CN203086308U - Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof - Google Patents

Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof Download PDF

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Publication number
CN203086308U
CN203086308U CN 201220680898 CN201220680898U CN203086308U CN 203086308 U CN203086308 U CN 203086308U CN 201220680898 CN201220680898 CN 201220680898 CN 201220680898 U CN201220680898 U CN 201220680898U CN 203086308 U CN203086308 U CN 203086308U
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China
Prior art keywords
radial
rotor core
permanent magnet
rotor
magnetic resistance
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CN 201220680898
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Chinese (zh)
Inventor
刘文龙
刘贤义
龚海涛
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
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Priority to CN 201220680898 priority Critical patent/CN203086308U/en
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Publication of CN203086308U publication Critical patent/CN203086308U/en
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Abstract

The utility model discloses an asynchronous starting permanent magnet synchronous motor rotor comprises a rotating shaft disposed on a center and a rotor iron core sleeved on the rotating shaft. The rotor iron core is uniformly provided with a plurality of conducting bar windings in a peripheral direction in an inserted manner, and all of the conducting bar windings can be used to form a circular squirrel cage structure in an encircled manner. Two sides of the rotating shaft are symmetrically provided with a pair of permanent magnets, which passes through the rotor iron core in an axial direction. Viewed from a radial cross section of the rotor iron core, the radial central lines of the permanent magnets are superposed with each other, and pass through a center of circle of the radial cross section of the rotor iron core. A pair of opposite magnetic poles are symmetrically disposed on the radial cross section of the rotor iron core along the central lines of the pair of the permanent magnets. The radial cross section of the rotor iron core is provided with a pair of first magnetic resistance grooves having openings. The radial cross section of the rotor iron core is provided with a pair of second magnetic resistance grooves, which pass through the rotor iron core in an axial direction.

Description

Asynchronous starting permanent-magnetic synchronous motor rotor and magneto thereof
[technical field]
The utility model relates to motor rotor construction, relates in particular to a kind of asynchronous starting permanent-magnetic synchronous motor rotor and magneto thereof.
[background technology]
The reluctance torque of magneto mainly comes from the saliency of motor, and reluctance torque is meant the power towards the little direction rotation of magnetic resistance that permanent magnetism magnetic pole is subjected to as rotor, and reluctance torque is that the asymmetry by rotor magnetic circuit structural is produced.Can be divided into surperficial permagnetic synchronous motor and internal permanent magnet synchronous motor according to the magnet structure permagnetic synchronous motor, interior permanent magnet machines is compared with surperficial magneto, its production technology is simpler, and rotor outer surface is level and smooth, and the air gap between the stator and rotor is more even.
Line-start permanent magnetic synchronous motor is a kind of mouse cage winding of placing on the rotor cylindrical, on rotor, place the electric machine structure of permanent magnet simultaneously, how the line-start permanent magnetic synchronous motor rotor structure to present routine improves, make it promptly have the permagnetic synchronous motor high-efficiency characteristics, also having the characteristics that asynchronous machine need not the autonomous starting of controller, is the main design problem that present motor developer faces.
[utility model content]
The utility model provides a kind of raising salient pole ratio, reduces the permanent magnet consumption, can save controller, the asynchronous starting permanent-magnetic synchronous motor rotor that reduces cost when guaranteeing the motor nominal torque.
In order to realize above-mentioned utility model purpose, the technical solution adopted in the utility model is:
The asynchronous starting permanent-magnetic synchronous motor rotor, comprise the rotating shaft that is positioned at the center and be enclosed within rotor core in the rotating shaft, rotor core is axially to be formed by stacking by a plurality of circular silicon steel sheet rotating shafts, described rotor core circumferentially be inserted with a plurality of sliver windings uniformly, all sliver windings surround a circular cage-shaped structure; Be provided with a pair of permanent magnet that connects rotor core on axially in the rotating shaft bilateral symmetry; On this rotor core radial section, this overlaps and passes the center of circle of this rotor core radial section to the radial centre lines of permanent magnet; This forms a pair of along this opposite pole that permanent magnet radial centre lines is symmetrically distributed on the rotor core radial section to permanent magnet; With the center of circle of passing this rotor core radial section and perpendicular to this vertical line to the permanent magnet radial centre lines is symmetry axis, on the radial section of this rotor core, offer a pair of first magnetic resistance groove with opening, each this first magnetic resistance groove self is the symmetry axis symmetry with this to the permanent magnet radial centre lines, and should be to the axial perforation of the first magnetic resistance groove along this rotor core; With this to the permanent magnet radial centre lines be symmetry axis, on the rotor core radial section, offer a pair of second magnetic resistance groove that connects rotor core in the axial direction; Each this second magnetic resistance groove self is the symmetry axis symmetry with the center of circle of passing this rotor core radial section and perpendicular to this vertical line to the permanent magnet radial centre lines.
Preferably, on this rotor core radial section, the described first magnetic resistance groove be the inboard narrow outside wide fall trapezoidal magnetic resistance groove, the span of the angle α that forms between the first magnetic resistance groove dual-side is 20~40 °, the first magnetic resistance groove in the rotor core inboard the width L1 span at narrow place be 1~3mm.
Preferably, the second magnetic resistance groove is a rectangle magnetic resistance groove, and the second magnetic resistance well width L2 span is 2~4mm.
Preferably, described sliver winding adopts copper sliver winding or aluminium matter sliver winding.
Preferably, the span of the thickness L3 of described permanent magnet is 0.5~1.5mm.
The utility model also provides a kind of magneto, and this motor comprises casing and be installed on the stator and the rotor of casing inside that described rotor adopts above-mentioned asynchronous starting permanent-magnetic synchronous motor rotor.
The beneficial effects of the utility model are:
Rotor of the present utility model adopts the sliver winding to surround a circular cage-shaped structure, constitute segmented field spider structure, the sliver winding is evenly distributed on the outward flange of rotor, play the effect of starter motor rotor rotation, radial direction at rotor has the first magnetic resistance groove and the second magnetic resistance groove, is playing in the magnetic bridge effect, has also played the effect that increases reluctance torque when electric motor starting, thereby reduced the permanent magnet consumption, played the purpose that reduces the motor price and save controller.
Cage-shaped structure rotor by the laying of sliver winding, on rotor, be placed with simultaneously permanent magnet, make rotor promptly have the permagnetic synchronous motor high-efficiency characteristics, also have the characteristics that asynchronous machine need not the autonomous starting of controller, make this motor promptly obtain the high efficiency advantage of the high rotating speed of synchronous machine, had again and saved controller and reach the purpose that reduces cost.
[description of drawings]
Fig. 1 is the structural representation of the utility model rotor.
[embodiment]
The asynchronous starting permanent-magnetic synchronous motor rotor, as shown in Figure 1, comprise rotating shaft 1 that is positioned at the center and the rotor core 2 that is enclosed within the rotating shaft 1, rotor core 2 is to be formed by stacking by a plurality of circular silicon steel sheets, described rotor core 2 circumferential round edges are inserted with a plurality of sliver windings 3 uniformly, all sliver windings 3 surround a circular cage-shaped structure, play the effect of starter motor rotor rotation; Be provided with a pair of permanent magnet 8 that connects rotor core on axially in rotating shaft 1 bilateral symmetry; On these rotor core 2 radial sections, this overlaps and passes the center of circle of these rotor core 2 radial sections to the radial centre lines of permanent magnet 8; This forms a pair of along this opposite pole that permanent magnet 8 radial centre lines are symmetrically distributed (N magnetic pole 4 and S magnetic pole 5, certainly, two pole polarity can be exchanged) on rotor core 2 radial sections to permanent magnet 8; With the center of circle of passing these rotor core 2 radial sections and perpendicular to this vertical line to permanent magnet 8 radial centre lines is symmetry axis, on the radial section of this rotor core 2, offer a pair of first magnetic resistance groove 6 with opening, each this first magnetic resistance groove 6 self is the symmetry axis symmetry with this to permanent magnet 8 radial centre lines, and should be to the axial perforation of the first magnetic resistance groove 6 along this rotor core; With this to permanent magnet 8 radial centre lines be symmetry axis, on the rotor core radial section, offer a pair of second magnetic resistance groove 7 that connects rotor core 2 in the axial direction; Each this second magnetic resistance groove 7 self is the symmetry axis symmetry with the center of circle of passing these rotor core 2 radial sections and perpendicular to this vertical line to permanent magnet 8 radial centre lines.
Continue as shown in Figure 1, on these rotor core 2 radial sections, the described first magnetic resistance groove 6 for the inboard narrow outside wide fall trapezoidal magnetic resistance groove, the span of the angle α that forms between the first magnetic resistance groove, 6 dual-sides is 20~40 °, the first magnetic resistance groove 6 in the rotor core inboard the width L1 span at narrow place be 1~3mm; The second magnetic resistance groove 7 is a rectangle magnetic resistance groove, and the second magnetic resistance groove, 7 width L2 spans are 2~4mm; The span of the thickness L3 of permanent magnet 8 is 0.5~1.5mm.Wherein, sliver winding 3 adopts copper sliver winding or aluminium matter sliver winding.
The magneto that the utility model provides, rotor adopt the sliver winding to surround a circular cage-shaped structure, constitute segmented field spider structure, and sliver winding 3 is evenly distributed on the outward flange of rotor, plays the effect of starter motor rotor rotation; At the mutually perpendicular first magnetic resistance groove 6 parallel and the second magnetic resistance groove 7 of offering in the radial direction of rotor with rotor axial, playing in the magnetic bridge effect, improved motor salient pole ratio, increased the reluctance torque of motor greatly, improve the motor gas-gap field waveform, reduce torque pulsation, also played the effect that when electric motor starting, increases reluctance torque, thereby reduced the permanent magnet consumption, play the purpose that reduces the motor price and save controller, when reducing motor cost, improved the characteristics of the starting characteristic of motor.
The above embodiment for preferred embodiment of the present utility model, is not to limit practical range of the present utility model with this just, and the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection range of the present utility model.

Claims (6)

1. asynchronous starting permanent-magnetic synchronous motor rotor comprises the rotating shaft that is positioned at the center and is enclosed within rotor core in the rotating shaft that rotor core is axially to be formed by stacking by a plurality of circular silicon steel sheet rotating shafts, it is characterized in that,
Described rotor core circumferentially be inserted with a plurality of sliver windings uniformly, all sliver windings surround a circular cage-shaped structure;
Be provided with a pair of permanent magnet that connects rotor core on axially in the rotating shaft bilateral symmetry; On this rotor core radial section, this overlaps and passes the center of circle of this rotor core radial section to the radial centre lines of permanent magnet; This forms a pair of along this opposite pole that permanent magnet radial centre lines is symmetrically distributed on the rotor core radial section to permanent magnet;
With the center of circle of passing this rotor core radial section and perpendicular to this vertical line to the permanent magnet radial centre lines is symmetry axis, on the radial section of this rotor core, offer a pair of first magnetic resistance groove with opening, each this first magnetic resistance groove self is the symmetry axis symmetry with this to the permanent magnet radial centre lines, and should be to the axial perforation of the first magnetic resistance groove along this rotor core;
With this to the permanent magnet radial centre lines be symmetry axis, on the rotor core radial section, offer a pair of second magnetic resistance groove that connects rotor core in the axial direction; Each this second magnetic resistance groove self is the symmetry axis symmetry with the center of circle of passing this rotor core radial section and perpendicular to this vertical line to the permanent magnet radial centre lines.
2. asynchronous starting permanent-magnetic synchronous motor rotor according to claim 1, it is characterized in that, on this rotor core radial section, the described first magnetic resistance groove be the inboard narrow outside wide fall trapezoidal magnetic resistance groove, the span of the angle α that forms between the first magnetic resistance groove dual-side is 20~40 °, the first magnetic resistance groove in the rotor core inboard the width L1 span at narrow place be 1~3mm.
3. asynchronous starting permanent-magnetic synchronous motor rotor according to claim 1 and 2 is characterized in that, the second magnetic resistance groove is a rectangle magnetic resistance groove, and the second magnetic resistance well width L2 span is 2~4mm.
4. asynchronous starting permanent-magnetic synchronous motor rotor according to claim 1 is characterized in that, described sliver winding adopts copper sliver winding or aluminium matter sliver winding.
5. asynchronous starting permanent-magnetic synchronous motor rotor according to claim 1 and 2 is characterized in that, the span of the thickness L3 of described permanent magnet is 0.5~1.5mm.
6. magneto comprises casing and the stator and the rotor that are installed on casing inside, it is characterized in that: described rotor is as the described arbitrary asynchronous starting permanent-magnetic synchronous motor rotor of claim 1 to 5.
CN 201220680898 2012-12-11 2012-12-11 Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof Active CN203086308U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220680898 CN203086308U (en) 2012-12-11 2012-12-11 Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220680898 CN203086308U (en) 2012-12-11 2012-12-11 Asynchronous starting permanent magnet synchronous motor rotor and permanent magnet motor thereof

Publications (1)

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CN203086308U true CN203086308U (en) 2013-07-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580428A (en) * 2013-11-12 2014-02-12 大连东利伟业环保节能科技有限公司 Half-magnetic-sheet outer-rotor type asynchronous starting permanent-magnet synchronous motor
CN104184292A (en) * 2014-06-02 2014-12-03 赵晓东 Hybrid-type asynchronous-starting permanent magnet synchronous motor and pole-changing and speed-changing method
CN104184293A (en) * 2014-07-16 2014-12-03 赵晓东 Adjusting-type pole-changing speed-changing permanent-magnet synchronous motor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580428A (en) * 2013-11-12 2014-02-12 大连东利伟业环保节能科技有限公司 Half-magnetic-sheet outer-rotor type asynchronous starting permanent-magnet synchronous motor
CN103580428B (en) * 2013-11-12 2015-07-29 大连碧蓝节能环保科技有限公司 Half magnetic sheet external-rotor-type asynchronous starting permanent magnet synchronous motor
CN104184292A (en) * 2014-06-02 2014-12-03 赵晓东 Hybrid-type asynchronous-starting permanent magnet synchronous motor and pole-changing and speed-changing method
CN104184292B (en) * 2014-06-02 2016-07-13 大连碧蓝节能环保科技有限公司 Hybrid asynchronous starting permanent magnet synchronous motor and pole-changing windings method
CN104184293A (en) * 2014-07-16 2014-12-03 赵晓东 Adjusting-type pole-changing speed-changing permanent-magnet synchronous motor
CN104184293B (en) * 2014-07-16 2016-05-18 大连碧蓝节能环保科技有限公司 Adjustable type pole-changing windings permasyn morot

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