WO2013108355A1 - 磁石埋込型回転子 - Google Patents
磁石埋込型回転子 Download PDFInfo
- Publication number
- WO2013108355A1 WO2013108355A1 PCT/JP2012/050726 JP2012050726W WO2013108355A1 WO 2013108355 A1 WO2013108355 A1 WO 2013108355A1 JP 2012050726 W JP2012050726 W JP 2012050726W WO 2013108355 A1 WO2013108355 A1 WO 2013108355A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- frame
- embedded
- rotor
- permanent magnet
- 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
- 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]
-
- 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
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
Definitions
- the present invention relates to a magnet embedded rotor in which a permanent magnet is embedded in a rotor core.
- a stator and a rotor are provided, and the rotor is a laminated core formed by laminating a plurality of electromagnetic steel plates in the axial direction, and a rotor shaft hole is provided in the axis date traversal of the laminated core,
- a plurality of magnet housing holes for housing permanent magnets in a radial direction orthogonal to the rotor shaft hole and a plurality of caulking pin holes for inserting caulking pins are provided, and permanent magnets protrude from the magnet housing holes at both ends of the laminated core.
- An end plate for preventing the rotation is attached, and the rotor is integrally fixed by the caulking pin, and the specific gravity of the plurality of caulking pins of the rotor is changed by at least one to reduce a minute balance amount of the rotor.
- a rotor of a permanent magnet rotating machine that is adjusted is disclosed (for example, see Patent Document 2).
- Patent Documents 1 and 2 it is necessary to provide an end plate to prevent the permanent magnets from scattering, and since two or more types of rivet pins are used, the number of parts is reduced. There is a problem of increasing.
- the number of rivet insertion holes is larger than that using a round bar-like rivet pin. There is a problem that there is a restriction on the position of the holes.
- the present invention has been made in view of the above, and it is an object of the present invention to obtain an embedded magnet rotor in which the number of parts such as end plates is reduced and the degree of freedom in designing the arrangement position of the embedded magnet holes is improved. Objective.
- the present invention has a plurality of rectangular magnet embedding holes formed in a cylindrical shape by laminating steel plates and arranged annularly at predetermined intervals on the outer edge portion.
- a magnet holding frame that is embedded in the magnet embedding hole in a state in which a permanent magnet is held, and that a caulking portion of the horizontal frame is caulked and fixed to the rotor core, and the rotor core is integrated. It is characterized by providing.
- the magnet-embedded rotor according to the present invention has the effect of reducing the number of parts such as end plates and obtaining a magnet-embedded rotor with improved design freedom of the position of the magnet-embedded hole. Play.
- FIG. 1 is a longitudinal sectional view showing an embodiment of a magnet-embedded rotor according to the present invention.
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- FIG. 3 is a perspective view showing the magnet holding frame of the embodiment in the middle of mounting the permanent magnet.
- FIG. 4 is a perspective view showing the permanent magnet of the embodiment.
- FIG. 5 is a perspective view showing a magnet holding frame according to an embodiment in which a permanent magnet is mounted.
- FIG. 1 is a longitudinal sectional view showing an embodiment of a magnet-embedded rotor according to the present invention
- FIG. 2 is a sectional view taken along line AA in FIG. 1
- FIG. 4 is a perspective view showing the magnet holding frame of the embodiment in the middle of mounting the permanent magnet
- FIG. 4 is a perspective view showing the permanent magnet of the embodiment
- FIG. 5 is an embodiment of mounting the permanent magnet. It is a perspective view which shows the magnet holding frame.
- the rotor core 1 of the magnet-embedded rotor 10 is formed in a cylindrical shape by laminating a large number of thin silicon steel plates (magnetic bodies).
- a shaft (not shown) is press-fitted and fixed in the shaft hole 1 a formed at the center of the rotor core 1.
- a plurality of (eight) magnet embedding holes 1b having a circumferential width Ha and a radial width Hb are annularly arranged at predetermined intervals.
- a magnetic pole portion 1 c is formed on the outer peripheral side of the magnet embedded hole 1 b of the rotor core 1.
- the magnet holding frame 2 of the embodiment includes a horizontal frame 2a provided with a crimping portion 2f, two parallel vertical frames 2b provided with a holding portion 2g, a head Part frame 2c, and each end part is connected and formed in the rectangle.
- the inner width Hc of the magnet holding frame 2 is the same as the horizontal width Hd of the rectangular plate-shaped permanent magnet 3, and the width Hf (see FIG. 2) between the tips of the holding portions 2 g of the two vertical frames 2 b is equal to the permanent magnet 3.
- the permanent magnet 3 is inserted between the vertical frames 2 b of the magnet holding frame 2, and the side ends are supported by the vertical frames 2 b and the holding portions 2 g, so that the magnet holding frame 2 has a horizontal width Hd. Retained.
- the inner height Hk of the magnet holding frame 2 is seven times the height He of the permanent magnet 3, and the seven permanent magnets 3 are fitted into the magnet holding frame 2 without a gap. It is desirable to bond the permanent magnet 3 and the magnet holding frame 2 with an adhesive.
- the outer width Hg of the magnet holding frame 2 is the same as the circumferential width Ha of the magnet embedding hole 1b of the rotor core 1, and the thickness of the permanent magnet and the thickness Hj of the magnet holding frame 2 are equal to the magnet embedding hole. It is the same as the radial width Hb of 1b.
- the height Hm of the magnet holding frame 2 is larger than the height Hn of the rotor core 1.
- the lateral width Hp of the head frame 2c is larger than the outer width Hg of the magnet holding frame 2, and the thickness Hq of the head frame 2c is larger than the thickness of the permanent magnet and the thickness Hj of the magnet holding frame 2. It has become.
- the magnet holding frame 2 holding the seven permanent magnets 3 in the frame is inserted and embedded in the magnet embedding hole 1b of the rotor core 1 from the side of the horizontal frame 2a, and the head frame 2c is embedded in the rotor core 1.
- the caulking portion 2f of the horizontal frame 2a protruding from the other end of the rotor core 1 is brought into contact with one end, the rotor core 1 formed by laminating a large number of silicon steel plates is integrally fastened,
- the permanent magnet 3 is fixed in the magnet embedding hole 1b, and the magnet embedding type rotor 10 of the embodiment as shown in FIG. 1 is completed.
- the magnet holding frame 2 serving as a conventional rivet pin is inserted into the magnet-embedding hole 1b, the insertion hole for the rivet pin is used. Do not need. Further, the step of embedding the permanent magnet 3 and the step of inserting the rivet pin can be performed in one step, and the number of assembly steps can be reduced. Further, since there is no need to arrange the insertion hole for the rivet pin in the rotor core 1, the arrangement position of the magnet embedding hole 1b is not restricted, and the degree of freedom in design is improved.
- the horizontal frame 2a and the head frame 2c of the magnet holding frame 2 restrain the movement of the permanent magnet 3 in the axial direction, a conventional end plate for preventing the permanent magnet 3 from coming off is not required.
- the balance adjustment of the rotor which has been performed by cutting the end plate with a drill, can be performed by cutting the horizontal frame 2a and the head frame 2c with a drill.
- the magnet holding frame 2 has a structure that supports only the side end portions of the permanent magnet 3 by the vertical frame 2b and the holding portion 2g, and does not have walls or the like that support the front and back surfaces of the permanent magnet 3.
- the permanent magnet 3 can be inserted into the magnet holding frame 2 from both the front and back sides.
- the magnet holding frame 2 does not have walls or the like that support the front and back surfaces of the permanent magnet 3, it is possible to prevent loss due to eddy currents.
Abstract
Description
図1は、本発明に係る磁石埋込型回転子の実施の形態を示す縦断面図であり、図2は、図1のA-A線に沿う断面図であり、図3は、永久磁石を装着途中の実施の形態の磁石保持枠を示す斜視図であり、図4は、実施の形態の永久磁石を示す斜視図であり、図5は、永久磁石を装着した実施の形態の磁石保持枠を示す斜視図である。
1a 軸孔
1b 磁石埋込孔
1c 磁極部
2 磁石保持枠
2a 横枠
2b 縦枠
2c 頭部枠
2f カシメ部
2g 保持部
3 永久磁石
10 磁石埋込型回転子
Claims (4)
- 鋼板を積層して円柱状に形成され、外縁部に環状に所定間隔で配置された複数の長方形の磁石埋込孔を有する回転子鉄心と、
カシメ部が設けられた横枠、一端部が前記横枠の両端部に接続し内幅が矩形板状の永久磁石の横幅と同一で外幅が前記磁石埋込孔の周方向幅と同一となるように平行に配置された2本の縦枠及び該2本の縦枠の他端部に接続される頭部枠、を有し、前記2本の縦枠間に前記永久磁石を保持した状態で前記磁石埋込孔に埋込まれ、前記横枠のカシメ部がカシメられて前記回転子鉄心に固定されると共に前記回転子鉄心を一体化する磁石保持枠と、
を備えることを特徴とする磁石埋込型回転子。 - 前記磁石保持枠の縦枠は、前記永久磁石が外れないように保持する保持部を有することを特徴とする請求項1に記載の磁石埋込型回転子。
- 前記磁石保持枠と永久磁石とは、接着剤により接着されていることを特徴とする請求項1に記載の磁石埋込型回転子。
- 前記磁石保持枠の頭部枠及び横枠を削ることにより、バランス調整を行なうことを特徴とする請求項1に記載の磁石埋込型回転子。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127026713A KR20130118724A (ko) | 2012-01-16 | 2012-01-16 | 자석 매립형 회전자 |
DE112012005686.8T DE112012005686T5 (de) | 2012-01-16 | 2012-01-16 | Rotor mit einem Permanentmagnet im Inneren |
PCT/JP2012/050726 WO2013108355A1 (ja) | 2012-01-16 | 2012-01-16 | 磁石埋込型回転子 |
CN2012800015044A CN103348568A (zh) | 2012-01-16 | 2012-01-16 | 磁铁埋入型转子 |
JP2012527539A JP5148019B1 (ja) | 2012-01-16 | 2012-01-16 | 磁石埋込型回転子 |
TW101121875A TW201332255A (zh) | 2012-01-16 | 2012-06-19 | 磁鐵埋入型轉子 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/050726 WO2013108355A1 (ja) | 2012-01-16 | 2012-01-16 | 磁石埋込型回転子 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013108355A1 true WO2013108355A1 (ja) | 2013-07-25 |
Family
ID=47890553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/050726 WO2013108355A1 (ja) | 2012-01-16 | 2012-01-16 | 磁石埋込型回転子 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP5148019B1 (ja) |
KR (1) | KR20130118724A (ja) |
CN (1) | CN103348568A (ja) |
DE (1) | DE112012005686T5 (ja) |
TW (1) | TW201332255A (ja) |
WO (1) | WO2013108355A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021508221A (ja) * | 2017-12-18 | 2021-02-25 | エルジー イノテック カンパニー リミテッド | ローターおよびこれを備えるモーター |
WO2021176823A1 (ja) * | 2020-03-04 | 2021-09-10 | 日立Astemo株式会社 | 回転電機及びその回転子 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7132857B2 (ja) * | 2019-01-09 | 2022-09-07 | 本田技研工業株式会社 | 永久磁石埋設型ロータ及び永久磁石埋設型ロータの製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007937A (ja) * | 2002-04-16 | 2004-01-08 | Sumitomo Special Metals Co Ltd | ロータおよび回転機 |
JP2006109573A (ja) * | 2004-10-01 | 2006-04-20 | Denso Corp | 車両用回転電機およびその製造方法 |
JP2009219309A (ja) * | 2008-03-12 | 2009-09-24 | Aichi Elec Co | 永久磁石回転機の回転子 |
JP2010098853A (ja) * | 2008-10-16 | 2010-04-30 | Toyota Auto Body Co Ltd | ダブルステータ型モータ |
JP2010213553A (ja) * | 2009-03-12 | 2010-09-24 | Panasonic Corp | 電動機及び電気機器 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI121291B (fi) * | 2007-12-11 | 2010-09-15 | Abb Oy | Kestomagneettimoduuli ja moduulin käsittävä sähkökoneen roottori |
-
2012
- 2012-01-16 KR KR1020127026713A patent/KR20130118724A/ko active IP Right Grant
- 2012-01-16 CN CN2012800015044A patent/CN103348568A/zh active Pending
- 2012-01-16 WO PCT/JP2012/050726 patent/WO2013108355A1/ja active Application Filing
- 2012-01-16 JP JP2012527539A patent/JP5148019B1/ja not_active Expired - Fee Related
- 2012-01-16 DE DE112012005686.8T patent/DE112012005686T5/de not_active Withdrawn
- 2012-06-19 TW TW101121875A patent/TW201332255A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007937A (ja) * | 2002-04-16 | 2004-01-08 | Sumitomo Special Metals Co Ltd | ロータおよび回転機 |
JP2006109573A (ja) * | 2004-10-01 | 2006-04-20 | Denso Corp | 車両用回転電機およびその製造方法 |
JP2009219309A (ja) * | 2008-03-12 | 2009-09-24 | Aichi Elec Co | 永久磁石回転機の回転子 |
JP2010098853A (ja) * | 2008-10-16 | 2010-04-30 | Toyota Auto Body Co Ltd | ダブルステータ型モータ |
JP2010213553A (ja) * | 2009-03-12 | 2010-09-24 | Panasonic Corp | 電動機及び電気機器 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021508221A (ja) * | 2017-12-18 | 2021-02-25 | エルジー イノテック カンパニー リミテッド | ローターおよびこれを備えるモーター |
JP7249345B2 (ja) | 2017-12-18 | 2023-03-30 | エルジー イノテック カンパニー リミテッド | ローターおよびこれを備えるモーター |
WO2021176823A1 (ja) * | 2020-03-04 | 2021-09-10 | 日立Astemo株式会社 | 回転電機及びその回転子 |
Also Published As
Publication number | Publication date |
---|---|
CN103348568A (zh) | 2013-10-09 |
DE112012005686T5 (de) | 2014-10-30 |
KR20130118724A (ko) | 2013-10-30 |
JP5148019B1 (ja) | 2013-02-20 |
TW201332255A (zh) | 2013-08-01 |
JPWO2013108355A1 (ja) | 2015-05-11 |
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