CN110061577A - Rotor, permanent magnet synchronous motor and compressor - Google Patents
Rotor, permanent magnet synchronous motor and compressor Download PDFInfo
- Publication number
- CN110061577A CN110061577A CN201810049923.4A CN201810049923A CN110061577A CN 110061577 A CN110061577 A CN 110061577A CN 201810049923 A CN201810049923 A CN 201810049923A CN 110061577 A CN110061577 A CN 110061577A
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- CN
- China
- Prior art keywords
- magnetic sheet
- rotor
- locating slot
- magnetic
- volume
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- 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)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention provides rotor, permanent magnet synchronous motor and compressor, and wherein rotor includes: iron core, and the iron core offers multiple locating slots along its circumferential direction, and the locating slot has locating slot volume；And multiple magnetic sheets, it is assigned respectively in multiple locating slots, the magnetic sheet has magnetic sheet volume, and the magnetic sheet volume is less than the locating slot volume.The actual volume of magnetic sheet by being set as the volume less than locating slot by the present invention, to reduce the magnet dosage of magnetic sheet；It is used cooperatively high-performance trade mark magnet simultaneously, magnetic flux remains unchanged while so that magnet dosage is greatly reduced, to optimize motor performance.
Description
Technical field
The present invention relates to field of refrigeration equipments, specifically, being related to a kind of rotor, permanent magnet synchronous motor and compressor.
Background technique
Magnet is one of permanent magnet synchronous motor important component, for generating magnetic field.
Currently, be mainly cuboid for the magnet of permanent magnet synchronous motor, for example, length and the consistent length of motor height
Cube.It is whole usually using the magnet or adjustment motor of high standard when needing to optimize by magnet motor performance and cost
Height, will increase cost using the magnet of high standard, and the height for adjusting motor entirety will affect the whole design of motor,
Limitation is bigger.
Therefore, a solution saves magnet dosage by reducing the length of rectangular magnet body, promotes motor sexual valence
Than.But this design be easy to cause magnet brow leakage, and the loss that is vortexed increases, and becomes complicated, manufacture with the assembling of rotor
The problems such as efficiency reduces.
Summary of the invention
For the problems of the prior art, the object of the present invention is to provide a kind of rotor, permanent magnet synchronous motor and compressor,
By the volume of careful design magnetic sheet, material cost can be not only saved, and guarantees that magnetic sheet is assembled to the fluency of rotor process
And operability, improve motor performance.
According to an aspect of the present invention, a kind of rotor is provided, permanent magnet synchronous motor is suitable for, the rotor includes:
Iron core, the iron core offer multiple locating slots along its circumferential direction, and the locating slot has locating slot volume；And
Multiple magnetic sheets are assigned respectively in multiple locating slots, and the magnetic sheet has magnetic sheet volume, the magnetic sheet volume
Less than the locating slot volume.
Preferably, the magnetic sheet has cuboid ontology, and the cuboid ontology lacks multiple apex angles, forms multiple missings
Face.
Preferably, the quantity in the missing face is 2 to 8.
Preferably, any missing face is plane, arc surface, the combination of any one or more in cascaded surface.
Preferably, five times of length of the side length adjacent with the missing face are greater than the corresponding side length of the cuboid ontology
Length.
Preferably, a magnetic sheet is equipped in each locating slot, the magnetic sheet includes along the rotation of the iron core
Multiple magnetic stripe parts of the direction segmentation of mandrel.
Preferably, gap is equipped between magnetic stripe part described in every two.
Preferably, multiple magnetic stripe parts are respectively equal along the circumferential width of the iron core.
According to another aspect of the present invention, a kind of permanent magnet synchronous motor is provided, the permanent magnet synchronous motor includes above-mentioned
Rotor.
According to another aspect of the present invention, a kind of compressor is provided, the compressor includes above-mentioned permanent magnet synchronous electric
Machine.
Compared with prior art, usefulness of the present invention is embodied in:
The apex angle that the present invention will be used for the cuboid magnetic sheet of rotor cuts a part of ferromagnetic material and forms missing face, passes through control
The quantity and size in missing face processed not only save ferromagnetic material cost, while guaranteeing magnetic flux with the use of high performance magnet
It is constant；
In addition, design of the invention can guarantee the smoothness during the magnetic sheet after cutting forms missing face is assembled to rotor
Property and operability, improve motor performance.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon.
Fig. 1 is a kind of schematic top plan view of rotor of the invention；
Fig. 2 is another schematic top plan view of rotor of the invention；
Fig. 3 is a kind of cutting mode schematic diagram in the missing face of magnetic sheet of the invention；
Fig. 4 is another cutting mode schematic diagram in the missing face of magnetic sheet of the invention；
Fig. 5 is the schematic diagram that magnetic sheet of the invention has plane missing face；
Fig. 6 is the schematic diagram that magnetic sheet of the invention has arc surface missing face；
Fig. 7 is the schematic diagram that magnetic sheet of the invention has cascaded surface missing face；
Fig. 8 is the scale diagrams of magnetic sheet of the invention in a preferred embodiment；
Fig. 9 is the segmentation schematic diagram of present invention magnetic sheet in a locating slot of rotor；
Figure 10 is the schematic top plan view of permanent magnet synchronous motor of the invention.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein.On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
Fig. 1 and Fig. 2 is two kinds of schematic top plan views of rotor of the invention.Referring to figs. 1 and 2, rotor 1 of the invention
Include:
Iron core 11, the iron core 11 are usually cylindrical in shape, and have the multiple locating slots 12 circumferentially opened up along it.The length of locating slot 12
It spends direction to extend along the direction of the Pivot axle of iron core 11, and equal with the height of iron core 11.That is, preferred real at one
It applies in mode, locating slot 12 is through cuboid groove-like structure of the iron core 11 along the both ends of its rotation center axis direction.It is multiple
Locating slot 12 is uniformly distributed along the circumferential direction of iron core 11, and from top view, multiple locating slots 12 are in about the dot O point of iron core 11
It is radial to be uniformly distributed.As shown in Figure 1, locating slot 12 may include 4, or as shown in Fig. 2, locating slot 12 may include 8
It is a, in practice, the locating slot 12 of different number can also be opened up on iron core 11 according to different demands, the present invention to this not
It is limited.
Wherein, each locating slot 12 has locating slot volume, and locating slot volume is by length, width and thickness multiplication institute
?.The length of locating slot 12 refers to its distance extended along the direction of the Pivot axle of iron core 11, in preferred embodiment
In be equal to iron core 11 height；The width of locating slot 12 refers to the distance of its circumferentially extending along iron core 11；The thickness of locating slot 12
Degree refers to its distance radially extended along iron core 11.
Multiple magnetic sheets 2 are assigned respectively in multiple locating slots 12.Each magnetic sheet 2 has magnetic sheet volume, the magnetic sheet of magnetic sheet 2
Volume is less than the locating slot volume of locating slot 12.
Magnetic sheet volume by controlling magnetic sheet 2 is less than the locating slot volume of locating slot 12, it is possible to reduce magnet dosage is saved
Material cost.
Specifically, magnetic sheet 2 has cuboid ontology, cuboid ontology lacks multiple apex angles, forms multiple missing faces, from
And make the magnetic sheet volume of magnetic sheet 2 less than the locating slot volume of locating slot 12.
Referring to shown in Fig. 3, magnetic sheet 2 has cuboid ontology 21, and apex angle is lacked on cuboid ontology 21 and forms missing face
22.It should be noted that in a preferred embodiment, the quantity in missing face 22 is small more than or equal to 1 on cuboid ontology 21
In being equal to 8, the preferred quantity for lacking face 22 is 2 to 8.In figs. 3 and 4 for clearly show that missing face 22 with it is rectangular
Positional relationship between body ontology 21 only illustrates a missing face 22 on cuboid ontology 21, this is not construed as to this hair
Bright limitation.In the signal of Fig. 3, missing face 22 is the cutting carried out along the direction thickness T of cuboid ontology 21, can also be regarded
Two apex angles of cuboid ontology 21 are missed out simultaneously for missing face 22.Or referring to shown in Fig. 4, missing face 22 can also be only
Lack an apex angle of cuboid ontology 21.In a preferred embodiment, missing face 22 is using mode shown in Fig. 3 rectangular
It cuts and is formed on body ontology 21, therefore hereafter and in attached drawing 5~9, the thickness T for being painted cuboid ontology 21 will be omitted, only drawn
Show the length L and width W of cuboid ontology 21, this is not construed as limitation of the present invention.
Wherein, the magnetic sheet volume of magnetic sheet 2 refers to the true volume of magnetic sheet 2, namely misses out the volume behind missing face 22.It is long
The length L of cube ontology 21 is equal to the length of locating slot 12, namely the height equal to iron core 11；The width W of cuboid ontology 21
Equal to the width of locating slot 12, namely refer to the distance of its circumferentially extending along iron core 11；The thickness of cuboid ontology 21 is equal to fixed
The thickness of position slot 12, namely refer to its distance radially extended along iron core 11.Namely in a preferred embodiment, though magnetic sheet 2
It so lacks a part of apex angle and forms missing face 22, but the length of 2 entirety of magnetic sheet is still equal to the length L of cuboid ontology 21, namely
Equal to the length of locating slot 12；The whole width of magnetic sheet 2 is still equal to the width W of cuboid ontology 21, namely is equal to locating slot 12
Width；The whole thickness of magnetic sheet 2 is still equal to the thickness T of cuboid ontology 21, namely the thickness equal to locating slot 12.In this way,
Magnetic sheet 2 can be very strongly sticked in locating slot 12, will not be slided due to rotor 1 rotates at work.
Referring to shown in Fig. 5 to Fig. 7, missing face 22 can be any one or more in plane, arc surface, cascaded surface
Combination.Specifically, referring to Figure 5, there are two planes to lack face 22 for tool on magnetic sheet 2.Dotted line frame shows that part both can be considered in figure
The cuboid ontology 21 of magnetic sheet 2 before cutting, also can be considered the contour line of locating slot 12.Referring to shown in Fig. 6, have on magnetic sheet 2
Two arc surfaces lack face 22.Or referring to shown in Fig. 7, there are two cascaded surfaces to lack face 22 for tool on magnetic sheet 2.Alternatively, missing face
22 can be a variety of combination of plane, arc surface, cascaded surface, be not repeated to be painted herein.
In a preferred embodiment, the quantity in the missing face of magnetic sheet 2 is set smaller than equal to 7, in this way by magnetic sheet 2
When assigning in locating slot 12, magnetic sheet 2 at least there is an apex angle to agree with completely with locating slot 12, and it is solid to be conducive to the engaging of magnetic sheet 2
Due in locating slot 12.And magnetic sheet 2 other apex angles are cut away a part and form missing face 22, are used so as to save magnet
Amount.
Referring to shown in Fig. 8, in one preferred embodiment, five times of length of the side length adjacent with missing face 22 are greater than
The length of the correspondence side length of cuboid ontology 21.Magnetic sheet 2 has along three missing faces that its thickness direction is cut away in Fig. 8
22, herein for convenience of description, magnetic sheet 2 is considered as a flat plane polygon, first group including being parallel to the direction length L
Opposite side, first group of opposite side specifically include that length is L1The first side and length be L2The second side, and be parallel to the width side W
To second group of opposite side, which specifically includes that width is W1Third side and width be W2The 4th side；Wherein, 5L1>
L, 5L2> L, 5W1> W, 5W2>W.That is, during cutting the formation missing face 22 of magnetic sheet 2, it can't be the length of magnetic sheet 2
Side L or broadside W are all cut away, but five times for controlling the length of the first group of opposite side formed after cutting are respectively greater than entire magnetic
The length of piece 2；Specially the first edge lengths L1Five times of length L, and the second edge lengths L for being greater than magnetic sheet 22Five times be greater than magnetic
The length L of piece 2.Five times of the width of second group of opposite side formed after cutting the width for being respectively greater than entire magnetic sheet 2 are controlled simultaneously；
Specially third hem width degree W1Five times of width W, and the 4th hem width degree W for being greater than magnetic sheet 22Five times be greater than magnetic sheet 2 width W.
The apex angle that the present invention will be used for the magnetic sheet 2 of rotor 1 cuts a part of ferromagnetic material and forms missing face 22, passes through control
The quantity and size in missing face 22 not only save ferromagnetic material cost, while guaranteeing magnetic flux with the use of high performance magnet
It is constant.By taking Fig. 8 as an example, the main appraisal standards of magnet performance of magnetic sheet 2 are magnetic flux, by equation φ=B*S it is found that φ is magnetic flux
Amount, B are magnetic flux density, and S is magnetic circuit sectional area, i.e. the magnetic circuit sectional area perpendicular to the thickness direction of magnetic sheet 2.Wherein L is 30mm,
W is 10mm, L1For 10mm, L2For 20mm, W1For 4mm, W2For 7mm.When using traditional magnet arrangement, magnetic flux face area value etc.
In the product of the length L and width W of magnetic sheet 2, i.e. L*W=30mm*10mm=300mm2.(magnetic flux is close by traditional magnet trade mark 38SH
Degree B is 1.23T), then its magnetic flux is 1.23T*300mm2, i.e. 369T*mm2。
And magnetic sheet structure of the invention is used, magnetic flux face area value S=30mm*10mm-3mm*10mm*3/2=
255mm2.The magnet trade mark 48SH (magnetic flux density B is 1.42T) of magnetic sheet 2, then its magnetic flux is 1.42T*255mm2, i.e. 362T*
mm2, it is preceding substantially suitable using the magnetic flux of low trade mark magnet with cutting, but magnet dosage reduces 15% or so.
Therefore, the apex angle cutting of magnetic sheet 2 is gone a part of ferromagnetic material to form missing face 22 by the present invention, is lacked by control
The quantity in face 22 guarantees that magnetic sheet 2 at least there is an apex angle to agree with completely with locating slot 12, be conducive to magnetic sheet 2 in the preferred case
It is fastened in locating slot 12.And it is greater than by five times of length of the side length adjacent with missing face 22 formed after control cutting
The length of the correspondence side length of the cuboid ontology 21 of magnetic sheet 2, the magnetic sheet 2 after guaranteeing cutting are assembled to the fluency of 1 process of rotor
And operability.Using magnetic sheet structure of the invention, integrated magnets dosage is greatly decreased, and is protected with the use of high-performance trade mark magnet
It is constant to demonstrate,prove magnetic flux, to optimize motor performance.
In addition, rotor 1 of the invention further includes end plate (not shown), iron core 11 is covered on along its Pivot axle
Both ends；End plate is equipped with protrusion towards the surface of iron core 11, and the correspondence of missing face 22 of the protrusion and magnetic sheet 2 on the end plate is agreed with,
To fill up the notch lacked between face 22 and locating slot 12, be conducive to eliminate air gap, to eliminate in 1 rotary course of rotor
Noise.
In presently preferred embodiment, a magnetic sheet 2 is equipped in each locating slot 12, which includes edge
Multiple magnetic stripe parts of the direction segmentation of the Pivot axle of iron core 11.Gap is equipped between every two magnetic stripe part, and multiple
Magnetic stripe part is respectively equal along the circumferential width of iron core 11.
Referring to shown in Fig. 9, it is equipped with a magnetic sheet 2 in each locating slot 12, and every magnetic sheet 2 includes along the rotation of iron core 11
The first part 201 of the direction segmentation of mandrel 13 and second part 202.Between being equipped between first part 201 and second part 202
Gap.The structure to form uniform gap is separated using first part 201 and second part 202, can effectively eliminate motor rotation
In the process to the eddy-current loss of magnetic sheet 2.
First part 201 and second part 202 after segmentation can separately be considered as a magnetic sheet structure, and every part can
Multiple missing faces 22 are separately included, such as diagram first part 201 and second part 202 separately include two missing faces 22.Then
The magnetic sheet structure formed after first part 201 and the splicing of 202 gap of second part is respectively provided with missing face 22 in its apex angle.
Further, the width of the first part 201 after segmentation and the width of second part 202 are equal.So that it is guaranteed that two
It is symmetrical between part, promote motor performance.
Referring to Fig.1 shown in 0, the present invention also provides a kind of permanent magnet synchronous motor, including it is above-mentioned include magnetic sheet 2 rotor 1,
And it is sheathed on the stator 3 of 1 periphery of rotor.
In addition, the present invention also provides a kind of compressors comprising above-mentioned permanent magnet synchronous motor.Cause is in addition to rotor 1, permanent magnetism
The other structures component of synchronous motor and compressor is all made of existing structure component, therefore the present invention is no longer to these existing knots
The expansion of structure component illustrates.
To sum up, the apex angle that the present invention will be used for the cuboid magnetic sheet of rotor cuts a part of ferromagnetic material and forms missing face,
By controlling the quantity and size in missing face, ferromagnetic material cost is not only saved, while guaranteeing with the use of high performance magnet
Magnetic flux is constant；In addition, during design of the invention can guarantee that the magnetic sheet after cutting forms missing face is assembled to rotor
Fluency and operability improve motor performance.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of rotor, it is suitable for permanent magnet synchronous motor, which is characterized in that the rotor includes:
Iron core, the iron core offer multiple locating slots along its circumferential direction, and the locating slot has locating slot volume；And
Multiple magnetic sheets are assigned respectively in multiple locating slots, and the magnetic sheet has magnetic sheet volume, and the magnetic sheet volume is less than
The locating slot volume.
2. rotor as described in claim 1, which is characterized in that the magnetic sheet has cuboid ontology, the cuboid ontology
Multiple apex angles are lacked, multiple missing faces are formed.
3. rotor as claimed in claim 2, which is characterized in that the quantity in the missing face is 2 to 8.
4. rotor as claimed in claim 2, which is characterized in that any missing face is plane, in arc surface, cascaded surface
The combination of any one or more.
5. rotor as claimed in claim 2, which is characterized in that five times of length of the side length adjacent with the missing face are greater than institute
State the length of the correspondence side length of cuboid ontology.
6. rotor as described in claim 1, which is characterized in that be equipped with a magnetic sheet, the magnetic in each locating slot
Piece includes multiple magnetic stripe parts of the direction segmentation of the Pivot axle along the iron core.
7. rotor as claimed in claim 6, which is characterized in that be equipped with gap between magnetic stripe part described in every two.
8. rotor as claimed in claim 6, which is characterized in that multiple magnetic stripe parts are respectively along the circumferential direction of the iron core
Width is equal.
9. a kind of permanent magnet synchronous motor, which is characterized in that including the rotor as described in claim 1-8 any one.
10. a kind of compressor, which is characterized in that including permanent magnet synchronous motor as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049923.4A CN110061577B (en) | 2018-01-18 | 2018-01-18 | Rotor, permanent magnet synchronous motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049923.4A CN110061577B (en) | 2018-01-18 | 2018-01-18 | Rotor, permanent magnet synchronous motor and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110061577A true CN110061577A (en) | 2019-07-26 |
| CN110061577B CN110061577B (en) | 2021-06-08 |
Family
ID=67315698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810049923.4A Active CN110061577B (en) | 2018-01-18 | 2018-01-18 | Rotor, permanent magnet synchronous motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110061577B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009038930A (en) * | 2007-08-03 | 2009-02-19 | Daikin Ind Ltd | Rotor and embedded magnet type motor |
| JP2010088270A (en) * | 2008-10-02 | 2010-04-15 | Mitsubishi Electric Corp | Rotating electrical machine |
| JP2010206944A (en) * | 2009-03-03 | 2010-09-16 | Honda Motor Co Ltd | Permanent magnet motor |
| JP2010206882A (en) * | 2009-03-02 | 2010-09-16 | Mitsubishi Electric Corp | Motor, compressor, air conditioner and vacuum cleaner |
| CN102064622A (en) * | 2009-10-01 | 2011-05-18 | 信越化学工业株式会社 | Rotor for permanent magnet rotary machine |
| CN102474143A (en) * | 2009-08-12 | 2012-05-23 | 日立汽车系统株式会社 | Dynamo-electric machine for use in vehicles |
| EP2897265A1 (en) * | 2014-01-15 | 2015-07-22 | Siemens Aktiengesellschaft | Rotor with a assembly of permanent magnets arranged in axial direction and electric machine comprising such a rotor |
| CN205610441U (en) * | 2016-05-04 | 2016-09-28 | 上海日立电器有限公司 | Permanent magnet synchronous motor |
| CN205864083U (en) * | 2016-05-27 | 2017-01-04 | 广东美芝制冷设备有限公司 | The permanent magnet of motor and there is its motor, compressor |
-
2018
- 2018-01-18 CN CN201810049923.4A patent/CN110061577B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009038930A (en) * | 2007-08-03 | 2009-02-19 | Daikin Ind Ltd | Rotor and embedded magnet type motor |
| JP2010088270A (en) * | 2008-10-02 | 2010-04-15 | Mitsubishi Electric Corp | Rotating electrical machine |
| JP2010206882A (en) * | 2009-03-02 | 2010-09-16 | Mitsubishi Electric Corp | Motor, compressor, air conditioner and vacuum cleaner |
| JP2010206944A (en) * | 2009-03-03 | 2010-09-16 | Honda Motor Co Ltd | Permanent magnet motor |
| CN102474143A (en) * | 2009-08-12 | 2012-05-23 | 日立汽车系统株式会社 | Dynamo-electric machine for use in vehicles |
| CN102064622A (en) * | 2009-10-01 | 2011-05-18 | 信越化学工业株式会社 | Rotor for permanent magnet rotary machine |
| EP2897265A1 (en) * | 2014-01-15 | 2015-07-22 | Siemens Aktiengesellschaft | Rotor with a assembly of permanent magnets arranged in axial direction and electric machine comprising such a rotor |
| CN205610441U (en) * | 2016-05-04 | 2016-09-28 | 上海日立电器有限公司 | Permanent magnet synchronous motor |
| CN205864083U (en) * | 2016-05-27 | 2017-01-04 | 广东美芝制冷设备有限公司 | The permanent magnet of motor and there is its motor, compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110061577B (en) | 2021-06-08 |
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