JPH0847185A - Motor core - Google Patents
Motor coreInfo
- Publication number
- JPH0847185A JPH0847185A JP6182283A JP18228394A JPH0847185A JP H0847185 A JPH0847185 A JP H0847185A JP 6182283 A JP6182283 A JP 6182283A JP 18228394 A JP18228394 A JP 18228394A JP H0847185 A JPH0847185 A JP H0847185A
- Authority
- JP
- Japan
- Prior art keywords
- laminated
- iron core
- core
- motor
- steel sheet
- 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
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主に各種電磁モータの
鉄心に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to iron cores of various electromagnetic motors.
【０００２】[0002]
【従来の技術】近年、モータの小型化，高性能化のため
に高出力，低損失，高効率化の必要性が高まっている。
特にロボットなどに使用されるサーボモータにおいて
は、ロボットの高速化，省スペース化，高出力化に対応
するために、残留磁束密度の高い希土類磁石を使用し、
巻線の高密度化を可能にするために分割した鉄心の構成
が主流となっている。そのため、モータの鉄心内は高磁
束密度となり、モータの鉄心は高透磁率で低鉄損である
必要が迫られている。このような背景のもと、より効率
的に磁束を流す鉄心の構成が望まれている。2. Description of the Related Art In recent years, there has been an increasing need for high output, low loss and high efficiency in order to reduce the size and performance of motors.
In particular, in servomotors used in robots, rare earth magnets with high residual magnetic flux density are used in order to respond to higher robot speeds, space savings, and higher output.
The mainstream structure is a split iron core to enable higher density windings. Therefore, the magnetic flux density is high in the iron core of the motor, and the iron core of the motor is required to have high magnetic permeability and low iron loss. Against this background, there is a demand for a more efficient iron core configuration.
【０００３】従来、モータの鉄心内では磁束の流れる方
向が回転とともに刻々と変わるために、モータの鉄心に
主に無方向性電磁鋼板が使われている。無方向性電磁鋼
板によるモータの鉄心では、飽和磁化に限界があり高磁
束密度の鉄心設計には限界がある。無方向性電磁鋼板を
用いると、空隙部より鉄心歯部へと流れ込む磁束の方向
は磁石の磁極の位置が変わるたびに変化し、そのために
ギャップ内の磁束の流れも同様に変化しやすいためにト
ルクリップルが発生したり、効率が低下するという問題
が生じていた。Conventionally, non-oriented electrical steel sheets have been mainly used for the iron core of a motor because the direction of the magnetic flux changes momentarily with rotation in the iron core of the motor. A motor iron core made of non-oriented electrical steel sheet has a limit in saturation magnetization and has a limit in iron core design with high magnetic flux density. When a non-oriented electrical steel sheet is used, the direction of the magnetic flux that flows from the void to the core tooth changes with each change in the position of the magnetic pole of the magnet, and therefore the magnetic flux in the gap also tends to change. There have been problems that torque ripple occurs and efficiency decreases.
【０００４】さらに、上記鉄心を永久磁石モータに使用
する場合、永久磁石の磁気エネルギーとスロット開口部
の存在と相成って、コギングトルクが発生したり誘起電
圧の歪み率が上昇し、永久磁石の性能に見合ったモータ
の高性能化が実現できない欠点があった。Furthermore, when the above iron core is used in a permanent magnet motor, the magnetic energy of the permanent magnet and the existence of the slot opening are combined to generate cogging torque or increase the distortion rate of the induced voltage, resulting in the performance of the permanent magnet. However, there was a drawback in that it was not possible to realize the high performance of the motor commensurate with.
【０００５】モータのコギングトルクが大きいと回転が
不円滑になったり振動騒音が発生する問題が起こるの
で、コギングトルク低減のための工夫がなされている。
コギングトルクの低減の工夫として、回転子の永久磁石
の端部を削ったり、固定子に補助溝を設けることが主流
になっているが、モータの空隙部が不均一になり誘起電
圧の低下や誘起電圧の歪みの増大によりモータの効率が
低下する欠点が生じていた。When the cogging torque of the motor is large, there arises a problem that the rotation becomes unsmooth and vibration noise is generated. Therefore, measures are taken to reduce the cogging torque.
In order to reduce the cogging torque, it is common to cut the end of the permanent magnet of the rotor or to provide an auxiliary groove in the stator, but the gap in the motor becomes uneven and the induced voltage drops and There has been a drawback that the efficiency of the motor is lowered due to the increase in the distortion of the induced voltage.
【０００６】[0006]
【発明が解決しようとする課題】本発明は既に述べた従
来のモータの鉄心についての課題を解決するためになさ
れたもので、効率良く磁束を流すことで励磁電流や鉄損
を低減したり磁気飽和をおさえ、さらに永久磁石モータ
の場合コギングトルクや誘起電圧の歪みを小さくしつつ
誘起電圧を大きくすることで、効率を高めるモータの鉄
心を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional iron core of a motor, and it is possible to reduce the exciting current and the iron loss and to reduce the magnetic loss by efficiently flowing the magnetic flux. An object of the present invention is to provide a motor iron core that improves efficiency by suppressing saturation and further increasing the induced voltage while reducing the cogging torque and the distortion of the induced voltage in the case of a permanent magnet motor.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明は、モータの鉄心において一方向性または二方
向性電磁鋼板を使用できるように鉄心を分割し、分割し
た積層鉄心個片ごとに方向性電磁鋼板の磁化容易方向を
決めて積層し、この積層鉄心個片を固着することにより
一体構造とする構成を特徴とする。In order to achieve the above object, the present invention divides an iron core so that a unidirectional or bidirectional electrical steel sheet can be used in an iron core of a motor, and divides each of the divided laminated iron core pieces. The grain-oriented electrical steel sheets are laminated by deciding the direction of easy magnetization, and the laminated core pieces are fixed to form an integral structure.
【０００８】無方向性電磁鋼板とは日本工業規格ＪＩＳ
Ｃ ２５５２−１９８６で規格されているものである。
方向性電磁鋼板は一方向性電磁鋼板および二方向性電磁
鋼板であり、一方向性電磁鋼板は日本工業規格ＪＩＳ
Ｃ ２５５３−１９８６で規格されているもので、高透
磁率・低鉄損特性がある磁化容易方向を一つ持つ鋼板で
ある。また、二方向性電磁鋼板は圧延方向と延方向と直
角な方向に磁化容易方向を持つ鋼板である。なお、方向
性電磁鋼板に関して板厚やシリコン，ケイ素などの含有
量は本発明が適用である限り制約は受けない。Non-oriented electrical steel sheet is a Japanese Industrial Standard JIS
It is standardized by C 2552-1986.
Grain-oriented electrical steel sheets are unidirectional electrical steel sheets and bidirectional electrical steel sheets. The unidirectional electrical steel sheets are Japanese Industrial Standards JIS.
It is a steel plate having one magnetic easy direction with high magnetic permeability and low iron loss characteristics, which is standardized by C 2553-1986. Further, the bidirectional electrical steel sheet is a steel sheet having an easy magnetization direction in a direction perpendicular to the rolling direction and the rolling direction. Regarding the grain-oriented electrical steel sheet, the thickness and the content of silicon, silicon, etc. are not limited as long as the present invention is applied.
【０００９】[0009]
【作用】この構成により、以下の作用を奏することとな
る。 １）鉄心を分割することにより、積層鉄心個片ごとに方
向性電磁鋼板の磁化容易方向を決めることができ、磁束
が流れる方向に合わせて方向性電磁鋼板の磁化容易方向
を使うことで、鉄心内の鉄損を低減することや励磁電流
をおさえることができる。 ２）積層鉄心個片に方向性電磁鋼板を使用することによ
り、電磁鋼板の磁化容易方向を任意に設定することでモ
ータの空隙内の磁束の流れを容易に決定でき、トルクリ
ップルやコギングトルクや誘起電圧の歪みを低減しつつ
誘起電圧を増大させることができ、モータの効率を高め
ることができる。With this structure, the following actions are achieved. 1) By dividing the iron core, the easy magnetization direction of the grain-oriented electrical steel sheet can be determined for each laminated iron core piece, and by using the easy-magnetization direction of the grain-oriented electrical steel sheet in accordance with the direction in which the magnetic flux flows, the iron core It is possible to reduce the iron loss inside and to suppress the exciting current. 2) By using grain-oriented electrical steel sheets for the laminated iron core pieces, the flow of magnetic flux in the air gap of the motor can be easily determined by setting the easy magnetization direction of the electrical steel sheets, and torque ripple, cogging torque, The induced voltage can be increased while reducing the distortion of the induced voltage, and the efficiency of the motor can be improved.
【００１０】[0010]
（実施例１）以下本発明の一実施例について、図面を参
照しながら説明する。(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.
【００１１】図１は本発明を適用した永久磁石モータの
ステータの断面図である。図１において、モータの鉄心
は分割面１４により磁極数と同数の積層鉄心個片１２に
分割されており、積層鉄心個片１２は一方向性電磁鋼板
で構成されている。積層鉄心個片１２には絶縁部１３を
介して巻線部１５が巻かれている。一方向性電磁鋼板
は、磁化容易方向１６が図１に示すように巻線部１５に
対して直角になるように使用されている。また、積層鉄
心個片１２は一方向性電磁鋼板の磁化容易方向１６がす
べて同じ図中の矢印の方向になるように積層されてい
る。FIG. 1 is a sectional view of a stator of a permanent magnet motor to which the present invention is applied. In FIG. 1, the iron core of the motor is divided by the dividing surface 14 into the same number of laminated core pieces 12 as the number of magnetic poles, and the laminated core pieces 12 are made of a unidirectional magnetic steel sheet. A winding portion 15 is wound around the laminated core piece 12 via an insulating portion 13. The unidirectional electrical steel sheet is used so that the easy magnetization direction 16 is perpendicular to the winding portion 15 as shown in FIG. Further, the laminated core pieces 12 are laminated so that the easy magnetization directions 16 of the unidirectional electromagnetic steel sheets are all in the same arrow direction.
【００１２】上記構成のモータの鉄心において、積層鉄
心個片１２内を通る磁束は常に高い透磁率を持つ一方向
性電磁鋼板の磁化容易方向１６に流れ、磁束密度を増や
すことができ、誘起電圧が大きくなる効果がある。In the iron core of the motor having the above structure, the magnetic flux passing through the laminated iron core pieces 12 always flows in the easy magnetization direction 16 of the grain-oriented electrical steel sheet having a high magnetic permeability, so that the magnetic flux density can be increased and the induced voltage can be increased. Has the effect of increasing.
【００１３】また、積層鉄心個片１２の極歯端部付近で
は磁束が積層鉄心個片１２の極歯部へと曲げられ、空隙
部から極歯に流れ込む磁束を磁化容易方向１６の一定の
方向に集中することができる。磁化容易方向１６は、永
久磁石の磁極の位置が変わっても、空隙部内の磁束は一
方向性電磁鋼板の磁化容易方向１６の方へ流す働きがあ
るのでスロット開口部の影響を受けにくくなり、コギン
グトルクや誘起電圧の歪みやトルクリップルを低減でき
る効果がある。Further, in the vicinity of the pole tooth ends of the laminated core piece 12, the magnetic flux is bent to the pole tooth portions of the laminated core piece 12, and the magnetic flux flowing from the voids into the pole teeth is directed in a fixed direction of the easy magnetization direction 16. You can concentrate on Even if the position of the magnetic pole of the permanent magnet changes, the easy magnetization direction 16 has a function of causing the magnetic flux in the void to flow toward the easy magnetization direction 16 of the unidirectional electrical steel sheet, so that it is less affected by the slot opening. This has the effect of reducing cogging torque, distortion of induced voltage, and torque ripple.
【００１４】（実施例２）以下本発明の第２の実施例に
ついて、図面を参照しながら説明する。(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.
【００１５】図２は積層鉄心個片２１内において磁化容
易方向２３を設定する方向を示す断面図である。図２に
おいて、θは磁化容易方向２３が空隙部の法線方向２２
に対する斜めになっている角度を示しており、このθを
傾き角と称する。傾き角はモータの空隙部に対する角度
であり、巻線に対しては任意である。図２の積層鉄心個
片を所定数だけ組み合わせたモータの鉄心をステータに
用いた永久磁石モータに関して、傾き角に対するコギン
グトルク，誘起電圧の実効値，誘起電圧の歪み率の変化
について、磁界解析により計算した結果を図３に示す。
図３中の点線は無方向性電磁鋼板で積層鉄心個片２１を
作成した場合の同様の解析値である。FIG. 2 is a sectional view showing the direction in which the easy magnetization direction 23 is set in the laminated core piece 21. In FIG. 2, θ is the easy magnetization direction 23 and is the normal direction 22 of the void.
The angle is a slanted angle with respect to, and this θ is called a tilt angle. The tilt angle is an angle with respect to the air gap of the motor and is arbitrary for the winding. Regarding the permanent magnet motor using the stator core of the motor in which a predetermined number of laminated iron core pieces are combined in FIG. The calculated result is shown in FIG.
The dotted line in FIG. 3 is the same analysis value when the laminated core piece 21 is made of a non-oriented electrical steel sheet.
【００１６】図３から明らかなように、傾き角３０度付
近で最もコギングトルクが小さく、誘起電圧の実効値は
最も大きく、その歪み率は最小になっていることがわか
る。そして、傾き角が６５度を越えると、無方向性電磁
鋼板を積層した場合よりもコギングトルクは大きく、ま
た誘起電圧実効値は小さくなっている。誘起電圧歪み率
は、傾き角を０度から９０度変化させても無方向性電磁
鋼板の場合よりも小さくなっている。以上の結果より、
傾き角は０度から６０度の範囲に設定することが望まし
いと考えられる。より好ましくは０度から５度以内、２
０度から４５度以内の範囲である。As is clear from FIG. 3, the cogging torque is the smallest, the effective value of the induced voltage is the largest, and the distortion rate is the smallest in the vicinity of the inclination angle of 30 degrees. When the inclination angle exceeds 65 degrees, the cogging torque is larger and the effective value of the induced voltage is smaller than that when the non-oriented electrical steel sheets are laminated. The induced voltage distortion rate is smaller than that of the non-oriented electrical steel sheet even when the tilt angle is changed from 0 degree to 90 degrees. based on the above results,
It is considered desirable to set the tilt angle in the range of 0 to 60 degrees. More preferably within 0 to 5 degrees, 2
It is within the range of 0 to 45 degrees.
【００１７】以上のように本発明の第２の実施例のモー
タの鉄心においては、傾き角を０度以上６０度以下の範
囲に変化させることで、コギングトルクを最大４５％程
度、誘起電圧歪み率を最大７０％低減しつつ、誘起電圧
を最大５％程度増加させる効果が得られる。As described above, in the iron core of the motor of the second embodiment of the present invention, the cogging torque is about 45% at maximum and the induced voltage distortion is changed by changing the tilt angle in the range of 0 degree to 60 degrees. The effect of increasing the induced voltage by about 5% at the maximum while reducing the ratio by 70% at the maximum can be obtained.
【００１８】（実施例３）以下本発明の第３の実施例に
ついて、図面を参照しながら説明する。(Embodiment 3) A third embodiment of the present invention will be described below with reference to the drawings.
【００１９】図４は積層鉄心個片４１の断面図であり、
一方向性電磁鋼板材による鉄心個片４２を所定枚数積層
して構成されている。各鉄心個片４２の磁化容易方向４
３は奇数枚目と偶数枚目とで互いに直交するように積層
する。ただし、傾き角は０度以上６０度以下の範囲にし
ている。FIG. 4 is a sectional view of the laminated iron core piece 41.
A predetermined number of iron core pieces 42 made of a unidirectional electromagnetic steel sheet are laminated. Easy magnetization direction 4 of each iron core piece 42
In No. 3, the odd numbered sheet and the even numbered sheet are laminated so as to be orthogonal to each other. However, the tilt angle is in the range of 0 degrees to 60 degrees.
【００２０】上記構成において、磁束は透磁率が高い方
へ流れる性質があるので空隙部から積層鉄心個片４１に
入る磁束は右側では奇数枚目の電磁鋼板へ、反対に左側
では偶数枚目の電磁鋼板へと流れやすくなる。In the above structure, since the magnetic flux has a property of flowing toward the higher magnetic permeability, the magnetic flux entering the laminated core piece 41 from the void portion is to the odd-numbered electromagnetic steel sheets on the right side, and conversely to the even-numbered sheet on the left side. It becomes easier to flow to the electromagnetic steel sheet.
【００２１】このような本発明の実施例によれば、サー
ボモータのように左右どちらにも回転する場合におい
て、第２の実施例の効果が得られる。According to such an embodiment of the present invention, the effect of the second embodiment can be obtained in the case of rotating to the left or right like a servomotor.
【００２２】なお、本発明はモータの構造がインナーロ
ータタイプやアウターロータタイプにかかわらず適用で
きる。The present invention can be applied regardless of whether the motor structure is an inner rotor type or an outer rotor type.
【００２３】（実施例４）以下本発明の第４の実施例に
ついて、図面を参照しながら説明する。(Embodiment 4) A fourth embodiment of the present invention will be described below with reference to the drawings.
【００２４】図５はアウターロータタイプのモータのス
テータを適用した例である。５１は積層鉄心個片、５２
は分割面である。本実施例においても、第１の実施例，
第２の実施例，第３の実施例と同様な効果が得られる。FIG. 5 shows an example in which a stator of an outer rotor type motor is applied. 51 is a laminated iron core piece, 52
Is the dividing plane. Also in this embodiment, the first embodiment,
The same effects as those of the second and third embodiments can be obtained.
【００２５】また、本発明のモータの鉄心は鉄心を分割
できる限り適用が可能である。すなわち、ステータやロ
ータにも適用ができる。また、分割面を適当に決めてや
ることでスッテピングモータ，トロイダルモータや誘導
機などすべての電磁モータに対しても本発明を適用可能
なことはいうまでもない。The iron core of the motor of the present invention is applicable as long as the iron core can be divided. That is, it can be applied to a stator and a rotor. Further, it goes without saying that the present invention can be applied to all electromagnetic motors such as stepping motors, toroidal motors and induction machines by appropriately determining the division surface.
【００２６】さらに、積層鉄心個片に一方向性電磁鋼板
を用いた例を示したが、積層鉄心個片を二方向性電磁鋼
板を積層して構成しても実施例１や実施例２と同様な効
果が得られるのはいうまでもない。Further, although an example in which a unidirectional electromagnetic steel plate is used for the laminated iron core piece has been shown, even if the laminated iron core piece is formed by laminating bidirectional electromagnetic steel sheets, it is possible to obtain the same as in Example 1 or Example 2. It goes without saying that the same effect can be obtained.
【００２７】この場合、二方向性電磁鋼板は互いに直交
する２つの磁化容易方向があるので、極歯単位ごとの分
割で一方向性電磁鋼板の実施例と同様な効果が得られ、
一方向性電磁鋼板の時と比べて分割面の数を半減でき、
製造工数を削減できる効果がある。In this case, since the bidirectional electrical steel sheet has two easy magnetization directions orthogonal to each other, the same effect as that of the embodiment of the unidirectional electrical steel sheet can be obtained by dividing each pole tooth unit.
The number of dividing surfaces can be halved compared to the case of unidirectional electrical steel sheet,
This has the effect of reducing manufacturing man-hours.
【００２８】[0028]
【発明の効果】以上のように本発明によれば、モータの
鉄心を分割し一方向性または二方向性の方向性電磁鋼板
を用いて積層することにより、コギングトルクや誘起電
圧歪みを小さくしながら誘起電圧を大きくし、さらにト
ルクリップルや回転むらが小さい小型でかつ高出力のモ
ータを得ることができる。また、鉄心内の磁束が流れる
方向に合わせて方向性電磁鋼板の磁化容易方向を決める
ことで励磁電流をおさえ、鉄心内の鉄損を低減でき高効
率化が図れる。As described above, according to the present invention, the cogging torque and the induced voltage distortion can be reduced by dividing the iron core of the motor and laminating the unidirectional or bidirectional grain-oriented electrical steel sheets. However, it is possible to obtain a small-sized and high-output motor with a large induced voltage and small torque ripple and uneven rotation. Also, by determining the easy magnetization direction of the grain-oriented electrical steel sheet in accordance with the direction of the magnetic flux in the iron core, the exciting current can be suppressed, the iron loss in the iron core can be reduced, and high efficiency can be achieved.
【００２９】また、方向性電磁鋼板の磁化容易方向を鉄
心内の磁束の流れる方向にそろえることは、無方向性電
磁鋼板の場合よりも磁束の流れる方向が固定しやすくな
り、量産しても常に一定の磁気回路を形成するものを製
造しやすく、製品の特性のばらつきがおさえられる効果
がある。Aligning the direction of easy magnetization of the grain-oriented electrical steel sheet with the direction of the magnetic flux flowing in the iron core makes it easier to fix the direction of the magnetic flux than in the case of the non-oriented electrical steel sheet, and it is always possible to mass-produce it. It is easy to manufacture a product that forms a certain magnetic circuit, and this has the effect of suppressing variations in product characteristics.
【００３０】また、積層鉄心の分割細分化によりプレス
設備が小型化され、生産効率を著しく向上させる効果も
ある。Further, there is an effect that the press equipment is downsized by the division and subdivision of the laminated iron core, and the production efficiency is remarkably improved.
【図１】本発明の第１の実施例におけるモータの鉄心の
断面図FIG. 1 is a sectional view of an iron core of a motor according to a first embodiment of the present invention.
【図２】本発明の第２の実施例におけるモータの鉄心を
構成する積層鉄心個片を示す図FIG. 2 is a diagram showing a laminated iron core piece constituting an iron core of a motor according to a second embodiment of the present invention.
【図３】本発明の第２の実施例におけるモータの各種特
性図FIG. 3 is a graph showing various characteristics of the motor according to the second embodiment of the present invention.
【図４】本発明の第３の実施例におけるモータの鉄心を
構成する積層鉄心個片の斜視図FIG. 4 is a perspective view of a laminated core piece that constitutes an iron core of a motor according to a third embodiment of the present invention.
【図５】本発明の第４の実施例におけるモータの鉄心の
断面図FIG. 5 is a sectional view of an iron core of a motor according to a fourth embodiment of the present invention.
１２，２１，４１，５１ 積層鉄心個片 ４２ 鉄心個片 １３ 絶縁部 １４，５２ 分割面 １５ 巻線部 １６，２３，４３ 磁化容易方向 ２２，４４ 空隙部に対する法線方向 12, 21, 41, 51 Laminated iron core piece 42 Iron core piece 13 Insulation part 14, 52 Dividing surface 15 Winding part 16, 23, 43 Easy magnetization direction 22, 44 Normal direction to void
Claims (10)
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を一方向性電磁鋼板で構成したことを特徴
とするモータの鉄心。1. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. A motor iron core in which the laminated iron core is pressed and fixed in the inner diameter direction, wherein the laminated iron core is formed of a unidirectional electrical steel sheet.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を一方向性電磁鋼板で積層し、この一方向
性電磁鋼板の磁化容易方向を積層鉄心中に流れる磁束の
方向と一致させるようにしたことを特徴とするモータの
鉄心。2. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. In the iron core of the motor in which the laminated iron core is pressed and fixed in the inner diameter direction, the laminated iron core is laminated with the unidirectional magnetic steel sheet, and the easy magnetization direction of the unidirectional electromagnetic steel sheet is the direction of the magnetic flux flowing in the laminated iron core. Motor core characterized by being matched.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を一方向性電磁鋼板で構成し、この一方向
性電磁鋼板の磁化容易方向を歯部鉄心の巻線方向に対し
て９０度になるように積層したことを特徴とするモータ
の鉄心。3. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. In the iron core of the motor in which the laminated iron core is pressed and fixed in the inner diameter direction, the laminated iron core is formed of a unidirectional magnetic steel sheet, and the easy magnetization direction of the unidirectional electromagnetic steel sheet is set to the winding direction of the tooth core. Motor core characterized by being laminated so as to be 90 degrees.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を一方向性電磁鋼板で構成し、この一方向
性電磁鋼板の磁化容易方向がモータの空隙部の法線方向
に対して０度以上、６０度以下になるように積層したこ
と特徴とするモータの鉄心。4. A laminated iron core divided in the circumferential direction, wherein the divided faces of the laminated iron core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated iron core. In the motor core fixed by pressing the laminated iron core in the inner diameter direction, the laminated iron core is formed of a unidirectional magnetic steel sheet, and the easy magnetization direction of the unidirectional electromagnetic steel sheet is in the normal direction of the air gap of the motor. On the other hand, an iron core of a motor is characterized by being laminated so as to be 0 degrees or more and 60 degrees or less.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を一方向性電磁鋼板で構成し、この一方向
性電磁鋼板の磁化容易方向を偶数枚目と奇数枚目とで９
０度ずらしながら積層した構成を特徴とするモータの鉄
心。5. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. In the iron core of the motor in which the laminated iron core is pressed and fixed in the inner diameter direction, the laminated iron core is formed of a unidirectional magnetic steel sheet, and the easy magnetization direction of the unidirectional electromagnetic steel sheet is an even numbered sheet and an odd numbered sheet. 9
Motor core characterized by a structure in which they are stacked while being offset by 0 degrees.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を二方向性電磁鋼板で構成したことを特徴
とするモータの鉄心。6. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. A motor iron core in which the laminated iron core is pressed and fixed in an inner diameter direction, wherein the laminated iron core is formed of a bidirectional electrical steel sheet.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を二方向性電磁鋼板で積層し、この二方向
性電磁鋼板の磁化容易方向の一つを積層鉄心中に流れる
磁束の方向と一致させるようにしたことを特徴とするモ
ータの鉄心。7. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. In the iron core of a motor in which the laminated iron core is pressed and fixed in the inner diameter direction, the laminated iron core is laminated with a bidirectional magnetic steel sheet, and one of the easy magnetization directions of the bidirectional electromagnetic steel sheet is a magnetic flux flowing in the laminated iron core. The iron core of the motor is characterized by being matched with the direction of.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を二方向性電磁鋼板で構成し、この二方向
性電磁鋼板の磁化容易方向の一つを歯部鉄心の巻線方向
に対して９０度になるように積層した構成を特徴とする
モータの鉄心。8. A laminated core that is divided in the circumferential direction, and the divided surfaces of the laminated core are fixed by welding, welding, or bonding, or by an annular structure continuous to the outer peripheral portion of the laminated core. In a motor iron core in which the laminated iron core is pressed and fixed in the inner diameter direction, the laminated iron core is composed of a bidirectional electrical steel sheet, and one of the easy magnetization directions of the bidirectional electrical steel sheet is wound on the tooth core. An iron core of a motor, which is characterized by being laminated at 90 degrees with respect to the direction.
記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を二方向性電磁鋼板で構成し、この二方向
性電磁鋼板の磁化容易方向の一つがモータの空隙部の法
線方向に対して０度以上、６０度以下になるように積層
した構成を特徴とするモータの鉄心。9. A laminated iron core divided in the circumferential direction, wherein the divided faces of the laminated iron core are fixed by welding, welding, or adhesion, or by an annular structure continuous to the outer peripheral portion of the laminated iron core. In the iron core of a motor in which the laminated iron core is pressed and fixed in the inner diameter direction, the laminated iron core is composed of a bidirectional electrical steel sheet, and one of the easy magnetization directions of the bidirectional electrical steel sheet is a normal line of a gap portion of the motor. An iron core of a motor, which is characterized in that it is laminated so as to be 0 degrees or more and 60 degrees or less with respect to the direction.
前記積層鉄心の分割面を溶着か、溶接か、接着して固着
し、 または、前記積層鉄心の外周部に連続した環状構造体に
より前記積層鉄心を内径方向に押圧して固着したモータ
の鉄心において、 前記積層鉄心を無方向性電磁鋼板で構成し、前記無方向
性電磁鋼板の圧延方向を所要方向としたことを特徴とす
るモータの鉄心。10. A laminated iron core divided in the circumferential direction,
In the iron core of the motor, the divided surfaces of the laminated core are fixed by welding, welding, or adhesion, or the laminated core is pressed by the annular structure continuous to the outer peripheral portion of the laminated core in the inner diameter direction and fixed. An iron core of a motor, wherein the laminated iron core is made of a non-oriented electrical steel sheet, and a rolling direction of the non-oriented electrical steel sheet is set as a required direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6182283A JPH0847185A (en) | 1994-08-03 | 1994-08-03 | Motor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6182283A JPH0847185A (en) | 1994-08-03 | 1994-08-03 | Motor core |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001380039A Division JP2002199629A (en) | 2001-12-13 | 2001-12-13 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0847185A true JPH0847185A (en) | 1996-02-16 |
Family
ID=16115571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6182283A Pending JPH0847185A (en) | 1994-08-03 | 1994-08-03 | Motor core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0847185A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08317619A (en) * | 1995-05-12 | 1996-11-29 | Nippon Densan Corp | Permanent-magnet motor |
| JPH09261902A (en) * | 1996-03-19 | 1997-10-03 | Mitsubishi Electric Corp | Radial gap motor with core |
| JP2003502985A (en) * | 1998-11-06 | 2003-01-21 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method for producing a rotor or stator consisting of sheet-metal pieces of an electric machine |
| JP2009017669A (en) * | 2007-07-04 | 2009-01-22 | Fuji Electric Systems Co Ltd | Permanent magnet type rotating machine |
| JP2010233374A (en) * | 2009-03-27 | 2010-10-14 | Canon Inc | Inner rotor type motor |
| JP2011199991A (en) * | 2010-03-18 | 2011-10-06 | Mitsubishi Electric Corp | Stator of rotary electric machine and method of manufacturing the same |
| JP2013021766A (en) * | 2011-07-07 | 2013-01-31 | Jfe Steel Corp | Method of analyzing motor characteristics |
| JP2013236430A (en) * | 2012-05-08 | 2013-11-21 | Mitsubishi Electric Corp | Stator structure of motor, and method for manufacturing the same |
| JP2017514440A (en) * | 2014-04-17 | 2017-06-01 | 林子進ＬＩＮ， Ｚｉｊｉｎｇ | High-efficiency motor stator manufactured using grain-oriented silicon steel sheet |
| CN108292866A (en) * | 2015-11-27 | 2018-07-17 | 日本电产株式会社 | The manufacturing method of motor and motor |
| WO2020039682A1 (en) * | 2018-08-24 | 2020-02-27 | ミネベアミツミ株式会社 | Motor and method for manufacturing motor |
| WO2021095857A1 (en) | 2019-11-15 | 2021-05-20 | 日本製鉄株式会社 | Stator core and rotary electric machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08317619A (en) * | 1995-05-12 | 1996-11-29 | Nippon Densan Corp | Permanent-magnet motor |
| JPH09261902A (en) * | 1996-03-19 | 1997-10-03 | Mitsubishi Electric Corp | Radial gap motor with core |
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| JP2009017669A (en) * | 2007-07-04 | 2009-01-22 | Fuji Electric Systems Co Ltd | Permanent magnet type rotating machine |
| JP2010233374A (en) * | 2009-03-27 | 2010-10-14 | Canon Inc | Inner rotor type motor |
| JP2011199991A (en) * | 2010-03-18 | 2011-10-06 | Mitsubishi Electric Corp | Stator of rotary electric machine and method of manufacturing the same |
| JP2013021766A (en) * | 2011-07-07 | 2013-01-31 | Jfe Steel Corp | Method of analyzing motor characteristics |
| JP2013236430A (en) * | 2012-05-08 | 2013-11-21 | Mitsubishi Electric Corp | Stator structure of motor, and method for manufacturing the same |
| JP2017514440A (en) * | 2014-04-17 | 2017-06-01 | 林子進ＬＩＮ， Ｚｉｊｉｎｇ | High-efficiency motor stator manufactured using grain-oriented silicon steel sheet |
| CN108292866A (en) * | 2015-11-27 | 2018-07-17 | 日本电产株式会社 | The manufacturing method of motor and motor |
| US10658885B2 (en) | 2015-11-27 | 2020-05-19 | Nidec Corporation | Motor and manufacturing method of motor |
| WO2020039682A1 (en) * | 2018-08-24 | 2020-02-27 | ミネベアミツミ株式会社 | Motor and method for manufacturing motor |
| US11996735B2 (en) | 2018-08-24 | 2024-05-28 | Minebea Mitsumi Inc. | Motor |
| WO2021095857A1 (en) | 2019-11-15 | 2021-05-20 | 日本製鉄株式会社 | Stator core and rotary electric machine |
| KR20220088773A (en) | 2019-11-15 | 2022-06-28 | 닛폰세이테츠 가부시키가이샤 | Stator core and rotating electric machine |
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