JP3499463B2 - Compound motor that increases low-speed torque - Google Patents
Compound motor that increases low-speed torqueInfo
- Publication number
- JP3499463B2 JP3499463B2 JP16219799A JP16219799A JP3499463B2 JP 3499463 B2 JP3499463 B2 JP 3499463B2 JP 16219799 A JP16219799 A JP 16219799A JP 16219799 A JP16219799 A JP 16219799A JP 3499463 B2 JP3499463 B2 JP 3499463B2
- Authority
- JP
- Japan
- Prior art keywords
- electromagnet
- magnetic
- permanent magnet
- rotor
- stator
- 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 - Fee Related
Links
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は，永久磁石から成
る回転子と該回転子の外周に配置されたステータとから
成る低速トルクを増大させたり，高速トルクを抑制する
ことができる複合電動機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite electric motor capable of increasing low-speed torque and suppressing high-speed torque, which is composed of a rotor made of permanent magnets and a stator arranged on the outer circumference of the rotor.
【０００２】[0002]
【従来の技術】従来，発電・電動機は，直流式，誘導式
のものがあり，最近では，永久磁石を用いたタイプが高
い発電効率又は電動効率が得られ，簡単な構造で構成で
きるということから，最近，工業用機器に多く使用され
るようになった。発電・電動機について，電圧及び電流
が増加するに従って回転子（ロータ）の回転数が上昇す
ると，回転子には大きな遠心力が発生し，該遠心力に回
転子が耐えられないと，回転子が破壊されるので，回転
子が遠心力に耐えることが発電・電動機には要求され
る。そこで，回転子を構成する永久磁石部材の外周を補
強リング等の補強部材で補強し，回転子が遠心力に耐え
るように構成されている。2. Description of the Related Art Conventionally, there are DC and induction type generators and motors, and recently, a type using a permanent magnet has high power generation efficiency or electric efficiency, and can be constructed with a simple structure. Therefore, recently, it has been widely used for industrial equipment. In the generator / motor, when the rotation speed of the rotor (rotor) increases as the voltage and current increase, a large centrifugal force is generated in the rotor, and if the rotor cannot withstand the centrifugal force, the rotor Since the rotor is destroyed, the generator / motor is required to withstand the centrifugal force of the rotor. Therefore, the outer periphery of the permanent magnet member that constitutes the rotor is reinforced by a reinforcing member such as a reinforcing ring so that the rotor can withstand centrifugal force.
【０００３】例えば，特開昭６２−２７２８５０号公報
に開示された永久磁石式回転機は，回転子に永久磁石が
配置され，可動磁性体が封入された回転子の回転で径方
向へ可動磁性体を案内する磁極片形成用の容器を回転子
に設けたものである。また，特開平７−２３６２６０号
公報に開示された高出力交流発電・電動機は，回転速度
に応じて磁束密度を制御して発電量を適正に制御するも
のであり，回転子とステータとの間に制御リングを相対
回転可能に配置し，制御リングに接離可能な透磁性体を
設けたものである。For example, in a permanent magnet type rotating machine disclosed in Japanese Patent Laid-Open No. 62-272850, a permanent magnet is arranged in a rotor, and a rotor in which a movable magnetic member is enclosed rotates in a radial direction. The rotor is provided with a container for forming magnetic pole pieces for guiding the body. Further, the high-power AC generator / motor disclosed in Japanese Patent Laid-Open No. 7-236260 controls the magnetic flux density in accordance with the rotation speed to appropriately control the amount of power generation. The control ring is arranged so that it can rotate relative to the control ring, and a magnetically permeable body that can be brought into and out of contact with the control ring is provided.
【０００４】ところで，車両に搭載してエンジンから放
出される排気ガスを浄化するため，ディーゼルパティキ
ュレートフィルタが設けられているが，ディーゼルパテ
ィキュレートフィルタでは，フィルタで捕集されたカー
ボン，ＨＣ等から成るパティキュレートを加熱焼却して
フィルタを再生するため，ヒータが設けられている。ヒ
ータに使用する電力を，車両に設けた発電機やバッテリ
から供給するが，車両には十分な電力が無いのは一般的
であり，そのためにも車両等に設けた発電・電動機につ
いて，高効率で，低速時にも十分な電力を供給できるも
のが望まれている。By the way, a diesel particulate filter is provided in order to purify exhaust gas emitted from an engine mounted on a vehicle. In the diesel particulate filter, carbon, HC, etc. collected by the filter are used. A heater is provided to heat and incinerate the resulting particulates to regenerate the filter. The electric power used for the heater is supplied from the generator or battery installed in the vehicle, but it is general that the vehicle does not have sufficient electric power. For this reason, the generator / motor installed in the vehicle has high efficiency. Therefore, a device that can supply sufficient power even at low speed is desired.
【０００５】また，従来の冷凍車は，エバポレータとコ
ンプレッサを備えており，それらを駆動するため発電・
電動機が設けられているが，車両のエンジンが停止した
り，低速回転になると，発電機の発電電力や低速トルク
が低下し，冷凍機を駆動できないため，従来の冷凍車
は，電動機を設け，エンジンが停止した場合には，別の
電源（交流の１００Ｖ電源）から電力を取り出して電動
機を回してコンプレッサを駆動しているタイプがある。
一方，地球環境を守るためにＣＯ2 の削減が求められ，
自動車の燃費を良くする種々の技術開発されている。そ
の中で，電動機とエンジンを組み合わせたハイブリット
車が開発されつつあり，ハイブリット車には低速トルク
を大幅に改善した電動機の開発が求められている。Further, the conventional refrigeration vehicle is equipped with an evaporator and a compressor, and a power generator and a compressor are used to drive them.
Although an electric motor is provided, when the engine of the vehicle is stopped or the vehicle rotates at a low speed, the electric power generated by the generator and the low-speed torque are reduced, and the refrigerator cannot be driven. When the engine stops, there is a type in which electric power is taken out from another power source (AC 100V power source) and the electric motor is rotated to drive the compressor.
On the other hand, reduction of CO 2 is required to protect the global environment,
Various technologies have been developed to improve the fuel efficiency of automobiles. Among them, hybrid vehicles that combine electric motors and engines are being developed, and hybrid vehicles are required to develop electric motors with significantly improved low-speed torque.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら，永久磁
石を用いた発電・電動機は，構造が簡単であり，高速回
転で，高出力を出すことができるが，回転数が小さい時
には，余り大きなトルクを出すことができない。発電・
電動機における永久磁石の磁力が固定されているので，
磁力を増すためには磁石のサイズを大型にする外に，発
電・電動機自体を大型に構成しなければ低速での磁力を
大きくすることができないからである。永久磁石では，
磁束の発生領域は永久磁石のサイズが決まり，ステータ
コアを流れる磁束が決まっているので，回転子が高速で
回転すれば，磁束密度が多く成り，発電力も大きくなる
が，回転子が低速で回転すれば，磁束密度が少なくなっ
て発電力やトルクが低下する。However, a generator / motor using a permanent magnet has a simple structure and can produce high output at high speed rotation, but when the rotational speed is small, a too large torque is generated. I can't put it out. Power generation
Since the magnetic force of the permanent magnet in the electric motor is fixed,
This is because, in order to increase the magnetic force, the magnetic force at low speed cannot be increased unless the generator / motor itself is large in addition to increasing the size of the magnet. With a permanent magnet,
Since the size of the permanent magnets is determined in the magnetic flux generation area and the magnetic flux flowing through the stator core is determined, if the rotor rotates at high speed, the magnetic flux density increases and the power generation increases, but the rotor rotates at low speed. If so, the magnetic flux density will decrease and the power generation and torque will decrease.
【０００７】また，発電・電動機において，永久磁石を
用いた回転子を使用すれば，小型で高速化することがで
きるが，工作機械のような使用環境が厳しい場所では，
その構造が複雑になり，工作機械に組み込むことが困難
であり，成立が難しい。また，小型の回転子を組み込ん
だ発電・電動機は，運転するには永久磁石とステータと
の距離が極力小さくなるように構成することが好まし
い。そのためには，回転子の外周面を高精度に切削する
ことが必要になる。Further, in a generator / motor, if a rotor using a permanent magnet is used, it is possible to reduce the size and increase the speed. However, in a place where a working environment such as a machine tool is severe,
Its structure becomes complicated, and it is difficult to build it in a machine tool, and it is difficult to establish it. Further, it is preferable that the generator / motor incorporating a small rotor is constructed so that the distance between the permanent magnet and the stator is as small as possible for operation. For that purpose, it is necessary to cut the outer peripheral surface of the rotor with high accuracy.
【０００８】また，永久磁石を用いた発電・電動機は，
ステータコアを流れる磁束が決まっているので，低速か
ら高速まで同一のトルクを得ることができない。発電・
電動機では，低速でのトルクを増加させるため，ステー
タコアの電流を増加させ，ステータ歯部の磁力を増加さ
せ，軸トルクを増加させなければならない。しかしなが
ら，この方法でも限界があり，例えば，直流モータ程の
トルクを得ることはできない。また，回転子の高速回転
では，永久磁石による磁力が残存しているため，ステー
タの歯部に強い磁界が作用し，ステータコイルには逆起
電力が作用する。この逆起電力に逆らって強い電流を電
磁石コイルに流さないと，モータの機能を発揮できな
い。また，発電・電動機を大型にするには，コストや製
作費，或いはスペース等について解決しなければならな
い問題がある。発電・電動機における発電電力やトルク
は回転子の回転速度と磁界の強さとの積であるので，発
電・電動機は回転子の回転速度が速い程，発電電力やト
ルクが大きくなる。また，発電・電動機における磁界の
強さは，永久磁石の磁力とその面積との積であるので，
発電・電動機は永久磁石の面積が大きく，磁力が強い
程，発電電力が大きくなる。A generator / motor using a permanent magnet is
Since the magnetic flux flowing through the stator core is fixed, the same torque cannot be obtained from low speed to high speed. Power generation
In a motor, in order to increase the torque at low speed, it is necessary to increase the current in the stator core, increase the magnetic force in the stator teeth, and increase the shaft torque. However, this method also has a limit, and for example, it is not possible to obtain the torque equivalent to that of a DC motor. Further, when the rotor rotates at a high speed, since the magnetic force of the permanent magnet remains, a strong magnetic field acts on the teeth of the stator and a counter electromotive force acts on the stator coil. The motor function cannot be achieved unless a strong current is applied to the electromagnet coil against this back electromotive force. In addition, in order to increase the size of the generator / motor, there is a problem that cost, manufacturing cost, space, etc. must be solved. Since the generated power and torque in the generator / motor are the product of the rotation speed of the rotor and the strength of the magnetic field, the generated power and torque of the generator / motor increase as the rotation speed of the rotor increases. Also, the strength of the magnetic field in the generator / motor is the product of the magnetic force of the permanent magnet and its area.
In a generator / motor, the larger the permanent magnet area and the stronger the magnetic force, the larger the generated power.
【０００９】[0009]
【課題を解決するための手段】この発明の目的は，回転
軸に設けた永久磁石式回転子の両端側に電磁石をそれぞ
れ設け，該電磁石による磁力を透磁材を通して永久磁石
の背面に導き，永久磁石の磁力に加算することによって
低速時の軸トルクを増加させ，特に，電磁石コアの磁束
の通路面積が小さいのを改善するため，永久磁石による
磁力の回転方向と電磁石による磁界の旋回方向とを別ル
ートのループに構成し，十分な磁束密度を確保し，電磁
石による磁力を永久磁石式回転子の磁力に加算又は減算
する制御を行って，永久磁石部材の磁石片を周方向に非
磁性部材を介して異なった磁極になるように順次配置し
て円筒状の多極型構造に構成し，永久磁石部材の内周側
には前記電磁石の磁束が流れる透磁性の優れた電磁石コ
アを配置したことを特徴とした低速トルクを増大させた
複合電動機を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide electromagnets on both ends of a permanent magnet type rotor provided on a rotary shaft, and to guide the magnetic force of the electromagnets to the back surface of the permanent magnet through a magnetic permeable material. In order to increase the axial torque at low speed by adding to the magnetic force of the permanent magnet, and especially to improve the passage area of the magnetic flux of the electromagnet core, in order to improve the direction of rotation of the magnetic force of the permanent magnet and the direction of rotation of the magnetic field of the electromagnet, Is configured as a loop of another route, secures a sufficient magnetic flux density, and controls the addition or subtraction of the magnetic force of the electromagnet to the magnetic force of the permanent magnet rotor to make the magnet piece of the permanent magnet member non-magnetic in the circumferential direction. The magnets are sequentially arranged to have different magnetic poles through a member to form a cylindrical multi-pole structure, and an electromagnet core with excellent magnetic permeability in which the magnetic flux of the electromagnet flows is arranged on the inner peripheral side of the permanent magnet member. What you did To provide a composite motor with increased low speed torque and features.
【００１０】この発明は，ハウジングに回転可能に支持
された回転軸，該回転軸に取り付けられた回転子，該回
転子に対応して外周に配置され且つ前記ハウジングに固
定されたステータ，及び前記回転子の両端側の前記回転
軸上にそれぞれ配置された電磁石を有し，前記回転子
は，前記回転軸上の外周に配置され且つ周方向に隔置し
て軸方向に前記電磁石に到達するように延びる非磁性材
を介在した透磁材から成る円筒状の電磁石コア，該電磁
石コア上に円筒状に配置された全周にわたって透磁材か
ら成る円筒状の回転子ヨーク，及び該回転子ヨークの外
周に周方向に隔置して軸方向に延びる非磁性部材を介在
した磁極が交互に異なる状態に円筒状に周方向に隣接し
てそれぞれ配置された磁石片から成る永久磁石部材から
構成され，前記電磁石は前記回転軸上の前記電磁石コア
の端部と該端部に対応して前記ハウジングの磁路ケース
に配置された円筒状の電磁石コイルとから構成され，前
記電磁石コアは軸方向で且つ交互に逆方向に磁束が流れ
るように周方向に離間させる切欠き部が円周上に隔置し
て形成されていることから成る複合電動機に関する。According to the present invention, there is provided a rotating shaft rotatably supported by a housing, a rotor attached to the rotating shaft, a stator arranged on the outer periphery corresponding to the rotor and fixed to the housing, and The rotor has electromagnets arranged on both ends of the rotor on the rotary shaft, and the rotor is arranged on the outer periphery of the rotary shaft and is circumferentially spaced to reach the electromagnet in the axial direction. -Like cylindrical electromagnet core with a non-magnetic material extending between them, a cylindrical rotor yoke made of magnetic permeability over the entire circumference, which is arranged on the electromagnet core in a cylindrical shape, and the rotor The magnetic poles with nonmagnetic members that are spaced apart in the circumferential direction and extend in the axial direction on the outer circumference of the yoke are adjacent to each other in a cylindrical shape in the circumferential direction in an alternating manner.
A permanent magnet member composed of magnet pieces respectively disposed on the rotary shaft, and the electromagnet has a cylindrical shape disposed on the magnetic path case of the housing corresponding to the end portion of the electromagnet core on the rotating shaft and the end portion. And an electromagnet coil, wherein the electromagnet core is formed with notches which are circumferentially spaced so that magnetic flux flows in the axial direction and alternately in opposite directions. Regarding a composite electric motor.
【００１１】前記電磁石コアの前記透磁材は，前記永久
磁石部材の磁極へ前記回転子ヨークを通じて前記電磁石
の磁束が流れ込み前記ステータ側に流れるように，前記
永久磁石部材の前記磁石片分だけの幅の板材として軸方
向に延びている。The magnetically permeable material of the electromagnet core is provided only for the magnet pieces of the permanent magnet member so that the magnetic flux of the electromagnet flows into the magnetic poles of the permanent magnet member through the rotor yoke and flows toward the stator. It extends axially as a plate of width.
【００１２】この複合電動機は，前記永久磁石部材の磁
極に沿って磁束が流れるように，前記電磁石コアの前記
透磁部材は外周側がＮ極で内周側がＳ極の前記永久磁石
部材に対応して配置され，また，隣接する前記透磁部材
は外周側がＳ極で内周側がＮ極の前記永久磁石部材に対
応して配置されている。In this composite motor, the magnetic permeability member of the electromagnet core corresponds to the permanent magnet member having an N pole on the outer peripheral side and an S pole on the inner peripheral side so that the magnetic flux flows along the magnetic pole of the permanent magnet member. The adjacent magnetically permeable members are arranged corresponding to the permanent magnet members having an S pole on the outer peripheral side and an N pole on the inner peripheral side.
【００１３】前記永久磁石部材を持つ前記回転子を通過
して前記ステータ側に流れる磁束は，前記磁石片から前
記回転子ヨーク，隣接する前記磁石片，ステータ歯部，
ステータコア及び別のステータ歯部を通じて最初の前記
磁石片から成る磁路を流れるか，又は逆磁極の側ではそ
の逆方向の磁路を流れ，前記回転子ヨークの半径方向の
厚さは前記永久磁石部材の磁束でほぼ飽和するように構
成されている。The magnetic flux flowing through the rotor having the permanent magnet member and flowing to the stator side is composed of the magnet pieces, the rotor yoke, the adjacent magnet pieces, the stator tooth portions,
The magnetic path consisting of the first magnet piece flows through the stator core and another stator tooth portion, or flows in the opposite magnetic path on the side of the reverse pole, and the radial thickness of the rotor yoke is the permanent magnet. It is configured to be almost saturated with the magnetic flux of the member.
【００１４】前記電磁石によって発生する磁束は，前記
電磁石コアから前記回転子ヨーク，前記磁石片，ステー
タ歯部，ステータコア，ハウジングヨーク及び前記電磁
石コイルを通じて最初の前記電磁石から成る磁路を流れ
るか，又はその逆方向の磁路を流れるように構成されて
いる。The magnetic flux generated by the electromagnet flows from the electromagnet core through the rotor yoke, the magnet piece, the stator tooth portion, the stator core, the housing yoke and the electromagnet coil in the first magnetic path formed by the electromagnet, or It is configured to flow in a magnetic path in the opposite direction.
【００１５】前記電磁石コアは，フェライト材，Ｍｏ−
パーマロイ，センダスト等の透磁性の優れた材料から構
成されている。The electromagnet core is made of ferrite material, Mo-
It is composed of materials with excellent magnetic permeability such as permalloy and sendust.
【００１６】前記電磁石の磁力を制御するコントローラ
は，前記回転軸の低速に応答して前記電磁石コイルに通
電して前記電磁石コアを通過する磁力線を前記永久磁石
部材で発生する磁力線に加算して低速トルクをアップさ
せる制御を行う。また，前記電磁石の磁力を制御するコ
ントローラは，前記回転軸の高速に応答して，前記永久
磁石部材で発生する磁力線を相殺させる方向に前記電磁
石コアを通過する磁力線を発生させるように，前記電磁
石コイルに低速時とは逆方向に通電し，高速トルクを抑
制する制御を行う。更に，前記電磁石の磁力を制御する
コントローラは，電動機調整の作業時にコキングを除く
ため，低速時とは逆方向に前記電磁石に通電し，前記永
久磁石部材の磁力をほぼ零にする制御を行う。The controller for controlling the magnetic force of the electromagnet responds to the low speed of the rotating shaft by energizing the electromagnet coil to add the magnetic force line passing through the electromagnet core to the magnetic force line generated by the permanent magnet member to reduce the speed. Control to increase the torque. Further, the controller controlling the magnetic force of the electromagnet generates the magnetic force line passing through the electromagnet core in a direction of canceling the magnetic force line generated in the permanent magnet member in response to the high speed of the rotating shaft. The coil is energized in the direction opposite to that at low speed to control high-speed torque. Further, the controller for controlling the magnetic force of the electromagnet removes the coking during the electric motor adjustment work, so that the electromagnet is energized in the direction opposite to that at the time of low speed and the magnetic force of the permanent magnet member is controlled to be substantially zero.
【００１７】この複合電動機は，上記のように構成した
ので，磁路ケースの内周面に円筒状に巻き上げられた電
磁石コイルに通電すると，回転軸に配置された円筒状の
電磁石コアに磁力が発生し，電磁石の磁力が永久磁石部
材で発生する磁力に追加され，低速トルクを増大させる
ことができる。また，回転軸が高速の時には，電磁石コ
イルに逆方向に通電して発生する電磁石の逆磁力が永久
磁石部材で発生する磁力を減少させ，過大な磁力を減少
させることができ，高速トルクを抑制することができ
る。また，電磁石コアに設けた切欠き部は，電磁石コア
を通る磁力の流れを確実に独立させ，それぞれの磁束が
リークしないように，電磁石の磁力が永久磁石部材の磁
石片へとガイドさせることができる。コントローラは，
低速時に電磁石の電磁石コイルに通電する制御を行うよ
うに設定しておけば，低速時の軸トルクをアップさせる
ことができ，また，高速時に電磁石コイルに低速時とは
逆方向に通電し，高速時の高起電力を減少させることが
できる。Since this composite motor is constructed as described above, when the electromagnet coil wound in a cylindrical shape on the inner peripheral surface of the magnetic path case is energized, a magnetic force is applied to the cylindrical electromagnet core arranged on the rotating shaft. The generated magnetic force of the electromagnet is added to the magnetic force generated by the permanent magnet member, and the low speed torque can be increased. Also, when the rotating shaft is at high speed, the reverse magnetic force of the electromagnet, which is generated by energizing the electromagnet coil in the opposite direction, reduces the magnetic force generated by the permanent magnet member, and can reduce the excessive magnetic force, suppressing high-speed torque. can do. In addition, the notch provided in the electromagnet core ensures that the flow of the magnetic force through the electromagnet core is independent, and the magnetic force of the electromagnet can be guided to the magnet piece of the permanent magnet member so that each magnetic flux does not leak. it can. The controller is
It is possible to increase the axial torque at low speed by setting the control to energize the electromagnet coil of the electromagnet at low speed, and to energize the electromagnet coil in the opposite direction at low speed at high speed, High electromotive force can be reduced.
【００１８】また，前記電磁石コアの密着部は，回転子
の両端面にそれぞれ密着して前記永久磁石部材の外周面
に設けた補強部材の位置まで延びて回転子の外周面とほ
ぼ同じ位置まで延びているので，例えば，４極の場合
に，永久磁石部材の外側がＮ極で内側がＳ極では，磁力
線が同方向になるように電磁石の電磁石コイルが巻か
れ，その端部が永久磁石部材及び磁路部材に接するよう
に配設されている。逆方向の磁石端部は電磁石コアの切
欠き部によって，磁力が侵入しない構造に形成されてい
る。上記のように，電磁石は，永久磁石の磁力に合致し
た磁力を構成するように回転子の両端部にそれぞれ付設
され，それぞれの磁力線を作るように配置されている。Further, the close contact portion of the electromagnet core is in close contact with both end surfaces of the rotor and extends to the position of the reinforcing member provided on the outer peripheral surface of the permanent magnet member to reach substantially the same position as the outer peripheral surface of the rotor. For example, in the case of four poles, when the outer side of the permanent magnet member is the N pole and the inner side is the S pole, the electromagnet coil of the electromagnet is wound so that the magnetic lines of force are in the same direction, and the end portion thereof is the permanent magnet. It is arranged so as to contact the member and the magnetic path member. The magnet end in the opposite direction is formed by a notch in the electromagnet core so that magnetic force does not enter. As described above, the electromagnets are attached to both ends of the rotor so as to form a magnetic force that matches the magnetic force of the permanent magnet, and are arranged so as to generate respective magnetic force lines.
【００１９】この複合電動機は，回転数の小さい時に応
答してコントローラが電磁石の電磁石コイルに通電し，
電磁石による磁束を増加させれば，通常の回転子のトル
クより数倍のトルクを出すことができ，それによって，
従来の電動機の欠点を解決して低速トルクを増大させる
ことができる。例えば，永久磁石の磁束密度は，１．５
Ｔ程度とすると，電磁石の磁力と合わせてステータ側は
２．３Ｔ程入力できる。永久磁石式電動機の駆動トルク
Ｔは，次式で表される。
Ｔ＝（ｍ／２）×２1/2 ×Ｐ×ｋw ・ω×φg ×Ｉｓ
但し，ｍ：相数，Ｐ：極数，ｋw ・ω：電機子有効直列
巻数，φg ：磁束密度，Ｉｓ：コイルを流れる電流
即ち，永久磁石では通常１．５Ｔ程しか磁力が発生せ
ず，電動機のトルクが磁束密度の関数であるので，通常
用いられる珪素鋼板等の透磁率２．３Ｔを十分に利用し
て高いトルクを得ることができれば，極めて好都合の電
動機を得ることができる。複合電動機では，磁束密度を
大きくする程，また，電流を増す程，トルクを大きくす
ることができる。In this composite electric motor, the controller energizes the electromagnet coil of the electromagnet in response to a low rotation speed,
By increasing the magnetic flux from the electromagnet, it is possible to produce several times more torque than the torque of a normal rotor.
It is possible to solve the drawbacks of the conventional electric motor and increase the low speed torque. For example, the magnetic flux density of a permanent magnet is 1.5
If it is about T, the stator side can input about 2.3T together with the magnetic force of the electromagnet. The drive torque T of the permanent magnet type electric motor is expressed by the following equation. T = (m / 2) × 2 1/2 × P × k w · ω × φ g × Is where m: number of phases, P: number of poles, k w · ω: effective series winding number of armature, φ g : Magnetic flux density, Is: The current flowing through the coil, that is, a permanent magnet usually produces a magnetic force of only about 1.5T, and the torque of the electric motor is a function of the magnetic flux density. Therefore, the permeability of a commonly used silicon steel sheet, such as 2.3T, is 2.3T. If a high torque can be obtained by making full use of, the extremely convenient electric motor can be obtained. In the composite motor, the torque can be increased as the magnetic flux density is increased and the current is increased.
【００２０】この複合電動機における永久磁石部材を持
つ前記回転子と前記ステータとによって発生する磁束
（磁力線）は，永久磁石の磁石片→回転子ヨーク→隣接
する磁石片→ステータ歯部→ステータコア→別のステー
タ歯部→最初の前記磁石片から成る磁路に磁束が流れる
か，又はその逆方向の磁路に磁束が流れることになるの
で，回転子の永久磁石の磁石片と隣接する磁石片との間
に回転子ヨークから成る磁路を作ることによって磁力線
がスムースに流れることになる。従って，永久磁石によ
る磁束密度の１．５Ｔの大きさの磁力が回転子ヨークを
通って流れることになる。回転子ヨークの磁力は，永久
磁石の磁力で満たされるので電磁石の磁力が回転子ヨー
クを通過しようとしても流れることはできない。The magnetic flux (lines of magnetic force) generated by the rotor having the permanent magnet member and the stator in this combined electric motor is the magnet piece of the permanent magnet → rotor yoke → adjacent magnet piece → stator tooth portion → stator core → separate. Of the stator tooth portion → the magnetic flux will flow in the magnetic path consisting of the first magnet piece or in the magnetic path in the opposite direction. By forming a magnetic path composed of a rotor yoke between the magnetic field lines, magnetic force lines smoothly flow. Therefore, a magnetic force having a magnetic flux density of 1.5 T due to the permanent magnets flows through the rotor yoke. Since the magnetic force of the rotor yoke is filled with the magnetic force of the permanent magnet, even if the magnetic force of the electromagnet tries to pass through the rotor yoke, it cannot flow.
【００２１】一方，永久磁石の両端に配置した電磁石を
構成する電磁石コアは，軸方向で且つ交互に逆方向に磁
束が流れるように軸方向に離間させる切欠き部が周方向
に隔置して形成された櫛歯状構造を有するので，例え
ば，回転子の外側にＮ極を配置した永久磁石側には磁力
線が内側から外側に向かうように流れ，回転子の外側に
Ｓ極を配置した永久磁石側には磁力線が外側から内側に
向かうように，電磁石に磁界をかける。従って，前記電
磁石によって発生する磁束は，前記電磁石コア→前記回
転子ヨーク→前記磁石片→ステータ歯部→ステータコア
→ハウジングヨーク→前記電磁石コイル→最初の前記電
磁石の磁路に磁束が流れるか，又はその逆方向に磁束が
流れることになる。電磁石コアにおけるＮ極の櫛歯とＳ
極の櫛歯とは，切欠き部又は非磁性部材の磁束遮断部で
仕切られているので，磁束遮断部では磁力が通り難くな
っている。また，回転子ヨークは，永久磁石の磁力で飽
和しているので，櫛歯コアのＮ極側からＳ極側への侵入
はできない。また，高速回転時に，電磁石のＮ極がＳ極
になり，Ｓ極がＮ極になった場合も，回転子ヨークの磁
束が飽和しているので，永久磁石側へ磁力線が向かうこ
とになる。On the other hand, in the electromagnet cores forming the electromagnets arranged at both ends of the permanent magnet, the notches for axially separating so that the magnetic flux flows in the opposite directions in the axial direction are alternately arranged in the circumferential direction. Since it has a comb-tooth structure formed, for example, magnetic lines of force flow from the inside to the outside on the permanent magnet side where the N pole is arranged outside the rotor, and the S pole is arranged outside the rotor. A magnetic field is applied to the electromagnet so that the lines of magnetic force go from the outside to the inside of the magnet. Therefore, the magnetic flux generated by the electromagnet may be the electromagnet core → the rotor yoke → the magnet piece → stator teeth → stator core → housing yoke → electromagnetic coil → the first magnetic path of the electromagnet, or The magnetic flux will flow in the opposite direction. N pole comb teeth and S in the electromagnet core
Since the comb teeth of the pole are partitioned by the cutout portion or the magnetic flux blocking portion of the nonmagnetic member, it is difficult for the magnetic flux to pass through the magnetic flux blocking portion. Further, since the rotor yoke is saturated with the magnetic force of the permanent magnet, it cannot penetrate from the N pole side to the S pole side of the comb tooth core. Further, when the N pole of the electromagnet becomes the S pole and the S pole becomes the N pole at the time of high speed rotation, the magnetic flux of the rotor yoke is saturated, so that the magnetic force lines are directed to the permanent magnet side.
【００２２】この複合電動機は，上記のように構造され
ているので，電動機として作動する時に，低速でのトル
クを数倍に増加させることができ，また，高速回転で
は，電磁石の発生磁力を逆に向かわせることにより，ス
テータの磁束密度を小さくさせ，逆起電力を抑制させ，
無駄な電力を投入せずに済むことになる。Since this composite electric motor is constructed as described above, when it operates as an electric motor, the torque at low speed can be increased several times, and at high speed rotation, the magnetic force generated by the electromagnet is reversed. To reduce the magnetic flux density of the stator and suppress back electromotive force.
It is not necessary to input unnecessary power.
【００２３】[0023]
【発明の実施の形態】以下，図面を参照して，この発明
による複合電動機の実施例を説明する。図１はこの発明
による複合電動機を示す軸方向の断面図，図２は図１の
複合電動機におけるＡ−Ａ断面における断面図，及び図
３は図１の複合電動機の作動を示す処理フロー図であ
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a composite motor according to the present invention will be described below with reference to the drawings. 1 is an axial sectional view showing a composite electric motor according to the present invention, FIG. 2 is a sectional view taken along the line AA in the composite electric motor of FIG. 1, and FIG. 3 is a process flow chart showing the operation of the composite electric motor of FIG. is there.
【００２４】この発明による複合電動機は，例えば，回
転軸２をコージェネレーションシステムのエンジンに適
用して発電・電動機として適用したり，複合電動機とエ
ンジンを併設したハイブリット自動車のエンジンに連結
することによってエンジンの回転力で発電する発電・電
動機として適用したり，或いは工作機械等の機械装置に
コントローラの指令で作動させる小型の複合電動機とし
て適用できる。The composite electric motor according to the present invention is applied, for example, to the engine of a hybrid vehicle in which the rotary shaft 2 is applied to a cogeneration system engine as a power generator / electric motor, or the hybrid electric motor and the engine are connected together. It can be applied as a generator / motor that generates electric power with the rotational force of, or as a small compound electric motor that operates mechanical devices such as machine tools according to the command of the controller.
【００２５】この実施例の複合電動機は，ねじ２７で互
いに連結された一対のハウジング部材１Ａ，ハウジング
部材１Ａの両端にそれぞれに固定された磁路ケース１Ｂ
及び磁路ケース１Ｂの外側を被覆する非磁性材のカバー
部材１Ｃから成るハウジング１，磁路ケース１Ｂに非磁
性材（図示せず）を介在して配置された一対の軸受１３
によって回転可能にそれぞれ支持されている回転軸２，
回転軸２に固定されている永久磁石部材５から成る回転
子３，及び回転子3 の外周で回転子3 との間に隙間１７
を形成してハウジング１に固定されているステータ（固
定子）４を有している。回転子3 は，その両端が回転軸
２に設けられたねじ２４に押さえ板１２を介して固定ナ
ット１１が螺入され，回転子3 が回転軸２に固定されて
いる。押さえ板１２の外周面は磁路ケース１Ｂに微小ク
リアランスを持って近接している。また，回転軸２に
は，例えば，回転軸２の端部に入力となるベルトプーリ
が固定され，ベルトプーリにエンジンの出力軸に取り付
けたベルトが掛けられている。ステータ４は，積層され
た薄板のステータコア２０の空所２５にステータコイル
１４が巻き付けられている。ステータコア２０における
空所２５の内周側に隙間２１が形成され，隙間２１によ
って隣接するステータコア２０の歯部２０Ａが遮断され
ている。The compound electric motor of this embodiment has a pair of housing members 1A connected by screws 27, and a magnetic path case 1B fixed to both ends of the housing member 1A.
And a pair of bearings 13 arranged in the magnetic path case 1B with a non-magnetic material (not shown) interposed between the housing 1 and a cover member 1C made of a non-magnetic material that covers the outside of the magnetic path case 1B.
Rotation shafts 2, which are rotatably supported by
A gap 17 is formed between the rotor 3 and the rotor 3, which are composed of the permanent magnet member 5 fixed to the rotary shaft 2 and the outer periphery of the rotor 3.
And a stator (stator) 4 that is fixed to the housing 1 by forming a. The rotor 3 is fixed to the rotary shaft 2 by fixing screws 11 provided on the rotary shaft 2 at both ends thereof with fixing nuts 11 screwed through the pressing plate 12. The outer peripheral surface of the pressing plate 12 is close to the magnetic path case 1B with a minute clearance. Further, for example, a belt pulley serving as an input is fixed to the end of the rotary shaft 2 on the rotary shaft 2, and a belt attached to the output shaft of the engine is hung on the belt pulley. In the stator 4, the stator coil 14 is wound around the void 25 of the laminated thin stator core 20. A gap 21 is formed on the inner peripheral side of the space 25 in the stator core 20, and the tooth portion 20A of the adjacent stator core 20 is blocked by the gap 21.
【００２６】この複合電動機は，ハウジング１に固定さ
れたステータ４に対して回転可能に支持された回転軸２
のトルクを増加させるため，回転子3 の両端側の回転軸
２上にそれぞれ配置された円筒状の電磁石コア６と電磁
石コア６に対応してハウジング１の磁路ケース１Ｂに配
置された円筒状の電磁石コイル１９とから成る電磁石９
を設けている。特に，この複合電動機は，電磁石９によ
って発生する磁力を透磁性体内で飽和させることなくス
ムースに流すため，回転軸２上を長手方向に延びる電磁
石コア６を設けると共に，永久磁石部材５を持つ回転子
３とステータ４とで発生する磁力を短い通路中でスムー
スに流すため電磁石コア６上を長手方向に延びる回転子
ヨーク７を設けたことに特徴を有する。電磁石コア６
は，永久磁石部材５の磁極に沿って磁束が流れるよう
に，永久磁石部材５の磁石片５Ａ分だけ板材を周方向に
積層した積層板材６Ａと，積層板材６Ａ間に介在された
非磁性部材２２とから円筒状に形成されている。This composite electric motor has a rotating shaft 2 rotatably supported by a stator 4 fixed to a housing 1.
In order to increase the torque of the rotor 3, the cylindrical electromagnet cores 6 are arranged on the rotary shafts 2 on both ends of the rotor 3, respectively, and the cylindrical electromagnet cores 1B corresponding to the electromagnet cores 6 are arranged in the magnetic path case 1B of the housing 1. Electromagnet 9 consisting of the electromagnet coil 19 of
Is provided. In particular, this composite electric motor is provided with an electromagnet core 6 extending in the longitudinal direction on the rotating shaft 2 and rotating with the permanent magnet member 5 in order to smoothly flow the magnetic force generated by the electromagnet 9 without saturating it in the magnetically permeable body. A feature is that a rotor yoke 7 extending in the longitudinal direction is provided on the electromagnet core 6 in order to smoothly flow the magnetic force generated by the child 3 and the stator 4 in a short passage. Electromagnet core 6
Is a laminated plate member 6A in which plate members are laminated in the circumferential direction by the magnet pieces 5A of the permanent magnet member 5 so that a magnetic flux flows along the magnetic poles of the permanent magnet member 5, and a non-magnetic member interposed between the laminated plate members 6A. 22 is formed into a cylindrical shape.
【００２７】また，回転子3 は，周方向に隔置して隣接
間に非磁性部材２２を順次介在して回転軸２の外周に円
筒状に配置された電磁石コア６，電磁石コア６の外周に
密着して配置された円筒状の回転子ヨーク７，回転子ヨ
ーク７の外周に密着して配置され且つ磁極が交互に相違
する状態に方向付けられて筒状に複数配置された板状の
磁石片５Ａから成る永久磁石部材５，及び永久磁石部材
５の外周面に固定された非磁性の補強部材１６から構成
されている。永久磁石部材５は，周方向に隔置して配置
された軸方向に延びる磁石片５Ａと，互いに隣接する磁
石片５Ａの間に介在された非磁性部材２３とから，全体
的に円筒状に形成されている。永久磁石部材５の外周面
は，切削加工によって断面円形に加工され，全体として
実質的に円筒形状に形成されている。特に，回転子ヨー
ク７は，全周にわたって透磁材で円筒状に形成されてい
る。The rotor 3 has a cylindrical outer peripheral surface of the rotating shaft 2 and a cylindrical outer peripheral surface of the rotating shaft 2 with a non-magnetic member 22 in between. A cylindrical rotor yoke 7 arranged in close contact with the outer peripheral surface of the rotor yoke 7, and a plurality of cylindrical plates arranged in close contact with the outer circumference of the rotor yoke 7 and arranged in a cylindrical shape with the magnetic poles alternately oriented. The permanent magnet member 5 includes a magnet piece 5A and a non-magnetic reinforcing member 16 fixed to the outer peripheral surface of the permanent magnet member 5. The permanent magnet member 5 is composed of an axially extending magnet piece 5A arranged at a distance in the circumferential direction and a non-magnetic member 23 interposed between the magnet pieces 5A adjacent to each other. Has been formed. The outer peripheral surface of the permanent magnet member 5 is processed into a circular cross section by cutting, and is formed into a substantially cylindrical shape as a whole. In particular, the rotor yoke 7 is formed of a magnetically permeable material in a cylindrical shape over the entire circumference.
【００２８】また，電磁石９を構成する回転子３に固定
された電磁石コア６は，永久磁石部材５の磁極方向に沿
って磁束が流れるように，回転子３に密着する密着部１
８と，密着部１８を軸方向に離間させる切欠き部１５が
周方向に隔置して複数形成されている。電磁石コイル１
９は，回転子３の両側から突出して延びる電磁石コア６
の外周に隔置して電磁石コア６の周りに巻き上げられ，
電磁石コイル１９に電流を流すことによって，電磁石コ
ア６に軸方向の磁束を発生させ，磁力を流すことにな
る。電磁石９は，コントローラ１０が回転軸２の回転数
が低いことに応答して電磁石コイル１９への通電する制
御を行うことによって付勢され，永久磁石部材５の磁力
線と同方向の磁力線を発生させる。電磁石コア６の密着
部１８は，回転子ヨーク７及び永久磁石部材５の各両端
面にそれぞれ密着して補強部材１６の位置まで延びてい
る。Further, the electromagnet core 6 fixed to the rotor 3 constituting the electromagnet 9 has a close contact portion 1 which is in close contact with the rotor 3 so that a magnetic flux flows along the magnetic pole direction of the permanent magnet member 5.
8 and a plurality of notches 15 that separate the contact portion 18 from each other in the axial direction are circumferentially spaced from each other. Electromagnet coil 1
Reference numeral 9 denotes an electromagnet core 6 which extends from both sides of the rotor 3 and extends.
Is wound around the electromagnet core 6 while being spaced around the outer periphery of the
By passing a current through the electromagnet coil 19, a magnetic flux in the axial direction is generated in the electromagnet core 6 and a magnetic force is passed. The electromagnet 9 is energized by the controller 10 controlling the energization of the electromagnet coil 19 in response to the low rotational speed of the rotary shaft 2, and generates a magnetic force line in the same direction as the magnetic force line of the permanent magnet member 5. . The close contact portion 18 of the electromagnet core 6 is in close contact with both end faces of the rotor yoke 7 and the permanent magnet member 5, and extends to the position of the reinforcing member 16.
【００２９】また，永久磁石部材５は，複数の磁石片５
Ａをほぼ円筒形状に配置し，磁石片５Ａ間の境界領域に
樹脂材，ガラス，ニッケル，銅，銀等の材料から成る非
磁性部材２３を充填し，複数の磁石片５Ａと非磁性部材
２３とから成る全体の外形形状を，ほぼ円筒状の永久磁
石体を構成する。また，永久磁石部材５の磁石片５Ａ
は，内周側に一方の磁極（Ｎ極又はＳ極）が且つ外周側
に他方の磁極（Ｓ極又はＮ極）が位置するように配置さ
れ，周方向において隣接する磁石片５Ａの磁極（Ｎ極と
Ｓ極）は互いに相違するように配置されている。The permanent magnet member 5 is composed of a plurality of magnet pieces 5
A is arranged in a substantially cylindrical shape, and a non-magnetic member 23 made of a resin material, glass, nickel, copper, silver, or the like is filled in the boundary region between the magnet pieces 5A, and the plurality of magnet pieces 5A and the non-magnetic member 23 are filled. The entire outer shape consisting of and constitutes a substantially cylindrical permanent magnet body. In addition, the magnet piece 5A of the permanent magnet member 5
Is arranged such that one magnetic pole (N pole or S pole) is located on the inner circumference side and the other magnetic pole (S pole or N pole) is located on the outer circumference side, and the magnetic poles of the magnet pieces 5A adjacent in the circumferential direction ( The north pole and the south pole are arranged so as to be different from each other.
【００３０】また，この複合電動機は，永久磁石部材５
の磁極に沿って磁束が流れるように，回転子３の一端側
（図１の向かって右側）の電磁石コア６が外周側がＮ極
で内周側がＳ極の永久磁石部材５（図１の上側）に対応
して配置され，また，回転子３の他端側（図１の向かっ
て左側）の電磁石コア６が外周側がＳ極で内周側がＮ極
の永久磁石部材５（図１の下側）に対応して配置されて
いる。即ち，上側に位置する永久磁石部材５の磁石片５
Ａは，その内周部がＳ極に且つ外周部がＮ極になるよう
に配置され，また，上側に位置する電磁石コア６の密着
部１８がＮ極に且つ電磁石コア６の端部２６の押さえ板
１２に接触している部分がＳ極になるように配置されて
いる。これに対して，下側に位置する永久磁石部材５の
磁石片５Ａは，その内周部がＮ極に且つ外周部がＳ極に
なるように配置され，また，下側に位置する電磁石コア
６の密着部１８がＳ極に且つ押さえ板１２に接触してい
る電磁石コア６の端部２６の部分がＮ極になるように配
置されている。Further, this composite electric motor has a permanent magnet member 5
So that the magnetic flux flows along the magnetic poles of the permanent magnet member 5 having the N pole on the outer peripheral side and the S pole on the inner peripheral side of the electromagnet core 6 on the one end side (the right side in FIG. 1) of the rotor 3 (the upper side in FIG. 1). ), And the electromagnet core 6 on the other end side (left side in FIG. 1) of the rotor 3 has an S pole on the outer circumference side and an N pole on the inner circumference side (lower side in FIG. 1). Side) is arranged corresponding to. That is, the magnet piece 5 of the permanent magnet member 5 located on the upper side
A is arranged such that the inner peripheral portion thereof is the S pole and the outer peripheral portion thereof is the N pole, and the contact portion 18 of the electromagnet core 6 located on the upper side is the N pole and the end portion 26 of the electromagnet core 6 is The portion in contact with the pressing plate 12 is arranged so as to be the S pole. On the other hand, the magnet piece 5A of the permanent magnet member 5 located on the lower side is arranged such that the inner peripheral portion thereof is the N pole and the outer peripheral portion thereof is the S pole, and the electromagnet core located on the lower side. The contact portion 18 of the electromagnet core 6 is arranged so that the end portion 26 of the electromagnet core 6 in contact with the S pole and the pressing plate 12 becomes the N pole.
【００３１】この複合電動機では，永久磁石部材５を持
つ回転子３とステータ４とで発生する磁束は，例えば，
図２に示すように，永久磁石部材５を構成する磁石片５
Ａのうち，外側がＮ極で内側がＳ極のもの（図１の上側
の磁石片５Ａ）では，Ｓ極の内側からＮ極の外側へ磁力
が通過するので，磁石片５Ａからステータ歯部２０Ａ→
ステータコア２０→隣接するステータ歯部２０Ａ→隣接
する磁石片５Ａ→回転子ヨーク７を通じて最初の磁石片
５Ａから成る磁路を流れる。また，電磁石９によって発
生する磁束は，回転子３の両端に配設された電磁石９の
うち，例えば，図１に示すように，軸方向の内側（回転
子側）がＮ極に且つ外側（回転子から離れた側）がＳ極
になる一端側の電磁石９の電磁石コア６（図１の向かっ
て右側）からの磁力が磁石片５Ａによる磁力に加わるこ
とになる。即ち，その磁束は，電磁石コア６から回転子
ヨーク７→磁石片５Ａ→ステータ歯部２０Ａ→ステータ
コア２０→磁路ケース１Ｂ→電磁石コイル１９を通じて
最初の電磁石コア６から成る磁路を流れることになる。
それによって，永久磁石部材を持つ回転子３とステータ
４とで発生する磁束と電磁石９によって発生する磁束と
のトータルの磁力線が同方向に通過して増加され，回転
軸２のトルクがアップされることになる。In this composite motor, the magnetic flux generated by the rotor 3 having the permanent magnet member 5 and the stator 4 is, for example,
As shown in FIG. 2, the magnet piece 5 that constitutes the permanent magnet member 5
In A of which the outer side is the N pole and the inner side is the S pole (the upper magnet piece 5A in FIG. 1), the magnetic force passes from the inside of the S pole to the outside of the N pole. 20A →
The stator core 20 → the adjacent stator tooth portion 20A → the adjacent magnet piece 5A → the rotor yoke 7 flows through the magnetic path formed by the first magnet piece 5A. The magnetic flux generated by the electromagnet 9 is, for example, as shown in FIG. 1, of the electromagnets 9 arranged at both ends of the rotor 3, the inner side (rotor side) in the axial direction is the N pole and the outer side ( The magnetic force from the electromagnet core 6 (on the right side in FIG. 1) of the electromagnet 9 on one end side where the side away from the rotor becomes the S pole is added to the magnetic force by the magnet piece 5A. That is, the magnetic flux flows from the electromagnet core 6 through the rotor yoke 7 → magnet piece 5A → stator tooth portion 20A → stator core 20 → magnetic path case 1B → electromagnetic coil 19 to the first magnetic path formed by the electromagnet core 6. .
As a result, the total magnetic flux of the magnetic flux generated by the rotor 3 having the permanent magnet member and the stator 4 and the magnetic flux generated by the electromagnet 9 increases in the same direction, and the torque of the rotary shaft 2 is increased. It will be.
【００３２】また，永久磁石部材５の上記の磁石片５Ａ
とは逆の磁極を有する磁石片５Ａ（図１の下側）では，
外側がＳ極で内側がＮ極であり，Ｓ極の外側からＮ極の
内側へ磁力が通過するので，磁石片５Ａから回転子ヨー
ク７→隣接する磁石片５Ａ→ステータ歯部２０Ａ→ステ
ータコア２０→隣接するステータ歯部２０Ａを通じて最
初の磁石片５Ａから成る磁路を流れる。また，電磁石９
によって発生する磁束は，回転子３の両端に配設された
電磁石９のうち，例えば，図１に示すように，軸方向の
内側（回転子側）がＳ極に且つ外側（回転子から離れた
側）がＮ極になる一端側の電磁石９の電磁石コア６（図
１の向かって左側）からの磁力が磁石片５Ａによる磁力
に加わることになる。即ち，その磁束は，電磁石コア６
から電磁石コイル１９→磁路ケース１Ｂ→ステータコア
２０→ステータ歯部２０Ａ→磁石片５Ａ→回転子ヨーク
７を通じて最初の電磁石コア６から成る磁路を流れるこ
とになる。それによって，永久磁石部材を持つ回転子３
とステータ４とで発生する磁束と電磁石９によって発生
する磁束とのトータルの磁力線が同方向に通過して増加
され，回転軸２のトルクがアップされることになる。Further, the above-mentioned magnet piece 5A of the permanent magnet member 5
In the magnet piece 5A having a magnetic pole opposite to (
Since the outer side is the S pole and the inner side is the N pole, the magnetic force passes from the outer side of the S pole to the inner side of the N pole. Therefore, the magnet piece 5A is rotated by the rotor yoke 7 → the adjacent magnet piece 5A → the stator tooth portion 20A → the stator core 20. → Flows in the magnetic path formed by the first magnet piece 5A through the adjacent stator tooth portion 20A. Also, the electromagnet 9
The magnetic flux generated by the electromagnet 9 disposed on both ends of the rotor 3 is, for example, as shown in FIG. 1, the inner side (rotor side) in the axial direction is the S pole and the outer side (away from the rotor). The magnetic force from the electromagnet core 6 (on the left side in FIG. 1) of the electromagnet 9 on the one end side where the positive side is the N pole is added to the magnetic force by the magnet piece 5A. That is, the magnetic flux is generated by the electromagnet core 6
From the electromagnet coil 19 → the magnetic path case 1B → the stator core 20 → the stator tooth portion 20A → the magnet piece 5A → the rotor yoke 7, the magnetic path composed of the first electromagnet core 6 flows. Thereby, the rotor 3 having the permanent magnet member
The total magnetic flux of the magnetic flux generated by the stator 4 and the magnetic flux generated by the electromagnet 9 passes through in the same direction and is increased, and the torque of the rotary shaft 2 is increased.
【００３３】電磁石コア６は，回転軸２に固定され，電
磁石コア６と回転軸２とから成る軸自体を適正な径に構
成することができる。電磁石コア６は，フェライト材，
Ｍｏ−パーマロイ，センダスト，アモルファス合金等の
透磁性の優れた材料から構成されている透磁板部材を積
層することによって作製されている。補強部材１６は，
例えば，金属から成る補強線，非磁性のカーボン巻線，
非磁性の金属巻線，或いは薄板から構成されている。更
に，補強部材１６の隙間，隣接する永久磁石部材５の
間，及び隣接する電磁石コア６の間には，樹脂材等の非
磁性材を注入し，非磁性部材２２，２３を介在させて回
転子３が完成されている。非磁性部材２２，２３は，例
えば，アルミニウム，オーステナイト鋼，ホウロウ材，
或いは，鉄及び銅とガラス材とを混合した混合材から構
成されている。The electromagnet core 6 is fixed to the rotary shaft 2, and the shaft itself composed of the electromagnet core 6 and the rotary shaft 2 can be constructed to have an appropriate diameter. The electromagnet core 6 is a ferrite material,
It is manufactured by laminating magnetically permeable plate members made of a material having excellent magnetic permeability such as Mo-permalloy, sendust, and amorphous alloy. The reinforcing member 16 is
For example, metal reinforcement wire, non-magnetic carbon winding,
It is composed of non-magnetic metal windings or thin plates. Furthermore, a non-magnetic material such as a resin material is injected into the gaps between the reinforcing members 16, between the adjacent permanent magnet members 5, and between the adjacent electromagnet cores 6, and the non-magnetic members 22 and 23 are interposed to rotate. Child 3 is completed. The non-magnetic members 22 and 23 are, for example, aluminum, austenitic steel, enamel,
Alternatively, it is made of a mixed material in which iron and copper are mixed with a glass material.
【００３４】この複合電動機は，上記の構成を有するの
で，次のように作動することができる。電磁石９の磁力
を制御するコントローラ１０は，回転軸２の低速に応答
して電磁石コイル１９に通電させる指令を出し，永久磁
石部材５の磁力に加えて電磁石９の追加の磁力線が形成
されることになり，回転軸２の低速トルクをアップさせ
る制御を行う。また，コントローラ１０は，回転軸２の
高速に応答して電磁石コイル１９に低速時とは逆方向に
通電させる指令を出し，永久磁石部材５の磁力の方向と
逆の磁力を作用させ，それによって回転子３に発生する
逆起電力が小さくなり，回転軸２の高速トルクを抑制す
る制御を行う。コントローラ１０は，回転数Ｎが予め決
められた所定の回転数Ｎａ〜Ｎａ1 の範囲であり，負荷
Ｌが予め決められた所定の負荷Ｌａ〜Ｌａ1 の範囲であ
る時には，電磁石９への通電を行って，電磁石９の磁力
を永久磁石部材５の回転子３に追加する制御を行う。ま
た，コントローラ１０は，回転数Ｎが予め決められた所
定の回転数Ｎａ1 〜Ｎｂ1の範囲であり，負荷Ｌが予め
決められた所定の負荷Ｌｂ〜Ｌｂ1 の範囲である時に
は，電磁石９への通電を停止し，電磁石９の磁力を発生
させない制御を行う。更に，コントローラ１０は，回転
数Ｎが予め決められた所定の回転数Ｎｂ1 〜Ｎｃ1 の範
囲であり，負荷Ｌが予め決められた所定の負荷Ｌｃ以下
の時には，電磁石９への電流を逆方向に流し，電磁石９
の磁力を永久磁石部材５の回転子３の磁力を低減する方
向に制御を行う。また，複合電磁石を修理，補整等の調
整を行う場合に，手動で電磁石のコイルに通電し，永久
磁石の磁力を減少させるように通電させ，コキングを減
らすことができる。Since this combined electric motor has the above-mentioned structure, it can be operated as follows. The controller 10 that controls the magnetic force of the electromagnet 9 issues a command to energize the electromagnet coil 19 in response to the low speed of the rotating shaft 2 so that an additional magnetic field line of the electromagnet 9 is formed in addition to the magnetic force of the permanent magnet member 5. Then, the control for increasing the low speed torque of the rotary shaft 2 is performed. Further, the controller 10 responds to the high speed of the rotating shaft 2 to issue a command to energize the electromagnet coil 19 in a direction opposite to that at the time of low speed, thereby causing a magnetic force opposite to the magnetic force direction of the permanent magnet member 5 to act, thereby The counter electromotive force generated in the rotor 3 is reduced, and control is performed to suppress the high-speed torque of the rotating shaft 2. The controller 10 energizes the electromagnet 9 when the rotation speed N is in a predetermined rotation speed range Na to Na 1 and the load L is in a predetermined load range La to La 1. Then, control is performed to add the magnetic force of the electromagnet 9 to the rotor 3 of the permanent magnet member 5. Further, the controller 10 controls the electromagnet 9 when the rotation speed N is within a predetermined rotation speed range Na 1 to Nb 1 and the load L is within a predetermined load range Lb to Lb 1. The power supply to the electromagnet 9 is stopped and the magnetic force of the electromagnet 9 is not generated. Further, the controller 10 reverses the current to the electromagnet 9 when the rotation speed N is in the range of a predetermined rotation speed Nb 1 to Nc 1 and the load L is equal to or less than the predetermined load Lc. Flow in the direction of the electromagnet 9
The magnetic force of 1 is controlled to reduce the magnetic force of the rotor 3 of the permanent magnet member 5. In addition, when repairing or adjusting the composite electromagnet, the coil of the electromagnet can be manually energized to reduce the magnetic force of the permanent magnet, thereby reducing coking.
【００３５】この複合電動機は，上記の構成を有し，例
えば，図３に示すように作動する。まず，エンジンの作
動状態のエンジンの回転数Ｎ，エンジンの負荷Ｌを検出
し，それらの情報をコントローラ１０に入力して読み込
む（Ｓ１）。回転数Ｎが予め決められた所定の回転数Ｎ
ａ1 より小さく低速であるか否かを判断する（Ｓ２）。
低速である場合には，負荷Ｌが予め決められた所定の負
荷Ｌａより大きいか否かを判断する（Ｓ３）。負荷Ｌが
大きい場合には，複合電動機の低速トルクをアップさせ
るため，電磁石９の作動を増大させる（Ｓ５）と共に，
ステータ４のステータコイル１４の電流を増大させる
（Ｓ７）。従って，複合電動機の低速トルクがアップす
るので，そこで，コントローラ１０は，予め決められた
所定の負荷Ｌａ1 より大きくならない制御をするため，
負荷Ｌが予め決められた所定の負荷Ｌａ1 より大きいか
否かを判断する（Ｓ８）。依然として負荷Ｌが小さい場
合には，引き続き電磁石９の作動を増大させると共にス
テータ４のステータコイル１４の電流を増大させるた
め，ステップＳ５からの処理を繰り返す。また，負荷Ｌ
が大きくなった場合には，電磁石９への電流の供給を低
減すると共にステータ４のステータコイル１４の電流を
低減し，低速トルクが適正なトルク値になるように制御
する（Ｓ２１）。This composite electric motor has the above-mentioned structure and operates, for example, as shown in FIG. First, the engine speed N and the engine load L in the operating state of the engine are detected, and the information is input to the controller 10 and read (S1). The rotation speed N is a predetermined rotation speed N determined in advance.
It is determined whether or not the speed is smaller than a 1 and is low (S2).
When the speed is low, it is determined whether the load L is larger than a predetermined load La that is determined in advance (S3). When the load L is large, the operation of the electromagnet 9 is increased to increase the low-speed torque of the combined electric motor (S5), and
The current of the stator coil 14 of the stator 4 is increased (S7). Therefore, since the low-speed torque of the composite motor increases, the controller 10 performs control so that the load does not become larger than a predetermined load La 1 , which is
It is determined whether or not the load L is larger than a predetermined load La 1 which is determined in advance (S8). If the load L is still small, the operation of the electromagnet 9 is continuously increased and the current of the stator coil 14 of the stator 4 is increased, so that the processes from step S5 are repeated. Also, the load L
When becomes larger, the supply of current to the electromagnet 9 is reduced and the current in the stator coil 14 of the stator 4 is reduced, so that the low speed torque is controlled to an appropriate torque value (S21).
【００３６】ステップＳ２の処理において，回転数Ｎが
予め決められた所定の回転数Ｎａ1より小さくない場合
には，回転数Ｎが予め決められた所定の回転数Ｎｂ1 よ
り小さいか否かを判断する（Ｓ４）。回転数Ｎが所定の
回転数Ｎｂ1 より小さい場合には，負荷Ｌが予め決めら
れた所定の負荷Ｌｂより大きいか否かを判断する（Ｓ
９）。負荷Ｌが負荷Ｌｂより大きい場合には，複合電動
機の低速トルクをアップさせるため，ステータコイル１
４への電流を増大させ，回転数Ｎを増大させる（Ｓ１
１）。そこで，回転数Ｎがアップして複合電動機の低速
トルクがアップする。そこで，コントローラ１０は，回
転数Ｎが予め決められた所定の回転数Ｎｂ1より大きい
か否かを判断する（Ｓ１２）。回転数Ｎが回転数Ｎｂ1
より大きくない場合には，回転数Ｎを上昇させるため，
処理はステップＳ１１に戻ってステータコイル１４への
電流を増大させ続ける。また，回転数Ｎが回転数Ｎｂ1
より大きい場合には，回転数Ｎが回転数Ｎｂ1 より大き
くならないように，ステータ４のステータコイル１４の
電流を低減し，低速トルクが適正なトルク値になるよう
に制御する（Ｓ１３）。In the processing of step S2, when the rotation speed N is not smaller than the predetermined rotation speed Na 1 which is determined in advance, it is determined whether the rotation speed N is smaller than the predetermined rotation speed Nb 1 which is determined in advance. Judge (S4). If the rotation speed N is smaller than the predetermined rotation speed Nb 1, it is determined whether or not the load L is larger than a predetermined load Lb (S).
9). When the load L is larger than the load Lb, in order to increase the low speed torque of the combined electric motor, the stator coil 1
4 to increase the current and increase the rotation speed N (S1
1). Therefore, the rotation speed N increases and the low speed torque of the combined electric motor increases. Therefore, the controller 10 determines whether the rotation speed N is higher than a predetermined rotation speed Nb 1 (S12). The rotation speed N is the rotation speed Nb 1
If it is not larger, to increase the rotation speed N,
The process returns to step S11 to continue increasing the current to the stator coil 14. Further, the rotation speed N is the rotation speed Nb 1
If it is larger, the current of the stator coil 14 of the stator 4 is reduced so that the rotation speed N does not exceed the rotation speed Nb 1 , and the low speed torque is controlled to an appropriate torque value (S13).
【００３７】ステップＳ３の処理において，負荷Ｌが大
きくない場合には，複合電動機の電磁石９の作動による
低速トルクをアップする必要がないが，ステータ４のス
テータコイル１４の電流を増大させて負荷Ｌを増大させ
る。そこで，回転数Ｎが所定の回転数Ｎａより大きいか
否かを判断する（Ｓ１９）。回転数Ｎが所定の回転数Ｎ
ａより大きい場合には，回転数Ｎが所定の回転数Ｎａ1
より大きくないか否かを判断する（Ｓ２０）。回転数Ｎ
が所定の回転数Ｎａ1 より大きくない場合には，ステッ
プ（Ｓ６）へ処理を戻してステータ４のステータコイル
１４の電流を増大させ，回転数Ｎを増大させる制御を行
う。また，ステップ（Ｓ１９）において，回転数Ｎが所
定の回転数Ｎａより大きい場合には，ステップ（Ｓ６）
へ処理を戻してステータ４のステータコイル１４の電流
を増大させ，回転数Ｎを増大させる制御を行う。ステッ
プ（Ｓ２０）において回転数Ｎが所定の回転数Ｎａ1 よ
り小さい場合には，回転数Ｎが回転数Ｎａ1 より大きく
ならないように，ステータ４のステータコイル１４の電
流を低減し，低速トルクが適正なトルク値になるように
制御する（Ｓ２１）。In the process of step S3, when the load L is not large, it is not necessary to increase the low speed torque due to the operation of the electromagnet 9 of the combined motor, but the current of the stator coil 14 of the stator 4 is increased to increase the load L. Increase. Therefore, it is determined whether the rotation speed N is higher than a predetermined rotation speed Na (S19). The rotation speed N is a predetermined rotation speed N
When it is larger than a, the rotation speed N is a predetermined rotation speed Na 1
It is determined whether or not it is larger (S20). Number of revolutions N
Is not larger than the predetermined rotation speed Na 1 , the process is returned to step (S6) to increase the current of the stator coil 14 of the stator 4 and increase the rotation speed N. If the rotation speed N is greater than the predetermined rotation speed Na in step (S19), step (S6)
The process is returned to and the control is performed to increase the current of the stator coil 14 of the stator 4 and increase the rotation speed N. When the rotation speed N is smaller than the predetermined rotation speed Na 1 in step (S20), the current of the stator coil 14 of the stator 4 is reduced so that the rotation speed N does not exceed the rotation speed Na 1 , and the low speed torque is reduced. Control is performed so as to obtain an appropriate torque value (S21).
【００３８】この複合電動機の処理のステップ（Ｓ４）
において，回転数Ｎが所定の回転数Ｎｂ1 より大きい場
合には，回転数Ｎが予め決められた所定の回転数Ｎｃ1
より大きいか否かを判断する（Ｓ１０）。回転数Ｎが所
定の回転数Ｎｃ1 より大きい場合には，回転数Ｎを低減
するため，電磁石９への電流を逆向きに流し，永久磁石
部材５の回転子３の回転方向と逆にし，回転数Ｎを低減
する（Ｓ１４）。また，ステップ（Ｓ１０）において，
回転数Ｎが所定の回転数Ｎｃ1 より大きくない場合に
は，電磁石９へ供給する電流を微小量低減し，回転数Ｎ
を低減する（Ｓ１５）。そこで，負荷Ｌが所定の負荷Ｌ
ｃより大きいか否か判断する（Ｓ１６）。負荷Ｌが負荷
Ｌｃより大きい場合には，ステータ４のステータコイル
１４の電流を増大させ，適正な負荷になるように制御す
る（Ｓ１７）。次いで，回転数Ｎが予め決められた所定
の回転数Ｎｃ1 より大きいか否かを判断する（Ｓ１
８）。回転数Ｎが回転数Ｎｃ1 より大きい場合には，回
転数Ｎを低減するため，ステータ４のステータコイル１
４の電流を低減し，回転数が適正な回転数値になるよう
に制御する（Ｓ２１）。また，ステップ（Ｓ１６）にお
いて，負荷Ｌが負荷Ｌｃより大きくない場合には，ステ
ータコイル１４の電流を増大させる必要がなく，ステー
タ４のステータコイル１４の電流を低減し，回転数Ｎが
適正な回転数値になるように制御する（Ｓ２１）。Step of processing of this combined electric motor (S4)
If the number of revolutions N is larger than the predetermined number of revolutions Nb 1 , the number of revolutions N is the predetermined number of revolutions Nc 1 determined in advance.
It is determined whether or not it is larger (S10). When the rotation speed N is larger than the predetermined rotation speed Nc 1 , in order to reduce the rotation speed N, a current is applied to the electromagnet 9 in the opposite direction to reverse the rotation direction of the rotor 3 of the permanent magnet member 5, The rotation speed N is reduced (S14). Also, in step (S10),
When the rotation speed N is not larger than the predetermined rotation speed Nc 1 , the current supplied to the electromagnet 9 is reduced by a minute amount to reduce the rotation speed N.
Is reduced (S15). Therefore, the load L is the predetermined load L
It is determined whether it is larger than c (S16). When the load L is larger than the load Lc, the current of the stator coil 14 of the stator 4 is increased to control the load to be appropriate (S17). Next, it is determined whether or not the rotation speed N is higher than a predetermined rotation speed Nc 1 (S1).
8). When the rotation speed N is higher than the rotation speed Nc 1 , the stator coil 1 of the stator 4 is reduced in order to reduce the rotation speed N.
The current of No. 4 is reduced, and the rotation speed is controlled so as to have an appropriate rotation value (S21). Further, in step (S16), when the load L is not larger than the load Lc, it is not necessary to increase the current of the stator coil 14, the current of the stator coil 14 of the stator 4 is reduced, and the rotation speed N is appropriate. Control is performed so as to obtain the rotation value (S21).
【００３９】[0039]
【発明の効果】この複合電動機は，上記のように構造さ
れているので，永久磁石部材を持つ回転子とステータと
によって発生する磁束は，全周が透磁性の回転子ヨーク
を通って周方向に流れ，しかも，回転子の両側の電磁石
によって発生する磁束は，電磁石コアを通って軸方向に
流れるので，両磁束はスムースに流れることになり，電
動機として作動する時に，低速でのトルクを大幅に増加
させることができ，また，高速回転では，電磁石の発生
磁力を逆に向かわせることになり，ステータの磁束密度
を小さくさせ，逆起電力を抑制させ，無駄な電力を投入
せずに済むことになる。即ち，回転軸の低速時に，コン
トローラの指令によって，永久磁石による磁力に加えて
電磁石による磁力が追加され，トータルで磁力を増加さ
れ，回転軸の軸トルク，即ち，低速トルクをアップさせ
ることができると共に，回転軸の高速時に，電磁石に逆
方向に電流を流して永久磁石部材の磁力を減じて高速ト
ルクを抑制する制御ができる。また，この複合電動機
は，例えば，回転エネルギを電気エネルギに変換する高
速発電機や高速モータとして適用できるものであり，発
電機をコジェネレーションシステム，ハイブリット自動
車用エンジン等に容易に適用できると共に，工作機械等
で使用される高速回転のモータに適用することができ
る。この複合電動機は，例えば，６００００ｒｐｍとい
う高速回転にも耐えると共に，製造コストを低減でき，
しかもコンパクトに構成できる。Since this composite motor is constructed as described above, the magnetic flux generated by the rotor having the permanent magnet member and the stator passes through the rotor yoke having the entire magnetic permeability in the circumferential direction. In addition, since the magnetic flux generated by the electromagnets on both sides of the rotor flows in the axial direction through the electromagnet core, both magnetic fluxes flow smoothly, and when operating as an electric motor, the torque at low speed is greatly increased. In addition, at high speed rotation, the magnetic force generated by the electromagnet is reversed, which reduces the magnetic flux density of the stator, suppresses counter electromotive force, and avoids wasting power. It will be. That is, when the rotating shaft is at low speed, the magnetic force of the electromagnet is added to the magnetic force of the permanent magnet and the magnetic force is increased in total by the command of the controller, and the axial torque of the rotating shaft, that is, the low speed torque can be increased. At the same time, when the rotating shaft is at a high speed, it is possible to control the high-speed torque by reducing the magnetic force of the permanent magnet member by passing a current in the opposite direction to the electromagnet. Further, this composite electric motor can be applied as, for example, a high-speed generator or a high-speed motor that converts rotational energy into electric energy, and the generator can be easily applied to a cogeneration system, an engine for a hybrid vehicle, and the like. It can be applied to high-speed rotation motors used in machines and the like. This compound electric motor can withstand high speed rotation of 60,000 rpm, for example, and can reduce the manufacturing cost.
Moreover, it can be made compact.
【図１】この発明による複合電動機を示す軸方向の断面
図である。FIG. 1 is an axial sectional view showing a composite electric motor according to the present invention.
【図２】図１の複合電動機におけるＡ−Ａ断面における
断面図である。FIG. 2 is a cross-sectional view taken along the line AA in the combined electric motor of FIG.
【図３】図１の複合電動機の作動を示す処理フロー図で
ある。FIG. 3 is a process flow chart showing an operation of the combined electric motor of FIG.
１ ハウジング １Ｂ 磁路ケース ２ 回転軸 ３ 回転子 ４ ステータ ５ 永久磁石部材 ５Ａ 磁石片 ６ 電磁石コア ６Ａ 積層板材 ７ 回転子ヨーク ９ 電磁石 １０ コントローラ １５ 切欠き部 １６ 補強部材 １９ 電磁石コイル ２０ ステータコア ２２，２３ 非磁性部材 ２６ 端部 1 housing 1B magnetic path case 2 rotation axes 3 rotor 4 stator 5 Permanent magnet members 5A magnet piece 6 Electromagnetic core 6A laminated board material 7 rotor yoke 9 Electromagnet 10 controller 15 Notch 16 Reinforcement member 19 Electromagnetic coil 20 Stator core 22,23 Non-magnetic material 26 edge
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02K 21/14 H02K 1/27 501 Front page continuation (58) Fields surveyed (Int.Cl. 7 , DB name) H02K 21/14 H02K 1/27 501
Claims (9)
軸，該回転軸に取り付けられた回転子，該回転子に対応
して外周に配置され且つ前記ハウジングに固定されたス
テータ，及び前記回転子の両端側の前記回転軸上にそれ
ぞれ配置された電磁石を有し，前記回転子は，前記回転
軸上の外周に配置され且つ周方向に隔置して軸方向に前
記電磁石に到達するように延びる非磁性材を介在した透
磁材から成る円筒状の電磁石コア，該電磁石コア上に円
筒状に配置された全周にわたって透磁材から成る円筒状
の回転子ヨーク，及び該回転子ヨークの外周に周方向に
隔置して軸方向に延びる非磁性部材を介在した磁極が交
互に異なる状態に円筒状に周方向に隣接してそれぞれ配
置された磁石片から成る永久磁石部材から構成され，前
記電磁石は前記回転軸上の前記電磁石コアの端部と該端
部に対応して前記ハウジングの磁路ケースに配置された
円筒状の電磁石コイルとから構成され，前記電磁石コア
は軸方向で且つ交互に逆方向に磁束が流れるように周方
向に離間させる切欠き部が円周上に隔置して形成されて
いることから成る複合電動機。1. A rotary shaft rotatably supported by a housing, a rotor attached to the rotary shaft, a stator arranged on the outer periphery corresponding to the rotor and fixed to the housing, and the rotor. Has electromagnets respectively arranged on both ends of the rotary shaft, and the rotor is arranged on the outer periphery of the rotary shaft and is circumferentially spaced so as to reach the electromagnet in the axial direction. A cylindrical electromagnet core made of a magnetic material with a non-magnetic material extending therethrough, a cylindrical rotor yoke made of a magnetic material over the entire circumference arranged in a cylindrical shape on the electromagnet core, and a rotor yoke of the rotor yoke. Permanent magnets composed of magnet pieces that are cylindrically arranged adjacent to each other in the circumferential direction in such a manner that magnetic poles having non-magnetic members that are spaced apart in the circumferential direction and extend in the axial direction on the outer circumference are alternately arranged. The electromagnet is composed of It is composed of an end portion of the electromagnet core on the rolling axis and a cylindrical electromagnet coil arranged in the magnetic path case of the housing corresponding to the end portion, and the electromagnet cores are arranged in the axial direction and alternately in opposite directions. A composite electric motor comprising notches that are spaced apart from each other in the circumferential direction so that magnetic flux flows through the circumference.
久磁石部材の磁極へ前記回転子ヨークを通じて前記電磁
石の磁束が流れ込み前記ステータ側に流れるように，前
記永久磁石部材の前記磁石片分だけの幅の板材として軸
方向に延びていることから成る請求項１に記載の複合電
動機。2. The magnetically permeable material of the electromagnet core is divided into the magnet pieces of the permanent magnet member so that the magnetic flux of the electromagnet flows into the magnetic poles of the permanent magnet member through the rotor yoke and flows toward the stator. 2. The combined electric motor according to claim 1, wherein the combined electric motor extends in the axial direction as a plate member having a width of 10 mm.
流れるように，前記電磁石コアの前記透磁部材は外周側
がＮ極で内周側がＳ極の前記永久磁石部材に対応して配
置され，また，隣接する前記透磁部材は外周側がＳ極で
内周側がＮ極の前記永久磁石部材に対応して配置されて
いることから成る請求項１に記載の複合電動機。3. The magnetically permeable member of the electromagnet core is arranged so as to correspond to the permanent magnet member having an N pole on the outer peripheral side and an S pole on the inner peripheral side so that a magnetic flux flows along the magnetic poles of the permanent magnet member. 2. The composite electric motor according to claim 1, wherein the adjacent magnetically permeable members are arranged corresponding to the permanent magnet members having an S pole on the outer peripheral side and an N pole on the inner peripheral side.
過して前記ステータ側に流れる磁束は，前記磁石片から
前記回転子ヨーク，隣接する前記磁石片，ステータ歯
部，ステータコア及び別のステータ歯部を通じて最初の
前記磁石片から成る磁路を流れるか，又は逆磁極の側で
はその逆方向の磁路を流れ，前記回転子ヨークの半径方
向の厚さは前記永久磁石部材の磁束でほぼ飽和するよう
に構成したことから成る請求項１に記載の複合電動機。4. The magnetic flux flowing to the stator side after passing through the rotor having the permanent magnet member is from the magnet piece to the rotor yoke, the adjacent magnet piece, a stator tooth portion, a stator core and another stator. The magnetic flux of the permanent magnet member is almost the same as the magnetic flux of the permanent magnet member, either flowing through the first magnetic path of the magnet piece through the tooth portion or flowing in the opposite magnetic path on the side of the reverse magnetic pole. The combined electric motor according to claim 1, which is configured to be saturated.
記電磁石コアから前記回転子ヨーク，前記磁石片，ステ
ータ歯部，ステータコア，ハウジングヨーク及び前記電
磁石コイルを通じて最初の前記電磁石から成る磁路を流
れるか，又はその逆方向の磁路を流れることから成る請
求項１に記載の複合電動機。5. The magnetic flux generated by the electromagnet flows from the electromagnet core through the rotor yoke, the magnet pieces, the stator teeth, the stator core, the housing yoke, and the electromagnet coil in the first magnetic path formed by the electromagnet. , Or a magnetic path flowing in the opposite direction, the combined electric motor according to claim 1.
−パーマロイ，センダスト等の透磁性の優れた材料から
構成されていることから成る請求項１に記載の複合電動
機。6. The electromagnet core is a ferrite material, Mo
The composite electric motor according to claim 1, which is made of a material having excellent magnetic permeability such as permalloy or sendust.
ラは，前記回転軸の低速に応答して前記電磁石コイルに
通電して前記電磁石コアを通過する磁力線を前記永久磁
石部材で発生する磁力線に加算して低速トルクをアップ
させる制御を行うことから成る請求項１に記載の複合電
動機。7. The controller for controlling the magnetic force of the electromagnet adds a magnetic force line passing through the electromagnet core by energizing the electromagnet coil in response to a low speed of the rotating shaft to a magnetic force line generated by the permanent magnet member. The combined electric motor according to claim 1, wherein the combined electric motor is controlled by increasing the low speed torque.
ラは，前記回転軸の高速に応答して，前記永久磁石部材
で発生する磁力線を相殺させる方向に前記電磁石コアを
通過する磁力線を発生させるように，前記電磁石コイル
に低速時とは逆方向に通電し，高速トルクを抑制する制
御を行うことから成る請求項１に記載の複合電動機。8. The controller for controlling the magnetic force of the electromagnet is configured to generate a magnetic force line passing through the electromagnet core in a direction of canceling a magnetic force line generated in the permanent magnet member in response to a high speed of the rotating shaft. 2. The combined electric motor according to claim 1, wherein the electromagnet coil is energized in a direction opposite to that at the time of low speed to perform control for suppressing high speed torque.
ラは，電動機調整の作業時にコキングを除くため，低速
時とは逆方向に前記電磁石に通電し，前記永久磁石部材
の磁力をほぼ零にする制御を行うことから成る請求項１
に記載の複合電動機。9. The controller for controlling the magnetic force of the electromagnet, in order to remove coking during the motor adjustment work, energizes the electromagnet in the direction opposite to that at low speed to make the magnetic force of the permanent magnet member almost zero. Claim 1 comprising performing
Combined electric motor described in.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16219799A JP3499463B2 (en) | 1999-06-09 | 1999-06-09 | Compound motor that increases low-speed torque |
| US09/922,719 US6541887B2 (en) | 1999-03-12 | 2001-08-07 | Permanent-magnet motor-generator with voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16219799A JP3499463B2 (en) | 1999-06-09 | 1999-06-09 | Compound motor that increases low-speed torque |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000354358A JP2000354358A (en) | 2000-12-19 |
| JP3499463B2 true JP3499463B2 (en) | 2004-02-23 |
Family
ID=15749845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16219799A Expired - Fee Related JP3499463B2 (en) | 1999-03-12 | 1999-06-09 | Compound motor that increases low-speed torque |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3499463B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6541887B2 (en) | 1999-03-12 | 2003-04-01 | Hideo Kawamura | Permanent-magnet motor-generator with voltage stabilizer |
| CN106602831A (en) * | 2017-02-10 | 2017-04-26 | 许立新 | DC brushless motor rotor, DC brushless motor and fan |
-
1999
- 1999-06-09 JP JP16219799A patent/JP3499463B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000354358A (en) | 2000-12-19 |
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