WO1986002789A1 - Method of manufacturing windings for synchronous motors - Google Patents

Method of manufacturing windings for synchronous motors Download PDF

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Publication number
WO1986002789A1
WO1986002789A1 PCT/JP1985/000608 JP8500608W WO8602789A1 WO 1986002789 A1 WO1986002789 A1 WO 1986002789A1 JP 8500608 W JP8500608 W JP 8500608W WO 8602789 A1 WO8602789 A1 WO 8602789A1
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WIPO (PCT)
Prior art keywords
winding
windings
synchronous motor
stator
disc type
Prior art date
Application number
PCT/JP1985/000608
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French (fr)
Japanese (ja)
Inventor
Shigeaki Oyama
Original Assignee
Fanuc Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fanuc Ltd filed Critical Fanuc Ltd
Publication of WO1986002789A1 publication Critical patent/WO1986002789A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H02K15/0442—Loop windings
    • H02K15/045—Form wound coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos

Definitions

  • the present invention relates to a method for manufacturing a winding of a disk type synchronous motor having a permanent magnet.
  • This type of disk type synchronous motor has a disk-shaped stator element having windings and a disk-shaped rotor element having permanent magnets arranged alternately in the axial direction. .
  • Such a synchronous motor generally has the advantage that a large torque can be obtained with a small size, and is useful as an AC servomotor.
  • one solution is to increase the winding density of the stator element having windings and reduce the thickness as much as possible. For this purpose, it is necessary that the windings be formed with a high density in a plane.
  • a coil group of a ring-shaped pattern of orange is formed by photolithography. It is formed on the stator surface by notching.
  • a commonly used conductor winding is an enamelled wire with a round cross section-in this case the volume occupied by the winding is about 50% of the total volume formed over the winding gap. Only a certain density can be obtained. Also, when manufacturing conductor windings of a predetermined pattern by pressing, scraps are punched out to form patterns, but in press working, the grooves remaining after the punched scraps are removed. The minimum width is required to be about the thickness of the material plate. That is, when the thickness is 0.5 TM, a groove having a width of 0.5 ira or more is required. Therefore, there is a limit to the density of the winding that can be obtained even in the case of press working. To increase the density of the winding, the groove is made even smaller, for example, a groove of about 0.05 to 0.1 It is required that Disclosure of the invention
  • a plurality of disk-shaped stator elements having spirally formed windings are installed in the axial direction at intervals and have permanent magnets.
  • the thickness is reduced and the width is expanded in the horizontal direction. Lateral expansion reduces the volume of voids in the pattern and increases the volume occupied by windings. As a result, it is possible to obtain a conductor winding having a high conductor density with a flat shape, and to obtain a compact, high-torque synchronous motor.
  • FIG. 1 is a sectional view of a synchronous motor according to an embodiment of the present invention
  • FIG. 2 is a plan view of the stator element of FIG. 1,
  • Fig. 3 is a cross-sectional view of the copper wire after preforming.
  • FIG. 4 is a cross-sectional view of the winding of FIG. 3 after pressing.
  • 1 is a rotating shaft of a synchronous motor
  • 2 is a disk-shaped rotor element fixed to the rotating shaft 1 to form a rotor
  • 3 is a disk-shaped element forming a stator.
  • Reference numeral 4 denotes a housing to which the stator element 3 is attached
  • reference numeral 5 denotes an end plate.
  • Stator The elements 3 are arranged at intervals in the axial direction, and the rotor elements 2 face the stator elements 3 and are arranged in a non-contact manner between the adjacent stator elements 3.
  • An armature winding 6 is mounted on the surface of the stator element 3 as shown in FIG.
  • the windings 6 are arranged radially from the center of the stator element (only 3 mm is shown in FIG. 2 for simplicity), and each winding 6 has a predetermined spiral shape. It is formed according to. In this type of synchronous motor, the radially extending portion 6a of each winding is important.
  • Each port element 2 is provided with a permanent magnet (not shown) corresponding to the position of the winding of the stator element 3, and the permanent magnet i. Is done. 'By passing a current through the winding 6 in this magnetic field, the rotor element 2 is rotated with respect to the stator element 3.
  • each radial portion 6a of each winding 6 traverses the magnetic field, and accordingly, the higher the density of at least the radial portion 6a, the greater the generated motor torque.
  • the outer end of each winding is connected to the power supply, and the inner end is connected to the back winding.
  • each winding 6 is manufactured by the following method. First, a copper wire coated with nickel is prepared, and the copper wire is bent into a shape very similar to a predetermined spiral shape as shown in FIG. 2, for example. Shape) At this time, each portion 6a of the copper wire 6 is substantially coplanar as shown in FIG. 3, and has an original diameter D and a distance t between adjacent components. Next, this is deformed in the thickness direction indicated by arrow F in FIG. 4 by applying pressure by a press having a flat opposing surface.
  • the thickness decreases from D to D 'and the gap decreases from t to'.
  • the winding 6 deformed two-dimensionally is fixed to the stator element 3 base material.
  • the stator element 3 substrate can be made of plastic and the windings 6 are glued to such a plastic substrate.
  • a protective layer is formed by covering the surface of the winding 6 with an adhesive layer.
  • the windings formed in this way have the same conductivity in Fig. 3 and Fig. 4, but the one in Fig. 4 has a higher density per unit thickness. I understand. Therefore, in the obtained stator element 3, a high-density winding structure having a small total thickness is formed.
  • the present invention is further applicable to the case where the preforming step is press working.
  • a copper plate is prepared and a pattern having a shape very close to the spiral shape shown in FIG. 2 is punched (preforming).
  • the winding component has a rectangular cross section instead of the round cross section in FIG.
  • a gap t is generated by the punched scrap.
  • the gap t is as thick as required for the punching press.
  • the prepress-formed product having such a gap is then pressed two-dimensionally by a press and deformed as shown in FIG. As a result, if the thickness is reduced Increased conductor density

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

A disc type synchronous motor is provided with disc type stator elements (3) and disc type rotor elements (2). Each stator element (3) has planar spiral windings (6), and permanent magnets are formed on the portions of each rotor element which correspond to these windings. Each winding (6) is produced by preforming a cross-sectionally circular copper wire to a predetermined spiral pattern, and then pressing the resultant product. This enables a winding having a small thickness (D') and short intervals (t') to be obtained.

Description

明 細 書 同期モータの卷線製造方法 技術分野  Description Method for manufacturing windings of synchronous motors
本発明は永久磁石を有するディ スク型同期モータの卷線製 造方法に関する。 背景技術  The present invention relates to a method for manufacturing a winding of a disk type synchronous motor having a permanent magnet. Background art
永久磁石材料の改良とともに、 永久磁石を有するディ スク 型同期モータの利点が注目されてきている。 このタイ プのデ イスク型.同期モータは、 卷線を有するディ スク状のステータ エレメ ン ト と永久磁石を有するディ スク状のロータエレメ ン ト とを軸線方向に交互に配置してなるものである。 このよう な同期モ一タは一般に小さな寸法で大きな トルクを得ること ができる利点があり、 交流サーボモータとして有用である。 このよう な同期モータの利点をさ らに改善するためには、 巻 線を有するステータエレメ ン トの巻線密度を高めてその厚さ をできるだけ薄くすることが一つの解決手段であり、 このた めには卷線が平面的に密度を高く形成される必要がある。 こ のような問題点を解決するために、 応用機械工学 1983年 5月 号に説明されている小型のフラ ッ トサーボモータでは、 ォレ ンジの輪切状のパター ンのコ イ ル群がフォ トエ ッチングによ り ステータ表面に形成されている。  With the improvement of permanent magnet materials, the advantages of disk-type synchronous motors with permanent magnets are attracting attention. This type of disk type synchronous motor has a disk-shaped stator element having windings and a disk-shaped rotor element having permanent magnets arranged alternately in the axial direction. . Such a synchronous motor generally has the advantage that a large torque can be obtained with a small size, and is useful as an AC servomotor. In order to further improve the advantages of such a synchronous motor, one solution is to increase the winding density of the stator element having windings and reduce the thickness as much as possible. For this purpose, it is necessary that the windings be formed with a high density in a plane. In order to solve such a problem, in a small flat servomotor described in the May 1983 issue of Applied Mechanical Engineering, a coil group of a ring-shaped pattern of orange is formed by photolithography. It is formed on the stator surface by notching.
上述したディ スク型同期モータを交流サーボモータとして ダイ レク ト ドライ ブ方式で使用する場合、 被駆勤物によって は大きな出力 トルクを必要とし、 そのために巻線に大きな電 流を流すことが必要となる。 上述したフォ トエッチングによ り形成された巻線では流すこ とのできる電流に限界があり、 このために巻線材料としては相対的に太い銅線を使用する必 要がある。 或いは銅線の代りに銅板から所定のパターン形伏 の巻線をプレス成形することも行われる。 When the above-mentioned disk-type synchronous motor is used as the AC servomotor in the direct drive mode, Requires a large output torque, which requires a large current to flow through the windings. There is a limit to the current that can be passed through the winding formed by the photo-etching described above, and it is necessary to use a relatively thick copper wire as the winding material. Alternatively, instead of a copper wire, a winding having a predetermined pattern shape is press-formed from a copper plate.
通常使用される導体巻線は丸い断面積のェナメル線であり - この場合には巻線の占有する体積が巻線の輪隔を覆って形成 される全体積に対して約 5 0 %程度となる密度しか得ること ができない。 又、 プレス加工にて所定のパターンの導体巻線 を製作する場合、 パター ン形成のためにスクラ ップを打抜く ことになるが、 プレス加工では打抜かれたスクラ 'yプの後に 残る溝の幅が最小でも材料板の厚さ程度あることが要求され る。 即ち、 板厚が 0. 5™の場合には 0. 5 ira以上の幅の溝が必 要になる。 従って、 プレス加工の場合にも得られる巻線の密 度に限界があり、 巻線の密度を高めるためにはさ らに溝を小 さ く し、 例えば 0. 05〜 0. 1 程度の溝にすることが要求され る。 発明の開示  A commonly used conductor winding is an enamelled wire with a round cross section-in this case the volume occupied by the winding is about 50% of the total volume formed over the winding gap. Only a certain density can be obtained. Also, when manufacturing conductor windings of a predetermined pattern by pressing, scraps are punched out to form patterns, but in press working, the grooves remaining after the punched scraps are removed. The minimum width is required to be about the thickness of the material plate. That is, when the thickness is 0.5 ™, a groove having a width of 0.5 ira or more is required. Therefore, there is a limit to the density of the winding that can be obtained even in the case of press working. To increase the density of the winding, the groove is made even smaller, for example, a groove of about 0.05 to 0.1 It is required that Disclosure of the invention
上記問題点を解決するために、 本発明により、 渦巻状に形 成された巻線を有する複数個のディ スク状のステータエレメ ン トを間隔をあけて軸線方向に設置し、 永久磁石を有する回 転可能なディ スク状のロータエレメ ン トを前記ディ スク間に 挟んで配置した同期モータの巻線製造方法であって、 巻線材 料を予め定められた渦巻状のパター ンに予成形し、 次に予成 形された巻線材料を厚さ方向にプレスする、 ことを特徴とす る同期モータの巻線製造方法が提供される。 In order to solve the above problems, according to the present invention, a plurality of disk-shaped stator elements having spirally formed windings are installed in the axial direction at intervals and have permanent magnets. A method of manufacturing a winding of a synchronous motor, comprising a rotatable disk-shaped rotor element sandwiched between said disks, comprising: Wherein the material is preformed into a predetermined spiral pattern, and then the preformed winding material is pressed in the thickness direction. You.
予め定められた渦巻状のパター ンに予成形された巻線材料 を厚さ方向にブレスすることによって、 厚さが低下する とと もに横方向に拡張する。 横方向の拡張によって、 パター ン内 の空所の体積が低下し、 卷線の占める体積が増加する。 それ によって、 平面状で導体密度の高い導体卷線を得ることがで き、 コ ンパク トで高トルクの同期モータを得るこ とができる < 図面の簡単な説明  By pre-winding the winding material preformed into a predetermined spiral pattern in the thickness direction, the thickness is reduced and the width is expanded in the horizontal direction. Lateral expansion reduces the volume of voids in the pattern and increases the volume occupied by windings. As a result, it is possible to obtain a conductor winding having a high conductor density with a flat shape, and to obtain a compact, high-torque synchronous motor.
以下本発明を図面を参照して詳細に説明する。 図面におい て、 第 1図は本発明の実施例の同期モー,タの断面図、  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of a synchronous motor according to an embodiment of the present invention;
第 2図は第 1図.のステ—タエ レメ ン トの平面図、  FIG. 2 is a plan view of the stator element of FIG. 1,
第 3図は銅線からなる卷線の予成形後の断面図、  Fig. 3 is a cross-sectional view of the copper wire after preforming.
第 4図は第' 3図の巻線のプレス後の断面図である。 発明を実施するための最良の形態  FIG. 4 is a cross-sectional view of the winding of FIG. 3 after pressing. BEST MODE FOR CARRYING OUT THE INVENTION
第 1図及び第 2図において、 1 は同期モータの回転軸、 2 は回転軸 1 に固着されてロータを形成するディ スク状のロ ー タエ レメ ン ト、 3 はステータを形成するディ スク状のステー タエ レメ ン ト、 4 はステータエレメ ン ト 3を取付けたハウジ ング、 5 はエ ン ドプレー トである。 この例においては、 ロー タエ レメ ン ト 2 は 3個、 ステータエ レメ ン ト 3 は 4偭あるが これらの個数は種々に設計され得るものである。 ステータエ レメ ン ト 3 は軸線方向に間隔をあけて配置され、 ロータエレ メ ン ト 2 はステータエ レメ ン ト 3 と対面し隣接するステータ エ レメ ン ト 3 の間に非接触状に配置される。 In FIGS. 1 and 2, 1 is a rotating shaft of a synchronous motor, 2 is a disk-shaped rotor element fixed to the rotating shaft 1 to form a rotor, and 3 is a disk-shaped element forming a stator. Reference numeral 4 denotes a housing to which the stator element 3 is attached, and reference numeral 5 denotes an end plate. In this example, there are three rotor elements 2 and four stator elements 3, but these numbers can be variously designed. Stator The elements 3 are arranged at intervals in the axial direction, and the rotor elements 2 face the stator elements 3 and are arranged in a non-contact manner between the adjacent stator elements 3.
ステータエレメ ン ト 3 の表面には第 2図に示されるように 電機子巻線 6が取付けられる。 巻線 6 はステータエレメ ン ト の中心から放射状に配置され （第 2図では簡明化のために 3 偭のみ示されている） 、 各卷線 6が予め定められた渦巻状の ノ、'ターンに従って形成されている。 このタイ プの同期モータ では各巻線の放射方向に延びる部分 6 aが重要である。 各口 ータエ レメ ン ト 2 にはステータエ レメ ン ト 3 の巻線の位置に 対応して永久磁石 （図示せず） が取付けられており、 その永 久磁石 i.こよりモータ軸線方向の磁界が形成される。 'この磁界 中で巻線 6 に電流を流すこ とにより、 ロータエ レメ ン ト 2が ステータエレメ ン ト 3 に対して回転せしめられる。 このとき に、 各巻線 6 の各放射方向の部分 6 aが磁界を横切り、 従つ て、 少く とも放射方向の部分 6 a の密度が高いほど生起され るモータの トルクは大き く なる。 各卷線の^巻外端が電源装 置に接続され、 内端は裏側の巻線に接続される。  An armature winding 6 is mounted on the surface of the stator element 3 as shown in FIG. The windings 6 are arranged radially from the center of the stator element (only 3 mm is shown in FIG. 2 for simplicity), and each winding 6 has a predetermined spiral shape. It is formed according to. In this type of synchronous motor, the radially extending portion 6a of each winding is important. Each port element 2 is provided with a permanent magnet (not shown) corresponding to the position of the winding of the stator element 3, and the permanent magnet i. Is done. 'By passing a current through the winding 6 in this magnetic field, the rotor element 2 is rotated with respect to the stator element 3. At this time, each radial portion 6a of each winding 6 traverses the magnetic field, and accordingly, the higher the density of at least the radial portion 6a, the greater the generated motor torque. The outer end of each winding is connected to the power supply, and the inner end is connected to the back winding.
モータの トルクを高め且つモータ全体寸法を小さ く するた めには、 巻線 6を舍むステータヱ レメ ン ト 3 の厚さができる だけ小さいことが重要であ 、 このために各卷線は二段重ね にならないように平面的に形成されており、 さ らに、 各巻線 6 は次の方法で製造されている。 先ず、 ヱナメ ル塗布の銅線 を準備し、 この銅線を例えば第 2図に示すような予め定めら れた渦卷状の形状に極く類似した形状に曲げ加工する （予成 形） 。 このときに、 銅線 6 の各部分 6 a は第 3図に示される ようにほぼ同一平面上にあって本来の直径 D、 隣接成分間の 距離 t を有している。 次に、 これを平坦な対向表面を有する プレスにて圧力をかけて、 第 4図の矢印 Fで示す厚さ方向に 変形せしめる。 その結果、 第 3図と第 4図を比較すれば分か るように、 厚さが Dから D ' に低下するとともに間隙が t か ら ' に低下している。 最後に、 第 4図に示すように平面的 に変形せしめられた巻線 6をステータエ レメ ン ト 3基材に固 着させる。 ステータエ レメ ン ト 3基材はプラスチ ッ クにより 製造されることができ、 卷線 6 はそのようなプラスチック基 材に接着される。 好ま しくは、 接着剤層により巻線 6 の表面 を覆って保護層とする。 このようにして形成され'た巻線の導 電能力は第 3図のものと第 4図のものとで等しいが、 第 4図 のものが単位厚さ当りでは高密度になっていることが分る。 従って、 得られたステータエ レメ ン ト 3では、 全厚が小さ く 高密度の巻線構造が形成されていることになる。 In order to increase the motor torque and reduce the overall size of the motor, it is important that the thickness of the stator element 3 containing the windings 6 is as small as possible. It is formed planarly so as not to be stacked, and each winding 6 is manufactured by the following method. First, a copper wire coated with nickel is prepared, and the copper wire is bent into a shape very similar to a predetermined spiral shape as shown in FIG. 2, for example. Shape) At this time, each portion 6a of the copper wire 6 is substantially coplanar as shown in FIG. 3, and has an original diameter D and a distance t between adjacent components. Next, this is deformed in the thickness direction indicated by arrow F in FIG. 4 by applying pressure by a press having a flat opposing surface. As a result, as can be seen by comparing FIGS. 3 and 4, the thickness decreases from D to D 'and the gap decreases from t to'. Finally, as shown in FIG. 4, the winding 6 deformed two-dimensionally is fixed to the stator element 3 base material. The stator element 3 substrate can be made of plastic and the windings 6 are glued to such a plastic substrate. Preferably, a protective layer is formed by covering the surface of the winding 6 with an adhesive layer. The windings formed in this way have the same conductivity in Fig. 3 and Fig. 4, but the one in Fig. 4 has a higher density per unit thickness. I understand. Therefore, in the obtained stator element 3, a high-density winding structure having a small total thickness is formed.
本発明はさらに、 予成形行程がプレス加工の場合にも適用 可能である。 この場合には銅板を準備して、 第 2図に示され る渦巻形状に極く近い形状のパター ンを打抜く こ とになる (予成形） 。 この場合、 巻線成分は第 3図の丸断面の代りに 矩形状断面になる。 そして、 打抜かれたスク ラ ップにより間 隙 t が生成される。 間隙 t は前述したように打抜プレスに必 須の扳厚程度はある。 このよう な間隙をもつ予プレス成形品 が、 次いでプレスにて平面的に押圧され、 第 4図に示される ように変形せしめられる。 その結果、 厚さが低减されるとと もに導体密度が増大する The present invention is further applicable to the case where the preforming step is press working. In this case, a copper plate is prepared and a pattern having a shape very close to the spiral shape shown in FIG. 2 is punched (preforming). In this case, the winding component has a rectangular cross section instead of the round cross section in FIG. Then, a gap t is generated by the punched scrap. As described above, the gap t is as thick as required for the punching press. The prepress-formed product having such a gap is then pressed two-dimensionally by a press and deformed as shown in FIG. As a result, if the thickness is reduced Increased conductor density

Claims

請 求 の 範 囲 渦巻状に形成された巻線を有する複数個のデイ スク状のス テータエレメ ン トを間隙をあけて軸線方向に設置し、 永久磁 石を有する回転可能なデ ィ ス ク状のロータエ レメ ン トを前記 ディ ス ク間に挟んで配置した同期モータ の卷線製造方法であ つて、 巻線林料を予め定められた渦巻状のパター ンに予成形 し、 次に予成形された卷線材料を厚さ方向にプレスする、 こ とを特徴とする同期モータの巻線製造方法。 Scope of Claim A plurality of disk-shaped stator elements with spirally formed windings are installed in the axial direction with a gap, and are rotatable disks with permanent magnets A method for manufacturing a winding of a synchronous motor, wherein said rotor element is interposed between said discs, wherein a pre-formed spiral forest material is formed into a predetermined spiral pattern, and then pre-formed. A method for manufacturing a winding of a synchronous motor, comprising pressing the wound winding material in a thickness direction.
PCT/JP1985/000608 1984-11-01 1985-11-01 Method of manufacturing windings for synchronous motors WO1986002789A1 (en)

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JP59228893A JPH0628497B2 (en) 1984-11-01 1984-11-01 Method for manufacturing winding of synchronous motor
JP59/228893 1984-11-01

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WO1986002789A1 true WO1986002789A1 (en) 1986-05-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930690A1 (en) * 2008-04-29 2009-10-30 Julien Gillonnier Ironless spiral coil integrated electrical machine e.g. rotary type electrical machine, for bicycle, has movable parts or fixed part coupled to actuator when machine serves as generator to produce alternating current at terminals
EP3462579A1 (en) * 2017-09-29 2019-04-03 Suman Corporation Modular power generation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728550A (en) * 1980-07-24 1982-02-16 Matsushita Electric Works Ltd Manufacture of rotor for flat motor
JPS6059946A (en) * 1983-09-12 1985-04-06 Mitsubishi Electric Corp Manufacture of coil of flat motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139059A (en) * 1981-01-30 1981-10-30 Matsushita Electric Works Ltd Manufacture of coreless armature

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728550A (en) * 1980-07-24 1982-02-16 Matsushita Electric Works Ltd Manufacture of rotor for flat motor
JPS6059946A (en) * 1983-09-12 1985-04-06 Mitsubishi Electric Corp Manufacture of coil of flat motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930690A1 (en) * 2008-04-29 2009-10-30 Julien Gillonnier Ironless spiral coil integrated electrical machine e.g. rotary type electrical machine, for bicycle, has movable parts or fixed part coupled to actuator when machine serves as generator to produce alternating current at terminals
EP3462579A1 (en) * 2017-09-29 2019-04-03 Suman Corporation Modular power generation device
EP3462578A1 (en) * 2017-09-29 2019-04-03 Suman Corporation Modular power generation device
EP3462577A1 (en) * 2017-09-29 2019-04-03 Suman Corporation Modular motor structure

Also Published As

Publication number Publication date
JPS61109441A (en) 1986-05-27
JPH0628497B2 (en) 1994-04-13

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