JP2009278839A - Stator for dynamo-electric machine - Google Patents

Stator for dynamo-electric machine Download PDF

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JP2009278839A
JP2009278839A JP2008130284A JP2008130284A JP2009278839A JP 2009278839 A JP2009278839 A JP 2009278839A JP 2008130284 A JP2008130284 A JP 2008130284A JP 2008130284 A JP2008130284 A JP 2008130284A JP 2009278839 A JP2009278839 A JP 2009278839A
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winding
coil
stator
winding bobbin
electrical machine
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JP4875662B2 (en
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Keigo Kishimoto
桂吾 岸本
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a winding bobbin being capable of winding with a plurality of coil wire diameters by one kind of winding bobbin and generating no winding disturbance by surely fixing the places of coils. <P>SOLUTION: A dynamo-electric machine has a stator 5 with a yoke annularly arranged around a central axis and a tooth projected from the yoke to the central-axis side in the radial direction, the winding bobbin 3 consisting of an insulator is disposed around the tooth in the dynamo-electric machine, and the dynamo-electric machine has coils 4 wound on the winding bobbin 3. In the dynamo-electric machine, projections consisting of ribs 13a, which are crushed by the winding tensions of the coils to fix the winding, are formed to the winding bobbin 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は中心軸の回りに環状に配置されたヨークと前記ヨークから径方向中心軸側に突出したティースを備えたステータを有し、前記ティースの周囲には絶縁体からなる巻線ボビンが配設され、前記巻線ボビンに巻線されたコイルを有する回転電機の固定子に係るものであり、特にその巻線ボビンの構造に関するものである。   The present invention has a stator provided with a yoke arranged annularly around a central axis and teeth projecting radially outward from the yoke, and a winding bobbin made of an insulator is arranged around the teeth. The present invention relates to a stator of a rotating electrical machine having a coil wound around the winding bobbin, and particularly relates to the structure of the winding bobbin.

回転電機の巻線ボビンに係る従来装置としては、特開２００２−２８４４４６号、特開２００６−６７７７８号、及び特開２００７−２６７４９２号にて開示されている。
前記各公開公報に記載されたものでは何れにおいても、コイルの巻乱れを防止する目的としてコイルの位置決めを行なうための係止リブが巻線ボビンに配設されている。この係止リブの形状及び間隔はコイルの線径に応じて配設されている。 Japanese Patent Application Laid-Open No. 2002-284446, Japanese Patent Application Laid-Open No. 2006-67778, and Japanese Patent Application Laid-Open No. 2007-267492 disclose conventional devices related to a winding bobbin of a rotating electrical machine.
In any of the publications described in the above-mentioned publications, a locking rib for positioning the coil is disposed on the winding bobbin for the purpose of preventing coil winding disturbance. The shape and interval of the locking ribs are arranged according to the wire diameter of the coil.

特開２００２−２８４４４６号（第３頁、図９）JP 2002-284446 (3rd page, FIG. 9) 特開２００６−６７７７８号（第１４頁、図４）JP 2006-67778 A (page 14, FIG. 4) 特開２００７−２６７４９２号（第６頁、図１）JP 2007-267492 (6th page, FIG. 1)

以上のように構成された巻線ボビンの構造においては、１種の巻線ボビンで複数のコイル線径に対応できないため、コイル線径毎に巻線ボビンを製作する必要があり、またコイル線径の違う製品を巻線時には巻線ボビン入れ替えることが必要になるなど、金型費の増大及び生産性の悪化が問題であった。
また、巻線ボビン、コイルの寸法公差バラツキにより、コイルは巻線ボビンに任意の位置に確実に係止されることは困難で、巻乱れが発生する問題点がある。 In the structure of the winding bobbin configured as described above, it is necessary to manufacture a winding bobbin for each coil wire diameter because one type of winding bobbin cannot cope with a plurality of coil wire diameters. Increased mold costs and deteriorated productivity were problems, such as the need to replace the winding bobbin when winding products with different diameters.
Further, due to dimensional tolerance variations of the winding bobbin and the coil, it is difficult to securely lock the coil at an arbitrary position on the winding bobbin, which causes a problem of winding disturbance.

この発明では、以上のような問題を解決するためになされたもので、１種の巻線ボビンで、複数のコイル線径を巻き線可能とし、且つコイルの位置を確実に係止することで巻乱れの起こらない巻線ボビン形状を提供することを目的とする。   In this invention, it was made in order to solve the above problems, and it is possible to wind a plurality of coil wire diameters with one type of winding bobbin and to securely lock the position of the coil. An object of the present invention is to provide a winding bobbin shape in which no winding disturbance occurs.

中心軸の回りに環状に配置されたヨークと前記ヨークから径方向中心軸側に突出したティースを備えたステータを有し、前記ティースの周囲には絶縁体からなる巻線ボビンが配設され、前記巻線ボビンに巻線されたコイルを有する回転電機の固定子において、前記巻線ボビンは、コイルの巻線テンションにより潰れて巻線を係止する突起物を備えるようにした。   A stator having a yoke annularly arranged around the central axis and teeth projecting from the yoke toward the radial central axis, and a winding bobbin made of an insulator is disposed around the teeth; In a stator of a rotating electrical machine having a coil wound around the winding bobbin, the winding bobbin includes a protrusion that is crushed by the winding tension of the coil to lock the winding.

この発明によれば、コイルの巻線を確実に係止できるので、巻乱れを防止することができ、製品の品質向上が図れる。
また、この発明によれば、１種の巻線ボビンで、複数のコイル線径を巻き線可能とすることができ、金型コストの削減が図れる。さらに、コイル線径の異なる生産時の巻線ボビン入れ替え不要となることによる生産性の向上が図れる。 According to the present invention, the winding of the coil can be reliably locked, so that the winding disturbance can be prevented and the quality of the product can be improved.
Further, according to the present invention, a plurality of coil wire diameters can be wound with one kind of winding bobbin, and the die cost can be reduced. Furthermore, productivity can be improved by eliminating the need to replace the winding bobbin during production with different coil wire diameters.

この発明の実施の形態を図に基づいて説明する。
実施の形態１．
図１は、本発明を適用するブラシレスモータの一実施例の断面図、図２は巻線状態図、図３は巻線ボビンの形状を示す図である。
図１において、ブラシレスモータ１は、ステータ５とロータ６を備えている。フレーム２は有底筒形状をしておりフレーム２の内周に巻線ボビン３及び巻線ボビン３に巻線されたコイル４が配設されたステータ５が圧入等で固定され、ステータ５の内周面と所定のギャップを介してロータ６が配設されている。
ロータ６は、シャフト７に接着等で固定されたマグネット８を有しており、フレーム２に設けられたベアリングケース部２ａに保持されるベアリング９及びハウジング１０に設けられたベアリングケース部１０ａに保持されるベアリング１１によって回転自在に支持されている。 Embodiments of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a sectional view of an embodiment of a brushless motor to which the present invention is applied, FIG. 2 is a winding state diagram, and FIG. 3 is a diagram showing the shape of a winding bobbin.
In FIG. 1, the brushless motor 1 includes a stator 5 and a rotor 6. The frame 2 has a bottomed cylindrical shape, and a stator 5 having a winding bobbin 3 and a coil 4 wound around the winding bobbin 3 disposed on the inner periphery of the frame 2 is fixed by press-fitting or the like. The rotor 6 is disposed through a predetermined gap with the inner peripheral surface.
The rotor 6 has a magnet 8 fixed to the shaft 7 by adhesion or the like, and is held by a bearing 9 held by a bearing case portion 2 a provided on the frame 2 and a bearing case portion 10 a provided by the housing 10. The bearing 11 is rotatably supported.

図２は、巻線状態図であって、図２（ａ）は巻線を横方向から見た図、図２（ｂ）は図２（ａ）のＡ−Ａ断面図を示している。
ステータ５のヨークから径方向中心軸側に突出したティース１２の周囲には絶縁体からなる巻線ボビン３が配設され、巻線ボビン３にはコイル４が所定の位置に巻線されている。 2A and 2B are winding state diagrams, in which FIG. 2A is a view of the winding as viewed from the lateral direction, and FIG. 2B is a cross-sectional view taken along line AA of FIG.
A winding bobbin 3 made of an insulator is disposed around the teeth 12 projecting from the yoke of the stator 5 toward the radial center axis, and the coil 4 is wound around the winding bobbin 3 at a predetermined position. .

図３は、実施の形態１の巻線ボビン３を示す図であり、図３（ａ）は横方向から見た図、図３（ｂ）は図３（ａ）のＡ−Ａ断面図、図３（ｃ）は上面から見た図を示している。巻線ボビン３はコイル４の巻線方向と直行する方向にコイル内周の当接部全体に一体成形され連続した形状の突起物であるリブ１３を備えている。
リブ１３は巻線テンションで潰れるようにやわらかく形成されている。 3A and 3B are diagrams showing the winding bobbin 3 according to the first embodiment, in which FIG. 3A is a view seen from the lateral direction, and FIG. 3B is a cross-sectional view taken along line AA in FIG. FIG. 3C shows a view from above. The winding bobbin 3 includes a rib 13 which is a protrusion having a continuous shape integrally formed with the entire contact portion of the inner periphery of the coil in a direction perpendicular to the winding direction of the coil 4.
The rib 13 is softly formed so as to be crushed by the winding tension.

実施の形態１ではこのように構成されているので、巻線ボビン３にコイル４が巻線されるとき、コイル４の巻線テンションによって、リブ１３がコイル４の形にならうように変形する。この状態を図４に示している。リブ１３は巻線テンションでつぶれるようにやわらかく形成されているので、コイルの第１層目はコイルの線の外形に近いように変形して、リブ１３ａのようになる。このため、第１層目のコイル４は変形したリブ１３ａの形状によって任意の位置に確実に係止される。第１層目が確実に係止されるので、第２層目以降も安定して巻線することが可能となり、巻乱れを防止し品質を向上させることができる。   Since the first embodiment is configured as described above, when the coil 4 is wound around the winding bobbin 3, the rib 13 is deformed so as to follow the shape of the coil 4 due to the winding tension of the coil 4. . This state is shown in FIG. Since the rib 13 is formed so as to be crushed by the winding tension, the first layer of the coil is deformed so as to be close to the outer shape of the coil wire, and becomes a rib 13a. For this reason, the coil 4 of the 1st layer is reliably latched in arbitrary positions with the shape of the deformed rib 13a. Since the first layer is reliably locked, it is possible to stably wind the second layer and the subsequent layers, preventing winding disturbance and improving the quality.

また、別の効果として、リブ１３は自在に変形することが出来るので、コイル４の線径が異なる場合においても上記と同様の効果により巻乱れを防止することができる。従来のように線径に合わせた係止部を形成するものでは、コイルの線径が異なる巻き線をする場合には、その都度線径に合致した巻線ボビンをセットしなければならなかったが、この実施の形態１のものでは、１種の巻線ボビンで複数のコイル線径に対応することが可能である。このため、コイル線径の異なる生産時の巻線ボビンの入れ替え作業が不要となり、金型コストの削減及び生産性の向上の効果をもたらすことが出来る。   As another effect, since the rib 13 can be freely deformed, even when the wire diameter of the coil 4 is different, the turbulence can be prevented by the same effect as described above. In the case of forming a locking portion matching the wire diameter as in the past, when winding with different coil wire diameters, it was necessary to set a winding bobbin that matched the wire diameter each time However, in the first embodiment, it is possible to cope with a plurality of coil wire diameters with one type of winding bobbin. This eliminates the need to replace the winding bobbin at the time of production with different coil wire diameters, and can bring about the effects of reducing the mold cost and improving the productivity.

実施の形態２．
図５は、実施の形態２の巻線ボビン３を示す図であり、図５（ａ）は横方向から見た図、図５（ｂ）は図５（ａ）のＡ−Ａ断面図、図５（ｃ）は上面から見た図を示している。この実施の形態２では、リブ１３をコイル内周の当接部の一部に備えている。
実施の形態１では、リブ１３をコイル内周の当接部全体に配設したが、この実施の形態２のようにリブ１３をコイル内周の当接部の一部に備える構成としても実施の形態１とほぼ同様の効果を得ることが出来る。 Embodiment 2. FIG.
5A and 5B are diagrams showing the winding bobbin 3 according to the second embodiment, in which FIG. 5A is a diagram seen from the lateral direction, FIG. 5B is a cross-sectional view taken along line AA in FIG. FIG. 5C shows a view from above. In the second embodiment, the rib 13 is provided at a part of the contact portion on the inner periphery of the coil.
In the first embodiment, the rib 13 is disposed on the entire contact portion on the inner circumference of the coil. However, as in the second embodiment, the rib 13 is provided on a part of the contact portion on the inner circumference of the coil. It is possible to obtain substantially the same effect as the first embodiment.

実施の形態３．
図６は、実施の形態３の巻線ボビン３を示す図であり、図６（ａ）は横方向から見た図、図６（ｂ）は図６（ａ）のＡ−Ａ断面図、図６（ｃ）は上面から見た図を示している。この実施の形態３では、リブ１４は巻線方向と平行する向きに形成されている。
巻線ボビン３の金型構成上、実施の形態１に示すようなコイル４の巻線向きと直行するリブを形成することが困難な場合、リブは巻線方向と平行する向きに配設しても、上述とほぼ同様の効果を得ることが出来る。 Embodiment 3 FIG.
6A and 6B are diagrams showing the winding bobbin 3 according to the third embodiment, where FIG. 6A is a view seen from the lateral direction, FIG. 6B is a cross-sectional view taken along line AA in FIG. FIG. 6C shows a view from above. In the third embodiment, the rib 14 is formed in a direction parallel to the winding direction.
When it is difficult to form a rib perpendicular to the winding direction of the coil 4 as shown in the first embodiment due to the mold configuration of the winding bobbin 3, the rib is arranged in a direction parallel to the winding direction. However, substantially the same effect as described above can be obtained.

このように巻線方向と平行する向きにリブを形成する場合には、巻線位置の安定化を図るためリブのピッチはコイル巻線径の１／４以下とすることが望ましい。なお、図６はこの発明の実施の形態３の概念を説明する図であり、図２のコイル巻線径との関係はかならずしも最適な記載になっていない。
また、図６ではコイル４の巻線向きと平行する向き、且つコイル内周の当接部全体にリブ１４を配設した図を示しているが、コイル内周の当接部全体に限らず一部に配設してもほぼ同様の効果を得ることが出来る。
さらに、リブ１４の方向はコイル４の巻線向きと直行、平行に限らず斜め方向に配設してもほぼ同様の効果を得ることが出来る。 When the ribs are formed in the direction parallel to the winding direction as described above, the pitch of the ribs is desirably ¼ or less of the coil winding diameter in order to stabilize the winding position. FIG. 6 is a diagram for explaining the concept of Embodiment 3 of the present invention, and the relationship with the coil winding diameter in FIG. 2 is not necessarily an optimal description.
Further, FIG. 6 shows a view in which the ribs 14 are arranged in the direction parallel to the winding direction of the coil 4 and in the entire contact portion of the inner periphery of the coil. Almost the same effect can be obtained even if it is partially arranged.
Furthermore, the direction of the rib 14 is not limited to being perpendicular to or parallel to the winding direction of the coil 4, and substantially the same effect can be obtained even if it is disposed in an oblique direction.

実施の形態４．
図７は、実施の形態４の巻線ボビン３の形態を示す図であり、図７（ａ）は横方向から見た図、図７（ｂ）は図７（ａ）のＡ−Ａ断面図、図７（ｃ）は上面から見た図を示している。この実施の形態４では、リブ１３の代わりに略円錐形状の突起物１５をコイル内周の当接部のほぼ全体に配設している。この略円錐形状の突起物１５は、巻線のテンションにより容易に変形して潰れるように形成されている。
巻線時のコイル傷の保護などの理由で、巻線テンションを低く抑える必要がある場合には、巻線ボビン３のリブを潰す効果が得られにくいが、リブを連続した帯状ではなく、実施の形態４のように略円錐形状の突起物とすることで、低い巻線テンションで突起物１５を潰すことが出来、実施の形態１とほぼ同様の効果を得ることが出来る。 Embodiment 4 FIG.
7A and 7B are views showing the form of the winding bobbin 3 according to the fourth embodiment. FIG. 7A is a view seen from the lateral direction, and FIG. 7B is a cross-sectional view taken along line AA in FIG. FIG. 7 and FIG. 7C show a view from above. In the fourth embodiment, instead of the rib 13, a substantially conical projection 15 is disposed on almost the entire contact portion on the inner periphery of the coil. The substantially conical protrusions 15 are formed so as to be easily deformed and crushed by the tension of the winding.
When it is necessary to keep the winding tension low for reasons such as protection of coil scratches during winding, it is difficult to obtain the effect of crushing the ribs of the winding bobbin 3, but the rib is not a continuous belt. By using a substantially conical protrusion as in the fourth embodiment, the protrusion 15 can be crushed with a low winding tension, and the same effect as in the first embodiment can be obtained.

このように略円錐形状の突起物１５を形成する場合には、巻線位置の安定化を図るため突起物のピッチはコイル巻線径の１／４以下とすることが望ましい。なお、図７はこの発明の実施の形態４の概念を説明する図であり、図２のコイル巻線径との関係はかならずしも最適な記載になっていない。
また、図７ではコイル内周の当接部の全体に略円錐状の突起物１５を配設した図を示しているが、コイル内周の当接部全体に限らず一部に配設してもほぼ同様の効果を得ることが出来る。 When the substantially conical protrusion 15 is formed in this way, it is desirable that the pitch of the protrusion is ¼ or less of the coil winding diameter in order to stabilize the winding position. FIG. 7 is a diagram for explaining the concept of Embodiment 4 of the present invention, and the relationship with the coil winding diameter in FIG. 2 is not necessarily an optimal description.
Further, FIG. 7 shows a diagram in which the substantially conical protrusions 15 are arranged on the entire contact portion on the inner circumference of the coil. However, the projection is not limited to the entire contact portion on the inner circumference of the coil. However, almost the same effect can be obtained.

実施の形態１から４まで構造について説明してきたが、巻線ボビン３の材料については、以下のものが適している。
この発明の巻線ボビンは回転電機に使用されるため耐絶縁性・耐熱性を備え、且つ巻線テンションによりリブを潰すことが可能な高じん性を持つ材質が良く、ポリプロピレン、ポリアミド、ポリエステル、ポリブチレンテレフタレートが適している。 Although the structure has been described in the first to fourth embodiments, the following materials are suitable for the material of the winding bobbin 3.
The winding bobbin of the present invention is used for a rotating electric machine, and therefore has good insulation and heat resistance, and has a high toughness material capable of crushing ribs by winding tension. Polypropylene, polyamide, polyester, Polybutylene terephthalate is suitable.

この発明を適用するブラシレスモータの一実施例の断面図である。It is sectional drawing of one Example of the brushless motor to which this invention is applied. 巻線状態を説明する図で、図２（ａ）は横方向から見た図、図２（ｂ）は図２（ａ）のＡ−Ａ断面図である。FIG. 2A is a diagram illustrating a winding state, FIG. 2A is a diagram viewed from the lateral direction, and FIG. この発明の実施の形態１の巻線ボビンを示す図で、図３（ａ）は横方向から見た図、図３（ｂ）は図３（ａ）のＡ−Ａ断面図、図３（ｃ）は上面から見た図である。FIGS. 3A and 3B are views showing the winding bobbin according to the first embodiment of the present invention, FIG. 3A is a view seen from the lateral direction, FIG. c) is a view from above. 巻線テンションでリブが潰された状態を説明する図である。It is a figure explaining the state where the rib was crushed by winding tension. この発明の実施の形態２の巻線ボビンを示す図で、図５（ａ）は横方向から見た図、図５（ｂ）は図５（ａ）のＡ−Ａ断面図、図５（ｃ）は上面から見た図である。5A and 5B are views showing a winding bobbin according to Embodiment 2 of the present invention, in which FIG. 5A is a view seen from the lateral direction, FIG. 5B is a cross-sectional view taken along line AA in FIG. c) is a view from above. この発明の実施の形態３の巻線ボビンを示す図で、図６（ａ）は横方向から見た図、図６（ｂ）は図６（ａ）のＡ−Ａ断面図、図６（ｃ）は上面から見た図である。6A and 6B are views showing a winding bobbin according to Embodiment 3 of the present invention, in which FIG. 6A is a side view, FIG. 6B is a cross-sectional view taken along line AA in FIG. c) is a view from above. この発明の実施の形態４の巻線ボビンを示す図で、図７（ａ）は横方向から見た図、図７（ｂ）は図７（ａ）のＡ−Ａ断面図、図７（ｃ）は上面から見た図である。7A and 7B are views showing a winding bobbin according to Embodiment 4 of the present invention, in which FIG. 7A is a side view, FIG. 7B is an AA cross-sectional view of FIG. c) is a view from above.

符号の説明Explanation of symbols

１ ブラシレスモータ、２ フレーム、２ａ ベアリングケース部、３ 巻線ボビン、４ コイル、５ ステータ、６ ロータ、７ シャフト、８ マグネット、９ ベアリング、１０ ハウジング、１０ａ ベアリングケース部、１１ ベアリング、１２ ティース、１３ リブ、１３ａ 変形したリブ、１４ リブ、１５ 略円錐形状の突起物。   1 brushless motor, 2 frame, 2a bearing case, 3 winding bobbin, 4 coil, 5 stator, 6 rotor, 7 shaft, 8 magnet, 9 bearing, 10 housing, 10a bearing case, 11 bearing, 12 teeth, 13 Ribs, 13a Deformed ribs, 14 Ribs, 15 Conical protrusions.

Claims (8)

中心軸の回りに環状に配置されたヨークと前記ヨークから径方向中心軸側に突出したティースを備えたステータを有し、前記ティースの周囲には絶縁体からなる巻線ボビンが配設され、前記巻線ボビンに巻線されたコイルを有する回転電機の固定子において、前記巻線ボビンは、コイルの巻線テンションにより潰れて巻線を係止する突起物を備えたことを特徴とする回転電機の固定子。   A stator having a yoke annularly arranged around the central axis and teeth projecting from the yoke toward the radial central axis, and a winding bobbin made of an insulator is disposed around the teeth; In a stator of a rotating electrical machine having a coil wound around the winding bobbin, the winding bobbin includes a protrusion that is crushed by a winding tension of the coil to lock the winding. Electric stator. 上記突起物は、コイル内周の当接部全体に設けたことを特徴とする請求項１に記載の回転電機の固定子。   The stator of the rotating electrical machine according to claim 1, wherein the protrusion is provided on the entire contact portion of the inner periphery of the coil. 上記突起物は、コイル内周の当接部の一部に設けたことを特徴とする請求項１に記載の回転電機の固定子。   The stator of a rotating electrical machine according to claim 1, wherein the protrusion is provided at a part of a contact portion on the inner periphery of the coil. 上記突起物は連続した形状のリブであることを特徴とする請求項１から請求項３のいずれかに記載の回転電機の固定子。   The stator of a rotating electrical machine according to any one of claims 1 to 3, wherein the protrusion is a rib having a continuous shape. 上記リブは、コイルの巻線向きと直行する向きに配設されたことを特徴とする請求項４に記載の回転電機の固定子。   The stator of the rotating electrical machine according to claim 4, wherein the rib is disposed in a direction orthogonal to a winding direction of the coil. 上記リブは、コイルの巻線向きと平行する向きに配設されたことを特徴とする請求項４に記載の回転電機の固定子。   The stator of the rotating electric machine according to claim 4, wherein the rib is arranged in a direction parallel to a winding direction of the coil. 上記突起物は、略円錐形状で構成されたことを特徴とする請求項１から請求項３のいずれかに記載の回転電機の固定子。   The stator of the rotating electrical machine according to any one of claims 1 to 3, wherein the protrusion is configured in a substantially conical shape. 巻線ボビンは、ポリプロピレン、ポリアミド、ポリエステル、ポリブチレンテレフタレートのいずれかの樹脂材料からなることを特徴とする請求項１に記載の回転電機の固定子。   The stator of a rotating electrical machine according to claim 1, wherein the winding bobbin is made of a resin material of any one of polypropylene, polyamide, polyester, and polybutylene terephthalate.
JP2008130284A 2008-05-19 2008-05-19 Rotating electric machine stator Expired - Fee Related JP4875662B2 (en)

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Publication number Priority date Publication date Assignee Title
CZ305637B6 (en) * 2009-02-23 2016-01-20 Mitsubishi Electric Corporation Process for producing motor stator
CN103840576A (en) * 2012-11-27 2014-06-04 Rbc制造公司 Wire guide for use in an electric machine
US20150288238A1 (en) * 2013-01-24 2015-10-08 Dupont Teijin Advanced Papers (Japan), Ltd. Motor bobbin
US9812916B2 (en) * 2013-01-24 2017-11-07 Dupont Teijin Advanced Papers (Japan), Ltd. Motor bobbin
JP2014195345A (en) * 2013-03-28 2014-10-09 Kayaba Ind Co Ltd Motor and manufacturing method thereof
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WO2015033696A1 (en) * 2013-09-04 2015-03-12 デュポン帝人アドバンスドペーパー株式会社 Motor bobbin and method for manufacturing same
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JP2018068104A (en) * 2017-11-02 2018-04-26 デュポン帝人アドバンスドペーパー株式会社 Motor bobbin and method for manufacturing the same
WO2022052526A1 (en) * 2020-09-09 2022-03-17 温岭市九洲电机制造有限公司 Single wire winding structure of motor stator winding

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