JPS61164447A - Motor - Google Patents

Motor

Info

Publication number
JPS61164447A
JPS61164447A JP385485A JP385485A JPS61164447A JP S61164447 A JPS61164447 A JP S61164447A JP 385485 A JP385485 A JP 385485A JP 385485 A JP385485 A JP 385485A JP S61164447 A JPS61164447 A JP S61164447A
Authority
JP
Japan
Prior art keywords
rotor
motor
poles
stator
low
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
JP385485A
Other languages
Japanese (ja)
Inventor
Shinichiro Osawa
大澤　進一郎
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.)
OSAWA SEISAKUSHO KK
Original Assignee
OSAWA SEISAKUSHO KK
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 OSAWA SEISAKUSHO KK filed Critical OSAWA SEISAKUSHO KK
Priority to JP385485A priority Critical patent/JPS61164447A/en
Publication of JPS61164447A publication Critical patent/JPS61164447A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

PURPOSE:To obtain specified rotational frequency with low torque in the low and high speed rotation region, by organizing the rotor of four poles or six poles with a ferritic permanent magnet, and by forming a winding on a stator. CONSTITUTION:The rotor 3 of four poles or six poles is organized with a ferritic permanent magnet. A stator 4 is provided for the outer periphery of the rotor 3, and is formed with a winding as not shown in the figure, and is excited with current of sine wave, step wave, pulse wave or the like having the rotational angle of the rotor 3 and independent phase. In this manner, a motor for performing specified rotation with low torque in the low and high speed rotation region is produced at a low cost. The motor is suitable for NC- machine tools, industrial robots, printers and the like.

Description

【発明の詳細な説明】 この発明はモータに関するものである。[Detailed description of the invention] This invention relates to a motor.

従来より知られているモータの作動は固定子側に存在す
る電流を回転子導体に流れる電流との相互作用によりト
ルクを発生し行なわれているがその場合、固定子として
固定子永久磁石が使用され、回転子として巻線が使用さ
れている。Conventionally known motors operate by generating torque through the interaction of the current present in the stator with the current flowing through the rotor conductors, but in this case, stator permanent magnets are used as the stator. and windings are used as the rotor.

しかし、上記構成より成るモータは、例えばパルスモー
タのように低速回転域では良好であるが高速回転域では
かんばしくない等の不便さこの発明は前記欠点を解決し
たもので、低・高速回転域を問わず低トルクで所定の回
転数を得ることができるモータに関するものである。However, motors with the above configuration, such as pulse motors, are inconvenient in that they are good in low speed rotation ranges but not in high speed rotation ranges.This invention solves the above-mentioned drawbacks. The invention relates to a motor that can obtain a predetermined rotational speed with low torque regardless of the motor.

第１図は前述の従来のモータに関するもので、固定子１
に永久磁石を使用し、回転子２として巻線を使用してい
るん用のモータである。このモータは上記の欠点のほか
、回転子２という小さな部品に巻線を施さなくてはなら
ないので、高価なものであった。また、回転子の熱時定
数が小さいため、過電流による時間制限がきびしかった
。Figure 1 relates to the conventional motor mentioned above, with the stator 1
This is a general-purpose motor that uses permanent magnets for the rotor 2 and windings for the rotor 2. In addition to the above-mentioned drawbacks, this motor was expensive because a small component called the rotor 2 had to be wound. Furthermore, because the rotor has a small thermal time constant, there are severe time limitations due to overcurrent.

第２図はこの発明のモータに関するものである。回転子
３が永久磁石で構成され、固定子４側に巻線が施されて
成るモータである。FIG. 2 relates to the motor of this invention. This is a motor in which the rotor 3 is made of a permanent magnet and the stator 4 is provided with windings.

巻線は正弦波またはそれに類する波形でかつ、回転子の
回転角と独立した位相をもったステップ波、パルス波等
の電流で御磁されるものである。The windings are controlled by a current having a sine wave or a similar waveform, such as a step wave or a pulse wave, which has a phase independent of the rotation angle of the rotor.

この発明で使用した永久磁石は従来のコストの高いアル
ミ製ではなくフェライト磁石である。The permanent magnet used in this invention is a ferrite magnet instead of the conventional high-cost aluminum magnet.

フェライトは１３ＦｒＪ／／ｇ程度で入手できるもので
あり、従来のものと比較して１の価格で作成できるもの
である。Ferrite can be obtained for about 13FrJ//g, and can be produced at a price of 1/2 compared to conventional ferrite.

また、第２図では回転子に４極を採用したものを示した
が、第３図のように６極のものも安定したモータを得る
ことができる。Further, although FIG. 2 shows a rotor having four poles, a stable motor can also be obtained with a rotor having six poles as shown in FIG.

上記構成より成るモータはＮＯ工作機械、射出竪型機、
産業用ロボット、各種プリンタ等に有効に使用できるも
のである。The motor with the above configuration is used for NO machine tools, vertical injection machines,
It can be effectively used in industrial robots, various printers, etc.

また、上記構成より成るモータは以下の効果を奏するも
のである。Further, the motor having the above configuration has the following effects.

（１）従来のものより回転子速度を高めることができる
。２，０００回ｆ、／１分間　の能力を得ることができ
る。(1) The rotor speed can be increased compared to the conventional one. Capacity of 2,000 times f/min can be obtained.

（２）　　従来のものと比較して、固定子側に巻線を形
成するので巻線の占積率を高めることが可能である。(2) Compared to the conventional type, since the winding is formed on the stator side, it is possible to increase the space factor of the winding.

（３）固定子のスロット面積を大きくすることが可能で
ある。(3) It is possible to increase the slot area of the stator.

（４）　　さらにこの発明は永久磁石としてフェライト
磁石を使用しているので、安価にモータを形成できると
共に、加工が容易であり且つ、磁石厚さを薄くし、多極
にすることが可能である。そうすることにより、ギャッ
プ磁束密度を極めて高くすることができ、フィルエンド
による銅損も低減させることができる。(4) Furthermore, since this invention uses ferrite magnets as permanent magnets, it is possible to form a motor at low cost, it is easy to process, and it is possible to reduce the thickness of the magnet and make it multi-pole. . By doing so, the gap magnetic flux density can be made extremely high, and copper loss due to fill ends can also be reduced.

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

第１図は従来のモータの略図、第２図はこの発明のモー
タの正面図、第３図は回転子の他の実施例の正面図であ
る。 ３・・・回転子　　　　４・・・固定子５、添付書類の
目録FIG. 1 is a schematic diagram of a conventional motor, FIG. 2 is a front view of the motor of the present invention, and FIG. 3 is a front view of another embodiment of the rotor. 3...Rotor 4...Stator 5, list of attached documents

Claims (3)

【特許請求の範囲】[Claims] （１）回転子３に永久磁石を使用し、固定子４に巻線を
形成したことを特徴とするモータ。(1) A motor characterized in that a permanent magnet is used in the rotor 3 and a winding is formed in the stator 4. （２）永久磁石をフェライト磁石としたことを特徴とす
る特許請求の範囲第１項記載のモータ。(2) The motor according to claim 1, wherein the permanent magnet is a ferrite magnet. （３）回転子３の永久磁石を６極としたことを特徴とす
る特許請求の範囲第１項及び第２項記載のモータ。(3) The motor according to claims 1 and 2, characterized in that the permanent magnet of the rotor 3 has six poles.
JP385485A 1985-01-12 1985-01-12 Motor Pending JPS61164447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP385485A JPS61164447A (en) 1985-01-12 1985-01-12 Motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP385485A JPS61164447A (en) 1985-01-12 1985-01-12 Motor

Publications (1)

Publication Number Publication Date
JPS61164447A true JPS61164447A (en) 1986-07-25

Family

ID=11568766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP385485A Pending JPS61164447A (en) 1985-01-12 1985-01-12 Motor

Country Status (1)

Country Link
JP (1) JPS61164447A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846859A (en) * 1981-09-11 1983-03-18 Fanuc Ltd Synchronous motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846859A (en) * 1981-09-11 1983-03-18 Fanuc Ltd Synchronous motor

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