JPH05316701A - Reluctance motor - Google Patents

Reluctance motor

Info

Publication number
JPH05316701A
JPH05316701A JP12070492A JP12070492A JPH05316701A JP H05316701 A JPH05316701 A JP H05316701A JP 12070492 A JP12070492 A JP 12070492A JP 12070492 A JP12070492 A JP 12070492A JP H05316701 A JPH05316701 A JP H05316701A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
rotor
stator
portion
reluctance motor
inner surface
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
JP12070492A
Other languages
Japanese (ja)
Inventor
Masayuki Morimoto
Eiji Noda
雅之 森本
英司 野田
Original Assignee
Mitsubishi Heavy Ind Ltd
三菱重工業株式会社
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

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2205/00Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/12Machines characterised by means for reducing windage losses or windage noise

Abstract

PURPOSE: To enable the rotor of a reluctance motor to smoothly rotate so as to reduce the wind loss and whirring noise and to hardly cause an unbalanced rotation.
CONSTITUTION: A reluctance motor comprises a cylindrical stator 11 having a plurality of stator windings in the inner surface thereof and a rotor which is inserted in this stator 11 and which has salient poles facing the inner surface of the stator with a narrow gap and recessed poles facing the inner surface of the stator with a wide gap, wherein a non-magnetic material plate 13 is inserted between magnetic material plates 14 which constitute the rotor, and wherein the surface of the rotor extending from the salient poles to the recessed poles is smoothly and gently changed in slope.
COPYRIGHT: (C)1993,JPO&Japio

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、特に回転子の構造に特徴を有するリラクタンスモータに関する。 The present invention relates to a reluctance motor having features particularly to the structure of the rotor.

【0002】 [0002]

【従来の技術】従来の軸方向積層形リラクタンスモータの4極の回転子の構造を図2に示す。 BACKGROUND OF THE INVENTION structure of a rotor of a four-pole of the conventional axial Laminated reluctance motor shown in FIG. 同図で21は軸、22 21 the shaft in this figure, 22
は軸21と平行に積層された積層体(鉄心)、23は積層鉄心22を固定するボルトである。 The laminates stacked parallel to the axis 21 (core), 23 is a bolt for fixing the laminated core 22.

【0003】この回転子は突極構造になっており、突極部と凹極部の磁気抵抗の違いを利用して回転力を得ている。 [0003] The rotor is turned salient pole structure, to obtain a rotational force by utilizing a difference in magnetic resistance of the salient pole portion and 凹極 portion. この回転力を大きくするべく従来のリラクタンスモータの回転子は、図2に示す如く凹極部の半径方向の磁気抵抗が大きくなり、突極部の半径方向の磁気抵抗が小さくなるように、軸21に平行にケイ素鋼板を積層して形成している。 The conventional reluctance motor rotor to the rotational force is increased, the magnetic resistance in the radial direction of the 凹極 portion as shown in FIG. 2 increases, so that the magnetic resistance in the radial direction of the salient pole portion is reduced, the shaft It is formed by laminating silicon steel plates in parallel 21. そして、積層板相互及び積層された鉄心22 The laminate other and laminated iron core 22
と軸21とを固定するためにボルト23が用いられている。 Bolts 23 are used to secure the shaft 21 and.

【0004】このようなリラクタンスモータにおいては、ケイ素鋼板とアルミ板などの非磁性体板を何枚かおきに交互に積層して凹極部間(q軸)のインダクタンスLqを低下させ、トルクの増加を図っている。 [0004] In such a reluctance motor, reducing the inductance Lq of the non-magnetic plate, such as a silicon steel plate and the aluminum plate every several sheets are stacked alternately between 凹極 section (q-axis), the torque We are working to increase.

【0005】 [0005]

【発明が解決しようとする課題】上記のような構造の回転子を有するリラクタンスモータでは、回転子の断面が大きな凹凸形状となっており、この回転子が回転するために、回転にアンバランスが生じ易く滑らかな回転が得にくい、空気抵抗による風損が大きい、風切音がする、 The reluctance motor having a rotor of the above-described structure [0005] have become the cross section of the rotor and the large irregularities, for the rotor rotates, unbalance in rotation easy smooth rotation is difficult to obtain occurs, a large windage due to air resistance, which is wind noise,
等の問題点を有していた。 It has a problem of equal.

【0006】本発明は上記のような実情に鑑みてなされたもので、その目的とするところは、回転にアンバランスを生じることなく滑らかに回転し、また、空気抵抗による風損、風切音を充分低減することが可能な回転子を有するリラクタンスモータを提供することにある。 [0006] The present invention has been made in view of the circumstances described above, it is an object of smoothly rotated without causing unbalance in the rotation, also, windage loss due to air resistance, wind noise to provide a reluctance motor having a rotor capable of sufficiently reducing.

【0007】 [0007]

【課題を解決するための手段及び作用】すなわち本発明は、筒状をなし内面に複数の固定子巻線を有する固定子と、この固定子内に挿入され固定子内面との空隙が狭い突極部と空隙の広い凹極部とを有する回転子とを有するリラクタンスモータであって、上記回転子を形成する磁性材料板の間に非磁性材料板を介装させると共に、上記回転子の突極部から凹極部に至る該回転子の表面をなだらかに変化させるようにしたもので、突極部間(d軸) Means and operation for solving the problems] The present invention includes a stator and, butt gap is narrow between the inserted stator inner surface within the stator having a plurality of stator windings on the inner surface a tubular shape a reluctance motor having a rotor and a wide 凹極 portion of electrode portion with a gap, causes interposed nonmagnetic material plate magnetic material plates forming the rotor, salient pole portion of the rotor the surface of the rotor reaching the 凹極 portion from which was so as to gradually change between the salient pole portion (d-axis)
のインダクタンスLdが増加することでトルクが増加し、また回転子の形状が円筒に近くなるので風損を低下し、回転にアンバランスが生じにくく、風切音を低減させることができる。 Inductance Ld torque is increased by increasing, also reduced windage losses because the shape of the rotor is close to the cylinder, imbalance hardly occurs in the rotation, it is possible to reduce wind noise.

【0008】 [0008]

【実施例】以下図面を参照して本発明の一実施例を説明する。 EXAMPLES Referring to the drawings illustrating an embodiment of the present invention.

【0009】図1はその一部断面形状を示すもので、ここでは2極の回転子を例にとって説明する。 [0009] Figure 1 shows a part cross-sectional shape, will be described here two poles of the rotor as an example. 同図で11は固定子、12は回転子の回転軸、13は例えばアルミニウムによる非磁性体板、14はケイ素鋼板を積層した磁性積層体であり、回転軸12を中心として凹極部方向と積層方向とが一致するように非磁性体板13と磁性積層体14とを交互に積層して回転子を形成する。 FIG 11 is a stator, 12 a rotating shaft of the rotor, non-magnetic plate is of aluminum for example, 13, 14 is a magnetic multilayer structure formed by laminating silicon steel plates, and 凹極 portion direction about the rotary shaft 12 as a lamination direction coincides by laminating a non-magnetic plate 13 and the magnetic stack 14 alternately to form a rotor.

【0010】この回転子は、図示する如く固定子11内面との空隙が狭い突極部から空隙の広い凹極部に至る表面がなだらかに変化させるようにしたもので、回転子全体として略円筒形状をなし、突極部の固定子11内面との間隔が最も近い部分の空隙15と凹極部の固定子11内面との間隔が最も遠い部分の空隙16との差も非常に小さくなっている。 [0010] The rotor is given a surface leading to wide 凹極 portion void of voids narrow salient pole portion of the stator 11 inner surface as shown in the drawing was set to be changed gently, substantially cylindrical as a whole a rotor a shape, also the difference between the stator 11 gap spacing is closest portion between the inner surface 15 and the 凹極 portion of the stator 11 gap spacing farthest portion of the inner surface 16 of the salient pole portion is extremely small there.

【0011】このような回転子の構造によれば、突極部間(d軸)を励磁した際は磁力線が非磁性体板13の板面に沿って進むため、単位面積当たりの磁気抵抗は従来のものと同様であり、且つ従来の突極部より磁極面積が増加するためにさらに磁気抵抗が増加し、結果として突極部間のインダクタンスLdが大きくなる。 According to the structure of such a rotor, since when the excitation between the salient pole portion (d-axis) of the magnetic field lines travel along the plate surface of the non-magnetic plate 13, the magnetic resistance per unit area It is the same as those of the prior art, and the conventional salient pole portion further reluctance for the magnetic pole area increases than increases, the inductance Ld between the salient pole portions is increased as a result.

【0012】この反面、凹極部間(q軸)を励磁した際には磁力線が非磁性体板13と直交するため、凹極部の空隙長16が従来のものよりも大幅に短いにも拘らず磁気抵抗が大きく、凹極部間のインダクタンスLqは増加しない。 [0012] The other hand, since upon excitation between 凹極 part (q-axis) is orthogonal field lines and the non-magnetic plate 13, gap length 16 of 凹極 portion also much shorter than the conventional despite reluctance is large, the inductance Lq between 凹極 portion does not increase.

【0013】したがって、突極部の空隙15と凹極部の空隙16との差が小さく、回転子の表面をなだらかに変化させて回転に伴う風損、風切音を低減させ、回転のアンバランスを生じにくくさせながらも、突極部間のインダクタンスLdと凹極部間のインダクタンスLqとの差が大きいためにトルクを増加させることができる。 [0013] Thus, small differences in the void 16 of the gap 15 and 凹極 portion of the salient pole portion, windage loss associated with rotation gradually change the surface of the rotor, to reduce the wind noise, Ann rotation even while unlikely to occur balance, it is possible to increase the torque for the difference between the inductance Lq between inductances Ld and 凹極 portion between the salient pole portion is larger.

【0014】 [0014]

【発明の効果】以上に述べた如く本発明によれば、筒状をなし内面に複数の固定子巻線を有する固定子と、この固定子内に挿入され固定子内面との空隙が狭い突極部と空隙の広い凹極部とを有する回転子とを有するリラクタンスモータであって、上記回転子を形成する磁性材料板の間に非磁性材料板を介装させると共に、上記回転子の突極部から凹極部に至る該回転子の表面をなだらかに変化させるようにしたもので、突極部間(d軸)のインダクタンスLdが増加することでトルクが増加し、また回転子の形状が円筒に近くなるので風損を低下し、回転にアンバランスが生じにくく滑らかに回転し、風切音を低減させることが可能な回転子を有するリラクタンスモータを提供することができる。 According to as discussed above the present invention, the stator and, butt gap is narrow between the inserted stator inner surface within the stator having a plurality of stator windings on the inner surface a tubular shape a reluctance motor having a rotor and a wide 凹極 portion of electrode portion with a gap, causes interposed nonmagnetic material plate magnetic material plates forming the rotor, salient pole portion of the rotor the surface of the rotor reaching the 凹極 portion from which was so as to gradually change the inductance Ld torque is increased by increasing, also the shape of the rotor cylinder between the salient pole portion (d-axis) becomes closer since a reduced windage losses, an imbalance is smoothly rotated unlikely to occur in the rotation, it is possible to provide a reluctance motor having a rotor capable of reducing the wind noise.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施例に係るリラクタンスモータの一部断面構造を示す図。 It shows a part cross-sectional structure of a reluctance motor according to an embodiment of the present invention; FIG.

【図2】従来のリラクタンスモータの回転子の構造を示す斜視図。 Figure 2 is a perspective view showing a structure of a rotor of a conventional reluctance motor.

【符号の説明】 DESCRIPTION OF SYMBOLS

11…固定子、12,21…回転軸、13…非磁性体板、14…磁性積層体、15,16…空隙、22…積層鉄心、23…ボルト。 11 ... stator, 12, 21 ... rotary shaft, 13 ... non-magnetic plate, 14 ... magnetic multilayer structure, 15, 16 ... gap, 22 ... laminated core, 23 ... bolt.

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 筒状をなし内面に複数の固定子巻線を有する固定子と、この固定子内に挿入され固定子内面との空隙が狭い突極部と空隙の広い凹極部とを有する回転子とを有するリラクタンスモータであって、 上記回転子を形成する磁性材料板の間に非磁性材料板を介装させると共に、上記回転子の突極部から凹極部に至る該回転子の表面をなだらかに変化させたことを特徴とするリラクタンスモータ。 And 1. A stator having a plurality of stator windings on the inner surface a tubular shape, and a wide 凹極 portion void narrow salient pole portion and the gap between the inserted stator inner surface within the stator a reluctance motor having a rotor having, dissipate interposed nonmagnetic material plate magnetic material plates forming the rotor, the surface of the rotor reaching the 凹極 portion from the salient pole portion of the rotor reluctance motor, characterized in that gradually changing the.
JP12070492A 1992-05-13 1992-05-13 Reluctance motor Pending JPH05316701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12070492A JPH05316701A (en) 1992-05-13 1992-05-13 Reluctance motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12070492A JPH05316701A (en) 1992-05-13 1992-05-13 Reluctance motor

Publications (1)

Publication Number Publication Date
JPH05316701A true true JPH05316701A (en) 1993-11-26

Family

ID=14792924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12070492A Pending JPH05316701A (en) 1992-05-13 1992-05-13 Reluctance motor

Country Status (1)

Country Link
JP (1) JPH05316701A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0813287A2 (en) * 1996-06-11 1997-12-17 Aisin Seiki Kabushiki Kaisha Switched reluctance motors
US6906448B2 (en) 2001-11-12 2005-06-14 Mitsubishi Denki Kabushiki Kaisha Synchronous inductance motor, a manufacturing method of the synchronous inductance motor, and a compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0813287A2 (en) * 1996-06-11 1997-12-17 Aisin Seiki Kabushiki Kaisha Switched reluctance motors
EP0813287A3 (en) * 1996-06-11 1998-02-11 Aisin Seiki Kabushiki Kaisha Switched reluctance motors
US5917263A (en) * 1996-06-11 1999-06-29 Aisin Seiki Kabushiki Kaisha Switched reluctance motor
US6906448B2 (en) 2001-11-12 2005-06-14 Mitsubishi Denki Kabushiki Kaisha Synchronous inductance motor, a manufacturing method of the synchronous inductance motor, and a compressor

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