JP2007330059A - Rotating electric machine - Google Patents

Rotating electric machine Download PDF

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JP2007330059A
JP2007330059A JP2006160391A JP2006160391A JP2007330059A JP 2007330059 A JP2007330059 A JP 2007330059A JP 2006160391 A JP2006160391 A JP 2006160391A JP 2006160391 A JP2006160391 A JP 2006160391A JP 2007330059 A JP2007330059 A JP 2007330059A
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coil
winding
arc
radius
stator
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JP4134201B2 (en
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Kengo Fujimoto
憲悟 藤本
Kazuhisa Takashima
和久 高島
Satoru Akutsu
悟 阿久津
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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 provide a winding structure where disorder of winding is eliminated and winding can smoothly be performed, even if a wire size of a coil is large and rigidity of the coil is large. <P>SOLUTION: A winding start coil insertion groove 4a, a winding end coil insertion groove 4b, and a center projection part 2a are arranged in a coil bobbin 2. Arcuate corners 5a and 5b are formed in the projection 2a. A curvature radius Ra of an arc in the corner 5a on the winding start of the coil 3 is formed to be larger than that Rb of an arc in the corner 5b on a winding end of the coil 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、連結ステータが用いられる回転電機に関するものであり、特に、連結ステータコアにおける巻線構造に関するものである。   The present invention relates to a rotating electrical machine in which a connection stator is used, and more particularly to a winding structure in a connection stator core.

従来の回転電機のステータコアにおける巻線構造として、コイルボビンに巻き始め用のコイル挿入溝、巻き終わり用のコイル挿入溝及び中央凸部を設け、巻き終わり用のコイル挿入溝側に対応するコア側面に沿って巻き始めるとともに、巻き始め用のコイル挿入溝に対応するコア側面に沿って巻かれてきたコイルの巻き終わりを、凸部に巻かれるようにして巻き終わり用のコイル挿入溝に入り込み固定したものがあった（特許文献１参照）。   As a winding structure in a stator core of a conventional rotating electric machine, a coil bobbin is provided with a coil insertion groove for winding start, a coil insertion groove for winding end, and a central convex portion on the side surface of the core corresponding to the coil insertion groove side for winding end. The winding end of the coil wound along the side surface of the core corresponding to the coil insertion groove for starting winding is inserted into the coil insertion groove for winding end and fixed so as to be wound around the convex portion. There was a thing (refer patent document 1).

特許第３４９８１２９号Japanese Patent No. 3498129

従来の固定子のコイル巻線構造は以上のように構成されており、コイルの巻始めと巻終わりを巻回させるための中央凸部の２つの角部が同じ円弧形状となっている。そしてコイルの線径に比べて角部の円弧の曲率半径が小さい場合、コイルの剛性が大きいため、コイルが中央凸部の角部に沿って円滑に巻回できなくなり、コイルが内径側にふくらみ、巻線が乱れてしまうことがあった。   The conventional coil winding structure of the stator is configured as described above, and the two corners of the central convex part for winding the winding start and the winding end of the coil have the same arc shape. If the radius of curvature of the arc at the corner is smaller than the wire diameter of the coil, the coil is so stiff that the coil cannot be smoothly wound along the corner of the central convex portion, and the coil bulges toward the inner diameter side. The windings were sometimes disturbed.

この不具合を改善するためには、２つの角部の円弧形状の曲率を大きくすればよいが、中央凸部の周方向における長さの制約がある以上、円弧形状の曲率の大きさにも制約がある。そして２つの角部の円弧形状における曲率をともに大きくすると、凸部の強度が低下してしまい、巻線時に発生するコイルの張力により中央凸部が破損してしまうのである。   In order to improve this problem, it is only necessary to increase the curvature of the arc shape at the two corners. However, as long as there is a restriction on the length of the central protrusion in the circumferential direction, the size of the curvature of the arc shape is also limited. There is. If both the curvatures in the arc shape of the two corners are increased, the strength of the convex portion is lowered, and the central convex portion is damaged by the tension of the coil generated during winding.

この発明は、上記のような問題点を解決するためになされたものであり、コイルの線径が大きく、コイルの剛性が大きい場合でも巻線の乱れをなくし、円滑に巻線を行うことのできる巻線構造を提供することを目的とする。   The present invention has been made to solve the above-described problems, and even when the coil diameter is large and the coil rigidity is large, the winding is prevented from being disturbed and smoothly wound. An object is to provide a winding structure that can be used.

この発明に係る回転電機は、コアに取り付けられたコイルボビンにコイルを巻回させるとともに、コアを複数個帯状に連結させた連結ステータを有するものであって、コイルボビンに巻き始め用のコイル挿入溝、巻き終わり用のコイル挿入溝及び中央凸部を設け、凸部の角部を円弧状に形成するとともに、コイルの巻き始め側の角部における円弧の曲率半径がコイルの巻き終わり側の角部における円弧の曲率半径よりも大きくなるように形成したものである。   A rotating electrical machine according to the present invention includes a connecting stator in which a coil is wound around a coil bobbin attached to a core and a plurality of cores are connected in a strip shape, and a coil insertion groove for starting winding around the coil bobbin, The coil insertion groove for winding end and the central convex portion are provided, and the corner portion of the convex portion is formed in an arc shape, and the radius of curvature of the arc at the corner portion on the coil winding start side is the corner portion on the coil winding end side. It is formed so as to be larger than the radius of curvature of the arc.

この発明に係る回転電機によれば、コアに取り付けられたコイルボビンにコイルを巻回させるとともに、コアを複数個帯状に連結させた連結ステータを有するものであって、コイルボビンに巻き始め用のコイル挿入溝、巻き終わり用のコイル挿入溝及び中央凸部を設け、凸部の角部を円弧状に形成するとともに、コイルの巻き始め側の角部における円弧の曲率半径がコイルの巻き終わり側の角部における円弧の曲率半径よりも大きくなるように形成したので、コイルの線径が大きく、コイルの剛性が大きい場合でも巻線の乱れをなくし、円滑に巻線を行うことができる。   According to the rotating electrical machine of the present invention, a coil is wound around a coil bobbin attached to a core, and the coil bobbin has a connecting stator in which a plurality of cores are connected in a strip shape, and a coil is inserted into the coil bobbin for starting winding. A groove, a coil insertion groove for winding end and a central convex portion are provided, and the corner portion of the convex portion is formed in an arc shape, and the radius of curvature of the arc at the corner portion on the coil winding start side is the corner on the coil winding end side. Since it is formed so as to be larger than the radius of curvature of the arc in the portion, even when the coil has a large wire diameter and the coil has a high rigidity, the winding is not disturbed and the winding can be performed smoothly.

実施の形態１．
図１は連結ステータが用いられる一般的な回転電機を示す側面断面図であり、図において、フレーム１３内部にはステータ１１が固定されるとともに、ステータ１１内部には空隙を介してロータ１２が設けられている。又ロータ１２にはシャフト１６が一体的に構成されるとともに、シャフト１６はベアリング１７を介してブラケット１４に軸支されている。又ターミナル１５はステータ１１に電流を供給するものである。 Embodiment 1 FIG.
FIG. 1 is a side sectional view showing a general rotating electrical machine in which a connecting stator is used. In the figure, a stator 11 is fixed inside a frame 13 and a rotor 12 is provided inside the stator 11 via a gap. It has been. A shaft 16 is integrally formed with the rotor 12, and the shaft 16 is pivotally supported by the bracket 14 via a bearing 17. The terminal 15 supplies current to the stator 11.

図２は従来からあるステータ２を構成する連結ステータを示す正面図、図３は同じく平面図、図４は同じく側面図、図５はコアを取り外し、ボビンのみ取り出した状態を示す正面図である。   2 is a front view showing a connecting stator constituting a conventional stator 2, FIG. 3 is a plan view, FIG. 4 is a side view, and FIG. 5 is a front view showing a state where a core is removed and only a bobbin is taken out. .

図において、コア１にはコイルボビン２が取付けられ、コイル３はコイルボビン２の周りに巻回される。又コイルボビン２には巻き始め用のコイル挿入溝４ａ、巻き終わり用のコイル挿入溝４ｂが設けられるとともに、コイルボビン２の中央には凸部２ａが設けられている。   In the figure, a coil bobbin 2 is attached to the core 1, and the coil 3 is wound around the coil bobbin 2. The coil bobbin 2 is provided with a coil insertion groove 4 a for starting winding and a coil insertion groove 4 b for finishing winding, and a convex portion 2 a is provided at the center of the coil bobbin 2.

コイル３の巻き始めを、コイルボビン２に設けられたコイル挿入溝４ａに挿入し、コア１へのコイル３の巻付けを始め、そしてコア１の側面１Ａ、１Ｂに沿って巻かれてきたコイル３を、コイル挿入溝４ｂに挿入して巻き終わりとする。   The winding start of the coil 3 is inserted into the coil insertion groove 4a provided in the coil bobbin 2, the winding of the coil 3 around the core 1 is started, and the coil 3 wound along the side surfaces 1A and 1B of the core 1 Is inserted into the coil insertion groove 4b to finish winding.

図６は連結ステータコアにコイル３を巻いている状態を示す平面図、図７は連結ステータを丸めている状態を示す平面図、図８は連結ステータを完全に丸めることにより、ステータ１１を形成した状態を示す平面図である。   6 is a plan view showing a state in which the coil 3 is wound around the connection stator core, FIG. 7 is a plan view showing a state in which the connection stator is rounded, and FIG. 8 is a stator 11 formed by completely rounding the connection stator. It is a top view which shows a state.

連結ステータは、コイル巻線の巻線密度向上のため、図６に示すように連結ステータコアを帯状にした状態にてコイル３を巻線し、その後、図７に示すように連結ステータを丸め、最終的に図８に示すような円筒形状にし、その中にロータ１２を挿入する。   In order to improve the winding density of the coil winding, the connection stator winds the coil 3 in a state where the connection stator core is formed in a strip shape as shown in FIG. 6, and then rounds the connection stator as shown in FIG. Finally, a cylindrical shape as shown in FIG. 8 is formed, and the rotor 12 is inserted therein.

次に本発明の特徴的部分を図に基づいて説明する。図９〜図１１はこの発明の実施の形態１によるステータ１個を示す平面図であり、図９はコイル３が巻かれていない状態を示す平面図、図１０はコイル３の巻き始めの状態を示す平面図、図１１はコイル３の巻線を完了した状態を示す平面図である。   Next, characteristic portions of the present invention will be described with reference to the drawings. 9 to 11 are plan views showing one stator according to Embodiment 1 of the present invention. FIG. 9 is a plan view showing a state where the coil 3 is not wound. FIG. FIG. 11 is a plan view showing a state where the winding of the coil 3 is completed.

又凸部２ａには、コイル３の巻始め側の円弧状の角部５ａと、巻き終わり側の円弧状の角部５ｂが設けられており、角部５ａにおける円弧の曲率半径をＲａ、角部５ｂにおける円弧の曲率半径をＲｂ、コイル３の半径をＲｃとすると、Ｒａ＞ＲｃかつＲａ＞Ｒｂとなるように構成するものである。尚ＲｂとＲｃの関係については、Ｒｂ＞Ｒｃとなるように構成することが望ましい。   Further, the convex portion 2a is provided with an arcuate corner portion 5a on the winding start side of the coil 3 and an arcuate corner portion 5b on the winding end side, and the radius of curvature of the arc at the corner portion 5a is defined as Ra. When the radius of curvature of the arc in the portion 5b is Rb and the radius of the coil 3 is Rc, Ra> Rc and Ra> Rb are configured. Note that the relationship between Rb and Rc is preferably configured so that Rb> Rc.

図１０に示すように、コイル３を巻き始める際には、コイルボビン２に設けられた巻始め用のコイル挿入溝４ａを通り、凸部２ａに設けられた角部５ａに沿って巻回されて、コイルボビン２の側面６ｂ側から巻線される。次に図１１に示すように巻終わる際には、コイルボビン２の側面６ａから凸部２ａに設けられた角部５ｂに沿って巻回されて、巻終わり用のコイル挿入溝４ｂを通り、巻線作業が完了する。   As shown in FIG. 10, when the coil 3 is started to be wound, the coil 3 is wound along the corner portion 5a provided in the convex portion 2a through the coil insertion groove 4a for starting winding provided in the coil bobbin 2. The coil bobbin 2 is wound from the side surface 6b side. Next, as shown in FIG. 11, when the winding is finished, the coil bobbin 2 is wound from the side surface 6a along the corner 5b provided on the convex portion 2a, passes through the coil insertion groove 4b for winding end, and wound. The line work is completed.

以上のように構成されたステータにおいては、巻始め側の角部５ａの円弧の半径Ｒａが、コイル３の半径Ｒｃより充分大きいため、巻始めのコイル３が凸部２ａから離れて膨らまないようにコイル３が角部５ａに密着しながら沿うよう巻線することが可能となり、巻線の乱れを防止することができる。   In the stator configured as described above, the radius Ra of the corner 5a on the winding start side is sufficiently larger than the radius Rc of the coil 3, so that the winding coil 3 does not swell away from the convex portion 2a. Thus, the coil 3 can be wound so as to be in close contact with the corner 5a, thereby preventing the winding from being disturbed.

また、巻始め側の角部５ａの円弧の半径Ｒａが、巻終わり側の角部５ｂの円弧の半径Ｒｂより大きいので、凸部２ａの周方向における長さが短くても円弧状の角部を作成することができ、コイル３の半径に対応した適切な巻き始め用の円弧形状を形成することができる。更には凸部２ａの強度も充分確保することができるものである。   Further, since the radius Ra of the arc of the corner portion 5a on the winding start side is larger than the radius Rb of the arc of the corner portion 5b on the winding end side, even if the length in the circumferential direction of the convex portion 2a is short, the arc-shaped corner portion Thus, an appropriate arc shape for starting winding corresponding to the radius of the coil 3 can be formed. Furthermore, the strength of the convex portion 2a can be sufficiently secured.

回転電機を示す側面断面図である。It is side surface sectional drawing which shows a rotary electric machine. 回転電機の連結ステータを示す正面図である。It is a front view which shows the connection stator of a rotary electric machine. 回転電機の連結ステータを示す平面図である。It is a top view which shows the connection stator of a rotary electric machine. 回転電機の連結ステータを示す側面図である。It is a side view which shows the connection stator of a rotary electric machine. ボビン部を示す正面図である。It is a front view which shows a bobbin part. 連結ステータコアにコイルを巻いている状態を示す平面図である。It is a top view which shows the state which has wound the coil around the connection stator core. 連結ステータを丸めている状態を示す平面図である。It is a top view which shows the state which has rounded the connection stator. ステータを完成した状態を示す平面図である。It is a top view which shows the state which completed the stator. この発明の実施の形態１によるステータ１個を示す平面図である。It is a top view which shows one stator by Embodiment 1 of this invention. この発明の実施の形態１によるステータ１個を示す平面図である。It is a top view which shows one stator by Embodiment 1 of this invention. この発明の実施の形態１によるステータ１個を示す平面図である。It is a top view which shows one stator by Embodiment 1 of this invention.

符号の説明Explanation of symbols

１ コア、２ ボビン、２ａ 凸部、３ コイル、４ａ，４ｂ コイル挿入溝、
５ａ，５ｂ 角部。 1 core, 2 bobbin, 2a convex part, 3 coil, 4a, 4b coil insertion groove,
5a, 5b Corners.

Claims (2)

コアに取り付けられたコイルボビンにコイルを巻回させるとともに、上記コアを複数個帯状に連結させた連結ステータを有する回転電機において、上記コイルボビンに巻き始め用のコイル挿入溝、巻き終わり用のコイル挿入溝及び中央凸部を設け、上記凸部の角部を円弧状に形成するとともに、上記コイルの巻き始め側の上記角部における円弧の曲率半径が上記コイルの巻き終わり側の上記角部における円弧の曲率半径よりも大きくなるように形成したことを特徴とする回転電機。 In a rotating electrical machine having a connecting stator in which a coil is wound around a coil bobbin attached to a core and a plurality of the cores are connected in a strip shape, a coil insertion groove for starting winding and a coil insertion groove for winding end in the coil bobbin And a central convex portion, the corner of the convex portion is formed in an arc shape, and the radius of curvature of the arc at the corner portion on the winding start side of the coil is the arc radius at the corner portion on the winding end side of the coil. A rotating electric machine characterized by being formed so as to be larger than a radius of curvature. 上記コイルの巻き始め側の上記角部における円弧の曲率半径が上記コイルの半径よりも大きくなるように形成したことを特徴とする請求項１記載の回転電機。 2. The rotating electric machine according to claim 1, wherein a radius of curvature of an arc at the corner portion on the winding start side of the coil is formed to be larger than a radius of the coil.
JP2006160391A 2006-06-09 2006-06-09 Rotating electric machine Expired - Fee Related JP4134201B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013153589A (en) * 2012-01-25 2013-08-08 Denso Corp Stator, and method for manufacturing stator
JP2014064420A (en) * 2012-09-24 2014-04-10 Hitachi Industrial Equipment Systems Co Ltd Dynamo-electric machine
JP2015201936A (en) * 2014-04-07 2015-11-12 株式会社安川電機 Bobbin and rotary electric machine
JP2015213414A (en) * 2014-04-15 2015-11-26 パナソニックＩｐマネジメント株式会社 Rotary machine and electric cleaner using the same
WO2018221565A1 (en) * 2017-06-02 2018-12-06 デンソートリム株式会社 Rotary electric machine and method for manufacturing rotary electric machine
WO2019058649A1 (en) * 2017-09-20 2019-03-28 パナソニックＩｐマネジメント株式会社 Insulator, and stator and motor comprising same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002354738A (en) * 2001-05-24 2002-12-06 Mitsubishi Electric Corp Electric rotating machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002354738A (en) * 2001-05-24 2002-12-06 Mitsubishi Electric Corp Electric rotating machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013153589A (en) * 2012-01-25 2013-08-08 Denso Corp Stator, and method for manufacturing stator
US9866084B2 (en) 2012-01-25 2018-01-09 Denso Corporation Insulated stator of a motor having holding grooves to hold end parts of a coil winding
JP2014064420A (en) * 2012-09-24 2014-04-10 Hitachi Industrial Equipment Systems Co Ltd Dynamo-electric machine
JP2015201936A (en) * 2014-04-07 2015-11-12 株式会社安川電機 Bobbin and rotary electric machine
JP2015213414A (en) * 2014-04-15 2015-11-26 パナソニックＩｐマネジメント株式会社 Rotary machine and electric cleaner using the same
WO2018221565A1 (en) * 2017-06-02 2018-12-06 デンソートリム株式会社 Rotary electric machine and method for manufacturing rotary electric machine
JPWO2018221565A1 (en) * 2017-06-02 2019-06-27 デンソートリム株式会社 Electric rotating machine and method of manufacturing electric rotating machine
WO2019058649A1 (en) * 2017-09-20 2019-03-28 パナソニックＩｐマネジメント株式会社 Insulator, and stator and motor comprising same
JPWO2019058649A1 (en) * 2017-09-20 2020-10-15 パナソニックＩｐマネジメント株式会社 Insulator and stator and motor equipped with it
JP7289102B2 (en) 2017-09-20 2023-06-09 パナソニックＩｐマネジメント株式会社 Insulators and stators and motors equipped with them

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