CN105490414A - Permanent magnet rotor and permanent magnet motor - Google Patents
Permanent magnet rotor and permanent magnet motor Download PDFInfo
- Publication number
- CN105490414A CN105490414A CN201511009731.3A CN201511009731A CN105490414A CN 105490414 A CN105490414 A CN 105490414A CN 201511009731 A CN201511009731 A CN 201511009731A CN 105490414 A CN105490414 A CN 105490414A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- mounting groove
- rotor
- distance
- bottom land
- 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
- 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
-
- 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
Abstract
The invention discloses a permanent magnet rotor and a permanent magnet motor. The permanent magnet rotor comprises a rotor core and a rotating shaft, wherein the rotating shaft is located at the middle part of the rotor core; a plurality of mounting grooves which are distributed along the radial direction of the rotor core are formed in the rotor core; a permanent magnet is arranged in each mounting groove; and an air gap is formed between each permanent magnet and the bottom, close to the rotating shaft, of the mounting groove. According to the permanent magnet rotor and the permanent magnet motor disclosed by the invention, the problems that the performance of the motor is reduced, the permanent magnets are demagnetized and the motor cannot run due to the fact that the parts, closet to the rotating shaft, of the permanent magnets cannot be magnetized to reach the saturated state in the prior art are effectively solved.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of p-m rotor and magneto.
Background technology
Magneto of the prior art (tangential magnetised permanent magnets structure) is owing to having " poly-magnetic " effect, higher air gap flux density can be produced, make motor have larger torque/current ratio and torque/volume ratio, magneto is applied to the occasions such as servo system, electric traction, office automation, household electrical appliance more and more.
But the magneto of prior art (tangential magnetised permanent magnets structure) due to rotor number of poles more, external magnetic field is applied on rotor, when rotor permanent magnet is magnetized, magnetic field of magnetizing is difficult to enter the part of rotor near rotating shaft, permanent magnet cannot to magnetize the state of reaching capacity near the part of rotating shaft, therefore easily causes occurring that motor performance declines, problem that permanent magnet loss of excitation and motor cannot operate.
Summary of the invention
A kind of p-m rotor and magneto are provided in the embodiment of the present invention, to solve in prior art because permanent magnet cannot to magnetize the state of reaching capacity near the part of rotating shaft, cause occurring that motor performance declines, problem that permanent magnet loss of excitation and motor cannot operate.
For solving the problems of the technologies described above, the invention provides a kind of p-m rotor, p-m rotor comprises rotor core and is positioned at the rotating shaft in the middle part of rotor core, rotor core is provided with along the radially-arranged multiple mounting groove of rotor core, be provided with permanent magnet in mounting groove, permanent magnet and mounting groove have air-gap between the bottom land of rotating shaft.
Further, permanent magnet and the mounting groove distance between the bottom land of rotating shaft is the first distance, and the interval magnetic distance between adjacent two mounting grooves is second distance, and the ratio between the first distance and second distance is greater than or equal to 0.5.
Further, the ratio between the first distance and second distance is less than or equal to 1.1.
Further, mounting groove is formed with first step and second step at bottom land place, first step and second step lay respectively at the both sides of mounting groove, permanent magnet is directly supported on first step and second step, form air-gap between first step and second step, the distance between first step and second step is greater than 1/2nd of permanent magnet thickness.
Further, the part of bottom land between first step and second step is arc surface, and arc surface is recessed into towards rotating shaft.
Further, mounting groove is formed with the 3rd step at bottom land place, and the 3rd step is positioned at the middle part of mounting groove, and permanent magnet is directly supported on the 3rd step, 3rd forms air-gap between step and the both sides of mounting groove, and the width of the 3rd step is less than 1/2nd of the thickness of permanent magnet.
Further, the 3rd step has two arcwall faces and connects the plane of two arcwall faces, and two arcwall faces are respectively towards the both sides of mounting groove, and plane and the 3rd step are supported, and the width of plane is less than 0.25 times of permanent magnet thickness.
Further, the width of the 3rd step is reduced gradually by one end of one end to plane of being positioned at bottom land, and the width that the 3rd step is positioned at one end of bottom land is less than 1/2nd of permanent magnet thickness.
Further, mounting groove is formed with two the 4th steps at bottom land place, two the 4th steps lay respectively at the both sides of mounting groove, distance between permanent magnet and the 4th step is the 4th distance, the ratio of the interval magnetic distance between the 4th distance and two adjacent permanent magnets is greater than or equal to 0.5, and the distance of mounting groove between two the 4th steps is greater than 1/2nd of permanent magnet thickness.
Further, mounting groove is provided with fixing step in the 4th position between step and permanent magnet, and setting supported by permanent magnet and fixing step.
Further, permanent magnet is even number, and the quantity of permanent magnet is greater than or equal to 4.
Further, the identical polar of two adjacent permanent magnets is oppositely arranged.
According to another aspect of the present invention, provide a kind of magneto, comprise p-m rotor, p-m rotor is above-mentioned p-m rotor.
Apply technical scheme of the present invention, in p-m rotor in the present invention, permanent magnet is formed with air-gap near one end of rotating shaft and mounting groove between the bottom land of rotating shaft, the more difficult rotor core part by close rotating shaft of magnetic flux i.e. silicon steel sheet are closed, which reduce the leakage field of permanent magnet, make the magnetic of permanent magnet inside close saturated, avoid the motor performance caused because permanent magnet is unsaturated and decline, it also avoid permanent magnet loss of excitation and occur that the problem that motor cannot operate occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the p-m rotor of first embodiment of the invention;
Fig. 2 is the structural representation of the p-m rotor of second embodiment of the invention;
Fig. 3 is the structural representation of the p-m rotor of third embodiment of the invention;
Fig. 4 is the structural representation of the p-m rotor of fourth embodiment of the invention;
Fig. 5 is the structural representation of the p-m rotor of fifth embodiment of the invention;
Fig. 6 is the structural representation of the p-m rotor of sixth embodiment of the invention;
Fig. 7 is the structural representation of the p-m rotor of seventh embodiment of the invention;
Fig. 8 is the structural representation of the p-m rotor of eighth embodiment of the invention;
Fig. 9 is the structural representation of the p-m rotor of ninth embodiment of the invention;
Figure 10 is B/A ratio and the magnetic linkage graph of a relation of the p-m rotor of first embodiment of the invention.
Description of reference numerals:
10, rotor core; 20, rotating shaft; 30, mounting groove; 40, permanent magnet; 50, air-gap; 31, first step; 32, second step; 33, the 3rd step; 34, the 4th step; 35, fixing step; 331, arcwall face; 332, plane.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Shown in Figure 1, according to the first embodiment of the present invention, provide p-m rotor, p-m rotor comprises rotor core 10 and is positioned at the rotating shaft 20 in the middle part of rotor core 10, rotor core 10 is provided with along the radially-arranged multiple mounting groove 30 of rotor core 10, be provided with permanent magnet 40 in mounting groove 30, permanent magnet 40 and mounting groove 30 have air-gap 50 between the bottom land of rotating shaft 20.
In existing tangential permanent magnet synchronous machine, general permanent magnet directly contacts with between permanent magnet trough inside rotor, external magnetic field is applied on rotor, when rotor permanent magnet is magnetized, magnetic field of magnetizing is difficult to enter the part of rotor near rotating shaft, permanent magnet cannot magnetize near the part of rotating shaft and reach capacity, find after deliberation, epitrochanterian magnetic flux is applied to by external magnetic field, a part through permanent magnet N pole-extremely closed near the silicon steel sheet-permanent magnet S of rotating shaft, belong to external magnetic field not to the leakage field that permanent magnet magnetizes, make permanent magnet inner magnet close unsaturated, in p-m rotor for this reason in the present invention, permanent magnet is formed with air-gap near one end of rotating shaft and mounting groove between the bottom land of rotating shaft, the more difficult rotor core part by close rotating shaft of magnetic flux i.e. silicon steel sheet are closed, which reduce the leakage field of permanent magnet, make the magnetic of permanent magnet inside close saturated, avoid the motor performance caused because permanent magnet is unsaturated to decline, it also avoid permanent magnet loss of excitation and occur that the problem that motor cannot operate occurs.
In the present embodiment, permanent magnet 40 is even number, and the quantity of permanent magnet 40 is greater than or equal to 4.The identical polar of two adjacent permanent magnets 40 is oppositely arranged.
Permanent magnet 40 and mounting groove 30 distance between the bottom land of rotating shaft 20 is the first distance B, and the interval magnetic distance between adjacent two mounting grooves 30 is second distance A, and the ratio between the first distance B and second distance A is greater than or equal to 0.5.The height distance of the first distance i.e. air-gap, the degree of saturation of ratio to permanent magnet of the first distance B and second distance A has a significant impact, larger impact is had at the induction magnetic linkage of stator exactly on motor permanent magnet, by permanent magnet is arranged to B/A >=0.5, motor can be made to obtain larger stator magnetic linkage, improve the efficiency of motor.
As can be seen from the magnetic linkage graph of a relation of Figure 10, the ratio B/A of second distance and the first distance is not more high better, and B/A is being greater than after 1.1, and permanent magnet is saturated, magnetic flux no longer increases, namely stator magnetic flux substantially no longer increases, and even because the size of permanent magnet diminishes, monolithic magnetic flux reduces, stator magnetic flux reduces, for ensureing the utilance of permanent magnet, reducing costs, permanent magnet is arranged to 1.1 >=B/A.Namely the ratio between the first distance B and second distance A is less than or equal to 1.1.
As seen from Figure 1, the cross section of the air-gap of the present embodiment is rectangle, and that is permanent magnet 40 directly defines air-gap near the bottom land of one end of rotating shaft and mounting groove 30.Further, the interval magnetic distance between two adjacent permanent magnets 40 is the distance value between the side of adjacent two mounting grooves 30.
Present invention also offers the second embodiment of p-m rotor, see Fig. 2, in the present embodiment, p-m rotor is substantially identical with the structure of the first embodiment, difference is only the structure of permanent magnet 40, can find out by Fig. 2, the thickness of permanent magnet 40 increases gradually by near the outside of one end of rotating shaft towards p-m rotor, but the proportionate relationship in this structure between the first distance and second distance is basically the same as those in the first embodiment.
Present invention also offers the 3rd embodiment of p-m rotor, see Fig. 3, in the present embodiment, p-m rotor is substantially identical with the structure of the first embodiment, difference is only the structure of mounting groove, in the present embodiment, mounting groove 30 is formed with first step 31 and second step 32 at bottom land place, first step 31 and second step 32 lay respectively at the both sides of mounting groove 30, permanent magnet 40 is directly supported on first step 31 and second step 32, air-gap 50 is formed between first step 31 and second step 32, distance C between first step 31 and second step 32 is greater than 1/2nd of permanent magnet 40 thickness H.Can fixed permanent magnet 40 better by arranging step, can not there is obvious minimizing in p-m rotor the enters bottom permanent magnet magnetic line of force when magnetizing, improve the saturation that magnetizes of permanent magnet.
Present invention also offers the 4th embodiment of p-m rotor, see Fig. 4, in the present embodiment, p-m rotor is substantially identical with the structure of the 3rd embodiment, difference is only the structure of mounting groove, in the present embodiment, mounting groove 30 is formed with first step 31 and second step 32 at bottom land place, and first step 31 and second step 32 lay respectively at the both sides of mounting groove 30, the part of bottom land between first step 31 and second step 32 is arc surface, and arc surface is recessed into towards rotating shaft 20.By bottom land being designed to arc surface recessed inside rotor, magnetic line of force when magnetizing can be reduced and form path by two adjacent interpolars every magnetic potential, increase the magnetic line of force entering permanent magnet, rotor permanent magnet is magnetized more saturated, increase the induction magnetic flux of permanent magnet at stator, improve electric efficiency, ensure the reliability of motor.
Present invention also offers the 5th embodiment of p-m rotor, see Fig. 5, in the present embodiment, p-m rotor is substantially identical with the structure of the 3rd embodiment, difference is only the structure of mounting groove, in the present embodiment, mounting groove 30 is formed with first step 31 and second step 32 at bottom land place, and first step 31 and second step 32 lay respectively at the both sides of mounting groove 30, and first step 31 and second step 32 are arcwall face relative to the part inside mounting groove.
Present invention also offers the 6th embodiment of p-m rotor, see Fig. 6, in the present embodiment, p-m rotor is substantially identical with the structure of the first embodiment, difference is only the structure of mounting groove, in the present embodiment, mounting groove 30 is formed with the 3rd step 33 at bottom land place, 3rd step 33 is positioned at the middle part of mounting groove 30, permanent magnet 40 is directly supported on the 3rd step 33, form air-gap 50 between 3rd step 33 and the both sides of mounting groove 30, the width E of the 3rd step 33 is less than 1/2nd of the thickness H of permanent magnet 40.The cross section of the 3rd step 33 is rectangle, the air-gap region that two cross sections are rectangle is form respectively between 3rd step 33 and the both sides of mounting groove 30, permanent magnet can pass through two two air-gap regions towards rotating shaft one end, more magnetic flux is made to be passed to permanent magnet, 3rd step can ensure that permanent magnet maintains static simultaneously, permanent magnet will be offset because of the power being applied to the generation of epitrochanterian external magnetic field, cause the magnetic flux of permanent magnet to reduce, the undersaturated phenomenon that magnetizes occurs.
Present invention also offers the 7th embodiment of p-m rotor, see Fig. 7, in the present embodiment, p-m rotor is substantially identical with the structure of the 6th embodiment, difference is only the structure of mounting groove, the 3rd step in the present embodiment in the structure of the 3rd step 33 and the 6th embodiment is different, 3rd step 33 has two arcwall faces 331 and connects the plane 332 of two arcwall faces 331, two arcwall faces 331 are respectively towards the both sides of mounting groove 30, plane 332 and the 3rd step 33 are supported, the width F of plane 332 is less than 0.25 times of permanent magnet 40 thickness H, that is F < 0.25H, by plane 332, there is one fixed width, so F is greater than 0.
Further preferably, the width of the 3rd step 33 is reduced gradually by one end of one end to plane 332 of being positioned at bottom land, and the width G that the 3rd step 33 is positioned at one end of bottom land is less than 1/2nd, i.e. G < 0.5H of permanent magnet 40 thickness H.Bottom permanent magnet, two ends void area increases, and more magnetic flux can be made to import permanent magnet into, and permanent magnet is more easily saturated.
Present invention also offers the 8th embodiment of p-m rotor, see Fig. 8, in the present embodiment, p-m rotor is substantially identical with the structure of the 3rd embodiment, difference is only the structure of mounting groove, in the present embodiment, mounting groove 30 is formed with two the 4th steps 34 at bottom land place, two the 4th steps 34 lay respectively at the both sides of mounting groove 30, distance between permanent magnet 40 and the 4th step 34 is the 4th distance, the ratio of the interval magnetic distance between the 4th distance and two adjacent permanent magnets 40 is greater than or equal to 0.5, the distance I of mounting groove 30 between two the 4th steps 34 is greater than 1/2nd of permanent magnet 40 thickness H, i.e. I>0.5H.By the vibrational power flow of the present embodiment can more stop magnetize time the magnetic line of force form path by two adjacent interpolars every magnetic potential, increase the magnetic line of force entering permanent magnet, under the prerequisite of mechanical strength meeting rotor, the length J of step can be strengthened, increase the area in space, strengthen every magnetic effect, increase the induction magnetic flux of permanent magnet at stator, improve electric efficiency.
Present invention also offers the 9th embodiment of p-m rotor, see Fig. 9, in the present embodiment, p-m rotor is substantially identical with the structure of the 8th embodiment, difference is only, in the present embodiment, the position of mounting groove 30 between the 4th step 34 and permanent magnet 40 is established and is also equipped with fixing step 35, and setting supported by permanent magnet 40 and fixing step 35.The effect arranging fixing step 35 is to ensure that permanent magnet maintains static, and permanent magnet will be offset because of the power being applied to the generation of epitrochanterian external magnetic field, cause the magnetic flux of permanent magnet to reduce, the undersaturated phenomenon that magnetizes occurs.
Present invention also offers a kind of embodiment of magneto, comprise above-mentioned p-m rotor.In the magneto of the present embodiment, permanent magnet is formed with air-gap near one end of rotating shaft and mounting groove between the bottom land of rotating shaft, the more difficult rotor core part by close rotating shaft of magnetic flux i.e. silicon steel sheet are closed, which reduce the leakage field of permanent magnet, make the magnetic of permanent magnet inside close saturated, avoid the motor performance caused because permanent magnet is unsaturated to decline, it also avoid permanent magnet loss of excitation and occur that the problem that motor cannot operate occurs.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from its general principles, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (13)
1. a p-m rotor, described p-m rotor comprises rotor core (10) and is positioned at the rotating shaft (20) at described rotor core (10) middle part, rotor core (10) is provided with along the radially-arranged multiple mounting groove (30) of described rotor core (10), permanent magnet (40) is provided with in described mounting groove (30), it is characterized in that, described permanent magnet (40) and described mounting groove (30) have air-gap (50) between the bottom land of described rotating shaft (20).
2. p-m rotor according to claim 1, it is characterized in that, described permanent magnet (40) and described mounting groove (30) distance between the bottom land of described rotating shaft (20) is the first distance (B), interval magnetic distance between adjacent two mounting grooves (30) is second distance (A), and the ratio between described first distance (B) and described second distance (A) is greater than or equal to 0.5.
3. p-m rotor according to claim 2, is characterized in that, the ratio between described first distance (B) and described second distance (A) is less than or equal to 1.1.
4. p-m rotor according to claim 1, it is characterized in that, described mounting groove (30) is formed with first step (31) and second step (32) at bottom land place, described first step (31) and described second step (32) lay respectively at the both sides of described mounting groove (30), described permanent magnet (40) is directly supported on described first step (31) and described second step (32), described air-gap (50) is formed between described first step (31) and described second step (32), distance between described first step (31) and described second step (32) is greater than 1/2nd of described permanent magnet (40) thickness.
5. p-m rotor according to claim 4, it is characterized in that, the part that described bottom land is positioned between described first step (31) and described second step (32) is arc surface, and described arc surface is recessed into towards described rotating shaft (20).
6. p-m rotor according to claim 1, it is characterized in that, described mounting groove (30) is formed with the 3rd step (33) at bottom land place, described 3rd step (33) is positioned at the middle part of described mounting groove (30), described permanent magnet (40) is directly supported on described 3rd step (33), form described air-gap (50) between described 3rd step (33) and the both sides of described mounting groove (30), the width of described 3rd step (33) is less than 1/2nd of the thickness of described permanent magnet (40).
7. p-m rotor according to claim 6, it is characterized in that, described 3rd step (33) has two arcwall faces (331) and connects the plane (332) of two arcwall faces (331), two described arcwall faces (331) are respectively towards the both sides of described mounting groove (30), described plane (332) and described 3rd step (33) are supported, and the width of described plane (332) is less than 0.25 times of described permanent magnet (40) thickness.
8. p-m rotor according to claim 7, it is characterized in that, the width of described 3rd step (33) is reduced gradually by one end of one end Zhi described plane (332) of being positioned at described bottom land, and the width that described 3rd step (33) is positioned at one end of described bottom land is less than 1/2nd of described permanent magnet (40) thickness.
9. p-m rotor according to claim 1, it is characterized in that, described mounting groove (30) is formed with two the 4th steps (34) at bottom land place, two described 4th steps (34) lay respectively at the both sides of described mounting groove (30), distance between described permanent magnet (40) and described 4th step (34) is the 4th distance, the ratio of the interval magnetic distance between described 4th distance and two adjacent permanent magnets (40) is greater than or equal to 0.5, the distance of described mounting groove (30) between two described 4th steps (34) is greater than 1/2nd of described permanent magnet (40) thickness.
10. p-m rotor according to claim 9, it is characterized in that, the position of described mounting groove (30) between described 4th step (34) and described permanent magnet (40) is provided with fixing step (35), and described permanent magnet (40) and described fixing step (35) support setting.
11. p-m rotors according to claim 1, is characterized in that, described permanent magnet (40) is even number, and the quantity of described permanent magnet (40) is greater than or equal to 4.
12. p-m rotors according to claim 11, is characterized in that, the identical polar of adjacent two described permanent magnets (40) is oppositely arranged.
13. 1 kinds of magnetoes, comprise p-m rotor, it is characterized in that, the p-m rotor of described p-m rotor according to any one of the claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009731.3A CN105490414A (en) | 2015-12-25 | 2015-12-25 | Permanent magnet rotor and permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009731.3A CN105490414A (en) | 2015-12-25 | 2015-12-25 | Permanent magnet rotor and permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105490414A true CN105490414A (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511009731.3A Pending CN105490414A (en) | 2015-12-25 | 2015-12-25 | Permanent magnet rotor and permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105490414A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932804A (en) * | 2016-06-20 | 2016-09-07 | 广东威灵电机制造有限公司 | Rotor for motor and motor with rotor |
| CN108768027A (en) * | 2018-08-15 | 2018-11-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magneto |
| CN109067036A (en) * | 2018-08-03 | 2018-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor structure and the motor with the rotor structure |
| CN113691041A (en) * | 2017-11-01 | 2021-11-23 | 莱克电气股份有限公司 | Rotor core |
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| US20070252469A1 (en) * | 2006-04-19 | 2007-11-01 | Asmo Co., Ltd. | Embedded magnet type rotating electric machine |
| US20130057103A1 (en) * | 2011-09-07 | 2013-03-07 | Samsung Electronics Co., Ltd. | Motor and washing machine having the same |
| EP2808980A2 (en) * | 2013-05-28 | 2014-12-03 | Samsung Electronics Co., Ltd | Motor |
| US20150318746A1 (en) * | 2014-04-30 | 2015-11-05 | Mabuchi Motor Co., Ltd. | Rotor and brushless motor |
| CN205377490U (en) * | 2015-12-25 | 2016-07-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor and permanent magnet motor |
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2015
- 2015-12-25 CN CN201511009731.3A patent/CN105490414A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070252469A1 (en) * | 2006-04-19 | 2007-11-01 | Asmo Co., Ltd. | Embedded magnet type rotating electric machine |
| US20130057103A1 (en) * | 2011-09-07 | 2013-03-07 | Samsung Electronics Co., Ltd. | Motor and washing machine having the same |
| EP2808980A2 (en) * | 2013-05-28 | 2014-12-03 | Samsung Electronics Co., Ltd | Motor |
| US20150318746A1 (en) * | 2014-04-30 | 2015-11-05 | Mabuchi Motor Co., Ltd. | Rotor and brushless motor |
| CN205377490U (en) * | 2015-12-25 | 2016-07-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor and permanent magnet motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932804A (en) * | 2016-06-20 | 2016-09-07 | 广东威灵电机制造有限公司 | Rotor for motor and motor with rotor |
| CN113691041A (en) * | 2017-11-01 | 2021-11-23 | 莱克电气股份有限公司 | Rotor core |
| CN109067036A (en) * | 2018-08-03 | 2018-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor structure and the motor with the rotor structure |
| CN108768027A (en) * | 2018-08-15 | 2018-11-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magneto |
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Application publication date: 20160413 |