JPS6369449A - Phase conversion type motor - Google Patents
Phase conversion type motorInfo
- Publication number
- JPS6369449A JPS6369449A JP21451486A JP21451486A JPS6369449A JP S6369449 A JPS6369449 A JP S6369449A JP 21451486 A JP21451486 A JP 21451486A JP 21451486 A JP21451486 A JP 21451486A JP S6369449 A JPS6369449 A JP S6369449A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- phase
- center
- circuit
- monophase
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 29
- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 230000010355 oscillation Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000006698 induction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Induction Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はパラメトリック発振を利用して単相交流を９０
°の位相差のある単相交流に変換する相数変換器と、こ
れにより駆動される電動機とを一体化した相数変換形電
動機に関する。Detailed Description of the Invention (Industrial Application Field) The present invention utilizes parametric oscillation to generate single-phase AC at 90°C.
The present invention relates to a phase converter type electric motor that integrates a phase converter that converts into single-phase alternating current with a phase difference of .degree., and a motor driven by the converter.
（従来の技術）
従来、パラメトリック回路を応用した相数変換器は、相
数・周波数変換が出来ること、良好な定電圧特性、過負
荷保護特性及び垂下特性を有すること、効率が良いこと
及び入力電圧波形が歪波形でも良好な正弦波の出力電圧
波形が得られること等のため、定電圧回路、逓倍器、分
周器として利用されている。(Prior art) Conventionally, phase number converters applying parametric circuits have the ability to convert the number of phases and frequency, have good constant voltage characteristics, overload protection characteristics, and droop characteristics, have good efficiency, and have low input power. Since a good sine wave output voltage waveform can be obtained even if the voltage waveform is a distorted waveform, it is used as a constant voltage circuit, a multiplier, and a frequency divider.
またこの出力電圧により駆動される電動機は前記各特性
により、安定した回転が出来るので、サーボ系の動力等
に利用されている。Further, the electric motor driven by this output voltage can rotate stably due to the above-mentioned characteristics, so it is used for motive power of a servo system, etc.
（発明が解決しようとする問題点）
上述のように安定した動作が可能であるが、相数変換器
と電動機とが必要で有り、サーボ系等の場合、回路が複
雑になり小型化が困難である。(Problems to be solved by the invention) Stable operation is possible as described above, but a phase converter and an electric motor are required, and in the case of a servo system, the circuit becomes complicated and miniaturization is difficult. It is.
本発明は上記の問題を解決して、小型で安定に動作する
相数変換形電動機を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a phase converting electric motor that is small and operates stably.
（問題を解決するための手段）
本発明は枠形の外部磁心１と、この外部磁心１の枠の内
側で、前記枠の中心部２を通る直交した二直線上に前記
外部磁心１の内側に当接して設けた４個の内部磁心３−
１ 、３−２ 、３−３ 、３−４と、前記枠の中心部
２に設けた回転子４と、前記外部磁心１で前記内部磁心
３−１ 、３−２ 、３−３ 、３−４が当接している
個所の中間の対向する二辺にそれぞれ設けて直列接続さ
れた一次巻線５．６と、同じく他の対向する二辺にそれ
ぞれ設けて直列に接続されかつ他端にコンデンサＣ，を
接続された二次巻線７．８とよりなるものである。(Means for Solving the Problem) The present invention includes a frame-shaped external magnetic core 1, and an inner side of the external magnetic core 1 on two orthogonal straight lines passing through the center part 2 of the frame. Four internal magnetic cores 3- provided in contact with
1, 3-2, 3-3, 3-4, a rotor 4 provided in the center part 2 of the frame, and the internal magnetic cores 3-1, 3-2, 3-3, 3 in the external magnetic core 1. - The primary windings 5.6 are connected in series on two opposing sides in the middle of the point where 4 is in contact with the primary windings 5. It consists of a secondary winding 7.8 to which a capacitor C is connected.
（作用）
上述のように、相数変換器と電動機とを一体化すること
により、相数変換器の長所を総て持った電動機となるの
で、入力電圧、入力波形に係わらず常に一定の回転数が
保持出来る。(Function) As mentioned above, by integrating the phase number converter and the motor, the motor has all the advantages of the phase number converter, so it always rotates at a constant rate regardless of the input voltage or input waveform. Can hold numbers.
（実施例）
第１図は本発明の相数変換形電動機の一実施例の構成図
で、（イ）は平面図、（ロ）は（イ）示のＡ−Ａ断面図
である。各磁心は厚さ０．３５ｍｍのケイ素鋼板を使用
した■形磁心１−１ 、１−２ 、１−３ 、１−４を
４個組み合わせて四角形の枠形の外部磁心１を構成し、
前記枠の内側には枠の中心部２に向かうように前記各Ｉ
形磁心１−１ 、１−２ 、１−３ 、１−４に垂直に
内部磁心３−１ 、３−２ 、３−３ 、３−４が設け
てあり、この内部磁心３−１と３−２及び３−３と３−
４とはそれぞれ一直線をなし、かつ中心部２で直交して
いる。これらの内部磁心の中心部２に対向する面は同−
円筒面を形成してあり、この円筒面内に中心部２に軸を
持った回転子４が設けである。(Embodiment) FIG. 1 is a configuration diagram of an embodiment of a phase conversion type electric motor of the present invention, in which (A) is a plan view and (B) is a sectional view taken along the line A-A shown in (A). Each magnetic core is made of a silicon steel plate with a thickness of 0.35 mm, and four ■-shaped magnetic cores 1-1, 1-2, 1-3, and 1-4 are combined to form a rectangular frame-shaped external magnetic core 1.
Inside the frame, each of the I
Internal magnetic cores 3-1, 3-2, 3-3, and 3-4 are provided perpendicularly to the shaped magnetic cores 1-1, 1-2, 1-3, and 1-4. -2 and 3-3 and 3-
4 form a straight line, and are perpendicular to each other at the center 2. The surfaces facing the center part 2 of these internal magnetic cores are the same.
A cylindrical surface is formed, and a rotor 4 having a shaft at the center 2 is provided within this cylindrical surface.
外部磁心１の各Ｉ形磁心にはそれぞれ巻線５゜６．７．
８が同−巻き方向に設けである。これらの巻線はいずれ
も直径１．２Ｈのフォルマール線を２５０回巻いたもの
で、このうち対向する二辺１−１゜１−２の巻線５，６
の巻始め５ａと巻終わり６ｂとは接続してあり、巻終わ
り５ｂと巻始め６ａとに単相入力電源９を接続して一次
巻線としである。他の対向する二辺１−３ 、１−４の
巻線７．８の巻始め７ａと巻終わり８ｂとは接続してあ
り、巻終わり７ｂと巻始め８ａとの間にはコンデンサｃ
ｏが接続して二次巻線としである。Each I-shaped core of the external magnetic core 1 has a winding of 5°6.7.
8 is provided in the same winding direction. Each of these windings is a formal wire with a diameter of 1.2H wound 250 times.
The winding start 5a and the winding end 6b are connected, and a single-phase input power source 9 is connected to the winding end 5b and the winding start 6a to form a primary winding. The winding start 7a and the winding end 8b of the windings 7.8 on the other two opposing sides 1-3 and 1-4 are connected, and a capacitor c is connected between the winding end 7b and the winding start 8a.
o is connected to serve as the secondary winding.
回転子４は通常の単相誘導電動機のかご形回転子である
。The rotor 4 is a squirrel cage rotor of a normal single-phase induction motor.
次にその作用について説明する。Next, its effect will be explained.
第２図は本発明の電動機の等価回路で、二次側の外側部
分がパラメトリック回路、内側部分が単相誘導電動機の
みの等価回路である。−次側の磁気回路と二次側の磁気
回路とは前記中心部２で直交しており、二次側の巻線７
．８の直列回路にはコンデンサＧＯが並列に接続されて
いる。なお出力側のりアクドルＬ、は特性改善用のもの
で、基本動作には関係ない。FIG. 2 shows an equivalent circuit of the motor of the present invention, in which the outer part on the secondary side is a parametric circuit, and the inner part is an equivalent circuit of only a single-phase induction motor. - The magnetic circuit on the next side and the magnetic circuit on the secondary side are perpendicular to each other at the center 2, and the secondary side winding 7
．． A capacitor GO is connected in parallel to the series circuit 8. Note that the output side steering wheel L is for improving characteristics and is not related to basic operation.
二次側の巻線７．８とコンデンサＣ，とでパラメトリッ
ク発振回路を構成しているので、第２図示のように一次
側の巻線５．６の直列回路に単相入力電源９ （電圧Ｖ
ｉｎ）を接続すると、二次側にパラメトリック発振が
生じ、９０゛の位相差を有する出力電圧Ｖｏｕｔが発生
する。この結果前記中心部２には２相の回転磁界が発生
する。Since the secondary winding 7.8 and the capacitor C constitute a parametric oscillation circuit, the single-phase input power supply 9 (voltage V
(in), parametric oscillation occurs on the secondary side, and an output voltage Vout having a phase difference of 90° is generated. As a result, a two-phase rotating magnetic field is generated in the central portion 2.
第３図は本発明の電動機の入力電圧（Ｖ １ｎ）−出力
電圧（Ｖｏｕｔ）特性及び入力電圧（Ｖｉｎ）・−回転
数（Ｎ）特性である。二次側の並列のコンデンサ Ｃｏ
＝３３μＦ にして、入力電圧Ｖｉｎを徐々に増加し
て行くと、 Ｖｉｎ＝７２Ｖ で出力側にパラメトリ
ック発振が生じて出力電圧Ｖｏｕｔが生じ、更に入力電
圧を増大しても出力電圧は略一定の２００■となってい
て定電圧特性が良いことを示している。FIG. 3 shows the input voltage (V 1n)-output voltage (Vout) characteristic and the input voltage (Vin)--rotation speed (N) characteristic of the electric motor of the present invention. Parallel capacitor Co on the secondary side
= 33μF and gradually increasing the input voltage Vin, parametric oscillation occurs on the output side at Vin = 72V, producing the output voltage Vout, and even if the input voltage is further increased, the output voltage remains approximately constant at 200V. ■ indicates good constant voltage characteristics.
入力電圧Ｖｉｎと出力電圧Ｖｏｕｔの波形は第４図（イ
）示のように位相差が９０°を保持したままで変化せず
、良好な定電圧特性を示している。この図では ｖｉｎ
＝８０Ｖ の時の例である。同図（ロ）示は（イ）示の
時の電圧ベクトル図である。As shown in FIG. 4(a), the waveforms of the input voltage Vin and the output voltage Vout do not change while maintaining the phase difference of 90°, indicating good constant voltage characteristics. In this diagram vin
This is an example when =80V. The figure (b) is a voltage vector diagram at the time shown in (a).
入力電圧Ｖｉｎと回転数Ｎの特性は第３図示のように入
力電圧Ｖｉｎが７２Ｖ以上の定電圧特性の良い所では１
３５０ｒｐｍと一定の値を示している。本電動機の場合
、２対の磁極で出来ているので極数は４極であり、同期
速度ｎｓは極数ｐ、周波数ｆとすると
ｎ５＝１２Ｏｆ ／ ｐ ｒｐｍ
従って基本波（５０Ｈｚ）の場合、ｎｓ −１５０Ｏｒ
ｐｌ＋であるが、実測値は１３５０ｒｐｍと回転速度が
下まわっている。これは誘導電動機のすべり現象と本試
作機の外部磁心１の断面積に対して内部磁心３の断面積
が小さいので飽和状態となり、磁極を通るべき回転磁界
が外部に漏洩してしまうためである。The characteristics of input voltage Vin and rotation speed N are 1 as shown in Figure 3, where the input voltage Vin is 72V or more and the constant voltage characteristics are good.
It shows a constant value of 350 rpm. In the case of this motor, it is made of two pairs of magnetic poles, so the number of poles is 4. If the synchronous speed ns is the number of poles p and the frequency f, then n5 = 12Of / p rpm. Therefore, in the case of the fundamental wave (50Hz), ns -150Or
Although it is pl+, the actual measured value is 1350 rpm, which is lower than the rotation speed. This is due to the slip phenomenon of the induction motor and the fact that the cross-sectional area of the internal magnetic core 3 is smaller than the cross-sectional area of the external magnetic core 1 of this prototype, resulting in a saturated state, and the rotating magnetic field that should pass through the magnetic poles leaks to the outside. .
なお上記の実施例では外部磁心１は四角形の枠形である
が、対向している内部磁心３−１ 、３−２及び３−３
、３−４を結ぶ線が上記のように直交していれば外部
磁心は例えば円形でも良い。また、２対磁極のうち１対
の磁極には、くま取りコイルを設け、磁極間に移動磁界
を生じさせ、始動トルクが得られるようにすると、始動
性が向上し、回転方向も決定される。In the above embodiment, the external magnetic core 1 has a rectangular frame shape, but the opposing internal magnetic cores 3-1, 3-2, and 3-3
, 3-4 are orthogonal as described above, the external magnetic core may be circular, for example. In addition, a shade coil is provided on one pair of magnetic poles to create a moving magnetic field between the magnetic poles and obtain starting torque, which improves starting performance and determines the direction of rotation. .
（発明の効果）
相数変換器と電動機とが磁気的に一体化したもので、入
力電圧の変動に対しても一定回転数を保持出来るので別
に定電圧回路は必要としない。(Effects of the Invention) Since the phase number converter and the motor are magnetically integrated, a constant rotation speed can be maintained even when the input voltage fluctuates, so a separate constant voltage circuit is not required.
また出力側に負荷変動があっても、出力側の磁気回路が
独立しているので、例え短絡しても発振停止のみで磁気
回路及び電動機等には一切損傷はない。Furthermore, even if there is a load change on the output side, the magnetic circuit on the output side is independent, so even if there is a short circuit, the oscillation will simply stop and there will be no damage to the magnetic circuit or motor.
各内部磁極（固定子）にはスロットを必要としないので
、構造が簡単である。The structure is simple because each internal magnetic pole (stator) does not require slots.
更に周波数変換も可能である。Furthermore, frequency conversion is also possible.
第１図は本発明の相数変換形電動機の構成図で、（イ）
示は平面図、（ロ）示は（イ）示の＾−八へ面図、第２
図はその等価回路図、第３図はその入力電圧−出力電圧
及び入力電圧−回転数の特性図、第４図は、（イ）は入
力電圧及び出力電圧の波形図、（ロ）は同じくベクトル
図である。
１：外部磁心、 ３：内部磁心、 ４：回転子、５．６
：−次巻線、 ７，８：二次巻線、Ｃｏ ：コンデンサ
。Figure 1 is a block diagram of the phase conversion type electric motor of the present invention, (a)
Shown is a plan view, (B) is a ^-8 side view of (B), No.
The figure is its equivalent circuit diagram, Figure 3 is its input voltage-output voltage and input voltage-speed characteristic diagram, and Figure 4 is (a) a waveform diagram of input voltage and output voltage, (b) is the same. It is a vector diagram. 1: External magnetic core, 3: Internal magnetic core, 4: Rotor, 5.6
:-secondary winding, 7, 8: secondary winding, Co: capacitor.
Claims (1)
の中心部を通る直交した二直線上に前記外部磁心の内側
に当接して設けた４個の内部磁心と、前記枠の中心部に
設けた回転子と、前記外部磁心で前記内部磁心が当接し
ている個所の中間の対向する二辺にそれぞれ設けて直列
接続された一次巻線と、同じく他の対向する二辺にそれ
ぞれ設けて直列に接続されかつ他端にコンデンサを接続
された二次巻線とよりなる相数変換形電動機。A frame-shaped external magnetic core, four internal magnetic cores provided inside the frame of the external magnetic core and in contact with the inside of the external magnetic core on two orthogonal lines passing through the center of the frame, and A rotor provided at the center, primary windings provided and connected in series on two opposite sides of the outer magnetic core in the middle of the point where the internal magnetic core is in contact with each other, and primary windings connected in series on the other two opposite sides. A phase conversion type electric motor consisting of secondary windings each connected in series and having a capacitor connected to the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21451486A JPS6369449A (en) | 1986-09-10 | 1986-09-10 | Phase conversion type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21451486A JPS6369449A (en) | 1986-09-10 | 1986-09-10 | Phase conversion type motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6369449A true JPS6369449A (en) | 1988-03-29 |
Family
ID=16656984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21451486A Pending JPS6369449A (en) | 1986-09-10 | 1986-09-10 | Phase conversion type motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6369449A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218372A (en) * | 1988-01-15 | 1989-08-31 | Alexander J Lewus | Series resonance capacitor motor |
| US5557248A (en) * | 1994-02-24 | 1996-09-17 | Synektron Corporation | Magnetizer for magnets with shaped magnetic waveform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716734A (en) * | 1971-10-18 | 1973-02-13 | Canadian Patents Dev | Parametric motor |
| JPS5036004B1 (en) * | 1971-05-10 | 1975-11-20 | ||
| JPS5513667A (en) * | 1978-07-15 | 1980-01-30 | Matsushita Electric Works Ltd | Single-phase induction motor |
| JPS60180462A (en) * | 1984-02-27 | 1985-09-14 | Kazuo Bessho | High speed hybrid induction motor |
-
1986
- 1986-09-10 JP JP21451486A patent/JPS6369449A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5036004B1 (en) * | 1971-05-10 | 1975-11-20 | ||
| US3716734A (en) * | 1971-10-18 | 1973-02-13 | Canadian Patents Dev | Parametric motor |
| JPS5513667A (en) * | 1978-07-15 | 1980-01-30 | Matsushita Electric Works Ltd | Single-phase induction motor |
| JPS60180462A (en) * | 1984-02-27 | 1985-09-14 | Kazuo Bessho | High speed hybrid induction motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218372A (en) * | 1988-01-15 | 1989-08-31 | Alexander J Lewus | Series resonance capacitor motor |
| US5557248A (en) * | 1994-02-24 | 1996-09-17 | Synektron Corporation | Magnetizer for magnets with shaped magnetic waveform |
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