JPS5819138A - Magnetic wedge for rotary electric machine - Google Patents
Magnetic wedge for rotary electric machineInfo
- Publication number
- JPS5819138A JPS5819138A JP11523281A JP11523281A JPS5819138A JP S5819138 A JPS5819138 A JP S5819138A JP 11523281 A JP11523281 A JP 11523281A JP 11523281 A JP11523281 A JP 11523281A JP S5819138 A JPS5819138 A JP S5819138A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- electric machine
- wedge
- parallel
- magnetic wedge
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
- H02K3/493—Slot-closing devices magnetic
Abstract
Description
【発明の詳細な説明】
本発明は、オープンスμット形又はセミり田−ズ影勢の
スロット構造を有する鉄心を具備した電動機、発電機等
の一転電機において、巻線を配置したヌ讐ットの開口部
を閉塞しかつ特性歇善を図るための一転電機用磁性楔に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a single-turn electric machine, such as a motor or a generator, equipped with an iron core having an open-slot type or semi-circular slot structure. The present invention relates to a magnetic wedge for a single-turn electric machine for closing an opening in a wedge and improving characteristics.
一般に１回転篭機においては、運転効率の向上目的で磁
性楔な用いることは既に知られ【いる。In general, it is already known that magnetic wedges are used in single-rotation cage machines to improve operating efficiency.
第１図Ｅｍ１転電機のステータ１のセミク四−ズ形のス
ーット２内にステー−巻！Ｉ３を配置し、ス四ット２の
開口部に磁性楔４を挿入した構造を示もさ文、−従来使
用されている磁性楔材としては、鉄系あるいはフェライ
ト系のものがあるが、例えば磁性楔がステータ側に配置
され【いるものとすると、磁束の流れ方向としては、対
向する一一タ巻線へ鎖交する方向と、漏れインダクタン
スに寄与するステータ磁極歯間方向の二つかあり、両者
は磁気的には等末的であるため、効率が向上する反面、
漏れリアクタンスの増加によるトルクの低下を招く欠点
がありた。Fig. 1 Stay winding in the semi-quad suit 2 of the stator 1 of the Em1 converter! The structure is shown in which a magnetic wedge 4 is inserted into the opening of the slot 2 with a magnetic wedge 4 placed in the slot 2. - Conventionally used magnetic wedge materials include iron-based or ferrite-based materials. For example, if a magnetic wedge is placed on the stator side, there are two directions of magnetic flux flow: the direction interlinking to the opposing primary windings, and the direction between the stator pole teeth, which contributes to leakage inductance. , since both are magnetically equidistant, the efficiency is improved, but on the other hand,
This had the disadvantage of causing a decrease in torque due to an increase in leakage reactance.
本発明は、上記の点に鎌み、高透磁率で飽和磁束轡度の
大きな非晶質磁性薄帯な用い、長手方向をスロット内の
巻線とはば平行方向とし、短手方向を鉄心断藺中心線方
向に纜ば平行方向となる如く積層するととにより、相手
方四−夕又はステータ巻線鎖交方向と磁極歯配列方向と
の間に磁気的異方性を持たせ、漏れインダクタンスの増
加分な最小限とし、ひいてはトルクの低下を極力防止し
、運転効率は従来の等末的磁性材斜横を用いた場合と同
等以上に改善した回転電機用磁性楔を提供しようとする
ものである。The present invention addresses the above points and uses an amorphous magnetic ribbon with high magnetic permeability and a large degree of saturation magnetic flux, with the longitudinal direction parallel to the winding wire in the slot and the transverse direction parallel to the iron core By stacking the layers so that they are parallel to the center line direction, magnetic anisotropy is created between the opposing coil or stator winding interlinkage direction and the magnetic pole tooth arrangement direction, which reduces leakage inductance. The objective is to provide a magnetic wedge for rotating electric machines that minimizes the increase, prevents the decrease in torque as much as possible, and improves operating efficiency to the same level or higher than when using conventional magnetic material diagonal horizontals. be.
以下、不発ＷＲＫ係る副板電機用磁性楔の実施例を［１
ｍ１ Ｋ９１１２ テ説＄１ ｔ ４ ＠第！ＩＩにお
いて、断面が略台形状の回転電機用１ｍ４！ｋｌｌｌＯ
は、高透磁率で飽和磁束密度の大きな非晶質磁性薄帯１
１を多数積層したものであり、各非晶質磁性薄帯１１の
長手方向は、轟鋏磁性楔が配設されるス四ットの内側の
巻線と嫌ぼ平行であり、短手方向は鉄心断面中心ｌ１Ｉ
Ｘの方向Ｋｉｔぼ平行になるよ５に積層しである。Below, examples of magnetic wedges for sub-plate electric machines related to unexploded WRK are shown [1]
m1 K9112 Te theory $1 t 4 @th! In II, 1 m4 for rotating electric machines with a substantially trapezoidal cross section! kllllO
is an amorphous magnetic ribbon 1 with high magnetic permeability and large saturation magnetic flux density.
The longitudinal direction of each amorphous magnetic thin strip 11 is approximately parallel to the inner winding of the strip in which the magnetic wedge is arranged, and the transverse direction is the core cross-sectional center l1I
Five layers are stacked so that they are approximately parallel to the X direction.
以上の構成の場合、磁性１１１Ｇが例えばステータ儒に
設けられているとすると、四−夕巻線に鎖交する磁束の
流れ、すなわち磁性楔の長手方向の流れに対しては高い
透磁率を示し、漏れインダクタンスに寄与する磁極歯配
列方向の磁束の流れに対しては積層方向であるめで比較
的低い透磁率を示すから、トルク低下を引起こす漏洩磁
束を極力押えることができる。In the above configuration, if the magnetic layer 111G is provided, for example, in the stator, it will exhibit high magnetic permeability to the flow of magnetic flux interlinking with the four-way winding, that is, the flow in the longitudinal direction of the magnetic wedge. Since the lamination direction exhibits a relatively low magnetic permeability with respect to the flow of magnetic flux in the magnetic pole tooth arrangement direction that contributes to leakage inductance, leakage magnetic flux that causes torque reduction can be suppressed as much as possible.
以下の表は１馬力標準三相誘導電動機における磁性楔の
有無及び磁性楔材質に対応する効率とトルクの特性を比
較して示す。The following table shows a comparison of efficiency and torque characteristics corresponding to the presence or absence of a magnetic wedge and the material of the magnetic wedge in a 1 horsepower standard three-phase induction motor.
表
上記表からも判るよ５に、本発明による刷板電機用磁性
楔は、非晶質磁性薄帯を用い、その長手方向をス胃ット
内の巻線と嫌ば平行方向とし、かつ短手方向を鉄心断面
中心線方向と嫌ぼ平行方向となる如く積層することによ
り、相手方胃−夕又はステータ巻線鎖交方向と磁極歯配
列方向との関に磁気的異方性を持たせることができ、漏
れインダクタンスの増加分を最小限としてトルクの低下
を防止し、運転効率の向上を図ることかで會る。Table 5 As can be seen from the above table, the magnetic wedge for a plate electric machine according to the present invention uses an amorphous magnetic ribbon, the longitudinal direction of which is preferably parallel to the winding in the gas cut, and By laminating them so that their short sides are approximately parallel to the core cross-sectional centerline direction, magnetic anisotropy is created in the relationship between the opposite side or stator winding interlinkage direction and the magnetic pole tooth arrangement direction. This is achieved by minimizing the increase in leakage inductance, preventing a decrease in torque, and improving operating efficiency.
第１図は同転電機のス四ットに磁性−を配置した構成を
示す断爾図、第２図は不発１ｊｌＫ係養闘転電機用磁＊
５ｉｆ）＊施例を示す斜視図である。
１・・・ステータ、２・・・スーット、４．１０・・・
磁性楔、１１・・・非晶質磁性薄帯。
特許出願人
東京電気化学工業株式全社
代理人 弁理士 村 井 論Figure 1 is a diagram showing the arrangement of magnets in the switch of the same electric machine, and Figure 2 is a diagram of the magnet for an unexploded 1JlK electric machine.
5if) *It is a perspective view showing an example. 1...Stator, 2...Suit, 4.10...
Magnetic wedge, 11...Amorphous magnetic ribbon. Patent applicant Tokyo Denki Kagaku Kogyo Co., Ltd. Company-wide agent Patent attorney Ron Murai
Claims (1)
スロット構造を有する鉄心を備えた一転電機の諌スーッ
トーロ部を閉塞する回転電機用磁性１１において、非晶
質磁性薄帯の長手方向を前記スロット内の巻線と嫌ば平
行方向とし、短手方向を前記鉄心の鉄心断爾中心線方向
とはぼ平行となる如く、前記非晶質磁性薄＊ｔ−積層し
て構成することを特徴とする一転電機用磁性楔。(1) In the magnetic material 11 for a rotating electric machine that closes the straight section of a one-turn electric machine equipped with an iron core having an open U-Tat type or a 72-T4-Me slot structure, the longitudinal direction of the amorphous magnetic ribbon is The amorphous magnetic thin *t-layer is constructed so that the direction is preferably parallel to the winding wire in the slot, and the transversal direction is approximately parallel to the direction of the centerline of the core cut. A magnetic wedge for electric machines featuring the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11523281A JPS5819138A (en) | 1981-07-24 | 1981-07-24 | Magnetic wedge for rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11523281A JPS5819138A (en) | 1981-07-24 | 1981-07-24 | Magnetic wedge for rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5819138A true JPS5819138A (en) | 1983-02-04 |
Family
ID=14657612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11523281A Pending JPS5819138A (en) | 1981-07-24 | 1981-07-24 | Magnetic wedge for rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819138A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121511A1 (en) * | 1990-06-29 | 1992-01-09 | Toshiba Kawasaki Kk | Magnetic slot wedge for dynamoelectric machine - has amorphous layer sandwiched between two thin non-magnetic layers |
| WO1992000625A1 (en) * | 1990-06-29 | 1992-01-09 | Kabushiki Kaisha Toshiba | Insulating magnetic wedge fitted into slot |
| US5258681A (en) * | 1990-06-29 | 1993-11-02 | Kabushiki Kaisha Toshiba | Magnetic slot wedges for dynamo-electric machines |
| ITMI20112143A1 (en) * | 2011-11-25 | 2013-05-26 | Phase Motion Control S R L | BRUSHLESS ENGINE WITH PERMANENT MAGNETS WITH INDUCTANCE CONTROL |
| CN106357019A (en) * | 2016-10-28 | 2017-01-25 | 上海大学 | Stator for reducing cogging torque of permanent magnet synchronous motor |
| WO2019058602A1 (en) | 2017-09-21 | 2019-03-28 | Kabushiki Kaisha Toshiba | Magnetic wedge and rotating electrical machine |
-
1981
- 1981-07-24 JP JP11523281A patent/JPS5819138A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121511A1 (en) * | 1990-06-29 | 1992-01-09 | Toshiba Kawasaki Kk | Magnetic slot wedge for dynamoelectric machine - has amorphous layer sandwiched between two thin non-magnetic layers |
| WO1992000625A1 (en) * | 1990-06-29 | 1992-01-09 | Kabushiki Kaisha Toshiba | Insulating magnetic wedge fitted into slot |
| US5252877A (en) * | 1990-06-29 | 1993-10-12 | Kabushiki Kaisha Toshiba | Slot insulating magnetic wedges |
| US5258681A (en) * | 1990-06-29 | 1993-11-02 | Kabushiki Kaisha Toshiba | Magnetic slot wedges for dynamo-electric machines |
| ITMI20112143A1 (en) * | 2011-11-25 | 2013-05-26 | Phase Motion Control S R L | BRUSHLESS ENGINE WITH PERMANENT MAGNETS WITH INDUCTANCE CONTROL |
| EP2597758A2 (en) | 2011-11-25 | 2013-05-29 | Phase Motion Control S.p.A. | a PM brushless motor with control of inductance |
| EP2597758A3 (en) * | 2011-11-25 | 2017-01-18 | Phase Motion Control S.p.A. | a PM brushless motor with control of inductance |
| CN106357019A (en) * | 2016-10-28 | 2017-01-25 | 上海大学 | Stator for reducing cogging torque of permanent magnet synchronous motor |
| WO2019058602A1 (en) | 2017-09-21 | 2019-03-28 | Kabushiki Kaisha Toshiba | Magnetic wedge and rotating electrical machine |
| US11258327B2 (en) | 2017-09-21 | 2022-02-22 | Kabushiki Kaisha Toshiba | Rotating electric machine having magnetic wedge with planes and having differences in magnetic permeability |
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