CN104600937A - Synchronous reluctance motor - Google Patents

Synchronous reluctance motor Download PDF

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Publication number
CN104600937A
CN104600937A CN201310722215.XA CN201310722215A CN104600937A CN 104600937 A CN104600937 A CN 104600937A CN 201310722215 A CN201310722215 A CN 201310722215A CN 104600937 A CN104600937 A CN 104600937A
Authority
CN
China
Prior art keywords
rotor
magnet steel
magnetic
resistance motor
magnetic resistance
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.)
Granted
Application number
CN201310722215.XA
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Chinese (zh)
Other versions
CN104600937B (en
Inventor
史进飞
陈东锁
陈彬
卢素华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Original Assignee
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Priority to CN201310722215.XA priority Critical patent/CN104600937B/en
Publication of CN104600937A publication Critical patent/CN104600937A/en
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Publication of CN104600937B publication Critical patent/CN104600937B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

Abstract

The invention provides a synchronous reluctance motor. The synchronous reluctance motor comprises a rotor and a stator with a winding, wherein the rotor is provided with a plurality of magnetic poles; in the radial direction of the rotor, each magnetic pole of the rotor is provided with a plurality of layers of cambered magnetic steel channels; magnetic steel is arranged in the magnetic steel channels; a q-axis magnetic path is formed between every two adjacent layers of magnetic steel channels; the electric angle of the centers of two openings of the q-axis magnetic path and the center of circle of the rotor is theta and is greater than or equal to 90 degrees and is smaller than or equal to 124 degrees; the magnetic steel channels are uniformly distributed on the radial circumference of the rotor. The synchronous reluctance motor has the advantages of large force, high efficiency, low electromagnetic noise, capability of reducing torque ripple by 50 percent compared with similar conventional motors and reduction in torque ripple and tangential force corresponding to a stator tooth slot.

Description

Synchronous magnetic resistance motor
Technical field
The present invention relates to machine field, particularly relate to a kind of synchronous magnetic resistance motor.
Background technology
The patent No. be CN00108103.9 patent discloses a kind of flux-obstruction type synchronous reluctance motor, but do not have permanent magnet in this rotor multiple tracks flux-obstruction groove, motor is exerted oneself little, and efficiency is lower.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of synchronous magnetic resistance motor, it is exerted oneself greatly, and efficiency is high.For achieving the above object, technical scheme of the present invention is as follows:
A kind of synchronous magnetic resistance motor, comprise the stator of rotor and band winding, described rotor arranges multiple magnetic pole, at described rotor in the radial direction, each magnetic pole of described rotor is provided with multilayer arc magnet steel groove, in described magnet steel groove, is provided with magnet steel, a q axle magnetic circuit is formed between wherein adjacent two-layer described magnet steel groove, the electrical degree in the described two-port center of q axle magnetic circuit and the center of circle of described rotor is θ, wherein, and 90 °≤θ≤124 °; Described magnet steel groove is uniformly distributed at the radial circumference of described rotor.
More preferably, the inner periphery of described stator is evenly equipped with multiple teeth groove, arranges winding coil in described teeth groove, and the width of rebate of described teeth groove is L, and described q axle magnetic circuit is k at the width of outermost circle one end of described rotor, wherein, and 1.4L≤k≤2.5L.
More preferably, the angle place, two ends of described magnet steel groove is horn structure, fillet structure or top rake structure.
More preferably, described magnet steel is ferrite lattice.
More preferably, rivet hole is provided with between the magnetic pole of described rotor;
The quantity of described rivet hole equals the number of magnetic poles of described rotor, and described rivet hole is uniformly distributed at the radial circumference of described rotor.
More preferably, described synchronous magnetic resistance motor is 6-pole motor.
The invention has the beneficial effects as follows:
Synchronous magnetic resistance motor of the present invention, exert oneself large, efficiency is high, and electromagnetic noise is low, and its torque ripple declines 50% than similar conventional motor, and the torque ripple corresponding with stator teeth groove and tangential force decline.
Accompanying drawing explanation
Fig. 1 is the rotor structure schematic diagram of synchronous magnetic resistance motor one embodiment of the present invention;
Fig. 2 is that the rotor of synchronous magnetic resistance motor one embodiment of the present invention coordinates schematic diagram with stator.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, synchronous magnetic resistance motor of the present invention is further elaborated.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
See figures.1.and.2, synchronous magnetic resistance motor one embodiment of the present invention is 6-pole motor, comprise the stator of rotor and band winding, at rotor in the radial direction, each magnetic pole of rotor is provided with multilayer arc magnet steel groove, magnet steel is provided with in magnet steel groove, a q axle magnetic circuit (rib) is formed between wherein adjacent two-layer magnet steel groove, the electrical degree in the described two-port center of q axle magnetic circuit (rib) and the center of circle of rotor is θ (mechanical angle * number of pole-pairs), wherein, 90 °≤θ≤124 °, rotor is arranged multiple magnetic pole, magnet steel groove distributes at described rotor radial even circumferential.Magnet steel groove on each magnetic pole of figure rotor is two-layer arc magnet steel groove, be respectively the first magnet steel groove 2 and the second magnet steel groove 3, insert in first magnet steel groove 2 in first magnet steel 4. second magnet steel groove 3 and insert the second magnet steel 5, first magnet steel 4 and the second magnet steel 5 are the ferrite lattice of low cost, ferrite lattice is mounted to the polarity N making them, S is in the arrangement replaced on the side of stator, formation multiple tracks flux-obstruction like this, a q axle magnetic circuit (rib) is formed between first magnet steel groove 2 and the second magnet steel groove 3, rotor core 1 also has central shaft hole 7 and rivet hole 6 simultaneously, the quantity of rivet hole 6 equals the number of magnetic poles of rotor, rivet hole 6 is uniformly distributed at the radial circumference of described rotor.
The inner periphery of stator 8 is evenly equipped with multiple teeth groove, arranges winding coil in teeth groove, and the width of rebate of teeth groove is L, and described magnetic circuit (rib) is k at the width of described rotor outermost circle one end, wherein, and 1.4L≤k≤2.5L.Preferably, angle place, described magnet steel groove two ends is horn structure, fillet structure or top rake (chamfering) structure.
Design like this, the stator tooth that can make the magnetic circuit (rib) between two-layer magnet steel groove corresponding is non-integer, thus makes q axle magnetic line of force relative distribution, reduces torque ripple; On the other hand, between two-layer magnet steel groove, magnetic circuit (rib) is greater than stator rabbet width at rotor outermost circle one end width, and when between two-layer magnet steel groove, magnetic circuit (rib) one end forwards stator slot position to, its magnetic line of force can be come in and gone out from the tooth on stator slot both sides, the further dispersion magnetic line of force, reduces torque ripple; Again on the one hand, shared by magnet steel groove, the mechanical angle of rotor circumference radial direction is less, and namely the distance (die opening) of each interpolar of rotor is comparatively large, and the magnetic line of force can be come in and gone out from multiple stator tooth, makes the rotor circumference magnetic line of force be evenly distributed rationally, reduces rotor and tangentially pulses; Moreover q magnetic path width increases, and saturated reduction, more by the magnetic line of force, therefore motor is exerted oneself and can not obviously be declined, and efficiency is high.
In a word, above-mentioned design can make each magnetic path width and stator tooth width in most suitable scope (with stator teeth groove corresponding relation), when motor is exerted oneself constant, magnetic line of force distribution rationally, to reduce torque pulsation (torque ripple particularly caused by slot effect) and radial cut to electromagnetic force, thus the vibration reduced in running and noise.
The synchronous magnetic resistance motor of above embodiment, exert oneself large, efficiency is high, and electromagnetic noise is low, and its torque ripple declines 50% than similar conventional motor, and the torque ripple corresponding with stator teeth groove and tangential force decline.Be applied to compressor of air conditioner, effectively can reduce motor torque fluctuation and electromagnetic force, reduce motor and vibration of compressor noise.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (6)

1. a synchronous magnetic resistance motor, comprises the stator of rotor and band winding, it is characterized in that:
Described rotor arranges multiple magnetic pole, at described rotor in the radial direction, each magnetic pole of described rotor is provided with multilayer arc magnet steel groove, magnet steel is provided with in described magnet steel groove, a q axle magnetic circuit is formed between wherein adjacent two-layer described magnet steel groove, the electrical degree in the described two-port center of q axle magnetic circuit and the center of circle of described rotor is θ, wherein, and 90 °≤θ≤124 °; Described magnet steel groove is uniformly distributed at the radial circumference of described rotor.
2. synchronous magnetic resistance motor according to claim 1, is characterized in that:
The inner periphery of described stator is evenly equipped with multiple teeth groove, arranges winding coil in described teeth groove, and the width of rebate of described teeth groove is L, and described q axle magnetic circuit is k at the width of outermost circle one end of described rotor, wherein, and 1.4L≤k≤2.5L.
3. synchronous magnetic resistance motor according to claim 1, is characterized in that:
The angle place, two ends of described magnet steel groove is horn structure, fillet structure or top rake structure.
4. synchronous magnetic resistance motor according to claim 1, is characterized in that:
Described magnet steel is ferrite lattice.
5. the synchronous magnetic resistance motor according to any one of claim 1-4, is characterized in that:
Rivet hole is provided with between the magnetic pole of described rotor;
The quantity of described rivet hole equals the number of magnetic poles of described rotor, and described rivet hole is uniformly distributed at the radial circumference of described rotor.
6. synchronous magnetic resistance motor according to claim 5, is characterized in that:
Described synchronous magnetic resistance motor is 6-pole motor.
CN201310722215.XA 2013-12-24 2013-12-24 Synchronous magnetic resistance motor Active CN104600937B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310722215.XA CN104600937B (en) 2013-12-24 2013-12-24 Synchronous magnetic resistance motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310722215.XA CN104600937B (en) 2013-12-24 2013-12-24 Synchronous magnetic resistance motor

Publications (2)

Publication Number Publication Date
CN104600937A true CN104600937A (en) 2015-05-06
CN104600937B CN104600937B (en) 2016-03-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105207381A (en) * 2015-09-11 2015-12-30 广东威灵电机制造有限公司 Rotor core module, rotor and motor
CN112039239A (en) * 2020-09-07 2020-12-04 珠海格力电器股份有限公司 Rotor pressing plate for permanent magnet synchronous motor and permanent magnet synchronous motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09266646A (en) * 1996-03-18 1997-10-07 Aichi Emerson Electric Co Ltd Brushless dc motor
CN1340898A (en) * 2000-08-31 2002-03-20 雅马哈发动机株式会社 Permanent-magnet rotor
CN1505239A (en) * 1995-05-31 2004-06-16 ���µ�����ҵ��ʽ���� Motor with built-in permanent magnets
CN102769367A (en) * 2012-03-05 2012-11-07 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet assisted synchronous reluctance motor and installation method thereof
CN102790457A (en) * 2012-03-05 2012-11-21 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet auxiliary synchronized reluctance motor rotor and motor thereof and installation method of motor
CN203674936U (en) * 2013-12-24 2014-06-25 珠海格力节能环保制冷技术研究中心有限公司 Synchronous magnetic resistance motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1505239A (en) * 1995-05-31 2004-06-16 ���µ�����ҵ��ʽ���� Motor with built-in permanent magnets
JPH09266646A (en) * 1996-03-18 1997-10-07 Aichi Emerson Electric Co Ltd Brushless dc motor
CN1340898A (en) * 2000-08-31 2002-03-20 雅马哈发动机株式会社 Permanent-magnet rotor
CN102769367A (en) * 2012-03-05 2012-11-07 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet assisted synchronous reluctance motor and installation method thereof
CN102790457A (en) * 2012-03-05 2012-11-21 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet auxiliary synchronized reluctance motor rotor and motor thereof and installation method of motor
CN203674936U (en) * 2013-12-24 2014-06-25 珠海格力节能环保制冷技术研究中心有限公司 Synchronous magnetic resistance motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105207381A (en) * 2015-09-11 2015-12-30 广东威灵电机制造有限公司 Rotor core module, rotor and motor
CN112039239A (en) * 2020-09-07 2020-12-04 珠海格力电器股份有限公司 Rotor pressing plate for permanent magnet synchronous motor and permanent magnet synchronous motor

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