JP4191437B2 - Board-integrated brushless motor - Google Patents

Board-integrated brushless motor Download PDF

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JP4191437B2
JP4191437B2 JP2002186371A JP2002186371A JP4191437B2 JP 4191437 B2 JP4191437 B2 JP 4191437B2 JP 2002186371 A JP2002186371 A JP 2002186371A JP 2002186371 A JP2002186371 A JP 2002186371A JP 4191437 B2 JP4191437 B2 JP 4191437B2
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circuit board
substrate
spacer
pin
brushless motor
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JP2004032916A (en
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真吾 鈴木
一也 中村
琴也 小田桐
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Namiki Precision Jewel Co Ltd
Adamant Namiki Precision Jewel Co Ltd
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Namiki Precision Jewel Co Ltd
Adamant Namiki Precision Jewel Co Ltd
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【０００１】
【発明の属する技術分野】
本発明は、ブラシレスモータと各種基板、具体的には、前記ブラシレスモータを回転駆動するための駆動回路基板、前記ブラシレスモータのセンサマグネットの磁極位置を検出するための位置検出回路基板、更に、エンコーダ板に対応して信号を出力するエンコーダ用回路基板との一体構造に関するものである。
【０００２】
【従来の技術】
ポンプ等に代表される駆動機器の動力源に用いれるブラシレスモータには、一般的に、モータ本体とは別に、ブラシレスモータの駆動用部品が実装された駆動回路基板が用意され、電気的に接続されている。
【０００３】
更に、前記ブラシレスモータが、ロータ位置検出用のセンサ駆動型ブラシレスモータの場合は、センサマグネットの磁極位置の検出用部品が実装された位置検出回路基板が前記センサ駆動型ブラシレスモータに物理的に接続される。
【０００４】
又、前記ブラシレスモータにエンコーダを組み込む場合は、モータシャフトに多数のスリットか、又は窪みが設けられたエンコーダ板が固定されると共に、前記エンコーダ板の回転によって変化する光情報に対応して信号を出力するするエンコーダ用回路基板が、前記センサ駆動型ブラシレスモータに物理的に接続される。
【０００５】
以上のようにブラシレスモータにはその仕様や要求される機能に応じて、様々な部品や素子を実装した各種基板が電気的又は物理的に接続される。
【０００６】
従来、上記各種基板と前記ブラシレスモータとは、それぞれ別体に前記駆動機器に取り付け、又は電気的、物理的に接続されていた。
【０００７】
【発明が解決しようとする課題】
しかしながら前記の通り、従来の構成ではブラシレスモータと、上記各種基板とは別体に取り付け、又は電気的、物理的に接続されていたため、コネクタや取付板といった付属部品の点数が多くなり、その分駆動機器全体の体積が大きくならざるを得ず、駆動機器の小型化を図ることが困難であった。
【０００８】
更に、付属部品の増加によって、コストの上昇や取付工数の増加も招いていた。
【０００９】
本発明は、上記各課題に鑑みて為されたものであり、付属部品の点数と取付工数を削減して、駆動機器の小型化とコストダウンを可能とするブラシレスモータと各種基板との一体構造を提供することである。
【００１１】
【課題を解決するための手段】
本発明の請求項１記載の発明は、複数の基板と電気的又は物理的に接続されると共に、モータハウジングの片側端部にフランジが設けられたブラシレスモータにおいて、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設すると共に、前記基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、１枚目の基板に設けた切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定し、次に、前記細径部に第１のスペーサを挿入し、前記段部と前記第１のスペーサとで前記１枚目の基板周縁部を挟持すると共に、更に、２枚目の基板に設けた切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記第１のスペーサの周辺部で支持、固定し、次に、前記細径部に第２のスペーサを挿入し、前記第１及び第２のスペーサとで前記２枚目の基板周縁部を挟持し、以後、前記２枚目の基板の固定構造と同様な、前記細径部にスペーサを挿入すると共に、前記切り欠きを前記細径部外周面に面接触させ、更に、基板周縁部を前記スペーサ周辺部で支持、固定するという構造を、残り全ての枚数の基板で順次繰り返すことにより、前記複数の基板を積層状に支持、固定して一体化することを特徴とするブラシレスモータを提供するものである。
【００１２】
又、請求項２記載の発明は、基板と電気的又は物理的に接続されると共に、モータハウジングの片側端部にフランジが設けられたブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、更に、前記基板に前記ピンの挿入用の穴を設け、その穴に前記ピンを挿入し、前記張出部で前記基板の周縁部を支持、固定することによって、前記基板を一体化することを特徴とするブラシレスモータを提供するものである。
【００１３】
又、請求項３記載の発明は、複数の基板と電気的又は物理的に接続されると共に、モータハウジングの片側端部にフランジが設けられたブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、更に、前記基板に前記ピンの挿入用の穴を設け、１枚目の基板の穴に前記ピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、次に、前記基板収納台の内部に第１のスペーサを収納して、前記張出部と前記第１のスペーサとで前記基板周縁部を挟持すると共に、更に、２枚目の基板の穴に前記ピンを挿入すると共に、その基板周縁部を前記第１のスペーサで支持、固定し、次に、前記基板収納台の内部に第２のスペーサを収納して、前記第１及び第２のスペーサとで前記２枚目の基板周縁部を挟持し、以後、前記２枚目の基板の固定構造と同様な、前記基板収納台の内部にスペーサを収納すると共に、前記穴に前記ピンを挿入し、基板周縁部を前記スペーサで支持、固定するという構造を、残り全ての枚数の基板で順次繰り返すことによって、前記複数の基板を前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするブラシレスモータを提供するものである。
【００１５】
更に、請求項４記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、モータシャフトにセンサマグネットを固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設すると共に、前記センサマグネットの磁極感知用部品が実装された位置検出回路基板と前記駆動回路基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、前記位置検出回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定し、次に、前記細径部にスペーサを挿入し、前記段部と前記スペーサとで前記基板周縁部を挟持し、更に、前記駆動回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記スペーサの周辺部で支持、固定することによって、前記位置検出回路基板と前記駆動回路基板とを積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータを提供するものである。
【００１６】
又、請求項５記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられたセンサレス駆動型ブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、
更に、前記駆動回路基板に前記ピンの挿入用の穴を設け、その穴に前記ピンを挿入し、前記張出部で前記基板の周縁部を支持、固定することによって、前記駆動回路基板を一体化することを特徴とするセンサレス駆動型ブラシレスモータを提供するものである。
【００１７】
更に、請求項６記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、モータシャフトにセンサマグネットを固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され且つ前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、前記センサマグネットの磁極感知用部品が実装された位置検出回路基板と前記駆動回路基板に、前記ピンの挿入用の穴を設け、前記位置検出回路基板の穴にピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、次に、前記基板収納台の内部にスペーサを収納して、前記張出部と前記スペーサとで前記基板周縁部を挟持し、更に、前記駆動回路基板の穴にピンを挿入すると共に、その基板周縁部を前記スペーサで支持、固定することによって、前記位置検出回路基板と前記駆動回路基板とを前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータを提供するものである。
【００１８】
又、請求項７記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、多数のスリット又は窪みが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設し、更に、前記駆動回路基板と、発光素子及び光検出素子が実装されたエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、前記エンコーダ用回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定し、次に、前記細径部に第１のスペーサを挿入し、前記段部と前記第１のスペーサとで前記エンコーダ用回路基板の周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、前記位置検出回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記第１のスペーサの周辺部で支持、固定し、次に、前記細径部に第２のスペーサを挿入し、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、前記駆動回路基板の切り欠きを前記細径部外周面に面接触させると共にその基板周縁部を前記第２のスペーサの周辺部で支持、固定することによって、前記エンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータを提供するものである。
【００１９】
又、請求項８記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、多数のスリット又は窪みが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面にピンを立設し、
側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面に設置し、更に、前記駆動回路基板と、発光素子及び光検出素子が実装されたエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板に前記ピンの挿入用の穴を設け、エンコーダ用回路基板の穴にピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、次に、前記基板収納台の内部に第１のスペーサを収納して、前記張出部と前記第１のスペーサとで前記基板周縁部を挟持すると共に、
前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、位置検出回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第１のスペーサで支持、固定し、次に、前記基板収納台の内部に第２のスペーサを収納して、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、駆動回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第２のスペーサで支持、固定することによって、前記エンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータを提供するものである。
【００２０】
又、請求項９記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けられたセンサ駆動型ブラシレスモータにおいて、発光素子又は光検出素子が実装された第１のエンコーダ用回路基板を前記凹部に固定し、次に多数のスリットが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納することにより、前記発光素子又は光検出素子と、前記スリットとを面対向配置すると共に、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設し、更に、前記駆動回路基板と、光検出素子又は発光素子が実装された第２のエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、前記第２のエンコーダ用回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定することにより、前記第２のエンコーダ用回路基板に実装された光検出素子又は発光素子が前記スリットと面対向するように配置し、次に、前記細径部に第１のスペーサを挿入し、前記段部と前記第１のスペーサとで前記第２のエンコーダ用回路基板の周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、前記位置検出回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記第１のスペーサの周辺部で支持、固定し、次に、前記細径部に第２のスペーサを挿入し、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、前記駆動回路基板の切り欠きを前記細径部外周面に面接触させると共にその基板周縁部を前記第２のスペーサの周辺部で支持、固定することによって、前記第２のエンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータを提供するものである。
【００２１】
又、請求項１０記載の発明は、ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けられたセンサ駆動型ブラシレスモータにおいて、発光素子又は光検出素子が実装された第１のエンコーダ用回路基板を前記凹部底面に固定し、次に多数のスリットが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納することにより、前記発光素子又は光検出素子と、前記スリットとを面対向配置すると共に、前記フランジ平面にピンを立設し、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面に設置し、更に、前記駆動回路基板と、光検出素子又は発光素子が実装された第２のエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板に、前記ピンの挿入用の穴を設け、前記第２のエンコーダ用回路基板の穴にピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、次に、前記基板収納台の内部に第１のスペーサを収納して、前記張出部と前記第１のスペーサとで前記基板周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、位置検出回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第１のスペーサで支持、固定し、次に、前記基板収納台の内部に第２のスペーサを収納して、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、駆動回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第２のスペーサで支持、固定することによって、前記第２のエンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータを提供するものである。
【００２２】
又、請求項１１記載の発明は、ブラシレスモータと前記各基板、又は前記各基板間の電気的な接続を、リード線、並列ピンコネクタ、フレキシブル回路基板の何れかとすることを特徴とするブラシレスモータを提供するものである。
【００２３】
【発明の実施の形態】
＜第１の実施形態＞
以下、本発明の第１の実施形態を、図１〜図３を参照しながら説明する。
【００２４】
図１は本発明の第１の実施形態に係る、センサレス駆動型ブラシレスモータと駆動回路基板との一体構造を示す組立斜視図であり、図２は前記ブラシレスモータと駆動回路基板とが組み込まれて一体化する構造を示す要部拡大斜視図であり、図３は図２をＡ−Ａ一点鎖線で切断したときの部分側断面図である。
【００２５】
図１〜図３において、１はセンサレス駆動型ブラシレスモータであり（以下、必要に応じてモータ１と記載する）、モータハウジング２の片側端部にはフランジ31がカシメ固定されて設けられている。そのフランジ31の平面上には４つの穴が設けられると共に各穴にピン５を嵌め込んで、モータシャフト４の軸方向にピン５を立設する。
【００２６】
各ピン５は、前記軸方向で途中からステップ状に細径化され、太径部5gと細径部5dとが設けられることによって段部5aが形成される。各ピン５の段部5aは、前記軸方向と垂直な一面上で高さが一致するように形成される。
【００２７】
６は、センサレス駆動型ブラシレスモータ１の駆動用部品（ドライバIC及び抵抗、コンデンサ等）が実装された駆動回路基板である（以下、必要に応じて基板６と略す）。但し、基板６上の回路パターンや駆動用部品等の図示は省略する。基板６の外周面には前記細径部5dの外周形状と一致する形状（図中では円弧状）に切り欠き6aがピン５の本数分だけ設けられる。
【００２８】
このような駆動回路基板６をモータ１に一体に搭載するには、先ず、４箇所の切り欠き6aを細径部5d の外周面に面接触させ、駆動回路基板６を４本のピン５で形成される内側空間に収納する。
【００２９】
次に、駆動回路基板６をモータシャフト４の軸方向に、フランジ31に向かってスライドさせ、駆動回路基板６の周縁部を４箇所の段部5aに面接触させて支持する。段部5aは前記基板６と面接触するので、絶縁性の材料が最も好ましいが、基板６の図示しない回路パターンと接触しなければ、金属性の材料で構成しても良い。
【００３０】
更に、基板６と段部5aとの面接触箇所を、接着など所望の手段で固定することによって駆動回路基板６をモータ１に一体に搭載する。以上のように、駆動回路基板６とモータ１との一体構造を形成する上で、切り欠き6aと細径部5dとを密着させるので、一体後に駆動回路基板６ががたを起こすこと無く堅固にモータ１に搭載することが可能となる。
【００３１】
前記基板６を一体化したモータ１を駆動機器に使用する場合は、ピン５と駆動回路基板６を保護するために、図２に示すような樹脂製のキャップ７をフランジ31に被せる。
【００３２】
フランジ31からは４本のリード線８が引き出され、駆動回路基板６に半田等で固定され、ブラシレスモータ１と駆動回路基板６とが電気的に接続される。一方、駆動回路基板６からは、図示しない外部の機器又は回路基板等と電気接続するための入力電源用のリード線8'が、キャップ７の穴7aを通って外部へと引き出される。これらのリード線８、8'は並列ピンコネクタ、又はフレキシブル回路基板と置き換えても良い。
【００３３】
＜第２の実施形態＞
次に、本発明の第２の実施形態を、図４〜図６を参照しながら説明する。なお、第２の実施形態の説明は、第１の実施形態と異なる点のみとし、第１の実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００３４】
図４は、本発明の第２の実施形態に係る、センサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図５は図４の前記ブラシレスモータと基板とが組み込まれて一体化された構造を示す要部拡大斜視図であり、図６は図５をＢ−Ｂ一点鎖線で切断したときの側断面図である。
【００３５】
図４〜図６において、９はセンサ駆動型ブラシレスモータ（以下、必要に応じてモータ９と記載する）であり、10はモータシャフト４に嵌合、固定されるセンサマグネットである。なお、モータ９はフランジ32側の一部のみを図示し、他の部分は省略する。
【００３６】
フランジ32の平面上には凹部32aが設けられ、その空間内にセンサマグネット10がモータシャフト４に嵌合固定されて収納される。
【００３７】
11は、ホール素子等と云った磁極検出用部品が実装された位置検出回路基板であり（以下、必要に応じて基板11と略す）、この基板11の外周面にはピン５の細径部5dの外周形状と一致する形状（図中では円弧状）の切り欠き11aがピン５の本数分だけ設けられる。
【００３８】
次に、位置検出回路基板11と駆動回路基板６をモータ１に一体に搭載する手段を順に説明する。先ず、位置検出回路基板11に設けた４箇所の切り欠き11aを細径部5d の外周面に面接触させ、位置検出回路基板11を４本のピン５で形成される内側空間に収納する。このとき前記磁極検出用部品が実装された面側（図４では裏側）が、センサマグネット10の磁極面と対向するように配置する。
【００３９】
次に、位置検出回路基板11をモータシャフト４の軸方向にフランジ32に向かってスライドさせ、基板11の周縁部を４箇所の段部5aに面接触させて支持する。
【００４０】
更に、基板11と段部5aとの面接触箇所を接着など所望の手段で固定することによって、位置検出回路基板11をモータ９に一体に搭載する。以上のように、位置検出回路基板11とモータ９との一体構造を形成する上で、前記切り欠き11aと細径部5dとが密着するので、一体後に位置検出回路基板11ががたを起こすこと無く堅固にモータ９に搭載される。
【００４１】
更に、位置検出回路基板11の上から、細径部5dにスペーサ5bを挿入し、段部5aとスペーサ5bとで位置検出回路基板11の周縁部を挟持する。更に、スペーサ5bの上から、駆動回路基板６を第１の実施形態と同様に取り付け、基板６の周縁部をスペーサ5bの周辺部5cで支持、固定する。以上のように、スペーサ5bを介して２枚の基板６、11を積層状にモータ９に一体に搭載する。
【００４２】
第１の実施形態と同様に、ピン５と前記基板６、11を保護する樹脂製のキャップ７（図２参照）がフランジ32に被せられるが、図示は省略する。
【００４３】
図４〜図６のいずれかに示すように、フランジ32からは駆動回路基板６の接続用に３本のリード線８が引き出され、位置検出回路基板11からは駆動回路基板６との電気接続のために、８本のリード線11cが引き出される。これらのリード線８、8'、11cは並列ピンコネクタ、又はフレキシブル回路基板に置き換えても良い。
【００４４】
太径部5gは基板11と、スペーサ5bは２つの基板６、11と面接触するので、共に絶縁性の材料が最も好ましいが、各基板６、11と絶縁がとれれば太径部5gとスペーサ5bは金属性の材料で構成しても良い。絶縁をとる手段としては、太径部5g及びスペーサ5bを、各期板６、11上の図示しない回路パターンと接触させないようにすることが挙げられる。
【００４５】
＜第３の実施形態＞
次に、本発明の第３の実施形態を、図７〜図９を参照しながら説明する。なお、第３の実施形態の説明は、第２の実施形態と異なる点のみとし、第２の実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００４６】
図７は、本発明の第３の実施形態に係るセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図８は図７のブラシレスモータと基板とが組み込まれて一体化された構造を示す要部拡大斜視図であり、図９は図８をＣ−Ｃ一点鎖線で切断したときの側断面図である。
【００４７】
図７〜図９において、第３の実施形態が第２の実施形態と異なる点は、位置検出回路基板11をフランジ32の凹部32aに収納して固定する点と、位置検出回路基板11の中央を貫くようにモータシャフト４を延出させ、その端部にセンサマグネット10を嵌合、固定したことである。
【００４８】
＜第４の実施形態＞
次に、本発明の第４の実施形態を、図１０〜図１２を参照しながら説明する。なお、第４の実施形態の説明は、前記各実施形態と異なる点のみとし、前記各実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００４９】
図１０は、本発明の第４の実施形態に係るセンサレス駆動型ブラシレスモータと駆動回路基板との一体構造を示す組立斜視図であり、図１１は図１０を矢印a方向から見たときの概略平面図であり、図１２は図１０に示す前記ブラシレスモータと駆動回路基板とが組み込まれて一体化され、かつＤ−Ｄ一点鎖線で切断したときの部分側断面図である。
【００５０】
図１０及び図１２において、フランジ31の平面上には４つの穴が設けられ、各穴に円柱状のピン5'がモータシャフト４の軸方向に嵌め込まれ、立設される。
【００５１】
更に、フランジ31の平面上には樹脂製の基板収納台12が固定設置される。この基板収納台12は、円筒状の側面12aと、その側面12aの内周面から僅かに径方向に内側に向かって張り出した張出部12bとを有する形状に形成されており、両端が開口状になっている。
【００５２】
張出部12bには、４箇所に切り欠き12cが設けられており、その形状はピン5'の外周形状と一致するように（図１０では、円弧状）形成される。
【００５３】
この切り欠き12cをピン5'に面接触させ、ピン5'を全て基板収納台12の内部に収納しながら、基板収納台12をフランジ31の平面上に設置し、適宜、接着などの手段により固定する。
【００５４】
更に、基板収納台12の内部に駆動回路基板６を収納する。駆動回路基板６の周縁部寄りの位置には、ピン5'を挿入するための穴6bが設けられる。基板収納台12への収納は、先ずピン5'を穴6bに挿入し、次にモータシャフト４の軸方向にフランジ31に向かって駆動回路基板６をスライドさせ、その周縁部を張出部12bに面接触させて支持し、適宜、接着などの固定手段により面接触箇所（図１１の斜線部）を固定することによって行われる。このように駆動回路基板６は、４本のピン5'と、基板収納台12とで支持、固定されるので、がたを起こすことなく堅固にモータ１に一体に搭載可能となる。
【００５５】
本実施例のモータ１を駆動機器に使用する場合、基板収納台12の一方の開口は、駆動回路基板６とピン5'を保護するために、図１２に示すように蓋13によって覆われる。蓋13にはリード線8'を通すための穴（図２の穴7aのようなもの）が設けられるが、ここでは図示は省略する。
【００５６】
＜第５の実施形態＞
次に、本発明の第５の実施形態を図１３と図１４を参照しながら説明する。なお、第５の実施形態の説明は、第４の実施形態と異なる点のみとし、第４の実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００５７】
図１３は、本発明の第５の実施形態に係るセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図１４は前記ブラシレスモータと基板とが組み込まれて一体化され、かつＥ−Ｅ一点鎖線で切断したときの側断面図である。
【００５８】
図１３及び図１４において、フランジ32の平面上に基板収納台12が第４の実施形態と同様に固定設置され、その内部に位置検出回路基板11が収納、固定されて、基板11の面上に実装された図示しない磁極検出用部品と、センサマグネット10の磁極とが面対向配置される。
【００５９】
スペーサ14には４箇所に切り欠き14aが設けられており、その形状はピン5'の外周形状と一致するように（図１３では、円弧状）形成される。この切り欠き14aがピン5'に面接触され、基板収納台12の内部にスペーサ14が積層するように収納され、張出部12bとスペーサ14とで位置検出回路基板11の周縁部を挟持する。更に、スペーサ14の上方から駆動回路基板６を収納し、その周縁部をスペーサ14に面接触させて固定することにより、位置検出回路基板11と駆動回路基板６とを積層状にモータ９に一体化することができる。
【００６０】
基板収納台12には、第４の実施形態と同様に蓋13を被せるが、図示は省略する。
【００６１】
スペーサ14は２枚の基板６、11と面接触するので、絶縁性の材料が最も好ましいが、各基板６、11と絶縁がとれれば金属性の材料で構成しても良い。絶縁をとる手段としては、スペーサ14を各基板６、11の図示しない回路パターンと接触させないことが挙げられる。
【００６２】
＜第６の実施形態＞
次に、本発明の第６の実施形態を、図１５〜図１７を参照しながら説明する。なお、第６の実施形態の説明は、第２の実施形態と異なる点のみとし、第２の実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００６３】
図１５は、本発明の第６の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図１６は図１５のブラシレスモータと基板とが組み込まれて一体化された構造を示す要部拡大斜視図であり、図１７は図１６をＦ−Ｆ一点鎖線で切断したときの側断面図である。
【００６４】
図１５〜図１７において、15は多数のスリット15aが周方向に等間隔に設けられたエンコーダ板であり、モータシャフト４に嵌合固定されて凹部32aに収納される。
【００６５】
16は、発光素子、及びエンコーダ板15の回転に伴うスリット15aへの前記発光素子からの光の通過又は反射によって変化する光強度を検出する光検出素子等が実装されたエンコーダ用回路基板であり（以下、必要に応じて基板16と略す）、基板16の外周面には、細径部5dの外周形状と一致する形状（図中では円弧状）に切り欠き16aがピン５の本数分だけ設けられている。更に、基板16の中央部にはモータシャフト４を貫通させるための穴が設けられる。
【００６６】
エンコーダ用回路基板16をモータ９に搭載するには、先ず、前記切り欠き16aを細径部5dの外周面に面接触させ、エンコーダ用回路基板16を４本の細径部5dで形成される内側空間に配置する。このとき前記発光素子及び光検出素子が実装される面側（図１５では裏側）がエンコーダ板15と対向するように配置する。
【００６７】
次に、エンコーダ用回路基板16をモータシャフト４の軸方向にフランジ32側にスライドさせ、前記穴にモータシャフト４を挿通しつつ、基板16の周縁部を４箇所の段部5aに面接触させて、支持する。
【００６８】
更に、前記基板16と段部5aとの面接触箇所を接着など所望の手段で固定することによって、エンコーダ用回路基板16をモータ９に一体に搭載する。以上のように、エンコーダ用回路基板16とモータ９との一体構造を形成する上で、前記切り欠き16aと細径部5dとが密着するため、一体化後にエンコーダ用回路基板16ががたを起こすことなく堅固にモータ９に搭載可能となる。
【００６９】
次に、エンコーダ用回路基板16の上から、細径部5dに第１のスペーサ5fを挿入し、前記段部5aと第１のスペーサ5fとでエンコーダ用回路基板16の周縁部を挟持する。
【００７０】
第１のスペーサ5fの前記軸方向の厚みによって、エンコーダ用回路基板16上に形成される空間を利用して、センサマグネット10をモータシャフト４の端部に嵌合固定した状態で配置する。更にその上から、位置検出回路基板11を第１のスペーサ5fの周辺部5eに面接触させて支持し、固定する。
【００７１】
更に、位置検出回路基板11の上から、駆動回路基板６を第２の実施形態と同じ手段でモータ９に搭載する。
【００７２】
以上のように、ピン５とスペーサ5f、5bによって３枚の基板６、11、16が積層状にモータ９に一体搭載することができる。
【００７３】
第１の実施形態と同様に、フランジ32にはピン５と基板６、11、16とを保護するための樹脂製のキャップ７（図２参照）が被せられるが、図示は省略する。
【００７４】
なお、太径部5gとスペーサ5f、5bは各基板６、11、16と面接触するので、絶縁性の材料が最も好ましいが、各基板６、11、16と絶縁がとれれば金属性の材料で構成しても良い。絶縁をとる手段としては、太径部5g及びスペーサ5f、5bを、各基板６、11、16の図示しない回路パターンと接触しないようにすることが挙げられる。
【００７５】
エンコーダ用回路基板16からはリード線17、18が引き出され、18は駆動回路基板６に半田等で固定されることで電源供給用に使用され、17は図示しない外部の機器又は回路基板等と電気接続される。これらのリード線17、18も前記リード線８、8'、11cと同様に並列ピンコネクタ、又はフレキシブル回路基板に置き換え可能である。
【００７６】
＜第７の実施形態＞
次に、本発明の第７の実施形態について、図１８及び図１９を参照しながら説明する。なお、第７の実施形態の説明は、第５及び第６の実施形態と異なる点のみとし、上記各実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００７７】
図１８は、本発明の第７の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図１９は図１８を組み立てた後、Ｇ−Ｇ一点鎖線で切断したときの側断面図である。
【００７８】
フランジ32の平面上には基板収納台12が固定設置され、その内部にエンコーダ用回路基板16、位置検出回路基板11、及び駆動回路基板６が順に収納される。各基板６、11、16の周縁部寄りの位置には、ピン5'を挿入するための穴6b、11b、16bが設けられる。
【００７９】
エンコーダ用回路基板16の基板収納台12への収納は、ピン5'を穴16bに挿入し、次にモータシャフト４の軸方向にフランジ32に向かってエンコーダ用回路基板16をスライドさせ、その周縁部を張出部12bに面接触させて支持し、適宜、接着などの方法で面接触箇所を固定することによって行う。
【００８０】
次に、エンコーダ用回路基板16の上から、第１のスペーサ19を基板収納台12の内部に収納する。スペーサ19には４箇所に切り欠き19aが設けられており、その形状はピン5'の外周形状と一致するように（図１８では、円弧状）形成される。この切り欠き19aをピン5'に面接触させ、基板収納台12の内部にスペーサ19が積層されるように収納し、張出部12bとスペーサ19とでエンコーダ用回路基板16の周縁部を挟持する。
【００８１】
第１のスペーサ19の前記軸方向の厚みによって、エンコーダ用回路基板16上に形成される空間を利用して、センサマグネット10をモータシャフト４の端部に嵌合固定した状態で配置する。
【００８２】
更に、その上から位置検出回路基板11を収納し、基板11の周縁部を第１のスペーサ19に面接触させて支持、固定する。
【００８３】
更に、位置検出回路基板11の上から基板収納台12の内部に、第２のスペーサ14を収納して、第１のスペーサ19と第２のスペーサ14とで位置検出回路基板11の周縁部を挟持し、その上から駆動回路基板６を収納して、基板６の周縁部をスペーサ14で支持、固定する。
【００８４】
以上のように、基板収納台12と２つのスペーサ14、19によって３枚の基板６、11、16を積層状にモータ９に一体に搭載することができる。各基板６、11、16は穴6b、11b、16bによってピン5'に支持されているので、一体後にがたを起こすことなく堅固にモータ９に搭載することが可能である。
【００８５】
上記第６及び第７の実施形態は技術的思想により種々、変更可能であり、スリット15aを窪みに変更してエンコーダ板15を形成しても良い。この場合、エンコーダ用回路基板16上には、前記発光素子と、窪みによる前記発光素子からの光強度の変化を検出する光検出素子を実装する。
【００８６】
スペーサ14、19は各基板６、11、16と面接触するので、絶縁性の材料が最も好ましいが、各基板６、11、16と絶縁がとれれば、金属性の材料で構成しても良い。絶縁をとる手段としては、スペーサ14、19を各基板６、11、16の図示しない回路パターンと接触しないようにすることが挙げられる。
【００８７】
＜第８の実施形態＞
次に、本発明の第８の実施形態を、図２０と図２１を参照しながら説明する。なお、第８の実施形態の説明は、第６の実施形態と異なる点のみとし、第６の実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００８８】
図２０は、本発明の第８の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図２１は、図２０の一体構造を組み立てた後、Ｈ−Ｈ一点鎖線で切断したときの部分側断面図である。
【００８９】
図２０及び図２１において、第８の実施形態が第６の実施形態と異なる点は、発光素子及び光検出素子を別々のエンコーダ用回路基板16、20に実装したことである。以下、エンコーダ用回路基板20は必要に応じて基板20と略す。本実施形態では、第１のエンコーダ用回路基板20に発光素子を、一方、第２のエンコーダ用回路基板16に光検出素子を実装するものとして説明を行う。
【００９０】
発光素子を実装した第１のエンコーダ用回路基板20は、フランジ32に設けられた凹部32aの底面に固定される。更に、第１のエンコーダ用回路基板20の上から、多数のスリット15aが周方向に等間隔に設けられたエンコーダ板15をモータシャフト４に嵌合固定して凹部32aに収納する。
【００９１】
前記の通り、第２のエンコーダ用回路基板16には、エンコーダ板15の回転に伴って前記発光素子からの出射光がスリット15aに通過、又は不通過することによって変化する光強度を検出する光検出素子等が実装される。
【００９２】
図２０及び図２１では、発光素子及び光検出素子の図示は省略しているが、２つの素子は共にスリット15aと面対向するように配置されて、モータ９に一体化される。
【００９３】
第１の実施形態と同様に、フランジ32にはピン５と基板６、11、16とを保護するための樹脂製のキャップ７（図２参照）が被せられるが、図示は省略する。
【００９４】
上記第８の実施形態は技術的思想により種々、変更可能であり、第１のエンコーダ用回路基板20に光検出素子を実装し、第２のエンコーダ用回路基板16に発光素子を実装しても良い。
【００９５】
なお、モータ９と駆動回路基板６との電気的な接続、駆動回路基板６と各基板11、16、20との電気的な接続、駆動回路基板６への電源供給のための接続、及び光検出素子を実装する側のエンコーダ用回路基板から引き出されるA、B、Z相の出力信号線といった、リード線の引き出し状態は上記各実施形態に準ずるため、説明と図示は省略する。
【００９６】
＜第９の実施形態＞
次に、本発明の第９の実施形態について、図２２及び図２３を参照しながら説明する。なお、第９の実施形態の説明は、第７の実施形態と異なる点のみとし、上記各実施形態と同じ構成部品については同一番号を付し、重複する記載は省略、又は簡略して記述する。
【００９７】
図２２は、本発明の第９の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図であり、図２３は図２２を組み立てた後、I−I一点鎖線で切断したときの部分側断面図である。
【００９８】
図２２及び図２３において、第９の実施形態が第７の実施形態と異なる点は、発光素子及び光検出素子を別々のエンコーダ用回路基板16、20に実装したことである。本実施形態では、第１のエンコーダ用回路基板20に発光素子を、一方、第２のエンコーダ用回路基板16に光検出素子を実装するものとして説明を行う。
【００９９】
発光素子を実装した第１のエンコーダ用回路基板20は、フランジ32に設けられた凹部32aの底面に固定される。更に、第１のエンコーダ用回路基板20の上から、多数のスリット15aが周方向に等間隔に設けられたエンコーダ板15をモータシャフト４に嵌合固定して凹部32aに収納する。
【０１００】
前記の通り、第２のエンコーダ用回路基板16には、エンコーダ板15の回転に伴って前記発光素子からの出射光がスリット15aに通過、又は不通過することによって変化する光強度を検出する光検出素子等が実装される。
【０１０１】
図２２及び図２３では、発光素子及び光検出素子の図示は省略しているが、２つの素子は共にスリット15aと面対向するように配置されて、モータ９に一体化される。
【０１０２】
第４の実施形態と同様に、基板収納台12の一方の開口には蓋体13（図12参照）が被せられるが、図示は省略する。
【０１０３】
上記第９の実施形態は技術的思想により種々、変更可能であり、第１のエンコーダ用回路基板20に光検出素子を実装し、第２のエンコーダ用回路基板16に発光素子を実装しても良い。
【０１０４】
なお、モータ９と駆動回路基板６との電気的な接続、駆動回路基板６と各基板11、16、20との電気的な接続、駆動回路基板６への電源供給のための接続、及び光検出素子を実装する側のエンコーダ用回路基板から引き出されるA、B、Z相の出力信号線といった、リード線の引き出し状態は上記各実施形態に準ずるため、説明と図示は省略する。
【０１０５】
なお、本発明は技術的思想に基づいて変更可能であり、例えば上記各実施形態で説明した、モータの構成、又は基板に実装する部品の変更に伴って、リード線の本数を変更しても良く、各実施形態で説明した本数に限定されるものでは無い。
【０１０６】
又、ピン５の太径部5gと細径部5dとは上記各実施形態のように、一体形成されるものとは限らず、太径部5gを円筒状のスペーサとし、細径部5dに挿入するタイプに置き換えても良い。
【０１０７】
【発明の効果】
以上のように、本発明に依れば、ブラシレスモータのフランジ側にピン及びスペーサ、又はピンと基板収納台及びスペーサを設けて、各種基板を積層状にブラシレスモータに一体化する構造としたので、部品点数と取付工数を削減して、駆動機器の小型化とコストダウンが可能となるものである。
【０１０８】
更に、ブラシレスモータの機能、及びブラシレスモータの使用機器の仕様や機能に応じて所望の部品や素子を実装した基板を追加装備する必要が生じても、後付け作業を容易に行うことが可能となる。
【図面の簡単な説明】
【図１】 本発明の第１の実施形態に係る、センサレス駆動型ブラシレスモータと駆動回路基板との一体構造を示す組立斜視図。
【図２】 図１のブラシレスモータと駆動回路基板とが組み込まれて一体化された構造を示す要部拡大斜視図。
【図３】 図２をＡ−Ａ一点鎖線で切断したときの部分側断面図。
【図４】 本発明の第２の実施形態に係る、センサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図５】 図４のブラシレスモータと基板とが組み込まれて一体化された構造を示す要部拡大斜視図。
【図６】 図５をＢ−Ｂ一点鎖線で切断したときの側断面図。
【図７】 本発明の第３の実施形態に係るセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図８】 図７のブラシレスモータと基板とが組み込まれて一体化された構造を示す要部拡大斜視図。
【図９】 図８をＣ−Ｃ一点鎖線で切断したときの側断面図。
【図１０】 本発明の第４の実施形態に係るセンサレス駆動型ブラシレスモータと駆動回路基板との一体構造を示す組立斜視図。
【図１１】 図１０を矢印a方向から見たときの概略平面図。
【図１２】 図１０に示す前記ブラシレスモータと駆動回路基板とが組み込まれて一体化され、かつＤ−Ｄ一点鎖線で切断したときの部分側断面図。
【図１３】 本発明の第５の実施形態に係るセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図１４】 前記ブラシレスモータと基板とが組み込まれて一体化され、かつＥ−Ｅ一点鎖線で切断したときの側断面図。
【図１５】 本発明の第６の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図１６】 図１５のブラシレスモータと基板とが組み込まれて一体化された構造を示す要部拡大斜視図。
【図１７】 図１６をＦ−Ｆ一点鎖線で切断したときの側断面図。
【図１８】 本発明の第７の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図１９】 図１８を組み立てた後、Ｇ−Ｇ一点鎖線で切断したときの側断面図。
【図２０】 本発明の第８の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図２１】 図２０の一体構造を組み立てた後、Ｈ−Ｈ一点鎖線で切断したときの部分側断面図。
【図２２】 本発明の第９の実施形態に係るエンコーダ付きセンサ駆動型ブラシレスモータと各種素子を実装した複数の基板との一体構造を示す組立斜視図。
【図２３】 図２２を組み立てた後、I−I一点鎖線で切断したときの部分側断面図。
【符号の説明】
１・・・センサレス駆動型ブラシレスモータ
２・・・モータハウジング
３１、３２・・・フランジ
４・・・モータシャフト
５、5'・・・ピン
６・・・駆動回路基板
７・・・キャップ
９・・・センサ駆動型ブラシレスモータ
10・・・センサマグネット
11・・・位置検出回路基板
12・・・基板収納台
13・・・蓋体
14、19・・・スペーサ
15・・・エンコーダ板
16、20・・・エンコーダ用回路基板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a brushless motor and various substrates, specifically, a drive circuit substrate for rotationally driving the brushless motor, a position detection circuit substrate for detecting a magnetic pole position of a sensor magnet of the brushless motor, and an encoder The present invention relates to an integral structure with an encoder circuit board that outputs a signal corresponding to a plate.
[0002]
[Prior art]
A brushless motor used as a power source for a drive device represented by a pump or the like is generally provided with a drive circuit board mounted with brushless motor drive components separately from the motor body, and is electrically connected. Has been.
[0003]
Further, when the brushless motor is a sensor-driven brushless motor for detecting the rotor position, a position detection circuit board on which components for detecting the magnetic pole position of the sensor magnet are mounted is physically connected to the sensor-driven brushless motor. Is done.
[0004]
In addition, when an encoder is incorporated in the brushless motor, an encoder plate provided with a number of slits or depressions is fixed to the motor shaft, and a signal corresponding to optical information that changes as the encoder plate rotates is transmitted. The encoder circuit board to be output is physically connected to the sensor-driven brushless motor.
[0005]
As described above, various substrates on which various components and elements are mounted are electrically or physically connected to the brushless motor according to the specifications and required functions.
[0006]
Conventionally, the various substrates and the brushless motor are separately attached to the driving device or electrically and physically connected to each other.
[0007]
[Problems to be solved by the invention]
However, as described above, in the conventional configuration, since the brushless motor and the various boards are attached separately or electrically and physically connected, the number of accessory parts such as connectors and mounting plates increases. The volume of the entire drive device has to be large, and it has been difficult to reduce the size of the drive device.
[0008]
Furthermore, the increase in the number of accessory parts has led to an increase in cost and an increase in the number of mounting steps.
[0009]
The present invention has been made in view of the above-mentioned problems, and is an integrated structure of a brushless motor and various substrates that can reduce the number of attachment parts and the number of mounting steps, and can reduce the size and cost of a driving device. Is to provide.
[0011]
[Means for Solving the Problems]
Claim 1 of the present invention In the brushless motor which is electrically or physically connected to a plurality of substrates and is provided with a flange at one end of the motor housing, the flange plane has a stepped portion by a small diameter portion and a large diameter portion. And a notch in surface contact with the outer peripheral surface of the small-diameter portion is provided on the outer peripheral surface of the substrate, and the notch provided on the first substrate is provided on the outer periphery of the small-diameter portion. The substrate is brought into surface contact, and the peripheral edge of the substrate is supported and fixed by the step portion. Next, a first spacer is inserted into the small-diameter portion, and the step portion and the first spacer While sandwiching the peripheral edge of the second substrate, the notch provided in the second substrate is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the peripheral edge of the substrate is the peripheral portion of the first spacer. Support, fix, and then the second spacer on the small diameter part The second and second spacers are sandwiched between the first and second spacers, and thereafter, the spacer is inserted into the narrow-diameter portion, similar to the fixing structure of the second substrate. The notch is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the structure in which the peripheral edge of the substrate is supported and fixed by the peripheral portion of the spacer is sequentially repeated on all the remaining number of substrates, thereby The present invention provides a brushless motor characterized in that a substrate is supported and fixed in a laminated manner and integrated.
[0012]
Claims 2 In the brushless motor which is electrically or physically connected to the substrate and is provided with a flange at one end of the motor housing, the invention described is provided with a pin standing on the flange plane, and from the side surface and the side surface. A substrate storage base formed from an overhanging portion and provided with a notch that is in surface contact with the outer peripheral surface of the pin in the overhanging portion, and the flange while making the notch surface contact with the outer peripheral surface of the pin. The substrate is installed on a plane, and further provided with a hole for inserting the pin in the substrate, the pin is inserted into the hole, and the peripheral portion of the substrate is supported and fixed by the overhanging portion. The present invention provides a brushless motor characterized by integrating the motor.
[0013]
Claims 3 The described invention is a brushless motor that is electrically or physically connected to a plurality of substrates and has a flange provided at one end of a motor housing. A substrate storage base that is formed from a projecting portion that projects from a side surface, and that has a notch that is in surface contact with the outer peripheral surface of the pin, while the notch is in surface contact with the outer peripheral surface of the pin. Installed on the flange plane, further provided a hole for insertion of the pin in the substrate, inserting the pin into the hole of the first substrate, and supporting the peripheral edge of the substrate by the overhanging portion, Next, the first spacer is accommodated in the substrate storage table, the peripheral edge of the substrate is sandwiched between the overhanging portion and the first spacer, and further, the second substrate When the pin is inserted into the hole Next, the peripheral edge of the substrate is supported and fixed by the first spacer, and then the second spacer is accommodated in the substrate accommodating table, and the two pieces are combined with the first and second spacers. After sandwiching the peripheral portion of the substrate of the second eye, a spacer is accommodated inside the substrate storage base, similar to the fixing structure of the second substrate, and the pin is inserted into the hole, and the peripheral portion of the substrate is The structure of supporting and fixing with the spacer is sequentially repeated for all the remaining number of substrates, thereby supporting and fixing the plurality of substrates in a stacked manner inside the substrate storage table. A brushless motor is provided.
[0015]
Further claims 4 The described invention is electrically connected to a drive circuit board on which driving parts for a brushless motor are mounted, a flange is provided at one end of the motor housing, and a recess is provided in the flange plane. In a sensor-driven brushless motor in which a sensor magnet is fixed to a motor shaft and accommodated in the concave portion, a pin having a step portion formed by a small diameter portion and a large diameter portion is erected on the flange plane, and the sensor magnet The position detection circuit board on which the magnetic pole sensing component is mounted and the outer peripheral surface of the drive circuit board are provided with notches that are in surface contact with the outer peripheral surface of the narrow-diameter portion, and the notches of the position detection circuit board are formed in the thin portions. The peripheral surface of the substrate is brought into surface contact with the outer peripheral surface of the diameter portion, and the peripheral edge portion of the substrate is supported and fixed by the step portion, and then a spacer is inserted into the small diameter portion, By sandwiching the peripheral edge of the substrate with a pacer, and bringing the notch of the drive circuit board into surface contact with the outer peripheral surface of the small-diameter portion, and supporting and fixing the peripheral edge of the substrate with the peripheral portion of the spacer The position detection circuit board and the drive circuit board are supported in a laminated manner, fixed and integrated to provide a sensor-driven brushless motor.
[0016]
Claims 5 The described invention is a sensorless drive type brushless motor which is electrically connected to a drive circuit board on which drive parts for a brushless motor are mounted and has a flange provided on one end of the motor housing. A board storage base that is provided with a pin and is formed of a side surface and an overhang portion that protrudes from the side surface, and is provided with a notch that is in surface contact with the outer surface of the pin. Installing on the flange plane while bringing the notch into surface contact with the surface,
Further, the drive circuit board is provided with a hole for inserting the pin, the pin is inserted into the hole, and the peripheral part of the board is supported and fixed by the projecting portion, thereby integrating the drive circuit board. The present invention provides a sensorless drive type brushless motor.
[0017]
Further claims 6 The described invention is electrically connected to a drive circuit board on which driving parts for a brushless motor are mounted, a flange is provided at one end of the motor housing, and a recess is provided in the flange plane. In the sensor-driven brushless motor in which a sensor magnet is fixed to a motor shaft and accommodated in the recess, a pin is erected on the flange plane, and is formed from a side surface and an overhanging portion that projects from the side surface. A board storage base provided with a notch in surface contact with the outer peripheral surface of the pin is installed on the flange plane with the notch in surface contact with the outer peripheral surface of the pin, and a magnetic pole sensing component of the sensor magnet is provided. A hole for inserting the pin is provided in the mounted position detection circuit board and the drive circuit board, and the pin is inserted into the hole of the position detection circuit board. The peripheral edge of the substrate is supported and fixed by the overhanging portion, a spacer is then housed inside the substrate storage base, and the peripheral edge of the substrate is sandwiched between the overhanging portion and the spacer. Further, by inserting a pin into the hole of the drive circuit board, and supporting and fixing the peripheral edge of the board with the spacer, the position detection circuit board and the drive circuit board are placed inside the board storage base. The present invention provides a sensor-driven brushless motor that is supported and fixed in a laminated manner and integrated.
[0018]
Claims 7 The described invention is electrically connected to a drive circuit board on which driving parts for a brushless motor are mounted, a flange is provided at one end of the motor housing, and a recess is provided in the flange plane. In a sensor-driven brushless motor in which an encoder plate provided with a large number of slits or depressions is fixed to a motor shaft and accommodated in the recess, a pin having a step portion formed by a small diameter portion and a large diameter portion on the flange plane Further, on the outer peripheral surface of the drive circuit board, the encoder circuit board on which the light emitting element and the light detection element are mounted, and the position detection circuit board on which the magnetic pole sensing component of the sensor magnet is mounted, A notch that is in surface contact with the outer peripheral surface of the small-diameter portion is provided, and the notch of the encoder circuit board is brought into surface contact with the outer peripheral surface of the small-diameter portion, and The peripheral edge of the substrate is supported and fixed by the step portion, and then a first spacer is inserted into the small diameter portion, and the peripheral portion of the encoder circuit board is sandwiched between the step portion and the first spacer. In addition, the sensor magnet is fixedly disposed at the end of the motor shaft in the space formed by the first spacer, and the notch of the position detection circuit board is formed on the outer peripheral surface of the small diameter portion. In addition to the surface contact, the peripheral edge of the substrate is supported and fixed by the peripheral portion of the first spacer, and then the second spacer is inserted into the small diameter portion, and the first and second spacers Sandwiching the peripheral edge portion of the position detection circuit board, and further bringing the notch of the drive circuit board into surface contact with the outer peripheral surface of the small diameter portion and supporting the peripheral edge portion of the substrate with the peripheral portion of the second spacer; By fixing, before Circuit board and the position detecting circuit board encoder, and supporting said drive circuit board in layers, there is provided a sensor-driven brushless motor, characterized by integrally fixed.
[0019]
Claims 8 The described invention is electrically connected to a drive circuit board on which driving parts for a brushless motor are mounted, a flange is provided at one end of the motor housing, and a recess is provided in the flange plane. In a sensor-driven brushless motor in which an encoder plate provided with a large number of slits or depressions is fixed to a motor shaft and stored in the recess, a pin is erected on the flange plane,
A substrate storage base formed from a side surface and a projecting portion projecting from the side surface and provided with a notch that is in surface contact with the outer peripheral surface of the pin on the projecting portion, and the notch facing the outer peripheral surface of the pin It is placed on the flange plane while being in contact with the drive circuit board, the encoder circuit board on which the light emitting element and the light detection element are mounted, and the position detection circuit board on which the magnetic pole sensing component of the sensor magnet is mounted. A hole for inserting the pin is provided, the pin is inserted into the hole of the circuit board for the encoder, and the peripheral edge of the board is supported and fixed by the overhanging portion, and then the first inside the board storage base. And holding the peripheral edge of the substrate between the overhanging portion and the first spacer,
The sensor magnet is fixedly disposed at the end of the motor shaft in the space formed by the first spacer, and a pin is inserted into the hole of the position detection circuit board, and the peripheral edge of the board is placed in the hole. The first spacer is supported and fixed, and then the second spacer is accommodated in the substrate storage table, and the peripheral portion of the position detection circuit substrate is sandwiched between the first and second spacers. The encoder circuit board, the position detection circuit board, and the drive circuit are further inserted by inserting a pin into the hole of the drive circuit board and supporting and fixing the peripheral edge of the board with the second spacer. Provided is a sensor-driven brushless motor characterized in that a substrate and a substrate are supported and fixed in a stacked manner inside the substrate storage table.
[0020]
Claims 9 The described invention is electrically connected to a drive circuit board on which drive parts for a brushless motor are mounted, a flange is provided at one end of the motor housing, and a recess is provided in the flange plane. In the sensor-driven brushless motor, the first encoder circuit board on which the light-emitting element or the light-detecting element is mounted is fixed to the recess, and then the encoder plate provided with a number of slits is fixed to the motor shaft. By housing in the recess, the light emitting element or the light detecting element and the slit are arranged face-to-face, and a pin having a step portion formed by a small diameter portion and a large diameter portion is erected on the flange plane. Further, the drive circuit board, the second encoder circuit board on which the light detection element or the light emitting element is mounted, and the magnetic pole sensing component of the sensor magnet are implemented. A cutout that is in surface contact with the outer peripheral surface of the narrow-diameter portion is provided on the outer peripheral surface of the position detection circuit board, and the notch of the second encoder circuit board is brought into surface contact with the outer peripheral surface of the thin-diameter portion. Then, by supporting and fixing the peripheral edge of the substrate with the stepped portion, the light detecting element or the light emitting element mounted on the second encoder circuit board is disposed so as to face the slit, and then, A first spacer is inserted into the small-diameter portion, and a peripheral portion of the second encoder circuit board is sandwiched between the stepped portion and the first spacer, and a space formed by the first spacer. The sensor magnet is fixedly disposed at the end of the motor shaft, and the notch of the position detection circuit board is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the peripheral edge of the substrate is arranged in the first portion. Spacers Next, a second spacer is inserted into the small-diameter portion, and a peripheral portion of the position detection circuit board is sandwiched between the first and second spacers. The notch of the drive circuit board is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the peripheral edge portion of the substrate is supported and fixed by the peripheral portion of the second spacer, whereby the second encoder circuit board and the position are fixed. The present invention provides a sensor-driven brushless motor characterized in that a detection circuit board and the driving circuit board are supported in a laminated form and fixed and integrated.
[0021]
Claims 10 The described invention is electrically connected to a drive circuit board on which drive parts for a brushless motor are mounted, a flange is provided at one end of the motor housing, and a recess is provided in the flange plane. In a sensor-driven brushless motor, a first encoder circuit board on which a light emitting element or a light detecting element is mounted is fixed to the bottom surface of the recess, and then an encoder plate provided with a number of slits is fixed to a motor shaft. The light emitting element or the light detecting element and the slit are disposed so as to face each other by being housed in the concave portion, and a pin is erected on the flange plane, and is formed from a side surface and a protruding portion protruding from the side surface. And a substrate storage base provided with a notch that is in surface contact with the outer peripheral surface of the pin at the projecting portion, and the notch is in surface contact with the outer peripheral surface of the pin. Further, the drive circuit board, the second encoder circuit board on which the light detection element or the light emitting element is mounted, and the position detection circuit board on which the magnetic pole sensing component of the sensor magnet is mounted. A hole for inserting the pin, and a pin is inserted into the hole of the second encoder circuit board, and the peripheral edge of the board is supported and fixed by the projecting part, and then the board is accommodated. A first spacer is housed inside the base, the substrate peripheral edge is sandwiched between the overhanging portion and the first spacer, and the sensor magnet is placed in a space formed by the first spacer. The motor shaft is fixedly disposed at the end, and a pin is inserted into the hole of the position detection circuit board, and the peripheral edge of the board is supported and fixed by the first spacer, and then the board is accommodated. Inside the table A second spacer is housed, the peripheral edge of the position detection circuit board is sandwiched between the first and second spacers, and a pin is inserted into the hole of the drive circuit board, and the peripheral edge of the board Is supported and fixed by the second spacer to support and fix the second encoder circuit board, the position detection circuit board, and the drive circuit board in a stacked manner inside the board storage base. Thus, a sensor-driven brushless motor characterized by being integrated with each other is provided.
[0022]
Claims 11 The invention described is to provide a brushless motor characterized in that the electrical connection between the brushless motor and each of the substrates or each of the substrates is any one of a lead wire, a parallel pin connector, and a flexible circuit board. is there.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0024]
FIG. 1 is an assembly perspective view showing an integrated structure of a sensorless drive type brushless motor and a drive circuit board according to the first embodiment of the present invention, and FIG. 2 is an assembly of the brushless motor and the drive circuit board. FIG. 3 is an enlarged perspective view of a main part showing a structure to be integrated, and FIG. 3 is a partial side sectional view of FIG.
[0025]
1 to 3, reference numeral 1 denotes a sensorless drive type brushless motor (hereinafter referred to as a motor 1 as necessary), and a flange 31 is caulked and fixed at one end of the motor housing 2. . Four holes are provided on the plane of the flange 31, and the pins 5 are fitted into the holes so that the pins 5 are erected in the axial direction of the motor shaft 4.
[0026]
Each pin 5 is thinned in a step shape from the middle in the axial direction, and a step portion 5a is formed by providing a large diameter portion 5g and a small diameter portion 5d. The step portion 5a of each pin 5 is formed so that the heights coincide on one surface perpendicular to the axial direction.
[0027]
Reference numeral 6 denotes a drive circuit board on which drive parts (driver IC, resistor, capacitor, etc.) of the sensorless drive type brushless motor 1 are mounted (hereinafter, abbreviated as the board 6 if necessary). However, the circuit pattern on the substrate 6 and the driving parts are not shown. Cutouts 6a corresponding to the number of pins 5 are provided on the outer peripheral surface of the substrate 6 in a shape (arc shape in the drawing) that matches the outer peripheral shape of the small-diameter portion 5d.
[0028]
In order to mount such a drive circuit board 6 integrally with the motor 1, first, the four notches 6 a are brought into surface contact with the outer peripheral surface of the small-diameter portion 5 d, and the drive circuit board 6 is secured by the four pins 5. The inner space is formed.
[0029]
Next, the drive circuit board 6 is slid in the axial direction of the motor shaft 4 toward the flange 31, and the peripheral edge of the drive circuit board 6 is brought into surface contact with the four step portions 5a and supported. Since the step portion 5a is in surface contact with the substrate 6, an insulating material is most preferable. However, if the step portion 5a does not contact a circuit pattern (not shown) of the substrate 6, a metallic material may be used.
[0030]
Further, the driving circuit board 6 is mounted integrally with the motor 1 by fixing the surface contact portion between the board 6 and the stepped portion 5a by a desired means such as adhesion. As described above, when forming the integrated structure of the drive circuit board 6 and the motor 1, the notch 6a and the small-diameter portion 5d are brought into close contact with each other, so that the drive circuit board 6 does not rattle after integration. Can be mounted on the motor 1.
[0031]
When the motor 1 in which the substrate 6 is integrated is used for a driving device, a resin cap 7 as shown in FIG. 2 is put on the flange 31 in order to protect the pins 5 and the driving circuit substrate 6.
[0032]
Four lead wires 8 are drawn out from the flange 31 and fixed to the drive circuit board 6 with solder or the like, and the brushless motor 1 and the drive circuit board 6 are electrically connected. On the other hand, from the drive circuit board 6, an input power supply lead wire 8 ′ for electrical connection with an external device or circuit board (not shown) is drawn out through the hole 7 a of the cap 7. These lead wires 8 and 8 'may be replaced with a parallel pin connector or a flexible circuit board.
[0033]
<Second Embodiment>
Next, a second embodiment of the present invention will be described with reference to FIGS. In the description of the second embodiment, only the differences from the first embodiment will be described. The same components as those in the first embodiment will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified. To do.
[0034]
FIG. 4 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor and a plurality of substrates on which various elements are mounted according to a second embodiment of the present invention, and FIG. 5 is the brushless motor of FIG. FIG. 6 is an enlarged perspective view of a main part showing a structure in which a substrate and a substrate are integrated and integrated, and FIG. 6 is a side sectional view when FIG. 5 is cut along a BB dashed line.
[0035]
4 to 6, reference numeral 9 denotes a sensor-driven brushless motor (hereinafter referred to as a motor 9 as necessary), and reference numeral 10 denotes a sensor magnet that is fitted and fixed to the motor shaft 4. The motor 9 shows only a part on the flange 32 side, and other parts are omitted.
[0036]
A recess 32a is provided on the plane of the flange 32, and the sensor magnet 10 is fitted and fixed to the motor shaft 4 in the space.
[0037]
Reference numeral 11 denotes a position detection circuit board on which magnetic pole detection parts such as Hall elements are mounted (hereinafter, abbreviated as board 11 if necessary). Notches 11a having a shape (arc shape in the figure) matching the outer peripheral shape of 5d are provided by the number of pins 5.
[0038]
Next, means for mounting the position detection circuit board 11 and the drive circuit board 6 integrally on the motor 1 will be described in order. First, the four notches 11a provided on the position detection circuit board 11 are brought into surface contact with the outer peripheral surface of the small diameter portion 5d, and the position detection circuit board 11 is accommodated in the inner space formed by the four pins 5. At this time, the surface side on which the magnetic pole detection component is mounted (the back side in FIG. 4) is disposed so as to face the magnetic pole surface of the sensor magnet 10.
[0039]
Next, the position detection circuit board 11 is slid in the axial direction of the motor shaft 4 toward the flange 32, and the peripheral edge of the board 11 is supported in surface contact with the four step portions 5a.
[0040]
Further, the position detection circuit board 11 is integrally mounted on the motor 9 by fixing the surface contact portion between the board 11 and the stepped portion 5a by a desired means such as adhesion. As described above, when forming the integrated structure of the position detection circuit board 11 and the motor 9, the notch 11a and the small-diameter portion 5d are in close contact with each other, so that the position detection circuit board 11 is rattled after integration. It is firmly mounted on the motor 9 without any problems.
[0041]
Further, the spacer 5b is inserted into the small diameter portion 5d from above the position detection circuit board 11, and the peripheral portion of the position detection circuit board 11 is sandwiched between the step portion 5a and the spacer 5b. Further, the drive circuit board 6 is mounted on the spacer 5b in the same manner as in the first embodiment, and the peripheral edge of the board 6 is supported and fixed by the peripheral part 5c of the spacer 5b. As described above, the two substrates 6 and 11 are integrally mounted on the motor 9 in a stacked manner via the spacer 5b.
[0042]
As in the first embodiment, a resin cap 7 (see FIG. 2) for protecting the pins 5 and the substrates 6 and 11 is put on the flange 32, but the illustration is omitted.
[0043]
As shown in any of FIGS. 4 to 6, three lead wires 8 are drawn from the flange 32 for connection to the drive circuit board 6, and the position detection circuit board 11 is electrically connected to the drive circuit board 6. Therefore, the eight lead wires 11c are drawn out. These lead wires 8, 8 'and 11c may be replaced with a parallel pin connector or a flexible circuit board.
[0044]
Since the large diameter portion 5g is in surface contact with the substrate 11 and the spacer 5b, both of the insulating materials are most preferable. However, if the insulation can be obtained from each substrate 6, 11, the large diameter portion 5g and the spacer 5b may be made of a metallic material. As a means for insulating, it is possible to prevent the large-diameter portion 5g and the spacer 5b from coming into contact with circuit patterns (not shown) on the respective term plates 6 and 11.
[0045]
<Third Embodiment>
Next, a third embodiment of the present invention will be described with reference to FIGS. In the description of the third embodiment, only the differences from the second embodiment will be described. The same components as those in the second embodiment will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified. To do.
[0046]
FIG. 7 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor according to a third embodiment of the present invention and a plurality of substrates on which various elements are mounted, and FIG. 8 is a perspective view of the brushless motor and substrate of FIG. And FIG. 9 is a side sectional view when FIG. 8 is cut along a C-C chain line.
[0047]
7 to 9, the third embodiment is different from the second embodiment in that the position detection circuit board 11 is housed and fixed in the recess 32 a of the flange 32 and the center of the position detection circuit board 11. The motor shaft 4 is extended so as to penetrate through, and the sensor magnet 10 is fitted and fixed to the end thereof.
[0048]
<Fourth Embodiment>
Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the description of the fourth embodiment, only the points different from the respective embodiments will be described, and the same components as those in the respective embodiments will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified.
[0049]
FIG. 10 is an assembled perspective view showing an integrated structure of a sensorless drive type brushless motor and a drive circuit board according to the fourth embodiment of the present invention, and FIG. 11 is a schematic view of FIG. 10 viewed from the direction of arrow a. FIG. 12 is a partial cross-sectional view when the brushless motor and the drive circuit board shown in FIG. 10 are integrated and integrated, and cut along a one-dot chain line.
[0050]
10 and 12, four holes are provided on the plane of the flange 31, and a cylindrical pin 5 ′ is fitted in each hole in the axial direction of the motor shaft 4 and is erected.
[0051]
Further, a resin substrate storage base 12 is fixedly installed on the plane of the flange 31. This substrate storage base 12 is formed in a shape having a cylindrical side surface 12a and an overhanging portion 12b protruding slightly radially inward from the inner peripheral surface of the side surface 12a, and both ends are open. It is in the shape.
[0052]
The overhanging portion 12b is provided with notches 12c at four locations, and the shape thereof is formed so as to coincide with the outer peripheral shape of the pin 5 '(in FIG. 10, an arc shape).
[0053]
The notch 12c is brought into surface contact with the pin 5 ', and the board 5 is placed on the plane of the flange 31 while all the pins 5' are housed in the board housing 12 and appropriately bonded by means such as adhesion. Fix it.
[0054]
Further, the drive circuit board 6 is housed inside the board housing table 12. A hole 6 b for inserting a pin 5 ′ is provided at a position near the peripheral edge of the drive circuit board 6. For storage in the board storage base 12, first, the pin 5 'is inserted into the hole 6b, and then the drive circuit board 6 is slid toward the flange 31 in the axial direction of the motor shaft 4, and the peripheral edge thereof is extended to the protruding part 12b. The surface contact portion (the hatched portion in FIG. 11) is appropriately fixed by a surface contact with the surface and appropriately fixed by fixing means such as adhesion. Thus, since the drive circuit board 6 is supported and fixed by the four pins 5 ′ and the board storage base 12, it can be firmly and integrally mounted on the motor 1 without causing rattling.
[0055]
When the motor 1 of this embodiment is used for a drive device, one opening of the substrate storage base 12 is covered with a lid 13 as shown in FIG. 12 in order to protect the drive circuit substrate 6 and the pin 5 ′. The lid 13 is provided with a hole for passing the lead wire 8 '(such as the hole 7a in FIG. 2), but the illustration is omitted here.
[0056]
<Fifth Embodiment>
Next, a fifth embodiment of the present invention will be described with reference to FIGS. In the description of the fifth embodiment, only the differences from the fourth embodiment will be described. The same components as those in the fourth embodiment will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified. To do.
[0057]
FIG. 13 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor according to a fifth embodiment of the present invention and a plurality of substrates on which various elements are mounted, and FIG. 14 is an assembly perspective view of the brushless motor and the substrate. It is side sectional drawing when it is integrated and integrated and cut | disconnected by the EE dashed-dotted line.
[0058]
13 and 14, the board storage base 12 is fixedly installed on the plane of the flange 32 as in the fourth embodiment, and the position detection circuit board 11 is stored and fixed therein, and the board 11 is placed on the surface of the board 11. The magnetic pole detecting component (not shown) mounted on the magnetic pole of the sensor magnet 10 is disposed so as to face the surface.
[0059]
The spacer 14 is provided with notches 14a at four locations, and the shape thereof is formed so as to coincide with the outer peripheral shape of the pin 5 ′ (in FIG. 13, an arc shape). The notch 14a is brought into surface contact with the pin 5 ′, and the spacer 14 is stored in the substrate storage base 12 so as to be stacked. The protruding portion 12b and the spacer 14 sandwich the peripheral portion of the position detection circuit board 11. . Further, the drive circuit board 6 is accommodated from above the spacer 14, and its peripheral edge is brought into surface contact with the spacer 14 and fixed, so that the position detection circuit board 11 and the drive circuit board 6 are integrated with the motor 9 in a laminated form. Can be
[0060]
The substrate storage base 12 is covered with a lid 13 as in the fourth embodiment, but the illustration is omitted.
[0061]
Since the spacer 14 is in surface contact with the two substrates 6 and 11, an insulating material is most preferable. However, the spacer 14 may be made of a metallic material as long as it can be insulated from the substrates 6 and 11. As a means for taking insulation, it is mentioned that the spacer 14 is not brought into contact with a circuit pattern (not shown) of each of the substrates 6 and 11.
[0062]
<Sixth Embodiment>
Next, a sixth embodiment of the present invention will be described with reference to FIGS. In the description of the sixth embodiment, only the differences from the second embodiment will be described. The same components as those in the second embodiment will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified. To do.
[0063]
15 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder and a plurality of substrates on which various elements are mounted according to a sixth embodiment of the present invention, and FIG. 16 is a brushless motor of FIG. FIG. 17 is an enlarged perspective view of a main part showing a structure in which a substrate and a substrate are integrated and integrated, and FIG. 17 is a side sectional view when FIG. 16 is cut along an FF chain line.
[0064]
15 to 17, reference numeral 15 denotes an encoder plate having a large number of slits 15a provided at equal intervals in the circumferential direction. The encoder plate 15 is fitted and fixed to the motor shaft 4 and stored in the recess 32a.
[0065]
16 is an encoder circuit board on which a light-emitting element and a light-detecting element that detects light intensity that changes due to the passage or reflection of light from the light-emitting element to the slit 15a as the encoder plate 15 rotates are mounted. (Hereafter, abbreviated as substrate 16 if necessary) On the outer peripheral surface of the substrate 16, notches 16a corresponding to the number of the pins 5 are formed in a shape (arc shape in the figure) that matches the outer peripheral shape of the small diameter portion 5d. Is provided. Further, a hole for penetrating the motor shaft 4 is provided in the central portion of the substrate 16.
[0066]
In order to mount the encoder circuit board 16 on the motor 9, first, the notch 16a is brought into surface contact with the outer peripheral surface of the small diameter part 5d, and the encoder circuit board 16 is formed by the four small diameter parts 5d. Place in the inner space. At this time, the light-emitting element and the light-detecting element are arranged so that the surface side (the back side in FIG. 15) faces the encoder plate 15.
[0067]
Next, the encoder circuit board 16 is slid toward the flange 32 in the axial direction of the motor shaft 4, and the peripheral portion of the board 16 is brought into surface contact with the four step portions 5a while the motor shaft 4 is inserted into the hole. And support.
[0068]
Furthermore, the circuit board 16 for encoder is integrally mounted on the motor 9 by fixing the surface contact portion between the substrate 16 and the step portion 5a by a desired means such as adhesion. As described above, in forming an integral structure of the encoder circuit board 16 and the motor 9, the notch 16a and the small-diameter portion 5d are in close contact with each other. It can be firmly mounted on the motor 9 without waking up.
[0069]
Next, the first spacer 5f is inserted into the narrow diameter portion 5d from above the encoder circuit board 16, and the peripheral portion of the encoder circuit board 16 is sandwiched between the stepped portion 5a and the first spacer 5f.
[0070]
Depending on the thickness of the first spacer 5f in the axial direction, the sensor magnet 10 is fitted and fixed to the end of the motor shaft 4 by utilizing a space formed on the circuit board 16 for encoder. Furthermore, from above, the position detection circuit board 11 is supported by surface contact with the peripheral portion 5e of the first spacer 5f and fixed.
[0071]
Further, the drive circuit board 6 is mounted on the motor 9 from above the position detection circuit board 11 by the same means as in the second embodiment.
[0072]
As described above, the three substrates 6, 11, 16 can be integrally mounted on the motor 9 in a stacked manner by the pins 5 and the spacers 5 f, 5 b.
[0073]
As in the first embodiment, the flange 32 is covered with a resin cap 7 (see FIG. 2) for protecting the pin 5 and the substrates 6, 11, and 16, but the illustration is omitted.
[0074]
The large diameter portion 5g and the spacers 5f and 5b are in surface contact with the respective substrates 6, 11 and 16, so that an insulating material is most preferable. However, if the insulating material can be insulated from the respective substrates 6, 11 and 16, a metallic material can be used. You may comprise. As a means for taking insulation, it is possible to prevent the large-diameter portion 5g and the spacers 5f and 5b from coming into contact with circuit patterns (not shown) of the respective substrates 6, 11 and 16.
[0075]
Lead wires 17 and 18 are drawn out from the circuit board 16 for the encoder, 18 is used for power supply by being fixed to the drive circuit board 6 with solder or the like, and 17 is an external device or circuit board not shown. Electrically connected. These lead wires 17 and 18 can also be replaced with parallel pin connectors or flexible circuit boards in the same manner as the lead wires 8, 8 'and 11c.
[0076]
<Seventh Embodiment>
Next, a seventh embodiment of the present invention will be described with reference to FIGS. In the description of the seventh embodiment, only the differences from the fifth and sixth embodiments will be described. The same components as those in the above-described embodiments will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified. To describe.
[0077]
18 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder according to a seventh embodiment of the present invention and a plurality of substrates on which various elements are mounted. FIG. 19 is an assembled view of FIG. It is side sectional drawing when it cut | disconnects later by GG dashed-dotted line.
[0078]
A substrate storage base 12 is fixedly installed on the plane of the flange 32, and an encoder circuit board 16, a position detection circuit board 11, and a drive circuit board 6 are sequentially stored therein. Holes 6b, 11b, and 16b for inserting pins 5 'are provided at positions near the peripheral edges of the substrates 6, 11, and 16, respectively.
[0079]
The encoder circuit board 16 is stored in the board storage stand 12 by inserting the pin 5 'into the hole 16b, and then sliding the encoder circuit board 16 in the axial direction of the motor shaft 4 toward the flange 32, and its peripheral edge. The portion is supported by being brought into surface contact with the overhanging portion 12b, and the surface contact portion is appropriately fixed by a method such as adhesion.
[0080]
Next, the first spacer 19 is stored in the substrate storage table 12 from above the encoder circuit board 16. The spacer 19 is provided with notches 19a at four locations, and the shape thereof is formed so as to coincide with the outer peripheral shape of the pin 5 ′ (in FIG. 18, an arc shape). The notch 19a is brought into surface contact with the pin 5 ', and the spacer 19 is stored inside the substrate storage base 12, and the peripheral portion of the encoder circuit board 16 is sandwiched between the overhanging portion 12b and the spacer 19 To do.
[0081]
Depending on the thickness of the first spacer 19 in the axial direction, the sensor magnet 10 is disposed in a state of being fitted and fixed to the end of the motor shaft 4 by utilizing a space formed on the circuit board 16 for encoder.
[0082]
Further, the position detection circuit board 11 is accommodated from above, and the peripheral edge of the board 11 is brought into surface contact with the first spacer 19 to be supported and fixed.
[0083]
Further, the second spacer 14 is accommodated in the substrate housing table 12 from above the position detection circuit substrate 11, and the peripheral portion of the position detection circuit substrate 11 is formed by the first spacer 19 and the second spacer 14. The drive circuit board 6 is accommodated from above, and the periphery of the board 6 is supported and fixed by the spacer 14.
[0084]
As described above, the three substrates 6, 11, 16 can be integrally mounted on the motor 9 in a stacked manner by the substrate storage table 12 and the two spacers 14, 19. Since each board | substrate 6,11,16 is supported by pin 5 'by hole 6b, 11b, 16b, it is possible to mount in the motor 9 firmly, without raising a backlash after integration.
[0085]
The sixth and seventh embodiments can be variously changed according to the technical idea, and the encoder plate 15 may be formed by changing the slit 15a into a hollow. In this case, on the circuit board 16 for encoder, the light emitting element and a light detecting element for detecting a change in light intensity from the light emitting element due to the depression are mounted.
[0086]
Since the spacers 14 and 19 are in surface contact with the respective substrates 6, 11, and 16, an insulating material is most preferable. . As a means for taking insulation, it is possible to prevent the spacers 14 and 19 from coming into contact with circuit patterns (not shown) of the substrates 6, 11 and 16.
[0087]
<Eighth Embodiment>
Next, an eighth embodiment of the present invention will be described with reference to FIGS. In the description of the eighth embodiment, only the differences from the sixth embodiment will be described. The same components as those in the sixth embodiment will be denoted by the same reference numerals, and redundant descriptions will be omitted or simplified. To do.
[0088]
20 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder according to an eighth embodiment of the present invention and a plurality of substrates on which various elements are mounted. FIG. 21 is an integrated perspective view of FIG. It is a partial sectional side view when cut | disconnecting by the HH dashed-dotted line after assembling a structure.
[0089]
20 and 21, the eighth embodiment is different from the sixth embodiment in that the light emitting element and the light detecting element are mounted on separate encoder circuit boards 16 and 20. Hereinafter, the circuit board for encoder 20 is abbreviated as the board 20 as necessary. In the present embodiment, a description will be given assuming that a light emitting element is mounted on the first encoder circuit board 20 and a light detection element is mounted on the second encoder circuit board 16.
[0090]
The first encoder circuit board 20 on which the light emitting element is mounted is fixed to the bottom surface of the recess 32 a provided in the flange 32. Further, an encoder plate 15 having a large number of slits 15a provided at equal intervals in the circumferential direction from above the first encoder circuit board 20 is fitted and fixed to the motor shaft 4 and stored in the recess 32a.
[0091]
As described above, the second encoder circuit board 16 detects light intensity that changes as the light emitted from the light emitting element passes through or does not pass through the slit 15a as the encoder plate 15 rotates. A detection element or the like is mounted.
[0092]
20 and 21, the light emitting element and the light detecting element are not shown, but the two elements are both disposed so as to face the slit 15 a and are integrated with the motor 9.
[0093]
As in the first embodiment, the flange 32 is covered with a resin cap 7 (see FIG. 2) for protecting the pin 5 and the substrates 6, 11, and 16, but the illustration is omitted.
[0094]
The eighth embodiment can be variously modified according to the technical idea. Even if a light detection element is mounted on the first encoder circuit board 20 and a light emitting element is mounted on the second encoder circuit board 16, good.
[0095]
Note that the electrical connection between the motor 9 and the drive circuit board 6, the electrical connection between the drive circuit board 6 and each of the boards 11, 16, and 20, the connection for supplying power to the drive circuit board 6, and the light Since lead wires such as A, B, and Z-phase output signal lines drawn from the encoder circuit board on the side where the detection element is mounted are in accordance with the above embodiments, description and illustration are omitted.
[0096]
<Ninth Embodiment>
Next, a ninth embodiment of the present invention will be described with reference to FIGS. In the description of the ninth embodiment, only the differences from the seventh embodiment will be described. The same components as those in the above-described embodiments will be assigned the same numbers, and overlapping descriptions will be omitted or simplified. .
[0097]
22 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder according to a ninth embodiment of the present invention and a plurality of substrates on which various elements are mounted, and FIG. 23 is an assembled view of FIG. It is a fragmentary sectional side view when it cut | disconnects later by the II dashed-dotted line.
[0098]
22 and 23, the ninth embodiment is different from the seventh embodiment in that the light emitting element and the light detecting element are mounted on separate encoder circuit boards 16 and 20. In the present embodiment, a description will be given assuming that a light emitting element is mounted on the first encoder circuit board 20 and a light detection element is mounted on the second encoder circuit board 16.
[0099]
The first encoder circuit board 20 on which the light emitting element is mounted is fixed to the bottom surface of the recess 32 a provided in the flange 32. Further, an encoder plate 15 having a large number of slits 15a provided at equal intervals in the circumferential direction from above the first encoder circuit board 20 is fitted and fixed to the motor shaft 4 and stored in the recess 32a.
[0100]
As described above, the second encoder circuit board 16 detects light intensity that changes as the light emitted from the light emitting element passes through or does not pass through the slit 15a as the encoder plate 15 rotates. A detection element or the like is mounted.
[0101]
22 and 23, the light emitting element and the light detecting element are not shown, but the two elements are both disposed so as to face the slit 15a and integrated with the motor 9.
[0102]
As in the fourth embodiment, one opening of the substrate storage base 12 is covered with a lid 13 (see FIG. 12), but the illustration is omitted.
[0103]
The ninth embodiment can be variously modified according to the technical idea. Even if the light detection element is mounted on the first encoder circuit board 20 and the light emitting element is mounted on the second encoder circuit board 16, the ninth embodiment is not limited thereto. good.
[0104]
Note that the electrical connection between the motor 9 and the drive circuit board 6, the electrical connection between the drive circuit board 6 and each of the boards 11, 16, and 20, the connection for supplying power to the drive circuit board 6, and the light Since lead wires such as A, B, and Z-phase output signal lines drawn from the encoder circuit board on the side where the detection element is mounted are in accordance with the above embodiments, description and illustration are omitted.
[0105]
Note that the present invention can be changed based on the technical idea. For example, even if the number of lead wires is changed in accordance with the change in the configuration of the motor or the components mounted on the board described in the above embodiments, The number is not limited to that described in each embodiment.
[0106]
Further, the large-diameter portion 5g and the small-diameter portion 5d of the pin 5 are not necessarily integrally formed as in the above-described embodiments. The large-diameter portion 5g is a cylindrical spacer, and the small-diameter portion 5d It may be replaced with the type to be inserted.
[0107]
【The invention's effect】
As described above, according to the present invention, the pin and spacer, or the pin and the substrate storage base and the spacer are provided on the flange side of the brushless motor, and the various substrates are integrated into the brushless motor in a laminated form. By reducing the number of parts and the number of mounting steps, the drive device can be reduced in size and cost.
[0108]
Furthermore, even if it becomes necessary to equip additional boards equipped with desired components and elements in accordance with the functions of the brushless motor and the specifications and functions of the equipment that uses the brushless motor, it is possible to easily carry out the retrofit work. .
[Brief description of the drawings]
FIG. 1 is an assembled perspective view showing an integrated structure of a sensorless drive type brushless motor and a drive circuit board according to a first embodiment of the present invention.
2 is an essential part enlarged perspective view showing a structure in which the brushless motor of FIG. 1 and a drive circuit board are integrated and integrated. FIG.
FIG. 3 is a partial side cross-sectional view when FIG. 2 is cut along an AA chain line.
FIG. 4 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor and a plurality of substrates on which various elements are mounted according to a second embodiment of the present invention.
5 is an essential part enlarged perspective view showing a structure in which the brushless motor of FIG. 4 and a substrate are integrated and integrated. FIG.
6 is a side cross-sectional view when FIG. 5 is cut along a BB dashed line. FIG.
FIG. 7 is an assembly perspective view showing an integrated structure of a sensor-driven brushless motor according to a third embodiment of the present invention and a plurality of substrates on which various elements are mounted.
8 is an enlarged perspective view of a main part showing a structure in which the brushless motor of FIG. 7 and a substrate are integrated and integrated. FIG.
FIG. 9 is a side cross-sectional view of FIG. 8 taken along the line C-C.
FIG. 10 is an assembled perspective view showing an integrated structure of a sensorless drive type brushless motor and a drive circuit board according to a fourth embodiment of the present invention.
FIG. 11 is a schematic plan view when FIG. 10 is viewed from the direction of arrow a.
12 is a partial sectional side view when the brushless motor and the drive circuit board shown in FIG. 10 are integrated and integrated, and cut along a one-dot chain line.
FIG. 13 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor according to a fifth embodiment of the present invention and a plurality of substrates on which various elements are mounted.
FIG. 14 is a side sectional view when the brushless motor and the substrate are integrated by being integrated and cut along a dashed line EE.
FIG. 15 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder and a plurality of substrates on which various elements are mounted according to a sixth embodiment of the present invention.
16 is an essential part enlarged perspective view showing a structure in which the brushless motor of FIG. 15 and a substrate are integrated and integrated. FIG.
FIG. 17 is a side cross-sectional view of FIG. 16 taken along the FF dashed line.
FIG. 18 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder and a plurality of substrates on which various elements are mounted according to a seventh embodiment of the present invention.
FIG. 19 is a side cross-sectional view taken along a dashed line GG after assembling FIG. 18;
FIG. 20 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder according to an eighth embodiment of the present invention and a plurality of substrates on which various elements are mounted.
FIG. 21 is a partial side cross-sectional view of the integrated structure of FIG.
FIG. 22 is an assembled perspective view showing an integrated structure of a sensor-driven brushless motor with an encoder and a plurality of substrates on which various elements are mounted according to a ninth embodiment of the present invention.
FIG. 23 is a partial cross-sectional side view taken along the II-dot chain line after assembling FIG. 22;
[Explanation of symbols]
1 ... Sensorless drive type brushless motor
2 ... Motor housing
31, 32 ... Flange
4 ... Motor shaft
5, 5 '... pin
6 ... Drive circuit board
7 ... Cap
9 ... Sensor-driven brushless motor
10 ... Sensor magnet
11 ... Position detection circuit board
12 ... Board storage stand
13 ... lid
14, 19 ... Spacer
15 ... Encoder plate
16, 20 ... Circuit board for encoder

Claims (11)

複数の基板と電気的又は物理的に接続されると共に、モータハウジングの片側端部にフランジが設けられたブラシレスモータにおいて、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設すると共に、前記基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、１枚目の基板に設けた切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定し、次に、前記細径部に第１のスペーサを挿入し、前記段部と前記第１のスペーサとで前記１枚目の基板周縁部を挟持すると共に、更に、２枚目の基板に設けた切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記第１のスペーサの周辺部で支持、固定し、次に、前記細径部に第２のスペーサを挿入し、前記第１及び第２のスペーサとで前記２枚目の基板周縁部を挟持し、以後、前記２枚目の基板の固定構造と同様な、前記細径部にスペーサを挿入すると共に、前記切り欠きを前記細径部外周面に面接触させ、更に、基板周縁部を前記スペーサ周辺部で支持、固定するという構造を、残り全ての枚数の基板で順次繰り返すことにより、前記複数の基板を積層状に支持、固定して一体化することを特徴とするブラシレスモータ。In a brushless motor that is electrically or physically connected to a plurality of substrates and is provided with a flange at one end of a motor housing, a step portion is formed by a small diameter portion and a large diameter portion on the flange plane. A pin is erected, and a notch is provided on the outer peripheral surface of the substrate so as to be in surface contact with the outer peripheral surface of the small-diameter portion. The peripheral edge of the substrate is supported and fixed by the step portion, and then a first spacer is inserted into the small diameter portion, and the first substrate is formed by the step portion and the first spacer. In addition to sandwiching the periphery, the notch provided in the second substrate is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the periphery of the substrate is supported and fixed by the periphery of the first spacer. Next, a second spacer is inserted into the small diameter portion, The peripheral edge of the second substrate is sandwiched between the first and second spacers. After that, a spacer is inserted into the narrow-diameter portion similar to the fixing structure of the second substrate, and the cutting is performed. The plurality of substrates are stacked by sequentially repeating the structure in which the notch is brought into surface contact with the outer peripheral surface of the small-diameter portion and the peripheral portion of the substrate is supported and fixed by the peripheral portion of the spacer on all the remaining number of substrates. A brushless motor characterized by being supported and fixed in a single shape. 基板と電気的又は物理的に接続されると共に、モータハウジングの片側端部にフランジが設けられたブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、更に、前記基板に前記ピンの挿入用の穴を設け、その穴に前記ピンを挿入し、前記張出部で前記基板の周縁部を支持、固定することによって、前記基板を一体化することを特徴とするブラシレスモータ。In a brushless motor that is electrically or physically connected to a substrate and is provided with a flange at one end of a motor housing, a pin is erected on the flange plane, and a side surface and a protruding portion that protrudes from the side surface And a board storage base provided with a notch that is in surface contact with the outer peripheral surface of the pin at the projecting portion, and is placed on the flange plane while the notch is in surface contact with the outer peripheral surface of the pin. Further, the substrate is integrated by providing a hole for inserting the pin in the substrate, inserting the pin into the hole, and supporting and fixing the peripheral portion of the substrate with the overhanging portion. Brushless motor characterized by 複数の基板と電気的又は物理的に接続されると共に、モータハウジングの片側端部にフランジが設けられたブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、更に、前記基板に前記ピンの挿入用の穴を設け、１枚目の基板の穴に前記ピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、In a brushless motor that is electrically or physically connected to a plurality of substrates and has a flange at one end of the motor housing, a pin is erected on the flange plane, and a side surface and a tension protruding from the side surface are provided. A board storage base formed from a protruding portion and provided with a notch that is in surface contact with the outer peripheral surface of the pin on the overhanging portion, on the flange plane while bringing the notch into surface contact with the outer peripheral surface of the pin. And further providing a hole for inserting the pin in the substrate, inserting the pin into the hole in the first substrate, and supporting and fixing the peripheral portion of the substrate with the overhanging portion,
次に、前記基板収納台の内部に第１のスペーサを収納して、前記張出部と前記第１のスペーサとで前記基板周縁部を挟持すると共に、更に、２枚目の基板の穴に前記ピンを挿入すると共に、その基板周縁部を前記第１のスペーサで支持、固定し、次に、前記基板収納台の内部に第２のスペーサを収納して、前記第１及び第２のスペーサとで前記２枚目の基板周縁部を挟持し、以後、前記２枚目の基板の固定構造と同様な、前記基板収納台の内部にスペーサを収納すると共に、前記穴に前記ピンを挿入し、基板周縁部を前記スペーサで支持、固定するという構造を、残り全ての枚数の基板で順次繰り返すことによって、前記複数の基板を前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするブラシレスモータ。Next, a first spacer is stored in the substrate storage table, the peripheral edge of the substrate is sandwiched between the overhanging portion and the first spacer, and further, in the hole of the second substrate. The pins are inserted, and the peripheral edge of the substrate is supported and fixed by the first spacer. Next, the second spacer is accommodated in the substrate accommodating table, and the first and second spacers are accommodated. And sandwiching the peripheral edge of the second substrate, and thereafter, storing a spacer in the substrate storage table and inserting the pin into the hole, similar to the fixing structure of the second substrate. The substrate peripheral portion is supported and fixed by the spacer, and the plurality of substrates are supported and fixed in a stacked manner inside the substrate storage base by sequentially repeating the structure for all remaining substrates. Brushless motor characterized by ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、モータシャフトにセンサマグネットを固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設すると共に、前記センサマグネットの磁極感知用部品が実装された位置検出回路基板と前記駆動回路基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、前記位置検出回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定し、次に、前記細径部にスペーサを挿入し、前It is electrically connected to a drive circuit board on which driving parts for the brushless motor are mounted, a flange is provided at one end of the motor housing, a recess is provided in the flange plane, and a sensor magnet is provided on the motor shaft. In the sensor-driven brushless motor that is fixed and accommodated in the concave portion, a pin having a stepped portion formed by a small diameter portion and a large diameter portion is erected on the flange plane, and the magnetic pole sensing component of the sensor magnet Is provided on the outer peripheral surface of the position detection circuit board and the drive circuit board, and the notch of the position detection circuit board is provided on the outer peripheral surface of the thin diameter portion. In addition to the surface contact, the peripheral edge of the substrate is supported and fixed by the stepped portion, and then a spacer is inserted into the small diameter portion. 記段部と前記スペーサとで前記基板周縁部を挟持し、更に、前記駆動回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記スペーサの周辺部で支持、固定することによって、前記位置検出回路基板と前記駆動回路基板とを積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータ。The substrate peripheral portion is sandwiched between the stepped portion and the spacer, and the notch of the drive circuit substrate is brought into surface contact with the outer peripheral surface of the small diameter portion, and the peripheral portion of the substrate is supported by the peripheral portion of the spacer. The sensor-driven brushless motor is characterized in that the position detection circuit board and the drive circuit board are laminated and fixed to be integrated by fixing. ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられたセンサレス駆動型ブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、更に、前記駆動回路基板に前記ピンの挿入用の穴を設け、その穴に前記ピンを挿入し、前記張出部で前記基板の周縁部を支持、固定することによって、前記駆動回路基板を一体化することを特徴とするセンサレス駆動型ブラシレスモータ。In a sensorless drive type brushless motor that is electrically connected to a drive circuit board on which drive parts for a brushless motor are mounted and has a flange at one end of the motor housing, a pin is erected on the flange plane. In addition, a substrate storage base that is formed of a side surface and a projecting portion that projects from the side surface, and that has a notch that is in surface contact with the outer peripheral surface of the pin, is provided on the outer peripheral surface of the pin. Is installed on the flange plane while making surface contact, and further, a hole for inserting the pin is provided in the drive circuit board, the pin is inserted into the hole, and the peripheral portion of the board is formed by the overhanging portion. A sensorless driving type brushless motor, wherein the driving circuit board is integrated by supporting and fixing. ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、モータシャフトにセンサマグネットを固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面にピンを立設すると共に、側面と前記側面から張り出した張出部とから形成され且つ前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面上に設置し、前記センサマグネットの磁極感知用部品が実装された位置検出回路基板と前記駆動回路基板に、前記ピンの挿入用の穴を設け、前記位置検出回路基板の穴にピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、It is electrically connected to a drive circuit board on which driving parts for the brushless motor are mounted, a flange is provided at one end of the motor housing, a recess is provided in the flange plane, and a sensor magnet is provided on the motor shaft. In the sensor-driven brushless motor in which the pin is fixed and accommodated in the recess, a pin is erected on the flange plane, and is formed from a side surface and an overhang portion projecting from the side surface, and the pin outer periphery is formed on the overhang portion. Position detection where a board storage base provided with a notch that is in surface contact with the surface is placed on the flange plane while the notch is in surface contact with the outer peripheral surface of the pin and the magnetic pole sensing component of the sensor magnet is mounted The circuit board and the drive circuit board are provided with holes for inserting the pins, the pins are inserted into the holes of the position detection circuit board, and the front The substrate peripheral portion is extended portion supporting and fixing,
次に、前記基板収納台の内部にスペーサを収納して、前記張出部と前記スペーサとで前記基板周縁部を挟持し、更に、前記駆動回路基板の穴にピンを挿入すると共に、その基板周縁部を前記スペーサで支持、固定することによって、前記位置検出回路基板と前記駆動回路基板とを前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータ。Next, a spacer is stored inside the substrate storage base, the peripheral edge of the substrate is sandwiched between the protruding portion and the spacer, and a pin is inserted into the hole of the drive circuit substrate, and the substrate The position detecting circuit board and the driving circuit board are supported and fixed in a stacked manner inside the board storage base by supporting and fixing a peripheral edge with the spacer, and the sensor is integrated. Drive type brushless motor. ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、多数のスリット又は窪みが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設し、更に、前記駆動回路基板と、発光素子及び光検出素子が実装されたエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、前記エンコーダ用回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定し、次に、前記細径部に第１のスペーサを挿入し、前記段部と前記第１のスペーサとで前記エンコーダ用回路基板の周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、前記位置検出回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記第１のスペーサの周辺部で支持、固定し、次に、前記細径部に第２のスペーサを挿入し、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、前記駆動回路基板の切り欠きを前記細径部外周面に面接触させると共にその基板周縁部を前記第２のスペーサの周辺部で支持、固定することによって、前記エンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータ。It is electrically connected to a drive circuit board on which drive parts for the brushless motor are mounted, a flange is provided at one end of the motor housing, a recess is provided in the flange plane, and a number of slits or depressions are provided. In the sensor-driven brushless motor in which the encoder plate provided with is fixed to the motor shaft and accommodated in the recess, a pin having a step portion formed by a small diameter portion and a large diameter portion is erected on the flange plane. Further, the outer periphery of the small-diameter portion on the outer peripheral surface of the drive circuit board, the encoder circuit board on which the light emitting element and the light detection element are mounted, and the position detection circuit board on which the magnetic pole sensing component of the sensor magnet is mounted. A notch that is in surface contact with the surface is provided, and the notch of the circuit board for encoder is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the peripheral edge of the substrate is Supporting and fixing at the stepped portion, and then inserting a first spacer into the narrow-diameter portion, sandwiching the peripheral portion of the encoder circuit board between the stepped portion and the first spacer, and The sensor magnet is fixedly disposed at the end of the motor shaft in a space formed by the first spacer, and the notch of the position detection circuit board is brought into surface contact with the outer peripheral surface of the small diameter portion. The peripheral edge portion of the substrate is supported and fixed by the peripheral portion of the first spacer, and then the second spacer is inserted into the small diameter portion, and the position detection circuit is connected to the first and second spacers. By sandwiching the peripheral portion of the substrate, and further bringing the notch of the drive circuit substrate into surface contact with the outer peripheral surface of the small diameter portion and supporting and fixing the peripheral portion of the substrate with the peripheral portion of the second spacer For the encoder Sensor-driven brushless motor, characterized in that road substrate and the position detecting circuit board, and support the said drive circuit board in layers, to integrate fixed. ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、While electrically connected to the drive circuit board on which the brushless motor drive components are mounted, モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けると共に、多数のスリット又は窪みが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納したセンサ駆動型ブラシレスモータにおいて、前記フランジ平面にピンを立設し、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面に設置し、更に、前記駆動回路基板と、発光素子及び光検出素子が実装されたエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板に前記ピンの挿入用の穴を設け、エンコーダ用回路基板の穴にピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、次に、前記基板収納台の内部に第１のスペーサを収納して、前記張出部と前記第１のスペーサとで前記基板周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、位置検出回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第１のスペーサで支持、固定し、次に、前記基板収納台の内部に第２のスペーサを収納して、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、駆動回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第２のスペーサで支持、固定することによって、前記エンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータ。A sensor-driven brushless in which a flange is provided at one end of the motor housing, a recess is provided in the flange plane, and an encoder plate provided with a number of slits or depressions is fixed to the motor shaft and stored in the recess In the motor, the substrate storage in which a pin is erected on the flange plane, and is formed of a side surface and an overhang portion projecting from the side surface, and the overhang portion is provided with a notch that is in surface contact with the outer peripheral surface of the pin. A base is installed on the flange plane while the notch is in surface contact with the outer peripheral surface of the pin, and further, the driving circuit board, an encoder circuit board on which the light emitting element and the light detecting element are mounted, and a sensor magnet A hole for inserting the pin is provided in the position detection circuit board on which the magnetic pole sensing component is mounted, and the pin is inserted into the hole of the encoder circuit board. The substrate peripheral portion is supported and fixed by the overhang portion, and then a first spacer is accommodated in the substrate storage base, and the substrate peripheral portion is formed by the overhang portion and the first spacer. The sensor magnet is fixed to the end of the motor shaft in the space formed by the first spacer, and a pin is inserted into the hole of the position detection circuit board. The peripheral edge of the substrate is supported and fixed by the first spacer, and then the second spacer is accommodated in the substrate accommodating table, and the position detection circuit substrate is coupled with the first and second spacers. The encoder circuit board and the position detection circuit board are sandwiched between the encoder circuit board and the position detection circuit board by inserting a pin into the hole of the drive circuit board and supporting and fixing the board peripheral part with the second spacer. And before A drive circuit board inside the substrate storage base, support in layers, sensor-driven brushless motor, characterized by integrally fixed. ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けられたセンサ駆動型ブラシレスモータにおいて、発光素子又は光検出素子が実装された第１のエンコーダ用回路基板を前記凹部に固定し、次に多数のスリットが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納することにより、前記発光素子又は光検出素子と、前記スリットとを面対向配置すると共に、前記フランジ平面に、細径部及び太径部によって段部が形成されたピンを立設し、更に、前記駆動回路基板と、光検出素子又は発光素子が実装された第２のエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板の外周面に、前記細径部の外周面と面接触する切り欠きを設け、前記第２のエンコーダ用回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記段部で支持、固定することにより、前記第２のエンコーダ用回路基板に実装された光検出素子又は発光素子が前記スリットと面対向するように配置し、次に、前記細径部に第１のスペーサを挿入し、前記段部と前記第１のスペーサとで前記第２のエンコーダ用回路基板の周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、前記位置検出回路基板の切り欠きを前記細径部外周面に面接触させると共に、その基板周縁部を前記第１のスペーサの周辺部で支持、固定し、次に、前記細径部に第２のスペーサを挿入し、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、前記駆動回路基板の切り欠きを前記細径部外周面に面接触させると共にその基板周縁部を前記第２のスペーサの周辺部で支持、固定することによって、前記第２のエンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータ。A sensor-driven brushless motor that is electrically connected to a drive circuit board on which driving parts for the brushless motor are mounted, has a flange at one end of the motor housing, and is further provided with a recess in the flange plane. The first encoder circuit board on which the light emitting element or the light detecting element is mounted is fixed to the recess, and then the encoder plate provided with a plurality of slits is fixed to the motor shaft and stored in the recess. Accordingly, the light emitting element or the light detecting element and the slit are arranged face to face, and a pin having a step portion formed by a small diameter portion and a large diameter portion is erected on the flange plane, and the driving is further performed. Position detection where a circuit board, a second encoder circuit board on which a light detection element or a light emitting element is mounted, and a magnetic pole sensing component of a sensor magnet are mounted A notch that is in surface contact with the outer peripheral surface of the small-diameter portion is provided on the outer peripheral surface of the circuit board, and the notch of the second encoder circuit board is brought into surface contact with the outer peripheral surface of the thin-diameter portion, and the peripheral edge of the substrate By supporting and fixing the portion at the stepped portion, the light detecting element or the light emitting element mounted on the second encoder circuit board is disposed so as to face the slit, and then the small diameter portion The first spacer is inserted into the space, the peripheral portion of the second encoder circuit board is sandwiched between the stepped portion and the first spacer, and the sensor is placed in the space formed by the first spacer. A magnet is fixedly disposed at the end of the motor shaft, and the notch of the position detection circuit board is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the peripheral edge of the substrate is arranged around the first spacer. Supported by department Next, a second spacer is inserted into the narrow-diameter portion, the peripheral edge portion of the position detection circuit board is sandwiched between the first and second spacers, and the driving circuit board is further cut. The notch is brought into surface contact with the outer peripheral surface of the small-diameter portion, and the peripheral portion of the substrate is supported and fixed by the peripheral portion of the second spacer, whereby the second encoder circuit substrate and the position detection circuit substrate, and A sensor-driven brushless motor, wherein the drive circuit board is supported and fixed in a laminated manner and integrated. ブラシレスモータの駆動用部品が実装された駆動回路基板と電気的に接続されると共に、モータハウジングの片側端部にフランジが設けられ、更に、前記フランジ平面に凹部を設けられたセンサ駆動型ブラシレスモータにおいて、発光素子又は光検出素子が実装された第１のエンコーダ用回路基板を前記凹部底面に固定し、次に多数のスリットが設けられたエンコーダ板をモータシャフトに固定して前記凹部に収納することにより、前記発光素子又は光検出素子と、前記スリットとを面対向配置すると共に、前記フランジ平面にピンを立設し、側面と前記側面から張り出した張出部とから形成され、且つ、前記張出部に前記A sensor-driven brushless motor that is electrically connected to a drive circuit board on which driving parts for the brushless motor are mounted, has a flange at one end of the motor housing, and is further provided with a recess in the flange plane. The first encoder circuit board on which the light emitting element or the light detecting element is mounted is fixed to the bottom surface of the recess, and then the encoder plate provided with a plurality of slits is fixed to the motor shaft and stored in the recess. Accordingly, the light emitting element or the light detecting element and the slit are disposed so as to face each other, a pin is erected on the flange plane, and is formed from a side surface and an overhanging portion protruding from the side surface, and In the overhang ピン外周面と面接触する切り欠きを設けた基板収納台を、前記ピン外周面に前記切り欠きを面接触させつつ前記フランジ平面に設置し、更に、前記駆動回路基板と、光検出素子又は発光素子が実装された第２のエンコーダ用回路基板と、センサマグネットの磁極感知用部品が実装された位置検出回路基板に、前記ピンの挿入用の穴を設け、前記第２のエンコーダ用回路基板の穴にピンを挿入すると共に、前記張出部でその基板周縁部を支持、固定し、次に、前記基板収納台の内部に第１のスペーサを収納して、前記張出部と前記第１のスペーサとで前記基板周縁部を挟持すると共に、前記第１のスペーサによって形成される空間内に前記センサマグネットを前記モータシャフトの端部に固定して配置し、更に、位置検出回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第１のスペーサで支持、固定し、次に、前記基板収納台の内部に第２のスペーサを収納して、前記第１及び第２のスペーサとで前記位置検出回路基板の周縁部を挟持すると共に、更に、駆動回路基板の穴にピンを挿入すると共に、その基板周縁部を前記第２のスペーサで支持、固定することによって、前記第２のエンコーダ用回路基板と前記位置検出回路基板、及び前記駆動回路基板とを前記基板収納台の内部で、積層状に支持、固定して一体化することを特徴とするセンサ駆動型ブラシレスモータ。A substrate storage base provided with a notch that is in surface contact with the outer peripheral surface of the pin is installed on the flange plane while bringing the notch into surface contact with the outer peripheral surface of the pin, and further, the drive circuit substrate and the light detecting element or light emitting device A hole for inserting the pin is provided in the second encoder circuit board on which the element is mounted and the position detection circuit board on which the magnetic pole sensing component of the sensor magnet is mounted. A pin is inserted into the hole, and the periphery of the substrate is supported and fixed by the overhanging portion. Next, a first spacer is housed in the substrate storage base, and the overhanging portion and the first The peripheral edge of the substrate is sandwiched by the spacer, and the sensor magnet is fixedly disposed at the end of the motor shaft in the space formed by the first spacer. Pin to In addition, the peripheral edge of the substrate is supported and fixed by the first spacer, and then the second spacer is accommodated in the substrate accommodating table, and the first and second spacers The peripheral edge portion of the position detection circuit board is sandwiched, and further, a pin is inserted into the hole of the drive circuit board, and the peripheral edge portion of the board is supported and fixed by the second spacer. A sensor-driven brushless motor characterized in that a circuit board, the position detection circuit board, and the drive circuit board are integrated and supported in a stacked manner inside the board storage base. 請求項１乃至１０記載のブラシレスモータにおいて、ブラシレスモータと前記各基板、又は前記各基板間の電気的な接続を、リード線、並列ピンコネクタ、フレキシブル回路基板の何れかとすることを特徴とするブラシレスモータ。11. The brushless motor according to claim 1, wherein the electrical connection between the brushless motor and each of the substrates or between the substrates is any one of a lead wire, a parallel pin connector, and a flexible circuit substrate. motor.
JP2002186371A 2002-06-26 2002-06-26 Board-integrated brushless motor Expired - Fee Related JP4191437B2 (en)

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