JP2009247111A - Limited angle motor - Google Patents

Limited angle motor Download PDF

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Publication number
JP2009247111A
JP2009247111A JP2008090626A JP2008090626A JP2009247111A JP 2009247111 A JP2009247111 A JP 2009247111A JP 2008090626 A JP2008090626 A JP 2008090626A JP 2008090626 A JP2008090626 A JP 2008090626A JP 2009247111 A JP2009247111 A JP 2009247111A
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Japan
Prior art keywords
coil
magnetic pole
base
stator
angle motor
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JP2008090626A
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Japanese (ja)
Inventor
Kunihiko Iijima
邦彦 飯島
Yasuhiro Kataoka
康浩 片岡
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Tamagawa Seiki Co Ltd
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Tamagawa Seiki Co Ltd
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Priority to JP2008090626A priority Critical patent/JP2009247111A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To improve a conventional limit angle motor having a low effective magnetic flux which interlinks a coil and a small force density per unit volume, because the motor is of a coreless structure, constructed by merely bonding the coil to an inner surface of a stator base portion. <P>SOLUTION: The limited angle motor is provided with a first magnetic pole 12 projecting from a base portion end face 11a and a pair of second magnetic poles 13 on the stator base portion 11 and is configured so that the coil 15 is disposed at a slot between the first magnetic pole 12 and the respective magnetic poles 13. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、有限角モータに関し、特に、固定子基部に第１及び第２磁極を設けることで、コイルを鎖交する有効磁束を高めることができ、単位体積あたりの力密度を大きくできるようにするための新規な改良に関するものである。   The present invention relates to a finite angle motor, and in particular, by providing the first and second magnetic poles at the stator base, the effective magnetic flux interlinking the coils can be increased, and the force density per unit volume can be increased. The present invention relates to a new improvement.

従来用いられていたこの種の有限角モータとしては、例えば特許文献１等に示されている有限角モータが用いられている。図４は、従来の有限角モータを示す断面図である。
図において、有限角モータは、固定子１０と可動子２０とにより構成されている。前記固定子１０は、固定子基部１１とコイル１５から構成されている。前記固定子基部１１の内面側には１／４円筒形状曲面１１ｃが形成されており、この１／４円筒形状曲面１１ｃには予め環状に成形された前記コイル１５が貼り付けられている。
前記可動子２０は、可動子基部２１と永久磁石２２とにより構成されている。前記可動子基部２１は駆動軸２４を中心に回動可能に設けられており、永久磁石２２は前記可動子基部２１の先端に取り付けられている。
前記コイル１５に通電されると、前記コイル１５と前記永久磁石２２との間に反発力が発生する。すなわち、前記コイル１５に流される電流の向きに応じて、前記駆動軸２４を中心に前記可動子基部２１が所定の有限角で時計方向又は反時計方向に駆動される。 As this type of finite-angle motor conventionally used, for example, a finite-angle motor shown in Patent Document 1 or the like is used. FIG. 4 is a cross-sectional view showing a conventional finite angle motor.
In the figure, the finite angle motor is composed of a stator 10 and a mover 20. The stator 10 includes a stator base 11 and a coil 15. A quarter cylindrical curved surface 11c is formed on the inner surface side of the stator base 11, and the coil 15 previously formed into an annular shape is attached to the quarter cylindrical curved surface 11c.
The mover 20 includes a mover base 21 and a permanent magnet 22. The mover base 21 is provided so as to be rotatable about a drive shaft 24, and the permanent magnet 22 is attached to the tip of the mover base 21.
When the coil 15 is energized, a repulsive force is generated between the coil 15 and the permanent magnet 22. That is, according to the direction of the current flowing through the coil 15, the movable element base 21 is driven clockwise or counterclockwise at a predetermined finite angle around the drive shaft 24.

特開２００２−３３５６６３号公報JP 2002-335663 A

上記のような従来の有限角モータでは、コイル１５が固定子基部１１の内面（１／４円筒形状曲面１１ｃ）に貼り付けられただけのコアレス構造とされているので、コイル１５を鎖交する有効磁束が低く、単位体積あたりの力密度が小さくなっている。   In the conventional finite angle motor as described above, the coil 15 has a coreless structure in which the coil 15 is simply attached to the inner surface (¼ cylindrical curved surface 11 c) of the stator base 11. The effective magnetic flux is low and the force density per unit volume is small.

本発明は、上記のような課題を解決するためになされたものであり、その目的は、コイルを鎖交する有効磁束を高めることができ、単位体積あたりの力密度を大きくできる有限角モータを提供することである。   The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a finite angle motor that can increase the effective magnetic flux interlinking coils and increase the force density per unit volume. Is to provide.

本発明に係る有限角モータは、固定子基部の基部端面の中央から内方へ突出された第１磁極と、前記基部端面から突出されるとともに前記第１磁極の両側に配置された一対の第２磁極と、前記第１磁極と前記各第２磁極との間のスロットに配設されたコイルと、前記第１磁極及び前記各第２磁極の第１及び第２先端部の端面に形成された円弧状の固定子側曲面と、前記固定子側曲面に対向し、駆動軸を中心に回動可能な可動子基部と、前記可動子基部の内面に設けられた永久磁石とを備え、前記コイルと前記永久磁石との間に発生する反発力によって、前記可動子基部が前記駆動軸を中心に所定の有限角で駆動される構成である。   A finite angle motor according to the present invention includes a first magnetic pole projecting inward from the center of the base end face of the stator base, and a pair of first magnetic poles protruding from the base end face and disposed on both sides of the first magnetic pole. Two magnetic poles, a coil disposed in a slot between the first magnetic pole and each second magnetic pole, and end faces of first and second tip portions of the first magnetic pole and each second magnetic pole. An arc-shaped stator-side curved surface, a mover base facing the stator-side curved surface and rotatable about a drive shaft, and a permanent magnet provided on an inner surface of the mover base, The movable element base is driven at a predetermined finite angle about the drive shaft by a repulsive force generated between a coil and the permanent magnet.

本発明の有限角モータによれば、コイルが第１磁極と第２磁極との間のスロットに配設されているので、コイルを鎖交する有効磁束を高めることができ、単位体積あたりの力密度を大きくできる。   According to the finite angle motor of the present invention, since the coil is disposed in the slot between the first magnetic pole and the second magnetic pole, the effective magnetic flux interlinking the coil can be increased, and the force per unit volume can be increased. The density can be increased.

以下、本発明を実施するための最良の形態について、図面を参照して説明する。
実施の形態１．
図１は本発明の実施の形態１による有限角モータを示す正面図であり、図２は図１の有限角モータを示す側面図であり、図３は図２の有限角モータを示す上面図である。なお、従来の有限角モータと同一又は同等部分については同一の符号を用いて説明する。
図において、有限角モータは、固定子１０と可動子２０とにより構成されている。前記固定子１０には、板状の固定子基部１１が設けられており、この固定子基部１１の基部端面１１ａからは第１磁極１２と一対の第２磁極１３とが内方へ突出されている。前記第１磁極１２は前記固定子基部１１の幅方向Ａに沿う中央に配置されており、前記各第２磁極１３は前記第１磁極１２の両側に配置されている。具体的には、前記各第２磁極１３は、前記固定子基部１１の両側の側端部１１ｂに配設されている。前記第１磁極１２と前記各第２磁極１３との間にはスロットが設けられており、このスロットにはコイル１５が配設されている。すなわち、図３に示すように、コイル１５の中心孔１５ａに前記第１磁極１２が挿通されており、コイル１５の両側に前記各第２磁極１３が接している。なお、この実施の形態では、前記コイル１５は例えば自動巻線機等により前記第１磁極１２に巻回されたものである。 The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a front view showing a finite angle motor according to Embodiment 1 of the present invention, FIG. 2 is a side view showing the finite angle motor of FIG. 1, and FIG. 3 is a top view showing the finite angle motor of FIG. It is. The same or equivalent parts as those of the conventional finite angle motor will be described using the same reference numerals.
In the figure, the finite angle motor is composed of a stator 10 and a mover 20. The stator 10 is provided with a plate-like stator base 11, and a first magnetic pole 12 and a pair of second magnetic poles 13 project inward from a base end face 11 a of the stator base 11. Yes. The first magnetic pole 12 is disposed at the center along the width direction A of the stator base 11, and the second magnetic poles 13 are disposed on both sides of the first magnetic pole 12. Specifically, each of the second magnetic poles 13 is disposed on the side end portions 11 b on both sides of the stator base portion 11. A slot is provided between the first magnetic pole 12 and each of the second magnetic poles 13, and a coil 15 is disposed in the slot. That is, as shown in FIG. 3, the first magnetic pole 12 is inserted into the center hole 15 a of the coil 15, and the second magnetic poles 13 are in contact with both sides of the coil 15. In this embodiment, the coil 15 is wound around the first magnetic pole 12 by, for example, an automatic winding machine.

図１に戻り、前記第１磁極１２及び前記各第２磁極１３は第１及び第２先端部１６，１７を有している。前記第１先端部１６には、この第１先端部１６の両側面から前記各第２磁極１３に向かって突出する第１縁部１６ａが設けられており、前記各第２先端部１７には、各第２先端部１７の内側面から前記第１磁極１２に向かって突出する第２縁部１７ａがそれぞれ設けられている。第１及び第２先端部１６，１７の端面には、円弧状の固定子側曲面１８が形成されている。なお、前記各第２先端部１７の第２先端部１７の外側面は平面状に形成されている。   Returning to FIG. 1, the first magnetic pole 12 and the second magnetic poles 13 have first and second tip portions 16 and 17. The first tip portion 16 is provided with a first edge portion 16 a that protrudes from both side surfaces of the first tip portion 16 toward the second magnetic poles 13. The second edge portions 17a projecting from the inner surface of each second tip portion 17 toward the first magnetic pole 12 are provided. Arc-shaped stator side curved surfaces 18 are formed on the end surfaces of the first and second tip portions 16 and 17. The outer surface of the second tip 17 of each second tip 17 is formed in a flat shape.

前記可動子２０は、前記固定子１０に対向して配置されており、扇状の可動子基部２１と永久磁石２２とにより構成されている。前記可動子基部２１は、前記固定子側曲面１８に対向する円弧状の可動子側曲面２３を有しており、駆動軸２４を中心に回動可能に設けられている。前記永久磁石２２は、可動子基部２１の内面すなわち可動子側曲面２３に貼り付けられており、具体的には、互いに異なる極が前記固定子側曲面１８に対向するように配置された一対の磁石片により構成されている。   The mover 20 is disposed so as to face the stator 10, and includes a fan-shaped mover base 21 and a permanent magnet 22. The mover base portion 21 has an arcuate mover side curved surface 23 facing the stator side curved surface 18, and is provided so as to be rotatable about a drive shaft 24. The permanent magnet 22 is affixed to the inner surface of the mover base 21, that is, the mover-side curved surface 23, and specifically, a pair of poles arranged so that different poles face the stator-side curved surface 18. It is comprised by the magnet piece.

前記コイル１５に通電されると、前記コイル１５と前記永久磁石２２との間に反発力が発生し、この反発力によって、前記可動子基部２１が前記駆動軸２４を中心に駆動される。すなわち、前記コイル１５に流される電流の向きに応じて、前記可動子基部２１が所定の有限角で時計方向又は反時計方向に駆動される。   When the coil 15 is energized, a repulsive force is generated between the coil 15 and the permanent magnet 22, and the movable element base 21 is driven around the drive shaft 24 by the repulsive force. That is, the movable element base 21 is driven clockwise or counterclockwise at a predetermined finite angle according to the direction of the current flowing through the coil 15.

本発明の実施の形態１による有限角モータを示す正面図である。It is a front view which shows the finite angle motor by Embodiment 1 of this invention. 図１の有限角モータを示す側面図である。It is a side view which shows the finite angle motor of FIG. 図２の有限角モータを示す上面図である。It is a top view which shows the finite angle motor of FIG. 従来の有限角モータを示す断面図である。It is sectional drawing which shows the conventional finite angle motor.

符号の説明Explanation of symbols

１１ 固定子基部
１１ａ 基部端面
１２，１３ 第１及び第２磁極
１５ コイル
１６，１７ 第１及び第２先端部
１８ 固定子側曲面
２１ 可動子基部
２２ 永久磁石
２３ 可動子側曲面
２４ 駆動軸 DESCRIPTION OF SYMBOLS 11 Stator base part 11a Base end surface 12, 13 1st and 2nd magnetic pole 15 Coil 16,17 1st and 2nd front-end | tip part 18 Stator side curved surface 21 Movable part base 22 Permanent magnet 23 Movable part side curved surface 24 Drive shaft

Claims (1)

固定子基部（１１）の基部端面（１１ａ）の中央から内方へ突出された第１磁極（１２）と、
前記基部端面（１１ａ）から突出されるとともに前記第１磁極（１２）の両側に配置された一対の第２磁極（１３）と、
前記第１磁極（１２）と前記各第２磁極（１３）との間のスロットに配設されたコイル（１５）と、
前記第１磁極（１２）及び前記各第２磁極（１３）の第１及び第２先端部（１６，１７）の端面に形成された円弧状の固定子側曲面（１８）と、
前記固定子側曲面（１８）に対向し、駆動軸（２４）を中心に回動可能な可動子基部（２１）と、
前記可動子基部（２１）の内面に設けられた永久磁石（２２）と
を備え、
前記コイル（１５）と前記永久磁石（２２）との間に発生する反発力によって、前記可動子基部（２１）が前記駆動軸（２４）を中心に所定の有限角で駆動されることを特徴とする有限角モータ。 A first magnetic pole (12) protruding inward from the center of the base end face (11a) of the stator base (11);
A pair of second magnetic poles (13) protruding from the base end face (11a) and disposed on both sides of the first magnetic pole (12);
A coil (15) disposed in a slot between the first magnetic pole (12) and each second magnetic pole (13);
An arcuate stator-side curved surface (18) formed on end surfaces of the first and second tip portions (16, 17) of the first magnetic pole (12) and the second magnetic poles (13);
A mover base (21) facing the stator-side curved surface (18) and rotatable about a drive shaft (24);
A permanent magnet (22) provided on the inner surface of the mover base (21),
The movable element base (21) is driven at a predetermined finite angle about the drive shaft (24) by a repulsive force generated between the coil (15) and the permanent magnet (22). A finite angle motor.
JP2008090626A 2008-03-31 2008-03-31 Limited angle motor Pending JP2009247111A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014022703A (en) * 2012-07-24 2014-02-03 Takano Co Ltd Rotary solenoid
JP2019509708A (en) * 2016-02-19 2019-04-04 胡建坤 Electric grinder
JP2019512198A (en) * 2016-02-19 2019-05-09 胡建坤 Swing motor and electric clipper
JP2020156553A (en) * 2019-03-25 2020-10-01 多摩川精機株式会社 Stator mounting structure of finite angle motor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260453A (en) * 1988-08-25 1990-02-28 Nippon Denso Co Ltd Rotary solenoid
JPH0662773U (en) * 1993-01-29 1994-09-02 株式会社トーキン Pump drive actuator
JP2000217328A (en) * 1999-01-25 2000-08-04 Mitsubishi Materials Corp Oscillating motor
JP2000240474A (en) * 1999-02-24 2000-09-05 Mikuni Corp Throttle valve control device for internal combustion engine
JP2001327142A (en) * 2000-05-11 2001-11-22 Mikuni Corp Electromagnetic actuator
JP2001352742A (en) * 2000-06-08 2001-12-21 Sony Corp Oscillating type vibration actuator and portable electronic equipment
JP2002335663A (en) * 2001-05-09 2002-11-22 Yaskawa Electric Corp Swing action type motor
JP2006037830A (en) * 2004-07-27 2006-02-09 Mikuni Corp Cam device, multi-cylinder engine and changing method of valve displacement stroke and displacement timing in cam device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260453A (en) * 1988-08-25 1990-02-28 Nippon Denso Co Ltd Rotary solenoid
JPH0662773U (en) * 1993-01-29 1994-09-02 株式会社トーキン Pump drive actuator
JP2000217328A (en) * 1999-01-25 2000-08-04 Mitsubishi Materials Corp Oscillating motor
JP2000240474A (en) * 1999-02-24 2000-09-05 Mikuni Corp Throttle valve control device for internal combustion engine
JP2001327142A (en) * 2000-05-11 2001-11-22 Mikuni Corp Electromagnetic actuator
JP2001352742A (en) * 2000-06-08 2001-12-21 Sony Corp Oscillating type vibration actuator and portable electronic equipment
JP2002335663A (en) * 2001-05-09 2002-11-22 Yaskawa Electric Corp Swing action type motor
JP2006037830A (en) * 2004-07-27 2006-02-09 Mikuni Corp Cam device, multi-cylinder engine and changing method of valve displacement stroke and displacement timing in cam device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014022703A (en) * 2012-07-24 2014-02-03 Takano Co Ltd Rotary solenoid
JP2019509708A (en) * 2016-02-19 2019-04-04 胡建坤 Electric grinder
JP2019512198A (en) * 2016-02-19 2019-05-09 胡建坤 Swing motor and electric clipper
JP2020156553A (en) * 2019-03-25 2020-10-01 多摩川精機株式会社 Stator mounting structure of finite angle motor

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