JPS6059828B2 - step motor - Google Patents
step motorInfo
- Publication number
- JPS6059828B2 JPS6059828B2 JP2067277A JP2067277A JPS6059828B2 JP S6059828 B2 JPS6059828 B2 JP S6059828B2 JP 2067277 A JP2067277 A JP 2067277A JP 2067277 A JP2067277 A JP 2067277A JP S6059828 B2 JPS6059828 B2 JP S6059828B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- magnetic pole
- pole teeth
- step motor
- present
- 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
- 230000005405 multipole Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 241001061198 Zenion Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Description
【発明の詳細な説明】 本発明はステップ モータに関する。[Detailed description of the invention] The present invention relates to a step motor.
第１図は本発明の゜ステップ モータの構造を示すも
ので、図において固定子４は、鉄心１の両端にコイル枠
２を設け、コイル枠２に巻線を巻装したコイル３を有し
ており、かつ該固定子４には磁極歯（第６図参照） ４
’が形成され、該磁極歯はコ、イル３に流れる電流によ
り励磁される。FIG. 1 shows the structure of the step motor of the present invention. In the figure, a stator 4 has a coil frame 2 provided at both ends of an iron core 1, and a coil 3 with a winding wire wound around the coil frame 2. and the stator 4 has magnetic pole teeth (see Fig. 6) 4
' is formed, and the magnetic pole teeth are excited by the current flowing through the coil 3.
さらに鉄心１と同軸に、軸５が形成され、軸受６を介し
て回転子７が回転自在に設けられ、該回転子７は磁極歯
４’と対向して配置されている。８はピオニンを示す。Further, a shaft 5 is formed coaxially with the iron core 1, and a rotor 7 is rotatably provided via a bearing 6, and the rotor 7 is disposed facing the magnetic pole teeth 4'. 8 indicates pyonin.
従来この種のステップ モータの回転子は第２−図に
示すことき着磁分布を有しており、又磁極歯は第３図に
示すごとき形状を有している。Conventionally, the rotor of this type of step motor has a magnetization distribution as shown in FIG. 2, and the magnetic pole teeth have a shape as shown in FIG.
第２図に示すような回転子７’と第３図に示すような磁
極歯４″とを、第４図に示すように対向させた場合、両
者の間のギャップを小さくすればそれだけ−効率がよく
なり、回転子の回転トルクが増加する。しかし同時に回
転子の吸引力が増加するため、起動負荷が大きくなり、
これを振り切つて回 転子を回転させるためにはより大
きな起動電流が必要である。本発明は上記の欠点を改善
し、起動負荷の低減を図つたステップ モータを提供す
るにある。第５図は本発明の回転子７を示すもので、回
転子の中心部に円形の同極部９を形成し、該同極部の外
側にＮ、Ｓ、Ｎ・・・と交互に磁極を放射状に形成する
。第６図は本発明の磁極歯４’を示すもので、該磁極歯
の中心に円形の同極部１０を形成する。同極部９、１０
は同じ極例えばＮ極対Ｎ”極、又はＳ極対Ｓ極というよ
うに選定する。このように同極部を有する回転子と磁極
歯とを第７図のように対向して配置する。この際同極部
間の反撥力ｆ。は、回転子７の多着磁部と磁極歯４’間
の吸引力ｆ、に比べて小となるように磁力を定める。
第７図に示すように本発明の回転子と磁極歯とを対向さ
せた場合、回転子の吸引力は、回転子と磁極歯の中心に
設けた同極部の反撥力により低減されるので、従来のス
テップ モータに比べ、起動負荷が小さいために起動電
流が少なくてすむ。さらに吸引力が小さいことから、軸
５ならびに軸受６の負担が低減されるため、軸、軸受の
摩耗を低減せしめることができる。 回転子と磁極歯と
のギャップを小さくすると、回転子の吸引力が増加する
が、同時に同極部の反撥力も増加するから、本発明の効
果は失われることはない。When the rotor 7' as shown in Fig. 2 and the magnetic pole teeth 4'' as shown in Fig. 3 are placed facing each other as shown in Fig. 4, the smaller the gap between them, the more efficient it becomes. The rotational torque of the rotor increases.However, at the same time, the suction force of the rotor increases, which increases the starting load.
In order to overcome this and rotate the rotor, a larger starting current is required. The present invention aims to improve the above-mentioned drawbacks and provide a step motor that reduces the starting load. FIG. 5 shows a rotor 7 of the present invention, in which a circular homopolar part 9 is formed in the center of the rotor, and magnetic poles are alternately arranged as N, S, N, etc. on the outside of the homopolar part 9. are formed radially. FIG. 6 shows a magnetic pole tooth 4' of the present invention, in which a circular homopolar portion 10 is formed at the center of the magnetic pole tooth. Same polar parts 9, 10
are selected to have the same poles, for example, N-pole vs. N'' pole, or S-pole vs. S-pole. In this way, the rotor and the magnetic pole teeth having the same polar portion are arranged facing each other as shown in FIG. At this time, the magnetic force is determined so that the repulsive force f between the same polar parts is smaller than the attractive force f between the multi-magnetized part of the rotor 7 and the magnetic pole teeth 4'.
When the rotor of the present invention and the magnetic pole teeth are opposed to each other as shown in FIG. 7, the attractive force of the rotor is reduced by the repulsive force of the same pole part provided at the center of the rotor and the magnetic pole teeth. , compared to traditional step motors, the starting load is smaller, so less starting current is required. Furthermore, since the suction force is small, the load on the shaft 5 and bearing 6 is reduced, so that wear on the shaft and bearings can be reduced. When the gap between the rotor and the magnetic pole teeth is reduced, the attractive force of the rotor increases, but at the same time, the repulsive force of the same pole portion also increases, so the effects of the present invention are not lost.
従つて、本発明においては、従来のステップ モータと
同一の起動電流であつても、従来のステップ モータに
比べてギャップが小、さくなり、より大きな回転トルク
を得ることが出来る効果を有する。Therefore, in the present invention, even if the starting current is the same as that of a conventional step motor, the gap is smaller than that of a conventional step motor, and a larger rotational torque can be obtained.
第１図は本発明のステップ モータの構成、第２図及ひ
第３図は従来の回転子と磁極歯、第４図はそれらの組立
構造、第５図及び第６図は本発明の回転子と磁極歯、第
７図はこれらの組立構造を示す。
１・・・・・・鉄心、２・・・・・・コイル枠、３・・
・・・コイル、４・・・・・・固定子、５・・・・・・
軸、６・・・・・・軸受、７・・・・・・回転子、８・
・・・・ゼニオン、９，１０・・・・・・同極部。Fig. 1 shows the configuration of the step motor of the present invention, Figs. 2 and 3 show the conventional rotor and magnetic pole teeth, Fig. 4 shows their assembly structure, and Figs. 5 and 6 show the rotation of the present invention. FIG. 7 shows their assembly structure. 1...Iron core, 2...Coil frame, 3...
...Coil, 4...Stator, 5...
Shaft, 6... bearing, 7... rotor, 8...
...Zenion, 9,10... Same polar part.
Claims (1)
歯と、該磁極歯に対向して放射状に多極着磁された回転
子とを備えるモータにおいて、前記磁極歯および回転子
の中心部に互いに同極に着磁された同極部をそれぞれ形
成したことを特徴とするステップモータ。1. In a motor comprising magnetic pole teeth of a stator that are excited by a current flowing through a coil, and a rotor that is radially multi-pole magnetized in opposition to the magnetic pole teeth, the magnetic pole teeth and the rotor have mutually disposed in the center. A step motor characterized in that each part has the same polarity magnetized to the same polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067277A JPS6059828B2 (en) | 1977-02-25 | 1977-02-25 | step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067277A JPS6059828B2 (en) | 1977-02-25 | 1977-02-25 | step motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53106406A JPS53106406A (en) | 1978-09-16 |
| JPS6059828B2 true JPS6059828B2 (en) | 1985-12-26 |
Family
ID=12033681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2067277A Expired JPS6059828B2 (en) | 1977-02-25 | 1977-02-25 | step motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059828B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10685643B2 (en) | 2011-05-20 | 2020-06-16 | Vocollect, Inc. | Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment |
-
1977
- 1977-02-25 JP JP2067277A patent/JPS6059828B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10685643B2 (en) | 2011-05-20 | 2020-06-16 | Vocollect, Inc. | Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53106406A (en) | 1978-09-16 |
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