JP3553364B2 - Electromagnetic coupling device - Google Patents

Electromagnetic coupling device Download PDF

Info

Publication number
JP3553364B2
JP3553364B2 JP09417498A JP9417498A JP3553364B2 JP 3553364 B2 JP3553364 B2 JP 3553364B2 JP 09417498 A JP09417498 A JP 09417498A JP 9417498 A JP9417498 A JP 9417498A JP 3553364 B2 JP3553364 B2 JP 3553364B2
Authority
JP
Japan
Prior art keywords
housing
terminal
connector
coil
coupling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP09417498A
Other languages
Japanese (ja)
Other versions
JPH11294487A (en
Inventor
憲爾 酒本
勝己 西井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP09417498A priority Critical patent/JP3553364B2/en
Publication of JPH11294487A publication Critical patent/JPH11294487A/en
Application granted granted Critical
Publication of JP3553364B2 publication Critical patent/JP3553364B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Braking Arrangements (AREA)
  • Electromagnets (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic connector having a high reliability capable of making terminal processing of a coil easy in which there is no breaking accident of wire of a coil terminal caused by a vibration and a temperature variation and no contacting accident to an outside lead and a rotating body. SOLUTION: This connector is provided with a bowl type rotor 3 fixed to hollow shafts 1, 2; a driving member 4 loosely engaged with the hollow shaft 2 rotatably and having a connecting member 5 connecting and disconnecting to the rotor 3; a yoke 7 loosely engaged with the hollow shaft rotatably; and exciting device 15 mounted to the yoke 7 in which an exciting coil 17 is wound on a bobbin 16; a housing 18 integrally formed with the bobbin 16 to which a connector projected outside of the exciting coil 17 is inserted; and a terminal 19 bent to an outer diameter side of the housing 18, after it is inserted to an engaging aperture 18a of the housing 18 to connect to a terminal of the exciting coil 17 and of which a connecting portion is backwardly bent to an inside the housing 18 after winding.

Description

【0001】
【発明の属する技術分野】
この発明は、複写機の紙送り機構などに用いられる小型の電磁連結装置に関するものである。
【0002】
【従来の技術】
図7は従来の電磁連結装置の構成を示す断面図で、図において1は図示しない被駆動軸に突起部1aにより回転方向に固定されて係合する第一の中空軸、2は第一の中空軸1に固定される第二の中空軸、3は第一の中空軸1と第二の中空軸とに挟持固定され切り欠き部3aを有する碗型のロータ、4は外周にギヤ4aを有し、第二の中空軸2の外周に回転自在に保持され、ロータ3に空隙gを介して対向するアマチュア5が板バネ材6を介して取り付けられた駆動部材、7は第一の中空軸1の外周に回転自在に保持され、使用時には取り付け部7aにて固定される固定子のヨーク、8はヨーク7に固定される励磁装置で、励磁装置8は、ボビン9と、ボビン9に巻回される励磁コイル10と、ボビン9に固定され励磁コイル10の巻始めと巻終わりのコイル口出し線を接続するターミナル11と、ターミナル11に接続され外部に口出しするリード線12と、ターミナル11の接続部と励磁コイル10の外周とを保護するカバー13とにより構成され、ターミナル11とコイル口出し線との接続部にはコイル口出し線を保護するためにカバー13内に樹脂14が充填されている。
【0003】
このように構成された従来の電磁連結装置において、励磁コイル10が励磁されると、ヨーク7とヨーク7の外周まで延長されたロータ3とからなる磁路に磁束Φが発生し、ロータ3に設けられた切り欠き部3aの磁気抵抗により磁束がアーマチュア5に分流する結果、アーマチュア5はロータ3に吸引され、板バネ材6の弾性力に抗してアーマチュア5がロータ3に吸着されて駆動部材4の回転がロータ3と中空軸1及び2を介して図示しない被駆動軸に伝達され、また、励磁コイル10の励磁を遮断することによりこの回転伝達は消失する。
【0004】
【発明が解決しようとする課題】
このような従来の小型の電磁連結装置においては次のような課題を有するものであった。励磁コイル10は比較的細い導線にて巻回され、巻始めと巻終わり、つまり、励磁コイル10の端末部はターミナル11を介して外部リード12と接続されるが、励磁コイル10の端末部には巻線時のテンションが加わっており、使用時にはこれに振動と温度変化が加わって疲労破断に至ることが多く、充填された樹脂14は振動による応力の低減には効果的であるが、温度変化による応力に対しては効果が少なく、断線対策としては接続作業時の注意以外に方法がなく、作業に熟練を要すると共に製造原価の低減に限界を生ずるものであった。また、本体側の構成で決定される外部リード12の口出し方向によっては、外部リード12がロータ3に接触し、地絡事故や断線が発生することがあった。
【0005】
この発明は、以上のような課題を解決するためになされたもので、励磁コイルの端末処理を容易にし、振動や温度変化による端末部の断線事故や、外部リードと回転体との接触事故などのない信頼性の高い電磁連結装置を得ることを目的とするものである。
【0006】
【課題を解決するための手段】
この発明に係わる電磁連結装置は、軸に固定され軸と共に回転する碗型のロータ、軸に回転自在に遊嵌されロータに対して結合・開離する結合部材を有する駆動部材、軸に回転自在に遊嵌されロータと共に磁路を形成する固定子のヨーク、このヨークに取り付けられボビンに励磁コイルが巻回された励磁装置、この励磁装置のボビンと一体に形成され励磁コイルの外部口出し用コネクタが嵌挿されるハウジング、このハウジングの嵌合穴に装着され励磁コイルの端末と接続されるターミナルを備え、前記ハウジングには、前記ターミナルと前記コイル端末部との接続部を収納する収納溝と、前記ターミナルの折り曲げ方向を規制するガイド溝が設けられ、ターミナルはハウジングの嵌合穴にコネクタの嵌挿側からコイル端末との接続部が嵌合穴の反挿入側に突出するように挿入されると共に、挿入側には挿入深さを規制するフランジ部が設けられており、嵌合穴から突出したコイル端末との接続側が挿入後にハウジングの外径側に前記ガイド溝に沿って折り曲げられ、さらにコイル端末との接続後にこの折り曲げが戻されてハウジングの収納溝内に収容されるように構成したものである。
【0007】
また、ハウジングのガイド溝と収納溝との外周に接続部とコイル端末とを保護するテーピング処理がなされるようにしたものである。
また、ターミナルの接続部が所定値以上の長さに設定され、コイル端末接続後、余剰部分が切断されるように構成したものである。
【0008】
また、ハウジングのコネクタ嵌挿用開口部の内壁に、コネクタの異種嵌合防止キーと同一ピッチの異種嵌合防止用のキー溝が設けらるようにしたものである。さらに、ハウジングの異種嵌合防止用のキー溝にコネクタの異種嵌合防止用キーが係合して係止する嵌合穴が設けられるようにしたものである。
さらにまた、ハウジングのコネクタ嵌挿穴と異種嵌合防止キー溝との合計高さが、コネクタの異種嵌合防止キーを含む高さより所定値小さく設定されるようにしたものである。
また、ハウジングに、嵌挿されるコネクタを保持するためのスナップフィット爪が設けらるようにしたものである。
さらに、ハウジングの外周部に少なくとも碗型ロータの外径まで延長される側壁が設けられるようにしたものである。
【0009】
【発明の実施の形態】
実施の形態1.
図1〜図5は、この発明の実施の形態1の電磁連結装置の構成を示す断面図と説明図であり、図1は全体構成の断面図、図2は励磁コイルの端末処理の説明図、図3はハウジングの構成図、図4はコネクタの説明図、図5はハウジングにコネクタが嵌挿された状態の説明図で、図中、上記図7に示す従来例と同一部分には同一符号を付している。
図において、1は図示しない被駆動軸に突起部1aにて回転方向に固定されて係合する第一の中空軸、2は第一の中空軸1に固定される第二の中空軸、3は第一の中空軸1と第二の中空軸2とに挟持固定される碗型のロータ、4は外周にギヤ4aを有し、第二の中空軸2の外周に回転自在に保持されると共に、ロータ3に空隙gを介して対向するアマチュア5が板バネ材6を介して取り付けられる駆動部材、7は第一の中空軸1の外周に回転自在に保持され、使用時には取り付け部7aにて固定される固定子のヨーク、15はヨーク7に固定され、ボビン16と、ボビン16に巻回された励磁コイル17と、ボビン16と一体に形成されるハウジング18とからなる励磁装置である。
【0010】
ハウジング18は、外部接続用の複数極のコネクタ20を嵌挿するためのもので、ターミナル19を挿入するための複数の嵌合穴18aと、ターミナル19のフランジ19aが嵌り込む段部18bと、上記ロータ3の外径側に延長された側壁18cと、ターミナル19とコイル端末との接続作業用のガイド溝18dと、コイル端末との接続部を収納する収納溝18eと、相手側コネクタ20を嵌挿するための嵌挿穴18fの内面に設けられた異種嵌合防止キー溝18gと、異種嵌合防止キーが係合してコネクタ20を係止するための嵌合穴18hと、コネクタ20の弱ロック突起嵌合用の嵌合穴18jとが設けられている。また、ハウジング18に嵌挿されるコネクタ20は図4に示すように、上記ハウジング18の異種嵌合防止キー溝18gと嵌合穴18hとに嵌り込む異種嵌合防止キー20aと嵌合穴18jに嵌り込む弱ロック突起20bとが設けられ、異種嵌合防止キー20aの一方、もしくは、双方に面取り角度θが施されている。なお、21は励磁コイル17の外装テープ、22はハウジング18のコイル端末とターミナル19との接続部を覆うテーピングである。
【0011】
このように構成されたこの発明の実施の形態1の電磁連結装置において、ターミナル19はハウジング18の嵌合穴18aに装着され、コイル端末との接続部19bが接続に必要な長さより長く設定されると共に、図28(A)に示すようにガイド溝18dに位置を設定されながらハウジング18の外径側に約90度折り曲げられる。接続部19bにコイル端末が接続された後、ボビン16に励磁コイル17が巻線され、巻線後、図2(B)のように接続部19bの余剰部分が切断され、図2Cに示すように接続部19bは曲げ戻されて収納溝18e部に収納される。なお、電磁連結装置自体の動作は、上記従来例と同様である。
【0012】
励磁コイル17の巻線時には、導線に一定のテンションが加えられて巻線されるが、この発明においては上記のように、巻線完了後ターミナル19の接続部19bが曲げ戻されるため、励磁コイル17のコイル端末部17aの導線はテンションが開放されて撓みを有する状態となり、また、ターミナル19自体はフランジ部19aと曲げ戻し部の屈曲によりハウジング18に固定され、接続部は電気的な保護のためのテーピング処理を行うだけで樹脂固着をする必要はない。従って、温度変化や振動に対しても、 また、コネクタ20の脱着に対しても端末部の導線に応力が加わることがなく、接続作業に熟練を必要とせずに、使用中における断線事故を回避することができ、生産性と信頼性を高めることができるものである。
【0013】
また、ハウジング18にターミナル19の折り曲げ用ガイド溝18dを設けたので、ターミナル19が傾いて折り曲げられることがなく、隣接する他のターミナル19との間隙が正常に保たれ、この溝ピッチを自動巻線機の接続ピッチと合致させることにより自動巻線機による自動接続が可能となり、接続部を収納する収納溝18eは隣接するターミナルとの接触事故やテンションが開放されて撓んだ端末線同士の接触事故を防止する。さらに、ターミナル19の接続部19bを必要な所定値以上の長さに設定し、端末接続後、余剰部分を切断するようにしたので接続作業の容易化と信頼性の向上が可能となる。また、ハウジング18に碗型のロータ3の外径側に延長される側壁18cを設け、側壁18cを少なくともロータ3の外径までの高さとしたので、ハウジング18に嵌挿されるコネクタ20の外部リード線が折り返して配線されてもロータ3との接触事故が回避できるものである。
【0014】
さらに、ハウジング18のコネクタ嵌挿部18fに異種嵌合防止キー溝18gを設け、キー溝間隔Aをコネクタ20の異種嵌合防止キー20aのピッチと合致させると共に、異種嵌合防止キー20aが係合してコネクタ20を係止する嵌合穴18hを設けたので、多数のコネクタが混在する場合にも誤接続が防止でき、ハウジング18に取り付けられたコネクタ20が脱落することも防止できる。なお、コネクタ20をハウジング18から取り外すときの引張力は、異種嵌合防止キー20aのいずれか一方に、もしくは、双方に設けられた面取り角度θにより調整することができ、面取り角度θを零度とすることで半永久的な結合を得ることもできる。
【0015】
なお、上記の説明では、ターミナル19の接続部19bは所定値以上の長さに設定されるとしたが、自動巻線機によってはその必要がなく、必要な長さに設定して切断作業を省略することができ、ハウジング18のガイド溝18dを省略して収納溝18eのみ形成することもできる。また、ハウジング18のコネクタ嵌挿部18fと異種嵌合防止キー溝18gの合計深さDと、コネクタ20の異種嵌合キー20aを含む全高さHとの関係を、H>Dとして、コネクタ20を若干圧入気味とすることにより、図5に示すように異種嵌合キー20aがハウジング18の嵌合穴18hに確実に係合し、コネクタ20の引き抜き力を高くしてより確実な係止力を得ることもできる。
【0016】
実施の形態2.
図6は、この発明の実施の形態2の電磁連結装置のハウジングを示すもので、この実施の形態は、ハウジング18に嵌挿されるコネクタ20を保持するためのスナップフィット爪18kを設けたものである。このように構成することによりハウジング18に実施の形態1に示した嵌合穴18hを設けることなく、スナップフィット爪18kがコネクタ20を保持することができるので、使用中にコネクタ20が脱落することなく、取り外しの必要があるときは外部からの操作で簡単に取り外すことができ、取り外しに引張力を必要としないので、励磁装置を損傷することもない。
【0017】
【発明の効果】
以上に説明したように、この発明の電磁連結装置によれば、励磁装置のボビンと一体にコネクタを嵌挿するハウジングを設け、ハウジングの嵌合穴にフランジ部と接続部とを有するターミナルを取り付け、ターミナルの接続部をハウジング外径側に折り曲げてコイルの端末とを接続し、巻線後曲げ戻すようにしたのでコイルの端末部に撓みが生じ、温度変化や振動による応力が加わることがなくなると共に、この折り曲げ部の変形とフランジ部とによりターミナルの取り付け確実なものとなり、ハウジングにターミナルの折り曲げ用ガイド溝を設けたのでターミナルの折り曲げピッチが規制されて自動巻線機による接続作業が可能になるなど、生産性と信頼性の高いコイル端末接続部が得られる。また、ハウジングに、コネクタの異種嵌合防止キーが嵌挿され、嵌合される異種嵌合防止キー溝と嵌合穴を設け、スナップフィット爪を設けるようにしたのでコネクタの誤接続が防止されると共に、確実な接続が可能になる。さらに、ハウジングの外径側に、少なくともロータの外径に達する側壁を設けたので、コネクタの外部リードが回転体に接触するのを防止できるなど生産性と信頼性の高い電磁連結装置を得ることができるものである。
【図面の簡単な説明】
【図1】この発明の実施の形態1の電磁連結装置の構成を示す断面図である。
【図2】この発明の実施の形態1の励磁コイルの端末処理の説明図で、(A)は巻線完了状態、(B)はターミナルの余剰部切断状態、(C)は曲げ戻し状態を示す。
【図3】この発明の実施の形態1のハウジングを示すもので、(A)は上面図、(B)は側断面図、(C)は正面図である。
【図4】この発明の実施の形態1に使用するコネクタの外観図で、(A)は上面図、(B)は側面図である。
【図5】この発明の実施の形態1のハウジング部の説明図である。
【図6】この発明の実施の形態2のハウジング部の上面図である。
【図7】従来の電磁連結装置の構成を示す断面図である。
【符号の説明】
1 第一の中空軸、1a 突起部、2第二の中空軸、3 ロータ、
4 駆動部材、4a ギヤ、5 アマチュア、6 板バネ材、7 ヨーク、
15 励磁装置、16 ボビン、17 励磁コイル、18 ハウジング、
18a、18h、18j 嵌合穴、18c 側壁、18d ガイド溝、
18e 収納溝、18f コネクタ嵌挿穴、18g 異種嵌合防止キー溝、
18k スナップフィット爪、19 ターミナル、19b 接続部、
20 コネクタ、20a 異種嵌合防止キー、21、22 テーピング。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a small electromagnetic coupling device used for a paper feeding mechanism of a copying machine.
[0002]
[Prior art]
FIG. 7 is a cross-sectional view showing the configuration of a conventional electromagnetic coupling device. In the drawing, reference numeral 1 denotes a first hollow shaft fixedly engaged with a driven shaft (not shown) by a projection 1a in a rotational direction, and 2 denotes a first hollow shaft. A second hollow shaft 3 fixed to the hollow shaft 1 is a bowl-shaped rotor having a notch 3a, which is sandwiched and fixed between the first hollow shaft 1 and the second hollow shaft, and a gear 4a is provided on the outer periphery. A driving member having an armature rotatably held on the outer periphery of the second hollow shaft 2 and facing the rotor 3 via a gap g via a leaf spring material 6; The yoke of the stator is rotatably held on the outer periphery of the shaft 1 and is fixed at the mounting portion 7a during use. Reference numeral 8 denotes an excitation device fixed to the yoke 7, and the excitation device 8 includes a bobbin 9 and a bobbin 9. An exciting coil 10 to be wound; and a winding start and winding of the exciting coil 10 fixed to the bobbin 9. A terminal 11 for connecting another coil lead wire, a lead wire 12 connected to the terminal 11 and leading to the outside, and a cover 13 for protecting a connection portion of the terminal 11 and an outer periphery of the exciting coil 10. A resin 14 is filled in the cover 13 to protect the connection between the coil lead wire and the coil lead wire.
[0003]
In the conventional electromagnetic coupling device configured as described above, when the exciting coil 10 is excited, a magnetic flux Φ is generated in a magnetic path composed of the yoke 7 and the rotor 3 extended to the outer periphery of the yoke 7, As a result of the magnetic flux being diverted to the armature 5 by the magnetic resistance of the notch 3a provided, the armature 5 is attracted to the rotor 3, and the armature 5 is attracted to the rotor 3 against the elastic force of the leaf spring material 6 and driven. The rotation of the member 4 is transmitted to a driven shaft (not shown) via the rotor 3 and the hollow shafts 1 and 2, and the rotation transmission disappears when the excitation of the excitation coil 10 is cut off.
[0004]
[Problems to be solved by the invention]
Such a conventional small electromagnetic coupling device has the following problems. The exciting coil 10 is wound with a relatively thin conductive wire, and the winding start and end, that is, the terminal of the exciting coil 10 is connected to the external lead 12 via the terminal 11. Is subjected to tension at the time of winding, and when used, vibration and temperature change are often applied to cause fatigue fracture, and the filled resin 14 is effective in reducing stress due to vibration. There is little effect on the stress caused by the change, and there is no method other than caution at the time of connection work as a countermeasure against disconnection, which requires skill in the work and limits the reduction in manufacturing cost. Further, depending on the direction in which the external lead 12 is led out determined by the configuration of the main body, the external lead 12 may come into contact with the rotor 3 to cause a ground fault or disconnection.
[0005]
The present invention has been made to solve the above problems, and facilitates terminal treatment of an exciting coil, such as a disconnection accident of a terminal portion due to vibration or temperature change, a contact accident between an external lead and a rotating body, and the like. It is an object of the present invention to obtain a highly reliable electromagnetic coupling device without any problem.
[0006]
[Means for Solving the Problems]
An electromagnetic coupling device according to the present invention includes a bowl-shaped rotor fixed to a shaft and rotating with the shaft, a driving member having a coupling member that is loosely fitted to the shaft and rotatably coupled to and separated from the rotor, and a rotatable shaft. A yoke of a stator loosely fitted to the rotor to form a magnetic path with the rotor, an exciting device mounted on the yoke and having an exciting coil wound on a bobbin, and a connector for externally forming the exciting coil integrally formed with the bobbin of the exciting device A housing in which a terminal is mounted in a fitting hole of the housing and is connected to a terminal of an exciting coil.The housing has a storage groove for storing a connection portion between the terminal and the coil terminal. A guide groove for regulating the bending direction of the terminal is provided, and the terminal is fitted in a fitting hole of the housing from a fitting insertion side of the connector with a connection portion with the coil terminal. Is inserted so as to protrude from the side opposite to the insertion side, and a flange portion that regulates the insertion depth is provided on the insertion side, and the connection side with the coil terminal protruding from the fitting hole has the outer diameter of the housing after insertion. bent along the guide groove on the side, Ru Monodea configured as further this folded after connection of the coil terminals are accommodated in the receiving groove of which with the housing back.
[0007]
Further , a taping process for protecting the connection portion and the coil end is performed on the outer periphery of the guide groove and the storage groove of the housing.
Further, the connection portion of the terminal is set to a length equal to or longer than a predetermined value, and after the coil terminal is connected, the surplus portion is cut off.
[0008]
Further, a key groove for preventing different fitting of the same pitch as the key for preventing different fitting of the connector is provided on the inner wall of the connector fitting opening of the housing. Further, a fitting hole is provided in the key groove for preventing different fitting of the housing, in which the key for preventing different fitting of the connector is engaged and locked.
Furthermore, the total height of the connector fitting insertion hole and the different fitting prevention key groove of the housing is set to be smaller than the height of the connector including the different fitting preventing key by a predetermined value.
Further, the housing is provided with a snap fit claw for holding the connector to be inserted.
Further, a side wall extending at least to the outer diameter of the bowl-shaped rotor is provided on the outer peripheral portion of the housing.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
1 to 5 are a cross-sectional view and an explanatory diagram showing a configuration of an electromagnetic coupling device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view of the entire configuration, and FIG. 2 is an explanatory diagram of terminal processing of an exciting coil. , FIG. 3 is a structural view of the housing, FIG. 4 is an explanatory view of the connector, and FIG. 5 is an explanatory view of a state in which the connector is inserted into the housing. In the drawing, the same parts as those of the conventional example shown in FIG. Signs are attached.
In the figure, reference numeral 1 denotes a first hollow shaft fixedly engaged with a driven shaft (not shown) in a rotation direction by a projection 1a, 2 denotes a second hollow shaft fixed to the first hollow shaft 1, 3 Is a bowl-shaped rotor sandwiched and fixed between the first hollow shaft 1 and the second hollow shaft 2, 4 has a gear 4 a on the outer periphery, and is rotatably held on the outer periphery of the second hollow shaft 2. At the same time, a driving member 7 to which an armature 5 opposed to the rotor 3 via a gap g is mounted via a leaf spring material 6, and a driving member 7 is rotatably held on the outer periphery of the first hollow shaft 1. A stator yoke 15 fixed to the yoke 7 is an excitation device including a bobbin 16, an excitation coil 17 wound around the bobbin 16, and a housing 18 formed integrally with the bobbin 16. .
[0010]
The housing 18 is for inserting a multi-pole connector 20 for external connection, a plurality of fitting holes 18a for inserting terminals 19, a step portion 18b into which a flange 19a of the terminal 19 fits, A side wall 18c extended to the outer diameter side of the rotor 3, a guide groove 18d for connection work between the terminal 19 and the coil terminal, a storage groove 18e for storing a connection portion with the coil terminal, and a mating connector 20 are formed. A different fitting prevention key groove 18g provided on the inner surface of the fitting insertion hole 18f for fitting, a fitting hole 18h for engaging the different fitting prevention key to lock the connector 20; And a fitting hole 18j for fitting the weak lock projection. As shown in FIG. 4, the connector 20 to be inserted into the housing 18 has a different fitting prevention key 20a and a fitting hole 18j which fit into the different fitting prevention key groove 18g and the fitting hole 18h of the housing 18, respectively. A weak lock projection 20b to be fitted is provided, and one or both of the heterogeneous fitting prevention keys 20a have a chamfer angle θ. Reference numeral 21 denotes an exterior tape of the exciting coil 17, and reference numeral 22 denotes taping that covers a connection portion between the coil terminal of the housing 18 and the terminal 19.
[0011]
In the electromagnetic coupling device according to the first embodiment of the present invention configured as described above, the terminal 19 is mounted in the fitting hole 18a of the housing 18, and the connection portion 19b with the coil terminal is set to be longer than the length required for connection. At the same time, as shown in FIG. 28 (A), it is bent about 90 degrees toward the outer diameter side of the housing 18 while the position is set in the guide groove 18d. After the coil terminal is connected to the connecting portion 19b, the exciting coil 17 is wound on the bobbin 16, and after the winding, the surplus portion of the connecting portion 19b is cut off as shown in FIG. 2B, and as shown in FIG. 2C. The connection portion 19b is bent back and stored in the storage groove 18e. The operation of the electromagnetic coupling device itself is the same as in the above-described conventional example.
[0012]
When the exciting coil 17 is wound, the conductor is wound with a certain tension applied thereto. However, in the present invention, as described above, since the connecting portion 19b of the terminal 19 is bent back after completion of the winding, the exciting coil is wound. The conductor of the coil terminal portion 17a of 17 has a state in which the tension is released and has a bend, the terminal 19 itself is fixed to the housing 18 by the bending of the flange portion 19a and the bent back portion, and the connection portion is electrically protected. It is not necessary to fix the resin only by performing a taping process. Therefore, no stress is applied to the lead wires of the terminal part against temperature changes and vibrations, and also when the connector 20 is attached or detached, so that the connection work does not require skill and the disconnection accident during use is avoided. And increase productivity and reliability.
[0013]
Further, since the housing 18 is provided with the guide groove 18d for bending the terminal 19, the terminal 19 does not bend and bend, the gap between the adjacent terminal 19 is normally maintained, and the groove pitch is automatically wound. By matching with the connection pitch of the wire machine, automatic connection by the automatic winding machine becomes possible, and the storage groove 18e for storing the connection portion is formed between the terminal wires which are bent due to a contact accident with an adjacent terminal or a tension released. Prevent contact accidents. Further, the connecting portion 19b of the terminal 19 is set to have a length equal to or more than a necessary predetermined value, and after connecting the terminal, the surplus portion is cut off, so that the connection work can be simplified and the reliability can be improved. Further, the housing 18 is provided with a side wall 18c extending to the outer diameter side of the bowl-shaped rotor 3 and the height of the side wall 18c is at least up to the outer diameter of the rotor 3, so that the external leads of the connector 20 fitted and inserted into the housing 18 are provided. Even if the wire is folded and wired, a contact accident with the rotor 3 can be avoided.
[0014]
Further, a different fitting prevention key groove 18g is provided in the connector fitting insertion portion 18f of the housing 18, the key groove interval A matches the pitch of the different fitting prevention key 20a of the connector 20, and the different fitting prevention key 20a is engaged. Since the fitting hole 18h for locking the connector 20 is provided, erroneous connection can be prevented even when a large number of connectors are mixed, and the connector 20 attached to the housing 18 can be prevented from falling off. The pulling force when the connector 20 is detached from the housing 18 can be adjusted by the chamfer angle θ provided on one or both of the different-type mating prevention keys 20a, and the chamfer angle θ is set to zero degree. By doing so, a semi-permanent bond can be obtained.
[0015]
In the above description, the connection portion 19b of the terminal 19 is set to have a length equal to or longer than a predetermined value. However, depending on the automatic winding machine, this is not necessary. The guide groove 18d of the housing 18 may be omitted, and only the storage groove 18e may be formed. The relationship between the total depth D of the connector fitting insertion portion 18f of the housing 18 and the different fitting prevention key groove 18g and the total height H of the connector 20 including the different fitting key 20a is defined as H> D, Is slightly press-fitted, the different fitting key 20a is securely engaged with the fitting hole 18h of the housing 18 as shown in FIG. You can also get
[0016]
Embodiment 2 FIG.
FIG. 6 shows a housing of an electromagnetic coupling device according to a second embodiment of the present invention. In this embodiment, a snap fit claw 18k for holding a connector 20 to be inserted into a housing 18 is provided. is there. With this configuration, the snap fit claw 18k can hold the connector 20 without providing the fitting hole 18h shown in the first embodiment in the housing 18, so that the connector 20 falls off during use. In addition, when it is necessary to remove the exciter, it can be easily removed by an external operation, and no tensile force is required to remove the exciter.
[0017]
【The invention's effect】
As described above, according to the electromagnetic coupling device of the present invention, the housing for inserting the connector integrally with the bobbin of the excitation device is provided, and the terminal having the flange portion and the connection portion is attached to the fitting hole of the housing. , connects the terminals of the coil by bending the connecting portion of the terminal to the housing outer diameter side, since the return bend after winding occurs bending the terminal portion of the coil, it is no longer applied stress due to temperature change and vibration together, the mounting of the terminal by the deformation and the flange portion of the bent portion is made reliable, since there is provided a bending guide groove of the terminal in the housing is bent pitch of the terminal regulation can connect work by automatic winding machine As a result, a highly reliable coil terminal connection can be obtained. Moreover, the housing, the heterologous fitting prevention key connectors fitted, fitted set only heterologous fitting prevention keyway and the fitting hole to be engaged, snap since the provided fitting claw connector erroneous connection In addition to being prevented, a secure connection is made possible. Further, since the side wall reaching at least the outer diameter of the rotor is provided on the outer diameter side of the housing, it is possible to prevent the external lead of the connector from contacting the rotating body, and obtain a highly productive and reliable electromagnetic coupling device. Can be done.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a configuration of an electromagnetic coupling device according to a first embodiment of the present invention.
FIGS. 2A and 2B are explanatory diagrams of terminal processing of an exciting coil according to the first embodiment of the present invention, wherein FIG. 2A shows a completed winding state, FIG. 2B shows a surplus terminal cut state, and FIG. Show.
3A and 3B show a housing according to Embodiment 1 of the present invention, wherein FIG. 3A is a top view, FIG. 3B is a side sectional view, and FIG. 3C is a front view.
4A and 4B are external views of a connector used in the first embodiment of the present invention, wherein FIG. 4A is a top view and FIG. 4B is a side view.
FIG. 5 is an explanatory diagram of a housing portion according to the first embodiment of the present invention.
FIG. 6 is a top view of a housing according to a second embodiment of the present invention.
FIG. 7 is a cross-sectional view showing a configuration of a conventional electromagnetic coupling device.
[Explanation of symbols]
1 first hollow shaft, 1a protrusion, 2nd hollow shaft, 3 rotors,
4 drive member, 4a gear, 5 amateur, 6 leaf spring material, 7 yoke,
15 excitation device, 16 bobbin, 17 excitation coil, 18 housing,
18a, 18h, 18j fitting hole, 18c side wall, 18d guide groove,
18e storage groove, 18f connector insertion hole, 18g
18k snap fit claw, 19 terminal, 19b connection,
20 Connector, 20a Different mating prevention key, 21, 22 Taping.

Claims (8)

軸に固定され軸と共に回転する碗型のロータ、上記軸に回転自在に遊嵌され上記ロータに対して結合・開離する結合部材を有する駆動部材、上記軸に回転自在に遊嵌され上記ロータと共に磁路を形成する固定子のヨーク、このヨークに取り付けられボビンに励磁コイルが巻回された励磁装置、この励磁装置のボビンと一体に形成され励磁コイルの外部口出し用コネクタが嵌挿されるハウジング、このハウジングの嵌合穴に装着され上記励磁コイルの端末と接続されるターミナルを備え、前記ハウジングには、前記ターミナルと前記コイル端末部との接続部を収納する収納溝と、前記ターミナルの折り曲げ方向を規制するガイド溝が設けられ、前記ターミナルには、前記ハウジングの嵌合穴に前記コネクタの嵌挿側からコイル端末との接続部が前記嵌合穴の反挿入側に突出するように挿入されると共に、挿入側には挿入深さを規制するフランジ部が設けられており、前記嵌合穴から突出したコイル端末との接続側が挿入後に前記ハウジングの外径側に前記ガイド溝に沿って折り曲げられ、さらにコイル端末との接続後にこの折り曲げが戻されて前記ハウジングの収納溝内に収容されるように構成したことを特徴とする電磁連結装置。A bowl-shaped rotor fixed to a shaft and rotating with the shaft, a driving member having a coupling member rotatably loosely fitted to the shaft and coupled to / separated from the rotor, the rotor rotatably loosely fitted to the shaft A yoke of a stator that forms a magnetic path together with the yoke, an excitation device attached to the yoke and an excitation coil wound around a bobbin, and a housing integrally formed with the bobbin of the excitation device and into which an external output connector of the excitation coil is inserted A terminal fitted to the fitting hole of the housing and connected to a terminal of the exciting coil; a housing groove for housing a connection portion between the terminal and the coil terminal portion; and a bending of the terminal. guide grooves are provided for regulating the direction, the terminal connection portions of the coil terminal from the fitting挿側of the connector into the fitting hole of the housing The fitting hole is inserted so as to protrude from the opposite side of the insertion hole, and a flange portion that regulates the insertion depth is provided on the insertion side, and the connection side with the coil terminal protruding from the fitting hole is inserted. The electromagnetic wave is bent to the outer diameter side of the housing along the guide groove, and after being connected to the coil terminal, the bent is returned to be housed in the housing groove of the housing. Coupling device. ハウジングのガイド溝と収納溝との外周に接続部とコイル端末とを保護するテーピング処理がなされたことを特徴とする請求項1記載の電磁連結装置。2. The electromagnetic coupling device according to claim 1, wherein a taping process is performed on an outer circumference of the guide groove and the storage groove of the housing to protect the connection portion and the coil end. ターミナルの接続部が所定値以上の長さに設定され、コイル端末接続後、余剰部分が切断されるように構成したことを特徴とする請求項1または請求項2のいずれか1項記載の電磁連結装置。3. The electromagnetic device according to claim 1, wherein a connection portion of the terminal is set to a length equal to or greater than a predetermined value, and a surplus portion is cut off after connection of the coil terminal. Coupling device. ハウジングのコネクタ嵌挿用開口部の内壁に、コネクタの異種嵌合防止用キーと同一ピッチの異種嵌合防止キー溝が設けられたことを特徴とする請求項1〜請求項のいずれか1項記載の電磁連結装置。The inner wall of the connector fitting interpolating opening of the housing, any one of claims 1 to 3 in which the heterologous fitting prevention keyway heterologous fitting prevention keys the same pitch of the connector is characterized in that provided 1 Item 6. The electromagnetic coupling device according to Item 1. ハウジングの異種嵌合防止キー溝に、コネクタの異種嵌合防止用キーが係合して係止する嵌合穴が設けられたことを特徴とする請求項記載の電磁連結装置。5. The electromagnetic coupling device according to claim 4 , wherein a fitting hole for engaging and locking a key for preventing different mating of the connector is provided in the key groove for preventing different mating of the housing. ハウジングのコネクタ嵌挿穴と異種嵌合防止キー溝との合計高さが、コネクタの異種嵌合防止キーを含む高さより所定値小さく設定されたことを特徴とする請求項記載の電磁連結装置。6. The electromagnetic coupling device according to claim 5 , wherein a total height of the connector insertion hole of the housing and the key hole for preventing dissimilar mating is set smaller than a height of the connector including the key for preventing dissimilar mating. . ハウジングに、嵌挿されるコネクタを保持するためのスナップフィット爪が設けられたことを特徴とする請求項1〜請求項のいずれか1項記載の電磁連結装置。The electromagnetic coupling device according to any one of claims 1 to 4 , wherein a snap fit claw for holding the connector to be inserted is provided on the housing. ハウジングの外周部に少なくとも碗型ロータの外径まで延長された側壁が設けらたことを特徴とする請求項1〜請求項のいずれか1項記載の電磁連結装置。The electromagnetic coupling device according to any one of claims 1 to 7 , wherein a sidewall extending at least to an outer diameter of the bowl-shaped rotor is provided on an outer peripheral portion of the housing.
JP09417498A 1998-04-07 1998-04-07 Electromagnetic coupling device Expired - Lifetime JP3553364B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09417498A JP3553364B2 (en) 1998-04-07 1998-04-07 Electromagnetic coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09417498A JP3553364B2 (en) 1998-04-07 1998-04-07 Electromagnetic coupling device

Publications (2)

Publication Number Publication Date
JPH11294487A JPH11294487A (en) 1999-10-26
JP3553364B2 true JP3553364B2 (en) 2004-08-11

Family

ID=14102986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09417498A Expired - Lifetime JP3553364B2 (en) 1998-04-07 1998-04-07 Electromagnetic coupling device

Country Status (1)

Country Link
JP (1) JP3553364B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100614081B1 (en) * 1999-12-30 2006-08-22 한라공조주식회사 Field coil assembly
JP4766219B2 (en) * 2001-09-21 2011-09-07 シンフォニアテクノロジー株式会社 Electromagnetic clutch
JP4749029B2 (en) * 2005-04-28 2011-08-17 株式会社ダイケン Electromagnetic clutch
JP2006349119A (en) * 2005-06-20 2006-12-28 Kyocera Mita Corp Electromagnetic clutch
SE530323C2 (en) * 2006-09-26 2008-05-06 Foersvarets Materielverk Methods of making amorphous metal objects

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172312U (en) * 1984-04-23 1985-11-15 東北沖電気株式会社 Small electromagnet lead wire connection terminal structure
JPS642406U (en) * 1987-06-24 1989-01-09
JPH0648020B2 (en) * 1989-03-28 1994-06-22 小倉クラツチ株式会社 Electromagnetic coupling device
JPH07103899B2 (en) * 1989-09-21 1995-11-08 小倉クラツチ株式会社 Electromagnetic coupling device
JPH0626748Y2 (en) * 1989-10-13 1994-07-20 小倉クラツチ株式会社 Electromagnetic coupling device
JP2506099Y2 (en) * 1991-02-14 1996-08-07 自動車電機工業株式会社 solenoid
JPH0511410U (en) * 1991-07-23 1993-02-12 太平洋工業株式会社 Coating structure for the lead wire of the solenoid valve coil
JP2597232Y2 (en) * 1992-07-06 1999-07-05 本多通信工業株式会社 Connector mis-mating prevention structure
US5285882A (en) * 1992-12-23 1994-02-15 Dana Corporation Clutch with spacer for supporting a bearing
JPH0653831U (en) * 1992-12-28 1994-07-22 サンデン株式会社 Electromagnetic clutch
JP3406685B2 (en) * 1994-06-03 2003-05-12 株式会社東海理化電機製作所 Electromagnetic solenoid
JP2717936B2 (en) * 1994-07-28 1998-02-25 日本航空電子工業株式会社 Mis-mating prevention key
JP3193873B2 (en) * 1996-07-04 2001-07-30 株式会社日立国際電気 pager
JPH1041016A (en) * 1996-07-18 1998-02-13 Sumitomo Wiring Syst Ltd Connector
JPH10229010A (en) * 1997-02-18 1998-08-25 Yahei Miyazawa Electromagnetic coil

Also Published As

Publication number Publication date
JPH11294487A (en) 1999-10-26

Similar Documents

Publication Publication Date Title
KR910007671B1 (en) Stator for small-sized motor
US20050118886A1 (en) Motor
JPS63171149A (en) Brush holder assembly of commutator motor for power tool
US5952908A (en) Coil bobbin and an exciting coil assembly
JPH09296830A (en) Electromagnetic coupling device
JP3553364B2 (en) Electromagnetic coupling device
KR20180119997A (en) Motor
JPH10176726A (en) Electromagnetic coupling device
EP1168575B1 (en) Star connected rotor
JP3731008B2 (en) Small motor
JP3264573B2 (en) Small motor
JP2006349119A (en) Electromagnetic clutch
JPH04210747A (en) Bobbin structure for small-sized motor
JP4798481B2 (en) Motor and manufacturing method thereof
JP2934135B2 (en) Lead wire connection device for small motors
US6943983B2 (en) Flexible disk drive including sub circuit board with a hall element mounted thereon
KR101658348B1 (en) Step motor
JP3130230B2 (en) Exciter for electromagnetic coupling device
JP3198565B2 (en) Starter motor
KR19990052144A (en) Hall Sensor Mounting Structure of DC Motor
US11283340B2 (en) Coil assembly and stepping motor using same
JPH09232126A (en) Coil component
JP7076503B2 (en) Electric motor
JPH1014154A (en) Supporting device for electric apparatus lead wire
JP3155916B2 (en) Electric motor

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040427

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040428

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080514

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090514

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100514

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100514

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110514

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110514

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120514

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120514

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130514

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140514

Year of fee payment: 10

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term