WO2012101961A1 - 回転検出器用ステータの巻線方法とその巻線構造体及び回転検出器を用いた電動機 - Google Patents
回転検出器用ステータの巻線方法とその巻線構造体及び回転検出器を用いた電動機 Download PDFInfo
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- WO2012101961A1 WO2012101961A1 PCT/JP2012/000075 JP2012000075W WO2012101961A1 WO 2012101961 A1 WO2012101961 A1 WO 2012101961A1 JP 2012000075 W JP2012000075 W JP 2012000075W WO 2012101961 A1 WO2012101961 A1 WO 2012101961A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K24/00—Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
Definitions
- the present invention relates to a winding method for a rotation detector stator, a winding structure thereof, and an electric motor using the rotation detector.
- FIG. 9 shows a configuration diagram of a stator winding method described in Patent Document 1.
- the output winding 101 and the output winding 101 having different phases are wound around a plurality of slots formed by a plurality of magnetic poles.
- the output winding 101 is wound every other slot with respect to the slot.
- An output winding 102 is wound around all the slots so as to overlap the output winding 101.
- Overlying the output winding 102 the output winding 101 is wound around the remaining slots that are not wound in the lowermost layer. That is, when the winding cross section of each slot is viewed, the winding order of the output winding 101 and the output winding 102 is alternately changed in adjacent slots.
- a conventional rotation detector stator includes a stator core 103.
- the output winding 101 and the output winding 102 can be arranged in a non-aligned manner, and variations in the output signal A output by the output winding 101 and the output signal B output by the output winding 102 are reduced and rotated.
- the angle detection accuracy could be improved.
- the winding method of the stator for a rotation detector according to the present invention is a ring-shaped whole, and a stator core having a plurality of magnetic poles arranged at regular intervals in the circumferential direction and protruding to either the inner diameter side or the outer diameter side
- a second output winding having a phase difference of 90 degrees with respect to the first output winding and the first output winding wound in the formed slot is wound.
- the number of turns N1 (s) of the first output winding and the number of turns N2 (s) of the second output winding are distributed sinusoidally with respect to the slots.
- the number of turns N1 (s) of the first output winding is divided into the number of turns N1a (s) and the number of turns N1b (s) at a division ratio ⁇ of the total number of turns.
- a lower layer first output winding having the number of turns N1a (s) is continuously wound on all slots in the lowermost layer, and a second output winding is continuously wound on all slots on the lower layer first output winding.
- An upper layer first output winding of the number of turns N1b (s) is continuously wound around all slots on the second output winding.
- the division ratio ⁇ is changed only at one or a plurality of arbitrary slots.
- the first output winding is divided and wound by an arbitrary division ratio ⁇ , and the division ratio of an arbitrary slot is adjusted, so that the chain of the first output winding and the second output winding is adjusted.
- the degree of contribution to the magnetic flux can be adjusted, and variations in the output signal A and the output signal B can be reduced. Therefore, variations in the angle signal generated by the output signal A and the output signal B can be reduced, and the accuracy of the detected angle can be improved.
- FIG. 1 is a view showing a rotation detector stator according to Embodiment 1 of the present invention.
- FIG. 2 is a diagram showing the number of turns of the output winding of the rotation detector stator according to the first embodiment of the present invention.
- FIG. 3 is a configuration diagram of a winding method for the rotation detector stator according to the first embodiment of the present invention.
- 4 is a cross-sectional view taken along line 4-4 of FIG.
- FIG. 5 is a diagram showing the turn number distribution of the output winding 1 when the split ratio ⁇ of the winding of the rotation detector stator according to the first embodiment of the present invention is changed in a sine wave form.
- FIG. 6 is a structural diagram showing a cross section of the electric motor according to Embodiment 1 of the present invention.
- FIG. 7 is a cross-sectional view of the output winding of the rotation detector stator according to the second embodiment of the present invention.
- FIG. 8 is a winding cross-sectional view of the output winding of the rotation detector stator according to the third embodiment of the present invention.
- FIG. 9 is a configuration diagram of a conventional winding method for a stator for a rotation detector.
- FIG. 1 shows a rotation detector stator according to Embodiment 1 of the present invention.
- the rotation detector stator according to the first embodiment of the present invention includes a stator core 3, windings (not shown), and an insulator 6.
- the stator core 3 has a ring shape as a whole, and includes a plurality of magnetic poles 4 arranged in the circumferential direction at regular intervals and projecting to either the inner diameter side or the outer diameter side.
- the winding is wound around a slot 5 formed by the magnetic pole 4.
- the insulator 6 is installed so as to cover the stator core 3 from both end surfaces in the axial direction, and electrically insulates the stator core 3 and the winding.
- the winding is an output winding 1 (first output winding) that generates a sinusoidal output signal A according to the rotation angle, and 90 for the output signal A. It comprises an output winding 2 (second output winding) that generates a sine wave-like output signal B that is out of phase.
- the number of turns is distributed in a sine wave form for each slot so as to generate the output signal A and the output signal B.
- FIG. 2 shows the number of turns of the output winding.
- the winding number distribution shown in FIG. 2 is an example, and the phase of the output winding 1 and the output winding 2 only needs to be shifted by 90 °.
- FIG. 3 shows a block diagram of a winding method for the rotation detector stator according to the first embodiment of the present invention.
- the output winding 1 has a winding number N1 (s) distributed sinusoidally for each slot, and the output winding 1a (the lower layer first) having the number N1a (s) of turns with a constant division ratio ⁇ . 1 output winding) and an output winding 1b (upper layer first output winding) having the number of turns N1b (s).
- the output winding 1a having the number of turns N1a (s) is continuously wound around all the slots in the lowermost layer, and the output winding 2 is continuously wound around all the slots so as to overlap therewith.
- the output winding 1b having the number of turns N1b (s) is wound around all the slots continuously on the output winding 2.
- the winding end of the output winding 1a and the winding start of the output winding 1b are electrically connected.
- FIG. 4 shows a cross-sectional view taken along line 4-4 of FIG.
- the winding method of the rotation detector stator according to the first embodiment of the present invention includes the output winding 1 b and the output winding 1 a in the upper and lower layers of the output winding 2 with respect to the stator core 3.
- the output winding 1 a and the output winding 1 b sandwich the output winding 2.
- An insulator 6 is disposed between the stator core 3 and the output winding 1a.
- the division ratio ⁇ is adjusted according to the position where the detection accuracy deteriorates, and the ratio of the number of turns N1a (s) and the number of turns N1b (s) is changed for each slot.
- FIG. 5 shows the turn distribution of the output winding 1 when the division ratio ⁇ is changed to a sine wave shape.
- the output winding 1 can be divided into the output winding 1a and the output winding 1b at an equal ratio to the slot by changing the division ratio ⁇ to a sine wave.
- the winding method and structure in the stator for rotation detector according to the present invention are configured as described above, the following effects can be obtained. That is, by adjusting the division ratio ⁇ , it is possible to adjust the contribution to the interlinkage magnetic flux of the output winding 1 and the output winding 2 and the impedance of the winding, and individually adjust the position where the detection accuracy deteriorates. Can do. Thereby, the detection accuracy of the rotation angle can be improved by reducing the variation between the output signal 1 and the output signal 2.
- FIG. 6 is a structural diagram showing a cross section of the electric motor according to Embodiment 1 of the present invention.
- the electric motor according to the present embodiment uses the rotation detector stator shown in FIG. 1 as a stator.
- the electric machine will be described using a brushless motor as an example.
- an example of an inner rotor type electric motor in which a rotor is rotatably arranged on the inner peripheral side of a stator will be described.
- the stator core 34 is wound with a stator winding 35 as an output winding through an insulator 36 which is a resin that insulates the stator core 34.
- a stator core 34 is molded with an insulating resin 33 as a molding material together with other fixing members.
- the stator (rotation detector stator) 10 whose outer shape is substantially cylindrical is formed by integrally molding these members in this way.
- a rotor 14 is inserted inside the stator 10 through a gap.
- the rotor 14 includes a disk-shaped rotating body 30 including the rotor core 31 and a shaft 37 to which the rotating body 30 is fastened so as to penetrate the center of the rotating body 30.
- the rotor core 31 holds a plurality of permanent magnets in the circumferential direction facing the inner peripheral side of the stator 10.
- FIG. 6 shows a configuration example in which the rotor core 31 and the ferrite resin magnet 32 that is a permanent magnet are integrally formed. In this manner, the inner peripheral side of the stator 10 and the outer peripheral side of the rotating body 30 are arranged to face each other.
- the bearing 15 is a cylindrical bearing having a plurality of iron balls, and the inner ring side of the bearing 15 is fixed to the shaft 37.
- the bearing 15a supports the shaft 37 on the output shaft side where the shaft 37 protrudes from the brushless motor body, and the bearing 15b supports the shaft 37 on the opposite side.
- the outer shaft side of the output shaft side bearing 15a is fixed by a conductive metal bracket 17.
- the outer ring side of the bearing 15b on the side opposite to the output shaft is fixed by an insulating resin 33 that is molded integrally with the mold.
- FIG. 7 shows a winding cross-sectional view of the output winding according to Embodiment 2 of the present invention.
- the winding method of the rotation detector stator according to the second embodiment of the present invention includes the number N11 (s) of the output winding 11 (first output winding) and the output winding 12 (first winding).
- the number of turns N12 (s) of the two output windings is distributed in a sine wave shape for each slot.
- the number of turns N11 (s) is divided into an output winding 11a (lower layer first output winding) having the number N11a (s) and an output winding 11b (upper layer first output winding) having the number N11b (s) by the division ratio ⁇ .
- an output winding 11a having a winding number N11a (s) is continuously wound around all the slots in the lowermost layer with the insulator 16 interposed therebetween.
- the output winding 12 is wound around all the slots continuously on the output winding 11a.
- An output winding 11b having a number of turns N11b (s) is wound around all the slots continuously on the output winding 12. The winding end of the output winding 11a and the winding start of the output winding 11b are electrically connected.
- the contribution with respect to the interlinkage magnetic flux of the output winding 12 is large with respect to the output winding 11, the contribution to the interlinkage magnetic flux of the output winding 11a by winding the output winding 11 many times in the first layer. And the contribution of the output winding 11 and the output winding 12 to the interlinkage magnetic flux can be made uniform. Thereby, the detection accuracy of the rotation angle can be improved by reducing the variation between the output signal A and the output signal B.
- FIG. 8 shows a winding cross-sectional view of the output winding according to Embodiment 3 of the present invention.
- the winding method of the rotation detector stator according to the third embodiment of the present invention includes the number N21 (s) of the output winding 21 (first output winding) and the output winding 22 (first winding).
- the number of turns N22 (s) of the two output windings is distributed in a sine wave shape for each slot.
- the number of turns N21 (s) is divided into an output winding 21a (lower layer first output winding) having the number N21a (s) and an output winding 21b (upper layer first output winding) having the number N21b (s) by the division ratio ⁇ .
- the number of turns N21a (s) is smaller than the number of turns N21b (s).
- the output winding 21a having the number of turns N21a (s) is wound continuously in all slots on the lowermost layer with the insulator 26 interposed therebetween.
- the output winding 22 is wound around all the slots continuously on the output winding 21a.
- the output winding 21b having the number N21b (s) of windings is wound around all the slots continuously on the output winding 22.
- the winding end of the output winding 21a and the winding start of the output winding 21b are electrically connected.
- the contribution with respect to the interlinkage magnetic flux of the output winding 21 with respect to the output winding 22 is large, the contribution to the interlinkage magnetic flux of the output winding 21a by winding the output winding 21 many times in the third layer. And the contribution of the output winding 21 and the output winding 22 to the interlinkage magnetic flux can be made uniform. Thereby, the detection accuracy of the rotation angle can be improved by reducing the variation between the output signal A and the output signal B.
- first, second, and third embodiments are merely examples, and the present invention is not limited to these, and can be changed as appropriate.
- the stators of the first, second, and third embodiments are the inner rotor type in which a plurality of stator teeth (magnetic poles) are provided on the inner peripheral surface side of the stator core, but the stator of the present invention is not limited to this.
- An outer rotor type in which a plurality of stator teeth are provided on the outer peripheral surface side of the stator core may be used.
- stator teeth provided on the stator core is not limited to the twelve shown in the first, second, and third embodiments, and may be more or less than this.
- the stators of the first, second, and third embodiments are wound around only the output winding, but are variable reluctance type resolvers that are wound around an excitation winding that generates an excitation signal below the output winding. There may be.
- the winding method of the rotation detector stator according to the present invention has a ring shape as a whole, and a plurality of magnetic poles 4 arranged at regular intervals in the circumferential direction and projecting to either the inner diameter side or the outer diameter side.
- An output winding 1 wound around a slot 5 formed by a magnetic pole 4 and an output winding 2 having a phase difference of 90 degrees with respect to the output winding 1 are wound around the stator core 3 provided.
- the number of turns N1 (s) of the output winding 1 and the number of turns N2 (s) of the output winding 2 are distributed sinusoidally with respect to the slots.
- the number of turns N1 (s) of the output winding 1 is divided into the number of turns N1a (s) and the number of turns N1b (s) at a division ratio ⁇ of the total number of turns.
- the output winding 1a having the number of turns N1a (s) is continuously wound on all slots in the lowermost layer, and the output winding 2 is continuously wound on all slots on the output winding 1a.
- the output winding 1b having the number of turns N1b (s) is continuously wound around all the slots on the output winding 2.
- the division ratio ⁇ is changed only at one or a plurality of arbitrary slots.
- the division ratio ⁇ the distance between the magnetic flux flowing in the magnetic pole and the output winding 1 and the output winding 2 can be adjusted, and the contribution of the output winding 1 and the output winding 2 to the interlinkage magnetic flux.
- the degree can be adjusted. Therefore, the contribution of the output winding 1 and the output winding 2 to the interlinkage magnetic flux can be made uniform over the entire slot, and the output signal A generated by the output winding 1 and the output winding 2 generate it.
- the variation in the output signal B to be performed can be reduced.
- the chain of the output winding 1 and the output winding 2 is changed by changing only the slot division ratio ⁇ corresponding to the angle at which the detection accuracy deteriorates.
- the degree of contribution to the magnetic flux can be adjusted in detail. Thereby, the variation of the output signal A and the output signal B can be reduced, and the detection angle accuracy can be improved.
- the division ratio ⁇ changes sinusoidally with respect to the slot 5, and the number distribution of turns N1 (s) of the output winding 1 with respect to the slot 5 is equal to the change of the division ratio ⁇ with respect to the slot. Is preferred.
- the output winding 1 Since the output winding 1 has a number of turns N1 (s) distributed in a sine wave pattern with respect to the slot 5, if the slot 5 is divided at a constant value, the output winding 1a and the magnetic pole 4 of the output winding 1b are positioned. The relationship depends on the slot 5. As a result, the degree of contribution to the flux linkage differs from slot to slot, and the variation between the output signal A and the output signal B increases. For this reason, the ratio of the number of turns of the output winding 1 to the slot 5 is equal to the distribution of the number of turns N1 (s) of the output winding 1 with respect to the slot 5 and the change of the division ratio ⁇ to the slot 5. Can be equal.
- the degree of contribution of the output winding 1 and the output winding 2 to the interlinkage magnetic flux can be adjusted in detail, the variation between the output signal A and the output signal B can be reduced, and the accuracy of the detection angle can be reduced. It can be improved.
- the output winding 1 is wound so that the number of turns N1a (s) is larger than the number of turns N1b (s).
- the output winding 1 When the contribution to the interlinkage magnetic flux of the output winding 1 is smaller than the contribution to the interlinkage magnetic flux of the output winding 2, the output winding 1 is set so that the number of turns N1a (s) is larger than the number of turns N1b (s). By winding, the output winding 1 can be wound many times near the magnetic pole 4. As a result, the contribution of the output winding 1 to the interlinkage magnetic flux is relatively large with respect to the contribution of the output winding 2, and the balance with the contribution of the output winding 2 to the interlinkage magnetic flux can be adjusted. it can. For this reason, variations in the output signal A and the output signal B can be reduced, and the accuracy of the detection angle can be improved.
- the output winding 1 is wound so that the number of turns N1a (s) is smaller than the number of turns N1b (s).
- the output winding 1 When the contribution of the output winding 1 to the interlinkage magnetic flux is greater than the contribution of the output winding 2 to the interlinkage magnetic flux, the output winding 1 is such that the number of turns N1a (s) is less than the number of turns N1b (s). As a result, the output winding 1 can be wound many times away from the magnetic pole 4. As a result, the contribution of the output winding 1 to the interlinkage magnetic flux becomes relatively small relative to the contribution of the output winding 2, and the balance with the contribution of the output winding 2 to the interlinkage magnetic flux can be adjusted. it can. For this reason, variations in the output signal A and the output signal B can be reduced, and the accuracy of the detection angle can be improved.
- the winding structure of the stator for rotation detector according to the present invention has a ring shape as a whole, and is provided with a plurality of magnetic poles 4 arranged at regular intervals in the circumferential direction and projecting to either the inner diameter side or the outer diameter side. Further, an output winding 1 wound around a slot 5 formed by the magnetic pole 4 and an output winding 2 having a phase difference of 90 degrees with respect to the output winding 1 are wound.
- the number of turns N1 (s) of the output winding 1 and the number of turns N2 (s) of the output winding 2 are distributed sinusoidally with respect to the slot 5, and the number of turns N1 (s) of the output winding 1 is a division of the total number of turns.
- An output winding 1b having the number N1b (s) of windings wound continuously on all the slots on the line 2 is provided, and the division ratio ⁇ is changed only at one or a plurality of arbitrary slots.
- the stator for a rotation detector of the present invention can be mounted on various electric devices as a rotation detector, for example.
- the stator for a rotation detector of the present invention can be used as a resolver that detects the rotation angle of the rotation shaft of a motor.
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Abstract
Description
図1は、本発明の実施の形態1に係る回転検出器用ステータを示している。図1に示すように、本発明の実施の形態1に係る回転検出器用ステータは、ステータコア3と、巻線(図示せず)と、インシュレータ6とを備える。ステータコア3は、全体が輪状であり、周方向に一定の間隔で複数配置され内径側及び外径側のどちらかに突出した磁極4を備える。巻線は、磁極4により形成されたスロット5に巻き回される。インシュレータ6は、ステータコア3を軸方向両端面から覆うように設置され、ステータコア3と巻線とを電気的に絶縁する。また、図1では巻線を省略しているが、巻線は回転角度に応じて正弦波状の出力信号Aを発生させる出力巻線1(第1出力巻線)と出力信号Aに対して90度位相がずれた正弦波状の出力信号Bを発生させる出力巻線2(第2出力巻線)から構成される。出力巻線1及び出力巻線2は出力信号A及び出力信号Bを発生させるように各スロットに対して巻数が正弦波状に分布している。図2は出力巻線の巻数分布を示している。ただし、図2に示す巻数分布は一例であり、出力巻線1と出力巻線2の位相が90°ずれていればよい。
図7は、本発明の実施の形態2に係る出力巻線の巻線断面図を示している。図7に示すように、本発明の実施の形態2に係る回転検出器用ステータの巻線方法は、出力巻線11(第1出力巻線)の巻数N11(s)及び出力巻線12(第2出力巻線)の巻数N12(s)がそれぞれ各スロットに対して正弦波状に分布している。巻数N11(s)は分割比αによって巻数N11a(s)の出力巻線11a(下層第1出力巻線)と巻数N11b(s)の出力巻線11b(上層第1出力巻線)に分割されており、かつ巻数N11a(s)が巻数N11b(s)より多い。さらに、ステータコア13の各スロットにはインシュレータ16を挟んで最下層に巻数N11a(s)の出力巻線11aが全スロットに連続して巻き回されている。出力巻線11aの上に重ねて出力巻線12が全スロットに連続して巻き回されている。出力巻線12の上に重ねて巻数N11b(s)の出力巻線11bが全スロットに連続して巻き回されている。また、出力巻線11aの巻き終わりと出力巻線11bの巻き始めは電気的に接続されている。
図8は、本発明の実施の形態3に係る出力巻線の巻線断面図を示している。図8に示すように、本発明の実施の形態3に係る回転検出器用ステータの巻線方法は、出力巻線21(第1出力巻線)の巻数N21(s)及び出力巻線22(第2出力巻線)の巻数N22(s)がそれぞれ各スロットに対して正弦波状に分布している。巻数N21(s)は分割比αによって巻数N21a(s)の出力巻線21a(下層第1出力巻線)と巻数N21b(s)の出力巻線21b(上層第1出力巻線)に分割されており、かつ巻数N21a(s)が巻数N21b(s)より少ない。さらに、ステータコア23の各スロットには、インシュレータ26を挟んで最下層に巻数N21a(s)の出力巻線21aが全スロットに連続して巻き回されている。出力巻線21aの上に重ねて出力巻線22が全スロットに連続して巻き回されている。出力巻線22の上に重ねて巻数N21b(s)の出力巻線21bが全スロットに連続して巻き回されている。また、出力巻線21aの巻き終わりと出力巻線21bの巻き始めは電気的に接続されている。
2,12,22,102 出力巻線(第2出力巻線)
1a,11a,21a 出力巻線(下層出力巻線)
1b,11b,21b 出力巻線(上層出力巻線)
3,13,23,103 ステータコア
4 磁極(ステータティース)
5 スロット
6,16,26,36 インシュレータ
10 固定子(回転検出器用ステータ)
14 回転子
15,15a,15b 軸受
17 ブラケット
30 回転体
31 回転子鉄心
32 フェライト樹脂磁石
33 絶縁樹脂
34 固定子鉄心
35 固定子巻線
37 シャフト
Claims (7)
- 全体が輪状であり、周方向に一定の間隔で複数配置され内径側及び外径側のどちらかに突出した磁極を備えたステータコアに、前記磁極によって形成されたスロットに巻き回されている第1出力巻線と前記第1出力巻線に対して90度位相が異なる第2出力巻線とが巻き回されている回転検出器用ステータの巻線方法において、
前記第1出力巻線の巻数N1(s)及び前記第2出力巻線の巻数N2(s)は前記スロットに対して正弦波状に分布しており、前記第1出力巻線の巻数N1(s)は全体巻数の分割比αにて巻数N1a(s)と巻数N1b(s)に分割されており、最下層に前記巻数N1a(s)の下層第1出力巻線を前記全スロットに連続して巻き回し、前記下層第1出力巻線の上に重ねて前記第2出力巻線を前記全スロットに連続して巻き回し、前記第2出力巻線の上に前記巻数N1b(s)の上層第1出力巻線を前記全スロットに連続して巻き回している巻線方法であって、
前記分割比αは一箇所もしくは複数箇所の任意のスロットのみ比率を変えていることを特徴とした回転検出器用ステータの巻線方法。 - 前記分割比αは前記全スロットに対して正弦波状に変化することを特徴とした請求項1に記載の回転検出器用ステータの巻線方法。
- 前記巻数N1(s)が最大となるスロットと前記分割比αが最大となるスロットが等しくなることを特徴とした請求項2に記載の回転検出器用ステータの巻線方法。
- 前記巻数N1a(s)のほうが前記巻数N1b(s)より多くなるように前記第1出力巻線が前記分割比αによって分割されていることを特徴とした請求項1に記載の回転検出器用ステータの巻線方法。
- 前記巻数N1a(s)のほうが前記巻数N1b(s)より少なくなるように前記第1出力巻線が前記分割比αによって分割されていることを特徴とした請求項1に記載の回転検出器用ステータの巻線方法。
- 全体が輪状であり、周方向に一定の間隔で複数配置され内径側及び外径側のどちらかに突出した磁極を備えたステータコアに、前記磁極によって形成されたスロットに巻き回されている第1出力巻線と前記第1出力巻線に対して90度位相が異なる第2出力巻線とが巻き回されている回転検出器用ステータの巻線構造体において、
前記第1出力巻線の巻数N1(s)及び前記第2出力巻線の巻数N2(s)は前記スロットに対して正弦波状に分布しており、前記第1出力巻線の巻数N1(s)は全体巻数の分割比αにて巻数N1a(s)と巻数N1b(s)に分割されており、
最下層に前記全スロットに連続して巻き回した前記巻数N1a(s)の下層第1出力巻線と、
前記下層第1出力巻線の上に重ねて前記全スロットに連続して巻き回した前記第2出力巻線と、
前記第2出力巻線の上に前記全スロットに連続して巻き回した前記巻数N1b(s)の上層第1出力巻線を有し、
前記分割比αは一箇所もしくは複数箇所の任意のスロットのみ比率を変えていることを特徴とした回転検出器用ステータの巻線構造体。 - 請求項1に記載の巻線方法を用いた回転検出器を有する電動機。
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WO2011158415A1 (ja) * | 2010-06-18 | 2011-12-22 | パナソニック株式会社 | 回転検出器用ステータの巻線方法とその構造及び回転検出器を有する電動機 |
WO2013118966A1 (ko) * | 2012-02-10 | 2013-08-15 | 대성전기공업 주식회사 | 슬롯리스 레졸버, 그 제조방법 및 이에 이용되는 권선 도구 |
EP3205985B1 (en) * | 2012-11-19 | 2018-12-12 | LS Automotive Technologies Co., Ltd. | Stator used in resolvers, and resolver including same |
JP6052351B1 (ja) * | 2015-07-13 | 2016-12-27 | ダイキン工業株式会社 | 電機子、回転電機、クロスフローファン |
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