CN104600946B - Synchronous magnetic resistance motor - Google Patents

Synchronous magnetic resistance motor Download PDF

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Publication number
CN104600946B
CN104600946B CN201310733674.8A CN201310733674A CN104600946B CN 104600946 B CN104600946 B CN 104600946B CN 201310733674 A CN201310733674 A CN 201310733674A CN 104600946 B CN104600946 B CN 104600946B
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CN
China
Prior art keywords
rotor
permanent magnet
center
rotor core
core
Prior art date
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Application number
CN201310733674.8A
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Chinese (zh)
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CN104600946A (en
Inventor
史进飞
陈东锁
陈彬
卢素华
贾武豪
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Priority to CN201310733674.8A priority Critical patent/CN104600946B/en
Publication of CN104600946A publication Critical patent/CN104600946A/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 kind of synchronous magnetic resistance motor, comprise rotor and stator; Rotor is formed by connecting by multipiece rotor iron core, and adjacent two-stage rotor iron core is positive and negative to connect; At rotor in the radial direction, each magnetic pole of rotor core is provided with multilayer arc-shaped permanent magnet groove, forms a q axle magnetic circuit between adjacent two-layer permanent magnet trough, in permanent magnet trough, be provided with permanent magnet; Two pole polarity that rotor core is adjacent are contrary, and the permanent magnet trough on each magnetic pole is at rotor radial circumference uniform distribution; Rotor core is arranged multiple rivet hole, the misalignment Ci Ju center of rivet hole, described Ci Ju center is the center of the rotor core between each magnetic pole, and multiple riveted holes is uniformly distributed on the radial circumference of rotor core.Synchronous magnetic resistance motor of the present invention, departs from Ci Ju center certain angle by arranging the riveted holes center of circle, and the just anti-phase riveted joint of identical multistage iron core is formed, thus the two-stage rotor iron core be connected is staggered certain angle, reduces motor oscillating and noise.

Description

Synchronous magnetic resistance motor
Technical field
The present invention relates to machine field, particularly relate to a kind of permanent magnetism assist type synchronous magnetic resistance motor.
Background technology
The patent No. is 02120667.8 patent discloses a kind of permanent magnet rotary motor and use the air-conditioning of this motor, but this motor is made up of different structure core packet to increase output, cause complex process, cost is higher, and does not consider vibration noise of motor problem.
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, the multipiece rotor iron core segmentation dislocation certain angle of rotor, reduces the torque ripple of motor, reduces motor oscillating and noise.For achieving the above object, technical scheme of the present invention is as follows:
A kind of synchronous magnetic resistance motor, comprises rotor and stator;
Described rotor is formed by connecting by three-stage rotor iron core, and two sections of adjacent described rotor cores are positive and negative to connect; Wherein the height of one section of described rotor core is L, and the height of other two sections of described rotor cores is L/2, is highly the adjacent or alternate setting of two sections of described rotor cores of L/2;
At described rotor in the radial direction, each magnetic pole of described rotor core is provided with multilayer arc-shaped permanent magnet groove, forms a q axle magnetic circuit between adjacent two-layer described permanent magnet trough, in described permanent magnet trough, be provided with permanent magnet;
Two pole polarity that described rotor core is adjacent are contrary, and the described permanent magnet trough on each magnetic pole is at described rotor radial circumference uniform distribution;
Described rotor core arranges multiple rivet hole, the misalignment Ci Ju center of described rivet hole, described Ci Ju center is the center of the rotor core between each magnetic pole, and multiple described riveted holes is uniformly distributed on the radial circumference of described rotor core;
Two sections that rivet mutually described rotor core offset angular θ, then:
K*360/ [2*LCM (Z, 2P)]-2≤θ≤k*360/ [2*LCM (Z, 2P)]+2, wherein, LCM (Z, 2P) be the least common multiple of number of stator slots Z and rotor number of poles 2P, k=1,3,5,7 ... for positive odd number, i.e. described in the described riveted holes misalignment of rotor core, the angle at Ci Ju center is θ/2.
More preferably, described in the misalignment of described rivet hole, the angle at Ci Ju center is 2 °-7 °.
More preferably, described permanent magnet is ferrite lattice.
More preferably, described synchronous magnetic resistance motor is a point yardage roll integer groove winding permanent magnet assist type synchronous magnetic resistance motor.
The invention has the beneficial effects as follows:
Synchronous magnetic resistance motor of the present invention, departs from yoke distance center certain angle by arranging the riveted holes center of circle, and the just anti-phase riveted joint of identical multistage iron core is formed, thus the two-stage rotor iron core be connected is staggered certain angle, and manufacturing process is simple, and cost is low; The multipiece rotor iron core segmentation dislocation certain angle of rotor, can make motor torque fluctuation decline 75%, reduce motor oscillating and noise.
Accompanying drawing explanation
Fig. 1 is synchronous magnetic resistance motor rotor core structure figure of the present invention;
The schematic diagram of the rotor embodiment one of Fig. 2 synchronous magnetic resistance motor of the present invention;
The schematic diagram of the rotor embodiment two of Fig. 3 synchronous magnetic resistance motor of the present invention;
The schematic diagram of the rotor embodiment three of Fig. 4 synchronous magnetic resistance motor of the present invention.
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.
Referring to figs. 1 through Fig. 4, synchronous magnetic resistance motor one embodiment of the present invention comprises rotor and stator, and rotor is formed by connecting by multipiece rotor iron core, and two sections of adjacent described rotor cores are positive and negative to connect, and rotor is riveted by the described rotor core of 2-8 section and formed.
At rotor in the radial direction, each magnetic pole of rotor core is provided with multilayer arc-shaped permanent magnet groove 3, forms a q axle magnetic circuit between adjacent two-layer described permanent magnet trough 3, in described permanent magnet trough, be provided with permanent magnet 1,2, permanent magnet 1,2 is ferrite lattice, and cost is low.Permanent magnet is mounted to make their polarity N, S in the arrangement replaced on the side of stator, so forms multiple tracks flux-obstruction.
Two pole polarity that rotor core is adjacent are contrary, and the permanent magnet trough 3 on each magnetic pole is at rotor radial circumference uniform distribution; Rotor core is arranged multiple rivet hole 5, the misalignment Ci Ju center of rivet hole 5, described Ci Ju center is the center of the rotor core between each magnetic pole, and multiple riveted holes 5 is uniformly distributed on the radial circumference of rotor core.
The two-stage rotor iron core offset angular θ riveted mutually, then:
K*360/ [2*LCM (Z, 2P)]-2≤θ≤k*360/ [2*LCM (Z, 2P)]+2, wherein, LCM (Z, 2P) be the least common multiple of number of stator slots Z and rotor number of poles 2P, k=1,3,5,7 ... for positive odd number, i.e. described in the described riveted holes misalignment of rotor core, the angle at yoke distance center is θ/2.So, what every section of rotor core produced humorously involves torque peak sequence, can effectively reduce humorously to involve torque ripple, reduces motor oscillating noise; Therefore, present embodiment provides a kind of manufacture technics comparatively simple, and cost is low, the permanent magnetism assist type synchronous magnetic resistance motor scheme that vibration noise is low.
As a kind of embodiment, the rotor core that rotor is L by two sections of height (thickness) is formed, and as shown in Figure 2, the first rotor iron core 7 and the second rotor core 2 are riveted together, the first rotor iron core 7 and the second rotor core 8 offset angular θ.Preferably, described in the misalignment of rivet hole 5, angle θ/2 at Ci Ju center (q axle) are 2 °-7 °.More excellent, when above-mentioned angle is 3 °, effect is better.
As a kind of embodiment, rotor is made up of the rotor core of three sections of differing heights, wherein the height of one section of rotor core is L, the height of two-stage rotor iron core is L/2 in addition, as shown in Figure 3, the height of third trochanter iron core 10 is L, the height of fourth trochanter iron core 9 and the 5th rotor core 11 is L/2, it is highly the adjacent or alternate setting of two sections of described rotor cores of L/2, namely fourth trochanter iron core 9 and the 5th rotor core 11 are arranged on the both sides of third trochanter iron core 10, or fourth trochanter iron core 9 and the 5th rotor core 11 are disposed adjacent.
As a kind of embodiment, as shown in Figure 4, rotor is made up of the rotor core that four sections are highly L/2.Four sections of rotor cores are respectively the 6th rotor core 12, the 7th rotor core 13, the 8th rotor core 14 and the 9th rotor core 15, adjacent two-stage rotor iron core is the angle θ that staggers by the rivet hole riveted joint of its upper offset, namely jointly forms a rotor by four iron leg cores.
The synchronous magnetic resistance motor of each embodiment above, its rotor core has the identical rotor core riveted joint of multistage to form, by arranging the riveted holes departing from yoke distance center certain angle, the just anti-phase riveted joint of identical multistage iron core is formed, thus the two-stage rotor iron core be connected is staggered certain angle, its magnet adopts the ferrite magnetic steel of low cost, so, motor manufacturing technology more simply can realize, and cost is low; Motor cogging torque is little, and torque ripple is little, and motor oscillating noise is little.
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 (4)

1. a synchronous magnetic resistance motor, is characterized in that:
Comprise rotor and stator;
Described rotor is formed by connecting by three-stage rotor iron core, and two sections of adjacent described rotor cores are positive and negative to connect; Wherein the height of one section of described rotor core is L, and the height of other two sections of described rotor cores is L/2, is highly the adjacent or alternate setting of two sections of described rotor cores of L/2;
At described rotor in the radial direction, each magnetic pole of described rotor core is provided with multilayer arc-shaped permanent magnet groove, forms a q axle magnetic circuit between adjacent two-layer described permanent magnet trough, in described permanent magnet trough, be provided with permanent magnet;
Two pole polarity that described rotor core is adjacent are contrary, and the described permanent magnet trough on each magnetic pole is at described rotor radial circumference uniform distribution;
Described rotor core arranges multiple rivet hole, the misalignment Ci Ju center of described rivet hole, described Ci Ju center is the center of the rotor core between each magnetic pole, and multiple described rivet hole is uniformly distributed on the radial circumference of described rotor core;
Two sections that rivet mutually described rotor core offset angular θ, then:
K*360/ [2*LCM (Z, 2P)]-2≤θ≤k*360/ [2*LCM (Z, 2P)]+2, wherein, LCM (Z, 2P) be the least common multiple of number of stator slots Z and rotor number of poles 2P, k=1,3,5,7 ... for positive odd number, i.e. described in the described rivet hole misalignment of rotor core, the angle at Ci Ju center is θ/2.
2. synchronous magnetic resistance motor according to claim 1, is characterized in that:
Described in the misalignment of described rivet hole, the angle at Ci Ju center is 2 °-7 °.
3. synchronous magnetic resistance motor according to claim 1 and 2, is characterized in that:
Described permanent magnet is ferrite lattice.
4. synchronous magnetic resistance motor according to claim 1 and 2, is characterized in that: described synchronous magnetic resistance motor is a point yardage roll integer groove winding permanent magnet assist type synchronous magnetic resistance motor.
CN201310733674.8A 2013-12-25 2013-12-25 Synchronous magnetic resistance motor Active CN104600946B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310733674.8A CN104600946B (en) 2013-12-25 2013-12-25 Synchronous magnetic resistance motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310733674.8A CN104600946B (en) 2013-12-25 2013-12-25 Synchronous magnetic resistance motor

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CN104600946B true CN104600946B (en) 2016-04-13

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015215585A1 (en) * 2015-08-14 2017-02-16 Ksb Aktiengesellschaft Rotor package for a synchronous reluctance machine
CN105515240B (en) * 2015-12-24 2018-01-16 赖家顺 The outer rotor of interior inserted permagnetic synchronous motor
CN107591920A (en) * 2017-09-11 2018-01-16 珠海格力节能环保制冷技术研究中心有限公司 Rotor and motor
CN109149816A (en) * 2018-09-28 2019-01-04 苏州润吉驱动技术有限公司 A kind of spliced outer rotor of permanent magnet motor
CN113783328A (en) * 2021-08-27 2021-12-10 江麓机电集团有限公司 High-performance rotor based on electric transmission system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006304546A (en) * 2005-04-22 2006-11-02 Toshiba Corp Permanent magnet reluctance type rotary electric machine
CN102684337A (en) * 2012-05-14 2012-09-19 浙江大学 Subsection skewed-pole type permanent magnet synchronous motor rotor
CN202444347U (en) * 2012-03-05 2012-09-19 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet auxiliary synchronous reluctance motor and rotor thereof
JP5239200B2 (en) * 2007-04-17 2013-07-17 三菱電機株式会社 Permanent magnet rotating electric machine
CN203674832U (en) * 2013-12-25 2014-06-25 珠海格力节能环保制冷技术研究中心有限公司 Synchronous reluctance motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006304546A (en) * 2005-04-22 2006-11-02 Toshiba Corp Permanent magnet reluctance type rotary electric machine
JP5239200B2 (en) * 2007-04-17 2013-07-17 三菱電機株式会社 Permanent magnet rotating electric machine
CN202444347U (en) * 2012-03-05 2012-09-19 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet auxiliary synchronous reluctance motor and rotor thereof
CN102684337A (en) * 2012-05-14 2012-09-19 浙江大学 Subsection skewed-pole type permanent magnet synchronous motor rotor
CN203674832U (en) * 2013-12-25 2014-06-25 珠海格力节能环保制冷技术研究中心有限公司 Synchronous reluctance motor

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