JP2002159152A - Stator of permanent magnet type motor - Google Patents
Stator of permanent magnet type motorInfo
- Publication number
- JP2002159152A JP2002159152A JP2000351737A JP2000351737A JP2002159152A JP 2002159152 A JP2002159152 A JP 2002159152A JP 2000351737 A JP2000351737 A JP 2000351737A JP 2000351737 A JP2000351737 A JP 2000351737A JP 2002159152 A JP2002159152 A JP 2002159152A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- stator
- soft magnetic
- magnetic layer
- permanent magnet
- 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.)
- Granted
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、ＦＡ、ＯＡに使用
されるブラシレスＤＣモータにおいて、特に平滑電機子
巻線形ブラシレスＤＣモータ、いわゆるギャップワイン
ディング方式の永久磁石形電動機の固定子に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brushless DC motor used in FA and OA, and more particularly to a stator of a brushless DC motor of a smooth armature winding type, a so-called gap winding type permanent magnet type electric motor.
【０００２】[0002]
【従来の技術】従来のこの種の永久磁石形電動機は、固
定子鉄心と回転子鉄心との間にできる大きな間隙の部分
に絶縁処理された巻線を配置し、この巻線を溝の無い固
定子鉄心あるいは回転子鉄心の周囲に所定の固定手段に
よって装着したものである。また、実開平２−１１４３
７２号公報に開示されているように、入力端子を設けた
フレキシブルプリント基板上に結線した円周方向に曲げ
た略四角形のコイルを有し、固定したステータコイルと
フレキシブルプリント基板を円筒状に形成し、該フレキ
シブルプリント基板を、永久磁石ロータと対向してラジ
アル方向にギャップを有する積層コアの内周に配設する
とともに、フレキシブルプリント基板を含むコイル両端
面または片端面を合成樹脂よりなるリング状スペーサと
コアとで形成された溝に挿入または圧入したものがあ
る。また、ギャップワインディング形リニアモータにお
いては実開平６−４１３８１号公報に示されるように良
熱伝導、非磁性材よりなる巻線固定枠の両面に平滑な帯
状コイルを設けてなる固定子と固定子の両面に空隙を介
して対向するよう永久磁石を設け、固定子に対して所定
の方向に可動自在な移動子からなり、前記帯状コイルの
両側面と間隙を持ち、巻線固定枠の上下部を勘合固定し
た薄肉長方形のキャンと、このキャンと帯状コイル間に
できる冷媒通路を設けたものがある。2. Description of the Related Art In this type of conventional permanent magnet type motor, an insulated winding is disposed in a large gap formed between a stator core and a rotor core, and the winding is formed without a groove. It is mounted around a stator core or a rotor core by predetermined fixing means. In addition, 2-1143
As disclosed in Japanese Patent Publication No. 72, there is a substantially rectangular coil bent in the circumferential direction connected on a flexible printed circuit board provided with input terminals, and a fixed stator coil and a flexible printed circuit board are formed in a cylindrical shape. The flexible printed circuit board is disposed on the inner periphery of the laminated core having a gap in the radial direction facing the permanent magnet rotor, and both end faces or one end face of the coil including the flexible printed board are formed in a ring shape made of synthetic resin. Some are inserted or pressed into a groove formed by a spacer and a core. Further, in a gap winding type linear motor, as shown in Japanese Utility Model Laid-Open No. 6-41381, a stator in which smooth band-shaped coils are provided on both surfaces of a winding fixing frame made of a non-magnetic material with good heat conduction, and a stator. Permanent magnets are provided on both sides of the coil so as to oppose each other with an air gap therebetween. The permanent magnets are movable with respect to the stator in a predetermined direction. There is a thin rectangular can in which the above is fitted and fixed and a refrigerant passage formed between the can and the band-shaped coil.
【０００３】[0003]
【発明が解決しようとする課題】ところで、ギャップワ
インディングモータはコイル自体にトルクが発生するた
め、コイルの固着には信頼性の高い方法を適用する必要
がありコストアップの要因となる。またコアに溝が存在
しないため、コイルの位置決め手段を別途用意する必要
がある。前述の実開平２−１１４３７２号公報ではコイ
ルとフレキシブル基板を円筒状に形成し、合成樹脂より
なるリング状のスペーサとコアとで形成された溝に挿入
または圧入するものが示されているが、コイルの円周方
向に働く力に対する問題は解決されていない。次に駆動
上の問題について述べる。ＡＣサーボモータは一般にＰ
ＷＭアンプと組み合わせて使用されている。ところが、
ギャップワインディングモータは磁気空隙長がスロット
ワインディングモータに比べ長いため、電機子インダク
タンスが小さい。このためＰＷＭアンプと組み合わせて
駆動すると電流波形に含まれる高調波成分が大きくなり
損失が増加するという問題点があった。従来のギャップ
ワインディングモータではＰＷＭアンプに代えリニアア
ンプにより駆動したり、モータとＰＷＭアンプの間にＡ
Ｃリアクトルを挿入するなどで対処するのが一般的であ
るが、リニアアンプは高価で効率が低く、電源電圧を高
くできないなどの問題があり、ＡＣリアクトルを挿入す
るとＡＣリアクトルの設置スペースが必要になりシステ
ムの小型化が困難になるなどの問題がある。そこで本発
明は電機子インダクタンスが大きく、コイルの機械的強
度が高く、生産の容易な永久磁石形電動機の固定子を提
供することを目的としている。Since the gap winding motor generates torque in the coil itself, it is necessary to apply a highly reliable method for fixing the coil, which causes an increase in cost. Further, since there is no groove in the core, it is necessary to separately prepare coil positioning means. In Japanese Utility Model Laid-Open Publication No. 2-114372, a coil and a flexible substrate are formed in a cylindrical shape, and the coil and the flexible substrate are inserted or press-fitted into a groove formed by a ring-shaped spacer made of a synthetic resin and a core. The problem with the force acting in the circumferential direction of the coil has not been solved. Next, driving problems will be described. AC servomotors are generally P
It is used in combination with a WM amplifier. However,
Since the gap winding motor has a longer magnetic gap length than the slot winding motor, the armature inductance is small. For this reason, there has been a problem that, when driven in combination with a PWM amplifier, higher harmonic components included in the current waveform are increased and the loss is increased. In a conventional gap winding motor, the motor is driven by a linear amplifier instead of a PWM amplifier.
It is common to deal with this by inserting a C reactor, but linear amplifiers are expensive, have low efficiency, and cannot have a high power supply voltage. If an AC reactor is inserted, installation space for the AC reactor is required. There is a problem that miniaturization of the system becomes difficult. Accordingly, it is an object of the present invention to provide a stator of a permanent magnet type motor having a large armature inductance, a high mechanical strength of a coil, and easy production.
【０００４】[0004]
【課題を解決するための手段】上記問題を解決するた
め、本発明は、同心的に所定の空隙をもって配置した回
転子鉄心と固定子鉄心の前記空隙に面するいずれか一方
の鉄心周面上に回転磁界形成用のコイルを装着した永久
磁石形電動機の固定子において、前記コイルの空隙対向
面に軟磁性層を設けたものである。この永久磁石形電動
機の固定子において、次の手段を設けることができる。 （１）前記軟磁性層をリングフェライトコアで構成す
る。 （２）前記軟磁性層を、樹脂に軟磁性粉を混入して成形
したもので構成する。 （３）前記軟磁性層を、エポキシ樹脂に鉄粉をバインド
した圧粉鉄心で構成する。（４）前記回転磁界形成用の
コイルとして非重ね集中巻コイルを使用するとともに、
前記軟磁性層上に、前記コイルの中央穴を位置合わせ固
定するコイル位置決め手段を設ける。 （５）前記コイル位置決め手段を、前記軟磁性層に設け
られた、前記コイルの中央穴が嵌まり込む薄肉の突起部
とする。 （６）前記軟磁性層として珪素鋼板を用い、この珪素鋼
板に、前記コイルの中央穴を位置合わせ固定するコイル
位置決め手段を設ける。 （７）前記コイル位置決め手段を、前記珪素鋼板に、カ
シメにより形成したコイル位置決め用突起とする。 （８）前記コイル位置決め手段を、前記珪素鋼板に、打
ち抜き、曲げ加工により形成したコイル位置決め用突起
とする。 （９）前記回転磁界形成用のコイルとして非重ね集中巻
コイルを使用するとともに、当該コイルの中央穴部中心
のみ前記磁性体層を無くした構成とする。 （１０）前記軟磁性層を、コイル挿入用の穴を設けたス
テータコアに一体で形成した構成とする。 （１１）前記軟磁性層と前記コイルの間に電気絶縁層を
設ける。 （１２）コイルの空隙対向面に設けた軟磁性層の厚さを
０．２ｍｍ〜０．７ｍｍとする。 上記手段により、電機子インダクタンスが増加するた
め、損失が低減できる。また、軟磁性層にコイルの位置
決め手段を設けることによりコイルの固定強度が高まる
とともに、位置決めも容易となる。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a rotor core and a stator core which are concentrically arranged with a predetermined gap on one of the core peripheral faces facing the gap. And a soft magnetic layer is provided on a surface of the permanent magnet type motor in which a coil for forming a rotating magnetic field is mounted. In the stator of the permanent magnet type electric motor, the following means can be provided. (1) The soft magnetic layer is composed of a ring ferrite core. (2) The soft magnetic layer is formed by mixing soft magnetic powder into a resin and molding. (3) The soft magnetic layer is composed of a dust core in which iron powder is bound to epoxy resin. (4) A non-overlapping concentrated winding coil is used as the coil for forming the rotating magnetic field,
Coil positioning means for positioning and fixing a center hole of the coil is provided on the soft magnetic layer. (5) The coil positioning means is a thin projection provided on the soft magnetic layer, into which the center hole of the coil fits. (6) A silicon steel plate is used as the soft magnetic layer, and the silicon steel plate is provided with coil positioning means for positioning and fixing the center hole of the coil. (7) The coil positioning means is a coil positioning projection formed by caulking on the silicon steel plate. (8) The coil positioning means is a coil positioning projection formed by punching and bending the silicon steel plate. (9) A non-overlapping concentrated winding coil is used as the coil for forming the rotating magnetic field, and the magnetic layer is eliminated only at the center of the center hole of the coil. (10) The soft magnetic layer is formed integrally with a stator core having a coil insertion hole. (11) An electric insulating layer is provided between the soft magnetic layer and the coil. (12) The thickness of the soft magnetic layer provided on the gap opposing surface of the coil is set to 0.2 mm to 0.7 mm. By the above means, the armature inductance is increased, so that the loss can be reduced. Further, by providing the coil positioning means in the soft magnetic layer, the fixing strength of the coil is increased and the positioning is also facilitated.
【０００５】[0005]
【発明の実施の形態】以下、本発明の実施の形態を、実
施例を参照しながら説明する。図１は本発明の第１の実
施例を示す正断面図である。本実施例は８極、６コイル
のインナーロータ形ギャップワインディングモータの一
例を示している。図において１は軟磁性層、２は集中巻
コイル、３はステータコア（固定子鉄心）、４は永久磁
石、５はロータヨーク、６は絶縁層、７は空隙を示して
いる。ステータコア３は珪素鋼板を積層して円筒状に構
成されている。磁気的な突極を有しないステータコア３
の内面には所要の絶縁耐圧を確保するため設けられた薄
い絶縁層６を介して集中巻コイル２が６個等間隔で配置
されている。集中巻コイル２は８極を構成するよう結線
され、モールドや樹脂含浸によりステータコア３と一体
に固着される。集中巻コイル２の空隙７との対向面には
軟磁性層１が固着されている。軟磁性層１は円筒状に形
成したソフトフェライトの焼結体（リングフェライトコ
ア）や鉄粉をエポキシ樹脂等でバインドした圧粉鉄心な
どで構成されている。永久磁石４はロータヨーク５の表
面に等間隔に固定されており、図示しない軸受によりス
テータコア３と同心に回転自在に保持される。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to examples. FIG. 1 is a front sectional view showing a first embodiment of the present invention. This embodiment shows an example of an 8-pole, 6-coil inner rotor type gap winding motor. In the figure, 1 is a soft magnetic layer, 2 is a concentrated winding coil, 3 is a stator core (stator core), 4 is a permanent magnet, 5 is a rotor yoke, 6 is an insulating layer, and 7 is a gap. Stator core 3 is formed in a cylindrical shape by stacking silicon steel plates. Stator core 3 without magnetic salient poles
On the inner surface, six concentrated winding coils 2 are arranged at equal intervals via a thin insulating layer 6 provided to secure a required withstand voltage. The concentrated winding coil 2 is connected to form eight poles, and is integrally fixed to the stator core 3 by molding or resin impregnation. The soft magnetic layer 1 is fixed to the surface of the concentrated winding coil 2 facing the gap 7. The soft magnetic layer 1 is composed of a sintered body of soft ferrite (ring ferrite core) formed in a cylindrical shape, a dust core formed by binding iron powder with an epoxy resin or the like. The permanent magnets 4 are fixed to the surface of the rotor yoke 5 at regular intervals, and are rotatably held concentrically with the stator core 3 by bearings (not shown).
【０００６】次に本発明の原理について説明する。軟磁
性層１は永久磁石４の磁界により磁気飽和する。しかし
ながら磁気飽和状態においても軟磁性材料の透磁率は空
気に比べはるかに高い。例えば珪素鋼板３５Ｈ３６０の
場合、Ｂ＝１．８Ｔでの比透磁率は約２００である。こ
のことから集中巻コイル２の内周面に軟磁性層１を設
け、集中巻コイル２を磁性体で取り囲めば、軟磁性層１
の磁気飽和を考慮しても集中巻コイル２の自己インダク
タンスを著しく増加することができる。また、軟磁性層
１は薄いため永久磁石４の起磁力損失も非常に小さい。
ギャップワインディングモータは自己インダクタンスが
小さいため、ＰＷＭ駆動すると電流波形に含まれる高調
波成分がスロットワインディングモータを駆動する場合
に比べ多くなり、損失の増大を招く。しかし本発明によ
れば従来のギャップワインデイングモータに比べ自己イ
ンダクタンスを著しく増加することができるのでＰＷＭ
駆動しても電流の高調波成分が少なく、損失を小さくで
きる。Next, the principle of the present invention will be described. The soft magnetic layer 1 is magnetically saturated by the magnetic field of the permanent magnet 4. However, even in the magnetically saturated state, the magnetic permeability of the soft magnetic material is much higher than that of air. For example, in the case of a silicon steel plate 35H360, the relative magnetic permeability at B = 1.8T is about 200. Therefore, if the soft magnetic layer 1 is provided on the inner peripheral surface of the concentrated winding coil 2 and the concentrated winding coil 2 is surrounded by a magnetic material, the soft magnetic layer 1
, The self-inductance of the concentrated winding coil 2 can be significantly increased. Further, since the soft magnetic layer 1 is thin, the magnetomotive force loss of the permanent magnet 4 is very small.
Since the gap winding motor has a small self-inductance, the higher harmonic components included in the current waveform are increased in the PWM driving as compared with the case of driving the slot winding motor, resulting in an increase in loss. However, according to the present invention, the self-inductance can be remarkably increased as compared with the conventional gap winding motor.
Even when driven, the harmonic components of the current are small, and the loss can be reduced.
【０００７】図２は本発明の第２の実施例を示す正断面
である。本例は８極、６コイルのインナーロータ形ギャ
ップワインディングモータの一例を示している。ステー
タコア３は珪素鋼板を打ち抜き積層することで構成され
る。珪素鋼板打ち抜きに際して、磁性体層の内周と一致
するようコア内周面１０を円形に打ち抜き、コア内周面
１０から磁性体層１の厚み分だけ外周側にオフセットし
た位置に、コイル装着用の円弧状穴８を明けることで、
ステータコア３と磁性体層１を一体で構成する。ステー
タ９の積層後、円弧状穴８の内面に絶縁処理を施し、Ｒ
成形した集中巻コイル２を円弧状穴８に挿入固定し、所
定の極数となるように結線すれば良い。第２の実施例を
適用することで、集中巻コイル２の自己インダクタンス
が増加するとともに集中巻コイル２の位置決め、固定が
容易になる。図３は本発明の第３の実施例における軟磁
性層を示したものである。軟磁性層１は珪素鋼板等の軟
磁性板よりなり、打ち抜き板金加工によって所定の間隔
で突起１１を設けた後、所定の直径となるように曲げ加
工により円筒状に形成される。突起１１に集中巻コイル
２の中央穴１２を勘合し、珪素鋼板の積層等により製作
されたステータコア３に装着することでステータ９を形
成する。FIG. 2 is a front sectional view showing a second embodiment of the present invention. This example shows an example of an 8-pole, 6-coil inner rotor type gap winding motor. The stator core 3 is formed by punching and stacking a silicon steel plate. At the time of punching a silicon steel plate, the core inner peripheral surface 10 is punched out in a circular shape so as to match the inner periphery of the magnetic layer, and the coil mounting position is offset from the core inner peripheral surface 10 to the outer peripheral side by the thickness of the magnetic layer 1. By drilling the arc-shaped hole 8 of
The stator core 3 and the magnetic layer 1 are integrally formed. After the stator 9 is laminated, the inner surface of the arc-shaped hole 8 is subjected to insulation treatment,
What is necessary is just to insert and fix the formed concentrated winding coil 2 into the arc-shaped hole 8 and connect it so as to have a predetermined number of poles. By applying the second embodiment, the self-inductance of the concentrated winding coil 2 increases and the positioning and fixing of the concentrated winding coil 2 become easy. FIG. 3 shows a soft magnetic layer according to a third embodiment of the present invention. The soft magnetic layer 1 is made of a soft magnetic plate such as a silicon steel plate. The protrusions 11 are provided at predetermined intervals by punching sheet metal processing, and then formed into a cylindrical shape by bending to a predetermined diameter. The stator 9 is formed by fitting the central hole 12 of the concentrated winding coil 2 to the projection 11 and mounting it on the stator core 3 manufactured by stacking silicon steel plates or the like.
【０００８】[0008]
【発明の効果】以上述べたように、本発明によれば、同
心的に所定の空隙をもって配置した回転子鉄心と固定子
鉄心の前記空隙に面するいずれか一方の鉄心周面上に回
転磁界形成用のコイルを装着した永久磁石形電動機の固
定子において、前記コイルの空隙対向面に軟磁性層を設
けたので、コイルの自己インダクタンスが増加し、これ
により、ＰＷＭ駆動時の電流リップルが低下し損失を低
減できる。また、回転磁界形成用に非重ね集中巻コイル
を適用するとともに、コイルの中央穴に合わせて軟磁性
層上にコイルの位置決め固定手段を設けたので、コイル
の位置決め、固定が容易にできる。As described above, according to the present invention, the rotating magnetic field is applied to one of the rotor cores and the stator core, which are concentrically arranged with a predetermined gap, facing the gap. In the stator of the permanent magnet type motor equipped with the forming coil, since the soft magnetic layer is provided on the surface of the coil facing the air gap, the self-inductance of the coil increases, thereby reducing the current ripple at the time of PWM driving. Loss can be reduced. In addition, a non-overlapping concentrated winding coil is applied for forming the rotating magnetic field, and the coil positioning and fixing means is provided on the soft magnetic layer in accordance with the center hole of the coil, so that the coil can be easily positioned and fixed.
【図１】 本発明の第１の実施例を示す正断面図であ
る。FIG. 1 is a front sectional view showing a first embodiment of the present invention.
【図２】 本発明の第２の実施例を示す正断面である。FIG. 2 is a front sectional view showing a second embodiment of the present invention.
【図３】 本発明の第３の実施例における軟磁性層を示
した斜視図である。FIG. 3 is a perspective view showing a soft magnetic layer according to a third embodiment of the present invention.
１：軟磁性層、２：集中巻コイル、３：ステータコア
（固定子鉄心）、４：永久磁石、５：ロータヨーク、
６：絶縁層、７：空隙、８：円弧状穴、９：ステータ、
１０：コア内周面、１１：突起、１２：コイル中央穴1: soft magnetic layer, 2: concentrated winding coil, 3: stator core (stator core), 4: permanent magnet, 5: rotor yoke,
6: insulating layer, 7: gap, 8: arc-shaped hole, 9: stator,
10: core inner peripheral surface, 11: protrusion, 12: coil center hole
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｋ 21/14 Ｈ０２Ｋ 21/14 Ｆターム(参考） 5H002 AA02 AA07 AB05 AB06 AE06 AE08 5H604 AA05 AA08 BB01 BB14 CC05 DB03 PB04 QA03 QA06 5H621 BB10 GA02 GA18 GB03 HH01 JK04 JK05 5H622 AA03 CA02 CA05 CA14 CB04 PP19 Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat II (reference) H02K 21/14 H02K 21/14 F term (reference) 5H002 AA02 AA07 AB05 AB06 AE06 AE08 5H604 AA05 AA08 BB01 BB14 CC05 DB03 PB04 QA03 QA06 5H621 BB10 GA02 GA18 GB03 HH01 JK04 JK05 5H622 AA03 CA02 CA05 CA14 CB04 PP19
Claims (13)
定子鉄心の前記空隙に面する鉄心周面上に回転磁界形成
用のコイルを装着した永久磁石形電動機の固定子におい
て、前記コイルの空隙に対向する面に軟磁性層を設けた
ことを特徴とする永久磁石形電動機の固定子。1. A stator of a permanent magnet type motor in which a coil for forming a rotating magnetic field is mounted on a circumferential surface of a stator core concentrically disposed with a predetermined gap and facing the gap, the gap of the coil A stator for a permanent magnet type electric motor characterized in that a soft magnetic layer is provided on a surface facing the motor.
構成したことを特徴とする請求項１記載の永久磁石形電
動機の固定子。2. The stator according to claim 1, wherein the soft magnetic layer is formed of a ring ferrite core.
して成形したもので構成したことを特徴とする請求項１
記載の永久磁石形電動機の固定子。3. The soft magnetic layer according to claim 1, wherein said soft magnetic layer is formed by mixing soft magnetic powder into resin.
The stator of the permanent magnet type electric motor described.
バインドした圧粉鉄心で構成した請求項３記載の永久磁
石形電動機の固定子。4. The stator according to claim 3, wherein the soft magnetic layer is formed of a dust core obtained by binding iron powder to an epoxy resin.
ね集中巻コイルを使用するとともに、前記軟磁性層上
に、前記コイルの中央穴を位置合わせ固定するコイル位
置決め手段を設けたことを特徴とする、請求項１記載の
永久磁石形電動機の固定子。5. A non-overlapping concentrated winding coil is used as the rotating magnetic field forming coil, and a coil positioning means for positioning and fixing a center hole of the coil is provided on the soft magnetic layer. The stator of the permanent magnet type electric motor according to claim 1, wherein
層に設けられた、前記コイルの中央穴が嵌まり込む薄肉
の突起部であることを特徴とする、請求項５記載の永久
磁石形電動機の固定子。6. The permanent magnet type electric motor according to claim 5, wherein the coil positioning means is a thin projection provided on the soft magnetic layer and into which a central hole of the coil fits. Stator.
の珪素鋼板に、前記コイルの中央穴を位置合わせ固定す
るコイル位置決め手段を設けたことを特徴とする、請求
項１記載の永久磁石形電動機の固定子。7. The permanent magnet type according to claim 1, wherein a silicon steel plate is used as said soft magnetic layer, and said silicon steel plate is provided with coil positioning means for positioning and fixing a center hole of said coil. Electric motor stator.
板に、カシメにより形成したコイル位置決め用突起であ
る請求項７記載の永久磁石形電動機の固定子。8. The stator according to claim 7, wherein said coil positioning means is a coil positioning projection formed by caulking on said silicon steel plate.
板に、打ち抜き、曲げ加工により形成したコイル位置決
め用突起である請求項７記載の永久磁石形電動機の固定
子。9. The permanent magnet type motor stator according to claim 7, wherein said coil positioning means is a coil positioning projection formed by punching and bending said silicon steel plate.
重ね集中巻コイルを使用するとともに、当該コイルの中
央穴部中心のみ前記磁性体層を無くしたことを特徴とす
る請求項１記載の永久磁石形電動機の固定子。10. The permanent magnet according to claim 1, wherein a non-overlapping concentrated winding coil is used as the coil for forming the rotating magnetic field, and the magnetic layer is eliminated only at the center of the center hole of the coil. Type motor stator.
設けたステータコアに一体で形成したことを特徴とする
請求項４記載の永久磁石形電動機の固定子。11. The stator according to claim 4, wherein the soft magnetic layer is formed integrally with a stator core having a coil insertion hole.
絶縁層を設けたことを特徴とする請求項１〜１１のいず
れかの項に記載の永久磁石形電動機の固定子。12. The stator according to claim 1, wherein an electric insulating layer is provided between the soft magnetic layer and the coil.
の厚さを０．２ｍｍ〜０．７ｍｍとしたことを特徴とす
る請求項１〜１２のいずれかの項に記載の永久磁石形電
動機の固定子。13. The permanent magnet type according to claim 1, wherein the thickness of the soft magnetic layer provided on the gap opposing surface of the coil is 0.2 mm to 0.7 mm. Electric motor stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000351737A JP4650707B2 (en) | 2000-11-17 | 2000-11-17 | Permanent magnet type motor stator and permanent magnet type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000351737A JP4650707B2 (en) | 2000-11-17 | 2000-11-17 | Permanent magnet type motor stator and permanent magnet type motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002159152A true JP2002159152A (en) | 2002-05-31 |
| JP4650707B2 JP4650707B2 (en) | 2011-03-16 |
Family
ID=18824744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000351737A Expired - Fee Related JP4650707B2 (en) | 2000-11-17 | 2000-11-17 | Permanent magnet type motor stator and permanent magnet type motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4650707B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004010565A1 (en) * | 2002-07-18 | 2004-01-29 | Kabushiki Kaisha Yaskawa Denki | Gap-winding motor |
| JP2005198483A (en) * | 2003-12-30 | 2005-07-21 | Hyundai Motor Co Ltd | Brushless direct-current motor |
| JP2007053867A (en) * | 2005-08-19 | 2007-03-01 | Yaskawa Electric Corp | Permanent-magnet motor |
| JP2009044825A (en) * | 2007-08-07 | 2009-02-26 | Nippo Denki Kk | Slotless motor |
| JP2009100489A (en) * | 2007-10-12 | 2009-05-07 | Mitsubishi Electric Corp | Slotless rotary electric machine |
| US9837867B2 (en) | 2014-07-21 | 2017-12-05 | Regal Beloit America, Inc. | Electric machine, rotor and associated method |
| JP2021065062A (en) * | 2019-10-16 | 2021-04-22 | 株式会社デンソー | Armature manufacturing method and armature |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0158264U (en) * | 1987-10-07 | 1989-04-12 | ||
| JPH06141500A (en) * | 1992-10-23 | 1994-05-20 | Japan Servo Co Ltd | Coreless motor |
| JPH09275656A (en) * | 1996-04-03 | 1997-10-21 | Ebara Corp | Canned motor |
-
2000
- 2000-11-17 JP JP2000351737A patent/JP4650707B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0158264U (en) * | 1987-10-07 | 1989-04-12 | ||
| JPH06141500A (en) * | 1992-10-23 | 1994-05-20 | Japan Servo Co Ltd | Coreless motor |
| JPH09275656A (en) * | 1996-04-03 | 1997-10-21 | Ebara Corp | Canned motor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004010565A1 (en) * | 2002-07-18 | 2004-01-29 | Kabushiki Kaisha Yaskawa Denki | Gap-winding motor |
| JP2005198483A (en) * | 2003-12-30 | 2005-07-21 | Hyundai Motor Co Ltd | Brushless direct-current motor |
| JP2007053867A (en) * | 2005-08-19 | 2007-03-01 | Yaskawa Electric Corp | Permanent-magnet motor |
| JP2009044825A (en) * | 2007-08-07 | 2009-02-26 | Nippo Denki Kk | Slotless motor |
| JP2009100489A (en) * | 2007-10-12 | 2009-05-07 | Mitsubishi Electric Corp | Slotless rotary electric machine |
| US9837867B2 (en) | 2014-07-21 | 2017-12-05 | Regal Beloit America, Inc. | Electric machine, rotor and associated method |
| JP2021065062A (en) * | 2019-10-16 | 2021-04-22 | 株式会社デンソー | Armature manufacturing method and armature |
| JP7363349B2 (en) | 2019-10-16 | 2023-10-18 | 株式会社デンソー | Armature manufacturing method and armature |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4650707B2 (en) | 2011-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11456632B2 (en) | Consequent-pole type rotor, electric motor, air conditioner, and method for manufacturing consequent-pole type rotor | |
| US11190069B2 (en) | Consequent-pole-type rotor, electric motor, and air conditioner | |
| CN109075681B (en) | Motor and air conditioner | |
| JP3535012B2 (en) | Radial gap type small cylindrical rotating electric machine | |
| JP2001238377A (en) | Rotating electric machine | |
| JP2015510387A (en) | Electric machine | |
| JP2010200518A (en) | Turntable for permanent magnet rotary machine, and manufacturing method for permanent magnet rotary machine | |
| JP2013135541A (en) | Axial gap rotary electric machine | |
| JPH1169749A (en) | Motor structure and manufacture thereof | |
| JP2007068330A (en) | Three-phase permanent magnet brushless motor | |
| JPH11146617A (en) | Brushless dc motor structure | |
| JP2001037119A (en) | Permanent magnet type synchronous motor | |
| JP2000278903A (en) | Motor and its manufacture | |
| JP2009055750A (en) | Claw pole type pm motor and its manufacturing method | |
| JP4650707B2 (en) | Permanent magnet type motor stator and permanent magnet type motor | |
| JP2010183692A (en) | Magnet for motor, rotor for ipm motor, and ipm motor | |
| CN111969747A (en) | Rotor structure and motor with same | |
| JP2003009491A (en) | Permanent magnet type brushless dc motor | |
| JPH07135745A (en) | Core of motor | |
| JP3083510B2 (en) | Brushless motor, method of manufacturing the same, and method of manufacturing magnet rotor | |
| JP2000245124A (en) | Smooth core armature wound motor | |
| JP2009284568A (en) | Electromagnetic structure of slotless brushless dc motor | |
| JP2001086710A (en) | Method for manufacturing permanent-magnet motor and magnetizing device | |
| CN110768501A (en) | Efficient stator core, stator assembling and forming method, motor and air conditioner | |
| JP4771278B2 (en) | Permanent magnet type motor and method for manufacturing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20071009 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100721 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100730 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100924 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101119 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20101202 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131224 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20141224 Year of fee payment: 4 |
|
| LAPS | Cancellation because of no payment of annual fees |