JP5944683B2 - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- JP5944683B2 JP5944683B2 JP2012030750A JP2012030750A JP5944683B2 JP 5944683 B2 JP5944683 B2 JP 5944683B2 JP 2012030750 A JP2012030750 A JP 2012030750A JP 2012030750 A JP2012030750 A JP 2012030750A JP 5944683 B2 JP5944683 B2 JP 5944683B2
- Authority
- JP
- Japan
- Prior art keywords
- claw
- rotor
- shaped magnetic
- shaped
- magnetic pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- IKBJGZQVVVXCEQ-UHFFFAOYSA-N efonidipine hydrochloride Chemical compound Cl.CCO.CC=1NC(C)=C(C(=O)OCCN(CC=2C=CC=CC=2)C=2C=CC=CC=2)C(C=2C=C(C=CC=2)[N+]([O-])=O)C=1P1(=O)OCC(C)(C)CO1 IKBJGZQVVVXCEQ-UHFFFAOYSA-N 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Synchronous Machinery (AREA)
Description
本発明は、ロータ及びモータに関するものである。 The present invention relates to a rotor and motor.
モータに用いられるロータとしては、周方向に複数の爪状磁極を有するロータコアと、ロータコア内に円板磁石とによって構成され、各爪状磁極が交互に異なる磁極に機能させる所謂ランデル型構造のロータが知られている(例えば、特許文献1)。 As a rotor used in a motor, a rotor core having a plurality of claw-shaped magnetic poles in the circumferential direction and a disc magnet in the rotor core, each claw-shaped magnetic pole alternately functioning as a different magnetic pole, a so-called Randel-type rotor Is known (for example, Patent Document 1).
ところで、ランデル型のロータ構造は、爪状磁極の形状が、コアベースから径方向外側に突出されるとともに軸方向に延出形成された3次元形状であった。そのため、軸方向の断面形状が全ての位置で同じ形状の従来のロータと異なり、容易に出力特性の調整ができず、目的特性毎に、爪状磁極の形状を変更することになりコストアップに繋がる。 By the way, the Landel rotor structure has a three-dimensional shape in which the shape of the claw-shaped magnetic pole protrudes radially outward from the core base and extends in the axial direction. Therefore, unlike conventional rotors that have the same cross-sectional shape in the axial direction at all positions, the output characteristics cannot be adjusted easily, and the shape of the claw-shaped magnetic pole is changed for each target characteristic, resulting in increased costs. Connected.
本発明は、上記問題点を解消するためになされたものであって、その目的は、ロータの形状を変えることなく、出力調整が容易にできるロータ、及びそのロータを備えたモータを提供することにある。 The present invention was made to solve the above problems, and an object without changing the shape of the rotor, to provide output adjustment can be easily rotor, and a motor having the rotor There is.
請求項1に記載の発明は、略円盤状の第1コアベースの外周部に、等間隔に複数の第1爪状磁極が径方向外側に突出されるとともに軸方向に延出形成された第1ロータコアと、略円盤状の第2コアベースの外周部に、等間隔に複数の第2爪状磁極が径方向外側に突出されるとともに軸方向に延出形成され、前記第2爪状磁極がそれぞれ対応する前記第1ロータコアの各第1爪状磁極間に配置された第2ロータコアと、前記第1コアベースと第2コアベースとの軸方向の間に配置され、前記軸方向に磁化されることで、前記第1爪状磁極を第1の磁極として機能させ、前記第2爪状磁極を第2の磁極として機能させる界磁部材とを備えたロータであって、前記界磁部材は、複数の永久磁石を軸方向に重ねて構成され、前記複数の永久磁石は、磁束密度の異なる永久磁石を含むことを特徴とする。
請求項2に記載の発明は、略円盤状の第1コアベースの外周部に、等間隔に複数の第1爪状磁極が径方向外側に突出されるとともに軸方向に延出形成された第1ロータコアと、
略円盤状の第2コアベースの外周部に、等間隔に複数の第2爪状磁極が径方向外側に突出されるとともに軸方向に延出形成され、前記第2爪状磁極がそれぞれ対応する前記第1ロータコアの各第1爪状磁極間に配置された第2ロータコアと、前記第1コアベースと第2コアベースとの軸方向の間に配置され、前記軸方向に磁化されることで、前記第1爪状磁極を第1の磁極として機能させ、前記第2爪状磁極を第2の磁極として機能させる界磁部材とを備えたロータであって、前記界磁部材は、複数の永久磁石を軸方向に重ねて構成され、前記複数の永久磁石は、厚さの異なる永久磁石を含むことを特徴とする。
According to the first aspect of the present invention, a plurality of first claw-shaped magnetic poles are formed on the outer periphery of the substantially disc-shaped first core base so as to protrude radially outward and extend in the axial direction at equal intervals. A plurality of second claw-shaped magnetic poles project radially outward and extend in the axial direction at equal intervals on the outer periphery of one rotor core and a substantially disc-shaped second core base, and the second claw-shaped magnetic poles Are arranged between the first rotor core disposed between the first claw-shaped magnetic poles of the corresponding first rotor core and the axial direction between the first core base and the second core base, and are magnetized in the axial direction. And a field member that causes the first claw-shaped magnetic pole to function as the first magnetic pole and the second claw-shaped magnetic pole to function as the second magnetic pole, wherein the field member is formed by stacking a plurality of permanent magnets in the axial direction, the plurality of permanent magnets, magnetic Characterized in that it comprises a different permanent magnet density.
According to the second aspect of the present invention, a plurality of first claw-shaped magnetic poles are formed on the outer periphery of the substantially disk-shaped first core base at equal intervals so as to protrude radially outward and extend in the axial direction. 1 rotor core,
A plurality of second claw-shaped magnetic poles protrude radially outward and extend in the axial direction on the outer peripheral portion of the substantially disc-shaped second core base, and the second claw-shaped magnetic poles correspond to each other. The second rotor core disposed between the first claw-shaped magnetic poles of the first rotor core and the axial direction between the first core base and the second core base are magnetized in the axial direction. A rotor including a field member that causes the first claw-shaped magnetic pole to function as a first magnetic pole and the second claw-shaped magnetic pole to function as a second magnetic pole, wherein the field member includes a plurality of field members. The permanent magnets are configured by overlapping in the axial direction, and the plurality of permanent magnets include permanent magnets having different thicknesses.
請求項1及び請求項2に記載の発明によれば、界磁部材は、複数の永久磁石を軸方向に重ねて構成したことで、ロータの形状を変えることなく、出力調整が容易にできる。 According to the first and second aspects of the invention , the field member is configured by stacking a plurality of permanent magnets in the axial direction, so that output adjustment can be easily performed without changing the shape of the rotor .
請求項3に記載の発明は、請求項1又は2に記載のロータを備えたことを特徴とするモータ。
請求項3に記載の発明によれば、ロータの形状を変えることなく、出力調整が容易にできるモータを実現することができる。
A third aspect of the present invention is a motor comprising the rotor according to the first or second aspect.
According to the third aspect of the present invention, it is possible to realize a motor that can easily adjust the output without changing the shape of the rotor .
本発明によれば、ロータの形状を変えることなく、出力調整が容易にできるロータ、及びそのロータを備えたモータを実現できる。 According to the present invention, without changing the shape of the rotor, the output adjustment can be easily rotor, and a motor having the rotor can be realized.
以下、本発明を具体化した一実施形態を図面に従って説明する。
図1に示すように、モータ1のモータケース2は、有底筒状に形成された筒状ハウジング3と、該筒状ハウジング3のフロント側(図1中、左側)の開口部を閉塞するフロントエンドプレート4とを有している。また、筒状ハウジング3のリア側(図1中、右側)の端部には、回路基板等の電源回路を収容した回路収容ボックス5が取り付けられている。筒状ハウジング3の内周面にはステータ6が固定されている。ステータ6は、図2に示すように、径方向内側に延びる複数のティース7aを有する電機子コア7と、電機子コア7のティース7aに巻装されたセグメントコンダクタ(SC)巻線8とを有する。モータ1のロータ11は回転軸12を有し、ステータ6の内側に配置されている。回転軸12は非磁性体の金属シャフトであって、筒状ハウジング3の底部3a及びフロントエンドプレート4に支持された軸受13,14により回転可能に支持されている。
(ロータ11)
ロータ11は、図3、図4及び図5に示すように、第1及び第2ロータコア20,30と、界磁部材としての環状界磁部材40(図4及び図5参照)とを備える。
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, a motor case 2 of a motor 1 closes a cylindrical housing 3 formed in a bottomed cylindrical shape and an opening on the front side (left side in FIG. 1) of the cylindrical housing 3. And a front end plate 4. A circuit housing box 5 that houses a power supply circuit such as a circuit board is attached to an end of the cylindrical housing 3 on the rear side (right side in FIG. 1). A stator 6 is fixed to the inner peripheral surface of the cylindrical housing 3. As shown in FIG. 2, the stator 6 includes an armature core 7 having a plurality of teeth 7 a extending radially inward, and a segment conductor (SC) winding 8 wound around the teeth 7 a of the armature core 7. Have. The rotor 11 of the motor 1 has a rotating shaft 12 and is disposed inside the stator 6. The rotating shaft 12 is a non-magnetic metal shaft, and is rotatably supported by bearings 13 and 14 supported by the bottom 3 a of the cylindrical housing 3 and the front end plate 4.
(Rotor 11)
As shown in FIGS. 3, 4 and 5, the rotor 11 includes first and second rotor cores 20 and 30 and an annular field member 40 (see FIGS. 4 and 5) as a field member.
(第1ロータコア20)
図3、図4及び図5に示すように、第1ロータコア20は、略円盤状に形成された第1コアベース21の外周部に、等間隔に複数(本実施形態では5つ)の第1爪状磁極22が径方向外側に突出されるとともに軸方向に延出形成されている。第1爪状磁極22の周方向端面22a,22bは、径方向に延びる(軸方向から見て径方向に対して傾斜していない)平坦面とされ、第1爪状磁極22は軸直交方向断面が扇形状とされている。各第1爪状磁極22の周方向の角度、即ち前記周方向端面22a,22b間の角度は、周方向に隣り合う第1爪状磁極22同士の隙間の角度より小さく設定されている。
(First rotor core 20)
As shown in FIGS. 3, 4, and 5, the first rotor core 20 has a plurality (five in the present embodiment) of first core bases 21 formed at substantially equal intervals on the outer periphery of the first core base 21. A single claw-shaped magnetic pole 22 protrudes radially outward and extends in the axial direction. The circumferential end surfaces 22a and 22b of the first claw-shaped magnetic pole 22 are flat surfaces extending in the radial direction (not inclined with respect to the radial direction when viewed from the axial direction), and the first claw-shaped magnetic pole 22 is in the direction perpendicular to the axis. The cross section has a fan shape. The circumferential angle of each first claw-shaped magnetic pole 22, that is, the angle between the circumferential end faces 22 a and 22 b is set smaller than the angle of the gap between the first claw-shaped magnetic poles 22 adjacent in the circumferential direction.
(第2ローコア30)
第2ロータコア30は、図3、図4及び図5に示すように、第1ロータコア20と同形状であって、略円盤状の第2コアベース31の外周部に、等間隔に複数の第2爪状磁極32が径方向外側に突出されるとともに軸方向に延出形成されている。第2爪状磁極32の周方向端面32a,32bは径方向に延びる平坦面とされ、第2爪状磁極32は軸直交方向断面が扇形状とされている。各第2爪状磁極32の周方向の角度、即ち前記周方向端面32a,32b間の角度は、周方向に隣り合う第2爪状磁極32同士の隙間の角度より小さく設定されている。
(Second low core 30)
As shown in FIGS. 3, 4 and 5, the second rotor core 30 has the same shape as the first rotor core 20, and a plurality of second rotor cores 30 are arranged at equal intervals on the outer periphery of the substantially disk-shaped second core base 31. A two-claw magnetic pole 32 protrudes radially outward and extends in the axial direction. The circumferential end surfaces 32a and 32b of the second claw-shaped magnetic pole 32 are flat surfaces extending in the radial direction, and the second claw-shaped magnetic pole 32 has a fan-shaped cross section in the direction perpendicular to the axis. The circumferential angle of each second claw-shaped magnetic pole 32, that is, the angle between the circumferential end faces 32a and 32b is set smaller than the angle of the gap between the second claw-shaped magnetic poles 32 adjacent in the circumferential direction.
そして、第2ロータコア30は、前記各第2爪状磁極32がそれぞれ対応する各第1爪状磁極22間に配置される。そして、このとき、第2ロータコア30は、第1コアベース21と第2コアベース31との軸方向の間に環状界磁部材40(図4参照)が配置(挟持)されるようにして第1ロータコア20に対して組み付けられる。 The second rotor core 30 is disposed between the first claw-shaped magnetic poles 22 to which the second claw-shaped magnetic poles 32 respectively correspond. At this time, the second rotor core 30 is arranged such that the annular field member 40 (see FIG. 4) is disposed (clamped) between the first core base 21 and the second core base 31 in the axial direction. One rotor core 20 is assembled.
詳述すると、環状界磁部材40は、第1コアベース21の第2コアベース31側の面(対向面21a)と第2コアベース31の第1コアベース21側の面(対向面31a)の間に挟持される。 More specifically, the annular field member 40 includes a surface (opposing surface 21a) on the second core base 31 side of the first core base 21 and a surface (opposing surface 31a) on the first core base 21 side of the second core base 31. Is sandwiched between.
このとき、第1爪状磁極22の一方の周方向端面22aと第2爪状磁極32の他方の周方向端面32bとが軸方向に沿って平行をなすように形成されるため、両端面22a,32b間の間隙が軸方向に沿って略直線状をなすように形成される。また、第1爪状磁極22の他方の周方向端面22bと第2爪状磁極32の一方の周方向端面32aとが軸方向に沿って平行をなすように形成されるため、両端面22b,32a間の間隙が軸方向に沿って略直線状をなすように形成される。 At this time, one circumferential end face 22a of the first claw-shaped magnetic pole 22 and the other circumferential end face 32b of the second claw-shaped magnetic pole 32 are formed so as to be parallel along the axial direction. , 32b is formed so as to be substantially linear along the axial direction. Further, since the other circumferential end surface 22b of the first claw-shaped magnetic pole 22 and one circumferential end surface 32a of the second claw-shaped magnetic pole 32 are formed to be parallel along the axial direction, both end surfaces 22b, The gaps 32a are formed so as to be substantially linear along the axial direction.
(環状界磁部材40)
図4及び図5に示すように、第1ロータコア20と第2ロータコア30との間に挟持された環状界磁部材40は、複数(本実施形態では2個)の単位永久磁石41が重なり合って形成されている。単位永久磁石41は、その外径が第1及び第2コアベース21,31の外径と同じに設定され、厚さが予め定めた設定された厚さである。
(Annular field member 40)
As shown in FIGS. 4 and 5, the annular field member 40 sandwiched between the first rotor core 20 and the second rotor core 30 has a plurality (two in this embodiment) of unit permanent magnets 41 overlapping each other. Is formed. The unit permanent magnet 41 has an outer diameter that is set to be the same as the outer diameter of the first and second core bases 21 and 31, and a predetermined thickness.
そして、環状界磁部材40が単位永久磁石41を重ねて使用する個数は、本実施形態では、第1爪状磁極22及び第2爪状磁極32の軸方向に長さによって決めている。
つまり、第1ロータコア20と第2ロータコア30との間に環状界磁部材40を挟持したとき、第1爪状磁極22の先端面22cと第2コアベース31の反対向面31bとが面一になるとともに、第2爪状磁極32の先端面32cと第1コアベース21の反対向面21bと面一になるようにしている。
The number of unit permanent magnets 41 used by the annular field member 40 being overlapped is determined by the length in the axial direction of the first claw-shaped magnetic pole 22 and the second claw-shaped magnetic pole 32 in this embodiment.
That is, when the annular field member 40 is sandwiched between the first rotor core 20 and the second rotor core 30, the tip surface 22 c of the first claw-shaped magnetic pole 22 and the opposite surface 31 b of the second core base 31 are flush with each other. In addition, the tip end surface 32c of the second claw-shaped magnetic pole 32 and the opposite surface 21b of the first core base 21 are flush with each other.
そして、本実施形態では、2個の単位永久磁石41を重ねて環状界磁部材40を形成し、第1爪状磁極22の先端面22cと第2コアベース31の反対向面31bとが面一になるとともに、第2爪状磁極32の先端面32cと第1コアベース21の反対向面21bと面一になるようにしている。 In the present embodiment, the two unit permanent magnets 41 are overlapped to form the annular field member 40, and the tip surface 22 c of the first claw-shaped magnetic pole 22 and the opposite surface 31 b of the second core base 31 are surfaces. In addition, the tip end surface 32c of the second claw-shaped magnetic pole 32 and the opposite surface 21b of the first core base 21 are flush with each other.
つまり、2個の単位永久磁石41を重ねて環状界磁部材40を形成して、ロータ11の軸方向の長さを、電機子コア7の軸方向の長さとほぼ同じする。
換言すれば、単位永久磁石41の個数を変更し環状界磁部材40の厚さを調整することで、ロータ11の軸方向の長さを調整することができるようにしている。
That is, two unit permanent magnets 41 are overlapped to form the annular field member 40, and the axial length of the rotor 11 is made substantially the same as the axial length of the armature core 7.
In other words, the axial length of the rotor 11 can be adjusted by changing the number of unit permanent magnets 41 and adjusting the thickness of the annular field member 40.
環状界磁部材40の2個の単位永久磁石41は、その磁化方向が同じになるように重ね合わされていて、図4中の実線で示す矢印は磁化方向(S極からN極向く方向)を示している。 The two unit permanent magnets 41 of the annular field member 40 are superposed so that their magnetization directions are the same, and the arrows shown by solid lines in FIG. 4 indicate the magnetization direction (direction from the S pole to the N pole). Show.
そして、環状界磁部材40は、第1爪状磁極22を第1の磁極(本実施形態ではN極)として機能させ、第2爪状磁極32を第2の磁極(本実施形態ではS極)として機能させるように、軸方向に磁化されている。 The annular field member 40 causes the first claw-shaped magnetic pole 22 to function as the first magnetic pole (N pole in the present embodiment), and the second claw-shaped magnetic pole 32 serves as the second magnetic pole (S pole in the present embodiment). ) Is magnetized in the axial direction.
従って、本実施形態のロータ11は、環状界磁部材40を用いた所謂ランデル型構造のロータである。ロータ11は、N極となる第1爪状磁極22と、S極となる第2爪状磁極32とが周方向に交互に配置されており、磁極数が10極(極対数が5個)となる。ここで、極対数が3以上の奇数であるため、ロータコア単位で見ると同極の爪状磁極同士が周方向180°対向位置とならないため、磁気振動に対して安定する形状となる。 Therefore, the rotor 11 of the present embodiment is a so-called Landel type rotor using the annular field member 40. In the rotor 11, first claw-shaped magnetic poles 22 that are N poles and second claw-shaped magnetic poles 32 that are S poles are alternately arranged in the circumferential direction, and the number of magnetic poles is 10 (the number of pole pairs is 5). It becomes. Here, since the number of pole pairs is an odd number of 3 or more, the claw-like magnetic poles having the same polarity do not face each other at 180 ° in the circumferential direction when viewed in the rotor core unit, so that the shape is stable against magnetic vibration.
上記のように構成されたモータ1は、回路収容ボックス5内の電源回路を介してセグメントコンダクタ(SC)巻線8に3相の駆動電流が供給されると、ステータ6でロータ11を回転させるための磁界が発生され、ロータ11が回転駆動される。 When the three-phase drive current is supplied to the segment conductor (SC) winding 8 via the power supply circuit in the circuit housing box 5, the motor 1 configured as described above rotates the rotor 11 with the stator 6. Is generated, and the rotor 11 is rotationally driven.
次に、上記のように構成した実施形態の作用を以下に記載する。
単位永久磁石41を用意し、重ね合わせる単位永久磁石41の個数を変更するだけで環状界磁部材40の厚さが調整される。そして、軸方向の長さが異なる種々のロータ11に対して、単位永久磁石41の個数を変更することで、軸方向の長さの異なる種々のロータに対応することができることになる。
Next, the operation of the embodiment configured as described above will be described below.
The unit permanent magnet 41 is prepared, and the thickness of the annular field member 40 is adjusted only by changing the number of unit permanent magnets 41 to be superimposed. Then, by changing the number of unit permanent magnets 41 for various rotors 11 having different axial lengths, it is possible to cope with various rotors having different axial lengths.
さらに、例えば、2個の単位永久磁石41をそれぞれ異なる磁束密度を有する単位永久磁石に変えることで、モータ1のサイズを変更することなく、出力特性を適宜に変更調整することができる。 Furthermore, for example, by changing the two unit permanent magnets 41 to unit permanent magnets having different magnetic flux densities, the output characteristics can be appropriately changed and adjusted without changing the size of the motor 1.
上記実施形態によれば以下の効果を有する。
(1)本実施形態によれば、第1ロータコア20と第2ロータコア30との間に挟持される環状界磁部材40を、複数(2個)の単位永久磁石41を重ね合わせて構成した。そして、単位永久磁石41の個数を変更し環状界磁部材40の厚さを調整することで、ロータ11の軸方向の長さを調整し適正化することができるようにした。
The above embodiment has the following effects.
(1) According to the present embodiment, the annular field member 40 sandwiched between the first rotor core 20 and the second rotor core 30 is configured by overlapping a plurality (two) of unit permanent magnets 41. Then, by changing the number of unit permanent magnets 41 and adjusting the thickness of the annular field member 40, the axial length of the rotor 11 can be adjusted and optimized.
従って、単位永久磁石41という1種類の永久磁石部品を用意するだけで、種々異なるサイズのロータ11に対応できる。その結果、1種類の永久磁石部品となることから、部品管理が容易となるとともに部品の均一適正化を図ることができる。 Therefore, it is possible to cope with the rotors 11 of various sizes by preparing only one type of permanent magnet component called the unit permanent magnet 41. As a result, since it becomes one kind of permanent magnet parts, parts management becomes easy and uniform optimization of the parts can be achieved.
(2)本実施形態によれば、環状界磁部材40を、複数の単位永久磁石41を重ね合わせて構成した。すなわち、環状界磁部材(永久磁石)40の厚さ(軸方向の長さ)を、複数の単位永久磁石41にて厚くすることができる。 (2) According to this embodiment, the annular field member 40 is configured by superposing a plurality of unit permanent magnets 41. That is, the thickness (axial length) of the annular field member (permanent magnet) 40 can be increased by the plurality of unit permanent magnets 41.
従って、製造が難しくコストの高い厚い1つの永久磁石を環状界磁部材として使用する必要がないことから、出力を落とすことなくコストダウンを図ることができる。
(3)また、本実施形態によれば、環状界磁部材40を、2個の単位永久磁石41をそれぞれ異なる磁束密度を有する単位永久磁石41を用いることで、モータ1のサイズを変更することなく、出力特性を適宜に変更調整することができる。
Therefore, it is not necessary to use a single thick permanent magnet that is difficult to manufacture and has a high cost as an annular field member, so that the cost can be reduced without reducing the output.
(3) Moreover, according to this embodiment, the size of the motor 1 is changed by using the annular field member 40 and the unit permanent magnets 41 having different magnetic flux densities from the two unit permanent magnets 41. The output characteristics can be appropriately changed and adjusted.
なお、上記実施形態は以下のように変更して実施してもよい。
・上記実施形態では、環状界磁部材40を2個の単位永久磁石41で構成したが、これに限定されるものではなく、ロータのサイズに合わせて、3個、それ以上の個数を重ね合わせて実施してもよい。
In addition, you may implement the said embodiment as follows.
In the above embodiment, the annular field member 40 is composed of the two unit permanent magnets 41. However, the present invention is not limited to this, and three or more pieces are overlapped according to the size of the rotor. May be implemented.
また、本実施形態では、単位永久磁石41は、厚さが同じ1種類の物であったが、厚さが異なる複数種類の単位永久磁石を用意し、これらを適宜組み合わせて重ね合わせることによって、ロータの軸方向の長さを精度よく微調整することができる。 Further, in the present embodiment, the unit permanent magnet 41 is one type having the same thickness, but a plurality of types of unit permanent magnets having different thicknesses are prepared, and these are appropriately combined and overlapped. The axial length of the rotor can be finely adjusted with high accuracy.
・上記実施形態では、環状界磁部材40を2個の単位永久磁石41で構成した。これを、図6に示すように、1つの単位永久磁石41の両側に第1及び第2ロータコア20,30と同じ磁性材料よりなる磁性部材42を配置して実施してもよい。なお、この場合、磁性部材42は、第1及び第2ロータコア20,30と異なる、例えば高透磁率の磁性材料に変更して実施してもよい。これによって、モータ1の出力向上を図るようにして実施してもよい。 In the above embodiment, the annular field member 40 is constituted by the two unit permanent magnets 41. This may be carried out by arranging magnetic members 42 made of the same magnetic material as the first and second rotor cores 20 and 30 on both sides of one unit permanent magnet 41 as shown in FIG. In this case, the magnetic member 42 may be changed to a magnetic material having a high permeability, for example, different from the first and second rotor cores 20 and 30. Thus, the output of the motor 1 may be improved.
・上記実施形態では、環状界磁部材40を2個の単位永久磁石41で構成した。これを、図7に示すように、2個の単位永久磁石41を用意し、その2個の単位永久磁石41の間に、第1及び第2ロータコア20,30と同じ磁性材料よりなる磁性部材43を配置して実施してもよい。なお、この場合も同様に、磁性部材43は、第1及び第2ロータコア20,30と異なる、例えば高透磁率の磁性材料に変更して実施してもよい。これによって、モータ1の出力向上を図るようにして実施してもよい。 In the above embodiment, the annular field member 40 is constituted by the two unit permanent magnets 41. As shown in FIG. 7, two unit permanent magnets 41 are prepared, and a magnetic member made of the same magnetic material as the first and second rotor cores 20 and 30 is provided between the two unit permanent magnets 41. For example, 43 may be arranged. In this case as well, the magnetic member 43 may be changed to a magnetic material having a high permeability, for example, different from the first and second rotor cores 20 and 30. Thus, the output of the motor 1 may be improved.
1…モータ、2…モータケース、3…筒状ハウジング、4…フロントエンドプレート、5…回路収容ボックス、6…ステータ、7…電機子コア、7a…ティース、8…セグメントコンダクタ巻線、11…ロータ、12…回転軸、13,14…軸受、20…第1ロータコア、21…第1コアベース、21a…対向面、21b…反対向面、22…第1爪状磁極、22a、22b…周方向端面、22c…先端面、30…第2ロータコア、31…第2コアベース、31a…対向面、31b…反対向面、32…第2爪状磁極、32a、32b…周方向端面、32c…先端面、40…環状界磁部材、41…単位永久磁石、42,43…磁性部材。 DESCRIPTION OF SYMBOLS 1 ... Motor, 2 ... Motor case, 3 ... Cylindrical housing, 4 ... Front end plate, 5 ... Circuit accommodation box, 6 ... Stator, 7 ... Armature core, 7a ... Teeth, 8 ... Segment conductor winding, 11 ... Rotor, 12 ... rotating shaft, 13, 14 ... bearing, 20 ... first rotor core, 21 ... first core base, 21a ... facing surface, 21b ... anti-facing surface, 22 ... first claw-shaped magnetic pole, 22a, 22b ... circumference End face in direction, 22c ... tip face, 30 ... second rotor core, 31 ... second core base, 31a ... opposing face, 31b ... opposite face, 32 ... second claw-shaped magnetic pole, 32a, 32b ... circumferential end face, 32c ... Front end surface, 40 ... annular field member, 41 ... unit permanent magnet, 42, 43 ... magnetic member.
Claims (3)
略円盤状の第2コアベースの外周部に、等間隔に複数の第2爪状磁極が径方向外側に突出されるとともに軸方向に延出形成され、前記第2爪状磁極がそれぞれ対応する前記第1ロータコアの各第1爪状磁極間に配置された第2ロータコアと、
前記第1コアベースと第2コアベースとの軸方向の間に配置され、前記軸方向に磁化されることで、前記第1爪状磁極を第1の磁極として機能させ、前記第2爪状磁極を第2の磁極として機能させる界磁部材と
を備えたロータであって、
前記界磁部材は、複数の永久磁石を軸方向に重ねて構成され、
前記複数の永久磁石は、磁束密度の異なる永久磁石を含むことを特徴とするロータ。 A first rotor core having a plurality of first claw-shaped magnetic poles protruding radially outward and extending in the axial direction at an outer peripheral portion of a substantially disc-shaped first core base;
A plurality of second claw-shaped magnetic poles protrude radially outward and extend in the axial direction on the outer peripheral portion of the substantially disc-shaped second core base, and the second claw-shaped magnetic poles correspond to each other. A second rotor core disposed between the first claw-shaped magnetic poles of the first rotor core;
The first claw-shaped magnetic pole is arranged between the first core base and the second core base and is magnetized in the axial direction so that the first claw-shaped magnetic pole functions as the first magnetic pole, and the second claw-shaped A rotor having a magnetic field member that functions as a second magnetic pole,
The field member is configured by overlapping a plurality of permanent magnets in the axial direction,
The plurality of permanent magnets include permanent magnets having different magnetic flux densities.
略円盤状の第2コアベースの外周部に、等間隔に複数の第2爪状磁極が径方向外側に突出されるとともに軸方向に延出形成され、前記第2爪状磁極がそれぞれ対応する前記第1ロータコアの各第1爪状磁極間に配置された第2ロータコアと、
前記第1コアベースと第2コアベースとの軸方向の間に配置され、前記軸方向に磁化されることで、前記第1爪状磁極を第1の磁極として機能させ、前記第2爪状磁極を第2の磁極として機能させる界磁部材と
を備えたロータであって、
前記界磁部材は、複数の永久磁石を軸方向に重ねて構成され、
前記複数の永久磁石は、厚さの異なる永久磁石を含むことを特徴とするロータ。 A first rotor core having a plurality of first claw-shaped magnetic poles protruding radially outward and extending in the axial direction at an outer peripheral portion of a substantially disc-shaped first core base;
A plurality of second claw-shaped magnetic poles protrude radially outward and extend in the axial direction on the outer peripheral portion of the substantially disc-shaped second core base, and the second claw-shaped magnetic poles correspond to each other. A second rotor core disposed between the first claw-shaped magnetic poles of the first rotor core;
The first claw-shaped magnetic pole is arranged between the first core base and the second core base and is magnetized in the axial direction so that the first claw-shaped magnetic pole functions as the first magnetic pole, and the second claw-shaped A rotor having a magnetic field member that functions as a second magnetic pole,
The field member is configured by overlapping a plurality of permanent magnets in the axial direction,
The plurality of permanent magnets include permanent magnets having different thicknesses.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012030750A JP5944683B2 (en) | 2012-02-15 | 2012-02-15 | Rotor and motor |
CN201310044266.1A CN103259353B (en) | 2012-02-15 | 2013-02-04 | Rotor and motor |
CN201710624093.9A CN107370262B (en) | 2012-02-15 | 2013-02-04 | Rotor and motor |
DE102013002182A DE102013002182A1 (en) | 2012-02-15 | 2013-02-06 | Rotor and motor |
US13/761,741 US9166449B2 (en) | 2012-02-15 | 2013-02-07 | Rotor and motor |
US14/812,110 US9774222B2 (en) | 2012-02-15 | 2015-07-29 | Rotor and motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012030750A JP5944683B2 (en) | 2012-02-15 | 2012-02-15 | Rotor and motor |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016001154A Division JP2016096719A (en) | 2016-01-06 | 2016-01-06 | Rotor and motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013169071A JP2013169071A (en) | 2013-08-29 |
JP5944683B2 true JP5944683B2 (en) | 2016-07-05 |
Family
ID=49179045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012030750A Active JP5944683B2 (en) | 2012-02-15 | 2012-02-15 | Rotor and motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5944683B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10270306B2 (en) | 2014-01-29 | 2019-04-23 | Denso Corporation | Motor and rotor |
JP6330216B2 (en) * | 2014-02-13 | 2018-05-30 | 株式会社デンソー | Rotor and motor |
JP6435758B2 (en) * | 2014-10-01 | 2018-12-12 | 株式会社デンソー | motor |
DE102015004669A1 (en) | 2014-04-15 | 2016-02-18 | Asmo Co., Ltd. | ENGINE |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6377362A (en) * | 1986-09-19 | 1988-04-07 | Hitachi Ltd | Magnet field type ac generator |
JPH1189143A (en) * | 1997-09-11 | 1999-03-30 | Hitachi Ltd | Permanent magnet type rotor |
JPH1198729A (en) * | 1997-09-18 | 1999-04-09 | Fanuc Ltd | Rotor structure of synchronous motor |
JP2000209825A (en) * | 1999-01-08 | 2000-07-28 | Isuzu Motors Ltd | Permanent magnet generator |
JP2002136091A (en) * | 2000-10-18 | 2002-05-10 | Akebono Brake Res & Dev Center Ltd | Brushless dc motor |
JP5347587B2 (en) * | 2009-03-10 | 2013-11-20 | 株式会社デンソー | Claw pole type motor |
CN101882821B (en) * | 2009-05-06 | 2012-05-16 | 精进电动科技(北京)有限公司 | Alternating current claw-pole motor |
-
2012
- 2012-02-15 JP JP2012030750A patent/JP5944683B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2013169071A (en) | 2013-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4692090B2 (en) | Axial air gap type electric motor | |
JP6460159B2 (en) | Rotor and motor | |
JP5944683B2 (en) | Rotor and motor | |
JP6001379B2 (en) | Rotor and motor | |
JP5869306B2 (en) | Rotor and motor | |
JP5826596B2 (en) | Rotor and motor | |
JP2013099096A (en) | Rotor and motor | |
US9276444B2 (en) | Rotor and motor | |
JP2013059178A (en) | Magnetic gear | |
JP5801693B2 (en) | motor | |
JP5855903B2 (en) | Rotor and motor | |
JP2013169073A (en) | Rotor and motor | |
JP5814160B2 (en) | Rotor and motor | |
JP6062991B2 (en) | Rotor and motor | |
JP2009273231A (en) | Hybrid exciting motor | |
JP2016096719A (en) | Rotor and motor | |
JP5830353B2 (en) | Rotor and motor | |
JP6001380B2 (en) | Rotor and motor | |
JP5814159B2 (en) | Rotor and motor | |
JP5840919B2 (en) | Rotor and motor | |
JP6181784B2 (en) | Rotor and motor | |
JP5865106B2 (en) | Rotor and motor | |
JP6662008B2 (en) | Stator, motor, and stator manufacturing method | |
JP2016042789A (en) | Rotor and motor | |
JP2015080282A (en) | Rotor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140825 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20150422 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20150428 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150612 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20151124 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160106 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160524 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160526 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5944683 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |