JPS5878788U - Step motor structure - Google Patents

Step motor structure

Info

Publication number
JPS5878788U
JPS5878788U JP17400381U JP17400381U JPS5878788U JP S5878788 U JPS5878788 U JP S5878788U JP 17400381 U JP17400381 U JP 17400381U JP 17400381 U JP17400381 U JP 17400381U JP S5878788 U JPS5878788 U JP S5878788U
Authority
JP
Japan
Prior art keywords
rotor
stator
step motor
distance
slit portion
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
Application number
JP17400381U
Other languages
Japanese (ja)
Inventor
沢田　信治
正樹 大林
芳文 永井
Original Assignee
リコーエレメックス株式会社
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 リコーエレメックス株式会社 filed Critical リコーエレメックス株式会社
Priority to JP17400381U priority Critical patent/JPS5878788U/en
Publication of JPS5878788U publication Critical patent/JPS5878788U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来のステップモータの構造を示す平面図で、
第２図は第１図にロータを加えた断面図であり、第３図
は従来のモータの位置決めトルク曲線を示した特性図で
ある。第４図、第５図は本考案のロータ位置決め用磁性
板を示す平面図である。 １・・・・・・ステータ、２・・・・・・ロータ位置決
め用磁性板、３・・・・・・ロータ、４・・・・・・駆
動コイル、５，９・・・・・・スリット、６・・・・・
・駆動ギャップ、７・・・・・・円孔、　　　　　−８
・・・・・・磁束飽和部。Figure 1 is a plan view showing the structure of a conventional step motor.
FIG. 2 is a sectional view of FIG. 1 with the rotor added, and FIG. 3 is a characteristic diagram showing a positioning torque curve of a conventional motor. 4 and 5 are plan views showing the rotor positioning magnetic plate of the present invention. 1... Stator, 2... Magnetic plate for rotor positioning, 3... Rotor, 4... Drive coil, 5, 9... Slit, 6...
・Drive gap, 7... Circular hole, -8
...Magnetic flux saturation part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ロータ、ステータ、駆動コイルを主な構成要素とするス
テップモータにおいて、前記ロータと前記ステータの間
に、前記ロータの中心軸と対応した位置に駆動用磁束飽
和部と少なくとも１対のロータ位置決め用スリット部を
宥する孔を形成した磁性板を前記ステータを密着させて
配置し、且つ前記磁性板の礼は前記ロータ中心軸から前
記孔の周囲までの距離が、前記スリット部を起点にして
除々に短くなりロータの半ステップ分に相当する角度で
最短となり、また残りの半ステップ分に相当する角度で
除々に長くなるような形状であることを特徴とするステ
ップモータの構造。In a step motor whose main components are a rotor, a stator, and a drive coil, a drive magnetic flux saturation part and at least one pair of rotor positioning slits are provided between the rotor and the stator at a position corresponding to the central axis of the rotor. A magnetic plate formed with a hole for accommodating the slit portion is arranged in close contact with the stator, and the distance of the magnetic plate is such that the distance from the center axis of the rotor to the periphery of the hole gradually increases from the slit portion as a starting point. A structure of a step motor characterized in that the length becomes shortest at an angle corresponding to a half step of the rotor, and gradually becomes longer at an angle corresponding to the remaining half step.
JP17400381U 1981-11-20 1981-11-20 Step motor structure Pending JPS5878788U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17400381U JPS5878788U (en) 1981-11-20 1981-11-20 Step motor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17400381U JPS5878788U (en) 1981-11-20 1981-11-20 Step motor structure

Publications (1)

Publication Number Publication Date
JPS5878788U true JPS5878788U (en) 1983-05-27

Family

ID=29965941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17400381U Pending JPS5878788U (en) 1981-11-20 1981-11-20 Step motor structure

Country Status (1)

Country Link
JP (1) JPS5878788U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6328256A (en) * 1986-07-21 1988-02-05 Canon Inc Step motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6328256A (en) * 1986-07-21 1988-02-05 Canon Inc Step motor

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