JP2004072899A - Stator of motor - Google Patents

Stator of motor Download PDF

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Publication number
JP2004072899A
JP2004072899A JP2002228697A JP2002228697A JP2004072899A JP 2004072899 A JP2004072899 A JP 2004072899A JP 2002228697 A JP2002228697 A JP 2002228697A JP 2002228697 A JP2002228697 A JP 2002228697A JP 2004072899 A JP2004072899 A JP 2004072899A
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JP
Japan
Prior art keywords
wedge
stator
coil
slot
stator core
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JP2002228697A
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Japanese (ja)
Inventor
Norio Ota
太田 憲男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
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Toshiba Corp
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Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2002228697A priority Critical patent/JP2004072899A/en
Publication of JP2004072899A publication Critical patent/JP2004072899A/en
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  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent displacement of insulating wedges inserted into slot openings for the enhancement of reliability and obtain a stator excellent in workability and advantageous in cost. <P>SOLUTION: As insulating treatment for slots 22 in a stator core 14, wedge pieces 26 and 27 are inserted to close the openings 23 of the slots 22. In this configuration, a plurality of the wedge pieces 26 and 27 are coupled with one another at their bases 28. Thus, the wedge pieces are integrated to obtain a wedge configuration 25. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、固定子のスロット絶縁構造に係わり、特にはスロット開口部にくさびを装着するようにした電動機の固定子に関する。
【0002】
【従来の技術】
従来、例えば換気扇等に採用されているコンデンサ誘導電動機において、予め絶縁処理を施した固定子のスロットにコイルを装着した後、該コイルを装填するために利用するスロット開口部に、夫々くさびを挿着する構成としている。
図11および図12は、その一例を示したもので、そのうち図11は固定子1の要部を示す内周側面図、図12は図11のK−K線に沿って切断して示す要部の横断面図である。
【0003】
これら図面に示すように、鋼板を積層してなる固定子鉄心2にはコイル6を装填するための開口部3を備えた複数のスロット4が設けられ、該スロット4には内壁面に沿った形状の絶縁部材5が装着され、この絶縁部材5を介して各スロット4にコイル6が装着される。このコイル6の装着後、前記開口部3を閉塞するように各スロット4に絶縁用のくさび7が挿着され、以ってコイル6と固定子鉄心2との絶縁処理が施され、また開口部3からコイル6が内方に飛び出すことがないようにした固定子1が構成される。
【0004】
しかるに、上記くさび7は例えばPPS等の熱可塑性樹脂にて形成され、その形状は図11に示すように、やや先細の縦長平板状で例えば図示するように中央から左右に小さく折れ曲がった形状をなすとともに、その長さLは固定子鉄心2の積層厚さEより十分に大きくした寸法(E<L)としている。従って、斯かるくさび7をコイル6が収納されたスロット4内の開口部3側に沿って挿入するとともに、その両端部が固定子鉄心2の両端面より突出した所定の位置に弾性的に保持されている。
【0005】
ところでコイル6の巻数は、例えば主コイルや補コイルとの種別の他に、一般的に幾つかのスロット4において巻数が異なる分巻構成とされており、従って各スロット4におけるコイル6の占有率が異なり、巻数の少ないコイル6が位置するスロット4に挿着されたくさび7は、弾性的な保持力が得られず挿入方向への位置ずれや、左右(回転)方向への位置ずれを起こし、本来の絶縁効果が阻害されるおそれがある。
そのため、従来では図12に示すように各スロット4には、1枚のくさび7や2枚以上の複数枚のくさび7を挿入して弾性的な保持力を高めて不用意な位置ずれを防ぐようにし、更にはワニス処理してコイル6の保護も兼ねてくさび7の位置ずれを防いでいる。
【0006】
しかしながら、上記構成ではくさび7の枚数調整が面倒であり、且つ作業ミスも生じ易い上に、くさび7の移動を阻止するには未だ十分とは云えず信頼性に欠け、またワニス処理では使用する溶剤が環境を悪化するおそれがあるなど、更なる改善が求められている。
そこで、上記の如き絶縁くさびが容易に抜け出ないような工夫が考えられており、例えば特開2000−125500号公報には、絶縁くさびの表面に凸部リブを設けて固定子鉄心との接触抵抗を大きくして、該くさびを確実に保持固定できるようにした構成につき開示されている。
【0007】
【発明が解決しようとする課題】
確かに上記構成のくさびによれば、適正に挿入された状態では容易に抜け出ることなく保持され、本来の絶縁距離を保つことができると思われる。
しかしながら、斯かるくさびにあっても各スロットに収納されたコイルの占有度合に応じて、挿着するくさび枚数を適宜調整せねばならず、やはり面倒な作業であるとともに人為的な作業ミス(枚数調整)も生じ易い。しかも、各スロット毎に単体のくさびを挿入せねばならず、多くの組立工数も要するため作業性に劣り生産コストも高騰するなど実用的な問題を抱えていた。
【0008】
本発明は上記事情に鑑みてなされたものであり、その目的は、絶縁くさびの位置ずれを確実に防ぎ信頼性を高めるとともに、作業性に優れコスト的にも有利な電動機の固定子を提供することにある。
【0009】
【課題を解決するための手段】
上記目的を達成するために、本発明の電動機の固定子は、固定子鉄心に形成されコイルを装着するための開口部を有する複数個のスロットと、このスロット内にスロット絶縁部材を介して装着されたコイルと、前記スロットの開口部を閉塞するように挿着されたくさび構成体とを備え、前記くさび構成体は、複数のくさび片の基端部を一体に連結してなる構成としたことを特徴とする(請求項1の発明)。
【0010】
斯かる構成によれば、個々にくさびを挿入する従来に比し頗る作業性が良く、また一部のスロットにおいて収納されたコイルの占有率が少ない個所があっても、この一体化により容易に位置ずれしたり不用意に抜け出ることがない。加えて、挿入方向に対する位置決めは、連結した基端部が固定子鉄心の端面に衝止することで得られるので挿入作業は容易にでき、従って個々に単体のくさびを複数枚調整しつつ組み込む従来とは異なり、作業効率良く且つ安定した組立品質のもとに絶縁処理に対し信頼性に優れ、実用に好適する固定子が提供できる。
【0011】
そして、請求項1記載のものにおいて、くさび構成体は、そのくさび片の長さが異なる構成としたことを特徴とする(請求項2の発明)。
【0012】
斯かる構成によれば、最初に一つ若しくは幾つかの長いくさび片を先に挿入することとなり、全数のくさび片を同時に挿入するに比べて遥かに作業性に優れ、しかも長いくさび片が後から挿入される短いくさび片のガイド機能をなして、スロットへの挿入が確実で一層作業性が向上する。
【0013】
また、請求項1記載のものにおいて、くさび構成体の基端部は、固定子鉄心の端面より所定の絶縁距離を有する高さ形状としたことを特徴とする(請求項3の発明)。
【0014】
斯かる構成によれば、各くさび片を連結し一体化した基端部を利用して、電気用品安全法等に基づく所定の絶縁距離(高さ)を容易に得ることができ、以ってコイルと固定子鉄心との間における絶縁処理が簡単な構成にて確実にできる。
【0015】
また、請求項1記載のものにおいて、くさび構成体は、コイルの露出端部を覆うコイルカバーを一体に形成した構成としたことを特徴とする(請求項4の発明)。
【0016】
斯かる構成によれば、本来のくさび構成体を挿着する作業工程にて固定子鉄心から露出したコイル端部をコイルカバーで覆うことができ、作業工数を増すことなく該コイルの保護を兼ねた絶縁処理ができ、またコイルカバー全体をリング状に連結一体化した場合には、機械的な強度アップのもとにくさび構成体の挿着作業が容易となる利点を有する。
【0017】
また、請求項1記載のもにおいて、くさび構成体は、固定子鉄心の両端面からスロット内に挿入された組み合わせ構成としたことを特徴とする(請求項5の発明)。
【0018】
斯かる構成によれば、2分割された各くさび片は短く形成できるので、1本の長いくさび片を挿入する場合に比し作業は容易となる。
【0019】
そして、請求項5記載のものにおいて、くさび片の挿入端は、互いに重なり合う構成としたことを特徴とする(請求項6の発明)。
【0020】
斯かる構成によれば、その重なり代に応じて固定子鉄心の異なる厚さのものに対しても、共通のくさび構成体にて対処でき、従って異なる機種の電動機の固定子にも対処できるなど汎用性に富み、且つくさび構成体の標準化が図れて品質の均一化やコスト的にも有利に提供できる。
【0021】
【発明の実施の形態】
(第1の実施の形態)
以下、本発明を換気扇機器などのファンを回転駆動するコンデンサ誘導電動機に適用した第1実施例につき、図1ないし図5に基づき説明する。
まず、図1は要所にて切断して示す電動機11全体の縦断面図で、該電動機11の概略構成につき述べると、外郭を形成するフレームは12は有底筒状の上フレーム12aとほぼ同形状の下フレーム12bとを向い合わせに組み合わせ、複数箇所において図示しないネジ止め手段にて結合されている。
【0022】
このようなフレーム12の内周囲には、固定子13が圧入等により取付固定されている。周知のように、固定子13は鋼板を所定量積層してなる固定子鉄心14と、該鉄心14に巻装されたコイル15とから構成され、この固定子13の内方に円板状の積層鋼板からなる回転子鉄心16を配した回転子17が設けられ、その回転軸18の両端部において上部軸受19および下部軸受20にて回転可能に支承されている。尚、下フレーム12aから突出した上記回転軸18の一端には、例えば換気扇に適用した場合には、図示しない換気扇用ファンが取着され、また上フレーム12bからは複数のリード線21が導出され図示しない電源およびコンデンサ等に接続される。
【0023】
しかして、上記固定子13の具体構成については、更に図2ないし図5を参照して説明する。尚、図2は固定子13の要部の内方から見た所謂内周側面図、図3は図2のA−A線に沿って切断して示す要部の横断面図、図4は後述するくさび構成体25の斜視図、そして図5は要部の構成を明確にするため上記コイル15およびスロット絶縁部材24を除いて示す要部の斜視図である。
そのうち、特に図3,図5に示すように前記固定子鉄心14には、複数のスロット22を有し、該スロット22は固定子鉄心14の中空内周面に開口連通する開口部23を形成していて、前記コイル15のスロット22への装填を容易にしている。
【0024】
そして、各スロット22には、その内壁面に沿って挿入されたスロット絶縁部材24を介して主コイル,補助コイルからなるコイル15が収納され、その後に前記開口部23を閉塞するように絶縁用のくさび構成体25が挿着され、以って固定子13を構成している。
しかるに、上記くさび構成体25は、PPSやPBTなどの成形容易な熱可塑性樹脂、或はPETのフィルム材にて形成され、特に図4の斜視図に示すように例えば長さB,Cが異なる(B>C)2種類のくさび片26,27を交互に複数配置するとともに、これらの基端部28たる上端部を一体にリング状に連結して、全体には円筒状のくさび構成体25を構成するものである。但し、各くさび片26,27の長さB,Cは、いずれも固定子鉄心14の積層厚さEより長く設定されている(B,C>E)。
【0025】
更に、具体的構成につき付言すると、このくさび構成体25の各くさび片26,27の配置ピッチは、各スロット22のピッチに合わせられ、且つ径寸法としては固定子鉄心14の各ティース部14aの先端寄りに嵌合され、開口部23を閉塞する大きさに設定されている。因に、前記した各くさび片26,27の長さBおよびC寸法、更にはリング状基端部28の高さD寸法は、所定の絶縁距離を確保すべき数値に設定される(後述する)とともに、各くさび片26,27の先端たる下端部は、円形状の先細となし且つ薄肉厚となして、コイル15が収納された後のスロット22への挿入を容易にしている。
【0026】
次に、上記構成の作用につき説明する。
電動機11の組立手順は実質的に従来と同様に行なわれるが、ただ本実施例に示すくさび構成体25については以下のように組み込まれる。
即ち、各スロット22内にはスロット絶縁部材24を介してコイル15が装填されている状態から、くさび構成体25を各スロット24の上方から挿着するのであるが、この場合、各くさび片26,27のうち長い側(B)の幾つかのくさび片26が、まず対向するスロット24内に挿入され始め、これに次いで残りのくさび片27も残りのスロット24に挿入され、以降各くさび片26,27が揃って図示下方に挿入移動される。
【0027】
従って、本実施例では最初に全体の半数に減少したくさび片26がスロット22内に挿入されることとなり、全数のくさび片26,27を同時に挿入するに比べて、その挿入作業が容易で確実にでき、しかも、その後に挿入される残り半数は、先の半数がスロット22に一部挿入されていることにより、これが挿入位置決めのガイドの役目をなすから、残りのスロット22に簡単確実に挿入でき、以ってくさび構成体25を固定子鉄心14に対し作業性良く組み込むことができる。
【0028】
そして、その挿入方向の位置決めは、リング状の基端部28が固定子鉄心14のティース部14aを跨ぐようにして端面に衝止することで位置決めされ、且つ各くさび片26,27がスロット22内での弾性的な接触圧により、容易に抜け出ることなく所定位置に保持される。このように、所定位置に組み込まれたくさび構成体25は、特に図1,2に示すように固定子鉄心14の両端面より夫々突出している。
【0029】
即ち、固定子鉄心14の厚さE寸法に対し、各くさび片25,26の長さB,Cはいずれも大きく、その各端部の突出量F1,F2(図2参照)が所定の絶縁距離となるように設定されている。これは、所謂電気用品安全法に謂う電動機に関する規定として定格100ボルトでは絶縁距離を2mmとし、同じく200ボルトでは2.5mmと定められていることに基づくもので、コイル15と固定子鉄心14のティース部14a先端部との間の絶縁を確実になしている。従って、リング状の基端部28の高さDは、少なくとも上記絶縁距離と同じ、若しくはそれ以上の寸法値に設定してある。
【0030】
上記実施例によれば次の効果を有する。
固定子鉄心14のスロット22の絶縁処理するために、該スロット22の開口部23を閉塞するようにくさび片26,27を挿着する構成において、これら複数のくさび片26,27の基端部28を連結一体化したくさび構成体25を設けて、これを組み込むようにしたので、個々にくさびを挿入する従来に比し頗る作業性が良く、また一部のスロット22において収納されたコイル15の占有率が少ない個所があっても、この連結一体化により容易に位置ずれしたり不用意に抜け出ることがない。従って、個々に単体のくさびを複数枚調整しつつ組み込む従来とは異なり、一層作業効率良く且つ安定した品質のもとに絶縁処理に対しても信頼性に優れた固定子13を提供できる。
【0031】
更に、本実施例では各くさび片26,27は、夫々異なる長さB,Cの2段階の構成としたから、一体化しながら同時に全てのくさび片26,27をスロット22に挿入するに比して、まず長い側の半数のくさび片26を挿入すれば良いので、その挿入作業が容易となり、次いで残りのくさび片27を挿入するときには、先に挿入されているくさび片26が挿入位置のガイド機能を果たし、簡単確実に挿着できる。
【0032】
但し、本実施例のように長短半数(2段階の長さ)のくさび片26,27に限らず、例えばガイド機能をなす長いくさび片26は、1個所のみに設けてもリング状の基端部28にて連結された一体構成であるので、挿入時の位置決めに利用できるとともに、好ましくは少なくとも2個所に設ければ一層確実な位置決めができ効率の良い挿入作業が期待できる。このことから、長短2段階の長さ設定に限らず3段階以上の構成としても良いし、また交互に配置せず複数単位に同じ長さのくさび片を配設する構成としても、実質的に上記実施例とほぼ同一の作用効果が期待でき、くさび構成体25の形態は種々変更して実施できる。
【0033】
また、くさび構成体25は、各くさび片26,27の基端部28をリング状に連結して一体化したので、樹脂製にて適度な弾力性のもとに該基端部28を把持しての挿入作業時の強度アップに有効であることはもとより、スロット22に挿入するに際して基端部28が固定子鉄心14の端面に衝止される位置を挿入方向への位置決めとすることができる。このことは、各くさび片26,27を本来の絶縁効果を果たす所定位置に確実に挿着できることであり、所期の絶縁効果とともに作業性にも優れた固定子13が得られる。
【0034】
更に、リング状をなし一体に連ねた基端部28は、電気用品安全法に規定する絶縁距離、即ち固定子鉄心14の端面からの突出高さDを確保するのを兼ねて一体に連結形成することができ、従ってリング状の基端部28は各くさび片26,27の一体化とともに有効な絶縁壁を形成し、絶縁上の安全性を確保するのに有効である。
また、上記実施例では各くさび片26,27の全てを基端部28にて連結一体化したが、これに限らずリング状の周方向に複数に分断して一部のくさび片を連結した形態としても良く、この場合でも従来に比し作業性は良くなるなど、上記実施例とほぼ同様の作用効果が期待できる。
【0035】
上記第1実施例に対し、図6ないし図10は本発明の第2,第3実施例を示したもので、以下、上記実施例と同一部分には同一符号を付して説明を省略し、異なる部分につき説明する。
【0036】
(第2の実施の形態)
まず、図6および図7は本発明の第2実施例を示したもので、図6は本実施例のくさび構成体29を示す図4相当図、図7は要部の組立構成を示す縦断面図である。
このものは、固定子鉄心14に装着したコイル15のうち、スロット22から上部に露出した端部を覆うコイルカバー30を一体化してなるくさび構成体29を特徴としたものである。即ち、上記第1実施例と共通とする複数の長短のくさび片26,27を有するが、その基端部において断面コ字状をなすコイルカバー30を一体に形成した点で異なるものである。
【0037】
しかるに、上記コイルカバー30は、図7に示すようにくさび片26,27の上端部から外周囲に延設され且つ固定子鉄心14から露出したコイル15の端部を覆うことが可能な大きさのリング状に形成され、従って固定子鉄心14の端面からの高さGは、前記した電気用品安全法に基づく所定の絶縁距離を十分に確保した寸法形状をなしている。
【0038】
このように、本実施例によれば上記第1実施例に加えて、コイルカバー30を一体に設けたことにより、本来のくさび構成体29を挿着する作業のみにて上方に露出したコイル15端部を保護するとともに、確実な絶縁壁として機能するものである。従って、従来に謂うワニス処理を施すことなく保護と絶縁性能の向上が図れるとともに、リング状をなすコイルカバー30を一体に有するので、該くさび構成体29の強度も一層向上でき、それだけ挿入作業も簡単確実に実行できる利点を有する。
【0039】
尚、このコイルカバー30とくさび片26,27とを一体化してなるくさび構成体29は、PPSやPBTなどの熱可塑性樹脂にて容易に一体成形できるし、またくさび構成体29は、上記第1実施例と同様に複数に分割することも可能である。更には、コイルカバー30の上面には適宜の透孔を設けて、コイル15から発する熱を発散し易くして温度上昇を抑えることもできるなど、実施に際し種々の展開が可能である。
【0040】
(第3の実施の形態)
次いで、図8ないし図10は本発明の第3実施例を示したもので、図8は分離状態にある本実施例のくさび構成体31を示す要部の拡大図、図9は要部の組立構成を示す縦断面図で、図10は要部の拡大縦断面図である。
このものは、固定子鉄心14のスロット22に対し、該鉄心14の両端面から夫々挿入して組み合わされることによって、くさび構成体31を構成するようにしている。
即ち、このくさび構成体31は、第1のくさび部材32(例えば図示上部側)と、第2のくさび部材33(図示下側)との上下方向に2分割された構成にあって、そのうち第1のくさび部材32は、例えば交互に長短とする2種類のくさび片34,35を複数備え、それらの基端部36をやゝ肉厚としてリング状に連結一体化したもので、夫々の長さH,Iは、いずれも先の第1実施例と異なり固定子鉄心14の厚さEよりも短く設定してある(H,I<E)。
【0041】
これに対し、第2のくさび部材33は、上記第1のくさび部材32の長短のくさび片34,35と互い違いに対峙するように、例えば共通の長短2種類のくさび片34,35から構成され、やはり基端部37にてリング状に連結一体化された構成となしている。しかるに、第1,第2のくさび部材32,33の夫々対峙するくさび片35(長さI)とくさび片34(長さH)とを加えた長さ(I+H)は、固定子鉄心Eより大きくなるように設定してある。
また、各基端部36,37の高さDは、上記第1実施例と同様に十分な絶縁距離を確保した寸法構成にあるとともに、図10に示すように各くさび片34,35の厚さTは、一方のみにても十分な絶縁性能が得られるように、例えば0.2mm以上に設定されている。
【0042】
しかして、固定子鉄心14の両端面から第1,第2のくさび部材32,33を夫々挿入したとき、例えば本実施例では図9,10に示すように一方のくさび片35と他方のくさび片34の各挿入端が重なり合い、所謂重なり代Jを有する構成としている。このことは、そのJ寸法の範囲内にて固定子鉄心14の厚さEの変動に対応できることであり、厚さEよりプラスJ寸法分まで大きくなる厚さの固定子鉄心に対して有効な絶縁措置として使用できることになる。
【0043】
従って、斯かる構成によれば各くさび部材32,33は、夫々両端面から挿入することになるが、夫々のくさび片34,35自体の長さH,Iは、短く設定でき挿入作業は容易となる。また、両端面から挿入された各くさび片34,35の挿入端が重なり合うことで本来のくさび構成体31を得るようにしたので、固定子鉄心14の厚さEが異なる他機種の電動機の固定子にも対応できることから、くさび構成体31の標準化ができ総じてコスト的にも有利となる。
【0044】
尚、各くさび片34,35の長短による作用効果等は上記第1実施例と同様に得られることはもとより、第1、第2のくさび部材32,33を同一構成とすることも可能で、斯かる場合には更に部品の標準化を図ることができ、低コストおよび均一な品質や組立精度の向上等が期待できる。
但し、逆に作業性を考慮して、第1,第2のくさび部材32,33の構成を明確に非共通化して組立ミスを防止すべく、例えば第2のくさび部材の長さを全体に短くするなどして区別できるようにしても良い。
【0045】
尚、本発明は上記し且つ図面に示した各実施例に限定されるものではなく、例えば固定子の外周囲に回転子を備えた所謂外転形の回転子を備えた電動機の固定子にも対応できるとともに、上記各実施例を適宜に組み合せて実施することも可能であるなど、実施に際しては本発明の要旨を逸脱しない範囲内で種々変更して実施できるものである。
【0046】
【発明の効果】
以上の説明から明らかなように、本発明の電動機の固定子は、固定子鉄心が有するスロットに絶縁処理を施すべく、該スロットが有する開口部を閉塞するようにくさび片を挿着する構成において、これら複数のくさび片の基端部を連結して一体化されたくさび構成体を得て、これを組み込むようにした。
この結果、個々に挿入する従来に比し頗る作業性が良く、また一部のスロットにおいて収納されたコイルの占有率が少ない個所があっても、この一体化により容易に位置ずれしたり不用意に抜け出ることがない。
しかも、挿入方向に対する位置決めは、連結した基端部が固定子鉄心の端面に衝止することによって決められるので挿入作業は容易にでき、従って個々に単体のくさびを複数枚調整しつつ組み込む従来とは異なり、一層作業効率良く且つ安定した組立品質のもとに絶縁処理に対し信頼性に優れ、実用に好適した電動機の固定子を提供できる。
【図面の簡単な説明】
【図1】本発明の第1実施例を示し、電動機全体の構成を示す縦断面図
【図2】固定子の要部の内周側面図
【図3】図2のA−A線に沿って切断して示す要部の横断面図
【図4】くさび構成体の斜視図
【図5】コイル等を除いて示す要部の斜視図
【図6】本発明の第2実施例を示す図4相当図
【図7】要部の縦断面図
【図8】本発明の第3実施例を示す要部の拡大図
【図9】要部の縦断面図
【図10】要部の拡大縦断面図
【図11】従来例を示す図2相当図
【図12】図11のK−K線に沿って切断して示す要部の縦断面図
【符号の説明】
11電動機、12はフレーム、13は固定子、14は固定子鉄心、15はコイル、17は回転子、24はスロット絶縁部材、25,29,31はくさび構成体、26,27,34,35はくさび片、28,36,37は基端部、および30はコイルカバーを示す。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a slot insulating structure of a stator, and more particularly, to a stator of an electric motor in which a wedge is attached to a slot opening.
[0002]
[Prior art]
Conventionally, for example, in a capacitor induction motor used for a ventilation fan or the like, a coil is mounted in a stator slot which has been subjected to insulation treatment in advance, and wedges are inserted into slot openings used for loading the coil. It is configured to wear.
FIGS. 11 and 12 show an example of this, in which FIG. 11 is an inner peripheral side view showing a main part of the stator 1, and FIG. 12 is a cross-sectional view taken along the line KK in FIG. It is a cross-sectional view of a part.
[0003]
As shown in these drawings, a plurality of slots 4 having an opening 3 for loading a coil 6 are provided in a stator core 2 formed by stacking steel plates, and the slots 4 extend along the inner wall surface. A shaped insulating member 5 is mounted, and a coil 6 is mounted in each slot 4 via the insulating member 5. After the coil 6 is mounted, an insulating wedge 7 is inserted into each slot 4 so as to close the opening 3, so that the coil 6 and the stator core 2 are insulated from each other. The stator 1 is configured so that the coil 6 does not protrude inward from the portion 3.
[0004]
However, the wedge 7 is formed of a thermoplastic resin such as PPS, for example, and has a slightly tapered vertically long flat plate shape as shown in FIG. At the same time, the length L is set to a dimension (E <L) sufficiently larger than the lamination thickness E of the stator core 2. Therefore, the wedge 7 is inserted along the opening 3 side in the slot 4 in which the coil 6 is housed, and both ends are elastically held at predetermined positions protruding from both end surfaces of the stator core 2. Have been.
[0005]
The number of turns of the coil 6 is, for example, different from the type of the main coil and the auxiliary coil, and is generally a shunt structure in which the number of turns is different in some slots 4. However, the wedge 7 inserted into the slot 4 where the coil 6 having a small number of turns is located cannot obtain an elastic holding force, causing a displacement in the insertion direction or a displacement in the left-right (rotation) direction. However, the original insulating effect may be impaired.
Therefore, conventionally, as shown in FIG. 12, one wedge 7 or a plurality of two or more wedges 7 are inserted into each slot 4 to increase elastic holding force and prevent inadvertent displacement. In addition, varnishing is performed to protect the coil 6 and prevent the wedge 7 from being displaced.
[0006]
However, in the above configuration, the adjustment of the number of wedges 7 is troublesome, and an operation error is apt to occur. In addition, the wedge 7 is not sufficiently reliable to prevent the movement of the wedges 7 and lacks reliability. Further improvement is required, for example, the solvent may deteriorate the environment.
In view of the above, various measures have been considered to prevent the insulating wedge from easily coming off as described above. Is disclosed in which the wedge is enlarged so that the wedge can be securely held and fixed.
[0007]
[Problems to be solved by the invention]
Certainly, according to the wedge having the above configuration, it is considered that when properly inserted, the wedge is held without easily coming off, and the original insulation distance can be maintained.
However, even with such a wedge, the number of wedges to be inserted must be appropriately adjusted in accordance with the degree of occupancy of the coil housed in each slot, which is a troublesome work and also requires a manual operation mistake (number of wedges). Adjustment) is also likely to occur. In addition, a single wedge has to be inserted into each slot, which requires a large number of assembling man-hours, resulting in practical problems such as poor workability and increased production cost.
[0008]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a motor stator that reliably prevents displacement of an insulating wedge, increases reliability, and is excellent in workability and advantageous in cost. It is in.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a stator for an electric motor according to the present invention includes a plurality of slots formed in a stator core and having an opening for mounting a coil, and a plurality of slots mounted in the slots via a slot insulating member. And a wedge component inserted so as to close the opening of the slot, wherein the wedge component is configured by integrally connecting the base ends of a plurality of wedge pieces. It is characterized by the above (invention of claim 1).
[0010]
According to such a configuration, the workability is extremely good as compared with the conventional case where wedges are individually inserted, and even if there is a place where the occupation rate of the coil stored in some slots is small, this integration makes it easy. No misalignment or inadvertent exit. In addition, since positioning in the insertion direction can be obtained by abutting the connected base end against the end face of the stator core, the insertion work can be easily performed. Unlike this, it is possible to provide a stator which is excellent in reliability for insulation processing under a high working efficiency and stable assembly quality and is suitable for practical use.
[0011]
In the first aspect, the wedge component has a configuration in which the lengths of the wedge pieces are different from each other (the invention of the second aspect).
[0012]
According to such a configuration, one or several long wedge pieces are inserted first, which is much more workable than inserting all the wedge pieces at the same time, and the longer wedge pieces are inserted later. The guide function of the short wedge piece inserted from the slot makes it possible to insert the wedge piece into the slot surely, and the workability is further improved.
[0013]
Further, in the first aspect of the present invention, the base end of the wedge structure has a height having a predetermined insulation distance from the end face of the stator core (the invention of the third aspect).
[0014]
According to such a configuration, it is possible to easily obtain a predetermined insulation distance (height) based on the Electrical Appliance and Material Safety Law and the like by utilizing the base end portion where the wedge pieces are connected and integrated. Insulation between the coil and the stator core can be reliably achieved with a simple configuration.
[0015]
Also, in the first aspect of the present invention, the wedge component is configured such that a coil cover that covers the exposed end of the coil is integrally formed (the invention of the fourth aspect).
[0016]
According to such a configuration, the coil end exposed from the stator core can be covered with the coil cover in the work step of inserting the original wedge structure, and the coil can be protected without increasing the number of work steps. Insulation treatment can be performed, and when the entire coil cover is connected and integrated in a ring shape, there is an advantage that the wedge structure can be easily attached and inserted while mechanical strength is increased.
[0017]
Further, in the first aspect of the present invention, the wedge component is a combination configuration inserted into the slot from both end faces of the stator core (the invention of the fifth aspect).
[0018]
According to such a configuration, each of the two divided wedge pieces can be formed short, so that the operation becomes easier as compared with the case where one long wedge piece is inserted.
[0019]
In the fifth aspect, the insertion ends of the wedge pieces are configured to overlap each other (the invention of the sixth aspect).
[0020]
According to such a configuration, it is possible to cope with the stator cores having different thicknesses according to the overlap margin by using the common wedge structure, and therefore, it is possible to cope with the stators of the motors of different models. The versatility and standardization of the wedge structure can be achieved, and the uniformity of the quality and the cost can be advantageously provided.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
(First Embodiment)
Hereinafter, a first embodiment in which the present invention is applied to a condenser induction motor that rotationally drives a fan such as a ventilation fan device will be described with reference to FIGS.
First, FIG. 1 is a vertical cross-sectional view of the entire electric motor 11 cut away at a key point. The general configuration of the electric motor 11 will be described. A frame 12 forming an outer shell is substantially the same as a bottomed cylindrical upper frame 12a. The lower frame 12b of the same shape is combined face-to-face, and connected at a plurality of locations by screwing means (not shown).
[0022]
A stator 13 is attached and fixed to the inner periphery of the frame 12 by press fitting or the like. As is well known, the stator 13 is composed of a stator core 14 formed by laminating a predetermined amount of steel plates, and a coil 15 wound around the core 14. A disk-shaped stator is provided inside the stator 13. A rotor 17 having a rotor core 16 made of a laminated steel plate is provided, and is rotatably supported at both ends of a rotating shaft 18 by an upper bearing 19 and a lower bearing 20. In addition, when applied to a ventilation fan, for example, a ventilation fan (not shown) is attached to one end of the rotating shaft 18 protruding from the lower frame 12a, and a plurality of lead wires 21 are led out from the upper frame 12b. Connected to a power supply and a capacitor (not shown).
[0023]
The specific configuration of the stator 13 will be further described with reference to FIGS. 2 is a so-called inner peripheral side view of the main part of the stator 13 viewed from the inside, FIG. 3 is a cross-sectional view of the main part cut along the line AA in FIG. 2, and FIG. FIG. 5 is a perspective view of a wedge structure 25 described later, and FIG. 5 is a perspective view of a main part excluding the coil 15 and the slot insulating member 24 for clarifying the configuration of the main part.
3 and 5, the stator core 14 has a plurality of slots 22. The slots 22 form openings 23 communicating with the hollow inner peripheral surface of the stator core 14. This facilitates the loading of the coil 15 into the slot 22.
[0024]
Each of the slots 22 accommodates a coil 15 composed of a main coil and an auxiliary coil via a slot insulating member 24 inserted along the inner wall surface thereof. The wedge constituting body 25 is inserted and forms the stator 13.
However, the wedge component 25 is formed of an easily moldable thermoplastic resin such as PPS or PBT, or a PET film material. In particular, as shown in the perspective view of FIG. (B> C) A plurality of two types of wedge pieces 26 and 27 are alternately arranged, and an upper end portion serving as a base end portion 28 is integrally connected in a ring shape to form a cylindrical wedge structure 25 as a whole. It constitutes. However, each of the lengths B and C of the wedge pieces 26 and 27 is set to be longer than the laminated thickness E of the stator core 14 (B, C> E).
[0025]
Further, to add to the specific configuration, the arrangement pitch of the wedge pieces 26 and 27 of the wedge structure 25 is adjusted to the pitch of each slot 22 and the diameter of each tooth portion 14a of the stator core 14 is set as a radial dimension. It is fitted close to the front end and is set to a size that closes the opening 23. The lengths B and C of the wedge pieces 26 and 27 and the height D of the ring-shaped base portion 28 are set to values that ensure a predetermined insulation distance (described later). ), The lower ends of the wedge pieces 26 and 27 are tapered in a circular shape and have a small thickness to facilitate insertion into the slot 22 after the coil 15 is stored.
[0026]
Next, the operation of the above configuration will be described.
The assembling procedure of the electric motor 11 is performed substantially in the same manner as in the prior art, but the wedge component 25 shown in this embodiment is incorporated as follows.
That is, the wedge structure 25 is inserted from above the slots 24 from the state where the coil 15 is loaded into each slot 22 via the slot insulating member 24. In this case, each wedge piece 26 , 27 on the long side (B) first begin to be inserted into the opposing slots 24, and then the remaining wedges 27 are also inserted into the remaining slots 24, and so on. 26 and 27 are aligned and moved downward in the figure.
[0027]
Therefore, in the present embodiment, the wedge pieces 26, which are reduced to half of the total number, are inserted into the slots 22 at first, and the insertion work is easier and more reliable than when all the wedge pieces 26, 27 are inserted at the same time. In addition, the remaining half, which is inserted thereafter, can be easily and securely inserted into the remaining slot 22 because the former half is partially inserted into the slot 22 and serves as a guide for insertion positioning. Thus, the wedge structure 25 can be incorporated into the stator core 14 with good workability.
[0028]
The positioning in the insertion direction is performed by arranging the ring-shaped base end portion 28 so as to straddle the teeth portion 14a of the stator core 14 and colliding with the end surface, and the wedge pieces 26 and 27 are inserted into the slots 22. Due to the elastic contact pressure in the inside, it is held in place without easily coming off. In this way, the wedge members 25 assembled at the predetermined positions protrude from both end surfaces of the stator core 14, respectively, as shown in FIGS.
[0029]
That is, each of the lengths B and C of the wedge pieces 25 and 26 is larger than the thickness E of the stator core 14, and the protruding amounts F1 and F2 (see FIG. 2) of the respective ends are predetermined insulation. It is set to be the distance. This is based on the fact that the insulation distance is set to 2 mm at a rated voltage of 100 volts and 2.5 mm at a rated voltage of 200 volts. Insulation between the tip of the tooth portion 14a is ensured. Therefore, the height D of the ring-shaped base end portion 28 is set to a dimension value at least equal to or greater than the insulation distance.
[0030]
According to the above embodiment, the following effects are obtained.
In order to insulate the slot 22 of the stator core 14, the wedge pieces 26, 27 are inserted so as to close the opening 23 of the slot 22, and the base ends of the plurality of wedge pieces 26, 27 are provided. 28 are connected and integrated, and a wedge component 25 is provided and incorporated. Therefore, the workability is much better than in the conventional case where wedges are individually inserted. Even if there is a portion where the occupancy is small, the connection and integration do not easily cause displacement or inadvertent escape. Therefore, unlike the related art in which a plurality of single wedges are individually adjusted and incorporated, it is possible to provide the stator 13 that is more reliable with respect to the insulation process with more work efficiency and stable quality.
[0031]
Further, in the present embodiment, each wedge piece 26, 27 has a two-stage configuration of different lengths B and C, respectively, so that all the wedge pieces 26, 27 are simultaneously inserted into the slot 22 while being integrated. First, it is sufficient to insert half of the wedge pieces 26 on the long side, so that the insertion work becomes easy. Then, when inserting the remaining wedge pieces 27, the wedge piece 26 inserted first is used as a guide for the insertion position. It functions and can be inserted easily and securely.
[0032]
However, the present invention is not limited to the half wedge pieces 26 and 27 having a half length (two steps in length) as in the present embodiment. For example, even if the long wedge piece 26 serving as a guide function is provided only in one place, it is a ring-shaped base end. Since it is an integrated structure connected by the portion 28, it can be used for positioning at the time of insertion, and preferably, if provided at at least two places, more reliable positioning can be performed and efficient insertion work can be expected. For this reason, the configuration is not limited to the two-step length setting but may be a three-step configuration or a configuration in which wedge pieces of the same length are arranged in a plurality of units without being alternately arranged. The same operation and effects as those of the above embodiment can be expected, and the form of the wedge structure 25 can be changed in various ways.
[0033]
Further, since the wedge pieces 25 and 26 are integrally formed by connecting the base ends 28 of the wedge pieces 26 and 27 in a ring shape, the wedge structure 25 is made of resin and holds the base end 28 with appropriate elasticity. In addition to being effective in increasing the strength at the time of the insertion work, the position at which the base end portion 28 is abutted against the end face of the stator core 14 when inserting into the slot 22 is set as the positioning in the insertion direction. it can. This means that each of the wedge pieces 26 and 27 can be securely inserted into a predetermined position that achieves the original insulating effect, and the stator 13 excellent in workability as well as the desired insulating effect can be obtained.
[0034]
Further, the ring-shaped base end portion 28 is integrally connected so as to secure an insulation distance defined by the Electrical Appliance and Material Safety Law, that is, a protruding height D from the end face of the stator core 14. Therefore, the ring-shaped base portion 28 forms an effective insulating wall together with the integration of the respective wedge pieces 26 and 27, and is effective in ensuring insulation safety.
In the above embodiment, all of the wedge pieces 26 and 27 are connected and integrated at the base end portion 28. However, the present invention is not limited to this, and a plurality of wedge pieces are connected in a ring-shaped circumferential direction. In this case, almost the same operation and effect as in the above embodiment can be expected.
[0035]
6 to 10 show the second embodiment and the third embodiment of the present invention in comparison with the first embodiment. Hereinafter, the same portions as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. The different parts will be described.
[0036]
(Second embodiment)
6 and 7 show a second embodiment of the present invention. FIG. 6 is a view corresponding to FIG. 4 showing a wedge structure 29 of the present embodiment, and FIG. FIG.
This is characterized by a wedge structure 29 formed by integrating a coil cover 30 that covers an end of the coil 15 mounted on the stator core 14 and exposed from the slot 22 to the upper part. That is, it has a plurality of long and short wedge pieces 26 and 27 in common with the first embodiment, but differs in that a coil cover 30 having a U-shaped cross section is integrally formed at the base end.
[0037]
However, as shown in FIG. 7, the coil cover 30 is extended from the upper ends of the wedge pieces 26 and 27 to the outer periphery and can cover the end of the coil 15 exposed from the stator core 14. Therefore, the height G from the end face of the stator core 14 has a dimension and shape that sufficiently secures a predetermined insulation distance based on the above-mentioned Electrical Appliance and Material Safety Law.
[0038]
As described above, according to the present embodiment, in addition to the above-described first embodiment, the coil cover 30 is integrally provided, so that the coil 15 that is exposed upward only by the operation of inserting the original wedge component 29 is provided. It protects the end and functions as a reliable insulating wall. Therefore, the protection and the insulation performance can be improved without performing the so-called varnish treatment, and the ring-shaped coil cover 30 is integrally provided, so that the strength of the wedge component 29 can be further improved, and the insertion work can be performed accordingly. It has the advantage of being simple and reliable.
[0039]
The wedge structure 29 formed by integrating the coil cover 30 and the wedge pieces 26 and 27 can be easily formed integrally with a thermoplastic resin such as PPS or PBT. It is also possible to divide into a plurality as in the case of the first embodiment. Furthermore, various developments are possible in implementation, for example, by providing an appropriate through-hole on the upper surface of the coil cover 30 to easily dissipate the heat generated from the coil 15 and suppress a rise in temperature.
[0040]
(Third embodiment)
8 to 10 show a third embodiment of the present invention. FIG. 8 is an enlarged view of a main part showing a wedge structure 31 of the present embodiment in a separated state, and FIG. FIG. 10 is a longitudinal sectional view showing an assembling configuration, and FIG. 10 is an enlarged longitudinal sectional view of a main part.
These are inserted into the slots 22 of the stator core 14 from both end faces of the core 14 and combined with each other to form a wedge component 31.
That is, the wedge component 31 has a configuration in which a first wedge member 32 (for example, an upper side in the figure) and a second wedge member 33 (a lower side in the figure) are vertically divided into two parts. The one wedge member 32 includes, for example, a plurality of two types of wedge pieces 34 and 35 which are alternately long and short, and their base end portions 36 are slightly thick and are connected and integrated in a ring shape. Each of the heights H and I is set to be shorter than the thickness E of the stator core 14 unlike the first embodiment (H, I <E).
[0041]
On the other hand, the second wedge member 33 is composed of, for example, two types of common long and short wedge pieces 34 and 35 so as to face the long and short wedge pieces 34 and 35 of the first wedge member 32 alternately. Also, the base end 37 is connected and integrated in a ring shape. However, the length (I + H) of the first and second wedge members 32, 33 plus the wedge piece 35 (length I) and the wedge piece 34 (length H) that are opposed to each other is greater than the stator core E. It is set to be large.
The height D of each of the base ends 36 and 37 has a dimensional configuration ensuring a sufficient insulation distance as in the first embodiment, and the thickness of each of the wedge pieces 34 and 35 as shown in FIG. The thickness T is set to, for example, 0.2 mm or more so that sufficient insulation performance can be obtained with only one of them.
[0042]
When the first and second wedge members 32 and 33 are inserted from both end faces of the stator core 14, respectively, for example, in this embodiment, as shown in FIGS. The insertion ends of the pieces 34 overlap each other, and have a so-called overlap margin J. This means that the variation in the thickness E of the stator core 14 can be accommodated within the range of the J dimension, and is effective for a stator core having a thickness larger than the thickness E by up to the plus J dimension. It can be used as an insulation measure.
[0043]
Therefore, according to such a configuration, the wedge members 32 and 33 are inserted from both end surfaces, respectively. However, the lengths H and I of the respective wedge pieces 34 and 35 themselves can be set short and the insertion operation is easy. It becomes. In addition, since the original wedge components 31 are obtained by overlapping the insertion ends of the wedge pieces 34 and 35 inserted from both end surfaces, fixing of the electric motor of another model having a different thickness E of the stator core 14 is performed. Since the wedge structure 31 can be used, the wedge structure 31 can be standardized, which is generally advantageous in terms of cost.
[0044]
It is to be noted that the effects of the lengths of the wedge pieces 34 and 35 can be obtained in the same manner as in the first embodiment, and the first and second wedge members 32 and 33 can have the same configuration. In such a case, it is possible to further standardize the parts, and it is possible to expect low cost, uniform quality, improvement in assembly accuracy, and the like.
However, conversely, in consideration of the workability, the lengths of the second wedge members are reduced, for example, so that the configurations of the first and second wedge members 32 and 33 are clearly non-common to prevent assembly errors. You may make it distinguishable by shortening etc.
[0045]
The present invention is not limited to the embodiments described above and shown in the drawings. For example, the present invention is applied to a stator of an electric motor having a so-called abduction type rotor having a rotor around the stator. The present invention can be implemented by variously changing the embodiments without departing from the gist of the present invention. For example, the embodiments can be appropriately combined and implemented.
[0046]
【The invention's effect】
As is apparent from the above description, the stator of the electric motor of the present invention has a configuration in which a wedge piece is inserted so as to close the opening of the slot in order to perform insulation treatment on the slot of the stator core. The base ends of the plurality of wedge pieces were connected to obtain an integrated wedge structure, which was incorporated.
As a result, the workability is extremely good compared to the conventional method of inserting individually, and even if there is a place where the occupation ratio of the coil stored in some slots is small, it can be easily displaced or careless by this integration Never escape.
In addition, the positioning in the insertion direction is determined by the connected base end portion abutting against the end face of the stator core, so that the insertion operation can be easily performed. On the other hand, it is possible to provide a motor stator that is more reliable in insulation processing and more suitable for practical use under a more efficient and stable assembly quality.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention and showing an overall configuration of an electric motor. FIG. 2 is an inner peripheral side view of a main part of a stator. FIG. FIG. 4 is a perspective view of a wedge structure, and FIG. 5 is a perspective view of a main part excluding a coil and the like. FIG. 6 is a view showing a second embodiment of the present invention. FIG. 7 is a longitudinal sectional view of a main part. FIG. 8 is an enlarged view of a main part showing a third embodiment of the present invention. FIG. 9 is a longitudinal sectional view of a main part. FIG. FIG. 11 is a view corresponding to FIG. 2 showing a conventional example. FIG. 12 is a longitudinal sectional view of a main part cut along line KK in FIG.
11, an electric motor, 12 a frame, 13 a stator, 14 a stator core, 15 a coil, 17 a rotor, 24 a slot insulating member, 25, 29, 31 wedge components, 26, 27, 34, 35 Wedge pieces, 28, 36, and 37 indicate proximal ends, and 30 indicates a coil cover.

Claims (6)

固定子鉄心に形成されコイルを装着するための開口部を有する複数個のスロットと、このスロット内にスロット絶縁部材を介して装着されたコイルと、前記スロットの開口部を閉塞するように挿着されたくさび構成体とを備え、
前記くさび構成体は、複数のくさび片の基端部を一体に連結してなる構成としたことを特徴とする電動機の固定子。
A plurality of slots formed in the stator core and having an opening for mounting a coil, a coil mounted in the slot via a slot insulating member, and inserted so as to close the opening of the slot; With a wedge structure,
A stator for an electric motor, wherein the wedge component is configured by integrally connecting base ends of a plurality of wedge pieces.
くさび構成体は、そのくさび片の長さが異なる構成としたことを特徴とする請求項1記載の電動機の固定子。The stator for an electric motor according to claim 1, wherein the wedge components have different lengths of the wedge pieces. くさび構成体の基端部は、固定子鉄心の端面より所定の絶縁距離を有する高さ形状としたことを特徴とする請求項1記載の電動機の固定子。2. The stator for an electric motor according to claim 1, wherein a base end of the wedge structure has a height having a predetermined insulation distance from an end surface of the stator core. くさび構成体は、コイルの露出端部を覆うコイルカバーを一体に形成した構成としたことを特徴とする請求項1記載の電動機の固定子。The stator for an electric motor according to claim 1, wherein the wedge component has a configuration in which a coil cover that covers an exposed end of the coil is formed integrally. くさび構成体は、固定子鉄心の両端面からスロット内に挿入された組み合わせ構成としたことを特徴とする請求項1記載の電動機の固定子。2. The stator for an electric motor according to claim 1, wherein the wedge component has a combined configuration inserted into the slots from both end faces of the stator core. くさび片の挿入端は、互いに重なり合う構成としたことを特徴とする請求項5記載の電動機の固定子。6. The stator for an electric motor according to claim 5, wherein the insertion ends of the wedge pieces overlap each other.
JP2002228697A 2002-08-06 2002-08-06 Stator of motor Pending JP2004072899A (en)

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WO2006006242A1 (en) * 2004-07-14 2006-01-19 Mitsubishi Denki Kabushiki Kaisha Stator for rotating electric machine
WO2006058871A2 (en) * 2004-12-01 2006-06-08 Siemens Aktiengesellschaft Multi-polar permanently excited synchronous machine comprising tooth coils
JP2009189145A (en) * 2008-02-06 2009-08-20 Oriental Motor Co Ltd Stator for motor and method for manufacturing the same
CN102656777A (en) * 2009-12-23 2012-09-05 丰田自动车株式会社 Stator structure for rotary electric machine and method for mounting stator
JP2013021903A (en) * 2011-06-17 2013-01-31 Nippon Densan Corp Motor
CN105393433A (en) * 2013-07-29 2016-03-09 雷米技术有限公司 Insulating component of motor and assembling method
EP3010118A2 (en) * 2014-10-16 2016-04-20 Toyota Jidosha Kabushiki Kaisha Stator of rotary electric machine
JP2017038485A (en) * 2015-08-11 2017-02-16 株式会社神戸製鋼所 Slot insulator and manufacturing method of rotary electric machine
DE102017102747A1 (en) 2016-02-17 2017-08-17 Fanuc Corporation Stator of an electric motor
US20180212493A1 (en) * 2017-01-20 2018-07-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Device for sealing off multiple grooves of a stator of an electric drive machine
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WO2006006242A1 (en) * 2004-07-14 2006-01-19 Mitsubishi Denki Kabushiki Kaisha Stator for rotating electric machine
US7743483B2 (en) 2004-07-14 2010-06-29 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing a stator in a rotating electric machine
US7944110B2 (en) 2004-07-14 2011-05-17 Mitsubishi Denki Kabushiki Kaisha Stator in rotating electric machine
US7977826B2 (en) 2004-12-01 2011-07-12 Siemens Aktiengesellschaft Multipole permanent-magnet synchronous machine having tooth-wound coils
WO2006058871A2 (en) * 2004-12-01 2006-06-08 Siemens Aktiengesellschaft Multi-polar permanently excited synchronous machine comprising tooth coils
WO2006058871A3 (en) * 2004-12-01 2006-11-02 Siemens Ag Multi-polar permanently excited synchronous machine comprising tooth coils
JP2009189145A (en) * 2008-02-06 2009-08-20 Oriental Motor Co Ltd Stator for motor and method for manufacturing the same
CN102656777A (en) * 2009-12-23 2012-09-05 丰田自动车株式会社 Stator structure for rotary electric machine and method for mounting stator
JP2013021903A (en) * 2011-06-17 2013-01-31 Nippon Densan Corp Motor
CN105393433A (en) * 2013-07-29 2016-03-09 雷米技术有限公司 Insulating component of motor and assembling method
EP3010118A2 (en) * 2014-10-16 2016-04-20 Toyota Jidosha Kabushiki Kaisha Stator of rotary electric machine
US20160111922A1 (en) * 2014-10-16 2016-04-21 Toyota Jidosha Kabushiki Kaisha Stator of rotary electric machine
CN105529845A (en) * 2014-10-16 2016-04-27 丰田自动车株式会社 Stator of rotary electric machine
JP2016082721A (en) * 2014-10-16 2016-05-16 トヨタ自動車株式会社 Stator for rotary electric machine
JP2017038485A (en) * 2015-08-11 2017-02-16 株式会社神戸製鋼所 Slot insulator and manufacturing method of rotary electric machine
DE102017102747A1 (en) 2016-02-17 2017-08-17 Fanuc Corporation Stator of an electric motor
US10367390B2 (en) 2016-02-17 2019-07-30 Fanuc Corporation Insulator for insulating coils of a stator of electric motor
US20180212493A1 (en) * 2017-01-20 2018-07-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Device for sealing off multiple grooves of a stator of an electric drive machine
CN108336848A (en) * 2017-01-20 2018-07-27 保时捷股份公司 The equipment of multiple grooves of stator for sealing power driver
US10707728B2 (en) 2017-01-20 2020-07-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Device for sealing off multiple grooves of a stator of an electric drive machine
JP2020188678A (en) * 2019-05-14 2020-11-19 ハンオン システムズ Driving device for compressor with insulation device
CN111953111A (en) * 2019-05-14 2020-11-17 翰昂汽车零部件有限公司 Apparatus for driving compressor having insulation assembly
KR20200131767A (en) * 2019-05-14 2020-11-24 한온시스템 주식회사 Device for driving a compressor having an insulation assembly
KR102331561B1 (en) * 2019-05-14 2021-11-29 한온시스템 주식회사 Device for driving a compressor having an insulation assembly
JP7004766B2 (en) 2019-05-14 2022-01-21 ハンオン システムズ Compressor drive with insulation
US11581775B2 (en) 2019-05-14 2023-02-14 Hanon Systems Device for driving a compressor with an insulation arrangement
CN111953111B (en) * 2019-05-14 2023-07-28 翰昂汽车零部件有限公司 Device for driving compressor with insulating assembly
EP4391319A1 (en) * 2022-12-22 2024-06-26 Valeo eAutomotive Germany GmbH Method for producing a stator for an electric rotating machine, stator, electric rotating machine and vehicle

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