【０００１】[0001]
【産業上の利用分野】本発明は、鉄心を有してなる回転
電機の電機子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armature for a rotary electric machine having an iron core.
【０００２】[0002]
【従来の技術】鉄心を有してなる回転電機の電機子の従
来例として、特開平２−１４６９４２号公報、特開昭６
３−１５７６５０号公報記載のものなどがある。従来の
鉄心を有してなる回転電機の電機子の上記鉄心は、ま
ず、平板の素材をプレスにより打ち抜いてコア材とする
工程と、このコア材を複数枚積層する工程の２工程から
なる。図１５は従来の回転電機の電機子の例で、中心の
軸孔１６と、放射方向の複数の突極１２と、各突極１２
の先端部に形成された部分円弧状の傘部１４とを有して
なるコア材１１を有してなる。コア材１１は、珪素鋼板
などの平板の素材をプレスにより打ち抜いたもので、コ
ア材を複数枚積層することによって鉄心１０が構成され
ている。上記傘部１４相互間には巻線用の開口部１９が
形成されている。2. Description of the Related Art As a conventional example of an armature for a rotary electric machine having an iron core, Japanese Patent Laid-Open No. 2-146942 and Japanese Patent Laid-Open No. 6-196942 are known.
There is one described in Japanese Patent Laid-Open No. 3-157650. The above-mentioned iron core of an armature of a rotary electric machine having a conventional iron core is first composed of two steps, a step of punching a flat plate material by a press to form a core material and a step of laminating a plurality of core materials. FIG. 15 shows an example of an armature of a conventional rotating electric machine, which includes a central axial hole 16, a plurality of radial salient poles 12, and each salient pole 12
And a core member 11 having a partial arcuate umbrella portion 14 formed at the tip end of the. The core material 11 is obtained by punching a flat plate material such as a silicon steel plate by a press, and the core 10 is formed by stacking a plurality of core materials. An opening 19 for winding is formed between the umbrella portions 14.
【０００３】上記コア材１１の製法の例を図１６に示
す。図１６（ａ）に示す珪素鋼板などの平板の素材１８
をプレスにより打ち抜き、図１６（ｂ）および図１５に
示すようなコア材１１を得る。FIG. 16 shows an example of a method of manufacturing the core material 11. A flat plate material 18 such as a silicon steel plate shown in FIG.
Is punched by a press to obtain a core material 11 as shown in FIGS. 16 (b) and 15.
【０００４】図１７は、上記鉄心１０を有する電機子を
用いたモータの例を示す。図１７において、カップ状の
モータケース２２の開放端には端板２４が嵌められ、モ
ータケース２２の底部中央と端板２４に嵌められた軸受
２６，２６によって回転軸２８が支承されている。回転
軸２８には、モータケース２２内部において上記コア材
１１が積層されてなる鉄心１０が嵌合固着されている。
積層された各コア材１１の突極１２の部分には巻線２０
が巻回されている。突極１２の先端の前記傘部１４は、
モータケース２２の内周側に固定された界磁マグネット
３０の内周面に所定の間隙をおいて対向している。回転
軸２８には整流子３２が取付けられ、整流子３２にはブ
ラシ３４が摺接している。周知のとおり、ブラシ３４と
整流子３２を経て巻線２０への通電が制御され、鉄心１
０、巻線２０等を有してなるロータが回転駆動される。FIG. 17 shows an example of a motor using an armature having the iron core 10. In FIG. 17, an end plate 24 is fitted to the open end of the cup-shaped motor case 22, and a rotary shaft 28 is supported by the bottom center of the motor case 22 and bearings 26, 26 fitted to the end plate 24. An iron core 10 formed by laminating the core material 11 inside the motor case 22 is fitted and fixed to the rotating shaft 28.
A winding 20 is provided on the salient pole 12 of each laminated core material 11.
Is wound. The umbrella portion 14 at the tip of the salient pole 12 is
It is opposed to the inner peripheral surface of the field magnet 30 fixed to the inner peripheral side of the motor case 22 with a predetermined gap. A commutator 32 is attached to the rotating shaft 28, and a brush 34 is in sliding contact with the commutator 32. As is well known, the energization of the winding 20 is controlled via the brush 34 and the commutator 32, and the iron core 1
A rotor having 0, windings 20 and the like is rotationally driven.
【０００５】上記巻線２０は鉄心１０から絶縁されてい
なければならない。絶縁手段は各種あるが、例えば図１
８に示すように、鉄心１０の回転軸２８方向の両端面に
コア材の平面形状とほぼ同じ形状の樹脂等でなる絶縁板
３５を重ね、絶縁板３５の上から巻線を巻回すようにし
たものがある。そして、絶縁板３５には位置決め突起３
６を形成し、この位置決め突起３６に整流子の位置決め
用切欠きを嵌めることにより、鉄心１０の各突極と整流
子との回転方向の相対位置を精度よく出すようにしたも
のもある。The winding 20 must be insulated from the iron core 10. There are various insulating means, for example, FIG.
As shown in FIG. 8, on both end surfaces of the iron core 10 in the direction of the rotating shaft 28, an insulating plate 35 made of resin or the like having a shape substantially the same as the planar shape of the core material is overlapped, and the winding is wound on the insulating plate 35. There is something I did. The insulating plate 35 has a positioning protrusion 3
6 is formed, and a notch for positioning the commutator is fitted into the positioning protrusion 36, so that the relative position in the rotational direction of each salient pole of the iron core 10 and the commutator is accurately obtained.
【０００６】[0006]
【発明が解決しようとする課題】以上説明した従来の回
転電機の電機子によれば、板状の素材を打ち抜いてコア
材を得るため、高価なプレス機械設備と金型が必要で
ある、コア材は素材を打ち抜いて得るため、磁気的な
方向性をもった素材を使用することができず、高性能の
素材を活用することができない、図１４から明らかな
とおり、コア材として打ち抜かれた部分以外の素材は不
要となり、無駄な材料部分が多い、薄いコア材を複数
枚積み上げるため、組立工程に要する時間が長い、傘
部相互間の開口部は、突極に巻線を施すためある程度大
きくする必要があるため、磁束を有効に取り込むことが
できないし、コギングが大きくなる、というような問題
を生じる。According to the armature of the conventional rotary electric machine described above, an expensive press machine facility and a die are required to punch a plate-shaped material to obtain a core material. Since the material is obtained by punching out the material, it is not possible to use a material with magnetic directionality and it is not possible to utilize a high-performance material. As is clear from FIG. 14, it was punched out as the core material. Materials other than the parts are unnecessary, there are many wasteful material parts, a long time is required for the assembly process because a plurality of thin core materials are piled up, and the openings between the umbrella parts are wound to salient poles to some extent. Since it needs to be increased, the magnetic flux cannot be effectively taken in and the cogging becomes large.
【０００７】本発明は、かかる点に鑑みてなされたもの
で、高価なプレス機械設備や金型が不要で、コアの素材
の無駄がなく、磁気的な方向性のある素材を活用して特
性を向上させることができ、組立工程が簡単であり、傘
部相互間の開口部を極めて小さくすることができる回転
電機の電機子を提供することを目的とする。The present invention has been made in view of the above point, and does not require expensive press machine equipment and molds, does not waste core materials, and utilizes characteristics that are magnetically directional. It is an object of the present invention to provide an armature for a rotary electric machine, which can improve the power consumption, the assembly process is simple, and the openings between the umbrella portions can be made extremely small.
【０００８】[0008]
【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、巻線用の開口部および突極を備えた鉄心と
突極に巻回された巻線とを有する回転電機の電機子にお
いて、鉄心は、コア材を少なくとも２枚重ねることによ
って形成し、これらコア材の重ねあわせ面は回転中心軸
を含む平面又は回転中心軸を含む平面に平行な平面内内
にあり、これらコア材の重ねあわせ部によって突極を形
成した。コア材の先端部を折り曲げることにより、周方
向に延設した傘部を形成することができる。傘部相互の
開口部は回転軸に対し傾斜させてもよい。コア材の磁化
容易軸方向を巻線による磁束発生方向と一致させてもよ
い。コア材の表面に絶縁層を設けてもよい。In order to achieve the above object, the present invention provides an electric machine of a rotary electric machine having an iron core having an opening for winding and a salient pole and a winding wound around the salient pole. In the child, the iron core is formed by stacking at least two core materials, and the overlapping surface of the core materials is in a plane including the rotation center axis or a plane parallel to the plane including the rotation center axis. Salient poles were formed by the overlapping parts of the material. By bending the tip portion of the core material, it is possible to form an umbrella portion extending in the circumferential direction. The openings of the umbrella portions may be inclined with respect to the rotation axis. The axis of easy magnetization of the core material may be aligned with the direction of magnetic flux generated by the winding. An insulating layer may be provided on the surface of the core material.
【０００９】[0009]
【作用】板状の素材を適宜の長さに切断してこれをコア
材とし、このコア材を少なくとも２枚重ねることによっ
て鉄心を得ることができる。これらコア材の重ねあわせ
部が突極となり、この突極部分に巻線を施すことによっ
て電機子を構成することができる。巻線を通電制御する
と、電機子と界磁との間に回転駆動力が発生する。コア
材の先端部を折り曲げて周方向に延設した傘部を形成す
れば、界磁からの磁束を有効に取り込むことができる。
傘部相互間の開口部を回転軸に対し傾斜させるとコギン
グが低減される。磁気的な方向性を有するコア素材を用
い、コア材の磁化容易軸方向を巻線による磁束発生方向
と一致させると、磁束密度を高くすることができる。The iron core can be obtained by cutting a plate-shaped material into an appropriate length and using this as a core material and stacking at least two core materials. The overlapping portion of these core materials serves as a salient pole, and an armature can be constructed by winding the salient pole portion. When the winding is energized, a rotational driving force is generated between the armature and the field. By bending the tip of the core material to form an umbrella portion extending in the circumferential direction, the magnetic flux from the field can be effectively taken in.
When the openings between the umbrella portions are inclined with respect to the rotation axis, cogging is reduced. The magnetic flux density can be increased by using a core material having magnetic directivity and making the easy magnetization axis direction of the core material coincide with the magnetic flux generation direction of the winding.
【００１０】[0010]
【実施例】以下、図面を参照しながら本発明にかかる回
転電機の電機子の実施例について説明する。図１におい
て、符号４０は電機子の鉄心を示す。鉄心４０は、巻線
用の開口部４８および多極着磁された図示されない界磁
に対向する突極４４を備えている。上記突極４４には巻
線５０が巻回されて回転電機の電機子を構成している。
鉄心４０は、図示の実施例ではコア材４２が３枚重ねら
れることによって形成されている。より具体的には、各
コア材４２は中心角が１２０°になるようにＶ字状に折
り曲げられ、各コア材４２が背中合せ状に重ねあわせら
れている。これらコア材４２相互の重ねあわせ面は回転
中心軸を含む平面内又は回転中心軸を含む平面に平行な
平面内にあり、各コア材４２相互の重ねあわせ部によっ
て上記突極４４が形成され、各突極４４に巻線５０が巻
回されている。各コア材４２の先端部は折り曲げられて
周方向に延設された傘部４６が形成されている。各傘部
４６相互間に上記開口部４８が形成されている。重ねあ
わせられた各コア材４２の中心部には回転軸５２が挿入
され溶接等の手段によって固定されている。Embodiments of the armature of a rotary electric machine according to the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 40 indicates an iron core of the armature. The iron core 40 is provided with a winding opening 48 and a salient pole 44 facing a field magnet (not shown) that is magnetized in multiple poles. A winding 50 is wound around the salient pole 44 to form an armature of a rotary electric machine.
The iron core 40 is formed by stacking three core members 42 in the illustrated embodiment. More specifically, each core member 42 is bent in a V shape so that the central angle is 120 °, and the core members 42 are stacked back to back. The overlapping surfaces of these core materials 42 are in a plane including the rotation center axis or in a plane parallel to the plane including the rotation center axis, and the salient poles 44 are formed by the overlapping portions of the core materials 42, A winding 50 is wound around each salient pole 44. A tip end portion of each core member 42 is bent to form an umbrella portion 46 extending in the circumferential direction. The openings 48 are formed between the umbrella portions 46. A rotating shaft 52 is inserted into the central portion of each core member 42 that is overlapped and fixed by means such as welding.
【００１１】次に、上記鉄心４０およびこれを用いた電
機子の製造方法の例を説明する。まず、図２（ａ）に示
す板素材４１を適宜の長さの長方形状に切断し、これを
所定の中心角のＶ字状になるように折り曲げ加工して図
２（ｂ）に示すようなコア材４２を得る。曲げ加工は、
素材の長手方向の中心付近の平行な２本の線に沿って行
う。上記板素材４１が例えば方向性珪素鋼板のように圧
延方向に磁化容易軸Ｃがある場合は、磁化容易軸Ｃが長
手方向になるように切断し、図２（ｂ）に示すように曲
げ加工する。次に、図２（ｃ）に示すように、曲げ加工
した３個のコア材４２を背中合せにし、平面形状がほぼ
Ｙ字状になるように重ねあわせ、溶接等の手段で一体に
結合する。図示の例ではスポット溶接５４によって結合
している。隣合ったコア材４２の互いに重なりあった部
分が突極４４となる。この突極４４は合計３個放射方向
に延びでている。Next, an example of the iron core 40 and a method of manufacturing an armature using the iron core 40 will be described. First, the plate material 41 shown in FIG. 2 (a) is cut into a rectangular shape having an appropriate length, and this is bent into a V shape having a predetermined center angle, as shown in FIG. 2 (b). The core material 42 is obtained. Bending is
This is done along two parallel lines near the center of the material in the longitudinal direction. When the plate material 41 has an easy axis of magnetization C in the rolling direction like a grain-oriented silicon steel plate, the plate material 41 is cut so that the easy axis of magnetization C is in the longitudinal direction, and is bent as shown in FIG. 2 (b). To do. Next, as shown in FIG. 2 (c), the three bent core members 42 are back-to-back, superposed so as to have a substantially Y-shaped planar shape, and integrally joined by means such as welding. In the illustrated example, they are connected by spot welding 54. The salient poles 44 are the portions of the adjacent core members 42 that overlap each other. A total of three salient poles 44 extend in the radial direction.
【００１２】次に、図２（ｄ）に示すように、３個のコ
ア材４２の中心に回転軸５２を挿入し、溶接等の手段で
固定する。上記のようにコア材４２の長手方向の中心付
近の平行な２本の線に沿って曲げ加工が行われているた
め、３個のコア材４２を背中合せに重ねあわせたとき、
中心部に空間ができる。この空間に回転軸５２を挿入し
固定する。各コア材４２の重ねあわせ面は、回転軸５２
の回転中心軸線を含む平面内にある。次に、各突極４４
の部分に巻線５０を巻回す。ここでは、各突極４４の先
端に傘部がなく、巻線空間を制限するものがないため、
巻線工程を容易に進めることができるし、巻線５０の巻
回数を多くすることができる。次に、図２（ｄ）に２点
鎖線で示すように、各コア材４４の両端部を折り曲げ加
工して周方向に延設した傘部４６を形成する。こうし
て、図１に示したような電機子が得られる。Next, as shown in FIG. 2D, the rotary shafts 52 are inserted into the centers of the three core members 42 and fixed by means such as welding. As described above, since the bending is performed along the two parallel lines near the center in the longitudinal direction of the core material 42, when the three core materials 42 are stacked back to back,
There is a space in the center. The rotary shaft 52 is inserted and fixed in this space. The superposed surface of each core member 42 has a rotary shaft 52.
Lies in a plane including the rotation center axis line of. Next, each salient pole 44
The winding 50 is wound around the part. Here, since there is no umbrella portion at the tip of each salient pole 44 and there is nothing that limits the winding space,
The winding process can be easily advanced, and the number of windings of the winding 50 can be increased. Next, as shown by a chain double-dashed line in FIG. 2D, both ends of each core member 44 are bent to form the umbrella portion 46 extending in the circumferential direction. In this way, the armature as shown in FIG. 1 is obtained.
【００１３】なお、上記製造方法の中で、回転軸５２の
固定は、巻線工程のあとまたは傘部４６を形成したあと
に行ってもよい。また、傘部４６の形成は、図２（ｂ）
に示すＶ字状に折り曲げる工程で同時に行ってもよい。
もっとも、傘部４６を形成するかどうかは任意であり、
傘部４６を形成しないこともありえる。巻線５０を巻回
す前に各コア材４２を絶縁処理することもある。In the above manufacturing method, the rotation shaft 52 may be fixed after the winding step or after the umbrella portion 46 is formed. The formation of the umbrella portion 46 is shown in FIG.
It may be performed at the same time in the step of bending into the V shape shown in FIG.
However, whether to form the umbrella portion 46 is arbitrary,
It is possible that the umbrella portion 46 is not formed. Each core member 42 may be insulated before the winding 50 is wound.
【００１４】図３、図４に示すように、コア材４２を作
る板素材４１は、その表面に絶縁層５６を設けたものに
してもよい。こうすれば、板素材４１自体が直接絶縁さ
れているため、コア材４２と巻線５０との絶縁を簡単か
つ安定に行うことができ、絶縁のための別部品が不要で
あるという利点がある。また、図４に示すように、重な
ったコア材４２相互が絶縁層５６で絶縁されるため、渦
電流損がなくなるという利点がある。さらに、素材の状
態または半製品の状態でも素材の表面と空気との接触が
絶縁層で遮断されるため、錆の発生がなく、長期の保存
が可能になるという利点もある。As shown in FIGS. 3 and 4, the plate material 41 from which the core material 42 is made may have an insulating layer 56 on its surface. By doing so, since the plate material 41 itself is directly insulated, the core material 42 and the winding wire 50 can be easily and stably insulated, and there is an advantage that a separate component for insulation is unnecessary. . Further, as shown in FIG. 4, since the overlapping core materials 42 are insulated from each other by the insulating layer 56, there is an advantage that eddy current loss is eliminated. Further, even in the state of the raw material or the state of the semi-finished product, the contact between the surface of the raw material and the air is blocked by the insulating layer, so that there is an advantage that rust does not occur and storage can be performed for a long time.
【００１５】次に、以上説明した電機子を用いたモータ
の例について説明する。図５、図６において、カップ状
のモータケース５８の開放端には端板６０が固定されて
いる。モータケース５８の底部中央と端板６０の中央に
は軸受６２，６２が嵌められ、軸受６２，６２によって
前記電機子の回転軸５２が回転自在に支承されている。
回転軸５２には、前述のように３個のコア材でなる鉄心
４０が一体に取付けられており、モータケース５８内部
において鉄心４０が回転軸５２とともに回転することが
できる。鉄心４０の突極４４の部分には巻線５０が巻回
されている。突極４４の先端の前記傘部４６は、モータ
ケース５８の内周側に固定されたリング状の界磁マグネ
ット６４の内周面と所定の間隙をおいて対向している。
回転軸５２には整流子６８が取付けられ、整流子６８に
はブラシ７０が摺接している。ブラシ７０と整流子６８
を経て巻線５０への通電が制御されることにより、鉄心
４０、巻線５０等を有してなる電機子が回転駆動され
る。Next, an example of a motor using the armature described above will be described. In FIGS. 5 and 6, an end plate 60 is fixed to the open end of the cup-shaped motor case 58. Bearings 62, 62 are fitted in the center of the bottom of the motor case 58 and the center of the end plate 60, and the rotating shaft 52 of the armature is rotatably supported by the bearings 62, 62.
As described above, the iron core 40 made of three core materials is integrally attached to the rotating shaft 52, and the iron core 40 can rotate together with the rotating shaft 52 inside the motor case 58. A winding 50 is wound around the salient pole portion 44 of the iron core 40. The umbrella portion 46 at the tip of the salient pole 44 faces the inner peripheral surface of the ring-shaped field magnet 64 fixed to the inner peripheral side of the motor case 58 with a predetermined gap.
A commutator 68 is attached to the rotating shaft 52, and a brush 70 is in sliding contact with the commutator 68. Brush 70 and commutator 68
By controlling the energization to the winding wire 50 via the, the armature including the iron core 40, the winding wire 50, etc. is rotationally driven.
【００１６】以上説明した回転電機の電機子の実施例に
よれば、鉄心４０を、複数のコア材４２を重ねることに
よって形成し、各コア材４２の重ねあわせ面が回転中心
軸を含む平面内又は回転中心軸を含む平面に平行な平面
内に存在するようにし、各コア材４２の重ねあわせ部に
よって突極を形成したため、板状のコア素材をそのまま
適宜の長さに切断し、これを折り曲げ加工してコア材４
２とすることが可能になり、加工機械は小型の切断機お
よび曲げ加工機があれば足り、高価なプレス機械や金型
を用いる必要がなくなった。これにより、少量他品種生
産に迅速に対応することができ、また、コア素材は打ち
抜くのではなく、適宜の長さに切断して用いるため、材
料の無駄がほとんどなくなる。According to the embodiment of the armature of the rotating electric machine described above, the iron core 40 is formed by stacking a plurality of core members 42, and the overlapping surface of each core member 42 is in a plane including the rotation center axis. Alternatively, since the salient poles are formed by the overlapping portions of the core members 42 so as to exist in a plane parallel to the plane including the rotation center axis, the plate-shaped core material is cut as it is into an appropriate length and Bending process and core material 4
It is possible to reduce the number to 2, and it is sufficient for the processing machine to have a small cutting machine and a bending machine, and it is not necessary to use an expensive press machine or die. As a result, it is possible to quickly respond to small-volume production of other types, and the core material is cut into an appropriate length and used instead of punching, so that the material is hardly wasted.
【００１７】また、従来のように打ち抜きでコア材を得
るものにあっては、素材に磁気的な方向性があると磁気
特性が周方向に不均一となるため使用することができな
かったが、上記実施例によれば、磁気的な方向性のある
方向性珪素鋼板などを活用することができ、コア材の磁
化容易軸を巻線による磁束発生方向と一致させることが
できるため、全体の磁束密度を２０％程度向上させるこ
とができ、これによって特性を向上させることができ
る。Further, in the conventional method of obtaining a core material by punching, if the material has a magnetic directional property, the magnetic characteristics become non-uniform in the circumferential direction, but it cannot be used. According to the above-mentioned embodiment, it is possible to utilize a grain-oriented silicon steel plate or the like having a magnetic orientation, and the easy axis of magnetization of the core material can be aligned with the magnetic flux generation direction of the winding, so The magnetic flux density can be improved by about 20%, and thus the characteristics can be improved.
【００１８】さらに、巻線後に突極４４の先端部を曲げ
加工して傘部４６を形成するようにすれば、傘部４６を
形成する前に巻線５０を施すことができるから、巻線作
業が極めて容易であるし、巻線空間を最大限に利用して
巻回すことができるため、巻線５０の巻回数を多くする
ことができる。また、巻線後に傘部４６を形成すること
ができるため、傘部４６相互の開口部の間隔は極限まで
小さくすることができ、もって、コギングの低減を図る
ことができるし、磁束を有効に取り込むことができるた
め効率の高い回転電機を得ることができる。Further, if the tip portion of the salient pole 44 is bent after the winding to form the umbrella portion 46, the winding 50 can be formed before the umbrella portion 46 is formed. The work is extremely easy, and since the winding space can be maximized to be wound, the number of windings of the winding 50 can be increased. In addition, since the umbrella portion 46 can be formed after the winding, the distance between the openings of the umbrella portions 46 can be made as small as possible, and thus cogging can be reduced and the magnetic flux can be effectively used. Since it can be taken in, a highly efficient rotating electrical machine can be obtained.
【００１９】次に、本発明の各種変形例について説明す
る。図７、図８は、前述のようなＶ字状に折り曲げられ
た３個のコア材４２を背中合せに重ねあわせて鉄心７２
を形成するに当り、各コア材４２の間にコア７４を介在
させて突極幅を大きくし、鉄心７２を通る磁束の増大を
図ったものである。上記コア７４はコア材４２と同様に
Ｖ字状に折り曲げにより形成されている。ただし、傘部
４６は有していない。一つのコア材４２に数枚のコア７
４を重ね、これらを背中合わせ状に重ねあわせて鉄心７
２を形成している。コア７４相互およびコア７４とコア
材４２との重ねあわせ面は回転中心軸を含む平面内にあ
る。このように構成された鉄心７２は、前記実施例にか
かる電機子の鉄心と同様に回転電機の電機子鉄心として
適用可能である。図８は上記鉄心７２を用いたモータの
例の概略を示すもので、コア７４を挾み込んでなるコア
材４２の突極４４の部分に巻線５０が巻回されている。
その他の構成は図５、図６に示すモータの例と同様であ
る。Next, various modifications of the present invention will be described. 7 and 8 show the iron core 72 in which three core members 42 bent in the V shape as described above are stacked back to back.
In forming the core, the salient pole width is increased by interposing the core 74 between the core members 42 to increase the magnetic flux passing through the iron core 72. Like the core material 42, the core 74 is formed by bending into a V shape. However, the umbrella portion 46 is not included. Several cores 7 in one core material 42
4 are piled up, and these are piled up in a back-to-back shape and iron core 7
Forming 2. The overlapping surfaces of the cores 74 and the core 74 and the core member 42 are in a plane including the rotation center axis. The iron core 72 configured as described above can be applied as an armature iron core of a rotating electric machine, like the iron core of the armature according to the above-described embodiment. FIG. 8 shows an outline of an example of a motor using the iron core 72, in which a winding 50 is wound around a salient pole 44 of a core material 42 having a core 74 sandwiched therein.
Other configurations are the same as the example of the motor shown in FIGS.
【００２０】図７、図８に示す例によれば、各コア材４
２の間にコア７４を介在させたため、突極幅が大きくな
って鉄心７２を通る磁束が増大し、出力が増大する。ま
た、コア７４はコア材４２と同様に、板状の素材を切断
し折り曲げることによって作ることができるため、磁気
的な方向性をもった板状の素材を用いることができ、こ
れによってさらに磁束の増大を図ることができる。According to the example shown in FIGS. 7 and 8, each core member 4
Since the core 74 is interposed between the two, the salient pole width increases, the magnetic flux passing through the iron core 72 increases, and the output increases. Further, like the core material 42, the core 74 can be made by cutting and bending a plate-shaped material, so that a plate-shaped material having a magnetic directional property can be used, which further increases the magnetic flux. Can be increased.
【００２１】各コア材４２の間にコアを介在させた別の
例としては、図９に示すような構成のものでもよい。図
９に示す例は、Ｖ字状に折り曲げられた複数のコア材４
２を背中合わせ状に重ねあわせて鉄心７８を形成するに
当り、各コア材４２の間に、複数のコア７６を軸方向に
積層して介在させたものである。従って、複数のコア７
６の積層面は回転中心軸線を含む平面に対して直交方向
の面となる。この例の場合も、突極幅が大きくなって鉄
心７２を通る磁束が増大し、出力が増大するという効果
があるが、各コア７６はほぼＹ字状に形成されているた
め、板材の打ち抜きによって作ることになる。しかしな
がら、コア材４２はこれまで説明した実施例と同様のも
のであるから、これまで説明した実施例と同様の作用効
果を奏する。As another example in which a core is interposed between the core members 42, a structure as shown in FIG. 9 may be used. In the example shown in FIG. 9, a plurality of core members 4 bent in a V shape are used.
When the iron cores 78 are formed by stacking the two pieces back-to-back, a plurality of cores 76 are axially stacked and interposed between the core members 42. Therefore, a plurality of cores 7
The laminated surface of 6 is a surface in the direction orthogonal to the plane including the rotation center axis. Also in the case of this example, the salient pole width is increased and the magnetic flux passing through the iron core 72 is increased, so that the output is increased. However, since each core 76 is formed in a substantially Y shape, the plate material is punched out. Will be made by However, since the core material 42 is the same as that of the above-described embodiments, the same operational effect as that of the above-described embodiments is obtained.
【００２２】本発明にかかる電機子によれば、巻線用の
開口部を、コギング低減のために回転軸に対して傾斜さ
せることも容易である。図１０はその例を示す。まず
（ａ）に示すように、板状の素材８０を所定の長さに切
断するに当たり、切断面８２を素材８０の側面に対し所
定角度傾斜させ、平行四辺形の板とする。次にこの平行
四辺形の板の長手方向中央付近の２本の線８４と両端寄
りの２本の線８６に沿って折り曲げ成形する。上記各線
８４，８６は素材８０の側面に対し直交している。図１
０（ｂ）はこのようにして折曲成形されたコア材８８を
示しており、上記線８４に沿って折り曲げられることに
よりほぼＶ字状をなし、また、線７６に沿って折り曲げ
られることにより両端部に傘部９２が形成されている。
この両端の傘部９２相互間、従って素材８０の両端の切
断面８２相互間に巻線用の開口部９４が形成されるが、
上記切断面８２は所定角度傾斜させられているため、上
記開口部９４は回転軸線に対して傾斜している。このよ
うなコア材はこれまで説明してきた実施例と同様に適宜
数が背中合せ状に重ねあわせられて鉄心が形成され、回
転電機の電機子として供せられる。According to the armature of the present invention, it is easy to incline the winding opening with respect to the rotation axis in order to reduce cogging. FIG. 10 shows an example thereof. First, as shown in (a), when cutting the plate-shaped material 80 into a predetermined length, the cutting surface 82 is inclined at a predetermined angle with respect to the side surface of the material 80 to form a parallelogram plate. Next, the parallelogram plate is bent and formed along two lines 84 near the center in the longitudinal direction and two lines 86 near both ends. The lines 84 and 86 are orthogonal to the side surface of the material 80. Figure 1
Reference numeral 0 (b) shows the core material 88 bent and formed in this way, and by being bent along the line 84, it has a substantially V shape, and by being bent along the line 76. Umbrellas 92 are formed at both ends.
An opening 94 for winding is formed between the umbrella portions 92 at both ends, and thus between the cut surfaces 82 at both ends of the material 80.
Since the cutting surface 82 is inclined at a predetermined angle, the opening 94 is inclined with respect to the rotation axis. Similar to the embodiments described so far, an appropriate number of such core materials are stacked back to back to form an iron core, and the core material is used as an armature of a rotary electric machine.
【００２３】図１０（ｂ）に示すようなコア材を用いれ
ば、開口部９４が回転軸線に対して傾斜していていわゆ
るスキューがかかっているため、コギングおよび回転む
らの低減効果がある。ちなみに、従来の電機子のよう
に、打ち抜いて形成した複数枚のコア材を軸方向に積み
上げたものにおいて開口部にスキューを設けようとする
と、一つ一つのコア材を少しずつ回転方向にずらして位
置決めしながら積み重ねる必要があり、組立および部品
加工がはなはだ面倒である。しかし、本発明にかかる電
機子によれば、板状の素材の切断と折り曲げとによっ
て、開口部にスキューを設けた電機子を容易に得ること
ができる。If a core material as shown in FIG. 10B is used, the opening 94 is inclined with respect to the rotation axis and a so-called skew is applied, so that there is an effect of reducing cogging and rotation unevenness. By the way, if you try to create a skew in the opening in a stack of multiple core materials that have been punched out and stacked in the axial direction like a conventional armature, each core material will be gradually shifted in the rotation direction. It is necessary to stack them while positioning them, and assembly and processing of parts are troublesome. However, according to the armature of the present invention, it is possible to easily obtain an armature having a skewed opening by cutting and bending a plate-shaped material.
【００２４】本発明にかかる電機子を適用すれば、整流
子の位置決め構造を容易に組み込むことができる。図１
１、図１２はその例を示す。まず図１１（ａ）に示すよ
うに、板状の素材４１を所定の長さに切断した後、また
は切断と同時に、素材４１の長手方向の一側縁部中央に
整流子の位置決め基準となる切欠９５を形成しておく。
この素材４１をこれまでの実施例と同様に折曲成形して
ほぼＶ字状のコア材４２を作り、このコア材４２を複数
個背中合せ状に重ねあわせて図１１（ｂ）に示すような
鉄心４０を作る。鉄心４２の突極４４の部分には巻線を
施す。この鉄心４０の中心部には図１２に示すように回
転軸５２を挿入し溶接等によって固定し、さらに回転軸
５２には鉄心４２の上記切欠９５の形成端側から整流子
９６を挿入し固定する。整流子９６は、絶縁体からなる
ホルダ９７と、ホルダ９７によって保持され全体として
円筒形をなす複数個の整流子片９８と、各整流子片９８
と一体でホルダの周面から外方に突出した端子１００
と、ホルダ９７に一体成形された複数個の位置決め突起
９９とを有してなる。By applying the armature according to the present invention, the commutator positioning structure can be easily incorporated. Figure 1
1 and FIG. 12 show the example. First, as shown in FIG. 11A, after the plate-shaped material 41 is cut into a predetermined length, or simultaneously with the cutting, it becomes a positioning reference of the commutator at the center of one side edge of the material 41 in the longitudinal direction. The notch 95 is formed.
This material 41 is bent and formed in the same manner as in the previous embodiments to form a substantially V-shaped core material 42, and a plurality of core materials 42 are stacked back to back as shown in FIG. 11 (b). Make the iron core 40. Winding is applied to the salient pole portion 44 of the iron core 42. As shown in FIG. 12, a rotating shaft 52 is inserted into the center of the iron core 40 and fixed by welding or the like. Further, a commutator 96 is inserted into the rotating shaft 52 from the end side where the notch 95 is formed and fixed. To do. The commutator 96 includes a holder 97 made of an insulator, a plurality of commutator pieces 98 which are held by the holder 97 and have a cylindrical shape as a whole, and each commutator piece 98.
The terminal 100 that protrudes outward from the peripheral surface of the holder integrally with
And a plurality of positioning protrusions 99 integrally formed with the holder 97.
【００２５】上記整流子９６を回転軸５２に挿入し、上
記各位置決め突起９９を鉄心４０の各切欠９５に嵌めて
整流子９６を位置決めし、この状態で適宜の手段により
鉄心４０に固定する。この実施例によれば、各位置決め
突起９９と各切欠９５とを嵌めあわせるだけで各突極と
各整流子片９８との回転方向の相対位置関係が定まるた
め、組立調整が容易である。ちなみに、図１８に示す従
来例のように鉄心１０に重ねた絶縁板３５に位置決め突
起３６を設けてこれを整流子側の位置決め凹部に嵌めあ
わせるものにあっては、鉄心１０に対する絶縁板３５の
相対位置関係を精度よく調整した上で整流子を位置決め
しなければならず、調整作業が面倒で位置精度は必ずし
もよくない。しかし、図１１、図１２に示す例によれ
ば、切欠９５と突起９９との嵌めあわせだけで相対位置
関係が決まるため、調整が極めて簡単であるし、位置精
度も良好である。The commutator 96 is inserted into the rotary shaft 52, the positioning protrusions 99 are fitted into the notches 95 of the iron core 40 to position the commutator 96, and in this state, the commutator 96 is fixed to the iron core 40 by an appropriate means. According to this embodiment, the relative positional relationship between the salient poles and the commutator pieces 98 in the rotational direction is determined only by fitting the positioning protrusions 99 and the notches 95 together, so that assembly and adjustment are easy. Incidentally, as in the conventional example shown in FIG. 18, in the case where the insulating plate 35 stacked on the iron core 10 is provided with the positioning projection 36 and fitted into the positioning recess on the commutator side, the insulating plate 35 for the iron core 10 is Since the commutator must be positioned after adjusting the relative positional relationship with high accuracy, the adjustment work is troublesome and the positional accuracy is not always good. However, according to the examples shown in FIGS. 11 and 12, the relative positional relationship is determined only by fitting the notches 95 and the projections 99, so that the adjustment is extremely simple and the positional accuracy is also good.
【００２６】図１、図２に示した実施例をさらに工夫す
れば、より優れた効果を奏する電機子を得ることができ
る。図１３、図１４に示す実施例がそれで、各コア材４
２の突極４４の先端部４４ａの軸方向の幅を、突極４４
のリブ部の幅よりも大きくしたものである。このように
して幅が拡大された突極先端部４４ａを周方向に折り曲
げることにより突極傘部４６が形成される。そのほかの
構成は図１、図２の実施例と同じであるから同じ構成部
分には同一の符号を付して詳細な説明は省略する。By further devising the embodiment shown in FIGS. 1 and 2, it is possible to obtain an armature having more excellent effects. This is the embodiment shown in FIG. 13 and FIG.
The axial width of the tip portion 44a of the salient pole 44 of the second salient pole 44 is
The width is larger than the width of the rib portion of. The salient pole cap portion 46 is formed by bending the salient pole tip portion 44a whose width is enlarged in this manner in the circumferential direction. Since other configurations are the same as those of the embodiment shown in FIGS. 1 and 2, the same components are designated by the same reference numerals and detailed description thereof will be omitted.
【００２７】図１３、図１４に示す実施例によれば、各
コア材４２の突極先端部４４ａの軸方向の幅を、突極４
４のリブ部の幅よりも大きくしたことにより、突極傘部
４６の面積が拡大されるため、界磁磁束を有効に取り込
むことができ、効率の高い回転電機を得ることができ
る。ちなみに、従来の回転電機の電機子のように、打ち
抜きによって作った複数枚のコア材を軸方向に積み上げ
たものにおいてより大きくの界磁磁束を取り込もうとす
ると、別部品として作った集磁ヨークを積層コアの両端
に積み重ねる必要があり、部品加工と組立が極めて面倒
である。しかし、図１３、図１４に示す実施例によれ
ば、板状の素材の切断と折り曲げとによって突極傘部４
６に集磁構造をもった電機子を容易に得ることができ
る。According to the embodiment shown in FIGS. 13 and 14, the salient pole 4 has a width in the axial direction of the salient pole tip portion 44a of each core member 42.
Since the area of the salient pole head portion 46 is expanded by making the width of the rib portion 4 larger than that of the rib portion 4, the field magnetic flux can be effectively taken in, and a highly efficient rotating electric machine can be obtained. By the way, if you try to capture a larger field magnetic flux in a stack of multiple core materials made by punching in the axial direction like the armature of a conventional rotating electrical machine, you will need to use a magnetism collecting yoke made as a separate component. Since it is necessary to stack on both ends of the laminated core, processing and assembling parts are extremely troublesome. However, according to the embodiment shown in FIGS. 13 and 14, the salient pole umbrella portion 4 is formed by cutting and bending the plate-shaped material.
An armature having a magnetism collecting structure in 6 can be easily obtained.
【００２８】なお、本発明はモータに限らず発電機にも
適用可能である。また、電機子回転型に限らず、界磁回
転型の回転電機にも適用可能であり、かつ、アウタロー
タ型にもインナーロータ型にも適用可能である。突極数
は特に限定されるものではなく、例えば２極でもよい。
２極の場合は、コア材はほぼ直線状のものが２個重ね合
わされることになる。シリンダモータやアウタロータモ
ータなどの場合には回転軸はない場合もある。The present invention can be applied not only to a motor but also to a generator. Further, the invention is applicable not only to the armature rotating type but also to a field rotating type rotating electric machine, and to the outer rotor type and the inner rotor type. The number of salient poles is not particularly limited, and may be two poles, for example.
In the case of two poles, two substantially linear core materials are stacked. In the case of a cylinder motor or outer rotor motor, there may be no rotary shaft.
【００２９】[0029]
【発明の効果】本発明によれば、鉄心を、複数のコア材
を重ねることによって形成し、これらコア材の重ねあわ
せ面が回転中心軸を含む平面内又は回転中心軸を含む平
面に平行な平面内に存在するようにし、これらコア材の
重ねあわせ部によって突極を形成したため、板状のコア
素材をそのまま適宜の長さに切断し、これを折り曲げ加
工してコア材とすることが可能になり、加工機械は小型
の切断機および曲げ加工機があれば足り、高価なプレス
機械や金型を用いる必要がなくなった。これにより、少
量他品種生産に迅速に対応することができ、また、コア
素材は打ち抜くのではなく、適宜の長さに切断して用い
るため、材料の無駄がほとんどなくなる。According to the present invention, an iron core is formed by stacking a plurality of core materials, and the overlapping surfaces of these core materials are parallel to the plane including the rotation center axis or the plane including the rotation center axis. Since it lies on a plane and the salient poles are formed by the overlapping parts of these core materials, it is possible to cut the plate-shaped core material as it is into an appropriate length and bend it to form the core material. Therefore, the processing machine only needs to have a small cutting machine and a bending machine, and it is not necessary to use an expensive press machine or a die. As a result, it is possible to quickly respond to small-volume production of other types, and the core material is cut into an appropriate length and used instead of punching, so that the material is hardly wasted.
【００３０】また、巻線後に突極の先端部を曲げ加工し
て傘部を形成することもできるため、傘部を形成する前
に巻線を施すことができ、巻線作業が極めて容易である
し、巻線空間を最大限に利用して巻回すことができるた
め、巻線の巻回数を多くすることができる。さらに、巻
線後に傘部を形成すれば、傘部相互間の巻線用開口部の
間隔は極限まで小さくすることができるから、コギング
の低減を図ることができるし、磁束を有効に取り込むこ
とができるため効率の高い回転電機を得ることができ
る。Further, since the tip portion of the salient pole can be bent to form the umbrella portion after the winding, the winding can be performed before forming the umbrella portion, and the winding work is extremely easy. However, since the winding space can be maximized to be wound, the number of windings of the winding can be increased. Further, if the umbrella portion is formed after winding, the spacing between the winding openings between the umbrella portions can be made as small as possible, so that cogging can be reduced and the magnetic flux can be effectively taken in. Therefore, a highly efficient rotating electric machine can be obtained.
【００３１】本発明によれば、板状の素材を折り曲げ加
工することによりコア材を形成することができるため、
請求項４記載の発明のように、傘部相互間の巻線用開口
部を回転軸に対して傾斜させることも容易であり、これ
によってコギングと回転むらの少ない回転電機を得るこ
とができる。According to the present invention, since the core material can be formed by bending a plate-shaped material,
As in the invention described in claim 4, it is also easy to incline the winding openings between the umbrella portions with respect to the rotation axis, whereby a rotating electric machine with less cogging and uneven rotation can be obtained.
【００３２】本発明によれば、磁気的な方向性のある方
向性珪素鋼板などを活用することができるため、請求項
５記載の発明のように、コア材の磁化容易軸を巻線によ
る磁束発生方向と一致させることができ、これによって
全体の磁束密度を向上させ、特性を向上させることがで
きる。According to the present invention, it is possible to utilize a grain-oriented silicon steel sheet or the like having magnetic orientation. Therefore, as in the fifth aspect of the invention, the axis of easy magnetization of the core material is the magnetic flux generated by the winding. It is possible to match the direction of generation, thereby improving the overall magnetic flux density and improving the characteristics.
【００３３】請求項６記載の発明のように、コア材の表
面に絶縁層を設ければ、コア材と巻線との絶縁を簡単か
つ安定に行うことができるし、絶縁のための別部品が不
要であるという利点がある。また、重ねあわせられたコ
ア材相互が絶縁層で絶縁されるため、渦電流損がなくな
るという利点がある。さらに、素材の状態または半製品
の状態でも素材の表面と空気との接触が絶縁層で遮断さ
れるため、錆の発生がなく、長期の保存が可能になると
いう利点もある。When an insulating layer is provided on the surface of the core material as in the sixth aspect of the present invention, the insulation between the core material and the winding can be performed easily and stably, and a separate component for insulation is provided. Has the advantage that it is unnecessary. Further, since the core materials that are overlapped with each other are insulated by the insulating layer, there is an advantage that eddy current loss is eliminated. Further, even in the state of the raw material or the state of the semi-finished product, the contact between the surface of the raw material and the air is blocked by the insulating layer, so that there is an advantage that rust does not occur and storage can be performed for a long time.
【００３４】請求項７記載の発明のように、コア材の先
端部の軸方向の幅を、リブ部の幅よりも大きくすれば、
突極傘部の面積が拡大されるため、界磁磁束を有効に取
り込むことができ、効率の高い回転電機を得ることがで
きるし、このような集磁構造をもった電機子を、板状の
素材の切断と折り曲げとによって容易に得ることができ
る。If the axial width of the tip end portion of the core material is made larger than the width of the rib portion as in the invention of claim 7,
Since the area of the salient pole head portion is expanded, the field magnetic flux can be effectively taken in, and a highly efficient rotating electric machine can be obtained, and an armature having such a magnetism collecting structure can be formed into a plate shape. It can be easily obtained by cutting and bending the material.
【図１】本発明にかかる回転電機の電機子の実施例を示
す斜視図。FIG. 1 is a perspective view showing an embodiment of an armature of a rotary electric machine according to the present invention.
【図２】同上電機子の製造方法の例を順に示す斜視図。FIG. 2 is a perspective view showing an example of a method of manufacturing the armature in the same order.
【図３】本発明に適用可能な素材の例を示す斜視図。FIG. 3 is a perspective view showing an example of a material applicable to the present invention.
【図４】同上素材を用いた電機子の突極部分の断面図。FIG. 4 is a sectional view of a salient pole portion of an armature using the same material.
【図５】上記電機子を用いた回転電機の例を示す横断面
図。FIG. 5 is a cross-sectional view showing an example of a rotating electric machine using the armature.
【図６】同上回転電機の縦断面図。FIG. 6 is a vertical sectional view of the same rotating electric machine.
【図７】本発明にかかる回転電機の電機子の別の実施例
を示す平面図。FIG. 7 is a plan view showing another embodiment of the armature of the rotary electric machine according to the present invention.
【図８】同上電機子を用いた回転電機の例を示す横断面
図。FIG. 8 is a transverse cross-sectional view showing an example of a rotating electric machine using the same armature.
【図９】本発明にかかる回転電機の電機子のさらに別の
実施例を示す平面図。FIG. 9 is a plan view showing still another embodiment of the armature of the rotary electric machine according to the present invention.
【図１０】本発明に適用可能な別のコア材の製法の例を
示す斜視図。FIG. 10 is a perspective view showing an example of another core material manufacturing method applicable to the present invention.
【図１１】本発明に適用可能なさらに別のコア材の製法
の例を示す斜視図。FIG. 11 is a perspective view showing an example of still another method of manufacturing a core material applicable to the present invention.
【図１２】同上コア材を用いた本発明のさらに別の実施
例を示す分解斜視図。FIG. 12 is an exploded perspective view showing still another embodiment of the present invention using the same core material.
【図１３】本発明にかかる回転電機の電機子のさらに別
の実施例を示す斜視図。FIG. 13 is a perspective view showing still another embodiment of the armature of the rotary electric machine according to the present invention.
【図１４】同上実施例に巻線を施した例を示す斜視図。FIG. 14 is a perspective view showing an example in which a winding is applied to the above embodiment.
【図１５】従来の回転電機の電機子に用いられる鉄心の
例を示す斜視図。FIG. 15 is a perspective view showing an example of an iron core used in an armature of a conventional rotating electric machine.
【図１６】同上鉄心の製法の例を示す平面図および斜視
図。FIG. 16 is a plan view and a perspective view showing an example of a method for manufacturing the iron core of the same.
【図１７】従来の回転電機の例を示す縦断面図。FIG. 17 is a vertical sectional view showing an example of a conventional rotating electric machine.
【図１８】従来の回転電機の電機子に用いられる鉄心の
別の例を示す斜視図。FIG. 18 is a perspective view showing another example of an iron core used for an armature of a conventional rotating electric machine.
４０ 鉄心 ４２ コア材 ４４ 突極 ４６ 傘部 ４８ 開口部 ５０ 巻線 ５２ 回転軸 ５６ 絶縁層 ７２ 鉄心 ７８ 鉄心 Ｃ 磁化容易軸 40 iron core 42 core material 44 salient pole 46 umbrella portion 48 opening 50 winding 52 rotating shaft 56 insulating layer 72 iron core 78 iron core C easy axis of magnetization
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 政幸 長野県駒ヶ根市赤穂14−888番地 株式会 社三協精機製作所駒ヶ根工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayuki Ishikawa 14-888 Ako, Komagane City, Nagano Sankyo Seiki Seisakusho Komagane Factory
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22086992AJPH0654471A (en) | 1992-07-28 | 1992-07-28 | Rotating machine armature |
| CN93109369ACN1050239C (en) | 1992-07-28 | 1993-07-28 | Armature of electric rotating machinery |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22086992AJPH0654471A (en) | 1992-07-28 | 1992-07-28 | Rotating machine armature |
| Publication Number | Publication Date |
|---|---|
| JPH0654471Atrue JPH0654471A (en) | 1994-02-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22086992APendingJPH0654471A (en) | 1992-07-28 | 1992-07-28 | Rotating machine armature |
| Country | Link |
|---|---|
| JP (1) | JPH0654471A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015019746A1 (en)* | 2013-08-05 | 2015-02-12 | 株式会社デンソー | Stator core |
| WO2015053070A1 (en)* | 2013-10-08 | 2015-04-16 | 株式会社デンソー | Stator core for dynamo-electric machine |
| CN105612678A (en)* | 2013-10-08 | 2016-05-25 | 株式会社电装 | Iron core of rotating electric machine |
| US9929631B2 (en)* | 2013-02-20 | 2018-03-27 | Sanyo Denki Co., Ltd. | Interior magnet linear induction motor |
| DE102021130180A1 (en) | 2021-11-18 | 2023-05-25 | Zf Active Safety Gmbh | Electric motor, drive arrangement and electromechanical braking device |
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|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9929631B2 (en)* | 2013-02-20 | 2018-03-27 | Sanyo Denki Co., Ltd. | Interior magnet linear induction motor |
| WO2015019746A1 (en)* | 2013-08-05 | 2015-02-12 | 株式会社デンソー | Stator core |
| JP2015033254A (en)* | 2013-08-05 | 2015-02-16 | 株式会社デンソー | Stator core |
| WO2015053070A1 (en)* | 2013-10-08 | 2015-04-16 | 株式会社デンソー | Stator core for dynamo-electric machine |
| CN105612678A (en)* | 2013-10-08 | 2016-05-25 | 株式会社电装 | Iron core of rotating electric machine |
| DE102021130180A1 (en) | 2021-11-18 | 2023-05-25 | Zf Active Safety Gmbh | Electric motor, drive arrangement and electromechanical braking device |
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