WO2005101612A1 - 回転電機の固定子 - Google Patents
回転電機の固定子 Download PDFInfo
- Publication number
- WO2005101612A1 WO2005101612A1 PCT/JP2004/005197 JP2004005197W WO2005101612A1 WO 2005101612 A1 WO2005101612 A1 WO 2005101612A1 JP 2004005197 W JP2004005197 W JP 2004005197W WO 2005101612 A1 WO2005101612 A1 WO 2005101612A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- insulating member
- electric machine
- magnetic
- rotating electric
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles
Definitions
- the present invention relates to a stator for a rotating electric machine including an insulating member for insulatingly covering a salient pole of a laminated core around which a conductive wire is wound.
- a plurality of silicon steel sheets are laminated and configured to have a protruding portion that protrudes in a radial direction and a pair of magnetic pole portions extending from a tip end of the protruding portion to both sides in a circumferential direction.
- a plurality of salient poles formed at predetermined intervals in the circumferential direction; a plurality of the salient poles; an inner surface of a slot formed between two adjacent salient poles;
- An insulating member covering an end face located in the laminating direction of the above and a winding wire formed by winding a periphery of the protruding portion of the salient pole covered by the insulating member with a conductive wire are known.
- the shape of the insulating member around which the enameled wire is wound is a right angle at the corner, and a crack may occur in the insulating coating of the enameled wire at this corner.
- An object of the present invention is to solve the above-described problems.
- the corners of the insulating member have a curved shape, the dimension of the stator in the stacking direction of the steel plates increases. With the aim of obtaining a stator of a rotating electric machine that can improve the output To do.
- a rotating electric machine stator is configured by laminating a plurality of steel plates, and has a ring-shaped core body, and a protruding portion radially projecting from the core body at a predetermined interval in a circumferential direction.
- An insulating member that covers an inner surface of a slot formed between the adjacent salient poles and an end surface of the protruding portion in the stacking direction of the steel plate, the insulating member and the protruding portion.
- a winding formed by winding a portion with a conducting wire wherein the stator of the rotating electric machine has a curved surface at a corner of the insulating member with which the conducting wire abuts.
- a magnetic body is provided between them.
- FIG. 1 is an exploded perspective view showing a main part of a stator (before winding is wound) of an electric motor according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view when the iron core of FIG. 1 is cut along a circumferential direction.
- FIG. 3 is a plan view when an insulating member is mounted on the iron core of FIG.
- FIG. 4 is a perspective view showing a modification of the insulating member of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is an exploded perspective view showing a main part of a stator (before a winding is mounted) of an electric motor according to Embodiment 1 of the present invention
- FIG. 2 is a sectional view of the iron core of FIG. 1 cut along a circumferential direction
- FIG. 3 is a plan view when an insulating member is attached to the iron core of FIG.
- the iron core 1 is configured by welding adjacent arc-shaped iron core pieces 1a to each other.
- the iron core 1 has an iron core body 20 having a ring shape as a whole, and salient poles 6 projecting radially from the iron core body 20 at a predetermined interval in the circumferential direction.
- the salient pole 6 has a protruding portion 4 and a magnetic pole portion 5 extending from the tip of the protruding portion 4 to both sides in the circumferential direction.
- a slot 7 is formed between adjacent salient poles 6.
- the plurality of insulating members 2 are made of PPS (polyphenylene sulfide). On each side of each salient pole 6 in the laminating direction, a part of the inner surface of the slot 7 and the salient pole 6 in the laminating direction are arranged. It is fitted to the iron core 1 covering the end face.
- PPS polyphenylene sulfide
- the insulating member 2 includes an insulating member main body 30 having a curved surface portion 8 at a corner where a conductive wire abuts, an inner flange portion 9 provided radially inside the insulating member main body 30 and protruding in the laminating direction, An outer flange portion 10 is provided radially outside the member body 30 and protrudes in the laminating direction. Grooves 11a and 11b are formed in the outer flange 10 for inserting and removing the conductor.
- the magnetic body 3 having an H shape as a whole has a magnetic main hook 12 whose cross-section when cut along the circumferential direction has an arc shape at a corner, and a magnetic body 12 provided radially inside the magnetic main body 12. It comprises a projection 13 protruding on both sides in the direction, and a crossover part 14 provided on the radial outside of the magnetic body 12 and protruding on both sides in the circumferential direction.
- the protrusion 13 is sandwiched between the magnetic pole part 5 and the inner collar part 9.
- the crossover portion 14 is sandwiched between the end surface of the iron core body 20 in the stacking direction and the pressing surface 10a of the outer flange portion 10.
- the winding is formed by concentrated winding of the periphery of the protruding portion 4 of each salient pole 6 partially covered by the insulating member 2 with a conducting wire. Since it is wound on the insulating member main body 30 having the curved surface portion 8 at the corner in the frame of the collar portion 9 and the outer collar portion 10, cracks do not occur in the insulating coating of the conductive wire.
- the inventor of the present invention wound an enameled wire, which is a conductor having a wire diameter of 1.9 mm, on the insulating member body 30 having a curved surface portion 8 having a radius of curvature of 30 mm. Did not occur.
- the magnetic body 3 also forms a magnetic path, the magnetic resistance of the stator decreases, and the torque output increases. Further, the magnetic body 12 of the magnetic body 3 has a circular cross-section when cut along the circumferential direction and protrudes outward in the laminating direction at a corner, so that a large cross-sectional area can be secured.
- the magnetic body 3 is made of a steel material.For example, when a powder obtained by mixing a thermoplastic resin of PPS and iron powder is used, the powder is heated and pressed to a predetermined level. The shaped magnetic body 3 can be easily formed.
- transition portions 14 extending on both sides in the circumferential direction and abutting on the end surfaces of the iron core body 20 in the laminating direction, and both end surfaces of the adjacent transition portions 14. Since the members are in contact, the magnetic path cross-sectional area between the adjacent salient poles 6 increases, the magnetic resistance decreases, and the torque output increases.
- the magnetic body 3 is provided with protrusions 13 protruding on both sides in the circumferential direction, and the protrusions 13 face a rotor (not shown) rotatably provided on the axis of the stator. Therefore, the area where the stator faces the rotor increases, and the torque output improves. Further, as shown in FIG. 4, the magnetic body 3 may be integrated with the insulating member 2 by insert molding. The magnetic member 3 and the insulating member 2 may be integrated using an adhesive, or the magnetic member 3 and the insulating member 2 may be integrated by welding the insulating member 2.
- stator of the electric motor which is a rotating electric machine, used in the hoisting machine of the elevator.
- present invention can be applied to the stator of the electric motor for other uses.
- present invention can be applied to a stator of a generator as a rotating electric machine.
- the magnetic body may have an overall cross-sectional shape when cut along the circumferential direction that protrudes in an arc shape outward in the laminating direction, or may have a rectangular cross-sectional shape.
- the present invention provides a stator for a rotating electrical machine including an insulating member that insulates the salient poles of a laminated core around which a conductive wire is wound, and has a high output without increasing the dimension of the steel sheets in the laminating direction. It is useful for realizing.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/005197 WO2005101612A1 (ja) | 2004-04-12 | 2004-04-12 | 回転電機の固定子 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/005197 WO2005101612A1 (ja) | 2004-04-12 | 2004-04-12 | 回転電機の固定子 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005101612A1 true WO2005101612A1 (ja) | 2005-10-27 |
Family
ID=35150292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005197 WO2005101612A1 (ja) | 2004-04-12 | 2004-04-12 | 回転電機の固定子 |
Country Status (1)
Country | Link |
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WO (1) | WO2005101612A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1855369A3 (en) * | 2006-05-12 | 2009-04-15 | JTEKT Corporation | Stator core of an electric motor |
DE202009011270U1 (de) | 2009-08-20 | 2009-11-19 | Danfoss Drives A/S | Endkappenvorrichtung |
US7629721B2 (en) | 2006-02-28 | 2009-12-08 | Jtekt Corporation | Stator of motor |
CN102082471A (zh) * | 2009-11-30 | 2011-06-01 | 东芝开利株式会社 | 集中绕组定子、密闭型压缩机及制冷循环装置 |
EP2434615A1 (en) * | 2010-09-24 | 2012-03-28 | Siemens Aktiengesellschaft | Electric machine, method for constructing an electric machine, armature and lamination tooth |
EP2858215A4 (en) * | 2012-05-29 | 2016-05-11 | Mitsubishi Electric Corp | ELECTRIC TURNING MACHINE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07135745A (ja) * | 1993-11-10 | 1995-05-23 | Fanuc Ltd | 電動機のコア |
JP2001157390A (ja) * | 1999-11-22 | 2001-06-08 | Shinko Electric Co Ltd | 高耐熱回転電機 |
JP2002369418A (ja) * | 2001-06-04 | 2002-12-20 | Nissan Motor Co Ltd | 電動機のステータ構造 |
JP2003088027A (ja) * | 2001-09-13 | 2003-03-20 | Moric Co Ltd | 回転電気機器の電機子 |
JP2003200289A (ja) * | 2001-09-27 | 2003-07-15 | Furukawa Electric Co Ltd:The | 部材の接合方法、その方法で得られた接合部材 |
-
2004
- 2004-04-12 WO PCT/JP2004/005197 patent/WO2005101612A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07135745A (ja) * | 1993-11-10 | 1995-05-23 | Fanuc Ltd | 電動機のコア |
JP2001157390A (ja) * | 1999-11-22 | 2001-06-08 | Shinko Electric Co Ltd | 高耐熱回転電機 |
JP2002369418A (ja) * | 2001-06-04 | 2002-12-20 | Nissan Motor Co Ltd | 電動機のステータ構造 |
JP2003088027A (ja) * | 2001-09-13 | 2003-03-20 | Moric Co Ltd | 回転電気機器の電機子 |
JP2003200289A (ja) * | 2001-09-27 | 2003-07-15 | Furukawa Electric Co Ltd:The | 部材の接合方法、その方法で得られた接合部材 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7629721B2 (en) | 2006-02-28 | 2009-12-08 | Jtekt Corporation | Stator of motor |
EP1855369A3 (en) * | 2006-05-12 | 2009-04-15 | JTEKT Corporation | Stator core of an electric motor |
US7705494B2 (en) | 2006-05-12 | 2010-04-27 | Jtekt Corporation | Electric motor |
DE202009011270U1 (de) | 2009-08-20 | 2009-11-19 | Danfoss Drives A/S | Endkappenvorrichtung |
CN102082471A (zh) * | 2009-11-30 | 2011-06-01 | 东芝开利株式会社 | 集中绕组定子、密闭型压缩机及制冷循环装置 |
EP2434615A1 (en) * | 2010-09-24 | 2012-03-28 | Siemens Aktiengesellschaft | Electric machine, method for constructing an electric machine, armature and lamination tooth |
EP2858215A4 (en) * | 2012-05-29 | 2016-05-11 | Mitsubishi Electric Corp | ELECTRIC TURNING MACHINE |
US9601960B2 (en) | 2012-05-29 | 2017-03-21 | Mitsubishi Electric Corporation | Rotating electrical machine with biased bobbin |
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