CN201160240Y - Rotor structure of motor - Google Patents
Rotor structure of motor Download PDFInfo
- Publication number
- CN201160240Y CN201160240Y CNU2008200440073U CN200820044007U CN201160240Y CN 201160240 Y CN201160240 Y CN 201160240Y CN U2008200440073 U CNU2008200440073 U CN U2008200440073U CN 200820044007 U CN200820044007 U CN 200820044007U CN 201160240 Y CN201160240 Y CN 201160240Y
- Authority
- CN
- China
- Prior art keywords
- ring body
- magnetic ring
- rotor structure
- inner edge
- lug boss
- 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.)
- Expired - Lifetime
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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
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a rotor structure of motor, which comprises a rotating shaft 7 and a magnetic ring body, the magnetic ring body is a hollow cylinder that is surrounded by an outer edge 1 and an inner edge 2, the outer edge 1 of the magnetic ring body is provided with a plurality of outer convex platforms 3 or the outer edge 1 of the magnetic ring body is provided with a plurality of grooves 4. The rotor structure can make the wall thickness of the magnetic ring body also change according to the size of sine wave, the change is adaptable to the change of the magnetic field outside the rotor, so as to reach the effect of smooth operation, low noise and high operation efficiency.
Description
Technical field:
The utility model relates to a kind of rotor structure of motor.
Background technology:
The rotor of tradition plastic package brushless direct current motor comprises rotating shaft and magnetic ring body, connects by rotor core between most of rotating shaft and the magnetic ring body.As shown in Figure 1 and Figure 2, magnetic ring body is the hollow cylinder structure that is surrounded by outer rim M and inner edge N, and outer rim M and inner edge N are circular, so the wall thickness of magnetic ring body is to equate everywhere.There is following shortcoming in this structure: because the changes of magnetic field of rotor outside is the rule variation by sine wave, the magnetic ring body incompatibility external magnetic field environmental change of this uniform thickness, generation move not steadily, big, the inefficient problem of noise.
Summary of the invention:
The rotor structure of the motor that the purpose of this utility model provides and a kind ofly operates steadily, noise is little, operational efficiency is high.
The technical solution of the utility model is achieved in that
A kind of rotor structure of motor, comprise rotating shaft and magnetic ring body, magnetic ring body is the hollow cylinder structure that is surrounded by outer rim and inner edge, and the outer rim that the outer rim of described magnetic ring body is provided with a plurality of outer lug boss of heaving or described magnetic ring body is provided with the groove of a plurality of depressions.The wall thickness that the utility model makes magnetic ring body is also with the rule size variation of sine wave, adapts with the changes of magnetic field of rotor outside, reach operate steadily, noise is little, efficient is high effect.
Above-mentioned described outer lug boss is an arc, and described arc outer lug boss is high in the middle of being, both sides are low.Meet sinusoidal wave rule and change, and handling ease.Arc can be meant circular arc or ellipse arc.
Above-mentioned described outer lug boss is evenly to distribute along circumference, and the number of outer lug boss is 2 at least.Handling ease meets sinusoidal wave rule more and changes.Described inner edge is circular, and magnetic ring body is to install by rotor core and rotating shaft to couple together.
Above-mentioned described groove is an arc, and described arc groove is low in the middle of being, the both sides height meets sinusoidal wave rule and changes, and handling ease.Arc can be meant circular arc or ellipse arc.
Above-mentioned described groove is evenly to distribute along circumference, and the number of groove is 2 at least.Simple in structure, easily manufactured.Described inner edge is circular, and magnetic ring body is to install with the rotating shaft injection moulding to couple together.
Above-mentioned inner edge is provided with a plurality of inner convex platforms of heaving.Simple in structure, conveniently be linked and packed.
Inner convex platform on the above-mentioned described inner edge is corresponding with the radial position of outer rim upper groove or outer lug boss.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structure chart of conventional rotors upper magnetic ring body;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is first kind of schematic diagram of implementing structure of magnetic ring body of the present utility model;
Fig. 4 is first kind of stereogram of implementing structure of magnetic ring body of the present utility model;
Fig. 5 is that the utility model is implemented structural representation for second kind;
Fig. 6 is second stereogram of implementing structure of the utility model;
Fig. 7 is the 3rd schematic diagram of implementing structure of the utility model;
Fig. 8 is the 3rd stereogram of implementing structure of the utility model;
The 4th schematic diagram of implementing structure of Fig. 9 the utility model;
Figure 10 is the 4th stereogram of implementing structure of the utility model;
The 5th schematic diagram of implementing structure of Figure 11 the utility model;
Figure 12 is the 5th stereogram of implementing structure of the utility model;
The 6th schematic diagram of implementing structure of Figure 13 the utility model;
The 7th schematic diagram of implementing structure of Figure 14 the utility model;
Figure 15 is the 8th schematic diagram of implementing structure of the utility model;
Figure 16 is the 8th stereogram of implementing structure of the utility model
Embodiment:
Embodiment 1: as shown in Figure 3, Figure 4, comprise rotating shaft 7 and magnetic ring body among the embodiment 1 of the present utility model, magnetic ring body is the hollow cylinder structure that is surrounded by outer rim 1 and inner edge 2, the outer rim 1 of described magnetic ring body is provided with a plurality of outer lug boss of heaving 3, described outer lug boss 3 is arcs, described arc outer lug boss 3 is high in the middle of being, both sides are low.Described outer lug boss 3 is evenly to distribute along circumference, and the number of outer lug boss 3 is 2 at least.Described inner edge 2 is circular, and magnetic ring body is to install with rotating shaft 7 by rotor core 5 to couple together.
Embodiment 2: as Fig. 5, shown in Figure 6, comprise rotating shaft 7 and magnetic ring body among the embodiment 2 of the present utility model, magnetic ring body is the hollow cylinder structure that is surrounded by outer rim 1 and inner edge 2, the outer rim 1 of described magnetic ring body is provided with the groove 4 of a plurality of depressions, described groove 4 is arcs, described arc groove 4 is low in the middle of being, the both sides height.Described groove 4 is evenly to distribute along circumference, and the number of groove 4 is 2 at least.Described inner edge 2 is circular, and magnetic ring body is to install with rotating shaft 7 injection mouldings to couple together.Promptly utilize the space between magnetic ring body and the rotating shaft 7 to carry out injection moulding.
Embodiment 3: as shown in Figure 7 and Figure 8, compare with embodiment 2, inner edge 2 is provided with a plurality of inner convex platforms of heaving 6.Inner convex platform 6 on the inner edge 2 is corresponding with the radial position of outer rim 1 upper groove 4, and inner convex platform 6 and outer rim 1 upper groove 4 is radially aliging among the figure.Magnetic ring body is to be mounted to one with rotating shaft 7 injection mouldings to couple together.
Embodiment 4: as Fig. 9, shown in Figure 10, compare with embodiment 1, inner edge 2 is provided with a plurality of inner convex platforms of heaving 6, and the inner convex platform 6 on the inner edge 2 is corresponding with outer lug boss 3 radial positions on the outer rim 1, inner convex platform 6 staggers with outer lug boss 3 among the figure, and inner convex platform 6 is crossed over adjacent two outer lug boss 3.
Embodiment 5: as Figure 11, shown in Figure 12, compare with embodiment 1, outer rim 1 is circular among the embodiment 5 of the present utility model, and inner edge 2 is provided with a plurality of inner convex platforms of heaving 6.Inner convex platform 6 is arcs.
Embodiment 6: as shown in figure 13, compare with embodiment 5, outer rim 1 is circular among the embodiment 5 of the present utility model, and inner edge 2 is provided with a plurality of inner convex platforms of heaving 6.Inner convex platform 6 is trapezoidal.
Embodiment 7: as shown in figure 14, compare with embodiment 6, outer rim 1 is circular among the embodiment 5 of the present utility model, and inner edge 2 is provided with a plurality of inner convex platforms of heaving 6.Inner convex platform 6 is triangles.
Embodiment 8: as Figure 15, shown in Figure 16, compare with embodiment 5, outer rim 1 is circular among the embodiment 8 of the present utility model, and inner edge 2 is provided with a plurality of trapezoidal inner convex platforms of heaving 6.Inner edge 2 is gear-like.
Claims (9)
1, a kind of rotor structure of motor, comprise rotating shaft (7) and magnetic ring body, magnetic ring body is the hollow cylinder structure that is surrounded by outer rim (1) and inner edge (2), it is characterized in that: the outer rim (1) that the outer rim of described magnetic ring body (1) is provided with a plurality of outer lug boss of heaving (3) or described magnetic ring body is provided with the groove (4) of a plurality of depressions.
2, the rotor structure of a kind of motor according to claim 1 is characterized in that: described outer lug boss (3) is an arc, and described arc outer lug boss (3) is high in the middle of being, both sides are low.
3, the rotor structure of a kind of motor according to claim 1 and 2 is characterized in that: described outer lug boss (3) is evenly to distribute along circumference, and the number of outer lug boss (3) is 2 at least.
4, the rotor structure of a kind of motor according to claim 1 and 2 is characterized in that: described inner edge (2) is circular, and magnetic ring body is to install with rotating shaft (7) by rotor core (5) to couple together.
5, the rotor structure of a kind of motor according to claim 1 is characterized in that: described groove (4) is an arc, and described arc groove (4) is low in the middle of being, the both sides height.
6, a kind of rotor structure of motor according to claim 1 or 5, it is characterized in that: described groove (4) is evenly to distribute along circumference, the number of groove (4) is 2 at least.
7, a kind of rotor structure of motor according to claim 1 or 5 is characterized in that: described inner edge (2) is circular, and magnetic ring body is to install with rotating shaft (7) injection moulding to couple together.
8, according to the rotor structure of claim 1,2 or 5 described a kind of motors, it is characterized in that: inner edge (2) is provided with a plurality of inner convex platforms of heaving (6).
9, the rotor structure of a kind of motor according to claim 8 is characterized in that: the inner convex platform (6) on the inner edge (2) is corresponding with the radial position of outer rim (1) upper groove (4) or outer lug boss (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200440073U CN201160240Y (en) | 2008-02-05 | 2008-02-05 | Rotor structure of motor |
| KR1020080118639A KR101002961B1 (en) | 2008-02-05 | 2008-11-27 | Motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200440073U CN201160240Y (en) | 2008-02-05 | 2008-02-05 | Rotor structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201160240Y true CN201160240Y (en) | 2008-12-03 |
Family
ID=40110821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200440073U Expired - Lifetime CN201160240Y (en) | 2008-02-05 | 2008-02-05 | Rotor structure of motor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101002961B1 (en) |
| CN (1) | CN201160240Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794329A (en) * | 2014-02-27 | 2014-05-14 | 张家港倍恩特磁塑科技有限公司 | Radial magnetization plastic magnet |
| CN103956839A (en) * | 2014-03-28 | 2014-07-30 | 湖北立锐机电有限公司 | Magnet ring structure and permanent magnetic synchronous motor using same |
| CN107431420A (en) * | 2015-02-26 | 2017-12-01 | 美国轮轴制造公司 | Brshless DC motor |
| CN114245960A (en) * | 2019-08-12 | 2022-03-25 | 博马泰克管理股份公司 | Hollow permanent magnet cylinder with at least one groove or gap to reduce eddy currents |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU169538U1 (en) * | 2015-12-08 | 2017-03-22 | Федеральное государственное бюджетное учреждение науки Ордена Трудового Красного Знамени Институт химии силикатов им. И.В. Гребенщикова Российской академии наук (ИХС РАН) | Permanent Magnet Synchronous Machine Rotor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3586804B2 (en) * | 1998-02-17 | 2004-11-10 | 三菱電機株式会社 | Plastic magnet rotor |
| JP2003309941A (en) | 2002-04-15 | 2003-10-31 | Toyoda Mach Works Ltd | Rotor of motor |
| JP4797431B2 (en) * | 2005-05-02 | 2011-10-19 | 三菱電機株式会社 | Permanent magnet type motor |
-
2008
- 2008-02-05 CN CNU2008200440073U patent/CN201160240Y/en not_active Expired - Lifetime
- 2008-11-27 KR KR1020080118639A patent/KR101002961B1/en active IP Right Grant
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794329A (en) * | 2014-02-27 | 2014-05-14 | 张家港倍恩特磁塑科技有限公司 | Radial magnetization plastic magnet |
| CN103956839A (en) * | 2014-03-28 | 2014-07-30 | 湖北立锐机电有限公司 | Magnet ring structure and permanent magnetic synchronous motor using same |
| CN103956839B (en) * | 2014-03-28 | 2016-04-13 | 湖北立锐机电有限公司 | Magnet ring structure and use its permagnetic synchronous motor |
| CN107431420A (en) * | 2015-02-26 | 2017-12-01 | 美国轮轴制造公司 | Brshless DC motor |
| CN107431420B (en) * | 2015-02-26 | 2019-12-13 | 美国轮轴制造公司 | Brushless DC motor |
| US10673290B2 (en) | 2015-02-26 | 2020-06-02 | American Axle & Manufacturing, Inc. | Brushless DC electric motor |
| TWI719013B (en) * | 2015-02-26 | 2021-02-21 | 美商美國輪軸製造公司 | Method for forming brushless dc electric motor and method for forming rotor |
| CN114245960A (en) * | 2019-08-12 | 2022-03-25 | 博马泰克管理股份公司 | Hollow permanent magnet cylinder with at least one groove or gap to reduce eddy currents |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101002961B1 (en) | 2010-12-21 |
| KR20090086020A (en) | 2009-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081203 |
|
| CX01 | Expiry of patent term |