CN108400664A - A kind of permanent-magnet motor rotor assembly - Google Patents
A kind of permanent-magnet motor rotor assembly Download PDFInfo
- Publication number
- CN108400664A CN108400664A CN201810466304.5A CN201810466304A CN108400664A CN 108400664 A CN108400664 A CN 108400664A CN 201810466304 A CN201810466304 A CN 201810466304A CN 108400664 A CN108400664 A CN 108400664A
- Authority
- CN
- China
- Prior art keywords
- rotor
- armature spindle
- core
- spindle
- permanent
- 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.)
- Pending
Links
- 238000004080 punching Methods 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000011218 segmentation Effects 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 210000001331 nose Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010862 gear shaping Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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
- 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
- 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 kind of permanent-magnet motor rotor assemblies, including armature spindle, rotor press plate, rotor core, rotor core is made of the connection of multiple rotor punchings, armature spindle is equipped with keyway, rotor punching is equipped with projection key, rotor core is connected with armature spindle by keyway, armature spindle is that female splined shaft includes rotor axle sleeve and spindle nose, when rotor core is mounted on armature spindle, the center of rotor punching inner circle and the line of centres of projection key deviate 1.875 degree of horizontal direction, and adjacent rotor iron core is positive and negative on armature spindle to be laminated.For armature spindle in such a way that rotor axle sleeve is connect with spindle nose, processing is more convenient, it is easier to realize, cost is lower.The line of centres of circle center and projection key deviates 1.875 degree of horizontal direction in rotor punching, and such rotor core and the line at projection key center also offset from 1.875 degree；Adjacent rotor core is positive and negative to be laminated, and rotor core adjacent in this way can mutually stagger 3.75 degree, to form the structure of rotor magnetic pole segmentation dislocation.
Description
Technical field
The present invention relates to motor field, especially a kind of permanent-magnet motor rotor assembly.
Background technology
The rotor component part important as motor, under normal circumstances, rotor will have mating armature spindle, be with armature spindle
It is assembled together, otherwise can not use.The two added together is exactly rotor assembly.Traditional armature spindle is an entirety, is turned
Sub- axis will be processed by the way of gear shaping, implement more complex, and cost is higher.Identical, the rotor in stator structure
The structure of magnetic pole segmentation dislocation can reduce the cogging torque of motor, so as to improve the vibration and noise of motor.Traditional rotor
Magnetic pole segmentation dislocation method is realized in terms of increase other structures, processes more complex, and cost is higher.
Invention content
To solve problem of the prior art, the purpose of the present invention is to provide a kind of permanent-magnet motor rotor assembly, structures
Simply, the low permanent-magnet motor rotor assembly of reasonable design, manufacturing cost, to realize the good permanent magnet motor of motor performance.
The present invention is technical solution used by solving the problems, such as it：
A kind of permanent-magnet motor rotor assembly, including armature spindle, the rotor press plate on armature spindle are mounted on armature spindle
On rotor core, the rotor core by multiple rotor punchings connection form, the armature spindle be equipped with keyway, rotor punching
It is equipped with projection key, rotor core is connected with armature spindle by keyway, and the armature spindle is female splined shaft, the armature spindle
Including rotor axle sleeve and spindle nose, rotor axle sleeve is connected with spindle nose, when the rotor core is mounted on armature spindle, in rotor punching
The line of centres at round center and projection key deviates 1.875 degree of horizontal direction, adjacent rotor iron core positive replicate on armature spindle 1
Pressure.
Preferably, the rotor core is made of the riveting of multiple rotor punchings, and riveting is firm, convenience simple in structure.
Preferably, the rotor axle sleeve and spindle nose are using hot jacket interference fit connection, and the connection structure is simple, alignment
It is good, larger axial force, torque and dynamic loading can be born.
Preferably, the rotor axle sleeve is processed by the way of broaching tool, easy processing, is implemented relatively simple.
Preferably, the rotor punching is stamped to form for silicon steel sheet, and silicon steel sheet magnetic property is good, cheap.
The beneficial effects of the invention are as follows：
By said program it is found that armature spindle is in such a way that rotor axle sleeve is connect with spindle nose, processing is more convenient, it is easier to real
Existing, cost is lower.The line of centres of circle center and projection key deviates 1.875 degree of horizontal direction in rotor punching, in this way by rotor
The rotor core of punching composition and the line of centres of projection key deviate 1.875 degree of horizontal direction；The positive replicate of adjacent rotor core
Pressure, rotor core adjacent in this way can mutually stagger 3.75 degree, to form the structure of rotor magnetic pole segmentation dislocation, not have to increase
Add any structure, processing is simple, is easier to realize.
Description of the drawings
Fig. 1 is overall structure of the present invention；
Fig. 2 is rotor axle sleeve of the present invention and spindle head connecting structure schematic diagram；
Fig. 3 is rotor punching schematic diagram of the present invention；
Fig. 4 is that adjacent rotor iron core of the present invention stacks schematic diagram.
Figure label is：1- armature spindles, 2- rotor press plates, 3- rotor cores, 31- rotor punchings, 4- armature spindles
Set, 5- spindle noses.
Specific implementation mode：
The invention will be further described with example below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of permanent-magnet motor rotor assembly, including armature spindle 1, be located at armature spindle 1
On rotor press plate 2, be mounted on armature spindle 1 on rotor core 3, the rotor core is by 31 connection group of multiple rotor punchings
At the armature spindle 1 is equipped with keyway, and rotor punching 31 is equipped with projection key, and rotor core 3 is coordinated with armature spindle by keyway
Connection, the armature spindle 1 are female splined shaft, and the armature spindle 1 includes rotor axle sleeve 4 and spindle nose 5, and rotor axle sleeve 4 and spindle nose 5 connect
It connects, when the rotor core 3 is mounted on armature spindle 1, the center of 31 inner circle of rotor punching and the line of centres of projection key deviate
1.875 degree of horizontal direction, adjacent rotor iron core 3 is positive and negative on armature spindle 1 to be laminated.
The rotor core 3 is made of the riveting of multiple rotor punchings 31, and riveting is firm, convenience simple in structure.
Using hot jacket interference fit connection, the connection structure is simple, and alignment is good, can hold for the rotor axle sleeve 4 and spindle nose 5
By larger axial force, torque and dynamic loading.
The rotor axle sleeve 4 is processed by the way of broaching tool, easy processing, is implemented relatively simple.
The rotor punching 3 is stamped to form for silicon steel sheet, and silicon steel sheet magnetic property is good, cheap.
For armature spindle 1 in such a way that rotor axle sleeve 4 is connect with spindle nose 5, processing is more convenient, it is easier to realize, cost is lower.
1.875 degree of the center deviation of circle center and projection key in rotor punching 31, the rotor core 3 being made of in this way rotor punching 31 with
1.875 degree of the center deviation of projection key；Adjacent rotor core 3 is positive and negative to be laminated, and rotor core 3 adjacent in this way can be mutually wrong
3.75 degree are opened, to form the structure of rotor magnetic pole segmentation dislocation, is increased without any structure, processing is simple, is easier to realize.
The reason of deviateing 1.875 degree, what the rotor assembly coordinated is the field frame assembly of 48 slots, corresponds to the every slot of stator
Mechanical angle is 360/48=7.5 °, tilts 1.875 ° and mainly considers from following several respects：One, upper and lower two folded rotor cores it
Between, respective poles can be staggered 3.75 °, 3.75 °=7.5 °/2, herein wrong 3.75 ° of pole can reach several with oblique half slot of stator
Identical effect, but skewed stator slot technique is more complex, and cost is higher.If corresponding times of 7.5 ° of wrong polar angle degree two, here
Number, otherwise will produce many clutters in rotor magnetic coupling, influences noise and the vibration of motor, here 3.75 ° of wrong pole
It is 0.5 times of 7.5 °.It three, can be apart between too upper and lower greatly two folded N, S grades in wrong pole in my rotor assembly scheme
It is too close or have intersection, permanent magnetic field leakage field can be caused to increase in this way, to which the efficiency of motor can be reduced；If wrong pole is too small
To the improvement unobvious of cogging torque.
Certainly, the above embodiment is not unique restriction to the present invention, other equivalent technical solutions should also be as at this
Within the protection domain of innovation and creation.
Claims (5)
1. a kind of permanent-magnet motor rotor assembly, including armature spindle (1), the rotor press plate (2) on armature spindle (1), installation
Rotor core (3) on armature spindle (1), the rotor core are made of multiple rotor punchings (31) connection, it is characterised in that：
The armature spindle (1) is equipped with keyway, and rotor punching (31) is equipped with projection key, and rotor core (3) passes through keyway with armature spindle
It is connected, the armature spindle (1) is female splined shaft, and the armature spindle (1) includes rotor axle sleeve (4) and spindle nose (5), armature spindle
Cover (4) and spindle nose (5) connection, when the rotor core (3) is mounted on armature spindle (1), the center of rotor punching (31) inner circle
Deviate 1.875 degree of horizontal direction with the line of centres of projection key, adjacent rotor iron core (3) is positive and negative on armature spindle (1) to be laminated.
2. according to a kind of permanent-magnet motor rotor assembly described in claim 1, it is characterised in that：The rotor core (3) is by more
A rotor punching (31) riveting composition.
3. a kind of permanent-magnet motor rotor assembly according to claim 1, it is characterised in that：The rotor axle sleeve (4) and
Spindle nose (5) is connected using interference fit.
4. a kind of permanent-magnet motor rotor assembly according to claim 1, it is characterised in that：The rotor axle sleeve (4) is adopted
It is processed with the mode of broaching tool.
5. a kind of permanent-magnet motor rotor assembly according to claim 1, it is characterised in that：The rotor punching (31) is
Silicon steel sheet is stamped to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466304.5A CN108400664A (en) | 2018-05-15 | 2018-05-15 | A kind of permanent-magnet motor rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466304.5A CN108400664A (en) | 2018-05-15 | 2018-05-15 | A kind of permanent-magnet motor rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108400664A true CN108400664A (en) | 2018-08-14 |
Family
ID=63102176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810466304.5A Pending CN108400664A (en) | 2018-05-15 | 2018-05-15 | A kind of permanent-magnet motor rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108400664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510350A (en) * | 2018-11-30 | 2019-03-22 | 湘电莱特电气有限公司 | A kind of permanent-magnetic synchronous motor rotor and motor |
| IT202000021841A1 (en) * | 2020-09-16 | 2022-03-16 | Marelli Europe Spa | IMPROVED ROTOR FOR ELECTRIC MOTOR, IN PARTICULAR FOR TRACTION, AND RELATED ELECTRIC MOTOR |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705636Y (en) * | 2004-06-16 | 2005-06-22 | 江门市汉宇电器有限公司 | Centrifugal water discharge pump |
| CN102355073A (en) * | 2011-10-27 | 2012-02-15 | 株洲南车时代电气股份有限公司 | Permanent magnet motor rotor with step skewed poles |
| CN106374657A (en) * | 2016-11-14 | 2017-02-01 | 合普动力股份有限公司 | Staggered pole permanent magnet rotor |
| CN107171468A (en) * | 2017-06-02 | 2017-09-15 | 杨文波 | A kind of design method of permanent magnet machine rotor segmentation |
| CN208226702U (en) * | 2018-05-15 | 2018-12-11 | 佛山市朗特电机有限公司 | A kind of permanent-magnet motor rotor assembly |
-
2018
- 2018-05-15 CN CN201810466304.5A patent/CN108400664A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705636Y (en) * | 2004-06-16 | 2005-06-22 | 江门市汉宇电器有限公司 | Centrifugal water discharge pump |
| CN102355073A (en) * | 2011-10-27 | 2012-02-15 | 株洲南车时代电气股份有限公司 | Permanent magnet motor rotor with step skewed poles |
| CN106374657A (en) * | 2016-11-14 | 2017-02-01 | 合普动力股份有限公司 | Staggered pole permanent magnet rotor |
| CN107171468A (en) * | 2017-06-02 | 2017-09-15 | 杨文波 | A kind of design method of permanent magnet machine rotor segmentation |
| CN208226702U (en) * | 2018-05-15 | 2018-12-11 | 佛山市朗特电机有限公司 | A kind of permanent-magnet motor rotor assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510350A (en) * | 2018-11-30 | 2019-03-22 | 湘电莱特电气有限公司 | A kind of permanent-magnetic synchronous motor rotor and motor |
| IT202000021841A1 (en) * | 2020-09-16 | 2022-03-16 | Marelli Europe Spa | IMPROVED ROTOR FOR ELECTRIC MOTOR, IN PARTICULAR FOR TRACTION, AND RELATED ELECTRIC MOTOR |
| EP3972093A1 (en) * | 2020-09-16 | 2022-03-23 | Marelli Europe S.p.A. | Improved rotor for electric motor, particularly for traction, and related electric motor |
| US11831219B2 (en) | 2020-09-16 | 2023-11-28 | Marelli Europe S.P.A. | Rotor for electric motor, particularly for traction, and related electric motor |
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