JPS61251460A - Coreless motor - Google Patents

Coreless motor

Info

Publication number
JPS61251460A
JPS61251460A JP9005485A JP9005485A JPS61251460A JP S61251460 A JPS61251460 A JP S61251460A JP 9005485 A JP9005485 A JP 9005485A JP 9005485 A JP9005485 A JP 9005485A JP S61251460 A JPS61251460 A JP S61251460A
Authority
JP
Japan
Prior art keywords
armature
coil
magnet
cup
coreless motor
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
JP9005485A
Other languages
Japanese (ja)
Inventor
Naoaki Morino
修明 森野
Yoshitaka Tsunoda
吉隆 角田
Norimasa Kondo
近藤　典正
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9005485A priority Critical patent/JPS61251460A/en
Publication of JPS61251460A publication Critical patent/JPS61251460A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/56—Motors or generators having iron cores separated from armature winding

Abstract

PURPOSE:To obtain a coreless motor of high efficiency and high power by effectively activating a coil end by the alteration of the shape of an armature coil and the addition of a sub magnet, thereby adding a torque in the novel effective coil unit. CONSTITUTION:The coils of a cup-shaped armature 1 are radially arranged on the bottom of the cup, formed in the shape connected with the outer periphery cylinder, and effective coils 1a, 1a' are formed at the cylinder and the cup bottom, respectively. A main magnet 2 is provided oppositely to the cylinder of the armature 1, and a sub magnet 2' is provided oppositely to the cup bottom of the armature 1. When a brush 6 is energized, the armature is rotated by the combination of a torque generated by the magnet 2 disposed radially with the coil 1a of the armature 1 and a torque generated at the magnet 2' disposed in a thrust direction to the coil 1a.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、サーボモータ、電装用モータ等に用いられる
コアレス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 coreless motor used for servo motors, motors for electrical equipment, and the like.

従来の技術 近年、軽薄短小の時代であり、モータに於いてもそれら
や高効率が要求されている。BACKGROUND OF THE INVENTION In recent years, we have entered an era of light, thin, short, and small products, and motors are also required to be highly efficient.

以下図面を参照しながら上述した従来のコアレスモータ
の一例について説明する。An example of the conventional coreless motor mentioned above will be described below with reference to the drawings.

第３図は従来のコアレスモータの電機子コイル形状を示
す斜視図、第４図は当該電機子コイルを具備したモータ
の断面図である。第３図及び第４図に於いて、１はカッ
プ状の電機子で、円筒部に位置する有効コイル部１ａと
カップ底部に位置し無効部となるコイルエンド部１ｂを
備えている。２は電機子１の円筒部に、対向して設けた
永久磁石、３及び３′は磁路をなすブラケットである。FIG. 3 is a perspective view showing the shape of an armature coil of a conventional coreless motor, and FIG. 4 is a sectional view of a motor equipped with the armature coil. In FIGS. 3 and 4, reference numeral 1 denotes a cup-shaped armature, which includes an effective coil portion 1a located in a cylindrical portion and a coil end portion 1b located at the bottom of the cup and serving as an ineffective portion. 2 is a permanent magnet provided opposite to the cylindrical portion of the armature 1, and 3 and 3' are brackets forming a magnetic path.

４はブラケット、５は整流子、６は整流子と摺動するブ
ラシ、７はブラシ６に適切な荷重を与えるブラシバネで
ある。８及び９は電機子を支持する軸受、１０は軸であ
る。4 is a bracket, 5 is a commutator, 6 is a brush that slides on the commutator, and 7 is a brush spring that applies an appropriate load to the brush 6. 8 and 9 are bearings that support the armature, and 10 is a shaft.

以上の構成において、ブラシ６に通電すると、電機子１
の有効コイル部１２とラジアル方向に配置された磁石２
によりトルクが発生し、電機子が回転する。In the above configuration, when the brush 6 is energized, the armature 1
effective coil portion 12 and magnets 2 arranged in the radial direction.
Torque is generated and the armature rotates.

発明が解決しようとする問題点 しかしながら上記の様な構成では、電機子１のコイルエ
ンド部１ｂはトルクを発生しない無効コイル部となり、
当該部の占める割合が多いほど効率が低下し、高効率化
及び高出力化への１つの大きな弊害となっている。Problems to be Solved by the Invention However, in the above configuration, the coil end portion 1b of the armature 1 becomes an ineffective coil portion that does not generate torque.
The higher the proportion occupied by this part, the lower the efficiency becomes, which is one of the major drawbacks to achieving high efficiency and high output.

本発明は、この様な従来の問題点を解消するもので電機
子コイルの形状の変更と副磁石の追加によってコイルエ
ンド部を有効活用することにより新規有効コイル部での
トルクを追加し、高効率ノ１イパワーのコアレスモータ
を提供するものである。The present invention solves these conventional problems by effectively utilizing the coil end by changing the shape of the armature coil and adding a sub-magnet, thereby adding torque in the new effective coil part and increasing the torque. This provides a coreless motor with greater efficiency and greater power.

問題点を解決するための手段 本発明のコアレスモータは、電機子のコイルエンド形状
を変更し、当該コイルエンド部とスラスト方向に対向し
て新たに副磁石を配置したものである。Means for Solving the Problems In the coreless motor of the present invention, the shape of the coil end of the armature is changed, and a sub-magnet is newly disposed opposite the coil end portion in the thrust direction.

作用 本発明のコアレスモータは、電機子コイルエンド部と対
向する位置にスラスト方向に磁界を得る事のできる副磁
石を配置し、当該磁石により発生するトルクとラジアル
方向に配置した主磁石により発生するトルクの合成によ
り電機子が回転する。Function The coreless motor of the present invention has a sub-magnet that can obtain a magnetic field in the thrust direction at a position facing the armature coil end, and the torque generated by the magnet is generated by the main magnet arranged in the radial direction. The armature rotates due to the combination of torques.

実施例 以下本発明の一実施例のコアレスモータを第１図、第２
図を参照して説明する。Embodiment Below, a coreless motor according to an embodiment of the present invention is shown in FIGS. 1 and 2.
This will be explained with reference to the figures.

第１図及び第２図に於いて、１はカップ状の電機子で、
各コイルはカップ底部に放射状に配列され外周円筒部に
つながる形状に形成され、円筒部及びカップ底部には有
効コイル部１．．１−’が設けられている。２は電機子
１の円筒部に対向して設けた主磁石、２′は電機子１の
カップ底部に対向して設けた副磁石、３及び４は磁路を
なすブラケット（ヨーク）である。５は整流子、６は整
流子と摺動するブラシ、７はブラシに適切な荷重を与え
るブラシバネである。８及び９は電機子１を支持する軸
受であり、１０は軸である。In Figures 1 and 2, 1 is a cup-shaped armature,
Each coil is arranged radially at the bottom of the cup and connected to the outer cylindrical part, and the cylindrical part and the bottom of the cup have an effective coil part 1. ．． 1-' is provided. 2 is a main magnet provided facing the cylindrical portion of the armature 1, 2' is a sub magnet provided facing the cup bottom of the armature 1, and 3 and 4 are brackets (yokes) forming a magnetic path. 5 is a commutator, 6 is a brush that slides on the commutator, and 7 is a brush spring that applies an appropriate load to the brush. 8 and 9 are bearings that support the armature 1, and 10 is a shaft.

以上の様に構成されたコアレスモータについて、以下第
１図及び第２図を用いてその動作を説明する。ブラシ６
に通電すると、電機子１の有効コイル部１ａとラジアル
方向に配置された主磁石２により発生するトルクと、更
に有効コイル１ａ’とスラスト方向に配置された副磁石
２′により発生するトルクの合成により電機子１が回転
する。The operation of the coreless motor configured as described above will be described below with reference to FIGS. 1 and 2. brush 6
When energized, the torque generated by the effective coil portion 1a of the armature 1 and the main magnet 2 arranged in the radial direction, and the torque generated by the effective coil 1a' and the sub magnet 2' arranged in the thrust direction are combined. The armature 1 rotates.

発明の効果 以上の様に本発明は、従来のコアレスモータに於いてト
ルクの発生が不可能であったコイルエンド部いわゆる無
効コイルに対向して副磁石を配置する事により、かって
の無効コイル部を有効活用し、当該部に於いてもトルク
を発生させ、高効率ハイパワーのコアレスモータを提供
するものである。Effects of the Invention As described above, the present invention has the effect of arranging a sub-magnet opposite the so-called invalid coil at the coil end where it was impossible to generate torque in the conventional coreless motor. By making effective use of this, torque is generated in this part as well, providing a highly efficient and high power coreless motor.

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

第１図は本発明の一実施例におけるコアレスモータの断
面図、第２図は同コアレスモータにおける電機子コイル
形状を示す斜視図、第３図は従来のコアレスモータの電
機子コイル形状を示す斜視図、第４図は従来例のコアレ
スモータの断面図である。 １・・・・・・電機子、１．．１−’・・・・・・有効
コイル部、２・・・・・・主磁石、２′・・・・・・副
磁石、３，４・・・・・・ブラケット。 代理人の氏名　弁理士　中尾敏男　ほか１名／−−一覧
機子 第２図 ゛＼−ノ′Fig. 1 is a sectional view of a coreless motor according to an embodiment of the present invention, Fig. 2 is a perspective view showing the armature coil shape of the coreless motor, and Fig. 3 is a perspective view showing the armature coil shape of a conventional coreless motor. 4 are cross-sectional views of a conventional coreless motor. 1... Armature, 1. ．． 1-'... Effective coil part, 2... Main magnet, 2'... Sub-magnet, 3, 4... Bracket. Name of agent: Patent attorney Toshio Nakao and 1 other person

Claims (1)

【特許請求の範囲】[Claims] 複数個のコイルを樹脂成形してなるカップ状の電機子の
各コイルを、前記電機子のカップ底部に放射状に配列さ
れ外周円筒部につながる形状に形成し、前記電機子のカ
ップ底部に対向して一方に副磁石及びヨークを設けると
共に他方にヨークを設け、かつ前記電機子の円筒部に対
向して一方に主磁石及びヨークを設けると共に他方にヨ
ークを設けてなるコアレスモータ。Each coil of a cup-shaped armature formed by resin molding a plurality of coils is arranged radially on the cup bottom of the armature and connected to an outer peripheral cylindrical part, and is arranged opposite to the cup bottom of the armature. A coreless motor comprising a sub magnet and a yoke on one side and a yoke on the other side, a main magnet and a yoke on one side facing the cylindrical part of the armature, and a yoke on the other side.
JP9005485A 1985-04-26 1985-04-26 Coreless motor Pending JPS61251460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9005485A JPS61251460A (en) 1985-04-26 1985-04-26 Coreless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9005485A JPS61251460A (en) 1985-04-26 1985-04-26 Coreless motor

Publications (1)

Publication Number Publication Date
JPS61251460A true JPS61251460A (en) 1986-11-08

Family

ID=13987874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9005485A Pending JPS61251460A (en) 1985-04-26 1985-04-26 Coreless motor

Country Status (1)

Country Link
JP (1) JPS61251460A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1147593A1 (en) * 1998-12-22 2001-10-24 Rush, David H. Machine with cup-shaped armature and air gap

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1147593A1 (en) * 1998-12-22 2001-10-24 Rush, David H. Machine with cup-shaped armature and air gap
EP1147593A4 (en) * 1998-12-22 2005-08-17 Rush Holdings Inc Machine with cup-shaped armature and air gap

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