JP4245109B2

JP4245109B2 - Rotating equipment

Info

Publication number: JP4245109B2
Application number: JP2000136047A
Authority: JP
Inventors: 満彦松下; 尊典小澤; 義人西川; 幹紹鈴木
Original assignee: Asmo Co Ltd
Current assignee: Asmo Co Ltd
Priority date: 2000-05-09
Filing date: 2000-05-09
Publication date: 2009-03-25
Anticipated expiration: 2020-05-09
Also published as: JP2001320848A

Description

【０００１】
【発明の属する技術分野】
本発明は、回転機器に係り、詳しくは平角銅線を巻装した回転機器の巻線端末処理に関するものである。
【０００２】
【従来の技術】
一般に、回転機器のステータコアのティースに巻装した巻線の各コイル端部間の結線は、各ティース（スロット）に巻装した巻線の端末を所定結線位置に取り回してから行うようになっている。巻線が丸線であれば、その巻線がどの方向にも曲げることができるため、結線時における巻線端末の取り回しが自由、つまり、巻線の端末処理が容易である。
【０００３】
【発明が解決しようとする課題】
ところで、従来では、平角銅線を巻装した回転機器が提案されている。このような回転機器では、各ティース（スロット）に巻装した巻線が平角形状であるため、巻線の各コイル端部間の結線時における各巻線端末の取り回しが困難であった。つまり、巻線が縦断面正方形に近い平角線である場合、巻線の曲げは辺の２方向にしか容易に曲げれなかった。また、巻線が縦断面長方形且つ両辺長の差が大きい薄型の平角線である場合、巻線が厚さ方向に曲げやすく、幅方向に曲げにくくなっている。
【０００４】
従って、平角銅線を巻装した回転機器の巻線端末処理は、簡素化することができなかった。
本発明は、前述した事情に鑑みなてされたものであって、その目的は、巻線端末処理の簡素化を図ることができる回転機器を提供することにある。
【０００５】
【課題を解決するための手段】
上記問題点を解決するために、請求項１に記載の発明は、複数のティースを有するステータコアと、絶縁性材料からなり前記ステータコアの一端側に固定された巻線端末支持部材と、前記ステータコアの各ティースに巻装され端末が前記巻線端末支持部材側に引き出された平板導線と、導電性材料からなり前記平板導線の端末を連結する板状の巻線端末連結部材とを備え、前記巻線端末支持部材には、前記平板導線の端末が貫挿するための巻線貫挿孔を複数設けるとともに、２つ以上の前記巻線貫挿孔を結ぶ案内嵌合溝を複数設け、その案内嵌合溝に前記巻線端末連結部材を嵌合させるようにしたことを要旨とする。
【０００６】
請求項２に記載の発明は、請求項１に記載の回転機器において、前記巻線貫挿孔を結ぶ案内嵌合溝は、各巻線貫挿孔の内周側において周方向に湾曲して形成されているとともに、前記巻線端末連結部材を、湾曲させて各案内嵌合溝に嵌合させたことを要旨とする。
【０００７】
請求項３に記載の発明は、請求項１又は２に記載の回転機器において、前記巻線端末連結部材を、各案内嵌合溝に嵌合させてから、各巻線貫挿孔を貫挿し巻線端末支持部材に支持された前記平板導線の端末に固着手段にて固着させたことを要旨とする。
【０００８】
請求項４に記載の発明は、請求項１乃至３のいずれか１に記載の回転機器において、前記巻線端末連結部材と前記平板導線の端末とは、それぞれの広い当接面にて互いに当接していることを要旨とする。
【０００９】
（作用）
請求項１に記載の発明によれば、平板導線の端末を、ぞれぞれ巻線端末支持部材から上方へ突出するように各巻線貫挿孔に貫挿してから案内嵌合溝に嵌合する巻線端末連結部材にて連結することができる。
【００１０】
その結果、平板導線の端末を取り回せず簡単に結線させることができる。つまり、回転機器の巻線端末処理の簡素化を図ることができる。
請求項２に記載の発明によれば、請求項１に記載の発明の作用に加えて、巻線貫挿孔を結ぶ案内嵌合溝は、各巻線貫挿孔の内周側において周方向に湾曲して形成されているとともに、巻線端末連結部材を、湾曲させて各案内嵌合溝に嵌合させた。
【００１１】
従って、各巻線端末連結部材の両端は弾性反力で外周側に位置した平板導線の端末に対して力が加える状態となる。その結果、各巻線端末連結部材と平板導線の端末とは、常に圧接した状態となり互いに離間することなく常に安定に連結することができる。
【００１２】
請求項３に記載の発明によれば、請求項１及び２に記載の発明の作用に加えて、巻線端末連結部材を、各案内嵌合溝に嵌合させてから、各巻線貫挿孔を貫挿し巻線端末支持部材に支持された前記平板導線の端末に固着手段にて固着させた。従って、連結すべく平板導線の端末は、確実に巻線端末連結部材にて連結することができる。
【００１３】
請求項４に記載の発明によれば、請求項１〜３に記載の発明の作用に加えて、巻線端末連結部材と平板導線の端末との当接が広い面接触であるため、平板導線の端末は巻線端末連結部材により安定に連結される。また、接触面積が大きいため、接点での電圧降下を防止することができ、回転機器の効率を確保することができる。
【００１４】
【発明の実施の形態】
以下、本発明を回転機器としての３相９スロットのブラシレスモータに具体化した一実施形態を図面に従って説明する。
【００１５】
図１は本実施形態のブラシレスモータ１０のステータ１１と、巻線端末支持部材としての台座２１及び巻線端末連結部材としての複数個の連結片３１ａ〜３１ｃを示す。
【００１６】
ステータ１１は、図１及び図２に示すように、ステータコア１１ａを構成するアウタコア１２及びインナコア１３を備えている。アウタコア１２は円環状をなしていて、その内周面１４に９つの楔状の凹部１４ａを設けている。
【００１７】
前記インナコア１３は、径方向に延び、かつ回転方向に配置された９個のティース１５を備えている。各ティース１５の先端部（外側端部）には、前記凹部１４ａと嵌合するための楔状の凸部１５ａを設けている。ティース１５の基端部（内側端部）は、隣接するそれと相互に連結され、この連結により円環部１５ｂが形成される。なお、ティース１５の基端部と先端部との間の部分をティース１５の巻線巻装部１５ｃとしている。
【００１８】
各ティース１５の巻線巻装部１５ｃには、平板導線としての巻線１６がそれぞれ巻装されている。なお、本実施形態では、各ティース１５に巻装する巻線１６は、横断面矩形の平角銅線からなっている。そして、図１及び図２に示すように、巻線１６を巻装したティース１５の前記凸部１５ａが対応する前記アウタコア１２の凹部１４ａに嵌合することによってインナコア１３とアウタコア１２とは一体に連結される。つまり、ステータ１１が形成される。このとき、各ティース１５に巻装された巻線１６の２つの巻線端末１６ａ，１６ｂがそれぞれステータ１１の上方へ延びるように引き出されている。なお、図１及び図２に示すように、前記アウタコア１２の内周面１４に近接する９本の巻線端末を巻線端末１６ａとし、前記インナコア１３の円環部１５ｂに近接する９本の巻線端末を巻線端末１６ｂとしている。
【００１９】
前記台座２１は、絶縁材料としての合成樹脂からなり、皿状に成形されている。台座２１は、図１，図４及び図６に示すように、前記アウタコア１２の外径と同じの外径を有し、しかもアウタコア１２の内径より大きな内径を有するリング部２１ａと、該リング部２１ａの上端を閉じる底板部２１ｂとを備えている。その底板部２１ｂの中央には、ブラシレスモータ１０の回転子（ロータ）１７の回転軸１８（図５及び図６に２点鎖線で示す）が貫挿するための円形貫通孔２３が設けられている。
【００２０】
また、図１，図３及び図６に示すように、台座２１の底板部２１ｂには、前記巻線端末１６ａ，１６ｂが貫挿するための第１及び第２の巻線貫挿孔２４ａ，２４ｂが貫設されている。本実施形態では、第１の巻線貫挿孔２４ａは、各巻線端末１６ａが貫挿するために設けられたものであって、前記底板部２１ｂの外周側における同一円周上に９個形成されている。第２の巻線貫挿孔２４ｂは、各巻線端末１６ｂが貫挿するために設けられたものであって、前記底板部２１ｂの内周側における同一円周上に９個形成されている。
【００２１】
さらに、図１，図３及び図６に示すように、台座２１の底板部２１ｂには、前記第１の巻線貫挿孔２４ａ同士を結ぶ第１の案内嵌合溝２５ａと、前記第２の巻線貫挿孔２４ｂ同士を結ぶ第２の案内嵌合溝２５ｂ及び第３の案内嵌合溝２５ｃがその底板部２１ｂの外表面から設けられている。本実施形態では、図３に示すように、第１の案内嵌合溝２５ａは、それぞれ２つの第１の巻線貫挿孔２４ａを連通するように３つ設けられている。第２の案内嵌合溝２５ｂは、それぞれ２つの巻線貫挿孔２４ｂを連通するように３つ設けられている。第３の案内嵌合溝２５ｃは、３つの第２の巻線貫挿孔２４ｂを連通するように１つ設けられている。しかも、第１及び第２の巻線貫挿孔２４ａ，２４ｂをそれぞれ結ぶ第１〜第３の案内嵌合溝２５ａ〜２５ｃは、それらの第１及び第２の巻線貫挿孔２４ａ，２４ｂの内周側において周方向に湾曲して形成されている。
【００２２】
連結片３１ａ〜３１ｃは、導電性材料としての金属板から形成されている。図１及び図５に示すように、第１の連結片３１ａは、２つの端末当接部３２と、その両端末当接部３２を連結する連結部３３とから構成され、前記各第１の案内嵌合溝２５ａに嵌合するように３個設けられている。第２の連結片３１ｂは、２つの端末当接部３４と、その両端末当接部３４を連結する連結部３５とから構成され、前記各第２の案内嵌合溝２５ｂに嵌合するように３個設けられている。第３の連結片３１ｃは、３つの端末当接部３６と、その３つの端末当接部３６を連結する連結部３７とから構成され、前記各第３の案内嵌合溝２５ｃに嵌合するように１個設けられている。
【００２３】
なお、本実施形態では、各端末当接部３２，３４，３６と各巻線端末１６ａ，１６ｂとは、広い当接面にて互いに当接するようになっている。また、各端末当接部３２，３４，３６の当接面の幅が前記巻線端末１６ａ，１６ｂの当接面の幅よりやや広く形成されている。
【００２４】
そして、図４及び図６に示すように、台座２１のリング部２１ａの下端面がアウタコア１２の上端面と当接するまでに前記各巻線端末１６ａ，１６ｂを相対応する第１及び第２の巻線貫挿孔２４ａ，２４ｂにそれぞれ貫挿させる。このとき、各巻線端末１６ａ，１６ｂは、底板部２１ｂの外表面から突出している。次に、図４〜図６及び図８に示すように、各第１〜第３の連結片３１ａ〜３１ｃを、湾曲させるとともに各端末当接部３２，３４，３６を相対応する前記各巻線端末１６ａ，１６ｂと摺接しながら各第１〜第３の案内嵌合溝２５ａ〜２５ｃにそれぞれ嵌合させる。その後、図７に示すように、第１〜第３の連結片３１ａ，３１ｂ，３１ｃを、固着手段としてのろう付けにて巻線端末１６ａ，１６ｂに固着させる。つまり、第１〜第３の連結片３１ａ，３１ｂ，３１ｃの各端末当接部３２，３４，３６を、巻線端末１６ａ，１６ｂにろう付けさせるようになっている。すると、連結すべく巻線１６間の結線、つまり巻線端末処理が完了する。
【００２５】
なお、単独に第１の巻線貫挿孔２４ａを貫挿し底板部２１ｂの外表面から突出した所定の３つの巻線端末１６ａは、それぞれ外部駆動源の３相（Ｕ相、Ｖ相及びＷ相）と接続するようになっている（図示せず）。
【００２６】
本実施形態のブラシレスモータ１０によれば、以下のような特徴を得ることができる。
（１）本実施形態では、アウタコア１２の上端面に配置する合成樹脂からなる台座２１の底板部２１ｂには、巻線１６の巻線端末１６ａ，１６ｂが貫挿するための巻線貫挿孔２４ａ，２４ｂを設けている。また、その底板部２１ｂには、前記巻線１６の巻線端末１６ａ，１６ｂを連結する連結片３１ａ〜３１ｃを嵌合する案内嵌合溝２５ａ〜２５ｃを設けている。
【００２７】
従って、巻線１６の巻線端末１６ａ，１６ｂを、ぞれぞれ台座２１の底板部２１ｂから上方へ突出するように各巻線貫挿孔２４ａ，２４ｂに貫挿してから案内嵌合溝２５ａ〜２５ｃに嵌合する連結片３１ａ〜３１ｃにて連結することができる。
【００２８】
その結果、巻線１６の巻線端末１６ａ，１６ｂを取り回せず簡単に結線させることができる。つまり、ブラシレスモータ１０の巻線端末処理の簡素化を図ることができる。
【００２９】
（２）本実施形態では、第１及び第２の巻線貫挿孔２４ａ，２４ｂをそれぞれ結ぶ第１〜第３の案内嵌合溝２５ａ〜２５ｃは、それらの第１及び第２の巻線貫挿孔２４ａ，２４ｂの内周側において周方向に湾曲して形成されている。また、各第１〜第３の連結片３１ａ〜３１ｃを、湾曲して各第１〜第３の案内嵌合溝２５ａ〜２５ｃにそれぞれ嵌合させるようにした。
【００３０】
従って、各第１〜第３の連結片３１ａ〜３１ｃが湾曲された状態で嵌合されていることから、各第１〜第３の連結片３１ａ〜３１ｃの両端における端末当接部３２，３４，３６は、弾性反力で外周側に位置した巻線１６の巻線端末１６ａ，１６ｂに対して力が加えられた状態となる。その結果、各第１〜第３の連結片３１ａ〜３１ｃの端末当接部３２，３４，３６と巻線１６の巻線端末１６ａ，１６ｂとは、常に圧接した状態となり互いに離間することなく常に安定に連結することができる。
【００３１】
（３）本実施形態では、各第１〜第３の連結片３１ａ〜３１ｃを、各案内嵌合溝２５ａ〜２５ｃに嵌合させてからそれらの巻線端末１６ａ，１６ｂにろう付けにて固着させるようにした。
【００３２】
従って、連結すべく巻線端末１６ａ同士及び巻線端末１６ｂ同士は、確実に連結片３１ａ〜３１ｃにて連結することができる。
（４）本実施形態では、連結片３１ａ〜３１ｃの端末当接部３２，３４，３６と各巻線端末１６ａ，１６ｂとは、広い当接面にて互いに当接するようになっている。
【００３３】
従って、連結片３１ａ〜３１ｃと巻線端末１６ａ，１６ｂとの当接が広い面接触であるため、巻線端末１６ａ，１６ｂは連結片３１ａ〜３１ｃにより安定に連結される。また、接触面積が大きいため、接点での電圧降下を防止することができ、モータ効率を確保することができる。
【００３４】
（５）本実施形態では、第１〜第３の連結片３１ａ〜３１ｃの端末当接部３２，３４，３６の当接面の幅が巻線端末１６ａ，１６ｂの当接面の幅よりやや広く形成されている。
【００３５】
従って、連結片３１ａ〜３１ｃと巻線端末１６ａ，１６ｂとの間のろう付けは容易に施すことができる。
なお、本実施形態は以下のように変更してもよい。
【００３６】
○上記実施形態では、巻線１６は、その短辺面が巻線巻装部１５ｃに当接するように巻線巻装部１５ｃに巻装されて実施したが、巻線１６を、その長辺面が巻線巻装部１５ｃに当接するように巻線巻装部１５ｃに巻装させて実施してもよい。この場合、上記実施形態の特徴（１）〜（５）に記載の効果と同様な効果を得ることができる。
【００３７】
○上記実施形態では、次に巻線巻装部１５ｃに巻き付ける巻線１６は先に巻線巻装部１５ｃに巻き付けた巻線１６とは重ならないようにしたが、次に巻線巻装部１５ｃに巻き付ける巻線１６を先に巻線巻装部１５ｃに巻き付けた巻線１６と一部分が重なりながら巻き付けるように実施してもよい。この場合、上記実施形態の特徴（１）〜（５）に記載の効果と同様な効果を得ることができる。
【００３８】
○上記実施形態では、各ティース１５に巻装する巻線１６は、横断面矩形の平角銅線にて実施したが、巻線１６を、横断面矩形に限定せずその他の横断面扁平形状等の平角銅線にて実施してもよい。この場合、上記実施形態の特徴（１）〜（５）に記載の効果と同様な効果を得ることができる。
【００３９】
○上記実施形態では、台座２１は合成樹脂にて成形されたが、台座２１を、合成樹脂以外の絶縁性材料にて成形してもよい。この場合、上記実施形態の特徴（１）〜（５）に記載の効果と同様な効果を得ることができる。
【００４０】
○上記実施形態では、連結片３１ａ〜３１ｃを、巻線貫挿孔２４ａ，２４ｂを貫挿し台座２１に支持された巻線１６の巻線端末１６ａ，１６ｂと摺接しながら案内嵌合溝２５ａ〜２５ｃに嵌合させてからそれらの巻線端末１６ａ，１６ｂにろう付けにて固着させるようにしたが、連結片３１ａ〜３１ｃを、巻線貫挿孔２４ａ，２４ｂを貫挿し台座２１に支持された巻線１６の巻線端末１６ａ，１６ｂと摺接しながら案内嵌合溝２５ａ〜２５ｃに嵌合させてからそれらの巻線端末１６ａ，１６ｂに固着手段としての溶接又は半田付け等にて固着させるようにしてもよい。この場合、上記実施形態の特徴（１）〜（５）に記載の効果と同様な効果を得ることができる。
【００４１】
○上記実施形態では、本発明を３相９スロットのブラシレスモータに具体化して実施したが、本発明を他のブラシレスモータ又は平角巻線を有するその他の電動機（モータ）に具体化して実施してもよい。この場合、上記実施形態の特徴（１）〜（５）に記載の効果と同様な効果を得ることができる。
【００４２】
次に、上記実施形態及び別例から把握できる請求項に記載した発明以外の技術的思想について、それらの効果と共に以下に記載する。
（１）請求項４に記載の回転機器において、平板導線（１６）の端末（１６ａ，１６ｂ）と当接する巻線端末連結部材（３１ａ〜３１ｃ）の当接面の幅を、同平板導線（１６）の端末（１６ａ，１６ｂ）の当接面の幅より広く形成されていることを特徴とする回転機器。
【００４３】
従って、請求項４に記載の回転機器の効果に加えて、巻線端末連結部材と平板導線の端末とは、固着手段にて容易に固着することができる。
（２）請求項１乃至４のいずれか１に記載の回転機器において、前記インナコア（１３）の各ティース（１５）に巻装する平板導線（１６）は、平角銅線であることを特徴とする回転機器。
【００４４】
【発明の効果】
以上詳述したように、請求項１に記載の発明によれば、回転機器の巻線端末処理の簡素化を図ることができる。
【００４５】
請求項２に記載の発明によれば、請求項１に記載の発明の効果に加えて、平板導線の端末と巻線端末連結部材とは常に安定に連結することができる。
請求項３に記載の発明によれば、請求項１又は２に記載の発明の効果に加えて、連結すべく平板導線の端末は、確実に巻線端末連結部材にて連結することができる。
【００４６】
請求項４に記載の発明によれば、請求項１〜３に記載の発明の効果に加えて、平板導線の端末は巻線端末連結部材により安定に連結されるとともに、回転機器の効率を確保することができる。
【図面の簡単な説明】
【図１】本実施形態のブラスレスモータの要部分解斜視図。
【図２】同じくブラスレスモータのステータの平面図。
【図３】同じくブラスレスモータの台座の平面図。
【図４】同じくブラスレスモータの要部斜視図。
【図５】同じくブラスレスモータの平面図。
【図６】同じくブラスレスモータの図５におけるＡ−Ａ線断面図。
【図７】同じくブラスレスモータの巻線端末と連結片との連結を示す要部斜視図。
【図８】同じくブラスレスモータの巻線端末と連結片との連結を示す要部分解斜視図。
【符号の説明】
１０…回転機器としてのブラシレスモータ、１１ａ…ステータコア、１５…ティース、１６…平板導線としての巻線、１６ａ，１６ｂ…巻線端末、２１…巻線端末支持部材としての台座、２４ａ，２４ｂ…巻線貫挿孔、２５ａ〜２５ｃ…案内嵌合溝、３１ａ〜３１ｃ…巻線端末連結部材としての連結片。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotating device, and more particularly to a winding terminal treatment of a rotating device wound with a rectangular copper wire.
[0002]
[Prior art]
In general, the connection between the coil ends of the winding wound around the teeth of the stator core of the rotating device is performed after the end of the winding wound around each tooth (slot) is routed to a predetermined connection position. Yes. If the winding is a round wire, the winding can be bent in any direction. Therefore, the winding end can be freely handled at the time of connection, that is, the end processing of the winding is easy.
[0003]
[Problems to be solved by the invention]
By the way, conventionally, a rotating device in which a flat copper wire is wound has been proposed. In such a rotating device, since the winding wound around each tooth (slot) has a rectangular shape, it is difficult to handle each winding terminal when connecting between the coil ends of the winding. That is, when the winding is a rectangular wire close to a square in the longitudinal section, the winding of the winding can be easily bent only in two directions of the side. Further, when the winding is a thin rectangular wire having a rectangular longitudinal cross section and a large difference in both side lengths, the winding is easy to bend in the thickness direction and difficult to bend in the width direction.
[0004]
Therefore, the winding end processing of a rotating device wound with a rectangular copper wire cannot be simplified.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a rotating device capable of simplifying winding terminal processing.
[0005]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 is a stator core having a plurality of teeth, a winding terminal support member made of an insulating material and fixed to one end side of the stator core, and the stator core. A flat plate wire wound around each tooth and having a terminal drawn out toward the winding terminal support member; and a plate-shaped winding terminal connecting member made of a conductive material and connecting the terminal of the flat plate wire. The wire end support member is provided with a plurality of winding insertion holes through which the ends of the flat plate conductors are inserted, and is provided with a plurality of guide fitting grooves connecting the two or more winding insertion holes. The gist is that the winding terminal connecting member is fitted in the fitting groove.
[0006]
According to a second aspect of the present invention, in the rotating device according to the first aspect, the guide fitting groove that connects the winding through holes is curved in the circumferential direction on the inner peripheral side of each winding through hole. In addition, the present invention is summarized in that the winding terminal connecting member is bent and fitted into each guide fitting groove.
[0007]
According to a third aspect of the present invention, in the rotating device according to the first or second aspect, after the winding terminal connecting member is fitted in each guide fitting groove, the winding through holes are inserted and wound. The gist of the invention is that the terminal of the flat wire supported by the wire terminal support member is fixed by a fixing means.
[0008]
According to a fourth aspect of the present invention, in the rotating device according to any one of the first to third aspects, the winding terminal connecting member and the end of the flat plate conductor contact each other at their wide contact surfaces. The point is that they are in contact.
[0009]
(Function)
According to the first aspect of the present invention, the end of the flat conductor is inserted into each winding insertion hole so as to protrude upward from the winding terminal support member, and then fitted into the guide fitting groove. It can be connected by a winding terminal connecting member.
[0010]
As a result, it is possible to easily connect the terminals of the flat conductive wires without handling them. That is, it is possible to simplify the winding terminal processing of the rotating device.
According to the second aspect of the invention, in addition to the action of the first aspect of the invention, the guide fitting groove connecting the winding through holes is provided in the circumferential direction on the inner peripheral side of each winding through hole. While being formed to be curved, the winding terminal connecting member was curved and fitted to each guide fitting groove.
[0011]
Therefore, both ends of each winding terminal connecting member are in a state in which force is applied to the ends of the flat plate conductors positioned on the outer peripheral side by elastic reaction force. As a result, each winding terminal connecting member and the end of the flat conductor are always in pressure contact with each other, and can always be stably connected without being separated from each other.
[0012]
According to invention of Claim 3, in addition to the effect | action of the invention of Claim 1 and 2, after making a coil | winding terminal connection member fit to each guide fitting groove, each coil penetration hole Was fixed to the end of the flat plate wire supported by the winding terminal support member by fixing means. Accordingly, the ends of the flat conductors can be reliably connected by the winding terminal connecting member to be connected.
[0013]
According to invention of Claim 4, in addition to the effect | action of invention of Claims 1-3, since contact | abutting with the terminal of a coil end connection member and the terminal of a flat plate wire is wide surface contact, These terminals are stably connected by a winding terminal connecting member. Moreover, since the contact area is large, a voltage drop at the contact can be prevented, and the efficiency of the rotating device can be ensured.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is embodied in a three-phase, nine-slot brushless motor as a rotating device will be described with reference to the drawings.
[0015]
FIG. 1 shows a stator 11 of a brushless motor 10 according to the present embodiment, a pedestal 21 as a winding terminal support member, and a plurality of connection pieces 31a to 31c as winding terminal connection members.
[0016]
As shown in FIGS. 1 and 2, the stator 11 includes an outer core 12 and an inner core 13 that constitute a stator core 11 a. The outer core 12 has an annular shape, and nine wedge-shaped recesses 14a are provided on the inner peripheral surface 14 thereof.
[0017]
The inner core 13 includes nine teeth 15 extending in the radial direction and arranged in the rotational direction. A wedge-shaped convex portion 15 a for fitting with the concave portion 14 a is provided at the tip end portion (outer end portion) of each tooth 15. The base end portion (inner end portion) of the tooth 15 is mutually connected to the adjacent one, and an annular portion 15b is formed by this connection. In addition, the part between the base end part and the front-end | tip part of the teeth 15 is used as the winding winding part 15c of the teeth 15.
[0018]
A winding 16 as a flat conductive wire is wound around the winding winding portion 15 c of each tooth 15. In the present embodiment, the winding 16 wound around each tooth 15 is made of a rectangular copper wire having a rectangular cross section. As shown in FIGS. 1 and 2, the inner core 13 and the outer core 12 are integrally formed by fitting the convex portion 15 a of the tooth 15 around which the winding 16 is wound into the corresponding concave portion 14 a of the outer core 12. Connected. That is, the stator 11 is formed. At this time, the two winding terminals 16 a and 16 b of the winding 16 wound around each tooth 15 are drawn out so as to extend above the stator 11. As shown in FIGS. 1 and 2, nine winding terminals adjacent to the inner peripheral surface 14 of the outer core 12 are designated as winding terminals 16a, and nine winding terminals adjacent to the annular portion 15b of the inner core 13 are used. The winding terminal is the winding terminal 16b.
[0019]
The pedestal 21 is made of a synthetic resin as an insulating material and is formed in a dish shape. As shown in FIGS. 1, 4 and 6, the pedestal 21 has a ring portion 21a having the same outer diameter as the outer core 12 and an inner diameter larger than the inner diameter of the outer core 12, and the ring portion. And a bottom plate portion 21b for closing the upper end of 21a. In the center of the bottom plate portion 21b, a circular through-hole 23 is provided through which a rotating shaft 18 (shown by a two-dot chain line in FIGS. 5 and 6) of the rotor (rotor) 17 of the brushless motor 10 is inserted. Yes.
[0020]
As shown in FIGS. 1, 3 and 6, the bottom plate portion 21b of the base 21 has first and second winding through holes 24a, through which the winding terminals 16a and 16b are inserted. 24b is penetrated. In the present embodiment, nine first winding insertion holes 24a are provided for the respective winding terminals 16a to be inserted, and nine are formed on the same circumference on the outer peripheral side of the bottom plate portion 21b. Has been. The second winding penetration holes 24b are provided for the respective winding terminals 16b to be inserted, and nine are formed on the same circumference on the inner circumference side of the bottom plate portion 21b.
[0021]
Further, as shown in FIGS. 1, 3 and 6, the bottom plate portion 21b of the base 21 has a first guide fitting groove 25a connecting the first winding through holes 24a and the second The second guide fitting groove 25b and the third guide fitting groove 25c that connect the winding through holes 24b are provided from the outer surface of the bottom plate portion 21b. In the present embodiment, as shown in FIG. 3, three first guide fitting grooves 25a are provided so as to communicate with the two first winding insertion holes 24a. Three second guide fitting grooves 25b are provided so as to communicate with the two winding insertion holes 24b. One third guide fitting groove 25c is provided so as to communicate the three second winding insertion holes 24b. In addition, the first to third guide fitting grooves 25a to 25c that connect the first and second winding through holes 24a and 24b respectively are provided in the first and second winding through holes 24a and 24b. It is formed to be curved in the circumferential direction on the inner peripheral side.
[0022]
Connection piece 31a-31c is formed from the metal plate as an electroconductive material. As shown in FIG.1 and FIG.5, the 1st connection piece 31a is comprised from the two terminal contact parts 32, and the connection part 33 which connects the both terminal contact parts 32, Each said 1st Three pieces are provided so as to fit in the guide fitting groove 25a. The second connecting piece 31b is composed of two terminal abutting portions 34 and a connecting portion 35 that connects the both end abutting portions 34, and is fitted into the second guide fitting grooves 25b. Three are provided. The third connecting piece 31c includes three terminal abutting portions 36 and a connecting portion 37 that connects the three terminal abutting portions 36, and fits into the third guide fitting grooves 25c. One is provided.
[0023]
In the present embodiment, the terminal contact portions 32, 34, and 36 and the winding terminals 16a and 16b are in contact with each other on a wide contact surface. Further, the width of the contact surface of each terminal contact portion 32, 34, 36 is formed slightly wider than the width of the contact surface of the winding terminals 16a, 16b.
[0024]
4 and 6, the first and second windings corresponding to the winding terminals 16a and 16b until the lower end surface of the ring portion 21a of the pedestal 21 comes into contact with the upper end surface of the outer core 12. The wire is inserted into the wire insertion holes 24a and 24b. At this time, the winding terminals 16a and 16b protrude from the outer surface of the bottom plate portion 21b. Next, as shown in FIGS. 4 to 6 and 8, the first to third connecting pieces 31 a to 31 c are curved and the terminal contact portions 32, 34, and 36 correspond to each other. The terminals are fitted in the first to third guide fitting grooves 25a to 25c while being in sliding contact with the terminals 16a and 16b. Thereafter, as shown in FIG. 7, the first to third connecting pieces 31a, 31b, 31c are fixed to the winding terminals 16a, 16b by brazing as fixing means. That is, the terminal contact portions 32, 34, 36 of the first to third connecting pieces 31a, 31b, 31c are brazed to the winding terminals 16a, 16b. Then, the connection between the windings 16 to be connected, that is, the winding terminal processing is completed.
[0025]
The predetermined three winding terminals 16a that are inserted through the first winding insertion hole 24a independently and protrude from the outer surface of the bottom plate portion 21b are respectively connected to the three phases (U phase, V phase, and W of the external drive source). Phase) (not shown).
[0026]
According to the brushless motor 10 of the present embodiment, the following features can be obtained.
(1) In this embodiment, the winding penetration hole for winding terminal 16a, 16b of the winding | winding 16 penetrates to the baseplate part 21b of the base 21 which consists of synthetic resins arrange | positioned at the upper end surface of the outer core 12. 24a and 24b are provided. The bottom plate portion 21b is provided with guide fitting grooves 25a to 25c for fitting connecting pieces 31a to 31c for connecting the winding terminals 16a and 16b of the winding 16.
[0027]
Accordingly, the winding terminals 16a and 16b of the winding 16 are inserted into the winding insertion holes 24a and 24b so as to protrude upward from the bottom plate portion 21b of the pedestal 21, respectively. It can connect with the connection pieces 31a-31c fitted to 25c.
[0028]
As a result, the winding terminals 16a and 16b of the winding 16 can be easily connected without being routed. That is, the winding end processing of the brushless motor 10 can be simplified.
[0029]
(2) In the present embodiment, the first to third guide fitting grooves 25a to 25c that connect the first and second winding insertion holes 24a and 24b are the first and second windings, respectively. It is curved in the circumferential direction on the inner peripheral side of the through holes 24a and 24b. In addition, the first to third connecting pieces 31a to 31c are bent and fitted into the first to third guide fitting grooves 25a to 25c, respectively.
[0030]
Therefore, since each 1st-3rd connection piece 31a-31c is fitted in the curved state, the terminal contact parts 32 and 34 in the both ends of each 1st-3rd connection piece 31a-31c are carried out. , 36 is in a state in which a force is applied to the winding terminals 16a, 16b of the winding 16 located on the outer peripheral side by an elastic reaction force. As a result, the terminal contact portions 32, 34, 36 of the first to third connecting pieces 31a-31c and the winding terminals 16a, 16b of the winding 16 are always in pressure contact with each other without being separated from each other. It can be connected stably.
[0031]
(3) In the present embodiment, the first to third connecting pieces 31a to 31c are fitted into the guide fitting grooves 25a to 25c and then fixed to the winding terminals 16a and 16b by brazing. I tried to make it.
[0032]
Therefore, the winding terminals 16a and the winding terminals 16b can be reliably connected by the connecting pieces 31a to 31c to be connected.
(4) In this embodiment, the terminal contact portions 32, 34, and 36 of the coupling pieces 31a to 31c and the winding terminals 16a and 16b are in contact with each other on a wide contact surface.
[0033]
Accordingly, since the contact between the connecting pieces 31a to 31c and the winding terminals 16a and 16b is wide surface contact, the winding terminals 16a and 16b are stably connected by the connecting pieces 31a to 31c. Further, since the contact area is large, voltage drop at the contact can be prevented, and motor efficiency can be ensured.
[0034]
(5) In this embodiment, the width of the contact surface of the terminal contact portions 32, 34, 36 of the first to third connecting pieces 31a-31c is slightly larger than the width of the contact surface of the winding terminals 16a, 16b. Widely formed.
[0035]
Therefore, the brazing between the connecting pieces 31a to 31c and the winding terminals 16a and 16b can be easily performed.
In addition, you may change this embodiment as follows.
[0036]
In the above embodiment, the winding 16 is wound around the winding winding portion 15c so that the short side surface of the winding 16 is in contact with the winding winding portion 15c. The surface may be wound around the winding winding part 15c so that the surface contacts the winding winding part 15c. In this case, the same effects as those described in the features (1) to (5) of the above embodiment can be obtained.
[0037]
In the above embodiment, the winding 16 to be wound around the winding winding portion 15c is not overlapped with the winding 16 previously wound around the winding winding portion 15c. You may implement so that the coil | winding 16 wound around 15c may be wound so that a part may overlap with the coil | winding 16 previously wound around the coil | winding winding part 15c. In this case, the same effects as those described in the features (1) to (5) of the above embodiment can be obtained.
[0038]
In the above embodiment, the winding 16 wound around each tooth 15 is implemented by a rectangular copper wire having a rectangular cross section. However, the winding 16 is not limited to a rectangular cross section, and other flat shapes such as other cross sections. You may implement with a flat rectangular copper wire. In this case, the same effects as those described in the features (1) to (5) of the above embodiment can be obtained.
[0039]
In the above embodiment, the pedestal 21 is formed of a synthetic resin. However, the pedestal 21 may be formed of an insulating material other than the synthetic resin. In this case, the same effects as those described in the features (1) to (5) of the above embodiment can be obtained.
[0040]
In the above embodiment, the connecting pieces 31a to 31c are inserted into the winding insertion holes 24a and 24b and slidably contacted with the winding terminals 16a and 16b of the winding 16 supported by the pedestal 21. After being fitted to 25c, they were fixed to the winding terminals 16a and 16b by brazing, but the connecting pieces 31a to 31c were inserted into the winding through holes 24a and 24b and supported by the base 21. The windings 16 are fitted in the guide fitting grooves 25a to 25c while being in sliding contact with the winding terminals 16a and 16b, and then fixed to the winding terminals 16a and 16b by welding or soldering as fixing means. You may do it. In this case, the same effects as those described in the features (1) to (5) of the above embodiment can be obtained.
[0041]
In the above embodiment, the present invention is embodied in a three-phase, nine-slot brushless motor, but the present invention is embodied in another brushless motor or other electric motor (motor) having a rectangular winding. Also good. In this case, the same effects as those described in the features (1) to (5) of the above embodiment can be obtained.
[0042]
Next, technical ideas other than the invention described in the claims that can be grasped from the above-described embodiment and other examples will be described below together with their effects.
(1) In the rotating device according to claim 4, the width of the contact surface of the winding terminal connecting members (31a to 31c) that contact the terminal (16a, 16b) of the flat conductor (16) is set to the same flat conductor ( A rotating device characterized by being formed wider than the width of the contact surface of the terminal (16a, 16b) of 16).
[0043]
Therefore, in addition to the effect of the rotating device according to the fourth aspect, the winding terminal connecting member and the terminal of the flat conductor can be easily fixed by the fixing means.
(2) In the rotating device according to any one of claims 1 to 4, the flat conductor wire (16) wound around each tooth (15) of the inner core (13) is a flat copper wire. Rotating equipment.
[0044]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, it is possible to simplify the winding terminal processing of the rotating device.
[0045]
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the terminal of the flat conductor and the winding terminal connecting member can always be stably connected.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the ends of the flat conductors can be reliably connected by the winding terminal connecting member to be connected.
[0046]
According to the invention described in claim 4, in addition to the effects of the invention described in claims 1-3, the end of the flat wire is stably connected by the winding terminal connecting member, and the efficiency of the rotating device is ensured. can do.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a main part of a brassless motor according to an embodiment.
FIG. 2 is a plan view of a stator of a brassless motor.
FIG. 3 is a plan view of the base of the brassless motor.
FIG. 4 is a perspective view of the main part of the brassless motor.
FIG. 5 is a plan view of the brassless motor.
6 is a cross-sectional view of the brassless motor taken along line AA in FIG.
FIG. 7 is a perspective view of an essential part showing the connection between the winding terminal and the connecting piece of the brassless motor.
FIG. 8 is an exploded perspective view of the main part showing the connection between the winding terminal and the connecting piece of the brassless motor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Brushless motor as rotating equipment, 11a ... Stator core, 15 ... Teeth, 16 ... Winding as a flat wire, 16a, 16b ... Winding terminal, 21 ... Base as winding terminal supporting member, 24a, 24b ... Winding Line penetration hole, 25a-25c ... guide fitting groove, 31a-31c ... connecting piece as winding terminal connecting member.

Claims

A stator core (11a) having a plurality of teeth (15);
A winding terminal support member (21) made of an insulating material and fixed to one end of the stator core (11a);
A flat conductor (16) wound around each tooth (15) of the stator core (11a) and having terminals (16a, 16b) drawn out toward the winding terminal support member (21);
A plate-like winding terminal connecting member (31a-31c) made of a conductive material and connecting the ends (16a, 16b) of the flat plate conductor (16);
The winding terminal support member (21) is provided with a plurality of winding insertion holes (24a, 24b) through which the terminals (16a, 16b) of the flat plate conductor (16) are inserted, and two or more winding holes are provided. A plurality of guide fitting grooves (25a to 25c) connecting the winding insertion holes (24a, 24b) are provided,
A rotating device characterized in that the winding terminal connecting members (31a to 31c) are fitted into the guide fitting grooves (25a to 25c).

The rotating device according to claim 1,
The guide fitting grooves (25a to 25c) that connect the winding insertion holes (24a, 24b) are curved in the circumferential direction on the inner peripheral side of the winding insertion holes (24a, 24b). The rotating terminal characterized in that the winding terminal connecting members (31a to 31c) are bent and fitted into the guide fitting grooves (25a to 25c).

In the rotating device according to claim 1 or 2,
The winding terminal connecting members (31a to 31c) are fitted into the guide fitting grooves (25a to 25c), and then inserted into the winding through holes (24a and 24b), respectively. ), Which is fixed to the ends (16a, 16b) of the flat plate conductor (16) supported by the fixing means.

The rotating device according to any one of claims 1 to 3,
The rotating device characterized in that the winding terminal connecting members (31a to 31c) and the ends (16a, 16b) of the flat plate conductor (16) are in contact with each other at their wide contact surfaces.