JP3889228B2

JP3889228B2 - motor

Info

Publication number: JP3889228B2
Application number: JP2001013267A
Authority: JP
Inventors: 要一松山; 忠史安達
Original assignee: Asmo Co Ltd
Current assignee: Asmo Co Ltd
Priority date: 2001-01-22
Filing date: 2001-01-22
Publication date: 2007-03-07
Anticipated expiration: 2021-01-22
Also published as: JP2002218699A

Description

【０００１】
【発明の属する技術分野】
本発明はモータに係り、詳しくは、減速機構と制御回路基板とを一体に収容したモータに関するものである。
【０００２】
【従来の技術】
車両用パワーウインド装置の駆動源には、モータ部と該モータ部の回転を減速する減速部とが一体に組み付けられた減速機構付きモータが一般に用いられている。モータ部は電機子やマグネット等を収容するヨークハウジングを備える一方、減速部は減速機構を収容する樹脂製のギヤハウジングを備え、ヨークハウジングとギヤハウジングは互いに開口部が対向するようにネジにより連結固定される。このようなモータには、更にモータ部の回転を制御するための制御回路基板を一体に収容したものがある。即ち、ギヤハウジングの一部に制御回路基板を収容する基板ハウジング部が形成されており、該基板ハウジング部の開口部から制御回路基板が収容され固定されている。
【０００３】
又、前記ギヤハウジングは、外部から水等の液体や塵埃の浸入を防止すべく開口部を密閉する必要があるため、該開口部を樹脂製の蓋部材にて塞いでハウジングに固定するようにしている。又、このような蓋部材とギヤハウジングの開口部との間には、該蓋部材を取り付けた状態において弾性変形するシール部材が介在され、開口部から液体や塵埃の浸入を確実に防止している。
【０００４】
【発明が解決しようとする課題】
ところで、上記したシール部材を蓋部材に嵌合させた場合、該蓋部材の取付時において脱落する場合があり、シール部材が脱落しないように蓋部材を取り付ける作業は煩雑である。又、シール部材は蓋部材に対して固定されていないので、蓋部材の固定時において例えばシール部材の一部が飛び出し、その部分の密閉状態が損なわれてしまう。そのため、従来より、シール部材は蓋部材に対して接着剤により確実に固定するようにしていた。
【０００５】
しかしながら、シール部材を接着剤にて固定する作業は煩雑な作業であって、作業性が悪い。しかも、接着剤が乾くまでに時間を要する。そのため、モータの組付け工数が増大するという問題がある。
【０００６】
本発明は、上記問題点を解決するためになされたものであって、その目的は、ハウジングの収容部の開口部と該開口部を塞ぐ蓋部材との間にシール部材を有するモータであって、蓋部材に対するシール部材の固定を簡単かつ確実にすることにある。
【０００７】
【課題を解決するための手段】
上記問題点を解決するため、請求項１に記載の発明は、回転軸を回転させるモータ部と、該回転軸の回転を減速するための減速機構及び該モータ部の回転を制御する制御回路基板を収容するギヤハウジングを備えた減速部とが一体に組み付けられ、該ギヤハウジングの収容部の開口部を塞ぐ蓋部材を備えたモータであって、前記蓋部材は、所定位置に係止部を有するとともに、その係止部と係止するように該蓋部材に対して一体成形され前記開口部を密閉状態にする弾性樹脂よりなるシール部材を備え、前記シール部材は、前記ギヤハウジングの前記開口部が当接する前記蓋部材の周縁に形成され、前記係止部は、前記蓋部材の周縁の所定位置に設けられ前記シール部材の一部が充填される孔と、その孔に設けられ該孔内に充填されるシール部材に埋設されて、充填されたシール部材が該孔内から抜け出さないようにする埋設部とから構成されており、前記モータ部と前記減速部とが一体に組み付けられた状態において、前記埋設部と前記ギヤハウジングの前記開口部との間には前記シール部材が介在される。
【０００８】
請求項２に記載の発明は、回転軸を回転可能に収容するヨークハウジングを備えたモータ部と、該回転軸の回転を減速するための減速機構及び該モータ部の回転を制御する制御回路基板を収容するギヤハウジングを備えた減速部とが一体に組み付けられ、該ギヤハウジングの収容部の開口部を塞ぐとともに、該開口部と前記ヨークハウジングの開口部との間に介在される部分を有する蓋部材を備えたモータであって、前記蓋部材は、所定位置に係止部を有するとともに、その係止部と係止するように該蓋部材に対して一体成形され前記両開口部を密閉状態にする弾性樹脂よりなるシール部材を備え、前記シール部材は、前記ギヤハウジングの前記開口部が当接する前記蓋部材の周縁に形成され、前記係止部は、前記蓋部材の周縁の所定位置に設けられ前記シール部材の一部が充填される孔と、その孔に設けられ該孔内に充填されるシール部材に埋設されて、充填されたシール部材が該孔内から抜け出さないようにする埋設部とから構成されており、前記モータ部と前記減速部とが一体に組み付けられた状態において、前記埋設部と前記ギヤハウジングの前記開口部との間には前記シール部材が介在される。
【０００９】
請求項３に記載の発明は、請求項１又は２に記載のモータにおいて、前記孔は、前記モータ部と前記減速部との組み付け方向に延設される。
請求項４に記載の発明は、請求項１〜３のいずれか１項に記載のモータにおいて、前記係止部は、前記蓋部材の周囲に沿って複数箇所に設けられる。
【００１０】
請求項５に記載の発明は、請求項１〜４のいずれか１項に記載のモータにおいて、前記係止部は、前記蓋部材の一側面及び他側面を連通する連通孔をさらに含んで構成され、該蓋部材の一側面に成形する前記シール部材と他側面に成形する前記シール部材とをその連通孔を介して連結するようにした。
【００１１】
請求項６に記載の発明は、請求項１〜５のいずれか１項に記載のモータにおいて、前記ギヤハウジングは、前記回転軸を収容する回転軸収容部と前記制御回路基板を収容する基板収容部と同一の開口部を有し、前記蓋部材は、その開口部を塞ぐものである。
【００１２】
（作用）
請求項１に記載の発明によれば、蓋部材は所定位置に係止部を有し、弾性樹脂よりなるシール部材はその係止部と係止するように該蓋部材に対して一体成形されギヤハウジングの開口部を密閉状態にする。従って、シール部材は蓋部材に対して一体に成形されるので、該シール部材を蓋部材に固定するといった作業が必要なく簡単に固定できる。しかも、シール部材は蓋部材に設けた係止部と係止するので、該シール部材を蓋部材に対して確実に固定できる。
【００１３】
請求項２に記載の発明によれば、蓋部材は所定位置に係止部を有し、弾性樹脂よりなるシール部材はその係止部と係止するように該蓋部材に対して一体成形されギヤハウジング及びヨークハウジングの両開口部を密閉状態にする。従って、シール部材は蓋部材に対して一体に成形されるので、該シール部材を蓋部材に固定するといった作業が必要なく簡単に固定できる。しかも、シール部材は蓋部材に設けた係止部と係止するので、該シール部材を蓋部材に対して確実に固定できる。
【００１４】
請求項１及び２に記載の発明によれば、係止部は、シール部材の一部が充填される孔と、その孔に設けられ該孔内に充填されるシール部材に埋設される埋設部とからなり、孔内に充填されたシール部材が埋設部に係止することにより、シール部材は蓋部材に対して確実に固定される。このようにすれば、係止部を簡単に構成できる。
請求項４に記載の発明によれば、係止部は蓋部材の周囲に沿って複数箇所に設けられるので、シール部材を蓋部材に対して確実に固定できる。
【００１５】
請求項５に記載の発明によれば、係止部は、蓋部材の一側面及び他側面を連通する連通孔よりなり、該蓋部材の一側面に成形するシール部材と他側面に成形するシール部材とがその連通孔を介して連結することにより、シール部材は蓋部材に対して確実に固定される。このようにすれば、係止部を簡単に構成できる。
【００１６】
請求項６に記載の発明によれば、蓋部材は、回転軸を収容する回転軸収容部と制御回路基板を収容する基板収容部と同一の開口部を塞ぐものである。従って、蓋部材を両収容部で共用できるので、部品数が少なくてすむ。
【００１７】
【発明の実施の形態】
以下、本発明を具体化した一実施形態を図面に従って説明する。
図１は、本実施形態の減速機構付きモータ１を示す。図２は、モータ１の分解図、図３は、図１のＡ方向から見たモータ１の分解図である。
【００１８】
図１〜図３に示すように、モータ１は、車両用パワーウインド装置の駆動源として用いられる。モータ１は、モータ部２と該モータ部２の回転を減速する減速部３とが一体に組み付けられて構成されている。
【００１９】
モータ部２は、図３に示すように、互いに平行な一対の平面部４ａ及び両平面部４ａの端部間をそれぞれ繋ぐ一対の円弧部４ｂを備えた有底扁平円筒状のヨークハウジング４を有している。尚、平面部４ａの平面方向は、モータ１の扁平方向である。ヨークハウジング４は磁性材料よりなり、その内側面には複数個のマグネット５が所定位置に固着され、該マグネット５の内側では電機子６が回転可能に収容されてる。電機子６は回転軸７を有し、該回転軸７の基端部はヨークハウジング４の底部に設けられた軸受８により回転可能に支持されている。回転軸７の先端部側には整流子９が固着されている。
【００２０】
ヨークハウジング４の開口部４ｃには、ブラシホルダ１０が嵌挿される。ブラシホルダ１０には、前記整流子９に摺接する一対のブラシ１１が保持されている。ブラシホルダ１０の中央部には軸受１２が保持されており、該軸受１２は前記回転軸７の先端部側を回転可能に支持している。このブラシホルダ１０は、蓋部材１３に一体に形成されている。
【００２１】
蓋部材１３は樹脂よりなり、ヨークハウジング４の開口部４ｃ及び後述するギヤハウジング２１の開口部２１ｅ間に介在され、両開口部４ｃ，２１ｅを塞ぐ。蓋部材１３には前記一対のブラシ１１にそれぞれ電気的に接続される一対の接続片１４がモータ１の軸線Ｌ１方向（モータ部２の組付け方向）に平行に延びている。このような蓋部材１３には、エラストマ樹脂よりなるシール部材１５がヨークハウジング４の開口部４ｃ及びギヤハウジング２１の開口部２１ｅを密閉するような位置に２色成形により一体に成形されている。
【００２２】
ここで、この蓋部材１３は、ヨークハウジング４の開口部４ｃ及びギヤハウジング２１の開口部２１ｅの一部を密閉する第１の部分１３ａ（図３において右側）とし、ギヤハウジング２１の開口部２１ｅの残りの部分を密閉する第２の部分１３ｂとしている。
【００２３】
蓋部材１３の第１の部分１３ａには、図５に示すように、ヨークハウジング４の開口部４ｃ及びギヤハウジング２１の開口部２１ｅの一部が当接する部位であるブラシホルダ１０の周囲及び外周縁の所定位置に複数個の連通孔１３ｃ，１３ｄが形成されている（図６（ａ）に連通孔１３ｃのみ図示）。そして、蓋部材１３におけるヨークハウジング４側の面１３ｘ及びギヤハウジング２１側の面１３ｙの略全面にシール部材１５が一体成形され、両面１３ｘ，１３ｙに成形されたシール部材１５は各連通孔１３ｃ，１３ｄを介して連結している（図７（ａ）に連通孔１３ｃのみ図示）。この場合、このような連結部分を設けることにより、蓋部材１３に対するシール部材１５の移動及び剥離を防止して該シール部材１５を蓋部材１３に確実に固定するようになっている。
【００２４】
又、蓋部材１３の第２の部分１３ｂには、図５に示すように、ギヤハウジング２１の開口部２１ｅの残りの部分が当接する外周縁の所定位置に複数個の連通孔１３ｅが形成されている（図６（ｂ）〜（ｄ）参照）。この連通孔１３ｅ内には、シール部材１５を形成するエラストマ樹脂が充填されるものであって、この充填された樹脂が抜け出さないように埋設される埋設部１３ｆが形成されている。そして、蓋部材１３におけるギヤハウジング２１側の面１３ｙの外周縁にシール部材１５が一体成形され、該面１３ｙに成形されたシール部材１５は図７（ｂ）〜（ｄ）に示すように連通孔１３ｅ内に充填される。この場合、該連通孔１３ｅ内に設けた埋設部１３ｆによって充填された樹脂が抜け出すことが防止され、蓋部材１３に対するシール部材１５の移動及び剥離を防止して該シール部材１５を蓋部材１３に確実に固定するようになっている。
【００２５】
そして、このようなシール部材１５により、ヨークハウジング４の開口部４ｃ内及びギヤハウジング２１の開口部２１ｅ内への浸水が防止されている。又、蓋部材１３はヨークハウジング４の開口部４ｃを密閉するので、ブラシ１１摺接時に生じるブラシ粉が後述するクラッチ２２及び制御回路基板３１に飛散することを防止し、モータ１の誤動作を防止するようになっている。更に、シール部材１５には、図２及び図４に示すように、その弾性力により制御回路基板３１の端面を押圧する押圧突起１５ａが所定の２箇所に形成されている。
【００２６】
このような蓋部材１３は、ブラシホルダ１０をヨークハウジング４に嵌挿した後にギヤハウジング２１の開口部２１ｅに嵌合される。そして、ヨークハウジング４は蓋部材１３を介在させた所定の３箇所においてギヤハウジング２１に対してネジ１６及びナット１７により固定される。又、蓋部材１３は更にヨークハウジング４から離間した２箇所においてギヤハウジング２１に対してネジ１６及びナット１７により固定される。この場合、蓋部材１３は、その一部がギヤハウジング２１と金属プレート１８とに狭持された状態で、ギヤハウジング２１と金属プレート１８との間でネジ１６及びナット１７により固定されている。
【００２７】
一方、前記減速部３は、樹脂製のギヤハウジング２１を有している。ギヤハウジング２１は、回転軸収容部２１ａと、該収容部２１ａに連通し前記モータ１の軸線Ｌ１方向に延びるウォーム軸収容部２１ｂと、該収容部２１ｂと連通し前記モータ１の軸線Ｌ１方向と直交する方向かつヨークハウジング４の平面部４ａの平面方向（扁平方向）に延びるウォームホイール収容部２１ｃと、前記回転軸収容部２１ａと連通し前記ウォームホイール収容部２１ｃとはウォーム軸収容部２１ｂ（軸線Ｌ１）を挟んだ反対側に延びる基板収容部２１ｄとを備えている。回転軸収容部２１ａと基板収容部２１ｄとは、前記モータ部２側に開口する同一の開口部２１ｅを有している。
【００２８】
前記回転軸収容部２１ａにおいて、前記回転軸７の先端部にはクラッチ２２を構成する駆動側部２２ａが一体回転可能に設けられている。因みに、この駆動側部２２ａは、前記ヨークハウジング４にマグネット５及び電機子６を収容し、蓋部材１３（ブラシホルダ１０）を組み付けた後に、回転軸７の先端部に固定される。この駆動側部２２ａの所定部位には、回転軸７の回転を検出するためのセンサマグネット２３が固定されている。
【００２９】
ここで、前記クラッチ２２は、前記駆動側部２２ａと後述するウォーム軸２４に一体回転可能に設けられる従動側部２２ｂとから構成される。クラッチ２２は、駆動側部２２ａからの回転力はそのまま従動側部２２ｂに伝達する一方、従動側部２２ｂからの回転力は駆動側部２２ａに伝達しないように構成されるものである。つまり、モータ部２の駆動による回転軸７の回転力はクラッチ２２を介してウォーム軸２４に伝達し、ウォーム軸２４側からの回転力は回転軸７に伝達しないようになっている。そして、クラッチ２２はモータ部２と減速部３とを組み付けると同時に組み立てられ、前記回転軸７とウォーム軸２４とを相互に駆動連結する。
【００３０】
前記ウォーム軸収容部２１ｂにおいて、ウォーム２４ａが一体に形成されるウォーム軸２４が該収容部２１ｂ内に配設される一対の軸受２５により回転可能に支持されている。ウォーム軸２４の基端部には、前記クラッチ２２を構成する従動側部２２ｂが一体回転可能に設けられている。
【００３１】
前記ウォームホイール収容部２１ｃにおいて、前記ウォーム２４ａと噛合する前記ウォームホイール２６が回転可能に収容されている。ウォームホイール２６の中心部には、パワーウインド装置のウインドレギュレータ（図示略）に連結される出力軸２７が固定されている。そして、ウォーム軸２４の回転力がウォームホイール２６を介して出力軸２７に伝達され、ウインドレギュレータが作動するようになっている。
【００３２】
前記基板収容部２１ｄにおいて、制御回路基板３１が収容される。この制御回路基板３１には、前記モータ１の回転を制御する制御回路３２を搭載している。基板収容部２１ｄには、制御回路基板３１の挿入方向と直交する方向の両端部をガイドするガイド溝２１ｆが前記モータ１の軸線Ｌ１方向に平行に形成されている。従って、制御回路基板３１は、制御回路３２等を搭載した部品搭載面３１ａが前記ヨークハウジング４の平面部４ａの平面方向（扁平方向）と平行になるようにしてガイド溝２１ｆに沿って挿入される。そして、図８に示すように、前記蓋部材１３が取り付けられると、シール部材１５に一体形成した押圧突起１５ａの弾性力により制御回路基板３１の端面が押圧され、該制御回路基板３１はがたつきなく収容される。
【００３３】
図８に示すように、制御回路基板３１には、コネクタ基部３３がネジ３４により固定されている。コネクタ基部３３は、６本のターミナル３５をそれぞれ所定位置にて支持している。各ターミナル３５は、基端部３５ａが該基板３１に立設されて前記制御回路３２と電気的に接続され、先端部３５ｂは基板３１と平行になるように折り曲げられコネクタ基部３３の背面３３ａから該基部３３に形成された各挿通孔３３ｂに挿通され該基部３３を貫通させている。又、コネクタ基部３３の背面３３ａには、図８及び図１０に示すように、各ターミナル３５の位置を規制するガイド３３ｃが設けられている。このガイド３３ｃによって各ターミナル３５の無用な移動が規制され、各ターミナル３５の変形が防止されている。
【００３４】
ここで、前記ギヤハウジング２１は、モータ１の軸線Ｌ１方向と平行に延出形成され車両側から延びる車両側コネクタ（図示略）と連結するためのコネクタ部２１ｇを有している。コネクタ部２１ｇには、同方向に沿って延び基板収容部２１ｄと外部とを連通する連通孔２１ｈが形成されている。この連通孔２１ｈには、前記コネクタ基部３３が嵌挿され、各ターミナル３５が連通孔２１ｈ内で露出するようになっている。そして、コネクタ部２１ｇは車両側コネクタと連結され、該車両側コネクタから各ターミナル３５を介して制御回路３２に駆動電源及び制御信号が入力される。
【００３５】
前記制御回路基板３１には、前記蓋部材１３から延びる前記一対の接続片１４とそれぞれ電気的に接続するための一対の雌端子３６が取着されている。雌端子３６は、図９に示すように、基板３１に固定されるとともに制御回路３２に電気的に接続される基部３６ａと、該基部３６ａから延び基板３１の上下方向に弾性変形可能な板バネ部３６ｂと、該板バネ部３６ｂから延び略筒状をなす挿入接続部３６ｃとから構成されている。この挿入接続部３６ｃは、その内部において挿入された接続片１４を弾性保持する弾性片３６ｄを有しており、該弾性片３６ｄは、接続片１４の挿入する側が拡開するように折り曲げ形成されている。尚、このような雌端子３６は、一枚の板材を所定形状に打ち抜き折り曲げることにより形成されている。
【００３６】
そして、前記蓋部材１３とギヤハウジング２１（減速部３）との組み付け時に、雌端子３６に接続片１４が挿入され、相互が電気的に接続される。このとき、寸法ばらつきによって接続片１４が所定位置より上下方向にずれても、挿入接続部３６ｃの挿入側が拡開しているので、容易に挿入することができる。しかも、板バネ部３６ｂの弾性変形により接続片１４の寸法ずれを吸収できるので、接続片１４の変形が防止されている。更に、弾性片３６ｄの弾性力により、雌端子３６と接続片１４とが確実に導通状態となる。
【００３７】
又、制御回路基板３１には、図１〜図３に示すように、前記センサマグネット２３の外周面に対向する部位に一対のホール素子３７が配設されている。ホール素子３７は、回転軸７とともに回転するセンサマグネット２３の磁界の変化を検出し、その検出信号を制御回路３２に出力する。制御回路３２は、ホール素子３７からの検出信号に基づいて回転軸７の回転数や回転速度等の回転情報を検出している。制御回路３２は、前記コネクタ部２１ｇを介して車両側から入力される制御信号及びその回転情報に基づいた駆動電流を雌端子３６から接続片１４を介してブラシ１１に供給し、モータ部２を駆動し、ウインドレギュレータに所定動作を行わせるようになっている。
【００３８】
上記したように、本実施形態によれば、以下の効果を有する。
（１）蓋部材１３は、所定位置に連通孔１３ｃ，１３ｄ及び埋設部１３ｆを有する連通孔１３ｅよりなる係止部を有し、シール部材１５はその係止部と係止するように該蓋部材１３に対して一体成形され、ヨークハウジング４及びギヤハウジング２１の両開口部４ｃ，２１ｅを密閉状態にする。従って、シール部材１５は蓋部材１３に対して一体に成形されるので、該シール部材１５を蓋部材１３に固定するといった作業が必要なく簡単に固定することができる。しかも、シール部材１５は蓋部材１３に設けた係止部と係止するので、該シール部材１５を蓋部材１３に対して確実に固定することができる。
【００３９】
（２）シール部材１５と係止するための連通孔１３ｃ〜１３ｅを蓋部材１３の周囲に沿って複数箇所に設けたので、シール部材１５を蓋部材１３に対して確実に固定することができる。
【００４０】
（３）蓋部材１３には、シール部材１５の一部が充填される連通孔１３ｅと、その孔１３ｅに設けられ該孔１３ｅ内に充填されるシール部材１５に埋設される埋設部１３ｆとが形成され、孔１３ｅ内に充填されたシール部材１５が埋設部１３ｆに係止することにより、シール部材１５を蓋部材１３に対して確実に固定するようにした。このようにすれば、蓋部材１３に対してシール部材１５を係止する手段を簡単に構成することができる。
【００４１】
（４）蓋部材１３には、一側面１３ｘ及び他側面１３ｙを連通する連通孔１３ｃ，１３ｄが形成され、該蓋部材１３の一側面１３ｘに成形するシール部材１５と他側面１３ｙに成形するシール部材１５とをその連通孔１３ｃ，１３ｄを介して連結させて、シール部材１５を蓋部材１３に対して確実に固定するようにした。このようにすれば、蓋部材１３に対してシール部材１５を係止する手段を簡単に構成することができる。
【００４２】
（５）蓋部材１３は、回転軸７を収容する回転軸収容部２１ａと制御回路基板３１を収容する基板収容部２１ｄと同一の開口部２１ｅを塞ぐものである。従って、蓋部材１３を両収容部２１ａ，２１ｄで共用できるので、部品数が少なくてすむ。
【００４３】
尚、本発明の実施形態は、以下のように変更してもよい。
○上記実施形態の蓋部材１３及び該蓋部材１３に一体形成されるシール部材１５の形状は、これに限定されるものではない。又、シール部材１５を蓋部材１３に対して確実に固定するために、蓋部材１３に連通孔１３ｃ，１３ｄや埋設部１３ｆを有する連通孔１３ｅを形成したが、この構成に限定されるものではなく、例えば切欠きや突起等、適宜変更してもよい。又、連通孔１３ｃ〜１３ｅを設ける位置を適宜変更してもよい。
【００４４】
○上記実施形態では、シール部材１５をエラストマ樹脂で形成したが、その他の弾性樹脂で形成してもよい。
○上記実施形態のギヤハウジング２１の形状は、これに限定されるものではない。例えば、回転軸収容部２１ａと基板収容部２１ｄと同一の開口部２１ｅとしたが、それぞれ別個の開口部を有するように各収容部２１ａ，２１ｄを形成してもよい。この場合、蓋部材１３の形状を適宜変更する必要がある。
【００４５】
○上記実施形態のヨークハウジング４（モータ部２）を円筒状としてもよい。
○上記実施形態のクラッチ２２を省略してもよい。この場合、回転軸７とウォーム軸２４とを一体としてもよい。
【００４６】
○上記実施形態では、減速機構をウォーム２４ａとウォームホイール２６で構成したが、その他の減速ギヤを用いて構成してもよい。
○上記実施形態では、回転軸７の回転を検出する回転検出手段としてホール素子３７及びセンサマグネット２３を用いたが、ホール素子３７に替えて磁気抵抗素子を用いてもよい。又、磁気検出型以外の検出手段を用いてもよい。
【００４７】
○上記実施形態では、基板３１に雌端子３６、モータ部２側の雄端子（接続片１４）を用いたが、この基板３１側に雄端子、モータ部２側に雌端子を用いてもよい。
【００４８】
○上記実施形態では、ターミナル３５をコネクタ基部３３に挿通して保持するようにしたが、ターミナル３５をコネクタ基部３３にインサートしてもよい。
○上記実施形態では、モータ１を車両用パワーウインド装置の駆動源として使用したが、その他の装置の駆動源であってもよい。
【００４９】
【発明の効果】
以上詳述したように、本発明によれば、ハウジングの収容部の開口部と該開口部を塞ぐ蓋部材との間にシール部材を有するモータであって、蓋部材に対するシール部材の固定を簡単かつ確実にすることができる。
【図面の簡単な説明】
【図１】本実施形態のモータの平面図である。
【図２】モータの分解平面図である。
【図３】図１のＡ方向から見たモータの分解図である。
【図４】蓋部材のギヤハウジング側の面を説明するための図である。
【図５】シール部材を一体成形する前の蓋部材を説明するための図である。
【図６】（ａ）は図５のＢ−Ｂ断面図、（ｂ）は図５のＣ−Ｃ断面図、（ｃ）は図５のＤ−Ｄ断面図、（ｄ）は図５のＥ−Ｅ断面図である。
【図７】（ａ）は図３のＢ−Ｂ断面図、（ｂ）は図３のＣ−Ｃ断面図、（ｃ）は図３のＤ−Ｄ断面図、（ｄ）は図３のＥ−Ｅ断面図である。
【図８】図１のＦ−Ｆ断面図である。
【図９】雌端子の拡大断面図である。
【図１０】コネクタ基部の背面図である。
【符号の説明】
２…モータ部、３…減速部、４…ヨークハウジング、４ｃ…開口部、７…回転軸、１３…蓋部材、１３ｃ〜１３ｅ…係止部を構成する連通孔、１３ｆ…係止部を構成する埋設部、１５…シール部材、２１…ギヤハウジング、２１ａ…収容部としての回転軸収容部、２１ｄ…収容部としての基板収容部、２１ｅ…開口部、２４…減速機構を構成するウォーム軸、２６…減速機構を構成する減速ギヤとしてのウォームホイール、３１…制御回路基板。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a motor, and more particularly to a motor that integrally accommodates a speed reduction mechanism and a control circuit board.
[0002]
[Prior art]
As a drive source for a vehicle power window device, a motor with a speed reduction mechanism in which a motor portion and a speed reduction portion that decelerates rotation of the motor portion are integrally assembled is generally used. The motor section includes a yoke housing that houses an armature, a magnet, and the like, while the speed reduction section includes a resin gear housing that houses a speed reduction mechanism, and the yoke housing and the gear housing are connected by screws so that the openings face each other. Fixed. Some of such motors further accommodate a control circuit board for controlling the rotation of the motor unit. That is, a substrate housing part for accommodating the control circuit board is formed in a part of the gear housing, and the control circuit board is accommodated and fixed from the opening of the board housing part.
[0003]
Further, since the gear housing needs to be hermetically sealed to prevent ingress of liquid such as water and dust from the outside, the opening is closed with a resin lid member and fixed to the housing. ing. In addition, a seal member that is elastically deformed when the lid member is attached is interposed between the lid member and the opening portion of the gear housing, thereby reliably preventing liquid and dust from entering from the opening portion. Yes.
[0004]
[Problems to be solved by the invention]
By the way, when the sealing member described above is fitted to the lid member, the lid member may fall off when the lid member is attached, and the work of attaching the lid member so that the sealing member does not fall off is complicated. Further, since the seal member is not fixed to the lid member, for example, a part of the seal member pops out when the lid member is fixed, and the sealed state of the part is impaired. For this reason, conventionally, the sealing member has been securely fixed to the lid member with an adhesive.
[0005]
However, the work of fixing the seal member with an adhesive is a complicated work and has poor workability. Moreover, it takes time for the adhesive to dry. Therefore, there is a problem that the number of assembling steps of the motor increases.
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a motor having a seal member between an opening of a housing accommodating portion of a housing and a lid member that closes the opening. An object of the present invention is to easily and reliably fix the sealing member to the lid member.
[0007]
[Means for Solving the Problems]
  In order to solve the above problems, the invention according to claim 1 is a motor unit that rotates a rotating shaft, a speed reduction mechanism that decelerates the rotation of the rotating shaft, and a control circuit board that controls the rotation of the motor unit. And a speed reducer having a gear housing for housing the motor, and a motor having a lid member for closing the opening of the housing portion of the gear housing, wherein the lid member has a locking portion at a predetermined position. And a sealing member made of an elastic resin that is integrally formed with the lid member so as to be locked with the locking portion, and that seals the opening.The seal member is formed on the periphery of the lid member with which the opening of the gear housing abuts.The locking portion isProvided at a predetermined position on the periphery of the lid member.A hole in which a part of the seal member is filled, and a buried portion provided in the hole and buried in the seal member filled in the hole so that the filled seal member does not come out of the hole. Consists ofThe seal member is interposed between the embedded portion and the opening of the gear housing in a state where the motor portion and the speed reduction portion are assembled together.The
[0008]
  According to a second aspect of the present invention, there is provided a motor unit including a yoke housing that rotatably accommodates a rotating shaft, a speed reducing mechanism for decelerating the rotation of the rotating shaft, and a control circuit board that controls the rotation of the motor unit. And a speed reduction portion having a gear housing for housing the gear housing, the opening portion of the housing portion of the gear housing being closed, and a portion interposed between the opening portion and the opening portion of the yoke housing. A motor having a lid member, wherein the lid member has a locking portion at a predetermined position, and is integrally formed with the lid member so as to be locked with the locking portion, and the both openings are sealed. A seal member made of an elastic resin to be in a state is provided,The seal member is formed on the periphery of the lid member with which the opening of the gear housing abuts.The locking portion isProvided at a predetermined position on the periphery of the lid member.A hole in which a part of the seal member is filled, and a buried portion provided in the hole and buried in the seal member filled in the hole so that the filled seal member does not come out of the hole. Consists ofThe seal member is interposed between the embedded portion and the opening of the gear housing in a state where the motor portion and the speed reduction portion are assembled together.The
[0009]
  The invention according to claim 3 is the motor according to claim 1 or 2,The hole extends in the assembly direction of the motor part and the speed reduction part.
  The invention according to claim 4 is the motor according to any one of claims 1 to 3,The locking portion is provided at a plurality of locations along the periphery of the lid member.
[0010]
  Claim5The invention described in claim 14The motor according to claim 1, wherein the locking portion further includes a communication hole that communicates one side surface and the other side surface of the lid member, and the seal member is formed on one side surface of the lid member. And the sealing member formed on the other side surface are connected via the communication hole.
[0011]
  Claim6The invention described in claim 15In the motor according to any one of the above, the gear housing has an opening that is the same as a rotating shaft housing portion that houses the rotating shaft and a substrate housing portion that houses the control circuit board, and the lid member is The opening is closed.
[0012]
(Function)
According to the first aspect of the present invention, the lid member has a locking portion at a predetermined position, and the sealing member made of elastic resin is integrally formed with the lid member so as to be locked with the locking portion. Seal the gear housing opening. Therefore, since the seal member is formed integrally with the lid member, the seal member can be easily fixed without the need for an operation of fixing the seal member to the lid member. Moreover, since the seal member is engaged with the engagement portion provided on the lid member, the seal member can be reliably fixed to the lid member.
[0013]
According to the second aspect of the present invention, the lid member has a locking portion at a predetermined position, and the sealing member made of elastic resin is integrally formed with the lid member so as to be locked with the locking portion. Both openings of the gear housing and the yoke housing are sealed. Therefore, since the seal member is formed integrally with the lid member, the seal member can be easily fixed without the need for an operation of fixing the seal member to the lid member. Moreover, since the seal member is engaged with the engagement portion provided on the lid member, the seal member can be reliably fixed to the lid member.
[0014]
  According to invention of Claim 1 and 2, a latching | locking part is a hole with which a part of sealing member is filled, and the embedding part which is provided in the hole and is embed | buried under the sealing member with which it fills in this hole. The seal member filled in the hole is locked to the embedded portion, so that the seal member is securely fixed to the lid member. If it does in this way, a latching | locking part can be comprised easily.
  Claim4According to the invention described in, since the locking portions are provided at a plurality of locations along the periphery of the lid member, the seal member can be reliably fixed to the lid member.
[0015]
  Claim5According to the invention described in (1), the locking portion includes a communication hole that communicates one side surface and the other side surface of the lid member, and the seal member that is molded on one side surface of the lid member and the seal member that is molded on the other side surface are formed. By connecting through the communication hole, the sealing member is securely fixed to the lid member. If it does in this way, a latching | locking part can be comprised easily.
[0016]
  Claim6According to the invention described in (1), the lid member closes the same opening as the rotating shaft housing portion that houses the rotating shaft and the substrate housing portion that houses the control circuit board. Therefore, since the lid member can be shared by both housing parts, the number of parts can be reduced.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows a motor 1 with a speed reduction mechanism of the present embodiment. FIG. 2 is an exploded view of the motor 1, and FIG. 3 is an exploded view of the motor 1 viewed from the direction A in FIG.
[0018]
As shown in FIGS. 1 to 3, the motor 1 is used as a drive source of a vehicle power window device. The motor 1 is configured by integrally assembling a motor unit 2 and a speed reducing unit 3 that decelerates rotation of the motor unit 2.
[0019]
As shown in FIG. 3, the motor unit 2 includes a bottomed flat cylindrical yoke housing 4 having a pair of parallel flat portions 4 a and a pair of arc portions 4 b that connect between the ends of the flat portions 4 a. Have. Note that the planar direction of the planar portion 4 a is the flat direction of the motor 1. The yoke housing 4 is made of a magnetic material, and a plurality of magnets 5 are fixed to a predetermined position on the inner surface thereof, and an armature 6 is rotatably accommodated inside the magnet 5. The armature 6 has a rotating shaft 7, and the base end portion of the rotating shaft 7 is rotatably supported by a bearing 8 provided at the bottom of the yoke housing 4. A commutator 9 is fixed to the tip end side of the rotating shaft 7.
[0020]
A brush holder 10 is fitted into the opening 4 c of the yoke housing 4. The brush holder 10 holds a pair of brushes 11 that are in sliding contact with the commutator 9. A bearing 12 is held at the center of the brush holder 10, and the bearing 12 rotatably supports the tip end side of the rotating shaft 7. The brush holder 10 is formed integrally with the lid member 13.
[0021]
The lid member 13 is made of resin, and is interposed between an opening 4c of the yoke housing 4 and an opening 21e of a gear housing 21 described later, and closes both the openings 4c and 21e. A pair of connection pieces 14 that are electrically connected to the pair of brushes 11 extend in parallel with the lid member 13 in the direction of the axis L <b> 1 of the motor 1 (the assembly direction of the motor unit 2). A sealing member 15 made of an elastomer resin is integrally formed on the lid member 13 by two-color molding at a position where the opening 4c of the yoke housing 4 and the opening 21e of the gear housing 21 are sealed.
[0022]
Here, the lid member 13 is a first portion 13 a (right side in FIG. 3) that seals the opening 4 c of the yoke housing 4 and a part of the opening 21 e of the gear housing 21, and the opening 21 e of the gear housing 21. The remaining portion is a second portion 13b for sealing.
[0023]
As shown in FIG. 5, the first portion 13 a of the lid member 13 is disposed around and outside the brush holder 10 where the opening 4 c of the yoke housing 4 and a part of the opening 21 e of the gear housing 21 abut. A plurality of communication holes 13c and 13d are formed at predetermined positions on the periphery (only the communication hole 13c is shown in FIG. 6A). The sealing member 15 is integrally formed on substantially the entire surface 13x on the yoke housing 4 side and the surface 13y on the gear housing 21 side of the lid member 13, and the sealing member 15 formed on both surfaces 13x and 13y is connected to each communication hole 13c, They are connected via 13d (only the communication hole 13c is shown in FIG. 7A). In this case, by providing such a connecting portion, the seal member 15 is prevented from moving and peeling from the lid member 13, and the seal member 15 is securely fixed to the lid member 13.
[0024]
Further, as shown in FIG. 5, the second portion 13b of the lid member 13 is formed with a plurality of communication holes 13e at predetermined positions on the outer peripheral edge where the remaining portion of the opening 21e of the gear housing 21 abuts. (See FIGS. 6B to 6D). The communicating hole 13e is filled with an elastomer resin that forms the seal member 15, and an embedded portion 13f is formed so that the filled resin does not escape. A sealing member 15 is integrally formed on the outer peripheral edge of the surface 13y on the gear housing 21 side of the lid member 13, and the sealing member 15 formed on the surface 13y communicates as shown in FIGS. 7 (b) to 7 (d). The holes 13e are filled. In this case, the resin filled by the embedded portion 13f provided in the communication hole 13e is prevented from coming out, and the seal member 15 is prevented from moving and peeling from the lid member 13 so that the seal member 15 is attached to the lid member 13. It is designed to be securely fixed.
[0025]
Such a seal member 15 prevents water from entering the opening 4c of the yoke housing 4 and the opening 21e of the gear housing 21. Further, since the lid member 13 seals the opening 4c of the yoke housing 4, the brush powder generated when the brush 11 is in sliding contact is prevented from scattering to the clutch 22 and the control circuit board 31 to be described later, and the motor 1 is prevented from malfunctioning. It is supposed to be. Further, as shown in FIGS. 2 and 4, the sealing member 15 is formed with two pressing protrusions 15 a that press the end surface of the control circuit board 31 by its elastic force.
[0026]
Such a lid member 13 is fitted into the opening 21 e of the gear housing 21 after the brush holder 10 is fitted into the yoke housing 4. The yoke housing 4 is fixed to the gear housing 21 with screws 16 and nuts 17 at predetermined three positions with the lid member 13 interposed. Further, the lid member 13 is further fixed to the gear housing 21 by screws 16 and nuts 17 at two positions spaced from the yoke housing 4. In this case, the lid member 13 is fixed between the gear housing 21 and the metal plate 18 by screws 16 and nuts 17 with a part of the lid member 13 being held between the gear housing 21 and the metal plate 18.
[0027]
On the other hand, the speed reducing portion 3 has a resin gear housing 21. The gear housing 21 includes a rotary shaft housing portion 21a, a worm shaft housing portion 21b that communicates with the housing portion 21a and extends in the direction of the axis L1 of the motor 1, and a shaft housing portion 21b that communicates with the housing portion 21b. A worm wheel housing portion 21c extending in a direction perpendicular to the plane direction (flat direction) of the flat surface portion 4a of the yoke housing 4, and the worm wheel housing portion 21c communicating with the rotating shaft housing portion 21a is a worm shaft housing portion 21b ( And a substrate housing portion 21d extending on the opposite side across the axis L1). The rotating shaft accommodating portion 21a and the substrate accommodating portion 21d have the same opening portion 21e that opens to the motor portion 2 side.
[0028]
In the rotating shaft housing portion 21a, a driving side portion 22a constituting the clutch 22 is provided at the tip portion of the rotating shaft 7 so as to be integrally rotatable. Incidentally, the drive side portion 22a is fixed to the tip end portion of the rotary shaft 7 after the magnet 5 and the armature 6 are accommodated in the yoke housing 4 and the lid member 13 (brush holder 10) is assembled. A sensor magnet 23 for detecting the rotation of the rotating shaft 7 is fixed to a predetermined portion of the driving side portion 22a.
[0029]
Here, the clutch 22 is composed of the driving side portion 22a and a driven side portion 22b provided to be rotatable integrally with a worm shaft 24 described later. The clutch 22 is configured so that the rotational force from the drive side portion 22a is transmitted to the driven side portion 22b as it is, while the rotational force from the driven side portion 22b is not transmitted to the drive side portion 22a. That is, the rotational force of the rotary shaft 7 driven by the motor unit 2 is transmitted to the worm shaft 24 via the clutch 22, and the rotational force from the worm shaft 24 side is not transmitted to the rotary shaft 7. The clutch 22 is assembled at the same time as the motor unit 2 and the speed reduction unit 3 are assembled, and the rotary shaft 7 and the worm shaft 24 are driven and connected to each other.
[0030]
In the worm shaft accommodating portion 21b, the worm shaft 24, in which the worm 24a is integrally formed, is rotatably supported by a pair of bearings 25 disposed in the accommodating portion 21b. A driven side portion 22b constituting the clutch 22 is provided at the base end portion of the worm shaft 24 so as to be integrally rotatable.
[0031]
In the worm wheel accommodating portion 21c, the worm wheel 26 meshing with the worm 24a is accommodated rotatably. An output shaft 27 connected to a window regulator (not shown) of the power window device is fixed to the central portion of the worm wheel 26. Then, the rotational force of the worm shaft 24 is transmitted to the output shaft 27 via the worm wheel 26 so that the window regulator operates.
[0032]
A control circuit board 31 is accommodated in the substrate accommodating portion 21d. A control circuit 32 that controls the rotation of the motor 1 is mounted on the control circuit board 31. In the substrate housing portion 21d, guide grooves 21f for guiding both end portions in a direction orthogonal to the insertion direction of the control circuit substrate 31 are formed in parallel to the direction of the axis L1 of the motor 1. Therefore, the control circuit board 31 is inserted along the guide groove 21f so that the component mounting surface 31a on which the control circuit 32 and the like are mounted is parallel to the plane direction (flat direction) of the plane portion 4a of the yoke housing 4. The As shown in FIG. 8, when the lid member 13 is attached, the end surface of the control circuit board 31 is pressed by the elastic force of the pressing protrusion 15a formed integrally with the seal member 15, and the control circuit board 31 is peeled off. Contained without difficulty.
[0033]
As shown in FIG. 8, the connector base 33 is fixed to the control circuit board 31 with screws 34. The connector base 33 supports the six terminals 35 at predetermined positions. Each terminal 35 has a base end portion 35 a erected on the substrate 31 and is electrically connected to the control circuit 32, and a tip end portion 35 b is bent so as to be parallel to the substrate 31 and from the back surface 33 a of the connector base portion 33. The base 33 is inserted through the insertion holes 33 b formed in the base 33 and penetrates through the base 33. Further, as shown in FIGS. 8 and 10, a guide 33 c that regulates the position of each terminal 35 is provided on the back surface 33 a of the connector base 33. Unnecessary movement of each terminal 35 is restricted by this guide 33c, and deformation of each terminal 35 is prevented.
[0034]
Here, the gear housing 21 has a connector portion 21g that is connected to a vehicle-side connector (not shown) that extends in parallel with the direction of the axis L1 of the motor 1 and extends from the vehicle side. The connector portion 21g is formed with a communication hole 21h that extends along the same direction and communicates the substrate housing portion 21d with the outside. The connector base 33 is inserted into the communication hole 21h, and each terminal 35 is exposed in the communication hole 21h. The connector portion 21g is connected to the vehicle-side connector, and drive power and control signals are input from the vehicle-side connector to the control circuit 32 via the terminals 35.
[0035]
A pair of female terminals 36 for electrical connection with the pair of connection pieces 14 extending from the lid member 13 are attached to the control circuit board 31. As shown in FIG. 9, the female terminal 36 is fixed to the substrate 31 and electrically connected to the control circuit 32, and a leaf spring extending from the base portion 36a and elastically deformable in the vertical direction of the substrate 31. It is comprised from the part 36b and the insertion connection part 36c which extends from this leaf | plate spring part 36b and makes a substantially cylindrical shape. The insertion connection portion 36c has an elastic piece 36d that elastically holds the connection piece 14 inserted therein, and the elastic piece 36d is formed to be bent so that the side on which the connection piece 14 is inserted is expanded. ing. Such a female terminal 36 is formed by punching and bending a single plate material into a predetermined shape.
[0036]
Then, when the lid member 13 and the gear housing 21 (the speed reduction unit 3) are assembled, the connection piece 14 is inserted into the female terminal 36 and is electrically connected to each other. At this time, even if the connection piece 14 is displaced in the vertical direction from a predetermined position due to dimensional variations, the insertion side of the insertion connection portion 36c is expanded, so that it can be easily inserted. In addition, since the dimensional shift of the connection piece 14 can be absorbed by the elastic deformation of the leaf spring portion 36b, the deformation of the connection piece 14 is prevented. Furthermore, the female terminal 36 and the connection piece 14 are surely connected to each other by the elastic force of the elastic piece 36d.
[0037]
In addition, as shown in FIGS. 1 to 3, the control circuit board 31 is provided with a pair of Hall elements 37 at portions facing the outer peripheral surface of the sensor magnet 23. The hall element 37 detects a change in the magnetic field of the sensor magnet 23 that rotates together with the rotating shaft 7 and outputs a detection signal to the control circuit 32. The control circuit 32 detects rotation information such as the rotation speed and rotation speed of the rotary shaft 7 based on the detection signal from the hall element 37. The control circuit 32 supplies a control signal input from the vehicle side via the connector part 21g and a drive current based on the rotation information from the female terminal 36 to the brush 11 via the connection piece 14, and the motor part 2 is supplied. Driven to cause the window regulator to perform a predetermined operation.
[0038]
As described above, the present embodiment has the following effects.
(1) The lid member 13 has a locking portion including a communication hole 13e having communication holes 13c, 13d and an embedded portion 13f at a predetermined position, and the sealing member 15 is locked to the locking portion. It is integrally formed with the member 13, and both the openings 4c and 21e of the yoke housing 4 and the gear housing 21 are sealed. Accordingly, since the seal member 15 is formed integrally with the lid member 13, it is possible to easily fix the seal member 15 without requiring the work of fixing the seal member 15 to the lid member 13. Moreover, since the seal member 15 is engaged with the engagement portion provided on the lid member 13, the seal member 15 can be reliably fixed to the lid member 13.
[0039]
(2) Since the communication holes 13 c to 13 e for locking with the seal member 15 are provided at a plurality of locations along the periphery of the lid member 13, the seal member 15 can be reliably fixed to the lid member 13. .
[0040]
(3) The lid member 13 has a communication hole 13e filled with a part of the seal member 15, and an embedded portion 13f embedded in the seal member 15 provided in the hole 13e and filled in the hole 13e. The seal member 15 formed and filled in the hole 13e is locked to the embedded portion 13f, so that the seal member 15 is securely fixed to the lid member 13. In this way, a means for locking the seal member 15 with respect to the lid member 13 can be easily configured.
[0041]
(4) The lid member 13 has communication holes 13c and 13d communicating with the one side surface 13x and the other side surface 13y, and the seal member 15 molded on the one side surface 13x of the lid member 13 and the seal molded on the other side surface 13y. The member 15 is connected via the communication holes 13 c and 13 d so that the seal member 15 is securely fixed to the lid member 13. In this way, a means for locking the seal member 15 with respect to the lid member 13 can be easily configured.
[0042]
(5) The lid member 13 closes the opening 21e that is the same as the rotating shaft accommodating portion 21a that accommodates the rotating shaft 7 and the substrate accommodating portion 21d that accommodates the control circuit board 31. Accordingly, the lid member 13 can be shared by both the accommodating portions 21a and 21d, so that the number of parts can be reduced.
[0043]
In addition, you may change embodiment of this invention as follows.
The shapes of the lid member 13 and the seal member 15 integrally formed with the lid member 13 are not limited to this. Further, in order to securely fix the seal member 15 to the lid member 13, the communication holes 13e having the communication holes 13c and 13d and the embedded portion 13f are formed in the lid member 13. However, the present invention is not limited to this configuration. For example, notches and protrusions may be appropriately changed. Moreover, you may change suitably the position which provides the communicating holes 13c-13e.
[0044]
In the above embodiment, the seal member 15 is made of elastomer resin, but may be made of other elastic resin.
The shape of the gear housing 21 of the above embodiment is not limited to this. For example, although the opening 21e is the same as the rotating shaft accommodating portion 21a and the substrate accommodating portion 21d, the accommodating portions 21a and 21d may be formed so as to have separate openings. In this case, it is necessary to appropriately change the shape of the lid member 13.
[0045]
The yoke housing 4 (motor unit 2) of the above embodiment may be cylindrical.
The clutch 22 of the above embodiment may be omitted. In this case, the rotating shaft 7 and the worm shaft 24 may be integrated.
[0046]
In the above embodiment, the speed reduction mechanism is constituted by the worm 24a and the worm wheel 26. However, other speed reduction gears may be used.
In the above embodiment, the Hall element 37 and the sensor magnet 23 are used as the rotation detecting means for detecting the rotation of the rotating shaft 7, but a magnetoresistive element may be used instead of the Hall element 37. Further, a detection means other than the magnetic detection type may be used.
[0047]
In the above embodiment, the female terminal 36 and the motor terminal 2 side male terminal (connection piece 14) are used for the substrate 31, but a male terminal may be used for the substrate 31 side and a female terminal for the motor unit 2 side. .
[0048]
In the above embodiment, the terminal 35 is inserted and held in the connector base 33. However, the terminal 35 may be inserted into the connector base 33.
In the above embodiment, the motor 1 is used as a drive source for the vehicle power window device, but may be a drive source for other devices.
[0049]
【The invention's effect】
As described above in detail, according to the present invention, the motor has a seal member between the opening of the housing accommodating portion and the lid member that closes the opening, and the fixing of the seal member to the lid member is simple. And you can be sure.
[Brief description of the drawings]
FIG. 1 is a plan view of a motor according to an embodiment.
FIG. 2 is an exploded plan view of a motor.
FIG. 3 is an exploded view of the motor viewed from the direction A in FIG. 1;
FIG. 4 is a view for explaining a surface of the lid member on the gear housing side.
FIG. 5 is a view for explaining a lid member before integrally forming a seal member.
6A is a cross-sectional view taken along line BB in FIG. 5, FIG. 6B is a cross-sectional view taken along line CC in FIG. 5, FIG. 6C is a cross-sectional view taken along line DD in FIG. It is EE sectional drawing.
7A is a cross-sectional view taken along the line BB in FIG. 3, FIG. 7B is a cross-sectional view taken along the line CC in FIG. 3, FIG. 7C is a cross-sectional view taken along the line DD in FIG. It is EE sectional drawing.
8 is a cross-sectional view taken along the line FF in FIG.
FIG. 9 is an enlarged cross-sectional view of a female terminal.
FIG. 10 is a rear view of the connector base.
[Explanation of symbols]
2 ... Motor part, 3 ... Deceleration part, 4 ... Yoke housing, 4c ... Opening part, 7 ... Rotating shaft, 13 ... Cover member, 13c-13e ... Communication hole which comprises a latching part, 13f ... A latching part is comprised Embedded part, 15 ... sealing member, 21 ... gear housing, 21a ... rotating shaft accommodating part as accommodating part, 21d ... substrate accommodating part as accommodating part, 21e ... opening part, 24 ... worm shaft constituting speed reduction mechanism, 26 ... Worm wheel as a reduction gear constituting the reduction mechanism, 31 ... Control circuit board.

Claims

A motor unit that rotates the rotating shaft, and a speed reducing unit that decelerates the rotation of the rotating shaft and a speed reducing unit that includes a gear housing that houses a control circuit board that controls the rotation of the motor unit, are assembled together. A motor including a lid member that closes an opening of a housing portion of the gear housing,
The lid member has a locking portion at a predetermined position, and includes a sealing member made of an elastic resin that is integrally formed with the lid member so as to be locked with the locking portion and seals the opening. ,
The seal member is formed at a peripheral edge of the lid member with which the opening of the gear housing abuts, and the locking portion is provided at a predetermined position on the peripheral edge of the lid member and is partially filled with the seal member. And a buried portion that is embedded in a seal member that is provided in the hole and is filled in the hole so that the filled seal member does not come out of the hole ,
Motor in a state where said motor portion and said speed reduction unit is assembled together, the seal member between the opening of the gear housing and the embedded portion is characterized by Rukoto interposed.

A motor unit having a yoke housing that rotatably accommodates a rotation shaft, a speed reduction mechanism for decelerating the rotation of the rotation shaft, and a gear housing that houses a control circuit board that controls the rotation of the motor unit And a lid member having a portion interposed between the opening and the opening of the yoke housing. ,
The lid member has a locking portion at a predetermined position, and a sealing member made of an elastic resin that is integrally formed with the lid member so as to be locked with the locking portion and that seals both the openings. Prepared,
The seal member is formed at a peripheral edge of the lid member with which the opening of the gear housing abuts, and the locking portion is provided at a predetermined position on the peripheral edge of the lid member and is partially filled with the seal member. And a buried portion that is embedded in a seal member that is provided in the hole and is filled in the hole so that the filled seal member does not come out of the hole ,
Motor in a state where said motor portion and said speed reduction unit is assembled together, the seal member between the opening of the gear housing and the embedded portion is characterized by Rukoto interposed.

The motor according to claim 1 or 2,
The said hole is extended in the assembly direction of the said motor part and the said deceleration part, The motor characterized by the above-mentioned .

The motor according to any one of claims 1 to 3,
The said latching | locking part is provided in multiple places along the periphery of the said cover member, The motor characterized by the above-mentioned.

The motor according to any one of claims 1 to 4,
The locking portion further includes a communication hole communicating with one side surface and the other side surface of the lid member, and the sealing member molded on one side surface of the lid member and the seal member molded on the other side surface. A motor characterized in that the motor is connected through the communication hole .

The motor according to any one of claims 1 to 5,
The gear housing has an opening that is the same as a rotating shaft housing portion that houses the rotating shaft and a substrate housing portion that houses the control circuit board,
The lid member is a motor that closes an opening of the lid member.