the misalignment of the balance ring 4 with respect to the steel plate laminate 1 are corrected, and the lamination accuracy is improved.
- the large diameter portion of the stepped through hole 4 a of the balance ring 4 is formed on the other end portion of the tubular member 2 protruding to the other end side of the steel plate laminate 1. 4, the rivet pin 3 is pushed in until the head 3 a comes into contact with the balance ring 4, and the crimping portion 3 b at the tip is crimped to bind the steel plate laminate 1 and the balance ring 4. This completes the rotor core 91 of the motor.
- a portion of the balance ring 4 in the direction in which the center of gravity is biased is cut with a drill, or screw holes for adjustment are provided in the balance ring 4 at an equal pitch in advance, This can be done by attaching.
- FIG. FIG. 9 is a perspective view showing the cylindrical member of the second embodiment.
- the cylindrical member 22 of Embodiment 2 is provided with one slit 2a in the axial direction and has a C-shaped cross section.
- the cylindrical member 22 of Embodiment 2 is easy to manufacture and can be manufactured at low cost.
- FIG. 10 is a perspective view showing the cylindrical member of the third embodiment.
- the cylindrical member 32 of the third embodiment has a mesh structure.
- the cylindrical member 32 of the third embodiment can reduce the compression elastic coefficient in the thickness direction, and can reduce the insertion resistance of the rivet pin 3.
- FIG. 11 is a perspective view showing the cylindrical member of the fourth embodiment.
- the cylindrical member 42 of Embodiment 4 has a spiral winding structure of an elongated plate.
- the cylindrical member 42 of Embodiment 4 can manufacture a cylindrical member of arbitrary diameters, without using a pipe material.
- FIG. FIG. 12 is an exploded perspective view showing the stator core according to the fifth embodiment of the laminated core of the electric motor of the present invention.
- the stator core 95 as the laminated core of the electric motor of Embodiment 5 is a silicon steel plate as an annular steel plate provided with a plurality of (four) through holes 51a at equal intervals in the same circumference.
- a rivet pin 3 for binding the steel plate laminate 51 by crimping the crimping portion 3b is provided.
- a large-diameter hole 51b in which a rotor core (not shown) is disposed is provided in the center of the steel sheet laminate 51.
- a large number of slots 51f around which coils (not shown) are wound are provided along the large-diameter hole 51b.
- the large diameter portion 4 b has the same diameter as the through hole 51 a and the small diameter portion 4 c has the same diameter as the outer diameter of the rivet pin 3 at the same position as the plurality of through holes 51 a of the steel plate laminate 51.
- An annular end plate 4 having a through hole 4 a is disposed at both ends of the steel plate laminate 51.
- a hole 4g having a larger inner diameter than the large diameter hole 51b of the steel plate laminate 51 is provided.
- Both ends of the cylindrical member 2 are locked to the stepped portion 4d (see FIG. 4) of the stepped through hole 4a, and the rivet pin 3 includes the steel plate laminate 51 and the end plate by the head portion 3a and the crimped portion 3b. 4 is bundled.
- the stator core 95 of the electric motor according to the fifth embodiment can be manufactured by the same manufacturing method as the manufacturing method of the rotor core 91 of the electric motor shown in FIGS. Further, instead of the cylindrical member 2, the cylindrical members 22, 32, and 42 shown in FIGS. 9 to 11 can be used.
- the rotor core 91 of the first embodiment and the stator core 95 of the fifth embodiment have a high magnetic permeability because the number of through holes 1a and 51a provided in the steel plate laminates 1 and 51 is small.
- the rivet pin 3 is inserted into the cylindrical member 2 inserted through the through holes 1a and 51a, the diameter of the cylindrical member 2 is expanded and pressed to the through holes 1a and 51a, and the steel plate laminates 1 and 51 are made of steel plates. Since the misalignment and the misalignment of the balance ring 4 with respect to the steel sheet laminates 1 and 51 are corrected, the effect of high lamination accuracy is achieved.
- the stator core 95 has an increased contact area with the case, improving the cooling performance, and the rotor core 91 can reduce the initial unbalance amount, which is advantageous during high-speed rotation.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
図1は、本発明の電動機の積層コアの実施の形態1のロータコアを示す断面図であり、図2は、図1のカシメ部の拡大図であり、図3は、実施の形態1のロータコアを示す分解斜視図であり、図4は、バランスリングを示す断面図であり、図5は、実施の形態1の筒状部材を示す斜視図である。
図9は、実施の形態2の筒状部材を示す斜視図である。図9に示すように、実施の形態2の筒状部材22は、軸方向に1つのスリット2aが設けられ、横断面がC字形となっている。実施の形態2の筒状部材22は、製作が容易であり低コストで製作することができる。
図10は、実施の形態3の筒状部材を示す斜視図である。図10に示すように、実施の形態3の筒状部材32は、メッシュ構造になっている。実施の形態3の筒状部材32は、肉厚方向の圧縮弾性係数を小さくすることができ、リベットピン3の挿入抵抗を小さくすることができる。
図11は、実施の形態4の筒状部材を示す斜視図である。図11に示すように、実施の形態4の筒状部材42は、細長板の螺旋巻構造になっている。実施の形態4の筒状部材42は、パイプ材を用いずに任意の径の筒状部材を製作することができる。
図12は、本発明の電動機の積層コアの実施の形態5のステータコアを示す分解斜視図である。図12に示すように、実施の形態5の電動機の積層コアとしてのステータコア95は、同一円周状に等間隔に複数(4個)の貫通孔51aが設けられた環状の鋼板としての珪素鋼板を複数枚積層した鋼板積層体51と、貫通孔51aに挿通される筒状部材2と、筒状部材2に挿通され、筒状部材2を拡径して貫通孔51aに押圧し、先端のカシメ部3bがカシメられて鋼板積層体51を結束するリベットピン3と、を備えている。
1a、51a 貫通孔
1b 軸孔
1e 永久磁石埋込孔
51b 大径孔
51f スロット
2、22、32、42 筒状部材
2a スリット
3 リベットピン
3a 頭部
3b カシメ部
4 バランスリング(端板)
4a 段付貫通孔
4b 大径部
4c 小径部
4d 段部
4g 孔
91 電動機のロータコア(電動機の積層コア)
95 電動機のステータコア(電動機の積層コア)
Claims (8)
- 複数の貫通孔が設けられた環状の鋼板を複数枚積層した鋼板積層体と、
前記貫通孔に挿通された筒状部材と、
前記筒状部材に挿通され、該筒状部材を拡径して前記貫通孔に押圧し、先端のカシメ部がカシメられて前記鋼板積層体を結束するリベットピンと、
を備えることを特徴とする電動機の積層コア。 - 前記鋼板積層体の複数の貫通孔と同一位置に、大径部が前記貫通孔と同径で小径部が前記リベットピンの外径と同径の段付貫通孔を有する環状の端板が、前記鋼板積層体の両端部に配置され、前記筒状部材は、両端部が前記段付貫通孔の段部に係止され、前記リベットピンは、前記鋼板積層体及び端板を結束していることを特徴とする請求項1に記載の電動機の積層コア。
- 前記電動機の積層コアは、電動機のロータコアであることを特徴とする請求項2に記載の電動機の積層コア。
- 前記端板は、バランスリングであることを特徴とする請求項3に記載の電動機の積層コア。
- 前記電動機の積層コアは、電動機のステータコアであることを特徴とする請求項1又は2に記載の電動機の積層コア。
- 前記筒状部材は、軸方向に1つ又は複数のスリットが設けられていることを特徴とする請求項1に記載の電動機の積層コア。
- 前記筒状部材は、メッシュ構造になっていることを特徴とする請求項1に記載の電動機の積層コア。
- 前記筒状部材は、細長板の螺旋巻構造になっていることを特徴とする請求項1に記載の電動機の積層コア。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/080480 WO2013099012A1 (ja) | 2011-12-28 | 2011-12-28 | 電動機の積層コア |
CN201180074952.2A CN103959605B (zh) | 2011-12-28 | 2011-12-28 | 电动机的层叠铁心 |
JP2013551145A JP5638705B2 (ja) | 2011-12-28 | 2011-12-28 | 電動機の積層コア |
DE112011106069.6T DE112011106069T5 (de) | 2011-12-28 | 2011-12-28 | Geschichteter Kern für Elektromotor |
TW101113722A TWI465005B (zh) | 2011-12-28 | 2012-04-18 | 電動機之積層鐵芯 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/080480 WO2013099012A1 (ja) | 2011-12-28 | 2011-12-28 | 電動機の積層コア |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013099012A1 true WO2013099012A1 (ja) | 2013-07-04 |
Family
ID=48696571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/080480 WO2013099012A1 (ja) | 2011-12-28 | 2011-12-28 | 電動機の積層コア |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5638705B2 (ja) |
CN (1) | CN103959605B (ja) |
DE (1) | DE112011106069T5 (ja) |
TW (1) | TWI465005B (ja) |
WO (1) | WO2013099012A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103457420A (zh) * | 2013-08-22 | 2013-12-18 | 宁波菲仕运动控制技术有限公司 | 一种伺服电机转子铁芯铆压工装 |
CN103706751A (zh) * | 2013-12-31 | 2014-04-09 | 泰信电机(苏州)有限公司 | 一种用于电机转子铁芯铆钉装置 |
JP2020137373A (ja) * | 2019-02-25 | 2020-08-31 | 株式会社デンソー | 電機子及び回転電機 |
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MX2017003450A (es) * | 2014-09-15 | 2017-11-13 | Faber Spa | Motor para una unidad de succion de una campana extractora con desempeño mejorado. |
JP6612713B2 (ja) * | 2016-10-27 | 2019-11-27 | トヨタ自動車株式会社 | 着磁ヨークの組付方法 |
DE102022129147A1 (de) | 2022-11-04 | 2024-05-08 | Audi Aktiengesellschaft | Verfahren zur Herstellung eines Rotors für eine elektrische Maschine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5960840U (ja) * | 1982-10-14 | 1984-04-20 | 松下電器産業株式会社 | 小型電動機 |
JPS63217941A (ja) * | 1987-03-05 | 1988-09-12 | Hitachi Ltd | 回転電機の回転子 |
JPH027748U (ja) * | 1988-06-24 | 1990-01-18 | ||
JP2000184645A (ja) * | 1998-12-18 | 2000-06-30 | Calsonic Kansei Corp | モータ |
JP2004080950A (ja) * | 2002-08-21 | 2004-03-11 | Sankyo Seiki Mfg Co Ltd | 回転電機の電機子 |
JP2006187063A (ja) * | 2004-12-27 | 2006-07-13 | Nissan Motor Co Ltd | ロータ構造 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1880461B1 (en) * | 2005-05-12 | 2013-02-13 | LG Electronics Inc. | Rotor of synchronous reluctance motor |
-
2011
- 2011-12-28 DE DE112011106069.6T patent/DE112011106069T5/de not_active Withdrawn
- 2011-12-28 CN CN201180074952.2A patent/CN103959605B/zh not_active Expired - Fee Related
- 2011-12-28 JP JP2013551145A patent/JP5638705B2/ja not_active Expired - Fee Related
- 2011-12-28 WO PCT/JP2011/080480 patent/WO2013099012A1/ja active Application Filing
-
2012
- 2012-04-18 TW TW101113722A patent/TWI465005B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5960840U (ja) * | 1982-10-14 | 1984-04-20 | 松下電器産業株式会社 | 小型電動機 |
JPS63217941A (ja) * | 1987-03-05 | 1988-09-12 | Hitachi Ltd | 回転電機の回転子 |
JPH027748U (ja) * | 1988-06-24 | 1990-01-18 | ||
JP2000184645A (ja) * | 1998-12-18 | 2000-06-30 | Calsonic Kansei Corp | モータ |
JP2004080950A (ja) * | 2002-08-21 | 2004-03-11 | Sankyo Seiki Mfg Co Ltd | 回転電機の電機子 |
JP2006187063A (ja) * | 2004-12-27 | 2006-07-13 | Nissan Motor Co Ltd | ロータ構造 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103457420A (zh) * | 2013-08-22 | 2013-12-18 | 宁波菲仕运动控制技术有限公司 | 一种伺服电机转子铁芯铆压工装 |
CN103457420B (zh) * | 2013-08-22 | 2015-07-08 | 宁波菲仕运动控制技术有限公司 | 一种伺服电机转子铁芯铆压工装 |
CN103706751A (zh) * | 2013-12-31 | 2014-04-09 | 泰信电机(苏州)有限公司 | 一种用于电机转子铁芯铆钉装置 |
JP2020137373A (ja) * | 2019-02-25 | 2020-08-31 | 株式会社デンソー | 電機子及び回転電機 |
WO2020175222A1 (ja) * | 2019-02-25 | 2020-09-03 | 株式会社デンソー | 電機子及び回転電機 |
JP7147629B2 (ja) | 2019-02-25 | 2022-10-05 | 株式会社デンソー | 電機子及び回転電機 |
Also Published As
Publication number | Publication date |
---|---|
TW201328124A (zh) | 2013-07-01 |
CN103959605B (zh) | 2017-09-08 |
JP5638705B2 (ja) | 2014-12-10 |
TWI465005B (zh) | 2014-12-11 |
JPWO2013099012A1 (ja) | 2015-04-30 |
DE112011106069T5 (de) | 2014-09-11 |
CN103959605A (zh) | 2014-07-30 |
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