CN1463065A - Permanent-magnet rotary dynamo and compressor using same - Google Patents
Permanent-magnet rotary dynamo and compressor using same Download PDFInfo
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- CN1463065A CN1463065A CN 03120580 CN03120580A CN1463065A CN 1463065 A CN1463065 A CN 1463065A CN 03120580 CN03120580 CN 03120580 CN 03120580 A CN03120580 A CN 03120580A CN 1463065 A CN1463065 A CN 1463065A
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Abstract
To provide a high output low noise permanent magnet type electric motor. The permanent magnet type electric motor 11 comprises a stator 7 having a concentrated armature winding 9 surrounding the tees 10 in a plurality of slots 13 formed in the stator core 12, and a rotor 1 having permanent magnets 3 contained in a plurality of permanent magnet insertion holes 14 formed in the rotor core 2. The pole angle [theta]1 of the rotor core is set in a range of electric angle of 100-120[deg] and a recess is formed in the outer circumferential surface of the rotor core between the poles thus ensuring a high output while reducing noise.
Description
Technical field
The present invention relates in rotor, dispose the permanent-magnet rotary electric machine of magnetic field, particularly about being assemblied in the permanent-magnet rotary electric machine in the compressor in air conditioner, refrigerator or the freezer etc. with permanent magnet.
Background technology
In the past, this permanent-magnet rotary electric machine adopted different shape.For example, open the permanent-magnet rotary electric machine described in the 2001-218404 communique the spy, have, be wound with the stator of the armature winding of the concentrated winding that is formed on a plurality of teeth in the stator core and be formed on a plurality of permanent magnets in rotor core rotor of permanent magnet of packing into that inserts in the hole, make it produce the magnetic moment of torsion effectively with this, thereby improve the power output of electric rotating machine.
But,, yet must consider noise problem as electric rotating machine practicability though described conventional art just is conceived to improve the power output of electric rotating machine.As making the permanent-magnet rotary electric machine noise become that big main cause can have been enumerated the pulsation moment of torsion and electromagnetism helps the power of shaking or the like, but be effective as long as reduce the gap magnetic flux density for reducing these influences.But, reduce the gap magnetic flux density by the expansion gap merely and will reduce because of magnetic resistance becomes the magnetic flux that permanent magnet is produced, thus can cause the magnetic moment of torsion to diminish, the power output reduction.Therefore, should be when the magnetic flux that makes the magnetic moment of torsion increase, only reducing becomes the magnetic flux that noise produces reason.
Summary of the invention
The objective of the invention is, provide a kind of and can improve the permanent-magnet rotary electric machine that power output can reduce noise again.
For reaching described purpose, permanent-magnet rotary electric machine of the present invention is included in the stator that armature winding is set in a plurality of grooves that are formed in the stator core; Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core; The magnetic pole angle of setting described rotor core is being spent in the electric angle scopes of 120 degree from 100, is formed with recess at the interpolar of the outer peripheral face of described rotor core.
The present invention also provides a kind of permanent-magnet rotary electric machine, it is characterized in that: be included in the stator that the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves that are formed in the stator core; Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core; The slot pitch of setting the magnetic pole angle of described rotor core and described stator core is roughly the same, is formed with recess at the interpolar of described rotor core outer peripheral face.
The present invention also provides a kind of permanent-magnet rotary electric machine, it is characterized in that: be included in the stator that the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves that are formed in the stator core; Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core; The end shape of the teeth of described stator core is formed circular arc shaped portion and linear combined shaped partly, is that the magnetic pole angle of described rotor core and the slot pitch of described stator core form recess at the interpolar of described rotor core outer peripheral face roughly the samely.
In addition, the present invention also provides a kind of permanent-magnet rotary electric machine, it is characterized in that: be included in the stator that the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves that are formed in the stator core; Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core; The number of poles of described rotor is 2: 3 with the ratio of the groove number of described stator, and the magnetic pole angle of setting described rotor is spent in the electric angle scopes of 120 degree 100, is formed with recess at the interpolar of the outer peripheral face of described rotor core.
In addition, the present invention also provides a kind of permanent-magnet rotary electric machine, it is characterized in that: be included in the stator that the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves that are formed in the stator core; Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core; The number of poles of described rotor is 2: 3 with the ratio of the groove number of described stator, the teeth end shape of described stator core is formed the combined shaped of circular arc shaped portion and linear part, and form recess at the interpolar of the outer peripheral face of described rotor core 100 for the magnetic pole angle that makes described rotor core with spending in the electric angle scopes of 120 degree.
Find by various tests,, reduce noise, only need magnetic flux, reduce the armature reaction magnetic flux and just can by the generation magnetic moment of torsion that increases permanent magnet in the power output that improves permanent-magnet rotary electric machine.At this, advance with the electric angles of 90 degree roughly with respect to the magnetic flux of permanent magnet because generally be the armature reaction magnetic flux, just can so only need reduce the inductance that produces based on the coupling of rotor core shape that is known as axis of abscissas (q axle) inductance and armature winding.
The present invention is based on this result of the test, magnetic pole angle by making rotor core is spent in the scope of 120 degree electric angles ground 100, interpolar (q axle side) at the outer peripheral face of rotor core forms recess, because in the magnetic flux that increases with the permanent magnet of armature winding interlinkage, can reduce the inductance of axis of abscissas, so can reduce the armature reaction magnetic flux.Therefore, can be provided at the permanent-magnet rotary electric machine that can reduce noise when improving power output again.
Description of drawings
Fig. 1 is the profile of the radial section shape of the expression embodiment 1 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 2 is the profile of the radial section shape after the rotor of Fig. 1 is amplified in expression.
Fig. 3 is the profile of radial section shape of the amplification rotor of the expression embodiment 2 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 4 is the profile of radial section shape of the amplification rotor of the expression embodiment 2 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 5 is the profile of radial section shape of the amplification rotor of the expression embodiment 3 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 6 is the profile of radial section shape of the amplification rotor of the expression embodiment 4 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 7 is the profile of radial section shape of the amplification rotor of the expression embodiment 4 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 8 is the profile of the radial section shape of the expression embodiment 5 that adopts permanent-magnet rotary electric machine of the present invention.
Fig. 9 is the profile of the radial section shape of the expression embodiment 6 that adopts permanent-magnet rotary electric machine of the present invention.
Figure 10 is the profile of radial section shape of the permanent-magnet rotary electric machine of expression comparative example.
Figure 11 is the performance plot of the permanent-magnet rotary electric machine of expression embodiment 1.
Figure 12 is the performance plot of the permanent-magnet rotary electric machine of expression embodiment 2.
Figure 13 is the section shape figure of the expression compressor relevant with the present invention.
Among the figure: 1-rotor, 2-rotor core, 3-permanent magnet, the 4-clearance portion, 6-rotating shaft embedded hole, 7-stator, the 8-rear of core, 9-armature winding, 10-teeth, the 11-permanent-magnet rotary electric machine, 12-stator core, 13-groove, 14-permanent magnet patchhole, 15-rotor core recess, 17-fixed scroll member, 18,21-end plate, 19, the 22-cover plate, the 20-rotary vortex rotary part, the 23-embedded hole, 24-discharge chambe, 25-outlet, the 26-support, the 27-compression container, 28-discharge pipe, 29-oil delay portion, the 30-oilhole, the 31-sliding bearing.
Embodiment
Below, embodiments of the invention are described in detail in conjunction with Fig. 1～Figure 13.In each figure, the same parts of identical symbolic representation.Also have, in this expression is about 4 utmost point permanent-magnet rotary electric machines.
(embodiment 1)
Fig. 1 represents to adopt the radial section shape of the permanent-magnet rotary electric machine of the embodiment of the invention 1.In the drawings, permanent-magnet rotary electric machine 11 is made of stator 7 and rotor 1.Stator 7 has in the stator core 12 be made up of teeth 10 and rear of core 8 and the groove between teeth 10 13 armature winding 9 (three phase windings are by U phase winding 9a, V phase winding 9b, the W phase winding becomes) of the concentrated winding that installs around around teeth 10.At this, permanent-magnet rotary electric machine 11 is because of being 4 utmost points, 6 grooves, so the electric angle of slot pitch is 120 degree.
Fig. 2 is the rotor radial section shape figure that adopts the embodiment of the invention 1 to amplify.The permanent magnet 3 that is loaded in the permanent magnet patchhole 14 of rotor 1 by the in-line that forms in rotor core 2, rotating shaft (not diagram) and be chimeric rotation axis hole 6 compositions.At this, the axle that rotor 1 is extended to the pole center direction is decided to be the d axle, spool is decided to be the q axle to what to the pole center direction with electric angle be that direction is extended between the magnetic pole that separates of 90 degree.In Fig. 2, the shape of the interpolar of rotor core 2 outer peripheral faces (q axle) side is formed recess shapes (being combined into 2 recesses that slightly are in the shape of the letter V), the magnetic pole angle θ 1 that makes rotor core 2 and slot pitch are about equally.
Figure 10 is comparative example rotor radial section shape figure.Under situation about permanent magnet 3 being embedded in the rotor cores 2,,, preventing the magnetic flux short circuit, and make the moment of torsion increase of magnet magnetic flux so also make recess shapes at the interpolar (aspect the q axle) of comparative example rotor core 2 outer peripheral faces because of the magnetic flux of permanent magnet 3 easily is short-circuited.But because the purpose that interpolar is formed recess shapes is in order to prevent the short circuit of magnet magnetic flux, institute is so that the parallel sided of recess 15 and permanent magnet patchhole 14.
, the Driven Compressor as improvement object of the present invention often has noise problem with permanent-magnet rotary electric machine 11.Become permanent-magnet rotary electric machine 11 noises and become that big main cause can have been enumerated the pulsation moment of torsion and electromagnetism helps the power of shaking or the like, for reducing these influences, as long as just can reduce the gap magnetic flux density can.But, merely reduce the gap magnetic flux density by enlarging the gap, can make magnetic resistance become greatly and make the magnetic flux minimizing that permanent magnet produces, so diminishing, bring the magnetic moment of torsion power output to reduce.Therefore, finding by various tests should be under the prerequisite of the permanent magnet magnetic flux that does not reduce to produce the magnetic moment of torsion, only reduces that to become be the armature reaction magnetic flux that produces the noise main cause.At this because generally be the magnetic flux of the relative permanent magnet of armature reaction magnetic flux, with roughly 90 the degree electric angles advance, so if reduce axis of abscissas (q axle) inductance can.
Figure 11 is the performance plot of expression with respect to the magnetic pole angle θ 1 of permanent-magnet rotary electric machine.Axis of abscissas is the magnetic pole angle θ 1 that represents with electric angle, axis of ordinates be expression the inductance of the induced electromotive force of the electric rotating machine of comparative example (Figure 10, θ 1=148 degree) and axis of abscissas with 1.0p.u. induced electromotive force and the axis of abscissas inductance during as standardization.At this, (d /dt) proportional is so can judge with the size of induced electromotive force the increase and decrease that produces the useful permanent magnet magnetic flux of magnetic moment of torsion because of the time with armature winding 9 interlinkage flux changes for induced electromotive force.
Can know that from Figure 11 because magnetic pole angle θ 1 is more little, then gap (space) portion increases more, so though the reduction of axis of abscissas inductance is almost constant when θ 1=120 degree is following.Therefore, θ 1 is diminished be advisable, particularly be preferably in below the θ 1=120 degree for reaching low noiseization.
On the other hand, when above, induced electromotive force becomes big than comparative example to θ 1 about 80 degree, and θ 1 is when 80 degree are following, and is littler than in the past motor.Though it is proportional that the time of induced electromotive force and armature winding 9 interlinkage fluxs changes, because under the situation of concentrating winding, be the armature winding 9 that is provided with around teeth 10, become magnetic flux with the armature winding interlinkage so flow into the magnetic flux of teeth 10.For the quantity ratio of the number of poles of permanent magnet 3 and groove 13 is 2: 3 permanent-magnet rotary electric machine 11, because of slot pitch is the electric angles of 120 degree, so if make magnetic pole angle θ 1 and slot pitch unanimous on the whole, just can effectively utilize the magnetic flux of permanent magnet 3.Therefore, θ 1=120 becomes maximum when spending, and that θ 1 spends in the 140 degree scopes 100 is almost constant.
As mentioned above, spend in the scope of 120 degree, when the motor power output improves, can also reach the purpose of low noiseization if magnetic pole angle θ 1 is set in about 100.
(embodiment 2)
Fig. 3 and Fig. 4 are the profiles that the amplification rotor radial section shape of permanent-magnet rotary electric machine embodiment 2 of the present invention is adopted in expression.At embodiment 2, be to be provided with clearance portion 4 with the difference of the embodiment 1 of Fig. 2 at the magnetic pole piece of rotor core 2 about Fig. 3 and Fig. 4.In addition, in Fig. 3, the magnetic pole piece of rotor 1 is provided with 2 interspace portions 4 axisymmetrically with respect to d, and has 1 in Fig. 4 clearance portion 4 on the d axle.
Figure 12 is the performance plot of expression with respect to the angle θ between the clearance portion that is arranged on the permanent-magnet rotary electric machine rotor magnetic pole department 2.Axis of abscissas is the angle θ 2 between the clearance portion of representing with electric angle 4, axis of ordinates be represent the induced electromotive force of motor (Figure 10) in the past and axis of abscissas inductance with 1.0p.u. induced electromotive force and the axis of abscissas inductance during as standardization.Therefore, the big more clearance portion 4 of θ 2 is the closer to interpolar (q axle), and the more little clearance portion of θ 24 is the closer to pole center.At this, when θ 2=0 spent, as shown in Figure 4, clearance portion 4 just had 1 on the d axle, and the width W 2 of clearance portion 4 becomes 2 times of W1 (W2=2 * W1).And, get when making θ 1=120 degree certain value in the magnetic pole angle, as can be seen from Figure 11 this result be θ 1=120 degree under very close to each other 4 situation, induced electromotive force is 1.06p.u., the axis of abscissas inductance is 0.83p.u..
Induced electromotive force slightly reduces because of clearance portion 4 is set, though along with the reducing to have and reduce tendency of angle θ 2, but bigger than comparative example.On the other hand, the axis of abscissas inductance diminishes because of clearance portion 4 is set, and reducing showing and reduce along with angle θ 2.Therefore, on the basis that magnetic pole angle θ 1 is set in the scopes of about 100 to 120 degree, when the magnetic pole piece at rotor 1 is provided with clearance portion 4, can be than comparative example power output height and noise diminishes.And, stand in the angle of low noiseization, preferably clearance portion 4 is set in pole center (on the d axle) position.
(embodiment 3)
Fig. 5 is the profile of the radial section shape of the expression amplification rotor 1 that adopts permanent-magnet rotary electric machine embodiment 3 of the present invention.The embodiment 3 of Fig. 5 is that the shape of permanent magnet 3 is formed the V font with the difference of the embodiment 1 of Fig. 2.The embodiment 1 of present embodiment 3 and Fig. 2 can obtain same effect.
(embodiment 4)
Fig. 6 and Fig. 7 are the profiles of the radial section shape of the expression amplification rotor 1 that adopts permanent-magnet rotary electric machine embodiment 4 of the present invention.The embodiment 4 of Fig. 6 and Fig. 7 is that clearance portion 4 is set on the magnetic pole piece of rotor core 2 with the difference of the embodiment 3 of Fig. 5.In addition, in Fig. 6, be on the magnetic pole piece of rotor 1, to be provided with 2 interspace portions 4 relatively symmetrically, and be that the d axle is provided with 1 interspace portion 4 among Fig. 7 with the d axle.
On the basis that magnetic pole angle θ 1 is set in about 100 to 120 degree scopes, when clearance portion 4 is set, when effectively utilizing the magnetic flux of permanent magnet 3, because of the inductance that can make axis of abscissas reduces, so when the motor power output improves, can reach the purpose of low noiseization.And, stand on the angle of low noiseization, in the position of pole center (on the d axle) clearance portion 4 is set at last.
(embodiment 5)
Fig. 8 is the profile that the section shape of permanent-magnet rotary electric machine embodiment 5 of the present invention is adopted in expression.Embodiment 5 shown in Figure 8 is the top of stator teeth 10 to be formed the shape that partly is combined into by circular arc shaped portion and linear with the difference of embodiment 1 shown in Figure 1.
Because such structure, the gap length in the end on teeth 10 tops becomes big, so alleviated in the flux concentrating of the end on teeth 10 tops, the pulsation moment of torsion is reduced.
Therefore, by adopting fit system can reduce noise significantly by the rotor 1 shown in embodiment 1 and the embodiment 4.
(embodiment 6)
Fig. 9 is the profile that the section shape of permanent-magnet rotary electric machine embodiment 6 of the present invention is adopted in expression.Embodiment shown in Figure 96 with the difference of embodiment 1 and embodiment 5 is, armature winding 9 press U phase winding 9a, V phase winding 9b, the order of the W phase winding 9c interior distributed winding of groove 13 of packing into successively.
Method of winding at armature winding 9 has under the situation of this species diversity, owing to adopt the fit system with the rotor 1 shown in the embodiment 4 by embodiment 1, so when effectively utilizing the magnetic flux of permanent magnet 3, the inductance of axis of abscissas is reduced, therefore, when the power output of motor improves, can reach the purpose of low noiseization again.
(embodiment 7)
Figure 13 is the profile of the expression compressor cross-section structure relevant with the present invention.Compressor engagement be formed with the centrifugal lid utmost point 19 upright on the end plate 18 of fixed scroll member 17 and on the end plate 21 of rotation scroll portion 20 upright centrifugal cover plate 22, and rely on bent axle 23 to make 20 rotations of rotation scroll member carry out compressed action.The discharge chambe 24 (24a, the 24b that form by fixed scroll member 17 and rotation scroll member 20 ...) among, the discharge chambe that is positioned at outer radius is accompanied by to rotatablely move shifts to the center of two scroll members 17,20, and volume dwindles gradually. Discharge chambe 24a, 24b at the center that reaches two scroll members 17,20 near the time, outlet 25 discharges of the Compressed Gas in two discharge chambes 24 from being communicated with discharge chambe.The Compressed Gas of discharging is by in the compression container 27 that is arranged on fixing gas passage (not have diagram) arrival support 26 bottoms of rotating parts 17 and support 26, outside the discharge pipe 28 discharge compressors that are located at compression container 27 sides.Have again,, permanent-magnet rotary electric machine 11 is housed in pressure vessel, rely on the rotary speed rotation of the converter of dress (not having diagram) control in addition, carry out compressed action for this compressor.At this, drive motor is the permanent-magnet rotary electric machine 11 that is made of stator 7 and rotor 1.
The drive source that compressor is used as air conditioner, refrigerator or freezer etc. uses, because of in the whole year, turning round continuously, so to prevent the global warming problem and energy-conservation be most important goods.When using permanent-magnet rotary electric machine, though because the high efficiency of electric rotating machine has reached purpose of energy saving, if noise just can not adopt greatly for this drive source., when using permanent-magnet rotary electric machine of the present invention,, can solve environmental problem, so the compressor that can reach the efficient power-saving purpose can be provided because of noise is little as drive source.
As mentioned above, if adopt the present invention, place the purpose that the induced electromotive force of motor improves in the permanent magnet formula, because of the axis of abscissas inductance reduces, so the permanent-magnet rotary electric machine of high-output power and low noise can be provided.
If adopt the present invention can also provide noise little compressor.
Claims (10)
1. a permanent-magnet rotary electric machine is characterized in that: comprise
The stator of armature winding is set in a plurality of grooves on being formed on stator core;
Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core;
The magnetic pole angle of setting described rotor core is being spent in the electric angle scopes of 120 degree from 100,
Interpolar at the outer peripheral face of described rotor core is formed with recess.
2. a permanent-magnet rotary electric machine is characterized in that: comprise
The stator of the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves on being formed on stator core;
Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core;
The slot pitch of setting the magnetic pole angle of described rotor core and described stator core is roughly the same,
Interpolar at described rotor core outer peripheral face is formed with recess.
3. a permanent-magnet rotary electric machine is characterized in that: comprise
The stator of the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves on being formed on stator core;
Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core;
The end shape of the teeth of described stator core is formed circular arc shaped portion and linear combined shaped partly,
Be that the magnetic pole angle of described rotor core and the slot pitch of described stator core form recess at the interpolar of described rotor core outer peripheral face roughly the samely.
4. a permanent-magnet rotary electric machine is characterized in that: comprise
The stator of the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves on being formed on stator core;
Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core;
The number of poles of described rotor is 2: 3 with the ratio of the groove number of described stator,
Set the magnetic pole angle of described rotor and spend in the electric angle scope of 120 degree 100,
Interpolar at the outer peripheral face of described rotor core is formed with recess.
5. a permanent-magnet rotary electric machine is characterized in that: comprise
The stator of the armature winding of the concentrated winding that centers on teeth is set in a plurality of grooves on being formed on stator core;
Insert in the hole and be incorporated with the rotor of permanent magnet being formed on a plurality of permanent magnets in the rotor core;
The number of poles of described rotor is 2: 3 with the ratio of the groove number of described stator,
The teeth end shape of described stator core is formed the combined shaped of circular arc shaped portion and linear part, and form recess at the interpolar of the outer peripheral face of described rotor core 100 for the magnetic pole angle that makes described rotor core with spending in the electric angle scopes of 120 degree.
6. according to any described permanent-magnet rotary electric machine in the claim 1 to 5, it is characterized in that:
The shape of recess of interpolar that is formed on the outer peripheral face of described rotor core is the recess that is combined by a plurality of shapes that slightly are in the shape of the letter V.
7. according to any described permanent-magnet rotary electric machine in the claim 1 to 6, it is characterized in that:
The shape that is embedded in the permanent magnet of described rotor core is V word or the in-line shape that is projection with respect to described armature spindle.
8. according to any described permanent-magnet rotary electric machine in the claim 1 to 7, it is characterized in that:
The recess shapes of interpolar that is formed on the outer peripheral face of described rotor core is that circumferential lengths at outer peripheral face is than long in the circumferential lengths of described rotor inner headed face.
9. according to any described permanent-magnet rotary electric machine in the claim 1 to 8, it is characterized in that:
1 gap of extending in diametric(al) is set on the magnetic pole piece of described rotor core at least.
10. compressor is characterized in that:
Any described permanent-magnet rotary electric machine in the claim 1 to 9 as drive source.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002158508 | 2002-05-31 | ||
| JP2002158508A JP2004007875A (en) | 2002-05-31 | 2002-05-31 | Permanent magnet type electric motor and compressor employing it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1463065A true CN1463065A (en) | 2003-12-24 |
| CN1249885C CN1249885C (en) | 2006-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03120580 Expired - Fee Related CN1249885C (en) | 2002-05-31 | 2003-03-14 | Permanent-magnet rotary dynamo and compressor using same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004007875A (en) |
| CN (1) | CN1249885C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188369B (en) * | 2006-11-24 | 2012-09-12 | 株式会社日立制作所 | Permanent magnet electrical rotating machine, permanent magnet rotor and wind power generating system |
| CN102857000A (en) * | 2012-08-31 | 2013-01-02 | 杭州娃哈哈集团有限公司 | Embedded sine-profile permanent motor rotor |
| CN103023255A (en) * | 2011-09-26 | 2013-04-03 | 辐射通量实验室私人有限公司 | Electromagnetic machine |
| CN103580435A (en) * | 2012-07-18 | 2014-02-12 | 上海鸣志电器股份有限公司 | Magnetic steel built-in type brushless DC motor |
| CN104253499A (en) * | 2014-09-19 | 2014-12-31 | 江苏大学 | Direct-axis magnetic field enhanced type wide-range speed control permanent magnet brushless motor for electric automobile |
| CN104578493A (en) * | 2013-10-22 | 2015-04-29 | 株式会社日立产机系统 | Permanent magnet rotation motor and compressor using the same |
| CN109951038A (en) * | 2019-03-05 | 2019-06-28 | 南京航空航天大学 | Bilateral excitation type tangential magnet-steel hybrid exciting brushless motor |
| CN112425035A (en) * | 2018-07-13 | 2021-02-26 | 西门子股份公司 | Firm material layer |
| US12046951B2 (en) | 2018-07-13 | 2024-07-23 | Siemens Aktiengesellschaft | Method for producing a magnetic material layer |
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| JP4340632B2 (en) * | 2005-01-28 | 2009-10-07 | 株式会社日立産機システム | Permanent magnet type rotating electric machine and compressor using the same |
| JP4736472B2 (en) * | 2005-02-28 | 2011-07-27 | パナソニック株式会社 | Electric motor |
| JP2010004676A (en) * | 2008-06-20 | 2010-01-07 | Ihi Corp | Permanent magnet synchronous motor |
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| KR101321279B1 (en) * | 2012-04-19 | 2013-10-28 | 삼성전기주식회사 | Rotor assembly |
| JP6009859B2 (en) * | 2012-08-10 | 2016-10-19 | アイチエレック株式会社 | Driving apparatus and driving method |
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| JP6080554B2 (en) * | 2013-01-09 | 2017-02-15 | 三菱電機株式会社 | Neodymium permanent magnet type motor and hermetic compressor equipped with the neodymium permanent magnet type motor |
| WO2016015289A1 (en) * | 2014-07-31 | 2016-02-04 | 广东威灵电机制造有限公司 | Motor rotor and motor having same |
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2002
- 2002-05-31 JP JP2002158508A patent/JP2004007875A/en active Pending
-
2003
- 2003-03-14 CN CN 03120580 patent/CN1249885C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188369B (en) * | 2006-11-24 | 2012-09-12 | 株式会社日立制作所 | Permanent magnet electrical rotating machine, permanent magnet rotor and wind power generating system |
| CN103023255A (en) * | 2011-09-26 | 2013-04-03 | 辐射通量实验室私人有限公司 | Electromagnetic machine |
| CN103580435A (en) * | 2012-07-18 | 2014-02-12 | 上海鸣志电器股份有限公司 | Magnetic steel built-in type brushless DC motor |
| CN102857000A (en) * | 2012-08-31 | 2013-01-02 | 杭州娃哈哈集团有限公司 | Embedded sine-profile permanent motor rotor |
| CN104578493A (en) * | 2013-10-22 | 2015-04-29 | 株式会社日立产机系统 | Permanent magnet rotation motor and compressor using the same |
| CN104253499A (en) * | 2014-09-19 | 2014-12-31 | 江苏大学 | Direct-axis magnetic field enhanced type wide-range speed control permanent magnet brushless motor for electric automobile |
| CN104253499B (en) * | 2014-09-19 | 2017-07-18 | 江苏大学 | The magnetic-field-enhanced wide range speed control permanent magnetic brushless of d-axis used for electric vehicle |
| CN112425035A (en) * | 2018-07-13 | 2021-02-26 | 西门子股份公司 | Firm material layer |
| CN112425035B (en) * | 2018-07-13 | 2024-04-16 | 西门子股份公司 | Firm material layer |
| US12046951B2 (en) | 2018-07-13 | 2024-07-23 | Siemens Aktiengesellschaft | Method for producing a magnetic material layer |
| CN109951038A (en) * | 2019-03-05 | 2019-06-28 | 南京航空航天大学 | Bilateral excitation type tangential magnet-steel hybrid exciting brushless motor |
| CN109951038B (en) * | 2019-03-05 | 2020-07-24 | 南京航空航天大学 | Bilateral excitation type tangential magnetic steel mixed excitation brushless motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1249885C (en) | 2006-04-05 |
| JP2004007875A (en) | 2004-01-08 |
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