JP2017189003A - Rotary electric machine - Google Patents

Rotary electric machine Download PDF

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JP2017189003A
JP2017189003A JP2016075668A JP2016075668A JP2017189003A JP 2017189003 A JP2017189003 A JP 2017189003A JP 2016075668 A JP2016075668 A JP 2016075668A JP 2016075668 A JP2016075668 A JP 2016075668A JP 2017189003 A JP2017189003 A JP 2017189003A
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rotor core
end side
holding plate
divided
rotor
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伊藤　琢
Migaku Ito
琢 伊藤
馬場　雄一郎
Yuichiro Baba
雄一郎 馬場
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Hitachi Astemo Ltd
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Hitachi Automotive Systems Ltd
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  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric machine capable of improving power performance by increasing a length of a rotor core even when decreasing a length of a shaft part fixing the rotor core.SOLUTION: A rotor 2 of a rotary electric machine 1 includes: pressing plates 5A, 5B; a rotor core 4 comprised of a plurality of divided rotor cores 41-45 divided in the lamination direction. The rotor core includes: one-end side stationary members 80, 71 each having a shaft part 81 penetrating through a one-end side pressing plate 5A and the divided rotor core 41 adjacent to the pressing plate 5A in the lamination direction; the other-end side stationary members 80, 71 each having a shaft part 81 penetrating through the other-end side pressing plate 5B and the divided rotor core 42 adjacent to the other-end side pressing plate 5B in the lamination direction.SELECTED DRAWING: Figure 4

Description

本発明は、回転電機に関する。   The present invention relates to a rotating electrical machine.

回転電機は、ケーシング内に固定子と、回転子と、巻線とを収納している。回転子は、永久磁石が収納された回転子鉄心を回転軸に焼嵌めまたは圧入して構成されている。永久磁石は、接着剤により回転子鉄心に固定されている。回転子鉄心の軸方向の両端には、ステンレス等の非磁性材により形成された端板が配置されている。端板は、接着剤の漏れ防止等の機能を有する。回転子鉄心と端板には、ボルトが貫通され、ボルトの先端側にナットが締結される。これにより、回転子鉄心を端板により挟んで固定している（例えば、特許文献１の図３参照）。   The rotating electrical machine houses a stator, a rotor, and a winding in a casing. The rotor is configured by shrink fitting or press-fitting a rotor iron core, in which a permanent magnet is housed, onto a rotating shaft. The permanent magnet is fixed to the rotor core with an adhesive. End plates formed of a nonmagnetic material such as stainless steel are disposed at both ends of the rotor core in the axial direction. The end plate has functions such as prevention of adhesive leakage. Bolts are passed through the rotor core and the end plate, and nuts are fastened to the front ends of the bolts. Thereby, the rotor iron core is sandwiched and fixed by the end plates (see, for example, FIG. 3 of Patent Document 1).

特開２００２−３５４７２２号公報JP 2002-354722 A

特許文献１に記載された回転電機の回転子では、回転子鉄心と端板とを貫通するボルトの長さが長くなる。ボルトには、回転子の遠心力よる曲げ応力が作用する。従って、回転子鉄心の積層方向の長さ、換言すれば、回転軸方向の長さは、ボルトの強度の観点から曲げ応力に耐えられる長さに制限される。しかし、回転子鉄心の回転軸方向の長さが小さくなると、回転電機の動力性能が制限されてしまう。   In the rotor of the rotating electrical machine described in Patent Document 1, the length of the bolt that penetrates the rotor core and the end plate is increased. A bending stress due to the centrifugal force of the rotor acts on the bolt. Therefore, the length of the rotor core in the stacking direction, in other words, the length in the direction of the rotation axis is limited to a length that can withstand bending stress from the viewpoint of the strength of the bolt. However, when the length of the rotor core in the rotation axis direction is reduced, the power performance of the rotating electrical machine is limited.

本発明の一態様によると、回転電機は、固定子と、回転子と、巻線と、前記固定子、前記回転子および前記巻線を収容するケーシングと、を備え、前記回転子は、回転軸と、永久磁石の収納空間を有する複数の電磁鋼板が積層して構成され、前記回転軸に固定される回転子鉄心と、前記回転子鉄心の前記収納空間に収納される磁石と、前記回転子鉄心の積層方向の一端側および他端側に配置される抑え板と、を備え、前記回転子鉄心は、積層方向に分割された複数の分割回転子鉄心により構成され、さらに、前記一端側の前記抑え板と、前記一端側の前記抑え板に隣接する前記分割回転子鉄心とを積層方向に貫通する軸部を有する一端側固定部材と、前記他端側の前記抑え板と、前記他端側の前記抑え板に隣接する前記分割回転子鉄心とを積層方向に貫通する軸部を有する他端側固定部材と、を備える。   According to an aspect of the present invention, a rotating electrical machine includes a stator, a rotor, a winding, and a casing that houses the stator, the rotor, and the winding, and the rotor rotates. A rotor core fixed to the rotating shaft, a magnet stored in the storage space of the rotor core, and the rotation Holding plates disposed on one end side and the other end side in the stacking direction of the core, and the rotor core is composed of a plurality of split rotor cores divided in the stacking direction, and further on the one end side One end side fixing member having a shaft portion penetrating in the stacking direction through the holding rotor plate adjacent to the one end side holding plate, the other end side holding plate, and the other Stacking the split rotor core adjacent to the holding plate on the end side Comprising the other end side fixing member having a shaft extending through the direction.

本発明によれば、回転子鉄心を固定する軸部の長さを小さくしても、回転子鉄心の長さを大きくすることが可能であり、回転電機の動力性能を大きくすることができる。   According to the present invention, even if the length of the shaft portion for fixing the rotor core is reduced, the length of the rotor core can be increased, and the power performance of the rotating electrical machine can be increased.

本発明が適用される回転電機の全体構成を示す第１の実施形態の断面図。BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing of 1st Embodiment which shows the whole structure of the rotary electric machine to which this invention is applied. 図１に図示された回転子の外観斜視図。FIG. 2 is an external perspective view of the rotor illustrated in FIG. 1. 図２に図示された回転子鉄心を構成する電磁鋼板の正面図。The front view of the electromagnetic steel plate which comprises the rotor core shown in figure by FIG. 図２に図示された回転子の一部を破断してその内部を示す斜視図。The perspective view which fractures | ruptures a part of rotor shown in FIG. 2, and shows the inside. （Ａ）は、図２のＶA−ＶA線断面図、（Ｂ）は図２のＶB−ＶB線断面図。(A) is the VA-VA sectional view taken on the line of FIG. 2, (B) is the VB-VB sectional view taken on the line of FIG. 本発明の回転電機に適用される回転子の第２の実施形態を示す断面図。Sectional drawing which shows 2nd Embodiment of the rotor applied to the rotary electric machine of this invention. 本発明の回転電機に適用される回転子の第３の実施形態を示す断面図。Sectional drawing which shows 3rd Embodiment of the rotor applied to the rotary electric machine of this invention.

−第１の実施形態−
図１〜図６を参照して本発明の第１の実施形態を説明する。
図１は、回転電機の第１の実施形態の断面図である。
回転電機１は、図１に示すように、筐体１５内に収容された固定子１３と、回転子２とを備えている。筐体１５は、ハウジング１１と、フロントブラケット１４と、リアブラケット１８とにより構成されている。ハウジング１１には、ウォータージャケット１６が取付けられている。ハウジング１１とウォータージャケット１６とは、回転電機１の冷却水の水路を構成している。 -First embodiment-
A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a cross-sectional view of a first embodiment of a rotating electrical machine.
As shown in FIG. 1, the rotating electrical machine 1 includes a stator 13 and a rotor 2 housed in a housing 15. The housing 15 includes a housing 11, a front bracket 14, and a rear bracket 18. A water jacket 16 is attached to the housing 11. The housing 11 and the water jacket 16 constitute a cooling water channel for the rotating electrical machine 1.

固定子１３は、固定子コア１２を有し、図示はしないが、周方向に複数に分割された分割コアを側部において連結して構成されている。
回転子２は、シャフト３と、シャフト３に焼嵌めまたは圧入（以下、両方の意味を持たせて嵌合ということもある）により固定された回転子鉄心４と、回転子鉄心４の軸方向の両端に設けられた抑え板５Ａ、５Ｂを有する。回転子２の外周面と、固定子１３の固定子コア１２の内周面との間には隙間が設けられている。 The stator 13 includes a stator core 12 and is configured by connecting divided cores that are divided into a plurality in the circumferential direction at the side, although not shown.
The rotor 2 includes a shaft 3, a rotor core 4 fixed to the shaft 3 by shrink fitting or press-fitting (hereinafter sometimes referred to as fitting), and the axial direction of the rotor core 4. There are holding plates 5A and 5B provided at both ends. A gap is provided between the outer peripheral surface of the rotor 2 and the inner peripheral surface of the stator core 12 of the stator 13.

回転子２のシャフト３は、フロントブラケット１４の軸受１７Ａ、リアブラケット１８の軸受１７Ｂにより支承されている。回転子２は、固定子１３内に回転自在に設けられている。   The shaft 3 of the rotor 2 is supported by a bearing 17A of the front bracket 14 and a bearing 17B of the rear bracket 18. The rotor 2 is rotatably provided in the stator 13.

図２は、図１に図示された回転子の外観斜視図であり、図４は、図２に図示された回転子の一部を破断してその内部を示す斜視図である。図５（Ａ）は、図２のＶA−ＶA線断面図であり、図５（Ｂ）は図２のＶB−ＶB線断面図である。
上述したように、回転子２は、シャフト３と、シャフト３に嵌合されて固定され、磁気回路を構成する回転子鉄心４と、回転子鉄心４の軸方向の両端に設けられた抑え板５Ａ、５Ｂを有する。回転子鉄心４は、ケイ素鋼板等の電磁鋼板２０（図３参照）を軸方向に積層した状態で、シャフト３に固定されている。回転子鉄心４は、軸方向に分割された、第１〜第５の５つの分割回転子鉄心４１〜４５により構成されている。各分割回転子鉄心４１〜４５は、それぞれ、複数の電磁鋼板２０を積層した状態で、シャフト３に嵌合されて固定されている。
なお、各分割回転子鉄心４１〜４５の区切り線は、実際には見えないが、図４、図５（Ａ）、（Ｂ）には、理解を容易にする目的で、各分割回転子鉄心４１〜４５の区切り線を図示してある。 2 is an external perspective view of the rotor shown in FIG. 1, and FIG. 4 is a perspective view showing a part of the rotor shown in FIG. 5A is a cross-sectional view taken along line VA-VA in FIG. 2, and FIG. 5B is a cross-sectional view taken along line VB-VB in FIG.
As described above, the rotor 2 is fixed to the shaft 3 by being fitted to the shaft 3, and the rotor core 4 constituting the magnetic circuit, and the holding plates provided at both ends of the rotor core 4 in the axial direction. 5A, 5B. The rotor core 4 is fixed to the shaft 3 in a state where electromagnetic steel plates 20 (see FIG. 3) such as silicon steel plates are laminated in the axial direction. The rotor core 4 is composed of first to fifth divided rotor cores 41 to 45 that are divided in the axial direction. Each of the divided rotor cores 41 to 45 is fitted and fixed to the shaft 3 in a state where a plurality of electromagnetic steel plates 20 are laminated.
In addition, although the dividing line of each division | segmentation rotor core 41-45 is not actually visible, in order to make an understanding easy in FIG.4, FIG.5 (A), (B), each division | segmentation rotor core is shown. The dividing lines 41 to 45 are illustrated.

第１および第２の分割回転子鉄心４１、４２は、それぞれ、一端側の抑え板５Ａ、他端側の抑え板５Ｂに隣接して配置されている。抑え板５Ａ、５Ｂは、ステンレス等の非磁性材により形成されている。第３の分割回転子鉄心４３は、回転子鉄心４の軸方向のほぼ中央に位置している。第４および第５の分割回転子鉄心４４、４５は、それぞれ、第３の分割回転子鉄心４３と第１の分割回転子鉄心４１との間、および第３の分割回転子鉄心４３と第２の分割回転子鉄心４２との間に配置されている。第４、第５の回転子鉄心４４、４５は、その厚さ、すなわち、軸方向の長さが、第１、第２、第３の分割回転子鉄心４１、４２、４３の厚さより薄く形成されている。第４、第５の回転子鉄心４４、４５の厚さは、後述する、ナット７１（図４等参照）の高さより少し厚い程度である。
各分割回転子鉄心４１〜４５は、プレス等により打ち抜きして形成された電磁鋼板２０を積層して構成されている。 The first and second divided rotor cores 41 and 42 are disposed adjacent to the holding plate 5A on one end side and the holding plate 5B on the other end side, respectively. The holding plates 5A and 5B are made of a nonmagnetic material such as stainless steel. The third divided rotor core 43 is located substantially at the center in the axial direction of the rotor core 4. The fourth and fifth split rotor cores 44 and 45 are respectively provided between the third split rotor core 43 and the first split rotor core 41, and between the third split rotor core 43 and the second split rotor core 43. Are arranged between the divided rotor cores 42. The fourth and fifth rotor cores 44 and 45 are formed so that their thickness, that is, the length in the axial direction is thinner than the thickness of the first, second, and third divided rotor cores 41, 42, and 43. Has been. The thicknesses of the fourth and fifth rotor cores 44 and 45 are slightly thicker than the height of a nut 71 (see FIG. 4 and the like) described later.
Each of the divided rotor iron cores 41 to 45 is configured by laminating electromagnetic steel plates 20 formed by stamping with a press or the like.

図３は、図２に図示された回転子鉄心を構成する電磁鋼板の正面図である。図３に図示される電磁鋼板２０は、特に、第１、第２、第４、第５の分割回転子鉄心４１、４２、４４、４５を構成するものとして示されている。
電磁鋼板２０には、中心部に、シャフト３に嵌合されるシャフト用貫通孔２１が形成されている。シャフト用貫通孔２１の外周側には、軸部用貫通孔２２とナット用貫通孔２３が、それぞれ、複数個形成されている。図示の例では、軸部用貫通孔２２とナット用貫通孔２３とは、交互に、４つずつ、等間隔に、すなわち、９０°の間隔で配置されている。しかし、軸部用貫通孔２２とナット用貫通孔２３の員数や配置は、任意に設定することができる。また、電磁鋼板２０には、永久磁石３１が収納される収納空間となる複数の磁石用貫通孔２４が形成されている。永久磁石３１は、接着剤により各電磁鋼板２０の磁石用貫通孔２４に固定される。
なお、電磁鋼板２０の軸部用貫通孔２２は、後述するボルト８０の軸部８１（図４等参照）を遊挿する大きさの円盤形状を有する。また、電磁鋼板２０のナット用貫通孔２３は、ナット７１（図４等参照）と同様に六角形状を有し、ナット７１の回り止めがなされるサイズに形成されている。 FIG. 3 is a front view of the electrical steel sheet constituting the rotor core shown in FIG. The electrical steel sheet 20 illustrated in FIG. 3 is shown as constituting first, second, fourth, and fifth split rotor cores 41, 42, 44, and 45 in particular.
The electromagnetic steel sheet 20 is formed with a shaft through-hole 21 fitted in the shaft 3 at the center. A plurality of shaft through holes 22 and nut through holes 23 are formed on the outer peripheral side of the shaft through hole 21. In the example shown in the figure, the through-holes 22 for the shafts and the through-holes 23 for the nuts are alternately arranged four by four at equal intervals, that is, at intervals of 90 °. However, the number and arrangement of the shaft through hole 22 and the nut through hole 23 can be arbitrarily set. The electromagnetic steel plate 20 is formed with a plurality of through holes 24 for magnets that serve as storage spaces in which the permanent magnets 31 are stored. The permanent magnet 31 is fixed to the magnet through-hole 24 of each electromagnetic steel sheet 20 with an adhesive.
In addition, the through-hole 22 for shaft parts of the electromagnetic steel plate 20 has a disk shape having a size for loosely inserting a shaft part 81 (see FIG. 4 and the like) of a bolt 80 described later. Moreover, the through-hole 23 for nuts of the electromagnetic steel plate 20 has a hexagonal shape like the nut 71 (see FIG. 4 and the like), and is formed in a size that prevents the nut 71 from rotating.

第１、第２、第４、第５の分割回転子鉄心４１、４２、４４、４５は、それぞれ、各電磁鋼板２０のシャフト用貫通孔２１、軸部用貫通孔２２、ナット用貫通孔２３および磁石用貫通孔２４の位置を合わせて積層される。第１の分割回転子鉄心４１の軸部用貫通孔２２と第４の分割回転子鉄心４４のナット用貫通孔２３とは、対向するようにシャフト３に嵌合されている。同様に、第２の分割回転子鉄心４２の軸部用貫通孔２２と第５の分割回転子鉄心４５のナット用貫通孔２３とは、対向するようにシャフト３に嵌合されている。
図示はしないが、第３の分割回転子鉄心４３を構成する電磁鋼板２０には、シャフト用貫通孔２１と磁石用貫通孔２４とが形成され、軸部用貫通孔２２とナット用貫通孔２３とは形成されていない。但し、第３の分割回転子鉄心４３を構成する各電磁鋼板２０も、他の分割回転子鉄心４１、４２、４４、４５を構成する電磁鋼板２０と同様に各貫通孔２１〜２４が形成された部材として、互換性を有するようにしてもよい。 The first, second, fourth, and fifth divided rotor cores 41, 42, 44, and 45 are respectively a shaft through hole 21, a shaft through hole 22, and a nut through hole 23 of each electromagnetic steel sheet 20. Further, the magnet through-holes 24 are laminated so as to be aligned. The shaft through hole 22 of the first divided rotor core 41 and the nut through hole 23 of the fourth divided rotor core 44 are fitted to the shaft 3 so as to face each other. Similarly, the shaft through hole 22 of the second divided rotor core 42 and the nut through hole 23 of the fifth divided rotor core 45 are fitted to the shaft 3 so as to face each other.
Although not shown, the electromagnetic steel plate 20 constituting the third split rotor core 43 is formed with a shaft through hole 21 and a magnet through hole 24, and a shaft through hole 22 and a nut through hole 23. Is not formed. However, each of the electromagnetic steel plates 20 constituting the third divided rotor core 43 is also formed with the through holes 21 to 24 in the same manner as the electromagnetic steel plates 20 constituting the other divided rotor cores 41, 42, 44, 45. The members may be compatible.

回転子鉄心４の各磁石用貫通孔２４に収納される永久磁石３１は、図３に図示されるように、一対の磁石用貫通孔２４の間がｄ軸、隣接する一対の磁石用貫通孔２４の間がｑ軸に設定される。ｄ軸は磁極がつくる磁束の方向（永久磁石の中心軸）であり、ｑ軸は、それと電気的、磁気的に直交する軸（永久磁石間の軸）である。なお、図３では、磁石用貫通孔２４内に配置される永久磁石３１のＳ極、Ｎ極の一部のみを図示する。   As shown in FIG. 3, the permanent magnet 31 housed in each magnet through-hole 24 of the rotor core 4 has a d-axis between a pair of magnet through-holes 24 and a pair of adjacent magnet through-holes. The interval between 24 is set to the q axis. The d-axis is the direction of the magnetic flux created by the magnetic pole (the central axis of the permanent magnet), and the q-axis is the axis (an axis between the permanent magnets) that is electrically and magnetically orthogonal to it. In FIG. 3, only a part of the S pole and N pole of the permanent magnet 31 disposed in the magnet through hole 24 is shown.

一端側の抑え板５Ａと第１の分割回転子鉄心４１は、ボルト８０とナット７１とからなる固定部材により固定される。ボルト８０の軸部８１を、抑え板５Ａの貫通孔と第１の分割回転子鉄心４１を構成する各電磁鋼板２０の軸部用貫通孔２２に貫通し、ボルト８０の軸部８１の先端側にナット７１を螺合して締結する。ナット７１は、予め、第４の分割回転子鉄心４４を構成する電磁鋼板２０のナット用貫通孔２３内に収容しておき、抑え板５Ａおよび第４の分割回転子鉄心４４を貫通したボルト８０の軸部８１の先端部をナット７１のねじ部にねじ込む。これにより、抑え板５Ａと第１の分割回転子鉄心４１は、ボルト８０の頭部８２とナット７１それぞれを、抑え板５Ａと第１の分割回転子鉄心４１に対する押し当て部として、軸方向に押圧されて固定される。図４、図５（Ａ）に図示されるように、ボルト８０は、各電磁鋼板２０の対角線上に位置する一対の軸部用貫通孔２２に挿通される。図５（Ａ）に図示されるように、ボルト８０は、第１の分割回転子鉄心４１のみを貫通し、第３の分割回転子鉄心４３には達していない。   The holding plate 5 </ b> A on the one end side and the first split rotor core 41 are fixed by a fixing member including a bolt 80 and a nut 71. The shaft portion 81 of the bolt 80 passes through the through hole of the holding plate 5A and the shaft portion through hole 22 of each electromagnetic steel plate 20 constituting the first split rotor core 41, and the tip end side of the shaft portion 81 of the bolt 80 The nut 71 is screwed onto and fastened. The nut 71 is accommodated in advance in the nut through-hole 23 of the electromagnetic steel plate 20 constituting the fourth divided rotor core 44, and the bolt 80 penetrating the holding plate 5 </ b> A and the fourth divided rotor core 44. The tip portion of the shaft portion 81 is screwed into the screw portion of the nut 71. As a result, the holding plate 5A and the first split rotor core 41 are arranged in the axial direction by using the head portion 82 and the nut 71 of the bolt 80 as the pressing portions against the holding plate 5A and the first split rotor core 41, respectively. It is pressed and fixed. As shown in FIGS. 4 and 5A, the bolt 80 is inserted into the pair of through-holes 22 for the shaft portion located on the diagonal line of each electromagnetic steel sheet 20. As shown in FIG. 5A, the bolt 80 passes only through the first split rotor core 41 and does not reach the third split rotor core 43.

同様に、他端側の抑え板５Ｂと第２の分割回転子鉄心４２は、ボルト８０とナット７１とからなる固定部材により固定される。ボルト８０の軸部８１を、抑え板５Ｂの貫通孔と第２の分割回転子鉄心４２を構成する各電磁鋼板２０の軸部用貫通孔２２に貫通し、ボルト８０の軸部８１の先端側にナット７１を螺合して締結する。ナット７１は、予め、第５の分割回転子鉄心４５を構成する電磁鋼板２０のナット用貫通孔２３内に収容しておき、抑え板５Ｂおよび第５の分割回転子鉄心４５を貫通したボルト８０の軸部８１の先端部をナット７１のねじ部にねじ込む。これにより、抑え板５Ｂと第２の分割回転子鉄心４２は、ボルト８０の頭部８２とナット７１それぞれを、抑え板５Ｂと第２の分割回転子鉄心４２に対する押し当て部として、軸方向に押圧されて固定される。図４、図５（Ｂ）に図示されるように、抑え板５Ｂと第２の分割回転子鉄心４２を貫通するボルト８０は、抑え板５Ａと第１の分割回転子鉄心４１を貫通するボルト８０とは、角度が９０度異なる位置の一対の軸部用貫通孔２２に貫通される。図５（Ｂ）に図示されるように、ボルト８０は、第２の分割回転子鉄心４２のみを貫通し、第３の分割回転子鉄心４３には達していない。   Similarly, the holding plate 5 </ b> B on the other end side and the second split rotor core 42 are fixed by a fixing member including a bolt 80 and a nut 71. The shaft portion 81 of the bolt 80 passes through the through hole of the holding plate 5B and the shaft portion through hole 22 of each electromagnetic steel plate 20 constituting the second divided rotor core 42, and the tip end side of the shaft portion 81 of the bolt 80 The nut 71 is screwed onto and fastened. The nut 71 is previously accommodated in the nut through-hole 23 of the electromagnetic steel plate 20 constituting the fifth split rotor core 45, and the bolt 80 penetrating the holding plate 5B and the fifth split rotor core 45 is provided. The tip portion of the shaft portion 81 is screwed into the screw portion of the nut 71. As a result, the holding plate 5B and the second divided rotor core 42 are arranged in the axial direction by using the head portion 82 and the nut 71 of the bolt 80 as pressing portions against the holding plate 5B and the second divided rotor core 42, respectively. It is pressed and fixed. As shown in FIGS. 4 and 5B, the bolt 80 that passes through the holding plate 5B and the second divided rotor core 42 is a bolt that passes through the holding plate 5A and the first divided rotor core 41. 80 is penetrated by a pair of axial part through-holes 22 of a position 90 degrees different in angle. As shown in FIG. 5B, the bolt 80 passes only through the second split rotor core 42 and does not reach the third split rotor core 43.

抑え板５Ａ、５Ｂを、それぞれ、第４、第５の分割回転子鉄心４４、４５に固定することにより、永久磁石３１の飛散や、永久磁石３１を回転子鉄心４に接着する接着剤の漏れが防止される。   The fixing plates 5A and 5B are fixed to the fourth and fifth divided rotor cores 44 and 45, respectively, so that the permanent magnets 31 are scattered and the adhesive leaks to adhere the permanent magnets 31 to the rotor core 4. Is prevented.

回転子２を作製する方法を説明する。
第３の分割回転子鉄心４３を構成する電磁鋼板２０を積層してシャフト３に嵌合させて固定する。第４の分割回転子鉄心４４を、第３の分割回転子鉄心４３の一面側からシャフト３に嵌合させて固定する。第４の分割回転子鉄心４４は、第３の分割回転子鉄心４３の一面に密着するようにシャフト３に嵌合する。第５の分割回転子鉄心４５を、第３の分割回転子鉄心４３の他面側からシャフト３に嵌合させて固定する。第５の分割回転子鉄心４５は、第３の分割回転子鉄心４３の他面に密着するようにシャフト３に嵌合する。第５の分割回転子鉄心４５は、軸部用貫通孔２２およびナット用貫通孔２３が、第４の分割回転子鉄心４４とは、角度が９０度異なるようにシャフト３に嵌合する。 A method for producing the rotor 2 will be described.
The electromagnetic steel plates 20 constituting the third divided rotor core 43 are stacked and fitted to the shaft 3 and fixed. The fourth split rotor core 44 is fitted and fixed to the shaft 3 from one surface side of the third split rotor core 43. The fourth split rotor core 44 is fitted to the shaft 3 so as to be in close contact with one surface of the third split rotor core 43. The fifth split rotor core 45 is fitted and fixed to the shaft 3 from the other surface side of the third split rotor core 43. The fifth split rotor core 45 is fitted to the shaft 3 so as to be in close contact with the other surface of the third split rotor core 43. The fifth split rotor core 45 is fitted to the shaft 3 such that the shaft through hole 22 and the nut through hole 23 are 90 degrees different from the fourth split rotor core 44.

ナット７１を、第４の分割回転子鉄心４４のナット用貫通孔２３内に収容する。第１の分割回転子鉄心４１を、その軸部貫通孔２２を、第４の分割回転子鉄心４４のナット用貫通孔２３に位置合わせしてシャフト３に嵌合する。抑え板５Ａを、その貫通孔を第１の分割回転子鉄心４１の軸部用貫通孔２２に位置合わせしてシャフト３に嵌合する。ボルト８０を抑え板５Ａの貫通孔および第１の分割回転子鉄心４１の軸部用貫通孔２２を貫通させて、ナット７１にねじ込む。同様に、ナット７１を、第５の分割回転子鉄心４５のナット用貫通孔２３内に収容する。第２の分割回転子鉄心４２を、その軸部用貫通孔２２を、第５の分割回転子鉄心４５のナット用貫通孔２３に位置合わせしてシャフト３に嵌合する。抑え板５Ｂを、その貫通孔を、第２の分割回転子鉄心４２の軸部用貫通孔２２に位置合わせしてシャフト３に嵌合する。ボルト８０を抑え板５Ｂの貫通孔および第２の分割回転子鉄心４２の軸部用貫通孔２２を貫通させて、ナット７１にねじ込む。   The nut 71 is accommodated in the nut through hole 23 of the fourth divided rotor core 44. The first split rotor core 41 is fitted into the shaft 3 with the shaft through hole 22 aligned with the nut through hole 23 of the fourth split rotor core 44. The holding plate 5A is fitted to the shaft 3 with its through hole aligned with the through hole 22 for the shaft portion of the first split rotor core 41. The bolt 80 is pressed through the through hole of the holding plate 5 </ b> A and the shaft through hole 22 of the first split rotor core 41 and screwed into the nut 71. Similarly, the nut 71 is accommodated in the nut through hole 23 of the fifth split rotor core 45. The second split rotor core 42 is fitted to the shaft 3 with the shaft through hole 22 aligned with the nut through hole 23 of the fifth split rotor core 45. The holding plate 5 </ b> B is fitted to the shaft 3 by aligning the through hole with the shaft through hole 22 of the second divided rotor core 42. The bolt 80 is passed through the through hole of the holding plate 5 </ b> B and the shaft through hole 22 of the second split rotor core 42 and screwed into the nut 71.

なお、上記においては、第１〜第５の分割回転子鉄心４１〜４５を、１つずつ、シャフト３に嵌合する方法で説明した。しかし、ナット７１を、第４および第５の分割回転子鉄心４４、４５のナット用貫通孔２３に収容しておき、第１〜第５の分割回転子鉄心４１〜４５全体を一度にシャフト３に嵌合するようにしてもよい。あるいは、例えば、第１、第４、第３の分割回転子鉄心４１、４４、４３を一度にシャフト３に嵌合してから第５、第２の分割回転子鉄心４５、４２をシャフト３に嵌合する等、シャフト３に嵌合する第１〜第５の分割回転子鉄心４１〜４５の組み合わせおよび順番を任意に設定することが可能である。
さらに、抑え板５Ａ、５Ｂおよび第１〜第５の分割固定子鉄心４１〜４５を、予め、ボルト８０およびナット７１を用いて固定しておき、この後、全体を、一度にシャフト３に嵌合するようにしてもよい。 In the above description, the first to fifth divided rotor cores 41 to 45 are described as being fitted to the shaft 3 one by one. However, the nut 71 is accommodated in the nut through-holes 23 of the fourth and fifth split rotor cores 44 and 45 so that the first to fifth split rotor cores 41 to 45 as a whole are shaft 3 at a time. You may make it fit in. Alternatively, for example, the first, fourth, and third divided rotor cores 41, 44, and 43 are fitted to the shaft 3 at a time, and then the fifth and second divided rotor cores 45 and 42 are attached to the shaft 3. It is possible to arbitrarily set the combination and order of the first to fifth divided rotor cores 41 to 45 fitted to the shaft 3 such as fitting.
Further, the holding plates 5A and 5B and the first to fifth divided stator cores 41 to 45 are fixed in advance using bolts 80 and nuts 71, and thereafter, the whole is fitted to the shaft 3 at once. You may make it match.

上記第１の実施形態によれば、下記の効果を奏する。
（１）回転子鉄心４は、積層方向に分割された複数の分割回転子鉄心４１〜４５により構成され、一端側の抑え板５Ａと、該抑え板５Ａに隣接する第１の分割回転子鉄心４１とを積層方向に貫通する軸部８１を有する一端側のボルト８０と、他端側の抑え板５Ｂと、該抑え板５Ｂに隣接する第２の分割回転子鉄心４２とを積層方向に貫通する軸部８１を有する他端側のボルト８０と、を備える。この構造によれば、一端側の抑え板５Ａと第１の分割回転子鉄心４１とを固定するボルト８０の軸部８１の長さは、一端側の抑え板５Ａと第１の分割回転子鉄心４１を貫通するだけの長さを有しており、第３または第４の分割回転子鉄心４３、４４まで延在されていない。同様に、他端側の抑え板５Ｂと第２の分割回転子鉄心４２とを固定するボルト８０の軸部８１の長さは、他端側の抑え板５Ｂと第２の分割回転子鉄心４２を貫通するだけの長さを有しており、第３または第１の分割回転子鉄心４３、４１まで延在されていない。このため、一端側および他端側のボルト８０の軸部８１の長さを小さくすることができる。しかし、このようにボルト８０の軸部８１の長さが小さいにも拘わらず、回転子２は、軸方向に第１〜第５の分割回転子鉄心４１〜４５を有する長い長さに形成されている。すなわち、抑え板５Ａ、５Ｂと回転子鉄心４とを固定するボルト８０の長さを小さくできるにも拘わらず、回転子２の軸方向の長さが大きい回転電機１とすることができ、回転電機１の動力性能を大きいものとすることができる。つまり、抑え板５Ａ、５Ｂと第１、第２の分割回転子用鉄心４１、４２とを固定するボルト８０の軸部８１には遠心力により曲げ応力が発生するが、ボルト８０の軸部８１の長さは小さいので曲げ応力が小さくなる。このため、回転子２の許容回転数を向上することができるのである。 According to the first embodiment, the following effects are obtained.
(1) The rotor core 4 is composed of a plurality of divided rotor cores 41 to 45 divided in the stacking direction, and includes a holding plate 5A on one end side and a first divided rotor core adjacent to the holding plate 5A. 41, a bolt 80 on one end side having a shaft portion 81 penetrating in the laminating direction, a holding plate 5B on the other end side, and a second split rotor core 42 adjacent to the holding plate 5B in the laminating direction. And a bolt 80 on the other end side having a shaft portion 81 to be provided. According to this structure, the length of the shaft portion 81 of the bolt 80 that fixes the holding plate 5A on one end side and the first divided rotor core 41 is the same as that of the holding plate 5A on one end side and the first divided rotor core. It has a length enough to penetrate 41 and does not extend to the third or fourth split rotor core 43, 44. Similarly, the length of the shaft portion 81 of the bolt 80 that fixes the holding plate 5B on the other end side and the second divided rotor core 42 is the same as that of the holding plate 5B on the other end side and the second divided rotor core 42. , And does not extend to the third or first split rotor core 43, 41. For this reason, the length of the shaft part 81 of the bolt 80 on one end side and the other end side can be reduced. However, although the length of the shaft portion 81 of the bolt 80 is small as described above, the rotor 2 is formed in a long length having the first to fifth divided rotor cores 41 to 45 in the axial direction. ing. That is, although the length of the bolt 80 for fixing the holding plates 5A and 5B and the rotor core 4 can be reduced, the rotary electric machine 1 having a large axial length of the rotor 2 can be provided. The power performance of the electric machine 1 can be increased. That is, bending stress is generated by the centrifugal force in the shaft portion 81 of the bolt 80 that fixes the holding plates 5A and 5B and the first and second divided rotor cores 41 and 42. Since the length of is small, the bending stress is small. For this reason, the permissible rotational speed of the rotor 2 can be improved.

上記実施形態において、第１、第２の分割回転子鉄心４１、４２は、その厚さ、すなわち軸方向の長さを小さくする程、ボルト８０の軸部８１の長さが小さくなるので、シャフト３との間で十分な固定力がある限り、第１、第２の分割回転子鉄心４１、４２の厚さを小さくすることが好ましい。   In the above embodiment, the first and second divided rotor cores 41 and 42 have a shaft portion 81 of the bolt 80 that is reduced in length as the thickness thereof, that is, the length in the axial direction is reduced. As long as there is sufficient fixing force between the first and second divided rotor cores 41 and 42, the thickness of the first and second divided rotor cores 41 and 42 is preferably reduced.

−第２の実施形態−
図６は、本発明の回転電機に適用される回転子の第２の実施形態を示す断面図である。
第２の回転子２Ａでは、一端側および他端側に設けられた固定部材、すなわち、ボルト８０とナット７１の軸方向における位置が、第１の実施形態とは、逆になっている。
すなわち、一端側の抑え板５Ａと第１の分割回転子鉄心４１とを固定するボルト８０は、頭部８２が第４の分割回転子鉄心４４のナット用貫通孔２３内に収容されており、ナット７１は、抑え板５Ａの外側面側から、抑え板５Ａを押圧している。同様に、他端側の抑え板５Ｂと第２の分割回転子鉄心４２とを固定するボルト８０は、頭部８２が第５の分割回転子鉄心４５のナット用貫通孔２３内に収容されており、ナット７１は、抑え板５Ｂの外側面側から、抑え板５Ａを押圧している。
第２の実施形態における回転子２Ａの各ボルト８０の長さと、第１の実施形態の回転子２の各ボルト８０の長さとは同一である。
従って、第２の実施形態においても、第１の実施形態と同様な効果を奏する。 -Second Embodiment-
FIG. 6 is a cross-sectional view showing a second embodiment of a rotor applied to the rotating electrical machine of the present invention.
In the second rotor 2A, the fixing members provided on one end side and the other end side, that is, the positions of the bolts 80 and the nuts 71 in the axial direction are opposite to those in the first embodiment.
That is, the bolt 80 that fixes the holding plate 5A on one end side and the first divided rotor core 41 has a head 82 accommodated in the nut through hole 23 of the fourth divided rotor core 44, The nut 71 presses the holding plate 5A from the outer surface side of the holding plate 5A. Similarly, the bolt 80 that fixes the holding plate 5B on the other end side and the second divided rotor core 42 has a head 82 accommodated in the nut through hole 23 of the fifth divided rotor core 45. The nut 71 presses the holding plate 5A from the outer surface side of the holding plate 5B.
The length of each bolt 80 of the rotor 2A in the second embodiment is the same as the length of each bolt 80 of the rotor 2 in the first embodiment.
Therefore, also in the second embodiment, the same effects as in the first embodiment can be obtained.

−第３の実施形態−
図７は、本発明の回転電機に適用される回転子の第３の実施形態を示す断面図である。
第３の実施形態では、回転子２Ｂの回転子鉄心４は、２つの分割回転子鉄心のみで構成されている点で、回転子鉄心４が第１〜第５の５つの分割回転子鉄心４１〜４５で構成される第１、第２の実施形態と相違する。
図７に図示されるように、回転子２Ｂは、一端側および他端側の抑え板５Ａ、５Ｂ、および第１、第２の分割回転子鉄心５１、５２により構成されている。第１、第２の分割固定子鉄心５１、５２は、軸部用貫通孔２２とナット用貫通孔２３とを対向して配置されている。一端側の抑え板５Ａと第１の分割回転子鉄心５１とを貫通するボルト８０の軸部８１の先端に締結されるナット７１は、第２の分割回転子鉄心５２のナット用貫通孔２３内に収容されている。また、他端側の抑え板５Ｂと第２の分割回転子鉄心５２とを貫通するボルト８０の軸部８１の先端に締結されるナット７１は、第１の分割回転子鉄心５１のナット用貫通孔２３内に収容されている。 -Third embodiment-
FIG. 7 is a cross-sectional view showing a third embodiment of a rotor applied to the rotating electrical machine of the present invention.
In the third embodiment, the rotor core 4 of the rotor 2B is composed of only two split rotor cores, and the rotor core 4 is composed of first to fifth split rotor cores 41. This is different from the first and second embodiments composed of .about.45.
As illustrated in FIG. 7, the rotor 2 </ b> B is configured by holding plates 5 </ b> A and 5 </ b> B on one end side and the other end side, and first and second divided rotor cores 51 and 52. The first and second split stator cores 51 and 52 are disposed so that the shaft through hole 22 and the nut through hole 23 face each other. The nut 71 fastened to the tip of the shaft portion 81 of the bolt 80 that passes through the holding plate 5A on one end side and the first split rotor core 51 is inside the through hole 23 for the nut of the second split rotor core 52. Is housed in. The nut 71 fastened to the tip of the shaft portion 81 of the bolt 80 that passes through the holding plate 5B on the other end side and the second split rotor core 52 passes through the nut of the first split rotor core 51. It is accommodated in the hole 23.

第３の実施形態の回転子２Ｂを組立てる手順の一例を下記に示す。
・第１の分割回転子鉄心５１の軸部貫通用孔２２と第２の分割回転子鉄心５２のナット用貫通孔２３とを位置合わせする。
・ナット７１を第１、第２の分割回転子鉄心５１、５２内に収容する
・一端側の抑え板５Ａの貫通孔を第１の分割回転子鉄心５１の軸部用貫通孔２２に位置合わせする。
・ボルト８０の軸部８１を、軸部８１の先端側から一端側の抑え板５Ａの貫通孔と第１の分割回転子鉄心５１の軸部用貫通孔２２に挿通し、ボルト８０の軸部８１を、ナット７１のねじ部にねじ込む。
・同様に、他端側の抑え板５Ｂの貫通孔を第２の分割回転子鉄心５２の軸部用貫通孔２２に位置合わせする。ボルト８０の軸部８１を、軸部８１の先端側から他端側の抑え板５Ｂの貫通孔と第２の分割回転子鉄心５２の軸部用貫通孔２２に挿通し、ボルト８０の軸部８１を、ナット７１のねじ部にねじ込む。 An example of the procedure for assembling the rotor 2B of the third embodiment is shown below.
The shaft through hole 22 of the first divided rotor core 51 and the nut through hole 23 of the second divided rotor core 52 are aligned.
The nut 71 is accommodated in the first and second divided rotor cores 51 and 52. The through hole of the holding plate 5A on one end side is aligned with the through hole 22 for the shaft portion of the first divided rotor core 51. To do.
The shaft portion 81 of the bolt 80 is inserted into the through hole of the holding plate 5A on the one end side from the tip end side of the shaft portion 81 and the through hole 22 for the shaft portion of the first split rotor core 51, and the shaft portion of the bolt 80 is inserted. 81 is screwed into the threaded portion of the nut 71.
Similarly, the through hole of the holding plate 5 </ b> B on the other end side is aligned with the through hole 22 for the shaft part of the second divided rotor core 52. The shaft portion 81 of the bolt 80 is inserted into the through hole of the holding plate 5B on the other end side from the front end side of the shaft portion 81 and the through hole 22 for the shaft portion of the second divided rotor core 52, and the shaft portion of the bolt 80 is inserted. 81 is screwed into the threaded portion of the nut 71.

第３の実施形態において、一端側の抑え板５Ａと第１の分割回転子鉄心５１とを固定するボルト８０の軸部８１の長さは、一端側の抑え板５Ａと第１の分割回転子鉄心５１を貫通するだけの長さを有しており、第２の分割回転子鉄心４２を貫通する長さとする必要は無い。同様に、他端側の抑え板５Ｂと第２の分割回転子鉄心５２とを固定するボルト８０の軸部８１の長さは、他端側の抑え板５Ｂと第２の分割回転子鉄心５２を貫通するだけの長さを有しており、第１の分割回転子鉄心５１まで延在する長さとする必要は無い。
従って、第３の実施形態においても、第１の実施形態と同様な効果を奏する。 In the third embodiment, the length of the shaft portion 81 of the bolt 80 that fixes the holding plate 5A on one end side and the first divided rotor core 51 is the same as that of the holding plate 5A on one end side and the first divided rotor. The length is sufficient to penetrate the iron core 51, and it is not necessary to have a length that penetrates the second split rotor iron core 42. Similarly, the length of the shaft portion 81 of the bolt 80 that fixes the holding plate 5B on the other end side and the second divided rotor core 52 is the same as that of the holding plate 5B on the other end side and the second divided rotor core 52. It is not necessary to have a length that extends to the first split rotor core 51.
Therefore, the third embodiment also has the same effect as the first embodiment.

なお、第３の実施形態において、一端側および他端側に設けられた固定部材、すなわち、ボルト８０とナット７１の軸方向における配置を、図３とは逆にしてもよい。
すなわち、この変形例の回転子は、図示はしないが下記の構成を有する。
一端側の抑え板５Ａと第１の分割回転子鉄心５１とを固定するボルト８０は該ボルト８０の軸部８１の先端側から第１の分割回転子鉄心５１の軸部用貫通孔２２および一端側の抑え板５Ａの貫通孔を挿通される。そして、一端側の抑え板５Ａの外面側からナット７１が、ボルト８０の軸部８１の先端に締結される。同様に、他端側の抑え板５Ｂと第２の分割回転子鉄心５２とを固定するボルト８０は、該ボルト８０の軸部８１の先端側から第２の分割回転子鉄心５２の軸部用貫通孔２２および他端側の抑え板５Ｂの貫通孔を挿通される。そして、他端側の抑え板５Ｂの外面側からナット７１が、ボルト８０の軸部８１の先端に締結される。 In the third embodiment, the fixing members provided on the one end side and the other end side, that is, the arrangement of the bolts 80 and the nuts 71 in the axial direction may be reversed from FIG.
That is, the rotor of this modified example has the following configuration although not shown.
The bolt 80 for fixing the holding plate 5A on one end side and the first divided rotor core 51 is connected to the through hole 22 for the shaft portion of the first divided rotor core 51 and one end from the tip end side of the shaft portion 81 of the bolt 80. The through hole of the holding plate 5A on the side is inserted. Then, the nut 71 is fastened to the tip of the shaft portion 81 of the bolt 80 from the outer surface side of the holding plate 5A on one end side. Similarly, the bolt 80 for fixing the holding plate 5B on the other end side and the second split rotor core 52 is for the shaft portion of the second split rotor core 52 from the tip end side of the shaft portion 81 of the bolt 80. The through hole 22 and the through hole of the holding plate 5B on the other end side are inserted. Then, the nut 71 is fastened to the tip of the shaft portion 81 of the bolt 80 from the outer surface side of the holding plate 5B on the other end side.

なお、上記各実施形態において、固定部材としてボルト８０とナット７１とを用いた構造として提示した。しかし、固定部材として他の部材を用いることができる。例えば、頭部を有するピンを用いて、ピンの先端側を加締めるようにしてもよい。つまり、ピンを第１、第２の分割回転子鉄心４１、４２、５１、５２の内側面側から抑え板５Ａ、５Ｂ側に向けて貫通し、ピンの先端を、抑え板５Ａ、５Ｂの外側面から突出する。そして、抑え板５Ａ、５Ｂの外側面から突出されたピンの先端を抑え板５Ａ、５Ｂに加締める。   In each of the above embodiments, a structure using the bolt 80 and the nut 71 as the fixing member is presented. However, other members can be used as the fixing member. For example, a pin having a head may be used to crimp the tip side of the pin. That is, the pin is penetrated from the inner surface side of the first and second divided rotor cores 41, 42, 51, 52 toward the holding plates 5A, 5B, and the tip of the pin is outside the holding plates 5A, 5B. Projects from the side. And the front-end | tip of the pin protruded from the outer surface of the restraining plates 5A and 5B is crimped to the restraining plates 5A and 5B.

本発明の回転電機は、巻線方式、結線方式、回転子のスキュー角の有無、極数等に限定されるものではない。   The rotating electrical machine of the present invention is not limited to the winding method, the connection method, the presence or absence of the rotor skew angle, the number of poles, and the like.

上記では、種々の実施の形態および変形例を説明したが、本発明はこれらの内容に限定されるものではない。本発明の技術的思想の範囲内で考えられるその他の態様も本発明の範囲内に含まれる。   Although various embodiments and modifications have been described above, the present invention is not limited to these contents. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

１ 回転電機
２、２Ａ、２Ｂ 回転子
３ シャフト
４ 回転子鉄心
５Ａ、５Ｂ 抑え板
１３ 固定子
２０ 電磁鋼板
２１ シャフト用貫通孔
２２ 軸部用貫通孔
２３ ナット用貫通孔（押し当て部挿通部）
２４ 磁石用貫通孔
３１ 永久磁石
４１〜４５ 第１〜第５の分割回転子鉄心
５１、５２ 第１、第２の分割回転子鉄心
７１ ナット（押し当て部）
８０ ボルト
８１ 軸部
８２ 頭部（押し当て部）
DESCRIPTION OF SYMBOLS 1 Rotating electrical machine 2, 2A, 2B Rotor 3 Shaft 4 Rotor core 5A, 5B Holding plate 13 Stator 20 Electromagnetic steel plate 21 Shaft through-hole 22 Shaft through-hole 23 Nut through-hole (pressing portion insertion portion)
24 Magnet through-hole 31 Permanent magnet 41-45 First to fifth divided rotor cores 51, 52 First and second divided rotor cores 71 Nut (pressing portion)
80 bolt 81 shaft 82 head (pressing part)

Claims (6)

固定子と、回転子と、巻線と、前記固定子、前記回転子および前記巻線を収容するケーシングと、を備え、
前記回転子は、
回転軸と、
永久磁石の収納空間を有し、複数の電磁鋼板が積層して構成され、前記回転軸に固定される回転子鉄心と、
前記回転子鉄心の前記収納空間に収納される磁石と、
前記回転子鉄心の積層方向の一端側および他端側に配置される抑え板と、を備え、
前記回転子鉄心は、積層方向に分割された複数の分割回転子鉄心により構成され、
さらに、前記一端側の前記抑え板と、前記一端側の前記抑え板に隣接する前記分割回転子鉄心とを積層方向に貫通する軸部を有する一端側固定部材と、
前記他端側の前記抑え板と、前記他端側の前記抑え板に隣接する前記分割回転子鉄心とを積層方向に貫通する軸部を有する他端側固定部材と、を備える、回転電機。 A stator, a rotor, a winding, and a casing that houses the stator, the rotor, and the winding;
The rotor is
A rotation axis;
A rotor core that has a permanent magnet storage space, is configured by laminating a plurality of electromagnetic steel plates, and is fixed to the rotating shaft;
A magnet housed in the housing space of the rotor core;
A holding plate disposed on one end side and the other end side in the stacking direction of the rotor core, and
The rotor core is composed of a plurality of divided rotor cores divided in the stacking direction,
Furthermore, the one end side fixing member having a shaft portion penetrating in the stacking direction through the holding plate on the one end side and the split rotor core adjacent to the holding plate on the one end side,
A rotating electric machine comprising: the other end side fixing member having a shaft portion that penetrates the holding plate on the other end side and the split rotor core adjacent to the holding plate on the other end side in the stacking direction. 請求項１に記載の回転電機において、
前記一端側固定部材および前記他端側固定部材は、それぞれ、前記軸部の先端に、前記抑え板または前記電磁鋼板を積層方向に押し付ける押し当て部を有する、回転電機。 In the rotating electrical machine according to claim 1,
The one end side fixing member and the other end side fixing member each have a pressing portion that presses the holding plate or the electromagnetic steel plate in the stacking direction at the tip of the shaft portion. 請求項２に記載の回転電機において、
前記回転子鉄心は、前記一端側の前記抑え板に隣接する前記分割回転子鉄心と前記他端側の前記抑え板に隣接する前記分割回転子鉄心との間に中間分割回転子鉄心を有する、回転電機。 The rotating electrical machine according to claim 2,
The rotor core has an intermediate divided rotor core between the divided rotor core adjacent to the holding plate on the one end side and the divided rotor core adjacent to the holding plate on the other end side. Rotating electric machine. 請求項３に記載の回転電機において、
前記回転子鉄心は、さらに、前記一端側の前記抑え板に隣接する前記分割回転子鉄心と前記中間分割回転子鉄心との間、および前記他端側の前記抑え板に隣接する前記分割回転子鉄心と前記中間分割回転子鉄心との間に、それぞれ、前記軸部の前記押し当て部を収容する押し当て部収容部が形成された分割回転子鉄心を有する、回転電機。 In the rotating electrical machine according to claim 3,
The rotor core is further divided between the divided rotor core adjacent to the holding plate on the one end side and the intermediate divided rotor iron core, and adjacent to the holding plate on the other end side. A rotating electrical machine having a split rotor core in which a pressing portion receiving portion for receiving the pressing portion of the shaft portion is formed between an iron core and the intermediate split rotor core. 請求項２に記載の回転電機において、
前記一端側の前記抑え板に隣接する前記分割回転子鉄心と、前記他端側の前記抑え板に隣接する前記分割回転子鉄心とは積層方向に隣接して配置され、それぞれ、相手方の前記固定部材の前記押し当て部を挿通する押し当て部挿通部を有する、回転電機。 The rotating electrical machine according to claim 2,
The divided rotor core adjacent to the holding plate on the one end side and the divided rotor core adjacent to the holding plate on the other end side are arranged adjacent to each other in the stacking direction, and each of them is fixed to the counterpart. A rotating electrical machine having a pressing portion insertion portion for inserting the pressing portion of a member. 請求項１から請求項５までのいずれか一項に記載の回転電機において、
前記一端側固定部材および前記他端側固定部材は、それぞれ、ボルトおよびナットを含む、回転電機。
In the rotary electric machine according to any one of claims 1 to 5,
The one end side fixing member and the other end side fixing member each include a bolt and a nut, respectively.
JP2016075668A 2016-04-05 2016-04-05 Rotary electric machine Pending JP2017189003A (en)

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Publication number Priority date Publication date Assignee Title
CN109698591A (en) * 2017-10-20 2019-04-30 发那科株式会社 Rotor and motor
US10742081B2 (en) 2017-10-20 2020-08-11 Fanuc Corporation Rotor and motor
CN111371264A (en) * 2018-12-25 2020-07-03 株洲中车机电科技有限公司 Manufacturing method of permanent magnet motor rotor
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