JPH07135745A - Core of motor - Google Patents
Core of motorInfo
- Publication number
- JPH07135745A JPH07135745A JP28119993A JP28119993A JPH07135745A JP H07135745 A JPH07135745 A JP H07135745A JP 28119993 A JP28119993 A JP 28119993A JP 28119993 A JP28119993 A JP 28119993A JP H07135745 A JPH07135745 A JP H07135745A
- Authority
- JP
- Japan
- Prior art keywords
- core
- laminated core
- winding
- laminated
- axial direction
- 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
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電動機のコアに関し、
特に、巻線を配置するための複数の溝部周辺の巻線に接
触する表面に電気絶縁性の被膜を塗着した電動機のコア
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor core,
In particular, the present invention relates to a core of an electric motor in which an electrically insulating film is applied to a surface of a plurality of grooves for arranging the winding, which is in contact with the winding.
【０００２】[0002]
【従来の技術】電動機のステータやロータでは、磁気回
路を形成するコア（鉄心）の周部に設けた複数の溝部
に、導電材料からなる巻線が設置される。巻線には絶縁
被覆が施されるが、さらに、コアと巻線とを電気的に絶
縁する目的で、一般にコアの各溝部表面及び軸方向両端
面の巻線に接触する部分に絶縁手段が配置される。従
来、この種の絶縁手段として、絶縁紙や絶縁性樹脂成形
体からなる絶縁部材が知られている。絶縁部材は、コア
の成形工程とは別工程で形成され、コアの各溝部表面及
び軸方向両端面を被覆して配置される。なお、本明細書
における溝部という用語は、電機子巻線や非突極機で界
磁巻線を収容するスロットだけでなく、突極機で界磁巻
線が巻付けられる各突極の間の空所を含む。2. Description of the Related Art In a stator or rotor of an electric motor, windings made of a conductive material are installed in a plurality of grooves provided in a peripheral portion of a core (iron core) forming a magnetic circuit. Insulation coating is applied to the winding wire.In addition, in order to electrically insulate the core from the winding wire, an insulating means is generally provided on the surface of each groove of the core and on the end surfaces in the axial direction in contact with the winding wire. Will be placed. Conventionally, as this type of insulating means, an insulating member made of insulating paper or an insulating resin molded body has been known. The insulating member is formed in a step different from the molding step of the core, and is arranged so as to cover the surface of each groove of the core and both end surfaces in the axial direction. It should be noted that the term “groove portion” in this specification means not only a slot for accommodating a field winding in an armature winding or a non-salient pole machine but also between salient poles around which the field winding is wound in a salient pole machine. Including vacant spaces.
【０００３】絶縁紙からなる従来の絶縁部材は、多様な
寸法のコアに容易に対応できるが、溝部への設置作業が
煩雑である。また、樹脂成形体からなる絶縁部材は、コ
アの寸法及び形状に対応して多種類を成形する必要があ
るので、材料コスト及び設備コストが嵩む。また、いず
れの場合も絶縁部材はある程度の厚みが必要であり、そ
の結果、特に小形電動機において、溝部内空間における
導電体の占積率を増加できない課題が生じる。このよう
な課題を解決するために、上記の絶縁手段として、電気
絶縁性を有する液体樹脂材料や粉末材料を、コアの各溝
部表面及び軸方向両端面に例えば静電塗装等の塗装方法
によって被着したものが公知である。Conventional insulating members made of insulating paper can easily accommodate cores of various sizes, but the installation work in the groove is complicated. In addition, since it is necessary to mold many types of insulating members made of a resin molded body according to the size and shape of the core, material cost and equipment cost increase. Further, in any case, the insulating member needs to have a certain thickness, and as a result, there arises a problem that the space factor of the conductor in the groove internal space cannot be increased, especially in a small electric motor. In order to solve such a problem, as the above-mentioned insulating means, a liquid resin material or a powder material having an electric insulation property is coated on each groove surface and both axial end surfaces of the core by a coating method such as electrostatic coating. What is worn is known.
【０００４】[0004]
【発明が解決しようとする課題】液体樹脂材料や粉末材
料の被膜によってコアと巻線との間を確実に絶縁するた
めには、コアの所要部位表面に被膜を可及的均一厚みに
塗着する必要がある。しかしながら、一般に略直交する
コアの溝部表面と軸方向端面との接続領域に、塗装方法
によって他の部位と同一厚みの絶縁被膜を形成すること
は困難であり、接続領域の絶縁被膜が薄肉になる課題を
生じる。コアの溝部表面と軸方向端面との接続領域は、
溝部に配置される巻線との摩擦接触を生じ易いので、こ
の接続領域の絶縁被膜が薄肉であると被膜破壊により絶
縁不良を生じる危惧が高まる。In order to ensure the insulation between the core and the winding by the coating of the liquid resin material or the powder material, the coating is applied to the surface of the required portion of the core with a thickness as uniform as possible. There is a need to. However, in general, it is difficult to form an insulating coating having the same thickness as other portions on the connection region between the groove surface of the core and the axial end face which are substantially orthogonal to each other, and the insulating coating in the connection region becomes thin. Create challenges. The connection area between the groove surface of the core and the axial end surface is
Since frictional contact with the windings arranged in the groove is likely to occur, if the insulating coating in this connection region is thin, there is a greater risk of defective insulation due to film destruction.
【０００５】このような危惧は、例えば同期電動機の電
機子において、所定巻数のコイルを１つの溝部に集中さ
せる集中巻形態の巻線をコアに設置する場合に顕著とな
る。集中巻形態の巻線では、一般に型巻コイルを溝部に
挿入する分布巻形態とは異なり、溝部を画定するコアの
１つの突部（歯）に例えば自動巻付け装置によってコイ
ルが巻付けられるので、巻付け時に巻線に加わる張力が
特に上記接続領域との接触部位に集中して絶縁被膜に損
傷を及ぼすのである。この場合、巻線のコイル線径が大
きいほど巻付け張力は大きくなり、損傷を及ぼす危惧が
高まる。したがって従来、液体樹脂材料や粉末材料の被
膜からなる絶縁手段は、巻線のコイル線径が小さい比較
的小形の電動機に使用されていた。Such a fear becomes remarkable when, for example, in an armature of a synchronous motor, a concentrated winding type winding in which a coil having a predetermined number of turns is concentrated in one groove is installed in a core. In the concentrated winding type winding, unlike the distributed winding type in which the die-wound coil is generally inserted in the groove portion, the coil is wound around one protrusion (tooth) of the core defining the groove portion by, for example, an automatic winding device. The tension applied to the winding wire at the time of winding concentrates particularly on the contact portion with the connection area, and damages the insulating coating. In this case, the larger the coil wire diameter of the winding, the higher the winding tension and the risk of damage. Therefore, conventionally, the insulating means formed of a coating of a liquid resin material or a powder material has been used for a relatively small electric motor having a small coil wire diameter.
【０００６】したがって本発明の目的は、コアと巻線と
の間の電気的絶縁手段として作用する液体樹脂材料や粉
末材料の被膜を、コアの巻線に接触する部分に略均一厚
みに塗着できるようにし、以てコアと巻線との間の電気
的絶縁性を向上させて信頼性に優れた電動機の製造を可
能にする電動機のコアを提供することである。Therefore, an object of the present invention is to apply a coating of a liquid resin material or a powder material, which acts as an electrical insulating means between the core and the winding, to the portion of the core that contacts the winding in a substantially uniform thickness. It is possible to improve the electrical insulation between the core and the winding, and to provide a motor core that enables the manufacture of a highly reliable motor.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、巻線を配置するための複数の溝部を画定
する放射状突部と、少なくとも溝部の壁面及び突部の軸
方向両端面に塗着される電気絶縁材料の被膜とを具備し
た電動機のコアにおいて、少なくとも溝部の壁面と突部
の軸方向両端面との接続領域に曲面を形成したことを特
徴とする電動機のコアを提供する。In order to achieve the above object, the present invention provides a radial projection defining a plurality of grooves for disposing windings, and at least a wall surface of the groove and both axial ends of the projection. A core of an electric motor comprising a coating of an electrically insulating material applied to a surface thereof, wherein a curved surface is formed at least in a connection region between a wall surface of the groove and both axial end surfaces of the protrusion. provide.
【０００８】[0008]
【作用】少なくとも溝部の壁面と突部の軸方向両端面と
の接続領域に形成した曲面は、接続領域への所望厚みの
電気的絶縁被膜の塗着を可能とし、それにより、コアの
巻線に接触する部分に絶縁被膜が略均一厚みに塗着され
る。その結果、コアの溝部に配置される巻線による被膜
破壊が防止され、コアと巻線との間の電気的絶縁性が向
上する。The curved surface formed at least in the connection region between the wall surface of the groove and the axially opposite end faces of the protrusion allows the electrically insulating coating of a desired thickness to be applied to the connection region, whereby the winding of the core is wound. The insulating coating is applied to the portion in contact with the electrode with a substantially uniform thickness. As a result, the film destruction due to the winding arranged in the groove of the core is prevented, and the electrical insulation between the core and the winding is improved.
【０００９】[0009]
【実施例】以下、添付図面を参照して、本発明をその実
施例に基づきさらに詳細に説明する。図１は、本発明の
実施例による積層コア１０を備えた電動機のステータ１
２を示す。ステータ１２は、珪素鋼板等の磁性薄板材料
から打抜かれた複数の薄板１４の積層体からなる積層コ
ア１０と、積層コア１０に組込まれる巻線１６とを備え
る。積層コア１０は、内周部に巻線１６を配置するため
の複数のスロット１８を備える。各スロット１８は、半
径方向内方へ延びる複数の突歯２０によって画定され
る。各突歯２０の先端面は、図示しないロータを空隙を
介して囲繞するように、所定の同一円周面に沿って配置
される。巻線１６は、予め絶縁被覆を施され、集中巻形
態に従って積層コア１０の各突歯２０に個別に巻付けら
れる。なお、周知のように積層コア１０は、複数の薄板
１４を例えば相互にかしめることにより連結した後、締
着用のロッド部材（図示せず）等を使用して一体に固定
支持される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail based on its embodiments with reference to the accompanying drawings. FIG. 1 shows a stator 1 of an electric motor including a laminated core 10 according to an embodiment of the present invention.
2 is shown. The stator 12 includes a laminated core 10 including a laminated body of a plurality of thin plates 14 punched out from a magnetic thin plate material such as a silicon steel plate, and a winding 16 incorporated in the laminated core 10. The laminated core 10 includes a plurality of slots 18 for disposing the winding wire 16 on the inner peripheral portion. Each slot 18 is defined by a plurality of radially extending inward teeth 20. The tip surfaces of the respective protruding teeth 20 are arranged along a predetermined same circumferential surface so as to surround a rotor (not shown) via a gap. The winding wire 16 is pre-insulated and wound around each of the protruding teeth 20 of the laminated core 10 individually according to the concentrated winding form. As is well known, the laminated core 10 is integrally fixedly supported by using a fastening rod member (not shown) or the like after the plurality of thin plates 14 are connected by caulking each other.
【００１０】図２に示すように、ステータ１２は、積層
コア１０と巻線１６との間を電気的に絶縁する絶縁手段
として、例えばエポキシ系樹脂等の、電気絶縁性及び耐
熱性に優れた粉末樹脂材料の被膜２２を備える。被膜２
２は、少なくとも各スロット１８の壁面２４及び各突歯
２０の軸方向両端面２６に、例えば静電塗装方法によっ
て塗着される。もちろん被膜２２は、粉末樹脂材料に限
らず液体樹脂材料によっても形成できる。この場合、比
較的に粘性が高い液体樹脂材料を使用することが好まし
い。As shown in FIG. 2, the stator 12 is excellent in electrical insulation and heat resistance such as epoxy resin as an insulating means for electrically insulating the laminated core 10 and the winding 16 from each other. A coating 22 of powdered resin material is provided. Film 2
2 is applied to at least the wall surface 24 of each slot 18 and both axial end surfaces 26 of each tooth 20 by, for example, an electrostatic coating method. Of course, the coating film 22 can be formed not only by a powder resin material but also by a liquid resin material. In this case, it is preferable to use a liquid resin material having a relatively high viscosity.
【００１１】図３に拡大して示すように、積層コア１０
を形成する薄板１４の縁部には、磁性薄板材料から打抜
かれる際に打抜き方向に対応して曲面部分２８と直交部
分３０とが形成される。積層コア１０では、各スロット
１８の壁面２４と各突歯２０の軸方向両端面２６との各
接続領域３２に曲面部分２８を配置するように、薄板１
４が積層される。すなわち、積層コア１０の軸方向両端
に配置される各薄板１４ａは、いずれも曲面部分２８を
軸方向端面２６側に向けて積層される。他の薄板１４の
積層方向は任意であるが、図３に示すように、一方の薄
板１４ａのみを逆向きに積層することが、積層工程の複
雑化を防止する観点で有利である。As shown enlarged in FIG. 3, the laminated core 10
A curved surface portion 28 and an orthogonal portion 30 are formed on the edge portion of the thin plate 14 forming the above, corresponding to the punching direction when punching from the magnetic thin plate material. In the laminated core 10, the thin plate 1 is arranged so that the curved surface portion 28 is arranged in each connection region 32 between the wall surface 24 of each slot 18 and both axial end surfaces 26 of each protruding tooth 20.
4 are stacked. That is, each of the thin plates 14a arranged at both ends in the axial direction of the laminated core 10 is laminated with the curved surface portion 28 facing the axial end surface 26 side. Although the laminating direction of the other thin plates 14 is arbitrary, laminating only one thin plate 14a in the opposite direction as shown in FIG. 3 is advantageous from the viewpoint of preventing complication of the laminating process.
【００１２】上記手順で薄板１４，１４ａを積層してな
る積層コア１０は、薄板１４ａの曲面部分２８により接
続領域３２に曲面が形成されるので、各スロット１８の
壁面２４、各突歯２０の軸方向両端面２６、及び各接続
領域３２に、絶縁性の被膜２２を略均一厚みに塗着する
ことが可能となる（図３参照）。したがって、巻線１６
のコイル線径が大きい場合にも、ステータ１２の積層コ
ア１０と巻線１６との間の絶縁性を良好に維持すること
ができる。In the laminated core 10 formed by laminating the thin plates 14 and 14a by the above-described procedure, the curved surface portion 28 of the thin plate 14a forms a curved surface in the connection region 32, so that the wall surface 24 of each slot 18 and the shaft of each protruding tooth 20 are formed. It is possible to apply the insulating coating 22 to both end faces 26 in the direction and each connection region 32 in a substantially uniform thickness (see FIG. 3). Therefore, winding 16
Even when the coil wire diameter is large, the insulation between the laminated core 10 of the stator 12 and the winding wire 16 can be favorably maintained.
【００１３】上記の積層コア１０は、接続領域３２にお
ける被膜２２の厚みの均一性を向上させるために、例え
ば図４に示すように、軸方向両端に配置される各薄板１
４ａを加工してさらに大きな曲率の曲面部分２８′を形
成することもできる。この場合、薄板１４ａの曲面部分
２８′は、例えば磁性薄板材料からの打抜き後に、別工
程で面打ち金型によって曲面部分２８を打ち直すことに
より形成することができる。In order to improve the uniformity of the thickness of the coating film 22 in the connection region 32, the laminated core 10 has the thin plates 1 arranged at both ends in the axial direction, as shown in FIG. 4, for example.
It is also possible to process 4a to form a curved surface portion 28 'having a larger curvature. In this case, the curved surface portion 28 'of the thin plate 14a can be formed, for example, by punching from a magnetic thin plate material and then re-punching the curved surface portion 28 by a punching die in a separate step.
【００１４】図５は、本発明の他の実施例による電動機
の積層コア３４を示す。積層コア３４は、磁性薄板材料
から打抜かれた複数の薄板３６の積層体と、この積層体
の軸方向両端に固定される端板３８とからなる。各端板
３８は、好ましくは薄板３６と同様の磁性材料からな
り、薄板３６と同一の平面形状と薄板３６よりも大きな
厚みとを有する。積層コア３４の内周部には、半径方向
内方へ延びる複数の突歯４０によって複数のスロット４
２が画定される。さらに、各スロット４２の壁面４４、
及び各突歯４０の軸方向両端面４６を含む積層コア３４
の軸方向両端面に、電気絶縁性及び耐熱性に優れた粉末
樹脂材料の被膜４８が塗着される。なお、各端板３８
は、複数の薄板３６と同様に例えばかしめにより積層体
に固定され、ロッド部材（図示せず）等により一体に支
持される。FIG. 5 shows a laminated core 34 of an electric motor according to another embodiment of the present invention. The laminated core 34 includes a laminated body of a plurality of thin plates 36 punched out from a magnetic thin plate material, and end plates 38 fixed to both axial ends of the laminated body. Each end plate 38 is preferably made of the same magnetic material as the thin plate 36, and has the same planar shape as the thin plate 36 and a thickness larger than that of the thin plate 36. The inner peripheral portion of the laminated core 34 has a plurality of slots 4 formed by a plurality of protruding teeth 40 extending inward in the radial direction.
2 is defined. Furthermore, the wall surface 44 of each slot 42,
And the laminated core 34 including both axial end surfaces 46 of each tooth 40.
A coating 48 of a powder resin material having excellent electric insulation and heat resistance is applied to both axial end faces of the. In addition, each end plate 38
Like the plurality of thin plates 36, is fixed to the laminated body by, for example, caulking, and is integrally supported by a rod member (not shown) or the like.
【００１５】図６に拡大して示すように、各端板３８
は、積層コア３４のスロット４２に面する縁部に、所定
曲率の曲面部分５０を備える。曲面部分５０は、薄板１
４ａの曲面部分２８′と同様に面打ち金型によって形成
することができる。積層コア３４では、各スロット４２
の壁面４４と各突歯４０の軸方向両端面４６を含む積層
コア３４の軸方向両端面との間の接続領域５２に曲面部
分５０を配置するように、各端板３８が薄板３６の積層
体の軸方向両端に固定され、それにより接続領域５２に
曲面が形成される。このような構成により、大形のコア
においても充分な大きさの曲率を有する曲面を接続領域
５２に形成することができ、それにより、各スロット４
２の壁面４４、各突歯４０の軸方向両端面４６を含む積
層コア３４の軸方向両端面、及び接続領域５２に、絶縁
性の被膜４８を略均一厚みに塗着することが可能とな
る。As shown enlarged in FIG. 6, each end plate 38
Is provided with a curved surface portion 50 having a predetermined curvature at the edge of the laminated core 34 facing the slot 42. The curved surface portion 50 is the thin plate 1.
Like the curved surface portion 28 'of 4a, it can be formed by a chamfering die. In the laminated core 34, each slot 42
Each end plate 38 is a laminated body of thin plates 36 so that the curved surface portion 50 is arranged in the connection region 52 between the wall surface 44 of each of the teeth 40 and the axial end faces of the laminated core 34 including the axial end faces 46 of each protruding tooth 40. Are fixed to both ends in the axial direction, and thereby curved surfaces are formed in the connection region 52. With such a configuration, a curved surface having a sufficient curvature can be formed in the connection region 52 even in a large core, whereby each slot 4 can be formed.
The insulating coating 48 can be applied to the two wall surfaces 44, the axial end surfaces of the laminated core 34 including the axial end surfaces 46 of the protruding teeth 40, and the connection region 52 in a substantially uniform thickness.
【００１６】上記各実施例では、本発明によるコアを、
磁性薄板材料の積層体からなる積層コアに適用したもの
として説明したが、本発明はこれに限定することなく、
例えば磁性粉状材料から焼結によって一体成形したコア
にも適用できる。この場合、焼結の後工程で例えば機械
加工により、コアの少なくとも溝部の壁面と突部の軸方
向両端面との接続領域に曲面が形成される。In each of the above embodiments, the core according to the present invention is
Although described as being applied to a laminated core composed of a laminated body of magnetic thin plate material, the present invention is not limited to this,
For example, it can be applied to a core integrally formed by sintering a magnetic powder material. In this case, a curved surface is formed at least in the connecting region between the wall surface of the groove and the axially opposite end surfaces of the protrusion in the post-sintering step, for example, by machining.
【００１７】[0017]
【発明の効果】以上の説明から明らかなように、本発明
によれば、電動機のコアの、少なくとも巻線を配置する
ための複数の溝部の壁面と溝部を画定する突部の軸方向
両端面との接続領域に曲面を形成したので、巻線に接触
するコア部分へ電気的絶縁被膜を略均一厚みに塗着する
ことが可能となる。その結果、コアの溝部に配置される
巻線による被膜破壊が防止されて、コアと巻線との間の
電気的絶縁性が向上し、以て信頼性に優れた電動機が製
造される。As is apparent from the above description, according to the present invention, the axial end surfaces of the wall of a plurality of grooves for arranging at least windings of the core of the electric motor and the projections defining the grooves are formed. Since the curved surface is formed in the connection area with the core, it is possible to apply the electrically insulating coating to the core portion in contact with the winding in a substantially uniform thickness. As a result, damage to the coating film due to the winding disposed in the groove of the core is prevented, the electrical insulation between the core and the winding is improved, and a highly reliable electric motor is manufactured.
【図１】本発明の実施例による積層コアを備えた電動機
のステータの概略斜視図である。FIG. 1 is a schematic perspective view of a stator of an electric motor including a laminated core according to an embodiment of the present invention.
【図２】図１の積層コアの図で、線II−IIに沿って切り
取った部分斜視図である。FIG. 2 is a partial perspective view of the laminated core of FIG. 1 taken along line II-II.
【図３】図２の線 III−III に沿った部分拡大断面図で
ある。3 is a partial enlarged cross-sectional view taken along the line III-III in FIG.
【図４】図３の類型図で、変形例による積層コアの部分
拡大断面図である。FIG. 4 is a partial enlarged cross-sectional view of a laminated core according to a modification, which is a pattern diagram of FIG. 3.
【図５】図２の類型図で、他の実施例による積層コアの
部分斜視図である。5 is a schematic diagram of FIG. 2 and is a partial perspective view of a laminated core according to another embodiment. FIG.
【図６】図５の線VI−VIに沿った部分拡大断面図であ
る。6 is a partially enlarged cross-sectional view taken along the line VI-VI of FIG.
１０，３４…積層コア １４，１４ａ，３６…薄板 １６…巻線 １８，４２…スロット ２０，４０…突歯 ２２，４８…被膜 ２４，４４…壁面 ２６，４６…軸方向端面 ２８，２８′，５０…曲面部分 ３２，５２…接続領域 ３８…端板 10, 34 ... Laminated core 14, 14a, 36 ... Thin plate 16 ... Winding 18, 42 ... Slot 20, 40 ... Protrusion tooth 22, 48 ... Coating 24, 44 ... Wall surface 26, 46 ... Axial end face 28, 28 ', 50 ... Curved surface parts 32, 52 ... Connection area 38 ... End plate
Claims (1)
する放射状突部と、少なくとも該溝部の壁面及び該突部
の軸方向両端面に塗着される電気絶縁材料の被膜とを具
備した電動機のコアにおいて、 少なくとも前記溝部の壁面と前記突部の軸方向両端面と
の接続領域に曲面を形成したことを特徴とする電動機の
コア。1. A radial projection that defines a plurality of grooves for disposing windings, and a coating of an electrically insulating material that is applied to at least the wall surface of the groove and both axial end surfaces of the projection. In the core of the electric motor described above, a curved surface is formed at least in a connection region between the wall surface of the groove and both axial end surfaces of the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28119993A JPH07135745A (en) | 1993-11-10 | 1993-11-10 | Core of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28119993A JPH07135745A (en) | 1993-11-10 | 1993-11-10 | Core of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07135745A true JPH07135745A (en) | 1995-05-23 |
Family
ID=17635732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28119993A Pending JPH07135745A (en) | 1993-11-10 | 1993-11-10 | Core of motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07135745A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002058211A1 (en) * | 2001-01-20 | 2002-07-25 | Robert Bosch Gmbh | Stator for electrical machines and method for producing the same |
| EP1249920A2 (en) * | 2001-04-09 | 2002-10-16 | Kabushiki Kaisha Moric | Stator for rotary electric machine |
| JP2003009433A (en) * | 2001-06-22 | 2003-01-10 | Hitachi Ltd | Rotary electric machine |
| FR2847084A1 (en) * | 2002-11-13 | 2004-05-14 | Gerard Koehler | Sheet metal for magnetic circuit of a turning rotating dynamo electric machine, has variable reluctivity, cross flow and Vernier effect, where sheet metal can be stacked in direction of displacement on rolled strip of uniform width |
| KR100449469B1 (en) * | 2001-03-15 | 2004-09-18 | 미쓰비시덴키 가부시키가이샤 | Stator for rotary machine and method of manufacturing the stator |
| WO2005101612A1 (en) * | 2004-04-12 | 2005-10-27 | Mitsubishi Denki Kabushiki Kaisha | Stator of dynamo-electric machine |
| JP2006304594A (en) * | 2005-04-22 | 2006-11-02 | Isa Innovation Sa | Grooved part of electric motor |
| JP2007267522A (en) * | 2006-03-29 | 2007-10-11 | Jtekt Corp | Stator for motor |
| JP2010259249A (en) * | 2009-04-27 | 2010-11-11 | Mitsubishi Electric Corp | Rotary electric machine |
| KR101539849B1 (en) * | 2013-09-23 | 2015-07-28 | 뉴모텍(주) | A Laminated Core for Motor having Structure Compatible with Insulation Coating |
-
1993
- 1993-11-10 JP JP28119993A patent/JPH07135745A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002058211A1 (en) * | 2001-01-20 | 2002-07-25 | Robert Bosch Gmbh | Stator for electrical machines and method for producing the same |
| KR100449469B1 (en) * | 2001-03-15 | 2004-09-18 | 미쓰비시덴키 가부시키가이샤 | Stator for rotary machine and method of manufacturing the stator |
| EP1249920A2 (en) * | 2001-04-09 | 2002-10-16 | Kabushiki Kaisha Moric | Stator for rotary electric machine |
| EP1249920A3 (en) * | 2001-04-09 | 2004-07-14 | Kabushiki Kaisha Moric | Stator for rotary electric machine |
| JP2003009433A (en) * | 2001-06-22 | 2003-01-10 | Hitachi Ltd | Rotary electric machine |
| FR2847084A1 (en) * | 2002-11-13 | 2004-05-14 | Gerard Koehler | Sheet metal for magnetic circuit of a turning rotating dynamo electric machine, has variable reluctivity, cross flow and Vernier effect, where sheet metal can be stacked in direction of displacement on rolled strip of uniform width |
| WO2005101612A1 (en) * | 2004-04-12 | 2005-10-27 | Mitsubishi Denki Kabushiki Kaisha | Stator of dynamo-electric machine |
| JP2006304594A (en) * | 2005-04-22 | 2006-11-02 | Isa Innovation Sa | Grooved part of electric motor |
| JP2007267522A (en) * | 2006-03-29 | 2007-10-11 | Jtekt Corp | Stator for motor |
| JP2010259249A (en) * | 2009-04-27 | 2010-11-11 | Mitsubishi Electric Corp | Rotary electric machine |
| KR101539849B1 (en) * | 2013-09-23 | 2015-07-28 | 뉴모텍(주) | A Laminated Core for Motor having Structure Compatible with Insulation Coating |
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