JPS6236459B2 - - Google Patents
Info
- Publication number
- JPS6236459B2 JPS6236459B2 JP57190847A JP19084782A JPS6236459B2 JP S6236459 B2 JPS6236459 B2 JP S6236459B2 JP 57190847 A JP57190847 A JP 57190847A JP 19084782 A JP19084782 A JP 19084782A JP S6236459 B2 JPS6236459 B2 JP S6236459B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetic flux
- power generation
- magnet
- generating
- 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
Links
- 230000004907 flux Effects 0.000 claims description 21
- 230000005405 multipole Effects 0.000 claims description 12
- 238000010248 power generation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は周波数発電機およびその発電機付電動
機の特に周波数発電機の発生信号の改善に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a frequency generator and a motor with the generator, particularly to improving the generated signal of the frequency generator.
従来の円環状多極マグネツトと発電コイルから
構成される周波数発電機をもつた電動機を第１図
に示す。
FIG. 1 shows a conventional electric motor with a frequency generator consisting of an annular multi-pole magnet and a generator coil.
すなわち、モータ部は駆動コイル１―１と軸受
１―２および駆動コイル１―１、軸受１―２を固
着しているヨーク１―３からなるステータ部と、
多極マグネツト１―４と軸１―５およびそれらを
固着しているロータ１―６からなるロータ部から
構成され、ロータ部とステータ部は軸方向空隙を
介し対向している。ここで多極マグネツト１―４
は図示のように一平面上に多極磁化されているマ
グネツトをいう。また周波数発電機は、ステータ
部の多極マグネツト１―４側に取り付けられ、多
極マグネツト１―４の磁極数の2n＋１（ｎ＝
１、２、３…）倍の本数の多極マグネツトの磁極
の境界に平行な発電線素１―７よりなる発電コイ
ル１―８と、ロータ部の多極マグネツト１―４か
ら構成されている。 That is, the motor section includes a stator section consisting of a drive coil 1-1, a bearing 1-2, and a yoke 1-3 to which the drive coil 1-1 and the bearing 1-2 are fixed.
It is composed of a rotor section consisting of a multipolar magnet 1-4, a shaft 1-5, and a rotor 1-6 to which they are fixed, and the rotor section and stator section are opposed to each other with an axial gap interposed therebetween. Here, multipolar magnet 1-4
refers to a magnet that is magnetized with multiple poles on one plane as shown in the figure. Further, the frequency generator is attached to the multi-pole magnet 1-4 side of the stator section, and the number of magnetic poles of the multi-pole magnet 1-4 is 2n+1 (n=
1, 2, 3...) consists of a power generation coil 1-8 made up of power generation line elements 1-7 parallel to the boundaries of the magnetic poles of the multi-pole magnets, and a multi-pole magnet 1-4 in the rotor section. .
該ロータ部は軸受１―２により軸承され、また
多極マグネツト１―４の磁束の一方はロータ１―
６を介し、その磁路を閉じ、他の一方は発電コイ
ル１―８および駆動コイル１―１を貫通し、ヨー
ク１―３を介し、その磁路を閉じている。 The rotor portion is supported by a bearing 1-2, and one of the magnetic fluxes of the multipolar magnet 1-4 is connected to the rotor 1-2.
6, and the other one passes through the generating coil 1-8 and the drive coil 1-1, and closes the magnetic path through the yoke 1-3.
したがつて駆動コイル１―１に通電すると駆動
コイル１―１がヨーク１―３に固定されているの
で、多極マグネツト１―４に力が作用し、ロータ
部が回転する。かかるロータ部の回転により発電
コイル１―８を貫通する磁束が変化し、発電コイ
ル１―８の出力端に回転速度に対応した速度信号
が発生する。 Therefore, when the drive coil 1-1 is energized, since the drive coil 1-1 is fixed to the yoke 1-3, force acts on the multipolar magnet 1-4, causing the rotor to rotate. The rotation of the rotor portion changes the magnetic flux passing through the generator coil 1-8, and a speed signal corresponding to the rotational speed is generated at the output end of the generator coil 1-8.
しかし、上述した従来技術においては、駆動コ
イル１―１に通電するとこれにより誘導磁界が発
生し、この誘導磁界による磁束は発電コイル１−
８および多極マグネツト１―４を貫通し、ロータ
１―６およびヨーク１―３を介して閉磁路を形成
する。すなわち発電コイル１―８は駆動コイル１
−１の発生する磁束を囲んでいるため、駆動コイ
ル１―１への通電をスイツチング等により変化さ
せると、これによつて発生する磁界の変化は発電
コイル１−８の出力に誘導される。つまり、駆動
コイル１―１に流れる電流の変化が発電コイル１
―８の出力に表われロータ部の回転により得られ
る速度信号に重畳されるという欠点がある。 However, in the above-mentioned conventional technology, when the drive coil 1-1 is energized, an induced magnetic field is generated, and the magnetic flux due to this induced magnetic field is
8 and the multipolar magnet 1-4 to form a closed magnetic path via the rotor 1-6 and yoke 1-3. In other words, the generator coils 1-8 are the drive coils 1
-1 surrounds the generated magnetic flux, so when the energization to the drive coil 1-1 is changed by switching or the like, the resulting change in the magnetic field is induced to the output of the generator coil 1-8. In other words, the change in the current flowing through the drive coil 1-1 is
-8 output and is superimposed on the speed signal obtained from the rotation of the rotor section.
本発明の目的は、上記した従来技術の欠点をな
くし、ロータ部の回転による速度信号を主な出力
とし、駆動電流の変化による出力が速度信号出力
に比して十分小さく、かつコイルの引出しが簡単
な構造の周波数発電機及びその発電機付電動機を
提供することにある。
An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to use the speed signal generated by the rotation of the rotor as the main output, to ensure that the output due to changes in the drive current is sufficiently small compared to the speed signal output, and that the coil can be drawn out easily. An object of the present invention is to provide a frequency generator with a simple structure and a motor with the generator.
この目的を達成するため、本発明は発電コイル
への駆動コイルによる誘導出力に対し、駆動コイ
ルからの誘導出力が等しく、かつ逆相になり、同
時に少なくともロータの回転による速度信号の発
生を阻害しない構成の打ち消しコイルを発電コイ
ルの外周に沿つて設け、これを発電コイルに対し
直列に接続したことにある。
In order to achieve this object, the present invention makes the induced output from the driving coil equal to and in opposite phase to the induced output from the driving coil to the generator coil, and at the same time does not inhibit at least the generation of a speed signal due to the rotation of the rotor. A canceling coil of the configuration is provided along the outer periphery of the generating coil and is connected in series to the generating coil.
以下、実施例をもつて本発明を詳細に説明す
る。
Hereinafter, the present invention will be explained in detail with reference to Examples.
本発明の周波数発電機付電動機を第２図に示
す。 FIG. 2 shows a motor with a frequency generator according to the present invention.
すなわち、モータ部は駆動コイル２−１、軸受
２−２、および駆動コイル２−１、軸受２―２を
固着しているヨーク２―３とからなるステータ部
と、多極マグネツト２−４と軸２−５および多極
マグネツト２−４と軸２―５を固着しているロー
タ２―６からなるロータ部とから構成されてお
り、ステータ部とロータ部は軸方向空隙を介して
対向している。周波数発電機部はステータ部に対
し自由に回動できるように支持されているロータ
部の多極マグネツト２−４と、該多極マグネツト
２−４とヨーク２け３の間の空隙のステータ部に
設けられた該多極マグネツト２―４の極数の2n
＋１（ｎ＝１、２、３…）倍の本数で該多極マグ
ネツト２−４の着磁境界に平行に設けられた発電
線素２−７をもつ発電コイル２−８と、その外周
に配置された打ち消しコイル２−９とから構成さ
れている。 That is, the motor section includes a stator section consisting of a drive coil 2-1, a bearing 2-2, and a yoke 2-3 to which the drive coil 2-1 and bearing 2-2 are fixed, and a multipolar magnet 2-4. It is composed of a rotor section consisting of a shaft 2-5, a multipolar magnet 2-4, and a rotor 2-6 to which the shaft 2-5 is fixed, and the stator section and rotor section face each other with an axial gap in between. ing. The frequency generator section includes a multi-pole magnet 2-4 in the rotor section which is supported so as to be freely rotatable relative to the stator section, and a stator section in the gap between the multi-pole magnet 2-4 and the yoke 2-3. 2n of the number of poles of the multipolar magnet 2-4 provided in
+1 (n=1, 2, 3...) times the number of power generating coils 2-8 having power generating line elements 2-7 provided in parallel to the magnetized boundary of the multipolar magnet 2-4, and It is composed of canceling coils 2-9 arranged.
この打ち消しコイル２−９は第２図に示すよう
に、駆動コイル２−１が通電により発生する磁束
のうち、発電コイル２−８が囲む磁束に対し、ほ
ぼ等しい量の磁束を囲むように発電コイル２−８
の外周に配設されている。 As shown in FIG. 2, this canceling coil 2-9 generates power by surrounding almost the same amount of magnetic flux as the magnetic flux surrounded by the generating coil 2-8, out of the magnetic flux generated when the drive coil 2-1 is energized. coil 2-8
It is placed around the outer periphery of the .
また、打ち消しコイル２―９と発電コイル２−
８とは同一方向の磁束に対しては誘起される電圧
の向きが逆になるように互に直列に接続されてい
る。駆動コイル２―１が通電により発生する磁束
のうち、発電コイル２―８が囲む磁束とほぼ同等
の磁束を発電コイル２―８の最外周に沿つて円弧
状に配設された打ち消しコイル３―９２で囲む
と、打ち消しコイル３―９２の中心に対する角度
は全円周のほぼ3/4となつている。また、図示し
た状態でそれぞれ発電コイルを時計まわり方向に
流れる電流は、直列に接続された打ち消しコイル
を反時計まわり方向に流れる。すなわち、コイル
として互いに逆向きになつているため、同一磁束
に対しては誘起される電圧が逆向きになる。 In addition, the canceling coil 2-9 and the generating coil 2-
8 are connected in series with each other so that the direction of the induced voltage is opposite to magnetic flux in the same direction. Of the magnetic flux generated when the drive coil 2-1 is energized, a magnetic flux approximately equivalent to the magnetic flux surrounded by the generating coil 2-8 is transferred to a canceling coil 3- arranged in an arc shape along the outermost circumference of the generating coil 2-8. 92, the angle with respect to the center of the cancellation coil 3-92 is approximately 3/4 of the total circumference. Further, in the illustrated state, the current flowing clockwise through each of the generating coils flows counterclockwise through the canceling coils connected in series. That is, since the coils are oriented in opposite directions, the voltages induced for the same magnetic flux will be in opposite directions.
以上の構成において、第２図の動作を説明する
と、多極マグネツト２−４の磁束の一方は、ロー
タ２−６を介しその磁路を閉じ、他の一方は発電
コイル２―８打ち消しコイル２―９の面駆動コイ
ル２−１を貫通し、ヨーク２―３を介しその磁路
を閉じている。したがつて、駆動コイル２―１に
通電すると、多極マグネツト２―４と駆動コイル
２―１の間に力が作用し、駆動コイル２―１が固
定されているので、多極マグネツト２―４を含む
ロータ部が回転する。かかる回転により発電コイ
ル２−８を貫通する磁束が変化するので、発電コ
イル２―８に速度信号が表われる。また、駆動コ
イル２―１に流れる磁束により、発電コイル２―
８に出力が誘起するが、前記打ち消しコイル２―
９にも同じ大きさで極性が反対の出力が誘起さ
れ、これを打ち消すため、周波数発電機出力には
速度信号のみが現われる。 In the above configuration, the operation shown in FIG. 2 will be explained. One side of the magnetic flux of the multipolar magnet 2-4 closes its magnetic path via the rotor 2-6, and the other side closes its magnetic path through the generating coil 2-8 and the canceling coil 2. -9, and closes its magnetic path via the yoke 2-3. Therefore, when the drive coil 2-1 is energized, a force acts between the multipolar magnet 2-4 and the drive coil 2-1, and since the drive coil 2-1 is fixed, the multipolar magnet 2-1 The rotor section including 4 rotates. Due to this rotation, the magnetic flux passing through the generator coil 2-8 changes, so a speed signal appears in the generator coil 2-8. Also, due to the magnetic flux flowing through the drive coil 2-1, the power generation coil 2-
Although the output is induced in the canceling coil 2-
9, an output of the same magnitude and opposite polarity is induced, and in order to cancel this, only the speed signal appears in the frequency generator output.
このように、本発明によれば駆動コイルにより
誘起される電圧が原理的に打ち消され、周波数発
電機のS/N比性能が簡単な構造の打ち消しコイル
をつけることにより大幅に向上でき、またそれに
より制御系の構成を簡略化できる２次的効果も有
する、さらに発電コイルの外側に打ち消しコイル
を配置することによりコイルの出力を外部へ直接
取り出すことができるので、構造が簡単になる偏
平モータに最も適した構成である。
As described above, according to the present invention, the voltage induced by the drive coil can be canceled in principle, and the S/N ratio performance of the frequency generator can be greatly improved by adding a canceling coil with a simple structure. This also has the secondary effect of simplifying the configuration of the control system.Furthermore, by arranging the cancellation coil outside the generating coil, the output of the coil can be taken out directly to the outside, making it possible to create a flat motor with a simpler structure. This is the most suitable configuration.
第１図は従来の周波数発電機付電動機の分解斜
視図、第２図は本発明による打ち消しコイルを備
えた周波数発電機付電動機の実施例の分解斜視図
である。
２―１…駆動コイル、２―４…多極マグネツ
ト、２―８…発電コイル、２―９…打ち消しコイ
ル。
FIG. 1 is an exploded perspective view of a conventional electric motor with a frequency generator, and FIG. 2 is an exploded perspective view of an embodiment of the electric motor with a frequency generator equipped with a cancellation coil according to the present invention. 2-1... Drive coil, 2-4... Multipolar magnet, 2-8... Generator coil, 2-9... Cancellation coil.
Claims (1)
磁された円環状の多極マグネツトと、該多極マグ
ネツトの該多磁極の境界に平行な発電線素群を有
し該多極マグネツトに対し軸方向空隙を介して対
向する発電コイル、および該発電コイルと平行な
平面上で該発電コイルによつて囲まれる駆動コイ
ル等多極マグネツト以外の磁束発生源からの磁束
とほぼ等しい量の該磁束発生源からの磁束を囲む
よう該発電コイルの外周に沿つて円弧状に配設さ
れるとともに該発電コイルと直列に接続された打
ち消しコイルとから構成されたことを特徴とする
周波数発電機。 ２ 軸方向に着磁されかつ一平面上に多磁極に着
磁された円環状の多極マグネツトを具備してなる
ロータ部と、該多極マグネツトに対し軸方向空隙
を介して対向する駆動コイルおよびヨークからな
るステータ部とから構成されるロータ部と、該ロ
ータ部と該ステータ部の間に該多極マグネツトに
対し軸方向空隙を介して対向する該多極マグネツ
トの磁極の境界に平行な発電線素群からなる発電
コイルと、該発電コイルによつて囲まれる駆動コ
イル等多極マグネツト以外の磁束発生源からの磁
束とほぼ等しい量の該磁束発生源からの磁束を囲
むように発電コイルの外周に沿つて円弧状に配設
されるとともに該発電コイルと直列に接続された
打ち消しコイルとから構成されることを特徴とす
る周波数発電機付電動機。[Scope of Claims] 1. An annular multi-pole magnet magnetized in the axial direction and multi-pole on one plane, and a group of power generating line elements parallel to the boundaries of the multi-pole of the multi-polar magnet. from a magnetic flux generation source other than the multipolar magnet, such as a power generation coil that faces the multipolar magnet through an axial gap, and a drive coil surrounded by the power generation coil on a plane parallel to the power generation coil. and a canceling coil arranged in an arc shape along the outer periphery of the generating coil so as to surround the magnetic flux from the magnetic flux generating source in an amount approximately equal to the magnetic flux of the generating coil, and connected in series with the generating coil. A frequency generator featuring: 2. A rotor portion comprising an annular multi-pole magnet magnetized in the axial direction and multi-pole on one plane, and a drive coil facing the multi-polar magnet with an axial gap in between. and a stator section consisting of a yoke; A power generation coil consisting of a group of power generation wire elements, and a power generation coil surrounded by the power generation coil so as to surround almost the same amount of magnetic flux from the magnetic flux generation source other than the multipolar magnet, such as a drive coil. 1. An electric motor with a frequency generator, comprising a canceling coil arranged in an arc shape along the outer periphery of the generator coil and connected in series with the generator coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19084782A JPS58119759A (en) | 1982-11-01 | 1982-11-01 | Frequency generator and motor with the same generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19084782A JPS58119759A (en) | 1982-11-01 | 1982-11-01 | Frequency generator and motor with the same generator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50127768A Division JPS5835027B2 (en) | 1975-10-23 | 1975-10-23 | ``Shiyuhasuuhatsudenki'' |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58119759A JPS58119759A (en) | 1983-07-16 |
| JPS6236459B2 true JPS6236459B2 (en) | 1987-08-07 |
Family
ID=16264759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19084782A Granted JPS58119759A (en) | 1982-11-01 | 1982-11-01 | Frequency generator and motor with the same generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119759A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5291109A (en) * | 1976-01-26 | 1977-08-01 | Hitachi Ltd | Motor with frequency generator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5251510A (en) * | 1975-10-23 | 1977-04-25 | Hitachi Ltd | Frequency generator and motor with that generator |
-
1982
- 1982-11-01 JP JP19084782A patent/JPS58119759A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5251510A (en) * | 1975-10-23 | 1977-04-25 | Hitachi Ltd | Frequency generator and motor with that generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58119759A (en) | 1983-07-16 |
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