JP2005348552A - Stator structure of axial gap rotating electric machine - Google Patents

Stator structure of axial gap rotating electric machine Download PDF

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JP2005348552A
JP2005348552A JP2004167047A JP2004167047A JP2005348552A JP 2005348552 A JP2005348552 A JP 2005348552A JP 2004167047 A JP2004167047 A JP 2004167047A JP 2004167047 A JP2004167047 A JP 2004167047A JP 2005348552 A JP2005348552 A JP 2005348552A
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core
axial gap
stator structure
gap type
rotating electrical
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Yusuke Nakayama
裕介 中山
Yutaro Kaneko
雄太郎 金子
Masaru Owada
優 大和田
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a stator structure of an axial gap rotating electric machine which can raise a torque by increasing the occupying area in a plane perpendicular to the rotary shaft of the rotary electric machine of a core as much as possible. <P>SOLUTION: The stator structure of the axial gap type rotary electric machine includes a stator 4 in which a coil 3 is wound on a core 1 through an insulator 2 and a rotor arranged along the rotary shaft. The core 1 is constituted by combining a plurality of types of blocks 5, 6 of a rectangular parallelepiped shape obtained by laminating magnetic steel sheets. The circumferential length of the core is lengthened at the outer peripheral side from at least the innermost peripheral side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、回転軸に沿ってステータとロータとが対向して配置されるアキシャルギャップ型回転電機のステータ構造に関するものである。   The present invention relates to a stator structure of an axial gap type rotating electrical machine in which a stator and a rotor are arranged to face each other along a rotation axis.

一般に、回転軸に沿ってステータとディスク状のロータとが対向して配置されるアキシャルギャップ型回転電機においては、特許文献１に記載されているように、例えば図９に示すごとく、直方体状のコア５１を周方向に複数個等間隔に配設して、そのコア５１の周りにインシュレータ５２を介してコイル５３を巻装して、ステータ５４を構成している。
特開２００３−２２７７号公報 In general, in an axial gap type rotating electrical machine in which a stator and a disk-shaped rotor are arranged so as to face each other along a rotation axis, as shown in Patent Document 1, for example, as shown in FIG. A plurality of cores 51 are arranged at equal intervals in the circumferential direction, and a coil 53 is wound around the core 51 via an insulator 52 to constitute a stator 54.
JP 2003-2277 A

ところがこのような形態のステータの構造では、隣接するコアの間の隙間５５の周方向長さは回転電機の半径方向外側に行くほど広くなるため、その分、磁束の通路となるコア５１の回転軸に垂直な平面内における占有面積が小さくなるとともに、回転電機のトルクに寄与しない部分の面積が増えて、トルクを高めるにあたり不利になるという問題点があった。   However, in the stator structure having such a configuration, the circumferential length of the gap 55 between the adjacent cores becomes wider toward the outer side in the radial direction of the rotating electrical machine. As the occupied area in the plane perpendicular to the axis is reduced, the area of the portion not contributing to the torque of the rotating electrical machine is increased, which is disadvantageous in increasing the torque.

本発明は上述したところの課題を解決することを目的とするものであり、その目的は、コアの回転電機の回転軸に垂直な平面内における占有面積をなるべく大きくして、トルクを高めることができるアキシャルギャップ型回転電機のステータ構造を提供することにある。   The object of the present invention is to solve the above-described problems. The purpose of the present invention is to increase the occupied area in a plane perpendicular to the rotation axis of the rotating electrical machine of the core as much as possible to increase the torque. Another object of the present invention is to provide a stator structure for an axial gap type rotating electrical machine.

請求項１に係るアキシャルギャップ型回転電機のロータ構造は、コアにインシュレータを介してコイルを巻装してなるステータとロータとが回転軸に沿って対向して配置されるアキシャルギャップ型回転電機のステータ構造において、
前記コアを、電磁鋼板を積層してなる直方体状の複数種類のブロックを組み合わせて構成して、コアの周方向長さを、少なくとも最内周側よりも外周側にて長くしてなることを特徴とする。 The rotor structure of an axial gap type rotating electrical machine according to claim 1 is an axial gap type rotating electrical machine in which a stator and a rotor, each having a coil wound around a core via an insulator, are arranged facing each other along a rotation axis. In the stator structure,
The core is configured by combining a plurality of types of rectangular parallelepiped blocks formed by laminating electromagnetic steel plates, and the circumferential length of the core is at least longer on the outer peripheral side than on the innermost peripheral side. Features.

請求項１に係るアキシャルギャップ型回転電機のステータ構造によれば、コアを、電磁鋼板を積層してなる複数種類のブロックを組み合わせて、コアの周方向長さを、少なくとも最内周側よりも外周側にて長くすることにより、回転電機の中心軸に垂直な平面内において、隣り合うコア間の隙間が外周側に行くほど大きくなることを防止して、コアの占有面積を、なるべく大きくすることができ、これにより、トルクを有利に向上することができる。   According to the stator structure of the axial gap type rotating electrical machine according to claim 1, the core is combined with a plurality of types of blocks formed by laminating electromagnetic steel sheets, and the circumferential length of the core is at least more than the innermost circumferential side. By increasing the length on the outer peripheral side, the gap between adjacent cores is prevented from becoming larger toward the outer peripheral side in the plane perpendicular to the central axis of the rotating electrical machine, and the occupied area of the core is increased as much as possible. This can advantageously improve the torque.

以下、本発明の実施の形態を図面に基づいて説明する。
図１は本発明に係るアキシャルギャップ型回転電機のステータ構造の一実施形態を示す略式断面図である。
このアキシャルギャップ型回転電機のステータ構造は、コア１にインシュレータ２を介してコイル３を巻装してなるステータ４とディスク状のロータとが回転軸に沿って対向して配置されるアキシャルギャップ型回転電機のステータ構造において、
コア３を、長方形の電磁鋼板を積層してなる直方体状の複数種類のブロック、例えば図１（ａ）に示す回転電機の周方向に長いブロック５と、周方向に短く半径方向に長いブロック６を組み合わせて構成して、コアの周方向長さを、少なくとも最内周側よりも外周側において長くしてなることを特徴とする。（請求項１に相当）
これによれば、隣り合うコア間に生じる隙間をなるべく小さくして、回転軸に垂直な平面内におけるコアの占有面積をなるべく増やして、トルクを向上することができる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic sectional view showing an embodiment of a stator structure of an axial gap type rotating electrical machine according to the present invention.
The stator structure of this axial gap type rotating electrical machine is an axial gap type in which a stator 4 in which a coil 3 is wound around a core 1 via an insulator 2 and a disk-shaped rotor are arranged to face each other along a rotation axis. In the stator structure of a rotating electrical machine,
A plurality of types of rectangular parallelepiped blocks formed by laminating rectangular electromagnetic steel sheets, for example, a block 5 long in the circumferential direction of the rotating electrical machine shown in FIG. 1A and a block 6 short in the circumferential direction and long in the radial direction. And the length in the circumferential direction of the core is longer at least on the outer peripheral side than on the innermost peripheral side. (Equivalent to claim 1)
According to this, it is possible to improve the torque by reducing the gap generated between the adjacent cores as much as possible and increasing the occupied area of the core in the plane perpendicular to the rotation axis as much as possible.

図１（ａ）に示す形態では、二つのブロックを組み合わせて、周方向長さを二段階に異ならせたコアを構成しているが、図１（ｂ）に示すように、周方向長さを漸次異ならせた、三つのブロック７、８、９を組み合わせてコアを構成して、コアの周方向長さを、内周側から外周側に向けて三段階に長くすることもできる。これによれば、図１（ａ）に示す形態のコアに比べて、隣り合うコアの隙間が、外周側に向かうにしたがって拡大してしまうことを防止して、さらに効果的にコアの占有面積を増やして、トルクをより有利に向上することができる。   In the form shown in FIG. 1 (a), two cores are combined to form a core having different circumferential lengths in two stages. However, as shown in FIG. It is also possible to form a core by combining three blocks 7, 8, and 9 that are gradually different from each other, and to increase the circumferential length of the core in three stages from the inner peripheral side toward the outer peripheral side. According to this, compared with the core of the form shown in FIG. 1A, the gap between adjacent cores is prevented from expanding toward the outer peripheral side, and more effectively the area occupied by the core. The torque can be improved more advantageously.

さらに、図１（ｃ）に示す形態のように、周方向長さを漸次異ならせた、四つのブロック１０、１１、１２、１３を組み合わせてコアを構成して、コアの周方向長さを内周側から外周側に向けて四段階に長くすることもできる。
これによれば、とくには、回転軸に垂直な平面内において、外周側のスペースをさらに有効に活用して、コアの占有面積を大きくしてトルクを向上することができる。
ここでは、コアの周方向長さを二段階〜四段階に長くする形態を示したが、コアの占有面積を高めるために、より多段階の構成とすることも可能である。 Further, as shown in FIG. 1 (c), the core is configured by combining four blocks 10, 11, 12, and 13 having gradually different circumferential lengths, and the circumferential length of the core is increased. The length can be increased in four steps from the inner periphery side toward the outer periphery side.
According to this, in particular, in the plane perpendicular to the rotation axis, the space on the outer peripheral side can be more effectively utilized to increase the occupied area of the core and improve the torque.
Here, the configuration in which the length in the circumferential direction of the core is increased to two to four stages is shown. However, in order to increase the occupied area of the core, it is possible to adopt a multi-stage configuration.

また、図１（ｄ）に示す形態のように、半径方向に長いブロック１４の半径方向外側部分の両側に、周方向長さの短い一対のブロック１５を配してＴ字状のコアを構成することもできる。
あるいは、図１（ｅ）に示す形態のように、周方向に長いブロック１６の外周側に、半径方向長さの短いブロック１７を、内周側にブロック１８を配して、十字状のコアを構成することもできる。
図１（ｄ）および図１（ｅ）に示す形態のコアによっても、コアの占有面積を大きくしてトルクを向上することができる。
ここで電磁鋼板としては、表面に無機質の絶縁被膜を施した薄いケイ素鋼板を用いることが好ましい。 In addition, as shown in FIG. 1D, a pair of blocks 15 having a short circumferential length are arranged on both sides of the radially outer portion of the block 14 that is long in the radial direction to form a T-shaped core. You can also
Alternatively, as shown in FIG. 1 (e), a block 17 having a short radial length is arranged on the outer peripheral side of the block 16 that is long in the circumferential direction, and a block 18 is arranged on the inner peripheral side, thereby forming a cross-shaped core. Can also be configured.
Also with the core of the form shown in FIG. 1D and FIG. 1E, the occupied area of the core can be increased to improve the torque.
Here, as the electromagnetic steel plate, it is preferable to use a thin silicon steel plate having an inorganic insulating coating on the surface.

図２は本発明に係るアキシャルギャップ型回転電機のステータ構造の他の実施形態を示す略式断面図である。
コアを構成するブロックの形状は、図１に示すものと同様であるため説明は割愛する。
ここでは、インシュレータ２の外周面形状をエッジ部のない滑らかな形状として、（請求項２に相当）インシュレータ２とコア１との間に、樹脂等からなる非磁性体１９を充填している。（請求項３に相当） FIG. 2 is a schematic sectional view showing another embodiment of the stator structure of the axial gap type rotating electrical machine according to the present invention.
Since the shape of the block constituting the core is the same as that shown in FIG. 1, the description thereof is omitted.
Here, the outer peripheral surface shape of the insulator 2 is made smooth with no edge portion (corresponding to claim 2), and the nonmagnetic material 19 made of resin or the like is filled between the insulator 2 and the core 1. (Equivalent to claim 3)

インシュレータ２の外周面形状をエッジ部のない滑らかな形状とすることにより、特にはインシュレータ２の、コア１の角部の外周側に位置する部分が、コイル３の被覆を破損してしまうことを防止することができる。
また、インシュレータ２とコア１との間に非磁性体を充填することにより、コアとインシュレータとの間に相互に支持する力を発生させて、ステータ全体の剛性を高めることができる。 By making the outer peripheral surface shape of the insulator 2 a smooth shape without an edge portion, the portion of the insulator 2 located on the outer peripheral side of the corner portion of the core 1 may damage the coating of the coil 3. Can be prevented.
Further, by filling a non-magnetic material between the insulator 2 and the core 1, a mutual supporting force can be generated between the core and the insulator, and the rigidity of the entire stator can be increased.

さらに好ましくは、インシュレータ２とコア３との間に、前述した非磁性体１９に換えて、圧粉コア用磁粉２０を充填する。（請求項４に相当）
これによれば、コアとインシュレータとの間に相互に支持する力を発生させて、ステータ全体の剛性を高めることができるとともに、充填した圧粉コア用磁粉２０がコアと同様に磁束を高める働きをするので、トルクに寄与する部分の占有面積を増やして、トルクをさらに向上することができる。 More preferably, the dust core magnetic powder 20 is filled between the insulator 2 and the core 3 instead of the nonmagnetic material 19 described above. (Equivalent to claim 4)
According to this, the force which mutually supports between the core and the insulator can be generated to increase the rigidity of the whole stator, and the filled magnetic powder 20 for the dust core can increase the magnetic flux similarly to the core. Therefore, the area occupied by the portion contributing to the torque can be increased to further improve the torque.

図３は、本発明に係るアキシャルギャップ型回転電機のステータ構造の、コアを構成するブロックの接合態様を示す模式斜視図である。
ここでは、図１（ｄ）および図２（ｄ）で示した形態のコアを示す。
電磁鋼板を重ねて構成される各々のブロック１４とブロック１５の接合面に、図示しない接着剤を塗布して、各々の接合面を図示のごとく接合して、コア１を構成する。もちろん接着剤を塗布することに換えて、溶接やカシメによる接合とすることも可能である。 FIG. 3 is a schematic perspective view showing a joining mode of blocks constituting the core in the stator structure of the axial gap type rotating electric machine according to the present invention.
Here, the core of the form shown in FIG. 1 (d) and FIG. 2 (d) is shown.
The core 1 is configured by applying an adhesive (not shown) to the joint surfaces of the blocks 14 and 15 formed by stacking electromagnetic steel plates and joining the joint surfaces as illustrated. Of course, instead of applying an adhesive, joining by welding or caulking is also possible.

図４は、本発明に係るアキシャルギャップ型回転電機のステータ構造の、コアを構成するブロックの接合態様を示す模式斜視図である。
電磁鋼板を重ねて構成される各々のブロック２１とブロック２２およびブロック２３の接合面に、図示しない接着剤を塗布して、各々の接合面を図示のごとく接合して、コア１を構成する。ここでも接着剤を塗布することに換えて、溶接やカシメによる接合とすることが可能である。 FIG. 4 is a schematic perspective view showing a joining mode of blocks constituting the core in the stator structure of the axial gap type rotating electric machine according to the present invention.
The core 1 is configured by applying an adhesive (not shown) to the joint surfaces of the blocks 21, 22, and 23, which are formed by stacking electromagnetic steel plates, and joining the joint surfaces as illustrated. Here, instead of applying the adhesive, joining by welding or caulking is possible.

ここで接着剤の種類は特に限定するものではないが、例えば、アクリル樹脂系接着剤、ウレタン樹脂系接着剤、エポキシ樹脂系接着剤、フェノール樹脂系接着剤、ナイロン樹脂系接着剤、合成ゴム系接着剤、塩化ビニル樹脂系接着剤、およびこれらの接着剤を組み合わせた複合型接着剤などを使用することが可能である。   Here, the type of adhesive is not particularly limited. For example, acrylic resin adhesive, urethane resin adhesive, epoxy resin adhesive, phenol resin adhesive, nylon resin adhesive, synthetic rubber adhesive It is possible to use an adhesive, a vinyl chloride resin-based adhesive, a composite adhesive combining these adhesives, and the like.

図５は本発明に係るアキシャルギャップ型回転電機のステータ構造の一実施形態を示す略式断面図である。
このアキシャルギャップ型回転電機のステータ構造は、コア１にインシュレータ２を介してコイル３を巻装してなるステータとディスク状のロータとが回転軸に沿って対向して配置されるアキシャルギャップ型回転電機のステータ構造において、
前記コア３を、電磁鋼板を積層してなる直方体状の複数種類のブロック、例えば図５（ａ）に示す回転電機の周方向に長いブロック２３と、周方向に短く半径方向に長いブロック２４を組み合わせて構成して、隣接するブロック２３、２４のそれぞれに、相互に雌雄嵌合するここでは図示しない嵌合部を設けている。（請求項５に相当）
また、インシュレータ２の外周面形状を、エッジ部のない滑らかな形状として、（請求項２に相当）インシュレータ２とコア１との間に、樹脂等からなる非磁性体２５を充填している。（請求項３に相当）
あるいは、インシュレータ２とコア３との間に、非磁性体２５に換えて、圧粉コア用磁粉２６を充填することもできる。（請求項４に相当） FIG. 5 is a schematic sectional view showing an embodiment of a stator structure of an axial gap type rotating electrical machine according to the present invention.
The stator structure of this axial gap type rotating electric machine has an axial gap type rotation in which a stator formed by winding a coil 3 around a core 1 via an insulator 2 and a disk-shaped rotor are arranged facing each other along a rotation axis. In the stator structure of an electric machine,
The core 3 includes a plurality of types of rectangular parallelepiped blocks formed by laminating electromagnetic steel plates, for example, a block 23 long in the circumferential direction of the rotating electric machine shown in FIG. 5A and a block 24 short in the circumferential direction and long in the radial direction. Each of the adjacent blocks 23 and 24, which are configured in combination, is provided with a fitting portion (not shown) for male-female fitting with each other. (Equivalent to claim 5)
Further, the outer peripheral surface shape of the insulator 2 is made smooth with no edge portion (corresponding to claim 2), and a nonmagnetic material 25 made of resin or the like is filled between the insulator 2 and the core 1. (Equivalent to claim 3)
Alternatively, the dust core magnetic powder 26 may be filled between the insulator 2 and the core 3 instead of the non-magnetic material 25. (Equivalent to claim 4)

隣接するブロック２３、２４のそれぞれに、相互に雌雄嵌合する嵌合部を設けて、それらを雌雄嵌合して、十字状のコア１を構成することにより、前述したように、接着剤によりブロック相互間を接合して構成することに比べて、コア１の剛性をより高めることができる。
請求項１〜４に相当する構成による作用効果は前述しているので割愛する。
また、コア１は、図５（ａ）に示す形態のもののほか、図５（ｂ）に示すように、周方向長さの長いブロック２７と半径方向長さの長いブロック２８を組み合わせて、Ｔ字状としても良いし、図５（ｃ）に示すように、半径方向長さの長いブロック２９と、半径方向長さの短い一対のブロック３０とを組み合わせて、これもＴ字状としても良い。 Each of the adjacent blocks 23 and 24 is provided with a fitting portion for mating with each other and mating with each other to form the cross-shaped core 1. The rigidity of the core 1 can be further increased as compared with the case where the blocks are joined to each other.
Since the effect by the structure equivalent to Claims 1-4 is mentioned above, it omits.
Further, in addition to the form shown in FIG. 5A, the core 1 includes a block 27 having a long circumferential length and a block 28 having a long radial length, as shown in FIG. As shown in FIG. 5C, a block 29 having a long radial length and a pair of blocks 30 having a short radial length may be combined to form a T shape. .

図６〜８は、本発明に係るアキシャルギャップ型回転電機のステータ構造の、コアを構成するブロックの接合態様を示す模式斜視図である。
図６では、図５（ａ）に示す形態のコア１の接合態様を示しており、電磁鋼板を積層してなるブロック２３には雄側の嵌合部２３ａを設け、ブロック２４には雌側の嵌合部２４ａを設けて、嵌合部２３ａを嵌合部２４ａに嵌合して、ブロック２３およびブロック２４を接合し、コア１を構成している。 FIGS. 6-8 is a schematic perspective view which shows the joining aspect of the block which comprises a core of the stator structure of the axial gap type rotary electric machine which concerns on this invention.
FIG. 6 shows a joining mode of the core 1 in the form shown in FIG. 5A. A male-side fitting portion 23a is provided in a block 23 formed by laminating electromagnetic steel sheets, and a female side is provided in a block 24. The fitting part 24a is provided, the fitting part 23a is fitted into the fitting part 24a, the block 23 and the block 24 are joined, and the core 1 is comprised.

図７では、図５（ｂ）に示す形態のコア１の接合態様を示しており、電磁鋼板を積層してなるブロック２７には雌側の凹状の嵌合部２７ａを設け、ブロック２８には雄側の凸状の嵌合部２８ａを設けて、嵌合部２８ａを嵌合部２７ａに挿入嵌合して、ブロック２７およびブロック２８を接合し、コア１を構成している。   FIG. 7 shows a joining mode of the core 1 having the form shown in FIG. 5B. The block 27 formed by laminating electromagnetic steel plates is provided with a female-side concave fitting portion 27a, and the block 28 is provided with a block 28. A male-side convex fitting portion 28a is provided, the fitting portion 28a is inserted and fitted into the fitting portion 27a, and the block 27 and the block 28 are joined to constitute the core 1.

図８では、図５（ｃ）に示す形態のコア１の接合態様を示しており、電磁鋼板を積層してなるブロック２９には雌側の凹状の嵌合部２７ａを設け、ブロック３０には雄側の凸状の嵌合部３０ａを設けて、嵌合部３０ａを嵌合部２９ａに、回転軸に平行な方向から挿入嵌合して、ブロック２９およびブロック３０を接合し、図８（ｄ）に示すようなコア１を構成している。   FIG. 8 shows a joining mode of the core 1 in the form shown in FIG. 5C. The block 29 formed by laminating electromagnetic steel plates is provided with a female-side concave fitting portion 27a, and the block 30 is provided with a block 30. A male-side convex fitting portion 30a is provided, and the fitting portion 30a is inserted and fitted into the fitting portion 29a from a direction parallel to the rotation axis, and the block 29 and the block 30 are joined together. A core 1 as shown in d) is formed.

なお、嵌合部２９ａおよび３０ａの形態は種々の形態をとることが可能であり、たとえば、回転軸に垂直な平面内における形状を、図８（ａ）に示すようなＴ字状、図８（ｂ）（ｃ）に示す平行四辺形状とすることが可能である。なお、後者の形態によれば、回転軸に平行な方向から挿入嵌合することに加えて、平行四辺形状の嵌合部２９ａの斜辺に沿った方向に、ブロック２９および３０を相互に近接変位させて、嵌合部２９ａおよび３０ａを嵌合することも可能である。   The fitting portions 29a and 30a can take various forms. For example, the shape in a plane perpendicular to the rotation axis is a T-shape as shown in FIG. (B) The parallelogram shown in (c) can be formed. According to the latter form, in addition to the insertion fitting from the direction parallel to the rotation axis, the blocks 29 and 30 are displaced close to each other in the direction along the oblique side of the parallelogram-shaped fitting portion 29a. Thus, the fitting portions 29a and 30a can be fitted.

上述したステータ構造を有するアキシャルギャップ型回転電機においては、コアは周上複数箇所に設けられ、図示しないインバータにより励磁されたコイルにより、周方向に回転磁界が形成されると、周方向に交互に極性が異なる複数の永久磁石が埋設されたディスク状のロータは回転磁界に吸引・反発されて同期速度で回転する。   In the axial gap type rotating electrical machine having the stator structure described above, the core is provided at a plurality of locations on the circumference, and when a rotating magnetic field is formed in the circumferential direction by a coil excited by an inverter (not shown), the core is alternately arranged in the circumferential direction. A disk-shaped rotor in which a plurality of permanent magnets having different polarities are embedded is attracted and repelled by a rotating magnetic field and rotates at a synchronous speed.

なお、本発明は、上記実施の形態にのみ限定されるものではなく、幾多の変形または変更が可能である。   In addition, this invention is not limited only to the said embodiment, Many deformation | transformation or a change is possible.

本発明は、アキシャルギャップ型回転電機のステータに用いて好適なものである。   The present invention is suitable for use in a stator of an axial gap type rotating electrical machine.

本発明に係るアキシャルギャップ型回転電機のステータ構造の一実施形態を示す、略式断面図である。1 is a schematic cross-sectional view showing an embodiment of a stator structure of an axial gap type rotating electrical machine according to the present invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造の他の実施形態を示す略式断面図である。It is a schematic sectional drawing which shows other embodiment of the stator structure of the axial gap type rotary electric machine which concerns on this invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造の、ブロックの接合態様を示す略式矢視図である。It is a schematic arrow line view which shows the joining aspect of a block of the stator structure of the axial gap type rotary electric machine which concerns on this invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造の、ブロックの他の接合態様を示す略式矢視図である。FIG. 7 is a schematic arrow view showing another joining mode of blocks in the stator structure of the axial gap type rotating electric machine according to the present invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造のさらに他の実施形態を示す略式断面図である。It is a schematic sectional drawing which shows other embodiment of the stator structure of the axial gap type rotary electric machine which concerns on this invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造の、ブロックの接合態様を示す略式矢視図である。It is a schematic arrow line view which shows the joining aspect of a block of the stator structure of the axial gap type rotary electric machine which concerns on this invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造の、ブロックの接合態様を示す略式矢視図である。It is a schematic arrow line view which shows the joining aspect of a block of the stator structure of the axial gap type rotary electric machine which concerns on this invention. 本発明に係るアキシャルギャップ型回転電機のステータ構造の、ブロックの接合態様を示す略式矢視図である。It is a schematic arrow line view which shows the joining aspect of a block of the stator structure of the axial gap type rotary electric machine which concerns on this invention. 従来のアキシャルギャップ型回転電機のステータ構造を示す略式断面図である。It is a schematic sectional drawing which shows the stator structure of the conventional axial gap type rotary electric machine.

符号の説明Explanation of symbols

１ コア
２ インシュレータ
３ コイル
４ ステータ
５〜１８ ブロック
１９ 非磁性体
２０ 圧粉コア用磁粉
２１〜２４ ブロック
２５ 非磁性体
２６ 圧粉コア用磁粉
２７〜３０ ブロック
５１ コア
５２ インシュレータ
５３ コイル
５４ ステータ
５５ 隙間 DESCRIPTION OF SYMBOLS 1 Core 2 Insulator 3 Coil 4 Stator 5-18 Block 19 Nonmagnetic body 20 Powder powder for magnetic core 21-24 Block 25 Nonmagnetic body 26 Powder powder for powder core 27-30 Block 51 Core 52 Insulator 53 Coil 54 Stator 55 Gap

Claims (5)

コアにインシュレータを介してコイルを巻装してなるステータとロータとが回転軸に沿って対向して配置されるアキシャルギャップ型回転電機のステータ構造において、
前記コアを、電磁鋼板を積層してなる直方体状の複数種類のブロックを組み合わせて構成して、コアの周方向長さを、少なくとも最内周側よりも外周側にて長くしてなるアキシャルギャップ型回転電機のステータ構造。 In the stator structure of an axial gap type rotating electrical machine in which a stator and a rotor formed by winding a coil through an insulator on a core are arranged to face each other along a rotation axis,
An axial gap in which the core is formed by combining a plurality of types of rectangular parallelepiped blocks formed by laminating electromagnetic steel sheets, and the circumferential length of the core is longer at least on the outer peripheral side than on the innermost peripheral side. The stator structure of a rotating electrical machine. 前記インシュレータの外周面形状をエッジ部のない滑らかな形状としてなる請求項１に記載のアキシャルギャップ型回転電機のステータ構造。   The stator structure of an axial gap type rotating electrical machine according to claim 1, wherein the outer peripheral surface of the insulator has a smooth shape without an edge portion. 前記インシュレータとコアとの間に非磁性体を充填してなる請求項１もしくは２に記載のアキシャルギャップ型回転電機のステータ構造。   The stator structure of an axial gap type rotating electrical machine according to claim 1 or 2, wherein a nonmagnetic material is filled between the insulator and the core. 前記インシュレータとコアとの間に圧粉コア用磁粉を充填してなる請求項１もしくは２に記載のアキシャルギャップ型回転電機のステータ構造。   The stator structure of an axial gap type rotating electrical machine according to claim 1 or 2, wherein magnetic powder for a dust core is filled between the insulator and the core. 隣接するブロックのそれぞれに、相互に雌雄嵌合する嵌合部を設けてなる請求項１〜４のいずれかに記載のアキシャルギャップ型回転電機のステータ構造。   The stator structure of an axial gap type rotating electrical machine according to any one of claims 1 to 4, wherein each adjacent block is provided with a fitting portion for male-female fitting.
JP2004167047A 2004-06-04 2004-06-04 Stator structure of axial gap rotating electric machine Pending JP2005348552A (en)

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