CN104600937A - Synchronous reluctance motor - Google Patents
Synchronous reluctance motor Download PDFInfo
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner 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
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
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
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.
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 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310722215.XA Active CN104600937B (en) | 2013-12-24 | 2013-12-24 | Synchronous magnetic resistance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104600937B (en) |
Cited By (2)
| 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)
| 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 |
-
2013
- 2013-12-24 CN CN201310722215.XA patent/CN104600937B/en active Active
Patent Citations (6)
| 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)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104600937B (en) | 2016-03-09 |
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