JPH02168842A - 4-phase hybrid stepping motor - Google Patents

4-phase hybrid stepping motor

Info

Publication number
JPH02168842A
JPH02168842A JP32072388A JP32072388A JPH02168842A JP H02168842 A JPH02168842 A JP H02168842A JP 32072388 A JP32072388 A JP 32072388A JP 32072388 A JP32072388 A JP 32072388A JP H02168842 A JPH02168842 A JP H02168842A
Authority
JP
Japan
Prior art keywords
stepping motor
magnetic poles
stator
step angle
phase hybrid
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.)
Granted
Application number
JP32072388A
Other languages
Japanese (ja)
Other versions
JP2739332B2 (en
Inventor
Masabumi Sakamoto
正文 坂本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Advanced Motor Corp
Original Assignee
Japan Servo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Servo Corp filed Critical Japan Servo Corp
Priority to JP63320723A priority Critical patent/JP2739332B2/en
Publication of JPH02168842A publication Critical patent/JPH02168842A/en
Application granted granted Critical
Publication of JP2739332B2 publication Critical patent/JP2739332B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To facilitate setting of step angle by setting the number of pole teeth formed in the magnetic pole of rotor for a stepping motor to a multiple of 30 thereby setting the step angle to an integer. CONSTITUTION:When the number Z of pole teeth of the rotor for a stepping motor is set to a multiple of 30, Z=30m (m is a positive integer). Step angle thetaS for four-phase motor can be determined according to formula (1) and a practical integer step angle thetaS can be obtained. By such arrangement, step angle thetaS of a stepping motor to be employed for indexing or divider driving can be set easily.

Description

【発明の詳細な説明】 「産業上の利用分野] 本発明はインデックスやデバイダ−等の端数のないステ
ップ角を必要とする用途に好適な4相ハイブリッド形ス
テツピングモータに関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a four-phase hybrid stepping motor suitable for applications such as indexes and dividers that require a step angle with no fraction.

[従来の技術] 従来のハイブリッド形ステッピングモータとしては2相
が主流を占めており、たとえば第4図のように構成され
ている。
[Prior Art] Conventional hybrid stepping motors are mainly two-phase motors, and are configured as shown in FIG. 4, for example.

同図において、1は固定子ハウジング、2は固定子鉄心
で、これは磁極2−1〜2−8を構成されている。
In the figure, 1 is a stator housing, and 2 is a stator core, which constitutes magnetic poles 2-1 to 2-8.

2−10は各磁極の内周に形成された極歯である。2-10 are pole teeth formed on the inner periphery of each magnetic pole.

3は固定子巻線で、前記各磁極に3−1〜3−8で示す
ように巻かれている。
3 is a stator winding, which is wound around each of the magnetic poles as shown at 3-1 to 3-8.

これら固定子鉄心2.固定子巻線3で固定子Sが構成さ
れる。
These stator cores2. A stator S is composed of the stator winding 3.

4.4′はエンI・ブラケット、5,5”は軸受である
4.4' is an en-I bracket, and 5.5'' is a bearing.

6は回転子軸、7,8はそれぞれ回転子磁極7−10と
8−10はそれぞれ回転子磁極7.8の外周に形成され
た極歯、9は永久磁石である。
6 is a rotor shaft, 7 and 8 are rotor magnetic poles 7-10 and 8-10, respectively, are pole teeth formed on the outer periphery of the rotor magnetic pole 7.8, and 9 is a permanent magnet.

これら6〜9で回転子Rが構成される。These 6 to 9 constitute a rotor R.

[発明が解決しようとする課題] ステッピングモータのステップ角θ5は、固定子巻線の
相数Pと回転子磁極に設けた極歯数Zによって (1)
式のように定められ。
[Problem to be Solved by the Invention] The step angle θ5 of the stepping motor is determined by the number of phases P of the stator winding and the number Z of pole teeth provided on the rotor magnetic poles (1)
Established like a formula.

θl]−180/PZ(度)・・・・(1)ところでフ
インデックスやデバイダ−駆動用に使用されるステッピ
ングモータでは、その機械の性質」二から、ステップ角
を端数のない割り切れる数値にする必要があるか、たと
えば、0,2〜1.5度といった微小角を設定すること
は(1)式から判るように可成り困難であった。
θl] - 180/PZ (degrees)... (1) By the way, for stepping motors used to drive indexes and dividers, the step angle is set to a divisible number with no fractions due to the mechanical properties of the motor. As can be seen from equation (1), it is quite difficult to set a small angle of, for example, 0.2 to 1.5 degrees.

本発明はこのような従来のものの課題を解決するように
した4相ハイブリッド形ステッピングモータを提供する
ことを目的とする。
An object of the present invention is to provide a four-phase hybrid stepping motor that solves the problems of the conventional stepping motor.

[課題を解決するための手段] 本発明は基本的には当該ステッピングモータの回転子磁
極の極歯数を30の倍数に設定しな4相ハイブリッド形
ステツピンクモータに関する。
[Means for Solving the Problems] The present invention basically relates to a four-phase hybrid stepping motor in which the number of pole teeth of the rotor magnetic poles of the stepping motor is not set to a multiple of 30.

また、さらに、当該ステッピングモータの固定子の磁極
数を16個設け7この固定子磁極の各磁極の配設角度を α−22,5(:l;6/Z) β−22,5(]±10/Z) の条件を満足する2種類の角度α、βによってα、α1
β、α、α、β、α、βの順序の角度となるように18
0度の区間に配置される8個の磁極を配分して形成し、
これと点対称となるように他方の8個の磁極も同様に配
列するように構成した4相ハイブリッド形ステツピング
モータに関するものである。
Furthermore, the number of magnetic poles of the stator of the stepping motor is 16, and the arrangement angle of each magnetic pole of the stator magnetic poles is α-22,5 (: l; 6/Z) β-22,5 (] α, α1 by two types of angles α and β that satisfy the condition of ±10/Z)
18 so that the angle is in the order β, α, α, β, α, β
It is formed by distributing eight magnetic poles arranged in the 0 degree section,
The present invention relates to a four-phase hybrid stepping motor in which the other eight magnetic poles are arranged in a similar manner so as to be symmetrical with this.

[実施例] 以下第1図〜第2図に示ず一実施例について本発明を具
体的に説明する。
[Example] The present invention will be specifically described below with reference to an example not shown in FIGS. 1 and 2.

第1図は本発明を適用した4相のハイブリット形ステッ
ピングモータの固定子を示す平面図である。
FIG. 1 is a plan view showing a stator of a four-phase hybrid stepping motor to which the present invention is applied.

本発明者はこれまでの各種ステッピングモータの設計の
経験を活かして考察している過程で1本発明の基本的な
技術思想として1回転子磁極の極歯数Zを30の倍数即
ち Z=30m・・・・・ ・・  (2)(mは正の整数
ン としたとき7ステツプ角θ8は4相だからθ、=45/
Z(度) ・・ ・(3)で定まるため、第2図示の第
1表に示すような実用性のある割り切れるステップ角が
得られることを発明した。
The inventor of the present invention made use of his experience in designing various stepping motors in the process of considering the basic technical idea of the present invention, and determined that the number of pole teeth Z of one rotor magnetic pole is a multiple of 30, that is, Z = 30 m.・・・・・・ (2) (When m is a positive integer, 7 step angle θ8 is 4 phases, so θ, = 45/
Since it is determined by Z (degrees)... (3), it was invented that a practical and divisible step angle as shown in Table 1 shown in Figure 2 can be obtained.

また、さらにこの技術思想を基礎にして、各種用途に適
用するステッピングモータとしての適正な微小角を得る
ようにするため、固定子は16極とし、4相巻線を施し
、16極の磁極の満足すべき配設のための次の条件を考
えた。即ち。
Furthermore, based on this technical concept, in order to obtain an appropriate small angle for a stepping motor that can be applied to various applications, the stator is made with 16 poles, 4-phase winding is applied, and the 16 magnetic poles are The following conditions for a satisfactory arrangement were considered. That is.

α−22,5(116/Z)・・・・(4)β−22,
5(1±10/Z)・・・(5)の条件を満足する2種
類の角度α、βによって第1図示のように 一 α、α、β、α、α、β、α、βの順序の角度となるよ
うに固定子の180度の区間に配置される8個の磁極を
配分して形成し、これと点対称となるように他方の8個
の磁極も同様に配列するように構成するものである。
α-22,5 (116/Z)...(4) β-22,
5(1±10/Z)...By using two types of angles α and β that satisfy the condition (5), one α, α, β, α, α, β, α, β can be calculated as shown in the first diagram. Eight magnetic poles are distributed and formed in a 180 degree section of the stator so that the angle is in the order, and the other eight magnetic poles are similarly arranged so as to be symmetrical with this. It consists of

1、作用コ 本発明のステッピングモータは上記のように構成され、
固定子巻線に対し4相の電力を供給して励磁すると、前
記(2)式で決まるステップ角θBでステップ駆動され
る。
1. Function The stepping motor of the present invention is constructed as described above,
When four-phase power is supplied to the stator windings to excite them, the stator windings are driven in steps at a step angle θB determined by the above equation (2).

参考迄に、]6極のハイブリッド形ステッピンクモータ
に本発明を適用し m= 4. Z= 120.θ、== 0.375度と
した場合の設計例を示すと、第3図示の第2表に示すよ
うになる。
For reference, the present invention is applied to a 6-pole hybrid stepping motor with m=4. Z=120. A design example in the case where θ==0.375 degrees is shown in Table 2 shown in the third diagram.

同図第2表において、各記号は次の内容を表わすもので
ある。
In Table 2 of the same figure, each symbol represents the following content.

n: 16個の各磁極の番号 P:360度を 16等分した歯の部分でないコイルの
巻かれるスロワl〜を構成する部分の角変位置 A・各16極の先端の歯の位置であり、各16極の例え
ば、同1番目の歯間の角度位置A :Aに対応するもう
1つの位置例 AI、−A、、−1→α−21.375度β= 24.
375度 A、−A、、→α−23.625度 β= 20.625度 同図表から分かる通り、微小角0.375度におけるス
テッピングモータをその適用用途に応じて各種の設計条
件中から最適のものを選択すれば良く、可成りその設計
条件に自由度があることが示されている。
n: Number of each of the 16 magnetic poles P: Angular displacement position A of the part constituting the thrower l~ around which the coil is wound, which is not the part of the teeth that is obtained by dividing 360 degrees into 16 equal parts. It is the position of the tooth at the tip of each of the 16 poles. , For example, the angular position A between the first tooth of each of the 16 poles: Another position example AI corresponding to A, -A, -1→α-21.375 degrees β=24.
375 degrees A, -A, , → α - 23.625 degrees β = 20.625 degrees As can be seen from the same chart, the stepping motor at a minute angle of 0.375 degrees is optimized from among various design conditions depending on its application. It has been shown that there is a considerable degree of freedom in the design conditions.

[発明の効果] 本発明の4相ハイブリッド形ステツピングモータは、基
本的には回転子磁極の極歯を30の倍数となるよう設定
することであり、さらに、これに実用性を持たせるため
に、上記のように固定子磁極を16極とし、その各磁極
の配設角度を2種類の角度α2βで定まる特定の条件を
満足するように構成したものであり1次のような優れた
効果を有する。
[Effects of the Invention] The four-phase hybrid stepping motor of the present invention basically sets the pole teeth of the rotor magnetic poles to be a multiple of 30, and furthermore, in order to make this practical, In addition, as mentioned above, the stator magnetic poles are 16 poles, and the arrangement angle of each magnetic pole is configured to satisfy specific conditions determined by two types of angles α2β, and it has excellent effects such as the first order. has.

■実用的な1割り切れる数値となるステップ角の設定が
容易にできるため、インデックスやデバイダ−の用途に
使用されるステッピングモータの設計・製作が容易とな
った。
■Since it is easy to set the step angle to a practical value that is divisible by 1, it has become easier to design and manufacture stepping motors used for index and divider applications.

■小型な構成で、微小となるステップ角を製作できる。■With a compact configuration, minute step angles can be produced.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図〜第3図は本発明の一実施例を示すもので、この
内、第1図は固定子磁極の配設条件を示す縦断側面図、
第2図は回転子磁極の極歯数とステップ角の関係を示す
図表(第1表)、第3図はm= 4.2= 120  
θIl= 0.375度とした場合の本発明ステッピン
グモータの設計条件を示す図表(第2表)である。 又 第4図は従来例を示すもので、その内(イ)は縦断
正面図、(ロ)は(イ)のA−A@面図である。 S:固定子 10−1.1(12゜ :固定子磁極
1 to 3 show an embodiment of the present invention, in which FIG. 1 is a vertical side view showing the arrangement conditions of stator magnetic poles;
Figure 2 is a chart (Table 1) showing the relationship between the number of pole teeth of the rotor magnetic poles and the step angle, and Figure 3 is m = 4.2 = 120.
It is a chart (Table 2) showing the design conditions of the stepping motor of the present invention when θIl = 0.375 degrees. Further, FIG. 4 shows a conventional example, in which (A) is a longitudinal sectional front view, and (B) is an A-A @ side view of (A). S: Stator 10-1.1 (12°: Stator magnetic pole

Claims (2)

【特許請求の範囲】[Claims] 1.当該ステッピングモータの回転子磁極に形成する極
歯を30の倍数に設定するようにしたことを特徴とする
4相ハイブリッド形ステッピングモータ。
1. A four-phase hybrid stepping motor characterized in that the pole teeth formed on the rotor magnetic poles of the stepping motor are set to be a multiple of 30.
2.当該ステッピングモータの固定子の磁極数を16個
設け, この固定子磁極の各磁極の配設角度を α=22.5(1±6/Z) β=22.5(1±10/Z) の条件を満足する2種類の角度α,βによって,α,α
,β,α,α,β,α,βの順序の角度となるように1
80度の区間に配置される8個の磁極を配分して形成し
,これと点対称となるように他方の8個の磁極も同様に
配列するように構成した請求項1記載の4相ハイブリッ
ド形ステッピングモータ。
2. The number of magnetic poles of the stator of the stepping motor is 16, and the arrangement angle of each magnetic pole of this stator magnetic pole is α=22.5 (1±6/Z) β=22.5 (1±10/Z) By two types of angles α and β that satisfy the condition, α, α
, β, α, α, β, α, β so that the angles are in the order 1
The four-phase hybrid according to claim 1, wherein the four-phase hybrid is formed by distributing eight magnetic poles arranged in an 80-degree interval, and the other eight magnetic poles are arranged in the same way so as to be point symmetrical with this. type stepping motor.
JP63320723A 1988-12-21 1988-12-21 4-phase hybrid type stepping motor Expired - Fee Related JP2739332B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63320723A JP2739332B2 (en) 1988-12-21 1988-12-21 4-phase hybrid type stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63320723A JP2739332B2 (en) 1988-12-21 1988-12-21 4-phase hybrid type stepping motor

Publications (2)

Publication Number Publication Date
JPH02168842A true JPH02168842A (en) 1990-06-28
JP2739332B2 JP2739332B2 (en) 1998-04-15

Family

ID=18124606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63320723A Expired - Fee Related JP2739332B2 (en) 1988-12-21 1988-12-21 4-phase hybrid type stepping motor

Country Status (1)

Country Link
JP (1) JP2739332B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05227724A (en) * 1991-11-13 1993-09-03 Tamagawa Seiki Co Ltd Rotation method for stepping motor and rotor
JPH06121517A (en) * 1992-10-09 1994-04-28 Tamagawa Seiki Co Ltd Step motor and rotating method for rotator
WO2002015381A1 (en) * 2000-08-15 2002-02-21 Vladimir Nikolayevich Davidov Method and apparatus for controlling acceleration and velocity of a stepper motor
JP2012044826A (en) * 2010-08-23 2012-03-01 Minebea Motor Manufacturing Corp Hybrid type stepping motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277360A (en) * 1984-12-10 1986-12-08 Japan Servo Co Ltd Permanent magnet type stepping motor
JPS61285056A (en) * 1985-06-10 1986-12-15 Japan Servo Co Ltd Stepping motor of permanent magnet type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277360A (en) * 1984-12-10 1986-12-08 Japan Servo Co Ltd Permanent magnet type stepping motor
JPS61285056A (en) * 1985-06-10 1986-12-15 Japan Servo Co Ltd Stepping motor of permanent magnet type

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05227724A (en) * 1991-11-13 1993-09-03 Tamagawa Seiki Co Ltd Rotation method for stepping motor and rotor
JPH06121517A (en) * 1992-10-09 1994-04-28 Tamagawa Seiki Co Ltd Step motor and rotating method for rotator
WO2002015381A1 (en) * 2000-08-15 2002-02-21 Vladimir Nikolayevich Davidov Method and apparatus for controlling acceleration and velocity of a stepper motor
JP2012044826A (en) * 2010-08-23 2012-03-01 Minebea Motor Manufacturing Corp Hybrid type stepping motor

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JP2739332B2 (en) 1998-04-15

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