CN110867987A - Permanent magnet motor - Google Patents
Permanent magnet motor Download PDFInfo
- Publication number
- CN110867987A CN110867987A CN201810980283.9A CN201810980283A CN110867987A CN 110867987 A CN110867987 A CN 110867987A CN 201810980283 A CN201810980283 A CN 201810980283A CN 110867987 A CN110867987 A CN 110867987A
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- China
- Prior art keywords
- permanent magnet
- stator
- axial direction
- permanent
- main body
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Classifications
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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
- H02K1/2713—Inner rotors the magnetisation axis of the magnets being axial, e.g. claw-pole type
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- 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
- H02K1/2746—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 arranged with the same polarity, e.g. consequent pole type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the field of electrical equipment, and discloses a permanent magnet motor, which comprises: the rotor comprises a permanent magnet retainer and permanent magnets arranged on the permanent magnet retainer, the permanent magnet retainer comprises a main body, the permanent magnets comprise first permanent magnets and second permanent magnets, the first permanent magnets are arranged along the circumferential direction of the main body, and at least one second permanent magnet is arranged on at least one side of at least one first permanent magnet along the axial direction and corresponds to the first permanent magnets one by one along the axial direction; the stator core comprises a stator yoke part and a plurality of stator teeth, the plurality of stator teeth are arranged at intervals along the circumferential direction of the annular stator yoke part, and at least one stator tooth comprises a first surface corresponding to the first permanent magnet at intervals and a second surface corresponding to the second permanent magnet at intervals; the polarities of the first permanent magnet and the second permanent magnet which correspond to each other along the axial direction are the same. The permanent magnet motor of the invention can increase the magnetic flux entering the stator tooth part from the axial direction, thereby increasing the total magnetic flux.
Description
Technical Field
The present invention relates to electrical equipment, in particular to permanent magnet motors.
Background
In a conventional radial permanent magnet machine, the magnetic flux of the permanent magnets of the rotor enters the stator teeth substantially in the radial direction of the machine. In order to increase the magnetic flux entering the stator core and consequently increase the winding flux linkage, it is usually necessary to design a very complicated rotor structure to achieve the magnetic convergence of the permanent magnets, or to increase the surface of the rotor radially opposite to the stator. To increase the surface of the rotor radially opposite the stator, this can be achieved by: 1. increasing the axial length of the motor, 2, increasing the outer diameter of the rotor in the inner rotor motor; 3. in an outer rotor motor, the outer diameter of a stator is increased. In any case, the size of the motor is increased and the structure is complicated.
Disclosure of Invention
The invention aims to solve the problem that the magnetic flux of a permanent magnet entering a stator core cannot be effectively improved in the prior art, and provides a permanent magnet motor which can improve the magnetic flux of the permanent magnet entering the stator core.
In order to achieve the above object, an aspect of the present invention provides a permanent magnet motor, wherein the permanent magnet motor includes:
the permanent magnet retainer comprises a main body extending along the axial direction of the rotor, the permanent magnets comprise a plurality of first permanent magnets and at least one second permanent magnet, the plurality of first permanent magnets are arranged along the circumferential direction of the main body, and the at least one second permanent magnet is arranged on at least one side of the at least one first permanent magnet along the axial direction and corresponds to the at least one first permanent magnet along the axial direction one by one;
a stator core including a stator yoke and a plurality of stator teeth disposed at intervals in a circumferential direction of the annular stator yoke, at least one of the stator teeth including a first surface capable of corresponding to the first permanent magnet at intervals and a second surface capable of corresponding to the second permanent magnet at intervals;
the polarities of the first permanent magnet and the second permanent magnet corresponding to the axial direction are the same.
Preferably, the stator yoke portion comprises a plurality of stator yoke portion punching sheets which are stacked along the central line direction of the stator yoke portion, the stator tooth portion comprises a plurality of stacked stator tooth portion punching sheets, and the stacking direction of the stator tooth portion punching sheets is set to enable the thickness direction of the stator tooth portion punching sheets to be perpendicular to the axial direction.
Preferably, the stator tooth punching sheet is provided with a notch matched with the stator yoke, and the notch is arranged on the surface of the stator tooth punching sheet opposite to the first surface.
Preferably, the rotor includes a plurality of the second permanent magnets arranged at intervals in a circumferential direction of the main body.
Preferably, each of the first permanent magnets corresponds to the second permanent magnet in the axial direction.
Preferably, the first permanent magnet and/or the second permanent magnet are blocks with sector ring-shaped cross sections, wherein: the first permanent magnets are located on the same circumference, and/or the second permanent magnets located on the same side of the first permanent magnets are located on the same circumference.
Preferably, each of the first permanent magnets corresponds to the second permanent magnet on both sides in the axial direction.
Preferably, the second surface overlaps with a projection of the second permanent magnet in the axial direction.
Preferably, the first permanent magnet is disposed in an annular space surrounded by the stator core, or the first permanent magnet is disposed outside the stator core.
Preferably, the permanent magnet holder includes a first flange and a second flange located on both sides of the main body in the axial direction, the first flange and the second flange are in a circular plate shape and coaxially disposed with the main body, and the second permanent magnet is disposed on a surface of the first flange and/or the second flange facing the main body.
Through the technical scheme, the magnetic flux of the permanent magnet is divided into two parts, on one hand, the magnetic flux of the first permanent magnet can enter the stator tooth part from the radial direction of the permanent magnet motor, and on the other hand, the magnetic flux of the second permanent magnet can enter the stator tooth part from the axial direction of the permanent magnet motor. The second permanent magnet can increase the magnetic flux entering the stator tooth part from the axial direction, so that the total amount of the magnetic flux entering the stator tooth part of the permanent magnet can be increased under the condition of not needing to more complexly adjusting the size and the structure of the permanent magnet motor.
Drawings
FIG. 1 is a perspective view of one embodiment of a permanent magnet electric machine of the present invention;
fig. 2 is an exploded perspective view of a main body portion of the permanent magnet motor of fig. 1;
figure 3 is a cross-sectional view of the permanent magnet machine of figure 1;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 7 is a view of a stator yoke lamination of fig. 1;
FIG. 8 is a view of the stator tooth laminations in FIG. 2;
figure 9 is a perspective view of another embodiment of a permanent magnet electric machine of the present invention;
figure 10 is an exploded perspective view of the main body portion of the permanent magnet motor of figure 9;
FIG. 11 is a top view of FIG. 9;
FIG. 12 is a front view of FIG. 9;
FIG. 13 is a cross-sectional view taken along line C-C of FIG. 11;
FIG. 14 is a cross-sectional view taken along line D-D of FIG. 12;
fig. 15 is a view of the stator yoke laminations in fig. 9;
fig. 16 is a view of the stator tooth laminations in fig. 9.
Description of the reference numerals
100-rotor, 110-permanent magnet holder, 111-main body, 112-first flange, 113-second flange, 120-first permanent magnet, 130-second permanent magnet, 200-stator core, 210-stator yoke, 211-stator yoke punching sheet, 220-stator tooth, 221-first surface, 222-second surface, 223-stator tooth punching sheet and 224-notch.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. In the present invention, "a plurality" means two or more (including two).
The present invention provides a permanent magnet motor, wherein the permanent magnet motor comprises: rotor 100 and stator core 200.
The rotor 100 comprises a permanent magnet holder 110 and permanent magnets mounted on the permanent magnet holder 110, the permanent magnet holder 110 comprises a main body 111 extending along an axial direction of the rotor 100, the permanent magnets comprise a plurality of first permanent magnets 120 and at least one second permanent magnet 130, the plurality of first permanent magnets 120 are arranged along a circumferential direction of the main body 111, and the at least one second permanent magnet 130 is arranged on at least one side of the at least one first permanent magnet 120 along the axial direction and corresponds to the at least one first permanent magnet 120 one to one along the axial direction; the stator core 200 includes a stator yoke 210 and a plurality of stator teeth 220, the plurality of stator teeth 220 being spaced apart from each other in a circumferential direction of the ring-shaped stator yoke 210, at least one of the stator teeth 220 including a first surface 221 capable of corresponding to the first permanent magnet 120 at a spacing and a second surface 222 capable of corresponding to the second permanent magnet 130 at a spacing; the polarities of the first permanent magnet 120 and the second permanent magnet 130 corresponding in the axial direction are the same.
The magnetic flux of the permanent magnet of the present invention is divided into two parts, and on one hand, the magnetic flux of the first permanent magnet 120 can enter the stator teeth 220 from the radial direction of the permanent magnet motor through the first surface 221, and on the other hand, the magnetic flux of the second permanent magnet 130 can enter the stator teeth 220 from the axial direction of the permanent magnet motor through the second surface 222. The second permanent magnet 130 increases the magnetic flux entering the stator teeth 220 from the axial direction, so that the total amount of the magnetic flux entering the stator teeth 220 of the permanent magnet can be increased without more complicated adjustment of the size and structure of the permanent magnet motor.
The stator core 200 may be formed by forming the stator yoke portion 210 and the stator teeth 220 in various suitable manners, for example, by laminating a plurality of punching sheets having a first portion corresponding to the stator yoke portion 210 and a second portion corresponding to the stator teeth 220. For convenience of manufacturing and simplification of an assembly process, preferably, as shown in fig. 2 to 8 and 10 to 16, the stator yoke 210 includes a plurality of stator yoke laminations 211 laminated in a center line direction of the stator yoke 210, the stator teeth 220 includes a plurality of laminated stator tooth laminations 223, and a laminating direction of the plurality of stator tooth laminations 223 is set such that the second surfaces 222 of the stator teeth 220 are perpendicular to the axial direction. Thus, the stator yoke 210 and the stator teeth 220 may be formed by laminating the stator yoke lamination 211 and the stator teeth lamination 223, respectively, and the stator yoke 210 and the stator teeth 220 may be assembled later to obtain the stator core 200.
In addition, the laminating direction of the stator tooth punching sheets 223 is set to make the thickness direction of the stator tooth punching sheets 223 perpendicular to the axial direction, so that magnetic flux can enter the stator tooth 220 from the side surface of each stator tooth punching sheet 223, and the effect of the magnetic flux entering the stator tooth 220 cannot be influenced because the entering direction of the magnetic flux is consistent with the laminating direction of the stator tooth punching sheets 223. In this case, the first surface 221 is an inner surface of the stator teeth 220 along a ring shape surrounded by the stator yoke 210, and the second surface 222 is an end surface of the stator teeth 220 in the axial direction. In addition, this arrangement can increase the magnetic flux entering the stator teeth 220, specifically, so that the first surface 221 and the first permanent magnet 120 correspond in parallel, i.e., the first surface 221 surrounds the first permanent magnet 120; also, the second surface 222 and the second permanent magnet 130 may be made to correspond in parallel, i.e., the second surface 222 is disposed perpendicular to the axial direction.
The stator tooth punching sheets 223 can be divided into multiple sets of stacked sheets to form a plurality of stator teeth 220 arranged along the circumferential direction of the stator yoke portion 210 at intervals. To facilitate the thickness direction of the stator tooth punching pieces 223 to be perpendicular to the axial direction, the stator tooth punching pieces 223 may be laminated in the circumferential direction of the stator yoke portion 210.
To facilitate assembly of the stator yoke 210 and the stator teeth 220, the stator teeth punching pieces 223 have notches 224 for mating with the stator yoke 210, as shown in fig. 8 and 16. As shown in fig. 7 and 15, the stator yoke punching sheet 211 may have a circular ring shape, so that the ring-shaped stator yoke 210 is formed by lamination. The assembly of stator yoke 210 and stator teeth 220 is completed by fitting ring-shaped stator yoke 210 at notches 224. The notches 224 may be disposed on a surface of the stator tooth punching sheet 223 opposite to the first surface 221, so as not to interfere with magnetic fluxes of the first and second permanent magnets 120 and 130 entering the stator teeth 220.
In addition, in order to increase the axial magnetic flux of the permanent magnet into the stator teeth 220, it is preferable that the rotor 100 includes a plurality of the second permanent magnets 130 arranged at intervals in the circumferential direction of the main body 111. In order to facilitate the arrangement and maintain the smoothness of the permanent magnet motor, the plurality of second permanent magnets 130 and the plurality of first permanent magnets 120 may be uniformly distributed along the circumferential direction of the main body 111.
The first permanent magnets 120 and the second permanent magnets 130 may be in one-to-one correspondence, that is, each first permanent magnet 120 corresponds to the second permanent magnet 130 in the axial direction. In this embodiment, the circumferentially adjacent first permanent magnets 120 are of opposite polarity and the circumferentially adjacent second permanent magnets 130 are of opposite polarity. Alternatively, the first permanent magnets 120 and the second permanent magnets 130 may not have a one-to-one correspondence, for example, one first permanent magnet 120 may correspond to one second permanent magnet 130 spaced every week, in which case the polarities of the circumferentially adjacent first permanent magnets 120 are opposite, but the polarities of the circumferentially adjacent second permanent magnets 130 are the same. Of course, the second permanent magnets 130 may be arranged in any manner to correspond to different first permanent magnets 120 and to set their own polarities according to the polarities of the corresponding first permanent magnets 120.
In addition, preferably, the first permanent magnet 120 and/or the second permanent magnet 130 are blocks with a cross section in a shape of a sector ring, wherein: the first permanent magnets 120 are located on the same circumference, and/or the second permanent magnets 130 located on the same side of the first permanent magnets 120 are located on the same circumference. Thereby, the first and second permanent magnets 120 and 130 can surround the body 111 as much as possible, thereby increasing the corresponding area to the stator teeth 220 and increasing the magnetic flux entering the stator teeth 220. Specifically, as shown in fig. 2, 5, 9, and 14, each of the first permanent magnet 120 and the second permanent magnet 130 is a block body having a cross section in a shape of a sector ring, the first permanent magnet 120 extends along most of the main body 111 to cover an outer surface (an inner rotor motor shown in fig. 2) or an inner surface (an outer rotor motor shown in fig. 9) of the main body 111 as much as possible, and the second permanent magnet 130 is located at both ends of the main body 111 to reduce a space occupied in an axial direction of the main body 111 while covering both ends of the main body 111 as much as possible in a surrounding manner, thereby taking into account both radial magnetic flux from the first magnet 120 and axial magnetic flux from the second magnet 130.
In addition, to further increase the magnetic flux, as shown in fig. 1 and 9, each of the first permanent magnets 120 corresponds to the second permanent magnet 130 on both sides in the axial direction. Thereby, the magnetic flux of the second permanent magnet 130 can enter from both axial ends of the stator teeth 220.
In order to facilitate that the magnetic flux enters the stator teeth 220 at the shortest distance in the axial direction of the permanent magnet motor, preferably, the second surface 222 overlaps the projection of the second permanent magnet 130 in the axial direction. For example, in the embodiment shown in fig. 1 to 8, as shown in fig. 6, a part of the stator tooth 220 protrudes between the second permanent magnets 130 on both sides in the axial direction, so that the top and bottom surfaces (i.e., the second surfaces 222) of the stator tooth 220 and the projection of the second permanent magnets 130 in the axial direction have an overlapping portion. Likewise, as shown in fig. 13, the top and bottom surfaces (i.e., the second surfaces 222) of the stator teeth 220 also have portions that overlap with the projection of the second permanent magnets 130 in the axial direction. Here, the second surface 222 overlapping the projection of the second permanent magnet 130 in the axial direction should be understood as having the projection of the second surface 222 of the stator tooth 220 overlapping the second permanent magnet 130 in the axial direction at the moment when the stator tooth 220 cuts the magnetic lines of force of the second permanent magnet 130 during the rotation of the rotor 100.
Here, the second permanent magnets 130 may be located outside the stator teeth 220 in the axial direction as shown in fig. 3 and 13, but may also be located inside the stator teeth 220 in the axial direction as long as they correspond to the second surfaces 222 of the stator teeth 220 at intervals to form an axial air gap.
In order to facilitate the arrangement of the first and second permanent magnets 120 and 130, the permanent magnet holder 110 includes first and second flanges 112 and 113 located on both sides of the main body 111 in the axial direction, the first and second flanges 112 and 113 have a circular plate shape and are coaxially arranged with the main body 111, the first permanent magnet 120 is disposed on an inner surface (inner rotor motor) or an outer surface (outer rotor motor) of the cylindrical main body 111, and the second permanent magnet 130 is disposed on a surface of the first and/or second flange 112 and 113 facing the main body 111. That is, when the second permanent magnet 130 is provided only on one side in the axial direction of the stator tooth portion 220, the second permanent magnet 130 may be provided on the surface of the first flange 112 or the second flange 113 facing the main body 111; when the second permanent magnets 130 are disposed on both axial sides of the stator tooth portion 220, the second permanent magnets 130 may be disposed on surfaces of the first flange 112 and the second flange 113 facing the main body 111, respectively.
The permanent magnet motor of the present invention may be an inner rotor motor, for example, in the embodiment shown in fig. 1 to 8, the first permanent magnet 120 is disposed in an annular space surrounded by the stator core 200. The stator yoke 210 is located radially outside the stator teeth 220, and the first permanent magnet 120 is located radially inside the stator teeth 220 with a radial gap from the stator teeth 220. In an embodiment of the inner rotor motor, the main body 111 may have a cylindrical shape, and the first permanent magnet 120 is disposed around an outer circumferential surface of the main body 111.
Alternatively, the permanent magnet motor of the present invention may be an outer rotor motor, for example, in the embodiment shown in fig. 9 to 16, the first permanent magnet 120 is disposed outside the stator core 200. The stator yoke 210 is located radially inside the stator teeth 220, and the first permanent magnet 120 is located radially outside the stator teeth 220 with a radial gap from the stator. Wherein the main body 111 has a hollow cylindrical structure, the first flange 112, the second flange 113 and the main body 111 each have an opening communicating with each other, and the first permanent magnet 120 is disposed around an inner circumferential surface of the main body 111. To facilitate positioning of the first permanent magnet 120, a first positioning groove is provided on an inner wall of the main body 111.
In addition, whether the inner rotor motor or the outer rotor motor, in order to facilitate positioning of the second permanent magnet 130, a second positioning groove may be provided on the first flange 112 and/or the second flange 113.
The first permanent magnet 120 and the second permanent magnet 130 may be mounted to the permanent magnet holder 110 by any suitable means, such as by injection molding.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (10)
1. A permanent magnet electric machine, comprising:
the rotor (100) comprises a permanent magnet holder (110) and permanent magnets mounted on the permanent magnet holder (110), the permanent magnet holder (110) comprises a main body (111) extending along the axial direction of the rotor (100), the permanent magnets comprise a plurality of first permanent magnets (120) and at least one second permanent magnet (130), the plurality of first permanent magnets (120) are arranged along the circumferential direction of the main body (111), and the at least one second permanent magnet (130) is arranged on at least one side of the at least one first permanent magnet (120) along the axial direction and corresponds to the at least one first permanent magnet (120) one to one along the axial direction;
a stator core (200), the stator core (200) comprising a stator yoke portion (210) and a plurality of stator teeth (220), the plurality of stator teeth (220) being arranged at intervals along a circumferential direction of the ring-shaped stator yoke portion (210), at least one of the stator teeth (220) comprising a first surface (221) corresponding to the first permanent magnet (120) at intervals and a second surface (222) corresponding to the second permanent magnet (130) at intervals;
wherein the polarities of the first permanent magnet (120) and the second permanent magnet (130) corresponding in the axial direction are the same.
2. The permanent magnet motor according to claim 1, wherein the stator yoke portion (210) comprises a plurality of stator yoke lamination sheets (211) laminated along a center line direction of the stator yoke portion (210), the stator teeth (220) comprise a plurality of laminated stator teeth lamination sheets (223), and the lamination direction of the plurality of stator teeth lamination sheets (223) is set such that a thickness direction of the stator teeth lamination sheets (223) is perpendicular to the axial direction.
3. The permanent magnet electric machine according to claim 2, characterized in that the stator tooth punches (223) have notches (224) for cooperating with the stator yoke (210), the notches (224) being provided on a surface of the stator tooth punches (223) opposite to the first surface (221).
4. The permanent magnet electric machine according to claim 1, characterized in that the rotor (100) comprises a plurality of the second permanent magnets (130) arranged at intervals along the circumference of the main body (111).
5. The permanent magnet machine according to claim 4, characterized in that each first permanent magnet (120) corresponds to the second permanent magnet (130) in the axial direction.
6. The permanent magnet electrical machine according to claim 4, characterized in that the first permanent magnet (120) and/or the second permanent magnet (130) are blocks with a sector ring shape in cross section, wherein: the first permanent magnets (120) are located on the same circumference, and/or the second permanent magnets (130) located on the same side of the first permanent magnets (120) are located on the same circumference.
7. The permanent magnet machine according to claim 1, characterized in that each first permanent magnet (120) corresponds to the second permanent magnet (130) on both sides in the axial direction.
8. The permanent magnet electrical machine according to any of claims 1-7, characterized in that the second surface (222) overlaps the projection of the second permanent magnet (130) in the axial direction.
9. The permanent magnet electrical machine according to any of claims 1-7, characterized in that the first permanent magnet (120) is arranged in the annular space enclosed by the stator core (200), or that the first permanent magnet (120) is arranged outside the stator core (200).
10. The permanent magnet motor according to any of claims 1-7, characterized in that the permanent magnet holder (110) comprises a first flange (112) and a second flange (113) on both sides of the main body (111) in the axial direction, the first flange (112) and the second flange (113) being circular plate-shaped arranged coaxially with the main body (111), and the second permanent magnet (130) being arranged on the surface of the first flange (112) and/or the second flange (113) facing the main body (111).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980283.9A CN110867987A (en) | 2018-08-27 | 2018-08-27 | Permanent magnet motor |
| PCT/CN2019/091263 WO2020042725A1 (en) | 2018-08-27 | 2019-06-14 | Permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980283.9A CN110867987A (en) | 2018-08-27 | 2018-08-27 | Permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110867987A true CN110867987A (en) | 2020-03-06 |
Family
ID=69651728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810980283.9A Pending CN110867987A (en) | 2018-08-27 | 2018-08-27 | Permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110867987A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011078202A (en) * | 2009-09-30 | 2011-04-14 | Daihatsu Motor Co Ltd | Axial gap motor |
| JP2014036519A (en) * | 2012-08-09 | 2014-02-24 | Hitachi Industrial Equipment Systems Co Ltd | Axial gap type motor |
| JP2014230390A (en) * | 2013-05-22 | 2014-12-08 | 成田 憲治 | Permanent magnet type synchronous motor |
| EP2988402A1 (en) * | 2014-06-19 | 2016-02-24 | Nogami, Shinobu | Stepping motor |
| CN106059236A (en) * | 2015-04-17 | 2016-10-26 | 信越化学工业株式会社 | Axial gap type rotary machine |
| CN106357024A (en) * | 2015-07-15 | 2017-01-25 | 菲艾姆股份有限公司 | Rotor and electrical machine |
| CN106712329A (en) * | 2016-12-15 | 2017-05-24 | 广东威灵电机制造有限公司 | Motor and water pump provided with same |
| CN107026547A (en) * | 2017-05-02 | 2017-08-08 | 华中科技大学 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
| US20180219441A1 (en) * | 2017-01-31 | 2018-08-02 | Regal Beloit Australia, PTY., Ltd. | Modular rotors for axial flux electric machines |
-
2018
- 2018-08-27 CN CN201810980283.9A patent/CN110867987A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011078202A (en) * | 2009-09-30 | 2011-04-14 | Daihatsu Motor Co Ltd | Axial gap motor |
| JP2014036519A (en) * | 2012-08-09 | 2014-02-24 | Hitachi Industrial Equipment Systems Co Ltd | Axial gap type motor |
| JP2014230390A (en) * | 2013-05-22 | 2014-12-08 | 成田 憲治 | Permanent magnet type synchronous motor |
| EP2988402A1 (en) * | 2014-06-19 | 2016-02-24 | Nogami, Shinobu | Stepping motor |
| CN106059236A (en) * | 2015-04-17 | 2016-10-26 | 信越化学工业株式会社 | Axial gap type rotary machine |
| CN106357024A (en) * | 2015-07-15 | 2017-01-25 | 菲艾姆股份有限公司 | Rotor and electrical machine |
| CN106712329A (en) * | 2016-12-15 | 2017-05-24 | 广东威灵电机制造有限公司 | Motor and water pump provided with same |
| US20180219441A1 (en) * | 2017-01-31 | 2018-08-02 | Regal Beloit Australia, PTY., Ltd. | Modular rotors for axial flux electric machines |
| CN107026547A (en) * | 2017-05-02 | 2017-08-08 | 华中科技大学 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
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Application publication date: 20200306 |