WO2014115500A1 - 単相誘導電動機とその製造治具および単相誘導電動機の製造方法 - Google Patents
単相誘導電動機とその製造治具および単相誘導電動機の製造方法 Download PDFInfo
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- WO2014115500A1 WO2014115500A1 PCT/JP2014/000109 JP2014000109W WO2014115500A1 WO 2014115500 A1 WO2014115500 A1 WO 2014115500A1 JP 2014000109 W JP2014000109 W JP 2014000109W WO 2014115500 A1 WO2014115500 A1 WO 2014115500A1
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
- H02K15/0442—Loop windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
Definitions
- the present invention relates to a single-phase induction motor, a manufacturing jig therefor, and a method for manufacturing a single-phase induction motor.
- FIG. 5 is a perspective view showing a stator of a conventional single-phase induction motor (lap winding).
- the single-phase induction motor includes a stator 103 having a stator core 105 provided with 24 slots 104.
- the stator 103 includes a stator core 105, insulating paper 106, a main coil 101, and an auxiliary coil 102.
- FIG. 6 is an exploded view of a conventional single-phase induction motor (lap winding). As shown in FIG. 6, the main coil 101 includes main coils 101a to 101f, and the auxiliary coil 102 includes auxiliary coils 102a to 102f.
- FIG. 7 is a side view of a conventional single-phase induction motor (lap winding)
- FIG. 8 is a perspective view showing a winding process using a winding frame of the single-phase induction motor (lap winding).
- the main coil 101 and the auxiliary coil 102 shown in FIG. 7 are prepared in advance by winding them around a bobbin-shaped winding frame 107 connected in series. That is, six main coils 101a to 101f and six auxiliary coils 102a to 102f shown in FIG. 6 are formed.
- the main coil 101 and the auxiliary coil 102 shown in FIG. 7 are formed by connecting one continuous line, 3 coils per pole, a total of 6 coils.
- FIG. 9A is a side view of a conventional single-phase induction motor (lap winding) winding frame
- FIG. 9B is a cross-sectional view taken along line 9B-9B of FIG. 9A.
- the wound winding 108 of FIG. 8 that becomes the main coil 101 and the auxiliary coil 102 of FIG. 7 is taken out by disassembling the winding frame 107. That is, the winding frame 107 shown in FIG. 9A is separated along the partition 107a, and the main coil 101 and the auxiliary coil 102 are taken out.
- stator core 105 and the main coil 101 and auxiliary coil 102 do not directly contact the slot 104 by using an insertion device (not shown). Is inserted from.
- an insulating paper 106 is inserted in the slot 104 in advance.
- the first main coil 101a is inserted into the first slot 104a and the tenth slot 104j.
- the second main coil 101b is inserted into the second slot 104b and the eleventh slot 104k.
- the fourth to sixth main coils are inserted into the thirteenth slot 104m to the fifteenth slot 104o and the twenty-second slot 104v to the twenty-fourth slot 104x symmetrically with the first to third main coils.
- the first auxiliary coil 102a is inserted into the seventh slot 104g and the sixteenth slot 104p. Similar to the main coil 101, the fourth to sixth auxiliary coils are arranged symmetrically with the first to third auxiliary coils.
- the main coil 101 and the auxiliary coil 102 shown in FIG. 5 created by the reel 107 shown in FIG. 8 have a width between the slots 104 to be inserted into the slot 104 and a height in the axial direction of the stator core 105. Created higher than that. After the main coil 101 and the auxiliary coil 102 are inserted into the slot 104, the winding protrudes from the axial end surface of the stator core 105 to form a coil end.
- the protruding coil ends are gathered together so as to be bundled manually.
- the coil ends are formed in an annular shape by being sandwiched in the axial direction by a press using a mold made of resin so as not to damage the main coil 101 and the auxiliary coil 102. Note that the main coil 101 and the auxiliary coil 102 are brought into contact with the rotor, the stator 103, and other metal parts so that the main coil 101 and the auxiliary coil 102 are disconnected and have poor insulation. This is to prevent it from happening.
- the main coil 101 and the auxiliary coil 102 are manufactured using the same size reels, a bundle of the main coil 101 and the auxiliary coil 102 having the same size can be formed.
- the coil ends of the main coil 101 and the auxiliary coil 102 have the same height from the end face of the stator core 105.
- the single-phase induction motor according to the present invention includes a pair of main coils and auxiliary coils as a pair, and a plurality of sets of main coils and auxiliary coils. Overlapping coils are formed. Further, one pole in the lap winding coil is composed of a plurality of sets of main coils or auxiliary coils. In the pole, the distance between the coil ends from one coil end of the main coil to the other coil end is different.
- the main coils can be bundled in the height direction when the coil end is formed.
- the molding operation of the coil end of the main coil is facilitated, and it is not necessary to loosen or pull the coil, thereby providing a high-quality single-phase induction motor.
- FIG. 1 is an exploded view of a winding of a single-phase induction motor according to an embodiment of the present invention.
- FIG. 2 is a side view of the single-phase induction motor.
- FIG. 3 is a perspective view showing a winding process using a winding frame of the single-phase induction motor.
- FIG. 4A is a side view of a winding frame used in the winding process of the single-phase induction motor.
- 4B is a cross-sectional view taken along line 4B-4B of FIG. 4A.
- 4C is a cross-sectional view taken along line 4C-4C of FIG. 4A.
- 4D is a cross-sectional view taken along line 4D-4D of FIG. 4A.
- FIG. 5 is a perspective view showing a stator of a conventional single-phase induction motor (lap winding).
- FIG. 6 is a winding development view of the single-phase induction motor (lap winding).
- FIG. 7 is a side view of the single-phase induction motor (lap winding).
- FIG. 8 is a perspective view showing a winding process using a winding frame of the single-phase induction motor (lap winding).
- FIG. 9A is a side view of a winding frame of the single-phase induction motor (lap winding).
- 9B is a cross-sectional view taken along line 9B-9B of FIG. 9A.
- FIG. 1 is an exploded view of a winding of a single-phase induction motor according to an embodiment of the present invention.
- a pair of the main coil 1 and the auxiliary coil 2 are paired with a stator core 5 provided with 24 slots 4 by overlapping winding,
- a lap coil 11 having a plurality of sets of main coils 1 and auxiliary coils 2 is formed.
- the stator core 5 is formed by laminating electromagnetic steel plates punched into a donut shape.
- a slot 4 is formed on the inner diameter side of the stator core 5.
- the slot 4 is provided with a main coil 1 and an auxiliary coil 2 via insulating paper 6.
- FIG. 2 is a side view of the single-phase induction motor according to the embodiment of the present invention.
- one pole 12 in the lap coil 11 includes a first main coil 1a, a second main coil 1b, a third main coil 1c, or auxiliary coils 2a, 2b and 2c.
- the distance between the coil ends from one coil end 13a, 13b, 13c of each of the first main coil 1a, the second main coil 1b, and the third main coil 1c to the other coil end 14a, 14b, 14c. 10a, 10b, and 10c are different from each other. That is, the distance 10a between the coil ends of the first main coil 1a is smaller than the distance 10b between the coil ends of the second main coil 1b.
- the distance 10b between the coil ends of the second main coil 1b is smaller than the distance 10c between the coil ends of the third main coil 1c.
- the inter-coil end distance 17 that is the distance from one coil end 15 to the other coil end 16 may be different.
- the insertion of the pole 12 into the slot 4 will be described with reference to FIGS.
- the third main coil 1c having a large inter-coil end distance 10c is inserted into the first slot 4a and the tenth slot 4j.
- the second main coil 1b is inserted into the second slot 4b and the eleventh slot 4k.
- the first main coil 1a is inserted into the third slot 4c and the twelfth slot 4l.
- the 4th main coil 1d, the 5th main coil 1e, and the 6th main coil 1f form the pole 12 which opposes.
- the fourth main coil 1d has a smaller coil end distance than the fifth main coil 1e.
- the fifth main coil 1e has a smaller coil end distance than the sixth main coil 1f.
- the sixth main coil 1f, the fifth main coil 1e, and the fourth main coil 1d are sequentially inserted into the predetermined slot 4 in the same manner as the opposing poles 12 described above.
- auxiliary coils 2 are also inserted into the predetermined slots 4 respectively.
- the coil ends 13, 14, 15, 16 of the inserted main coil 1 and auxiliary coil 2 are mixed in three different heights. Each height difference is larger than the coil bundle. That is, the difference between the coil end distances 10, 17 of the adjacent main coil 1 or auxiliary coil 2 is the thickness of the coil bundle determined by the number of turns.
- the main coil 1 includes a first main coil 1a, a second main coil 1b, and a third main coil 1c.
- the first main coil 1a and the second main coil 1b are adjacent to each other, and the second main coil 1b and the third main coil 1c are adjacent to each other.
- the coil end distance 10a of the first main coil 1a is smaller than the coil end distance 10b of the second main coil 1b.
- the distance 10b between the coil ends of the second main coil 1b is smaller than the distance 10c between the coil ends of the third main coil 1c.
- the distance 10b between the coil ends of the second main coil 1b is equal to or larger than the width of one bundle of the coil bundle of the second main coil 1b as compared with the distance 10a between the coil ends of the first main coil 1a. It is larger by the following length.
- the distance 10c between the coil ends of the third main coil 1c is equal to or greater than the width of one bundle of the coil bundle of the third main coil 1c compared to the distance 10b between the coil ends of the second main coil 1b. It is larger by the following length.
- the coil ends 13 and 14 are formed.
- the coil ends 13 and 14 are formed by superimposing the coil ends 13b and 14b having a medium height on the coil ends 13a and 14a having a low height, and arranging the coil ends 13c and 14c having the highest height to a medium height.
- the coil ends 13b and 14b are overlapped with each other.
- the above-described pole 12 will be described as an example.
- the second main coil 1b is overlaid on the first main coil 1a
- the third main coil 1c is overlaid on the second main coil 1b.
- the coil end does not protrude in the radial direction of the stator core, and the distribution of the coil end after forming is not biased manually.
- the shape of the coil end was trimmed.
- the coil ends 13, 14, 15, and 16 of the main coil 1 and the auxiliary coil 2 are arranged in advance in the stacking direction of the stator core 5 at each height (or (Downward), distributed evenly. Therefore, even if the coil ends 13, 14, 15, 16 are not shaped, the main coil 1 and the auxiliary coil 2 protrude to the inside or outside in the radial direction of the stator core 5 and are not sandwiched by the molding machine. That is, in the method of manufacturing the single-phase induction motor according to the present embodiment, it is not necessary to shape the coil ends 13, 14, 15, and 16, and the process can be simplified.
- the coil ends 13, 14, 15, 16 are less slack, an increase in resistance of the main coil 1 and the auxiliary coil 2 is suppressed as much as possible, and a decrease in motor performance due to copper loss is suppressed.
- FIG. 3 is a perspective view showing a winding process using a winding frame of the single-phase induction motor according to the embodiment of the present invention.
- the main coil 1 and the auxiliary coil 2 are wound by using six bobbin-shaped winding frames 7.
- the winding frame 7 used at the time of winding operation is composed of a plurality of bobbin portions 7b for winding the main coil 1 and the auxiliary coil 2 and a partition 7a for partitioning the bobbin portion 7b.
- FIG. 4A is a side view of a reel used in the winding process of the single-phase induction motor according to the embodiment of the present invention
- FIG. 4B is a sectional view taken along line 4B-4B in FIG. 4A
- FIG. 4C is a sectional view taken along line 4C-4C in FIG. 4D is a cross-sectional view taken along line 4D-4D of FIG. 4A.
- the reel 7 has the same width x and different height y, that is, three types of bobbin portions 7b having different circumferential lengths are arranged in a straight line, and between them It is partitioned off by a partition 7a.
- the reel 7 can be disassembled with the partition 7a as a boundary.
- the winding frame 7 has a plurality of sizes in order to make the distances 10a, 10b, 10c, and 17 between the coil ends different.
- the winding frame 7 of FIG. 3 is set in a winding machine, the winding frame 7 is rotated, and the winding 8 is wound up.
- the winding machine nozzle 9 moves to the adjacent bobbin portion 7b, and the creation of the next coil starts.
- the bobbin portions 7b are provided with large bobbin portions 7b at both ends, and are arranged so as to become smaller in order toward the center. That is, the main coil 1 (first main coil 1a to sixth main coil 1f) described above will be described as an example.
- the winding frame 7 has a third main coil 1c and a second main coil for each bobbin portion 7b. 1b, the first main coil 1a, the fourth main coil 1d, the fifth main coil 1e, and the sixth main coil 1f are wound in this order.
- the winding frame 7 is disassembled and the main coil 1 is taken out.
- the extracted main coil 1 is connected in the order of large-medium-small-small-medium-large.
- the main coil 1 is inserted into the slot 4 of the stator core 5 of FIG. 2, the main coil 1 is inserted into the slot 4 from the third main coil 1c and the sixth main coil 1f having large ends.
- the pole 12 is formed by being inserted into the slot 4 in order from the main coil 1 or the auxiliary coil 2 having a large distance between coil ends 10 and 17.
- the distances 10 and 17 between the coil ends are different, and the main coil 1 and the auxiliary coil 2 that are the same height and do not overlap are created.
- the coil is arranged so that the small coil fits inside the large coil, the coil ends are aligned and easy to form.
- the cross section of the coil bundle can be freely changed to some extent. Therefore, molding workability is not impaired, and the coil ends are stacked without any gap. As a result, an increase in copper loss is suppressed.
- the single-phase induction motor of the present invention can also be applied to a motor for driving a shallow well pump.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
図1は、本発明の実施の形態の単相誘導電動機の巻線展開図である。図1に示すように単相誘導電動機の固定子3には、24個のスロット4を設けた固定子鉄心5に、重ね巻により1対の主コイル1と補助コイル2とを1組とし、複数組の主コイル1と補助コイル2とが備えられた重ね巻きコイル11が形成されている。ここで固定子鉄心5は、ドーナツ型に打ち抜かれた電磁鋼板が積層されて形成されている。固定子鉄心5の内径側には、スロット4が形成されている。スロット4には、絶縁紙6を介して主コイル1、補助コイル2が設けられている。
1a 第1主コイル
1b 第2主コイル
1c 第3主コイル
1d 第4主コイル
1e 第5主コイル
1f 第6主コイル
2,2a,2b,2c 補助コイル
3 固定子
4 スロット
4a 第1スロット
4b 第2スロット
4c 第3スロット
4j 第10スロット
4k 第11スロット
4l 第12スロット
5 固定子鉄心
6 絶縁紙
7 巻枠
7a 仕切
7b ボビン部
8 巻線(主コイル又は補助コイル)
9 巻線機ノズル
10,10a,10b,10c,17 コイルエンド間距離
11 重ね巻きコイル
12 極
13,13a,13b,13c,14,14a,14b,14c,15,16 コイルエンド
Claims (7)
- 複数のスロットを設けた固定子鉄心に重ね巻により1対の主コイルと補助コイルとを1組とし、複数組の前記主コイルと前記補助コイルとが備えられた重ね巻きコイルが形成された単相誘導電動機において、
前記重ね巻きコイルにおける1つの極は複数組の前記主コイルまたは前記補助コイルから構成され、
前記極において前記主コイルの一方のコイルエンドから他方のコイルエンドまでのコイルエンド間距離がそれぞれ異なる単相誘導電動機。 - 前記極を構成する複数組の前記主コイルまたは前記補助コイルの巻回作業時に用いる巻枠において、前記巻枠は、前記コイルエンド間距離を異ならせるために複数の大きさを備えた請求項1記載の単相誘導電動機の製造治具。
- 前記極は、前記コイルエンド間距離が大きい前記主コイルまたは前記補助コイルから順に前記スロットに挿入して形成される請求項1記載の単相誘導電動機の製造方法。
- 隣接する前記主コイルまたは前記補助コイルの前記コイルエンド間距離の差は、巻数によって決まるコイル束の太さとした請求項1記載の単相誘導電動機。
- 前記主コイルは、第1主コイルと第2主コイルと第3主コイルとから構成され、
前記第1主コイルと前記第2主コイルとは隣り合い、
前記第2主コイルと前記第3主コイルとは隣り合い、
前記第1主コイルのコイルエンド間距離は、前記第2主コイルのコイルエンド間距離よりも小さく、
前記第2主コイルのコイルエンド間距離は、前記第3主コイルのコイルエンド間距離よりも小さい請求項1記載の単相誘導電動機。 - 前記第2主コイルのコイルエンド間距離は、前記第1主コイルのコイルエンド間距離と比較して前記第2主コイルのコイル束の1束分の幅以上2束分の幅以下の長さだけ大きく、
前記第3主コイルのコイルエンド間距離は、前記第2主コイルのコイルエンド間距離と比較して前記第3主コイルのコイル束の1束分の幅以上2束分の幅以下の長さだけ大きい請求項5記載の単相誘導電動機。 - さらに前記補助コイルの一方のコイルエンドから他方のコイルエンドまでのコイルエンド間距離が、それぞれ異なる請求項1記載の単相誘導電動機。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107437861A (zh) * | 2017-06-21 | 2017-12-05 | 佛山市三水日彩电器有限公司 | 节能直流变频单相高效电机外绕线组工艺 |
Citations (6)
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JPS55122460A (en) * | 1979-03-16 | 1980-09-20 | Hitachi Ltd | Method of installing coil of induction motor |
JPS55139062A (en) * | 1979-04-13 | 1980-10-30 | Shibaura Eng Works Co Ltd | Induction motor |
JPS614445A (ja) * | 1984-06-18 | 1986-01-10 | Hitachi Ltd | 回転電機 |
JPH04197063A (ja) * | 1990-11-28 | 1992-07-16 | Hitachi Ltd | コンデンサ誘導電動機 |
JPH07143712A (ja) * | 1993-11-19 | 1995-06-02 | Fujitsu General Ltd | コンデンサ誘導電動機 |
JP2011041377A (ja) * | 2009-08-07 | 2011-02-24 | Nidec Shibaura Corp | コンデンサ形単相誘導電動機 |
-
2014
- 2014-01-14 WO PCT/JP2014/000109 patent/WO2014115500A1/ja active Application Filing
- 2014-01-14 JP JP2014558484A patent/JPWO2014115500A1/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS55122460A (en) * | 1979-03-16 | 1980-09-20 | Hitachi Ltd | Method of installing coil of induction motor |
JPS55139062A (en) * | 1979-04-13 | 1980-10-30 | Shibaura Eng Works Co Ltd | Induction motor |
JPS614445A (ja) * | 1984-06-18 | 1986-01-10 | Hitachi Ltd | 回転電機 |
JPH04197063A (ja) * | 1990-11-28 | 1992-07-16 | Hitachi Ltd | コンデンサ誘導電動機 |
JPH07143712A (ja) * | 1993-11-19 | 1995-06-02 | Fujitsu General Ltd | コンデンサ誘導電動機 |
JP2011041377A (ja) * | 2009-08-07 | 2011-02-24 | Nidec Shibaura Corp | コンデンサ形単相誘導電動機 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107437861A (zh) * | 2017-06-21 | 2017-12-05 | 佛山市三水日彩电器有限公司 | 节能直流变频单相高效电机外绕线组工艺 |
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