JP2005237110A - Stator of motor and method for manufacturing same - Google Patents

Stator of motor and method for manufacturing same Download PDF

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JP2005237110A
JP2005237110A JP2004043000A JP2004043000A JP2005237110A JP 2005237110 A JP2005237110 A JP 2005237110A JP 2004043000 A JP2004043000 A JP 2004043000A JP 2004043000 A JP2004043000 A JP 2004043000A JP 2005237110 A JP2005237110 A JP 2005237110A
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winding
phase
layer
stator
neutral point
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JP4485818B2 (en
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Hisashi Otsuka
久 大塚
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To overcome the problem that a dielectric strength of a first layer as a winding start section on an inside face of a slot of a conventional motor stator decreases in comparison with a second layer or more. <P>SOLUTION: The stator is provided with laminated iron core 10 having laminated steel plates, a plurality of slots 10s and pole teeth 10t between the slots 10s, phase windings 35 having a continuous wire aligned and wound onto the pole teeth 10t from a neutral point to a phase input, first and second phase windings 35 formed by the phase windings 35 and having n phases, a winding section 30 having the first and second phase windings 35, and an insulative section 40 for insulating the winding section 30 and the laminated iron core 10. The first and second phase windings 35 having at least two different phases are accommodated in one slot 10s. The phase input is connected to the nearest side of the first and second phase windings 35. The neutral point is connected to the nearest side of the pole teeth 10t. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は各種産業機械に用いられる電動機の固定子に関し、特に、絶縁耐力を向上したものである。   The present invention relates to a stator for an electric motor used in various industrial machines, and particularly, has improved dielectric strength.

従来の電動機の固定子では、特許文献１に記載のように、極歯単位ごとに極方向に分割された積層鉄心と前記積層鉄心の極歯部に直交してほどこした巻線とを備え、前記積層鉄心を所定数量結合して円筒状に形成する際、巻線を整列巻で異相間に最も近い側に中性点を接続し、極歯部に最も近い側に相入力を接続することで絶縁耐量を高くすることができ、より高密度巻線が容易にでき一層の小型，高出力化が図れ、実用上極めて効果のある電動機の固定子とすることができる。
特開平９−２３６００号公報 In a conventional stator of an electric motor, as described in Patent Document 1, it is provided with a laminated iron core divided in the pole direction for each pole tooth unit and windings applied perpendicularly to the pole tooth portion of the laminated iron core, When a predetermined number of the laminated iron cores are combined to form a cylindrical shape, the windings are aligned and the neutral point is connected to the side closest to the different phases, and the phase input is connected to the side closest to the pole tooth portion. Thus, the dielectric strength can be increased, a higher-density winding can be easily achieved, a further reduction in size and output can be achieved, and an electric motor stator that is extremely effective in practice can be obtained.
Japanese Patent Laid-Open No. 9-23600

しかしながら、発明者は鋭意検討および実験を重ねた結果、固定子のスロット内面、すなわち、巻線の巻き始め部分となる第１層目の絶縁耐力が第２層目以降に比較して絶縁耐力が低下するということを見出した。したがって、電動機の定格電圧などを考慮した絶縁耐力の点では、巻線を整列巻で異相間に最も近い側に中性点を接続し、極歯部に最も近い側に相入力を接続することは好ましいことではないとう問題があった。   However, as a result of intensive studies and experiments, the inventors have found that the dielectric strength of the first layer, which is the slot inner surface of the stator, that is, the winding start portion of the winding, is higher than that of the second layer and thereafter. I found that it declined. Therefore, in terms of dielectric strength considering the rated voltage of the motor, etc., connect the neutral point on the side closest to the interphase and connect the phase input on the side closest to the pole tooth part. There was a problem that was not preferable.

本発明は、上記のような問題を解決するためになされたもので、電動機の固定子及び電動機の固定子製造方法を提供することを目的とするものである。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a stator for an electric motor and a method for manufacturing the stator for the electric motor.

第１の発明に係る電動機の固定子は、鋼板が積層されると共に、複数のスロットと該スロット間に極歯部とを有する積層鉄心と、中性点から連続した相入力までの電線を前記極歯部に整列巻で巻回すると共に、ｎ相を有する少なくとも第1各相巻線、第２各相巻線と、該第1各相巻線、第２各相巻線とを有する巻線部と、該巻線部と前記積層鉄心とを絶縁する絶縁部とを備え、一つの前記スロットに前記第１、第２各相巻線を収納すると共に、前記第１各相巻線と前記第２各相巻線との最も近い側に前記相入力が接続され、前記極歯部に最も近い側に前記中性点が接続された、ことを特徴とするものである。   The stator of the electric motor according to the first aspect of the present invention includes a laminated iron core having a plurality of slots and pole teeth between the slots, and a wire from a neutral point to a continuous phase input. A winding having at least a first phase winding and a second phase winding having n-phase, and a first phase winding and a second phase winding, and winding with an aligned winding around the pole tooth portion. A wire portion and an insulating portion that insulates the winding portion and the laminated iron core, and the first and second phase windings are housed in one of the slots; The phase input is connected to the side closest to the second phase winding, and the neutral point is connected to the side closest to the pole tooth portion.

第２の発明に係る電動機の固定子における第１、第２各相巻線は、極歯部に最も近い側の側面に沿って電線が巻回された第1層を形成してあり、前記第1層の上に中性点から相入力側の方向に前記電線が巻回された第２層とを有する、ことを特徴とするものである。   Each of the first and second phase windings in the stator of the electric motor according to the second invention forms a first layer in which an electric wire is wound along a side surface closest to the pole tooth portion, And a second layer on which the electric wire is wound in a direction from the neutral point to the phase input side on the first layer.

第３の発明に係る電動機の固定子は、第1各相巻線と第２各相巻線との間に介在させた絶縁部材を、を備えたことを特徴とするものである。   According to a third aspect of the present invention, there is provided a motor stator including an insulating member interposed between the first phase winding and the second phase winding.

第４の発明に係る電動機の固定子の製造方法は、鋼板が積層されると共に、複数のスロットと該スロット間に極歯部とを有する積層鉄心と、前記極歯部に中性点から連続した相入力まで電線を整列巻で巻回すると共に、ｎ相を有する少なくとも第1各相巻線、第２各相巻線と、該第1各相巻線、第２各相巻線とを有する巻線部と、該巻線部と前記積層鉄心とを絶縁する絶縁部とを備え、一つの前記スロットに前記第１、第２各相巻線を収納すると共に、前記第１各相巻線と前記第２各相巻線との最も近い側に前記相入力を接続し、前記極歯部に最も近い側に前記中性点を接続する電動機の固定子の製造方法であって、前記極歯部に最も近い側の側面に沿って第１速度で前記電線を巻回して第1層を形成した後、前記第１速度よりも高い第２速度により前記第1層の上に前記中性点から前記相入力側に前記電線を巻回して第２層を形成する、ことを特徴とするものである。   According to a fourth aspect of the present invention, there is provided a method of manufacturing a stator for an electric motor, in which steel plates are laminated, a laminated core having a plurality of slots and pole teeth between the slots, and the pole teeth are continuously formed from a neutral point. The electric wires are wound in aligned winding until the phase input is completed, and at least the first phase winding, the second phase winding, and the first phase winding, the second phase winding having n phases are provided. A winding portion having an insulating portion that insulates the winding portion from the laminated iron core, and the first and second phase windings are housed in one of the slots. A method for manufacturing a stator of an electric motor, wherein the phase input is connected to a side closest to a wire and each second phase winding, and the neutral point is connected to a side closest to the pole tooth portion, After winding the electric wire at a first speed along the side surface closest to the pole tooth portion to form the first layer, the second speed higher than the first speed is obtained. Ri to form a second layer by winding the wire in the phase input from the neutral point on the first layer, it is characterized in.

以上のように、第１の発明によれば、積層鉄心に電線を整列巻で各異相巻線間の最も近い側に相入力を、極歯部に最も近い側を中性点に接続したものである。かかる固定子によれば、巻線の絶縁耐力が極歯部に最も近い側で最も低くなるという 発明者の発見に基いて、固定子の巻線が巻回されたものである。したがって、巻線における中性点側の電線被覆に加わる電圧が最も低いので、電線の絶縁耐力が低くても、全体として絶縁協調が採れた電動機の固定子を得ることができるという効果がある。   As described above, according to the first aspect of the present invention, electric wires are arranged on the laminated iron core and the phase input is connected to the closest side between the different-phase windings, and the side closest to the pole tooth portion is connected to the neutral point. It is. According to such a stator, the winding of the stator is wound based on the discovery of the inventors that the dielectric strength of the winding is lowest on the side closest to the pole tooth portion. Therefore, since the voltage applied to the wire coating on the neutral point side in the winding is the lowest, there is an effect that it is possible to obtain a stator of an electric motor that can achieve insulation coordination as a whole even if the insulation strength of the wire is low.

第２の発明によれば、極歯部に最も近い側の側面に沿って電線を整列巻して第1層を形成してあり、第1層の上に中性点から相入力側に電線を巻回した第２層とを形成したので、第1層が固定子巻線の中性点近傍により形成されるので、第１層を成す電線間に加わる電圧が低い。よって、全体としてより絶縁協調が採れた電動機の固定子を得ることができるという効果がある。   According to the second invention, the first layer is formed by aligning and winding the electric wire along the side surface closest to the pole tooth portion, and the electric wire from the neutral point to the phase input side on the first layer. Since the first layer is formed near the neutral point of the stator winding, the voltage applied between the wires forming the first layer is low. Therefore, there is an effect that it is possible to obtain a stator of an electric motor that can achieve further insulation coordination as a whole.

第３の発明によれば、同一スロットに収められた各異相巻線間に介在させた絶縁部材を設けたので、第1各相巻線と第２核相巻線との間の絶縁耐力をも向上しつつ、スロットの開口部を小さくできるという効果がある。   According to the third aspect of the invention, since the insulating member interposed between the different phase windings housed in the same slot is provided, the dielectric strength between the first each phase winding and the second core phase winding is increased. As a result, the slot opening can be reduced.

第４の発明によれば、積層鉄心に電線を整列巻で各異相巻線間の最も近い側に相入力を、極歯部に最も近い側を中性点に接続した電動機の固定子の製造方法であって、前記極歯部に最も近い側の側面に沿って第１速度で巻回しながら第1層を形成した後、前記第1層の上に前記中性点から前記相入力側に巻回された第２層を前記第１速度よりも高い第２速度により巻回したものである。
好ましくは巻線を成す巻回の第１速度が第２速度のほぼ半分であることが実験結果から言える。したがって、巻線の第１層を形成する電線の絶縁耐力の低下を抑制しつつ電動機の固定子巻線を短時間に形成できるという効果がある。 According to the fourth aspect of the invention, the stator of the motor is manufactured by arranging the electric wires in the laminated iron core and connecting the phase input to the closest side between the different-phase windings and connecting the side closest to the pole tooth portion to the neutral point. The method comprises: forming a first layer while winding at a first speed along a side surface closest to the pole tooth portion, and then moving from the neutral point to the phase input side on the first layer. The wound second layer is wound at a second speed higher than the first speed.
It can be said from experimental results that the first speed of the winding forming the winding is preferably approximately half of the second speed. Therefore, there is an effect that the stator winding of the electric motor can be formed in a short time while suppressing a decrease in the dielectric strength of the electric wire forming the first layer of the winding.

実施の形態１
本発明の一実施の形態を図１乃至図３によって説明する。図１は、一実施の形態を示す電動機の固定子の平面図、図２は図１に示す固定子の部分拡大図、図３は図１に示す電動機の巻線の結線図である。
図１及び図２において、電動機の固定子は、極歯単位ごとに分割されると共に、スロット１０ｓを有する積層鉄心１０と、積層鉄心１０の極歯部１０ｔに形成された絶縁部２０と、電線が極歯部１０ｔに直交して整列巻に巻回されて、一つのスロット１０sに収められた各相巻線３５,３５を有する巻線部３０と、一つのスロット１０sに収められた各相巻線３５,３５、すなわち、第１各相巻線３５と第２各相巻線間３５の絶縁を成す絶縁部材としての絶縁シート４０とを備え、個々に分割された積層鉄心１０に高密度な整列巻線を各電線に示された番号のように巻回が施された後、積層鉄心１０を所定数量結合して円筒状に形成している。 Embodiment 1
An embodiment of the present invention will be described with reference to FIGS. 1 is a plan view of a stator of an electric motor showing an embodiment, FIG. 2 is a partially enlarged view of the stator shown in FIG. 1, and FIG. 3 is a connection diagram of windings of the electric motor shown in FIG.
1 and 2, the stator of the electric motor is divided for each pole tooth unit, and a laminated core 10 having a slot 10 s, an insulating part 20 formed on the pole tooth part 10 t of the laminated core 10, and an electric wire Is wound in an aligned winding perpendicular to the pole tooth portion 10t, and has a winding portion 30 having phase windings 35, 35 housed in one slot 10s, and each phase housed in one slot 10s. Winding 35, 35, that is, an insulating sheet 40 as an insulating member that forms an insulation between the first phase winding 35 and the second phase winding 35, and has a high density in the individually divided laminated core 10 After winding the aligned windings as indicated by the numbers indicated on the electric wires, a predetermined number of laminated iron cores 10 are joined to form a cylindrical shape.

図３において、電動機の固定子の巻線３０はｎ相としての三相のスター結線で、三相交流電源のＵ相、Ｖ相、Ｗ相がそれぞれ接続されるＵ相入力３１Ｕe、Ｖ相入力３１Ｖe、Ｗ相入力３１Ｗeを有しており、各相が複数の各相巻線３５から形成され、巻線の巻始め３１ａが中性点で、巻き終わりがＵ相入力３１Ｕe、Ｖ相入力３１Ｖe、Ｗ相入力３１Ｗeとなるように形成されている。各相巻線３５は、固定子の一スロット１０ｓに収められている。
本実施の形態では、固定子の巻線における第１番目から第６番目までが第1層の巻線を成し、電線巻回の第７番目から第１０番目までが第２層の巻線を成している。 In FIG. 3, the stator winding 30 of the motor is a three-phase star connection as an n-phase, and a U-phase input 31 Ue and a V-phase input to which the U-phase, V-phase, and W-phase of a three-phase AC power source are connected, respectively. 31Ve and W-phase input 31We, each phase is formed by a plurality of phase windings 35, the winding start 31a of the winding is a neutral point, and the winding end is a U-phase input 31Ue, V-phase input 31Ve , W-phase input 31We. Each phase winding 35 is housed in one slot 10s of the stator.
In the present embodiment, the first to sixth windings in the stator winding form the first layer winding, and the seventh to tenth windings of the wire winding are the second layer winding. Is made.

ここで、巻線の巻始め３１ａが中性点で、巻き終わりＵ相入力３１Ｕe、Ｖ相入力３１Ｖe、Ｗ相入力３１Ｗeとなるように形成したのは、図４に示す実験結果に基くものである。まず、図４は、巻線のターン数により絶縁耐力が異なることを示した絶縁耐力特性曲線で、横軸に巻線のターン数、縦軸に絶縁耐力を示し、パラメータとして巻線３０を形成する際の巻線の巻回速度を８０回(min-1)、１６０回(min-1)を二度行って、二種類の巻回速度にて実験した。固定子に第１層を１１ターンとして、第２層などを形成して合計７２ターンにより巻線３０を形成した。その後、該巻線３０を巻き戻することにより電線をほどいて、三ターンずつ切断した所定の長さの切断電線を、さらに長さがちょうど同じになるように切断した二つの第１再切断電線、第２再切断電線を重ねて、第１再切断電線、第２再切断電線のそれぞれの絶縁被覆に電圧を加えて絶縁耐電圧を測定したものである。なお、電線そのものの絶縁耐力の値は、１０(KV)である。
図４の実験結果によれば、第一に、巻線３０のターン数が少ない領域では、電線の絶縁耐力が低く、ターン数が所定値を超えると、電線の絶縁耐力が一定になるものである。これは第1層目、すなわち、１１ターンまでの絶縁耐力が低いのは、積層鉄心１０の角部に電線を巻回しながら第１層目を形成する際には、該角部にて電線が衝撃を受けながら巻回するために電線に機械的なストレスが加わる。このため、電線の絶縁耐力が低下するものと推定される。さらに、第２層目、すなわち、１２ターン以上において電線の絶縁耐力が向上するのは、巻線３０の第１層目の形成により、第1層目の電線の上から電線を巻回するので、第２層目以降における電線の巻回の衝撃が、第1層目を形成する電線よりも緩和される。よって、第２層目以降の電線の絶縁耐力が減少するものと推定される。
第二に、巻線３０を形成する巻回速度により電線の絶縁耐力が異なることで、電線の巻回速度を遅くすると、電線の絶縁耐力が向上し、逆に電線の巻回速度を速くすると、電線の絶縁耐力が低下することにある。これは、巻線の巻回速度が速いと、電線に加わる衝撃が大きくなるから電線の絶縁耐力が低下すると、推定される。 Here, the winding start 31a is a neutral point, and the winding end U-phase input 31Ue, V-phase input 31Ve, and W-phase input 31We are formed based on the experimental results shown in FIG. is there. First, FIG. 4 is a dielectric strength characteristic curve showing that the dielectric strength varies depending on the number of turns of the winding. The horizontal axis indicates the number of turns of the winding, the vertical axis indicates the dielectric strength, and the winding 30 is formed as a parameter. The winding speed at the time of winding was 80 times (min- 1 ) and 160 times (min- 1 ) twice, and experiments were conducted at two kinds of winding speeds. The first layer is 11 turns on the stator, the second layer is formed, and the winding 30 is formed with a total of 72 turns. Thereafter, the first uncut electric wire is unwound by unwinding the winding 30 and cut the cut electric wire of a predetermined length cut by three turns so that the lengths are exactly the same. In addition, the second recutting wire is overlapped, and a voltage is applied to each insulation coating of the first recutting wire and the second recutting wire to measure the insulation withstand voltage. In addition, the value of the dielectric strength of the electric wire itself is 10 (KV).
According to the experimental results of FIG. 4, first, in the region where the number of turns of the winding 30 is small, the dielectric strength of the wire is low, and when the number of turns exceeds a predetermined value, the dielectric strength of the wire becomes constant. is there. This is because the dielectric strength of the first layer, that is, up to 11 turns, is low. When the first layer is formed while winding the electric wire around the corner of the laminated core 10, the electric wire is connected at the corner. Mechanical stress is applied to the wire in order to wind it while receiving an impact. For this reason, it is estimated that the dielectric strength of an electric wire falls. Furthermore, the second layer, that is, the dielectric strength of the wire is improved in 12 turns or more, because the first layer of the winding 30 is formed so that the wire is wound from above the first layer. The impact of winding the electric wire in the second and subsequent layers is more relaxed than the electric wire forming the first layer. Therefore, it is estimated that the dielectric strength of the electric wire after the 2nd layer decreases.
Secondly, because the electric strength of the electric wire varies depending on the winding speed at which the winding 30 is formed. In other words, the dielectric strength of the wire is reduced. This is presumed that when the winding speed of the winding is high, the impact applied to the electric wire increases, so that the dielectric strength of the electric wire decreases.

実施の形態２.
本発明の他の実施の形態を図５によって説明する。本実施の形態は、図４に示した実験結果に基いて巻線を形成する際における、電線の巻回速度は第１層目を形成する時には低くし、第２層目以降を高くすることにより巻線の巻始めから巻終わりまでの電線の絶縁耐力をほぼ一定に維持しつつ、巻線を形成する巻回時間を長くしないようにしたものである。
図５において巻線装置は、巻線の巻始めが中性点で、六回巻回して第１層を形成したことを、サーボ電動機１０１に結合されたエンコーダ１０３の位置検出信号により検出して、第１層よりも七回以降の巻回の巻回速度、ノズルの周回速度を上昇するように形成されている。ノズルの周回速度は好ましくは第１層を形成する際の第１速度とすると、第２層以降が第１速度よりも２倍程度高く設定されている。 Embodiment 2.
Another embodiment of the present invention will be described with reference to FIG. In the present embodiment, when forming the winding based on the experimental results shown in FIG. 4, the winding speed of the electric wire is reduced when the first layer is formed, and the second and subsequent layers are increased. Thus, while maintaining the dielectric strength of the electric wire from the beginning to the end of the winding substantially constant, the winding time for forming the winding is not lengthened.
In FIG. 5, the winding device detects that the winding start is a neutral point and the first layer is formed by winding 6 times by detecting the position detection signal of the encoder 103 coupled to the servo motor 101. The winding speed of the seventh and subsequent windings and the circumferential speed of the nozzle are higher than those of the first layer. Assuming that the peripheral speed of the nozzle is preferably the first speed when forming the first layer, the second and subsequent layers are set to be about twice as high as the first speed.

上記のように構成された巻線装置を用いて電動機の固定子を製造する方法について図１乃至図５によって説明する。まず、固定子の極歯部１０ｔに最も近い側の側面に沿って、ノズルが第１速度として８０で巻回するようにサーボ電動機１０１を回転しながら1番目から６番目による巻回で第1層を形成したことをサーボ電動機１０１に結合されたエンコーダ１０３の位置検出信号から検出して後、第1層の上に中性点から相入力側に巻回された第７番目から第１０番目による巻回で第２層を第１速度よりも高い第２速度により巻回して固定子を形成する。
したがって、固定子の第１層を形成する電線の絶縁耐力の低下を抑制しつつ電動機の固定子巻線を短時間に形成できる。 A method for manufacturing a stator of an electric motor using the winding device configured as described above will be described with reference to FIGS. First, the first to sixth windings are performed while rotating the servo motor 101 so that the nozzle winds at 80 as the first speed along the side surface closest to the pole tooth portion 10t of the stator. After detecting the formation of the layer from the position detection signal of the encoder 103 coupled to the servo motor 101, the seventh to the tenth wound from the neutral point to the phase input side on the first layer The stator is formed by winding the second layer at a second speed higher than the first speed.
Therefore, the stator winding of the electric motor can be formed in a short time while suppressing a decrease in the dielectric strength of the electric wire forming the first layer of the stator.

上記のように各種産業機器などに用いられる電動機の固定子の用途に適用できる。   As described above, the present invention can be applied to the use of an electric motor stator used in various industrial equipment.

一実施の形態を示す一実施の形態を示す電動機の固定子の平面図である。It is a top view of the stator of the electric motor which shows one embodiment which shows one embodiment. 図１に示す固定子の部分拡大図である。It is the elements on larger scale of the stator shown in FIG. 図１に示す電動機の巻線の結線図である。It is a connection diagram of the winding of the electric motor shown in FIG. 図１に示す電動機が巻線のターン数により絶縁耐力が異なることを示した絶縁耐力特性曲線である。2 is a dielectric strength characteristic curve showing that the dielectric strength of the electric motor shown in FIG. 1 varies depending on the number of turns of the winding. 図１に示す巻線の巻回方法を示す固定子の一部を示す平面図である。It is a top view which shows a part of stator which shows the winding method of the coil | winding shown in FIG.

符号の説明Explanation of symbols

１０ 積層鉄心、１０s スロット、１０ｔ 極歯部、３０ 巻線、４０ 絶縁シート。   10 laminated iron core, 10s slot, 10t pole tooth part, 30 windings, 40 insulation sheet.

Claims (4)

鋼板が積層されると共に、複数のスロットと該スロット間に極歯部とを有する積層鉄心と、
中性点から連続した相入力までの電線を前記極歯部に整列巻で巻回すると共に、ｎ相を有する少なくとも第1各相巻線、第２各相巻線と、
該第1各相巻線、第２各相巻線とを有する巻線部と、
該巻線部と前記積層鉄心とを絶縁する絶縁部とを備え、
一つの前記スロットに前記第１、第２各相巻線を収納すると共に、前記第１各相巻線と前記第２各相巻線との最も近い側に前記相入力が接続され、前記極歯部に最も近い側に前記中性点が接続された、
ことを特徴とする電動機の固定子。 A steel sheet is laminated, and a laminated iron core having a plurality of slots and pole teeth between the slots,
Winding an electric wire from a neutral point to a continuous phase input around the pole tooth portion with an aligned winding, and at least a first phase winding having a n phase, a second phase winding,
A winding portion having the first phase winding and the second phase winding;
An insulating portion that insulates the winding portion and the laminated iron core;
The first and second phase windings are housed in one of the slots, and the phase input is connected to the closest side of the first phase winding and the second phase winding, and the pole The neutral point is connected to the side closest to the tooth,
An electric motor stator characterized by the above. 前記第１、第２各相巻線は、前記極歯部に最も近い側の側面に沿って前記電線が巻回された第1層を形成してあり、前記第1層の上に前記中性点から前記相入力側の方向に前記電線が巻回された第２層とを有する、
ことを特徴とする請求項１に記載の電動機の固定子。 Each of the first and second phase windings forms a first layer in which the electric wire is wound along a side surface closest to the pole tooth portion, and the middle layer is formed on the first layer. A second layer around which the electric wire is wound in the direction from the sex point to the phase input side,
The stator for an electric motor according to claim 1. 前記第1各相巻線と前記第２各相巻線との間に介在させた絶縁部材を、
備えたことを特徴とする請求項１又は２に記載の電動機の固定子。 An insulating member interposed between the first phase winding and the second phase winding;
The stator of the electric motor according to claim 1, wherein the stator is provided. 鋼板が積層されると共に、複数のスロットと該スロット間に極歯部とを有する積層鉄心と、前記極歯部に中性点から連続した相入力まで電線を整列巻で巻回すると共に、ｎ相を有する少なくとも第1各相巻線、第２各相巻線と、該第1各相巻線、第２各相巻線とを有する巻線部と、該巻線部と前記積層鉄心とを絶縁する絶縁部とを備え、
一つの前記スロットに前記第１、第２各相巻線を収納すると共に、前記第１各相巻線と前記第２各相巻線との最も近い側に前記相入力を接続し、前記極歯部に最も近い側に前記中性点を接続する電動機の固定子の製造方法であって、
前記極歯部に最も近い側の側面に沿って第１速度で前記電線を巻回して第1層を形成した後、前記第１速度よりも高い第２速度により前記第1層の上に前記中性点から前記相入力側に前記電線を巻回して第２層を形成する、
ことを特徴とする電動機の固定子の製造方法。 A steel sheet is laminated, a laminated iron core having a plurality of slots and pole teeth between the slots, an electric wire is wound on the pole teeth from a neutral point to a continuous phase input by aligned winding, and n A winding portion having at least a first phase winding, a second phase winding, a first phase winding, and a second phase winding having a phase; the winding portion and the laminated core; And an insulating part for insulating the
The first and second phase windings are housed in one slot, and the phase input is connected to the closest side of the first phase winding and the second phase winding, and the poles A method of manufacturing a stator of an electric motor that connects the neutral point to a side closest to a tooth part,
The wire is wound at a first speed along the side surface closest to the pole tooth portion to form a first layer, and then the second layer is higher than the first speed on the first layer by the second speed. Winding the wire from the neutral point to the phase input side to form a second layer;
The manufacturing method of the stator of the electric motor characterized by the above-mentioned.
JP2004043000A 2004-02-19 2004-02-19 Electric motor stator Expired - Lifetime JP4485818B2 (en)

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Publication number Priority date Publication date Assignee Title
KR100845852B1 (en) 2006-12-01 2008-07-14 엘지전자 주식회사 Motor
KR100845853B1 (en) 2006-12-01 2008-07-14 엘지전자 주식회사 Motor
JP2008223621A (en) * 2007-03-13 2008-09-25 Mitsubishi Electric Corp Compressor and refrigeration cycle apparatus
US7834496B2 (en) 2006-12-01 2010-11-16 Lg Electronics Inc. Motor
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JPH0993887A (en) * 1995-04-10 1997-04-04 Switched Reluctance Drives Ltd Method and device for reducing winding fault in switched reluctance machine
JP2000014066A (en) * 1998-06-19 2000-01-14 Toyota Motor Corp Electric rotating machine and rotating machine coil
JP2002119025A (en) * 2000-10-05 2002-04-19 Taiyo Electric Mfg Co Ltd Winding method and apparatus for rotor, and the same rotor

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JPH0993887A (en) * 1995-04-10 1997-04-04 Switched Reluctance Drives Ltd Method and device for reducing winding fault in switched reluctance machine
JPH0923600A (en) * 1995-07-06 1997-01-21 Matsushita Electric Ind Co Ltd Stator of motor
JP2000014066A (en) * 1998-06-19 2000-01-14 Toyota Motor Corp Electric rotating machine and rotating machine coil
JP2002119025A (en) * 2000-10-05 2002-04-19 Taiyo Electric Mfg Co Ltd Winding method and apparatus for rotor, and the same rotor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100845852B1 (en) 2006-12-01 2008-07-14 엘지전자 주식회사 Motor
KR100845853B1 (en) 2006-12-01 2008-07-14 엘지전자 주식회사 Motor
US7834496B2 (en) 2006-12-01 2010-11-16 Lg Electronics Inc. Motor
US8063524B2 (en) 2006-12-01 2011-11-22 Lg Electronics Inc. Washing machine motor having insulator accommodating aluminum wire windings
JP2008223621A (en) * 2007-03-13 2008-09-25 Mitsubishi Electric Corp Compressor and refrigeration cycle apparatus
US7956501B2 (en) 2007-10-30 2011-06-07 Lg Electronics Inc. Motor and washing machine using the same

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